JP2022000573A - Horizontal blind - Google Patents

Abstract

To provide a horizontal blind capable of improving light-blocking property and preventing tilting of a bottom rail.SOLUTION: A horizontal blind comprises a head box, a bottom rail, a plurality of slats arranged in an up-and-down direction of the bottom rail, and a first and a second up-and-down cords for supporting the bottom rail to be raised and lowered. The first up-and-down cord is provided at a position which is adjacent to one end in a longitudinal direction of the slat and close to one edge in a cross-sectional direction of the slat. The second up-and-down cord is provided at a position which is adjacent to the other end in the longitudinal direction of the slat and close to the other edge in the cross-sectional direction of the slat. The horizontal blind comprises at least one of the following configurations. (1) The first and the second up-and-down cords are each inserted into a first and a second insertion holes provided at the slat. (2) A pair of third up-and-down cords are provided, which are provided at the center in the longitudinal direction of the slat and face each other across the slat in the cross-sectional direction. (3) The first and the second up-and-down cords are inserted into a first and a second cutouts provided on one end and the other end of the slat, respectively.SELECTED DRAWING: Figure 1

Description

The present invention relates to a horizontal blind having a plurality of slats.

The horizontal blind includes a plurality of slats supported by the ladder cord and a plurality of elevating cords for raising and lowering the plurality of slats. The plurality of elevating cords are arranged, for example, in the longitudinal direction of the slats, at the center of the slats and at both ends of the slats. These elevating cords and ladder cords support a bottom rail located under the bottom slat. Then, the plurality of slats are moved up and down by operating the plurality of elevating cords, and the plurality of slats are rotated all at once by operating the ladder cord (see Patent Document 1).

Japanese Unexamined Patent Publication No. 2017-66800

In the configuration of Patent Document 1, the elevating cords arranged at both ends of the slats are inserted into the central insertion hole in the lateral direction of the slats, or are arranged at positions biased toward one edge in the lateral direction of the slats. ing. In such a configuration, light leakage through the insertion hole may increase, or the bottom rail may be easily tilted.

The present invention has been made in view of such circumstances, and provides a horizontal blind capable of improving the light-shielding property and suppressing the inclination of the bottom rail.

According to the present invention, the head box, the bottom rail, a plurality of slats, the first and second elevating cords are provided, and the first and second elevating cords are suspended from the head box and the bottom rail. The plurality of slats are arranged between the headbox and the bottom rail along the elevating direction of the bottom rail, and the first elevating cord is adjacent to one end of the slats in the longitudinal direction. The second elevating cord is provided at a position biased toward one edge side in the lateral direction of the slats, and the second elevating cord is located on the other edge side in the lateral direction of the slats at a position adjacent to the other end in the longitudinal direction of the slats. A horizontal blind provided at a position biased toward the ground and having at least one of the configurations (1) to (3).
(1) The first and second elevating cords are inserted into the first and second insertion holes provided in the slats, respectively.
(2) A pair of third elevating cords facing each other with the slats sandwiched in the lateral direction are provided, and the third elevating cords are provided at the center of the slats in the longitudinal direction.
(3) The first and second elevating cords are provided through the first and second notches provided at the one end and the other end of the slats, respectively.

According to the present invention, since the first elevating cord is provided at a position biased toward one edge of the slats and the second elevating cord is provided at a position deviated toward the other edge of the slats, the first and second elevating cords are provided. It is arranged point-symmetrically with respect to the center of gravity G of the slats or a position close to it. Therefore, even if a large number of slats are applied to the bottom rail when the bottom rail is raised, the bottom rail is prevented from tilting. Further, since the first and second elevating cords are arranged at positions biased to one edge and the other edge of the slat, respectively, the positions of the insertion holes or notches through which the first and second elevating cords are inserted are also one edge or the position of the notch. It will be placed in a position that is biased to the other edge, or neither the insertion hole nor the notch will be required. If the insertion hole or notch is placed in a position biased to one edge or the other edge, the vertically adjacent slats overlap each other when the slats are placed in a substantially vertical state, and the insertion hole or notch is at least partially shielded. Therefore, the light blocking effect can be improved.

