JP5351509B2 - Folding door device - Google Patents

Description

  The present invention relates to a folding door device that opens and closes an opening by folding or unfolding a folding door.

Conventionally, this type of invention includes a folding door (folding door 1) that opens and closes when folded or unfolded, such as that described in Patent Document 1, and a guide that guides the opening and closing operation of the folding door. A mechanism (guide rail 6, suspension vehicle 10 and the like), an inspection cover (decorative cover 57) covering the guide mechanism from the door thickness direction side, and a door contact member (door) receiving the folding door from the door thickness direction side when fully closed There is a folding door device with 59).
According to this conventional folding door device, the inspection cover (decorative cover 57) is removed, and the guide mechanism and the like can be inspected and maintained.

However, in the conventional structure, every time the folding door (folding door 1) is fully closed, an impact caused by the full closing is applied to the base of the inspection cover (the decorative cover 57). Further, even when a person or an object leans against or comes into contact with the folding door in the fully closed state, the pressing force at that time is applied to the base of the inspection cover. Therefore, there is a possibility that the inspection cover and the door stop member may be detached from the upper frame or damaged.
Therefore, it is proposed that the inspection cover is firmly fixed to the upper frame. However, in this case, the inspection cover is deteriorated and the maintenance performance is deteriorated. It needs some ingenuity.
JP 2008-31788 A

  The present invention has been made in view of the above-described conventional circumstances, and a problem to be solved by the present invention is to provide a folding door device that can prevent the inspection cover from being removed or damaged due to an impact and also has good maintainability. There is to do.

Technical means for solving the above problems include a folding door, an upper frame provided above the folding door, a guide mechanism provided on the upper frame for guiding the opening / closing operation of the folding door, and the guide mechanism. In the folding door device provided with an inspection cover that covers from the door thickness direction side and a door contact member that receives the folding door from the door thickness direction side when fully closed, the upper frame is a main body portion fixed to an immobile site; A support piece portion that is fixed to the main body portion and supports the guide mechanism, wherein the door stop member is fixed to the support piece portion of the upper frame, and the inspection cover is detachable from the main body portion. It is characterized by being fixed to
According to this configuration, the door stop member is fastened to the support piece portion of the upper frame, and the inspection cover is detachably fastened to the main body, so that when the folding door comes into contact with the door stop member, etc. Impact and pressing force are not easily transmitted to the inspection cover. Therefore, it is possible to prevent the fixing part of the inspection cover from being detached or damaged, and to maintain the detachability of the inspection cover well.

In a further technical means, the folding door is configured to be foldable in one and the other in the door thickness direction, and the door contact member is detachably secured to the lower end side of the support piece. And
According to this configuration, for example, in an emergency, the door stop member can be removed, and the folding door can be opened in a direction opposite to the door thickness direction. Moreover, since the door stop member can be attached and detached, the maintainability is also improved.

In a further technical means, the door stop member includes an elastic portion made of an elastic material and receiving the folding door in the door thickness direction, and a rigid portion made of a rigid material and supporting the elastic portion, and the rigid portion is The inspection cover is detachably fastened to the lower end side of the support piece portion of the upper frame, and the inspection cover engages with the main body portion of the upper frame in a substantially hanging manner, and its lower end side is detachable from the rigid portion. It is characterized by being fixed to
According to this configuration, the impact when the folding door is fully closed can be effectively buffered by the elasticity of the elastic portion, and if the elastic portion and the rigid portion are removed from the support piece portion, the folding door is bent in the opposite direction and closed. It can be operated. In addition, the inspection cover is firmly attached via the rigid portion and also has good detachability.

In a further technical means, the folding door rotates about a first door body that rotates with a base shaft portion as a fulcrum and a pivot portion provided on the door end side of the first door body as a fulcrum. And the door stop member is provided so as to receive a range straddling the pivot portion from the vicinity of the base shaft portion in the folding door when fully closed. .
According to this configuration, when the folding door is fully closed, the door contact member abuts over a range extending from the vicinity of the base shaft portion of the folding door to the pivotal support portion. Therefore, compared with the case where the door stop member is provided locally in the door width direction, for example, the impact force received by the door stop member can be dispersed in the door width direction, and thus the inspection cover and the door stop member are fixed. It is possible to more effectively prevent detachment, deformation, breakage, and the like.

