Expandable and compressible keyboard
First Claim
1. A keyboard comprising:
- a lower frame having an elastic member installed on the surface thereof;
an elevation plate installed on said lower frame capable of ascending or descending by an elastic force of said elastic member;
a pair of guide plates separately installed above said elevation plate capable of moving toward or away from each other in a horizontal direction and, said guide plates having a plurality of key holes and guides;
switch units each having switches and respectively installed on said lower frame, above said elevation plate and on a bottom surface of said guide plates; and
a linkage of key pad assemblies each installed to be capable of compressing or extending by being guided by said guides of said guide plates and having a key for operating a switch of said switch units directly or by inserting in said key holes of said guide plates.
1 Assignment
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Accused Products
Abstract
A keyboard is provided having a lower frame with an elastic member installed on the surface thereof. An elevation plate is installed on the lower frame capable of ascending or descending by an elastic force of the elastic member. A pair of guide plates are separately installed above the elevation plate capable of moving toward or away from each other in a horizontal direction and having a plurality of key holes and guides. Switch units are respectively installed on the lower frame, above the elevation plate and on the bottom surface of the guide plate, and a linkage of key pad assemblies are each installed, capable of compressing or extending by being guided by a guide of the guide plate and having a key for operating a switch of the switch unit directly or by inserting in a key hole of the guide plate.
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Citations
18 Claims
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1. A keyboard comprising:
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a lower frame having an elastic member installed on the surface thereof; an elevation plate installed on said lower frame capable of ascending or descending by an elastic force of said elastic member; a pair of guide plates separately installed above said elevation plate capable of moving toward or away from each other in a horizontal direction and, said guide plates having a plurality of key holes and guides; switch units each having switches and respectively installed on said lower frame, above said elevation plate and on a bottom surface of said guide plates; and a linkage of key pad assemblies each installed to be capable of compressing or extending by being guided by said guides of said guide plates and having a key for operating a switch of said switch units directly or by inserting in said key holes of said guide plates. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification