JP2002129828A - Folding door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folding door device capable of reducing the manufacturing cost and facilitating parts management and construction. SOLUTION: A hinge body 21 is mounted on a pair of door bodies 12a and 12b of folding door bodies 11a and 11b integrally foldable by rotatably connecting the opposed inner end sides of the door bodies 12a and 12b to each other. A traveling body 41 is mounted on a guide rail 62. The hinge body 21 is connected to the traveling body 41 to horizontally rotatably connect the traveling body 41 to the folding door bodies 11a and 11b, and the folding door bodies 11a and 11b are openably and closably guided by the guide rail 62. The traveling body 41 is surface-symmetric to both planes having nodal lines crossing at right angles and parallel to the vertical direction. The traveling body 61 is usable without having lateral and longitudinal limitations. Accordingly, the manufacturing cost can be reduced, and the part management can be facilitated. The traveling body 41 can be mounted on the guide rail 62 regardless of mounting direction. The mounting of the folding door bodies 11a and 11b on the guide rail 62 can be easily carried out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding door apparatus in which opposing inner ends of a pair of doors are rotatably connected to be able to be integrally folded.

[0002]

2. Description of the Related Art Hitherto, this type of folding door apparatus has been used as a door for opening and closing the front of a storage space for furniture such as a clothes wardrobe and a closet.
A configuration described in Japanese Patent No. 6079 is known.

The folding door device described in Japanese Patent Application Laid-Open No. Hei 2-26679 is provided with a folding door body which is rotatably connected to opposing inner ends of a pair of door bodies so as to be integrally foldable. A guide rail that supports the folding door body and guides the folding doors to open and close integrally is attached to the folding door body. Further, a base is fixed to the outer end side of each door body, and a connecting member is provided on the base so as to be horizontally rotatable via a hinge body. Further, the connecting member is provided with a traveling member that travels on the guide rail, and a connecting portion that detachably connects each connecting member of each door body that is close to each other when the doors are most opened when both door bodies are most folded. I have. And a traveling body is comprised by a traveling member and a connection member. The traveling body is attached to at least one of the upper and lower portions of each door body of the folding door body.

[0004] When the two doors of the folding door are most open and folded, the connecting portions of the traveling bodies mounted on the outer ends of the two doors integrally connect the outer ends of the two doors. . For this reason, when the folding door body is moved along the guide rail in a state where the folding door body is opened, that is, in a state where the pair of door bodies are integrally folded, the folded tip of the folding door body is held. Even when moving, the traveling body does not become oblique to the guide rail.

[0005]

However, in the folding door apparatus described above, a fitting hole is formed in a central area near one end of the connecting member of the traveling body in order to connect the traveling body to the door body. ing. Then, a fixing screw is inserted through the fitting hole, and the fixing screw is fixed to the hinge body, thereby connecting these connecting members and the hinge body. In addition, a traveling body is attached to each of the upper portions on the opposite outer end sides of each door body of the folding door body. For this reason, the shape of the connecting member differs depending on which door the connecting member of the traveling body is attached to. Therefore, left and right are generated, and a pair of traveling bodies having left and right symmetrical interlocking members must be manufactured, so that parts management is complicated and manufacturing cost is not easily reduced.

[0006] Further, since there is a front-rear direction, when this traveling body is mounted on a guide rail by mistake in the mounting direction of the traveling body, the traveling body is once removed from the guide rail, and these traveling bodies are again mounted on the guide rail. Must be attached to. For this reason, there is a problem that construction when attaching the folding door body to the front of the furniture is not easy.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a folding door apparatus in which manufacturing costs are reduced and parts management and construction are easy.

[0008]

According to a first aspect of the present invention, there is provided a folding door device comprising: a pair of doors; A guide rail that guides openably and closably, a traveling body that runs at the guide rail and that is plane-symmetric with respect to each of two planes that intersect at right angles and has an intersection line that is parallel to the vertical direction, and the traveling body and the folding body And a hinge body which connects the first and second members so as to be rotatable in the horizontal direction.

