JP2017201107A - Solar shading device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar shading device capable of easily assembling a lifting cord.SOLUTION: The solar shading device includes: a headbox which has a front wall and rear wall; slats which are positioned below the headbox; a lifting cord for lifting the slats which extends downward from each of the front wall and the rear wall; a front side path changing part 33 for changing the path of the lifting cord, which extends downward from the outer face of the front wall, to a path which extends to the inside of the head box; and a rear side path changing part 34 for changing the path of the lifting member, which extends downward from the outer face of the rear wall, to a path which extends to the inside of the headbox.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a solar radiation shielding device.

  A horizontal blind, which is one of solar shading devices, includes a plurality of slats supported by a ladder cord and a plurality of lifting cords for lifting and lowering the plurality of slats. The plurality of lifting cords are disposed, for example, at the center portion of the slat and both end portions of the slat in the longitudinal direction of the slat as the shielding member. These lifting and lowering cords and ladder cords are connected to a bottom rail located under the lowest slat. When the bottom rail is raised, the slat rises while being stacked on the bottom rail by the operation of the lifting / lowering cord (see Patent Document 1). The elevating cords are respectively suspended from the bottom surface of the head box in the front-rear direction of the slats, and each elevating cord is disposed along the front edge portion and the rear edge portion of the slats.

Japanese Patent Laying-Open No. 2015-40465

  In the horizontal blind of Patent Document 1, it is desired to reduce the size of the head box, and the width of the front wall and the rear wall of the head box is reduced. When the head box is downsized, the lifting cord is pulled out from the bottom of the head box and suspended along the front and rear edges of the slat. The eye slats are inclined toward the front and rear edges. For this reason, the lifting / lowering cord has a large friction with the front edge portion and the rear edge portion of the first stage slat. Then, the slats are repeatedly raised and lowered, and the raising and lowering cords are worn by being rotated.

  Even in a pleated screen using pleated fabric as a shielding member, the screen is suspended from the head box and lifted by a lifting cord. In this way, the pleated screen also has the same principle of raising and lowering the shielding member except that the horizontal blind and the shielding member are different in configuration, and the same problem arises.

  The present invention has been made to solve the above problems, and an object of the present invention is to provide a solar radiation shielding device that can reduce friction between the elevating member and the shielding member.

  A solar radiation shielding device for solving the above problems includes a head box including a front wall and a rear wall, a shielding member positioned below the head box, and an outer surface of the front wall and an outer surface of the rear wall. An elevating member that is suspended and elevates the shielding member, a front side path changing unit that changes a path of the elevating member hanging from the outer surface of the front wall into a path extending inside the head box, and A rear surface side path changing unit that changes a path of the elevating member hanging from the outer surface of the rear wall to a path extending inside the head box.

  In the solar radiation shielding device, the front-side route changing unit and the rear-side route changing unit are connected by a connecting unit, and the connecting unit includes the front-side route changing unit and the rear-side route changing unit. The head box may be connected so as to be displaced with respect to the front-rear direction.

In the solar radiation shielding device, the connecting portion may be configured to be elastically displaceable with respect to the front-rear direction of the head box.
The said solar radiation shielding apparatus WHEREIN: While making the said front side path | route change part displace and project in the direction of the said front wall, it is good also as a structure which displaces and projects the said rear surface side path | route change part in the direction of the said rear surface wall.

  The solar radiation shielding device further includes a regulating member disposed between the front side path changing unit and the rear side path changing unit, wherein the regulating member is a direction in which the front side path changing unit is separated from the front wall. It is good also as a structure which restrict | limits that the said rear surface side path | route change part displaces in the direction which leaves | separates from the said rear surface wall.

  The solar radiation shielding device may further include a ladder cord that is suspended from the head box and rotatably supports each of the shielding members, and the restricting member may be configured to suspend and support the ladder cord.

  In the solar radiation shielding device, each of the front side path changing unit and the rear side path changing unit may include a guide support unit that guides and supports the elevating member that enters and exits the head box.

  In the solar radiation shielding device, the head box includes an opening at a position where the elevating member hangs down in each of the front wall and the rear wall, and each of the front side path changing unit and the rear side path changing unit. May be configured to fit into the opening and project outward with respect to each of the front wall and the rear wall.

The said solar radiation shielding apparatus WHEREIN: It is good also as a structure further equipped with the guide path which guides the said raising / lowering member from the said guide support part to the said inside of the head box.
In the solar radiation shielding device, the guide passage includes a first doorway located on a side closer to the guide support part and a second doorway located on a side farther from the first doorway than the guide support part. It is good also as a structure provided with the guide part which guides the said raising / lowering member guide | induced to the said head box in the said 2nd entrance / exit.

  The solar radiation shielding device is suspended from a head box having a front wall and a rear wall, a shielding member positioned below the head box, and the front wall side and the rear wall side, and lifts and lowers the shielding member. An elevating member for projecting, a front side lead-out entrance through which the elevating member hanging from the front wall side protrudes from and enters the head box, and projects from the front wall side, and the rear wall The elevating member that protrudes and hangs down from the rear wall side includes a rear surface outlet for entering and exiting the head box.

The solar radiation shielding device further includes a bottom rail supported by the elevating member so as to be movable up and down, and the elevating member is a member that is suspended from the front-side outlet and the rear-side outlet and is turned around the bottom rail. It may be configured.
The said solar radiation shielding apparatus WHEREIN: The said bottom rail is good also as a structure provided with the holder which hold | maintains the said raising / lowering member, and the said holder is provided with the groove | channel with which the said raising / lowering member engages.

  In the solar shading device, at least one of a front-side protruding portion that protrudes from the front wall and constitutes the front-side outlet and a rear-side protruding portion that protrudes from the rear wall and constitutes the rear-side outlet. One of them may be covered with a cover.

  In the solar radiation shielding device, each of the front surface side protruding portion and the rear surface side protruding portion includes a guide support portion that guides and supports the lifting member at each of the front surface side outlet port and the rear surface side outlet port, The cover may include a guide portion that guides a tip portion of the elevating member that enters from the outside of the head box and passes through the guide support portion in a direction toward the inside of the head box.

  ADVANTAGE OF THE INVENTION According to this invention, the solar radiation shielding apparatus which enabled reducing friction with a raising / lowering member and a shielding member can be provided.

The front view of the horizontal blind in one Embodiment. The side view of the horizontal blind in one Embodiment. The top view of the slat used for the horizontal blind in one Embodiment. The top view which shows the internal structure of the head box used for the horizontal blind in one Embodiment. (A) is the side view which showed the 1st raising / lowering cord and ladder code in the both ends of the longitudinal direction of the horizontal blind in one Embodiment, (b) is the 1st in the center part of the longitudinal direction of the horizontal blind in one Embodiment. The side view which showed 2 raising / lowering cords and ladder cords. The perspective view which shows the state in which the holder was attached in the center part of the longitudinal direction of a bottom rail. The disassembled perspective view of the internal structure of a head box. The disassembled perspective view which shows the mutual relationship of a head box, a code | cord | chord guide member, a support member, and a cover. The side view which shows the state in which the connection part of the code | guide guide member bent inside, and the state attached in the head box. The principal part top view which shows the relationship between a code guide member and a 2nd raising / lowering cord. The perspective view which shows a guide part and a cover. The perspective view of a code guide member. The principal part front view which shows the relationship between the 2nd raising / lowering cord and the guide part of a cover. The disassembled perspective view which shows the relationship between a head box, a code | cord | chord guide member, and a support member. The side view which shows the state which arrange | positions a support member with respect to the code | cord | chord guide member arrange | positioned in a head box. The disassembled perspective view which shows a stopper, a rolling member, and a guide member. The disassembled perspective view which shows the drum of a support member and a ladder cord. The disassembled perspective view which shows the relationship between a head box and a support member. The front view which shows the relationship between the horizontal blind in one Embodiment, and a window frame. The principal part side view which shows the state which the slat piled up in the bottom rail in the horizontal blind in one Embodiment. The perspective view which shows the modification of a code | guide guide member. The perspective view which shows the modification of the connection part in a code guide member. The perspective view which shows the modification of a rolling member and a guide member.

