JP7033993B2 - Heavy load transport method using a hoist - Google Patents

Description

The present invention relates to a method for transporting a heavy object using a hoist, which transports a heavy object using an existing hoist installed in an elevator device.

Conventionally, in elevator repair work, heavy objects such as hoisting machines and control panels may be carried in and out of the machine room. Elevators installed in old buildings often have a machine room above the top floor where the car can land. When renovation work is carried out in such a building, heavy objects are carried in and out using stairs between the top floor and the machine room.

For example, in the case of a hoist, a small one weighs about 300 kg, and a large one weighs up to 800 kg. Therefore, it is impossible to manually support the hoist and move up and down the stairs.

Therefore, as a method of transporting heavy objects on the stairs, a gate-shaped structure is installed above and below the stairs, a rail connecting the tops of the two gate-shaped structures is installed, and a chain block is provided on the rail. A trolley is attached, a heavy object is lifted by a chain block, and the trolley is run along a rail to transport the heavy object from the bottom to the top of the stairs (see, for example, Patent Document 1). ).

Japanese Unexamined Patent Publication No. 2015-101440

However, in the transport method of Patent Document 1, after moving a heavy object by several steps from the lower gantry structure to the upper gantry structure, the trolley is once removed from the rail, and the operator can perform each gate. The mold structure has been relocated several steps upward. Then, the procedure of attaching the trolley to the rail again and moving the heavy object by several steps is repeated. Therefore, in order to transport a heavy object for the first floor, it is necessary to repeatedly attach / detach the trolley and relocate each gate-shaped structure, which causes a problem that a large number of work man-hours are required.

The present invention has been made to solve the above-mentioned problems, and is a hoisting machine capable of easily transporting a heavy object with a simple configuration between the machine room and the downstairs of the machine room. To obtain a method for transporting a heavy object using the above.

In the method for transporting a heavy object using the hoisting machine according to the present invention, the weight is carried by using the hoisting machine along a path connecting the machine room in which the existing hoisting machine is arranged and a place lower than the machine room. A method for transporting an object, the first step of removing the main rope from the hoisting machine, the second step of fixing one end side of the transporting wire to the rotating body of the hoisting machine, and the other of the transporting wire. The third step of attaching the end side to the suspending member of the heavy object and the fourth step of rotating the rotating body and winding or rewinding the transport wire around the rotating body to transport the heavy object. Be prepared.

In the method for transporting heavy objects using the hoisting machine of the present invention, heavy objects are transported by using the existing hoisting machine as a lifting device. As a result, heavy objects can be easily transported with a simple configuration. Therefore, the man-hours for transport work are reduced.

It is the schematic which looked at the front view of the example of the building to which the heavy object transport method using the hoist of this invention is applied. It is a schematic diagram explaining the method of transporting a heavy object using the hoist according to Embodiment 1 of this invention in the building of FIG. It is a schematic diagram explaining the method of transporting a heavy object using the hoist according to Embodiment 2 of this invention in the building of FIG. It is a schematic diagram explaining the method of transporting a heavy object using the hoist according to Embodiment 3 of this invention in the building of FIG. It is a schematic diagram explaining the method of transporting a heavy object using the hoist according to Embodiment 4 of this invention in the building of FIG. It is the schematic which looked at the example of another building which applies the heavy object transport method using the hoist of this invention from the front. It is a schematic plan view explaining the structure in the case of carrying out the 1st process of the heavy goods transport method using the hoist according to Embodiment 2 of this invention in the building of FIG. FIG. 3 is a schematic plan view illustrating a procedure for carrying out the first step of the method for transporting heavy objects using a hoist according to the second embodiment of the present invention in the building of FIG. FIG. 3 is a schematic plan view illustrating a procedure for carrying out the first step of the method for transporting heavy objects using a hoist according to the second embodiment of the present invention in the building of FIG. FIG. 3 is a schematic plan view illustrating a procedure for carrying out the first step of the method for transporting heavy objects using a hoist according to the second embodiment of the present invention in the building of FIG. FIG. 3 is a schematic plan view illustrating a procedure for carrying out the first step of the method for transporting heavy objects using a hoist according to the second embodiment of the present invention in the building of FIG. It is a schematic plan view explaining the procedure in the case of carrying out the 2nd and 3rd steps of the heavy goods transport method using the hoist according to Embodiment 2 of this invention in the building of FIG. It is a schematic side view explaining the 4th process in the case of carrying out the heavy goods transport method using the hoist according to Embodiment 2 of this invention in the building of FIG. It is a schematic side view explaining the 4th process in the case of carrying out the heavy goods transport method using the hoist according to Embodiment 2 of this invention in the building of FIG. It is a schematic plan view explaining the procedure in the case of carrying out the 2nd and 3rd steps of the heavy goods transport method using the hoist according to Embodiment 4 of this invention in the building of FIG. FIG. 3 is a schematic side view illustrating a case where a heavy object transporting method using a hoist according to the fourth embodiment of the present invention is carried out in the building of FIG. FIG. 3 is a schematic side view illustrating a case where a heavy object transporting method using a hoist according to the fourth embodiment of the present invention is carried out in the building of FIG. It is a schematic diagram which shows the heavy object transport method using the hoist according to Embodiment 5 of this invention.

