| 摘要 |
A crutch 1 has vertical support pipes 2, 3, a slider 10 slidably mounted on the support pipes 2, 3, a grip 11 mounted on the slider 10, and a slider support system 12 for supporting the slider 10. The slider support system 12 has a movable vertical pipe 31, a fixed vertical pipe 32, a fixing pin 33 provided on the movable vertical pipe 31 , and height adjustment holes 34(1) to 34(5) formed in the fixed vertical pipe 32. By changing the height adjustment hole with which the fixing pin 33 is engaged, the height of the grip 11 can be adjusted. No holes must be formed in the vertical support pipes 2, 3 for constituting a crutch main body, and height adjustment can be carried out by manipulating only one fixing pin 33.
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