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Metal dome sheet, its mfg. method, and metal dome system

A manufacturing method, arched technology, applied in contact forms, emergency contact forms, movable contacts, etc., can solve problems such as increased number of parts, increased assembly processes, and increased costs

Inactive Publication Date: 2004-07-21
THE FUJIKURA CABLE WORKS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, after the film spacer 15 was introduced, the number of parts increased and the assembly process also increased, resulting in an increase in cost.
In addition, there arises a problem that the thickness and weight of the product increase
Of course, if the peripheral portion of the film gasket 15 is connected to the atmosphere, as in the above case, there will be a problem of ingress of moisture or dust in the atmosphere.

Method used

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  • Metal dome sheet, its mfg. method, and metal dome system
  • Metal dome sheet, its mfg. method, and metal dome system
  • Metal dome sheet, its mfg. method, and metal dome system

Examples

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Embodiment Construction

[0032] Embodiment of the invention

[0033] Figure 7 An example of a thin operation switch panel using the metal dome film of the present invention is shown.

[0034] The Switch Panel SP3 is basically the same as figure 1 The structure of the switch panel shown is substantially the same, however, the structure of the adhesive layer 23 formed on the side of the metal dome film 24A is quite different. In addition, the substrate 10, the electrode portion 11, the metal arch piece 12 and figure 1 The structure shown is the same.

[0035] In short, the metal dome sheet film 24A of the present invention is made of a film such as a polyethylene terephthalate film, such as Figure 8 , Figure 9 As shown, at least an adhesive layer removal portion 23a is provided on the adhesive layer 23 portion between two adjacent metal arcuate sheets 12, 12 to form a channel as an air release portion (channel) δ.

[0036] Thus, for example, when a user Figure 7 When the metal arched sheet 12...

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PUM

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Abstract

The present invention relates to a metal dome sheet wherein metal domes (12) arranged in electrode sections (11) on a substrate (10) are tightly adhered via a tacky layer (23) to the substrate (10) except the metal domes (10), and a tacky layer free section (23a) is provided in the tacky layer (23) between at least two adjacent metal domes (12). It is made to be the venting section delta, thereby a thin, light switch panel having excellent waterproof and dustproof properties is obtained.

Description

technical field [0001] The invention relates to a metal arch sheet film used for a thin operation switch panel on electronic equipment such as a mobile phone, a manufacturing method thereof and a metal arch sheet system. technical background [0002] Various proposals have been made for such a thin operation switch panel. For example, as figure 1 and Figure 5 structure shown. [0003] figure 1 In the switch panel SP1, a plurality of metal arc-shaped pieces 12 provided at the electrode portion 11 on the substrate 10 are fixed by a film 14 bonded to one side of the substrate 10 through an adhesive layer 13 . [0004] Also, here, the above-mentioned metal arched sheet 12 is usually made of elastic hemispherical metal arched sheet. For example, if figure 2 As shown, it is arranged at the electrode part 11, and the electrode part 11 is composed of a pair of arc-shaped electrode layers 11a and a straight strip-shaped electrode layer 11b extending therein (its thickness is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H13/48H01H11/00H01H13/70H01H13/702
CPCH01H2213/016H01H2205/026H01H13/7006H01H2203/02H01H2203/038H01H2223/003H01H2221/002H01H13/702H01H2205/016H01H11/00
Inventor 平井康司松川隆司二宫谦二腰原优智
Owner THE FUJIKURA CABLE WORKS LTD
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