In this configuration, hinges are attached to the doors of the folding doors, which are rotatably connected to the inner ends of the pair of doors so as to be integrally foldable, and run on the guide rail. Attach body. Next, a hinge body is connected to the traveling body, the traveling body and the folding door body are connected so as to be rotatable in the horizontal direction, and the folding door body is guided by the guide rail so that the folding door body can be opened and closed. At this time, since the traveling body is plane-symmetric with respect to each of the two planes which intersect at right angles and has an intersection line parallel to the vertical direction, there is no so-called left-right or front-rear preference of the traveling body.
Therefore, even when the mounting position of the traveling body with respect to each door body of the folding door body is different, a traveling body having the same shape is sufficient, so that it is not necessary to manufacture traveling bodies having different shapes. Therefore,
Manufacturing costs can be reduced, and parts management becomes easier. Further, since the mounting direction of the traveling body with respect to the guide rail is eliminated, there is no need to attach the traveling body to the guide rail. For this reason, the hinge body attached to each door body of the folding door body is connected to the traveling body attached to the guide rail, and the construction when attaching the folding door body to this guide rail becomes easy.

According to a second aspect of the present invention, there is provided a folding door body in which opposing inner ends of a pair of door bodies are rotatably connected to be integrally foldable, and the folding door body is guided to be openable and closable. A guide rail, a traveling member that travels in the guide rail, and a connecting member that is plane-symmetric with respect to each of two planes that intersect at right angles and that have an intersection line that is parallel to the vertical direction, and that is attached to the traveling member. The vehicle includes a traveling body, and a hinge body that connects the connecting member of the traveling body and the folding door body to be rotatable in a horizontal direction.

In this configuration, hinges are attached to the doors of the folding doors which are rotatably connected to each other at the inner ends of the pair of doors so as to be integrally foldable and run on the guide rail. Attach the running member of the body. Next, a hinge body is connected to the connecting member of the traveling body, the traveling body and the folding door body are connected so as to be rotatable in the horizontal direction, and the folding door body is guided by the guide rail so that the folding door body can be opened and closed. At this time, the connecting member of the traveling body is plane-symmetric with respect to each of the two planes which intersect at right angles and has an intersection line parallel to the vertical direction. Therefore,
Even in the case where the connecting position of the connecting member of the traveling body to each door body of the folding door body is different, a traveling body of the same shape is sufficient, so that it is not necessary to manufacture traveling bodies of different shapes. Therefore, the manufacturing cost can be reduced, and the parts management becomes easy. Further, since the mounting direction of the traveling body with respect to the guide rail is eliminated, there is no need to attach the traveling body to the guide rail. For this reason, the hinge body attached to each door body of the folding door body is connected to the connecting member of the traveling body attached to the guide rail, and construction when attaching the folding door body to this guide rail becomes easy.

According to a third aspect of the present invention, there is provided a folding door body which is rotatably connected to opposite inner ends of a pair of doors so as to be integrally foldable, and guides the folding door so that it can be opened and closed. A guide rail, a traveling member that travels in the guide rail, and a connecting member that has a pair of connecting portions respectively provided at line-symmetrical positions with respect to a center line between opposite sides attached to the traveling member. Traveling body equipped with,
A hinge connected to one of the pair of connecting portions and connecting the traveling body and the folding door so as to be rotatable in a horizontal direction.

