JPH08177361A - Expansion restricting device for folding door - Google Patents

Abstract

PURPOSE: To reduce the size of a guide means regardless of hanging travel type or ground travel type, and ensure each door section of a door body to be sequentially expanded smoothly and properly, starting from a section at a hanging position. CONSTITUTION: A plurality of door sections 7 are jointed in zigzag around a vertical axial center via hinge means 8 in such a state as freely foldable, thereby forming a door body 6. Furthermore, the lower sections of every other means 8 are respectively fitted with a travel means 13 moving along a guide rail 5. A guided member to be guided with a guide rail 5 for preventing each door section 7 in an expanded state from being not bent, is provided in the vicinity of the means 8 having no travel means 13, and guide means 14 to 17 for guiding each guided member are provided, so as to sequentially fold each of the sections 7 starting at the side of a hanging position in the vicinity thereof for folding the door body 6, and sequentially expand the sections 7 starting at the side of a door stopper for the expansion of the door body 6. In addition, restriction means 18 and 19 are laid, so as to prevent the door section 7 nearer the hanging position than the guided member from moving to the door stopper at the time of the entry of thereof into the guide rail 5 via the means 14 to 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding door extension restricting device in which a plurality of door bodies constituting a door body are pivotally attached by a hinge means in a zigzag manner about a vertical axis center. When the door is extended, each door body folded in a zigzag shape in the vicinity of the suspension base side can be sequentially extended from the door stop side.

[0002]

2. Description of the Related Art For folding doors installed at doorways, show windows, etc., a plurality of door bodies are hinged as described in Japanese Utility Model Publication No. 2-4234 and Japanese Utility Model Publication No. 5-96365. Due to this, the door body is constructed by pivotally pivoting around the vertical axis in a zigzag manner, and when folding the door body, each door body is sequentially folded in the zigzag shape from the hanging base side near the hanging base side. When extending the door main body, there is one in which each door body is sequentially extended from the door stop side.

Each of the conventional folding doors is of a hanging traveling type, and is provided with a guide rail on the upper part thereof, and at every other hinge means of the door body, a traveling means for traveling along the guide rail is provided. Provided in the vicinity of the hinge means having no traveling means or in the door body is a guided member that is guided by a guide rail so that each of the extended door bodies does not bend, and each member is provided in the vicinity of the hanging side when the door body is folded. Guide means for guiding each guided member is provided so that the door body is sequentially folded from the suspension base side and, when extended, each door body is sequentially extended from the door contact side.

When the door body is folded, each guided member is kicked out of the guide rail by the guide means in the vicinity of the hanging base side, and each door contact side is sequentially folded in a zigzag shape from the hanging base side. Further, when the door main body is extended, the guided member guides each guided member into the guide rail so that each door body is sequentially extended from the door contact side.

[0005]

However, the conventional folding door has a drawback that the guide means largely projects to the side of the guide rail. That is, when the door body is folded, it does not cause any other problem, but when the door body is extended, the guided member located far away from the hinge means provided with the traveling means is directly guided by the guide means and guided into the guide rail. Since it is configured as described above, it is necessary to provide the guide means so as to largely project laterally from the guide rail.

Therefore, in both the suspension traveling type and the ground traveling type, the suspension base side becomes large, and in the case of the ground traveling type in which the guide rail and the guide means are provided on the ground side, There is a problem that the guide means that largely protrudes to the side from the guide rail is an obstacle, and if the guide means is clogged with mud or the like after a long time, it becomes impossible to guide. In view of the above conventional problems, the present invention can downsize the guide means regardless of whether it is a hanging traveling type or a ground traveling type, and moreover, each door body of the door body is smoothly and reliably sequentially from the hanging side. An object of the present invention is to provide a control device for extending a folding door that can be extended.

[0007]

According to the present invention as set forth in claim 1, a plurality of door bodies 7 are pivotally attached to each other by hinge means 8 so as to be foldable in zigzag shape around the vertical axis center to form a door body 6. Then, every other hinge means 8 is provided with a traveling means 13 that travels along the guide rail 5, and in the vicinity of the hinge means 8 without the traveling means 13, each of the extended door bodies 7 is prevented from bending. Guided member guided by guide rail 5
12 is provided, and when the door body 6 is folded, each door body 7 is sequentially folded from the hanging base side in the vicinity of the hanging base side, and when extended, each guided body 7 is sequentially extended from the door stop side so as to be guided. In a folding door provided with guiding means 14, 15, 16, 17 for guiding the member 12, when the guided member 12 enters the guide rail 5 via the guiding means 14, 15, 16, 17, the guided member 12 is guided. Further, restriction means 18, 19 for restricting the door body 7 on the suspension base side from moving toward the door stop side are provided.

According to a second aspect of the present invention, in the first aspect of the invention, the door body closer to the suspension base than the guided member 12 is provided.
Engagement members 78 and 83 that rotate integrally with the door body 7 are provided in the vicinity of the suspension base side of 7, and the guided member 12 is provided on the fixed side including the guide rail 5 when the door body 6 is extended. , 15,16,17 to engage the door member 7 on the hanging side of the guided member 12 around the hinge means 8 and 11 to rotate the door body 7 on the hanging side of the guided member 12 on the hanging source side. 78,83 is locked, and when the guided member 12 is inside the outer ends of the guide means 14,15,16,17, the passage of the engaging member 78,83 in the longitudinal direction of the guide rail 5 is prevented. The allowable restricting members 77 and 84 are provided.

[0009]

According to the first aspect of the present invention, when the door body 6 is extended from the folded state, the traveling means 13 is caused to travel along the guide rails 5 and the door bodies 7 are hinged means 8 and 11 respectively.
Rotate around and extend. Then, each guided member 12
Is guided into the guide rail 5 by the riser guide means 16 and 17, and the door bodies 7 are locked so as not to be bent via the guided members 12. When the door body 6 is extended, the restricting means 18, 19 restrict the movement of the door body 7 closer to the suspension side than the guided members 12, and the hinge means 8, 11 are rotated around the hinge shafts 22, 26. While rotating, the guided members 12 are guided to the guiding means 14, 15, 16, 17
I will guide you to. The guided member 12 is guided by the guiding means 14, 15, 1
When it enters 6,17, each guided member 12 is guided to the guide rail 5 by the guiding means 14,15,16,17.

According to the second aspect of the present invention, when each door body 7 is folded, the engaging members 78, 83 pass through the regulating members 77, 84 along the guide rails 5, and each door body is pulled from the folded state. When extending 7, the restricting members 77 and 84
Engage with 78,83 to restrict movement toward the door stop. Therefore, the door body 7 on the hanging side of the guided member 12 is rotated around the hinge shafts 22 and 26 on the hanging side to guide the guided member 12
Enters the guiding means 14, 15, 16 and 17. And guided member
When 12 enters the guiding means 14, 15, 16 and 17, the engaging members 78 and 83 disengage from the restricting members 77 and 84 and pass toward the door stop side.

