KR20160035792A - Push swich apparatus - Google Patents

Abstract

The push switch device according to the present invention includes a movable unit movable in a linear direction, a rotating unit rotated by the moving force of the movable unit, a guide unit transmitting the movable force of the movable unit to the rotating unit, And a terminal unit for converting an electrical contact point according to the turning radius of the rotating unit to generate an electrical signal. It is possible to precisely control the rotation of the rotary unit by such a configuration.

Description

[0001] PUSH SWICH APPARATUS [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push switch device, and more particularly, to a push switch device capable of implementing an accurate on / off operation.

In general, a push switch is a switch mainly used where a relatively low voltage is used, and is mainly used for operation of an automobile interior light. This push switch converts the push operation into a rotation operation and generates an ON / OFF signal according to the electrical contact state.

Incidentally, in the push switch, when the pushing operation is performed to change the turning operation, an error of the sliding movement angle is generated as the turning radius is not correct. Such an error in the contact movement angle of the push switch causes an on / off failure of the push switch, which causes a decrease in the reliability of the user. Accordingly, in recent years, research for accurate on / off control of the push switch has been continuously performed by precise control of the rotation operation linked to the push operation of the push switch.

-. Korean Patent No. 10-0927253 (Applicant: Kadama Korea Co., Ltd.)

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a push switch device in which precise control of a contact moving angle in conjunction with a push operation is easy.

According to an aspect of the present invention, there is provided a push switch device including a movable unit movable in a linear direction, a rotating unit rotated by a moving force of the movable unit, a guide unit transmitting the moving force of the movable unit to the rotating unit, A fixed unit for fixing the rotated posture of the rotary unit and a terminal unit for converting an electrical contact according to a turning radius of the rotary unit to generate an electrical signal.

According to one aspect of the present invention, the movable unit includes a movable body capable of linearly moving in both directions in the moving direction and the returning direction, and an elastic body for returning the movable body to the initial position.

According to one aspect, the guide unit includes a guide member supporting the movable unit and interlocking with the movement of the movable unit, and an interference protrusion protruding from the outer surface of the guide member and interfering with the rotation unit.

According to one aspect of the present invention, the rotating unit includes: a rotation protrusion having a slanting inclined surface contacting with the interference protrusion moving in the movable direction in association with the movement of the movable unit in the moving direction in which the movable unit is pressed; And a rotary support rotated by contact between the projection and the rotation projection.

According to one aspect, the interference protrusions are provided on the outer circumferential surface of the guide member so as to be equidistantly spaced from each other in the direction of 90 degrees, and the rotation protrusions are equally spaced from each other in the 45 degree direction on the outer circumferential surface of the rotatable supporter.

According to one aspect of the present invention, there is provided a housing unit including upper and lower housings which are coupled to each other to support an assembly of the movable unit, the movable unit, the rotation unit, the guide unit and the terminal unit, And a second fixing thread provided on the lower housing to face the first fixing thread and engaged with the first fixing thread.

According to one aspect of the present invention, the terminal unit includes a movable terminal provided in the rotary unit and interlocked with the rotation of the rotary unit, and a contact terminal selectively contacted with the rotation of the movable terminal to generate an on / off signal .

A push switch device according to a preferred embodiment of the present invention includes a movable unit movable in both directions in a linear direction, a rotating unit rotated by a moving force of the movable unit, A guide unit for generating a rotational force, and a terminal unit for generating an ON / OFF signal by converting an electrical contact according to the rotation radius of the rotation unit.

According to one aspect of the present invention, the guide unit includes a guide member supporting the movable unit and interlocking with the movement of the movable unit, and an interference protrusion protruding from the outer surface of the guide member to interfere with the rotation unit, A rotating projection having an inclined rotationally sloping surface in contact with the interference projection, and a rotating supporter supporting the rotating projection and rotated by contact between the interfering projection and the rotating projection.

