Abstract: The invention relates to a drive device in vehicle component, comprising an electric drive motor, the armature shaft thereof being connected to a gearbox device for driving an output shaft. The gearbox device comprises at least one double gearbox unit, made of two gear stages having two changes in direction.

Abstract: A tailgate dampening system for a vehicle including a tailgate lift assist system including a torque rod rotationally grounded between the tailgate at a first end and a first side of the vehicle's frame at a second end is disclosed. The dampening system includes a coupling shaft attached to one end of the torque rod, a bell crank arm attached to the coupling shaft, and a dampening strut attached between the vehicle's frame and the bell crank arm. The crank arm compresses the dampening strut as the crank arm is rotated by the torque rod through the coupling shaft as the torque rod is twisted in response to the tailgate being opened, so as to reduce the rate at which the tailgate falls.

Abstract: A tailgate assembly for connection to a vehicle body includes a first panel portion configured for hinged connection to the vehicle body, as well as a second panel portion hinged to the first panel portion. The second panel portion is configured to be pivoted from a first position in which the second panel portion is generally parallel with the first panel portion to a second position in which the second panel portion is generally perpendicular to the first panel portion to reduce a first height of the tailgate. In some embodiments, the tailgate assembly further includes a third panel portion hinged to the second panel portion and configured to be pivoted between a stowed position in which the third panel portion extends generally parallel with the second panel portion and a use position in which the third panel portion extends generally perpendicular to the second panel portion.

Abstract: A pickup truck tailgate assembly is provided that includes a primary tailgate adapted to pivotally latch to a pickup cargo box and has an opening formed in the central portion thereof. The assembly also includes a secondary tailgate pivotally attached to the primary tailgate in the central opening. The assembly further includes a pivoting connection connecting the secondary tailgate to the primary tailgate so that a secondary tailgate may pivot downward relative to the primary tailgate. The secondary tailgate may further be deployed to form a step for access to the cargo box and may provide a gate for retaining items within the cargo box.

Abstract: An apparatus for increasing the cargo capacity of a pickup truck cargo bed area is disclosed. The apparatus has a base plate attached to the interior side of the tailgate of the pickup truck. A flat rectangular end-wall plate is pivotally attached the base plate. The end-wall plate has pivotally attached sidewall plates that fold, with the end-wall plate, onto the base plate. The truck cargo area is provided with adjustable mounting brackets to secure the sidewall plates to the truck cargo bed area when the apparatus is deployed for use. The apparatus may be folded and secured on the tailgate when it is not in use and unfolded and attached to the sidewall mounting brackets for deployment and use.

Abstract: A magnetic strip device attached across the end of a pick-up truck bed in order to capture loose ferrimagnetic items such as nails, screws, and the like, is herein disclosed. While primarily envisioned for use on pickup trucks, the device can also be used on vans, mini-vans, SUV's, panel trucks, trailers, and other vehicles that are used for hauling and delivering various materials. The device may be mounted to a vehicle using the magnetic attraction of the device or installed in a more permanent manner using threaded fasteners. The device will greatly reduce, if not eliminate loose metallic items from falling off the vehicle and possibly resulting in a safety hazard.

Abstract: A vehicle includes a tailgate, a panoramic roof assembly and a dual-action rear hatch. The panoramic roof assembly has a plurality of positions including a closed position and a raised position. The dual-action rear hatch has a sliding mode wherein the hatch is movable from a closed position to a slide forward position wherein the rear hatch is received under the roof assembly when in the raised position, and has a flip-open position wherein the rear hatch is flipped-open while in a slide closed position.

Abstract: A tailgate assembly for a vehicle includes a multi-piece frame. The multi-piece frame includes a left frame assembly, a right frame assembly, an upper frame member and a lower frame member. The upper frame member and lower frame member extend laterally along a respective top section and a bottom section of the frame for interconnecting the left and right frame assemblies. The multi-piece frame defines a generally continuous closed boxed structure which extends about a periphery of the multi-piece frame.

