WO2016117660A1

WO2016117660A1 - Horizontal blind

Info

Publication number: WO2016117660A1
Application number: PCT/JP2016/051752
Authority: WO
Inventors: 修一黒岩; 慶弘 ▲高▼山
Original assignee: 立川ブラインド工業株式会社
Priority date: 2015-01-23
Filing date: 2016-01-21
Publication date: 2016-07-28
Also published as: JP7269412B2; CN107208454A; CN107208454B; JP2020169570A; TW201634804A; JP2016138442A; JP6906896B2; JP7068393B2; JP2022093446A

Abstract

In order to achieve a reduction in drum size, the present invention is provided with: a head box 11; a plurality of slats 20 aligned along the lifting/lowering direction; a ladder cord 30 fed out from the head box 11, the ladder cord 30 supporting each of the plurality of slats 20 in a tilt-adjustable manner; a bottom rail 21 located below the lowermost slat 20; a lifting tape 40 fed out from the head box 11, the distal-end part of the lifting tape 40 being connected to the bottom rail 21, and the lifting tape 40 lifting/lowering the plurality of slats 20; and a first through-hole 51 for adjusting the orientation of the lifting tape 40 at a position before the lifting tape 40 is taken into the head box 11.

Description

Horizontal blind

The present invention relates to a horizontal blind.

Some horizontal blinds lift and lower a plurality of slats using a lifting tape (see Patent Document 1).

Japanese Patent No. 2738483

However, in the case of a horizontal blind with a high overall height, the lifting tape becomes longer, and the winding diameter of the lifting tape becomes larger, so that the drum to be wound becomes larger. Along with this, the head box in which the drum is disposed is also enlarged.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a horizontal blind that realizes downsizing of a winding unit such as a drum.

A horizontal blind that solves the above problems includes a head box, a plurality of slats arranged in the ascending / descending direction, a ladder cord that is suspended from the head box and supports each of the slats so that tilt adjustment is possible, and a lowermost stage. A bottom rail located below the slat, a lifting tape suspended from the head box and moving up and down the bottom rail, an insertion portion through which the lifting tape is inserted along the ladder cord, A guide portion that is disposed closer to the head box than the insertion portion and guides the main surface of the lifting tape along the extending direction of the lifting tape so as to conform to the winding surface of the winding portion of the lifting tape With.

According to the above configuration, by using the lifting tape, it is possible to reduce the size of a winding unit that winds up the lifting tape, for example, provided in the head box. Thereby, the overall height can be increased. In addition, since the guide portion for guiding the surface of the lifting tape is provided before winding the lifting tape in the head box, it is prevented from being twisted and wound even if the lifting tape becomes long. Can do.

In the horizontal blind, the guide portion may be configured by a through hole formed in the slat.
According to the said structure, the said guide part can be easily formed with a through-hole.

In the horizontal blind, the through hole may be formed in the slat located at the uppermost stage.
According to the said structure, the said lifting tape can be guided just before winding the said lifting tape in the said head box in the said winding part, and generation | occurrence | production of the twist of the said lifting tape can be suppressed further.

In the horizontal blind, the insertion portion may be an annular body supported by the ladder cord, and the annular body may be arranged along the ascending / descending direction, and the lifting tape may be inserted therethrough. .
According to the said structure, the said annular body can be handled integrally with the said ladder cord.

In the horizontal blind, the lifting tape is a first lifting tape, and the guide portion is formed at a position where the first lifting tape is inserted and biased toward one long side of the slat. It can be a through hole. The horizontal blind is further suspended from the head box, and has a second lifting tape that moves up and down the bottom rail in cooperation with the first lifting tape, and a lower stage than the slat in which the first through hole is formed. The main surface of the second lifting tape is guided along the extending direction of the second lifting tape so as to conform to the winding surface of the winding portion, and the other long side portion side of the slat You may make it provide the said 2nd through-hole formed in the position biased to.
According to the above configuration, the plurality of slats can be lifted and lowered in a stable state.

In the horizontal blind, a slat into which neither the first lifting tape nor the second lifting tape is inserted may be provided in the plurality of slats.
According to the above configuration, the plurality of slats can be reliably opened and closed by being inclined.

In the horizontal blind, the first through hole and the second through hole are provided to be shifted in the long side direction of the slat, and when the plurality of slats are fully closed, the first through hole May be shielded by one long side of the adjacent slat, and the second through hole may be shielded by the other long side of the adjacent slat.
According to the said structure, when the said slat is fully closed, it can prevent that the position of a said 1st through-hole and a said 2nd through-hole corresponds, and leaks light.

In the horizontal blind, the head box may be provided with the winding portion for winding the lifting tape and a guide roller for guiding the lifting tape. In this case, the guide roller is always in contact with the lifting tape drawn from the winding portion regardless of the winding diameter of the lifting tape in the winding portion, and the lifting tape is drawn from the same position. .
According to the said structure, the sending position sent out of the said head box from the said winding part can be made the same irrespective of the winding diameter in the said winding part.

In the horizontal blind, a bottom rail may be provided below the lowermost slat. In this case, a width between one long side of the bottom rail and the other long side is formed wider than a width between one long side of the slat and the other long side.
According to the said structure, the said slat can be piled up so that it may not spill on the said bottom rail.

According to the above configuration, it is possible to reduce the size of the winding unit.

It is a perspective view which shows the front structure of a horizontal blind. It is the rear view which looked at the horizontal blind from the room outer side. It is the front view which looked at the horizontal blind from the room inner side. It is a side view of a horizontal blind. It is a figure which shows the support member provided with the drum which winds a ladder cord and a lifting tape, (a) is the perspective view seen from the upper side, (b) is the perspective view seen from the lower side. (A) is a diagram showing the positional relationship between the drum and the guide roller that winds the lifting tape extending outside the room, and (b) is the positional relationship between the drum and the guide roller that winds the lifting tape extending inside the room. FIG. FIG. 3 is a perspective view showing a fixing state of a lifting tape and a ladder cord extending outside the room. FIG. 3 is a perspective view showing a fixing state of a lifting tape and a ladder cord extending inside the room. (A) is a plan view of the uppermost slat, (b) is a plan view of the second slat, and (c) is a plan view of the third and subsequent slats. It is a perspective view which shows the state which the lifting tape penetrated to pico. It is a perspective view which shows the slat retainer of a room outer side. It is a perspective view which shows the slat retainer inside a room. It is a front view of the horizontal blind with a slat fully closed. It is a side view of the horizontal blind with the slat fully closed. FIG. 6 is a plan view showing a modification in which a lifting tape is supported by a weft thread of a ladder cord. FIG. 6 is a perspective view showing a modification in which the tape opening of the head box is formed in the same shape as the first through hole instead of the first through hole of the uppermost slat. FIG. 6 is a perspective view showing a modified example in which a pair of guide rollers is provided instead of the first through hole of the uppermost slat. This is a cross-sectional view of the main part of a horizontal blind with the bottom rail wider than the slat. FIG. 3 is a plan view showing the positional relationship among slats, ladder cords and lifting tape. (A) And (b) is sectional drawing of a bottom rail and a tape guide member. It is a top view which shows the positional relationship of the slat of a horizontal blind provided with the 3rd lifting tape, a ladder code, and a lifting tape. It is a principal part front view of the horizontal blind shown in FIG.

