KR101694203B1 - Elevator door derailment prevention device - Google Patents

Abstract

Disclosed is an elevator door derailment prevention device. According to an aspect of the present invention, the elevator door derailment prevention device comprises: a fixing bracket arranged adjacent to a middle portion of a door room and fixed and installed in a guide groove; a door shoe bracket extended to correspond to a horizontal width of an elevator door, mounted on a lower end of the elevator door, and horizontally slid and moved along the guide groove; and a support bracket arranged and separated from the fixing bracket to correspond to the horizontal width of the elevator door and fixed and installed on one side of the door room. The elevator door derailment prevention device according to embodiments of the present invention has excellent derailment prevention performance with respect to an external impact, is easily applied to a previously installed elevator door or the like, and is constructed at low costs.

Description

[0001] ELEVATOR DOOR DERAILMENT PREVENTION DEVICE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an elevator door detachment prevention device, and more particularly, to an elevator door detachment prevention device capable of preventing a door from being detached by an external impact in a closed state of the door.

Generally, an elevator refers to a facility capable of moving the passenger or cargo between layers while moving up and down through a hoisting machine. Such an elevator includes a hoistway formed in a vertical space of a building or the like, an elevator car which is moved up and down along a hoistway and on which passengers board or load cargo, and a hoisting machine for vertically moving the hoistway car. .

The platform door is a door that separates the platform from the hoistway, and is usually composed of a pair of sliding doors. For convenience sake, such a landing door will be referred to as an elevator door hereinafter. The elevator door closes the hoistway so that passengers on the platform can not approach the inside of the hoistway when the hoist car is moving or staying on another floor. When the hoistway car reaches the floor, the elevator door is opened so that passengers can board the hoistway car.

The elevator door as described above is mounted on and supported by a hanger roller provided on the guide rail of the door opening / closing device, and is moved in the horizontal direction along the guide rail. Further, the lower portion of the door is fastened to the groove of the door sill through a door shoe, and is moved along the door seal. That is, the elevator door is basically supported in a state in which the upper portion is hanged on the hanger roller, and the lower portion is installed in the groove of the door chamber through the door shoe.

However, in the supporting structure of the elevator door as described above, the lower portion of the door has a structure which is considerably weak against the external impact. That is, since the lower portion of the door is supported only by the fastening force inserted into the groove of the door seal, if a large external impact is applied to the door, the door may be detached from the door chamber and the elevator door may be detached. This can lead to human accidents. For example, when a passenger waiting in a passenger compartment strongly pushes an elevator door or a large impact is applied to an outer surface of the door, if the door is detached from the door chamber while the passenger leaves the door, serious safety accidents such as a passenger falling into the passenger compartment May occur.

Various methods for preventing the elevator door from departing have been sought for the above reasons. For example, Korean Utility Model Registration No. 20-00443946 proposes a door seal structure for preventing the escape of an elevator for this purpose. Japanese Laid-Open Patent Application No. 10-2008-0113861 discloses a door detachment preventing door The present invention has proposed an elevator door equipped with a machine. In addition, Japanese Patent Application Laid-Open No. 10-0862302 has proposed a door separation chamber for an elevator which can prevent foreign substances from entering the gap.

However, in the case of the conventional departure-avoidance means as described above, there is a problem that most of cases are not satisfactory in the safety test due to insufficient departure-preventing performance against the external impact. In addition, it can be applied to a newly installed elevator, but it has a problem in application range, for example, in case of an elevator installed, it is impossible to dismantle a large number of parts and re-install a new part. In other words, there is a problem that a number of cases where the elevator doors are not easily compatible and practically impossible to be applied are found.

Registration Practical Utility Model No. 20-00443946 (Mar. 19, 2009) Japanese Patent Application Laid-Open No. 10-2008-0113861 (December 31, 2008) Patent Registration No. 10-0862302 (Oct. 1, 2008)

Embodiments of the present invention are intended to provide an elevator door departure prevention apparatus that can effectively prevent a door from being released from an external impact.

In addition, embodiments of the present invention are intended to provide an escape prevention device for an elevator door that can combine a plurality of safing means to provide a sufficient hair restraining performance despite a strong external impact.

Further, the embodiments of the present invention are intended to provide an elevator door departure-preventing apparatus that is easily applicable to an elevator door or the like installed therein, and thus has excellent compatibility.

According to a first aspect of the present invention, there is provided a door locking device comprising: a fixing bracket disposed adjacent to a center of a door chamber and fixedly installed in a guide groove; A door shoe bracket extending to correspond to the left and right widths of the elevator door and coupled to a lower end of the elevator door and slidably moving left and right along the guide groove; And a support bracket which is spaced apart from the fixing bracket so as to correspond to the width of the elevator door and is fixed to one side of the door chamber, wherein the fixing bracket includes a bottom surface provided with a bolt hole, Wherein the upper surface portion is formed with an access hole for approaching the bolt hole and a bracket coupling portion for fastening one end of the door shoe bracket to the upper surface portion, Wherein the bracket coupling groove is formed adjacent to the side wall of the guide groove on the side of the front and rear width centerline of the upper surface portion, the door shoe bracket including an insertion end And a bent end is provided at the other end of the body part, wherein the upper end of the insertion end has an upper and a lower height And a guide piece extending from the support piece and inserted into the fixing bracket, wherein the support piece has a predetermined angle from the body portion at a predetermined angle Wherein the support bracket has a hooking groove which is engaged with the bent end to limit restraint of upward movement of the door shoe bracket, Can be provided.

According to a second aspect of the present invention, there is provided a door locking device comprising: a fixing bracket disposed adjacent to a center of a door chamber and fixedly installed in a guide groove; A first door shoe bracket coupled to a lower end of the one-side elevator door and slidable left and right along the guide groove; And a second door shoe bracket coupled to the lower end of the door of the other elevator pair which is paired with the one side elevator door and slidable left and right along the guide groove, An access hole for accessing the bolt hole and a bracket coupling groove for fastening one end of the first door shoe bracket are provided on an upper surface portion opposed to the lower surface portion of the guide groove, The door shoe bracket includes an insertion portion at one end toward the fixing bracket and is formed to be engageable with the fixing bracket, and an auxiliary rib is provided at the other end of the door shoe bracket. The second door shoe bracket includes a first The collision portion is provided at the other end, and the collision portion is provided at the lower end of the one- An escape prevention device for the elevator door may be provided which is formed to extend a predetermined distance from the door room central portion.