[0013] In this configuration, hinges are attached to the doors of the folding doors, which are rotatably connected to each other at the inner ends of the pair of doors so as to be integrally foldable, and run on the guide rail. Attach the running member of the body. Next, a hinge body is connected to one of the pair of connecting portions of the connecting member of the traveling body, and the traveling body and the folding door body are connected so as to be rotatable in the horizontal direction, and the folding door body can be opened and closed by the guide rail. Guide to At this time, the pair of connecting portions are provided at symmetrical positions with respect to the center line between the opposing sides of the connecting member. For this reason, this pair of connecting portions has no so-called left-right and front-rear options. Therefore, even when the mounting positions of the pair of connecting portions of the connecting member of the traveling body with respect to each door body of the folding door body are different, since the same shape of the coupling member is sufficient, it is not necessary to manufacture a traveling body having a different shape. .
Therefore, the manufacturing cost can be reduced, and the parts management becomes easy. Further, since the mounting direction of the traveling body with respect to the guide rail is eliminated, there is no need to attach the traveling body to the guide rail. As a result, when one of the pair of connecting portions of the connecting member of the traveling body attached to the guide rail is connected to the hinge body attached to each door body of the folding door body, when the folding door body is attached to this guide rail. Construction becomes easy.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of a first embodiment of the folding door apparatus according to the present invention will be described below with reference to FIGS.

1 to 9, reference numeral 1 denotes furniture, and the furniture 1 is, for example, a clothes ward or a closet. As shown in FIGS. 1 and 2, the furniture 1 includes a top plate 2, a bottom plate (not shown), left and right side plates 4a and 4b, and a back plate (not shown). The side plates 4a and 4b and the back plate form an accommodation space 6 opened forward.

Further, as shown in FIGS. 1 and 2, a plurality of, for example, two folding door bodies 11a and 11b are attached to the furniture 1. These folding door bodies 11a and 11b close the front of the storage space 6 of the furniture 2 so that they can be opened and closed by the folding door bodies 11a and 11b. These folding door bodies 11a and 11b have a pair of vertically long plate-like door bodies 12a and 12b, respectively, and opposing inner ends of the door bodies 12a and 12b are rotatably connected by hinges (not shown). Then, it can be folded together so that the rear sides are aligned. Here, this hinge is
What can elastically hold the state where both door bodies 12a and 12b were extended in parallel is good.

Further, the door body 12a to which the hinge is attached
Hinges 13 that allow the doors 12a and 12b to turn in the horizontal direction are provided between the outer end of the door 12b and the side plates 4a and 4b of the storage space 6 of the furniture 1. Installed.

As shown in FIG. 3 to FIG. 8, an upper hinge body 21 is attached to upper portions of the folding door bodies 11a and 11b on the opposite outer end sides of the respective door bodies 12a and 12b. The hinge body 21 includes a base 22 fixed to each of the door bodies 12a and 12b.
And a support member 24 supported on the base 22 so as to be horizontally rotatable via a hinge mechanism 23.

The base 22 is embedded in the recessed grooves 14a, 14b provided on the rear surfaces of the doors 12a, 12b and at positions shifted inward from the outer ends of the doors 12a, 12b. Has 25. And in this base cup 25,
From the upper and lower edges of the base cup 25, mounting pieces 27 which are mounted on the rear surfaces of the door bodies 12a and 12b by fixing screws 26 respectively protrude.

The hinge mechanism 23 includes a first link arm.
28 and a second link arm 29. One end of each of the first link arm 28 and the second link arm 29 is attached to a base 22 embedded in the doors 12a and 12b.
It is rotatably mounted on the shaft by a and 30b. Further, the other end of each of the first link arm 28 and the second link arm 29 is rotatably mounted on a support member 24 attached to a traveling member 42 to be described later by support shafts 31a and 31b.

Further, the support member 24 includes a support plate 32 having a substantially U-shaped vertical cross section which is swingably supported on the base 22 via a hinge mechanism 23. Also this support plate
The mounting plate 33 is formed on the support plate 32 at a right angle from the support plate 32. The first link arm 28 and the second link arm 28
29 is rotatably supported in parallel by support shafts 31a and 31b.

In the center area of the back surface of the support plate 32 in the width direction, a concave groove 33a is formed along the longitudinal direction. At the tip of the support plate 32, a notch 35 cut out in a long hole shape along the longitudinal direction is formed, and at a position separated from the notch 35 toward the base end side of the bottom surface at a predetermined interval. Is provided with a screw insertion hole 37 having an inner diameter dimension through which the fixing screw 36 can be inserted. Also, this screw insertion hole
37 has a notch 38 cut into a long hole shape toward the base end side of the bottom surface. Here, this notch 38
It has substantially the same shape as the notch 35.

