JP6906896B2 - Horizontal blinds - Google Patents

Description

The present invention relates to horizontal blinds.

Some horizontal blinds raise 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 having a high overall height, the lifting tape also becomes long, and the winding diameter of the lifting tape increases, so that the winding drum also becomes large. Along with this, the head box in which the drum is arranged also becomes large.

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

The horizontal blind that solves the above problems includes a head box, a plurality of slats arranged along the elevating direction, a ladder cord suspended from the head box and supporting each of the slats in a tilt-adjustable manner, and the head. A lifting tape that is suspended from the box and raises and lowers the slats, an insertion portion through which the lifting tape is inserted along the ladder cord, and an insertion portion that is arranged closer to the head box than the insertion portion and of the lifting tape. It is provided with a guide portion that guides the main surface of the lifting tape along the extending direction so as to conform to the winding surface of the winding portion of the lifting tape.

According to the above configuration, by using the lifting tape, it is possible to reduce the size of the winding portion for winding the lifting tape, for example, provided in the head box. As a result, the total height can be increased. Further, since a guide portion for guiding the surface of the lifting tape is provided before winding the lifting tape in the head box, it is possible to prevent the lifting tape from being twisted and wound even if it becomes long. Can be done.

In the horizontal blind, the guide portion may be formed by a through hole formed in the slats.
According to the above configuration, the guide portion can be easily formed by the through hole.

In the horizontal blind, the through hole may be formed in the slats located at the uppermost stage.
According to the above configuration, the lifting tape can be guided immediately before being wound into the head box by the winding portion, and the occurrence of twisting of the lifting tape can be further suppressed.

In the horizontal blind, the insertion portion is an annular body supported by the ladder cord, and the annular bodies may be arranged along the elevating direction and the lifting tape may be inserted. ..
According to the above configuration, the annular body can be handled integrally with the ladder cord.

In the horizontal blind, a bottom rail located below the slats in the lowermost stage is further provided, the lifting tape is a first lifting tape, and the first lifting tape is raised and lowered by raising and lowering the bottom rail. The slat can be raised and lowered, and the guide portion can be a first through hole formed at a position deviated toward one long side of the slat through which the first lifting tape is inserted. The horizontal blind is further suspended from the head box, and the bottom rail is raised and lowered in cooperation with the first lifting tape. The second lifting tape and the lower stage of the slat in which the first through hole is formed. On the side, 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 slats is guided. The second through hole formed at an uneven position may be provided.
According to the above configuration, the plurality of slats can be raised and lowered in a stable state.

In the horizontal blind, the plurality of slats may be provided with slats through which neither the first lifting tape nor the second lifting tape is inserted.
According to the above configuration, the plurality of slats can be tilted and opened and closed reliably.

In the horizontal blind, the first through hole and the second through hole are provided so as to be offset in the long side direction of the slats, and when the plurality of slats are fully closed, the first through hole is provided. May be shielded by one long side of the adjacent slats and the second through hole may be shielded by the other long side of the adjacent slats.
According to the above configuration, when the slats are fully closed, it is possible to prevent the positions of the first through hole and the second through hole from matching with each other and causing light leakage.

In the horizontal blind, the head box may be provided with a 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 pulled out from the winding portion regardless of the winding diameter of the lifting tape in the winding portion, and the lifting tape is pulled out from the same position. ..
According to the above configuration, the delivery position from the winding unit to the outside of the head box can be the same regardless of the winding diameter at the winding unit.

In the horizontal blind, a bottom rail may be provided below the slat at the bottom. In this case, the width between one long side and the other long side of the bottom rail is formed wider than the width between one long side and the other long side of the slats.
According to the above configuration, the slats can be stacked so as not to spill on the bottom rail.

In the horizontal blind, the guide portion may have a range in which the displacement of the lifting tape is restricted to be narrower than that of the insertion portion.
In the horizontal blind, the guide portion may be provided at a position separated from the delivery position of the lifting tape in the winding portion.
In the horizontal blind, the guide portion may be provided at a position separated from the head box in the direction of the insertion portion.
In the horizontal blind, the guide portion is provided in the direction of the center line that passes through the center between the long sides of the slats and is parallel to the long sides, rather than the position of the insertion portion. You may do it.
In the horizontal blind, the guide portion may be formed of a rigid body, and the insertion portion may be formed of a soft body.
In the horizontal blind, a plurality of the guide portions may be arranged between the insertion portion and the winding portion.
In the horizontal blind, a support member for arranging the take-up portion in the head box may be further provided, and the guide portion may be provided on the bottom surface of the support member close to the slat.

According to the above configuration, the winding unit can be downsized.

The perspective view which shows the front structure of the horizontal blind. Rear view of the horizontal blinds as seen from the outside of the room. Front view of the horizontal blinds from the inside of the room. Side view of horizontal blinds. It is a figure which shows the support member provided with the drum for winding 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 for winding the lifting tape extending to the outside of the room, and (b) is the positional relationship between the drum and the guide roller for winding the lifting tape extending to the inside of the room. The figure which shows. A perspective view showing a fixed state of the lifting tape and the ladder cord extending to the outside of the room. A perspective view showing a fixed state of the lifting tape and the 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 slat. A perspective view showing a state in which a lifting tape is inserted through a pico. (A) is a plan view of the main part showing the relationship between the first through hole and the first lifting tape, and (b) is a plan view of the main part showing the relationship between the slats, pico and the first lifting tape. A perspective view showing a slat holder outside the room. A perspective view showing a slat holder inside the room. Front view of a horizontal blind with fully closed slats. Side view of a horizontal blind with fully closed slats. The plan view which shows the modification which supported the lifting tape by the weft of a ladder cord. (A) to (c) are diagrams showing a modified example of the insertion portion, (a) shows an example in which the insertion portion is composed of recesses, and (b) is an example in which the insertion portion is composed of an insertion hole and a slit. (C) shows an example composed of a pair of guide pieces. FIG. 5 is a perspective view showing a modified example in which the tape opening of the head box has the same shape as the first through hole instead of the first through hole of the uppermost slat. The perspective view which shows the modification which provided the pair of guide rollers in place of the 1st through hole of the uppermost slat. The perspective view which shows the modification which attaches the guide member to a support member. The side view which shows the modification which arranged the guide roller on the bottom surface of a head box. Cross-sectional view of the main part of the horizontal blind with the bottom rail wider than the slats. A plan view showing the positional relationship between the slats, the ladder cord, and the lifting tape. (A) and (b) are cross-sectional views of the bottom rail and the tape guide member. The plan view which shows the positional relationship of the slats of the horizontal blind provided with the 3rd lifting tape, the ladder cord, and the lifting tape. FIG. 25 is a front view of a main part of the horizontal blind shown in FIG. It is sectional drawing of the main part which shows the deformation example which the direction of a slat is turned upside down, and shows the state which the slat is open. It is sectional drawing of the main part which shows the deformation example which turned upside down the slat, and shows the state which the slat is fully closed. The figure which shows the modification which guides a lifting tape extending inside a room by a guide part of a tape opening. A side view of a horizontal blind with the first through hole omitted.

Hereinafter, the 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 tilts and adjusts a head box 11 attached to a mounting portion such as a ceiling, a window frame, a curtain box, a plurality of slat 20s that shield solar radiation, and slat 20. It includes a ladder cord 30 that can support it, and a lifting tape 40 that raises and lowers a plurality of slats 20. Further, the horizontal blind 10 is provided with a guide portion 50 for guiding the lifting tape 40.

The slats 20 are formed of a synthetic resin plate, a metal plate such as stainless steel, or the like, and are formed in the shape of an elongated rectangular thin plate, and the upper surface portion is an arcuate convex surface portion. The slats 20 may be formed of a wooden board. The slat 20 is made of a rigid body as compared with a soft body such as a ladder cord 30 or a lifting tape 40 made of a tape or a cord. The plurality of slats 20 are arranged along the height (elevation) direction (Y), and are supported by a ladder cord 30 suspended from the head box 11 so as to be tilt-adjustable. Below the bottom slat 20, a bottom rail 21 having substantially the same length (X) as the slat 20 is arranged. The bottom rail 21 is a weight member that maintains a plurality of slats 20 in a lowered state. The bottom rail 21 has substantially the same width (Z) as the slat 20, and when the bottom rail 21 is pulled up, a plurality of slat 20 are stacked on the bottom rail 21. The tip of the ladder cord 30 is fixed to the bottom rail 21. Further, the lifting tape 40 sent out 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 synchronously rotating the plurality of drums, and the like are arranged. In the head box 11, an operation code 12 forming a part of an operation mechanism 13 for tilting and raising / lowering the slat 20 is unwound inside the room.

