Elevator

Abstract

To provide an elevator capable of suppressing a decrease in workability when maintenance work is carried out.SOLUTION: An elevator comprises a holding jig 7 for holding a door-closing blocking tool A which is temporarily used for blocking door closing of a landing door 42 opening / closing a gap between an elevator landing and a hoistway according to sliding. The door-closing blocking tool A is provided separately from the landing door 42. The holding jig 7 is provided on a hoistway side of the landing door 42.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to an elevator including a holder that holds a door closing stopper for preventing the closing of a landing door.

Background Art

[0002] The landing door is provided at a landing entrance and is configured to close the landing entrance when no external force acts thereon. Therefore, for example, when it is desired to keep the landing door open for maintenance work or the like, a door closing prevention device described in Patent Document 1 has been used. This door closing prevention device includes a lower end side portion having a thickness dimension equal to or less than the groove width of a first guide groove of a first threshold provided at the lower edge portion of an elevator entrance, and an upper end side portion integrally extending from the lower end side portion and having a maximum thickness dimension of the extended portion set to be larger than the groove width of the first guide groove. Further, the longitudinal sectional shapes of the lower end side portion and the upper end side portion are trapezoidal by making the thickness between the lower end side portion and the upper end side portion an inclined shape that expands toward the upper end side portion. Furthermore, the longitudinal dimensions of the lower end side portion and the upper end side portion are set so as to obtain a sufficient gripping margin for pulling out the lower end side portion from the first guide groove or press-fitting the lower end side portion into the first guide groove when detaching the door closing prevention device from the first guide groove of the first threshold. In addition, when the lower end side portion and the upper end side portion are press-fitted into the first guide groove, the length is set so as to obtain a press-contact area capable of generating a sufficient frictional force to prevent door closing.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, when performing maintenance work on an elevator, the worker needs to bring the door closing prevention device to the work site. However, if the worker forgets the door closing prevention device, the worker has to find a way to maintain the open state of the landing door, such as using a hand-held tool. Therefore, the workability during maintenance work has been reduced.

[0005] Therefore, an object of the present invention is to provide an elevator capable of suppressing a decrease in workability during maintenance work.

Means for Solving the Problems

[0006] The present invention is a door closing prevention tool temporarily used to prevent the closing of a landing door that opens and closes between an elevator landing and a hoistway by sliding, and includes a holder that holds a door closing prevention tool provided separately from the landing door, and the holder is provided on the hoistway side of the landing door, and it is an elevator.

[0007] According to the above configuration, even if the worker forgets to bring the door closing prevention tool to the work site, the closing of the landing door can be prevented by using the door closing prevention tool held by the holder, and since the holder is provided on the hoistway side of the landing door, the door closing prevention tool can be arranged in a place where the elevator users cannot see.

[0008] Also, in the present invention, the holder may be arranged on the door closing side of the landing door.

[0009] According to the above configuration, since the holder is arranged on the door closing side of the landing door, the worker can easily take the door closing prevention tool held by the holder.

[0010] Also, in the present invention, the door closing prevention tool is composed of a compressible elastic member, and the holder may hold the door closing prevention tool in a compressed state.

[0011] According to the above configuration, since the holder holds the door closing stopper in a compressed state, for example, it is possible to prevent the door closing stopper from falling from the holding portion into the hoistway due to vibrations transmitted to the landing door or the like.

[0012] Further, in the present invention, the door closing stopper and the holder may be connected by a connecting member.

[0013] According to the above configuration, since the door closing stopper and the holder are connected by the connecting member, for example, it is possible to prevent the door closing stopper from falling from the holder into the hoistway.

Effect of the Invention

[0014] As described above, according to the present invention, since the operator can prevent the closing of the landing door by using the door closing stopper supported by the holder, it is possible to suppress a decrease in workability during maintenance work.

Brief Description of the Drawings

[0015]

Figure 1

Figure 2

Figure 3

Figure 4

Mode for Carrying Out the Invention

[0016] Hereinafter, an elevator 1 according to an embodiment of the present invention will be described with reference to the drawings.

