JP2006037609A - Folding doors - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide folding doors comprising parent folding doors and slaved folding doors mutually connected together in a foldable manner with a joint thereby permitting the parent folding doors to be individually opened in an emergency. <P>SOLUTION: A turning plate 11 is installed in a turnable manner to an upper end of the parent folding doors 1; a shaft 10 erected and placed on the upper end of the parent folding doors is supported at one end of the turning plate 11; a linking pin 13 energized upward with an elastic force is engaged to a linking groove 15 at the tip of the turning plate; an upper end of the shaft 10 is fitted to a hole formed in a slider 8; the linking pin 13 is disengaged from the linking groove 15 and turning plate 11 is rotated; and the shaft 10 is pulled out from a slider 8 thereby permitting the parent folding doors to rotate independently. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a folding door that can be opened and closed by connecting a parent door and a child door, and can be opened by folding the parent door in an emergency.

  FIG. 9 shows a conventional opening / closing operation of a common folding door. The folding door includes a parent door (A) and a child door (B), and a joint such as a hinge is provided between them so that they can be folded together. . The child door (b) is rotatably attached to the shaft (c) provided on the suspension side, and the slider provided at the upper end of the parent door (b) can move along the upper rail. Therefore, it can be opened and closed with a locus as shown in FIG.

  The folding door that is attached to the doorway and opens and closes is easier to open and close than the hinged door. In particular, when the width of the entrance / exit is large, if the hinged door is attached, when the handle is opened and closed by holding the tip of the hinged door, the rotation radius around the axis of the suspension source becomes large and the operation is difficult. On the other hand, if it is a folding door, since it is a movement along an upper rail as shown in the figure, operation will become comparatively easy.

  By the way, although the use of the folding door is not limited, it is often used as an entrance door of a toilet. As described above, the folding door is convenient for opening and closing operations, and since the opening when folded is large, it is particularly convenient for a physically handicapped person in a wheelchair. Folding doors are usually locked inside the toilet and cannot be opened from the outside. It is not meaningful to be able to open the door freely from outside, but it does not make sense for the locking device, but it can be unlocked from outside. An emergency release means that can be opened is provided.

  However, when the folding door is locked and enters the toilet, the physical condition becomes worse, and when it falls down facing the inside of the folding door, it is released using an emergency unlocking means. But I can't open the folding door. That is, as shown in FIG. 9, the folding door cannot be folded by being extended inward. Even when such an emergency occurs, a folding door device that can rotate and open the parent door (A) outward is desired.

  Japanese Patent Laid-Open No. 2001-323717 discloses a “door emergency opening tool and an opening / closing door provided with the same” so that the door can be quickly opened in an emergency. However, this door can be opened and closed by rotating a large door that fits in the doorway. The door is supported by a swinging support arm, and an upper rail is attached to the upper end of the door. The guide roller which runs is attached with the protruding state.

Therefore, although the guide roller can be detached from the upper rail in an emergency, the large door can be turned around the shaft at the tip of the support arm by removing the guide roller from the upper rail. That is, the frontage can be opened by rotating as shown in FIG. However, as is apparent from the figure, most of the doors protrude outward and turn, but about 1/3 of the doors turn inward. Therefore, when a person falls to this place or a wheelchair is located, the door cannot be opened even if the guide roller is detached from the upper rail.
"Door emergency opening tool and open / close door provided with the same" according to Japanese Patent Application Laid-Open No. 2001-323717

  Thus, the conventional folding door apparatus has the above problems. The problems to be solved by the present invention are these problems. When an emergency occurs, a folding door device is provided that can open the parent door of the folding door from the outside.

  The folding door device of the present invention comprises a parent door and a child door, the child door is attached to the suspension side via a joint, and the parent door is foldably connected to the child door via the joint. That is, the basic structure as a folding door is the same as before. A slider protrudes upward from the upper end of the parent door, and this slider is slidably fitted to the upper rail above the frontage.

