JP2015030593A - Elevator control panel and elevator using the same, and maintenance method for elevator control panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator control panel capable of preventing interference between a cover of a control panel and equipment inside a hoistway.SOLUTION: A control panel which is installed inside a hoistway 10 together with a hoist 2 and in which a main circuit driving the hoist 2 is stored inside a casing including a cover, includes: guide rails 23A, 23B for the control panel erected inside the hoistway 10; and guide shoes 24 slidably engaging with the guide rails 23A, 23B for the control panel, respectively. The control panel is guided by the guide shoes 24 to move along the guide rails 23A, 23B for the control panel, and is fixed to prescribed positions of the guide rails 23A, 23B for the control panel by clamps 25 in the guide shoes 24, respectively.

Description

  The present invention relates to an elevator control panel movable within a hoistway, an elevator using the same, and a maintenance method for the elevator control panel.

  A so-called machine room-less elevator in which a hoisting machine and a control panel for storing a main circuit for driving the hoisting machine are provided in a hoistway has become widespread. Since the control panel of the machine room-less elevator is usually attached to the inner wall of the hoistway, the thickness and width are reduced and the vertical dimension is increased so as not to interfere with other equipment such as a car. For this reason, operations such as loading, unloading, and installation of the control panel become difficult, and the efficiency of these operations is reduced.

  As a technique for facilitating the above-described work and improving work efficiency, a technique described in Patent Document 1 is known. In the present technology, the vertically long control panel is divided into two upper and lower units, and both units are connected to each other so as to be rotatable. As a result, the vertically long control panel can be folded into two so as to facilitate carrying-in and carrying-out operations.

JP 2010-42881 A

  In the above prior art, the operation of carrying in and out of the control panel becomes easy, but the maintenance work in the hoistway is not taken into consideration.

  During maintenance work, it is necessary to open the cover of the control panel in order to check or repair circuit components in the control panel. For this reason, if the equipment installed in the hoistway including the car and the cover interfere with each other, the operation becomes difficult. In particular, if the two-story floor is low and the floor height is low, such as in a parking lot, even if the car is stopped on the upper floor, the control panel cover and the equipment under the car interfere with each other, and maintenance of the control panel is not possible. It becomes difficult.

  Therefore, the present invention provides an elevator control panel capable of preventing interference between the cover of the control panel and equipment in the hoistway during maintenance work, an elevator using the elevator control panel, and an elevator control panel maintenance method.

  In order to solve the above-described problems, an elevator control panel according to the present invention is installed in a hoistway together with a hoisting machine, and a main circuit for driving the hoisting machine is stored in a housing having a cover. And a guide shoe provided in the housing and slidably engaged with the guide rail, the guide rail being guided by the guide shoe. And is fixed to a predetermined position of the guide rail by clamp means provided on the guide shoe.

  The elevator according to the present invention includes a car that moves up and down in a hoistway, a car lower pulley provided in a lower part of the car, a hoist installed in the hoistway, and a housing provided with a cover. A control board in which a main circuit for driving the hoisting machine is stored, a rope wound around the car lower pulley and suspending the car, and a rope wound around a sheave included in the hoisting machine, The elevator car is driven by the control board, and the rope is driven by the sheave to raise and lower the hoistway, and the control board is the elevator control board according to the present invention. It is.

  Furthermore, the elevator control panel maintenance method according to the present invention is installed in a hoistway together with a hoisting machine, and the elevator control panel maintenance method in which a main circuit for driving the hoisting machine is housed in a housing having a cover. In a normal installation position, the bolt fastening between the housing and the guide rail is released, then the clamp between the housing and the guide rail is released, and then guided by the guide rail, The elevator control panel is moved to a lower maintenance work position along the guide rail, and after clamping the housing to the guide rail at the maintenance work position, the housing and the guide rail are bolted. .

  The control panel according to the present invention moves along the guide rail and can be easily fixed by the clamping means, so that maintenance work can be performed at a position where the cover of the control panel does not interfere with the elevator equipment. For this reason, the maintenance work of the control panel is facilitated, and the work efficiency is improved.

  Further, according to the elevator according to the present invention, the cover of the control panel interferes with the pulley under the car and its support member when applied to the elevator control panel according to the present invention as the control panel installed in the hoistway. Maintenance work becomes possible. For this reason, the maintenance work of an elevator becomes easy and work efficiency improves.

  Further, according to the maintenance method of the present invention, it is possible to perform maintenance at a position where the cover of the control panel does not interfere with the elevator equipment by moving from the normal installation position of the control panel. Further, the bolt is fastened and released while being easily supported by the clamp. Therefore, the maintenance work of the control panel is facilitated and the work efficiency is improved.