Hereinafter, a horizontal blind to which the present invention is applied will be described with reference to the drawings. As shown in FIGS. 1 to 4, the horizontal blind 10 includes a head box 11 attached to an attachment part such as a ceiling, a window frame, a curtain box, a plurality of slats 20 for shielding solar radiation, and tilt adjustment of the slats 20. A ladder cord 30 that can be supported and a lifting tape 40 that lifts and lowers the plurality of slats 20 are provided. Further, the horizontal blind 10 includes a guide portion 50 that guides the lifting tape 40.

The slat 20 is formed of a synthetic resin plate, a metal plate such as stainless steel, and the like, and is formed in an elongated rectangular thin plate shape, and the upper surface portion has an arcuate surface. Note that the slat 20 may be formed of a wooden board. The plurality of slats 20 are arranged along the height (elevating / lowering) direction (Y) and are supported by a ladder cord 30 suspended from the head box 11 so that the tilt adjustment is possible. A bottom rail 21 having the same length (X) as the slat 20 is disposed below the lowermost slat 20. The bottom rail 21 is a weight member that maintains the plurality of slats 20 in a lowered state. The bottom rail 21 has substantially the same length (X) and width (Z) as the slats 20, and when the bottom rail 21 is pulled up, a plurality of slats 20 are stacked on the bottom rail 21. The front end portion of the ladder cord 30 is fixed to the bottom rail 21. Further, a lifting tape 40 unwound from the head box 11 is fixed to the bottom rail 21. In the head box 11, a plurality of drums for winding the lifting tape 40, a shaft body 14 for rotating the plurality of drums in synchronization, and the like are disposed. An operation cord 12 constituting a part of an operation mechanism 13 for adjusting the tilt of the slats 20 and raising / lowering the slat 20 is wound around the head box 11.

When the operation cord 12 is pulled in one direction with the plurality of slats 20 lowered, the pulley of the operation mechanism 13 rotates and the drum around which the lifting tape 40 is wound rotates. As a result, the lifting tape 40 is wound around the drum, and the plurality of slats 20 in the lowered state are pulled up so as to be stacked close to each other as the bottom rail 21 rises. When the operation cord 12 is pulled in the other direction while the bottom rail 21 is pulled up, the bottom rail 21 is lowered by the length of the lifting tape 40 at the maximum due to its weight. . As a result, the plurality of slats 20 connected by the ladder cord 30 descend together with the bottom rail 21.

As shown in FIGS. 1 to 3, in the horizontal blind 10, the ladder cord 30 is disposed in the vicinity of both ends in the longitudinal direction perpendicular to the ascending / descending direction of the plurality of slats 20, and the central portion in the longitudinal direction. One is provided in total, and a total of three are provided. Further, three lifting tapes 40 are arranged along the ladder cord 30. One lifting tape 40 located at the center of the slat 20 in the longitudinal direction extends to the outside of the room, and the two lifting tapes 40 arranged near both ends in the longitudinal direction of the slat 20 are arranged inside the room. Extend to. Hereinafter, the lifting tape outside the room is referred to as a first lifting tape 40a, and the lifting tape inside the room is referred to as a second lifting tape 40b.

The tip of the first lifting tape 40a outside the room is fixed to the center of the long side of the bottom rail 21 on the outside of the room by the tape holder 22 together with the tip of the warp 31 of the ladder cord 30. As shown in FIG. 4, the leading ends of the two second lifting tapes 40 b inside the room are attached to the both ends of the long side inside the room of the bottom rail 21 by the tape holder 22 together with the leading ends of the warp 31 of the ladder cord 30. It is fixed.

As shown in FIGS. 1, 3, and 4, the head box 11 is provided with an operation mechanism 13 for opening / closing and lifting / lowering the horizontal blind 10 on the inner surface of the room. The operation mechanism 13 includes a pulley, a gear box, a shaft body 14 and the like in a housing 13a. An annular operation cord 12 is stretched over the pulley, and a shaft body 14 extending in the longitudinal direction of the head box 11 is connected via a gear box. The shaft body 14 is, for example, a square shaft, and three drums 15 are provided on the shaft body 14 according to the number of ladder cords 30 and lifting tapes 40. The three drums 15 serving as a winding mechanism for the lifting tape 40 can be rotated in synchronization by being coaxial. That is, the operating mechanism 13 can wind or unwind the three lifting tapes 40 at the same speed. As shown in FIGS. 5A and 5B, each drum 15 is provided with a ladder cord 30 and a winding portion 15 b that winds the lifting tape 40. Each drum 15 has a shaft 14 inserted through the center. The winding portion 15b has a cylindrical shape, and its outer peripheral surface is a winding surface, and winds the flat and thin lifting tape 40 without causing twisting or wrinkling. That is, the lifting tape 40 is wound so that one main surface of the opposing surfaces of the tape body is parallel to and overlaps the winding surface. Each drum 15 is rotatably supported by a support member 16 provided in the head box 11.

The support member 16 rotatably supports the drum 15 through which the shaft body 14 is inserted by a concave rotation support portion 16a. Further, the support member 16 is provided with a cord opening portion 17a from which the ladder cord 30 is suspended from the drum 15 and a tape opening portion 17b from which the lifting tape 40 is unwound on the surface of the uppermost slat 20 side. The cord opening 17a is configured by a long hole extending from the front edge of the support member 16 inside the room to the rear edge of the outside of the room. The cord opening 17a is provided with a pair of drawn pieces 17c for drawing the two warps 31 constituting the ladder cord 30 inward in the front-rear direction. The pair of drawn pieces 17c is formed by inserting the two warp yarns 31 constituting the ladder cord 30 with the drawn piece 17c into the inner side and narrowing the outlet so that the two warp yarns 31 are wound up on the slats 20 when the slats 20 are wound up. To prevent it from returning to the side. The tape opening 17b is provided with two parts, the opening for the first lifting tape 40a for outdoor use and the opening for the second lifting tape 40b for indoor use, so that parts can be shared.

By the way, when the lifting tape 40 is wound around the winding portion 15b, the winding diameter varies depending on the winding amount, and the position of the lifting tape 40 unwound from the tape opening portion 17b varies. Here, as shown in FIGS. 6A and 6B, a guide roller 18 formed of a pulley or the like is provided between the drum 15 and the tape opening 17b. The guide roller 18 is always provided at a position in contact with the lifting tape 40, so that the first delivery position A of the lifting tape 40 to be delivered is made constant. Specifically, as shown in FIG. 6 (a), in the first lifting tape 40a at the center of the outside of the room, the second delivery position B sent out from the take-up part 15b according to the winding amount at the take-up part 15b is Variable in the radial direction of the drum 15. In FIG. 6 (a), the dotted line is when the winding amount of the first lifting tape 40a is minimum and the solid line is maximum. Therefore, the guide roller 18 is provided in the vicinity of the tape opening 17b, and is provided so that a constant tension is always applied to the first lifting tape 40a fed from the take-up portion 15b regardless of the winding diameter. As a result, the guide roller 18 always moves the first lifting tape 40a from the first delivery position A, which is the same position, to the slat 20 regardless of how much the first lifting tape 40a is wound around the winding portion 15b. Send in the direction of.

Further, as shown in FIG. 6B, even in the second lifting tape 40b at both ends inside the room, the second delivery position B sent out from the take-up portion 15b according to the winding amount in the take-up portion 15b is in the radial direction. Variable. In FIG. 6 (b), the dotted line indicates when the winding amount of the second lifting tape 40b is minimum, and the solid line indicates when it is maximum. Therefore, the guide roller 18 is provided in the vicinity of the tape opening 17b, and is provided so that a constant tension is always applied to the second lifting tape 40b sent out from the winding portion 15b regardless of the winding diameter. Thereby, the guide roller 18 always moves the second lifting tape 40b from the first delivery position A, which is the same position, to the slat 20 regardless of how much the second lifting tape 40b is wound around the winding portion 15b. Send in the direction of.

As shown in FIG. 4, the ladder cord 30 includes a pair of warp yarns 31 extending in the height direction of the horizontal blind 10 and a weft yarn 32 provided between the warp yarns 31. The weft 32 supports each slat 20 from below. The weft 32 may be formed of an upper weft and a lower weft in an annular shape, and the slat 20 may be supported by passing the slat 20 between the upper and lower weft.

The ladder cord 30 further includes a pico 33 that is an insertion portion through which the lifting tape 40 is inserted into the warp 31. The pico 33 is an annular body formed by drawing a yarn from the warp 31 when the ladder cord 30 is a knitted string. The pico 33 is provided on the warp 31 located outside the room, and the first lifting tape 40a extending outside the room is inserted through the pico 33. As a result, the lifting tape 40 is restrained from floating by the pico 33 and is supported along the warp 31 of the ladder cord 30. The lifting tape 40 does not necessarily have to be inserted through all the picos 33.

The pico 33 is formed in an annular shape by drawing the yarn from the warp 31 and is formed in an elliptical shape instead of a perfect circle in this embodiment. Specifically, the pico 33 has a hook having a shape in which the major axis of the ellipse intersects the warp yarn 31 instead of along it. Therefore, when the first lifting tape 40a inserted through the pico 33 is inserted through the pico 33, the first lifting tape 40a is often twisted following the hook of the pico 33 and becomes perpendicular to the main surface portion of the slat 20c. A first through hole 51 of the uppermost slat 20a described later rectifies the first lifting tape 40a perpendicular to the main surface portion of the slat 20c so as to be substantially parallel to the main surface portion of the slat 20a. Here, the pico 33 is provided on the warp yarn 31 outside the room of the ladder cord 30 along the first lifting tape 40a, and is provided on the warp yarn 31 inside the room of the ladder cord 30 along the second lifting tape 40b. It is not done.

In the ladder cord 30 as described above, the base end of the warp 31 is fixed to the drum 15 and the tip is fixed to the bottom rail 21 by the tape holder 22. As shown in FIG. 7, the tape holder 22 is provided with an engaging portion 22 a that engages with an engaging groove 21 b on the side surface portion of the bottom rail 21 at an opposite end portion. The tape holder 22 is temporarily fixed by engaging the engaging portion 22a with the engaging groove 21b so as to cover from the bottom surface portion 21c side of the bottom rail 21, and thereafter, the tape holder 22 is fixed to the bottom rail 21 by a fixing member such as a screw. Fixed.

Specifically, as shown in FIG. 7, the tip of the warp 31 of the ladder cord 30 at the center of the slat 20 extending to the outside of the room is located on the bottom rail 21 c of the bottom rail 21 and the tape holder 22. It is sandwiched between. And the front-end | tip part of the warp 31 is fixed when the tape holder 22 is fixed to the bottom face part 21c of the bottom rail 21. As shown in FIG. Further, between the bottom rail 21 and the tape holder 22, the tip of the first lifting tape 40 a is also sandwiched and fixed together with the tip of the warp 31 of the ladder cord 30. The warp 31 of the ladder cord 30 and the first lifting tape 40a are led out from a notch 22b that is notched for leading out the engaging portion 22a of the tape holder 22.

As shown in FIG. 8, the leading ends of the warp yarns 31 of the ladder cord 30 on both ends of the slat 20 extending inside the room are sandwiched between the bottom rail 21 and the tape holder 22 at the bottom surface portion 21 c of the bottom rail 21. It is. And the front-end | tip part of the warp 31 is fixed when the tape holder 22 is fixed to the bottom face part 21c of the bottom rail 21. As shown in FIG. Further, the tip of the second lifting tape 40b is also sandwiched and fixed between the bottom rail 21 and the tape holder 22. The warp 31 of the ladder cord 30 is led out from a notch 22b that is notched for leading out the engaging portion 22a of the tape holder 22.

Further, as shown in FIG. 8, a tape guide member for guiding the drawing position of the two second lifting tapes 40b extending to the inside of the room is provided on the upper surface portion 21a of the bottom rail 21 facing the lowermost slat 20. 24 is attached. The tape guide member 24 is provided with an engaging portion 24a that engages with the side surface portion of the bottom rail 21 at the opposite end portion, and the main surface portion between the opposed engaging portions 24a has a second lifting portion. A guide hole 24b from which the tape 40b is drawn is formed. The guide hole 24b is a rectangular opening having a long side in the short side direction of the upper surface part 21a, and guides the surface of the second lifting tape 40b with a short side close to the long side part of the bottom rail 21. The drawing position of the second lifting tape 40b from the guide hole 24b is the second through hole 52 provided in the slat 20c in the third and subsequent tiers in the slat 20 in an open state substantially parallel to the bottom rail 21. Corresponds directly below. Accordingly, the second lifting tape 40b extends straight from the head box 11 to the bottom rail 21. In particular, the lowermost slat 20 can be tilted smoothly because no extra force is applied by the second lifting tape 40b.

As described above, one first lifting tape 40 a is led out from the first long side 25 a side of the bottom rail 21, and the two second lifting tapes 40 b are the other second long side of the bottom rail 21. Derived from the part 25b side. As a result, the bottom rail 21 is supported by the first lifting tape 40a and the second lifting tape 40b at three locations from both sides, and may be inclined in the front side that is the inside of the room or the rear side that is the outside of the room, that is, the front-rear direction. It is raised and lowered in a stable state.

As shown in FIG. 9, each slat 20 is formed in an elongated rectangular thin plate shape. As shown in FIG. 9A, the uppermost slat 20a is formed with a first through hole 51 serving as a guide portion 50 at the center of one first long side portion 25a located outside the room. ing. The first lifting tape 40a extending outside the room is inserted through the first through hole 51. The first through-hole 51 is a rectangular through-hole that is slightly larger than the cross-sectional shape of the first lifting tape 40a. The first lifting tape 40a is substantially parallel to the main surface portion of the slat 20a, and the drum winding portion 15b. Rectify so that it can be wound according to the winding surface. No through hole is formed in the second long side portion 25b inside the room of the uppermost slat 20a. The first through hole 51 can be easily formed by punching the slat 20a.

As shown in FIG. 9B, the second slat 20b from the top has through holes formed in both the second long side portion 25b inside the room and the first long side portion 25a outside the room. Not.

Further, as shown in FIG. 9C, the third and subsequent slats 20c from the top are formed with second through holes 52 on both end sides of the second long side portion 25b located inside the room. . A second lifting tape 40b extending inside the room is inserted into the second through holes 52. The second through hole 52 is a rectangular through hole that is slightly larger than the cross-sectional shape of the second lifting tape 40b. The second lifting tape 40b is substantially parallel to the main surface portion of the slat 20c, and the drum winding portion 15b. Rectify so that it can be wound according to the winding surface. In the slats 20c in the third and subsequent stages from the top, no through hole is formed in the first long side portion 25a located outside the room. The second through hole 52 can be easily formed by punching the slat 20c.

As shown in FIG. 4, after arranging the slats 20a, slats 20b, and slats 20c in this order from the top, the first lifting tape 40a at the center portion located outside the room has a base end portion of the winding portion of the drum 15 It is fixed to 15b. Next, after being unwound from the tape opening 17b of the head box 11, it is inserted into the first through hole 51 of the uppermost slat 20a, and the slat 20c is inserted between the uppermost slat 20a and the second slat 20b. It is unwound outside. As shown in FIG. 10, the slats 20 c in the third and subsequent stages extend along the warp 31 of the ladder cord 30 and are inserted through the pico 33 of the ladder cord 30, so that the first lifting tape 40 a is loosely moved. To suppress. The first lifting tape 40a does not need to be inserted through all the picos 33. Here, the first to the tenth picos 33 from the top and every fifth pico 33 are inserted thereafter.

The eighth to tenth picos 33 are insertion portions through which the first lifting tape 40a inserted through the first through hole 51 is first inserted. For this reason, these three picos 33 have a large friction with the first lifting tape 40a, and there is a possibility that the yarn constituting the pico 33 is cut by this friction. Therefore, in the portion where the first lifting tape 40a inserted through the first through hole 51 is inserted first, the first lifting tape 40a is inserted through a plurality of, here three, picos 33. Thus, even if one or two pico 33 is damaged, the remaining pico 33 can regulate the state of the first lifting tape 40a. That is, it is possible to prevent the first lifting tape 40 a from moving away from the warp 31 of the ladder cord 30 with the remaining pico 33 that has not been damaged. In addition, in the present embodiment, the first lifting tape 40a is attached to the pico 33, although the first lifting tape 40a may be inserted between the wefts 32 arranged vertically. This prevents the first lifting tape 40a from cutting the weft 32 by friction or the like. And the front-end | tip part of the 1st lifting tape 40a extended to a part outdoor is fixed to the center part of the bottom rail 21 with the tape holder 22. FIG.

Further, as shown in FIG. 4, the second lifting tape 40 b at both end portions inside the room is fixed to the winding portion 15 b of the drum 15 at the base end portion. Next, from the tape opening 17b of the head box 11, it passes outside the uppermost slat 20a and the second slat 20b, and the third slat 20c between the second slat 20b and the third slat 20c. The second through hole 52 is inserted. Thereafter, the second lifting tape 40 b is inserted into the second through hole 52, and the distal end portion is fixed to the both end portions of the bottom rail 21 with the tape holder 22. At this time, as shown in FIG. 8, the second lifting tape 40 b is pulled out from the guide hole 24 b of the tape guide member 24 attached to the upper surface portion 21 a of the bottom rail 21. Therefore, the second lifting tape 40b is inserted into the second through hole 52 in a straight state from the guide hole 24b of the tape guide member 24 of the bottom rail 21 to the tape opening 17b.

As shown in FIGS. 11 and 12, the uppermost slat 20a is provided with a slat retainer 23 at a position where the warp threads 31 of the three ladder cords 30 extend. Also, the slat presser 23 is provided at the position where the warp 31 of the ladder cord 30 on both sides of the slat 20b extends in the second slat 20b from the top. In the

long side portions

25a and 25b, the slat presser 23 is engaged with the weft 32 of the ladder cord 30 so that the

slats

20a and 20b suppress lateral displacement. Further, the slat retainer 23 prevents the warp 31 from being repeatedly contacted with the edges of the

long sides

25a, 25b of the

slats

20a, 20b and being worn and cut. Furthermore, the slat presser 23 suppresses deformation of the slat by relaxing the load applied to the slat from the warp 31. Further, the slat presser 23 reduces friction between the warp 31 and the slat 20, and allows other slats to follow the uppermost slat 20a and smoothly tilt. Even if this slat retainer 23 is provided in the third and subsequent slats 20c, the same effect can be obtained.

Next, an operation method of the horizontal blind 10 configured as described above will be described. As shown in FIGS. 13 and 14, when the operation cord 12 is pulled in one direction, one of the warp threads 31 of the ladder cord 30 is lowered and the other is raised, so that all the slats 20 are tilted in one direction, and solar radiation is generated. It will be in the fully closed state. In this case, on the outside of the room, the first long side portion 25a on the outside of the room of each slat 20 faces downward. Generally, solar radiation is irradiated from above through a window. At this time, the gap between the slats 20 adjacent to each other is inclined from the bottom to the top from the outside of the room to the inside of the room. Therefore, the opening end of the gap outside the room faces downward and is difficult for solar radiation to enter, so that the light shielding property is improved.

At this time, in the slats 20 adjacent to each other, the

long side portions

25a and 25b overlap each other. For example, the first through hole 51 on the outer side of the first long side 25a formed on the uppermost slat 20a is on the lower side and is located on the upper side of the second slat 20b from the upper side. The second long side portion 25b is overlapped and shielded. Further, even in the second through holes 52 formed in the third and subsequent stages, they are shielded by the first long side portion 25a outside the room of the adjacent second slat 20b and the fourth and subsequent slats 20c. Is done. For example, the second through hole 52 of the third-stage slat 20c is located on the upper side and is shielded by the first long side part 25a located on the lower side of the second-stage slat 20b from above. The second through holes 52 formed in the fourth and subsequent slats 20c are also located on the upper side and are shielded by the lower first long side portion 25a adjacent to the upper side of the slats 20c. Thus, the first through hole 51 and the second through hole 52 are shielded by the long side portions of the adjacent slats 20 when the operation cord 12 is pulled in one direction and is fully closed. The horizontal blind 10 has improved light shielding properties by shielding the first through hole 51 and the second through hole 52 when the slat 20 is fully closed.

The horizontal blind 10 can be reverse fully closed by pulling the operation cord 12 in the other direction so that the inclination of the slat 20 is opposite to that in FIGS. 13 and 14. In this case, the second through hole 52 of the third-stage slat 20c from the top is located on the lower side and is shielded by the first long side portion 25a located on the upper side of the fourth-stage slat 20b from the top. However, the first through-hole 51 is not shielded because it is located on the upper side and there is no slat 20 thereon. Also in this case, the 1st through-hole 51 becomes a shadow of the head box 11, and can reduce the incident solar radiation.

Here, as shown in FIGS. 13 and 14, when the slat 20 is fully closed, the first lifting tape 40a on the outside of the room is inserted through the first through hole 51 of the uppermost slat 20a. The second lifting tape 40b inside the room is not inserted into the uppermost slat 20a. Therefore, even when the operation cord 12 is pulled in one direction and the uppermost slat 20a is tilted as shown in FIG. 14, the slat 20a is not attached to the second lifting tape 40b inside the room, which is opposite to the tilting direction. The pulling force F is not received. Accordingly, the uppermost slat 20 a can be smoothly tilted according to the operation of the operation cord 12.

In the second slat 20b from the top, no through hole is provided, and the load of the first lifting tape 40a is not applied to the curved surface of the curved slat 20b. Further, the above-described pulling force F is not applied. Therefore, the slat 20b can be tilted smoothly. Also, the slats 20c in the third and subsequent stages from the top can be smoothly tilted without the load of the first lifting tape 40a being applied to the convex surface of the curved slats 20c.

When lifting the bottom rail 21, the lifting tape 40 is wound around the winding portion 15 b of the drum 15. The first lifting tape 40a outside the room passes through the first through hole 51 of the uppermost slat 20a before being wound around the winding portion 15b of the drum 15, so that it is substantially parallel to the main surface portion of the slat 20a. Thus, the flow is rectified in a state corresponding to the guide surface of the guide roller 18 and the winding surface of the winding portion 15b. Since the first lifting tape 40a is inserted through the pico 33 in the vicinity of the slat 20c at a predetermined distance from the uppermost slat 20a, the first lifting tape 40a is twisted in accordance with the shape of the pico 33, and the main surface portion of the slat 20c. Often become vertical. When the first lifting tape 40a is wound around the winding portion 15b while being twisted, the winding diameter increases by the amount twisted and overlapped, and the same amount of lifting is achieved by the plurality of coaxial winding portions 15b. The tape cannot be wound at the same speed. Furthermore, the first lifting tape 40a is wound in a twisted state, so that the first lifting tape 40a is more easily twisted with a crease or the like. In this respect, the first through hole 51 is configured so that the state of the first lifting tape 40a is the main surface portion of the slat 20a immediately before the first lifting tape 40a is wound around the drum 15 closer to the head box 11 than the portion where the pico 33 is inserted. In parallel with the guide surface of the guide roller 18 and the winding surface of the winding portion 15b. Thereby, the 1st lifting tape 40a is wound up by the winding part 15b, without being twisted.

The second lifting tape 40b inside the room is also inserted into the second through hole 52 from the upper side below the slat 20a in which the first through hole 51 is formed to the third slat 20c, and the state is the main of the slat 20c. The surface is substantially parallel to the surface portion, and is corrected to a state corresponding to the guide surface of the guide roller 18 and the winding surface of the winding portion 15b. Therefore, the second lifting tape 40b is also wound without being twisted by the winding portion 15b of the drum 15. That is, the first lifting tape 40a and the second lifting tape 40b are wound around the drum 15 without being twisted. Accordingly, the three drums 15 can wind up the same amount of the three

lifting tapes

40a and 40b at the same speed, and can prevent the slats 20 from tilting during winding.

The horizontal blind 10 as described above can obtain the effects listed below.
(1) The horizontal blind 10 can reduce the size of the drum 15 by using the lifting tape 40 instead of using the lifting / lowering cord. Furthermore, the head box 11 can be reduced in size. Moreover, even if it uses for a horizontal blind with a full height, it can suppress that the drum 15 or the head box 11 enlarges.

(2) When winding the first lifting tape 40a outside the room around the drum 15, the first lifting tape 40a is placed on the uppermost slat just before the drum 15 closer to the head box 11 than the portion inserted through the pico 33. The first through-hole 51 of 20a is arranged in a state suitable for the winding surface of the winding part 15b. Therefore, the drum 15 can be wound around the winding portion 15b of the drum 15 without twisting the first lifting tape 40a.

(3) Since the second lifting tape 40b on the inner side of the room is also adjusted to a state corresponding to the winding surface of the winding portion 15b by the second through hole 52 from the top to the third slat 20c, without being twisted. It can be wound around the winding portion 15b of the drum 15.

(4) In the uppermost slat 20a, only the first lifting tape 40a is inserted into the first through hole 51, and the second through hole 52 through which the second lifting tape 40b inside the room is inserted is not formed. . Therefore, the uppermost slat 20a can be smoothly tilted according to the operation of the operation cord 12.

(5) The first lifting tape 40a outside the room is only inserted through the first through hole 51 of the uppermost slat 20a, and the lower stage passes outside the

slats

20b and 20c. Therefore, when the first lifting tape 40a is in the fully closed state, the first lifting tape 40a does not contact the curved convex surface of each slat 20 and applies an extra load, and the slat 20 can be smoothly tilted.

(6) Since the first lifting tape 40a is inserted into the first through hole 51 in the uppermost slat 20a, the lateral displacement of the slat 20a can be prevented.

(7) Since the second lifting tape 40b is inserted through the second through hole 52 in the third and subsequent slats 20c, the lateral displacement of the slats 20c can be prevented.

(8) For the second slat 20b from the top, the lateral displacement of the slat 20b can be prevented by engaging the weft 32 of the ladder cord 30 with the slat retainer 23 provided on the slat 20b.

(9) The slat retainer 23 provided on the uppermost slat 20a or the second slat 20b from above prevents the warp 31 and the slat 20a from coming into direct contact repeatedly, and prevents the warp 31 from being disconnected. be able to. Moreover, also about the slat presser 23 other than that, it can prevent that the warp 31 and the slat 20a contact repeatedly, and can suppress that the warp 31 breaks. Further, the slat presser 23 reduces friction between the warp 31 and the slat 20, and allows other slats to follow the uppermost slat 20a and smoothly tilt.

In addition, the horizontal blind 10 as described above can be implemented with appropriate modifications as follows.
As shown in FIG. 15, the lifting tape 40 may not be inserted into the pico 33 provided on the warp 31 of the ladder cord 30. That is, the lifting tape 40 is inserted between the two weft threads 32 of the ladder cord 30 outside the slat 20. In this case, a region surrounded by the two wefts 32 and the side edges of the slats 20 is an insertion portion through which the lifting tape 40 is inserted. Even with such a configuration, the second lifting tape 40b can be surrounded and supported by the two weft threads 32 and the side edges of the slats 20. In this case, the pico 33 can be omitted from the ladder code 30.

The pico 33 is formed with a thread at the knot between the warp 31 and the weft 32 and described as an annular portion. However, a resin-molded annular body may be provided integrally with the warp 31.

The uppermost slat 20a may omit the first through hole 51 to simplify the configuration. In this case, as shown in FIG. 16, the tape opening 17 b from the drum 15 has the same shape as the first through hole 51. Accordingly, the first lifting tape 40a is wound around the winding portion 15b of the drum 15 without being twisted. The tape opening 17b of the second lifting tape 40b may also have the same shape as the first through hole 51. Further, as shown in FIG. 17, the first lifting tape 40a may be sandwiched between a pair of guide rollers 53 in the vicinity of the tape opening 17b so as to adjust the state of the first lifting tape 40a.

· The slat retainer 23 may be provided on any stage of the slat 20. Thereby, it can suppress that the warp 31 of the warp 31 of the ladder cord 30 contacts the slat 20 directly, and is abraded and cut | disconnected. Further, the friction between the warp 31 and the slat 20 is reduced so that the slat 20 can follow and smoothly tilt.

.. Instead of the slat presser 23, a concave notch for engaging the lifting tape 40 may be formed on the side edge of the slat 20. In particular, the slat 20b in the second stage from the top does not pass through any of the two lifting tapes 40, and the slat presser 23 has an important function for preventing the lateral displacement of the slat 20b. Instead of the slat retainer 23 of the second-stage slat 20b, a notch may be used. Thereby, the number of parts can be reduced.

In the horizontal blind 10 described above, the case where the three lifting tapes 40 are arranged along the warp 31 of the three ladder cords 30 has been described, but the number of the lifting tapes 40 and the number of the ladder cords 30 are It is not limited. For example, four ladder cords 30 and four lifting tapes 40 may be used. In a horizontally long horizontal blind, seven ladder cords 30 and four lifting tapes 40 may be used. Further, the ladder cord 30 may be five and the lifting tape 40 may be three.

The first through hole 51 may be provided inside the room of the uppermost slat 20a, and the second through hole 52 may be provided outside the room of the third and subsequent slats 20c.

The first through hole 51 may be provided in the second slat 20b or the third slat 20c as long as it is the upper slat 20. That is, the first through hole 51 only needs to be provided in the upper slat 20 that can be arranged so that the state of the lifting tape 40 wound around the drum 15 is substantially parallel to the main surface portion of the slat 20. The number of slats 20 provided with the first through holes 51 may be plural.

・ The second slat 20b from the top may be omitted. In this case, the slat 20a in which the first through hole 51 is formed and the slat 20c in which the second through hole 52 is formed are adjacent to each other. When the slat 20 is fully closed, the first long side portion 25a provided with the first through hole 51 and the second long side portion 25b of the slat 20c provided with the second through hole 52 overlap. Even in such a case, the first through hole 51 is provided at the center of the long side portion, and the second through hole 52 is provided at both end portions of the long side portion. Even if the side portion 25a and the second long side portion 25b overlap, the positions of the first through hole 51 and the second through hole 52 do not coincide with each other. Therefore, it is possible to prevent the first through hole 51 and the second through hole 52 from overlapping and leaking light.

Incidentally, in the case of a horizontal blind having a large horizontal length, as described above, the number of ladder cords 30 is increased from three and the number of lifting tapes 40 is also increased from three. Accordingly, the bottom rail 21 having the same length as the slat 20 is used. As shown by the dotted line in FIG. 18, the bottom rail 21 having the same length (X) and width (Z) as the slat is used. In this case, the bottom rail 21 tends to be heavier as it gets longer and to be bent by its own weight, with the central portion curved like a bow. When the bottom rail 21 is pulled up in a bent state, the bottom rail 21 is inclined toward the inside of the room or the outside of the room. The plurality of slats 20 stacked on the bottom rail 21 are also thin and easily deformed, and thus bend according to the bending shape of the bottom rail 21. Then, as shown by a dotted line in FIG. 18, the plurality of slats 20 stacked on the bottom rail 21 swell out so as to spill from the bottom rail 21. When it swells to the inside of the room, the design of the surface inside the room, which is noticeable by the user, becomes worse.

In the example of FIGS. 18 and 19, five ladder cords 30 and four lifting tapes 40 are used for a horizontally long horizontal blind. Specifically, in the example of FIG. 19, two first lifting tapes 40a are extended to the outside of the room in the area of the slats 20c after the third stage. Also, two second lifting tapes 40b are extended at both ends inside the room. And the thing which has the width W2 wider than the width W1 between the

long side parts

25a and 25b of the slat 20 is used for the bottom rail 21, and it is trying to raise intensity | strength. Here, for example, W1 is 25 mm and W2 is 35 mm. As a result, the bottom rail 21 has a wide steel material constituting the bottom rail 21 and becomes thicker as the steel material constituting the bottom rail 21 becomes thicker. Thereby, when the bottom rail 21 is pulled up, the inclination of the bottom rail 21 is also suppressed, and the plurality of slats 20 stacked on the bottom rail 21 are stacked straight without spilling from the bottom rail 21 and swelling.

Further, since two first lifting tapes 40a are used, two first through holes 51 are formed in the uppermost slat 20a corresponding to the two first lifting tapes 40a. The two first lifting tapes 40 a are inserted in a state where tension is applied to the two first through holes 51. Further, the first lifting tape 40 a is inserted through the pico 33. Further, here, the hanging position of the first lifting tape 40 a is also regulated by the tape guide member 24. Further, the second lifting tape 40b located outside the first lifting tape 40a in the left-right direction (length (X) direction) is inserted into the second through-hole 52 after the third-stage slat 20c. The second lifting tape 40b whose hanging position is regulated by the tape guide member 24 is inserted into the second through hole 52 in a state where tension is applied. As described above, the first lifting tape 40 a and the second lifting tape 40 b are both tensioned in a state where the hanging position is regulated by the tape guide member 24. Therefore, the first lifting tape 40a and the second lifting tape 40b can regulate the displacement of the slats 20 in the front-rear direction even when the stacked slats 20 are displaced from the bottom rail 21.

In this way, the bottom rail 21 is wide to increase the strength to make it difficult to bend, and in addition, the slat 20 is moved back and forth by the first lifting tape 40a and the second lifting tape 40b in which the hanging position is regulated and tension is applied. Directional deviation is regulated. Therefore, for example, inside the room, the slat 20 is stacked straight on the bottom rail 21 so that the long side of the slat 20 inside the room and the long side of the bottom rail 21 in the room are substantially flush with each other. . Thereby, it can suppress that the designability inside a room deteriorates. Note that the pico 33 of the ladder cord 30 through which the first lifting tape 40a is inserted is formed in a size (diameter) that does not apply unnecessary tension to the slat 20 that is brought closer to the inside of the room.

As shown in FIGS. 20A and 20B, the tape guide member 24 is attached to the upper surface portion 21 a of the bottom rail 21, and the second lifting tape 40 b is pulled out at the guide hole 24 b of the tape guide member 24. It can be adjusted according to the size. That is, as shown in FIG. 20 (a), the distance L1 and the distance L2 from the opposing engaging portion 24a to the short side 24c of the guide hole 24b for guiding the second lifting tape 40b may be the same. As shown in 20 (b), the distance L1 may be longer than the distance L2. Here, the tape guiding member 24 of FIG. 20A is used for the second lifting tape 40b inside the room, and the tape guiding member 24 of FIG. 20B is used for the first lifting tape 40a outside the room. . Note that the tape guide member 24 may make the distance L2 longer than the distance L1.

19, the tape guide member 24 is provided not only at the drawing position of the second lifting tape 40b but also at the drawing position of the first lifting tape 40a. Thereby, it can also prevent that the 1st lifting tape 40a moves to the front-back direction.

Moreover, the swelling of the slat 20 shown in FIG. 18 can be solved by configuring it as shown in FIGS. As shown in FIG. 21, in this example, five ladder cords 30 and five lifting tapes 40 are provided. Specifically, two first lifting tapes 40a are extended outside the room in the region of the third and subsequent slats 20c. Also, two second lifting tapes 40b are extended at both ends inside the room. Furthermore, one third lifting tape 40c is extended at the center inside the room.

The third lifting tape 40c extending to the center inside the room is connected to the bottom rail 21 which is a weight member from the drum 15 and is in a state where tension is applied, so that the swelling of the slat 20 shown in FIG. It suppresses that the stacked slats 20 are displaced. The warp 31 of the ladder cord 30 is not provided with the pico 33 to prevent the design inside the room from being deteriorated.

The insertion portion 35 through which the third lifting tape 40c is inserted is provided between the weft threads 32 of the ladder cords 30 arranged vertically, and the third lifting tape 40c is inserted into the insertion portion 35 between the weft threads 32 arranged vertically. The Specifically, when the third lifting tape 40c is inserted into the insertion part between the wefts 32 from one side in the left-right direction (length (X) direction) of the warp 31 to the other side, a plurality of stages, for example, The warp 31 is inserted from the other side into one side through the next insertion part 35 which is spaced by 5 to 7 steps. As a result, the third lifting tape 40c is restrained from floating without using the pico 33 and the side edge of the slat 20 and the weft 32 of the ladder cord 30 without deteriorating the design.

In the example of FIGS. 21 and 22, the bottom rail 21 can suppress the displacement of the slat 20 by the third lifting tape 40c, so that the width W1 between the

long side portions

25a and 25b of the slat 20 is substantially the same. The same can be used. The bottom rail 21 may have a width W2 wider than the width W1 as shown in FIG. 19 to increase the strength.

・ Others can also be applied to electric blinds.

According to the embodiment and the modification thereof, the following technical idea is further derived.
(Appendix 1)
A head box,
A plurality of slats lined up and down,
A ladder cord suspended from the head box and supporting each of the slats so that the tilt adjustment is possible;
A bottom rail located on the lower side of the lowermost slat;
A lifting tape that is suspended from the head box and moves up and down the bottom rail;
A winding unit that winds the lifting tape, and a winding mechanism that includes a guide roller that guides the lifting tape;
The guide roller is always in contact with the lifting tape drawn from the winding portion regardless of the winding diameter of the lifting tape on the drum, and the lifting tape is drawn from the same position.
According to the configuration of Supplementary Note 1, the lifting tape can be pulled out from the same position regardless of the winding amount of the winding portion.

(Appendix 2)
A head box,
A plurality of slats lined up and down,
A ladder cord suspended from the head box and supporting each of the slats so that the tilt adjustment is possible;
A bottom rail located on the lower side of the lowermost slat;
A lifting tape that is suspended from the head box and moves up and down the bottom rail,
The lifting tape is inserted through a through-hole provided at a position biased toward one long side of the slat.
According to the structure of the above supplementary note 2, when the slat is in the fully closed state, the through hole can be shielded by the long side portion of the adjacent slat, and the light shielding property can be improved.

(Appendix 3)
A head box,
A plurality of slats lined up and down,
A ladder cord suspended from the head box and supporting each of the slats so that the tilt adjustment is possible;
A bottom rail located on the lower side of the lowermost slat;
A first lifting tape that is suspended from the head box, extends to one first long side of the slat, and moves up and down the bottom rail;
The second rail is suspended from the head box and extends to the other second long side facing the first long side of the slat, and the bottom rail is raised and lowered in cooperation with the first lifting tape. With 2 lifting tapes,
The slat includes a first slat having a first through hole formed in a biased manner on the first long side portion, and a second slat having a second through hole formed in a biased manner on the second long side portion. And a third slat located between the first slat and the second slat and having no through-hole formed therein,
The first lifting tape is inserted through the first through hole, and the second lifting tape is inserted through the second through hole.
According to the configuration of Supplementary Note 3, there is no slat through which both of the lifting tapes are inserted. Therefore, any slat can be smoothly tilted by the ladder cord.

