JP3050128U - Multi-stage push switch - Google Patents

Abstract

(57) [Abstract] (with correction) [MEANS FOR SOLVING PROBLEMS] In a housing 11, at least two heights different from each other in a moving direction of a common terminal 27 and a moving body 12 are provided.
The movable piece 12 is provided with a conductive piece 17 at the tip of the moving body 12 so that the conductive piece 17 can pass over the common terminal 27 and at least one terminal 28 when the moving body 12 is pressed. A click mechanism 18 is provided for generating a click when the body 12 is pushed in according to the pushing amount. [Effect] The first-stage switch operation and the second-stage switch operation can be accurately distinguished, and the usability is dramatically improved.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an improved multi-stage push switch.

[0002]

[Prior art]

 As a multi-stage push switch, for example, Japanese Patent Application Laid-Open No. 5-300984 entitled "Multi-stage push button switch and a video game machine using this multi-stage push button switch" is known. According to the above technique, as shown in FIG. 3 of the publication, a fixed contact member 13 is attached to the bottom of a case body 4, a compression coil spring 16 is inserted through an insulating cylinder 14, and an end of the compression coil spring 16 is attached to the end of the compression coil spring 16. The intermediate member 8 is covered, the contact mounting member 2 is placed on the intermediate member 8 via the compression coil spring 15, the movable contact member 3 is mounted on one end of the contact mounting member 2, and the push button 1 is mounted on the other end of the contact mounting member 2. It is attached. The compression coil spring 16 is a spring having a larger spring constant than the compression coil spring 15, and the movable contact member 3 has movable contacts 3a, 3b, 3c.

When the push button 1 is pressed, first, the compression coil spring 15 having a small spring constant is compressed, the contact mounting member 2 and the movable contact member 3 move downward in the drawing, and the movable contacts 3a and 3b are fixed contact members. Touch 13 Further, by pressing the push button 1, the compression coil spring 16 having a large spring constant is compressed, the contact mounting member 2, the movable contact member 3 and the intermediate member 8 are moved downward in the drawing, and the movable contact 3c is moved to the fixed contact member 13. The contact is made to perform a two-stage motion switching operation.

[0004]

[Problems to be solved by the invention]

 However, in the above technique, when the movable contacts 3a, 3b, 3c come into contact with the fixed contact member 13, the movable contacts 3a, 3b, 3c only contact the fixed contact member 13, and there is no sliding movement. Therefore, there is a risk of contact failure. That is, since the fixed contact member 13 and the movable contacts 3a, 3b, 3c slide, there is no so-called self-cleaning effect of cleaning both contact portions. Also, the two-stage motion is embodied by a combination of a compression coil spring 16 having a large spring constant and a compression coil spring 15 having a small spring constant. The only difference is the pressing force of the push button 1. Therefore, it is difficult to distinguish between the first-stage operation and the second-stage operation.

Therefore, an object of the present invention is to provide a multi-stage push switch which can clearly recognize the distinction between multi-stage motions and has a high self-cleaning action.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, a first aspect of the present invention relates to a push switch of a type in which a moving body is mounted on a housing, a return spring is mounted on the moving body, contacts are switched by manually pressing the moving body, and the return is performed by a return spring. In the housing, a common terminal and at least two terminals having different heights in the moving direction of the moving body are provided, and a conductive piece is provided at a leading end of the moving body. It is characterized in that a click mechanism is provided so as to bridge between the common terminal and at least one terminal, and to generate a click according to a pressing dimension when the moving body is pressed.

[0007] By pushing the moving body, the conductive piece is bridged between the common terminal and at least one terminal, and a click is generated when the common terminal and at least one terminal become conductive through the conductive piece. Further, the moving body is pushed in, the conductive piece is bridged between the common terminal and the remaining terminals, and the common terminal and the remaining terminals are conducted through the conductive piece. Since the click is generated at the time of the first-stage switch operation, the distinction from the second-stage switch operation becomes clear, and the usability is dramatically improved.

