JPH0443597Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a blind, and more specifically to the structure of a weight at the lower end of the blind called a lower plate.

(Prior art) A typical structure of a conventional blind is, for example, a fifth blind.
A plurality of ladder-like ladder cords 51 shown in the figure and suspended from a head box (not shown) are composed of front and rear vertical cord parts 51a, 51b, and a crosspiece 51c connecting these pair of vertical cord parts 51a, 51b. While connecting the lower ends of the parts 51a and 51b to the upper corner part of the box-shaped weight 53,
The slats 52 are respectively supported on the crosspieces 51c.

The lower end of a lifting cord hanging from a head box (not shown) is connected to the weight.
The vertical cord section 51 of the ladder-like ladder cord 51 is designed to fold up a large number of slat groups by vertically operating the lifting cord.
The slat group can be rotated and tilted by relatively moving up and down a and 51b.

In addition to the blind having the configuration shown in FIG. 5, there is also known a blind in which the lower end of the ladder cord 61 is connected to the weight 63 in a different manner, as shown in FIG. ing. The blind of the type shown in FIG.
It has a structure in which it is connected to the lower corner of the.

(Problems to be Solved) However, the conventional apparatus as described above has the following problems.

In other words, in the conventional blind shown in FIG. 5, when the slat group of the blind is rotated and tilted to the limit position as shown in FIG. The problem is that sometimes it is not done enough compared to the upper part. This is well explained in Figure 5B, and is because no further rotational tilting occurs once the center of gravity O of the weight is directly below one vertical cord section (vertical cord section 51b in this figure). .

Moreover, in the example of FIG. 6, this problem becomes even more serious. That is, as explained in FIG. 6B, the length of the front and rear vertical cord portions determines the inclination of the weight, and as a result, desired rotational and tilting movements cannot be obtained at the lower end portion of the blind.

(Means for solving the problem) The above problem arises because the weight is restricted in rotation by the relative vertical movement of the rudder cord. After conducting extensive research on blinds with a structure free from such restrictions, they came up with the present invention.

The feature of the blind according to the present invention is that a large number of horizontal slats are installed on each vertically spaced crosspiece of a plurality of ladder-like ladder cords hanging from a head box, and horizontal slats are installed on the lower ends of these ladder-like ladder cords. In the blind, a long weight is connected in the direction, and the lower end of a lifting cord hanging from the head box is connected to the weight, so that the group of slats can be folded up by vertically operating the lifting cord. The weight is formed as an independent flat plate connected to the lower end of each of the front vertical cord part and the rear vertical cord part of the plurality of ladder-like ladder cords,
The above-mentioned elevating cord is connected directly to the pair of front and rear flat plates or to a construction member pivotally installed across the pair of flat plates.

(Example) The present invention will be described below based on an example shown in the drawings.

Figures 1 and 2 show one embodiment of the present invention, and in these figures, 1 is a ladder-like ladder cord (hereinafter simply referred to as ladder cord);
The front vertical cord part 1a, the rear vertical cord part 1b, and the crosspiece 1 for supporting the slats explained in FIG.
It has c. 2 is a slat placed on the crosspiece 1c.

In this example, independent flat plate-shaped lower plates (weights) 3a and 3b are provided horizontally at the lower end of the front vertical cord part 1a and the lower end of the rear vertical cord part 1b, respectively.

Figure 2 shows such a pair of front and rear lower plates 3a, 3b.
FIG. 2 is a perspective view of a part of the blind according to the present example. In addition, the lifting cord 4 in this example,
4 is connected from the upper head box to the lower plates 3a, 3b through a loop 1d formed in the front or rear lifting cords 1a, 1b, but in this example, the pair of lower plates 3a, 3b are independent of each other. Therefore, it is necessary that the lifting cord has a structure in which each lower plate (weight) is connected at two or more positions.

Figure 1B shows the blind of this example in a rotated and tilted state, and compared to the conventional example shown in Figures 5 and 6, the tilting of the slats is limited by the center of gravity position of the lower plate. You will understand the state of things that never happened.

FIGS. 3 and 4 show another embodiment of the present invention, and this embodiment is characterized by a connecting plate between a pair of front and rear lower plates 3a, 3b that can pivot relative to both. 5 is constructed, and the lower end of the lifting cord is connected to the intermediate position of this connecting plate. As shown in the perspective view of FIG. 4, an opening 6 into which the curved end of the connecting plate 5 fits is formed in the front and rear lower plates 3a, 3b. By fitting the portion, a pivotable relationship is established between the lower plate and the connecting plate.

It will be understood that in this example as well, as shown in FIG. 3B, the rotation and tilting of the rudder cord provides smooth and unrestricted tilting of the slat.

(Effects of the invention) As described above, the blind according to the invention has weights constituting the so-called lower plate, which are independently provided for each of the front and rear vertical cord parts of the ladder-like ladder cord. , it does not cause problems caused by poor rotation of the weight itself as in conventional blinds, and exhibits excellent rotational and tilting properties of the slat group by conveniently responding to the relative vertical movement of the front and rear vertical cord sections. It has the effect of being able to

[Brief explanation of drawings]

Figures 1A and 2B are side views showing an example of the configuration of the blind according to the present invention, Figure 2 is a perspective view of the same, and Figures 3A and 3B are other configuration outlines of the blind according to the present invention. The figure which showed an example as a side view, and FIG. 4 are the same perspective views. FIGS. 5A and 5B and FIGS. 6A and 6B are diagrams each showing an outline of the configuration of a conventional blind. 1... Ladder cord, 1a, 1b... Vertical cord part, 1c... Crosspiece, 2... Slat, 3a, 3b
... Lower plate, 4 ... Lifting cord, 5 ... Connection plate, 6
...Opening, 51,61...Ladder code, 52,
62... Slut, 53,63... Weight.

Claims (1)

[Claim for Utility Model Registration] A large number of horizontal slats are installed on each vertically spaced crosspiece of a plurality of ladder-like ladder cords hanging from a head box, and a long horizontal weight is installed at the lower end of these ladder-like ladder cords. In the blind, a weight is connected, and the lower end of a lifting cord hanging from the head box is connected to the weight, and the group of slats can be folded up by vertical operation of the lifting cord, wherein the weight is: Formed as independent flat plates connected to the lower ends of each of the front vertical cord part and the rear vertical cord part of the plurality of ladder-like ladder cords,
A blind characterized in that the lifting cord is connected to a construction member pivotably installed directly or across the pair of front and rear flat plates.