JP2007168962A - Elevator device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator device capable of securing required safety related to the elevator doorway by arranging a detecting sensor for nonmechanically detecting foreign matter. <P>SOLUTION: This elevator device is arranged in an elevator door 7, and has the detecting sensor 11 outputting a foreign matter detecting signal by nonmechanically detecting the foreign matter, and has a forcibly door closing means 13b forcibly closing the elevator door 7 by invalidating the foreign matter detecting signal by detecting that a predetermined time passes after completing door opening of the elevator door 7 in response to the continuity or intermittent output of the foreign matter detecting signal, a door speed adjusting means 13b switching a door speed of the elevator door 7 to a predetermined low speed when forcibly closing the door and an attention arousing means 13b arousing attention to passengers when forcibly closing the door, and can meet the demand of a customer desiring to eliminate a safety shoe for performing mechanical detection from a reason for design, and can also promote safety of a user. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an elevator apparatus that prevents a human body or the like from being caught in an elevator door, and in particular, an elevator apparatus that performs opening / closing control of an elevator door using a detection sensor that is provided on the elevator door and detects a foreign object non-mechanically. About.

  In general, an elevator is provided with a safety shoe that can protrude from the vertical surface of the door of the elevator door in order to prevent a human body or the like from being caught in the elevator door, and depending on when the safety shoe is pressed, etc. It is known that a foreign object is detected in accordance with the retraction of the safety shoe, that is, mechanical means to stop or reverse the door closing operation of the elevator door.

  As a supplement to the safety shoe described above for the purpose of improving safety, a detection sensor that detects foreign matter non-mechanically, such as a multi-beam door sensor, is installed in the vicinity of the elevator door or the elevator door. There have been proposed elevators that detect passengers approaching an elevator door and foreign objects located between the elevator doors.

  In recent years, there is a safety sensor that detects foreign objects non-mechanically without installing safety shoes that detect foreign objects mechanically for reasons of design. An elevator to be secured is desired. However, the conventional detection sensor for non-mechanically detecting foreign matter is intended to supplement the safety shoe, and has a problem in securing the safety required for the elevator. For example, if the detection sensor continuously detects foreign objects due to malfunctions, etc., the service stops when the door continues to open, the doorway of passengers when the door is forcibly closed, and the detection sensor malfunctions due to smoke during a fire, etc. There is a risk that the opening will continue, smoke will enter the hoistway and the hoistway will become a chimney.

  The present invention was made from the actual situation in the above-described prior art, and an object of the present invention is to provide an elevator apparatus that can ensure the necessary safety related to the elevator entrance / exit by installing a detection sensor that non-mechanically detects foreign matter. It is to provide.

  In order to achieve the above object, the invention according to claim 1 of the present invention is a car position detecting means capable of determining whether or not a car that moves up and down a hoistway formed in a building is stopped in a door openable / closable area. And a detection sensor provided on the elevator door for detecting the foreign matter non-mechanically and outputting a foreign matter detection signal, and controlling the opening / closing of the elevator door based on the foreign matter detection signal and controlling the raising / lowering of the car In an elevator apparatus comprising a control means, it detects that a predetermined time has elapsed from the completion of opening of the elevator door according to the continuous or intermittent output of the foreign object detection signal, and invalidates the foreign object detection signal. Forced door closing means for forcibly closing the elevator door, and a door for switching the door speed of the elevator door to a predetermined low speed when the forced door is closed. And speed adjusting means, is characterized in that a arouse attention drawing means attention to passengers the forced door closing.

  In the invention according to claim 1 of the present invention configured as described above, the forced door closing means detects the foreign matter non-mechanically, and the detection sensor continuously or intermittently outputs the foreign matter detection signal. When it is detected that a predetermined time has elapsed, the foreign object detection signal is invalidated and the elevator door is forcibly closed. When the forced door is closed, the door speed adjusting means switches the door speed of the elevator door to a predetermined low speed, and the alerting means alerts the passenger. In this way, forcibly closing the elevator door under specified conditions prevents service stoppage due to continued door opening due to malfunction, etc., while at the same time reducing the door speed of the elevator door during forced door closing. By calling out, it is possible to prevent passengers from getting in and out of the door.

