JP2018193781A - Horizontal blind - Google Patents

Abstract

An object of the present invention is to provide a horizontal blind capable of improving the light shielding property.
A horizontal blind 10 according to the present invention includes a head box 11, a ladder cord 13A and a lifting / lowering cord 14A suspended from a longitudinal end side of the head box 11, and a ladder cord 13A at the longitudinal end side. A plurality of slats 12 supported by the slats 12. An insertion hole 21 for inserting the elevating cord 14 </ b> A is formed on the longitudinal end side of the slat 12, and the insertion hole 21 is longer than the ladder cord 13 </ b> A. It is located near the end of the direction.
[Selection] Figure 3

Description

  The present invention relates to a horizontal blind.

The horizontal blind includes a head box attached to a window frame, a ladder cord suspended from the head box, a plurality of slats supported by the ladder cord and arranged in a vertical direction, and a lifting cord for raising and lowering the slats. I have.
In such a horizontal blind, the number of ladder cords is set according to the length of the slat in the longitudinal direction. For example, when the length of the slat is short, the ladder cord is only two first ladder cords that support both sides in the longitudinal direction of the slat. On the other hand, when the length of the slat is long, in addition to the two first ladder cords described above, the ladder cord requires one or more second ladder cords that support the middle portion in the longitudinal direction of the slat. Become.

By the way, if the first ladder cord is designed to support the longitudinal end portion of the slat, the first ladder cord and the second ladder cord (or the other first ladder cord) are greatly separated from each other. As a result, an intermediate portion interposed between the first ladder cord and the second ladder cord in the slat becomes long, and the intermediate portion may be bent by its own weight.
On the other hand, if the first ladder cord supports a portion of the slat that is far away from the longitudinal end inward, the protruding portion that protrudes outward in the longitudinal direction from the first ladder cord becomes longer in the slat, and the protruding portion is self-weighted. There is a risk of bending.
From the above, the first ladder cord is designed so as to support, for example, a portion slightly inward from the longitudinal end of the slat and to prevent bending at the intermediate portion and the protruding portion of the slat.

Also, a plurality of lifting cords in the horizontal blind are provided in the longitudinal direction of the head box.
For example, in the horizontal blind of Patent Document 1 below, a first lifting / lowering cord is provided on the longitudinal end of the head box, and the first lifting / lowering cord is inserted into an insertion hole on the longitudinal end of the slat. .
Here, the insertion hole of Patent Document 1 below is designed to overlap with the weft of the first ladder cord. Moreover, the raising / lowering cord is knitted so that the inner side and the outer side of the weft of each step may pass alternately. Thereby, the slat penetrated by the lifting / lowering cord is regulated so as not to move in the longitudinal direction.

JP 2017-66800 A

Since the insertion hole of Patent Document 1 overlaps with the weft thread of the first ladder cord, the insertion hole is separated from the longitudinal end of the slat. For this reason, it is difficult for the light-shielding range that is easily formed on the end side in the longitudinal direction of the slat and the insertion hole to overlap.
Moreover, the insertion hole of the said patent document 1 is located in the center part of the transversal direction of a slat. Therefore, even if it is in a light-shielded state (a state in which the slat angle is adjusted so that the short direction of the slat faces the vertical direction), the upper or lower slat and the insertion hole are difficult to overlap.
From the above, light is likely to leak from the insertion hole, and an improvement in light shielding properties is desired.

  Therefore, the present invention is an invention created in view of the above-described background, and an object thereof is to provide a horizontal blind capable of improving the light shielding property.

  In order to solve the above problems, a horizontal blind according to a first aspect of the present invention includes a head box, a ladder cord and a lifting cord suspended from an end side in the longitudinal direction of the head box, and an end side in the longitudinal direction. A plurality of slats supported by the ladder cord, and an insertion hole for inserting the elevating cord is formed on an end side in the longitudinal direction of the slat, and the insertion hole is more than the ladder cord. It is located near the end in the longitudinal direction.

