JPH06135648A - Cage position detector for elevator - Google Patents

Abstract

PURPOSE:To permit the position detection with high precision by installing a terminal end position detecting means which is constituted of a plurality of members and represents the upper and lower terminal end floors in the first and second codes, on the wall of an elevator shaft and detecting each display means by a noncontact position detecting means installed on a cage side. CONSTITUTION:In the horizontal direction from an elevator passage wall 1 in the vicinity of the upper terminal end floor, a plurality of arms 62a-62d are arranged in the vertical direction, and the upper rank plates 9a-9c, 10a-10c, 11a-11c, and 12a-12c for coding the upper rank first - fourth operation points are installed, and an upper terminal end floor position display means is constituted on the arms 62a-62d, respectively. Further, in the vicinity of the lower terminal end floor, a lower terminal end floor position displaying means in negative relationship with the upper terminal end floor position displaying means is arranged. On a cage side 6, each position display means is detected in a noncontact manner. The position detectors 8a-8f using the magnetic action or photoelectric action are installed, and the reach of the cage 6 at the first - fourth operation points can be detected successively from the outputs of the position detectors 8a-8f.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator car position detecting device for detecting the position of a car at the end of an elevator hoistway.

[0002]

2. Description of the Related Art First, the structure of a conventional elevator car position detecting device will be described with reference to FIGS. FIG. 3 is a diagram showing a schematic configuration of a conventional elevator car position detecting device shown in the drawing attached to Japanese Patent Application No. 4-144164, for example. 4 and 5 are plan and front views of a conventional elevator car position detecting device shown in the drawings attached to Japanese Patent Application No. 4-144164, for example.

In FIG. 3, the elevator car 6 is
It goes up and down along the hoistway wall 1. The arms 62a to 62e projecting horizontally from the hoistway wall 1 near the upper end floor have the same length from the lower arm 62a to the upper arm 62e. Upper plates 9a-9c, 10a-10c, 11
The a to 11c, 12a to 12c, and 13a to 13c are attached to the arms 62a to 62e perpendicularly to the paper surface.

Here, the upper plates 9a-9c are the lowermost upper plates and code the upper first operating point. The operating point is a plurality of stages of positions set along the ascending / descending direction of the car 6.

Further, the upper plates 10a to 10c are upper plates of the next stage and are located above the upper first operating points 9a to 9c by a predetermined road separation, and encode the upper second operating points. Similarly, the upper plates 11a to 11c are the upper third operating points, and the upper plates 12a to 12c are the fourth upper operating points.
The operating points and the upper plates 13a to 13c respectively code the upper fifth operating points.

In this way, each operating point is coded by changing the horizontal fixed position of the three upper plates and is distinguished from each other. The lower plate provided in the vicinity of the lower terminal floor is the same as the upper plate except that the fixing position is different, and can be easily understood from the above description, so the description thereof will be omitted.

The mount 7 for the position detectors 8a-8f is
The position detectors 8a to 8f fixed to the car 6 use magnetic action. As shown in FIGS. 4 and 5, the position detectors 8a to 8f are magnetically shielded when the upper plate or the lower plate is sandwiched between the U-shaped recesses (i.e., loose insertion) and become inoperative. .

Next, the operation of the conventional elevator car position detecting device will be described. When the car 6 rises, approaches the upper terminal floor from the middle floor, and the position detectors 8a to 8f reach the upper first operating point, the position detectors 8a, 8c, and 8e at the positions of the upper plates 9a to 9c are higher. Plate 9a
Magnetically shielded by ~ 9c, resulting in inactivity. 4 and 5 show this state, FIG. 4 shows a plan view, and FIG. 5 shows a front view.

At this time, a signal output from the position detector is sent to a control device (not shown), and the car 6 is placed in the upper first position.
It is detected that the operating point has been reached. Further, when the car 6 rises and the position detectors 8a to 8f reach the upper second operating point, the position detections 8a, 8c and 8f at the positions where the upper plates 10a to 10c are fixed are moved to the upper plates 10a to 10c.
Then, it is detected that the car 6 has reached the upper second operating point due to the magnetically shielded state.

