JP2023024703A - Solar shading device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar shading device capable of enhancing light blocking effect.

SOLUTION: A solar shading device comprises a headbox 11 for suspending a plurality of first lifting cords 15a, a plurality of slats 12 which are lifted and lowered by elevating/lowering of the plurality of first lifting cords 15a, and a ladder cord 13 which is suspended from the headbox 11 and which supports each of the slats 12 rotatably. The slat 12 comprises open holes into which the first lifting cord 15a is inserted, in both ends of the longer direction. The ladder cord 13 comprises a pair of warp threads 13a arranged in parallel with the first lifting cords 15a, and a weft thread 13b for connecting the pair of warp threads 13a. The weft thread 13b is positioned on the side of the intermediate part in the longer direction of the slat 12 than the first lifting cords 15a inserted into the open holes, and the weft thread 13b is positioned on the end side of the slat 12 than the first lifting cords 15a inserted into the open holes, in at least one place in the intermediate stage of the slats 12.

SELECTED DRAWING: Figure 35

COPYRIGHT: (C)2023,JPO&INPIT

Description

The present invention relates to a solar shading device.

A horizontal blind includes a plurality of slats supported by ladder cords and a plurality of lifting cords for lifting and lowering the plurality of slats. The plurality of lifting cords are arranged, for example, at the central portion in the longitudinal direction of the slats and at both ends in the longitudinal direction of the slats, and are inserted through through-holes formed in the central portion in the longitudinal direction of each of the plurality of slats. there is A plurality of slats are raised and lowered by operating a plurality of lifting cords, and a plurality of slats are simultaneously tilted by operating a ladder cord (see Patent Document 1).

JP 2014-205992 A

However, in horizontal blinds, it is required to make light leakage from through-holes formed in each slat through which lifting cords are inserted inconspicuous. In the horizontal blind of Patent Literature 1, the operating portion is arranged at one end of the head box in the longitudinal direction, so the lifting cord cannot be suspended from a position near one end of the head box due to the operating portion. For this reason, the through-holes through which the lifting cords are inserted cannot be arranged closer to one end of the slats. As a result, the leakage of light from the through-holes becomes noticeable as the through-holes are shifted from one end of the slat toward the center.

Even in a pleated screen using a pleated fabric as a shielding material, it is required to suppress leakage of light from a through hole formed in the screen through which an elevating cord is inserted.
SUMMARY OF THE INVENTION An object of the present invention is to provide a solar shading device capable of obscuring leakage of light from through-holes of slats.

A solar radiation shielding device for solving the above problems comprises a head box from which a plurality of elevating members are suspended, a plurality of shielding members that are elevated by the elevating of the plurality of elevating members, and the shielding member that is suspended from the headbox. and a ladder cord that rotatably supports each of the above, the shielding member has through-holes through which the elevating member is inserted at both ends in the longitudinal direction, and the ladder cord is parallel to the elevating member A pair of warp yarns and a weft yarn connecting the pair of warp yarns are provided, and the weft yarns are positioned at an intermediate portion side of the shielding member in the longitudinal direction from the elevating member inserted through the through-hole, and at an intermediate stage of the shielding member. , at least one location, the weft thread is positioned closer to the end portion of the shielding member than the elevating member inserted through the through-hole.

In the above-described solar radiation shielding device, the solar radiation shielding device includes a bottom rail arranged further below the lowermost shielding member among the plurality of shielding members, and the intermediate stage is formed by the head box and the bottom rail. It may be anywhere between .

In the above solar radiation shielding device, between the head box and the bottom rail, the weft thread is located on the end portion side of the shielding member from the elevating member through which the weft thread is inserted through the through hole for one stage of the shielding member. may be located at

A solar radiation shielding device for solving the above problems comprises a head box from which a plurality of elevating members are suspended, a plurality of shielding members that are elevated by the elevating of the plurality of elevating members, and the shielding member that is suspended from the headbox. and a bottom rail arranged further below the lowermost shielding member among the plurality of shielding members and connected to the elevating member, wherein the shielding member is and a through hole through which the elevating member is inserted at both ends in the longitudinal direction, the ladder cord includes a pair of warp yarns parallel to the elevating member and a weft yarn connecting the pair of warp yarns, and the bottom rail , the elevating member inserted through the through-hole is positioned closer to the end of the shielding member than the weft thread.

In the above-described solar radiation shielding device, directly below the head box, the elevating member inserted through the through hole may be positioned closer to the end portion of the shielding member than the weft thread.
A solar radiation shielding device for solving the above problems comprises a head box from which a plurality of elevating members are suspended, a plurality of shielding members that are elevated by the elevating of the plurality of elevating members, and the shielding member that is suspended from the headbox. and a bottom rail arranged further below the lowermost shielding member among the plurality of shielding members and connected to the elevating member, wherein the shielding member is and a through hole through which the elevating member is inserted at both ends in the longitudinal direction, the ladder cord includes a pair of warp yarns parallel to the elevating member and a weft yarn connecting the pair of warp yarns, and the through hole The elevating member that passes through the weft thread hangs down from the head box at an intermediate portion side in the longitudinal direction of the shielding member from the weft thread, and the weft thread passes through the through hole. The distance (C) from the headbox that switches from the side to the middle part side of the headbox is the distance (C) from the elevating member that is inserted through the through hole to the shielding member directly below the headbox and directly above the bottom rail. is set shorter than the projection dimension (A) up to the end in the longitudinal direction.

A solar shading device for solving the above problems includes a head box from which a first elevating member and a second elevating member hang, and a shielding member that elevates by the elevation of the first elevating member and the second elevating member. The head box includes a first guide portion, an elevation member lead-out portion, an elevation control portion, a rotating portion, and a second guide portion in this order from one end portion to an intermediate portion in the longitudinal direction, and The first guide part guides the first elevating member to be suspended, the second guide part guides the second elevating member to be suspended, and the turning part is the first guide part. and the first lifting member extending from the turning portion toward the turning portion is rotated from the turning portion toward the lifting control portion, and the lifting control portion rotates the first lifting member turned by the turning portion and the first lifting member 2, the second elevating member extending from the guide portion toward the elevating control portion is inserted, the inserted first elevating member and the second elevating member are delivered to the elevating member lead-out portion, a regulated state in which the member and the second elevating member allow movement in a direction to raise the shielding member and restrict movement in a direction to lower the shielding member; and movement regulation in a direction to lower the shielding member. and the lifting member lead-out part draws out the first lifting member and the second lifting member to the outside of the head box so that the shielding member can be moved up and down.

In the above solar radiation shielding device, the first lifting member may be positioned between the first guiding portion and the rotating portion so as to avoid the lifting control portion.
In the above solar radiation shielding device, the turning portion may be integrally attached to the elevation control portion.

The solar radiation shielding device may further include a third guide portion between the first guide portion and the elevation control portion for guiding the first elevating member extending from the first guide portion to the turning portion. good. In this case, the third guide portion may be configured by a member that positions the first elevating member along the front wall or the rear wall of the head box between the turning portion.

In the above solar radiation shielding device, the third guide portion may include a guide support portion that guides and supports the first elevating member extending from the first guide portion to the turning portion.
In the above solar radiation shielding device, at least one of the rotating portion and the third guide portion may be configured to include a positioning portion for positioning with respect to the headbox.

In the solar radiation shielding device described above, the turning portion and the third guide portion may be components having the same shape, and may be arranged vertically or horizontally reversed with respect to the headbox.

In the above solar radiation shielding device, a cap member may be arranged at the one end of the head box, and the cap member may be provided with the first guide portion integrated with the cap member.

The solar radiation shielding device further includes a ladder cord that is suspended from the head box and rotatably supports each of the shielding members, and the cap member is rotatably supported by a drum to which the ladder cord is fixed. It may be configured to be

In the above solar radiation shielding device, the cap member includes a closed surface that closes the one end and a support wall parallel to the closed surface, and the drum is arranged between the closed surface and the support wall. The support wall is provided with a bearing for rotatably supporting the shaft on one side of the drum, and the drum is rotatably supported on either the closed surface or the other side of the drum. The support projection may be provided on the other side, and the shaft hole with which the support projection is engaged may be provided on the other side.

ADVANTAGE OF THE INVENTION According to this invention, the solar radiation shielding apparatus which made it possible to make light leakage from the through-hole of a slat inconspicuous can be provided.

1 is a front view of a horizontal blind in one embodiment; FIG. 1 is a side view of a horizontal blind in one embodiment; FIG. 1 is a plan view of a slat used in a horizontal blind in one embodiment; FIG. The top view which shows the internal structure of the headbox used for the horizontal blind in one Embodiment. (a) is a side view showing the first lifting cord and the ladder cord at both ends in the longitudinal direction of the horizontal blind in one embodiment; 2 The side view which showed the raising/lowering cord and the ladder cord. The perspective view which shows the state to which the holder was attached in the center part of the longitudinal direction of a bottom rail. FIG. 2 is an exploded perspective view of the internal structure of the headbox; FIG. 4 is an exploded perspective view showing the mutual relationship between the headbox, the cord guide member, the support member and the cover; FIG. 4 is a side view showing a state in which the connecting portion of the cord guide member is bent inward and a state in which it is attached inside the head box; FIG. 4 is a plan view of a main part showing the relationship between the cord guide member and the second lifting cord; The perspective view which shows a guide part and a cover. FIG. 4 is a perspective view of a cord guide member; FIG. 4 is a front view of a main part showing the relationship between the second lifting cord and the guiding portion of the cover; FIG. 3 is an exploded perspective view showing the relationship between the headbox, cord guide member, and support member; FIG. 4 is a side view showing a state in which a support member is arranged with respect to a cord guide member arranged inside the headbox; FIG. 4 is an exploded perspective view showing a stopper, a rotating member, and a guide member; FIG. 4 is an exploded perspective view showing the support member and the drum of the ladder cord; FIG. 4 is an exploded perspective view showing the relationship between the headbox and the support member; The front view which shows the relationship between the horizontal blind and window frame in one Embodiment. The side view of the principal part which shows the state where the slat was piled up on the bottom rail in the horizontal blind in one embodiment. The perspective view which shows the modification of a cord|cord guide member. The perspective view which shows the modification of the connection part in a cord|cord guide member. The perspective view which shows the modification of a turning member and a guide member. FIG. 4 is an exploded perspective view of a cord guide member in which a second lifting cord is suspended from the bottom surface of the headbox; FIG. 11 is a perspective view of a main part showing a modified example in which a drum for supporting the ladder cord and a support roller for supporting the lifting cord are arranged in the cap member of the head box; FIG. 4 is an exploded perspective view showing the relationship between the cap member and the drum; (a) is a plan view of the internal structure of the headbox in which an operation guide member guides the lifting cord along the rear wall, and (b) is a cross-sectional view thereof. (a) is a plan view of the internal structure of the headbox in which a guide member guides the lift cord along the rear wall, and (b) is a cross-sectional view thereof. (a) is a plan view of the internal structure of the headbox in which an operation guide member guides the lift cord along the front wall, and (b) is a cross-sectional view thereof. (a) is a plan view of the internal structure of the head box in which the operation guide member guides the lift cord along the upper side of the operation guide member, and (b) is a cross-sectional view thereof. (a) is a plan view of the internal structure of the headbox in which a guide member guides the lift cord along the rear wall, and (b) is a cross-sectional view thereof. (a) is a plan view of the internal structure of the head box in which the operation guide member guides the lift cord along the lower side of the operation guide member, and (b) is a cross-sectional view thereof. (a) is a plan view of the internal structure of the headbox in which the lifting cord passes through the operation guide member, and (b) is a cross-sectional view thereof. The top view of the internal structure of the headbox which has arrange|positioned the 1st stopper and the 2nd stopper on both sides of an operation guide member. (a) is a front view showing a state in which the weft thread positioned closer to the middle portion of the headbox than the first lifting cord passing through the through hole of the slat is positioned closer to the end portion side of the slat than the first lifting cord; 3(b) is a front view showing a state in which the weft yarn positioned closer to the end of the slat than the first lifting cord is positioned closer to the intermediate portion of the headbox than the first lifting cord; FIG. FIG. 4 is a plan view of a slat with communication portions on side edges; FIG. 4 is a plan view of a slat with a communication on the trailing edge; FIG. 3 is a plan view of a slat with connections at the leading and trailing edges; A perspective view of a steel headbox. (a) is a cross-sectional view taken along the line aa in FIG. 39, and (b) is a cross-sectional view of the headbox having a continuous hole connecting the opening and the insertion hole. A perspective view of an aluminum headbox. 41(a) is a cross-sectional view along line aa of FIG. 41, and (b) is a cross-sectional view of the headbox having a continuous hole connecting the opening and the insertion hole. The perspective view which shows the example which shifted the position of the opening part and the insertion hole in the longitudinal direction of a headbox. (a) is a perspective view of an operation guide member, and (b) is a plan view showing the internal structure of the headbox. (a) is a front view of the horizontal blind, (b) is a plan view showing the internal structure of the headbox, and (c) is a side view of the horizontal blind.

A horizontal blind according to one embodiment will be described below with reference to the drawings.
As shown in FIGS. 1 and 2, the horizontal blind 10 includes a head box 11 attached to a mounting portion such as a ceiling, a window frame, a curtain box, etc., and a plurality of slats 12 as shielding members for shielding solar radiation. there is The horizontal blind 10 also includes three ladder cords 13 that support a plurality of slats 12 in a tilt-adjustable manner, a bottom rail 14 positioned below the lowermost slat 12, and one end attached to the bottom rail 14. It has a first lifting cord 15a as a connected first lifting member and a second lifting cord 15b as a second lifting member. A first lifting cord 15a and a ladder cord 13 are arranged at both ends of the slat 12 in the longitudinal direction, and a second lifting cord 15b and the ladder cord 13 are arranged at an intermediate portion in the longitudinal direction of the slat 12. ing.

The slat 12 is made of a synthetic resin plate, a metal plate such as aluminum or stainless steel, or the like, and is formed in a long and narrow rectangular thin plate shape, and has an arc-shaped upper surface. In addition, the slat 12 may be formed of a wooden board. The plurality of slats 12 are arranged along the elevation direction, which is the height direction of the horizontal blind 10, and are supported by ladder cords 13 suspended from the head box 11 so as to be tilt-adjustable. A bottom rail 14 having substantially the same length as the slat 12 is arranged below the slat 12 of the lowest stage.

