Title:
スナップアクション機構及びそれを用いた圧力スイッチ
Document Type and Number:
Japanese Patent JP4573869
Kind Code:
B2
Abstract:
A pressure switch in accordance with the present invention includes an external force transmission mechanism for separating a cover and a housing from each other. A chamber defined by the above-mentioned cover and the above-mentioned external force transmission mechanism serves as a first pressure chamber, and a chamber defined by the above-mentioned housing and the above-mentioned external force transmission mechanism serves as a second pressure chamber. In the second pressure chamber, a movable piece having first and second movable members arranged opposite to each other and one or more fixed contacts are disposed. The first and second movable members are connected to each other via a flat spring. A contact is disposed on the second movable member and functions as a movable contact. The above-mentioned external force transmission mechanism applies an external force to the first movable member to displace the first movable member, and the second movable member is reversed at the operating point of the first movable member, so that the above-mentioned movable contact and the above-mentioned fixed contact are brought into contact with each other.
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Inventors:
Koichi Ochiai
Takashi Tsumura
Kazuo Abe
Straw goods
Takashi Tsumura
Kazuo Abe
Straw goods
Application Number:
JP2007504782A
Publication Date:
November 04, 2010
Filing Date:
February 23, 2006
Export Citation:
Assignee:
YAMATAKE CORPORATION
International Classes:
H01H3/16; H01H5/10
Domestic Patent References:
| JPH05114341A | 1993-05-07 | |||
| JPS57163638U | 1982-10-15 | |||
| JPS6313213A | 1988-01-20 |
Attorney, Agent or Firm:
Hideaki Tazawa
Hamada Hatsune
Hamada Hatsune