JP2000136100A - Elevating/lowering auxiliary device for structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevating/lowering auxiliary device for a structure which does not require exclusive and special equipment on the side of a structure such as a steel tower and is small, light in weight and easy in transportation. SOLUTION: In a steel tower, a rope for mounting safety device is preliminarily extended along the hoistway. An elevating/lowering auxiliary device 1 is engaged to this rope and rises, pulling a worker with a tow rope 6. A main body 2 of the device 1 holds a battery 3 and has a driving roller rotated by a motor 4. A movable frame 7 has a pressing roller which is engaged to the main body 2 so as to be relatively and freely movable and holds the rope 6 opposite to the driving roller. The main body 2 and the movable frame 7 are connected with a torque adjusting bolt, a relative location of the main body 2 and the movable frame 7 is adjusted with this bolt and intervals of the rollers 5 are made variable. A load sensor 12 interposing between the main body 2 and the tow rope 6 supplies power to the driving motor 4 when weight of the worker or load in a prescribed range by tensile force is applied to the tow rope 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ascending and descending assisting device for lifting and lowering a worker in order to reduce a burden on the worker who climbs a structure. The present invention relates to a structure lifting assist device that engages with a rope that has been stretched in advance along a hoistway, and ascends while pulling an operator with a tow rope.

[0002]

2. Description of the Related Art Auxiliary devices for raising and lowering a structure by pulling a worker are conventionally known. In this method, a dedicated rack rail is attached to a building, a pinion of a main body is engaged with the rack rail, and the building is moved up and down by an engine or a motor.

[0003]

The above-mentioned conventional lifting assist device has disadvantages in that the equipment is large and the cost is high, and a dedicated rack rail must be permanently installed in each building. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a small, lightweight, and easy-to-carry construction lifting / lowering auxiliary device that does not require a special facility dedicated to the construction.

[0004]

According to the present invention, in order to solve the above-mentioned problems, a safety device mounting rope 43 previously stretched along a hoistway of a building 41 is engaged with a towing rope 6. The structure elevating and lowering assisting device 1 is configured to ascend while pulling the worker via the. A power supply battery 3 is held by a main body 2 of the apparatus, and a drive roller 5 that is rotated by a battery-driven motor 4 is provided. The movable frame 7 is engaged with the main body 2 so as to be relatively movable, and the movable frame 7 is provided with a pressing roller 9 that faces the drive roller 5 and clamps the rope 43. The main body 2 and the movable frame 7 are connected with a torque adjusting bolt 10 and the torque adjusting bolt 1
At 0, the relative position between the main body 2 and the movable frame 7 is adjusted, and the distance between the drive roller 5 and the pressing roller 9 is made variable. In addition, a load sensor 12 is provided between the main body 2 and the traction rope 6 to supply power to the drive motor 4 when a load of a predetermined range is applied to the traction rope 6.

[0005]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a structure lifting / lowering assisting device, FIG.
FIG. 3 is a rear view of the structure lifting assistance device, FIG. 3 is a side view of the structure lifting assistance device, FIG. 4 is a schematic explanatory view of a load sensor, and FIG.
FIG. 4 is a schematic explanatory view of a use state of the structure lifting / lowering assisting device.

[0006] As shown in FIG.
Is used by engaging the rollers 5 and 9 with a rope 43 for mounting a safety device, which is stretched in advance along a main pillar 42 serving as a hoistway of the structure 41. The structure lifting / lowering assisting device 1 ascends along the rope 43 while pulling the worker via the towing rope 6. The safety device 45 to which the safety device rope 44 of the worker is connected is disposed above the structure elevating and lowering assisting device 1, and is pushed upward by the tip of the safety device support arm 2a extending upward from the main body. Has become. The arm 2a is engaged with a lever 45a for locking the safety device rope 44 of the safety device 45, and moves up and down while supporting this. Safety device 4
5 may be arranged below the building elevating assisting device 1 so as to be lifted by the building elevating assisting device 1 and to descend below it.

In FIG. 1 to FIG. 3, a main body 2 of the structure lifting / lowering assisting device 1 supports a power supply battery 3 and has a driving roller 5 rotated by a motor 4. Tow rope 6
Is connected to the main body 2.

The movable frame 7 is engaged with both edges of the support plate 8 of the main body 2 so as to be relatively movable. The movable frame 7 is provided with a pressing roller 9 so as to sandwich the rope 43 facing the driving roller 5.
Is provided.

