[특허]Drawbar coupler for an automotive vehicle hitch rack

[미국특허] Drawbar coupler for an automotive vehicle hitch rack 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60R-009/10 B60D-001/58
출원번호	US-0575113 (1995-12-18)
발명자 / 주소	Van Dusen Donn S. (Loma Rica CA) Gibbs Douglas P. (Yuba City CA)
출원인 / 주소	Advanced Accessory Systems, LLC (Port Huron MI 02)
인용정보	피인용 횟수 : 28 인용 특허 : 19

초록 ▼

The invention relates generally to an automotive vehicle hitch rack and more particularly to a drawbar coupler that provides a connection to a tow hitch on an automotive vehicle. The coupler comprises a drawbar which interfaces with the tow hitch to provide opposed overlapping surfaces, and a tightener which applies force to maintain the opposed overlapping surfaces together. The invention significantly reduces play between the drawbar and the tow hitch.

대표청구항 ▼

An automotive vehicle rack for connection to a tow hitch of a vehicle, which tow hitch has a receiver, comprising the combination of: (A) article support structure for an article to be carried by the rack; (B) a coupler for connecting the rack to said tow hitch, said coupler including: (i) a drawbar that telescopes within said tow hitch receiver to provide an opposed pair of overlapping receiver and drawbar surfaces, said drawbar and tow hitch having registerable bolt holes, the relative locations of the bolt holes being such that when the drawbar is telescoped within the tow hitch receiver, at least one telescoped position exists in which the bolt hole in the tow hitch receiver is aligned with the bolt hole in the drawbar with overlapping receiver and drawbar surfaces in contact with one another; and (ii) a tightener which normally applies force to maintain said receiver and drawbar overlapping surfaces in contact with one another but selectively allows disengagement thereof, said tightener comprising: (a) a tail whose diameter is smaller than the diameter of said bolt holes; (b) a mid-section, located between a shoulder and said tail, whose diameter is also smaller than the diameter of the aligned bolt holes and which has an axis extending for its length; (c) a shoulder disposed at the end of the tightener opposite the tail, which shoulder has a diameter larger than an aligned bolt hole of the tow hitch receiver but smaller than the aligned bolt hole in the corresponding drawbar so that said shoulder can engage a first drawbar surface when said mid-section extends through said aligned bolt holes; (d) a head attached to the shoulder, which head has an exterior side surface; (e) at least one nut coupled coaxially and tightened to the tail such that when said mid-section extends through the aligned bolt holes of the overlapped receiver and drawbar, said nut engages a second coupler surface and a force is applied from the nut to said surface and a force is applied between said shoulder and the first drawbar surface to maintain the overlapped receiver and drawbar surfaces in contact with one another; (f) the diameter of the bolt hole in the tow hitch receiver aligned with a corresponding bolt hole in the drawbar being larger than said shoulder and said head to thereby form a recess within said drawbar within which said shoulder and head reside when said shoulder is in engagement with said first drawbar surface; said recess generally encompassing said exterior side surface of said head and being configured to be sufficiently closely spaced to said head exterior surface, to prevent said head exterior surface from being grasped by common removal tools; (C) an arm extending between and secured to said article support structure and said coupler.

