CN110214216B - Automatic door device having guide rail and stopper, stopper attached to guide rail, and method for attaching stopper to guide rail - Google Patents

Abstract

The displacement of the stopper relative to the guide rail is suppressed. The automatic door device is provided with: a guide rail which guides the door in an opening and closing direction; and a stopper mounted to the rail. The stopper contacts the door to restrict movement of the door in the opening and closing direction to a predetermined position. Further, a retaining member is provided, which is configured to counter a torque for rotating the stopper about a central axis of a portion of the end portion of the stopper on the opposite side of the door, which portion is in contact with the guide rail.

Description

Automatic door device having guide rail and stopper, stopper attached to guide rail, and method for attaching stopper to guide rail

Technical Field

The present invention relates to an automatic door device including at least a guide rail and a stopper. The present invention also relates to a stopper attached to a rail and a method of attaching the stopper to the rail.

Background

As a sliding type automatic door including a single sliding door or a double sliding door, an automatic door is known in which a stopper for restricting a movement range of the door in an opening/closing direction is attached to a guide rail. The stopper receives a force generated by the collision of the door. The stopper is attached so as not to fall off the guide rail even when the door collides.

As a study for firmly attaching the stopper to the guide rail, various methods have been proposed. For example, japanese patent No. 5834254 proposes the following method: by providing a fixing member having a wedge shape between the guide rail and the stopper main body, the stopper is firmly fixed to the guide rail by a wedge effect.

Disclosure of Invention

A force acting on the stopper due to a collision of the door may be generated at a position deviated from the center of gravity of the stopper. In this case, not only the force in the opening and closing direction of the door but also a torque for rotating the stopper with respect to the guide rail around the contact portion between the stopper and the guide rail is applied to the stopper. Therefore, there is a possibility that the displacement and the falling-off of the stopper cannot be sufficiently suppressed only by the frictional force by the wedge effect.

The present invention aims to provide an automatic door device, a stopper and a method for mounting the stopper, which can effectively solve the problems.

The present invention is an automatic door device, comprising: a guide rail which guides the door in an opening and closing direction; and a stopper attached to the rail, the stopper contacting the door to restrict movement of the door in the opening and closing direction to a predetermined position, the automatic door apparatus including a retaining member configured to resist a torque for rotating the stopper about a central axis of a portion of an end portion of the stopper on an opposite side of the door contacting the rail.

In the automatic door apparatus according to the present invention, the retaining member may include: a recess provided in one of the stopper and the guide rail; and a protrusion provided on the other of the stopper and the guide rail and fitted into the recess.

In the automatic door apparatus according to the present invention, the concave portion and the convex portion may extend in the opening/closing direction.

In the automatic door apparatus according to the present invention, when the concave portion is provided in the stopper, a lower surface of the concave portion of the stopper may at least partially overlap an upper surface of the convex portion of the guide rail in a vertical direction. In addition, when the convex portion is provided on the stopper, an upper surface of the convex portion of the stopper may at least partially overlap a lower surface of the concave portion of the guide rail in a vertical direction.

In the automatic door apparatus according to the present invention, the stopper may be fixed to the guide rail at a position shifted from a center of gravity of the stopper by the retaining member.

In the automatic door apparatus according to the present invention, the stopper may be provided with a fastening member for fastening the stopper at a fastening position with respect to the rail, and a distance from the fastening position to an end portion of the stopper on the door side may be shorter than a distance from the fastening position to an end portion of the stopper on the opposite side of the door.

The automatic door apparatus of the present invention may further include a door hanger having: a side plate having a through hole formed therein; a door pulley which is located on the side of the guide rail with respect to the side plate and rotates along the guide rail; and an anti-jump member fixed to the side plate and located at least partially below the guide rail, the anti-jump member being configured to be inserted into the through hole of the side plate from a side opposite to the guide rail and to be located below the guide rail.

In the automatic door apparatus according to the present invention, the anti-jump member may include: a movement restricting section located below the guide rail; a fixing portion fixed to the side plate on a side opposite to the guide rail; and a connecting portion inserted into the through hole of the side plate and connecting the movement restricting portion and the fixing portion.

In the automatic door apparatus according to the present invention, the fixing portion may include: a first fixing portion which is located on one side of the movement restricting portion in the opening/closing direction and is fixed to the side plate by a fastener; and a 2 nd fixing portion which is located on the other side of the movement restricting portion in the opening/closing direction and is fixed to the side plate by a fastener, wherein the 1 st fixing portion and the 2 nd fixing portion at least partially overlap when the fixing portion is viewed in the opening/closing direction.

In the automatic door apparatus according to the present invention, the connecting portion may include: a 1 st link portion inserted into the through hole of the side plate and located above the movement restricting portion; and a 2 nd connecting portion that connects the 1 st connecting portion and the movement restricting portion, the 1 st connecting portion, the 2 nd connecting portion, and the movement restricting portion of the connecting portion being integrally configured.

The automatic door apparatus of the present invention may further include a drive mechanism for driving the door, the drive mechanism including: a driven pulley located at a position distant from a driving pulley of a driving source in the opening and closing direction; a belt wound around the drive pulley and the driven pulley; and a belt tension adjusting portion that supports the driven pulley so as to be movable in the opening/closing direction, the belt tension adjusting portion including: a substrate; a pulley support body that is attached to the base body so as to be slidable in the opening/closing direction with respect to the base body, and that supports the driven pulley; an elastic body that applies an elastic force corresponding to a tension of the belt to the pulley support body; and a coupling member that couples the elastic body and the base member, wherein the base member includes a base plate and a tension adjustment reference portion that is connected to the base plate and to which the coupling member is fixed, and the pulley support member includes: a housing portion for housing the elastic body; and a sliding portion that is located between the housing portion and the reference portion for tension adjustment and slides on the substrate along the opening/closing direction, wherein the reference portion for tension adjustment and the sliding portion are configured to be capable of at least partially overlapping each other when viewed along a width direction that is parallel to a surface direction of the sliding portion and orthogonal to the opening/closing direction.

In the automatic door apparatus according to the present invention, a recess or a step portion into which the tension adjustment reference portion can enter may be formed at an end portion of the slide portion on the tension adjustment reference portion side.

In the automatic door apparatus according to the present invention, the base body may further include a convex reinforcing portion that connects the base plate and the tension adjustment reference portion and protrudes toward the pulley support body side.

In the automatic door apparatus of the present invention, the base plate, the reinforcing portion, and the tension adjustment reference portion may be integrally formed by bending one plate-shaped member,

the convex shape of the reinforcing portion protrudes toward a curved center side of the plate-like member.

In the automatic door apparatus according to the present invention, the housing portion of the pulley support body may include a pair of wall portions arranged with a space therebetween in the opening/closing direction, the elastic body may be located between the pair of wall portions, the belt tension adjusting portion may further include a tension adjustment display portion located at an end portion of the elastic body, an opening portion, a recess portion, or a stepped portion into which the tension adjustment display portion is able to enter may be formed in a wall portion of the pair of wall portions located on a side farther from the tension adjustment reference portion, and at least 1 stepped portion may be formed in an end portion of the tension adjustment display portion located on a side farther from the tension adjustment reference portion.

The automatic door apparatus of the present invention may further include a drive pulley coupled to a drive source of a drive mechanism for driving the door, the drive pulley including: a metal bushing portion formed with a through hole into which a drive shaft of the drive source is inserted; and a resin pulley portion that covers the metal bushing portion from an outside in a radial direction of the drive shaft, wherein the metal bushing portion includes a main body portion and a neck portion that protrudes from a side surface of the main body portion to a position closer to the drive source side than an end surface of the resin pulley portion in an axial direction of the drive shaft, and a gap is provided between an outer surface of the neck portion and the resin pulley portion.