Similarly, when the car 6 further rises, the third
At the operating points (positions of the upper plates 11a to 11c), the position detectors 8a, 8d, 8e move to the fourth operating point (the upper plate 1).
Position detectors 8a, 8d, 8f at positions 2a to 12c)
Is the fifth operating point (positions of the upper plates 13a to 13c)
Then, the position detectors 8a, 8e, 8f are rendered inoperative, and it is detected that the car 6 has reached each operating point.

In this operation, the position detectors 8a-8f are
Upper plates 9a to 9c and 10a which are discretely arranged
10c, 11a to 11c, 12a to 12c, 13a to 1
The position of the car 6 is detected in a non-contact manner based on the presence or absence of 3c. Therefore, the operating points detected by the position detectors 8a to 8f do not change due to aging, and the position detectors 8a to 8f do not change.
No sound is generated when a to 8f are engaged with the upper plate or the lower plate.

The same is true when the car 6 approaches the lower terminal floor, and the description thereof is omitted because it is easily understood from the above description.

[0013]

The conventional elevator car position detecting device is configured as described above, and the upper plates 9a to 9c, 10a to 10c, 11a to 11 are provided.
c, 12a to 12c, 13a to 13c are missing, ON / OFF failure of the position detectors 8a to 8f, consistency check of operating points, etc. are not sufficiently taken, and they are on the terminal floor. However, if the car position is erroneously detected, the elevator does not decelerate properly.

Further, since there is no regularity in the fixed position of the plate at each operating point, it is troublesome to install and adjust the plate when installing the elevator, and there is a problem in that the plate is erroneously installed.

The present invention has been made to solve the above-mentioned problems, and can detect the position of a car accurately and accurately, and can secure sufficient reliability.
It is an object to obtain a car position detecting device for an elevator that is easy to install and has a quiet operating sound.

[0016]

The elevator car position detecting device according to claim 1 of the present invention comprises the following means. [1] Upper terminal floor position display means composed of a plurality of members provided on the wall of the hoistway and representing the upper terminal floor by a first code. [2] Lower terminal floor position display means composed of a plurality of members provided on the wall of the hoistway and representing the lower terminal floor by a second code having a negative relationship with the first code. [3] Position detection means provided on the car to detect the upper terminal floor position display means and the lower terminal floor position display means in a non-contact manner.

The elevator car position detecting device according to claim 2 of the present invention comprises the following means. [1] Upper terminal floor position display means that is composed of a plurality of members provided on the wall of the hoistway and that represents the upper terminal floor with a first code and that has a first check bit. [2] Lower terminal floor position display means that is composed of a plurality of members provided on the wall of the hoistway and that represents the lower terminal floor by a second code and that has a second check bit. [3] Position detection means provided on the car to detect the upper terminal floor position display means and the lower terminal floor position display means in a non-contact manner.

[0018]

In the elevator car position detecting apparatus according to the first aspect of the present invention, the upper terminal floor position display means composed of a plurality of members provided on the wall of the hoistway makes the upper terminal floor first. Represented by a code. Similarly, the lower terminal floor is indicated by the lower terminal floor position display means composed of a plurality of members provided on the wall of the hoistway.
It is represented by the second code, which has a negative relationship with the code. And by the position detection means provided in the car,
The upper terminal floor position display means and the lower terminal floor position display means are contactlessly detected.

In the elevator car position detecting device according to the second aspect of the present invention, the upper terminal floor position display means constituted by a plurality of members provided on the wall of the hoistway makes the upper terminal floor first. First with check bit
Is represented by the code. Similarly, the lower terminal floor position display means composed of a plurality of members provided on the wall of the hoistway indicates the lower terminal floor by a second code having a second check bit. Then, the upper terminal floor position display means and the lower terminal floor position display means are contactlessly detected by the position detection means provided in the car.

