Title:
TWO-STAGE SWITCH
Document Type and Number:
WIPO Patent Application WO/2012/153587
Kind Code:
A1
Abstract:
[Problem] To provide a two-stage switch which has few components, can be made thin, and can obtain a clear clicking sense.
[Solution] A two-stage switch (10) is provided with a click dome plate (20) having a movable contact, a keypad (30) joined to the upper surface of the dome of the dome plate (20), and a fixed contact (41) formed on a substrate (40). The fixed contact (41) comprises a first stage fixed contact (42) and second stage fixed contact (43). When the keypad (30) is not being subjected to a pressing operation, the dome plate (20) is in a floating state without contacting any of the fixed contacts. With a first stage pressing operation on the keypad (30), the pad (30) is deformed and the dome plate (20) comes into contact with the first stage fixed contact (42). With a second stage pressing operation on the keypad (30), the dome plate (20) deforms with a clicking sensation and comes into contact with the second stage fixed contact (43).
Inventors:
INAGAKI SHUJI (JP)
Application Number:
PCT/JP2012/059473
Publication Date:
November 15, 2012
Filing Date:
April 06, 2012
Export Citation:
Assignee:
COVAC CO LTD (JP)
INAGAKI SHUJI (JP)
INAGAKI SHUJI (JP)
International Classes:
H01H13/66; H01H13/48
Foreign References:
| JP2001297657A | 2001-10-26 | |||
| JP2002260479A | 2002-09-13 | |||
| JPS6375915U | 1988-05-20 | |||
| JPH08335424A | 1996-12-17 |
Other References:
See also references of EP 2709134A4
Attorney, Agent or Firm:
WATANABE, Atsushi et al. (JP)
Atsushi Watabe (JP)
Atsushi Watabe (JP)
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Claims: