JPS5985613A - Pleated screen - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pleated screen that can be folded and unfolded by providing a screen sheet made of paper or cloth with a large number of folds. The opening of each fold during unfolding is not constant; that is, due to the influence of the screen sheet's own weight, the folds located at the top have a larger opening and the lower ones have a smaller opening, which affects the overall aesthetic appearance of the screen. It was damaged.

Conventionally, for example, a tape-like material was placed on the back side of the screen sheet, and the tape was fixed at predetermined intervals by adhesive or other means, or tape or string was inserted between each fold or fold. For example, locking devices that support the folds of the screen sheet are attached at predetermined intervals from the back side 1 of the screen sheet to maintain a constant opening of each fold when the screen is unfolded.

However, according to this conventional example, manufacturing is not necessarily easy and takes time and effort, and it is necessary to prepare special locking tools, resulting in high cost.Furthermore, the screen itself is not aesthetically pleasing. was not always good.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional defects, the present invention aims to provide a beautiful pleated sleeve that is easy to manufacture, has a simple structure, and can maintain the opening of each fold at a constant level.

Hereinafter, one embodiment embodying the present invention will be described based on the drawings.

First, in Figures 1 to 4, between the upper and lower frames 1.2,
Two Nucli-y sheets of the same width made of cloth or paper (including synthetic paper) with appropriate rigidity, i.e.
The first screen sheet 8 and the second screen sheet 4 located on the back side of the first screen sheet 8 are stretched so as to overlap.

However, both sheets 8.4 do not necessarily have to be made of the same material; for example, the first sheet 8 may be made of paper and the second sheet 4 made of cloth, or vice versa.
The combination is arbitrary, and is appropriately selected in consideration of variations in lighting, light blocking, light diffusion, and fashionability.

Both sheets 8.4 are formed with a large number of folds 6, 6 extending in the transverse direction, and can be folded and unfolded freely, but their fold widths are not the same; is formed to be smaller than the folding width of the folded pleats 6.

First, there are two small holes on both sides of each nine fold 5.
In other words, the first small hole 7 located near the ninth fold and the second small hole 8 located near the inner fold are provided in a large and transparent manner. however,
These first and second small holes 7.8 do not necessarily have to have the same diameter, nor do they need to be located equidistant from both ends of the folding fold 6.

On the other hand, on both sides of each fold 6, a third small hole 9 is transparently provided which communicates with the second small hole 8 in the vertical direction when both sheets 8.degree. 4 are folded. However, the second and third small holes 8.9 do not necessarily need to have the same diameter, since it is sufficient to form a communicating portion when the sheet 8.4 is folded.

The elevating strings io and it are inserted into each fold fold 5.6 of the sheet 8.4 through these first to third small holes 7.8 and 9, details of which are shown in FIG. This is shown in the principle diagram.

That is, the shafts 18 are mounted on both sides of the upper frame 1 so as to be perpendicular to the longitudinal direction thereof, and the shafts 18 are mounted on both sides of the lower frame 2 in the same direction as the longitudinal direction. A pulley 14 is mounted on a shaft 18 in the direction.

The lifting cord 10.11 has one end fixed to the upper frame 1, and is inserted into the lower frame 2 by simultaneously passing through the small hole 8 of the first sheet 8 and the small hole 9 of the second sheet 4. being sent out. Then, in the lower frame 2, the feeding direction is changed by passing through the pulley 18, and after that, the sheet is fed back to the upper frame 1 by passing only through the small hole 7 of the first sheet 8. There is.

The lifted and returned lifting strings 10.11 are connected to an external operation string 16 via a pulley 18 inside the upper frame 1 and a stopper device 15 for lifting/lowering control attached to one side of the upper frame 1. has been done.

Now, to describe the operation of the pleated screen according to the present invention configured as described above, first, when the screen is in the folded state and the operating string 16 is pulled, the stop function of the stopper device 15 is released and the bottom frame is closed. 2 gradually descends due to its own weight.

In parallel with the lowering of the lower frame 2, the first and second V-)8.
The folds 5 and 6 of each fold 5 and 4 gradually open from above under the influence of the restoring force of the sections 8 and 4 and their own weight. At this time, the opening of the diffraction 9 folds 6.6 is at both the inner and outer folds; It advances while approaching the IT side, and by the way, as shown in No. 411K (A), the lifting cord 10.11
As long as there is a space through which it passes, that is, a common space S in the vertical direction formed between the second small hole 8 and the third small hole 9, it will progress smoothly.

Then, as the opening of each fold 5.6 further progresses, the common space S disappears and the second and third small holes 8
．． The respective peripheral edge of 9 begins to bear against the lifting cord 10.11. At this time, since the lifting cord 10.11 is always under tension due to the weight of the lower frame 2, a frictional force is generated between the lifting cord 10.11 and the peripheral edge. increase Then, when this Jll direction force and the force υ of each folding fold 6.6 to try to open themselves become large, the further opening of the diffraction fold 6.6 is restrained, as shown in Fig. 4 (B ) will be in a locked state as shown.