Hereinafter, a preferred embodiment of the method for transporting a heavy object using the hoisting machine of the present invention will be described with reference to the drawings. It should be noted that FIGS. 1 to 11 are schematic views, and the dimensions and ratios of the elements are different from the actual ones. Further, each embodiment of the present invention describes a case where a new hoisting machine 20 as a heavy object is carried into the machine room 120, but this is an example. The method for transporting heavy objects using the hoisting machine of the present invention can also be applied to the case where heavy objects such as a control panel and a machine base are carried into the machine room, and further, these heavy objects are carried out from the machine room. It is also applicable to cases.

Embodiment 1.
FIG. 1 is a front view showing an example of a building 100 for transporting a new hoisting machine 20 which is a heavy object by using the heavy object transporting method using the hoisting machine according to the first embodiment of the present invention.

As shown in FIG. 1, the building 100 includes an elevator device 1. The elevator device 1 has a car 15, a hoistway 110 for the car to move up and down, and a machine room 120 provided above the hoistway 110.

In the machine room 120, a hoisting machine 10, a deflecting wheel 12, a control panel 18, and the like are installed. For example, two steel materials 121 are installed on the floor of the machine room 120. On the two steel materials 121, a pair of hoisting machines 16 are arranged so that the longitudinal direction is orthogonal to the two steel materials 121.

The control panel 18 is fixed to the floor of the machine room 120 and controls the operation of the elevator device 1. The hoisting machine 10 is fixed to two steel materials 121 by welding via a pair of hoisting machine bases 16.

The hoisting machine 10 has a sheave 11. A main rope 14 is wound around the sheave 12 and the sheave 11 of the hoisting machine 10. One end side of the main rope 14 is attached to the car 15. The other end side of the main rope 14 is attached to the counterweight weight 13.

When the sheave 11 of the hoist 10 is rotated, the main rope 14 moves. When the main rope 14 moves, the car 15 to which one end side of the main rope 14 is attached moves up and down in the hoistway 110. As a result, the car 15 moves between the landings provided on each floor of the building 100.

Further, the building 100 is provided with a staircase 141 leading to the machine room 120 on the floor 140 on the top floor, which is a place lower than the machine room. The route from the stairs 141 to the machine room 120 is arranged linearly. In addition, in FIG. 1, the entrance / exit, the wall, etc. of the machine room 120 are omitted.

The hoisting machine 10 installed in the machine room 120 is installed in a direction and position where the path from the stairs 141 to the machine room 120 and the radial extension line of the rotation axis of the hoisting machine 10 substantially coincide with each other. ..

FIG. 2 is a schematic view illustrating a method for transporting a heavy object using a hoist according to the first embodiment of the present invention. FIG. 2 simplifies the stairs 141, walls, floors, and the like. Hereinafter, the first to fourth steps of the heavy load transport method using the hoist according to the first embodiment will be described with reference to FIGS. 1 and 2.

First, as a preparation, as shown in FIG. 1, a new hoisting machine 20 as a heavy object to be carried into the machine room 120, a material (not shown), and the like are placed on the top floor 140 of the building 100. Specifically, the new hoisting machine 20 is loaded on the trolley 200, placed on the car 15 of the elevator device 1, and transported to the floor 140 on the top floor. Then, after lowering the empty car 15 to the bottom, the hoisting machine 10 is switched to manual operation.

Next, the first step will be described. In the first step, the main rope 14 is removed from the sheave 11 of the hoisting machine 10. Peripheral devices such as the main rope 14, the deflecting wheel 12, and the balance weight 13 other than the hoisting machine 10 are stored as appropriate when reused, and disassembled when discarded. do.

Next, the second step will be described. In the second step, as shown in FIG. 2, one end side of the transport wire 80 is attached to the sheave 11. One end side of the transport wire 80 is attached so that the transport wire 80 is wound around the sheave 11 when the sheave 11 is rotated. For example, one end side of the transport wire 80 is attached to the spokes of the sheave 11 using a wire clip.