Hereinafter, a horizontal blind according to an embodiment will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the horizontal blind 10 includes a head box 11 attached to an attachment part such as a ceiling, a window frame, and a curtain box, and a plurality of slats 12 as shielding members that shield sunlight. Yes. The horizontal blind 10 includes three ladder cords 13 that support a plurality of slats 12 so as to be tilt-adjustable, a bottom rail 14 that is positioned below the lowermost slats 12, and one end that is connected to the bottom rail 14. A first lifting / lowering cord 15a as a first lifting / lowering member to be connected and a second lifting / lowering cord 15b as a second lifting / lowering member are provided. And the 1st raising / lowering cord 15a and the ladder cord 13 are arrange | positioned at each of the both ends of the longitudinal direction of the slat 12, and the 2nd raising / lowering cord 15b and the ladder cord 13 are arrange | positioned in the intermediate part of the longitudinal direction of the slat 12. ing.

  The slat 12 is formed of a synthetic resin plate, a metal plate such as aluminum or stainless steel, and is formed in an elongated rectangular thin plate shape, and an upper surface portion has an arcuate surface. The slat 12 may be formed of a wooden board. The plurality of slats 12 are arranged so that the slats 12 are arranged in the ascending / descending direction, which is the height direction of the horizontal blind 10, and are supported by a ladder cord 13 suspended from the head box 11 so that the tilt adjustment is possible. A bottom rail 14 having a length substantially the same as that of the slat 12 is disposed below the lowermost slat 12.

  The bottom rail 14 functions as a weight member when maintaining the state in which the plurality of slats 12 are lowered, and is formed of a metal material such as SECC. The bottom rail 14 has substantially the same longitudinal length and short width as the slats 12, and when the bottom rail 14 is pulled up, a plurality of slats 12 are stacked on the bottom rail 14. The ladder cord 13 is connected to the bottom rail 14. Further, the bottom rail 14 is connected to the first lifting / lowering cord 15a and the second lifting / lowering cord 15b drawn from the head box 11, and is suspended from the head box 11 by the first lifting / lowering cord 15a and the second lifting / lowering 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 slats 12, a long side is defined as a lateral direction at a central portion in the front-rear direction which is a short direction The rectangular through hole 22 is disposed. The first elevating cord 15a is inserted through each of the through holes 22. The positions where each through hole 22 is arranged are as close as possible to both ends, and the length from the through hole 22 to the tip is determined by the weight of the part ahead of the through hole 22 when supported by the ladder cord 13. It is said that it does not bend. In addition, the second elevating cord 15b is arranged at the center portion in the longitudinal direction of the slat 12 at the opposite side edge portions of the slat 12 in the front-rear direction. The slat 12 is not formed with a through hole necessary for the insertion of the second lifting / lowering cord 15b. In the central part of the slat 12 in the longitudinal direction, the above-described through-hole is not formed, so that high light shielding is ensured.

  As shown in FIG. 4, the horizontal blind 10 manually opens and closes the slat 12 and raises and lowers the bottom rail 14. Inside the head box 11, four lifting cords 15 a and 15 b are guided by guide members. The box 11 is collected at one end in the longitudinal direction. Specifically, the first lifting / lowering cord 15a on the left side in FIG. 4 is guided from the outside of the head box 11 into the head box 11 by the support member 17a serving as the first guiding portion, and the inside of the head box 11 on the left side in FIG. It extends from the end toward the right end. 4 is guided from the outside of the head box 11 into the head box 11 by a support member 17b as a first guide portion, and the inside of the head box 11 is the end portion on the right side in FIG. It extends toward the center of the longitudinal direction. The second lifting / lowering cord 15b located at the center in the longitudinal direction of the head box 11 is guided into the head box 11 from the outside of the head box 11 by a cord guide member 17c as a second guide portion, and the inside of the head box 11 is elongated. It extends from the center of the direction to the right.

  The tilt pole 18a as an operation part for raising and lowering the bottom rail 14 and the equalizer 18 provided at the tip of the tilt pole 18a are located on the inner side of the support member 17b on the center side in the longitudinal direction of the head box 11. . For this reason, the first lifting / lowering cord 15a on the right side in FIG. 4 extends from the right end in FIG. 4 to the left side of the head box 11 and then is turned by the turning member 17d as a turning part. Wrapped to the right. The two first lifting / lowering cords 15a and the two second lifting / lowering cords 15b are led to a stopper 19 as a lifting control unit that prevents the slat 12 and the bottom rail 14 from falling due to their own weights in an aggregated state. . The stopper 19 is switched between a state in which the movement of the lifting / lowering cords 15a and 15b is prevented and a state in which the movement is allowed by the operation of the four lifting / lowering cords 15a and 15b. Then, the four lifting / lowering cords 15 a and 15 b gathered by the stopper 19 are led out of the head box 11 from the operation guide member 17 e as a cord lead-out portion, and are bundled by the equalizer 18. Specifically, the stopper 19 allows the lifting / lowering cords 15a and 15b to move up and down the slat 12 and releases the restriction state that restricts the movement of lowering the slat 12 and the movement restriction of lowering the slat 12. Toggle between release state. The stopper 19 is normally in a restricted state, and once the lifting / lowering cords 15a and 15b are moved in the direction in which the slats 12 are lifted / lowered, the stopper 19 is released and moves the lifting / lowering cords 15a and 15b in the direction in which the slats 12 are lowered.

  When the equalizer 18 is pulled downward, the bottom rail 14 and the slat 12 can be raised, and by stopping, the rise of the bottom rail 14 and the slat 12 can be stopped halfway. At the time of ascent, the bottom rail 14 rises, and as the bottom rail 14 rises, a plurality of slats 12 are stacked on the bottom rail 14 in order from a position close to the bottom rail 14. Further, when the slat 12 is lowered, the equalizer 18 is slightly pulled down and loosened, and when stopped halfway, the equalizer 18 is pulled again to stop the bottom rail 14 from being lowered. 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 to the left and right, the slat 12 can be rotated to switch between the fully closed state and the fully open state.

  Inside the head box 11, in order from the right end, the support member 17b of the first lifting / lowering cord 15a, the operation guide member 17e, the code guiding member 17c of the second lifting / lowering cord 15b, and the support member 17a of the first lifting / lowering cord 15a are in the longitudinal direction. It is lined up along. The operation guide member 17 e leads the first elevating cord 15 a and the second elevating cord 15 b to the outside of the head box 11 and is attached to the equalizer 18. The equalizer 18 and the tilt pole 18a, which are operation units, are arranged between the support member 17b and the stopper 19, and the support members 17a and 17b are arranged as close as possible to both ends of the head box 11.

  As shown in FIG. 5A, the two first elevating cords 15 a arranged one by one at both ends in the longitudinal direction of the slat 12 move up and down both ends in the longitudinal direction of the bottom rail 14. Each of the two first elevating cords 15a is inserted into a through hole 22 located in the center portion of each slat 12 in the short direction, and the tip thereof is attached to the center portion of the bottom rail 14 in the short direction. It is connected by being inserted into the hole and locked inside.

  As shown in FIG. 5 (b), the second lifting / lowering cord 15 b located at the center in the longitudinal direction of the slat 12 moves up and down the center of the bottom rail 14. The 2nd raising / lowering cord 15b is extended along the raising / lowering direction to the front edge part inside the room of the slat 12, and the rear edge part outside the room. The 2nd raising / lowering cord 15b is comprised with one string-like member, and when the intermediate part 15x is rolled in the bottom rail 14, the 1st raising / lowering part 15y located in the both sides of the intermediate part 15x, and the 2nd raising / lowering part 15z Extending to the front edge inside the room and the rear edge outside the room. And the 1st raising / lowering part 15y located in the front edge part of the slat 12 of the 2nd raising / lowering cord 15b and the 2nd raising / lowering part 15z located in the rear edge part of the slat 12 oppose on both sides of the slat 12. The second lifting / lowering cord 15b can be lifted while holding the bottom rail 14 in the front-rear direction and lifting the bottom rail 14 while preventing the bottom rail 14 from inclining to the inside or the outside of the room.

  All the raising / lowering cords 15a and 15b are string-like members such as a round string having a circular cross section, and the same thickness and the same strength are used over the entire length. Note that the ends of the lifting cords 15 a and 15 b opposite to the bottom rail 14 are bound by an equalizer 18 via the head box 11. The elevating cords 15 a and 15 b are members that suspend the bottom rail 14 from the head box 11, and have strength that can 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.

  The ladder cord 13 includes a pair of warp yarns 13a extending in the height direction of the horizontal blind 10, and a weft yarn 13b disposed between the warp yarns 13a. The weft 13b supports each slat 12 from the lower side. The weft yarn 13b may be formed of an upper weft yarn and a lower weft yarn in an annular shape, and the slat 12 may be supported by passing the slat 12 between the upper weft yarn and the lower weft yarn. The length of the protrusion from the ladder cord 13 located at both ends in the longitudinal direction of the slat 12 to the end of the slat 12 is such that the slat 12 is not bent by its own weight.

