WO2019177259A1

WO2019177259A1 - Multi-limit switch device for stage machinery

Info

Publication number: WO2019177259A1
Application number: PCT/KR2019/000879
Authority: WO
Inventors: 김종열
Original assignee: 김종열
Priority date: 2018-03-13
Filing date: 2019-01-22
Publication date: 2019-09-19
Also published as: KR101892417B1

Abstract

The present invention relates to a multi-limit switch device for stage machinery, and to a multi-limit switch device for controlling the lifting and lowering of stage machinery provided on a stage, such as banner hangers and lighting devices. To this end, provided is the multi-limit switch device for stage machinery, the device comprising: a box-shaped main body part (10); a limit switch unit (20) inserted into the main body part (10), and controlling the lifting and lowering height of the stage machinery; and a variable limit switch unit (30) capable of varying the interference position of a limit switch for controlling the set height of the stage machinery.

Description

Multi limit switch device for stage machine

The present invention relates to a multi-limit switch device for a stage machine, and is a multi-limit switch device for controlling the lifting and lowering of the stage machine such as a banner hanger, a lighting fixture installed on the stage.

In general, various machines are applied to stages in which lectures, plays, and performances are performed.

There are various kinds of equipment such as lighting, sound, beam project, and banners, and the technology for controlling the height of each installation is applied.

Representative techniques of such a method of controlling the installation height is to control the height by adjusting the amount of winding of the cable using a drive device such as a motor, or to control the height by using a gear or the like.

Accordingly, the height of the stage apparatus is controlled through the operation control of the driving apparatus, and the technique used here is to apply a limit switch, Korean Patent No. 10-0818615 (limit switch device, hereinafter 'prior art 1 Registered on March 26, 2008). The helical rotary shaft 24 is installed in the housing 20 and is adjacent to both side walls 22 and 22 'of the housing 20 on one side of the helical rotary shaft 24. Limit switches 30 and 30 'are disposed, respectively, and a ring nut-shaped operating member having a plurality of tooth grooves 34 on its main surface for operating the limit switches 30 and 30' on the helical rotation shaft 24. (32) and 32 'are helically coupled. According to the present invention, in the housing 20 in which the limit switches 30 and 30 'are disposed, the other side of the spiral rotating shaft 24 has a function to fix or adjust the position of the operation members 32 and 32'. The adjustment member 36 having the arrangement is disposed, the spiral hole 38 is formed at the center of the bottom surface of the housing 20 and the spring 40 is partially inserted in the direction of the spiral rotating shaft 24 on both sides Spring holders 44 and 44 'having insertion holes 42 are arranged, and the adjusting member 36 is a flat plate portion 46 having a control plate 52, 52' mounted on the rear side thereof, and the flat plate portion 46 A vertical portion 48 vertically extending from the front side of the front side, and a horizontal end extending from the vertical portion 48 so that the tip portion can be coupled to the tooth groove 34 of the operation members 32 and 32 '. It consists of a 50, the plate portion 46 of the adjustment member 36 is formed with a rectangular through hole 54 in the center and the spring holder 44, 44 'is inserted in both sides Rectangular guide through holes 56 and 56 'are formed, the springs 40 of the spring holders 44 and 44' are in close contact with the vertical portion 48 of the adjusting member 36 and the adjusting spring 58 Disclosed is a technique in which the combined adjusting screw 60 is coupled to the spiral hole 38 of the housing 20 through the through hole 54 of the flat plate portion 46.

In addition, the Republic of Korea Patent Publication No. 10-2016-0053092 (variable limit switch, hereinafter referred to as 'prior art 2'. May 13, 2016) is the operating range of the control target, or the operating range of the control, the switching time of the operation There is provided a variable limit switch which can be changed and set. Variable limit switch is a body, a drive shaft rotatably coupled to the body, the first shaft is formed on the outer circumferential surface, the first gear is formed on the outer circumferential surface and the thread is formed on the inner circumferential surface, the first limit gear of the hollow type screwed to the outer circumferential surface of the drive shaft, A first adjustment bar parallel to the drive shaft and rotatably coupled to the body, and having a first rotation control protrusion formed on the outer circumference thereof to engage the first gear to limit rotation of the first limit gear, on the movement path of the first limit gear. And at least one first switch module positioned to operate according to whether the first limit gear is in contact with the first limit gear, and when the driving shaft rotates, the first limit gear moves along the driving shaft to operate the first switch module. .

However, the prior arts 1 and 2 are complicated in structure because a large number of limit switches must be applied to control the installation position and the use position of the stage machine, and the size of the installation site when the installation position and the use position of the stage machine is controlled. Depending on the fine control and installation was a difficult problem.

