JP2014012585A - On-car getting-on position detection device of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve accuracy in detecting an on-car getting-on position.SOLUTION: An on-car getting-on position detection device 1 of an elevator 10 includes a car position detection sensor 2, a member 3 to be detected and a notifying device 45a. The car position detection sensor 2 is provided on an outer wall surface of a car 20 vertically moving in a hoistway R1. The member 3 to be detected is provided at a hall sill 53 in the hoistway R1. The notifying device 45a produces notification sound to notify that an on-car getting-on position of the car 20 in relation to a floor surface 52 of an elevator hall H reaches a prescribed position suitable for a worker to get on an on-car 22a of the car 20 when the car position detection sensor 2 detects the member 3 to be detected.

Description

  Embodiments of the present invention relate to an elevator onboard position detection apparatus for use in positioning at the time of adjusting a boarding position on a car.

  In an elevator, for example, various hoistway devices are attached to the wall surface of the hoistway, and maintenance and inspection work for the hoistway device is performed. The maintenance inspection work is carried out by adjusting the position of the car and by an operator getting on the top surface of the ceiling of the car from the elevator hall. For this reason, conventionally, an operator confirms the position of the car by pulse marking, or adjusts the boarding position on the car by operating the car boarding position adjusting device. The on-car entry position adjusting device is disclosed in, for example, Patent Document 1 below, and adjusts the entry position on the car when an operator presses a predetermined switch.

JP 2001-163540 A

  By the way, when the position of the car cannot be confirmed by the pulse marking, or when the boarding position on the car is shifted when trying to board, the operator relies on experience and intuition to adjust the boarding position on the car. Or board the vehicle while it is displaced. Therefore, in the elevator, the position of the car in the hoistway, in particular from the elevator hall, is adjusted regardless of whether the car boarding position is adjusted by the operator's experience or the like. The accuracy of detection of the car entry position is required.

  The problem to be solved by the present invention is to provide an elevator car entry position detection device capable of improving the accuracy of car entry position detection.

  The elevator boarding position detection device of the embodiment includes a car position detection sensor, a member to be detected, and a notification device. The car position detection sensor is provided on the outer wall surface of the car that moves up and down in the hoistway. The member to be detected is provided on the hole sill in the hoistway. When the car position detection sensor detects the member to be detected, the alarm device is suitable for an operator to get on the car of the car with the car boarding position on the floor of the elevator hall. A notification sound is emitted when the predetermined position is reached.

FIG. 1 is a front view showing an outline of the overall configuration of an embodiment of an elevator and a car entry position detecting device for the elevator. FIG. 2 is a cross-sectional view of the elevator according to the embodiment of FIG. 1 and the elevator boarding position detection device as viewed from the side. FIG. 3 is a perspective view of the elevator car entry position detection device of the embodiment of FIG. 1 as seen from inside the hoistway. FIG. 4 is a front view showing a detection state of an on-car entry position by the elevator on-board position detection device of the embodiment of FIG. 1.

  Hereinafter, an embodiment of an elevator car entry position detection device (hereinafter also simply referred to as “position detection device”) will be described in detail with reference to the drawings.

[Embodiment]
The position detection apparatus of this embodiment is demonstrated based on FIGS. 1-4 with the elevator to which the said position detection apparatus is applied. In each figure, the code | symbol 1 shows the position detection apparatus of this embodiment, and the code | symbol 10 shows an elevator. 1 and 4 are views of the position detection device 1 and the elevator 10 viewed from the front (the elevator hall H side), and FIG. 2 is a view of the position detection device 1 and the elevator 10 viewed from the side. FIG. 3 is a perspective view of the position detection device 1 as seen from inside the hoistway R1.

  First, the elevator 10 will be briefly described. The elevator 10 includes a car 20, a counterweight 30, and a driving device 40. The car 20 and the counterweight 30 are disposed in the hoistway R1. The driving device 40 is disposed in a machine room R2 provided above the hoistway R1.

  The car 20 includes car-side doors 21L and 21R on the front. The car 20 is supported by a car frame (not shown), and is guided vertically in the hoistway R1 by a guide rail (not shown) through the car frame.

  In the counterweight 30, a weight member 31 is held by a frame 32, and the inside of the hoistway R1 is guided in the vertical direction by a guide rail (not shown) through the frame 32. The counterweight 30 moves up and down on the back side of the car 20 and along the rear wall surface of the hoistway R1.

  The driving device 40 is a so-called hoisting machine that moves the car 20 up and down in the hoistway R1. The drive device 40 includes a main sheave 41 and a motor 42 that rotationally drives the main sheave 41. A main rope 43 is wound around the main sheave 41. The main rope 43 has one end attached to the car 20 and the other end attached to the counterweight 30. One end of the main rope 43 is attached to a connecting portion 23 disposed on an upper surface (hereinafter referred to as “car upper”) 22 a of the ceiling portion 22 of the car 20. The car 20 moves up and down by rotating the motor 42 forward or backward. The drive device 40 is controlled by a control device 44 disposed in the machine room R2. The control device 44 controls the entire elevator 10.

  Here, the operator opens the hall doors 51L and 51R of the elevator hall H, gets into the car top 22a, and performs maintenance and inspection of various hoistway devices (not shown) attached to the wall surface of the hoistway R1, for example. Do work. When starting the maintenance inspection work, the operator, for example, controls the drive device 40 to the control device 44 in order to adjust the vertical position of the car top 22a with respect to the floor 52 of the elevator hall H (the car boarding position) to a predetermined position. Is controlled to adjust the stop position of the car 20 in the hoistway R1. The predetermined position is a position where an operator can secure safety when getting into the car top 22a from the elevator hall H, and may have a width in the vertical direction as long as safety is ensured. For example, the predetermined position is such that the floor surface 52 of the elevator hall H and the car top 22a are flush with each other, and the safety of the operator when getting into the reference position is ensured and easy. Provide a width in the vertical direction within the range that can be boarded. For this reason, the elevator 10 is provided with an on-car position detection device 1 that detects an on-car position.

  In the position detection device 1, the car position detection sensor 2 is provided on either the outer wall surface of the car 20 or the inner wall surface of the hoistway R1. As the car position detection sensor 2, for example, a sensor such as an infrared sensor that can detect the presence of the object (hereinafter referred to as “detected member”) 3 by blocking the irradiated light beam such as infrared rays. Is used. The detected member 3 is disposed on the inner wall surface of the hoistway R1 if the car position detection sensor 2 is disposed on the outer wall surface of the car 20, and the car position detection sensor 2 is disposed on the inner surface of the hoistway R1. If it is disposed on the wall surface, it is disposed on the outer wall surface of the car 20. In this position detection device 1, when the detected member 3 blocks the light beam irradiated by the car position detection sensor 2 and the car position detection sensor 2 detects the presence of the detected member 3, the elevator hall H It is detected that the onboard position of the car relative to the floor 52 has reached a predetermined position.

  When the car position detection sensor 2 or the detected member 3 is disposed on the outer wall surface of the car 20, the car position detection sensor 2 or the detected member 3 is located on the left or right side of the ceiling portion 22 of the car 20. To be provided. That is, in this case, the car position detection sensor 2 or the member to be detected 3 is disposed between the side wall surface of the ceiling portion 22 of the car 20 and the inner wall surface of the hoistway R1. In this case, the car position detection sensor 2 or the detected member 3 is attached to the side surface of the ceiling portion 22 via the support member 4.

  Further, when the car position detection sensor 2 or the detected member 3 is disposed on the inner wall surface of the hoistway R1, the car position detection sensor 2 or the detected member 3 is a floor of the elevator hall H on the inner wall surface of the hoistway R1. It is provided at the same vertical position as the surface 52. The car position detection sensor 2 or the member to be detected 3 in this case is attached to the inner wall surface of the hoistway R1 via the support member 5. The car position detection sensor 2 or the member to be detected 3 provided on the inner wall surface of the hoistway R1 is arranged on each floor if maintenance inspection work is required on the car top 22a on each floor, and on the car top 22a on a specific floor. If maintenance work is required, install on a specific floor.

  Specifically, it is desirable that the car position detection sensor 2 and the member to be detected 3 are arranged at locations where the distance between the outer wall surface of the car 20 and the inner wall surface of the hoistway R1 is close. For this reason, here, one of the car position detection sensor 2 and the member to be detected 3 is arranged on either the left or right side of the ceiling portion 22 of the car 20 and on the front side (the elevator hall H side). The other is disposed on the hole sill 53 in the hoistway R1. The hall sill 53 is disposed below the hall doors 51L and 51R on the floor 52 of the elevator hall H, and is a member for smooth opening and closing of the hall doors 51L and 51R. The hall sill 53 extends from the lower side of the hall doors 51L and 51R toward the left and right sides of the hoistway R1. The car position detection sensor 2 or the member to be detected 3 is an extended portion of the hole sill 53, and is attached to a place that does not interfere with the opened hall doors 51L and 51R.

  In this example, the car position detection sensor 2 is disposed on the car 20 side, and the detected member 3 is disposed on the hoistway R1 side.

