JP5104404B2 - Elevator installation method and installation jig used therefor - Google Patents

Description

  The present invention relates to an elevator installation method for performing various positionings by dropping down a swing line from the top of an elevator hoistway, and an installation jig used in the installation method.

  In installing the elevator, a downward swing is used for various centering, for example, for positioning the guide rail and each landing device.

FIG. 7 is a diagram for explaining a conventional elevator installation method. In FIG. 7, 17 is an elevator machine room provided above the hoistway 1, 18 is an upper mold plate for centering a guide rail, for example, 19 is installed in the machine room 17, 19 is a piano wire comprising a downward swing line, Reference numeral 20 denotes a downward swing weight connected to the lower end portion of the piano wire 19.
Conventionally, when centering work is performed in elevator installation, an installation worker drops the piano wire 19 into the hoistway 1 through the piano wire 19 to the lowering opening 18a of the upper template 18 and uses the piano wire 19 as a reference ink for the building. In addition, they were arranged at appropriate positions in the hoistway 1.

  On the other hand, in machine room-less elevators that have become mainstream in recent years, elevator installation workers cannot perform the above-described centering work in the machine room. For this reason, when performing a centering operation in a machine room-less elevator, conventionally, a ruler for centering is installed at the top of the hoistway, and a piano wire is suspended from the ruler into the hoistway (for example, patents) Reference 1).

JP 2004-35218 A

When performing a centering operation in a machine room-less elevator, an installation worker must perform many operations such as setting a ruler on a work scaffold provided near the top of the hoistway. However, in general, there is a problem that a sufficient work space is not secured on the work scaffold, and the work efficiency is greatly reduced.
In particular, as in the case described in Patent Document 1, when the piano wire is passed through the hole of the ruler (lowering hole) installed at the top of the hoistway and then suspended in the hoistway, the installation operator holds a bundle of piano wires. However, it was necessary to sequentially draw out the piano wire in the direction of the ruler hole (upward), and the burden on the installation worker was large.

  In addition, the installation operator has to perform the above-described operation of feeding out the piano wire in a narrow work space, and there is a problem that falling objects into the hoistway are easily generated during the work. In particular, if a member indispensable for work (for example, a piano wire) is dropped into the hoistway, it takes extra time to pick up the pit part of the hoistway, and the work is greatly delayed. It was.

  The present invention has been made to solve the above-described problems. The purpose of the present invention is to reduce the burden required for centering work such as guide rails and landing devices when installing a machine room-less elevator. It is possible to provide an elevator installation method capable of greatly reducing the working time, and an elevator installation jig used in the installation method.

The elevator installation method according to the present invention includes a step of assembling a work scaffold near the top of the elevator hoistway, a step of installing a ruler for centering from the work scaffold at the top of the hoistway, and a top of the hoistway A step of attaching a drum device in which a coiled downward swing line is rotatably supported at a predetermined position of a ruler installed on the ruler, and after attaching the drum device to the ruler, the drum device was attached to the end of the downward swing line The step of dropping the lower swing weight into the hoistway and placing the lower swing line over the hoistway, and the proper placement of the lower swing line in the hoistway, then the lower swing line at the top of the hoistway The step of cutting and cutting off the part of the down swing line that is arranged above and below the hoistway from the drum device, and after cutting the down swing line, fix the upper end of the down swing line placed on the hoistway to the ruler. And step, after cleavage of the plumb line, remain placed over the plumb line above and below the hoistway, those having the steps of removing the drum unit from the ruler, the.

The elevator installation jig according to the present invention is provided at the top of the elevator hoistway, and is provided with a ruler in which a lowering hole for passing a downward swing line is formed, and is provided in the ruler, and is disposed in the vicinity of the lowering hole. A drum support means, a drum device that is detachably provided on the ruler by the drum support means, and is provided at a position close to a lowering hole of the ruler, and a drum device in which a downward swing line wound in a coil shape is rotatably supported; Fixing means for fixing an end portion of the downward swing line separated from the drum device to a ruler, and the drum device has an upper end portion of the downward swing line arranged above and below the hoistway as the fixing means. It is fixed and removable from the ruler .