In this way, as the lower frame 2 descends, the above-mentioned action is sequentially repeated upward, and each fold 5 of the sheet 8 is held at a constant opening from the upper end to the lower end.

However, the opening height of the folding pleats 5 can be arbitrarily adjusted by changing the following elements ① to θ.

■ Folding width of the folding fold 6 @ Transparent position of the second and third small holes 8.9 ○ Diameter size of the second and third small holes 8, 9, that is, folding width 11 of the folding fold 6 The shorter it is, the closer the transparent positions of the second and third small holes 8.9 are to the inner fold, and the larger the diameters of the second and third small holes 8.9. I see, the opening of each fold 5 is large υ, and vice versa, it is small. Therefore, by appropriately changing the ## element 1, the desired size of opening can be obtained by folding the pleats 6.
can be given to

Then, when the screen pleats are unfolded, pull the m-making string 16 again to lift the bottom frame 2, and the folding pleats 5 located at the bottom will be unlocked in sequence, and the entire screen pleat will be unlocked. It will be folded without difficulty.

In addition, since the pulley 14 installed in the lower frame 2 constitutes a so-called movable pulley, the pulling force required for the folding can be halved.

Next, FIG. 5 shows another embodiment of the present invention,
The difference from the first embodiment is that the folded pleats 6 are sandwiched between S'-)
17, and the holes 17 are arranged parallel to the insertion points of the lifting cords 10 and 11.

In this example as well, the opening of the folded folds 6 can be kept constant as in the first embodiment.

However, in the first embodiment, since an air layer is formed between the first and second sheets, it is possible to improve the heat insulation and soundproofing effects, but in the main dormitory embodiment, such improvements are not possible. I can't wait.

Next, in FIG. 6, bars 18 and 19 are fixed to the lower ends of both sides of the upper frame 1, and the bars 18 and 19 are folded at each fold 6,
This shows an example in which the rods 18 and 19 are inserted through the small holes 8 and 9 of No. 6, and the main difference from the 1st embodiment is that rods 18 and 19 are inserted as insertion members separately from the lifting strings to and ti. The point is that it was used. In addition, in this example, the lifting cord 10.11
is attached so as to pass through the outside of the seat 8.4.

FIG. 7 shows an example in which the present invention is applied to a pleated screen that can be folded in the left and right directions. That is, the first and second sheets 8.4 are provided with a large number of folds 5.6 extending in the longitudinal direction, and the upper and lower sides of the diffraction sheet folds 5.6 are attached to the frame 20. A small hole 8.9 is provided through which the fixed bar 21, 22 is inserted. Instead of the bars 21 and 22, strings, tapes, etc. may be used.

As is clear from this example, the application of the present invention is not limited to pleated screens that are folded in the vertical direction.

In addition, in the above-mentioned embodiments, the width of the folds is kept constant by overlapping two sheets, but the number of folds is not limited to two sheets, and three sheets are overlapped.
A plurality of sheets may be stacked on top of each other.

