KEY-PAD AND METHOD OF PRODUCING THE SAME

Title:

KEY-PAD AND METHOD OF PRODUCING THE SAME

Document Type and Number:

WIPO Patent Application WO/2005/024871

Kind Code:

A1

Abstract:

A novel elastomer key pad which has a presser allowing a user to press down a switch element with a less loss in key stroke and with a definite click feel and which makes it possible to make the process simpler than a conventional insert molding process using resin-made presser (resin chip); a material therefor; and a production method therefor. At predetermined positions in key-pad making molds (51, 52, 61, 62), recess (71, 72) for forming silicone resin-made pressers (41, 42) annexed to the key-pads (2, 21) are provided. After filling of silicone resin (9) into the recesses and starting of curing, silicone rubber material is supplied to the molds to form the key-pad main bodies (2, 21), thus providing key-pads (2, 21) having silicone resin-made pressers (41, 42) made integral therewith.

Inventors:

TAKAHASHI HIROYOSHI

Application Number:

PCT/JP2004/012251

Publication Date:

March 17, 2005

Filing Date:

August 26, 2004

Export Citation:

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Assignee:

SUNARROW LTD (JP)
TAKAHASHI HIROYOSHI

International Classes:

B29C39/10; B29C43/00; B29C45/16; H01H11/00; H01H13/14; H01H25/04; B29C39/00; B29C69/02; B29K19/00; B29K21/00; B29K63/00; B29K83/00; B29L9/00; (IPC1-7): H01H13/14; B29C39/10; B29C45/16; B29K21/00; B29K83/00; B29L7/00; H01H11/00; H01H25/04

Foreign References:

JPH0686238U	1994-12-13
JP2001351461A	2001-12-21
JP2002279860A	2002-09-27
JPH06309988A	1994-11-04

Other References: