JP2012188199A - Method of inspecting interlock and elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of inspecting an interlock which can be implemented in a mode of having little influence to the elevator operation.SOLUTION: The interlock 3 includes at least a lock arm 23 provided to a landing door side, a landing lock switch 19, a mechanical engaging lock 25 and a movable drive roller 27, and a vane 29 provided to a car door side. The landing lock switch and mechanical engaging lock perform switching and release the lock by rocking of the lock arm. The vane includes an inclined part 37 which is inclined and extended in the elevating direction from a body part 35. In an inspection mode, the car door is moved to a position displaced in the elevating direction in relation to the landing door, the vane inclined part is made to abut on the movable drive roller, and thus, the car door is made to perform door opening operation in a state of switching the landing lock switch, and at least the play margin or engagement allowance of the mechanical engaging lock is inspected.

Description

  The present invention relates to an interlock inspection method and an elevator.

  The elevator includes a hoistway extending vertically and a plurality of landings provided at different levels of the structure depending on whether the elevator is movable. Each car and each landing are provided with a car door and a landing door, and the car door and the landing door are opened in a state where the car door is aligned with the landing door of the target landing. You can get on and off.

  As exemplified in Patent Document 1, the elevator is provided with a so-called interlock, and the landing door can be opened only when the positional relationship with the car door is properly aligned. Is intended.

  Conventionally, in the interlock inspection work, a specialist engineer climbs the ceiling of the car and visually checks the state of the mechanical engagement lock included in the interlock and the state of the electrical switch for each landing from the hoistway. I was checking whether it was normal.

JP 2009-220999 A

  However, in the interlock inspection method by the above-mentioned specialist engineer, it was necessary to completely stop the service of the elevator. In addition, it was a large-scale work that required a considerable amount of time, including the entry / exit of a professional engineer to / from the car and the operation of moving to the landing on each floor at a low speed in the hoistway.

  This invention is made | formed in view of the above, and it aims at providing the inspection method of the interlock of an elevator which can be implemented in the aspect with little influence on operation | movement of an elevator.

The present invention for achieving the above-described object is a method for inspecting a landing door interlock that is unlocked in response to a door opening operation of an elevator car door, and the interlock is provided on the landing door side. At least a lock arm, an electrical switch, a mechanical engagement lock and a movable drive roller, and a vane provided on the car door side, wherein the lock arm is swingably provided. The mechanical engagement lock is switch-switched and unlocked by swinging the lock arm, and the vane has a main body portion extending in the ascending / descending direction, and an inclined portion extending from the main body portion so as to be inclined with respect to the ascending / descending direction. The car door is moved to a position shifted in the ascending / descending direction with respect to the landing door, and the inclined portion of the vane is moved to the movable drive rod. It is brought into contact with La, whereby in a state of switching the electric switch, by operating door opening in the car door, to inspect the least play allowance or consuming cost of the mechanical engagement locking.
The present invention also provides an elevator that achieves the same object. The elevator according to the present invention detects the interlock of the landing door that is unlocked by the door opening operation of the car door, and the lift of the car. An elevator comprising a car lift amount detecting means, a door opening amount detecting means for detecting a door opening amount of the car door, and a door opening torque detecting means for detecting a door opening torque of the car door, The interlock includes at least a lock arm provided on the landing door side, an electrical switch, a mechanical engagement lock and a movable drive roller, and a vane provided on the car door side, and the lock arm is swingable. The electrical switch and the mechanical engagement lock are switched and unlocked by swinging the lock arm, and the vane extends in the ascending / descending direction. A main body part and an inclined part extending obliquely from the main body part with respect to the ascending / descending direction, and the elevator further includes an inspection operation control unit and an inspection determination unit, and the inspection operation control The section moves the car door to a position shifted in the ascending / descending direction with respect to the landing door, causing the inclined portion of the vane to contact the movable drive roller, thereby switching the electrical switch. In the state, the car door is operated to open the door, and the inspection determination unit is configured to detect the mechanical movement based on a detection result of the lifting / lowering amount of the car, the opening amount of the car door, and the opening torque of the car door. Check at least the allowance or hook allowance of the engagement lock.

  According to the present invention, the interlock can be inspected in a manner that has little influence on the operation of the elevator.

It is a figure which shows the component of the elevator which concerns on this Embodiment which applies the inspection method of an interlock. It is a figure which shows the structure of an interlock, and its normal operation | movement. It is a flowchart which shows the process including the inspection method of an interlock. It is a figure which shows the operation | movement of the interlock at the time of inspection. It is a figure which shows the structure regarding modified embodiment.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an interlock inspection method and the like according to the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same or corresponding parts.

