JP2007320696A - Elevator door pulling-in preventive device, and elevator device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve a structure preventing pulling into a space formed between a wall forming an entrance of an elevator car and an opening/closing door. <P>SOLUTION: A pulling-in preventive device in an elevator door comprises blocks 17 provided on four corners of a car door 11, an interlocking rope 27 stretched over the blocks 17 with their both ends being fixed by a sheet fixing member 16 fixed to a wall face of a car 7, and a sheet 15 for winding the periphery of the car door 11 in a suspended state by an interlocking rope. When the car door 11 is opened, the sheet 15 relatively slides to the car door 11. In this condition, the sheet 15 located at a space part formed of the car door 11 and the car 7 is not moved. On the other hand, when the car door 11 is closed, the sheet 15 relatively slides with respect to the car door 11. In this condition, the sheet 15 located at the space part formed of the car door 11 and the car 7 is not moved. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a structure for preventing pull-in into a gap formed between an elevator door and a wall.

  FIG. 7 is a schematic view when a car of a conventional general elevator apparatus is viewed from above. The elevator car 7 is provided with an entrance 8 on the landing side (above the drawing), and a sliding door type car door 9 that opens and closes the entrance 8 in the direction of arrow C. In order to avoid contact with the car 7 during the opening / closing operation of the car door 9, a slight gap 10 is formed between the car door 9 and the car 7.

  However, if the car door 9 is touched during the opening operation of the car door 9, there is a possibility that some touched obstacle, such as clothes, may be drawn into the gap 10.

  Thus, an apparatus for preventing the obstacle from being drawn into the gap 10 has been proposed.

  For example, in Patent Document 1, as shown in FIG. 8, a three-sided frame 2 constituting a landing doorway frame, a door 1 provided on one side of the three-way frame 2 for opening and closing the landing doorway, and an edge of the three-way frame 2 And a winding device 5 having a built-in spring that winds up a sheet 6 that covers the gap between the three-way frame 2 and the door 1. 9 and 10 are cross-sectional views of the vicinity of the entrance / exit in FIG. 8 when viewed from above. FIG. 9 shows the door 1 in a closed state, and FIG. 10 shows the door 1 in an open state. ing. As apparent from FIGS. 9 and 10, since the space between the door 1 and the three-way frame 2 is always covered by the seat 6, it is possible to prevent the obstacle from being drawn.

JP 2004-217355 A

  However, in this prior art, since the sheet is stretched by the elastic force of the spring of the winding device, if the pressing force when the obstacle is pressed against the sheet exceeds the elastic force of the spring, the obstacle is There was a possibility of being pulled into the gap between the door 1 and the three-way frame 2 together with the sheet. That is, it cannot be said that the pull-in prevention structure as in the prior art can always prevent the pull-in.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to improve a structure for preventing a pull-in to a gap formed between a wall forming an entrance / exit of an elevator car and an opening / closing door. .

  In order to achieve the above object, the apparatus for preventing pull-in to the elevator door according to the present invention is substantially the same as or higher than the height of the door that automatically opens and closes by the sliding door method along the wall surface forming the entrance / exit of the elevator car. A sheet having a width greater than or equal to the width of the door, a sheet fixing means for fixing the sheet to the wall surface in a state where the sheet is stretched around the door, and the sheet according to opening and closing of the door. And a sheet attaching means for attaching the sheet to the door so as to be slidable on the surface of the door in the opening and closing direction.

  Further, a deformation detection means for detecting deformation of the seat in the door direction during the opening and closing operation of the door, and a means for reversing the door when the deformation detection means detects the deformation of the seat. It is what you have.

  Further, the seat attaching means is installed in a state where it is installed in a state of being wound around the pair of pulleys and the pair of pulleys attached to the door so as to be positioned in the vicinity of the upper corner of the door. And a pair of interlocking ropes fixed to the seat fixing means located on substantially the same horizontal plane as both ends of the pair of pulleys. The seat is suspended by connecting its upper side to the interlocking rope. By being connected in this state, it is wound around the door and relatively slides on the surface of the door according to the opening and closing of the door.

  The elevator apparatus according to the present invention includes the above-described apparatus for preventing pull-in to any elevator door.

  According to the present invention, the seat is provided so as to be wound around the door that opens and closes along the wall surface, and both ends of the sheet are fixed to the wall surface. The sheet portion located in the gap formed between them does not move in the direction of drawing into the gap. Thereby, it is possible to prevent an obstacle or the like from being drawn into the gap by the opening / closing operation of the door.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic plan view of a part of an elevator apparatus using an embodiment of the pull-in prevention apparatus according to the present invention, specifically, when the vicinity of an entrance to an elevator car is viewed from above. FIG. 1 is a schematic plan view showing a state in which the pair of car doors 9 are closed, whereas FIG. 2 is an open state. The configuration on the landing side is omitted. 3 is a plan view showing in detail the structure in the vicinity of the car door 9 when the car door 9 is open, FIG. 4 is a partially enlarged view of the seat, and FIG. 5 is a cross-sectional view taken along line AA in FIG. 6 and 6 are cross-sectional views taken along the line BB in FIG. Hereinafter, the structure of the present embodiment will be described with reference to these drawings. First, the overall structure of the present embodiment will be described with reference to FIGS.

