JP6140943B2 - Elevator working safety ensuring device and working safety ensuring method - Google Patents

Description

  The present invention relates to an elevator safety ensuring device and an operation safety ensuring method.

  In elevator maintenance, refurbishment and repair work, an operator often enters the hoistway to perform work. In particular, in maintenance / inspection work, the car and the counterweight may be moved at a low speed while the worker is on the car or in the pit.

  As a method for ensuring the safety of an operator in a pit, for example, Patent Document 1 discloses an elevator weight approach warning device. In this device, a sensor for detecting the presence of an operator is provided in the pit. On the other hand, a counterweight and a weight guide rail in the hoistway are provided with a magnet and a magnetic force sensor, and work is performed in the pit. When there is a person and when a weight approaches the pit, an alarm device fixed to the pit is activated to issue an alarm.

Japanese Patent Laid-Open No. 7-237838

  In the apparatus disclosed in Patent Document 1 described above, a certain level of alerting can be performed by issuing an alarm to an operator in the pit. If the worker is immersed in the work, there is a risk that it will be late to notice the alarm. Moreover, even if the installation position of the alarm device is changed outside the pit, depending on the relationship between the installation position of the alarm device, the work position of the worker, the state of noise such as work sound, and the direction of the line of sight during the work May still be late in noticing the warning.

  The present invention has been made in view of the above, and an elevator that can make a worker recognize the presence or absence of an alarm more reliably regardless of the presence or absence of noise, the orientation of the worker, and the work position of the worker. It aims at providing the safety ensuring device etc. at the time of work.

In order to achieve the above-described object, an elevator safety ensuring device according to the present invention includes an alarm control unit, a car position detection unit that detects the position of a car in the hoistway, and a counterweight in the hoistway. A counterweight position detector for detecting a position, and at least one portable vibrator, wherein the portable vibrator vibrates due to the presence of a wireless alarm output command from the alarm controller, and the alarm controller Based on the detection results of the car position detecting unit and the counterweight position detecting unit, when the counterweight approaches the upper part of the car and at least one of when the counterweight approaches the pit of the hoistway The alarm output command is transmitted to the portable vibrator.
Furthermore, in order to achieve the same object, the present invention uses the above-described elevator safety ensuring device according to the present invention, and an operator works safely while the operator carries the corresponding portable vibrator. The securing method is also included.

  According to the elevator safety ensuring device of the present invention, it is possible to make a worker recognize the presence or absence of an alarm more reliably regardless of the presence or absence of noise, the orientation of the worker, and the work position of the worker.

It is the figure which illustrated typically the elevator to which Embodiment 1 of this invention is applied. It is a figure which shows the structure of the working safety ensuring apparatus of the elevator which concerns on Embodiment 1. FIG. It is a figure of Embodiment 2 related to Embodiment 2. It is a figure of Embodiment 3 regarding Embodiment 3. It is a figure of Embodiment 5 related to Embodiment 5. It is a figure of Embodiment 5 regarding the fifth embodiment.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of an elevator safety ensuring device and a work safety ensuring method according to the present invention will be described below with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same or corresponding parts.

Embodiment 1 FIG.
FIG. 1 is a diagram schematically illustrating an elevator to which the first embodiment is applied. FIG. 2 is a diagram showing the configuration of the elevator safety ensuring device according to the first embodiment.

  The elevator 1 has a hoistway 3 extending vertically, and a car 5 and a counterweight 7 are provided in the hoistway 3. Each of the car 5 and the counterweight 7 is guided so as to move up and down stably by a well-known guide rail (not shown).

  A hoisting machine 9 is provided in the upper part of the hoistway 3, and a rope 11 is wound around the hoisting machine 9. The car 5 is suspended from the portion of the rope 11 extending from one side of the hoisting machine 9, and the counterweight 7 is suspended from the portion of the rope 11 extending from the other side of the hoisting machine 9. With such a configuration, when the rope 11 is driven by the hoisting machine 9, the car 5 and the counterweight 7 are raised and lowered in opposite directions.

  Next, the elevator safety ensuring device according to the first embodiment will be described mainly based on FIG. The elevator safety device 21 includes an alarm control unit 23, a car position detection unit 25, a counterweight position detection unit 27, and at least one portable vibrator 29.

