KR101153051B1 - Safety apparatus for elevator door - Google Patents

Abstract

The present invention relates to an elevator door safety device capable of preventing a safety accident by detecting a state in which a soft object is caught in the door of the elevator. The present invention provides a sensor for detecting an object caught between a car door that opens and closes a car on which a passenger boards, and when the sensor detects an object while the car door is closed, the position of the car is determined. And a controller for controlling the car door. According to the present invention, if an object is caught in the door of the elevator, the position of the elevator is determined to have an advantage of preventing the safety accident by opening the door when the elevator is in the correct position.

Elevator, Door, Soft Object, Sensor

Description

Elevator Door Safety Device {SAFETY APPARATUS FOR ELEVATOR DOOR}

The present invention relates to an elevator door safety device capable of preventing a safety accident by detecting a state in which a soft object is caught in the door of the elevator.

In general, the elevator (ELEVATOR) is a vertical transportation means is installed in the hoistway inside the building is a car that can be moved by passengers, and the passengers who ride in the car by the hoist that drives the car is configured to move up and down to the target floor.

And, the elevator door is composed of a landing door installed in the landing of each floor and the car door is installed in the car to drive the car door by the door drive device installed on the top of the car and if the position of the car door and the landing door coincides The landing door interlocked with the drive is configured to open and close.

As shown in FIG. 1, a door provided in a conventional elevator is located at one end of a car door 1 and a car door 1 installed on a car side among doors for passengers to enter and exit the door, thereby closing the door. The sensing switch 4 is operated by the safety tissue 3 to prevent the passenger from being caught between the car doors 1, and the sensing switch 4 reverses the closing operation of the car door 1. Open. This type of door closing safety device is called a contact method. Currently, most elevators use a door closing safety device.

As such, the safety tissue 3 for preventing an object from being caught between the car door 1 in the conventional door closing safety device is horizontal to the inner wall of the car door 1, and the car door ( It protrudes about 50 mm from the end of the closing direction of 1) and is connected to the link 5 so as to be horizontal to the inner wall of the car door 1. And it is made to return by the spring 6 provided in the edge part of the link 5, protruding in about 50 mm from the edge part of the car door 1 in the closing direction. At this time, the tension of the spring 6 is about 10 to 15 N (Newton).

Switch 7 which proves that the door is closed by installing a nonvision at the end of the front door of the car door 1 in which the safety tissue 3 is installed to detect the jamming of the object at the end of the door closing operation. It is easy to detect the jamming of objects until

However, in the conventional door closing safety device, in the closing process of the car door 1, a soft object such as a string or a hem having a tension lower than the tension of the spring supporting the safety tissue 3, the landing door and the car Even in the case of being sandwiched between the doors 1, the safety tissues 3 keep the car door 1 closed while pushing the soft object, and the elevator doors are driven, and the landing door and the car door 1 are driven by the elevator. When the soft object is pulled apart from the top and bottom, thereby causing a high tension in the soft object and the safety tissue 3 is returned, there is a problem that a safety accident occurs because the elevator continues to run without stopping.

The present invention has been made to solve this problem, an object of the present invention is to determine the location of the elevator when the object is caught in the door of the elevator to open the door when the elevator is in the right position to prevent the safety accident To provide a door safety device.

Another object of the present invention to provide an elevator door safety device having a sensor of the structure that can accurately detect the soft objects stuck to the elevator.

Another object of the present invention to provide an elevator door safety device that can accurately detect the soft object by adjusting the position of the sensor for detecting the soft object.

Another object of the present invention is to prevent the safety accident by opening the door when the elevator is in the correct position when the object is caught in the door of the elevator, and opening the door after moving the elevator to the correct position if the elevator is not in the correct position. To provide an elevator door safety device that can be.

Still another object of the present invention is to provide an elevator door safety device that can induce a passenger to remove an object caught by repeatedly opening a door for a short time when an object is detected in the elevator.

Still another object of the present invention is to provide an elevator door safety device having a sensor on one side of the elevator to accurately determine the position of the elevator.

In order to achieve the above object, the present invention provides a detection sensor for detecting an object caught between the car door for opening and closing the passenger car, and when the detection sensor detects the object in the closed state of the car door, A controller for controlling the car and the car door by determining the position of the car.

In addition, the sensing sensor may be elastically supported at one end by the bracket installed in the card, the guide tube formed on the bracket, the elastic member accommodated in the guide tube, and the elastic member accommodated in the guide tube. And a transfer switch for transmitting an operation signal to the controller according to an operation state of the detection member.

