KR102221240B1 - Winch for stage facility - Google Patents

Abstract

The present invention relates to a winch for towing a stage facility, which comprises: a drum (3) rotatably mounted between support members (2, 2′) spaced apart from each other and fixed to a base (1); a motor (5) for driving the drum (3); a reducer (6) connected to an output shaft (51) of the motor; and guide pulleys (10) arranged horizontally by corresponding to each wire rope at the lower side of the drum (3) to guide a plurality of wire ropes for traction of stage facilities drawn from the drum (3). According to the present invention, the motor (5) and the reducer (6) are built into the drum (3). The winch further comprises: an electric gear device (7) engaged with a gear (61) provided on an output shaft of the reducer (6); and a ring gear (31) connected to the inside of one end member (32) of the drum and driven by the electric gear device (7). Accordingly, it is possible to easily install the winch in a narrow stage installation space. By providing auxiliary guide pulleys that assist in arranging the wire rope at a right angle between the plurality of pulleys guiding each of the plurality of wire ropes from the drum to the stage facilities and the drum, the problem of wire rope coming off the pulleys during operation is prevented, thereby allowing smooth working and preventing noise generation.

Description

Winch for towing stage facilities{WINCH FOR STAGE FACILITY}

The present invention relates to a winch for towing stage facilities, and in particular, a winch with a motor and a reducer built in a winch drum for individually raising and lowering stage facilities such as a plurality of device rods, backdrops, and lighting used for stage performances to a predetermined position. It relates to a winch for towing stage facilities with compact and improved maintenance convenience.

In general, in performance stages such as plays or operas, various device rods and backdrops are used according to the performance scene, and the positions of lights are also adjusted for dramatic effects. Adjustment of the positions of the device rods and backdrops is performed by setting the stage devices required from the beginning to the end of the performance in a preset position, and then raising and removing the previous stage devices in sequence according to the progress of the performance.

A winch is used to elevate and descend such device rods, backdrops or lights, and the winch is a drum for winding up the backdrops and wire ropes connected to the lights, a motor and a reducer for rotating the drum forward and backward, along with backdrops and lighting. It includes a number of guide pulleys for guiding the wire rope connected to the field to the drum.

As a conventional example of such a winch, Korean Patent Registration No. 10-1745514 (registration date June 02, 2017) includes a base portion; A rotating drum provided on the upper part of the base and on which a wire rope is wound; A driving motor that provides rotational force to the rotating drum; A guide wheel for guiding the wire rope wound around the rotating drum; And a transfer unit for linearly reciprocating the rotary drum along the longitudinal direction of the base unit by the rotational force of the rotary drum.

In addition, as another example, Korean Patent Registration No. 10-2079506 (registration date February 14, 2020) includes a screw drum for winding or releasing a wire rope for ascending and descending a stage device; A linear moving means installed on a drum support plate or a rotating shaft supporting the screw drum to convert the rotational motion of the screw drum into a linear motion; A base frame supporting the drum support plate to be linearly movable; A guide pulley comprising an upper guide pulley installed inside the front end of the base frame to collect each wire rope in a vertical pulley and guide horizontally, and a lower guide pulley that guides the wire rope that has passed through the upper guide pulley to the wire rope groove at the bottom; And a multi-conical pulley made of multi-conical pulleys that collect each wire rope horizontally from the lower guide pulley parallel to the lower part of the base frame and supply it to the tangential position of the screw drum. The multi-conical pulley unit is installed as many as the number of wire ropes and includes first to n-th multi-conical pulleys installed at a position inside the base frame so as not to add an installation height; The second to n-th multi-conical pulleys include a main conical pulley installed so as to be accurately directed in the tangential direction of the screw drum, and an auxiliary conical pulley for moving other adjacent wire ropes that are not selected to the next multi-conical pulley; The main conical pulley and the auxiliary conical pulley have disclosed a conical multi-pull stage exclusive winch in which the vertical position of the lead wire rope is inclined so that the vertical position of the lead wire rope is closer to the outer diameter of the screw drum than the vertical position of the lead wire rope.

However, the above-described conventional winch for stage facilities occupies a large space because a motor and a reducer are installed on the side of the winch, and the wire rope is arranged in an inclined manner when the wire rope is drawn from the drum to the pulley. In addition to the risk of separation, there is a lot of difficulty in maintenance and maintenance as a number of pulleys are provided along with the inclined arrangement of the wire rope.

Korean Patent Registration No. 10-1745514 (Registration Date June 2, 2017) Korean Patent Registration No. 10-2079506 (Registration Date February 14, 2020)

An object of the present invention relates to a winch for towing stage facilities in order to solve the problems of the prior art described above. In particular, stage facilities such as a plurality of device rods, backdrops, and lights used for stage performances are individually moved to a predetermined position. It is to provide a winch for towing stage facilities with a compact winch and improved maintenance and maintenance convenience by embedding a motor and a speed reducer in the winch drum that raises and lowers.

