Title:
PUSH SWITCH
Document Type and Number:
WIPO Patent Application WO/2019/103032
Kind Code:
A1
Abstract:
[Problem] To ensure good clicking feel and a predetermined amount of stroke when a contact spring is pushed, without using a complex housing structure and eliminating the need for adjusting the legs of the contact spring.
[Solution] This push switch (1) is provided with: a first fixed contact (3); a second fixed contact (4) disposed around the first fixed contact (3); and a dome-shaped contact spring (5) disposed over the first fixed contact (3) and the second fixed contact (4). The contact spring (5) is provided with a center (5a) contacting the first fixed contact (3), and a plurality of legs protruding outward from the center (5a) and contacting the second fixed contact (4). The plurality of legs include a first leg (5b) disposed over the second fixed contact (4) and having a distal end part in a position not contacting the second fixed contact (4), and a second leg (5c) disposed over the second fixed contact (4) and having a distal end part in a position contacting the second fixed contact (4).
Inventors:
WATANABE MASASHI (JP)
WATANABE SHINSUKE (JP)
MIURA MITSUNORI (JP)
ITO KEN (JP)
WATANABE SHINSUKE (JP)
MIURA MITSUNORI (JP)
ITO KEN (JP)
Application Number:
PCT/JP2018/042967
Publication Date:
May 31, 2019
Filing Date:
November 21, 2018
Export Citation:
Assignee:
CITIZEN ELECTRONICS (JP)
CITIZEN WATCH CO LTD (JP)
CITIZEN WATCH CO LTD (JP)
International Classes:
H01H13/52; H01H5/30
Foreign References:
| JP2011187406A | 2011-09-22 | |||
| JP2002237233A | 2002-08-23 | |||
| JP2003092620A | 2003-03-28 | |||
| JP2017204456A | 2017-11-16 | |||
| JP2017076615A | 2017-04-20 | |||
| JP3178218U | 2012-09-06 |
Attorney, Agent or Firm:
ASAKAWA Tetsu (JP)
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