Elevator landing door closing prevention device

Abstract

The objective is to improve the efficiency of elevator landing door closing prevention work by providing an elevator landing door closing prevention device that can be inserted with minimal force. [Solution] The elevator landing door closing prevention device includes an elastically deformable door closing prevention part that is inserted into at least one of the following: the sill groove, the space between the landing door and the three-sided frame provided on the elevator landing, or the space between two overlapping landing doors, to prevent the landing door from closing, and the door closing prevention part includes a compression part.

Description

[Technical Field]

[0001] The present specification relates to a door closing prevention device for an elevator landing door. [Background Art]

[0002] Elevator landing doors have conventionally often been sliding doors. Elevator landing doors are sliding doors of types including two-panel side opening, three-panel side opening, two-panel center opening, and four-panel center opening. Here, during elevator maintenance work, maintenance work has sometimes been performed with the elevator landing door kept open, such as opening the elevator landing door to check the inside of the hoistway or entering the hoistway to get on top of the car. An elevator is provided with a switch that detects whether the elevator landing door is closed, and has a structure in which the elevator does not move up and down unless full closure of the elevator landing door is detected. When performing maintenance work with the elevator landing door open, it is necessary to reliably maintain the elevator landing door in an open state so that the elevator does not move. Accordingly, conventionally, a door closing prevention device for an elevator sliding door that is inserted into a sill groove guiding the lower end of an elevator landing door and prevents the landing door from closing has been known (see, for example, Patent Document 1). Also, a landing door movement restricting tool for an elevator that is inserted between the landing door and the three-sided frame and prevents the landing door from closing has been known (see, for example, Patent Document 2). By the way, although there is no particular description, the door closing prevention devices for elevator landing doors (including the door closing prevention device for an elevator sliding door and the elevator landing door movement restricting tool) in prior art documents are inserted after being elastically deformed, so they are considered to be formed of an elastic material such as solid rubber. For this reason, force is required for insertion, and there is a risk of falling off if the device is not sufficiently inserted. [Prior Art Documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2007-022748 [Patent Document 2] Japanese Patent Publication No. 2015-160736 [Overview of the project] [Problems that the invention aims to solve]

[0004] Therefore, the challenge is to improve the efficiency of elevator landing door closing prevention work by providing an elevator landing door closing prevention device that can be inserted with little force. [Means for solving the problem]

[0005] The door closing prevention device for elevator landing doors is It includes an elastically deformable door-closing prevention part that is inserted into at least one of the following: the threshold groove, the space between the landing door and the three-sided frame provided on the elevator landing, or the space between two overlapping landing doors, to prevent the landing door from closing. The door closing prevention mechanism includes a compression mechanism. [Effects of the Invention]

[0006] This invention provides an elevator landing door closing prevention device that can be inserted with minimal force during the process of preventing elevator landing doors from closing. [Brief explanation of the drawing]

[0007] [Figure 1] Schematic perspective view of the cage according to the embodiment [Figure 2] (a) Front view of the elevator landing door closing prevention device according to the embodiment, (b) Left side view of the elevator landing door closing prevention device according to the embodiment [Figure 3] This figure shows a usage configuration of the elevator landing door closing prevention device according to an embodiment, using the sill groove insertion portion. [Figure 4] This figure shows a usage configuration of the elevator landing door closing prevention device according to an embodiment, using the door gap insertion portion. [Figure 5]This figure shows another usage mode of the elevator landing door closing prevention device according to the embodiment, using the door gap insertion portion. [Figure 6] This figure shows another usage mode of the elevator landing door closing prevention device according to the embodiment, using the door gap insertion portion. [Figure 7] This figure shows another usage mode of the elevator landing door closing prevention device according to the embodiment, using the door gap insertion portion. [Modes for carrying out the invention]

[0008] In each drawing, the dimensions of components may be enlarged or reduced from their actual dimensions for the sake of clarity, and the dimensional ratios between drawings may not be consistent. Furthermore, in each drawing, some components may be omitted for the sake of clarity.

