JPH04324212A - Key board unit - Google Patents

Key board unit

Info

Publication number
JPH04324212A
JPH04324212A JP3117864A JP11786491A JPH04324212A JP H04324212 A JPH04324212 A JP H04324212A JP 3117864 A JP3117864 A JP 3117864A JP 11786491 A JP11786491 A JP 11786491A JP H04324212 A JPH04324212 A JP H04324212A
Authority
JP
Japan
Prior art keywords
thickness
board
contact
button
panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP3117864A
Other languages
Japanese (ja)
Other versions
JP2908061B2 (en
Inventor
Fumiyoshi Ono
Tomonobu Watanabe
Original Assignee
Hitachi Telecom Technol Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Telecom Technol Ltd filed Critical Hitachi Telecom Technol Ltd
Priority to JP3117864A priority Critical patent/JP2908061B2/en
Priority claimed from GB9423118A external-priority patent/GB2282915B/en
Priority claimed from GB9206518A external-priority patent/GB2255234B/en
Publication of JPH04324212A publication Critical patent/JPH04324212A/en
Application granted granted Critical
Publication of JP2908061B2 publication Critical patent/JP2908061B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To reduce an invisible range on a display with thickness, from a substrate upper surface to a panel upper surface, lessened and without obstructing an operating feeling by providing escape holes on a printed board opposite to the falling preventive locking part for a button.
CONSTITUTION: When a button 3 is depressed, a contact part 2a is stroked S to contact with a contact 1a on a printed board 1 to be conducted, and also a locking part 3a for the button 3 is lowered in the escape holes 2c and 1b of a conductive contact rubber 2 and the board 1, eliminating interference with the rubber 2 or the board 1. A thickness dimension A, from the board 1 upper surface to a panel 4 upper surface, is decided by the rubber 2 thickness B and the panel 4 thickness D, and the dimension A can be lessened by reducing the thickness B and D even the stroke S is increased. Consequently an invisible range, seen from the opening part formed on the board 1, on a display on the lower part of an opening part can be reduced.
COPYRIGHT: (C)1992,JPO&Japio
JP3117864A 1991-04-23 1991-04-23 Keyboard unit Expired - Lifetime JP2908061B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3117864A JP2908061B2 (en) 1991-04-23 1991-04-23 Keyboard unit

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP3117864A JP2908061B2 (en) 1991-04-23 1991-04-23 Keyboard unit
GB9423118A GB2282915B (en) 1991-03-27 1992-03-25 Panel unit of dealing board
GB9206518A GB2255234B (en) 1991-03-27 1992-03-25 Panel unit of dealing board
US08/293,514 US5461376A (en) 1991-03-27 1994-08-22 Panel unit of dealing board
US08/358,570 US5461377A (en) 1991-03-27 1994-12-13 Panel unit of dealing board
HK115196A HK115196A (en) 1991-03-27 1996-07-04 Panel unit of dealing board
HK126896A HK126896A (en) 1991-03-27 1996-07-18 Panel unit of dealing board

Publications (2)

Publication Number Publication Date
JPH04324212A true JPH04324212A (en) 1992-11-13
JP2908061B2 JP2908061B2 (en) 1999-06-21

Family

ID=14722186

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3117864A Expired - Lifetime JP2908061B2 (en) 1991-04-23 1991-04-23 Keyboard unit

Country Status (1)

Country Link
JP (1) JP2908061B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008226599A (en) * 2007-03-12 2008-09-25 Pioneer Electronic Corp Button device
US7643087B2 (en) 2003-01-07 2010-01-05 Hoya Corporation Operating button device for portable apparatus
JP2015141868A (en) * 2014-01-30 2015-08-03 レノボ・シンガポール・プライベート・リミテッド Keyboard device and electronic apparatus
JP2015143977A (en) * 2013-12-25 2015-08-06 パナソニックIpマネジメント株式会社 Keyboard

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7643087B2 (en) 2003-01-07 2010-01-05 Hoya Corporation Operating button device for portable apparatus
JP2008226599A (en) * 2007-03-12 2008-09-25 Pioneer Electronic Corp Button device
JP2015143977A (en) * 2013-12-25 2015-08-06 パナソニックIpマネジメント株式会社 Keyboard
JP2015141868A (en) * 2014-01-30 2015-08-03 レノボ・シンガポール・プライベート・リミテッド Keyboard device and electronic apparatus

Also Published As

Publication number Publication date
JP2908061B2 (en) 1999-06-21

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