[특허]Height adjustable coupling device with vertical cushioning

[미국특허] Height adjustable coupling device with vertical cushioning 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60D-001/50
출원번호	US-0861992 (1997-05-22)
발명자 / 주소	Van Vleet Robert D.
대리인 / 주소	Greer, Burns & Crain, Ltd.
인용정보	피인용 횟수 : 37 인용 특허 : 10

초록 ▼

An improved coupling device for connecting a towed vehicle and a towing vehicle, and includes a draw bar that is adapted to be affixed to the towing vehicle, a tube support structure connected to a distal end of the draw bar, and a tube that is movably connected to the tube support structure. Positioned within the tube are a slide bar, an upper cushion member, and a lower cushion member. The upper cushion member is seated within the tube adjacent to an upper axial end of the tube and the lower cushion member is seated within the tube adjacent to a lower axial end of the slide bar. The present invention also includes a connecting assembly that is affixed to a lower portion of the tube, where the connecting assembly consists of a connecting component configured and arranged to be removably attached to a corresponding connecting component on the towed vehicle. Further, the present coupling device preferably also includes a height adjustment assembly. The preferred embodiment of the height adjustment assembly consists of at least one set of aligned apertures on the tube support structure, located on opposite sides thereof; at least one set of aligned elongated slots on the tube, located on opposite sides thereof; and a plurality of apertures that extend through the slide bar. The tube support structure, the tube, and the slide bar are maintained at a selected height by a pin that is configured and arranged to be inserted through one set of aligned apertures on the tube support structure, one set of aligned elongated slots on the tube, and one of the plurality of apertures on the slide bar.

대표청구항 ▼

[ What is claimed is:] [1.] A coupling device for connecting a towed vehicle and a towing vehicle, said coupling device comprising:a draw bar adapted to be affixed to the towing vehicle, said draw bar having a tube support structure at an outer end portion thereof;a generally vertically moveable tube at least partially located within said tube support structure;a slide bar positioned within said tube and being moveable relative to said tube, said slide bar being adapted to be vertically adjusted relative to said tube support structure;means for releasably attaching both said slide bar and said tube to said tube support structure;means associated with said slide bar and said tube for biasing said tube against vertical movement relative to said slide bar, said biasing means permitting limited vertical movement and thereby providing a cushioning effect for said tube relative to said draw bar;a connecting assembly affixed to a lower portion of said tube, said connecting assembly including a connecting component configured and arranged to be removably attached to a corresponding connecting component on the towed vehicle.

이 특허에 인용된 특허 (10) 인용/피인용 타임라인 분석

Gullickson Russell C. (1001 W. 4th St. Laurel MT 59044), Energy dampening drawbar.
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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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Muonro Grant (42 Charles Street Ascot Vale ; Vic. AUX 3032), Towing hitch.
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Jacks Donald E. (2826 W. Cook Rd. Ft. Wayne IN 46808), Trailer hitch.
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Taylor ; Jr. Thomas A. (212 S. 8th St. Chickasha OK 73018), Trailer hitch.
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James Loyal W. (6038 Anita Rd. Chico CA 95926), Trailer hitch assemblies.
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James Loyal W. (Route 4 ; Box 454 Chico CA 95926), Trailer hitch assemblies.
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Thorne Rexford M. (4931 S. Center Casper WY 82601) Edleman David G. (715 S. Grant Casper WY 82601), Trailer hitch shock absorber.
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Calvert Larry J. (254 Emerling Cool Valley MO 63121), Vehicle hitch assembly.
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McBride ; Charles H., Vertically adjustable trailer hitch.
상세보기

이 특허를 인용한 특허 (37) 인용/피인용 타임라인 분석

Siegel, Theodore J., Adjustable clevis hitch ball.
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Wyers, Philip, Adjustable draw bar for trailer hitches.
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Putnam,Rex D., Adjustable hitch.
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Fortner, William Olen, Adjustable receiver hitch system.
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Rebick, Michael S., Adjustable trailer hitch.
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Harper, Jason Robert, Apparatus and method of installing an internal locking ring to reinforce an adjustable trailer hitch.
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Troutman, William G., Ball hitch safety device.
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Svihla, Daniel James, Class IV adjustable trailer hitch assembly.
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Rabska, Kevin, Gooseneck coupler head.
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Drake, Frank; Rabska, Kevin, Gooseneck coupler with slideable locking members and clinch.
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Drake, Frank; Rabska, Kevin, Gooseneck coupler with slideable style locking members.
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Works, Joseph W., Height adjustable stow-away receiver hitch.
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Hoffman, Patrick; King, David; Murphy, Thomas, Hitch-mounted collapsible stairs for vehicle.
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Columbia, John R., Multi-task trailer hitch assembly.
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Van Velsor Wesley, Paving apparatus and method.
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Chen,Raymond; Tung,Chuan Tsai, Safety multi-ball mount.
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Rehme, Mark L., Shock absorbing trailer hitch.
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Rehme,Mark L., Shock absorbing trailer hitch.
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Rehme,Mark L., Shock absorbing trailer hitch.
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Moss, Newell Ryan; Bowers, Jack W.; Wing, H. Arthur, Stowable-lock, convertible-pintle hitch.
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Moss, Newell Ryan, Stowaway, receiver hitch.
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Harper, Jason Robert, System and method for reinforcing an adjustable trailer hitch.
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Putnam, Rex D., Telescoping tower hitch assembly.
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Christensen,Craig A., Trailer ball raising and lowering apparatus.
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Bryce, Norman K., Trailer hitch.
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Capuano,Daniel A., Trailer hitch.
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Cearns, Gary, Trailer hitch.
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Jerry, Smith R., Trailer hitch assembly and method for connecting a tractor vehicle and a trailer vehicle with force dampening capabilities.
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Thomas William J., Trailer hitch assembly with an interchangeable ball.
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Rosenlund, Blaine L., Trailer hitch elevator.
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Dye, Dewey, Trailer hitch having rapid adjustment.
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Cipolla, James, Trailer hitch step.
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Hensley, James C., Trailer hitch with adjustable hitch bar.
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Miles,David M.; Timmie,William R.; Steinmetz, Jr.,Charles S., Universal adjustable lift/drop hitch.
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O'Connell, Timothy E., Vehicle hitch adapter comprising a pitch lock system.
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Massey, Randy A., Vertically adjustable trailer hitch.
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Carrico, Timothy J., Vertically operable hitch.
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A	생활필수품
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[미국특허] Height adjustable coupling device with vertical cushioning 원문보기