In the automatic door device according to the present invention, the automatic door device may further include a wiring presser attached to the guide rail so as to cover the wiring connected to the drive source of the drive mechanism that drives the door, and a recess or an opening through which the wiring can pass may be formed in a part of the wiring presser.

The present invention provides a stopper attached to a rail that guides a door in an opening/closing direction, the stopper including: a contact portion that contacts the door to restrict movement of the door in the opening and closing direction to a predetermined position; and a retaining member configured to resist a torque for rotating the stopper, the rotation being rotation around a portion of the stopper located on an opposite side of the contact portion and in contact with the guide rail as a center axis.

The present invention provides a mounting method for mounting a stopper to a rail guiding a door in an opening/closing direction, the mounting method including: fitting a concave portion provided to one of the stopper and the guide rail into a convex portion provided to the other of the stopper and the guide rail; and fixing the stopper to the rail by inserting a bolt into the stopper from below.

In the mounting method of the present invention, the stopper may include: a stopper body formed with a hole into which the bolt is inserted and contacting the guide rail from above; and a fixing member having a through hole into which the bolt is inserted, and contacting the guide rail from below.

According to the present invention, displacement of the stopper with respect to the rail can be suppressed.

Drawings

Fig. 1 is a front view showing an automatic door apparatus according to an embodiment.

Fig. 2 is a front view showing a stopper according to an embodiment.

Fig. 3 is a side view showing the stopper.

Fig. 4 is a perspective view showing a guide rail according to an embodiment.

Fig. 5 is an enlarged view of the rail portion of the guide rail.

Fig. 6 is a side view showing the guide rail and the stopper in a combined state.

Fig. 7 is a perspective view showing a guide rail according to a modification.

Fig. 8 is a perspective view showing a guide rail according to a modification.

Fig. 9 is a perspective view showing a guide rail according to a modification.

Fig. 10 is a perspective view showing a door hanger according to an embodiment.

Fig. 11 is a perspective view of the door hanger showing a state where the anti-jump member is not attached.

Fig. 12 is a perspective view showing the anti-jump member.

Fig. 13 is a side view showing the anti-jump member.

Fig. 14 is a view showing a process of suspending the door to the guide rail.

Fig. 15 is a view showing a process of attaching the anti-jump member to the side plate of the door hanger.

Fig. 16 is a perspective view showing a belt tension adjusting portion according to an embodiment.

Fig. 17 is a plan view showing the base with the tension adjusting portion.

Fig. 18 is a bottom view of the pulley support body showing the belt tension adjusting portion.

Fig. 19 is an enlarged view of the tension adjustment display unit and members around the tension adjustment display unit.

Fig. 20 is a longitudinal sectional view showing a drive pulley according to an embodiment.

Fig. 21 is a perspective view showing a wiring pressing member according to an embodiment.

Fig. 22 is a diagram for explaining a method of disposing the wiring presser.

Fig. 23 is a diagram for explaining a method of disposing the wiring presser.

Fig. 24 is a side view showing a wiring pressing member according to an embodiment.

Fig. 25 is a diagram showing a process of fixing the wiring presser to the guide rail.

Detailed Description

Hereinafter, an automatic door apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings. The embodiments described below are merely examples of the embodiments of the present invention, and the present invention is not to be construed as being limited to these embodiments. In addition, with respect to the drawings referred to in the present embodiment, there are cases where: the same or similar portions having the same function are denoted by the same reference numerals or similar reference numerals, and redundant description thereof is omitted. For convenience of explanation, the dimensional ratio of the drawings may be different from the actual ratio, and a part of the structure may be omitted from the drawings.

Automatic door device

Fig. 1 is a front view showing an automatic door apparatus 10 according to the present embodiment. The automatic door device 10 is fixed to a rail provided in an opening such as a doorway of a building.

The automatic door device 10 includes: a door 11 having a door main body 12 and a door hanger 20; a guide rail 40 from which the door hanger 20 of the door 11 is suspended; a stopper 50 attached to the rail 40; a drive mechanism 60 that drives the door 11 along the guide rail 40; and a coupling mechanism 30 for coupling the door 11 and the drive mechanism 60. In the following description, the moving direction of the door 11 along the guide rail 40 is also referred to as an opening/closing direction D1. A direction perpendicular to the opening/closing direction D1 and the vertical direction (vertical direction) is also referred to as a width direction D2.

Hereinafter, each component of the automatic door apparatus 10 will be described.

(stop piece)

First, the stopper 50 will be explained. The stopper 50 is the following: and contacts with, for example, the door hanger 20 of the door 11 to restrict the movement of the door hanger 20 in the opening and closing direction D1 to a predetermined position.

Fig. 2 is a front view showing the stopper 50. Fig. 3 is a side view showing the stopper 50. The stopper 50 includes a stopper body 51, a stopper rubber 55, a fixing member 56, and a bolt 57.

The stopper body 51 is a member that becomes a main body of the stopper 50, and is formed of metal such as aluminum or aluminum alloy, for example. The stopper main body 51 is mounted to the rail portion 43 of the rail 40, discussed later, from above.

As shown in fig. 3, the stopper body 51 has a 1 st leg portion 52 and a 2 nd leg portion 53 projecting downward, and a recessed portion 54 is formed between the 1 st leg portion 52 and the 2 nd leg portion 53. In a state where the stopper 50 is mounted to the rail 40, the fixing member 56 and the rail portion 43 of the rail 40 are located at the recessed portion 54. Further, the stopper body 51 has a hole extending in the vertical direction formed between the 1 st leg portion 52 and the 2 nd leg portion 53, and the bolt 57 is inserted into the hole from below. Further, a hole extending in the opening/closing direction D1 is formed in the stopper main body 51, and the stopper rubber 55 is inserted into the hole. Further, although not shown, the stopper body 51 may be configured such that the bolt 57 is inserted from above.

As shown in fig. 3, a concave portion 522 is formed on the inner side surface 521 (the side of the concave portion 54) of the 1 st leg portion 52. The recess 522 extends in the opening and closing direction D1. The inner side surface 531 (the recessed portion 54 side) of the 2 nd leg portion 53 includes an inclined surface inclined inward as it goes upward.

The stopper rubber 55 is provided to the stopper main body 51 in order to reduce the impact force F of the door 11 on the stopper 50. The stopper rubber 55 includes: a contact portion 551 located on the door 11 side of the stopper body 51; a locking portion 552 located on the side of the stopper body 51 opposite to the door 11; and a shaft portion which is located between the contact portion 551 and the locking portion 552 and which is inserted into the stopper body 51. A rubber member such as the stopper rubber 55 may be provided on the door 11 side instead of the stopper 50 side.

The fixing member 56 is a member interposed between the rail portion 43 of the rail 40 and the 2 nd leg portion 53 of the stopper main body 51 in a state where the stopper 50 is attached to the rail 40. The fixing member 56 includes a 1 st side 561 contacting a side of the rail portion 43 and a 2 nd side 562 contacting a side 531 of the 2 nd leg portion 53. Further, a through hole into which the bolt 57 is inserted is formed in the fixing member 56. Each of the 1 st side surface 561 and the 2 nd side surface 562 includes an inclined surface inclined inward (toward the bolt 57) as it goes upward.

Preferably, as shown in fig. 2, the fixing member 56 has an end 563 located closer to the door 11 than an end 511 of the stopper body 51 closer to the door 11. This can increase the contact distance between fixing member 56 and guide rail 40 in opening/closing direction D1, and increase the frictional force generated between fixing member 56 and guide rail 40. The end 563 of the fixing member 56 is located at a position not closer to the door 11 than the end of the contact portion 551 closer to the door 11.

The bolt 57 is a member into which the stopper body 51 and the fixing member 56 are inserted from below when the stopper 50 is attached to the rail 40. The bolt 57 includes: a head 571 located below the fixing member 56; and a shaft portion 572 inserted into the stopper body 51 and the fixing member 56.

(guides)

Next, the guide rail 40 will be explained. The guide rail 40 is a member for guiding the door 11 in the opening and closing direction D1.

