IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0293560
(2006-04-12)
|
등록번호 |
US-8087718
(2012-01-03)
|
국제출원번호 |
PCT/SE2006/000437
(2006-04-12)
|
§371/§102 date |
20080919
(20080919)
|
국제공개번호 |
WO2007/117183
(2007-10-18)
|
발명자
/ 주소 |
- Bengtsson, Kjell-Ewe
- Lindblom, Jonny
- Ericsson, Allan
- Jurgec, Tonie
- Hentschel, Ulf
|
출원인 / 주소 |
- Volvo Construction Equipment AB
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
6 |
초록
▼
An arrangement for suspension of an operator cab on a machine frame in order to permit controlled motion of the cab relative to the frame is provided. The arrangement includes at least one first suspension member disposed between an underside of the cab and the frame for supporting the cab on the fr
An arrangement for suspension of an operator cab on a machine frame in order to permit controlled motion of the cab relative to the frame is provided. The arrangement includes at least one first suspension member disposed between an underside of the cab and the frame for supporting the cab on the frame. The arrangement further includes at least one second suspension member disposed between a rear side of the cab and a rigid support structure and wherein the second suspension member is arranged at an elevated position relative to the underside of the cab. The second suspension member is adapted to provide an increased rigidity against cab movements both in the longitudinal and lateral direction of the machine during operation of the work machine.
대표청구항
▼
1. An arrangement for suspension of an operator cab on a work machine frame, the arrangement comprising at least one first suspension member adapted to be disposed between an underside of the cab and the frame for supporting the cab on the frame, and at least two second suspension members adapted to
1. An arrangement for suspension of an operator cab on a work machine frame, the arrangement comprising at least one first suspension member adapted to be disposed between an underside of the cab and the frame for supporting the cab on the frame, and at least two second suspension members adapted to be disposed rearward of the cab between a rear side of the cab and a rigid support structure, wherein the two second suspension members are adapted to be arranged at a distance from each other sideways of the cab and wherein the second suspension members are adapted to be arranged at an elevated position relative to the underside of the cab, wherein each of the at least two second suspension members comprises a cylindrical resilient cushioning member having a center axis that is parallel with a vertical direction of the cab, wherein each of the resilient cushioning members comprises two recesses uniformly distributed on opposite sides of the center axis and extending into the cushioning member in a direction parallel to the center axis, each of the recesses has an axis defined by a plane perpendicular to a plane through the center axis and the recesses, and wherein the axis of each of the recesses is adapted to be directed towards a center of gravity of the cab. 2. The arrangement as claimed in claim 1, wherein the second suspension members have isolation characteristics and are adapted to reduce transmission of sounds to the cab in interaction with the rigid support structure. 3. The arrangement as claimed in claim 1, wherein the second suspension member and the first suspension member are in combination adapted for a suspension rigidity which is substantially equal in the longitudinal and lateral direction of the machine. 4. The arrangement as claimed in claim 1, wherein the second suspension members have an axis of rigidity oriented in parallel to an upwards direction of the cab. 5. The arrangement as claimed in claim 1, wherein the second suspension members are arranged at a level in the vicinity of a center of gravity of the cab. 6. The arrangement as claimed in claim 1, wherein the cab comprises two rear posts at a distance from each other sideways of the cab and one second suspension member is connected to each post. 7. The arrangement as claimed in claim 1, wherein the support structure is adapted to support the cab in the event of inclination of the cab relative to the frame beyond a predetermined inclination. 8. The arrangement as claimed in claim 7, wherein the arrangement comprises means for mechanically connecting the cab to the support structure in the event of the inclination of the cab relative to the frame beyond the predetermined inclination. 