JP2015093770A - Inspection device for door engagement device of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve measurement of an engagement gap dimension of each floor door without stopping an elevator car at each floor and without opening and closing an elevator car door and a landing door.SOLUTION: An inspection device for a door engagement device of an elevator disclosed in the invention is provided on an elevator equipped with a door engagement device which causes a landing door 4 to open and close following opening and closing of an elevator car door 2 by engagement between an engagement plate 3 and an engagement roller 5. The inspection device for a door engagement device of an elevator includes: a laser displacement sensor 6A for measuring an interval between the engagement plate 3 and the engagement roller 5; and an engagement gap dimension calculating device 8 which calculates an engagement gap dimension Lk that is a gap dimension between the engagement plate 3 and the engagement roller 5 on the basis of measurement values acquired from the measurement by the laser displacement sensor 6A while the elevator car 1 is passing each floors during descending operation of the elevator car 1 from an upper floor to a lower floor or ascending operation of the elevator car 1 from the lower floor to the upper floor.

Description

  The present invention relates to an inspection device for an elevator door engagement device that acquires an engagement gap dimension that is a clearance dimension between an engagement plate provided on a car door and an engagement roller provided on a landing door.

  Generally, an elevator includes a door engagement device having an engagement plate provided on a car door and an engagement roller provided on a landing door on each floor and engageable with the engagement plate. When the car door is opened and closed by a driving source provided on the car side, the landing door is opened and closed following a door engaging device having an engaging plate and an engaging roller.

  By the way, when the engagement plate provided on the car door and the engagement roller provided on the landing door come into contact with each other during the passage of each floor of the car, the landing door locking mechanism interlocked with the engagement roller is released, and the landing door is Opening the car may cause an emergency stop. For this reason, the distance between the engagement plate provided on the car door and the engagement roller provided on the landing door can be maintained at a predetermined gap dimension, that is, a predetermined engagement gap dimension that is considered to be an allowable value. I need it.

  Therefore, conventionally, Patent Document 1 is provided with pulse signal generation means for generating a pulse synchronized with the rotation speed of the door motor, and from the start of the opening operation of the car door until the lock mechanism of the landing door is released. In other words, there is disclosed an elevator door diagnostic apparatus for measuring the number of pulses output from the aforementioned pulse signal generating means when the car door is moved by a distance corresponding to the size of the engagement gap.

JP 2009-220999 A

  In the prior art disclosed in Patent Document 1 described above, in order to measure the engagement gap size of each floor, it was necessary to stop the car for each floor and open and close the car door and the landing door. . For this reason, there has been a problem that it takes time to perform an inspection work for measuring the size of the engagement gap.

  In this prior art, a pulse signal generating means for generating a pulse synchronized with the rotation speed of the door motor and a control device for taking in a pulse output from the pulse signal generating means are required. For this reason, when it is going to employ | adopt in the conventional relay type | formula elevator, while installation work takes time, installation expense tends to become high.

  The present invention has been made based on the actual situation in the prior art described above, and its purpose is to stop the car for each floor and to open and close the car door and the landing door without opening and closing the car door and the landing door. An object of the present invention is to provide an inspection device for an elevator door engagement device capable of measuring dimensions.

  In order to achieve the above object, an inspection apparatus for an elevator door engagement device according to the present invention comprises an engagement plate provided on a car door of a car and an engagement roller provided on a landing door on each floor. And the engagement plate and the engagement roller are provided in an elevator provided with a door engagement device that opens and closes the landing door by following the opening and closing of the car door by the engagement between the engagement plate and the engagement roller. In an inspection apparatus for an elevator door engagement device that obtains an engagement gap dimension that is a clearance dimension with a combined roller, a laser displacement sensor that measures a distance between the engagement plate and the engagement roller, and a top of the car The engagement gap dimension based on the measured value of the laser displacement sensor obtained by the measurement while passing through each floor accompanying the descending operation from the floor to the lower floor, or the ascending operation from the lower floor to the upper floor of the car. Calculate the engagement gear Tsu is characterized in that a flop dimension calculation device.

