JPS603723B2 - Wire for lighting equipment lifting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wire used in a lighting odor elevating device installed in a stage or studio.

Conventional lighting elevating equipment installed in stages and studios uses a round wire formed of a flaming wire with a diameter of about 5 to 6 skins, and this round wire is wound up with a winding drum or By lowering the wire, the lamp installed at the lower end of the round wire was raised and lowered. However, in this lifting device, since the diameter of the round wire is large, if the diameter of the winding drum is made smaller, the amount of bending of the steel wire that forms the round wire will increase, and the round wire will become fatigued due to repeated stress. Since there is a cap that cuts the winding drum, the diameter of the winding drum is usually set to 40 mm.
Since the number of legs is set to about 0, the winding drum becomes large and there is a drawback that the entire lifting device cannot be downsized. In addition, in this subordinate lifting device, the round wire is wound and arranged in parallel on the winding drum, so the width of the winding drum becomes large, and there is a drawback that the entire lifting device cannot be made smaller. did. On the other hand, if a flat steel strip is used for the wire of the lifting device, the wires can be hoisted in layers, making it possible to reduce the width of the hoisting drum.However, unless the diameter of the hoisting drum is increased, the flat steel strip will repeat It has the disadvantage that it easily breaks due to fatigue due to stress.

Therefore, in order to eliminate the drawbacks of the wires used in the conventional lifting device of lighting equipment, the present invention uses a stranded wire formed by twisting a plurality of pongee wires, and a plurality of stranded wires that are closely connected in parallel. Adjacent stranded wires are arranged in different directions, and this stranded wire is a core wire formed by twisting a plurality of pongee wires, and the stranded wires are sequentially positioned vertically and folded above the frame. The sheet was formed by folding it at the end, placing the flaming lines one after the other in the opposite direction to the above-mentioned folding, folding it upwards, then bending it at the end, and then making the same folds in sequence. It was formed as a wire for a lighting odor lifting device.

For this reason, the wire for the lighting odor elevating device of the present invention can be rolled up on a winding drum in the same way as when a flat steel strip is used, so the width of the winding drum can be made smaller. became possible.

Furthermore, since the wire of the present invention is made of stranded thin wire, even if the diameter of the winding drum is reduced, the wire will not easily break due to fatigue due to repeated stress applied to the wire. In order to understand the present invention, an embodiment in which the wire of the present invention is applied to a lifting device for lighting eyes will be described based on the drawings. First of all, lighting light 101
The suspension mechanism 10 will be described based on FIGS. 3 to 6. A cylindrical first suspension pipe 102 is fixed to a cart 401 with its substantially central portion fixed vertically. Stoppers 103 , 103 are disposed on the inner periphery of the lower end of the pipe 102 to face each other, and a pulley cover 104 is fixedly installed on the upper end of the first hanging pipe 102 .
A fixed shaft 105 is installed approximately in the center of the fixed plate 1.
Two pulleys 106 and 107 are rotatably disposed at the corners of the pulley 05.

