KR960005879Y1 - Emergency push button switch - Google Patents

Abstract

No content

Description

Emergency Pushbutton Switch

1 is an exploded perspective view of a pushbutton switch according to the present invention.

2 is a view along the line I-I of FIG. 1, in which a pushbutton switch is coupled;

3 is a cross-sectional view taken along the line II-II of FIG.

(a), (b) shows the operating state of the pushbutton switch.

* Explanation of symbols for main parts of the drawings

1: pushbutton switch 10: external socket

12: inclined circumferential surface 14: annular end

16,26: spring fixing seat 20: internal socket

22,22 ': Hanging protrusion 24,24': Elastic piece

28: spring 30: control panel

The present invention relates to an emergency pushbutton switch of a push off type, and more particularly an emergency pushbutton switch having an improved on / off operation structure in the switch body.

In general, various types of push-on or off-type button switches have appeared, but the internal structure is not so simple that the accuracy of the on / off operation, as well as the speed and convenience of operation.

In addition, the on / off operation structure is complicated to give a great inconvenience when disassembling and assembling, which is a rising factor of manufacturing cost. In addition, the wear rate between many components is high, which is a factor of shortening the life.

The present invention has been made to solve the above drawbacks, and provides the advantage that the on / off operation of the switch can be achieved quickly and accurately.

In addition, the on / off operating structure can be simplified to provide the advantages of easy disassembly and assembly, as well as a reduction in manufacturing cost and no trouble.

That is, the present invention is a means for achieving the above object, in the push button switch of a known structure, a cylindrical outer socket provided with an annular end and a spring fixing seat having an inclined main surface on the inner circumferential surface, and an elastic having a locking projection on the main wall One side and spring fixing seat are installed. It is an emergency pushbutton switch composed of a cylindrical inner socket which is elastically coupled to move forward and backward through a spring in the outer socket, and is detachably coupled to the front side of the inner socket and has an operation indicator of a transparent body on the front thereof.

In addition, it is proposed that the annular end is provided with two guide grooves corresponding to the engaging projection.

These and other advantages and features will become more apparent on the basis of the embodiments according to the accompanying drawings. The present invention is by no means limited to the following examples.

FIG. 1 shows the external structure of the pushbutton switch 1 according to the present invention, and FIG. 2 shows the internal structure thereof. When the structure of the pushbutton switch 1 of the present invention is roughly divided, A cylindrical outer socket 10 detachably coupled to the switch contact socket portion 40 as shown in FIG. 2, a cylindrical inner socket 20 coupled to the front socket and reversible within the outer socket 10, and an inner socket. It consists of an operation unit 30 detachably screwed to the (20).

The following describes each component in detail.

As shown in FIG. 1 and FIG. 2, the outer socket 10 has an annular end portion 14 having an inclined circumferential surface 12 which is inclined toward the front side at the middle portion of the inner circumferential surface thereof, and at the inside of the front side of which the inner diameter is widened. A spring fixing seat 16 having a spring fixing hole 15 is installed.

The inner socket 20 forms an outer diameter smaller than the inner diameter of the outer socket 10, and forms a resilient elastic piece 24 (24 ') on the rear part of the main wall by cutting off a portion of the wall. The elastic pieces 24 and 24 'are provided with locking projections 22 and 22' having inclined surfaces 32 and 32 'to be inclined to the inclined peripheral surface 12 of the annular end portion 14. .

In addition, a spring fixing seat 26 having a spring fixing hole 25 is installed at the front side of the inner socket 20. The spring 28 is seated on the spring fixing seats 16 and 26 formed in the inner and outer sockets 10 and 20 by being inserted and positioned outside the body of the inner socket 20 and the spring 28. Both ends 28a and 28b are inserted into the spring fixing holes 15 and 25 installed in the fixed seats 16 and 26 and are firmly positioned.

On the front side of the inner socket 20, the annular operation portion 30 of the transparent body is detachably screwed, and a display portion (not shown) is formed on the front surface of the operation portion 30.

In addition, the annular end 14 is provided with guide grooves 18, 18 'through which the engaging protrusions 22, 22' can pass, as shown in FIG. In (10), forward and backward were made possible.

In the figure, reference numeral L denotes a power display lamp, and 42 and 42 'respectively show contact terminals.

In the above embodiment, the general contact structure of the switch is omitted, and only the internal structure of the on / off operation part is displayed. In fact, as shown in FIG. 2, the switch is connected to the switch contact socket 40 to serve as an emergency switch for various industrial machines. Used.