When the operation code 12 is pulled in one direction with a plurality of slats 20 lowered, the pulley of the operation mechanism 13 rotates and the drum for winding the lifting tape 40 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 brought close to each other and overlapped with each other by raising the bottom rail 21. Further, 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 cords 30 are arranged near both ends in the longitudinal direction orthogonal to the elevating direction of the plurality of slats 20, and are central in the longitudinal direction. One is provided in the above, 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 slats 20 in the longitudinal direction extends to the outside of the room, and two lifting tapes 40 arranged near both ends of the slats 20 in the longitudinal direction are inside the room. Extends to. Hereinafter, the lifting tape on the outside of the room will be referred to as the first lifting tape 40a, and the lifting tape on the inside of the room will be referred to as the second lifting tape 40b.

The tip of the first lifting tape 40a on the outside of the room is fixed to the center of the long side of the bottom rail 21 on the outside of the room by a tape holder 22 together with the tip of the warp 31 of the ladder cord 30. As shown in FIG. 4, the tips of the two second lifting tapes 40b inside the room are attached to both ends of the long sides of the bottom rail 21 inside the room by the tape holder 22 together with the tips 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 raising / lowering the horizontal blind 10 on the inner surface of the room. The operating mechanism 13 has a pulley, a gearbox, a shaft body 14, and the like in the housing 13a. An annular operation cord 12 is bridged 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 the shaft body 14 is provided with three drums 15 according to the number of ladder cords 30 and lifting tapes 40. By making the three drums 15 that serve as the winding mechanism of the lifting tape 40 coaxial, they can rotate in synchronization. That is, the operating mechanism 13 can wind or feed the three lifting tapes 40 at the same speed. As shown in FIGS. 5A and 5B, each drum 15 is provided with a take-up portion 15b to which a ladder cord 30 is connected and a lifting tape 40 is wound. A shaft body 14 is inserted in the center of each drum 15. The winding portion 15b has a cylindrical shape, and the outer peripheral surface thereof is a winding surface, and the flat and thin lifting tape 40 is wound without twisting or wrinkling. That is, the lifting tape 40 is wound so that one main surface of the opposing surfaces of the tape body overlaps with the winding surface in parallel. 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 the concave rotary support portion 16a. Further, the support member 16 is provided with a cord opening 17a on which the ladder cord 30 is suspended from the drum 15 and a tape opening 17b to which the lifting tape 40 is sent out on the bottom surface of the uppermost stage near the slat 20. .. When the support member 16 is arranged in the head box 11, the cord opening 17a and the tape opening 17b face the uppermost slat 20a from the bottom surface of the head box 11. The cord opening 17a is composed of an elongated hole extending from the front edge inside the room to the trailing edge outside the room of the support member 16. The cord opening 17a is provided with a pair of squeezing pieces 17c for squeezing the two warp threads 31 constituting the ladder cord 30 inward in the front-rear direction. The pair of squeezing pieces 17c is formed by inserting two warp threads 31 constituting the ladder cord 30 from the squeezing pieces 17c into the inside of the squeezing pieces 17c and narrowing the outlets so that the two warp threads 31 are wound up by the slats 20 when the drum 15 is wound up. It prevents you from returning to the side. Further, two tape openings 17b are provided, one for the first lifting tape 40a for outdoor use and the other for the second lifting tape 40b for indoor use, so that parts can be shared. The tape opening 17b has a rectangular shape, and the length of the short side is set to be substantially the same as the width of the lifting tape 40. As a result, the tape opening 17b regulates the lifting tape 40 from being displaced in the direction parallel to the winding surface of the winding portion 15b. Further, as the slats 20, slats having different dimensions in the width (Z) direction depending on the product size of the horizontal blind are used. For example, there are 25 mm wide slat 20 and 35 mm wide slat 20. The tape opening 17b is set to a size that allows the lifting tape 40 from the winding portion 15b to be inserted regardless of which slats 20 are used.

By the way, when the lifting tape 40 is wound around the winding portion 15b, the winding diameter differs depending on the winding amount, and the position of the lifting tape 40 sent out from the tape opening 17b differs. Here, as shown in FIGS. 6A and 6B, a guide roller 18 composed of a pulley or the like is provided between the drum 15 and the tape opening 17b. The guide roller 18 as a guide portion is always provided at a position where it comes into contact with the lifting tape 40, so that the first delivery position A of the lifting tape 40 to be sent out is made constant. Specifically, as shown in FIG. 6A, in the first lifting tape 40a in the central portion outside the room, the second delivery position B to be fed from the winding portion 15b is set according to the winding amount at the winding portion 15b. It is variable in the radial direction of the drum 15. In FIG. 6A, the dotted line is when the winding amount of the first lifting tape 40a is the minimum, and the solid line is when the solid line is the maximum. Therefore, the guide roller 18 is provided in the vicinity of the tape opening 17b so that a constant tension is always applied to the first lifting tape 40a sent out from the winding portion 15b regardless of the winding diameter. As a result, the guide roller 18 always slats the first lifting tape 40a from the first delivery position A, which is the same position, regardless of how much the first lifting tape 40a is wound around the winding portion 15b. Try to send in the direction of. That is, the first lifting tape 40a is smoothly delivered by the guide roller 18 to the tape opening 17b and the first through hole 51 of the slats 20a. Since the first delivery position A of the tape opening 17b is set to the same position by the guide roller 18, the length of the long side in the width (Z) direction can be shortened and the opening can be made smaller. Further, the second delivery position B of the first lifting tape 40a (the position where the first lifting tape 40a and the winding portion 15b are separated from each other) and the first through hole of the uppermost slat 20a are provided so as to be separated from each other. Has been done. Further, the first through hole 51 is arranged at a position separated from the head box 11 in the direction of the pico 33. As a result, the traveling path of the first lifting tape 40a from the winding portion 15b can be sequentially guided to the first through hole of the uppermost slat 20a without being sharply bent.

Further, as shown in FIG. 6B, even in the second lifting tape 40b at both ends inside the room, the second delivery position B to be fed from the winding portion 15b according to the winding amount at the winding portion 15b is in the radial direction. Variable to. In FIG. 6B, the dotted line indicates the time when the winding amount of the second lifting tape 40b is the minimum, and the solid line indicates the time when the solid line is the maximum. Therefore, the guide roller 18 is provided in the vicinity of the tape opening 17b 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. As a result, the guide roller 18 always slats the second lifting tape 40b from the first delivery position A, which is the same position, regardless of how much the second lifting tape 40b is wound around the winding portion 15b. Try to send in the direction of.

The guide roller 18 may be arranged at a position where the angle formed by the entry side and the delivery side of the lifting tape 40 is an obtuse angle, may be arranged at an acute angle, or may be arranged at a right angle. It may be arranged.

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

The ladder cord 30 further includes a pico 33, which is an insertion portion through which the lifting tape 40 is inserted, in the warp 31. The pico 33 is an annular soft body formed by pulling out a thread from the warp thread 31 when the ladder cord 30 is a braided string. The pico 33 is provided on the warp thread 31 located outside the room, and the first lifting tape 40a extending outside the room is inserted through the pico 33. As a result, since the pico 33 is a soft body, the first lifting tape 40a is suppressed from being idled by the pico 33 while being slightly displaced in the length (X) direction and the width (Z) of the slats 20. It is supported along the warp 31 of the ladder cord 30. The lifting tape 40 does not necessarily have to be inserted through all pico 33.

The pico 33 is formed in an annular shape by pulling out a thread from the warp thread 31 and is formed in an elliptical shape instead of a perfect circle in the present embodiment. Specifically, the pico 33 has a habit that the long axis of the ellipse intersects the length direction (X) of the slat 20 rather than along the length direction (X) of the slat. In addition, it has a habit that the long axis intersects the warp thread 31. Therefore, when the first lifting tape 40a, which is sent out from the head box 11 in parallel with the main surface portion of the slat 20 and is inserted into the pico 33, is inserted into the pico 33, it is twisted according to the habit of the pico 33, and the slat 20c It is often in a state perpendicular to the main surface. The first through hole 51 of the uppermost slat 20a, which will be 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 31 on the outside of the room of the ladder cord 30 along the first lifting tape 40a, and is provided on the warp 31 on the inside of the room of the ladder code 30 along the second lifting tape 40b. Not done.