The second aspect is characterized in that the conductive piece is a conductive ball. The conductive piece is made of a conductive ball to reduce the frictional force when the conductive piece comes into contact with two terminals having different heights in the moving direction of the moving body. Therefore, a multi-stage push switch with good operability can be obtained.

According to a third aspect of the present invention, the common terminal and the plurality of terminals are arranged on a circle having a diameter smaller than the diameter of the conductive ball. The common terminal and the plurality of terminals hit the conductive ball in order, and the reaction force from the common terminal and the plurality of terminals orthogonal to the moving direction of the moving object cancel each other, so that the conductive ball is guided to the center and the straightness is improved. Increase. Therefore, a stable switching operation can be maintained.

[0010]

[Embodiment of the invention]

 An embodiment of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of the reference numerals. FIG. 1 is a perspective view of a multi-stage push switch device according to the present invention. The multi-stage push switch device 1 includes a panel 2, a button holder 3 mounted on the panel 2, a nut 4 fitted on the button holder 3, a button 5 slidably mounted on the button holder 3, and a panel 5. , A plurality of mounting screws 7 for mounting the switch holder 6 to the panel 2 (... denotes a plurality, the same applies hereinafter), and a multi-stage pusher mounted to the switch holder 6. And a switch 10.

In detail, the panel 2 has a hole 2a for mounting the button holder 3 on a flat plate, and holes 2b for penetrating the mounting screws 7. The switch holder 6 is formed by forming a fitting portion 6a of the mounting screws 7 on the stepped sheet metal and opening a square hole 6b for mounting the multi-stage push switch 10.

FIG. 2 is an exploded perspective view of the multi-stage push switch device according to the first embodiment of the present invention. The multi-stage push switch 10 includes a housing 11, a movable body 12 movably mounted on the housing 11, a return spring 14 mounted between the movable body 12 and the housing 11, and a return spring mounted on the movable body 12. 14, a conductive ball 17 as a conductive piece attached to the moving body 12 via a compression spring 16, a click mechanism 18 provided between the housing 11 and the moving body 12, and a housing 11. And a terminal board 19 attached to the terminal board.

In detail, the housing 11 includes a housing body 11a, a flange 11b fitted to the switch holder 6 (see FIG. 1), and support claws 11c, 11c (fitted to the switch holder 6 (see FIG. 1)). On the other hand, not shown), a through hole 11d through which the moving body 12 penetrates, supporting portions 11e, 11e (one not shown) for stopping the terminal plate 19, a slide rail 11f on which the moving body 12 slides, and a click mechanism It comprises grooves 11g, 11g supporting eighteen components.

The moving body 12 includes a prismatic main body 12 a, a cylindrical part 12 b extending from one end of the main body 12 a, a convex piece 12 c provided at the tip of the cylindrical part 12 b, and a cylindrical part 12 b. A circumferential groove 12d formed on the outer periphery, a mounting portion 12e of a compression spring 16 provided inside the main body portion 12a, a support portion 12f of the conductive ball 17 provided at an end of the main body portion 12a, and a click. And a support hole 12g for a component of the mechanism 18.

The click mechanism 18 includes a step cam plate 22 attached to the slide grooves 11 g and 11 g of the housing 11, a compression spring 23 inserted into the support hole 12 g of the moving body 12, and the compression spring 23 and the step cam plate 22. And a steel ball 24 interposed therebetween. More specifically, the stepped cam plate 22 is a flat sheet metal, and has fitting portions 22a, 22a fitted in the grooves 11g, 11g of the housing 11 in the longitudinal direction, and a click is generated when the steel ball 24 hits. The step 22b to be formed is formed in the thickness direction.

FIG. 3 is a sectional view of the multi-stage push switch according to the first embodiment of the present invention, and shows an assembled state of the multi-stage push switch 10. The compression spring 16 indicates that the compression spring 16 has been fitted to the mounting portion 12e of the moving body 12. The conductive balls 17 are supported between the support portions 12f, 12f and the compression spring 16. The return spring 14 is inserted between the movable body 12 and the housing 11 and indicates that the return spring 14 has been stopped by the retaining ring 15. The click mechanism 18 inserts the compression spring 23 into the support hole 12 g of the housing 11, and indicates that the steel ball 24 has been pressed against the stepped cam plate 22 by the compression spring 23.