Hereinafter, various embodiments of the present invention will be illustrated. The embodiments shown below can be combined with each other.
Preferably, the first and second elevating cords are provided at positions that are point-symmetrical with respect to the center of gravity of the slats.
Preferably, the slats include first and second projecting pieces, the first and second projecting pieces being provided so as to project in the lateral direction from one edge and the other edge of the slats, respectively.
Preferably, the configuration (1) is provided, and the first and second insertion holes are provided in the first and second projecting pieces, respectively.
Preferably, the first and second projecting pieces are formed by folding the first and second extension pieces provided by extending the slats in the longitudinal direction from one end and the other end of the slats, respectively.
Preferably, the configuration (1) is provided, and the slats include first and second folded portions in which the portions corresponding to the first and second insertion holes are folded, respectively.
Preferably, the first and second insertion holes are provided at positions adjacent to one end and the other end of the slats, respectively, and the first and second folded portions are folded toward the one end and the other end, respectively. It has been.
Preferably, the configuration (2) is provided, and the first and second elevating cords are inserted into the first and second notches provided in the slats, respectively.
Preferably, the first and second slat support cords for supporting the slat are provided, and the first slat support cord is separated from the first elevating cord on the longitudinal center side of the slat with respect to the first elevating cord. The second slat support cord is provided on the center side of the slat in the longitudinal direction with respect to the second elevating cord, away from the second elevating cord.
Preferably, the configuration (1) is provided.
Preferably, the configuration (2) is provided.
Preferably, the configuration (3) is provided.

According to another aspect of the present invention, the head box, the bottom rail, the plurality of slats, and the elevating cord are provided, and the elevating cord is suspended from the head box and the bottom rail can be raised and lowered. Supporting, the plurality of slats are arranged between the headbox and the bottom rail along the elevating direction of the bottom rail, the slats having a notch, the notch being the length of the slats. Provided at one end of the direction, the elevating cord is provided with a horizontal blind that is inserted into the notch.

According to still another aspect of the present invention, the head box, the bottom rail, the plurality of slats, and the elevating cord are provided, and the elevating cord is suspended from the head box and can elevate the bottom rail. The plurality of slats are arranged between the headbox and the bottom rail along the elevating direction of the bottom rail, and the slats are protruding pieces protruding from one edge of the slats in the lateral direction. A horizontal blind is provided.
Preferably, the elevating cord is inserted through an insertion hole or notch provided in the protrusion.
Preferably, the projecting piece is formed by folding an extension piece provided by extending the slats in the longitudinal direction from one end of the slats.

According to still another aspect of the present invention, the head box, the bottom rail, the plurality of slats, and the elevating cord are provided, and the elevating cord is suspended from the head box and can elevate the bottom rail. The plurality of slats are arranged between the headbox and the bottom rail along the elevating direction of the bottom rail, the slats having an insertion hole or a notch, and the slats being said. A horizontal blind is provided with a folded portion in which the site corresponding to the insertion hole or notch is folded back.
Preferably, the insertion hole or notch is provided at a position adjacent to one end of the slats in the longitudinal direction, and the folded portion is folded toward the one end.

It is a front view of the horizontal blind 10 of 1st Embodiment of this invention. It is a top view of the slats 12 of the horizontal blind 10 of FIG. FIG. 3A is an enlarged view of the vicinity of one end 12a of the slat 12 for explaining the process of forming the insertion hole 22a of the slat 12. FIG. 3B is an enlarged cross-sectional view taken along the line AA in FIG. 3A. FIG. 4A is an enlarged view of the vicinity of one end 12a of the slat 12 for explaining another step of forming the insertion hole 22a of the slat 12. FIG. 4B is an enlarged cross-sectional view taken along the line AA in FIG. 4A. In the fully closed state, a state in which a part of the insertion holes 22a and 22b is shielded by the slats of FIG. 2 adjacent to each other in the vertical direction is shown, FIG. 5A is a front view, and FIG. 5B is a right side view. In the fully closed state, the entire insertion holes 22a and 22b are shielded by the slats of FIG. 2 adjacent to each other in the vertical direction. FIG. 6A is a front view and FIG. 6B is a right side view. It is a top view of the slats 12 of the horizontal blind 10 of the 2nd Embodiment of this invention. It is a top view of the slats 12 of the horizontal blind 10 of the 3rd Embodiment of this invention. 9A and 9B are plan views in the vicinity of the other end 12b of the slat 12, showing the process of forming the protruding piece 12g. In the fully closed state, the insertion holes 22a and 22b are shielded by the slats of FIG. 8 adjacent to each other in the vertical direction. FIG. 10A is a front view and FIG. 10B is a right side view. It is a top view of the slats 12 of the horizontal blind 10 of the 4th Embodiment of this invention. In the fully closed state, the notches 23a and 23b are shielded by the slats of FIG. 11 adjacent to each other in the vertical direction. FIG. 12A is a front view and FIG. 12B is a right side view. It is a top view of the slats 12 of the horizontal blind 10 of the 5th Embodiment of this invention. It is a top view of the slats 12 of the horizontal blind 10 of the 6th Embodiment of this invention. It is a top view of the slats 12 of the horizontal blind 10 of the 7th Embodiment of this invention. It is a top view of the slats 12 of the horizontal blind 10 of the 8th Embodiment of this invention. It is a top view of the slats 12 of the horizontal blind 10 of the 9th Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Various features in the embodiments shown below can be combined with each other. In addition, the invention is independently established for each characteristic item.