  According to the said structure, since an insertion hole tends to overlap with a light-shielding range, it becomes difficult to leak light from an insertion hole, and light-shielding property improves.

  In the above structure, the slat is preferably provided with ladder code holding means for holding the ladder code.

  According to the said structure, it can suppress that a slat falls from a ladder cord.

  In the structure, the ladder cord and the insertion hole are preferably separated from each other in the longitudinal direction of the slat.

  According to the said structure, it can suppress that a slat falls from a ladder cord.

  In the above structure, the insertion hole is preferably located closer to the end than the central portion of the slat in the short direction.

  According to the said structure, when it will be in the light-shielding state, an insertion hole overlaps with the upper or lower slat. Therefore, the range in which light leaks from the insertion hole is reduced, and the light shielding property is further improved.

  In order to solve the above-mentioned problem, a horizontal blind according to a second aspect of the present invention includes a head box, a ladder cord and a lifting cord suspended from a longitudinal end side of the head box, and a longitudinal end side. A plurality of slats supported by the ladder cord, and at least one of both lateral ends of the slats is provided with a notch positioned near the longitudinal end of the slats, and the ladder The warp of the cord is disposed in the notch, and the elevating cord is disposed in the notch or outside the end portion in the short direction of the slat.

According to the said structure, since the insertion hole is not formed, the light leak through an insertion hole does not arise. Moreover, when a slat will be in the light-shielding state, a notch will overlap with the slat arrange | positioned at the upper side or the lower side. Furthermore, the notch tends to overlap with the light shielding range. Therefore, the range in which light leaks from the notch is reduced, and the light shielding property is improved.
Further, even when a load that moves the slat in the longitudinal direction is applied, the first ladder cord in the notch (or the case where both the first ladder cord and the first lifting cord are accommodated in the notch). Is locked to the first ladder cord and the first lifting cord. For this reason, the movement of the longitudinal direction by a slat is controlled and it is suppressed that a slat falls from a 1st ladder cord.

  In the structure, the slat is formed with a pair of protrusions protruding in the thickness direction and spaced apart from each other in the longitudinal direction of the slat, and the weft thread of the ladder cord is disposed between the pair of protrusions. Is preferred.

  According to the above configuration, even if a load is applied that causes the slats to move in the longitudinal direction, the pair of protrusions engage with the weft threads to restrict the movement of the slats in the longitudinal direction, and the slats fall off the first ladder cord. Is suppressed.

  ADVANTAGE OF THE INVENTION According to this invention, the horizontal blind which can aim at the improvement of light-shielding property can be provided.

It is the front view which looked at the horizontal blind of a 1st embodiment from the room inner side. (A) is the IIA-IIA arrow directional cross-sectional view of FIG. 1, (b) is the IIB-IIB arrow directional cross-sectional view of FIG. (A) is a top view of the slat of 1st Embodiment, (b) is a top view which shows the state which the front warp moved to the right side, (c) is the front and back warp moving to the right side It is a top view which shows the state which carried out. It is a top view of the slat of the 1st modification of 1st Embodiment. It is a front view of a plurality of slats of a shielding state in the 1st modification of a 1st embodiment. (A) is a top view of the slat of the 2nd modification of 1st Embodiment, (b) is a top view of the slat of the 3rd modification of 1st Embodiment, (c) is 1st Embodiment. It is a top view of the slat of the 4th modification of. It is a top view of the slat of the 5th modification of 1st Embodiment. It is a top view of the slat of 2nd Embodiment. It is the perspective view which looked at a part of slat of the modification of 2nd Embodiment.

  Next, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
As shown in FIG. 1, the horizontal blind 10 includes a head box 11, a plurality of slats 12 disposed below the head box 11, a ladder cord 13 and a lift cord 14 suspended from the head box 11, and a ladder. A bottom rail 15 attached to the lower ends of the cord 13 and the lifting cord 14.

In the following description, the right hand side is referred to as the right side when the horizontal blind 10 is viewed from the indoor side, and the left hand side is referred to as the left side. With respect to the front-rear direction, with the horizontal blind 10 as a reference, the indoor side is referred to as the front side, and the outdoor side is referred to as the rear side.
FIG. 1 shows a state in which the angle of the slat 12 is horizontal. Hereinafter, the case where the angle of the slat 12 is in a horizontal state will be described as a reference.

(Slat)
The slat 12 is a thin plate-like component that is long in the left-right direction and short in the front-rear direction, and is made of a metal plate such as aluminum, a synthetic resin plate, or a wooden plate.
As shown in FIG. 2, the slat 12 is formed in an arc shape with a center portion in the front-rear direction protruding upward from the front end 12 a and the rear end 12 b.
As shown in FIG. 3A, notches 20 and insertion holes 21 are formed on both sides of the slat 12 in the left-right direction. The details of the notch 20 and the insertion hole 21 will be described later.

(Ladder code)
The ladder cord 13 is for supporting each slat 12 so that the tilt adjustment is possible.
As shown in FIG. 1, the ladder cord 13 includes two first ladder cords 13 </ b> A provided on both sides in the left-right direction of the head box 11 and a second ladder cord provided in the center portion in the left-right direction of the head box 11. 13B.
For this reason, as for each slat 12 of this embodiment, the both sides of the left-right direction are supported by the 1st ladder cord 13A, and the center part of the left-right direction is supported by the 2nd ladder cord 13B.
The portion of the slat 12 that is supported by the first ladder cord 13A is, for example, 30 mm away from the right end 12c or the left end 12d, and is closer to the right end 12c or the left end 12d than the conventional one.
In the present embodiment, one second ladder cord 13B is provided, but the present invention is not limited to this. For example, when the length of the slat 12 in the left-right direction is long, two or more second ladder cords 13B may be provided, or when the length of the slat 12 in the left-right direction is short, the second ladder The code 13B may not be provided.

As shown in FIG. 2, each of the first ladder cord 13A and the second ladder cord 13B extends between a pair of warp yarns 13a, 13a extending downward from the lower surface 11a of the head box 11 and the warp yarns 13a, 13a. An upper weft thread 13b and a lower weft thread 13c.
The upper weft thread 13b and the lower weft thread 13c are integrally formed into a ring shape, and the slats 12 are inserted between the upper weft thread 13b and the lower weft thread 13c.

  The lower end of the warp 13 a is attached to a holder 16 provided on the bottom rail 15. On the other hand, the upper side of the warp 13 a is attached to a tilt drum 30 provided in the head box 11. In FIG. 1, only the tilt drum 30 corresponding to the first ladder code 13A on the right side is shown.

The tilt drum 30 is rotatably installed in the head box 11, and the rotation axis faces the longitudinal direction (left-right direction) of the head box 11.
The head box 11 is provided with a tilt pole 31 that can be rotated, and a tilt shaft 32 that transmits a driving force generated by the rotation of the tilt pole 31 to the tilt drum 30.
The tilt shaft 32 extends in the left-right direction in the head box 11 to connect the tilt drums 30, and transmits the driving force by the tilt pole 31 to each tilt drum 30.
Therefore, when the tilt pole 31 is rotated, each tilt drum 30 is rotated in the same direction, and one warp 13a of the pair of warps 13a, 13a is pulled up, and the other warp 13a is pulled down. As a result, the upper weft 13b and the lower weft 13c are inclined, and the angle of the slat 12 is changed.

(Elevating cord)
As shown in FIG. 1, the elevating cord 14 is for elevating a plurality of slats 12.
The lifting / lowering cord 14 includes two first lifting / lowering cords 14 </ b> A provided on both sides of the head box 11 in the left-right direction and two second lifting / lowering cords 14 </ b> B provided at the center in the left-right direction of the head box 11. ing.