Since the present invention is configured as described above, the following effects can be obtained.
Since the structure is such that the impact when fully closed is not easily transmitted to the inspection cover, the inspection cover can be prevented from being removed or damaged, and the inspection cover can be attached and detached, and the maintenance is also good.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
This folding door device A guides the folding door 10 that opens and closes the opening in the width direction (left and right according to FIG. 1) by being folded or unfolded, and the opening operation of the folding door 10 on its upper side. A guide mechanism 20, a closing assist mechanism 30 for assisting the closing operation of the folding door 10, a frame body 40 surrounding the folding door 10 from the left and right direction sides and the upper side, an inspection cover 51 covering the guide mechanism 20 from the door thickness direction side, 52 and a door contact member 60 that receives the guide mechanism 20 when fully closed from the door thickness direction side (see FIGS. 1 to 3).
The direction in which the folding door 10 is bent (in other words, the direction in which the folding door 10 is folded) is normally the first side (in the illustrated example, the indoor side) as shown in FIG. In the event of an emergency or the like, the second side (in the illustrated example, the outdoor side), which is the opposite side to the first side, may be used.

The folding door 10 includes a first door body 11 that can be rotated in both directions around a base shaft portion 1 of a stationary part (a floor surface, an upper frame, and the like in the illustrated example), and the first door body 11. A second door body 12 that can be pivoted in both directions with the pivot point 2 on the door-end side as a fulcrum, and a bi-directional rotation with the pivot point 3 on the door-end side of the second door body 12 as a fulcrum. It consists of a movable third door body 13.
In the first door body 11, the rotation direction with the base shaft portion 1 as a fulcrum is normally the first side (inner side according to FIG. 6), and in an emergency, the second direction is the second side. It can also be on the side (outdoor side according to FIG. 6).
In the second door body 12, the pivoting direction with the pivotal support 2 as a fulcrum is normally the second side (outdoor side according to FIG. 6), and in an emergency, the first direction is the first door. It is also possible to be on the side (inner side according to FIG. 6).
Further, the third door body 13 rotates relative to the second door body 12 but is maintained so as not to rotate with respect to the frame body 40.

  The first door body 11 is a door body that forms a door-side portion of the folding door 10. The first door body 11 can be rotated in both directions with the base shaft portion 1 as a fulcrum. However, according to the illustrated example, the door door member 60 restricts the rotation to the outdoor side.

  The base shaft portion 1 includes a door butt side suspension wheel 1a provided on the upper frame 43 of the frame body 40 and a rotation support member 1b provided on the floor surface.

The door-side suspension wheel 1a includes a roller 1a1 that is fixed to a guide rail 21 (described later) so as to be able to roll at least a predetermined amount, a support bracket 1a2 that rotatably supports the roller 1a1, and a steadying member 4. (See FIGS. 2 and 3).
The actual amount of movement of the door-side suspension wheel 1a is a part of the full width of the folding door 10 (for example, about 20 to 30 mm). In other words, according to the folding door device A of the present embodiment, for example, a door-side suspension wheel 1a is provided so that a person or an object or the like leans against the closed folding door 10 and the folding door 10 is not opened. Thus, after the folding door 10 is slid by a predetermined amount to the opening direction side in the opening width direction (left direction side according to FIG. 6), the folding door 10 can be bent.

The support bracket 1a2 is mounted so as to rotate around a shaft portion 1a3 protruding upward from the upper end portion of the first door body 11. An anti-sway member 4 is provided on the side of the support bracket 1a2.
The shaft portion 1a3 is inserted into the reinforcing bracket 1a4 fixed to the support piece portion 43b of the upper frame 43 in a loose fit.

The steadying member 4 includes a roller 4a that fits into the concave groove 21b2 of the guide mechanism 20 and is rotatable about the vertical axis, and a bracket 4b that rotatably supports the roller 4a (see FIG. 3). .
The steady rest member 4 fits the roller 4a into the concave groove 21b2 of the guide rail 21 in a state where the roller 4a cannot move upward and cannot move in the door thickness direction, so that the roller 1a1 can be removed from the protrusion 21b1 of the guide rail 21. Prevent from coming off.

