JP2022009579A - Solar radiation shielding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar radiation shielding device that can improve shading performance.

SOLUTION: A head box 11 comprises a first support member 17b, an operation guide member 17e, an operation part 18, a stopper 19, a turning member 17d, and a cord guide member 17c, in this order. The turning member 17d turns a first lifting cord 15a, which extends from the first support member 17b to the turning member 17d, from the turning member 17d to the stopper 19. The operation guide member 17e leads the first lifting cord 15a and a second lifting cord 15b, which are sent out from the stopper 19, out of the head box 11 so that they can be moved and operated in a direction to raise a shielding member. Between the operation guide member 17e or the first support member 17b and the operation guide member 17e, an avoidance guide 121 is provided that guides the first lifting cord 15a extending from the first support member 17b to the turning member 17d to avoid the stopper 19.

SELECTED DRAWING: Figure 4

COPYRIGHT: (C)2022,JPO&INPIT

Description

The present invention relates to a solar shading device.

The horizontal blind includes a plurality of slats supported by the ladder cord and a plurality of elevating cords for raising and lowering the plurality of slats. The plurality of elevating cords are arranged, for example, at the central portion in the longitudinal direction of the slats and on both ends in the longitudinal direction of the slats, and are inserted through a through hole formed in the central portion in the anteroposterior direction in each of the plurality of slats. There is. Then, the plurality of slats are moved up and down by operating the plurality of elevating cords, and the plurality of slats are tilted all at once by operating the ladder cord (see Patent Document 1).

Japanese Unexamined Patent Publication No. 2014-205992

However, in the horizontal blind, it is required to make the light leakage from the through hole through which the elevating cord formed in each slat is inserted inconspicuous. In the horizontal blind of Patent Document 1, since the operation unit is arranged at one end in the longitudinal direction of the head box, the elevating cord cannot be hung from a position close to one end of the head box by the amount of the operation unit. Therefore, the through hole through which the elevating cord is inserted cannot be arranged close to one end of the slats. As a result, the light leakage from the through hole becomes conspicuous because the through hole is closer to the center side from one end of the slats.

Even in a pleated screen using a pleated cloth as a shielding material, it is required to suppress light leakage from a through hole formed in the screen in order to insert an elevating cord.
The present invention has been made to solve the above problems, and an object of the present invention is to provide a solar shading device capable of making light leakage from a through hole of a slats inconspicuous.

The solar shading device for solving the above-mentioned problems includes a head box for hanging the first elevating member and the second elevating member, a shielding member for ascending and descending by elevating and lowering the first elevating member and the second elevating member. A control shaft member suspended from the head box and rotatably supporting each of the shielding members, and a control shaft member having a support portion for supporting the ladder cord in the head box and rotating the support portion. The head box is provided with a first guide unit, a rotation control unit, an elevating control unit, a turning unit, and a second guide unit in this order from one end portion to the intermediate portion in the longitudinal direction thereof. The first guide unit guides the first elevating member to hang down, the second guide unit guides the second elevating member to hang down, and the rotation control unit guides the shield member. The control shaft member is rotated in order to rotate the first elevating member, and the turning portion extends the first elevating member extending from the first guide portion toward the turning portion toward the elevating control portion from the turning portion. The elevating control unit is rotated, and the first elevating member rotated by the turning unit and the second elevating member extending from the second guide unit toward the elevating control unit are inserted and inserted. The first elevating member and the second elevating member are sent out to the lead-out unit that is sent out of the head box, and the first elevating member and the second elevating member are allowed to move to raise the shielding member, and The restricted state for restricting the movement of lowering the shielding member and the releasing state for releasing the movement restriction for lowering the shielding member are switched, and the lead-out unit sets the first elevating member and the second elevating member to the above. The shielding member is led out of the head box so as to be movable up and down, and the rotation control unit or the first guide unit and the rotation control unit extend from the first guide unit toward the rotation unit. The first elevating member is provided with an avoidance guide unit that guides the elevating member so as to avoid the elevating control unit.

In the solar radiation shielding device, the avoidance guide unit causes the first elevating member extending from the first guide unit toward the turning portion to avoid the elevating control unit and follow the rear wall of the head box. It may be configured to guide.

In the solar radiation shielding device, the avoidance guide unit causes the first elevating member extending from the first guide unit toward the turning portion to avoid the elevating control unit and run along the front wall of the head box. It may be configured to guide.

In the solar radiation shielding device, the avoidance guide unit guides the first elevating member extending from the first guide unit toward the turning unit so as to pass above the rotation control unit and avoid the elevating control unit. It may be configured to do so.

In the solar radiation shielding device, the avoidance guide unit passes the first elevating member extending from the first guide unit toward the turning portion under the rotation control unit and avoids the elevating control unit. It may be configured to guide.

In the solar radiation shielding device, the avoidance guide unit guides the first elevating member extending from the first guide unit toward the turning unit to pass through the rotation control unit and avoid the elevating control unit. It may be configured in.