  FIG. 1 is a diagram showing components of an elevator according to the present embodiment to which an interlock inspection method is applied. The elevator 1 includes at least a landing door interlock 3, a car lift detection unit 5, a door opening detection unit 7, a door opening torque detection unit 9, an inspection operation control unit 11, and an inspection determination unit 13. I have.

  The interlock 3 is a lock of the landing door that is unlocked in response to the door opening operation of the car door. The car raising / lowering amount detecting means 5 detects the raising / lowering amount of the car. As a specific example, an encoder or a resolver provided in the hoisting machine 15 can be cited. The door opening amount detecting means 7 and the door opening torque detecting means 9 are for detecting the door opening amount and the door opening torque of the car door, respectively. As a specific example, an encoder provided in the car door motor 17 can be cited.

  The inspection operation control unit 11 causes the car and the car door to perform an operation required for the inspection of the interlock 3 and controls the operation. For this reason, at least the hoisting machine 15 and the car door motor 17 are connected to the inspection operation control unit 11.

  The inspection determination unit 13 inspects the interlock 3 based on the detection results of the lift of the car, the door opening amount of the car door and the door opening torque of the car door, and in particular, the mechanical engagement lock in the interlock 3. It is determined whether at least the play allowance or the allowance is normal (is the expected state). Therefore, at least the car lifting / lowering detection means 5, the door opening amount detection means 7, the door opening torque detection means 9 and the landing lock switch 19 in the interlock 3 are connected to the inspection determination unit 13.

  The inspection operation control unit 11 and the inspection determination unit 13 are provided in an existing control panel 21 that controls and manages various operations of the elevator. The installation mode includes addition of functions on the software, hardware Any aspect of addition on the wear (addition of parts, substrates, chips, etc.) may be used, or both of them may be applicable.

  Next, details of the interlock will be described. FIG. 2 is a diagram showing the structure of the interlock and its normal operation. The interlock 3 includes at least a lock arm 23, a landing lock switch 19 as an electrical switch, a mechanical engagement lock 25, a movable drive roller 27, and a vane 29.

  The landing lock switch 19 and the mechanical engagement lock 25 are switched and unlocked by swinging the lock arm 23. The lock arm 23 is provided so as to be able to swing around the axis 33 of the fixed drive roller 31 provided on one end side thereof. The mechanical engagement lock 25 is composed of a first piece 25a and a second piece 25b that can contact and separate from each other. The first piece 25 a is fixed in place, and the second piece 25 b is provided on the lock arm 23 so as to swing integrally with the lock arm 23. The landing lock switch 19 includes a first contact 19a and a second contact 19b that can contact and separate from each other. The first contact 19 a is fixed in place, and the second contact 19 b is provided at the other end of the lock arm 23 so as to swing integrally with the lock arm 23.

  When the landing door is fully closed, the landing lock switch 19 is closed, that is, the first contact 19a and the second contact 19b are in contact with each other. Further, in the mechanical engagement lock 25, when the landing door is fully closed, the first piece 25a and the second piece 25b are separated from each other, and more specifically, as shown in FIG. Thus, the play allowance X is separated in the opening / closing direction of the landing door, and the allowance Y is overlapped in the ascending / descending direction.

  The vane 29 is composed of a pair of parallel spaced engagement plates provided so as to move up and down integrally with the car. The vane 29 is formed at a body portion 35 extending along the lifting direction and at both ends of the body portion 35. The main body part 35 includes an inclined part 37 extending obliquely with respect to the ascending / descending direction.

  The lock arm 23, the landing lock switch 19, the mechanical engagement lock 25, and the movable drive roller 27 are provided on the landing door side, and the vane 29 is provided on the car door side.

  The normal door opening operation of the interlock 3 will be described instead of the inspection operation described later. First, as shown in FIG. 2A, when the position of the car door is not aligned with the position of the landing door, the movable drive roller 27 is in a state of being detached from the pair of engagement plates in the vane 29. In this state, even if the landing door is to be opened, the landing door can be moved by an amount corresponding to the play allowance X except that the mechanical engagement by the mutual contact between the first piece 25a and the second piece 25b. Door opening is prevented by the locking action of the lock 25.

  On the other hand, when the position of the car door is properly aligned with the position of the landing door, the movable drive roller 27 is positioned between the pair of engagement plates of the vane 29 as shown in FIG. Become. Then, when the car door performs the door opening operation from this state, as shown in FIG. 2C, the vane 29 moves sideways in the direction of the arrow A1 together with the car door. As a result, the movable drive roller 27 comes into contact with the vane 29 and is pushed in the direction of the arrow A1 as it is, and the lock arm 23 swings in the direction of the arrow A2 about the axis 33. As a result, the first contact point 19a and the second contact point 19b are separated to switch the landing lock switch 19, and the first piece 25a and the second piece 25b are also separated to release the mechanical engagement lock 25. By unlocking the mechanical engagement lock 25 in this way, the landing door can be opened in conjunction with the car door.