  According to the inspection device for an elevator door engagement device according to the present invention, the engagement gap size is calculated based on the measured value of the laser displacement sensor obtained by the measurement while passing through each floor accompanying the descending operation or the ascending operation of the car. Since the device calculates the engagement gap dimension, which is the clearance dimension between the engagement plate and the engagement roller of the door engagement device, the car door and the landing door are opened and closed without stopping the car for each floor. The engagement gap dimension of each floor door can be measured without any problem. As a result, the present invention can perform an inspection operation for measuring the size of the engagement gap in a short time as compared with the prior art, and can realize an improvement in the efficiency of the inspection operation.

It is a figure which shows one Embodiment of the inspection apparatus of the door engagement apparatus of the elevator which concerns on this invention. It is a figure which shows the laser detection apparatus with which the inspection apparatus which concerns on this embodiment is equipped, (a) A figure is a perspective view, (b) A figure is a side view. It is a perspective view which shows the engaging plate provided in the cage door where the laser detection apparatus with which the inspection apparatus which concerns on this embodiment is equipped is attached. It is a figure which shows the state which attached the laser detection apparatus with which the inspection apparatus which concerns on this embodiment is equipped to the engagement board provided in a car door, (a) A figure is a front view, (b) A figure is a side view. It is a side view which shows the engagement gap dimension Lk calculated with the engagement gap dimension calculation apparatus with which the inspection apparatus which concerns on this embodiment is equipped. It is a side view which shows the state which mounted | wore the engagement plate provided in the car door with the laser detection apparatus and zero reset jig | tool with which the inspection apparatus which concerns on this embodiment is equipped. It is a flowchart which shows the check work procedure of the door engaging apparatus performed by the measurement operator. It is a figure explaining the measurement operation | movement by the laser displacement sensor performed at the time of the descent | fall operation of a cage | basket | car. It is a figure which shows the display screen of the measurement condition input part of the engagement gap dimension calculation apparatus with which the inspection apparatus which concerns on this embodiment is equipped. It is a figure which shows the data characteristic of the calculated value of the engagement gap size calculation apparatus based on the measured value of the laser displacement sensor with which the inspection apparatus which concerns on this embodiment is equipped. It is a flowchart which shows the process sequence in the engagement gap size calculation apparatus with which the inspection apparatus which concerns on this embodiment is equipped. It is a figure which shows an example of the data characteristic of the calculated value of the engagement gap dimension calculation apparatus when the error has arisen in the measured value of the laser displacement sensor.

  Embodiments of an inspection device for an elevator door engaging device according to the present invention will be described below with reference to the drawings.

  As shown in FIG. 1, the elevator provided with the inspection device according to the present embodiment includes a car 1, a car door 2 provided in the car 1, and a landing door 4 provided in each floor landing. ing. Further, the elevator follows the opening / closing of the car door 2 by the engagement of the engagement plate 3 provided on the car door 2 of the car 1 and the engagement roller 5 provided on the hall door 4. 4 is provided with a door engaging device that opens and closes 4.

  As shown in FIG. 3, the engagement plate 3 is formed in a U-shape as a whole and has a pair of rising portions 3a and 3b that face each other. When the car 1 passes a predetermined floor or the like, the engaging roller 5 provided on the landing door 4 of the landing is connected to the rising part 3 a and the rising part 3 b of the engaging plate 3 provided on the car door 2. The arrangement relationship is accommodated between the two.

  In addition, the car door 2 and the landing door 4 part of FIG. 1 are drawn as a plan view. The engagement roller 5 operates by engaging with the engagement plate 3 to release a door lock mechanism (not shown) provided on the landing door 4.

  In FIG. 1 and FIG. 5, the gap dimension between the end portion (vertical center portion) 5a of the engagement roller 5 and the engagement plate 3, that is, the engagement gap dimension Lk to be acquired in this embodiment is shown. It is shown.

  As shown in FIGS. 1 and 2, the inspection device according to the present embodiment includes a laser detection device 6 having a laser displacement sensor 6 </ b> A that measures a distance between the engagement plate 3 and the end 5 a of the engagement roller 5 described above, An A / D converter 7 for A / D converting the measurement value of the laser detector 6 is provided.