[0020]

【Example】

Example 1. The configuration of the first embodiment of the present invention will be described with reference to FIGS. 1 and 2. First Embodiment FIG. 1 is a diagram showing a first embodiment of the present invention. Further, FIG. 2 is a diagram showing a mounting arrangement of the plates according to the first embodiment of the present invention. In FIG. 1, (a) is a plan view of Embodiment 1 of the present invention, and (b) is a front view, respectively. The same or corresponding parts as in FIG.

The arms 62a to 62d are horizontally projected from the hoistway wall 1 near the upper terminal floor, and have the same length from the lower arm 62a to the upper arm 62d. Upper plate 9a
-9c, 10a-10c, 11a-11c, 12a-1
2c is attached to each of the arms 62a to 62d perpendicularly to the paper surface.

The upper plates 9a-9c are the lowermost upper plates and encode the upper first operating point.

The same applies to the lower plate provided near the lower terminal floor, and the lower plate 14a
-14c, 15a-15c, 16a-16c, 17a-
17c is attached to each of the arms 63a to 63d perpendicularly to the paper surface. Lower plates 14a-14c
Is the uppermost lower plate, which encodes the lower first operating point.

Here, the upper plates 9a to 9c and the lower plates 14a to 14c have a negative structure with each other, as shown in FIG. Similarly, the upper plates 10a to 10c and the lower plates 15a to 15c, the upper plates 11a to 11c and the lower plates 16a to 16c,
Upper plate 12a-12c and lower plate 17a-1
7c also has a mutually negative structure.

The operating point is a plurality of stages of positions set along the ascending / descending direction of the car 6. Upper plate 10a-1
0c is the upper plate of the next stage, and the upper first operating point 9
It is a predetermined road separation above a-9c and encodes the second upper operating point. Similarly, the upper plates 11a to 1
1c is the upper third operating point, upper plates 12a-12c
Respectively code the upper fourth operating point. The lower plate is similar to the upper plate and can be easily understood from the above description, and therefore the description thereof is omitted.

Further, in FIG. 1 and FIG. 2, the position detector 8
The fixed position of the plate corresponding to f is assigned to the check bit. That is, at the operating point on the upper terminal floor, the upper plates 9a, 10a, 11a, 12a are all attached to the fixed positions of the plates corresponding to the position detector 8f. On the other hand, at the operating point on the lower terminal floor, the fixed position of the plate corresponding to the position detector 8f is
Lower plate is not installed.

Furthermore, each operating point is coded by changing the horizontal fixed position of the three plates and distinguished from each other. That is, there are a total of six horizontal fixing positions of the plate, but the plates are actually attached only at three positions (three).

On the other hand, the corresponding operating points of the upper terminal floor and the lower terminal floor (6U and 6D, 7U and 7D, 8U and 8D, USR
And DSR) have plates attached to each other in a negative configuration.

By the way, the upper terminal floor position display means according to the present invention has the upper plates 9a, 9 in the first embodiment.
, 12b, 12c, and the lower terminal floor position indicating means according to the present invention corresponds to the lower plates 14a, 14b, ..., 17b, 17c in the first embodiment, and the position detecting means according to the present invention. Correspond to the position detectors 8a, ..., 8f in the first embodiment.

Next, the operation of the first embodiment of the present invention will be described. When the car 6 rises, approaches the upper terminal floor from the middle floor, and the position detectors 8a to 8f reach the upper first operating point, the position detectors 8 located at the positions of the upper plates 9a to 9c.
The a, 8c, and 8f are magnetically shielded by the upper plates 9a to 9c and become inoperative.

At this time, a signal output from the position detector is sent to a control device (not shown), and the control device determines whether or not the upper plate 9a which is a check bit exists. That is, it is determined whether or not the position detector 8f corresponding to the upper plate 9a is magnetically shielded and becomes inoperative.

Further, the upper plate constituting the operating point 6U is composed of three plates as described above, and the control device has the position detectors 8a, 8c and 8f at the positions of the upper plates 9a to 9c. It is determined with the check bit whether or not the plates 9a to 9c are magnetically shielded at the same time to be inoperative. If there is no problem in the determination result, it is detected that the car 6 has reached the upper first operating point.