  The car position detector 25 and the counterweight position detector 27 detect the positions of the car and the counterweight in the hoistway, respectively. Details of the car position detection unit 25 and the counterweight position detection unit 27 are not particularly limited. However, the car position detection unit 25 and the counterweight position detection unit 27 may be individual means corresponding to the car and the counterweight. However, the detection means may be a single one.

  As some known examples of the car position detection unit 25 and the counterweight position detection unit 27, for example, the amount of movement of the rope 11 is detected by an encoder added to the hoisting machine 9, The mode which calculates | requires the position of the cage | basket | car 5 and the counterweight 7 in a hoistway from a movement amount may be sufficient. As another example, a plurality of switches fixed to the hoistway 3 side and a cam member fixed to the car 5 are used, and the state of the switch corresponding to the cam member is switched as the car 5 moves up and down. It is also possible to detect the position of the car 5 (and the position of the counterweight 7 based on it).

  Based on the detection results of the car position detection unit 25 and the counterweight position detection unit 27, the alarm control unit 23 detects when the counterweight 7 approaches the upper part of the car 5 and when the counterweight 7 is in the pit 3a below the hoistway 3. An alarm output command is transmitted to the portable vibrator 29 when at least one of the two approaches. In particular, in the first embodiment, an alarm output command is transmitted when the counterweight 7 approaches the upper part of the car 5 and when the counterweight 7 approaches the pit 3 a of the hoistway 3.

  Further, the alarm control unit 23 may be newly prepared as a dedicated device / equipment, or may be prepared in a form that is structurally or functionally added to an existing control device / equipment. In this Embodiment 1, it shall be provided in the aspect which adds a function to the existing control panel provided in the hoistway 3 or its vicinity.

  The portable vibrator 29 is a device that is carried by an operator and vibrates due to the presence of a wireless alarm output command from the alarm control unit 23. Each of the portable vibrators 29 is wirelessly connected to the alarm control unit 23. Each of the portable vibrators 29 according to the first embodiment is set to always vibrate when receiving an alarm output command from the alarm control unit 23. It is preferable that the alarm output command transmitted from the alarm control unit 23 is adjusted to an output mode that is strong enough to reach within the target hoistway 3.

  As described above, each portable vibrator 29 and the alarm control unit 23 are wirelessly connected. However, the car position detection unit 25, the counterweight position detection unit 27, and the alarm control unit 23 are wireless or What is necessary is just to be connected by either of wire.

  Next, a work safety ensuring method using the above-described elevator work safety ensuring device will be described. First, when the work on the car is performed, the corresponding worker 31A carries the corresponding portable vibrator 29A. During the work, when the counterweight 7 approaches the upper part of the car 5 or when the counterweight 7 approaches the pit 3a of the hoistway 3, an alarm output command is output by the alarm control unit 23. In response to this, the portable vibrator 29 </ b> A vibrates, and the vibration is transmitted to the worker 31 </ b> A who is working on the car, so that the counterweight 7 may be approaching the upper part of the car 5. Made.

  Similarly, when the work in the pit is performed, the corresponding worker 31B carries the corresponding portable vibrator 29B, and when the counterweight 7 approaches the upper part of the car 5 during the operation, the counterweight 7 When the vehicle approaches the pit 3a of the hoistway 3, an alarm output command is output by the alarm control unit 23. In response to this, the portable vibrator 29B vibrates, the vibration is transmitted to the worker 31B working on the car, and the counterweight 7 may be approaching the pit 3a of the hoistway 3 Aroused.

  Furthermore, even if the work on the car and the work in the pit occur temporarily at the same time, when the counterweight 7 approaches the upper part of the car 5 and the counterweight 7 Note that the portable vibrators 29A and 29B always vibrate each time when approaching the pit 3a, and the counterweight 7 may approach each of the workers 31A and 31B. Aroused.

