JP2015174703A - Door device for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door device for an elevator capable of suppressing occurrence of a large door gap even when an external force is applied to a door member in a door-closed state.SOLUTION: A door device includes: a plurality of pieces of door members 1, 1... located being deviated front and back; a driving mechanism 2 for suspending and supporting these plurality of pieces of door members 1, 1... and for sliding and moving them; and a regulation mechanism 6. The regulation mechanism 6 has: a first stopper member 60 which is fixed at a lower end of the door member 1; and a second stopper member 61 which is fixed at a position where the first stopper member 60 comes into contact when the lower end part of the door member 1 oscillates in an open door direction D1 by a predetermined oscillation amount.

Description

  The present invention relates to a door device for an elevator, and more particularly to a technique for restricting a door member provided in the door device from being greatly swung by an external force.

  Conventionally, an elevator door device is installed at a landing entrance of each floor of a building equipped with an elevator.

  A door device for an elevator disclosed in Patent Literature 1 and the like includes a plurality of door members that are shifted in the front-rear direction, and a drive mechanism that slides the plurality of door members in the opening direction or the closing direction, respectively. Is provided. This drive mechanism has an upper suspension structure in which a plurality of door members are suspended and supported.

JP 2010-173767 A

  As shown in FIG. 7, when a plurality of door members 9, 9... Are in a closed state, a conventional door device for an elevator applies the external force F1 to the predetermined door member 9. Oscillates greatly and has a problem that a large door gap G1 is generated in the lower part of the door device.

  This invention is the invention which solves the said subject, and it is an elevator use which can suppress that a big door gap arises in the lower part of a door apparatus, even when it applies when external force is applied with respect to the door member in a closed state. An object of the present invention is to provide a door device.

  In order to solve the above problems, the present invention is an elevator door device having the following configuration.

  That is, the present invention is a door device for an elevator installed at a hall entrance / exit of at least one floor among buildings having a plurality of floors. The door device according to the present invention includes a plurality of door members that are shifted in the front-rear direction, and a drive mechanism that is installed in the building and that slides the plurality of door members in the door opening direction or the door closing direction along the left-right direction. And a regulation mechanism. The restricting mechanism is configured such that a predetermined door member included in the plurality of door members is forcibly swung in the door opening direction in a closed state where the plurality of door members are fully closed at the landing doorway. regulate. The drive mechanism is an upper suspension mechanism that supports the plurality of door members in a suspended manner. The regulating mechanism includes a first stopper member that is fixed to a lower end portion of the predetermined door member, and a lower end portion of the predetermined door member that is swung by a predetermined swing amount in the door opening direction. A second stopper member fixed at a position where the first stopper hits.

  It is preferable that the regulation mechanism further includes an adjustment mechanism that adjusts a relative vertical position between the first stopper member and the second stopper member.

  The second stopper member has a lower surface configured to contact the first stopper when the predetermined door member swings by the predetermined swinging amount, and the lower surface is an end in the door opening direction. It is preferable that the closer to the part, the more inclined surface is located on the upper side.

  The present invention restricts a predetermined door member included in the plurality of door members from being forcibly swung in the opening direction in a closed state in which the plurality of door members are fully closed at the entrance / exit. Provide mechanism. The restriction mechanism is a simple mechanism having a first stopper member and a second stopper member.

  Therefore, the present invention has an effect that it is possible to effectively suppress the occurrence of a large door gap in the lower portion of the door device in the closed state with a simple structure.

It is a rear view which shows the whole door apparatus for elevators of one Embodiment of this invention. It is a perspective view showing the whole door device for elevators of one embodiment of the present invention. It is a perspective view which expands and shows the A section of FIG. It is a disassembled perspective view of the principal part shown in FIG. It is a rear view which shows the locus | trajectory of the pin body at the time of the normal door opening by the control mechanism with which the door apparatus for elevators of one Embodiment of this invention is provided. It is a rear view which shows the locus | trajectory of the pin body at the time of forced opening by the control mechanism with which the door apparatus for elevators of one Embodiment of this invention is provided. It is a front view which shows roughly the door gap produced with the door apparatus for conventional elevators.

  The present invention will be described based on embodiments shown in the accompanying drawings.

  1 and 2 show an elevator door device (hereinafter simply referred to as a “door device”) according to an embodiment of the present invention.

  The door device of the present embodiment is a door device installed at a landing entrance (not shown) of at least one floor among buildings having a plurality of floors.

  FIG. 1 is a rear view of the door device of the present embodiment as viewed from the elevator side, and FIG. 2 is a perspective view.

