KR200219047Y1 - Lifting equipment for stage properties - Google Patents

Abstract

The present invention relates to a stage prop lifting device used for elevating stage props, for example, a projector for screening a movie in an auditorium or lighting for a performance, and a conventional lifting apparatus is cumbersome to install and requires excessive parts. There was a problem that there is a risk of frequent breakdowns.

That is, since each belt pulley for winding the motor drive shaft and four wires must be provided to achieve the lifting device, it is cumbersome to install each of these belt pulleys individually on the stage ceiling, and each member of the extension member is The length of the telescopic slide is decided by the movement distance due to interference movement, and there is a possibility that the failure of the member may occur due to the friction in the long hole, and the failure of one of the members of the telescopic slide is the entire failure. The number of parts to achieve this was excessive.

Thus, the present invention is a reduction gear that is engaged with the reduction motor 20 so that the four wires 10 connected to the lower support plate 16 are wound identically on the same drive shaft 24 as shown in FIGS. 1 and 2. A wire drum 26 is provided on both ends of the drive shaft 24 penetrated to both sides of the box 22, and a pair of wires 10 are wound around the box 22, and the components of the elevating device are directly coupled to increase the volume of the elevating device. It is minimized.

In addition, the expansion and contraction plate 18 crosses the expansion and contraction plate 28 so as to extend or compress according to the change of the angle due to the rotation of the expansion and contraction plate 28, and hinges each end and its crossed center to simply expand and contract the expansion and contraction plate 28. By the rotation of the length of the extension was adjusted.

Therefore, in the present invention, the reduction gear box and the reduction gear are made of one body, and the wire drum is installed in the penetrating drive shaft so that the volume of the lifting device is minimized as the wire is wound on the same shaft, thereby simplifying the installation. Since the long hole of the expansion band is eliminated, wear between parts is reduced, thereby preventing the lifting device from being damaged by the expansion band, and the number of parts is reduced, thereby improving productivity.

Description

Lifting equipment for stage properties

The present invention relates to a stage prop lifting device used for lifting a small prop, such as a projector for screening a movie in an auditorium, or an illumination for a performance. In detail, the installation is simplified by minimizing the volume of the lifting device. In addition, the present invention relates to a stage prop lifting device which prevents damage to an extension platform for assisting lifting.

In general, the stage props such as a projector or a light is a lot of weight, so it can not be raised or lowered manually, and the stage propagates the stage props by adjusting the length of the wire using an electric motor.

However, these stage props are mostly adopted by a method of elevating with a wire, so there is a problem of swinging back and forth and left and right during lifting, and there is a problem that fine movement occurs even after the arrangement of the stage props.

It was developed by the lifting device using the extension (name: stage small lifting device, registration number: 20-0129753).

It is a combination between the upper support plate installed on the ceiling of the stage and the lower support plate on which the stage accessory is mounted so as to intersect to prevent the shaking of the wire. The stretcher consists of a pair of plates and cross bars connected by bolts at both ends. These rectangular frames are stacked to form a rectangular pillar while forming a rectangular frame, and the horizontal bars forming the rectangular frame are connected with horizontal and horizontal plates having long holes formed by hinge bolts installed at the left and right sides, and vertical and vertical plates with bolts installed at the center of the vertical bars. The center is fastened to this bolt, and both ends thereof are connected to the bolts at the left end of the vertical column on the lower layer and the bolts at the right end of the vertical column on the upper layer to be intersected with an X shape.

Therefore, when the wire is wound or unwound by the driving of the motor, the hinged part is slid along the long hole length of the vertical and horizontal expansion plates, and the expansion and contraction is stretched or compressed, and the movement of the stage propagated by the expansion and contraction is caused. This is to be avoided.

As described above, a lifting device using a motor and a wire is used for the lifting and lowering of the stage accessory, and a lifting device using a stretch bar is developed to prevent the shaking in the lifting using the wire.

However, such a lifting device has a problem that the mounting is cumbersome, excessive parts take, and there is a risk of frequent breakdowns.

