JPH06146697A - Folding door device - Google Patents

Abstract

PURPOSE:To enable smooth folding operation and slide movement of a door body constituted by connecting two pieces of door panels to each other by a hinge free to fold even in the case when dispersion is caused at opening height between upper and lower rails. CONSTITUTION:A hinge 2 constituted by connecting door panels 1a, 1b of a door body 1 to each other free to fold pivotally installs short cylindrical bearing parts 21, 22 provided on a facing inside edge of a hinge half piece 2a fastened on one door panel 1a and a hinge half piece 2b fastened on the other door panel 1b by a shaft body 9 free to revolve. Additionally, by providing a suitable interval part 11 between the vertically facing bearing parts 21, 22, the both hinge half pieces 2a, 2b are made possible to relatively move in the lengthy direction of the shaft body 9 respectively. Both door panels 1a, 1b suspended from an upper side rail 7 through a roller 3 are independently made to move vertically in accordance with opening height between upper and lower rails.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a folding door device in which a door body formed by connecting two panels in a foldable manner is slidably arranged between upper and lower rails.

[0002]

2. Description of the Related Art Conventionally, a folding door of this kind has a door body formed by vertically connecting two opposite door ends of two rectangular door panels with a hinge so that the door body can be opened and closed. The door body is suspended between the upper and lower rails laid on the opposing surfaces of the frame, and the rollers mounted on both outer upper end surfaces of the door body are rotatably locked to the upper rail and the door body is suspended and supported. By slidingly fitting the pivots or rollers attached to both outer lower end surfaces to the lower rails, it is possible to move laterally along the rails, and the door panels can be folded via the hinges. ing.

When this folding door is mounted between the upper and lower rails, the opening size between the upper and lower rails is determined by the unevenness of the ceiling height, the unevenness of the floor, and the bending of the rail due to the load of the door. Since there is variation in the length direction, the height of protrusion of the hanging roller protruding from the upper surface of the outer end portion of the door panel from the upper end surface of the door body is adjusted in response to this variation. .

[0004]

However, when a large number of door bodies are laterally arranged in series between the upper and lower rails of a long opening frame having a wide opening width, such a wide opening width is not enough. Since the variation in the opening height as described above is further increased, even if one door body is built by adjusting the height position of the hanging roller as described above at a specific position between the upper and lower rails, A situation occurs in which the door body does not match the opening height of the other rail part, so that
When a large number of doors are folded and gathered together on one end side of the upper and lower rails to open the entire surface,
As shown in Fig. 3, the upper end corners of the door may slidably contact or abut against the lower surface of the upper rail on the way of opening the door, which hinders sliding of the door and prevents smooth opening / closing operation. There is. An object of the present invention is to provide a folding door device that can solve such problems.

[0005]

In order to achieve the above-mentioned object, the folding door device of the present invention has a door body formed by connecting two opposed inner surfaces of two panels by a hinge so as to be foldable between upper and lower rails. , The rollers mounted on the upper ends of both outer ends of the door body are rotatably locked to the upper rail, and the pivots or rollers mounted on the lower end are slidably fitted in the lower rail. In a foldable folding door,
The hinge is configured such that hinge halves fixed to the two panels respectively are rotatably connected by a shaft body and both hinge halves are relatively movable in the axial direction of the shaft body. It is a thing.

As such a relative movement mechanism, for example, as described in claim 2, a short tubular shape is provided between the upper and lower end portions of the inner edge of one hinge half piece and the middle portion of the inner edge of the other hinge half piece. Bearing units are integrally formed, and the shaft bodies are inserted into these bearing units to fix the upper and lower bearing portions of the one hinge half piece to the upper and lower end portions of the shaft body, and the other hinge half pieces. It is possible to employ a structure in which the bearing portion is axially movable between the upper and lower bearing portions of one hinge half piece with or without a spacer interposed therebetween.

[0007]

When the door body formed by connecting the two door panels to each other by the hinges so as to be foldable is arranged between the upper and lower rails and the door body is laterally moved along the rail, the upper and lower rails are moved. When passing through a part where there is variation in the opening height between the panels, the panels that make up the door body move up and down individually in the direction of the hinge shaft body according to the variation and absorb the above variation. The smooth opening / closing operation can be performed without the corners of the outer ends of the respective panels slidingly contacting or hitting the rail.

[0008]

Embodiments of the present invention will now be described with reference to the drawings.
Reference numeral 1 denotes a door body in which two vertically long rectangular door panels 1a and 1b are arranged side by side and opposite inner edges are foldably connected only to the front side by a hinge 2. The outside of the door body 1 Rollers 3 and pivots 4 are attached to the upper and lower surfaces at the ends, respectively, and the rollers 3 are rotatably locked to upper rails 7 laid on the opposite surfaces of the upper and lower opening frames 5 and 6 to suspend the door body 1. While supporting, the pivot 4 is slidably fitted in the lower rail 8.

As shown in FIGS. 2 and 3, the hinge 2 has a pair of hinge halves 2a, 2b made of metal plate, and inner facing edges of the hinge half are rotatably connected to each other by a shaft 9. The connecting structure is such that short tubular bearing portions 21, 21 are integrally formed at the upper and lower ends of the inner edge of one hinge half piece 2a, and the upper and lower end portions of the shaft body 9 are attached to the bearing portions 21, 21. The upper and lower bearing portions 21, 21 are integrally fixed to the shaft body 9 in a state of being inserted and
Bearings 22 and 22 in the form of short cylinders having an inner diameter slightly larger than that of the bearing portion 21 are integrally formed at two positions above and below the intermediate portion at the inner edge of the other hinge half piece 2b. Parts 22 and 22 are shafts 9
It is freely rotatably fitted in the middle part of the.

Further, an appropriate space is provided between the bearing portions 21 and 22 facing each other in the vertical direction, and the cylindrical spacer 10 is loosely fitted to the shaft body 9 exposed in the space so as to be vertically movable. By interposing, both hinge halves 2a and 2b can be moved relative to each other in the axial direction in accordance with an interval 11 of about 1 to 10 mm, preferably 2 to 5 mm, which corresponds between the spacer 10 and the bearings 21 and 22. Is configured. It should be noted that the spacer 10 serves to reduce the generation of noise and friction with respect to the rotation of both hinge halves 2a and 2b.
When the is not used, the interval 11 corresponds to the interval between the bearing portions 21 and 22.

A coil spring 12 wound around the shaft body 9 is provided between the upper and lower bearing portions 22, 22 fitted in the intermediate portion of the shaft body 9, and both ends of the coil spring 12 are provided. Vertical holes formed in the center of the hinge halves 2a and 2b, respectively.
It is locked on 13 and 14 so that it can slide up and down. When the coil spring 12 is arranged between the bearing portions 22, 22 that can move up and down with respect to the shaft body 9 as described above, such a vertically long hole is integrated with the bearings 22, 22. Because it moves
It may be provided only on the hinge half piece 2a side having the bearing 21 that is vertically movable in the axial direction of the shaft body 9.

The hinge 2 constructed in this way is the door panel 1
The hinge halves 2a, 2 are arranged at appropriate intervals in the length direction of a, 1b.
b are fixed to the door panels 1a and 1b respectively with screws or the like, and these door panels 1a and 1b are foldable against the elastic force of the coil spring 12 and vertically along the shaft 9 of the hinge 2. They are connected so that they can move relative to each other. The coil spring 12 is wound so that its spring force is increased when the door panels 1a and 1b are bent in the folding direction through the hinges 2, and the weight of the door when folded. It is adjusted so as to be stationary at that folding angle, and therefore, when it is operated from the folded state in the closing direction of the opening (direction in which both door panels 1a and 1b are in the horizontal state), its spring force acts. Therefore, a smooth closing operation can be performed.

On the other hand, the roller 3 disposed on the upper surface side at the outer end of the door body 1 is rotatable on both front and rear side surfaces of the support member 15 slidably fitted in the upper rail 7 as shown in FIG. The supporting member 15 is pivotally supported and is rotatably connected to the upper end of a screw shaft 16. The screw shaft 16 is screwed into the upper surface of the door body 1 so that the protruding length thereof can be adjusted. The roller 3 is hooked on the upper rail 7 to move the door body 1 in a suspended state. Further, the pivot 4 protruding from the lower surface at the outer end of the door body 1 is slidably fitted in the lower rail 8, but a roller may be adopted instead of the pivot 4. .

A plurality of door bodies 1 configured as described above are shown in FIG.
As shown in FIG. 3, the upper and lower rails 7 and 8 are arranged in parallel to each other to open and close the openings such as entrances and exits. In this state, the upper and lower rails 7 and 8 are bent by the bending deformation of the opening frame (not shown) or the like that fixes these rails, for example, bending from both ends toward the center as shown in the figure. If it is open, both door panels 1a of the door body 1,
If 1b is firmly connected by hinges 2 that do not move relative to each other in the axial direction, both door panels 1a, 1b will move or fold along upper and lower rails 7, 8 with the upper end surfaces always being flush. Since the opening and closing of the opening is performed by, the operation cannot be performed smoothly.