Fig. 4 is a perspective view showing the guide rail 40. The guide rail 40 includes: a bottom portion 41, a side portion 42, a rail portion 43, a wall portion 44, and a protruding strip portion 45. In the example shown in fig. 4, the guide rails 40 have the same cross-sectional shape in the opening and closing direction D1. In other words, each component of the guide rail 40 extends in the opening/closing direction D1 and is integrally formed.

The bottom 41 includes, for example, an upper plate 411 and a lower plate 412. The upper plate 411 and the lower plate 412 are coupled to each other, and a hollow portion 413 is formed between the upper plate 411 and the lower plate 412. This reduces the weight of the bottom portion 41 and improves the rigidity of the bottom portion 41.

The side portion 42 is a member extending upward from the bottom portion 41. A protruding portion 45 is provided on the inner surface (the rail portion 43 side) of the side portion 42. On the inner surface of the side portion 42, a device such as a driving mechanism 60 is fixed by a protruding portion 45 and the like.

The rail portion 43 is a member for moving the door pulley 21 discussed later of the door hanger 20. The rail portion 43 has a convex shape protruding upward from the bottom portion 41.

Fig. 5 is an enlarged view of the rail portion 43. A convex portion 432 is formed on the inner side surface 431 (side portion 42 side) of the rail portion 43. The convex portion 432 extends in the opening and closing direction D1. The convex portion 432 is fitted into the concave portion 522 of the stopper main body 51 of the stopper 50 in a state where the stopper 50 is attached to the rail 40.

The wall portion 44 extends upward from the bottom portion 41 between the side portion 42 and the rail portion 43. As will be described later, an end portion of a wiring presser that covers the wiring arranged on the guide rail 40 is locked to the wall portion 44.

Next, the guide rail 40 and the stopper 50 in a combined state will be described with reference to fig. 6. As shown in fig. 6, the stopper body 51 contacts the rail portion 43 of the guide rail 40 from above. On the other hand, the fixing member 56 contacts the guide rail 40 from below. Specifically, the fixing member 56 is disposed in the recessed portion 54 of the stopper body 51 such that the 1 st side surface 561 contacts the outer side surface of the rail portion 43 and the 2 nd side surface 562 contacts the inner side surface 531 of the 2 nd leg portion 53 of the stopper body 51. As described above, each of the 1 st side surface 561 and the 2 nd side surface 562 includes an inclined surface inclined inward (toward the bolt 57) as it goes upward. Further, a force that presses the side surface of the rail portion 43 and the side surface 531 of the stopper main body 51 upward is applied from the bolt 57 to the fixing member 56. This can increase the frictional force generated between the fixing member 56 and the rail portion 43 and between the fixing member 56 and the 2 nd leg portion 53, and thus, the stopper 50 can be firmly fixed to the guide rail 40.

As shown in fig. 6, the convex portion 432 of the guide rail 40 is fitted into the concave portion 522 of the stopper 50. The lower surface of the concave portion 522 of the stopper 50 and the upper surface of the convex portion 432 of the rail 40 at least partially overlap in the vertical direction V.

An example of a method of attaching the stopper 50 to the rail 40 will be described. First, the convex portion 432 of the rail 40 and the concave portion 522 of the stopper 50 are fitted. Next, the bolt 57 is inserted into the hole of the stopper body 51 and the through hole of the fixing member 56 from below. At this time, the fixing member 56 is pushed upward by the bolt 57 until a desired frictional force is generated between the fixing member 56 and the rail portion 43 and between the fixing member 56 and the 2 nd leg portion 53. Further, although not shown, the bolt 57 may be fixed to the stopper body 51 by fitting a nut or the like to a portion of the shaft portion 572 of the bolt 57 that protrudes above the stopper body 51.

Next, the functions of the convex portion 432 of the guide rail 40 and the concave portion 522 of the stopper 50 will be described. As shown in fig. 2, when the door hanger 20 of the door 11 collides with the stopper rubber 55 of the stopper 50, for example, a collision force F acts on the stopper 50 in the opening/closing direction D1. As shown in fig. 2, the stopper 50 is also subjected to a torque M that rotates the stopper 50 about a central axis C1, which is a portion of the end 502 (the end 512 of the stopper body 51) of the stopper 50 that is located on the opposite side of the door 11 (on the opposite side of the contact portion 551) and that contacts the guide rail 40, as the stopper 50.

The fixing member 56 extends in the opening/closing direction D1. Therefore, the contact distance between the fixing member 56 and the rail portion 43 and between the fixing member 56 and the 2 nd leg portion 53 in the opening/closing direction D1 is long. Therefore, the fixing member 56 effectively functions to suppress displacement of the stopper 50 in the opening and closing direction D1. On the other hand, the contact distance between the fixing member 56 and the rail portion 43 and between the fixing member 56 and the 2 nd leg portion 53 in the vertical direction V is short. When the torque M shown in fig. 2 acts on the stopper 50, the end of the stopper body 51 on the door 11 side is displaced upward at least partially with respect to the guide rail 40. Therefore, the function of the fixing member 56 is considered to be insufficient in terms of suppressing the displacement of the stopper 50 due to the torque M.

Here, the concave portion 522 of the stopper 50 and the convex portion 432 of the rail 40 at least partially overlap in the vertical direction V. Therefore, when the end portion of the stopper body 51 on the door 11 side is displaced upward due to the torque M, the concave portion 522 of the stopper 50 is locked by the convex portion 432 of the guide rail 40. Therefore, the stopper 50 can be prevented from being displaced and the stopper 50 can be prevented from falling off the guide rail 40. In this way, the concave portion 522 of the stopper 50 and the convex portion 432 of the guide rail 40 can function as the retaining member 58 that resists the torque M that rotates the stopper 50 with respect to the center axis C1.

Preferably, the stopper 50 is fixed to the guide rail 40 at a position shifted from the center of gravity of the stopper 50 by the stopper retaining member. This can effectively suppress the rotation of the stopper 50 due to the torque M.

(modification of the concave and convex parts of the retaining member)

The configuration of the concave portion and the convex portion functioning as the stopper member 58 is not particularly limited as long as the stopper member 50 can resist the torque M rotating with respect to the center axis C1.

For example, a convex portion may be provided on the stopper body 51 of the stopper 50, and a concave portion into which the convex portion of the stopper body 51 is fitted may be provided on the guide rail 40. In this case, the upper surface of the convex portion of the stopper 50 and the lower surface of the concave portion of the rail 40 at least partially overlap in the vertical direction V. Therefore, the convex portion of the stopper main body 51 and the concave portion of the guide rail 40 can function as the retaining member 58 that resists the torque M that rotates the stopper 50 with respect to the center axis C1.

In addition, the number of the convex and concave portions provided to the guide rail 40 and the stopper 50 is not particularly limited. For example, a plurality of recesses extending in the opening/closing direction D1 may be provided in one of the rail 40 and the stopper 50, and a plurality of protrusions that fit into the corresponding recesses and extend in the opening/closing direction D1 may be provided in the other of the rail 40 and the stopper 50.

The convex and concave portions provided in the guide rail 40 and the stopper 50 may not extend continuously in the opening/closing direction D1. For example, a plurality of recesses arranged in the opening/closing direction D1 may be provided in one of the guide rail 40 and the stopper 50, and a plurality of protrusions arranged in the opening/closing direction D1 may be provided in the other of the guide rail 40 and the stopper 50 so as to fit into the corresponding recesses.

The shape of the convex portion and the concave portion is arbitrary. For example, the shape of the convex portion may be a cylinder, a triangular prism, a quadrangular prism, a polygonal prism, a cone, a triangular pyramid, a quadrangular pyramid, a polygonal pyramid, or the like. The cross-sectional shape of the recess may be circular, rectangular, polygonal, or the like.