A traveling body 41 traveling on a guide rail 62 described later is attached to the support plate 32. The running body 41 slides in the guide rail 62 along the longitudinal direction and runs, and the doors 12a, 11b of the folding door bodies 11a, 11b opposed to each other by the hinge body 21 attached to the running member 42. A connection member 43 is connected to 12b so as to be rotatable in the horizontal direction.

The connecting member 43 is made of synthetic resin, and is formed into a shape which is plane-symmetric with respect to each of the two planes P1 and P2 having a line of intersection L intersecting at right angles and parallel to the vertical direction. Also,
Fitting grooves 44 having a substantially concave cross section along the horizontal direction are formed on both side surfaces of the connecting member 43 facing each other.
The fitting grooves 44 have the same shape as each other, and a convex portion 45 projecting along the longitudinal direction is formed in a central region in the width direction.

A pair of screw holes 46 as connection portions are formed at positions separated by a predetermined distance along the longitudinal direction of the convex portion 45 of each fitting groove portion 44. These screw holes
The reference numerals 46 are provided at symmetrical positions with respect to the center line between the opposing sides. Here, this screw hole 46
When the concave groove portion 33a of the support plate 32 of the support member 24 is fitted into the convex portion 45 of one of the fitting groove portions 44, it communicates with the cutout portions 35 and 38 of the support plate 32, respectively.

Further, a through hole 47 penetrating along the vertical direction is formed in the center of the connecting member 43 in the horizontal direction. An adjustment bolt 48 as an engagement portion is rotatably inserted into the through hole 47 from below, and a substantially disk-shaped head 49 formed at the base end of the adjustment bolt 48 is attached to the through hole 47.
Is slidably locked at the lower opening edge of the. Further, at the upper ends on both sides of the connecting member 43 located above the fitting groove 44, grooves 50 cut out in a concave groove shape in the horizontal direction are respectively formed.

A screw groove (not shown) is formed at the tip of the adjusting bolt 48 rotatably inserted from below the through hole 47 of the connecting member 43. In addition, this adjustment bolt 48
The running member 42 is attached to the tip of the. At the center of the lower surface of the running member 42, a female screw (not shown) is threaded. The running member 42 is connected to the connecting member 43 by screwing the female screw and a thread groove at the tip of the adjustment bolt 48.

Further, the running member 42 is formed in a shape which is plane-symmetric with respect to each of the two planes P1 and P2 having a line of intersection L which intersects at right angles and is parallel to the vertical direction. Also, the traveling member 42
A plurality of, for example, four rollers 52 are rotatably mounted on the front and rear sides of a plate-shaped holder 51, and a connecting protrusion 53 projecting downward from both ends of the holder 51 is provided with a connecting member. 43 grooves 50
Respectively. Here, the vertical position of the door body 12 can be adjusted by rotating the adjusting bolt 48 to adjust the vertical position of the connecting member 43 with respect to the holder 51.

Further, projecting pieces 55 projecting from each other in the longitudinal direction of the holder 51, that is, both end faces in the running direction of the holder 51 when the holder 51 is mounted on the guide rail 62, are formed. At the tips of the projecting pieces 55, shaft holes 56 penetrating in the vertical direction are respectively formed. Rollers 57 are provided in these shaft holes 56.
A shaft body 58 serving as a rotation shaft of is inserted from below to fix the roller 57 rotatably in the horizontal direction. The roller 57 slides in contact with the inner surface of the guide rail 62.

The doors 12a, 12b of the folding doors 11a, 11b
When the housing space 6 of the furniture 1 is closed by the folding door bodies 11a and 11b, the folding door bodies 11
A connecting body 61 for positioning and fixing a and 11b is attached.

Here, a guide rail 62 is attached along the lower edge of the front end of the top plate 2 of the furniture 1. The guide rail 62 has a substantially U-shaped cross section, and a rail groove 63 for rotatably fitting the roller 52 of the traveling body 41 is provided inside, and a guide groove 64 for moving the holder 51 is provided at the center of the lower surface. A roller receiving surface 65 that supports the lower surface of each roller 52 is provided on both side edges of the guide groove 64. Further, the inner surface of the rail groove 63 of the guide rail 62 rotatably fits the roller 57 of the traveling body 41. Therefore, the folding door attached to furniture 1
The doors 12a and 12b of 11a and 11b are
Is suspended and supported by the traveling body 41 which is hooked.

Further, a plurality of, for example, two traveling bodies 41 are attached to the guide rail 62. As shown in FIGS. 3 to 5, the support plate 32 of the support member 24 is fitted in a fitting groove 44 located on the left side of the traveling body 41, as shown in FIGS. Is attached. As shown in FIGS. 6 to 8, the support plate 32 of the support member 24 is fitted in a fitting groove 44 located on the right side of the traveling body 41, as shown in FIGS. Is attached.

Next, the assembling operation of the first embodiment will be described.

First, the side plates 4a, 4b of the accommodation space 6 of the furniture 1
And the doors 12a, 12b adjacent to the side plates 4a, 4b are connected by hinges 13, respectively.

Next, a predetermined number of, for example, two traveling bodies 41 are fitted from one end of the guide rail 62 into the rail groove 63 of the guide rail 62 so as to be able to travel. In this state, the guide rail 62 is attached to the lower surface of the top plate 2 of the accommodation space 6 of the furniture 1.

Further, each door body 12a, 1 of each folding door body 11a, 11b.
The base cup 25 of the hinge body 21 is embedded in the embedding grooves 14a, 14b on the rear surface on the inner end side of the inner body 2b.
Is fixed to each door body 12a, 12b with a fixing screw 26.

Thereafter, the folding body 11a attached to the left side of the accommodation space 6 in the front view is lifted, and the support plate 32 of the hinge body 21 attached to the folding door body 11a is attached to the guide rail 62 on the left side in the front view. 41 is fitted into the fitting groove 44 on the right side of the connecting member 43. In this state, the hinge body 21 and the traveling body 41 are connected by inserting the fixing screws 36 into the screw insertion holes 37 and screwing these fixing screws 36 into the respective screw holes 46.

Similarly, the folding body 11b attached to the right side of the accommodation space 6 in the front view is lifted, and the support plate 32 of the hinge body 21 attached to the folding door body 11b is attached to the right side of the guide rail 62 in the front view. 41 is fitted into the fitting groove 44 on the left side of the connecting member 43. In this state, the hinge body 21 and the traveling body 41 are connected by inserting the fixing screws 36 into the screw insertion holes 37 and screwing these fixing screws 36 into the respective screw holes 46.

Then, the height of each folding door body 11a, 11b with respect to the accommodation space 6 is corrected by rotating the adjustment bolt 48 attached to the connecting member 43 of the traveling body 41.

Further, by adjusting the mounting position of the support plate 32 of the hinge body 21 with respect to the screw hole 46 of the traveling body 41, the mounting position of each folding door body 11a, 11b with respect to the accommodation space 6 is corrected.

Next, the operation of the first embodiment will be described.

First, in a state where the storage space 6 is closed by the folding door bodies 11a and 11b, the door bodies 12a and 12b of the folding door bodies 11a and 11b are held by hinges in a state of being extended in parallel, and these folding door bodies 11a and 11b are held. 11b are arranged in parallel to completely close the front surface of the storage space 6 of the furniture 1.

Then, as shown in FIG. 9, for example, while operating to pull out the left door body 12a to the near side,
An operation is performed so that the outer edge of the left door 12a is moved toward the right door 12b. Then, the rollers 52, 57 of the traveling body 41 of the left door body 12a move along the rail groove 63 of the guide rail 62, and the accommodation space 6 is opened.

