JP3939268B2 - Blind lift cord retaining structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a blind in which a shielding material can be moved up and down by a lifting cord, and for example, relates to a lifting / lowering cord retaining structure of a blind capable of retaining a lifting cord when the shielding material is removed from a head box.
[0002]
[Prior art]
Conventionally, the upper end of the shielding material is attached to the head box, the lifting cord hangs down from the head box via the guide member, passes through the insertion portion provided in the shielding material, and the enormous portion formed at the lower end portion of the lifting cord is A blind that is connected to a shielding material and is capable of raising and lowering the shielding material as the elevating cord moves is generally known.
[0003]
In such a blind, the shielding material may be removed from the head box for replacement or washing, in which case the lower end of the lifting cord connected to the shielding material is removed and the upper end of the shielding material is attached to the head box. Further, by removing the lifting / lowering cord inserted through the insertion portion of the shielding material, the shielding material is released from the head box and the lifting / lowering cord and removed.
[0004]
However, when removing the shielding material in this way or after removing the shielding material, if an inadvertent force acts on the other end of the lifting / lowering cord suspended from the head box, the lower end of the lifting / lowering cord moves into the head box. There is a problem of being drawn. Once the lower end of the lifting / lowering cord is drawn into the head box, it is difficult to restore the lifting / lowering cord because the inside of the head box is narrow and the guide member must be passed through.
[0005]
As a structure for preventing the lifting / lowering cord from solving this problem, for example, there is one proposed in Patent Document 1. In the structure proposed in Patent Document 1, the lifting / lowering cord hangs down via a roller in the rail, and the lower end portion thereof is connected to the insertion ring at the lower part of the curtain base, and a hump is formed at the lower end portion of the lifting / lowering cord. A retaining member having a retaining portion for preventing the passage of the bump is attached to the lifting / lowering cord movement position on the lower side of the roller.
[0006]
As a result, when the lifting / lowering cord is pulled into the rail when the curtain is removed, the bump formed on the lower end of the lifting / lowering cord is caught by the retainer. Is prevented from being drawn into.
[0007]
[Patent Document 1]
Utility Model Registration No. 2551363 (column 3, lines 24 to 42)
[0008]
[Problems to be solved by the invention]
However, in the conventional one described in Patent Document 1, in order to mount the retainer on the lower side of the roller, the retainer is clamped and fixed to a mounting bracket that supports the roller with a screw or the like. There is a problem that the assembling work is complicated and it is difficult to attach to existing products.
[0009]
The present invention has been made in view of such problems, and an object of the present invention is to provide a structure for preventing the lifting cord of a blind from being easily assembled. Another object of the present invention is to provide a structure for preventing the lifting / lowering cord of the blind from being easily attached to an existing product.
[0010]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the invention according to claim 1 is characterized in that the upper end of the shielding material is attached to the head box, and the lifting cord is suspended from the head box via the guide member and provided on the shielding material . Passing through the insertion part, the lower end portion of the lifting / lowering cord is connected to the shielding material, and the lifting / lowering cord retaining structure in the blind where the shielding material can be lifted / lowered with the movement of the lifting / lowering cord,
An enormous portion is provided at the lower end of the elevating cord, and a portion of the elevating cord other than the enormous portion can be inserted between the guide member and the uppermost insertion portion, while a retaining member to which the enormous portion cannot be inserted is raised and lowered It is attached movably along the cord, the retaining member cannot pass through the guide member, and the retaining member is placed on the uppermost insertion portion during normal blind operation. .
[0011]
When the fabric is removed from the head box or in a state where it is removed from the head box, when the lifting / lowering cord is about to be drawn into the head box, the enormous portion provided at the lower end of the lifting / lowering cord cannot pass through the retaining member. Since the contact with the retaining member and the retaining member cannot pass through the guide member, the retaining member and the enormous portion are caught by the guide member. As a result, the enormous portion is prevented from being pulled into the head box by the retaining member and the guide member.
[0012]
Since the retaining member is movably attached along the lifting / lowering cord and is not fixedly attached to the head box, its assembling work is simple and should be applied regardless of the structure of the head box. Can do.
[0013]
The invention according to claim 2 is characterized in that the retaining member according to claim 1 is detachably attached to an elevating cord between the guide member and the uppermost insertion portion. With this configuration, it is possible to incorporate the retaining member into a blind that has already been assembled or a blind that is already in use.
