WO2018164336A1

WO2018164336A1 - Safety device for preventing fingers from being jammed in elevator

Info

Publication number: WO2018164336A1
Application number: PCT/KR2017/010027
Authority: WO
Inventors: 윤일식
Original assignee: 윤일식
Priority date: 2017-03-06
Filing date: 2017-09-13
Publication date: 2018-09-13
Also published as: KR101769732B1

Abstract

The present invention relates to a safety device for preventing fingers from being jammed in a space between a door and a door frame by installing optical sensors on cage doors of an elevator. Light emitting sensors and light receiving sensors are installed in a one-to-one corresponding manner on only the cage door-side, thereby eliminating the inefficiency of installing optical sensors on all floors of a building.

Description

Safety device to prevent pinch of elevator

The present invention relates to a safety device for preventing hand pinching of an elevator, and more particularly, to a safety device for preventing hand pinching in a gap between a door and a door frame by installing an optical sensor in a cage door of an elevator.

There is a gap between the hall door (HD) and the door frame (30) for smooth opening and closing of the elevator door, if the passenger waiting at the platform to get on the elevator touch the door surface hall door (HD) There is a common accident that hands are injured by the gap between the door frame 30 and the hall door (HD) in the state of touching the door surface without recognizing that the door is opened. In particular, in children, lack of attention is often caused by such hand-clamping safety accidents.

According to statistical data published by the National Security Agency on February 19, 2016, a total of 319 safety accidents occurred in the last 10 years, resulting in 365 casualties and 91 deaths. In the case of double-handed accidents, there were about 1 serious accidents that require more than 3 weeks of treatment each year. There were 79 minor accidents reported to Korea Consumer Resources in 2013, 103 in 14 years and 92 in 15 years. . In order to prevent such accidents, the domestic lifting technique has strengthened the gap standard between elevator doors and door frames from 10mm to 5mm.

On the other hand, in addition to pinching, foreign matter may be caught in such gaps, in which case the smooth opening and closing operation of the elevator may be hindered.

A conventional apparatus for solving this problem is illustrated in FIG. 1, which has a plurality of light emitting sensors (LES) and a light receiving sensor (LRS) installed side by side in a 1: 1 correspondence in both door frames 30. And, by connecting the wires to these sensors, when the light of the light-emitting sensor and the light-receiving sensor is blocked, it is determined that the hand-caught accident occurred to control the opening and closing of the door.

When the sensor is installed in the door frame as described above, electrical wiring connected to the sensor is required for each floor. 2 is a front view showing such a wiring relationship.

As shown, since each floor has to be connected to sensors, especially in high-rise buildings, the wiring becomes very complicated and the cost increases considerably, and a lot of manpower is required for maintenance of the wiring. there is a problem.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems in the related art, and by installing the sensor on the side of the cage door instead of the door frame of the elevator, it is necessary to install the sensor and related wiring on all floors, reducing the cost and maintenance. It aims at preventing hand pinching accidents, while also being convenient.

To achieve this object, the present invention

A plurality of light emitting sensors (LES) arranged at regular intervals in a row up and down along an inner edge of one cage (CD) of the elevator;

A plurality of light receiving sensors (LRS) disposed at positions corresponding to the plurality of light emitting sensors LES at an inner edge of the other caged CD of an elevator;

A plurality of light emitting side through holes 10 formed in one hall door HD of an elevator at a position corresponding to each of the plurality of light emitting sensors LES, and allowing light emitted from the light emitting sensor to pass therethrough;

A plurality of light receiving side through-holes 12 are formed in the other hall door (HD) of the elevator to a position corresponding to each of the plurality of light receiving sensors (LRS), passing the light emitted from the light emitting sensor toward the light receiving sensor ;

Two reflecting plates disposed in front of each of the light emitting side through hole 10 and the light receiving side through hole 12 and disposed so that light passing through the light emitting side through hole 10 passes through the light receiving side through hole 12. 20);

A door controller (DC) connected to the light emitting sensor (LES) and a light receiving sensor (LRS) to control the opening / closing operation of the elevator door according to whether light is blocked and to control the overall operation of the elevator (EC); And

And a door opening / closing actuator (DA) connected to the door controller (DC) and controlling the opening / closing speed of the elevator door in response to a command of the door controller.

The door opening / closing actuator DA stops or opens or closes the elevator door by a command of the elevator controller EC which detects that the light emitted from the light emitting sensor LES is not transmitted to the light receiving sensor LRS. Provides a safety device for preventing hand pinching of an elevator, characterized by slowing down the speed.

In the present invention, a plurality of door frame through holes 32 are formed in each of the door frames 30 on both sides of the elevator hall door HD, and the light emitted from the light emitting sensor passes through the light emitting side through hole 10 to reflect the plate ( 20) and then pass through one door frame through hole 32 and pass through the other door frame through hole 32 and then to the other reflecting plate 20 and to the light receiving sensor through the light receiving side through hole 12. You can get it in.

