JP2013018642A - Hall door device for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hall door device for an elevator preventing such defects that a door is not opened due to tangling of a rope, the door is not closed automatically, or the door is not opened or closed stably, by a simple structure even when the rope of a weight closer comes off from a pulley.SOLUTION: In the hall door device for the elevator opening and closing an opening formed between an elevator hall and a hoist way of a building for passengers getting on/off, door panels 4R 4L are led and supported in the opening/closing direction by a door rail 5 arranged along an upper side of the opening. The pulley 17 is arranged on an extended line of the door panel in the opening/closing direction. In the pulley 17, one end is connected to the door panel 4R, and a weight 16 for opening/closing the door is connected to the other end thereof. A middle part of the rope 15 is wound around the pulley 17 in a manner of being movable in the longitudinal direction. Further, first and second guide brackets 18a, 18b are respectively arranged on a lateral part and a longitudinal part of the rope 15 near the pulley 17, and the rope 15 is loosely fitted into a guide hole 19 thereof.

Description

  Embodiments of the present invention relate to an elevator hold-a device that opens and closes an opening for getting on and off between an elevator hall and a hoistway of a building.

  On the wall surface of the elevator hall (also referred to as a landing), an opening leading to the hoistway inside the wall surface is provided as an entrance / exit, and a hold door device is installed at the entrance / exit. The hold door device opens and closes the door panel when a car moving up and down in the hoistway stops on the elevator landing and allows passengers to get on and off the car.

  As this type of hold door device, a sliding door type door panel is arranged inside a frame member, and the door panel is moved to open and close its doorway.

  The elevator holder device engages with a car door device that opens and closes the entrance of the car when the car stops in the elevator hall and stops, and opens together with the car door device. When the door is closed, it closes together with the car door device, but the door panel of the hold door device is provided with a door closer that applies a self-closing force to the door panel, and the door panel is configured to securely close the door panel. .

  As this type of door closer, a method using a weight has been proposed (see, for example, Patent Document 1). This system uses a rope with one end connected to the door panel and a weight attached to the other end. The rope is wrapped around a pulley provided on the extension line of the door panel in the door closing direction, and then the weight is It is lowered downward, and the weight of the weight gives the door panel an acting force in the door closing direction to make it self-close.

JP 2005-320098 A

  Such a hold-a device operates normally without any problem. For example, the weight closer rope may come off the pulley due to deformation or vibration caused by a fire. In such a case, since the weight attached to the tip of the rope falls downward due to gravity, the rope is also removed from the predetermined path position, entangled with other equipment, etc., the door does not open, and the door closes automatically. The door opening / closing operation became unstable.

  The problem to be solved by the present invention is that even if the weight closer rope is detached from the pulley with a simple configuration, the rope gets tangled and the door does not open, the door does not self-close, and the door opening / closing operation becomes unstable. An object of the present invention is to provide an elevator holder device capable of preventing problems.

  An elevator holder device according to an embodiment of the present invention is an elevator holder device that opens and closes a boarding / alighting opening provided between an elevator hall and a hoistway of a building. A door rail that guides and supports the door panel that opens and closes the opening in the opening and closing direction, a pulley disposed on an extension line in the closing direction of the door panel, one end is connected to the door panel, and an intermediate portion is long. A rope that is wound around the pulley in a state that is movable in the vertical direction, is turned from the horizontal direction to the vertical direction by the pulley, and is connected to a weight for door closing operation at the other end. And a first guide bracket and a second guide bracket each having a guide hole loosely fitted to the rope. To.

1 is a front view of an elevator holder device according to an embodiment of the present invention. It is a figure which expands and shows the relationship between the pulley used for one embodiment of this invention, a rope, and a guide bracket. It is a perspective view which shows the guide bracket used for one embodiment of this invention. It is a perspective view which shows the guide bracket used for other embodiment of this invention. It is a perspective view which shows the guide bracket used for further another embodiment of this invention.

  Hereinafter, an elevator holder device according to an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows an elevator holder device according to this embodiment. This hold door device opens and closes an opening for getting on and off between an elevator hall and a hoistway of a building (not shown). The opening is provided with a frame member made up of a header case 1 installed horizontally in the upper part of the opening and a pair of left and right back angles 2 erected on both sides thereof. Inside the frame member, a pair of door panels 4R, 4L is incorporated so as to be movable in the left-right direction.

  That is, the hold door device is a double-open door device, and the door rail 5 is horizontally installed on the header case 1. The door rail 5 is provided along the upper side of the opening, and guides and supports a pair of left and right door panels 4R and 4L that open and close the opening in the opening and closing direction (the left and right direction in the drawing). The door panels 4R and 4L are engaged with the hanger roller 3a of the hanger 3 provided on the top of the door panel 4 so as to be able to roll on the door rail 5, and the hanger roller 3a rolls on the door rail 5 to open and close as described above. Move along.

