Weighted bag

A weighted bag having an outer shell and a handle assembly. The outer shell has a plurality of panels and at least one of one of a pair of slots and a first end loop assembly and a second end loop assembly spaced apart from the first end loop assembly coupled to the plurality of panels. The handle assembly has a handle grasping member and a strapping assembly, the strapping assembly extending from the handle grasping member and interfacing with at least one of the pair of slots and the first and second end loop assemblies so as to couple the handle assembly to the outer shell.

BACKGROUND OF THE DISCLOSURE

1. Field of the Disclosure

The disclosure relates in general to weightlifting devices, and more particularly, to a weighted bag for use in various weightlifting and other exercises.

2. Background Art

The use of different devices in the lifting of weights and general exercising is well known in the art. Many such exercises and lifts generally utilize a rigid or solid weight that is coupled to a handle, a bar or a cable and pulley system. Such devices include lat machines, barbells, kettlebells, dumbbells and the like.

Increasingly, however, dynamic, or shape changing devices have been utilized. These devices include, but are not limited to shape changing platforms, such as hemispherically shaped structures which are semi-rigid, inflatable structures and the like. Other such devices include balls or bags that can be lifted, carried, thrown or otherwise manipulated.

Problematically, these non-rigid, flexible devices tend to experience unpredictable forces and non-uniform loading depending on how they are manipulated and/or how they are grasped, dropped or otherwise impacted. At the same time, the material from which such devices are made, by definition, are generally flexible and capable of shape changing. Moreover, where a handle or the like is introduced, the coupling of the handle to the bag is problematic and often a source of deterioration, degradation and failure of the bag. For example openings, tears, rips and the like are often formed proximate the stitching or other joining between the handle and the bag panels, as stress concentrations are experienced in such locations.

BRIEF SUMMARY

The disclosure generally relates to various embodiments of a bag having an outer shell defining an inner cavity configured to receive a filler material to create a weighted bag. Any of the embodiments herein may further include an inner bag positioned in the inner cavity and connected to an inner surface of the shell, which is configured to be filled with the filler material, e.g., by being in communication with an opening in the shell.

Aspects of the disclosure relate to a bag configured to be filled with a filler material that includes a shell having a cylindrical portion with a circular cylindrical shape and opposed circular ends connected to the cylindrical portion, where the cylindrical portion and the ends of the shell combine to define and enclose an inner cavity, and where the shell has an opening providing access to the inner cavity and a closure mechanism configured for selectively opening and closing the opening, an inner bag positioned in the inner cavity and connected to an inner surface of the shell, a filling mechanism, and a handle assembly. The inner bag is in communication with the opening and is configured to be filled with the filler material through the opening. The filling mechanism includes a funnel having a proximal end connected to the inner surface of the shell and a distal end defining an inlet in communication with the inner bag, where the funnel is flexible and is configured to be extendible by extending the distal end outward through the opening for filling the filler material into the inner bag through the opening and collapsible by collapsing the funnel within the opening. The filling mechanism further includes a funnel closure and a funnel securing structure, the funnel closure having a first engaging portion and a second engaging portion positioned on inner surfaces of opposite sides of the funnel proximate the distal end and configured to releasably engage each other to close the inlet, and the funnel securing structure having a first securing member and a second securing member positioned on outer surfaces of the funnel at different distances from the distal end, with the first and second securing members configured to releasably engage each other to secure the funnel in a collapsed position. The handle assembly includes a handle configured to be grasped by a user and first and second strap portions engaged with the handle and extending from the handle to engage the cylindrical portion of the shell. The first strap portion extends around at least a first portion of a circumference of the cylindrical portion in a first circumferential direction, and the second strap portion extends around at least a second portion of the circumference of the cylindrical portion in a second circumferential direction. The opening may be defined in the cylindrical portion of the shell in one configuration, but may be located in a different portion of the shell.

According to one aspect, the first and second strap portions are non-fixedly engaged with the handle and/or non-fixedly engaged with the shell.

According to another aspect, the handle has a central passage, and the first and second strap portions extend into the central passage of the handle.

According to a further aspect, the filling mechanism further includes a pair of grasping handles connected to opposite sides of the funnel proximate the distal end and configured for grasping by the user.

According to yet another aspect, the first and second strap portions combine to extend around the entire circumference of the cylindrical portion and are connected together at a joint to form a circumferential strap engaged with the handle.

According to a still further aspect, the cylindrical portion of the shell is formed by a single cylindrical panel of a fabric material, and each of the opposed ends is formed of a single circular panel of the fabric material.

Additional aspects of the disclosure relate to a bag that includes a shell having a cylindrical portion having a circular cylindrical shape and opposed ends connected to the cylindrical portion and each having a circular shape, where the cylindrical portion and the ends of the shell combine to define and enclose an inner cavity, and where the shell has an opening providing access to the inner cavity and a closure mechanism configured for selectively opening and closing the opening, and further includes an inner bag positioned in the inner cavity and connected to an inner surface of the shell, where the inner bag is in communication with the opening and is configured to be filled with the filler material through the opening, a filling mechanism, and a handle assembly. The filling mechanism includes a funnel having a proximal end connected to the inner surface of the shell and a distal end defining an inlet in communication with the inner bag, where the funnel is flexible and is configured to be extendible by extending the distal end outward through the opening for filling the filler material into the inner bag through the opening and collapsible by collapsing the funnel within the opening. The filling mechanism further includes a funnel closure and a funnel securing structure, the funnel closure having a first engaging portion and a second engaging portion positioned on inner surfaces of opposite sides of the funnel proximate the distal end and configured to releasably engage each other to close the inlet, and the funnel securing structure has a first securing member and a second securing member positioned on outer surfaces of the funnel at different distances from the distal end, with the first and second securing members configured to releasably engage each other to secure the funnel in a collapsed position. The handle assembly includes a handle configured to be grasped by a user, and first and second strap portions engaged with the handle and extending from a first end of the handle to engage the cylindrical portion of the shell. The first strap portion extends circumferentially around at least a first portion of the cylindrical portion, and the second strap portion extends circumferentially around at least a second portion of the cylindrical portion, where the first strap portion and the second strap portion are parts of a continuous strap extending through the handle from the first end to the second end. The opening may be defined in the cylindrical portion of the shell in one configuration, but may be located in a different portion of the shell.

According to one aspect, the first and second strap portions are non-fixedly engaged with the handle and/or are non-fixedly engaged with the shell.

According to another aspect, the cylindrical portion of the shell is formed by a single cylindrical panel of a fabric material, and each of the opposed ends is formed of a single circular panel of the fabric material.

According to a further aspect, the continuous strap may be a single, integral strap that extends through the handle from the first end to the second end.

Further aspects of the disclosure relate to a bag that includes a shell having a cylindrical portion, a first end, and a second end opposite the first end, where the cylindrical portion and the first and second ends of the shell combine to define and enclose an inner cavity configured to contain the filler material, and where the shell has an opening providing access to the inner cavity for filling the filler material into the inner cavity, and further includes a handle assembly. The handle assembly includes a handle configured to be grasped by a user, a first peripheral strap engaged with the handle and extending from the handle around a periphery of the cylindrical portion proximate the first end to engage the shell, and a second peripheral strap engaged with the handle and extending from the handle around the periphery of the cylindrical portion proximate the second end to engage the shell. The handle assembly further includes a central strap extending from the handle around the first end, a portion of the cylindrical portion, and the second end to engage the shell.

According to one aspect, the cylindrical portion has a circular cylindrical shape, the first and second ends are circular in shape, and the first and second peripheral straps are circumferential straps that extend around a circumference of the cylindrical portion.

According to a further aspect, the first peripheral strap extends from a first end of the handle in first and second opposed peripheral directions, the second peripheral strap extends from a second end of the handle opposite the first end in the first and second peripheral directions, and the central strap extends from the first end and the second end of the handle.

According to yet another aspect, the handle is positioned above a top of the shell, and the central strap extends across the portion of the cylindrical portion on a bottom of the shell.

According to a still further aspect, the first peripheral strap includes a first strap portion extending in a first peripheral direction from the handle and a second strap portion extending in a second peripheral direction from the handle that is opposite to the first peripheral direction, where the first and second strap portions are connected at a first joint spaced from the handle to form the first peripheral strap. In this configuration, the second peripheral strap includes a third strap portion extending in the first peripheral direction from the handle and a fourth strap portion extending in the second peripheral direction from the handle, where the third and fourth strap portions are connected at a second joint spaced from the handle to form the second peripheral strap.

According to an additional aspect, the first peripheral strap, the second peripheral strap, and the central strap all non-fixedly engage the shell and are moveable with respect to the shell. In one configuration, the first end of the shell has a first slot and the second end of the shell has a second slot, and the central strap extends through the first slot and the second slot to retain the central strap in non-fixed engagement with the shell. The bag may also include a first retaining structure including a first channel extending at least partially around the periphery of the cylindrical portion proximate the first end, and a second retaining structure including a second channel extending at least partially around the periphery of the cylindrical portion proximate the second end, where the first circumferential strap extends through the first channel and the second circumferential strap extends through the second channel to retain the first and second circumferential straps in non-fixed engagement with the shell.

