JPH0754551Y2 - Rail closing device under the folding door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a closing device for preventing wind and rain from entering from a lower rail in a folding door device.

(Prior Art) A folding door device is a state in which a plurality of doors are flexibly connected by a joint, a running tool is attached to an upper part, a slider is projected to a lower part, and the running tool can run on an upper rail. And the slider is guided by the lower rail. The folding door is opened and closed by moving the traveling tool along the upper rail. FIG. 4 shows a general folding door device, in which a plurality of doors 1a, 1b ... Are connected by joints 2a, 2b ... 3a, 3b ..., and an upper rail 4, a lower rail 5 and a suspension frame 6,
The folding door is attached to a frame body that is framed with the pull frame 7. FIG. 5 is an enlarged view of the vertical cross section, showing the main joints 2a, 2b ..., the suspension base frame 8 and the pull bar frame 9.
.. are attached to the upper ends of the doors, and the doors 1a, 1b .. Then, in order to improve the airtightness and watertightness of the folding door device configured as described above, the upper rail 4
Also, sealing materials 11 and 12 as shown in the figure are attached to the lower rail 5. These seal members 11 and 12 prevent wind and rain from invading through the upper rail 4 and the lower rail 5, but such a structure is not sufficient, and in particular rainwater intrusion from the lower rail 5 is prevented. Will forgive. Furthermore, in the case of a folding door device that opens and closes along curved rails, since a gap is generated between the sealing materials 11 and 12 and the doors 1a, 1b, ..., In reality, the sealing effect is reduced.

(Object of the Invention) As described above, the conventional folding door sealing device has the above problems. The present invention aims to solve these problems, and provides a lower rail sealing device that is more airtight and watertight.

(Structure and operation of the present invention) The lower rail sealing device according to the present invention has the following features. That is, the sealing device of the present invention has a double airtight structure in which a first airtight material and a second airtight material are provided, and both airtight materials are provided along a lower rail with a predetermined interval, and a space is provided between them. Parts are formed. Here, the space portion does not simply mean a space formed between the first airtight material and the second airtight material, but the wall thickness of the lower rail to which both airtight materials are attached is reduced to make the space portion. The inner wall surface is made concave to form the space. A slider for guiding the lower rail is attached to the lower end of the joint connecting the doors, and the width of the slider is slightly larger than the expected width of the panel to close the gap between the hinges. The guide groove into which the slider is loosely fitted forms a space having a water repelling function on its inner wall surface.

Here, the first airtight material is located at a position in contact with the lower end surface of the door, and the second airtight material is located above the space portion,
You can touch the surface of each door. Therefore, the cross section of the lower rail of the present invention is not U-shaped, and the inner side wall is higher than the outer side wall.

By the way, by configuring the sealing device for the lower rail in this way, wind and rain that has entered from the outside through the gap between the outer wall of the lower rail and the slider enters the guide groove, but a space is formed on the inner wall. The wind pressure that tends to be pushed upward is blocked in the space. Therefore, the wind and rain pushed up through the gap between the inner wall surface and the slider is blocked by the first airtight material, and the partially passed wind and rain is further blocked in the upper space. That is, since the gap between the inner wall surface and the slider, especially the gap between the first airtight member and the door, is small, the wind and rain passing through these gaps rises at a relatively high speed, but the space formed above the first airtight member is large. ,
Therefore, the rising speed is lost and the energy passing through the second airtight material is lost. The present invention has a double airtight structure of a first airtight material and a second airtight material, and further can form a space below and above the first airtight material to provide a sealing function for the lower rail. .

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment) FIG. 1 shows an embodiment of the lower rail sealing device of the present invention,
The lower rail 5 has two lower rail pieces 13a and 13b as shown in FIG.
It is composed of a piece, and the bottom sides 14a and 14b are partly overlapped and screwed. Of course, each lower rail piece 13a, 13b
Is an extruded material having a predetermined cross section, and a guide groove 15 extending in the longitudinal direction is formed in the lower rail 5 configured by being combined with each other. Inside the guide groove 15, the main slider 16 and the sub slider 17 is loosely fitted. There are slight gaps 20 and 20 between the sliders 16 and 17 and the outer wall surface 18 and the inner wall surface 19 of the lower rail 5, respectively.
16 and 17 move along the guide groove 15 when opening and closing the folding door.

As shown in the figure, the height of the lower rail piece 13b located inside is higher than that of the outer lower rail piece 13a, and the first airtight member 21 is located at the intermediate position and the second airtight member is located above it. twenty two
Are attached to each other, and the tip of the first airtight member 21 contacts the lower end surface 23 of each door 1a, 1b ... And the tip of the second airtight member 22 also contacts the surface 23 of each door 1a, 1b. Is in a state. In the present invention, the materials and shapes of these airtight members 21 and 22 are not limited, but it is necessary that they are elastic and capable of contacting the surface 23 of the door. In the embodiment shown in FIG. 1, the airtight members 21 and 22 have a V-shaped cross section, and elasticity is provided by the degree of bending of the airtight members 21 and 22 to make contact with the surface 23 of the doors 1a, 1b.