[0017] In the following description, the direction in which the landing door 42 and the car door 31 open and close is defined as the "opening / closing direction X", the direction in which people and objects enter and exit between the car 3 and the elevator landing 4 through the car-side entrance 3a and the landing-side entrance 40 is defined as the "entrance / exit direction Y", and the direction in which the car 3 moves up and down in the hoistway 2 is defined as the "up / down direction Z". Also, the opening / closing direction X, the entrance / exit direction Y, and the up / down direction Z are orthogonal to each other. Since the car 3 moves up and down vertically, the up / down direction Z coincides with the vertical direction. Further, among the opening / closing direction X, the side where the landing door 42 and the car door 31 close is defined as the "door-closed side", and the opposite side is defined as the "door-open side".

[0018] In the elevator 1 of the present embodiment, it is important that there are provided a holder 7 for holding the door-closed preventing tool A and a connecting member 8. For the sake of explanation, before explaining the holder 7 and the connecting member 8, the basic configuration of the elevator 1 will be explained.

[0019] As shown in FIG. 1, the elevator 1 includes a hoistway 2 defined by the walls in the building so as to extend in the up / down direction Z, a car 3 that moves up and down in the hoistway 2, and an elevator landing 4 provided on a predetermined floor of the building. Note that a plurality of elevator landings 4 are provided in the up / down direction Z.

[0020] The car 3 includes a box-shaped car body 30 having a car-side entrance 3a which is an opening formed in the front surface, and a car door 31 that opens and closes the car-side entrance 3a. The car door 31 is configured to be driven to open and close by the driving force of a door driving mechanism 3b (specifically, a motor) provided on the car body 30. Therefore, the car door 31 is configured to close the car-side entrance 3a when the car 3 moves up and down in the hoistway 2, and to open and close the car-side entrance 3a when the car 3 arrives at the elevator landing 4. Note that the car door 31 of the present embodiment is a so-called center-open type (double-opening type) door.

[0021] As shown in FIG. 1, in the elevator landing 4, there are provided a landing side entrance 40 provided on the wall partitioning the elevator landing 4 and the hoistway 2, a landing side threshold 41 provided at the end on the hoistway 2 side, and a landing door 42 for opening and closing the landing side entrance 40. Note that the landing side entrance 40 is an opening having a size corresponding to the car side entrance 3a.

[0022] The landing side threshold 41 is for guiding the landing door 42 in the opening and closing direction X. As shown in FIG. 2, the landing side threshold 41 extends in the opening and closing direction X at the lower end of the landing side entrance 40. Note that the landing side threshold 41 is longer than the landing side entrance 40 in the opening and closing direction X. A guide groove 410 is formed in the landing side threshold 41 so as to extend in the opening and closing direction X. This guide groove 410 is formed so as to extend over the entire area of the landing side threshold 41 in the opening and closing direction X.

[0023] The landing door 42 is for opening and closing the landing side entrance 40. As shown in FIG. 2, the landing door 42 includes a door body 420 partitioning the elevator landing 4 and the hoistway 2, and a door drive unit 421 for driving the door body 420 in the opening and closing direction X. Note that the landing door 42 of the present embodiment is a center open type door including two door bodies 420, 420 having the same configuration.

[0024] The door body 420 is constituted by a plate-like member. The door body 420 includes a door panel 420a extending in the plane direction orthogonal to the entry and exit direction Y of the landing side entrance 40, and a closing side folded portion 420b and an opening side folded portion 420c provided at the edge of the door panel 420a on the closing side and the opening side, respectively. The door panel 420a of the present embodiment is a rectangular shape elongated in the hoisting direction Z. Also, as shown in FIG. 3, each of the closing side folded portion 420b and the opening side folded portion 420c (not numbered in FIG. 3) includes a first portion 420d extending from the edge of the door panel 420a to the back side of the door panel 420a, and a second portion 420e extending from the first portion 420d toward the opposite folded portions 420b, 420c.