[0011]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 to 23 illustrate a first embodiment of the present invention,
In FIG. 1 and FIG. 2, 1 is a suspension base side pillar, 2 is a door stop side pillar, and these are erected on the ground 4 on both the left and right sides of the doorway 3. Reference numeral 5 is a guide rail, which is the suspension base 1
It is laid on the ground 4 between the strut and the strut-side strut 2.

[0012] 6 is a door body, 7 is a door body that constitutes the door body 6, and the door body 7 is an even number of four or more, for example, six,
Each of the door bodies 7 is pivotally mounted by a hinge means 8 of a one-point hinge type so as to be freely foldable around the longitudinal axis. The door body 7 at the door stop side end is pivotally attached to the door stop side end frame 10 via the hinge means 9 at the door stop side, and the door body 7 at the suspension base side is
It is pivotally attached to the suspension base 1 by way of the hinge means 11 on the suspension base.

Reference numeral 12 denotes a guided member, which is an odd number from the door-stop side (hereinafter, when referred to as the number "th", all from the door-stop side), that is, the first, third and It is provided near the lower side of the fifth hinge means 8,
Moreover, when the door body 6 is in the extended state, the guide rails 5 guide the door bodies 7 so as not to bend. Reference numeral 13 denotes a traveling means that travels along the guide rail 5, and hinge means 9 that pivotally connects the door body 7 at the door-stop side edge and the door-stop side end frame 10.
In addition to the lower part of the hinge means 8, it is provided at the lower part of each even-numbered hinge means 8, that is, the second and fourth hinge means 8.

Reference numeral 14 is a first kicking guide means for kicking out the third guided member 12, and 15 is a second kicking guide means for kicking out the first and second guided members 12. When the door body 6 is folded, the kicking guide means 14 and 15 guide each door body 7 in the vicinity of the hanging side pillar 1 so that the door bodies 7 are sequentially folded from the side closer to the hanging side. It is for kicking the member 12 out of the guide rail 5.

Reference numeral 16 is first kicking guide means for kicking in the third guided member 12, and 17 is second kicking guide means for kicking in the first and second guided members 12. When the door main body 6 is extended, these kicking guide means 16 and 17 guide each guided member 12 so as to sequentially extend each door body 7 from the door contact side door body 7 in the vicinity of the hanging side. It is for guiding inside. 18 is the first regulating means, which is the door body
The sixth door on the suspension side of the third guided member 12 is arranged so that the third guided member 12 enters the guide rail 5 through the first riser guide means 16 when the sixth door 6 is extended. This is to prevent the body 7 from moving toward the door.

Reference numeral 19 is a second restricting means, which allows the first and second guided members 12 to enter the guide rail 5 via the second riser guiding means 17 when the door body 6 is extended. This is for restricting the second and fourth door bodies 7 on the suspension base side of the guided member 12 so as not to move to the door stop side. Reference numeral 20 denotes an auxiliary wheel that rolls on the ground 4, and together with each guided member 12, is provided inside the doorway 3 with respect to the guide rail 5 in the vicinity of the lower part of each odd-numbered hinge means 8 so that it can swing freely. .

Hinge means 8 for pivotally connecting the door bodies 7 to each other
Is a hinge bracket 21 fixed to the upper and lower ends of a pair of adjacent door bodies 7 and vertically arranged between each pair of door bodies 7, and each hinge bracket 21 is rotatable about the vertical axis. And a hinge shaft 22 for connection. Hinge means 9 for pivotally connecting the door body 7 at the door stop side end and the door stop side end frame 10
Are hinge brackets 23 fixed to the upper and lower ends of the door body 7 and the door-stop side end frame 10, the door body 7 and the door-stop side end frame 10, respectively.
And a hinge shaft 24 which is vertically disposed between the hinge brackets 23 and which rotatably connects the hinge brackets 23 around the vertical axis.

The hinge means 11 for pivotally connecting the door body 7 at the end of the suspension base and the support column 1 at the suspension base is composed of a pair of upper and lower hinge brackets.
The hinge shaft 26 in the longitudinal axis direction fixed to the suspension base side of the door body 7 via 25 and the upper and lower ends of the suspension base side pillar 1 and the hinge shaft 26 along the guide rail 5 within a predetermined range. It is provided with a pair of upper and lower guide plates 27 for movably guiding inside.

Hinge bracket 2 of each hinge means 8, 9, 11
1, 23, 25 are bent so that the hinge shafts 22, 24, 26 on both sides of the door body 6 are located on the opposite sides of the door body 6 in the inward and outward directions. That is, when the door body 6 is folded, both ends and even-numbered hinge means 8, 9, 11 are mountain-folded in a front view, and odd-numbered hinge means 8 are valley-folded,
The hinge shafts 22, 24, 26 of the hinge means 8, 9, 11 at both ends and the even number are arranged so that the door bodies 7 can be folded in parallel.
The hinge shaft 22 of the odd hinge means 8 is
They are located outside of 7, offset from each other.

The hinge bracket 21 of each hinge means 8 is
There is one on the upper side and two on the lower side of the door bodies 7 on both sides.
As shown in FIG. 6, the door body 7 is inserted together with the spacers 29 into the tubular horizontal frame portions 28 at the upper and lower ends of the door body 7 and fixed by the bolts 30. As shown in FIGS. 7 and 8, the hinge bracket 23 on the door stop side end frame 10 side of the hinge means 9 is fixed to the door stop side end frame 10 with a spacer 31 interposed between the upper and lower hinge brackets 23. There is.

The hinge shaft 26 of the door 7 at the end on the hanging side is shown in FIG.
As shown in FIG. 11, it has a tubular member 32 interposed between the upper and lower hinge brackets 25, and a shaft member 33 fixed to the hinge bracket 25 above and below the tubular member 32 so as not to rotate. Long holes 34 parallel to the guide rails 5 are formed in the upper and lower guide plates 27, and the shaft members of the hinge shaft 26 are formed in the long holes 34.
33 is slidably and rotatably inserted. Therefore, the sixth
The second door body 7 is movable in the range of the elongated hole 34 in parallel with the guide rail 5 when the door body 6 is expanded and contracted, and is rotatable about the hinge shaft 26.