At this time, the doors 12a and 12b are integrally opened and pivoted about the support shafts 30a and 30b of the hinge 21 of the doors 12a and 12b, and the base 22 is connected to the first link arm 28.
And it opens and rotates via the second link arm 29. As a result, the first link arm 28 and the second link arm 29 gradually move and extend forward, and the base 22 is pushed forward while being opened and rotated together with the door body 12a.

Further, the folding door bodies 11a and 11b are moved toward the right side so that the rear surfaces of both door bodies 12a and 12b are aligned with each other via a central hinge and are integrally folded, so that the storage space 6 on the left side of the folding door body 11b. The front of is open.

Further, as the doors 12a and 12b of the folding doors 11a and 11b are closed and rotated, the first link arm 28 and the second link arm 29 are gradually movably contracted rearward, and the base 22 is closed.
The front side of the housing space 6 is closed by being pulled backward while being closed and rotated.

As described above, according to the first embodiment, for example, the left door 12a is operated to be pulled out to the near side, and the outer edge of the left door 12a is moved to the right door. Operate so as to approach body 12b. Then, the rollers 52 and 57 of the hinge body 21 of the left door body 12a move along the guide rail 62, and the support shaft 30 of the hinge body 21 of each door body 12a and 12b.
The two door bodies 12a and 12b are integrally opened and rotated about the a and 30b as fulcrums, and the folding door body 11b is connected to the two door bodies 12a and 12b via a central hinge.
Can be folded toward the right side so that the rear faces of the storage space 6 are aligned with each other, so that the front surface of the storage space 6 can be opened to the left of the folding door body 11b.

Each of the traveling member 42 and the connecting member 43 of the traveling body 41 is formed in a plane-symmetrical shape with respect to each of the two planes P1 and P2 having an intersection line L intersecting at right angles and parallel to the vertical direction. This eliminates the so-called left and right hand and front and rear hand of the traveling body 41.

As a result, the door bodies 12a, 12b of the folding door bodies 11a, 11b
Can be attached to the screw holes 46 of any of the fitting grooves 44 of the traveling body 41. Therefore, the traveling body with respect to the guide rail 62 and the hinge body 21
There is no need to pay attention to the mounting orientation of 41. For this reason, since the traveling body 41 having the same shape is sufficient, it is not necessary to manufacture the so-called right and left traveling bodies 41 having different shapes, so that the production cost can be reduced and the parts management can be facilitated.

Further, when mounting the traveling body 41 in the rail groove 63 of the guide rail 62, it is not necessary to pay attention to the mounting direction of the traveling body 41 with respect to the guide rail 62. Therefore, since the mounting error of the traveling body 41 to the guide rail 62 does not occur, there is no need to reattach the traveling body 41. For this reason, the hinges 21 attached to the doors 12a, 12b of the folding doors 11a, 11b are connected to each traveling body 41 attached to the rail groove 63 of the guide rail 62, and the guide rail 62
When the folding door bodies 11a and 11b are suspended, the installation work, that is, the construction can be easily performed.

Then, projecting pieces 55 are formed on both end surfaces of the holder 51 of the traveling body 41 in the longitudinal direction, respectively.
Since the roller 57 is rotatably fixed to the horizontal direction 55, the roller 57 contacts the inner surface of the rail groove 63 of the guide rail 62 when the traveling body 41 travels along the rail groove 63 of the guide rail 62. And slide. As a result, each folding door body 11a, 1
When opening and closing the accommodation space 6 in 1b, the force F of the traveling body 41 moving toward the width direction of the rail groove 63 of the guide rail 62 can be absorbed by the rollers 57 of the traveling body 41. Therefore, when opening and closing the storage space 6 with each folding door body 11a, 11b, movement of each door body 12a, 12b can be performed smoothly.

Further, the notch portions 35 and 38 of the support plate 32 of the hinge body 21 are formed in the shape of long holes, so that the fixing screws 36 screwed into the screw holes 46 of the connecting member 43 of the traveling body 41.
And the support plate 32 can be moved along the fitting groove portion 44 with respect to the connecting member 43. This allows
Each door body 12 of each folding door body 11a, 11b with respect to the guide rail 62
a, 12b can be adjusted.

