A fold-out treadmill includes a deck having a rear portion mounted on a base so as to be selectively rotatable between an operational position in which the deck is positioned for operation by a user positioned thereon and a storage position in which the deck is positioned proximate to the handrail. The fold-out treadmill includes a fold-out assembly configured to allow the handrail to rotate into a storage configuration when the deck is rotated from the operational position into the storage position which comprises a leg and an elongated support. The fold-out treadmill includes a mechanism that is configured to vary the inclination of the deck relative to a support surface while the deck is in the operational position and to automatically move the deck between the operational position to the storage position.

BACKGROUND OF THE INVENTION

1. The Field of the Invention

The present invention relates to treadmills, and in particular to foldable treadmills.

2. The Relevant Technology

Treadmills are popular exercise machines that enable a user to engage in a running or walking movement while maintaining a relatively stationary position. A conventional treadmill includes two major sections: a base and a handrail. The base includes a frame having rollers mounted on opposing ends thereof. A continuous belt extends around and between the two rollers so as to be fashioned into a flat, continuous loop. In one design, an electrical motor is connected to the front roller. When the motor is turned on, the roller spins which imparts rotational movement to the belt. In an alternative design, no motor is provided. The continuous belt is rotated by the user standing on the belt and walking or running thereon. Friction between the user and the belt cause the belt to rotate in a continuous loop around the rollers.

The handrail acts as a support or stabilizer for the user. Conventional handrails project from the frame toward and across the front of the treadmill. Some alternative treadmills include moveable arms attached to the handrail. The movable arms enable the user to exercise their arms while running or walking on the treadmill.

A control console can also be mounted on the handrail. The control console is used to control the operation of the treadmill and to display related information such as elapsed time, speed, pulse, or calories burned. Controls for treadmill speed, inclination, or exercise program may also be part of the control console.

To use the treadmill, a user steps onto the continuous belt facing the front of the treadmill. The electric motor is then turned on causing the top surface of the belt to rotate from the front of the base to the rear of the base. To maintain a stationary position on the treadmill, the user must then walk or run at a speed corresponding to the speed of the belt. If desired, the user can grasp the handrail for support. When the user is done exercising, he or she simply turns the treadmill off and steps off the continuous belt.

Early treadmills tended to be bulky due to large motors and oversized parts. Such treadmills were difficult to move around and took up relatively large amounts of space. Accordingly, these early treadmills were almost exclusively found in spas and gyms having large amounts of floor space. As engineering improved, the size and weight of treadmills decreased. Nevertheless, the size of treadmills was limited by the length and width of the base which had to be large enough for a user to safely walk or run thereon. Due to this minimum size limitation, treadmills were significantly precluded from home or apartment use which did not have available space to house a treadmill.

In an attempt to remedy this problem, foldable treadmills were developed. Foldable treadmills include a base having rollers and a continuous belt as previously described. The front of the base, however, is hingedly attached to a stationary stand. Upstanding from the stationary stand is a handrail. The base can be selectively moved between an operational and storage position. In the operation position, the base is positioned for use by a user and is substantially parallel with the support surface. Many treadmills do, however, have the ability to change the position of the base relative to the support surface to simulate walking uphill. To use the treadmill, the user stands on the base facing the stationary stand and walks or runs thereon as discussed above. When use is completed, the base can be selectively moved to a storage position by lifting up the rear end of the base. The base is lifted to the storage position where it is in a substantially upright position with the front end of the base still rotatably connected to the stationary stand. By folding up the base, the treadmill takes up substantially less floor space making the treadmill more accessible for use in homes and apartments.

While foldable treadmills take up less space, they still have other drawbacks. For example, to minimize obstruction by the treadmill, it is desirable for the treadmill to be folded up against a wall, when not in use. The stationary stand must be positioned proximate to the wall to enable the base to fold out. With the treadmill positioned so that the stationary stand is closest to the wall a user is forced to face the wall during use of the treadmill. The user, however, typically prefers to look into the room, such as toward a television or other people, during use.

To enable a user to face into a room during use of a conventional foldable treadmill, the user must first rotate the stationary stand away from the wall, and then move the treadmill sufficiently far away from the wall so that the base does not hit the wall when the base is lowered into the operational position. When use is completed, the user must fold up the treadmill and move it back to the wall for storage. This required moving of the treadmill for each use is time consuming, annoying, and awkward. Further, treadmills are typically heavy and fairly large, making them physically difficult to move. Even those treadmills that are “portable” require a great deal of effort to move and reposition so that the user can face away from the wall. As a result, the frequency of use of the treadmill is decreased, thereby partially defeating the purpose of the treadmill.

Another problem with the existing folding treadmills is that the user must manually lift the deck into the storage position. While some types of folding treadmills have some type of a lift assistance assembly oil mechanism which helps a user lift the deck of the treadmill, the user must still manually lift the deck. It would be desirable to have a treadmill that was a folding treadmill but would not require the user to manually lift the deck of the treadmill from the operational position to the storage position.

BRIEF SUMMARY OF THE INVENTION

A foldable or fold-out treadmill is provided which comprises a handrail and a support structure that includes a deck and a stationary base. The deck has a front portion, a rear portion, and a continuous belt rotatably mounted thereon. The rear portion of the deck is moveably mounted on the base so as to enable the deck to be selectively rotated between an operational position in which the deck is positioned for operation by a user positioned thereon and a storage position in which the deck is positioned proximate to the handrail.

The treadmill also includes a handrail movingly attached to the support structure. The handrail has a second end and an opposing first end projecting above the front end of the deck when the deck is in the operational position. The handrail is further configured such that when the deck is moved between the operational position and the storage position the handrail rotates into a storage configuration.