  According to this invention, when installing a machine room-less elevator, it is possible to reduce the burden required for centering work such as guide rails and landing devices, and to greatly shorten the work time. Become.

  In order to explain the present invention in more detail, it will be described with reference to the accompanying drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, The duplication description is simplified or abbreviate | omitted suitably.

Embodiment 1 FIG.
FIG. 1 is a diagram for explaining an elevator installation method according to Embodiment 1 of the present invention. In FIG. 1, reference numeral 1 denotes a hoistway of a machine room-less elevator formed in a building. That is, FIG. 1 shows a state where various centering operations are performed in the installation of the machine room-less elevator.

  Reference numeral 2 denotes a triangular scaffold (working scaffold) installed near the top of the hoistway 1. This triangular scaffold 2 is assembled in order to install various members necessary for elevator installation and products on the top of the hoistway 1. The elevator installation worker moves from the elevator hall provided on the uppermost floor onto the triangular scaffolding 2, for example. The triangular scaffold 2 may have any function as long as it has the above function as a work scaffold. The triangular scaffold 2 in FIG. 1 is shown as an example of a work scaffold.

3 is a template setting device provided at the top of the hoistway 1. The template setting device 3 is provided for performing various types of centering during elevator installation. That is, positioning (centering) of the guide rails and the landing devices is performed by using the downward swing line hanging from the template setting device 3. Specifically, by placing a downward swing line suspended from the template setting device 3 into the hoistway 1 at an appropriate position in the hoistway 1 according to the reference ink of the building, Each template is installed on the basis of the downward swing line stretched on.
Hereinafter, based on FIG. 2 thru | or FIG. 4, the specific structure of the said template setting apparatus 3 is demonstrated. 2 is a plan view of the template setting apparatus shown in FIG. 1, FIG. 3 is an enlarged view of the main part of the template setting apparatus shown in FIG. 2, and FIG. 4 is a side view of the main part of the template setting apparatus shown in FIG. .

  The template setting device 3 includes, for example, rulers 4 to 6 disposed on the top of the hoistway 1 and a support bar 7 that supports the rulers 4 to 6. The rulers 4 to 6 are formed with lowering holes 4a to 6a for passing the downward swing lines. The positions of the lowering holes 4a to 6a are determined in accordance with the object to be centered (guide rail, landing device, etc.).

  In the present embodiment, as an example, a case is shown in which six downward swing lines are suspended from the template setting device 3 in the hoistway 1. In other words, the ruler 4 is a ruler for the landing device, and the lowering holes 4a that match the arrangement of the landing device are formed at both ends. Similarly, the ruler 5 is a ruler for a guide rail that guides the car, and a lowering hole 5a that matches the arrangement of the guide rail for the car is provided. The ruler 6 is a ruler for the guide rail that guides the counterweight, and the counterweight Lowering holes 6a that match the arrangement of the guide rails are formed at both ends.

  Also, drum support means 8 is provided at each end of the rulers 4 to 6 at positions close to the lowering holes 4a to 6a. A drum device 9 (not shown in FIGS. 2 to 4), which will be described later, is detachably provided on the drum support means 8. That is, the drum support means 8 only needs to have a function that allows the drum device 9 to be detachably provided at predetermined positions of the rulers 4 to 6. The drum support means 8 has, for example, a plate-like drum mounting table 10 provided at a position close to the lowering holes 4a to 6a of the rulers 4 to 6, and a predetermined interval on each drum mounting table 10. The two support pins 11 are erected.

  Next, with reference to FIG. 1 thru | or FIG. 6, the installation method of the elevator which uses the said template setting apparatus 3 is demonstrated. 5 and 6 are diagrams for explaining an elevator installation method according to Embodiment 1 of the present invention.