The body 2 and the movable frame 7 are connected by a torque adjusting bolt 10. This torque adjusting bolt 10
Thereby, the relative position between the main body 2 and the movable frame 7 is made variable,
Therefore, the distance between the driving roller 5 and the pressing roller 9 is variable.

A torque limiting handle 11 is attached to the torque adjusting bolt 10. The handle 11 is gripped and the torque adjusting bolt 10 is rotated to tighten the rope between the driving roller 5 and the pressing roller 9. When the tightening force reaches a predetermined value, slippage occurs between the handle 11 and the torque adjusting bolt 10. Is to occur. Therefore,
Even if the rollers 5 and 9 are worn by use, a constant rope holding force can always be ensured each time the rollers 5 and 9 are used.

A load sensor 12 is interposed between the main body 2 and the traction rope 6. That is, the load sensor 12 includes a pair of levers 13 and a sliding plate 14 connected to the levers 13.
And a spring 15 interposed between the levers 13, 13. As schematically shown in FIG.
Numerals 4 are arranged so as to overlap with each other, and are attached to the main body 2 so as to be movable left and right so that the overlapping width changes with the rotation of the lever 13. Sliding plates 14, 14
Are contact pieces 1 that are electrically conductive with each other in a predetermined position range.
4 a and 14 b, which are interposed between the power supply battery 3 and the drive motor 4. The tow rope 6 is connected to the lever 13. When the tow rope 6 is pulled or the weight is applied thereto, the lever 13 rotates while stretching the spring 15 to move the sliding plate 14 to the left or right, respectively, to bring the contact pieces 14a, 14b into contact. This load sensor 12
Is a predetermined range (for example, 5 kg to 50 kg) on the towing rope 6.
It operates to supply electric power to the drive motor 4 when the load is applied.

When the motor 4 descends when the power supply is stopped,
It operates in reverse to generate electricity and act as an electromagnetic brake, and the braking force can be selected by selecting the magnitude of the electric resistance provided between the output terminals.

When climbing up to a building using the building up / down assisting device 1, it is first attached to the rope 43. With the torque adjusting bolt 10 loosened to increase the distance between the drive roller 5 and the pressing roller 9, a rope 43 is passed between the rollers 5 and 9, and the torque adjusting bolt 10 is
Then, the rope 43 is tightened between the rollers 5 and 9. The safety device rope 44 and the safety device 45 are used together. Then, when the main switch is turned on and the tow rope 6 is pulled or weight is applied thereto, the lifting assist device 1 starts to ascend. The worker basically climbs the steps by himself, but when the tow rope 6 is put on weight, the structure lifting / lowering assisting device 1 pulls the worker up to reduce the burden on the worker. Structure lifting assistance device 1
Will raise the structure with the worker while repeatedly rising and stopping. During the raising operation, the arm 2a pushes up the lever 45a of the safety device 45, so that the safety device 45 can be raised without resistance. At the time of descending, the power supply is stopped, and the motor 4 is rotated in the reverse direction to act as a brake, and descend while pulling the lifting assist device 1 at an appropriate speed. Ultimate safety against the fall of the worker is ensured by the safety device rope 44 and the safety device 45.

[0014]

As described above, in the present invention, the power source battery 3 is held in the main body 2 of the apparatus, and the driving roller 5 rotated by the battery driven motor 4 is provided. The movable frame 7 is engaged with the main body 2 so as to be relatively movable, and the movable frame 7 is provided with a pressing roller 9 that faces the drive roller 5 and clamps the rope 43. The main body 2 and the movable frame 7 are connected with a torque adjusting bolt 10, the relative position between the main body 2 and the movable frame 7 is adjusted with the torque adjusting bolt 10, and the distance between the driving roller 5 and the pressing roller 9 is variable. And A load sensor 1 is provided between the main body 2 and the tow rope 6.
2 to supply power to the drive motor 4 when a load of a predetermined range is applied to the traction rope 6. With the above-described configuration, it is possible to provide the structure lifting / lowering auxiliary device 1 which is small, lightweight, and easy to transport without requiring special facilities on the side of the structure.

[Brief description of the drawings]

FIG. 1 is a front view of a structure lifting / lowering assisting device.

