JP2521777Y2 - 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 in which a net is expanded and contracted in an accordion style.

[0002]

2. Description of the Related Art In a screen door which can be opened and closed by accordion type net, unlike a roll type screen door, the position of an opening / closing operation frame at the end of the net is not restricted by the net itself, and the net can be freely opened and closed. Since the operation frame can take a free position due to various deformations, if an automatic opening mechanism using a spring or the like as a drive source is provided to facilitate opening of the net, the friction force acting on both ends of the operation frame is reduced. Difference, due to the imbalance of the spring force acting on the operation frame, the operation frame does not translate stably, and as a result, it is necessary to translate the operation frame accurately by hand.
There is no point in providing the automatic opening mechanism.

[0003]

The technical problem of the present invention is that the accordion net can be automatically opened with a spring by using the above-mentioned screen door, which has a simple structure for obtaining a stable parallel movement of the operation frame. Obtain a moving mechanism.

[0004]

In order to solve the above-mentioned problems, a folding screen door according to the present invention is provided with a plurality of pleats so that one end of a net which can be expanded and contracted in an accordion style is connected to one side of a screen door frame. Fix to the storage case that composes,
In an operation frame for opening and closing operation attached to the other end of the net, one end of a tension cord is attached to each end of the operation frame, and the tension cords are attached to both ends of the operation frame at the closed position of the net. After being wound around a pulley installed on the screen frame in a facing manner, the cord is folded and wound around pulleys provided at both ends of the storage case. Wrap it around a pulley provided on the end side, fix the tip of the tension cord to the operation frame, provide a winding roller with a spring as a driving source in the storage case, and wind the operation cord around the winding roller. The net is urged in the opening direction by fixing the tip of the string to the operation frame.

[0005]

[Function] The folding screen door is opened and closed by expanding and contracting the net in an accordion style, and the spring is used as a drive source to apply an urging force in the opening direction to the operation frame at the end of the net, so that the opening is automatically performed. Done in
In this automatic opening or manual opening / closing, even if an opening / closing force is applied to one end or any part of the operation frame, the force is transmitted to the other end of the operation frame through the tension cord, that is, the operation is performed. Since the position of the frame is restrained by the simple tensioning of the strap, the force acting on the entire operation frame is substantially equal, and the operation frame is accurately translated in parallel to achieve stable automatic or automatic operation. Manual opening and closing operations can be performed.

[0006]

1 to 3 show an embodiment in which the foldable screen of the present invention is applied to a horizontally opening insect screen to be attached to an opening of a building. The insect screen door frame 1 shown in FIG. 1 is used by attaching it to an existing aluminum sash or by directly attaching it to the opening of a building. A net 2 that expands and contracts in an accordion style on a rectangular screen frame 1 can be opened and closed. Attached to.

[0007] The screen frame 1 includes a storage case 4 having a storage portion 5 for the net 2, an upper frame 6 and a lower frame 8 attached to both ends of the storage case 4, and an upper frame 6 and a lower frame 8. A frame receiver 9 attached to the other end and located on the opposite side of the storage case 4; and these are connected by screws. Further, the net 2 is formed by applying a large number of pleats in a zigzag shape so that the net 2 can be expanded and contracted in an accordion manner. An operation frame 10 for opening / closing operation is attached to the tip of the net 2 and fixed to the inner bottom.

The operation frame 10 guides the upper frame 6 and the lower frame 8 of the screen door frame 1 to slide the upper and lower ends thereof, and a runner 12 is rotatably attached to the lower end of the operation frame 10. Is mounted on the lower frame 8 so as to freely roll. The operation frame 10 is opened automatically by an automatic opening mechanism using a spring described later as a driving source, or can be opened and closed manually. Is provided with a locking hook 13, and a latch 14 for engaging and disengaging the hook 13 is provided on the operation frame so as to be able to be engaged and disengaged.

As shown in FIG. 2, the groove-shaped net accommodating portion 5 of the storage case 4 is in contact with a groove-shaped lid 11 provided on the operation frame 10 on the side facing the accommodation portion 5. When the net 2 is opened by the operation of the operation frame 10, the operation frame 10 covers the housing portion 5 when the net 2 is opened by the operation of the operation frame 10. So that the net 2 is completely stored in the storage case 4.