A second hanging pipe 1 is provided inside the first hanging pipe 102.
08 is slidably disposed, and on both sides of the second hanging pipe 108 in the axial direction there are opposing parallel flat parts 108a,
A stopper 10 is provided on the outer periphery of the upper end of the second hanging pipe 108 at the position of the flat parts 108a and 108b.
9,109 are arranged, and furthermore, this second hanging pipe 108
Stoppers 110, 110 are disposed on the inner periphery of the lower end at the positions of the flat parts 108a, 108b. and the second
A third hanging pipe 111 is slidably disposed inside the hanging pipe 108, and parallel flat portions 111a and 111b are disposed opposite to each other on both sides of the third hanging pipe 111 in the feed direction. , a flat part 111a on the outer periphery of the upper end of this third hanging pipe 111
, 111b are fixed to the positions of the stoppers 112, 112, and the flat part 111 on the inner periphery of the lower end of the third hanging pipe 111
Stoppers 113, 113 are fixed at positions a and 111b. And inside the third hanging pipe 111 there is a fourth
A hanging pipe 114 is slidably arranged, and this fourth hanging pipe 1
Opposite and parallel flat parts 1 are provided on both sides in the direction of the ball of 14.
14a, 114b are arranged, and stoppers 115, 115 are fixedly installed at the positions of the flat parts 114a, 114b on the outer periphery of the upper end of the fourth hanging pipe 114.
Stoppers 116, 116 are fixedly provided at the positions of the flat portions 114a, 114b on the inner periphery of the lower end. A fifth hanging pipe 117 is slidably disposed inside the fourth hanging pipe 114, and parallel flat portions 117a and 117b are provided on both sides of the fifth hanging pipe 117 in the direction of rotation. arranged,
Flat portion 117a, 1 on the outer periphery of the upper end of this fifth hanging pipe 117
Stoppers 118, 118 are installed at the position 17b, and flat parts 117a, 118 on the inner periphery of the lower end of the fifth hanging pipe 117,
Stoppers 119, 119 are fixed at the position 117b. A substantially quadrangular column-shaped sixth hanging pipe 120 is slidably disposed inside the fifth hanging pipe 117.
Opposite sides 120a, 1 of the upper end outer periphery of the hanging pipe 120
Stoppers 121, 121 are interposed at the position 20b, and a flange 122 having the same diameter as the first hanging pipe 102 is fixed at the lower end of the sixth hanging pipe 120. The lower end portions of the pipes 102 to the fifth hanging pipe 117 are supported accordingly. A pin 123 is installed inside the lower end of the sixth hanging pipe 120, and flat wires 124 and 125 arranged at intervals are connected to this pin 123. The upper part of these flat wires 124, 125 is connected to the first hanging pipe 10.
The bag is wrapped around pulleys 106 and 107 disposed at the upper end of the first hanging pipe 102, and then wound around the upper part of the first hanging pipe 102 by a winding device. Also, an illumination light 1 is provided at the lower end of the sixth hanging pipe 120.
26 are arranged. Next, to describe the function of this suspension mechanism 100, first of all, the flat wires 124, 125
When it is hoisted up, the hanging mechanism 10 and the first hanging pipe 1
02 and is at its shortest, the illumination light 126 is located at a high location. Next, the flat wire 124,1
25 starts lowering, the sixth hanging pipe 120 descends, and when the sixth hanging pipe 120 descends, the sixth hanging pipe 12
The second hanging pipe 10 whose lower end portion is attached to the flange 102 of 0
The 8th to 5th hanging pipes 117 descend together. Next, a stopper 103 disposed on the inner periphery of the lower end of the first hanging pipe 102,
Stoppers 109, 109 disposed on the outer periphery of the upper end of the second hanging pipe 108 are engaged with the stoppers 103, and the descent of the second hanging pipe 108 is stopped. When the flat wires 124 and 125 are further lowered, the stoppers 110 and 110 provided on the inner periphery of the lower end of the second hanging pipe 108 engage the stoppers 112 and 112 arranged on the outer periphery of the upper end of the third hanging pipe 111. stop and third
The hanging pipe 111 stops descending. 3 Hanging pipes 1
Stoppers 113, 113 arranged on the inner periphery of the lower end of 11
Stoppers 115, 115 arranged on the outer periphery of the upper end of the fourth hanging pipe 114 are engaged, and the upper end of the fifth hanging pipe 117 is engaged with stoppers 116, 116 arranged on the inner periphery of the lower end of the fourth hanging pipe 114. Stopper 118,1 arranged on the outer periphery
18 is locked, and stoppers 119, 119 placed on the inner periphery of the lower end of the fifth hanging pipe 117 are locked with stoppers 121, 121 placed on the outer periphery of the upper end of the sixth hanging pipe 120, thereby creating a hanging mechanism. 100 is the longest state. On the other hand, when the flat wires 124 and 125 begin to be wound up, the lower end of the fifth hanging pipe 117 is first sent to the collar 122 of the sixth hanging pipe 120, and then this fifth hanging pipe 117 is transferred to the sixth hanging pipe. The lower end of the fourth hanging pipe 114 is connected to the collar 122 of the sixth hanging pipe 120, and the second hanging pipe 120 rises together with the sixth hanging pipe 120. Each lower end up to the hanging pipe 108 is the collar part 12 of the sixth hanging pipe 120.
2 and rises together with the sixth hanging pipe 120, and finally when the collar 122 of the sixth hanging pipe 120 comes into contact with the lower end of the first hanging pipe 102, the winding of the flat wires 124, 125 is stopped. Ru.

