Jack assembly
First Claim
1. A jack assembly for a towed vehicle, the jack assembly comprising:
- an inner tube having a correspondingly shaped inner tube bushing secured to an upper end of said inner tube;
an outer tube having a slot that runs the length of said outer tube, and a correspondingly shaped outer tube bushing secured to a lower end of said outer tube;
a jackscrew located within said inner tube, wherein said jackscrew is operatively connected to a jack nut;
a gear housing located adjacent an upper end of said outer tube;
a handle assembly connected to said gear housing, wherein rotation of said handle assembly causes said outer tube to move telescopically along said inner tube;
a pivot assembly including a pivot housing, a slide block, a pivot block, and an attachment bracket for mounting to a trailer tongue, wherein said pivot assembly is connected to said outer tube; and
a wheel assembly connected to a lower end of said inner tube.
22 Assignments
0 Petitions
Accused Products
Abstract
An improved jack assembly for use with a trailer tongue of a towed vehicle. The jack assembly including telescoping height adjustment of the assembly, a pivot assembly for pivoting between a vertical and horizontal stowed position, and a clip for maintaining a handle assembly in a stowed position when not in use. The jack assembly also includes the use of bushings for the telescoping tubes to enhance the sliding movement between the tubes and aid in maintaining the axial alignment of the tubes thereby extending the life of the jack assembly. The pivot assembly further includes an attachment bracket that may be rotated to accommodate at least two different sizes of trailer tongues.
90 Citations
22 Claims
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1. A jack assembly for a towed vehicle, the jack assembly comprising:
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an inner tube having a correspondingly shaped inner tube bushing secured to an upper end of said inner tube; an outer tube having a slot that runs the length of said outer tube, and a correspondingly shaped outer tube bushing secured to a lower end of said outer tube; a jackscrew located within said inner tube, wherein said jackscrew is operatively connected to a jack nut; a gear housing located adjacent an upper end of said outer tube; a handle assembly connected to said gear housing, wherein rotation of said handle assembly causes said outer tube to move telescopically along said inner tube; a pivot assembly including a pivot housing, a slide block, a pivot block, and an attachment bracket for mounting to a trailer tongue, wherein said pivot assembly is connected to said outer tube; and a wheel assembly connected to a lower end of said inner tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A jack assembly for a towed vehicle, the jack assembly comprising:
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an inner tube and an outer tube, wherein said outer tube is capable of telescopic movement along said inner tube and said outer tube includes a slot that runs the length of said outer tube; a bushing positioned between said inner tube and said outer tube such that a portion of said bushing is positioned between said tubes such that said tubes do not contact each other; a jackscrew located within said inner tube, wherein said jackscrew is operatively connected to a jack nut that is attached to said bushing; a gear housing located adjacent an upper end of said inner tube; a handle assembly connected to said gear housing, wherein rotation of said handle assembly causes said outer tube to move telescopically along said inner tube; a pivot assembly slidably connected to said outer tube by a slide block that is rotatably connected to a pivot block, wherein said pivot assembly includes a pivot housing and an attachment bracket for mounting to a trailer tongue; and a dual caster wheel assembly connected to a lower end of said inner tube. - View Dependent Claims (19, 20, 21, 22)
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Specification