KR20090004417U - Switch for hoist - Google Patents

Abstract

The present invention relates to a hoist contact block switch that prevents a safety accident due to a malfunction by restricting the operation of another switch that is used in combination when one switch is operated in a hoist switch in which a contact block switch is used in combination. The contact block switch includes a coupling groove 20 formed to penetrate through one side of the main body 16; A supporter 30 having both ends coupled to the coupling groove 20 on a corresponding surface of at least one contact block switch 10 providing the coupling groove 20; The support 30 and the movable table 42 corresponding to the upper side are disposed in the main body 16 to have a restoring force by the main spring 12 disposed at the center thereof, and correspond to the fixed terminal sphere 14. And it comprises a contact terminal portion 40 having a restoring force by the auxiliary spring (44). As a result, it is possible to prevent a malfunction by preventing a malfunction, and by the operator knowing the operation sense to achieve a multi-stage operation has the effect of enabling a convenient and stable switch operation.

Hoist, Contact Block Switch, Presser, Main Spring, Control Function

Description

Contact block switch for hoist {switch for hoist}

The present invention improves the structure of the contact switch, and more specifically, in the hoist switch used in which the contact block switch is used in combination, the operation of one switch is restricted by limiting the operation of the other switch that is used in combination. The present invention relates to a contact block switch for a hoist, which prevents and enables an operator to feel the operation state in a sense when operating a switch, thereby achieving convenient and practical use while promoting operation safety.

In general, the hoist switch is used to move an object to a certain position, and is provided with one or more contact switches in combination to provide an electric signal for moving the hoist up and down, left and right, up and down, left and right.

Such a hoist switch fixes a plurality of wires for supply of control power and main power by using bolts at one end of a fixed terminal sphere made of metal that is fixed to the contact block switch body. The contact terminal sphere is separated from the fixed terminal sphere by using the elastic force of the spring in the center thereof to maintain a blocking state, and is contacted from the fixed terminal sphere by an external physical force to supply control power and main power.

Conventional contact block switches enable the necessary hoist operation by operating a single switch, but in the configuration of a plurality of contact block switches connected to each other, the safety of controlling a function or physical force that interferes with the operation of another switch when the contact block switch is operated Since the device is not provided, it is possible to operate another contact block switch during one contact block switch operation, thereby causing a safety accident due to malfunction or immature operation.

In addition, since the fixed terminal of the contact block switch is configured to make contact by pressing once, there is a problem that the multi-stage contact by multiple rows cannot use the contact of the fixed terminal sphere in various ways.

In order to solve such a conventional problem, the present invention uses a plurality of contact block switches in combination to control the operation force of another contact block switch during the operation of one contact block switch so that only one contact block switch operates safely. It prevents safety accidents due to malfunctions, and allows one switch to make contact with a plurality of rows of fixed terminal spheres stepped by multiple stepping operations to achieve desired operation conveniently and easily. It is to provide a contact block switch for a hoist that can achieve a practical use by accurate operation.

In the present invention for achieving the above object, in the contact block switch which is provided in the hoist and moved to the pressing operation and returned to its original state by the restoring force on the main spring, and a plurality of fixed terminal spheres are arranged in a plurality at regular intervals on the upper surface of the main body, A coupling groove formed to penetrate through one side of the main body, a support tool having both ends coupled to the coupling groove at a corresponding surface of at least one contact block switch providing the coupling groove, and the support and the upper one side of the coupling groove There is provided a contact block switch for a hoist, which is disposed in the main body so as to have a restoring force by the main spring disposed at the center thereof, and which comprises a contact terminal part corresponding to the fixed terminal sphere and having restoring force by an auxiliary spring.

According to the present invention, a plurality of contact block switch is inserted into the engaging groove so as to control the mutual return force on the corresponding interface to control the operation of the other switch during one switch operation to prevent malfunction Safety accidents can be prevented in advance, and the operator can realize convenient and stable switch operation by making the operator perform the multi-stage operation while knowing the sense of operation when operating the switch in contact with the multi-stage. Is provided.

