JPH08177357A - Overground folding door - Google Patents

Abstract

(57) [Summary] [Purpose] The door body can be supported by the traveling means without being affected by the moment of the door body, improving stability regardless of the size of the door body, and smooth and light operation when opening and closing. Provide a ground-operated folding door that can be used for [Structure] A plurality of doors 7 are hinged to be pivotally attached in a zigzag manner about the longitudinal axis to form a door body 6, which is laid on the ground 4 side under every other hinge means. When the door body 6 is folded, each door body 7 moves from the guide rail 5 to the inside / outside direction of the door body 6 with the hinge means having the traveling means 13 as a fulcrum. Each door member 7 is configured to be folded in a zigzag shape so as to project to one side, and each traveling means 13 is provided with wheels 54 arranged on both sides of the guide rail 5 inward and outward of the door body 6. The distance W ₁ between the hinge means provided with the traveling means 13 and the wheel 54 on the protruding direction side of the door body 7 is defined as the distance W ₁ between the hinge means and the wheel 54 on the opposite side to the protruding direction of the door body 7.
It is made larger than W _{2 and} the center of gravity of the door body 6 when folded is located closer to the guide rail 5 than the grounding point of the wheel 54 on the protruding side of the door body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground traveling type folding door in which a plurality of door bodies constituting a door body are pivotally attached by a hinge means so as to be freely foldable in a zigzag shape around a vertical axis.

[0002]

2. Description of the Related Art In a ground-traveling type folding door installed at a doorway or the like, conventionally, as described in Japanese Utility Model Publication No. 58-8853, a plurality of door bodies are zigzag-shaped around a vertical axis by a hinge means. The main body of the door is pivotally attached to
The lower part of the door contact side end of the door body and the lower part of the even-numbered hinge means from the door contact side are provided with traveling means for traveling along the guide rails laid on the ground side, respectively. When folded, there is one in which each door body is folded in a zigzag shape so that each door body projects from the guide rail to one side inward and outward of the door body with an even hinge means from the door stop side as a fulcrum. .

In this conventional folding door, a wheel case is fixed to the lower end of each hinge means, a wheel having a peripheral groove formed on its outer periphery is pivotally supported in the wheel case, and a guide body is provided in the wheel case. The circumferential groove of the wheel and the guide body are engaged with the guide rail so that the wheel travels along the guide rail when the door body is folded.

[0004]

In this type of folding door, each door extends along the guide rails in a substantially straight line when the door main body is in the maximum extension state, and when the door main body expands and contracts, each wheel is guided by the guide rails. All the door bodies rotate around the vertical axis of each hinge means along with the movement, and each door body expands and contracts in a zigzag shape.

At the time of expansion and contraction, each door body has an odd-numbered hinge means from the door-contact side, which is separated from the door body to one side in the inside / outside direction, so that each door body moves from the guide rail to the inside / outside direction of the door body. The even-numbered hinge means is pivoted from the door stop side as a fulcrum so as to project laterally. Then, when the door body is completely folded, the even-numbered hinge means side from the door-stop side is the fulcrum, and the odd-numbered hinge means side of each door body protrudes one side from the guide rail by the width of the door body. Therefore, the center of gravity of the entire door body is largely separated from the guide rail to one side, and a moment is applied to the engaging portion between the wheel and the guide rail.

However, in the conventional folding door, one wheel with which the circumferential groove engages is provided in the wheel case at the lower end of each hinge means, and each wheel supports the entire door body. In order to resist the moment of the door body, there is a drawback that the entire structure of the door body including each door body is very simple and can be used only for a small one which is relatively light in weight.

That is, when the door body is completely folded, the maximum is the maximum, and even when the door body expands and contracts, each door body projects to one side of the guide rail, and its center of gravity is separated from the guide rail to one side. Despite the fact that the weight of the door body itself acts as a moment in the direction in which the door body falls, the conventional structure has a structure that resists the moment at the engagement portion between the wheel at the lower end of the hinge means and the guide rail. ing. Therefore, if the entire door body including each door body is large and heavy in weight, a strong moment will be applied to the engaging portion between the wheel and the guide rail. On the other hand, there is a drawback in that it cannot withstand enough.