The bottom rail 14 functions as a weight member when maintaining the lowered state of the plurality of slats 12, and is made of a metal material such as SECC. The bottom rail 14 has substantially the same longitudinal length and lateral width as the slats 12, and the plurality of slats 12 are stacked on the bottom rail 14 when the bottom rail 14 is pulled up. The ladder cord 13 is connected to the bottom rail 14 . The bottom rail 14 is connected to a first lifting cord 15a and a second lifting cord 15b drawn out from the head box 11, and is suspended from the head box 11 by the first lifting cord 15a and the second lifting cord 15b. .

As shown in FIG. 3 , in each of the plurality of slats 12 constituting the slat group, at both ends in the longitudinal direction of the slat 12 , there is a central portion in the front-rear direction, which is the width direction, and a long side in the width direction. rectangular through-holes 22 are arranged. A first lifting cord 15 a is inserted through each of the through holes 22 . The position where each through-hole 22 is arranged is as close to both ends as possible, and the length from the through-hole 22 to the tip is such that when supported by the ladder cord 13, the portion ahead of the through-hole 22 is reduced by its own weight. It is considered to be the extent that it does not bend. In addition, the second lifting cords 15b are arranged at the longitudinally central portion of the slat 12 on opposite side edges of the slat 12 in the longitudinal direction. The slat 12 is not formed with a through-hole necessary for inserting the second lifting cord 15b. A high light shielding property is ensured in the central portion of the slat 12 in the longitudinal direction because the above-described through hole is not formed.

As shown in FIG. 4, in the horizontal blind 10, the opening and closing of the slat 12 and the elevation of the bottom rail 14 are manually performed. It is concentrated at one end of the box 11 in the longitudinal direction. Specifically, the first lifting cord 15a on the left side in FIG. 4 is guided from outside the head box 11 into the head box 11 by a support member 17a as a first guide portion, and moves inside the head box 11 to the left side in FIG. It extends from one end to the right end. 4 is guided from outside the head box 11 into the head box 11 by a support member 17b as a first guide portion, and moves through the inside of the head box 11 at the end on the right side in FIG. from the center toward the longitudinal center. The second lifting cord 15b positioned in the longitudinal central portion of the headbox 11 is guided from outside the headbox 11 into the headbox 11 by a cord guide member 17c as a second guide portion, and extends longitudinally through the headbox 11. It extends from the center of the direction to the right.

A tilt pole 18a as an operating portion for raising and lowering the bottom rail 14 and an equalizer 18 provided at the tip of the tilt pole 18a are positioned inside the head box 11 from the support member 17b toward the central portion in the longitudinal direction. . Therefore, the first lifting cord 15a on the right side in FIG. 4 extends leftward from the right end of the head box 11 in FIG. folded to the right. The two first elevating cords 15a and the two second elevating cords 15b are guided to a stopper 19 as an elevation control unit that prevents the slats 12 and the bottom rails 14 from falling due to their own weight. . That is, the two first lifting cords 15a and the two second lifting cords 15b are brought close to each other so as to approach the center line extending in the longitudinal direction through the center of the head box 11 in the longitudinal direction, and are guided to the stopper 19. be killed. In other words, the two first lifting cords 15a and the two second lifting cords 15b are parallel to each other and guided to the stopper 19 after being narrower than the insertion end of the stopper 19. As shown in FIG. The stopper 19 switches between a state in which the four lifting cords 15a and 15b are operated to prevent movement of the lifting cords 15a and 15b and a state in which movement of the lifting cords 15a and 15b is permitted. The four lifting cords 15a and 15b gathered by the stopper 19 are led out of the head box 11 through an operation guide member 17e as a lifting member lead-out portion and bound by an equalizer 18. As shown in FIG. Specifically, the stopper 19 permits the lifting cords 15a and 15b to move up and down the slat 12 and restricts the movement to lower the slat 12, and cancels the movement restriction to lower the slat 12. Switch to and from the released state. The stopper 19 is normally in a regulated state, and once the lifting cords 15a and 15b are moved in the direction to raise and lower the slat 12, the stopper 19 is released and moves the lifting cords 15a and 15b in the direction to lower the slat 12.

A portion of the operation guide member 17e faces the outside from the front wall 11b, and the tilt pole 18a is attached to the portion. The operation guide member 17e has a tilt gear box for rotating the tilt shaft. The gear box of the tilt gear is a rotation control unit having a gear train that rotates a tilt shaft that tilts the slat 12 based on the rotation of the tilt pole 18a when it is rotated left and right. A tilt shaft that tilts the slats 12 is a control shaft member that extends along the longitudinal direction of the headbox 11 . The four lifting cords 15a and 15b led out from the stopper 19 are inserted into the operation guide member 17e, change their paths in the direction of the front wall 11b, and lead out of the head box 11 from the lead-out portion. The operation guide member 17e includes therein support rollers for changing the paths of the four lifting cords 15a and 15b.

The equalizer 18 can be pulled downward to raise the bottom rail 14 and slats 12, and stopped to stop the bottom rail 14 and slats 12 from rising. When ascending, the bottom rail 14 ascends, and as the bottom rail 14 ascends, the plurality of slats 12 are sequentially stacked on the bottom rail 14 from a position closer to the bottom rail 14 . When the slat 12 is to be lowered, the equalizer 18 is slightly pulled downward and loosened, and when stopped halfway, the equalizer 18 is pulled again to stop the descent of the bottom rail 14.例文帳に追加When descending, the bottom rail 14 descends, and as the bottom rail 14 descends, each of the plurality of slats 12 also descends. Further, by rotating the tilt pole 18a left and right, the slat 12 can be rotated to switch between the fully closed state and the fully opened state.

Inside the head box 11, from the right end, the support member 17b of the first lifting cord 15a, the operation guide member 17e, the cord guide member 17c of the second lifting cord 15b, and the support member 17a of the first lifting cord 15a extend in the longitudinal direction. lined up along The operation guide member 17 e leads the first lifting cord 15 a and the second lifting cord 15 b out of the head box 11 and is attached to the equalizer 18 . The equalizer 18 and the tilt pole 18a, which are the operating parts, are arranged between the support member 17b and the stopper 19, and the support members 17a and 17b are arranged as close to both ends of the headbox 11 as possible.

As shown in FIG. 5( a ), two first lifting cords 15 a arranged at both ends of the slat 12 in the longitudinal direction move up and down the both ends of the bottom rail 14 in the longitudinal direction. Each of the two first lifting cords 15a is inserted through a through hole 22 located in the center of each slat 12 in the widthwise direction, and its tip is attached to the center of the bottom rail 14 in the widthwise direction. They are connected by being inserted through the holes and locked inside.

As shown in FIG. 5B, the second lifting cord 15b positioned at the longitudinal center of the slat 12 moves up and down the center of the bottom rail 14. As shown in FIG. The second elevating cord 15b extends along the elevating direction along the front edge portion of the slat 12 on the inside of the room and the rear edge portion on the outside of the room. The second elevating cord 15b is composed of a single cord-like member, and the intermediate portion 15x is rotated on the bottom rail 14 so that the first elevating portion 15y and the second elevating portion 15z located on both sides of the intermediate portion 15x are arranged. extends to a leading edge on the inside of the room and a trailing edge on the outside of the room. The first elevating section 15y positioned at the front edge of the slat 12 of the second elevating cord 15b and the second elevating section 15z positioned at the rear edge of the slat 12 face each other with the slat 12 interposed therebetween. The second elevating cord 15b suspends the bottom rail 14 in the front-rear direction, so that the bottom rail 14 can be lifted and lowered while preventing the bottom rail 14 from tilting toward the inside or outside of the room.

All the lifting cords 15a and 15b are cord-like members such as round cords having a circular cross section, and have the same thickness and strength over the entire length. The ends of the lifting cords 15a and 15b opposite to the bottom rail 14 are bound by an equalizer 18 via the headbox 11. As shown in FIG. The lifting cords 15 a and 15 b are members for suspending the bottom rail 14 from the head box 11 and have strength enough to withstand the weight of the bottom rail and the weight of the slats 12 . The lifting cords 15a and 15b suspend the bottom rail 14. As shown in FIG.

The ladder cord 13 includes a pair of warp threads 13a extending in the height direction of the horizontal blind 10 and a weft thread 13b arranged between the warp threads 13a. Weft threads 13b support each slat 12 from below. The length of protrusion from the ladder cords 13 positioned at both ends of the slat 12 in the longitudinal direction to the end of the slat 12 is such that the slat 12 does not bend under its own weight. The weft thread 13b may be looped with the upper weft thread and the lower weft thread, and the slat 12 may be supported by passing the slat 12 between the upper weft thread and the lower weft thread. In addition, between the warp yarns 13a, the upper weft yarn and the lower weft yarn that are parallel to each other are vertically displaced to provide two crossings between the two warp yarns 13a. You may make it insert the slat 12 in one space. Furthermore, between the warp yarns 13a, two weft yarns are crossed to provide one crossing portion, a first space is provided between one warp yarn 13a and the crossing portion, and a first space is provided between the crossing portion and the other warp yarn 13a. , and the slat 12 may be inserted into any of the spaces.

The two first lifting cords 15a located at both ends of the slat 12 are woven into the weft threads 13b of the ladder cords 13 located at both ends of the slat 12. As shown in FIG. That is, the first elevating cord 15a is positioned inside the predetermined weft thread 13b (on the central side in the longitudinal direction of the slat 12), and is positioned outside (of the slat 12) for a different predetermined weft thread 13b. are woven so as to be located on the longitudinal end side). That is, the first lifting cords 15a are woven into the ladder cords 13 alternately from the inside to the outside and then from the outside to the inside of the weft yarn 13b. Since the ladder cords 13 located at both ends of the slat 12 in the longitudinal direction are located near the ends of the slat 12 , the weft thread 13 b may come off the slat 12 . The two first lifting cords 15a are woven into the ladder cord 13 so that the ends of the slats 12 where the first lifting cords 15a are inserted through the through-holes 22 do not come off the weft threads 13b.

Among the three ladder cords 13, the warp thread 13a of the ladder cord 13 along the second lifting cord 15b has a pico 13c through which the second lifting cord 15b is inserted. The pico 13c is an annular body formed by pulling out threads from the warp threads 13a when the ladder cord 13 is a knitted string. The pico 13c is arranged on each warp thread 13a positioned inside the room and outside the room, and the first lifting part 15y inside the room and the second lifting part 15z outside the room of the second lifting cord 15b are inserted. A resin annular member 13d is attached to the pico 13c of the warp 13a at the position closest to the head box 11. As shown in FIG. The annular member 13d has a higher physical strength than the pico 13c, and has a strength that does not break due to friction even when the second lifting cord 15b moves repeatedly. Although the pico 13c has been described as an annular portion made of yarn at the knot between the warp yarn 13a and the weft yarn 13b, it may be configured by integrally providing a resin-molded annular body to the warp yarn 13a. Note that the annular member 13d may be omitted.

[Holder configuration]
A holder 16 is attached to the bottom rail 14 at a position where the three ladder cords 13 hang down. The warp thread 13a of the ladder cord 13 is also a string-like member, and is turned on the bottom rail 14 so as to extend to the front edge on the inside of the room and the rear edge on the outside of the room. Since the intermediate portion 15x is also rotated on the bottom rail 14, the first elevating portion 15y and the second elevating portion 15z located on both sides of the intermediate portion 15x extend to the front edge portion inside the room and the rear edge portion outside the room. exist. A holder 16 arranged at an intermediate position of the bottom rail 14 holds a second lifting cord 15b and a ladder cord 13 positioned along the second lifting cord 15b.

As shown in FIG. 6, the holder 16 arranged in the middle portion of the bottom rail 14 has a main body portion 16a covering the bottom surface of the bottom rail 14. 14a and an engaging portion 16b that engages with the trailing edge groove portion 14b. The opposing engaging portion 16b has a first groove 16c with which the intermediate portion of the warp yarn 13a of the ladder cord 13 is engaged, and a second groove 16d with which the intermediate portion 15x of the second lifting cord 15b is engaged. ing. Further, on the body portion 16a, an adjustment member 16e configured by a screw is arranged on the path of the warp thread 13a engaged with the first groove 16c. A distal end portion of the shaft portion of the adjusting member 16e faces the inner surface of the main body portion 16a and is formed with an engagement groove 16f. The warp thread 13a is engaged with the engagement groove 16f. Note that the main body portion 16 a does not have to cover the entire bottom surface of the bottom rail 14 .

A recessed portion 16g is formed around the adjustment member 16e on the inner surface of the body portion 16a. When the adjustment member 16e is rotated and the warp yarn 13a is wound around the shaft portion of the adjustment member 16e, excess warp yarn 13a that is wound is placed in the recessed portion 16g. The holder 16 engages the warp thread 13a in the first groove 16c, engages the intermediate portion 15x of the second lifting cord 15b in the second groove 16d, and engages the engagement portion 16b from the bottom side of the bottom rail 14. are engaged with the leading edge groove portion 14a and the trailing edge groove portion 14b. The holder 16 is thereby attached to the bottom rail 14 . At this time, the intermediate portion of the warp thread 13a engaged with the first groove 16c is pressed against the bottom surface of the bottom rail 14 and the first groove 16c. Further, the intermediate portion 15x of the second lifting cord 15b engaged with the second groove 16d is pressed against the bottom rail bottom surface and the second groove 16d. As a result, the position where the warp thread 13a and the second lifting cord 15b are pulled out from the bottom rail 14 is fixed by the holder 16 without shifting in the direction in which the cord extends. Further, the warp thread 13a engaged with the first groove 16c and the intermediate portion 15x of the second lifting cord 15b engaged with the second groove 16d are parallel to each other between the main body portion 16a and the bottom surface of the bottom rail 14. will be placed in good condition. Therefore, the warp threads 13a and the second lifting cords 15b extend parallel to each other on the front side and the rear side of the horizontal blind. Further, the warp threads 13a and the second lifting cords 15b are in a non-parallel state on the front side and the rear side of the horizontal blind, and deterioration of the appearance can be suppressed. As for the holder 16, if at least the first groove 16c supports the warp thread 13a and the second groove 16d supports the intermediate portion 15x of the second lifting cord 15b, the warp thread 13a and the second lifting cord 15b are parallel to each other. It doesn't have to be.

Note that the intermediate portion 15x of the second lifting cord 15b engaged with the second groove 16d may not be pressed against the bottom rail bottom surface or the second groove 16d. In this case, the intermediate portion 15x moves forward and backward with respect to the bottom rail 14 and the holder 16, and the state and position of the second lifting cord 15b are adjusted according to the situation.