In order to achieve the above object, the winch for towing stage facilities according to the present invention includes a drum rotatably mounted between spaced support members fixed to a base, a motor for driving the drum, and an output shaft of the motor. In a stage facility traction winch having a guide pulley arranged horizontally in correspondence with each wire rope at a lower side of the drum to guide a plurality of wire ropes for traction of stage facilities drawn from a connected reducer and a drum, the winch The motor and the reducer are built into the drum, the electric gear device meshing with the gear provided on the output shaft of the reducer, and a ring gear connected to the inside of one end member of the drum and driven by the electric gear device. It is composed of features.

The electric gear device includes a first electric gear meshing with a gear provided on an output shaft of a reduction gear, a second electric gear provided on the opposite side of the first electric gear shaft, a third electric gear meshing with the second electric gear, and the third electric gear. And a fourth electric gear provided at the opposite end of the gear shaft, and the fourth electric gear is configured to rotate the ring gear by being in contact with the ring gear.

The ring gear is fixed to the inner cylinder of the end member of the drum, the first electric gear and the second electric gear are provided on a shaft rotatably mounted on one side of the electric gear case, and the third electric gear is a third electric gear. 2 It is provided on a shaft that is laterally spaced from the electric gear and rotatably mounted on the other side of the electric gear case.

The electric gear case is provided with a support shaft outwardly supported so as not to rotate with respect to one support member provided on both sides of the drum, and the support shaft protruding to the rear side of the motor is supported not to be rotated by the other support member, and the motor and The reduction gear and the electric gear unit and the ring gears are built into a cylindrical housing provided inside the drum, and both openings of the housing are bolted to the end members on both sides.

In addition, in order to guide the plurality of wire ropes for towing stage facilities drawn out from the drum, the wire ropes are accurately guided in the tangential direction for each of the guide pulleys horizontally arranged in correspondence with each wire rope at the lower side of the drum. Auxiliary guide pulleys may be arranged vertically on the rear side of the drum.

The winch for stage facility traction according to the present invention can be easily installed in a narrow stage facility installation space by having a compact configuration with a motor and a reducer built in the drum, and stage facilities for each of a plurality of wire ropes from the drum. With a plurality of pulleys that guide the wire and auxiliary guide pulleys that assist in arranging the wire rope at a right angle between the drum, it prevents the problem that the wire rope is separated from the pulleys during operation, so that the operation is smooth and noise is prevented. There is an effect.

1 is a schematic perspective view of a winch for towing stage facilities according to the present invention.
Figure 2 is a perspective view of a drum in which the motor and the reducer of Figure 1 are built.
Figure 3 is a cross-sectional view of the drum of Figure 2;
Figure 4 is a schematic exploded perspective view of the drum of Figure 3;
5 is a view showing the arrangement of a pulley and an auxiliary guide pulley for guiding a plurality of wire ropes from the drum to stage facilities in FIG. 1, respectively, and is a plan view in which the drum is omitted for simplicity of the drawing.

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

1 to 4, the winch for stage facility traction according to the present invention is rotatably mounted on the support members 2 between the support members 2 and 2 ′ spaced apart from each other fixed to the base 1 The drum 3, the forward and reverse rotation motor 5 built in the drum 3, the reducer 6 connected to the output shaft 51 of the motor, and the gear 61 provided on the output shaft of the reducer. The gear unit 7, the ring gear 31 driven by the electric gear unit 7, the one end member 32 coupled to the ring gear 31, the rear of the motor 5 of the electric gear unit Each wire from the lower side of the drum (3) to guide the other end member (32') supported by the support shaft (52) protruding from the drum (3) and a plurality of wire ropes for traction of stage facilities drawn out from the drum (3). It includes guide pulleys 10 arranged horizontally in correspondence with the rope.

The openings on both sides of the cylindrical housing 4 in which the motor 5, the reducer 6, the electric gear unit 7 and the ring gear 31 are embedded are bolted to the end members 32 and 32' on both sides. It is fixed and closed.

The electric gear device 7 includes a first electric gear 71 engaged with a gear 61 provided on the output shaft of the reducer 6, and a second electric gear 72 provided on the opposite side of the shaft of the first electric gear 71 , A third electric gear 73 meshed with the second electric gear 72, and a fourth electric gear 74 provided at an end opposite to the shaft of the third electric gear 73. The fourth electric gear 74 rotates the ring gear 31 by interlocking with the ring gear 31, and the ring gear 31 is fixed to the inner cage of the end member 32 of the drum. As a result, the drum 3 is eventually rotated. The first electric gear 71 to the third electric gear 74 are accommodated in the electric gear case 8, and the first electric gear 71 and the second electric gear are of the electric gear case 8 to be described later. It is provided on a shaft rotatably mounted on one side, and the third electric gear 73 is laterally spaced from the second electric gear 72 and is provided on a shaft rotatably mounted on the other side of the electric gear case 8. .

