JPS6324784Y2 - - Google Patents

Description

[Detailed description of the invention] The invention consists of attaching the upper end of raw cloth to a winding cylinder which is always given rotational force in one direction by a built-in spring, and attaching a lower plate to the lower end of the raw cloth. This is about the roll screen made up of.

This type of roll screen is used for various purposes, such as attaching it to a window and using it as a blind, or attaching it to the exit or interior of a room to use it as a partition or shield, and when it is not needed, it can be rolled up and rolled into a tube. Wrap it around your body, pull down the cloth when necessary by pulling the lower plate, fix the cloth at the desired lowered position with an appropriate stopper, and when you want to pull up the cloth, release the stopper. The raw cloth is wound onto the winding cylinder by rotating the winding cylinder by the action of a spring built therein.

In such a roll screen, if the raw cloth is not accurately attached to the winding cylinder, the raw cloth will not be accurately wound during winding, resulting in so-called disordered winding. Further, if the winding cylinder is not mounted accurately and horizontally, irregular winding will occur.

However, when manufacturing such a roll screen, it is very difficult to cut the raw cloth and attach the raw cloth to the winding tube body accurately, which causes the raw cloth to be rolled unevenly. . Furthermore, even if the fabric is manufactured to be wound accurately when shipped from the factory, the winding will gradually become irregular during use due to the inclination of the mounting location, the stretching of the raw fabric due to use, etc.

Conventionally, there was no way to reliably prevent such winding disorder, so conventional roll screens have a winding cylinder that is larger than the raw cloth to prevent damage to the raw cloth due to this winding disorder. was. but,
If you use a roll-up cylinder that is larger than a cloth like this, when two or more roll screens are attached to a large window, the gap between the cloths will become large and complete shielding will not be possible. becomes.

The present invention solves the above-mentioned drawbacks of the roll screen, and eliminates the inaccuracy of cutting the raw cloth or attaching the raw cloth to the winding cylinder during factory production, or the inaccuracy of the winding cylinder when installing the winding cylinder. If the winding is disordered due to the body not being installed accurately horizontally, or if the winding is disordered due to the stretch of the raw cloth during use, etc., the disordered winding can be easily adjusted. In order to be able to accurately wind the raw cloth onto the winding cylinder, and to prevent the raw cloth from being damaged due to uneven winding as in the past, a winding cylinder that is larger than the raw cloth is used. The purpose of this project is to provide a roll screen that eliminates the inconvenience caused by this, and its feature is that a cap is attached to one or both ends of the lower plate with a weight that can adjust the weight as appropriate. be.

This will be explained below with reference to the drawings.

FIG. 1 is a partially cutaway front view showing a conventional roll screen. In the figure, 1 is a winding cylinder, 2 is a bracket for attaching the winding cylinder to a window frame, etc., and 3 is a winding cylinder. A coil spring built into the cylinder to always apply rotational force in one direction to the cylinder;
4 is a raw cloth attached to the winding cylinder at the upper end; 5 is a lower plate attached to the lower end of the raw cloth;
6 is an operating string attached to the lower plate. When this roll screen is not needed, the raw cloth 4 is wound around the winding cylinder 1, and when necessary, the raw cloth 4 is pulled down by pulling the operation string 6, and the raw cloth is pulled down to a desired position using a stopper (not shown). Fixed to. When it is desired to pull up the raw cloth, by releasing the stopper, the winding cylinder 1 is rotated by the action of the spring 3, and the raw cloth 4 is wound onto the winding cylinder. However, in the conventional roll screen, for the various reasons mentioned above, the raw cloth 4 is rolled up into the cylindrical body 1.
It is difficult to wind up the cloth accurately, and the winding of raw cloth often shifts from side to side, resulting in disordered winding, as shown at 7.

The present invention provides a means for adjusting such winding irregularities very easily.