Further, according to the example shown in FIG. 3, the reinforcing bracket 1 a 4 is formed in an L-shaped cross section, and fixes one piece portion to the support piece portion 43 b of the upper frame 43 and an opening formed in the other piece portion. The shaft portion 1a3 is loosely inserted into the long hole 1a41 in the width direction.
According to this reinforcing bracket 1a4, the first door body 11 can be moved by a predetermined amount in the opening width direction by the long hole 1a41, and is also in a direction substantially perpendicular to the opening width direction (right and left according to FIG. Direction) is suppressed.

  Further, the rotation support member 1b (see FIG. 1) is rotatable on the base end side of the lower end of the first door body 11, and moves in the width direction of the opening by a predetermined interval (for example, about 40 mm). It is a well-known mechanism to support.

  The second door body 12 is connected to the door end side of the first door body 11 via the pivotal support portion 2 and rotates relative to the first door body 11 during the opening / closing operation. The rotation direction of the second door body 12 is opposite to the rotation direction of the first door body 11.

The third door body 13 is connected to the door tip side of the second door body 12 via the pivotal support portion 3 and rotates relative to the second door body 12 during the opening and closing operation, thereby immobilizing a portion ( The frame body 40, the floor surface, etc.) are maintained in a non-rotating state. That is, the third door body 13 is maintained in a state substantially parallel to the upper frame 43 of the frame body 40 during the opening / closing operation.
The rotation direction of the third door body 13 relative to the second door body 12 is opposite to the rotation direction of the second door body 12.

  The guide mechanism 20 includes a guide rail 21 fixed to the upper frame 43 so as to extend in the width direction of the opening (left and right according to FIG. 1), and a third guide rail 21 so as to move along the guide rail 21. A door-side suspension wheel 22 attached to the upper end of the door body 13 is provided (see FIG. 2).

The guide rail 21 is a long member having a substantially L-shaped cross section composed of a fastening piece portion 21a and a receiving piece portion 21b, and is fixed over substantially the entire length of the upper frame 43 (see FIG. 2).
Further, a full-open stopper 25 that keeps the folding door 10 in a fully open state is mounted on the door bottom side of the guide rail 21.

The receiving piece portion 21b has a protrusion 21b1 that protrudes upward so as to receive the door-side suspension wheel 1a and the door-end suspension vehicle 22 on the protruding end side in the door thickness direction (the right end side according to FIG. 3). This protrusion 21b1 is provided continuously over the longitudinal direction of the guide rail 21.
Further, the receiving piece portion 21b has a concave groove 21b2 into which the steady rest member 4 is loosely fitted on the base end side in the door thickness direction (left end side according to FIG. 3). The receiving piece portion 21 b is continuously provided over the longitudinal direction of the guide rail 21.

  The door-end side suspension wheel 22 supports one or a plurality of (two in the illustrated example) rollers 22a that can roll along the door-end side suspension wheel 22 and supports the rollers 22a in a freely rolling manner. And a support bracket 22b (see FIG. 2) fixed to the upper end of the door body 13. The support bracket 22 b is fixed so as not to rotate with respect to the third door body 13.

  The fully open stopper 25 (see FIG. 2) is a piece-like member that is fixed to the door bottom side of the guide rail 21 and can be elastically bent. When the folding door 10 is in the fully open state, the upper end of the third door body 13 is The support bracket 22b is latched, and the latched state is released by elastically bending.

  Further, the closing assist mechanism 30 has a flexible long member 31 (for example, a metal wire or the like) fastened to the support bracket 22b at the upper end of the third door body 13 and a door tip side of the upper frame 43. A reel device 32 that is fixed and winds the other end of the flexible long member 31 and a brake device 33 that relaxes the closing operation speed of the folding door 10 are provided (see FIG. 2).

  The reel device 32 is a device that attempts to wind up the flexible long member 31 around a rotating drum by an urging force of an urging member (for example, a spring spring).

