JP2005280900A - Elevator system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator system to work when a car user approaches a car door, hall door, etc. while they are being opened or closed, to sense the situation and to prevent the user from being nipped by the doors etc. or his fingers etc. from being drawn into the gap between the doors. <P>SOLUTION: When an obstacle sensing signal is emitted from either of multiple optical axis sensors 8 and 14 while the car door 5 and hall door 11 are being opened or closed, an elevator control device 17a controls a door control device 18a so as to stop the opening/closing motion of the doors 5 and 11. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an elevator system that ensures safety when a door provided in an elevator is closed.

  In elevator systems installed in buildings, etc., safety devices such as mechanical door safety and photocell door safety are installed on the car doors and hold doors. When the car is about to get caught, the car door and hold door are opened again.

Also, in such an elevator system, an overload detection device is installed on the car door, hold door, etc., and the user's hand is caught in the car door, hold door, etc. When a load greater than the set value is applied to the car door, hold door, etc., it is detected and the door opening / closing of the car door, hold door is reversed.
JP-A-10-265156 (Elevator entrance / exit safety device)

  However, in the conventional safety device and the conventional overload detection device used in such an elevator system, even if a child or the like puts a finger on the door of the car door or the hold door, the door Even if it is drawn into the gap, there is a problem that the load is too small to be detected.

  Therefore, conventionally, as described in Patent Document 1, a projector and a light receiver are provided in the vicinity of the car door, and before the passenger's hand or the like is sandwiched in the gap of the car door, the obstacle detection means comprising the light projector and the light receiver This is detected to prevent fingers and the like from being caught between doors.

  However, according to the conventional apparatus described in Patent Document 1, detection on the car side is possible, but it is not possible to prevent a finger from being pinched on the hall side.

  In view of the above circumstances, the present invention detects when a car user approaches the car door or hold door when the car door or hold door is opened or closed, and detects the user so that the user can use the car. It is an object of the present invention to provide an elevator system that can prevent accidents such as being caught between doors and hold doors or a user's finger being drawn into a door gap.

  Also, when opening or closing the car door or hold door, a child or the like places a finger on the car door or hold door, and when the door open / close load increases even slightly, this is detected and the user opens the door. It is an object of the present invention to provide an elevator system that can prevent an accident in which a child is caught in a door or a finger of a child is drawn into a gap in a door.

  In order to achieve the above object, according to the present invention, in claim 1, the present invention is provided on both the car entrance / exit pillar portion on the car side and the hall three-side frame portion on the hold door side provided on the elevator hall side, and emitted. A multi-optical axis sensor that outputs an obstacle detection signal when the light beam is shielded, and an obstacle from any of the multi-optical axis sensors while the car door provided on the car side or the hold door is being opened and closed And an elevator control device that stops opening / closing of the car door or the hold door when a detection signal is output.

  According to a second aspect of the present invention, at least one of a car door provided on the car side or a hold door provided on the elevator hall side, and detecting an opening / closing load of the car door or the hold door, While opening and closing the load sensor that outputs the detection signal, the car door, and the hold door, the overload detection threshold is lowered, and the value of the load detection signal output from the load sensor is the overload detection An elevator control device is provided that stops opening and closing of the car door and the hold door when a threshold value is exceeded.

  The elevator system according to any one of claims 1 and 2, wherein the elevator controller outputs an alarm sound or an announcement sound when stopping the opening / closing of the car door and the hold door. It is characterized by controlling to do.

  According to the present invention, when a car user approaches the car door, hold door, etc. while the car door, hold door is opened and closed, this is detected and the user detects the car door. It is possible to prevent accidents such as being caught between doors and hold doors, or user fingers being drawn into the door gap.

  Also, while the car door or hold door is being opened or closed, a child or the like applies a finger to the car door or hold door to detect even when the door open / close load increases slightly. , It is possible to prevent an accident in which a user is caught in a door or a child's finger is drawn into a gap in the door.

  FIG. 1 is a schematic configuration diagram showing a first embodiment of an elevator system according to the present invention.

  The elevator system 1a shown in this figure includes a car 3 that can be raised and lowered in a hoistway (shaft) 2 of a building, a car door 5 that opens and closes an entrance 4 formed on the front surface of the car 3, Two car doorway pillars 6 arranged so as to surround the doorway 4 of the car 3 and the users mounted on the car doorway pillars 6 approach the car door 5 and light fluxes. A multi-optical axis sensor 8 that detects when any one of 7 is interrupted and outputs an obstacle detection signal, and a holder 11 that opens and closes the doorway 10 formed in the elevator hall 9 of the building. It is attached to the hall three-way frame 12 arranged so as to surround the doorway 10, and a user or the like on the elevator hall 9 side approaches the hold door 11, and any one of the light beams 13 is blocked. When this is detected, a multi-optical axis sensor 14 that outputs an obstacle detection signal, a call input device 15 that is arranged in the car 3 and outputs call information when operated, and each elevator hall 9 And a call input device 16 that outputs call information when operated.

