| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for changing the ankle joint angle of an artificial leg according to the height of a heel of a shoe, which may eliminate noise due to looseness by improving the patent No.1430398. SOLUTION: In this ankle joint angle switching device of the artificial leg, spring pins 6 are pressed in four holes formed by four semicircular grooves 5a provided in a two-split bush 5 wrapping a cam part 4b and four semicircular grooves 1b provided in the inner wall of the lower leg, whereby chattering due to looseness can be eliminated. COPYRIGHT: (C)2004,JPO
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