JP2017125335A - Folding door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folding door device enabling countermeasures against a clearance generated at a section near a corner part of a frame body to be effectively taken.SOLUTION: A corner part 34 is formed between a first rail part and a second rail part of a frame body 20 of a folding door device. A first folding door 18(A) is slidably disposed on the first rail part along with folding motion. A second folding door 18(B) is slidably disposed on the second rail part along with folding motion. A first rotor 22 is rotated by external force, enabling a first seal portion 22d to butt against a first end edge 18f of the first folding door 18. A first cover body 24 is disposed at an end of the first rotor 22 on a corner part 34 side. The first cover body 24 covers a clearance 48 formed between the second folding door 18(B) and the frame body 20 from depth direction of the second folding door 18(B) when the first seal portion 22d of the first rotor 22 is located at a seal position where the first seal portion is butted against the first end edge 18f.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a folding door device using a plurality of folding doors.

  Conventionally, a folding door apparatus using a plurality of folding doors is known. The folding door device normally includes a frame having a pair of upper and lower rail portions and a plurality of folding doors that are slidable with a folding operation and an extension operation with respect to the set of rail portions.

  In this type of folding door apparatus, there is a case where a gap is generated between the folding door and the lower rail portion when the plurality of folding doors are extended and closed between a pair of rail portions. As a countermeasure, in the folding door device of Patent Document 1, a rotatable seal body is attached to the lower rail frame. When the plurality of folding doors are in the closed state, the rotary seal body can be brought into contact with the lower arm of the folding door, and the airtightness of the indoor space is easily maintained.

JP 2006-037424 A

  By the way, for example, the frame part of the folding door apparatus used for a garden room has a corner part formed between a plurality of rail parts. As a result of studies by the present inventor, it has been found that when the frame has a corner portion as described above, a gap is likely to be generated between the frame and the folding door at a location near the corner portion of the frame. Such gaps cause gap winds, rainwater, light, and the like to enter the indoor space, and therefore need to be improved. Considering this point, the folding door device of Patent Document 1 has a structure in which the frame body does not have a corner portion in the first place, and no measures are taken against such a gap generated near the corner portion.

  This invention is made | formed in view of such a subject, The objective is to provide the folding door apparatus which can aim at the countermeasure against the clearance gap produced in the location near the corner part of a frame effectively.

The aspect with this invention for solving the said subject is a folding door apparatus.
A folding door device according to a first aspect includes a first rail portion and a second rail portion, a frame having a corner portion formed between the first rail portion and the second rail portion, and the first rail portion. A first folding door slidably provided with a folding operation with respect to the second folding door slidably provided with a folding operation with respect to the second rail portion, and rotating by receiving an external force, A first rotating body capable of abutting a first seal portion on a first end edge portion on one side in the up-down direction of one folding door, and a first cover provided at an end portion of the first rotating body on the corner portion side And the first cover body is in a sealing position where the first seal portion of the first rotating body is abutted against the first end edge portion, and the second folding door and the frame body So as to cover the gap formed between the second folding door from the expected direction. And characterized in that it is.

  According to the folding door device of the first aspect, by covering the gap between the second folding door and the frame with the first cover body, the entry of the shielding target into the indoor space from a location near the corner of the frame is suppressed. It is done.

It is a perspective view which shows the folding door apparatus of this embodiment. It is a top view which shows a part of folding door apparatus. FIG. 3 is an enlarged view of FIG. 2. It is a top view which shows a part of frame. It is the figure which looked at the corner vertical frame of a frame from the arrow Vp1 of FIG. It is the sectional view on the AA line of FIG. It is a figure which shows the operation state of the 1st rotary body seen from the same viewpoint as FIG. It is a figure which shows the operation state of the 1st rotary body seen from the same viewpoint as FIG. FIG. 4 is a sectional view taken along line BB in FIG. 3. FIG. 10A is a view of the first cover body viewed from the direction of the arrow Vp2 in FIG. 8 when the first rotating body is in the sealing position, and FIG. 10B is a perspective view of the first cover body. It is. It is CC sectional view taken on the line of FIG. It is a figure which shows the operation state of the 1st rotary body and the 2nd rotary body seen from the same viewpoint as FIG. FIG. 13A is a perspective view of the second cover body, and FIG. 13B is another perspective view of the second cover body. It is the figure seen from the indoor side of the folding direction. Fig.15 (a) is the perspective view which looked at the movable part of the 2nd lock mechanism from the lower side, FIG.15 (b) is the DD sectional view taken on the line of FIG. It is a figure which shows typically a 2nd lock part, an external force provision part, a lock hole, and a 1st outer side accommodating part. It is a perspective view which shows operation | movement of an external force provision mechanism.

  Hereinafter, in the embodiment and the modification, the same reference numerals are given to the same components, and the duplicate description is omitted. In the drawings, for convenience of explanation, some of the components are omitted as appropriate, and the dimensions of the components are appropriately enlarged and reduced.

FIG. 1 is a perspective view showing a folding door apparatus 10 of the present embodiment.
The folding door device 10 of this embodiment is used for a garden room 12. The garden room 12 includes a plurality of support columns 14, a roof 16 supported by the plurality of support columns 14, and a folding door device 10 disposed below the roof 16. The folding door device 10 has a function of partitioning into an indoor space inside thereof and an outdoor space outside them when all the first folding doors 18 (A) and the second folding doors 18 (B) described later are in an extended state. It has.

FIG. 2 is a plan view showing a part of the folding door apparatus 10. FIG. 3 is an enlarged view of FIG. 2 and 3, a part of the corner vertical frame 40 of the frame body 20 (described later) (second operation unit 64) is omitted.
The folding door device 10 mainly includes a frame body 20, a plurality of first folding doors 18 (A), a plurality of second folding doors 18 (B), a first rotating body 22 (A), and a second rotating body 22. (B), the 1st cover body 24, and the 2nd cover body 26 are provided. Hereinafter, different constituent elements having a lot of common points are distinguished by adding (A) and (B) to the end of the reference numerals, and these reference numerals are omitted when collectively referred to. The folding door device 10 of the present embodiment has one of the main features of the first cover body 24 and the second cover body 26, but will be described first from the peripheral structure.

(Frame)
FIG. 4 is a plan view showing a part of the frame body 20.
The frame 20 is framed by a plurality of frames. The frame includes a pair of upper and lower first rail frames 28 (A) and a pair of upper and lower second rail frames 28 (B). The first rail frame 28 (A) and the second rail frame 28 (B) are arranged with their end portions abutted against each other. In addition, the frame includes a pair of upper and lower corner frames 30 connected to the abutting portion between the adjacent first rail frame 28 (A) and second rail frame 28 (B). This figure shows only the lower frame. The first rail frame 28 (A) includes a lower first lower rail frame 28 (A), and the second rail frame 28 (B) includes a lower second lower rail frame 28 (B). Is included.