Further, even if the moment of the door body can be resisted, the stability of the door body is poor, and moreover, the engagement portion between the wheel and the guide rail is distorted due to the moment,
There is a drawback that the operation for opening and closing the door body becomes very difficult. In view of such conventional problems, the present invention can support the door main body by the traveling means without being affected by the moment of the door main body, improves the stability regardless of the size of the door main body, and smoothes the operation at the time of opening and closing. It is also an object of the present invention to provide a ground-operated folding door that can be lightly operated.

[0009]

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. In the lower part of every other hinge means 8, traveling means 13 for traveling along the guide rails 5 laid on the ground 4 side are provided respectively, and when the door body 6 is folded, the hinge means provided with the traveling means 13 is provided. Each door body 7 is to be projected from the guide rail 5 to one side inward and outward of the door body 6 with 8 as a fulcrum.
In a ground traveling type folding door that is configured to be folded in a zigzag shape, each traveling means 13 has a guide rail 5 and a door main body.
6 is provided with wheels 54 arranged on both sides in the inner and outer directions, and the distance W ₁ between the hinge means 8 provided with the traveling means 13 and the wheel 54 on the protruding direction side of the door body 7 is defined by the hinge means 8 and the door body. large west than the distance W ₂ between 7 projecting direction of the opposite side of the wheel 54, the guide rail 5 side from the ground point of the projecting direction of the wheel 54 of the center of gravity G position of the door body 6 the door body at the time of folding It is the one.

The present invention according to claim 2 is the same as the invention according to claim 1, wherein the traveling means 13 is a wheel frame 50 arranged inside and outside the door body 6 with respect to the guide rail 5, and this wheel frame. The wheel frame 50 is provided with wheels 54 provided at both ends of the wheel frame 50.
Further, there is provided an anti-vibration member 56 which is guided by the guide rail 5 and holds the wheel frame 50 in a direction substantially perpendicular to the guide rail 5.

[0011]

According to the first aspect of the present invention, when the door body 6 is folded, the traveling means 13 are caused to travel along the guide rails 5. In the folded state, each door body 7 is guided by the hinge means 8 provided with the traveling means 13 as a fulcrum.
5 so that it projects to one side of the door body 6
Fold each door 7 in zigzag. However, each traveling means
Wheels 54 are arranged on both sides of the door body 6 in the inner and outer directions with respect to the guide rail 5, and the hinge means 13 equipped with the traveling means 13 is provided.
8 and the distance W ₁ between the wheel 54 in the projecting direction side of the door body 7, a large west than the distance W ₂ between the hinge means 8 and the wheel 54 in the projecting direction opposite to the door body 7 provided with driving means 13 , The center of gravity G of the door body 6 when folded is set to the wheel 54 on the protruding side of the door body.
Since it is located on the guide rail 5 side with respect to the ground contact point, the door body 6 can be supported by each traveling means 13.

In the present invention according to claim 2, the traveling means 13
As the vehicle travels along the guide rails 5, the anti-vibration member 56 is guided by the guide rails 5 to move the wheel frame 50 into the guide rails.
Hold at a right angle to 5. Therefore, the distances W ₁ and W ₂ between the guide rail 5 and the wheels 54 at both ends of the wheel frame 50 can be kept substantially constant.

[0013]

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.

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 door body 7 is pivotally mounted by a hinge means 8 so as to be freely foldable around the vertical axis. The door body 7 at the door stop side end is provided with the door stop side end frame 10 via the hinge means 9 at the door stop side.
Further, the door body 7 on the suspension base side is pivotally mounted on the suspension base column 1 via the hinge means 11 on the suspension base side.

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 a first kicking guide means for kicking in the third guided member 12, and 17 is a 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.

