JP6020735B2 - Elevator equipment - Google Patents

Description

The present invention relates to an elevator apparatus that modifies an existing hoisting machine installed in a hoistway of a machine room-less elevator to a new hoisting machine.

In recent years, some machine room-less elevators have a considerable number of years since the start of operation, and some renovate existing hoisting machines to new hoisting machines. In the machine room-less elevator, for example, a structure in which the hoisting machine is arranged on the bottom of the hoistway pit (Reference 1), a structure in which the hoisting machine is raised from the bottom of the hoistway pit (Reference 2), There is a structure in which the hoisting machine is arranged at the top of the hoistway (Reference 3).

Japanese Patent Laid-Open No. 10-236751 WO2001 / 042121 WO2008 / 041266

In such an elevator, when upgrading an existing hoisting machine to a new hoisting machine, the existing hoisting machine is removed from the fixing member fixed to the hoistway, and the removed existing hoisting machine is moved up and down. After carrying out of the road, it is necessary to carry in the new hoisting machine of the same attachment structure in a hoistway, and to attach to an existing fixing member. In addition, since this fixing member is designed in accordance with the structure of the existing hoisting machine, it may be difficult to divert depending on the mounting structure of the new hoisting machine, and this fixing member must be removed and newly installed. There was a problem.

The present invention has been made to solve the above-described problems. When the existing hoisting machine is modified to a new hoisting machine, the existing hoisting machine, the attachment frame, and the fixing member are all removed. An object of the present invention is to provide an elevator apparatus capable of shortening the construction period by eliminating the trouble, diverting the existing products left without being removed and reducing the number of new products.

An elevator apparatus according to the present invention is an elevator apparatus for refurbishing an existing hoisting machine installed in a hoistway of a machine room-less elevator with a new hoisting machine, and is provided for holding an existing hoisting machine or an existing hoisting machine First fixing means for fixing the existing hoisting machine to the hoistway against the load urged in the vertical direction by the main rope wound around the sheave of the existing hoisting machine before the frame or repair And a second fixing means for fixing the new hoisting machine to the existing hoisting machine or the mounting frame against the load urged in the vertical direction by the rope wound around the sheave of the new hoisting machine. , And either the existing hoisting machine or the mounting frame or the first fixing means is left in the hoistway after being refurbished, and the second fixing means is one of the existing hoistings left in the hoistway Upper machine or mounting frame or first Secured to one of the fixing means, it is characterized in that the other is fixed to the new hoisting machine.

The present invention eliminates the trouble of removing the existing hoisting machine, the mounting frame, and the fixing member when renovating the existing hoisting machine to the new hoisting machine, and diverts the existing equipment that has not been removed and newly installed. By reducing the number of products, an elevator device that can shorten the construction period can be realized.

1 is a perspective view showing an elevator apparatus according to Embodiment 1 of the present invention. It is a front view which shows the waist | hip | lumbar part by the portable 1 of implementation of this invention. It is a front view which shows the elevator apparatus before the repair by Embodiment 1 of this invention. It is a front view which shows the form of the other pattern 1 which comprises the principal part by Embodiment 1 of this invention. It is a front view which shows the form of the other pattern 2 which comprises the principal part by Embodiment 1 of this invention. It is a front view which shows the form of the other pattern 3 which comprises the principal part by Embodiment 1 of this invention. It is a front view which shows the principal part by Embodiment 2 of this invention. It is a front view which shows the form of the other pattern 1 which comprises the principal part by Embodiment 2 of this invention. It is a front view which shows the principal part by Embodiment 3 of this invention. It is a front view which shows the principal part by Embodiment 4 of this invention.

Embodiment 1 FIG.
1 to 6 illustrate an elevator apparatus according to Embodiment 1 of the present invention. FIG. 1 is a perspective view showing an elevator apparatus after an existing hoisting machine is modified to a new hoisting machine, and FIG. FIG. 3 is a front view showing an elevator apparatus before an existing hoisting machine is repaired to a new hoisting machine. 4-6 is a front view which shows the other pattern which comprises the principal part. As shown in the figure, a car 2 (dotted line) and a balancing weight 3 (dotted line) are suspended by a main rope 4 by 2: 1 roping in the hoistway 1. The new hoisting machine 8 is arranged directly above the existing hoisting machine 5 through the vertical pillar 10. The elevator hall is not shown.