  The door device according to the present embodiment includes four door members 1, 1... That are shifted in the front-rear direction, a drive mechanism 2 that slides the four door members 1 in the left-right direction, an upper cover 3, Vertical frames 4, 4, a sill 5, and a restriction mechanism 6.

  The “left-right direction” used in the present invention is a direction in which the sliding door members 1, 1... Slide, and the direction in which the door members 1, 1. The direction in which the door members 1, 1... Close along the left-right direction is referred to as “door closing direction D2”.

  The “front-rear direction” used in the present invention is a direction orthogonal to the left-right direction, that is, a direction in which a user enters and exits between a building landing and an elevator car (not shown). The direction in which the user descends from the elevator car to the landing along the front-rear direction is referred to as “front direction D3”, and the direction in which the user enters the elevator car from the landing along the front-rear direction is referred to as “rear direction D4”.

  The four door members 1, 1... Are long plate-like members that are positioned so that the lateral direction is the short direction, the vertical direction is the longitudinal direction, and the longitudinal direction is the thickness direction. The four door members 1, 1... Are a pair of door members 1, 1 located in one half in the left-right direction of the hall entrance and a pair of door members located in the other half in the left-right direction of the hall entrance. It consists of door members 1 and 1.

  The pair of door members 1 and 1 includes a front door member 1 (hereinafter referred to as “front door member 10”) and a rear door member 1 (hereinafter referred to as “rear door member 11”).

  The front door member 10 located in one half in the left-right direction of the hall entrance and the front door member 10 located in the other half are in the same front-rear position. Similarly, the rear door member 11 located in one half in the left-right direction of the landing entrance and the rear door member 11 located in the other half are in the same front-rear position.

  The drive mechanism 2 is a mechanism fixed to the upper part of the building entrance / exit of the building, and the left front and rear door members 10 and 11 and the right front and rear door members 10 and 11 are respectively connected to corresponding door hangers 20, 20. The suspension is supported (see FIG. 1).

  That is, the drive mechanism 2 includes the door hangers 20 and 20 that suspend and support the upper ends of the left and right front door members 10, and the door hangers 20 and 20 that support the upper ends of the left and right rear door members 11, respectively. Have

  These four door hangers 20, 20,... Slide in the door opening direction D1 or the door closing direction D2 in conjunction with the opening / closing operation of the door of the elevator car, so that the door device opens and closes the landing doorway. The pair of front door member 10 and rear door member 11 slides in the same direction at a 2: 1 movement amount ratio.

  The upper cover 3 is a cover that is fixed so as to cover the front direction D <b> 3 of the drive mechanism 2.

  The left and right vertical frames 4, 4 are composed of a vertical frame 4 fixed to one end portion in the left-right direction of the landing entrance and a vertical frame 4 fixed to the other end portion in the left-right direction of the landing entrance.

  The sill 5 has a groove structure that supports the lower end portions of the four door members 1, 1.

  As shown in FIG. 1 and FIG. 2, in the closed state of the door device of the present embodiment, the vertical frame 4, the front door member 10, and the rear door member 11 are at the left and right ends in the left and right halves of the landing doorway. It is located in the state which summed up parts, and the edge parts which the left and right rear door members 11 oppose are located in contact.

  In other words, in the closed state, the end of the vertical frame 4 in the door closing direction D2 and the end of the front door member 10 adjacent thereto in the door opening direction D1 overlap each other in the front-rear direction. And the edge part of the door closing direction D2 of the front door member 10 and the edge part of the door opening direction D1 of the rear door member 11 overlap and are located in the front-back direction.

  The restricting mechanism 6 is a mechanism that restricts the left and right front door members 10 and the rear door member 11 from being forcibly swung in the door opening direction D1 by an external force in the closed state shown in FIGS. 1 and 2. .

  In the present embodiment, the front side regulation mechanism 6 that regulates the forced swinging of the front door member 10 and the rear side regulation mechanism 6 that regulates the forced swinging of the rear door member 11 are separately provided. ing.

  First, the front regulating mechanism 6 will be described.

  As shown in FIGS. 3 and 4, the front regulating mechanism 6 includes a first stopper member 60 that is fixed to an end portion of the front door member 10 in the door opening direction D <b> 1 and an end portion of the vertical frame 4 in the door closing direction D <b> 2. And a second stopper member 61 fixed to the head.

  The first stopper member 60 integrally includes a fixed piece 600 that is screwed to the lower end portion of the front door member 10 and a pin body 601 that protrudes from the fixed piece 600 in the front direction D3.

