JP6760563B2 - Folding door device - Google Patents

Description

The present invention relates to a folding door apparatus is constructed by connecting a plurality of panels, to a folding door apparatus having a rotary seal member capable of sealing the gap formed at the lower end.

Folding doors, which are constructed by connecting a plurality of panels (doors), are often used as a device for opening and closing the frontage. By the way, in the panel joint of the folding door, a suspension wheel is attached to the upper end of the joint that does not protrude from the rail during the folding operation and is suspended on the upper rail formed on the upper rail, and the slider protrudes from the lower end. It can be moved along the guide groove provided on the lower rail of the lower rail. Then, when it is extended and closed, the lock rod protrudes and fits into the guide groove, and the folding door is folded and locked so that the frontage does not open.

Sealing bodies with sealing materials are provided on the upper and lower rails of the frame to which the folding doors are mounted, and the inner surface of the extended folding door can come into contact with the sealing materials, and the airtightness and watertightness are achieved through the sealing materials. It has a structure that ensures sex.
Therefore, the upper surface of the lower rail of the frame is not flat, and the sealing material is erected on the inside (indoor side) so that the sealing material can be attached, and the inner surface of the extended folding door with the frontage closed abuts. It has a structure that can be used. This has been conventionally adopted as a form necessary for maintaining the airtightness and watertightness between the folding door and the lower rail.

However, in recent years, a flat floor surface, which is called barrier-free and allows wheelchairs to move freely without providing a step on the floor surface, has become widespread. This idea is no exception to the folding door device used as a partition from the outside as well as the room. For example, by making the floor surface and the balcony surface of the room the same, the wheelchair can move freely to the balcony. You can.

In this case, if a lower rail with a step is provided at the boundary between the room and the balcony, the movement of the wheelchair will be hindered. However, if a flat lower rail is used, the sealing body is lost, and as a result, the sealing material cannot be attached, rainwater invades from the outside, and the airtightness with the outside air is impaired.
By the way, various known seal structures for folding door devices have been known.

For example, the "lower end sealing device for a horizontal pulling shutter" according to Japanese Patent Application Laid-Open No. 2009-264605 is a horizontal pulling shutter in which a large number of unconnected vertical stiles of shutter units are hinged and supported by a pair of panels having the same width. Airtightness can be ensured between the panel and the lower guide rail.
That is, by closing the shutter unit, the elevating frame of each panel is lowered by the elevating mechanism, and the sealing beat at the lower end thereof is brought into contact with the lower guide rail to ensure airtightness. The elevating mechanism arranges actuating protrusions urged outward from the edge caps at both ends of the housing, and the leaf springs between them are loosened by pressing the actuating protrusions, which are held by engagement supports arranged at two locations in the longitudinal direction. The lift frame is lowered, and the lift frame is raised by releasing the pressure. When the shutter unit is closed, it is pushed by the vertical frames and vertical frames of the adjacent panels to operate, and when the shutter unit is opened, it is restored by the urging force.

The “lower end sealing device for a horizontal pulling shutter and the horizontal pulling shutter provided with the same” according to JP-A-2011-74634 is a unitized lower end sealing device used for a pair of panels having the same width of the horizontal pulling shutter.
That is, the storage bases of the pair of arms are housed in the elevating frame, both ends of the leaf springs are fixed to each standing portion, and the standing portions are fixed to the pair of end slide rods, and these end slides are also fixed. An actuating protrusion is fixed to the side of the panel of the rod, and a coil spring is arranged between the upright portion and the stopper of the leaf spring to form a unit of the lower end sealing device. By attaching it to the lower stile via the fore-edge cap, the leaf spring is operated by the protrusion of the operating protrusion, and the elevating frame support member in the middle raises and lowers the elevating frame in the lower stile. The airtightness between the lower frame and the lower frame is ensured by the downward sealing beat contact, and the sealing beat contact is released at the time of opening and closing to enable smooth opening and closing.

The "lower frame structure of the door frame in the folding door device" according to Japanese Patent Application Laid-Open No. 2006-188908 is mainly configured to ensure drainage of the lower frame.
A guide groove for guiding the folding door is formed on the outdoor side of the lower frame of the door frame, a storage groove is formed on the indoor side of the guide groove via an intermediate groove, and a sealing member is rotated inside the storage groove. It is freely supported, and when the protruding edge of the sealing member is pushed down with a lock rod, the sealing member rotates so as to contact the indoor side surface at the bottom of the folding door and make the floor surface and the folding door continuous. In the folding door device, a hollow portion is formed below the guide groove and the intermediate groove, and the groove bottom of the intermediate groove is made higher than the groove bottom of the guide groove so that the intermediate groove communicates with the outdoor side. A path is formed, and the bottom of the storage groove is made higher than the bottom of the hollow portion to form a second drainage path that communicates from the storage groove to the outdoor side.

