JP2781832B2 - Folding screen - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding screen door which can be opened and closed by expanding and contracting a net in an accordion style.

[0002]

2. Description of the Related Art In a horizontally-opening screen door in which a plurality of pleats are applied to make a net which can be expanded and contracted in an accordion manner openably and closably mounted on a screen door frame, operation frames for opening and closing operations are respectively provided on left and right ends of the net. The ones that can be detachably attached to the left and right side frames of the screen frame, and those that have a parallel movement mechanism attached to the operation frame so that the operation frame can always be translated in parallel,
The present inventors have previously proposed this as Japanese Utility Model Application No. 05-063643. This proposed screen door can open and close the net in a folding screen door that opens and closes in an accordion style from either the left or right side, so whether to open or close the left or right operation frame according to the situation at that time This is advantageous in that it can be appropriately selected.

On the other hand, when the operation frame is automatically moved in the direction of storing the net in order to store the net from the stretched state, the urging force of a weight or a spring acts on the operation frame. However, if this is applied to a screen door that can be opened and closed from the left and right, it is necessary to individually apply the biasing force of a weight or a spring to each operation frame, which is expensive as a whole. It becomes.

[0004]

SUMMARY OF THE INVENTION The technical problem of the present invention is to provide a foldable screen that opens and closes by expanding and contracting the net in an accordion manner so that the net can be opened and closed from either the left or right side. An object of the present invention is to provide a simplified and inexpensive configuration for automatically moving both operation frames in the storage direction.

[0005]

According to the present invention, there is provided, in accordance with the present invention, an accordion-type expandable and contractable net attached to a screen frame by applying a plurality of pleats, and expanding and contracting the net. In the horizontal opening type door that can be opened and closed freely, operation frames for opening and closing operations are attached to the left and right ends of the net, respectively, and these operation frames can be freely disengaged from the left and right side frames of the screen door frame, respectively. A folding screen door is provided in which a tension device is interposed between the frames via tension cords to bias the operation frames toward each other.

[0006]

With the above construction, the net can be opened and closed from either the left or right side by moving one of the operation frames to the left or right. It can be selected appropriately according to the situation at that time, but when operating any of the operation frames, when trying to store the net, the common tension device is operated and the operation frame is moved by the urging force. Can be automatically moved to the storage position.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment shown in FIGS. 1 and 2 shows a case where the folding screen door of the present invention is constructed as a horizontally opening screen door which can be attached to an existing sash at the opening of a building. A net 2 having operation frames 3a and 3b for opening and closing operations attached to both left and right ends is stretched openably and closably in a screen door frame 1 which forms a frame. The screen frame 1 is formed by connecting the upper frame member 1a and the lower frame member 1b and the left and right side frame members 1c and 1d to each other with screws, and is fixed to a sash in a building opening by an appropriate means. Things.

The net 2 is constructed so as to be stretchable in an accordion manner by applying a large number of pleats in a zigzag shape. The net 2 is arranged so as to expand and contract in the left-right direction by turning the pleats vertically. The end is a screen door 1
The upper frame member 1a and the lower frame member 1b are respectively fitted into the concave portions of the net 2, and the two operation frames 3a, 3b attached to the left and right end portions of the net 2 are selectively operated, so that the left or right side can be used. Is also configured to be able to open and close.

The operation frames 3a and 3b have wheels 5 at their upper ends, and the upper frame member 1a has rails 6 on which the wheels 5 run when the net 2 is opened and closed. In addition, a concave groove-shaped net accommodating portion is formed on the mounting surface of the net 2 in each of the operation frames 3a and 3b. The folded net 2 is completely housed between these net housings. When one of the operation frames 3a and 3b is opened and closed, the other needs to be fixedly held at a closed position.
The hooks 7c and 7d are provided on the side members 1a and 3b so that the hooks 7c and 7d can be freely disengaged from the side frame members 1c and 1d. As the hook, a locking means such as a magnet can be used.

A tension cord 8 is provided between the operation frames 3a and 3b.
And a tension device that urges both operation frames 3a and 3b in the approaching direction via the control frame. In the embodiment of FIG. 1, this tension device fixes one end of a tension cord 8 on the upper part of one operation frame 3a, and wraps the tension string 8 around a deflection element 9 provided on the upper part of the other operation frame 3b. The weight 10 is attached to the lower end of the body. Instead of the weight 10, a spring that applies a force in the same direction to the tension cord 8 can be used.