  The frame body 20 includes a pair of upper and lower first rail portions 32 (A), a second rail frame 28 (B), and a corner formed in a range extending over the first rail frame 28 (A) and the corner frame 30. A pair of upper and lower second rail portions 32 (B) formed in a range straddling the frame 30. Each of the rail portions 32 (A) and 32 (B) has a groove shape extending linearly. The first rail portion 32 (A) of the present embodiment is linearly arranged at a position corresponding to the rectangular first side, and the second rail portion 32 (B) is two second adjacent to the rectangular first side. It is arranged linearly at a position corresponding to each side. FIG. 4 shows only one lower first rail portion 32 (A) and one lower second rail portion 32 (B). A corner portion 34 is formed between the first rail portion 32 (A) and the second rail portion 32 (B).

  As shown in FIG. 1, a plurality of first folding doors 18 (A) are housed between a pair of first rail portions 32 (A), and a plurality of first rail portions 32 (B) are disposed between a pair of second rail portions 32 (B). The second folding door 18 (B) is stored. In the present embodiment, four first folding doors 18 (A) and two second folding doors 18 (B) are accommodated.

  The first rail portion 32 (A) and the second rail portion 32 (B) have a slide path that is continuous between each other. The first folding door 18 (A) and the second folding door 18 (B) are provided so as to be slidable along the slide path. Thereby, all the folding doors 18 can be slid so as to go back and forth between the first rail portion 32 (A) and the second rail portion 32 (B). For this reason, all the folding doors 18 can be arranged in a state of being folded and gathered on the end side of the slide path (the side opposite to the corner portion 34 of the second rail portion 32 (B)).

  As shown in FIG. 4, the frame 20 includes a groove-shaped first inner housing portion 36 (A) formed on the first lower rail frame 28 (A), and a second lower rail frame 28 (B). And a groove-shaped second inner housing portion 36 (B) formed in the shape. The first inner housing portion 36 (A) is for housing the hollow portion 22 b (described later) of the first rotating body 22 (A), and the second inner housing portion 36 (B) is the second rotating body 22. This is for accommodating the hollow part 22b (described later) of (B). The first inner housing portion 36 (A) and the second inner housing portion 36 (B) are provided so as to be continuous at a location near the corner portion 34 of the frame body 20.

  The frame 20 includes a groove-shaped first outer housing portion 38 (A) formed in the first lower rail frame 28 (A) and the corner vertical frame 40, a second lower rail frame 28 (B), and a corner. And a groove-shaped second outer housing portion 38 (B) formed in the vertical frame 40. The first outer housing portion 38 (A) is for housing an external force receiving portion 22 c (described later) of the first rotating body 22 (A), and the second outer housing portion 38 (B) is the second rotating body. This is for accommodating the external force receiving portion 22c (described later) 22 (B). The first outer housing portion 38 (A) and the second outer housing portion 38 (B) are provided so as to be continuous at a location near the corner portion 34 of the frame body 20.

FIG. 5 is a view of the corner vertical frame 40 of the frame body 20 as viewed from an arrow Vp1 in FIG.
As shown in FIGS. 3 and 5, the frame body 20 further includes a corner vertical frame 40 disposed in the corner portion 34. The corner vertical frame 40 is also one of the frames that frame the frame body 20. The corner vertical frame 40 includes a slider 42 that can slide with respect to the first rail portion 32 (A) and the second rail portion 32 (B). Thereby, the corner vertical frame 40 is also provided slidable along the slide path | route continuous between the 1st rail part 32 (A) and the 2nd rail part 32 (B) similarly to the folding door 18. FIG.

(First folding door 18 (A) and second folding door 18 (B))
Since the first folding door 18 (A) and the second folding door 18 (B) have the same configuration in many respects, the same components are denoted by the same reference numerals, and redundant description is omitted. In this specification, it is sometimes referred to as a prospective direction of the first folding door 18 (A) or the second folding door 18 (B), but this means that the first folding door 18 (A) or the second folding door 18 (B) in an extended state. Depth direction when viewed from the front.

  As shown in FIGS. 1 and 2, the folding door 18 has two door bodies 18a. The door 18a includes a panel 18b such as a glass panel, and a flange 18c provided so as to surround the four circumferences of the panel 18b. The two door bodies 18a are arranged so that the end portions in the width direction face each other in the same direction, and the opposite end portions are connected via a hinge mechanism 18d. Thereby, the two door bodies 18a are connected so as to be foldable via the hinge mechanism 18d.

6 is a cross-sectional view taken along line AA in FIG.
As shown in FIGS. 2 and 6, a slider 18 e slidable along the upper and lower rail portions 32 of the frame 20 is provided at the end opposite to the opposite end in the width direction of the two doors 18 a. Is attached. Thereby, the two door bodies 18a are provided to be slidable with respect to the upper and lower rail portions 32. With the above configuration, the first folding door 18 (A) is provided so as to be slidable with a folding operation and an extension operation with respect to the upper and lower first rail portions 32 (A). The second folding door 18 (B) is provided so as to be slidable with a folding operation and an extension operation with respect to the upper and lower second rail portions 32 (B).

  As shown in FIGS. 3 and 6, the second folding door 18 (B) and the corner frame 30 adjacent to the corner vertical frame 40 have elasticity at locations facing the second folding door 18 (B) in the width direction. Vertical seal members 44 are individually mounted. It can be said that the vertical seal member 44 is mounted at the summing location of the corner vertical frame 40 and the second folding door 18 (B).

(First rotating body 22 (A))
As shown in FIG. 6, the first rotating body 22 (A) is rotatably attached to a first lower rail frame 28 (A) that is one of the frames that form the first rail portion 32 (A). Specifically, the first lower rail frame 28 (A) has a columnar shape on the indoor side (right side in FIG. 6) in the expected direction of the first folding door 18 (A) with respect to the first rail portion 32 (A). A shaft portion 46 is formed. The first rotating body 22 (A) has a bearing portion 22a that is rotatably supported by the shaft portion 46 of the first lower rail frame 28 (A), and the first lower rail is provided via the bearing portion 22a. It is rotatably attached to the frame 28 (A).

  In addition to the bearing portion 22a, the first rotating body 22 (A) has a hollow portion 22b disposed on the indoor side in the expected direction of the first folding door 18 (A) with respect to the bearing portion 22a, and the bearing portion 22a. And the external force receiving portion 22c disposed on the outdoor side (left side in FIG. 6) in the expected direction of the first folding door 18 (A). The first rotating body 22 (A) is an extruded product in which these parts are integrally formed using a metal such as aluminum as a raw material. The hollow portion 22b is housed in the first inner housing portion 36 (A) of the first lower rail frame 28 (A), and the external force receiving portion 22c is housed in the first outer housing of the first lower rail frame 28 (A). Part 38 (A) is accommodated.