  The second stopper member 61 includes a base member 610 that can be screwed to the lower end of the vertical frame 4 in a cantilever manner, and an abutting member 611 that is screwed to the base member 610 so as to be adjustable in the vertical direction. .

  The abutting member 611 is a member in which a first flat plate portion 612 and a second flat plate portion 613 both having a flat plate shape are continuous in an L shape in a plan view via a corner portion. The first flat plate portion 612 is positioned with the left-right direction as the thickness direction. The second flat plate portion 613 is positioned with the front-rear direction as the thickness direction.

  The first flat plate portion 612 has long fixing holes 614 that are long in the vertical direction at a plurality of locations (two locations in the present embodiment) that are spaced apart in the vertical direction. The abutting member 611 is fixed to the base member 610 so as to be adjustable in the vertical direction by passing the fastener 615 at an arbitrary position in the vertical direction in each of the long holes 614 and fixing the fastener 615 to the base member 610.

  In the present embodiment, a structure such as a long hole 614 that allows adjustment of the vertical position of the abutting member 611 that is the main part of the second stopper member 61 is the relative relationship between the first stopper member 60 and the second stopper member 61. An adjustment mechanism 62 that adjusts the vertical position is configured.

  The 2nd flat plate part 612 has the lower surface 616 comprised so that the pin body 601 which the 1st stopper member 60 has can contact | abut. As shown in FIGS. 5 and 6, the lower surface 616 is an inclined surface that is slightly inclined so that the portion closer to the end portion in the door opening direction D <b> 1 is positioned higher.

  The trajectory of the pin body 601 indicated by a broken line in FIG. 5 is a trajectory during normal opening of the door, and the pin body 601 moves in the door opening direction D1 without changing the vertical position. At this time, the pin body 601 does not contact the lower surface 616.

  A locus of the pin body 601 indicated by a broken line in FIG. 6 is a locus at the time of forced opening when the front door member 10 is forcibly swung by an external force. At this time, the pin body 601 moves in the door opening direction D1 while drawing a gentle arc-shaped locus. The pin body 601 moves upward as it moves in the door opening direction D <b> 1, and contacts a portion of the lower surface 616 near the end in the door opening direction D <b> 1. When the pin body 601 comes into contact with a part of the lower surface 616, the front door member 10 is regulated so as not to be further forcedly swung.

  Next, the rear regulating mechanism 6 will be described. In addition, about the structure similar to the front side regulation mechanism 6, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  The rear regulating mechanism 6 includes a first stopper member 60 and a second stopper member 61. The first stopper member 60 is fixed to the end of the rear door member 11 in the door opening direction D1, and the second stopper member 61 is fixed to the end of the front door member 10 in the door closing direction D2.

  The first stopper member 60 has a fixed piece 600 and a pin body 601, the fixed piece 600 is screwed to the lower end portion of the rear door member 11, and the pin body 601 is projected from the fixed piece 600 in the front direction D <b> 3. Provide.

  The second stopper member 61 includes a base member 610 that is screwed to the lower end portion of the front door member 10 in a cantilever manner, and an abutting member 611 that is screwed to the base member 610 so as to be adjustable in the vertical direction. Have. The abutting member 611 has a first flat plate portion 612 and a second flat plate portion 613, and the second flat plate portion 612 is a lower surface slightly inclined so as to be positioned closer to the end in the door opening direction D1. 616.

  The locus of the pin body 601 in the rear regulating mechanism 6 is also a locus as shown in FIGS. That is, when the door is normally opened, the pin body 601 slides in the horizontal direction integrally with the rear door member 11 as shown by a broken line in FIG.

  On the other hand, when an external force is applied to the lower end portion of the rear door member 11 and the rear door member 11 is forcibly swung in the door opening direction D1 (at the time of forced opening), the pin body 601 is 6 moves in the door opening direction D1 integrally with the rear door member 11 along an arcuate locus as shown in FIG. When the pin body 601 swings by a predetermined swing amount in the door opening direction D1, the pin body 601 contacts a part of the lower surface 616 and restricts further swinging of the rear door member 11.

  As described above with reference to the accompanying drawings, the door device of the present embodiment is an elevator door device installed at a landing entrance of at least one floor among buildings having a plurality of floors. The door device of this embodiment is installed in a building with a plurality of (four in this embodiment) door members 1, 1... That are shifted in the front-rear direction, and the door opening direction D <b> 1 or the door closing direction along the left-right direction. D2 includes a drive mechanism 2 that slides and moves a plurality of door members 1, 1. The restricting mechanism 6 is a closed state in which the plurality of door members 1, 1... Are fully closed at the entrance / exit, and the predetermined door members 1 included in the plurality of door members 1, 1. This is a mechanism for restricting the door members 1, 1,...) From being forcibly swung in the door opening direction D1. The drive mechanism 2 is an upper suspension mechanism that supports the plurality of door members 1, 1. The restriction mechanism 6 includes a first stopper member 60 fixed to the lower end portion of the predetermined door member 1 and the lower end portion of the predetermined door member 1 swinging by a predetermined swing amount (for example, 20 mm) in the door opening direction D1. And a second stopper member 61 fixed at a position where the first stopper member 60 hits.

