JPH0335034Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Field of application of invention] The present invention relates to horizontal blinds.

[Conventional technology and issues to be solved]

Horizontal blinds, which have been widely used in the past, have a large number of slats, which are horizontally long and relatively narrow thin plates, attached to each rung of two or more ladder-like ladder cords suspended below the head box. Each slat is supported by a single sheet, and has a structure in which a large number of slats in a horizontal position are arranged vertically at regular intervals.Furthermore, each crosspiece of a plurality of ladder cords is used to switch between light blocking and lighting. A rotary operation mechanism that rotates the entire slat synchronously by relatively raising and lowering the supporting vertical cords on both sides (hereinafter referred to as both vertical cords), and a rotation operation mechanism that rotates the entire slat synchronously, and a lower plate located at the lower end of the blind that rotates upward. It also includes, as necessary components, an elevating mechanism that opens the blind window by pulling it up, and closes the blind window by lowering the lower plate.

By the way, in the above-mentioned horizontal blinds, if even one of the slats shifts in the longitudinal direction, the original function of the blind will be impaired. It is important to prevent displacement of each slat in the longitudinal direction. For this purpose, generally, a lifting cord is used that is stretched from the lower plate to the upper head box, and this lifting cord is inserted through a hole drilled in the center of each slat in the width direction. Then, positioning the slats,
It is normal to prevent slippage.

However, with such a configuration, firstly, the holes provided in the slats cause light leakage when the blind is in a light-blocking state, and secondly, it is difficult to assemble the blinds. In particular, during repairs, there are difficulties in workability, such as the slats cannot be replaced in the middle unless the whole thing is dismantled.

Therefore, instead of using lifting cords to position and prevent slats from slipping, a method using ladder cords has been considered. This eliminates the hole in the slat and provides a triangular notch on the side edge where the cords on both sides of the ladder cord engage, and the cords on both sides and the notch in the slat are connected in the longitudinal direction of the slat. This is a method for positioning and preventing displacement.

However, when the present inventor investigated the practical application of horizontal blinds of this type, it was found that there are still points that need to be improved.
This concerns the manner in which the lifting cords are stretched between the head box and the lower plate and their position. At the same time, the number of lifting cords is reduced in consideration of low cost and ease of assembly work. It is related to.

In other words, as is well known, the lower plate acts as a so-called weight, and it is desired that its weight maintains some kind of connected relationship with each slat in order to maintain the normal posture of the entire blind. Since the openings in the slats are eliminated, the lifting cords will inevitably be stretched along the width edges of the slats, but in this case, if the number of lifting cords is not increased, When putting it into practical use, further consideration must be given to the fact that since it is located only on one side of the lifting cord (the window side or indoor side of the blind), the posture of the lower plate becomes unstable.

[Structure of the idea]

The present invention has been developed in consideration of the various points mentioned above, and the slat is positioned in the longitudinal direction and prevented from shifting by engaging the notch in the side edge of the slat with the ladder cord. Two or more lifting cords stretched between the lower plate and the head box are arranged in a specific relationship with respect to the front-back direction of the entire blind (width direction of the slats), and the lifting cords are linked to the ladder cord. The various problems mentioned above are suitably solved by attaching it in a state in which it is attached.

The gist of the present invention that achieves the above points is that a head box and a lower plate arranged in pairs below the head box are connected to the lower plate by being suspended from a plurality of positions in the longitudinal direction of the head box,
In addition, a ladder-like ladder cord having multiple rungs in the vertical direction, a large number of slats installed horizontally, one on each rung across these plurality of ladder cords, and each slat from two or more positions in the longitudinal direction of the head box. In a horizontal blind equipped with a cord for lifting and lowering a lower plate that extends to suspend the lower plate below,
Each of the slats is formed with side edge notches in which the vertical cords on both sides of the ladder cord engage, and the engagement of these cords with the notches positions the slats in the longitudinal direction and prevents them from slipping. At least one of the cords is located on one side of the blind in the longitudinal direction, and the other lifting cord is located on the opposite side of the blind in the longitudinal direction, and these lifting cords are attached to the vertical cord of the ladder cord. The cord is provided so as to be inserted through the loop extending from the cord.