Next, the configuration of the second embodiment of the present invention will be described with reference to FIGS.

The folding door apparatus shown in FIGS. 10 to 13 is basically the same as the folding door apparatus shown in FIGS. 1 to 9 except that both planes P1 having an intersection line L intersecting at a right angle and parallel to the vertical direction. Connecting members that are not plane-symmetric with respect to P2 and P2 respectively
In FIG. 43, a traveling body 41 is formed.

As shown in FIG. 10, the connecting member 43 is formed by pressing a single metal plate material. The part 72 is protruded downward. Further, on both sides of the rear surface 72 in the horizontal direction, side surfaces 73 and 74 projecting in a direction parallel to the direction in which the upper surface 71 protrudes from the rear surface 72 are provided.

Further, a through hole 75 penetrating along the vertical direction is formed substantially in the center of the upper surface 71. The adjusting bolt 48 is inserted into the through hole 75 from below, and the tip of the adjusting bolt 48 is connected to the traveling body 41. Further, a pair of screw holes 76 as connection portions are formed at positions on both side surfaces 73 and 74 separated by a predetermined distance in the horizontal direction. The screw holes 76 are respectively provided at line-symmetric positions with respect to the center line between the opposing side surfaces 73 and 74.

The screw holes 76 are located at line-symmetric positions with respect to a vertical line perpendicular to the horizontal center of the side surfaces 73 and 74, or at positions equidistantly separated from the line-symmetric positions. Is formed. Further, the fixing plate 36 is connected to the screw holes 76 by screwing the fixing screws 36 through cutouts 35 and 38 formed in the supporting plate 32 of the hinge body 21.

As described above, according to the second embodiment, the screw holes 76 are respectively formed at positions symmetrical with respect to the center line between the opposing side surfaces 73 and 74 of the connecting member 43. Therefore, by rotating the connecting member 43 with respect to the traveling member 42 about the adjustment bolt 48, the hinge body 21 and the connecting member 43 can be connected with one of these screw holes 76. For this reason, since the connecting member 43 does not have left-right or front-back operation, the same operation and effect as those of the folding door apparatus shown in FIGS. 1 to 9 can be obtained.

Further, since the connecting member 43 is formed by pressing one metal plate, the manufacturing of the connecting member 43 becomes easier and the manufacturing cost can be further reduced.

In each of the above embodiments, the hinge 21
Hinge 13 on the outer end side of the door body 12b facing the side where the
In the above, the so-called fixed door connected to the side plates 4a and 4b of the accommodation space 6 of the furniture 1 has been described. However, the present invention is not limited to such a configuration, and the outer end of the door body 12b on the side facing the hinge body 21 is described. Even if the door is not connected to the side plates 4a and 4b of the furniture 1, that is, a so-called free door, the same operation and effect as those of the above embodiments can be obtained.

Further, the configuration in which the screw holes 76 are provided at positions symmetrical with respect to the center line between the opposing side surface portions 73 and 74 has been described, but the pair of screw holes 76 are provided at positions symmetrical with respect to the intersection line L. Alternatively, even if a large number of pairs of screw holes 76 are formed,
The same operation and effect as the embodiment can be obtained.
For this reason, for example, as shown in FIG.
, A screw hole (not shown) is formed at a point M on the side surface portion 73 at an evenly spaced position from the screw holes 76, and a side portion 74 symmetrical with respect to the intersection line L is formed. A screw hole (not shown) may be formed above.

[0062]

According to the folding door apparatus of the first aspect, since the traveling body is plane-symmetric with respect to each of the two planes which intersect at right angles and has an intersection line parallel to the vertical direction, the traveling body has a so-called right and left hand and Since there is no need for front and rear, even if the mounting position of the traveling body with respect to each door body is different, it is sufficient to use the traveling body of the same shape, so that it is possible to reduce the manufacturing cost, simplify parts management, and Since the mounting direction of the traveling body is lost, there is no need to reattach the traveling body to the guide rail, and the construction when attaching the folding door body to the guide rail can be facilitated.