  FIG. 1 shows a state where the pair of car doors 11 and the pair of landing doors 12 face each other because the car 7 is stopped on a certain floor. The landing door 12 is a sliding door type door that automatically opens and closes the entrance of the landing along the landing wall 13, and the car door 11 is a sliding door type door that automatically opens and closes the entrance of the car 7 along the car 7. The entrance / exit of the car 7 is formed between a pair of car uprights 14. Each of the pair of car doors 11 is wound by a synthetic resin material sheet 15 having a width that is substantially the same as or higher than the height of the car door 11 (in this embodiment, higher than the height), and the inner side of the car door 11 having an uneven shape. Has been. Since the pull-in prevention devices having the same structure are attached to the pair of car doors 11, the following description will focus on one. The pair of seat fixing members 16 are fixed to the wall surface in the vicinity of the car upright column 14 at positions separated from each other by the height of the car door 11 or more. Each end of the upper side of the seat 15 and each end of the lower side are fixed by a pair of sheet fixing members 16 so as to be held in a stretched state around the car door 11. As a result, the seat 15 can cover the car door 11.

  In the present embodiment, the seat 15 is attached to the car 7 while being stretched on the car door 11, and the sheet 15 can slide on the surface of the car door 11 in the opening / closing direction in accordance with the opening / closing of the car door 11. It is necessary to attach to. Hereinafter, the attachment structure of the seat 15 to the car door 11 and the car 7 will be described with reference to FIGS.

  First, pulleys 17 are arranged in the vicinity of the squares of the car doors 11, and each pulley 17 is connected to the car door 11 by a connection fitting 18 and is rotatably attached by a bolt 19. The connecting fitting 18 is fixed to the car door 11 with a bolt 20. As a result, each pulley 17 moves together with the car door 11.

  The sheet fixing member 16 includes a mounting bracket 21 and a bolt 22. The mounting bracket 21 is disposed at a position sandwiched from the height direction of the car door 11, and is fixed to the wall surface in the vicinity of the upright column 14 by the bolt 22.

  And as shown in FIG. 4, the recessed part 23 and the convex part 24 are formed in the sheet | seat 15 at the inner surface. A portion where the convex portion 24 is formed becomes thicker than a portion where the concave portion 23 is formed, and a thin rod-shaped reinforcing bar 25 is embedded in the portion where the convex portion 24 is formed. Further, at both ends of the reinforcing bar, connecting portions 26 formed by being bent toward the pulley 17 are provided and are tightly bound to corresponding interlocking ropes 27. The interlocking rope 27 is disposed on substantially the same plane as the pair of pulleys 17 and the mounting bracket 21 that are respectively disposed on the upper end side and the lower end side of the car door 11, and both ends thereof are connected by the interlocking rope fixing nuts 28. It is fixed to the corresponding mounting bracket 21. Accordingly, each interlocking rope 27 is wound from the mounting bracket 21 to the mounting bracket 21 via the two pulleys 17. As described above, the connecting portion 26 of the reinforcing bar 25 is configured to be fastened to the interlocking rope 27 above and below the car door 11, so that the car door 11 can be attached to the seat 15. Will be covered by.

  As is clear from FIGS. 1 to 3 and the like, in the present embodiment, the entire periphery of the car door 11 is not covered with the seat 15. This is because the portion that does not cover the car door 11 is always in a hidden position when using the elevator by the landing door 12 or the like, in other words, the position that the elevator user cannot touch, so there is no need to provide the seat 15. is there.

  A micro switch 29 is provided on the surface of the car door 11 that faces the other car door 11. The micro switch 29 is a means for detecting contact with the seat 15. When the elevator is used, an obstacle or a user touches the seat 15, and the seat 15 is dented or bent in the direction of the car door 11, that is, inside. , Provided to detect sagging or deformation. Further, the state where the car door 11 is closed is also detected.

  Next, the operation in this embodiment will be described. First, the case where the closed car door 11 opens will be described.

