JPH10182027A - Attitude detector for elevator car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automate checking work, which is carried out visually by a maintenance worker in a conventional way, for alignment such as a clearance dimension and an attitude of an elevator car. SOLUTION: In a detector 20, one light emitting element 22 and two light receiving elements 23, 24 are opposedly arranged in the diagonal direction on a horizontal plane and paired with each other, while one light emitting element 25 and two light receiving elements 26, 27 are opposedly arranged in the diagonal direction on a horizontal plane and paired with each other, and these pairs are arranged symmetrically so that the optical axes between the light emitting elements 22, 25 and the light receiving elements 23, 24, 26, 27 cross each other. In the space in which respective optical axes cross each other, a detection plate 12 arranged in an elevator elevation path close to a landing is passed, and at the same time, display devices matching with the respective light receiving elements are arranged. In this way, an acting condition, which is varied according to the relative position between each light receiving element and the detection plate 12, of each light receiving element is displayed in the display devices, so that an attitude or alignment of an elevator car can be detected with ease.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator apparatus installed in a building such as a building or a house, and more particularly, to an elevator car posture at the time of landing, a street core, and the like for an elevator car hoistway wall. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator car attitude detecting device capable of easily confirming whether or not a gap has a predetermined size.

[0002]

2. Description of the Related Art Elevator devices are indispensable for medium and high-rise buildings as means for moving people and luggage. In addition, recently, with the rise of three-storey homes for two or three households,
As a consideration for aging residents, the number of cases where elevators are installed in ordinary houses has increased.

[0003] In order to maintain the safety of the elevator device, various safety devices are provided. However, the safety device is not limited to the equipment, and there is a step between the floor of the elevator car and the floor of the floor (a landing). It is also possible to install a landing detection switch so that the landing does not occur, or to set the clearance between the landing detection plate and the landing detection switch of the elevator car to a predetermined size when landing. These are important elements, and these are also checked during regular maintenance and inspection.

FIG. 1 is a schematic cross-sectional view showing a general elevator installation situation. In this figure, reference numeral 1 denotes a building structure, and an elevator shaft 2 is formed so as to be surrounded by the building structure 1. An elevator car 3 and a counterweight 4 are moved up and down in the elevator shaft 2. I do.

In the elevator shaft 2, metal guide rails 5, 6 are fixed to the building structure 1 in pairs in the vertical direction, respectively.
Is located opposite the car frame 7 surrounding the elevator car 3 and guides the elevator car 3 up and down.
The contact between various facilities installed in the hoistway 2 and the elevator car 3 is prevented. Reference numeral 8 denotes an elevator hall door.

FIG. 2 is an explanatory view showing a schematic structure of a peripheral portion of the elevator car 3, particularly, a landing detection device. As shown in this figure, an on-car angle 9 is attached to the car frame 7 so as to be located above the elevator car 3, and a section described later has a U-shape. A landing detection device 10 having a vertically long shape is attached. On the other hand, on the guide rail 5 near the floor where the elevator car 3 should be stopped, a landing detection plate mounting arm 11 is provided.
The landing detection plate 12 is attached to the tip of the. When the elevator car 3 moves up and down, the landing detection device 10 passes while the fixed landing detection plate 12 is positioned so as not to contact the inside of the U-shape of the landing detection device 10. Become.

FIG. 3 is a side view showing the landing detection device 10 viewed from the direction of arrow A in FIG. That is, the landing detection device 10 includes, for example, six optical switches 1
0a to 10f, each optical switch 10a
10 to 10f each include a light-emitting element and a light-receiving element. The light-emitting element is disposed on one of the U-shaped inner surfaces, and the light-receiving element is disposed on the other side in opposition to the light-emitting element.