[0025] As shown in FIG. 2, the door driving unit 421 includes a door rail 421a extending in the opening and closing direction X at an upper position above the landing side entrance 40 (specifically, the wall within the hoistway 2), and a door hanger 421b that can reciprocate in the opening and closing direction X along the door rail 421a with the door panel 420a suspended. The door hanger 421b is attached to the door rail 421a. In this embodiment, two door hangers 421b, 421b are provided. Also, the two door hangers 421b, 421b are configured to be interlocked on the door opening side and the door closing side. Thus, for example, when one door hanger 421b moves to the door closing side, the other door hanger 421b also moves to the door closing side. Furthermore, the door hanger 421b is configured to automatically move to the door closing side when no external force acts on it.

[0026] In FIG. 2, with the back surface of the door panel 420a arranged on the hoistway 2 side, the upper side of the door body 420 is suspended by the door hanger 421b. Also, the lower side of the door body 420 is fitted into the guide groove 410. In this way, the landing door 42 is arranged at the landing side threshold 41. Thus, by moving the door hanger 421b, the door body 420 can open and close the landing side entrance 40 by sliding.

[0027] The landing door 42 is provided with a locking device 5 for locking (locking) the landing door 42 in the closed state, and an unlocking device 6 capable of unlocking the lock by the locking device 5. In this embodiment, the locking device 5 and the unlocking device 6 are provided on one (the right side in FIG. 2) of the landing doors 42.

[0028] The locking device 5 has a first engaging member 50 provided on the door rail 421a and a second engaging member 51 provided on the door hanger 421b. The first engaging member 50 is arranged between the two door hangers 421b, 421b. This first engaging member 50 has an engaging piece 500 extending in the elevating direction Z.

[0029] As shown in Fig. 2, the second engaging member 51 is configured to be displaceable between an engaging position where it engages with the first engaging member 50 by rotating around the entry / exit direction Y and a releasing position where the engagement with the first engaging member 50 is released. Specifically, the second engaging member 51 includes a hook 510 provided on the door-closed side and a shaft portion 511 provided so as to extend downward. And in Fig. 2, the hook 510 abuts against the engaging piece 500 from the door-closed side, whereby the second engaging member 51 is engaged with the first engaging member 50. Therefore, due to the engagement between the first engaging member 50 and the second engaging member 51, the landing door 42 is locked in the door-closed state.

[0030] The unlocking device 6 is provided on the door main body 420. The unlocking device 6 of the present embodiment is a keyhole 6 that penetrates the door panel 420a. As shown in Fig. 2, this keyhole 6 is disposed above the center of the door panel 420a in the lifting direction Z, specifically, below the shaft portion 511. Also, the keyhole 6 is disposed between the center of the door panel 420a in the opening / closing direction X and the second portion 420e of the door-closed side folded portion 420b. Therefore, the keyhole 6 is disposed on the door-closed side of the landing door 42. A key (not numbered) owned by the operator is inserted into this keyhole 6. This key is a shaft-shaped member having a length that can be inserted into the keyhole. Also, the key is configured such that the tip in the insertion direction bends due to its own weight. Therefore, as shown in Fig. 2, when the key is inserted into the keyhole 6 and the tip bends due to its own weight and then the key is rotated, the tip of the key abuts against the shaft portion 511 and the second engaging member 51 moves. In this way, the engaged state between the first engaging member 50 and the second engaging member 51 is released and the lock of the landing door 42 is released.

[0031] The above is the description of the basic configuration of the elevator 1 of the present embodiment. For the sake of convenience of explanation, before explaining the holder 7 and the connecting member 8, the door-closed stopper A related to the holder 7 and the connecting member 8 will be explained. Then, the holder 7 and the connecting member 8 will be explained.

[0032] As described above, the door hanger 421b is configured to automatically move toward the door-closed side when no external force acts thereon. Therefore, when no external force acts, the landing door 42 closes the landing-side entrance / exit 40. On the other hand, when maintaining the elevator 1, it is necessary to keep the landing door 42 in the door-open state. Therefore, a door-closure prevention tool A that prevents the door closure caused by the landing door 42 moving toward the door-closed side is used. This door-closure prevention tool A is configured separately from the landing door 42. Further, the door-closure prevention tool A is temporarily used when preventing the door closure of the landing door 42.

[0033] As shown in FIG. 4, the door-closure prevention tool A of the present embodiment abuts on the landing door 42 (specifically, the first part 420d of the door-closed side folded-back part 420b) from the door-closed side in a state of being fitted in the guide groove 410, thereby preventing the door closure of the landing door 42. The door-closure prevention tool A is composed of a compressible elastic member (specifically, a short rubber hose). Specifically, the door-closure prevention tool A is compressible so as to reduce its diameter. The outer diameter of the door-closure prevention tool A in the compressed state is shorter than the width of the guide groove 410. Therefore, the door-closure prevention tool A is configured to be disposed in the guide groove 410 in the compressed state.

[0034] The holder 7 is for holding the door-closure prevention tool A. The holder 7 is provided on the landing door 42. In the present embodiment, the holder 7 is provided on the landing door 42 of each floor. As shown in FIGS. 2 and 3, the holder 7 includes a support part 70 configured to support the door-closure prevention tool A from below and a housing part 71 capable of housing the door-closure prevention tool A.

[0035] The support portion 70 is a member that extends in the entry / exit direction Y and the opening / closing direction X. The support portion 70 of the present embodiment is composed of a plate-shaped member (specifically, a rectangular plate-shaped member whose length in the opening / closing direction X is longer than the length in the entry / exit direction Y). Further, the support portion 70 is provided on the back surface of the door panel 420a. Therefore, the holder 7 is provided on the side of the hoistway 2 of the landing door 42. Furthermore, the length of the support portion 70 in the opening / closing direction X of the present embodiment is longer than the length of the door closing stopper A. Therefore, the support portion 70 of the present embodiment is configured to be able to support the entire length area of the door closing stopper A. On the other hand, the length of the support portion 70 in the entry / exit direction Y of the present embodiment is shorter than the outer diameter of the door closing stopper A.

[0036] The housing portion 71 is a member that surrounds the upper side of the support portion 70 in the opening / closing direction X and the entry / exit direction Y. As shown in FIG. 3, the housing portion 71 of the present embodiment is configured in a three-sided frame shape that surrounds from the door closing side, the door opening side, and the hoistway 2 side. As shown in FIG. 2, the housing portion 71 is disposed above the support portion 70. Therefore, the holder 7 of the present embodiment is configured in a box shape with an open upper side. The housing portion 71 includes an entry / exit wall portion 710 that faces the door panel 420a in the entry / exit direction Y, and a pair of opening / closing wall portions 711, 711.

[0037] The entry / exit wall portion 710 is a member that extends in the opening / closing direction X and the hoisting direction Z. The entry / exit wall portion 710 is provided upward from the edge on the hoistway 2 side of the support portion 70. As shown in FIGS. 2 and 3, the length of the entry / exit wall portion 710 in the opening / closing direction X of the present embodiment is substantially the same as the length in the opening / closing direction X of the support portion 70. Therefore, the length of the holder 7 in the opening / closing direction X is longer than the length of the door closing stopper A. Also, the length of the entry / exit wall portion 710 in the hoisting direction Z of the present embodiment is longer than the outer diameter of the door closing stopper A.

[0038] As shown in FIGS. 2 and 3, the pair of opening and closing wall portions 711, 711 are members that extend in the entry / exit direction Y and the elevating direction Z. The pair of opening and closing wall portions 711, 711 are provided upward from the door-opening side and door-closing side edges of the support portion 70 and face each other in the opening and closing direction X. The pair of opening and closing wall portions 711, 711 are connected to the entry / exit wall portion 710 and the door panel 420a in the entry / exit direction Y. Also, in the pair of opening and closing wall portions 711, 711 of the present embodiment, the length in the elevating direction Z is the same as that of the entry / exit wall portion 710. Therefore, the length of the accommodating portion 71 in the elevating direction Z of the present embodiment is longer than the outer diameter of the door-closing stopper A. Furthermore, in the pair of opening and closing wall portions 711, 711 of the present embodiment, the length in the entry / exit direction Y is the same as the length of the support portion 70 in the entry / exit direction Y.

[0039] As shown in FIG. 2, the retainer 7 of the present embodiment is disposed between the door-closing side folded-back portion 420b and the door-opening side folded-back portion 420c (specifically, their second parts 420e) in the opening and closing direction X. Specifically, the retainer 7 is disposed between the center of the door panel 420a in the opening and closing direction X and the second part 420e of the door-closing side folded-back portion 420b. Therefore, the retainer 7 is disposed on the door-closing side of the landing door 42. Also, the retainer 7 is disposed at a position away from the rotation locus of the key that rotates while being inserted into the keyhole 6 which is the unlocking device 6. Specifically, the retainer 7 of the present embodiment is disposed below the center of the door panel 420a in the elevating direction Z.

[0040] Furthermore, as shown in FIG. 3, the retainer 7 of the present embodiment is shorter than the door-closing side folded-back portion 420b in the entry / exit direction Y. Therefore, the retainer 7 is disposed between the second part 420e and the door panel 420a in the entry / exit direction Y (in other words, in the thickness direction of the landing door 42).

[0041] As shown in Fig. 3, the holder 7 holds the door closing stopper A. Here, in the present embodiment, the pair of opening / closing wall portions 711, 711 has a length in the access direction Y shorter than the outer diameter of the door closing stopper A. Therefore, in the present embodiment, the door closing stopper A in a state where its length is along the opening / closing direction X and its outer diameter is compressed is held by the door panel 420a and the access wall portion 710, and thus the door closing stopper A is accommodated in the accommodating portion 71. Therefore, the holder 7 of the present embodiment holds the door closing stopper A in a state where its outer diameter is compressed.

[0042] As shown in Fig. 2, in the present embodiment, when the door closing stopper A is held by the holder 7, a part of the door closing stopper A is disposed above the accommodating portion 71. In this state, the door closing stopper A is separated upward from the support portion 70.

[0043] The connecting member 8 connects the door closing stopper A and the holder 7. As shown in Figs. 2 and 3, the connecting member 8 of the present embodiment is configured as a string-like member. One end of the connecting member 8 is fixed to the door closing stopper A, and the other end is tied and fixed to the holder 7 (in the present embodiment, the opening / closing wall portion 711 on the door closing side). The connecting member 8 is set to a length that allows the door closing stopper A held by the holder 7 to move to the door closing side relative to the door closing side folding portion 420b. Therefore, the door closing stopper A can be disposed in the guide groove 410 on the door closing side relative to the door closing side folding portion 420b.

[0044] In the elevator 1 configured as described above, the closing of the door is prevented as follows. The prevention of the door closing is performed, for example, before maintenance work for inspecting the elevator 1.

[0045] First, as shown in Fig. 2, after the operator inserts the key into the keyhole 6, the key is rotated so that the tip of the key abuts against the shaft portion 511. As a result, the shaft portion 511 is pushed by the tip of the key around the access direction Y, and the second engaging member 51 rotates around the access direction Y. Therefore, the engagement between the first engaging member 50 and the second engaging member 51 is released, and the lock of the landing door 42 is released. Subsequently, the operator moves the door body 420 to the door opening side to open the landing door 42.

[0046] Next, with the landing door 42 open, the operator reaches around to the back side of the door panel 420a and removes the door closing stopper A from the holder 7. Note that when the door closing stopper A is removed from the holder 7, it returns from the compressed state to its original state. Then, as shown in FIG. 4, the operator places the door closing stopper A in the guide groove 410 while compressing its outer diameter again. Thus, the landing door 42 that automatically moves toward the door closing side (specifically, the first part 420d of the door closing side folding part 420b) comes into contact with the door closing stopper A. At this time, the friction between the door closing stopper A and the inside of the guide groove 410 prevents the landing door 42 from closing.

