US20110110756A1

US20110110756A1 - Pickup Truck Bed Slider and Method of Operation

Info

Publication number: US20110110756A1
Application number: US13/005,935
Authority: US
Inventors: Daniel Vandorn Calhoun
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-24
Filing date: 2011-01-13
Publication date: 2011-05-12
Also published as: US20100327616A1; US8033776B2

Abstract

A slide which slides along a retainer attached to the bed of a pickup truck. The slide has a rearward end proximate the tail gate and a forward end proximate the cab of the truck. The rearward end preferably has gripping features allowing a user to easily grasp the slide and pull it rearward within the fixed retainer. The slide's forward end has an upstanding foot which engages cargo within the bed and propels it toward the tailgate. Two or more such devices can be installed in parallel and used simultaneously to unload cargo.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS

This application is a division of application Ser. No. 12/456,921. The parent application was filed on Jun. 24, 2009. It listed the same inventor and remains pending as of the time of filing of this application.

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Not Applicable.

MICROFICHE APPENDIX

Not Applicable

BACKGROUND OF THE INVENTION

1. Field of the Invention
This invention relates to the field of labor saving devices. More specifically, the invention comprises a sliding device which is useful for moving cargo items from the front of a pickup bed toward the rear of the pickup bed where they may be grasped by a user.
2. Description of the Related Art
FIG. 1 shows a prior art pickup truck 10. Bed 12 is bounded by left side wall 20, front wall 16, right side wall 22, and tail gate 14. Two wheel arches 24 interrupt the smooth surface of the bed. Tail gate 14 is shown folded down into the open position, where it lies approximately parallel to the bed. User 64 is standing immediately to the rear of the tail gate, in a position suitable for removing cargo from the bed.
Cargo 30 lies near front wall 16, adjacent to cab 18. Those familiar with the art will know that cargo often winds up in this position. Even if the cargo is originally placed near the tail gate, it will tend to slide forward under braking. Thus, it is common for a user to face a situation where the cargo lies near the cab, well out of reach. The only option then is to climb up into the bed and walk forward to retrieve the cargo. Climbing into the bed is an inconvenience at best. For older or physically challenged users, it may not be a viable option. Thus, it would be useful to have some means to bring the cargo from the position shown in FIG. 1 back toward the tail gate.
Any device which is to be mounted within the pickup truck bed must accommodate the existing features. FIG. 2 shows a more detailed view of bed 12. The reader will observe the presence of numerous parallel ribs 26. FIG. 3 shows a sectioned elevation view through the bed. The bed comprises a flat deck 28 which is periodically interrupted by upstanding ribs 26. The ribs serve to stiffen the deck section. They also make it easier to move cargo about, since cargo 30 only rests upon the top portion of the ribs, rather than across a much larger contact area of deck. This fact minimizes friction. It also creates one or more voids 32.
In recent years, the use of detachable liners for protecting pickup truck beds has become increasingly common. Such layers are typically made of a strong polymer such as ABS. FIG. 4 shows one such bed liner 34. The bed liner actually rests over the top of the deck. FIG. 5 shows a sectioned elevation view through the deck with bed liner 34 in place. Most bed liners are heavily corrugated to provide additional strength. Thus, there are many more bed liner ribs 36 than ribs 26 in deck 28. Most bed liners are made so that some of the bed liner ribs overlay ribs 26 in deck 28. This interlocking prevents lateral motion of the liner.
Cargo 30 rests on top of bed liner ribs 36. The reader will observe that the use of a bed liner creates many more voids 32 than the case of the deck alone. Also, the spacing between the voids is reduced. The presence of these voids provides one possible location for installing a cargo moving device.
Bed covers are another increasingly popular accessory. These cover the open top of the pickup truck bed and shelter the bed from the weather. The user can still store cargo in the bed by opening the tailgate and accessing the bed from the rear. When cargo winds up in the forward portion of the bed, however, the presence of a bed cover presents a substantial impediment to unloading that cargo. Although most bed covers can be opened in some fashion, this step is often time-consuming and laborious. Thus, the present invention preferably facilitates the unloading of cargo with a bed cover in place as well.

BRIEF SUMMARY OF THE PRESENT INVENTION

The present invention comprises a slide which slides in and out of a retainer attached in some fashion to the bed of a pickup truck. The slide has a rearward end proximate the tail gate and a forward end proximate the cab of the truck. The rearward end preferably has gripping features allowing a user to easily grasp the slide and pull it rearward within the fixed retainer. The slide's forward end has an upstanding foot which engages cargo within the bed and propels it toward the tailgate. Two or more such devices can be installed in parallel and used simultaneously to unload cargo.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

FIG. 1 is a perspective view, showing a prior art pickup truck bed.