  The hollow portion 22b includes a first side surface portion 22ba, a second side surface portion 22bb, and a peripheral surface portion 22bc, and forms a fan shape. The first side surface portion 22ba extends in a direction away from the rotation axis Rc of the first rotating body 22 (A) and faces one side of the rotation direction (counterclockwise direction in the drawing, hereinafter referred to as a positive rotation direction). Provided. A first seal portion 22d is provided at a portion of the first side surface portion 22ba facing the normal rotation direction. 22 d of 1st seal parts are comprised by the 1st horizontal seal member with the elasticity with which 1st side part 22ba is mounted | worn. The second side surface portion 22bb extends in a direction away from the rotation axis Rc of the first rotating body 22 (A) and is provided so as to face the other side of the rotation direction (clockwise direction in the figure, hereinafter referred to as a reverse rotation direction). It is done. The peripheral surface portion 22bc is connected to the outer peripheral end portions of the first side surface portion 22ba and the second side surface portion 22bb and has an arc shape, that is, a peripheral shape. Since the circumferential surface portion 22bc is formed in an arc shape, when the first rotating body 22 (A) rotates, the clearance between the first inner housing portion 36 (A) and the inner wall surface 36a facing the expected direction is easily made constant. It becomes easy to suppress the intrusion of foreign matter.

  The external force receiving portion 22c has a plate shape extending from the bearing portion 22a of the first rotating body 22 (A) to the outdoor side in the expected direction of the first folding door 18 (A). The external force receiving portion 22c is for receiving an external force applied by an external force applying mechanism 70 described later.

FIG. 7 is a diagram illustrating an operation state of the first rotating body 22 (A) viewed from the same viewpoint as FIG. FIG. 8 is a diagram illustrating an operation state of the first rotating body 22 (A) viewed from the same viewpoint as FIG.
The first rotating body 22 (A) receives an external force applied from an external force applying mechanism 70, which will be described later, by the external force receiving portion 22c, so that the first rotating body 22 (A) rotates around the shaft portion 46 of the first lower rail frame 28 (A). Rotate to. Thereby, the first rotating body 22 (A) is accommodated in the first inner housing from the initial position where the hollow portion 22 b is accommodated in the first inner housing portion 36 (A) of the first lower rail frame 28 (A). It moves out of the part 36 (A) and moves to a seal position where the first seal part 22d is abutted against the lower end edge part 18f (first end edge part) of the first folding door 18 (A). When the first rotating body 22 (A) is in the sealing position, the first seal portion 22d of the first rotating body 22 (A) is abutted along the width direction of the first folding door 18 (A), and the first The space between the folding door 18 (A) and the first rotating body 22 (A) is sealed. When the application of the external force from the external force applying mechanism 70 is cancelled, the first rotating body 22 (A) rotates in the reverse rotation direction due to the weight of the hollow portion 22b and moves from the seal position to the initial position.

  As shown in FIG. 6, in the first rotating body 22 (A), the upper surface portion 22e facing the upper side when in the initial position has the same height as the upper surface portion 28a of the first lower rail frame 28 (A). And is provided so as to extend in a flat shape in the expected direction of the first folding door 18 (A). The upper surface portion 22e of the first rotating body 22 (A) of the present embodiment is configured by the bearing portion 22a, the external force receiving portion 22c, and the first side surface portion 22ba of the first rotating body 22 (A). The flat shape in this specification means that there is no step of more than 1 cm toward the expected direction of the first folding door and extends in the expected direction of the first folding door 18 (A).

(Second rotating body 22 (B))
As shown in FIG. 3, the second rotary body 22 (B) abuts the end face in the longitudinal direction against the end of the first rotary body 22 (A) on the corner 34 side of the frame body 20. Placed in position.

9 is a cross-sectional view taken along line BB in FIG.
Many of the components that the second rotating body 22 (B) has in relation to the second lower rail frame 28 (B) are the first rotating body 22 (A) and the first lower rail frame 28 (A). It is common to the components that have the relationship of Constituent elements of the second rotating body 22 (B) that are common to the first rotating body 22 (A) are assigned the same reference numerals, and descriptions thereof are omitted.

  A shaft portion 46 is formed on the second lower rail frame 28 (B), which is one of the frames forming the second rail portion 32 (B), in the same manner as the first lower rail frame 28 (A). Similar to the first rotating body 22 (A), the second rotating body 22 (B) is rotatably attached to the second lower rail frame 28 (B) via the bearing portion 22a.

  Similar to the first rotating body 22 (A), the second rotating body 22 (B) includes a hollow portion 22 b and an external force receiving portion 22 c in addition to the bearing portion 22 a. The hollow portion 22b is housed in the second inner housing portion 36 (B) of the second lower rail frame 28 (B), and the external force receiving portion 22c is housed in the second outer housing of the second lower rail frame 28 (B). Part 38 (B).

  The hollow portion 22b of the second rotating body 22 (B) includes a first side surface portion 22ba, a second side surface portion 22bb, and a circumferential surface portion 22bc, like the first rotating body 22 (A). A second seal portion 22f is provided at a portion of the first side surface portion 22ba facing the normal rotation direction. The second seal portion 22f is configured by a second horizontal seal member having elasticity attached to the first side surface portion 22ba.

  The second rotating body 22 (B) receives an external force applied from an external force applying mechanism 70 described later by the external force receiving portion 22c, so that the second rotating body 22 (B) rotates in the positive rotation direction around the shaft portion 46 of the second lower rail frame 28 (B). Rotate to. Accordingly, the second rotating body 22 (B) is accommodated in the second inner housing from the initial position where the hollow portion 22b is accommodated in the second inner housing portion 36 (B) of the second lower rail frame 28 (B). It moves out of the part 36 (B) and moves to a seal position where the second seal part 22f is abutted against the lower end edge part 18g (second end edge part, see FIG. 6) of the second folding door 18 (B). When the second rotating body 22 (B) is in the sealing position, the second seal portion 22f of the second rotating body 22 (B) is abutted along the width direction of the second folding door 18 (B), and the second The space between the folding door 18 (B) and the second rotating body 22 (B) is sealed. When the external force applied from the external force applying mechanism 70 is unlocked, the second rotating body 22 (B) rotates in the reverse rotation direction due to the weight of the hollow portion 22b and moves from the seal position to the initial position.

(First cover body 24)
FIG. 10A is a view of the first cover body 24 viewed from the direction of the arrow Vp2 in FIG. 8 when the first rotating body 22A is in the sealing position, and FIG. 3 is a perspective view of a cover body 24. FIG.
As shown in FIGS. 7, 8, and 10, the first cover body 24 is press-fitted into the end portion of the first hollow portion 22 b of the first rotating body 22 (A) on the corner portion 34 side of the frame body 20. A first press-fit portion 24a. The first cover body 24 is provided on the corner portion 34 side of the frame body 20 by press-fitting the first press-fit portion 24a into the first hollow portion 22b of the first rotary body 22 (A). It is provided in the edge part of this so that attachment or detachment is possible. As a result, the first cover body 24 rotates around the rotation axis Rc of the first rotating body 22 (A) together with the first rotating body 22 (A).

