KR101748313B1 - Door safety open-close apparatus for elevator - Google Patents

Door safety open-close apparatus for elevator Download PDF

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Publication number
KR101748313B1
KR101748313B1 KR1020150172605A KR20150172605A KR101748313B1 KR 101748313 B1 KR101748313 B1 KR 101748313B1 KR 1020150172605 A KR1020150172605 A KR 1020150172605A KR 20150172605 A KR20150172605 A KR 20150172605A KR 101748313 B1 KR101748313 B1 KR 101748313B1
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KR
South Korea
Prior art keywords
door
guide panel
wire
pulley
panel
Prior art date
Application number
KR1020150172605A
Other languages
Korean (ko)
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KR20170066058A (en
Inventor
조성민
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조성민
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Priority to KR1020150172605A priority Critical patent/KR101748313B1/en
Publication of KR20170066058A publication Critical patent/KR20170066058A/en
Application granted granted Critical
Publication of KR101748313B1 publication Critical patent/KR101748313B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/24—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02—Door or gate operation
    • B66B13/06—Door or gate operation of sliding doors
    • B66B13/08—Door or gate operation of sliding doors guided for horizontal movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/24—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
    • B66B13/26—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers between closing doors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00—Suspension arrangements for wings
    • E05D15/06—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
    • E05D15/0621—Details, e.g. suspension or supporting guides
    • E05D15/0626—Details, e.g. suspension or supporting guides for wings suspended at the top
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/632—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings
    • E05F15/643—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings operated by flexible elongated pulling elements, e.g. belts, chains or cables
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/644—Flexible elongated pulling elements
    • E05Y2201/654—Cables
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/658—Members cooperating with flexible elongated pulling elements
    • E05Y2201/668—Pulleys; Wheels
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/104—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for elevators

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Elevator Door Apparatuses (AREA)

Abstract

The present invention relates to a safety door opening / closing device for elevators, and more particularly, to a safety door opening / closing device for an elevator, in which a pair of doors are symmetrically opened and closed together to securely secure the door so that the door is not opened even if the wire is accidentally broken. .
The present invention relates to a refrigerator comprising: a first door and a second door; A first guide panel and a second guide panel respectively coupled to the upper surfaces of the first door and the second door; A first pulley disposed at a position spaced apart from one side of the first guide panel; A second pulley disposed at a position spaced apart from the other side of the second guide panel; A first wire interlocking the first guide panel task 2 guide panel through the first pulley and the second pulley; A restricting member hinged to the first guide panel so as to be able to tilt the distal end portion provided with the restricting portion, ; And an engaging member which is provided on the second guide panel and moves together with the engaging portion having a hook-shaped engaging portion at a front end thereof facing the first guide panel and is constrained by the restricting portion of the restricting member, The first door and the second door are engaged without the first wire interposed therebetween to allow the first door and the second door to be opened even if the first wire is broken .

Description

TECHNICAL FIELD [0001] The present invention relates to a safety door opening / closing device for an elevator,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening and closing apparatus for an elevator, and more particularly, to a door opening and closing apparatus for an elevator which is capable of stably restraining a door from being opened even when a pair of doors are symmetrically opened and closed, To a safety device for an elevator door.

Generally, an elevator is a device for carrying a cargo or a passenger-carried container in a vertical path formed in a building so that the container can be lifted and lowered by a drive mechanism.

The elevator includes an inner door for selectively opening and closing a gate of the container, and an outer door for opening and closing an opening formed in the passage. The inner door and the outer door are simultaneously opened or closed so that the inner door and the outer door are both opened to allow the passenger to get on or off the container. In addition, both the inner door and the outer door are connected to the left and right doors, respectively, so that even if the driving force is transmitted to only one of the doors, the opening and closing operations are performed symmetrically with respect to each other.

However, since the door is opened and closed repeatedly as is known in the case of an elevator, when a certain point is reached, a wire connecting between a pair of doors is cut off and the door is opened, so that people using the elevator are in a very dangerous situation There was a problem.

Korean Published Patent Application No. 2013-0017767 (Feb. 20, 2013)

Accordingly, it is an object of the present invention to provide a door opening / closing apparatus for an elevator, and more particularly, to an elevator door opening / The present invention also provides a door safety device for an elevator that assures the safety of an occupant by stably restraining the door from being opened even if the wire is broken due to an accident.

According to an aspect of the present invention, there is provided an elevator door opening / closing device installed on each floor of a building, the elevator door opening / closing device comprising a first door and a second door, A door; A first guide panel and a second guide panel which are respectively engaged with the upper portions of the first door and the second door and guide the sliding opening and closing of the first and second doors while moving along the upper rail; A first pulley disposed at a position spaced apart from one side of the first guide panel; A second pulley disposed at a position spaced apart from the other side of the second guide panel; The first guide panel is connected to the first guide panel and the other end thereof is connected to the first guide panel, and the second guide panel is connected to the other end of the first guide panel, A first wire for moving the second guide panel in a direction symmetrical to the moving direction of the panel so that the first door and the second door cooperate with each other such that the first door and the second door come together at the center or spread from the center; A restricting member hinged to the first guide panel so as to be able to tilt the distal end portion provided with the restricting portion, ; And an engaging member provided on the second guide panel and moving together with the engaging portion having a hook-shaped engaging portion at a front end thereof facing the first guide panel and being constrained by the restricting portion of the restricting member, The first door and the second door are engaged without the first wire interposed therebetween to allow the first door and the second door to be opened even if the first wire is broken Is a characteristic of the technical construction.

Here, the second guide panel is provided with a third pulley, a second wire having one end connected to the first guide panel and the other end directed downward via the second pulley, and a second wire connected to the other end of the second wire And a flat plate elastic module for elastically supporting the first door panel and the second door panel so as to have a tendency to move the first guide panel toward the second guide panel, thereby guiding the first and second doors to be closed.

The elastic module may include: a cabinet having a flat rectangular plate shape and having an inner space; A plurality of fixed pulleys fixed in a line in the cabinet; And a second pulley which is provided so as to be able to move forward and backward from the fixed pulley at a position spaced apart from the fixed pulley in the cabinet and supports the second wire in a staggered manner so as to approach the fixed pulley, A plurality of moving pulleys for allowing withdrawal of the second wire and retracting from the stationary pulley to withdraw the first wire that has been drawn away; Further comprising a plurality of springs for elastically supporting the moving pulley so as to be retracted from the fixed pulley so that the first door and the second door are guided to be closed while having a tendency to draw the second wire into the cabinet .

Further, a safety lever may be further provided on the inner side surface of the first door for forcibly releasing the restraint to the retaining member by tilting the retaining member through a bracket or a wire.

The first guide panel and the second guide panel may be provided with a plurality of rollers that slide along the upper rail.

The door safety opening and closing apparatus for an elevator according to the present invention stably restrains the door from being opened even if a wire that causes the pair of doors to be symmetrically opened and closed together is broken due to an accident,

Further, according to the present invention, the first door and the second door tend to close without any power due to the weight of the elastic module, and the elastic module is formed by stacking a plurality of unit weights, And the own weight required for acting on the second guide panel, the first door and the second door can be flexibly adjusted and optimized.

1 is a front view of a safety door opening / closing device for an elevator according to an embodiment of the present invention;
2 is a front view showing a state in which a door is opened in a safety door opening / closing device for an elevator according to an embodiment of the present invention.
3 is a view for explaining a safe binding operation in a state where the first wire is broken in the door safety opening and closing apparatus for an elevator according to the embodiment of the present invention;
4A to 4C are a series of reference drawings for explaining the operation of the restricting member and the latching member when the door is opened and closed in the door unlocking apparatus for an elevator according to the embodiment of the present invention.
5 is a perspective view for explaining an elastic module in a safety door opening / closing device for an elevator according to an embodiment of the present invention;
6A and 6B are internal views for explaining an internal configuration and an operation of the elastic module in the safety door opening / closing device for an elevator according to the embodiment of the present invention

A safety door opening / closing device for an elevator according to embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention, and are actually shown in a smaller scale than the actual dimensions in order to understand the schematic structure.