According to a third aspect of the present invention, there is provided a door shoe, comprising: a first door shoe bracket coupled to a lower end of a first elevator door and slidably moving left and right along a guide groove of a door chamber; A second door shoe bracket coupled to a lower end of the door of the other elevator door, which is paired with the one-way elevator door, and slidably moved left and right along the guide groove; And a support bracket fixed to the door chamber at a predetermined distance from the center of the door so as to correspond to the second door shoe bracket, wherein the first door shoe bracket comprises: And a collision part is provided at one end toward the center of the door chamber and an auxiliary rib is provided at the opposite end of the collision part. The collision part is extended to the lower end of the door of the other elevator by a predetermined distance And the second door shoe bracket is disposed adjacent to the side wall of the guide groove in the guide groove and has an impact part at one end toward the center of the door chamber and an auxiliary rib at the opposite end of the second door shoe bracket, And a second door member extending from the center portion of the door so as to reach a lower end of the one- Li may be provided with a departure prevention apparatus of the elevators door.

The elevator door detachment prevention device according to embodiments of the present invention includes a fixing bracket, a door shoe bracket, and a support bracket. The elevator door is detached or deformed in the impact direction of the elevator door to an upper side Can be effectively prevented.

Further, in the elevator door detachment preventing apparatus according to the embodiments of the present invention, both ends of the door shoe bracket are supported by the fixing brackets and the supporting brackets, respectively, and the sidewalls of the guide grooves can be utilized for assisting the supporting force through the folding portions. The cover and the like can be variously provided, so that it is possible to realize more stable and stable support and departure prevention performance through the plurality of support means.

Further, the elevator door departure prevention apparatus according to the embodiments of the present invention can be easily applied to existing elevator equipments since it can be replaced with existing door shoe or compatible with existing door shoe, And technical compatibility.

1 is a plan view showing a state in which an escape prevention device for an elevator door according to a first embodiment of the present invention is installed in a door seal.
2A is a perspective view showing the fixing bracket shown in FIG.
FIG. 2B is a plan view showing the fixing bracket shown in FIG. 1. FIG.
2C is a front view showing the fixing bracket shown in FIG.
FIG. 3A is a perspective view showing the door shoe bracket shown in FIG. 1. FIG.
FIG. 3B is a plan view showing the door shoe bracket shown in FIG. 1. FIG.
3C is a front view showing the door shoe bracket shown in Fig.
4A is a perspective view showing the support bracket shown in FIG.
FIG. 4B is a plan view showing the support bracket shown in FIG. 1. FIG.
4C is a front view showing the support bracket shown in Fig.
5 is a perspective view showing a first modification of the fixing bracket shown in Figs. 2A to 2C.
6A is a perspective view showing a first modified example of the door shoe bracket shown in Figs. 3A to 3C.
6B is a perspective view showing a second modified example of the door shoe bracket shown in Figs. 3A to 3C.
6C is a perspective view showing a third modified example of the door shoe bracket shown in Figs. 3A to 3C.
7 is a perspective view showing a first modification of the support bracket shown in Figs. 4A to 4C.
8A is a plan view showing a state in which an escape prevention device for an elevator door according to a second embodiment of the present invention is installed in a door seal.
FIG. 8B is a front view showing a state in which an escape prevention device for an elevator door according to a second embodiment of the present invention is installed in a door chamber. FIG.
9 is a perspective view showing the second door shoe bracket shown in Figs. 8A and 8B.
10 is a plan view showing a state in which an escape prevention device for an elevator door according to a third embodiment of the present invention is installed in a door seal.
11 is a perspective view showing the second door shoe bracket shown in Fig.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. It is to be understood, however, that the following examples are provided to facilitate understanding of the present invention, and the scope of the present invention is not limited to the following examples. In addition, the following embodiments are provided to explain the present invention more fully to those skilled in the art. Those skilled in the art will appreciate that those skilled in the art, Will be omitted.

FIG. 1 is a plan view showing a state in which an escape prevention device 1 of an elevator door according to a first embodiment of the present invention is installed in a door chamber D. FIG.

Referring to FIG. 1, a door sill D is disposed at a lower portion of the elevator door and may extend in the left-right direction. A pair of elevator doors may be provided, and the door room D may be formed to extend horizontally sufficiently in consideration of lateral width and moving range of each elevator door. It should be noted that, in FIG. 1, only the portion corresponding to the width of one elevator door is shown for the sake of convenience. 1, the upper side of the door chamber D means the platform side (i.e., the outside of the hoistway), and the lower side of the door chamber D means the inside of the hoistway.

A guide groove G having a predetermined width W1 may be formed in the door chamber D. The guide groove G may extend in the left-right direction from one end to the opposite end of the door chamber D. The guide groove G is structured in such a manner as to be surrounded by the bottom surface and the two side walls G1 and G2, and the upper side of the guide groove G is opened. The two side walls G1 and G2 surrounding the guide groove G may be constituted by a side wall G1 facing the landing side and a side wall G2 facing the inside of the hoistingway. For convenience, the side wall G1 facing the landing side will be referred to as a "landing side wall G1" and the side wall G2 facing the inside of the elevating road will be referred to as a "hoisting-side side wall G2".

(Hereinafter abbreviated as 'escape prevention device 1') according to the present embodiment may include a fixing bracket 11.