The treadmill also includes a fold-out assembly that movably connects the second end of the handrail to the support structure so as to enable the first end of the handrail to project above the front portion of the deck when the deck is in the operational position and to rotate into a storage configuration when the deck is rotated into the storage position. The fold-out assembly is configured such that the handrail rotates into the storage configuration as the deck is selectively rotated from the storage position into the operational position. In one embodiment, the fold-out assembly comprises a leg and an elongated support. The leg has a proximal end attached to the handrail and a distal end rotatably connected to the base. The elongated support has one end movingly attached to the deck and the opposite end movingly coupled to the handrail. The elongated support and the leg are configured to allow the handrail to rotate into a storage configuration when the deck is rotated from the operational position into the storage position.

The fold-out treadmill also includes a mechanism configured to vary the inclination of the deck relative to a support surface while the deck is in the operational position. The mechanism comprises a motor that is movably attached to the base and a foot that is rotatably attached to the deck. The mechanism also includes an elongated member that has one end movably attached to the motor and an opposite end moveably connected to the foot.

In another embodiment, the fold-out treadmill includes a mechanism configured to automatically move the deck between the operational position to the storage position. The mechanism comprises a motor that is movably attached to the base and an elongated member that has one end movably attached to the motor and an opposite end moveably connected to the deck.

In another embodiment, the fold-out treadmill includes a mechanism that is configured to vary the inclination of the deck relative to a support surface while the deck is in the operational position and to automatically move the deck between the operational position to the storage position. The mechanism comprises a motor that is movably attached to the base and a foot that is rotatably attached to the deck. The mechanism also includes an elongated member that has one end movably attached to the motor and an opposite end moveably connected to the foot.

These and other features of the present invention will become more fully apparent from the following description and appended claims, or may be learned by the practice of the invention as set forth hereinafter.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The present invention relates to treadmills that are selectively foldable and enable a user to face into a room while exercising on the treadmill that is positioned substantially against a wall. Depicted inFIG. 1is one embodiment of a treadmill incorporating the features of the present invention. Treadmill10includes a deck12and a handrail16. Deck12is moveable between an operational position, where deck12is substantially flat or otherwise positioned for use by a person positioned thereon, and a storage position in which deck12is positioned proximate to handrail16. Handrail16projects above deck12when deck12is in the operational position and automatically collapses into substantial alignment with deck12when deck12is rotated into the storage position.

More specifically, fold-out treadmill10comprises a base14, deck12, and handrail16. Deck12has a back end30and a front end28. Back end30of deck12is hingedly mounted to base14. Together, deck12and base14form the support structure of treadmill10. One embodiment of treadmill10is illustrated inFIG. 1with deck12in an operational position. In the operational position, deck12extends outwardly from base14and is positioned for use by a user positioned thereon. In the operational position, deck12may be substantially level or somewhat inclined depending on the user's preference. Deck12also has a storage position in which deck12is positioned proximate to handrail16, as shown inFIG. 3. In one embodiment, when deck12is in the storage position, it is substantially upright. Deck12can be selectively rotated between the operational position and the storage position.

Referring toFIG. 1, deck12comprises a frame structure18that includes a left frame member20and a right frame member22. Left and right frame members20and22, respectively, are defined when deck12is in the operational position and the user is facing front end28of deck12. As shown inFIG. 1, left frame member20and right frame member22are generally aligned. Left frame member20and right frame member22each have a forward end24and a back end26.

In one embodiment illustrated inFIG. 1, deck12also comprises an optional front member32. Front end28of deck12is defined as the forward-most end of deck12when deck12is in the operational position. A user faces front end28of deck12when using treadmill10. Conversely, back end30of deck12is defined as the rear-most end of deck12proximate to base14. Back end30of deck12is rotatably connected to base14.

An optional front member32is attached to forward end24of both left frame member20and right frame member22at front end28of deck12. In one embodiment, left frame member20, right frame member22, and front member32form frame structure18of deck12. Left frame member20and right frame member22are in a longitudinal, spaced apart relationship while front member32is a cross member that extends laterally between forward end24of left frame member20and forward end24of right frame member22. Alternatively, frame structure18may comprise left frame member20and right frame member22.

Deck12has a continuous or endless belt34mounted on deck12. In particular, continuous belt34is positioned between left frame member20and right frame member22. Continuous belt34is configured to receive a user thereon to perform exercises, including walking, running, jogging and other similar or related activities. Treadmill10can also be used for stationary exercises, such as stretching or bending, while the user is standing on continuous belt34. The primary function, however, of treadmill10is for running, walking or jogging.

One embodiment of left frame member20and right frame member22of frame structure18comprises a side rail36and a side base38. As illustrated inFIG. 1, side base38is positioned over the top of side rail36of both left frame member20and right frame member22. Left frame member20is not totally visible inFIG. 1but is a mirror image of right frame member22. Side bases38of left frame member20and right frame member22are capable of supporting the weight of a user standing thereon. Side bases38are positioned on each side of continuous belt34.

The position of side bases38of both left frame member20and right frame member22are such that a user of treadmill10can comfortably and easily step off of continuous belt34onto one or both of side bases38. The user can also stand on side base38of either left frame member20or right frame member22or both until he or she is ready to step onto continuous belt34. In addition, side bases38are wide enough for the user to comfortably place his or her foot thereon. It can be appreciated that other embodiments of left frame member20and right frame member22or the components thereof are equally effective in carrying out the intended function thereof.

Treadmill10also comprises base14that is movably attached to back end30of deck12. One embodiment of base14, shown inFIG. 1, includes main body15and a pair of stabilizer members68. Stabilizer members68have a forward end70and a back end72. Back end72of each stabilizer member68is fixedly attached to main body15of base14near the periphery thereof and extends outwardly from main body15in a direction generally parallel with deck12when deck12is in the operational position.

Main body15of base14is positioned substantially directly behind endless belt34such that should the user roll backwards off of endless belt34, he or she will land on main body15of base14. Main body15has a low profile as will be discussed below that enables main body15to be slightly shorter in height than endless belt34when deck12is in the operational position. This helps to prevent the user from hitting base14while running or walking on treadmill10. Base14is also configured to rest on a support surface with its rear end abutting, or in close proximity to, a wall.