  The braking device 33 includes a rack gear-shaped engaging member 33a fixed to the upper frame 43 in the opening width direction, a pinion gear-shaped rotating body 33b that meshes with the engaging member 33a, and the rotating body 33b. The rotary damper device 33c provides resistance to rotation in one direction and is attached to the support bracket 22b at the upper end of the third door body 13 to reduce the closing operation speed of the folding door 10.

  Therefore, according to the closing assist mechanism 30, when the folding door 10 in the fully opened state is removed from the fully opened stopper 25, the third door body 13 is pulled by the flexible long member 31 of the closing assist mechanism 30. Will be closed. The closing speed at that time is appropriately limited by the braking device 33.

  The frame body 40 includes side frames 41 and 42 on the door bottom side and the door tip side, and an upper frame 43 extending between the upper ends of the side frames 41 and 42.

  The upper frame 43 is fixed to a stationary part (for example, upper ends of the left and right side frames 41 and 42, a ceiling of a building, a wall surface, and the like), and the guide mechanism 20 is fixed to the main body 43a. (See FIG. 3).

The main body 43a is a substantially flat plate member extending in the width direction of the opening (left and right according to FIG. 1), and both longitudinal ends thereof are upper ends of the left and right side frames 41 and 42 via brackets or the like. It is fixed to.
At both ends in the width direction of the main body 43a, grooves 43a1 bent into a substantially V shape are formed so as to extend in the width direction of the opening. The groove 43a1 is for hooking an upper end portion of an inspection cover 51 (or 52) described later.

The support piece 43b is fixed to the main body 43a by fixing means such as welding. The guide mechanism 20 and the door stop member 60 are fixed to the support piece 43b.
More specifically, as shown in FIG. 3, the support piece 43b includes a guide support 43b1 fixed in a suspended manner to the main body 43a, and a door thickness direction (from the lower end of the guide support 43b1). The door stop support 43b2 extending in the horizontal direction (according to FIG. 3) and the reinforcing piece 43b3 extending upward from the front end side (the left end side according to FIG. 3) of the door stop support 43b2 are integrally formed. .

  The guide support portion 43b1 is a substantially flat portion extending in the opening width direction (the left-right direction according to FIG. 1), and the guide rail 21 is fixed to the surface thereof.

  The door stop support part 43b2 is a part formed by bending the lower end side of the guide support part 43b1 in the door thickness direction, and the door stop member 60 is detachably fastened to the lower end surface thereof. According to the illustrated example, the means for making the door contact member 60 detachable with respect to the door contact support portion 43b2 is screwed, but it can also be fitted or other means.

  The reinforcing piece 43b3 is a part formed by bending the front end side of the door support part 43b2 upward, and mainly acts to increase the rigidity of the support piece part 43b in the width direction of the opening to prevent bending.

  The inspection covers 51 and 52 are fixed to the main body 43a having the above-described configuration, and the door stop member 60 is fixed to the support piece 43b.

One inspection cover 51 is a substantially flat member disposed so as to cover the guide mechanism 20 and the support piece 43b from one side in the door thickness direction (in the illustrated example, the outdoor side).
On the upper end side of the inspection cover 51, a latching portion 51a that is bent so as to be latched in the groove 43a1 of the upper frame 43 is provided.
In addition, a fastening portion 51b that is bent in the door thickness direction is provided on the lower end side of the inspection cover 51. The fastening portion 51b is detachably fastened to the lower end surface of the door stop member 60 by fastening tools such as screws and bolts.

The other inspection cover 52 is a substantially flat member disposed so as to cover the guide mechanism 20 from the other side in the door thickness direction (in the illustrated example, the indoor side).
On the upper end side of the inspection cover 52, a latching portion 52a that is bent so as to latch in the groove 43a1 of the upper frame 43 is provided.
Further, the lower end side of the inspection cover 51 is bent into a substantially L shape, and the end side portion in the opening width direction is fixed to the upper frame 43 via a bracket or the like.

