| 摘要 |
A scissors-type jack in which the head part 1 can be fixed to the chassis of a vehicle to be lifted, and the jack can freely follow the movement of the point of articulation because two of the lever arms 3 and 4 are provided with hinge pins 10, 12, which can move along arcuate slots in the base 2 and head 1 respectively, the movement being resisted by a resiliently-loaded spacer member (8), Fig. 3. e.g., (not shown), arranged between the movable pin and a "fixed" hinge pin 9 or 11 respectively. <IMAGE> |