  When the car door 11 is opened in conjunction with the landing door 12 from the closed state shown in FIG. 1, the pulley 17 disposed on the opposite side of the car 7 from the entrance and exit of the car door 11 is caused by the opening force of the car door 11. Press. Since the interlocking rope 27 is fixed to the wall surface near the car upright column 14 as described above, the interlocking rope 27 slides on the contact surface with the pulley 17. Along with the operation of the interlocking rope 27, the seat 15 connected to the interlocking rope 27 slides around the car door 11 with the opening operation of the car door 11. When attention is paid to the movement of the seat 15 at this time, the car door 11 slides relative to the car door 11, but when viewed from the passenger of the car 7, the car door 11 and the car 7 The portion of the seat 15 located in the gap does not move even during the opening operation of the car door 11 because the seat 15 is fixed to the car 7. For this reason, even if a passenger or some object in the car 7 comes into contact with the seat 15 in the vicinity of the gap between the car door 11 and the car 7, it is not drawn into the gap. Further, since the portion of the sheet 15 facing the inside of the car 7 moves in the direction opposite to the gap, it is not drawn into the gap even if it remains in contact with this portion.

  Next, the case where the opened car door 11 is closed will be described.

  When the car door 11 is closed in conjunction with the landing door 12 from the open state shown in FIG. 2, the pulley 17 disposed on the entrance side of the car 7 pushes the interlocking rope 27 by the closing force of the car door 11. . Since the interlocking rope 27 is fixed to the wall surface near the car upright column 14 as described above, the interlocking rope 27 slides on the contact surface with the pulley 17. With the operation of the interlocking rope 27, the seat 15 connected to the interlocking rope 27 slides around the car door 11 with the closing operation of the car door 11. When attention is paid to the movement of the seat 15 at this time, the car door 11 slides relative to the car door 11, but when viewed from the passenger of the car 7, the car door 11 and the car 7 The portion of the seat 15 positioned in the gap does not move even during the closing operation of the car door 11 because the seat 15 is fixed to the car 7. For this reason, even if a passenger or some object in the car 7 comes into contact with the seat 15 in the vicinity of the gap between the car door 11 and the car 7, it is not drawn into the gap. Further, even if the portion of the sheet 15 facing the inside of the car 7 is contacted, it does not move in the direction of the gap, so that even if it remains in contact with this portion, it is not drawn into the gap.

  By the way, in the case of the closing operation, there is a possibility that an obstacle is caught between the car doors 11. In the present embodiment, the micro switch 29 is arranged assuming this case. That is, in the case of the closing operation, when any obstacle is sandwiched between the car doors 11, the seat 15 is relatively pushed by the obstacles with the closing operation of the car door 11. The sheet 15 formed of a synthetic resin material is dented inward by this pressing force. In other words, the shape of the pressed portion changes from a stretched state to a sagging state. When the micro switch 29 detects the slack of the seat 15 by coming into contact with the seat 15, the micro switch 29 reverses the car door 11. Actually, a reverse operation instruction is output as a signal to an operation control device (not shown) of the elevator apparatus. As a result, the car door 11 reverses. In this case, the opening operation is immediately switched. According to the present embodiment, it is possible to prevent the obstacle from being caught in this way.

  The micro switch 29 detects the slack of the sheet 15 by contacting the sheet 15 even when the car door 11 is normally closed and contacts the other car door 11. However, the normal closing operation and the obstacle pinching differ in the position where the other car door 11 comes into contact, the time required to detect contact after starting the closing operation, the pressing force at the time of contact, and the like. Therefore, by recognizing this difference, it is possible to identify a normal closing operation and an obstacle being caught.

  According to the present embodiment, as described above, the seat 15 moves in the direction in which the seat 15 is particularly drawn in the gap formed between the car door 11 and the car 7. Therefore, the obstacle is not drawn into the gap by the opening / closing operation of the car door 11.

  Although the present embodiment is configured as described above for preventing the drawing into the gap and preventing the car door 11 from being caught, the present embodiment is not limited to the above-described configuration, and various modifications can be considered.

  For example, in the present embodiment, in order to make it easy to detect the sliding interlocking with the interlocking rope 27 of the sheet 15 and the deformation of the sheet 15, it is formed of a flexible and lightweight synthetic resin and the reinforcing bar 25 is embedded therein. However, since the material of the sheet 15 can be wound around the car door 11 and deformed by external force, it need not be formed of a synthetic resin material, and other materials may be used. Further, the reinforcing bars 25 may be attached from the outside without being embedded in the sheet 15. In this case, since the sheet 15 has irregularities formed on the inside in order to embed the reinforcing bars 25 in the sheet 15, it is not always necessary to form the irregularities unless it is embedded. However, it is desirable to provide a recess in consideration of the bending at the pulley 17 portion.

  Further, in the present embodiment, it is configured to support the sliding of the flexible sheet 15 by using the reinforcing bar 25 which is a hard material. However, as the material, the cost, strength, usage amount, etc. are taken into consideration. Hard materials other than iron may be used.