  Furthermore, as shown in FIG. 2, the elevator system 1a controls the operation of a main motor or the like arranged in the machine room based on the call information from the call input devices 15 and 16, and thereby moves the car 3 During the process of raising and lowering and stopping, the process of opening and closing the car door 5 and the hold door 11, and the opening and closing of the car door 5 and the hold door 11, an obstacle from any of the multi-optical axis sensors 8 and 14 When the detection signal is output, a user's hand or the like may be caught in the car door 5 or the hold door 11, or a gap formed between the car door 5 and the car doorway pillar 6 or the hold door 11. An elevator control device 17a that performs processing for generating a door open / close stop signal and the like, judging that a user's finger or the like may be drawn into a gap formed between the three-way frame 12 and the hall When the door opening instruction signal is output from the elevator control device 17a, the car door 5 and the hold door 11 are opened. When the door closing instruction signal is output from the elevator control device 17a, the car door 5 and the hold door 11 are opened. And a door control device 18a for stopping the opening and closing of the car door 5 and the hold door 11 when a door opening / closing stop signal is output from the elevator control device 17a.

  Then, based on the call information output from the call input devices 15 and 16, the elevator controller 17a stops the car 3 and opens and closes the car door 5 and the hold door 11 while When an obstacle detection signal is output from either one of the optical axis sensors 8 and 14, there is a risk that a user's hand will be caught in the car door 5 or the hold door 11, or the car door 5 and the car doorway pillar 6 A door opening / closing stop signal is generated by determining that there is a possibility that a user's finger or the like may be drawn into the gap formed between the two doors or the gap formed between the holder 11 and the three-way frame 12 of the hall. The control device 18a stops the opening / closing of the car door 5 and the hold door 11.

  As described above, in the first embodiment, when the obstacle detection signal is output from any of the multi-optical axis sensors 8 and 14 while the car door 5 and the hold door 11 are being opened and closed. The elevator control device 17a controls the door control device 18a to stop the opening and closing of the car door 5 and the hold door 11, so that the car door 5 and the hold door 11 are being opened and closed. When the user of the car 3 approaches the car door 5, the hold door 11, etc., this is detected, and the user is caught between the car door 5, the hold door 11, etc., or the user's finger, etc. Can be prevented from being accidentally drawn into the gap of the door.

  FIG. 3 is a schematic configuration diagram showing a second embodiment of the present invention, and FIG. 4 is a block diagram showing a circuit configuration example of the elevator system shown in FIG. In these drawings, the same reference numerals are given to the portions corresponding to those in FIGS. 1 and 2.

  The elevator system 1b shown in this figure is different from the elevator system 1a shown in FIG. 1 in that load sensors 21 and 22 are provided for a motor driving device for driving the car door 5 and a motor driving device for driving the hold door 11, respectively. When the obstacle detection signal is output from any of the multi-optical axis sensors 8 and 14 while the car door 5 and the hold door 11 are being opened and closed, the load sensitivity level is output from the elevator controller 17b. A switching instruction signal is output to lower the overload detection threshold value of the door control device 18b, and a child or the like touches the car door 5, the hold door 11 or the like. When the value of the load detection signal output from the vehicle increases slightly, this is detected and the opening / closing of the car door 5 and the hold door 11 is stopped. It is that it was.

  Thus, in the second embodiment, when an obstacle detection signal is output from any of the multi-optical axis sensors 8 and 14 while the car door 5 and the hold door 11 are being opened and closed, This is detected by the elevator control device 18b, the overload detection threshold value of the door control device 18b is lowered, and even if the value of the load detection signal output from one of the load sensors 21 and 22 is slightly increased. In this case, the opening / closing of the car door 5 and the hold door 11 is stopped. If the door opening / closing load increases slightly even if a finger is placed on the door, etc., this is detected and the user is pinched by the door or the child's finger is drawn into the gap of the door Cormorant accident can be prevented in advance.

  FIG. 5 is a schematic block diagram showing a third embodiment of the elevator system according to the present invention, and FIG. 6 is a block diagram showing a circuit configuration example of the elevator system shown in FIG. In these drawings, the same reference numerals are given to the portions corresponding to those in FIGS. 1 and 2.

  The elevator system 1c shown in this figure is different from the elevator system 1a shown in FIG. 1 in that an alarm device 31 consisting of a buzzer, a bell, etc. is provided in the car 3, and as shown in FIG. When an obstacle detection signal is output from any of the multi-optical axis sensors 8 and 14 while the door 11 is being opened and closed, the elevator control device 18c is connected to the car door 5 or the hold door 11 by the user. The user's finger or the like in the gap formed between the car door 5 and the car doorway pillar 6 or the gap formed between the hold door 11 and the hall three-way frame 12 The alarm device 31 emits an audible alarm to alert the user so that his / her finger is not caught in the car door 5, the hold door 11, etc. Is that the.

