KR20110083986A - Elevator door with reinforced derail prevention structure - Google Patents

Abstract

PURPOSE: An elevator door having an anti-separation structure which prevents the separation of door rail is provided to prevent damage to an anti-separation bracket from an inner wall of a door rail due to external shock. CONSTITUTION: An elevator door having an anti-separation structure comprises a door panel(20), a guide shoe(30), and an anti-separation bracket(40). The door panel is independently installed on the separate platform from the door of an elevator cage. The guide shoe is formed on the door panel. The guide shoe is combined in the guide groove of the door rail. The anti-separation bracket comprises an inner side(42) and an outer side(44) and is formed in sheet form. The anti-separation bracket is combined in the guide groove of the door rail.

Description

Elevator door with reinforced derail prevention structure

The present invention relates to an elevator landing door complementing the departure prevention structure, and more particularly, even if an external impact is applied due to a passenger's mistake or mischief in the landing, the lower part is reliably prevented from being randomly separated from the door rail. It relates to an elevator landing door that can be fully protected against safety accidents.

Elevators are elevators that are installed on each floor of a high-rise building to allow people or cargo to move. Most elevators use a counterweight, cable, and a fixed pulley to move the motor.

Each floor of the building is provided with a platform at a location where the elevator cage stops, and the platform is provided with elevator platform doors to prevent the passengers from falling into the platform and to wait safely.

When the elevator cage door is positioned on the floor, the elevator landing door is opened simultaneously with the opening of the door installed in the elevator cage so that passengers can get on or off, and a shoe provided in the lower part of the elevator landing door is formed on the door rail. Sliding sideways by the door opening and closing control device installed on the upper side in the state accommodated in the slide groove. The shoe is installed to prevent the elevator landing door from falling off.

However, when the elevator landing door is subjected to a strong shock from the outside, the shoe installed in the lower part receives a very large external force directly, so that the shoe contained in the door rail is bent or the fixing member such as a bolt fixing the shoe is loose and lost. It often happens that the landing door falls into the landing passage. This will cause serious casualties and property damage.

The elevator platform door is provided with a guide shoe at the lower end thereof, and the guide shoe part is opened and closed sidely coupled to the door rail installed at the elevator hatch. Since the part is bent inwardly (that is, the elevator cage direction) and at the same time the elevator platform door is arbitrarily opened as the guide shoe part is separated from the door rail, a safety accident such as a passenger falling may occur.

It is an object of the present invention to provide an elevator landing door that is installed in a landing on each floor of a building separately from a lifting cage that moves an elevator pit, and the lower part is randomly separated from the door rail even when an external impact is applied in the landing. It is an object of the present invention to provide an elevator landing door complementary to a departure prevention structure designed to contribute to the prevention of safety accidents by reliably preventing them.

According to the present invention for achieving the above object, the door panel 20 is installed upright in the hatch separate from the door of the lifting cage that moves in the vertical direction along the elevator pit, and is provided in the lower portion of the door panel 20 And a guide shoe 30 slidably coupled to the guide groove 3 of the door rail 1 installed at the hatch, and having a plate shape having an inner surface 42 and an outer surface 44. 20 is provided on the lower side and comprises a departure prevention bracket 40 coupled to the guide groove (3) of the door rail (1) installed in the platform, and the outer surface 44 of the separation prevention bracket 40 and The separation distance between the inner surface 42 of the separation prevention bracket 40 and the inner wall portion 3c of the guide groove 3 as compared with the separation distance D between the outer wall portions 3b of the guide groove 3. The separation prevention bracket 40 is the door pad so that (d) is relatively small The elevator landing door supplement the withdrawal prevention structure, characterized in that provided in the lower side of (20) is provided.

A space nut 50 is provided on the lower inner surface 42 of the door panel 20, and the outer surface 44 of the release preventing bracket 40 is in contact with the space nut 50. The bolt 52 penetrating the separation preventing bracket 40 is fastened to the space nut 50 so that the separation preventing bracket 40 is disposed at a position eccentrically rearward from the vertical center line of the door panel 20. It is characterized by.

On the outer surface 44 of the separation prevention bracket 40 provided in the lower door panel 20, an auxiliary support part 60 accommodated in the guide groove 3 of the door rail 1 is protruded. It is done.

The auxiliary support part 60 is provided with a curved portion 160 on a surface facing the outer wall portion 3b constituting the guide groove 3 of the door rail 1, the curved portion 160 is the upper side In the lower portion is characterized in that the plurality of circular arcs having a radius of curvature is increased continuously.