  The 1st cover body 24 has the 1st cover part 24b arrange | positioned at the corner part 34 side of the frame 20 from the hollow part 22b of the 1st rotary body 22 (A). The first cover part 24b has a plate shape. When viewed from one side (the viewpoint in FIG. 7) in the rotation axis direction of the first rotating body 22 (A), the first cover portion 24 b is from the peripheral surface portion 22 bc of the hollow portion 22 b of the first rotating body 22 (A). It is formed so as to spread over the outer peripheral side range. This means that when viewed from this point of view, the first rotating body 22 (A) is formed so as to extend in a range on the outer peripheral side with respect to the rotation axis Rc of the first rotating body 22 (A). To do.

  As shown in FIG. 6, a gap 48 is formed between the second folding door 18 (B) and the frame body 20. The gap 48 is formed at the corner formed between the corner vertical frame 40 of the frame 20 and the second lower rail frame 28 (B), and the corner vertical frame 40 and the second lower rail frame 28 (B). And the second folding door 18 (B). Specifically, the gap 48 includes the vertical seal member 44 of the corner vertical frame 40, the vertical seal member 44 of the second folding door 18 (B) adjacent to the corner vertical frame 40, and the second lower rail frame of the frame body 20. 28 (B).

  As shown in FIGS. 7 and 8, the first cover portion 24 b is formed between the second folding door 18 (B) and the frame body 20 when the first rotating body 22 (A) is in the sealing position. The gap 48 is provided so as to cover from the indoor side (one side, the right side in FIG. 8) in the expected direction of the second folding door 18 (B). By covering the gap 48 with the first cover body 24, it is possible to suppress the entry of shielding objects such as a draft, rainwater, and light into the indoor space from a location near the corner portion 34 of the frame body 20.

11 is a cross-sectional view taken along the line CC of FIG.
A gap 50 is formed between the first folding door 18 (A) and the frame body 20. The gap 50 is formed between the corner vertical frame 40 or the first lower rail frame 28 (A) and the first folding door 18 (A).

FIG. 12 is a diagram illustrating an operation state of the first rotating body 22 (A) and the second rotating body 22 (B) viewed from the same viewpoint as FIG. 11.
As shown in FIGS. 8, 11, and 12, the first rotating body 22 (A) includes the first folding door 18 (A), the frame body 20, and the frame body 20 when the first rotating body 22 (A) is in the sealing position. A gap 50 formed between the first folding door 18 (A) is provided so as to cover from the indoor side (upper side in FIG. 8) in the expected direction of the first folding door 18 (A). At this time, the first rotating body 22 (A) is provided so as to cover a range straddling the lower end edge 18f of the first folding door 18 (A) and the corner vertical frame 40 from the expected direction of the first folding door 18 (A). It is done. Accordingly, the first folding door 18 (A) and the first folding door 18 (A) are covered with the first cover body 24 while the gap 48 between the second folding door 18 (B) and the frame body 20 is covered at a location near the corner portion 34 of the frame body 20. The gap 50 between the frame body 20 can also be covered by the first rotating body 22 (A). Therefore, it is possible to effectively prevent the shielding object from entering the indoor space from the portion of the frame body 20 near the corner portion 34.

(Second cover body 26)
FIG. 13A is a perspective view of the second cover body 26, and FIG. 13B is another perspective view of the second cover body 26.
As shown in FIGS. 8, 9, and 13, the second cover body 26 is press-fitted into the end portion of the hollow portion 22 b of the second rotating body 22 (B) on the corner portion 34 side of the frame body 20. It has 2 press-fit parts 26a. The second cover body 26 has an end of the second rotating body 22 (B) on the corner 34 side of the frame body 20 by press-fitting the second press-fit portion 26 a into the hollow portion 22 b of the second rotating body 22 (B). It is provided in the part so that attachment or detachment is possible. Thereby, the 2nd cover body 26 rotates to the surroundings of the rotating shaft line Rc of 2nd rotary body 22 (B) integrally with 2nd rotary body 22 (B).

  As shown in FIGS. 8, 12, and 13, the second cover body 26 is disposed on the corner portion 34 side of the frame body 20 from the hollow portion 22 b of the second rotating body 22 (B). Have The second cover portion 26b has a circumferential peripheral wall portion 26c provided around the rotation axis Rc of the second rotating body 22 (B). When the second rotating body 22 (B) is in the sealing position, the peripheral wall portion 26 c of the second cover portion 26 b allows the clearance 48 between the second folding door 18 (B) and the frame body 20 to be the second folding door 18 (B ) Is provided so as to cover from the indoor side in the expected direction.

  As shown in FIGS. 7 and 8, the peripheral wall portion 26 c of the second cover portion 26 b has the first rotating body 22 (A) in the sealing position and the second rotating body 22 (B) in the sealing position. With respect to the 1st cover part 24b of the 1st cover body 24, it is provided so that a part may exist in the position which overlaps with the expected direction of the 2nd folding door 18 (B). Thus, when viewed from the indoor side (viewpoint in FIG. 7) in the expected direction of the second folding door 18 (B), a gap exposed to the indoor side is hardly generated between the first cover portion 24b and the second cover portion 26b. Become. Therefore, it is possible to effectively prevent the shielding object from entering the indoor space from the portion of the frame body 20 near the corner portion 34.

  As shown in FIG. 8, the case where the 1st rotary body 22 (A) exists in a seal position, and the 2nd rotary body 22 (B) exists in a seal position is considered. At this time, the 1st cover part 24b and the 2nd cover part 26b are the range which straddles the lower end edge part 18g and the corner vertical frame 40 of the 2nd folding door 18 (B) in the width direction of the 2nd folding door 18 (B). It is provided so as to cover from the expected direction of the second folding door 18 (B).

  As shown in FIGS. 8 and 13, the peripheral wall portion 26 c of the second cover portion 26 b is an end portion on the corner portion 34 side of the frame body 20, and is on the positive rotation direction side of the second rotating body 22 (B). A notch 26d is formed at the end of the. The notch 26d is shaped so as to avoid the first cover portion 24b of the first cover body 24 when the first rotating body 22 (A) is in the sealing position and the second rotating body 22 (B) is in the sealing position. is there. The notch 26d has a notch surface 26e that faces the outer peripheral surface of the first cover portion 24b in the rotation axis direction (vertical direction in FIG. 8) of the second rotating body 22 (B). The peripheral wall portion 26c of the second cover portion 26b is provided such that a part of the peripheral wall portion 26c overlaps with the first cover portion 24b in the rotational axis direction of the second rotating body 22 (B). Thereby, the clearance gap 52 (refer also FIG. 12) in the expected direction of the 2nd folding door 18 (B) between the 2nd cover part 26b and the 2nd folding door 18 (B) is narrowed. Therefore, it is possible to effectively prevent the shielding object from entering the indoor space from the portion of the frame body 20 near the corner portion 34.