FIGS. 4A and 4B are explanatory views of a terminal plate of the multistage push switch according to the first embodiment of the present invention, wherein FIG. 4A shows a plan view and FIG. 4B shows a side view. . The terminal plate 19 includes a base plate 26, a common terminal 27 attached to the base plate 26, a first terminal 28 as a terminal attached to the base plate 26, and a forked second terminal 28 as a terminal attached to the base plate 26. It has two terminals 29. The base plate 26 is provided with convex portions 26a, 26a that fit into the support portions 11e, 11e of the housing 11 shown in FIG. The common terminal 27 and the first terminal 28 are terminals having the same length of protrusion from the upper surface of the base plate 26. The first terminal 28 is a terminal that protrudes from the upper surface of the base plate 26 longer than the second terminal 29. That is, the first terminal 28 and the second terminal 29 have different heights in the moving direction of the moving body 12 (see FIG. 3), and the first terminal 28 is compared with the second terminal 29. Long terminal. The common terminal 27, the first terminal 28, and the second terminal 29 are arranged on a circle having a diameter smaller than the diameter of the conductive ball 17.

The operation of the multi-stage push switch 10 described above will now be described. 5 (a) to 5 (c) are operation explanatory diagrams of the multi-stage push switch of the first embodiment according to the present invention. (A) shows the state of the multi-stage push switch 10 before operation. The conductive ball 17 and the common terminal 27, the first terminal 28, and the second terminal 29 are not in contact with each other, and the steel ball 24 of the click mechanism 18 is not in contact with the step portion 22 b of the step cam plate 22. Indicates that

In (b), by pushing the moving body 12 as shown by the arrow, the conductive ball 17 comes into sliding contact with the common terminal 27 and the first terminal 28, and these terminals 27, 28 become conductive. It conducts through the ball 17. Further, the click mechanism 18 is configured such that the steel ball 24 is located at the step 22 b of the step cam plate 22, and a click occurs when the steel ball 24 gets over the step 22 b, and the click between the common terminal 27 and the first terminal 28. The switch operation of the first stage is terminated by clearly recognizing that has been conducted.

In (c), when the moving body 12 is further pushed as shown by the arrow, the conductive ball 17 comes into contact with the common terminal 27, the first terminal 28, and the second terminal 29, and these terminals 27, 28, Conduction is conducted between the electrodes 29 through the conductive balls 17. This completes the second-stage switch operation. In addition, since the conductive ball 17 comes into contact with the common terminal 27, the first terminal 28, and the second terminal 29 while sliding, there is a self-cleaning action, and there is no fear of a contact failure.

FIG. 6 is a sectional view of a multi-stage push switch according to a second embodiment of the present invention. Note that the same reference numerals are used for the same parts as in the first embodiment, and detailed description is omitted. The multi-stage push switch 30 includes a housing 11, a movable body 12 movably mounted on the housing 11, a return spring 14 mounted between the movable body 12 and the housing 11, and a return spring mounted on the movable body 12. 14, a conductive ball 17 as a conductive piece attached to the moving body 12 via a compression spring 16, a click mechanism 38 provided between the housing 11 and the moving body 12, and a housing 11. And a terminal plate 39 attached to the terminal plate.

The click mechanism 38 includes a step cam plate 42 attached to the housing 11, a compression spring 23 inserted into the support hole 12 g of the moving body 12, and an interposition between the compression spring 23 and the step cam plate 42. And the steel balls 24 that have been made. More specifically, the step cam plate 42 is a flat plate, and has a first step 42b that generates a click when the steel ball 24 hits in the thickness direction and a second step 42c that generates the next click. It was done. The step cam plate 42 is made of sheet metal or resin.