To explain this in more detail, the stage elevating device consisting of a separate upper and lower support plates and a stretchable linking device also uses wires, and preferably the wires are connected to four corners of each lower support plate.

Therefore, a winding device for this should be provided, which is required to wind or unwind each wire in the same way.

As a winding device to achieve this, it is most preferable to wind the wire by the same rotation from one motor driving shaft, and for this purpose, a belt pulley for winding the motor driving shaft and four wires has to be provided. However, it was cumbersome to install each of these belt pulleys individually on the ceiling of the stage.

On the other hand, such a lifting device must be secured.

This is because most of the stage elevating device is installed and driven on the ceiling of the auditorium or the performance hall, so that the worker periodically goes up and manages it.

By the way, each member of the expansion table is moved in an interference manner in the long hole, and the length adjustment of the whole extension table is determined according to the moving distance.

Therefore, there is a possibility that the parts may be damaged by the friction of the members in the long hole, and the failure of one of the members of the expansion and contraction is a whole failure, and for this reason, the reliability of the lifting device is not sufficiently secured. The conventional one has been excessive in the number of parts for forming a stretch table.

In this regard, the present invention has an object to provide a stage accessory lifting device for improving the above problems.

The present invention for this purpose is to install a wire drum in which a pair of left and right wires are wound on both ends of the drive shaft penetrated to both sides of the reduction gear box engaged with the reduction motor so that the four wires connected to the lower support plate are wound on the same drive shaft. In addition, by minimizing the volume of the lifting device by directly combining the components forming the lifting device.

In addition, the expansion table is hinged to each end of the expansion plate and its center so as to extend or compress according to the change of the angle by the rotation of the expansion plate is to adjust the length of the expansion plate by simply rotating the expansion plate.

Therefore, in the present invention, the reduction gear box and the reduction gear are made of one body, and the wire drum is installed in the penetrating drive shaft so that the volume of the lifting device is minimized as the wire is wound on the same shaft, thereby simplifying the installation. Since the long hole of the expansion band is eliminated, wear between parts is reduced, thereby preventing the lifting device from being damaged by the expansion band, and the number of parts is reduced, thereby improving productivity.

1 is a private facility of the stage accessory lifting apparatus according to the present invention,

Figure 2 is a private facility showing the operating state of the stage accessory lifting apparatus according to the present invention.

-Explanation of symbols for the main parts of the drawings-

10-wire, 12-guide roller,

14-upper support plate, 16-lower support plate,

18-telescopic arm, 20-deceleration motor,

22-reduction gearbox, 24-drive shaft,

26-wire drum, 28-telescopic plate,

30-limit switch part, 32-limit gear,

34-limitshaft, 36-Dongguk,

38-limit switch.

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

Exemplary drawings Figure 1 is a private facility of the stage accessory lifting apparatus according to the present invention, Exemplary drawings Figure 2 is a private facility showing the operating state of the stage accessory lifting apparatus according to the present invention.

The present invention is installed on the ceiling of the stage is driven by a motor 10, the upper support plate 14 through which the guide roller 12 and the lower support plate is mounted on the stage accessory is connected to the lower support plate ( 16 is provided between the expansion and contraction (18), which is connected to the lower support plate (16) in the expansion and compression of the expansion and contraction while the hinged parts are slid according to the length of the expansion plate A pair of right and left wires 10 are wound around both ends of the drive shaft 24 penetrated to both sides of the reduction gear box 22 engaged with the reduction motor 20 so that the wire 10 is wound identically on the same drive shaft 24. The wire drum 26 is installed, and the stretchable plate 18 is stretched or compressed so that the stretchable plate 18 is stretched or compressed according to the change of the angle due to the rotation of the divided stretchable plate 28 so that each end and its cross are crossed. The center is hinged so that the amount of extension 18 The chiyida stage props, characterized in that the landing been coupled to the center of the upper supporting plate 14 and the lower support plate (16).

The reduction motor 20 decelerates the number of revolutions transmitted to the reduction gear (not shown) of the reduction gear box 22 by primary, and the reduction gear 20 is directly engaged with the reduction gear box 22. .

