KR101745514B1 - Wire winch for stage facility - Google Patents

Abstract

According to the present invention, A rotary drum provided on the upper portion of the base and wound with a wire; A driving motor for providing rotational force to the rotary drum; A guide wheel for guiding the wire wound around the rotary drum; And a transfer unit for linearly reciprocating the rotary drum along a longitudinal direction of the base unit by a rotational force of the rotary drum.

Description

{WIRE WINCH FOR STAGE FACILITY}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire winch for a stage facility, and more particularly, to a wire winch for a stage facility that can be lifted or lowered by using a wire wound around a drum for various stage facilities such as a stage lighting or a stage background.

Generally, a winch using wire is used to raise and lower the stage facilities required for the performance and performance such as the stage background, lighting fixture, stage film, flag, plan card, which are the main elements of various stage performances such as drama, dance and opera.

The wire winch for a stage facility includes a wire connected to a stage facility, a rotary drum around which the wire is wound, a driving motor for providing a rotational force for winding or unwinding the wire to the rotary drum, And a guide wheel for guiding the wire.

However, in the conventional wire winch, when the wire is wound on the rotary drum, the wire is not properly seated in the spiral wire groove formed on the surface of the rotary drum, and the wire wound is twisted or seriously detached from the guide wheel, . ≪ / RTI > This is because the guide wheel and the rotary drum only rotate at the same position, but the wire wound around the rotary drum is deflected in a diagonal direction along the spiral groove formed in the rotary drum.

In order to solve the above problems, a conventional wire winch is equipped with a guide means for drawing out the wire in a linear direction. In Korean Patent No. 10-1451751 and 10-1611238, And guide means and operating means for causing the wheel to slide.

The guide means or operating means is configured to linearly reciprocate the guide wheel along the longitudinal direction of the rotary drum by rotating the rotary drum. That is, the guide means or the operation means has a structure for guiding the guide wheel for guiding the wire to be interlocked with the rotational motion of the rotary drum so that the wire is guided in the straight direction when the wire is unwound or wound on the rotary drum.

However, since the conventional wire winch having the above structure has the guide means or the operation means, there is a problem that the overall manufacturing cost and the unit cost of the apparatus are increased.

Further, since the guiding means or the operating means is formed of a complex connection structure with the rotary drum, there is a problem that the maintenance is difficult due to wear or breakage of the apparatus, and the installation volume of the landing gear is limited because of increasing the overall volume and load of the landing gear. In addition, there is a problem that installation convenience is remarkably deteriorated.

Accordingly, the applicant of the present invention has proposed the present invention to solve the above-mentioned problems, and as a prior art document related thereto, Korean Patent No. 10-1451751 discloses a wire drive apparatus for a stage facility.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a wire for a stage facility which is configured to lift and lower the stage facility safely without twisting or detaching the wire, The purpose is to provide a winch.

According to the present invention, A rotary drum provided on the upper portion of the base and wound with a wire; A driving motor for providing rotational force to the rotary drum; A guide wheel for guiding the wire wound around the rotary drum; And a transfer unit for linearly reciprocating the rotary drum along a longitudinal direction of the base unit by a rotational force of the rotary drum.

The conveying unit may further comprise: A transfer frame provided on the base and supporting the driving motor and the rotary drum; And a fixed unit fixedly provided on one side of the base in the longitudinal direction and rotatably coupled with one longitudinal end of the rotary drum, wherein the conveyance frame is rotatably supported by the rotary drum and the fixed unit, And can be linearly reciprocated along the longitudinal direction of the base portion.

The fixing unit may further include: a main body fixedly coupled to one side of the base in the longitudinal direction; A rotary coupling hole provided in the main body and into which one end of the rotary drum is inserted; And a screw groove formed on an inner surface of the main body for partitioning the rotary coupling hole and screwed into the wire groove of the rotary drum.

In addition, the wire may be wound or unwound at other portions except for one longitudinal end portion of the rotary drum.

The apparatus may further include a rail portion provided between the base portion and the transfer frame, wherein the rail portion includes: a guide rail provided on an upper portion of the base portion; And a slide block which is movable along the guide rail and fixedly provided at a lower portion of the transport frame.

