Wire rope binding structure of disk drum for stage equipment

Abstract

The present invention relates to a wire rope binding structure for a disc drum of a stage apparatus, and more specifically, to a technology that enables self-binding so that the end of a wire rope wound on a disc drum does not slip out, thereby allowing binding without the use of a separate clip and preventing the wire rope from slipping out, thus preventing malfunctions of the stage apparatus. That is, the present invention relates to a wire rope binding structure for a disc drum in which a plurality of dividing plates and gap plates are alternately arranged on the inner side to allow the wire rope to be wound, and an outer plate is coupled on the outer side, wherein the structure further comprises a binding device coupled to the outer side of the outer plate to fix the end of the wire rope; and wherein the binding device comprises: The device is characterized by comprising: a disc body having a connecting hole formed therein for receiving a wire rope to be fixed in the disc drum; a first binding hole formed through the inner side of the disc body in an outer direction so that the wire rope is first connected through it; and a second binding hole formed at a certain distance from the first binding hole so that it is secondarily inserted through the first binding hole.

Description

Technology Field

[0001] The present invention relates to a wire rope binding structure for a disc drum of a stage apparatus, and more specifically, to a technology that enables self-binding so that the end of a wire rope wound on a disc drum does not slip out, thereby allowing binding without the use of a separate clip and preventing the wire rope from slipping out, thus preventing malfunctions in the stage apparatus. Background Technology

[0003] Generally, stage equipment refers to mechanical devices installed in the performance space for various shows such as plays, musicals, operas, and concerts, which control the appropriate transition of stage backgrounds or sets according to the situation and timing.

[0005] These stage sets move multiple stage poles up and down. Since backgrounds, heavy and large set decorations, lighting equipment, and sound equipment are installed on these poles, it is difficult to proceed with a proper performance if a malfunction occurs, and if a stage pole falls due to a breakdown in the stage set, it can cause casualties.

[0007] In addition, the stage set is equipped with multiple wire rope disc drums that control the stage installation poles by winding or unwinding the wire ropes, and multiple wire ropes are installed in each drum.

[0009] In order for the above wire rope to be installed on the disc drum, the end of the wire rope, that is, the part where the wire rope is fixed to the disc drum, is fastened so that it does not come off the disc drum. At this time, as shown in FIG. 1, the wire rope is fastened by fastening a nut to a U-shaped fixing clip and securing the wire rope only by the fastening pressure of the nut.

[0011] However, this method has the problem that the nut loosens due to vibrations caused by the long-term operation of the disc drum, noise is generated when the fixing clips collide, and as the number of wire ropes increases, it becomes difficult to manage and looks messy.

[0013] In addition, since the wire ropes used in stage sets are structured by twisting several small strands together to form a single wire rope, there is a problem where the strands unravel starting from the end if the end of the wire rope is exposed. In the above method as well, the end of the wire rope unravels because the end is exposed, and on-site, the unraveled part of the wire rope is managed by continuously cutting it off.

[0015] As related prior art, Registered Patent No. 10-2362407 (Wire rope disc drum for stage equipment) and Registered Patent No. 10-1683101 (Wire rope disc drum for stage equipment) commonly use a separate fixing clip to secure the wire rope to the disc drum.

[0016] However, since the fixing clip in the aforementioned prior art is a separate component, it cannot fully perform its fixing function if the fixing clip is lost, and because the wire rope is held solely by the coupling force of the screw, the structure is such that even if the coupling force of the screw is slightly insufficient, only the wire rope can be pulled out of the fixing clip by the pulling force of the wire rope.