Further, in this hanging mechanism 100, stoppers 103, 103 disposed on the first hanging pipe 102 engage with the flat parts 108a, 108b of the second hanging pipe 108, thereby preventing rotation of the second hanging pipe 108, In addition, stoppers 110, 110 arranged on the inner periphery of the lower end of the second hanging pipe 108 are connected to the third hanging pipe 11.
The stoppers 112, 1 engage with the flat parts 111a, 111b of the third hanging pipe 111, and are disposed on the outer periphery of the upper end of the third hanging pipe 111.
12 engages with the inner periphery of the flat portions 108a, 108b of the second hanging pipe 108, thereby preventing the third hanging pipe 111 from rotating.
Further, the stoppers 1 13, 1 13 disposed on the inner periphery of the lower end of the third hanging pipe 1 1 1 engage with the flat parts 114a, 114b of the fourth hanging pipe 114, and the fourth hanging pipe 114
Stoppers 115, 115 disposed on the outer periphery of the upper end engage with the inner periphery of the flat portions 111a, 111b of the third hanging pipe 111, thereby preventing the fourth hanging pipe 114 from rotating. Furthermore, the stoppers 116, 116 disposed on the inner periphery of the lower end of the fourth hanging pipe 114 are connected to the flat part 117a of the fifth hanging pipe 117,
117b, and stoppers 118, 118 disposed on the outer periphery of the upper end of the fifth hanging pipe 117 engage with the flat parts 114a, 114b of the fourth hanging pipe 114 to prevent rotation. The stopper I19, 119 disposed on the inner periphery of the lower end of the fifth hanging pipe 117 is connected to the side part 1 of the sixth hanging pipe 120.
Stoppers 121, 121, which are engaged with 20a, 120b and arranged on the outer periphery of the upper end of the sixth hanging pipe 120, prevent the flat parts 117a, 117b of the fifth hanging pipe 117 from rotating. Therefore, the hanging mechanism 100 expands and contracts in the vertical direction but does not rotate around the axial direction, so the direction of the illumination light 126 fixed to the lower end of the sixth hanging pipe 120 cannot be changed unless operated. do not have. Next, the disturbance mechanism 200 that drives the hanging mechanism 100 will be described based on FIGS. A reducer 202 made of a known mechanism is installed on the side of the reducer 201, and an output shaft 203 of the reducer 202 is arranged to protrude inside the case 201 of the drive mechanism, and an input shaft of the reducer 202 (not shown) is arranged at the lower part of the reducer 202, and this input shaft is connected via a friction clutch to the output shaft (not shown) of a motor 204 fixedly installed at the lower part of the reducer 202. There is.

A flat wire 124 is connected to the output shaft 203 of the reducer 202.
, 125 are fixedly spaced apart from each other, and pins 20 to which ends of the flat wires 124, 125 are connected and fixed are attached to the bases of the winding frames 204, 205.
6 are arranged. A ratchet gear 207 is fixed to the output shaft 203 inside the winding frames 204 and 205, and a sprocket 208 is fixed to the output shaft 203 outside the winding frames 204 and 205. A drive mechanism case 20 is provided on the top of the winding frames 204 and 205.
Support plates 209, 210, 211 are vertically suspended from the upper hair styling surface of 1, and long holes 212, 213 are perpendicularly perpendicular to the support plates 209, 210' at the same positions.
12 and 213, a pin 214 is arranged to be able to slide freely in the vertical direction, and a first sensing roller 215 is rotatably disposed on this pin 214. This flat wire 124 is connected to a pin 123 disposed inside the lower end of the first suspension pipe 102 via a pulley 106 disposed at the upper end of the first suspension pipe 102. has been done. Therefore, the load of the hanging mechanism 100 is always applied to the flat wire 124, so the first sensing roller 215 is pressed upward by the tension of the flat wire 124. A connecting lever 216 is rotatably disposed on the outer end of the pin, and a mitt switch 234 is disposed on the outer surface of the support plate 209 to detect vertical movement of the outer end of the pin 214. ing. On the other hand, the right end of the swing lever 217 is rotatably disposed on the inner wall of the drive mechanism case 201 with a pin 226, and the left end is supported downward by a spring 218.
17, the lower end of the connecting lever 216 is connected to the pin 21.
It is rotatably connected at 9. Also, the swing lever 21
The upper end of a connecting rod 227 is rotatably disposed at the left end of the case 201, and the lower end of this connecting rod 227 is rotatably connected to the left end of a rotary lever 228 disposed at the bottom of the case 201. The lever 228 is attached to the pin 22 at the center position.
The right end of the swing lever 228 is attached to the swing lever 23, and the right end of the swing lever 230 is fixed to the case 201 in a swingable manner. A ratchet tooth profile 231 is disposed approximately in the center of the swing lever 230, and the ratchet tooth profile 231 engages with the ratchet gear 207 when the lever bar 230 swings. , forming a ratchet. Further, long holes 221, 222 are perpendicularly perforated in the support plates 210, 211 at positions eccentric from the outermost hole 213, and pins 223 are disposed in the long holes 221, 222 so as to be slidable in the vertical direction. A second sensing roller 224 is rotatably disposed on this pin 223.
24 is engaged with a flat wire 125 from a winding frame 205, and this flat wire 125 is arranged inside the lower end of the first hanging pipe 102 via a pulley 107 arranged at the upper end of the first hanging pipe 102. It is connected to the provided pin 123.