Numeral 18 is a first restricting means for guiding the third guided member 12 so that the third guided member 12 enters the guide rail 5 through the first riser guiding means 16 when the door body 6 is extended. This is for restricting the sixth door body 7 on the suspension base side of the member 12 so as not to move to the door stop side. 19 is the second
When the door body 6 is extended, the regulating means suspends the first and second guided members 12 from the guided members 12 so as to enter the guide rail 5 through the second riser guiding means 17. This is to prevent the second and fourth door bodies 7 on the original side from moving toward the door-stop side.

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 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 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.

The slopes on both sides of the guide recess 48 near the suspension base, that is, the slopes on the suspension base side, serve as the first kicking guide means 14, and the slopes on the door stop side serve as the first kicking guide means.
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.

On the wheel frame 50, 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.
Therefore, the hinge shafts 22 and 24 and the wheel 54 on the protruding side of the door body 7
The distance W ₁ between the hinge shafts 22 and 24 and the wheel 54 on the side opposite to the protruding direction of the door body 7 is larger than the distance W ₂ . The position G of the center of gravity of the door body 6 is above the guide rail 6 when the door body 6 extends, and even when the body 6 is completely folded, as shown in FIG. It is set between the grounding points of a pair of wheels 54 arranged at both ends of the wheel frame 50 so as to be closer to the guide rail 5 than the contact point of 54.

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 are substantially parallel to each other when the door body 6 is folded, and a notch portion 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, the guide rail 5 is formed of a guide roller fitted in the guide groove 38 for preventing refraction, and is rotatably fitted to the lower end of the vertical axis 71. An upper end of the vertical axis 71 is rotatably inserted into an intersecting portion of a pair of links 72, and the links 72 are flexibly and pivotally connected by the vertical axis 71. The base side of each link 72 is pivoted to a boss 73 fixed to the lower side in the vicinity of the ends of the door bodies 7 on both sides sandwiching the odd-numbered hinge means 8.
It is pivotally supported by 74. The pivot 74 is composed of a bolt or the like.

As shown in FIGS. 9 to 12, the first restricting means 18 comprises a pair of upper and lower restricting plates 77 fixed to the suspension base 1 below the upper and lower guide plates 27, and this restricting plate. A regulation projection integrally formed with each shaft member 33 of the hinge shaft 26 corresponding to the 77
It is composed of 78 and. Each regulation plate 77 has a guide plate
The long hole 79 corresponding to the upper and lower sides of the long hole 34 of 27 and through which the shaft member 33 of the hinge shaft 26 is rotatably inserted, and the long hole 79 through the long hole 79.
A rotation allowance recess 80 is formed which is recessed to the outside of 6 and allows the rotation of the restricting protrusion 78 of the shaft member 33.
The restriction projection 78 comes into contact with the door stop side of the
A regulation stepped portion 81 that regulates entry into 79 is formed.

The first restricting means 18 is the door body 6
When the third guide member 12 enters the first riser guide means 16 of the guide recess 48 at the time of extension, the restricting projection 78 of the shaft member 33 contacts the restricting step 81 and the hinge shaft 26 comes into contact with the door. The sixth door body 7 is rotated around the hinge shaft 26 toward the guide rail 5 side so that the third guided member 12 enters the first rise guide means 16 by restricting the movement toward the side. It is like this. Each regulation plate 77 is fixed to the suspension base 1 by bolts 82 together with the guide plate 27.

As shown in FIGS. 1 and 2, the second restricting means 19 includes locking projections 83 fixed to the second and fourth door bodies 7, and the locking projections 83. And a restricting member 84 for locking and disengaging. Each locking projection 83 has a door 7
It projects downward inside the door body 6 in the vicinity of the suspension base side. 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 plate 77, and the suspension base side pillar.
It is fixed inside the lower part of 1 by bolts 85.