  Further, the invention according to claim 2 of the present invention is characterized in that the alerting means has an announcement part for performing voice guidance via a speaker.

  In the invention according to claim 2 of the present invention configured as described above, the announcement unit alerts by voice through the speaker during the forced door closing operation of the elevator door by the forced door closing means. As a result, passengers can grasp that the elevator door is closed, and can prevent the door contact.

  Furthermore, the invention according to claim 3 of the present invention is characterized in that the alerting means has a buzzer provided in the car.

  In the invention which concerns on Claim 3 of this invention comprised in this way, a buzzer rings at the time of the forced door closing operation of the elevator door by a forced door closing means, and alerts passengers. As a result, passengers can grasp that the elevator door is closed, and can prevent the door contact.

  Furthermore, in the invention according to claim 4 of the present invention, the forced door closing means is a predetermined value determined in advance from the completion of opening of the elevator door according to a fire detection signal output from a fire detection means provided in the building. The elevator door is forcibly closed by detecting that time has elapsed.

  In the invention according to claim 4 of the present invention configured as described above, the forced door closing means is a predetermined predetermined from the completion of the opening of the elevator door when a fire detection signal is output from the fire detection means provided in the building. When it is detected that time has passed, the elevator door is forcibly closed. As a result, it is possible to prevent a situation in which smoke enters the hoistway due to a fire and the hoistway becomes a chimney and expands the spread of fire.

  The invention according to claim 5 of the present invention further includes sensor abnormality detection means for detecting abnormality of the detection sensor and outputting an abnormality detection signal, and suspension means for pausing the elevator according to the abnormality detection signal. It is characterized by that.

  In the invention according to the fifth aspect of the present invention configured as described above, when the sensor abnormality detection means detects an abnormality of the detection sensor and outputs an abnormality detection signal, the suspension means pauses the elevator. As a result, it is possible to prevent any accident from occurring due to an abnormality of the detection sensor.

  The present invention can ensure the necessary safety concerning the elevator doorway by installing a detection sensor that detects foreign matter non-mechanically. Therefore, in addition to responding to the customer's request to eliminate safety shoes that perform mechanical detection for design reasons in elevators that are entirely glass-coated, the elevator users and elevators that are essential requirements are installed. Building users can be safe.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an elevator apparatus according to the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic configuration diagram showing an embodiment of an elevator apparatus according to the present invention, and FIG. 2 is a flowchart showing a processing procedure of the elevator apparatus.

  As shown in FIG. 1, the elevator apparatus according to this embodiment includes a car 2 and a counterweight 3 that move up and down a hoistway 1 formed in a building, and a rope 4 that is connected to the car 2 and the counterweight 3. A hoisting machine 5 for driving the car 2 and the counterweight 3 around which the intermediate part of the rope 4 is wound, and a car-top box installed on the car 2 for opening and closing the elevator door 7 via the driving part 6 8, an elevator control panel 10 installed in the elevator machine room and connected to the hoisting machine 5 and the car upper box 8 via a signal line 9, and provided on the elevator door 7 to detect foreign matter non-mechanically. And a detection sensor that outputs a foreign object detection signal, for example, a multi-beam door sensor 11. The building is provided with fire detecting means, for example, a fire detector 12, for detecting a fire and outputting a fire detection signal via the signal line 9.

