KR20060028004A - Apparatus for detecting position of elevator car - Google Patents

Abstract

The present invention relates to a device for detecting the position of an elevator car, and more particularly, to accurately match the bottom of the elevator hall and the bottom of the elevator car when the elevator car stops, and in a simpler way It relates to a position detection device of the elevator car that can be installed in. The elevator car position detection device according to the present invention which can grasp the alignment position of the elevator car side seal with respect to the boarding room seal by the reaction member and the sensing member for detecting the reaction member, guides the opening and closing of the boarding side door. One of the reaction member and the sensing member is attached to the cabin side seal, and the other of the reaction member and the sensing member is attached to the elevator car side chamber that guides the opening and closing of the elevator car side door.

Description

Position detection device of elevator car {APPARATUS FOR DETECTING POSITION OF ELEVATOR CAR}

The present invention relates to a device for detecting the position of an elevator car, and more particularly, to accurately match the bottom of the elevator hall and the bottom of the elevator car when the elevator car stops, and in a simpler way It relates to a position detection device of the elevator car that can be installed in.

In general, an elevator is a means of transporting passengers to a predetermined floor of a building using an elevator car that moves the hoistway up and down, where the passenger moves from the elevator car to the platform or from the platform to the elevator car when the elevator car stops on the predetermined floor. do. For the convenience of such a passenger's movement, it is preferable that the bottom of the boarding point and the bottom of the elevator car are aligned side by side when the elevator car is stopped. To this end, the elevator generally includes a position detecting device for detecting the position of the elevator car and an elevator control unit for adjusting, stopping or moving the speed of the elevator car according to a signal generated from the position detecting device. When the elevator car reaches the predetermined boarding point, the elevator control unit detects the exact landing position between the door on the boarding side and the door on the elevator car side by the position detecting device to stop the elevator car.

The technique of detecting the position of the elevator car while driving or stopping and maneuvering is very important to provide accurate and safe transportation service and also to ensure a good ride comfort during starting and braking, and various techniques are used for this purpose. For example, a method of determining the position of an elevator car by moving a steel tape punched at regular intervals with a car over the entire height of the hoistway and detecting the number of movements of the holes, Limit switches and inclined cam plates are additionally installed at the bottom and top of the hoistway to ensure safe operation of the elevator. In addition to this, auxiliary means for estimating the position of the car via an encoder connected to the drive motor is used in parallel.

Instead of the above perforated metal tape, the most recent and most commonly used method is to attach an inductive sensor to the car and to attach a steel vane bracket, ie a shield plate at each location, to a specific location on the guide rail of the hoistway. Thus, the position of the car is detected by the signal of the inductive sensor formed by interacting with the shield plate. Since the shield plate is attached to the guide rail, the corresponding inductive sensor is generally installed on the upper part of the car. In this regard, efforts to reduce the working time and error adjustment time required to install the position detection device-related components including the shielding plate and the induction sensor on each floor, to improve the installation quality and to reduce the material cost have been made in the elevator industry. It's going competitive.

8A to 8C are views schematically showing a conventional elevator car position detecting device installed on the elevator car side and the boarding side.

As shown in FIGS. 8A and 8B, the iron vane bracket 130 is installed in a specific shape on the guide rail 140 at each stop position of each layer, and corresponds to the iron vane bracket 130. The magnetic induction sensor 125 is installed on the upper part of the elevator car. As shown in FIG. 8C, when the bracket 130 installed on the guide rail passes through the center portion of the induction sensor 125 installed on the upper part of the elevator car while the elevator car moves, the induction sensor 125 detects the predetermined signal. And this signal is sent to a control unit (not shown) of the elevator. The control unit reduces the speed of the elevator car based on the signal so as to control the bottom of the elevator car to coincide with the bottom of the board, i.e., the boarding side door and the alligator car side door are correctly implanted.

In the prior art as described above, the shield plate is fixed to the guide rail by a mounting bracket and bolts, such as steel plate, it is very important management item to determine the attachment position of the shield plate for the accurate idea of the elevator car to the boarding.

In order to determine the location of the shielding plate, the worker consists of two sets of workers during the installation of the elevator, one person boards the upper part of the elevator car, pre-assembles the position of the shielding plate, and drives the elevator at low speed. Is in the car or is located in the boarding area and observes whether the elevator car side seal and the boarding room seal are matched to determine whether the elevator car meets the criteria for the concept of precision. Informs you if the correction should be moved. A seal is a member which is provided at the bottom of the elevator car and the bottom of the boarding point and has a predetermined groove for guiding the opening and closing of the door of the elevator and the boarding door. Since it is possible to determine whether the elevator car has been accurately implanted according to whether or not, it serves as a reference point in adjusting the position of the shield plate when installing the elevator.

The prior art as described above is because the guide rail and the upper part of the car, which are the positions where the shield plate and the inductive sensor are respectively attached to detect the car position of the elevator, are largely separated from the elevator car side seal and the boarding side seal, which are the criteria for confirming the accuracy of implantation. However, there is a problem in that installation work is impossible with only one worker because two workers are required at all times, and errors in conception accuracy are likely to occur. In addition, since the position detection device is installed in a trial-and-error manner in which the operator in the upper part of the elevator car in the state where the shield plate has been pre-assembled in advance while driving the elevator, the operation efficiency is inevitably low. As the elevator is continuously used, the shielding plate is used after a certain period of time because deformation of the related parts such as the side plate and the ceiling plate constituting the main body of the elevator car occurs or a change in the alignment position is inevitably caused. There is a problem that needs to be repositioned.

An improved technique is a position detection device for attaching the shield plate to the upper part of the boarding side door instead of the guide rail. (GB 2 166 711 A) Referring to FIG. 9, the shielding plate 130 is the boarding side door 110. It is attached to the upper part and the induction sensor 125 is located above the door 105 of the elevator car 101, so that the worker in the elevator car 101 and the worker at the upper part of the car can cooperate closely, but still One pair work is required. In addition, since the shielding plate 130 and the induction sensor 125 are disposed on the upper portion of the elevator car 101 as in the prior art, the above-mentioned problems cannot be solved.

On the contrary, a method of attaching an elevator car position detection device to a jamb frame has been devised using a proximity sensor principle rather than a conventional shielding plate and an inductive sensor method. That is, the reaction member and the sensing member used for detecting the position of the elevator car are not disposed on the upper part of the elevator car as in the prior art, but are disposed between the door frame of the boarding side door and the elevator car side door. However, this technique can be applied to side open elevators where sufficient attachment space is allowed in the door frames, but center open where sufficient space for placing the reaction and sensing elements in the door frames is not permitted. door) It cannot be used in elevators. In addition, since the reaction member and the sensing member constituting the position detecting device are attached to the door frame which is still spaced apart from the sil, which is still a criterion for judging the accuracy of conception of the elevator car, an error may occur during the installation work. It is necessary to reposition the position detection device due to the variation and deformation of the related parts such as door frames.

The present invention has been made to solve the problems of the prior art, and an object of the present invention is to provide an elevator car in which a position detecting device is attached to a position closest to an elevator car to which landing accuracy should be secured, and a seal on the boarding side, thereby improving the position detecting performance. It is to provide a position detection device. Another object of the present invention is to provide an elevator car position detection device capable of installing the elevator car position detection device by only one worker, and to improve the installation workability by omitting the adjustment work of the position detection device at the installation site. It is also an object of the present invention to provide an elevator car position detection device that can be easily installed without causing a large deformation in an existing component device.

The elevator car position detecting device according to the present invention grasps the alignment position of the elevator car side seal with respect to the cabin side seal by the sensing member and the sensing member for detecting the reaction member. One of the reaction member and the sensing member is attached to the cabin-side seal that guides the opening and closing of the door on the elevator side, and the other of the reaction member and the detection member is attached to the elevator car-side seal that guides the opening and closing of the elevator car side door.

According to one embodiment of the invention, the reaction member is attached to the cabin side seal, and the sensing member is attached to the elevator car side seal.

According to another embodiment of the present invention, the reaction member and the sensing member are attached to the lower surface of the seal.

The reaction member and the sensing member are provided on the sides of the apron of the elevator car and the toguard of the boarding point.

In addition, the reaction member of the position detection device of the elevator car is a magnet member, and the detection member is a hall sensor.

The magnet member includes a bracket extending in the vertical direction and a magnet extending in the vertical direction attached to the bracket.

A plurality of induction coils are arranged in the hall sensor at predetermined intervals, and when the elevator car is raised or lowered, an induction signal for adjusting the speed of the elevator car in the induction coil in the hall sensor is generated by the magnet member.

Further, a groove is formed in at least one of the cabin side seal and the elevator car side seal, a positioning fixing device is attached to the groove, and the reaction member or the sensing member is attached to the chamber by the positioning fixing device.

According to one embodiment of the present invention, the positioning device is composed of bolts.