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

1 is a longitudinal cross-sectional view of a composite contact block switch combined according to the present invention, Figure 2 is a bottom perspective photo showing a composite contact block switch combined by the present invention, Figure 3 is a plan view of Figure 1, Figure 4 1 is a bottom photo of FIG. 1, FIG. 5 is a front photo of FIG. 1, FIG. 6 is a bottom photo of the cover according to the present invention, FIG. 7 is a perspective view of the main portion of the contact block switch according to the present invention, and FIG. Isometric and bottom view of the support according to the present invention, Figure 9 is a side view showing the coupling state of the push button and the fixed terminal sphere and the contact terminal according to the present invention, Figures 10 and 11 are push button and fixed terminal sphere and The engagement state of the contact terminal is shown by the front view and the top view.

As shown in Figs. 1 to 8, the hoist contact block switch of the present invention is provided in a conventional hoist for remote control, and moves to the pressing operation of the button 18 and returns to the main spring 12 by restoring force. A plurality of fixed terminal spheres 14 are arranged on the upper surface of the main body 16 at regular intervals to form the contact block switch 10.

One side surface of the main body 16 has a coupling groove 20 and a partition wall therethrough, and the support 30 is provided at a boundary portion corresponding to at least one contact block switch 10 provided with the coupling groove 20. Both ends of are coupled to the coupling groove (20).

Here, the support 30 is formed in the H shape and the protrusion 32 having an elastic force for the return to the original surface is formed protruding.

      Both ends of the support 30 are inserted into the coupling groove 20 and correspond to the upper side of the upper portion of the movable table 42 which is freely installed in the main body 16.

       The movable table 42 is disposed to correspond to the fixed terminal sphere 14 in the main body 16 so that the main spring 12 is disposed at the center thereof and has a restoring force by the main spring 12. The contact terminal parts 40 and 40a which have restoring force are arrange | positioned at the upper part.

Here, the movable table 42 has trapezoidal inclined grooves 46 having different heights and is arranged on both sides with a step, and contact terminals 40 and 40a made of a trapezoidal inclined portion corresponding thereto are moved in and out of the inclined groove 46. It is free.

Meanwhile, the shaft bar 50 is inserted into and installed in the main spring 12 provided in the center of the movable table 42.

Here, the shaft bar 50 is provided with a mountain and a valley in the form of at least one sawtooth at the top to enable the lifting operation. The shaft bar 50 is disposed above the main body 16 and corresponds to the ball 54 coupled to the tip of the spring 52 which is compressed in the horizontal direction therein, and thus the contact terminals 40 and 40a are capable of multi-stage operation. Multi-stage contact is possible with the fixed terminal sphere 14.

As described above, the present invention enables the hoist operation by allowing the mobile terminal 42 to be moved up and down by pressing the button 18, thereby making the contact terminals 40 and 40a contact the fixed terminal sphere 14 in multiple stages.

As shown in FIGS. 1 to 5 and 8, when the button 18 is pressed, the button 18 is integrated with the button 18, and the movable terminal 42 embedded in the main body 16 is moved, and at the same time, the connection terminal portions 40 at both ends thereof. As the ascends together, the high contact terminal portion 40 rises while being primarily in contact with and supported by the fixed terminal sphere 14 to form a state separated from the movable table 42.

Subsequently, as the movable stage 42 rises, only the contact terminal portion 40a having the lower stage moves upward, thereby making contact with the fixed terminal sphere 14 to make a multi-stage contact and being separated from the movable stage 42. That is, each contact terminal 40, 40a in the inclined groove 46 of the movable table 42 has a state that is sequentially separated.

Here, when the movable table 42 is moved, the main spring 12 is compressed, and the contact terminal unit 40 is supported by the fixed terminal sphere 14 and at the same time, the contact terminal unit 40 (40a) and the movable table 42. The auxiliary springs 44 disposed in the liver also sequentially have a compressed state.