In order to form a parallel movement mechanism for obtaining an accurate parallel movement of the operation frame 10 attached to the net 2, as shown clearly in FIG. One end of each of 20a, 20b is attached, and these tension cords 20a, 20b are respectively wound around pulleys 21a, 21b installed on the screen frame 1 so as to face the upper and lower ends of the operation frame 10 at the closed position of the net 2, respectively. Tensile cord 20 folded from those pulleys 21a, 21b
a and 20b pass through the upper frame 6 and the lower frame 8, respectively, are guided to the storage case 4 side, and are wound around pulleys 22a and 22b provided at both upper and lower ends of the storage case 4, respectively.

Further, tension cords 20a, 20a from pulleys 22a, 22b at both upper and lower ends of the storage case 4 are provided.
b is wound around pulleys 23a and 23b provided on the other end side of the storage case 4, respectively. That is, the tension cord 2 wound around the pulley 22a at the upper end of the storage case 4
0a is a pulley 23a provided on the lower end side of the storage case 4.
And pulley 22 at the lower end of the storage case.
The tension string 20b wound around b is wound around a pulley 23b provided on the upper end side of the storage case.

Then, the tension cords 20a, 20b wound around the pulleys 23a, 23b are guided along the net 2 in parallel with the upper frame 6 and the lower frame 8 to the operation frame 10, and the tip thereof is And is fixed to the operation frame 10 at a position facing the pulleys 23a and 23b. When the tension cords 20a and 20b are guided along the net 2 to the operation frame 10, the tension cords 20a and 20b are inserted into the net 2 so as to pass through the center of each bent piece sandwiched between pleats in the net 2. It is desirable to prevent loosening of the net 2 and stabilize the stretched state of the net 2.

On the other hand, operating cords 30a and 30b are inserted through the bent pieces sandwiched between the pleats in the upper and lower portions of the center of the net 2, and the ends of the operating cords 30a and 30b are connected to the operating frame. It is fixed to 10. The storage case 4 has operation strings 30a, 30
b. Pulley 3
3a and 33b are provided, and a winding roller 31 driven by a spring 32 is provided. The base ends of the operation cords 30a and 30b are wound around the winding roller 31, respectively.

Therefore, the operation frame 10 is always urged in the opening direction (folding direction) by the urging force of the spring via the operation cords 30a and 30b. And
When the net 2 is pulled out of the storage case 4 at the operation frame 10,
When energy is accumulated in the spring 32 of the winding roller 31 via the operation cords 30a and 30b and the net 2 is opened, the net 2 is automatically transmitted via the operation cords 30a and 30b by the energy accumulated in the spring. Will be folded.

When opening or closing the net 2 by manually operating an arbitrary position, for example, near the upper end of the operation frame 10 at the time of opening or closing manually by the automatic opening mechanism or the manual operation using the spring as a drive source, the upper end of the operation frame 10 The force applied to the part
It is transmitted to the other end side of the operation frame 10 via the tension cords 20a and 20b. That is, the attitude of the operation frame 10 is restrained by the simple installation of the string. Therefore, operation frame 1
0 is equivalent to manually operating both end sides, and the operation frame 10
Can be accurately translated, and the opening and closing operation can be stably performed.

[0016]

As described in detail above, according to the folding screen door of the present invention, it is possible to obtain a stable parallel movement of the operation frame in the screen screen in which the accordion type net can be automatically opened by a spring. A translation mechanism having a simple configuration can be obtained.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view showing one embodiment of a folding screen door according to the present invention.

FIG. 2 is a cutaway plan view of the same part.

FIG. 3 is a side sectional view of the same.

[Explanation of symbols]

 1 screen frame, 2 net, 4 storage case, 10 operation frame 20a, 20b tension cord, 21a, 21b pulley, 22a, 22b pulley, 23a, 23b pulley, 30a, 30b operation cord, 31 winding roller, 32 spring.

Claims (1)

(57) [Scope of request for utility model registration] An end of a net, which is made to be stretchable in an accordion type by applying a large number of pleats, is fixed to a storage case constituting one side of a screen door frame, and an opening and closing operation is performed on the other end of the net. In the one with a frame attached, attach one end of a tension cord to each end of the operation frame,
After the tension cords are wound around pulleys installed on the screen frame in opposition to both ends of the operation frame at the closed position of the net, the tension cords are turned back to pulleys provided at both ends of the storage case. Wrapping, further, from each pulley at both ends of the storage case, wrap it around a pulley provided at the other end side of the storage case, fix the tip of the tension cord to the operation frame, and use a spring as a drive source in the storage case. A wind-up roller, and winding the operation string around the wind-up roller and fixing the tip of the string to the operation frame, thereby urging the net in the opening direction. .