The stationary bracket 11 may be disposed at the left and right central portions of the door chamber D. [ 1, only the portion corresponding to the width of one elevator door is shown, so that the fixing bracket 11 is disposed on the left side in the drawing. The fixing bracket 11 may be disposed inside the guide groove G of the door chamber D. Therefore, the front and rear width of the fixing bracket 11 may be formed to be smaller than the front-rear width W1 of the guide groove G or correspond to the front-rear width W1. The fixing bracket 11 can be fixedly installed to the door chamber D through fixing means such as a bolt.

The pair of fixing brackets 11 may be provided so as to correspond to a pair of elevator doors. That is, the pair of fixing brackets 11 can be mounted on the door chamber D in the left and right directions. In this case, the left fixing bracket 11 corresponds to the left elevator door, and the right fixing bracket 11 corresponds to the right elevator door. 1, only one fixing bracket 11 is shown because only the portion corresponding to the width of one elevator door is shown. On the other hand, when the fixing brackets 11 are formed as a pair, the left and right fixing brackets 11 may be formed to be similar to each other.

The escape prevention device 1 according to the present embodiment may include a door shoe bracket 12.

The door shoe bracket 12 can be fastened to the lower portion of the elevator door. Thus, the door shoe bracket 12 can be moved together with the elevator door as the elevator door is moved laterally by the upper door opening / closing device. The door shoe bracket 12 may extend in the left-right direction. Preferably, the door shoe bracket 12 may extend laterally to correspond to the left and right widths of the elevator doors. The door shoe bracket 12 can be disposed in the guide groove G of the door chamber D. [ The door shoe bracket 12 can be disposed in the guide groove G along the longitudinal direction (left and right direction) and can be slid rightward and leftward in the guide groove G as the elevator door moves.

The door shoe bracket 12 may be provided on the left and right sides so as to correspond to the pair of elevator doors. In this case, the left door shoe bracket 12 corresponds to the left elevator door, and the right door shoe bracket 12 corresponds to the right elevator door. It should be noted that only one door shoe bracket 12 is shown in Fig. 1 because only the portion corresponding to the width of one elevator door is shown. When the door shoe brackets 12 are constructed as a pair, the left and right door shoe brackets 12 may be formed to be similar to each other.

The escape prevention device 1 according to the present embodiment may include a support bracket 13.

The support bracket 13 may be fixed to one side of the door chamber D by a distance corresponding to the length of the door shoe bracket 12 from the fixing bracket 11. The door shoe bracket 12 may be fastened to the fixing bracket 11 at one end and may be fastened to the support bracket 13 at the opposite end according to the movement of the elevator door.

The pair of support brackets 13 may be provided so as to correspond to the pair of door shoe brackets 12. In this case, the left support bracket 13 corresponds to the left door shoe bracket 12 and can be installed in the door chamber D, spaced apart from the center fixing bracket 11 to the left. The right support bracket 13 corresponds to the right door shoe bracket 12 and can be installed in the door chamber D to the right from the center fixing bracket 11. [ 1, only one support bracket 13 is shown because only the portion corresponding to the width of one elevator door is shown. When the support brackets 13 are formed as a pair, the left and right support brackets 13 may be formed to be similar to each other.

When the elevator door is closed, the door shoe bracket 12 is moved along the door chamber D so that one end portion (the left end in the drawing) of the door shoe bracket 12 is fixed to the stationary bracket 12 (11), and the opposite end is fastened to the support bracket (13). An external shock applied to the elevator door can be transmitted to the door shoe bracket 12 while the elevator door is closed and the door shoe 12 can be guided by the fixing bracket 11 and the support bracket 13 at both ends of the door shoe bracket 12. [ The bracket 12 can be prevented from being supported and disengaged. As a result, the elevator door is prevented from departing from the external impact.

Hereinafter, each configuration of the departure prevention apparatus 1 will be described in more detail with reference to the drawings.

2A to 2C are views showing the fixing bracket 11 shown in FIG.

Referring to FIGS. 2A to 2C, the fixing bracket 11 according to the present embodiment may be formed by molding a metal plate into a predetermined shape. In general, the fixing bracket 11 may have a rectangular cross-sectional shape and may be formed to extend in the left-right direction by a predetermined length.

The fixing bracket 11 may have an upper surface portion 111, a lower surface portion 112, a front surface portion 113, and a rear surface portion 114. The lower surface portion 111 may be disposed at a predetermined distance from the lower surface portion 112 so as to face the lower surface portion 112 of the door chamber D, . The front face portion 113 and the rear face portion 114 may extend between the upper face portion 111 and the lower face portion 112, respectively. The front face portion 113 refers to one side of the door chamber D facing the hoistway side wall G2 and the rear face portion 114 is disposed on the opposite side to the front face side of the door seal D, Quot;

The lower surface portion 112 may be fixed to the bottom surface of the door chamber D through fixing means such as a bolt. Whereby the fixing bracket 11 can be fixedly installed inside the guide groove (G). The lower surface portion 112 may be provided with a bolt hole 1121 so that a fastening means such as a bolt can be fastened. It is preferable that the bolt hole 1121 is disposed at the center of the lower portion 112 so as to more firmly support the external force transmitted to the fixing bracket 11.

The left and right width L2 of the lower surface portion 112 may be smaller than the left and right width L1 of the upper surface portion 111 by a predetermined amount. Alternatively, the upper surface portion 111, the front surface portion 113, and the rear surface portion 114 may be formed to have the same lateral width L1, and the lateral width L2 of the bottom surface portion 112 may be formed to be smaller . This reduces the area where the fixing means (bolt) at the center of the lower surface portion 112 is fixedly supported (i.e., the area of the lower surface portion 112). Therefore, the lower surface portion 112 can be sufficiently fixedly supported through the fixing means. Further, the fixing force of the fastening means can be entirely applied to the lower portion 112, so that deformation of the rim and the end of the lower portion 112 due to external force can be prevented.

The front portion 113 and the rear portion 114 may each be formed in a rectangular shape. The front portion 113 may be disposed to face the side wall G2 of the hoistway in the guide groove G and the rear portion 114 may be disposed to face the sideboard G1 in the guide groove G .

