Patent Publication Number: US-2021170816-A1

Title: Trailer hitch configuration with integrated floor tilt frame

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application claims priority to U.S. patent application Ser. No. 16/151,112, filed on Oct. 3, 2018, to Alan G. VanNahmen, entitled “Front Load Trailer Hitch Configuration with Integrated Floor Tilt Frame,” currently pending, which claims priority to U.S. Provisional Patent Application Ser. No. 62/606,657, filed on Oct. 3, 2017, to Alan G. VanNahmen, entitled “Front Load Trailer Hitch Configuration with Integrated Floor Frame Tilt Feature,” now expired, the entire disclosure of which is incorporated herein by reference. 
    
    
     FIELD OF INVENTION 
     The present invention relates generally to tow hitch apparatuses, and more particularly to a pivotable tow hitch assembly adapted for allowing the loading and unloading of cargo at the front or forward end of a towable trailer. 
     BACKGROUND OF INVENTION 
     The transportation of large, bulky, or specialty cargo typically requires the use of trailers that are adapted to be drawn behind a powered towing vehicle. Traditionally, such trailers have included a hitch apparatus or assembly, typically located at or near the front or forward end of the trailer, for detachably coupling the trailer with the towing vehicle. Such hitch apparatuses come in variety of configurations suitable for coupling with different towing vehicles and hauling different types of cargo depending on the circumstances. The coupling means for attaching the trailer via the hitch apparatus to the towing vehicle oftentimes consist of ball and socket hitches, straight tow hitches, gooseneck hitches, pintle hook hitches, fifth wheel hitches or other commercially available coupling means. 
     The types of cargo traditionally hauled by trailers can include such things as goods, consumer products, vehicles, military equipment, agricultural or construction equipment, baled crops or hay, and livestock, among numerous other things. The traditional attachment location and configuration of a trailer&#39;s hitch apparatus relative to the trailer itself typically requires the cargo to be loaded or unloaded at the rear end of the trailer, opposite of the hitch apparatus. One advantage of this rearward loading and unloading method is that it allows for the trailer to remain coupled to the towing vehicle during the loading or unloading process, which generally expedites the transportation process by limiting the amount of time it takes to load or unload the trailer without having to decouple or recouple the trailer to the towing vehicle. 
     Other circumstances, however, may demand atypical means of loading and unloading a trailer, and such atypical means require the use of specialty trailer apparatuses or ancillary devices and equipment for purposes of loading cargo. Atypical loading and unloading means can include methods of loading and unloading a trailer in a manner other than from the rear of the trailer, including loading and unloading cargo from the front or the sides of the trailer. One problem with these atypical loading means is that since the hitch apparatus is oftentimes located generally at the front or forward end of the towed trailer, the hitch apparatus can interfere with or otherwise frustrate front loading—as well as side loading—which may require moving, displacing, or decoupling or removing the hitch apparatus, or removing other impediments. 
     For example, atypical loading and unloading means can be facilitated by means that requires a hitch apparatus comprised of a pivotable or “swing away” tongue, which is generally adapted to overcome the structural impediments related to front loading by temporarily moving the components of the hitch apparatus to a less obstructive position. However, such hitch apparatuses do not overcome every obstacle related to atypical loading means, and specifically, a hitch apparatus with a pivotable or “swing away” tongue is generally ill-suited for front loading or unloading cargo from a position that is above or below the cargo-storing plane of the trailer. At the same time, a decouplable gooseneck trailer, which generally further comprises a removable front deck, can allow for cargo situated above or below the cargo-storing plane of the trailer to be loaded or unloaded at the front or forward end of the trailer only by decoupling the hitch apparatus, removing the front deck and lowering the forward end of the trailer to the ground. Further, side loading of a trailer can require such things as ramps, sloped flooring, and loading docks with a terminal loading point at or relatively near the same height as the cargo-storing plane of the trailer, or trailers specifically modified to be better suited for side loading or unloading of cargo, including drop deck or step deck trailers. 