The transport wire 80 has a diameter corresponding to the weight of a heavy object. Since the groove formed on the outer circumference of the sheave 11 is shallow, there is a risk that the transport wire 80 will come off the sheave 11 when wound around it. Therefore, it is preferable to attach a flange-shaped attachment to the side surface of the sheave 11 in the axial direction to prevent the transport wire 80 from coming off.

If the transport wire 80 cannot be attached to the sheave 11, the sheave 11 is replaced with a rotating body (not shown) to which the transfer wire 80 can be attached and wound. For the rotating body, for example, a drum having flanges at both ends in the axial direction is used. The shaft portion of the drum is provided with a mounting hole for mounting the transport wire 80. The sheave 11 is removed from the rotating shaft of the hoisting machine 10 and replaced with a drum, and one end side of the transport wire 80 is attached to the mounting hole of the drum.

Next, the third step will be described. In the third step, the other end side of the transport wire 80 is attached to the suspension bolt 20a of the new hoisting machine 20. The other end of the transport wire 80 may be attached to a sling belt passed through the suspension bolt 20a of the new hoisting machine 20, or may be attached to the carriage 200.

Next, the fourth step will be described. In the fourth step, the hoisting machine 10 is manually operated to rotate the sheave 11 at a low speed. Then, one end side of the transport wire 80 is wound around the sheave 11. Then, the other end side of the transport wire 80 is attracted to the hoisting machine 10 side, and the bogie 200 on which the new hoisting machine 20 is mounted moves toward the machine room 120.

A steel plate 401 or the like is placed on the stairs 141 to form a slope. Then, the carriage 200 runs on the steel plate 401. If there is an existing slope on the side of the stairs 141, the dolly 200 is driven via the existing slope.

When the carriage 200 on which the new hoisting machine 20 is mounted arrives at the machine room 120, the transport wire 80 is removed from the hanging bolt 20a of the new hoisting machine 20. As described above, the first step to the fourth step of the first embodiment are completed, and the work of carrying the new hoisting machine 20 into the machine room 120 is completed.

After that, as the repair work of the elevator device 1, the work of replacing the existing hoisting machine 10 with a new hoisting machine 20 is performed, but this is omitted here.

After replacing the hoisting machine 10 with a new hoisting machine 20, the hoisting machine 10 is transported to the floor 140 on the top floor, but at this time, the order of the first step to the fourth step is reversed. The hoisting machine 10 can be transported from the machine room 120 to the floor 140 on the top floor. In this case, the hoisting machine 10 is transported while rewinding the transporting wire 80 wound around the hoisting machine 20, but since tension does not act on the transporting wire 80 in a place where the path is horizontal, the operator Assists in moving the hoisting machine 10.

As described above, according to the method for transporting heavy objects using the hoisting machine of the first embodiment, by using the existing hoisting machine 10 as the lifting device, the lifting device can be attached to and detached from the portal structure. And, without repeating the work of relocating the portal structure, heavy objects can be easily transported to the machine room with a simple configuration. Therefore, the man-hours for transport work are reduced.

Embodiment 2.
FIG. 3 is a schematic view illustrating a method for transporting a heavy object using a hoist according to the second embodiment of the present invention. In the method of transporting heavy objects using the hoisting machine of the second embodiment, the gate type structures 300 and 301 are installed in the machine room 120, the guide pipe 350 is arranged, and the transport wire 80 is mounted on the pulley 61. It is different from the first embodiment in that it is multiplied by. Other configurations are the same as those in the first embodiment.

The portal structure 300 includes a plurality of clamps for fixing an iron pipe 310 arranged horizontally in the longitudinal direction, a pair of pipe supports 320 for supporting the iron pipe 310, and a pair of pipe supports 320 for the iron pipe 310. It is composed of 330 and. Similarly, the portal structure 301 fixes an iron pipe 311 arranged horizontally in the longitudinal direction, a pair of pipe supports 321 for supporting the iron pipe 311 and a pair of pipe supports 321 for the iron pipe 311. It is composed of a plurality of clamps 331.

One end side of the guide pipe 350 is fixed to the iron pipe 310 of the portal structure 300 by a clamp 330. The other end side of the guide pipe 350 is fixed to the iron pipe 311 of the portal structure 301 by the clamp 331.

A pulley 61 is attached to the guide pipe 350. A transport wire 80 is hung on the pulley 61. The wire cover of the pulley 61 can be opened and closed, and the transport wire 80 can be easily attached and detached.

With this configuration, the heavy load transport method using the hoist of the second embodiment does not bring the transport wire 80 into contact with the stairs 141 even when the stairs 141 are steeply inclined. , The hoisting machine 20 can be transported from the floor 140 on the top floor to the machine room 120.

