JP3691317B2 - blind - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to blinds.
[0002]
[Prior art]
As a conventional blind, a ladder cord suspended from a ladder cord support device in a head box is supported so as to be able to tilt, and a bottom rail is disposed below the slat row and is suspended from the head box. Generally known is one in which one end of an elevating cord is inserted into a slat row and connected to a bottom rail, and the slat row and the bottom rail are moved up and down by the elevating cord. In such a blind, one end of the lifting / lowering cord is coupled at a plurality of locations spaced in the longitudinal direction of the bottom rail, and the coupling position is positioned on a central axis passing through the center in the front-rear direction of the bottom rail. .
[0003]
[Problems to be solved by the invention]
In such a conventional blind, when the slat is lifted by operating the lifting / lowering cord, the folded slats are not always horizontally aligned and overlap, and the slats are either on the front side or the rear side. In some cases, it may be folded up and tilted. In particular, when the shape of the slat is a flat plate with a small curvature in the front-rear direction, the slats are not easily overlapped in the front-rear direction, and the tendency to incline toward one side is increased. Since it is not fixed whether the front side or the rear side is tilted, for example, when multiple blinds are installed side by side, when the blinds are lifted all at once, the state of tilting with the adjacent blinds varies. There is a problem that there is a risk that the design is lacking.
[0004]
This invention is made | formed in view of this subject, and it aims at providing the blind which can determine the inclination of the slat when folded up to the one side decided reliably.
[0005]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the blind according to the present invention supports a plurality of slats so as to be tiltable by a ladder cord suspended from a ladder cord support device in a head box, and a bottom rail is arranged below the slat row. In the blinds, one end of the lifting cord hanging from the head box is inserted into the slat row and connected to the bottom rail, and the slat row and the bottom rail are raised and lowered by the lifting cord,
When the slat is in a horizontal state, the bottom rail is configured such that the upper surface of the bottom rail is inclined to one of the front side and the rear side, and when the lifting cord is raised, the bottom rail the upper surface of the is configured to rise inclined to said predetermined one side.
[0006]
When the lifting / lowering cord is raised, the upper surface of the bottom rail is inclined upward from the horizontal plane, so that when the bottom rail comes into contact with the nearest slat, the slat is inclined to the inclination of the bottom rail. It rises in the state. Since it is forcibly folded up from the lower slats in accordance with the inclination of the bottom rail, the inclination of the slats can be determined on one predetermined side.
[0007]
One end of the lifting / lowering cord is connected to the bottom rail at a position offset to one side in the front-rear direction with respect to the center axis extending in the longitudinal direction of the bottom rail and passing through the center in the front-rear direction of the bottom rail By doing so, it can be configured such that the upper surface of the bottom rail rises while being inclined in a predetermined direction.
[0008]
Alternatively, the position of the center of gravity of the bottom rail is set to a position that is offset to one side in the front-rear direction with respect to the center axis that extends in the longitudinal direction of the bottom rail and passes through the center in the front-rear direction of the bottom rail. By doing so, it can be configured such that the upper surface of the bottom rail rises while being inclined in a predetermined direction.
[0009]
Needless to say, the present invention can be applied to a slat having a curvature, but is more effective when applied to a flat slat.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 5 are views showing a first embodiment of a horizontal blind according to the present invention.
[0011]
The horizontal blind 10 has a head box 12 attached to a wall surface or a ceiling surface via a bracket 11, and a multi-stage slat is formed by a ladder cord 16 suspended from a ladder cord support device 14 in the head box 12. 18 is supported to be tiltable. A bottom rail 20 is supported on the lowermost stage of the slat 18. Further, a lifting / lowering cord 24 is suspended from a lifting / lowering cord support device 22 in the head box 12 from the head box 12, and one end 24 a of the lifting / lowering cord 24 is connected to the bottom rail 20 through each slat 18. Has been. The slat 18 has a flat plate shape with a smaller curvature than a normal slat.
[0012]
The ladder cord support device 14 tilts the slat 18 by selectively pulling up one side of each ladder cord 16 and lowering the other side by a driving pipe 32 that is rotationally driven by a built-in motor 30. (The right side of FIG. 1 shows the slat tilted). Similarly, the lifting / lowering cord support device 22 is used to lift and lower the bottom rail 20 and the slat 18 by winding or unwinding the lifting / lowering cord 24 by the drive pipe 32.
[0013]
As shown in an enlarged view in FIG. 3, a storage hole 20 a is formed in the bottom rail 20 from its lower surface. The lower end of the ladder cord 16 is inserted from the opening of the storage hole 20a, and the lower end of the ladder cord 16 is fixed to the bottom rail 20 by a holder cap 26 that seals the opening. Further, a communication hole 20b communicating with the storage hole 20a is formed on the upper surface of the bottom rail 20, and one end 24a of the lifting / lowering cord 24 is inserted through the communication hole 20b, and a knot formed at the one end 24a. 24b is stored in the storage hole 20a and is locked in the communication hole 20b. The position of the communication hole 20b extends in the longitudinal direction of the bottom rail 20 and passes through the center of the bottom rail 20 in the front-rear direction. It is offset to the rear side (see FIG. 4). Therefore, even when the slat 18 is in a horizontal state, the bottom rail 20 is in a state of being inclined slightly downward toward the front side as shown in FIG.
[0014]
When the lifting / lowering cord support device 22 is operated from the horizontal state of the slat 18 to raise the lifting / lowering cord 24, the bottom rail 20 is lifted and comes into contact with the nearest slat 18. At this time, since the upper surface of the bottom rail 20 is inclined, the slats 18 that are in contact with the bottom rail 20 rise in a state of being slightly inclined to the front in accordance with this inclination, and as shown in FIG. The slats 18 can be forcibly folded according to this inclination.
[0015]
In this way, the slat 18 can be folded up according to the inclination of the bottom rail 20 without fail. Therefore, even when a plurality of blinds are arranged side by side in a series of windows and the blinds are raised all at once, the inclination of the slats 18 can be adjusted, so that the design can be improved. In addition, even in the case of double use in front and rear with another opening / closing device such as a roll screen or a curtain, the inclination direction of the slat 18 can be determined in advance so as not to interfere with the other opening / closing device.
[0016]
FIG. 6 is a view corresponding to FIG. 3 showing the second embodiment. Since other parts are the same as those of the first embodiment, illustration is omitted.
[0017]
In this example, the position at which one end 24a of the lifting / lowering cord 24 is connected to the bottom rail 20 is set on the central axis instead of being offset from the central axis of the bottom rail 20, that is, the communication hole 20b is arranged on the central axis. The volume on the front side of the central axis of the rail 20 is made larger than the volume on the rear side. Thereby, the gravity center position of the bottom rail 20 is offset to the front side, and can be inclined to the front side in the front-rear direction. Thus, as in the first embodiment, the convolution of the slat 18 can be forced to match the inclination of the upper surface of the bottom rail 20.
[0018]
FIG. 7 is a view corresponding to FIG. 3 showing the third embodiment. Since other parts are the same as those of the first embodiment, illustration is omitted.
[0019]
In this example, the position where one end 24a of the lifting / lowering cord 24 is connected to the bottom rail 20 is used as the central axis instead of being offset from the central axis of the bottom rail 20, that is, the communication hole 20b is disposed on the central axis. The density on the front side of the center axis of 20 is made larger than the density on the rear side. Thereby, the center of gravity of the bottom rail 20 is offset to the front side, and can be inclined to the front side in the front-rear direction. In this manner, the slat 18 can be forcibly matched with the inclination of the upper surface of the bottom rail 20 in the same manner as in the above-described embodiment.
[0020]
Further, the center of gravity of the bottom rail 20 is offset as in the second embodiment or the third embodiment, and the connection position of the one end 24a of the lifting / lowering cord 24 is offset from the center axis as in the first embodiment. Of course, it is also possible.
[0021]
【The invention's effect】
As described above, according to the first to fourth aspects of the invention, when the elevating cord is raised, the upper surface of the bottom rail is tilted and raised to either the front side or the predetermined one side. In addition, when the slats are folded up, the inclination of the slats is forcibly aligned with the inclination of the bottom rail, so that the slats can always be inclined to one predetermined side. Therefore, for example, even when a plurality of blinds are arranged side by side in a continuous window type and the blinds are raised all at once, the inclination of the slats can be aligned with all the blinds, so that the appearance can be improved, Alternatively, even in the case of double use before and after another opening / closing device such as a roll screen or a curtain, the direction of inclination of the slat can be determined in advance so as not to interfere with the other opening / closing device.
[Brief description of the drawings]
FIG. 1 is a front view illustrating an embodiment of a blind according to the present invention.
2 is a cross-sectional view taken along line 2-2 of the blind in FIG. 1. FIG.
FIG. 3 is an enlarged cross-sectional view of a connecting portion between one end of the lifting / lowering cord of FIG. 1 and a bottom rail.
FIG. 4 is a partial top view of the bottom rail.
5 is a side view showing an intermediate state when the lifting cord of FIG. 1 is raised. FIG.
FIG. 6 is a view corresponding to FIG. 3 showing the second embodiment.
FIG. 7 is a view corresponding to FIG. 3 showing a third embodiment.
[Explanation of symbols]
10 Blind 12 Head box 14 Ladder cord support device 16 Ladder cord 18 Slat 20 Bottom rail 24 Lifting cord 24a One end