  Although not shown, a sill is provided horizontally below the pair of left and right back angles 2, and the sill guides the movement of the lower ends of the door panels 4R and 4L.

  Next, a door closer that applies a self-closing force to the door panels 4R and 4L will be described. The left end of the header case 1 shown in FIG. 1, that is, the closing direction of the door panel 4R on the right side in the figure, that is, the moving direction to the left side in the figure (however, FIG. 1 shows the door closed state, to the left As shown in FIG. 2, the guide pulley 17 is installed in a rotatable state on the extended line (the movement of the motor is stopped). An intermediate portion of the rope 15 is wound around the pulley 17 so as to be movable in the length direction. The pulley 15 changes the length of the rope 15 from the horizontal direction to the vertical direction as shown in the figure. As shown in FIG. 1, one end (right end in the figure) of the rope 15 is connected to the door panel 4R on the right side in the figure, and a weight 16 for door closing operation is connected to the other end.

  That is, the rope 15 constituting the door closer is pulled out to the opposite side separating the other (left side in the drawing) door panel 4L, wound around the pulley 17 located on the opposite side, and the end portion led out from the pulley 17 The weight 16 is connected to the lower end of the back angle 2 along the left side of the figure.

  Further, near the pulley 17, a first guide bracket 18 a disposed in a lateral portion of the rope 15 wound around the pulley 17 and a second guide disposed in a longitudinal portion of the rope 15. A bracket 18b is provided. As shown in FIG. 3, each of the first and second guide brackets 18a and 18b has a guide hole 19 that guides the rope 15 so as to be able to advance and retract in a loosely fitted state. In addition to this, a third guide bracket 18c may be further provided in the lateral portion of the rope 15 at a position farther from the pulley 17 than the first guide bracket 18a. The third guide bracket 18 c also has a guide hole 19 for the rope 15.

  In the above configuration, when a car (not shown) reaches the elevator hall and stops, the car door device that opens and closes the entrance / exit of the car opens. At this time, the hold door device is engaged with the operating portion of the car door device, and the pair of left and right door panels 4R and 4L are opened to the left and right in conjunction with the car door device, from the door closed state to the door open state. Become. When the door panel 4 is opened, the rope 15 whose one end is connected to the right door panel 4R in the drawing is pulled rightward in the drawing, and the rope 15 wound around the pulley 17 is a weight connected to the other end. Pull 16 up. For this reason, a force in the door closing direction (left side in the drawing) is always applied to the door panel 4R by the weight 16.

  In the illustrated example, the pair of left and right door panels 4R and 4L are configured such that if one door panel 4R is opened (or closed) by an interlocking mechanism (not shown), the other door panel 4L is also opened (or closed). Has been. Accordingly, the door closer including the rope 15, the pulley 17, the weight 16, and the like is provided only on the right door panel 4R in the drawing. However, when the door panels 4R and 4L are heavy, the door closer composed of the rope 15, the pulley 17, the weight 16, and the like is configured similarly to the 4R side with respect to the other door panel 4L.

  Even when the door is closed from the door open state, the door panels 4R and 4L are closed together with the car door device, but the hold door device is provided with the door closer described above that applies a self-closing force to the door panels 4R and 4L. The door closer 4R and 4L operate so as to be surely closed. That is, the weight load of the weight 16 is applied to the door panel 4R via the rope 15, and thereby, the self-closing force acting in the door closing direction sufficiently acts on the door panels 4R and 4L interlocking with each other, and the closing operation when the door is closed is performed. Certainly achieved.

  Further, the weight 16 is lowered along the back angle 2, so that when the door panels 4R and 4L are opened, they do not interfere with the movement of the door panels 4R and 4L and do not collide with each other so that the door closer can be smoothly moved. Can be operated.

  As described above, in a normal state, the hold door device operates smoothly, and the pair of door panels 4R and 4L reliably perform the door opening / closing operation. However, when a disaster such as a fire occurs, the rope 15 may come off the pulley 17 due to deformation or vibration of the pulley 17 associated therewith.

  In this embodiment, the first and second brackets 18a and 18b are attached to the inlet side and the outlet side of the pulley 17, and the moving direction of the rope 15 is guided by the guide holes 19, so that vibration is generated in a disaster or the like. Even when the pulley 17 is added or the pulley 17 is deformed, the rope 15 is hardly detached from the pulley 17. Even if the rope 15 is disengaged from the pulley 17, the rope 15 is held in the guide holes 19 of the first and second brackets 18 a and 18 b provided on the inlet side and the outlet side of the pulley 17. Therefore, the rope 15 does not get entangled with other mechanism portions as in the prior art. For this reason, it is possible to prevent problems such as the door not opening, the door not self-closing, and the door opening / closing operation becoming unstable due to the entanglement of the rope 15.

  In other words, the rope 15 and the guide holes 19 of the brackets 18a and 18b are not in contact with each other normally. However, even if the rope 15 is detached from the pulley 17 due to deformation or vibration during a fire, the rope 15 Since they are held in the guide holes 19 of 18a and 18b, they will not fall out of them, so that it is possible to prevent such a situation that the above-mentioned holder cannot be closed by itself or that the control of opening and closing the holder becomes unstable. It becomes possible.

  Further, by arranging the third bracket 18c also in the longitudinal direction of the header case 1, when the rope 15 is detached from the pulley 17, the lateral portion of the rope 15 does not hang down, so that it can be used as an internal product such as the hanger 3. Tangle can be prevented.

  FIG. 4 shows an embodiment in which a sliding resin material (for example, Teflon (registered trademark)) 20 is attached to the inner periphery of the guide hole 19 of the guide bracket 18. As described above, the rope 15 and the guide hole 19 of the bracket 18 are not in contact with each other at normal times, but the rope 15 may come into contact with the guide hole 19 of the bracket 18 due to vibration during movement. When such contact occurs, the rope may be cut by rubbing between the rope 15 and the bracket 18 due to long-term use even during normal operation. In addition, when the rope 15 is detached from the pulley 17 due to deformation or vibration during a fire, the rope 15 may be caught in the guide hole 19 of the bracket 18 and the rope 15 may be cut due to wear.

  Therefore, if the resin material 20 having sliding property is attached to the inner periphery of the guide hole 19 as in this embodiment, the rope 15 may contact the inner periphery of the guide hole 19 or be caught. The rope 15 can be effectively prevented from being cut due to wear.

  FIG. 5 shows an embodiment in which the guide bracket 18 can be divided vertically with the guide hole 19 as the center. If comprised in this way, the rope 15 can be easily removed from the bracket 18.

  Generally, there is a case where it is desired to remove the rope 15 from the bracket 18 at the time of on-site maintenance and inspection work or adjustment work. In such a case, as shown in FIGS. 3 and 4, when the rope 15 is passed through the guide hole 19 of the guide bracket 18, in order to remove the rope 15 from the guide bracket 18, one end of the rope 15 is connected to the door panel 14R, Alternatively, it must be removed from the weight 16 and a large work is required.

  On the other hand, when the guide bracket 18 can be divided vertically with the guide hole 19 as the center, the rope 15 can be easily removed by dividing the guide bracket 18 as shown in FIG.

  As described above, even when the weight closer rope 15 is detached from the pulley 17 due to deformation or vibration during a fire, the rope 15 becomes tangled and the door does not open as in the conventional case, and the door loses its self-closing force. However, the problem that the door does not close and the door opening / closing operation becomes unstable does not occur, and a stable door opening / closing operation can be obtained.

  Although several embodiments of the present invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Header case 2 ... Back angle 3 ... Hanger 4R, 4L ... Door panel 5 ... Door rail 15 ... Rope 16 ... Weight 17 ... Pulley 18a, 18b, 18c ... Guide bracket 19 ... Guide hole 20 ... Sliding resin material

Claims (4)

An elevator hold door device that opens and closes an opening for getting on and off between an elevator hall and a hoistway of a building,
A door rail that is provided along the upper side of the opening and that guides and supports a door panel that opens and closes the opening in the opening and closing direction;
A pulley disposed on an extension in the closing direction of the door panel;
One end is connected to the door panel, and the middle part is wound around the pulley in a state of being movable in the length direction. The pulley is turned from the horizontal direction to the vertical direction, and the other end is used for door closing operation. A rope coupled with weights;
A first guide bracket and a second guide bracket which are respectively disposed in a lateral portion and a longitudinal portion of the rope near the pulley and have guide holes which are loosely fitted to the rope;
An elevator hold-a device characterized by comprising:   The third guide bracket having a guide hole of the rope, which is disposed at a position farther from the pulley than the first guide bracket in the lateral portion of the rope. The elevator hold-a device according to claim 1.   The elevator holder device according to claim 1 or 2, wherein a sliding resin material is attached to an inner periphery of the guide hole of the guide bracket.   4. The elevator holder device according to claim 1, wherein the guide bracket can be divided around the guide hole. 5.

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