JP4526077B2 - Push button switch - Google Patents

Description

  The present invention relates to a push button switch including a substrate and an operation element arranged on the substrate.

In general, there is known a push-button switch having a configuration in which a contact provided on a substrate and a moving contact provided on the operation element come into contact with each other by pushing an operation element arranged on the substrate toward the board. The operation element includes a rod-shaped portion having a moving contact on the bottom surface thereof, a base end portion that supports the operation element, and a flexible portion that connects the rod-shaped portion and the base end portion. When the rod-shaped portion is pressed, When the flexible portion is elastically deformed and the pressing force is released, the flexible portion returns to the initial state by the elastic force of the flexible portion. This type of push button switch is also disclosed in Patent Documents 1 and 2.
Japanese Utility Model Publication No. 58-180495 JP 2003-132762 A

  Now, with respect to the above-described push button type switch, it is necessary to accurately assemble the substrate and the operation element, and to maintain good separation between the contact point of the substrate and the moving contact point of the operation element. In this respect, the operation element generally uses a rubber member as a whole, and a case where a slight positional deviation occurs is remarkable. For example, as described in Patent Document 1, when a convex portion is provided on the operation element and a hole portion for inserting the convex portion is provided on the substrate, since the convex portion is made of rubber, stable positioning is achieved. In addition, there is an inconvenience that a fitting state cannot be obtained. Further, as described in Patent Document 2, when the operator is pressed onto the substrate with a predetermined cover, the substrate, the operator, and the cover are positioned and assembled at the same time. There is inconvenience that it is bad. The present invention has been made in view of such circumstances, and an object of the present invention is to obtain a push button switch having improved assembly accuracy and workability.

The invention described in claim 1 of the present application includes a substrate and an operation element disposed on the substrate, and the contact point provided on the substrate and the operation element by pressing the operation element toward the substrate. The operating element is in contact with the moving contact, and the operating element has a rod-shaped part provided with the moving contact on a bottom surface thereof, a base end part supporting the operating element, the rod-shaped part and the base end In the push button type switch having a flexible portion that connects the portion, a guide member that is inserted through the rod-like portion and fitted to the base end portion is provided, and a convex portion is provided at the base end portion. The guide member is provided with a hole for inserting the convex portion of the base end portion, and the lid of the device using the push button switch covers the convex portion of the base end portion and covers the tip of the rod-shaped portion. The protrusion at the base end is exposed to the guide. Is constituted by a length precepts extending from the hole of the member, the fitting state between the guide member and the proximal portion at an inclination of the portion extending from the hole of the guide member is set to be distinguishable It is a push button type switch.

  The invention described in claim 2 of the present application is the pushing device according to claim 1, wherein the guide member is provided with a convex portion, and the base end portion is provided with a hole portion for inserting the convex portion of the guide member. It is a button type switch.

  The invention described in claim 3 of the present application is the push button switch according to claim 2, wherein the board is provided with a hole portion into which the convex portion of the guide member is inserted.

  According to the present invention, it is possible to obtain a push button type switch with improved assembly accuracy and workability.

  Embodiments of the present invention will be described below with reference to the drawings. The push button switch 100 of this example is provided on the back of the radio wave correction type alarm clock 1 shown in FIGS. The function as a switch is not particularly limited, but in this example, an operation related to reception of radio waves or control thereof is performed. The push button switch 100 includes a substrate 200, an operation element 300, and a guide member 400, and a radio wave receiving antenna 12 is mounted on a support 11 having a predetermined shape provided inside the timepiece 1. It is fixed together. From the back cover 10 of the timepiece 1, the tip of a first rod-like portion 311 and the tip of a second rod-like portion 312 described later are exposed. In addition, the 1st rod-shaped part 311 shown in the figure becomes the height which penetrates the back cover 10, and the 2nd rod-shaped part 312 becomes the height which stays inside the back cover 10. FIG. This is a configuration that takes into account operational convenience for the function of the switch.

  As shown in FIGS. 5 to 8, the push button type switch 100 uses the bolt 13 to fix the antenna 12 and the substrate 200 to the support 11, and further attaches the operating element 300 to the guide member 400. The guide member 400 is fixed and assembled to the support 11 using At the main points of the support 11, the antenna 12, the substrate 200, and the guide member 400, a through hole through which the bolt 13 is inserted and a female screw portion into which the bolt 13 is screwed are provided.

  The operation element 300 is a rubber member entirely formed by injection molding, and has a first rod-shaped part 311 and a second rod-shaped part 312 provided with a moving contact B on the bottom surface, and a base end part that supports the operation element. 320, and a first flexible portion 331 and a second flexible portion 332 that connect the rod-like portions 311 and 312 and the base end portion 320, respectively. The push button type switch 100 pushes each of the bar-shaped portions 311 and 312 toward the substrate 200, thereby causing the contact A printed on the important points of the substrate 200, the bottom surface of the first bar-shaped portion 311, and the second bar-shaped portion 312. The movable contact B provided on the bottom surface is in contact with each other. The flexible portions 331 and 332 are elastically deformed when the rod-shaped portions 311 and 312 are pressed, and the flexible portions 331 and the flexible portions 331 and 332 are released when the pressing force is released. , 332 returns to the initial state.