Claims (4)

The ladder cord (16) suspended from the ladder cord support device (14) in the head box (12) supports the multi-stage slats (18) in a tiltable manner, and the bottom rail (20) below the slat (18) row. ), One end (24a) of the lifting / lowering cord (24) suspended from the head box (12) is inserted into the slat (18) row and connected to the bottom rail (20), and the lifting / lowering cord (24) In the blind that is adapted to raise and lower the slat (18) row and the bottom rail (20),
When the slat (18) is in a horizontal state, the upper surface of the bottom rail (20) is configured to be in a state inclined to either the front side or the rear side, and the elevating cord (24) when raised, the blind upper surface of the bottom rail (20) is characterized in that it constitutes to rise inclined to said predetermined one side.   One end (24a) of the lifting / lowering cord (24) is extended in the longitudinal direction of the bottom rail (20) and passes through the center of the bottom rail (20) in the front-rear direction. The blind according to claim 1, characterized in that it is connected to the bottom rail (20) at a position offset to either side.   The position of the center of gravity of the bottom rail (20) is either the front side or the rear side of the central axis with respect to the central axis extending in the longitudinal direction of the bottom rail (20) and passing through the center of the bottom rail (20) in the front-rear direction. The blind according to claim 1, wherein the blind is set at a position offset to one side.   The blind according to any one of claims 1 to 3, wherein the slat (18) has a flat plate shape.

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