(First lifting code)
As shown in FIG. 2A, the first lifting / lowering cord 14 </ b> A hangs from an opening (not shown) formed in the lower surface 11 a of the head box 11.
As shown in FIG. 3A, the first lifting / lowering cord 14 </ b> A is inserted into the insertion hole 21 of the slat 12. The lower end of the first lifting / lowering cord 14 </ b> A is attached to the bottom rail 15.
An opening (not shown) on the lower surface 11 a of the head box 11 corresponds to the insertion hole 21 of the slat 12. Therefore, the first lifting / lowering cord 14 </ b> A extends straight downward from the opening on the lower surface of the head box 11 and penetrates the insertion hole 21 without contacting the edge of the insertion hole 21.

(Second lifting code)
As shown in FIG. 2B, the second lifting / lowering cord 14 </ b> B hangs from an opening (not shown) formed in the front surface 11 b and the rear surface 11 c of the head box 11.
Note that openings (not shown) formed in the front surface 11 b and the rear surface 11 c of the head box 11 are covered with a head cover 34. Therefore, the opening (not shown) formed in the front surface 11b and the rear surface 11c in the head box 11 is hidden by the head cover 34, and the design is improved.

  As shown in FIG. 3A, the second lifting / lowering cord 14B is inserted between the upper weft 13b and the lower weft 13c of the second ladder cord 13B, and the lower end thereof is attached to the bottom rail 15. For this reason, when it sees from the room, the 2nd raising / lowering cord 14B and the 2nd ladder cord 13B overlap, and design nature improves.

As shown in FIG. 1, portions of the first lifting / lowering cord 14A and the second lifting / lowering cord 14B arranged in the head box 11 are turned by a guide member 11d in the head box 11 and tilted via a stopper (not shown). It extends toward the pole 31.
Further, the first lifting / lowering cord 14A and the second lifting / lowering cord 14B extending toward the tilt pole 31 are inserted into the tilt pole 31 in a bundled state as indicated by a broken line 14D in FIG. It is attached to the operation unit 33 on the side.
And if the operation part 33 is largely pulled down, the 1st raising / lowering cord 14A and the 2nd raising / lowering cord 14B will be pulled, and the bottom rail 15 will raise. Further, as the bottom rail 15 rises, the slats 12 positioned on the lower side of the plurality of slats 12 are sequentially stacked on the upper surface of the bottom rail 15 and rise together with the bottom rail 15.
On the other hand, when the operation unit 33 is slightly pulled downward, a stopper (not shown) is released, and the bottom rail 15 can be lowered by its own weight.

(Notch)
As shown in FIG. 3A, the notch 20 is formed by notching the rear end 12b of the slat 12 into a concave shape.
The notch 20 is formed at a position 30 mm away from the right end 12c or the left end 12d so as to correspond to the warp yarn 13a of the first ladder cord 13A, and is located closer to the right end 12c or the left end 12d than the conventional notch. For this reason, the notch 20 tends to overlap with the light shielding range formed on the right end 12c side or the left end 12d side of the slat 12.

In the notch 20, the warp yarn 13a on the rear side of the first ladder cord 13A is accommodated. According to this, even if a load in the left-right direction acts on the first ladder cord 13A, the rear warp thread 13a is locked to the notch 20, and the movement of the first ladder cord 13A in the left-right direction is restricted. .
The notch 20 is not formed in the front end 12a of the slat 12. For this reason, as shown in FIG. 3B, the front warp 13a of the first ladder cord 13A may swing (move) in the left-right direction around the back warp 13a (FIG. 3B). (See broken lines L1, L2).