In the ladder cord 30 as described above, the base end portion of the warp thread 31 is fixed to the drum 15, and the tip end portion 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 22a that engages with the engaging groove 21b on the side surface portion of the bottom rail 21 at the opposing ends. The tape holder 22 is temporarily fixed by engaging the engaging portion 22a with the engaging groove 21b so as to cover the bottom rail 21 from the bottom surface portion 21c side, and then is temporarily fixed to the bottom rail 21 by a fixing member such as a screw. It is 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 the bottom rail 21 and the tape holder 22 at the bottom surface 21c of the bottom rail 21. It is sandwiched between. The tip of the warp 31 is fixed by fixing the tape holder 22 to the bottom surface 21c of the bottom rail 21. Further, between the bottom rail 21 and the tape holder 22, the tip of the warp 31 of the ladder cord 30 and the tip of the first lifting tape 40a are sandwiched and fixed. The warp 31 of the ladder cord 30 and the first lifting tape 40a are led out from a notch 22b cut out for leading out the engaging portion 22a of the tape holder 22. That is, the warp 31 of the ladder cord 30 and the first lifting tape 40a are derived from the side edge portion of the bottom rail 21.

As shown in FIG. 8, the tip of the warp 31 of the ladder cord 30 on both ends of the slats 20 extending inside the room is sandwiched between the bottom rail 21 and the tape holder 22 at the bottom surface 21c of the bottom rail 21. Is done. The tip of the warp 31 is fixed by fixing the tape holder 22 to the bottom surface 21c of the bottom rail 21. Further, the tip end portion 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 cut out for leading out the engaging portion 22a of the tape holder 22.

Further, as shown in FIG. 8, a tape guide member that guides the pull-out position of the two second lifting tapes 40b extending inside the room on the upper surface portion 21a facing the lowermost slat 20 of the bottom rail 21. 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 of the main surface portion arranged on the upper surface portion of the bottom rail 21, and is engaged with each other. A guide hole 24b from which the second lifting tape 40b is pulled out is formed in the main surface portion between the portions 24a. The guide hole 24b is a rectangular opening having a long side in the short side direction of the upper surface portion 21a, and is a first guide portion 24c composed of a short side close to the long side portion of the bottom rail 21 and a second lifting tape. It guides the surface of 40b and regulates the pull-out position of the upper surface portion 21a in the short side direction. Further, the long side of the guide hole 24b constitutes the second guide portion 24d, and regulates the positional deviation of the upper surface portion 21a in the longitudinal direction. The position of pulling out the second lifting tape 40b from the guide hole 24b is the second through hole 52 provided in the slat 20c of the third and subsequent stages from the top in the slat 20 in an open state substantially parallel to the bottom rail 21. Corresponds directly under. As a result, 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 smoothly tilted without applying an extra force due to the second lifting tape 40b.

As described above, one first lifting tape 40a is led out from the first long side portion 25a side of the bottom rail 21, and the two second lifting tapes 40b are the other second long side of the bottom rail 21. It is 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 can be tilted in the front side inside the room or the rear side outside the room, that is, in the front-rear direction. It is lifted and lowered in a stable state.

As shown in FIG. 9, each slat 20 is formed in an elongated rectangular thin plate shape, one surface is formed of an arcuate convex surface portion, and the other surface is formed of a concave surface portion. Then, as shown in FIG. 9A, in the uppermost slat 20a, a first through hole 51 serving as a guide portion 50 is formed in the central portion of one of the first long side portions 25a located outside the room. ing. A first lifting tape 40a extending to the outside of the room is inserted into the first through hole 51. The first through hole 51 is a rectangular through hole slightly larger than the cross-sectional shape of the first lifting tape 40a, and the first lifting tape 40a is substantially parallel to the main surface portion of the slats 20a, and the winding portion of the drum 15 is formed. Rectify so that it is wound along the winding surface of 15b. The first through hole 51 is provided in the direction of the center line O that passes through the center between the long side portions 25a and 25b of the slats 20a and is parallel to the long side portions 25a and 25b from the position of the pico 33. The long side of the first through hole 51 is formed so as to be parallel to the long side portions 25a and 25b. Further, 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 in the slats 20a by punching.

Further, as shown in FIG. 9B, in the slat 20b in the second stage from the top, through holes are 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 slat 20c in the third and subsequent stages from the top has second through holes 52 formed 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 these second through holes 52. The second through hole 52 is a rectangular through hole 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 slats 20c, and the winding portion 15b of the drum. Rectify so that it is wound according to the winding surface of. Then, in the slats 20c of the third and subsequent stages from the top, no through holes are formed in the first long side portion 25a located on the outside of the room. The second through hole 52 can be easily formed in the slats 20c by punching. The second through hole 52 is arranged at a hanging position of the second lifting tape 40b guided by the guide roller 18 from the head box 11.

As shown in FIG. 11A, the first through hole 51 is a rectangular through hole slightly larger than the cross-sectional shape, with the width (Z) direction of the slat 20a as the short side, and the length of the slat 20a. (X) is the long side. The long side spacing 51a between the long sides of the first through hole 51 regulates the displacement of the slat 20a of the first lifting tape 40a inserted through the first through hole 51 in the width (Z) direction. Further, the short side spacing 51b between the long sides of the first through hole 51 regulates the displacement of the slat 20a in the length (X) direction. That is, since the first through hole 51 is formed by drilling a rigid slat 20a, the range in which the first lifting tape 40a to be inserted can be displaced is set to an extremely narrow range, and the first through hole 51 is reliably guided to the winding portion 15b. I am trying to be done. As shown in FIG. 11B, on the other hand, the pico 33 is a soft body. Therefore, the first lifting tape 40a inserted through the pico 33 can be slightly displaced in the length (X) direction and the width (Z) of the slat 20 within the range in which the pico 33 can be displaced with respect to the warp thread 31. The range in which the first lifting tape 40a is displaced is narrower when it is inserted through the first through hole 51 than when it is inserted through the pico 33.
Further, the first through hole 51 is located away from the winding portion 15b so that the traveling path of the first lifting tape 40a is not extremely bent between the first through hole 51 and the winding portion 15b. do.

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 in the central portion located outside the room has a winding portion of the drum 15 at the base end. It is fixed at 15b. Next, after being sent out 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 sent out. Then, as shown in FIG. 10, in the portion of the slat 20c from the third stage onward, it extends along the warp 31 of the ladder cord 30 and is inserted into the pico 33 of the ladder code 30 so that the pico 33 can be displaced. The first lifting tape 40a is prevented from floating beyond the above. The first lifting tape 40a does not have to be inserted through all the pico 33, and here, the eighth to tenth pico 33 from the top and then every five pico 33 are inserted. In this way, the first lifting tape 40a is prevented from being inserted into the pico 33 at the positions of the slat 20 having a plurality of stages from the top. The first lifting tape 40a is twisted by being inserted into the pico 33, but the twisting can be loosened by preventing the first lifting tape 40a from being inserted into the pico 33 at the positions of the slat 20 having a plurality of stages from the top. As a result, the friction between the first lifting tape 40a and the pico 33 can be reduced.
The first lifting tape 40a is also inserted into the pico 33 corresponding to the positions of the lowermost slat 20c located adjacent to the bottom rail 21 and the upper slat 20c of the lowermost slat 20c. do not have. As a result, the twist of the first lifting tape 40a inserted through the pico 33 can be gently returned before entering the guide hole 24b of the tape guide member 24.

Although it is not inserted into the pico 33 at the positions of the slat 20 having a plurality of stages from the top, the first lifting tape 40a inserted through the first through hole 51 is first inserted into the eighth to tenth pico 33. It is an insertion part. Therefore, these three pico 33 have a large frictional resistance with the first lifting tape 40a as compared with the subsequent pico 33, and the thread constituting the pico 33 may be cut by this frictional resistance. Therefore, in the portion where the first lifting tape 40a inserted through the first through hole 51 is first inserted, the first lifting tape 40a is inserted into a plurality of, here, three pico 33. Thereby, even if one or two picos 33 are damaged, the state of the first lifting tape 40a can be regulated by the remaining picos 33. That is, it is possible to prevent the first lifting tape 40a from floating away from the warp 31 of the ladder cord 30 with the remaining pico 33 that has not been damaged. Further, the movement of the first lifting tape 40a can be regulated by inserting the first lifting tape 40a between the weft threads 32 arranged vertically, but in the present embodiment, the pico 33 has the first lifting tape 40a. Is inserted to prevent the first lifting tape 40a from cutting the weft thread 32 due to friction or the like. Then, the tip end portion of the first lifting tape 40a extending outside the portion is fixed to the central portion of the bottom rail 21 by the tape holder 22.

Further, as shown in FIG. 4, the base end portions of the second lifting tape 40b at both end portions inside the room are fixed to the winding portion 15b of the drum 15. Next, the tape opening 17b of the head box 11 passes outside the uppermost slat 20a and the second slat 20b, and is between the second slat 20b and the third slat 20c to the third slat 20c. It is inserted into the second through hole 52 of the above. After that, the second lifting tape 40b is inserted into the second through hole 52, and the tip end portion is fixed to both end portions of the bottom rail 21 by the tape holder 22. At this time, as shown in FIG. 8, the second lifting tape 40b is pulled out from the guide hole 24b of the tape guide member 24 attached to the upper surface portion 21a 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. 12 and 13, 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. Further, the slat holder 23 is also provided on both sides of the slat 20b at the second stage from the top at a position where the warp 31 of the ladder cord 30 extends. In the slat retainer 23, the weft threads 32 of the ladder cord 30 are engaged with the long side portions 25a and 25b, so that the slat 20a and 20b suppress the lateral displacement. Further, the slat retainer 23 prevents the warp threads 31 from repeatedly contacting the edges of the long side portions 25a and 25b of the slat 20a and 20b, causing the warp threads 31 to wear and cut. Further, the slat retainer 23 suppresses the deformation of the slat by relaxing the load applied to the slat from the warp 31. Further, the slat retainer 23 reduces the frictional resistance between the warp 31 and the slat 20 so that the other slat can follow the uppermost slat 20a and smoothly tilt. The same effect can be obtained even if the slat retainer 23 is provided on the slat 20c of the third and subsequent stages. The warp thread 31 is engaged with the slat retainer 23.

Then, the first lifting tape 40a and the second lifting tape 40b are arranged adjacent to the slat retainer 23. That is, when the slat retainer 23 is arranged, the first through hole 51 and the second through hole 52 cannot be formed at the attachment position of the slat retainer 23 on the slat 20. The first through hole 51 and the second through hole 52 are provided adjacent to the slat retainer 23. As a result, the warp 31 of the ladder cord 30, the first lifting tape 40a, and the second lifting tape 40b are arranged adjacent to each other. Then, the first lifting tape 40a can be linearly inserted into the pico 33 of the warp 31 without meandering. Further, the second lifting tape 40b can be inserted into the second through hole 52 in a straight state by aligning the positions where the second through hole 52 is provided in the vertical direction.

Next, an operation method of the horizontal blind 10 configured as described above will be described. As shown in FIGS. 14 and 15, 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 emit sunlight. It will be in a fully closed state to block. In this case, on the outside of the room, the first long side portion 25a on the outside of each slat 20 faces downward. Generally, solar radiation is emitted 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 open end of the gap on the outside of the room faces downward, making it difficult for sunlight to enter, and is configured to enhance the light-shielding property.

At this time, the long side portions 25a and 25b of the slats 20 adjacent to each other overlap each other. For example, the first through hole 51 formed in the uppermost slat 20a near the first long side 25a on the outer side of the room is on the lower side, and is located on the upper side of the slat 20b on the second tier from the top. It overlaps with the second long side portion 25b and is shielded. Further, even in the second through hole 52 formed in the third and subsequent stages, the slat 20b in the second stage from the top adjacent to the slat 20c in the fourth and subsequent stages is shielded by the first long side portion 25a outside the room. Will be 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 portion 25a located on the lower side of the second-stage slat 20b from the top. The second through hole 52 formed in the slat 20c of the fourth and subsequent stages is also located on the upper side and is shielded by the first long side portion 25a on the lower side of the slat 20c adjacent to the upper side. Thus, when the operation cord 12 is pulled in one direction and the operation cord 12 is fully closed, the first through hole 51 and the second through hole 52 are shielded by the long side portions of the adjacent slats 20. The horizontal blind 10 is enhanced in light-shielding property by shielding the first through hole 51 and the second through hole 52 in the fully closed state of the slats 20.

The horizontal blind 10 can also be fully closed by pulling the operation cord 12 in the other direction so that the slats 20 are tilted in the opposite directions to those in FIGS. 14 and 15. In this case, the second through hole 52 of the slat 20c in the third stage 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 slat 20b in the fourth stage from the top. However, since the first through hole 51 is located on the upper side and there is no slat 20 above it, it is not shielded. Also in this case, the first through hole 51 becomes a shadow of the head box 11 and can reduce the incident solar radiation.

Here, as shown in FIGS. 14 and 15, when the slat 20 is fully closed, the first lifting tape 40a on the outside of the room is inserted into the first through hole 51 of the uppermost slat 20a. However, the second lifting tape 40b inside the room is not inserted through the uppermost slat 20a. Therefore, even when the operation cord 12 is pulled in one direction to tilt the uppermost slat 20a as shown in FIG. 15, the slat 20a is the second lifting tape 40b inside the room which is in the direction opposite to the tilting direction. It does not receive the pulling force F. Therefore, the uppermost slat 20a can be smoothly tilted according to the operation of the operation code 12.

Further, the slat 20b in the second stage from the top is not provided with a through hole, so that the load of the first lifting tape 40a does not apply to the curved convex surface portion of the slat 20b. There is. Further, the above-mentioned pulling force F is not applied either. Therefore, the slats 20c can be tilted smoothly. Further, with respect to the slat 20c in the third and subsequent stages from the top, the slat 20c can be smoothly tilted without the load of the first lifting tape 40a being applied to the curved convex surface portion of the slat 20b.

When the bottom rail 21 is pulled up, the lifting tape 40 is wound around the winding portion 15b of the drum 15. The first lifting tape 40a on the outside of 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, and is substantially parallel to the main surface portion of the slat 20a. Then, the rectification is performed so as to match the guide surface of the guide roller 18 and the winding surface of the winding portion 15b. Since the pico 33 is inserted into the first lifting tape 40a in the vicinity of the slat 20c of the stage separated from the uppermost slat 20a by a predetermined distance, the first lifting tape 40a is twisted according to the shape of the pico 33 with respect to the main surface portion of the slat 20c. It is often in a vertical state. When the first lifting tape 40a is wound around the winding portion 15b in a twisted state, the winding diameter is increased by the amount of twisting and overlapping, and the same amount of lifting is performed by the plurality of coaxial winding portions 15b. The tape cannot be wound at the same speed. Further, since the first lifting tape 40a is wound in a twisted state, creases and the like are formed and the first lifting tape 40a becomes more easily twisted. In this respect, the first through hole 51 shows the state of the first lifting tape 40a in the main surface portion of the slats 20a immediately before being wound around the drum 15 closer to the head box 11 than the portion where the first lifting tape 40a is inserted into the pico 33. It is arranged in a state substantially parallel to the guide surface of the guide roller 18 and the winding surface of the winding portion 15b. As a result, the first lifting tape 40a is wound around the winding portion 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 mainly the slat 20c. It 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 around the winding portion 15b of the drum 15 without being twisted. That is, both the first lifting tape 40a and the second lifting tape 40b are wound around the drum 15 without being twisted. Therefore, the three drums 15 can wind the three lifting tapes 40a and 40b at the same speed in the same amount, and can prevent the slats 20 from tilting at the time of winding.

The horizontal blind 10 as described above can obtain the effects listed as follows.
(1) The horizontal blind 10 can reduce the size of the drum 15 by using a lifting tape 40 instead of using an elevating cord. Further, the head box 11 can be miniaturized. Further, even when used for a horizontal blind having a long overall height, it is possible to prevent the drum 15 and the head box 11 from becoming large.

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

(3) The second lifting tape 40b inside the room is also adjusted to match the winding surface of the winding portion 15b by the second through hole 52 from the top to the third slat 20c, so that it is not 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 through 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 code 12.

(5) The first lifting tape 40a on the outside of the room is only inserted into the first through hole 51 of the uppermost slat 20a, and the lower tier passes through the outside of the slat 20b and the slat 20c. Therefore, when the first lifting tape 40a is in the fully closed state, the slat 20 can be smoothly tilted without coming into contact with the curved arcuate convex surface portion of each slat 20 and applying an extra load.

