WO2016117662A1

WO2016117662A1 - Horizontal shade

Info

Publication number: WO2016117662A1
Application number: PCT/JP2016/051754
Authority: WO
Inventors: 修一黒岩; 慶弘 ▲高▼山; 武信江波戸
Original assignee: 立川ブラインド工業株式会社
Priority date: 2015-01-24
Filing date: 2016-01-21
Publication date: 2016-07-28
Also published as: TW201638454A; JP6738740B2; JPWO2016117662A1

Abstract

Provided is a horizontal shade with which it is possible to increase the opening ratio thereof. According to the present invention, there is provided a horizontal shade configured so that a plurality of slats are turnably supported by a slat support cord hanging down from a head box, and a bottom rail is supported in a raisable and lowerable manner by a raising/lowering tape hanging down from the head box, wherein the raising/lowering tape is arranged so that the main surface of the raising/lowering tape is substantially perpendicular to the longitudinal direction of the slats in at least part of the tape between the head box and the bottom rail.

Description

Horizontal blind

This invention relates to the horizontal blind which raises / lowers a bottom rail using a raising / lowering tape.

The horizontal blind generally has a configuration in which the bottom rail is raised and lowered by spirally winding or unwinding a string-like lifting cord with respect to a winding cone supported rotatably in the head box. Yes (see, for example, Patent Document 1).

Since the lifting / lowering cord is wound spirally around the winding cone, the longer the lifting / lowering cord, the larger the diameter of the winding cone or the longer the entire length of the winding cone. For this reason, when the overall height of the horizontal blind is large or the width of the horizontal blind is narrow, it is difficult to secure a space for accommodating the winding cone in the head box, and the head box becomes large.

In such a case, the bottom rail may be moved up and down using a thin and wide tape-shaped lifting tape instead of the string-shaped lifting cord (see, for example, Patent Document 2). Since the elevating tape is thin, it is wound around the winding drum. The space required for installing the winding drum is smaller than the winding cone. For this reason, there is an advantage that the head box can be miniaturized by adopting the lifting tape instead of the lifting cord.

JP 2007-177484 A JP-A-4-080491

By the way, in the horizontal blind, when it is desired to take outside light into the room, the slat tilt angle is reduced by rotating the slat in the opening direction. As a result, external light is taken into the room from the opening between the slats adjacent in the vertical direction. It is considered that the larger the opening, the more external light can be taken in.

In the configuration of Patent Document 2, since the main surface of the elevating tape is disposed substantially parallel to the window surface, the elevating tape blocks outside light and the area of the opening between adjacent slats is substantially small. It has become.

The present invention has been made in view of such circumstances, and provides a horizontal blind capable of increasing the aperture ratio.

According to the present invention, the plurality of slats are rotatably supported by the slat support cords suspended from the head box, and the bottom rail is supported to be movable up and down by the lifting tape suspended from the head box. In the horizontal blind, the elevating tape is disposed so that a main surface of the elevating tape is substantially perpendicular to a longitudinal direction of the slats at least at a part between the head box and the bottom rail. A horizontal blind is provided.

In the present invention, since at least a part between the head box and the bottom rail is disposed so that the main surface of the lifting tape is substantially perpendicular to the longitudinal direction of the slats, the horizontal blind is viewed from the inside of the room. The projected area of the lifting tape at that time is smaller than that of the prior art, and the aperture ratio increases accordingly, and the lifting tape becomes inconspicuous, so that the aesthetics are improved.

Hereinafter, various embodiments of the present invention will be exemplified. The various embodiments described below can be combined with each other.
Preferably, the elevating tape is inserted into an insertion hole or a notch formed in the slat, and the insertion hole or the notch has a longitudinal direction of the insertion hole or the notch substantially with respect to a longitudinal direction of the slat. It is formed to be vertical.
Preferably, a slat presser for fixing the slat support cord to the slat is provided, and the elevating tape is inserted into an insertion hole or notch formed in the slat presser, and the insertion hole or notch is the insertion hole Alternatively, it is formed such that the longitudinal direction of the notch is substantially perpendicular to the longitudinal direction of the slat.
Preferably, the slat support cord includes a pair of warp yarns, a weft yarn arranged therebetween, and an annular portion protruding in a direction opposite to the weft yarn, and the lifting tape is inserted into the annular portion.
Preferably, a winding drum that is rotatably supported in the head box and capable of winding and rewinding the lifting tape is provided, and the winding drum has a rotation axis of the winding drum that is a longitudinal length of the slat. It arrange | positions so that it may become substantially parallel to a direction, and it is comprised so that the said raising / lowering tape may be wound up by the said winding drum in the state in which the said raising / lowering tape was twisted in the position before the said winding drum.
Preferably, a winding drum that is rotatably supported in the head box and capable of winding and rewinding the lifting tape is provided, and the winding drum has a rotation axis of the winding drum that is a longitudinal length of the slat. It arrange | positions so that it may become substantially perpendicular | vertical to a direction.
Preferably, three or more lift tapes are provided in the longitudinal direction of the slats, and at least one lift tape other than two at both ends is at least a part between the head box and the bottom rail. The main surface of the elevating tape is arranged so as to be substantially perpendicular to the longitudinal direction of the slats.

It is a perspective view which shows the structure of the horizontal blind 1 of 1st Embodiment of this invention. It is an expansion perspective view which shows the structure of the drum unit 19 vicinity in FIG. (A) is the top view of FIG. 1 which looked at the state by which the raising / lowering tape 11 was penetrated to the insertion hole 7a of the slat 7 from the upper side of the slat 7, (b) is the outline of the horizontal blind 1 of FIG. It is a front view. (A) is a perspective view of a modified example in which the insertion hole 7a is provided at a position deviated to one edge of the slat 7, and (b) is an illustration of the lifting tape 11 inserted into the notch 7b instead of the insertion hole 7a. It is a perspective view of a modified example, and (c) is a plan view of (b). (A) is the perspective view of the modification by which the raising / lowering tape 11 was penetrated by the insertion hole 31b provided in the protrusion piece 31a of the slat presser 31, and (b) was provided in the warp 5a of the ladder cord 5. FIG. It is a perspective view of the modification by which the raising / lowering tape 11 was penetrated by the cyclic | annular part 5c, (c) is a top view of (b). It is an expansion perspective view which shows the structure of the vicinity of the winding drum 29 of the horizontal blind 1 of 2nd Embodiment of this invention. It is a perspective view which shows the structure of the horizontal blind 1 of 3rd Embodiment of this invention. (A) is the top view of FIG. 7 which looked at the state by which the raising / lowering tape 11 was penetrated to the insertion hole 7a of the slat 7 from the upper side of the slat 7, (b) is AA in (a). It is sectional drawing.

Hereinafter, various embodiments of the present invention will be described with reference to the drawings. The various embodiments described below can be combined with each other.

1. First Embodiment A horizontal blind 1 according to a first embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 1, the horizontal blind 1 includes a head box 3, a ladder cord 5 suspended from the head box 3, and a lifting tape 11. As shown in FIG. 2, the ladder cord 5 includes a plurality of weft yarns 5b between a pair of warp yarns 5a. A slat 7 is supported on each weft 5b. The ladder cord 5 is fixed to two slats 7 from above with slat pressers 31. The ladder cord 5 corresponds to a “slat support cord” in the claims. The structure of the “slat support cord” is not limited as long as it can support and rotate the slat 7. For example, the slat support cord includes two warps separated from each other, and one warp is provided on one edge of the slat. A configuration may be employed in which the other warp is attached to the other edge of the slat. The elevating tape 11 is a thin and wide tape shape. The value of the width / thickness ratio of the elevating tape 11 is, for example, 5 or more, and preferably 10 or more. Although the upper limit of the value of this ratio is not specifically defined, it is 20, 30, 40, 50, or 100, for example.

In the head box 3, a drum unit 19 is disposed. As shown in FIG. 2, the drum unit 19 includes a support member 21 fixed to the head box 3, a tilter drum 25 and a winding drum 29 that are rotatably supported with respect to the support member 21. A drive shaft 23 having a non-circular cross section is inserted into the tilter drum 25 and the take-up drum 29, and rotates in accordance with the operation of the operation cord 13. The tilter drum 25 and the take-up drum 29 are rotated with the rotation of the drive shaft 23. Rotate. The drive shaft 23 is disposed substantially parallel to the longitudinal direction LS of the slat 7. The operating force applied to the operation cord 13 is converted into the rotation of the drive shaft 23 through the operation pulley and the conversion gear arranged in the pulley case 17. In the electric blind, the drive shaft 23 is rotated with the rotation of the electric motor.

The tilter drum 25 is provided with a ladder cord suspension member 27 made of a metal ring. The ladder cord suspension member 27 is attached to the tilter drum 25 by its elastic force. One end of the pair of warp yarns 5a of the ladder cord 5 is attached to a ladder cord suspension member 27. When the ladder cord suspension member 27 rotates together with the tilter drum 25 as the drive shaft 23 rotates, the slat 7 The inclination angle is changed. The ladder cord suspension member 27 rotates with the rotation of the tilter drum 25 until the slat 7 becomes substantially vertical, and thereafter, the tilter drum 25 rotates idly with respect to the ladder cord suspension member 27. The other ends of the pair of warp threads 5 a of the ladder cord 5 are attached to the bottom rail 9.

The lifting tape 11 has one end attached to the bottom rail 9 and the other end attached to the winding drum 29. When the take-up drum 29 rotates with the rotation of the drive shaft 23, the elevating tape 11 is taken up or rewound from the take-up drum 29, whereby the bottom rail 9 is raised and lowered.

Each slat 7 is provided with an elongated insertion hole 7a for allowing the elevating tape 11 to pass therethrough. As shown in FIG. 3A, the insertion hole 7 a is formed so that the longitudinal direction L <b> 1 of the insertion hole 7 a is substantially perpendicular to the longitudinal direction LS of the slat 7. Here, “the longitudinal direction L1 is substantially perpendicular to the longitudinal direction LS” means, for example, that the angle α in the longitudinal direction L1 of the insertion hole 7a with respect to the longitudinal direction LS of the slat 7 is 60 to 120 degrees. The angle α is preferably 70 to 110 degrees, more preferably 80 to 100 degrees, and further preferably 85 to 95 degrees.

The insertion hole 7a does not hinder the vertical movement of the lifting / lowering tape 11 in the insertion hole 7a (the direction indicated by the arrow H in FIG. 2), and the rotation of the main surface 11a of the lifting / lowering tape 11 in the insertion hole 7a ( The rotation in the direction in which the angle β shown in FIG. 3A changes) is limited to a predetermined angle range. The range in which the main surface 11a of the lifting / lowering tape 11 can rotate within the insertion hole 7a is such that the main surface 11a of the lifting / lowering tape 11 is parallel to the longitudinal direction L1 of the insertion hole 7a as shown in FIG. Is preferably within ± 30 °, more preferably within ± 20 °, and even more preferably within 10 °. The longitudinal length a of the insertion hole 7 a is preferably set to a size that does not interfere with the lifting tape 11 inserted into the insertion hole 7 a when the slat 7 is rotated. The length b of the insertion hole 7a in the short direction (perpendicular to the longitudinal direction) is larger than the thickness of the elevating tape 11 (preferably 2 to 40 times, more preferably 4 to 20 times larger) and the elevating tape 11 has a length b. It is preferable to set it to 1/2 or less (preferably 1/3, 1/4, or 1/5) of the width.

Thus, since the longitudinal direction L1 of the insertion hole 7a is substantially perpendicular to the longitudinal direction LS of the slat 7, and the rotation of the main surface 11a of the elevating tape 11 within the insertion hole 7a is restricted. The elevating tape 11 is held in the insertion hole 7 a so that the main surface 11 a of the elevating tape 11 is substantially perpendicular to the longitudinal direction LS of the slat 7. Here, “the main surface 11a is substantially perpendicular to the longitudinal direction LS” means that the angle β of the main surface 11a of the elevating tape 11 with respect to the longitudinal direction LS of the slat 7 is 60 to 120 degrees. The angle β is preferably 70 to 110 degrees, more preferably 80 to 100 degrees, and further preferably 85 to 95 degrees.

When the main surface 11a of the elevating tape 11 is substantially perpendicular to the longitudinal direction LS of the slat 7, the projected area of the elevating tape 11 when the elevating tape 11 is viewed from inside the room is shown in FIG. As shown in FIG. 4, the aperture ratio is greatly increased compared to the case where the main surface 11a of the elevating tape 11 is parallel to the longitudinal direction LS of the slat 7 as in the prior art. In addition, since the elevating tape 11 becomes inconspicuous, the aesthetics are improved.

By the way, in this embodiment, the rotating shaft of the winding drum 29 is coaxial with the driving shaft 23 and the driving shaft 23 is substantially parallel to the longitudinal direction LS of the slat 7. The rotation axis is also substantially parallel to the longitudinal direction LS of the slat 7. On the other hand, as described above, in the present embodiment, the main surface 11a is substantially perpendicular to the longitudinal direction LS. Therefore, as shown in FIG. 2, at the twisted portion T before the winding drum 29, the lifting tape In a state where 11 is twisted, the elevating tape 11 is wound around the winding drum 29. In the portion above the twisted portion T, the main surface 11a is not substantially perpendicular to the longitudinal direction LS. In this embodiment, in the portion below the twisted portion T, the main surface 11a is in the longitudinal direction. It is substantially perpendicular to LS. In order to make the portion above the twisted portion T as small as possible, the twisted portion T is preferably provided between the uppermost slat 7 and the winding drum 29.

This embodiment can also be implemented in the following aspects.
The shape of the insertion hole 7a is not particularly limited as long as it is an elongated shape, and may be an oval, for example. In the above embodiment, the insertion hole 7a is provided at the approximate center of the slat 7 in the front-rear direction, but may be provided at a position shifted in the front-rear direction as shown in FIG.
Instead of the insertion hole 7a, as shown in FIGS. 4B to 4C, the elevating tape 11 may be inserted through the elongated notch 7b. As shown in FIG. 4C, the notch 7 b is formed so that the longitudinal direction L <b> 2 of the notch 7 b is substantially perpendicular to the longitudinal direction LS of the slat 7. The meaning of “the longitudinal direction L2 is substantially perpendicular to the longitudinal direction LS” is the same as “the longitudinal direction L1 is substantially perpendicular to the longitudinal direction LS”. The length a in the longitudinal direction of the notch 7b may be any depth that can hold the elevating tape 11 in the notch 7b, and is preferably 1/2 or more of the width of the elevating tape 11. The description of the length b in the short direction of the notch 7b is the same as the description of the insertion hole 7a.
Instead of forming an insertion hole or notch in the slat 7, as shown in FIG. 5A, an insertion hole 31b or a notch may be provided in the protruding piece 31a provided in the slat presser 31. The description of the insertion hole or notch of the slat presser 31 is the same as the insertion hole or notch of the slat 7.
As shown in FIGS. 5B to 5C, an annular portion 5c is formed on the warp yarn 5a of the ladder cord 5 so as to protrude in the opposite direction to the weft yarn 5b, and the lifting tape 11 is attached to the annular portion 5c. It may be inserted. By restricting the rotation of the main surface 11a of the elevating tape 11 within the annular portion 5c, the main surface 11a of the elevating tape 11 is held substantially perpendicular to the longitudinal direction LS of the slat 7. The annular portion 5c is preferably formed so that its peripheral length is slightly larger (for example, 2.1 to 3 times) than twice the width of the elevating tape 11.

2. Second Embodiment A second embodiment of the present invention will be described with reference to FIG. This embodiment is similar to the first embodiment, and is mainly different in that the direction of the rotation axis of the winding drum 29 is different from that of the first embodiment. Hereinafter, the difference will be mainly described.

In the first embodiment, since the rotating shaft of the winding drum 29 is coaxial with the driving shaft 23, the rotation of the driving shaft 23 can be transmitted to the winding drum 29 without using a conversion gear. Therefore, there is an advantage that the configuration becomes simple. On the other hand, in the first embodiment, as shown in FIG. 2, a twisted portion T is provided in front of the winding drum 29. However, it is not aesthetically preferable that the twisted portion T is disposed at a position visible to the user. In some cases, it is not easy to arrange the twisted portion T at a position that cannot be seen.

In this embodiment, as shown in FIG. 6, the winding drum 29 is arranged so that the rotation shaft 29 a of the winding drum 29 is substantially perpendicular to the longitudinal direction LS of the slat 7. According to such a configuration, the lifting tape 11 can be wound around the winding drum 29 without twisting, so that the problem caused by the twisted portion T described above can be solved. The rotation of the drive shaft 23 can be transmitted to the winding drum 29 using a conversion gear (not shown) such as a bevel gear.

3. Third Embodiment A third embodiment of the present invention will be described with reference to FIGS. This embodiment is similar to the first embodiment, and the main difference is that the arrangement of the lifting tape 11 is different from that of the first embodiment. Hereinafter, the difference will be mainly described.

In the present embodiment, among the three lifting tapes 11 that are spaced apart from each other in the longitudinal direction LS of the slats 7, the main surface of the lifting tape 11 is substantially perpendicular to the longitudinal direction LS. On the other hand, the two elevating tapes 11 at both ends are arranged so that the main surface of the elevating tape 11 is substantially parallel to the longitudinal direction LS.

In the present embodiment, the central insertion hole 7a is formed so that the longitudinal direction L1 thereof is substantially perpendicular to the longitudinal direction LS, and the insertion hole 7a at both ends has the longitudinal direction L1 thereof substantially parallel to the longitudinal direction LS. It is formed as follows. By inserting the elevating tape 11 into these insertion holes 7a, the main surfaces of the elevating tape 11 at both ends are substantially parallel to the longitudinal direction LS, and the main surface of the central elevating tape 11 is substantially perpendicular to the longitudinal direction LS. The state is realized.

The insertion holes 7a at both ends are formed in the vicinity of the edge of the slat 7, and the length c in the width direction W (direction perpendicular to the longitudinal direction LS) of the slat 7 is short. As described above, when the slat 7 is fully closed, the insertion hole 7a is shielded by the slat 7 on the front side, and the outside light S is prevented from entering the room through the insertion hole 7a. Light leakage is reduced.

Thus, in the present embodiment, the central lifting tape 11 that is relatively conspicuous is arranged to improve the aperture ratio and aesthetics by arranging the main surface so as to be substantially perpendicular to the longitudinal direction LS. The lifting tapes 11 at both ends are configured to reduce light leakage through the insertion hole 7a in the fully closed state.

Here, the case where there are three lifting tapes 11 has been described as an example. However, when there are four or more lifting tapes 11, at least one lifting tape other than two at both ends is used for the lifting tape 11. By arranging the main surface so as to be substantially perpendicular to the longitudinal direction LS, the same effect as described above can be obtained.

1: Horizontal blind, 3: Head box, 5: Ladder cord, 7: Slat, 9: Bottom rail, 11: Lifting tape, 13: Operation cord, 17: Pulley case, 19: Drum unit, 21: Support member, 23: Drive shaft, 25: tilter drum, 27: ladder cord suspension member, 29: winding drum, 31: slat presser

Claims

A horizontal blind configured such that a plurality of slats are rotatably supported by a slat support cord suspended from the head box, and a bottom rail is supported to be lifted and lowered by a lifting tape suspended from the head box.
The elevating tape is a horizontal blind in which a main surface of the elevating tape is arranged so as to be substantially perpendicular to a longitudinal direction of the slats at least at a part between the head box and the bottom rail.
The lifting tape is inserted into an insertion hole or notch formed in the slat,
The horizontal blind according to claim 1, wherein the insertion hole or notch is formed such that a longitudinal direction of the insertion hole or notch is substantially perpendicular to a longitudinal direction of the slat.
A slat presser for fixing the slat support cord to the slat;
The lifting tape is inserted into an insertion hole or notch formed in the slat presser,
The horizontal blind according to claim 1 or 2, wherein the insertion hole or notch is formed such that a longitudinal direction of the insertion hole or notch is substantially perpendicular to a longitudinal direction of the slat.
The slat support cord includes a pair of warp yarns, a weft yarn arranged therebetween, and an annular portion protruding in the opposite direction of the weft yarn,
The horizontal blind according to any one of claims 1 to 3, wherein the elevating tape is inserted through the annular portion.
A winding drum supported rotatably in the head box and capable of winding and rewinding the elevating tape;
The winding drum is disposed so that the rotation axis of the winding drum is substantially parallel to the longitudinal direction of the slat,
5. The apparatus according to claim 1, wherein the elevating tape is wound around the take-up drum in a state where the elevating tape is twisted at a position before the take-up drum. Horizontal blinds.
A winding drum supported rotatably in the head box and capable of winding and rewinding the elevating tape;
The horizontal blind according to any one of claims 1 to 4, wherein the winding drum is disposed such that a rotation axis of the winding drum is substantially perpendicular to a longitudinal direction of the slat.
The elevating tape is provided with three or more spaced apart in the longitudinal direction of the slats,
At least one lifting tape other than two at both ends is arranged so that the main surface of the lifting tape is substantially perpendicular to the longitudinal direction of the slats in at least a part between the head box and the bottom rail. The horizontal blind according to any one of claims 1 to 6, wherein the horizontal blind is arranged.