CONTACT MEMBER AND SWITCH DEVICE USING CONTACT MEMBER

Title:

CONTACT MEMBER AND SWITCH DEVICE USING CONTACT MEMBER

Document Type and Number:

WIPO Patent Application WO/2011/136006

Kind Code:

A1

Abstract:

Provided are contact member having a curved portion on which a plurality of projections are provided and a switch device using the contact member, which makes an operation feeling difficult to be deteriorated even if the position of a pressing point is outside from the center. On a contact member (10) which is formed of a metal leaf spring member, a curved portion (12) having a dome shape is formed, and around the center (O1), three projections (13a, 13b, 13c) are projected toward a substrate. The leaf spring member which forms the contact member (10) is extended in an X direction. The projections (13b, 13c) are disposed so that circular outlines thereof are not overlapped with a longitudinal center line (Ox), which extends in the extended direction. Therefore, it is possible to shift the position of the projections with respect to a direction in which the operation feeling is deteriorated by being affected by the extended direction of the member, and it is possible to expand an area where the operation feeling is not deteriorated extensively in the X direction and a Y direction when pressing a position apart from the center (O1).

Inventors:

HANAWA NAOKI (JP)

Application Number:

PCT/JP2011/058975

Publication Date:

November 03, 2011

Filing Date:

April 11, 2011

Export Citation:

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Assignee:

ALPS ELECTRIC CO LTD (JP)
HANAWA NAOKI (JP)

International Classes:

H01H1/06; H01H5/30; H01H11/00; H01H13/48; H01H13/702

Foreign References:

JPH0594919U	1993-12-24
JP2003077366A	2003-03-14
JP2009152119A	2009-07-09
JPH0727033U	1995-05-19
JP2004139997A	2004-05-13
JP2001286905A	2001-10-16
JP2007173099A	2007-07-05
JP2006216329A	2006-08-17
JP2007280848A	2007-10-25

Other References: