JP4202007B2 - Elevator door safety device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an elevator door safety device, and more particularly, to an elevator door safety device that is provided at an elevator hall or a car doorway and that is provided with a countermeasure against finger jamming between a three-way frame and a door.
[0002]
[Prior art]
8 and 9 show an example of a conventional elevator door safety device (Japanese Utility Model Laid-Open No. 58-16775). In the elevator apparatus shown in FIG. 8, this safety device is provided between an entrance / exit frame 3 that forms the entrance / exit 2 of the elevator car 1 and a door 4 that opens / closes the entrance / exit 2 of the car 1 from the outside. This portion is a portion surrounded by a circle D in FIG. 8, and is shown in an enlarged manner in FIG. In FIG. 9, a gap E is formed between the entrance / exit frame 3 and the door 4, and a safety device is provided facing the gap E.
[0003]
The safety device includes a stepped pin 6 provided so as to be movable in a direction perpendicular to the moving direction (arrow A) of the door 4 by a fixed frame 5 attached to the entrance / exit frame 3. The responder 7 desired in the gap E is fixed to the tip of the stepped pin 6. The responder 7 is normally elastically held at the position shown in the figure by the spring 8 and the nut 9, but when the passenger's finger or the like is caught in the gap E, the spring 8 is compressed and separated from the door 4. Move in the direction. A switch 10 supported by the fixed frame 5 is arranged on the other end side of the stepped pin 6 to detect the movement of the stepped pin 6 and generate a signal indicating that a finger or the like has been caught in the gap E. To do. This signal is sent to the building management room or the elevator maintenance worker room, and a processing worker is dispatched to perform appropriate processing to rescue the passenger.
[0004]
[Problems to be solved by the invention]
However, in such a conventional system, the passenger has to wait for the arrival of the rescue worker with fingers held between them, which is very painful psychologically. In addition, since the elevator is in a stopped state during this period, other passengers are greatly inconvenienced. Furthermore, it is desirable to avoid dispatching rescue workers from the viewpoint of cost.
[0005]
Accordingly, the object of the present invention is that even if a passenger's hand or finger is caught in the entrance / exit gap, it can be immediately extracted without the assistance of the maintenance worker, and there is no need to wait for the arrival of the maintenance worker. It is to obtain an elevator door safety device that does not require stopping or dispatching maintenance workers.
[0006]
[Means for Solving the Problems]
According to the present invention, means for solving the above-described problems are as follows.
(1) The elevator door safety device is a surface facing the door of the three-way frame of the elevator doorway, and is provided in an area where at least a part of the passenger's body may be inserted between the door and the three-way frame. A movable frame movable between an inoperative position forming a part of the three-way frame and an operational position moved in a direction in which a gap between the door and the door widens, and a surface of the movable frame facing the door A contact sensor that detects that the passenger has directly touched and generates a detection signal indicating that at least a part of the passenger's body has been inserted between the door and the three-way frame; and And a driving device that drives the movable frame from the non-operation position to the operation position in response to the detection signal.
[0007]
(2) The elevator door safety device includes a release button that is provided on the three-way frame and lights in response to the detection signal from the contact sensor, and the driving device is operated by the passenger operating the release button. The movable frame may be driven from the inoperative position to the operating position.
[0008]
(3) Moreover, an elevator door safety device is a surface which faces the door of the three-way frame of an elevator doorway, and is an area | region where at least one part of a passenger's body may be inserted between the said door and the said three-way frame. A movable frame that is movable between an inoperative position that forms part of the three-way frame and an operational position that moves in a direction in which a gap between the door and the door widens, and a surface that faces the door of the movable frame A three-way contact sensor that detects that a passenger has touched directly and generates a detection signal indicating that at least a part of the passenger's body has been inserted between the door and the three-way frame; A release button provided on the frame and lit in response to the detection signal from the contact sensor, and provided on the three-way frame, the movable frame is driven from the non-operating position to the operating position by operating the release button. Drive device.