Still further aspects of the disclosure relate to bag configured to be filled with a filler material that includes a shell having a cylindrical portion having a circular cylindrical shape and opposed first and second ends connected to the cylindrical portion and each having a circular shape, where the cylindrical portion and the first and second ends of the shell combine to define and enclose an inner cavity configured to contain the filler material, and where the shell has an opening providing access to the inner cavity for filling the filler material into the inner cavity, as well as a handle assembly and first and second loop assemblies engaged with the handle and the shell. The handle assembly includes a handle configured to be grasped by a user and having first and second opposed handle ends, a first circumferential strap engaged with the handle and extending from the first handle end around a circumference of the cylindrical portion proximate the first handle end to engage the shell, and a second circumferential strap engaged with the handle and extending from the second handle end around the circumference of the cylindrical portion proximate the second handle end to engage the shell. The first loop assembly defines a first channel extending at least partially around the circumference of the cylindrical portion proximate the first end and includes a plurality of first cross supports extending across the first channel, where the first circumferential strap is received in the first channel and the first cross supports engage the first circumferential strap to retain the first circumferential strap in non-fixed engagement with the shell. The second loop assembly defines a second channel extending at least partially around the circumference of the cylindrical portion proximate the second end and includes a plurality of second cross supports extending across the second channel, where the second circumferential strap is received in the second channel and the second cross supports engage the second circumferential strap to retain the second circumferential strap in non-fixed engagement with the shell.

According to one aspect, the first circumferential strap includes a first strap portion extending in a first circumferential direction from the first handle end and a second strap portion extending in a second circumferential direction that is opposite to the first peripheral direction from the first handle end, where the first and second strap portions are connected at a first joint spaced from the handle to form the first circumferential strap. The second circumferential strap includes a third strap portion extending in the first circumferential direction from the second handle end and a fourth strap portion extending in the second circumferential direction from the second handle end, where the third and fourth strap portions are connected at a second joint spaced from the handle to form the second circumferential strap. In one configuration, the first strap portion and the third strap portion are formed as a first integral strap that extends through the handle from the first handle end to the second handle end, and the second strap portion and the fourth strap portion are formed as a second integral strap that extends through the handle from the first handle end to the second handle end.

According to a further aspect, the first cross supports are arranged in a first alternating pattern and extend at oblique angles across the first channel, and the second cross supports are arranged in a second alternating pattern and extend at oblique angles across the second channel. In one configuration, the first cross supports and the second cross supports form triangular gaps between adjacent cross supports of the first cross supports and the second cross supports. In an additional configuration, each of the first cross supports overlaps with adjacent first cross supports, and each of the second cross supports overlaps with adjacent second cross supports. In a further configuration, all of the plurality of first cross supports are connected to the shell along first and second continuous circumferential seams that are spaced from each other and located on opposite sides of the first channel, and all of the plurality of second cross supports are connected to the shell along third and fourth continuous circumferential seams that are spaced from each other and located on opposite sides of the second channel. In this of another configuration, the first loop assembly may further include a first circumferential support connected to the shell and extending at least partially around the shell between the first cross supports and the shell, such that the first channel is defined between the first cross supports and the first circumferential support, and the second loop assembly may further include a second circumferential support connected to the shell and extending at least partially around the shell between the second cross supports and the shell, such that the second channel is defined between the second cross supports and the second circumferential support. The first and second continuous circumferential seams may also connect the first circumferential support to the shell, and the third and fourth continuous circumferential seams may also connect the second circumferential support to the shell in this configuration. In yet another configuration, the first and second cross supports are oriented such that adjacent first cross supports and adjacent second cross supports are angled at 60-70° with each other.

Other aspects of the disclosure relate to a bag configured to be filled with a filler material, including a shell having a cylindrical portion having a circular cylindrical shape and opposed first and second ends connected to the cylindrical portion and each having a circular shape, where the cylindrical portion and the first and second ends of the shell combine to define and enclose an inner cavity configured to contain the filler material, and where the shell has an opening providing access to the inner cavity for filling the filler material into the inner cavity, as well as a handle assembly and first and second retaining structures engaged with the handle and the shell. The handle assembly includes a handle configured to be grasped by a user and having first and second opposed handle ends, a first circumferential strap engaged with the handle and extending from the first handle end at least partially around a circumference of the cylindrical portion proximate the first handle end to engage the shell, and a second circumferential strap engaged with the handle and extending from the second handle end at least partially around the circumference of the cylindrical portion proximate the second handle end to engage the shell. The first retaining structure includes a first channel extending circumferentially at least partially around the cylindrical portion proximate the first end, where the first circumferential strap extends through the first channel to retain the first circumferential strap in non-fixed engagement with the shell. The second retaining structure includes a second channel extending circumferentially at least partially around the cylindrical portion proximate the second end, wherein the second circumferential strap extends through the second channel to retain the second circumferential strap in non-fixed engagement with the shell.

According to one aspect, the first circumferential strap includes a first strap portion extending in a first circumferential direction from the first handle end and a second strap portion extending in a second circumferential direction that is opposite to the first peripheral direction from the first handle end, where the first and second strap portions are connected at a first joint spaced from the handle to form the first circumferential strap. The second circumferential strap includes a third strap portion extending in the first circumferential direction from the second handle end and a fourth strap portion extending in the second circumferential direction from the second handle end, where the third and fourth strap portions are connected at a second joint spaced from the handle to form the second circumferential strap. In one configuration, the first strap portion and the third strap portion are formed as a first integral strap that extends through the handle from the first handle end to the second handle end, and the second strap portion and the fourth strap portion are formed as a second integral strap that extends through the handle from the first handle end to the second handle end.

According to a further aspect, the first retaining structure includes a plurality of first cross supports extending across the first channel, such that the first cross supports engage the first circumferential strap to retain the first circumferential strap in the non-fixed engagement with the shell, and the second retaining structure includes a plurality of second cross supports extending across the second channel, such that the second cross supports engage the second circumferential strap to retain the second circumferential strap in non-fixed engagement with the shell.

According to yet another aspect, the first cross supports are arranged in a first alternating pattern and extend at oblique angles across the first channel, and the second cross supports are arranged in a second alternating pattern and extend at oblique angles across the second channel.

Other aspects of the disclosure relate to a bag configured to be filled with a filler material, including a shell having a cylindrical portion having a circular cylindrical shape and opposed first and second ends connected to the cylindrical portion and each having a circular shape, where the cylindrical portion and the first and second ends of the shell combine to define and enclose an inner cavity configured to contain the filler material, where the shell has an opening providing access to the inner cavity for filling the filler material into the inner cavity, as well as a handle assembly engaged with the shell. The first end includes a first outer panel on an outer surface of the shell and a first inner panel on an inner surface of the shell, with a first slot defined between the first outer and inner panels, and the second end includes a second outer panel on the outer surface of the shell and a second inner panel on the inner surface of the shell, with a second slot defined between the second outer and inner panels. The handle assembly includes a handle configured to be grasped by a user and having first and second opposed handle ends, and a central strap engaging the handle and extending from the first handle end around the first end of the shell and through the first slot, across a bottom of the cylindrical portion, and around the second end of the shell and through the second slot. The central strap extends through the first and second slots retains the central strap in non-fixed engagement with the shell.

According to one aspect, the central strap includes a first strap portion extending from the first handle end around the first end of the shell and through the first slot, and at least partially across the bottom of the shell, and a second strap portion extending from the second handle end around the second end of the shell and through the second slot, and at least partially across the bottom of the shell, where the first and second strap portions are connected at a joint spaced from the handle to form the central strap. In one configuration, the first strap portion and the second strap portion are formed as a single, integral strap that extends through the handle from the first handle end to the second handle end.

According to another aspect, the first slot has a first upper opening and a first lower opening in the first outer panel, such that the central strap extends through the first upper and lower openings, and the second slot has a second upper opening and a second lower opening in the second outer panel, such that the central strap extends through the second upper and lower openings.

Other aspects of the disclosure relate to a bag configured to be filled with a filler material, including a shell having a central body portion and opposed top and bottom ends connected to the central body portion, where the central body portion and the top and bottom ends of the shell combine to define and enclose an inner cavity configured for containing the filler material. The central body portion has a tapered shape such that at least one of a minimum width and a perimeter of the central body portion is smaller at the bottom end and larger at the top end, and the bottom end is smaller than the top end, and wherein the shell has an opening providing access to the inner cavity.

According to one aspect, the central body portion has a frusto-conical shape, and the top and bottom ends have circular shapes, such that the minimum width of the central body portion is a diameter, and the perimeter of the central body portion is a circumference.

According to another aspect, a ratio of a minimum width of the top end to a minimum width of the bottom end is 1.25:1-2:1. In one configuration, the ratio of the minimum width of the top end to the minimum width of the bottom end is 1.5:1-1.75:1.

According to a further aspect, a ratio of a surface area of the top end to a surface area of the bottom end is 1.5:1-4:1. In one configuration, the ratio of the surface area of the top end to the surface area of the bottom end is 2.25:1-3:1.

According to yet another aspect, the central body portion has a taper angle of 6-10° with respect to a central axis of the bag. In one configuration, the taper angle of the central body portion with respect to the central axis of the bag is 7-9°.

According to a still further aspect, the central body portion has a cross-sectional area taken perpendicular to a central axis of the bag that is smaller at the bottom end and larger at the top end.

Other aspects of the disclosure relate to a bag configured to be filled with a filler material, including a shell having a central body portion that is elongated between opposed first and second ends and has a top and a bottom extending between the first and second ends, where the central body portion and the first and second ends of the shell combine to define and enclose an inner cavity configured for containing the filler material, and where the shell has an opening providing access to the inner cavity and a closure mechanism configured for selectively opening and closing the opening, as well as a handle assembly engaged with the shell. The handle assembly includes a first gripping member connected to the shell proximate a first juncture between the top and the first end and a second gripping member connected to the shell proximate a second juncture between the top and the second end. The first gripping member extends outward from the shell at an oblique angle to at least one of the top, the first end, and the lateral centerline, and the second gripping member extends outward from the shell at an oblique angle to at least one of the top, the second end, and the lateral centerline.

According to one aspect, the first gripping member includes a first loop having ends connected to front and rear sides of the shell, and the second gripping member includes a second loop having ends connected to the front and rear sides of the shell.

According to another aspect, the shell is formed of a single panel extending around front and rear sides of the shell and connected to itself by seams at the first and second ends and a lateral seam extending between the first and second ends. In one configuration, the lateral seam extends across the rear side of the shell, and the opening is defined on the front side of the shell.

According to a further aspect, the handle assembly further includes a first base connected to the shell and extending on the front side and the rear side of the shell and having a first crossing portion extending over the top between the front side and the rear side proximate a first juncture between the top and the first end, and a second base connected to the shell and extending on the front side and the rear side and having a second crossing portion extending over the top between the front side and the rear side proximate a second juncture between the top and the second end. The first gripping member is connected to the first base and extends outward from the first base, and the second gripping member is connected to the second base and extends outward from the second base. In one configuration, the first crossing portion has a first inner edge and the second crossing portion has a second inner edge, and the first and second inner edges each form angles of 80-100° with the top of the shell.

According to yet another aspect, the shell has a rectangular shape defined by the top, the bottom, and the first and second ends, and/or the shell is configured to have an oval shape when viewed from the first or second end when filled.

According to a still further aspect, the shell has a length measured between the first and second ends and a height measured between the top and the bottom, and the length is at least two times the height.

Other aspects of the disclosure relate to a bag configured to be filled with a filler material, including a shell having a front side and a back side and having a central body portion and opposed first and second ends, the central body portion having a top and a bottom extending between the first and second ends, where the central body portion and the first and second ends of the shell combine to define and enclose an inner cavity configured for containing the filler material, and where the shell has an opening providing access to the inner cavity, as well as a handle assembly engaged with the shell. The handle assembly includes a first base connected to the shell and extending on the front side and the rear side and having a first crossing portion extending over the top between the front side and the rear side proximate a first juncture between the top and the first end, a first gripping member connected to the first base and extending outward from the first base, a second base connected to the shell and extending on the front side and the rear side and having a second crossing portion extending over the top between the front side and the rear side proximate a second juncture between the top and the second end, and a second gripping member connected to the second base and extending outward from the second base. The first crossing portion has a first inner edge and the second crossing portion has a second inner edge, and the first and second inner edges each form angles of 80-100° with the top of the shell.

According to one aspect, the first base further includes a first front angling portion extending on the front side of the shell to the top of the shell at oblique angles to the first end and the top of the shell and a first rear angling portion extending on the rear side of the shell to the top of the shell at oblique angles to the first end and the top of the shell, where the first crossing portion extends between the first front angling portion and the first rear angling portion. In one configuration, the first front angling portion extends on the front side of the shell from the first end to the top of the shell, and the first rear angling portion extends on the rear side of the shell from the first end to the top of the shell. In an additional configuration, the second base further includes a second front angling portion extending on the front side of the shell from the second end to the top of the shell at oblique angles to the second end and the top of the shell and a second rear angling portion extending on the rear side of the shell from the second end to the top of the shell at oblique angles to the second end and the top of the shell, where the second crossing portion extends between the second front angling portion and the second rear angling portion. In a further configuration, the first crossing portion forms juncture angles with the first front angling portion and the first rear angling portion that are 110-140°. In yet another configuration, the first crossing portion has a first width between the first inner edge and a first outer edge of the first crossing portion, and the first front angling portion and the first rear angling portion have widths defined between inner and outer edges thereof, where the first width is smaller than the widths of the first front angling portion and the first rear angling portion. In a still further configuration, the first base is formed of a continuous panel, and the first base is folded over itself at the first crossing portion, such that a first surface of the continuous panel forms an outer surface of the first front angling portion and an inner surface of the first rear angling portion.

According to another aspect, the shell has a lateral centerline extending between the first and second ends, where the first gripping member extends outward from the first base at an oblique angle to at least one of the top, the first end, and the lateral centerline, and the second gripping member extends outward from the first base at an oblique angle to at least one of the top, the second end, and the lateral centerline.

According to a further aspect, the first gripping member includes a first loop having ends connected to the first base on the front and rear sides of the shell and the second gripping member includes a second loop having ends connected to the second base on the front and rear sides of the shell.

According to yet another aspect, the shell is formed of a single panel extending around the front and rear sides and connected to itself by seams at the first and second ends and a lateral seam extending between the first and second ends. In one configuration the lateral seam extends across the rear side of the shell, and the opening is defined on the front side of the shell.

According to a still further aspect, the shell has a rectangular shape defined by the top, the bottom, and the first and second ends, and/or the shell is configured to have an oval shape when viewed from the first or second end when filled.

Other features and advantages of the disclosure will be apparent from the following description taken in conjunction with the attached drawings.

DETAILED DESCRIPTION OF THE DISCLOSURE

While this disclosure is susceptible of embodiment in many different forms, there is shown in the drawings and described herein in detail a specific embodiment(s) with the understanding that the present disclosure is to be considered as an exemplification and is not intended to be limited to the embodiment(s) illustrated.

Referring now to the drawings and in particular toFIGS. 1-8, a weighted bag with a handle for weightlifting is shown generally at reference number10. The weighted bag10includes an outer shell12and handle assembly14. The handle assembly14is coupled to the outer shell12by two or more points along the weighted bag10, such as by a strap assembly70as described herein. The weighted bag10as shown inFIGS. 1-8is configured for weightlifting and similar exercises, and can be lifted, carried, thrown, dropped, and otherwise used to enhance strength, agility and the like.

The outer shell12, shown inFIGS. 1-8, comprises one or more panels20that are connected by one or more seams22, an opening24with a shell closure member26. Each of the panels20has an inner surface31defining an inner cavity21configured to hold a filler material16and an outer surface32opposite the inner surface31. The shell12has a top38and a bottom39, such that the opening24is positioned on the top38, and the bag10is configured to rest on the bottom39. It is understood that the top38and the bottom39are relative terms that depend on the orientation of the bag10.

It is to be understood the inner surface31and outer surface32of the panels20may be defined by one or more surfacing layers that may be of substantially equal or variable materials. Generally, these are two or greater ply configuration coupled together. In the configuration shown, the panels are shown as singular pieces with the understanding that they may represent multiple plies of material. In one embodiment, the panels20are formed from a two ply construction, with the outer and inner plies comprising different grades of ballistic nylon fabric (the outside being of 1000 denier and the inside being of 500 denier). Of course, other configurations are contemplated.