2 and 3 show an embodiment of the present invention. In the figure, the same parts as shown in FIG. 1 are indicated by the same reference numerals, and detailed explanation thereof will be omitted. In the illustrated embodiment, the lower plate 5 is formed as a cylindrical member, provided with a horizontal partition 5a in the center, and groove-shaped chambers 5b, 5c formed above and below the partition 5a. A slit is formed at the upper edge of the cylindrical member, and the lower end of the cloth 4 is introduced into the chamber 5b through the slit and fixed therein. The upper end of the tube is introduced into the chamber 5c through the slit and fixed therein. A cap 9 having a weight 8 attached thereto whose weight can be adjusted as appropriate is attached to one or both ends of the lower plate 5. In the illustrated example, the weight 8 is formed into a semi-cylindrical shape that fits snugly into the chamber 5c.

In order to adjust the weight of the weight 8, as shown in FIG.
Alternatively, as shown in FIG. Alternatively, a weight 8c having a desired weight may be attached to the cap 9c, and then this may be attached to the lower plate 5. Further, such a weighted cap may be attached to one end of the lower plate 5, or weights of different weights may be attached to both ends of the lower plate.

For example, as shown in FIG. 1, when the raw cloth 4 is wound up while shifting to the right, a cap 9 to which a weight 8 of an appropriate weight is attached is attached to the right end of the lower plate 5. In this way, when the weight 8 is attached, tension is applied to the right end of the raw cloth 4, and the right side of the raw cloth is wound tightly and the left side is wound loosely, so the winding diameter of the raw cloth is larger on the left side than on the right side, and the raw cloth 4 is wound up while shifting toward the larger diameter side, so it is wound up while shifting toward the left, and the raw cloth is prevented from shifting toward the right. Even after attaching the weights in this way, if the fabric still moves to the right,
Replace the weight 8 with a heavier one to correct the winding irregularity. Also, by attaching weights,
On the other hand, if it starts to shift to the left, the weight is 8.
The unevenness of the fabric can be adjusted by replacing it with a lighter one or by attaching a weighted cap to the left end of the lower plate.

FIG. 5 shows another embodiment of the invention.

In this embodiment, a plurality of weight receivers 11 are formed on the inner surface of a cap 10 attached to the end of the lower plate 5, and an appropriate number of weights 12 are attached to the cap 10.
This cap 10 is shown attached to the end of the lower plate 5. As shown in FIG. 6, the weight receiver 11 is formed to grip a protrusion 13 formed integrally with the weight 12.
An appropriate number of weights 12 are attached to the cap 10 depending on the degree of disorder of winding of the raw cloth. Weight 1 depending on the winding condition after attaching the weight.
The irregular winding can be corrected by increasing or decreasing the number of caps or by attaching a similarly weighted cap to the opposite end of the lower plate.

As mentioned above, the present invention is designed to prevent inaccuracies in cutting the raw cloth or attaching it to the winding cylinder during the production of the roll screen, or inaccuracies in the attachment of the winding cylinder in installing the roll screen, or the use of the roll screen. A roll screen that eliminates the unwinding of raw cloth caused by stretching of the raw cloth inside and various other causes with an extremely simple operation, and allows the raw cloth to be accurately rolled up into a winding cylinder. I will provide a.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing a conventional roll screen, Fig. 2 is a partially cutaway front view showing an embodiment of the roll screen of the present invention, and Fig. 3 is a partially cutaway front view of the roll screen shown in Fig. 2. 4A, 4B and 4C are perspective views showing various forms of the weighted cap shown in FIG. 3, and FIG. 5 is a partially cutaway view showing another embodiment of the roll screen of the present invention. The cutaway view, FIG. 6, is an enlarged view of the connecting portion between the cap and the weight shown in FIG. 5. 1... Winding cylinder, 2... Bracket, 3...
Coil spring, 4... raw cloth, 5... lower plate, 6... operating string, 7... winding disorder, 8... weight, 9... cap, 10... cap, 11... weight holder, 12... weight.

Claims (1)

[Scope of utility model registration request] In a roll screen in which the upper end of raw cloth is attached to a winding cylinder that is always given rotational force in one direction by a built-in spring, and a lower plate is attached to the lower end of the raw cloth, one end of the lower plate is attached. Or a roll screen characterized by having weights attached to both ends that can adjust the weight as appropriate.