Therefore, when the elevator car 3 starts decelerating to land on the floor and reaches the floor, the landing detection plate 12
The optical switches 10a to 10a of the landing detection device 10
For f, the switches are sequentially operated by blocking light from each light emitting element to the light receiving element, and control is performed such that the elevator car 3 is gradually stopped by the signal,
The final landing position is set at the position where the last optical switch 10a or 10f (depending on whether the elevator car 3 is in the ascending direction or the descending direction) is operated, so that the elevator car 3 can be accurately placed at a predetermined position. It can be floored.

[0009]

The gap between the landing detection device 10 and the landing detection plate 12 is adjusted to a regular size when the elevator is installed. However, the elevator apparatus has many mechanical parts, and structural characteristics change due to wear and aging, so that the positional relationship between the car frame 7 and the wall surface of the hoistway 2 changes. Dimension of the gap between the vehicle and the landing detection plate 12 and the hoistway 2 of the elevator car 3
It is necessary to periodically check the positional relationship with the wall surface, the guide rails 7 and the like, that is, the posture and the center of the elevator car 3 by maintenance personnel.

The conventional method for confirming the gap size and the like is that a maintenance person visually confirms. That is, the maintenance person puts the elevator in the inspection state, and the maintenance person rides on the elevator car 3 and visually checks it. This is not only inaccurate but also involves dangers, and the maintenance worker's workload becomes excessive. was there. In addition, during the inspection work, the use of the elevator becomes impossible, which causes a problem that the user is inconvenienced. The present invention has been made to solve such a problem.

[0011]

SUMMARY OF THE INVENTION According to the present invention, a detection plate installed in an elevator hoistway near a landing, at least one light emitting element and at least two light receiving elements are obliquely arranged in a horizontal plane with each other. An optical switch member arranged to face each other, a detection device provided symmetrically so that the optical axes of each other intersect with each other, and a display device corresponding to each of the light receiving elements of the detection device, The detection device is provided outside the elevator car so that the detection plate can pass through a space where the optical axes of the detection device cross each other.

Thus, the operating state of each light receiving element changes according to the relative position between each light receiving element of the detecting device and the detecting plate, and the operating state is displayed on the display device, whereby the hoistway of the elevator car 3 is raised. The positional relationship with the second wall surface, the guide rail 7 and the like can be accurately and easily detected.

[0013]

FIG. 4 to FIG. 17 show an embodiment of an elevator car attitude detecting apparatus according to the present invention.
This will be described in detail with reference to FIG.

FIG. 4 shows a detecting device 20 which is an essential part of the present invention.
FIG. 3 is a plan view showing an outline of the embodiment. The detection device 20 includes an optical switch member including a light-emitting element 22 such as one infrared LED and two light-receiving elements 23 and 24 on a substantially U-shaped frame 21 in a horizontal plane. Arranged so as to face each other, and as a pair of optical switch members,
One light emitting element 25 and two light receiving elements 26 and 27 are placed in the same frame 2 so as to face each other obliquely in a horizontal plane.
1 and are provided symmetrically so that the optical axes of the light emitting element 22 and the light emitting element 25 intersect each other. Therefore, in the space of the frame 21 having a substantially U-shape,
As indicated by the reference numerals A, B,..., H, I, nine areas are formed which are separated by the optical axis from the light emitting elements 22, 25 to the light receiving elements 23, 24, 26, 27.

At the landing position of the elevator car 3, a substantially U-shaped frame 21 will be described in detail later.
Landing detection plate 1 somewhere in the nine areas of the space
2 comes to be located. In addition,
In the figure, reference numeral 28 denotes light emitting elements 22 and 25 and light receiving elements 23 and 2
This is an external connection connector for supplying power to circuits 4, 26 and 27 and extracting signals.

As shown in FIG. 5, this detection device 20
3 is provided in the landing detection device 10 together with the optical switches 10a to 10f already described with reference to FIG. 3. Therefore, when the elevator car 3 moves up and down, similarly to the landing detection device 10, the fixed landing detection plate 12 is used. The detection device 20 also passes through while being positioned so as not to contact the space of the substantially U-shaped frame 21 of the detection device 20.

