JP2776687B2 - Elevator door opening and closing inspection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator door opening / closing inspection device for inspecting an elevator door.

[0002]

2. Description of the Related Art Generally, when a car stops at a floor level, an elevator landing door engages with an engaging roller of the landing door and moves along a sill groove formed by an opening / closing device. , And is configured to be driven to open and close. Such a configuration will be described with reference to the drawings.

FIG. 4 is a conceptual view showing a fully closed state of a door of a car of an elevator as viewed from a landing side, and FIG. 5 is a perspective view of the vicinity of an engagement device shown in FIG. 4 and 5, reference numeral 50 denotes a car, 51 denotes a car door, 52 denotes a hanger suspending the car door, and 53 denotes a hanger 5.
2, a door rail for guiding the door 2, 54 a door motor for driving the door, 55 a pulley for transmitting the driving force of the door motor to the door, 56 a door driving rope, and 57 a metal fitting for fixing the door driving rope 56 and the hanger 52.

[0004] O LS is fully open detection switch for detecting that the door is fully opened substantially, C LS is the full-closing detecting switch for detecting that the door is fully closed substantially, GS is the car of the door ride a predetermined This is a car door switch that detects that the door is fully closed. Reference numeral 58 denotes a fully closed detection switch CLS and a fully opened detection switch O
A first cam 59 for operating the LS, and a second cam 59 for operating the car door switch GS are also provided. 60 is an engagement device for transmitting the driving force of the car door 51 to the landing door, 61 is a door stop rubber fixed to the closed end CE of the car 50 and in contact with the car door 51 when fully closed. Reference numeral 62 denotes a car sill that guides a lower portion of the car door 51, and reference numeral 63 denotes a door shoe attached to a lower end of the car door 51 and moving along a groove of the car sill 62. OE indicates the open end of the car door 51.

Next, a landing door will be described. FIG.
FIG. 7 is a conceptual diagram showing a fully closed state of a door of an elevator landing as viewed from a car side, and FIG. 7 is a detailed view of a door lock portion shown in FIG. 6 and 7, 70 is a landing door, 7
1 is a three-way frame of the landing door 70, 72 is the landing door 7
Numeral 0 denotes a hanger, numeral 73 denotes a door rail, and numeral 74 denotes a closer spring that applies a self-closing force to the landing door 70. 75 is a door lock device, 75R is a roller mounted on the door lock device 75, 77 is a hook rotatably mounted on the door lock device 75 around the fulcrum A, 76 is a hook 77
Is a movable contact roller attached to the tip of a hook 77; DS is a landing door lock switch fixed to a door rail;
Reference numeral 0 denotes a lock seat and a contact point of the landing door lock switch DS body, 81 denotes a landing sill, 82 denotes a door shoe of the landing door 70, and 83 denotes a door stop rubber attached to the closed end of the three-sided frame 71.

Next, the operation of opening and closing the door of the elevator shown in FIGS. 4 to 7 will be described. First, the operation when the door is opened will be described. Car door 51 and landing door 7
When the door motor 54 rotates in the door opening direction in response to the door open command when both of the doors 0 are in the fully closed state, the driving force is transmitted via the pulley 55, the driving rope 56, and the door hanger 52, and the door 51 of the car Moves in the direction of the open end OE. During this movement, the fully closed detection switch CLS is turned off when, for example, 3 mm is opened from the closed end, and the car door switch GS is turned off when, for example, 10 mm is opened from the closed end. In the vicinity of the off position of the car door switch GS, the car engaging device 60 comes into contact with the movable side engaging roller 76 of the door lock device 75 of the landing door 70, and the car door 51 further moves in the open end OE direction. When moved, the movable side engaging roller 76 is pushed by the engaging device 60, so that the hook 77 of the landing door 70 is lifted up, the landing door lock switch DS is turned off, and the hook 77 is moved.
Rises above the lock seat 79, and the locking of the landing door 70 is released.

[0007] With the movement of the car door 51 in the direction of the open end OE, the engaging device 60 pushes the roller 75R via the movable-side engaging roller 76, whereby the landing door 70 also moves, and the car 70 moves. At the position 10 mm in front of the open end OE of the door 51, the full open detection switch O of the car 50
LS is turned on, whereby the door open command signal is turned off, and the door 51 of the car opens to the open end OE due to inertia and stops.