  Next, an interlock inspection method according to the present embodiment based on the above configuration will be described. FIG. 3 is a flowchart showing a process including an interlock inspection method, and FIG. 4 is a diagram showing an interlock operation at the time of inspection. In FIG. 3, whether or not the car is in an unloaded state is monitored as step S1, and whether or not the car is in an available state is monitored as step S2. That is, when there is a user or baggage in the car, or even when there is no such baggage, a normal elevator operation is continued and maintained when a call is already received from the landing.

  When the car is in an unloaded state and in an available state, the inspection mode is started as step S3. Specifically, an example of checking whether or not the allowance X of the interlock (mechanical engagement lock) is appropriate will be described. First, from the normal state shown in FIG. As indicated by an arrow A3, the car and vane 29 are moved so that the upper inclined portion 37 of the vane 29 or the upper end of the main body 35 is aligned with the height of the movable drive roller 27 according to the control command of the inspection operation control unit 11. Move. That is, the car door is moved to a position shifted in the ascending / descending direction with respect to the landing door.

  Further, according to the control command of the inspection operation control unit 11, the car door is slightly opened to move the vane 29 laterally as shown by an arrow A4, as shown in FIG. The movable drive roller 27 is slightly moved by the inclined portion 37 on the upper side of the vane 29 or the upper end portion of the main body portion 35 to switch the landing lock switch 19 to the OFF state. Note that the amount of lift of the car and the amount of door opening of the car door are fed back from the inspection determination unit 13 to the inspection operation control unit 11 with the detection results of the car lifting amount detection means 5 and the door opening amount detection means 7. The operation control unit 11 performs appropriate lifting and door opening operations while considering them.

  Then, the inspection operation control unit 11 further moves the vane 29 in the lateral direction by causing the car door to open as indicated by an arrow A5 from the state of FIG. 4B. In addition, during this time, the inspection determination unit 13 relates to the door opening torque of the car door as a detection result from the door opening torque detecting means 9, and the state of the door opening torque of the car door rapidly increasing is shown in FIG. As shown in FIG. 5, the mutual contact between the first piece 25a and the second piece 25b in the mechanical engagement lock 25 is determined. Therefore, the inspection determination unit 13 can obtain the play allowance X data of the mechanical engagement lock 25 based on the detection of the door opening amount of the car door after the landing lock switch 19 is switched to the OFF state. .

  When a call is generated from any landing during the inspection mode in step S3, the inspection mode is interrupted and the normal operation of the elevator is promptly resumed.

  Returning to FIG. 3, as step S <b> 4, the inspection determination unit 13 records the play allowance X data of the mechanical engagement lock 25 and, for example, the play allowance X measured as follows is appropriate. It is determined whether or not. First, as step S5, the inspection determination unit 13 determines whether or not the measured play allowance X is equal to or greater than a first reference value. When the allowance X is less than the first reference value, there is no problem with the inspection result, and the elevator is returned to normal operation.

  On the other hand, if the allowance X is equal to or greater than the first reference value, it is further determined in step S6 whether or not the allowance X is equal to or greater than the second reference value. As a result, when the play allowance X is equal to or greater than the first reference value and less than the second reference value, a record to that effect is left as an adjustment target at the next maintenance, and the allowance allowance X is equal to or greater than the second reference value. In some cases, as a result of the inspection, it is assumed that the interlock needs to be adjusted immediately, and the operation of the elevator is stopped in a manner that causes no safety problems.

  Note that the processing based on the plurality of reference values in steps S5 and S6 is an example of the present embodiment, and the processing of the present invention is not limited to this.

  Moreover, although the above demonstrated as an example in case the play allowance X of the mechanical engagement lock 25 was inspected, it can implement similarly when inspecting the allowance Y of the mechanical engagement lock 25. For example, if it is required that Zmm or more is secured as the hook Y of the mechanical engagement lock 25 even when the landing lock switch 19 is OFF, the inspection is performed as follows. Can be implemented. First, similarly to the above, the inclined portion 37 of the vane 29 is brought into contact with the movable drive roller 27 to turn off the landing lock switch 19, and the second piece 25b of the mechanical engagement lock 25 is further lifted by Zmm therefrom. The lock arm 23 is swung so that the After that, if the car door is opened, and the mutual contact between the first piece 25a and the second piece 25b can be detected from the detection result of the door opening torque detection means 9, the landing lock switch 19 is turned off. At least the hook allowance Y of the mechanical engagement lock 25 can be confirmed to be secured to Z mm or more, and the hook allowance Y can be inspected.