  Further, the elevator control panel 10 is provided with a microcomputer control unit 13. The microcomputer control unit 13 includes an elevator operation basic control unit 13 a that controls the raising and lowering of the car 2, and foreign object detection output from the multi-beam door sensor 10. A door sensor control unit 13b capable of controlling the opening and closing of the elevator door 7 based on the signal is provided. The car position detecting means that can determine whether or not the car 2 is stopped in the door openable / closable area includes, for example, an elevator operation basic control unit 13a. Further, a forced door that detects that a predetermined time has elapsed from the completion of the opening of the elevator door 7 according to the continuous or intermittent output of the foreign object detection signal and invalidates the foreign object detection signal to forcibly close the elevator door 7. An abnormality detection output from a closing means, a door speed adjusting means for switching the door speed of the elevator door 7 to a predetermined low speed when the forced door is closed, a warning means for alerting a passenger when the forced door is closed, and a sensor abnormality detecting means The pausing means for pausing the elevator in response to the signal includes, for example, a door sensor control unit 13b. The door sensor control unit 13b opens the door of the elevator door 7 in response to a fire detection signal output from the fire detector 11. The elevator door 7 is forcibly closed by detecting that a predetermined time has elapsed since completion.

  Furthermore, the car top box 8 forms an announcement unit that provides voice guidance via a speaker (not shown) provided in the car 2.

  Furthermore, the multi-beam door sensor 11 includes a beam irradiating unit 11a for irradiating a beam and a light receiving unit 11b for receiving the beam irradiated from the beam irradiating unit 11a. Sensor abnormality detecting means for detecting an abnormality and outputting an abnormality detection signal.

  Here, a processing procedure of the elevator apparatus according to the present embodiment will be described with reference to FIG.

  The microcomputer control unit 13 determines whether or not the car 2 is stopped in the door opening / closing area in step S1, and if the car 2 is outside the door opening / closing area, the multi-beam door sensor 11 is shown in step S9. Is inactive.

  On the other hand, if it is determined in step S1 that the car 2 is stopped in the door openable / closable area, it is determined in step S2 whether the multi-beam door sensor 11 detects its own abnormality and outputs an abnormality detection signal. If it is determined that the abnormality detection signal is output at this time, the elevator is stopped as shown in step S10. On the other hand, when the abnormality detection signal is not output in step S2 and the multi-beam sensor 11 is normal, the operation state is determined based on the foreign object detection signal output from the multi-beam door sensor 11 as step S3. If it is determined that the multi-beam sensor 11 has detected a foreign object, it is determined in step S4 whether a fire control operation is being performed based on the fire detection signal output from the fire detector 12, and it is determined that the fire control operation is not being performed. When the determination is made, counting of the continuous or intermittent operation time of the multi-beam door sensor 11 is started. When the foreign object detection time of the multi-beam door sensor 11 does not reach a predetermined time, for example, 60 seconds, the elevator door 7 is kept open as shown in step S11.

  On the other hand, when it is determined in step S6 that the foreign object detection time of the multi-beam door sensor 11 has reached the predetermined time, the foreign object detection signal is invalidated as shown in step S8, and the elevator door 7 is forced to be forced to open in step S12. In addition to closing, the door speed of the elevator door 7 is switched to a predetermined low speed, and voice guidance is given to the effect that the door is forcibly closed by a speaker (not shown) via the car upper box 8.

  If it is determined in step S3 that no foreign object detection signal is output from the multi-beam door sensor 11 and no foreign object is detected, the operation state of the door closing button is determined in step S5, and the door closing button is Is operated, the elevator door 7 is closed as shown in step S13.

  Furthermore, if it is determined that the fire control operation is being performed based on the fire detection signal output from the fire detector 11 in step S4, the time from the completion of the opening of the elevator door 7 is counted in step S7 in advance. It is determined whether or not a predetermined time set, for example, 20 seconds set shorter than the continuous or intermittent operation time of the multi-beam door sensor 11 determined in the above-described step S6 has elapsed. When it is determined that 20 seconds have elapsed since the door opening of the elevator door 7 is completed, the foreign object detection signal is invalidated as shown in step S8, the elevator door 7 is forcibly closed in step S12, and the elevator door is also closed. 7 is switched to a predetermined low speed, and voice guidance is given to the effect that the door is forcibly closed by a speaker (not shown) via the car box 8. In addition, as long as it does not reach predetermined time by above-mentioned step S7, as shown to procedure S11, the door open state of the elevator door 7 is continued.

