JP2010159154A - Elevator maintenance support system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automatically turn facilities for maintenance work to non-operative if the maintenance work is finished in an elevator maintenance support system. <P>SOLUTION: In an elevator maintenance support system 10, a proximity sensor 28, for detecting whether an operation tag 30 is attached or not, is provided at each elevator landing on each floor, and the detected data is transmitted to a controller 40. An operating panel 32 of a car 22 is provided with an under-car light on/off switch 34 for an under-car light 36 used during maintenance work. The on/off state also is transmitted to the controller 40. The controller 40 changes the under-car light 36 from the operative state to the non-operative state when the under-car light on/off switch 34 is off or the detection of the attachment of the operation tag 30 among the plurality of the proximity sensors 28 is at most one or fewer. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an elevator maintenance support system, and more particularly to an elevator maintenance support system that supports operation / non-operation of a maintenance work facility used in maintenance work.

  In the case of elevator maintenance, that is, elevator maintenance work, there is equipment for maintenance work that is used for maintenance work instead of equipment to be maintained. For example, a pit lamp that is lit to facilitate work in the pit at the bottom of the hoistway, a ventilation fan that operates during summer work, and the like are used during maintenance work. These are activated during maintenance work, and are deactivated when the maintenance work is completed.However, when the maintenance work is completed, these maintenance work equipments are deactivated. It can happen that you forget to do.

  In order to prevent this, for example, in Patent Document 1, as an elevator work light and pit light turn-off forgetting prevention device, a stopper mechanism is attached to the cover cover of the inspection light switch box, and when the inspection light switch is pressed, a stopper pin is provided. A configuration is disclosed in which the cover lid does not close if the inspection light switch is forgotten to be turned off.

JP-A-10-53380

  For example, if the worker leaves the pit light and forgets to turn off the light, the light leaks from the gap between the car and the hoistway, and a report may be received from the user. Is requested to go out and turn off. According to the method of Patent Document 1, it is possible to prevent forgetting to turn off by noticing that the switch box for inspection and the like is not closed, but it is possible that an operator may leave without noticing this.

  An object of the present invention is to provide an elevator maintenance support system that can automatically deactivate a maintenance work facility when a maintenance work is completed.

  The elevator maintenance support system according to the present invention is provided at each of the elevator floors of a plurality of floors, and includes a plurality of work tag attachment detecting means for detecting whether or not work tags are attached to each floor, and during maintenance work. ON / OFF changeover switch for maintenance work equipment to be used and a control unit for controlling operation / non-operation of the maintenance work equipment, and the ON / OFF changeover switch is in an ON state, and detection of a plurality of work tag attachments. When it is detected that at least two or more work tags are attached in the means, the maintenance work equipment is switched from the inactive state to the active state, and the ON / OFF switch is in the OFF state or a plurality of work Switch the maintenance equipment from the operating state to the non-operating state when the number of detections that the work tag is attached is at most 1 or less. A control unit that, characterized in that it comprises a.

  Further, in the elevator maintenance support system according to the present invention, when the specific floor in the maintenance work is determined, the control unit has the ON / OFF changeover switch in the ON state, and the plurality of work tag attachment detection means specify the specific floor. When it is detected that a work tag on the floor is attached, or when it is detected that at least two work tags other than the specific floor are attached, the maintenance work equipment is changed from the inoperative state to the activated state. The switch, ON / OFF switch is in the OFF state, or a plurality of work tag attachment detection means detects that a work tag on a specific floor is not attached, and further detects that a work tag is attached. When is at most 1 or less, it is preferable to switch the maintenance facility from the operating state to the non-operating state.

  In the elevator maintenance support system according to the present invention, the maintenance work facility is preferably a car downlight provided under the elevator car or a car uplight provided on the elevator car.