  Problems, configurations, and effects other than those described above will become apparent from the following description of embodiments.

The machine room less elevator which is one Embodiment of this invention is shown. The control panel mounting configuration is shown. The clamp provided in the guide shoe for control boards is shown. The bolt fastening state of the guide shoe and the control panel guide rail is shown. The machine room less elevator which is other embodiment of this invention is shown.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a cross-sectional view in a hoistway of a machine room-less elevator according to an embodiment of the present invention, and shows the arrangement of elevator equipment in the hoistway.

  In the present embodiment, the hoisting machine 2 and a control panel 21 that supplies electric power for driving the motor of the hoisting machine 2 are installed in the hoistway 10. The control panel 21 stores a main circuit, for example, an inverter circuit, for supplying electric power to the motor in a housing having an openable / closable cover. The hoisting machine 2 is installed between one side of the car 1 and the inner wall of the hoistway facing the car 1, and the control panel 21 includes a side opposite to the one side of the car 1, and Installed between opposing hoistway inner walls. Moreover, the counterweight 3 is installed between the back surface of the passenger car 1 and the hoistway inner wall facing this. A car lower pulley 4 is provided at the lower part of the car floor 2 of the car 1. The car 1 is suspended by a rope (not shown) wound around the car lower pulley 4.

  When electric power is supplied from the control panel 21, the sheave of the hoisting machine 2 rotates, and when a rope (not shown) wound around the sheave and the car lower pulley 4 is driven, the car 1 moves inside the hoistway 10. Go up and down. At that time, the car 1 is guided by the car guide rail 5 having a T-shaped cross section and moves in the hoistway 10. Further, the counterweight 3 also moves in the hoistway 10 while being guided by the weight guide rail 6 having a T-shaped cross section. A car door 12 is provided in front of the landing side of the car 1, and when the car 1 arrives at the landing and stops, the car door 12 and the landing door 11 are engaged and opened and closed simultaneously. The car 1 and the counterweight 3 are provided with guide shoes that are slidably engaged with the respective guide rails, but are not shown in the figure for simplicity.

  The control panel 21 is attached to two control panel guide rails 23A and 23B supported by a rail bracket 22 attached to one of the two car guide rails 5. The rail bracket 22 has a surface parallel to the side surface of the car 1, a portion 22A fixed to the car guide rail 5, and a surface parallel to the same side surface of the car 1 and a control rail guide rail 23A. , 23B is included. The rail bracket 22 is formed by bending a belt-shaped flat plate member in the vicinity of the center portion along the longitudinal direction, and the portion 22B is located closer to the inner wall of the hoistway than the portion 22A. A surface of the portion 22A of the rail bracket 22 that faces the side surface of the car 1 is attached to the car guide rail 5. The control panel guide rail 23 is supported on the back surface of the surface of the portion 22B of the rail bracket 22 that faces the side surface of the car 1.

  A guide shoe 24 slidably engaged with the control panel guide rails 23 </ b> A and 23 </ b> B is provided on the flange portion of the casing of the control panel 21. As will be described later (see FIGS. 3 and 4), the guide shoe 24 and the control panel guide rails 23A and 23B are bolted and clamped by a clamp mechanism. Thereby, the control panel 21 is fixed to the normal installation position in the hoistway and the movement position at the time of maintenance work.

  FIG. 2 shows the mounting structure of the control panel 21 as viewed from the right side of the hoistway inner wall side toward the car door 12 as viewed from the landing side, that is, from the hoistway inner wall side facing the control panel 21. In this figure, the position of the control panel 21 is the normal installation position, that is, the installation position when the elevator is operating.

  The control panel guide rails 23A and 23B and the car guide rail 5 to which the control panel 21 is attached are erected and fixed on a support portion 31 provided at the bottom 30 of the pit. In FIG. 2, a part of each guide rail is illustrated, but the car guide rail 5 extends in a range in which the car is raised and lowered, and the control panel guide rail is a normal installation of the control panel 21. It extends in the movable range of the control panel 21 from the position to the fixed position during maintenance work.

  Two guide shoes 24 are provided at each corner, that is, at the upper and lower ends of the casing of the control panel 21. Two guide shoes 24 provided at the upper and lower ends of one long side portion of the housing are slidably engaged with one of the two control panel guide rails 23A and 23B. . Further, the two guide shoes 24 provided at the upper and lower ends of the other long side portion of the casing are slidably engaged with the other guide rail 23B for the control panel. In addition, it becomes a case where the clamp and bolt fastening mentioned later are cancelled | released that it can slide.