     These identified atypical loading and unloading means increase the versatility of the trailer by allowing the trailer to be used in a greater number of circumstances, but they are not without their deficiencies that make them time-consuming, cumbersome, and costly. One such problem relates to requisite decoupling of the hitch apparatus from the towing vehicle for purposes of front loading or unloading cargo that is above or below the cargo-storing plane of the trailer, which is time-consuming and, consequently, adversely affects the efficiency of the loading or unloading process. Further, such front loading or unloading devices and methods can also require replaceably removing significant pieces or components of the trailer or hitch apparatus, as best illustrated by decouplable gooseneck trailers, as discussed above. 
     Another problem relates to the need for additional or specialty equipment to achieve the atypical means of loading or unloading of cargo, which can include portable ramps or specialized flooring and docks capable of conducively adjoining with a trailer and the cargo-storing plane thereof. Such additional equipment does not come without the direct cost of such equipment and potential indirect costs, including, without limitation, the cost associated with hauling the additional equipment from a first loading area to a second loading area instead of the potential, profitable cargo. 
     Further, another problem relates to the restricting effect that certain modifications to the trailer or equipment can have on the versatility of the trailer to carry different types of cargo under different circumstances. Significant modifications to a trailer or trailer design for a singular, specific purpose, including for atypical loading means, can subsequently limit the potential universe of applications for that trailer, which renders the trailer less valuable or even frustrates the essential purpose of the trailer. Specifically, significant modifications to trailers, for example trailers with drop deck or step deck platforms, can adversely affect the hauling capacity and capabilities of a trailer in a way that makes the trailer less versatile and valuable to the owner or operator. 
     Accordingly, a need exists for an improved versatile trailer hitching mechanism that is adapted for atypical and front loading or unloading cargo in an efficient and cost-effective manner, including without decoupling from the towing vehicle. 
     SUMMARY OF THE INVENTION 
     The present invention is directed generally to apparatuses and assemblies of a pivotable tow hitch adapted for allowing the loading and unloading of cargo at the front or forward end of a towable trailer. 
     According to one embodiment, the tow hitch assembly may generally comprise a hitch frame operably attached to a trailer frame, wherein the hitch frame generally defines a first plane and comprises a coupling means provided at a distal end of the hitch frame and a pivotal connection device provided at a proximal end of the hitch frame. Further, the pivotable connection device is adapted for selectively pivoting the tow hitch assembly to at least one of a first position, a second position, and a third position relative to the trailer frame, wherein a front end of the trailer frame moves downwardly relative to the coupling means when the hitch assembly is in the second position and upwardly relative to the coupling means when the hitch assembly is in the third position. Further, the tow hitch assembly may comprise a locking device for selectively securing the hitch assembly in at least one of the first position, the second position, and a position between the first position and the second position. 
     According to one embodiment, the pivotable connection device of the tow hitch assembly may define a pivot axis that is angularly offset from a second plane generally defined by the trailer frame, wherein the pivot axis may be angularly offset from the second plane in at least one of a lateral direction and a longitudinal direction and may be angularly offset by an offset angle of between about 70° and about 87°. Further, the first plane and the second plane may be angularly offset from one another when the hitch assembly is in the second position by between about 3° and about 20°. 
     According to one embodiment, the pivotable connection device of the tow hitch assembly may comprise a first swivel plate and a second swivel plate axially and pivotably coupled to one another about the pivot axis, wherein the first swivel plate further comprises an outer surface and an angled inner surface and the second swivel plate further comprises an outer surface and an angled inner surface. Further, the angled inner surface of the first swivel plate and the outer surface of the first swivel plate may define a first angle, and the angled inner surface of the second swivel plate and the outer surface of the second swivel plate may define a second angle. Further yet, the first angle may be equal to the second angle and be about between about 3° and about 20°. 
     According to one embodiment, the tow hitch assembly may be pivotably coupled to a trailer frame of a trailer. 