[0017] Furthermore, since none of the aforementioned prior art technologies can solve the problem of wire unraveling in the wire rope, maintenance issues such as the need to periodically cut the ends occur, as explained earlier. Prior art literature

[0019] Registered Patent No. 10-2362407 (Wire rope disc drum for stage equipment) Registered Patent No. 10-1683101 (Wire rope disc drum for stage equipment) The problem to be solved

[0020] The present invention is designed to solve the above-mentioned problems and aims to provide a wire rope binding structure for a disc drum of a stage device that can fundamentally prevent the problem of wire unraveling at the end of the wire rope by having a coupling structure that prevents the risk of loss by binding the end of the wire rope to the disc drum and fixing it itself without a separate fixing clip, and by ensuring that the pulling force of the wire rope does not act significantly at the fixing point. means of solving the problem

[0022] The present invention relates to a wire rope binding structure of a disc drum in which a plurality of dividing plates and gap plates are alternately arranged on the inner side to allow a wire rope to be wound, and an outer plate is coupled on the outer side, wherein the binding device further comprises a binding device coupled to the outer side of the outer plate to fix the end portion of the wire rope, and wherein the binding device comprises: a disc body having a connecting hole formed therein for receiving a wire rope to be fixed in the disc drum; a first binding hole formed through the inner side of the disc body in an outer direction to allow the wire rope to be primarily coupled through it; and a second binding hole formed at a certain distance from the first binding hole to allow the wire rope to be secondarily inserted through the first binding hole.

[0024] In addition, the above-mentioned binding device is characterized by further including a fixing member for fixing a wire rope.

[0026] In addition, the fixing member is screw-coupled to screw holes formed in the first binding hole and the second binding hole, respectively, so that the fixing member presses the wire rope located inside the first binding hole and the second binding hole to achieve fixation.

[0028] In addition, the second binding hole is characterized by being formed from the outside, but not penetrating to the location of the connecting hole, and having a closed end. Effects of the invention

[0030] The present invention secures the end of a wire rope using a binding device coupled to a disc drum without using a separate fixing clip, thereby eliminating the risk of losing the fixing clip and enhancing the convenience of fixing.

[0032] In addition, since the present invention has a structure in which a fixing member is primarily fixed in the first fixing hole and another fixing member is secondarily fixed in the second fixing hole, even if a wire rope is pulled inside the connecting hole, the pulling force acts only on the first fixing hole and is not transmitted to the second fixing hole, thereby having the effect of having excellent fixing ability.

[0034] In addition, the present invention has a structure in which the end of the wire rope is not exposed to the outside, thereby fundamentally preventing the problem of wire unraveling and improving the durability of the wire rope. Brief explanation of the drawing

[0036] FIG. 1 is a photograph of a wire rope being bound using a fixing clip used in a conventional disc drum. FIG. 2 is a drawing showing a wire rope binding structure of a disc drum for a stage device according to the present invention. FIG. 3 is a drawing showing a binding device applied to the wire rope binding structure of a disc drum for a stage device according to the present invention. FIG. 4 is a cross-sectional view showing the internal structure of a binding device applied to the present invention. FIG. 5 to 8 are drawings showing the process of a wire rope being fixed through the first binding hole and the second binding hole of the binding device according to the present invention. FIG. 9 to 10 are drawings showing another embodiment of a coupling bolt applied to the present invention. Specific details for implementing the invention

[0037] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Furthermore, in describing the present invention, detailed descriptions of related known functions or configurations are omitted if it is determined that such detailed descriptions may unnecessarily obscure the essence of the present invention.

[0039] The present invention relates to a wire rope binding structure of a disc drum, wherein, as shown in FIG. 2, a plurality of dividing plates (100) and gap plates (200) are alternately arranged on the inner side to allow a wire rope to be wound, and an outer plate (300) is coupled on the outer side.

[0040] The feature of the present invention further includes a binding device (400) coupled to the outer side of the outer plate (300) to fix the end of the wire rope, wherein the binding device (400) comprises: a disc body (410) having a connecting hole (411) formed therein to allow the wire rope to be fixed in the disc drum to be fed in; a first binding hole (420) formed through the disc body (410) from the radially inner side to the radially outer side, through which the wire rope fed into the connecting hole (411) is first fed and coupled; and a second binding hole (430) formed at a certain distance from the first binding hole (420), through which the wire rope that has passed through the first binding hole (420) is secondarily inserted.