  When centering work is performed in the installation of the machine room-less elevator, the installation operator first assembles the triangular scaffold 2 near the top of the hoistway 1. After the installation of the triangular scaffolding 2 is completed, the installation operator moves onto the triangular scaffolding 2 and fixes the support rod 7 from the triangular scaffolding 2 to the top of the hoistway 1. The centering rulers 4 to 6 are arranged at appropriate positions in the hoistway 1 and fixed to the support rod 7.

After the template setting device 3 is properly installed above the triangular scaffolding 2, the installation operator attaches the drum device 9 to the drum support means 8 on one end side of the ruler 4 provided at the top of the hoistway 1. .
The drum device 9 rotatably supports a downward swing wire 12 (for example, a piano wire) wound in a coil shape. For example, as shown in FIG. 5, a U-shape that supports the downward swing wire 12 is supported. And a L-shaped attachment 14 provided on both sides of the support 13. Here, the bottom surfaces of the support metal 13 and the mounting metal 14 are formed flush with the top surface of the drum mounting table 10. Each attachment 14 is formed with a through hole (not shown) corresponding to the support pin 11. That is, when the drum device 9 having the above configuration is attached to the drum support means 8 of the ruler 4, the drum device 9 is attached to the drum mounting table 10 with the corresponding support pins 11 disposed in the through holes of the attachment metal 14. What is necessary is just to mount on an upper surface.

  Next, the installation operator pulls out the end portion of the downward swing line 12 from the drum device 9 attached to one end portion of the ruler 4 and passes the end portion from above to the adjacent lowering hole 4a. A lower swing weight 15 is attached to the end of the lower swing line 12 below 4. FIG. 5 shows a state in which the lower swing weight 15 is attached to the end of the lower swing wire 12 by the above-described procedure.

  After attaching the lower swing weight 15 to the lower swing line 12, the installation operator drops the lower swing weight 15 into the hoistway 1 by its own weight, and arranges the lower swing line 12 over the hoistway 1. . Here, the lower swing wire 12 is rotatably supported by the support metal 13 in a coiled state as described above. For this reason, when the lower swing weight 15 falls into the hoistway 1, the part of the lower swing wire 12 supported by the support metal 13 rotates and is sequentially drawn downward from the drum device 9. That is, it is not necessary for the installation worker to carry out the downward swing line 12 on the triangular scaffold 2 at all. The drum device 9 placed on the drum placement table 10 is supported by support pins 11. For this reason, the operation | work which an installation operator hold | maintains the drum apparatus 9 becomes unnecessary during the said process which arrange | positions the downward swing line 12 over the hoistway 1 up and down.

  After arranging the downward swing line 12 at an appropriate position over the upper and lower sides of the hoistway 1, the installation operator cuts a part of the downward swing line 12 above the lowering hole 4 a on the triangular scaffold 2. . Then, the upper end portion of the downward swing line 12 arranged over the hoistway 1 is fixed to one end portion of the ruler 4, and the drum device 9 is removed from the drum support means 8 of the ruler 4. FIG. 6 shows such a state. In the figure, reference numeral 16 denotes a fixing bolt. The fixing bolt 16 is used to fix the upper end portion of the downward swing line 12 arranged over the hoistway 1 to the ruler 4, and is provided, for example, on both sides of the ruler 4 in the vicinity of the lowering hole 4 a. It is done.

  By the above operation procedure, the downward swing line 12 can be suspended in the hoistway 1 from the position of one lowering hole 4a of the ruler 4. When it is necessary to hang down the lower swing line 12 at another position in the hoistway 1, for example, at the position of the other lowering hole 4 a of the ruler 4, the installation operator is provided at the other end of the ruler 4. A drum device 9 is attached to the drum support means 8, and the downward swing line 12 is suspended in the hoistway 1 by the same procedure as described above. In addition, with respect to the ruler 5 and the ruler 6, the downward swing line 12 can be suspended from the positions of the lowering holes 5a and 6a by the same procedure.