Embodiment 3.
FIG. 4 is a schematic view illustrating a method for transporting a heavy object using a hoist according to the third embodiment of the present invention. In the method of transporting heavy objects using the hoisting machine of the third embodiment, the gate-shaped structures 300 and 301 are installed in the machine room 120, the guide pipe 350 is arranged, and the floor 140 on the top floor is used. The point that the gate type structure 302 is installed and the guide pipe 351 is arranged on the stairs 141, and the point that the hoisting machine 20 is lifted by using the chain block 70 instead of the bogie 200 is the implementation. It is different from the first form. Other configurations are the same as those in the first embodiment.

The configurations of the portal structures 300 and 301 and the guide pipe 350 are the same as those in the second embodiment. The portal structure 302 has a plurality of clamps for fixing an iron pipe 313 arranged horizontally in the longitudinal direction, a pair of pipe supports 323 for supporting the iron pipe 313, and a pair of pipe supports 323 for the iron pipe 313. It is composed of 333 and.

One end side of the guide pipe 351 is fixed to the gantry structure 300, and the other end side is fixed to the gantry structure 302. A suspension member 90 that can slide and move along the guide pipe 351 is attached to the guide pipe 351. The suspension member 90 is, for example, a wire formed in an annular shape. A suspension member 91 similar to the suspension member 90 is attached to the guide pipe 350.

A hook 70a on the hanging side of the chain block 70 is hung on the hanging member 90. The other end of the transport wire 80 is attached to the hook 70a or the suspension member 90 on the suspension side of the chain block 70. The hook 70b on the lifting side of the chain block 70 is hung on the hanging bolt 20a of the hoisting machine 20 or the sling belt passed through the hanging bolt 20a. In this state, the chain of the chain block 70 is wound up and the hoisting machine 20 is lifted.

In this state, when the transport wire 80 is wound up by the existing hoisting machine 10, the suspension member 90 moves to the machine room 120 side along the guide pipe 351. As the suspension member 90 moves, the chain block 70 and the hoisting machine 20 lifted by the chain block 70 move toward the machine room 120.

When the suspension member 90 reaches one end side of the guide pipe 351, the chain of the chain block 70 is rewound and the hoisting machine 20 is lowered to the floor. Then, the hook 70a is removed from the suspension member 90 of the guide pipe 351 and the suspension member 91 of the guide pipe 350 is hung on the hook 70a. The chain of the chain block 70 is wound up, the hoisting machine 20 is lifted again, and the hoisting machine 20 is moved to a desired position along the guide pipe 350.

With this configuration, the heavy load transport method using the hoisting machine of the third embodiment has a simple configuration without arranging the steel plate 401 on the stairs 141 and without using the trolley 200. The hoisting machine 20 can be transported from the floor 140 on the top floor to the machine room 120.

Embodiment 4.
FIG. 5 is a schematic view illustrating a method for transporting a heavy object using a hoist according to the fourth embodiment of the present invention. The method for transporting a heavy object using the hoisting machine of the fourth embodiment is different from the third embodiment in that the pulley 61 of the second embodiment is added to the configuration of the third embodiment. Other configurations are the same as those in the third embodiment.

Similar to the second embodiment, the transport wire 80 is hung on the pulley 61. In this state, when the transport wire 80 is wound up by the existing hoisting machine 10, the suspension member 90 moves to the machine room 120 side along the guide pipe 351. As the suspension member 90 moves, the chain block 70 and the hoisting machine 20 lifted by the chain block 70 move toward the machine room 120.

When the suspension member 90 reaches one end side of the guide pipe 351, the chain of the chain block 70 is rewound and the hoisting machine 20 is lowered to the floor. Then, the hook 70a is removed from the suspension member 90 of the guide pipe 351 and the transfer wire 80 is removed from the pulley 61. Next, the suspension member 91 of the guide pipe 350 is hung on the hook 70a of the chain block 70. The chain of the chain block 70 is wound up, the hoisting machine 20 is lifted again, and the hoisting machine 20 is moved to a desired position along the guide pipe 350.

With this configuration, the heavy load transport method using the hoist of the fourth embodiment does not bring the transport wire 80 into contact with the stairs 141 even when the stairs 141 are steeply inclined. , The hoisting machine 20 can be transported from the floor 140 on the top floor to the machine room 120.

Up to this point, in a building 100 having a linear route from the floor 140 on the top floor to the machine room 120 via the stairs 141, heavy objects are transported using the hoisting machines according to the first to fourth embodiments of the present invention. The case of applying the method was explained. However, the route from the top floor to the machine room via the stairs is not always straight.