Further, the car 6 rises and the position detector 8a
When ~ 8f reaches the upper second operating point, the upper plate 10
Similar processing is performed for a to 10c, and if there is no problem in the determination result, it is detected that the car 6 has reached the upper second operating point.

Similarly, when the car 6 further rises, the position detectors 8a, 8d and 8f at the upper third operating point (positions of the upper plates 11a to 11c) move to the upper fourth operating point (of the upper plates 12a to 12c). Position detectors 8b, 8
By subjecting d and 8f to the above processing, respectively,
It is detected that the car 6 has reached each operating point.

Further, in addition to the above two judgments, the codes for which the codes of arbitrary operating points sent to the control device are negative correspond to the upper terminal floor to the lower terminal floor and the lower terminal floor to the upper terminal floor. Since the processing for determining whether or not the code of the operating point to be performed matches is added, the reliability is further improved.

The same applies when the car 6 approaches the lower terminal floor, and the description thereof is omitted because it is easily understood from the above description. In the first embodiment, the position detectors 8a-
Although 8f is described as one using a magnetic action, it may be a position detector using a photoelectric action.

The first embodiment of the present invention, as described above,
When the car 6 moving up and down in the elevator hoistway approaches the terminal floor, it detects the position of the car 6 in the ascending / descending direction, and detects the operating point that is a plurality of stages of positions set along the ascending / descending direction. A plurality of upper plates 9a, 9 mounted discretely for each operating point for coding.
.. and lower plates 14a, 14b, .., and the lower plate 14a, 14b, ..., which are attached to the car 6 and engage with the upper plate and the lower plate in a non-contact manner, and the car 6 reaches one of the operating points when engaged. Position detector 8 for generating a signal indicating
, a, 8b, ..., And the codes of the corresponding car position operating points on the upper and lower terminal floors have a negative configuration with respect to each other.

Further, check bits for distinguishing the operating points of the upper terminal floor and the lower terminal floor are provided with upper plates 9a, 1
0a, 11a, 12a and lower plates 14a, 15a,
It is provided on 16a and 17a.

Further, the position detectors 8a, 8b,
The position detectors 8a, 8b, ... Which generate a signal indicating that the car 6 has reached one of the operating points when the number of magnetically shielded ... Is a fixed number (3) is provided. .

In the first embodiment of the present invention, in order to detect the car position, a plurality of plates 9a, ... The position detectors 8a to 8f are provided to generate a signal indicating that the car 6 has reached one operating point when engaged. And to improve the reliability of detection,
First, there is a check bit plate (position detector 8
It is provided at the plate mounting position corresponding to f and 8e),
Secondly, the codes of the corresponding operating points of the upper and lower terminal floors are made negative with respect to each other, and thirdly, the operating point is reached when the number of position detectors magnetically shielded by the plate is three. recognize. Therefore, it is possible to prevent the detection accuracy and reliability from being deteriorated due to the non-contact position detection of the car 6,
The effect is that the car position can be accurately detected.

[0041]

As described above, the elevator car position detecting device according to the first aspect of the present invention is composed of a plurality of members provided on the wall of the hoistway, and the upper terminal floor is represented by the first code. The lower terminal floor position display means including the upper terminal floor position display means and a plurality of members provided on the wall of the hoistway, and the lower terminal floor is represented by a second code having a negative relationship with the first code. Since the means and the position detection means provided in the car for detecting the upper terminal floor position display means and the lower terminal floor position display means in a non-contact manner are provided, the reliability of the detection can be improved, The position of the car can be accurately and accurately detected, the installation can be simplified, and the operation noise can be quietened.

As described above, the elevator car position detecting device according to the second aspect of the present invention is composed of a plurality of members provided on the wall of the hoistway and has the upper terminal floor as the first end.
The upper terminal floor position indicating means having a first check bit and a plurality of members provided on the wall of the hoistway are used to represent the lower terminal floor and are represented by a second code.
Lower terminal floor position indicating means having a check bit of
Since the car is provided with the position detection means for detecting the upper terminal floor position display means and the lower terminal floor position display means in a non-contact manner, the reliability of the detection can be improved and the position of the car can be improved. Can be accurately and accurately detected, the installation can be simplified, and the operation noise can be made quiet.