Therefore, the load of the hanging mechanism 100 is always applied to the flat wire 125, so the second sensing roller 224 is pressed upward by the tension of the flat wire 125. Also pin 22
A connecting lever 236 is rotatably disposed at the outer end of the pin 223, and a mitt switch 235 is disposed on the outer surface of the support plate 211 to detect vertical movement of the outer end of the pin 223. . On the other hand, the swing lever 225 is connected to a pin 225 that rotatably supports the swing lever 217 disposed on the same layer.
Similarly, the connection lever 23 is arranged to be swingable at 6.
The lower end of the swing lever 225 is connected to a substantially intermediate position of the swing lever 225. Further, a ratchet tooth profile 220 is disposed on the lower center surface of the swing lever 225, and the ratchet tooth profile 220
'A ratchet is formed with the ratchet gear 207. Further, a spring 233 is disposed at the left end of the swing lever 225 to elastically support the swing lever 225 downward. Next, the operation of this drive mechanism 200 will be described.
Since the load of the hanging mechanism 100 is always applied to the wires 24 and 125, tension is generated in the flat wires 124 and 125, and this tension presses the first sensing roller 215 and the second sensing roller 224 upward. , for that purpose the sensing roller 215
, 224 pins 214, 223 are springs 218, 2
The elongated holes 212, 213, 221, 22 resist the tension of 33.
Located at the top of 2.

When this pin 223 is positioned above the elongated holes 221 and 222, the swing lever 225 also rotates upward against the elasticity of the spring 233 by the connecting lever 224 connected to this pin 223. The ratchet tooth profile 220 disposed on the lower surface of the swing lever 225 is spaced apart from the ratchet gear 207, so that the ratchet mechanism 207, 2
20 does not operate, the output shaft 203 of the reducer 202 can freely rotate. Also, while using this device, the flat wire 12
5 is cut, or the lighting light 126 comes into contact with another device while the hanging mechanism 100 is descending, and the lighting light 12
6 cannot be lowered, the second sensing roller 22
Since no push-up force is applied to the second sensing roller 22
4 moves downward, and as a result, the connecting lever 236 connected to the pin 223 pushes down the swinging lever 225, so that the swinging lever 225 is rotated downward and is attached to the swinging lever 225. The ratchet tooth profile 220 meshes with the ratchet gear 207 to stop the rotation of the output shaft 203 of the reducer 202. At the same time, the limit switch 235 senses the state in which the pin 223 is lowered and controls the power supply of the motor 204. Also, the pin 21 of the second sensing roller 215
4 is located above the elongated holes 212, 213 of the support plates 209, 210, the connecting bar connected to this pin 214
At 216, the swinging lever 217 is rotated upward, and for this purpose, a connecting rod 227 connected to the tip of the swinging lever 217 is inserted.
moves upward, and the rotating lever 228 connected to this connecting rod 227 rotates clockwise, causing the swinging lever 230 to rotate downward.

