IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0819115
(2004-04-07)
|
우선권정보 |
SE-0301046(2003-04-09) |
발명자
/ 주소 |
- Eriksson,Claes
- Bodin,Anders
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출원인 / 주소 |
- BAE Systems Hagglunds Aktiebolag
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대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
3 |
초록
▼
Device for manoeuvring a tension wheel in a chassis of a tracked vehicle, in which the tension wheel is rotatably mounted on a telescopic rocker arm (12). The rocker arm can, on the one hand, be lengthened and shortened by a first hydraulic cylinder and, on the other hand, swivelled about a transver
Device for manoeuvring a tension wheel in a chassis of a tracked vehicle, in which the tension wheel is rotatably mounted on a telescopic rocker arm (12). The rocker arm can, on the one hand, be lengthened and shortened by a first hydraulic cylinder and, on the other hand, swivelled about a transverse axis (14) by a second hydraulic cylinder for the purpose of raising and lowering the tension wheel. The first hydraulic cylinder is designed to act upon a lever arm (58) of a sleeve (54) rotatable in a hub part (20) of an inner part (18) of the rocker arm (12), which sleeve has an eccentrically mounted crank pin (52) which is hinge-connected to an outer part (22) of the rocker arm for the purpose of displacing the latter relative to the inner arm part, in the event of a mutual rotation motion between the sleeve (54) and the hub part (20) of the inner rocker arm part, in such a way that the rocker arm is lengthened upon a downward swivel motion of the arm and the tension wheel.
대표청구항
▼
What is claimed is: 1. Device for manoeuvring a tension wheel in a chassis of a tracked vehicle, in which the tension wheel is rotatably mounted on a free end of a telescopic rocker arm mounted pivotably about a transverse axis in the vehicle, the rocker arm being able to be lengthened and shortene
What is claimed is: 1. Device for manoeuvring a tension wheel in a chassis of a tracked vehicle, in which the tension wheel is rotatably mounted on a free end of a telescopic rocker arm mounted pivotably about a transverse axis in the vehicle, the rocker arm being able to be lengthened and shortened by means of a first drive mechanism and being able to be swivelled about the transverse axis by means of a second drive mechanism for the purpose of raising and lowering the tension wheel, wherein the first drive mechanism is designed to be able to rotate a sleeve rotatable about the transverse axis in a hub part of an inner part of the rocker arm, which sleeve has an eccentrically mounted crank pin which is hinge-connected to an outer part of the rocker arm for the purpose of displacing the latter relative to the inner arm part in the event of a mutual rotation motion between the sleeve and the hub part of the inner rocker arm part in such a way that the rocker arm is lengthened upon a downward swivel motion of the arm and the tension wheel by courtesy of the second drive mechanism. 2. Device according to claim 1, wherein the second drive mechanism is configured to swivel the rocker arm by rotating the hub part of the inner rocker arm part. 3. Device according to claim 1, wherein the crank pin is connected to the outer arm part of the rocker arm via a first rod element, which is fixedly connected to the outer arm part and is slidably guided in a portion of the inner arm part which projects from the hub part. 4. Device according to claim 3, wherein the crank pin is hinge-connected to the first rod element via a link element. 5. Device according to claim 1, wherein the rocker arm ( 12), in cross section, has a larger dimension in height than in width and in that the outer arm part has a further rod element situated in essentially the same vertical plane as the first rod element and slidably guided in the said projecting portion of the inner arm part. 6. Device according to claim 1, wherein the first and second drive mechanism are constituted by a first and second hydraulic cylinder, respectively. 7. Device according to claim 6, wherein the first hydraulic cylinder is designed to act upon a lever arm of the sleeve rotatable in the hub part. 8. Device according to claim 6, wherein the second hydraulic cylinder is designed to act upon a lever arm of the hub part of the inner arm part of the rocker arm. 9. Device according to claim 6, wherein the second hydraulic cylinder is configured so as, in the swivelled-down position of the rocker arm and the tension wheel, to be able to allow a yielding, dampened swivel motion of the rocker arm. 10. Device according to claim 6, wherein the second hydraulic cylinder is configured so as, in the swivelled-up position of the rocker arm and the tension wheel, to be hydraulically locked in order to fix the rocker arm and the tension wheel in the swivelled-up position. 11. Device according to claim 6, wherein the first and the second hydraulic cylinder are disposed in an essentially parallel relationship above the rocker arm. 12. Device according to claim 1, wherein the swivel motion of each rocker arm is sprung with the aid of a respective torsion bar, one end of which is anchored in the hub part of the rocker arm and the other end of which is fixed in the hull of the vehicle on that side of the vehicle opposite this rocker arm. 13. Device according to claim 12, wherein the torsion bars extend essentially parallel with each other, transversely across the vehicle.
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