JPS59118115A - Pleat 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 in which a screen sheet made of paper, cloth, synthetic resin or the like is provided with a large number of folds so that it can be folded and unfolded.

Generally, when this type of screen is expanded vertically,
The opening of each fold is not constant; in other words, due to the weight of the sheet, the higher the fold, the wider the fold, and the lower the fold, the smaller the fold, which spoils the overall beauty of the screen. Another drawback was that the upper folds were weak against wind pressure and easily bent.

Therefore, various proposals have been made in the past in order to eliminate this defect, but the present invention is an improvement on this, and has a simple structure that maintains the opening of each fold at a constant level when the screen is unfolded. We aim to provide a pleated clean that is attractive, beautiful, and has good pressure resistance.
- Hereinafter, an embodiment embodying the present invention will be described based on the drawings.

First, in Figures 1 to 3, a screen sheet 8 made of paper, cloth, synthetic resin, etc. is placed between the upper and lower frames 1°2.
is installed. A large number of folds 4 extending in the transverse direction are formed in the upper and lower sides of the sheet 8, and small holes 5 are formed in both sides of each of these folds 40. A lift string 8 is inserted through the small hole 5, and has one end fixed to the lower frame 2 and the other end connected to the upper frame 1 and the operating string 7 via the stopper device 6.

As shown in FIG. 2, an L-shaped notch 9 is formed in each fold 4 on the inside side of the small hole 6, and each notch 9 has upper and lower frames 1 at both ends. , 2 are inserted through the two tapes 10°11 fixed to them.

One of the two tapes 10 and 11 is a pitch control tape for regulating the opening of each fold 4 to a constant size, as shown in FIG. , are inserted along the inner surface of each fold 4 while maintaining a constant interval 1 on the back side of the sheet 8, and are fixed to the inner surface.

On the other hand, the other tape 11 is an auxiliary tape that supports the tape 10 and restricts the opening of the inner surface of each of the folds 4. The pleats 4 are inserted through the pleats 4 in the longitudinal direction, and their overlapping parts are fixed to each other.

Now, in the thus constructed free-flowing screen, when the stop function of the stopper device 6 is released in the folded state, the lower frame 2 will be lowered by its own weight.

In parallel with the lowering of the lower frame 2, each fold 4 opens sequentially from above due to its restoring force and its own weight.
Since the tape 10 that maintains a constant interval 1 and the tape 11 that supports and fixes the tape 10 are inserted and fixed on the back side, each fold 4 is regulated to have a constant opening.

Moreover, each of these folds 4 has a tape length of 10°11.
Therefore, the weight of the entire sheet 8 is not concentrated on the folding folds 4 located above.

In this way, each folding pleat 4 also exhibits a strong pressure-resistant function as the lower frame 2 descends.

Next, another embodiment of the present invention will be described. First, the embodiment shown in FIG. The configuration is different.

That is, in this embodiment, the tape 10 is fixed along the outer surface of each fold 4 while maintaining a predetermined interval 1 between each fold 4. Compared to the above embodiment in which the groove is inserted between the folds 4 and fixed to the inner surface thereof, the groove structure is simple and its manufacture is relatively easy.

Next, in the embodiment shown in FIGS. 5 to 7, the overall structure of the screen is almost the same as that of the first embodiment, but the tape 12 has locking pieces 13 formed at regular intervals. , whereby the opening of each fold 4 is kept constant.

That is, as clearly shown in FIG. 6 or 7, the tape 12 placed on both sides of the back surface of the sheet 3 is provided with U-shaped notches at regular intervals l, and the notches are bent. Each locking piece 13 formed by folding is fixed at each folding date.

With this structure, the opening of each fold 4 is regulated, and since each fold 4 is supported by the tape 12, the opening is maintained constant without being affected by the weight of the sheet 8. Become.

However, as in the embodiment shown in FIG. 8, the tape 12 may be inserted between the respective folds 4 and the locking pieces 18 thereof may be fixed to predetermined respective folds 4.

In addition, although all of the embodiments described above are pleated screens that are folded in the vertical direction, the present invention is not limited to this, and the present invention can also be applied to pleated screens that are folded in the horizontal direction, for example. It is.

As described in detail above, the pleated screen according to the present invention has a screen sheet formed with a large number of folds,
By fixing the tape that regulates the opening of the diffraction 9 folds, the opening of each fold is kept constant, the appearance is beautiful, and good pressure resistance can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the pleated screen according to the present invention, Fig. 2 is a partially enlarged view thereof, Fig. 3 is an enlarged end view of the main part thereof, and Fig. 4 is a main part showing another embodiment. 5 is a rear perspective view showing another embodiment, FIG. 6 is a partially enlarged view thereof, FIG. 7 is an enlarged end view of the main part thereof, and FIG. 8 is a main part showing another embodiment. FIG. 8...Screen sheet 4...Fold folds 10...
・Tape 11...Tape 12...Tape
13...Latching piece patent applicant Dowa Paper Co., Ltd. Agent Patent attorney @ Hikaru Se
Tsukasa 1st figure, 2nd figure, 5th figure, 6th figure! , 7 Figure 8 Procedural amendment (voluntary) February 1, 1980 Commissioner of the Japan Patent Office Kazuo Wakasugi 1 Indication of the case 1986 Patent Application No. 204788 3, Person making the amendment Relationship with the case Patent applicant 4. Agent 〒500 6 Number of inventions increased by amendment None. In both of the embodiments described above, a notch 9 is formed in each fold 4, but instead of the notch 9, for example, an elongated hole is formed transparently, and the tape 10 is inserted into this hole. and 11, or only 11 may be inserted.''73

Claims (1)

[Claims] 1. A screen sheet (8) on which a large number of folded folds (4) are formed, and a tape (
10) A pleated screen characterized by fixing (12). 2. The tape (10) is supported by a tape (11) that passes longitudinally between each fold (4), and while maintaining a constant interval C1) on the back surface of the sheet (8), Pleated screen according to claim 1, characterized in that it is fixed to the pleats (4). 3 Chee '7' (12) is a locking piece (12) formed by bending and raising notches provided at regular intervals (11>).
8) A pleated screen according to claim 1, characterized in that the pleats (4) are fixed to each fold.