[0009]
(4) The movable frame may be spring biased to the inoperative position.
[0010]
(5) The driving device may be an electromagnet.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
1 to 6 show an embodiment in which the elevator door safety device of the present invention is applied to an elevator hall. The illustrated elevator includes an elevator entrance 13 surrounded by a landing floor 11 and a three-way frame 12, and the elevator entrance 13 is opened and closed by a door 14 provided with a gap E therebetween.
[0012]
The elevator door safety device of the present invention includes, as a part of the three-way frame 12, a movable frame 16 that is movable with respect to the three-way frame 12 on a part of the facing surface 15 that faces the door 14 of the three-way frame 12. As shown in FIG. 2, the movable frame 16 includes a part of the passenger's body such as a finger inserted between the door 14 and the three-way frame 12 in the facing surface 15 of the three-way frame 12. It is provided over the entire area where there is a possibility of occurrence. In the illustrated example, this region ranges from a position of about 500 mm to a position of about 1,800 mm at a height from the landing floor, and the movable frame 16 has a length extending over the entire range of about 1,300 mm. It is a member.
[0013]
As shown in FIGS. 3 and 4, the movable frame 16 is provided in a notch 17 provided in a portion corresponding to the above-described region of the three-way frame 12, and in the inoperative position shown in these drawings. It is substantially flush with the facing surface 15 of the three-way frame 12 and is exposed from the notch 17 toward the gap E, forming a part of the three-way frame 12.
[0014]
A bracket 18 is provided inside the three-way frame 12, a guide pin 19 is provided between the bracket 18 and the facing surface 15 of the three-way frame 12, and the movable frame 16 is provided in the guide pin 19 with a guide hole. 20 is slidable between the inoperative position shown in FIGS. 3 and 5 and the activated position shown in FIGS. 4 and 6. The inoperative position is a position where the movable frame 16 is close to the door 14 via the gap E and forms a part of the three-way frame 12. The activated position is the position where the movable frame 16 is separated from the door 14. The position where the gap E has moved in the direction in which it widens. A compression spring 21 is provided between the movable frame 16 and the bracket 18, and the movable frame 16 is always biased to the inoperative position of FIG. 3 with a predetermined force and forms a part of the three-way frame 12. Therefore, in a normal use situation, foreign objects such as passenger fingers can be prevented from entering the gap E, and the aesthetic appearance of the three-way frame 12 of the elevator is not impaired.
[0015]
Between the bracket 18 of the three-way frame 12 and the movable frame 16, a large number of electromagnets 22 that are driving devices for attracting and driving the movable frame 16 are provided. The electromagnet 22 is obtained by winding a coil 24 around an iron core 23. A large number of contact sensors 25 are provided on the surface of the movable frame 16 facing the gap E, and the presence of a finger F or the like that has entered the gap E is detected so that the passenger can directly contact the sensor 25 (movable frame 16). Is detected, and a detection signal indicating that a part of the passenger's body has been inserted into the gap E between the door 14 and the three-way frame 12 is generated. As the contact sensor 25, a sensor that detects a change in pressure, static electricity, or heat can be used. Each contact sensor 25 is connected to an elevator control device (not shown) via a wiring 26 and a relay terminal 27, and each electromagnet 22 is also connected to a control device (not shown) via a wiring 26 and a relay terminal 27. The movable frame 16 is driven from the non-operating position (FIGS. 3 and 5) to the operating position (FIGS. 4 and 6) in response to a detection signal from the contact sensor 25.
[0016]
When a finger F or the like entering the gap E directly touches the contact sensor 25 (movable frame 16), the contact sensor 25 supplies a detection signal to the control device via the relay terminal 27, and the electromagnet 22 is energized to move the movable frame. 16 is sucked against the pressing force of the spring 21 and driven to the operating position shown in FIGS. 4 and 6 to widen the gap E. When the finger F and the like are extracted, the supply of the detection signal to the control device is stopped, so that the biasing of the electromagnet 22 is also stopped, and the movable frame 16 is not shown in FIGS. 3 and 5 by the pressing force of the spring 21. Return to the operating position. If necessary, the operation of the elevator can be temporarily stopped by a detection signal, and it can be set to return after performing a safety check.