Also, the terms first and second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. On the other hand, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

FIG. 1 is a front view of a safety door opening / closing apparatus for an elevator according to an embodiment of the present invention, FIG. 2 is a front view showing a state in which a door is opened in a door safety opening and closing apparatus for an elevator according to an embodiment of the present invention, 1 is a reference view for explaining a safe binding operation in a state in which a first wire is broken in an elevator door safety opening and closing apparatus according to an embodiment of the present invention. 4A to 4C are a series of reference views for explaining the action of the restricting member and the latching member when the door is opened and closed in the door unlocking apparatus for an elevator according to the embodiment of the present invention, Fig. 3 is a perspective view for explaining an elastic module in a safety door opening / closing device for an elevator according to the present invention.

As shown in the drawings, the door safety opening and closing apparatus for an elevator according to an embodiment of the present invention includes a first door 110a and a second door 110b, a first guide panel A first wire 143 and a second wire 152, a restricting member 130 and an engaging member 140, and an elasticity module 160 And the first door 110a and the second door 110b are engaged with each other without the first wire 143 interposed therebetween in a state in which the locking member 130 restrains the locking member 140 .

Such a configuration is very important. As shown in FIG. 3, even if the first wire 143 breaks unintentionally, the first door 110a and the second door 110b (particularly, the second door 110b) And the passengers can be safely protected from fatal accidents by keeping the passengers securely connected through the passageway 130 and the engaging member 140, thereby preventing the passengers from opening.

Hereinafter, the safety door opening / closing device for an elevator according to an embodiment of the present invention will be described in more detail.

The first door 110a and the second door 110b are an outer door installed on each floor of the building and are opened and closed in pairs by a pair of one and the other. The first door 110a and the second door 110b are coupled to the first guide panel 120a and the second guide panel 120b to guide the first guide panel 120a and the second guide panel 120b, (See Fig. 1) or open on both sides (see Fig. 2).

The first guide panel 120a and the second guide panel 120b are coupled to the upper side of the first door 110a and the upper side of the second door 110b to respectively connect the first door 110a and the second door 110b As shown in Fig. Each of the first guide panel 120a and the second guide panel 120b is provided with a plurality of rollers 121a and 121b for sliding along the upper rail 141b. The first door 110a and the second door 110b are slid along the lower rail 141a.

Both the first guide panel 120a and the second guide panel 120b are moved along the first wire 143 forming the orbit while passing through the first pulley 142a and the second pulley 142b It is connected. One end of the first wire 143 is connected to one side of the first bracket 122 of the first guide panel 120a and the other side of the first bracket 122 is connected to the other side of the first bracket 122, And the other end of the first wire 143 circulated after passing through the pulley 142b is connected. When the first guide panel 120a slides in one direction and the first guide panel 120a slides in the other direction, the first wire 143 is rotated in the opposite direction. (Alternatively, The first guide panel 120a may be moved in one direction or the other direction depending on the moving direction.

The second guide panel 120b is connected to the first wire 143 by the second bracket 123 so as to be interlocked with the first guide panel 120a, Is guided from the guide panel 120a via the first pulley 142a to the second pulley 142b by the second bracket 123 in the straight section. When the first guide panel 120a and the second guide panel 120b are interlocked by the first wire 143 with the above configuration, when the first guide panel 120a moves to the center of the middle panel 170 The second guide panel 120b also moves to the center and is collected around the intermediate panel 170. When the first guide panel 120a moves in one direction outwardly of the middle panel 170, It moves in the other direction which is the outward direction thereof and spreads.

The first wire 143 is circulated via the first pulley 142a and the second pulley 142b while one end is connected to the first guide panel 120a as described above, The second guide panel 120b is connected to the guide panel 120a and connected to the second guide panel 120b in the middle to move the second guide panel 120b in a direction symmetrical to the moving direction of the first guide panel 120a, The first door 110a and the second door 110b cooperate with each other so as to be centered or open from the center. The first pulley 142a is installed at a position spaced apart from one side of the first guide panel 120a and at a position spaced apart from the other side of the second guide panel 120b.

