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US 2022/0178191 A1Published application
Dump Truck Tailgate Lifting Assist Devices
OwnerR.G. Charles Hammondinventor
Life of this patent
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Abstract
A tailgate lifting apparatus is provided that includes: a first cog, a second cog, and a housing fixedly attached to a dump body. Preferably, the first cog is fixedly attached to a lower hinge pin of the tailgate, the second cog is rotatably coupled to the housing, and the second cog meshes with the first cog. The housing includes a ratcheting mechanism that selectively engages the second cog, the device therewith operable therewith to maintain the tailgate in a plurality of positions between a fully opened and fully closed positions.
Claims20
A tailgate lifting apparatus comprising:
- a first cog, wherein the first cog is fixedly attached to a lower hinge pin of the tailgate;
- a second cog, wherein the second cog meshes with the first cog;
- and
- a housing fixedly attached to a dump body, wherein the second cog is rotatably coupled to the housing, wherein the housing comprises a ratcheting mechanism that selectively engages the second cog, the device therewith operable to maintain the tailgate in a plurality of positions between a fully opened and fully closed positions.
1 more element
A tailgate lifting apparatus comprising:
- a first cog, wherein the first cog is fixedly attached to a lower hinge pin of the tailgate;
- a second cog, wherein the second cog meshes with the first cog;
- a housing fixedly attached to a dump body, wherein the second cog is rotatably coupled to the housing, wherein the housing comprises a ratcheting mechanism that selectively engages the second cog, the device therewith operable to maintain the tailgate in a plurality of positions between a fully opened and fully closed positions,
- wherein the second cog has a diameter larger than a diameter of the first cog,
- wherein the housing includes a box section and wherein the second cog is located within and supported at a front and rear of the cog by the box section and a shaft passing through the box section, the shaft essentially parallel to the axis of the tailgate lower hinge pin;
- a pawl functionally attached to the housing, wherein the pawl selectively engages teeth on the second cog to prevent the second cog from rotating in an opposite direction from a direction for lifting the liftgate;
- and
- a ratcheting rod coupled to the pawl, the ratcheting rod operable to disengage the pawl from the second cog.
5 more elements
Dependencies are inferred from the claim text.