  Further, the present embodiment is accompanied by a signal output from the A / D converter 7, that is, a descending operation from the upper floor to the lower floor of the car 1, or an ascending operation from the lower floor to the upper floor of the car 1. An engagement gap size calculation device 8 is provided that calculates the engagement gap size Lk based on the measured value of the laser displacement sensor 6A obtained by the measurement while passing through each floor. The engagement gap size calculation device 8 sets the engagement gap size Lk based on a measurement condition input unit 8A for inputting measurement conditions and a signal output from the A / D converter 7 when measuring by the laser displacement sensor 6A. And a calculation unit 8B that performs determination, storage, calculation, and the like.

  As shown in FIG. 9, on the display screen of the measurement condition input unit 8A, measurement is performed by moving the target floor input unit 8A1 for inputting from what floor to what floor the measurement target floor is, and the car 1 ascending. And a driving direction input unit 8A2 for instructing whether to perform the measurement by performing the descent operation.

  As shown in FIGS. 2 to 4, the laser detection device 6 provided in the present embodiment includes the above-described laser displacement sensor 6A, an L-shaped bracket 6B that holds the laser displacement sensor 6A, and the bracket 6B. And a magnet 6c to be attached to the outer portion of one rising portion 3a of the plywood 3. As shown in FIG. 4A, the vertical plane and the horizontal plane of the L-shaped bracket 6B that holds the laser displacement sensor 6A are horizontally aligned with the vertical plane of the rising portion 3a of the engagement plate 3. The laser detector 6 can be easily attached to the position of the engagement plate 3 set in advance by matching the two directional surfaces.

  In addition, as shown in FIG. 6, this embodiment is used before measurement by the laser displacement sensor 6 </ b> A when the engagement gap dimension calculation device 8 calculates the engagement gap dimension Lk, and can contact the engagement roller 5. A zero reset jig 11 for performing a zero reset that sets an opposing surface 3a1 that is an inner surface of the rising portion 3a of the engagement plate 3 as a measurement reference, and the zero reset jig 11 that faces the rising portion 3a of the engagement plate 3 And a magnet 11c to be attached to the surface 3a1.

As shown in FIG. 5, the laser detection device 6 is mounted on the outer portion of the rising portion 3a of the engagement plate 3, and the laser displacement sensor 6A emits laser light as indicated by the arrow 20 in FIG. When the zero reset jig 11 is attached to the facing surface 3a1 of the rising portion 3a of the engagement plate 3 as shown in FIG. 6, the distance between the laser displacement sensor 6A and the zero reset jig 11, that is, the laser displacement sensor 6A. A distance L0 between the rising portion 3a of the plywood 3 and the facing surface 3a1 is measured. Therefore, when the distance between the laser light displacement sensor 6A shown in FIG. 5 and the end 5a of the engagement roller 5, that is, the measurement value of the laser displacement sensor 6A is L, the engagement gap dimension Lk is an engagement gap dimension calculation device. 8 calculation unit 8B,
Lk = L-L0
Can be calculated.

  As can be seen from the data characteristics of the calculated values of the engagement gap size calculation device 8 in FIG. 10, the engagement gap size calculation device 8 has the engagement plate 3 on each floor with the laser displacement sensor 6A attached to the engagement plate 3. The object irradiated by the laser light of the laser displacement sensor 6 by the decrease in the slope of the value calculated based on the measurement value of the laser displacement sensor 6A obtained by the measurement when passing through the position of the engagement roller 5 Is the engagement roller 5 included in the door engagement device.

  In addition, the engagement gap size calculating device 8 calculates a value calculated based on the measured value of the laser displacement sensor 6A from a decreasing inclination indicated by b in FIG. 10 to an increasing inclination indicated by d. In the case of the shortest distance dimension that is a value obtained at the location c that is reversed to, the shortest distance dimension is determined as the engagement gap dimension Lk (= L−L0).