The upper surface portion 111 is formed in a rectangular shape corresponding to the front surface portion 113 and the rear surface portion 114 as a whole and may include an access hole 1111 and a bracket coupling groove 1112. The access hole 1111 may be formed at a position corresponding to the bolt hole 1121 of the lower surface portion 112 and penetrate through the upper surface portion 111. Therefore, the operator inserts the tool through the access hole 1111 and can fasten the fixing means to the bolt hole 1121 of the lower portion 112.

The bracket coupling groove 1112 may be formed at the left or right end of the upper surface portion 111. Alternatively, the bracket coupling groove 1112 may be formed at one end of the upper surface portion 111 facing the door shoe bracket 12. 2, the bracket coupling groove 1112 may be formed at the right end of the upper surface portion 111 facing the door shoe bracket 12 and open toward the right side.

At this time, the bracket coupling grooves 1112 may be spaced a predetermined distance from the longitudinal center line C1 of the upper surface portion 111 toward the inside of the hoistway. Alternatively, the bracket coupling groove 1112 may be disposed adjacent to the side wall G2 on the side of the hoistway in the guide groove G. [ This is to allow the insertion end 123 to be disposed adjacent to the hoistway side wall G2 with respect to the door shoe bracket 12 to be described later.

The fixing bracket 11 is engaged with the bracket coupling groove 1112 of the upper surface portion 111 so that the insertion end 123 of the door shoe bracket 12 is engaged with the door shoe bracket 12 and the elevator Thereby preventing the door from escaping. That is, the upward end of the insertion end 123 of the door shoe bracket 12 is restricted by the upper surface portion 111 to prevent the escape of the door shoe bracket 12 and the elevator door.

When the external shock is applied after the insertion end 123 of the door shoe bracket 12 is fully inserted into the bracket coupling groove 1112, even if the door shoe bracket 12 rocks back and forth, The door shoe bracket 12 can be prevented from being detached from the door chamber D or twisted because the support shoe 1232 of the door shoe 12 can be held in contact with the bracket coupling groove 1112. [ Furthermore, it is also possible to prevent the door shoe bracket 12 from tilting forward due to the deformation of the elevator door in the impact direction.

The foreign substances stacked in the guide groove G are moved to the left and right center portions or both side ends of the door chamber D as the door shoe bracket 12 reciprocates right and left. And is moved to the center through the inside and is accumulated in the left and right central spaces, a space for cleaning can be secured. FIGS. 3A to 3C are views showing the door shoe bracket 12 shown in FIG.

Referring to FIGS. 3A to 3C, the door shoe bracket 12 may be formed as a metal plate having a predetermined thickness as a whole extended in the left-right direction. As described above, the door shoe bracket 12 can be extended to a length corresponding to the left and right widths of the elevator doors.

As described above, the door shoe bracket 12, which is extended so as to correspond to the left and right width of the elevator door, is hooked to the landing side wall G1 in the guide groove G when the vehicle is impacted, So that it has a function of preventing a considerable part of the bending deformation of the door.

The door shoe bracket 12 may include a body portion 121. The body 121 has a predetermined height in the vertical direction and may extend in the left and right direction. A lower part of the body part 121 may be disposed inside the guide groove G of the door chamber D and an upper part of the body part 121 may be exposed outside the guide groove G. [ That is, the body part 121 can be formed to have a height larger than the vertical height (depth) of the guide groove (G) of the door chamber (D) by a predetermined height. The body portion 121 can be disposed in the guide groove G from the lower end to a portion corresponding to the vertical height H1 of the guide groove G and the upper side thereof is exposed to the outside of the guide groove G .

The upper portion of the body portion 121 exposed to the outside of the guide groove G may be coupled to the lower end of the elevator door. To this end, a bolt hole 1211 for coupling with the elevator door may be provided on the upper part of the body part 121. [ A pair of the bolt holes 1211 may form one set, and a plurality of sets may be disposed to the left and right of the body part 121. Preferably, two sets of bolt holes 1211 may be disposed to the left and right of the body portion 121 as illustrated in the figure. In this case, the body part 121 can be coupled to the elevator door through fixing means such as an elevator door and bolts at two places spaced apart from each other in the left-right direction.

The bolt hole 1211 may be formed as a long hole having a predetermined length larger than the width of the bolt hole 1211 as needed. This enables a certain degree of clearance depending on the machining error, the specification of the elevator, and the like.

Further, the door shoe bracket 12 may include a door shoe 122. The door shoe 122 may be disposed at the lower end of the body part 121 and may be integrally formed with the body part 121. That is, the door shoe bracket 12 according to the present embodiment can combine the functions of the conventional door shoe. The door shoe 122 may be formed of plastic, rubber, or the like, which is separated from the body part 121 made of a metal. The door shoe 122 is slidably contacted with the bottom surface of the door chamber D to guide the elevator door to the left and right. A plurality of door shoe 122 may be provided, and a plurality of door shoe 122 may be spaced left and right. Preferably, each door shoe 122 may be disposed at a position corresponding to a pair of bolt holes 1211, and two of the door shoe 122 may be disposed laterally spaced from the body portion 121 as illustrated in the figure .

The door shoe bracket 12 may have an insertion end 123. The insertion end 123 may be formed integrally with the body portion 121 and may be disposed at one end of the door shoe bracket 12 disposed toward the center fixing bracket 11. With reference to the drawing, such an insertion end 123 is provided at the left end of the door shoe bracket 12. The insertion end 123 can be inserted into the bracket coupling groove 1112 of the fixing bracket 11 in accordance with the movement of the door shoe bracket 12.