The departure prevention bracket 40 is characterized in that the inner surface 42 is further provided with an auxiliary departure prevention surface 140, the surface is roughened.

Both ends of the door panel 20 have a first bead 22 bent in a lifting cage direction and a second bead secondly bent in parallel with the door panel 20 at an end of the first bead 22. 24 is provided, a reinforcement panel 70 having a relatively thicker thickness is provided below the inner surface 42 of the door panel 20, and a space is provided on the inner surface 42 of the reinforcement panel 70. The nut 50 is fixed so that the bolt 52 penetrating the release preventing bracket 40 is fastened to the space nut 50 so that the release preventing bracket 40 is connected to the reinforcement panel by the space nut 50. It is fixed in a state spaced apart from the inner surface 42 of the 70, characterized in that the inner surface 42 of the door panel 20 is provided with a reinforcing bar 80 extending in the vertical direction.

The present invention provides a door to the release prevention bracket so that the separation distance between the inner surface of the release prevention bracket and the inner wall of the guide groove is relatively small compared to the separation distance between the outer surface of the release prevention bracket, which is the main part, and the outer wall of the guide groove of the door rail. Mounted on the lower side of the panel, the separation prevention bracket is coupled as close as possible to the inner wall forming the guide groove of the door rail, so that the impact force applied to the separation prevention bracket momentarily can be much lower than before. Therefore, when the impact force is applied at the landing point of the elevator landing door, the separation prevention bracket is greatly deformed to prevent the departure from the guide groove of the door rail. Therefore, various safety is caused by the lower part of the elevator landing door being opened arbitrarily. The accident can be prevented in advance.

In other words, in the present invention, since the separation prevention bracket, which is a main part, is disposed as close as possible to the inner wall of the guide groove of the door rail, the separation prevention bracket may be pressed against the inner wall of the guide groove of the door rail, thereby preventing a phenomenon of being hit. As the release prevention bracket is pushed down, the high impact force that hits the guide groove of the door rail strongly is eliminated, so the departure prevention bracket is easily detached from the door rail by the external impact applied to the elevator landing door. It is possible to prevent the phenomenon of opening arbitrarily, thereby making it possible to make full efforts to prevent various safety accidents.

In addition, the auxiliary support is further provided on the outer surface of the separation prevention bracket which is the main part in the present invention, the auxiliary support protrudes as close as possible to the outer wall constituting the guide groove of the door rail, the external impact applied to the elevator landing door When the elevator landing door is bent, the separation prevention bracket is not caught in the guide groove of the door rail but is strongly caught (so-called jam phenomenon), thereby more reliably preventing the departure prevention bracket under the elevator landing door. Therefore, ultimately, the elevator landing door may further contribute to the prevention of safety accidents due to the random opening.

Figure 1 is an exploded perspective view showing the main part of the elevator landing door lower portion according to the present invention
Figure 2 is a perspective view showing a state in which the main portion shown in Figure 1 combined
3 is a view showing an installed state of the elevator platform door shown in FIG. 2 from the inside;
Figure 4 is a side cross-sectional view showing a state in which the main portion of the elevator landing door of the present invention is coupled to the door rail
Figures 5a and 15b is a graph showing a comparison of the amount of impact applied to the departure prevention bracket when the impact force is applied to the elevator platform door of the present invention
Figure 6 is an exploded perspective view showing the main part of the elevator landing door lower portion according to another embodiment of the present invention
Figure 7 is a side cross-sectional view showing a state in which the main portion of the elevator platform door shown in Figure 6 is coupled to the door rail
Figure 8 is an exploded perspective view showing the main part of the elevator landing door lower portion according to another embodiment of the present invention
FIG. 9 is a side cross-sectional view showing a state in which main parts of the elevator landing door shown in FIG. 8 are coupled to a door rail; FIG.
10A is a front view of the landing door assembly prior to safety assessment.
10B is a front view of the landing door assembly after safety assessment.
Figure 11a is a photograph showing the guide shoe and the departure prevention bracket before safety evaluation
Figure 11b is a photograph showing the guide shoe and departure prevention bracket after the safety evaluation
12A is a photograph showing the lower drop prevention bracket before safety evaluation
12b is a photograph showing the lower departure prevention bracket after the safety evaluation
13A is a photograph showing a hanger and uptrust roller before safety assessment
13B is a photograph showing the hanger and uptrust roller after safety assessment
14A is a photograph showing the uptrust roller before safety evaluation
14B is a photograph showing the uptrust roller after safety assessment
Figure 15a is a photograph showing the top departure prevention structure before safety evaluation
15b is a photograph showing the top departure prevention structure after safety evaluation