The screw head of the adjusting member 16e is formed with a groove that is exposed on the outer surface of the main body 16a and engages with a tool such as a coin or a flat-blade screwdriver. The length of the warp thread 13a is adjusted by engaging a tool in the groove and rotating the adjustment member 16e.

Note that the holders 16 that hold the warp threads 13a of the ladder cords 13 located at both ends in the longitudinal direction of the bottom rail 14 do not have the second grooves 16d with which the intermediate portions 15x of the second lifting cords 15b are engaged. Become. Further, the adjusting member 16e may be omitted regardless of the holder 16. FIG.

[Internal configuration of headbox]
As shown in FIGS. 4 and 7, the head box 11 includes a bottom plate 11a, a front wall 11b facing the inside of the room, and a rear wall 11c facing the outside of the room. and has a U-shaped cross section. The front wall 11b and the rear wall 11c are hanging walls, and the first distance between the front wall 11b and the rear wall 11c is constant from the opening 11d to the bottom plate 11a. In the internal space defined by the bottom plate 11a, the front wall 11b, and the rear wall 11c of the head box 11, support members 17a and 17b are arranged at both ends in the longitudinal direction, and support members 17a and 17b are arranged in the middle in the longitudinal direction. A cord guide member 17c as a second guide portion is arranged in the portion. Further, a stopper 19 as an elevation control section is arranged between the support member 17b and the cord guide member 17c. On the support member 17b side of the stopper 19, a guide member 20 is arranged as a third guide portion for guiding the first lifting cord 15a from the support member 17b along the rear wall 11c. A rotating member 17d is disposed on the cord guide member 17c side of the stopper 19 as a rotating portion that rotates the first lifting cord 15a along the rear wall 11c and guides it to the stopper 19. As shown in FIG. Here, the width of the head box 11 in the front-rear direction is narrowed to the same extent as the width in the front-rear direction of the slats 12, or to a slightly wider extent, thereby achieving size reduction.

[Structure of cord guide member 17c]
As shown in FIG. 8, the cord guide member 17c includes a front contact portion 31 facing the front wall 11b and a rear contact portion 32 facing the rear wall 11c. The front-side contact portion 31 includes a front-side guide portion 33 protruding integrally with the front-side contact portion 31 at substantially the center in the longitudinal direction. Further, the rear contact portion 32 has a rear guide portion 34 protruding integrally with the rear contact portion 32 at substantially the center in the longitudinal direction.

The front contact portion 31 has a flat surface facing the front wall 11b corresponding to the shape of the inner surface of the front wall 11b. The rear contact portion 32 also has a flat surface facing the rear wall 11c corresponding to the shape of the inner surface of the rear wall 11c.

The front side guide portion 33 protrudes from the front side contact portion 31 to fit into an opening portion 36 as a first opening portion formed in the front wall 11b and protrude from the outer surface of the front wall 11b. . The rear side guide portion 34 also protrudes from the rear side contact portion 32 to fit into an opening 36 as a first opening formed in the rear wall 11c and protrude from the outer surface of the rear wall 11c. do.

The front side guide portion 33 guides the entry and exit of the first lifting portion 15y positioned on the front wall 11b side of the second lifting cord 15b. The front side guide portion 33 functions as a front side route changing portion that changes the route of the second lifting cord 15b hanging down from the outer surface of the front wall 11b to a route extending inside the head box 11 . Further, the rear side guide portion 34 guides the entry and exit of the second lifting portion 15z located on the rear wall 11c side. The rear side guide portion 34 functions as a rear side route changing portion that changes the route of the second lifting cord 15b hanging down from the outer surface of the rear wall 11c to a route extending inside the head box 11 .

The front side guide portion 33 and the rear side guide portion 34 are protruding portions with respect to the outer surface of the front wall 11b and the outer surface of the rear wall 11c. When assembling or replacing the second lifting cord 15b, the slat 12 does not become an obstacle, and the tip of the second lifting cord 15b can be easily inserted from the lower surface of the front-side guide portion 33 and the rear-side guide portion 34. be.

The front side contact portion 31 and the rear side contact portion 32 are connected by a connecting portion 37 . The connecting portion 37 is formed by bending a thin plate into an M shape. The connecting portion 37 is elastically displaced in the direction of approaching each other when receiving an external force from an operator or a tool that narrows the distance between the front side contact portion 31 and the rear side contact portion 32. there is As shown in FIG. 9, the basic state of the connecting portion 37 is a state in which it is not elastically displaced. At this time, the distance between the surface of the front contact portion 31 facing the front wall 11b and the surface facing the rear wall of the rear contact portion 32 is the first distance between the inner surface of the front wall 11b and the inner surface of the rear wall 11c. The interval is the same as the interval 30a or slightly wider. The front side guide portion 33 and the rear side guide portion 34 are brought close to each other until they can be inserted through the opening 11d between the front wall 11b and the rear wall 11c, and are narrower than the interval between the front wall 11b and the rear wall 11c. 2 intervals 30b are provided. That is, the connecting portion 37 relatively displaces the position of the rear side contact portion 32 with respect to the front side contact portion 31 . In other words, the position of the front contact portion 31 relative to the rear contact portion 32 is relatively displaced.

In the cord guide member 17c in the basic state, the distance between the front side guide portion 33 and the rear side guide portion 34 is the same as or slightly wider than the first distance 30a. Therefore, it is difficult to insert the cord guide member 17c through the opening 11d of the head box 11 without increasing the distance between the front wall 11b and the rear wall 11c. Therefore, when the cord guide member 17c is arranged inside the head box 11, the front side contact portion 31 and the rear side contact portion 32 of the cord guide member 17c are displaced in a direction in which the front side contact portion 31 and the rear side contact portion 32 approach each other by an external force. The gap between the guide portion 33 and the rear side guide portion 34 is a second gap 30b narrower than the first gap 30a. Of course, the gap between the outer surface of the front side guide portion 33 and the outer surface of the rear side guide portion 34 may be narrower than the first gap 30a. In this state, the cord guide member 17c is inserted into the head box 11 through the opening 11d. Thereafter, the connecting portion 37 is elastically restored by the elastic restoring force of the connecting portion 37, and the front-side guide portion 33 and the rear-side guide portion 34 are displaced in the direction in which the second gap 30b is enlarged. The opposing surface of the front contact portion 31 is elastically biased against the inner surface of the front wall 11b, and the opposing surface of the rear contact portion 32 is elastically biased against the inner surface of the rear wall 11c. transitions to the abutted state. As a result, the front side guide portion 33 is fitted into the opening 36 of the front wall 11b, and the rear side guide portion 34 is fitted into the opening 36 of the rear wall 11c. The cord guide member 17c is positioned and fixed inside the head box 11 .

In this way, the cord guide member 17c can be attached to the headbox 11 by widening the space between the front wall 11b and the rear wall 11c of the headbox 11, or can be installed from the open ends of the longitudinal ends of the headbox 11 to the central portion. It is no longer necessary to slide the inside of the head box 11 to attach it. In this regard, the cord guide member 17c can be easily mounted inside the headbox 11. As shown in FIG.

As shown in FIGS. 10 and 11, the front-side guide portion 33 and the rear-side guide portion 34 are provided with a tubular portion 38 serving as an inlet/outlet for the second lift cord 15b whose upper and lower surfaces are open. The lower opening of the tubular portion 38 serves as an outlet for the second lifting cord 15b, and the outlet is positioned so as to protrude from the front wall 11b and the rear wall 11c. The tubular portion 38 has a pair of spaced-apart parallel rotation support walls 38a parallel to the front wall 11b and the rear wall 11c, and a rising wall 38d perpendicular to the rotation support wall 38a, the front wall 11b and the rear wall 11c. consists of A pulley 39 serving as a guide support section for supporting the first elevation section 15y and the second elevation section 15z of the second elevation cord 15b is arranged in the space formed by the rotation support wall 38a and the rising wall 38d. A rotation shaft 39a of the pulley 39 is rotatably supported in a support recess 38b arranged in the opposing rotation support wall 38a. The pulley 39 changes the path of the second lifting cord 15b hanging down from the outer surface of the front wall 11b and the rear wall 11c to a path extending inside the head box 11 .

Here, the rotation shaft 39a intersects the plane parallel to the front wall 11b and the rear wall 11c of the rotation support wall 38a, and is perpendicular to the pair of rotation support walls 38a. are arranged to intersect. That is, the rotating shaft 39a is obliquely arranged with respect to the pair of rotating support walls 38a. In addition, the pulley 39 is arranged in the tubular portion 38 in a direction close to the passage 41 in the longitudinal direction of the head box 11, and the wider space on the opposite side of the passage 41 is the second lifting cord 15b. It is considered as an insertion part. The pulley 39 guides the second lifting cord 15 b and supports the load of the bottom rail 14 .

A second lifting cord 15 b hanging from the headbox 11 is redirected into the headbox 11 by a pulley 39 . Behind the front side contact portion 31 and the rear side contact portion 32, a passage 41 through which the second lifting cord 15b whose direction is changed toward the inside of the head box 11 by a pulley 39 is arranged. there is The pulley 39 changes the direction of the second lifting cord 15 b toward the direction of the passage 41 .

As shown in FIGS. 10 and 12, the passage 41 is a space that connects the tubular portion 38 in which the pulley 39 is arranged and the inside of the head box 11, and is inclined to the front wall 11b and the front wall 11b. extended. The passage 41 has a first doorway 41a on the side of the pulley 39 and a second doorway 41b on the inner side of the head box 11, for example, the side closer to the stopper 19. As shown in FIG. As shown in FIGS. 12 and 13, in order to pass the second lifting cord 15b through the passage 41, it is inserted through the tubular portion 38 from the lower surface of the tubular portion 38, that is, from the slat 12 side, and then through the first doorway 41a. inserted into the Therefore, the first doorway 41a is wide open so that the tip of the second lifting cord 15b can be easily inserted. Here, the upper surface of the first doorway 41a is configured as an inclined guide surface 41c that descends toward the second doorway 41b.

A guide wall 42 is erected between the pulley 39 and the first doorway 41a to guide the tip of the second lifting cord 15b from the pulley 39 to the first doorway 41a.
Furthermore, inside the head box 11, a guide roller 43 as a guide portion of the second doorway 41b that guides the second lifting cord 15b to the stopper 19 is arranged at the second doorway 41b. Inside the head box 11 , the second lifting cords 15 b that have passed through the guide rollers 43 of the front side guide portions 33 and the rear side guide portions 34 approach each other and are guided to the stopper 19 in a parallel state. As shown in FIG. 10, as an example, the distance A between two second lifting cords 15b is narrowed to be narrower than the width B of the insertion end 19a of the stopper 19 and inserted into the insertion end 19a. Further, as an example, the distance between the two first lifting cords 15a (not shown in FIG. 10) and the two second lifting cords 15b is narrowed until it becomes narrower than the width B of the insertion end 19a of the stopper 19. and is inserted into the insertion end 19a.

As shown in FIGS. 10 and 11, the front-side guide portion 33 and the rear-side guide portion 34 are fitted into the openings 36 of the front wall 11b and the rear wall 11c, and are further attached to the front wall 11b and the rear wall 11c. It protrudes outward. A cover 46 is attached to the front side guide portion 33 and the rear side guide portion 34 from the outside of the front wall 11b and the rear wall 11c while being fitted in the opening 36 . The cover 46 has a main surface portion 46a positioned parallel to the front wall 11b and the rear wall 11c of the rotation support wall 38a of the cylindrical portion 38, and side wall portions 46b provided facing the side edges of the main surface portion 46a. , and an upper surface portion 46c that closes the upper surface surrounded by the main surface portion 46a and the pair of side wall portions 46b. Further, the lower surface portion is opened in the direction of the slat 12 so that the second lifting cord 15b can enter and exit.

As shown in FIG. 11, a rising wall 38d that constitutes the tubular portion 38 and is perpendicular to the front wall 11b and the rear wall 11c is provided with a mounting groove 38e for attaching the cover 46 to the tubular portion 38. ing. The mounting groove 38e is arranged along the vertical direction, and the protrusion 38f is arranged in the middle of the vertical direction. A side wall portion 46b of the cover 46 is provided with a guide rail 46d that engages with the mounting groove 38e. The guide rail 46d is provided with a recess 46e that engages with the protrusion 38f.

The cover 46 has a lower surface portion having an opening inserted from the upper surface of the cylindrical portion 38 . Then, the cover 46 is inserted until the guide rail 46d engages the mounting groove 38e and the projection 38f engages the recess 46e. During assembly, the tip of the second lifting cord 15b is inserted into the head box 11 with the cover 46 attached to the front side guide portion 33 and the rear side guide portion 34 . The inner surface of the main surface portion 46a of the cover 46 is provided with a guiding wall 47 as a guiding portion having an arc-shaped notch at the tip. Two guiding walls 47 are provided in parallel here, and are formed so that the lower side is lower and the upper side is higher. The tip surfaces of the two guide walls 47 form a concave curved surface, and serve as a guide portion that guides the tip of the second lifting cord 15b to the first doorway 41a. As shown in FIG. 13, when the tip of the second lifting cord 15b inserted from below comes into contact with the guide wall 47 when it passes through the pulley 39, it is guided by the concave curved surface to move in the 90° direction. ° and guided to the first doorway 41a. The tip of the second lift cord 15b hits a position biased toward the first doorway 41a with respect to the center line 48 extending in the vertical direction of the guide wall 47, so that the traveling direction is bent 90° following the curved surface. As shown in FIG. 10, the inner surface of the main surface portion 46a also presses the end of the rotation shaft 39a of the pulley 39. As shown in FIG.

As shown in FIG. 8, the cord guide member 17c arranged inside the head box 11 further supports the warp thread 13a of the ladder cord 13 between the front side guide portion 33 and the rear side guide portion 34. A support member 51 is arranged. The support member 51 has two side walls 51 a that face each other in the longitudinal direction of the headbox 11 . The opposing side wall 51a has a bearing portion 53 formed of a recess for rotatably supporting a drum 52 to which the two warp threads 13a of the ladder cord 13 are fixed.

The drum 52 includes a cylindrical body portion 52a and shaft portions 52b protruding from opposite side surfaces of the body portion 52a. The shaft portion 52b has a non-circular shaft hole 52c. A tilt shaft that rotates the drum 52 and has the same cross-sectional shape as the shaft hole 52c is inserted through the shaft hole 52c. The bearing portion 53 supports a cylindrical shaft portion 52b protruding from the side surface. The ends of the warp threads 13a of the ladder cord 13 are locked in locking grooves 52d formed in the outer peripheral surface of the body portion 52a.

