| 摘要 |
PROBLEM TO BE SOLVED: To provide a handling device with a button which is prevented from being unintentionally disassembled due to impact when the handling device is dropped.SOLUTION: In a handling device 1 having a push button 10, the push button 10 is engagedly fitted into an upper case portion 20 by a first button assembling operation, so that the push button 10 is set to a drop-off prevented state in the fitting direction. By a subsequent second button assembling operation, the push button 10 under the drop-off prevented state is relatively moved in a direction different from the fitting direction with respect to the upper case portion 20 and fitted to the upper case portion 20, so that the push button 10 is set to a returning prevented state in the relatively moving direction and also a perfectly drop-off prevented state in the fitting direction. Under this state, the push stroke PS of the push button 10 can be secured by a predetermined length. |
