| 摘要 |
<p>A force multiplying structure includes a central cam (132) associated with an output shaft (28). A first link structure (114) has one end pivotally coupled to a first member (112) of a tool and another end is pivotally coupled to the central cam (132). A first roller 30' rotates on the cam surface (130) of the first member (112) and on a surface of the central cam (132). A second link structure (118) has one end pivotally coupled to a second member (122 ) of a tool and another end is pivotally coupled to the central cam (132). A second roller 30" rotates on the cam surface (138) of the second member and on a surface of the central cam (132). Movement of the output shaft causes the link structures to move, causing the first member (112) to move and engage the object with a force increased from a force exerted by the output shaft. The rollers carry loads exerted on the second link structures.</p> |