[0009] Terms including ordinal numbers such as "1st," "2nd," etc., are used to describe various components, but these terms are used solely for the purpose of distinguishing one component from others, and the components are not particularly limited by these terms. Furthermore, the number of components including ordinal numbers is not particularly limited; for example, there may be only one. In addition, the ordinal numbers used in the following specification and drawings may differ from the ordinal numbers described in the claims. Also, in the following specification, "contact" includes cases where there is a slight gap (generally 2 mm or less). Also, in the following specification, "flush" includes cases where there is a slight step (generally 1 mm or less).

[0010] First, before describing the configuration of the elevator landing door closing prevention device according to the present invention, an elevator using the elevator landing door closing prevention device according to the present invention will be described with reference to Figure 1. Note that the following embodiments are illustrative examples to aid in understanding the configuration of the elevator landing door closing prevention device, etc., and do not limit the configuration of the elevator landing door closing prevention device according to the present invention.

[0011] As shown in FIG. 1, the elevator 1 includes, for example, a car 3 for carrying people (passengers), a car rope 5 connected to the car 3, and a counterweight 4 connected to the car rope 5. Further, the elevator 1 may include, for example, as in the present embodiment, a processing device 7 that controls each part of the elevator 1, and a driving device 6 that drives the car rope 5 to cause the car 3 and the counterweight 4 to travel in the vertical direction D3.

[0012] In the present embodiment, the configuration is such that the first end of the car rope 5 is fixed to the car 3 and the second end of the car rope 5 is fixed to the counterweight 4, but the configuration is not limited thereto. For example, a configuration may be adopted in which both ends of the car rope 5 are respectively fixed to the hoistway 2, and the car rope 5 is respectively wound around the sheave of the car 3 and the sheave of the counterweight 4, whereby the car rope 5 is respectively connected to the car 3 and the counterweight 4.

[0013] Further, in the present embodiment, the configuration is such that a machine room is provided in an upper part of the hoistway 2, and the driving device 6 and the processing device 7 are disposed inside the machine room, but the configuration is not limited thereto. For example, a configuration may be adopted in which the driving device 6 and the processing device 7 are disposed inside the hoistway 2.

[0014] In each drawing, the first direction D1 is a first lateral direction D1, which is also referred to as the entrance width direction. The second direction D2 is a second lateral direction D2 that is orthogonal to the first lateral direction D1, which is also referred to as the depth direction. The third direction D3 is a vertical direction D3 that is respectively orthogonal to the respective lateral directions D1 and D2, and is the lifting direction in which the car 3 moves up and down.

[0015] As shown in FIG. 1, in the present embodiment, each elevator landing 8 includes a landing door 9 that opens and closes in conjunction with a door of the car 3, a sill 11 that guides a lower end of the landing door 9, and a three-sided frame 10 that surrounds three sides other than the lower end of the opening.

[0016] The above is a description of the elevator 1 that uses the door closing prevention device for an elevator hall door according to the present embodiment. Next, the door closing prevention device for an elevator hall door according to the present embodiment will be described with reference to FIGS. 2 to 4.

[0017] In each figure, the fourth direction D4 is the fourth lateral direction D4, which is also referred to as the compression direction. The fifth direction D5 is a fifth lateral direction D5 that is a lateral direction orthogonal to the fourth lateral direction D4, and the sixth direction D6 is a thickness direction D6 that is orthogonal to each of the lateral directions D4 and D5.

[0018] FIG. 2(a) is a front view of the door closing prevention device 20 for an elevator hall door according to the present embodiment, and FIG. 2(b) is a left side view of the door closing prevention device 20 for an elevator hall door according to the present embodiment. As shown in FIG. 2(a), the door closing prevention device 20 for an elevator hall door includes a door gap insertion portion 29 as a door closing prevention portion at one end in the fifth lateral direction D5, and a threshold groove insertion portion 30 as a door closing prevention portion at the other end in the fifth lateral direction D5. Further, as shown in FIGS. 2(a) and 2(b), the door closing prevention device 20 for an elevator hall door has a shape with a thickness in the thickness direction D6, and is integrally formed, stamped or cut using an elastic member such as rubber.