  With the above configuration, the elevator maintenance support system has the ON / OFF changeover switch for the maintenance work facility turned ON, and that at least two work tags are attached among the plurality of work tag attachment detection means. When detected, the maintenance work equipment is switched from the non-operational state to the operation state, and the ON / OFF switch for the maintenance work equipment is in the OFF state, or the work tag is attached in a plurality of work tag attachment detection means. When the detection of being carried out is at most 1 or less, the maintenance work facility is switched from the operating state to the non-operating state.

  The work tag is a display tag for notifying a general user that maintenance work is being performed and the elevator cannot be used when performing maintenance work on the elevator. This work tag is posted at the elevator landing on each floor at the start of the elevator maintenance work, and is removed after the maintenance work is completed. Since the posting and removal of the work tag is a regular process performed at the time of each maintenance work, it is considered that it is extremely rare for an operator to forget this process.

  According to the above configuration, when the ON / OFF switch for the maintenance work facility is in the OFF state, or when it is detected that the work tag is attached among the plurality of work tag attachment detection means at most 1 or less. Then, the maintenance equipment is switched from the operating state to the non-operating state. Since this switching is automatically performed if the conditions are met, even if forgetting to turn off the ON / OFF switch for the maintenance work facility, it is detected that most work tags have been removed, The maintenance equipment is automatically deactivated.

  It is conceivable that a third party or the like removes the work tag during the maintenance work. However, according to the above configuration, if the ON / OFF changeover switch for the maintenance work equipment is in the ON state, at least two or more. As long as the work tag is attached, the maintenance equipment will not be inoperative. Therefore, even if one work tag is removed for some reason, for example, maintenance work is not hindered.

  Further, in the elevator maintenance support system, when a specific floor in the maintenance work is determined, the ON / OFF changeover switch is in an ON state, and a plurality of work tag attachment detection means are attached with work tags on the specific floor. When it is detected, or when it is detected that at least two or more work tags other than the specific floor are attached, the maintenance work facility is switched from the inoperative state to the activated state. The specific floor is a floor that is particularly frequently used during maintenance work, and is generally the lowest floor closest to the pit at the bottom of the hoistway. This specific floor is the floor where workers enter and exit the most frequently, and is the floor where the entry of the user is most unfavorable compared to other floors. Therefore, at least when a work tag of this specific floor is attached, it is convenient to set the work facility in an operating state even if a work tag of another floor is removed.

  Even when a specific floor for maintenance work is determined, the ON / OFF switch is in an OFF state, or a plurality of work tag attachment detection means detect that a work tag of a specific floor is not attached. Furthermore, when the detection that the work tag is attached is at most 1 or less, the maintenance work facility is switched from the operating state to the non-operating state. By this, even if you forget to turn off the ON / OFF switch for maintenance work facilities, you can detect that you have removed work tags on a specific floor and have removed most other work tags. The maintenance equipment is automatically deactivated.

  In the elevator maintenance support system, the maintenance work facility is a car downlight provided under the elevator car or a car uplight provided on the elevator car. Since the hoistway is generally dark in a sealed space, there are many opportunities to work with the lights on, so there is often a chance to forget to turn it off after the maintenance work. According to the above configuration, these lights can be automatically turned off by using the detection of the removal of the work tag.

It is a figure which shows the structure of the elevator maintenance assistance system in embodiment which concerns on this invention. In embodiment which concerns on this invention, it is a flowchart explaining the procedure regarding the action | operation / non-operation of a car lower lamp in a maintenance work. In embodiment which concerns on this invention, it is a figure explaining especially lighting conditions among the judgment logic tables regarding the action | operation / non-operation of the car lower light of a control part. In embodiment which concerns on this invention, it is a figure explaining the light extinction conditions especially among the judgment logic tables regarding the action | operation / non-operation of the car lower light of a control part.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following, a car lower light that illuminates the inside of a hoistway under the car will be described as an elevator maintenance work equipment, but this is only an example, and any maintenance work equipment provided with an ON / OFF switch may be used. . For example, it may be a car lamp that illuminates the inside of a hoistway on the car, or may be a pit lamp or a hoistway lamp that is fixed to the hoistway. Further, it may be a ventilation fan or a fan used for maintenance work in summer. In addition, in the following, as an elevator, a case where there are four or more floors on which work tags are posted will be described, but if there is a specific floor, it may be a building with at least three floors, If there is no specific floor, the present invention can be applied to any building that has at least two or more landing floors.

  Below, the same code | symbol is attached | subjected to the same element in all the drawings, and the overlapping description is abbreviate | omitted. In the description in the text, the symbols described before are used as necessary.

  FIG. 1 is a diagram illustrating a configuration of an elevator maintenance support system 10. FIG. 1 shows an elevator facility provided in a building on the sixth floor.

  The hoistway 12 in FIG. 1 is a space provided through the upper and lower floors of the building, and the car 22 and the balance weight 24 move up and down in this space, so that workers also enter this except during maintenance inspections. There are few things.

  The pit 14, which is the lowest part of the hoistway 12, is provided on the lower layer side than the lowermost layer of the building, and several elevator operation devices, facilities, and the like are arranged here. The machine room 16 provided on the roof of the building is a space in which the lifting rotary electric machine 18, the control unit 40, and the like are arranged. Therefore, as maintenance of the elevator, an operator often performs predetermined maintenance work in the machine room 16, the pit 14, and the car 22.

  The lifting rotary electric machine 18 is connected to the main rope 20 by changing the moving direction of the main rope 20 by winding or unwinding the main rope 20 wound around the rotating body provided on the output shaft. This is an electric motor having a function of raising and lowering the car 12. An AC motor can be used as the lifting electric rotating machine 18.

  The passenger car 22 is a transport car that moves up and down in the hoistway 12 and moves between target floors in accordance with instructions from passengers and the like. The balance weight 24 is a weight for reducing the driving load of the lifting rotary electric machine 18 in balance with the mass of the car 12.

  An operation panel 32 provided in the passenger car 22 is an operation panel provided with a destination floor registration button for a user to specify a destination floor, and a lockable door is provided at a part thereof. When the door is opened using a predetermined key, several switches for maintenance work are provided. The inside of the door is sometimes called a maintenance operation panel or the like. Here, these are collectively called an operation panel 32.

  A car down light ON / OFF switch 34 provided on the operation panel 32 is one of the maintenance work switches provided on the inner side of the above-mentioned key door, and is an ON / OFF switch for maintenance work equipment. . That is, the car lower light ON / OFF switch 34 is a switch operated by an operator for turning on and off the car lower light 36 which is a maintenance work facility. The car lower light ON / OFF switch 34 is connected to the control unit 40 of the machine room 16 through the hoistway 12 using an appropriate signal cable.

  In addition, even though the car lower light ON / OFF switch 34 was turned ON when the maintenance work was started, forgetting to return the car lower light ON / OFF switch 34 to OFF when the maintenance work was completed. It is a problem to be solved by the present invention that the car lower light 36 continues to be lit.

  The car lower light 36 is an illuminating lamp provided on the bottom surface of the car 22 mainly for the convenience of maintenance work in the pit 14. The two electric wires of the car lower light 36 are connected to the control unit 40 of the machine room 16 through the hoistway 12.

  The proximity sensor 28 provided at the elevator hall on each floor of the building is a work tag attachment detection means provided at a location where the work tag 30 is attached and having a function of detecting that the work tag 30 is attached. As the proximity sensor 28, a magnetic detection sensor that detects a mounting magnet that is integrally attached to the work tag 30 can be used. In addition, a light emitting / receiving element may be used as the optical proximity sensor, or a capacitive proximity sensor may be used. The detection signal of the proximity sensor 28 on each floor is transmitted to the control unit 40 of the machine room 16 via an independent signal line.

The work tag 30 is a display tag for notifying a general user that maintenance work is being performed and the elevator cannot be used when performing maintenance work on the elevator.
As an example, a strip-shaped plastic plate with a length of about 20 cm to about 30 cm and a width of about 5 cm to about 10 cm has a precaution such as “Unavailable during inspection” or “Not available during operation”. It is a written label.

  The work tag 30 needs to be posted on the elevator hall, but the most commonly posted location is the upper side of a three-way frame that is a metal frame surrounding the hall door. A magnet is affixed to the back surface of the work tag 30 so that it can be easily attached to the metal three-way frame. When the proximity sensor 28 uses the magnetic detection method, the magnetism from the magnet on the back of the work tag is detected.

  At the start of the elevator maintenance work, the work tags 30 are calculated by the workers, brought to the work site, and sequentially posted on the elevator landing on each floor. When the maintenance work is finished, the notice is removed and the number is confirmed and collected. As described above, since the posting and removal of the work tag is a steady process performed while counting each maintenance work, it is considered very rare for the worker to forget this process.

  In FIG. 1, the elevator hall on the first floor is the floor closest to the pit 14 in the maintenance work, and is the easiest floor in the building. From these facts, the elevator hall on the first floor has a special meaning in the maintenance work than the elevator hall on other floors. The elevator hall on the specific floor 26 is a floor that is particularly frequently used during maintenance work, and is the floor where workers enter and exit most frequently, and it is also the floor where the entry of users is the least preferred compared to other floors. Therefore, the role of posting the work tag 30 on the specific floor 26 is more important than other floors. In the example of FIG. 1, the first floor is the specific floor 26, but other floors may of course be the specific floor 26 depending on the circumstances of the building.

  The control unit 40 provided in the machine room 16 has a function of controlling the operation of each element constituting the elevator facility as a whole. In particular, here, control related to the operation / non-operation of the car lower lamp 36 before and after maintenance work is performed. It has a function to perform.

  Specifically, it has two functions regarding the operation / non-operation of the car lower light 36. First, when maintenance work is completed, even if you forget to turn off the car light on / off switch 34 of the operation panel 32, the removal of the work tag 30 is used to automatically lower the car. This is a function for turning off the lamp 36. Another function is that when the operation of the car lower light 36 is activated / deactivated using the detection of the work tag 30, even if the work tag 30 is removed by a third party, the maintenance work is still in progress. This is a function that keeps the car lower light 36 lit continuously when the car lower light ON / OFF switch 34 is ON.

  Specifically, as the former function, when the car lamp light ON / OFF switch 34 is in an OFF state or the detection that the work tag 30 is attached among the plurality of proximity sensors 28 is at most 1 or less. Then, the car lower light 36 is switched from the operating state to the non-operating state. As a result, even if the car lower light ON / OFF switch 34 is forgotten to be turned off, the car lower light 36 is automatically turned off when the worker removes most of the work tags 30.

  In the example of FIG. 1, since the specific floor 26 is set, the above conditions are changed as follows. In other words, the car light ON / OFF switch 34 is in the OFF state, or the plurality of proximity sensors 28 detect that the work tag 30 of the specific floor 26 is not attached, and the work tag 30 is attached. When the detection of being present is at most 1 or less, the car lower lamp 36 is switched from the activated state to the deactivated state. As a result, even if the operator forgets to turn off the car lower light ON / OFF switch 34, when the worker removes the work tag 30 on the specific floor 26 and removes most other work tags 30, The car lower light 36 is automatically turned off.

  Specifically, as the latter function, when the car lower light ON / OFF switch 34 is in the ON state, and it is detected that at least two work tags are attached among the plurality of proximity sensors 28, The car lower light 36 is switched from the non-operating state to the operating state. Alternatively, the operating state is maintained. Therefore, the car lower light 36 is not lit only by the worker switching the car lower light ON / OFF switch 34 to the ON state. However, since work tags 30 are always attached to each floor during maintenance work, the car lamp light ON / OFF switch 34 is normally switched on after the work tags 30 are attached to each floor. Such conditions may be used.

  On the other hand, even if the work tag 30 is removed by a third party during the maintenance work, the car lower light 36 is not turned off while at least two work tags 30 remain unremoved. A situation in which a third party not only removes one work tag 30 but also removes all work tags 30 or leaves one work tag 30 and removes another work tag 30 is an abnormal state. The car lower light 36 is turned off, so that the worker notices an abnormal state.

  In FIG. 1, the first floor is the specific floor 26, but workers frequently enter and leave the elevator hall on this floor. Therefore, the lighting continuation condition is changed as follows. That is, when the specific floor 26 in the maintenance work is determined, the car lamp light ON / OFF switch 34 is in the ON state, and the plurality of proximity sensors 28 detect that the work tag 30 of the specific floor 26 is attached. Or when it is detected that at least two work tags 30 other than the specific floor 26 are attached, the car lower light 36 is switched from the inoperative state to the activated state. Alternatively, the operating state is maintained.

  Therefore, even if a large number of work tags 30 are removed by a third party, the car lower light 36 is not turned off while the detection of the installation of the work tags 30 on the first floor, which is the specific floor 26, is continued. Does not interfere with work.

  The operation of the above configuration will be described in more detail with reference to FIGS. FIG. 2 is a flowchart for explaining a procedure relating to operation / non-operation of the car lower lamp 36 in maintenance work. 2 is not a function of the control unit 40 but an operator's operation or the like, and the procedure shown by the solid line frame is a function executed by the control unit 40. FIGS. 3 and 4 are determination logic tables regarding the operation / non-operation of the car lower lamp 36 of the control unit 40, taking as an example a building having four floors with elevator floors.

  In FIG. 2, when performing maintenance work, first, the worker attaches the work tag 30 to a predetermined posting location on each floor (S10). Accordingly, each proximity sensor 28 detects that the work tag 30 is attached, and the control unit 40 acquires the detection data. When the worker finishes attaching the work tags 30 to all the floors, the landing door and the car door are opened on the first floor which is the specific floor 26, the worker gets on the car 22 and the key on the operation panel 32 is locked. And the car lower light ON / OFF switch 34 is turned on (S12). This state is acquired by the control unit 40 via an appropriate signal cable.

  Next, the control unit 40 determines whether or not the lighting condition of the car lower light 36 is satisfied based on the detection state of each proximity sensor 28 and the state of the car lower light ON / OFF switch 34 (S14). ). Since the specific floor 26 is determined as the lighting condition of the car lower light 36 as described above, the car lower light ON / OFF switch 34 is in the ON state, and the plurality of proximity sensors 28 are the work tags of the specific floor 26. This means that it is detected that 30 is attached, or that it is detected that at least two work tags 30 other than the specific floor 26 are attached.

  When this lighting condition is not satisfied, the car lower lamp 36 is set to an inoperative state = a light-off state (S16). The worker returns to S10 and checks, for example, whether the work tag 30 is properly attached. On the other hand, when this lighting condition is satisfied, the car lower lamp 36 is switched from the inoperative state to the activated state, or is maintained in the activated state (S18). Then, specific maintenance work is performed. During the maintenance work, the determination in S14 is always made. If the lighting condition is not satisfied, the process proceeds to S16, and the car lower lamp 36 is turned off.

  FIG. 3 is a logical table showing lighting conditions. In FIG. 3, the number of floors of the building is assumed to be the fourth floor, and the states of the four proximity sensors 28 are shown as 1 for the attachment detection state of the work tag 30 and 0 for the non-attachment detection state. As shown in FIG. 3, when the car lower light ON / OFF switch 34 is OFF, the car lower light 36 is inactive = extinguished regardless of the detection state of the work tag 30. When the car lower light ON / OFF switch 34 is ON, the attachment of the work tag 1 on the specific floor 26 is detected, or at least two of the work tags 2, 3 and 4 on the other floors are detected. When the attachment of the work tag 30 is detected, the car lower light 36 is turned on, or the state is maintained when already turned on.

  Returning to FIG. 2 again, when the maintenance work is finished (S20), the worker opens the landing door and the car door on the first floor, which is the specific floor 26, and the worker gets on the car 22 and turns off the car. The ON / OFF switch 34 is turned off (S22). This state is acquired by the control unit 40 via an appropriate signal cable. Then, the work tags 30 on each floor are sequentially removed and removed (S24). Accordingly, each proximity sensor 28 transmits non-attachment detection data of the work tag 30 to the control unit 40.

  Next, the control unit 40 determines whether or not the condition for turning off the car lower light 36 is satisfied based on the detection state of each proximity sensor 28 and the state of the car lower light ON / OFF switch 34 (S26). ). Since the specific floor 26 is determined as described above for the turn-off condition of the car lower light 36, the car lower light ON / OFF switch 34 is in an OFF state or a plurality of proximity sensors 28 are connected to the specific floor 26. When it is detected that the work tag 30 is not attached, and the detection that the work tag 30 is attached is at most 1 or less, the car lower light 36 is switched from the operating state to the non-operating state. That is, the car lower light 36 is automatically turned off (S28).

  FIG. 4 is a logic table showing the turn-off conditions. As shown in FIG. 4, when the car lower light ON / OFF switch 34 is OFF, the car lower light 36 is inactive = extinguished regardless of the detection state of the work tag 30. When the car lower light ON / OFF switch 34 is ON, attachment of the work tag 1 on the specific floor 26 is not detected, and at most one of the work tags 2, 3, and 4 on the other floors. When only the work tag 30 is detected as being attached, the car lower light 36 is automatically turned off. As shown in FIG. 4, as long as the worker normally removes the work tag 30, S26 is hardly denied.

  3 is described as the lighting condition, and FIG. 4 is described as the extinguishing condition. However, these conditions are a logical table of operation / non-operation regarding the car lower light 36 and are not contradictory to each other. Therefore, FIG. 3 shows a logical table that is originally one of the logical tables, and FIG. 4 shows a case where the light is turned off.

  As described above, with regard to the operation / non-operation of the car lower light 36, the maintenance work is completed by taking into account the mounting state of the work tag 30 together with the state of the car lower light ON / OFF switch 34 operated by the operator. Nevertheless, if the car lower light ON / OFF switch 34 is forgotten to be turned off, the car lower light 36 can be automatically turned off.

  DESCRIPTION OF SYMBOLS 10 Elevator maintenance support system, 12 hoistway, 14 pits, 16 machine room, 18 rotary electric machine for raising / lowering, 20 main rope, 22 passenger car, 24 balance weight, 26 specific floor, 28 proximity sensor, 30 work tag, 32 operation panel , 34 Car lower light ON / OFF switch, 36 Car lower light, 40 Control unit.

Claims (3)

A plurality of work tag attachment detection means for detecting whether or not work tags are attached to each floor, provided at each of the elevator floors of the plurality of floors;
ON / OFF switch for maintenance work equipment used during maintenance work,
A control unit for controlling the operation / non-operation of the facility for maintenance work, wherein the ON / OFF switch is in an ON state, and at least two or more work tags are mounted among a plurality of work tag mounting detection means. When this is detected, the maintenance work equipment is switched from the inactive state to the active state, and the ON / OFF switch is in the OFF state, or the work tag is mounted in a plurality of work tag mounting detection means. A control unit that switches the maintenance facility from an operating state to a non-operating state when detection of at most 1 or less,
An elevator maintenance support system characterized by comprising: In the elevator maintenance support system according to claim 1,
The control unit
When a specific floor is set for maintenance work,
When the ON / OFF switch is ON,
When a plurality of work tag attachment detection means detects that a work tag of a specific floor is attached, or when it detects that at least two or more work tags other than a specific floor are attached,
Switch maintenance work equipment from inactive to active,
ON / OFF switch is in the OFF state, or
When a plurality of work tag attachment detection means detects that a work tag of a specific floor is not attached, and when the detection that a work tag is attached is at most 1 or less,
An elevator maintenance support system characterized by switching maintenance equipment from an operating state to a non-operating state. In the elevator maintenance support system according to claim 1,
The elevator maintenance support system is characterized in that the maintenance work facility is a car down light provided under the elevator car or a car up light provided on the elevator car.

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