Next, the operation when the door is closed will be described.
When the car door 51 is in the fully opened state, the landing door 70 is pulled toward the closed end by the force of the closer spring 74. At this time, since the movable side engaging roller 76 of the door lock device 75 of the landing door 70 hits the engaging device 60 of the car door, the hook 77 is lifted up. When the door motor 54 is driven by a door closing command from the elevator operation control device in the fully opened state, the car door 51 moves in the closing end direction CE, and the fully open detection switch OLS is turned off immediately at the start of closing, and thereafter, When the vehicle advances near the closed end CE, the landing door 70 first hits the door stop rubber 83, and the movement stops. Further, when the door 51 of the car is closed, a gap is formed between the engaging device 60 and the engaging roller 76, and the hook 77 is lowered, so that the lock seat 79 and the hook 77 of the landing door lock switch DS are positioned as shown in FIG. The lock is locked and the landing door lock switch DS is turned on. Thereafter, when the door 51 of the car is further closed, the car door switch GS is turned on at a position 10 mm before the closing end CE, the fully closed detection switch CLS is turned on at a position 3 mm before the closing end CE, and the door closing command signal is turned off. At the same time, the door 51 of the car hits the door stop rubber 61 at the closed end CE of the car, and the movement of the door 51 of the car stops, and the door closing operation is completed.

The elevator door structure and the opening and closing operations thereof have been described above. Due to the above-mentioned structure and opening / closing operation, loosening of bolts attaching each component, wear of the opening / closing device due to long-time use, increase in door running resistance due to change in the contact state between the sill groove and the door shoe, Foreign matter may enter the sill groove or accumulate debris on the upper part of the door rail, which may cause inconvenience in opening and closing the door.

[0010] The car door 51 and the landing door 7
In the structure of No. 0, if a problem occurs in opening and closing the door, not only does the passenger have a great deal of trouble but also there is a risk of causing a personal injury. Therefore, inspection of door opening and closing is an important inspection item.

A known elevator door abnormality detecting device is disclosed, for example, in Japanese Utility Model Laid-Open No. 62-176171. This apparatus measures the opening time and closing time of an elevator door, compares the measured time with a preset reference time, and when the measurement time is longer than the reference time, measures the measurement time and the measurement floor. The floor is output to report the abnormality, thereby eliminating the need for an elevator technician to measure the door opening / closing time.

[0012]

However, the conventional elevator door abnormality detecting device according to the above disclosure only looks at the time of opening and closing the door. Therefore, even if the presence or absence of the abnormality of the door can be detected, the cause of the abnormality is not determined. However, there is a problem in that it is not clear unless each part of the car door and the landing door is inspected, and the inspection requires much labor and time.

Further, a change in the position of the car door switch due to a displacement of the car door switch body due to a loosening of a mounting bolt of a bracket for fixing the car door switch of the car, and a change in the door lock position of the landing side door. There is a problem that it is not possible to detect an abnormality in a state immediately before a failure due to a position shift of the door lock device due to a loosening of a mounting bolt or the like. Further, there is a problem that it is not possible to detect a state in which the door is not completely closed, a state in which the door is not completely opened, or the like due to the dust being accumulated in the sill groove or the accumulation of dust on the upper portion of the door rail.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems in the prior art, and to cause a malfunction of a car door and a landing door, a state immediately before a failure due to a displacement of a switch or device due to loosening of a mounting bolt, or an incomplete closing of a door. An object of the present invention is to provide an elevator door opening / closing inspection device capable of easily finding a state or an incompletely opened state.

[0015]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention detects a car door that opens by a door open command signal and closes by a door close command signal, and a substantially fully closed position of the car door. a first switch for a second switch for detecting the closed position having a predetermined small distance from the fully closed position of the car door, the presence or absence of lock of the landing door to open and close in conjunction with the car door detection a third switch for,
A fourth switch for detecting a substantially fully opened position of the car door;
Elevator and a pitch Te door checking apparatus odor <br/>, said first switch, said second switch, the third switch and the phase of the operation signal of the fourth switch
An operating time measuring device that measures the operating time, which is the time interval between each other
And the operating time measured by the operating time measuring means.
Operating time storage means and reference operating time corresponding to the operating time
Reference operating time storage means for storing a time interval;
Operating signals of the switches, at least one of which is different, read from the storage means and the reference operating time storage means, respectively.
The number of operating times that are the mutual time intervals of the
The reference operating times corresponding to the operating times are compared with each other.
Also it had a comparative determination means for determining the acceptability of the door opening and closing Te
Nodea Ru.