[0014]
The invention according to claim 3 is characterized in that the retaining member has a central hole through which the lifting / lowering cord can be inserted, and a closed slit that communicates the central hole with the outside. By passing the lifting / lowering cord through the closing slit of the retaining member and guiding the lifting / lowering cord to the central hole of the retaining member, the retaining member can be easily incorporated into the lifting / lowering cord.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0017]
FIG. 1 is an overall view showing a blind according to an embodiment of the present invention. In the figure, a blind 10 is provided with a head box 12 fixed to a wall surface or a window frame by a bracket 13, and an upper end of a cloth 14 which is a shielding material can be attached to and detached from the head box 12 via an attachment means 15. It is attached. For example, the detachable attachment means may be a pair of hook-and-loop fasteners that can be engaged with each other.
[0018]
A cord insertion guide 16, which is a guide member, is fixed to an appropriate position in the head box 12, and a lifting / lowering cord 18 is inserted through the cord insertion guide 16. A plurality of lifting / lowering cords 18 are provided in conformity with the width dimension of the fabric 14, and each lifting / lowering cord 18 hangs vertically along the back surface of the fabric 14 via the corresponding cord insertion guide 16. . One end side of the hanging lifting / lowering cord 18 is inserted in the vertical direction through a plurality of cord rings 20 (insertion portions) attached to the back surface of the fabric 14 so as to be spaced apart in the vertical direction. The weight bar 17 provided at the lower end of the fabric 14 or the lowermost cord ring 20a is connected.
[0019]
4 and 5 are diagrams illustrating an example of the connection between the lower end portion of the lifting / lowering cord 18 and the fabric 14. A cord holder 18a is attached to a lower end portion of the lifting / lowering cord 18, and a second cord holder 19 is hooked to a lowermost cord ring 20a by a hook 19a formed integrally therewith. The lower end portion of the lifting / lowering cord 18 is connected to the fabric 14 by the cord holder 18a being inserted into and engaged with the second cord holder 19 that is hooked on the cord ring 20a. The cord holder 18a is an enormous portion having a larger diameter than other portions of the lifting / lowering cord 18. However, apart from the cord holder 18 a for connecting the lifting / lowering cord 18 and the fabric 14, a huge portion such as a knot can be provided at the lower end of the lifting / lowering cord 18.
[0020]
Further, the other end of the lifting / lowering cord 18 is inserted into the cord insertion guide 16 and guided to the end of the head box 12, inserted through the stopper 22, and then suspended from the end of the head box 12. Connected to the knob 24.
[0021]
As shown in FIG. 2, a retaining member 26 is provided at a portion between the uppermost code ring 20 b of the elevating cord 18 and the cord insertion guide 16. The retaining member 26 has a donut shape made of synthetic resin or the like, and has a center hole 26a at the center and a closed slit 26b extending in the radial direction so as to communicate the center hole 26a with the outside. The size of the center hole 26a is set such that the cord holder 18a, which is the enormous portion, cannot be inserted, but the lifting / lowering cord 18 other than the cord holder 18a can be inserted. Furthermore, the size of the center hole 26a is set to a size that the cord ring 20 cannot be inserted. The outer diameter of the retaining member 26 is set to a size that the cord insertion guide 16 cannot be inserted.
[0022]
The retaining member 26 allows the lifting / lowering cord 18 to pass through the center hole 26a by passing the closing slit 26b through the lifting / lowering cord 18, and the lifting / lowering cord 18 can be inserted through the center hole 26a. The retaining member 26 is movable along the lifting / lowering cord 18. However, since the cord ring 20 cannot be inserted through the center hole 26a of the retaining member 26, the retaining member 26 is usually disposed immediately above the uppermost cord ring 20b (see FIG. 2).
[0023]
In the blind constructed as described above, when the fabric 14 is removed for washing or replacement, the following operation is performed. First, the cord holder 18a is removed from the cord holder 19 (see FIG. 5). Then, the upper end of the fabric 14 is removed from the head box 12 by the attaching means 15, and the fabric 14 is separated from the head box 12. At this time, the cord holder 18a of the lifting / lowering cord 18 passes through the cord ring 20 in order from the lower cord ring 20 and is removed from the dough 14 in advance. Since the lifting / lowering cord 18 passes through the retaining member 26 but the cord holder 18a cannot pass therethrough, the retaining member 26 descends along the lifting / lowering cord 18 and comes into contact with the cord holder 18a.