[Examples and their effects]

FIG. 1 shows a horizontal blind according to an embodiment of the present invention. In the figure, 1 is a head box fixed to the upper part of the window frame, and 2, 2 are vertical blinds hanging downward from near both ends of the head box 1 in the longitudinal direction. These are a pair of ladder-like ladder cords, and these pairs correspond to each other and have multi-stage crosspieces 3, 3 in the vertical direction.
..., and slats 6, 6, ... for each sheet are placed on each of these crosspieces and arranged as shown in the figure. As shown in an enlarged view in FIG. 2, this slat 6 is engaged with vertical cords 4 and 5 on both sides of the ladder cord 2 (in the figure, cord 4 is on the indoor side and cord 5 is on the window side). Width side edge notches 7 and 8 are provided. This notch 7, 8
Although the slats are generally triangular in shape, they are not particularly limited to this, but they should be shaped and sized so as to maintain sufficient engagement with the cords 4 and 5 and do not affect the strength of the slats 6. It may be determined as appropriate.

Reference numeral 9 denotes a lower plate, and two lifting cords 10 and 11 are stretched between the lower plate 9 and the head box 1. One of the lifting cords 10 is attached to the indoor cord 4 of the right side ladder cord 2 in FIG. Positioned and prevented from shifting.

The other lifting cord 11 is attached to the window cord 5 of the left side ladder cord 2 in FIG. 1 by passing through a loop 12 in the same manner.

The lifting cords 10 and 11 are guided to one end in the longitudinal direction (the right end in FIG. 1) within the head box 1 by guide rollers, etc., and are connected to the outside via an appropriate stopper device 13. and is connected to the lifting/lowering operation cord 14. Also 15
is a rotary operation rod that rotates and tilts the entire slats 6, 6...

According to this embodiment with the above-described structure, there is no hole in the slat, so there is no problem of light leakage when shielding the slat, and positioning and slippage prevention using the ladder cord are performed well, and the slat is Since it is simply placed on the ladder cord crosspiece, there is an advantage that assembly and replacement work can be performed extremely easily. Furthermore, the lifting cords 10 and 11 and the ladder cord have a loop 12.
Since the slats are linked to each other for positioning and prevention of displacement, even when the lower plate 9 is pulled up to a certain extent, the slats will not partially shift in the longitudinal direction.
Moreover, since these lifting cords 10 and 11 are divided into two sides in the front and back direction of the blind, they do not generate any rotational force against the lower plate 9, so their posture is stable, and the blind functions as a whole very well. It is something that can be played.

Note that the number of lifting cords is sufficient as long as it satisfies the need for suspending the lower plate, and it is not necessary to always provide them in a one-to-one relationship with the ladder cord. In order to stabilize the blind, two or more lifting cords need to be distributed in the front-back direction of the blind. FIG. 3 illustrates some of the ways in which the lifting cords are distributed, and in the figure, reference numeral 4 indicates the indoor cord of the ladder cord, 5 indicates the cord on the window side, and 10 indicates the indoor cord of the lifting cord. On the inside, 11 shows the one on the alumni side.

[Effect of idea]

As described above, the horizontal blind according to the present invention has the following effects and has great practical benefits.

(b) There is no light leakage when the light is blocked, and workability such as assembly and replacement of slats is easy.

(b) A small number of lifting cords is sufficient, and the posture of the lower plate is guaranteed by the distributed arrangement of these lifting cords.

(c) The lifting cord, the ladder cord, and the slats are directly or indirectly linked to each other, so that the lower plate can effectively maintain the posture of the entire blind, position the slats, and prevent them from slipping.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the horizontal blind according to the present invention, Fig. 2 is a view explaining details of the same part, and Fig. 3 is a view showing several examples of distributed arrangement of lifting cords. It is. 1... Head box, 2... Ladder code,
4...Vertical code (indoor side), 5...Vertical code (window side), 6...Slat, 7, 8...
Notch, 9... Lower plate, 10... Lifting cord (indoor side), 11... Lifting cord (window side).

Claims (1)

[Scope of utility model registration request] a head box and a lower plate arranged in pairs below the head box; a ladder-like ladder cord that is suspended from a plurality of positions in the longitudinal direction of the head box and connected to the lower plate, and has multiple rungs in the vertical direction; , a large number of slats installed horizontally across these multiple ladder cords, one on each crosspiece, and one slat from each of two or more positions in the longitudinal direction of the headbox.
In a horizontal blind equipped with a cord for raising and lowering the lower plate that extends to the book and suspends the lower plate below, each of the slats has a side edge notch with which the vertical cords on both sides of the ladder cord engage. At least one of the lifting cords is positioned on one side of the blind in the front-rear direction, and the other lifting cords are positioned on one side of the blind in the longitudinal direction. is located on the opposite side of the blind in the longitudinal direction, and furthermore, these lifting cords are attached to the vertical cords of the ladder cords and are provided so as to be inserted through loops extending from the cords. BLIND.