With reference to the example embodiment of the outer shell12inFIGS. 1-8, the panels20include at least two opposed end panels50and central body panel58. Each end panel50has an outer panel51, an inner panel52, and slot57defined between the inner and outer panels51,52. The outer panel51is coupled to the inner panel52by any number of different structures, but not limited to, cross-stitching, heat sealing, adhesive, among others. Each slot57in this embodiment, as shown inFIGS. 6-8, extends between the outer and inner panels51,52and has upper and lower openings53to permit passage into and out of the slot57, and the slot57extends continuously between the openings53. In one embodiment, as shown inFIGS. 1-5, the outer and inner panels51,52are connected together around the exteriors of the panels51,52, and in other embodiments, the panels51,52may have inner walls, seams, adhesives, heat sealing, or other structures that define a slot57that is narrower than the widths of the panels51,52. In the embodiment ofFIGS. 1-8, the end panels50are substantially parallel with each other, and the central body panel58extends between the end panels50. The shell12in the embodiment ofFIGS. 1-8is entirely or substantially defined by the end panels50and the central body panel58. In this embodiment, the shell12defines a cylindrical configuration, having a circular cylindrical portion or central body portion54formed by the central body panel58and circular flat or bulged ends55formed by the end panels50. In other embodiments, the shell12may have a different shape, such as an oval cylinder, a cube, a rectangular cylinder, a triangular cylinder, etc. It is understood that the cylindrical portion54may simply be referred to as a “central body portion” when describing a shell12having a cylindrical shape or any other shape. Likewise, the relative sizes and shapes of the end panels50and the central body panel58may be different in other embodiments, and the cylindrical portion54and/or the ends55may be formed of a greater of smaller number of panels in other embodiments. In general, the cylindrical portion54and the ends55may each be formed by one or more panels22.

In the embodiment ofFIGS. 1-8, the bag10has an opening24and a filling mechanism25that is accessible through the opening24for filling the bag10. The opening24in the embodiment ofFIGS. 1-8is placed along the central body panel58in such a manner that it allows entry to the inner cavity21of the bag10. The opening24shown inFIGS. 1 and 5is oriented along the length of central body panel58at the top of the bag10, but the opening24may be oriented and/or located differently in other embodiments. The opening24includes a closure member26(also called a shell closure member) configured for releasably closing the opening24. When engaged, the shell closure member26resists the movement of filler material16into or out of the opening24. In the configuration shown, the opening24and the shell closure member26are positioned directly below the natural position of the handle60, which can reduce the stresses that are placed in the region surrounding the opening.

As shown inFIGS. 1 and 5-8, the opening24is defined by first side edge140, second side edge142, first end144, and second end146which collectively define the perimeter of the opening. The first side edge140and second side edge142are opposite and substantially parallel to each other and separated by the width of the opening24. Further, the first end144and second end146are opposite to each other and separated by the length of the opening24. The first side edge140and second side edge142are connected at their respective ends by first end144and second end146. The first and second ends144,146may be formed as V-shaped or U-shaped structures in one embodiment or may be straight linear sides that are substantially parallel to each other and perpendicular to the side edges140,142in another embodiment. Generally, the opening24has an elongated rectangular configuration in the embodiment ofFIGS. 1-8, and the opening24may have a differently-shaped configuration in other embodiments.

The shell closure member26is substantially planar to the opening24and coupled in such a way to edges of opening24that closure of the shell closure member26substantially closes the opening24. The shell closure member26, in the configuration ofFIGS. 1-8, includes a zipper. In this configuration, the dimensions of the opening24are similar to the size of the shell closure member26. In other words, the lengths of the edges of the shell closure member26are substantially parallel and comparable to the first side edge140and second side edge142of the opening24. In contemplated configurations, the shell closure member26is secured in a manner that ensures close coupling along the entire edges140,142of the opening24. In other embodiments, the shell closure member26may have other configurations, such as a hook and loop fastener, snaps, buttons, flaps, and other fastening and/or closing structures or combinations of such structures may be utilized. It is understood that the configuration of the shell closure member26may depend at least partially on the configuration of the opening24. For example, a shell closure member26in the form of a zipper may not be usable or optimal with some opening24configurations, and another type of closure member26may be used.

In the embodiment ofFIGS. 1-8, the filling mechanism25includes a funnel structure27having a flexible encircling wall160forming a funnel shape, a grasping handle or grasping member168, a filling mechanism closure member170, and securing member176. With particular reference toFIGS. 6-8, the flexible encircling wall160has a proximal end161, a distal end162, a lower exit164, and an upper inlet166. The proximal end161and distal end162are on opposite ends of the funnel27, and the proximal end161is a fixed end connected to the shell12, while the distal end162is a free end that can be extended out of the shell12through the opening24or retracted into the shell12.

The proximal end161is connected to the inner surface130of the outer shell12, as shown inFIGS. 6-8, and the connection between the proximal end161and the shell12forms a lower perimeter of the funnel27. In the configuration ofFIGS. 6-8, the proximal end161of the funnel27is secured to the inner surface of the shell12around the entire opening24, along a connection line spaced from the opening24. This configuration resists leakage of the filler material16through the connection between the proximal end161and the shell12and also provides a pocket17inside the opening24where the funnel27can be placed after collapsing, e.g., by folding or rolling, as described herein. The distal end162, when fully extended and expanded, forms an upper perimeter of the funnel, and it is understood that the upper perimeter may be larger than the lower perimeter in one embodiment. Further, the funnel27may have a neck or narrowest portion163that is located between the proximal and distal ends161,162and has a perimeter and a maximum width that are smaller than the perimeters and maximum widths at the proximal and distal ends161,162. In the embodiment shown inFIGS. 6-8, the neck163is located closer to the proximal end161than the distal end162and is configured to be generally located within the opening24when the funnel27is fully extended and expanded. It is to be understood the actual circumference or width at some locations are subject to change in shape, size and/or width during operation, articulation and folding of the funnel27, and that the relative circumferences and widths described herein are the maximum such dimensions when the funnel27is fully extended and expanded. The wall160inFIGS. 6-8, including the lower exit164and the upper inlet166, may be substantially oval or rectangular in shape in one embodiment, but these components are subject to variable changes in length and width in contemplated configurations and desired sizes of the weighted bag10. It is to be understood the openings (exit164and inlet166) are substantially large enough to allow entry of physical materials, such as sand or polymer beads, with minimal interference or resistance from the filling mechanisms25.

The funnel27may have one or more grasping handles168at or near the distal end162to assist in pulling the funnel27through the opening24and/or opening the funnel closure170as described herein. The funnel27inFIGS. 6-8has two grasping handles168on opposite sides of the inlet166, with each grasping handle168in the form of a thin strap connected to the exterior of the wall160of the funnel27. The grasping handles168are oriented to extend outwardly from the distal end162when the funnel27is in an open and extended position. Placement of the grasping handle168on the funnel is variable and subject to change in contemplated configurations of the funnel27. The grasping handle168may be connected to the wall160by stitching, adhesive, or heat sealing, among other techniques, or a combination of such techniques.

The funnel27also has a funnel closure170configured to close the inlet166to resist egress of the particulate material16. In the embodiment ofFIGS. 6-8, the funnel closure170includes a first engaging portion172and second engaging portion174positioned on opposite sides165,167of the wall160at the inlet166proximate the distal end162and configured to engage each other to releasably close the inlet166. The first engaging portion172and second engaging portion174include elongated strips of complementary hook and loop materials that releasably connect to each other when engaged. The engaging portions172,174, when engaged, seal the sides165,167to each other to close the upper inlet166and resist the entry or exit of material through the upper inlet166. In the embodiment ofFIGS. 6-8, the strips forming the first and second engaging portions172,174extend equal distances along the entirety of both sides of the inlet166to completely close the inlet166when engaged. In other embodiments, other releasable connecting or fastening structures can be used as the funnel closure170, such as snaps, buttons, zippers, and the like, as well as complementary structures when appropriate, or combinations of different structures.

The funnel27also includes a funnel securing structure176configured to secure and further resist ingress or egress of material through the funnel27. The funnel securing structure176inFIGS. 6-8includes a first securing member177and a second securing member178that are configured to engage each other to releasably close the inlet166. The funnel securing structure176inFIGS. 6-8is lower on the flexible encircling wall160than the funnel closure170. The securing members177,178in this embodiment are connected to the outer surface of the flexible encircling wall160on opposite sides165,167of the wall160at different distances from the distal end162. The first securing member177is connected to the first side165closer to the distal end162, and the second securing member178is connected to the second side167farther from the distal end162. In this configuration, the wall160is configured to be rolled or folded by rolling or folding the first side165over the second side167as shown inFIG. 8to achieve engagement of the securing members177,178to releasably retain the funnel27in the rolled or folded position. The securing members177,178include elongated strips of complementary hook and loop materials that releasably connect to each other when engaged. The size and positioning of the securing members177,178may be different in other embodiments. Additionally, the securing structure176may have a different configuration in other embodiments, such as any configuration of the funnel closure170discussed herein.

The inner cavity21of the outer shell12has filler material16within it when the device is prepared for use. Filler material16is designed to be a heavy but loose and flowable material including, but not limited to, sand, polymer beads, or other such particulate materials. In the embodiment ofFIGS. 1-8, the bag10has an inner bag135connected around the opening24to contain the filler material16, with seams (not shown) that define the shape of the inner bag135and/or connect pieces forming the inner bag135. The inner bag135has an open end136that is connected to the shell12around the opening24such that the inner bag135is in communication with the exit164of the funnel27. In this configuration, filler16fed into the inner cavity21through the filling mechanism25enters the inner bag135and is held by the inner bag135. The inner bag135and the shell12may be designed differently in materials, connections (e.g., seams22), and structure. For example, the materials, connections, and structure of the shell12may be configured for strength, durability, abrasion resistance, and comfort in handling, while the materials, connections, and structure of the inner bag135may be configured primarily for strength and resisting leakage.

