KR20010056497A - An apparatus for operating tact switch of electronic appliances - Google Patents

Abstract

PURPOSE: An apparatus for pushing a tact switch of an electronic product is provided to efficiently operate each tact switch without interfering in each other by using a signal operation button when a plurality of tact buttons are installed on a narrow space. CONSTITUTION: A plurality of tact switches are installed to be distanced from each other by a predetermined angle, maintaining uniform intervals from a central point on a sub PCB. A button installing groove(22) having a predetermined size is formed on a portion of a surface of a housing. The portion corresponds to a position where the respective tact switches are installed. A plurality of push sections(30) have self elasticity and are formed on positions corresponding to the respective tact switches from the center on a bottom surface of the button installing groove. An operation button(40) is inserted into an inside of the button installing groove from an outside of the housing to be coupled to the button installing groove. The operation button(40) is integrally formed with an operation protrusion which is contacted with upper parts of the push sections along edge portions on an inner surface of the operation button.

Description

Tact switch pusher of electronic product {AN APPARATUS FOR OPERATING TACT SWITCH OF ELECTRONIC APPLIANCES}

The present invention relates to a tact switch pressing device of an electronic product, and more particularly, a plurality of tact switches in a narrow space for space utilization in a relatively small electronic product such as a digital video printer (DVP). The present invention relates to a tact switch pressing device of an electronic product, which can efficiently operate each tact switch without mutual interference by using a single operation button.

In general, various electronic products are provided with a main PCB for controlling all the functions of the device, and a plurality of function switch assemblies are installed at predetermined portions of the front or top of the housing to perform specific functions of the device.

These functional operation switch assemblies are usually fixedly installed on the inner side of the housing, and correspond to the sub-PCB electrically connected to the main PCB, the plurality of tact switches installed on the sub-PCB, and the installation positions of the respective tact switches. It consists of an operation button which is installed on the surface of the housing.

In such a function operation switch assembly, when each tact switch is provided at appropriate intervals and an operation button is provided for each of the tact switches, no problem occurs during operation.

However, as the size of the product is getting smaller and smaller as the recent trend, as the function becomes more complicated and more functional operation switches are required, it is possible to operate multiple tact switches using a single operation button in a narrow area. It is a situation that the configuration to do is required.

An object of the present invention is to use a single operation button in the case of installing a plurality of tact switches in a narrow space for space utilization in relatively small electronic products such as a digital video printer (DVP) It is to provide a tact switch pressing device for an electronic product that can efficiently operate a tact switch without mutual interference.

1 is a perspective view illustrating a state in which a tact switch pressing device of an electronic product according to the present invention is installed;

Figure 2 is an enlarged perspective exploded perspective view of Figure 1,

Figure 3 is a side cross-sectional view showing a coupling state of the tact switch pressing device of the electronic product according to the present invention,

Figure 4 is a side cross-sectional view showing an operating state of the tact switch pressing device of the electronic product according to the present invention.

*** Explanation of symbols for the main parts of the drawing ***

20: housing 22: button mounting groove

24: mounting hole 30: pressing piece

40: operation button 42: operation projection

44: hook piece 50: sub PCB

60: Tact switch.

In order to achieve the above object, the present invention provides an electronic device for selectively pressing a plurality of tact switches installed at the same angle while maintaining the same distance from the same center on the sub-PCB coupled to the rear surface of the housing. A tact switch pressing device of a product, comprising: a button mounting groove having a predetermined size formed on a surface of a housing corresponding to an installation position of the tact switch; A plurality of pressing pieces formed to have their own elastic force directed upward and downward at a position corresponding to the tact switch from the center of the bottom surface of the button mounting groove; The button is fitted into the interior of the button mounting groove from the outside of the housing, and has a feature consisting of an operation button formed integrally with the operation projection contacting the upper portion of the pressing piece along the edge of the inner surface.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a state in which the tact switch pressing device of the electronic product according to the present invention is installed, Figure 2 is an enlarged exploded perspective view of the main portion of FIG.

Referring to this, the tact switch pressing device according to the present invention is a plurality of pressing pieces 30 formed on a predetermined portion of the surface of the housing 20 constituting the electronic product 10, the portion formed with the pressing piece 30 It consists of an operation button 40 to be selectively pressed to each pressing piece 30 in a coupled state fitted to the top of the.