1. 1. 1st Embodiment <Overall configuration of horizontal blind 10>
As shown in FIG. 1, the horizontal blind 10 of the first embodiment of the present invention includes a head box 11 attached to a mounting portion such as a ceiling, a window frame, and a curtain box, and a plurality of slats 12 for shielding solar radiation. ing. Further, the horizontal blind 10 has three ladder cords 13a to 13c that support a plurality of slats 12 so as to be tiltable, a bottom rail 14 located below the slats 12 in the lowermost stage, and a bottom rail at one end. It is provided with first to third elevating cords 15a to 15c that support 14. The elevating cord 15a and the ladder code 13a are arranged at positions adjacent to one end 12a in the longitudinal direction of the slats 12, and the elevating cord 15b and the ladder code 13b are arranged at positions adjacent to the other end 12b. An elevating cord 15c and a ladder cord 13c are arranged at the center of the slats 12 in the longitudinal direction. The elevating cord 15c is provided so that a pair of elevating cords 15c face each other with the slat 12 sandwiched in the lateral direction. The ladder codes 13a to 13c correspond to the "slat support code" of the present invention. The configuration of the "slat support cord" is not limited as long as it can support and rotate the slat 12, for example, it includes two warp threads separated from each other, and one warp thread is attached to one edge of the slat. It may be configured such that it is attached and the other warp is attached to the other edge of the slats.

The slats 12 are formed of a synthetic resin plate, a metal plate such as aluminum or stainless steel, and are formed in the shape of an elongated rectangular thin plate, and the upper surface portion has an arcuate surface. The slats 12 may be formed of a wooden board. The plurality of slats 12 are arranged along the elevating direction, which is the height direction of the horizontal blind 10, and are supported by the ladder cords 13a to 13c suspended from the head box 11 so as to be tilt-adjustable. The bottom rail 14 arranged below the bottom slat 12 has substantially the same length as the slat 12.

The bottom rail 14 functions as a weight member when the plurality of slats 12 are maintained in a lowered state, and is made of a metal material such as SECC. The bottom rail 14 has substantially the same length in the longitudinal direction and width in the lateral direction as the slats 12, and when the bottom rail 14 is pulled up, a plurality of slats 12 are stacked on the bottom rail 14. The support end of the tip of the ladder cords 13a to 13c is supported by the bottom rail 14. Further, the bottom rail 14 is supported by a support end at the tip of the elevating cords 15a to 15c pulled out from the head box 11, and is suspended from the head box 11 by the elevating cords 15a to 15c.

As shown in FIG. 2, in each of the plurality of slats 12, at positions adjacent to one end 12a and the other end 12b in the longitudinal direction of the slats 12, each of the rectangular insertion holes 22a having the long side in the lateral direction is located. , 22b are formed. Elevating cords 15a and 15b are inserted into the insertion holes 22a and 22b, respectively. The insertion holes 22a and 22b are provided at positions biased toward one edge 12c and the other edge 12d of the slats 12, respectively. The positions where the insertion holes 22a and 22b are formed are as close to both ends as possible, and the length from the insertion hole 22a to one end 12a and the length from the insertion hole 22b to the other end 12b are the ladder cords 13a to 13c. The portion beyond the insertion holes 22a and 22b is set to the extent that the portion beyond the insertion holes 22a and 22b does not bend due to its own weight. The insertion holes 22a and 22b are point-symmetrical with respect to the center of gravity G of the slats 12. Therefore, the elevating cords 15a and 15b are also point-symmetrical with respect to the center of gravity G. The center of gravity G is a position that is the center of the slats 12 in the longitudinal direction and the center in the lateral direction. According to such a configuration, the bottom rail 14 is less likely to be tilted as compared with the case where the elevating cords 15a and 15b are arranged unevenly on one edge side in the lateral direction of the slats 12.

Since the insertion holes 22a and 22b are provided at positions adjacent to one end 12a and the other end 12b, respectively, the strength of the slats 12 is not strong at the portion 12e closer to the one end 12a and the other end 12b than the insertion holes 22a and 22b, respectively. It may be enough. Therefore, in order to increase the strength of the slat 12 at the above-mentioned portion, it is preferable that the slat 12 includes a folded-back portion 22f in which the portion 22e corresponding to the insertion hole 22a is folded back, as shown in FIGS. 3A and 3B. As shown in FIG. 3A, the portion 22e is a portion surrounded by the cut line 22c and the folding line 22d. The folded line 22d corresponds to one long side of the insertion hole 22a, and the cut line 22c corresponds to the remaining three sides of the insertion hole 22a. By folding the portion 22e along the folded line 22d, the insertion hole 22a is formed and the folded portion 22f is formed. The folded portion 22f reinforces the portion 12e. Further, when the portion 22e is folded back, a curved portion 22g is formed along the folding line 22d. If the elevating cord 15a rubs against the peripheral edge of the insertion hole 22a, the elevating cord 15a may be worn, but the wear of the elevating cord 15a is suppressed by providing the bending portion 22g in the insertion hole 22a. The insertion hole 22b can also be formed by the same method, and in this case, a portion closer to the other end 12b than the insertion hole 22b is reinforced by the folded portion.

