| 摘要 |
PROBLEM TO BE SOLVED: To facilitate rotating actions by pressing with a thenar when the wrist is to perform palmar flexion and by having the middle finger work like a hook when it is to perform dorsal flexion.SOLUTION: A grip operation part 3 of a manual tool has on a grip body 5 to be gripped with the palm and the middle finger a thenar face B to be in contact with the thenar, a palmar face C to be in contact with the middle of the palm and the hypothenar, a middle finger face to be in contact with the middle finger, and an open face E that is positioned between the tip of the middle finger and the thenar when gripped by hand and where the thumb can be placed. Between the thenar face B and the palmar face C of the grip body 5, there are a palmar flexion pressing part G, which transmits rotational force to the grip body 5 by pressing with the thenar when the wrist is to perform palmar flexion, and a dorsal flexion hooking part H, which transmits rotational force to the grip body 5 by using the middle finger as a hook on the middle finger face D of the grip body 5 when the wrist is to perform dorsal flexion. |
