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 Film integrated key top

Details
Inventors: Kashino, Masayuki;
Assignee: Polymatech CP., Ltd. (JP)
Primary Examiner: Friedhofer; Michael
Assistant Examiner:
Attorney, Agent or Firm: McGlew and Tuttle, P.C.

A film integrated key top made by linking a plurality of key tops with a resin film, wherein the resin film linking key tops is formed bending more downward than the lower end of a pasted section with the key top body, the miniaturized film integrated key top allowing to reduce key top interval, prevent adjacent key tops from working together, and present a fine appearance.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention concerns a film integrated key top made by linking a plurality of key tops by a resin film, wherein the resin film linkage section between key tops is formed bending more downward than the lower end of pasted section with the key top body.
BRIEF DESCRIPTION OF DRAWINGS FIG.
1 shows a longitudinal cross section of an embodiment of the present invention; FIG.
2 shows a longitudinal cross section of an embodiment of the present invention; FIG.
3 shows a longitudinal cross section of a conventional film integrated key top; FIG.
4 shows a longitudinal cross section of a conventional film integrated key top; FIG.
5 shows a top view of the conventional film integrated key top; FIG.
6 shows a longitudinal cross section of an embodiment of the present invention; and FIG.
7 shows a schematic diagram of switch operation.
Now, the invention will be described in detail referring to attached drawings.
Embodiment 1 The film integrated key top is believed to be applied to a key top body 1 passing through a film 2 as shown in FIG.
1, or a key top body 4 integrated at its top face side with a resin film 5 formed in a same shape as the key top body top face side.
Embodiment 2 Still another embodiment of the present invention is a film integrated key top, wherein a key top body 4 made of resin, and a resin film 5 formed in a same shape as the key top body top face side, at the top face side of the key top body, and wherein the resin thickness of the key top body is formed of a partial thin section 14, a resin film linkage section 6 between key tops is formed bent more downward than a lower end of a section pasted to the thin section 14 of the key top body.
The switch stroke length can be adjusted conveniently according to the height h notched for thinning, as described in the switch operation in FIG.
7, by forming the resin thickness of the side adjacent to the key top into a partially thinned portion.
The cross section shape of the linkage section formed in bent form of the present invention may be composed of curved portions only, or combination of curved portions and straight portions; however, the composition only by curved portions allows to reduced further the interval between key tops



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