Seal structure of rotating seal body of folding door

Abstract

To provide a seal structure that attaches a folding door to a frame including a rotary seal body and improves a seal function and the appearance of the rotary seal body.SOLUTION: When a rod 4 descends, a rotary seal member 1 rises, a seal 2 attached to an edge abuts on a surface of a folding door, and to cover a gap 10 formed between the seals of adjacent rotary seal bodies 1, 1, a covering material 9 that covers the gap 10 so as not be seen is attached to a cap 5 fitted to the tip of the rotary seal body 1.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a folding door device in which the upper surface of the lower rail constituting the frame on which the folding door is mounted is formed as a flat surface, and to a seal structure of a rotary seal body that seals the gap between the lower rail and the folding door. In particular, the seal structure is one in which a covering material is attached to cover the gap formed between the seals attached to adjacent rotary seal bodies. [Background technology]

[0002] Folding doors, which are made up of multiple connected doors, are widely used as devices for opening and closing entrances. A hoist is attached to the upper end of the door joint of the folding door, which does not protrude from the rail during folding, and is suspended from the rail of the upper rail, and a slider protrudes from the lower end and can move along a guide groove provided in the lower rail. When the door is extended and closed, a lock bar protrudes and fits into the guide groove, locking the folding door so that it cannot be opened.

[0003] A seal body with sealing material installed is provided on the upper and lower rails of the frame body to which the folding door is attached, and the inner surface of the closed folding door can abut against the seal body, ensuring airtightness and watertightness via the seal material. For this reason, the top surface of the bottom rail is not flat, and the above seal is provided on the inside (inside the room) so that the folding door can abut against it. This has traditionally been adopted as a necessary form to maintain airtightness and watertightness between the folding door and the bottom rail.

[0004] In recent years, flat floors that are called barrier-free and have no steps on the floor surface and allow wheelchairs to move freely have become popular. For example, if the floor surface of a room and the balcony surface are the same, a wheelchair can move freely onto the balcony. However, if the bottom rail is made flat, there is no seal, which results in problems such as rainwater entering from the outside and loss of airtightness against the outside air.

[0005] Therefore, a rotating seal body is used so that the seal can be attached even on a flat floor surface, and when the folding door is folded, the rotating seal body falls down to form a flat floor surface. However, when the folding door is extended to close the opening and lock it, the rotating seal body rotates and stands up, abutting against the inner surface of the folding door to seal, ensuring airtightness and watertightness.

[0006] The "folding door device" disclosed in JP 2006-37424 A is a folding door device that can seal the gap between the folding door attached to a frame and the lower rail that forms a flat upper surface when the folding door is extended to close the opening. Therefore, the upper surface of the lower rail is made flat and a groove space is provided continuously in the longitudinal direction, and a rotatably attached rotating seal body is accommodated in the groove space.When the lock bar attached to the folding door is lowered, the rotating seal body rotates and stands up in conjunction with the descent of the lock bar, so that it can abut against the bottom frame of the folding door.

[0007] Figure 4 shows the case where the rotating seal body (A) is attached to the lower rail (B). The lower rail (B) is provided with a shaft (C), and the rotating seal body (A) is supported on the shaft (C). In this figure, the rod (D) of the locking device descends, causing the rotating seal body (A) to rotate and stand up, and the seal (E) attached to the edge abuts against the inner surface of the folding door (F).

[0008] The rotating seal body (A) has a pressing piece (G) and is horizontal so as to close the fitting groove (H) when the folding door (F) is folded and the frontage is open. However, when the rod (D) descends, the pressing piece (G) is pressed down as shown in the figure and the rotating seal body (A) stands up. Therefore, the airtightness and watertightness of the folding door (F) is ensured via the rotating seal body (A).

[0009] Incidentally, a long lower rail is provided in the wide frontage, and multiple rotating seal bodies (A), (A)... are arranged in a straight line on this lower rail. These rotating seal bodies (A), (A)... are supported by a shaft (C) provided on the lower rail, and are structured so that each can stand up independently. Rotation occurs when a rod (D) provided on the folding door descends and fits into an insertion groove (H), pressing a retaining piece (G), causing the rotating seal body (A) to stand up, which is the same as a single rotating seal body (A) rotating and standing up.

[0010] By the way, a small gap is left between adjacent rotating seal bodies (A), (A) so that each rotating seal body (A), (A) can rotate independently. Also, a seal (E) (airtight material) is attached to the edge of the rotating seal body (A), but there is also a gap between these adjacent seals (E), (E). As a result, rainwater seeps in through the gaps, causing the watertightness and airtightness to be lost and the appearance to be marred.

[0011] Recently, there have been heavy rains, and even if the rod (D) descends and the rotating seal body (A) stands up during heavy rain such as a squall, rainwater passes through the gaps between the rotating seal bodies (A), (A)... and between the seals (E), (E)... and seeps into the inside of the folding door (F). The aluminum rotating seal bodies (i), (i)..., which are supported by a shaft (iii) and can rotate, can close the gaps that occur between them by overlapping their tips, but the seals (e), (e) extending from the edge of the rotating seal body (i) cannot be overlapped.