  The two first elevating cords 15 a located at both ends of the slat 12 are knitted on the weft 13 b of the ladder cord 13 located at both ends of the slat 12. That is, the first lifting / lowering cord 15a is located on the inner side of the weft thread 13b with respect to the predetermined weft thread 13b (on the central portion side in the longitudinal direction of the slat 12), and on the outer side of the different predetermined weft thread 13b (of the slat 12). It is knitted so as to be located on the longitudinal end side). That is, the first elevating cord 15a is knitted into the ladder cord 13 alternately from the inside to the outside and then from the outside to the inside with respect to the weft 13b. Since the ladder cord 13 located at both ends of the slat 12 in the longitudinal direction is located in the vicinity of the end of the slat 12, the weft 13b may be detached from the slat 12. The two first elevating cords 15a are knitted into the ladder cord 13 so that the end portion of the slat 12 through which the first elevating cord 15a is inserted into the through hole 22 does not come off from the weft 13b.

  Of the three ladder cords 13, the warp 13a of the ladder cord 13 along the second lifting cord 15b includes a pico 13c through which the second lifting cord 15b is inserted. The pico 13c is an annular body configured by drawing a yarn from the warp 13a when the ladder cord 13 is a knitted string. The pico 13c is disposed on each warp 13a located inside and outside the room, and the first raising / lowering part 15y inside the room and the second raising / lowering part 15z outside the room are inserted through the second raising / lowering cord 15b. Further, an annular member 13d made of resin is attached to the pico 13c closest to the head box 11 of the warp yarn 13a. The annular member 13d has a physical strength higher than that of the pico 13c, and has a strength that does not break due to friction even if the second elevating cord 15b repeatedly moves. The pico 13c has been described as an annular portion made of a yarn at the knot between the warp yarn 13a and the weft yarn 13b. However, a resin-molded annular body may be integrally provided on the warp yarn 13a. The annular member 13d may be omitted.

[Configuration of holder]
A holder 16 is attached to the bottom rail 14 at a position where the three ladder cords 13 are suspended. The warp yarn 13a of the ladder cord 13 is also a single string-like member, and the intermediate portion 15x is turned around 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. Extending to the front edge inside the room and the rear edge outside the room. The holder 16 disposed at an intermediate position of the bottom rail 14 holds the ladder cord 13 positioned along the second lifting / lowering cord 15b and the second lifting / lowering cord 15b.

  As shown in FIG. 6, the holder 16 disposed in the intermediate portion of the bottom rail 14 includes a main body portion 16 a that covers the bottom surface of the bottom rail 14, and both ends of the main body portion 16 a are at the front edge groove portion of the bottom rail 14. 14a and the engaging part 16b engaged with the trailing edge groove part 14b are comprised. The opposing engaging portion 16b has a first groove 16c in which an intermediate portion of the warp 13a of the ladder cord 13 is engaged and a second groove 16d in which an intermediate portion 15x of the second lifting / lowering cord 15b is engaged. ing. Moreover, the adjustment member 16e comprised with the screw is arrange | positioned on the path | route of the warp 13a engaged with the 1st groove | channel 16c at the main-body part 16a. The tip end portion of the shaft portion of the adjustment member 16e faces the inner surface of the main body portion 16a, and an engagement groove 16f is formed. The warp yarn 13a is engaged with the engagement groove 16f.

  A recess 16g is formed on the inner surface of the main body 16a and around the adjustment member 16e. When the adjusting member 16e is rotated and the warp 13a is wound around the shaft around the adjusting member 16e, the excess warp 13a that has been wound is disposed in the recess 16g. The holder 16 engages the warp 13a in the first groove 16c and the intermediate portion 15x of the second lifting / lowering cord 15b in the second groove 16d, and connects the engaging portion 16b to the bottom rail 14 from the bottom surface side of the bottom rail 14. The front edge groove portion 14a and the rear edge groove portion 14b are engaged with each other. As a result, the holder 16 is attached to the bottom rail 14. At this time, the intermediate portion of the warp 13a engaged with the first groove 16c is pressed against the bottom surface of the bottom rail 14, and the intermediate portion 15x of the second lifting / lowering cord 15b engaged with the second groove 16d It is pressed against the bottom. Thereby, the drawing position from the bottom rail 14 of the warp 13a and the 2nd raising / lowering cord 15b is fixed by the holder 16 without shifting | deviating to the direction where a cord extends.

  A groove portion that is exposed on the outer surface of the main body portion 16a and engages with a tool such as a coin or a flat-blade screwdriver is formed on the screw head of the adjustment member 16e. When the tool is engaged with the groove and the adjusting member 16e is rotated, the length of the warp 13a is adjusted.

  In addition, the holder 16 holding the warp 13a of the ladder cord 13 located at both ends in the longitudinal direction of the bottom rail 14 does not include the second groove 16d with which the intermediate portion 15x of the second lifting / lowering cord 15b is engaged. Become. Moreover, it is good also as a structure which omits the adjustment member 16e in any holder 16. FIG.

[Internal configuration of head box]
As shown in FIGS. 4 and 7, the head box 11 includes a bottom plate 11a, a front wall 11b that faces the inside of the room, and a rear wall 11c that faces the outside of the room, and an opening 11d is formed on the upper surface facing the bottom plate 11a. The cross-sectional shape is formed in a U shape. The front wall 11b and the rear wall 11c are hanging walls, and the first distance, which is the distance between the front wall 11b and the rear wall 11c, is constant from the opening 11d to the bottom plate 11a. Support members 17a and 17b as first guide portions are disposed at both ends in the longitudinal direction in the inner space formed by the bottom plate 11a, the front wall 11b, and the rear wall 11c of the head box 11, and are arranged in the middle in the longitudinal direction. A cord guide member 17c as a second guide portion is disposed in the portion. In addition, a stopper 19 as an elevation control unit is disposed 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 as a third guide portion for guiding the first lifting / lowering cord 15a from the support member 17b along the rear wall 11c is disposed. On the cord guide member 17c side of the stopper 19, a turning member 17d as a turning portion that turns the first elevating cord 15a along the rear wall 11c and guides it to the stopper 19 is disposed. Here, the width of the head box 11 in the front-rear direction is reduced to the same or slightly wider than the width of the slat 12 in the front-rear direction, thereby realizing downsizing.

[Configuration of Cord Guide Member 17c]
As shown in FIG. 8, the code guide member 17c includes a front-side contact portion 31 that faces the front wall 11b and a rear-side contact portion 32 that faces the rear wall 11c.
The front-side contact portion 31 includes a front-side path changing portion 33 that protrudes integrally with the front-side contact portion 31 at a substantially central portion in the longitudinal direction. In addition, the rear surface side contact portion 32 includes a rear surface side path changing portion 34 that protrudes integrally with the rear surface side contact portion 32 at a substantially central portion in the longitudinal direction.
The front-side contact portion 31 has a flat surface that faces the front wall 11b and corresponds to the inner surface shape of the front wall 11b. The rear surface side abutting portion 32 also has a flat surface corresponding to the inner surface shape of the rear surface wall 11c.
The front-side path changing unit 33 protrudes from the front-side contact portion 31, thereby fitting into the opening 36 formed in the front wall 11 b and protruding from the outer surface of the front wall 11 b. The rear surface side path changing portion 34 also projects with respect to the rear surface side contact portion 32, so that it fits into the opening 36 formed in the rear surface wall 11c and projects from the outer surface of the rear surface wall 11c.
The front-side path changing unit 33 also functions as a front-side guide unit that guides the entrance / exit of the first elevating unit 15y located on the front wall 11b side of the second elevating cord 15b. Specifically, the front-side path changing unit 33 changes the path of the second lifting / lowering cord 15b hanging from the outer surface of the front wall 11b to a path extending inside the head box 11. The rear surface side path changing unit 34 also functions as a rear surface side guide unit that guides the entrance / exit of the second elevating unit 15z located on the rear wall 11c side. Specifically, the rear surface side route changing unit 34 changes the route of the second lifting / lowering cord 15b hanging from the outer surface of the rear wall 11c to a route extending inside the head box 11.
The front-side path changing unit 33 and the rear-side path changing unit 34 are protrusions on the front side and the rear side 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 / lowering cord 15b, the slat 12 or the like does not become an obstacle, and the tip of the second lifting / lowering cord 15b can be easily formed from the lower surfaces of the front-side path changing unit 33 and the rear-side path changing unit 34. Inserted.