In a state where the stopper 50 is attached to the rail 40, the convex portion and the concave portion may contact each other, or a gap may exist between the convex portion and the concave portion. The clearance is set so that the convex portion and the concave portion come into contact before the stopper 50 rotates relative to the rail 40 and falls off from the rail 40.

The positions of the convex and concave portions provided in the guide rail 40 and the stopper 50 are also not particularly limited. For example, a concave portion or a convex portion may be provided on the outer surface of the 1 st leg portion 52 of the stopper body 51 (the surface on the side of the side portion 42 of the rail 40), and a convex portion or a concave portion that fits into the concave portion or the convex portion of the stopper body 51 may be provided between the side portion 42 of the rail 40 and the rail portion 43.

(example where the retaining means includes a fastening member)

The retaining member 58 may be formed by a method other than the method of integrally providing the guide rail 40 and the stopper 50 with the convex portion and the concave portion. For example, the anti-slip-off means 58 may include a fastening member for fastening the stopper 50 to the rail 40 at a predetermined fastening position in the opening and closing direction D1. Further, the retaining member 58 may include a fastening member in addition to the above-described concave and convex portions integrally provided to the rail 40 and the stopper body 51.

Preferably, the fastening member is fastened to the stopper 50 such that a distance from the fastening position to an end of the stopper 50 on the door 11 side is shorter than a distance from the fastening position to an end of the stopper 50 on the opposite side to the door 11. In other words, the fastening member fastens the stopper 50 to the rail 40 at a position closer to the door 11 side than the center of gravity of the stopper 50. This can effectively suppress the rotation of the stopper 50 due to the torque M.

As the fastening member in the 1 st aspect, a rigid member having rigidity is exemplified, and one end of the rigid member is fixed to the guide rail 40, and the other end presses the stopper body 51 of the stopper 50 from above. In this case, a position where the other end of the rigid member contacts the stopper body 51 from above becomes a fastening position. The rigid member includes, for example, an L-shaped portion, and an end of the L-shaped portion is in contact with the stopper main body 51 from above.

In addition, as the 2 nd aspect of the fastening member, a wire having one end fixed to the rail 40 and the other end fixed to the stopper main body 51 of the stopper 50 can be cited. In this case, for example, a wire may be fixed to the other end of a hook formed integrally with the stopper body 51. In this case, the position of the hook becomes the fastening position. The hook is provided on, for example, a side surface of the stopper body 51 on the side of the guide rail 40. Similarly, one end of the wire may be fixed to a hook formed integrally with the rail 40 on the rail 40 side. The length of the wire is set so that sufficient tension is applied to the wire before the stopper 50 rotates relative to the rail 40 and falls off from the rail 40, and the rotation of the stopper 50 is suppressed by the tension from the wire.

In addition, as the 3 rd aspect of the fastening member, an elastic body such as a spring having one end fixed to the guide rail 40 and the other end fixed to the stopper main body 51 of the stopper 50 can be cited. The other end of the elastic body can be fixed to, for example, a hook formed integrally with the stopper body 51, as in the case of the wire. In addition, one end of the elastic body can be fixed to a hook integrally formed with the guide rail 40. The length and elastic modulus of the elastic body are set so that sufficient tension is applied to the elastic body before the stopper 50 rotates relative to the rail 40 and falls off from the rail 40, and the rotation of the stopper 50 is suppressed by the tension from the elastic body.

(modification of guide rails)

Next, a modification of the guide rail 40 will be described.

As shown in fig. 7, the guide rail 40 may further include an engaging portion 46, and the engaging portion 46 may be positioned below the protruding portion 45 and protrude from the side portion 42 toward the wall portion 44. For example, an end portion of the wiring pressing member 90, which will be discussed later, can be latched to the latching portion 46.

As shown in fig. 8, a ceiling portion 47 extending to the outside of the rail portion 43 and a wall portion 48 extending downward from the ceiling portion 47 may be provided. In other words, the guide rail 40 may be configured such that the rail portion 43 is located closer to the side portion 42 than the end portion of the top portion 47. In this case, the locking portion 46 to which one end of the wire pressure member 90 is locked may be provided in the side portion 42, and the locking portion 49 to which the other end of the wire pressure member 90 is locked may be provided in the ceiling portion 47. By disposing the wiring and the like above the guide rail 40, the space required below the guide rail 40 can be reduced, and thus the width of the bottom portion 41 can be reduced.

As shown in fig. 9, the guide rail 40 may also serve as a part of the front cover of the automatic door apparatus 10.

(door hanger)

Next, the door hanger 20 will be described. As shown in fig. 1, the door hanger 20 is a member that is attached to the upper portion of the door main body 12 and suspended from the guide rail 40.

Fig. 10 is a perspective view showing the door hanger 20. The door hanger 20 includes: a support portion 22 having at least a side plate 221; a door pulley 21 which is positioned on the guide rail 40 side of the side plate 221, is supported by the support portion 22 so as to be rotatable along the rail portion 43 of the guide rail 40; and a bottom plate 23 connected to a lower portion of the support portion 22 and attached to an upper portion of the door main body 12. The support portion 22 and the bottom plate 23 may be integrally formed. In the example shown in fig. 10, the door hanger 20 has two door pulleys 21, but the number of the door pulleys 21 included in the door hanger 20 is arbitrary. For example, the number of the door pulleys 21 included in the door hanger 20 may be 1.

Further, the door hanger 20 includes: an anti-jump member 24 fixed to the side plate 221; and a fastener 29 that fixes the jump prevention member 24 to the side plate 221. The anti-jump member 24 is fixed to the side plate 221 so as to be located at least partially below the rail portion 43 of the guide rail 40. The anti-bounce member 24 contacts the guide rail 40 when the door main body 12 bounces upward. Therefore, the movable range of the door 11 in the vertical direction can be limited. This can prevent the door 11 from falling off the guide rail 40.

Fig. 11 is a view showing a state where the jump prevention member 24 and the fastener 29 are removed from the side plate 221. The side plate 221 is formed with a through hole 223 into which the anti-jump member 24 is inserted. In addition, a hole 224 into which the fastener 29 is inserted may be formed in the side plate 221. The anti-jump member 24 is configured to be inserted into the through hole 223 from the side opposite to the guide rail 40 and positioned below the guide rail 40.

As shown in fig. 10 and 11, the width of the portion of the side plate 221 where the through hole 223 is formed may be smaller than the width of the portion of the side plate 221 that overlaps the door pulley 21 in the horizontal direction.

Next, the anti-jump member 24 will be described in detail with reference to fig. 12 and 13. Fig. 12 is a perspective view showing the anti-jump member 24, and fig. 13 is a side view showing the anti-jump member 24. The anti-jump member 24 has: a movement restricting portion 25, a fixing portion 26, and a connecting portion 27. The movement restricting portion 25, the fixing portion 26, and the connecting portion 27 are integrally formed of metal or the like. For example, the movement restricting portion 25, the fixing portion 26, and the connecting portion 27 can be manufactured by bending a metal plate and processing the metal plate.

The movement restricting portion 25 is a portion located below the guide rail 40. The movement restricting portion 25 extends in, for example, the horizontal direction. A buffer 28 containing resin may be provided on the upper surface of the movement restricting portion 25. In this case, since the buffer portion 28 contacts the guide rail 40 when the door main body 12 is sprung up, the impact force can be reduced compared to the case where the movement restricting portion 25 contacts the guide rail 40.

The fixing portion 26 is a portion fixed to the side panel 221 on the side opposite to the guide rail 40 with respect to the side panel 221. That is, the side plate 221 is present between the movement restricting portion 25 and the fixing portion 26. The fixing portion 26 extends parallel to the side plate 221, for example.

