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Key-switches-for-computer-keyboards

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Key switches for computer keyboards

Details

Inventors: Chen, S. H.;
Assignee: Silitek Corporation (Taipei, TW)
Primary Examiner: Friedhofer; Michael
Assistant Examiner:
Attorney, Agent or Firm: Browdy and Neimark

A key switch includes a key base having a rectangular hole at the top, a conductive rubber cone received inside the key base at the bottom and supported on a circuit board, a plunger received in the rectangular hole and having a mounting slot at the top and two unitary spring strips extended from two opposite sides thereof and terminating in a respective hooked portion hooked on a respective retaining groove on the key base from the bottom, and a key cap having a hollow projecting rod fitted into the mounting slot on the plunger for permitting the plunger to be moved downward to trigger an electric contact on the circuit board through the conductive rubber cone upon each striking against the key cap.

DETAILED DESCRIPTION The present invention has been accomplished to provide key switches for computer keyboards which eliminates the aforesaid drawbacks.
According to the present invention, the key cap and the plunger are separately made.
The plunger is made of a springy material having a mounting slot at the top in the middle, and two spring strips respectively integrally extended downward from two opposite sides thereof in the middle and terminating in a respective hooked portion hooked on a respective retaining groove inside the key base.
The key cap has a hollow projecting rod on the inside fitted into the mounting slot causing the plunger fastened to the key cap.

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