Abstract: A foldable, thin plate seat frame that is permanently built-in to the tailgate of a pickup truck or sport utility vehicle. The device comprises a foldable bench seat, having a bottom seat plate and a back support plate. The device is built-in to a tailgate along its interior side and folds flush thereagainst, locking into place such that a user does not need to uninstall the device when in a stowed position. Cushions can be attached to the extended seat frame when the device is in a working position for added comfort. The seat frame folds about a hinge that separates the bottom seat plate and the back rest plate of the device. When the seat is in the open configuration, the seat frame hinge rests above the jamb of the open tailgate such as to not interfere with the tailgate's ability to open or close.

Abstract: The truck bed extender (10) has three panels (12, 26a, 26b) removably attached to the edge of the vehicle tailgate (G) and the rear portions (LR, RR) of the cargo box sidewalls (LW, RW). The deployed extender (10) increases the vehicle capacity and efficiency. The side panels (26a, 26b) fold against the inner surface of the primary panel (12) and the primary panel (12) folds against the inner surface of the tailgate (G) for compact storage of the assembly. The panel assembly (10) may be quickly and easily removed from the permanently installed hinges (14a, 14b) on the vehicle tailgate (G). The extender assembly (10) may be deployed, stored, removed, and installed without tools, once the primary panel hinges (14a, 14b) and side panel attachment brackets have been installed on the vehicle.

Abstract: A multi-position tailgate retaining and counterbalancing apparatus and method is disclosed. The apparatus maintains the look and functionality of a conventional tailgate for a pickup truck. The apparatus and methods may include a counterbalance reducing the effort required to lift or lower the tailgate. The apparatus and methods may allow the counterbalanced tailgate to be lowered to, and automatically stop at the standard open position like a conventional tailgate. Moreover, by pulling and releasing the tailgate release latch handle, the tailgate may be lowered further to a fully open position. Upon reaching this lower, fully open position, the tailgate may automatically stop. The apparatus and methods may also provide a counterbalanced tailgate that secures at multiple predetermined positions between the closed and fully open positions, each such position retaining the tailgate's full load carrying capacity.

Abstract: A vehicle endgate hinge assembly is disclosed. The hinge assembly has a bodyside hinge strap including a hinge support boss extending through the endgate opening shut-face and having a central hole that is coaxial with the endgate pivot axis, a mounting plate located outboard of the shut-face, and a threaded portion extending from the mounting plate through the shut-face. The hinge assembly may have a crank including a hinge key pivotally coupled to a member mounted on the endgate, a pivot shaft extending from the hinge key through the central hole, a lever arm extending from the pivot shaft normal to the endgate pivot axis, and a ball extending from the lever arm spaced from the endgate pivot axis. A nut is located inboard of the endgate opening shut-face and threadably received on the threaded portion, and an energy storage mechanism is coupled to the ball.

Abstract: A method and apparatus for adjusting the location of suspension for a tailgate is disclosed. The method may include selecting a vehicle comprising first and second sides, a tailgate, and at least one tailgate support. The tailgate may be connected to pivot with respect to the first and second sides through a range of motion. The at least one tailgate support may have a base and an array pivotably connected to the base. The base may engage the tailgate. The array may engage the first side and comprise first and second engagement mechanisms. The method may further include disengaging the first engagement mechanism from the first side, pivoting the array with respect to the base, and effecting an engagement between the second engagement mechanism and the first side. By switching from the first engagement mechanism to the second engagement mechanism, the location of suspension for the tailgate may be adjusted.

Abstract: A rear pillar of an automotive vehicle housing a power tailgate assembly and a garnish covering the rear pillar. The garnish includes an opening through which a tailgate rod extends and interconnects the power tailgate assembly and the tailgate of the automobile. A cover closes the opening and comprises an elongated body of a resilient material including an upper region having a passage sized to accommodate the tailgate rod and lower region having a “T” shaped slot intersecting the passage.

