WO2016084527A1

WO2016084527A1 - Horizontal blind

Info

Publication number: WO2016084527A1
Application number: PCT/JP2015/079861
Authority: WO
Inventors: 貴俊植松
Original assignee: 立川ブラインド工業株式会社
Priority date: 2014-11-28
Filing date: 2015-10-22
Publication date: 2016-06-02
Also published as: TW201619490A; JP6598456B2; CN107002460A; JP2016102322A

Abstract

Provided is a horizontal blind configured so that a plurality of tiers of slats suspended and supported by ladder cords are lifted and lowered using a plurality of lifting and lowering cords. This horizontal blind comprises: pairs of ladder cords 7L, 7M, 7R arranged and suspended at a plurality of locations in the longitudinal direction of a head box 1; a plurality of tiers of slats 4 each supported by horizontal threads 7a, 7b connected between a pair of ladder cords 7L (or 7M or 7R) at a predetermined distance from each other; and a plurality of lifting and lowering cords 6L, 6M, 6R suspended from the head box 1 at positions near the pair of ladder cords 7L (or 7M or 7R). The lifting and lowering cords 6L, 6R at the opposite ends of each of the slats 4 are passed and suspended through insertion holes 4a (or cutouts 4b) which are provided either at the center of the slat 4 in the transverse direction thereof or near an edge of the slat 4 in the transverse direction thereof, the edge facing the outside of the room. The insertion holes 4a (or cutouts 4b) are tapered in the depth direction thereof.

Description

Horizontal blind

The present invention relates to a horizontal blind in which a plurality of slats suspended and supported by a ladder cord are moved up and down using a plurality of lifting cords.

The horizontal blind can lift and lower a plurality of slats supported by a ladder cord suspended from a head box using a plurality of lifting cords, and further, by operating the ladder cord and tilting the slats, It is possible to adjust the amount of solar radiation to be taken in.

For example, the bottom rail is arranged at the lower end of the ladder cord, and the slat is moved up and down by pulling the lifting cord attached to the bottom rail into the head box and pulling it out from the head box. Can be moved up and down.

As this horizontal blind, a configuration is disclosed in which a lifting cord is bent at each edge in the front-rear direction of the slat and suspended depending on the lifting operation of the slat (see, for example, Patent Document 1).

Such a horizontal blind suppresses a lateral shift corresponding to the longitudinal direction of each slat by engaging a ladder cord with a notch of each slat.

JP 2014-62445 A

In the horizontal blind in Patent Document 1, the lifting cord is bent and drooped before and after the slat. In particular, when the slat is lowered, the resistance due to friction increases between the lifting cord and the slat, and it is caught. In particular, there is room for improvement in descent performance.

For example, when using a slat made of a hard material such as wood, if the slat is lowered, resistance due to friction increases between the elevating cord and the slat and it is likely to be caught.

Further, in the horizontal blind in Patent Document 1, each slat is provided with a notch, and a lifting cord is engaged with the notch and suspended, but even when such a notch is used, the lifting cord and the slat A frictional resistance may occur between the two.

In view of the above-described problems, the present invention is to provide a horizontal blind that lifts and lowers a plurality of slats suspended and supported by a ladder cord using a plurality of lifting cords.

The horizontal blind according to the present invention is a horizontal blind that lifts and lowers a plurality of slats suspended and supported by a ladder cord using a plurality of lifting cords, and at least two lifting cords among the plurality of lifting cords The insertion hole or the notch provided in each of the slats of the step is inserted and suspended, and the insertion hole or the notch is tapered in the depth direction.

Further, in the horizontal blind according to the present invention, the taper is inclined so as to maintain the insertion property of the lifting / lowering cord inserted into the insertion hole or notch with respect to each slat tilted during the lowering operation. Features.

In the horizontal blind according to the present invention, the insertion hole or notch is provided in the vicinity of one edge of each of the plurality of slats in the short direction.