More specifically, the insertion end 123 may be composed of a guide piece 1231 and a support piece 1232. [ The support piece 1232 may be connected to the body part 121 through a bending part 124 to be described later and the guide piece 1231 may be formed to extend from the support piece 1232 by a predetermined length. The supporting piece 1232 may be formed to have a vertical height H2 corresponding to the vertical height H3 of the fixing bracket 11 or may be formed to have a predetermined size larger than the height H2 of the fixing bracket 11. The insertion end 123 may be completely inserted into the bracket coupling groove 1112 It can be contacted and supported by the bracket coupling groove 1112. [ The guide piece 1231 may be formed so that the vertical height H4 is lower than the support piece 1232 by a predetermined degree and the insertion end 123 can be guided to be inserted into the bracket coupling groove 1112. An inclined portion 1233 may be provided at the end of the guide piece 1231 to facilitate the movement of the insertion end 123. [

As described above with respect to the fixing bracket 11, the insertion end 123 as described above prevents the door shoe bracket 12 from being detached in the event of an external impact. That is, when the elevator door is closed and the insertion end 123 is inserted into the bracket coupling groove 1112 of the fixing bracket 11, the upper surface portion 111 of the fixing bracket 11 causes the upper side The departure will be limited. Further, when the door shoe bracket 12 is moved forward and backward, the support piece 1232 is held in contact with the bracket coupling groove 1112. Therefore, when the external impact is applied, the insertion end 123 is prevented from being separated by the fixing bracket 11 to the bracket coupling groove 1112, and the supporting force is assisted, thereby effectively preventing the elevator door from being separated or deformed.

The door shoe bracket 12 may have a bent portion 124 connecting the body portion 121 and the insertion end 123. The bending portion (124)

And may extend from the body portion 121 at a predetermined angle inclined to the support piece 1232 of the insertion end 123. [ At this time, the bending portion 124 may be formed to extend from the body portion 121 toward the side wall G2 of the guide groove G in a slanting manner. Therefore, the insertion end 123 described above is disposed adjacent to the side wall G2 on the side of the hoistway compared to the body portion 121. [ The insertion end 123 or the support piece 1232 can be disposed adjacent to the side wall G2 on the side of the hoistway to be contactably supported in the bracket coupling groove 1112. [ Since the insertion end 123 or the support piece 1232 is disposed and supported adjacent to the hoistway side wall G2 as described above, the hoistway side wall G2 can assist the supporting force against the impact applied to the elevator door , It is possible to obtain a stronger supporting force against an external impact.

The door shoe bracket 12 may have a bent end 125 disposed on the opposite side of the insertion end 123. The bent end 125 may extend from the body portion 121 at an end opposite to the insertion end 123. With reference to the drawing, such a bent end 125 is provided at the right end of the door shoe bracket 12. The bent end 125 may be formed at a position higher than the vertical height H1 of the guide groove G and exposed to the outside of the guide groove G. [ That is, the folding end 125 may extend from an upper portion of the body portion 121 exposed to the outside of the guide groove G.

The bending end 125 is advantageous in that it is not necessary to directly process the bolt hole in the elevator door, unlike the conventional detachment prevention device. That is, in the conventional case, two bolt holes are formed at the bent end of the elevator door to connect the door bracket to the support bracket and the like provided on the side of the library. However, in the present embodiment, since the elevator door has the bent end 125, The bolt hole is not directly formed in the door chamber D but is connected to the support bracket 13 provided at one side of the door chamber D to prevent the elevator door from being pushed and released from the elevator door 100. More specifically, May be composed of first to fourth bending pieces 1251 to 1254. The first bent piece 1251 may extend from the body portion 121. The first bent piece 1251 may extend toward the inside of the hoistway so as to be orthogonal to the body portion 121. The second bending piece 1252 may extend from the end of the first bending piece 1251. The second bent piece 1252 extends in the left and right direction so as to be orthogonal to the first bent piece 1251 and may extend toward the opposite side of the insertion end 123 (right side in the figure). The third bent piece 1253 may extend from the end of the second bent piece 1252. The third bent piece 1253 may extend toward the inside of the hoistway like the first bent piece 1251 to be perpendicular to the second bent piece 1252. The fourth bent piece 1254 may extend from the end of the third bent piece 1253. The fourth bent piece 1254 extends in the left-right direction so as to be orthogonal to the third bent piece 1253 and may extend toward the insertion end 123 side (left side in the figure). The second to fourth bending pieces 1252 to 1254 have a "U" shape opening toward the insertion end 123, and can form a latching part 1255.

The door shoe bracket 12 may have an auxiliary rib 126. The auxiliary rib 126 may be provided at one end of the body portion 121 where the bent end 125 is disposed. The auxiliary rib 126 may extend from the body portion 121 toward the landing side. The auxiliary rib 126 may be formed in a range that does not deviate from the vertical height H1 of the guide groove G so as to be disposed in the guide groove G. [ That is, the auxiliary rib 126 may extend from a lower part of the body part 121 disposed inside the guide groove G. The longitudinal length W2 of the auxiliary rib 126 is preferably set in consideration of the position of the door shoe bracket 12 in the guide groove G and the front and rear width W1 of the guide groove G. [ More preferably, the auxiliary rib 126 may be formed so that the end portion 1261 facing the landing side is adjacent to the landing side wall G1 of the guide groove G. [ The auxiliary rib 126 prevents deformation of the door shoe bracket 12 during an external impact and assists the supporting force. That is, the auxiliary rib 126 of the door shoe bracket 12 acts as a support for the platform side wall G1 of the guide groove G when an external shock is applied to prevent the tilting toward the hoistway and the sudden bending deformation of the elevator door And the like.

Figs. 4A to 4C are views showing the support bracket 13 shown in Fig.

4A to 4C, the support bracket 13 is engaged with the bent end 125 of the door shoe bracket 12 so as to be spaced apart from the fixing bracket 11 in the center of the door seal D in the left- . The support bracket 13 may be disposed outside the guide groove G and fixed to one side of the door chamber D. [ The support bracket 13 may be formed by molding a metal plate into a predetermined shape, such as the fixing bracket 11 or the door shoe bracket 12 described above.

More specifically, the support bracket 13 may include a body portion 131 having a latching groove 1311 formed therein. The engaging groove 1311 is engaged with the engaging portion 1255 of the bent end 125 and is opened toward the opposite side of the fixing bracket 11 in the arrangement direction .