As shown in FIGS. 9 to 12, the restricting member 84 moves to the door stop side so that the locking protrusions 83 are detachably locked on the door stop side when the door body 6 is extended. The guide member 12 is formed in the shape of a letter V in a plan view having the curved guide guide surface 86 on the door body 6 side, and when the door body 6 extends, the guided member 12 closer to the door stop than the locking projection 83 is the second kick. The movement of each door body 7 toward the door-stop side is regulated until it enters the guide recess 49 of the guide means 17. 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 thereof 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 outer 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 perpendicular 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 door stop side end frame 10 is grasped to open the door body 6.
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 restriction protrusion 78 of the shaft member 33 is aligned with the restriction step 81 of the guide plate 27.
The third guided member 12 abuts on the first kicking guide means 14 side while reaching the rotation permitting concave portion 80 side beyond.

Therefore, when the door body 6 continues to move in the direction indicated by the arrow a, as shown in FIG.
Since the 12 moves in the direction of the arrow b along the inclined surface of the first kicking guide means 14 and the third guided member 12 is kicked out from the guide recess 48 to the outside, Each door body 7 on both sides of the fifth hinge means 8 is provided with the fifth hinge means 8.
It begins to bend in a valley fold shape with the hinge axis 22 of as a fulcrum. At this time, the sixth door body 7 rotates 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 rotates the hinge shaft 22 of the fourth hinge means 8. It rotates in the direction of the arrow d with the fulcrum as the fulcrum.

However, even if the sixth door body 7 and the fifth door body 7 start to bend in this way, the hinge means 9 on the door-stop side, the second and fourth hinges, respectively. At the lower part of the means 8, there are traveling means 13 respectively, and since each traveling means 13 travels along the guide rails 5 in the direction indicated by the arrow a,
The fourth door body 7 only rotates about the hinge shaft 22 of the fourth hinge means 8, and the fourth to the door-stop side door bodies 7 are still in a straight state. Of course,
Since each guided member 12 is provided in the refraction preventing guide groove 38, each of the door bodies 7 from the fourth door stop side cannot bend 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 door The body 7 is bent in an acute angle in the vicinity of the suspension base 1 as shown in FIG. Therefore, when the door stop side is slightly opened to move in and out, 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 locking projection 83 of the second restricting means 19 passes the outside thereof without interfering with the restricting member 84. That is, when the locking projection 83 passes the tip of the regulating member 84, the second
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 locking projection 83 It passes through the outside of the tip toward the suspension base side in the direction of arrow a without interfering with the regulation member 84.

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 second 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 the straight state to the vicinity of the suspension base side and is sequentially folded in a zigzag shape from the suspension base side, each door body 7 can be folded. It is enough to secure the necessary space inside the guide rails 5 near the suspension base, and compared with the conventional guide rails 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 a space over the entire length of 5. Therefore, they can be arranged close to obstacles such as buildings, and the occurrence of dead space can be minimized.

In the folded state, the stoppers 55 of the traveling means 13 are in contact with each other and the doors 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 inside 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 is in a substantially parallel state, 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 in which the door body 6 is completely folded, each door body 7 has a hinge shaft 26 and a traveling means 13 on the hanging side.
So that the even-numbered hinge means 8 having a number of 5 are located on the guide rail 5 side, and the odd-numbered hinge means 8 side is the farthest from the guide rail 5, and protrudes inward from the guide rail 5 by the distance between the adjacent hinge means 8. To do.

However, the wheel frame 50 of each traveling means 13 is arranged in a direction substantially perpendicular to the guide rail 5, and the wheel frame 50 is
The wheels 54 are provided at both ends of the hinge shafts 22, 24, and the distance W ₁ between the hinge shafts 22, 24 and the wheels 54 on the protruding direction side of the door body 7 is set to the hinge shafts 22, 24.
And the wheel 54 on the side opposite to the protruding direction of the door body 7 is set to be larger than the distance W _2, and the center of gravity G of the door body 6 is not only during folding but also when the door body 6 is completely folded. As shown in FIG. 24, the position of the wheels on the protruding side of each door body 7
Since it is located closer to the guide rail 5 than the grounding point of 54, the traveling means 13 can stably support the door body 6 even though each door body 7 projects inward from the guide rail 5. .