In the horizontal blind according to the present invention, the elevating cord is configured to be suspended in a substantially vertical direction from the head box toward the bottom rail when the slats of the plurality of stages are lowered.

In the horizontal blind according to the present invention, the elevating cord is attached from the upper surface of a bottom rail installed below the slats of the plurality of stages.

In the horizontal blind according to the present invention, when the hanging position of the lifting / lowering cord from the winding shaft is located on the indoor side of the insertion hole or the notch, the hanging member (being provided below the winding shaft) In an example of an embodiment to be described later, the lifting / lowering cord is suspended from the outdoor guide surface of a turning pulley.

Further, in the horizontal blind according to the present invention, when the hanging position of the lifting / lowering cord from the winding shaft is located outside the insertion hole or the notch, the hanging member (being provided below the winding shaft) In an example of an embodiment to be described later, the lifting / lowering cord is configured to hang down in contact with an indoor guide surface of a turning pulley.

The horizontal blind according to the present invention can improve the descent performance of the slats.

It is a perspective view which shows schematic structure of the horizontal blind of one Embodiment by this invention. It is a top view of the slat in the horizontal blind of one embodiment by the present invention. (A), (b) is explanatory drawing at the time of tilting operation of the slat in the horizontal blind of one Embodiment by this invention. (A), (b) is the partial top view explaining the shape of the long hole-like insertion hole of the slat of Example 1 in the horizontal blind of one Embodiment by this invention, and its sectional drawing, (c ) Is a partial side cross-sectional view for explaining the hanging of the lifting / lowering cord with respect to the slat of Example 1. FIG. It is side surface sectional drawing which shows the operation | movement at the time of the descent | fall of the slat of Example 1 in the horizontal blind of one Embodiment by this invention. (A), (b) is the partial top view explaining the shape of the long hole-shaped insertion hole of the slat of Example 2 in the horizontal blind of one Embodiment by this invention, and its sectional drawing, (c ) Is a partial side cross-sectional view for explaining the hanging of the lifting / lowering cord with respect to the slat of Example 2. FIG. It is a side view which shows the partial schematic structure of the horizontal blind of one Embodiment by this invention. (A), (b) is a top view explaining the side shift and the twist suppression effect in the horizontal blind of one Embodiment by this invention. (A), (b) is side surface sectional drawing which shows the operation | movement at the time of the descent | fall of the slat of Example 3, 4 in the horizontal blind of one Embodiment by this invention, respectively.

Hereinafter, horizontal blinds according to embodiments of the present invention will be described with reference to the drawings. In the present specification, with respect to the perspective view of the horizontal blind shown in FIG. 1, the upper and lower directions in the figure correspond to the upward direction (or upper side) and the lower direction (or lower side), respectively, according to the hanging direction of the slats. The left direction in the figure is defined as the left side of the horizontal blind, and the right direction in the figure is defined as the right side of the horizontal blind. Moreover, let the side which visually recognizes the perspective view of FIG. 1 be a front side (indoor side), and let the opposite side be a rear side (or outdoor side).

First, a horizontal blind according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a perspective view showing a schematic configuration of a horizontal blind according to an embodiment of the present invention. FIG. 2 is a plan view of the slat 4 in the horizontal blind according to the embodiment of the present invention.

As shown in FIG. 1, the horizontal blind according to the present embodiment is provided with

ladder cords

7L, 7M, and 7R suspended from the left end side, the center side, and the right end side in the longitudinal direction of the head box 1, respectively. Multiple slats 4 are supported. A bottom rail 8 is suspended and supported at the lower ends of the

ladder cords

7L, 7M, and 7R. In addition, a plurality of

elevating cords

6L, 6M, 6R are suspended from the head box 1 alongside the outdoor or

indoor ladder cords

7L, 7M, 7R, and a bottom rail 8 is provided at the lower ends of the

elevating cords

6L, 6M, 6R. Is attached.

A mechanism for adjusting the angle of the multi-stage slats 4, a mechanism for moving the slats 4 up and down, and an operation means for operating these mechanisms can be realized in various known forms. Since it is not directly related to the gist of the present invention, an example thereof will be briefly described.