Therefore, next, in another building 100A as shown in FIG. 6, in which the route from the top floor 140A to the machine room 120A via the stairs 142 and 143 is not linear, an embodiment of the present invention is performed. The case of applying the heavy load transporting method using the hoisting machine according to 2 and 4 will be described with reference to FIGS. 7A to 10B.

As shown in FIG. 6, the building 100A includes an elevator device 1A. The elevator device 1A has a car 15A, a hoistway 110A on which the car 15A goes up and down, and a machine room 120A provided above the hoistway 110A.

In the machine room 120A, a hoisting machine 10A, a deflecting wheel 12A, a control panel 18A, and the like are installed. For example, two steel materials 121A are installed on the floor of the machine room 120A. On the two steel materials 121A, a pair of hoisting machines 16A are arranged so that the longitudinal direction is orthogonal to the two steel materials 121A.

The control panel 18A is fixed to the floor of the machine room 120A and controls the operation of the elevator device 1A. The hoisting machine 10A is fixed to two steel materials 121A by welding via a pair of hoisting machine bases 16A.

The hoisting machine 10A has a sheave 11A. A main rope 14A is wound around the sheave 12A and the sheave 11A of the hoisting machine 10A. One end side of the main rope 14A is attached to the car 15A.

FIG. 7A is a plan view showing an outline of a route from the top floor 140A of the building 100A to the machine room 120A. As shown in FIG. 7A, the building 100A includes a staircase 142 leading from the top floor 140A to the landing 145, and a staircase 143 leading from the landing 145 to the entrance of the machine room 120A.

In the hoisting machine 10A of the building 100A, the entrance / exit of the machine room 120A is not arranged on the radial extension line of the rotating shaft of the hoisting machine 10A. Further, the radial direction of the rotation axis of the hoisting machine 10A and the direction of the path along the staircase 143 are orthogonal to each other.

Next, preparations and the first to fourth steps in the case of applying the heavy load transport method using the hoisting machine of the second embodiment of the present invention to the building 100A will be described.

As a preparation, as shown in FIG. 6, a new hoisting machine 20 as a heavy object to be carried into the machine room 120A, a material (not shown), and the like are placed on the top floor 140A of the building 100A. Specifically, the new hoisting machine 20 is loaded on the trolley 200, placed on the car 15A of the elevator device 1A, and transported to the top floor 140A. Then, after lowering the empty car 15A to the bottom, the hoisting machine 10A is switched to manual operation.

Next, the first step will be described with reference to FIGS. 7A to 7E. In the first step, first, as shown in FIG. 7A, the main rope 14A is removed from the sheave 11A of the hoisting machine 10A. Peripheral devices such as the main rope 14A and the deflecting wheel 12A other than the hoisting machine 10A are stored when they are reused, and disassembled when they are discarded.

Next, the hoisting machine 10A is removed from the pair of hoisting machine bases 16A, and as shown in FIG. 7B, the hoisting machine 10A is turned 90 degrees and re-installed. If it is easier to form a route to the stairs 143 if the direction of the hoisting machine 10A is not changed in consideration of the arrangement and space of the equipment around the hoisting machine 10A in the machine room 120A, this work is performed. Is not necessary.

Next, as shown in FIG. 7C, the gantry structure 303 is installed in the landing 145, and the gantry structure 304 is installed in the machine room 120A.

The portal structure 303 includes three iron pipes 313 arranged horizontally in the longitudinal direction, four pipe supports 323 that support each iron pipe 313, and each iron pipe 313 and each pipe support 323. It is composed of six clamps 333 to be fixed. Similarly, the portal structure 304 includes three iron pipes 314 arranged horizontally in the longitudinal direction, four pipe supports 324 for supporting each iron pipe 314, and each iron pipe 314 and each pipe support. It consists of six clamps 334 that secure the 324 and.

Next, as shown in FIG. 7D, when the girder supports 51 to 57 are attached between the gantry structures 303, 304 and the building 100A, and the gantry structures 303, 304 are pulled in the horizontal direction. Prevent it from tipping over. The girder supports 51 to 53 are attached between the wall between the stairs 142 and the stairs 143 and the gantry structure 303. The girder supports 54 to 56 are attached between the wall between the stairs 143 and the machine room 120A and the gantry structure 304. Further, the girder supports 57 and 58 are attached between the beams 101A and 102A of the machine room 120A and the portal structure 304, respectively.

The mounting positions of the girder supports 51 to 57 are examples, and the mounting positions can be appropriately changed depending on the structures of the machine room 120A and the landing 145. Further, here, the girder supports 51 to 57 are used to prevent the gantry structures 303 and 304 from tipping over, but any member can be used as long as it is a member that can prevent the gantry structure 303 and 304 from tipping over. It doesn't matter. For example, a pipe support may be used instead of the girder support.