FIG. 6 shows the light emitting elements 22, 25 of the detecting device 20.
7 shows the circuit configuration of the light receiving elements 23, 24, 26, and 27 of the detection device 20 in the same manner. Since the DC power supply 31 is supplied to each of the light emitting elements 22 and 25, each of the light emitting elements 22 and 25 emits light, and the infrared light is transmitted to the light receiving elements 23, 24, 26 and 27.
, The light receiving elements 23, 24, 26, and 27 enter a conductive state. Relays 33, 34, 36, and 37 are connected in series to the light receiving elements 23, 24, 26, and 27, respectively, and a DC power supply 32 is supplied. When the conduction state is established, the corresponding relays 33, 34, 36, 37 operate.

The operating states of the relays 33, 34, 36, and 37 are transmitted to the operation panel 40 provided in the elevator car 3 and the control panel 41 installed in the machine room of the elevator apparatus. Connector 28 provided on body 21
Transmitted and displayed via That is, as shown in FIG. 8, the LED 42 is provided on the operation panel 40 for registering the destination floor provided in the elevator car 3 and performing other operations.
Is provided, and each relay 33, 34,
LEDs and the like corresponding to 36 and 37 are provided. Similarly, the control panel 41 installed in the machine room has L
An ED 43 is provided, and the LED 43 is also provided with an LED or the like corresponding to each of the relays 33, 34, 36, and 37. Note that each relay 33, 3
Signals from 4, 36 and 37 are transmitted to the LED 42 of the operation panel 40.
Is transmitted by the signal line 44 and the LED of the control panel 41
The signal is transmitted to the terminal 43 via a tail code 45.

Next, the operation of the present invention configured as described above will be described. 9 to 17 illustrate the positional relationship between the detection device 20 and the landing detection plate 12, that is, where the landing detection plate 12 is located in any of the nine areas in order to explain the operation of the present invention. FIG. 5 is a diagram showing whether or not the vehicle is in the same position as FIG.

First, FIG. 9 shows a state where the tip of the landing detection plate 12 is located in the area A. That is, the landing detection plate 12 is provided with the U-shaped frame 21 of the detection device 20.
In this state, the tip of the landing detection plate 12 is inserted shallowly into the space of the frame 21 although it is located at the center of the space. In this state, the elevator car 3 moves the guide rail 5
Is a specified value, but the clearance from the floor of the landing is wider than the specified value. In this case, the infrared rays from the light emitting elements 22 and 25 are not blocked by the landing detection plate 12 and all the light receiving elements 2
3, 24, 26, 27, each relay 3
Since all of 3, 34, 36, and 37 operate, the LED 42 of the operation panel 40 and the LED of the control panel 41 respond accordingly.
43 will emit light.

Next, FIG. 10 shows a state in which the tip of the landing detection plate 12 is located in the area B. That is, the tip of the landing detection plate 12 is formed in a U-shaped frame 2.
1 is inserted shallowly into the space, and the landing detection plate 1
2 is too close to the left side of the frame 21. This state is
This indicates that the clearance of the elevator car 3 from the floor of the landing is wider than the specified value, and the positional relationship with the guide rail 5 is too close to the left side of the specified value.
At this time, part of the infrared light from the light emitting element 22 is blocked by the landing detection plate 12, so that the infrared light does not enter the light receiving element 23 but enters the other light receiving elements 24, 26, and 27. Therefore, the relay 33 does not operate, and the other relays 34,
36 and 37 are operated, and the LE of the operation panel 40 responds to this.
D42 and the LED 43 of the control panel 41 emit light.

FIG. 11 shows a state in which the tip of the landing detection plate 12 is located in the area C. That is, FIG.
In contrast to the case, the clearance of the elevator car 3 from the floor of the landing is wider than the specified value, and the positional relationship with respect to the guide rail 5 is too close to the right side of the specified value. At this time, part of the infrared light from the light emitting element 25 is blocked by the landing detection plate 12 so that no infrared light is incident on the light receiving element 26 and the other light receiving elements 23, 24, 27
Is incident on. Accordingly, the relay 36 does not operate, and the other relays 33, 34, and 37 operate, and the LED 42 of the operation panel 40 and the LED 43 of the control panel 41 emit light in response to the operation.