As shown in fig. 12, the fixing portion 26 may include: a 1 st fixing part 261 which is positioned on one side of the movement restricting part 25 in the opening and closing direction D1 and fixed to the side plate 221 by a fastener 29; and a 2 nd fixing portion 262 positioned on the other side of the movement restricting portion 25 in the opening and closing direction D1 and fixed to the side plate 221 by a fastening member 29. As shown in fig. 13, when the fixing portion 26 is viewed along the opening/closing direction D1, the 1 st fixing portion 261 and the 2 nd fixing portion 262 at least partially overlap.

The connecting portion 27 is a portion that is inserted into the through hole 223 of the side plate 221 and connects the movement restricting portion 25 and the fixing portion 26. The width of the movement restricting portion 25 and the connecting portion 27 is smaller than the width of the through hole 223 of the side plate 221. The height of the assembly of the movement restricting portion 25 and the connecting portion 27 is smaller than the height of the through hole 223 of the side plate 221.

As shown in fig. 13, the connection portion 27 may include: a 1 st connecting part 271 inserted into the through hole 223 of the side plate 221 and located above the movement restricting part 25; and a 2 nd connecting part 272 connecting the 1 st connecting part 271 and the movement restricting part 25. The 1 st connecting portion 271 extends in, for example, the horizontal direction. The 2 nd connecting portion 272 includes, for example, an inclined surface inclined downward at a predetermined angle as it goes from the 1 st connecting portion 271 toward the movement restricting portion 25. By configuring the connection portions 27 using the 1 st connection portions 271 and the 2 nd connection portions 272 as described above, the anti-jump member 24 can be easily positioned with respect to the side plate 221.

Next, a method of suspending the door 11 from the guide rail 40 using the door hanger 20 including the anti-jump member 24 configured as described above will be described with reference to fig. 14 and 15.

First, the door 11 including the door main body 12 and the door hanger 20 attached to the upper portion of the door main body 12 is prepared. At this time, the anti-jump member 24 is not yet fixed to the side plate 221 of the support portion 22 of the door hanger 20. Next, as shown in fig. 14, the door hanger 20 of the door 11 is hung from the guide rail 40. Thereafter, as shown in fig. 15, the movement restricting portion 25 and the connecting portion 27 of the anti-jump member 24 are inserted into the through hole 223 of the side plate 221 from the side opposite to the guide rail 40, and the movement restricting portion 25 is positioned below the guide rail 40. Further, the fastener 29 is inserted into the hole 224 of the side plate 221 and the hole of the fixing portion 26 of the anti-jump member 24 from the side opposite to the guide rail 40, and the fixing portion 26 is fixed to the side plate 221.

In the present embodiment, since the anti-jump member 24 is fixed to the side plate 221 of the support portion 22 after the door hanger 20 is hung from the guide rail 40, the anti-jump member 24 does not interfere with the guide rail 40 during the hanging operation. Therefore, even when the vertical gap S between the door pulley 21 and the bottom plate 23 is small, the suspending operation can be performed. Therefore, the gap S can be reduced as compared with a case where the anti-jump member 24 is already fixed to the side plate 221 in the suspension work (see, for example, japanese patent application laid-open No. 6-33664), and thus the vertical dimension of the entire door hanger 20 can be reduced. This makes it possible to easily install the automatic door apparatus 10 even in a place where the vertical dimension is limited.

(modification of door hanger)

Although not shown, the fixing portion 26 may be fixed to the side plate 221 by only 1 fastener 29.

Further, although not shown, the plurality of movement restricting portions 25 may be connected to the fixing portion 26 via a plurality of corresponding connecting portions 27. In this case, a plurality of through holes 223 corresponding to the plurality of connection portions 27 may be formed in the side plate 221.

(drive mechanism)

Next, the driving mechanism 60 will be explained. As shown in fig. 1, the drive mechanism 60 includes: a drive source 61 including a motor and the like; a drive pulley 62 driven by the drive source 61; a driven pulley 66 located at a position distant from the drive pulley 62 in the opening and closing direction D1; a belt 68 wound around the drive pulley 62 and the driven pulley 66; and a belt tension adjusting portion 70 that movably supports the driven pulley 66 in the opening/closing direction D1. The belt 68 is coupled with the coupling mechanism 30 mounted to the door hanger 20. The coupling mechanism 30 includes, for example: a link fitting 31 attached to the door hanger 20; and a grip 32 fixed to the coupling fitting 31 and gripping the belt 68.

(with tension adjusting part)

Next, the belt tension adjusting unit 70 of the driving mechanism 60 will be described in detail. Fig. 16 is a perspective view showing the belt tension adjusting unit 70. The belt tension adjusting unit 70 includes: a pulley support body 76 that supports the driven pulley 66; a base 71 that slidably supports the pulley support body 76 in the opening/closing direction D1; an elastic body 82 such as a spring that applies an elastic force to the pulley support body 76; and a coupling member 80 that couples the base 71 and the elastic member 82.

The belt 68 is wound around the driven pulley 66 supported by the pulley support body 76. In this case, the pulley support body 76 is stationary relative to the base body 71 at a position where the tension applied to the pulley support body 76 from the driven pulley 66 via the driven pulley 66 is balanced with the elastic force applied to the pulley support body 76 from the elastic body 82. The coupling member 80 is configured to adjust the position of the pulley support body 76 relative to the base 71. Therefore, the tension of the belt 68 can be adjusted by sliding the pulley support body 76 relative to the base body 71 in the opening/closing direction D1 by the coupler 80.

The respective components of the belt tension adjusting unit 70 will be described in detail below.

Fig. 17 is a plan view showing the base 71. As shown in fig. 16 and 17, the base 71 includes a base plate 72 and a tension adjustment reference portion 73 connected to the base plate 72. The tension adjustment reference portion 73 is a member connected to the base plate 72 at a predetermined angle, for example, 90 ° with respect to the base plate 72. The tension adjustment reference portion 73 may have a width smaller than the width of the substrate 72.

The substrate 72 may be provided with a 1 st through hole 711, and a fixing member for fixing the belt tension adjuster 70 to a member such as the guide rail 40 may be inserted into the 1 st through hole 711. Further, a 2 nd through hole 712 into which a coupling 792 is inserted may be formed in the base plate 72, and the coupling 792 may couple the pulley support body 76 to the base plate 72 so as to be slidable in the opening and closing direction D1. In this case, as shown in fig. 17, the portion of the substrate 72 where the 2 nd through hole 712 is formed may have a shape that bulges toward the pulley support body 76 side than the portion of the substrate 72 where the 1 st through hole 711 is formed. This can prevent the coupling member 792 inserted into the 2 nd through hole 712 from interfering with members such as the guide rail 40.

For example, the substrate 72 and the tension adjustment reference portion 73 are integrally formed by bending one plate-shaped member. In this case, a connection portion 74 including a curved portion 742 that is curved at a predetermined radius of curvature may be present between the substrate 72 and the tension adjustment reference portion 73.

As shown in fig. 16, one end of the coupler 80 is fixed to the tension adjustment reference portion 73. In this case, the elastic force from the elastic body 82 is applied to the tension adjustment reference portion 73 via the coupler 80. Therefore, the tension adjustment reference portion 73 and the connection portion 74 are required to have a rigidity enough to withstand the elastic force.

As one of the methods for securing the rigidity, a method of increasing the thickness of the tension adjustment reference portion 73 is conceivable (see, for example, japanese utility model laid-open No. 6-87588). However, when the thickness of the tension adjustment reference portion 73 is increased, the size of the belt tension adjustment portion 70 in the opening/closing direction D1 increases, and the restriction on the installation location of the belt tension adjustment portion 70 increases.

In view of such a problem, as shown in fig. 16 and 17, the connecting portion 74 may include a reinforcing portion 741 having a convex shape protruding toward the pulley support body 76 side from the bent portion 742. The reinforcing portion 741 protrudes toward the center of bending (the center of a circle defining the curvature of the bent portion 742) when the plate-shaped member is bent. The reinforcing portion 741 is located, for example, in a central region in the width direction D2 of the connecting portion 74. By providing such a reinforcing portion 741, the tension adjustment reference portion 73 and the connecting portion 74 can be prevented from being deformed by the elastic force applied from the elastic body 82 via the coupler 80. Therefore, the thickness of the tension adjustment reference portion 73 can be reduced compared to the conventional art. This can reduce the size of the belt tension adjusting portion 70 in the opening/closing direction D1.