As shown in FIG. 3, the guide rail 5 is constructed by joining two rail plates 35 and 36, and the guide rail 5 has a guide groove 37 for running and a guide groove 38 for preventing refraction.
And are provided in parallel. The running guide groove 37 is configured by a pair of guide rail portions 41 and 42 in which the upper sides of the rising portions 39 and 40 of the two rail plates 35 and 36 are horizontally bent inward and the inside of each is bent downward. And is provided over the entire length of the guide rail 5. Each guide rail part
The lower side of 41, 42 is a fall prevention rail portion 43, 44, and a space is formed between the pair of rising portions 39, 40 below the guide rail portion 41, 42.

The refraction preventing guide groove 38 has a recess 45 formed by bending the rail plate 36 as shown in FIG. 3 and a recess 47 formed in the guide block 46 as shown in FIGS. 13 and 15.
And is constituted by. The rail plates 35 and 36 are connected to the lower surface side of the recess 45 of one rail plate 36 and the upper surface side of the end of the other rail plate 35. The guide block 46 is shown in FIG.
As shown in FIG. 5, when the door body 6 is extended, it is provided in a notch 36a formed in the middle of the rail plate 36 in the vicinity of the fifth hinge means 8 thereof.

The guide groove 37 for running and the guide groove 38 for preventing refraction are
As shown in FIG. 3, the refraction preventing guide groove 38 is formed on the guide rail.
5 Located in the center of the entire width direction, this anti-refraction guide groove
38 to the outside of the entrance / exit 3 with respect to 38, that is, the door body
A guide groove 37 for traveling is located on the side opposite to the protruding direction in which each door body 7 protrudes from the guide rail 5 when the door 6 is folded.

First kicking guide means 14 and first kicking guide means 1
6, and the second kicking guide means 15 and the second kicking guide means 17,
As shown in FIGS. 13 and 15, the guide blocks 46 are provided as a set. The guide block 46 is provided with two wide guide recesses 48 and 49 which are inclined in an oblique direction with respect to the longitudinal direction of the guide rail 5 at intervals in the longitudinal direction of the guide rail 5. The inner end sides of 48 and 49 are continuous with the refraction guide groove 38.

Then, the first kicking guide means 14 is formed by the inclined surfaces on both sides of the guide recess 48 near the hanging base side, that is, the inclined surfaces on the hanging base side, and the first kicking guide means is formed by the inclined surface on the door stop side.
16 are configured respectively. In addition, the guide recess far from the hanging side
Also by the inclined surfaces on both sides of 49, similarly the second kicking guide means
15 and second kicking guide means 17 are respectively configured. It should be noted that the refraction preventing guide groove 38 is formed in the first riser guide means 16 and
It is divided into two in the longitudinal direction of the guide rail 5 with the kicking guide means 15.

As shown in FIGS. 3 to 8, the traveling means 13 is fixed to the lower portions of the hinge shafts 22 and 24 of the hinge means 8 and 9 and extends inward and outward of the door body 6, that is, in the width direction of the guide rail 5. A wheel frame 50, a fixed bracket 51 fixed to both ends of the wheel frame 50 in the inner and outer directions, and a wheel bracket vertically adjustable on the fixed bracket 51.
52, a wheel 54 supported by a lower portion of the wheel bracket 52 via an axle 53, a pair of stoppers 55 protruding from the wheel frame 50 on both sides in the longitudinal direction of the guide rail 5, and a wheel frame 50.
On both sides of each wheel 55 underneath each stopper 55 and the wheel frame 50
A pair of traveling anti-vibration members 56 which are guided by being fitted into the traveling guide grooves 37 so that they are substantially perpendicular to the guide rails 5.
And the fall prevention rails 43 and 44 from below to engage the door body.
A fall prevention member 57 for preventing the inward and outward fall of 6 is provided.

The wheel frame 50 has a door body 6 as shown in FIG.
The hinge shafts 22 and 24 penetrate vertically at a position deviated to the outside so that the inner length L _{1 from} which the doors 7 project when folding is longer than the outer length L ₂ . It is fixed. In other words, the wheel frame 50 largely projects with respect to the guide rail 5 in the protruding direction of the door body 7 when folded.

Each fixing bracket 51 is fixed to the end surface of the wheel frame 50 with a screw 58 so as to project downward from the wheel frame 50. An axle 53 is horizontally fixed to each wheel bracket 52, and vertically long holes 59 are formed on both sides of the axle 53. Then, each wheel bracket 52 is inserted into each long hole 59 from the side of the wheel bracket 52 and by a pair of bolts 61 screwed into the screw holes 60 of the fixed bracket 51,
It is mounted on a fixed bracket 51 so as to be vertically adjustable.

The axle 53 is a screw hole of the wheel bracket 52.
Wheel bracket 52 that consists of bolts that screw into 62
The wheel 54 is rotatably fitted on the axle 53. Each wheel 54 has a guide rail 5
It rolls on the ground 4 on both sides. Further, the fixed bracket 51 has a long hole 63 formed at a portion corresponding to the tip of the axle 53.

The stopper 55 is for ensuring a space between the traveling means 13 so that the door bodies 7 become substantially parallel when the door body 6 is folded, and a notch 64 at the central portion.
Is connected to the wheel frame 50 from below through a cross shape.
The anti-vibration member 56 is composed of a guide roller fitted into the guide groove 37 for traveling of the guide rail 5, and is rotatably attached to both sides of the wheel frame 50 by a vertical axis 65 fixed to stoppers 55. Each vertical axis 65 is composed of a bolt, and is fixed to each stopper 55 from below by nuts 67 and 68 through a fixing plate 66 that straddles each stopper 55 and contacts the lower side thereof. 66 is fixed to the lower part of the hinge shafts 22 and 24. Caps 69 are attached to both ends of each stopper 55.

The fall-preventing member 57 has a disk shape, and is a door body.
When 6 is tilted inward and outward, a pair of fall prevention rail parts
It is fixed by screws 70 to the lower ends of the hinge shafts 22 and 24 in the pair of running guide grooves 37 so as to engage with either of the 43 and 44 from below. The guided member 12 is shown in FIG. 3, FIG. 13 and FIG.
As shown in FIG. 4, the anti-refraction guide groove 38 of the guide rail 5
It is composed of a guide roller that fits into the shaft and is rotatably fitted to the lower end of the vertical axis 71. The vertical axis 71 has its upper end rotatably inserted at the intersection of a pair of links 72.
Thus, the links 72 are flexibly and pivotally connected. The base side of each link 72 is rotatably supported by a pivot 74 on a boss 73 fixed on the lower side in the vicinity of the ends of the door bodies 7 on both sides of the odd-numbered hinge means 8. The pivot 74 is composed of a bolt or the like.