[0019] As shown in FIG. 2(a), the door gap insertion portion 29 includes a first inclined portion 21 inclined toward one end in the fifth lateral direction D5 of the door closing prevention device 20 for an elevator hall door, a third inclined portion 22 having a smaller inclination angle than the first inclined portion 21 is provided on the other end side of the first inclined portion 21 in the fifth lateral direction D5, and a fourth inclined portion 23 having a larger inclination angle than the third inclined portion 22 is further provided on the other end side of the third inclined portion 22 in the fifth lateral direction D5.

[0020] As shown in FIG. 2(a), the threshold groove insertion portion 30 includes second inclined portions 24 and 25 inclined toward the other end in the fifth lateral direction D5 of the door closing prevention device 20 for an elevator hall door. The second inclined portions 24 and 25 are respectively provided on both sides of the threshold groove insertion portion 30 in the fourth lateral direction D4.

[0021] As shown in Figure 2(a), the door gap insertion portion 29 further includes a first compression portion 26 that penetrates the door gap insertion portion 29 in the thickness direction D6. In this embodiment, the first compression portion 26 is a through hole opened in the thickness direction D6, forming a hollow portion. In this embodiment, the first compression portion 26 has an elongated hole shape with the direction along the fifth transverse direction D5 as viewed from the thickness direction D6 as the longitudinal direction, and is a shape in which a part of the straight portion of the elongated hole shape is connected. Note that the first compression portion 26 has an elongated hole shape with the direction along the fifth transverse direction D5 as viewed from the thickness direction D6 as the longitudinal direction, and may have a shape in which a part of the straight portion of the elongated hole shape is not connected, or may have other shapes such as rectangles or circles.

[0022] As shown in Figure 2(a), in this embodiment, the first compression section 26 is provided in a position that does not overlap with the first inclined section 21 when viewed from the compression direction D4 (fourth transverse direction D4).

[0023] As shown in Figure 2(a), the threshold groove insertion portion 30 includes a second compression portion 27 that penetrates the threshold groove insertion portion 30 in the thickness direction D6. In this embodiment, the second compression portion 27 is a through hole drilled in the thickness direction D6, forming a hollow portion. In this embodiment, the second compression portion 27 has a shape in which circles aligned in the direction along the fifth transverse direction D5 when viewed from the thickness direction D6 are connected by a rectangle. The second compression portion 27 may also have other shapes such as an elongated hole, a rectangle, or a circle.

[0024] As shown in Figure 2(a), in this embodiment, the second compression section 27 is provided in a position that overlaps with the second inclined sections 24 and 25 when viewed from the compression direction D4 (fourth transverse direction D4).

[0025] As shown in Figure 2(a), in this embodiment, a holding hole 28 is provided between the first compression section 26 and the second compression section 27. The holding hole 28 is a through-hole drilled in the thickness direction D6, and is used to provide a holding means, for example, a chain or string, that can be passed through to hold the elevator landing door. Furthermore, by making the chain or string longer and fixing or locking the end opposite to the side connected to the holding hole 28 to one of the landings, the risk of the elevator landing door closing prevention device 20 falling into the hoistway 2 can be reduced.

[0026] The configuration of the elevator landing door closing prevention device 20 according to this embodiment is as described above. Next, using Figures 3 and 4, the method for preventing the landing door 9 from closing in the elevator landing door closing prevention device 20 according to this embodiment will be explained. Note that the following method is provided as an example to help understand the method for preventing the landing door 9 from closing in the elevator landing door closing prevention device 20, and does not limit the configuration of the elevator landing door closing prevention device 20. <Method for preventing the closing of the landing door 9 in the elevator landing door closing prevention device 20>

[0027] First, the method of preventing the landing door 9 from closing using the sill groove insertion part 30 of the elevator landing door closing prevention device 20 will be explained using Figure 3. Figure 3 shows a cross-section of the sill 11 as seen from the width direction D1. The sill 11 is provided with a sill groove 111. The sill groove 111 is concave, formed by the sill groove sides 111a, 111b and the sill groove bottom surface 111c. A guide (not shown) is provided at the lower end of the landing door 9, and when the guide is inserted into the groove 111, the landing door 9 is guided by the guide groove 111 at its lower end, thereby opening and closing the entrance.