The detection sensor is characterized in that it further comprises a position adjusting unit for adjusting the position of the detection sensor.

The controller may include a control unit, a detection signal recognition unit connected to the control unit to recognize a detection signal of the detection sensor, and a stop signal generation unit generating a stop signal for stopping the car according to whether the detection signal recognition unit is recognized. Position determination unit for comparing and determining the height of the car and the landing door according to the stop of the car, and if the position of the car is not the correct position according to the determination of the position determination unit, the movement signal to move the car to the correct position And a door signal generator for generating a signal for opening the car door and the landing door when the position of the car is determined according to the determination of the position determining unit.

Furthermore, when the detection signal recognition unit recognizes the detection signal of the detection sensor, and the stop signal generation unit stops the car, the control unit repeats the opening and closing of the car door and the landing door at a set interval for a predetermined time. If the detection signal of the detection sensor is not recognized by the detection signal recognition unit after opening and closing the car door and landing door, it is characterized in that the control to drive the car.

In addition, the position determining unit is characterized in that the door sensor is provided on one side of the car door, and the sensing member is installed on one side of the landing door to detect the door sensor.

According to the present invention, if an object is caught in the door of the elevator, the position of the elevator is determined to have an advantage of preventing the safety accident by opening the door when the elevator is in the correct position.

In addition, the present invention has the advantage that it is possible to accurately detect the soft object sandwiched in the elevator with a sensor.

In addition, the present invention has the advantage that can accurately detect the soft object by adjusting the position of the sensor for detecting the soft object using the position adjusting unit.

In addition, the present invention, when the object is caught in the door of the elevator, when the elevator is in the right position to open the door, if not in the correct position by moving the elevator to the right position to prevent the safety accident There is an advantage.

In addition, the present invention has the advantage that the door can be repeatedly opened for a short time when the object is detected in the elevator to induce the removal of the object jammed by the passenger.

Moreover, the present invention has the advantage that it is possible to accurately determine the position of the elevator having a sensor on one side of the elevator.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

As shown in Figures 2 and 3, an embodiment of the present invention is a sensor 10 for detecting an object caught between the car door (1) for opening and closing the car (a) on which the passenger, and When the detection sensor 10 detects an object while the car door 1 is closed, the controller 30 which controls the car a and the car door 1 by determining the position of the car a is determined. It is configured to include.

Here, the elevator is a safety tissue that is installed on one end of the car (a), the car door (1) for opening and closing the car (a) when the passenger gets on and off, and one end of the car door (1) (3) and a sensing switch 4 for opening the car door 1 and the landing door 2 according to the detection of the safety tissue 3.

In addition, the car door 1 is configured to operate together with the landing door 2 installed in each floor, so that the landing door 2 is also opened or closed together when the car door 1 is opened or closed.

At this time, the sensor 10 of the present invention is preferably installed on the upper and lower portions of the car door (1), respectively. This is to allow the detection of the object caught in the car door 1 when the car (a) moves.

Therefore, when a hard object is caught in the car door 1 and the landing door 2, it is easily detected by the safety tissue 3. In addition, the soft object not detected by the safety tissue 3 may be detected by the sensor 10.

Therefore, the car door 1 to which the present invention is applied can sense both rigid objects and soft objects, and objects caught in the car door 1 can be easily processed.

And, as shown in Figure 4, the sensor 10 is a bracket 11 is installed on the car door 1, the guide tube 13 formed on the bracket 11 and the guide tube The elastic member 15 accommodated in the (13), the sensing member 17, one end of which is elastically supported in the elastic member 15 in the state accommodated in the guide tube 13 and the operation of the sensing member 17 It may be configured to include a transfer switch 19 for transmitting the operation signal according to the state to the controller (30).

Here, if the object stuck to the car door (1) is a soft strap, vinyl, cloth and hem, etc., the thickness is thin and soft and cannot be detected by the safety tissue (3). That is, while the safety tissue 3 is positioned in the home position by the link 5 at the last moment when the car door 1 is closed, the car door 1 is closed. Then, even if the soft object is caught in the car door 1, the car door 1 and the landing door 2 are closed in a state in which the safety tissue 3 does not detect the soft object due to the characteristics of the soft object.

The car a then moves to the desired floor, whereby the car door 1 and the landing door 2 are separated from each other. Then, when the soft object is pulled between the car door 1 and the landing door 2, the sensor 10 is operated.

That is, as the soft object is pulled tightly, the sensing member 17 supported by the elastic member 15 is pushed backward, and the rear end of the sensing member 17 is provided at the front of the bracket 19. ). Then, the transfer switch 19 transmits the switching operation of the sensing member 17 to the controller 30.