  Therefore, the parent door moves while rotating along the upper rail, and the child door is folded by rotating around the suspension joint. Here, a suspension vehicle traveling on the upper rail may be attached as the slider, but since the door stop is attached to the child door, it is projected inward and folded. By the way, in the present invention, the slider is structured to be separable from the parent door. In addition, the slider itself is structured so as to be detached from the upper rail. Therefore, in any case, the parent door can be rotated around the joint with the child door, and the parent door projects outwardly and is folded.

  The folding door of the present invention has a structure in which the parent door can be folded alone. That is, since the structure is separable from the slider attached to the upper end of the parent door, the parent door is folded independently from the upper rail. Moreover, there is no part that protrudes inward in the folding operation of the parent door, and even if a person falls down facing the inside of the folding door, it quickly helps because there is no obstacle accompanying the rotation of the parent door It becomes possible.

  FIG. 1 is a plan view of a folding door apparatus according to the present invention. FIG. 1A shows a case where the folding door is folded and opened, and FIG. 1B shows a case where the folding door is extended and the front door is closed. In the figure, 1 is a parent door, 2 is a child door, the parent door 1 and the child door 2 are connected so as to be foldable via a joint 3, and the child door 2 is a frame body fitted in a frontage (entrance). It is supported by a shaft 4 provided on the vertical beam 5. Handles 6 and 6 for opening and closing operations are attached to the front end side and the joint side of the parent door 1, and a lock knob 7 is provided inside the parent door 1.

  Therefore, as shown in (b), when the lock knob 7 is extended, it can be locked and cannot be opened from the outside. However, a small slot for rotating the lock knob 7 is provided on the front side of the parent door 1. Therefore, when the tool is inserted into the slot and rotated, the lock knob 7 is rotated and the lock is released. In this way, when an abnormal situation occurs, the lock is released from the outside.

  However, in order to release the lock and open the folding door, it is necessary to extend the main door (A) and the child door (B) inward as shown in FIG. If it is, the folding door cannot be folded and opened even if the lock is released from the outside. Therefore, in the present invention, as shown in FIG. 2, the main door 1 is configured to be capable of being turned and folded independently. In this case, since the door 22 is attached to the child door 2, it cannot be extended outward and opened, and the parent door 1 is restrained by the upper rail via a slider. It is impossible to perform the folding operation shown in the figure.

  FIG. 2 shows a case where the parent door 1 of the folding door according to the present invention is opened. In this way, the parent door 1 can be opened by turning outward rather than inside, and even when a person falls on a folding door, the parent door 1 can be opened and helped. By the way, in order to turn the main door 1 outward, it is necessary to separate it from the upper rail. In the present invention, the main door 1 is separated from the slider, or the slider is removed from the upper rail. .

  FIG. 3 shows a connection structure between the parent door 1 and the slider 8. The slider 8 is loosely fitted to the upper rail 9 and can move along the upper rail 9, and is connected to the parent door 1 via the shaft 10. However, the shaft 10 is not fixed to the parent door 1 and the slider 8, and the shaft 10 erected at the upper end of the parent door is fitted in a hole formed at the center of the slider 8. Therefore, the shaft 10 can be extracted from the hole of the slider 8.

  A rotating plate 11 is attached to the upper end of the main door with a shaft screw 12, and an engaging pin 13 is engaged with one end of the rotating plate 11. Therefore, the rotating plate 11 is fixed without rotating around the shaft screw 12. Has been. The parent door 1 rotates about the shaft 10, moves with the slide of the slider 8, and is folded. Incidentally, the engaging pin 13 is pushed upward by the coil spring 14 to be engaged with the tip engaging groove 15 of the rotating plate 11, but the engaging pin 13 is pushed down. Then, the engaging pin 13 can be detached from the engaging groove 15 of the rotating plate 11.

  As shown in FIG. 4, the upper end of the folding door is shown in FIG. 4A, in which the rotating plate 11 is fixed to the upper end of the parent door. However, if the engaging pin 13 is pushed down, it will come off from the engaging groove 15 at the tip of the rotating plate, and if the main door 1 is pulled forward in this state, the main door 1 is slightly inclined as shown in FIG. Although the slider 8 cannot be moved because it is fitted and restrained on the upper rail 9, the rotary plate 11 rotates around the shaft screw 12 by pulling the parent door 1 toward you.