  In the present embodiment, the two rail brackets 22 pass through the back of the control panel at the normal installation position of the control panel, but the number is appropriately set according to the strength for supporting the guide rail.

  FIG. 3 shows a clamp mechanism provided in the guide shoe 24 for the control panel. This figure and FIG. 4 described later show the guide shoe on the control panel guide rail 23A side, but the same applies to the guide shoe on the control panel guide rail 23B side.

  A clamp 25 is provided at an end portion of the guide shoe 24 along the longitudinal direction of the control rail 23A for the control panel. When the lever 26 of the clamp 25 is operated, the pin 27 protrudes toward the sliding surface of the control panel guide rail 23A. When the pin 27 is engaged with the recess of the control panel guide rail 23A on the sliding surface, the control panel 21 is fixed at the position where the recess is provided. However, since it can be easily fitted and released by operating the lever 26, the fixing of the control panel by the clamp is provisionally simpler than the bolt fastening described later.

  FIG. 4 is a cross-sectional view showing a bolt fastening state between the guide shoe 24 and the control panel guide rail 23A. In this figure, the illustration of the clamp 25 shown in FIG. 3 is omitted. As shown in FIG. 4, a bolt 28 is passed through a hole for fastening a bolt provided in the guide shoe 24 and a hole passing through the sliding portion of the guide rail 23A for the control panel. Tighten with screws. As a result, the guide shoe 24 and the control panel guide rail 23A are bolted together, and the control panel 21 is securely fixed to the normal installation position of the control panel guide rails 23A and 23B and the moving position during maintenance work.

  Next, the movement of the control panel 21 during maintenance work will be described.

  First, in the normal installation position as shown in FIG. 2, the control panel 21 is fixed to the control panel guide rails 23A and 23B by the clamp and bolt fastening as described above. At the time of maintenance work, first, the bolt fastening is released while supporting the control panel 21 so that the control panel 21 does not fall down by a support tool or a support method for maintenance work. Next, while maintaining the engagement between the guide shoe 24 and the control panel guide rails 23A and 23B, the clamp is released and the guide shoe 24 is slid with respect to the control panel guide rails 23A and 23B. The control panel 21 is lowered to the maintenance work position along the control panel guide rails 23A and 23B. At the maintenance work position, first, the control panel 21 is simply temporarily fixed to the control panel guide rails 23A and 23B by clamping, and then securely fixed by bolt fastening. In the normal installation position and maintenance work position of the control panel 21, the sliding part of the control panel guide rails 23A and 23B is provided with the above-described concave part for clamping and the hole for fastening the bolt.

  When the maintenance work is completed, the bolt fastening is first released at the maintenance work position. Next, while maintaining the engagement between the guide shoe 24 and the control panel guide rails 23A and 23B, the clamp is released and the guide shoe 24 is slid with respect to the control panel guide rails 23A and 23B. The control panel 21 is raised to the normal installation position along the control panel guide rails 23A and 23B. At this time, similarly to when the control panel 21 is lowered, the control panel 21 is supported so as not to fall down. In the normal installation position, first, the control panel 21 is temporarily fixed to the control panel guide rails 23A and 23B by clamps, and then securely fixed by bolt fastening.

  In this way, in maintenance work, the bolts are first released before the clamps are moved to move the control panel, or the clamps are released first, and the bolts are tightened after being temporarily fixed by the clamps in order to fix the control panel. That is, since the bolt fastening and the releasing operation are performed in a state where the control panel is simply supported by the clamp, the operation of fixing and releasing the control panel is facilitated, and the working efficiency can be improved. Further, when the control panel is moved, the control panel is guided along the guide rail for the control panel by the guide shoe, so that the control panel can be easily moved and work efficiency is improved. In addition, the fixing strength of the control panel is improved by using both the clamp and the bolt fastening.

  In addition, according to this embodiment, the control panel can be easily lowered to the maintenance work position close to the bottom of the pit, so that when the control panel cover is opened, interference between the cover and elevator equipment such as equipment under the car is prevented. Therefore, maintenance work of the control panel becomes easy.

  FIG. 5 shows a configuration in a vertical direction of a hoistway of a machine room-less elevator that is another embodiment of the present invention. In addition, the elevator of this embodiment has a low floor height on the second floor and includes a bidirectional door. The car door is not shown.

