JP2005044645A - Cabinet integrally formed button - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems that a large loss cost is produced when the necessity of exchange at every cabinet is brought about if breakage or the like occurs at the button part, and furthermore in the case the button part is made to have a separate piece constitution, the cost is increased and mounting errors are apt to occur in the hinge button structure using elasticity integrally formed with a cabinet. <P>SOLUTION: In the hinge button structure to utilize resin elasticity integrally formed with a cabinet, by installing a thin wall part B beside the hinge button root R-shaped part which is equivalent to the fulcrum of elastic deformation, stress to be concentrated to the root R-shaped part is made dispersed and stress distortion is reduced. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a case-integrated button structure. In particular, the button is integrally formed by resin molding.

  As a button structure used in a conventional electronic device, there is generally a button structure using a part having a button structure different from a casing (see, for example, Patent Document 1). FIG. 3 shows a conventional button structure described in the above document.

  In FIG. 3, by pushing the push button portion 101, the push button portion 101 rotates with the thin portion 102 as a fulcrum, and the rotation trajectory draws an arc and comes into contact with the rotation stop member 103 to stop the push button portion 101. A switch operation configuration having a structure provides a configuration that can be integrally formed with the simplest two-sided mold. However, it is a separate part configuration from the case.

  If the button structure used in a conventional electronic device is used as a case-integrated button structure, for example, the structure shown in FIG. 4 is obtained.

In FIG. 4, the push button unit 201 formed integrally with the housing 200, the relay unit 202 that transmits the movement of the push button unit to the switch installed in the housing, the push button unit 201, and the housing 200 are connected. In the hinge button structure using resin elasticity provided with the connecting thin wall portion 204, the switch is operated by the deformation of the hinge button root R-shaped portion 203 and the thin wall portion 204, which are the fulcrum of elastic deformation.
Japanese Patent Laid-Open No. 11-149846

  However, in the conventional configuration, since the button portion has a separate piece configuration, there is a problem that the cost is high and an attachment error is likely to occur.

  In addition, the hinge button structure that uses the resin elasticity formed integrally with the housing has a problem that if the button part is broken, it is necessary to replace the entire housing, resulting in a large loss cost. It was.

  The present invention solves the above-described conventional problems, and in a hinge button structure using resin elasticity formed integrally with a housing, the stress concentrated on the hinge button root R-shaped portion serving as a fulcrum of elastic deformation is dispersed. An object of the present invention is to provide a case-integrated button structure that is less likely to be damaged by reducing distortion and has cost merit.

  In order to solve the above-mentioned problems, the invention described in claim 1 includes a push button unit formed integrally with a housing and a relay unit that transmits movement of the push button unit to a switch installed in the housing. In the hinge button structure using the provided resin elasticity, the stress concentrated on the hinge button root R-shaped portion serving as a fulcrum of elastic deformation is dispersed to reduce the stress strain, thereby making it difficult to break.

  The invention described in claim 2 is to reduce the stress strain as a whole by distributing the stress concentrated on the root R-shaped part to the other part by providing a thin part next to the hinge button root R-shaped part which is a fulcrum of elastic deformation. Can do.

  The invention described in claim 3 is such that the thickness of the thin portion is approximately 2/3 of the thickness of the thin portion connecting the push button portion and the housing, and the strength is improved without impairing the elastic deformation. And strain can be reduced by dispersing the stress.

  With the structure described above, according to the present invention, it is possible to obtain a button structure in which stress strain is reduced, it is difficult to break, and the cost is low.

(Embodiment 1)
Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 and 2 show a structure for providing a case-integrated button according to the present invention. A push button portion 1 formed integrally with the housing 10, a relay portion 2 that transmits the movement of the push button portion to a switch installed in the housing, and a thin portion that connects the push button portion 1 and the housing 10. In the hinge button structure using the resin elasticity provided with A4, in order to disperse the stress concentrated on the hinge button root R-shaped portion 3 which is a fulcrum of elastic deformation and reduce the stress distortion, a thin wall is formed beside the root R-shaped portion 3. By providing the part B5, the stress concentrated on the root R-shaped part 3 can be dispersed and the stress strain can be reduced.

  FIG. 2 is a front view and a side view of the case-integrated button structure of the present invention. The thickness of the thin part B5 is approximately 2/3 of the thickness of the thin part A4 connecting the push button part 1 and the housing 10, and the R of the root R-shaped part is made as large as possible and the relay part 2 By taking a large R below the connecting portion with the thin-walled portion A4, the strength can be improved and the stress can be dispersed and the stress strain can be reduced without impairing the elastic deformation.

  The casing-integrated button according to the present invention is useful as a casing-integrated button used in electronic devices and the like because it can reduce a stress strain, and can obtain a button structure that does not easily break and costs less.

The perspective view which shows the structure in the Example of this invention. 2 is a front view and a side view showing the configuration of the embodiment of the present invention. Front view showing configuration of conventional technology The perspective view which showed the structure of the prior art

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Push button part 2 Relay part 3 Root R shape part 4 Thin part A
5 Thin part B
DESCRIPTION OF SYMBOLS 10 Case 101 Push button part 102 Thin part 103 Rotation stop member 200 Case 201 Push button part 202 Relay part 203 Root R shape part 204 Thin part

Claims (3)

In a hinge button structure using resin elasticity having a push button portion formed integrally with a housing and a relay portion for transmitting the movement of the push button to a switch installed in the housing, it corresponds to a fulcrum of elastic deformation. Case-integrated button that reduces stress strain by dispersing stress concentrated on the R-shaped part of the hinge button root. The case-integrated button according to claim 1, wherein a stress is concentrated by dispersing a stress concentrated on the root R-shaped portion by providing a thin portion beside the hinge button root R-shaped portion, which is a fulcrum of elastic deformation. The case-integrated button according to claim 1, wherein the thickness of the thin portion is approximately 2/3 of the thickness of the thin portion connecting the push button portion and the housing.

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