  Thus, if the rotating plate 11 rotates, the shaft 10 standing from the upper end of the parent door will fall out of the hole of the slider 8. As shown in FIG. 5, when the rotating plate 11 rotates, the rotating plate 11 is in a position crossed with respect to the parent door 1, and the shaft 10 protrudes from the parent door 1. Therefore, the shaft 10 falls out of the rotating plate 11 and the slider 8. FIG. 6 shows a case where the shaft 10 falls off.

  Thus, if the shaft 10 falls off the slider 8, the parent door 1 is separated from the slider 8, and as a result, the parent door 1 freely rotates around the joint 3 as shown in FIG. Can be opened.

  FIG. 7 is another specific example showing a connection structure between the parent door 1 and the slider 8. The slider 8 is loosely fitted to the upper rail 9 and can move along the upper rail 9, and is connected to the parent door 1 via the shaft 16. However, the shaft 16 is not fixed to the parent door 1 and the slider 8, and the shaft 16 erected at the upper end of the parent door is fitted in a hole formed at the center of the slider 8. However, since the shaft 16 is fixed to the plate 17, it cannot be removed as in the case of the above embodiment.

  The plate 17 is placed on the upper end of the main door and fixed with two screws 18 and 18. If the screws 18 are loosened, the plate 17 can be separated from the parent door 1, and the parent door 1 is separated from the slider 8. Therefore, the parent door 1 can be pulled forward, and can be rotated and folded as shown in FIG.

  FIG. 8 shows still another embodiment. The shaft 20 is attached to the parent door 1 and stands vertically. A slider 19 is rotatably attached to the upper end of the shaft 20. The shaft 20 is supported by a coil spring 21 so as not to fall, and the slider 10 is loosely fitted to the upper rail 9. Therefore, if the slider 19 is pushed down, the slider 19 is detached from the upper rail 9, and in this state, the parent door 1 can be pulled forward, and can be rotated and opened as shown in FIG.

It is a top view of the folding door apparatus of this invention, (a) is a case where a folding door is folded, (b) is a case where a folding door is extended | stretched. When opening the parent door of the folding door alone. Connecting structure of parent door and slider. When removing the engagement pin from the engagement groove of the rotating plate to open the parent door. When the rotating plate rotates. When removing the shaft from the slider. Connecting structure of parent door and slider. Connecting structure of parent door and slider. Opening and closing the folding door.

Explanation of symbols

1 parent door 2 child door 3 joint 4 shaft 5 vertical rail 6 handle 7 lock knob 8 slider 9 upper rail
10 axes
11 Rotating plate
12 shaft screw
13 Engagement pin
14 Coil spring
15 Engagement groove
16 axes
17 plates
18 screws
19 Slider
20 axes
21 Coil spring

Claims (5)

The parent door and child door are connected to each other via a joint so that they can be folded together. The child door is pivotally supported on the vertical rail side of the frame body, and a slider that slides loosely on the upper rail at the upper part of the front door A folding door device that attaches to and opens and closes, and has a structure in which a shaft for connecting the slider and the parent door can be removed. A rotating plate is rotatably attached to the upper end of the main door, and a shaft placed on the upper end of the parent door is supported at one end of the rotating plate, and an elastic force is applied upward to the rotating plate tip engagement groove. The biased engagement pin was engaged, the upper end of the shaft was fitted into the hole formed in the slider, the engagement pin was removed from the engagement groove, and the rotating plate was rotated to extract the shaft from the slider. The folding door device according to claim 1. The parent door and child door are connected to each other via a joint so that they can be folded together. The child door is pivotally supported on the vertical rail side of the frame body, and a slider that slides loosely on the upper rail at the upper part of the front door A folding door device that attaches to and opens and closes, and has a structure in which a shaft for connecting the slider and the parent door is separable from the parent door. 4. The folding door device according to claim 3, wherein a plate with an erecting shaft connected to the slider is attached to an upper end of the main door, and the shaft can be separated from the main door by removing the plate. The parent door and child door are connected to each other via a joint so that they can be folded together. A folding door device that is attached to a shaft that protrudes upward and opens and closes. A folding door device characterized in that a spring is attached to the shaft and the slider can be detached from the upper rail by being pushed down.

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