One embodiment of treadmill10includes a switching mechanism on base14that automatically turns off motor98when the user is on main body15and, consequently, prevents a user from being trapped on main body15after inadvertently landing on main body15while treadmill10continues to run.

In one embodiment, back end30of deck12is rotatably attached to base14by conventional methods. Specifically, back end26of both left frame member20and right frame member22is pivotally attached to base14, and base14extends laterally across back end26of both left frame member20and right frame member22. Various other embodiments of structure capable of performing the function of a means for connecting deck12to base14so as to enable deck12to selectively rotate between the operational position in which deck12is positioned for use by a user, and a storage position in which deck12is proximate to handrail16, are equally effective in performing the intended function thereof.

FIG. 1also shows one embodiment of handrail16that is movably attached to base14and deck12. One embodiment of handrail16is substantially U-shaped. When deck12is in the operational position handrail16is open at the rear-most portion and closed at the front-most portion. As shown inFIG. 1, handrail16extends across deck12at front end28of deck12when deck12is in the operational position. It can be appreciated that various other configurations of handrail16are equally effective in performing the intended function thereof.

Handrail16is configured to automatically collapse into substantial alignment with deck12when deck12is in the storage position, as shown inFIG. 3. As illustrated inFIG. 1, in one embodiment, handrail16has a first end48and a second end50. First end48of handrail16is attached to base14, and second end50of handrail16projects above front end28of deck12when deck12is in the operational position.

Referring again toFIG. 1, handrail16comprises a pair of uprights40. For clarity, the right side of handrail16is described, keeping in mind that the left side thereof, is the mirror image of the right side of handrail16. In one embodiment, uprights40are movably attached to base14and frame structure18of deck12. Uprights40have a lower end44movably attached to base14and deck12and an opposing upper end42projecting above front end28of deck12when deck12is in the operational position. Lower end44of upright40is movably attached to right frame member22of frame structure18. The specific attachment of upright40to right frame member22will be discussed in further detail below.

Handrail16also includes a pair of handles46that are fixedly attached to uprights40and extend outwardly from uprights40toward back end30of deck12. Handle46is attached to each upright40near upper end42thereof. It will be appreciated that the configuration of handles46may vary. Handles46must be capable of supporting the user of treadmill10. In addition, handles46must be comfortable for a user to grab or hold. Handles46are attached to uprights40by conventional methods such as screws, bolts, welds, or the like. In one embodiment illustrated inFIG. 1, handles46are bolted to uprights40.

Handrail16may comprise an optional control console54. Console54may be attached to upper end42of the pair of uprights40. Control console54provides the user interface for monitoring and controlling operation of treadmill10and may have operating controls such as an actuator switch to operate treadmill10and indicator means which may be operated by the user to determine various parameters associated with the exercise being performed. Console54may also include such things as a cup or glass holder so that the user may position a liquid refreshment for use during the course of performing the exercise. It can be appreciated that various embodiments of console54are possible and may be so simple as to include only an on/off switch. It is contemplated that console54may be completely replaced by a support member.

When deck12is in the operational position and handrail16is projecting above front end28of deck12, handrail16defines the sides of an exercise space therebetween. Handles46are designed and positioned such that they are near the hands of the user for easy and quick grasping should a user need handles46to maintain his or her balance when the user is exercising on continuous belt34, as well as making the user feel stable and secure while using treadmill10.

A pair of elongated supports56are movably attached to handrail16and deck12, as shown inFIG. 1. Elongated supports56have a first end58that is movably attached to upright40of handrail16and a second end60that is movably attached to frame structure18of deck12. As with handrail16, the right side and left side of treadmill10are mirror images and for clarity, only the right side will be discussed in detail. First end58of elongated support56is pivotally attached to upright40. Lower end60is pivotally attached to side rail36of right frame member20. Other methods of movably attaching first end58to upright40and second end60to side rail36are equally effective in carrying out the function thereof.

In one embodiment of treadmill10, lower end44of upright40of handrail16is movably attached to a leg62. As shown inFIG. 2A, leg62has a proximal end64that is movably attached to lower end44of upright40and a distal end66that is movably attached to forward end70of stabilizer member68. In the embodiment illustrated inFIG. 2A, distal end66of leg62is pivotally attached to forward end70of stabilizer member68. Other methods of movably attaching distal end66of leg62to forward end70of stabilizer member68are equally effective in carrying out the intended function thereof.

Treadmill10also has a slider assembly75that comprises an elongated slider bracket74and a wheel76. Elongated slider bracket74is fixedly attached to the exposed outside surface78of both left frame member20and right frame member22. Slider bracket74is attached to side rail36. Slider bracket74is capable of receiving wheel76rotatably attached to handrail16and allowing linear translation of lower end44of upright40of handrail16relative to deck12. Wheel76is configured to cooperate with slider bracket74and is disposed therein. Wheel76is movably attached to the inside of upright40of handrail16proximate to deck12near or at the point of attachment between lower end44of upright40and proximate end64of leg62. Elongated slider bracket74and wheel76illustrated inFIGS. 2A and 2Bare one embodiment of structure capable of performing the function of a slider means for allowing linear translation of handrail16relative to deck12.

Elongated supports56, legs62, and slider means are one embodiment of structure capable of performing the function of a fold-out means for connecting handrail16to deck12so as to enable handrail16to project above deck12when deck12is in the operational position and to automatically collapse into substantial alignment with deck12when deck12is rotated into the storage position. Fold-out means enables deck12to be repositioned by pivotal movement from the storage position into the operational position, and simultaneously, handrail16to be repositioned by a combination of pivotal movement and linear translation.FIGS. 2A and 2Billustrate the pivotal movement and linear translation allowed by fold-out means when deck12is pivoting between the operational position and the storage position, while simultaneously handrail16pivots and linearly translates automatically in response to the movement by deck12.