(Appendix 4)
A head box,
A plurality of slats lined up and down,
A ladder cord suspended from the head box and supporting each of the slats so that the tilt adjustment is possible;
A bottom rail located on the lower side of the lowermost slat;
A lifting tape that is suspended from the head box and moves up and down the bottom rail;
A tape guide member that guides the lifting tape from the fixed portion where the lifting tape is fixed to the bottom rail to the upper surface of the bottom rail;
Formed at a position biased to one long side of the slat, and a through-hole through which the lifting tape is inserted,
The lifting blind is pulled out by the tape guide member from a position almost immediately below the through hole.
According to the structure of the above supplementary note 4, when the lifting tape is inserted into the through hole of the slat, the lifting tape can be led out from the bottom rail almost directly below the through hole. Thereby, the lifting tape is almost straight and the slats can be maintained in an aligned state. And it can tilt smoothly by making each slat follow.

(Appendix 5)
A head box,
A plurality of rectangular slats arranged in a vertical direction,
A ladder cord suspended from the head box and supporting each of the slats so that the tilt adjustment is possible;
A bottom rail located on the lower side of the lowermost slat;
A lifting tape that is suspended from the head box and moves up and down the bottom rail;
An insertion portion through which the lifting tape is inserted along the ladder cord,
The ladder cord includes a pair of warp yarns extending in the ascending / descending direction, and a weft yarn provided between the pair of warp yarns,
The insertion portion is between wefts arranged in the lifting direction between a pair of warp yarns extending in the lifting direction of the ladder cord,
The lifting tape extends along the warp yarn, and is inserted into the insertion portion from one side in the left-right direction (length (X) direction) of the warp yarn to the other side.
According to the configuration of Supplementary Note 5, it is possible to suppress the lifting tape from floating with respect to the warp yarn of the ladder cord.

(Appendix 6)
A head box,
A plurality of slats lined up and down,
A ladder cord suspended from the head box and supporting each of the slats so that the tilt adjustment is possible;
A bottom rail located on the lower side of the lowermost slat;
A lifting tape that is suspended from the head box and moves up and down the bottom rail,
The horizontal blind, wherein a width between one long side of the bottom rail and the other long side is wider than a width between one long side and the other long side of the slat.
According to the configuration of Supplementary Note 6, the bottom rail is less likely to be bent due to its own weight as the strength is increased, and the bottom rail can be prevented from tilting in the front-rear direction when the bottom rail is pulled up. As a result, the plurality of slats stacked on the bottom rail can be stacked straight without spilling from the bottom rail, thereby improving the design.

DESCRIPTION OF SYMBOLS 10 ... Horizontal blind, 11 ... Head box, 12 ... Operation code, 13 ... Operation mechanism, 13a ... Housing, 14 ... Shaft, 15 ... Drum, 15b ... Winding portion, 16 ... support member, 16a ... rotation support portion, 17a ... cord opening, 17b ... tape opening, 17c ... drawing piece, 18 ... guide roller, 20 ... Slat, 20a ... Top slat, 20b ... Second slat from the top, 20c ... Slat after the third tier, 21 ... Bottom rail, 21a ... .Upper surface portion, 21b ... engagement groove. 21c ... bottom part, 22 ... tape holder, 22a ... engagement part, 22b ... notch part, 23 ... slat presser, 24 ... tape guide member, 24a ... engagement Part, 24b ... guide hole, 24c ... short side, 25a ... first long side part outside the room, 25b ... second long side part inside the room, 30 ... ladder cord, 31 ... warp, 32 ... weft, 33 ... pico, 35 ... insertion part, 40 ... lifting tape, 40a ... first lifting tape outside the room, 40b ... inside the room 2nd lifting tape, 40c ... 3rd lifting tape, 50 ... guide part, 51 ... 1st through-hole, 52 ... 2nd through-hole, 53 ... guide roller.

Claims

A head box,
A plurality of slats lined up and down,
A ladder cord suspended from the head box and supporting each of the slats so that the tilt adjustment is possible;
A bottom rail located on the lower side of the lowermost slat;
A lifting tape that is suspended from the head box and moves up and down the bottom rail;
An insertion part through which the lifting tape is inserted along the ladder cord;
A guide that is disposed closer to the head box than the insertion portion and guides the main surface of the lifting tape along the extending direction of the lifting tape so as to conform to the winding surface of the winding portion of the lifting tape. Horizontal blinds with parts.
The horizontal blind according to claim 1, wherein the guide portion is a through-hole formed in the slat.
The horizontal blind according to claim 2, wherein the through hole is formed in the slat located at the uppermost stage.
The insertion portion is an annular body supported by the ladder cord,
The horizontal blind according to any one of claims 1 to 3, wherein the annular bodies are arranged along the ascending / descending direction, and the lifting tape is inserted through the annular bodies.
The lifting tape is a first lifting tape;
The guide portion is a first through-hole through which the first lifting tape is inserted, and is the first through-hole formed at a position biased toward one long side of the slat,
A second lifting tape that is suspended from the head box and moves up and down in cooperation with the first lifting tape;
The main surface of the second lifting tape conforms to the winding surface of the winding portion along the extending direction of the second lifting tape on the lower side of the slat in which the first through hole is formed. The second through hole guided to the second slat, wherein the second through hole is formed at a position biased toward the other long side portion of the slat. Horizontal blind.
The horizontal blind according to claim 5, wherein the plurality of slats include a slat into which neither the first lifting tape nor the second lifting tape is inserted.
The first through hole and the second through hole are provided in a shifted manner in the long side direction of the slat,
When the plurality of slats are fully closed, the first through hole is shielded by one long side portion of the adjacent slat, and the second through hole is shielded by the other long side portion of the adjacent slat. The horizontal blind according to claim 5 or 6.
The head box is provided with the winding portion for winding the lifting tape, and a guide roller for guiding the lifting tape,
2. The guide roller is always in contact with the lifting tape drawn from the winding portion regardless of the winding diameter of the lifting tape at the winding portion, and the lifting tape is drawn from the same position. The described horizontal blind.
The horizontal blind according to claim 1, wherein the bottom rail has a width between one long side and the other long side wider than a width between one long side and the other long side of the slat.