  The second cover portion 26 b of the second cover body 26 is formed so as to avoid the rotation trajectory of the first cover body 24. The rotation locus here is when the first cover body 24 rotates together with the first rotating body 22 (A) until the first rotating body 22 (A) moves from the initial position to the seal position. The trajectory. In order to realize this, the second cover portion 26b has a shape in which there is no other portion on the inner peripheral side of the peripheral wall portion 26c of the second cover portion 26b. Thereby, when the 1st cover body 24 rotates integrally with the 1st rotary body 22 (A), the contact with the 2nd cover body 26 and the 1st cover body 24 can be prevented.

  According to the folding door device 10 described above, the entry of the shielding target into the indoor space from the location close to the corner portion 34 of the frame body 20 can be effectively suppressed, and countermeasures for the gaps 48 and 50 generated at the location are effectively prevented. I can plan.

Next, other features of the folding door device 10 of the present embodiment will be described. FIG. 14 is a view of the folding door 18 as viewed from the indoor side in the expected direction.
The folding door 18 has a first lock mechanism 60 that can lock the folding operation. The first lock mechanism 60 includes a first operation part 60 a used for switching the presence or absence of locking by the first lock mechanism 60 and a rod-like first lock part 60 b inserted into the flange 18 c of the folding door 18. The 1st operation part 60a is exposed to the outer surface of the collar 18c of the folding door 18, and is provided so that a vertical motion is possible with respect to the collar 18c. The 1st lock part 60b is provided so that a load can be transmitted between the 1st operation parts 60a. The first lock portion 60b moves up and down in the direction Pa in conjunction with the first operation portion 60a, and is inserted into and removed from the lower rail portion 32 of the frame body 20 (see FIG. 6). FIG. 6 shows a state in which the first lock portion 60 b is inserted into the lower rail portion 32.

  The first lock mechanism 60 is in a locked state in which the folding operation of the folding door 18 is locked when the first lock portion 60b is at the position where the lower rail portion 32 is inserted (position in FIG. 6). On the other hand, when the first lock portion 60b is in the position (the position in FIG. 14) extracted from the lower rail portion 32, the lock is released to allow the folding door 18 to be folded.

  As shown in FIG. 5, the corner vertical frame 40 includes a hollow and long frame member 40 a and a second lock mechanism 62 that can lock the position of the frame body 20 with respect to the corner portion 34. The frame member 40a is formed with a notch 40b for avoiding interference with the rotating bodies 22 (A) and 22 (B) (see also FIGS. 3 and 6).

FIG. 15A is a perspective view of a movable portion 66 (described later) of the second lock mechanism 62 as viewed from below, and FIG. 15B is a cross-sectional view taken along the line DD in FIG. In FIG. 15B, the outer shape of the movable portion 66 is indicated by a two-dot chain line.
As shown in FIGS. 5 and 15, the second lock mechanism 62 is inserted into the frame member 40 a and slidable while being inserted into the second operation portion 64 used for switching the presence or absence of the lock by the second lock mechanism 62. A movable portion 66 to be fitted and a rod-like second lock portion 68 protruding from the movable portion 66 are provided. The 2nd operation part 64 is exposed to the location which faces the indoor space of the frame member 40a, and is provided so that a vertical motion is possible with respect to the frame member 40a. The movable part 66 and the second lock part 68 are provided so as to be able to transmit a load to and from the second operation part 64.

  As shown in FIG. 4, among the frames in which the pair of first rail portions 32 (A) is formed, the lower corner frame 30, which is a frame other than the corner vertical frame 40 of the frame body 20, has a lock hole. 30a is formed.

FIG. 16 is a diagram schematically showing the second lock portion 68, the external force applying portions 72 (A), 72 (B) (described later), the lock hole 30a, and the first outer housing portion 38 (A).
As shown in FIGS. 5 and 16, the second lock portion 68 moves up and down in the direction Pb in conjunction with the second operation portion 64 to be inserted into and removed from the lock hole 30 a of the lower corner frame 30. As shown in FIG. 16 (b), the second lock mechanism 62 determines the position of the corner vertical frame 40 relative to the corner portion 34 of the frame body 20 when the second lock portion 68 is at the position inserted into the lock hole 30 a. It becomes the lock state to lock. On the other hand, as shown in FIG. 16 (a), when the second lock portion 68 is in the position extracted from the lock hole 30a, unlocking that allows the corner vertical frame 40 to slide with respect to the corner portion 34 of the frame body 20 is performed. It becomes a state.

  As shown in FIG. 5, the folding door device 10 operates independently without being interlocked with the first locking mechanism 60 of the folding door 18, so that the first rotating body 22 (A) and the second rotating body 22 (B ) Is provided with an external force applying mechanism 70 capable of applying an external force for rotation. The external force imparting mechanism 70 operates in conjunction with the second lock mechanism 62, and the second operation unit 64 and the movable unit 66 that are components of the second lock mechanism 62 are shared with the second lock mechanism 62. Yes. That is, the external force applying mechanism 70 also includes the second operation unit 64 and the movable unit 66 described above. The second operation unit 64 is also used for switching whether or not external force is applied by the external force applying mechanism 70.

  As shown in FIGS. 5 and 15, the external force applying mechanism 70 has external force applying portions 72 (A) and 72 (B) protruding from the movable portion 66. The external force applying portions 72 (A) and 72 (B) include a first external force applying portion 72 (A) formed by one protrusion and a second external force applying portion 72 (B) formed by another protrusion. It is included. The 1st external force provision part 72 (A) and the 2nd external force provision part 72 (B) make the shape which connected two protrusions.

FIG. 17 is a perspective view showing the operation of the external force applying mechanism 70.
As shown in FIGS. 16 and 17, the first external force imparting portion 72 (A) moves up and down in the same direction as the second operating portion 64, and is inserted and removed with respect to the first outer accommodating portion 38 (A). It contacts / separates with respect to the external force receiving part 22c of 1 rotary body 22 (A) (refer also FIG. 7). Here, “contact and separation” means contact and separation. The 1st external force provision part 72 (A) provides the external force for rotating to the 1st rotary body 22 (A) by contacting the external force receiving part 22c of the 1st rotary body 22 (A). The greater the amount of movement of the first external force applying portion 72 (A) after the first external force applying portion 72 (A) contacts the external force receiving portion 22 c of the first rotating body 22 (A), the greater the amount of movement of the first rotating body 22. The amount of rotation (A) increases. As a result, the first rotating body 22 (A) moves from the initial position as shown in FIG. 17 (a) to the seal position as shown in FIG. 17 (b).