    
    
     
       BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING 
       In the accompanying drawings, which form a part of the specification and are to be read in conjunction therewith in which like reference numerals are used to indicate like or similar parts in the various views: 
         FIG. 1  is a top perspective view of a hitch assembly for use with a trailer in accordance with one embodiment of the present invention; 
         FIG. 2  is a top perspective view of a trailer with a hitch assembly in accordance with one embodiment of the present invention; 
         FIG. 3  is a bottom perspective view of a trailer with a hitch assembly in accordance with one embodiment of the present invention; 
         FIG. 4  is a perspective view of a pivotable connection device of a hitch assembly shown in a first orientation in accordance with one embodiment of the present invention; 
         FIG. 5  is a perspective view of the pivotable connection device of  FIG. 4  shown in a second orientation; 
         FIG. 6  is a perspective view of a swivel plate of a pivotable connection device of a hitch assembly in accordance with one embodiment of the present invention; 
         FIG. 7  is a side view of a swivel plate of  FIG. 6 ; 
         FIG. 8  is a side perspective view of a trailer with a hitch assembly in a first position in accordance with one embodiment of the present invention; 
         FIG. 9  is a side perspective view of the trailer of  FIG. 8  with the hitch assembly in a second position and the trailer floor in a forward sloping orientation; 
         FIG. 10  is a side perspective view of the trailer of  FIG. 8  with the hitch assembly in a third position and the trailer floor in a rearward sloping orientation; 
         FIG. 11  is a partial front schematic view of a pivotable connection device of a hitch assembly, wherein the hitch assembly is in a first position in accordance with one embodiment of the present invention; 
         FIG. 12  is a partial front schematic view of the pivotable connection device of  FIG. 11 , wherein the hitch assembly is in a second position; 
         FIG. 13  is a partial front schematic view of the pivotable connection device of  FIG. 11 , wherein the hitch assembly is in a third position; and 
         FIG. 14  is a top view of the trailer with the hitch assembly in a second position and being pulled by a towing vehicle in accordance with one embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     Various embodiments of the present invention are described and shown in the accompanying drawings. For purposes of clarity in illustrating the characteristics of the present invention, proportional relationships of the elements have not necessarily been maintained in the drawings. It will be appreciated that any dimensions included in the drawings are simply provided as examples and dimensions other than those provided therein are also within the scope of the invention. 
     The description of the invention references specific embodiments in which the invention can be practiced. The embodiments are intended to describe aspects of the invention in sufficient detail to enable those skilled in the art to practice the invention. Other embodiments can be utilized and changes can be made without departing from the scope of the present invention. The present invention is defined by the appended claims and the description is, therefore, not to be taken in a limiting sense and shall not limit the scope of equivalents to which such claims are entitled. 
     One objective of the present invention is to provide a hitch assembly that permits a variety of options for loading and unloading cargo onto a trailer, including, without limitation, front loading or unloading of cargo that is located on the trailer. Another objective of the present invention is to provide a trailer that may be tilted forward and/or backward by rotating the hitch assembly relative to the remainder of the trailer. 
     One embodiment of the present invention is designed to provide a laterally pivotable hitch assembly that can bias the floor or top surface of a trailer into a sloped orientation, relative to the ground, to a degree proportional to the radial offset related to the laterally pivoting movement. The same embodiment can also include a locking means for securing a pivotable connection device that enables the trailer to be acted upon by the powered vehicle, either drawn or pushed, while also at a selected pivot orientation. 
     The present invention is generally directed to a hitch assembly  10  for a trailer  100  that can be pulled by a towing vehicle  120 . As described herein, the hitch assembly  10  generally comprises a pivotable connection device  20  that is fully pivotable between at least one of a first position  16  (where the hitch is in a forwardly extending manner as shown in  FIG. 8 ), a second position  12  (where the hitch is generally on the right or starboard side  112  of the trailer as shown in  FIG. 9 ), and a third position  14  (where the hitch is generally on the left or port side  110  of the trailer as shown in  FIG. 10 ). 
