JP2020193075A - Landing door position adjustment tool of elevator and replacement method of landing door hanger using the same - Google Patents

Abstract

To provide a landing door position adjustment tool for an elevator capable of easily adjusting positions of various types of landing doors and a replacement method of a landing door hanger using the landing door position adjustment tool.SOLUTION: A position adjustment tool includes an irradiation device 4, which is fixed to a rear surface of a landing door and emitting a laser beam toward a landing sill positioned below and a position confirmation plate 6, which is fixed to a landing sill 30 of a lading door 12 and reflects the laser beam emitted from the irradiation device 4. The irradiation device 4 emits, for example, a linear laser beam parallel to the opening/closing directions of the landing door 12. When replacing a landing door hanger 24 of the elevator, a laser beam is emitted from the irradiation device 4 to acquire an initial position of the laser beam reflected on the position confirmation plate 6. After the replacement of the landing door hanger 24, the laser beam is emitted again to acquire a present position of the laser beam reflected on the position confirmation plate 6. Then, a position of the landing door 12 with respect to the landing door hanger 24 is adjusted such that the present position is overlapped with the initial position.SELECTED DRAWING: Figure 1

Description

The present invention relates to a landing door position adjusting tool for an elevator and a method for replacing a landing door hanger using the tool.

The elevator landing door is supported from above by a component called a landing door hanger. When replacing the landing door hanger during maintenance work, the landing door is temporarily removed from the landing door hanger and reattached. At this time, it is necessary to adjust the position of the landing door with respect to the landing door hanger so that the gap between the door panel and the landing three-sided frame is within the optimum value.

For example, Patent Document 1 discloses a door panel holding device that holds the door panel at the same position as when it is hung by the landing door hanger while the landing door hanger of the elevator door panel is replaced. This holding device includes a door panel holding portion that is restrained so as to surround the lower portion of the side edge portion of the door panel, and a fixing portion that is provided at the lower end portion of the door panel holding portion and holds the door panel holding portion detachably on a threshold. ing. Then, when the landing door hanger is replaced, the door panel holding device is attached to the side edge of the door panel to support the door panel.

Japanese Unexamined Patent Publication No. 2017-20851

Since the holding device of Patent Document 1 has a structure that directly restrains the side edge of the landing door, it is assumed that the holding device cannot be used depending on the type of the landing door.

The present invention has been made to solve the above-mentioned problems, and is an elevator landing door position adjusting tool capable of easily adjusting various landing door positions, and a landing door hanger using the same. The purpose is to provide a replacement method for the door.

The position adjusting tool for the landing door of the elevator of the present invention is fixed to the back surface of the landing door of the elevator and irradiates a laser beam toward the landing threshold below, and is fixed to the landing threshold of the landing door and is an irradiation device. It is provided with a position confirmation plate that projects the laser beam emitted from the door.

In addition, the replacement method for replacing the landing door hanger using the position adjustment tool of the present invention includes an irradiation device installation process for fixing the irradiation device to the back surface of the landing door and a position confirmation plate for installing the position confirmation plate on the landing threshold. The process, the initial position acquisition process of irradiating the laser beam from the irradiation device to acquire the initial position of the laser beam projected on the position confirmation plate, the replacement process of replacing the landing door hanger of the elevator, and the laser again from the irradiation device. The current position acquisition process of irradiating light to acquire the current position of the laser beam projected on the position confirmation plate, and the adjustment process of adjusting the position of the landing door with respect to the landing door hanger so that the current position overlaps with the initial position. , Is provided.

According to the elevator landing door position adjusting tool of the present invention, various landing door position adjustments can be easily performed. Further, according to the method of exchanging the landing door hanger using the position adjusting tool of the present invention, it is possible to easily adjust the position of the landing door when the landing door hanger is exchanged.

It is a perspective view which shows the landing door opening / closing device of an elevator in Embodiment 1, and the position adjustment tool attached to this. It is a front view which looked at the position adjustment tool from the back side of a landing door. It is a side view which looked at the position adjustment tool from the back side of a landing door. It is the figure which looked at the position confirmation plate from the irradiation apparatus. This is an example showing the initial position of the laser beam projected on the position confirmation plate. This is an example showing the current position of the laser beam projected on the position confirmation plate. This is an example showing the current position of the laser beam projected on the position confirmation plate after adjusting the position of the landing door. It is a figure for demonstrating the modification of the laser beam which irradiates from an irradiation apparatus.

