| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lifting assistance device capable of reducing a burden of a worker during large movement of a targeted article and attaining superior durability. <P>SOLUTION: This device has legs 2 which are stationary sections for a link mechanism of four nodes vertically standing, in which one connection point P is positioned at an upper portion in the vertical direction and the other connection point Q is positioned at a lower portion in the vertical direction, and which can be in a stable posture on a flat surface, a waist 3 which rotates with the legs at the joint point P and is one node forming a kinematic pair, the first lever 7 which rotates with the legs at the connection point Q and is the other node forming a kinematic pair, the second lever 8 which is an intermediate node between the waist and the first lever in the link mechanism, a motor 4 which is fixed at the waist, rotates and drives the first lever with the connection point Q centered or fixed at the waist, rotated and drives the second lever with a joint point S connecting the waist and the second lever centered, a back bone which continues to the waist and extends upward, and an arm 6 connected with an upper end of the back bone so as to be rotatable within a vertical surface. <P>COPYRIGHT: (C)2008,JPO&INPIT |