The supporting bracket 13 may include a mounting piece 132 fastened to one side of the door chamber D. The mounting piece 132 may be integrally formed with the body part 131 at the lower end of the supporting bracket 13 and may be firmly fixed to one side of the door chamber D through fixing means such as a bolt. Although not shown in the drawing, the mounting piece 132 may be provided with one or more bolt holes for fastening the fixing means.

Further, the support bracket 13 may be provided with a cover portion 133. The cover part 133 may be spaced apart from the body part 131 toward the hoistway by a predetermined distance and may be connected to the body part 131 by a connecting piece 1331 at the upper end. The cover portion 133 may form a predetermined accommodation space 1332 between the body portion 131 and the cover portion 133. When the bent end 125 of the door shoe bracket 12 is engaged with the engaging groove 1311, a part of the bent end 125 (the fourth bent piece 1254) . Therefore, in this case, even if the door shoe bracket 12 is moved due to an external impact, the bent end 125 can be prevented from being detached from the support bracket 13. The release preventing pieces 1333 may be formed at the lower end of the end portion (left end in the drawing) of the cover portion 133 facing the side of the fixing bracket 11, if necessary. The release preventing pieces 1333 can protrude toward the body portion 131 and prevent the bent end 125 from being detached from the receiving space 1332. [

Hereinafter, the operation of the departure prevention apparatus 1 will be described.

First, when the elevator door is moved in the closing direction, the door shoe bracket 12 moves together with the elevator door along the guide groove G. The door shoe bracket 12 approaches the fixing bracket 11 disposed at the center of the door chamber D and the insertion end 123 at one end of the door shoe bracket 12 is engaged with the bracket coupling And is inserted into the groove 1112. Further, the bent end 125 of the other end of the door shoe bracket 12 is engaged with the engagement groove 1311 of the support bracket 13.

Therefore, when the elevator door is completely closed, the door shoe bracket 12 is in a state in which one end is fastened to the fastening bracket 11 and the other end is fastened to the support bracket 13. In this state, when the impact to the elevator door is applied to the elevator door, the impact is transmitted to the door shoe bracket 12, and the impact is transmitted through the insertion end 123 of the door shoe bracket 12 And is supported by the bracket 11. The door shoe bracket 12 is prevented from being detached from the door chamber D or the guide groove G in the impact direction (toward the inside of the hoistway).

In such a case, the elevator door is subjected to a force for bending deformation due to the impact, so that the door shoe bracket 12 may be detached to the upper side of the guide groove (G). As a result, the elevation of the elevator door due to the bending deformation can be prevented because the bent end 125 of the door shoe bracket 12 is engaged with the supporting bracket 13. In other words, in the case of the departure prevention apparatus 1 according to the present embodiment, since the bent end 125 is engaged with the support bracket 13 and the upward departure is also restricted by the restraint, It is also possible to effectively prevent deviation. Also, the phenomenon that the elevator door is pushed to the inside of the hoistway by the external impact can also be prevented.

Modifications of the fixing bracket 11, the door shoe bracket 12 and the support bracket 13 described above will now be described.

5 is a perspective view showing a first modification of the fixing bracket 11 shown in Figs. 2A to 2C.

Referring to FIG. 5, the fixing bracket 11-1 according to the present modification may be formed as a pair of left and right fixing brackets 11 connected to each other. Therefore, unlike the above-described fixing bracket 11, the fixing bracket 11-1 according to the present modification can fix and support the right and left door shoe brackets 12 with only one fixing bracket 11-1 .

Specifically, the fixing bracket 11-1 according to the present modification includes an access hole 1111-1 for approaching a tool or the like with a bolt hole on a lower surface, bracket coupling grooves 1112-1 and 1113 -1). The access hole 1111-1 and each of the bracket coupling grooves 1112-1 and 1113-1 may be formed similarly to the access hole 1111 and the bracket coupling groove 1112 of the above-described embodiment. However, the bracket coupling grooves 1112-1 and 1113-1 are different from each other in that they are formed on both the right and left sides of the fixing bracket 11-1, unlike the above-described embodiment.

6A is a perspective view showing a first modification of the door shoe bracket 12 shown in Figs. 3A to 3C.

Referring to FIG. 6A, the door shoe bracket 12-1 according to the present modification may be formed in a shape in which the folded end 125 is removed from the door shoe bracket 12 described above. Therefore, the door shoe bracket 12-1 according to the present modification is advantageous in that it can be easily manufactured and the manufacturing cost can be reduced. The remaining portion except for the bent end 125 can be formed to be similar to the door shoe bracket 12 of the above-described embodiment.

6B is a perspective view showing a second modification of the door shoe bracket 12 shown in Figs. 3A to 3C.

Referring to FIG. 6B, the door shoe bracket 12-2 according to the present modification is formed such that the folded portion 124 is omitted from the door shoe bracket 12, and the door shoe 122 is removed . The door shoe bracket 12-2 of this type is useful when the conventional door shoe S is to be used as it is.

Specifically, the door shoe bracket 12-2 according to the present modification may include an insertion portion 123-2 formed at one end of the body portion 121-2. The insertion portion 123-2 corresponds to the insertion portion 123 of the above-described embodiment. However, the insertion portion 123-2 according to the present modification may be extended from the body portion 121-2 without the bending portion 124 of the above-described embodiment. That is, the insertion portion 123-2 according to the present modification may be extended in a straight line from the body portion 121-2. This is because the conventional door shoe S is directly assembled to the body portion 121-2 in the case of the present modification and a separate bending portion 124 is not required due to the thickness of the bracket of the door shoe S .

In addition, the door shoe bracket 12-2 according to the present modification may have a mounting space 122-2 for mounting the door shoe S therein. The mounting space 122-2 of this modification corresponds in position to the door shoe 122 of the above-described embodiment. However, in this modified example, the door shoe 122 is not integrally formed with the body portion 121-2 as in the above-described embodiment, and a separate door shoe S is assembled, Only the mounting space 122-2 for assembling and disposing the shoes S may be provided.

6C is a perspective view showing a third modified example of the door shoe bracket 12 shown in Figs. 3A to 3C.

Referring to FIG. 6C, the door shoe bracket 12-3 according to the present modification may be provided in a form in which the folded portion 125-2 is removed from the door shoe bracket 12-2 of the second modification have. Therefore, the door shoe bracket 12-3 according to the present modification has an advantage in terms of ease of manufacture and manufacturing cost.

7 is a perspective view showing a first modification of the support bracket 13 shown in Figs. 4A to 4C.

7, the supporting bracket 13-1 according to the present modification includes a body part 131-1, a mounting piece (not shown) provided at the lower end of the body part 131-1 and fastened to one side of the door chamber D, And a cover portion 133-1 disposed at a predetermined distance from the body portion 131-1. The body part 131-1, the mounting piece 132-1 and the cover part 133-1 may be integrally formed as a single part.

The cover part 133-1 can be connected to the body part 131-1 through a connecting piece 1331-1 at the upper end and can be connected to the body part 131-1 through a predetermined accommodation space 1332-1 ) Can be formed. In this case, the bent end 125 of the door shoe 12 may be inserted into the accommodation space 1332-1 of the fourth bent piece 1254 to be engaged with the support bracket 13-1 have.

If necessary, the reinforcing piece 1312-1 may be extended to one end of the body part 131-1 by a predetermined length. The reinforcing piece 1312-1 assists the supporting force of the door shoe bracket 12 against the bent end 125 in the event of an external impact, so that the effect of preventing the elevator door from being pushed and released can be enhanced.

8A is a plan view showing a state in which an escape prevention device 2 of an elevator door according to a second embodiment of the present invention is installed in a door chamber D. 8B is a front view showing a state in which the escape prevention device 2 of the elevator door according to the second embodiment of the present invention is installed in the door chamber D. Fig.

8A and 8B, the departure prevention apparatus 2 according to the present embodiment is configured such that the departure prevention apparatus 1 of the first embodiment described above is constituted by a pair of left and right corresponding parts, .

The separation preventing device 2 according to the present embodiment may include a fixing bracket 21 disposed at a central portion of the door chamber D and fixedly installed on a bottom surface of the guide groove G. [ The fixing bracket 21 according to the present embodiment can be formed to be similar to the fixing bracket 11 of the first embodiment described above (see Figs. 2A to 2C). However, in the case of the first embodiment described above, the left and right pair of fixing brackets 11 are provided, whereas the separation preventing device 2 according to the present embodiment may be composed of only one fixing bracket 21, have.

Also, the departure prevention apparatus 2 according to the present embodiment may include first and second door shoe brackets 22a and 22b. The first door shoe bracket 22a is disposed on the left side in the figure and can be inserted into the fixing bracket 21 with an insertion portion at one end toward the fixing bracket 21. Such a first door shoe bracket 22a may be formed similarly to the door shoe bracket 12-3 according to the third modification in the above-described embodiment (see Fig. 6C).

On the other hand, the second door shoe bracket 22b is disposed on the right side in the drawing and does not have a fixing bracket 11 corresponding to the first door shoe bracket 22a described above. Instead, the second door shoe bracket 22b may be formed so as to extend a predetermined distance from the center of the door chamber D so that one end of the second door shoe bracket 22b is disposed below the adjacent elevator door (the elevator door on the left side in the drawing). That is, the second door shoe bracket 22b may be formed to extend sufficiently to have one end reach the lower elevator door left side in the drawing.

Fig. 9 is a perspective view showing the second door shoe bracket 22b shown in Figs. 8a and 8b.

Referring to FIG. 9, the second door shoe bracket 22b is formed similarly to the door shoe bracket 12-3 according to the third modified example, And the impact portion 223b is provided at one end of the body portion 221b at the corresponding position. The impact portion 223b may be formed at a height slightly lower than the body portion 221b.

Referring again to Figures 8a and 8b, the impact portion 223b of the second door shoe bracket 22b as described above, when the elevator door is completely closed, is positioned below the adjacent elevator door (i.e., the left elevator door) do. Therefore, when an external impact is applied to the elevator door corresponding to the second door shoe bracket 22b, the collision portion 223b collides with the lower portion of the adjacent elevator door, and the guide groove G of the second door shoe bracket 22b, Out deviation can be prevented. That is, the second door shoe bracket 22b is prevented from being released through the weight of the left elevator door. In this case, since the left elevator door corresponding to the first door shoe bracket 22a is fixedly supported by the fixing bracket 21 via the first door shoe bracket 22a, the second door shoe bracket 22b So that the external impact transmitted through the first door shoe 22a can be supported through the fixing bracket 21 of the first door shoe bracket 22a.

As described above, the departure prevention apparatus 2 according to the present embodiment includes only one fixing bracket 21 and utilizes the self weight of the elevator door to prevent departure, thereby facilitating the installation and simplifying the component configuration.

10 is a plan view showing a state in which the escape prevention device 3 of the elevator door according to the third embodiment of the present invention is installed in the door chamber D.

Referring to FIG. 10, the escape prevention apparatus 3 according to the present embodiment may include first and second door shoe brackets 32a and 32b. In the escape prevention apparatus 3 according to the present embodiment, the fixing bracket 11 of the first embodiment described above can be omitted. Disengagement of the first and second door shoe brackets 32a and 32b can be prevented by direct collision of the first and second door shoe brackets 32a and 32b under the elevator door.

More specifically, the first door shoe bracket 32a is disposed on the left side in the drawing, and extends in the left and right direction of the elevator door, and a collision portion 323a is formed at one end of the door chamber D toward the right- And an auxiliary rib 3261a may be provided at the other end of the opposite side. The collision portion 323a may be formed to extend beyond the center of the door chamber D by a predetermined length so that one end of the collision portion 323a is disposed below another adjacent elevator door (elevator door on the right side in the drawing). Therefore, the deviation of the first door shoe bracket 32a to the upper side is prevented by the impact portion 323a colliding with the lower portion of the right elevator door.