  As described above, in the third embodiment, when an obstacle detection signal is output from any of the multi-optical axis sensors 8 and 14 while the car door 5 and the hold door 11 are being opened and closed. The elevator control device 18c may cause a user's hand or the like to be caught in the car door 5 or the hold door 11, or a gap formed between the car door 5 and the car doorway column 6 or the hold door 11 Since it is determined that there is a possibility that a user's finger or the like may be drawn into the gap formed between the three-way frame 12 of the hall and the alarm device 31 emits an alarm sound, the car door 5 and the hall While the door 11 is being opened and closed, a user of the car 3 approaches the car door 5 and the hold door 11 or a child puts a finger on the car door 5 or the hold door 11 etc. Do When the opening / closing load increases even slightly, an alarm is sounded to alert the user and the user may be pinched by the door or children's fingers may be drawn into the door gap Can be prevented.

  FIG. 7 is a schematic configuration diagram showing a fourth embodiment of the elevator system according to the present invention, and FIG. 8 is a block diagram showing a circuit configuration example of the elevator system shown in FIG. In these drawings, the same reference numerals are given to the portions corresponding to those in FIGS. 1 and 2.

  The elevator system 1d shown in this figure is different from the elevator system 1a shown in FIG. 1 in that a speaker 41 is provided in the car 3, and the car door 5 and the hold door 11 are opened and closed as shown in FIG. In the meantime, when an obstacle detection signal is output from one of the multi-optical axis sensors 8 and 14, the elevator control device 17d may cause a user's hand to be caught in the car door 5 or the hold door 11. Or a user's finger or the like may be drawn into a gap formed between the car door 5 and the car doorway pillar 6 or a gap formed between the hold door 11 and the three-way hall frame 12 Make a decision to announce a message from the speaker 41 so as not to be caught by the door, so that the user is not caught by the car door 5, the hold door 11 or the like. It is that you have to encourage.

  As described above, in the fourth embodiment, when an obstacle detection signal is output from one of the multi-optical axis sensors 8 and 14 while the car door 5 and the hold door 11 are being opened and closed. The elevator control device 17d may cause a user's hand or the like to be caught in the car door 5 or the hold door 11, or a gap formed between the car door 5 and the car doorway pillar 6 or the hold door 11 It is determined that there is a risk that a user's finger or the like may be drawn into the gap formed between the three-way frame 12 of the hall, and a message that calls attention from the speaker 41 so as not to be pinched by the door is announced. Therefore, while the car door 5 and the hold door 11 are being opened and closed, the user of the car 3 approaches the car door 5 and the hold door 11, or a child etc. 5. When a finger or the like is placed on the hold door 11 and the door opening / closing load increases even slightly, an announcement is given to give attention to the user, the user is pinched by the door, a child's finger, etc. Can be prevented from being accidentally drawn into the gap of the door.

BRIEF DESCRIPTION OF THE DRAWINGS The schematic block diagram which shows 1st Embodiment of the elevator system by this invention. The block diagram which shows the circuit structural example of the elevator system shown in FIG. The schematic block diagram which shows 2nd Embodiment of the elevator system by this invention. The block diagram which shows the circuit structural example of the elevator system shown in FIG. The schematic block diagram which shows 3rd Embodiment of the elevator system by this invention. The block diagram which shows the circuit structural example of the elevator system shown in FIG. The schematic block diagram which shows 4th Embodiment of the elevator system by this invention. The block diagram which shows the circuit structural example of the elevator system shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a-1d: Elevator system 2: Hoistway 3: Car cage 4: Entrance / exit 5: Car door 6: Car doorway pillar 7: Light beam 8: Multi-optical axis sensor 9: Elevator hall 10: Entrance / exit 11: Hold door 12: Hall Three-way frame 13: Light flux 14: Multi-optical axis sensor 15: Call input device 16: Call input device 17a to 17d: Elevator control device 18a, 18b: Door control device 21, 22: Load sensor 31: Alarm device 41: Speaker

Claims (3)

A multi-optical axis that is provided in both the car entrance / exit pillar part on the car side and the hall three-side frame part on the holder side provided on the elevator hall side, and outputs an obstacle detection signal when the emitted light beam is shielded A sensor,
Stops opening / closing of the car door or the hold door when an obstacle detection signal is output from any of the multi-optical axis sensors while the car door or the hold door provided on the car side is being opened / closed. An elevator control device,
An elevator system characterized by comprising: Provided on at least one of a car door provided on the car side or a hold door provided on the elevator hall side, detects an opening / closing load of the car door or the hold door, and outputs a load detection signal. A load sensor;
While opening and closing the car door and the hold door, the overload detection threshold is lowered, and when the value of the load detection signal output from the load sensor exceeds the overload detection threshold, A car door, an elevator control device for stopping the opening and closing of the hold door,
An elevator system characterized by comprising: The elevator system according to claim 1 or 2,
The elevator control device controls to output an alarm sound or an announcement sound when stopping the opening / closing of the car door and the hold door.

Images