| 摘要 |
PROBLEM TO BE SOLVED: To provide a push-button switch which is improved in sealing performance of a sealing packing and the lifetime of the sealing packing enabling use for a long time by securing positive installation of the sealing packing to the switch operating part and the case. SOLUTION: The inner periphery side fitting base 26 of the sealing packing 24 is clipped by a plunger side packing engagement part 17 and a push-button side packing engagement part 22, and in the state that the outer periphery side fitting base 27 of the sealing packing 24 is engaged in a case side packing engagement part 10, a packing pushing member 25 is engaged with a packing pushing member engaging part 9, thereby by pushing and locking the outer periphery side fitting base 27 to the case side packing engagement part 10 by this packing pushing member 25, installation of the sealing packing 24 on the switch operating part 11 and the case 3 is made positively. COPYRIGHT: (C)2006,JPO&NCIPI
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