Abstract: A deployment assembly 16 which selectively and efficiently allows entry and exit into and from the bed 12 of a selectively movable assembly and which includes a plurality of independently movable stair assemblies 202, 204, 206 which may be respectively extended and retracted and then placed in a stored upright position to cooperatively form a tailgate.

Abstract: A cover assembly for a motor vehicle having a pair of spaced apart sidewalls. The cover assembly includes a track formed in each sidewall and a panel. A first leg of each track is arranged substantially orthogonal to a floor of the vehicle and a second leg of each track is positioned above the floor and extends from the first leg. The panel is movably coupled to the tracks.

Abstract: A vehicle storage assembly of a vehicle includes a deployable and retractable shelf member connected to a tailgate of the vehicle. In a deployed configuration, the shelf member is supported spaced-above the tailgate to provide a horizontal support surface with the tailgate in an open position and the shelf member is supported spaced horizontally from the tailgate to provide a sidewall of a storage compartment with the tailgate in a closed position.

Abstract: A method and apparatus for adjusting the location of suspension for a tailgate is disclosed. The method may include selecting a vehicle comprising a first side, a second side, a tailgate, and at least one tailgate support. The tailgate may be connected to pivot with respect to the first and second sides through a range of motion. The at least one tailgate support may have a first end connected to the first side, a second end connected to tailgate, and an adjustor positioned between the first and second ends. The method may further include actuating or manipulating the adjustor to change the length under tension of at least one tailgate support. By changing this length, the location of suspension for the tailgate may be adjusted.

Abstract: A method and apparatus for adjusting the location of suspension for a tailgate is disclosed. The method may include selecting a vehicle comprising a first side, a second side, a tailgate, and at least one tailgate support. The tailgate may be connected to pivot with respect to the first and second sides through a range of motion. The at least one tailgate support may have a first end connected to the first side, a second end connected to tailgate, and an adjustor positioned between the first and second ends. The method may further include actuating the adjustor to change the length under tension of at least one tailgate support. By changing this length, the location of suspension for the tailgate may be adjusted.

Abstract: A method and apparatus for adjusting the location of suspension for a tailgate is disclosed. The method may include selecting a vehicle comprising a first side, a second side, a tailgate, a tailgate support, and an adjustor. The tailgate may be connected to pivot with respect to the first and second sides through a range of motion. The adjustor may include a base and a traveler configured to move with respect to the base. The base may be positioned on, and fixed with respect to, one of the tailgate and a first side of the vehicle. When the base is positioned on the tailgate, the tailgate support may extend to connect the traveler to the first side of the vehicle. Alternatively, when the base is position on the first side of the vehicle, the tailgate support may extend to connect the traveler to the tailgate. In either configuration, by manipulating the position of the traveler with respect to the base, the location of suspension for the tailgate may be adjusted.

Abstract: A method for lowering a tailgate is disclosed. The method may include selecting a vehicle comprising a first side, a second side, a tailgate, and a first tailgate support. The tailgate may be connected to pivot with respect to the first and second sides through a range of motion. The first tailgate support may have a first end connected to the first side and a second end connected to tailgate. The method may further include detaching the first end of the first tailgate support from first side of the vehicle. Once a first extension link is selected, the first end of the first tailgate support may be connected to the first extension link. The first extension link may be connected to the first side. Once installed, the extension link may effectively lengthen the tailgate support, permitting the tailgate to hang lower than ninety degrees from its closed position.

Abstract: The present invention provides an assembly for extending the bed of a pickup truck, having a hitch receiver and a down folded tailgate past the end of tailgate and providing a ramp function. By supporting the assembly by both an attachment to the hitch receiver and supporting the assembly on the down folded tailgate the assembly can support more weight and at greater distances and angles the previous bed extenders and ramp combinations.

