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US 2009/0057121 A1Published application
Key Base, Key Sheet and Method of Forming Key Base
AssigneeSunarrow Ltd
InventorsMinoru Yoshida, Yoshitaka Kamata
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Abstract
The present invention has an object thereof is to provide a key base which can be thinned, a key sheet which can be thinned and a method of forming a key base which can be thinned. According to a first aspect, there is provided a key base comprising: a flexible film sheet; and a plurality of pressers made of a non-thermo-curing type material and formed integrally with the film sheet on the backside of the film sheet.
Claims10
A key base comprising:
- a flexible film sheet;
- and
- a plurality of pressers made of a non-thermo-curing type material and formed integrally with the film sheet on the backside of the film sheet.
A key sheet comprising:
- a flexible film sheet;
- a plurality of key tops arranged on the surface of the film sheet;
- and
- a plurality of pressers made of a non-thermo-curing type material and formed integrally with the film sheet in positions corresponding to those of the key tops on the backside of the film sheet.
1 more element
A method of forming a key base, comprising:
- a first step of supplying a non-thermo-curing type material to a mold having a concave portion in a desired position;
- a second step of supplying a flexible film sheet to the mold to which the non-thermo-curing type material has been supplied so that the backside of the film sheet faces downwards;
- and
- a third step of curing the non-thermo-curing type material to form pressers integrally with the film sheet on the backside of the film sheet.
1 more element
Dependencies are inferred from the claim text.