According to one aspect, the interference protrusions are provided on the outer circumferential surface of the guide member such that they are equally spaced from each other in the direction of 90 degrees, and the rotation protrusions are equally spaced from each other in the 45 degree direction on the outer circumferential surface of the rotatable supporter.

According to one aspect of the present invention, there is provided a housing unit including upper and lower housings coupled to each other to support assembly of the movable unit, the movable unit, the rotary unit, the guide unit, and the terminal unit, And a fixing unit for fixing the housing unit to the housing unit.

According to one aspect, the fixed unit includes a first fixed thread provided on the rotary support and a second fixed thread provided on the lower housing to face the first fixed thread.

According to the present invention having the above-described configuration, first, as the guide unit rotates the rotating unit by transmitting the moving force of the moving unit to the rotating unit, the guide unit and the rotating unit are rotated together with the moving unit It is possible to transmit the stable operation force in comparison with the method, and it becomes possible to precisely control the rotation angle of the rotation unit.

Second, due to the stable transmission of the driving force to the rotating unit, the return interference due to the release of the pressing force can be suppressed.

Third, since the fixed unit that fixes the rotated posture of the rotary unit is provided, it is possible to fix the posture of the push switch device against an external force such as vibration, thereby preventing malfunction.

1 is a perspective view schematically showing a push switch device according to a preferred embodiment of the present invention,
FIG. 2 is an exploded perspective view schematically showing the push switch device shown in FIG. 1,
3 is a perspective view schematically showing a mutual engagement state of the rotation unit, the guide unit and the fixed unit of the push switch device shown in FIG. 1,
FIG. 4 is a view schematically showing an initial state of the push switch device shown in FIG. 1, and FIG.
5 is a view schematically showing a push and a rotation state of the push switch device shown in FIG.

Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

1 and 2, a push switch device 1 according to a preferred embodiment of the present invention includes a movable unit 10, a rotation unit 20, a guide unit 30, a fixed unit 40, Unit 50 as shown in FIG.

For reference, the push switch device 1 explained in the present invention will be described by way of example for controlling ON / OFF of an interior lamp installed inside a vehicle, but it is not limited thereto.

The movable unit 10 is movable in a linear direction. The movable unit (10) includes a movable body (11) and an elastic body (12).

The movable member 11 is movable in both directions in the moving direction P1 and the returning direction P2. In the present embodiment, the movable member 11 has a cylindrical shape and is vertically movable. However, the present invention is not limited thereto.

The elastic body 12 rotates the movable body 11 to an initial position. Such an elastic body 12 includes a coil spring for elastically pressing the movable body 11 in the return direction P2 as shown in Fig.

For reference, the movable unit 10 is installed in a housing unit 60 including upper and lower housings 61 and 62 coupled to each other. Here, the upper and lower housings 61 and 62 have a hollow installation space by mutual coupling, so that the movable unit 10, the rotation unit 20, the guide unit 30, the fixed unit 40, Thereby supporting the assembly of the unit 50. At this time, the movable body 11 is supported by the movable stopper 13 provided at the lower end so as not to be separated from the upper housing 61 by the elastic pressing force of the elastic body 12, and a part of the upper end is supported by the upper housing 61 Exposed.

The rotating unit 20 is rotated by the moving force of the movable unit 10. [ To this end, the rotation unit 20 includes a rotation projection 21 interfering with the movable unit 10 and a rotation support 22 interlocking with the rotation of the rotation projection 21. A detailed description of the rotatable projection 21 and the rotary support 22 will be described later in detail together with the configuration of the guide unit 30. [

The guide unit (30) transfers the moving force of the movable unit (10) to the rotating unit (20). The guide unit 30 moves bidirectionally in the moving direction P1 and the returning direction P2 in conjunction with the movement of the movable unit 10 in the moving direction P1 and the returning direction P2, And an interference protrusion 32 protruding from the outer surface of the guide member 31 and interfering with the rotation unit 20. [

For reference, the interference protrusions 32 are provided on the outer circumferential surface of the guide member 31 so as to be equidistantly spaced from each other in the direction of 90 degrees. The rotation protrusions 21 are equally spaced from each other in the direction of 45 degrees to the outer circumferential surface of the rotary support 22. [

The guide member 31 is in contact with the lower end of the movable member 11 and interlocks with the movable member 11, as shown in Fig. The guide member 31 is also provided with a guide stopper 33 so that even if the guide member 31 is elastically pressed by the elastic body 12 in the returning direction P2 interlocking with the movable body 11, It does not fall off.