  Next, an inspection work procedure for door engagement measures performed by a measurement operator based on FIG. 7 and the like, that is, a measurement work procedure for calculating the engagement gap dimension Lk will be described.

  First, the measurement operator gets on the car 1 (step S1).

  Next, as shown in FIG. 4, the measurement operator attaches the laser detection sensor 6A to the rising portion 3a of the engagement plate 3 with the magnet 6c (step S2).

  Next, as shown in FIG. 6, the measurement operator attaches the zero reset jig 11 to the facing surface 3a1 of the rising portion 3a of the engagement plate 3 with the magnet 11c (step S3).

  Next, as shown in FIG. 1, the measurement operator connects the A / D converter 7 to the laser detection device 6, and connects the engagement gap size calculation device 8 to the A / D converter 7. The engagement gap size calculation device 8 is activated (step S4).

  Next, as shown in FIG. 6, the laser displacement sensor 6A irradiates the zero reset jig 11 with laser light, and the distance between the laser displacement sensor 6A and the zero reset jig 11, that is, the laser displacement sensor 6A and the engagement plate. The distance L0 between the rising portion 3a and the facing surface 3a1 is measured. The interval L0 is stored as a set value in the calculation unit 8B of the engagement gap size calculation device 8. Thereby, zero reset, that is, zero point setting is performed (step S5).

  Next, the zero reset jig 11 is removed and kept in the state shown in FIG. 4 (procedure S6).

  Next, the measurement software of the engagement gap size calculation device 8 is activated, and the measurement conditions are input in the measurement condition input unit 8A shown in FIG. Here, in the target floor input unit 8A1, the lowest floor, for example, the first floor is input from the top floor, for example, the ninth floor (step S7).

  Next, the operation direction input unit 8A2 instructs the start of DN side measurement, that is, the descending operation of the car 1. This causes the car 1 to descend at a low speed from the top floor to the bottom floor. During this descent operation, when passing through the position of the engaging roller 5 provided on the landing door 4 of the landing on each floor, the laser light is irradiated to the engaging roller 5 by the laser displacement sensor 6A (step S8).

  When the lowest floor is reached, a process for stopping the car 1 is performed. Thereby, the measurement by the laser detection apparatus 6 is complete | finished (procedure S9).

  Next, the measurement operation by the laser displacement sensor 6A performed during the descending operation in the step S8 of FIG. 7 described above will be described based on FIGS.

  As shown in step S11 of FIG. 11, the engagement gap size calculation device 8 is activated, and it is determined in the calculation unit 8B of the engagement gap calculation device 8 that measurement has started according to the instruction of the descent operation in the operation direction input unit 8A2. When the descending operation of the car 1 is performed, the laser displacement sensor 6a is irradiated during the descending operation as indicated by an arrow 21 in FIG. At this time, the difference between the data to be measured and the next data is calculated by the calculation unit 8b of the engagement gap calculation device 8 as shown in step S12 of FIG. As shown in FIG. 8A, when the laser beam from the laser displacement sensor 6A is not irradiated on the engagement roller 5, the calculated data hardly causes an inclination as shown in FIG. Kept in a state.

  As shown in FIG. 8B, the laser light from the laser displacement sensor 6 </ b> A starts to hit the upper end portion of the engagement roller 5 with the lowering operation. In step S13 of FIG. 11, it is determined whether or not the slope of the data calculated by the calculation unit 8B is within the specified range. If it is determined to be within the specified range, the slope (−) is within the specified range as shown in step S14 of FIG. Some data is detected at N points or more. At this time, the data calculated by the calculation unit 8B of the engagement gap size calculation device 8 has a reduced slope as shown in FIG.

  Further, while the car 1 is lowered to the position shown in FIG. 8C, the shape of the engagement roller 5 is extended to the end (vertical center) 5a by irradiation of the laser light from the laser displacement sensor 6A. In response, the measured value is detected. At this time, the data calculated by the calculation unit 8B of the engagement gap size calculation device 8 is the data indicated by the location c in FIG. 10 from which the inclination is reduced as shown in FIG. Change.

