JPH10102891A - Folding door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly open or close a large panel fully covering a frontage, by fitting a hanging wheel at the upper end of the center and hanging it from a rail and supporting an arm frame at one side of the frontage and loosely fitting a slide ring pivotted at the upper and lower ends of the panel side end into the arms. SOLUTION: Slide rings 4 are loosely fitted in arms 6a, 6b. When a pressing force P acts at the front end of a panel 1, the panel rotates around a hanging wheel 3 and swings the arm 6 at the same time. The panel 1 is pulled toward the arm frame 2 side by the swing of the arm 6 and rotated while transferring to open the frontage. The rotary center of the panel 1 is the hanging wheel 3. The moment of inertia of the hanging wheel around the axis is extremely small in comparison with the moment of inertia of the panel used as an opening door around the panel side end. As a result, a force necessary for opening or closing motion of the panel 1 is small and hence the door can be smoothly opened or closed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding door having a single panel.

[0002]

2. Description of the Related Art In many cases, a folding door is attached to a frontage, and a folding door is known as the most typical example of the folding door. The foldable door connects a plurality of panels so that the panel can be bent. The foldable door is opened by opening each panel. A common folding door is a folding door with two panels connected, but a folding door that simply connects two panels has a large opening to the near side or the opposite side of the folded panel. As a result, the opening / closing operation is hindered. In addition, a folding rail requires a floor rail, and the presence of the floor rail is a hindrance when passing through a frontage in a wheelchair, for example.

In order to open and close the foldable folding door, it is necessary to slide it in the rail direction of the panel on the puller side, and this opening and closing operation requires a certain amount of force, making it difficult to perform the opening and closing operation while riding in a wheelchair. If a single hinged door is used instead of a folding door, the opening to the front side is doubled as compared with a folding type folding door, and in this case, it is inconvenient to take a wheelchair to open and close the hinged door. Since the hinged door is pivotally supported on one side with a hinge, the moment of inertia about the hinge becomes large, and the force required for the opening and closing operation is also large. Therefore, it is inappropriate to use a large and heavy door as a hinged door.

[0004]

As described above, the conventional folding doors and hinged doors have the above-mentioned problems. Problems to be solved by the present invention are these problems, and a folding door device which can be smoothly opened and closed by attaching a large panel with a full width of the frontage and does not hinder the passage of a wheelchair is provided.

[0005]

The folding door of the present invention is constructed so as to be opened and closed by rotating a panel which fits in the frontage. An arm frame is pivotally supported on one side of the frontage so as to be swingable, and arms of the arm frame are arranged above and below the panel. Here, a rail is provided along the upper end of the frontage, and a suspension wheel is mounted at an intermediate position of the panel, and this suspension wheel can run loosely on the upper rail and travel.

On the other hand, a slide wheel is attached to the upper and lower ends of the panel-side end on the arm frame side, and this slide wheel can be loosely fitted to the arm of the arm frame to slide. The arm has a cross section in which the slide wheel can be loosely fitted. by the way,
If the front end of the panel is pressed, the panel rotates and the arm frame swings, and at the same time, the hanging vehicle runs on the rail,
The slide wheel slides the arm. In order to make the folding door semi-automatic, the suspension wheel may be configured to be pulled by a mainspring. Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.

[0007]

FIG. 1 is a schematic view showing a folding door apparatus according to the present invention, wherein 1 denotes a panel, 2 denotes an arm frame, 3 denotes a suspension wheel, and 4 denotes a slide wheel. The panel 1 has a size that can fit in the entire frontage, and is suspended from a rail (not shown) via a suspension wheel 3 attached substantially at the center of the upper end 5. One arm frame 2 has a U-shape and has arms 6 a and 6 b on the upper and lower sides, and can swing about a shaft 7.

The cross sections of the arms 6a, 6b are substantially U-shaped, and the slide wheels 4, 4 can be loosely fitted and slid in the arms 6a, 6b. If the pressing force P acts on the front end of the panel 1, the panel 1 rotates around the hanging wheel 3 and simultaneously swings the arms 6a and 6b. When the arms 6a and 6b swing, the panel 1 is pulled toward the arm frame 2, that is, the panel 1 rotates while moving, and the frontage is opened.