[0017]
Thus, according to the elevator door safety device of the present invention, the fingers F and the like sandwiched in the gap E can be easily and immediately extracted, and the passenger waits for the rescue worker to arrive with the fingers and the like sandwiched. There is no need. Further, since the elevator hardly needs to be stopped, it does not affect the operation efficiency and the convenience of other passengers. Furthermore, there is no need to dispatch rescue workers.
[0018]
Embodiment 2. FIG.
Next, a second embodiment will be described. In the present embodiment, as shown in FIG. 7, a release button 28 that is turned on in response to a detection signal from the contact sensor 25 is provided in the three-way frame, and the movable frame 16 is moved from the inoperative position to the activated position by operating the release button 28. It is embodiment driven to.
[0019]
A movable frame 16 is provided in a notch 17 provided in a range from a position of about 500 mm to a position of about 1,800 mm in height from the landing floor of the three-way frame 12, and between the movable frame 16 and the bracket 18. It is biased to the inoperative position of FIG. 3 by the force of the provided compression spring 21 to form a part of the three-way frame 12 as in the first embodiment.
[0020]
In the present embodiment, as shown in FIG. 7, a release button 28 that is turned on in response to a detection signal from the contact sensor 25 is provided at a position where the person or other passengers can easily reach with a three-way frame sandwiched between them. Yes. The release button 28 is connected to an elevator control device (not shown) via the relay terminal 27, and the movable frame 16 is operated from the inoperative position (FIGS. 3 and 5) only by operating the release button 28. Driven to a position (FIGS. 4 and 6). Other configurations such as the movable frame 16 and the electromagnet 22 as a driving device are the same as those in the first embodiment.
[0021]
When the finger F or the like that has entered the gap E directly touches the contact sensor 25 (movable frame 16) and the contact sensor 25 generates a detection signal, the release button 28 is turned on in response to this detection signal, and the finger F or the like enters the gap E. Inform the surroundings that has entered. Next, when the release button 28 is operated, an operation signal is sent to the control device, the electromagnet 22 is energized, and the movable frame 16 is attracted against the pressing force of the spring 21, as shown in FIGS. 4 and 6. Driving to the indicated operating position widens the gap E. When the finger F or the like is extracted and the operation of the release button 28 is stopped, the supply of the operation signal to the control device is stopped, so that the urging of the electromagnet 22 is also stopped, and the movable frame 16 is pressed by the pressing force of the spring 21. It returns to the inoperative position shown in FIG. 3 and FIG.
[0022]
In the present embodiment, by providing the release button 28, the control device is operated by operating the release button 28 without depending on the detection signal of the contact sensor 25, and the movable frame 16 resists the pressing force of the spring 21. And the gap E can be widened by driving to the operating position shown in FIGS. Accordingly, the movable frame 16 can be moved by operating the release button 28 even when the contact sensor 25 is out of order or the finger F or the like sandwiched by the contact sensor 25 cannot be detected. Further, since the release button 28 is lit, it is possible to immediately inform the surrounding passengers that a finger has been pinched and prompt the user to operate the release button 28. Further, the position can be clearly displayed.
[0023]
Embodiment 3 FIG.
Next, a third embodiment will be described. The present embodiment is a combination of the first embodiment and the second embodiment.
[0024]
A movable frame 16 is provided in a notch 17 provided in a range from a position of about 500 mm to a position of about 1,800 mm in height from the landing floor of the three-way frame 12, and between the movable frame 16 and the bracket 18. It is biased to the inoperative position of FIG. 3 by the force of the provided compression spring 21 to form a part of the three-way frame 12 as in the first embodiment.