In addition, two elongated fireproof boards 50 which are supported by a flammable fixing strap 52 on both rear doors HD and on the back side of the both

doors

10 and 12 of the halldoor HD and act as a fire protection function. Further, the fire plate 50 is formed with a plurality of through holes 54 at positions corresponding to the respective through

holes

10, 12, respectively, so that through holes of the fire plate 50 54 is matched with the through-

holes

10 and 12 of the hall door to pass the light from the light emitting sensor, but if the flammable fixing strap 52 is broken due to a high temperature due to a fire, the fire is caused by the weight of the fire plate 50. More preferably, the plate is lowered to block both through

holes

10 and 12 of the hole door.

The present invention also provides

A plurality of Light Emitting Sensors (LESs) disposed at regular intervals along the outer side of one cage (CD) of the elevator or along the edge of the cage door frame 40 installed inside the hoistway at regular intervals;

A plurality of Light Receiving Sensors (LRSs) disposed at a position corresponding to the plurality of light emitting sensors LES on the outer side of the other cage door CD of the elevator or at the edge of the cage cage frame 40. ;

Two reflecting plates 22 disposed at both side surfaces of the elevator hall door HD to reflect light from the light emitting sensor toward the light receiving sensor;

The door opening / closing actuator DA stops or opens or closes the elevator door by a command of the elevator controller EC which detects that the light emitted from the light emitting sensor LES is not transmitted to the light receiving sensor LRS. It also provides a safety device for preventing hand pinch of the elevator, characterized in that the slowing down.

At this time, the fire protection plate 50 supported by the spring (S) and the flammable support 60 is installed on the side surfaces of both the hall doors (HD), the spring ( By the elastic force of S) it is possible to pivot the fire plate 50 to prevent the gap open to the outside. In this case, the surface of the fire protection board 50 may normally function as the reflection plate 22.

According to the safety device of the present invention configured as described above, the light emitting sensor and the light receiving sensor need to be installed only in the cage door of the elevator, thereby reducing the cost and simplifying the structure of arranging the sensors and the electrical wiring on all floors, and maintaining them. It can also be much simpler than before.

1 is a cross-sectional view of a device for preventing a conventional pinching accident;

2 is a front view showing the wiring relationship of the apparatus of FIG.

3 is a cross-sectional view showing a conventional apparatus and the present invention;

4 is a sectional view showing an example of the present invention;

5 is a block diagram showing a simple connection of the overall configuration of the present invention;

FIG. 6 is an enlarged view of the circled portion of FIG. 4, showing enlarged views of different embodiments 6A to B;

7 is a sectional view showing another example of the present invention;

FIG. 8 is an enlarged view of the circle portion of FIG. 7, in which 8A shows an example in which the reflector is not moved and 8B is installed so that the reflector moves in a fire;

9 is a sectional view showing another example of the present invention;

10 is a view showing a state before and after a fire of a fire board applied to the present invention;

11 shows another example of a fire board;

12 is a view showing an example in which the embodiment of Figure 8B blocked the gap due to fire.

Figure 3 is a cross-sectional view showing a conventional device and the present invention, the left side is a conventional device, broken lines connecting sensors (LES, LRS) to each floor door frame and connecting these sensors to the elevator controller (EC) The electrical wiring shown should be present on all floors and demonstrates the complexity.

3 is a cross-sectional view showing an example of the present invention, showing that the electrical wiring represented by the broken line is also very simple by installing the sensors LES and LRS only in the caged door CD of the elevator.

4 is a cross-sectional view showing an example of the present invention.

As shown, a plurality of Light Emitting Sensors (LES) are arranged at regular intervals in a line up and down along the inner edge of one cage (CD) of the elevator, and the inner edge of the other cage (CD) In addition, a plurality of light receiving sensors (LRS) are arranged in a line corresponding to the plurality of light emitting sensors LES.

In addition, a plurality of light emitting side through-holes 10 are formed in one hall door HD of the elevator to a position corresponding to each of the plurality of light emitting sensors LES, and light emitted from each light emitting sensor is emitted to the plurality of light emitting sides. Pass through each of the through holes (10).

Similarly, a plurality of light receiving side through-holes 12 are formed in the other hall door HD of the elevator to a position corresponding to each of the plurality of light receiving sensors LRS, and the light emitted from the light emitting sensor is received on each light receiving side. Through the through hole 12 is incident to each light receiving sensor.

In order to move the light, two reflecting plates 20 are provided in front of each of the light emitting side through hole 10 and the light receiving side through hole 12, so that the light passing through the light emitting side through hole 10 It is arranged at an angle to pass through the light-receiving side through-hole 12.

5 is a block diagram showing a simple connection of the overall configuration of the present invention.

