JP3660845B2 - Roman shade - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a roman shade.
[0002]
[Prior art]
In this type of conventional roman shade, the fabric has an upper end fixed to the head rail, a lifting cord that hangs down from the head rail, and the lower end of the fabric is connected to the fabric. And a cord ring through which a lifting / lowering cord is inserted is generally used. By raising the lifting / lowering cord, the fabric connecting portion to which the lower end of the lifting / lowering cord is connected is lifted, and the connecting portion pushes up the cord ring sequentially from the lower cord ring, thereby lifting the fabric.
[0003]
[Problems to be solved by the invention]
However, in the above-described conventional roman shade, especially the roman shade that has been enlarged, the weight of the fabric is large, so the fabric may fall to the front side due to its own weight when it is lifted up. As shown in FIG. 7, there is a problem that the connecting portion of the lifting / lowering cord, which is in a tensioned state with the lower end connected to the fabric, is warped rearward as shown in FIG. . In FIG. 7, 14 is a cloth, 16 is an elevating cord, and 30 is a cord ring. The fabric that has been crushed in this state is bent to the rear side as seen from the side as shown in the figure, looks bad, and a roman shade with a large height is attached to a position close to the window surface. In such a case, there is a problem that the window glass may be contacted.
[0005]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a roman shade capable of improving the appearance of the roman shade, for example, improving its appearance or preventing damage.
[0006]
[Means for Solving the Problems]
In order to achieve the above-described object, the invention described in claim 1 includes a cloth having an upper end fixed to the head rail, a lifting cord suspended from the head rail so that the lower end can be raised and lowered, and a lower end connected to the cloth, and the cloth. In a roman shade having a plurality of code guides that are attached to each other at predetermined intervals in the vertical direction and through which the lifting / lowering cords are inserted,
Each cord guide has a flat portion at the top and bottom, and is configured so that the flat portion can overlap with the flat portion of the code guide adjacent to the top and bottom ,
When the dough is rolled up, the flat portions of the adjacent code guides overlap to prevent the dough from collapsing . When the fabric is squeezed up, the upper and lower adjacent cord guides are overlapped in a vertical direction by the flat portion, so that the inclination of each cord guide is prevented and the connecting portion of the lifting cord with the fabric is warped up. Can be prevented.
[0007]
The invention according to claim 2 is characterized in that the overall shape of the cord guide according to claim 1 is a substantially rectangular parallelepiped shape. By making the code guide into a substantially rectangular parallelepiped shape, the rigidity and strength of the code guide can be improved.
[0008]
According to a third aspect of the present invention, an intermediate bar extending substantially horizontally at a predetermined interval in the vertical direction is attached to the cloth according to the first or second aspect, and the code guide is attached to the cloth via the intermediate bar. Each cord guide is characterized in that its vertical dimension is set to be larger than the vertical dimension of the intermediate bar to which it is attached. The intermediate bar allows the folds formed when the fabric is folded up to be aligned horizontally, and the cord guide can be easily attached to the fabric via the intermediate bar.
[0009]
According to a fourth aspect of the present invention, the cord guide according to any one of the first to third aspects has a lifting / lowering cord insertion hole through which the lifting / lowering cord is inserted in the vertical direction. Has a first taper surface toward the upper fabric side toward the upper fabric side, and a gradually tapered fabric toward the lower surface on the opposite side of the lower fabric surface. wherein the second tapered surface directed toward the opposite are formed. Since the first taper surface and the second taper surface are formed when the upper end of the cord guide is inclined so as to be separated from the fabric due to its own weight, the lifting / lowering cord arranged almost parallel to the fabric is Interference with the lifting / lowering cord through hole can be avoided, and resistance from the cord guide to the lifting / lowering cord can be reduced.
[0013]
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 an embodiment of a roman shade according to the present invention.
[0014]
The roman shade 10 has a cloth 14 whose upper end is fixed to a head rail 12 attached to a wall surface or a ceiling surface, an elevating cord 16 that hangs up and down from the head rail 12, and a predetermined distance in the vertical direction. And a cord guide 18 through which the elevating cord 16 is inserted. The upper end of the lifting / lowering cord 16 is spirally unwound and connected to the drum 20 attached to a rotary pipe 19 rotatably supported with respect to the head rail 12 so as to be wound up. The rotary pipe 19 can be driven to rotate by a motor (not shown). However, the rotating pipe can be driven manually. Further, the lifting / lowering cord 16 suspended from the head rail 12 is inserted through a cord guide 18 and its lower end is connected to a weight bar 22 provided at the lower end of the fabric 14.