[Brief description of drawings]

FIG. 1 is a diagram showing a first embodiment of the present invention.

FIG. 2 is a view showing a mounting state of the plate according to the first embodiment of the present invention.

FIG. 3 is a diagram showing an outline of a conventional elevator car position detection device.

FIG. 4 is a view showing a plane of a conventional elevator car position detecting device.

FIG. 5 is a front view of a conventional elevator car position detecting device.

[Explanation of symbols]

1 Hoistway wall 6 Cars 8a, 8b, 8c, 8d, 8e, 8f Car position detectors 9a, 9b, 9c, 10a, 10b, 10c Upper plate 11a, 11b, 11c, 12a, 12b, 12c Upper plate 14a, 14b , 14c, 15a, 15b, 15c Lower plate 16a, 16b, 16c, 17a, 17b, 17c Lower plate

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] October 19, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0005

[Correction method] Change

[Correction content]

Further, the upper plate 10a~10c is a next stage of the upper plate, is above a predetermined distance than the upper first operating point 9a to 9c, which encodes the higher second operating point. Similarly, the upper plates 11a to 11c are the upper third operating points, and the upper plates 12a to 12c are the fourth upper operating points.
The operating points and the upper plates 13a to 13c respectively code the upper fifth operating points.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0037

[Correction method] Change

[Correction content]

The first embodiment of the present invention, as described above,
In which the car 6 to elevate the elevator hoistway detects the elevation position of the car 6 when approaching the terminal landing, a position at which the operating point of the plurality of stages that are set along the lifting direction A plurality of upper plates 9a, 9 mounted discretely for each operating point for coding.
.. and lower plates 14a, 14b, .., and the lower plate 14a, 14b ,. Position detector 8 for generating a signal indicating
, a, 8b, ..., And the codes of the corresponding car position operating points on the upper and lower terminal floors have a negative configuration with respect to each other.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0038

[Correction method] Change

[Correction content]

Further, in order to distinguish the operating points of the upper and lower terminal floors, the plate of the plate corresponding to the position detector 8f is fixed.
The fixed position is assigned to the check bit .

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0040

[Correction method] Change

[Correction content]

In the first embodiment of the present invention, in order to detect the car position, a plurality of plates 9a, ... The position detectors 8a to 8f are provided to generate a signal indicating that the car 6 has reached one operating point when engaged. And to improve the reliability of detection,
First, provided installation position of the plate corresponding to the position detector 8 f the check bits, the second, and the code of the operating point corresponding upper terminal landing and a lower terminal landing and negative to each other, the third, When the number of position detectors magnetically shielded by the plate is three, it is recognized that the operating point has been reached.
Therefore, there is an effect that the detection accuracy and the reliability are prevented from being lowered due to the non-contact position detection of the car 6, and the car position can be accurately detected.

Claims (2)

[Claims] 1. An upper terminal floor position display means comprising a plurality of members provided on a wall of a hoistway, the upper terminal floor being represented by a first code, from a plurality of members provided on the wall of the hoistway. Lower terminal floor position display means configured to represent the lower terminal floor by a second code having a negative relationship with the first code, and the upper terminal floor position display means and the lower terminal floor position display means provided on the car. An elevator car position detecting device comprising position detecting means for detecting a vehicle in a non-contact manner. 2. An upper terminal floor position indicating means, which is composed of a plurality of members provided on the wall of the hoistway and represents the upper terminal floor by a first code, and has a first check bit, provided on the wall of the hoistway. Lower end floor position indicating means which is composed of a plurality of members and represents the lower end floor by a second code and has a second check bit, and the upper end floor position indicating means and the lower end floor position provided on the car. An elevator car position detection device comprising position detection means for detecting the display means in a non-contact manner.