  Further, while the car 1 is lowered to the position shown in FIG. 8D, the laser displacement from the laser displacement sensor 6A causes the engagement roller 5 from the end (vertical center) 5a to the lower end. A measurement value corresponding to the shape of is detected. At this time, the data calculated by the calculation unit 8B of the engagement gap size calculation device 8 changes from the portion c in FIG. 10 where the inclination hardly occurs to the increased inclination as indicated by d in FIG. That is, as shown in step S15 of FIG. 11, the data is inverted after a portion with a small slope continues, and then the data having an increasing slope (+) within the specified range as shown in step S16 of FIG. Calculated as above.

  Further, when the car 1 is lowered as shown in FIG. 8E, the laser light irradiation from the laser displacement sensor 6 </ b> A is released from the engagement roller 5. At this time, the data calculated by the calculation unit 8B of the engagement gap size calculation device 8 is in a state in which almost no inclination occurs as shown in e of FIG. That is, as shown in step S17 of FIG.

  Then, as shown in step S18 of FIG. 11, the calculation unit 8B determines whether or not the measurement data file has reached the end.

  When it is determined that the measurement data has reached the end, the calculation unit 8B performs processing for determining the data calculated at the location c in FIG. 10 as the shortest distance dimension, that is, the engagement gap dimension Lk. As shown in step S19, the measurement data file is closed.

  As shown in step S20 of FIG. 11, the above-described processing operations are repeated by the number of floors, and when the measurement on all floors is completed, the measurement work ends.

  For example, after that, it is determined whether or not the calculated engagement gap dimension Lk is a normal value regarded as an allowable value, and if it is an abnormal value, for example, the door engagement device needs to be inspected. The instruction is displayed on a display screen or the like of the measurement condition input unit 8A of the engagement gap size calculation device 8.

  Further, in the above-described measurement, when noise data that is regarded as a discontinuous point exists in the data calculated by the calculation unit 8B of the engagement gap size calculation device 8 as shown in FIG. Is determined not to be the peak point, that is, the determination not to be the engagement gap dimension Lk is performed by the calculation unit 8B. In such a case, the fact that an error has occurred in the measurement data is displayed, for example, on the display screen of the measurement condition input unit 8A of the engagement gap size calculation device 8 or the like.

  According to the inspection apparatus for an elevator door engaging device according to the present embodiment configured as described above, the measured value of the laser displacement sensor 6A obtained by the measurement while passing through each floor accompanying the descending operation or ascending operation of the car 1 Therefore, the engagement gap dimension calculation device 8 calculates the engagement gap dimension Lk, which is the gap dimension between the engagement plate 3 and the engagement roller 5, without stopping the car 1 for each floor, The engagement gap dimension Lk of each floor door can be measured without opening and closing the car door 2 and the landing door 4. Thereby, this embodiment can perform the inspection operation | work which measures the engagement gap dimension Lk in a short time, and can implement | achieve the efficiency improvement of this inspection operation | work.

  Further, in the present embodiment, when the engagement gap size calculation device 8 passes the engagement roller 5 of each floor with the laser displacement sensor 6A attached to the engagement plate 3, the calculated data has a predetermined inclination. By discriminating the decrease, it is possible to specify that the object irradiated by the laser light of the laser displacement sensor 6A is the engagement roller 5, which contributes to the measurement of the engagement gap dimension Lk with high accuracy. .

  Further, in the present embodiment, the engagement gap size calculation device 8 is a portion where the measurement data calculated along with the measurement by the laser displacement sensor 6A is reduced by a predetermined inclination and then reversed to an increase inclination, that is, in FIG. Since the shortest distance dimension at the location c is determined as the engagement gap dimension Lk, the measurement of the engagement gap dimension Lk with high accuracy can be realized.

  In this embodiment, since the bracket 6B constituting the laser detection device 6 is formed in an L shape, the bracket 6B is fixed to the engagement plate 3 via the magnet 6c while the laser displacement sensor 6 is held by the bracket 6B. It can be easily mounted at a given position. Therefore, this embodiment can always ensure uniform measurement accuracy regardless of the skill level of the measurement operator, and can realize highly reliable inspection work.