"Lower end sealing device for horizontal shutter" according to JP-A-2009-264605 "A device for sealing the lower end of a horizontal pulling shutter and a horizontal pulling shutter provided with the device" according to Japanese Patent Application Laid-Open No. 2011-74634. "Lower frame structure of door frame in folding door device" according to Japanese Patent Application Laid-Open No. 2006-188908

In this way, various types are known in which a seal body attached to the lower end of the folding door device can be operated to close the gap with the lower rail. However, the conventional seal structure is complicated, and therefore lacks durability and increases the manufacturing cost. In addition, the conventional folding door device requires a lower rail on the floor surface.
The problem to be solved by the present invention is these problems, and it can be configured with a very simple structure, and the gap at the lower end of the folding door can be closed regardless of the presence or absence of the lower rail, and the extended folding can be performed. Provided is a folding door device capable of stabilizing a door.

The basic configuration of the folding door is the same as before, and a plurality of panels are connected so that they can be folded via joints. A suspension wheel is attached to the upper end of the main joint that does not project outward from the upper rail when folded, and the suspension wheel can move along the upper rail.
The lower rail can be freely laid on the floor surface, but it is also possible to have a structure in which the lower rail is not attached.

Then, a seal body is attached to the lower end of the panel, and the seal body is made of a long material extending along the panel surface so that the seal body can rotate about an axis provided parallel to the panel surface. It is made up. An elastic force (spring force) is urged on the seal body, and the tip side is constantly lifted by the elastic force, and the tip side of the seal body is pushed down by a rod attached to the panel and lowered by operating the handle to lower the rail or the floor. It is configured so that it can be pressed against the surface.

That is, the tip of the seal body, which is a long material, rotates and presses against the lower rail or the floor surface to close the gap formed at the lower end of the folding door. Here, the specific structure of the seal body is not limited, but in general, it is configured as a long material having a fixed cross section, and rubber or the like that can be compressed and deformed so that the tip can be pressure-welded without a gap. The elastic piece is attached and the base side is pivotally supported.

The folding door device according to the present invention is attached to the lower end of the panel so that the seal body can rotate, and the seal body can rotate and the tip can be pressed against the lower rail or the floor surface without a gap. Therefore, it is possible to close the gap formed at the lower end of the folding door by rotating the seal body.
This seal body is pivotally supported at the lower end of the panel, and by operating the handle to lower the rod, the tip side of the seal body is pushed down in conjunction with the rod.

As described above, the seal structure provided with the rotating seal body is extremely simple, and therefore the production cost is low, the durability is excellent, and the seal structure is hardly damaged.
On the other hand, the seal body of the present invention is attached to the lower end of the panel, and its tip can be pressed against the floor surface by rotating. Therefore, even if the folding door device of the present invention does not have a lower rail, the lower end of the extended folding door does not swing and the frontage can be closed stably. Further, the seal body is a thin long material, so that it can be attached even in a small space at the lower end of the panel.

In the external view of the folding door device, (a) shows the case where the folding door is extended, and (b) shows the case where the folding door is folded. A specific example showing a sealed body. Front view when the tip side of the seal body attached to the lower end of the folding door is raised. Vertical cross-sectional view when the tip side of the seal body attached to the lower end of the folding door is raised. Front view when the tip side of the seal body attached to the lower end of the folding door is pushed down. Vertical cross-sectional view when the tip side of the seal body attached to the lower end of the folding door is pushed down.

FIG. 1 shows an external view of the folding door device according to the present invention. A frame body 3 is fitted in the frontage 2, and the folding door 1 is attached to the frame body 3. In the figure, (a) is a case where the folding door 1 is extended and the frontage 2 is closed, and (b) is a case where the folding door 1 is folded and the frontage 2 is open.
The folding door 1 is connected so that a plurality of panels 4, 4, 4 ... Can be folded via joints, and suspension wheels 6, 6 ... Are attached to the upper ends of the main joints 5, 5 ... The sliders 7, 7 ... Extend downward at the lower ends of the main joints 5, 5 ...

The suspension wheels 6, 6 ... Attached to the upper ends of the main joints 5, 5 ... Move on the upper rail formed on the upper rail 8 constituting the frame body 3, and the sliders 7, 7 ... Can move by loosely fitting in the guide groove formed in the lower rail of the lower rail 9. The auxiliary joints 10, 10 ... Not provided with the suspension wheels 6, 6 ... And the sliders 7, 7 ... May project outward from the upper and lower rails when the folding door is folded. You can.
Here, the form of the folding door 1 shown in FIG. 1 is merely a specific example, and a set of two folding doors may be attached to both sides of the frame body 3.

By the way, in the folding door device of the present invention, a seal body is attached to the lower end of each panel constituting the folding door, and the seal body is pivotally supported so as to rotate, and the tip is a lower rail when the seal body rotates. It functions to press contact with the surface. Therefore, the gap formed between the lower end of the panel and the lower rail can be closed by the rail body.