When treadmill10is being repositioned, deck12and handrail16unfold outwardly so as to allow a user on deck12to be facing front end28of deck12as illustrated inFIG. 1. In those cases that treadmill10is selectively stored against a wall11, deck12and handrail16unfold outwardly from wall11so that a user is both facing away from wall11and toward front end28of deck12. It can be appreciated that various embodiments of structure capable of performing the function of such a fold-out means are equally effective in carrying out the intended function thereof.

FIG. 3illustrates deck12in the storage position where handrail16has automatically collapsed into substantial alignment with deck12. In the storage position, deck12is positioned proximate to handrail16. In one embodiment, deck12is in the storage position, and deck12and handrail16are substantially upright. In this configuration, treadmill10is significantly more compact and occupies less floor space. When deck12is in the storage position, treadmill10is supported by base14. Base14comprises body15and stabilizer members68and is configured to be freestanding. Base14stably supports treadmill10when deck12is in the storage position and during movement between the storage position and operational position.

While the drawings and foregoing description disclose one presently preferred embodiment, it should be appreciated that other handrail configurations may be readily adapted for use with the present invention. For example, instead of handrail16folding and unfolding in a single motion as deck12is moved between the operational and storage positions, other more simplified handrail configurations can readily be employed wherein deck12is rotated between the storage and operational positions in one motion and, then in a second and separate motion, handrail16and control console54are rotated between their compact storage and their operational positions.

As illustrated inFIG. 3, deck12may include a rigid undercover90secured to frame structure18. The rigid undercover90may be formed of plastic-like create an essentially rigid underside to deck12. Although undercover90is rigid, undercover90may be made of material thin enough to be flexible or to deflect without breaking. Without rigid undercover90, deck12has exposed operating structure, such as electrical components, and any inclination system is exposed. Aside from an undesirable visual appearance, the exposed components can be hazardous because of having sharp edges, points and structures against which things or items may bump or snag. Similarly, there is a risk of exposing any electrical components to moisture as well as exposing the user to an electrical shock hazard if the treadmill is inadvertently not turned off. It may also be noted that undercover90may be formed to cover only a portion of the exposed components or may be formed into multiple or removable sections to facilitate any needed repair.

As depicted inFIG. 3, one embodiment of deck12includes a pair of feet92which are rotatably secured to each side of the frame structure18. Specifically, feet92are pivotally secured to right frame member22and frame member20. Other conventional methods of movably attaching feet92are equally effective in carrying out the intended function thereof.

Deck12may include a mechanism for automatically varying the inclination of deck12relative to the support surface. A motor connected to a rack and a pinion which is connected to feet92may be used to vary the inclination of deck12. Rotatable feet92and a mechanism for automatically varying the inclination are one example of structure capable of performing the function of an incline means for varying the inclination of deck12relative to the underlying support surface. It is contemplated that various types of known inclination means may be incorporated within deck12. Other types of inclination means are equally effective in carrying out the intended function thereof.

As illustrated inFIG. 4, base14has a cover100positioned over structure such as a drive means for supplying power to deck12to drive continuous belt34. Cover100provides a place for the user of treadmill10to stand prior to getting on continuous belt34or when stepping off of continuous belt34as well as for aesthetics and safety reasons to minimize the risk of materials entering the drive mechanism or otherwise interfering with the operation and mechanism.

Base14also comprises a forward cross-support94which is disposed between stabilizer members68. Similarly, base14includes a rear cross-support96that extends between and is connected to the back-most part of body15of base14. Forward and rear cross-supports94and96, respectively, may be attached to body15of base14by conventional attachment methods such as by nuts and bolts, brackets, welds, or by braising.

Base14is sized and configured so as to provide adequate support to treadmill10when deck12is in the storage position. Base14also provides sufficient support while repositioning deck12from the operational position to the storage position when handrail16is automatically collapsing into substantial alignment with deck12. Base14is sized to provide treadmill10with sufficient support so that deck12is stably supported in the storage position, in the operational position and during movement in between. Base14is also able to support handrail16as it moves simultaneously with deck12.

Base14could be in any desired geometric shape with a predetermined length and width. The length and width are selected so that the distance between the vertical location of the center of gravity of treadmill10is such that the force necessary to tip treadmill10is necessarily more than that applied by an accidental bump or nudge. The distance base14, including stabilizing members68, extends outward away from wall11in the direction that deck12rotates when moving into the operational position, is selected such that tipping of treadmill10can be effected only by a user deliberately seeking to tip treadmill10.

Similarly, the width of base14is selected so that the distance between the center of gravity and the perimeter of base14will resist accidental tipping by a bump or nudge. That is, treadmill10cannot be tipped sideways except by the application of a user deliberately seeking to tip treadmill10sideways.

As illustrated inFIG. 4, treadmill10also comprises a motor98that rotates a first pulley101that drives a belt102. Belt102drives a second pulley104connected to rear roller106about which continuous belt34is disposed. The forward portion of continuous belt34also is disposed around a front roller108. Rear roller106and front roller108are attached laterally between left frame member22and right frame member24. Motor98, pulleys100,104, and belt102are one embodiment of structure capable of performing the function of a drive means for supplying power to deck12to drive continuous belt34. Other embodiments capable of performing the function of such drive means may include a flywheel. Various embodiments of drive means are equally effective in carrying out the intended function thereof.

As can be seen inFIG. 4, motor98, pulleys100,104, and belt102are positioned within base14to the side of main body15. The portion of base14that includes motor98, pulleys100,104, and belt102is slightly raised in height when compared to main body15. One advantage of having main body15separate from the drive means is that the height of main body15can be reduced and is closer to the support surface. This makes it easer for the user to step on and off of main body15of base14. Reducing the height of base14also reduces the necessary height of deck12. As a result, the height of the exercise surface formed by endless belt34is reduced. The weight of the drive means acts as a counterbalance to stabilize treadmill10when deck12is being reoriented from the operational position shown inFIG. 1to the storage position illustrated inFIG. 3.