  The guide member 400 is a member that is inserted through the rod-like portions 311 and 312 of the operation element 300 and is fitted to the base end portion 320 of the operation element 300. The guide member 400 is provided with a first guide hole 411 and a second guide hole 412 through which the first rod-shaped portion 311 and the second rod-shaped portion 312 are inserted, respectively.

  The guide member 400 is provided with a convex portion 420 that protrudes toward the substrate 200, and the base end portion 320 of the operating element 300 and the substrate 200 are provided with a hole portion 340 into which the convex portion 420 of the guide member 400 is inserted. , 210 are provided.

  Further, the base end portion 320 of the operation element 300 is provided with a convex portion 350 protruding in the direction opposite to the substrate 200, and the guide member 400 has a hole for inserting the convex portion 350 of the base end portion 320. A portion 430 is provided.

  That is, the base end portion 320 and the guide member 400 of the operation element 300 insert the convex portion 420 of the guide member 400 into the hole 340 of the base end portion 320 and the convex portion 350 of the base end portion 320. By being inserted into the holes 430, the two are fitted together. Then, the substrate 200 and the operator 300 are assembled by inserting the distal end portion of the convex portion 420 of the guide member 400 extending from the hole portion 340 of the base end portion 320 into the hole portion 210 of the substrate 200. According to such a configuration, the assembly accuracy of the operation element 300 with respect to the substrate 200 can be reliably improved. Further, since the operating element 300 can be assembled after being fitted to the guide member 400, there is also an advantage that the assembling work becomes easy.

  In the case of this example, the convex portion 350 of the base end portion 320 has a length that extends to some extent from the hole portion 430 of the guide member 400, and the base end portion 320 and the guide member 400 are inclined by the inclination of the extended portion. Can be discriminated. That is, if the fitting is made correctly, the direction of the tip of the convex portion 350 coincides with the insertion direction with respect to the hole 430, but if the fitting is made incorrectly, the tip of the convex portion 350 The direction will shift. The fitting state can be corrected by pulling the convex portion 350 or the like.

  As described above, the push button type switch of the present example is improved assembling accuracy and workability by providing a guide member that fits with the operation element, and is suitable as a switch for an alarm clock. Can be used. In addition, it is needless to say that the configuration of each part in the present example can be appropriately changed in design within the technical scope described in the claims, and is not limited to that illustrated in the drawings.

  The push button switch of the present invention can be suitably used as a switch provided in various products including an alarm clock.

It is a front view which shows the alarm clock concerning the Example of this invention. It is a rear view which shows the alarm clock according to the Example of this invention. It is a rear view which concerns on the Example of this invention and shows the inside of an alarm clock. FIG. 4 is a side sectional view showing the inside of the alarm clock according to the embodiment of the present invention, and is a sectional view taken along line XX of FIG. It is a side sectional view showing a push button type switch concerning an example of the present invention. It is an exploded view of a side sectional view showing a pushbutton switch according to an embodiment of the present invention. It is explanatory drawing which concerns on the Example of this invention, (a) is the front view, (b) is a side view, (c) is a rear view, (d) is a top view, (e) It is a bottom view. It is explanatory drawing which concerns on the Example of this invention, (a) is the front view, (b) is a longitudinal cross-sectional view which passes along the guide hole center, (c) is a rear view, (d) is a hole. The cross-sectional view which passes along the center of a part, (e) is a bottom view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Alarm clock 10 Back cover 11 Support body 12 Antenna 13 Bolt 100 Push button type switch 200 Board | substrate 210 Hole part 300 Manipulator 311 1st rod-shaped part 312 2nd rod-shaped part 320 Base end part 331 1st flexible part 332 2nd possible Bending portion 340 Hole portion 350 Protruding portion 400 Guide member 411 First guide hole 412 Second guide hole 420 Protruding portion 430 Hole portion A contact B Moving contact

Claims (3)

A substrate and an operation element disposed on the substrate, and the contact provided on the substrate and the moving contact provided on the operation element come into contact with each other by pressing the operation element toward the substrate. And
The operating element has a rod-shaped part provided with the moving contact on the bottom surface thereof, a base end part that supports the operating element, and a push button that includes a flexible part that connects the rod-shaped part and the base end part. In the type switch,
While inserting the rod-shaped part, provided a guide member that fits the base end part,
The base end portion is provided with a convex portion, and the guide member is provided with a hole portion for inserting the base end portion convex portion,
The lid of the device using the push button switch exposes the tip of the rod-shaped part and covers the convex part of the base end part,
Convex portions of the proximal portion is constituted by a length precepts extending from the hole of the guide member,
A push button switch, characterized in that a fitting state between the base end portion and the guide member can be determined by an inclination of a portion extending from the hole portion of the guide member.   2. The push button switch according to claim 1, wherein the guide member is provided with a convex portion, and the base end portion is provided with a hole for inserting the convex portion of the guide member. 3. The push button switch according to claim 2, wherein the board is provided with a hole for inserting the convex portion of the guide member.

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