This swinging lever 23 has a ratchet tooth profile 23
1 is spaced apart from the ratchet gear 207, and the ratchet mechanism does not work. However, if the flat wire 124 breaks during use of this device, or if the illumination light 126 comes into contact with another device while the hanging mechanism 100 is lowered, the tension of the flat wire 124 will be applied to the first sensing roll 215. As a result, the first sensing roll 215 moves downward, and as a result, the connecting lever 216 connected to the pin 214 moves to the swinging lever 2.
17 is rotated downward, the connecting rod 227 connected to the tip of this swinging lever 217 is pushed down, the rotating lever 228 connected to this connecting rod 227 is rotated to the left, and the swinging lever 230 is rotated downward. rotate upward. The ratchet tooth profile 231 disposed on the swing lever 230 engages with the ratchet gear 207, and the output shaft 200 of the reducer 202
Stop the rotation of step 3. At the same time, the limit switch 234 detects the state in which the pin 214 is lowered and controls the power supply of the motor 24 to be opened. Next, the stop mechanism 300 of the drive mechanism 200
8 and 9, there is a support plate 300 on the right inside of the upper wall of the case 201 of the drive mechanism 100.
, 305 are spaced apart from each other, and the supporting plates 304, 30
5, a rotary shaft 303 is rotatably disposed, a collar 312 is disposed at one end of the rotary shaft 303, and a sprocket 302 is disposed at the other end.
A male screw 311 is disposed in the central portion of 3.

This male screw 311 has a slider 30 provided with a male screw.
9 are arranged in a series, and this slider 309 has a concave groove 3.
10 is arranged, and this concave groove 31 is connected to support plates 304, 3.
An end portion of a fixed plate 308 installed between the fixed plates 308 and 308 is inserted so as to be non-rotatable. Further, limit switches 306 and 307 are provided inside the support plates 304 and 305, respectively, to sense the state in which the slider 309 approaches. The sprocket 302 disposed on the rotating shaft 303 has a sprocket 2 disposed on the output shaft 203 of the reducer 202.
08 by a chain 313. Next, the operation of this stop mechanism 300 will be described. First, while the suspension mechanism 100 is rising, the output shaft 203 of the reducer 202 is rotated by the sprockets 208, 302 and the chain 313, which rotates the rotating shaft 303. As the rotating shaft 303 rotates, the slider 309 moves forward.

Then, with the sixth hanging pipe 120 of the hanging mechanism 100 completely housed in the first hanging pipe 102, the slider 309 presses one limit switch 307, and the drive mechanism 200
stop the operation. On the other hand, when the suspension mechanism 100 descends, the output shaft 203 of the reducer 202 rotates in the opposite direction, so the slider 309 retreats as the rotation shaft 303 rotates. When the suspension mechanism 100 is fully extended, the slider 309 presses the other limit switch 306 to stop the operation of the drive mechanism 200. Next, the traveling mechanism 401' will be described based on FIGS. 12, 10, and 11. The cart 401 has side parts 403 and 404 erected on both sides of the top part 402, and is arranged in parallel. A front part 405 is erected at the tip, and a rear part 406 is erected.

Further, a boss portion 407 is erected in the center of the truck 401, and the first hanging pipe 10 of the hanging mechanism 100 is attached to the boss portions 40, 7.
The approximate center of 2 is fixed vertically. Furthermore, trolley 401
A recess 408 is located at the tip of the side surface 403 of the side surface 40.
Recess walls 409 and 410 are provided spaced apart from each other in the recess 408, and a recess bottom wall 411 is provided at the back of the recess 408. A first fixed shaft 412 is installed behind the side surfaces 403 and 404 of the trolley 401.
First wheels 413 and 414 are rotatably disposed at a distance from each other on 12, and collar portions 415 and 416 are disposed on the first wheels 413 and 414 to face each other. Further, a second fixed ball 417 is provided in a corner ahead of the first fixed shaft 412 on the side surface 4.
03, 404, and second wheels 418, 419 are rotatably disposed at a distance on this second fixed shaft 417.
0,421 are arranged. Furthermore, a third fixed shaft 42 is attached to the bottom wall 411 of the recess and the side surface 404 at the front of the cart 401.
2 is constructed, and a third wheel 42 is mounted on this third fixed shaft 422.
3 is rotatably disposed, and a flange portion 424 is disposed on this third wheel 423. Furthermore, the third fixed shaft 422
A fourth fixed shaft 425 is located between the side parts 403 and 404.
is constructed, and a fourth wheel 426 is mounted on this fourth fixed shaft 425.
, 427 are rotatably arranged at intervals. Next, the operation of the traveling mechanism 400 will be described. The trolley 401 is pushed and moved by lighting personnel located on the upper surfaces of the floor sections 4, 4', 5, 5', 6, 6'.