The restricting member 130 is installed on the first guide panel 120a and moves together with the restricting portion 131a in the form of a hook at the tip portion facing the second guide panel 120b. The body 131 is hinged to the first guide panel 120a about the rotation axis 132a so that the tip end of the restraining part 131a can be tilted. The restraining member 130 is provided with a lower roller 132 rotatable about the rotation shaft 132a and an upper roller 133 deflected in the vicinity of the lower roller 132, A buffer spring 134 is provided for buffering at the time of tilting.

The engaging member 140 is installed on the second guide panel 120b and moves together with the engaging portion 141 of the restricting portion in the form of a hook at the distal end portion facing the first guide panel 120a, (131a) formed at the tip of the body (131) of the body (130).

It should be noted that the engaging member 140 is not provided on the intermediate panel 170 but is provided on the second guide panel 120b in the configuration of the engaging member 130 and the engaging member 140. [ However, if the latching member 140 is installed on the intermediate panel 170 according to a conventional conventional form, the latching member 130 and the latching portion 141 are coupled to each other If the first wire 143 is broken, the second guide panel 120b is allowed to move and can be opened unnecessarily. Accordingly, the second door 110b is opened during the operation of the elevator car, thereby causing a fatal accident. However, according to the embodiment of the present invention, the fixing member 140 is installed on the second guide panel 120b rather than the intermediate panel 170, The first guide panel 120a and the second guide panel 120b are in a state of being stably coupled with each other in a state in which the engaging member 140 restricts the engaging member 140. As shown in part A of Figure 3, The problem of opening the first door 110a and the second door 110b is completely solved even if the door 143 is broken.

The elastic module 160 serves to close the first door 110a and the second door 110b which are opened by using the elastic force of the spring 163. The first door 110a and the second door 110b are closed by the second wire 152, And is connected to the guide panel 120a to add weight. The second wire 152 is connected to the first guide panel 120a via a third pulley 151 connected to the second guide panel 120b and the other end is directed downward And is connected to a fixed elastic module 160 on the one hand. According to the structure including the elasticity module 160, the elasticity of the spring 163 of the elasticity module 160 tends to move the first guide panel 120a toward the second guide panel 120b, So that the first door 110a and the second door 110b are closed.

6A and 6B, the elastic module includes a fixed pulley 162a, a moving pulley 162b, and a spring 162. The fixed pulley 162a, the moving pulley 162b, (163). The fixed pulley 162a is fixedly installed inside the cabinet 161. The moving pulley 162b is installed in the cabinet 161 so as to be able to move back and forth at a position spaced apart from the fixed pulley 162a and to move the second wire 152 in a zigzag manner together with the fixed pulley 162a So as to allow the second wire 152 to be pulled out and to withdraw the second wire 152 that has been pulled away from the fixed pulley 162a when the second wire 152 moves away from the fixed pulley 162a, . And the spring 163 elastically supports the moving pulley 162b so as to have a tendency to move in a direction away from the fixed pulley 162a. The front and rear surfaces of the cabinet 131 are configured to restrain the rotation axis 162c of the moving pulley 162b so as not to be separated so as to guide the movement of the moving pulley 162b, A guide elongated hole 161a is formed which allows movement only in the guide groove 161a.

According to the pulley structure, as shown in FIG. 6A to FIG. 6B, when the second wire 152 tends to be drawn into the cabinet 161, 161 from the inside.

According to the structure having the above-described elastic module 160, there is a somewhat complicated surface, but since it is provided in a flat plate shape, it can be installed only on one wall of the elevator, Even when one is detached or damaged, it is suitable for stability-conscious elevators as it has the advantage of high reliability in operation with almost no problems in terms of overall function. In addition, the elastic module 160 is advantageous in that there is no fear of generation of vibration or noise as compared with a method in which a weight having a large weight is guided to be closed by a medallion door.