Of the pair of links 72, the link 72 pivotally supported by the door 7 on the suspension side extends straightly beyond the vertical axis 71 as shown in FIGS. 13 and 14, and its tip end. Auxiliary wheels 20 are provided in the section. Auxiliary wheel 20 is link 72
It has a caster structure in which a bracket 76 is rotatably supported around a swing shaft 75 fixed to the tip of the door, and when the door body 6 is folded by this auxiliary wheel 20, each of the odd numbered hinge means 8 side It is designed to receive the load of the door 7.

As shown in FIGS. 9 to 12, the first restricting means 18 comprises a pair of upper and lower plate-like restricting members 77 fixed to the suspension base 1 below the upper and lower guide plates 27, respectively. This regulation member
The engaging member 78 is formed integrally with each shaft member 33 of the hinge shaft 26 so as to project correspondingly to the 77. Each regulation member
77 includes a long hole 79 corresponding to the upper and lower sides of the long hole 34 of each guide plate 27 and through which the shaft member 33 of the hinge shaft 26 is rotatably inserted, and a concave portion is formed from the long hole 79 to the outside of the door body 6. A rotation permitting recess 80 is formed which allows the engagement member 78 of the shaft member 33 to rotate and which allows the engagement member 78 to abut against the door contact side of the rotation permitting recess 80 so that the shaft member 33 can be rotated. A restriction portion 81 that restricts entry into the long hole 79 is formed.

The first restricting means 18 is the door body 6
When the third guided member 12 enters the first rise guide means 16 of the guide recess 48 at the time of extension, the engaging member 78 of the shaft member 33 comes into contact with the restriction portion 81 and the door stop side of the hinge shaft 26. The third guided member 12 regulates the movement to the first kicking guide means.
The sixth door body 7 is rotated around the hinge shaft 26 toward the guide rail 5 so that the third guide member 12 is located inside the outer end of the first kicking guide means 16 so as to enter 16. In the case of, the engaging member 78 is configured to pass in the longitudinal direction of the guide rail 5 without engaging with the restriction portion 81. Each restricting member 77 together with the guide plate 27 is attached to the suspension base 1 by bolts 82.
It is fixed to.

As shown in FIGS. 1 and 2, the second restricting means 19 engages and disengages the engaging members 83 fixed to the second and fourth door bodies 7. It is composed of a restricting member 84 that freely locks. Each engaging member 83 projects downward inside the door body 6 in the vicinity of the suspension base side of the door body 7. As shown in FIG. 11, the restricting member 84 has a height corresponding to the space between the lower guide plate 27 and the restricting member 77, and the suspending-side strut.
It is fixed inside the lower part of 1 by bolts 85.

As shown in FIGS. 9 to 12, the restricting member 84 moves toward the door-stop side so that each engaging member 83 is detachably locked on the door-stop side when the door body 6 is extended. The regulation guide surface 86 is curved toward the main body 6 and is formed in a two-character shape in plan view. When the door body 6 is extended, the restricting member 84 does not move the door body 7 until the guided member 12 on the door stop side of the engaging member 83 enters the guide recess 49 of the second riser guide means 17. Each door body to rotate around hinge shaft 22
The movement of 7 toward the door stop side is regulated so that when the guided members 12 are inside the outer end of the second riser guide means 17, the engaging members 83 are allowed to pass through in the longitudinal direction of the guide rail 5. It has become. The door stop side end frame 10 is provided with a handle 87 and a locking means 88.

In the folding door having the above structure, when closing the entrance / exit 3, as shown in FIGS. 1 and 2, the door main body 6 is extended to the maximum extension state, and the door contact side end frame 10 is set to the door contact side strut 2. Abut. At this time, the hinge shaft 26 on the suspending side is located at the end of the elongated hole 34 of the guide plate 27 on the door-stop side, as shown in FIG. 16, and the first and second guided members 12 are guided. As shown in FIG. 3, the anti-refraction guide groove 38 of the rail plate 36 and the third guided member 12 are provided in the anti-refraction guide groove 38 of the guide block 46 as shown in FIG. 15, respectively.

Therefore, even if an external force is applied to the door body 6 in the inward and outward directions, the door bodies 7 of the door body 6 are locked by the guided members 12 and the refraction preventing guide grooves 38 so that they cannot be refracted.
Each door body 7 is not bent in an unstable manner. At this time, even if an external force in the falling direction (inward / outward direction) acts on the upper side of each door body 7 so that the door body 6 falls over inward and outward, the traveling means 13 is placed below the even-numbered hinge means 8. The fall prevention member 57 provided on the lower side of the wheel frame 50 between the wheels 54 of each traveling means 13 is adapted to engage with the fall prevention rail portions 43 and 44 of the guide rail 5 from below. Therefore, the door body 6 only tilts to the angle at which the fall prevention member 57 engages with the fall prevention rail portions 43 and 44, and does not fall inward or outward.

Further, for example, when the door body 6 is to fall over to the outside, the overturn preventing member 57 prevents the opposite side from floating with the outside wheel 54 as a fulcrum.
It is engaged with the fall prevention rail portions 43, 44 to prevent the rail portions. Therefore, if the distance between the wheel 54 and the fall prevention rail portions 43, 44 changes and becomes smaller, the fall prevention member 57 and the fall prevention rail portions are reduced.
A large load is applied to 43 and 44, and they will be deformed or damaged.

However, the wheel frame 50 of each traveling means 13 is in a state of being substantially at right angles to the guide rail 5 by the pair of anti-vibration members 56, and the angle thereof hardly changes. 54 and each guide rail 5 fall prevention rail section 4
The distance between 3,44 is almost constant. Therefore, in both cases of inside and outside, the load applied to the fall prevention member 57 and the fall prevention rail portions 43 and 44 is constant and does not change when the fall of the door body 6 is prevented, so the fall prevention member 57 and the fall prevention rail portion are not changed. A strong load is not applied to 43, 44 and they are not deformed or damaged, and the durability of the fall prevention member 57 and the fall prevention rail portions 43, 44 is improved.

When the door body 6 is folded and the doorway 3 is opened, the handle 87 of the end frame 10 on the door stop side is grasped and the door body 6 is opened.
When the whole is pushed along the guide rail 5 in the direction indicated by the arrow a in FIG. 1, the pair of wheels 54 of each traveling means 13 rolls on both sides of the guide rail 5, and the entire door body 6 moves in the direction indicated by the arrow a. Moving.
At the start of this movement, each shaft member 33 of the hinge shaft 26 on the suspension base side
1 from the position shown in FIG. 16 through the state shown in FIG.
Up to the state shown in FIG. 8, the guide plate 27 linearly moves in the direction of the arrow a along the long hole 34.