FIG. 2 is a detailed perspective view, showing an enlargement of the tail gate area.

FIG. 3 is a sectioned elevation view, showing the nature of the deck.

FIG. 4 is a detailed perspective view, showing the addition of a bed liner.

FIG. 5 is a sectioned elevation view, showing how the bed liner lies over the deck.

FIG. 6A is a perspective view, showing one embodiment of the present invention.

FIG. 6B is a perspective view, showing the embodiment of FIG. 6A installed in the bed of a pickup truck.

FIG. 7 is a perspective view, showing the extension of the slide out the rear of the retainer.

FIG. 8 is a sectioned elevation view, showing the placement of the invention between the ribs of a bed liner.

FIG. 9 is a sectioned elevation view, showing the placement of the invention between the ribs of a deck.

FIG. 10 is a perspective view, showing the addition of a gripping feature to the rearward portion of the slide.

FIG. 11 is a perspective view, showing the addition of a pivoting handle to the rearward portion of the slide.

FIG. 12 is a perspective view, showing the handle of FIG. 11 folded upward or use.

FIG. 13 is a perspective view, showing a folding foot at the forward end of the slide.

FIG. 13A is a perspective view, showing an alternate embodiment of the slide and the retainer.

FIG. 13B is a perspective view, showing an alternate embodiment of the slide and the retainer.

REFERENCE NUMERALS IN THE DRAWINGS


10	pickup truck	12	bed
14	tail gate	16	front wall
18	cab	20	left side wall
22	right side wall	24	wheel arch
26	rib	28	deck
30	cargo	32	void
34	bed liner	36	bed liner rib
38	cargo puller	40	slide
42	retainer	44	foot
46	overhang	48	slot
50	flange	52	flange
54	attachment	56	gripping feature
58	pivot joint	60	pivoting handle
62	handle portion	64	user
66	foot pivot joint	68	pin
70	gap	72	base
74	upright	76	expanded top