The guide wheel may be provided in a number corresponding to a plurality of wire bundles wound on the rotary drum, and may be arranged in a row at a predetermined interval along the longitudinal direction of the base.

The guide wheel may include a first bracket arranged in a line at a predetermined interval along a longitudinal direction of the base unit; A second bracket rotatably mounted on the first bracket; And a pulley rotatably provided on the second bracket and guiding a wire wound around the rotary drum.

The first bracket may include: a first frame fixed to the base; And a second frame protruding upward from both ends in the longitudinal direction of the first frame to press down the lower end of the second bracket, and a fastening hole into which the fastening member is inserted and formed.

The second bracket may include a third frame interposed between the pair of first frames and disposed along the longitudinal direction of the first frame; A fourth frame projecting upwardly from both ends in the longitudinal direction of the third frame and having a fastening hole communicating with the fastening holes formed in the second frame; And a fifth frame protruding upward from both ends in the width direction of the third frame and rotatably supporting the pulleys.

A first sliding surface is formed on the upper surface of the first frame along the entire longitudinal direction of the first frame and a second sliding surface corresponding to the first sliding surface is formed on the bottom surface of the third frame, As shown in FIG.

The wire winch for a stage facility according to an embodiment of the present invention can accurately hold the wire wound on the rotary drum in the wire groove of the rotary drum so that it is prevented from being twisted or detached from the rotary drum in the process of winding the wire on the rotary drum can do.

In addition, the wire winch for a stage facility according to an embodiment of the present invention induces a straight line shape when the wire is unwound or wound on the rotary drum and is not bent in an oblique direction, It is possible to prevent the wire from being broken and to stably raise / lower the stage facility.

In addition, the wire winch for a stage facility according to an embodiment of the present invention guides the wires wound on the rotary drum to be drawn out without interfering with each other even when a plurality of guide wheels are installed in a line on the base, It is possible to reduce the total area of the device by reducing the area of the area, thereby allowing the device to be installed in a narrow space.

1 is a front view of a wire winch for a stage facility according to an embodiment of the present invention;
2 is a top plan view of the wire harness for a stage facility shown in Fig.
Fig. 3 is a side view of the wire harness for a stage facility shown in Fig. 1 viewed from the right side. Fig.
4 is a perspective view of a fixed unit according to an embodiment of the present invention;
5 is an enlarged cross-sectional view of part A of Fig.
FIG. 6 is a front view showing a state in which the guide wheel is mounted on the base according to the embodiment of the present invention; FIG.
FIG. 7 is an exploded perspective view of a guide wheel according to an embodiment of the present invention; FIG.
8 is a side view showing a state in which the second bracket of the guide wheel is turned according to an embodiment of the present invention;
FIG. 9 is an exploded perspective view of a guide wheel according to an embodiment of the present invention in which a sliding surface is formed on an upper surface of a first frame and a lower surface of a third frame. FIG.
10 is a perspective view showing a state in which a release prevention pin is provided in a second bracket according to an embodiment of the present invention;
11 is a side view showing a state in which the second brackets of the guide wheel according to the embodiment of the present invention are provided in the base portion with different angles from each other.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings.

It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

Hereinafter, a wire winch for a stage facility according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 5. FIG. In describing the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as not to obscure the gist of the invention.

FIG. 1 is a front view of a wire winch for a stage facility according to an embodiment of the present invention, FIG. 2 is a top view of the wire winch for a stage facility shown in FIG. 1, FIG. 3 is a top view of the wire winch for a stage facility, FIG. 4 is a perspective view of a fixed unit according to an embodiment of the present invention; FIG. FIG. 5 is an enlarged cross-sectional view of part A of FIG. 1, FIG. 6 is a front view of a guide wheel mounted on a base according to an embodiment of the present invention, and FIG. FIG. 8 is a side view showing a state in which the second bracket of the guide wheel is pivoted according to an embodiment of the present invention, and FIG. 9 is a side view of the guide wheel according to an embodiment of the present invention, FIG. 10 is a perspective view showing a state in which a second bracket according to an embodiment of the present invention is provided with a release prevention pin, and FIG. 11 is a perspective view showing a state in which a sliding surface is formed on the bottom surface of the third frame. FIG. 8 is a side view showing a state in which the second brackets of the guide wheel according to an embodiment of the present invention are provided on the base portion with different angles from each other. FIG.