[0047] As described above, according to the present embodiment, since the holder 7 is provided on the hoistway 2 side of the landing door 42, the door closing stopper A can be held in a place where it is not visible to the users of the elevator 1. Specifically, in the present embodiment, the door closing stopper A in a state where its outer diameter is compressed is accommodated in the accommodating part 71 while being held by the door panel 420a and the entrance / exit wall part 710. Therefore, for example, it is possible to prevent the door closing stopper A from falling from the accommodating part 71 into the hoistway 2 due to vibrations transmitted from the landing door 42.

[0048] Also, in the holder 7 of the present embodiment, the length in the opening / closing direction X is longer than the length of the door closing stopper A. Therefore, the door closing stopper A can be held by the holder 7 with the length of the door closing stopper A along the opening / closing direction X.

[0049] Also, in the present embodiment, when the door closing stopper A is held by the holder 7, a part of the door closing stopper A is disposed above the accommodating part 71. Therefore, it is easy to remove the door closing stopper A from the holder 7.

[0050] Also, in the present embodiment, the holder 7 includes a support part 70 configured to be able to support the door closing stopper A from below. Therefore, for example, even if the door closing stopper A held by the door panel 420a and the entrance / exit wall part 710 moves downward, the support part 70 can support the door closing stopper A. Therefore, it is possible to prevent the door closing stopper A from falling into the hoistway 2.

[0051] In addition, in the present embodiment, the door closing stopper A is held by the holder 7. Therefore, even if the operator forgets the door closing stopper A, the operator can use the door closing stopper A held by the holder 7 to prevent the landing door 42 from closing. Furthermore, the operator does not need to bring the door closing stopper A to the work site during maintenance work, and the burden during work can be reduced. In addition, in the present embodiment, the holder 7 is provided on the landing door 42 of each floor. Therefore, the work burden of the operator can be reduced regardless of which floor the maintenance work is carried out on.

[0052] In addition, in the present embodiment, the holder 7 is disposed between the center of the door panel 420a in the opening and closing direction X and the second part 420e of the door closing side folded-back part 420b. Therefore, the holder 7 is disposed on the door closing side of the landing door 42. Thus, the distance between the operator and the holder 7 can be reduced, and when the operator reaches around to the back side of the door panel 420a, it is easy to take out the door closing stopper A from the holder 7.

[0053] In addition, in the present embodiment, the holder 7 is disposed below the center of the door panel 420a in the elevating direction Z. Therefore, the distance between the holder 7 and the guide groove 410 can be reduced, and the distance for moving the door closing stopper A can be shortened. Thus, the burden on the operator associated with the movement of the door closing stopper A can be reduced.

[0054] In addition, in the present embodiment, the holder 7 is shorter than the door closing folded-back part 420b and the door opening side folded-back part 420c in the entering and exiting direction Y. Therefore, it can be prevented that the holder 7 interferes with the opening and closing of the landing door 42. Also, it can be prevented that the holder 7 interferes with the car 3.

[0055] In addition, the holder 7 of the present embodiment is configured in a box shape with an upper opening. Also, the holder 7 is provided on the side of the elevating path 2 of the landing door 42. Thus, when the operator reaches around to the back side of the door panel 420a and touches the holder 7, the holding position of the door closing stopper A can be grasped.

[0056] In addition, in the present embodiment, the connecting member 8 connects the door closing stopper A and the holder 7. Therefore, it is possible to prevent the door closing stopper A from falling into the lifting path 2. Further, the other end of the connecting member 8 of the present embodiment is connected to the opening and closing wall portion 711 on the door closing side. Therefore, the connecting member 8 is easily accessible. Thus, even if the door closing stopper A falls into the lifting path 2, the door closing stopper A can be taken out of the lifting path 2 by grasping the connecting member 8 by hand.