[0028] To prevent the landing door 9 from closing, the elevator landing door closing prevention device 20 is inserted into the sill groove 111 below the door stop side of the landing door 9 when the landing door 9 is fully open or partially open. Here, the door stop side is the side that faces the other door in the case of a double door, or the side that faces the three-sided frame in the case of a single door, when the landing door 9 is fully closed.

[0029] Next, the insertion of the elevator landing door closing prevention device 20 into the sill groove 111 will be explained in detail. The worker inserts the elevator landing door closing prevention device 20 into the sill groove 111 from above to below in the vertical direction D3, with the sill groove insertion portion 30 of the elevator landing door closing prevention device 20 facing downwards in the vertical direction D3, and with the fourth horizontal direction in Figure 2(a) coinciding with the depth direction D2 in Figure 3. As shown in Figure 3, when the sill groove insertion portion 30 is inserted into the sill groove 111, the second compression portion 27 is compressed, and the second inclined portions 24 and 25 become parallel to the sill groove sides 111a and 111b.

[0030] As the second compression section 27 is compressed, the elevator landing door closing prevention device 20 can be reliably inserted into the sill groove 111 with less force. Furthermore, the restoring force of the compressed second compression section 27 attempting to return to its original shape provides an elastic force that causes the second inclined sections 24 and 25 to push against the sill groove sides 111a and 111b, thereby reducing the likelihood of the door closing prevention device 20 falling out of the sill groove 111.

[0031] Next, a method for preventing the landing door 9 from closing using the door gap insertion portion 29 of the elevator landing door closing prevention device 20 will be explained using Figure 4. Figure 4 shows a cross-section of the landing door 9 and the three-sided frame 10 as viewed from the vertical direction D3. The landing door 9 and the three-sided frame 10 face each other with a gap (approximately 5 mm) between them.

[0032] To prevent the landing door 9 from closing, the elevator landing door closing prevention device 20 is inserted into the gap between the landing door 9 and the three-sided frame 10 while the landing door 9 is fully open.

[0033] Next, the insertion of the elevator landing door closing prevention device 20 into the gap between the landing door 9 and the three-sided frame 10 will be explained in detail. The worker inserts the elevator landing door closing prevention device 20 into the gap between the landing door 9 and the three-sided frame 10 with the door gap insertion portion 29 facing the insertion direction X in Figure 4, and with the fourth transverse direction in Figure 2(a) and the compression direction Y in Figure 4 coinciding. When the door gap insertion portion 29 is inserted into the gap between the landing door 9 and the three-sided frame 10, the first compression portion 26 is compressed.

[0034] As the first compression section 26 is compressed, the elevator landing door closing prevention device 20 can be reliably inserted into the gap between the landing door 9 and the three-sided frame 10 with minimal force. Furthermore, the restoring force of the compressed first compression section 26 attempting to return to its original shape provides an elastic force that causes the third inclined section 22 to push against the landing door 9 and the three-sided frame 10, thereby reducing the likelihood of the elevator landing door closing prevention device 20 falling out of the gap between the landing door 9 and the three-sided frame 10.

[0035] Furthermore, since the door gap insertion portion 29 is equipped with a first inclined portion 21 that has a larger inclination angle than the third inclined portion 22 adjacent to the tip of the fourth lateral direction D4, the elevator landing door closing prevention device 20 is easily guided into the gap between the landing door 9 and the three-sided frame 10. When the guided elevator landing door closing prevention device 20 is inserted further in, the first compression portion 26, which overlaps with the third inclined portion 22 when viewed from the fourth lateral direction in Figure 2(a), will deform. When viewed from the fourth lateral direction in Figure 2(a), the first inclined portion 21 and the first compression portion 26 do not overlap, so in the initial stage of inserting the elevator landing door closing prevention device 20 into the gap between the landing door 9 and the three-sided frame 10, the first compression portion 26 does not deform, and because it has a larger inclination angle than the third inclined portion 22, it is easier to guide the elevator landing door closing prevention device 20 into the gap between the landing door 9 and the three-sided frame 10.