According to an example shown in FIG. 3, the door stop member 60 includes an elastic part 61 made of an elastic material and receiving the folding door 10 in the door thickness direction, and a rigid part 62 made of a rigid material and supporting the elastic part 61, The rigid portion 62 is detachably secured to the lower end side of the support piece portion 43b in the upper frame 43.
And this door stop member 60 is provided so that the range which straddles the pivot part 2 from the vicinity of the base shaft part 1 in the folding door 10 when fully closed, and also straddles the bending suppression apparatus 24 mentioned later may be provided.
The door contact member 60 may be provided at least in the vicinity of the deflection suppressing device 24. However, in a preferred example of the present embodiment, the impact received from the folding door 10 is provided so as to continuously receive the range. Are appropriately dispersed.

  The elastic portion 61 is a long member that is formed in a hollow shape in a vertical cross section, for example, from rubber or an elastic synthetic resin material and extends in the width direction of the opening, and pivots from the vicinity of the base shaft portion 1 in the folding door 10 when fully closed. It is provided so as to receive a range straddling the support part 2 and further straddling a bending suppression device 24 described later.

The rigid portion 62 is a long member that is formed in a substantially U-shaped longitudinal section by bending a metal plate material, and faces the folding door 10 surface in the door thickness direction. On the lower end side of the surface, a concave groove 62a for fitting the elastic portion 61 is formed across the opening width direction.
The upper surface of the rigid portion 62 is detachably attached to a door stop support portion 43b2 at the lower end of the support piece portion 43b of the upper frame 43 by a fastener such as a screw or a bolt.
Further, a fastening portion 51b on the lower end side of the inspection cover 51 is fastened to the lower end surface of the rigid portion 62 by a fastening tool such as a screw or a bolt.
The rigidity of the rigid portion 62 is suitably adjusted according to the thickness, shape, material, or the like, and is preferably set to be higher than at least the rigidity of the inspection cover 51.

  Moreover, between the folding door 10 of the said structure and the upper frame 43, the kicking-out apparatus 23 which guides the 2nd door body 12 at the time of opening operation | movement to a door thickness direction (in other words, bending direction), or the folding door 10 A bending suppression device 24 or the like that suppresses the bending of the fully closed state is provided (see FIG. 4).

  The kicking-out device 23 includes a convex portion 23a fixed to the upper end of the folding door 10 and a receiving member 23b that hooks the convex portion 23a when fully closed and guides the convex portion 23a in an oblique door thickness direction during an opening operation.

  The convex part 23a is fastened to the upper end of the second door body 12 in the folding door 10 by fastening tools such as screws and bolts, and the projecting end side is directed upward.

  On the lower half side of the receiving member 23b, it is formed in a substantially concave groove shape so as to guide the convex portion 23a that moves when the folding door 10 is opened and closed. The parallel passage 23b1 that comes into contact with the convex portion 23a from the indoor side (lower side according to FIG. 4) when closed, and the convex portion 23a obliquely on the indoor side (lower left downward side according to FIG. 4) when the folding door 10 is opened. ) And an inclined passage 23b2 for guiding to).

The parallel passage 23b1 is a passage that is arranged substantially parallel to the width direction of the opening, and on the outdoor side (upper side according to FIG. 4), an opening that allows the protrusion 23a to move to the outdoor side. A portion 23b3 is provided.
The inclined passage 23b2 is a passage that is continuous with the parallel passage 23b1 and extends obliquely toward the indoor side (left obliquely downward side according to FIG. 4), and has a convex portion 23a at the end on the extending direction side. Is provided with an opening 23b4 that enables movement to the indoor side.

The deflection suppressing device 24 includes a convex portion 24a fixed to the upper end of the folding door 10 and a receiving member 24b that latches the convex portion 24a when fully closed.
And this bending suppression apparatus 24 is arrange | positioned rather than the kicking-out apparatus 23 in the opening part width direction, and is preventing the folding door 10 at the time of a fully closed being bent indoors.
This bending suppression device 24 effectively suppresses bending of the folding door 10 particularly when the opening width of the folding door 10 is relatively wide (for example, 900 mm or more). Therefore, when the opening width by the folding door 10 is comparatively small, you may make it omit the bending suppression apparatus 24. FIG.

