JPH074148A - Folding door - Google Patents

Abstract

(57) [Summary] [Object] To provide a structure in which a panel having a large width can be mounted even when a folding panel unit is mounted on a rail having a curved portion. [Structure] A plurality of panels are foldably connected via a joint member to form a panel unit. The panel unit is assembled so that it can be opened and closed along a pair of rails 1 and 2 provided on the building. Frame 4 on the rail side of each panel
Thin protrusions 4m and 4n over the entire length on b and 4d
And the protrusions 4m, 4n were inserted into the guide grooves 1a, 2a of the rails 1, 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding door formed by connecting a plurality of panels with a joint member, such as a shutter installed in an opening of a building or a garage, a partition door, and the like, and particularly to a folding door. The present invention relates to a rail-side frame structure suitable for being applied to a folding door that is opened and closed along a rail.

[0002]

2. Description of the Related Art Conventionally, the folding door has a perspective view of FIG. 5, a longitudinal sectional view of FIG.
As shown in the cross-sectional view of FIG. 7, the bearing portion 4f formed on the vertical frame 4a made of the extruded shape of each panel 4 and the first and second joint members 5, 6 made of the extruded shape are formed. A cylindrical support shaft 5a or 6a is rotatably fitted and the panel 4 and the joint members 5 and 6 are alternately connected to form a foldable panel unit 3 composed of a plurality of panels 4. Also,
The hanging roller 20 attached to the upper end of the first joint member 5 is rotatably mounted on the hanger rail 1b of the upper rail 1, and the guide roller 21 attached to the lower end of the joint member 5 is attached to the lower rail 2. The guide rollers 22 and 23 fitted into the guide groove 2a and attached to the upper and lower ends of the second joint member 6 are fitted into the guide groove 1a of the upper rail 1 and the guide groove 2a of the lower rail 2, respectively. Further, the upper frame 4b and the lower frame 4d of the panel 4 are inserted into the guide grooves 1a and 2a of the pair of upper and lower rails 1 and 2 which mount the panel unit 3 in a building or garage, and the upper ends of the upper frame 4b There is no gap between the lower end of the upper rail 1 and the lower end of the lower frame 4d and the upper end of the lower rail 2 when viewed from the outside or the inside.

In such a conventional folding door, upper and lower rails 1 and 2 are formed to be curved as shown in FIGS. 5 and 7 in a corner portion of a room surrounded by the doors. Also, the upper and lower rails may be curved in an S shape. However, as described above, in the structure in which the upper frame 4b and the lower frame 4d of the panel 4 are respectively inserted into the guide grooves 1a and 2a, the upper and lower frames 4b and 4d are formed in the rail curved portion.
Needs to pass smoothly without contacting the inner walls 1c, 2c of the guide grooves 1a, 2a, the width L _{1 of the} panel 4 is the width W of the guide grooves 1a, 2a and the upper and lower frames 4b, 4c.
It will be determined by the difference (W−S ₁ ) from the width S _{1 of} d and the radius of curvature R of the curved portion. As in the conventional structure, in the case where the widths S ₁ of the upper and lower frames 4b and 4d are the same over the entire upper and lower sides, the width L _{1 of the} panel 4 is reduced as the radius of curvature R is decreased because the rail curved portion is passed. It is necessary to shorten the length, and as a result, it is necessary to connect a large number of panels 4 having a short width L ₁ , the number of parts such as the panel 4 and the joint members 5 and 6 increases, and the number of assembling steps for these increases. There was a problem that the cost would be high. Especially the panel body 4e
In the door section that constitutes the panel unit as transparent glass or resin, transparent glass for the entire opening area of the entire door section,
The area of the resin or the like, that is, the effective opening area is greatly reduced. Further, since the number of joint members increases, there is a problem that the appearance becomes inferior.

In order to solve such a problem, Japanese Utility Model Laid-Open No. 189489/1987 proposes an example in which each panel has a curved shape that matches the curvature of the curved portion of the rail. If the structure described in this publication is adopted, it is difficult to fold because the panel is curved, and since the panel is bent in a certain direction, it is difficult to cope with an S-shaped meandering track or the like. In addition, since the panel body 4e fitted in the frame has a special structure, there is a problem that the cost becomes high. In Japanese Utility Model Publication No. 2-4234, the opening width W of the guide grooves 1a and 2a is provided only in the curved portion of the rail.
Although a structure having a wide width is disclosed, this structure has a problem that a special rail is required and the cost is also high.