1 to 5, a wire winch 100 for a stage facility according to an exemplary embodiment of the present invention includes a base 110, A guide wheel 140 for guiding a wire W wound on the rotary drum 120, and a driving motor 130 for driving the rotary drum 120. The rotary drum 120 includes a rotary drum 120, a driving motor 130 for providing a rotating force to the rotary drum 120, And a transfer unit 150 for linearly reciprocating the rotary drum 120 along the longitudinal direction of the base unit 110 by the rotational force of the rotary drum 120.

The base 110 may have a plate shape and may be fixedly installed on a grid constituting a stage ceiling using known fastening means. However, the base 110 may be installed in a state standing on a vertical wall surface It is possible.

The rotary drum 120 is a member for winding and unwinding the wire W by rotation, and may be disposed along the longitudinal direction of the base 110 at an upper portion of the base 110.

Spiral wire grooves (not shown) are formed on the surface of the rotary drum 120. The wire groove serves to wind or unwind the wire W on the rotary drum 120 without being twisted, and may be formed along the entire lengthwise direction of the rotary drum 120.

In addition, since a plurality of wire bundles (a to g) can be used depending on the load or size of the stage facility to be lifted or lowered, a plurality of bundles of wires W are wound on the surface of the rotary drum 120 And one end of the wire W wound on the rotary drum 120 may be fixedly connected to the surface of the rotary drum 120 and the other end may be connected to the stage facility.

The driving motor 130 generates power for winding or unwinding the wire W to the rotary drum 120 and may rotate the rotary drum 120 in one direction or another direction.

For example, when the rotary drum 120 is rotated in one direction by the power transmitted from the driving motor 130, the wire W wound on the rotary drum 120 is unwound on the rotary drum 120, When the rotary drum 120 is rotated in the other direction, the wire W unwound from the rotary drum 120 may be wound on the rotary drum 120 to raise the stage facility .

A driving shaft of the driving motor 130 may be directly connected to the rotating drum 120. The driving shaft 130 may be connected to the driving drum 130 via a driving pulley, And may be connected to the rotary drum 120 using a transmitting member.

1, when the driving motor 130 is disposed at an upper portion of the rotary drum 120, a rotary shaft (not shown) connected to the driving shaft of the driving motor 130 is connected to the rotary drum 120, (Not shown) to connect the driving shaft and the rotating shaft (not shown) to each other via the power transmitting member, so that the power generated by the driving motor 130 can be transmitted to the rotating drum 120 have.

In addition, a known speed reducer may be mounted on the driving motor 130 to reduce the rotational speed of the driving motor 130.

The guide wheel 140 may be in the form of a pulley having a groove for guiding the wire W. The guide wheel 140 may be disposed adjacent to the rotary drum 120 and may be fixed to the base 110 As shown in Fig.

The transfer unit 150 includes a transfer frame 151 provided at an upper portion of the base unit 110 and supporting the driving motor 130 and the rotary drum 120, And a fixing unit 153 fixed to the rotary drum 120 and rotatably coupled with one longitudinal end of the rotary drum 120. [

The transfer unit 150 configured as described above can linearly reciprocate the rotary drum 120 along the longitudinal direction of the base unit 110 using the rotational force generated from the rotary drum 120. That is, as the one end portion in the longitudinal direction of the rotary drum 120 and the fixing unit 153 are screwed together, the transfer frame 151 and the rotary drum 120 are moved along the longitudinal direction of the base 110 It can be reciprocated linearly.

