| 摘要 |
Pivotable legs (4A,4B) form the parallelogram remaining two parallel sides and at their lower end are articulately connected to the basic foundations (2A,2B). At their other end that are articulately connected with the lifting frame, so that they can be pivoted by rotation around first lower and first upper rotation centres (22A,22B,23A,23B). Front and rear floor walls (6B) are provided in the basic foundations with a front hydraulic telescopic cylinder (5A) in the front floor well and a rear hydraulic telescopic cylinder (5B) in the rear floor well. The telescopic cylinders in the expanded state tilt in a direction towards the leg tilt direction, whilst in the pushed-together state they tilt in the same main direction as the legs in the raised position in the parallelogram. |
