| 摘要 |
PROBLEM TO BE SOLVED: To improve the operability by always allowing the dominant hand to hold a handle. SOLUTION: In the handle 1, a pair of right and left lock-on buttons 9, 10 are provided to be energized to the projecting position from the handle 1 by a coiled spring 11, whereby even if any of the lock-on buttons 9, 10 is pushed by the press-in state of a switch lever 6, a projected step part 14 of a locking piece 13 is locked on a lock plate 15 of the switch lever 6 to attain the press-in state (the lock-on state) of the switch lever 6. The space between the lock-on buttons 9, 10 in the projecting positions is set so that when any of them is projected, it will not interfere with the other. COPYRIGHT: (C)2006,JPO&NCIPI
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