  According to the interlock inspection method according to the present embodiment described above, it is not necessary to get on and off the car of the professional engineer and to stop the elevator service associated therewith, so that there is little influence on the operation of the elevator. The interlock can be checked at.

  In addition, since there is no need for specialists to get on and off the car, there is little need to check each hall together and the inspection mode can be started quickly. By using the inspection and recording for each landing unit, the inspection of the interlock of the entire elevator can be completed. In the meantime, if there is a call from any of the halls, there will be no specialists getting on and off the car, so immediately stop the inspection mode and promptly return to normal operation of the elevator. You can also.

  In addition, remote inspections and automatic inspections are possible because specialist engineers can always perform inspections without visiting the site.

  Furthermore, in order to obtain such a preferable advantage, it is possible to carry out only by adding the light data storage function and the inspection operation / inspection determination program by diverting the existing configuration of the elevator.

  Furthermore, this inspection method is realized by intentionally causing the vane to operate at a position different from the normal operation, and no additional equipment such as a dedicated jig or detector is required. In order to install such extension equipment, the elevator service is not stopped, and a new inspection load such as inspection of the extension equipment does not occur.

  Although the contents of the present invention have been specifically described with reference to the preferred embodiments, various modifications can be made by those skilled in the art based on the basic technical idea and teachings of the present invention. It is self-explanatory.

  Since the present invention is carried out in a state where the car is intentionally shifted from an appropriate position with respect to the landing, for example, in the inspection of the landing door interlock on the lowest floor, the pit device at the bottom of the hoistway is There is a case where it is difficult to shift the car sufficiently below the landing on the lowest floor due to interference, and the upper inclined portion of the vane cannot be brought into contact with the movable drive roller. In preparation for such a case, for example, as shown in FIG. 5, an intermediate inclined portion 137 is provided near the lower side of the vane 29, and the lock arm 23 is slightly swung using the intermediate inclined portion 137. Thus, this inspection method can also be carried out.

  Further, if the interlock state does not satisfy a predetermined standard as a result of the inspection, it is also effective to configure a further alarm.

  3 Interlock, 5 Car lifting / lowering detection means, 7 Door opening detection means, 9 Door opening torque detection means, 11 Inspection operation control section, 13 Inspection determination section, 19 Stop lock switch (electric switch), 23 Lock arm, 25 mechanical engagement lock, 27 movable drive roller, 29 vane, 35 body portion, 37, 137 inclined portion.

Claims (2)

It is a method for checking the interlock of the landing doors that are unlocked in response to the opening operation of the elevator car doors.
The interlock includes at least a lock arm provided on the landing door side, an electrical switch, a mechanical engagement lock and a movable drive roller, and a vane provided on the car door side,
The lock arm is swingably provided,
The electrical switch and the mechanical engagement lock are switched and unlocked by swinging the lock arm,
The vane includes a main body part extending along the ascending / descending direction, and an inclined part extending inclined from the main body part with respect to the ascending / descending direction,
Moving the car door to a position shifted in the ascending / descending direction with respect to the landing door, bringing the inclined portion of the vane into contact with the movable drive roller,
Accordingly, an interlock inspection method for inspecting at least a play allowance or a hook allowance of the mechanical engagement lock by causing the car door to open the door while the electric switch is switched. The landing door interlock that is unlocked in response to the door opening operation of the car door,
A car lift amount detecting means for detecting the lift amount of the car;
A door opening amount detecting means for detecting the door opening amount of the car door;
An elevator comprising door opening torque detecting means for detecting the door opening torque of the car door,
The interlock includes at least a lock arm provided on the landing door side, an electrical switch, a mechanical engagement lock and a movable drive roller, and a vane provided on the car door side,
The lock arm is swingably provided,
The electrical switch and the mechanical engagement lock are switched and unlocked by swinging the lock arm,
The vane includes a main body part extending along the ascending / descending direction, and an inclined part extending inclined from the main body part with respect to the ascending / descending direction,
The elevator further includes an inspection operation control unit and an inspection determination unit,
The inspection operation control unit moves the car door to a position shifted in the ascending / descending direction with respect to the landing door, and brings the inclined portion of the vane into contact with the movable drive roller, thereby With the automatic switch switched, the car door is operated to open,
The inspection determination unit inspects at least a play allowance or a hook allowance of the mechanical engagement lock based on a detection result of a lift amount of the car, a door opening amount of the car door, and a door opening torque of the car door. elevator.

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