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Figure 1 is an exploded perspective view showing the main part of the elevator landing door lower portion according to the present invention, Figure 2 is a perspective view showing a state in which the combined main part shown in Figure 1, Figure 3 is an installed state of the elevator landing door shown in Figure 2 4 is a side cross-sectional view showing a state in which the main part of the elevator landing door of the present invention is coupled to the door rail. Referring to this, the present invention is a door panel 20 which is installed upright in the hatch separately from the door of the lifting cage that moves in the vertical direction along the elevator pit, and the door provided in the lower portion of the door panel 20 A guide shoe 30 slidably coupled to the guide groove 3 of the rail 1 and a plate shape having an inner surface 42 and an outer surface 44 are provided on the lower side of the door panel 20. And an anti-separation bracket 40 accommodated in the guide groove 3 so as to be closer to the inner wall portion 3c than the outer wall portion 3b of the guide groove 3 of the door rail 1 installed in the platform. It is an elevator landing door complementing the departure prevention structure.

The door panel 20 has a rectangular plate shape, and both ends of the door panel 20 have a first bead 22 perpendicularly bent in a lifting cage direction and a door panel at an end of the first bead 22. The second bead 24 bent in the direction parallel to the inner surface 42 of the (20) is provided. Therefore, the strength of the door panel 20 itself can be further reinforced.

In addition, a relatively thicker reinforcement panel 70 is provided below the inner surface 42 of the door panel 20. The thickness of the reinforcement panel 70 is about twice that of the door panel 20. At this time, the reinforcement panel 70 is a flat reinforcement portion 72 directly in contact with the lower side of the inner surface 42 of the door panel 20, and horizontally extended in the lifting cage direction from the upper end of the flat reinforcement portion 72 It is a structure which has the reinforcement part 74 and the upper reinforcement part 76 extended upward from the edge part of this horizontal support part. Since the reinforcement panel 70, which is relatively thicker than the door panel 20, is attached to the lower side of the inner surface 42 of the door panel 20, the strength of the entire lower part of the door panel 20 may be increased. . The reinforcement panel 70 may be attached to the inner surface 42 of the door panel 20 using a strong adhesive or a bonding agent, and both ends of the reinforcement panel 70 may be provided at both ends of the door panel 20. By being attached in the state of entering the second bead 24, the first bead 22, the second bead 24 and the reinforcing panel 70 itself is linked to further reinforce the strength of the door panel 20.

The inner side 42 of the door panel 20 is further provided with a reinforcement bar 80 extending in the vertical direction. The reinforcement bar 80 has a channel-shaped reinforcement 82 having a cross-sectional recess and a side reinforcement extending outwardly at both ends of the channel-shaped reinforcement 82 and attached to the inner surface 42 of the door panel 20. As a structure having the portion 84, the side reinforcement portion 84 is fixed to the inner surface 42 of the door panel 20 via a strong adhesive or the like. In addition, the lower end of the reinforcement bar 80 has a structure joined by a method such as welding in the state of being fitted inside the upper reinforcement portion 76 of the reinforcement panel 70. The reinforcement bar 80 may further increase the strength of the door panel 20 itself, and because the lower end side of the reinforcement bar 80 is joined to the reinforcement panel 70, the reinforcement bar 80 and the reinforcement panel 70. By the interlocking operation of the door panel 20 itself can be further strengthened.

The release preventing bracket 40 is fixed to the lower inner surface 42 of the door panel 20. It is preferable that the separation preventing bracket 40 is also fixed to the upper inner surface 42 of the door panel 20. Specifically, the reinforcement panel 70 is joined to the center of the lower inner side 42 of the door panel 20, and the space nut () is provided on the inner side 42 of the flat reinforcement 72 of the reinforcement panel 70. 50 is fixed by welding or the like, so that the bolt 52 hole of the separation prevention bracket 40 is opened while the upper outer surface 44 of the separation prevention bracket 40 is in contact with the space nut 50. As the penetrating bolt 52 is fastened to the space nut 50, the release preventing bracket 40 is supported by the space nut 50 and the bolt 52 to be rearward from the vertical line in the vertical direction of the door panel 20. It is placed in a more eccentric position. In other words, the anti-separation bracket 40 has a substantially rectangular plate shape having an outer surface 44 and an inner surface 42, and the outer surface 44 and the door rail 1 of the anti-separation bracket 40. Distance (d) of the inner surface (42) of the separation prevention bracket 40 and the inner wall (3c) of the guide groove (3) compared to the separation distance (D) between the outer wall (3b) of the guide groove (3) The separation prevention bracket 40 is provided on the lower side of the door panel 20 so as to be relatively small. See FIG. 4.

