| 摘要 |
PCT No. PCT/SE87/00295 Sec. 371 Date Dec. 27, 1988 Sec. 102(e) Date Dec. 27, 1988 PCT Filed Jun. 24, 1987 PCT Pub. No. WO88/00262 PCT Pub. Date Jan. 14, 1988.A mobile work unit (1) having raisable and lowerable support legs (4, 4'), which adjacent to one end portion are arranged pivotally attached to the work unit (1), and which during a pivoting movement can take up contact with a below located ground plane (6) under influence from an associated piston cylinder (5, 5'). According to the invention, at least one support leg (4, 4') is arranged supporting a linkshaped member (8), pivotally attached to the support leg (4, 4') and extending in a transverse direction extending relationship to the length direction of extension for the support leg (4, 4'). Associated piston cylinder (5, 5') for the operation of the support leg (4, 4') is arranged pivotally attached with a first end portion at the work unit (1), and with the second end portion pivotally attached adjacent to a first end portion of the linkshaped member (8). Opposed end portion of the linkshaped member (8) is attached longitudinally extending member (9), during the pivoting movement of the linkshaped member (8) between two alternative restricting positions being arranged to cause a movement for a vehicle wheel (2, 2', 3, 3') located adjacent to the support leg (4, 4') in substantially the opposed direction in relation to the direction of travel for the support leg (4, 4'). The wheel is preferably located with the wheel center in front of the front portion of the work unit (1) or behind its rear portion. Longitudinal extending member (9) is advantageously rigidly connected to the linkshaped member (8), arranged supporting a drive motor (7) and/or a vehicle wheel (2, 2', 3, 3') adjacent to the opposed end portion. |