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

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

(8) With respect to the slat 20b in the second stage from the top, lateral displacement of the slat 20b can be prevented by engaging the weft thread 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 and the second slat 20b from the top prevents the warp 31 and the slat 20a, 20b from repeatedly directly contacting each other, and prevents the warp 31 from breaking. It can be suppressed. Further, with respect to the other slat retainers 23, it is possible to prevent the warp threads 31 and the slat 20a from repeatedly contacting each other and to prevent the warp threads 31 from being broken. Further, the slat retainer 23 reduces the frictional resistance between the warp 31 and the slat 20 so that other slat can follow the uppermost slat 20a and 20b and tilt smoothly.

The horizontal blind 10 as described above can be further modified as appropriate as follows.
As shown in FIG. 16, the lifting tape 40 does not have to be inserted through the pico 33 provided in the warp 31 of the ladder cord 30. That is, on the outside of the slats 20, the lifting tape 40 is inserted between the two weft threads 32 of the ladder cord 30. In this case, the area surrounded by the side edges of the two weft threads 32 and the slats 20 becomes the 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 side edges of the two weft threads 32 and the slats 20. In this case, the pico 33 can be omitted from the ladder code 30.

The pico 33 as the insertion portion may be formed by integrally providing the warp 31 with a resin-molded annular body as a rigid body, in addition to a soft body made of a thread. Further, the annular body may be made of metal as a rigid body. In this case, the rigid annular body can be integrated with the ladder cord 30 by adhering the mounting end of the annular body to the warp 31 of the ladder cord 30 with an adhesive or sewing it into the warp 31 of the ladder cord 30. can.

Further, the insertion portion may be provided integrally with the slats 20c. As shown in FIG. 17A, the insertion portion is not an annular shape, but is composed of a recess 34 having a width corresponding to the first lifting tape 40a on the first long side portion 25a on the outside of the room of the slats 20c. You can also. As a result, the position of the first lifting tape 40a in the longitudinal direction with respect to the slat 20c is restricted by engaging with the recess 34.

As shown in FIG. 17B, the insertion portion includes a slit 35a that cuts from the first long side portion 25a in the short side direction, and an insertion hole 35b through which the first lifting tape 40a is inserted continuously with the slit 35a. It may be configured. In this case, the slit 35a has substantially the same thickness as the first lifting tape 40a, and the insertion hole 35b is composed of, for example, a rectangular through hole slightly larger than the cross-sectional shape. As a result, the first lifting tape 40a can be inserted into the insertion hole 35b through the slit 35a. By engaging the first lifting tape 40a with the insertion hole 35b, the position in the longitudinal direction with respect to the slats 20c is restricted. Further, since the slit 35a of the first lifting tape 40a is extremely thin, it is possible to prevent the first lifting tape 40a from coming out from the insertion hole 35b through the slit 35a.

As shown in FIG. 17C, the insertion portion may be composed of a pair of guide pieces 36 protruding from the first long side portion 25a. In this case, the distance between the pair of guide pieces 36 has a width corresponding to the first lifting tape 40a. By arranging the first lifting tape 40a between the pair of guide pieces 36, the position in the longitudinal direction with respect to the slat 20c is restricted.

The first through hole 51 may be omitted from the uppermost slat 20a to simplify the configuration. In this case, as shown in FIG. 18, the tape opening 17b from the drum 15 is used as a guide portion and has the same shape as the first through hole 51. The tape opening 17b is also made of a rigid body. As a result, 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, the tape opening 17b may have the same shape as the first through hole 51, and the first through hole 51 may be further provided in the uppermost slat 20c, so that the total number of the tape openings 17b may be two. Further, the first through hole 51 may be provided in the slats 20b or the like. In this way, a plurality of guide portions may be provided between the winding portion 15b and the pico 33 which is the insertion portion.

As shown in FIG. 19, the first lifting tape 40a may be sandwiched between a pair of guide rollers 53 in the vicinity of the tape opening 17b to adjust the state of the first lifting tape 40a. The pair of guide rollers 53 are made of a rigid body, and are provided on the bottom surface of the support member 16 on the side closer to the uppermost slat 20, for example. Further, after providing the guide roller 53, the first through hole 51 may be further provided in the uppermost slat 20c, so that the total number of holes 51 may be two. Further, the first through hole 51 may be provided in the slats 20b or the like. In this way, a plurality of guide portions may be provided between the winding portion 15b and the pico 33 which is the insertion portion.

-In addition, as the slat 20, slat having different dimensions in the width (Z) direction is used according to the product size of the horizontal blind. As shown in FIG. 20, the rectangular tape opening 17b is set so that the length of the short side is substantially the same as the width of the lifting tape 40, and the long side is substantially the entire length in the width (Z) direction. Has a rectangle. Two mounting grooves 61 to which the guide member 62 is mounted are provided side by side at a position adjacent to the tape opening 17b on the bottom surface of the support member 16. Each mounting groove 61 includes a mounting portion 63 that is inserted into the mounting groove 61 and mounted on the bottom surface of the support member 16, and a guide protrusion 65 that protrudes from the mounting portion 63 and has a guide hole 64 formed therein. The guide hole 64 is formed in the same manner as the first through hole 51, and is made of a rigid body. The guide hole 64 is formed at an optimum position according to the width of the slat 20 in the guide protrusion 65. When the mounting portion 63 is inserted into the mounting groove 61, the pin 66 formed on the end surface of the mounting portion 63 is press-fitted into the mounting hole formed at a position facing the pin 66. As a result, the guide member 62 is fixed to the mounting groove 61. Even when such a guide member 62 is used, a guide portion can be provided instead of the first through hole 51 of the slat 20a. Then, a guide hole 64 made of a rigid body can be provided. Of course, the first through hole 51 may be formed in the slat 20a, and the guide hole 64 may be further provided. Even with such a configuration. A plurality of guide portions may be provided between the winding portion 15b and the pico 33 which is the insertion portion.

As shown in FIG. 21, a guide roller 70 serving as a guide portion may be arranged on the bottom surface of the head box 11 or the bottom surface of the support member 16. The rigid guide roller 70 is rotatably attached to the bottom surface of the head box 11 or the attachment piece 71 of the support member 16. Of course, in addition to such a guide roller 70, the slat 20a may be provided with a first through hole 51.

The slat retainer 23 may be provided on the slat 20 of any stage. As a result, it is possible to prevent the warp 31 of the warp 31 of the ladder cord 30 from coming into direct contact with the slats 20 and being worn and cut. Further, the frictional resistance between the warp 31 and the slat 20 is reduced so that the slat 20 can follow and tilt smoothly.

-Instead of the slat retainer 23, a concave notch in which the lifting tape 40 engages may be formed on the long side of the slat 20. In particular, neither of the two lifting tapes 40 is inserted into the slat 20b in the second stage from the top, and the slat retainer 23 has an important function of preventing the slat 20b from laterally shifting. A notch may be used instead of the slat retainer 23 of the second-stage slat 20b. As a result, the number of parts can be reduced.

-The above horizontal blind 10 has described the case where the three lifting tapes 40 are arranged along the warp threads 31 of the three ladder cords 30, but the number of the lifting tapes 40 and the number of the ladder cords 30 are the same. It is not limited. For example, the ladder code 30 may be four and the lifting tape 40 may be four, or in the horizontally long horizontal blind, the ladder code 30 may be seven and the lifting tape 40 may be four. Further, the number of ladder cords 30 may be five and the number of lifting tapes 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 slat 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 may be provided in the upper slat 20 which can be adjusted 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. Further, the number of slats 20 provided with the first through hole 51 may be a plurality.

-The slat 20b in the second stage 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 overlaps with the second long side portion 25b of the slat 20c provided with the second through hole 52. Since the first through hole 51 is provided in the central portion of the long side portion and the second through hole 52 is provided on both end sides of the long side portion, the first long side portion 25a and the second long side portion are provided. Even if the 25b overlaps, the positions of the first through hole 51 and the second through hole 52 do not match. Therefore, it is possible to prevent the first through hole 51 and the second through hole 52 from overlapping and leaking light.

By the way, in the case of a horizontally long blind, the number of ladder cords 30 also increases from three, and the number of lifting tapes 40 also increases from three, as described above. Along with this, the bottom rail 21 is also the same long as the slats 20. As shown by the middle dotted line in FIG. 22, the bottom rail 21 has a shape having the same length (X) and width (Z) as the slats. In this case, the bottom rail 21 becomes heavier as it becomes longer, and tends to bend and bend in a bow shape at the center due to its own weight. When the bottom rail 21 is pulled up in a bent state, the bottom rail 21 tilts inside the room or outside the room. Further, since the plurality of slats 20 stacked on the bottom rail 21 are thin and easily deformed, they are curved according to the bending shape of the bottom rail 21. Then, as shown by the middle dotted line in FIG. 22, a plurality of slats 20 stacked on the bottom rail 21 swell so as to spill from the bottom rail 21. When it swells inside the room, the design of the surface inside the room that is visible to the user deteriorates.

