Mounting structure for rotating seal body of folding door

Abstract

To provide a mounting structure which prevents a rotary seal body from being removed easily and stolen, in a folding door mounted on a frame body including the rotary seal body.SOLUTION: A shaft 2 where a rotary seal body 1 is pivotally supported in a rotatable manner forms surfaces 8a, 8b forming a pair with each other on both sides. At a bearing part 3, an opening 9 is provided on a lower side as an approximately C-shaped cross section. By the opening 9 passing the shaft 2, the rotary seal body 1 can be detached, but it does not come off from the shaft 2 by changing the direction.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a folding door device in which the upper surface of the lower rail that constitutes the frame body on which the folding door is attached is formed as a flat surface, and relates to an installation structure of a rotating seal body that seals the gap between the lower rail and the folding door. [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 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" in JP 2006-37424 A (Patent No. 4,264,652) 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 3 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 opening is open. However, if the folding door (F) is extended to close the opening and the rod (D) is lowered, 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] The rotating seal body (A) is fitted onto the shaft (C) attached to the lower rail. Figure 4 is a cross-sectional view showing the rotating seal body (A) attached to the shaft (C), and the bearing part (R) of the rotating seal body (A) forms a semicircular arc (C-shaped cross section), and the bearing part (R) is fitted onto the shaft (C) attached to the upper end of the standing support (J) and supported by it.

[0010] In the figure, the rotating seal body (a) is in a fallen state, but if the rod (d) descends, the bearing part (i) can rotate smoothly and stand up. By the way, when the folding door (F) is folded up and the entrance is open, the rotating seal body (I) is tilted over as shown in Figure 4, and if the rotating seal body (I) is lifted, the bearing part (Ri) will easily come off the shaft (C).

[0011] For this reason, the rotating seal body (A) may be stolen, and if children remove the rotating seal body (A) from the lower rail (B) and use it as a toy, it may be damaged, which may lead to an accident. Of course, if the cross section of the C-shaped bearing part (i) is modified and the opening on the bottom is made smaller, it will not come off the shaft (c). However, if the opening on the bottom is made smaller, the bearing part (i) cannot be fitted onto the shaft (c) from above. [Patent Document 1] "Folding door device" according to JP 2006-37424 A DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0012] Thus, the rotating seal member provided in the folding door device has the problems described above. The problem that this invention aims to solve is this problem, and to provide an installation structure for a rotating seal body that prevents the general public from easily removing the rotating seal body that is fitted onto a shaft and rotatably supported. [Means for solving the problem]

[0013] The folding door device of the present invention is configured such that a rotary seal body is attached to a shaft provided on a lower rail, and the rotary seal body can be sealed by rotating and standing up. Therefore, the basic structure is the same as that of the "folding door device" according to Japanese Patent Application Laid-Open No. 2006-37424. By the way, the shaft does not have a circular cross-section, but has flat surfaces formed on both sides, and the bearing portion has a C-shaped cross-section and an opening on the lower side. Therefore, the flat surfaces formed on both sides of the shaft have a predetermined distance A, and both ends of the C-shaped cross-section have openings with a predetermined interval B.

[0014] And, A < B, and the rotary seal body is fitted to the shaft and removed from the shaft only at a predetermined angle. Therefore, when the rotary seal body rotates, the orientation of the opening of the bearing portion changes, and for this reason, there is a displacement from the positions of the two flat surfaces formed on both sides of the shaft. The flat surfaces are not necessarily limited to surfaces that stand up vertically, and any surfaces that are paired with each other may be used. Also, it is not limited to flat surfaces.

Effect of the Invention

[0015] The present invention has a shaft on the lower rail, and a rotary seal body is pivotally supported on the shaft and stands up by rotating, and the seal attached to the edge can come into contact with the surface of the folding door. The above shaft has flat surfaces parallel to each other on both sides, and the bearing portion has a C-shaped cross-section and an opening provided on the lower side. Therefore, the rotary seal body is pivotally supported by the shaft being inserted into the bearing portion having a C-shaped cross-section from the opening, and is removed from the shaft if lifted in the same orientation.

[0016] However, if the rotary seal body rotates slightly and its orientation changes, the opening does not pass through the shaft, and the rotary seal body does not come off the lower rail even if it is lifted. A person who is not used to it cannot correctly lift the rotary seal body in a predetermined orientation, and for this reason, the rotary seal body is not subject to theft.