The sensor 10 is preferably configured to further include a position adjusting unit 50 for adjusting the position of the sensor 10.

Here, the position adjusting unit 50 is a long hole 51 formed in the bracket 11, a fastening member 53 fastened to the long hole 51, and a scale 55 formed in the long hole 51 It is composed. At this time, the fastening member 53 may be implemented as a bolt screwed to the car (a).

Therefore, before fully tightening in the process of fastening the fastening member 53 in the state in which the bracket 11 is located in the car (a), by moving the bracket 11 relative to the scale 55, the detection sensor 10 After adjusting the position of the fastening member 53 is completely fastened. Then, the sensor 10 may be fixed in a state where the position is adjusted.

5, the controller 30 is connected to the control unit 32 and the control unit 32 to detect the detection signal of the detection sensor 10 and the detection signal recognition unit 31. And a stop signal generator 33 for generating a stop signal for stopping the car a in response to the detection of the detection signal recognition unit 31, and the car a and the boarding point in accordance with the stop of the car a. If the position of the car (a) is not in the correct position according to the position determination unit (35) for comparing and determining the height of the door (2), the car (a) is fixed The car door 1 and the landing door 2 are opened when the position of the car a is in the correct position according to the determination of the movement signal generating unit 37 and the position determining unit 35 for moving to the position. It may be configured to include a door signal generator 39 for generating a signal to make.

First, the detection signal recognition unit 31, the stop signal generator 33, the position determination unit 35, the movement signal generator 37 and the door signal generator 39 are controlled by the controller 32.

Here, when the detection signal of the sensing member 17 is transmitted by the transfer switch 19 of the detection sensor 10, the detection signal recognition unit 31 of the controller 30 recognizes this, the detection signal recognition unit 31 If it is recognized, the stop signal generator 33 generates a stop signal to stop the car a being moved by the car driver 100. Subsequently, the position determining unit 35 determines the position of the car a by determining the position of the car a, and if the determined position of the car a is not the correct position, the movement signal generator 37 ) Generates a movement signal so that the car a moves to the correct position. Then, the car driving unit 100 moves the car a to the correct position. When the car a is moved to the correct position, the door signal generator 39 generates a door signal. When the door signal is generated, the car door 1 is opened by the car door driving unit 200, the car door 1 is opened, and the landing door 2 is also opened.

Therefore, when the car door 1 and the landing door 2 are opened, the soft object can be processed, so that the occurrence of a safety accident can be prevented by the soft object caught in the car door 1 and the landing door 2. .

In addition, when the detection signal recognition unit 31 recognizes the detection signal of the detection sensor 10, the stop signal generation unit 33 stops the car (a), the control unit 32 is the car door ( 1) and repeats the opening and closing of the landing door (2) for a set time at a predetermined interval, and after the opening and closing of the car door (1) and landing door (2), the detection signal recognition unit 31 in the detection sensor If the detection signal of (10) is not recognized, it is preferable to control to drive the car (a).

Here, the controller 32 may store the set interval and the set time in the provided memory (not shown). At this time, the set interval is preferably set to about 10% of the open length of the car door 1 and the landing door (2).

That is, if the length to be opened is 1m, the set length is preferably 10cm. Therefore, when the car door 1 and the landing door 2 are opened about 10 cm, the soft objects can be easily taken out, so that passengers can recover their soft objects caught in the car door 1 and the landing door 2. have.

In addition, the set time is preferably 1 second to 5 seconds. That is, when the car door 1 and the landing door 2 are opened for several seconds, the passenger can recover his soft object therebetween.

In this way, when the car (a) is stopped and the car door (1) and the landing door (2) are opened for a few seconds before the car (a) is stopped while the soft object is stuck, the car (a) is intended to move. Since it can be moved to a position to remove the foreign matter in a short time, thereby the car (a) can be operated normally.

In addition, if the soft object is not removed even if the car door 1 and the landing door 2 are opened for several seconds, the car a is moved to the position before departure and the car door 1 and the landing door 2 are opened. In addition, it is possible to completely remove the flexible object without causing a safety accident.

6, the position determining unit 35 includes a door sensor 35a provided at one side of the car door 1 and the landing door 2 so that the door sensor 35a is detected. It may be composed of a sensing member (35b) installed on one side of.

Here, the door sensor 35a may be implemented as a magnetic, and the sensing member 35b may be implemented as steel. In this case, the door sensor 35a may be installed at an upper side or a lower side at one side of the car door 1, and the sensing member 35b may also be spaced apart from the lower or upper portion of the landing door 2 by a predetermined distance. .