Next, the pulley support body 76 will be explained. The pulley support body 76 is a member that: the driven pulley 66 is supported and slidable in the opening/closing direction D1 with respect to the base plate 72 of the base 71.

Fig. 18 is a plan view showing the pulley support body 76. As shown in fig. 16 and 18, the pulley support body 76 includes: a housing 77 for housing the elastic body 82; a slide portion 78 which is located between the housing portion 77 and the tension adjustment reference portion 73 and slides on the base plate 72 along the opening/closing direction D1; and a fixing portion 79 located on the opposite side of the sliding portion 78 with respect to the housing portion 77 and sliding on the base plate 72 along the opening and closing direction D1. A through hole 791 into which a coupling member 792 is inserted is formed in the fixing portion 79, and the coupling member 792 couples the pulley support body 76 to the base plate 72 so as to be slidable in the opening and closing direction D1.

Preferably, the sliding portion 78 of the pulley support body 76 and the reference tension portion 73 of the base body 71 are configured such that the sliding portion 78 of the pulley support body 76 and the reference tension portion 73 of the base body 71 can at least partially overlap when viewed in the width direction D2. For example, as shown in fig. 18, a recessed portion 781 into which the tension adjustment reference portion 73 can enter is formed in an end portion of the sliding portion 78 on the tension adjustment reference portion 73 side. Therefore, the slider 78 can slide in the opening/closing direction D1 to a position where the slider 78 and the tension adjustment reference part 73 overlap when viewed along the width direction D2. The width direction D2 is parallel to the surface direction of the slide portion 78 and orthogonal to the opening/closing direction D1.

When viewed in the width direction D2, the slide portion 78 and the reference tension adjusting portion 73 can overlap each other, and the movable range of the slide portion 78 in the opening/closing direction D1 can be extended to the reference tension adjusting portion 73. Therefore, the dimension of the base plate 72 in the opening/closing direction D1 can be reduced as compared with the conventional one while sufficiently securing the movable range of the slide portion 78 in the opening/closing direction D1. This can reduce the size of the belt tension adjusting portion 70 in the opening/closing direction D1.

Further, the structure formed at the end portion of the slide portion 78 on the tension adjustment reference portion 73 side is not limited to the concave portion 781 as long as the slide portion 78 and the tension adjustment reference portion 73 can overlap when viewed in the width direction D2. For example, instead of the concave portion 781, a stepped portion may be formed at an end portion of the slide portion 78 on the tension adjustment reference portion 73 side, and the tension adjustment reference portion 73 may enter the stepped portion.

Next, the housing section 77 will be described in detail. As shown in fig. 16 and 18, the housing section 77 includes, for example: a pair of wall portions arranged at a predetermined interval in the opening/closing direction D1; and a top plate 774 connected to the pair of wall portions and mounted with the driven pulley 66. The pair of wall portions includes a 1 st wall portion 771 located on the tension adjustment reference portion 73 side and a 2 nd wall portion 772 located on the farther side from the tension adjustment reference portion 73. The elastic body 82 is located between the 1 st wall 771 and the 2 nd wall 772. Specifically, as shown in fig. 16, one end of the elastic body 82 is fixed to the 1 st wall 771.

On the other hand, the other end of the elastic body 82 is coupled to the coupler 80. For example, the coupler (80) has: a bolt 801 extending in the opening/closing direction D1; a head 802 provided at one end of the bolt 801 and locked to the tension adjustment reference portion 73; and a nut 803 provided at the other end of the bolt 801 and contacting the other end of the elastic body 82 from the 2 nd wall 772 side. By changing the position of the nut 803 in the opening/closing direction D1, the elastic force generated in the elastic body 82 can be changed, and the tension of the belt 68 can be adjusted.

An example of a method of adjusting the tension of the belt 68 is described below. As described above, one end of the elastic body 82 is fixed to the 1 st wall 771. In addition, the interval between the 1 st wall 771 and the 2 nd wall 772 is constant. Therefore, the elastic force generated at the elastic body 82 corresponds to the distance between the other end of the elastic body 82 and the 2 nd wall portion 772 in a one-to-one manner. Thus, the elastic force generated in the elastic body 82, and thus the tension of the belt 68, can be adjusted based on the distance between the other end of the elastic body 82 and the 2 nd wall portion 772.

As shown in fig. 16, a tension adjustment display 81 may be provided on a nut 803 positioned at the other end of the elastic body 82. Further, an opening 773 through which the tension adjustment display portion 81 can enter may be formed in the 2 nd wall portion 772. The tension adjustment display portion 81 is configured to be able to calculate the elastic force of the elastic body 82 based on the positional relationship between the 2 nd wall portion 772 and the tension adjustment display portion 81. The tension adjustment display 81 may be formed integrally with the nut 803, or may be a member separate from the nut 803.

Fig. 19 is an enlarged view of the tension adjustment display unit 81 according to the embodiment and members around the tension adjustment display unit. As shown in fig. 19, at least 1 step 811 may be formed at an end of the tension adjustment display portion 81 located farther from the tension adjustment reference portion 73. In other words, the end portion of the tension adjustment display portion 81 located on the farther side from the tension adjustment reference portion 73 may include at least two end surfaces (the 1 st end surface 812 and the 2 nd end surface 813) having different positions in the opening and closing direction D1. The 1 st end surface 812 is located farther from the tension adjustment reference portion 73 than the 2 nd end surface 813.

As described above, the interval between the 1 st wall portion 771 and the 2 nd wall portion 772 is constant. Therefore, when the coupler 80 is adjusted so that the 1 st end surface 812 of the tension adjustment display portion 81 is aligned with the outer surface of the 2 nd wall portion 772, the elastic force T generated in the elastic body 82 becomes a predetermined 1 st elastic force. In addition, when the coupler 80 is adjusted so that the 2 nd end surface 813 of the tension adjustment display portion 81 is aligned with the outer surface of the 2 nd wall portion 772, the elastic force T generated in the elastic body 82 becomes a predetermined 2 nd elastic force smaller than the 1 st elastic force. According to the example shown in fig. 19, the elastic force T generated in the elastic body 82, and hence the tension of the belt 68, can be easily adjusted by adjusting the coupler 80 while visually checking so that the 1 st end surface 812 or the 2 nd end surface 813 is aligned with the outer surface of the 2 nd wall portion 772.

The number of the stepped portions 811 and the number of the end faces provided in the tension adjustment display portion 81 are arbitrary. By increasing the number of the stepped portions 811 and the number of the end faces, the resolution of the elastic force T of the elastic body 82 that can be visually adjusted can be improved.

Further, the configuration formed in the 2 nd wall portion 772 is not limited to the opening portion 773 as long as the tension adjustment display portion 81 can enter. For example, a recess or a step portion into which the tension adjustment display portion 81 can enter may be formed in the 2 nd wall portion 772. In this case, the elastic force of the elastic body 82 can also be calculated based on the positional relationship between the outer surface of the 2 nd wall portion 772 and the tension adjustment display portion 81.

(drive pulley)

Next, the drive pulley 62 connected to the drive source 61 of the drive mechanism 60 via the drive shaft 611 will be described in detail. Fig. 20 is a longitudinal sectional view showing the drive pulley 62. The drive pulley 62 has a metal bushing portion 63 and a resin pulley portion 64. The metal bushing 63 is a metal member formed with a through hole into which the drive shaft 611 of the drive source 61 is inserted. The resin pulley portion 64 is a resin member that covers the metal bushing portion 63 from the outside in the radial direction of the drive shaft 611.