An alternate embodiment of treadmill10includes deck12with means comprising a flywheel. Flywheel is connected to the continuous belt34and receives energy from the user operating the continuous belt34of deck12. Flywheel also delivers energy to that continuous belt34as the user performs walking, running, or jogging exercises when the user is suspended and not in contact with continuous belt34. In those embodiments of treadmill10that utilize a flywheel as a drive means rather than an electric motor, the operator may begin using treadmill10once deck12has been moved to the operational position.

Deck12has a longitudinal length which is selected to facilitate the performance of walking, jogging, or running exercises desired. The length may vary for treadmills configured for walking and treadmills configured for jogging and running. In addition, the length of the continuous belt34will vary correspondingly.

For some users, the amount of lifting force necessary to move deck12from the operational position to the storage position with handrail16automatically collapsing into substantial alignment with deck12may be large enough that rotating deck12is difficult.FIG. 3illustrates one embodiment of treadmill110that incorporates a pneumatic cylinder110. Pneumatic cylinder110is rotatably attached at one end to deck12and the opposite end thereof is attached to stabilizing member68of base14. The embodiment of deck12illustrated inFIGS. 3 and 5have pneumatic cylinder110attached to right frame member22of frame structure18and associated right side of base14. Pneumatic cylinder110could instead be attached to the left frame member20of deck12and left side of base14. Alternatively, a pneumatic cylinder110could mounted on both sides of deck12. Pneumatic cylinder110is one example of structure capable of performing the function of lift assistance means for applying a force urging deck12to move from the operational position to the storage position. Other embodiments of structure capable of performing the function of a lift assistance means are equally effective in carrying out the intended function thereof.

It is also contemplated that handrail16may comprise moveable arms rotatably attached to the inside surface of uprights40. For example, in one embodiment of handrail16moveable arms are pivotally attached to uprights40with a hand operated knob to tighten and secure moveable arms and to increase or decrease the resistance of the moveable arms to rotation. The moveable arms have a gripping portion configured for grasping by a user.

To use fold-out treadmill10, a user rotates deck12from the storage position shown inFIG. 3to the operational position as shown inFIG. 1.FIG. 4shows the various interim positions as deck12moves from the operational position to the storage position. In the operational position, base14, deck12, and handrail16define a “footprint” of treadmill10. It is intended that the “footprint” of treadmill10be regarded as the perimeter of the geometric figure of base14, deck12, and handrail16projected on to the support surface when tread base12is in the operational position. When deck12is moved from the storage position to the operational position, handrail16automatically moves into a position projecting above the front end28of deck12. As deck12is moved between the operational position and the storage position, handrail16also moves. At all times during the movement of deck12between the operational position and storage position, both deck12and handrail16remain at all times within the “footprint” of treadmill10. This enables treadmill10to be placed against a wall and remain there while deck12is moved between the operational and storage positions without either deck12or handrail16contacting the wall.

With deck12in the operational position, the user stands on continuous belt34and walks, jogs, or runs to perform exercises. If the user desires to vary the inclination, the user may, depending on the embodiment of treadmill10, operate a switch on console54to electrically operate the automatic incline means or may manually adjust the incline means shown inFIG. 3by rotating feet92. The user may thereafter operate console54to energize the motor. In order to operate treadmill10utilizing an electric drive means, the user must provide energy to the system by inserting the plug into a conveniently available wall outlet.

Once the user is done exercising on treadmill10, deck12is repositioned into the storage position by lifting front end28of deck12, which causes handrail16to automatically collapse into substantial alignment with deck12when deck12is rotated into the storage position. Specifically, lifting front28of deck12causes elongated support56to rotate downward about the pivotal connection of lower end60toward deck12. The rotational movement of elongated support56causes lower end44of upright40of handrail16that is attached to wheel76disposed in slider bracket74to translate linearly relative to deck12. The linear translation of upright40causes distal end66of leg62to rotate, while proximal end64of leg62that is attached to lower end44of upright40rotates. The rotational movement of the various structural parts as well as the linear translation of handrail16relative to deck12happens substantially simultaneously while deck12is being lifted at front end28thereof. The rotational movement and the linear translation of handrail16automatically occur every time deck12is repositioning between the operational position and the storage position. In addition, the rotational movement and the linear translation of handrail16keeps handrail16within the “footprint” of treadmill10.

Although not shown in the figures, it is contemplated that treadmill10may also include a latching means for retaining deck10in the storage position with handrail16collapsed into substantial alignment with deck12. Those skilled in the art will recognize that various forms and shapes of latching mechanism may be used to facilitate the automatic latching arrangement.

FIG. 6illustrates another embodiment of a fold-out treadmill200. The majority of the features previously discussed apply to this embodiment of treadmill200. The features that are not affected are identified with the same reference numbers as used inFIGS. 1–5. Only those features that have changed will be described in detail.

FIG. 6depicts another embodiment of treadmill200that includes another embodiment of a fold-out assembly. As previously discussed, deck12comprises a frame structure18that includes a left frame member20and a right frame member22which are mirror images of each other. In one embodiment of treadmill200, left frame member20and right frame member22comprise a side rail202and a side base38. As more clearly shown inFIG. 7, side rail202has an elongated aperture204formed therethrough.

Treadmill200, shown inFIG. 6, comprises base14. In the embodiment illustrated, base14includes main body15and a pair of stabilizer members206. As more clearly depicted inFIG. 8, stabilizer members206have a forward end70and a back end (not shown). In one embodiment, forward end70of stabilizer members206has a wheel216attached thereto. Wheel216assists the user in moving treadmill200when deck12is in the storage position generally depicted inFIGS. 3 and 5.

Referring toFIG. 7, in one embodiment, a fold-out assembly comprises an elongated slider assembly210attached to the interior of side rail202, aperture204formed in side rail202, leg208, and support member56. One embodiment of slider assembly210comprises a slider212and a pair of slider rods214. As illustrated, one embodiment of slider rods214has a substantially round cross-section. It will be appreciated, however, that slider rods214may have various other cross-sectional configurations, such as by way of example and not limitation, oval, elliptical, square, rectangular, and the like, or any combination thereof.