  According to the first embodiment configured as described above, an operator is alerted with vibrations acting on his / her body in a scene that may require attention around him / her. Regardless of the presence or absence of noise at the place and the direction of the operator's orientation, the operator can obtain an advantage that the alarm can be recognized more reliably. Also, the alarm is not issued from an alarm device fixed at a specific location in the hoistway, but from a portable vibrator that is carried by the operator and moved with the operator. Regardless of the position, the advantages described above are always obtained. Further, in the first embodiment, the alarm control unit uniformly provides an alarm output command, and the portable vibrator vibrates when the alarm output command is uniformly received. It is possible to reliably avoid a situation in which an alarm is obtained without going through a selection operation, and an alarm cannot be obtained if such a prior operation is forgotten.

Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described. FIG. 3 is a diagram of the same mode as FIG.

  In the second embodiment, the alarm control unit 23 provides information on the work date and time when the work is scheduled and the individual information of the portable vibrator that the worker is scheduled to carry for each of the work on the car and the work in the pit. It is different from the above embodiment in that it is obtained in advance. Here, there are several specific modes in which the alarm control unit 23 obtains the information.

  As shown in FIG. 3, the elevator operating safety ensuring device 121 may further include a registration terminal unit / registration data holding unit 133. The registered terminal unit / registered data holding unit 133 is connected to the alarm control unit 23 as a component different from the alarm control unit 23 by wireless or wired. The registered terminal unit / registered data holding unit 133 is a registered terminal component that only inputs the above information. The information may be held by the alarm control unit 23, or the above information may be held. Alternatively, the component may be obtained by the alarm control unit 23 at an appropriate timing. Further, in the second embodiment, the registration terminal unit / registration data holding unit 133 is not essential, and the portable vibrator 29 also has the function of the registration terminal unit. It is also possible to carry out without providing the portion 133. That is, as conceptually indicated by reference numeral 135 in FIG. 3, the above-described information may be input from each portable vibrator 29, and the information may be retained by the alarm control unit 23. Furthermore, as another aspect, both the portable vibrator 29 and the registered terminal unit / registered data holding unit 133 have the function of the registered terminal unit, and if necessary, input information from the portable vibrator 29, Information may be input from the registered terminal unit / registered data holding unit 133, and the information may be held by the alarm control unit 23. In any case, for each of the work on the car and the work in the pit, the alarm control unit 23 provides information on the work date and time when there is a work schedule and individual information of the portable vibrator that the worker plans to carry. Obtained in advance.

  In the second embodiment, the alarm control unit 23 responds at each time when the counterweight 7 approaches the upper part of the car 5 and when the counterweight 7 approaches the pit 3a of the hoistway 3. The alarm output command is provided only to the portable vibrator 29 of the corresponding individual information only on the date and time when the work on the car or the work in the pit is scheduled to be performed. That is, the alarm output command includes the individual information 137 of the corresponding portable vibrator 29, and only the portable vibrator 29 corresponding to the individual information reacts and vibrates in the same manner as in the first embodiment. It becomes.

  According to the second embodiment configured as described above, as in the first embodiment, in a scene where the worker needs attention around himself, the user is alerted with vibrations acting on his / her body. Regardless of the presence or absence of noise at the work place and the orientation of the worker, there is an advantage that the worker can recognize the warning signal more reliably, and the work position of the worker and the alarm control unit The above-described advantages can be obtained without depending on the positional relationship. Further, in the second embodiment, a plurality of portable vibrators do not react uniformly, but only a specific portable vibrator reacts, so that a necessary alarm is obtained in relation to the actual work, and is unnecessary in the work. Therefore, it is possible to avoid a reduction in alerting power of the alarm due to the fact that it is possible to obtain even an alarm.

Embodiment 3 FIG.
Next, a third embodiment of the present invention will be described. FIG. 4 is a diagram of the same mode as FIG.

  In the elevator safety ensuring device 221 according to the third embodiment, when the counterweight 7 approaches the upper portion of the car 5, the alarm control unit 23 identifies that it is a car-on alarm in addition to the alarm output command. Information 239 is also provided, and when the counterweight 7 approaches the pit 3a of the hoistway 3, in addition to an alarm output command, identification information 239 that indicates an in-pit alarm is also provided.

