JPS6129912Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a roll blind for windows, and when opening and closing the sunshade sheet by operating the operating string,
This relates to an opening/closing operation string for a roll blind that allows a sunshade sheet to be opened and closed stably.

Conventionally, the operation string for opening and closing the sunshade sheet in window roll blinds is as shown in Figure 1.
One operating string 6 fixed to the center of the open end of the sunshade sheet 3 that is wound around the rotatable sheet winding section 2 attached to the upper end or side end of the frame 1
The open end of the sunshade sheet 3 is fixed to the shaft 5 of the guide roller 4.

However, the guide rollers 4 that support both ends of the sunshade sheet 3 are unstable, and even if the operating string 6 in the center is pulled out, the sunshade sheet 3 is pulled diagonally and bent, making it difficult to open and close smoothly. . Another problem was that the operating string was located within the window frame and was visible, causing an eyesore.

This invention was made in order to improve the drawbacks of the conventional example described above, and an operating string is attached to both ends of the shaft that supports the open end of the sunshade sheet pulled out from the rotatable sheet winding section. In addition to making it possible to operate the awning sheet through the inside of the window frame, the awning sheet can be opened and closed stably and reliably by connecting it into a single piece when it exits the frame frame, and the operation cord can be operated inside the window frame. To provide an opening/closing operation string for a roll blind which eliminates drawbacks such as visibility.

Hereinafter, one embodiment of this invention will be explained in detail based on FIG. 2. In the drawings, parts and parts corresponding to those of the conventional example will be described with the same reference numerals. In the figure, reference numeral 1 denotes a frame of a roll blind fixed to a window frame or the like, and this frame 1 is formed into a rectangular frame with a circumferential groove opening inward. A sunshade sheet 3 is wound around a sheet winding section 2 installed at the upper end or side end of the frame 1, and a return spring (not shown) in the sheet winding section 2 keeps the sunshade sheet 3 constantly in place. It is biased in the direction of being rolled up and stored. Further, the open end of the sunshade sheet 3 is fixed to a shaft 5 of a guide roller 4, and the guide rollers 4 at both ends of the shaft 5 can slide within the groove of the frame 1. Further, one ends of two operating strings 6 for pulling out the sunshade sheet 3 from the sheet winding section 2 are tied to both ends of the shaft 5, and these two operating strings 6 are connected to the corners of the frame 1. The idler 7 provided in the groove is inserted into the groove of the frame 1 along the drawing direction of the sheet 3, and the idler 7 provided in the center opening 1a of the lower frame or side end frame of the frame 1 is inserted through the idler 7, 7 provided in the groove. Through opening 1
a, and the opening 1 is pulled out from the frame.
Both operating strings 6 are combined into one by a connector 8 at an appropriate point pulled out of the frame from a. This opening 1a does not necessarily need to be provided at the center of the lower frame or side end frame as described above, and may be provided offset to either the left or right side from the center. The operating string 6 between the idler 7 and the shaft 5 provided at the corner of the pull-out frame 1 is inserted through the frame 1 along the direction in which the sheet 3 is pulled out. No matter which position the end of the string 6 passes through the opening 1a, the sheet 3 can be pulled out accurately by pulling the operating string 6, regardless of the position of the opening 1a. This is because they will be pulled in the same direction. The connector 8 is provided at a position where it is pulled into the interior through the opening 1a at the center of the lower frame or side end frame of the frame 1 when the sunshade sheet 3 is completely wound up in the sheet winding section 2. .

When opening and closing the sunshade sheet 3 of the roll blind using the operation string 6 of the roll blind configured as described above, pulling the operation string 6 causes the sunshade sheet 3 to be pulled from the sheet winding section 2 to the shaft 5. It is pulled out while sliding within the frame 1 by guide rollers 4 at both ends.

As explained in detail above, according to this invention, the shaft to which the open end of the sunshade sheet is fixed is not pulled diagonally within the frame, and can be opened and closed stably and reliably. be. In addition, the operating string is fixed to both ends of the shaft so that it passes through the frame, so when opening and closing the awning sheet, the operating string is visible inside the window frame and becomes an eyesore. This has practical effects such as eliminating the drawbacks such as:

Furthermore, the present invention eliminates the need to specify the opening for leading the operating string out of the frame in a narrow area such as the center of the lower frame, so it is not necessary to specify the opening for leading the operating string out of the frame, so it is possible to determine the optimal outward direction of the operating string depending on the installation location of the blind. The ability to provide a lead-out opening increases the degree of freedom in design.

[Brief explanation of the drawing]

Figure 1 is a front view and side view showing a conventional example;
The figures are a front view and a side view showing an embodiment of a roll blind according to this invention. 1... Frame, 2... Sheet winding section, 3...
Sunshade sheet, 4...Guide roller, 5...Shaft, 6...Operation string, 7...Idler, 8...
Connector.

Claims (1)

[Scope of utility model registration request] Each of the two operating strings, which pull out the sunshade sheet that is wound and energized into a sheet winding section attached to a rectangular frame for installing a window frame equipped with a circumferential groove that opens inward, connects one end to the open end of the sunshade sheet. are tied to both ends of the shaft fixed to the frame, and the other ends are inserted into the groove of the frame along the direction in which the sheet is pulled out through an idler provided in the corner groove of the frame. and a roll blind that is pulled out from the frame through an opening provided in the center of the lower frame or side end frame, and that the two operating cords are combined into one at a predetermined position outside the frame. Opening/closing operation string.