While the door body 6 moves to the state shown in FIG. 17, the third guided member 12 first comes out of the refraction preventing guide groove 38 and moves to the first kicking guide means 14 side. ,
After that, the engaging member 78 of the shaft member 33 goes over the restricting portion 81 of the guide plate 27 to reach the rotation permitting concave portion 80 side, and the third guided member 12 contacts the first kicking guide means 14 side. Contact. Therefore, when the door body 6 continues to move in the direction indicated by the arrow a, as shown in FIG.
As shown in FIG. 3, the third guided member 12 moves in the direction of the arrow b along the inclined surface of the first launch guide means 14,
The fifth guided member 12 is kicked out of the guide concave portion 48 to the outside, so that the door bodies on both sides of the fifth hinge means 8 are driven.
7 begins to bend in a valley fold shape with the hinge axis 22 of the fifth hinge means 8 as a fulcrum.

At this time, the sixth door body 7 is rotated in the direction of the arrow c with the hinge shaft 26 on the suspension side as a fulcrum, and the fifth door body 7 is rotated by the fourth hinge means 8. It rotates in the direction of the arrow d with the hinge shaft 22 as a fulcrum. However, even if the sixth door body 7 and the fifth door body 7 start bending as described above, the hinge means 9 on the door-stop side and the second and fourth hinge means 8 are At the bottom, there are traveling means 13, respectively, and each traveling means 13 travels along the guide rails 5 in the direction of the arrow a, so that the fifth door body 7 has the hinge shaft 22 of the fourth hinge means 8. It is only turned around, and the door bodies 7 from the fourth to the door stop side are still in a straight line state.

Of course, each guided member 12 has a refraction preventing guide groove.
Since it is in 38, each door body from the 4th to the door stop side
7 cannot be bent inward and outward. When the door stop side end frame 10 of the door body 6 is further moved and the third traveling means 13 reaches the vicinity of the suspension base side pillar 1, the sixth door body 7 and the fifth
The thirteenth door body 7 is bent in an acute angle in the vicinity of the suspension base column 1 as shown in FIG.

Therefore, when the door stop side is slightly opened to enter and exit, it is only necessary to bend the two door bodies 7 on the suspension base side, and it is not always necessary to fold the entire door body 6. Even in this state, most of the door body 6 is in the same linear state as when it is maximally extended, except for the two door bodies 7 on the hanging side, so that the door bodies 6 are entirely covered. The appearance is very good as compared with the conventional one in which 7 is refracted almost at the same time.

When the third traveling means 13 moves to the position shown in FIG. 19, the engaging member 83 of the second restricting means 19 passes the outside thereof without interfering with the restricting member 84. That is, when the engaging member 83 passes through the tip of the regulating member 84, the second member
Since the fourth guided member 12 has not reached the inclined surface of the second kicking guide means 15 and the fourth door body 7 remains parallel to the guide rail 5, the engaging member 83 is restricted. Without passing through the member 84, it passes through the outside of the tip toward the suspension base in the direction of arrow a.

As shown in FIG. 19, after the second guided member 12 reaches the inclined surface of the second kicking guide means 15, when the whole is further pushed in the direction of arrow a, the second guided member 12 is pushed. The guide member 12 is guided by the inclined surface of the second kicking guide means 15 and kicked out of the guide recess 49 to the outside of the guide rail 5, so that the fourth door body 7 and the third door body 7 are moved along with the movement. The door body 7 and the third hinge means 8 are bent in a valley fold shape. At this time, the sixth door body 7 and the fifth door body 7 are bent to a substantially parallel state, and the fifth door body 7 and the fourth door body 7 are connected to the fourth hinge. It is bent into a mountain fold by means 8.

Thereafter, when the door stop side end frame 10 is pushed toward the hanging base side, similarly, each door body 7 from the second to the door contact side is also bent in order, and as shown in FIG. All the door bodies 7 of the door body 6 can be folded in a zigzag shape near the side. Since each door body 7 moves along the guide rails 5 in a straight state to the vicinity of the suspension base side and is sequentially folded in a zigzag shape from the suspension base side, the space required for folding each door body 7 Suffices to secure inside the guide rail 5 near the suspension base side, and the length of the guide rail 5 is longer than that of the conventional one in which each door body 7 of the door body 6 is folded in zigzag at the same time. It is not necessary to secure space over the entire direction. Therefore, they can be arranged close to obstacles such as buildings, and the occurrence of dead space can be minimized.

Further, in the folded state, the stoppers 55 of the respective traveling means 13 are in contact with each other so that the door bodies 7 are substantially parallel to each other. For this reason, the door bodies 7 do not come into contact with each other, and an unnecessary external force is not applied to each hinge means 8, and at the same time, the door bodies 7 can be folded in an orderly and compact manner.

Each guided member 12 is located in the vicinity of the inner side of the hinge shaft 22 of each odd-numbered hinge means 8 and each door body on both sides thereof.
Since the guided member 12 is connected to the door bodies 7 on both sides via the link 72 in addition to having substantially the same distance as that of the kicking guide means 14 and 15, the guided members 12 are connected to each other by the inclined surfaces of the kicking guide means 14 and 15. When kicking out the guide member 12, the kicking force acts substantially evenly on the door bodies 7 on both sides, and the door bodies on both sides of the odd-numbered hinge means 8 are
7 can be smoothly bent into a valley fold.

Further, each link 72 for supporting the guided member 12
Are pivotally supported on each door body 7 by a pivot 74, so when each door body 7 is in a linearly extended state, the door body 7 and the guided member 12 are
A large space between can be secured. Therefore, even when the traveling guide groove 37 and the refraction preventing guide groove 38 are provided in the guide rail 5, a space can be secured between them, so that the guide rail 5 can be easily manufactured.

Moreover, each guided member 12 approaches the hinge shaft 22 side of the hinge means 8 due to the bending of each door body 7, and when each door body 7 becomes substantially parallel, the guided member 12 is guided. Since it will only slightly protrude from the hinge shaft 22, even if each door body 7 is left in a zigzag folded state,
Each guided member 12 does not significantly protrude from the lower portion of each door body 7 and become an obstacle.

In the folded state of each door body 6, each door body 7
Means that even-numbered hinge means 8 having the hinge shaft 26 on the suspension side and the traveling means 13 are located on the guide rail 5 side, and the odd-numbered hinge means 8 side is the farthest from the guide rail 5 Projected inward from guide rail 5 by the distance between 8 However, there is an auxiliary wheel 20 on the side of each odd-numbered hinge means 8 via a link 72, and since the load of each door body 7 is supported by this auxiliary wheel 20, each hinge means 8, 9, 11, A large load is not applied to the traveling means 13, etc., and each hinge means 8, 9, 11, traveling means 13 and guide rails.
The load on the doors 5 can be reduced, and the stability of the doors 7 in the folded state is improved.