[0016]

The operation time measuring means includes a first switch and a second switch.
Operating signals of the switch, the third switch and the fourth switch.
The operating time, which is the time interval between the signals, is measured. During operation
The interval storage means stores the operation time measured by the operation time measurement means.
Remember The reference operation time storage means stores the base corresponding to the operation time.
The semi-operation time is stored. The comparison judgment means is an operation time memory
Read from the step and reference operating time storage means respectively.
In addition, the operation signals of at least one switch are different from each other.
Operating times that are time intervals of each and each operating time
Multiple reference operating times corresponding to
Judge the quality of the closing.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. FIG. 1 is a block diagram of an elevator door opening / closing inspection device according to an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes an elevator car, GS denotes a car door switch (second switch) of the door of the car 1, CLS denotes a fully closed detection switch (first switch) , and OLS denotes a fully open detection switch.
(Fourth switch) , DS is a landing door lock switch (third switch) of the landing door, which are shown in FIG.
7 are the same as those shown in FIG. 2 is an operation control device, 2
1 is an input interface for inputting a signal of each switch, 22 is a floor signal generator, 23 is a door open command signal generator, 24 is a door close command signal generator, and 25 is each signal in the operation control device 2. This is a communication interface for transmitting a message.

Reference numeral 3 denotes an elevator door opening / closing inspection device according to the present embodiment. Reference numeral 31 denotes an operation time measurement circuit (operation time measurement circuit ).
Means , 32 is a first storage circuit (operating time storage means) ,
33 is an initial value storage circuit (reference operation time storage means) ;
Is a comparison determination circuit (comparison determination means) , and 35 is a second storage circuit. 4 is a terminal device, and 5 is a display device.

The operation control device 2 controls normal operations such as running and stopping the elevator car 1 and opening and closing the doors, and also controls the opening and closing command signals ZOPEN and ZOPEN when opening and closing the doors of the car 1. ZCLOSE, a floor signal FL indicating which floor is on, a signal of a landing door lock switch DS that is turned on when the landing door is closed and locked, and turned on when the car door is closed to a predetermined position (Before the example, 10 before the closed end
mm), the signal of the car door switch GS to be turned on)
A signal of the fully closed detection switch CLS which is turned on when the door of the car is substantially closed (turned on at a position 3 mm before the closed end, which is not the case described above), and the door of the car is substantially opened On (for example, 5 before the open end)
The signal of the full-open detection switch OLS which is turned on in mm) is output.

The operation time measurement circuit 31 of the door opening / closing inspection device 3 measures the operation time between predetermined signals among the above operation signals, and stores the measurement result in a first storage circuit 32.
To memorize. The initial value storage circuit 33 stores, as an initial value, the measurement result of the operation time at the initial stage when the elevator is installed. The comparison determination circuit 34 stores the above-described operation times when the elevator door is opened and closed and the initial value storage circuit 3.
3 is compared with the initial value stored in 3 to determine whether the door is open or closed. This determination result is stored in the second storage circuit 35.

Next, the operation of this embodiment will be described with reference to the time charts of the signals shown in FIGS.
2 and 3, CET indicates the time when the car 1 is at the closed end CE position, and OET indicates the time when the car 1 is at the open end OE position. The car 1 travels under the control of the operation control device 2,
It performs operations necessary for elevator equipment, such as stopping and opening and closing doors. In this embodiment, during the door opening operation, as shown in the time chart of the door opening operation shown in FIG. 2, the fully closed detection signal X is turned on after the door opening command signal ZOPEN is turned on.
Opening time a0 before the CLS turns off, the car door switch signal XG after the full-close detection signal XCLS turns off
The time a2 until S is turned off, the time a3 from when the fully closed detection signal XCLS is turned off until the landing door switch signal XDS is turned off, and the fully open detection signal XOLS is turned on after the fully closed detection signal XCLS is turned off. Approximately the entire door opening operation time a1 is measured.