The bag10can be filled by opening the shell closure member26to open the opening24and extending the filling mechanism25through the opening24. The funnel27inFIGS. 6-8can be fully extended by pulling the funnel27through the opening, disconnecting the securing structure176, and then fully extending the funnel27. When fully extended, the funnel27can be opened by disconnecting the closure170to open the inlet166, which may be done with the assistance of the grasping handles168. It is noted that the grasping handles may also be used to hold the upper inlet166open during filling. Once open, the filler material16can be filled into the cavity21(and the inner bag135if present) by entering through the upper inlet166, travelling through the funnel27, and exiting into the bag10through the lower exit164.

After the desired amount of filler material16has been fed into the inner cavity21of the weighted bag10, the closure170of the filling mechanism25is manipulated to close the inlet166. In the embodiment ofFIGS. 6-8, the first and second engaging portions172,174are engaged with each other to close the inlet166of the funnel27. The filling mechanism25can also then be collapsed into the opening24, using the securing structure176to further secure the collapsed filling mechanism25. In the embodiment ofFIGS. 6-8, the funnel27is collapsed by rolling or folding the top of the flexible encircling wall160at such amounts and to such a degree to cause the securing members177,178to engage with each other and secure the funnel27in a collapsed position. The filling mechanism25can then be pushed through opening24and into the cavity21of the shell12, and the shell closure member26is then manipulated to close the opening24. In this collapsed configuration, the funnel27is received within a pocket17defined below the opening24between the proximal end161of the funnel27and the inner surface31of the shell12. The resultant configuration of the filling mechanism25is sealed against ingress and egress of material in multiple ways, including by the shell closure member26, the filling mechanism closure170, and the folding or rolling of the filling mechanism25(secured by the securing structure176), which creates a tortuous path for the filling material16to escape.

The handle assembly14of the bag10inFIGS. 1-8includes a handle60and a strap assembly70including one or more straps connecting the handle60to the shell12to permit the bag10to be lifted by grasping the handle60. In one embodiment where the shell12has a cylindrical shape, such as shown inFIGS. 1-8, the strap assembly70includes at least one circumferential strap71that extends partially or completely around the circumference of the cylindrical portion54of the shell12. The strap assembly70inFIGS. 1-8includes first and second circumferential or peripheral straps71extending around at least a portion of the periphery of the shell12, and a central or transverse strap80extending around at least a portion of the periphery of the shell12transverse to the circumferential straps71. The circumferential straps71as shown inFIGS. 1-5extend parallel to each other around the cylindrical portion54of the shell12, with the two circumferential straps71each located proximate one of the ends55, and the central strap80extends around the cylindrical portion54and the circular ends55of the shell12perpendicular or transverse to both circumferential straps71. It is noted that the term “circumferential” is used herein with respect to a circular cylindrical structure as shown inFIGS. 1-8, but that the term “peripheral” may be used to describe these straps for use with a structure that is not necessarily circular. The terms “circumferential” and “peripheral” as used herein are not intended to imply that the relevant strap necessarily extends around the entire circumference or periphery of the bag10, but only specify the direction in which the strap extends, i.e., around the circumference or periphery.

In the embodiment ofFIGS. 1-5, the first and second circumferential straps71extend from opposite ends66of the handle60circumferentially around the periphery of the cylindrical portion54, around the bottom39of the shell12, and back toward the top38of the shell12to engage the handle60. The first circumferential strap71in this embodiment includes a first strap portion74that engages the handle60at one end66and extends in a first circumferential direction around a portion of the cylindrical portion54of the shell12and a second strap portion75that engages the handle60at one end66and extends in a second, opposite circumferential direction around a portion of the cylindrical portion54of the shell12. The strap portions74,75of the first circumferential strap71are joined together at a joint76on the bottom39of the shell12to form a single strap71. In other embodiments, the strap portions74,75may be parts of a single, integral or continuous strap71, or may not connect together, e.g., such as by connecting to the shell12. The second circumferential strap71inFIGS. 1-5is similarly configured, including a first strap portion77that engages the handle60at one end66and extends in a first circumferential direction around a portion of the cylindrical portion54of the shell12and a second strap portion78that engages the handle60at one end66and extends in a second, opposite circumferential direction around a portion of the cylindrical portion54of the shell12. The strap portions77,78of the second circumferential strap71are joined together at a joint79on the bottom39of the shell12to form a single strap71. In other embodiments, the strap portions77,78may be parts of a single, integral or continuous strap71, or may not connect together, e.g., such as by connecting to the shell12. The joints76,79are formed by a combination of stitching and adhesives in one embodiment, but may be formed by additional connecting structures and techniques described herein, or combinations thereof.

In the embodiment ofFIGS. 1-5, the first strap portions74,77of the first and second circumferential straps71are formed as an integral or continuous strap72that extends from the joint76into and through the handle60and to the other joint79, and the second strap portions75,78of the first and second circumferential straps71are similarly formed as an integral or continuous strap73. In this embodiment, the first and second circumferential straps are all formed as part of a continuous strap, connected by the joints76,79. It is understood that a “continuous” strap as used herein refers to a strap that functions or operates as a single piece (which may have joints or other junctures within), while an “integral” strap as used herein refers to a strap that is formed of a single, integral piece without joints, seams, etc. These straps72,73each extend circumferentially around the same side of the cylindrical portion54proximate opposite ends55in this embodiment, but it is understood that in another embodiment the straps72,73may cross each other within the handle60and extend on opposite sides. The strap portions74,75,77,78in this embodiment engage the handle60at least by extending through the handle60, and may be fixedly connected to the handle60, or the handle60may be able to slide with respect to the strap portions74,75,77,78. In other embodiments, the strap portions74,75,76,77may be separate pieces that are separately engaged with the handle60, or each circumferential strap71may itself be formed as a single piece engaged with the handle60. In a further embodiment, both of the circumferential straps71may be formed by a single-piece strap that extends twice through the handle60and around both ends of the cylindrical portion54of the shell12. It is understood that the engagement between the strap portions74,75,77,78and the handle60and the shell12is sufficient that the shell12can be lifted by exerting an upward force on the handle60.

In the embodiment ofFIGS. 1-5, the circumferential straps71are connected to or engaged with the shell12in a slidable configuration by retaining structures28in the form of loop assemblies or belt loop assemblies, rather than being fixedly connected to the shell12. It is understood that the retaining structures28may be referred to as loop assemblies28in discussing the embodiment ofFIGS. 1-5herein, but that other retaining structures may be used to achieve similar functionality. In another embodiment, one or both of the circumferential straps71may be provided in the same or a similar configuration while being fixedly connected to the shell12, such as by stitching, adhesive, heat sealing, etc. The loop assemblies28inFIGS. 1-5are positioned around the cylindrical portion54of the shell12at or proximate to the opposed ends55, and may be referred to as a first end loop assembly28and a second end loop assembly28. In the embodiment ofFIGS. 1-5, the first end loop assembly28secures the first circumferential strap71to the shell12, and the second end loop assembly28secures the second circumferential strap71to the shell12. The loop assemblies28in this configuration extend in both circumferential directions around the cylindrical portion54of the shell12, from the top38to the bottom39of the shell12.

The shell12inFIGS. 1-5also has circumferential supports30that are fixedly connected to the shell12(e.g., to the central body panel58) circumferentially around the cylindrical portion54proximate the ends55and extend beneath the loop assemblies28. The circumferential supports30in the embodiment ofFIGS. 1-5are connected to the shell12around the entire circumference of the shell12and across the entire width of each support30, except for the locations where the circumferential supports30cross the opening24and the closure26, where the circumferential supports30are connected only around the outer edge (the junctures with the end panels50). The circumferential supports30may be made from woven nylon or other durable fabric material and may be connected to the shell12by stitching and adhesives in one embodiment, but may be differently configured in other embodiments.

The loop assemblies28in the embodiment ofFIGS. 1-5each include a plurality of cross supports33that define a channel35beneath the cross supports33, such that the cross supports33extend across the channel35. The cross supports33inFIGS. 1-5are arranged in an alternating or oscillating pattern, where each cross support33is oriented at an oblique angle to the circumferential direction, the longitudinal direction (i.e., between the ends55), the channels35, the circumferential straps71, and the seams22around the end panels50(e.g., a “zig-zag” pattern). In this configuration, adjacent cross supports33have triangular gaps37between them to expose portions of the circumferential straps71beneath. In one configuration, the end of each cross support33overlaps with the end(s) of the adjacent cross support(s)33as shown inFIGS. 1-5, and these overlapping portions of the cross supports33are stitched together at the points of connection between the cross supports33and the shell12. These points of connection may be formed by continuous circumferential seams29that are spaced from each other, parallel to each other, and located on opposite sides of the respective channel35, as shown inFIGS. 1-5. In one embodiment, the cross supports33form angles of 55-60° or 50-65° with the edges of the circumferential supports and/or the circumferential direction, and adjacent cross supports33are oriented at angles of 60-70° with each other, although other angular orientations may be used in other embodiments.

Each channel35in the embodiment ofFIGS. 1-5is defined by a single strip of material that is folded over itself to form an overlapping, alternating pattern and stitched at and around the folds to the shell12to form the cross supports33. In another embodiment, the cross supports33defining each channel35may be separate pieces that are connected together. The cross supports33in the embodiment ofFIGS. 1-5are connected directly to the circumferential supports30, but this configuration may vary. In this configuration, the circumferential straps71are slidably restrained between the loop assemblies28and the circumferential supports30, and the circumferential supports30provide strength, durability, and abrasion resistance at these areas. The channels35are defined between the undersides of the cross supports33and the confronting surface of the shell12, which may include the circumferential supports30as in the embodiment ofFIGS. 1-5, or the outer surface32of the shell12or other structures in other configurations. Additionally, in one embodiment, the cross supports33are connected to the circumferential supports30, and both such structures are connected to the shell12, by two parallel, spaced circumferential seams29. In the embodiment ofFIGS. 1-8, one of such circumferential seams29also forms the connection between the outer and inner end panels51,52and the center body panel58. In another embodiment, where a circumferential support30or other support layer is not present, the cross supports33may be directly connected to the shell12along such circumferential seams29.

The channels35of each of the loop assemblies28inFIGS. 1-5include an entrance region34at or near the top38of the bag10, and an exit region36at or near the bottom39of the bag10. In this configuration, the circumferential straps71extend through the channels35, such that each of the strap portions74,75,77,78extends into the entrance region34of one of the channels35, through the respective channel35, and out the exit region36of the channel35. The joints76,79of the circumferential straps71are located in the spaces between the exit regions36of the two channels35of the respective loop assembly28. In another embodiment, the retaining structures28may not be in the form of loop assemblies with cross supports33, and may instead use solid or porous panels to create the channels35, similar to the slots57, or may use a different structure for retaining the circumferential straps71. It is understood that the retaining structures or loop assemblies28and associated structures such as the circumferential supports30are not illustrated inFIGS. 6-8for simplification purposes.

The strapping assembly70also includes a central strap or transverse strap80that extends in a peripheral direction from the handle60around both ends55of the shell12. The central strap80includes first and second central strap portions81,82that are engaged with the handle60and extend from the ends66of the handle60around opposite ends55of the shell12, and the strap portions81,82of the central strap80are joined together at a joint83on the bottom39of the shell12to form a single strap80. In the embodiment ofFIGS. 1-8, the central strap80is formed as a single piece, extending through the handle60to form the strap portions81,82on opposite sides of the handle60and having two ends that meet at the joint83. In another embodiment, the central strap portions81,82may be separate pieces that are separately engaged with the handle60. The joint83is formed by a combination of stitching and adhesives in one embodiment, but may be formed by additional connecting structures and techniques described herein, or combinations thereof. In another embodiment, the central strap portions81,82may not connect to each other, and may instead be connected to the shell12on the ends55or on the bottom39. It is understood that the engagement between the strap portions81,82and the handle60and the shell12is sufficient that the shell12can be lifted by exerting an upward force on the handle60.

The portions81,82of the central strap80inFIGS. 1-8extend around the ends55of the shell12by extending through the slots57in the ends55. As shown inFIGS. 6-8, the central strap portions81,82extend between the outer and inner panels51,52and through the upper and lower openings53to pass into and out of the slot57. The central strap portions81,82further extend beneath the circumferential straps71and across the bottom39of the shell12in this embodiment. The central strap80is slidably received within the slots57and is not fixedly connected to the shell12in the embodiment ofFIGS. 1-8, but one or both of the central strap portions81,82may be fixedly connected to the shell12, e.g., within the slot57or on the bottom39of the shell12. In another embodiment, the strap portions81,82may extend around the ends55of the shell12by extending on the outsides of the outer panels51. The inner panels52and/or the slots57may be absent, or the slots57may be created by an external structure, in such a configuration.

The strap assembly70in the embodiment ofFIGS. 1-8assists with distribution of forces around the shell12, allowing the bag10to be handled roughly and even thrown into the air (e.g., 15 feet or more) and landing on the ground, while containing heavy filler material16(e.g., 50-100 pounds). The positions and orientations of the straps71,80distribute the forces of lifting and throwing by the handle60evenly around the shell12and avoid concentration of stresses that can result at seams, bonds, or other fixed connections. Additionally, the ability of the straps71,80to slide and move with respect to the shell12allows more even exertion of forces on the straps71,80and allows each strap71,80to compensate for forces exerted unevenly on other straps71,80. The configuration of the strap assembly70further improves durability of the straps71,80themselves and of the bag10as a whole, among other benefits.

The handle60in the embodiment ofFIGS. 1-8is formed as an elongated tubular body62having a circular cross section and a central bore or passage64extending between opposing ends66along the direction of elongation. The body62is also slightly curved or arcuate in this configuration, rising in the middle with respect to the ends66. In this embodiment, the handle60is oriented to extend longitudinally with respect to the shell12, i.e., between the ends55and parallel to the central axis of the cylindrical portion54. The outer surface of the body62of the handle60forms a grasping surface configured to be grasped by the user, and a coating, sleeve, or other structure applied to the body62to enhance gripping. The handle60may also have a coating, sleeve, or other structure applied to the inside of the central passage64to either increase or decrease grip or friction with respect to the straps72,73,80that extend through the central passage64. In one embodiment, the handle60and/or the body62thereof may be made from a flexible and resilient material, such as a PVC hose material or the like. In the embodiment ofFIGS. 1-8, the handle60is positioned above the outer shell12and the opening24. In other embodiments, the handle60may have a different structure or material construction, including different shapes including, but are not limited to, ovals, squares, rectangles, or other shapes. In another embodiment, the handle60may not have a central passage64, such as in an embodiment where the straps72,73,80are not continuous or where the handle60has other structures for engaging continuous straps72,73,80. In a further embodiment, the handle60may have structures for fixedly connecting to the straps71,80.

One embodiment of a method for assembly of a weighted bag10as shown inFIGS. 1-8may be performed using stitching, adhesives, heat sealing or pressing, or various other connection techniques to form seams and other connections between the various components. The loop assemblies28in this embodiment are constructed by folding four strips of material to form the cross supports33and fixedly connecting the cross supports33(e.g., by stitching, adhesives, heat sealing, etc.) along the edges of the circumferential supports30to create the alternating configuration of the cross supports33. The cross supports33are not connected along the middle of the circumferential supports30to define the channels35between the cross supports33and the circumferential supports30. The circumferential straps71and the central strap80are connected to the handle60, which is accomplished in the embodiment ofFIGS. 1-8by pulling and/or pushing the single-piece straps72,73,80through the central passage64of the handle60, such that the straps72,73,80extend from both ends66of the handle. The straps72,73,80may be connected together at one or more points within the handle60in one embodiment.

The funnel27is assembled by creating the encircling wall160, e.g., from a single piece of fabric wrapped and connected to itself to form a funnel structure. The engaging portions172,174and the securing members177,178are connected to the wall160in appropriate locations, in the form of complementary strips of hook and loop material, in the embodiment ofFIGS. 1-8. The grasping handles168may also be connected to the wall160at or proximate the inlet166, and in one embodiment, the grasping handles168are connected prior to the engaging portions172,174such that the engaging portions172,174overlay the grasping portions168.

The central body panel58is prepared by cutting the opening24through the central body panel58and the shell closure member26is connected to the opening24. The shell closure member26may be provided with a shroud or other cover to protect the shell closure member26and increase comfort if the shell closure member26is contacted by the user during use, including a moveable cover or a static cover, e.g., to cover rigid surfaces such as zipper teeth. The circumferential supports30and the loop assemblies28are then positioned over and connected to the outer surface32of the central body panel58along opposite edges of the central body panel58. The inner bag135is connected to the central body panel58by connecting the open end136around the opening24on the inner surface31. The inner bag135may be formed before connecting to the central body panel58, such as by connecting several panels of material together or using seams to form a single piece of material in the correct shape for the inner bag135. The funnel27is also connected to the central body panel58. by connecting the proximal end161of the wall160around the opening24on the inner surface31. In one embodiment, the funnel27and the inner bag135may be connected together to the central body panel58.