Therefore, unless an external force in the falling direction acts on the door body 6, the falling prevention member of each traveling means 13 will not engage with the falling prevention rail portion 43 of the guide rail 5.
Since the moment of the door body 6 does not affect the guide rails 5, the load on the guide rails 5 can be reduced, and the operation for opening and closing the door body 6 along the guide rails 5 can be lightened and the operation of each door body can be reduced. Operations such as folding operation of 7 can be performed smoothly and lightly.

Moreover, since the wheel frame 50 of each traveling means 13 is held at a substantially right angle with respect to the guide rail 5 by the pair of anti-vibration members 56, each wheel 54 and the guide rail when the door body 6 is expanded and contracted. It is possible to prevent the moment of the door body 6 from unexpectedly acting in the falling direction during the opening and closing of the door body 6 without causing the interval between the door body 5 and the door to change in an unstable manner.

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.

When the door bodies 7 are extended from the folded state, the handle 87 of the door-stop side end frame 10 is gripped and the door-stop side frame 10 is moved in the direction of arrow e. Then, the first traveling means 13 on the door stop side moves in the direction of the arrow e along the guide rail 5, and the distance between the first traveling means 13 and the second traveling means 13 increases. Therefore, the first door body 7 and the second door body 7 rotate around the hinge shafts 22 and 24 of the hinge means 8 and 9 and extend to the linear state. And, the first door body 7 and the second door body 7
When and are in a straight line state, the second traveling means 13 moves in the direction of arrow e through the second hinge means 8, and similarly the third door body 7 and the fourth door body The body 7 and the body 7 extend straight.

In this case, before the door bodies 7 on both sides of the first and third hinge means 8 are extended to the linear state, the door bodies 7 mounted on the second and fourth door bodies 7 are attached. Locking protrusion
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 locking projection 83 mounted on the fourth door body 7 is engaged with the restricting member 84, and the fourth door body 7 is indicated by the arrow e along the guide rail 5. It shows a state of being locked so as not to move in the direction. 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 to the running guide groove 37 side of the guide rail 5 in the shape of a letter V. The locking projection 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 restriction guide surface 86 of the restriction member 84 is formed in an arc shape centering on the hinge shaft 22 of the fourth hinge means 8, the locking projection 83 and the restriction member 84 are formed. The locking protrusion 83 is smoothly guided along the regulation guide surface 86 without any occurrence of squeezing or the like. Then, when the second guided member 12 enters the guide recess 49, the locking projection 83 is disengaged from the restriction guide surface 86 of the restriction member 84 and the locked state is released, so that the fourth door is opened. The body 7 moves in the direction of the arrow e, and with this movement, the second guided member 12 comes into contact with the inclined surface of the second riser guide means 17, and then the refraction preventing guide groove is formed.
Enter 38.

On the other hand, when the locking projection 83 is locked by the restricting member 84, the restricting projection 78 of the hinge shaft 26 on the suspending side restricts the guide plate 27 as shown by the phantom line in FIG. Step 81
Since the hinge shaft 26 on the suspension base side is in contact with the regulation step
It does not move in the direction of arrow e beyond 81.

Then, if the fourth door body 7 moves in the direction of arrow e after the locking projection 83 of the fourth door body 7 is disengaged from the regulating member 84, the fifth and sixth door bodies 7 are moved. Each of the third door bodies 7 extends straight. However, since the sixth door body 7 cannot move in the direction of the arrow e, the restriction protrusion 78 remains in contact with the restriction step 81 and is integrally indicated with the hinge shaft 26 on the suspension base side by the 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 restricting projection 78 comes close to being parallel to the elongated hole 79 of the restricting plate 77 as shown in FIG. Since the regulation is lifted, 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 locks. 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. In addition to the second kicking guide means 17, the second
Until the fourth door body 7 extends by providing the regulation means 19, the first and second guided members 12 are guided by the cooperation of the second regulation means 19 and the second riser guiding means 17. Is guided to the refraction preventing guide groove 38 of the guide rail 5, the operation during extension is very smooth.