Hereinafter, embodiments will be described with reference to the drawings. The elements common to each figure are designated by the same reference numerals, and duplicate description will be omitted.

Embodiment 1.
1. 1. Configuration of Embodiment 1 FIG. 1 is a perspective view showing an elevator landing door opening / closing device and a position adjusting tool attached to the elevator landing door opening / closing device according to the first embodiment. Note that FIG. 1 shows a state in which the landing door opening / closing device installed at the elevator landing is viewed from the inside of the elevator hoistway.

1-1. Configuration of Landing Door Opening and Closing Device As shown in FIG. 1, the landing door opening and closing device 10 includes a landing door 12. The landing door 12 is a door for opening and closing a landing entrance / exit formed by a landing three-sided frame (not shown) and a landing floor surface. The landing door 12 is arranged on the hoistway side of the landing three-sided frame, and is configured to cover the entire landing entrance / exit when the door is closed. In the present embodiment, as an example of the landing door opening / closing device 10, a so-called two-door center-opening type landing door opening / closing device in which the landing doors 12 are moved to both sides one by one to open / close the landing entrance / exit will be described.

A hanger case 16 is provided above the entrance / exit of the landing. The hanger case 16 is for supporting the opening / closing mechanism portion for opening / closing the landing door 12 and the landing door 12 itself. The hanger case 16 is fixed to a hoistway fixing body such as a building beam or a support beam.

The hanger case 16 is provided with an opening / closing mechanism such as a rail 18, a hanger case cover 20, and a rope pulley 22. The rail 18 is provided to support the landing door 12 and guide the opening / closing direction of the landing door 12. The hanger case cover 20 is provided on the hanger case 16 so as to cover the opening / closing mechanism portion such as the rail 18 from the inside of the hoistway to the entire width of the landing entrance / exit. The rope pulley 22 is for opening the two landing doors 12 in the center, that is, moving them in opposite directions.

Further, the landing door 12 that opens and closes the landing entrance / exit has a configuration for laterally moving (opening / closing operation) while being suspended by the rail 18. Specifically, the landing door 12 is provided with a landing door hanger 24, a roller 26, and the like.

The lower end of the landing door hanger 24 is fastened and fixed to the upper end surface of the landing door 12 by two bolts 28 via a height adjusting metal (not shown) or the like. Further, a roller 26 is rotatably provided on the landing side of the upper end portion extending upward from the landing door 12 via a horizontal axis. Then, the landing door 12 is supported in a state of being suspended from the rail 18 via the roller 26 and the landing door hanger 24 by mounting the roller 26 on the upper surface of the rail 18. Further, as the roller 26 rolls on the rail 18, it moves laterally (opens and closes) while being suspended by the rail 18.

Below the landing door 12, a landing threshold 30 is installed to guide the moving direction (opening / closing direction) of the lower end portion of the landing door 12 over the frontage direction of the landing entrance. Further, from the landing threshold 30, an apron 32 is hung in the hoistway.

1-2. Configuration of Positioning Tool 2 As shown in FIG. 1, the position adjusting tool 2 includes an irradiation device 4 installed on the wall surface of the landing door 12 and a position confirmation plate 6 provided on the landing threshold 30 below the landing door 12. It is composed including and. In the example shown in the figure, an irradiation device 4 and a position confirmation plate 6 are provided corresponding to each of the two landing doors 12.

FIG. 2 is a front view of the position adjusting tool as viewed from the back surface of the landing door. Further, FIG. 3 is a side view of the position adjusting tool as viewed from the back surface of the landing door. Further, FIG. 4 is a view of the position confirmation plate viewed from the irradiation device. In these figures, the position adjusting tool 2 arranged on one of the two landing doors 12 is shown.

The irradiation device 4 is a device that irradiates a linear laser beam L from the light emitting unit 4a. The irradiation device 4 is configured to include a magnet for bringing the installation surface 4b into contact with the metal surface to be installed and adsorbing and fixing it. Here, the irradiation device 4 is installed on the wall surface of the landing door 12 so as to irradiate a linear laser beam L extending in the opening / closing direction of the landing door 12 in the direction of the landing threshold 30 vertically below.