As shown in fig. 20, the metal bushing portion 63 has: a main body portion 631; and a neck portion 632 protruding from the side surface of the main body portion 631 toward the drive source 61 in the axial direction of the drive shaft 611. The neck portion 632 has a radius smaller than that of the body portion 631.

An end surface of the main body portion 631 of the metal bushing portion 63 in the radial direction of the drive shaft 611 is covered with the resin pulley portion 64. The drive pulley 62 including the metal bush portion 63 and the resin pulley portion 64 can be manufactured by insert molding.

Preferably, as shown in fig. 20, a gap 642 is provided between an outer surface 633 of the neck portion 632 and an end surface of the resin pulley portion 64 on the drive shaft 611 side. The gap 642 is set so that the resin pulley portion 64 does not contact the neck portion 632 even when the resin pulley portion 64 is thermally shrunk. The advantage of forming such a gap 642 will be described below.

The temperature for insert molding for producing the drive pulley 62 is high, for example, 300 ℃. In this case, when the driving pulley 62 returns to the normal temperature, thermal contraction occurs in the metal bushing portion 63 and the resin pulley portion 64. The thermal shrinkage of the resin is higher than that of the metal. Therefore, the resin pulley portion 64 may compress the metal bushing portion 63 based on the difference in the thermal shrinkage rate with respect to the drive pulley 62 returned to the normal temperature.

In the conventional drive pulley 62, as disclosed in, for example, japanese patent laid-open No. 2008-267553, the resin pulley portion 64 is in contact with the neck portion 632 of the metal bushing portion 63. Further, a portion of the resin pulley portion 64 that contacts the neck portion 632 protrudes toward the drive source 61 side compared to other portions of the resin pulley portion 64. In this case, it is considered that a portion of the resin pulley portion 64 which is in contact with the neck portion 632 is damaged by a reaction force from the metal bushing portion 63, and as a result, radially-expanding cracks are formed in the resin pulley portion 64.

In contrast, in the drive pulley 62 shown in fig. 20, the gap 642 described above is provided, whereby a compressive force can be prevented from being generated between the resin pulley portion 64 and the neck portion 632. This can prevent damage such as cracking from occurring in the resin pulley portion 64.

(Wiring pressing member)

The automatic door apparatus 10 may further include a wiring presser 90 attached to the guide rail 40 so as to cover the wiring connected to the drive source 61 of the drive mechanism 60 that drives the door 11. Fig. 21 is a perspective view showing the wiring presser 90. The wiring presser 90 has a shape extending along the opening/closing direction D1.

As shown in fig. 21, the wiring presser 90 is preferably formed with a recess 91 through which the wiring can pass. The advantage of forming the concave portion 91 in the wiring presser 90 will be described below with reference to fig. 22 and 23. Fig. 22 and 23 are diagrams for explaining an example of a method of disposing the wiring presser 90.

First, as shown in fig. 22, the wiring 96 is disposed on the rail 40. When the drive mechanism 60 is attached to the upper portion of the guide rail 40, as shown in fig. 22, a part of the wiring 96 may extend in the vertical direction on the guide rail 40. When a conventional L-shaped or U-shaped wiring presser (see, for example, japanese patent laid-open No. 2004-16907) is used, a portion of the wiring 96 extending in the vertical direction cannot be covered.

Here, in the present embodiment, the wiring presser 90 is formed with a recess 91. Therefore, as shown in fig. 23, the wire presser 90 can be provided to the guide rail 40 so that the wire 96 extending in the vertical direction passes through the recess 91. Therefore, the portion of the wiring 96 extending in the vertical direction can be covered. In addition, the wire presser 90 can be provided after the wire 96 is disposed on the guide rail 40.

The structure of the wiring presser 90 will be described in detail below. Fig. 24 is a side view showing the wiring presser 90. As shown in fig. 21 and 24, the wiring pressing member 90 may also have a 1 st portion 92, a 2 nd portion 93, and a 3 rd portion 94. The 1 st section 92, the 2 nd section 93, and the 3 rd section 94 all extend in the opening and closing direction D1. As shown in fig. 24, the 2 nd portion 93 is connected to the 1 st portion 92 at a 1 st angle θ 1 relative to the 1 st portion 92. The 3 rd portion 94 is connected to the 1 st portion 92 at a 2 nd angle θ 2 relative to the 1 st portion 92. The 2 nd portion 93 constitutes a 1 st end portion 901 in the width direction D2 of the wiring presser 90, and the 3 rd portion 94 constitutes a 2 nd end portion 902 in the width direction D2 of the wiring presser 90. The recess 91 is formed from the 1 st end 901 to the 1 st portion 92.

Preferably, the wiring presser 90 is configured so that the 1 st angle θ 1 and the 2 nd angle θ 2 are different. For example, the 2 nd angle θ 2 is larger than the 1 st angle θ 1 and is an obtuse angle. In this case, the 3 rd portion 94 is more easily displaced relative to the 1 st portion 92 than the 2 nd portion 93. This can facilitate the process of fixing the wiring presser 90 to the guide rail 40.

Fig. 25 is a view showing an example of a process of fixing the wiring presser 90 to the guide rail 40. In the example shown in fig. 25, first, the 1 st end 901 of the wiring presser 90 is fixed to the side portion 42 of the rail 40. For example, as shown in fig. 25, the 1 st end 901 of the wiring presser 90 is fitted under the protruding strip 45. Next, although not shown, the 2 nd end portion 902 of the wiring presser 90 is locked to the wall portion 44. Here, according to the present embodiment, the 3 rd portion 94 is more easily displaced with respect to the 1 st portion 92 than the 2 nd portion 93. Therefore, the 3 rd portion 94 constituting the 2 nd end portion 902 can be easily locked to the wall portion 44.

The process of fixing the wiring presser 90 to the guide rail 40 is not limited to the example shown in fig. 25. For example, first, the 2 nd end portion 902 of the wiring presser 90 may be locked to the wall portion 44, and then the 1 st end portion 901 of the wiring presser 90 may be locked to the locking portion 46 of the side portion 42 of the rail 40, or the like.

Further, the respective constituent elements (the stopper 50, the guide rail 40, the door hanger 20, the belt tension adjusting portion 70, the drive pulley 62, and the wiring pressing member 90) of the automatic door apparatus 10 are described separately, but the automatic door apparatus 10 does not need to be provided with the respective constituent elements in the above-described form. In other words, the automatic door apparatus 10 can be configured by arbitrarily combining the components of the above-described embodiments.

10. An automatic door device; 11. a door; 12. a door main body; 20. a door hanger; 21. a door pulley; 22. a support portion; 221. a side plate; 223. an opening part; 224. an aperture; 23. a base plate; 24. an anti-jump member; 25. a movement restricting section; 26. a fixed part; 261. 1 st fixed part; 262. a 2 nd fixing part; 263. an aperture; 27. a connecting portion; 271. a 1 st connecting part; 272. a 2 nd connecting part; 28. a buffer section; 29. a fastener; 30. a connecting mechanism; 31. a connecting fitting; 32. a handle; 40. a guide rail; 41. a bottom; 411. an upper plate; 412. a lower plate; 413. a hollow part; 42. a side portion; 43. a rail portion; 431. a side surface; 432. a convex portion; 44. a wall portion; 45. a protruding strip portion; 46. a card-holding section; 47. a top portion; 48. a wall portion; 50. a stopper; 51. a stopper body; 52. a 1 st leg part; 521. a side surface; 522. a recess; 53. a 2 nd leg part; 531. a side surface; 54. a recessed portion; 55. a stopper rubber; 551. a contact portion; 552. a card-holding section; 56. a fixing member; 561. the 1 st side; 562. a 2 nd side; 57. a bolt; 571. a head portion; 572. a shaft portion; 58. an anti-drop component; 60. a drive mechanism; 61. a drive source; 611. a drive shaft; 62. a drive pulley; 63. a metal bushing portion; 631. a main body portion; 632. a neck portion; 633. an outer surface; 64. a resin pulley portion; 641. a lower surface; 642. a gap; 66. a driven pulley; 68. a belt; 70. a belt tension adjusting section; 71. a substrate; 72. a substrate; 73. a tension adjustment reference part; 74. a connecting portion; 741. a reinforcing portion; 76. a pulley support body; 77. a storage section; 771. a 1 st wall part; 772. a 2 nd wall portion; 773. an opening part; 774. a top plate; 78. a sliding part; 781. a recess; 79. a fixed part; 791. a through hole; 792. a connecting piece; 80. a connecting piece; 801. a bolt; 802. a head portion; 803. a nut; 81. a tension adjustment display unit; 82. an elastomer; 90. a wiring pressing member; 901. 1 st end part; 902. a 2 nd end portion; 91. a recess; 92. part 1; 93. part 2; 94. part 3; 96. wiring; d1, opening and closing direction.