In the head box 1, support

members

10L, 10M, and 10R for supporting the

ladder cords

7L, 7M, and 7R and the lifting and lowering

cords

6L, 6M, and 6R are disposed, and the

support members

10L, 10M, and 10R have a square bar shape. The drive shaft 12 is inserted (see FIGS. 4 and 5 described later). A tilt drum (not shown) is rotatably supported by

such support members

10L, 10M, and 10R, and the drive shaft is inserted into the tilt drum so as not to be relatively rotatable. Therefore, when the drive shaft 12 is rotated, the tilt drum is rotated, and the angles of the multi-stage slats 4 suspended and supported by the

ladder cords

7L, 7M, and 7R are adjusted.

Further, the

support members

10L, 10M, and 10R are relatively rotated with respect to the drive shaft 12 so that the

elevating cords

6L, 6M, and 6R can be drawn into the head box 1 or pulled out from the head box 1. A winding shaft 11 that is impossiblely attached is provided (see FIGS. 4 and 5 described later). Therefore, when the drive shaft 12 is rotated, the tilt drum rotates, and the angles of the multi-stage slats 4 suspended and supported by the

ladder cords

7L, 7M, and 7R are tilted in a substantially vertical direction with respect to the horizontal direction. After that, the lifting / lowering

cords

6L, 6M, 6R are wound or rewound by the winding shaft 12, and the slats 4 can be moved up and down by moving the bottom rail 8 up and down.

An operation pulley (not shown) for operating the rotation of the drive shaft 12 is accommodated on the right end side of the head box 1, and an endless operation cord 5 hung on the operation pulley is connected to the head box 1. It hangs down from the outlet 1a provided on the front surface on the right end side. Further, a stopper device capable of locking the rotation of the drive shaft 12 is provided in the head box 1 (not shown). Therefore, by operating the operation cord 5, the rotation of the drive shaft 12 is operated, and the multi-stage slats 4 suspended and supported by the

ladder cords

7L, 7M, 7R via the

support members

10L, 10M, 10R. The slats 4 of a plurality of stages can be moved up and down by adjusting the angle of the slats 4 and the

lifting cords

6L, 6M, 6R.

In the horizontal blind according to the present embodiment, as shown in FIG. 2, the closest position from both ends in the longitudinal direction (that is, the left-right direction) of each slat 4 among a plurality of lifting cords (6L, 6M, 6R in this example). As for the elevating

cords

6L and 6R suspended from the head box 1, the lateral direction of each slat 4 (that is, the front-rear direction) is provided in the short direction provided near one edge (outdoor edge). It is configured to pass through and extend through an elongated long insertion hole 4a, and is fixed to the bottom surface side through through

portions

8L and 8R provided in the vicinity of the outdoor edge on the upper surface of the bottom rail 8. . Then, at least one of the lifting / lowering cords other than the lifting / lowering

cords

6L and 6R hanging from the both ends in the longitudinal direction (that is, the left / right direction) of each slat 4 (that is, the lifting / lowering cord 6M in this example). Is suspended along the other edge (inner side edge) of each slat 4 in the short direction, and is attached to the attachment portion 8M provided on the bottom surface along the front side surface of the bottom rail 8. To do. The long hole-like insertion hole 4a is preferably formed so as to extend within a range from one edge portion (outdoor edge portion) of each slat 4 in the short direction to the center portion of each slat 4 in the short direction. It is. Each slat 4 is mounted on a

weft thread

7a, 7b connected at a predetermined interval between a pair of ladder cords 7L (or 7M, 7R) that are arranged and suspended at a plurality of locations in the longitudinal direction of the head box 1. Each is supported.

The long hole-like insertion holes 4a are not obstructed by the tilting operation of the slats 4 and when the slats 4 are tilted so as to be in a shielding state, at least a part of the insertion holes 4a at the edges of the slats 4. Is formed at a position to be shielded.