Further, since the auxiliary wheel 20 can freely swing around the center of the vertical axis at the tip portion of the link 72, even when the door bodies 7 are bent and folded, the auxiliary wheels 20 will not move in the bending motion of the door bodies 7. It will follow smoothly and comfortably. Therefore, even during the folding operation of each door body 7, each door body 7 can be stably supported by the auxiliary wheel 20, and the folding operation of each door body 7 can be smoothed.

In the wheel frame 50 of each traveling means 13, the inner length L ₁ from the hinge shaft 22 of the even-numbered hinge means 8 is the outer length.
L ₂ has become greater than, in the folded state of each door body 7, the inner wheel 54 of the wheel frame 50 is far from the guide rail 5 in the projecting direction of the door body 7, the whole in the folded state Although the center of gravity of the vehicle moves away from the upper side of the guide rail 5 to the inside, the position of the center of gravity can be set between the wheel 54 and the guide rail 5 on the inside.

Therefore, even if the auxiliary wheels 20 are not provided, the folded doors 7 can be supported with good stability, and the fall-prevention member 57 is provided with the fall-prevention rail portions 43, 44 of the guide rail 5. Does not have to be constantly engaged with
The folding operation of each door body 7 can be performed easily and smoothly.

The wheel frame 50 of the traveling means 13 is in a substantially right angle state with respect to the guide rails 5 because the anti-vibration members 56 provided on the stoppers 55 on both sides thereof move in the traveling guide grooves 37 of the guide rails 5. It is kept at, and does not swing unstable. Therefore, the distance between each wheel 54 and the guide rail 5 is always constant, and at the same time, the length of the wheel frame 50 is large so that the wheel 54 is largely separated from the guide rail 5 inwardly. The direction of the axle 53 supporting the wheels 54 is constant, and each wheel 54 can be smoothly rolled in parallel with the guide rail 5.

Further, each traveling means 13 is cantilevered and horizontally protrudes below the wheel brackets 52 attached to the fixed brackets 51 at both ends of the wheel frame 50, and the wheels 54 are fitted onto the axles 53 thereof. Therefore, the ground clearance of the wheel frame 50 can be kept low. Therefore, the center of gravity of the door body 6 including the door bodies 7 can be lowered, and the stability of the door body 6 is improved. Further, since each wheel bracket 52 is mounted on the fixed brackets 51 at both ends of the wheel frame 50 so as to be vertically adjustable, even when the ground 4 is inclined on both sides of the guide rail 5 or there is a difference in height between the ground 4 and the like. ,
Accordingly, the height of the wheels 54 on both sides can be adjusted up and down to make the wheel frame 50 horizontal.

When each door body 7 is extended from the folded state to extend the door main body 6, the handle of the door stop side end frame 10
87 is gripped, and this door stop side end frame 10 is moved in the direction of arrow e. Then, the first traveling means 13 on the door stop side moves along the guide rail 5 in the direction of arrow e,
Since the distance between the third traveling means 13 and the second traveling means 13 is widened, the first door body 7 and the second door body 7 have hinge shafts 22, It turns around 24 and extends straight. And this first door body
When 7 and the second door body 7 are in a straight line state, the second traveling means 13 moves in the direction of the arrow e through the second hinge means 8, and similarly the third door means 7 moves. The door body 7 and the fourth door body 7 extend straight.

In this case, before the door bodies 7 on both sides of each of the first and third hinge means 8 are extended to the linear state, each of the second and fourth door bodies 7 is attached. Engaging member
Since 83 is locked by the restricting member 84 of the suspension base 1, the first and second guided members 12 near the first and third hinge means 8 are the second and third guided members 12, respectively. It is guided by the inclined surface of the rise guide means 17 and enters the refraction preventing guide groove 38 from the guide recess 49.

For example, in FIG. 21, the engaging member 83 attached to the fourth door body 7 is engaged with the regulating member 84, and the fourth door body 7 is moved along the guide rail 5 in the direction of arrow e. It shows a state in which it is locked so as not to move. 4th door body 7 when extended
Moves in the direction of arrow e while rotating in the direction of arrow f about the hinge shaft 22 of the fourth hinge means 8 as the relative angle with the fifth door body 7 increases. .

Then, when the fourth door body 7 moves to a certain position, the front side of the regulating member 84 is curved in the shape of a letter toward the running guide groove 37 side of the guide rail 5, so that it is the fourth shape. The engaging member 83 of the door body 7 comes into contact with the regulation guide surface 86 of the regulation member 84, and the fourth door body 7 is locked so as not to move in the arrow e direction. Therefore, the fourth door 7
So that the relative angle with the fifth door body 7 becomes large,
The fourth hinge means 8 is rotated about the hinge shaft 22 in the direction of the arrow f, and the second guided member 12 is guided into the guide recess 49.
Let's go inside.

At this time, since the regulation guide surface 86 of the regulation member 84 is formed in an arc shape centering on the hinge shaft 22 of the fourth hinge means 8, the engagement member 83 and the regulation member 84 are separated from each other. The engagement member 83 is smoothly guided along the regulation guide surface 86 without causing a jamming or the like. Then, when the second guided member 12 enters the guide recess 49, the engaging member 83 is disengaged from the regulation guide surface 86 of the regulation member 84 and the locked state is released, so that the fourth door body is formed. 7 moves in the direction of arrow e, and after this movement, the second guided member 12 comes into contact with the inclined surface of the second riser guide means 17,
Enter 38.

On the other hand, when the engaging member 83 is locked by the restricting member 84, the engaging member 78 of the hinge shaft 26 on the suspending side is restricted by the restricting portion of the guide plate 27, as shown in phantom in FIG. Since it is in contact with 81, the hinge shaft 26 on the suspension base side does not move in the direction of the arrow e beyond the restricting portion 81. And the fourth
If the fourth door body 7 moves in the direction of arrow e after the engaging member 83 of the seventh door body 7 is disengaged from the regulating member 84,
Each of the 7th and 6th door bodies 7 extends linearly. However, since the sixth door body 7 cannot move in the direction of arrow g, the engaging member 78 remains in contact with the restricting portion 81 and is integrated with the hinge shaft 26 on the suspension base side in the direction of arrow g. 22, the third guided member 12 is guided into the guide recess 48 as shown in FIG.

When the third guided member 12 enters the guide recess 48, the engaging member 78 comes close to being parallel to the elongated hole 79 of the restricting member 77 as shown in FIG. Is released, the sixth door body 7 within the range of the long hole 79
Moves in the direction of arrow e, and with this movement, the third guided member 12 contacts the inclined surface of the first riser guide means 16 and then enters the refraction preventing guide groove 38.