The existing hoisting machine 5, the attachment frame 6 that holds the existing hoisting machine 5, and the hoisting machine raising base 7 are all fixed after being repaired without being removed after the repair. Left in place. The existing hoisting machine 5 is held by a mounting frame 6 and is fixed at a predetermined height in the hoistway 1 through a hoisting machine raising base 7. The hoisting machine raising base 7 fixes the existing hoisting machine 5 to the hoistway 1 against the load urged in the vertical direction by the main rope 4 wound around the sheave of the existing hoisting machine 5. Provided as one fixing means, one end is fixed to the mounting frame 6 and the other end is fixed to the hoistway 1. The new hoisting machine 8 is held by an attachment frame 9 and is connected and fixed to the attachment frame 6 via a vertical column 10.

On the other hand, the bottom portion of the car 2 is wound around one side of the main rope 4 wound around the sheave 11 of the newly installed hoisting machine 8, and is pulled in the vertical direction (upward) by the weight of the car 2. A load is acting. Furthermore, the upper part of the balance weight 3 is wound around the other side of the main rope 4 wound around the sheave 11 of the newly installed hoisting machine 8 and is pulled in the vertical direction (upward) by the weight of the balance weight 3. The applied load is acting. Here, a load that is always urged in the vertical direction by the wound main rope 4 acts on the newly installed hoisting machine 8.

That is, the vertical column 10 is a means for fixing the new hoisting machine 8 to the hoistway 1 against the load urged in the vertical direction by the main rope 4 wound around the sheave 11 of the new hoisting machine 8. A second fixing means is provided, one fixed to the mounting frame 6 and the other fixed to the mounting frame 9. Before the refurbishment, the hoisting machine raising platform 7 is subjected to a load urged in the vertical direction by the main rope 4 wound around the sheave of the existing hoisting machine 5 in the same manner as the vertical column 10. It is assumed that

Next, the operation of the first embodiment configured as described above will be described. First, the main rope 4 hung on the existing hoisting machine 5 is removed. One end of the vertical column 10 extending upward in the hoistway 1 is fastened to a mounting hole provided in the vicinity of the upper end portion of the mounting frame 6 or a mounting hole processed at the time of repair. An attachment frame 8 on which a new hoisting machine 8 is held is fastened to the other end of the vertical column 10. Thereafter, the newly prepared main rope 4 is attached to the sheave 11 of the new hoisting machine 8. The suspension load that is applied to the newly installed hoisting machine 8 and is urged in the vertical direction is supported by the hoistway via the vertical column 10, the attachment frame 6, and the hoisting machine raising platform 11.

In the first embodiment described above, the mounting frame 6 is fixed to one of the vertical columns 10, but when there is no mounting frame 6 as shown in the pattern 1 of FIG. 4, only the existing hoisting machine 5 may be left. In this case, one end of the vertical column 10 is attached to a mounting hole provided in advance in the vicinity of the left and right ends of the existing hoisting machine 5 left in the hoistway 1, or a bolt or the like to a mounting hole processed in the field at the time of repair. The new hoisting machine 8 is fastened to the other end.

Further, in the pattern 1 of the first embodiment, the mounting frame 6 is removed and only the existing hoisting machine 5 is left. However, as shown in the pattern 2 in FIG. 5, the existing hoisting machine 5 is removed and the mounting frame 6 is removed. You may leave only. In this case, one end of the vertical column 10 is fastened with a bolt or the like to a mounting hole provided in advance in the vicinity of the left and right ends of the mounting frame 6 left in the hoistway 1 or a mounting hole processed at the time of repair. Then, the new hoisting machine 8 is fastened to the other end.

In the first embodiment, the existing hoisting machine 5 and the new hoisting machine 8 are arranged in the lower part of the hoistway 1. A system arranged at the top may be used. As shown in the pattern 3 of FIG. 6, the existing hoisting machine 5 is arranged around the top 13 of the hoistway 1 and is arranged on the upper part of the machine base 14 that holds the existing hoisting machine 5. When there is no attachment frame 6 of the existing hoisting machine 5 arranged in the upper part of the hoistway 1, only the existing hoisting machine 5 is left. In this case, one end (upper side) of the vertical column 10 is provided in advance in the vicinity of the left and right ends of the existing hoisting machine 5 left in the hoistway 1, or a mounting hole processed in the field at the time of repair. And a new hoisting machine 8 is fastened to the other end (lower side).

