JPH01247682A - Coupling device for folding door - Google Patents

Abstract

PURPOSE:To make a connected door body possible to be opened or closed crosswise along an optional curved track by installing three right, left and intermediate joint pieces in a connecting part of the door body, and making them mutually rotatable in the front and the back as holding the rail guide direction in between. CONSTITUTION:Three right, left and intermediate joint pieces 13, 14, 15 are installed in a connecting part of door bodies 4, 4, and each section circular or C-shaped insert engaging part 16 of these joint pieces 13, 14, 15 is fitted in each opposed recess engaging part 17. Then, receiving pieces 18, 18 along the rail guide direction are installed in the right and left joint pieces 13, 14, and a 90 deg. turning rage in given the front or the back side from the guide direction. also a turning range at the reverse side against both front and back sides, or the right and left joint pieces 13, 14 as holding the guide direction in between is given to the intermediate joint piece 15. With this constitution, these door bodies 4, 4, can be freely rotated to both front and back sides as holding the guide direction in between at the connecting part.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a horizontal-swing type folding door provided at the opening of a building such as a store or an indoor partition, and particularly to a folding door formed by connecting a plurality of door bodies. The invention relates to a connecting device.

[Prior Art] Conventionally, such a connecting device for a folding door has been proposed, for example, by
As seen in No. 34342, a single connecting joint piece is arranged between the left and right door bodies, and the side edge recessed engagement portion of the door body is fitted and slid onto the integrally molded sliding rod to connect each adjacent door body. They were supposed to be suspended so that they could rotate 90 degrees in opposite directions.

[Problems to be Solved by the Invention] However, according to such a conventional connecting device, the left and right door bodies can only be rotated to either the front or the back side of the guide rail so that the connecting door body can be folded, Even if it is intended to be used for a curved opening, its application area is extremely limited.1 For example, it is limited to a simple circular arc or a J-shaped rail with a simple tangent to it. It has been completely impossible to form any kind of curved track having the following characteristics.

The present invention has been made in view of the problems of the conventional folding door connecting device, and can be installed arbitrarily in various curved frontages of buildings, and has a relatively simple structure. To provide a connecting device for a folding door that is economical and can be kept in place.

[Means for Solving the Problems] The present invention has been completed in accordance with the above object, that is, the present invention has three joint pieces, left, right and middle, and each joint piece has a circular or C-shaped cross section. The engaging portions are rotatably fitted into the opposing recessed engaging portions, and the left and right joint pieces further have receiving pieces along the rail guide direction, so that the left and right joint pieces can be attached to one side of the front or back side from the guide direction. A folding door characterized in that the intermediate joint piece has a rotation range of 90 degrees, and the intermediate joint piece has a rotation WJ range on both sides of the front side across the rail guide direction or on the opposite side to the left and right joint pieces. The gist is the coupling device.

[Function] As a result of the above, the folding door connecting device of the present invention can be freely folded into a shape that projects at right angles from the rail guide direction of the door bodies connected by the left and right joint pieces, and the intermediate joint piece or the intermediate joint piece can be folded. The left and right joint pieces allow rotation to both front and rear sides across the rail guide direction, and the connected door body can be opened and closed laterally along any curved rail.

[Example] Hereinafter, an example will be described with reference to the drawings. In the figure, 1 is a folding door equipped with a connecting device 2 of the present invention, and the folding door 1 has a door body 4, a door body 4, It has a door body 5 which can be folded and opened/closed by connecting a large number of them and pulling them horizontally.

Of the four-periphery frame 3 of this example, the upper and lower frame members 3a and 3b have a grooved cross section and form the guide rail 6 of the door body, and the planar shape thereof bulges toward the front side as shown in FIG. It has a first curved part 6a having a substantially semicircular shape, and a second curved part 6b connected to this and having a curve on the back side, and furthermore, these are arranged almost symmetrically on the left and right with the straight part 6C in between. The overall case is M-shaped. As a result, the door body 5 needs to be bent on both sides of the front surface across the rail guide direction (in the curved section, the tangential direction at the position) in order to open and close the door.

The door main body 5 has an upper hanging door wheel 7 and a lower end guide roller 8 at each door body connection part, and is suspended from the upper rail and is guided by the upper and lower rails 6 to bellow the curved opening. It is said that it can be folded into a shape and can be opened and closed. Further, each door body holds a glass panel IO within the four-period frame set 9.

The connection device of this example is for each door body 4 in such a folding door l.
- Two connecting frames 11, 12 (made of extruded aluminum alloy) on the left and right are interposed between them, and adjacent door bodies are connected by three joint pieces 13, 14, 15 on the left, right and in the middle.

The joint pieces 13 to 15 of this example each have a C-shaped fitting portion 16 that is rotatably fitted into an opposing recessed portion 17.

These engaging portions 16.17 are formed integrally in the vertical direction at the respective contact portions of the side vertical stile 9a of the door body and the left and right connecting frames 11.12, and of course, these fitting and recessed shapes are not compatible with each other. It can be freely switched between the connecting parts, regardless of whether it is left or right.゛The left and right joint pieces 13 and 14 further have receiving pieces 18 and 18 along the rail guide direction.
8 is integrally molded on the front side of the left and right connecting frame, and the door body 4 cannot rotate toward the front side beyond the rail guide direction on these left and right joint pieces.On the other hand, the door body has a rail guide on the back side. The door body 5 is rotatable within a range of at least 90 degrees from the direction, and as shown in the left end of FIGS. 2 and 4, the door body 5 is
It is opened by protruding at right angles to the back side and folding it into a bellows shape.