In particular, the second and fourth control means 19
The second door body 7 is temporarily locked, and the hinge shaft 22 of each of the second and fourth hinge means 8 is held in the locked state.
Since the second and fourth door bodies 7 are rotated around to guide each guided member 12 to the second riser guide means 17 in the guide recess 49, each guided member 12 is guided. It is not necessary to provide a large arc-shaped member on the ground 4 side as a guide means for guiding the guide groove 38 of the rail 5 to the refraction prevention. Moreover, the second kicking guide means 17 and the second restricting means 19 can be accommodated within the width of the guide rail 5, and the structure can be simplified and downsized, and the construction and the like are very easy.

Further, after the fourth door body 7 is extended,
With the restricting stepped part 81 of the restricting plate 77 restricting the restricting protrusion 78 to prevent the hinge shaft 26 on the suspension side from moving,
Since the sixth door body 7 is turned around to guide the third guided member 12 to the first riser guiding means 16 in the guide recess 48, the third guided member 12 is rotated. The guide rail 5
It is not necessary to provide a large arc-shaped member on the ground 4 side as a guiding means for guiding the refraction preventing guide groove 38. Moreover, the first kicking guide means 16 and the first restricting means 18 can be accommodated within the width of the guide rail 5, and the structure can be simplified and downsized, and the construction and the like are very easy.

25 and 26 illustrate a second embodiment of the present invention. 25 and 26, wheel brackets having the same shape as the outer shape of the wheel frame 50 are provided at both ends of the wheel frame 50.
This wheel bracket is mounted so that 52 covers the open end.
An axle 53 supporting a wheel 54 and a fall prevention member 57 are attached to the wheel 52. The fall prevention member 57 has an engaging portion at the lower end.
57a has an L-shaped bent shape, and its upper end is detachably fixed to the wheel bracket 52 by bolts 90 on both sides of the axle.

On the ground 4 side, auxiliary guide rails 91 are laid on both sides of the guide rail 5. Each auxiliary guide rail
Reference numeral 91 denotes a rolling rail portion 92 on which each wheel 54 rolls, and an L-shaped cross section which is recessed near the guide rail 5 side with respect to the rolling rail portion 92 and below the rolling rail portion 92. And the recessed groove portion 93 are formed over the entire length in the longitudinal direction. Then, the plate material forming the auxiliary guide rail 91 is bent and formed in a U-shaped cross section from the rolling rail portion 92 to a part of the recessed groove portion 93, and the recessed groove portion 93 of the rolling rail portion 92 is formed. At a portion corresponding to the lower side, a fall prevention rail portion 43 with which the engaging portion 57a of the fall prevention member 57 engages from below is provided.

Guide rail 5 and each auxiliary guide rail 91
Is a connecting plate arranged at a predetermined interval in the longitudinal direction.
They are connected together by 94. That is, the guide rail 5
Is fixed to the connecting plate 94 via the spacer 95.
Each auxiliary guide rail 91 is fixed to both ends of 94. The guide rails 5, 91 and the connecting plate 94 are arranged so that the upper half of the guide rail 5 projects from the ground 4 and the rolling rail portion 92 of the auxiliary guide rail 91 is flush with the ground 4. It is buried in 4. The ground 4 is made of concrete.

In this embodiment, the auxiliary guide rails 91 are provided on both sides of the guide rail 5, and when the door body 6 is opened and closed, each wheel 54 of the traveling means has the rolling rail portion 92 of the auxiliary guide rail 91.
Since it rolls up, the rolling resistance of the wheels 54 is reduced,
Opening and closing operations can be performed smoothly and lightly.