[0012] Figure 5 shows adjacent rotating seal bodies (A), (A), with a gap (R) formed between them. Similarly, a gap (J) is also formed between seals (E), (E). In particular, the rubber seals (E), (E) are cut to an appropriate length and attached to the rotating seal bodies (A), (A), but because of this, the cut ends of the seals (E), (E) are not uniform, and the size and shape of the gap (J) formed between them vary, damaging the appearance. [Patent Document 1] "Folding door device" according to JP 2006-37424 A DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0013] As described above, the rotating seal body and the seal (airtight material) provided in the folding door device have the problems described above. The problem that the present invention aims to solve is this problem, and to provide a seal structure of a rotating seal body that prevents rainwater from entering through gaps between adjacent rotating seal bodies even during heavy rain such as a squall, and prevents rainwater from entering through gaps formed between adjacent seals while preventing damage to the appearance. [Means for solving the problem]

[0014] The folding door device of the present invention is configured to have multiple rotating seal bodies on the lower rail, and the rotating seal bodies rotate and stand up to seal. Therefore, the basic structure is the same as the "folding door device" in JP 2006-37424 A. The present invention improves the sealing function of adjacent rotating seal bodies of this folding door device, improves the sealing function of the seal (airtight material) attached to the rotating seal body, and seals the gaps formed between adjacent seals (airtight materials) so that they do not become visible.

[0015] A plastic cap is fitted to the tip of one of the aluminum rotary seal bodies, and a plastic cap is also fitted to the tip of the other adjacent rotary seal body. In order to prevent a gap from occurring between the two caps, the two ends are provided with a recess and a protrusion so that they fit together. In addition, in order to close the gap between the seals (airtight materials) attached to the adjacent rotary seal bodies, a coating material is extended from the cap and positioned above the gap formed between the seals. Effect of the Invention

[0016] In the folding door device of the present invention, multiple rotary seal bodies are arranged in a straight line on the lower rail, and each rotary seal body can rotate and stand independently. A seal (airtight material) is attached to the rotary seal body, and the seal can abut against the surface of the folding door. Incidentally, resin caps are fitted onto the tips of adjacent rotary seal bodies, and the tips of the caps are provided with a recess and a protrusion that fit together, so that no gaps are formed between them.

[0017] A gap is also formed at the tip of the seal (airtight material) attached to each rotating seal body, but a covering material is provided on the resin cap, and this covering material covers the gap. Therefore, there are no gaps between adjacent rotating seal bodies, and no gaps between the seals (airtight materials). As a result, rainwater does not seep into the inside of the folding door through the gaps, ensuring stable watertightness. In addition, the lack of gaps improves the design of the rotating seal body and the seal. [Brief description of the drawings]

[0018] [Figure 1] 1 is an embodiment in which a seal is attached to the edge of a rotating seal body according to the present invention, and a coating material is attached to cover the gap between adjacent seals. [Diagram 2] FIG. 13 is a front view of an embodiment in which a covering material is installed to cover the gap between adjacent seals. [Diagram 3] When the caps attached to the ends of the rotating seal body are fitted together. [Figure 4] A rotating seal body attached to a folding door device. [Diagram 5] The rotating seal elements with seals attached to their edges are arranged in a straight line, and there are gaps between the rotating seal elements and the seals. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Fig. 1 shows a cross-sectional view of a specific example of the seal structure of a rotating seal body removed from a lower rail according to the present invention. In the figure, 1 denotes the rotating seal body and a cap 5 attached to its tip, and 2 denotes the seal (airtight material) that contacts the surface of the folding door. The rotating seal body 1 is an extruded aluminum material, with a bearing portion 3 in the middle and a pressing piece 4 at the tip. Therefore, the bearing portion 3 is fitted onto an axis provided on the lower rail and supported so as to be freely rotatable, the pressing piece 4 is attached to the folding door and is held down by a descending rod so as to hang down, and the rotating seal material 1 is configured so as to be able to rotate and stand up.

[0020] A resin cap is attached to the tip of the rotary seal body 1, and adjacent rotary seal bodies 1a, 1b are connected via resin caps 5, 6. 2 is a front view of the rotating seal bodies 1a and 1b connected in a straight line, with the caps 5 and 6 fitted to the ends to eliminate any gaps between them. That is, one cap 5 is provided with a recess 7, the other cap 6 is formed with a protrusion 8, and the recess 7 is fitted into the protrusion 8, so no gaps are formed between them.

[0021] One of the caps, 5, is provided with a covering material 9, which covers the seal 2. The covering material 9 is made of soft resin, but can be molded simultaneously with the hard resin cap 5. Of course, it is also possible to fix the covering material 9 to the edge of the cap 5 via an adhesive, without molding them simultaneously. In FIG. 2, the area indicated by the dotted line is a gap 10 formed between the two adjacent seals 2, 2, and the gap 10 is covered by the covering material 9 so as to be invisible. [Explanation of symbols]

[0022] 1 Rotating seal body 2. Seal 3 Bearing 4 Presser piece 5 Cap 6 Cap 7 Recess 8 Convex 9 Clothing materials 10. Gap

Claims

1. a sealing structure for a rotating seal body for a folding door in which a folding door is attached to a frame body, the upper surface of the lower rail is flat and a storage groove is provided continuously in the longitudinal direction, a plurality of rotating seal bodies rotatably attached are linearly stored in the storage groove, and a locking rod is lowered so that the rotating seal bodies rotate and stand up to abut against the surface of the folding door to seal. The sealing structure for a rotating seal body for a folding door is characterized in that a resin cap is attached to the tip of each of the adjacent rotating seal bodies, a recess and a protrusion are provided at the tip of the resin cap and fitted together to eliminate the gap between the rotating seal bodies and the gap between the resin caps, a seal that contacts the surface of the folding door is extended from the edge of the rotating seal body, and further, in order to cover the gap formed between adjacent seals, a soft resin or rubber covering material is extended from the edge of the resin cap and positioned above the gap.

2. 2. The seal structure of a rotary seal body for a folding door according to claim 1, wherein said covering material is integrally formed with a resin cap.

3. 2. The seal structure of a rotary seal body for a folding door according to claim 1, wherein said covering material is fixed to a resin cap by means of an adhesive.

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