KR200160550Y1 - Push button - Google Patents

Abstract

The present invention relates to a push button that can be used in combination with other products in the operation of the tact switch installed inside the case through a push button having a mechanical coupling structure to the case.

The present invention is characterized in that by connecting the extension member to the boss of the push button coupled to the recess of the case to operate the tact switch 40 installed in the case 30, the present invention is an extension member 20 Since the tact switch 40 installed in the case 30 can be operated according to the length of the), even if a separate push button 10 is not produced, it can be used interchangeably with other products with one push button.

Description

Pushbutton with compatibility

1 is an exploded perspective view of the push button according to the present invention is coupled to the case.

2 is a cross-sectional view of the push button coupled to the case according to the present invention.

3 is a cross-sectional view of the push button operating state according to the present invention.

<Description of the code | symbol about the principal part of drawing>

10: push button 14: coil spring

16: Boss 18: Center Pin

20: extension member 22: snap fit

24: tooth 30: case

32: fastening hole 34: through hole

36: guide hole 40: tact switch

42: groove

The present invention relates to a push button, and more particularly to a push button that can be used interchangeably with one push button in the case of other products in operating the tact switch installed in the case through the push button.

Generally, components are assembled inside various electrical and electronic products, and these components are operated by a circuit coupled to a printed circuit board (PCB). In performing such a circuit function, various switches are attached to the PCB so that the user can selectively control the function. These switches have various forms, but mainly tact switches are used.

Such a tact switch is pressed to the contact portion is electrically connected to the components and circuits arranged on the PCB to generate a function.

However, the tact switch is relatively small in size and fixed on the PCB, making it difficult to operate the contact from the outside of the product. Therefore, push buttons are mounted on the outside of the case to operate the contacts of the tact switch.

The push button is formed with a pressing pin extending rearwardly integrally therewith, the pressing pin is to touch the contacts of the tact switch when pressing the push button assembled in the case. Of course, the case is formed with a knob groove to which the push button is coupled.

At this time, the pressing pin is a bar extending from the back of the push button to the front of the tact switch, when the push button is released, the end of the pressing plate is positioned at a predetermined interval spaced in front of the tact switch, but the push button is pressed When the distance is retracted, the tact switch is pressed to cause the switching operation.

By the way, various electrical and electronic products often produce products in series. For example, in the case of a computer, a 486 computer, a 586 computer or a 486 computer in its class, or a 586 computer in its class may be a series computer having a difference in performance and structure depending on the processing speed, the memory capacity of the hard disk, and the presence or absence of multiple functions. Is being developed. Series computers have similar exteriors, but because each function is slightly different from each other, the push buttons that control the functions are also different. In particular, a computer having a multi-function is provided with a multi-function control push button on the case, while a computer without a multi-function does not require a multi-function control push button.

In this way, since the push button has a different structure due to its function and structural characteristics, even if it is a series product, each push button must be manufactured, and the case in which the push button is combined has to be designed accordingly. In particular, the pressure pin integrally formed on the push button to press the contacts of the tact switch may be long or short depending on the assembly structure of the tact switch, that is, the distance that the pressure pin moves so that the tact switches can be operated. It is more preferable if the length of the pressing piece can be selectively adjusted because it is a component.

Therefore, the present invention has been devised to solve the above problems.

The object of the present invention is to provide a separate extension member having various lengths in place of the pressing pin of the conventional push button, and the extension member is detachably installed on the back of the push button so that the distance from the push button to the tact switch is different Even to provide a push button that can be used interchangeably.

Push button having compatibility according to the present invention is recessed inward on the outer surface of the case is installed inside the tact switch, but the groove portion having a through hole and a guide hole and a fastening hole spaced apart from each other on the surface; A push button having a snap pit inserted into and fixed to the fastening hole, a hollow boss inserted into the through hole and spaced a predetermined distance from the contact point of the tact switch, and a center pin inserted to penetrate the guide hole; ; An extension member having various lengths coupled to the boss of the push button and extending to the front contact point of the tact switch; The push button may be achieved by an elastic means for imparting an elastic force to retreat from the recess.

Referring to the accompanying drawings an embodiment of the push button having the compatibility of the present invention configured as described above in detail the components as follows.

1 is an exploded perspective view showing a push button according to the present invention is coupled, the present invention is a push button 10, an extension member 20 attached to the push button, and the push button 10 is assembled It is composed of elastic means for returning the case 30 and the push button 10 to the original position.