[0015]
Of course, the code guide 18 may be directly attached to the fabric 14, but in this embodiment, the cord 14 is attached to the fabric 14 via a plurality of intermediate bars 24 extending substantially horizontally at a predetermined interval in the vertical direction. It is attached. As shown in FIG. 2, each intermediate bar 24 has a front groove 24a on its front side and a rear groove 24b on its rear side, and the fabric 14 is sandwiched between the front grooves 24a via slits 24c. . Further, the code guide 18 is fitted in the rear groove 24b so as to be slidable in the left-right direction.
[0016]
Each cord guide 18 can be made of, for example, plastic such as polycarbonate resin. As shown in FIG. 5, each cord guide 18 has a box shape having flat portions 18a and 18b above and below, that is, an overall shape of a substantially rectangular parallelepiped shape. The flat portions 18a and 18b can be overlapped with the flat portion 18b of the adjacent code guide 18 and the flat portion 18a of the adjacent code guide 18 below. In addition, a lifting / lowering cord insertion hole 18c through which the lifting / lowering cord 16 is inserted passes through the upper and lower plane portions 18a and 18b. The elevating cord insertion hole 18c has a first taper surface 18d that gradually approaches the upper portion as it goes upward, that is, toward the fabric 14, and a rearward portion that descends as it goes downward, that is, the fabric 14. And a second taper surface 18e heading away from the first taper surface 18d and the second taper surface 18e, the upper portion of the lifting / lowering cord insertion hole 18c extends forward as it goes upward, The lower part spreads backward as it goes down. Further, a curved surface 18f that receives the outer peripheral surface of the intermediate bar 24 and a fitting piece 18g that is slidably fitted in the rear groove 24b of the intermediate bar 24 are formed on the cloth guide 14 side of the cord guide 18. Yes. The vertical dimension of the code guide 18 is set to be larger than the vertical dimension of the intermediate bar 24.
[0017]
Next, the operation of the Roman shade configured as described above will be described. First, when the dough 14 is lowered and the rotating pipe 19 is rotated by a motor (not shown) and the drum 20 is rotated in the winding direction of the lifting / lowering cord 16, the lower end of the lifting / lowering cord 16 and the weight bar 22 connected thereto. Is lifted, the weight bar 22 comes into contact with the lowermost code guide 18, and the lower code guide 18 in turn comes into contact with the code guide 18 immediately above it, and the contacted code guide 18 and the code The intermediate bar 24 attached to the guide 18 is pushed upward. Then, the dough 14 is pulled up while forming a fold of the dough 14 between the code guide 18 and the code guide 18. When the lower code guide 18 comes into contact with the code guide 18 immediately above, the flat portions 18b and 18a overlap each other, and as shown in FIG. 2, the code guides 18 overlap each other linearly in the vertical direction. Even if the weight of the fabric 14 is large, the entire roman shade can be tucked up with good appearance without bending back. Since the code guide 18 has a substantially rectangular parallelepiped shape and the rigidity and strength thereof are ensured, the weight of the fabric 14 can be sufficiently received.
[0018]
When the lifting / lowering cord 16 is spirally wound around the drum 20, the winding position of the lifting / lowering cord 16 gradually changes in the left-right direction. In the example of FIG. Each position is displaced in a direction approaching the central portion in the left-right direction. Since the code guide 18 is movable in the left-right direction with respect to the intermediate bar 24, the code guide 18 is automatically moved in the left-right direction as shown in accordance with the change in the winding position of the lifting / lowering cord 16. Move to. The position of each cord guide 18 substantially corresponds to the winding position of the lifting / lowering cord 16 around the drum 20 when the cord guide 18 starts to rise, and the plane of the cord guides 18, 18 adjacent above and below. While maintaining the overlapping of the portions 18a and 18b, the upper code guide 18 gradually approaches the central portion in the left-right direction. Thus, since each cord guide 18 corresponds to the winding position of the lifting / lowering cord 16, the resistance applied from the cord guide 18 to the lifting / lowering cord 16 can be reduced.