  The front contact portion 31 and the rear contact portion 32 are connected by a connecting portion 37. The connecting portion 37 is configured by bending a thin plate so as to have an M shape. And the connection part 37 is comprised so that it may receive the external force by the operator and tool which narrow the space | interval of the front surface side contact part 31 and the said rear surface side contact part 32, and may be elastically displaced in the direction which adjoins mutually. Yes. As shown in FIG. 9, the connecting portion 37 has a basic state in which it is not elastically displaced. At this time, the distance between the surface facing the front wall 11b of the front surface contact portion 31 and the surface facing the rear wall of the rear surface 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 or slightly wider than the interval 30a. The front side path changing unit 33 and the rear side path changing unit 34 are brought close to each other until they can be inserted from the opening 11d between the front wall 11b and the rear wall 11c, and the distance between the front wall 11b and the rear wall 11c is determined. It will be in the state which has the narrow 2nd space | interval 30b. That is, the connecting portion 37 relatively displaces the position of the rear surface side contact portion 32 with respect to the front surface side contact portion 31. In other words, the position of the front surface side contact portion 31 with respect to the rear surface side contact portion 32 is relatively displaced.

In the cord guide member 17c in the basic state, the distance between the front-side path changing unit 33 and the rear-side path changing unit 34 is the same as or slightly wider than the first interval 30a. For this reason, it is difficult to insert the code guide member 17c from 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 are displaced in the direction close to each other by an external force, so that the front side The interval between the route changing unit 33 and the rear surface side route changing unit 34 is set to a second interval 30b that is narrower than the first interval 30a. Of course, the interval between the outer surface of the front-side path changing unit 33 and the outer surface of the rear-side path changing unit 34 may be narrower than the first interval 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 path changing unit 33 and the rear side path changing unit 34 are displaced in a direction in which the second interval 30b is enlarged. The code guide member 17c is abutted against the inner surface of the front wall 11b while the opposed surface of the front surface abutting portion 31 is elastically biased, and the opposed surface of the rear surface abutting portion 32 is the inner surface of the rear wall 11c. It changes to the state contact | abutted in the state elastically urged by. As a result, the front side path changing unit 33 is fitted into the opening 36 of the front wall 11b, and the rear side path changing unit 34 is fitted into the opening 36 of the rear wall 11c. The code guide member 17c is disposed in a fixed state in the head box 11.

  In this way, the code guide member 17c is attached to the head box 11 with the gap between the front wall 11b and the rear wall 11c of the head box 11 increased, or from the opening end of the longitudinal end of the head box 11 to the center portion. It is not necessary to slide the inside of the head box 11 until it is attached. In this respect, the cord guide member 17c can be attached to the inside of the head box 11.

  As shown in FIGS. 10 and 11, the front-side path changing unit 33 and the rear-side path changing unit 34 are provided with a cylindrical part 38 whose upper and lower surfaces are open. In the cylindrical portion 38, the opening on the lower surface is a lead-out inlet on the front side and the rear side of the second lifting / lowering cord 15b, and the lead-out inlet is located so as to protrude with respect to the front wall 11b and the rear wall 11c. The cylindrical portion 38 includes a pair of spaced apart and 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. It consists of A pulley 39 serving as a guide support portion for supporting the first elevating portion 15y and the second elevating portion 15z of the second elevating cord 15b is disposed in a space portion constituted by the rotation supporting wall 38a and the rising wall 38d. The rotation shaft 39a of the pulley 39 is rotatably supported by a support recess 38b disposed on the opposite rotation support wall 38a. The pulley 39 changes the path of the second lifting / lowering cord 15b hanging 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 a plane parallel to the front wall 11b and the rear wall 11c of the rotation support wall 38a and is perpendicular to the vertical plane 38c perpendicular to the pair of rotation support walls 38a. Are also arranged to intersect. That is, the rotation shaft 39a is disposed obliquely with respect to the pair of rotation support walls 38a. Further, the pulley 39 is arranged in the cylindrical portion 38 so as to be biased in a direction close to the guide passage 41 in the longitudinal direction of the head box 11, and a wider space on the side opposite to the guide passage 41 is a second lifting / lowering cord. It is set as the insertion part of 15b. The pulley 39 supports the load of the bottom rail 14 while guiding the second elevating cord 15b.

  The direction of the second lifting / lowering cord 15 b depending from the head box 11 is changed into the head box 11 by the pulley 39. On the back side of the front-side contact portion 31 and the rear-side contact portion 32, a guide passage 41 through which the second elevating cord 15b whose direction is changed toward the inside of the head box 11 by the pulley 39 is inserted. ing. The pulley 39 changes the route of the second lifting / lowering cord 15 b toward the guide passage 41.

As shown in FIGS. 10 and 12, the guide passage 41 is a space that connects the cylindrical portion 38 in which the pulley 39 is disposed and the inside of the head box 11, and is oblique to the front wall 11b and the front wall 11b. It extends to. The guide passage 41 includes a first entrance 41a on the pulley 39 side, and a second entrance 41b on the inner side of the head box 11, for example, on the side close to the stopper 19. As shown in FIGS. 12 and 13, in order to pass the second lifting / lowering cord 15b through the guide passage 41, it is inserted into the tubular portion 38 from the lower surface of the tubular portion 38, that is, the slat 12 side, and then the first doorway 41a is inserted. For this reason, the 1st entrance 41a is opened largely so that the front-end | tip part of the 2nd raising / lowering cord 15b may become easy to insert. 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 provided between the pulley 39 and the first doorway 41a to guide the tip of the second lifting / lowering cord 15b from the pulley 39 to the first doorway 41a.

  Further, a guide roller 43 as a guide portion of the second doorway 41 b that guides the second lifting / lowering cord 15 b to the stopper 19 is disposed inside the head box 11 at the second doorway 41 b.

  As shown in FIGS. 10 and 11, the front-side path changing unit 33 and the rear-side path changing unit 34 are fitted into the openings 36 of the front wall 11b and the rear wall 11c, and further, the front wall 11b and the rear wall 11c. Is projected outward. A cover 46 is attached to the front side path changing unit 33 and the rear side path changing unit 34 from the outside of the front wall 11b and the rear wall 11c in a state of being fitted in the opening 36. The cover 46 includes 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 a side wall portion 46b provided opposite to the side edge of the main surface portion 46a. And an upper surface portion 46c for closing 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 order to expose the outlet of the cylindrical portion 38 in the direction of the slat 12 and through which the second elevating cord 15b enters and exits.

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

  The cover 46 is inserted from the upper surface of the cylindrical portion 38 at the lower surface portion having an opening. Then, the cover 46 is inserted until the guide rail 46d is engaged with the mounting groove 38e and the protrusion 38f is engaged with the recess 46e. At the time of assembly, the front end portion of the second lifting / lowering cord 15b is inserted into the head box 11 with the cover 46 attached to the front side path changing unit 33 and the rear side path changing unit 34. The inner surface of the main surface portion 46a of the cover 46 includes a guide wall 47 as a guide portion whose tip is cut out in an arc shape. Here, two guide walls 47 are provided in parallel, and are formed such that the lower side is low and the upper side is high. The front end surfaces of the two guide walls 47 form a concave curved surface and serve as a guide portion that guides the front end portion of the second lifting / lowering cord 15b to the first doorway 41a. As shown in FIG. 13, the tip of the second lifting / lowering cord 15b inserted from the lower side abuts against the guide wall 47 when it passes through the pulley 39, and is guided by the concave curved surface so that the traveling direction is 90%. It is bent and guided to the first doorway 41a. The leading end portion of the second lifting / lowering 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 ° along the curved surface. As shown in FIG. 10, the inner surface of the main surface portion 46 a presses the end portion of the rotation shaft 39 a of the pulley 39.

  As shown in FIG. 8, the cord guide member 17 c disposed inside the head box 11 is further provided with warp yarns 13 a of the ladder cord 13 between the front side path changing unit 33 and the rear side path changing unit 34. A support member 51 to be supported is disposed. The support member 51 has two side walls 51 a located opposite to each other in the longitudinal direction of the head box 11. The opposing side wall 51a has a bearing portion 53 formed of a recess that rotatably supports the drum 52 to which the two warp yarns 13a of the ladder cord 13 are fixed.