The terminal plate 39 includes a base plate 46, a common terminal 27 attached to the base plate 46, a first terminal 28 attached to the base plate 46, and a second terminal 49 as a terminal attached to the base plate 46. And a third terminal 51 as a terminal attached to the base plate 46. The common terminal 27 and the first terminal 28 are terminals having the same length of protrusion from the upper surface of the base plate 46, and the first terminal 28, the second terminal 49, and the third terminal 51 are connected to the base plate 46. The first terminal 28, the second terminal 49, and the third terminal 51 are short terminals in the order of protrusion from the upper surface.

The multi-stage push switch 30 pushes the moving body 12 downward in the drawing, so that the conductive ball 17 first conducts to the common terminal 27 and the first terminal 28, and the steel ball 24 moves to the first step portion 42b. Position and generate a click. Next, the conductive ball 17 conducts to the common terminal 27, the first terminal 28, and the second terminal 49, and the steel ball 24 is positioned at the second step portion 42c to generate a second click. Further, when the moving body 12 moves downward in the drawing, the conductive balls 17 conduct to the common terminal 27, the first terminal 28, the second terminal 49, and the third terminal 51, and perform a three-stage motion switching operation. Things.

Although the first embodiment shows the switch of the two-stage operation and the second embodiment shows the switch of the three-stage operation, it is not limited to the switch of the two-stage operation and the three-stage operation. Includes multi-stage switches.

[0026]

[Effect of the invention]

 The present invention has the following effects by the above configuration. According to the first aspect of the present invention, the movable piece is pushed and the conductive piece is hung over the common terminal and at least one terminal, and a click occurs when the common terminal and the at least one terminal are electrically connected via the conductive piece. Then, the moving body is pushed in and the conductive piece is bridged between the common terminal and the remaining terminal, so that the common terminal and the remaining terminal are electrically connected via the conductive piece. The distinction between this and switch operation is clarified, and usability is dramatically improved. In addition, since the conductive piece comes into contact with the common terminal or at least one terminal while sliding, there is a self-cleaning action, and there is no fear of a contact failure.

According to a second aspect of the present invention, the conductive piece is made of a conductive ball, and the frictional force when the common terminal and the two terminals having different heights in the moving direction of the moving body contact each other is reduced. A good multi-stage push switch can be obtained.

According to a third aspect of the present invention, the common terminal and the plurality of terminals hit the conductive ball in order, and the reaction force from the common terminal and the plurality of terminals perpendicular to the moving direction of the moving object cancel each other, so that the conductive ball is formed. Guided to the center, straightness increases. Therefore, stable switching operation can be maintained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a multi-stage push switch device according to the present invention.

FIG. 2 is an exploded perspective view of the multi-stage push switch device according to the first embodiment of the present invention.

FIG. 3 is a sectional view of the multistage push switch according to the first embodiment of the present invention;

FIG. 4 is an explanatory view of a terminal plate of the multistage push switch according to the first embodiment of the present invention;

FIG. 5 is a diagram illustrating the operation of the multi-stage push switch according to the first embodiment of the present invention;

FIG. 6 is a sectional view of the multi-stage push switch according to the second embodiment of the present invention;

[Explanation of symbols]

10, 30: Multi-stage push switch, 11: Housing, 12: Moving body, 14: Return spring, 17: Conductive piece (conductive ball), 18, 38: Click mechanism, 27: Common terminal, 28: Terminal (No. 1 terminal), 29, 49 ... terminal (second terminal), 51 ... terminal (third terminal).

Claims (3)

[Utility model registration claims] 1. A push switch of a type in which a moving body is mounted on a housing, a return spring is mounted on the moving body, and the moving body is manually pressed to switch contacts and return with a return spring. A terminal and at least two terminals having different heights in a moving direction of the moving body are provided, a conductive piece is provided at a tip of the moving body, and when the moving body is pressed, the conductive piece has a common terminal and at least one terminal. And a click mechanism for generating a click according to the size of the push when the moving body is pushed. 2. The multi-stage push switch according to claim 1, wherein said conductive piece is a conductive ball. 3. The multi-stage push switch according to claim 2, wherein the common terminal and the plurality of terminals are arranged on a circle having a diameter smaller than a diameter of the conductive ball.