4, the fixing unit 153 includes a main body 153a fixedly coupled to one longitudinal side of the base 110, a main body 153a provided on the rotating drum 120, And a screw groove 153c formed on the inner surface of the main body 153a for partitioning the rotary coupling hole 153b and screwed into the wire groove of the rotary drum 120. [ . ≪ / RTI >

Accordingly, when the rotary drum 120 is rotated in the forward direction or the single direction by the driving motor 130, the wire groove formed at one end of the rotary drum 120 and the rotary groove 153a of the fixing unit 153 The rotary drum 120 is gradually inserted into the rotary engaging hole 153a or gradually released from the rotary engaging hole 153a so that the rotary drum 120 is linearly reciprocated along the longitudinal direction of the base 110, Can be exercised.

1 shows a state in which one end of the rotary drum 120 is fully engaged with the threaded groove 153c and is inserted into the rotary coupling hole 153b.

The transfer frame 151 supporting the rotary drum 120 may also be linearly reciprocated along the longitudinal direction of the base 110. [

Here, the wire is not wound at one longitudinal end portion of the rotary drum 120, which is inserted into the rotary coupling hole 153a of the fixed unit 153. That is, one end portion in the longitudinal direction of the rotary drum 120 is screwed to the screw groove 153c formed in the rotary coupling hole 153a, so that the wire W is not wound but a plurality of wires W) bundle can be wound.

Meanwhile, the main body 153a may be provided with a guide hole 153d through which one longitudinal end of the transfer frame 151 can pass. The guide hole 153d is formed in a size and shape such that one end of the transfer frame 151 can be passed through when the one end of the rotary drum 120 and the rotary coupling hole 153a are screwed together. The transfer frame 151 can be linearly reciprocated along the longitudinal direction of the base 110 through the guide hole 153d.

The base unit 110 may be provided with a sensor unit 160 for sensing a transport position of the transport frame 151.

The sensor unit 160 can detect the position of one end or the other end of the transfer frame 151 which is linearly reciprocated along the longitudinal direction of the base unit 110 by the rotation of the rotary drum 120 And are provided on both sides in the longitudinal direction of the base unit 110 according to an embodiment of the present invention.

The sensor unit 160 senses one end or the other end position in the longitudinal direction of the transfer frame 151 to generate an ON / OFF signal of the drive motor 130. The control signal is transmitted to the drive motor 130, (Not shown) for controlling the operation of the apparatus.

For example, when the transfer frame 151 is transferred to a position higher than a predetermined position on the base unit 110, the sensor unit 160 senses this and transmits an OFF signal for stopping the driving of the driving motor 130 to the control unit .

In addition, the sensor unit 160 may be a known sensing unit, but it is preferable to use a switch-type sensing unit such as a limit switch or a proximity switch.

A rail 170 may be provided between the base 110 and the transfer frame 151.

The rail part 170 includes a guide rail 171 provided at an upper portion of the base part 110 and a slide block 171 fixedly provided at a lower portion of the conveying frame 151 along the guide rail 171. [ (173).

The guide rails 171 may be provided in the entire longitudinal direction of the base 110 or may be provided at a predetermined distance in a part of the longitudinal direction. For reference, in the embodiment of the present invention, a plurality of guide rails 171 are arranged in a part of the base 110 in the longitudinal direction.

The slide block 173 may be formed in a shape having a shape capable of accommodating the rail 173, for example, a U-shaped cross section. A plurality of guide rails 171 may be provided on the base portion 110 The guide rail 171 may be provided at a position corresponding to the position and the number of the guide rails 171 and at a lower portion of the conveying frame 151.

When the rotary drum 120 is rotated so that one end of the rotary drum 120 and the rotary coupling hole 153b of the fixed unit 153 are rotationally coupled to each other, 170 in the longitudinal direction of the base unit 110. [0052] As shown in FIG.

Meanwhile, a plurality of balls 15 may be provided in the screw groove 153c formed in the rotation coupling hole 153b. The ball 15 is inserted into the wire groove and the screw groove 153c when the wire groove formed at one end of the rotary drum 120 and the screw groove 153c formed in the rotary coupling hole 153b are screwed, So that one end of the rotary drum 120 can be easily rotated in the rotary coupling hole 153b.

In addition, the driving motor 130 may be provided with an encoder 180. The encoder 180 can measure the rotational speed, the rotational speed, the rotational angle, and the rotational direction of the driving motor 130, and can apply the information to the control unit. Since the encoder 180 is a well-known structure that can be easily implemented and understood by those skilled in the art, a detailed description thereof will be omitted in an embodiment of the present invention.