FIG. 12 shows a state in which the tip of the landing detection plate 12 is located in the area D, which indicates that the elevator car 3 is at an appropriate position. That is,
The landing detection plate 12 is located at the center of the space of the U-shaped frame 21 of the detection device 20, and the tip of the landing detection plate 12 is located at the center of the space of the frame 21. Has been inserted. This state indicates that the positional relationship between the elevator car 3 and the guide rail 5 and the clearance between the elevator car 3 and the floor of the landing are both at specified values. At this time, the incidence of infrared rays from the light emitting elements 22 and 25 to the light receiving elements 23 and 26 is blocked by the landing detection plate 12, and the other light receiving elements 24 and
27, the relays 33 and 36 do not operate, only the relays 34 and 37 operate, and the L
Among the ED 42 and the LED 43 of the control panel 41, the relay 3
Only the LED responding to 4, 37 emits light.

Further, FIG. 13 shows that the landing detection plate 1
2 shows a state in which the tip of No. 2 is located. That is,
The state in which the tip of the landing detection plate 12 is inserted to the center of the space of the U-shaped frame 21 and the landing detection plate 12 is too close to the left side of the frame 21. It is shown. This state indicates that the clearance of the elevator car 3 from the floor of the landing is at a specified value, but the positional relationship with respect to the guide rail 5 is too close to the left side of the specified value. At this time, the infrared rays from the light emitting element 22 are blocked by the landing detection plate 12, and the light receiving elements 23, 24
, Only infrared light from the light emitting element 25 is incident on the light receiving elements 26 and 27. Therefore, the relays 33, 34
Does not operate, the other relays 36 and 37 operate, and the operation panel 4
The LED corresponding to the relays 36 and 37 emits light out of the LED 42 of the 0 and the LED 43 of the control panel 41.

FIG. 14 shows a state in which the tip of the landing detection plate 12 is located in the area F. That is, FIG.
3, the tip of the landing detection plate 12 is inserted up to the center of the space of the U-shaped frame 21, and the landing detection plate 12 is Too close to right. This state indicates that the clearance of the elevator car 3 from the floor of the landing is at a specified value, but the positional relationship with respect to the guide rail 5 is too close to the right side of the specified value. At this time, the infrared rays from the light emitting element 25 are blocked by the landing detection plate 12, and the light receiving elements 26, 2
7, only the infrared rays from the light emitting element 22 are incident on the light receiving elements 23 and 24. Therefore, the relays 36, 3
7 does not operate, the other relays 33 and 34 operate, and among the LEDs 42 of the operation panel 40 and the LEDs 43 of the control panel 41, LEDs corresponding to the relays 33 and 34 emit light.

FIG. 15 shows a state in which the tip of the landing detection plate 12 is located in the area G. That is, the tip of the landing detection plate 12 is inserted deeply beyond the center of the space of the U-shaped frame 21, and the landing detection plate 12 approaches the left side of the frame 21. The passing is shown. This state indicates that the clearance of the elevator car 3 from the floor of the landing is smaller than a specified value, and the positional relationship with respect to the guide rail 5 is too close to the left side of the specified value. In this case, the light emitting element 22
The incidence of infrared rays from the light receiving elements 23 and 24 and the infrared light from the light emitting element 25 to the light receiving element 26 are blocked by the landing detection plate 12, and the infrared light from the light emitting element 25 is emitted only to the light receiving element 27. Incident. Accordingly, only the relay 37 operates, the other relays 33, 34, and 36 do not operate, and the LED 42 of the operation panel 40 and the LED of the control panel 41 respond to the operation.
In 41, the LED corresponding to the relay 37 emits light.