As described above, according to the first embodiment, in the elevator apparatus that modifies the existing hoisting machine 5 installed in the hoistway 1 of the machine room-less elevator to the new hoisting machine 8, the existing hoisting machine 5 or The existing hoisting machine 6 resists the load urged in the vertical direction by the main rope 4 wound around the mounting frame 6 that holds the existing hoisting machine 5 or the sheave 12 of the existing hoisting machine 5 before repairing. A load that is urged in the vertical direction by any one of the hoisting machine raising base 7 that is the first fixing means for fixing 5 to the hoistway and the main rope 4 wound around the sheave 11 of the newly installed hoisting machine 8 Against the existing hoisting machine 5 or the mounting frame 6 or hoisting, and a vertical column 10 as a second fixing means for fixing the new hoisting machine 8 to the existing hoisting machine 5 or the mounting frame 6. If any of the machine raising base 7 is left in the hoistway 1 after being repaired, The vertical column 10 is fixed to either the existing hoisting machine 5 or the mounting frame 6 or the hoisting machine raising base 7 left in the hoistway 1 and the other is fixed to the new hoisting machine 8. Thus, the existing hoisting machine 5, the attachment frame 6, and the hoisting machine raising base 7 are used without being removed as means for fixing the new hoisting machine 8 to the hoistway 1. This eliminates the trouble of removing all of the existing hoisting machine 5, the mounting frame 6, and the hoisting machine raising base 7, and the existing equipment remaining without being removed is diverted and the number of new equipment is reduced. Can be realized.

Embodiment 2. FIG.
FIG. 7 is a front view showing a main part according to the second embodiment of the present invention. In the elevator apparatus according to Embodiment 2 of the present invention, the second fixing means is a wire 17 wound around the sheave 12 of the existing hoisting machine 5 instead of the vertical column 10 and the shackle rod to which the end of the wire 17 is fixed. 18, the same symbols are added to the other similar parts, and the description is omitted. 7 to 8 illustrate an elevator apparatus according to Embodiment 2 of the present invention. FIG. 7 is a front view showing the main part, and FIG. 8 is a front view showing another pattern constituting the main part.

In the figure, the existing hoisting machine 5 is fixed to the bottom of the hoistway 1 and remains in a fixed position before the repair without being removed after the repair. The new hoisting machine 8 is held by the mounting frame 9 and also has a steady rest 16 of the guide rail 15 fixed to the upper and lower parts of the mounting frame 9 and a wire wound around the sheave 12 of the existing hoisting machine 5. 17 and a shackle rod 18 to which the end of the wire 17 is fixed, respectively, are attached to the guide rail 15 and the existing hoisting machine 5. In addition, since the attachment part for providing the shackle rod 18 and the shackle rod 18 is formed, the attachment frame 9 is extended in the vertical direction so that the longitudinal direction of the shackle rod 18 can be accommodated. Here, a load that is always urged in the vertical direction by the wound main rope 4 acts on the newly installed hoisting machine 8.

That is, the wire 17 wound around the sheave 12 of the existing hoisting machine 5 and the shackle rod 18 to which the end of the wire 17 is fixed are vertically aligned by the main rope 4 wound around the sheave 11 of the new hoisting machine 8. Is provided as a second fixing means that is a means for fixing the newly installed hoisting machine 8 to the hoistway 1 against the load biased in the direction, one on the mounting frame 9 and the other on the existing hoisting machine 5. Each is fixed.

Next, the operation of the second embodiment configured as described above will be described. A wire 17 is hung in a U shape with respect to the sheave 12 of the existing hoisting machine 5, and both ends of the wire 17 are fixed to shackle rods 18 provided at the lower part of the mounting frame 7. The upper and lower sides of the mounting frame 9 are fixed to the guide rail 15 with a steady rest 16. Thereafter, the newly prepared main rope 4 is attached to the sheave 11 of the new hoisting machine 8. The load urged in the vertical direction generated in the newly installed hoisting machine 8 is supported by the hoistway 1 via the wire 17 and the sheave 12 of the existing hoisting machine 5. The steady rest 16 is provided in order to support the load on the guide rail 15 when a horizontal load is applied to the newly installed hoisting machine 8 such as an earthquake. Almost no effect.