In addition, the length of the positioning fixing device can be adjusted.

According to another embodiment of the present invention, one of the reaction member and the sensing member is attached to the elevator car side seal that guides the opening and closing of the elevator car side door, and the boarding of the height corresponding to the boarding side seal which guides the opening and closing of the door on the boarding side door. The other of the reaction member and the sensing member is attached to the furnace wall.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is a side view showing the structure of an elevator car with an elevator position detection apparatus according to an embodiment of the present invention. 2 and 3 are enlarged side and enlarged perspective views of the position detection device shown in FIG.

1 to 3, the boarding-side door 10 is opened or closed along the groove 20 'of the boarding-side chamber 20 disposed on the boarding-side bottom, and the door of the elevator car 1 side ( 5) is opened or closed along the groove 15 'of the car side seal 15 disposed at the bottom of the car 1 side. Whether the elevator car 1 is in the correct landing position is judged by whether the boarding room side 20 and the elevator car side chamber 15 are aligned with each other.

The reaction member 30 for detecting whether the elevator car 1 is in the correct conception position, for example the magnet member, and the detection member 25, for example the hall sensor, are respectively mounted on the boarding chamber 20 and the elevator. It is attached to the car side seal 15. In the accompanying drawings, the reaction member 30 and the sensing member 25 are shown to be attached to the lower surface of the seal, but the position may be changed. That is, the reaction member 30 and the sensing member 25 may be attached to the front surface of the seal, or may be attached to the seal end using a bracket. In addition, the reaction member 30 and the sensing member 25 are not limited to the magnet member and the hall sensor.

Referring to FIG. 3, the reaction member 30 and the sensing member 25 are disposed on the side of the to guard 27 and the apron 26. Here, the apron 26 and the toeguard 27 are members provided below the elevator car side seal 15 and the lower side of the elevator side seal 20, respectively, and the elevator door stops when the elevator car is not stopped at the correct landing position. When it is opened, it is a safety member provided to prevent the fall of occupants or objects. In such a case, it is not necessary to process a hole in the to guard 27 and the apron 26 to attach the reaction member 30 and the sensing member 25 to the seal. Moreover, since it is installed in the space where there is no interference between the apron and the toe guard installed in the elevator car side seal and the cabin side seal, more free space utilization is possible.

4 and 5 are views showing the configuration of detecting the position of the elevator car 1 by the action of the magnet member 30 and the hall sensor 25 when the elevator car 1 moves upward.

Referring to Fig. 4, the hall sensor 25 attached to the elevator car side seal 15 includes a plurality of induction coils 25a, 25b, 25c arranged at predetermined intervals in the vertical direction. In FIG. 4, the hall sensor 25 includes three induction coils in the up and down direction, but the number of the induction coils may be variously changed and may be arranged not to be disposed only in the up and down direction but overlapping from side to side. . In the case where the elevator car 1 moves upward, when the elevator car 1 comes close to the landing position (stop position), the induction coil 25a disposed at the top of the hall sensor 25 is first magnet member 30. Is affected by the magnetic field. That is, the induction signal is generated in the induction coil 25a disposed at the top of the hall sensor 25. This guidance signal is transmitted to a control unit (not shown) for adjusting the speed of the elevator car 1, and the control unit gradually decreases the speed of the elevator car 1 so as not to inconvenience passengers by sudden braking. After that, when the boarding side chamber 20 and the elevator car side chamber 15 are aligned, that is, when the elevator car 1 is correctly placed on a desired floor, all of the induction coils 25a disposed in the hall sensor 25 are provided. , 25b, 25c, the guidance signal is generated, the guidance signal is transmitted to the control unit to stop the elevator car (1).

Although not shown, in the case where the elevator car 1 moves downward as in the case where the elevator car 1 moves upwards, the hall sensor 25 is first moved when the elevator car 1 approaches a predetermined desired floor. The induction coil 25c disposed at the bottom is influenced by the magnetic field of the magnet member 30 to generate an induction signal. The control unit gradually reduces the speed of the elevator car 1 based on the signal. When the elevator car 1 reaches the correct conception position, i.e., when all the induction coils 25a, 25b, 25c of the hall sensor 25 generate an induction signal by the magnet member 30, the controller The car 1 is stopped.