[0036] [1] Based on the above, the elevator landing door closing prevention device 20 is as in this embodiment. The device includes elastically deformable door-closing prevention parts 29, 30 that are inserted into at least one of the following locations: the threshold groove 111, the space between the landing door 9 and the three-sided frame 10, or the space between two overlapping landing doors 9, to prevent the landing door 9 from closing. The door closing prevention sections 29 and 30 are equipped with compression sections 26 and 27.

[0037] With this configuration, when inserting the elevator landing door closing prevention device 20 into the sill groove 111, between the landing door 9 and the three-sided frame 10, or between two overlapping landing doors 9, the compression parts 26 and 27 deform, allowing for easy insertion with minimal force.

[0038] Furthermore, as the compression parts 26 and 27 are inserted while deforming, elastic force can be obtained by the restoring force of the deformed compression parts 26 and 27 trying to return to their original shape. This reduces the likelihood of the elevator landing door closing prevention device 20 falling out of the sill groove 111, between the landing door 9 and the three-sided frame 10, or between two overlapping landing doors 9.

[0039] [2] The elevator landing door closing prevention device 20 described in [1] above is The compression sections 26 and 27 may be hollow sections that are deformable in a direction perpendicular to the insertion direction of the door closing prevention sections 29 and 30.

[0040] With this configuration, since the compression sections 26 and 27 are hollow, they can be easily deformed in a direction perpendicular to the insertion direction. Therefore, the elevator landing door closing prevention device 20 can be inserted with little force between the sill groove 111, the landing door 9 and the three-sided frame 10, or between two overlapping landing doors 9.

[0041] [3] The elevator landing door closing prevention device 20 described in [1] or [2] above is Door closing prevention parts 29, 30 are An elastically deformable sill groove insertion part 30 that is inserted into the sill groove 111 to prevent the landing door 9 from closing, It may also be an elastically deformable door gap insertion part 29 that is inserted between the landing door 9 and the three-sided frame 10, or between two overlapping landing doors 9, to prevent the landing door 9 from closing.

[0042] With this configuration, depending on the situation, one elevator landing door 9 can be prevented from closing by using the door closing prevention device 20 20 in either the threshold groove 111, between the landing door 9 and the three-sided frame 10, or between two overlapping landing doors 9.

[0043] [4] The elevator landing door closing prevention device 20 described in [3] above is The door gap insertion portion 29 has a first inclined portion 21 at its tip, The compression section 26 does not necessarily have to overlap with the first inclined section 21 when viewed from the compression direction D4.

[0044] With this configuration, since the first inclined portion 21, which is difficult to deform, is provided at the tip of the door gap insertion portion 29, the tip of the door gap insertion portion 29 can be easily inserted between the landing door 9 and the three-sided frame 10, or between two overlapping landing doors 9. Furthermore, once inserted up to the third inclined portion 22, the compression portion 26 deforms in a direction perpendicular to the insertion direction, allowing it to be easily inserted with little force.

[0045] Furthermore, as the compression section 26 is inserted while deforming, elastic force can be obtained by the restoring force of the deformed compression section 26 trying to return to its original shape. This reduces the likelihood of the elevator landing door closing prevention device 20 falling out from between the landing door 9 and the three-sided frame 10, or between two overlapping landing doors 9.

[0046] [5] The elevator landing door closing prevention device 20 described in [3] above is The threshold groove insertion portion 30 has second inclined portions 24 and 25 at both ends in the compression direction D4, When the threshold groove insertion portion 30 is inserted into the threshold groove 111, the compression portion 27 may deform so that the second inclined portions 24 and 25 become parallel to the threshold groove sides 111a and 111b of the threshold groove 111.

[0047] With this configuration, as the compression part 27 is inserted while deforming, elastic force can be obtained by the restoring force of the deformed compression part 27 trying to return to its original shape, thereby reducing the likelihood of the elevator landing door closing prevention device 20 falling out of the sill groove 111.