In the examples of FIGS. 22 and 23, five ladder cords 30 and four lifting tapes 40 are used for a horizontally long blind. Specifically, in the example of FIG. 23, two first lifting tapes 40a extend outside the room in the region of the slat 20c after the third stage. In addition, two second lifting tapes 40b are extended at both ends inside the room. The bottom rail 21 has a width W2 wider than the width W1 between the long side portions 25a and 25b of the slats 20 to increase the 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 the thicker the bottom rail 21, the higher the strength and the less likely it is to bend due to its own weight. As a result, 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 40a are inserted in a state where tension is applied to the two first through holes 51. Further, the first lifting tape 40a is inserted through the pico 33. Further, here, the hanging position of the first lifting tape 40a 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 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, tension is applied to both the first lifting tape 40a and the second lifting tape 40b 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 deviation of the slats 20 in the front-rear direction even if the stacked slat 20 tries to deviate from the bottom rail 21.

In this way, the bottom rail 21 is widened to increase the strength and make it difficult to bend, and in addition, the slats 20 are 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 slats 20 are stacked straight on the bottom rail 21 so that the long side portion inside the room of the slat 20 and the long side portion inside the room of the bottom rail 21 are substantially flush with each other. .. As a result, it is possible to prevent the design inside the room from deteriorating. The pico 33 of the ladder cord 30 into which the first lifting tape 40a is inserted is formed in a size (diameter) so as not to apply unnecessary tension to the slats 20 brought to the inside of the room.

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

On the bottom rail 21 of FIG. 23, the tape guide member 24 is provided not only at the pull-out position of the second lifting tape 40b but also at the pull-out position of the first lifting tape 40a. As a result, it is possible to prevent the first lifting tape 40a from moving in the front-rear direction.

Further, the bulge of the slats 20 shown in FIG. 22 can be solved by configuring as shown in FIGS. 25 and 26. As shown in FIG. 25, in this example, five ladder cords 30 and five lifting tapes 40 are provided. Specifically, two first lifting tapes 40a extend outside the room in the region of the slats 20c after the third stage. In addition, two second lifting tapes 40b are extended at both ends inside the room. Further, one third lifting tape 40c extends in the central portion inside the room.

Since the third lifting tape 40c extending to the central portion inside the room is in a state where the drum 15 is connected to the bottom rail 21 which is a heavy member and tension is applied, the bulge of the slats 20 shown in FIG. 22 is suppressed. Suppresses the stacking slats 20 from shifting. The warp thread 31 of the ladder cord 30 is not provided with a pico 33 to prevent the design inside the room from being deteriorated.

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

In the examples of FIGS. 25 and 26, since the bottom rail 21 can suppress the displacement of the slat 20 by the third lifting tape 40c, it is substantially the same as the width W1 between the long side portions 25a and 25b of the slat 20. The same can be used. The bottom rail 21 may have a width W2 wider than the width W1 as shown in FIGS. 22 and 23 to increase the strength.
Further, the first lifting tape 40a is not passed through the pico 33, but is inserted through the insertion portion 35 between the weft threads 32 from one side of the warp thread 31 to the other side, and the warp thread 31 is inserted through the next insertion portion 35. It may be inserted from the other side to one side. Further, the second lifting tape 40b is also inserted through the insertion portion 35 between the weft threads 32 from one side to the other side of the warp thread 31 instead of being passed through the second through hole 52, and is inserted into the next insertion portion 35. The warp thread 31 may be inserted from the other side to one side.

-As shown in FIGS. 27 and 28, the slats 20 may be arranged upside down from the slats 20 described above. In FIGS. 27 and 28, the first lifting tape 40a and the ladder code 30 are omitted. In this case, the upper surface portion of the slat 20 is a concave surface portion, and the lower surface portion is an arcuate convex surface portion. Although details are omitted, the uppermost slat 20a forms a first through hole 51 through which the first lifting tape 40a is inserted in the central portion of the second long side portion 25b located inside the room. The slat 20c after the step forms a second through hole 52 into which the second lifting tape 40b is inserted on both end sides of the first long side portion 25a located outside the room.

In the horizontal blind as described above, 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 block the sunlight. It becomes a 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, and the second long side portion 25b on the inside of the room faces upward. Then, among the slat 20c adjacent to each other, the second long side portion 25b on the concave surface side of the slat 20c adjacent to the lower side overlaps so as to cover the second through hole 52 of the slat 20c located on the upper side, and the second The through hole 52 is shielded. As a result, light leakage from the second through hole 52 can be suppressed. Further, since the second lifting tape 40b is inserted into the second through hole 52 in a state of being hung straight down, the slats 20c can be smoothly rotated. That is, it is possible to prevent the second lifting tape 40b to which tension is applied from hitting the edge of the second through hole 52 and hindering the rotational operation.

As shown in FIG. 29, the tape opening 17b has a rectangular shape, and the distance between the pair of long sides extending in the width direction (Y) of the head box 11 has a length corresponding to the width of the lifting tape 40. .. As a result, the positions of the pair of long sides forming the tape opening 17b are restricted in the width direction of the lifting tape 40. The position of the lifting tape 40 sent out from the tape opening 17b changes in the width direction (Y) of the head box 11 depending on the winding amount. The short side extending in the length direction (X) of the head box 11 of the tape opening 17b comes into contact with the lifting tape 40 when the delivery position of the lifting tape 40 deviates from between the opposing short sides. The short side in contact with the lifting tape 40 functions as a guide portion 18a in the direction in which the delivery position changes, and is composed of, for example, an arc surface to guide the lifting tape 40. For example, the bottom rail 21 is near the uppermost position, most of the lifting tape 40 is wound around the winding portion 15b, the winding diameter is at or near the maximum, and the short length of the tape opening 17b with which the delivery positions are opposite. When located on the outside between the sides, the guide portion 18a contacts the lifting tape 40 and guides it to hang down from the headbox 11. In this way, the tape opening 17b can limit the delivery position of the lifting tape 40 between the opposing short sides. Therefore, in this example, since the short side of the tape opening 17b functions as the guide portion 18a, the guide roller 18 shown in FIGS. 6A and 6B becomes unnecessary. The guide portion 18a may have a constant delivery position regardless of the winding diameter of the winding portion.

The slat retainer 23 may be arranged at a position where the first lifting tape 40a and the second lifting tape 40b extend. As a result, the slat retainer 23 can be prevented from being worn by the friction between the first lifting tape 40a and the second lifting tape 40b and the slat 20, as in the case of the ladder cord 30.

The method of fixing the first lifting tape 40a and the second lifting tape 40b on the bottom rail 21 is not particularly limited. For example, inside the bottom rail 21, the ends of the first lifting tape 40a and the second lifting tape 40b may be fixed by fasteners, and the lifting tape may be pulled out from the outlet formed in the bottom rail 21. Further, the first lifting tape 40a and the second lifting tape 40b are rotated in the front-rear direction of the slat 20 through the inside or the outer circumference of the bottom rail, and both ends thereof are fixed to the winding portion 15b of the drum 15. May be good.

-As shown in FIG. 30, in the horizontal blind, the slat 20a may not be provided with the first through hole 51. In this case, the first lifting tape 40a pulled out from the head box 11 is inserted into the pico 33 of the slat 20c portion of the third and subsequent stages from the top. As described above, the pico 33 has an elliptical habit of intersecting the length direction (X) of the slat 20 such that the long axis of the ellipse intersects the winding surface of the winding portion 15b. Therefore, when the first lifting tape 40a through which the pico 33 is inserted is inserted through the pico 33, it is often twisted in accordance with the habit of the pico 33 and becomes perpendicular to the main surface portion of the slats 20c. Even in such a case, the pico 33 into which the first lifting tape 40a is inserted is separated from the head box 11. Therefore, the twist of the first lifting tape 40a becomes gentle, and the frictional resistance between the pico 33 and the first lifting tape 40a can be reduced. The second lifting tape 40b is inserted into the second through hole 52 of the slat 20c of the third and subsequent stages.