9. An arrangement for suspension of an operator cab on a work machine frame, the arrangement comprising at least one first suspension member adapted to be disposed between an underside of the cab and the frame for supporting the cab on the frame, and at least two second suspension members adapted to be disposed between a rear side of the cab and a rigid support structure, wherein the two second suspension members are arranged at a distance from each other sideways of the cab and wherein the second suspension members are arranged at an elevated position relative to the underside of the cab, wherein each of the at least two second suspension members comprises a cylindrical resilient cushioning member having a center axis that is parallel with a vertical direction of the cab, wherein each of the resilient cushioning members comprises two recesses uniformly distributed on opposite sides of the center axis and extending into the cushioning member in a direction parallel to the center axis, each of the recesses has an axis defined by a plane perpendicular to a plane through the center axis and the recesses, and wherein the axis of each of the recesses is directed towards a center of gravity of the cab, wherein the support structure has an active mode in which it supports the cab in the event of an inclination of the cab relative to the frame beyond a predetermined inclination, the arrangement comprises means for mechanically connecting the cab to the support structure in the event of the inclination of the cab relative to the frame beyond the predetermined inclination, and, in the active mode, the connecting means is adapted to transmit forces between the cab and the support structure and, in an inactive mode, in which the cab is inclined less than the predetermined inclination, the connecting means provides the cab with at least substantially freedom of movement without the transmission of forces from the support structure. 10. The arrangement as claimed in claim 8, wherein the cab comprises two rear posts at a distance from each other sideways of the cab and wherein one connection means is disposed at each of the two rear cab posts and each second suspension member is separate from the connection means at each rear cab post. 11. The arrangement as claimed in claim 1, wherein the second suspension members each comprise a resilient cushioning member in operative contact with the cab and the rigid support structure. 12. The arrangement as claimed in claim 11, wherein the resilient cushioning member comprises structure for achieving at least one main axis of rigidity. 13. The arrangement as claimed in claim 1, wherein the support structure is positioned at least to a substantial extent behind the cab in the machine's intended driving direction. 14. The arrangement as claimed in claim 1, wherein one first suspension member is arranged at each corner of the cab. 15. The arrangement as claimed in claim 1, wherein the cab has four corners and one first suspension member is arranged substantially adjacent each corner. 16. Work machine comprising a frame, a cab and a suspension arrangement, the suspension arrangement comprising at least one first suspension member disposed between an underside of the cab and the frame for supporting the cab on the frame, and at least two second suspension members disposed rearward of the cab between a rear side of the cab and a rigid support structure, wherein the two second suspension members are arranged at a distance from each other sideways of the cab and wherein the second suspension members are arranged at an elevated position relative to the underside of the cab, wherein each of the at least two second suspension members comprises a cylindrical resilient cushioning member having a center axis that is parallel with a vertical direction of the cab, wherein each of the resilient cushioning members comprises two recesses uniformly distributed on opposite sides of the center axis and extending into the cushioning member in a direction parallel to the center axis, each of the recesses has an axis defined by a plane perpendicular to a plane through the center axis and the recesses, and wherein the axis of each of the recesses is directed towards a center of gravity of the cab. 17. Work machine according to claim 16 comprising a forward frame, a rear frame and an articulation joint connecting the forward frame to the rear frame, which allows pivoting about a vertical axis for steering the machine. 18. Work machine according to claim 16, comprising a forward axle, which is rigidly connected to a vehicle frame, and a rear axle, which forms a pendulum axle connected to the vehicle frame. 19. Work machine according to claim 16, comprising a work implement for at least one of moving and affecting at least one of a load and material. 20. An arrangement for suspension of an operator cab on a work machine frame, the arrangement comprising at least one first suspension member adapted to be disposed between an underside of the cab and the frame for supporting the cab on the frame, and at least two second suspension members adapted to be disposed rearward of the cab between a rear side of the cab and a rigid support structure, wherein each of the at least two second suspension members comprises a cylindrical resilient cushioning member having a center axis that is parallel with a vertical direction of the cab, wherein each of the resilient cushioning members comprises two recesses uniformly distributed on opposite sides of the center axis and extending into the cushioning member in a direction parallel to the center axis, each of the recesses has an axis defined by a plane perpendicular to a plane through the center axis and the recesses, and wherein the axis of each of the recesses is directed towards a center of gravity of the cab.
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