During the door closing operation, as shown in the time chart of the door closing operation shown in FIG. 3, the fully open detection command signal XOL is turned on after the door closing command signal ZCLOSE is turned on.
The time b0 of the start of closing until S is turned off, the almost entire door closing operation time b1 from the time when the fully open detection signal XOLS is turned off to the time when the fully closed detection signal XCLS is turned on, and the time after the car door switch signal XGS is turned on Fully closed detection signal XCLS
Until the vehicle is turned on, and the fully closed detection signal XCLS after the landing door lock switch signal XDS is turned on.
The time b3 until is turned on is measured.

Before the abnormality monitoring of the door is performed by the present apparatus, first, an initial value is set. The initial value is set by opening and closing the door once for each floor, and setting a predetermined time a0, a1, a2, a3, b0, b of each operation signal at that time.
1, b2 and b3 are measured for each floor. Then, the measured time is used as an initial value for each floor, as an initial value storage circuit 33.
To be stored. The opening and closing of the door for measuring the initial value may be performed only once for each floor, but it is more preferable to use an average value of a plurality of times, for example, ten times of opening and closing, as the initial value, since the accuracy of determination afterwards becomes higher. The initial value as described above is adopted as the reference value because the door opening / closing time required for each elevator installation site is different, and it is desired to use the best value after the inspection as a reference. In addition, the reason why the initial value is set for each floor is that the specifications of the landing door may be different depending on the floor.

When the initial value is set as described above and the abnormality of the door is constantly detected, the operation time measuring circuit 31 calculates the time a between each operation signal every time the door is opened and closed.
0 to a3 and b0 to b3 are measured and stored in the first storage circuit 32. The comparison determination circuit 34 compares and determines each measurement value stored in the first storage circuit 32 with each corresponding initial value of the floor, and creates an abnormality detection code in the case of an abnormality.

The inspection items carried out by the comparison / judgment circuit 34 include an increase in the running resistance of the landing door, an increase in the running resistance of the car door, a change in the closing position of the car door switch GS, a change in the closing position of the landing door lock switch DS, and a fully closed state. Changes in the closing position of the detection switch CLS, changes in the closing position of the full-open detection switch OLS, dust near the closed end of the car, dust near the open end of the car, and possible abnormalities near the closed end of the landing door. It is.

Next, a method of comparing and judging these inspection items will be described. Judgment of "Increasing the running resistance of the landing door" If the landing door 70 is twisted, the door shoe 82 and the groove of the landing sill 81 come into strong contact with each other, and the frictional resistance increases the running resistance, and the door opening operation. Time,
When the landing door lock switch DS of the landing door 70 is turned off and the car door 51 and the landing door 70 are engaged, the landing door 70 is affected by the running resistance of the landing door 70,
The door opens slower than usual.

In the closing operation, the landing door 70 is closed together with the car door 51 by the driving force of the door motor 54 of the car 50 up to the vicinity of the closed end.
At the closed end, the engagement device 60 and the movable-side engagement roller 76 are separated from each other, and attempt to close with the force of the closer spring 74. However, if the running resistance of the landing door 70 is increased due to the tightness of the roller bearings of the hanger 72 of the landing door 70 or the abrasion of the door shoe 82, the speed of the landing door 70 is extremely reduced just before the closing end due to the influence. However, the time required for the landing door lock switch DS to be turned on increases, and in the worst case, it may not be possible to turn on the landing door lock switch DS. In this case, the running resistance of the landing door is affected not when the car door is completely opened and closed but only when the landing door and the car door are engaged. Therefore, a3 and b are the times when the landing door and the car door are not engaged.
Time 3 does not change.

Therefore, a method for determining the possibility that the running resistance of the landing door on a certain floor has increased is based on the fact that the door opening / closing times a1 and b1 of the entire area are both the initial values of the times a1 and b1 of that floor (about 3 to 3). 4 seconds), the value increases by more than a certain value (10% or more), and the times a3 and b3 are the initial values (about 15
0 to 200 ms), there is almost no change (± 2
0 ms or less).