  Further, each portable vibrator 229 vibrates only when an alarm output command with identification information 239 indicating that the alarm is on the car is received, or an alarm output with identification information 239 indicating that it is an alarm in the pit. A function 241 for selecting whether to vibrate only when a command is received is provided. The function 241 relating to the selection is performed by, for example, a selection performed by operating an input button provided on the portable vibrator 229 or a touch operation on a display screen provided on the portable vibrator 229. You can list things.

  As an example of operation, when an operator receives an alarm output command with identification information 239 indicating an on-car alarm based on whether he / she performs the work on the car or the work in the pit in advance, Whether to vibrate only, or to vibrate only when an alarm output command with identification information 239 indicating a pit alarm is received is selected. On the other hand, the alarm control unit 23 outputs an alarm output command and corresponding identification information 239 when the counterweight 7 approaches the upper part of the car 5 and when the counterweight 7 approaches the pit 3a of the hoistway 3, respectively. Is output. As a result, only the portable vibrator 229 that has received the alarm output command with the selected identification information 239 reacts and vibrates in the same manner as in the first embodiment.

  According to the second embodiment configured as described above, as in the first embodiment, in a scene where the worker needs attention around himself, the user is alerted with vibrations acting on his / her body. Regardless of the presence or absence of noise at the work place and the orientation of the worker, there is an advantage that the worker can recognize the warning signal more reliably, and the work position of the worker and the alarm control unit The above-described advantages can be obtained without depending on the positional relationship. Furthermore, in this Embodiment 3, since a plurality of portable vibrators do not react uniformly, but only a specific portable vibrator reacts, a necessary alarm is obtained in relation to actual work, and is unnecessary in that work. Therefore, it is possible to avoid a reduction in alerting power of the alarm due to the fact that it is possible to obtain even an alarm. Furthermore, in the third embodiment, as a work schedule registration in advance, even if there is no registration of information with volume, such as date and time, work contents, information on individual portable vibrators, etc., it is only a simple selection, Necessary alarms can be obtained in relation to actual work.

Embodiment 4 FIG.
Next, a fourth embodiment of the present invention will be described. As the fourth embodiment, a mode in which a mobile phone terminal with a vibration function is used as the portable vibrator 29 in the first to third embodiments described above. According to the fourth embodiment, in addition to obtaining the corresponding advantages of the first to third embodiments, it is possible to provide an alarm by vibration only by producing and functioning a relatively simple application. It is possible to reduce the increase in cost associated with the provision of dedicated equipment and devices and to increase the willingness to spread.

Embodiment 5. FIG.
Next, a fifth embodiment of the present invention will be described. 5 and 6 are diagrams of the same mode as in FIGS. 1 and 2, respectively, regarding the fifth embodiment.

  In the fifth embodiment, the elevator safety device 321 further includes an on-car detection unit 343 and a pit detection unit 345. The on-car detection unit 343 is provided in the upper part of the car 5, and the in-pit detection unit 345 is provided in the pit 3 a of the hoistway 3. The on-car detection unit 343 and the in-pit detection unit 345 are connected to the alarm control unit 23 wirelessly or by wire.

  When the portable vibrator 29 exists above the car 5, the on-car detection unit 343 detects the transmitting-side individual information 347 of the portable vibrator. When the portable vibrator 29 is present in the pit 3a, the in-pit detecting unit 345 detects the transmitting-side individual information 347 of the portable vibrator.

  When the counterweight 7 approaches the upper part of the car 5, the alarm control unit 23 is only for the portable vibrator 29 of the individual information that is recognized to be present on the upper part of the car 5 based on the detection result of the car upper detection part 343. An alarm output command is provided, and when the counterweight 7 approaches the pit 3a of the hoistway 3, based on the detection result of the in-pit detection unit 345, the portable vibrator 29 of individual information recognized as existing in the pit 3a Only provide a warning output command. Specifically, as in the second embodiment, the alarm control unit 23 also sends the reception-side individual information 337 of the corresponding portable vibrator 29 together with the alarm output command.

  As an example of the operation, for example, when the worker 31A carrying the portable vibrator 29A is working on the car 5, the portable vibrator 29A emits the individual information 347 on the transmission side. The individual information 347 is detected and recognized by the car detection unit 343. That is, the car detection unit 343 detects that the portable vibrator 29 is present above the car 5 and that the individual information of the portable vibrator 29 is specifically the individual information of the portable vibrator 29A. This detection result is sent to the alarm control unit 23.