-The slats 20 may be made of a flat plate.
-In the horizontal blind, the first through hole 51 of the slat 20a may be located inside the room, and the second through hole 52 of the slat 20c may be located outside the room.
-In addition, it can also be applied to electric blinds. Further, the operation unit is not limited to the loop code type as described above.
-The horizontal blind may be arranged between the inner window and the outer window. Further, it may be arranged inside a translucent partition.

Further, according to the above-described embodiment and its modification, the following technical ideas are further derived.
(Appendix 1)
Headbox and
With multiple slats lined up in the ascending / descending direction,
A ladder cord that is suspended from the headbox and supports each of the slats so that the tilt can be adjusted.
The bottom rail located below the slat at the bottom and
A lifting tape that is suspended from the head box and raises and lowers the bottom rail,
A winding mechanism including a winding portion for winding the lifting tape and a guide portion for guiding the lifting tape is provided.
The guide portion is a horizontal blind that comes into contact with the lifting tape drawn from the winding portion to guide the lifting tape.
According to the configuration of the above-mentioned Appendix 1, the position where the lifting tape is pulled out can be guided by the guide portion coming into contact with the lifting tape.
(Appendix 2)
In the horizontal blind described in Appendix 1, the guide portion is always in contact regardless of the winding diameter of the lifting tape in the winding portion so that the lifting tape is pulled out from the same position. For example, the guide portion is a guide roller.
According to the configuration of Appendix 2 above, the lifting tape can be pulled out from the same position regardless of the winding amount of the winding portion.
(Appendix 3)
In the horizontal blind described in Appendix 1, the feeding position of the lifting tape from the winding portion moves according to the winding diameter, and the sending position is the tape from which the lifting tape is pulled out in the moving direction of the sending position. When it goes out of the range of the opening, the guide portion comes into contact with the lifting tape sent out from the winding portion to guide the lifting tape.
According to the configuration of Appendix 3, when the tape opening is out of range, the guide portion can guide the lifting tape sent out from the winding portion.

(Appendix 4)
Headbox and
With multiple slats lined up in the ascending / descending direction,
A ladder cord that is suspended from the headbox and supports each of the slats so that the tilt can be adjusted.
The bottom rail located below the slat at the bottom and
It is provided with a lifting tape that is suspended from the head box and raises and lowers the bottom rail.
The lifting tape is a horizontal blind inserted into a through hole provided at a position deviated on one long side of the slats.
According to the configuration of Appendix 4, when the slats are fully closed, the through holes can be shielded by the other long side portion of the adjacent slats, and the light blocking property can be enhanced.
(Appendix 5)
In the horizontal blind described in Appendix 4, the through hole is arranged at a hanging position of the lifting tape delivered from the head box.
According to the configuration of Appendix 5, the slat can tilt smoothly because the frictional resistance between the through hole and the lifting tape is reduced.
(Appendix 6)
In the horizontal blind described in Appendix 4, the through hole is provided in the slats at a position deviated toward the long side portion inside the room.
(Appendix 7)
In the horizontal blind described in Appendix 4, the through hole is provided in a slat below the uppermost slat.
According to the configuration of Appendix 7, the frictional resistance between the through hole and the lifting tape is reduced, and the slats can be smoothly tilted.
(Appendix 8)
In the horizontal blind described in Appendix 4, the slats are arranged so that the upper side is a concave portion and the lower side is a convex portion.
According to the configuration of Appendix 8 above, the lifting tape hanging from the head box is inserted into the through hole in a straight state, and the frictional resistance between the through hole and the lifting tape during tilting can be reduced, and the slats can be smoothly slated. Can be tilted. Further, when fully closed, the through hole can be covered with the concave surface portion of the adjacent slats.

(Appendix 9)
Headbox and
With multiple slats lined up in the ascending / descending direction,
A ladder cord that is suspended from the headbox and supports each of the slats so that the tilt can be adjusted.
A first lifting tape that is suspended from the head box, extends to one of the first long sides of the slats, and raises and lowers the slats.
A second that is suspended from the head box, extends to the other second long side of the slats facing the first long side, and raises and lowers the slats in cooperation with the first lifting tape. Equipped with lifting tape,
The slat is a first slat having a first through hole formed unevenly on the first long side portion and a second slat having a second through hole formed unevenly on the second long side portion. With and
The first lifting tape is inserted through the first through hole, and the second lifting tape is inserted through the second through hole. A horizontal blind.
According to the configuration of Appendix 9, there is no slat through which both the first lifting tape and the second lifting tape are inserted. Therefore, any slats can be smoothly tilted by the ladder cord.
(Appendix 10)
The horizontal blind according to Appendix 9 further includes a third slat in which a through hole is not formed between the first slat and the second slat.
According to the configuration of Appendix 10, the load on the third slat by the first lifting tape can be reduced in the fully closed state.
(Appendix 11)
In the horizontal blind described in Appendix 10, a slat retainer is arranged on the third slat, and the ladder cord is engaged with the slat retainer.
According to the above-mentioned Appendix 10, lateral displacement of the third slat can be suppressed.

(Appendix 12)
Headbox and
With multiple slats lined up in the ascending / descending direction,
A ladder cord that is suspended from the headbox and supports each of the slats so that the tilt can be adjusted.
The bottom rail located below the slat at the bottom and
A lifting tape that is suspended from the head box and raises and lowers the bottom rail,
A tape guide member that guides the lifting tape to the upper surface of the bottom rail,
It is provided with a through hole formed at a position deviated on one long side of the slats and through which the lifting tape is inserted.
The lifting tape is a horizontal blind that is pulled out by the tape guide member from a position directly below the through hole on the upper surface of the bottom rail.
According to the configuration of Appendix 12, the lifting tape is in a substantially straight state between the headbox and the bottom rail, and the slats can be maintained in an aligned state. Then, each slat can be made to follow and tilt smoothly.
(Appendix 13)
In the horizontal blind described in Appendix 12, the tape guide member guides the bottom rail so that the pull-out position of the lifting tape in the lateral direction is directly below the through hole on the upper surface portion of the bottom rail. To be equipped with.
According to the configuration of Appendix 13, the lifting tape can be pulled out from directly below the through hole by the first guide portion.
(Appendix 14)
In the horizontal blind described in Appendix 13, a second guide portion that regulates the pull-out position of the lifting tape in the longitudinal direction is further provided on the upper surface portion of the bottom rail.
According to the configuration of Appendix 14, the lifting tape can be pulled out from directly below the through hole by the second guide portion.
(Appendix 15)
A tape guide member that is attached to the upper surface of the bottom rail and guides the lifting tape hanging from the head box.
A main surface portion arranged on the upper surface portion of the bottom rail and
An engaging portion that is engaged with each of the opposing long sides of the bottom rail,
It is provided on the main surface portion and has a guide hole for guiding the position of the lifting tape.
The guide hole is a tape guide member including a first guide portion that guides a position in the lateral direction on the upper surface portion of the bottom rail.
According to the configuration of Appendix 15, the lifting tape can be pulled out from directly below the through hole by the first guide portion.
(Appendix 16)
In the tape guide member according to Appendix 15, the guide hole further includes a second guide portion that guides a position in the longitudinal direction on the upper surface portion of the bottom rail.
According to the configuration of Appendix 16 above, the lifting tape can be pulled out from directly below the through hole by the second guide portion.

(Appendix 17)
Headbox and
Multiple rectangular slats lined up in the ascending / descending direction,
A ladder cord that is suspended from the headbox and supports each of the slats so that the tilt can be adjusted.
The bottom rail located below the slat at the bottom and
A lifting tape that is suspended from the head box and raises and lowers the bottom rail,
It is provided with an insertion portion through which the lifting tape is inserted so as to follow the ladder cord.
The ladder cord includes a pair of warp threads extending in the elevating direction and a weft thread provided between the pair of warp threads.
The insertion portion is between a pair of warp threads extending in the elevating direction of the ladder cord and between weft threads arranged in the elevating direction.
The lifting tape is a horizontal blind that extends along the warp threads and is inserted into the insertion portion from one side of the warp threads in the left-right direction (length (X) direction) to the other side.
According to the configuration of Appendix 17, it is possible to prevent the lifting tape from floating with respect to the warp threads of the ladder cord. In addition, the lifting tape can prevent the slats piled up on the bottom rail from shifting from the bottom rail.
(Appendix 18)
In the horizontal blind described in Appendix 17, the lifting tape is arranged inside the room.
According to the configuration of Appendix 18, the lifting tape can prevent the slats piled up on the bottom rail from shifting from the bottom rail to the inside of the room.

