| 摘要 |
PROBLEM TO BE SOLVED: To provide a leg length adjustment mechanism which enables non-step adjustment of a leg part.SOLUTION: A leg length adjustment mechanism comprises: a fastening shaft 21 penetrating a first frame 12 and a second frame 13; an eccentric cam part 22, which is disposed on one end side of the fastening shaft 21 protruding from the first frame 12, for moving the fastening shaft 21 in an axial direction of the fastening shaft 21, and pressing and bonding the first frame 12 and the second frame 13; a spring support part 31 provided on the other end side of the fastening shaft 21 protruding from the second frame 13; and compression spring means 32 disposed between the spring support part 31 and the second frame 13.SELECTED DRAWING: Figure 3 |