The present invention, in order to overcome the above problems, in providing a multi-limit switch device for a stage machine, to enable multiple control, its structure is simple, easy to manufacture and maintain, precise location according to the installation site An object of the present invention is to provide a multi-limit switch device for a stage machine that can be controlled.

In the multi-limit switch device for a stage machine for achieving the object of the present invention, the limit switch unit interpolated to the main body portion 10 and the main body portion 10 of the enclosure shape, and controls the rising and lowering height of the stage machine (20) and the variable limit switch unit 30 that can vary the interference position of the limit switch for controlling the set height of the stage machine to provide a multi-limit switch device for the stage machine.

In addition, the main body 10 is composed of a case 11 formed in a housing structure, a rotating shaft 12 provided inside the case and a moving member 13 moved on the rotating shaft 12, The limit switch unit 20 positioned adjacent to the rotation shaft 12 on the inner upper side of the main body 10 is coupled to the guide bar 21 and the guide bar 21 coupled to the case 11 and is staged. It consists of an upper limit switch 22 for controlling the rising position of the device and a lower limit switch 23 for controlling the falling position of the stage device.

In addition, the variable limit number position unit 30 is composed of a guide bar 21 coupled to the case 11 and a variable limit switch 32 for lowering the stage apparatus up to a height set by the user, and variable limit switch 32 is a body frame 32a coupled to the guide bar 31 and a driving member 32b coupled to the upper side of the body frame 32a in an oblique direction and coupled to the drive member 32b. It consists of a switch 32c, the limit switch 32c is inserted into the fixed frame 32d and the fixed frame 32d for coupling the drive member 32b to the body frame 32a, and the drive member 32b. It is composed of a switch coupling frame (32e) for coupling with the outside, by operating the drive member (32b) to move the position of the limit switch, the drive member (32b) is characterized in that the magnetic switch is applied Multi-limit switch for stage machinery By providing a device which can be well achieved than the object of the present invention.

By providing a multi-limit switch device for a stage machine of the present invention, it is possible to enable multiple control, its structure is simple, easy to manufacture and maintain, and to enable precise control according to the installation site.

1 is a perspective view of the present invention.

2 is an exploded perspective view of the present invention.

3 is a perspective view showing the installation of the limit switch unit 20 according to the present invention.

4 is an exploded perspective view of the variable limit switch unit 30 according to the present invention.

5 is an exemplary view showing the operation of the variable limit switch unit 30 according to the present invention.

Figure 6 is an exemplary view showing an embodiment according to the lowering operation of the stage device.

7 is an exemplary view of the rising and lowering position of the stage device.

Hereinafter, a multi-limit switch device for a stage machine of the present invention will be described in detail with reference to the accompanying drawings so that a person skilled in the art can easily perform the same.

1 is a perspective view of the present invention, Figure 2 is an exploded perspective view of the present invention, Figure 3 is a perspective view of a limit switch unit 20 according to the present invention, Figure 4 is a variable limit switch unit 30 according to the present invention 5 is an exploded perspective view of FIG. 5 is an exemplary view showing the operation of the variable limit switch unit 30 according to the present invention, FIG. 6 is an exemplary view showing an embodiment according to the lowering operation of the stage machine, and FIG. Illustrative diagrams for the rising and falling positions of the machine.

1 to 7, the multi-limit switch device for a stage machine according to the present invention is interpolated into the main body 10 and the main body 10, and controls the rising and falling height of the stage machine. It consists of a limit switch unit 20 and a variable limit switch unit 30 capable of varying the interference position of the limit switch for controlling the set height of the stage machine.

The main body portion 10 is composed of a case 11 formed in an enclosure structure, a rotating shaft 12 provided inside the case and a moving member 13 moved on the rotating shaft 12.

The rotating shaft 12 is a screw is formed on the outer peripheral surface, the moving member 13 disposed on the screw is to move forward or backward along the screw.

In this case, the rotation shaft 12 is coupled to penetrate through one side surface of the case 11 and the other side surface corresponding to the one side surface, and is formed to facilitate rotation through a bearing positioned at the coupling portion.

Here, a member such as a gear or pulley is coupled to the end of the rotation shaft 12, by using this, it is possible to raise or lower the stage device such as lighting or banners.

The upper limit surface of the main body unit 10 as described above is provided with a limit switch unit 20 adjacent to the rotation shaft 12.

The limit switch unit 20 is a guide bar 21 coupled to the case 11 and the upper limit switch 22 and the stage device coupled to the guide bar 21 and controlling the rising position (A) of the stage device. It consists of a lower limit switch 23 for controlling the falling position (C) of the.