The rear surface of the housing 20 is equipped with a sub-PCB 50 for controlling the function.

On the sub-PCB 50, a plurality of switches are installed according to a predetermined arrangement. In a specific position on the sub-PCB 50, for example, to enable a special function such as setting a moving direction of a cursor, etc. The plurality of tact switches 60 are installed to be spaced apart by the same angle while maintaining the same distance from the same center point.

In this way, the button mounting groove 22 having a predetermined size and depth is formed on the surface of the housing 20 corresponding to the installation position of the plurality of tact switches 60 having a compact form in a narrow area.

On the bottom surface of the button mounting groove 22, a pressing piece 30 is installed at a position corresponding to the tact switch 60 one-to-one from its center.

Each of the pressing pieces 30 is integrally connected only with its center portion to the bottom surface, and the remaining circumference portion is formed in a cut state from the bottom surface is configured such that its outer end portion has its own elasticity in the vertical direction.

In addition, the operation button 40 is detachably fitted to the inside of the button mounting groove 22 formed on the housing 20, and the respective pressing pieces 30 are formed on the inner edge of the operation button 40. The manipulation protrusion 42 is in contact with the upper portion of the downward protrusion at regular intervals.

In order to allow the operation button 40 to be detachably coupled to the button mounting groove 22, the mounting holes 24 are formed at positions facing each other around the bottom surface of the button mounting groove 22 over a predetermined angle range. Correspondingly, a hook piece 44 fitted into the mounting hole 24 is protruded at a predetermined position on the bottom surface of the operation button 40.

The coupling state and the operation state of the tact switch pressing device of the present invention made as described above will be described.

Figure 3 is a side cross-sectional view showing a coupling state of the tact switch pressing device of the electronic product according to the present invention.

Referring to this, when the sub-PCB 50 is mounted on the bottom surface of the housing 20, the tact switch 60 is densely installed on the sub-PCB 50, and the button mounting groove is formed on the surface of the housing 20. It is located below the bottom surface of 22.

In this state, each hook piece 44 protruding to the bottom of the operation button 40 is rotated by a predetermined angle in a predetermined direction in a state of being fitted into the mounting hole 24 formed on the bottom surface of the button mounting groove 22. Then, the hook piece 44 is hooked to the lower edge of the mounting hole 24, the assembly is completed.

In the state in which the operation button 40 is assembled as described above, each operation protrusion 42 protruding along the bottom edge of the operation button 40 is positioned above the respective pressing pieces 40 in the button mounting groove 22. .

Figure 4 is a side cross-sectional view showing an operating state of the tact switch pressing device of the electronic product according to the present invention.

Referring to this, as shown in FIG. 3, the sub-PCB 50 is mounted on the bottom of the housing 20, and the tact switch 60 installed on the sub-PCB 50 has a bottom of the button mounting groove 22. Located in the lower portion of each pressing piece 30 formed in the surface, in the state that the operating projection 42 on the operation button 40 fitted in the interior of the button mounting groove 22 is located in the upper portion of the pressing piece 30 When the user presses a desired portion of the operation button 40, the tact switch 60 of the portion is pressed and operated according to the operation of the operation protrusion 40 protruding from the bottom of the corresponding portion to press the pressing piece 30. Will be.

Applying the present invention as described above, since the tact switch densely installed in a narrow area can be selectively operated using a single operation button, the space utilization of the housing is increased.

In addition, since the operation button is detachably fitted with respect to the button mounting groove, it can be easily replaced when the operation button is broken.

Claims (1)

In the tact switch pressing device of an electronic product for selectively pressing a plurality of tact switches installed at equal angles while maintaining the same distance from the same center point on the sub-PCB coupled to the rear surface of the housing, A button mounting groove having a predetermined size formed on a surface of the housing corresponding to the installation position of the tact switch; A plurality of pressing pieces formed so as to have their own elastic force directed upward and downward in a position corresponding one to one with the tact switch from the center of the bottom surface of the button mounting groove; Tact switch pressing device of the electronic product, characterized in that it is fitted into the button mounting groove from the outside of the housing, the operation button is formed integrally with the operation projection contacting the upper portion of the pressing piece along the edge of the inner surface .