[0025]
In the present embodiment, as shown in FIG. 7, a release button 28 that is turned on in response to a detection signal from the contact sensor 25 is provided in the three-way frame. The release button 28 is connected to an elevator control device (not shown) via the relay terminal 27 and is movable when at least one of a detection signal from the contact sensor 25 or an operation signal of the release button 28 is transmitted to the elevator control device. The frame 16 is driven from the non-operating position (FIGS. 3 and 5) to the operating position (FIGS. 4 and 6).
[0026]
As in the first embodiment, when a finger F or the like entering the gap E directly touches the contact sensor 25 (movable frame 16) and the contact sensor 25 generates a detection signal, the detection signal is controlled via the relay terminal 27. At the same time, the release button 28 is turned on according to the detection signal of the contact sensor 25. When the contact sensor 25 supplies a detection signal to the control device via the relay terminal 27, the electromagnet 22 is energized to attract the movable frame 16 against the pressing force of the spring 21, and the operation shown in FIGS. Driving to the position widens the gap E. When the finger F and the like are extracted, the supply of the detection signal to the control device is stopped, so that the biasing of the electromagnet 22 is also stopped, and the movable frame 16 is not shown in FIGS. 3 and 5 by the pressing force of the spring 21. Return to the operating position. Further, by operating the release button 28, an operation signal is also sent to the control device, the electromagnet 22 is energized, and the movable frame 16 is attracted against the pressing force of the spring 21, and FIG. 4 and FIG. Driving to the indicated operating position widens the gap E. When the finger F or the like is extracted and the operation of the release button 28 is stopped, the supply of the operation signal to the control device is stopped, so that the urging of the electromagnet 22 is also stopped, and the movable frame 16 is pressed by the pressing force of the spring 21. It returns to the inoperative position shown in FIG. 3 and FIG.
[0027]
In the present embodiment, the fingers F and the like sandwiched in the gap E can be easily and immediately extracted, and the passenger does not have to wait for the rescue worker to arrive while the fingers or the like are sandwiched. Further, by providing the release button 28, the control device is operated by operating the release button 28 without depending on the detection signal of the contact sensor 25, and the movable frame 16 is sucked against the pressing force of the spring 21. The gap E can be widened by driving to the operating position shown in FIGS. Therefore, in the unlikely event that the movable frame is not automatically driven, the gap can be widened by operating the release button manually to the operating position.
[0028]
【The invention's effect】
As described above, the effects of the elevator door safety device of the present invention are as follows.
(1) The elevator door safety device is a surface facing the door of the three-way frame of the elevator doorway, and is provided in an area where at least a part of the passenger's body may be inserted between the door and the three-way frame. A movable frame movable between an inoperative position forming a part of the three-way frame and an operational position moved in a direction in which a gap between the door and the door widens, and a surface of the movable frame facing the door A contact sensor that detects that the passenger has directly touched and generates a detection signal indicating that at least a part of the passenger's body has been inserted between the door and the three-way frame; and And a driving device that drives the movable frame from the non-operation position to the operation position in response to the detection signal. Therefore, even if a passenger's hand or finger is caught in the entrance / exit gap, it can be immediately removed without the assistance of maintenance workers, so there is no need to wait for the arrival of maintenance workers, and there is no need to wait for the arrival of maintenance workers. There is no need to dispatch.
[0029]
(2) Further, the elevator door safety device is provided on the three-way frame, and a release button that is lit in response to the detection signal from the contact sensor is also used by the driving device when the passenger operates the release button. Since the movable frame is driven from the non-operating position to the operating position, even if a passenger's hand or finger is caught in the entrance / exit gap, it can be immediately extracted without the assistance of maintenance workers. There is no need to wait for the arrival of workers, there is no need to stop the elevator or dispatch maintenance personnel, and if the movable frame is not automatically driven, it can be manually operated by operating the release button. Can be driven to the operating position to widen the gap.