A wire winch 100 for a stage facility according to an embodiment of the present invention having the above configuration is used for hanging a stage film, a flag, a plan card, and the like used in various stage performances, The drum 120 can be rotated to raise / lower the stage stand.

At this time, when the wire W wound on the rotary drum 120 is unwound or the wire W already wound on the rotary drum 120 is wound, the wire W is wound in a linear form So that it is possible to prevent the wire W from being twisted and to be accurately seated in the wire groove of the rotary drum 120.

That is, the wire winch 100 for a stage facility according to an embodiment of the present invention is a wire winch 100 for hanging a stage film, a flag, a plan card, and the like, used for performing various stages, on the other end of the wire W wound on the rotary drum 120 Next, the rotary drum 120 is rotated by the driving motor 130 to raise / lower the stage facility. Since the rotary drum 120 can be moved along the longitudinal direction of the base 110 fixed to the grid, when the wire W is unwound or wound on the rotary drum 120, the wire W is diagonally It can maintain straight shape without bending.

For example, when the wire W wound on the rotary drum 120 is unwound on the rotary drum 120, the wire W passing through the guide wheel 140 is rotated by the rotary drum 120, As the number of rotations in one direction increases, it is deflected into a diagonal shape and released.

At this time, the rotary drum 120 is gradually transferred in a direction in which the wire W passing through the guide wheel 140 is not bent, for example, toward one side in the longitudinal direction of the base 110, It is possible to induce the true wire W to be loosened while having a straight line shape.

On the other hand, when the wire W is wound on the rotary drum 120, the wire W passing through the guide wheel 140 increases as the number of rotation of the rotary drum 120 in the other direction increases And is wound on the rotary drum 120 while being bent in an oblique direction. As described above, when the wire W is wound on the rotary drum 120 with a diagonal bent shape, the wire W is not correctly inserted into the helical wire groove formed in the rotary drum 120, Lt; / RTI >

At this time, the rotary drum 120 is moved in a direction in which the wire W passing through the guide wheel 140 is not bent, for example, toward the other longitudinal direction of the base portion 110, It is possible to induce the bent wire W to be wound on the rotary drum 120 with a straight line shape.

The wire winch 100 for a stage facility according to an embodiment of the present invention can accurately seat the wire W wound on the rotary drum 120 in the wire groove of the rotary drum 120, Can be prevented from being twisted in the course of winding the wire (W) on the rotary drum (120).

The wire winch 100 for a stage facility according to an embodiment of the present invention is configured such that when the wire W is unwound or wound on the rotary drum 120, the wire W is not straightened in a diagonal direction, It is possible to reduce the tension generated in the wire W to prevent the wire W from being broken and to stably raise and lower the stage facility.

Meanwhile, the guide wheel 140 according to one embodiment of the present invention may be fixedly disposed on the upper portion of the base 110 as described above. The guide wheel 140 may include a plurality of guide rollers 140 wound around the rotary drum 120 And may be arranged in a line at regular intervals from one another along the longitudinal direction of the base unit 110. As shown in FIG.

6 to 9, the guide wheel 140 includes a first bracket 141 and a second bracket 142. The first bracket 141 and the first bracket 141 are disposed in a line at predetermined intervals along the longitudinal direction of the base 110, A second bracket 142 rotatably provided on the first bracket 141 and a second bracket 142 rotatably provided on the second bracket 142 to guide the wire W wound on the rotary drum 120. [ (Not shown).

The first bracket 141 may be fixedly mounted on the upper surface of the base unit 110 using a known fastening means and may include a first frame 141a fixed to the base unit 110, And a second frame 141b protruding upward from both ends of the longitudinal direction of the first frame 141a to press the lower end of the second bracket 142. [

The second frame 141b is formed with a fastening hole h1 through which a fastening member 6 such as a bolt or a screw is inserted.