4A and 4B show another method of forming the insertion hole 22a. In this method, the folded line 22d is provided at a position corresponding to a pair of opposite long sides of the insertion hole 22a, and the cut line 22c is provided at a position corresponding to the remaining two sides and a pair of opposed folded lines 22d. It is provided in between. The portion 22e is bisected by the cut line 22c. By folding each portion 22e along the folded line 22d, folded portions 22f are formed on both the left and right sides of the insertion hole 22a to reinforce the slats 12. Further, since the curved portion 22g is formed along the two opposite long sides of the insertion hole 22a, the wear of the elevating cord 15a is further suppressed. The insertion hole 22b can also be formed by the same method.

At the center of the slat 12 in the longitudinal direction, an elevating cord 15c is arranged on one edge 12c and the other edge 12d of the slat 12 in the lateral direction. The slat 12 is not formed with an insertion hole necessary for inserting the elevating cord 15c. In the central portion of the slat 12 in the longitudinal direction, the above-mentioned insertion hole is not formed, so that high light-shielding property is ensured.

The horizontal blind 10 manually opens and closes the slats 12 and raises and lowers the bottom rail 14. Inside the head box 11, four raising and lowering cords 15a to 15c are provided by a guide member in one of the longitudinal directions of the head box 11. It is concentrated at the end of. The tilt pole 18a as an operation unit for raising and lowering the bottom rail 14 and the equalizer 18 provided at the tip of the tilt pole 18a are located inside the insertion holes 22a and 22b of the slats 12 on the central side in the longitudinal direction. There is. The elevating cords 15a to 15c are led out of the headbox 11 via a stopper (not shown) that prevents the slats 12 and the bottom rail 14 from falling due to their own weight in an integrated state, and are bound by the equalizer 18. .. The stopper is switched between a state in which the movement of the elevating cords 15a to 15c is blocked and a state in which the movement is allowed by the operation of the four elevating cords 15a to 15c.

When the equalizer 18 is pulled downward, the bottom rail 14 and the slat 12 can be raised, and by stopping the equalizer 18, the bottom rail 14 and the slat 12 can be stopped in the middle. At the time of ascending, the bottom rail 14 rises, and as the bottom rail 14 rises, a plurality of slats 12 are stacked on the bottom rail 14 in order from the position closest to the bottom rail 14. When lowering the slats 12, the equalizer 18 is slightly pulled downward and then loosened. If you want to stop in the middle, you can stop the descent of the bottom rail by pulling the equalizer 18 a little again. At the time of descent, the bottom rail 14 descends, and as the bottom rail 14 descends, each of the plurality of slats 12 also descends together. Further, by rotating the tilt pole 18a left and right, the slats 12 can be rotated to switch between a fully closed state and a fully open state.

The elevating cords 15a and 15b support the bottom rail 14 by inserting the support end at the tip into the mounting hole at the center of the bottom rail 14 in the lateral direction and locking the bottom rail 14 inside. The elevating cord 15c extends from the inside of the room and the outside of the room of the slats 12 along the elevating direction, and is composed of one string-shaped member that is inserted through the inside of the bottom rail 14 in the lateral direction. Then, in the elevating cord 15c, a part of one string-shaped member extends inside the room of the slat 12 along the elevating direction, and the other part extends outside the room of the slat 12 and inside the room. The extending elevating cord 15c and the elevating cord 15c located outside the room are located opposite each other with the slat 12 in between. By sandwiching the bottom rail 14 from both sides and lifting the elevating cord 15c, the elevating cord 15c can be elevated while suppressing the bottom rail 14 from tilting inside or outside the room. The elevating cord 15c may be composed of two string-shaped members, and the support end at the tip of each string-shaped member may be locked inside the bottom rail 14.

All the elevating cords 15a to 15c are string-shaped members such as round cords having a circular cross section, and are of the same thickness and strength over the entire length. The ends of the elevating cords 15a to 15c opposite to the bottom rail 14 are bound by the equalizer 18 via the head box 11. The elevating cords 15a to 15c are members for suspending the bottom rail 14 from the head box 11, and have strength that can withstand the weight of the bottom rail and the weight of the slats 12.

The ladder cords 13a to 13c are provided at positions adjacent to the elevating cords 15a to 15c, respectively. The ladder code 13a includes a pair of warp threads 13a1 and weft threads 13a2 provided between them. The ladder code 13b includes a pair of warp threads 13b1 and weft threads 13b2 provided between them. The ladder cord 13c includes a pair of warp threads 13c1, a weft thread 13c2 provided between them, and an annular portion 13c3 through which the elevating cord 15c is inserted. Each weft 13a2, 13b2, 13c2 is a single thread that supports the slats 12 from the lower side. May be supported.