  In the door device of this embodiment, when an external force is applied to the predetermined door member 1 in the closed state in the door opening direction D1, the suspended and supported door member 1 swings by a predetermined swing amount. At the time, the first stopper member 60 comes into contact with the second stopper member 61. Therefore, according to the door device of the present embodiment, it is possible to effectively suppress the occurrence of a large door gap in the lower portion of the door device in the closed state with a simple structure in which the first stopper member 60 and the second stopper member 61 are attached. It becomes possible.

  In the door device of the present embodiment, the restriction mechanism 6 is provided on all of the four door members 1, 1..., But only on a part of the four door members 1, 1. It is also possible to provide a regulating mechanism 6 (only on the rear door members 11, 11). Moreover, although the door apparatus of this embodiment is a double door type door apparatus provided with the four door members 1,1, ..., other systems, such as a single door type provided with the two door members 1,1, etc. The door device may be used. Also in this case, it is possible to suppress the door gap by providing a similar restriction mechanism 6.

  In the door device of the present embodiment, the regulation mechanism 6 is an adjustment that adjusts the relative vertical position of the first stopper member 60 and the second stopper member 61 (in this embodiment, the vertical position of the second stopper member 61). A mechanism 62 is further provided.

  By adjusting the relative vertical position of the first stopper member 60 and the second stopper member 61 by the adjustment mechanism 62, the swinging amount of the door member 1 when the first stopper member 60 and the second stopper member 61 hit each other is adjusted. Can be adjusted (that is, the regulated door gap can be adjusted).

  In the door device of this embodiment, the vertical position of the second stopper member 61 can be adjusted. However, the vertical position of the first stopper member 60 may be adjustable, and the first stopper member 60 and the second stopper may be adjusted. The upper and lower positions of both members 61 may be adjustable.

  In the door device of the present embodiment, the second stopper member 61 has a lower surface 616 configured so that the first stopper member 60 hits when the predetermined door member 1 swings by a predetermined swing amount. Reference numeral 616 denotes an inclined surface that is positioned upward as it is closer to the end in the door opening direction D1.

  For this reason, in the present embodiment, the first stopper member 60 is prevented from being caught by the lower surface 616 of the second stopper member 61 when the door is normally opened and obstructing the opening operation. The structure is such that the amount of swinging is easily regulated by being applied to the lower surface 616.

  As mentioned above, although this invention was demonstrated based on embodiment shown to an accompanying drawing, this invention is not limited to the said embodiment. Within the range intended by the present invention, appropriate design changes can be made.

DESCRIPTION OF SYMBOLS 1 Door member 2 Drive mechanism 6 Control mechanism 60 1st stopper member 61 2nd stopper member 616 Bottom surface 62 Adjustment mechanism D1 Door opening direction D2 Door closing direction D3 Front direction D4 Back direction

Claims (3)

A door device for an elevator installed at a hall entrance of at least one floor among buildings having multiple floors,
A plurality of door members positioned to be shifted back and forth,
A drive mechanism installed in the building and slidingly moving the plurality of door members in a door opening direction or a door closing direction along a left-right direction;
A restriction mechanism that restricts a predetermined door member included in the plurality of door members from being forcibly swung in the opening direction in a closed state where the plurality of door members are fully closed at the landing doorway. And
The drive mechanism is
An upper suspension mechanism that supports the plurality of door members in a suspended manner,
The regulation mechanism is
A first stopper member fixed to the lower end of the predetermined door member;
And a second stopper member fixed at a position where the first stopper member hits when a lower end portion of the predetermined door member swings by a predetermined swing amount in the door opening direction. Door device. The regulation mechanism is
The elevator door device according to claim 1, further comprising an adjustment mechanism that adjusts a relative vertical position of the first stopper member and the second stopper member. The second stopper member is
The first door has a lower surface configured so that the first stopper hits when the predetermined door member swings by the predetermined swing amount, and the lower surface is located at a position closer to the end in the door opening direction. The elevator door device according to claim 1 or 2, wherein the door device is an inclined surface.

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