In the second embodiment, the existing hoisting machine 5 and the new hoisting machine 8 are arranged at the lower part of the hoistway 1. A system arranged at the top may be used. As shown in pattern 1 in FIG. 8, the existing hoisting machine 5 is arranged around the top portion 13 of the hoistway 1 and is arranged on the upper part of the machine base 14 that holds the existing hoisting machine 5. The mounting frame 6 of the existing hoisting machine 5 arranged in the upper part of the hoistway 1 is removed, leaving only the existing hoisting machine 5. In this case, the wire 17 wound around the sheave 12 of the existing hoisting machine 5 and the shackle rod 18 to which the end of the wire 17 is fixed are caused by the main rope 4 wound around the sheave 11 of the new hoisting machine 8. It is provided as a second fixing means which is a means for fixing the newly installed hoisting machine 8 to the hoistway 1 against the load biased in the vertical direction, one on the mounting frame 9 and the other on the existing hoisting machine 5. It is fixed to each.

As described above, according to the second embodiment, the second fixing means includes the wire 17 wound around the sheave 11 of the existing hoisting machine 5 and the end of the wire 17 provided in the new hoisting machine 8 is fixed. In the case where the existing hoisting machine 5 and the mounting frame 6 are both removed without removing the existing hoisting machine 5 and the mounting frame 6, the existing hoisting machine is used as in the first embodiment. There is no need to perform processing for providing the vertical column 10 in the upper machine 5, and the sheave 12 of the existing hoisting machine 5 is used as it is, so that an elevator apparatus that can further shorten the construction period can be realized.

Embodiment 3 FIG.
FIG. 9 is a front view showing a main part according to the third embodiment of the present invention. In the elevator apparatus according to Embodiment 3 of the present invention, the second fixing means is fixed to the mounting frame 9 instead of the wire 17 and the shackle rod 18 of Embodiment 2, and the other is the existing hoisting machine 5. The support frame 19 is fixed to the sheave shaft 20, and the same symbols are added to the other similar parts, and the description is omitted.

In the figure, the existing hoisting machine 5 is fixed to the bottom of the hoistway 1 and remains in a fixed position before the repair without being removed after the repair. The new hoisting machine 8 is held by the mounting frame 9 and includes a steady rest 16 and a support frame 19, one of which is fixed to the mounting frame 9 and the other of which is fixed to the sheave shaft 20 of the existing hoisting machine 5. Are respectively attached to the guide rail 15 and the existing hoisting machine 5. One of the support frames 19 is fixed to an end portion of the mounting frame 9, and a hole 21 through which the sheave shaft 20 can pass is formed on the other, and is formed of a plate-like member having a predetermined strength in the vertical direction. . Here, a load that is always urged in the vertical direction by the wound main rope 4 acts on the newly installed hoisting machine 8.

That is, the support frame 19 is a means for fixing the new hoisting machine 8 to the hoistway 1 against the load urged in the vertical direction by the main rope 4 wound around the sheave 11 of the new hoisting machine 8. Provided as a second fixing means, one is fixed to the mounting frame 9 by a bolt, the other is provided with a hole 21, and the sheave shaft 20 of the hoisting machine 5 is fixed through the hole 21.

Next, the operation of the third embodiment configured as described above will be described. The sheave 12 of the existing hoisting machine 5 is removed, and the support frame 19 is fixed to the hole 21 of the sheave shaft 20. The support frame 19 is fixed to the sheave shaft 20 by the same fixing method as the sheave 12. The upper end of the support frame 19 and the attachment frame 9 are fixed with bolts. The load generated in the new hoisting machine 8 and urged in the vertical direction is supported by the hoistway 1 through the support frame 19 and the sheave shaft 20 of the existing hoisting machine 5. Since the weight of the newly installed hoisting machine 8, that is, a load applied vertically downward does not act on the support frame 19, it only needs to have a predetermined tensile strength in the vertical direction.

As described above, according to the third embodiment, one of the support frames 19 as the second fixing means is fixed to the sheave shaft 20 of the existing hoisting machine 5 and the other is fixed to the new hoisting machine 8. By being the support frame, it is possible to eliminate the influence due to the aging of the suspension wire 17 shown in the second embodiment. In addition, when the existing hoisting machine 5 and the attachment frame 6 are both free from the trouble of removing them and the existing equipment left without being removed is used, the vertical hoist 10 is provided in the existing hoisting machine 5 as in the first embodiment. Therefore, since the sheave shaft 20 of the existing hoisting machine 5 is used as it is, an elevator device that can further shorten the construction period can be realized.

Embodiment 4 FIG.
FIG. 10 is a front view showing a main part according to the fourth embodiment of the present invention. The elevator apparatus according to Embodiment 4 of the present invention is different from the elevator apparatus according to Embodiment 1 in that the length of the second fixing means in the vertical direction is set to a predetermined length. Additional description is omitted.