The second bracket 142 includes a third frame 142a interposed between the pair of second frames 141b and disposed along the longitudinal direction of the first frame 141a, A fourth frame 142b protruding upward from both longitudinal ends of the frame 142a and having a fastening hole h2 communicable with a fastening hole h1 formed in the second frame 141b, And a fifth frame 142c projecting upward from both ends in the width direction of the pulleys 142a and supporting the pulleys 143 in a rotatable manner.

The fastening hole h1 formed in the second frame 141b and the fastening hole h1 formed in the second frame 141b in a state where the third frame 142a of the second bracket 142 is inserted between the pair of second frames 141b, The second bracket 142 is fastened to the first bracket 141 by fastening the fastening member 6 to the fastening holes h1 and h2 after the fastening holes h2 formed in the first bracket 142b are communicatably communicated with each other, ). ≪ / RTI >

That is, the inner surface of the second frame 141b presses the outer surface of the fourth frame 142b by the fastening force of the fastening member 6 to fix the second bracket 142 on the first bracket 141 .

Here, the second frame 141b may be formed so as to protrude upward in the longitudinal direction of the first frame 141a.

This is because when the second frame 141b presses the fourth frame 142b as the fastening member 6 is fastened to the fastening holes h1 and h2, And the pressing force transmitted to the outer surface of the fourth frame 142b is increased while the first frame 141a is folded inward in the longitudinal direction.

The second bracket 142 may be provided with a plurality of drawn wires W when the wire W wound around the rotary drum 120 is drawn out and passed through the plurality of guide wheels 140, The first bracket 141 can be rotated at a predetermined angle and fixed.

That is, before the fastening member 6 is inserted into the fastening holes h1 and h2 formed in the first bracket 141 and the second bracket 142, When the fastening member 6 is fastened to the fastening holes h1 and h2 after turning the first frame 142c to one side or the other side in the width direction of the first frame 141a, The pulley 143 that is rotatably mounted on the fifth frame 142c in association with the first bracket 141 is also rotated at a predetermined angle, .

Therefore, as shown in FIG. 11, the plurality of guide wheels 140 mounted on the base 110 may include the second brackets 142 fixed with different rising angles from each other . Accordingly, the wires W wound on the rotary drum 120 are pulled out to the pulley 143 rotatably mounted on the second bracket 142 without interfering with each other, Can be informed.

Even if the plurality of guide wheels 140 having the above-described configuration are not provided to be shifted from the base 110, the wires W wound on the rotary drum 110 are guided to be drawn out without interfering with each other, The area where the guide wheel 140 is installed on the part 110 can be reduced, so that the overall volume of the wire winch 100 can be reduced.

The third frame 142a of the second bracket 142 is spaced apart from the first frame 141a of the first bracket 141 by a predetermined distance. This is to prevent the bottom surface of the third frame 142a from touching the upper surface of the first frame 141a and interfering with the second bracket 142 when the second bracket 142 is turned.

9, a first sliding surface 144 may be formed on the upper surface of the first frame 141a along the entire longitudinal direction of the first frame 141a, A second sliding surface 145 corresponding to the first sliding surface 144 may be formed on the bottom surface of the third frame 142a along the entire lengthwise direction of the third frame 142a.

When the first sliding surface 144 and the second sliding surface 145 are formed so as to be in sliding contact with the upper surface of the first frame 141a and the bottom surface of the third frame 142a, Even if the third frame 142a of the first bracket 142 contacts the first frame 141a of the first bracket 141, the second bracket 142 can freely turn along the width direction of the first frame 141a .

That is, the first sliding surface 144 formed on the first frame 141a and the second sliding surface 145 formed on the third frame 142a are in sliding contact with each other without interfering with each other, Can be freely pivoted in the first bracket 141.

The third frame 142a can be separated from the first frame 141a by the first sliding surface 144 formed on the first frame 141a and the second sliding surface 145 formed on the third frame 142a, The load transmitted to the pulley 143 and the second bracket 142 by the tension generated in the wire W can be transmitted to the first bracket 142 141 can be stably supported.

The first sliding surface 144 is formed so as to be curved in an oblique shape on the upper surface of the first frame 141a and the second sliding surface 145 is formed on the bottom surface of the third frame 142a It can be formed in a relief shape in the form of a boss.