The notch 20 is formed at a position 30 mm away from the right end 12 c or the left end 12 d of the slat 12. Therefore, as shown in FIG. 3B, even if the front warp 13a of the first ladder cord 13A moves to the right side, the first ladder does not move to the right side from the right end 12c of the slat 12. It is designed so that the slat 12 does not fall off from the cord 13A (see the broken line L2 in FIG. 3B).
Whether the front warp 13a of the first ladder cord 13A moves outward from the right end 12c of the slat 12 depends on the length of the slat 12 in the front-rear direction, the length of the upper weft 13b, and the lower weft 13c. Is determined by various factors. Therefore, in the present invention, the distance between the notch 20 and the right end 12c (or the left end 12d) is not limited to 30 mm described in the embodiment.

  Moreover, since the notch 20 is formed in the rear end 12b of the slat 12, when the angle of the slat 12 is horizontal, the notch 20 is positioned on the outdoor side. Therefore, the notch 20 is hardly visually recognized from the indoor side, and the design is improved.

(Through hole)
The insertion hole 21 is for inserting the first lifting / lowering cord 14A.
According to the insertion hole 21, when a load in the left-right direction acts on the slat 12, the slat 12 is difficult to move in the left-right direction because it is locked to the first elevating cord 14 </ b> A.
The insertion hole 21 is formed long in the front-rear direction with reference to the central part in the front-rear direction of the slat 12.
The insertion hole 21 is formed larger than the diameter of the first lifting / lowering cord 14A. Therefore, the state where the first lifting / lowering cord 14 </ b> A does not contact the edge of the insertion hole 21 can be secured.
The insertion hole 21 is located on the outer side in the left-right direction with respect to the notch 20, and is very close to the right end 12c or the left end 12d of the slat 12, and thus easily overlaps the light shielding range. For this reason, it becomes difficult for light to leak from the insertion hole 21, and light-shielding property improves.

The notch 20 (first ladder cord 13A) and the insertion hole 21 are spaced apart in the left-right direction. According to this, as shown in FIG. 3C, the warp 13a on the rear side of the first ladder cord 13A is detached from the notch 20, and each of the warps 13a, 13a moves toward the right end 12c of the slat 12. Even so, it is difficult to reach the right end 12 c of the slat 12. Even if the first ladder cord 13A comes close to the right end 12c of the slat 12, the first ladder cord 13A is locked to the first elevating cord 14A (see the broken line L3 in FIG. 3B).
From the above, the first ladder cord 13A is less likely to move outward in the left-right direction than the right end 12c or the left end 12d of the slat 12, and the slat 12 is prevented from dropping from the first ladder cord 13A.

  The first embodiment has been described above. Next, a modification of the first embodiment will be described.

As shown in FIGS. 4 and 5, the insertion hole 21 </ b> A of the modified example is formed near the rear side (outside of the room) rather than the central portion of the slat 12 in the front-rear direction.
As shown in FIG. 5, according to the insertion hole 21A, when the angle of the slat 12 is changed to be in a light-shielded state, the upper slat 12 is disposed on the front side of the insertion hole 21 (or the lower slat 12 is A portion of the insertion hole 21 overlaps the slat 12. Therefore, the range in which light leaks from the insertion hole 21 is reduced, and the light shielding property is improved.
Moreover, since the insertion hole 21A of the modified example is located on the outer side in the left-right direction with respect to the notch 20 similarly to the first embodiment, the insertion hole 21A is easily overlapped with the light shielding range.

In addition, as shown in FIG. 4, according to the modification, the insertion hole 21 </ b> A is closer to the rear side of the slat 12, so the first lifting / lowering cord 14 </ b> A inserted into the insertion hole 21 </ b> A is also closer to the rear side. . For this reason, the first lifting / lowering cord 14A supports only the rear side of the bottom rail 15, and the bottom rail 15 may be tilted back and forth.
However, one of the pair of second elevating cords 14 </ b> B is disposed on the front side of the slat 12, and the other is disposed on the rear side of the slat 12, and supports the front and rear sides of the bottom rail 15. Therefore, the horizontal state of the bottom rail 15 can be maintained.