The electric gear case 8 is provided with a support shaft 81 outwardly supported so as not to rotate with respect to the support member 2 on one side provided on both sides of the drum, and a support shaft protruding to the rear side of the motor 5 ( 53) is supported so as not to be rotated by the other support member 2'. The case 8 is fixed to the reducer case 9 coupled to the housing of the motor 5.

In addition, with respect to the support shaft 81 of the case 8 and the support shaft 53 protruding to the rear of the motor, the ring is formed by bearings 35 disposed between the end members 32 and 32 ′ on both sides. By the rotation of the gear 31, both end members 32 and 32 ′ together with the drum 3 can be freely rotated, while the motor 5, the reducer 6 and the electric gear unit 7 are stopped. It is supported by the support members 2 and 2'on both sides in the state.

The drum may be fixed to the housing by a fastening means such as a bolt, or may be coupled to the housing by other coupling means.

Thereby, when the motor 5 is operated, it is decelerated by the reducer 6, and the power is transmitted by the electric gear device 7 to rotate the ring gear 31, whereby the end member ( 32) is coupled and the drum is coupled to the end member, and the drum is eventually rotated, so that the wire rope is wound or unwound on the drum.

As described above, since the winch according to the present invention has a motor and a speed reducer built into the drum, it can be compactly configured, so that it is easy to install even in a narrow space, and it is possible to reduce manufacturing cost.

A plurality of guide grooves 35 are formed on the outer circumferential surface of the drum to prevent the wire ropes from slipping in the lateral direction.

In addition, in the present invention, in order to guide a plurality of wire ropes 100 for traction of stage facilities drawn from the drum 3, the drum 3 is For each of the guide pulleys 10 arranged horizontally in correspondence with each wire rope 100 from the lower side, the auxiliary guide pulley 10' vertically on the rear side of the drum 3 so that the wire ropes are accurately guided in the tangential direction. ) Can be placed.

As a result, each wire rope drawn out from the drum is accurately and stably guided in the tangential direction from the auxiliary guide pulleys 8'to the guide pulley 10, so that the wire ropes are drawn obliquely from the drum to the guide pulley as in the prior art. As a result, the problem of noise generation and the problem that the wire rope is separated from the guide pulley are prevented.

The present invention can be used in a winch for winding a wire rope for towing a stage facility.

1: base 2,2': support member
3: drum 4: housing
5: motor 6: reducer
7: electric gear device 8,9: case
10: guide pulley 31; Ring gear
61: gear 71: first electric gear
72: second electric gear 73: third electric gear
74: 4th electric gear 10': auxiliary guide pulley

Claims (5)

A drum (3) rotatably mounted between the support members (2, 2') spaced apart from each other fixed to the base (1), a motor (5) for driving the drum (3), and an output shaft of the motor ( A guide pulley arranged horizontally corresponding to each wire rope at the lower side of the drum 3 to guide the plurality of wire ropes for towing stage facilities drawn from the reducer 6 connected to 51) and the drum 3 Having (10),
The motor 5 and the reducer 6 are built into the drum 3, and the electric gear device 7 meshes with a gear 61 provided on the output shaft of the reducer 6, and one end member of the drum In the winch for towing stage facilities comprising a ring gear 31 connected to the inner side of (32) and driven by the electric gear device (7),
The electric gear device 7 includes a first electric gear 71 engaged with a gear 61 provided on the output shaft of the reducer 6, and a second electric gear 72 provided on the opposite side of the shaft of the first electric gear 71 , A third electric gear 73 meshed with the second electric gear 72, a fourth electric gear 74 provided at an end opposite to the shaft of the third electric gear 73, and the fourth electric gear ( 74) is a winch for stage facilities traction, characterized in that the ring gear (31) is inscribed and engaged to rotate the ring gear (31).
delete The method of claim 1,
The ring gear 31 is fixed to the inner cylinder of the end member 32 of the drum, and the first electric gear 71 and the second electric gear are rotatably mounted on one side of the electric gear case 8 A stage facility, characterized in that the third electric gear 73 is provided on a shaft rotatably mounted on the other side of the electric gear case 8 and spaced laterally from the second electric gear 72 Winch for towing.
The method of claim 3,
The electric gear case 8 is provided with a support shaft 81 outwardly supported so as not to rotate with respect to the support member 2 on one side provided on both sides of the drum, and a support shaft protruding to the rear side of the motor 5 ( 53) is supported so as not to rotate on the other support member 2',
The motor 5, the reducer 6, the electric gear unit 7 and the ring gear 31 are embedded in a cylindrical housing 4 provided inside the drum, and both openings of the housing 4 are end members on both sides. A winch for towing stage facilities, characterized in that it is bolted to (32,32').
The method of claim 1,
In order to guide the plurality of wire ropes 100 for traction of stage facilities drawn out from the drum 3, a guide pulley arranged horizontally corresponding to each wire rope 100 at the lower side of the drum 3 ( 10) A winch for stage facility traction, characterized in that the auxiliary guide pulleys (10') are arranged vertically on the rear side of the drum (3) so that the wire ropes are accurately guided in the tangential direction for each of them.

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