The elevating cords 15a and 15b are woven into the weft threads 13a2 and 13b2, respectively. Specifically, the elevating cords 15a and 15b are located inside the weft threads 13a2 and 13b2 (on the central side in the longitudinal direction of the slats 12) with respect to the predetermined weft threads 13a2 and 13b2, and different predetermined weft threads 13a2 and 13b2. It is woven so as to be located on the outside (the end side in the longitudinal direction of the slats 12). That is, the elevating cords 15a and 15b are woven into the ladder cords 13a and 13b alternately from the inside to the outside and then from the outside to the inside with respect to the weft threads 13a2 and 13b2. Since the ladder cords 13a and 13b are located near both ends of the slats 12, the weft threads 13a2 and 13b2 may come off from the slats 12. Therefore, by knitting the two elevating cords 15a and 15b into the ladder cords 13a and 13b, the ends of the slats 12 in which the elevating cords 15a and 15b are inserted into the insertion holes 22a and 22b do not come off from the weft threads 13a and 13b2. I am doing it.

The annular portion 13c3 is an annular body formed by pulling out a yarn from the warp yarn 13c1 when the ladder cord 13c is a braided cord. The annular portion 13c3 is arranged in each of the warp threads 13c1 located inside the room and outside the room, and the elevating cord 15c located inside the room and outside the room is inserted. Further, a resin annular member (not shown) is attached to the annular portion 13c3 at the position closest to the head box 11 of the warp 13c1 corresponding to the elevating cord 15c. The annular member has a higher physical strength than the annular portion 13c3, and has a strength that does not break due to friction even if the elevating cord 15c repeatedly moves. Although the annular portion 13c3 has been described as an annular portion composed of threads, a resin-molded annular body may be integrally provided on the warp threads 13c1.

A holder 16 is attached to the bottom rail 14 at a position where the three ladder cords 13a to 13c hang down. The holder 16 fixes the pull-out position of the support end, which is the tip of the warp threads 13a1 to 13c1 of the ladder cords 13a to 13c, from the bottom rail 14. Specifically, the holder 16 fixes the support end so that the support end of the warp threads 13a1 to 13c1 is pulled out from the side edge portion of the bottom rail 14 in the lateral direction. Further, the holder 16 located at the center of the bottom rail 14 in the longitudinal direction has the elevating cord 15c so that the elevating cord 15c is pulled out from the center of the bottom rail 14 in the longitudinal direction of the opposite side edges in the lateral direction. Fix the support end.

<Action of horizontal blind 10>
Next, the operation of the horizontal blind 10 configured as described above will be described.
With the bottom rail 14 lowered as shown in FIG. 1, the tilt pole 18a is operated to rotate the slat 12, and the slat 12 is shown in FIGS. 5A and 5B or 6A and 6B. Can be fully closed (substantially vertical). In the embodiments of FIGS. 6A and 6B, the distance between the slats 12 adjacent to each other in the vertical direction is shorter than that of the embodiments of FIGS. 5A and 5B. In the present embodiment, the insertion holes 22a and 22b are arranged at positions biased toward one edge 12c and the other edge 12d, respectively. Therefore, when the slats 12 are fully closed, the vertically adjacent slats overlap each other and are inserted. The holes 22a, 22b are at least partially shielded, reducing the substantial opening area of the insertion holes 22a, 22b. In the embodiments of FIGS. 5A and 5B, the slats adjacent to each other in the vertical direction overlap each other and the insertion holes 22a and 22b are partially shielded. Overlapping, the entire insertion holes 22a and 22b are shielded. Further, in the form of FIGS. 6A and 6B, the entire insertion holes 22a and 22b are shielded by shortening the distance between the slats 12 adjacent to each other in the vertical direction, but the lengths of the insertion holes 22a and 22b are long. The entire insertion holes 22a and 22b may be shielded by shortening the length or shifting the insertion holes 22a and 22b to positions where they completely overlap with adjacent slats in the vertical direction.

When raising the slat 12 and the bottom rail 14, when the equalizer 18 is pulled down, the bottom rail 14 is raised so that a plurality of slat 12s are stacked on the bottom rail 14 in order from the position closest to the bottom rail 14. Further, when lowering the slats 12 and the bottom rail 14, if the equalizer 18 is slightly loosened downward, the bottom rail 14 is lowered, and as the bottom rail 14 is lowered, each of the plurality of slats 12 is also lowered together. ..

2. 2. Second Embodiment The second embodiment of the present invention will be described with reference to FIG. 7. This embodiment is similar to the first embodiment, and the main difference is the difference in the arrangement of the ladder codes 13a and 13b.