Abstract: A passenger vehicle is provided with a body having an interior with a passenger compartment and a rear cargo region accessed through a rear opening. A liftgate and tailgate are pivotally coupled to the body at an upper and lower periphery of the opening respectively, and engage one another to enclose the opening. The liftgate and tailgate each enclose a portion of the opening in a closed position and provide access to the rear cargo area in an open position. A passenger vehicle is provided with a vehicle body having an interior and a rear opening with a first and second region facing generally upwards and rearwards respectively, both regions providing access to the rear cargo area. A rear closure assembly encloses the opening, provides access to the rear cargo area, and has first and second members pivotally connected to the body to enclose the first and second regions respectively.

Abstract: A tailgate control mechanism used to exert a force on a pivot. The tailgate may include a pivoting main body and a pivot fixed to a truck bed, where the main body may move about the pivot. The tailgate may also include a piston element including a first end connected to the pivot and a second end connected to the main body. The second end may be positioned above the first end when the main body is in a closed position. The piston element may also be configured to provide a counter force to balance the weight of the tailgate. The piston element may also be retrofitted.

Abstract: A method and apparatus for adjusting the location of suspension for a tailgate is disclosed. The method may include selecting a vehicle comprising first and second sides, a tailgate, and at least one tailgate support. The tailgate may be connected to pivot with respect to the first and second sides through a range of motion. The at least one tailgate support may have a base and an array pivotably connected to the base. The base may engage the tailgate. The array may engage the first side and comprise first and second engagement mechanisms. The method may further include disengaging the first engagement mechanism from the first side, pivoting the array with respect to the base, and effecting an engagement between the second engagement mechanism and the first side. By switching from the first engagement mechanism to the second engagement mechanism, the location of suspension for the tailgate may be adjusted.

Abstract: A tailgate topper for a pickup truck tailgate has a transverse horizontally extending cross-bar supported by a pair of vertically movable support members which allow positioning of the cross-bar at a desired height above the tailgate. A plurality of upwardly biased popup blocks are disposed below said cross-bar within the tailgate so exert pressure upwardly against cargo extending between the cross-bar and the popup block.

Abstract: A method and apparatus for adjusting the location of suspension for a tailgate is disclosed. The method may include selecting a vehicle comprising a first side, a second side, a tailgate, a tailgate support, and an adjustor. The tailgate may be connected to pivot with respect to the first and second sides through a range of motion. The adjustor may include a base and a traveler configured to move with respect to the base. The base may be positioned on, and fixed with respect to, one of the tailgate and a first side of the vehicle. When the base is positioned on the tailgate, the tailgate support may extend to connect the traveler to the first side of the vehicle. Alternatively, when the base is position on the first side of the vehicle, the tailgate support may extend to connect the traveler to the tailgate. In either configuration, by manipulating the position of the traveler with respect to the base, the location of suspension for the tailgate may be adjusted.

Abstract: A method and apparatus for adjusting the location of suspension for a tailgate is disclosed. The method may include selecting a vehicle comprising a first side, a second side, a tailgate, and at least one tailgate support. The tailgate may be connected to pivot with respect to the first and second sides through a range of motion. The at least one tailgate support may have a first end connected to the first side, a second end connected to tailgate, and an adjustor positioned between the first and second ends. The method may further include actuating the adjustor to change the length under tension of at least one tailgate support. By changing this length, the location of suspension for the tailgate may be adjusted.

Abstract: A method and apparatus for adjusting the location of suspension for a tailgate is disclosed. The method may include selecting a vehicle comprising a first side, a second side, a tailgate, and at least one tailgate support. The tailgate may be connected to pivot with respect to the first and second sides through a range of motion. The at least one tailgate support may have a first end connected to the first side, a second end connected to tailgate, and an adjustor positioned between the first and second ends. The method may further include actuating or manipulating the adjustor to change the length under tension of at least one tailgate support. By changing this length, the location of suspension for the tailgate may be adjusted.