The interference protrusion 32 is in contact with the rotation protrusion 21 of the rotation unit 20 described above. 3, the rotation protrusion 21 has an inclined rotation slope 23 contacting the interference protrusion 32 moving in the movement direction P1, so that the interference projection 32 is inclined with respect to the rotation slope 23 to rotate the rotary support 22 supporting the rotary protrusion 21. The interference protrusions 32 are provided with the guide slopes 34 which are in contact with the rotation slopes 23 so that the rotation unit 20 is smoothly brought into contact with the interference fits 32 and the rotation projections 21, It is preferable that the rotation is performed.

The fixed unit (40) fixes the rotated posture of the rotary unit (20). 3, the fixing unit 40 includes a first fixing screw 41 provided on the rotary support 22 and a second fixing screw 41 provided on the lower housing 62 so as to face the first fixing screw 41. [ And a fixed thread 42. The fixed unit 40 is provided with the first and second fixed screws 41 and 42 that are mutually engaged to fix the rotated position without interfering with the rotating operation of the rotating unit 20. [ As the fixed unit 40 fixes the rotated posture of the rotary unit 20, malfunction can be prevented.

The terminal unit 50 converts the electrical contact according to the turning radius of the rotation unit 20 to generate an ON / OFF signal. This terminal unit 50 includes a movable terminal 51 and a contact terminal 52. [

The movable terminal 51 protrudes from the outer circumferential surface of the rotary support 22 of the rotary unit 20 and is interlocked with the rotation of the rotary unit 20. [ The contact terminal 52 selectively contacts with the rotation of the movable terminal 51 to generate an on / off signal. Here, although the contact terminal 52 is not shown in detail, input and output terminal patterns are printed on the substrate.

Operation of the push switch device 1 according to the present invention having the above-described configuration will be described with reference to Figs. 4 and 5. Fig.

4, when the movable body 11 of the movable unit 10 is pressed in the moving direction P1, the guide (not shown) of the guide unit 30, which is in contact with the lower end of the movable body 11, The member 31 is also moved in the moving direction P1. The guide slope 34 of the interference protrusion 32 is provided on the rotation projection 21 of the rotation unit 20 in cooperation with the movement of the guide member 31 in the movement direction P1 And is moved along the rotation slope 23, thereby rotating the rotation support 22. [

The movable terminal 51 of the terminal unit 50 provided on the rotary support 22 is also rotated by the rotation of the rotary support 22 so that the position of the contact with the contact terminal 52 is varied. At this time, the rotated posture of the rotary support 22 is fixed by engagement between the first fixing screw 41 provided on the rotary support 22 and the second fixing screw 42 provided on the lower housing 62. 4 and 5, when the rotary support 22 is rotated, the first fixing screw 41 rotates in conjunction with the rotary support 22 and moves along the second fixing screw 42 The rotation posture is fixed by the engagement of the first and second fixing screws 41 and 42. In this case,

When the pressing force is released after the rotation unit 20 is rotated by the pressing force of the movable unit P1 in the above-described manner, the movable body 11 moves in the returning direction P1 by the elastic force of the elastic body 12 And an ON signal is generated by the terminal unit 50. [ When the movable unit 10 is again moved in the moving direction P1 to rotate in the returning direction P2 after rotating the rotating unit 20, an off signal is generated by the terminal unit 50 .