  In addition, the present embodiment can be easily installed even in a conventional relay elevator, and can ensure excellent versatility. Even when the present embodiment is installed in a conventional relay elevator, the installation work can be performed in a short time and the equipment cost can be reduced.

  Further, in the present embodiment, the zero reset processing work is performed through the zero reset jig 11 that is easily attached to the facing surface 3a1 of the rising portion 3a of the engagement plate 3 by the magnet 11c. The processing operation can be performed easily, which contributes to the improvement of the efficiency of the measurement operation of the engagement gap dimension Lk.

  In the above-described embodiment, the car 1 is measured by the laser displacement sensor 6A while being lowered from the top floor to the bottom floor, and the engagement gap size calculation device 8 performs the engagement gap based on the measured value. The dimension Lk is calculated, but conversely, the car 1 is measured by the laser displacement sensor 6A while being raised from the lowermost floor to the uppermost floor, and the engagement gap dimension calculating device 8 is based on the measured value. In this case, the engagement gap dimension Lk may be calculated.

  Further, when checking a door engaging device on a specific floor, the car 1 may be measured by performing an ascending operation or a descending operation only on the specific floor.

DESCRIPTION OF SYMBOLS 1 Car 2 Car door 3 Engagement plate 3a Standing part 3a1 Opposing surface 3b Standing part 4 Landing door 5 Engaging roller 5a End part 6 Laser detector 6A Laser displacement sensor 6B Bracket 6C Magnet 7 A / D converter 8 Engagement gap Dimensional calculation device 8A Measurement condition input unit 8A1 Target floor input unit 8A2 Driving direction input unit 8B Calculation unit 11 Zero reset jig 11c Magnet

Claims (6)

An engagement plate provided on a car door of a car and an engagement roller provided on a landing door on each floor, and the engagement of the engagement plate and the engagement roller follows the opening and closing of the car door. Provided in an elevator provided with a door engaging device for opening and closing the landing door,
In an inspection apparatus for an elevator door engagement device for obtaining an engagement gap dimension which is a clearance dimension between the engagement plate and the engagement roller,
A laser displacement sensor for measuring a distance between the engagement plate and the engagement roller;
Based on the measured value of the laser displacement sensor obtained by the measurement during the passing through each floor accompanying the descending operation from the upper floor to the lower floor of the car, or the ascending operation from the lower floor to the upper floor of the car, An inspection apparatus for an elevator door engagement device, comprising: an engagement gap size calculation device for calculating the engagement gap size. The inspection apparatus for an elevator door engaging device according to claim 1,
The engagement gap size calculating device is configured to measure the laser displacement sensor obtained by measurement when the engagement plate passes the position of the engagement roller on each floor in a state where the laser displacement sensor is installed on the engagement plate. Elevator door engagement characterized in that it is determined that the object to be irradiated with the laser light of the laser displacement sensor is the engagement roller by decreasing or increasing the slope of the value calculated based on the measured value. Equipment inspection equipment. The inspection apparatus for an elevator door engaging device according to claim 2,
When the value calculated based on the measured value of the laser displacement sensor is the shortest distance dimension that is a value obtained at a place where a predetermined inclination is reversed from decrease to increase, An inspection apparatus for an elevator door engagement device, wherein the shortest distance dimension is determined as the engagement gap dimension. In the inspection apparatus of the door engagement apparatus of the elevator of any one of Claims 1-3,
An inspection apparatus for an elevator door engagement device, comprising: a bracket for holding the laser displacement sensor; and a magnet for mounting the bracket on the engagement plate. In the inspection apparatus of the elevator door engaging apparatus of any one of Claims 1-4,
When the engagement gap size is calculated by the engagement gap size calculation device, the counter surface of the engagement plate that is used before the measurement by the laser displacement sensor and can contact the engagement roller is set as a measurement reference. An inspection apparatus for an elevator door engaging device, comprising a zero reset jig for resetting. In the inspection apparatus of the elevator door engaging apparatus of Claim 5,
An inspection device for an elevator door engagement device, comprising: a magnet for mounting the zero reset jig on the engagement plate.