  The second external force imparting portion 72 (B) moves up and down in the same direction as the second operation portion 64, so that the second external force receiving portion 72 (B) receives an external force with respect to the second outer housing portion 38 (B). It contacts and separates from the part 22c (see also FIG. 12). The external force receiving portion 22c of the second rotating body 22 (B) is provided so as to extend toward the corner portion 34 side of the frame body 20 rather than the hollow portion 22b of the second rotating body 22 (B). The 2nd external force provision part 72 (B) provides the external force for rotating to the 2nd rotary body 22 (B) by contacting the external force receiving part 22c of the 2nd rotary body 22 (B). The second rotating body 22 increases as the moving force of the second external force applying section 72 (B) after the second external force applying section 72 (B) comes into contact with the external force receiving section 22 c of the second rotating body 22 (B) is increased. The amount of rotation (B) increases. As a result, the second rotating body 22 (B) moves from the initial position as shown in FIG. 17 (a) to the seal position as shown in FIG. 17 (b).

  As described above, the external force applying mechanism 70 applies external force to the first rotating body 22 (A) and the second rotating body 22 (B) in conjunction with the locking operation by the second locking mechanism 62. The external force applying mechanism 70 simultaneously applies an external force for rotating both the first rotating body 22 (A) and the second rotating body 22 (B).

The effect of the above folding door apparatus 10 is demonstrated.
The folding door device 10 includes an external force applying mechanism 70 capable of applying an external force to rotate the first rotating body 22 (A) by operating independently of the first locking mechanism 60 of the folding door 18. Therefore, even when the folding operation of the folding door 18 is locked by the first locking mechanism 60 of the folding door 18, the first rotary body 22 (A) and the second rotary body 22 (B) are in the initial position without being moved. Can be left. In this state, while the folding operation of the folding door 18 is locked, a shielding target such as a draft can be positively taken into the indoor space from between the frame body 20 and the folding door 18. Moreover, the 1st rotary body 22 (A) and the 2nd rotary body 22 (B) can be moved to a seal position by operating the external force provision mechanism 70, locking the folding operation | movement of the folding door 18. As shown in FIG. At this time, it is possible to prevent the shielding target from entering the indoor space from between the frame body 20 and the folding door 18. Therefore, even when the folding door 18 is locked by the first lock mechanism 60, the way of passing the shielding object can be adjusted according to the user's mood and preference, and the way of passing can be given freedom.

  Further, when the external force applying mechanism 70 operates in conjunction with the first lock mechanism 60 of the folding door 18, the rotary body is also in the sealing position by locking the folding door 18 by the first locking mechanism 60 of any of the folding doors 18. Will move to. At this time, when another folding door 18 adjacent to the one folding door 18 in the locked state is to be slid, there is a possibility of interfering with the rotating body at the seal position. In this regard, according to the present embodiment, since each rotating body 22 does not move to the sealing position even when one folding door 18 is locked, interference between the rotating body 22 and the other folding door 18 can be suppressed, and the other folding door 18 can be prevented. It becomes easy to perform the position adjustment work.

  The external force applying mechanism 70 can simultaneously apply an external force for rotating both the first rotating body 22 (A) and the second rotating body 22 (B). Therefore, the number of mechanisms can be reduced as compared with the case where the dedicated external force applying mechanism is used for each of the first rotating body 22 (A) and the second rotating body 22 (B), and the product cost can be reduced.

  The external force applying mechanism 70 applies an external force to the first rotating body 22 (A) and the second rotating body 22 (B) in conjunction with the locking operation by the second locking mechanism 62 of the corner vertical frame 40. Therefore, the first rotating body 22 (A) and the second rotating body 22 (B) can be rotated by one operation for the locking operation by the second locking mechanism 62, and the first rotating body 22 (A) and Time and effort for rotating the second rotating body 22 (B) can be reduced.

In addition, the folding door apparatus 10 of this embodiment has the characteristics also in the following points.
As shown in FIG. 16A, the height position of the tip of the second lock portion 68 of the second lock mechanism 62 is P1, and the external force applying portions 72 (A) and 72 (B) of the external force applying mechanism 70 are set. The height position of the tip is P2. Here, the height position refers to a position in the vertical direction with reference to a state in which the corner vertical frame 40 is disposed in the corner portion 34 of the frame body 20. At this time, each of the external force applying portions 72 (A) and 72 (B) is opposite to the insertion direction of the second lock portion 68 with respect to the lock hole 30 a with respect to the height position P 1 of the tip of the second lock portion 68. The external force applying portions 72 (A) and 72 (B) are provided so that there is a height position P2 at the tip of each of the external force applying portions 72 (A) and 72 (B).

  As a result, when the movable portion 66 of the external force applying mechanism 70 is moved in the aforementioned insertion direction (downward), the external force applying portion 72 is inserted into each outer housing portion 38 as shown in FIG. Before, the 2nd lock part 68 can be inserted in the lock hole 30a. It can be said that the second lock portion 68 can be inserted into the lock hole 30a before the external force applying portion 72 contacts the external force receiving portion 22c of the rotating body 22. At this time, the second lock mechanism 62 locks the corner vertical frame 40. Further, the external force applying mechanism 70 takes the first state in which each rotating body 22 is held at the initial position without rotating.

  When the movable portion 66 of the external force applying mechanism 70 is further moved downward from the first state, the external force applying portion 72 is placed in the outer housing portion 38 of the frame 20 as shown in FIG. (A) and (B) are inserted, and the external force applying portions 72 (A) and 72 (B) come into contact with the external force receiving portions 22 c of the respective rotating bodies 22. Thereby, each rotary body 22 is rotated until each rotary body 22 is moved to the sealing position where it hits the lower edge 18f, 18g of each folding door 18. At this time, the external force applying mechanism 70 takes the second state in which the first rotating body 22 (A) and the second rotating body 22 (B) are held at the seal position.

  As described above, when the corner vertical frame 40 is locked by the second lock mechanism 62, the external force applying mechanism 70 holds the first rotating body 22 in the initial position and holds the rotating body 22 in the seal position. The second state can be taken. When in the first state, each folding door 18 is abutted against the corner vertical frame 40 whose position relative to the other frame of the frame body 20 is locked, thereby making it easy to align each folding door 18. The second state in which each rotating body 22 is held at the sealing position is switched after the alignment operation of each folding door 18 is performed. If the positioning operation of each folding door 18 is performed in a state where each rotating body 22 is at the sealing position, each rotating body 22 interferes with each folding door 18 and it is difficult to perform the positioning operation. In this respect, according to the present embodiment, since the interference with each rotating body 22 can be prevented during the alignment operation of each folding door 18, the alignment operation of each folding door 18 is further facilitated.

