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Patent Searching and Data


Title:
SWITCH AND MANUFACTURING METHOD THEREOF
Document Type and Number:
Japanese Patent JP2019008947
Kind Code:
A
Abstract:
To provide a switch in which a tact spring is hardly broken even when the tact spring is pressed repeatedly and a manufacturing method thereof.SOLUTION: In a tact spring 20 included in a switch 10, a rib-like protrusion 23 is provided near a longitudinal cutout portion 24. When the tact spring 20 is pressed and deformed, the stress generated between the center of the tact spring 20 and the protrusion 23 is not transmitted to a longitudinal cutout portion 24 by the protrusion or largely weakened at the longitudinal cutout portion 24. At the end portion 25 in the longitudinal direction of the tact spring 20, there may be a projecting portion 22 extending in the lateral direction and protruding in the longitudinal direction.SELECTED DRAWING: Figure 2

Inventors:
柳沼 芳宏
Application Number:
JP2017122475A
Publication Date:
January 17, 2019
Filing Date:
June 22, 2017
Export Citation:
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Assignee:
シチズン時計株式会社
シチズン電子株式会社
International Classes:
H01H13/48; H01H5/30; H01H11/00; H01H13/52
Attorney, Agent or Firm:
宮島 明