Turning toFIG. 8, a rod housing220is mounted on each end of slider rods214. In one embodiment, rod housing220is configured to receive a portion of slider rod214therein and to hold them in a substantially parallel relationship. Slider212is disposed between slider rods214. The outside surface of slider212is configured to cooperate with the configurations of slider rods214. In an alternate embodiment, slider assembly210comprises one (1) slider rod and a slider that is configured to be mounted on the slider rod. In this embodiment, the slider has an opening formed therein that is configured to receive the slider rod therein for linear movement. It will be appreciated that various other configurations and arrangements of a slider assembly may be utilized.

As previously mentioned the lower end44of upright40is pivotally attached to proximal end64of leg208. Lower end44of upright40and proximal end64of leg204are slidingly attached to slider assembly210through aperture208formed in side rail202. More particularly, lower end44of upright40and proximal end64of leg208are attached to slider212through aperture204. Slider212is disposed between slider rods214so as to allow linear translation of lower end44of upright40of handrail16relative to deck12by, for example and not limitation, a bolt, rod, screw, or the like. Other methods of movably attaching lower end44of upright40and proximal end64of leg208to slider212through aperture204in side rail202are equally effective in carrying out the intended function thereof. Slider rods214, slider212and aperture204in side rail202depicted inFIGS. 7 and 8are one embodiment of structure capable of performing the function of a slider means for allowing linear translation of handrail16relative to deck12.

Elongated supports56, legs208, and slider means are one embodiment of structure capable of performing the function of a fold-out means for connecting handrail16to deck12so as to enable handrail16to project above deck12when deck12is in the operational position and to automatically collapse substantially into alignment with deck12when deck12is rotated into the storage position. As with the embodiment of fold-out means illustrated inFIGS. 2A and 2B, the embodiment of fold-out means depicted inFIGS. 7 and 8allows deck12to be repositioned by pivotal movement between the operational position and the storage position while substantially simultaneously handrail16pivots and linearly translates in response to the movement by deck12.

In use, fold-out treadmill200operates very similarly as treadmill10. In the operational position, base14, deck12, and handrail16define a “footprint” of treadmill200. When deck12is moved from the storage position to the operational position, handrail16automatically moves into a position projecting above the front end28of deck12. As deck12is moved between the operational position and the storage position, handrail16also moves. During the movement of deck12between the operational position and storage position, both deck12and handrail16remain at all times within the “footprint” of treadmill10.

Once the user is done exercising on treadmill10, deck12is repositioned into the storage position by lifting front end28of deck12, which causes handrail16to automatically collapse into substantial alignment with deck12when deck12is rotated into the storage position. Specifically, lifting front28of deck12causes elongated support56to rotate downward about the pivotal connection of lower end60toward deck12. The rotational movement of elongated support56causes lower end44of upright40of handrail16that is attached through aperture204to slider212of slider assembly210to translate linearly relative to deck12. The linear translation of upright40causes distal end66of leg208to rotate, while proximal end64of leg208that is attached to lower end44of upright40rotates. The rotational movement of the various structural parts as well as the linear translation of handrail16relative to deck12happens substantially simultaneously while deck12is being lifted at front end28thereof.

FIG. 9illustrates another possible embodiment of a fold-out treadmill310. The majority of the features previously discussed apply to this embodiment of treadmill310. The features that are not affected are identified with the same reference numbers as used inFIGS. 1–8. Only those features that have changed will be described in detail.

As with the previous embodiments of the fold-out treadmill, fold-out treadmill310includes a deck312, a base314, and a handrail316. Deck312has a back end30and a front end28. Back end30of deck312is pivotally mounted to base314. Together, deck312and base314form a support structure of treadmill310. Alternatively, only deck312or base314is the support structure of treadmill310. One possible embodiment of treadmill310is illustrated inFIG. 9in the operational position. When treadmill310is in the operational position, deck312extends outwardly from base314and is positioned for use by a user. In the operational position, deck312may be substantially level or somewhat inclined depending on the user's preference.

As with the other embodiments of the fold-out treadmill, deck312has a storage position in which deck312is positioned proximate to handrail316as illustrated inFIG. 10. In some embodiments, by way of example and not limitation, deck312may be substantially upright when it is in the storage position. Deck312can be selectively rotated between the operational and storage position. Although reference is made to “the storage position” being substantially upright, it will be appreciated by one skilled in the art that that treadmill310could be “stored” with deck312in the operational position.

FIG. 9depicts one possible embodiment of treadmill310. Base314is movably attached to back end30of deck312. Base314has a forward end402and a rearward end404. In this embodiment of treadmill310, back end30of deck312is mounted on base314. In other words, base314supports back end30of deck312. More specifically, as shown inFIGS. 9 and 12, back end30of deck312is rotatably mounted on base314toward rearward end404of base314. Although, in other embodiments, back end30of deck312can be mounted toward forward end402or any point intermediate of forward end402and rearward end404. Although in this embodiment base314is attached to deck312in a slightly different manner than that of treadmill10, base314is similar to base14(FIG. 1) in that it includes a cover100and drive means (not shown) for driving continuous belt34of deck312.

Base312is sized and configured so as to provide adequate support to treadmill310when deck312is in the storage position. Base314also provides sufficient support for treadmill310while deck312is moving between the operational position to the storage position when handrail316is automatically moving into substantial alignment with deck312. Base314is sized to provide treadmill310with sufficient support so that deck312and handrail316are stably supported in the storage position, in the operational position and during movement in between. It will be appreciated that base314could have various geometric shapes with a predetermined length and width sufficient to perform the function thereof. As with base14, the length and with of base314are selected so that tipping of treadmill310can be effected only by someone deliberately seeking to tip treadmill310.