When an external force is applied to the door body 6 in the falling direction, the other side of the pair of wheels 54 tries to float up with one of the wheels 54 as a fulcrum, but the falling prevention members are provided at both ends of the wheel frame 50. 57, and the engaging portion 57 of each fall prevention member 57.
Since a is engaged with the fall prevention rail portion 43 of each auxiliary guide rail 91 from below, the engagement portion 57a of the fall prevention member 57 on the other side prevents the fall of the auxiliary guide rail 91 on the other side. The rail portion 43 is engaged from below to prevent the door body 6 from falling. Therefore, the distance between the wheel 54 on one side and the fall-preventing member 57 on the other side becomes large. Therefore, even if the gap between the fall-preventing rail portion 43 and the engaging portion 57a of the fall-preventing member 57 is the same as that of the first embodiment. Compared with the above, the inclination of the door body 6 in the falling direction can be reduced, and the load on the falling prevention member 57 and the falling prevention rail portion 43 at that time can be reduced.

On the upper side of the fall prevention rail portion 43, the plate material constituting the auxiliary guide rail 91 is bent and formed in a U-shaped cross section from the rolling rail portion 92 to a part of the recessed groove portion 93. Therefore, the strength of the fall prevention rail portion 43 itself can be sufficiently ensured. Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment. For example, the guided member 12 may be provided in the lower portion of the door body 7 in the vicinity of the odd-numbered hinge means 8. Further, the restriction member 84 of the second restriction means 19 may be mounted on the upper surface of the rail plate 36 of the guide rail 5.

In the embodiment, the number of doors 7 is an even number of 6, but an odd number of 5, 7, etc. is used, and the hinge shaft 26 of the door 7 at the end of the hanging side is set to the hanging side column 1. It is movably supported along a guide plate protruding inward from the hinge body 26 so that when the door body 6 is folded, its hinge shaft 26 moves inward from the suspension base 1 along the guide plate. Is also good. The door body is omitted by omitting the kicking guide means 14 and 15 and the kicking guide means 16 and 17.
The door body 7 may be bent around the vertical axis of each of the hinge means 8, 9 and 11 when the door 6 is expanded and contracted.

If the riser guide means 16 and 17 are formed in an arc shape along the rotation locus of the guided member 12 at the time of extension, the restricting means 18 and 19 can be omitted. Further, the guide rail 5 may be laid in a curved manner according to the conditions of the installation site within a range in which each door body 7 of the door body 6 can be bent by the hinge means 8, 9, 11.

[0082]

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. Each of the hinge means 8 is provided with a traveling means 13 that travels along a guide rail 5 laid on the ground 4 side at the lower part of the hinge means 8, and when the door body 6 is folded, the hinge means 8 is provided. Each door body 7 from the guide rail 5
In the ground traveling type folding door, which is configured to fold each door body 7 in a zigzag shape so as to project to one side in the inner and outer direction of 6,
Each traveling means 13 is provided with wheels 54 arranged on both sides of the door body 6 in the inner and outer directions with respect to the guide rails 5, and the traveling means 13 are provided.
The distance W ₁ between the hinge means 8 provided with and the wheel 54 on the protruding direction side of the door body 7 is made larger than the distance W ₂ between the hinge means 8 and the wheel 54 on the opposite side to the protruding direction of the door body 7. Since the center of gravity G of the door body 6 when folded is on the guide rail 5 side with respect to the grounding point of the wheel 54 on the protruding direction side of the door body 7,
The following remarkable effects can be achieved.

Each traveling means 13 is provided with wheels 54 arranged on both sides of the guide rail 5 in the inner and outer directions of the door body 6, and hinge means 8 provided with the traveling means 13 and wheels on the protruding direction side of the door body 7. The distance W ₁ between the wheel 54 and the hinge means 8 provided with the traveling means 13 and the wheel 54 on the side opposite to the protruding direction of the door body 7 is W ₂
Since the center of gravity G of the door body 6 when folded is closer to the guide rail 5 side than the grounding point of the wheel 54 on the protruding side of the door body 7, each door body 7 is folded.
Despite protruding from the guide rail 5 to one side,
The door body 6 can be stably supported by the traveling means 13 provided with the wheels 54 on both sides of the guide rail 5. Therefore, since the moment of the door body 6 does not affect the guide rail 5, the guide rail 5 is not affected by the size of the door body 6.
The load of 5 can be reduced, and the door body 6 can be
The operation at the time of expanding and contracting along 5 to open and close becomes light, and the operation at the time of opening and closing, such as the folding operation of each door 7, can be performed smoothly and lightly.