The center of rotation of the panel 1 is the suspension wheel 3, and the moment of inertia about the suspension wheel 3 is much smaller than the moment of inertia about the panel side end when used as a hinged door. Force P required for opening and closing operation
Is small and can be smoothly opened and closed. When the frontage is completely opened, the panel 1 and the arms 6a and 6b are substantially parallel to each other and are moved toward the arm frame.

FIG. 2 is a detailed view showing the form of connection between the arm frame 2 and the panel 1. Notches 8a and 8b corresponding to the thickness of the arms 6a and 6b are formed at the upper and lower ends of the side of the panel. When the panel 1 is closed, the notches 8a, 8b
The arms 6a and 6b are accommodated so that no gap is left in the frontage. Although the form of the hoisting wheel 3 is not particularly limited, rollers 10 are supported on both sides of the main body 9, and guide rollers 11 are supported on the upper part.

Each of these rollers 10, 10,... Rolls on the running surface of the rail, and the guide rollers 11, 11 roll against the side surface of the rail. FIG. 3 is a vertical sectional view of the folding door,
The case where the hanging wheel 3 is loosely fitted to the rail and the case where the slide wheel 4 is loosely fitted to the arm 6 are shown. The rail 12 is attached to the upper rail of the three-way frame attached to the frontage, and the panel 1 can be rotated by freely moving the rail 3 on the rail 12.

As shown in the lower right half of FIG.
The slide wheel 4 attached to the notch at the upper and lower ends of the panel 1 is loosely fitted to the arm 6, and the arm frame 2 is supported by a shaft 7 fixed to a receiving member 13 provided on a vertical rail of a three-way frame. ing. The left half of the figure shows a panel section that is not cut out.

The folding door of the present invention rotates by opening the front end of the panel 1 to open the frontage, but the frontage of the folded panel is closed by pulling the front end of the panel. When the panel is folded, the suspension wheel 3 is drawn toward the arm frame 2 side. Therefore, when closing the frontage, the suspension wheel 3 can be pulled to the original position. A spring can be attached to the upper rail, and the spring can be pulled by this spring,
A semi-automatic folding door device that closes automatically.

As described above, in the folding door apparatus of the present invention, a suspension wheel is mounted on the center upper end and hung on a rail, and an arm frame is pivotally supported on one side of the frontage and is pivotally supported on the upper and lower ends of the panel side end. The slide wheel is loosely fitted to the arm,
The following effects can be obtained.

[0015]

The folding door apparatus according to the present invention can rotate around a hanging wheel attached to the middle of the panel, and at the same time, can move the rail with the swing of the arm. Therefore, at the same time as turning, the arm is pulled toward the arm frame and folded, and a large panel full of the frontage is turned and opened. In this case, since the large panel rotates about the hanging wheel provided in the middle, the moment of inertia becomes small, and the force required for the opening / closing operation is small.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a folding door of the present invention.

FIG. 2 shows a connection structure between an arm frame and a panel.

FIG. 3 is a vertical sectional view of a folding door.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Panel 2 Arm frame 3 Hanging wheel 4 Slide wheel 5 Upper end 6 Arm 7 Axis 8 Notch 9 Main body 10 Roller 11 Guide roller 12 Rail 13 Receiver

Claims (2)

[Claims] 1. A folding door that pivotally opens and closes a panel that is large enough to fit in the frontage, and a hanging car that is loosely fitted and runs on a rail along the frontage at the center of the upper end of the panel. A swinging arm frame is pivotally supported on one side of the frontage, and an arm extending horizontally from the upper and lower ends of the arm frame is loosely fitted so that a slide wheel pivotally supported on the side of the upper and lower ends of the panel can be moved. Feature folding door device. 2. A folding door that pivotally opens and closes a panel that is large enough to fit in the frontage, and a hanging car that is loosely fitted and runs on a rail along the top of the frontage at the center of the upper end of the panel. A swinging arm frame is pivotally supported on one side of the frontage, and the arm extending horizontally from the upper and lower ends of the arm frame is loosely fitted so that a slide wheel pivotally supported on the side of the upper and lower ends of the panel can be moved. A folding door device, wherein a wire extending from a mainspring is connected to the hanging vehicle.