As shown in FIGS. 14 and 15, the tip of the side wall 51a has a notch 57. As shown in FIGS. Engagement projections 57a projecting inwardly with respect to the front wall 11b and the rear wall 11c are formed at the distal ends of the front wall 11b and the rear wall 11c. The notch 57 is engaged with an engaging protrusion 57a formed at the tip of the front wall 11b and the rear wall 11c.

The bottom plate 51b is formed with a through hole 54 having a long axis extending in the front-rear direction. A positioning protrusion 56 is formed around the through-hole 54 on the surface of the bottom plate 51 b facing the bottom plate 11 a of the bottom rail 14 . The positioning protrusion 56 has, for example, an annular shape so as to surround the through hole 54 . The positioning protrusion 56 is fitted into an insertion hole 55 as a second opening having the same shape as the through hole 54 formed in the bottom plate 11 a of the head box 11 . Further, a bulging portion 58 is formed on the side wall 51c facing the front wall 11b and the rear wall 11c. The bulging portion 58 presses the end of the rotating shaft 39 a of the pulley 39 when arranged between the front side guide portion 33 and the rear side guide portion 34 .

In addition, as shown in FIG. 8, between the opening 36 as the first opening and the insertion hole 55 as the second opening, a partition 50 is provided to separate and partition the two through holes. The partition part 50 is provided at the same position in the longitudinal direction of the headbox 11, but separates the opening part 36 and the insertion hole 55, thereby suppressing a decrease in the strength of the headbox 11 at that position. In particular, the partition portion 50 includes a corner portion formed by the bottom plate 11a and the front wall 11b and a corner portion formed by the bottom plate 11a and the rear wall 11c, thereby further suppressing a decrease in strength.

As shown in FIGS. 10 and 14, when the support member 51 is inserted between the front side guide portion 33 and the rear side guide portion 34 of the cord guide member 17c arranged inside the head box 11, the positioning is performed. The protrusion 56 is fitted into the insertion hole 55 of the bottom plate 11a and positioned. Along with this, the support member 51 restricts the front side guide portion 33 and the rear side guide portion 34 from being displaced in the direction away from the front wall 11b and the rear wall 11c. In other words, the support member 51 functions as a restricting member that restricts the displacement of the front side contact portion 31 and the rear side contact portion 32 in the direction in which they become narrower than the first gap 30a. Further, the bulging portion 58 presses the rotating shaft 39 a of the pulley 39 toward the cover 46 . The rotating shaft 39a is restrained from being displaced in the axial direction by being sandwiched between the bulging portion 58 and the inner surface of the main surface portion 46a of the cover 46. As shown in FIG. From the drum 52 attached to the bearing portion 53 , the warp 13 a of the ladder cord 13 hangs down through the through hole 54 and the insertion hole 55 .

It should be noted that the cord guide member 17c is constructed as an integrally molded product. That is, the front contact portion 31, the rear contact portion 32, the front guide portion 33, the rear guide portion 34, and the connecting portion 37 are integrally formed. The pulley 39 and the guide roller 43 are separate members.

[Structure of Rotating Member 17d]
As shown in FIGS. 4 and 16, the turning member 17d is arranged adjacent to the stopper 19 on the cord guide member 17c side. The rotating member 17 d includes an upper support portion 63 , a lower support portion 64 , and side support portions 65 connecting the upper support portion 63 and the lower support portion 64 . The upper support portion 63 and the lower support portion 64 are parallel to each other, and the roller 62 is rotatably arranged therebetween. A space for rotatably supporting the two rollers 62 is formed between the upper support portion 63 and the lower support portion 64 . Two pairs of shaft holes 63a and 64a for rotatably supporting the rotation shaft of the roller 62 are arranged at positions of the upper support portion 63 and the lower support portion 64 facing each other. A support shaft of the roller 62 is supported in the shaft holes 63a and 64a. In the turning member 17d, one roller 62 is arranged on the side closer to the rear wall 11c.

The side support portion 65 has a pair of attachment pieces 66 for attachment to the ends of the stopper 19 . The pair of mounting pieces 66 has protrusions 66c protruding inward at their distal ends. A support piece 66 b is formed inside the pair of mounting pieces 66 so as to be spaced apart from the mounting pieces 66 . On the other hand, the end face of the stopper 19 on the insertion end 19a side in the longitudinal direction is provided with a pair of connection pieces 66a that are connected to the turning member 17d. The connecting piece 66a is formed slightly narrower than the space between the pair of mounting pieces 66, and has a projecting portion 66d directed outward at the tip. The rotating member 17d has a pair of connection pieces 66a inserted between the pair of mounting pieces 66 and the support piece 66b, and projections formed at the tips of the pieces. By engaging the portions 66c and 66d, it is attached to the end surface of the stopper 19 on the insertion end 19a side. The pair of mounting pieces 66 and the pair of support pieces 66b have the same height at the tip, so that even when the end face of the stopper 19 on the delivery end 19b side in the longitudinal direction abuts against the end face of the stopper 19, the end face of the stopper 19 does not move. It is configured so that it does not rattle against the

The rotating member 17d has a vertically and horizontally symmetrical shape, and the upper surface of the upper support portion 63 and the lower surface of the lower support portion 64 are provided with positioning portions 67 formed of protrusions. The positioning portion 67 is engaged with a positioning hole 67a formed in the bottom plate 11a of the headbox 11. As shown in FIG. The rotating member 17d can be attached to a predetermined position of the head box 11 regardless of the top or bottom by simply changing the mounting position of the roller 62. As shown in FIG.

The end of the stopper 19 on the rotating member 17d side serves as an insertion end 19a for the lifting cords 15a and 15b, and the end on the guide member 20 side, which will be described next, serves as a delivery end 19b.
[Configuration of guide member 20]
As shown in FIGS. 4 and 16, a guide member 20 is arranged on the support member 17b side of the stopper 19 to guide the first lifting cord 15a from the support member 17b along the rear wall 11c. The guide member 20 is a member having the same configuration as the turning member 17d. The guide member 20 is mounted upside down and adjacent to and adjacent to the delivery end 19b of the stopper 19 without changing the mounting positions of the turning member 17d and the roller 62. As shown in FIG. That is, the turning member 17d is attached to the head box with the upper support portion 63 facing downward and the lower supporting portion 64 facing upward. Moreover, when the position of the roller 62 with respect to the rotating member 17d is changed, the guide member 20 can be used as it is. A roller 62 as a guide support is positioned on the rear wall 11c side. As a result, the first lifting cord 15a from the support member 17b is guided along the rear wall 11c by the rollers 62 of the guide member 20, rotated by the rollers 62 of the rotating member 17d, and inserted into the insertion end 19a of the stopper 19. As shown in FIG. That is, the second lifting cord 15b is avoided from the stopper 19 toward the rear wall 11c between the guide member 20 and the rotating member 17d. Of course, the rollers 62 may be arranged in each of the two pairs of shaft holes 63a and 64a so that the turning member 17d can be used as the guide member 20 in any direction, up, down, left, or right.

[Configuration of support members 17a and 17b]
As shown in FIGS. 17 and 18, the support members 17a and 17b have two side walls 71 that face each other in the longitudinal direction of the headbox 11. As shown in FIGS. The opposing side wall 71 has a bearing portion 72 formed of a recess for rotatably supporting the drum 52 to which the two warp threads 13a of the ladder cord 13 are fixed. The shaft portion 52 b is rotatably supported by the bearing portion 72 . A tip portion of the side wall 71 is provided with a notch portion 73 . The notch 73 is engaged with an engaging protrusion 57a formed at the tip of the front wall 11b and the rear wall 11c.

Note that the drum 52 used here has the same configuration as the drum 52 used for the support member 51 described above, so details thereof are omitted.
Further, the bottom plate 74 is formed with an elongated through hole 75 corresponding to the through hole 55 and having a long axis in the front-rear direction. A positioning protrusion 76 is formed around the through hole 75 on the surface of the bottom plate 74 facing the bottom plate 11 a of the bottom rail 14 . The positioning protrusion 76 has, for example, an annular shape so as to surround the through hole 75 . The positioning protrusion 76 is fitted into an insertion hole 77 having the same shape as the through hole 75 formed in the bottom plate 11a. Further, a bulging portion 78 is formed on a side wall 79 facing the front wall 11b and the rear wall 11c. A support roller 80 is arranged along the long axis of the through hole 75 at a position along the through hole 75 . The support roller 80 supports the suspended first lifting cord 15 a and guides it toward the stopper 19 . The shaft of support roller 80 is supported near bulge 78 . The warp threads 13 a of the ladder cord 13 are also inserted through the through holes 75 and the through holes 77 .

Next, the operation of the horizontal blind 10 configured as described above will be described. As shown in FIG. 19 , the horizontal blind 10 is attached to a window frame 100 to which it is attached, and blocks solar radiation in a translucent region 101 within the window frame 100 . Specifically, the horizontal blind 10 is installed to cover or hide the window frame 100 . In this case, it is attached to the ceiling in a curtain box 103 arranged above the window frame 100 inside the room. In this case, the horizontal width W1 of the horizontal blind 10 is set longer than the interval W2 between the vertical frames 100a of the window frame 100. As shown in FIG. Regarding the length H1 from the lower end of the head box 11 in the height direction to the bottom rail 14, the upper and lower horizontal frames 100b, 100b and 100b are arranged so that the bottom rail 14 is positioned below the lower horizontal frame 100b of the window frame 100. It is set longer than the interval H2 of 100b. Thereby, the horizontal blind 10 covers the entire translucent area 101 of the window frame 100 . Note that the lower horizontal frame 100b and the bottom rail 14 may be positioned at the same height.

In this case, the first lifting cord 15a is positioned along the vertical frames 100a, 100a of the window frame 100 or outside the vertical frames 100a, 100a when the bottom rail 14 is lowered. Therefore, in the fully closed state of the slats 12, leakage of light from the through holes 22 becomes inconspicuous, and light shielding performance can be enhanced. Even if the through hole 22 is located inside the window frame 100 due to the size of the window frame 100, the through hole 22 is close to the vertical frames 100a, 100a. , the shadows of the vertical frames 100a, 100a can reduce the amount of light that penetrates into the room, making it inconspicuous.

When the slats 12 and the bottom rail 14 are lifted, pulling the equalizer 18 downward lifts the bottom rail 14 such that the plurality of slats 12 are sequentially stacked on the bottom rail 14 from a position closer to the bottom rail 14. - 特許庁. When the slats 12 and the bottom rails 14 are to be lowered, the equalizer 18 is slightly loosened, and the bottom rails 14 are lowered. .

As shown in FIG. 20, second lifting cords 15b of the same strength extend on both side edges in the front-rear direction of the bottom rail 14, which are inside and outside the room with respect to the slats 12. , the balance in the lateral direction of the bottom rail 14 is improved. As a result, it is possible to prevent the bottom rail 14 from tilting either toward the inside of the room or toward the outside of the room. As a result, when the bottom rail 14 moves up and down, the plurality of slats 12 supported by the ladder cords 13 piled up on the bottom rail 14 are also prevented from swelling and piling up on the bottom rail 14.例文帳に追加be able to.

Further, each slat 12 is rotated by rotating a shaft inserted through the drum 52 provided in the support members 17a, 17b, 51 by an operating portion.
The front side guide portion 33 and the rear side guide portion 34 protrude from the front wall 11b and the rear wall 11c. Therefore, from the front side guide portion 33, the first elevating portion 15y hangs down substantially straight, and from the rear face side guiding portion 34, the second elevating portion 15z hangs down almost straight. Therefore, the friction between the front edge portion of the uppermost slat and the first lifting portion 15y can be reduced. Also, the friction between the front edge portion of the uppermost slat and the second elevating portion 15z can be reduced. This can prevent the second lifting cord 15b from being cut due to friction.

The horizontal blind 10 as described above can obtain the following effects.
(1) Inside the head box 11, from the right end, a support member 17b for the first lifting cord 15a, an operation guide member 17e, a cord guide member 17c for the second lifting cord 15b, and a support member 17a for the first lifting cord 15a. are aligned longitudinally. The equalizer 18 and the tilt pole 18a, which are the operating parts, are arranged between the support member 17b and the stopper 19, and are connected to the first lifting cord 15a and the second lifting cord 15b led out from the operation guide member 17e. The support members 17a and 17b are arranged as close to both ends of the head box 11 as possible. Therefore, in the fully closed state of the slats 12, leakage of light from the through holes 22 becomes inconspicuous. Even if the through-hole 22 is positioned inside the window frame 100, the through-hole 22 is positioned close to the vertical frames 100a, 100a. It is possible to reduce the amount of light emitted and make it inconspicuous.

(2) Between the support member 17b and the support member 17a, the guide member 20 is provided to guide the first lifting cord 15a extending from the support member 17b to the rotating member 17d. It is possible to reliably guide the turning member 17d while keeping the same.

(3) The turning member 17d is integrally attached to the end surface of the stopper 19 on the insertion end 19a side by engaging the pair of attachment pieces 66 and the pair of connection pieces 66a. Therefore, the turning member 17d can be accurately positioned with respect to the stopper 19. As shown in FIG.

(4) Since the guide member 20 is provided with the roller 62, the second lifting cord 15b can be smoothly guided.
(5) Since the turning member 17d and the guide member 20 are provided with the positioning portion 67, they can be accurately positioned with respect to the head box 11. FIG.

(6) The same part can be used for the turning member 17d and the guide member 20.
In addition, the horizontal blind 10 as described above can be modified appropriately as follows.

[Modified Example of Cord Guide Member 17c (Second Guide Part)]
- As shown in FIG. 21, in the cord guide member 17c, the guide portion provided at the second entrance 41b of the passage 41 may be a guide surface 43a instead of the guide roller 43. As shown in FIG. As a result, the guide roller 43 becomes unnecessary, and the number of parts can be reduced.

- Moreover, the code|cord guide member 17c is good also as a structure which omits the guide part of the 2nd entrance/exit 41b.
- You may omit the pulley 39 which is a guidance support part. In this case, instead of the pulley, a guide portion composed of an integrally formed guide pin or the like is provided, and the guide surface formed on the outer peripheral surface of the guide portion guides the second lifting cord 15b. In such a case, since the pulley 39 is omitted, the number of parts can be reduced.