FIG. 16 shows a state in which the tip of the landing detection plate 12 is located in the area H. That is, FIG.
5, the tip of the landing detection plate 12 is inserted deeply beyond the center of the space of the U-shaped frame 21, and the landing detection plate 12 is A state of being too close to the right side of the body 21 is shown. This state indicates that the clearance of the elevator car 3 from the floor of the landing is smaller than a specified value, and the positional relationship with respect to the guide rail 5 is too close to the right side of the specified value.
At this time, the infrared light receiving element 2 from the light emitting element 25
The incidence on the light receiving elements 6 and 27 and the incidence of infrared light from the light emitting element 22 on the light receiving element 23 are blocked by the landing detection plate 12, and the infrared light from the light emitting element 22 is incident on only the light receiving element 24.
Therefore, only the relay 34 operates, and the other relays 33, 3
6 and 37 do not operate, and among the LEDs 42 of the operation panel 40 and the LEDs 41 of the control panel 41, LEDs which respond to the relay 34
Will emit light.

Finally, FIG. 17 shows a state in which the tip of the landing detection plate 12 is located in the area I. That is, although the landing detection plate 12 is located at the center of the space of the U-shaped frame 21, the leading end thereof is
Is inserted deep beyond the center of the space. In this state, the elevator car 3 moves the guide rail 5
Although the positional relationship with respect to is at a specified value, the gap between the landing and the floor surface is smaller than the specified value. At this time, the infrared rays from the light emitting elements 22 and 25 are blocked by the landing detection plate 12, and all the light receiving elements 23, 24,
26, 27, so that each relay 33, 34,
36 and 37 do not operate, so the operation panel 40 and the control panel 41
Do not emit light.

As described above, according to the present invention, the space detecting section 1 fixed to the guide rail 5 and the space portion of the frame 21 of the detecting device 20 attached to the elevator car 3
2, the infrared rays from the light emitting elements 22 and 25 are selectively incident on the light receiving elements 23, 24, 26 and 27, and the infrared rays from the light emitting elements 22 and 25 are received. The relays 33, 34, 36, 37 associated with the elements 23, 24, 26, 27 operate. Then, in response to the relays 33, 34, 36 and 37, the LDE
Since the light emitting states of the light emitting devices 42 and 43 change, the LDE4
From the light emission states of 2, 43, the positional relationship of the elevator car 3 with respect to the guide rail 5 and the state of the gap with respect to the floor of the landing can be confirmed. That is, the LED 42,
The attitude of the elevator car 3 (in other words, the wick) can be detected from the state of the light emission of 43, and the maintenance staff can take appropriate corrective measures for the elevator apparatus according to the state (the attitude, the wick). Will be applied.

It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made without departing from the scope of the invention. For example, LDE4
In LEDs 2 and 43, LEDs corresponding to the light receiving elements 23, 24, 26 and 27 on which the infrared rays from the light emitting elements 22 and 25 are incident.
Light-emitting element 23,
A specific message corresponding to the combination of 24, 26, and 27 may be displayed.

That is, as shown in FIG. 12, when the elevator car 3 is at the proper position, it is displayed as "proper position", and as shown in FIG.
When the clearance between the landing and the floor is narrower than the specified value and the positional relationship with respect to the guide rails 5 is too close to the left side of the specified value, the space is displayed as “narrow gap, leftward”. Similarly, it is possible to display a specific message in all the states shown in FIGS. 9 to 17, and the means for displaying such a message is the activated relays 33, 34, 36, It is only necessary to select a message to be displayed from the 37 combinations, and implementation is easy.

The relays 33, 34, 36 and 37 are set to L
EDs may be used, in which case these LEDs 42, 4
3 will be incorporated. Furthermore, the combination of the light emitting element and the light receiving element does not necessarily have to be two light receiving elements for one light emitting element, and the detection accuracy can be improved by increasing the number of each.