  The drum 52 includes a cylindrical main body 52a and a shaft 52b that protrudes from the opposite side surfaces of the main body 52a. The shaft portion 52b includes a non-circular shaft hole 52c. A shaft for rotating the drum 52 having the same cross-sectional shape as the shaft hole 52c is inserted into the shaft hole 52c. A cylindrical shaft portion 52 b protruding from the side surface is supported by the bearing portion 53. The tip of the warp 13a of the ladder cord 13 is locked in a locking groove 52d formed on the outer peripheral surface of the main body 52a.

  As shown in FIGS. 14 and 15, the distal end portion of the side wall 51 a includes a notch portion 57. Engagement protrusions 57a that protrude inward with respect to the front wall 11b and the rear wall 11c are formed at the front ends of the front wall 11b and the rear wall 11c. The notch 57 is engaged with an engagement protrusion 57a formed at the front end of the front wall 11b and the rear wall 11c.

  The bottom plate 51b is formed with a through hole 54 having a longitudinal axis in the front-rear direction. A positioning projection 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 having the same shape as the through hole 54 formed in the bottom plate 11 a of the head box 11. Furthermore, the bulging part 58 is formed in the side wall 51c facing the front wall 11b and the rear wall 11c. When the bulging portion 58 is disposed between the front surface side route changing portion 33 and the rear surface side route changing portion 34, the bulging portion 58 presses the end of the rotating shaft 39 a of the pulley 39.

As shown in FIGS. 10 and 14, when the support member 51 is inserted between the front-side path changing unit 33 and the rear-side path changing unit 34 of the cord guide member 17 c arranged inside the head box 11. The positioning projection 56 is fitted and positioned in the insertion hole 55 of the bottom plate 11a. At the same time, the support member 51 restricts the front side path changing unit 33 and the rear side path changing unit 34 from being displaced in a direction away from the front wall 11b and the rear wall 11c. That is, the support member 51 functions as a restricting member that restricts the front-side contact portion 31 and the rear-side contact portion 32 from being displaced in a direction narrower than the first interval 30a. Further, the bulging portion 58 presses the rotation shaft 39 a of the pulley 39 toward the cover 46. The rotation shaft 39 a is suppressed from being displaced in the axial direction by being sandwiched between the bulging portion 58 and the inner surface of the main surface portion 46 a of the cover 46. Then, the warp 13 a of the ladder cord 13 is suspended from the drum 52 attached to the bearing portion 53 through the through hole 54 and the insertion hole 55.
The code guide member 17c is an integrally molded product. That is, the front surface side contact portion 31, the rear surface side contact portion 32, the front surface side route changing portion 33, the rear surface side route changing portion 34, and the connecting portion 37 are configured integrally, and with respect to the code guide member 17c, The cover 46, the pulley 39, and the guide roller 43 are separate members.

[Configuration of Rolling Member 17d]
As shown in FIGS. 4 and 16, the rolling member 17 d is disposed adjacent to the stopper 19 on the cord guide member 17 c side. The rolling member 17 d includes an upper support portion 63, a lower support portion 64, and a side support portion 65 that connects 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 disposed therebetween. A space for rotatably supporting the two rollers 62 is formed between the upper support 63 and the lower support 64. Two pairs of shaft holes 63a and 64a for rotatably supporting the rotation shaft of the roller 62 are disposed at positions where the upper support portion 63 and the lower support portion 64 face each other. The support shaft of the roller 62 is supported by the shaft holes 63a and 64a. In the rolling member 17d, one roller 62 is disposed on the side close to the rear wall 11c.

  The side support portion 65 includes a pair of attachment pieces 66 for attaching to the end portion of the stopper 19. The pair of attachment pieces 66 includes protrusions 66c that protrude inward at the tip portions. A support piece 66 b is formed inside the pair of attachment pieces 66 so as to be separated from the attachment pieces 66. On the other hand, the end surface on the insertion end 19a side in the longitudinal direction of the stopper 19 includes a pair of connection pieces 66a connected to the rolling member 17d. The connection piece 66a is formed to be slightly narrower than the interval between the pair of attachment pieces 66, and includes a protrusion 66d facing outward at the tip. The rolling member 17d is a projection formed between the pair of attachment pieces 66, and between the pair of attachment pieces 66 and the support piece 66b, by inserting the pair of connection pieces 66a. By engaging the portions 66c and 66d, the stopper 19 is attached to the end surface on the insertion end 19a side. The pair of attachment pieces 66 and the pair of support pieces 66b have the same height at the tip, and the end face of the stopper 19 is also abutted against the end face on the delivery end 19b side in the longitudinal direction of the stopper 19. It is configured not to rattle against.

The rolling member 17d has a symmetrical shape in the vertical and horizontal directions, and a positioning portion 67 composed of a protrusion is provided on the upper surface of the upper support portion 63 and the lower surface of the lower support portion 64. The positioning part 67 is engaged with a positioning hole 67 a formed in the bottom plate 11 a of the head box 11. The rolling member 17d can be attached to a predetermined position of the head box 11 regardless of whether it is up or down simply by changing the attachment position of the roller 62.
The stopper 19 has an end on the side of the rolling member 17d serving as the insertion end 19a of the lifting cords 15a and 15b, and an end on the side of the guide member 20 described below serving as the sending end 19b.

[Configuration of Guide Member 20]
As shown in FIGS. 4 and 16, a guide member 20 for guiding the first elevating cord 15a from the support member 17b along the rear wall 11c is disposed on the support member 17b side of the stopper 19. The guide member 20 is a member having the same configuration as the rolling member 17d. The guide member 20 is mounted adjacent to and adjacent to the delivery end 19b of the stopper 19 upside down without changing the mounting position of the rolling member 17d and the roller 62. That is, the rotating member 17d is attached to the head box 11 with the upper support portion 63 on the lower side and the lower support portion 64 on the upper side. Further, when the position of the roller 62 with respect to the rolling member 17d is changed, it can be used as it is as the guide member 20. The roller 62 as the guide support portion is positioned on the rear wall 11c side. As a result, the first elevating cord 15a from the support member 17b is placed along the rear wall 11c by the roller 62 of the guide member 20, and is turned by the roller 62 of the turning member 17d and inserted into the insertion end 19a of the stopper 19. That is, the second elevating cord 15b is avoided on the rear wall 11c side with respect to the stopper 19 between the guide member 20 and the turning member 17d. Needless to say, the roller 62 may be disposed in each of the two pairs of shaft holes 63a and 64a so that the rolling member 17d can be used as the guide member 20 in any of the vertical and horizontal directions.

[Configuration of Support Members 17a and 17b]
As shown in FIGS. 17 and 18, the support members 17 a and 17 b have two side walls 71 that are located opposite to each other in the longitudinal direction of the head box 11. The opposing side wall 71 has a bearing portion 72 formed of a concave portion that rotatably supports the drum 52 to which the two warp yarns 13a of the ladder cord 13 are fixed. The shaft portion 52b is rotatably supported by the bearing portion 72. The tip of the side wall 71 includes a notch 73. The notch 73 is engaged with an engaging protrusion 57a formed at the front ends 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, and therefore the details are omitted.

  The bottom plate 74 is formed with a long hole-shaped through hole 75 corresponding to the insertion hole 55 and having a longitudinal 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 an annular shape so as to surround the through hole 75, for example. 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 the side wall 79 facing the front wall 11b and the rear wall 11c. At a position along the through hole 75, a support roller 80 is disposed along the long axis of the through hole 75. The support roller 80 supports the first elevating cord 15 a that is suspended and guides it in the direction of the stopper 19. The shaft of the support roller 80 is supported in the vicinity of the bulging portion 78. Further, the warp thread 13 a of the ladder cord 13 is also inserted into the through hole 75 and the insertion hole 55.

  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 the window frame 100 to be attached, and shields the solar radiation of the light transmitting region 101 in the window frame 100. Specifically, the horizontal blind 10 is attached so as to cover the window frame 100 or hide the window frame 100. In this case, it is attached to the curtain box 103 arranged on the upper part of the window frame 100 inside the room with a ceiling. In this case, the horizontal width W1 of the horizontal blind 10 is set to be longer than the interval W2 between the vertical frames 100a and 100a of the window frame 100. 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, 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. As a result, the horizontal blind 10 covers the entire light transmitting region 101 of the window frame 100. The lower horizontal frame 100b and the bottom rail 14 may be positioned at the same height.

  In this case, the 1st raising / lowering cord 15a is located in the position along the vertical frames 100a and 100a of the window frame 100, or the outer side of the vertical frames 100a and 100a in the state in which the bottom rail 14 was lowered | hung. Therefore, in the fully closed state of the slat 12, light leakage from the through hole 22 becomes inconspicuous, and the light shielding property can be enhanced. Even if the through hole 22 is positioned 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 and 100a. The amount of light transmitted into the room in the shadows of the vertical frames 100a and 100a can be made less noticeable.

  When raising the slat 12 and the bottom rail 14, when the equalizer 18 is pulled downward, the bottom rail 14 rises so that the plurality of slats 12 are stacked on the bottom rail 14 in order from a position close to the bottom rail 14. . Further, when lowering the slat 12 and the bottom rail 14, if the equalizer 18 is slightly pulled down, the bottom rail 14 is lowered. As the bottom rail 14 is lowered, each of the plurality of slats 12 is also lowered. .

As shown in FIG. 20, since the second lifting / lowering cords 15b having the same strength extend on both side edges in the front-rear direction of the bottom rail 14 that are inside and outside the room with respect to the slat 12, Therefore, the balance in the short direction of the bottom rail 14 is improved. Thereby, it can suppress that the bottom rail 14 inclines in any direction of a room inner side or a room outer side. Thereby, when the bottom rail 14 moves up and down, the plurality of slats 12 supported by the ladder cords 13 stacked on the bottom rail 14 are also prevented from being swelled and stacked on the bottom rail 14. be able to.
Each slat 12 is rotated by rotating the drum 52 provided in the support members 17a, 17b, 51.

The horizontal blind 10 as described above can obtain the effects listed below.
(1) The front side path changing unit 33 and the rear side path changing unit 34 protrude from the front wall 11b and the rear wall 11c. Therefore, the first elevating part 15y hangs almost straight from the front side path changing unit 33, and the second elevating part 15z hangs almost straight from the rear side path changing part 34. Therefore, the friction between the front edge of the uppermost slat and the first elevating part 15y can be reduced. Further, the friction between the rear edge of the uppermost slat and the second elevating part 15z can be reduced. Thereby, it can suppress that the 2nd raising / lowering cord 15b cut | disconnects by friction.
(2) The 2nd raising / lowering cord 15b extended on the front side and the rear side is located facing the slat 12 therebetween. Therefore, it is possible to suppress the slats 12 from bulging and stacking so as to spill over the bottom rail 14.
(3) The code guide member 17c guides the second elevating cord 15b extending to the front side and the rear side by the front side path changing unit 33 and the rear side path changing unit 34. Therefore, the code guide member 17c can reliably guide the first lifting / lowering portion 15y of the second lifting / lowering cord 15b by the front-side path changing portion 33, and the second lifting / lowering portion 15z can be surely guided by the rear-side path changing portion 34. I can guide you.
(4) The front-side path changing unit 33 and the rear-side path changing unit 34 protrude with respect to the front wall 11b and the rear wall 11c, and the second lifting / lowering is performed during assembly work or replacement of the second lifting / lowering cord 15b. The tip portions of the first elevating part 15y and the second elevating part 15z constituting the cord 15b can be easily inserted into the head box 11. That is, since the second lifting / lowering cord 15b is not suspended from the bottom plate 11a of the head box 11, the slat 12 is less likely to become an obstacle when the front end portion is inserted from the front side path changing unit 33 and the rear side path changing unit 34. Become.
(5) The front side path changing unit 33 and the rear side path changing unit 34 protrude outward from the front wall 11b and the rear wall 11c, and accordingly, the front wall 11b and the rear wall 11c of the head box 11 , And the head box 11 can be downsized.

(6) Since the front side path changing unit 33 and the rear side path changing unit 34 are connected by the connecting unit 37 and become one part of the molded product, the number of parts as the horizontal blind 10 can be reduced. Assembly in the head box 11 is also facilitated.
(7) Since the connecting portion 37 is elastically displaceable, the opening of the head box 11 is reduced by narrowing the distance between the front surface side path changing portion 33 and the rear surface side path changing portion 34 when assembled inside the head box 11. 11d can be inserted. The front-side path changing unit 33 and the rear-side path changing unit 34 are automatically fitted into the openings 36 of the front wall 11b and the rear wall 11c by the elastic restoring force of the connecting part 37 and are exposed to the outside from the opening 36. Protruding. And the front side contact part 31 and the rear surface side contact part 32 are contact | abutted in the state elastically biased by each inner surface of the front wall 11b and the rear surface wall 11c. Therefore, the code guide member 17 c is accurately positioned at a predetermined position in the head box 11. Moreover, it attaches in the state which is hard to remove | deviate by elastically energizing with respect to the inner surface of the front wall 11b and the rear wall 11c.

(8) The support member 51 is disposed between the front side path changing unit 33 and the rear side path changing unit 34. Therefore, it is possible to restrict the front side path changing unit 33 from being displaced in a direction away from the front wall 11b and to restrict the rear side path changing unit 34 from being displaced in a direction away from the rear wall 11c.
(9) The support member 51 is provided with a drum 52 that supports the ladder cord 13 in a suspended manner. Therefore, the support member 51 can have two functions of a displacement limiting function of the front surface side path changing unit 33 and the rear surface side path changing unit 34 and a support function of the ladder cord 13.
(10) The front-side path changing unit 33 and the rear-side path changing unit 34 include a pulley 39, and the load of the bottom rail 14 can be supported by the second lift cord 15b engaging the pulley 39. The rotation shaft 39a of the pulley 39 is disposed obliquely with respect to the pair of rotation support walls 38a. Therefore, the protrusion amount with respect to the front wall 11b and the rear wall 11c of the front surface side path changing unit 33 and the rear surface side path changing unit 34 can be reduced. Both end portions of the rotation shaft 39a are sandwiched between the inner surface of the cover 46 and the bulging portion 58 of the support member 51, so that shakiness in the axial direction can be reduced.

(11) The front side path changing unit 33 and the rear side path changing unit 34 can be easily protruded from the front wall 11b and the rear wall 11c from the opening 36 of the front wall 11b and the rear wall 11c.
(12) The second elevating cord 15 b can be guided to the inside of the head box 11 by the guide passage 41.
(13) Since the first doorway 41a has the inclined guide surface 41c as the guide portion of the first doorway 41a, the tip of the second lifting / lowering cord 15b that has passed through the pulley 39 can be smoothly guided to the first doorway 41a. it can.
(14) Since the guide roller 43 is disposed at the second doorway 41b of the guide passage 41, the second elevating cord 15b can be smoothly guided toward the stopper 19.
(15) Since the guide wall 42 is erected between the pulley 39 and the first doorway 41a, the tip of the second lifting / lowering cord 15b can be smoothly guided from the pulley 39 to the first doorway 41a. it can.

(16) The 2nd raising / lowering cord 15b is comprised with one string-like member, and can reduce a number of parts.
(17) The holder 16 can suppress the position of the second lifting / lowering cord 15b from being shifted by engaging the intermediate portion 15x with the second groove 16d and pressing the intermediate portion 15x against the bottom surface of the bottom rail 14.

(18) Even if the front side path changing unit 33 and the rear side path changing unit 34 protrude from the openings 36 of the front wall 11b and the rear wall 11c, they are covered with the cover 46, so that the appearance design is deteriorated. Can be suppressed.
(19) When the horizontal blind 10 is assembled, the cover 46 is attached to the front-side path changing unit 33 and the rear-side path changing unit 34 for guiding the tip of the second lifting / lowering cord 15b into the head box 11. It is done in the state. At this time, the distal end portion of the second lifting / lowering cord 15b is inserted from the side of the pulley 39 of the front side path changing unit 33 and the rear side path changing unit 34. Since the guide wall 47 is provided on the inner surface of the cover 46, the distal end portion of the second lifting / lowering cord 15b is guided by the guide wall 47, and the course is naturally bent by 90 °, so that the first entrance 41a of the guide passage 41 is provided. Guided in the direction of Therefore, it is possible to easily perform the routing operation of the second lifting / lowering cord 15b.