[0030]
(3) Moreover, an elevator door safety device is a surface which faces the door of the three-way frame of an elevator doorway, and is an area | region where at least one part of a passenger's body may be inserted between the said door and the said three-way frame. A movable frame that is movable between an inoperative position that forms part of the three-way frame and an operational position that moves in a direction in which a gap between the door and the door widens, and a surface that faces the door of the movable frame A three-way contact sensor that detects that a passenger has touched directly and generates a detection signal indicating that at least a part of the passenger's body has been inserted between the door and the three-way frame; A release button provided on the frame and lit in response to the detection signal from the contact sensor, and provided on the three-way frame, the movable frame is driven from the non-operating position to the operating position by operating the release button. Drive device. Therefore, even if a passenger's hand or finger is caught in the entrance / exit gap, it can be immediately removed without the assistance of maintenance workers, so there is no need to wait for the arrival of maintenance workers, and there is no need to wait for the arrival of maintenance workers. There is no need to dispatch. In addition, the movable frame can be moved by operating the release button even when the contact sensor is broken or the contact sensor cannot be detected.
[0031]
(4) Since the movable frame is spring biased to the inoperative position, the operation is reliable and the reliability is high.
[0032]
(5) Further, since the drive device is an electromagnet, the device is compact and the operation reliability is high.
[Brief description of the drawings]
FIG. 1 is a schematic view of an elevator hall to which an elevator door safety device of the present invention is applied.
FIG. 2 is a schematic view taken along arrow A in FIG. 1;
FIG. 3 is a schematic enlarged view showing the movable frame of FIG. 2 in an inoperative state.
4 is a schematic enlarged view showing the movable frame of FIG. 2 in an operating position.
5 is a view corresponding to a cross section taken along the line BB in FIG.
6 is a diagram showing a state in which the movable frame is activated in a cross-sectional view corresponding to the line BB in FIG.
FIG. 7 is a schematic view similar to FIG. 2, showing another embodiment of the elevator door safety device of the present invention.
FIG. 8 is a plan sectional view of a conventional elevator car.
9 is an enlarged view of a portion D in FIG.
[Explanation of symbols]
12 three-way frame, 13 doorway, 14 door, 15 three-way frame door facing surface, 16 movable frame, 21 compression spring, 22 electromagnet (drive device), 25 contact sensor, 28 release button, E gap, F finger.

Claims (5)

On the surface facing the door of the three-way frame of the elevator doorway, at least a part of the passenger's body is provided in a region where it may be inserted between the door and the three-way frame, forming a part of the three-way frame A movable frame movable between an inoperative position and an operating position moved in a direction in which a gap between the door and the door expands;
Detection that is provided on the surface of the movable frame facing the door, detects that a passenger has touched directly, and indicates that at least a part of the passenger's body has been inserted between the door and the three-way frame A contact sensor that generates a signal;
An elevator door safety device comprising: a driving device provided on the three-way frame and driving the movable frame from the inoperative position to the operating position in response to the detection signal from the contact sensor. Provided in the three-way frame, provided with a release button that lights in response to the detection signal from the contact sensor,
The elevator door safety device according to claim 1, wherein the driving device drives the movable frame from the non-operating position to the operating position also by the operation of the release button by the passenger. On the surface facing the door of the three-way frame of the elevator doorway, at least a part of the passenger's body is provided in a region where it may be inserted between the door and the three-way frame, forming a part of the three-way frame A movable frame movable between an inoperative position and an operating position moved in a direction in which a gap between the door and the door expands;
Detection that is provided on the surface of the movable frame facing the door, detects that a passenger has touched directly, and indicates that at least a part of the passenger's body has been inserted between the door and the three-way frame A contact sensor that generates a signal;
A release button that is provided in the three-way frame and lights in response to the detection signal from the contact sensor;
An elevator door safety device, comprising: a driving device provided on the three-way frame and driving the movable frame from the inoperative position to the operating position by operating the release button. The elevator door safety device according to any one of claims 1 to 3, wherein the movable frame is spring biased to the inoperative position. The elevator door safety device according to any one of claims 1 to 4, wherein the driving device is an electromagnet.

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