The position confirmation plate 6 is a plate member for projecting the laser beam L emitted from the irradiation device 4. The position confirmation plate 6 has a confirmation surface 6a for projecting the laser beam L and an installation surface 6b bent at a right angle from the confirmation surface 6a. The confirmation surface 6a is provided with a grid-like scale 6c for confirming the position of the projected laser beam L. The position confirmation plate 6 includes a magnet for bringing the installation surface 6b into contact with the metal surface to be installed to attract and fix it. Here, the position confirmation plate 6 has the confirmation surface 6a facing the irradiation device 4, and the installation surface 6b is adsorbed and fixed to the side edge portion of the landing sill 30 directly below the landing door 12 and the apron 32. The position confirmation plate 6 is set so that the length of the confirmation surface 6a in the lateral direction is smaller than the gap between the car and the landing threshold 30 so as not to come into contact with the car in the elevator hoistway. ..

2. 2. Installation of position adjustment tool and replacement method of landing door hanger The landing door hanger 24 may be replaced during repair work. Since the landing door hanger 24 supports the landing door 12, it is necessary to remove the bolt 28 and remove the landing door 12 in the replacement work of the landing door hanger 24. When the landing door hanger 24 is attached, it is necessary to make fine adjustments while repeatedly opening and closing the landing door 12 so that the gap (dust) between the landing three-sided frame and the landing door 12 is within the specified range. The position adjusting tool 2 of the embodiment makes it possible to improve the work efficiency in such a replacement work of the landing door hanger 24. Hereinafter, a method of replacing the landing door hanger 24 using the position adjusting tool 2 of the embodiment will be described in order.

First, in the first irradiation device installation step, the irradiation device 4 is installed on the landing door 12. Here, as shown in FIGS. 2 and 3, the installation surface 4b is adsorbed and fixed to the wall surface of the landing door 12 so that the light emitting portion 4a of the irradiation device 4 faces vertically downward.

In the next position confirmation plate installation step, the position confirmation plate 6 is installed on the landing threshold 30. Here, as shown in FIGS. 2 to 4, the position confirmation plate 6 is installed at a position where the linear laser beam L emitted from the light emitting unit 4a of the irradiation device 4 is projected onto the confirmation surface 6a.

In the next initial position acquisition step, the laser beam is irradiated from the light emitting unit 4a of the irradiation device 4 toward the position confirmation plate 6. Then, the initial position of the laser beam projected on the position confirmation plate 6 is acquired. FIG. 5 is an example showing the initial position of the laser beam projected on the position confirmation plate. As shown in this figure, in this step, for example, the initial position L1 of the laser beam L projected on the position confirmation plate 6 is marked by a marking line or the like.

In the next replacement step, the landing door hanger 24 is replaced. Here, the landing door 12 is removed by first removing the bolt 28 fixing the landing door 12. Then, after the landing door hanger 24 is replaced with a new landing door hanger 24, the landing door 12 is temporarily fixed to the new landing door hanger 24.

In the next current position acquisition step, the laser beam is again irradiated from the light emitting unit 4a of the irradiation device 4 toward the position confirmation plate 6. Then, the current position L2 of the laser beam L projected on the position confirmation plate 6 is acquired. FIG. 6 is an example showing the current position of the laser beam projected on the position confirmation plate. In the example shown in this figure, the current position L2 of the laser beam L projected on the position confirmation plate 6 is deviated from the initial position L1.

In the next adjustment step, the position of the landing door 12 with respect to the landing door hanger 24 is finely adjusted so that the current position L2 of the laser beam projected on the position confirmation plate 6 overlaps the initial position L1. FIG. 7 is an example showing the current position of the laser beam projected on the position confirmation plate after adjusting the position of the landing door. In the example shown in this figure, the current position L2 of the laser beam overlaps the initial position L1, so the bolt 28 is fully tightened in this state. As a result, the landing door 12 is fixed to the landing door hanger 24.

As described above, according to the position adjusting tool 2, before and after the replacement of the landing door hanger 24, the relative position of the irradiation device 4 with respect to the position confirmation plate 6, that is, the relative position of the landing door 12 with respect to the landing threshold is adjusted to the same position. Can be done. As a result, it is possible to easily adjust the gap (dust) of the landing door 12 with respect to the landing three-sided frame after the landing door hanger 24 is replaced.

3. 3. Deformation example of the position adjusting tool of the embodiment The position adjusting tool 2 of the embodiment may be modified as follows.