  According to the first embodiment of the present invention, when installing a machine room-less elevator, it is possible to reduce the burden required for centering work such as guide rails and landing devices, and to greatly shorten the work time. Will be able to.

Further, since the drum device 9 is supported by the support pins 11 when attached to the drum support means 8, the position of the drum device 9 may be shifted or the drum support may be shifted when the downward swing line 12 is disposed in the hoistway 1. There is no departure from the means 8. For this reason, falling objects do not occur during the work, and there is no possibility that the work is temporarily interrupted by the occurrence of the falling objects.
The drum support means 8 is configured as in the present embodiment, so that the drum device 9 can be attached and detached without using a tool. In addition, the configuration is simplified, and the installation jig can be manufactured in a short time and at a low cost.

It is a figure for demonstrating the installation method of the elevator in Embodiment 1 of this invention. It is a top view of the template setting apparatus shown in FIG. It is a principal part enlarged view of the template setting apparatus shown in FIG. It is a principal part side view of the template setting apparatus shown in FIG. It is a figure for demonstrating the installation method of the elevator in Embodiment 1 of this invention. It is a figure for demonstrating the installation method of the elevator in Embodiment 1 of this invention. It is a figure for demonstrating the installation method of the conventional elevator.

Explanation of symbols

1 hoistway, 2 triangular scaffolding, 3 template setting device, 4-6 ruler,
4a-6a Lowering hole, 7 Support rod, 8 Drum support means, 9 Drum device,
10 Drum mounting table, 11 Support pin, 12 Lower swing line, 13 Support metal,
14 Mounting bracket, 15 Lower swing weight, 16 Fixing bolt, 17 Machine room,
18 Upper template, 18a Lowering port, 19 Piano wire, 20 Lower swing weight

Claims (4)

Assembling a work platform near the top of the elevator hoistway;
Installing a ruler for centering from the working scaffold at the top of the hoistway;
Attaching a drum device in which a coiled swing line is rotatably supported at a predetermined position of the ruler installed at the top of the hoistway;
After the drum device is attached to the ruler, a step of dropping a downward swing weight attached to an end of the downward swing line into the hoistway and disposing the downward swing line over and under the hoistway When,
After appropriately arranging the downward swing line in the hoistway, the lower swing line is cut at the top of the hoistway, and the portion of the downward swing line that is disposed above and below the hoistway is disposed in the drum device. A step of separating from the
After cutting the downward swing line, fixing the upper end portion of the downward swing line disposed in the hoistway to the ruler;
Removing the drum device from the ruler in a state where the lower swing line is disposed over the hoistway after cutting the lower swing line ; and
An elevator installation method characterized by comprising: The step of attaching the drum device to the ruler or another ruler in order to hang the downward swing line to another position in the hoistway after cutting the downward swing line and removing the drum device from the ruler. When,
The elevator installation method according to claim 1, further comprising: A ruler provided at the top of the elevator hoistway and having a lowering hole for passing a downward swing line;
A drum support means provided on the ruler and disposed in proximity to the lowering hole;
A drum device that is detachably attached to the ruler by the drum support means, and a downward swing line wound in a coil shape is rotatably supported;
A fixing means for fixing an end portion of a downward swing line, which is provided at a position close to the lowering hole of the ruler and separated from the drum device, to the ruler;
Equipped with a,
An elevator installation jig characterized in that the drum device is removable from the ruler in a state in which an upper end portion of the downward swing line arranged over the hoistway is fixed to the fixing means. . The drum support means is
A plate-like drum mounting table provided at a position close to the lowering hole of the ruler;
A plurality of support pins erected on the drum mounting table;
With
In the drum device, a through hole corresponding to the support pin is formed, and when the drum device is placed on the drum mounting table, the corresponding support pin is disposed in the through hole. The elevator installation jig according to claim 3.

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