Abstract: A tailgate damping and detent system is disclosed for a vehicle, including a tailgate lift assist system with a torque rod rotationally grounded between the tailgate at a first end and a first side of the vehicle's frame at a second end. “Damping” is achieved by increasing the diameter of the torque rod. The increased torque rod diameter overcompensates for the weight of the tailgate, so that this increased load decelerates the tailgate starting from the neutral balance point to the fully open position. The speed of the tailgate approaches zero at the end of the travel of the tailgate to the fully open position, which greatly reduces the “slam” at the end of travel. The tailgate is held in the open position by a link detent system. There is a slot in the gate side of the link that a spring loaded pin latches into.

Abstract: A method for lowering a tailgate is disclosed. The method may include selecting a vehicle comprising a first side, a second side, a tailgate, and a first tailgate support. The tailgate may be connected to pivot with respect to the first and second sides through a range of motion. The first tailgate support may have a first end connected to the first side and a second end connected to tailgate. The method may further include detaching the first end of the first tailgate support from first side of the vehicle. Once a first extension link is selected, the first end of the first tailgate support may be connected to the first extension link. The first extension link may be connected to the first side. Once installed, the extension link may effectively lengthen the tailgate support, permitting the tailgate to hang lower than ninety degrees from its closed position.

Abstract: A tailgate gap cover for covering a gap between two adjacent surfaces includes an elongated top member where the top member has a generally arcuate T-shaped cross-sectional profile. An elongated concave relief central portion extends lengthwise along the center of the top member. An elongated insertion panel is affixed to a central bottom portion of the top member, where the elongated insertion panel extends downwardly substantially perpendicular from the top member.

Abstract: A multi-position tailgate retaining and counterbalancing apparatus and method is disclosed. The apparatus maintains the look and functionality of a conventional tailgate for a pickup truck. The apparatus and methods may include a counterbalance reducing the effort required to lift or lower the tailgate. The apparatus and methods may allow the counterbalanced tailgate to be lowered to, and automatically stop at the standard open position like a conventional tailgate. Moreover, by pulling and releasing the tailgate release latch handle, the tailgate may be lowered further to a fully open position. Upon reaching this lower, fully open position, the tailgate may automatically stop. The apparatus and methods may also provide a counterbalanced tailgate that secures at multiple predetermined positions between the closed and fully open positions, each such position retaining the tailgate's full load carrying capacity.

Abstract: A drag reduction device for a motor vehicle is provided that includes a substantially flat plate member preferably rotatably connected to a tailgate assembly. The tailgate assembly has at least one, but preferably two panels defining a cavity. The plate member can be selectively positioned at a first position and a second, third, or fourth position. When in the first position, the plate member is inside the cavity. In the second position, the plate member is substantially vertical, and partially extending outside the cavity. In the third position, the plate member is extending forward, preferably in a horizontal orientation outside the cavity. When in the fourth position, the plate member is extending rearward, preferably in a horizontal orientation outside the cavity. The plate member is of sufficient length when in the second, third, and fourth positions to thereby reduce the coefficient of drag and lift on the vehicle.

Abstract: A modular tailgate protector that is infinitely adjustable for accommodating vehicle storage beds having different widths includes a horizontal support bar having a first end, a second end, and a longitudinal axis, and a pair of vertical support columns adapted for sliding along the longitudinal axis of the horizontal support bar for adjusting the spacing between the vertical support columns. The modular tailgate protector includes locking elements coupled with the vertical support columns for selectively locking the vertical support columns at selected locations along the longitudinal axis of the horizontal support bar. The vertical support columns are insertable into stake post openings located at a rear end of a vehicle storage bed for spacing the horizontal support bar from a tailgate so that items loaded in the vehicle storage bed do not impact against the tailgate.

Abstract: A vehicle bed extender particularly adapted for ease of installation and removal. The extender includes a first side wall, a second side wall, a connecting wall, a first mount, a second mount, a first mounting station, and a second mounting station. The connecting wall, the first side wall, and the second side wall cooperate to form a generally U-shaped frame. The first mounting station and the second mounting station each comprise a stationary portion and a moveable portion configured such that the moveable portion, in a first position, cooperates with the stationary portion to engage the first mount or the second mount and to prevent disengagement. The moveable portion of the first mounting station and the second mounting station can be moved by a manual application of pressure to a second position which allows such disengagement.