The safety lever 180 is provided to forcibly open the first door 110a and the second door 110b in a state where the restricting member 130 and the engaging member 140 are engaged. To this end, the safety lever 180 is installed on the inner surface of the first door 110a so as to be able to be pulled by hand, and is connected to tilt the restraint member 130 through a bracket or a wire. When such a safety lever is installed, the restraint member 130 and the engaging member 140 are engaged with each other, thereby preventing the door from being opened unnecessarily. Instead, the passenger or the rescue agent must open the door and escape the passenger So that the door can be opened easily.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is clear that the present invention can be suitably modified and applied in the same manner. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.

110a, 110b; Elevator door 120a: first guide panel
120b: second guide panel 130: restraint member
140: latching member 160: elastic module
170: intermediate panel 180: safety lever

Claims (6)

An elevator door opening / closing device installed on each floor of a building,
A first door and a second door which are slidably opened and closed in pairs on one and the other;
A first guide panel and a second guide panel which are respectively engaged with the upper portions of the first door and the second door and guide the sliding opening and closing of the first and second doors while moving along the upper rail;
A first pulley disposed at a position spaced apart from one side of the first guide panel;
A second pulley disposed at a position spaced apart from the other side of the second guide panel;
The first guide panel is connected to the first guide panel and the other end thereof is connected to the first guide panel, and the second guide panel is connected to the other end of the first guide panel, A first wire for moving the second guide panel in a direction symmetrical to the moving direction of the panel so that the first door and the second door cooperate with each other such that the first door and the second door come together at the center or spread from the center;
A restricting member hinged to the first guide panel so as to be able to tilt the distal end portion provided with the restricting portion, ;
And an engaging member which is provided on the second guide panel and moves together and has a hook-shaped hook portion at a front end portion thereof facing the first guide panel and is constrained by a restricting portion of the hook-
The first door and the second door are in a state in which the first door and the second door are held together without passing through the first wire while the first wire and the second door are cut off, Do not allow the door to open,
The second guide panel is provided with a third pulley, a second wire having one end connected to the first guide panel and the other end directed downward via the second pulley, and a second wire connected to the other end of the second wire, Further comprising a flat plate-shaped elastic module for elastically supporting the first door panel and the second door so as to have a tendency to move the first guide panel toward the second guide panel, thereby guiding the first door and the second door to close. Device. delete [2] The apparatus of claim 1,
A cabinet having a flat rectangular plate shape and having an inner space;
A plurality of fixed pulleys fixed in a line in the cabinet;
And a second pulley which is provided so as to be able to move forward and backward from the fixed pulley at a position spaced apart from the fixed pulley in the cabinet and supports the second wire in a staggered manner so as to approach the fixed pulley, A plurality of moving pulleys for allowing withdrawal of the second wire and retracting from the stationary pulley to withdraw the first wire that has been drawn away;
Further comprising a plurality of springs for elastically supporting the moving pulley so as to be retracted from the fixed pulley,
Wherein the second door is guided to close the first door and the second door with a tendency to draw the second wire into the cabinet. The method according to claim 1,
Wherein a safety lever is further provided on the inner side surface of the first door to forcibly release the restraint to the retaining member by tilting the retaining member through a bracket or a wire. The method according to claim 1,
Wherein a plurality of rollers for sliding along the upper rail are installed in the first guide panel and the second guide panel, respectively. A door opening / closing device for an elevator according to any one of claims 1 to 5;
And an elevator car moving between each floor of the building.
KR1020150172605A 2015-12-04 2015-12-04 Door safety open-close apparatus for elevator KR101748313B1 (en)

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KR1020150172605A KR101748313B1 (en) 2015-12-04 2015-12-04 Door safety open-close apparatus for elevator

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KR101748313B1 true KR101748313B1 (en) 2017-06-16

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US11390491B2 (en) * 2016-12-21 2022-07-19 Inventio Ag Device for unlocking a landing door

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