  According to the present embodiment, when the continuous or intermittent foreign object detection time of the multi-beam door sensor 11 reaches a predetermined time, the elevator door 7 is forcibly closed to prevent service stop due to continued opening due to malfunction or the like. On the other hand, at the time of forced door closing operation, the door speed of the elevator door 7 is lowered and alerting is performed to prevent the passengers from getting in and out of the door. Further, by calling attention through voice through a speaker, passengers can grasp that the elevator door 7 is closed and can prevent door-to-door contact. Furthermore, during a fire control operation, the elevator door is forcibly closed when a predetermined time has elapsed from the completion of the opening of the elevator door 7, thereby ensuring a time for passengers in the car 2 to evacuate to the outside. Generation | occurrence | production of smoke can enter into the hoistway 1, and the situation where the hoistway 1 becomes a chimney and expands a fire spread can be prevented. Furthermore, by stopping the elevator in response to the abnormality detection of the multi-beam door sensor 11, it is possible to prevent any accident from occurring due to the abnormality of the multi-beam sensor 11 in advance. Since it is possible to ensure the necessary safety related to the elevator entrance / exit by installing a detection sensor that detects foreign matter non-mechanically in this way, mechanical detection is performed for reasons of design in a full-glazed elevator etc. In addition to responding to the customer's desire to omit the safety shoes to be performed, it is possible to ensure the safety of the user of the elevator and the user of the building where the elevator is installed, which are essential requirements.

  In the present embodiment, the multi-beam door sensor 11 is described as an example of a detection sensor that is provided on the elevator door 7 and detects a foreign matter non-mechanically and outputs a foreign matter detection signal. However, the present invention is not limited to this, Any device such as a photoelectric door sensor, an ultrasonic door sensor, a thermal door sensor, or the like that detects a person or an object may be used. In addition, voice guidance is performed through a speaker as a warning means for alerting passengers when forced doors are closed. However, a buzzer is provided in the car 2, and the forced doors are informed by ringing this buzzer. You may do it. Furthermore, the predetermined time counted when the multi-beam door sensor 11 is continuously or intermittently detected is 60 seconds, and the predetermined time counted after the elevator door 7 is opened during the fire control operation is 20 seconds. It goes without saying that the invention is not limited to this and can be arbitrarily set.

It is a schematic structure figure showing one embodiment of the elevator apparatus of the present invention. It is a flowchart which shows the process sequence of an elevator apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hoistway 2 Passenger car 3 Counterweight 4 Rope 5 Hoisting machine 6 Drive part 7 Elevator door 8 Car top box 9 Signal line 10 Elevator control panel 11 Multibeam sensor 12 Fire detector 13 Microcomputer control part 13a Elevator operation basic control part 13b Door sensor control unit

Claims (5)

Car position detection means that can determine whether the car moving up and down the hoistway formed in the building is stopped in the door openable / closable area, and a foreign object detection signal that is provided on the elevator door to detect foreign objects non-mechanically. In an elevator apparatus comprising: a detection sensor that outputs: and a control unit that controls opening and closing of the elevator door based on the foreign object detection signal, and controls raising and lowering of the car.
A forced door that detects that a predetermined time has elapsed from the completion of opening of the elevator door according to the continuous or intermittent output of the foreign object detection signal, and forcibly closes the elevator door by invalidating the foreign object detection signal Characterized in that it comprises closing means, door speed adjusting means for switching the door speed of the elevator door to a predetermined low speed when the forced door is closed, and alert means for alerting a passenger when the forced door is closed, Elevator equipment.   The elevator apparatus according to claim 1, wherein the alerting means includes an announcement unit that performs voice guidance via a speaker.   The elevator apparatus according to claim 1, wherein the alerting means includes a buzzer provided in the car.   The forced door closing means detects the elapse of a predetermined time from the completion of the door opening of the elevator door in response to a fire detection signal output from a fire detection means provided in the building and forces the elevator door. The elevator apparatus according to claim 1, wherein the door is closed.   The elevator apparatus according to claim 1, further comprising: a sensor abnormality detection unit that detects an abnormality of the detection sensor and outputs an abnormality detection signal; and a pause unit that pauses the elevator according to the abnormality detection signal.

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