[0057] In addition, the length of the accommodating portion 71 in the present embodiment in the lifting direction Z is longer than the outer diameter of the door closing stopper A. Therefore, the entire area of the door closing stopper A can also be accommodated within the accommodating portion 71. Thus, by accommodating the entire area of the door closing stopper A within the accommodating portion 71, the door closing stopper A can be held more stably by the holder 7.

[0058] In addition, in the present embodiment, the keyhole 6 which is the unlocking device 6 is disposed above the center of the door panel 420a in the lifting direction Z, and the holder 7 is disposed at a position away from the rotation locus of the key that rotates in a state of being inserted through the keyhole 6 which is the unlocking device 6. Therefore, it is possible to prevent the holder 7 from interfering with the unlocking of the lock by the unlocking device 6. Here, the holder 7 of the present embodiment is disposed below the center of the door panel 420a in the lifting direction Z. Therefore, it is also possible to prevent the unlocking device 6 from obstructing the removal when the operator takes out the door closing stopper A from the holder 7.

[0059] In addition, in the present embodiment, the keyhole 6 and the holder 7 are disposed between the center of the door panel 420a in the opening and closing direction X and the second portion 420e of the door closing side folded-back portion 420b. Therefore, when preventing the door from closing, the operator only needs to perform the operation on the door closing side rather than the center of the door panel 420a in the opening and closing direction X, so the work burden on the operator can be reduced.

[0060] The present invention is not limited to the above-described embodiment, and can be appropriately modified without changing the gist.

[0061] In the above-described embodiment, the landing door 42 was a center-opening type door. However, the present invention is not limited to this, and the landing door 42 may be a single-opening type door.

[0062] In the above-described embodiment, the support portion 70 was a plate-like member whose length in the opening / closing direction X was longer than the length in the entering / exiting direction Y. However, the present invention is not limited to this, and for example, the support portion 70 may have the same length in the opening / closing direction X as the length in the entering / exiting direction Y. Further, the support portion 70 may have a shape other than a rectangular shape, for example, a triangular shape or a semi-circular shape. In this case, the shape of the accommodating portion 71 may be changed according to the shape of the support portion 70.

[0063] Also, in the above-described embodiment, the accommodating portion 71 was longer in the elevating direction Z than the outer diameter of the door closing stopper A. However, the present invention is not limited to this, and the length of the accommodating portion 71 in the elevating direction Z may be made shorter than the outer diameter of the door closing stopper A. Thereby, for example, while supporting the door closing stopper A by the support portion 70, a part of the door closing stopper A can be disposed above the accommodating portion 71. Therefore, the door closing stopper A can be supported by the support portion 70, and the door closing stopper A can also be easily taken out from the accommodating portion 71.

[0064] Also, in the above-described embodiment, the support portion 70 and the pair of opening / closing wall portions 711, 711 were shorter in the entering / exiting direction Y than the outer diameter of the door closing stopper A. However, the present invention is not limited to this, and the support portion 70 and the pair of opening / closing wall portions 711, 711 may be longer in the entering / exiting direction Y than the outer diameter of the door closing stopper A. Thereby, a margin can be provided in the entering / exiting direction Y of the support portion 70 and the accommodating portion 71, so that it is easier to take in and out the door closing stopper A.

[0065] Also, in the above-described embodiment, the holder 7 was disposed below the center of the door panel 420a in the elevating direction Z. However, the present invention is not limited to this, and for example, the holder 7 may be disposed at the center of the door panel 420a in the elevating direction Z or above the center. Thereby, an operator can take out the door closing stopper A from the holder 7 without bending down, so it is easy to take out.

[0066] Here, when the holder 7 is disposed above the center of the door panel 420a in the lifting direction Z, since the positions of the unlocking device 6 and the holder 7 can be brought closer, when preventing the door from closing, the operator can unlock the lock by the unlocking device 6 and remove the door closing stopper A from the holder 7 without significantly changing the posture.