In addition, the horizontal blind 10 as described above can be implemented with appropriate modifications as follows.
[Modification of the code guide member 17c]
As shown in FIG. 21, in the code guide member 17c, the guide portion provided at the second entrance 41b of the guide passage 41 may be a guide surface 43a instead of the guide roller 43. Thereby, the guide roller 43 becomes unnecessary and the number of parts can be reduced.
-Moreover, the code | guide 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 constituted by an integrally formed guide pin or the like is provided, and the second elevating cord 15b is guided by the guide surface formed on the outer peripheral surface of the guide portion. In such a case, since the pulley 39 is omitted, the number of parts can be reduced.
The front-side contact portion 31 and the front-side path changing portion 33, and the rear-side contact portion 32 and the rear-side path changing portion 34 are configured as separate parts and are combined with an adhesive or the like. Also good.
-The 2nd raising / lowering cord 15b may be the structure derived | led-out from the outer surface of the front wall 11b and the rear surface wall 11c, for example, the front surface side path | route change part 33 and the rear surface side path | route change part 34 are flush with the outer surface. The second lifting / lowering cord 15b may be derived from the front side path changing unit 33 and the rear side path changing unit 34.

[Modified example of connecting portion 37]
The front side path changing unit 33 and the rear side path changing unit 34 may not be connected by the connecting unit 37. In this case, after the front side path changing unit 33 is arranged on the inner surface of the front wall 11b and the rear side path changing unit 34 is arranged on the inner surface of the rear wall 11c, a regulating member such as a tension pin is attached to the front side path changing unit 33. And the rear-side path changing unit 34, the front-side path changing unit 33 may be pressed against the front wall 11b, and the rear-side path changing unit 34 may be pressed against the rear wall 11c. Further, an elastic body such as a coil spring or rubber is disposed between the front side path changing unit 33 and the rear side path changing unit 34 so that the front side path changing unit 33 and the rear side path changing unit 34 are separated from each other. It may be energized.

-The connection part 37 of the code | guide guide member 17c may not be the structure which can be elastically displaced. As shown in FIG. 22, for example, a link mechanism may be provided as a connecting portion 37 between the front side path changing unit 33 and the rear side path changing unit 34. As an example, this link mechanism includes a first arm 37a and a second arm 37b arranged so as to intersect with each other, and the intersection is rotatably supported by a pin or the like, and the whole has an X shape. Yes. The two end portions of the first arm 37a and the second arm 37b located at the front contact portion 31 are pivotally supported in the guide hole 37c formed by a long hole at the front contact portion 31. The two end portions located in the rear surface side contact portion 32 are pivotally supported by the guide surface 37c formed of a long hole in the rear surface side contact portion 32 so as to be rotatable. Thereby, the front surface side contact portion 31 and the rear surface side contact portion 32 are connected, and when inserted into the head box 11, the front surface side contact portion 31 and the rear surface side contact portion 32 are separated from each other by the second distance. It is inserted through the opening 11d of the head box 11 while being narrowed to 30b. Of course, the interval between the outer surface of the front-side path changing unit 33 and the outer surface of the rear-side path changing unit 34 may be narrower than the first interval 30a. And after inserting in the head box 11, the front side contact part 31 and the rear surface side contact part 32 are contact | abutted by the front wall 11b and the rear surface wall 11c manually. After this, a regulating member such as a support member 51, a tension pin or an elastic body is disposed between the front surface side contact portion 31 and the rear surface side contact portion 32. Thereby, the displacement of the front side path changing unit 33 in a direction away from the front wall 11b is restricted, and the displacement of the rear side path changing unit 34 in a direction away from the rear wall 11c is restricted.
The link mechanism is not limited to the configuration shown in FIG. 22, and may be a mechanism such as a pantograph whose overall shape contracts with a rhombus or a parallelogram.
-The connection part 37 is good also as a structure which can be displaced in the direction which the front side contact part 31 approaches and separates with respect to the front wall 11b, and the structure which the rear side contact part 32 does not displace. On the contrary, the connecting portion 37 may be configured to be displaceable in a direction in which the rear surface side contact portion 32 approaches and separates from the rear surface wall 11c, and the front surface side contact portion 31 may not be displaced. That is, the distance between the front contact portion 31 and the rear contact portion 32 only needs to change relatively.

[Modification of cover]
The cover 46 may be configured to omit the guide wall 47.
-It is good also as a structure which omits the cover 46. FIG.

The cover 46 only needs to be attached to at least one of the front side path changing unit 33 and the rear side path changing unit 34. When attaching the second lifting / lowering cord 15b to the horizontal blind 10, one end portion of the second lifting / lowering cord 15b is first placed on either the front side or the rear side of the cord guide member 17c arranged in the head box 11. It inserts from the 2nd entrance / exit 41b of one guide channel | path 41. FIG. Next, one end portion of the second lifting / lowering cord 15b passes through the pulley 39 and is exposed to the outside of the head box 11 from either the front side path changing unit 33 or the rear side path changing unit 34. Then, one end portion of the second lifting / lowering cord 15 b is suspended along the slat 12 and is turned to the bottom rail 14. Thereafter, one tip of the second lifting / lowering cord 15b is inserted into either the front-side path changing unit 33 or the rear-side path changing unit 34. At this time, the tip of the second lifting / lowering cord 15 b is guided by the guide wall 47 of the cover 46, and the course is naturally bent by 90 °, and is guided in the direction of the first doorway 41 a of the guide passage 41.
The guide wall 47 of the cover 46 functions when one end portion of the second lifting / lowering cord 15 b is inserted from the side of the pulley 39. When the second lifting / lowering cord 15b is routed as described above, one of the leading ends of the second lifting / lowering cord 15b is inserted from the side of the pulley 39, either the front side path changing unit 33 or the rear side path changing unit 34. Or one. Therefore, the cover 46 may be disposed only in the guide portion in which one end portion of the second lifting / lowering cord 15b is inserted from the side of the pulley 39.

[Modification of holder]
-The holder 16 may omit the 2nd groove | channel 16d with which the intermediate part 15x of the 2nd raising / lowering cord 15b engages.
[Modification of Support Member 51]
The support member 51 as a restricting member for restricting displacement of the front-side path changing unit 33 and the rear-side path changing unit 34 in a direction in which they are close to each other does not have a function of supporting the ladder cord 13 in a suspended manner. It is good also as a structure. In this case, the ladder cord 13 is suspended and supported by another member.
The support member 51 may not be disposed between the front side path changing unit 33 and the rear side path changing unit 34. In this case, as a restricting member for restricting displacement of the front-side path changing unit 33 and the rear-side path changing unit 34 in a direction close to each other, a pin member such as a tension pin is used as the front-side path changing unit 33 and the rear surface. What is necessary is just to set it as the structure spanned between the side path | route change parts 34. FIG.

[Modifications of Rotating Member 17d and Guide Member 20]
In the case where the rolling member 17d and the guide member 20 are shared, it is not necessary to change the position of the roller 62 if the rolling member 17d is turned upside down. As shown in FIG. 23, only one pair of shaft holes 63a and 64a may be provided. As a result, the structure can be simplified while reducing the number of the two pairs of shaft holes 63a and 64a to one pair while sharing the equipment of the rolling member 17d and the guide member 20.
The rolling member 17d and the guide member 20 may be configured such that a guide wall is erected in place of the roller 62 and the second elevating cord 15b is guided by a guide surface configured on a side surface of the guide wall. Thereby, the number of parts of the rolling 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 rolling member 17d.
The rolling member 17d and the guide member 20 do not need to include the positioning portion 67. Further, only one of the rolling member 17d and the guide member 20 may be provided.
-The rolling member 17d and the guide member 20 may be components having completely different shapes.