이 특허에 인용된 특허 (19) 인용/피인용 타임라인 분석

Bott ; John A., Article carrier for automotive vehicles.
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Bott John A. (931 Lake Shore Dr. Grosse Pointe Shores MI 48236), Article carrier for automotive vehicles.
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Allsop Ivor J. (Bellingham WA) Holz Harold F. (Linden WA) Clausen Eivind (Bellingham WA), Articulated support rack for vehicles.
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Ching Bryant Y. (14565 Runnymede St. Van Nuys CA 91405), Bicycle carrying rack.
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Addicks Lyle F. (12313 Brookshire Ave. Downey CA 90242), Bicycle handle bar connector.
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Workentine Larry (Fresno CA), Cargo carrier.
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Mungons Edwin M. (5906 Cresthaven ; Apt. D-1 Toledo OH 43614), Carrier for three wheeled vehicles.
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Herman William P. (Marblehead MA), Expander nut structure for a handlebar stem.
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Van Dusen Donn S. (Loma Rica CA), Hitch rack for an automotive vehicle.
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Bott John A. (931 Lakeshore Dr. Grosse Pointe Shores MI 48236), Luggage carrier assembly.
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Bott John A. (931 Lakeshore Dr. Grosse Pointe Shores MI 48236), Luggage carrier assembly.
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Bontrager Keith (342 Morrissey Blvd. Santa Cruz CA 95062), Mechanically joined steering assembly.
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Speer William W. (1323 Eleanor Way Sunnyvale CA 94087), Receiver hitch mechanism for eliminating movement in trailer hitch receivers.
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Jay Lanny E. (723 #5 Laguna Canyon Rd. Laguna Beach CA 92651), Secure bicycle rack and carrier.
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Bott John A. (931 Lake Shore Dr. Grosse Pointe Shores MI 48236), Vehicle article carrier.
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Bott John A. (931 Lakeshore Dr. Grosse Pointe Shores MI 48236), Vehicle article carrier.
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Bott John A. (931 Lakeshore Dr. Grosse Pointe Shores MI 48236), Vehicle luggage carrier.
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Bott John A. (931 Lakeshore Dr. Grosse Pointe Shores MI 48236), Vehicle luggage rack.
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Abbott Brian (Santa Monica CA) Nusbaum Neil (Culver City CA) Nusbaum Henry (Los Angeles CA), Wobble-free trailer hitch mounting for bicycle carrier.
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이 특허를 인용한 특허 (28) 인용/피인용 타임라인 분석

Morris, James C., Adaptable trailer drawbar assembly.
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Linger Don F., Anti-rattle device for receiver-style hitch.
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Lahn, Kevin, Anti-rattle hitch assembly.
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David A. Young, Anti-rattle trailer hitch.
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Claude Grossi AU; Robert Assaf AU; Patrick Bucca AU; Paul Grossi AU, Bag and bicycle rack.
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Speer, William W.; Speer, W. Louis, Cam action tightening receiver hitch assembly.
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Dépot, Germain, Foldable carrier for a vehicle.
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Richard W. Dixon, Handle for adjustable hitch head assembly.
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McCoy, Richard W.; Adams, Katherine A., Hitch bar tightener.
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Allen, Alexander R.; Allen, Richard A., Hitch rack.
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Parent, Richard Arthur, Hitch receiver/implement threaded fastening assembly.
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Parent, Richard Arthur, Hitch receiver/implement threaded fastening assembly.
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Blakley, Michael C., Hitch securement system.
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Cole, Steven J., Hitch-mountable recreational equipment rack.
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Kolda, Clint D., Internal tightening system for preventing relative movement between a pair of interconnected members.
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O'Meara Richard Vincent, Knock-down hoist.
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Williams, Marty, Securing device for receiver hitch assemblies.
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Williams, Marty, Securing device for receiver hitch assemblies.
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Marty Williams, Securing device for receiver hitches.
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Williams, Marty, Securing device for receiver hitches.
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Parent Richard Arthur,CAX, Threaded/non-threaded split shank for hitches drawbars and the like.
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Bass, Benjamin Raymond; Weber, Ryan, Tool-less wedge-type anti-rattle mounting system for a vehicle-mounted equipment carrier.
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Cal M. Phillips, Trailer hitch quick-release drawbar.
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Church, John D., Vehicle equipment rack.
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Dean, Gregory A., Vehicle load carrier.
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Stephen J. Cole, Vehicle load carrier and clamping mechanism.
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Scott R. Allen ; Joseph J. Settelmayer, Vehicle load carrier and fastening mechanism.
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Speer William W., Wobble and rattle resistant receiver hitch.
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

[미국특허] Drawbar coupler for an automotive vehicle hitch rack 원문보기

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[미국특허] Drawbar coupler for an automotive vehicle hitch rack 원문보기

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이 특허에 인용된 특허 (19) 인용/피인용 타임라인 분석

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