Therefore, the separation preventing bracket 40 may be coupled in a state as close as possible to the inner wall portion 3c constituting the guide groove 3 of the door rail 1. At this time, the separation distance d between the inner surface 42 of the separation prevention bracket 40 and the inner wall portion 3c of the guide groove 3 is preferably about 0.5 mm to 1.1 mm. While the separation prevention bracket 40 slides smoothly along the guide groove 3 of the door rail 1, it can be referred to as an optimum separation distance installed as close to the inner wall portion 3c of the guide groove 3 as possible.

In addition, the separation prevention bracket 40 is relatively thicker than the thickness of the reinforcement panel 70, the thickness of the separation prevention bracket 40 is about 5 to 7 times the thickness of the door panel 20. When an external impact force is applied to the elevator landing door, the separation prevention bracket 40 is a thickness that can withstand a sufficient strength.

According to the present invention having such a configuration, the separation prevention bracket (compared with the separation distance D between the outer surface 44 of the separation prevention bracket 40 and the outer wall portion 3b of the guide groove 3 of the door rail 1) By mounting the anti-separation bracket 40 on the lower side of the door panel 20 so that the separation distance d between the inner surface 42 of the 40 and the inner wall 3c of the guide groove 3 is relatively small, the elevator Impact force is applied to the door panel 20 direction, that is, the lifting cage direction at the landing, and the door panel 20 is bent and the release prevention bracket 40 at the bottom of the door panel 20 comes up. Since the bracket 40 is coupled to the inner wall portion 3c forming the guide groove 3 of the door rail 1 as close as possible, the impact force applied to the release preventing bracket 40 is momentarily applied. It can be much lower than that.

Therefore, when the impact force is applied in the landing position of the elevator landing door, the departure prevention bracket 40 can be greatly deformed to prevent the departure from the guide groove 3 of the door rail 1, so that the lower part of the elevator landing door It is possible to prevent various safety accidents due to the random opening while falling out.

In other words, the guide groove 3 of the door rail 1 has a shape having an outer wall portion 3b and an inner wall portion 3c at the front and rear of the bottom portion 3a. ) Is not disposed as close as possible to the inner wall portion 3c of the guide groove 3, but is located in the center of the guide groove 3 or located in the outer wall portion 3b of the guide groove 3 (that is, the separation prevention bracket If 40 is far from the inner wall portion 3c of the guide groove 3 of the door rail 1, when the impact force is applied from the outside of the elevator landing door in the landing hall, the door panel 20 is bent and released. As the prevention bracket 40 is pushed, the impact force that hits the guide groove 3 of the door rail 1, in particular, the inner wall 3c, is doubled or more, and thus the separation prevention bracket 40 is pushed and hit by the impact. When the impact force doubles or exceeds, the deviation preventing bracket 40 changes more. Because as easily dislodged from the grooves (3) of the door rail (1), it will have a lot more room for an elevator landing door to be opened at random.

However, in the present invention, since the separation preventing bracket 40, which is a main part, is disposed as close as possible to the inner wall portion 3c of the guide groove 3 of the door rail 1, the guide groove 3 of the door rail 1 is provided. It is possible to prevent the phenomenon that the separation prevention bracket 40 pushes against the inner wall portion 3c, and thus the high impact force that strongly hits the guide groove 3 of the door rail 1 while the release prevention bracket 40 is pushed. Since there is no room for action, the departure prevention bracket 40 is easily released from the door rail 1 by an external shock applied to the elevator landing door, thereby preventing the elevator landing door from being arbitrarily opened. In addition, various safety accidents can be prevented.