[Modification of lifting member]
-The 2nd raising / lowering cord 15b may be comprised by two by the front side and the rear side. In this case, one end of each lifting / lowering cord 15 b is fixed to the bottom rail 14.
The first lifting / lowering cord 15a may have the same configuration as the second lifting / lowering cord 15b. That is, it is good also as a structure extended along the raising / lowering direction to the front edge part of the room inner side of the slat 12, and the rear edge part of the room outer side instead of being inserted through the through-hole 22 of the slat 12. In this case, since the through hole 22 is unnecessary, the light shielding property of the horizontal blind 10 can be improved.
-You may make it provide the notch recessed part which the 2nd raising / lowering cord 15b engages in the front edge part and rear edge part of the slat 12. FIG.
-The 2nd raising / lowering cord 15b may be drooped in several places in the longitudinal direction between the 1st raising / lowering cords 15a of the head box 11. As shown in FIG. Moreover, the 2nd raising / lowering cord 15b does not need to be arrange | positioned in the center part of the longitudinal direction of the head box 11, and may be arrange | positioned in the intermediate position shifted | deviated to either one from the center part of the longitudinal direction.
-The 1st raising / lowering cord 15a and the 2nd raising / lowering cord may be a tape-shaped member instead of a string-shaped member.
[Other variations]
-The movement of the second lifting / lowering cord 15b can be suppressed without using the pico 13c or the annular member 13d. That is, an insertion portion through which the second lifting / lowering cord 15b is inserted is provided between the weft yarns 13b arranged vertically, and the second raising / lowering cord 15b is inserted into an insertion portion between the weft yarns 13b arranged vertically. Specifically, when the second lifting / lowering cord 15b is inserted into the insertion portion between the weft yarns 13b from one side to the other side, the second insertion cord 15b has the other insertion portion inserted into the next insertion portion that is spaced by about 5 to 7 steps. It is inserted from one side to the other. Thereby, it is not necessary to use the pico 13c and the annular member 13d, and the second elevating cord 15b is prevented from floating by the side edge portion of the slat 12 and the weft 13b of the ladder cord 13 without deteriorating the design. Is done.
-As the operation part, in addition to the one pole type with the equalizer 18 provided at the tip of the tilt pole 18a, the pole and the cord are separately attached, the slat 12 is opened and closed by turning the pole, and the bottom rail 14 is raised and lowered It may be a pole type operated by pulling a cord. Moreover, such an operation part may be located in the edge part side rather than the through-hole 22 of the slat 12. FIG.
The horizontal blind 10 may be an electric bride that raises and lowers the bottom rail 14 with an electric motor.
-A horizontal blind may be arrange | positioned between an inner window and an outer window. Moreover, you may arrange | position inside a translucent partition.
-As a solar shading device, besides a horizontal blind, it can be applied to a pleated screen.

DESCRIPTION OF SYMBOLS 11 ... Head box, 11a ... Bottom plate, 11b ... Front wall, 11c ... Rear wall, 11d ... Opening part, 12 ... Slat, 13 ... Ladder cord, 13a ... Warp, 13b ... Weft, 13c ... Pico, 13d ... Ring member, DESCRIPTION OF SYMBOLS 14 ... Bottom rail, 14a ... Front edge groove part, 14b ... Rear edge groove part, 15a ... 1st raising / lowering cord, 15a ... Elevating cord, 15b ... Elevating cord, 15b ... 2nd raising / lowering cord, 15x ... Middle part, 15y ... 1st Lifting part, 15z ... second lifting part, 16 ... holder, 16a ... main body part, 16b ... engaging part, 16c ... first groove, 16d ... second groove, 16e ... adjusting member, 16f ... engaging groove, 16g ... Recessed portion, 17a ... support member, 17b ... support member, 17c ... cord guide member, 17d ... turning member, 17e ... operation guide member, 18 ... equalizer, 18a ... tilt pole, 19 ... strike 19a ... insertion end, 19b ... delivery end, 20 ... guide member, 22 ... through hole, 30a ... first interval, 30b ... second interval, 31 ... front side contact portion, 32 ... rear side contact portion, 33: Front side path changing unit, 34 ... Rear side path changing unit, 36 ... Opening part, 37 ... Connecting part, 37a ... First arm, 37b ... Second arm, 37c ... Guide hole, 38 ... Cylindrical part, 38a ... rotating support wall, 38b ... supporting recess, 38c ... vertical surface, 38d ... rising wall, 38e ... mounting groove, 38f ... projection, 39 ... pulley, 39a ... rotating shaft, 41 ... guide passage, 41a ... first doorway, 41b ... second entrance / exit, 41c ... inclined guide surface, 42 ... guide wall, 43 ... guide roller, 43a ... guide surface, 46 ... cover, 46a ... main surface portion, 46b ... side wall portion, 46c ... upper surface portion, 46d ... guide rail 46e ... recess, 47 ... guide wall, 4 ... center line, 51 ... support member, 51a ... side wall, 51b ... bottom plate, 51c ... side wall, 52 ... drum, 52a ... main body part, 52b ... shaft part, 52c ... shaft hole, 52d ... locking groove, 53 ... bearing part , 54 ... Through-hole, 55 ... Insertion hole, 56 ... Positioning protrusion, 57 ... Notch, 57a ... Engaging protrusion, 58 ... Swelling part, 62 ... Roller, 63 ... Upper support part, 63a ... Shaft hole, 64 ... Lower support part, 64a ... Shaft hole, 65 ... Side support part, 66 ... Mounting piece, 66a ... Connection piece, 66b ... Support piece, 66c ... Projection part, 66d ... Projection part, 67 ... Positioning part, 67a ... Positioning hole 71 ... Side wall 72 ... Bearing part 73 ... Notch part 74 ... Bottom plate 75 ... Through hole 76 ... Positioning protrusion 77 ... Insertion hole 78 ... Swelling part 79 ... Side wall 80 ... Support Roller, 100 ... Window frame, 100a ... Vertical frame, 100b ... Horizontal frame, 101 ... Translucent area Area, 103 ... Curtain box.

Claims (15)

A headbox with a front wall and a rear wall;
A shielding member located below the head box;
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 path changing unit that changes the path of the elevating member hanging from the outer surface of the front wall into a path extending inside the head box;
A solar radiation shielding device comprising: a rear surface side path changing unit that changes a path of the elevating member hanging from the outer surface of the rear wall to a path extending inside the head box. The front side path changing unit and the rear side path changing unit are connected by a connecting part,
The solar radiation shielding device according to claim 1, wherein the connecting portion connects the front-side path changing unit and the rear-side path changing unit so as to be displaced with respect to the front-rear direction of the head box. The solar radiation shielding device according to claim 2, wherein the connecting portion is elastically displaceable with respect to a front-rear direction of the head box. The solar radiation shielding device according to claim 3, wherein the connecting portion displaces and projects the front-side path changing unit in the direction of the front wall, and displaces and projects the rear-side path changing unit in the direction of the rear wall. . A regulating member disposed between the front side path changing unit and the rear side path changing unit;
The restriction member restricts displacement of the front-side path changing unit in a direction away from the front wall and restricts displacement of the rear-side path changing unit in a direction away from the rear wall. The solar radiation shielding apparatus of any one of thru | or 4. A ladder cord suspended from the head box and rotatably supporting each of the shielding members;
The solar radiation shielding device according to claim 5, wherein the restriction member suspends and supports the ladder cord. Each of the said front surface side path | route change part and the said rear surface side path | route change part is provided with the guide support part which guides and supports the said raising / lowering member which goes in / out with respect to the said head box. The solar radiation shielding device described in 1. The head box includes an opening at a position where the elevating member hangs down in each of the front wall and the rear wall,
The solar radiation shielding according to claim 7, wherein each of the front side path changing unit and the rear side path changing unit is fitted into the opening and protrudes outward with respect to each of the front wall and the rear wall. apparatus. The solar radiation shielding apparatus according to claim 7, further comprising a guide passage that guides the elevating member from the guide support portion to the inside of the head box. The guide passage includes a first doorway located on a side closer to the guide support part, and a second doorway located on a side farther than the first doorway with respect to the guide support part,
The solar radiation shielding device according to claim 9, wherein the second doorway includes a guide portion that guides the elevating member guided into the head box. A headbox with a front wall and a rear wall;
A shielding member located below the head box;
An elevating member that is suspended from each of the front wall side and the rear wall side and elevates the shielding member;
A front-side lead-out entrance through which the elevating member that projects from the front wall and hangs down from the front wall side enters and exits the head box;
A solar radiation shielding device, comprising: a rear-surface-side outlet through which the elevating member that projects from the rear-surface wall and hangs down from the rear-surface wall side enters and exits the head box. Further comprising a bottom rail supported by the elevating member so as to be movable up and down;
The solar radiation shielding device according to claim 11, wherein the elevating member is configured by a member that is suspended from the front-side outlet and the rear-side outlet and is turned around the bottom rail. The bottom rail includes a holder for holding the elevating member,
The solar radiation shielding device according to claim 12, wherein the holder includes a groove with which the elevating member is engaged. At least one of a front-side protruding portion that protrudes from the front wall and constitutes the front-side outlet and a rear-side protruding portion that protrudes from the rear wall and constitutes the rear-side outlet is a cover. It is covered. The solar radiation shielding apparatus of any one of Claims 11 thru | or 13. Each of the front surface side protruding portion and the rear surface side protruding portion includes a guide support portion that guides and supports the elevating member at each of the front surface side outlet port and the rear surface side outlet port,
The solar radiation shielding apparatus according to claim 14, wherein the cover includes a guide portion that guides a tip end portion of the elevating member that has entered from the outside of the head box and passed through the guide support portion in a direction toward the inside of the head box.