More specifically, as shown in FIG. 3, in order to insert the lifting / lowering

cords

6L and 6R, a long hole-like insertion hole 4a is formed in the vicinity of the outdoor side edge of each slat 4 in the short direction (that is, the front-rear direction). In the horizontal state (see FIG. 3A) of each slat 4 and the tilted state of each slat 4 (see FIG. 3B), the

lifting cords

6L and 6R are suspended. It can be stretched without any burden in the vertical direction. In addition, since the long hole-shaped insertion hole 4a is provided in the vicinity of the outdoor edge, as shown in FIG. 3B, light leakage from the insertion hole 4a is suppressed, and the shielding property against external light is enhanced. Yes. In particular, the long hole-like insertion hole 4a in the slat 4 in the horizontal blind according to the present embodiment is configured to have a taper 41 in the depth direction in order to improve the descending performance accompanying the tilting operation of each slat 4. .

Here, in the horizontal blind according to the present embodiment, the wide slat 4 is referred to as Example 1 and the narrow slat 4 is referred to as Example 2, and the elongated insertion holes 4a of the respective examples will be described in order.

(Slat of Example 1)
4 (a) and 4 (b) show a partial plan view and a cross-sectional view illustrating the shape of the elongated insertion hole 4a of the slat 4 of Example 1 in the horizontal blind according to the present embodiment. ing. FIG. 4C shows a partial side cross-sectional view for explaining the hanging of the elevating cord 6L (or 6R) with respect to the slat 4 of the first embodiment.

In the slat 4 according to the first embodiment, as shown in FIG. 4C, the hanging position of the lifting / lowering cord 6L (or 6R) inserted through the insertion hole 4a from the take-up shaft 11 is substantially larger than that of the insertion hole 4a. An example in which the lift cord 6L (or 6R) is suspended by being brought into contact with the outdoor guide surface of the turning pulley 13L (or 13R) provided below the winding shaft 11 when positioned on the indoor side. It is.

In order to improve the descending performance accompanying the tilting operation of each slat 4, it is important that the resistance due to friction does not increase between the lifting / lowering cord 6L (or 6R) and the insertion hole 4a of the slat 4. Therefore, the long hole-like insertion hole 4a in the slat 4 of the first embodiment is formed in the depth direction in order to improve the descending performance accompanied by the tilting operation of each slat 4, as shown in FIGS. 4 (a) and 4 (b). A taper 41 is provided. The taper 41 is inclined so as to maintain the insertability of the elevating cord 6L (or 6R) inserted into the elongated insertion hole 4a with respect to each slat 4 tilted during the lowering operation. In FIG. 4 (c), the broken cord 6M is suspended along the indoor side edge of the slat 4 in contact with the indoor side guide surface of the turning pulley 13M by a broken line for comparison. It is shown.

As shown in FIG. 5, the lifting / lowering cord 6L (or 6R) inserted through the elongated insertion hole 4a is removed from the head box 1 (

support members

13L and 13R) when the slats 4 are lowered. It is configured to hang down in a substantially vertical direction toward the bottom rail 8.

Thus, since the insertion hole 4a is provided with the taper 41, the resistance due to friction does not increase between the lifting / lowering cord 6L (or 6R) and the insertion hole 4a of the slat 4. Then, the lifting / lowering cord 6L (or 6R) inserted through the insertion hole 4a is bent by being configured to hang in the substantially vertical direction from the head box 1 (supporting

members

13L and 13R) toward the bottom rail 8. The descent performance can be improved as compared with the case of hanging.

(Slat of Example 2)
6 (a) and 6 (b) show a partial plan view and a cross-sectional view illustrating the shape of the elongated insertion hole 4a of the slat 4 of Example 3 in the horizontal blind of this embodiment. ing. FIG. 6C is a partial side cross-sectional view for explaining the hanging of the elevating cord 6L (or 6R) with respect to the slat 4 of the third embodiment.