That is, in the conventional example, as shown in FIG. 6, the upper rail 7 bends downward from one door panel 1a side suspended by the roller 3 to the upper rail 7 toward the other door panel 1b. When deformation occurs, both door panels 1a,
As described above, 1b is connected through the hinges 2'which do not move axially relative to each other with the upper end surface thereof flush with the horizontal direction, so that one door panel 1a is connected to the upper rail 7 by the roller 3
Although the roller 3 of the other door panel 1b is lifted from the upper rail 7, the outer upper corner of the door panel 1b slidably contacts the lower surface of the upper rail 7 despite being slidably supported via Or, it will be in a struck state, which will hinder the folding operation and the opening / closing movement operation.

On the other hand, in the embodiment of the present invention, as described above, both door panels 1a and 1b constituting the door body 1 are formed.
The hinge 2, which is foldably connected between the two, comprises a hinge half piece 2a of the hinge 2 fixed to one door panel 1a and a hinge half piece 2b fixed to the other door panel 1b. Since it is possible to move up and down in the length direction of the shaft body 9 by a dimension corresponding to the interval 11 between the bearings 21 and 22, both door panels 1a and 1b can move relative to each other in the up and down direction. As shown in FIG. 5, depending on the amount of bending of the upper rail 7, one door panel 1a
On the other hand, the other door panel 1b moves in the vertical direction, and both door panels 1a and 1b are smoothly folded and opened / closed at any part of the rail 7 with the roller 3 suspended from the upper rail 7. The move operation becomes possible. At this time, the coil spring 12 wound around the center of the shaft body 9 by the relative movement of the two halves 2a and 2b of the hinge 2 has both ends thereof bored in the hinge halves 2a and 2b. Since it moves up and down in the holes 13 and 14, there is no risk of hindering the movement of the hinge halves 2a and 2b.

[0017]

As described above, according to the folding door device of the present invention, the hinge halves fixed to one door panel and the hinge halves fixed to the other door panel which compose the door body. ,
Since these half pieces can be moved relative to each other in the axial direction of the shaft body which is pivotally attached to each other, the opening height between the upper and lower rails varies due to bending in the rail length direction. In this case, both door panels can move relative to each other in the vertical direction according to the change in the opening height to absorb the variation, and therefore, the corners of the door body may slide on or abut the rail. Smooth opening and closing operations and light movement are possible without being restricted.

[Brief description of drawings]

FIG. 1 is a simplified front view showing a state in which a plurality of door bodies are arranged between upper and lower rails,

FIG. 2 is a rear view of the connecting portion,

FIG. 3 is a perspective view of a hinge,

FIG. 4 is a vertical sectional side view of a roller portion,

FIG. 5 is a front view showing a suspension support state of the present embodiment adapted to the bending of the upper rail,

FIG. 6 is a front view showing a state of a conventional example in which the upper rail cannot be flexed.

[Explanation of symbols]

 1 Door 1a, 1b Door panel 2 Hinges 2a, 2b Hinging half piece 3 Roller 4 Pivot 7, 8 Up-down rail 9 Shaft 11 Spacing 21, 22 Bearing part

Claims (2)

[Claims] 1. A door body formed by connecting two opposed inner end portions of two panels by hinges so as to be freely foldable is arranged between upper and lower rails and attached to upper ends of both outer end portions of the door bodies. In the folding door in which the roller is rotatably locked to the upper rail and the pivot or the roller attached to the lower end is slidably fitted in the lower rail, the hinge is
The hinge halves fixed to the two panels are rotatably connected by a shaft, and both hinge halves are relatively movable in the axial direction of the shaft. Folding door device. 2. The axial relative movement mechanism of both hinge halves,
Short tubular bearings are integrally formed on the upper and lower ends of the inner edge of one hinge half and the middle of the inner edge of the other hinge half, and the shaft body is inserted into these bearings to form the shaft. The upper and lower bearings of the one hinge half piece are fixed to the upper and lower ends of the body, and the bearing portion of the other hinge half piece is axially interposed or interposed between the upper and lower bearing portions of the one hinge half piece. The folding door device according to claim 1, wherein the folding door device is movable without leaving a gap.