     As described in greater detail below, according to one embodiment of the present invention, the pivotable connection device  20  can be adapted to achieve a slope in the trailer  100 , such that the plane of the trailer&#39;s floor or top side  102  is not generally parallel to the ground (i.e., sloped forward or backward) when the hitch assembly  10  is acted upon by the towing vehicle  120 . Further, as described in greater detail below, the hitch assembly  10 , with the pivotable connection device  20 , can further comprise any number of commercially available coupling means  50  for coupling with a towing vehicle  120 , including, without limitation, ball and socket hitches, straight tow hitches, gooseneck hitches, pintle hook hitches, fifth wheel hitches, and the like. While the coupling means  50  is shown as a ball and socket hitch in the figures, it will be appreciated that any suitable coupling means can be used. 
       FIG. 1  depicts a top perspective view of the hitch assembly  10  in accordance with one embodiment of the present invention, wherein the hitch assembly  10  may generally comprise a frame  26 , a pivotable connection device  20  at a proximal end  22  of the frame  26 , and a coupling means  50  at the distal end  18  of the frame  26 . As shown, the members of the frame  26  and hitch assembly  10  generally form or a lie in a first plane P H . While the hitch assembly frame  26  is illustrated in the figures as having an A-frame shape, it will be appreciated that all other suitable frame shapes and configurations are within the scope of the present invention. In one embodiment, the pivotable connection device  20  can generally comprise one or more rotatable swivel plates  30  mounted for pivotable movement about a pivot axis  24 . However, it will be appreciated that the pivotable connection device  20  may be adapted for pivoting by any number of known pivoting structures, means, or methods. 
     As best illustrated in  FIGS. 2 and 3 , the pivotable connection device  20  is mounted or fastened to the trailer  100 , which can occur on any surface of the trailer, including, without limitation, the bottom side  104  of the trailer, and be achieved by any number of mounting or fastening means, including, without limitation, through welding, bolts, screws, or any other suitable fastening means. The trailer  100  generally comprises a top side  102 , a bottom side  104 , a front or bow end  106 , a rear or stern end  108 , a left or port side  110 , a right or starboard side  112 , and a wheel assembly  114 . Although  FIGS. 2 and 3  depict the trailer  100  as a generally rectangular flatbed trailer, it will be appreciated that the present invention can be mounted or fastened to any number of trailers, including, without limitation, livestock trailers, drop deck or step deck trailers, chassis trailers, container trailers, box trailers, dry van trailers, refrigerated trailers, lowboy trailers, expandable flatbed trailers, stretch single drop deck trailers, specialty trailers and any other commercially available trailers. As illustrated in  FIG. 3 , the top side  102 , bottom side  104 , frame  116 , or one or more of the frame members or components of the trailer  100  generally form or a lie in a second plane P T . 
     In a preferred embodiment, the pivotable connection device  20  is located near the front end  106  of the trailer  100 ; however, it will be appreciated that the pivotable connection device  20  may be located at any point along the length of the trailer  100 . The pivotable connection device  20  can be attached to the hitch assembly  10  so that the hitch assembly  10  is capable of laterally rotating between the first position  16 , second positon  12 , and the third position  14 . 
       FIGS. 4 and 5  illustrate a perspective view of the pivotable connection device  20  in accordance with one embodiment of the present invention. As best illustrated in  FIGS. 4 and 5 , the pivotable connection device  20  can comprise a pair of angled swivel plates  30  axially aligned and operably coupled together by a bolt shaft or other connection means about a pivot axis  24 . As depicted in  FIGS. 6 and 7 , each angled swivel plate  30  further generally comprises an inner surface  32  and an outer surface  36 . Further, the inner or mating surface  32  and outer surface  36  may define a sloped relationship with an angle θ, in accordance with an embodiment of the present invention. In a preferred embodiment, the upper angled swivel plate  30 ′ is fastened or mounted to the trailer  100 , and the lower angled swivel plate  30 ″ is fastened or mounted to the hitch assembly  10 . However, it will be appreciated that, in another embodiment, the upper swivel plate  30 ′ can be fastened or mounted to the hitch assembly  10  and the lower swivel plate  30 ″ can be fastened or mounted to the trailer  100 . Further, it will be appreciated that the means for mounting or fastening the swivel plates  30  can be any number of mounting or fastening means, including, without limitation, welding or bolts, screws, and other fasteners. 