[0033]

As described in detail above, according to the present invention,
Changes in the relative positional relationship between the elevator car and each part due to wear and aging can be quantitatively and easily confirmed without visual observation. For this reason, there is no possibility that the judgment may be varied between a veteran maintenance person and an inexperienced maintenance person. In addition, since it can be checked inside the elevator car or outside the hoistway such as the machine room, maintenance personnel are released from the conventional checking work that was done on the elevator car, Such accidents can be prevented beforehand, which contributes to ensuring safety and reducing the workload. Further, since the inspection can be performed without stopping the elevator, the service to the user can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view showing an installation state of a general elevator.

FIG. 2 is an explanatory diagram showing a schematic structure of a peripheral portion of an elevator car, particularly, a landing detection device portion.

FIG. 3 is a side view seen from the direction of arrow A in FIG. 2 for explaining the landing detection device.

FIG. 4 is a plan view illustrating an embodiment of an elevator car attitude detecting apparatus according to an embodiment of the present invention and schematically showing a detecting apparatus as a main part thereof.

5 is an explanatory view of a state in which the detection device shown in FIG. 4 is attached to a landing detection device, and is a side view seen from the direction of arrow A in FIG. 2;

6 is a circuit configuration diagram on the light emitting element side of the detection device shown in FIG.

7 is a circuit configuration diagram on a light receiving element side of the detection device shown in FIG.

FIG. 8 is a system diagram for explaining an embodiment of an elevator car posture detecting device according to the present invention, and illustrating an installation state of a display device to be configured.

9 is a diagram showing a positional relationship between a detection device and a landing detection plate for explaining the device shown in FIG.
2 shows a case where the tip of the landing detection plate is positioned.

10 is an explanatory diagram of a case where the tip of a landing detection plate is located in an area B for explaining the apparatus shown in FIG. 4;

11 is an explanatory diagram of a case where the tip of a landing detection plate is located in an area C for explaining the apparatus shown in FIG. 4;

12 is an explanatory diagram of a case where the tip of a landing detection plate is located in an area D for explaining the apparatus shown in FIG. 4;

13 is an explanatory diagram of a case where the tip of a landing detection plate is located in an area E for explaining the apparatus shown in FIG. 4;

14 is an explanatory diagram of a case where the tip of a landing detection plate is located in an area F for explaining the apparatus shown in FIG. 4;

15 is an explanatory diagram of a case where the tip of a landing detection plate is located in an area G for explaining the apparatus shown in FIG. 4;

16 is an explanatory diagram of a case where the tip of a landing detection plate is located in an area H for explaining the apparatus shown in FIG. 4;

17 is an explanatory diagram of a case where the tip of the landing detection plate is located in an area I for explaining the apparatus shown in FIG. 4;

[Explanation of symbols]

 Reference Signs List 3 elevator car 5 guide rail 7 car frame 8 landing door 9 angle on car 10 landing detection device 11 landing detection plate mounting arm 12 landing detection plate 20 detection device 21 frame 22, 25 light emitting element 23, 24, 26 , 27 Light receiving element 42, 43 LED

Claims (3)

[Claims] 1. An optical switch in which a detection plate installed on an elevator shaft near a landing and at least one light emitting element and at least two light receiving elements are arranged so as to face each other obliquely in a horizontal plane. A detecting device in which the members are provided as a pair and provided symmetrically so that their optical axes cross each other, and a display device corresponding to each of the light receiving elements of the detecting device, wherein the optical axes of the detecting devices are different from each other. An elevator car attitude detecting device, wherein the detecting device is provided outside an elevator car so that the detecting plate can pass through an intersecting space. 2. The landing detection plate according to claim 1, wherein the detection plate is provided on a guide rail in an elevator hoistway for guiding the elevator car up and down, and specifies a landing position of the elevator car. Item 7. The elevator car attitude detection device according to Item 1. 3. The elevator car attitude detecting device according to claim 1, wherein the display device displays a message corresponding to a light receiving state of each of the light receiving elements. .