Although the first embodiment and the modifications thereof have been described above, the present invention is not limited to the above-described example.
For example, when the first ladder cord 13A supports the right end 12c or the left end 12d of the slat 12 as compared with the conventional one as in the embodiment, the insertion holes 21 and 21A are formed at the same position as the first ladder cord 13A. May be. Also in this case, the insertion holes 21 and 21A are easily overlapped with the light shielding range, and the light shielding property is improved.
Further, the weft of the present invention may be composed only of the lower weft 13c.

In the first embodiment, the notch 20 is formed in the slat 12. However, in the present invention, the notch 20 may not be formed.
On the other hand, when the notch 20 is formed, it may be formed at the front end 12a of the slat 12, or may be formed at both the front end 12a and the rear end 12b of the slat 12. The notch 20 may be formed to hold the second ladder cord 13B.

Further, when the insertion hole 21A is close to the rear side (or the front side) and the notch 20A is formed only in one of the front and rear directions of the slat 12, as shown in FIG. It is preferable to form a notch 20A at the front end 12a (or the rear end 12b).
According to such a modification, the warp 13a on the front side of the first ladder cord 13A is accommodated in the notch 20A and is difficult to move in the left-right direction. On the other hand, even if the warp yarn 13a on the rear side of the first ladder cord 13A moves to the outside in the left-right direction (right side in FIG. 6A), the upper weft yarn 13b and the lower weft yarn 13c are locked to the first lift cord 14A. To do. Therefore, it is possible to suppress the slats 12 from dropping from the first ladder cord 13A.
The present invention is not limited to the above-described modification, and the insertion hole 21A is formed at the center in the front-rear direction, and the weft thread (upper weft thread 13b and lower weft thread 13c) is inserted into the lifting / lowering cord 14A inserted through the insertion hole 21A. And the movement of the warp yarn 13a that is not accommodated in the notch 20A may be restricted.

Moreover, in 1st Embodiment, although the notch 20 was mentioned as a ladder code holding | maintenance means for the slat 12 to hold | maintain the ladder code 13, this invention is not limited to this.
For example, a ladder cord holding means such as a pair of protrusions 22 and 22 (see FIG. 9), a cut 23, a hole 24, and a slat pressing plate, which will be described later, may be used.
As shown in FIG. 6B, for example, when the through hole 25 that is not continuous with the front end 12a of the slat 12A is formed, the cut 23 is cut from the front end 12a of the slat 12A toward the through hole 25. It is a cut formed. According to this, the front warp 13 a of the first ladder cord 13 </ b> A can be accommodated in the through hole 25 through the notch 23. Further, the front warp 13 a is not easily detached from the through hole 25 by being locked to the notch 23.
Even when this notch 23 is used, the upper weft thread 13b and the lower weft thread 13c are designed to be engaged with the lifting / lowering cord 14A, and the rear warp thread 13a is designed not to come off from the right end 12c of the slat 12A. May be.
The hole 24 is a hole for inserting the pico 17A formed in the second ladder cord 13B on the front side, as shown in FIG. 6 (b). The pico 17A is inserted into the hole 24 from above the slat 12A. A portion of the pico 17A that is disposed below the slat 12A is folded back to the front, and the second elevating cord 14B is inserted through the inside. Also in such an example, the movement of the second ladder cord 13B in the left-right direction can be restricted.
Although not particularly shown, the slat presser plate is fixed to the upper surface (or lower surface) of the slat, and protrudes outward in the front-rear direction from the front and rear ends of the slat, and a ladder cord at the center in the left-right direction of the protrusion. And a concave portion for accommodating the warp yarn.