In the present embodiment, the ladder cords 13a and 13b are provided on the central side of the slats 12 in the longitudinal direction with respect to the insertion holes 22a and 22b, respectively, apart from the elevating cords 15a and 15b, respectively. If the ladder cords 13a and 13b are arranged close to one end 12a and the other end 12b of the slats 12, the weft threads 13a2 and 13b2 of the ladder cords 13a and 13b may come off from the one end 12a and the other end 12b. By arranging the ladder cords 13a and 13b as in the present embodiment, it is possible to prevent the weft threads 13a2 and 13b2 from falling off.

3. 3. Third Embodiment The third embodiment of the present invention will be described with reference to FIGS. 8 to 10. This embodiment is similar to the second embodiment, and the main difference is that the protruding pieces 12f and 12g are provided.

In the present embodiment, the slats 12 are provided with projecting pieces 12f and 12g so as to project in the lateral direction from each of the one edge 12c and the other edge 12d, and the insertion holes 22a and 22b are the projecting pieces, respectively. It is provided in 12f and 12g. According to such a configuration, as shown in FIGS. 10A and 10B, the insertion holes 22a and 22b are easily shielded by the slats 12 adjacent to the upper side or the lower side, so that the light shielding property is improved.

By the way, the slats 12 are usually formed by cutting a raw material having the same width as the slats 12 and longer than the slats 12 to a desired length. Therefore, it is not possible to punch out the raw material to form the protruding pieces 12f and 12g. Using a wider range of raw materials leads to increased costs.

Therefore, it is preferable to form the protruding pieces 12f and 12g by the following method. First, when cutting the raw material, as shown in FIG. 9A, an extension piece 12h in which the slat 12 is extended in the longitudinal direction of the slat 12 is formed from the other end 12b of the slat 12. An insertion hole 22b is formed in the extension piece 12h. Next, as shown in FIGS. 9A and 9B, the extension piece 12h is folded along the folding line 12i to form the folding piece 12j. Next, the protruding piece 12g is formed by folding the folding piece 12j along the other end 12b of the slats 12. The protruding piece 12f can also be formed by the same method. According to such a method, the protruding pieces 12f and 12g can be formed without using a special raw material.

The protruding pieces 12f and 12g may be provided with a notch instead of the insertion hole, and the elevating cord may be inserted through the notch. The timing of forming the insertion hole or the notch is arbitrary, and may be formed during or after the above-mentioned folding process.

Further, neither the insertion hole nor the notch may be provided in the protruding pieces 12f and 12g. In this case, lateral displacement of the slats 12 can be prevented by arranging the elevating cords 15a and 15b adjacent to the protruding pieces 12f and 12g, respectively.

4. Fourth Embodiment The fourth embodiment of the present invention will be described with reference to FIGS. 11 and 12. This embodiment is similar to the first embodiment, and the main difference is that notches 23a and 23b are provided instead of the insertion holes 22a and 22b.

The notch 23a is provided on one edge 12c of the slat 12 at a position adjacent to one end 12a of the slat 12. The notch 23b is provided on the other edge 12d of the slat 12 at a position adjacent to the other end 12b of the slat 12. The elevating cords 15a and 15b are inserted into the notches 23a and 23b, respectively. The ladder cords 13a and 13b each have a pair of weft threads 13a2 and 13b2. The pair of weft threads 13a2 are crossed to form an intersection 13a4, an elevating cord 15a is inserted in a region between the intersection 13a4 and one warp 13a1, and a region between the intersection 13a4 and the other warp 13a1. The slats 12 are inserted into the. The pair of weft threads 13b2 are crossed to form an intersection 13b4, an elevating cord 15b is inserted in a region between the intersection 13b4 and one warp 13b1, and a region between the intersection 13b4 and the other warp 13b1. The slats 12 are inserted into the.

According to such a configuration, as shown in FIGS. 12A and 12B, the notches 23a and 23b are easily shielded by the slats 12 adjacent to the upper side or the lower side, so that the light shielding property is improved.

5. Fifth Embodiment The fifth embodiment of the present invention will be described with reference to FIG. This embodiment is similar to the fourth embodiment, and the main difference is the difference in the shape of the notches 23a and 23b.

In the present embodiment, the notches 23a and 23b are provided with tapered surfaces 23a1, 23b1, respectively. The tapered surfaces 23a1, 23b1 are provided on the sides of the notches 23a and 23b, respectively, near the center in the longitudinal direction of the slat 12. According to such a configuration, even when the elevating cords 15a and 15b are detached from the notches 23a and 23b, they can easily return to the notches 23a and 23b along the tapered surfaces 23a1 and 23b1.

6. Sixth Embodiment The sixth embodiment of the present invention will be described with reference to FIG. This embodiment is similar to the fifth embodiment, and the main difference is the difference in the shape of the notches 23a and 23b.

In the present embodiment, the tapered surfaces 23a1, 23b1 are provided on the sides of the notches 23a and 23b near one end 12a and the other end 12b in the longitudinal direction of the slat 12, respectively. According to such a configuration, the elevating cords 15a and 15b and the ladder cords 13a and 13b can be easily removed from the slats 12.