Push button 10 is shown in an approximately oval shape, but the shape is shown for illustrative purposes only and can be modified in various shapes. The push button 10 has a pair of snap fits 22 formed on the edge of the rear surface thereof, and the boss 16 and the center pin 18 which are hollowed in a position spaced apart from each other vertically on the rear surface of the push button 10 are formed. It is.

Extension member 20 is inserted into the inner diameter of the boss 16 described above to extend the length of the boss 16 of the push button 10, but may be formed of a variety of materials, preferably a rubber material having a certain elastic force Is formed. In addition, a plurality of one-way teeth 24 having a locking step in the direction of the tact switch 40 are formed on one side end outer circumferential surface coupled to the boss 16.

At this time, the extension member 20 is formed to have a variety of different lengths at the same time, while having a diameter slightly pressed into the boss 16 of the push button 10, the push button 10 and the tact switch 40 According to the separation distance of the appropriate length is made to be used.

Therefore, when the extension member 20 is inserted into the boss 16 of the push button, the inclined surface of the one-way tooth 24 is formed in the direction in which the extension member 20 is inserted and contracted by its own elasticity. It is fitted in the (16), so that the coupled member 20 is coupled to the engaging jaw of the one-way tooth 24 in the separating direction is prevented to be easily pulled out.

The case 30 has a recess 42 corresponding to the push button 10, and the recess 42 has a through hole 34 and a guide through which the boss 16 and the center pin 18 are inserted. The ball 36 is formed. In addition, a fastening hole 32 into which the snap fit 22 is inserted is formed at the edge of the recess 42. For reference, a tact switch 40 attached to the PCB is positioned inside the through hole 34 as shown in FIG.

The elastic means is for returning the above-described push button 10 to its original position. In the present invention, the coil spring 14 is employed.

Referring to the accompanying drawings, the operation state and the effects thereof for the push button having a compatibility according to the present invention configured as described above are as follows.

As shown in FIGS. 2 and 3, one end of the extension member 20 having the unidirectional teeth 24 is inserted into the boss 16 of the pushbutton 10.

At this time, the inclined surface of the one-way tooth 24 is formed in the direction in which the extension member 20 is inserted and is fitted into the boss 16 while being contracted by the elasticity of the extension member 20 made of rubber material. The combined extension member 20 is thus prevented from being easily pulled out because the engaging jaw of the one-way tooth 24 is formed in the separating direction.

Subsequently, the coil spring 14 is positioned around the boss 16 or the extension member 20 of the push button 10, and the snap fit 22 is inserted into the fastening hole 32 when the snap fit 22 is inserted. Is pushed through the fastening hole 32 is caught on the inner surface of the push button 10 is assembled to the case (30). At this time, the extending member 20 is passed through the through hole 34, the center pin 18 is inserted into the guide hole (36).

When the push button 10 coupled to the extension member 20 is pushed backward as described above, an end of the extension member 20 presses the contact point of the tact switch 40 to operate the tact switch 40. When the pressurized pressure is removed, the coil spring 14 is returned to the original position.

As can be seen above, the extension member 20 coupled to the boss 16 is formed in various lengths, and when the extension member 20 having different lengths is combined into the boss 16, the tact switch 40 is replaced. Since it is possible to adjust the distance to the) can provide a push button having a compatibility that can operate the tact switch 40 of different products even without manufacturing the push button 10 of various forms.

Therefore, since the one-piece structure of the push button 10 is united, and the recess 42 of the case in which the push button 10 is mounted can also be manufactured in a single structure, the design is easy and the production cost is improved. Can be saved.

Claims (2)

A recess 42 having a through hole 34, a guide hole 36, and a fastening hole 32 spaced apart from each other by a predetermined distance on an outer surface of the case 30 in which the tact switch 40 is installed; A snap fitting 22 inserted into the fastening hole 32 and fixed, and an internally spaced boss 16 inserted into the through hole 34 and positioned in front of the tact switch 40 at a predetermined distance from the contact point. And a push button 10 having a center pin 18 inserted through the guide hole 36; An extension member 20 coupled to the boss 16 of the push button 10 and having various lengths extending to the front of the contact point of the tact switch 40; Push button having compatibility, characterized in that the push button 10 is composed of elastic means for imparting an elastic force to retreat from the groove portion (42). The method of claim 1, wherein the one-way tooth 24 having a locking step in the direction of the tact switch 40 is formed on the outer peripheral surface of one end of the extension member 20 coupled to the boss 16 of the push button 10 Push button with compatibility.