In the slat 4 in the second embodiment, as shown in FIG. 6C, the hanging position of the lifting / lowering cord 6L (or 6R) inserted through the insertion hole 4a from the take-up shaft 11 is substantially larger than that of the insertion hole 4a. An example in which the lifting cord 6L (or 6R) is suspended by being brought into contact with the indoor guide surface of the turning pulley 13L (or 13R) provided below the winding shaft 11 when positioned on the outdoor side. It is.

Also in the long hole-like insertion hole 4a in the slat 4 of the second embodiment, as shown in FIGS. 6A and 6B, in order to improve the descending performance accompanying the tilting operation of each slat 4, A taper 41 is provided. The taper 41 is inclined so as to maintain the insertability of the elevating cord 6L (or 6R) inserted into the elongated insertion hole 4a with respect to each slat 4 tilted during the lowering operation. In FIG. 6 (c), the broken cord 6M is suspended along the indoor side edge of the slat 4 by being brought into contact with the indoor side guide surface of the turning pulley 13M and is shown by a broken line for comparison. It is shown.

Therefore, the lift cord 6L (or 6R) inserted into the long hole-like insertion hole 4a is also provided to the slats 4 of the second embodiment as in the example shown in FIG. Is configured to hang in a substantially vertical direction from the head box 1 (

support members

13L and 13R) toward the bottom rail 8.

Thus, also in the slat 4 of the second embodiment, since the insertion hole 4a is provided with the taper 41, the resistance due to friction between the elevating cord 6L (or 6R) and the insertion hole 4a of the slat 4 is large. Don't be. Then, the lifting / lowering cord 6L (or 6R) inserted through the insertion hole 4a is bent by being configured to hang in the substantially vertical direction from the head box 1 (supporting

members

13L and 13R) toward the bottom rail 8. The descent performance can be stabilized as compared with the case of hanging.

When the hanging position of the lifting / lowering cord 6L (or 6R) inserted through the insertion hole 4a from the winding shaft 11 is substantially the same as that of the insertion hole 4a (that is, hanging from the winding shaft 11 in a substantially vertical direction). And when it can be inserted through the insertion hole 4a), it is brought into contact with either the indoor side guide surface or the outdoor side guide surface of the turning pulley 13L (or 13R) provided below the winding shaft 11. The lifting / lowering cord 6L (or 6R) can be suspended, or the use of the turning pulley 13L (or 13R) itself can be eliminated.

Further, in addition to the three lifting / lowering

cords

6L, 6M, and 6R as in the present embodiment, four or more lifting / lowering cords may be used. In this case, at least two lifting / lowering cords out of the plurality of lifting / lowering cords are inserted into the elongated hole-like insertion hole 4a and suspended, and at least one lifting / lowering cord other than the at least two lifting / lowering cords is lifted / lowered. The cord hangs along the other edge of each slat 4 in the short direction.

At this time, among the plurality of lifting cords, the lifting cords hanging down at the “longest position from both ends” of each of the plurality of slats 4 (in the example of FIGS. 1 and 2, the

lifting cord

6L, 6R) is configured to be inserted into a long hole-like insertion hole 4a extending in the short direction provided in the vicinity of one edge (outdoor edge) of each slat 4 in the short direction. All the lifting / lowering cords (lifting / lowering cord 6M in the examples of FIGS. 1 and 2) inserted into the through-holes 4a without using the notches or the insertion holes are short direction of each slat 4 It is preferable to make it hang along the other edge (inner side edge). As a result, the number of insertion holes 4a can be reduced to more effectively reduce the resistance caused by the friction between the lifting / lowering cord and the slat, and the light leakage can be effectively suppressed.

As shown in FIGS. 1 and 2, in the horizontal blind according to the present embodiment, a pair of

ladder cords

7L, 7M, and 7R are suspended so as to face each other in the short direction (that is, the front-rear direction) of the slat 4. Between the pair of ladder cords 7L,

wefts

7a and 7b intersecting in an X shape are connected at a predetermined interval, and as shown in FIG. 7, the slats 4 are placed on the

wefts

7a and 7b. Similarly, between the pair of ladder cords 7M (or 7R),

weft yarns

7a and 7b intersecting in an X shape are connected at a predetermined interval, and the slat 4 is placed on the

weft yarns

7a and 7b.