7. Seventh Embodiment The seventh embodiment of the present invention will be described with reference to FIG. This embodiment is similar to the fourth embodiment, and the main difference is the arrangement of the notches 23a and 23b and the ladder codes 13a and 13b.

In the present embodiment, the notches 23a and 23b are provided at one end 12a and the other end 12b of the slats 12, respectively. The notch 23a is provided at a position biased toward the one edge 12c side. The notch 23b is provided at a position biased toward the other edge 12d. According to such a configuration, since the notches 23a and 23b are provided at the end portions of the slats 12, light leakage from the notches 23a and 23b is inconspicuous. Further, since the elevating cords 15a and 15b sandwich the slats 12 from both sides in the longitudinal direction of the slats 12, lateral displacement of the slats 12 is suppressed.

Further, the ladder cords 13a and 13b are provided at positions separated from the elevating cords 15a and 15b and separated from the one end 12a and the other end 12b, respectively, as in the second embodiment. According to such a configuration, the weft threads 13a2 and 13b2 of the ladder cords 13a and 13b are unlikely to fall off from the slats 12.

8. Eighth Embodiment The eighth embodiment of the present invention will be described with reference to FIG. This embodiment is similar to the first embodiment, and the main difference is that the elevating cord 15c is not provided.

Also in this embodiment, the effect of improving the light blocking effect is exhibited as in the first embodiment. Further, by arranging the elevating cords 15a and 15b point-symmetrically with respect to the center of gravity G, the slat 12 can be stably moved up and down.

9. Ninth Embodiment The ninth embodiment of the present invention will be described with reference to FIG. The present embodiment is similar to the eighth embodiment, and the main difference is that an additional lifting cord is provided at an arbitrary position.

In this embodiment, an additional elevating cord is provided in order to suppress the inclination of the bottom rail 14 and the slats 12. The position of the additional elevating cord is arbitrary and can be arranged, for example, at a position as shown at points A to E in FIG. The number of additional lifting cords may be one or two or more. According to such a configuration, since the bottom rail 14 and the slat 12 are supported by three or more elevating cords, the inclination of the bottom rail 14 and the slat 12 is suppressed.

Further, when the elevating cords 15a and 15b are arranged point-symmetrically with respect to the center of gravity G, the slat 12 is bisected into a region X and a region Y by a straight line L connecting the elevating cords 15a and 15b, and the region X and the region Y are bisected. Since the weight of Y is the same, the inclination of the bottom rail 14 and the slats 12 is suppressed regardless of the position of the additional elevating cord.

7. Other Embodiments-The lifting code 15c can be omitted.
The elevating cords 15a and 15b do not have to be inserted into either the insertion holes 22a or 22b or the notches 23a or 23b.
-The number of lifting cords 15c may be one. In this case, an insertion hole may be provided in the center of the slats 12 in the lateral direction so that the elevating cord 15c can be inserted.
The elevating cords 15a and 15b may be point-symmetrical with respect to a position other than the center of gravity G.
-The shape of the insertion hole or notch does not have to be point symmetric.
-One of the elevating cords 15a and 15b may be inserted into the insertion hole, and the other may be inserted into the notch.
-It is not necessary to insert one of the elevating cords 15a and 15b into the insertion hole or the notch and not to insert the other into either the insertion hole or the notch.
-The method for forming an insertion hole described in the first embodiment can also be applied to the formation of a notch.

8. Various viewpoints of the present invention-In one aspect, the present invention is a horizontal blind in which the elevating cord 15a is provided at a position biased toward one edge 12c and the elevating cord 15b is provided at a position biased toward the other edge 15d. It can be grasped as 10.
From another point of view, the present invention can be grasped as a method of forming the insertion hole 22a by the method shown in FIG. 3 or FIG. 4, and the slats having the folded-back portion 22f formed by the method shown in FIG. 3 or FIG. It can be grasped as a 12 or a horizontal blind 10 having such a slats 12.
-From another point of view, the present invention can be grasped as a slat 12 provided with the projecting piece 12 g shown in FIG. 8, or a horizontal blind 10 having such a slat 12.
-From another point of view, the present invention can be grasped as a method for forming a protruding piece 12 g by the method shown in FIG.
-From another viewpoint, as shown in FIG. 15, the present invention can be grasped as a slat 12 having a notch 23a at one end 12a of the slat 12, or a horizontal blind 10 having such a slat 12.