[0067] Also, in the above embodiment, the case where the holder 7 holds only the door closing stopper A has been described. However, the present invention is not limited to this. For example, the holder 7 may be configured to hold something other than the door closing stopper A. For example, tools necessary for maintenance work may be stored in the storage portion 71 and supported by the support portion 70. Thereby, the burden on the operator during work can be further reduced.

[0068] Also, in the above embodiment, the case where the holder 7 includes the support portion 70 and the storage portion 71 has been described. However, the present invention is not limited to this. For example, the holder 7 may include only the support portion 70. In this case, the support portion 70 supports the door closing stopper A, so that the holder 7 can hold the door closing stopper A. In this case, it is conceivable that one end of the connecting member 8 is connected to the support portion 70. Also, the holder 7 may include only the storage portion 71. Thereby, the holder 7 can hold the door closing stopper A by accommodating the door closing stopper A in a state of being compressed in the entry / exit direction Y by the door panel 420a and the storage portion 71.

[0069] Also, for example, the holder 7 may be configured as a container with an open upper side and provided on the back surface of the door panel 420a by being adhesively fixed.

[0070] Also, the holder 7 may hold the door closing stopper A by hooking. In this case, for example, the door closing stopper A is configured in a hook shape, and the support portion 70 is configured as a U-shaped member. And by hooking the door closing stopper A on the support portion 70, the holder 7 may be configured to hold the door closing stopper A.

[0071] Alternatively, for example, a magnet may be provided on the door closing stopper A and held by attaching it to the back surface of the door panel 420a with magnetic force. In this case, the holder 7 is a region made of a magnetic material in the door panel 420a. Further, in this case, a member having magnetism may be attached to the back surface of the door panel 420a and used as the holder 7.

[0072] In the above embodiment, the connecting member 8 connects the door closing stopper A and the holder 7. However, it is not necessary to provide the connecting member 8 and connect the door closing stopper A and the holder 7. Thereby, the operator can flexibly set the arrangement of the door closing stopper A with respect to the guide groove 410. Further, the connecting member 8 may connect, for example, the door closing stopper A and the door panel 420a. That is, the connecting member 8 only needs to connect the door closing stopper A and the periphery of the landing door 42 so that the door closing stopper A does not separate from the landing door 42 or the holder 7.

Explanation of Reference Numerals

[0073] 1: Elevator, 2: Hoistway, 3: Car, 30: Car body, 31: Car door, 3a: Car side entrance, 3b: Door drive mechanism, 4: Elevator landing, 40: Landing side entrance, 41: Landing sill, 410: Guide groove, 42: Landing door, 420: Door body, 420a: Door panel, 420b: Door closing side folding part, 420c: Door opening side folding part, 420d: First part, 420e: Second part, 421: Door drive part, 421a: Door rail, 421b: Door hanger, 5: Locking device, 50: First engaging member, 500: Engaging piece, 51: Second engaging member, 510: Hook, 6: Unlocking device, 7: Holder, 70: Support part, 71: Accommodating part, 710: Entrance / exit wall part, 711: Opening / closing wall part, 8: Connecting member, A: Door closing stopper, X: Opening / closing direction, Y: Entrance / exit direction, Z: Lifting direction

Claims

1. A door-closing prevention device that is temporarily used to prevent the closing of a landing door that opens and closes between an elevator landing and a hoistway by sliding, the door-closing prevention device including a holder that is provided separately from the landing door and holds the door-closing prevention device in a state in which the landing door is not blocked from closing, The retainer is provided on the elevator shaft side of the landing door.

2. The elevator according to claim 1 , wherein the retainer is disposed on a door-closing side of the landing door.

3. A door-closing prevention device used temporarily to prevent the closing of a landing door that opens and closes between an elevator landing and a hoistway by sliding, comprising a holder that holds the door-closing prevention device provided separately from the landing door, The door closing prevention device is composed of a compressible elastic member, The retainer is provided on the elevator shaft side of the landing door and holds the door closing prevention device in a compressed state.

4. 4. The elevator according to claim 1, wherein the door closing stopper and the retainer are connected by a connecting member.

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