As a result, all the door bodies 7 of the door body 6 extend and become linear along the guide rails 5, and each guided member 12 enters the refraction preventing guide groove 38 of the guide rail 5 and is locked. As a result, each door 7 becomes refractable. Thus, even when each door body 7 is extended and linearly extended from the bent state of the door body 6, if the handle 87 of the door stop side end frame 10 is moved to the door stop side strut 2 side, Each door 7 can be sequentially extended from the door stop side.

When extending each door body 7, each guided member
Since 12 is guided to the refraction preventing guide groove 38 of the guide rail 5 by the riser guide means 16 and 17, the refraction preventing guide groove 38 makes it impossible to refract each door body 7 through each guided member 12. Can be locked. Also, the engaging members 78,83 and the regulating members 77,84
The regulation means 18, 19 provided with
While restricting the movement of the door body 7 that is closer to the suspension side than the guided members 12 by rotating the door body 7 around the hinge shafts 22 and 26,
Each guided member 12 is guided to the kicking guide means 16 and 17, and by the cooperation of the regulating means 18 and 19 and the kicking guide means 16 and 17,
Insert each guided member 12 into the guide groove 38
Since it is guided to, the operation at the time of extension is very smooth, and it is not necessary to provide the kicking guide means 16 and 17 on the side of the guide rail 5 to a large extent. It can be miniaturized.

In particular, the restricting means 18 and 19 are set within the width of the guide rail 5, and the kicking guide means 16 and 17 are provided in the guide block 46 forming a part of the guide rail 5 and the guide recess 4 is formed.
Since it is only necessary to form notches in 8,49, the structure is very simple and the construction etc. are also very easy. 24 to 25 illustrate a second embodiment of the present invention. In the second embodiment, the hinge shaft 22 of the hinge means 8 provided with the traveling means 13 and
The door body 7 on the door-stop side of the hinge shaft 22 is fixed so as to be integrally rotatable, and the engaging member 83 is attached to the lower portion of the hinge shaft 22.
Is fixed and the regulating member 84 is mounted on the rail plate 35 of the guide rail 5 to form the second regulating means 19.

That is, the hinge shaft 22 is rotatably supported by the tubular body 89 fixed to the wheel frame 50 about the vertical axis, and the hinge shaft 22 is provided above the hinge shaft 22 with the hinge of the door body 7 on the door stop side. bracket
21 is fixed by screws 92 and the like, and the fall prevention member 57 and the engaging member 83 are fixed on the lower side. The restricting member 84 is composed of rollers, and is mounted on the rail plate 35 near the traveling guide groove 37 of the guide rail 5 via the bracket 90 and the support shaft 91.

In the second embodiment, when the door body 6 is extended, when the traveling means 13 under the fourth hinge means 8 moves to the door stop side when the door body 7 is folded, The engaging member 83 provided on the hinge shaft 22 of the eighth hinge means 8 engages with the restricting member 84 as shown in FIG. 24, and the fourth door body 7 does not move to the door stop side.

When the door stop side end frame 10 is moved to the door stop side in this state, the fourth door body 7 is rotated around the hinge shaft 22 of the fourth hinge means 8 locked by the regulating member 84. Then, the second guided member 12 moves toward the guide recess 49 side. At this time, the hinge shaft 2 is integrally formed with the fourth door body 7.
2. The engaging member 83 rotates. Then, when the second guided member 12 enters the guide concave portion 49 and can be guided to the second rise guide means 17, the engaging member 83 disengages from the restricting member 84,
Since the fourth door body 7 moves to the door stop side,
The third guided member 12 is guided into the guide rail 5 by the second riser guide means 17, and the third and fourth door bodies
7 extends straight.

In this second embodiment, the engaging member 83 is fixed to the lower part of the hinge shaft 22 which rotates integrally with the even-numbered door body 7, and the regulating member 84 is fixed to the guide rail 5 side. As compared with the first embodiment in which the restricting member 84 of the second restricting means 19 is formed in the shape of a letter, the restricting member 84 can be prevented from being deformed, damaged, etc., and the durability of the second restricting means 19 can be improved. improves. The regulating member 84 may be a fixed member such as a protrusion, but since a roller that rotates around the support shaft 91 is used, the engaging member
The wear of 83 and the control member 84 can be reduced, and the door body
6 can expand and contract smoothly. Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment.

For example, in the embodiment, the ground traveling type folding door is exemplified, but the same can be applied to the hanging traveling type folding door. The guided member 12 is
It may be provided in the lower part of the door body 7 in the vicinity of the odd-numbered hinge means 8. The regulation member 84 of the second regulation means 19 in the first embodiment may be mounted on the upper surface of the rail plate 36 of the guide rail 5. The regulation member 84 of the second regulation means 19 in the second embodiment may be provided below the upper surface of the guide rail 5.

Further, in the embodiment, the number of doors 7 is an even number of 6, but an odd number of 5, 7 or the like is used, and the hinge shaft 26 of the door 7 at the end of the hanging side is set to the hanging side. It is movably supported along a guide plate that protrudes inward from the pillar 1, so that when the door body 6 is folded, its hinge shaft 26 moves inward from the hanging pillar 1 along the guide plate. You can

The first door 7 may be constructed so as to be openable and closable around the hinge shaft 22 of the first hinge means 8. The first kicking guide means 14 and the second kicking guide means 15, and the first kicking guide means 16 and the second kicking guide means 17 can be used together, and the kicking guide means 14 and 15 and the kicking guide can be used together. means
You may make 16 and 17 function also. In addition, the guide rails 5 are such that each door body 7 of the door body 6 has hinge means 8, 9,
It may be bent and installed according to the conditions of the installation site within the range where refraction is possible by 11.

[0077]

According to the present invention as set forth in claim 1, a plurality of door bodies 7 are pivotally attached by a hinge means 8 so as to be foldable in a zigzag shape around the longitudinal axis, and the door body 6 is constituted. Every other one of the hinge means 8 is provided with a traveling means 13 that travels along the guide rails 5, and guides are provided in the vicinity of the hinge means 8 without the traveling means 13 so that the extended door bodies 7 do not bend. The guided member 12 guided by the rail 5 is provided,
Guide each guided member 12 so that when the door body 6 is folded, each door body 7 is sequentially folded from the hanging base side in the vicinity of the hanging base side, and when extended, each door body 7 is sequentially expanded from the door contact side. When the guided member 12 enters the guide rail 5 through the guiding means 14, 15, 16, 17 in the folding door provided with the guiding means 14, 15, 16, 17, Since the restricting means 18 and 19 for restricting the side door body 7 from moving toward the door stop side are provided, the following remarkable effects can be obtained.