- The front side guide part 33 and the rear side guide part 34 do not need to protrude from the front wall 11b and the rear wall 11c.
The front side contact portion 31 and the front side guide portion 33, and the rear side contact portion 32 and the rear side guide portion 34 may be configured as separate parts and joined with an adhesive or the like. .

The second lifting cord 15b may be configured to be led out from the outer surfaces of the front wall 11b and the rear wall 11c. It may be recessed, and the second lifting cord 15b may be led out from the front side guide portion 33 and the rear side guide portion 34 as described above.

[Modified example of connecting part 37]
- The front side guide portion 33 and the rear side guide portion 34 may not be connected. In this case, after arranging the front side guide portion 33 on the inner surface of the front wall 11b and arranging the rear side guide portion 34 on the inner surface of the rear wall 11c, the front side guide portion 33 and the rear side guide portion 33 are attached to each other by the pin member as described above. The front side guide part 33 is pushed against the front wall 11b, and the rear side guide part 34 is pushed against the rear wall 11c. Further, the front-side guide portion 33 and the rear-side guide portion 34 may be biased by an elastic body such as a coil spring or rubber in a direction to separate them from each other.

- As shown in FIG. 22, the connecting portion of the cord guide member 17c may not be elastically displaceable. For example, a link mechanism may be provided as the connecting portion 37 between the front side guide portion 33 and the rear side guide portion 34 . For example, this link mechanism includes a first arm 37a and a second arm 37b that are arranged to intersect with each other, the intersections of which are rotatably supported by pins or the like, and has an X shape as a whole. there is Two ends of the first arm 37a and the second arm 37b positioned at the front contact portion 31 are rotatably supported in a guide hole 37c formed by an elongated hole in the front contact portion 31. The two ends located in the rear side contact portion 32 are rotatably supported in the guide holes 37c formed by elongated holes in the rear side contact portion 32. As shown in FIG. As a result, the front side contact portion 31 and the rear side contact portion 32 are connected, and when the head box 11 is inserted, the front side contact portion 31 and the rear side contact portion 32 are separated by the second distance. It is inserted from the opening 11d of the head box 11 in a state narrowed to 30b. Of course, the gap between the outer surface of the front side guide portion 33 and the outer surface of the rear side guide portion 34 may be narrower than the first gap 30a. After being inserted into the head box 11, the front contact portion 31 and the rear contact portion 32 are manually brought into contact with the front wall 11b and the rear wall 11c. After that, a support member 51 , a tension pin, an elastic member, or another restricting member is arranged between the front side contact portion 31 and the rear side contact portion 32 . As a result, the displacement of the front guide portion 33 away from the front wall 11b is restricted, and the displacement of the rear guide portion 34 away from the rear wall 11c is restricted.

The link mechanism is not limited to the configuration shown in FIG. 22, and may be, for example, a pantograph-like mechanism whose overall shape shrinks in a rhombus or parallelogram.
- The connecting portion 37 may be configured such that the front side contact portion 31 can be displaced in a direction toward or away from the front wall 11b, and the rear side contact portion 32 can be configured so as not to be displaced. Conversely, the connecting portion 37 may be configured to be displaceable in the direction in which the rear contact portion 32 moves toward and away from the rear wall 11c, while the front contact portion 31 is not displaced. That is, the distance between the front side contact portion 31 and the rear side contact portion 32 should be changed relatively.

[Modified example of the cover]
- The cover 46 may have a configuration in which the guide wall 47 is omitted.
- It is good also as a structure which omits the cover 46. FIG.

[Modified example of holder]
- The holder 16 may omit the second groove 16d with which the intermediate portion 15x of the second lifting cord 15b is engaged.

- The cover 46 may be attached to at least one of the front side guide portion 33 and the rear side guide portion 34 . When attaching the second lifting cord 15b to the horizontal blind 10, first, one end of the second lifting cord 15b is attached to either the front side or the rear side of the cord guide member 17c arranged in the head box 11. It is inserted from the second entrance 41b of one of the passages 41 . Next, one end of the second lifting cord 15 b is passed through the pulley 39 and exposed outside the head box 11 from either the front side guide portion 33 or the rear side guide portion 34 . One end of the second lifting cord 15b is suspended along the slat 12 and turned around the bottom rail 14. As shown in FIG. After that, one end of the second lifting cord 15b is inserted into the other of the front-side guide portion 33 or the rear-side guide portion 34 . At this time, the leading end of the second lift cord 15b is guided by the guide wall 47 of the cover 46, and is guided in the direction of the first doorway 41a of the passage 41 by bending the course by 90 degrees.

The guide wall 47 of the cover 46 functions when one end of the second lifting cord 15b is inserted from the side of the pulley 39. As shown in FIG. When the second lifting cord 15b is routed as described above, one end of the second lifting cord 15b is inserted from the side of the pulley 39 into either the front guide portion 33 or the rear guide portion 34. is one. Therefore, the cover 46 may be arranged only at the guide portion into which one end of the second lifting cord 15b is inserted from the side of the pulley 39. As shown in FIG.

[Modified example of support member 51]
The support member 51 as a restricting member for restricting the displacement of the front-side guide portion 33 and the rear-side guide portion 34 in the direction toward each other does not have the function of suspending and supporting the ladder cord 13. good too. In this case, the ladder cord 13 is suspended and supported by another member.

- It is not necessary to arrange the support member 51 between the front side guide portion 33 and the rear side guide portion 34 . In this case, as a restricting member for restricting displacement of the front-side guide portion 33 and the rear-side guide portion 34 in a direction toward each other, a pin member such as a tension pin is attached to the front-side guide portion 33 and the rear-side guide portion 34 . 34 may be used.

[Modified example of turning member 17d (turning portion) and guide member 20 (third guiding portion)]
- When the turning member 17d and the guide member 20 are used in common, if the turning member 17d is turned upside down, the position of the roller 62 does not need to be changed. As shown in FIG. 23, only one pair of shaft holes 63a and 64a may be provided. As a result, the rotating member 17d and the guide member 20 can share the fixtures, and the configuration can be simplified by not reducing the two pairs of shaft holes 63a and 64a to one pair.

In the rotating member 17d and the guide member 20, a guide wall may be erected instead of the roller 62, and the second lifting cord 15b may be guided by a guide surface formed on the side surface of the guide wall. As a result, the number of parts of the turning member 17d and the guide member 20 can be reduced.

The guide member 20 may also be attached to the end surface of the stopper 19 on the delivery end 19b side by engaging the pair of attachment pieces 66 and the pair of connection pieces 66a like the turning member 17d.

- The turning member 17 d and the guide member 20 may not be provided with the positioning portion 67 . Alternatively, only one of the rotating member 17d and the guide member 20 may be provided.
- The turning member 17d and the guide member 20 may be components having completely different shapes.

- The first lifting cord 15a may be laid along the front wall 11b instead of the rear wall 11c between the guide member 20 and the rotating member 17d.
[Modified Example of Elevating Member]
- The 2nd raising/lowering cord 15b may be comprised by two, the front side and the rear side. In this case, one end of each lifting cord 15 b is fixed to the bottom rail 14 .

- The first lifting cord 15a may have the same configuration as the second lifting cord 15b. That is, instead of being inserted through the through holes 22 of the slats 12, the slats 12 may be configured to extend along the elevation direction along the front edge portion inside the room and the rear edge portion outside the room. In this case, since the through holes 22 are not required, the light shielding property of the horizontal blind 10 can be enhanced.

- The front edge and the rear edge of the slat 12 may be provided with cutout recesses with which the second lifting cords 15b are engaged.
- The second lifting cord 15b may be suspended at a plurality of locations in the longitudinal direction between the first lifting cords 15a of the head box 11 . Further, the second lifting cord 15b may not be arranged at the longitudinal central portion of the head box 11, and may be arranged at an intermediate position shifted to one side from the longitudinal central portion.

- The second lifting cord 15b may be arranged only on the front side or may be arranged only on the rear side. In this case, the lifting cord is inserted through one of the front side guide portion 33 and the rear side guide portion 34 .

- The 1st raising/lowering cord 15a and the 2nd raising/lowering cord may be a tape-shaped member instead of a string-shaped member.
・As shown in FIG. 24, the first lifting portion 15y and the second lifting portion 15z of the second lifting cord 15b are pulled out from the front wall 11b and the rear wall 11c. 55 may be pulled out. In this case, the insertion hole 55 of the bottom plate 11a is formed in an elongated shape with a long axis extending in the front-rear direction, and the first lifting section 15y and the second lifting section 15z of the second lifting cord 15b are pulled out from the hole.

In this case, the cord guide member 17c is divided into two with respect to the center line along the longitudinal direction of the head box 11, the front contact portion 91a positioned along the inner surface of the front wall 11b and the inner surface of the rear wall 11c. and a rear side contact portion 91b located along the . The front side contact portion 91 a and the rear side contact portion 91 b are connected by the connecting portion 37 . The connecting portion 37 includes a connecting arm 92 provided on the front side contact portion 91a and extending in the front-rear direction of the head box 11, and a connecting protrusion 93 disposed on the rear side contact portion 91b. The connecting arm 92 has an elongated connecting hole 92a extending in the front-rear direction, and the connecting protrusion 93 is engaged with the connecting hole 92a. As a result, the movement range of the front side contact portion 91a and the rear side contact portion 91b is restricted, and the front side contact portion 91a and the rear side contact portion 91b can be handled integrally.

Semi-holes 94a and 94b forming a through-hole 94 corresponding to the insertion hole 55 are provided at the bottoms of the front-side contact portion 91a and the rear-side contact portion 91b. Protrusions 95a and 95b forming positioning protrusions 95 are formed around the semi-holes 94a and 94b at the bottoms of the front contact portion 91a and the rear contact portion 91b. The positioning protrusion 95 is fitted into an insertion hole 55 having the same shape as the through hole 75 formed in the bottom plate 11a. The positioning protrusion 95 is fitted into the insertion hole 55 so that the front side contact portion 91a and the rear side contact portion 91b that are close to each other are not separated.

A support roller 96 is arranged along the long axis of the through-hole 94 at the bottom of each of the front-side contact portion 91a and the rear-side contact portion 91b. The support roller 96 functions as a front-side guide portion and a rear-side guide portion, supports the suspended first lifting cord 15a, and guides it in the direction of the stopper 19. As shown in FIG. Each of the front side contact portion 91a and the rear side contact portion 91b is provided with a rotation support portion 96a that pivotally supports the support roller 96. As shown in FIG. Specifically, the support roller 96 arranged on the front side contact portion 91a supports the first lifting portion 15y of the second lifting cord 15b, and the support roller 96 arranged on the rear side contact portion 91b supports the first lifting portion 15y of the second lifting cord 15b. 2 Supports the second lifting section 15z of the lifting cord 15b.

Further, the drum 52 to which the ladder cord 13 is fixed is attached to the side wall portions 97a and 97b of the front side contact portion 91a and the rear side contact portion 91b, which are positioned perpendicular to the longitudinal direction of the head box 11. It has a bearing 98 for rotatable support. The bearing portion 98 is configured by abutting a concave portion 98a provided in the side wall portion 97a and a concave portion 98b provided in the side wall portion 97b.

When it is inserted into the head box 11, it is inserted through the opening 11d of the head box 11 while the front side contact portion 91a and the rear side contact portion 91b are narrowed to be narrower than the gap between the front wall 11b and the rear wall 11c. be done. After being inserted into the head box 11, the front side contact portion 91a and the rear side contact portion 91b are manually brought into contact with the front wall 11b and the rear wall 11c. At this time, the positioning protrusion 95 is fitted into the insertion hole 55 so that the front side contact portion 91a and the rear side contact portion 91b that are close to each other are not separated. The warp threads 13 a of the ladder cord 13 are also inserted through the through holes 94 and the through holes 55 .

After that, a regulating member such as a tension pin or an elastic body may be arranged between the front side contact portion 91a and the rear side contact portion 91b. As a result, the displacement of the front contact portion 91a away from the front wall 11b is restricted, and the displacement of the rear contact portion 91b away from the rear wall 11c is restricted.

[Modification of head box 11]
- As shown in FIGS. 25 and 26, cap members 86 are attached to the ends of the head box 11 to close the open ends of the ends. The cap member 86 includes a closing surface 86a that constitutes the side surface of the head box 11 and has a size that closes the open end of the head box 11, and a peripheral wall 86b erected around the closing surface 86a. . The inner surface of the blocking surface 86a includes a support wall 87 spaced apart from and parallel to the blocking surface 86a. The support wall 87 has a bearing portion 88 formed of a recess for rotatably supporting the drum 52 to which the two warp threads 13a of the ladder cord 13 are fixed. A shaft portion 52 b provided on one side surface of the drum 52 is supported by the bearing portion 88 . A support projection 88a is also provided on the inner surface of the closing surface 86a, and is engaged with a shaft hole 88b formed on the other side surface opposite to the one side surface of the shaft portion 52b.

Note that the drum 52 used here has the same configuration as the drum 52 used for the support member 51 described above, so details thereof are omitted.
A through-hole 89 is formed in the bottom of the space between the closing surface 86a and the support wall 87, the long axis extending in the front-rear direction. The through hole 89 faces the uppermost slat 12 . A support roller 80 as a first guide portion is arranged in the through hole 89 along the long axis. The support roller 80 supports the suspended first lifting cord 15 a and guides it toward the stopper 19 . In this way, the two warp threads 13a of the ladder cord 13 and the first lifting cord 15a hang down from the through hole 94. As shown in FIG.

When the cap member 86 as described above is used, the drum 52 supporting the ladder cord 13 and the support roller 80 supporting the first lifting cord 15a are arranged on the cap member 86 . Therefore, the positions of the first lifting cords 15a positioned at both ends of the slat 12 can be brought close to the ends of the slat 12 as much as possible. Moreover, when this cap member 86 is used, the support members 17a and 17b described above become unnecessary. Therefore, the number of parts of the horizontal blind 10 can be reduced.

The cap members 86 as described above may be arranged at both ends of the head box 11 in the longitudinal direction.
The support protrusion 88a that rotatably supports the drum 52 that supports the ladder cord 13 may be provided on the drum 52 side, and the shaft hole 88b may be provided on the closed surface 86a.

・In FIG. 4, inside the head box 11, from the right end, a support member 17b for the first lifting cord 15a, an operation guide member 17e as a rotation control unit and an operation unit, a guide member 20, and a stopper 19 as a lift control unit , the turning member 17d, the cord guide member 17c of the second lifting cord 15b, and the support member 17a of the first lifting cord 15a are arranged in the longitudinal direction. The first lifting cord 15a extending from the support member 17b is guided along the rear wall 11c by the guide member 20 to avoid the stopper 19 and is guided to the turning member 17d and then introduced to the stopper 19. be.