In the embodiment of the present invention, the fourth frame 142b of the second bracket 142 is pressed against the second frame 141b of the first bracket 141, But is not limited thereto. That is, the second bracket 142 may be fixed on the first bracket 141 without the fourth frame 142b. The side of the fifth frame 142c of the second bracket 142 is pressed against the second frame 141b of the first bracket 141 and the second frame 142b of the second bracket 142 is pressed, Lt; RTI ID = 0.0 > 141 < / RTI >

10, a wire W passing through the upper portion of the pulley 143 is prevented from being separated from the pulley 143 in the fifth frame 142c of the second bracket 142. [ A release prevention pin 146 may be provided.

The release prevention pin 146 is disposed between the pair of fifth frames 142c so that the upper ends of the pair of fifth frames 142c are connected to each other so as not to interfere with the rotational movement of the pulley 143 rotatably provided between the pair of fifth frames 142c . At this time, it is preferable that the fifth frame 142c is formed to have a length longer than the upper portion of the pulley 143 to secure a region where the separation prevention pin 146 can be provided.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments.

Therefore, the scope of the present invention should not be limited by the described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

100: Wire winch for a stage facility 110: Base portion
120: rotating drum 130: driving motor
140: Guide wheel 150:
151: transfer frame 153: fixed unit
153a: main body 153b:
153c: screw groove 153d: guide ball
160: sensor unit 170:

Claims (5)

A base portion;
A rotary drum provided on the upper portion of the base and wound with a wire;
A driving motor for providing rotational force to the rotary drum;
A guide wheel for guiding the wire wound around the rotary drum; And
And a conveying unit that linearly reciprocates the rotary drum along the longitudinal direction of the base by the rotational force of the rotary drum,
Wherein the transfer unit comprises: a transfer frame provided on the base unit and supporting the driving motor and the rotary drum; And a fixed unit fixedly provided on one side of the base in the longitudinal direction and rotatably coupled with one longitudinal end of the rotary drum, wherein the conveyance frame is rotatably supported by the rotary drum and the fixed unit, Is linearly reciprocating along the longitudinal direction of the base portion,
The fixing unit includes: a main body fixedly coupled to one longitudinal side of the base; A rotary coupling hole provided in the main body and into which one end of the rotary drum is inserted; And a screw groove formed on an inner surface of the main body for partitioning the rotary coupling hole and screwed into the wire groove of the rotary drum,
The wire is rolled or pulled at a remaining portion except for one longitudinal end portion of the rotary drum,
A rail portion is further provided between the base portion and the transfer frame, and the rail portion includes a guide rail provided on an upper portion of the base portion; And a slide block movable along the guide rail and fixedly provided at a lower portion of the transfer frame,
The guide wheel is provided at an upper portion of the base portion and is arranged in a number corresponding to the wire bundles wound on the rotary drum and spaced apart from each other along the longitudinal direction of the base portion,
The guide wheel
A first bracket provided at predetermined intervals along the longitudinal direction of the base portion; A second bracket rotatably mounted on the first bracket; And a pulley rotatably provided on the second bracket and guiding a wire wound on the rotary drum,
The first bracket includes: a first frame fixed to the base; And a second frame protruded upward from both ends in the longitudinal direction of the first frame to press down the lower end of the second bracket and to receive a fastening member inserted therein,
The second bracket includes a third frame interposed between the pair of second frames and disposed along the longitudinal direction of the first frame; A fourth frame projecting upwardly from both ends in the longitudinal direction of the third frame and having a fastening hole communicating with the fastening holes formed in the second frame; And a fifth frame protruding upward from both ends in the width direction of the third frame, the fifth frame rotatably supporting the pulleys,
Wherein a first sliding surface is formed on an upper surface of the first frame so as to be inclined in an obtuse angle along the entire longitudinal direction of the first frame and a second sliding surface is formed on a bottom surface of the third frame in a corresponding manner to the first sliding surface, Wherein the sliding surface is formed so as to be curved in the form of an embossed shape along the entire lengthwise direction of the third frame.
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