Title:
PUSH-BUTTON GUIDE DEVICE FOR KEYBOARD
Document Type and Number:
Japanese Patent JPH01320715
Kind Code:
A
Abstract:
PURPOSE: To lessen push-button movement resistance and reduce the number of parts by guiding the guide stem of a push-button through the guide slot with taper of a boss and simultaneously separating disposing an spring actuator from the stem. CONSTITUTION: A cross stem 28 of a push button 26 is guided by a slot spreading toward the lower end of the boss of a push-button guide device integrated with a main frame, and simultaneously a spring actuator is separating provided from the stem 28 so that the friction resistance at the time of button 26 movement is decreased. With the depressing of the button 26 a main contact piece 54 integrated with the actuator 50 is fitted into a spring contact piece 80, the contact piece 80 is depressed together with the button 26 so that an electric circuit is closed. Thereby, a push-button guide in which movement resistance is small, the number of parts is comparatively few, and reliability is high is obtained.
Inventors:
CHIYAARUZU EMU KAARII
SUKOTSUTO JIEI RONGUROTSUDO
SUKOTSUTO JIEI RONGUROTSUDO
Application Number:
JP4635889A
Publication Date:
December 26, 1989
Filing Date:
February 27, 1989
Export Citation:
Assignee:
SMITH CORONA CORP
International Classes:
H01H13/14; G06F3/02; H01H13/12; H01H13/705; (IPC1-7): H01H13/14
Domestic Patent References:
| JPS5694864A | 1981-07-31 | |||
| JPS5965436U | 1984-05-01 | |||
| JPS5168309A | 1976-06-12 | |||
| JPS61112538U | 1986-07-16 |
Attorney, Agent or Firm:
Yuzo Yamazaki (3 others)