Judgment of "Driving resistance increase of car door" The method of judging the possibility that the running resistance of the car door has increased is based on the door opening / closing time a1 in all areas of the floor where the door was opened / closed. , B1 both increase by more than a certain value (10% or more) with respect to the initial values of the times a1 and b1 of the floor, and the times a3 and b3 also increase by more than a certain value with respect to the initial values of the floor (more than 20 ms) ).

Judgment of "Change of the car door switch closing position" The cause of the change of the closing position of the car door switch GS may be loosening of the mounting bolt of the bracket fixing the car door switch GS or the car door switch GS. Looseness of the mounting screw of the cam to be operated, wear of the operating roller of the car door switch GS main body, and the like. When there is a call on another floor, the car 50 runs when the car door 51 is closed. However, in a state where only the landing door lock switch DS and the car door switch GS are ON, the running command is The traveling command is output only when the fully closed detection switch CLS is also turned on without being output. When the car door 51 is opened during traveling, the car 5
0 is suddenly stopped. In this case, even if there is a gap in the car door 51 such that only the fully-closed detection switch CLS is turned off, the car 50 can run, and the landing door lock is provided. The car 50 is stopped when either the switch DS or the car door switch GS is turned off. As described above, the traveling command of the car 50 is not output even when the car door switch GS is turned on, and is output only when the fully-closed detection switch CLS is turned on.
In the case where foreign matter such as dust is narrowed at the closed end of the car sill 62 and the car door switch GS is turned on just before the start, the car door switch GS is easily turned off by the vibration of the car 50 during traveling. And the car 50 is suddenly stopped. This is to prevent this.

When the closing position of the car door switch GS changes, the closing time from a certain reference point (preferably a full-close detection switch) changes both when the door is opened and when the door is closed. Since the change of the closing time also occurs when the running resistance of the door increases, it is necessary to determine when the entire door opening / closing time has not changed.

Therefore, the method of determining the possibility that the turning-on position of the car door switch has changed is based on the fact that the door opening / closing times a1 and b1 of all the areas on all the floors where the door is opened / closed are the same. Almost no change (change of less than ± 5%) with respect to the initial values of the times a1 and b1, and the fully closed detection switch C
The operation times a2 and b2 at the time of operation of the LS and the time of operation of the car door switch GS are respectively initial values (about 50 to 100 m).
This means that the value has changed by 20 ms or more with respect to s).

Judgment of "Change in the closing position of the landing door lock switch" The change in the closing position of the landing door lock switch DS is defined as the time when a certain signal (in this embodiment, the signal of the fully closed detection switch CLS) is operated. This means that the operating time during the operation of the landing door lock switch DS has changed. The reason why the closing time of the landing door lock switch DS is changed is that the door lock device body 75 and the door lock hook 7 due to the loosening of the mounting bolt of the door lock device body 75 in FIG.
7, the hanger 72 and the landing door panel 70
There is a displacement of the hanger 72 due to the loosening of the bolt for fixing the hanger 72. In this case, the dimension x in FIG. 7 also changes relatively, and is in the middle of the process leading to the door failure. That is, as shown in FIG. 7, the dimension x, which is the gap between the hook 77 of the door lock device 75 of the landing door 70 and the lock seat 79 of the landing door lock switch DS, and the dimension h of the hook are:
The specified installation dimensions are controlled so that the door can be unlocked and locked smoothly and reliably. If the mounting bolt of the door lock device 75 is loosened and the position of the hook 77 is displaced and the dimension x becomes 0 mm, the hook 77 and the lock seat 79 of the landing door lock switch DS are caught during the door opening operation, Both the landing door 70 and the car door 51 cannot be opened, and if the dimension x is too large, the landing door lock switch DS cannot be turned on when the door is closed.

In the above case, the relative position between the engaging roller 76 of the landing door shown in FIG. 6 and the engaging device 60 of the car shown in FIG. 4 (the movable engaging roller 76 when the door is fully closed) is used.
Therefore, the operation timing of the landing door lock switch DS changes relatively with the operation timing of the switch attached to the car. For example, the movable side engagement roller 7 in the fully closed state
6 is 11 mm when the elevator is installed
However, assuming that the distance becomes 13 mm due to the displacement of the door lock device main body 75, at the time of installation and door opening operation, when the door 51 of the car opens 11 mm from the closed end, the engaging device 60 is moved to the movable side. When the gap between the movable side engaging roller 76 and the engaging device 60 becomes 13 mm, the hook 77 starts to lift the hook 77 in contact with the engaging roller 76, and the car door door is further moved by 2 mm than when it is opened 11 mm at the time of installation. Hook 77 starts to lift when 51 opens,
The landing door lock switch DS is turned off.