     The angle θ formed between the inner surface  32  and the outer surface  36  of the swivel plates  30  is between about 1° and about 30° in one embodiment, between about 3° and about 20° in another embodiment, between about 4° and about 10° in yet another embodiment, and is about 7° in a further embodiment. 
     As further depicted in  FIGS. 6 and 7 , the pivot axis  24  can be oriented in a manner such that the pivot axis  24  is angularly offset (i.e., not perpendicular or normal in all directions) relative to the surface of the trailer  100  to which the pivotable connection device  20  is attached, such as the top side  102  or the bottom side  104  of the trailer  100 . Further, in accordance with an embodiment of the present invention, the angular offset of the pivot axis  24  relative to the outer surface  36  of the swivel plate  30 , which can be attached to the surface of the trailer  100 , may define a sloped relationship with an angle α. In those embodiments where the pivotable connection device  20  has a pivot axis  24  that is angularly offset, the angle α formed by the pivot axis  24  relative to the outer surface  36  is between about 60° and about 89° in one embodiment, between about 70° and about 87° in another embodiment, between about 80° and about 86° in yet another embodiment, and is about 83° in a further embodiment. 
     It will be appreciated that the angle α, as described above, may also be seen as the angle defined between the pivot axis  24  and at least one of the hitch assembly  10  (or plane P H ) or the trailer  100  or its frame  116  (or plane P T ). In other words, in these embodiments, the pivot axis  24  is not perpendicular to the trailer  100  or its frame  116  (or plane P T ) in all directions. Instead, the pivot axis is angularly offset from being perpendicular by an angle α in at least one direction. It will be appreciated that the pivot axis  24  may be angularly offset from the trailer frame  116  (or plane P T ) in a lateral direction, a longitudinal direction, or in both lateral and longitude directions. When the pivot axis is angularly offset in a lateral direction (e.g., angled to the left or the right), the plane in which the hitch assembly  10  will sweep as it is rotated will lead to the front end of the trailer  100  being lowered when pivoted in one direction and being raised when pivoted in the opposition direction. When the pivot axis  24  is angularly offset only in a longitudinal direction (e.g., angled to the front or the back), the plane in which the hitch assembly  10  will sweep as it is rotated will lead to the front end of the trailer  100  to be lowered (if offset in a forward direction) or raised (if offset in a rearward direction) irrespective of whether the hitch assembly  10  is pivoted to one direction or the opposition direction. 
     In a preferred embodiment, the angle θ of the slope of the top angled swivel plate  30 ′ is generally the same or equal to angle θ or the slope of the bottom angled swivel plate  30 ″. As best illustrated in  FIG. 11 , the top angled swivel plate  30 ′ and the bottom angled swivel plate  30 ″ can be aligned such that the respective inner surfaces  32  of the angled swivels plates are generally parallel to each other, in accordance with one embodiment of the present invention. Such arrangement of the swivel plates  30  generally defines a space  34 , as best depicted in  FIG. 11 , that can be generally uniform over the inner surfaces  32  of the angled swivel plates. It will be appreciated that although the defined space  34  between the angled swivel plates  30  may contain bearings or the like, such components are not required. It will further be appreciated that the pivotable connection device  20  may be created by components or structures other than the swivel plates  30 . For example, in one embodiment, the pivotable connection device  20  may comprise a slewing ring, a slewing bearing, a rotating collared device, any suitable pivotable or rotatable connection, mechanism, or the like. In fact, any structure that results in mating surfaces  32  or pivot axes  24  that are angularly offset relative to the surface of the trailer  100  to which the pivotable connection device  20  is attached (e.g., mating surfaces  32  that are not parallel with the surface of the trailer  100 , a pivot axis  24  that is not perpendicular or normal to the surface of the trailer  100 , and so on), regardless of how such structure is formed, is within the scope of the present invention. 