  As another situation, when the worker 31B carrying the portable vibrator 29B is working in the pit 3a, the portable vibrator 29B emits the calling-side individual information 347, and this calling-side individual information 347 is It is detected and recognized by the in-pit detection unit 345. That is, the in-pit detection unit 345 detects that the portable vibrator 29 exists in the pit 3a and that the individual information of the portable vibrator 29 is specifically the individual information of the portable vibrator 29B. This detection result is sent to the alarm control unit 23.

  The alarm control unit 23 outputs an alarm output command when the counterweight 7 approaches the upper portion of the car 5 and when the counterweight 7 approaches the pit 3a of the hoistway 3, but the counterweight 7 When the car is approaching the upper part of the car 5, an alarm output command is provided only to the portable vibrator 29 </ b> A on the car 5 by sending the receiving side individual information 337 together with the counterweight 7. When the user approaches the pit 3a, the receiver individual information 337 is sent together to provide an alarm output command only to the portable vibrator 29B in the pit 3a. Accordingly, only the portable vibrator 29A or 29B corresponding to the individual information reacts and vibrates in the same manner as in the first embodiment.

  According to the second embodiment configured as described above, as in the first embodiment, in a scene where the worker needs attention around himself, the user is alerted with vibrations acting on his / her body. Regardless of the presence or absence of noise at the work place and the orientation of the worker, there is an advantage that the worker can recognize the warning signal more reliably, and the work position of the worker and the alarm control unit The above-described advantages can be obtained without depending on the positional relationship. Further, in the fifth embodiment, since a plurality of portable vibrators do not react uniformly but only a specific portable vibrator reacts, a necessary alarm is obtained in relation to the actual work, and is unnecessary in the work. Therefore, it is possible to avoid a reduction in alerting power of the alarm due to the fact that it is possible to obtain even an alarm. Further, in the fifth embodiment, since manual registration in advance and on-site operation are not required, a situation in which a necessary alarm cannot be obtained due to forgetting to perform such registration or operation is avoided. be able to.

  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.

  For example, as a scene where the alarm control unit transmits the alarm output command, in the above-described embodiment, the case where the car approaches the ceiling of the lifting space (for example, reference numeral 3b in FIG. 1) is included. Is also possible.

  DESCRIPTION OF SYMBOLS 1 Elevator, 3 hoistway, 3a pit, 5 car, 7 counterweight 21, 121, 221, 321 elevator safety ensuring device, 23 alarm control unit, 25 car position detector, 27 counterweight position detector, 29 Portable vibrator, 137, 337 Individual information, 239 identification information, 343 On-car detection unit, 345 In-pit detection unit.

Claims (3)

An alarm control unit;
A car position detector for detecting the position of the car in the hoistway;
A counterweight position detector for detecting the position of the counterweight in the hoistway;
With at least one portable vibrator,
The portable vibrator vibrates due to the presence of a wireless alarm output command from the alarm control unit,
When the counterweight approaches the upper part of the car and the counterweight approaches the pit of the hoistway based on the detection results of the car position detector and the counterweight position detector The alarm output command is transmitted to the portable vibrator at at least one of the following:
The alarm control unit
When the counterweight approaches the upper part of the car, in addition to the alarm output command, it also provides identification information indicating that the alarm is on the car,
When the counterweight approaches the pit of the hoistway, in addition to the alarm output command, it also provides identification information indicating that the alarm is in the pit,
The portable vibrator vibrates only when receiving the alarm output command accompanied by the identification information indicating that the alarm is on the car, or the alarm output command accompanied by the identification information indicating that the alarm is in the pit. There is a function to select whether to vibrate only when received or not,
Elevator working safety ensuring device. The apparatus for ensuring safety during operation of an elevator according to claim 1, wherein the portable vibrator is a mobile phone terminal with a vibration function . Using the elevator safety ensuring device according to claim 1 or 2 ,
An operator carries the corresponding portable vibrator to work.
How to ensure safety during elevator work.

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