10: Horizontal blind 11: Headbox 12: Slat 12a: One end 12b: Other end 12c: One edge 12d: Other edge 12e: Part 12f: Projecting piece 12g: Projecting piece 12h: Extension piece 12i: Folding line 12j: Folding piece 13a : First rudder code 13a1: Warp 13a2: Weft 13a4: Crossing 13b: Second rudder code 13b1: Warp 13b2: Weft 13b4: Crossing 13c: Third rudder code 13c1: Warp 13c2: Weft 13c3: Circular portion 14: Bottom Rail 15a: 1st elevating cord 15b: 2nd elevating cord 15c: 3rd elevating cord 16: Holder 18: Equalizer 18a: Tilt pole 22a: Insertion hole 22b: Insertion hole 22c: Cut line 22d: Folding line 22e: Part 22f: Folded portion 22g: Curved portion 23a: Notch 23a1: Tapered surface 23b: Notch 23b1: Tapered surface G: Center of gravity

Claims (18)

Equipped with a headbox, bottom rails, multiple slats, first and second lift cords,
The first and second elevating cords are suspended from the head box and support the bottom rail so as to be elevated.
The plurality of slats are arranged between the headbox and the bottom rail along the elevating direction of the bottom rail.
The first elevating cord is provided at a position adjacent to one end of the slats in the longitudinal direction and at a position biased toward one edge in the lateral direction of the slats.
The second elevating cord is provided at a position adjacent to the other end of the slats in the longitudinal direction and at a position biased toward the other edge side in the lateral direction of the slats.
A horizontal blind comprising at least one of the configurations (1) to (3).
(1) The first and second elevating cords are inserted into the first and second insertion holes provided in the slats, respectively.
(2) A pair of third elevating cords facing each other with the slats sandwiched in the lateral direction are provided, and the third elevating cords are provided at the center of the slats in the longitudinal direction.
(3) The first and second elevating cords are inserted into the first and second notches provided at the one end and the other end of the slats, respectively. The horizontal blind according to claim 1, wherein the first and second elevating cords are provided at positions symmetrical with respect to the center of gravity of the slats. The slats include first and second overhangs.
The horizontal blind according to claim 1 or 2, wherein the first and second projecting pieces are provided so as to project from one edge and the other edge of the slats in the lateral direction, respectively. The configuration (1) is provided.
The horizontal blind according to claim 3, wherein the first and second insertion holes are provided in the first and second projecting pieces, respectively. 3. The first and second projecting pieces are formed by folding the first and second extension pieces provided by extending the slats in the longitudinal direction from one end and the other end of the slats, respectively. Or the horizontal blind according to claim 4. The configuration (1) is provided.
The horizontal blind according to any one of claims 1 to 5, wherein the slats include first and second folded portions in which portions corresponding to the first and second insertion holes are folded, respectively. The first and second insertion holes are provided at positions adjacent to one end and the other end of the slats, respectively.
The horizontal blind according to claim 6, wherein the first and second folded portions are folded toward one end and the other end, respectively. The configuration (2) is provided.
The horizontal blind according to claim 1 or 2, wherein the first and second elevating cords are inserted into the first and second notches provided in the slats, respectively. A first and second slat support cord for supporting the slat is provided.
The first slat support cord is provided on the central side in the longitudinal direction of the slat with respect to the first elevating cord, away from the first elevating cord.
The horizontal type according to any one of claims 1 to 8, wherein the second slat support cord is provided on the center side in the longitudinal direction of the slat with respect to the second elevating cord so as to be separated from the second elevating cord. blind. The horizontal blind according to claim 1, comprising the configuration (1). The horizontal blind according to claim 1, comprising the configuration (2). The horizontal blind according to claim 1, comprising the configuration (3). Equipped with headbox, bottom rails, multiple slats, and lifting cords,
The elevating cord is suspended from the headbox and supports the bottom rail so as to be elevated.
The plurality of slats are arranged between the headbox and the bottom rail along the elevating direction of the bottom rail.
The slats have a notch and
The notch is provided at one end of the slats in the longitudinal direction.
The elevating cord is a horizontal blind inserted into the notch. Equipped with headbox, bottom rails, multiple slats, and lifting cords,
The elevating cord is suspended from the headbox and supports the bottom rail so as to be elevated.
The plurality of slats are arranged between the headbox and the bottom rail along the elevating direction of the bottom rail.
The slats are horizontal blinds comprising protruding pieces protruding from one lateral edge of the slats. The horizontal blind according to claim 14, wherein the elevating cord is inserted through an insertion hole or a notch provided in the projecting piece. The horizontal blind according to claim 14 or 15, wherein the projecting piece is formed by folding an extension piece provided by extending the slats from one end of the slats in the longitudinal direction. Equipped with headbox, bottom rails, multiple slats, and lifting cords,
The elevating cord is suspended from the headbox and supports the bottom rail so as to be elevated.
The plurality of slats are arranged between the headbox and the bottom rail along the elevating direction of the bottom rail.
The slats have insertion holes or notches and
The slats are horizontal blinds that include a folded portion in which the site corresponding to the insertion hole or notch is folded back. The insertion hole or notch is provided at a position adjacent to one end of the slats in the longitudinal direction.
The horizontal blind according to claim 17, wherein the folded portion is folded toward one end.

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