In addition, the separation distance between the sensing member 35b and the landing door 2 may be set to about 10 ~ 20cm. At this time, the separation distance is preferably set to a distance such that the object or the like does not fall between the car door 1 and the landing door 2 even when the car door 1 and the landing door 2 are opened in the spaced apart state, respectively. Do.

Therefore, when the car (a) is stopped while moving by the detection of the soft object, when the door sensor 35a detects the sensing member (35b) is determined to be in the correct position, the car door (1) and the landing door (2) ) Is opened immediately.

In addition, when the length of the sensing member 35b is formed longer, the sensing area of the door sensor 35a is increased. Therefore, since the sensing area of the door sensor 35a can be increased by that, the user can selectively set the sensing area according to the type of elevator.

On the other hand, the door sensor 35a may be implemented as a light emitting sensor for emitting light, and the sensing member 35b may be implemented as a light receiving sensor for receiving light.

As described above, the present invention can detect a soft object sandwiched between the car door 1 and the landing door 2 of the elevator to prevent a safety accident in advance, so that it can be widely applied to various types of elevators. It can be called an invention.

In the above, the Example of this invention was described. It will be understood by those skilled in the art that the technical configuration of the present invention can be implemented in other specific forms without changing the technical spirit or essential features.

Therefore, the embodiments described above are to be understood in all respects as illustrative and not restrictive, the scope of the invention being indicated by the following claims rather than the foregoing description, and the meaning and scope of the claims and All changes or modifications derived from the equivalent concept should be interpreted as being included in the scope of the present invention.

1 is a view showing a safety device of a conventional elevator door.

Figure 2 is a front view of the elevator to which one embodiment of the present invention is applied.

3 is a side view of FIG. 2;

4 is a partially enlarged view showing the main part of the present invention.

5 is a schematic block diagram of a controller of the present invention.

6 is a partially enlarged view showing another main portion of the present invention.

Description of the Related Art

a: car 1: car door

2: platform door 3: safety tissue

10 detection sensor 11 support means

13: guide tube 15: elastic member

17: sensing member 19: transfer switch

30: controller 31: detection signal recognition unit

33: stop signal generating unit 35: position determination unit

37: movement signal generator 39: door signal generator

100: car drive unit 200: car door drive unit

Claims (6)

A sensor 10 for detecting an object caught between a car door 1 for opening and closing a car (a) on which a passenger rides, and the sensor 10 when the car door 1 is closed An elevator door safety device comprising: a controller (30) configured to control a car (a) and a car door (1) by determining a position of the car (a) when sensing an object; The sensor 10 is A bracket (11) installed on the car door (1); A guide tube 13 formed on the bracket 11; An elastic member 15 accommodated in the guide tube 13; A sensing member 17 having one end elastically supported by the elastic member 15 in a state accommodated in the guide tube 13; Elevator door safety device characterized in that it comprises a transfer switch (19) for transmitting an operation signal according to the operating state of the sensing member (17) to the controller (30). delete The method of claim 1, The sensor 10 is Elevator door safety device, characterized in that it further comprises a position adjustment unit (50) for adjusting the position of the detection sensor (10). The method of claim 1, The controller 30 Control unit 32; A detection signal recognition unit 31 connected to the control unit 32 to recognize a detection signal of the detection sensor 10; A stop signal generator (33) for generating a stop signal for stopping the car (a) in accordance with the recognition of the detection signal recognition unit (31); Position determination unit 35 for comparing and determining the height of the car (a) and the landing door (2) in accordance with the stop of the car (a); A movement signal generating unit 37 for moving the car a to the home position if the position of the car a is not the correct position according to the determination of the position determining unit 35; If the position of the car (a) in the correct position according to the determination of the position determination unit 35, the door signal generator 39 for generating a signal for opening the car door (1) and the landing door (2) Elevator door safety device comprising a. The method of claim 4, wherein When the detection signal recognition unit 31 recognizes the detection signal of the detection sensor 10, the stop signal generator 33 stops the car (a), The control unit 32 The car door (1) and the landing door (2) is repeatedly opened and closed for a set time at a set interval, If the detection signal of the detection sensor 10 is not recognized by the detection signal recognition unit 31 after the opening and closing of the car door 1 and the landing door 2, the control to drive the car (a) Elevator door safety device, characterized in that. The method of claim 4, wherein The position determining unit 35 A door sensor 35a provided at one side of the car door 1; Elevator door safety device, characterized in that consisting of a sensing member (35b) is installed on one side of the landing door (2) to detect the door sensor (35a).

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