Since the regulating means 18, 19 are provided, it is not necessary to project the guiding means 14, 15, 16, 17 to the side of the guide rail 5, and the structure on the suspension base side can be made simple and compact. You can

When the guided member 12 enters the guide rail 5 via the guiding means 14, 15, 16 and 17 by the regulating means 18 and 19,
The door body 7 on the hanging side of the guided member 12 is restricted so as not to move to the door stop side, and the guided member 12 is guided by the guide means 14, 1.
In order to guide to 5,16,17, even if the guide means 14,15,16,17 are made small, each door body 7 can be sequentially and smoothly guided from the door contact side to the guide rail 5, Each door 7
Can be easily extended.

According to the present invention as set forth in claim 2, in the invention as set forth in claim 1, the door body 7 closer to the hanging base than the guided member 12 is integrally formed with the door 7 near the hanging base. The engaging member 78, 83 for rotating the guide member 5 is provided on the fixed side including the guide rail 5 when the door body 6 is extended.
16 and 17 to engage the door 7 on the suspension side of the guided member 12 around the hinge means 8 and 11 to rotate the door 7 on the suspension side of the guided member 12 on the suspension side of the guided member 12. And the guided member 12 is inside the outer ends of the guiding means 14, 15, 16, 17 in the longitudinal direction of the guide rail 5, the engaging members 78, 8
Since the regulating members 77 and 84 that allow passage of 3 are provided,
The following remarkable effects can be achieved.

Since the regulating means 18, 19 are composed of the engaging members 78, 83 and the regulating members 77, 84, the regulating means 18, 19
The structure of itself can be simplified.

When the engaging members 78, 83 are rotatable together with the door body 7 and the guided member 12 is inside the outer ends of the guiding means 14, 15, 16, 17, the regulating member 77, 84 allows passage of the engaging members 78 and 83 in the longitudinal direction of the guide rail 5, so that when the door bodies 7 are folded,
77, 84 do not restrict the engaging members 78, 83, the door bodies 7 can be easily folded, and after the guided member 12 enters the guiding means 14, 15, 16, 17. , Regulating member
The engagement of the engagement members 78 and 83 by the 77 and 84 can be easily released by the extension operation of the door body 7.

[Brief description of drawings]

FIG. 1 is a plan view of an entire folding door showing a first embodiment of the present invention.

FIG. 2 is a front view of the entire folding door showing the first embodiment of the present invention.

FIG. 3 is a partially cutaway side view of the traveling means showing the first embodiment of the present invention.

FIG. 4 is a plan view of the traveling means showing the first embodiment of the present invention.

5 is a cross-sectional view taken along the line AA of FIG.

FIG. 6 is a sectional view taken along line BB of FIG.

FIG. 7 is a plan sectional view of a door-stop side end frame portion showing the first embodiment of the present invention.

FIG. 8 is a front view of the door stop side end frame portion showing the first embodiment of the present invention.

FIG. 9 is a plan view of a suspension base side portion showing the first embodiment of the present invention.

FIG. 10 is a partially cutaway front view of a suspension base side portion showing the first embodiment of the present invention.

FIG. 11 is a partially cutaway side view of a suspension base side portion showing the first embodiment of the present invention.

FIG. 12 is a plan view of a suspension base side portion showing the first embodiment of the present invention.

FIG. 13 is a plan view of a guide means portion showing the first embodiment of the present invention.

FIG. 14 is a partially cutaway front view of the guide means portion showing the first embodiment of the present invention.

FIG. 15 is a sectional view taken along line CC of FIG. 13;

FIG. 16 is an explanatory diagram showing the first embodiment of the present invention before the start of folding.

FIG. 17 is an operation explanatory diagram before kicking out at the time of folding according to the first embodiment of the present invention.

FIG. 18 is an operation explanatory view during kicking out during folding according to the first embodiment of the present invention.

FIG. 19 is an operation explanatory diagram during folding according to the first embodiment of the present invention.

FIG. 20 is an explanatory diagram of a folded state showing the first embodiment of the present invention.

FIG. 21 is an explanatory diagram at the time of decompression operation according to the first embodiment of the present invention.

FIG. 22 is an explanatory diagram during kicking at the time of extension operation according to the first embodiment of the present invention.

FIG. 23 is an explanatory diagram of a restriction releasing operation during a decompressing operation according to the first embodiment of the present invention.

FIG. 24 is a partially cutaway plan view of the regulating means showing the second embodiment of the present invention.

FIG. 25 is a sectional view of a regulating means showing a second embodiment of the present invention.

[Description of sign]

 5 Guide rail 6 Door body 7 Door body 8,11 Hinge means 12 Guided member 13 Traveling means 14 First kicking guide means 15 Second kicking guide means 16 First kicking guide means 17 Second kicking guide means 18 First Regulation means 19 2nd regulation means 22,26 Hinge shaft 77,84 Regulation member 78,83 Engagement member

Claims (2)

[Claims] 1. A door body (6) is constructed by pivotally attaching a plurality of door bodies (7) so as to be zigzag-foldable around a longitudinal axis by a hinge means (8) to form a door body (6). Every other, in the vicinity of the hinge means (8), which is provided with traveling means (13) for traveling along the guide rails (5) respectively, and which is not provided with the traveling means (13),
Guide rails to prevent bending of each extended door (7)
Provide the guided member (12) to be guided by (5)
When folding (6), each door body (7) is sequentially folded from the hanging base side in the vicinity of the hanging base side, and when extended, each guided body is extended so that the door body (7) is sequentially extended from the door stop side. Material (12)
In a folding door provided with guiding means (14), (15), (16), (17) for guiding the guided member (12), the guided member (12) passes through the guiding means (14) (15) (16) (17). 5) When entering inside, the guided member (12)
A folding door extension restricting device, which is provided with restricting means (18) (19) for restricting the door body (7) closer to the suspension base side than moving toward the door stop side. 2. A door body closer to the suspension side than the guided member (12).
An engaging member (78) (83) that rotates integrally with the door body (7) is provided near the suspension base side of (7), and the door body (6) is fixed to the fixed side including the guide rail (5). When the guided member (12) is extended,
4) To rotate the door body (7) closer to the hanging side than the guided member (12) around the hinge means (8) (11) so as to enter into the (15) (16) (17). Engagement member (78) closer to the suspension side than the guide member (12)
(83) is locked, and the guided member (12) is guided by guide means (14) (1
5) When the guide rail is inside the outer ends of (16) and (17),
The regulation for extension of a folding door according to claim 1, further comprising a regulating member (77) (84) for allowing passage of the engaging member (78) (83) in the longitudinal direction of the (5). apparatus.