It is usually in the on position and push-off structure that the contact is turned off when pressing the emergency operation unit 30. As shown in the drawing, the inner socket 20 to which the outer socket 10 and the operation unit 30 are coupled is coupled to each other elastically by interposing the spring 28. Normally, the internal socket 20 acting to turn off the power by pressing the contact terminals 42 and 42 'in an emergency is the locking projections 22 and 22' of the elastic pieces 24 and 24 'on the wall thereof. As shown in FIGS. 2 and 3 (a), the inner socket 20 and the contact terminal (1) are caught by the inclined circumferential surface 12 of the annular end portion 14 of the outer socket 10. 42) 42 'are in a state of being separated. Therefore, the power display lamp (L) is in a lit state and the light at this time passes through the operation unit 30 of the transparent body can be seen that the power is supplied from the outside.

In such a state, to detect an abnormality in the machine or system in operation and to stop the power supply quickly, as shown in FIG. 3, when the operation unit 30 is pressed in the direction of the image table using a hand as shown in FIG. It is moved to the rear side while resisting the spring 28, wherein the free elastic pieces 24 and 24 'which are in the state of being hung on the inclined circumferential surface 12 of the annular end portion 14 are pressed by the annular end portion 14. Then, as shown in FIG. 2, the state is immersed in the imaginary line position, and is beyond the annular end portion 14.

In particular, the engaging projections 22, 22 'and the annular end portion 14 are formed with the inclined main surface 12 and the inclined surfaces 32, 32' in opposite directions to each other so that the elastic pieces 24, 24 'are formed. The catching protrusions 22 and 22 'easily slide over the annular end 14 while being in sliding contact.

As soon as the engaging projections 22 and 22 'cross the annular end 14, they are quickly returned to their original state by the self restoring force of the elastic pieces 24 and 24'.

Accordingly, as shown in FIGS. 2 and 3, the locking protrusions 22 and 22 ′ are held at the annular end 14 side to suppress the internal socket 20 moved to the rear side from moving forward. Is given. The moved internal socket 20 presses the adjacent contact terminals 42 and 42 'so that the contact terminals 42 and 42' are in an off state. At this time, the power supply is stopped and all the machines in operation are stopped. You lose.

When the internal socket 20 is rotated in the direction indicated by the arrow indicator (not shown) displayed on the front of the operation unit 30 to achieve the state that has been returned to its original state (in the direction of the arrow in FIG. 2), the operation unit 30 ) And the inner socket 20 coupled integrally also rotates in the same direction, but further rotation of the inner socket 20 is stopped by the installation of a stopper (not shown), and the engaging protrusion 22 on the wall of the inner socket 20 is stopped. 22 'are in a state exactly coinciding with the guide grooves 18 and 18' of the annular end 14 (see FIG. 3b). The coincidence of the guide grooves 18 and 18 'and the engaging projections 22 and 22' is effected by a stopper. However, the stopper may have a structure in which engaging protrusions are installed in the inner and outer sockets 10 and 20, and may be modified by other structures, and thus, specific descriptions of any one of the stoppers are omitted.

When the locking projections 22 and 22 'coincide with the guide grooves 18 and 18', when the hand is released from the operating part 30 which was rotated by hand, it is compressed until then due to the backward operation of the inner socket 20. The locking protrusions 22 and 22 'of the inner socket 20 pass through the guide grooves 18 and 18' by the elastic force of the spring 28, and the locking protrusion 22 of the inner socket 20. (22 ') is returned to its original position as shown in FIG. 23 as it is rotated to its original state as it passes through the guide groove (18) (18'), the engaging projections (22) and (22 ') are annular ends again. The state held by the inclined circumferential surface 12 of 14 is maintained, and thus, the contact terminals 24 and 24 'that have been pressed up to that time are also returned to their original positions to achieve the initial on state.

Although the on / off operation of the switch has been described separately in the above embodiment, the actual on / off operation is executed instantaneously.

As described above, the switch of the present invention has an effect that the on / off operation can be quickly achieved as a simple structure, and in particular, the on / off operation is achieved in a state of being caught at the end of the hook, resulting in negligence of the user. It has the effect of preventing malfunction.

Claims (3)

In the known pushbutton switch, a cylindrical outer socket (10) provided with an annular end portion (14) having an inclined circumferential surface (12) and a spring fixing seat (16) having a spring fixing hole (15), The wall is provided with an elastic piece 24 (24 ') having locking projections (22) and 22' and a spring fixing seat (26) having a spring fixing hole (25) and interposing a spring (28) in an outer socket. Emergency pushbutton switch consisting of a cylindrical inner socket 20 that is elastically coupled to move forward and backward, and a detachable screw coupled to the inner socket, the front of the operation portion of the transparent body with an operation indicator. The pushbutton switch according to claim 1, wherein the annular end is provided with a guide groove (18) (18 ') through which a locking projection can pass. The pushbutton switch according to claim 1 or 2, wherein the locking projection is provided with an inclined surface (32) (32 ') opposite to the inclined main surface.