The irradiation device 4 is not limited to a configuration that irradiates a linear laser beam L. FIG. 8 is a diagram for explaining a modification of the laser beam emitted from the irradiation device. Note that FIG. 8 shows the laser beam projected on the position confirmation plate 6. As shown in this figure, for example, the irradiation device 4 may be configured to irradiate different laser beams P1 and P2 from a plurality of light emitting units 4a. Even in such a configuration, the mounting position of the landing door 12 may be finely adjusted so that the positions of the plurality of laser beams P1 and P2 match before and after the replacement of the landing door hanger 24.

The irradiation device 4 may have a configuration in which, in addition to the laser light irradiating vertically downward, the irradiating device 4 further irradiates the laser light in the opening / closing direction of the landing door 12. In this case, the position confirmation plate 6 may be further provided at a position where the laser beam in the opening / closing direction can be projected. According to such a configuration, it is possible to adjust the position of the landing door 12 in the height direction.

The scale 6c attached to the position confirmation plate 6 is not limited to the grid-like scale. That is, the form of the scale 6c is not limited as long as it is attached so as to serve as a guide for the amount of adjustment when the position of the landing door 12 is adjusted with respect to the landing door hanger 24.

The irradiation device 4 may be configured so that the irradiation direction of the laser light emitted from the light emitting unit 4a can be adjusted. According to such a configuration, even if the position confirmation plate 6 cannot be installed at a position directly under the light emitting unit 4a, the laser beam L emitted from the irradiation device 4 can be projected on the position confirmation plate 6. It becomes.

The irradiation device 4 may be configured to include a fixing method other than a magnet. That is, the irradiation device 4 may employ other known fixing methods such as suction cups or adhesion. Similarly, for the position confirmation plate 6, a known fixing method other than the magnet may be adopted.

The laser light emitted from the irradiation device 4 is not limited to visible light, and may be invisible light such as UV laser light. When the irradiation device 4 that irradiates the UV laser light is used, the position of the laser light can be confirmed by, for example, applying a paint that receives the UV laser light and shines on the surface of the position confirmation plate 6.

2 Position adjustment tool 4 Irradiation device 4a Light emitting part 4b Installation surface 6 Position confirmation plate 6a Confirmation surface 6b Installation surface 6c Scale 10 Landing door opening / closing device 12 Landing door 16 Hanger case 18 Rail 20 Hanger case cover 22 Rope pulley 24 Landing door hanger 26 Roller 28 Bolt 30 Landing threshold 32 Apron

Claims (7)

An irradiation device that is fixed to the back of the elevator landing door and irradiates laser light toward the landing threshold below.
A position confirmation plate fixed to the landing threshold of the landing door and projecting a laser beam emitted from the irradiation device, and
Elevator landing door position adjustment tool characterized by being equipped with. The position adjusting tool for an elevator landing door according to claim 1, wherein the irradiation device is configured to irradiate a linear laser beam extending in an opening / closing direction of the landing door. The elevator landing door according to claim 1 or 2, wherein the position confirmation plate has a scale for confirming the position of the laser light on a confirmation surface on which the laser light is projected. Position adjustment tool. The irradiation device according to any one of claims 1 to 3, wherein the irradiation device includes a magnet for attracting and fixing an installation surface in contact with the landing door to the landing door. Elevator landing door position adjustment tool. The position adjusting tool for an elevator landing door according to any one of claims 1 to 4, wherein the irradiation device is configured so that the irradiation direction of the laser beam can be adjusted. The one according to any one of claims 1 to 5, wherein the position confirmation plate includes a magnet for attracting and fixing the installation surface in contact with the landing threshold to the landing threshold. Elevator landing door position adjustment tool. A replacement method for replacing the landing door hanger of the elevator using the position adjusting tool according to any one of claims 1 to 6.
The irradiation device installation process of fixing the irradiation device to the back surface of the landing door, and
The position confirmation plate installation process for installing the position confirmation plate on the landing threshold, and
An initial position acquisition step of irradiating a laser beam from the irradiation device to acquire an initial position of the laser beam projected on the position confirmation plate.
The replacement process for replacing the landing door hanger of the elevator, and
The current position acquisition step of irradiating the laser beam again from the irradiation device to acquire the current position of the laser beam projected on the position confirmation plate, and
An adjustment step of adjusting the position of the landing door with respect to the landing door hanger so that the current position overlaps with the initial position.
How to replace the landing door hanger, which is characterized by being equipped with.

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