  In this embodiment, since the flexible sheet 15 is used, the microswitch 29 is disposed inside the sheet 15 so that the deformation of the sheet 15 can be detected. In the present embodiment, only one is attached to the central portion of the car door 11 for the sake of convenience. However, it is preferable that the car door 11 is disposed at a position where it can easily come into contact with an obstacle. That is, a plurality of microswitches 29 may be attached. Moreover, you may comprise so that the deformation | transformation to the inner side of the sheet | seat 15 can be detected using another apparatus. In addition, a configuration is provided in which the deformation of the seat 15 is regarded as contact with an obstacle and the deformation of the seat 15 is detected. However, in actuality, it is only necessary to detect the pressure applied to the car door 11 by the obstacle. You may comprise so that a sensor etc. may be incorporated in itself and this press can be detected.

  Further, in the present embodiment, the pulleys 17 are disposed above and below the car door 11 for smooth sliding of the seats 15, but a pair of pulleys 17 is provided only above the interlocking rope. The seat 15 may be hung from 27.

  Further, in the present embodiment, the sheet fixing member 16 is attached in the vicinity of the car upright column 14. As is clear from FIGS. 1 and 2, since the car door 11 overlaps with the car door 11 both in the open state and in the closed state, the length of the sheet 15 wound around the car door 11 is minimized. Because it can. Therefore, it is considered that this position is optimal, but depending on the attachment conditions and the like, the seat 15 can be made longer and attached to the outer wall surface of the car 7 away from the upright pillar 14.

  In the present embodiment, the description has been given focusing on preventing the car door 11 and the car 7 from being pulled into the gap. The configuration provided in the car 7 and the car door 11 can be applied to the hall wall 13 and the hall door 12 as they are, so that the pulling into the gap formed by the hall wall 13 and the hall door 12 is prevented. It can be performed.

  The present invention relates to an elevator apparatus, but the configuration disclosed in the present embodiment can be applied to an apparatus having a sliding door type door and having a problem of drawing into a gap between the door and the wall. It is.

It is a schematic plan view when the vicinity of the entrance / exit to the cage | basket | car of the elevator apparatus using one Embodiment of the drawing-in prevention apparatus which concerns on this invention is seen from upper direction. FIG. 2 is a schematic plan view showing a state in which a car door is open in the pull-in prevention device shown in FIG. 1. It is the top view which showed in detail the structure of the car door vicinity when the car door shown in FIG. 1 is open. It is the elements on larger scale which showed the structure of the sheet | seat part contained in the drawing-in prevention apparatus shown in FIG. It is AA sectional drawing in FIG. It is BB sectional drawing in FIG. It is the schematic when the cage | basket of the conventional common elevator apparatus is seen from upper direction. It is the general-view figure which showed the hall entrance / exit device of the conventional elevator. It is sectional drawing when the state which the door of the boarding gate apparatus in FIG. 8 closed is seen from upper direction. It is sectional drawing when the state where the door of the landing doorway device in FIG. 8 is opened is viewed from above.

Explanation of symbols

  11 car door, 12 landing door, 13 landing wall, 14 car stand, 15 seat, 16 seat fixing member, 17 pulley, 18 connecting bracket, 19, 20, 22 bolt, 21 mounting bracket, 23 concave portion, 24 convex portion, 25 Reinforcing bar, 26 connecting part, 27 interlocking rope, 28 interlocking rope fixing nut, 29 micro switch.

Claims (4)

A sheet having a width that is substantially the same as or higher than the height of the door that automatically opens and closes along the wall surface that forms the entrance / exit of the elevator car, and wound around the door,
Sheet fixing means for fixing the sheet to the wall surface in a state of being stretched around the door;
Sheet attachment means for attaching the sheet to the door so that the sheet can slide in the opening and closing direction on the surface of the door in response to opening and closing of the door;
A device for preventing pull-in to an elevator door. Deformation detecting means for detecting deformation of the seat in the door direction during the opening and closing operation of the door;
Means for reversing the door when deformation of the seat is detected by the deformation detection means;
The apparatus according to claim 1, further comprising: The seat mounting means is
A pair of pulleys attached to the door so as to be located near the upper corner of the door;
An interlocking rope that is installed in a state of being wound around the pair of pulleys and that is fixed to the sheet fixing means whose both ends are positioned on the same horizontal plane as the pair of pulleys in the state of being installed;
Have
The seat is wound around the door by being connected in a suspended state with its upper side connected to the interlocking rope, and is relatively on the surface of the door according to the opening and closing of the door. The apparatus according to claim 1, wherein the apparatus prevents sliding into the elevator door.   The elevator apparatus which has a drawing-in prevention apparatus to the elevator door of any one of Claims 1 thru | or 5.

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