Therefore, in the method of determining a change in the on / off position of the hall door lock switch on a certain floor, the door opening / closing times a1 and b1 of the entire area hardly change from the initial value of the floor (less than ± 5%). change), and, the landing door lock when switch DS behavior and the full-closing detecting switch CL operating time a3, b3 each initial value of the floor during the operation of S (about 150
２００200 ms), that is, ± 25 ms or more.

Judgment of "Foreign matter generation near the closed end of the landing door" When dust is generated near the closed end of the groove of the sill 81 of the landing door 70 or when dust is accumulated on the closed end above the door rail 73, Is the landing door 7 only when the door is closed.
The running resistance near the closed end of 0 increases. Therefore, when the door is in the closing operation, the car door 51 closes as usual near the closed end, but since the landing door 70 closes slightly later than usual, the landing door lock switch DS is turned on. Be late.

Therefore, the method of determining the possibility of occurrence near the closed end of the landing door 70 is such that the door opening / closing times a1 and b1 of the entire area hardly change (± 5%) with respect to the initial value of the floor. And the operation time b3 when the landing door lock switch DS is operated and when the fully closed detection switch CLS is operated become smaller than the initial value when the door is closed (30 m).
s) and the operation time a3 when the door is opened hardly changes (change of less than 20 ms).

The change of the closing position of the fully closed detection switch will be described below.
The same applies to the change of the closing position of the full-open detection switch, the dust near the closed end of the car, and the dust near the open end of the car.
What is necessary is to perform comparative analysis with the initial value of the floor in an appropriate combination of .about.b3.

The comparison judgment by the comparison judgment circuit 34 may be performed each time the door is opened or closed, or the comparison judgment may be made based on an average value of the number of times of opening and closing. That is, in the diagnostic operation performed during a time period when the elevator is not used, the comparison judgment is performed each time the door is opened and closed, and when the user frequently uses during the day, the comparison judgment is performed based on the average value of several times. There is also a way to do it.

As a result of the comparison, if it is determined that an abnormality has occurred, the measured value is stored in the second storage circuit 35 together with the detection date and time, an abnormality detection code indicating the nature of the abnormality, the floor name, and the initial value.
To be stored. Then, the stored data is displayed or printed periodically (once a month) on the display device 5, and at the time of the next periodic inspection by a specialized engineer, based on the output of the abnormality detection, the relevant part is displayed. Perform an inspection.

When a comparison is made, the initial value is compared with the initial value. The comparison value is set in several steps, and when the value reaches a value requiring immediate inspection and maintenance, the terminal device 4 is used.
An alert is sent to a monitoring center or the like immediately via.

As described above, in this embodiment, when the door of the elevator car is opened or closed, a door open command signal, a door close command signal, a car door switch signal, a fully closed detection signal, a fully opened detection signal, a landing door lock switch are provided. The time between predetermined signals in the signals is measured, the measured values are compared with the corresponding specified values, and when an abnormal value is indicated, inspection instruction information is output. It is possible to reduce the inspection time of the elevator door and the labor for the inspection without lowering the service of the customer, and it is possible to accurately and accurately catch the abnormality of the door.

In addition, the alarm information is output when an abnormal value that needs to be inspected immediately is indicated. Therefore, when an abnormality occurs in the elevator door, especially when there is a serious abnormality, it is necessary to take prompt action. There is also an effect that it becomes possible.