Although the present invention has been described with reference to the preferred embodiments thereof, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the following claims. It can be understood that

1: push switch device 10: movable unit
11: movable body 12: elastic body
20: rotation unit 21: rotation projection
22: rotating support body 23:
30: guide unit 31: guide member
32: interference projection 33: guide stopper
40: fixing unit 41: first fixing screw
42: second fixed thread 50: terminal unit
51: Operation terminal 52: Contact terminal
60: housing unit 61: upper housing
62: lower housing P1: movable direction
P2: direction of return

Claims (12)

A movable unit movable in a linear direction;
A rotating unit rotated by a moving force of the movable unit;
A guide unit for transmitting a driving force of the movable unit to the rotating unit;
A fixed unit for fixing the rotated posture of the rotary unit; And
A terminal unit for converting an electrical contact according to a turning radius of the rotating unit to generate an electrical signal;
.
The method according to claim 1,
The movable unit includes:
A movable body capable of bi-directionally linearly moving in a moving direction and a returning direction; And
An elastic body for returning the movable body to an initial position;
.
The method according to claim 1,
The guide unit includes:
A guide member supporting the movable unit and interlocking with movement of the movable unit; And
An interference protrusion protruding from the outer surface of the guide member to interfere with the rotation unit;
.
The method of claim 3,
The rotation unit includes:
A rotation protrusion having a slanting inclined surface contacting with the interference protrusion moving in the moving direction in conjunction with movement of the movable unit in a pressing direction; And
A rotary support supporting the rotary protrusion and rotated by contact between the interference protrusion and the rotary protrusion;
.
5. The method of claim 4,
Four interference protrusions are provided on the outer circumferential surface of the guide member so as to be equally spaced from each other in the direction of 90 degrees,
Wherein the rotation protrusions are equally spaced apart from each other in the direction of 45 degrees to the outer circumferential surface of the rotary support body.
5. The method of claim 4,
A housing unit including upper and lower housings which are coupled to each other to support the assembly of the movable unit, the movable unit, the rotation unit, the guide unit, and the terminal unit so as to prevent disengagement;
/ RTI >
The fixed unit includes:
A first stationary thread provided on the rotating support; And
A second securing thread provided in the lower housing to face the first securing thread and engaging the first securing thread;
.
7. The method according to any one of claims 1 to 6,
The terminal unit includes:
A movable terminal provided in the rotating unit and interlocked with rotation of the rotating unit; And
A contact terminal selectively contacted with the rotation of the movable terminal to generate an on / off signal;
.
A movable unit movable in both directions in a linear direction;
A rotating unit rotated by a moving force of the movable unit;
A guide unit which is moved in the linear direction by the movable unit to generate a rotational force of the rotary unit; And
A terminal unit for converting an electrical contact according to a rotation radius of the rotation unit to generate an ON / OFF signal;
.
9. The method of claim 8,
The guide unit includes:
A guide member supporting the movable unit and interlocking with movement of the movable unit; And
An interference protrusion protruding from the outer surface of the guide member to interfere with the rotation unit;
/ RTI >
The rotation unit includes:
A rotation protrusion having an inclined rotationally sloping surface in contact with the interference protrusion; And
A rotary support supporting the rotary protrusion and rotated by contact between the interference protrusion and the rotary protrusion;
.
10. The method of claim 9,
Four interference protrusions are provided on the outer circumferential surface of the guide member so as to be equally spaced from each other in the direction of 90 degrees,
Wherein the rotation protrusions are equally spaced apart from each other in the direction of 45 degrees to the outer circumferential surface of the rotary support body.
9. The method of claim 8,
A housing unit including upper and lower housings which are coupled to each other to support the assembly of the movable unit, the movable unit, the rotation unit, the guide unit, and the terminal unit so as to prevent disengagement; And
A fixing unit for fixing the rotated posture of the rotary unit to the housing unit;
.
12. The method of claim 11,
The fixed unit includes:
A first stationary thread provided on the rotating support; And
A second fixed thread provided on the lower housing to face the first fixed thread;
.

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