For example, the inner surface 42 of the separation prevention bracket 40 is disposed to be as close as possible to the inner wall portion 3c of the guide groove 3 of the door rail 1 so that the separation prevention bracket 40 of the door rail 1 By eliminating the phenomenon of being strongly hit by the guide groove 3, even if an impact force is applied to the elevator landing door, the departure preventing bracket 40 does not leave the guide groove 3 of the door rail 1, so that the elevator landing door is It has the effect of erasing various safety accidents due to the arbitrarily open. The impact force is increased when an object hits a lot away from other objects, but the impact force is attenuated when an object hits another object without a space between one object and another.

In addition, when an impact force is applied to the elevator landing door, the door panel 20 is bent and at the same time, the release preventing bracket 40 also bends upward while bending to some extent. When the separation prevention shoe oil itself is bent as closely as possible to the inner wall portion 3c of the guide groove (3) of the rail (1), the outer surface (44) portion of the separation prevention bracket (40) is the door rail (1) guide groove (3). Since the inner wall 42 of the release preventing bracket 40 and the inner wall portion 3c of the guide rail 3 of the door rail 1 are engaged at a so-called double point, The anti-separation bracket 40 may not be detached and may be sufficiently large, and this phenomenon may also more reliably prevent the phenomenon of the anti-separation bracket 40 from escaping from the door rail 1.

For reference, a method of designing the thickness of the release preventing bracket 40 to be sufficiently thick to almost fill the guide groove 3 of the door rail 1 may be considered. In this case, the guide rail 3 of the door rail 1 may be considered. If foreign matter such as dust is caught in the elevator platform door may not slide smoothly, in the present invention, the inner surface 42 of the separation prevention bracket 40 is the door rail (1) of the guide groove (3) As close to the inner wall portion 3c as possible, the outer surface 44 of the separation preventing bracket 40 is designed to be adequately secured in the outer wall portion 3b of the guide groove 3 of the door rail 1. will be.

5a and 5b is a view showing a comparison of the impact force applied to the separation prevention bracket 40, which is the main part of the elevator landing door according to the present invention. The separation preventing bracket 40 is not disposed as close as possible to the inner wall 3c of the guide rail 3 of the door rail 1, but is disposed in the center of the guide groove 3 or the outer wall 3b of the guide groove 3. If it is in the state, as shown in the comparative example of FIG. The impact force that hits the guide groove 3, in particular the inner wall portion 3c of the double or more, and thus the impact force is doubled or more due to the impact while the separation prevention bracket 40 is pushed, thereby preventing the departure prevention bracket ( 40 is more deformed can be easily pulled out of the guide groove (3) of the door rail (1) has a lot of problems in safety.

However, in the present invention, the separation preventing bracket 40, which is a main part, is disposed as close as possible to the inner wall portion 3c of the guide groove 3 of the door rail 1, and the inner wall portion of the guide groove 3 of the door rail 1 Since the separation prevention bracket 40 can be prevented from being pushed against 3c), as shown in FIG. 5B, it can be seen that the impact force applied to FIG. 5A is considerably smaller than that shown in FIG. 5A. Due to the external shock applied to the elevator landing door, the departure prevention bracket 40 can be easily detached from the door rail 1, thereby preventing the elevator landing door from being arbitrarily opened, thereby preventing all kinds of safety accidents. You will be able to.

The following shows the safety evaluation results of the elevator landing door according to the present invention, as a result shows that the elevator landing door according to the present invention is suitable in several aspects, such as ensuring safety.

<Safety Assessment Result>

1. Overview

Checking the landing door assembly whether the landing door is able to withstand without deviating when impacted with kinetic energy of 450 J according to the test method of soft pandalum in KS B EN 81-1 Annex J.

2. Evaluation target

Product Name: Platform door assembly including platform door escape prevention bracket

Model: SL-33 Type [2 central opening and closing, effective width 800mm ~ 1100mm, effective height 2000mm ~ 2100mm, cold rolled stainless steel sheet (STS) 1.5mm, no security window]

3. Evaluation Criteria

Elevator inspection standard [Notice 2008 of Korean Institute of Standards and Technology No. 2008-733 (2008.11.7)] 3.1.2 (6) ④, 3.1.2 (6) ⑤ and 3.9

Inspection items Inspection standard


3.1.2 (6) ④ The assembly of the landing doors shall be capable of withstanding without leaving the door when subjected to impacts of 450 J of kinetic energy in accordance with the soft pendulum test method of Annex J of KS B EN 81-1. However, kinetic energy may be applied to 308J when at least 50% of the effective entrance area is provided with laminated glass for the purpose of prospecting. 3.1.2 (6) ⑤ Platform door guide shoes should be well engaged with the thresholds (door rails). To confirm this, the manufacturer shall submit to the inspection body the engagement depth of the landing door guide shoe and the threshold (door rail) identified during the impact test according to 3.1.2 (6) ④.