An elevator controller (EC), which controls the overall operation of the elevator, in particular the opening and closing operation of the door, is connected to a door controller (DC) that controls the operation of the elevator door, and the door controller (DC) is a light emitting sensor (LES) and a light receiving sensor ( LRS) controls the opening and closing operation of the elevator door depending on whether light is blocked. In addition, a door opening / closing actuator DA such as an electric motor for adjusting the opening / closing speed of the elevator door is connected to the door controller EC to control the opening / closing speed of the elevator door by a command of the door controller.

If necessary, the speaker SP may be connected to the door controller DC. In this case, when it is determined that the light moving from the light emitting sensor to the light receiving sensor is blocked and a hand-clamping accident has occurred, a warning sound is generated from the speaker SP by a command of the door controller EC, and a warning is made to the passenger by sound. Can be.

FIG. 6 is an enlarged view of the circled portion of FIG. 4, showing another embodiment of FIGS. 6A to 6B.

6A illustrates a case in which the through-hole is not formed in the door frame 30, and the light from the light emitting sensor passes through the gap between the hole door HD and the door frame 30 and then in the reflecting plate 20. It shows reflection and incident to the light receiving sensor LRS.

6B illustrates a case in which a plurality of door frame through holes 32 are formed in each of the door frames 30 on both sides of the elevator hall door HD, and light from the light emitting sensor passes through the light emitting side through holes 10. Sun reflects to reflector 20 (not shown) and passes through one door frame through hole 32 through another door frame through hole 32 (shown) and to the other reflector 20 (shown) It shows that entering the light receiving sensor through the light receiving side through-hole 12.

7 is a cross-sectional view showing another example of the present invention.

In the present embodiment, a plurality of light emitting sensors LES and light receiving sensors LRS disposed at regular intervals in a line up and down along each outer side of each of the cages CD of the elevator are installed so as to correspond 1: 1. Two reflecting plates 22 are disposed on both side surfaces of the door HD to reflect light from the light emitting sensor toward the light receiving sensor. The other configuration is the same as in the above embodiment.

FIG. 8 is an enlarged view of the circled portion of FIG. 7, showing examples of installation of two reflecting plates, respectively.

FIG. 8A shows an example in which the reflector 22 is immovably fixed, and FIG. 8B is an example in which the reflector 22 is installed to move when a fire occurs, which will be described later.

9 is a cross-sectional view showing another example of the present invention.

In the present embodiment, a plurality of light emitting sensors LES and light receiving sensors are arranged at a predetermined interval in a single row in a 1: 1 correspondence along the edges of the cage door frame 40 installed inside the hoistway of the elevator. This is different from the example. In this case, the reflecting plates 22 are respectively provided in the side surface of the hall door HD at the front positions of both sensors.

On the other hand, in the event of a fire, the elevator door must function as a firewall, for this purpose it must block the above-mentioned various through holes. To this end, in the present invention, a fireproof board is installed.

FIG. 10 is a view showing an example of such a fireproof board 50, and shows a rear surface of the hall door HD. That is, the fireproof board 50 having a fire protection function to be supported by the flammable fixing straps 52 is installed on the rear side of both hole doors HD at positions corresponding to both through

holes

10 and 12 of the hole doors HD. Can be. A plurality of through holes 54 are formed in the fire protection plate 50 at positions corresponding to the respective through

holes

10 and 12, respectively.

10A shows the situation before the fire, and FIG. 10B shows the situation after the fire.

As shown in Fig. 10A, the through-hole 54 of the fire protection board 50 coincides with the through-

holes

10 and 12 of the hall door in the normal state before the fire, and passes the light from the light emitting sensor. When the flammable fixing strap 52 is broken due to the high temperature caused by the fire, the fire plate is lowered by the weight of the fire plate 50 to block both through-

holes

10 and 12 of the hall door, so that the flame caused by the fire passes through the hole. Block doing

Fire plate 50 of Figure 10 is connected to a plurality of rotatable brackets 56, if the fire occurs and the flammable fixing strap 52 is broken, the bracket 56 is rotated in the direction of the arrow, the fire plate is lowered Structure.

On the other hand, as shown in Figure 11, when the fire occurs and the fixing strap 52 is broken, the fire protection plate 50 may be adopted to slide in the direction of the arrow. In this case, it is sufficient to adopt a guide 58 structure to enable sliding on the side of the fire protection board (50).

In the case of the embodiment of FIG. 8B, the fire protection plate 50 supported by the spring S and the flammable support 60 is installed on the side surfaces of both hole doors HD, and the flammable support 60 is heated by the fire due to the high heat. When melted, the fire protection board 50 may be pivoted by the elastic force of the spring S to prevent the gap opened to the outside. In this case, the surface of the fire protection board 50 can also function normally as the reflecting plate 22.