Claims (14)

1. An automatic door device, comprising:

a guide rail which guides the door in an opening and closing direction; and

a stopper that is a stopper mounted to the rail, and that contacts the door to limit movement of the door in the opening and closing direction to a predetermined position,

the automatic door device is provided with a retaining member configured to resist a torque for rotating the stopper about a central axis of a portion of an end portion of the stopper on the opposite side of the door, the portion being in contact with the guide rail,

the stopper has a 1 st leg portion and a 2 nd leg portion protruding downward and a recessed portion formed between the 1 st leg portion and the 2 nd leg portion,

the guide rail has a bottom portion and a rail portion having a convex shape protruding upward from the bottom portion, the rail portion being located in the recessed portion and contacting the stopper,

the convex-shaped portion of the rail portion is in contact with the concave portion from below and in contact with the 1 st leg portion,

the coming-off prevention member includes: a recess provided in the 1 st leg portion of the stopper; a convex portion provided at the convex portion of the rail portion of the guide rail and fitted into the concave portion, or,

the coming-off prevention member includes: a concave portion provided in the convex portion of the rail portion of the guide rail; a projection provided on the 1 st leg of the stopper and fitted into the recess,

the automatic door device further includes a drive mechanism for driving the door,

the drive mechanism includes:

a driven pulley located at a position distant from a driving pulley of a driving source in the opening and closing direction;

a belt wound around the drive pulley and the driven pulley; and

a belt tension adjusting portion that supports the driven pulley so as to be movable in the opening/closing direction,

the belt tension adjusting portion includes:

a substrate;

a pulley support body that is attached to the base body so as to be slidable in the opening/closing direction with respect to the base body, and that supports the driven pulley;

an elastic body that applies an elastic force corresponding to a tension of the belt to the pulley support body; and

a coupling member that couples the elastic body and the base member,

the base body comprises a base plate and a tension adjusting reference part, the tension adjusting reference part is connected with the base plate and is used for fixing the connecting piece,

the pulley support body includes: a housing portion for housing the elastic body; and a sliding portion which is located between the housing portion and the tension adjustment reference portion and slides on the substrate along the opening/closing direction,

the tension adjustment reference portion and the sliding portion are configured to be capable of at least partially overlapping when viewed in a width direction that is parallel to a surface direction of the sliding portion and orthogonal to the opening/closing direction,

the housing section of the pulley support body includes a pair of wall sections disposed at an interval in the opening/closing direction,

the elastic body is located between the pair of wall portions,

the belt tension adjusting portion further includes a tension adjustment display portion located at an end portion of the elastic body,

an opening, a recess, or a step portion into which the tension adjustment display portion can enter is formed in one of the pair of wall portions that is located on a side farther from the tension adjustment reference portion,

at least 1 step portion is formed at an end portion of the tension adjustment display portion located on a side farther from the tension adjustment reference portion.

2. Automatic door apparatus according to claim 1,

the concave portion and the convex portion extend in the opening and closing direction.

3. Automatic door apparatus according to claim 2,

when the recessed portion is provided in the 1 st leg portion of the stopper, a lower surface of the recessed portion of the 1 st leg portion of the stopper and an upper surface of the convex portion of the rail at least partially overlap in a vertical direction,

when the convex portion is provided in the 1 st leg portion of the stopper, an upper surface of the convex portion of the 1 st leg portion of the stopper and a lower surface of the concave portion of the guide rail at least partially overlap in a vertical direction.

4. Automatic door apparatus according to any one of claims 1 to 3,

the anti-drop member fixes the stopper to the guide rail at a position offset from the center of gravity of the stopper.

5. Automatic door apparatus according to any one of claims 1 to 3,

the coming-off prevention part includes a fastening member for fastening the stopper at a fastening position with respect to the guide rail,

the distance from the fastening position to the end of the stopper on the door side is shorter than the distance from the fastening position to the end of the stopper on the opposite side to the door.

6. Automatic door apparatus according to any one of claims 1 to 3,

the automatic door device further comprises a door hanger mounted on an upper portion of the door body of the door and suspended from the guide rail,

the door hanger has: a side plate having a through hole formed therein; a door pulley which is located on the side of the guide rail with respect to the side plate and rotates along the guide rail; and an anti-jump member fixed to the side plate and located at least partially below the guide rail,

the anti-jump member is configured to be inserted into the through hole of the side plate from a side opposite to the guide rail and to be positioned below the guide rail.

7. Automatic door apparatus according to claim 6,

the anti-jump member includes: a movement restricting section located below the guide rail; a fixing portion fixed to the side plate on a side opposite to the guide rail; and a connecting portion inserted into the through hole of the side plate and connecting the movement restricting portion and the fixing portion.

8. Automatic door apparatus according to claim 7,

the fixing portion includes: a first fixing portion which is located on one side of the movement restricting portion in the opening/closing direction and is fixed to the side plate by a fastener; and a 2 nd fixing portion which is located on the other side of the movement restricting portion in the opening and closing direction and is fixed to the side plate by a fastener,

the 1 st fixing portion and the 2 nd fixing portion at least partially overlap when the fixing portion is viewed in the opening/closing direction.

9. Automatic door apparatus according to claim 7 or 8,

the connecting portion includes: a 1 st link portion inserted into the through hole of the side plate and located above the movement restricting portion; and a 2 nd connecting part connecting the 1 st connecting part and the movement restricting part,

the 1 st connecting part, the 2 nd connecting part, and the movement restricting part of the connecting part are integrally configured.

10. Automatic door apparatus according to claim 1,

a recess or a step into which the reference tension adjusting portion can enter is formed at an end of the sliding portion on the reference tension adjusting portion side.

11. Automatic door apparatus according to claim 1,

the base body further includes a convex reinforcing portion that connects the base plate and the tension adjustment reference portion and protrudes toward the pulley support body side.

12. Automatic door apparatus according to claim 11,

the base plate, the reinforcing portion, and the tension adjustment reference portion are integrally formed by bending one plate-shaped member,

the convex shape of the reinforcing portion protrudes toward a curved center side of the plate-like member.

13. Automatic door apparatus according to any one of claims 1 to 3,

the automatic door device further includes a driving pulley coupled to a driving source of a driving mechanism for driving the door,

the drive pulley has: a metal bushing portion formed with a through hole into which a drive shaft of the drive source is inserted; and a resin pulley portion that covers the metal bush portion from outside in a radial direction of the drive shaft,

the metal bushing portion includes a main body portion and a neck portion that protrudes from a side surface of the main body portion to a position closer to the drive source side than an end surface of the resin pulley portion in an axial direction of the drive shaft,

a gap is provided between the outer surface of the neck portion and the resin pulley portion.

14. Automatic door apparatus according to any one of claims 1 to 3,

the automatic door device further includes a wire presser attached to the guide rail so as to cover a wire connected to a drive source of a drive mechanism for driving the door,

a recess or an opening through which the wiring can pass is formed in a part of the wiring presser.

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