As is clear from the above description, the pleated screen according to the present invention can maintain the width of each fold at a constant level without adhering tape or the like or attaching special fasteners. The appearance of the screen sheet is not impaired in any way, and since it has a simple structure, it does not require much time and effort to manufacture, and can be provided at low cost.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the pleated screen of the present invention, Fig. 2 is a partial sectional view of each fold, Fig. 3 is a principle diagram of the pleated screen shown in Fig. 1, and Fig. 4 (A) ( B) is an enlarged cross-sectional view of a folded part to explain the locking effect of the folded pleats, FIG. 5 is a partially omitted back view of a pleated screen according to another embodiment of the present invention, and FIGS. 6 and 7. 2A and 2B are perspective views of other embodiments. 8... Screen sheet 4... Sheet 5...
・ In pleat 6... Fold pleat 8... Small hole 9... Small hole Patent applicant Dowa Paper Co., Ltd. Agent Patent attorney Koji Hirose Figure 2 Voluntary procedure amendment document Showa Ta 2 1972 Date of Patent Application No. 195126 2 of 1988, Name of the invention: Pleated Screen 8, Relationship with the person making the amendment Patent applicant Address: 2-5 Matsucho, Kano Village, Gifu City Name: Dowa Paper Co., Ltd. Representative: Sawamura Mori 4, Agent 500 Address 1-2iI, Taiho-cho, Gifu City Miyake Jll Bi The statement in the scope of claims column is amended to the appendix. (b) The description of "Pulley 18" on page 6, line 14 of the specification is changed to "Pulley 14". The description of "Pulley 18" on the first line of page 7 of the book is amended to read "Pulley 12". [2. Claim 1 Screen sheet (8) on which a large number of folds (6) are formed Then, one or more sheets (4, 17) having a large number of folds (6) formed with the same fold (5) with a small fold width (11) are superimposed, and A pleated screen characterized in that a string or other member is simultaneously inserted through the small holes (8) and (9) into each of the folds (5) and (6). 2. The pleated screen according to claim 1, wherein each of the folds (5) and (6) is formed to extend in the lateral direction. 3. The sheet (4) is The pleated screen according to claim 1, characterized in that it has the same width as the sheet (8). 4. The pleated screen according to claim 3, wherein the sheet (4) is made of a different material from the sheet (8). 5. The pleated screen according to claim 1, wherein the strings are lifting strings (10, 11). 6 One end of the lifting cord is fixed to the upper frame (1), and the pulley (14) in the lower frame (2) and the upper frame (1)
6. The pleated screen according to claim 5, wherein the pleated screen is connected to the operating string (16) through a pulley (12) in the inside. ” Procedural amendment ω issued) February 1980 IEI 4') ° Mr. Kazuo Wakasugi, Commissioner of the Japan Patent Office 1 Indication of the case 1981 Patent Application No. 195126 @ 2, Name of the invention ``Relationship with IK Patent applicant residence Toko Dowa Paper Co., Ltd. Name: 4. Agent: 500 6. Number of inventions to be increased by amendment: None The statement in the scope of claims column of Akira Retsusen is amended in the attached circular. Description Page 4, line 8, “Cloth or paper with...
・'' has been changed to ``cloth, synthetic resin, or paper with...''
"..." is corrected. The following statement is added between the third and fourth lines of page 7 of the specification. "The lifting string 10.11 is not necessarily the pulley 12.1.
It is not necessary to guide the guide member 4 by a fixed member having a smooth guide portion, for example, by molding a synthetic resin or the like. ” The following statement is added between lines 3 and 4 on page 10 of the specification. [Also, according to this example, since an air layer is formed between the first and second sheets 8.4, improvements in heat insulation and soundproofing effects can be expected. However, it is not always necessary to arrange the first screen sheet 3 on the front side and the second screen sheet 4 on the back side as in this embodiment. It is also possible to use the clean sheet 4 on the front side and the first screen sheet 8 on the back side. In this case, only the small holes 9 appear on the front side, and the small holes 7.8 are Since they are hidden behind the back side and only one elevating cord 10, 11 appears on each side, aesthetically pleasing results can be obtained. ” on page 10 of the specification, lines 10 to 13 [However, the first
I can't expect much from the example. ” will be deleted. On page 11, line 11 of the specification, the statement [...Instead, use a string, tape, etc.] has been changed to "...Instead, use a string, tape, or even a wire, wire, etc."・” is corrected. 2. Claim 1 A screen sheet (8) on which a large number of folded folds (5) are formed has a large number of folded folds (6) with a folding width smaller than the folding width of the diffraction folding folds (5). (4, 17) A pleated screen characterized by overlapping one or more sheets (4, 17) and passing each of the folds (5) and (2) each of the folds (5). ) and (6) are formed to extend laterally. 3. The pleated screen according to claim 1, wherein the sheet (4) is the same as the sheet (3). The pleated screen according to claim 1, characterized in that the sheet (4) is made of a different material from the sheet (3). Pleated screen according to claim 3. 5. Pleated screen according to claim 1, characterized in that the strings are lifting strings (10, 11). 6. Pleated screen according to claim 1, characterized in that the strings are lifting strings (10, 11). , 11) has one end attached to the upper frame (string (
16) The pleated screen according to claim 5, characterized in that the pleated screen is connected to the side. ”

Claims (1)

[Claims] 1. A screen sheet formed with a large number of folds (5)
(8), one or more sheets (4, 17) on which a large number of folds (6) are formed with a fold rlJ smaller than the fold width of the nine diffraction folds (5), and A pleated screen characterized in that strings or their flats are simultaneously inserted through small holes (8) and (9) into each fold (5) and (6). 2. The pleated screen according to claim 1, wherein each of the folds (5) and (6) is formed to extend in the lateral direction. 3. The pleated screen according to claim 1, wherein the sheet (4) has the same width as the sheet (3). 4. The pleated screen according to claim 3, wherein the sheet (4) is made of a different material from the sheet (3). 5. The pleated screen according to claim 1, wherein the strings are lifting strings (10, 11). 6 One end of the lifting cord is fixed to the upper frame (1), and the pulley (1B) in the lower frame (2) and the upper frame (1)
5. The pleated screen according to claim 5, wherein the pleated screen is connected to the operating string (16) through a pulley (12) in ).