FIG. 2 is a rear view of the structure lifting assistance device.

FIG. 3 is a side view of the structure lifting assistance device.

FIG. 4 is a schematic explanatory diagram of a load sensor.

FIG. 5 is a schematic explanatory view of a use state of the building elevating assistance device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Construction lifting assistance apparatus 2 Main body 2a Safety device support arm 3 Battery 4 Motor 5 Drive roller 6 Tow rope 7 Movable frame 8 Support plate 9 Press roller 10 Torque adjustment bolt 11 Handle 12 Load sensor 13 Lever 14 Sliding plate 14a Contact piece 14b Contact piece 15 Spring 41 Structure 42 Main pillar (hoistway) 43 Rope for attaching safety device 44 Safety device rope 45 Safety device 45a Lever

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masao Uechi 3-2-2, Nakanoshima, Kita-ku, Osaka City Inside Kansai Electric Power Company (72) Inventor Kazuo Yamagata 3-2-2, Nakanoshima, Kita-ku, Osaka City Kansai Electric Power Co., Inc. (72) Inventor Osamu Kiuchi Osamu 3-2-2, Nakanoshima, Kita-ku, Osaka City Kansai Electric Power Co., Inc. (72) Takahito Kashiwagi 3-2-2, Nakanoshima, Kita-ku, Osaka (72) Inventor Eiji Marui 3-2-2, Nakanoshima, Kita-ku, Osaka-shi Kansai Electric Power Co., Inc. (72) Inventor Hirohisa 3-2-2, Nakanoshima, Kita-ku, Osaka Kansai Electric Power Within the company (72) Inventor Naoki Yamanaka 3-2-2 Nakanoshima, Kita-ku, Osaka-shi Inside Kansai Electric Power Co., Inc. (72) Inventor Isamu 3-2-2, Nakanoshima, Kita-ku, Osaka-shi Kansai Electric Power Co. (72) Inventor Yuji Tobe 3-2-2, Nakanoshima, Kita-ku, Osaka-shi Kansai Electric Power Co., Inc. (72) Inventor Tetsuo Shota 3-2-2, Nakanoshima, Kita-ku, Osaka Kansai Electric Power Co., Ltd. 72) Inventor Tadayuki Enomoto 3-2-2 Nakanoshima, Kita-ku, Osaka-shi Kansai Electric Power Co., Inc. (72) Inventor ▲ Kaku ▼ Fumio 3-2-2 Nakanoshima, Kita-ku, Osaka-shi Kansai Electric Power Co. (72) Inventor Hiroaki Ueno 6-5-19 Minamishinagawa, Shinagawa-ku, Tokyo Sanwa Tekki Co., Ltd. (72) Inventor Kosuke Sato 6-5-19 Minamishinagawa, Shinagawa-ku, Tokyo Sanwa Tekki Co., Ltd. (72) Inventor Kiyoshi Nishio 18-21 Chayacho, Kita-ku, Osaka-shi Sanwa Tecchi Co., Ltd. Osaka Branch (72) Inventor Takashi Moriyama 2-3-3 Uozaki-Nishicho, Higashinada-ku, Kobe Co. F term (reference) 2E044 AA07 BB06 CB02 EE15 2E184 BB01 JA04 KA01 KA06 LA03 LA17 MA02

Claims (2)

[Claims] 1. A structure elevating and lowering assisting device which is engaged with a rope for mounting a safety device which is stretched in advance along a hoistway of the structure and which ascends while pulling an operator through a tow rope, comprising: A movable body having a driving roller that holds a battery and is rotated by a battery-driven motor; and a pressing roller that is engaged with the main body so as to be relatively movable and that sandwiches the rope in opposition to the driving roller. A frame, a torque adjusting bolt connecting between the main body and the movable frame to adjust a relative position between the main body and the movable frame so as to adjust a distance between the drive roller and the pressing roller, and the main body. A load sensor interposed between the traction rope and the traction rope, and operable to supply power to the drive motor when a load of a predetermined range is applied to the traction rope. Auxiliary equipment. 2. A safety device support arm is provided to extend upward from the main body, and a tip end of the arm is engaged with a lever for locking a safety device rope of the safety device, and the safety device is mounted. The structure lifting / lowering assist device according to claim 1, wherein the safety device is configured to ascend and descend while supporting the safety device with the safety device support arm on the rope for use.