Front end28of deck312is supported on the support surface or floor by a pair of feet392which are rotatably secured to each side of the frame structure18. Alternatively, various other numbers of feet392could be used including just one foot. It will be appreciated by one skilled in the art that the right side and the left side of deck312are mirror images and for clarity, only the right side will be discussed in detail. Specifically, feet392are pivotally secured to right frame member22and frame member20(not shown). Other conventional methods and mechanisms for movably attaching feet392to frame structure18of deck312are capable of carrying out the intended function thereof. It will be appreciated that rotatable feet392are attached to deck312in such a manner to have various positions, thereby being giving deck312varying inclinations as desired by the user.

In this illustrative configuration, back end30of deck312is rotatably attached to base314by conventional methods. Specifically, back end26of both right frame member22and left frame member20(not shown) are pivotally attached to base314near rearward end400of base314. In one embodiment, base314has a mounting bracket406configured to rotatably cooperate with back end30of deck312. By way of example and not limitation, in one possible embodiment, the rear roller (not shown) for continuous belt34is the pivot point for rotatably connecting back end30of deck312to base314. In an alternate embodiment, by way of example and not limitation, back end30of frame structure18of deck312could be the pivot point and be rotatably attached to base314by various conventional attaching methods including a mounting bracket. Various other embodiments of structure capable of performing the function of a means for connecting a deck to a base so as to enable the deck to selectively rotate between an operational position and a storage position are capable of performing the intended function thereof.

FIG. 9depicts one possible embodiment of a handrail316that is movably attached to the support structure. One possible embodiment of handrail316is substantially U-shaped. When deck312is in the operational position, handrail316is open at the rear-most portion and closed at the front-most portion. As depicted inFIG. 9, when deck312is in the operational position, handrail316extends across deck312at the front end28of deck312. It will be appreciated by one skilled in the art, that various other configurations of handrail16are capable of performing the intended function thereof. In one embodiment, by way of example and not limitation, handrail316includes a control console354.

Handrail316is configured to automatically reposition into substantial alignment with deck312when deck312is in the storage postion as illustrated inFIG. 10. Although it is desirable for handrail316to automatically reposition into substantial alignment with deck312when deck312is selectively moved to the storage postion, it can be appreciated by one skilled in the art that handrail316may be manually repositioned into substantial alignment with deck312.

Returning toFIG. 9, in one embodiment, handrail316has a first end348and a second end350. It will be appreciated by one skilled in the art that the right side and the left side of handrail316are mirror images and for clarity, only the right side will be discussed in detail. First end348of handrail316is attached to a leg362. Leg362has a proximal end364that is attached to first end348of handrail and a distal end366that is movably attached to base314. More specifically, as will be discussed in further detail below, distal end366of leg362is pivotally attached to base314. It will be appreciated that various other embodiments of handrail316and/or leg362would be capable of performing the function thereof. By way of example and not limitation, leg362could be eliminated and first end348of handrail316reshaped and extended to pivotally connect to base314. Similarly, leg362could have various other shapes and configurations.

An elongated support356is movably coupled with handrail316and deck312. Specifically, elongated support356has a first end58that is rotatably coupled to handrail316and a second end60that is rotatably attached to frame structure18of deck312. In one possible embodiment, elongated support356is rotatably attached to proximal end364of leg362. It will be appreciated that elongated support could be movingly attached to second end350of handrail316. Handrail316, elongated support356, and leg362are configured to allow handrail316to rotate from extending over front end28of deck312into substantial alignment with deck312when deck312is in the storage position. It will be appreciated that various methods of rotatably connecting elongated support356to handrail316and frame structure18of deck312may be used to carry out the intended function thereof. For instance, in the configuration where handrail316is manually positioned to a storage configuration with deck312in a storage position, elongated support could be eliminated and instead leg362could include a stop that prevents over rotation of handrail316.

Elongated supports356and legs362are one embodiment of structure capable of performing the function of a fold-out, means for connecting handrail316to deck312so as to enable handrail316to project above deck312when deck312is in the operational position and to automatically move into substantial alignment with deck312when deck312is rotated into the storage position. In this embodiment, fold-out means enables deck312to be repositioned by rotational movement from the storage position into the operational position, and simultaneously, handrail316to be repositioned by rotational movement.

When treadmill310is being repositioned from the storage position to the operational position, deck312and handrail316unfold outwardly so as to allow a user on a deck to be facing front end28of deck312as illustrated inFIG. 9. As previously mentioned, the repositioning of handrail316can be performed automatically or manually depending on the configuration of the treadmill. It will be appreciated that various embodiments of structure capable of performing the function of such a fold-out means are capable of carrying out the intended function thereof.

As previously mentioned,FIG. 10illustrates deck312in the storage postion where handrail316has automatically moved into substantial alignment with deck312. In one embodiment, handrail316automatically rotates into substantial alignment with deck312simultaneously with deck312as deck312moves from the operational position to the storage position. As illustrated, in the storage position, deck312is positioned proximate to handrail316. In one embodiment, by way of example and not limitation, when deck312is in the storage position, deck312and handrail316are substantially upright, although various other angular orientations of deck312and handrail316are capable of performing the function thereof. In addition, in one possible embodiment, when deck312is in the storage position, treadmill310is supported by base314. Base314is configured to be free standing and stably support treadmill310at all times including when deck312of treadmill310is in the storage position and during movement between the storage position and the operational position.

Deck312may include a mechanism410configured that upon actuation varies the inclination of deck312relative to the support surface or floor. In one possible embodiment depicted inFIGS. 9,10, and12, mechanism410includes a motor412movably connected to base314and operatively connected to an extension414through conventional gearing mechanism and/or linkages. The motion from motor412is translated into a linear movement by the conventional gearing mechanisms and linkages so as to change the inclination of the deck312. In one embodiment, the gearing mechanism or linkage may be, by way of example and not limitation, a worm gear assembly, a rack and a pinion assembly, a ball screw assembly, or the like. It will be appreciated that various types of motors and gearing systems can be used to change the inclination of deck312.