[0048] It should be noted that the elevator landing door closing prevention device 20 is not limited to the configuration of the embodiment described above, nor is it limited to the effects described above. Furthermore, it goes without saying that the elevator landing door closing prevention device 20 can be modified in various ways without departing from the spirit of the present invention. For example, one or more of the configurations and methods described below may be arbitrarily selected and adopted in the configurations and methods of the embodiment described above.

[0049] (A) In the above embodiment, the door gap insertion part 29 was described as being inserted into the gap between the landing door 9 and the three-sided frame 10 to prevent the landing door 9 from closing, but the configuration is not limited to this. For example, the same function and effect can be obtained even if the door gap insertion part 29 is inserted into the gap between two landing doors 9, 9.

[0050] (B) In addition, although the door gap insertion portion 29 according to the above embodiment has a first inclined portion 21 at its tip, it is not limited to this configuration. For example, the door gap insertion portion 29 may be configured not to have a first inclined portion 21 at its tip.

[0051] (C) Furthermore, although the elevator landing door closing prevention device 20 has been described as comprising both a door gap insertion portion 29 and a sill groove insertion portion 30, it is not limited to this configuration. The elevator landing door closing prevention device 20 may be configured to comprise either the door gap insertion portion 29 or the sill groove insertion portion 30.

[0052] (D) Furthermore, although the elevator landing door closing prevention device 20 has been described as having a retaining hole 28, it is not limited to this configuration. The elevator landing door closing prevention device 20 may also be configured without a retaining hole 28.

[0053] (E) Furthermore, although the compression portions 26 and 27 of the elevator landing door closing prevention device 20 have been described as through holes penetrating in the thickness direction D6, the configuration is not limited to this. The compression portions 26 and 27 may be hollow spaces provided inside the elevator landing door closing prevention device 20 without penetrating it.

[0054] <Method for preventing the closing of other landing doors 9 in the elevator landing door closing prevention device 20> (F) Furthermore, in the elevator landing door closing prevention device 20 according to the above embodiment, the door gap insertion portion 29 is inserted between the landing door 9 and the three-sided frame 10, or between two overlapping landing doors 9, thereby preventing the landing door 9 from closing. However, the elevator landing door closing prevention device 20 is not limited to this method of preventing the landing door 9 from closing.

[0055] As shown in Figure 5, a door hanger 91 is provided at the top of the landing door 9, and the upper end of the landing door 9 is connected to the door hanger 91. The door hanger 91 comprises a plate-shaped door hanger body 911, and a pair of first hanger rollers 912 (only the first hanger rollers 912 on the left side of the page are shown in Figure 5) are provided on the upper side of the door hanger body 911 in the vertical direction D3. A pair of second hanger rollers 913 (only the second hanger rollers 913 on the left side of the page are shown in Figure 5) are provided on the lower side of the door hanger body 911 in the vertical direction D3. A door rail 81 is provided along the width direction D1 on the hoistway 2 side of the upper part of the elevator landing 8. The landing door 9 opens and closes as the first hanger rollers 912 of the door hanger 91 roll along the upper side of the door rail 81. Furthermore, the second hanger roller 913 contacts or approaches the underside of the door rail 81, preventing the landing door 9 from falling off the door rail 8.

[0056] As shown in Figure 5, the door gap insertion portion 29 of the elevator landing door closing prevention device 20 may be inserted between the outer circumference of the first hanger roller 912 and the surface of the door rail 81 on which the first hanger roller 912 rolls, thereby preventing the landing door 9 from closing.

[0057] (G) As shown in Figure 6, the door gap insertion portion 29 of the elevator landing door closing prevention device 20 may be inserted directly or indirectly between the side of the first hanger roller 912 (the axial surface of the first hanger roller 912) and the wall surface of the hoistway 2 on which the door rail 81 is provided, thereby preventing the landing door 9 from closing.

[0058] (H) As shown in Figure 7, the door gap insertion portion 29 of the elevator landing door closing prevention device 20 may be inserted directly or indirectly between the side of the second hanger roller 913 (the axial surface of the second hanger roller 913) and the wall surface of the hoistway 2 on which the door rail 8 is provided, thereby preventing the landing door 9 from closing.