According to the folding door device of the second aspect, the connecting member of the traveling body is plane-symmetric with respect to each of the two planes which intersect at right angles and have a line of intersection parallel to the vertical direction. And since there is no selfishness,
Even in the case where the connecting member is attached to each door at a different position, a traveling body having the same shape is sufficient, so that the manufacturing cost can be reduced and parts management can be facilitated.
Since the mounting direction of the traveling body with respect to the guide rail is eliminated, there is no need to reattach the traveling body to the guide rail, and construction when attaching the folding door body to the guide rail can be facilitated.

According to the folding door device of the third aspect, the pair of connecting portions of the connecting member of the traveling body are made line-symmetric with respect to the center line between the opposing sides of the connecting member. Since the so-called right and left hand and front and rear hand of the part are eliminated, even if the mounting positions of the pair of connecting parts to each door body are different, the connecting member of the same shape is sufficient, so that the manufacturing cost can be reduced and the part management can be performed. Since it is easy to perform, and since the mounting direction of the traveling body with respect to the guide rail is lost, there is no need to reattach the traveling body to the guide rail, and the construction when attaching the folding door body to the guide rail can be facilitated.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment of a folding door apparatus according to the present invention.

FIG. 2 is a plan view showing a part of the folding door device.

FIG. 3 is a rear view showing a state in which a hinge body is attached to the right side of the traveling body of the folding door device.

FIG. 4 is a top view showing the traveling body and the hinge body.

FIG. 5 is a side view showing the traveling body and the hinge body.

FIG. 6 is a rear view showing a state where a hinge body is attached to the left side of the traveling body.

FIG. 7 is a top view showing the traveling body and the hinge body.

FIG. 8 is a side view showing the traveling body and the hinge body.

FIG. 9 is an explanatory view showing a part of a state where the folding door body is opened by the traveling body and the hinge body.

FIG. 10 is a perspective view showing a connecting member according to a second embodiment of the present invention.

FIG. 11 is a rear view showing a traveling body and a hinge body of the folding door device.

FIG. 12 is a top view showing the traveling body and the hinge body.

FIG. 13 is a side view showing the traveling body and the hinge body.

[Explanation of symbols]

 11a, 11b Folding door body 12a, 12b Door body 21 Hinge body 41 Traveling body 42 Traveling member 43 Connecting member 46, 76 Screw hole as connection 62 Guide rail L Intersecting line P1, P2 Plane

Claims (3)

[Claims] 1. A folding door body which is rotatably connected to inner ends of a pair of doors and is rotatable integrally, and a guide rail which guides the folding door so that it can be opened and closed. A traveling body running on the guide rail, and a hinge body connecting the traveling body and the folding door body so as to be rotatable in a horizontal direction, the plane being symmetrical with respect to each of two planes having a line of intersection parallel to the vertical direction; A folding door device comprising: 2. A folding door body which is rotatably connected to inner ends of a pair of doors so as to be rotatable integrally, a guide rail which guides the folding door so that it can be opened and closed, and a guide rail. A traveling member having a connecting member mounted on the traveling member, the traveling member having a connecting member attached to the traveling member, the traveling member traveling inside the traveling member, and two planes each intersecting at a right angle and having an intersection line parallel to the vertical direction. And a hinge body for connecting the connecting member to the folding door body so as to be rotatable in a horizontal direction. 3. A folding door body which is rotatably connected to opposing inner ends of a pair of door bodies so as to be integrally foldable, a guide rail for guiding the folding door body to be openable and closable, and this guide rail. A traveling member having a connecting member having a pair of connecting portions provided at a line symmetrical position with respect to a center line between both opposing sides attached to the traveling member, and A folding door device, comprising: a hinge body connected to one of the pair of connecting portions and connecting the traveling body and the folding door body to be rotatable in a horizontal direction.