Brief Description of the Drawings

[0017] [Figure 1]1 is an embodiment showing a mounting structure of a rotating seal body according to the present invention. [Diagram 2] (a) is when the opening formed in the bearing part of the rotating seal passes through the shaft and becomes dislodged, and (b) is when the rotating seal rotates slightly, preventing the opening from passing through the shaft. [Diagram 3] A conventional folding door device equipped with a rotating seal body. [Figure 4] Mounting structure with a rotating seal body supported by a shaft. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Fig. 1 shows a cross-sectional view of a specific example of the mounting structure of a rotating seal body according to the present invention. In the figure, 1 is a rotating seal body, 2 is a shaft, and 3 is a bearing portion, and the bearing portion 3 is fitted onto the shaft 2, so that the rotating seal body 1 can rotate around the shaft 2 and stand up. The rotary seal body 1 is an extruded aluminum material, with a seal 4 attached to one side edge and a seal 5 attached to the other side edge.

[0019] A pressing piece 6 extends from the bearing portion 3 on the opposite side to the seal 4, and when a lock (not shown) provided on the folding door is lowered, the pressing piece 6 is pressed down and the rotating seal body 1 can rotate counterclockwise and stand up. The rotating seal body 1 in the figure is in a fallen state, and when the rotating seal body 1 stands up, the seal 4 on one side edge abuts against the surface of the folding door, eliminating any gap with the folding door and ensuring airtightness and watertightness.

[0020] The shaft 2 supporting the rotary seal body 1 is attached to the upper end of the support 7, extends longitudinally along the lower rail, and has parallel flat surfaces 8a, 8b on both sides. The bearing portion 3 has a roughly C-shaped cross section and has an opening 9 on the lower side, through which the shaft 2 fits into the bearing portion 3. When the rotary seal body 1 is in the fallen orientation as shown in the figure, the shaft 2 can pass through the opening 9 and the bearing portion 3 can be fitted onto the shaft 2. Similarly, the rotary seal body 1 in the same orientation can be removed from the shaft 2.

[0021] 2(a) shows the case where the rotary seal unit 1 is removed from the shaft 2. The opening 9 provided in the bearing portion 3 passes through the shaft 2, and the rotary seal unit 1 is removed from the shaft 2. The opening 9 can pass through the flat surfaces 8a, 8b provided on both sides of the shaft 2. In other words, the width dimension of the opening 9 is larger than the distance between the flat surfaces 8a, 8b of the shaft 2. FIG. 1(b) shows a case where the rotary seal body 1 cannot be removed from the shaft 2, and the opening 9 cannot pass through the shaft 2.

[0022] That is, if the rotating seal body 1 rotates slightly counterclockwise to change its orientation, the tip 10 of the C-shaped cross-section bearing portion 3 engages with the shaft 2. The tip 10 moves away from the flat surface 8a and engages with the lower surface 11 of the shaft 2, and the opening 9 cannot pass through the shaft 2. When removing the rotary seal body 1 from the shaft 2, it is necessary to lift it up without changing its orientation. For example, it can be lifted by pinching the pressing piece 6 rather than the seal 4 side.

[0023] To remove the rotating seal body 1 from the lower rail when it is in a fallen position, it is more convenient to pinch and lift it up by the seal 4, but if you pinch the side of the seal 4, the rotating seal body 1 will rotate counterclockwise and change direction, making it impossible to remove it from the shaft 2. In the present invention, the opening 9 formed in the bearing portion 3 having a C-shaped cross section can allow the shaft 2 to pass through only when the rotary seal body 1 is in a specified orientation. [Explanation of symbols]

[0024] 1 Rotating seal body 2-axis 3 Bearing 4. Seal 5. Seal 6 Presser piece 7 pillars 8 flat surface 9 aperture 10 Tip 11 Bottom side

Claims

[Claim 1] In the mounting structure of the rotary seal body of the folding door device, a folding door is mounted on a frame, the upper surface of the lower rail is made flat, and a storage groove is provided continuously in the longitudinal direction, a rotary seal body mounted rotatably is accommodated in the storage groove, and when a rod for locking is lowered, the rotary seal body is supported on a shaft provided on the lower rail and rotates, and rises up to abut against the surface of the folding door to seal. The rotary seal body is made of an aluminum extrusion material and supported on a shaft, a seal is attached to one side edge, and a pressing piece is provided on the opposite side to the seal. extends from the shaft, with opposing surfaces on both sides, and the bearing portion has a roughly C-shaped cross section with an opening on the underside, through which the shaft passes so that the rotating seal body can be attached to and detached from the shaft. When the folding door is folded and the rotating seal body is in a fallen position, if the pressing piece is grasped and lifted, the rotating seal body will pass through the opening in the bearing portion without rotating, but if the seal side is grasped and lifted, the rotating seal body will rotate and cannot be removed from the shaft.

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