[0042] The configuration of the dividing plate (100), gap plate (200), and outer plate (300) constituting the disc drum of the present invention is a known configuration, consisting of a dividing plate (100) with a large diameter and a gap plate (200) with a small diameter, and a wire rope is wound between the dividing plates (100), that is, on the gap plate (200). In addition, a groove is formed in the gap plate (200) so that the fastening part of the wire rope can pass out to the outside of the outer plate (300), and holes are formed in the dividing plate (100) and the outer plate (300).

[0044] And the binding device (400) of the present invention is coupled to the outer side of the outer plate (300) of the disc drum to secure the end of the wire rope that comes out of the hole of the disc drum. Here, regarding the coupling method of the binding device (400), the binding device (400) may be fixed independently to the outer plate (300), but it is preferable to be coupled and fixed together with other components. That is, the coupling bolt (500) is coupled in a manner that penetrates the components of the binding device (400), outer plate (300), dividing plate (100), and gap plate (200) so that they are joined as a single unit.

[0046] As shown in FIGS. 3 and 4, the binding device (400) of the present invention is composed of a disc body (410), a first binding hole (420), and a second binding hole (430), and each component is described as follows.

[0048] The above-mentioned disc body (410) has a connecting hole (411) formed in the center and is connected to the outer plate (300) by a connecting bolt (500). A wire rope that comes out from the inside can be pulled out through the connecting hole (411) formed in the above-mentioned disc body (410).

[0050] In the disc body (410) of the present invention, a first binding hole (420) and a second binding hole (430) are formed. The first binding hole (420) is configured to be completely penetrating from the inside to the outside of the disc body (410), and a wire rope is inserted therein. To explain the location of the first binding hole (420) in more detail, it penetrates from the inner edge of the connecting hole (411) of the disc body (410) to the outer edge of the disc body (410).

[0051] The size of the first binding hole (420) is formed to be slightly larger than the diameter of the wire rope to allow for smooth insertion. Since the size of the first binding hole (420) cannot be formed larger than the thickness of the disc body (410), it is advisable to form the thickness of the disc body (410) while carefully considering the size of the hole.

[0053] The first binding hole (420) is the part where the wire rope is inserted first, and the insertion direction is from inside the connecting hole (411) of the disc body (410) to the outside of the edge of the disc body (410). And since the first binding hole (420) is in the shape of a hole rather than a groove, there is no risk of the wire rope separating unless it is pulled in the direction of insertion.

[0055] The second binding hole (430) is formed at a certain distance from the first binding hole (420), and the wire rope that has passed through the first binding hole (420) is inserted into the second binding hole (430) to form a double insertion structure.

[0056] The gap between the first binding hole (420) and the second binding hole (430) is preferably formed considering the bending of the wire rope as shown in FIGS. 3 and 4. That is, the part that passes through the first binding hole (420) and then leads to the second binding hole (430) is bent into a "U" shape.

[0057] Therefore, if the distance between the first binding hole (420) and the second binding hole (430) is too close, the wire rope may bend severely and cause deformation, and if the distance is too far, the number of wire ropes to be bound decreases, resulting in a problem of reduced space efficiency.

[0059] And the binding device (400) of the present invention further includes a fixing member (440) for fixing a wire rope. As shown in the drawing, the fixing member (440) is screw-coupled to screw holes formed in the first binding hole (420) and the second binding hole (430), respectively, so that the fixing member (440) presses the wire rope located inside the first binding hole (420) and the second binding hole (430) to fix it.

[0061] The above fixing member (440) is formed such that the part pressing the wire rope is not formed in the shape of a flat surface, but is formed in a pointed shape as shown in the drawing, so that the end of the fixing member (440) penetrates the inside of the wire rope and is fixed so that the wire rope is not separated.

[0063] As such, the binding device (400) of the present invention has a structure in which a fixing member (440) is first fixed in the first binding hole (420) and another fixing member (440) is secondarily fixed in the second binding hole (430). Therefore, even if the wire rope is pulled inside the connecting hole (411), the pulling force acts only on the first binding hole (420) and is not transmitted to the second binding hole (430). Consequently, the problem of the wire rope being unfastened does not occur, and even if one part of the fixing member (440) is separated, the fixed state can be maintained.