The distance W ₁ between the hinge means 8 equipped with the traveling means 13 and the wheel 54 on the protruding direction side of the door body 7 is set to the distance W ₁ on the side opposite to the protruding direction of the hinge means 8 equipped with the traveling means 13 and the door body 7. Wheel
Since the larger than the distance W ₂ between 54, while reducing the space between the wheels 54, it is possible to increase the said distance W _1, to set the center of gravity G position of the door body 6 easily be able to.

Since the distance W ₁ is larger than the distance W ₂ and the wheels 54 on the protruding direction side of the door body 7 are separated from the hinge means 8, the width of each door body 7 can be increased. ,
Even with the door body 6 having the same length, the number of the door bodies 7 can be reduced.

According to the second aspect of the present invention, in the first aspect of the invention, the traveling means 13 includes the guide rail 5
With respect to the wheel frame 50 arranged inside and outside the door body 6,
This wheel frame 50 is provided with wheels 54 provided at both ends thereof, and is a vibration damping member which is guided to the wheel frame 50 by the guide rails 5 and holds the wheel frame 50 in a direction substantially perpendicular to the guide rails 5.
Since 56 is provided, the following remarkable effects can be achieved.

Since the wheel frame 50 is held at a substantially right angle to the guide rail 5 by the vibration isolator 56, the distance between the wheels 54 and the guide rail 5 may change in an unstable manner when the door body 6 expands and contracts. The stability is improved when the door body 6 is opened and closed.

Anti-vibration member guided by the guide rails 5
Since the wheel frame 50 is held by the 56 in a direction substantially perpendicular to the guide rails 5, the structure on the guide rail 5 side can be compared to the case where the pair of wheels 54 is guided and held by the guide rails 5. It can be simplified. The structure of the traveling means 13 is simple.

[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 side view of the folded state of the first embodiment of the present invention.

FIG. 25 is a side view of the traveling means showing the second embodiment of the present invention.

FIG. 26 is a plan view of a traveling means showing a second embodiment of the present invention.

[Description of sign]

4 Ground 5 Guide rail 6 Door body 7 Door body 8 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 22 Hinge shaft 50 Wheel frame 54 Wheel 56 Anti-vibration member G Center of gravity W ₁ , W ₂ spacing

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). At the lower part of every other, there is provided a traveling means (13) for traveling along a guide rail (5) laid on the ground (4) side, and when the door body (6) is folded, the traveling means (13) is provided. Zigzag each door body (7) so that each door body (7) projects from the guide rail (5) to one side inward and outward of the door body (6) with the hinge means (8) provided as a fulcrum. In the folding-type ground traveling type folding door, each traveling means (13) is provided with wheels (54) arranged on both sides of the door body (6) inward and outward with respect to the guide rail (5). The distance (W ₁ ) between the hinge means (8) provided with (13) and the wheel (54) on the protruding direction side of the door body (7) is defined by the hinge means (8) and the door body.
The distance (W ₂ ) from the wheel (54) on the side opposite to the protruding direction of (7) is made larger, and the position of the center of gravity (G) of the door body (6) when folded is set to the protruding direction of the door body (7). A ground-traveling folding door characterized in that it is located on the guide rail (5) side with respect to the grounding point of the side wheel (54). 2. The traveling means (13) is provided on a wheel frame (50) arranged inward and outward of the door body (6) with respect to the guide rail (5) and on both ends of the wheel frame (50). An anti-vibration member (56) provided with a wheel (54), guided by the guide rail (5) to the wheel frame (50), and holding the wheel frame (50) in a direction substantially perpendicular to the guide rail (5). The ground traveling folding door according to claim 1, wherein the folding door is provided.