Therefore, when the physical force is removed from the physically pressed button 18, the operation is restored to the original state by the restoring force of the auxiliary spring 44 and the main spring 12, so that the hoist operation and the stop state can be adjusted.

On the other hand, when one contact block switch 10 is operated in the plurality of contact block switch is coupled to the support groove 30 is inserted into the coupling groove 20, the other one is controlled operation.

This is because the movable table 42 is raised and in contact with one side of the support 30, the support 30 is moved in parallel in the other direction and at the same time disposed above the movable table 42 of the other contact block switch 10 Therefore, even if the button 18 of the other contact block switch 10 is pressed, it is suppressed on the side of the moved support 30 and the lifting movement is controlled and cannot operate.

Therefore, when the operation of the one contact block switch 10 in operation is completed, the support 30, which is moved in parallel, is returned to its original state by the elastic action of the central protrusion 32, so that the contact block switch 10 of the other contact block switch 10 Since the two can not be operated at the same time because it can induce operation, safety accidents caused by malfunctions are prevented.

Meanwhile, as shown in FIGS. 6 to 9, when the cover 22, which is formed by coupling the ball 54 to the spring 52, is coupled to the main body 16, the shaft rod 50 is installed in the center of the movable table 42. While the lifting operation is in contact with the ball 54, the multi-stage tooth portion made of the hill and the valley contact, so that the contact terminal portion 40, 40a can feel the multi-stage contact with the fixed terminal sphere 14, the operator obtains a sense of operation Ensure safe and convenient operation.

Here, when the shaft bar 50 is lowered, the spring 52 coupled to the ball 54 is returned to its original state by the return force in the compressed state.

1 is a longitudinal sectional view of a contact block switch combined by the present invention,

Figure 2 is a bottom perspective photograph of a contact block switch combined by the present invention,

3 is a plan view of Figure 1,

4 is a bottom photograph of FIG. 1;

5 is a front photograph of FIG.

Figure 6 is a bottom photo of the cover according to the present invention,

7 is a perspective view photograph of the main part of the contact block switch according to the present invention,

8 is a perspective photo and a bottom photo of the support according to the present invention.

9 is a side view of the push button and the fixed terminal sphere and the contact state of the present invention,

10 is a front view of the same,

11 is a plan view of the same.

Claims (4)

The contact block switch 10 is provided in the hoist and moved to the pressing operation and returned to the main spring 12 by restoring force, and a plurality of fixed terminal spheres 14 are arranged on the upper surface of the main body 16 at regular intervals. In A coupling groove 20 formed through one side of the main body 16;       A supporter 30 having both ends coupled to the coupling groove 20 on a corresponding surface of at least one contact block switch 10 providing the coupling groove 20;        The support 30 and the movable table 42 corresponding to the upper side are disposed in the main body 16 to have a restoring force by the main spring 12 disposed at the center thereof, and correspond to the fixed terminal sphere 14. And a contact block switch for a hoist, characterized in that it comprises a contact terminal portion 40 having a restoring force by the auxiliary spring 44. The method of claim 1, The support 30 is formed in the H-shaped contact block switch for a hoist, characterized in that the projection is formed on the upper surface (32). The method of claim 1, The movable table 42 is a shaft that is arranged in the stepped trapezoidal inclined groove 46 on the side and the contact terminal 40, 40a made of a trapezoidal inclined portion corresponding to the free entry and insertion into the central main spring 12 Contact block switch for a hoist, characterized in that 50 is installed. The method of claim 3, wherein The shaft bar 50 is formed in at least one tooth shape at the top and is disposed on the upper body 16, the multi-step operation is possible in response to the ball 54 coupled to the front end of the spring 52 is compressed in the horizontal direction therein. Contact block switch for a hoist, characterized in that configured to.

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