[0059] (I) For example, the execution order of each step, such as the operation, procedure, step, and stage, in the method and apparatus shown in the claims, specification, and drawings can be carried out in any order, as long as the result of the previous step is not used in the later step. For example, even if "first," "next," etc. are used for convenience in the explanation, it does not mean that it is necessary to perform them in that order. [Explanation of Symbols]

[0060] 1...Elevator, 2...Hoistway, 3...Car, 4...Counterweight, 5...Car rope, 6...Drive unit, 7...Processing device, 8...Elevator landing, 9...Landing door, 10...Three-sided frame, 11...Sill, 20...Elevator landing door closing prevention device, 21...First inclined section, 22...Third inclined section, 23...Fourth inclined section, 24,25...Second inclined section, 26...First compression section (compression part), 27...Second compression section (compression part), 28...Holding hole, 29...Door gap insertion section (door closing prevention part), 30...Sill groove Insertion part (door closing prevention part), 81...door rail, 91...door hanger, 111...threshold groove, 111a, 111b...side of sill groove, 111c...bottom of sill groove, 911...door hanger body, 912...first hanger roller, 913...second hanger roller, D1...first lateral direction (width direction), D2...second lateral direction (depth direction), D3...up and down direction, D4...fourth lateral direction (compression direction), D5...fifth lateral direction, D6...sixth lateral direction (thickness direction), X...insertion direction, Y...compression direction

Claims

1. It comprises an elastically deformable door closing prevention part that is inserted into at least one of the following: the threshold groove, the space between the landing door and the three-sided frame provided on the elevator landing, or the space between two overlapping landing doors, to prevent the landing door from closing. The aforementioned door closing prevention unit includes a compression unit, The compression portion is a hollow portion provided that can be deformed in a direction perpendicular to the insertion direction of the door closing prevention portion, The aforementioned hollow portion penetrates in a direction perpendicular to the insertion direction and perpendicular to the compression direction, and is a long through-hole along the insertion direction. Elevator landing door closing prevention device.

2. The aforementioned door closing prevention part is, An elastically deformable sill groove insertion part that is inserted into the sill groove to prevent the landing door from closing, The door gap insertion part is an elastically deformable part that is inserted between the landing door and the three-sided frame, or between two overlapping landing doors, to prevent the landing door from closing. The elevator landing door closing prevention device according to claim 1.

3. The threshold groove insertion portion is provided with a second inclined portion that is inclined in the compression direction toward the tip, The door gap insertion portion is provided with a third inclined portion that is inclined in the compression direction toward the tip, At least one of the second or third inclined portion overlaps with the compression portion by at least a portion when viewed from the compression direction. The elevator landing door closing prevention device according to claim 2.

4. The elevator comprises an elastically deformable door closing prevention part that is inserted into at least one of the following: the threshold groove, the space between the landing door and the three-sided frame provided on the elevator landing, or the space between two overlapping landing doors, to prevent the landing door from closing. The aforementioned door closing prevention part is, Compression section and An elastically deformable sill groove insertion part that is inserted into the sill groove to prevent the landing door from closing, It comprises an elastically deformable door gap insertion portion that is inserted between the landing door and the three-sided frame, or between two overlapping landing doors, to prevent the landing door from closing, The door gap insertion portion has a first inclined portion at its tip, The compression portion does not overlap with the first inclined portion when viewed from the compression direction. Elevator landing door closing prevention device.

5. The elevator comprises an elastically deformable door closing prevention part that is inserted into at least one of the following: the threshold groove, the space between the landing door and the three-sided frame provided on the elevator landing, or the space between two overlapping landing doors, to prevent the landing door from closing. The aforementioned door closing prevention part is, Compression section and An elastically deformable sill groove insertion part that is inserted into the sill groove to prevent the landing door from closing, It comprises an elastically deformable door gap insertion portion that is inserted between the landing door and the three-sided frame, or between two overlapping landing doors, to prevent the landing door from closing, The aforementioned threshold groove insertion portion has a second inclined portion at both ends in the compression direction, When the threshold groove insertion portion is inserted into the threshold groove, the compression portion deforms so that the second inclined portion becomes parallel to the side surface of the threshold groove. Elevator landing door closing prevention device.

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