Further, as shown in FIG. 7, when the insertion hole 21A is close to the rear end 12b of the slat 12, a third elevating cord 14C hanging from the front side of the front end 12a of the slat 12 is provided, and the third elevating cord 14C The bottom rail 15 may be supported.
According to this, both sides in the front-rear direction of the bottom rail 15 are supported by the first elevating cord 14A and the third elevating cord 14C, and the horizontal state of the bottom rail 15 can be reliably held.

In addition, when the insertion hole 21 is moved to one of the front and rear directions of the slat 12, one of the two insertion holes 21 formed on the left and right sides of the slat 12 is formed closer to the front side, and the other is formed closer to the rear side. May be.
According to this, one of the two first elevating cords 14A supports the rear side of the bottom rail 15, and the other supports the rear side of the bottom rail 15. Therefore, the horizontal state of the bottom rail 15 can be maintained.

(Second Embodiment)
Next, the horizontal blind according to the second embodiment will be described.
The horizontal blind according to the second embodiment is different from the horizontal blind 10 according to the first embodiment in that a slat 12B in which no insertion hole 21 is formed is used. Hereinafter, the description will focus on the differences.

As shown in FIG. 8, a pair of notches 20B and 20C are formed on both sides of the slat 12B in the front-rear direction.
The notch 20B is formed by notching the rear end 12b of the slat 12B.
The notch 20C is formed by notching the front end 12a of the slat 12B.
The pair of warps 13a and 13a of the first ladder cord 13A are accommodated in the pair of notches 20B and 20C, respectively.
Each of the notches 20B and 20C has a distance from the right end 12c and the left end 12d of the slat 12B of about 30 mm, and is close to the right end 12c and the left end 12d of the slat 12B.

In the first ladder cord 13A, the lengths of the upper weft thread 13b and the lower weft thread 13c are shorter than the length from the front end 12a to the rear end 12b of the slat 12. For this reason, the pair of warps 13a, 13a is prevented from moving outward from the pair of notches 20B, 20C.
The warp 13a disposed on the rear side of the pair of warps 13a, 13a of the first ladder cord 13A is provided with an annular pico 17B, and the first lifting / lowering cord 14A is inserted into the pico 17B.

  As described above, according to the second embodiment, since the insertion hole through which the first elevating cord 14A is inserted is not formed in the slat 12B, light leakage does not occur through the insertion hole. Further, when the angle of the slat 12 is changed to be in a light shielding state, a part of the pair of notches 20B and 20C overlaps with the upper or lower slat 12B. Further, the pair of cutouts 20B and 20C easily overlap with the light shielding range, the range in which light leaks from the pair of cutouts 20B and 20C is reduced, and the light shielding performance is improved.

  Further, when a load in the left-right direction is applied to the slat 12B, the pair of warps 13a, 13a are locked to the edges of the pair of notches 20B, 20C. Therefore, the movement of the slat 12B is restricted, and the slat 12B is prevented from dropping from the first ladder cord 13A.

  In the second embodiment, the two first lifting / lowering cords 14 </ b> A are located on the rear side of the center portion in the front-rear direction of the slat 12 and support the rear side of the bottom rail 15. On the other hand, one of the two second elevating cords 14 </ b> B supports the front side of the bottom rail 15, and the other supports the rear side of the bottom rail 15. Therefore, the horizontal state of the bottom rail 15 can be maintained.

Although the second embodiment has been described above, the present invention is not limited to the above-described example.
For example, the weft of the present invention may be composed only of the lower weft 13c.
In the second embodiment, the first lifting / lowering cord 14A is not accommodated in the notch 20B, but passes between the upper weft 13b and the lower weft 13c of the first ladder cord 13A and enters the notch 20B. You may make it accommodate.

Regarding the notches, in the second embodiment, the notches 20B and 20C are formed on both sides of the slat 12 in the front-rear direction. However, in the present invention, at least one of both end portions of the slat 12 in the front-rear direction is notched. That's fine.
This is because even in such an example, the movement of the slat 12 in the left-right direction can be restricted by accommodating the warp 13a in the one notch.