  The convex portion 24a is fastened to the upper end of the second door body 12 in the folding door 10 by a fastening tool such as a screw or a bolt, and is attached to a location on the door bottom side of the convex portion 23a of the kicking device 23. The protruding end side is directed upward. For this convex portion 24a, parts common to the convex portion 23a of the kicking-out device 23 are used.

The receiving member 24b includes a contact piece 24b1 that comes into contact with the convex portion 24a from the indoor side (lower side according to FIG. 4) when the folding door 10 is fully closed, and a notch 24b2 that is opened in the corresponding piece 24b1. Have.
More specifically, the receiving member 24b is formed by bending a plate-like member into an L-shaped cross section so that a substantially vertical piece portion facing downward is used as the contact piece portion 24b1. A cutout portion 24b2 for allowing the convex portion 24a to pass through is formed in the portion 24b1.

Next, the characteristic effect of the folding door apparatus A having the above configuration will be described in detail.
First, in the fully closed state of the folding door 10, the convex portion 23a at the upper end of the second door body 12 is located in the parallel passage 23b1 of the receiving member 23b, and the convex portion 24a at the upper end of the second door body 12 is The receiving member 24b is positioned so as to be able to contact the contact piece 24b1 from the outdoor side (upper side according to FIG. 4).
In addition, the folding door 10 in the fully closed state is positioned so as to be able to contact the door stop member 60 from the indoor side (lower side according to FIG. 4).
Therefore, even if the external force in the door thickness direction is applied to the fully closed folding door 10 from the outdoor direction side or the indoor direction side due to, for example, a person or an object leaning on or colliding with the folding door 10. Can be prevented from bending in the door thickness direction.

  In addition, when the third door body 13 on the door end side in the folding door 10 in the fully closed state is pulled in the door bottom direction (left direction according to FIGS. 4 and 6), the second door body 12 is drawn. After the convex portion 23a at the upper end moves slightly in the door bottom direction, the convex portion 23a is guided to the inside of the slanting room (downwardly slanting left in FIG. 4) by the slant passage 23b2. And with the operation | movement, after the convex part 24a of the 2nd door body 12 upper end moves a little in the door butt direction, it passes the notch part 24b2 to the room inner side.

  Therefore, the folding door 10 moves the three door bodies 11, 12, 13 slightly in the direction of the door bottom as a whole, and then moves between the first door body 11 and the second door body 12 on the indoor side (see FIG. 4 and FIG. 6, the opening operation is performed by bending downward. During the opening operation, the third door body 13 is maintained in a state substantially parallel to the opening width direction.

Further, when the folding door 10 in the fully opened state is closed, the third door body 13 is pulled in the door end direction (right direction according to FIGS. 4 and 6), thereby the first door body 11 and The angle between the second door bodies 12 gradually increases. Then, just before the folding door 10 is fully closed, the convex portions 23a and 24a at the upper end of the second door body 12 are fitted into the receiving members 23b and 24b, respectively.
When the folding door 10 is fully closed, the upper end side portion of the folding door 10 comes into contact with the door stop member 60. The impact at the time of this contact is absorbed by the elastic deformation of the elastic part 61 of the door stop member 60.

As described above, when a person or an object hangs on or collides with the folding door 10 in the fully closed state, or when the folding door 10 is closed to the fully closed state, the upper end side portion of the folding door 10 is It contacts the door stop member 60.
When the impact at the time of contact is not completely absorbed by the elastic deformation of the elastic portion 61 of the door stop member 60, the impact is mainly received by the support piece portion 43b having a strong structure in the upper frame 43. Therefore, the impact of the impact on the inspection cover 51 is small.
Moreover, according to a preferred example of the present embodiment, since the door contact member 60 receives a range straddling the pivotal support portion 2 from the vicinity of the base shaft portion 1 in the folding door 10, the impact force is set in the door width direction (FIG. 4 and FIG. It is possible to disperse substantially uniformly in the horizontal direction of FIG.
Therefore, it is possible to effectively prevent the inspection cover 51 from being detached or deformed by the impact force.