DETAILED DESCRIPTION OF THE INVENTION

FIG. 6A shows one embodiment of the present invention. Retainer 42 is configured to be attached to the bed of a pickup truck. It has a hollow interior which receives slide 40 so that slide 40 may slide fore and aft within the hollow receiver. The slide features an upstanding foot 44 on its forward extreme and handle portion 62 on its rearward extreme. A user may grasp the handle portion and pull it rearward. This action pulls foot 44 rearward. The foot will then come in contact with cargo within the bed of the pickup truck and urge it rearward. The reader will observe that the retainer includes a slot opening upward. This allows the passage of foot 44, as will be described in more detail subsequently.
FIG. 6B shows a pair of cargo pullers 38 attached to bed 12 of a pickup truck. The cargo pullers are preferably situated in the voids lying between the upstanding ribs on the deck of the pickup truck bed. Handle portions 62 may be grasped by a user and pulled toward the rear. This will cause each foot 44 to travel toward the rear, thereby propelling cargo rearward to a point where the user can grasp the cargo directly.
FIG. 7 shows cargo puller 38 with slide 40 pulled rearward. The reader will observe how foot 44 has traveled rearward almost to the end of the retainer. Cross pins or other suitable retaining devices can be used to ensure that slide 40 cannot be removed from retainer 44. These may be omitted in some embodiments, as it may at times be desirable to remove the slide.
Of course, those skilled in the art will know that current pickup truck owners rarely leave the bed exposed. Instead, the bed is typically covered by a separate bed liner. These bed liners are corrugated plastic components. FIG. 8 shows a sectional elevation view through such a bed liner. The present invention can be attached to a bed liner using conventional mechanical fasteners, adhesives, or other suitable means. FIG. 8 shows another approach. It is convenient to make retainer 42 as an extrusion. Thus, it is possible to add features which can then mechanically interlock with a bed liner.
The upper view in FIG. 8 shows the extruded profile of retainer 42. A bounding side wall creates the internal cavity, which opens upward through slot 48. It is preferable to positively retain the slide within the retainer. This can he accomplished in many ways. One way is to include one or more overhangs 46, which lie over the top of the slide and prevent it from escaping upwards. The profile can also include a pair of protruding flanges 50. The reader will observe in the lower view of FIG. 8 how the bed liner can be formed to encompass and entrap flanges 50. The retainer(s) can actually be added to the bed liner as the bed liner is made, or the bed liner can include features which allow the retainer(s) to be easily installed subsequently.
Of course, a different profile for the retainer may be preferred for those instances where the retainer is to be bolted directly to the deck of the pickup truck bed. FIG. 9 shows an embodiment with a different section for the slide and for the retainer. Retainer 42 is provided with a pair of flanges 52 near its lower extreme. These flanges allow attachments 54 to be made to deck 28. The attachment could be made by any suitable means, including bolts, rivets, a mechanical interlock, welding, etc.
A simple rectangular cavity is used in this embodiment. Of course, a corresponding rectangular profile for slide 40 is used as well. Other features can be added, such as debris channel in the bottom of the retainer which would allow the accumulation of debris without jamming the slide.
The reader will observe in FIGS. 8 and 9 that the top of the retainer preferably lies even with or below the top of the ribs (whether the ribs are part of the deck or part of a bed liner). While not essential to the operation of the invention, this feature allows cargo to be easily moved over the top of the retainer and slider.
It is important that the user be able to grip the handle portion of the slide. In some embodiments, the slide may not extend beyond the rear of the retainer when the device is in the stowed position. Thus, the addition of gripping features to the handle portion will increase the device's utility. FIG. 10 shows the addition of gripping feature 56 to the handle portion. The gripping feature can assume many forms, such as a cavity, a through-hole, a raised bump (as shown), a knurled section, a scalloped section, combinations of these, etc. The gripping feature or features allow a user to engage the slide with a finger or thumb and urge it rearward to the point where it can be grasped with the entire hand. A raised portion (such as a bump) could be substituted for the through hole.
FIG. 11 shows another type of gripping feature. The handle portion of the slide is equipped with pivot joint 58 which allows pivoting handle 60 to pivot upward. FIG. 12 shows pivoting handle 60 after it has been pivoted up 90 degrees. It provides a perpendicular grip which the user may grasp with one or both hands and pull the slide in the direction indicated by the arrow.
In some situations having a rigid foot 44 can cause problems. FIG. 13 shows another embodiment in which foot 44 pivots with respect to retainer 42. Foot 44 pivots about foot pivot joint 66. When in the raised position, foot 44 is prevented from further rotation by interference with pin 68. The raised foot may thereby be used to engage objects within the bed and urge them toward the rear. In the upper view foot 44 is pivoted upward into a position where it is ready to engage cargo within the bed. In the lower view it is pivoted downward to lie flush with the slide.
The pivoting of the foot in this embodiment can be accomplished by any suitable means. However, since an object of the invention is to eliminate the need to reach into the forward portion of the bed, it is desirable to provide a mechanism which the user can actuate near the rear of the slide in order to deploy and collapse the pivoting foot. One such mechanism would be an actuating rod passing through the middle of the slide. Alternatively, features could be added to the forward portion of retainer 42 to engage and deploy the pivoting foot.
There are of course a variety of different approaches to implementing the present invention. Those skilled in the art will appreciate that the embodiments shown in FIGS. 6-13 have a tendency to trap dirt and debris within retainer 42 (since it incorporates a slot which opens upward). This tendency may be reduced by inverting the stationary and moving components of the design. FIGS. 13A and 13B show this alternative.
In FIG. 13A, retainer 42 assumes a completely different form. It has a horizontally oriented base 72 which attaches to the bed or bedliner of the pickup truck. The orientation of FIG. 13A is looking from the tailgate end of the bed toward foot 44. It is not a true elevation view but rather a perspective view, since the vantage point is slightly above the bed.
A vertical upright 74 protrudes upward from the horizontal base 72 of retainer 42. Expanded top 76 is located near the top of upright 74, creating a total shape that is reminiscent of a railroad rail. Slide 40 slides over and engages retainer 42. Although gravity will tend to hold the slide in position, it is preferable to include mechanical interlocking features so that it does not come loose. A pair of overhangs 46 is provided. These interfere with expanded top 76 if slide 40 is urged upward with respect to retainer 42.
Foot 44 is provided on the end of the slide lying next to the cab, as for the other embodiments. The foot can be a folding or fixed type. A folding or fixed handle may be provided on the opposite end.
Clearance between retainer 42 and slide 40 is preferably provided so that dirt and debris which does come to rest between the two components will not significantly impair the sliding action of the device. The reader will note that gap 70 exists between the upstanding ribs 26 of the pickup bed and the upper surface of slide 40. In this configuration, the weight of the cargo within the bed rests on the bed itself and not the slide. Only foot 44 sticks up far enough to engage the cargo.
Of course, it may be preferably in some embodiments to have the cargo rest on the slide itself. FIG. 13B shows this option, in which the upper surface of slide 40 rests well above the top of the ribs of the pickup truck bed (FIG. 13B is another perspective view looking from the tailgate end of the bed, with the vantage point being just above the level of the bed). This can be accomplished by mounting retainer 42 on top of one or more ribs 26 (as shown) or by mounting the retainer in between the ribs but making the slide tall enough to protrude above the ribs. Whichever approach is used, the weight of cargo in the bed will actually rest upon the slide. For such an embodiment, the components will need to be made of strong and durable materials—such as extruded aluminum. It may even be desirable to provide linear bearings to reduce friction between retainer 42 and slide 40. As such components are well understood in the art, they have not been illustrated in the drawing views.
The invention can be created using a variety of materials and manufacturing methods. As mentioned previously, it is convenient to make the retainer as an extrusion. Aluminum is therefore a good choice for this component. Aluminum could also be used to make the slide. Another possibility is using pultruded fiberglass (a fiber reinforced plastic in which the strands run parallel to the long axis of the part). Where strength is not critical, one could even use fiber reinforced thermoplastics for all the components.
Although the preceding description contains significant detail, it should not he construed as limiting the scope of the invention but rather as providing illustrations of the preferred embodiments of the invention. The inventive device could he realised in many different ways. Thus, the scope of the invention should be fixed by the following claims rather than the examples given.