[0019]
When the dough 14 is lowered, the rotary pipe 19 is rotated in the opposite direction and the drum 20 is rotated in the unwinding direction of the lifting / lowering cord 16, and the lower end of the lifting / lowering cord 16 and the weight bar 22 connected thereto are lowered. In turn, the overlapping of the upper code guides 18 is released sequentially. As shown in FIG. 4, when the code guide 18 is separated from the adjacent code guide 18 immediately below, the code guide 18 is sufficiently subjected to tension from the fabric 14 so as to keep its posture horizontal immediately after the code guide 18 leaves. Since it is not possible, the cord guide 18 falls by its own weight. At this time, since the first taper surface 18d and the second taper surface 18e of the lifting / lowering cord insertion hole 18c of the cord guide 18 are formed, the lifting / lowering cord 16 routed substantially parallel to the fabric 14 is connected to the lifting / lowering cord insertion hole. Interference with the wall surface of 18c can be avoided.
[0020]
With the above operation, the resistance applied to the lifting / lowering cord 16 during lifting / lowering can be reduced.
[0021]
However, instead of penetrating the lifting / lowering cord insertion hole 18c across the upper and lower flat portions 18a and 18b as in the above embodiment, as shown in FIG. 6, between the flat portion 18a and the flat portion 18b of the code guide 18 '. And the long holes 18h and 18h for inserting the lifting / lowering cord 16 can be formed in the flat surface portion 18a and the flat surface portion 18b, respectively.
[0022]
【The invention's effect】
As described above, according to the first to fourth aspects of the present invention, when the fabric is rolled up, the adjacent cord guides are linearly overlapped in the vertical direction. Since the adjacent cord guides overlap each other, it is possible to prevent the fabric from collapsing and prevent the fabric connecting portion of the lifting / lowering cord from warping up.
[Brief description of the drawings]
FIG. 1 is a rear view showing an embodiment of a roman shade of the present invention.
FIG. 2 is a cross-sectional view illustrating a state in which the Roman shade of FIG. 1 is lifted.
FIG. 3 is a rear view showing a state in which the roman shade of FIG. 1 is lifted;
4 is a cross-sectional view illustrating a state in which the roman shade of FIG. 1 is descending. FIG.
5A is a perspective view illustrating the cord guide of FIG. 1, and FIG. 5B is a cross-sectional view taken along line 5b-5b.
FIG. 6 is a perspective view illustrating another modification of the code guide.
FIG. 7 is a side view showing a state where a conventional roman shade is lifted up.
[Explanation of symbols]
10 Roman shade 12 Head rail 14 Dough 16 Elevating cord 18 Code guide 18a Flat portion 18b Flat portion 18c Elevating cord insertion hole 18d First tapered surface 18e Second tapered surface 20 Drum 24 Intermediate bar

Claims (4)

A fabric (14) whose upper end is fixed to the head rail (12), an elevating cord (16) that hangs down from the head rail (12) and whose lower end is connected to the fabric (14), and a fabric (14 And a plurality of cord guides (18) through which the lifting / lowering cord (16) is inserted.
Each cord guide (18) has upper and lower flat portions (18a, 18b), and the flat portions (18a, 18b) are adjacent to the upper and lower flat portions (18b, 18a) of the cord guide (18). Configured to be able to overlap ,
A roman shade characterized in that when the dough (14) is rolled up, the flat portions (18a, 18b) of the adjacent cord guides (18) overlap to prevent the dough (14) from collapsing.   The roman shade according to claim 1, wherein the cord guide (18) has a substantially rectangular parallelepiped shape as a whole.   An intermediate bar (24) extending substantially horizontally at a predetermined interval in the vertical direction is attached to the fabric (14), and a cord guide (18) is attached to the fabric (14) via the intermediate bar (24). The roman shade according to claim 1 or 2, wherein each cord guide (18) is set to have a vertical dimension equal to or larger than a vertical dimension of the intermediate bar (24) to which the cord guide (18) is attached.   The cord guide (18) has a lifting / lowering cord insertion hole (18c) through which the lifting / lowering cord (16) is inserted in the vertical direction. The first taper surface (18d) toward the fabric gradually toward the upper surface and the surface on the opposite side to the lower fabric, toward the surface opposite to the fabric gradually toward the bottom The roman shade according to any one of claims 1 to 3, wherein a second tapered surface (18e) is formed.

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