| 摘要 |
PROBLEM TO BE SOLVED: To provide a jack easily available in accident, usable in daily life for learning the operation, smaller and lighter enough to drive manually, applicable for jacking up low objects and capable of jack-up with a slight operating force at all times. SOLUTION: The jack comprises a pair of links 1, 2 crossing each other in a X-form and driving means 8, 9 for changing the crossing angle of the links. Adjacent two ends out of four ends of the X-form links 1, 2 are located on a ground side and one of the other two ends is provided with a load support 13. The driving means 9 is vertically mounted between the other end and the end located thereunder on the ground side. Preferably, the driving means 9 is arranged with its direction changeable into horizontal. COPYRIGHT: (C)2003,JPO
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