[특허]Trailer hitch tow bar assembly

[미국특허] Trailer hitch tow bar assembly 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60D-001/50 B60D-001/00
출원번호	US-0701195 (2003-11-04)
발명자 / 주소	Wilson,Paul
출원인 / 주소	Wilson,Paul
인용정보	피인용 횟수 : 16 인용 특허 : 11

초록

The invention is a tow bar assembly used for towing trailers with vehicles. The tow bar assembly is located between the vehicle and the hitch assembly, such as a ball mount hitch assembly.

대표청구항 ▼

What is claimed is: 1. A tow bar assembly for a vehicle comprising: a pivot joint having a first member pivotally engaging a second member, pivot openings in the first and second members, and a pivot pin extending through the pivot openings; first and second spring brackets being attached to one side of the pivot joint, the first spring bracket attaching to the first member, and the second spring bracket attaching to the second member; a spring being located between the first and second spring brackets and attached thereof; a pivot lock; and wherein the pivot lock temporarily prevents the pivot joint from pivoting, and the pivot joint pivots vertically. 2. A tow bar assembly for a vehicle of claim 1, wherein the pivot lock further comprises: gauge openings in the first and second members; and a gauge pin inserted through the gauge openings. 3. A tow bar assembly for a vehicle of claim 1, wherein the spring is a mechanical spring. 4. A tow bar assembly for a vehicle of claim 1, wherein the spring is a compressible fluid spring. 5. A tow bar assembly for a vehicle of claim 4, further comprising: a shock absorber attached to the first and second members opposite the spring. 6. A tow bar assembly for a vehicle of claim 1, further comprising: a hitch assembly fastened to a first end of the pivot joint. 7. A tow bar assembly for a vehicle of claim 6, further comprising: a receiver matingly engaging the pivot joint at a second end opposite the hitch assembly. 8. A tow bar assembly for a vehicle comprising: a first member having a tongue; a second member having a slot; a pivot joint having the slot pivotally engaging the tongue; a spring attaching to the first member and the second member; pivot openings in the tongue and the second member; a pivot pin extending through the pivot openings; a pivot lock comprising gauge openings in the tongue and second member, and a gauge pin inserted through the gauge openings; and wherein the pivot lock temporarily prevents the pivot joint from pivoting, and the pivot joint pivots vertically. 9. A tow bar assembly for a vehicle of claim 8, wherein the spring is a mechanical spring. 10. A tow bar assembly for a vehicle of claim 8, further comprising: a hitch assembly fastened to a first end of the pivot joint. 11. A tow bar assembly for a vehicle of claim 10, further comprising: a receiver matingly engaging a second end of the pivot joint opposite the hitch assembly. 12. A tow bar assembly for a vehicle comprising: a first member having a tongue; a second member having a slot; a pivot joint having the slot pivotally engaging the tongue; a spring attaching to the first member and the second member; pivot openings in the tongue and the second member; a pivot pin extending through the pivot openings; a pivot lock; wherein the pivot lock temporarily prevents the pivot joint from pivoting, and the pivot joint pivots vertically; and wherein the spring is a compressible fluid spring. 13. A tow bar assembly for a vehicle of claim 12, further comprising: a shock absorber attached to the first member and the second member opposite the compressible fluid spring.

이 특허에 인용된 특허 (11) 인용/피인용 타임라인 분석

Rau Willy (Weilheim DEX) Taus Christian (Kirchheim DEX), Arrangement for coupling a cultivating attachment to a cultivating machine.
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Kerst Gerrit (Transvaal ZAX) Kerst Hendrik (Transvaal ZAX), Coupling.
상세보기
Lovell Robert (199 Parramatta Rd. Homebush ; New South Wales AUX) Vanos Robert (199 Parramatta Rd. Homebush ; New South Wales AUX 2140), Flexible towing hitch.
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Charles J. MacKarvich, Force responsive trailer hitch.
상세보기
Logan Jeff ; Turner John, Shock absorbing trailer hitch.
상세보기
Logan Jeffrey D. ; Turner John W., Shock absorbing trailer hitch assembly.
상세보기
Stead Terence C. (Kent GBX) Stead Gary J. C. (Kent GBX) Joyce Peter (Kent GBX), Tow bar for a trailer.
상세보기
Jacks Donald E. (2826 W. Cook Rd. Ft. Wayne IN 46808), Trailer hitch.
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Smith Philip E., Trailer hitch apparatus.
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Jensen Gary Lee (41 W. Main St. Box 24 Trenton UT 84338), Trailer system.
상세보기
Van Vleet Robert D., Two way cushioning trailer hitch.
상세보기

이 특허를 인용한 특허 (16) 인용/피인용 타임라인 분석

Provost, Mark, Adjustable hitch.
상세보기
Siegel, Theodore Joseph, Articulating coupler.
상세보기
Hill, Curt J., Dual hitch receivers with drawbar.
상세보기
Waldner, David, Hitch mounting.
상세보기
Frazier, John Rodger, Hitch ornament display base.
상세보기
Strassman, David R.; Fabick, Jeré, Hitch-mounted cargo lift for personal mobility device.
상세보기
Monostori, Michael; Monostori, Tracy, Quick change vehicle trailer hitch adapter.
상세보기
Rehme,Mark L., Shock absorbing trailer hitch.
상세보기
Rehme,Mark L., Shock absorbing trailer hitch.
상세보기
Lancaster, Scott J., Side-handle receiver winch mount.
상세보기
Marcy, Dewey R., Spring and pendulum system for shock attenuation in trailer hitches.
상세보기
Hesse, Jay; Lewis, Steven R.; Culbertson, Brent, Torsionally-biased, shock-absorbing fifth wheel hitch.
상세보기
McGinnes, Joseph John, Towing link assembly.
상세보기
Giannatti, Nicholas D; Chepla, Ryan William; Breeden, III, Winston, Trailer hitch coupler.
상세보기
Cotnoir, Thierry; Charlebois, Eric; Robillard, Pierre-Luc, Trailer hitch for a vehicle having a single rear wheel.
상세보기
Baldwin, Amber, Trailer hitch with boot pulling feature.
상세보기

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Trailer hitch tow bar assembly 원문보기