(Appendix 19)
Headbox and
With multiple slats lined up in the ascending / descending direction,
A ladder cord that is suspended from the headbox and supports each of the slats so that the tilt can be adjusted.
The bottom rail located below the slat at the bottom and
It is provided with a lifting tape that is suspended from the head box and raises and lowers the bottom rail.
A horizontal blind in which the width between one long side and the other long side of the bottom rail is wider than the width between one long side and the other long side of the slats.
According to the configuration of Appendix 19, the bottom rail is less likely to bend due to its own weight due to the increased strength, and it is possible to prevent the bottom rail 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 and shifting, improving the design.
(Appendix 20)
Headbox and
With multiple slats lined up in the ascending / descending direction,
A ladder cord that is suspended from the headbox and supports each of the slats so that the tilt can be adjusted.
The bottom rail located below the slat at the bottom and
A lifting tape that is suspended from the head box and raises and lowers the bottom rail,
It is provided with an insertion portion arranged on the ladder cord and into which the lifting tape is inserted.
The lifting tape is a horizontal blind that is inserted into the insertion portion at a position below the uppermost slat.
According to the configuration of Appendix 20, even if the lifting tape is twisted by the insertion portion, it is inserted into the insertion portion at a position below the uppermost slat, so that the twist is gentle and the insertion is performed. The friction between the portion and the lifting tape can be reduced.
(Appendix 21)
Headbox and
With multiple slats lined up in the ascending / descending direction,
A ladder cord that is suspended from the headbox and supports each of the slats so that the tilt can be adjusted.
The bottom rail located below the slat at the bottom and
It is provided with a lifting tape that is suspended from the head box and raises and lowers the bottom rail.
The lifting tape is a horizontal blind that is inserted into a through hole provided in a slat below the uppermost slat.
According to the configuration of Appendix 21, the frictional resistance between the lifting tape and the slats is reduced, and the slats can be smoothly tilted.
(Appendix 22)
Headbox and
With multiple slats lined up in the ascending / descending direction,
The bottom rail located below the slat at the bottom and
A first lifting tape suspended from the head box, extending to the first long side of one of the slats, and raising and lowering the bottom rail.
A second that is suspended from the head box, extends to the other second long side of the slats facing the first long side, and raises and lowers the bottom rail in cooperation with the first lifting tape. Equipped with 2 lifting tapes
The first lifting tape is pulled out from the side edge portion of one of the slats on the bottom rail on the first long side side, and the second lifting tape is the second of the slats on the upper surface portion of the bottom rail. A horizontal blind that is pulled out from a position that is biased toward the long side.
According to the configuration of Appendix 22, the position where the bottom rail is biased toward the side edge of one of the slats on the first long side and the second long side of the slats by the first lifting tape and the second lifting tape. Can be supported by.
(Appendix 23)
Headbox and
With multiple slats lined up in the ascending / descending direction,
A ladder cord that is suspended from the headbox and supports each of the slats so that the tilt can be adjusted.
A slat retainer that is placed on the slat and the ladder cord is engaged with,
A lifting tape that is suspended from the head box and raises and lowers the bottom rail,
A horizontal blind having a through hole adjacent to the slat retainer, formed at a position deviated toward one long side of the slat, and through which the lifting tape is inserted.
According to the configuration of Appendix 23, the lifting tape can be shifted with respect to the slat retainer, and the ladder cord and the lifting tape can be arranged adjacent to each other.
(Appendix 24)
In the horizontal blind described in Appendix 23, the ladder cord is provided with an insertion portion through which the lifting tape is inserted.
According to the configuration of Appendix 24, the ladder cord and the lifting tape can be arranged adjacent to each other by arranging the insertion portion in the ladder cord.

10 ... Horizontal blind, 11 ... Head box, 12 ... Operation code, 13 ... Operation mechanism, 13a ... Housing, 14 ... Shaft body, 15 ... Drum, 15b ... Winding part, 16 ... Support member, 16a ... Rotation support part, 17a ... Cord opening, 17b ... Tape opening, 17c ... Squeeze piece, 18 ... Guide roller, 18a ... Guide part, 20 ... Slat, 20a ... Top slat, 20b ... Second slat from top, 20c ... Slats from the third stage onward, 21 ... bottom rail, 21a ... upper surface, 21b ... engagement groove. 21c ... bottom surface, 22 ... tape holder, 22a ... engaging part, 22b ... notch, 23 ... slat holder, 24 ... tape guide member, 24a ... engaging part, 24b ... guide hole, 24c ... first guide part, 24d ... 2nd guide part, 25a ... 1st long side part outside the room, 25b ... 2nd long side part inside the room, 30 ... ladder cord, 31 ... warp, 32 ... weft, 33 ... pico, 34 ... recess, 35 ... Insertion part, 35a ... Slit, 35b ... Insertion hole, 36 ... Guide piece, 40 ... Lifting tape, 40a ... First lifting tape outside the room, 40b ... Second lifting tape inside the room, 40c ... Third lifting tape , 50 ... guide portion, 51 ... first through hole, 51a ... long side spacing, 51b ... short side spacing, 52 ... second through hole, 53 ... guide roller, 61 ... mounting groove, 62 ... guide member, 63 ... mounting Part, 64 ... Guide hole, 65 ... Guide protrusion, 66 ... Pin, 70 ... Guide roller, 71 ... Mounting piece.

Claims (16)

Headbox and
With multiple slats lined up in the ascending / descending direction,
A ladder cord that is suspended from the headbox and supports each of the slats so that the tilt can be adjusted.
Lifting tape that is suspended from the headbox and raises and lowers the slats,
An insertion portion through which the lifting tape is inserted so as to follow the ladder cord, and
The main surface of the lifting tape, which is arranged closer to the head box than the insertion portion and is twisted with respect to the winding surface of the winding portion that winds the lifting tape by being inserted through the insertion portion. , A horizontal blind having a guide portion that guides the lifting tape along the extending direction along the winding surface. The horizontal blind according to claim 1, wherein the guide portion is a through hole formed in the slats. The horizontal blind according to claim 2, wherein the through hole is formed in the slats located at the uppermost stage. The insertion portion is an annular body supported by the ladder cord, and is an annular body.
The horizontal blind according to any one of claims 1 to 3, wherein the annular bodies are arranged along the elevating direction and the lifting tape is inserted. Further provided with a bottom rail located below the slat at the bottom,
The lifting tape is a first lifting tape.
The first lifting tape raises and lowers the slats by raising and lowering the bottom rail.
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 deviated toward one long side of the slats.
Further, a second lifting tape suspended from the head box and raising and lowering the bottom rail in cooperation with the first lifting tape,
On the lower side of the slat in which the first through hole is formed, the main surface of the second lifting tape is aligned with the winding surface of the winding portion along the extending direction of the second lifting tape. The second through hole to be guided to the above, which is provided with the second through hole formed at a position deviated on the other long side of the slats, according to any one of claims 1 to 4. Horizontal blinds. The horizontal blind according to claim 5, wherein the plurality of slats include slats through which neither the first lifting tape nor the second lifting tape is inserted. The first through hole and the second through hole are provided so as to be offset in the long side direction of the slats.
When the plurality of slats are fully closed, the first through hole is shielded by one long side of the adjacent slats, and the second through hole is shielded by the other long side of the adjacent slats. The horizontal blind according to claim 5 or 6. The head box is provided with a winding portion for winding the lifting tape and a guide roller for guiding 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 at the winding portion, and the lifting tape is drawn from the same position according to claim 1. The described horizontal blinds. Further provided with a bottom rail located below the slat at the bottom,
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 slats. The horizontal blind according to claim 1, wherein the guide portion has a narrower range for restricting the displacement of the lifting tape than the insertion portion. The horizontal blind according to claim 1, wherein the guide portion is provided at a position separated from the delivery position of the lifting tape in the winding portion. The horizontal blind according to claim 1, wherein the guide portion is provided at a position separated from the head box in the direction of the insertion portion. The first aspect of the present invention, wherein the guide portion passes through the center between the long sides of the slats rather than the position of the insertion portion and is provided in the direction of the center line parallel to the long sides. Horizontal blinds. The horizontal blind according to claim 1, wherein the guide portion is made of a rigid body, and the insertion portion is made of a soft body. The horizontal blind according to claim 1, wherein a plurality of the guide portions are arranged between the insertion portion and the winding portion. A support member for arranging the take-up portion in the head box is further provided.
The horizontal blind according to claim 1, wherein the guide portion is provided on a bottom surface of the support member close to the slats.

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