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Key frame and cover member for push button switch

A technology of cover parts and key frames, which is applied in the direction of electrical components, emergency housings, electric switches, etc., can solve problems such as instability, poor key operation feeling, and position deviation of cover parts, so as to achieve the effect of easy embedding and preventing deformation

Inactive Publication Date: 2008-07-16
SHIN-ETSU POLYMER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if there is room in the size of the embedded part, the position of the cover member will be shifted and unstable, and the key operation feeling will be deteriorated.
In addition, the force to fix the cover is reduced due to positional deviation of the cover, which may cause the cover to come off during the product drop test after assembly.

Method used

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  • Key frame and cover member for push button switch
  • Key frame and cover member for push button switch
  • Key frame and cover member for push button switch

Examples

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Embodiment Construction

[0027] Next, embodiments of the key frame and the key cover member in the present invention will be described based on the drawings. In addition, in each figure, the same components are assigned the same symbols, and overlapping descriptions are omitted.

[0028] First, the configurations of the key cover member and the key frame in the embodiment will be described with reference to FIGS. 1 and 2 . As shown in FIG. 1 , the key cover member 1 has a plurality of hard resin key tops 3 and a key frame 4 supporting the bottom of the key cover member 1 . In addition, as shown in FIG. 2 , the key frame 4 has a hard base 41 and a key seat 42 .

[0029] The key top 3 shown in FIG. 1 is bonded to the surface of the key base 42 of the key frame 4 . The key top 3 is formed slightly larger than the inner periphery of the through hole so as not to sink into the through hole provided in the hard base 41 . In addition, the protruding dimension of the key top 3 is the stroke length, and ela...

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PUM

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Abstract

A key frame capable of being easily fitted into a product and that can be prevented from deforming in the fitting. Elastic projections (41p) elastically projecting outward are provided at the lower side and both lateral sides of a hard base (41). The elastic projections (41p) function as fixing members when a cover member for a push button switch is fitted into a housing of the product. Inside an elastic projection (41p) is provided a space (S). When the elastic projection (41p) is pressed from the outside, the space (S) enables the inwardly deformed elastic projection (41p) to enter into the space (S). As a result, the elastic projections (41p) projecting from an outer peripheral line of the hard base (41) can be elastically deformed so as to retract inside the hard base (41).

Description

technical field [0001] The present invention relates to a key frame and a key cover member used in mobile terminals such as mobile phones. Background technique [0002] Currently, mobile terminals such as mobile phones and PDAs are used in countries all over the world. Therefore, the characters displayed on the keys of the mobile terminal need to be printed in the languages ​​used in each country. In the prior art, the cover parts for keys are prepared according to the language printed on the keys, and then the cover parts for keys are inserted and fixed from the inside of the product casing. The following Patent Document 1 discloses a technique for inserting and fixing a key sheet from the inside of a product casing. FIG. 5 of Patent Document 1 shows that the key sheet 11 is inserted and fixed from the inside of the frame body 101a. The key sheet 11 is fixed to the frame body 101 a through the peripheral portion of the hard resin plate 14 to achieve a so-called claw acti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H13/04H01H13/70
CPCH01H2223/028H01H2223/014H01H2223/012H01H13/86
Inventor 小林隆人岩渕康男渡边公彦
Owner SHIN-ETSU POLYMER CO LTD
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