Coupling for coupling pulled implements or trailer having a drawbar to a tractor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6758285
APP PUB NO 20030085047A1
SERIAL NO

10287385

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A coupling for coupling, for example, a trailer having a drawbar (2) to a tractor with a three-point linkage device, which has two height-adjustable lower steering arms (3, 4) of which one is laterally adjustable by a lateral strut (11). A first coupling element is mounted on the rear of the tractor. The drawbar (2) is provided with a second coupling element (13). The second coupling element (13) is connectable to the first coupling element (12). The coupling has a bar 14 with two ends. Each end includes a connection element (15) to connect with the lower steering arms (3, 4) of the tractor (1). A guiding mechanism comprises two guiding pins is arranged, distanced from each other, on the bar (14). The guiding bar (14) supports the drawbar (2). The drawbar (2) is guided between the guiding pins (17). The drawbar (2) is adjustable relative to the bar (14) in the longitudinal direction. An abutment (20) mounted on the drawbar belongs to the coupling and limits the longitudinal movement when reversing the tractor (1). The lateral alignment of the second coupling element (13) to the first coupling element (12) can be achieved by shortening and elongating the lateral strut (11).

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Patent Owner(s)

Patent OwnerAddress
GKN WALTERSCHEID GMBH53797 LOHMAR

International Classification(s)

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  • 2002 Application Filing Year
  • B60D Class
  • 107 Applications Filed
  • 40 Patents Issued To-Date
  • 37.39 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2002200320042005200620070255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ollefs, Horst Moers, DE 4 15

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Patent Citation Ranking

  • 6 Citation Count
  • B60D Class
  • 1.67 % this patent is cited more than
  • 21 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges125256301 - 1011 - 2021 - 3031 - 400246810121416182022242628

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