In the figure, the car 2 is stopped at the lowest floor (indicated as “A” in the figure), and the existing hoisting machine 5 is fixed at the same height as the lowest floor or a position above it. A car upper handrail 22 having a predetermined height is provided on the upper portion of the car 2. The vertical column 10 has a predetermined length in the vertical direction. Specifically, the length of the vertical column 10 is set to such a length that the newly installed hoisting machine 8 is fixed at a position higher than the uppermost portion of the car upper handrail 22 in a standing state.

Next, the operation of the fourth embodiment configured as described above will be described. When the car 2 stops at the lowest floor, the length of the vertical column 10 is adjusted so that the newly installed hoisting machine 8 is at a position higher than the uppermost part in the state where the car handrail 22 stands up. 23 is fixed at a position where maintenance work can be performed from the top of the car 2.

In the fourth embodiment, the car 2 is stopped at the lowermost floor, but may be stopped at the uppermost floor. When the existing hoisting machine 5 is fixed to the upper part of the hoistway 1, that is, when the car 2 stops on the top floor in FIG. It can be easily configured to set the length so that the new hoisting machine 8 is fixed at a position higher than the uppermost portion of the car upper handrail 22 in a standing state (not shown).

Conventionally, the existing hoisting machine 8 has been fixed at the same height as the lowest floor of the car 2 or above, so that an operator can get into the upper part of the car 2 and perform maintenance work. There wasn't. As described above, according to the fourth embodiment, when the elevator car 2 is on the uppermost floor or the lowermost floor of the hoistway 1, the newly installed hoisting machine 8 can perform maintenance work from above the car 2. By being fixed at a possible position, the operator 23 can get into the upper part of the car 2 and perform maintenance work. As a result, there is an effect that it is not necessary to install a work table for performing maintenance work on the bottom surface of the pit. Furthermore, by eliminating the need to remove all the existing hoisting machine 5, the mounting frame 6, and the hoisting machine raising base 7, the existing parts remaining without being removed are diverted and the number of new equipment is reduced, thereby reducing the construction period. It goes without saying that an elevator device that can be shortened can be realized.

  The present invention relates to an elevator apparatus that modifies an existing hoisting machine installed in a hoistway of a machine room-less elevator to a new hoisting machine.

  DESCRIPTION OF SYMBOLS 1 Hoistway, 2 Passenger car, 3 Balanced weight, 4 Main rope, 5 Existing hoisting machine, 6 Mounting frame, 7 Hoisting machine raising stand, 8 New hoisting machine, 9 Mounting frame, 10 Vertical pillar, 11 Sheave , 12 sheave, 13 top, 14 machine base, 15 guide rail, 16 steady rest, 17 wire, 18 shackle rod, 19 support frame, 20 sheave shaft, 21 hole, 22 cage rail, 23 worker

Claims (5)

In an elevator apparatus for renovating an existing hoisting machine installed in a hoistway of a machine room-less elevator to a new hoisting machine,
In opposition to a load that is urged in a vertical direction by a main rope wound around a sheave of the existing hoisting machine or a mounting frame that holds the existing hoisting machine or before repairing the existing hoisting machine, One of the first fixing means for fixing the existing hoisting machine to the hoistway, and the new installation against the load urged in the vertical direction by the main rope wound around the sheave of the new hoisting machine A second fixing means for fixing the hoisting machine to the existing hoisting machine or the mounting frame,
Either the existing hoisting machine or the mounting frame or the first fixing means is left in the hoistway after refurbishment, and one of the second fixing means is left in the hoistway. Further, the elevator apparatus is fixed to either the existing hoisting machine, the mounting frame, or the first fixing means, and the other is fixed to the new hoisting machine.
The elevator apparatus according to claim 1, wherein the second fixing means is a vertical column having a predetermined length.
The second fixing means is a wire wound around a sheave of the existing hoisting machine and a shackle rod provided in the new hoisting machine and to which an end of the wire is fixed. Item 2. The elevator apparatus according to Item 1.
2. The elevator apparatus according to claim 1, wherein one of the second fixing means is a support frame that is fixed to a sheave shaft of the existing hoisting machine and the other is fixed to the new hoisting machine. .
The new hoisting machine is fixed to a position where maintenance work can be performed from above the car when the elevator car is on the uppermost floor or the lowermost floor of the hoistway. The elevator apparatus in any one of Claims 1-4.

Images