  As shown in FIG. 3, the car position detection sensor 2 used here is formed in a U-shape, and includes a light beam irradiation unit 2 a and light receiving units 2 b that receive the light beam at protruding portions at both ends thereof. The car position detection sensor 2 is arranged so that a U-shape can be recognized when viewed from the top 22 a of the car, and an opening of the U-shape faces the elevator hall H. This car position detection sensor 2 is fixed with a fastening member such as a bolt or a screw, for example, via a support member 4 on either the left or right side of the ceiling portion 22 of the car 20 and on the front side in the arrangement form. To do. The support member 4 is extended from the left or right front side wall surface of the ceiling portion 22 toward the side. The car position detection sensor 2 can pass the detected member 3 between the irradiation unit 2a and the light receiving unit 2b when the car 20 moves up and down due to its shape and arrangement. Here, the sensor code 2c of the car position detection sensor 2 is responsible for supplying power and transmitting a detection signal, and may be bundled together with other codes on the car 22a, for example.

  The member 3 to be detected is attached to the hoistway R1 in a shape and arrangement that allows passage between the irradiation unit 2a and the light receiving unit 2b. For example, the member to be detected 3 shown as an example is a plate-like member, and is arranged so that the thickness direction thereof is parallel to the light irradiation direction of the car position detection sensor 2. The predetermined position of the above-described car boarding position can be adjusted by the length of the detected member 3 in the vertical direction in the hoistway R1. The member 3 to be detected is fixed to the hole sill 53 in the hoistway R <b> 1 via the support member 5. The support member 5 is formed in, for example, a U-shape, and is attached by sandwiching the upper and lower sides of the hole sill 53 from the inside of the hoistway R1 with standing portions standing from both ends of the base portion. Here, the detected member 3 is attached to the wall surface of the base portion of the support member 5 with a fastening member such as a bolt or a screw.

  For example, the worker turns on the inspection switch (not shown) of the control panel 45 of the control device 44 with the hall doors 51L and 51R closed, and decelerates the moving speed of the car 20 in the vertical movement. The control device 44 is provided with a notification device 45a. When the detected member 3 blocks the light beam from the irradiation section 2a as the car 20 moves, the notification device 45a emits a notification sound. Since the operator knows that the boarding position on the car has reached a predetermined position by the notification sound, the operator operates the control panel 45 of the control device 44 to stop the car 20. For example, this worker notifies that to another worker in the elevator hall H. An operator in the elevator hall H opens the hall doors 51L and 51R, gets into the car top 22a, and starts maintenance and inspection work.

  The elevator 10 may be configured such that a worker in the elevator hall H can perform the series of operations. According to this configuration, the maintenance inspection work similar to the above configuration can be performed even in the elevator 10 in which the machine room R2 does not exist.

  As described above, the position detection device 1 according to this embodiment can accurately detect the entry position on the car even when the hall doors 51L and 51R are closed. And this position detection apparatus 1 can stop the cage | basket | car 20 in an exact position by notifying an operator of the exact boarding position on a cage | basket with the alerting sound of the alerting | reporting device 45a. Accordingly, the position detection device 1 ensures the safety when the worker gets into the car top 22a, so that it is possible to obtain the safety and security of the worker and reduce the work load on the worker. Can do.

  In addition, when the worker in the elevator hall H can perform the above-described series of work, the worker can keep the hall doors 51L and 51R at the position on the car by the notification sound of the alarm 45a closed. It is possible to perform confirmation and confirmation of the car entry position by visual inspection after opening the hall doors 51L and 51R. For this reason, the position detection device 1 can perform a double safety check operation, so that greater safety can be ensured.

  The elevator 10 is configured such that when the car position detection sensor 2 detects that the onboard position has reached a predetermined position, the control device 44 automatically stops the car 20 at that position. May be.

  As mentioned above, although embodiment regarding this invention was described, this embodiment is shown as an example and is not intending limiting the range of invention. This embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and the like are included in the scope of the invention and the gist thereof, and are also included in the invention described in the claims and the equivalent scope thereof.

DESCRIPTION OF SYMBOLS 1 Car entrance position detection apparatus 2 Car position detection sensor 3 Detected member 4 Support member 5 Support member 10 Elevator 21L, 21R Car side door 22a Car top 22 Ceiling part 30 Counterweight 40 Drive unit 45a Alarm 51L, 51R Hall door 52 Floor 53 Whole sill H Elevator hall R1 Hoistway R2 Machine room

Claims (2)

A car position detection sensor provided on the outer wall surface of the car moving up and down in the hoistway;
A detected member provided on a hole sill in the hoistway;
When the car position detection sensor detects the member to be detected, the position of the car on the elevator hall with respect to the floor of the elevator hall is set to a predetermined position suitable for an operator to get on the car. An alarm that emits a notification sound when it reaches,
An elevator boarding position detection device characterized by comprising: A car position detection sensor provided on a hall sill in the hoistway; a detected member provided on an outer wall surface of a car that moves up and down in the hoistway;
When the car position detection sensor detects the member to be detected, the position of the car on the elevator hall with respect to the floor of the elevator hall is set to a predetermined position suitable for an operator to get on the car. An alarm that emits a notification sound when it reaches,
An elevator boarding position detection device characterized by comprising:

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