OPERATION INPUT MECHANISM, INPUT KEY PIECE, AND KEY BASE

WIPO Patent Application WO/2007/043338

A1

There is disclosed an operation input mechanism which prevents erroneous arrangement of an input key piece. The operation input mechanism includes: a plurality of input key pieces, each having a pressing unit and a flange unit arranged at the periphery of the pressing unit; and a key base having a support unit for supporting the input key pieces. The flange unit has an identification cut-off portion for identifying the type of the input key piece and a visually distinguishable identification convex/concave pattern corresponding to the identification cut-off portion. The support unit has an identification protrusion to be brought into abutment with the identification cut-off portion. The pressing unit may have a visually distinguishable operation input printed pattern corresponding to the identification convex/concave pattern.

HANANO, Yutaka (2610 Hanazono 4-chome, Tokorozawa-sh, Saitama 47, 3590047, JP)
濱野 豊 (〒47 埼玉県所沢市花園４丁目２６１０番地 パイオニア株式会社所沢工場内 Saitama, 3590047, JP)
IIDA, Toshiyasu (2610 Hanazono 4-chome, Tokorozawa-sh, Saitama 47, 3590047, JP)

JP2006/319220

April 19, 2007

September 21, 2006

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PIONEER CORPORATION (4-1 Meguro 1-chome, Meguro-ku Tokyo, 54, 1538654, JP)
パイオニア株式会社 (〒54 東京都目黒区目黒１丁目４番１号 Tokyo, 1538654, JP)
HANANO, Yutaka (2610 Hanazono 4-chome, Tokorozawa-sh, Saitama 47, 3590047, JP)
濱野 豊 (〒47 埼玉県所沢市花園４丁目２６１０番地 パイオニア株式会社所沢工場内 Saitama, 3590047, JP)

H01H21/00; G06F3/02; H01H3/12; H01H9/18

FUJIMURA, Motohiko (FUJIMURA PATENT BUREAU, Togeki Bldg. 1-1, Tsukiji 4-chom, Chuo-ku Tokyo 45, 1040045, JP)

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