4. Evaluation result

The landing door assembly, which includes the door frame with the landing door departure prevention function, withstands the impact of 450J kinetic energy without falling off.

5. Evaluation History

5.1 2 central opening and closing methods (effective width 800mm, effective height 2000mm)

5.1.1 Evaluation environment: Temperature-20.2 ℃

Humidity-61.7%

5.1.2 Impact Strength Equipment

Equipment name Platform Door Specifications Impact energy Platform door safety evaluation facility Max W 5,000 × H 3,000 Up to 450 J

5.1.3 Platform Doors and Platform Door Assemblies

division form
Door opening and closing device 2 sheets center opening: SL-33 Type
Platform door

material Cold Rolled Stainless Steel Sheet (STS): 1.5mm rescue General structure (no security window) standard Effective Width 800mm, Effective Height 2000mm Detachment Bracket Upper part: Structure that door and door frame (door rail) engage
Lower part: Reinforcement stand for preventing guide shoe separation Guide shoe Min buried depth: 16mm seal 5.7mm or less clearance between door and door rail

5.1.4 Evaluation Results

division Check item I'm after result Picture
Results for the shock


Hanger roller breakage or breakage none none fitness Figure 13a ~
14B Hanger rail breakage none none fitness Figure 13a ~
14B Guide shoe breakage or damage none none fitness 11A ~
Figure 12b Seal breakage none none fitness 11A ~
Figure 12b Breakaway prevention bracket broken none none fitness 11A ~
12B, 15A-15B



Reference result

Guide shoe buried depth

Closing side
17.1 mm
17.5mm
-
- Door rail side 16.5mm 16.5mm - - Door and door rail clearance

Closing side
5.6 mm
5.4mm
-
- Door rail side 5.7 mm 5.9 mm - - Uptrust Roller or Accent Roller

Closing side
0.5mm or more
-
-
- Door rail side 0.5mm or more - - -

5.2 2 central opening and closing methods (effective width 800mm, effective height 2100mm)

5.2.1 Evaluation environment: Temperature-23.5 ℃

Humidity-46.7%

5.2.2 Impact Strength Equipment

Equipment name Platform Door Specifications Impact energy Platform door safety evaluation facility Max W 5,000 × H 3,000 Up to 450 J

5.2.3 Platform Doors and Platform Door Assemblies

division form
Door opening and closing device 2 sheets center opening: SL-33 Type
Platform door

material Cold Rolled Stainless Steel Sheet (STS): 1.5mm rescue General structure (no security window) standard Effective Width 800mm, Effective Height 2100mm Detachment Bracket Upper part: Structure that door and door frame (door rail) engage
Lower part: Reinforcement stand for preventing guide shoe separation Guide shoe Min buried depth: 17mm seal 5.5mm or less clearance between door and door rail

Evaluation results

division Check item I'm after result Picture
Results for the shock


Hanger roller breakage or breakage none none fitness Figure 13a ~
14B Hanger rail breakage none none fitness Figure 13a ~
14B Guide shoe breakage or damage none none fitness 11A ~
Figure 12b Seal breakage none none fitness 11A ~
Figure 12b Breakaway prevention bracket broken none none fitness 11A ~
12B, 15A-15B



Reference result

Guide shoe buried depth

Closing side
17.5mm
17.0mm
-
- Door rail side 18.5mm 18.5mm - - Door and door rail clearance

Closing side
5.5mm
5.9 mm
-
- Door rail side 5.2 mm 5.5mm - - Uptrust Roller or Accent Roller

Closing side
0.5mm or more
-
-
- Door rail side 0.5mm or more - - -

5.3 Central opening and closing method (effective width 1100mm, effective height 2100mm)

5.3.1 Evaluation environment: Temperature-23.6 ℃

Humidity-48.9%

5.3.2 Impact Strength Equipment

Equipment name Platform Door Specifications Impact energy Platform door safety evaluation facility Max W 5,000 × H 3,000 Up to 450 J