  As shown in FIG. 2, the 1st rotary body 22 (A) is continuously provided in the range which straddles the some 1st folding door 18 (A) in the width direction. The 1st rotary body 22 (A) of this embodiment is in the range which straddles two 1st folding doors 18 (A) including the 1st folding door 18 (A) by the side of the corner part 34 of the frame 20 in the width direction. Provided. The first seal portion 22d of the first rotating body 22 (A) is also provided continuously in a range that spans the plurality of first folding doors 18 (A) in the width direction. The first rotating body 22 (A) can abut the first seal portion 22d against the lower end edge portion 18f of each of the plurality of first folding doors 18 (A). Thereby, compared with the case where the 1st seal | sticker part 22d of one rotary body is contact | abutted for each of several 1st folding door 18 (A), the slight clearance gap between separate rotary bodies does not arise, and with respect to indoor space It is possible to effectively suppress the entry of a shielding object such as a draft.

  In addition, although not shown in figure, the 2nd rotary body 22 (B) is also provided continuously in the range over the some 2nd folding door 18 (B) in the width direction. The second seal portion 22f of the second rotating body 22 (B) is also continuously provided in a range that spans the plurality of second folding doors 18 (B) in the width direction.

  As mentioned above, although this invention was demonstrated based on embodiment, embodiment only shows the principle and application of this invention. In the embodiment, many modifications and arrangements can be made without departing from the spirit of the present invention defined in the claims.

  The frame 20 is provided with one first rail portion 32 (A) and two second rail portions 32 (B), and an example in which these are arranged at positions corresponding to three sides of the rectangle has been described. The number and arrangement of the first rail portions 32 (A) and the second rail portions 32 (B) are not limited to this. For example, one first rail portion 32 (A) and one second rail portion 32 (B) may be provided, and these may be arranged at positions corresponding to two sides of the rectangle.

  Although the example in which the first rail portion 32 (A) and the second rail portion 32 (B) are formed in separate frames has been described, they may be formed in a single frame.

  The corner vertical frame 40 has been described as being slidable along the continuous slide path of the first rail portion 32 (A) and the second rail portion 32 (B). It may be fixed to the frame.

  Each of the first rotating body 22 (A), the second rotating body 22 (B), the first folding door 18 (A), and the second folding door 18 (B) on the lower edge 18f, 18g on the lower side in the vertical direction. An example in which the seal portions 22d and 22f can be abutted has been described. In addition, the seal portions 22f and 22g may be able to abut on the upper edge of the first folding door 18 (A) and the second folding door 18 (B) on the upper side in the vertical direction. That is, the first seal portion 22d of the first rotating body 22 (A) can be brought into contact with the first end edge portion on one side in the vertical direction of the first folding door 18 (A), and the second rotating body 22 ( Even if the second seal portion 22f of B) can be abutted against the second edge of the second folding door 18 (B) on the same side in the vertical direction as the first edge of the first folding door 18 (A). Good.

  The 1st cover body 24 was comprised with the 1st rotary body 22 (A) and another member, and demonstrated the example attached to the edge part of the 1st rotary body 22 (A). In addition, the 1st cover body 24 may be comprised by the same member as the 1st rotary body 22 (A). Anyway, the 1st cover body 24 should just be provided in the edge part of 1st rotary body 22 (A).

  The 2nd cover body 26 was comprised with the 2nd rotary body 22 (B) and another member, and demonstrated the example attached to the edge part of the 2nd rotary body 22 (B). In addition, the second cover body 26 may be configured by the same member as the second rotating body 22 (B). Anyway, the 2nd cover body 26 should just be provided in the edge part of the 2nd rotary body 22 (B).

  Although an example in which the external force applying mechanism 70 operates independently of the first lock mechanism 60 has been described, the present invention is not limited to this. For example, the external force applying mechanism 70 may operate in conjunction with the first lock mechanism 60. In this case, the external force imparting mechanism 70 may be provided not on the corner vertical frame 40 but on the first folding door 18 (A) or the second folding door 18 (B).

  Although the external force provision mechanism 70 demonstrated the example which can provide the external force for rotating to both the 1st rotary body 22 (A) and the 2nd rotary body 22 (B) simultaneously, it is not restricted to this. For example, an external force may be applied to only one of the first rotating body 22 (A) and the second rotating body 22 (B), or an external force may be selectively applied to both.

  Although the example in which the external force applying mechanism 70 operates in conjunction with the locking operation of the second lock mechanism 62 has been described, the present invention is not limited to this. For example, the external force applying mechanism 70 and the second lock mechanism 62 may operate independently.

  The example in which the external force application units 72 (A) and 72 (B) of the external force application mechanism 70 are moved by manual operation on the second operation unit 64 has been described. In addition to this, a drive source such as a motor may be operated by operating the switch, and may be moved by transmitting power from the drive source.

  Generalizing the invention embodied by the above embodiments and modifications leads to the following technical idea. Hereinafter, description will be made by using aspects described in the problems to be solved by the invention.

In the first aspect, the folding door device according to the second aspect is rotated by receiving an external force so that the second edge of the second folding door on the same side in the vertical direction as the first edge is the second edge of the second folding door. A second rotating body capable of abutting two seal portions, and a second cover body provided at an end of the second rotating body on the corner portion side, wherein the second cover body includes the second rotating body. When the second seal portion of the rotating body is in a seal position where it abuts against the second end edge portion, the gap may be provided so as to cover the gap from the expected direction of the second folding door.
According to this aspect, by covering the gap between the second folding door and the frame body with the second cover body, it is possible to suppress the entry of the shielding target into the indoor space from a location near the corner portion of the frame body.

The folding door device according to a third aspect is the second aspect, wherein the second cover body includes the first cover when the first rotating body is in a sealing position and the second rotating body is in a sealing position. You may provide so that a part may exist in the position which overlaps with the expected direction of the said 2nd folding door with respect to a cover body.
According to this aspect, when the first rotating body and the second rotating body are in the sealing position, an exposed gap is generated between the first cover body and the second cover body as seen from the expected direction of the second folding door. It becomes difficult.

According to a fourth aspect of the folding door device of the fourth aspect, in the third aspect, the second cover body has the first rotating body when the first rotating body is in the sealing position and the second rotating body is in the sealing position. You may provide so that a part may exist in the position which overlaps with the rotation axis direction of a said 2nd rotary body with respect to a cover body.
According to this aspect, when the first rotating body and the second rotating body are in the sealing position, the gap between the second cover body and the second folding door can be narrowed.

In the folding door device of the fifth aspect, in any one of the second to fourth aspects, the second cover body may be formed so as to avoid a rotation locus of the first cover body.
According to this aspect, when the first cover body rotates integrally with the first rotating body, contact between the second cover body and the first cover body can be prevented.

  In the folding door device according to a sixth aspect, in any one of the second to fifth aspects, the frame body has a corner vertical frame disposed at the corner portion, and the first cover body and the second cover. When the first rotating body is at the sealing position and the second rotating body is at the sealing position, the range of the second folding door is expected to span the second end edge and the corner vertical frame. It may be provided so as to cover from the direction.

