09671813 cites 29 patents.

A trigger switch has a case member, a cover member, and an operation member configured to be used to carry out an operation. The case member and the cover member are combined with each other to form a waterproof case. When the operation member is operated, the operation member is displaced inward of the waterproof case. An internal pressure of the waterproof case changes in accordance with displacement of the operation member. The case member has a case base that is made from an inelastic body. The case base does not deform in accordance with a change in internal pressure of the waterproof case. The case base has at least one hole part. The case member has at least one deformation section that seals the at least one hole part. The deformation section is made from an elastic body.

Title
Trigger switch
Application Number
14/239731
Publication Number
9671813 (B2)
Application Date
July 20, 2012
Publication Date
June 6, 2017
Inventor
Junichi Nishikimi
Anjo
JP
Jiro Suzuki
Anjo
JP
Yoshiyuki Baba
Hikone
JP
Akihiro Hozumi
Okayama
JP
Agent
Osha Liang
Assignee
Makita Corporation
JP
OMRON Corporation
JP
IPC
H01H 13/06
G05G 1/02
View Original Source