Abstract: A viscous rotary damping device for a vehicle end gate assembly is provided. The damping device includes a housing member configured to operatively attach to the vehicle body or the end gate assembly. The housing member defines a fluid chamber having viscous fluid therein. The damping device also includes an impeller member having a mast with a first end configured to operatively attach to the other of the vehicle body and the end gate assembly, and a second end having one or more blades projecting outward therefrom. The second end of the mast is rotatably received in the fluid chamber such that the impeller member dissipates kinetic energy generated by the end gate assembly when transitioning between a first, closed position and a second, open position. A cover plate member is preferably coupled to the housing member, and configured to fluidly seal the fluid chamber.

Abstract: An improved vehicle cargo tailgate enclosure particularly adapted for ease of installation and removal. The tailgate enclosure comprises two side walls and a rear wall. The rear wall is configured to slope upwardly and rearwardly to provide additional storage space to a cargo bed of a vehicle. The cargo tailgate enclosure further comprises tubular members which comprise a non-circular cross section which provide exceptional strength a structural stability to the cargo tailgate enclosure. The cargo tailgate enclosure further comprises a plurality of upright members. Some of the upright members are configured to attach the cargo tailgate enclosure to a vehicle and to cap the tubular members. Other upright members are configured to support the tailgate enclosure against the surface cargo bed or a tailgate of a vehicle.

Abstract: A cargo bed management system including a storage system composed of a receptacle integrated into a sidewall of a bed of a motor vehicle and a dividing system that divides or extends a bed of the motor vehicle. The dividing system includes a main panel having a length approximately equal to a width of the bed, and a pair of side panels hingedly connected to the main panel so that the side panels may rotate relative to the main panel from a stowed position where the side panels are integral with the main panel to an extended position where the side panels extend outward from the main panel. At least one bumper is affixed to an end of each of the side panels that are hingedly connected to the main panel such that the bumper increases a length of the main panel when said the panels are in the stowed position. The bumpers compress to secure the main panel and the side panels to the bed.

Abstract: A liftgate apparatus may include a plurality of vertical tracks attached to a rear of a trailer, each of the plurality of vertical tracks including a vertical roller chain. Tops of the plurality of vertical tracks intersect horizontal hollow structural tubes which include hydraulic cylinders. The apparatus may also include at least one bar attached to a bottom of each vertical roller chain and attached to sets of rolling wheels configured to move the at least one bar vertically inside the plurality of vertical tracks and a plurality of hinges attached to a lower end of the at least one bar and attached to a base of a liftgate, wherein the vertical roller chain lifts the at least one bar and the liftgate at hinged points.

Abstract: A cargo bed extender extends the useful length of a cargo bed when the tailgate is open and has an outer shell that is attached to inner side of the tailgate. An end panel slides between the tailgate and outer shell when in a stowed position and is secured on catch hinges when in a deployed position. Side panels are attached to the end panel on hinges that allow the side panels to fold against the end panel and slide as a unit with the end panel between the tailgate and the outer shell. Outer shell end caps slide over the ends of the outer shell adding support and strengthen to the outer shell. Retainers 38 are fastened to the upper rear of the inner side of the pickup truck bed sidewalls to secure the side panel when in a deployed position.

Abstract: A motor vehicle includes a trunk, in which the trunk has a body cutout opening which can be closed off by a two-part trunk lid which is composed of an upper trunk lid and a lower trunk lid. The upper trunk lid can be pivoted downward by an angle from, in each case, one closed position into, in each case, one open position. The lower trunk lid has at least one pivot lever, which is arranged such that it can be pivoted by way of a pivot axle formed on a lower body section. In the open position of the lower trunk lid, the pivot lever is in engagement with the lower body section.