In this way, the position detecting device for detecting the position of the elevator car 1, that is, the magnet member 30 and the hall sensor 25 are both the seals 15 and 20 which are reference points for determining whether the elevator car 1 is implanted. Is attached to. Accordingly, since the separation distance between the seal and the position detection device is negligibly shorter than in the prior art in which the position detection device is installed at a position spaced apart from the cabin side seal 20 and the elevator car side seal 15, the ride side Whether the seal 20 and the elevator car side seal 15 are aligned can be detected accurately. Since the position detecting apparatus of the present invention is attached to the seals 15 and 20, which are the criteria for determining whether the elevator is implanted, the elastic deformation is applied to the related parts such as the side plate and the ceiling plate of the main body of the elevator car 1 by using the elevator for a long time. Even if a secular variation occurs, an error does not occur in the position detection of the elevator car 1.

In the present embodiment, the reaction member 30 or the sensing member 25 is attached to the boarding chamber, but may be attached to the wall of the boarding path of the height corresponding to the boarding chamber rather than the boarding chamber, using a bracket or the like. Even if it is understood that the above-mentioned effects can be provided equally.

Next, the installation process of the position detection apparatus of an elevator car is demonstrated.

In order to install the position detection apparatus according to an embodiment of the present invention, the worker first attaches the hall sensor 25 to the elevator car side seal 15. Thereafter, the worker runs the elevator car 1 at a low speed on the upper part of the elevator car 1. When the elevator car 1 approaches the lower part of the boarding area while raising or lowering the elevator car 1, the operator pauses the operation of the elevator car 1 and the boarding room 20 or the boarding room 20. The magnet member 30 is installed in the wall surface of the boarding path of the same height. Since the magnet member 30 and the hall sensor 25 are attached at fixed positions of the cabin side seal 20 and the elevator car side seal 15, respectively, the operator can attach the magnet member 30 and the hall sensor 25 to each other. It is not necessary to align the boarding-side seal 20 and the car-side seal 15 with each other, and it is not necessary to go through the operation of adjusting the attachment position of each member. That is, in the prior art, the position of the shielding plate 130 has to be adjusted in a state where the elevator car side seal 115 is aligned with the boarding side seal 120, but the magnet member 30 and the hall sensor 25 according to the present invention. When installing the do not need to consider whether the alignment of the threads (20, 15). Therefore, it is not necessary for the elevator car 1 to check whether the passenger compartment 20 and the car-side seal 15 coincide with each other during the installation work, so that the installation work of the position detection device is performed by one worker. Can be performed by

In addition, when the position detection device is initially installed, a trial-and-error method in which the elevator car is operated at a low speed while the position detection device is temporarily assembled, readjusts the attachment position of the position detection device according to the alignment of the seals 20 and 15, and attaches the position detection device. Since the magnet member 30 and the hall sensor 25 are directly attached to the boarding side chamber 20 and the elevator car side chamber 15 without passing through, the position detection apparatus can be installed more easily.

FIG. 6 is a perspective view of the magnet member 30 attached to the boarding side seal 20, and FIG. 7 is a perspective view of the "L" shaped magnet bracket 32 constituting the magnet member 30. As shown in FIG.

6 and 7, the magnet member 30 extends in the vertical direction along the “L” shaped bracket 32 and the magnet bracket 32 extending in the vertical direction in which the groove 32 ′ is formed at the center thereof. It is composed of a magnet 31. Since the magnet 31 is magnetic, it can be easily attached to the longitudinal grooves 32 'of the bracket 32 without the use of other fastening devices. A groove is formed in the cabin side seal 20 or the elevator car side seal 15, and a positioning fixing device 18 for determining the position of the magnet member 30 or the hall sensor 25 is fixed to the groove. Therefore, the worker can easily attach the magnet member 30 or the hall sensor 25 to the boarding chamber 20 or the elevator car chamber 15 using the positioning fixing device 18, respectively. 2) Bolts are mainly used as the positioning fixing device 18, but other fixing devices may be used. Since the attachment position of the magnet member 30 and the hall sensor 25 is determined by the positioning fixing device 18 which is already fixed to the seals 20 and 15, the operator at the time of installation of the elevator position detecting device has a magnet. The member 30 and the hall sensor 25 may be brought into close contact with the positioning fixing device 18, and only a simple fixing operation may be performed. Thereby, it is not necessary to attach the magnet member 30 and the hall sensor 25 by separate position adjustment work.

In addition, the positioning fixing device includes a sensing member attached to the elevator car side seal and the cabin side seal and an adjustment member for adjusting the position of the reaction member, so that an error occurs on the elevator car and a correction is necessary. Fine errors in the attachment position of the reaction member can be easily corrected.