That is, as shown in FIGS. 1 and 7, the slat 4 in the horizontal blind according to the present embodiment has a flat plate shape made of a hard material such as wood that cannot be bent. It cannot be said that it is easy to assemble the flat slat 4 made of a hard material while being inserted between the

wefts

7a and 7b intersecting in the X shape. For this reason, the assemblability can be improved by constructing the flat slats 4 made of the hard material on the

wefts

7a and 7b intersecting in the X shape.

Then, as shown in FIG. 7, the lifting cord 6L (or 6R) is knitted into each

weft yarn

7a, 7b in a predetermined step (every five steps in the illustrated example) with respect to a plurality of slats 4. It is preferable to do this. The

weaving cords

6L and 6R with respect to the

weft yarns

7a and 7b are preferably knitted for each slat 4 so as to be symmetrical with respect to the central portion in the longitudinal direction. For example, as shown in FIG. 7, for a certain slat 4, the lifting / lowering cords 6 </ b> L and 6 </ b> R are inserted through the

corresponding weft yarns

7 a and 7 b toward the center portion. For another slat 4, the

lifting cords

6L and 6M are inserted into the

corresponding weft yarns

7a and 7b on the outer edge side opposite to the central portion.

Similarly, the lifting / lowering cord 6M can be configured so as to be knitted into the

weft yarns

7a and 7b in predetermined steps (in the example shown, every five steps) with respect to the slats 4 of a plurality of steps. Is preferably inserted between the

wefts

7a and 7b (see FIG. 2). Alternatively, when the upper and lower slats 4 are knitted between the

weft yarns

7a and 7b and inserted through the upper and lower slats 4, the lifting cord 6M is inserted into the right side of the weft yarn 7a and the left side of the weft yarn 7b. 4, the lifting cord 6M may be inserted into the left side of the weft thread 7a and the right side of the weft thread 7b so as to be knitted (not shown).

As described above, even if the slats 4 are simply placed on the

respective weft yarns

7a and 7b by constructing at least the elevating

cords

6L and 6M into the

weft yarns

7a and 7b in predetermined steps, each slat Assembling property can be improved while suppressing lateral displacement of 4 (see FIG. 8A) and twisting (see FIG. 8B).

Further, since the through

portions

8L and 8R are provided on the upper surface of the bottom rail 8 in accordance with the hanging positions of the plurality of lifting / lowering

cords

6L and 6R, respectively, the plurality of lifting / lowering

cords

6L and 6R can be suspended in a substantially vertical direction. it can. Thereby, the raising / lowering operation | movement and tilting operation | movement of each slat 4 can be made smooth.

(Slats of Examples 3 and 4)
In the above-described example, the wide slat 4 is referred to as Example 1, and the narrow slat 4 is referred to as Example 2, and the turning pulley 13L (or 13R) provided below the winding shaft 11 in the

support members

10L and 10R is used. The

support members

10L and 10R are configured to be applicable to any of the slats 4 of the first and second embodiments, depending on whether they are brought into contact with the indoor guide surface or the outdoor guide surface. Therefore, there is an advantage that the configuration of the

support members

10L and 10R can be made common.

On the other hand, when the usage of the

support members

10L and 10R is not required due to the difference in the configuration of the slat 4, it can be configured like the slat 4 of the third embodiment as described below. When the use is not required, it can be configured like the slat 4 of Example 4 as described below. FIGS. 9A and 9B are side cross-sectional views showing the operation of the slats of Examples 3 and 4 when the horizontal blind according to the embodiment of the present invention is lowered.