With this configuration, the net 2 can be opened and closed from either the left or right side by moving one of the operation frames 3a, 3b to the left or right. Even when operating, when trying to store the net, a common single weight 1
By operating the urging force of 0, the operation frame can be automatically moved to the storage position of the net. Therefore, the configuration for automatically moving both operation frames in the storage direction can be simplified and provided at low cost.

In order to prevent the operation frames 3a and 3b from being tilted when the net 2 is opened and closed, the opening and closing operations are not smoothed. A parallel movement mechanism is provided to hold the frames 3a and 3b vertically and to move them in parallel. This parallel moving mechanism is based on the premise that the tension device is provided, and attaches the tension cord 11 having one end fixed to the upper end of one side frame member 1c.
A similar diverter 1 provided at the lower and upper ends of the other operation frame 3b is wound around pulleys 12a and 12b such as pulleys and fixed guides provided at the upper and lower ends of the operation frame 3a.
3b and 13a, and then fixed to the upper end of the other side frame member 1d.

According to the above-mentioned parallel moving mechanism, both operation frames 3
The movement in the direction in which the upper portions of the a and 3b are inclined inward to each other is restrained by the tension cord 11, and both operation frames 3a and 3b are moved.
Since the movement in the direction in which the upper part of b is tilted outward is restricted by the tension device, as a result, both operation frames 3a, 3b
Will move in parallel while maintaining the vertical state, whereby the net 2 can be stably opened and closed.

FIG. 3 schematically shows another embodiment in which the tension device is different. In this embodiment, the tension device provided between the operation frames 3a and 3b is replaced with the operation frame 3a. ,
A tension cord 18 is wrapped around deflection elements 19a and 19b provided on the upper part of 3b, and both ends of the tension string 18 are connected to the deflection elements 19a and 19b.
b are suspended from both sides, and their lower ends are fixed to the lower portions of the operation frames 3a and 3b, respectively, with one ends fixed to springs 20a and 20b.
Of the spring 20
a, 20b, both operation frames 3a, 3b
Is biased in the approaching direction. The springs 20a, 2
Instead of 0b, it is also possible to use a weight that gives the tension to the tension cord 8 in the same direction.

With this configuration, the operation frames 3a, 3b
In any case, when the net 2 is to be stored, the urging force of both springs 20a and 20b can be applied to automatically move the operation frame to the net storage position. Therefore, as compared with the embodiment of FIG. 1, not only can the structure of both operation frames be shared, but also the stroke range in which the urging force can be applied to the operation frames 3a and 3b is doubled as compared with the embodiment of FIG. be able to. That is,
When the weight 10 is connected to one end of the tension cord 8 as in the embodiment of FIG. 1, the weight can only be moved up and down within the length of the operation frame. Although the strokes of the operation frames 3a and 3b that can apply the urging force are limited, when the weight is connected to both ends of the tension cord 18 by being configured as in the embodiment of FIG. 3, the stroke is doubled. be able to.

In the case where springs and weights are connected to both ends of the tension cord 18, it is not necessary to make the spring forces and the weights of the springs equal to each other. Thus, the magnitude of the urging force acting on the operation frame can be adjusted at the start and end sides of the stroke. Since other configurations and operations in FIG. 3 are substantially the same as those in the embodiment of FIG. 1, the same or corresponding portions in the drawing are denoted by the same reference numerals and description thereof is omitted.

[0017]

As described in detail above, according to the folding screen door of the present invention, operation frames for opening and closing operations are attached to both left and right ends of the net, respectively, and the net can be opened and closed from either side. In this configuration, the structure for automatically moving both operation frames in the storage direction can be simplified, and the screen door can be provided at a low cost.

[Brief description of the drawings]

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

FIG. 2 is a side sectional view of the same.

FIG. 3 is a front view schematically showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Screen frame 2 Net 3a, 3b Operation frame 8, 18 Tension cord 10 Weight 20a, 20b Spring

Claims (1)

(57) [Claims] 1. A horizontally opening screen door which can be opened and closed by attaching a net which can be expanded and contracted in an accordion type by applying a large number of pleats to the screen door frame and expanding and contracting the net. The operation frames for opening and closing operation are attached to each part, and these operation frames can be detachably attached to the left and right side frames of the screen frame, respectively, in the direction approaching both operation frames via a tension cord between both operation frames. A foldable screen door interposed with a tensioning device for urging.