At this time, the upper limit switch 22 and the lower limit switch 23 is operated through a mechanical contact can be applied a conventional micro switch.

More specifically, it refers to a form in which a lever provided with a lever or a roller is attached to one side of the switch, and the lever is pressed and contacted by mechanical contact.

Here, the upper limit switch 22 is to control the maximum height when lifting the stage device, the lower limit switch 23 to control the lowest height when the user descends close to the ground for repair or inspection It can be.

The upper limit switch 22 and the lower limit switch 23 may be coupled to the guide bar 21 by using fastening members such as bolts, and thus may be fastened by varying the position according to the site situation.

In more detail, by adjusting the position of the upper limit switch 22 and the lower limit switch 23 according to the size of the site to be installed, it is possible to control the rising and lowering position of the stage device.

In this case, the limit switch unit 20 is spaced apart from the rotary shaft 12 so that the upper limit switch 22 and the lower limit switch 23 can be mechanically contacted by the moving member 13 of the main body 10. Keep your distance.

In addition, a variable limit switch unit 30 is provided at an inner lower end of the main body 10 adjacent to the rotary shaft 12.

The variable limit switch unit 30 as described above is composed of a guide bar 31 coupled to the case 11 and a variable limit switch 32 for lowering the stage apparatus up to the height (B) set by the user.

At this time, the variable limit switch 32 is disposed between the upper limit switch 22 and the lower limit switch 23 to control the movement to the user setting position, which is the use position of the stage device.

Here, the variable limit switch 32 may also have a lever having a lever or a roller provided at one side thereof, and a micro switch having a form in which the lever is pressed and contacted by a mechanical contact may be applied.

The variable limit switch 32 is configured to move the position of the limit switch from the outside, for this purpose, the body frame (32a) coupled to the guide bar 31 and the diagonal direction on the upper side of the body frame (32a) It consists of a drive member 32b is disposed and coupled to the limit switch 32c interlocked with the drive member 32b, the fixed frame 32d for coupling the drive member 32b to the body frame 32a And a switch engagement frame 32e for fitting the limit switch 32c into the fixed frame 32d and engaging the drive member 32b.

The drive member 32b can be anything as long as it can move the limit switch 32c, but a magnetic switch that generates magnetism is preferably applied.

As described above, when the driving member 32b and the limit switch 32c are disposed to be diagonally coupled to the body frame 32a, the position of the limit switch 32c disposed to be rotatable on one side of the body frame 32a is changed. It is to let.

In more detail, when the driving member 32b is driven, the limit switch 32c connected to and interlocked with the driving member 32b is moved to control the position of the limit switch 32c.

Here, when the drive member 32b operates, the limit switch 32c is moved by the attraction force, and the limit switch 32c moves downward, and when the operation of the drive member 32b is stopped, the drive member 32b stops. The limit switch 32c is moved upward by restoring to an original state by an elastic member or the like provided.

When the position of the limit switch 32c is changed by the raising or lowering operation in this way, the moving member 13 positioned on the pivot shaft 12 of the main body 10 interferes with the limit switch 32c. The lower limit switch controls the falling height for repair or inspection through the variable limit switch unit 30 when the stage device is positioned at the use height, which is set by the user, or the interference is not made by mechanical contact. You can move up to 23.

10: body portion 11: case

12: rotating shaft 13: moving member

20: limit switch unit 21: guide bar

22: upper limit switch 23: lower limit switch

30: variable limit switch unit 31: guide bar

32: variable limit switch

Claims

In the multi-limit switch device for a stage machine,

Main body portion 10 of the enclosure shape; and

A limit switch unit 20 interpolated in the main body 10 to control a rising and falling height of the stage machine; and

It is composed of a variable limit switch unit 30 that can vary the interference position of the limit switch for controlling the setting height of the stage machine,

The variable limit switch unit 30 is coupled to the guide bar 31 coupled to the case 11 in an oblique direction, and includes a variable limit switch 32 to be moved on the guide bar 31. Multi-limit switch device for stage machine.
The method of claim 1,

The variable limit switch 32 includes a body frame 32a coupled to the guide bar 31, a drive member 32b coupled to the upper side of the body frame 32a in an oblique direction, and the drive member 32b. It consists of a limit switch 32c interlocked, the limit switch 32c is inserted into the fixed frame 32d and the fixed frame 32d for coupling the drive member 32b to the body frame 32a, and the drive member. And a switch coupling frame (32e) for engaging with the (32b), it is possible to move the position of the limit switch by operating the drive member (32b) from the outside.
The method of claim 2,

The drive member (32b) is a multi-stage switch device for a stage machine, characterized in that the magnetic switch is applied.