FIG. 12 shows an example in which the embodiment of FIG. 8B blocks a gap due to a fire. As shown, when the support 60 is melted due to the high temperature of the fire, the fire board 50 is pivoted in the direction of the arrow by the elastic force of the spring (S) to block the gap. If necessary, the through-holes formed in the door frame may be blocked. As the spring (S), it is preferable to use a spring of the kind that exerts a force that occurs when the support is melted.

Claims

A plurality of light emitting sensors (LES) arranged at regular intervals in a row up and down along an inner edge of one cage (CD) of the elevator;

A plurality of light receiving sensors (LRS) disposed at positions corresponding to the plurality of light emitting sensors LES at an inner edge of the other caged CD of an elevator;

A plurality of light emitting side through holes 10 formed in one hall door HD of an elevator at a position corresponding to each of the plurality of light emitting sensors LES, and allowing light emitted from the light emitting sensor to pass therethrough;

A plurality of light receiving side through-holes 12 are formed in the other hall door (HD) of the elevator to a position corresponding to each of the plurality of light receiving sensors (LRS), passing the light emitted from the light emitting sensor toward the light receiving sensor ;

Two reflecting plates disposed in front of each of the light emitting side through hole 10 and the light receiving side through hole 12 and disposed so that light passing through the light emitting side through hole 10 passes through the light receiving side through hole 12. 20);

A door controller (DC) connected to the light emitting sensor (LES) and a light receiving sensor (LRS) to control the opening / closing operation of the elevator door according to whether light is blocked and to control the overall operation of the elevator (EC); And

And a door opening / closing actuator (DA) connected to the door controller (DC) and controlling the opening / closing speed of the elevator door in response to a command of the door controller.

The door opening / closing actuator DA stops or opens or closes the elevator door by a command of the elevator controller EC which detects that the light emitted from the light emitting sensor LES is not transmitted to the light receiving sensor LRS. Safety device for preventing hand pinch of the elevator, characterized in that the slowing down.
According to claim 1, A plurality of door frame through holes 32 are formed in each of the door frames 30 on both sides of the elevator hall door HD, and the light from the light emitting sensor passes through the light emitting side through hole 10 to reflect the plate. Reflected by the (20) and then pass through one door frame through hole 32 through the other door frame through hole 32 and then reflected on the other reflecting plate 20 and the light receiving sensor through the light receiving side through hole 12 Safety device for preventing hand pinch of the elevator, characterized in that entering.
According to claim 1 or 2, wherein the position corresponding to both of the through holes (10, 12) of the hall door (HD) is supported by a flammable fixing strap (52) on the back of both hole door (HD) and a fire protection function Two elongated fireproof boards 50 are provided, and the fireproof board 50 has a plurality of through holes 54 formed at positions corresponding to the respective through holes 10 and 12, respectively. When the through hole 54 of the fire protection panel 50 is matched with the through holes 10 and 12 of the hole door to pass the light from the light emitting sensor, but the flammable fixing strap 52 is broken due to the high temperature caused by the fire. Safety device for preventing hand pinching of an elevator, characterized in that the fireproof board is lowered by the weight of the fireproof board 50 to block both through holes 10 and 12 of the hall door.
A plurality of Light Emitting Sensors (LESs) disposed at regular intervals along the outer side of one cage (CD) of the elevator or along the edge of the cage door frame 40 installed inside the hoistway at regular intervals;

A plurality of Light Receiving Sensors (LRSs) disposed at a position corresponding to the plurality of light emitting sensors LES on the outer side of the other cage door CD of the elevator or at the edge of the cage cage frame 40. ;

Two reflecting plates 22 disposed at both side surfaces of the elevator hall door HD to reflect light from the light emitting sensor toward the light receiving sensor;

A door controller (DC) connected to the light emitting sensor (LES) and a light receiving sensor (LRS) to control the opening / closing operation of the elevator door according to whether light is blocked and to control the overall operation of the elevator (EC); And

And a door opening / closing actuator (DA) connected to the door controller (DC) and controlling the opening / closing speed of the elevator door in response to a command of the door controller.

The door opening / closing actuator DA stops or opens or closes the elevator door by a command of the elevator controller EC which detects that the light emitted from the light emitting sensor LES is not transmitted to the light receiving sensor LRS. Safety device for preventing hand pinch of the elevator, characterized in that the slowing down.
The fire protection plate 50 supported by the spring S and the flammable support 60 is provided in the side surface of both said hall doors HD, The said flammable support 60 is carried out by the high heat by a fire. When the melted spring (S) by the elastic force of the fireproof board 50 pivoting safety device for preventing hand pinch of the elevator, characterized in that to prevent the gap opened to the outside.
The safety device for preventing hand pinching of an elevator according to claim 5, wherein the surface of the fire protection board (50) functions as the reflection plate (22).