JP2525808Y2 - Blind slat support device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ladder cord for supporting a slat of a blind and a slat retainer for surely adjusting the angle of the slat by the ladder cord.

[0002]

2. Description of the Related Art In a conventional horizontal blind, a plurality of slats are supported on a ladder cord, and the slats are angle-adjusted in phase by a ladder cord driven by a slat angle adjusting device. In such a blind, for example, as shown in FIG. 4, a notch 2 is provided at an edge of the slat 1 and a ladder cord 3 is provided with two weft threads 4a, The ladder cord 3 and the slat 1 are provided close to each other in a state where the ladder cord 3b and the slat 1 cross each other, and the notch 2 is engaged with the intersection C of the both wefts 4a and 4b. Is configured to prevent lateral displacement.

On the other hand, in the uppermost slat 1, a slat retainer 5 is fitted to the slat 1 from below at a support position of the slat 1 by the weft threads 4a and 4b, and a lower slat retainer 5 is provided between the slat retainer 5 and the slat 1. The weft 4b is sandwiched. With such a configuration, the weft 4 of the ladder cord 3
The followability of the slats 1 to the operations a and 4b is improved, and the angle of each slat 1 can be reliably adjusted by operating the angle adjusting device.

[0004]

In the above construction, the lower weft 4b of the ladder cord 3 supporting the uppermost slat 1 is particularly suitable for adjusting the angle of the slat 1.
Strongly rubs with the notch 2 Further, since the notch 2 is formed by a punching process using a press machine or the like on the painted slat material, the edge thereof is sharper than other portions of the slat 1. Therefore, when the angle adjusting operation of the slat 1 is repeated, the lower weft thread 4b supporting the ladder cord 3 supporting the uppermost slat 1 may be cut, which may hinder the angle adjusting operation.

It is an object of the present invention to provide a blind slat support device which can prevent the weft of a ladder cord from being cut in the blind as described above.

[0006]

According to the present invention, in order to achieve the above object, a slat is inserted between two weft threads of a ladder cord, and a slat is provided at a weft thread supporting position of the slat to prevent a lateral displacement of the ladder cord. In a blind provided with a notch, and provided with a slat retainer that is fitted to the front and rear end edges of the slat while sandwiching the weft from below the slat, the lower weft thread passing through the notch is guided to the lower surface of the slat retainer. doing.

[0007]

According to the above means, contact between the weft below the slat and the notch of the slat is prevented.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 2, a slat retainer 1 is integrally formed of a synthetic resin and is formed to be curved in the front-rear direction along with the slat 1. ing. The slat retainer 1
A pair of claws 6 are formed on the front and rear upper surfaces so as to be folded back to the center in order to lock the front and rear edges of the slat 1,
The tip of the claw 6 has a downward projecting portion 6 as shown in FIG.
a is formed to enhance the fitting force with the slat 1.

The middle part of the slat retainer 5 is cut away from one side thereof by about two thirds of the entire width to form an opening 7.
A groove 8 is formed in the center of the upper surface of the front part and the rear part of the ladder cord 3 to accommodate the lower weft thread 4b between the lower surface of the slat 1 and the front end of the slat holder 5. As a result, the warp of the ladder cord 3 can be locked.

In order to support the uppermost slat 1 on the ladder cord 3 using such a slat retainer 1, the ends of the slat 1 are inserted into the weft yarns 4a and 4b, and the cutouts 2 are inserted into the weft yarns 4a and 4b. In this state, the slat retainer 5 is fitted to the slat 1 from below and the weft 4b below the slat 1 is inserted into the groove 8 as shown in FIG. 4b detours the lower surface of the slat retainer 5 from the opening 7.

With such a configuration, the weft 4b below the slat 1 abuts on the side edge of the slat retainer 5 at the intersection C and is prevented from contacting the notch 2, so that the weft 4b accompanying the angle adjustment of the slat 1 is formed. Can be reliably prevented from being cut. In addition, in addition to the ladder cord 3 having the crossed wefts 4a and 4b as described above, for example, a ladder cord having a weft thread stretched in parallel or a weft thread stretched in parallel is repeatedly turned up and down. A ladder code in which a slat is inserted in the meantime can be similarly implemented.

[0012]

[Effects of the Invention] As described in detail above, in this invention, a slat is inserted between two weft threads of a ladder cord, and a cutout is provided at a weft thread support position of the slat to prevent lateral displacement of the ladder cord. In a blind provided with a slat retainer that is fitted to the front and rear end edges of the slat while sandwiching the weft from below the slat, it is possible to provide a slat support device for the blind that can prevent cutting of the weft of the ladder cord beforehand. It has the effect.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment embodying the present invention.

FIG. 2 is a perspective view showing a slat retainer.

FIG. 3 is a cross-sectional view showing a claw of a slat press.

FIG. 4 is an exploded perspective view showing a conventional example.

[Explanation of symbols]

 1 Slat 2 Notch 3 Ladder cord 4a, 4b Weft 5 Slat holder

Claims (1)

(57) [Scope of request for utility model registration] 1. Two weft threads (4) of a ladder cord (3).
The slat (1) is inserted between the slats (1) and a notch (2) is provided at the weft support position of the slat (1) to prevent the ladder cord (3) from shifting laterally, and the slat (1) is located below In a blind provided with a slat retainer (5) fitted to the front and rear edges of the slat (1) with the weft threads (4a, 4b) sandwiched between the slats (1) passing through the notch (2) portion Weft (4
(b) A slat support device for a blind, wherein the slat support (5) is guided to the lower surface.