  In FIG. 5, the elevator control panel is divided into a control panel 21A installed at a position close to the upper floor and a control panel 21B installed at a position close to the lower floor. When maintaining the upper control panel 21A, the car 1 is lowered to the lower floor, and then the upper floor landing door 11A and a car door (not shown) are opened, and maintenance personnel get on the car for maintenance work. Do. Therefore, even if the cover of the control panel 21A is opened, the cover and the elevator device do not interfere with each other, so that the control panel 21A remains fixed at the normal installation position even during maintenance. For this reason, the control panel 21A does not have the guide shoe as in the above embodiment.

  On the other hand, with respect to the control panel 21B, even when the car 1 is stopped on the upper floor during maintenance, if the cover of the control panel 21B is opened at the normal installation position indicated by the solid line in the figure, the cover becomes an elevator device, Interferes with the lower pulley 4. Therefore, the control panel 21B has a configuration that can be moved to a lower maintenance work position near the bottom 30 of the pit, as indicated by a broken line in the drawing, by the guide shoe and the guide rail for the control panel, as in the above-described embodiment. . As a result, interference between the cover of the control panel and the elevator equipment including the car lower pulley is prevented, thereby facilitating maintenance work.

  In FIG. 5, a support member for attaching the car lower pulley 4 to the car 1, for example, a pulley beam is not shown. According to this embodiment, including such a support member, interference between the elevator apparatus provided under the car and the cover of the control panel can be prevented.

  In addition, this invention is not limited to embodiment mentioned above, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

  For example, the present invention can also be applied to a machine room-less elevator in which a car is suspended by a rope fixed to the upper part of the car without providing a car lower pulley.

  In addition, the clamp mounting position and the bolt fastening position in the guide shoe can be appropriately changed in consideration of workability. Further, the clamping mechanism may be a mechanism that simply inserts and removes a pin.

1 ... Riding car, 2 ... Hoisting machine, 3 ... Balance weight, 4 ... Pulley under car,
5 ... guide rail for car, 6 ... guide rail for weight, 7 ... car floor, 10 ... hoistway,
11, 11A, 11B ... landing doors, 12 ... car doors,
21, 21A, 21B ... control panel, 22 ... rail bracket,
23A, 23B ... guide rail for control panel, 24 ... guide shoe, 25 ... clamp,
26 ... Lever, 27 ... Pin, 28 ... Bolt, 29 ... Nut,
30 ... Bottom of pit, 31 ... Supporting part

Claims (5)

In an elevator control panel that is installed in a hoistway together with a hoisting machine, and a main circuit that drives the hoisting machine is stored in a housing having a cover,
A guide rail standing in the hoistway;
A guide shoe provided on the housing and slidably engaged with the guide rail;
With
Guided by the guide shoe and moved along the guide rail,
Being fixed to a predetermined position of the guide rail by a clamping means provided on the guide shoe;
Elevator control panel characterized by In the elevator control panel according to claim 1,
The elevator control panel, wherein the guide shoe is bolted to the guide rail at the predetermined position. A car that goes up and down in the hoistway,
A car lower pulley provided at a lower portion of the car;
A hoist installed in the hoistway;
A control panel in which a main circuit for driving the hoisting machine is stored in a housing having a cover;
A rope that is wound around a pulley under the car and suspends the car, and is wrapped around a sheave included in the hoisting machine;
With
The car is moved up and down in the hoistway by the hoisting machine being driven by the control panel and the rope being driven by the sheave.
In the elevator,
The said control panel is an elevator control panel of Claim 1 or Claim 2, The elevator characterized by the above-mentioned. A car that goes up and down in the hoistway,
A car lower pulley provided at a lower portion of the car;
A hoist installed in the hoistway;
A control panel in which a main circuit for driving the hoisting machine is stored in a housing having a cover;
A rope that is wound around a pulley under the car and suspends the car, and is wrapped around a sheave included in the hoisting machine;
With
The car is moved up and down in the hoistway by the hoisting machine being driven by the control panel and the rope being driven by the sheave.
In the elevator,
The car is moved up and down between the upper and lower two floors and has a car door and a landing door in both directions of the car. The elevator is divided into a second control panel installed on the side, and the second control panel is the elevator control panel according to claim 1 or 2. In the maintenance method of the elevator control panel, which is installed in the hoistway together with the hoisting machine, and the main circuit for driving the hoisting machine is housed in a housing having a cover,
In the normal installation position, release the bolt fastening between the housing and the guide rail,
Next, release the clamp between the housing and the guide rail,
Then, while guiding by the guide rail, move the elevator control panel to the lower maintenance work position along the guide rail,
In the maintenance work position, after clamping the housing to the guide rail, bolting the housing and the guide rail;
An elevator control panel maintenance method.

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