Abstract: An entry assembly comprises a frame and a gate. The frame has a first side and a second side. The gate is connected to the frame. The gate defines a demarcation between the first side and the second side of the frame. The gate is pivotable about the frame along at least two axes of rotation. Each axis of rotation intersects at least one of the at least two axes of rotation.

Abstract: A tailgate arrangement which is located in the region of the rear opening (12) of a vehicle and in the closed position borders a cargo space (16), has an upper tailgate part (18) which is coupled in the region of the upper edge (20) of the rear opening (12) and a lower tailgate part (22) which is coupled in the region of the lower edge (24) of the rear opening (12) of the vehicle and is aligned essentially horizontally in the open position. An expansion element (28) is detachably fixed on the inside of the lower tailgate part (22) and in the open position of the lower tailgate part (22) expands the cargo space (16) and closes it relative to the exterior of the vehicle.

Abstract: A pick-up truck tailgate lifter having dual hooks for gripping the bottom of the rear of the tailgate and lifting straps affixed thereto and running to the inside of the tailgate ending in a handle. One embodiment has a roll-up handle so the straps and handle fit through the space between the bed and the tailgate. The other routes the straps over the rear face of the tailgate, through a top cap and around a reversing post in the inside of the tailgate so that when lifting pressure is applied to the handle, the straps tighten the lifting hooks.

Abstract: A power operated retractable tailgate assembly for a vehicle that includes a tailgate with opposite end edges thereof connected via sliding pivots to a respective one of a pair of elongate slide rails. The slide rails mount in lateral spaced apart relation on the underside of the floor of the cargo carrying box on the vehicle. A first extendible and retractable assembly, having relatively movable respective first and second portions, has the first portion anchored to the vehicle and a second portion that is hingedly connected to the tailgate proximate a lower marginal edge thereof. A power means is operatively connected to the extendible and retractable assembly and is operable from within the cab of the vehicle selectively to extend and retract the tailgate by moving the tailgate along the slide members.

Abstract: The invention disclosed herein relates to a novel mechanism for assisting in opening and closing the lift gate on a vehicle, namely, a trailer. The lift gate assist mechanism is attached to the back of the closed lift gate and cables extend from the mechanism to a connection point on the trailer itself, allowing ease of installation on a variety of trailers. The mechanism is particularly convenient to attach as an after-market product. The mechanism comprises one or more strong outer casings having one or more concentric springs contained therein, where one end of the springs are attached to one end of the casing and the second end of the springs is attached to the bed or some other portion of the vehicle. The mechanism also provides extra strength to the lift gate to enable it to support additional weight of objects when they are rolled onto or off of the trailer. The invention also relates to the method for adding the novel lift gate assist mechanism to the lift gate on a trailer.

Abstract: A motion assist hinge mechanism includes a first and second hinge part mounted to the tailgate and vehicle body, respectively. The first hinge part includes a first cam having a sloped engagement surface engaged with a sloped engagement surface of a second cam of the second hinge part, under the bias of a resilient member, for moving axially along a pivot axis. The second cam is fixed to the vehicle body against pivotal movement relative to the pivot axis. When the tailgate is moved from a lowered, open position towards a raised, closed position, the resilient member translates a torque assisting force to the tailgate. The surface of the second cam may also include a detent that mates with the surface of the first cam to lock the tailgate at an angle.

Abstract: A tailgate control mechanism used to exert a force on a pivot. The tailgate may include a pivoting main body and a pivot fixed to a truck bed, where the main body may move about the pivot. The tailgate may also include a piston element including a first end connected to the pivot and a second end connected to the main body. The second end may be positioned above the first end when the main body is in a closed position. The piston element may also be configured to provide a counter force as the main body is lowered. The piston element may also be retrofitted.

Abstract: An automotive closure panel which is rotatable about a pivot axis has an axial locator insert situated within a pivot bearing insert bore to set a margin extending between the closure panel and a vehicle body. This system is particularly useful for closure panels such as tailgates having torsion bar or motorized lift assist, because such systems are not easily disassembled for the purpose of setting the closure panel margins.