The shell12is then completed by connecting the end panels50to the central body panel58around the seams22shaped to form the cylindrical portion54with circular ends55. In one embodiment, the inner panels52and the outer panels51are connected to the central body panel58with the same seam22or connection, and in another embodiment, the inner panels52are connected before the outer panels51. The inner panels52are connected around their entire perimeters in this configuration, and the outer panels51are connected around the majority of the perimeters, but are not connected in strategic areas to form the slots57. It is understand that a cover or lining may be applied around the openings53of each slot57for durability and abrasion resistance. The handle assembly14is then coupled to the shell12by extending the circumferential strap portions74,75,77,78through the channels35and joining them at the joints76,79to form the circumferential straps71, and extending the central strap portions81,82through the slots57, and then joining them at the joint83to form the central strap80. The bag10ofFIGS. 1-8is substantially complete after these steps have been accomplished.

FIGS. 9-11illustrate another embodiment of a weighted bag210that includes many components and features in common with the bag10illustrated inFIGS. 1-8and described herein. Such common features and components are referenced inFIGS. 9-11with the same reference numbers used herein with respect toFIGS. 1-8, and such common features and components may not be re-described herein in detail with respect to the embodiment ofFIGS. 9-11. While not illustrated in the drawings, the bag210ofFIGS. 9-11includes a filling mechanism25that is the same or similar to the filling mechanism25described herein and shown inFIGS. 6-8, in one embodiment. The filling mechanism25in this embodiment includes a funnel27having all the structural elements described herein with respect to the funnel27ofFIGS. 6-8and functioning in the same manner, but may include additional or alternate features as described herein in other embodiments. For example, the bag210inFIGS. 9-11has a funnel27having a flexible encircling wall160with a proximal end161connected to the inner surface31of the shell12around the opening24and a distal end162that can be pulled through the opening24to extend the funnel27for filling. The wall160of the funnel27in this embodiment defines an inlet166proximate the distal end162and an exit164into the shell12, and the funnel27also has a funnel closure170includes a first engaging portion172and second engaging portion174positioned on opposite sides165,167of the wall160at the inlet166and securing members176as shown inFIGS. 6-8and described herein. The bag210inFIGS. 9-11also has an inner bag135, as shown inFIGS. 6-8and described herein, which is also not illustrated inFIGS. 9-11. It is understood that the inner bag135in the embodiment ofFIGS. 9-11is shaped to be consistent with the shape of the shell12of the bag210.

The shell12of the bag210inFIGS. 9-11has a frusto-conical or tapered shape, and may be formed by multiple panels20connected by seams22as described herein. In this embodiment, the shell12defines a tapered configuration, having a central body portion212formed by a central body panel214and circular flat or bulged ends216,217formed by end panels218,219. The central body portion212inFIGS. 9-11is formed as a tapered portion and has a frusto-conical shape that has a smaller width, perimeter (e.g., circumference), and cross-sectional area (relative to the central axis of the shell12) at the bottom38and a larger width, perimeter, and cross-sectional area at the top39, and the central body panel214is formed to create this shape. The central body portion212has a continuous linear taper between the ends216,217when viewed from the side or in cross-section in the embodiment ofFIGS. 9-11. The contour and taper of the central body portion212may be different in other embodiments, for example, a concavely curved taper creating a funnel shape, or a convexly curved taper, or a non-continuous linear taper. Additionally, in another embodiment, the central body portion212may not be tapered the entire distance between the ends216,217, i.e., the tapered portion may be a smaller portion of the central body portion212. In such a configuration, the central body portion212may have a non-tapered portion or a reverse-tapered portion adjacent the tapered portion.

The ends216,217of the shell12in the embodiment ofFIGS. 9-11are circular in shape, and the end panels218,219forming the ends216are circular panels that may be bulged or flat. The top end216and the top end panel218have larger widths, perimeters (e.g., circumferences) and surface areas than the bottom end217and the bottom end panel219, which complements the taper of the central body portion212. In one embodiment, the top end216may have a width of 12-20 in., or 14-18 in., the bottom end217may have a width of 6-14 in., or 8-12 in., and the height of the central body portion212may be 19-25 in., or 20-24.5 in. In another embodiment, the bag210may be larger or smaller, but the ends216,217may have similar proportions, i.e., the ratio of the width of the top end216to the width of the bottom end217is 1.25:1-2:1 or 1.5:1-1.75:1. In such embodiments, the ratio of the area of the top end216to the area of the bottom end217is 1.5:1-4:1 or 2.25:1-3:1 In a shell12where the central body portion212has a continuous linear taper, the taper angle T of the central body portion212in such a configuration is 6-10°, or 7-9°, with respect to the vertical direction and/or central axis of the shell12. It is understood that the central axis is an axis that passes through the center of volume of the shell12when fully expanded and passes through the geometric center of the top and bottom ends216,217, which may be an axis of symmetry in a symmetrical structure. The bag210inFIGS. 9-11is configured for lifting by the user holding the bag210against his/her chest and wrapping his/her arms around the central body portion212, and the tapering of the central body portion212produces a shape that is advantageous for such usage, by aiding the user in holding the bag210without downward slippage due to the weight of the bag210.

The bag210has an opening24on the top38of the shell12, which is formed by an opening along the centerline of the top end panel218in the embodiment ofFIGS. 9-11. The opening24is provided with a closure mechanism26in the form of a zipper in this embodiment. It is understood that the opening24and the closure mechanism26may have any structure discussed herein with respect to the opening24and the closure mechanism26ofFIGS. 1-8. The opening24and the closure mechanism26in this embodiment function in the same way as in the bag10ofFIGS. 1-8, whereby the closure mechanism26opens to allow the funnel27to be extended for filling the bag210, and the closure mechanism26can be closed after collapsing the funnel27to seal the opening24. The closure mechanism26inFIGS. 9-11has a moveable cover220that can be moved to cover the opening24as shown inFIG. 9, or to uncover the opening24as shown inFIG. 10. The cover220inFIGS. 9-11is in the form of a flap that is anchored at a proximal end221and has a free distal end222that can be folded to cover or uncover the opening24as desired. Additionally, the bag210in this embodiment has a releasable connecting structure223configured for retaining the cover220to the top38of the shell12to cover the opening24, including complementary engaging members224,225in the form of strips of hook and loop material. The releasable connecting structure223illustrated inFIG. 10includes engaging members224in the form of two strips of hook and loop material connected to the top end panel218along opposite sides of the opening24and another one or more engaging members225in the form of a complementary strip of hook and loop material connected to the underside of the cover220.

The bag210may be made using the same materials and techniques described herein with respect to the embodiment ofFIGS. 1-8. In particular, the shell12, the inner bag135, and the filling mechanism25can be assembled in a similar manner as the same components inFIGS. 1-8. Assembly of the bag210inFIGS. 9-11further includes connecting the engaging members224to the top end panel218around the opening24and connecting the engaging member225to the underside of the cover220, and then connecting the cover220to the shell12, using any of the connection structures and techniques described herein, including stitching, adhesives, and heat sealing, among others.

FIGS. 12-18illustrate another embodiment of a weighted bag310that includes many components and features in common with the bag10illustrated inFIGS. 1-8and the bag210illustrated inFIGS. 9-11and described herein. Such common features and components are referenced inFIGS. 12-18with the same reference numbers used herein with respect toFIGS. 1-11, and such common features and components may not be re-described herein in detail with respect to the embodiment ofFIGS. 12-18. While not illustrated in the drawings, the bag310ofFIGS. 12-18includes a filling mechanism25that is the same or similar to the filling mechanism25described herein and shown inFIGS. 6-8, in one embodiment. The filling mechanism25in this embodiment includes a funnel27having all the structural elements described herein with respect to the funnel27ofFIGS. 6-8and functioning in the same manner, but may include additional or alternate features as described herein in other embodiments. For example, the bag310inFIGS. 12-18has a funnel27having a flexible encircling wall160with a proximal end161connected to the inner surface31of the shell12around the opening24and a distal end162that can be pulled through the opening24to extend the funnel27for filling. The wall160of the funnel27in this embodiment defines an inlet166proximate the distal end162and an exit164into the shell12, and the funnel27also has a funnel closure170includes a first engaging portion172and second engaging portion174positioned on opposite sides165,167of the wall160at the inlet166and securing members176as shown inFIGS. 6-8and described herein. The bag310inFIGS. 12-18also has an inner bag135, as shown inFIGS. 6-8and described herein, which is also not illustrated inFIGS. 12-18. It is understood that the inner bag135in the embodiment ofFIGS. 12-18is shaped to be consistent with the shape of the shell12of the bag210.