In this respect, the operation guide member 17e is provided with the first lifting cord 15a extending from the support member 17b toward the turning member 17d so as to avoid the stopper 19 and extend longitudinally at the center of the head box 11 in the front-rear direction or the vertical direction so as to avoid the stopper 19. A avoidance guide portion may be provided to guide the center line P so as to be biased to one side. The operation guide member 17e functions as a rotation control section that controls the rotation of the tilt shaft 122 as a control shaft member, and also functions as a lead-out section that guides the first lift cord 15a and the second lift cord 15b to the outside of the head box 11. do. The tilt pole 18a is connected to the tilt pole 18a, and it is also a part of the operation section that controls the rotation of the tilt shaft 122 via the gear box 121a of the tilt gear.

For example, as shown in FIGS. 27(a) and 27(b), the first lifting cord 15a extending from the support member 17b is attached to the operation guide member 17e along the rear wall 11c while being shifted from the center line P toward the rear wall 11c. A avoidance guide portion 121 for avoiding the stopper 19 may be provided. The avoidance guide portion 121 is provided at a position near the rear wall 11c of the operation guide member 17e and avoiding the gear box 121a of the tilt gear. Here, as an example, the avoidance guide portion 121 is located closer to the bottom plate 11a than the tilt shaft 122 rotated by the tilt gear. The first lifting cord 15a extending from the support member 17b guided by the avoidance guide portion 121 is guided by the avoidance guide portion 121 at the position of the operation guide member 17e, so that it runs along the rear wall 11c. Then, the first lifting cord 15a is guided to the rotating member 17d and then introduced to the stopper 19. As shown in FIG. Therefore, the head box 11 does not require the guide member 20, and the number of parts can be reduced.

Also, as shown in FIGS. 28A and 28B, the avoidance guide portion 121 may be a guide member 121x separate from the operation guide member 17e. The guide member 121x is arranged between the support member 17b and the operation guide member 17e so as to penetrate into the headbox 11 from the side of the bottom plate 11a of the headbox 11 . Inside the head box 11, the guide member 121x includes a guide roller, a guide pin, and a pulley. Guidance along 11c. That is, the first lifting cord 15a is passed between the operation guide member 17e and the rear wall 11c and between the stopper 19 and the rear wall 11c. After that, the first lifting cord 15a is guided to the rotating member 17d and then introduced to the stopper 19. As shown in FIG. With such a configuration, the stopper 19 can also be avoided. Furthermore, when the guide member 121x is used, the existing operation guide member 17e can be used by using the guide member 121x. Note that the guide member 121x may be attached from the rear wall 11c side.

Also, the guide member 121x can be provided integrally with the support member 17b. In this case, the support member 17b is provided with the avoidance guide portion 121 described above.
As shown in FIGS. 29(a) and 29(b), the first lifting cord 15a extending from the support member 17b is attached to the operation guide member 17e so as to be shifted from the center line P toward the front wall 11b and along the front wall 11b. A avoidance guide portion 121 for avoiding the stopper 19 may be provided. The avoidance guide portion 121 is provided at a position near the front wall 11b of the operation guide member 17e and avoiding the gear box 121a of the tilt gear. Here, as an example, the avoidance guide portion 121 is provided above the gearbox 121a near the front wall 11b. The first lifting cord 15a extending from the support member 17b is guided along the front wall 11b by being guided by the avoidance guide portion 121 at the position of the operation guide member 17e. Then, the first lifting cord 15a is guided to the rotating member 17d and then introduced to the stopper 19. As shown in FIG. Therefore, in this example as well, the guide member 20 is not required from the head box 11, and the number of parts can be reduced.

Further, as shown in FIGS. 30(a) and 30(b), the first lifting cord 15a extending from the support member 17b is attached to the operation guide member 17e by shifting it upward from the center line P and extending above the operation guide member 17e. An avoidance guide portion 121 for avoiding the stopper 19 may be provided. The avoidance guide portion 121 is provided above the operation guide member 17e at a position avoiding the gear box 121a of the tilt gear. As an example, the first lifting cord 15a extending from the upper portion of the operation guide member 17e toward the stopper 19 is moved along the rear wall 11c by a guide groove 19x1 formed at a position near the rear wall 11c of the case 19x of the stopper 19. Furthermore, it is guided to gradually descend from the upper portion of the head box 11 and guided to the turning member 17d. Then, the first lifting cord 15a is turned by the turning member 17d and introduced into the stopper 19. As shown in FIG. The first lifting cord 15a is guided along the front wall 11b by a guide groove formed near the front wall 11b so as to gradually descend from the upper side of the head box 11, and is guided by the turning member 17d. You may be guided. With such an example as well, the guide member 20 is not required from the head box 11, and the number of parts can be reduced.

Also, as shown in FIGS. 31(a) and 31(b), the avoidance guide portion 121 may be a guide member 121x separate from the operation guide member 17e. The guide member 121x is arranged between the support member 17b and the operation guide member 17e so as to penetrate into the headbox 11 from the rear wall 11c side of the headbox 11 . Inside the head box 11, the guide member 121x guides the first lifting cord 15a extending from the support member 17b so as to be shifted upward from the center line P and extended above the operation guide member 17e. After that, the first lifting cord 15a is gradually moved along the rear wall 11c from the upper part of the head box 11 by a guide groove 19x1 formed near the rear wall 11c of the case 19x of the stopper 19, for example. It is guided down and led to the turning member 17d. After that, the first lifting cord 15 a is introduced into the stopper 19 . With such a configuration, the stopper 19 can also be avoided. Furthermore, when the guide member 121x is used, the existing operation guide member 17e can be used by using the guide member 121x.

Note that the guide member 121x may be attached from the bottom plate 11a side.
Also, the guide member 121x can be provided integrally with the support member 17b. In this case, the support member 17b is provided with the avoidance guide portion 121 described above.

Further, as shown in FIGS. 32(a) and 32(b), the first lifting cord 15a extending from the support member 17b is attached to the operation guide member 17e by shifting it downward from the center line P so that the operation guide member 17e is attached to the lower side of the operation guide member 17e. An avoidance guide portion 121 for avoiding the stopper 19 may be provided so as to extend in the direction of the stopper 19 . The avoidance guide portion 121 is a concave groove provided at a position below the operation guide member 17e and avoiding the gear box 121a of the tilt gear. The first lifting cord 15a extending from the lower side of the operation guide member 17e toward the stopper 19 passes under the stopper 19 and is guided to the rotating member 17d. A guide groove for the first lifting cord 15a is provided in the case 19x of the stopper 19, and the first lifting cord 15a is guided by the guide groove in the lower portion of the stopper 19 toward the rotating member 17d. Then, the first lifting cord 15a is turned by the turning member 17d and introduced into the stopper 19. As shown in FIG. With such an example as well, the guide member 20 is not required from the head box 11, and the number of parts can be reduced.

Further, as shown in FIGS. 33(a) and 33(b), the first lifting cord 15a extending from the support member 17b is attached to the operation guide member 17e so as to pass through the operation guide member 17e so as to extend from the center line P. An avoidance guide portion 121 for avoiding the stopper 19 may be provided by shifting to the rear wall 11c side. The avoidance guide portion 121 is provided with a positioning piece 121b for positioning in the head box 11. As shown in FIG. The positioning piece 121b here is, for example, a plate portion that positions the bottom plate 11a and the rear wall 11c. The positioning piece 121b is provided with an avoidance guide portion 121 formed of a through hole through which the first lifting cord 15a extending from the support member 17b is inserted. The first lifting cord 15a inserted through the avoidance guide portion 121 is guided to the turning member 17d along the rear wall 11c. Then, the first lifting cord 15a is turned by the turning member 17d and introduced into the stopper 19. As shown in FIG. In addition, the first lifting cord 15a may be guided to the turning member 17d along the front wall 11b. With such an example as well, the guide member 20 is not required from the head box 11, and the number of parts can be reduced.

・In the examples of FIGS. It is good also as the structure which does not carry out. As shown in FIG. 34, the first lifting cord 15a extending from the support member 17b is present on the right side of the operation guide member 17e, and the left end support of the head box 11 is present on the left side of the operation guide member 17e. There is one first lifting cord 15a extending from member 17a and a second lifting cord 15b extending from cord guide member 17c. Regardless of which of the lifting cords 15a and 15b, the stopper 19 needs to control the lifting and lowering before entering the operation guide member 17e.

Therefore, a first stopper 19y and a second stopper 19z are arranged on both sides of the operation guide member 17e. The first stopper 19y is an elevation control section arranged on the left side of the operation guide member 17e, and includes one first elevation cord 15a extending from the support member 17a at the left end of the head box 11 and two cords extending from the cord guide member 17c. The second lifting cord 15b of the book is inserted and delivered to the operation guide member 17e. On the other hand, the second stopper 19z is an elevation control section arranged on the right side of the operation guide member 17e, and is operated by the first elevation cord 15a extending from the support member 17b at the right end of the head box 11 and the cord guide member 17c. The extending second lifting cord 15b is inserted and delivered to the operation guide member 17e.

With such a configuration, there is no need to use a part of the operation guide member 17e to provide guidance for avoiding the stopper, and the configuration of the operation guide member 17e can be simplified. Further, by adding only one new stopper, the guide member 20 and the rotating member 17d become unnecessary, and the number of parts can be reduced as a whole. Further, by eliminating the guide member 20 and the turning member 17d, the frictional resistance to the first lifting cord 15a can be reduced.

・As shown in FIG. 4, the equalizer 18 and the tilt pole 18a, which are the operation portions, are arranged between the support member 17b and the stopper 19, and the first lifting cord 15a and the second lifting cord 15a led out from the operation guide member 17e. It is connected to the lifting cord 15b. The support members 17a and 17b corresponding to the first lifting cord 15a are arranged as close to both ends of the head box 11 as possible. Accordingly, as shown in FIG. 3, the through holes 22 of the slats 12 are arranged as close to both ends of the slats 12 as possible.

Moreover, the ladder cord 13 is arranged such that the pair of warp yarns 13a also extends along the first lifting cord 15a. That is, the warp yarns 13a of the ladder cords 13 along the first lifting cords 15a are also extended to positions close to both ends of the slats 12 as much as possible. Therefore, if the slat 12 shifts laterally, the weft thread 13 b of the ladder cord 13 may come off the end of the slat 12 . In particular, when the slats are pulled up and piled up on the bottom rail 14, the warp yarns 13a are greatly loosened and are likely to come off the ends of the slats 12. As shown in FIG. Therefore, the ladder cords 13 are prevented from coming off the ends of the slats 12 as follows.

Specifically, as shown in FIG. 35(a), the ladder cord 13 includes a pair of warp threads 13a and a weft thread 13b connecting the pair of warp threads 13a. They are located in the same position as the cord 15a or closer to the middle part of the headbox than the first lifting cord 15a and are arranged side by side. In this case, between the head box 11 and the bottom rail 14, the weft thread 13b positioned closer to the intermediate portion of the slat 12 than the first lifting cord 15a is inserted through the through-hole 22 at least at one location. It is positioned closer to the end of the slat 12 than the cord 15a. In other words, directly below the head box 11 and directly above the bottom rail 14, the first lifting cord 15a inserted through the through hole 22 is located closer to the end of the slat 12 than the weft thread 13b.

That is, when the hanging position of the first lifting cord 15a (distance from the end of the slat 12) is (A) and the hanging position of the warp thread 13a (distance from the end of the slat 12) is (B),
(A)≤(B)
when in the relationship of
The weft thread 13b is positioned closer to the end of the slat 12 than the first lifting cord 15a inserted through the through hole 22 at least at one point. The weft thread 13b of the ladder cord 13 is positioned closer to the intermediate part than the first lifting cord 15a, so that even when the weft thread 13b tries to come off from the end of the slat 12, it hits the first lifting cord 15a and can be prevented from coming off. In addition, by positioning the weft thread 13b closer to the end of the slat 12 than the first lifting cord 15a, it is possible to prevent the ladder cord 13 from moving too far toward the intermediate portion of the slat 12 . As a result, even when the slats 12 are raised, it is possible to prevent the loose ladder cords 13 from becoming unattractive.

More preferably, the weft yarn 13b is arranged in the middle stage (for example, one or more slat stages positioned in the vertical center of the slat 12) between the headbox 11 and the bottom rail 14. 1 located on the end side of the slat 12 from the lifting cord 15a. In other words, it is preferable that the weft thread 13b be located closer to the end of the slat 12 than the first lifting cord 15a is for one stage of the slat 12 .

If the horizontal blind is long in the vertical direction, the weft thread 13b may be positioned closer to the end of the slat 12 than the first lifting cord 15a in a plurality of places. In this case, a plurality of locations where the weft thread 13b is located closer to the end of the slat 12 than the first lifting cord 15a may be provided. Also in this case, it is preferable that the slat step in the central portion in the vertical direction is provided with a portion where the weft thread 13b is positioned closer to the end portion side of the slat 12 than the first lifting cord 15a. In addition, it is preferable that the weft thread 13b be located closer to the end of the slat 12 than the first lifting cord 15a is for one stage of the slat 12. As shown in FIG.

The weft thread 13b is positioned closer to the end of the slat 12 than the first lifting cord 15a for one step (D) or more of the slat 12, and (A)/(D) (D are adjacent to each other). slat 12 spacing).

Further, as shown in FIG. 35(b), the relationship between the hanging position of the warp yarn 13a of the ladder cord 13 from the head box 11 and the hanging position of the first lifting cord 15a from the head box 11 is A>B. When there is: That is, directly above the bottom rail 14 and directly below the head box 11, the weft thread 13b is located closer to the end of the slat 12 than the first lifting cord 15a. In such a state, it is preferable to position the weft thread 13b positioned closer to the end of the slat 12 than the first lifting cord 15a is positioned closer to the middle part of the headbox than the first lifting cord 15a. Specifically, the distance (C) from the head box 11 where the weft thread 13b is switched from the end side of the slat 12 to the intermediate side of the head box 11 from the first lifting cord 15a through which the weft thread 13b is inserted through the through hole 22 is as follows. become that way. That is, the distance (C) is the projection dimension (A (=first lifting cord 15a hanging position))) is set shorter (C<A).