The folding door device according to a seventh aspect is any one of the first to sixth aspects, wherein the frame has a corner vertical frame disposed at the corner portion, and the first rotating body is at the sealing position. When it exists in, it may be provided so that the range which straddles the said 1st edge part and the said corner vertical frame may be covered from the expectation direction of a said 1st folding door.
According to this aspect, the gap between the second folding door and the frame body is covered with the first cover body at the location near the corner portion of the frame body, and the gap between the first folding door and the frame body is also the first. It can be covered by a rotating body.

Moreover, when the invention embodied by the above embodiment and modification is generalized, it can be said that the invention described in the following items is included.
The folding door device of the first item is a frame having a first rail portion and a first folding door slidably provided with a folding operation with respect to the first rail portion, wherein the folding operation can be locked. A first folding door having one lock mechanism and a first rotating body capable of abutting a first seal portion on a first end edge on one side in the vertical direction of the first folding door by rotating under an external force And an external force applying mechanism capable of applying an external force for rotating the first rotating body by operating independently of the first lock mechanism.

  The problems relating to the invention described in the first item are as follows.

  The aforementioned folding door device of Patent Document 1 includes a lock mechanism for locking the folding operation of the folding door. In this folding door device, the rotary seal body rotates in conjunction with the locking operation of the lock mechanism, thereby sealing between the folding door and the rotary seal body.

  Depending on the user, even when the folding door is locked, there is a demand for capturing a shielding target such as a draft from the outdoor space to the indoor space to some extent. In the conventional folding door device, when the folding door is in the locked state, the gap between the folding door and the rotary seal body is always sealed. For this reason, there is a problem in that there is no degree of freedom in the way of passing the shielding target when the folding door is in the locked state, and the above-mentioned requirement is not met.

  The invention described in the first item is to provide a folding door device capable of giving a degree of freedom in the way of passing a shielding object even when the folding door is in a locked state.

  This specification includes inventions described in the following items.

According to a second item of the folding door device, in the first item, the frame has a second rail portion in which a corner portion is formed between the first rail portion, and the folding door device includes the second rail. A second folding door that is slidable with a folding operation with respect to the portion, and by receiving an external force and rotating, on the edge of the second folding door on the same side in the vertical direction as the first edge A second rotating body capable of abutting against the second seal portion, wherein the external force applying mechanism applies an external force for rotating both the first rotating body and the second rotating body simultaneously. Good.
According to this item, the number of mechanisms can be reduced as compared with the case where a dedicated external force applying mechanism is used for each of the first rotating body and the second rotating body, thereby reducing the product cost.

In the first or second folding door device according to the third item, the frame has a continuous slide path between the first rail portion and a corner portion between the first rail portion and the frame. A second rail portion that is formed; and a corner vertical frame that is disposed in the corner portion and is slidable along the slide path. The corner vertical frame can lock a position relative to the corner portion. A second locking mechanism, and the external force applying mechanism may apply the external force in conjunction with a locking operation by the second locking mechanism.
According to this item, the first rotating body can also be rotated by one operation for the locking operation by the second locking mechanism, and the labor of the operation for rotating the first rotating body can be suppressed.

According to a fourth item of the folding door device, in the third item, when the external force applying mechanism locks the corner vertical frame by the second lock mechanism, the first rotary body is held in an initial position without rotating. You may take 1 state and the 2nd state hold | maintained in the seal position which abuts against the said 1st edge part by rotating the said 1st rotary body.
According to this item, when in the first state, the folding door is brought into contact with the corner vertical frame whose position with respect to the other frame of the frame is locked, so that the folding door can be easily aligned. Further, since the interference with the rotating body can be prevented during the folding door positioning operation, the folding door positioning operation is further facilitated.

In the fifth item folding door device, in any one of the first item to the fourth item, a plurality of the first folding doors are slidably provided on the first rail portion, and the first rotating body includes the plurality of the first rotating bodies. The first folding door may be provided continuously in a range straddling the width direction.
According to this item, compared with the case where the first seal portion of one rotating body is abutted against each of the plurality of first folding doors, a slight gap between the separate rotating bodies is not generated, and the object to be shielded against the indoor space Can be effectively suppressed.

DESCRIPTION OF SYMBOLS 10 ... Folding door apparatus, 18 (A) ... 1st folding door, 18 (B) ... 2nd folding door, 20 ... Frame, 22 (A) ... 1st rotation body, 22 (B) ... 2nd rotation body, 22d ... 1st seal part, 22f ... 2nd seal part, 24 ... 1st cover body, 26 ... 2nd cover body, 32 ... 1st rail part (A), 32 ... 2nd rail part (B), 34 ... Corner part , 40 ... corner vertical frame, 48, 50, 52 ... gap.

Claims (7)

A frame having a first rail portion and a second rail portion, and a corner portion formed between the first rail portion and the second rail portion;
A first folding door slidably provided with a folding operation with respect to the first rail portion;
A second folding door slidably provided with a folding operation with respect to the second rail portion;
A first rotating body capable of abutting a first seal portion on a first end edge portion on one side in the vertical direction of the first folding door by rotating by receiving an external force;
A first cover body provided at an end of the first rotating body on the corner part side,
The first cover body is formed between the second folding door and the frame body when the first seal portion of the first rotating body is in a sealing position where it abuts against the first end edge portion. The folding door device is provided so as to cover a gap from an expected direction of the second folding door. A second rotating body capable of abutting a second seal portion against a second end edge of the second folding door on the same side in the vertical direction as the first end edge by rotating by receiving an external force;
A second cover body provided at an end of the second rotating body on the corner portion side,
The second cover body is provided so as to cover the gap from an expected direction of the second folding door when the second seal portion of the second rotating body is at a seal position where it abuts against the second end edge portion. The folding door device according to claim 1.   The second cover body is positioned so as to overlap with the first cover body in the expected direction of the second folding door when the first rotating body is in the sealing position and the second rotating body is in the sealing position. The folding door device according to claim 2, wherein the folding door device is provided so as to have a part.   When the first rotating body is in the sealing position and the second rotating body is in the sealing position, the second cover body has a rotational axis direction of the second rotating body with respect to the first cover body. The folding door apparatus of Claim 3 provided so that a part may exist in the overlapping position.   The folding door device according to any one of claims 2 to 4, wherein the second cover body is formed so as to avoid a rotation trajectory of the first cover body. The frame body has a corner vertical frame arranged in the corner portion,
The first cover body and the second cover body include the second end edge portion and the corner vertical frame when the first rotating body is in a sealing position and the second rotating body is in a sealing position. The folding door apparatus in any one of Claim 2 to 5 provided so that the range which straddles may be covered from the expectation direction of the said 2nd folding door. The frame body has a corner vertical frame arranged in the corner portion,
The said 1st rotary body is any one of Claim 1 to 6 provided so that the range which straddles the said 1st edge part and the said corner vertical frame may be covered from the expected direction of a said 1st folding door, when it exists in the said sealing position. The folding door device according to crab.

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