  Also, the outdoor inspection cover 51 and the indoor inspection cover 52 can be easily attached and detached. For example, the inspection cover 51 is removed without removing the door contact member 60, and the upper end portion of the folding door 10 and the upper frame 43 are removed. Inspection and maintenance for the inside is possible.

  Further, when it is desired to open the folding door 10 by folding it to the outdoor side in an emergency or the like, the inspection cover 51 is first removed, and the door contact member 60 is further removed. By doing in this way, the folding door 10 can be opened to the outdoor side as shown by a two-dot chain line on the upper half side in FIG.

  In addition, according to the said embodiment, although the folding door 10 was comprised by three door bodies 11, 12, and 13, as another example, you may make it comprise a folding door by two or four or more door bodies. .

  Moreover, according to the said embodiment, although it was set as the structure which provides the single door stop member 60 with respect to the upper frame 43, as another example, the some door stop member 60 arranged in the opening part width direction with respect to the upper frame 43 is provided. It is also possible to provide. In this case, it is preferable to provide a plurality of door contact members 60 over a range extending from the vicinity of the base shaft portion 1 to the pivot portion 2 in the folding door 10 when fully closed.

  Further, according to the above embodiment, only the drive source (reel device 32) for the closing operation is provided. However, as another example, a mode in which a drive source for the closing operation and the opening operation is provided, or It is good also as an aspect which provided the drive source only of operation | movement, the aspect which does not comprise a drive source but opens and closes the folding door 10 manually.

  Other examples of the mechanism for opening and closing the folding door 10 include a mode in which the folding door 10 is opened and / or closed by a linear motor, and the folding door 10 is opened and / or opened by a biasing force of a biasing member such as a coil spring. Alternatively, a mode in which the folding door 10 is opened or closed by tilting the guide rail 21 can be used.

It is a front view which shows an example of the folding door apparatus which concerns on this invention. It is the principal part front view of the state which removed the inspection cover in the folding door apparatus, (a) shows the state which closed the folding door, (b) shows the state which opened the folding door fully. It is a principal part longitudinal cross-sectional view which shows the door bottom side part in the folding door apparatus. It is the figure which looked at the folding door of a fully closed state from the upper side. It is a disassembled perspective view of the folding door apparatus. It is a schematic diagram which shows the opening / closing operation | movement of the folding door apparatus.

Explanation of symbols

10: folding door 11: first door body 12: second door body 13: third door body 20: guide mechanism 21: guide rail 40: frame body 41, 42: side frame 43: upper frame 43a: main body 43b: Supporting piece parts 51, 52: Inspection cover 60: Door contact member 61: Elastic part 62: Rigid part

Claims (4)

A folding door, an upper frame provided above the folding door, a guide mechanism provided on the upper frame for guiding the opening / closing operation of the folding door, an inspection cover for covering the guide mechanism from the door thickness direction side, In the folding door device provided with a door contact member that receives the folding door from the door thickness direction side,
The upper frame has a main body portion fixed to a stationary part, and a support piece portion fixed to the main body portion and supporting the guide mechanism,
The door stop member is fixed to the support piece of the upper frame,
The inspection cover is fixed to the main body so as to be detachable. The folding door is configured to be bendable in one and the other in the door thickness direction,
The folding door device according to claim 1, wherein the door stop member is detachably fixed to a lower end side of the support piece portion. The door stop member includes an elastic portion made of an elastic material and receiving the folding door in the door thickness direction, and a rigid portion made of a rigid material and supporting the elastic portion, and the rigid portion of the support piece portion of the upper frame. Removably fastened to the lower end,
2. The folding door according to claim 1, wherein the inspection cover engages with the main body portion of the upper frame in a substantially hanging manner, and a lower end side thereof is detachably secured to the rigid portion. apparatus. The folding door includes a first door body that rotates with a base shaft portion as a fulcrum, and a second door body that rotates with a pivot portion provided on the door end side of the first door body as a fulcrum. Equipped,
The said door stop member is provided so that it may receive in the range which straddles the said pivotal support part from the vicinity of the said base shaft part in the said folding door when fully closed. Folding door device.

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