The first door shoe bracket 32a may be formed in the same manner as the second door shoe bracket 22b described with reference to Fig. 9 in the second embodiment described above.

On the other hand, the second door shoe bracket 32b is disposed on the right side in the figure, and extends in the left and right direction to correspond to the right elevator door, and has a collision portion 323b at one end toward the right- And an auxiliary rib 3261b and a bent end 325b may be provided at the other end of the opposite side.

11 is a perspective view showing the second door shoe bracket 32a shown in Fig.

11, the impact portion 323b may be formed to extend to a certain extent from the center of the door chamber D, and may be formed to be similar to the impact portion 323a of the first door shoe bracket 32a described above And the auxiliary rib 3261b can be formed to be similar to the auxiliary rib 3261a of the first door shoe bracket 32a described above. Further, the bent end 325b may be formed to be similar to the bent end 125 in the door shoe bracket 12 of the first embodiment described above (see Figs. 3A to 3C).

Referring to FIG. 10 again, in the departure-avoidance apparatus 3 according to the present embodiment, the fixing bracket 11 is omitted, and the first and second door shoe brackets 32a and 32b are respectively disposed on the right or left elevator door lower So that departure can be prevented. At this time, since the first and second door shoe brackets 32a and 32b can be stacked and arranged at the central portion of the door chamber D, the first door shoe bracket 32a is disposed adjacent to the landing side wall G1 And the second door shoe bracket 32b is disposed adjacent to the hoistway side wall G2.

Meanwhile, the separation preventing device 3 according to the present embodiment may further include a support bracket 33. The support bracket 33 is fastened to the second door shoe bracket 32b provided with the bent end 325b to assist the supporting force of the second door shoe bracket 32b. In this embodiment, the support bracket 33 may be provided to correspond to the second door shoe bracket 32b, and the support bracket 33 may be omitted from the first door shoe bracket 32a The door shoe bracket 32a is provided with only the auxiliary rib 3261b without a folding step). This is to minimize the device configuration and facilitate installation and fabrication. However, it is needless to say that a plurality of support brackets 33 may be provided to correspond to the first and second door shoe brackets 32a and 32b, respectively.

The support bracket 33 of this embodiment can be formed in the same manner as the support bracket 13 of the first embodiment described above and modifications thereof (see Figs. 4A to 4C and Fig. 7).

The above-described departure-avoidance device 3 has no fixing bracket at the center of the door chamber D and has a good appearance and is easy to install. The first door shoe 32a and the second door shoe bracket 32b are disposed at the center of the door seal D so that no foreign matter is caught in the center of the door shoe 32a when the first and second door shoe brackets 32a and 32b are moved left and right. The occurrence of errors can be minimized. Further, even if a foreign substance accumulates on the central portion of the door chamber D, cleaning can be facilitated.

On the other hand, at the time of an external impact, the first and second door shoe brackets 32a and 32b disposed at the lower portions of the left and right elevator doors collide with the lower portion of the elevator door, (32a, 32b) can be prevented. When an impact is applied to the first door shoe bracket 32a, an external impact force can be transmitted to the second door shoe bracket 32b through the elevator door, and the support bracket 32b coupled to the second door shoe bracket 32b 33 to assist in preventing separation and jamming.

As described above, the elevator door detachment prevention device according to the embodiments of the present invention includes the fixing bracket, the door shoe bracket, and the support bracket. The elevator door is detached in the impact direction of the elevator door, It is possible to effectively prevent the upward departure from the yarn and the pushing to the inside of the hoistway.

Further, in the elevator door detachment preventing apparatus according to the embodiments of the present invention, both ends of the door shoe bracket are supported by the fixing brackets and the supporting brackets, respectively, and the sidewalls of the guide grooves can be utilized for assisting the supporting force through the folding portions. The cover and the like can be variously provided, so that it is possible to realize more stable and stable support and departure prevention performance through the plurality of support means.

Further, the elevator door departure prevention apparatus according to the embodiments of the present invention can be easily applied to existing elevator equipments since it can be replaced with existing door shoe or compatible with existing door shoe, And technical compatibility.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, many modifications and changes may be made by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims. The present invention can be variously modified and changed by those skilled in the art, and it is also within the scope of the present invention.

1: Device for preventing escape of the elevator door 11: Fixing bracket
12: Door shoe bracket 13: Support bracket
D: Door seal G: Guide groove

Claims (3)

A fixing bracket 11 disposed adjacent to a central portion of the door chamber D and fixedly installed in the guide groove G;
A door shoe bracket 12 extending to correspond to the left and right widths of the elevator door and coupled to a lower end of the elevator door and slidably moving along the guide groove G; And
And a support bracket (13) spaced from the fixing bracket (11) so as to correspond to the width of the elevator door and fixed to one side of the door chamber (D)
The fixing bracket 11 has a bottom surface 112 having a bolt hole 1121 fixed to the bottom surface of the guide groove G while a width L2 of the bottom surface 112 is opposed The access hole 1111 for accessing the bolt hole 1121 and the door shoe bracket 12 are formed in the upper surface portion 111. The access hole 1111 is formed in the upper surface portion 111, A bracket coupling groove 1112 to which one end of the bracket coupling groove 1112 is coupled,
The bracket coupling groove 1112 is formed adjacent to the side wall G2 of the guide groove G of the guide groove G2 with respect to the longitudinal centerline C1 of the upper surface portion 111,
The door shoe bracket 12 has an insertion end 123 at one end of a body part 121 extending to the left and right and a bent end 125 at the other end of the body part 121,
The insertion end 123 is formed with a support piece 1232 which is formed to have a predetermined height larger than the vertical height H3 of the fixing bracket 11 and can be contactably supported by the bracket coupling groove 1112, And a guide piece 1231 extending from the support piece 1232 and inserted into the fixing bracket 11,
The support piece 1232 is connected to the body part 121 through a bent part 124 extending at a predetermined angle from the body part 121,
Wherein the support bracket includes a latching groove for engaging the bent end of the bent bracket so as to restrain the upward movement of the door shoe bracket. delete delete

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