5.3.3 Platform door and platform door assembly

division form
Door opening and closing device 2 sheets center opening: SL-33 Type
Platform door

material Cold Rolled Stainless Steel Sheet (STS): 1.5mm rescue General structure (no security window) standard Effective Width 1100mm, Effective Height 2100mm Detachment Bracket Upper part: Structure that door and door frame (door rail) engage
Lower part: Reinforcement stand for preventing guide shoe separation Guide shoe Min buried depth: 18mm seal 5.7mm or less clearance between door and door rail

Evaluation results

division Check item I'm after result Picture
Results for the shock


Hanger roller breakage or breakage none none fitness Figure 13a ~
14B Hanger rail breakage none none fitness Figure 13a ~
14B Guide shoe breakage or damage none none fitness 11A ~
Figure 12b Seal breakage none none fitness 11A ~
Figure 12b Breakaway prevention bracket broken none none fitness 11A ~
12B, 15A-
Fig 15b



Reference result

Guide shoe buried depth

Closing side
18.2mm
18.0mm
-
- Door rail side 18.5mm 17.5mm - - Door and door rail clearance

Closing side
5.5mm
5.7 mm
-
- Door rail side 5.7 mm 6.6 mm - - Uptrust Roller or Accent Roller

Closing side
0.5mm or more
-
-
- Door rail side 0.5mm or more - - -

On the other hand, Figure 6 is a perspective view showing an exploded main part of the lower part of the elevator landing door according to another embodiment of the present invention, Figure 7 shows a state in which the main part of the elevator landing door shown in Figure 6 is coupled to the door rail (1) Side cross section view. According to the present invention shown in Figures 6 and 7, the outer surface 44 of the separation prevention bracket 40 provided in the lower door panel 20, the auxiliary house accommodated in the guide groove 3 of the door rail (1) The support 60 is protruded. The auxiliary support 60 may be formed integrally in the form of a block on the outer surface 44 of the separation prevention bracket 40 by relatively thickening the thickness of the separation prevention bracket 40, the departure prevention bracket 40 It may be configured in the form of a block attached to the outer surface (44), such as by welding, it may be configured by joining a plurality of bolts 52 by welding or the like at regular intervals. Preferably, the plurality of auxiliary supporting parts 60 are provided on the outer surface 44 of the separation preventing bracket 40 at regular intervals. The reason is to prevent the smooth slide operation of the elevator landing door due to the jamming of foreign matter.

The auxiliary supporting part 60 protrudes to be as close as possible to the outer wall part 3b constituting the guide groove 3 of the door rail 1, and is separated when the elevator landing door is bent by an external impact applied to the elevator landing door. The prevention bracket 40 does not escape from the guide groove 3 of the door rail 1 but is strongly caught (so-called jam phenomenon), thereby causing the separation prevention bracket 40 of the elevator landing door lower than the separation phenomenon. With certainty, ultimately, the elevator landing door can further contribute to the prevention of accidents caused by the random opening of the elevator landing door.

8 is an exploded perspective view showing a main part of the lower part of the elevator landing door according to another embodiment of the present invention, and FIG. 9 is a side showing a state in which the main part of the elevator landing door shown in FIG. 8 is coupled to the door rail 1. It is a cross section. According to the present invention illustrated in FIGS. 8 and 9, the auxiliary support part 60 is provided with a curved part 160 on a surface facing the outer wall part 3b constituting the guide groove 3 of the door rail 1. The curved portion 160 has a structure in which a plurality of circular arc portions 160a, 160b, and 160c of which a radius of curvature increases from the upper side to the lower side are continuously connected.

Therefore, when the separation prevention bracket 40 itself is deformed and caught in two places of the inner wall portion 3c and the outer wall portion 3b of the guide rail 3 of the door rail 1, circular arc portions 160a and 160b having different curvature radii. And 160c), the separation prevention bracket 40 more smoothly induces the occurrence of a jam phenomenon that is tightly caught in the guide groove 3 of the door rail 1, such a phenomenon is also the departure prevention bracket 40 is a door rail Further contribute to preventing the phenomenon that the guide groove (3) is separated from (1).

In addition, according to the present invention, the anti-separation bracket 40 may further include an auxiliary anti-separation surface 140 having a rough surface on the inner surface 42. The auxiliary anti-separation surface 140 may be provided in various ways, such as being knurled or processed with bumpy protrusions. The auxiliary anti-separation surface has a function to more reliably prevent the phenomenon that the anti-separation bracket 40 falls out by increasing friction between the guide grooves 3 of the door rail 1, which is also an elevator The lower part of the landing door contributes to preventing the phenomenon of opening and leaving the door rail (1). In other words, when the surface of the separation prevention bracket 40 is roughly processed by the auxiliary release preventing surface 140, the uneven auxiliary release preventing surface 140 of the release preventing bracket 40 is inside the door rail 1. Since the wall part 3c (or the outer wall part 3b) is not easily pulled out, the jam phenomenon is induced more smoothly, thereby more reliably preventing the departure of the elevator landing door, thereby further increasing safety. .

