Trailer coupling for tractive vehicles, in particular agricultural tractors
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B60D-001/00
B60D-001/40
출원번호
UP-0835788
(2007-08-08)
등록번호
US-7631886
(2009-12-24)
우선권정보
GB-0615772.1(2006-08-09)
발명자
/ 주소
Kapfer, Johannes
Wolfle, Gottlieb
출원인 / 주소
AGCO GmbH
인용정보
피인용 횟수 :
0인용 특허 :
11
초록▼
A trailer coupling for tractive vehicles, in particular agricultural tractors, consisting of two vertical guidance cheeks (7), fitted with lateral spacing to the rear of the vehicle, the guidance cheeks including vertical slots (7a) and a bearing member (11) held detachably at the lower end region o
A trailer coupling for tractive vehicles, in particular agricultural tractors, consisting of two vertical guidance cheeks (7), fitted with lateral spacing to the rear of the vehicle, the guidance cheeks including vertical slots (7a) and a bearing member (11) held detachably at the lower end region of the guidance cheeks, on which a coupling member (12) is arranged for attaching an implement. In the case of a prior art trailer coupling, all forces transmitted from the attached implement to the coupling member used, a ball coupling (12) for example, are conducted via the bearing member (11) into the guidance cheeks (7). Thus this involves the undesirable necessity of having to dimension the guidance cheeks in a robust manner, which in turn leads to space problems within the tail end region of the vehicle. Therefore a trailer coupling is to be created which reduces the load on the guidance cheeks (7), when the forces of the attached implement are conducted into the rear of the vehicle. This is achieved by arranging the bearing member (11) to extend as far as a bearing block (10) fitted to the rear of the vehicle and connecting the bearing member to the bearing block (10) via at least one connecting element (17), which transmits dissipating forces of the implement exclusively in the vehicle's longitudinal direction. The bearing member (11) is also guided through the guidance cheeks (7) via further connecting elements (18, 18a, 19), which transmit exclusively vertical and transverse forces of the implement.
대표청구항▼
We claim: 1. In a trailer coupling for tractive vehicles, in particular agricultural tractors, comprising two vertical guidance cheeks (7), fitted with lateral spacing to the rear of the vehicle, the guidance cheeks including vertical slots and a bearing member (11), held detachably at the lower en
We claim: 1. In a trailer coupling for tractive vehicles, in particular agricultural tractors, comprising two vertical guidance cheeks (7), fitted with lateral spacing to the rear of the vehicle, the guidance cheeks including vertical slots and a bearing member (11), held detachably at the lower end region of the guidance cheeks, on which a coupling member (12) is arranged for attaching an implement, wherein the bearing member (11, 25) extends as far as a bearing block (10) fitted to the rear of the vehicle and is connected to the bearing block (10) via at least one connecting element (17), which transmits dissipating forces of the implement exclusively in the vehicle's longitudinal direction, and that the bearing member (11, 25) is guided through the guidance cheeks (7) via further connecting elements (18, 18a, 19), which transmit exclusively vertical and transverse forces of the implement, and wherein the support members (18) are provided as the further connecting elements, which support members engage in the vertical slots (7a) of the guidance cheeks (7) and are connected with the bearing member (11, 25) with axial play by socket pins (20) extending in the vehicle's longitudinal direction. 2. A trailer coupling according to claim 1, in which the at least one connecting element is a socket pin (17). 3. A trailer coupling according to claim 1, in which the bearing block (10) is provided with a passage (10a) accommodating a front most region (11b) bearing member (11). 4. A trailer coupling according to claim 3, in which the front most region (11b) of the bearing member (11) engages in the passage (10a) and a shoulder (11a) of the bearing member engages the block (10) to determine the position of the bearing member (11) in the vehicle's longitudinal direction. 5. A trailer coupling according to claim 1, in which the bearing member (11) runs underneath the guidance cheeks (7). 6. In a trailer coupling for tractive vehicles, in particular agricultural tractors, comprising two vertical guidance cheeks (7), fitted with lateral spacing to the rear of the vehicle, the guidance cheeks including vertical slots and a bearing member (11), held detachably at the lower end region of the guidance cheeks, on which a coupling member (12) is arranged for attaching an implement, wherein the bearing member (11, 25) extends as far as a bearing block (10) fitted to the rear of the vehicle and is connected to the bearing block (10) via at least one connecting element (17), which transmits dissipating forces of the implement exclusively in the vehicle's longitudinal direction, and that the bearing member (11, 25) is guided through the guidance cheeks (7) via further connecting elements (18, 18a, 19), which transmit exclusively vertical and transverse forces of the implement, wherein the bearing member (11) runs underneath the guidance cheeks (7), and wherein the bearing member (11) protrudes laterally beyond the guidance cheeks (7) and the laterally protruding regions of the bearing member (11) support coupling means (22) for the connection of hydraulic cylinders. 7. A trailer coupling according to claim 1, in which the bearing member (25) is a drawbar, which is adjustably guided on the vehicle by a passage (10a) in the bearing block (10) which accommodates the front region (11b) of the drawbar, the drawbar also resting on a bridge (26) coupled with the support member (18) by means of the socket pins (20). 8. A trailer coupling according to claim 7, in which the bridge (26) and a U-shaped clip (27), detachably fitted thereto, form an opening, in which the bearing member (25) is adjustably guided.
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이 특허에 인용된 특허 (11)
Wiers, Thomas A., Adjustable hitch assembly for towing trailers.
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