As described in detail above, the elevator car position detecting apparatus according to the present invention attaches a reaction member and a sensing member for detecting the reaction member to the cabin side seal and the elevator car side seal, respectively, to align the elevator car side seal with respect to the cabin side seal. By identifying the position, it is possible to more accurately detect whether the elevator car is implanted, and error in position detection even if variation factors such as deformation of the components of the elevator car or change of alignment position occur due to long-term use of the elevator. Does not occur.

When installing the position detection device, it can be installed by a single worker, and the position detection device can be installed more simply because there is no need to go through a trial and error method of adjusting the position while testing the elevator while the reaction member is pre-assembled. have. Moreover, since the magnet member or the hall sensor is attached by the positioning fixing device attached to the groove formed in the seal, the position detecting device can be installed more easily, and the positioning device is adjusted by adjusting the length of the positioning fixing device. When a small error of the can be easily corrected.

1 is a side view of an elevator car and a board with a position detecting device of an elevator car according to an embodiment of the present invention;

2 is an enlarged side view of an elevator car position detection device according to a temporary embodiment of the present invention;

3 is an enlarged perspective view of an elevator car position detection apparatus according to an embodiment of the present invention;

Figure 4 is a side view showing the operating state of the elevator car position detection apparatus according to an embodiment of the present invention,

5 is a side view showing an operating state of the elevator car position detection apparatus according to an embodiment of the present invention;

6 is a perspective view of the magnet member of the elevator car position detecting apparatus according to the embodiment of the present invention attached to the cabin side seal;

7 is a perspective view of a magnet bracket of an elevator car position detection apparatus according to an embodiment of the present invention;

8A is a view showing a shield plate of a conventional elevator car position detecting device attached to a guide rail for guiding an elevator car;

8B is a perspective view of an induction sensor of a conventional elevator car position detecting device attached to an upper portion of an elevator car;

8C is a perspective view of a shield plate and an induction sensor of a conventional elevator car position detecting apparatus; and

9 is a side view of an elevator car provided with a conventional elevator car position detection device.

Claims (11)

It is a position detection apparatus of the elevator car which can grasp | ascertain the alignment position of the elevator car side chamber with respect to a boarding side chamber by a reaction member and the sensing member for detecting the said reaction member, One of the reaction member and the sensing member is attached to the boarding side seal for guiding the opening and closing of the boarding side door, An elevator car position detection device, wherein the other of the reaction member and the sensing member is attached to an elevator car side seal that guides the opening and closing of the elevator car side door. The elevator car position detection apparatus according to claim 1, wherein the reaction member is attached to the cabin side seal, and the sensing member is attached to the elevator car side seal. The elevator car position detection device according to claim 1 or 2, wherein the reaction member and the sensing member attached to the elevator car side seal or the cabin side seal are attached to the lower surface of the seal. The reaction member and the sensing member attached to the elevator car side seal or the cabin side seal are located on the side of the apron attached to the lower part of the elevator car side seal and the toeguard attached to the lower side of the lift side seal. Device for detecting position of elevator car. The elevator car position detection device according to claim 1 or 2, wherein the reaction member is a magnet member and the sensing member is a hall sensor. The apparatus of claim 5, wherein the magnet member comprises a bracket extending in a vertical direction and a magnet extending in a vertical direction attached to the bracket. The method of claim 5, wherein a plurality of induction coils are arranged in the hall sensor at predetermined intervals, and when the elevator car is raised or lowered, an induction signal for adjusting the speed of the elevator car in the induction coil in the hall sensor by a magnet member is provided. An elevator car position detection device. The positioning device according to claim 1 or 2, wherein a groove is formed in at least one of the cabin-side seal and the elevator car-side seal, a positioning fixing device is attached to the groove, and the reaction member or the sensing member is a positioning fixing device. The position detecting device of the elevator car attached to the seal by the. 9. The position detecting device of an elevator car according to claim 8, wherein the fixing device for positioning is a bolt. 9. The position detecting device of an elevator car according to claim 8, wherein the fixing device for positioning includes an adjusting member capable of adjusting an attachment position of a reaction member or a sensing member. It is a position detection apparatus of the elevator car which can grasp | ascertain the alignment position of the elevator car side chamber with respect to a boarding side chamber by a reaction member and the sensing member for detecting the said reaction member, One of the reaction member and the sensing member is attached to the elevator car side seal that guides the opening and closing of the elevator car side door, An elevator car position detection device, wherein the other of the reaction member and the sensing member is attached to a wall of a boarding path having a height corresponding to the boarding side seal for guiding opening and closing of the boarding side door.