The gearing mechanism, disposed within an optional housing carrying motor412and/or with an optional protective sleeve420, is attached to extension414by conventional attaching means such as a pin or other mechanical attaching devices. In one possible embodiment, extension414is rotatably attached to cross-member416. By way of example and not limitation, in one embodiment, extension414is rotatably attached to a cantilever418that is fixedly attached to cross-member416by conventional attachment methods such as welding, bolts, screws, rivets and the like. Various other possible ways of attaching extension414to cross-member416include a pin, bearings, or the like. It will be appreciated that various other methods of rotatably connecting extension414to cross-member416could be used. Cross member416is attached to feet392.

AlthoughFIG. 12depicts extension414being attached to cross member416between feet392, it will be appreciated that extension414could be rotatably attached directly to one foot392with cross-member extending to another foot392. Additionally, in an alternate embodiment, there could be two extensions, with each rotatably connected to one of feet392, and cross-member416would be eliminated.

In another possible embodiment of mechanism410for varying the inclination of deck312, motor412is connected to a cylinder arrangement that is rotatably connected to cross-member416in a similar fashion to extension414. By way of example and not limitation the cylinder arrangement could be a pneumatic cylinder, hydraulic cylinder, spring or other elastomeric cylinder, or the like. Through operation of motor412, the cylinder arrangement moves feet392to vary the incline of deck312of treadmill310. It will be appreciated by those skilled in the art that various other types of cylinder arrangements could be used to perform the function thereof.

Mechanism410is one embodiment of structure capable of performing the function of an incline means for varying the inclination of deck132relative to a support surface, such as a floor. It is contemplated that various types of known inclination means may be incorporated within treadmill310and are capable of performing the intended function thereof.

It will also be appreciated that various other arrangements of mechanism410are capable of performing the intended function thereof. By way of example and not limitation, it will be appreciated by one skilled in the art that mechanism410could be mounted entirely to deck312. In other words, motor412of mechanism410would be mounted below deck312instead of being rotatably attached to base314.

It will be appreciated by on skilled in the art that the incline means can be actuated and controlled by the user of the treadmill by one or more controls on console354, which allows the user to actuate mechanism410and vary the inclination of deck312relative to the support surface as desired.

Mechanism410configured to vary the inclination of deck312relative to the support surface or floor could also be combined with any of the treadmills shown inFIGS. 1–8. Further, the lift assistance assembly110shown inFIG. 3could be use on treadmill310in addition to mechanism410. The lift assistance assembly110fromFIG. 3could have one end attached to base314and the other attached to frame structure18of deck312. It will be appreciated that the lift assistance assembly could be in the form of a pneumatic cylinder, hydraulic cylinder, spring or elastomeric cylinder or the like.

Treadmill310also includes a mechanism configured to automatically lift and move deck312from the operating position to the storage position and visa versa. In one possible embodiment depicted inFIGS. 9,10, and12, mechanism410performs the function of automatically lifting and moving deck312from the operation position to the storage position and visa versa. Alternatively, treadmill310can include a separate mechanism, optionally similar to mechanism410, to perform the lifting and moving function.

Consequently, the mechanism to lift or move deck312can include a motor, gearing mechanism, linkage, cylinder arrangement, or the like, as discussed herein or identified from the teaching herein. It will appreciated, that the mechanism to automatically lift or move deck312is not required to be the same as the mechanism to vary the incline of deck312and can be completely separate and have difference configurations.

In operation, upon actuation of mechanism410for automatically lifting or moving deck312from the operating position to the storage position, feet392are driven as far forward as they will rotate, such as the position depicted inFIG. 11. As illustrated inFIG. 11, as feet392are rotated toward front end28of deck312, feet392reach a point where deck312begins to have a negative slope or is downhill. In this position, front end28of deck312is lower than back end30of deck312. As illustrated inFIG. 11, motor412of mechanism410continues to exert force on extension414and drives extension414toward front end28of deck312such that sufficient force is exerted to drive or move deck312upwardly and gradually rotate deck312into the storage position depicted inFIG. 10. In other words, the configuration of mechanism410is such that the force exerted on deck312is sufficient to drive, and consequently, rotate, deck312upwardly.

As previously mentioned, as deck312is rotated toward the storage postion, handrail316simultaneously moves and rotates into substantial alignment with deck312. As can be seen fromFIG. 11, as deck312rotates toward the storage position, elongated support356, leg362, and handrail316rotate toward back end30of deck312. It will be appreciated that handrail316, elongated support356, and leg362are configured to be able to rotate toward back end30of deck312without contacting support surface, thereby avoiding any interference or binding.

Mechanism410is one embodiment of structure capable of performing the function of a lifting means for automatically moving deck312between the operational position and the storage position. It is contemplated that various types of automatic lifting means may be incorporated within treadmill310and perform the intended function thereof. It will be appreciated that in another embodiment, feet392could be eliminated from mechanism410and mechanism410could be rotatably coupled to a portion of deck312. Alternatively, feet392could be fixedly mounted to frame structure18. In yet another embodiment feet392and cross-member416could be eliminated with a portion of mechanism410rotatably attached directly to a forward portion of frame structure18of deck312.

It will be appreciated by one skilled in the art that the lifting means can be actuated by the user of the treadmill while not standing on deck312actuating a button or switch on console54to cause deck312to move from the operational position to the storage position or visa versa. In the alternative, there could be a remote control that the user uses to actuate the lifting means.

As described herein, in one embodiment mechanism410is configured to both vary the inclination of deck312relative to the support surface and automatically lift and move deck312. It will be appreciated that mechanism can do either one of the recited functions or both of the recited functions. It will also be appreciated that the various alternate configurations would be capable of carrying out the separate functions. One possible advantage of mechanism410that is capable of carrying out both functions is that is simplifies the treadmill by combining two mechanisms into one.