Note that 2' in the figure is also a coupling device according to the present invention, but contrary to the above, the left and right joint pieces l, 3', and 14' have a rotation range of at least 90 degrees from the rail guide direction to the front side of the door. That is, in the door body 5 of this example, the above-mentioned connecting devices are alternately inverted and connected to each door body.

On the other hand, the intermediate joint piece 15 is formed between the left and right connecting frames 11 and 12 and rotatably connects them, but in this example, it has a rotation range of 45 degrees on both sides of the rail guide direction on the front and rear sides. are doing. As a result, in this example, the intermediate joint piece 15
The angle between adjacent layers is 180 degrees (in series, Fig. 1).
135 degrees on both sides of the front and back (see Figure 1 (A),
(C)).

Although not shown in the drawings, the joint piece may be partially provided at two or several locations in the vertical direction, and its fitting and retaining portion may be formed into the above-mentioned C-shaped cross section or a circular shape.

In addition, the intermediate joint piece has a rotation range on both sides of the front and rear surfaces across the guide direction as in the above embodiment, and can also have a rotation range limited to the sides opposite to the left and right joint pieces across the guide direction. In this case, it is possible to use the left and right joint pieces for rotation to the other side.

Furthermore, a plurality of intermediate joint pieces may be provided by interposing an intermediate connecting frame between the left and right connecting frames. In this case, it is possible to make each intermediate joint piece share the rotation range, for example, the left connecting frame and the left connecting frame. The first intermediate joint piece between the intermediate connecting frames is responsible for the rotation on the front side of the door, while the second intermediate joint piece between the intermediate connecting frame and the right connecting frame is responsible for the rotation on the back side, so that the required rotation range as a whole can be obtained. This can be advantageous in securing the strength of the joint piece.

Although the embodiments have been constructed as described above, the present invention is not limited to the specific shapes and structures of the left and right joint pieces, the intermediate joint piece, the fitting engagement part, the recessed engagement part, the receiving piece, etc., unless it is contrary to the above-mentioned gist. , material,
It goes without saying that the dimensions, number, arrangement and relationship thereof, the type of folding door provided with the coupling device, the arrangement shape of the guide rail, etc. can be varied in various ways and are not limited to the above embodiments.

[Effects of the Invention] The folding door connecting device of the present invention has three joint pieces, left, right and middle, and the left and right joint pieces have a rotation range of 90 degrees from the rail guide direction to one side on the front or back side. On the other hand, since the intermediate joint piece has a rotation range on both sides of the front side across the rail guiding direction or on the opposite side to the left and right joint pieces, the intermediate joint piece or the intermediate joint piece and the left and right joint pieces can guide the rail. It has a rotation range on both sides of the front and rear sides, and not only can it be moved straight forward without any obstruction, but it can also freely move along curved openings of buildings with S-shaped or other folded inflection parts. It is possible to open and close this.

In addition, the present connecting device has three joint pieces on the left, right, and middle, and each joint has a circular or C-shaped cross-section fitting engagement part that is rotatably fitted into the opposing recessed engagement part. As described above, despite having a rotation range on both sides of the front and back, the structure is relatively simple, which is advantageous in terms of cost, and the appearance can be made clean.

Furthermore, since the left and right joint pieces of the coupling device of the present invention have receiving pieces and have a rotation range only from the rail guide direction to one side of the front or back side, the door can be opened and closed correctly as described above. While the door body can be rotated freely on both sides of the back side, the folding part of the door body is restricted to only one predetermined side of the front back side with respect to the rail guide direction, so that it can be folded into a right-angled protruding shape. Folding and storage in the rail end door pocket etc. can be made smooth.

[Brief explanation of the drawing]

The drawings show an example, and FIG. 1 (A). (B) and (C) are cross-sectional views of the folding door coupling device according to the present invention, in which (A) is in the front side rotation state, (B) is in the serial state, (
C) shows a rotating state on the back side. Further, Fig. 2 is a cross-sectional view showing the door body of the connecting device in a folded state, Fig. 3 is an overall front view of the folding door equipped with the connecting device, and Fig. 4 is a cross-sectional view of the folding door. . 1...Folding door 15...Intermediate joint piece 2.
...Folding door coupling device 16...Fitting insertion engagement part 13--
・Left joint piece 17...Concave engagement part 14...
Right joint piece 18...Applicant for a cantilever license Swan Shoji Co., Ltd. Agent Patent attorney Kimiso Tamura Figure 2

Claims (1)

[Claims] It has three joint pieces, left and right and intermediate pieces, each of which has a circular or C-shaped cross-section fit-in engagement part that is rotatably fitted into an opposing recessed engagement part, and the left and right joint pieces further include It has a receiving piece along the rail guide direction and has a rotation range of 90 degrees from the guide direction to one side of the front or back side, while the intermediate joint piece has a receiving piece along the rail guide direction on both sides of the front side or above. A folding door connecting device characterized by having a rotation range opposite to that of the left and right joint pieces.