FIG. 2 is a specific example showing the seal body 11 of the present invention. The seal body 11 is configured as a long material having a constant cross section, and a rubber piece 13 is attached to the main body 12. A shaft portion 14 is provided on one side (base portion) of the main body 12, and the rubber piece 13 is provided on the other side (tip). A locking groove 16 extending in the longitudinal direction is formed on the upper surface 15 of the main body 12. Here, the main body 12 is generally made of a hard resin or an aluminum material, and the rubber piece 13 may be a material having excellent elasticity that can be compressed and deformed.

By the way, the shaft portion 14 of the seal body 11 is fitted into a bearing provided on the lower frame of the panel 4 and is pivotally supported, so that the seal body 11 can rotate about the shaft portion 14.
FIG. 3 shows a front view when the seal body 11 is attached to the lower end portion of the panel 4, and FIG. 4 shows a vertical sectional view thereof. The tip end side of the seal body 11 is raised, and a gap is formed between the seal body 11 and the lower rail.

As shown in FIG. 4, the seal body 11 is attached to the lower stile 17 of the panel 4, and the shaft portion 14 is fitted and supported by the bearing portion 18 formed on the lower stile 17. A spring 19 formed by bending a metal wire (spring wire) is attached to the lower stile 17, one end of which is locked to the lower stile 17, and the other end of which is locked on the upper surface 15 of the main body of the seal body 11. It is locked in the groove 16. The tip side of the seal body 11 is lifted by the action of the spring force of the spring 19.
Here, the means for lifting the tip end side of the seal body 11 is not limited to the spring material 19.

5 and 6 show a case where the seal body 11 rotates and the tip end side is lowered, and the gap 21 between the lower end of the panel and the lower rail 20 is closed. A rod 22 is attached to the panel 4, and the rod 22 can be lowered and the seal body 11 can be pushed down at the same time by operating the handle. A projecting piece 23 is formed so as to project from the rod 22, and the projecting piece 23 can hit the upper surface 15 of the main body of the seal body 11 and push it down. Therefore, the rubber piece 13 attached to the tip of the pushed-down seal body 11 is pressed against the lower rail 20 to close the gap 21.

The rod 22 lowered by the handle operation is fitted into the guide groove 24 of the lower rail 20 to fix the auxiliary joint 10 of the folding door. That is, the rod 22 is attached to the auxiliary joint 10 of the folding door 1, and the projecting pieces 23, 23 project from both sides of the rod 22. Therefore, the auxiliary joint 10 is fixed by lowering the rod 22 by operating the handle, and at the same time, the seal bodies 11 and 11 of the side panels 4 and 4 of the auxiliary joint 10 are pushed down to close the gaps 21 and 21. ..
Then, when the folding door 1 is folded to open the frontage 2, if the rod 22 is raised by operating the handle, the spring force of the spring 19 acts to rotate the seal body 11 and lift the tip side.

The folding door device described in the above embodiment includes a lower rail 20, and a slider 7 extending downward from the main joint 5 is loosely fitted in the guide groove 24 of the lower rail 20. Then, when the rod 22 descends into the same guide groove 24, the lower end portion thereof can be fitted.
However, in the case of the folding door device according to the present invention, it is possible to configure the folding door device without using the lower rail 20.

If the lower rail 20 is not provided, the folding door 1 lacks some stability when it expands and contracts, but the seal body 11 is pushed down with the folding door 1 extended and the frontage closed, and the rubber piece 13 at the tip is pressed against the floor surface. If so, the lower end of the folding door 1 is stable in place without shaking. That is, the seal body 11 not only can close the lower end gap 21 of the folding door 1, but also functions to stabilize the lower end of the folding door 1 at a predetermined position.

1 Folding door 2 Frontage 3 Frame body 4 Panel 5 Main joint 6 Suspension car 7 Slider 8 Upper rail 9 Lower rail
10 Auxiliary fitting
11 Seal body
12 body
13 Rubber pieces
14 Shaft
15 top surface
16 Locking groove
17 Lower stile
18 Bearing
19 spring
20 Lower rail
21 Gap
22 rod
23 Pieces
24 Guide groove

Claims (2)

In a folding door device composed of a plurality of panels connected by joints, a seal body that can rotate around a shaft and is elastically urged so that the tip side can always be lifted is attached to the lower end of the panel. In addition , the auxiliary joint that projects outward from the rail when the panels are connected and folded has a rod that descends by operating the handle, and the seal body rotates as the rod descends. in so that depressed Te, on both sides of the rod projecting projecting pieces hitting the upper surface of the main body of the seal body, and plugging the gap formed door lower end folded in pressure contact with the lower rail or the floor surface to the tip of the sealing body A folding door device provided with a rubber piece or a soft resin piece that is compressed and deformed so as to be able to perform . The folding door device according to claim 1, wherein a bearing portion is provided on the lower frame of the panel, and a shaft portion formed on the seal body is fitted to the bearing portion to pivotally support the seal body.

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