The first wheels 413, 414 to the fourth wheels 426, 427 arranged on this trolley 401 are arranged on the floor 4 which is spaced apart from each other.
, 4', 5, 5', 6, 6', and the flange of each wheel engages with the ends of the floors 4, 4', 5, 5', 6, 6'. , the cart 401 moves linearly through the gaps 4b, 5b, 6b formed by the floors 4, 4r, 5, 5', 6, 6'.
This truck 401 has gaps 4a, 4a, and 4a, which intersect at right angles to the gaps 4b, 5b, 6b of the floors 4, 4', 5, 5', 6, 6'.
When passing through parts 5a and 6a, the first wheels 413 and 41
When any one of the fourth to fourth wheels 426, 427 is located in the gap 4a, 5a, 6a, the other three wheels support the trolley 401, so that the running of the trolley 401 is not hindered.

Next, to describe the direction change mechanism 50 of the truck 401, through holes 501 and 502 are bored at opposing positions in the center of the side parts 403 and 404 of the truck 401.
, 502 are rotatably provided with pins 503, 504, and both ends of a substantially U-shaped arm 505 surrounding the cart 401 are fixed to the outer ends of the pins 503, 504. At the inner end of 504 is a swing lever 506,
507 is disposed, and bearings 508 and 509 are disposed rotatably opposite to each other inside the tips of the swinging levers 506 and 507, and further swing to move the bars 506 and 507 and the side portion 403 of the trolley 401. , 404, and the coil springs 510, 511 rotate the swing levers 506, 507 up and down, and simultaneously rotate the arm 505 upward.

And the first hanging pipe 102 fixed in the center of the trolley 401
A slider 512 is disposed in an iron-coupled manner inside the cart 401, and this slider 512 has a cylindrical portion 512a movably disposed on the first hanging pipe 102, and flanges at both ends of the cylindrical portion 512a. 512b and 512c are provided. Between the flanges 512b and 512c of this slider 512 are bearings 508 and 50 disposed on swing levers 506 and 507.
9 is iron-coupled. Further, a foot plate 513 is arranged in the center of the arm 505, and this foot plate 513 is rotatably arranged on the arm 505 with U-shaped fasteners 514 and 515 fixed on the back side, and is also fixed on the arm 505. pin 514
is fixed, and the locking part 5 is arranged at the tip of the foot plate 513.
13a is in contact with the foot tread plate 513 in a horizontal state, and a leaf spring 516 is disposed between the back surface of the foot tread plate 513 and the stop pin 514, so that the foot tread plate 513 is always attached to the stop pin 514 by the locking portion 513a. It is held so that it makes contact. When this foot tread 513 is stepped on by a foot, it is rotated to the right against the elasticity of the leaf spring 516, and when the foot is released when the arm 505 is in a substantially horizontal position, the foot tread 513 is rotated to the left and its tip is rotated to the right. Trolley 4
It is arranged so that it is latched and fixed to a protrusion 406a of the rear surface part 406 of 01. Further, a pin 420 is rotatably disposed perpendicular to the upper surface portion 402 near the center of the recessed portion 408 of the trolley 401, and a lever bar 421 is attached to the upper end of this pin 420.
is fixedly installed, and a cylindrical body 422 is vertically connected to the tip of this lever 421, and a wiring 14 to an illumination light 126 disposed at the lower end of the hanging mechanism 100 is connected to this cylindrical body 422. There is.

This lever 41 is connected to a pin 4 arranged inside the cart 401.
A coil spring is disposed between the lower end of the carriage 20 and the carriage 401 so that the carriage 408 is always located at the back of the recess 408. Next, to describe the action of this direction changing mechanism 500, it pushes the cart 401 to move the gap 4b to the left, and at the intersection of the gaps 4'a, 4a which are orthogonal to the gaps 4b, 5b, If you change direction to
At the intersection, the user steps on the footboard 513 of the arm 505 to make the arm 505 substantially horizontal, and the tip of the footboard 513 is engaged with the protrusion 406a of the cart 401 to be fixed. arm 50
5 is arranged approximately horizontally, the swing levers 506, 507
rotates downward, so these swing levers 506, 507
The bearings 508, 509 disposed in the bearings 508, 509 also move downward, and when the bearings 508, 509 move downward, the sliders 512 of the bearings 508, 509 also move downward, and when the sliders 512 move downward, The lower flange 512c of the slider 512 is attached to the floors 4, 4', 5
, 5' and push up the cart 401. Each wheel of the cart 401 pushed up by the lower flange 512c of the slider 512 is removed from the gap in the floor, so that it can rotate horizontally around the slider 512. In this state, when the trolley 401 is directed toward the gap 4'a and the foot plate 513 is stepped on to release the locked state, the arm 505 is rotated upward and the slider 512 is moved toward the first hanging pipe 1.
02, so that the truck 401 is lowered to the floor, and the flanges of each wheel are engaged with the edges of the gaps 4'a, thereby changing the direction of the truck 401. At this time, the cylindrical body 422 in which the wiring 14 is inserted remains locked in the gap 5b of the floor, and as the truck 401 moves toward the gap 4'a, the cylindrical body 422 gradually moves into the recess 408 of the truck 401.
The carriage 401 is accommodated in
It also moves within the gap 4'a. Next, the flat wires 124 and 125 used in the hanging mechanism 100 and the drive mechanism 200
To describe the structure based on FIGS. 16 and 17, ten stranded wires 601 to 610 are arranged closely in parallel, and each of these stranded wires 601 to 610 is made by twisting seven pongee wires. The twisted wires 601 to 610 are arranged so that the twisting direction thereof is parallel to each other, but the twisting direction is different from one strand to the next.

