JPH084455A - Binding device for elevation cord terminal of venetian blind - Google Patents

Abstract

PURPOSE:To correct the entanglement of the elevation cords in a simple manner, as for a device for binding the terminals of a plurality of elevator cords of a Venetian blind. CONSTITUTION:A binding tool 21 for fixing the terminals of the elevator cords 20a, 20b, and 20c is equally divided to a plurality of divided bodies 21a, 21b, and 21c from the axis center. The terminal of each elevator cord is allowed to pass through the cord holes 24a, 24b, and 24c of each divided body, and fixed, and an external fitting member 22 is externally fitted with all the divided bodies and joined as the binding tool.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a lifting cord terminal binding device capable of easily correcting twisting of a lifting cord of a Venetian blind.

[0002]

2. Description of the Related Art An elevating cord terminal binding device capable of correcting twisting of an elevating cord of a venetian blind is disclosed in Japanese Patent Application Laid-Open No. HEI-1.
It is known from No. 125486. The device consists of a disc-shaped tie with a plurality of cord holes penetrating in the axial direction and an outer cylinder that fits over it, and an elevating cord with an enlarged portion at the end is inserted into the ties of the tie. The elevating cord end is bound by inserting the cord into the cord hole from the groove and then attaching the outer cylinder to the binding tool. When the lifting cords are twisted and entangled with each other, remove the outer cylinder, then remove the lifting cords from the cord holes of the tying tool through the insertion grooves, and after freely adjusting the twisting and entanglement, insert the lifting cords again. Insert it from the groove into the cord hole, then fit the outer cylinder by binding.

[0003]

When the entanglement of the lifting cord is corrected, the load of the blind acts on the lifting cord, and therefore the lifting cord is not always easy to put in and out of the cord hole of the binding tool. It was The present invention has been made to solve this problem, and an object of the present invention is to make it possible to easily correct the mutual entanglement without moving the lifting cord in and out of the cord hole of the binding tool. It is to provide a terminal binding device.

[0004]

In order to achieve the above-mentioned object, the means adopted by the present invention is to divide a tubular binding tool into a plurality of parts from the center and to equip each of the divided parts with a cord hole through which a lifting cord is passed. The external fitting member is provided to integrate each divided body with the tubular binding tool. It is desirable that the outer fitting member is fitted onto the binding tool from the bottom so that it is disengaged when an external force of a certain level or more acts. Further, the outer fitting member can be connected to the bottom rail of the blind by a cord.

[0005]

When the plurality of lifting cords are twisted with each other and the outer fitting member is removed, the divided bodies to which the ends of the lifting cords are attached are separated and separated from each other. The entanglement can be easily modified. After the correction, all the divided bodies are fitted into the tubular shape and the outer fitting member is fitted. Further, even when a person or an object is caught on the lifting cord, if the outer fitting member is automatically detached with a constant load, there is no danger of an accident and it is safe.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The apparatus of the present invention will be described based on the embodiments shown in the drawings. As shown in FIG. 1, an operation pole 11 is suspended from a head box 10 of a Venetian blind, and a grip 12 at the lower end of the operation pole 11 is used to lift three lifting cords.
One end of 20 is pulled out. The other end of each lifting cord 20 enters the head box 10 through the operation pole 11 and then the slats.
It penetrates through the lifting cord hole 13 and reaches the bottom rail 14 and is fixed there. One end of each lifting cord 20 has a cylindrical tie 21
Fasten to. A cover 22 as an external fitting member is attached to the bottom of the binding tool 21.
The upper side of the connecting cord 26 to the cover, and the lower end of the connecting cord is the side cover 15 of the bottom rail 14.
Fasten to.

As shown in FIG. 2, the tying member 21 is composed of divided bodies 21a, 21b and 21c obtained by equally dividing three cylindrical bodies from the center, and each divided body has a stepped portion 23 in which a cover 22 is fitted to the lower end of the peripheral surface. Have. When the cover 21 receives an external force of a certain amount or more in the outer radial direction or the axial direction, the cover 21 easily falls off the step portion 22 of the binding tool 21.
The lifting cords 20a, 20b, 20c are respectively divided bodies 21a,
The cord holes 24a, 24b, 24c of 21b, 21c are passed through. Each lifting cord does not come out from its cord hole,
The terminals are connected to form the enormous parts 25a, 25b, 25c.

When the lifting cords 20a, 20b, 20c are entangled with each other and the cover 22 is removed, the binding tool 21 is divided into the divided bodies 21.
a, 21b, and 21c are separated, and the twist and the entanglement are naturally corrected by the weight of each divided body to become parallel. Therefore, again, each divided body is united into a cylindrical shape and covered.
Insert 22. When people or things get caught in the lifting code,
The cover 22 is disengaged from the tie 21 and the lifting cords 20a, 20
Since b and 20c are separated and separated from the bottom rail 14, there is no danger of accidents and it is safe.

In the embodiment, the tying member has a cylindrical shape and is divided into three parts. However, the tying member may have a rectangular tube shape, or may be a two-divided body or a four-divided body depending on the number of lifting cords.

[0010]

As described above, the device of the present invention is different from the conventional one in which the respective lifting cords are inserted into and removed from the cord holes of the binding tool through the groove from the peripheral surface to correct the entanglement of the lifting cords. Since the tool itself is configured to be divided for each lifting cord, it is not necessary to put the lifting cord in and out of the binding tool, so that the entanglement can be more easily corrected. Further, when the outer fitting member for uniting the divided bodies into an integral binding is configured to be removed when a load of a certain amount or more is applied, when a person or an object is caught on the lifting cord, the lifting cord is provided before an accident. Since it is separated, it has an excellent effect of being safe.

[Brief description of drawings]

FIG. 1 is a front view of a main part of a Venetian blind equipped with a device according to an embodiment of the present invention,

2 is a perspective view showing the division of the apparatus of FIG. 1,

[Explanation of symbols]

20: Lifting cord, 21: Bundling tool, 21a, 21b, 21c: Divided body, 22: Cover (external fitting member), 23: Step portion, 24: Code hole, 25: Enlarged portion

Claims (3)

[Claims] 1. A plurality of lifting cords (20a, 20b, 20c)
Is a lifting cord terminal binding device including a binding tool (21) for axially inserting and fixing the end of the binding tool, the binding tool being equally divided into a plurality of divided bodies (21a, 21b, 21c) from the axial center. Then, attach each lifting cord to the cord hole (24a, 24
b, 24c), and connect the terminal of each lifting code to an enormous part (25
a, 25b, 25c), which are fastened to the respective divided bodies, which are united and the external fitting member (22) is externally fitted to the divided bodies. apparatus. 2. The venetian blind according to claim 1, wherein the outer fitting member (22) is set so as to be detached from the binding tool (21) when an external force of a certain amount or more acts in the radial direction or the axial direction. Lifting cord terminal binding device. 3. The lifting cord terminal binding device for a Venetian blind according to claim 1, wherein the outer fitting member (22) and the bottom rail (14) are connected via a connecting cord (26).