The elevator landing door of the present invention is slidably coupled to the hatch of the elevator platform by a support structure such as a hanger and an uptrust roller (or an accent roller) to the upper and lower door rails installed in the hatch. It is a photograph showing the state before and after the safety evaluation of the landing door of the present invention. As can be seen from this picture, in the elevator landing door of the present invention, the inner surface 42 of the separation prevention bracket 40 is disposed to be as close as possible to the inner wall portion 3c of the guide rail 3 of the door rail 1. By eliminating the phenomenon that the departure prevention bracket 40 strongly hits the guide groove 3 of the door rail 1, the departure prevention bracket 40 is guide guide 3 of the door rail 1 even when an impact force is applied to the elevator landing door. Since there is no deviation from), it has the effect of erasing various safety accidents caused by the elevator landing door arbitrarily open.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various permutations and modifications can be made without departing from the spirit of the present invention. It will be obvious to him.

20. Door panel 30. Guide shoe
40. Detachment bracket 50. Space nut
60. Auxiliary Supports

Claims (6)

Apart from the door of the lifting cage moving up and down along the elevator pit, the door panel 20 is installed upright in the hatch, and the guide groove 3 of the door rail 1 provided in the door panel 20 is provided in the hatch. The guide shoe 30 slidably coupled to the plate) and a plate shape having an inner surface 42 and an outer surface 44 are provided on the lower side of the door panel 20 and installed on the boarding door. It is configured to include a separation prevention bracket 40 coupled to the guide groove (3) of the), between the outer surface 44 of the separation prevention bracket 40 and the outer wall portion (3b) of the guide groove (3) The separation prevention bracket 40 is relatively smaller than the separation distance D so that the separation distance d between the inner surface 42 of the separation preventing bracket 40 and the inner wall portion 3c of the guide groove 3 is relatively small. ) Is provided on the lower side of the door panel 20, the separation prevention structure, characterized in that Elevator landing door complements.
The lower inner surface 42 of the door panel 20 is provided with a space nut 50, and the outer surface 44 of the release preventing bracket 40 is the space nut 50. When the bolt 52 penetrating the release preventing bracket 40 in contact with the space nut 50 is fastened to the space nut 50, the release preventing bracket 40 is rearward from the vertical line in the vertical direction of the door panel 20. Elevator landing door complementary to the separation prevention structure, characterized in that arranged in an eccentric position.
The auxiliary support part 60 of claim 1, wherein an outer surface 44 of the separation preventing bracket 40 provided below the door panel 20 is accommodated in the guide groove 3 of the door rail 1. Elevator landing door complementary to the separation prevention structure, characterized in that the protrusion formed).
According to claim 3, The auxiliary support portion 60 is provided with a curved surface portion 160 on the surface facing the outer wall portion 3b constituting the guide groove 3 of the door rail (1), the curved surface Part 160 is an elevator landing door complementary to the separation prevention structure, characterized in that the arc has a structure in which the radius of curvature increases from the upper side to the lower side continuously.
4. The elevator landing door of claim 3, wherein the separation prevention bracket (40) further includes an auxiliary departure prevention surface (140) having a rough surface on the inner surface (42).
According to claim 1, wherein both ends of the door panel 20, the first bead 22 bent in the lifting cage direction, and in the direction parallel to the door panel 20 at the end of the first bead 22 A second bent bend 24 is provided, a reinforcement panel 70 having a relatively thicker thickness is provided below the inner surface 42 of the door panel 20, and the inside of the reinforcement panel 70. A space nut 50 is fixed to the surface 42, and a bolt 52 penetrating the release preventing bracket 40 is fastened to the space nut 50 so that the release preventing bracket 40 is fixed to the space nut 50. It is fixed in the state spaced apart from the inner surface 42 of the reinforcement panel 70 by the), the inner surface 42 of the door panel 20 is provided with a reinforcement bar 80 extending in the vertical direction Elevator platform doors that complement the breakaway structure.

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