From the viewpoint of improving the descent performance accompanied by the tilting operation of each slat 4, the long hole-like insertion hole 4 a is tapered in the depth direction so that the resistance due to the friction of the elevating cord 6 </ b> L (or 6 </ b> R) against the slat 4 does not increase. What is necessary is just to comprise. Therefore, as shown in FIG. 9A as the third embodiment, each slat 4 is provided even when the long hole-like insertion hole 4a is provided at the approximate center of the width in the short direction (front-rear direction) of each slat 4. It is possible to improve the descent performance accompanied by the tilting operation. In the example shown in FIG. 9A as well, the lifting / lowering cord 6L (or 6R) inserted through the elongated insertion hole 4a is the head box 1 (

support members

13L and 13R) when the slats 4 of the plurality of stages are lowered. ) To the bottom rail 8 in a substantially vertical direction.

In addition, as shown in FIG. 9 (b) as the fourth embodiment, instead of the elongated insertion hole 4a, a notch 4b is formed, and the notch 4b has a taper in the depth direction. Moreover, the descent performance accompanying the tilting operation of each slat 4 can be improved. In the example shown in FIG. 9 (b), the lifting / lowering cord 6L (or 6R) inserted through the notch 4b is removed from the head box 1 (

support members

13L and 13R) when the slats 4 of the plurality of stages are lowered. It can be configured to hang down in a substantially vertical direction toward the bottom rail 8.

As described above, in the horizontal blind according to the present embodiment, the pair of

ladder cords

7L, 7M, and 7R facing each other in the short direction (that is, the front-rear direction) of each slat 4 has a plurality of locations in the longitudinal direction of the head box 1. A plurality of lifting / lowering

cords

6L, 6M and 6R are suspended from the head box 1 in the vicinity of each pair of

ladder cords

7L, 7M and 7R, and at least two lifting / lowering cords, preferably With respect to the

lifting cords

6L and 6R hanging from the head box 1 at the closest position from both ends in the longitudinal direction (ie, left and right direction) of each slat 4, one edge (outdoor edge) of each slat in the short direction ) The elevating cords 6L and 6 are suspended by being inserted into a long hole-like insertion hole 4a provided in the vicinity or the central part and extending in the short direction or a notch 4b provided in the vicinity of the outdoor edge. At least one of the lift cords other than (i.e., lift cords 6M in this example) is configured to droop along the other edge of each slat 4 (indoor side edges). The position of the long hole-like insertion hole 4a or notch 4b (outdoor edge, center, indoor edge, etc.) may be changed depending on the use of the horizontal blind. This is a preferred example and need not be limited to this.

In particular, in the horizontal blind according to the present embodiment, the long hole-shaped insertion hole 4a or the notch 4b is provided with a taper 41 in the depth direction. The taper 41 is inclined with respect to each slat 4 tilted during the lowering operation so as to maintain the insertion property of the elevating cord 6L (or 6R) inserted through the long insertion hole 4a or the notch 4b. Yes.

Thereby, it is possible to prevent the frictional resistance from increasing between the elevating cord 6L (or 6R) and the insertion hole 4a or the notch 4b of the slat 4, and to improve the descent performance accompanied by the tilting operation of each slat 4. Can be made.

Further, in the horizontal blind according to the present embodiment, the lifting / lowering cord 6L (or 6R) inserted through the long hole-like insertion hole 4a or the notch 4b is provided with the head box 1 (supporting member) when the slat 4 is lowered. 13L or 13R) is suspended in a substantially vertical direction toward the bottom rail 8. In particular, the winding shaft 11 depends on whether or not the hanging position of the lifting / lowering cord 6L (or 6R) inserted through the insertion hole 4a or the notch 4b from the winding shaft 11 is located on the indoor side of the insertion hole 4a. The guide surface to be brought into contact with the turning pulley 13L (or 13R) provided below is selectively installed. Thereby, the structure of the support member can be made common to the plurality of types of slats 4.

In this manner, the lifting / lowering cord 6L (or 6R) inserted through the insertion hole 4a or the notch 4b is configured to hang in a substantially vertical direction from the head box 1 (

support members

13L and 13R) toward the bottom rail 8. As a result, the descending performance can be improved as compared with the case of being bent and suspended.