In addition, by installing the limit switch unit 30 for controlling the lifting limit of the lifting device in the reduction gear box 22, each component constituting the lifting device is as close as possible.

The limit switch unit 30 has a limit gear 32 engaged with the internal reduction gear of the reduction gear box 22 to protrude, and the limit shaft 34 is installed at the center of the limit gear 32.

The limit switch portion 30 is provided with a threaded line corresponding to the lifting range of the device on the limit shaft 34, and is provided with a movable tool 36 which is engaged with the threaded line and moves along the longitudinal direction of the limit shaft 34. This movable tool 36 is for operating the limit switch 38 arrange | positioned at the both ends of the limit shaft 34. As shown in FIG.

The movable tool 36 is linearly moved in accordance with the rotation of the limit shaft 34, the limit switch 38 is located at the limit of the lifting, and when the movable tool 36 operates the limit switch 28, The application of power to the deceleration motor 20 is controlled by the signal.

The illustrated limit switch 38 is arranged in pairs at both ends of the limit shaft 34 which determines the limit of the rise and the limit of the fall. When one limit switch 38 is broken, the other limit switch 38 does this. To supplement.

The drive shaft of the elevating device, that is, the drive shaft 24 of the reduction gear is penetrated to both sides of the reduction gear box 22, and the wire drum 26 is separately provided therein.

The wire drum 26 is configured such that a pair of wires 10 on the left and right sides are wound together, and the center of the wire drum 26 is divided by a diaphragm to wind the two wires 10.

The wire drum 26 is provided at both ends of the drive shaft 24 so that four wires 10 are wound by the same drive shaft 24 at the same rotation.

As described above, the present invention has the above-described wire drum 26 is installed, and each component constituting the elevating device is combined as much as possible to reduce the volume of the elevating device as much as possible and thus install the driving unit on the upper support plate 14 as shown. It is possible to do this, and the installation is simplified.

On the other hand, the stretching table 18 of the present invention is made so that the elongation and compression is performed by changing the coupling angle by the rotation of the member.

That is, each end of the expansion and contraction plate 28 and the center of the expansion and contraction is hinged to the extension or compression in accordance with the change of the angle by the rotation of the expansion and contraction plate 28 is divided between the upper support plate 14 and both ends It is coupled to the center of the lower support plate (16).

Therefore, the interference between components due to the long hole is eliminated as in the prior art, and the length of the expansion and contraction table 28 is adjusted by simply rotating the expansion and contraction plate 28, thereby reducing the risk of occurrence of the failure along with the wear of the components. The number of parts is minimized.

As described above, according to the present invention, the reduction gear box, the reduction gear, and the limit switch part are formed in one body, and a wire drum is installed in the penetrating drive shaft so that the volume forming the lifting device is minimized as the wire is wound on the same shaft. On the other hand, the installation is simplified, and the long holes of the extension belt are deleted, thereby reducing wear between parts, thereby preventing damage of the lifting device by the extension belt and reducing the number of parts, thereby improving productivity.

Claims (1)

Between the upper support plate 14 installed on the stage ceiling and driven by a motor through the guide roller 12 and the lower support plate 16 on which the stage accessory is mounted and the wire 10 is connected. An extension table 18 is installed on the extension wire, which is connected to the lower support plate 16 in which the extension table is stretched or compressed while the hinged part is slid along the length of the expansion plate. Wire drum in which one set of wires 10 are wound on both ends of the drive shaft 24 penetrated to both sides of the reduction gear box 22 engaged with the reduction motor 20 so that the same winding is performed on the same drive shaft 24. (26) is installed, the expansion and contraction plate 18, the expansion and contraction of the expansion and contraction plate 28 so as to expand or compress according to the change of the angle by the rotation of the separate expansion and contraction plate 28, each end and its crossed center hinged Are combined so that both ends of the stretchable 18 are upper Stage accessory lifting device, characterized in that coupled to the center of the fingerboard 14 and the lower support plate (16).