JPS623520Y2 - - Google Patents

Description

[Detailed explanation of the idea] This invention is an improvement on horizontal blinds.

As shown in Fig. 1, conventional horizontal blinds have holes for the left and right lifting cords to pass through, on the inside of each slat 1, 1', 1'', etc., extending a reasonable distance a from both ends of each slat 1, 1', 1''... It has a structure in which the left and right lifting cords 2, 2' are passed through, respectively, and ladder cords 3, 3' are respectively provided at approximately the same positions as the lifting cords 2, 2'. 4, 4' and 5 are first and second guide rollers for lifting cords provided in the upper box 6, and after passing through the second guide roller 5, the left and right lifting cords 2, 2' are eventually A single lifting cord operating string 7 is attached at its end to the bottom rail.The left and right ladder cords 3, 3' are ladder cords fixed to a rotating shaft 8 provided in the upper box 6. The upper ends of each are fixed to the mounting members 9 and 9', and the operation string 1
0 and 10', the rotation shaft 8 is rotated to rotate each slat 1, that is, to open and close the blind.

In conventional horizontal blinds, as shown in an enlarged view in Fig. 2, there is a long distance a from the position of the hole 11 through which the lifting cord is passed through the slat 1, which is a thin aluminum plate molded product, to the end of the slat. The hole 11 through which the lifting cord is passed is designed to be long and narrow in order to allow the slat to rotate.
Since the distance between the edge of the hole and the edge of the slat is designed to be small, if an impact is applied to the edge of the slat, the slat will bend at the hole 11 position as shown by the dotted line. This is one drawback. Another disadvantage is that when each slat 1 is rotated to close the horizontal blind, light leaks through the holes 11, 11', . . . . The latter drawback is that, as shown in Figure 3, light leakage can be prevented by using wide tapes 12, 12' instead of the current string-like ladder cords, but the use of wide tapes is significantly It was thought that it would harm the interior design, and the ladder cord made of thin string shown in Figure 2 is currently being used, so the drawback of light leakage has not been solved.

The present invention is an improvement made to solve the above two drawbacks of the conventional horizontal blind, and the horizontal blind of the present invention will be explained with reference to FIG. 4 showing an embodiment thereof.

The horizontal blind of this invention has each slat 1,
Holes through which the lifting cords are passed are provided at positions close to the respective side ends at both ends of the parts 1'. Therefore, as shown in Fig. 4, the left and right lifting cords 2,
2' are located close to both ends of the horizontal blind, and the first guide rollers 4, 4' for the left and right lifting cords 2, 2' are located at both ends of the upper box 6. provided,
Two second guide rollers 5, 5' are provided adjacent to each other at intermediate positions, and left and right lifting cords 2, 2' are taken out between these second guide rollers 5, 5'. eventually becomes one lifting cord operating string 7, the end of which is attached to the bottom rail.

As a result of the above-described structure of the horizontal blind of the present invention, the distance from the position of the hole through which the lifting cord is passed to the end of the slat is very short, so even if an impact is applied to the end of the slat, the distance between the hole and the end of the slat is very short. This can greatly reduce accidents caused by breakage. Also, as shown in Figure 6, when the horizontal blind of the present invention is installed in front of two glass sliding doors, the hole will often overlap with the position of the sliding door frame.
In this horizontal blind, when the slats are rotated to the closed state, light leaking through the holes is blocked by the sliding door frame, thus eliminating the problem of light leakage.

In the horizontal blind of the present invention, the mounting positions of the ladder cords 3 and 3' are not necessarily the lifting cords 2 and 3'.
It is not necessary to provide it in line with the position of 2';
As shown in the figure, each slat can be supported to prevent bending by positioning it a considerable distance a from each end as before. In this way, in the horizontal blind of the present invention, the lifting cords 2, 2' and the ladder cords 3, 3' are provided at different lateral positions, so they can be placed at almost the same position as shown in Fig. 2. As a result of providing the cords at different positions, it is possible to eliminate the disadvantage that the cords are damaged due to rubbing against each other.

Further, in assembling a conventional horizontal blind, after inserting the slats into each stage of the ladder cords 3, 3', the elevating cords 2, 2' are passed through the holes 11 of each slat.
However, in assembling this horizontal blind, after inserting each slat 1 into the ladder cords 3 and 3', as shown in FIG. By stacking each slat and aligning the holes of each slat, the lifting cords 2 and 2' can be passed through, and in this case, there is no interference with the ladder cords 3 and 3', and therefore Assembly is much easier.

In recent years, it has become popular to use double-glazed windows for soundproofing and heat insulation, as shown in Figure 7, and it has also become common to install horizontal blinds inside such double-glazed structures. However, in this case, if the horizontal blind of the present invention is installed, the hole can be located within the window sill 14 of the double-glazed window, and the problem of light leakage can therefore be solved. The horizontal blind of the present invention is the most suitable blind to be installed in the above-mentioned double-glazed window.

In the explanation of Fig. 4, the lifting cords 2, 2'
First guide rollers 4, 4' for use are provided at both ends, and second guide rollers 5, 5' are provided adjacently at an intermediate position between them. Although it has been explained that the lifting cords 2, 2' will be lowered downward and these will eventually become one lifting cord operating string 7, it is not necessarily the case that the second guide roller 4 and 4' will be connected between the first guide rollers 4 and 4' as shown in FIG.
Even if the guide rollers 5 and 5' are not provided, for example, the lifting cord 2' can be raised from the left side of the first guide roller 4' and taken out to the right, and the lifting cord 2'
is raised from the left side of the first guide roller 4 and taken out to the right outside of the first guide roller 4', and these two cords can eventually be made into one lifting cord operating string 7.

[Brief explanation of the drawing]

FIG. 1 is a front view of a conventional horizontal blind. FIG. 2 is a partially enlarged perspective view of a conventional horizontal blind to explain the breakage of the slat end. FIG. 3 is a partially enlarged perspective view for explaining measures against light leakage in a conventional horizontal blind. FIG. 4 is a front view of the horizontal blind of the present invention. FIG. 5 is an explanatory diagram of the work of attaching the lifting cord to the horizontal blind of the present invention. FIG. 6 is a plan sectional view showing the horizontal blind of the present invention installed on the front side of a glass sliding door. FIG. 7 is a plan cross-sectional view showing the horizontal blind of the present invention installed inside a double-glazed window. 1 is a slat, 2 is a lifting cord, 3 is a ladder cord, 4 and 5 are guide rollers, 6 is an upper box, 7 is a lifting operation string, 8 is a rotating shaft, 9 is a ladder cord attachment member, 10 is a slat rotation dynamic control string,
11 is a hole through which the lifting cord is passed.

Claims (1)

[Scope of utility model registration request] In a horizontal blind in which ladder cords 3 and 3' are provided at positions extending an appropriate distance from both ends of each slat 1, holes for passing the lifting cords are provided at positions close to both ends of each slat 1, The lifting cords 2, 2' are provided through these holes at positions close to both ends of the horizontal blind, and first guide rollers 4, 4' are provided at both ends of the upper box 6, respectively. .