The shell12of the bag310inFIGS. 12-18has a rectangular shape from the front and the rear and an oval shape (when filled) from the sides. In this embodiment, the shell12defines a rectangular configuration that is elongated between two opposed ends315. The shell12has a central body portion312formed by a single panel314that is wrapped around a top316and a bottom318of the central body portion312and is connected to itself along end seams313at opposed ends315and along a lateral seam317extending between the ends315on the rear side319of the shell12. The rear seam317extends across the rear side parallel to the lateral centerline L of the shell12(seeFIG. 13) and below the lateral centerline L, i.e., between the lateral centerline L and the bottom318. The shell12of the bag310inFIGS. 12-18is elongated between the ends315to form the rectangular shape having four corners324. When the bag310is filled with the filling material16, the corners324retain semi-pointed shapes, while the top316and bottom318become rounded to create the oval shape of the filled shell12. In this configuration, the top316and bottom318may develop a slight outward curvature toward the corners324and a more flattened shape near the lateral centerline of the bag310. The shell12may have a different shape in other embodiments, and/or the shell12may be made from multiple panels in other embodiments.

The bag310has an opening24on the front320of the shell12, which is formed by an opening through the panel314along the centerline of the front320in the embodiment ofFIGS. 12-18. The opening24is provided with a closure mechanism26in the form of a zipper in this embodiment. It is understood that the opening24and the closure mechanism26may have any structure discussed herein with respect to the opening24and the closure mechanism26ofFIGS. 1-8. The opening24and the closure mechanism26in this embodiment function in the same way as in the bag10ofFIGS. 1-8, whereby the closure mechanism26opens to allow the funnel27to be extended for filling the bag310, and the closure mechanism26can be closed after collapsing the funnel27to seal the opening24. The closure mechanism26inFIGS. 12-18has a fixed cover325that covers one end of the opening24as shown inFIG. 14. The cover325is positioned so that the handle326of the zipper of the closure mechanism26can be positioned beneath the cover325when the closure mechanism26is in the closed position, in order to avoid the zipper handle326from pressing into the user's skin during use, enhancing comfort. The cover325inFIG. 14is in the form of an arch that is anchored at the ends and arches over the end of the opening24.

In one embodiment, the bag310has two handles321connected to the shell12near the junctures between the top316and the ends315, i.e., the corners324along the top316of the shell12in the rectangular shell12shown inFIGS. 12-18. The handles321in this embodiment each include a base322fixedly connected to the shell12and a gripping member323extending outward from the base322. The gripping members323are each formed as a loop for the user's hand to extend through in the embodiment ofFIGS. 12-18. In this embodiment, each of the gripping members323has ends that are connected to the front and rear sides320,319of the shell12with the gripping member323forming a loop configuration between these connections. In other embodiments, the gripping members323may be connected only to the front or rear side320,319of the shell12and still have a loop configuration, or the gripping members323may have a different configuration (e.g., a tethered handle). Additionally, the gripping members323in one embodiment extend outward at oblique angles A with the lateral centerline L of the shell12(seeFIG. 13) and oblique angles B with the nearest peripheral edges of the shell12. In one embodiment, the angles A are approximately 45° (40-50°) to the lateral centerline L, and the angles B are approximately 135° (125-145°) with the nearest peripheral edge, i.e., the top316or the nearest end315of the shell12in this embodiment. The angles B are measured with respect to the edges334of the gripping members323that are nearest the respective peripheral edge of the shell12. In other embodiments, the gripping members323may extend outward at angles A that are 30-60° to the lateral centerline L of the shell12), and the edges334of the gripping members323form angles B of approximately 120-150° with the nearest peripheral edge, i.e., the top316or the nearest end315of the shell12in such embodiments. It is understood that the angles A and B described herein are measured with respect to the gripping members323when extended to their furthest degree of extension in their most natural direction of extension, as shown inFIG. 13. It is also understood that the angle A measured with respect to the lateral centerline L can be measured with respect to either edge334or the geometric centerline GC of the gripping member323in an embodiment as inFIG. 13where the edges334and the geometric centerline GC are all parallel to each other, although in some less symmetrical configurations, the geometric centerline GC may be a more appropriate. In other words, the angle A can be measured with respect to at least one of the edges and/or the geometric centerline. It is further understood that the angles A and B are measured when the bag310is empty and pressed flat to the ground.

The bases322of the handles321are connected to the shell12proximate the top corners324, and the bases322inFIGS. 12-18extend on both the front side320and the rear side319of the shell12to permit the gripping members323to connect to both sides319,320. In the embodiment ofFIGS. 12-18, each base322is formed of a single strip of material that extends from the nearest end315at an angle across the front320of the shell12, over the top316of the shell12, and then at an angle across the rear319of the shell12back to the end315. In this configuration, the base322is not connected to the corner324, leaving the corner324exposed. The base322in this configuration has a crossing portion327that extends over the top316of the shell12, and the inner edge328of the crossing portion327(i.e., farthest edge inward from the nearest end315) inFIGS. 12-18extends approximately perpendicular (90°) to the top316of the shell12when the bag310is empty and pressed to the ground. In other words, the angle C between the inner edge328of the crossing portion327and the top316of the shell12is 80-100° or 85-95°. The inner edge328of the crossing portion327may additionally or alternately form the same or similar angles with respect to the lateral centerline L of the shell12and/or a line (not shown) extending directly between the top corners324on the shell12. This configuration is shown in greater detail inFIGS. 17-18. The inner edge328of the crossing portion327is a straight edge in the embodiment ofFIGS. 12-18, i.e., the inner edge328would be straight and linear if the base322were laid flat. Additionally, the base322inFIGS. 12-18has angling portions329that angle across the front and rear sides320,319of the shell and juncture with the crossing portion327, and the inner edge330of each angling portion329forms a juncture angle D with the crossing portion327that is 110-140° or 120-130°. The angle E at the juncture between the inner edge330of each angling portion329and the nearest end315of the shell12is 40-70° or 50-60°. It is understood that the angles C, D, and E are measured when the bag310is empty and pressed flat to the ground. The crossing portion327in the embodiment ofFIGS. 12-18has a narrower width measured between the inner edge328and the opposite (outer) edge that is smaller than the widths of the angling portions329.

The narrower width and the angles C and D in the embodiment ofFIGS. 12-18are created by folding the base322over itself toward the nearest end315of the shell12and connecting the folded portion333to the base322, as shown inFIG. 17. Each base322may be formed of an integral or continuous panel or strap having first and second opposed surfaces331,332, in one embodiment. In this configuration, the first surface331forms the outer surface of the angling portion329on the front side320of the shell12and the inner surface of the angling portion329(contacting the shell12) on the rear side319of the shell12, and the second surface332forms the outer surface of the angling portion329on the rear side319of the shell12and the inner surface of the angling portion329(contacting the shell12) on the front side320of the shell12.

The angles A-E described herein provide a more ergonomic and athletically efficient form for the bag, which is designed to be picked up by a user and thrown over his/her back for carrying so that the top316rests on the user's neck and shoulders. The angles A-B of the gripping members323provide effective and comfortable angles for lifting and carrying, and the angles C-E of the base322provide durability and advantageous distribution of forces and stresses on the shell12during lifting and carrying. As one particular example, the angle C between the inner edge328of the crossing portion327and the top316of the shell12avoids excessive concentration of stresses at the juncture between the base322and the top316of the shell12, which can result in separation of the base322from the shell12and/or ripping of the shell12at that location. It is also noted that the position of the rear seam317below the lateral centerline L of the shell12avoids stress concentrations at the seam317by distancing the seam317from the handles321and also reduces the chance that the user will carry the bag310with the seam317in contact with his/her neck or shoulders, which could reduce comfort.

The bag310may be made using the same materials and techniques described herein with respect to the embodiment ofFIGS. 1-8. In particular, the shell12, the inner bag135, and the filling mechanism25can be assembled in a similar manner as the same components inFIGS. 1-8. Assembly of the bag310inFIGS. 12-18further includes connecting the gripping members323to the bases322of the handles321, and then connecting the handles321to the top side316of the shell12, using any of the connection structures and techniques described herein, including stitching, adhesives, and heat sealing, among others.

Several alternative embodiments and examples have been described and illustrated herein. A person of ordinary skill in the art would appreciate the features of the individual embodiments, and the possible combinations and variations of the components. A person of ordinary skill in the art would further appreciate that any of the embodiments could be provided in any combination with the other embodiments disclosed herein. It is understood that the invention may be embodied in other specific forms without departing from the spirit or central characteristics thereof. The present examples and embodiments, therefore, are to be considered in all respects as illustrative and not restrictive, and the invention is not to be limited to the details given herein. The terms “top,” “bottom,” “front,” “back,” “side,” “rear,” “proximal,” “distal,” and the like, as used herein, are intended for illustrative and relative purposes only and do not limit the embodiments in any way. Nothing in this specification should be construed as requiring a specific three dimensional orientation of structures in order to fall within the scope of this invention, unless explicitly specified by the claims. Additionally, the term “plurality,” as used herein, indicates any number greater than one, either disjunctively or conjunctively, as necessary, up to an infinite number. For quantitative values described herein that do not include decimal points, each digit to the left of the decimal point is considered to be a significant digit. Accordingly, while the specific embodiments have been illustrated and described, numerous modifications come to mind without significantly departing from the spirit of the invention and the scope of protection is only limited by the scope of the accompanying claims.