[0065] And another feature of the present invention is that the second binding hole (430) extends from the radially outer side of the disc body (410) to the radially inner side. as The structure is such that a hole is formed, but the end portion is closed and does not penetrate to the location of the connecting hole (411). That is, unlike the shape of the first binding hole (420) which is completely penetrated, the second binding hole (430) has a structure where the end portion is closed, so the end portion of the wire rope inserted into the second binding hole (430) is not exposed at all and remains buried.

[0066] Therefore, the strands at the ends of the wire rope can maintain their original spirally twisted state without unraveling.

[0068] FIGS. 5 to 8 illustrate the process of fixing a wire rope through the first binding hole (420) and the second binding hole (430) of the present invention. First, as shown in FIG. 5, it is inserted into the first binding hole (420). Then, as shown in FIG. 6, the wire rope that has passed through the first binding hole (420) is bent to align with the direction of the second binding hole (430).

[0070] And as shown in FIG. 7, it is inserted a second time into the second binding hole (430). In this state, the end of the wire rope is inserted into the second binding hole (430), and the connected rear part is inserted into the first binding hole (420).

[0071] With the first binding hole (420) and the second binding hole (430) inserted in this manner, as shown in FIG. 8, the fixing member (440) is connected to both sides to press the wire rope located inside the hole, thereby maintaining the fixed state. At this time, the order in which the fixing member (440) is connected may vary depending on the worker's work preference.

[0073] FIGS. 9 and 10 illustrate another embodiment of a coupling bolt (500) applied to the present invention, wherein the coupling bolt (500) is not composed of a cylindrical bolt but is composed of a square bolt and is coupled in a manner that penetrates the disc body (410), outer plate (300), dividing plate (100), and gap plate (200), thereby forming a structure that prevents each component from becoming distorted during use. Of course, the part through which the coupling bolt (500) penetrates must be in the shape of an elongated hole or a square hole, as it must be in contact with the surface of the coupling bolt (500).

[0075] Although the present invention has been described above with reference to the embodiments, it is understood that various modifications are possible within the scope of the technical spirit of the present invention. Explanation of the symbols

[0079] 100 : Dividing plate 200: Gap plate 300 : External panel 400 : Binding device 410 : Disc body 411 : Connection hole 420 : First binding hole 430 : Second binding hole 440 : Fixing member 500 : Connecting bolt

Claims

Claim 1 A wire rope binding structure of a disc drum, wherein a plurality of dividing plates (100) and gap plates (200) are alternately arranged on the inner side to allow a wire rope to be wound, and an outer plate (300) is coupled on the outer side, further comprising a binding device (400) coupled to the outer side of the outer plate (300) to fix the end portion of the wire rope; wherein the binding device (400) comprises: a disc body (410) having a connecting hole (411) formed therein for receiving a wire rope to be fixed in the disc drum; a first binding hole (420) formed through the disc body (410) from the radially inner side to the radially outer side, through which the wire rope received through the connecting hole (411) is primarily coupled; and a position formed at a certain distance from the first binding hole (420), through which the wire rope that has passed through the first binding hole (420) A wire rope binding structure for a disc drum of a stage device, characterized by being formed by a second binding hole (430) inserted secondarily. Claim 2 A wire rope binding structure for a disc drum of a stage device, characterized in that, in the first paragraph, the binding device (400) further comprises a fixing member (440) for fixing a wire rope. Claim 3 A wire rope binding structure for a disc drum of a stage device, characterized in that, in claim 2, the fixing member (440) is screw-coupled to screw holes formed in the first binding hole (420) and the second binding hole (430), respectively, so that the fixing member (440) presses the wire rope inside the first binding hole (420) and the second binding hole (430) to achieve fixation. Claim 4 A wire rope binding structure for a disc drum for a stage device, characterized in that, in the first paragraph, the second binding hole (430) is formed from the radially outer side of the disc body (410) to the radially inner side, but is not formed to penetrate to the position of the connecting hole (411) and has a closed end.

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