Next, as shown in FIG. 7E, the pulleys 62 to 65 are attached at positions where the direction of the route changes. At the landing 145, the path changes twice by 90 °. Therefore, two pulleys 62 and 63 are attached to the gate-shaped structure 303 of the landing 145. Further, the route from the stairs 143 to the machine room 120A changes by 90 °. Therefore, the pulley 64 is attached near the entrance of the machine room 120A of the portal structure 304. Further, a pulley 65 is attached to the portal structure 304 so that the direction of the transport wire 80 is directed toward the sheave 11A side of the hoisting machine 10A. The pulleys 62 to 65 have a wire cover that can be opened and closed, and the transport wire 80 can be easily attached and detached. The above is the first step.

Next, the second step will be described. In the second step, as shown in FIG. 7F, one end side of the transport wire 80 is attached to the sheave 11A. Since the attachment of the transport wire 80 to the sheave 11A is the same as that of the sheave 11 of the first embodiment, the description thereof will be omitted here.

Next, the third step will be described. In the third step, as shown in FIG. 7F, the transfer wire 80 is arranged along the path. Then, the other end side of the transport wire 80 is attached to the suspension bolt 20a of the new hoisting machine 20 loaded on the carriage 200. The other end of the transport wire 80 may be attached to a sling belt passed through the suspension bolt 20a of the new hoisting machine 20, or may be attached to the carriage 200.

Then, the intermediate portion of the transport wire 80 is hung on each pulley 62 to 65. Further, steel plates 401 and 402 are arranged on the stairs 142 and 143, respectively, to form a slope on which the carriage 200 travels.

Next, the fourth step will be described. In the fourth step, the hoisting machine 10A is manually operated to rotate the sheave 11A at a low speed. Then, one end side of the transport wire 80 is wound around the sheave 11A. Then, the other end side of the transport wire 80 is attracted to the hoisting machine 10A side, and the bogie 200 on which the new hoisting machine 20 is mounted moves.

As shown in FIG. 8A, the bogie 200 on which the hoisting machine 20 is mounted travels on the steel plate 401 and heads for the landing 145. When the bogie 200 on which the hoisting machine 20 is mounted reaches the landing 145, the hoisting operation of the hoisting machine 10A is stopped, and the transport wire 80 is removed from the pulleys 62 and 63.

Next, the traveling direction of the bogie 200 on which the hoisting machine 20 is mounted is directed toward the stairs 143. Then, the hoisting operation of the hoisting machine 10A is started. Then, as shown in FIG. 8B, the bogie 200 on which the hoisting machine 20 is mounted travels on the steel plate 402 and heads for the machine room 120A.

When the bogie 200 on which the hoisting machine 20 is mounted reaches the entrance of the machine room 120A, the hoisting operation of the hoisting machine 10A is stopped, and the transport wire 80 is removed from the pulley 64.

When the carriage 200 on which the hoisting machine 20 is mounted arrives at the machine room 120A, the transport wire 80 is removed from the hanging bolt 20a of the hoisting machine 20. As described above, when the method for transporting heavy objects using the hoisting machine according to the second embodiment is applied to the building 100A, the carrying-in work of the hoisting machine 20 into the machine room 120A is completed.

Next, a fourth step when the method for transporting heavy objects using the hoist according to the fourth embodiment is applied to the building 100A will be described with reference to FIGS. 9, 10A, and 10B.

FIG. 9 is a plan view showing an outline of a route from the top floor 140A of the building 100A to the machine room 120A when the method for transporting heavy objects using the hoist according to the fourth embodiment is applied to the building 100A. Is. 10A and 10B are side views of FIG. 9 as viewed from the staircase 142 side.

In the configuration shown in FIG. 9, the gate-shaped structure 305 is installed on the floor 140A on the top floor, the guide pipes 352 to 356 are arranged along the route, and the trolley 200 is the same as the configuration shown in FIG. 7F. The difference is that the hoisting machine 20 is lifted by using the chain block 70 instead. Other configurations are the same as those of the second embodiment shown in FIG. 7F.

One end of the guide pipe 352 is fixed to the portal structure 305, and the other end of the guide pipe 352 is fixed to the portal structure 303. One end side and the other end side of the guide pipe 353 are fixed to the portal structure 303. One end of the guide pipe 354 is fixed to the portal structure 303, and the other end of the guide pipe 354 is fixed to the portal structure 304. One end side and the other end side of the guide pipe 355 are fixed to the portal structure 304. One end of the guide pipe 356 is fixed to the portal structure 304, and the other end of the guide pipe 356 is fixed to the pipe support 325.