[0044]

As described above, the invention according to claim 1 is described above.
According to the report, when opening and closing the elevator car door,
A) at least one of detecting the fully open or fully closed state of
Operation, which is the mutual time interval of the
Operation times and multiple reference operations corresponding to each operation time
Comparing times with each other to determine whether doors are open or closed
Reduced the time and effort required for maintenance staff inspections
To reduce the service of elevator customers.
Elevator door inspection can be performed
A.
State just before a failure due to misalignment of switches or equipment
Rui easily incompletely closed state or incomplete open state of the door, and, Ru can be grasped precisely accurate. Claim 2
According to the invention, the reference operation time stored in the reference operation time storage means is stored.
The quasi-operation time is calculated by the operation time measurement means when the elevator is installed.
Since the operation time was measured,
A reference operating time can be set. Claim 3
According to the invention, the reference stored in the reference operating time storage means
Since the operation time is set for each floor,
Set the standard operation time according to the elevator door for each floor
Can be According to the invention described in claim 4, the comparative judgment
The operation time determined by the comparison means is the car door and
The operating time measurement means measures the opening and closing operation of the landing door
Operating time, so the cause of the door abnormality can be quickly detected.
Can be issued. According to the invention described in claim 5, the ratio
The operation time determined by the comparison means is the car door
And an operating time meter for each predetermined number of opening and closing operations of the landing door
Since the average value of each operation time measured by the measuring means was used,
Prevents erroneous detection of door abnormality due to temporary switch malfunction
Can be.

[Brief description of the drawings]

FIG. 1 is a block diagram of an elevator door opening / closing inspection device according to an embodiment of the present invention.

FIG. 2 is a time chart of each signal during a door opening operation in the embodiment.

FIG. 3 is a time chart of each signal at the time of a door closing operation in the embodiment.

FIG. 4 is a conceptual diagram showing a fully closed state of an elevator car door as viewed from a landing side.

FIG. 5 is a perspective view of the vicinity of the engagement device shown in FIG.

FIG. 6 is a conceptual diagram showing a fully closed state of an elevator landing door as viewed from the car side.

FIG. 7 is a detailed view of the door lock unit shown in FIG.

[Description of Signs] 1 car 2 operation control device 3 inspection device GS car door switch CLS fully closed detection switch OLS fully open detection switch DS landing door lock switch ZOPEN door open command signal ZCLOSE door close command signal 31 operating time measuring circuit 32 1 storage circuit 33 initial value storage circuit 34 comparison determination circuit 35 second storage circuit 36 terminal device 37 display device 51 car door 60 engaging device 70 landing door 75 door lock device 76 movable side engaging roller 77 hook

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B66B 13/14 B66B 5/02 B66B 13/22

Claims (5)

(57) [Claims] 1. A car door which is opened by a door open command signal and is closed by a door close command signal, a first switch for detecting a substantially fully closed position of the car door, and a predetermined switch from the fully closed position of the car door A second switch for detecting a closed position having a minute interval, a third switch for detecting the presence or absence of a lock on a landing door that opens and closes in conjunction with the car door ,
A fourth switch for detecting a substantially fully opened position of the car door;
Elevator and a pitch Te door checking apparatus odor <br/>, said first switch, said second switch, the third switch and the phase of the operation signal of the fourth switch
An operating time measuring device that measures the operating time, which is the time interval between each other
And the operating time measured by the operating time measuring means.
Operating time storage means and reference operating time corresponding to the operating time
Reference operating time storage means for storing a time interval;
Operating signals of the switches, at least one of which is different, read from the storage means and the reference operating time storage means, respectively.
The number of operating times that are the mutual time intervals of the
The reference operating times corresponding to the operating times are compared with each other.
A door open / close inspection device for an elevator, comprising: a comparison determining means for determining whether the door is open or closed. 2. The method according to claim 1, wherein the reference operation time is stored.
Criteria operation time stored in the stage, created at the time of the elevator installation
An elevator door opening / closing inspection device, wherein the operation time is measured by a moving time measuring means . 3. The method according to claim 1, wherein the reference operation time is stored.
The elevator door opening / closing inspection device, wherein the reference operation time stored in the row is set for each floor. 4. The method of claim 1, the comparison determination is being created dynamic time by comparison decision means, or car door and ride Ri field operating time measuring means for each opening and closing operation of the door is operating time that has been measured Elevator door opening / closing inspection device. 5. The method of claim 1, the comparison determination is being created dynamic time by comparison decision means, or car door and ride Ri field operating time measuring means for each opening and closing operation of a predetermined number of door measured <br / > Elevator door opening / closing inspection device characterized by the average value of each operation time.