On the other hand, the inner wall surface 19 of the lower rail piece 13b does not form a single plane and forms a recess, and the inner wall surface 19 of the guide groove 15 has the first space portion 24 and the first airtight material 21. A second space 25 is formed between the second airtight materials 22. FIG. 2 is an enlarged view of the lower rail 5. The wind and rain that has passed through the gap 20 between the outer wall surface 18, the sliders 16 and 17 enters the guide groove 15, and the first space portion 24
A vortex is generated and flows backward. That is, the inner surface 26 of the first space portion 24
It is possible to prevent the wind and rain rising upon hitting the upper surface 27 from flowing back and entering the gap 20 between the inner wall surface 19 and the sliders 16 and 17. The slight wind and rain passing through the gap 20 hits the inverted V-shaped first airtight member 21 which is open downward, and the wind and rain passing between the first airtight member 21 and the doors 1a, 1b ... Is further reduced. The wind and rain blown on the folding doors not only invade the lower rails 5, but also press on the doors 1a, 1b, ... 1. A gap is created between the airtight member 21 and the door surface 23, and a slight amount of wind and rain passes through the gap. Of course, in addition to these gaps, they often enter through the gaps formed in the hinge part of the joint. Although the wind and rain that has passed through the first airtight member 21 enters the second space 25 in this manner, the volume of the second space 25 is large, so the wind pressure is reduced and the second space 25 is attached above. The energy enough to pass through the airtight material 22 is lost.

FIG. 3 shows a cross section of the storage part of the folding door device. A part of the outer wall of the lower rail 5 is deleted so that the doors 1a, 1b ... ing. Of course, the outer guide piece 28 of the upper rail 4 is also removed.

As described above, in the lower rail sealing device of the present invention, the first airtight material and the second airtight material are attached to the inner wall surface of the lower rail, and there is a space between the airtight materials and below the first airtight material. The following effects can be obtained by forming the.

(Effect) (1) Since the lower rail sealing device of the present invention has a double airtight structure using the first airtight material and the second airtight material, the wind and rain passing through the first airtight material will not be generated by the second airtight material. Because it can be cut off,
The sealing effect is great.

(2) Further, the sealing device of the present invention not only adopts a double airtight structure, but also forms a space between both airtight materials,
Further, since another space portion is formed below the first airtight member, the flow direction of wind and rain is changed in these space portions to cause backflow, and a function of reducing wind pressure can be exhibited. Therefore, a further sealing effect can be obtained in combination with the sealing function of the airtight material.

(3) On the other hand, the width of the slider is made slightly larger than the expected width of the panel and the tip of the first airtight material is positioned at the boundary between the slider and the panel surface to prevent the flow from entering the first space to the second space. You can do it, and you can get a more airtight effect.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a lower rail sealing device of the present invention, FIG. 2 is an enlarged view of a lower rail portion, FIG. 3 is a sectional view of a storage portion, and FIG. 4 is a general folding. FIG. 5 shows a specific example of a door device and a conventional sealing device. 1 ... Door, 2 ... Main joint, 3 ... Secondary joint, 4 ... Upper rail, 5 ... Lower rail, 6 ... Suspension frame, 7 ... Puller frame, 8
…… Suspension frame, 9 …… Puller frame, 10 …… Running gear, 11,12 ……
Sealing material, 13 ... Lower rail piece, 14 ... Bottom, 15 ... Guide groove, 16 ... Main slider, 17 ... Sub slider, 18 ...
… Outer wall surface, 19 …… Inner wall surface, 20 …… Gap, 21 …… First airtight material, 22 …… Second airtight material, 23 …… Surface, 24 …… First space part, 25 …… Second space Part, 26 ... inner surface, 27 ... upper surface, 28 ...
… Guide pieces.

Claims (4)

[Scope of utility model registration request] 1. A plurality of doors are flexibly connected through a joint, are suspended from an upper rail by a running tool attached to the upper end of the joint, and a slider attached to the lower end of the joint is used as a guide for the lower rail. In a folding door device which is loosely fitted in a groove, the inner wall of the lower rail is made higher than the outer wall, and the inner wall of the inner wall is spaced a predetermined distance from the first airtight member and the second airtight member. Is formed along with the inner wall surface of the guide groove, and a space portion is formed between the both airtight members, and the inner wall surface of the guide groove is formed further below the first airtight member arranged below. A rail closing device for a lower door of a folding door, which is characterized by forming a space portion. 2. The lower rail sealing device for a folding door according to claim 1, wherein the first airtight member is provided along a position in contact with a lower end surface of each door. 3. A utility model registration claim according to claim 1, wherein the first airtight material and the second airtight material have a substantially V-shaped cross-section and are attached to the inner wall surface with the lower part opened. The rail closing device under the folding door according to item 2. 4. The lower rail of the folding door according to claim 1, 2, or 3, wherein the width of the slider attached to the lower end of the joint is slightly larger than the expected width of the panel. Sealing device.