In the horizontal blind according to the present embodiment, the lifting / lowering cord 6L (or 6R) inserted through the long hole-like insertion hole 4a or the notch 4b is provided on the bottom rail 8 installed below the slats 4 of the plurality of stages. It was configured to be attached from the top.

This ensures that the lifting / lowering cord 6L (or 6R) hangs down in a substantially vertical direction and can improve its descent performance as compared with the case where it is bent and hanged down.

As described above, the present invention has been described with reference to examples of specific embodiments, but the present invention is not limited to the examples of the above-described embodiments, and various modifications can be made without departing from the technical idea thereof. For example, the

weft yarns

7a and 7b intersecting in an X shape have been described as an example, but the

weft yarns

7a and 7b may be parallel without intersecting or may be a single weft yarn.

Further, the lifting / lowering cord (for example, 6L or 6R) inserted into the long hole-shaped insertion hole 4a or the notch 4b may be in the substantially vertical direction when the slat 4 is lowered, and is not necessarily in the substantially vertical direction when the slat 4 is raised. do not have to.

Further, the lifting / lowering cord (for example, 6M) other than the lifting / lowering cord (for example, 6L or 6R) inserted into the long hole-shaped insertion hole 4a or the notch 4b is connected to the other edge portion (inner side end) of each slat 4 in the short direction. ) And the frictional resistance does not increase, so there is no need to hang in a substantially vertical direction.

Further, in the horizontal blind according to the above-described embodiment, instead of the operation by the operation code 5, it may be configured to operate electrically by an operation from an external switch or the like. The “elevating cord” includes a string shape or a tape shape.

According to the present invention, since the descent performance of the slat can be improved, it is useful for a horizontal blind using a plurality of lifting cords.

DESCRIPTION OF SYMBOLS 1 Head box 1a Outlet 4 Slat 4a Insertion hole 4b Notch 5

Operation cord

6L, 6M,

6R Lifting cord

7L, 7M,

7R Ladder cord

7a, 7b Weft 8

Bottom rail

8L, 8R Through part

8M Attachment part

10L, 10M,

10R support member

13L, 13M, 13R turning pulley 11 take-up shaft 12 drive shaft 41 taper of insertion hole

Claims

A horizontal blind that lifts and lowers a plurality of slats suspended by a ladder cord using a plurality of lifting cords,
At least two lifting cords out of the plurality of lifting cords are suspended through the insertion holes or notches provided in each of the plurality of slats, and the insertion holes or notches are tapered in the depth direction. Horizontal blinds characterized by being
2. The taper according to claim 1, wherein the taper is inclined so as to maintain the insertion property of the lifting / lowering cord inserted into the insertion hole or the notch with respect to each slat tilted during the lowering operation. Horizontal blinds.
The horizontal blind according to claim 1 or 2, wherein the insertion hole or notch is provided in the vicinity of one edge of each of the plurality of slats in the short direction.
The said raising / lowering code | cord | chord is comprised so that it may hang in the substantially vertical direction toward the bottom rail from a head box at the time of the said several steps | paragraph of slat fall | descend. Horizontal blinds as described in
The horizontal blind according to any one of claims 1 to 4, wherein the elevating cord is attached from an upper surface of a bottom rail installed below the plurality of slats.
When the hanging position of the lifting / lowering cord from the winding shaft is located on the indoor side of the insertion hole or notch, the lifting / lowering cord is brought into contact with the outdoor guide surface of the hanging member provided below the winding shaft. The horizontal blind according to any one of claims 1 to 5, wherein the lifting / lowering cord is configured to hang down.
When the hanging position of the lifting / lowering cord from the winding shaft is located on the outdoor side of the insertion hole or the notch, the lifting / lowering cord is brought into contact with the indoor guide surface of the hanging member provided below the winding shaft. The horizontal blind according to any one of claims 1 to 5, wherein the lifting / lowering cord is configured to hang down.