[0024]
Thereafter, when the other end side of the lifting / lowering cord 18 is pulled and one end side of the lifting / lowering cord 18 is about to be pulled into the head box 12, the cord holder 18a is lifted together with the retaining member 26 as shown in FIG. As a result, the cord insertion guide 16 is reached. At this time, since the retaining member 26 cannot pass through the cord insertion guide 16, the retaining member 26 and the cord holder 18 a are caught in front of the cord insertion guide 16, and all the lifting / lowering cords 18 are drawn into the head box 12. Is prevented.
[0025]
The fabric 14 released from the head box 12 is further removed from the lowermost cord ring 20a by removing the hook 19a of the second cord holder 19 and then washed or replaced with another new fabric 14. The second cord holder 19 can be hooked again and attached to the head box 12 by a procedure opposite to the above.
[0026]
As described above, the retaining member 26 of the present embodiment is not fixed to the head box 12 and can be moved along the lifting / lowering cord 18, so that the assembling work is simple. Further, the retaining member 26 can be incorporated without being affected by the structure of the head box 12.
[0027]
Further, since the retaining member 26 is detachable from the lifting / lowering cord 18, the retaining member 26 can be easily incorporated not only into the already assembled blind but also into the blind already in use. Further, by using the closed slit 26 b of the retaining member 26, it can be easily attached to the assembled lifting cord 18.
[0028]
In the above embodiment, the case where the lifting / lowering cord 18 is the guide member for guiding the lifting / lowering cord 18 from the head box 12 has been described as the cord insertion guide 16 through which the lifting / lowering cord 18 is inserted, but the present invention is not limited thereto. The same applies to a case where the guide member is a roller rotatably attached to the head box, or an inclined path fixedly arranged with respect to the head box. It can be similarly applied by setting the size or shape of the retaining member to a size or shape that cannot pass through a roller or an inclined path.
[0029]
【The invention's effect】
As described above, according to the present invention, the retaining member is attached so as to be movable along the lifting / lowering cord, and is not fixedly attached to the head box. It can be applied regardless of the structure of the head box.
[Brief description of the drawings]
FIG. 1 is an overall front view showing a blind according to an embodiment of the present invention.
2A is a perspective view of a part of a blind according to an embodiment of the present invention, and FIG. 2B is a partially enlarged view thereof.
FIG. 3A is a perspective view of a part of the blind in a state where the cloth is removed from the head box, and FIG. 3B is a partially enlarged view.
FIG. 4 is a perspective view showing a lower end portion of a lifting / lowering cord.
FIG. 5 is an explanatory perspective view showing the removal of the cord holder at the lower end of the lifting / lowering cord.
[Explanation of symbols]
10 Blind 12 Head box 14 Fabric (shielding material)
16 Cord insertion guide (guide member)
18 Lifting cord 18a Cord holder (large part)
20, 20a, 20b Code ring 26 Detachment member 26a Center hole 26b Closed slit

Claims (3)

The upper end of the shielding material (14) is attached to the head box (12), and the lifting / lowering cord (18) hangs down from the head box (12) via the guide member (16) and is provided on the shielding material (14). In the blind in which the lower end portion of the lifting / lowering cord (18) is connected to the shielding member (14) through the insertion portion (20) and the shielding member (14) can be lifted / lowered as the lifting / lowering cord (18) moves. A lifting cord retaining structure,
An enormous portion (18a) is provided at the lower end of the elevating cord (18), and the elevating cord (18) other than the enormous portion (18a) is disposed between the guide member (16) and the uppermost insertion portion (20b). A retaining member (26) through which the portion can be inserted but the enormous portion (18a) cannot be inserted is movably attached along the lifting / lowering cord (18), and the retaining member (26) attaches the guide member (16). The blind lifting / lowering cord retaining structure, wherein the retaining member (26) is placed on the uppermost insertion portion (20b) during a normal blind operation.   The lifting / lowering of the blind according to claim 1, wherein the retaining member (26) is detachably attached to a lifting / lowering cord (18) between the guide member (16) and the uppermost insertion portion (20b). Cord retaining structure.   The said retaining member (26) has a center hole (26a) into which the lifting / lowering cord (18) can be inserted, and a closed slit (26b) that communicates the center hole (26a) with the outside. Item 3. A structure for preventing a lifting cord for a blind according to Item 2.

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