The installation of the portal structure 305 and the guide pipes 352 to 356 is performed in the first step. Further, the positions of the guide pipes 352 to 356 on the horizontal plane in FIG. 9 are offset from the path in order to make the figure easier to see. In reality, the positions of the guide pipes 352 to 356 on the horizontal plane overlap with the path.

Suspension members 92 to 96 that can slide and move along the guide pipes 352 to 356 are attached to the guide pipes 352 to 356, respectively. The suspension members 92 to 96 are, for example, formed by forming a wire in an annular shape.

As shown in FIG. 10A, the hook 70a on the suspension side of the chain block 70 is hung on the suspension member 92. The other end of the transport wire 80 is attached to the hook 70a or the suspension member 92 on the suspension side of the chain block 70. The hook 70b on the lifting side of the chain block 70 is hung on the hanging bolt 20a of the hoisting machine 20 or the sling belt passed through the hanging bolt 20a. In this state, the chain of the chain block 70 is wound up and the hoisting machine 20 is lifted.

In this state, the hoisting machine 10A is manually operated to rotate the sheave 11A at a low speed. Then, one end side of the transport wire 80 is wound around the sheave 11A. Then, the other end side of the transport wire 80 is attracted to the hoisting machine 10A side, and the chain block 70 and the hoisting machine 20 move along the guide pipe 352.

As shown in FIG. 10A, the hoist 20 lifted by the chain block 70 heads for the landing 145. When the chain block 70 reaches the landing 145, the hoisting operation of the hoisting machine 10A is stopped. Next, the chain of the chain block 70 is rewound, and the hoisting machine 20 is lowered to the floor of the landing 145. Then, the hook 70a is removed from the suspension member 92 of the guide pipe 352, and the suspension member 93 of the guide pipe 353 is hung on the hook 70a. The chain of the chain block 70 is wound up, the hoisting machine 20 is lifted again, and the hoisting machine 20 is moved to a desired position along the guide pipe 353.

When the chain block 70 reaches the opposite side of the guide pipe 353, the hoisting operation of the hoisting machine 10A is stopped. Next, the chain of the chain block 70 is rewound, and the hoisting machine 20 is lowered to the floor of the landing 145. Then, the hook 70a is removed from the suspension member 93 of the guide pipe 353, and the suspension member 94 of the guide pipe 354 is hung on the hook 70a. The chain of the chain block 70 is wound up, the hoisting machine 20 is lifted again, and the hoisting machine 20 is moved along the guide pipe 354 to the entrance of the machine room 120A.

When the chain block 70 reaches the entrance of the machine room 120A, the hoisting operation of the hoisting machine 10A is stopped. Next, the chain of the chain block 70 is rewound and the hoisting machine 20 is lowered to the floor. Then, the hook 70a is removed from the suspension member 94 of the guide pipe 354, and the suspension member 95 of the guide pipe 355 is hung on the hook 70a. The chain of the chain block 70 is wound up, the hoisting machine 20 is lifted again, and the hoisting machine 20 is moved into the machine room 120A along the guide pipe 355.

If it is desired to convey the hoisting machine 20 to the vicinity of the hoisting machine 10A, the hoisting machine 20 is similarly moved along the guide pipe 356. With this configuration, the hoisting machine from the top floor 140A to the machine room 120A can be easily configured without arranging the steel plates 401 and 402 on the stairs 142 and 143 and without using the bogie 200. 20 can be transported.

The number and arrangement of iron pipes, pipe supports, and clamps constituting each gantry structure are examples, and can be changed as appropriate depending on the situation at the site. Further, each gantry structure is not limited to that composed of an iron pipe, a pipe support, and a clamp. For example, each portal structure may be composed of members other than iron pipes, pipe supports, and clamps. Furthermore, if it is possible to drive anchors into the ceiling, walls, etc. of a building, iron pipes and guide pipes may be supported using anchors without installing a gantry structure, and each pulley may be anchored. It may be attached to.

Embodiment 5.
FIG. 11 is a schematic view showing a method for transporting a heavy object using a hoist according to the fifth embodiment of the present invention. In the first to fourth embodiments, the hoisting machine 20 is transported on a path having stairs, but in the heavy object transporting method using the hoisting machine of the fifth embodiment, the hoistway 110B is used as the route. The point is different from the first to fourth embodiments.

In the heavy load transporting method using the hoisting machine of the fifth embodiment, first, the gantry structure 306 is installed in the machine room 120B, and the pulley 66 is attached to the gantry structure 306. Next, the opening provided on the floor of the machine room 120B and communicating with the hoistway 110B is opened. Next, the hoisting machine 20 is arranged in the car 15B of the elevator device 1B, and the ceiling door 17 of the car 15B is opened.