In view of the above problems, the present invention can increase the width of the panel even when it is used in a folding door in which a panel unit is openably and closably mounted along a rail having a curved portion. Therefore, it is possible to reduce the number of parts and assembling man-hours of the folding door to achieve cost reduction, and to provide a folding door that does not reduce the effective opening area of the door portion and improves the appearance. .

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a panel unit in which a plurality of panels are foldably connected via joint members along a pair of upper and lower or left and right rails. In the folding door assembled so as to be openable and closable, a protrusion having a smaller thickness than the main body of the frame is formed on the rail-side frame of each of the panels over the entire length, and the protrusion is formed. It is characterized in that it is inserted into the guide groove of the rail.

[0007]

According to the present invention, since the protruding portion having the thin rail-side frame of each panel constituting the panel unit is inserted into the guide groove of the rail, the rail bending portion of the rail is formed. The frame is less likely to contact the wall surface of the guide groove, and the width of the panel can be increased.

[0008]

1 is a perspective view showing an embodiment of a folding door according to the present invention, FIG. 2 is a longitudinal sectional view thereof, FIG. 3 is a front view thereof, and FIG. 4 shows a state in a curved portion of the rail. FIG. As shown in FIGS. 1 to 4, the folding door of the present example has a thickness smaller than the thickness S ₁ of the main body of the upper and lower frames 4b and 4d on the upper and lower frames 4b and 4d of the panel 4 over substantially the entire length of the panel. protrusion 4m with S _2, formed to protrude to 4n to the rail 2 side, respective protrusions 4m, the 4n vertical les - are inserted Le 1,2 guide groove 1a, the 2a. Other structures are the same as those described in the conventional example.

Thus, the thickness S ₂ of the protrusions 4m and 4n is
Is smaller than the thickness S ₁ of the main body of the upper and lower frames 4b and 4d. Therefore, compared with the case of inserting the frames having the same upper and lower thicknesses into the guide grooves 1a and 2a as in the conventional example, Even if the width L ₂ of the panel 4 is increased, the frame portions are less likely to contact the inner walls 1c, 2c of the guide grooves 1a, 2a, and the width L _{2 of the} panel 4 can be increased. Therefore, it is possible to reduce the number of the panels 4, whereby the joint members 5,
The number of 6 can also be reduced and the effective opening area is not reduced. Further, as a result, the number of assembling steps can be reduced and the manufacturing cost can be reduced. Further, the appearance is improved as compared with the door configured by a large number of joint members.

Although the present invention has been described with reference to the embodiment of the horizontal pull-type folding door, the present invention can also be applied to a vertical pull-type folding door. In addition to the above embodiments, the present invention can be modified or added in various ways with respect to the structure and combination of rails, panels, joint members, guide grooves, upper and lower frames, and protrusions without departing from the scope of the present invention. is there.

[0011]

According to the present invention, the thin projection formed on the rail-side frame of each panel constituting the panel unit is inserted into the guide groove of the rail. The width of the panel can be increased, resulting in
The panel unit can be configured without reducing the effective opening area of the door portion, and the appearance is improved. Further, the number of panels and joint members can be reduced, and the number of assembling steps can be reduced, so that the manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a folding door according to the present invention.

FIG. 2 is a vertical sectional view of the embodiment.

FIG. 3 is a front view of the embodiment.

FIG. 4 is a transverse cross-sectional view showing a state in the curved portion of the rail of the embodiment.

FIG. 5 is a perspective view of a conventional folding door.

FIG. 6 is a vertical sectional view of a conventional example.

FIG. 7 is a cross-sectional view showing a state in a curved portion of a rail of a conventional example.

[Explanation of symbols]

 1 Upper Rail 1a, 2a Guide Groove 2 Lower Rail 3 Panel Unit 4 Panel 4a Vertical Frame 4b Upper Frame 4d Lower Frame 4e Panel Main Body 4m, 4n Projection Part 5, 6 Joint Member

Claims (1)

[Claims] 1. A folding door in which a panel unit, in which a plurality of panels are foldably connected via a joint member, is assembled so as to be openable and closable along a pair of upper and lower rails or left and right rails. In the rail-side frame, a protrusion having a smaller thickness than the main body of the frame is formed over the entire length so as to protrude toward the rail side, and the protrusion is inserted into a guide groove of the rail. Folding door.