According to the above configuration, it is possible to reduce the number of places where the ladder cord 13 and the first lifting cord 15a are woven while suppressing the weft 13b from coming off the end of the slat 12, thereby improving production efficiency. can be improved. Further, since the weft thread 13b is positioned closer to the intermediate portion than the first lifting cord 15a, even if the weft thread 13b tries to come off the end of the slat 12, it can be prevented from hitting the first lifting cord 15a and coming off. Furthermore, by positioning the weft thread 13b closer to the end of the slat 12 than the first lifting cord 15a, it is possible to prevent the ladder cord 13 from moving too far toward the intermediate portion of the slat 12 . As a result, even when the slats 12 are raised, it is possible to prevent the loose ladder cords 13 from becoming unattractive.

[Modification of slat 12]
The slat 12 has the first lifting cord 15 a inserted through the through hole 22 . Therefore, as an example, when some of the slats 12 become soiled and need to be replaced, all the slats 12 need to be removed from the first lifting cord 15a. As shown in FIG. 36, the slat 12 is provided with a communicating portion 116 that communicates between the through hole 22 and the outer peripheral edge. As an example, the communicating portion 116 is configured by a notch cut from the outer peripheral portion to the through hole 22 by a cutting means such as a cutter or a punch. The communicating portion 116 has a narrower width than the diameter of the first lifting cord 15a, and is designed to prevent the first lifting cord 15a from coming out of the through hole 22 through the communicating portion 116 during normal use. It is configured. When replacing the slat 12, the communication part 116 is widened and the first lifting cord 15a can be removed from the through hole 22 by alternately flexing both sides of the cuts forming the communication part 116 in the vertical direction.

As described above, the through-holes 22 of the slats 12 are arranged as close to both ends of the slats 12 as possible. Therefore, even if the communication portion 116 is cut from the side edge portion 12c of the slat 12 toward the through hole 22, the reduction in strength of the slat 12 as a whole can be suppressed. Since the position from the side edge 12c toward the through hole 22 is both ends of the horizontal blind, it is difficult to see from the inside of the room.

As shown in FIG. 37 , the communicating portion 116 can also be provided so as to provide a notch in the communicating portion 116 from the rear edge portion 12 b of the slat 12 toward the through hole 22 . In this case, the communicating portion 116 faces the outside of the room, making it difficult to see from the inside of the room. Note that a notch of the communicating portion 116 may be provided from the front edge portion 12 a of the slat 12 toward the through hole 22 .

Further, as shown in FIG. 38, the slat 12 is provided near the side edge 12c of the front edge 12a at one end in the longitudinal direction, and the rear edge 12b is provided at the other end in the longitudinal direction. may be provided in the vicinity of the side edge portion 12c. In addition, one longitudinal end of the slat 12 is provided with a communicating portion 116 so as to communicate the side edge 12c and the through hole 22 (see FIG. 36), and the other longitudinal end is provided with a front edge. A communicating portion 116 may be provided so as to communicate between the portion 12a or the rear edge portion 12b and the through hole 22 (see FIG. 37). Furthermore, the communicating portion 116 may be configured by a cut oblique to the front edge portion 12a, the rear edge portion 12b, or the side edge portion 12c. As an example, the communicating portion 116 may be configured by a notch that connects the corner of the slat 12 and the through hole 22 .

The notch forming the communicating portion 116 may have a linear shape, a curved shape, or a shape combining a linear shape and a linear shape. By making the communication part 116 into a complicated shape, the first lifting cord 15a is more difficult to come off from the through-hole 22 during normal use.

[Modification of head box 11]
The headbox 11 is made of steel or aluminum. In the case of steel, it is formed by bending steel, and in the case of aluminum, it is extruded. FIGS. 39 and 40(a) show a steel headbox 11, which is the same as the headbox 11 shown in FIGS. 7, 8 and the like. The opening 36 as the first opening and the insertion hole 55 as the second opening are both through holes, but they are discontinuous rather than continuous through holes, and have a partition 50 therebetween. . Moreover, the partition portion 50 includes a corner portion formed by the bottom plate 11a and the front wall 11b and a corner portion formed by the bottom plate 11a and the rear wall 11c. Here, FIG. 40(a) is a cross-sectional view of the head box 11 in which the opening 36 and the insertion hole 55 are discontinuous, and FIG. 40(b) is a reference example in which the opening 36 and the insertion hole 55 are connected. , and a cross-sectional view of a headbox with a continuous hole 11y. Comparing FIGS. 40(a) and 40(b), it can be confirmed that the cross-sectional area is clearly larger in the case of having the partition portion 50 in FIG. 40(a) than in the case of the continuous hole 11y. Therefore, the steel headbox 11 has more strength in the vertical and longitudinal directions than when the openings 36 of the front wall 11b and the rear wall 11c and the insertion holes 55 of the bottom plate 11a are continuous holes 11y. can suppress the decrease in

41 and 42(a) show an aluminum headbox 11. FIG. In the case of the aluminum headbox 11, the front wall 11b and the rear wall 11c are provided with projecting pieces 11x downward. The projecting piece 11x functions as a light shielding plate between the uppermost slat 12 and the head box 11, and blocks external light from outside the room. Even in the case of the head box 11 made of aluminum, the opening 36 and the insertion hole 55 are discontinuous, and the partition 50 is provided therebetween. Moreover, the partition portion 50 includes a corner portion formed by the bottom plate 11a and the front wall 11b and a corner portion formed by the bottom plate 11a and the rear wall 11c. Here, FIG. 42(a) is a cross-sectional view of the head box 11 in which the opening 36 and the insertion hole 55 are discontinuous, and FIG. 42(b) is a reference example in which the opening 36 and the insertion hole 55 are connected. , and a cross-sectional view of a headbox with a continuous hole 11y. Comparing FIGS. 42(a) and 42(b), it can be confirmed that the cross-sectional area is clearly larger in the case of having the partition portion 50 in FIG. 42(a) than in the case of the continuous hole 11y. Therefore, the head box 11 made of aluminum has more strength in the vertical direction and the longitudinal direction than when the openings 36 of the front wall 11b and the rear wall 11c and the insertion hole 55 of the bottom plate 11a are continuous through holes. decline can be suppressed.

FIG. 43 shows a modification of the headbox 11 formed by bending steel if it is made of steel. The steel headbox 11 shown in FIGS. 39 and 40(a) has an opening 36 and an insertion hole 55 at the same position in the longitudinal direction, here at the center. On the other hand, in the example of FIG. 43 , the opening 36 and the insertion hole 55 are provided at different positions in the longitudinal direction of the head box 11 . The hanging position of the second lifting cord 15 from the head box 11 and the hanging position of the ladder cord 13 may differ in consideration of the size of the horizontal blind, the layout of parts, and the like. Even in such a case, the partition portion 50 exists between the opening portion 36 and the insertion hole 55 . Therefore, even in the head box 11 shown in FIG. 43, it is possible to suppress the decrease in strength in the vertical direction and the front-rear direction.

[Modified example of operation guide member 17e]
As shown in FIG. 44( a ), the operation guide member 131 includes a body portion 132 and a tilt gear gear box portion 133 attached to the body portion 132 . Further, the operation guide member 131 includes an introduction portion 134 into which the first lifting cord 15a and the second lifting cord 15b from the stopper 19 are introduced, a connector 135 connected to the tilt pole 18a as an operation portion, and a connector 135. and a lead-out portion 136 from which the first lifting cord 15a and the second lifting cord 15b are led out from the inside.

The main body portion 132 has a passage inside that connects the opening that constitutes the introduction portion 134 and the lead-out portion 136. The passage includes the first lifting cord 15a and the second lifting cord that are introduced from the introduction portion 134. A pulley 137 is arranged to change the path of 15b in the direction of lead-out 136 . A lead-out portion 136 of the connector 135 is connected to the passage of the main body portion 132, and leads out the first lift cord 15a and the second lift cord 15b. The first lifting cord 15a and the second lifting cord 15b led out from the lead-out portion 136 are bound by an equalizer 18 provided at the tip of the tilt pole 18a. The slats 12 can be raised and lowered by pulling the equalizer 18 .

The tilt gear gear box portion 133 accommodates a tilt gear train that transmits the rotation of the tilt pole 18 a to the tilt shaft 122 . Specifically, the tilt shaft 122 is rotated via the tilt gear by rotating the connector 135 to which the tilt pole 18a is connected. The periphery of the connector 135 in the body portion 132 is a portion facing the outside from the front wall 11b, and serves as a mounting portion 136a that engages with the mounting opening of the front wall 11b. The attachment portion 136a is, for example, a rectangular protrusion, and the connector 135 is exposed from the front wall 11b to the outside while the protrusion is engaged with the attachment opening of the front wall 11b. The tilt pole 18a is made connectable.

The body portion 132 includes a support roller 138 as a support portion that supports the first lifting cord 15a suspended from the head box 11 . A support frame 138 a that supports the support roller 138 is provided on the surface of the body portion 132 opposite to the introduction portion 134 . The support frame 138a rotatably supports the support roller 138 so that the rotation axis of the support roller 138 extends in the front-rear direction of the head box 11. As shown in FIG. The bottom plate 11a of the head box 11 positioned below the support roller 138 is provided with an insertion hole 139 through which the first lifting cord 15a is suspended. The support roller 138 corresponds to the support roller 80 provided in the support member 17b referred to in FIGS. 4 and 18, and the insertion hole 139 corresponds to the insertion hole 77. Therefore, as shown in FIG. 44(b), the first lifting cord 15a guided into the head box 11 from the outside of the head box 11 by the support roller 138 is guided toward the stopper 19, and then moved by the turning member 17d. After being turned and passing through the stopper 19 together with the second lifting cord 15b, it is introduced into the introduction portion 134. As shown in FIG. Since such an operation guide member 131 includes the support roller 138, the support roller 80 can be omitted from the support member 17b.

Note that the operation guide member 17e used in FIGS. 4, 18, etc. is configured without the support roller 138 and the support frame 138a.
[Other Modifications]
- Suppression of floating movement of the second lifting cord 15b can also be performed without using the pico 13c or the annular member 13d. That is, the space between the vertically aligned weft threads 13b serves as an insertion portion through which the second lifting cord 15b is inserted, and the second lifting cord 15b is inserted through the insertion portion between the vertically aligned weft threads 13b. Specifically, when the second lifting cord 15b is inserted through the insertion portion between the weft threads 13b from one side to the other side, the second lifting cord 15b is inserted into the next insertion portion separated by a plurality of stages, for example, about 5 to 7 stages. It is inserted from side to side. As a result, the second lifting cord 15b is prevented from moving freely by the side edge portion of the slat 12 and the weft thread 13b of the ladder cord 13 without deteriorating the design, without using the pico 13c or the annular member 13d. be done.

・As an operation part, in addition to the one-pole type in which the equalizer 18 is provided at the tip of the tilt pole 18a, the pole and the cord are attached separately, the slat 12 is opened and closed by turning the pole, and the bottom rail 14 is raised and lowered. A pole type operated by pulling a cord may be used. Specifically, as shown in FIGS. 45(a) to (c), in this horizontal blind, a pole 201 is suspended from the front wall 11b of the headbox 11. As shown in FIGS. A lifting cord 15 for lifting operation is hung from the front wall 11b at a position other than the hanging position of the pole 201, for example, from the pole 201 to the center of the head box 11 in the longitudinal direction. The lift cord 15 is connected through an equalizer 203 to an auxiliary cord 202 whose one end is connected to one end of the bottom rail 14 . A safety joint 204 is provided in the intermediate portion of the auxiliary cord 202 .

A rotation control section 205 having a tilt gear for controlling the rotation of the tilt shaft 122 is provided at the hanging position of the pole 201 inside the head box 11 . The rotation control unit 205 rotates the tilt shaft 122 according to the rotation operation of the pole 201 to vertically move the ladder cord 13 and rotate the slat 12 . In addition, at the hanging position of the lifting cord 15, a lead-out portion 206 leading out from the inside of the head box 11 is provided. A lead-out portion 206 as a lift member lead-out portion includes support rollers and the like, and changes the route of the lift cord 15 extending in the longitudinal direction inside the head box 11 to a direction led out to the front wall 11b.

In the horizontal blind as described above, the first lifting cord 15a and the second lifting cord 15b are routed within the head box 11 as follows. Specifically, as shown in FIG. 45(b), the first lifting cord 15a on the left side of the drawing is guided from outside the head box 11 into the head box 11 by a support member 17a as a first guide portion. It extends in the head box 11 from the left end in the figure toward the right end. The first lifting cord 15a on the right side in the figure is guided from outside the head box 11 into the head box 11 by a support member 17b as a first guide portion, and moves through the inside of the head box 11 in the longitudinal direction from the end on the right side in FIG. extending in the direction of the central part of the Then, it is folded back to the right side of the head box 11 by a turning member 17d as a turning portion. The second lifting cord 15b positioned in the longitudinal central portion of the headbox 11 is guided from outside the headbox 11 into the headbox 11 by a cord guide member 17c as a second guide portion, and extends longitudinally through the headbox 11. Extends from the center of the direction to the right. The two first elevating cords 15a and the two second elevating cords 15b are guided to a stopper 19 as an elevation control unit that prevents the slats 12 and the bottom rails 14 from dropping due to their own weight. , and then out of the head box 11 from the lead-out portion 206 . When inserted into the stopper 19, the widths of the first lifting cord 15a and the second lifting cord 15b are narrower than the insertion end of the stopper 19, and are inserted into the insertion end of the stopper 19 in parallel to each other.

The rotation control section 205 includes an avoidance guide section 121 that guides the first lifting cord 15a guided into the head box 11 from outside the head box 11 by the support member 17b (see FIGS. 27 to 33). The avoidance guide portion 121 guides the first lifting cord 15 a to avoid the stopper 19 .

- A horizontal blind may be placed between the inner window and the outer window. Alternatively, it may be arranged inside a translucent partition.
- As a solar shading device, it can be applied not only to horizontal blinds but also to pleated screens.