Next, one end side of the transport wire 80 is connected to the sheave 11B of the existing hoisting machine 10B. Next, the intermediate portion of the transport wire 80 is hung on the pulley 66. Next, the other end side of the transport wire 80 is connected to the suspension bolt 20a of the hoisting machine 20 or the sling belt passed through the suspension bolt 20a. Next, the sheave 11B of the hoisting machine 10B is rotated at a low speed to wind up the transport wire 80. Next, the hoisting machine 20 is lifted from the car 15B by the transport wire 80. Then, the hoisting machine 20 is carried into the machine room 120B via the ceiling opening of the car 15B, the hoistway 110B, and the floor opening of the machine room 120B.

If the anchor can be struck on the ceiling of the machine room 120B, the portal structure 306 may not be installed. In this case, the anchor may be driven into the ceiling of the machine room 120B, and the pulley 66 may be attached to the anchor. Further, the hoisting machine 20 may be directly lifted by the sheave 11B of the hoisting machine 10B without going through the pulley 66. As a result, the hoisting machine 20 can be carried into the machine room 120B with a simpler configuration.

As described above, according to the method for transporting a heavy object using the hoist according to the first to fifth embodiments of the present invention, a lifting device such as a winch is not required, and a heavy object can be easily provided with a simple configuration. Can be transported. Therefore, the man-hours for transport work are reduced.

1,1A, 1B Elevator device, 10,10A, 10B Hoisting machine (existing hoisting machine), 11,11A, 11B Pulley (rotary body), 12,12A swaying car, 13 balance weight, 14,14A main Line, 15,15A, 15B Riding car, 16,16A hoisting machine stand, 18,18A control panel, 20 hoisting machine (heavy object), 20a hanging bolt (hanging member), 51-57 girder support, 61- 66 pulleys, 70 chain blocks (suspension members), 70a, 70b hooks, 80 transport wires, 90-96 suspension members, 100, 100A, 100B buildings, 101A, 102A beams, 110, 110A, 110B hoistways, 120, 120A. , 120B Machine room, 140, 140A, 140B Top floor (lower than machine room), 141-143 stairs, 145 landing, 200 pulleys, 300-305 gate type structure, 310-314 iron pipe, 320- 324 pipe supports, 330-334 clamps, 350-356 guide pipes, 401,402 steel plates.

Claims (8)

A heavy object transport using the hoist, which transports a heavy object using the hoist along a path connecting a machine room in which an existing hoist is arranged and a place lower than the machine room. It ’s a method,
The first step of removing the main rope from the hoist and
The second step of fixing one end side of the transport wire to the rotating body of the hoist, and
A third step of attaching the other end side of the transport wire to the heavy object side,
The present invention comprises a fourth step of transporting a heavy object by rotating the rotating body and winding or rewinding the transport wire around the rotating body.
A method for transporting heavy objects using a hoist. The first step is further described.
The process of installing a portal structure in the path and
Including the step of attaching the pulley to the gantry structure.
The second step is further described.
A step of winding an intermediate portion of the transport wire around the pulley.
The method for transporting a heavy object using the hoist according to claim 1. The first step is further described.
The process of installing a portal structure in the path and
The step of fixing the guide pipe to the portal structure along the path, and
The guide pipe includes a step of attaching a chain block so as to be movable along the longitudinal direction of the guide pipe.
The third step further includes a step of lifting the heavy object by the chain block.
The method for transporting a heavy object using the hoist according to claim 1. The first step is further described.
The process of installing a portal structure in the path and
The process of attaching the pulley to the gantry structure,
The step of fixing the guide pipe to the portal structure along the path, and
The guide pipe includes a step of attaching a chain block so as to be movable along the longitudinal direction of the guide pipe.
The second step is further described.
Including the step of winding the intermediate portion of the transport wire around the pulley.
The third step further includes a step of lifting the heavy object by the chain block.
The method for transporting a heavy object using the hoist according to claim 1. The route is a hoistway where the car of the elevator device goes up and down.
The method for transporting a heavy object using the hoist according to claim 1 or 2. The route includes stairs,
The method for transporting a heavy object using the hoist according to any one of claims 1 to 4. The rotating body is a sheave of the hoisting machine.
The method for transporting a heavy object using the hoist according to any one of claims 1 to 6. The rotating body is a drum having flanges at both ends in the axial direction.
The second step is
The process of removing the sheave from the rotating shaft of the hoist,
The step of attaching the drum to the rotating shaft includes.
The method for transporting a heavy object using the hoist according to any one of claims 1 to 6.

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