     As illustrated in  FIGS. 8-10 , when the hitch assembly  10  is laterally pivoted or rotated about the pivot axis  24  of the pivotable connection device  20 , the arrangement of the angled swivel plates  30  and the pivot axis  24  of the pivotable connection device  20  can render a sloped relationship between the hitch assembly  10  and the trailer  100 . For example, in one embodiment, pivoting the hitch assembly  10  toward the second position  12  can cause the front end  106  of the trailer to slope down toward the ground, as depicted in  FIG. 9 . In this position, objects may be loaded or unloaded from the front end  106  of the trailer, which may be adjacent to or near the ground. Similarly, pivoting the hitch assembly  10  toward the third position  14  can cause the front end  106  of the trailer to slope up away from the ground and the rear end  108  to slope down toward the ground, as depicted in  FIG. 10 . In this position, objects may be loaded or unloaded from the rear end  108  of the trailer, which may be adjacent to or near the ground. Due to the angle α defined by the pivot axis  24 , when rotated, the hitch assembly  10  may sweep a path along a plane P H  that is angularly offset from a plane P T  of the trailer  100 . Thus, the front end of the floor or top side  102  of the trailer  100  will move either downwardly (see  FIG. 9 ) or upwardly (see  FIG. 10 ) relative to the coupling means  50  of the hitch assembly  10 , depending upon which direction the hitch assembly is rotated. 
     It will be appreciated that the wheel assembly  114  may be located at any point along the length of the trailer  100  to facilitate the desired upward or downward slope of the front end  106  or the rear end  108  of the trailer  100  relative to the ground. Finally, placing hitch assembly  10  in the first position  16  can cause the floor or top side  102  of the trailer to be generally parallel to the ground, as depicted in  FIG. 8 . 
       FIGS. 11-13  depict partial front schematic views of the angled swivel plates  30  and the arrangement thereof, when viewed from the front or bow end  106  of the trailer  100 , when the hitch assembly  10  is in the first position  16 , the second position  12 , and the third position  14 . In one embodiment, the arrangements of the angled swivel plates  30  can affect the slope of the trailer  100 . 
     For example, when the hitch assembly  10  is in the first position  16 , the respective inner surfaces  32  of the angled swivel plates remain in a parallel relationship and the respective outer surfaces  36  of the angled swivel plates are also in a parallel relationship, as depicted in  FIG. 11 . In this first position  16 , the frame  26  of the hitch is generally parallel with the floor or top side  102  of the trailer  100  (i.e., plane P H  is generally parallel with plane P T ). 
     However, when the hitch assembly  10  is in the second position  12 , the inner surfaces  32  and the pivot axis  24  interact in a manner that causes the respective outer surfaces  36  of the angled swivel plates to become non-parallel and renders a sloped relationship between the outer surfaces  36 , as depicted in  FIG. 12 . In this second position  12 , the frame  26  of the hitch is generally angled relative to the floor or top side  102  of the trailer  100  such that the front end  106  is moved downwardly toward the ground (i.e., plane P T  slopes downwardly relative to plane P H ). 
     Similarly, when the hitch assembly  10  is in the third position  14 , the inner surfaces  32  interact in a manner that causes the respective outer surfaces  36  of the angled swivel plates to become non-parallel and renders a sloped relationship between the outer surfaces  36 , as depicted in  FIG. 13 . In this third position  14 , the frame of the hitch is generally angled relative to the floor or top side  102  of the trailer  100  such that the rear end  108  is moved downwardly toward the ground (i.e., plane P T  slopes upwardly relative to plane P H ). 
     In accordance with one embodiment, the hitch assembly  10  can be pivoted between the second position  12  and the third position  14 , creating either an upward or downward slope in the trailer  100  relative to the ground. The hitch assembly  10  can be moved or pivoted between the various positions by any number of means, including, without limitation, manually, by a motor, by a crank, or by the force exerted by the towing vehicle  120  acting upon the coupling means  50  attached to the distal end  18  of the hitch assembly  10 . It will be appreciated that the desired slope of the trailer can be achieved for purposes of loading or unloading the trailer  100  without uncoupling the hitch assembly  10  from the towing vehicle  120 . 
     Further, in accordance with one embodiment of the present invention, the pivotable connection device  20  can comprise a locking means for selectively securing the pivotable connection device  20  at any orientation or location on or between the first position  16 , the second position  12  and the third position  14 . The locking means can be adapted for retaining the selected orientation for the pivotable connection device  20  even when the hitch assembly  10  is acted upon, whether by the towing vehicle  120  or otherwise. In a preferred embodiment, by retaining the orientation of the pivotable connection device  20  even when the hitch assembly  10  is acted upon, the trailer  100  can be drawn or pushed while simultaneously maintaining its position relative to the vehicle exerting the driving forces. Further, in an additional embodiment, by retaining the orientation of the pivotable connection device  20  even when the hitch assembly  10  is acted upon, the trailer  100  can be drawn or pushed while simultaneously maintaining the sloped angle of the trailer  100  rendered by the position of the hitch assembly  10  relative to the second position  12  or the third position  14 . For example, by using the locking means to secure the pivotable connection device  20  in a way that the hitch assembly  10  is positioned generally toward the second position  12  can allow the trailer  100  to be drawn or pushed while the front end  106  of the trailer is sloped down toward the ground, in a manner similar to what is depicted in  FIG. 9 . 
     In such an embodiment, the trailer  100  and towing vehicle  120  are longitudinally offset from one another, whereby the towing vehicle  120  is located to one side or the other relative to the trailer  100 , as demonstrated in  FIG. 14 . This permits the trailer  100  to be used in applications whereby objects or cargo can be loaded or unloaded from the trailer  100  without the towing vehicle  120  interfering. This also permits the trailer  100  to be used in applications whereby objects or cargo can be loaded while the towing vehicle  120  is driven, such as for loading baled hay or the like. While the towing vehicle  120  is shown as being located to the right side  112  of the trailer  100  in  FIG. 14 , it will further be appreciated that the angle(s) of the pivotable connection device  20  may be modified or reversed in some embodiments such that the towing vehicle  120  may be located to the left side  110  of the trailer  100 . 
     From the accompanying materials, it will be seen that the invention is one well adapted to attain all the ends and objects set forth herein with other advantages which are obvious and which are inherent to the structure. It will be understood that certain features and subcombinations are of utility and may be employed without reference to other features and subcombinations. This is contemplated by and is within the scope of the claims. Since many possible embodiments of the invention may be made without departing from the scope thereof, it is also to be understood that all matters herein set forth or shown in the accompanying drawings are to be interpreted as illustrative and not limiting. 
     The constructions described in the accompanying materials and illustrated in the drawings are presented by way of example only and are not intended to limit the concepts and principles of the present invention. Thus, there has been shown and described several embodiments of a novel invention. As is evident from the description, certain aspects of the present invention are not limited by the particular details of the examples illustrated herein, and it is therefore contemplated that other modifications and applications, or equivalents thereof, will occur to those skilled in the art. The terms “having” and “including” and similar terms as used in the foregoing specification are used in the sense of “optional” or “may include” and not as “required.” Many changes, modifications, variations and other uses and applications of the present construction will, however, become apparent to those skilled in the art after considering the specification and the accompanying drawings. All such changes, modifications, variations and other uses and applications which do not depart from the spirit and scope of the invention are deemed to be covered by the invention which is limited only by the claims which follow.