According to the above-described embodiment and its modifications, the following technical ideas are further derived.
(Appendix 1)
a head box from which the first elevating member and the second elevating member hang;
a shielding member that ascends and descends by the elevation of the first elevation member and the second elevation member;
a ladder cord suspended from the headbox and rotatably supporting each of the shielding members;
In the head box, comprising a support portion that supports the ladder cord, and a control shaft member that rotates the support portion,
The headbox includes a first guide section, a rotation control section, an elevation control section, a turning section, and a second guide section in this order from one end portion to an intermediate portion in the longitudinal direction,
The first guide part guides the first lifting member so that it hangs down,
The second guide part guides the second lifting member so that it hangs down,
The rotation control unit rotates the control shaft member to rotate the shielding member,
The turning portion turns the first elevating member extending from the first guide portion toward the turning portion toward the elevation control portion,
The elevation control section has the first elevation member rotated by the turning section and the second elevation member extending from the second guide section toward the elevation control section inserted therein. delivering the member and the second elevating member to a lead-out section that delivers the member and the second lifting member out of the head box;
A regulation state in which the first lifting member and the second lifting member permit the movement to raise the shielding member and restrict the movement to lower the shielding member, and the movement regulation to lower the shielding member is released. Toggle between the released state and the
the lead-out section guides the first elevating member and the second elevating member to the outside of the head box so that the shielding member can be moved up and down;
Between the rotation control section or the first guide section and the rotation control section, the first elevating member extending from the first guide section toward the turning section is guided so as to avoid the elevation control section. A solar radiation shielding device provided with an avoidance guide part for

(Appendix 2)
According to Supplementary Note 1, the avoidance guide portion guides the first lifting member extending from the first guide portion toward the turning portion along the rear wall of the head box while avoiding the lifting control portion. Solar shading device.

(Appendix 3)
According to Supplementary Note 1, the avoidance guide portion guides the first lifting member extending from the first guide portion toward the turning portion along the front wall of the head box while avoiding the lifting control portion. Solar shading device.

(Appendix 4)
The avoidance guide section guides the first elevation member extending from the first guide section toward the turning section so as to pass above the rotation control section and avoid the elevation control section. Shielding device.

(Appendix 5)
The avoidance guide portion guides the first lifting member extending from the first guide portion toward the turning portion so as to pass under the rotation control portion and avoid the lift control portion. Solar shading device.

(Appendix 6)
The avoidance guide section guides the first elevation member extending from the first guide section toward the turning section to pass through the rotation control section and avoid the elevation control section. .

(Appendix 7)
The solar radiation shielding device according to appendix 1, wherein the avoidance guide section is integrated with the elevation control section.

(Appendix 8)
The solar radiation shielding device according to appendix 1, wherein the avoidance guide section is separate from the elevation control section.

(Appendix 9)
a headbox that suspends a plurality of lifting members;
and a shielding member that moves up and down by lifting and lowering the plurality of lifting members,
The head box includes a lift member lead-out portion, guide portions positioned on both sides of the lift member lead-out portion, and elevation control portions positioned on both sides of the lift member lead-out portion and between the guide portions,
The elevating member lead-out unit guides the elevating member to the outside of the head box so that the shielding member can be moved up and down,
the guide part guides the elevating member so that it hangs down from the head box;
the elevation control section receives the elevation member extending from the guide section toward the elevation control section, and sends the inserted elevation member to the elevation member lead-out section;
The solar radiation shielding device switches between a regulated state in which the elevating member permits movement to raise the shielding member and regulates movement to lower the shielding member, and a release state in which movement regulation to lower the shielding member is released. .

(Appendix 10)
a headbox that suspends a plurality of lifting members;
a shielding member that ascends and descends by raising and lowering the plurality of raising and lowering members;
a ladder cord suspended from the headbox and rotatably supporting each of the shielding members;
The shielding member has through-holes through which the elevating member is inserted at both ends in the longitudinal direction,
The ladder cord includes a pair of warp yarns parallel to the elevating member and a weft yarn connecting the pair of warp yarns. located in
A solar radiation shielding device, wherein at least one point in an intermediate stage of the shielding member is positioned closer to an end portion of the shielding member than the elevating member through which the weft thread is inserted through the through hole.

(Appendix 11)
The solar radiation shielding device comprises a bottom rail arranged further below the lowermost shielding member among the plurality of shielding members,
11. The solar shading device of Claim 10, wherein the intermediate stage is anywhere between the headbox and the bottom rail.

(Appendix 12)
Between the head box and the bottom rail, the weft thread is positioned closer to the end of the shield member than the elevating member through which the weft thread is inserted through the through-hole by one stage of the shield member. 12. The solar shielding device according to 11.

(Appendix 13)
a headbox that suspends a plurality of lifting members;
a shielding member that ascends and descends by raising and lowering the plurality of raising and lowering members;
a ladder cord suspended from the headbox and rotatably supporting each of the shielding members;
a bottom rail disposed further below the lowermost shielding member among the plurality of shielding members and connected to the elevating member;
The shielding member has through-holes through which the elevating member is inserted at both ends in the longitudinal direction,
The ladder cord includes a pair of warp yarns parallel to the lifting member and a weft yarn connecting the pair of warp yarns,
Directly above the bottom rail, the lifting member inserted through the through hole is located closer to the end of the shielding member than the weft thread.

(Appendix 14)
14. The solar radiation shielding device according to appendix 13, wherein directly under the head box, the elevating member inserted through the through hole is positioned closer to the end portion side of the shielding member than the weft thread.

(Appendix 15)
a headbox and
a shielding member arranged below the headbox;
a lifting member that hangs from the head box and lifts and lowers the shielding member;
The elevating member includes a first elevating member suspended from both longitudinal ends of the head box, and a second elevating member suspended from the head box between the first elevating members, wherein the shielding member is a shielding member. and the second elevating member arranged oppositely across the
A solar radiation shielding device, wherein the shielding member has, at both ends in the longitudinal direction, through holes through which the first elevating member is inserted, and communicating portions that communicate the through holes and outer edges of the shielding member.

(Appendix 16)
a headbox comprising a bottom plate and a front wall and a rear wall erected on the bottom plate;
a shielding member positioned below the headbox;
an elevating member suspended from each of the outer surface of the front wall and the outer surface of the rear wall for elevating the shielding member;
a ladder cord suspended from the headbox and rotatably supporting each of the shielding members;
a first opening provided in the front wall and the rear wall and allowing the lifting member to hang down from the front wall and the rear wall;
A second opening provided in the bottom plate and allowing the ladder cord to hang down,
A solar radiation shielding device, further comprising: a partition part between the first opening and the second opening, which makes the first opening and the second opening discontinuous.

(Appendix 17)
17. The solar shading device according to appendix 16, wherein the first opening and the second opening are located at the same position in the longitudinal direction of the headbox.

(Appendix 18)
18. The solar radiation shielding device according to appendix 16 or 17, wherein the partition includes a corner formed by the bottom plate and the front wall and a corner formed by the bottom plate and the rear wall.

(Appendix 19)
A cap member that is arranged at one end of a head box from which an elevating member for elevating a shielding member is suspended and that closes the end of the head box,
The cap member has a closing surface that closes one end of the head box;
A cap member that supports the lifting member suspended from the inside of the head box to the outside of the head box.

(Appendix 20)
The support portion is a support roller that supports the lifting member,
20. The cap member according to appendix 19, wherein the support roller is arranged such that the rotation axis of the support roller extends in the front-rear direction of the head box.

(Appendix 21)
A ladder cord that rotatably supports each of the shielding members hangs from the headbox,
21. The cap member according to appendix 19 or 20, wherein the cap member rotatably supports a drum to which the ladder cord is fixed such that a rotating shaft extends in the longitudinal direction of the head box.

(Appendix 22)
An elevating member for elevating a shielding member is disposed in a head box suspended, and the elevating member extending inside the headbox is led out of the headbox so that the shielding member can be moved up and down. A solar radiation shielding device comprising an operating portion including a support portion that supports the elevating member that hangs from the head box outside the head box from the end portion side of the shielding member.

(Appendix 23)
a headbox having a front wall and a rear wall;
a shielding member positioned below the headbox;
an elevating member suspended from each of the outer surface of the front wall and the outer surface of the rear wall for elevating the shielding member;
a front-side route changing unit that changes a route of the lifting member hanging down from the outer surface of the front wall to a route extending inside the headbox;
a rear side route changing unit for changing a route of the lifting member hanging from the outer surface of the rear wall to a route extending inside the head box;
an elevation control section into which the elevation member from the front side route changing section and the rear side route changing section is inserted;
The elevating control unit has a regulated state in which the elevating member permits the movement of the elevating member to raise the shielding member and restricts the movement in which the shielding member is lowered, and a release state in which the movement regulation of lowering the shielding member is released. and
The front-side route changing section and the rear-side route changing section make the distance between the elevation member from the front-side route changing section and the rear-side route changing section narrower than the width of the insertion end of the elevation control section, A solar radiation shielding device in which the lifting member is inserted into the lifting control section.

(Appendix 24)
In the holder that attaches the lifting member and the ladder cord suspended from the head box to the bottom rail arranged below the shielding member,
a main body;
Engagement portions provided at opposite ends of the main body portion in the front-rear direction and engaged with the bottom rail;
a first groove provided in the engaging portion and engaged with the warp yarn of the ladder cord extending in the front-rear direction of the bottom rail;
a second groove provided in the engaging portion in parallel with the first groove and engaged with the elevating member extending in the front-rear direction of the bottom rail.

(Appendix 25)
25. The holder according to appendix 24, wherein the warp thread engaged with the first groove and the lifting member engaged with the second groove are arranged in parallel.

DESCRIPTION OF SYMBOLS 11... Head box, 11a... Bottom plate, 11b... Front wall, 11c... Rear wall, 11d... Opening, 11x... Projection piece, 11y... Continuous hole, 12... Slat, 12a... Front edge, 12b... Rear edge, 12c side edge 13 ladder cord 13a warp 13b weft 13c pico 13d annular member 14 bottom rail 14a front edge groove 14b rear edge groove 15a first lift Code 15a Lifting cord 15b Lifting cord 15b Second lifting cord 15x Intermediate portion 15y First lifting portion 15z Second lifting portion 16 Holder 16a Body portion 16b Hook Joining portion 16c First groove 16d Second groove 16e Adjusting member 16f Engagement groove 16g Recess 17a Support member 17b Support member 17c Cord guide member 17d Turn Members 17e... Operation guide member 18... Equalizer 18a... Tilt pole 19... Stopper 19a... Insertion end 19b... Delivery end 19x... Case 19x1... Guide groove 20... Guide member 22... Through hole, 30a... First space 30b... Second space 31... Front side contact part 32... Rear side contact part 33... Front side guide part 34... Rear side guide part 36... Opening 37... Connection Parts 37a... First arm 37b... Second arm 37c... Guide hole 38... Cylindrical part 38a... Rotational support wall 38b... Support concave part 38c... Vertical surface 38d... Rising wall 38e... Mounting groove , 38f... Projection 39... Pulley 39a... Rotating shaft 41... Passage 41a... First doorway 41b... Second doorway 41c... Inclined guide surface 42... Guide wall 43... Guide roller 43a... Guide Surface 46 Cover 46a Main surface 46b Side wall 46c Upper surface 46d Guide rail 46e Recess 47 Guide wall 48 Center line 50 Partition 51 Support member 51a...Side wall 51b...Bottom plate 51c...Side wall 52...Drum 52a...Main body part 52b...Axle part 52c...Axle hole 52d...Locking groove 53...Bearing part 54...Through hole 55...Insertion Hole 56 Positioning projection 57 Notch 57a Engagement projection 58 Swelling portion 62 Roller 63 Upper support portion 63a Shaft hole 64 Lower support portion 64a Shaft Hole 65 Side support portion 66 Attachment piece 66a Connection piece 66b Support piece 66c Projection 66d Projection 67 Positioning portion 67a Positioning hole 71 Side wall 72 Bearing 73 Notch 74 Bottom plate 75 Through hole 76 Positioning projection 77... Insertion hole, 78... Swelling portion, 79... Side wall, 80... Support roller, 86... Cap member, 86a... Closed surface, 86b... Peripheral wall, 87... Support wall, 88... Bearing portion, 88a... Support projection, 88b ... Shaft hole 89 ... Through hole 91a ... Front side contact portion 91b ... Rear side contact portion 92 ... Connection arm 92a ... Connection hole 93 ... Connection projection 94 ... Through hole 94a ... Half hole, 94b...Semi-hole 95...Positioning protrusion 95a...Protrusion 95b...Protrusion 96...Support roller 96a...Rotation support part 97a...Side wall part 97b...Side wall part 98...Bearing part 98a...Recessed part , 98b... Recess 100... Window frame 100a... Vertical frame 100b... Horizontal frame 101... Translucent area 102... Through hole 103... Curtain box 116... Communication part 121... Avoidance guide part 121a... Gear Box 122 Tilt shaft 131 Operation guide member 132 Body portion 133 Gear box portion 134 Introduction portion 135 Connector 136 Derivation portion 136a Mounting portion 137 Pulley 138 Support roller 138a Support frame 139 Insertion hole 201 Pole 202 Auxiliary cord 203 Equalizer 204 Safety joint 205 Rotation control unit 206 Derivation unit.

Claims (3)

a headbox that suspends a plurality of lifting members;
a plurality of shielding members that ascend and descend by the elevation of the plurality of ascending and descending members;
a ladder cord suspended from the headbox and rotatably supporting each of the shielding members;
a bottom rail disposed further below the lowermost shielding member among the plurality of shielding members and connected to the elevating member;
The shielding member has through-holes through which the elevating member is inserted at both ends in the longitudinal direction,
The ladder cord includes a pair of warp yarns parallel to the lifting member and a weft yarn connecting the pair of warp yarns,
Directly above the bottom rail, the lifting member inserted through the through hole is located closer to the end of the shielding member than the weft thread. 2. The solar radiation shielding device according to claim 1, wherein directly below the head box, the elevating member inserted through the through-hole is located closer to the end of the shielding member than the weft thread. a headbox that suspends a plurality of lifting members;
a plurality of shielding members that ascend and descend by the elevation of the plurality of ascending and descending members;
a ladder cord suspended from the headbox and rotatably supporting each of the shielding members;
a bottom rail disposed further below the lowermost shielding member among the plurality of shielding members and connected to the elevating member;
The shielding member has through-holes through which the elevating member is inserted at both ends in the longitudinal direction,
The ladder cord includes a pair of warp yarns parallel to the lifting member and a weft yarn connecting the pair of warp yarns,
The elevating member inserted through the through hole hangs down from the head box on the middle side of the shielding member in the longitudinal direction from the weft thread,
The distance (C) from the head box at which the weft thread switches from the end portion side of the shielding member to the intermediate portion side of the head box from the elevating member inserted through the through hole is
A solar radiation shielding device that is set to be shorter than a projecting dimension (A) from the elevating member inserted through the through-hole to the longitudinal end of the shielding member directly below the head box and directly above the bottom rail.

Images