Claims

1. A method of moving cargo within the bed of a pickup truck, said bed being bounded by a front wall, a tail gate, and a deck, with a plurality of parallel ribs on said deck forming a plurality of voids therebetween, comprising:

a. providing a retainer attached to said pickup truck, with said retainer extending along substantially all of a length of said bed of said pickup truck, said retainer having a forward portion proximate said front wall and a rearward portion proximate said tail gate;

b. providing a slide slidably engaged with said retainer and movable between a forward position and a rearward position, said slide including

i. a first end having a foot protruding upward,

ii. a second end having a handle portion,

iii. wherein when said slide rests in said forward position said slide has a length sufficient so that said foot lies proximate said front wall of said bed and said handle portion lies proximate said tail gate of said bed, with said slide being engaged to said retainer along substantially all of said length of said slide;

c. providing a piece of cargo lying between said foot and said tail gate; and

d. pulling said handle portion in a rearward direction in order to move said slide and said foot rearward, thereby moving said piece of cargo rearward.

2. A cargo moving method as recited in claim 1 wherein said retainer is entirely contained within said voids between said parallel ribs in said bed so that no portion of said retainer protrudes above said parallel ribs.

3. A cargo moving method as recited in claim 1, wherein said slide is engaged with said retainer by an overhang in said retainer.

4. A cargo moving method as recited in claim 1, wherein said slide is engaged with said retainer by an overhang in said slide.

5. A cargo moving method as recited in claim 1, wherein said handle portion of said slide includes a gripping feature.

6. A cargo moving method as recited in claim 1, wherein said handle portion includes a pivot joint allowing said handle portion to pivot upward with respect to said slide.

7. A cargo moving method as recited in claim 1, wherein said foot includes a pivot joint allowing said foot to be folded down.

8. A cargo moving method as recited in claim 1, wherein said retainer is attached to said bed by a plurality of mechanical fasteners.

9. A cargo moving method as recited in claim 1, wherein said retainer is attached to said bed by adhesive.

10. A method of moving cargo within the bed of a pickup truck, said bed being bounded by a front wall, a tail gate, and a deck, with a plurality of parallel ribs on said deck forming a plurality avoids therebetween, comprising:

b. providing a slide lying above said retainer, said slidably engaged with said retainer and movable between a forward position and a rearward position, said slide including

i. a first end having a foot protruding upward,

ii. a second end having a handle portion,

c. providing a piece of cargo lying between said foot and said tail gate; and

11. A method of moving cargo as recited in claim 10 wherein said retainer is entirely contained within said voids between said parallel ribs in said bed liner so that no portion of said retainer protrudes above said parallel ribs.

12. A method of moving cargo as recited in claim 10, wherein said slide is engaged with said retainer by an overhang in said retainer.

13. A method of moving cargo as recited in claim 10, wherein said slide is engaged with said retainer by an overhang in said slide.

14. A method of moving cargo as recited in claim 10, wherein said handle portion of said slide includes a gripping feature.

15. A method of moving cargo as recited in claim 10, wherein said handle portion includes a pivot joint allowing said handle portion to pivot upward with respect to said slide.

16. A method of moving cargo as recited in claim 10, wherein said retainer is attached to said bed liner by a plurality of mechanical fasteners.

17. A method of moving cargo as recited in claim 10, wherein:

a. said retainer includes a vertically extended upright with an expanded top;

b. said slide includes a pair of overhangs with a gap therebetween, wherein said gap is wide enough to allow the passage or said upright therebetween but narrow enough to prevent the passage of said expanded cop therebetween.

18. A. method of moving cargo as recited in claim 17 wherein said retainer is entirely contained within said voids between said parallel ribs in said bed liner so that no portion of said retainer protrudes above said parallel ribs.

19. A method of moving cargo as recited in claim 17, wherein said retainer includes a base and said overhangs are positioned to rest on top of said base.

20. method of moving cargo as recited in claim 17, wherein said handle portion of said slide includes a gripping feature.