EP 0423924 A1 19910424 - Long traveling button switch with enhanced user feedback.
Title (en)
Long traveling button switch with enhanced user feedback.
Title (de)
Langhubtastschalter mit verstärktem Benutzer-Feedback.
Title (fr)
Touche de commutateur à grand déplacement et rétroaction accentuée.
Publication
Application
Priority
US 41303289 A 19890927
Abstract (en)
A pushbutton switch including a keycap (11) having a keycap top (11a) and a keycap plunger (11b), a retaining bezel (13) for guiding the keycap plunger and limiting the displacement thereof, a deformable elastomeric switch button (17) supporting a contact pad, and a printed circuit contact pattern (23) engageable by the contact pad when the switch button is deformed by the downward displacement of the keycap plunger. The deformation of the button switch tactile feedback, while impact of the keycap top against the retaining bezel provides audible feedback. The pushbutton switch is configured to limit the downward displacement of the keycap plunger to avoid excessive force on the printed circuit board.
IPC 1-7
IPC 8 full level
H01H 13/26 (2006.01); H01H 13/52 (2006.01); H01H 13/702 (2006.01); H01H 13/705 (2006.01)
CPC (source: EP)
H01H 13/705 (2013.01); H01H 2215/004 (2013.01); H01H 2215/03 (2013.01); H01H 2221/064 (2013.01)
Citation (search report)
- [Y] US 3668356 A 19720606 - KEKAS DENNIS H
- [Y] DE 8401137 U1 19840503
- [A] DE 8105649 U1 19810813
- [A] US 4496803 A 19850129 - SMITH WILLIAM D [US]
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0423924 A1 19910424; EP 0423924 B1 19950201; CA 2014651 A1 19910327; DE 69016569 D1 19950316; DE 69016569 T2 19950524; JP H0357837 U 19910604
DOCDB simple family (application)
EP 90308425 A 19900731; CA 2014651 A 19900417; DE 69016569 T 19900731; JP 10161190 U 19900927