That is, twisted wires 601, 603, 605, 607, 609
are twisted in the right direction, and the twisted wires 602, 604, 6
06, 608, and 610 are twisted to the left. The core wires 611 are woven in the horizontal direction of each of the stranded wires 601 to 6101 arranged in parallel, and the flat wires 124, 1
25 is formed. This core wire 611 is formed by twisting seven thin wires in the right direction, and the right inclined portion 61 1a of the core wire 611 is formed by twisting seven thin wires in the right direction.
The strands 601, 603, 605, 607, 609 are located at the top, and the strands 602, 604, 606, 608, 61
Cut the parallel lines 601 to 610 so that 0 is located at the bottom, and the right bent part 611 where grain is distributed at the right end.
The direction is changed to the left at b, and a left side cuff 611c is provided, and the stranded wires 602, 604 are disposed in this left side cuff 611c.
, 606, 608, 610 are layered on top, and the twisted wire 601
, 603, 605, 607, and 609 are located in the lower part, and crosses the twisted wires 601 to 610 arranged in parallel, and changes direction to the right at the left bending part 611d arranged at the left end. Thereafter, in order, the right oblique part 611a, the right bent part 611b, the left forehead oblique part 611c, and the left bent part 611 of the core line 611
d, and each stranded wire 601 to 610' core wire 611 is woven into the flat wire 124, 125.

[Brief explanation of drawings]

Figure 1 is a longitudinal sectional view of the studio where the lighting odor hanging device is installed, Figure 2 is a plan view of the lighting floor, Figure 3 is an overall side view of the lighting equipment hanging device, and Figure 4 is the lighting FIG. 5 is a partial vertical cross-sectional view of the hanging mechanism, FIG. 6 is a cross-sectional view of the hanging mechanism, FIG. 7 is a vertical cross-sectional view of the drive mechanism from the front direction, and FIG. The figure is a vertical cross-sectional view of the drive mechanism from the side direction.
The figure is a cross-sectional view of the drive mechanism, FIG. 10 is a vertical cross-sectional view of the traveling mechanism, and FIG. 11 is a cross-sectional view of the traveling mechanism and the turning mechanism.
Fig. 12 is a longitudinal sectional view of the slider portion of the direction change mechanism, Fig. 13 is a back view of the foot plate of the direction change mechanism, and Fig. 14 is a cylindrical body in which the wiring for the illumination light of the direction change mechanism is arranged. Fig. 15 is a plan view of the illumination floor to explain the action of the turning f-making mechanism, Fig. 16 is a partially enlarged plan view of the flat wire, and Fig. 17 is a partial plan view of the flat wire. FIG. 3 is an enlarged side view. (SoG-/(NGG2 (NGG3 64 strokes)) (Seo G/30,000,76/Yuko G Bari, 1,76/6 〃G/7

Claims (1)

[Claims] 1 A stranded wire formed by twisting a plurality of thin wires, a plurality of these stranded wires are arranged closely in parallel, the twisting directions of adjacent strands are different, and the stranded wires are formed by twisting a plurality of thin wires. Using a core wire formed by twisting, the stranded wires are sequentially positioned vertically, tilted and folded upward, bent at the ends, and the stranded wires are sequentially positioned vertically and tilted in the opposite direction to the folding. A wire for a lighting equipment lifting device, which is formed by folding it upward, bending it at the end, and then repeating the same folding process.