  In addition, as shown in FIG. 9, when one notch is formed in the slat 12C (only the notch 20B), a pair of protrusions 22 and 22 may be formed on the slat 12C as a modification. Hereinafter, the details of the pair of protrusions 22 will be described.

The protrusion 22 protrudes upward from the upper surface of the slat 12C and is elongated in the front-rear direction. The protrusion 22 is formed by pressing a lower surface of the slat 12C upward to deform a part of the slat 12C.
Further, the pair of protrusions 22 and 22 are arranged in the left-right direction and are separated from each other in the left-right direction. An upper weft thread 13b of the first ladder cord 13A is disposed between the pair of protrusions 22 and 22.

According to this modification, when a lateral load is applied to the slat 12C, the upper weft thread 13b is locked to the pair of protrusions 22 and 22 in addition to the warp thread 13a being locked to the edge of the notch 20B. The slat 12C is difficult to move in the left-right direction.
Further, when the plurality of slats 12C are folded, the pair of protrusions 22 and 22 come into contact with the lower surface of the upper slat 12C, and the upper surface of the slat 12C does not contact.
In other words, even if the liquid enters between the folded slats 12C, the problem that the slats 12C stick to each other due to the liquid can be avoided.
Further, the cutouts formed in the slats 12C are only the cutouts 20B, and the number of the cutouts is smaller than that of the second embodiment, so that the light shielding property is improved.

Although the modification of the second embodiment has been described above, the pair of protrusions 22 and 22 may be formed by fixing another member by bonding.
Moreover, although a pair of protrusions 22 and 22 protrude above the slat 12, you may protrude below the slat. In this case, it is necessary to dispose the lower weft thread 13c between the pair of protrusions 22 and 22 so that the pair of protrusions 22 and 22 engage with the lower weft thread 13c.
Further, the number of cutouts is not limited to one, and cutouts may be formed on both sides in the front-rear direction.

DESCRIPTION OF SYMBOLS 10 Horizontal type blind 11 Head box 12,12A, 12B, 12C Slat 13 Ladder cord 13A 1st ladder cord 13B 2nd ladder cord 14 Lift code 14A 1st lift cord 14B 2nd lift cord 14C 3rd lift cord 15 Bottom rail 20, 20B, 20C Notch 21 Insertion hole 22 Protrusion 30 Tilt drum 31 Tilt shaft 32 Tilt pole 33 Operation section 34 Head cover

Claims (6)

A head box,
A ladder cord and a lifting / lowering cord suspended from the longitudinal end of the head box;
A plurality of slats supported by the ladder cord on the longitudinal end side;
With
On the end side in the longitudinal direction of the slat, an insertion hole for inserting the lifting cord is formed,
The horizontal blind characterized in that the insertion hole is positioned closer to the end in the longitudinal direction than the ladder cord.   The horizontal blind according to claim 1, wherein the slat is provided with ladder code holding means for holding the ladder code.   The horizontal blind according to claim 1 or 2, wherein the ladder cord and the insertion hole are separated from each other in a longitudinal direction of the slat.   The horizontal blind according to any one of claims 1 to 3, wherein the insertion hole is located closer to an end than a central portion of the slat in a short direction. A head box,
A ladder cord and a lifting / lowering cord suspended from the longitudinal end of the head box;
A plurality of slats supported by the ladder cord on the longitudinal end side;
With
At least one of both ends in the short direction of the slat is provided with a notch located near the end in the longitudinal direction of the slat,
The ladder cord warp is disposed in the notch,
The horizontal blind according to claim 1, wherein the elevating cord is disposed inside the notch or outside an end of the slat in a short direction. The slat is formed with a pair of protrusions protruding in the thickness direction and spaced apart from each other in the longitudinal direction of the slat,
The horizontal blind according to claim 5, wherein a weft of the ladder cord is disposed between the pair of protrusions.

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