In the solar radiation shielding device, the avoidance guide unit may be integrated with the rotation elevating control unit.
In the solar radiation shielding device, the avoidance guide unit may be separate from the rotation elevating control unit.

The solar radiation shielding device for solving the above-mentioned problems includes a head box for hanging the first elevating member and the second elevating member, and a shielding member for ascending and descending by elevating and lowering the first elevating member and the second elevating member. The head box is provided with a first guide portion, an elevating member lead-out portion, an elevating control portion, a turning portion, and a second guide portion in this order from one end portion in the longitudinal direction to the intermediate portion. The 1 guide portion guides the first elevating member to hang down, and the second guide portion guides the second elevating member to hang down, and the first guide portion guides the second elevating member to the turning portion. The first elevating member extending toward the head is positioned on the wall surface of the head box opposite to the wall surface on which the elevating member lead-out portion is provided, and the first elevating member is rotated from the turning portion toward the elevating control portion to elevate the elevating member. In the control unit, the first elevating member rotated by the turning unit and the second elevating member extending from the second guide unit toward the elevating control unit are inserted into the control unit, and the first elevating member inserted into the control unit. The second elevating member is sent out to the elevating member lead-out portion, the first elevating member and the second elevating member are allowed to move to raise the shielding member, and the movement to lower the shielding member is restricted. The restricted state is switched between the restricted state and the released state in which the movement restriction for lowering the shielding member is released, and the elevating member leading unit can operate the shielding member up and down and move the first elevating member and the second elevating member. It is led out to the outside of the headbox.

The solar radiation shielding device for solving the above-mentioned problems includes a head box for hanging the first elevating member and the second elevating member, and a shielding member for ascending and descending by elevating and lowering the first elevating member and the second elevating member. The head box is provided with a first guide portion, an elevating member lead-out portion, an elevating control portion, a turning portion, and a second guide portion in this order from one end portion in the longitudinal direction to the intermediate portion. The 1 guide portion guides the first elevating member to hang down, the second guide portion guides the second elevating member to hang down, and the turning portion guides the first elevating member to hang down. The first elevating member extending from the turning portion toward the turning portion is rotated from the turning portion toward the elevating control unit, and the elevating control unit is rotated by the turning portion with the first elevating member and the first elevating member. The second elevating member extending from the guide portion toward the elevating control unit is inserted, and the inserted first elevating member and the second elevating member are sent out to the elevating member lead-out unit to raise and lower the first elevating member. A restricted state in which the member and the second elevating member allow movement in a direction for raising the shielding member and restricting movement in a direction for lowering the shielding member, and movement regulation in a direction for lowering the shielding member. The elevating member leading-out unit leads 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.

In the solar radiation shielding device, the first elevating member may be configured so as to avoid the elevating control unit between the first guide unit and the turning unit.
In the solar radiation shielding device, the turning unit may be integrally attached to the elevating control unit.

The solar radiation shielding device may further include a third guide unit between the first guide unit and the elevating control unit to guide the first elevating member extending from the first guide unit to the turning unit. 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 third guide portion and the turning portion.

In the solar radiation shielding device, the third guide portion may be configured to 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 solar radiation shielding device, at least one of the turning portion and the third guide portion may be configured to include a positioning portion for positioning with respect to the head box.

In the solar radiation shielding device, the turning portion and the third guide portion are parts having the same shape, and may be configured to be arranged upside down or left and right with respect to the head box.

In the solar radiation shielding device, the head box may be configured such that a cap member is arranged at one end thereof, and the cap member is provided with the first guide portion integrated with the cap member.

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

In the solar radiation shielding device, the cap member includes a closed surface that closes one end thereof 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 portion that rotatably supports a shaft portion on one side surface of the drum, and the drum is rotatably supported on either the closed surface or the other side surface of the drum. The support protrusion may be provided, and the other side may be provided with a shaft hole to which the support protrusion is engaged.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a solar radiation shielding device capable of making the light leakage from the through hole of the slats inconspicuous.

Front view of the horizontal blind in one embodiment. A side view of a horizontal blind in one embodiment. Top view of the slats used for the horizontal blinds in one embodiment. The plan 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 elevating cord and the ladder cord at both ends in the longitudinal direction of the horizontal blind in one embodiment, and (b) is the first in the central portion in the longitudinal direction of the horizontal blind in one embodiment. 2 Side view showing the elevating cord and the ladder cord. The perspective view which shows the state which the holder is attached in the central part in the longitudinal direction of a bottom rail. An exploded perspective view of the internal structure of the headbox. An exploded perspective view showing the mutual relationship between the head box, the cord guide member, the support member, and the cover. A side view showing a state in which the connecting portion of the cord guide member is bent inward and a state in which the connecting portion is mounted in the head box. The main part plan view which shows the relationship between the cord guide member and the 2nd elevating cord. The perspective view which shows the guide part and a cover. Perspective view of the code guide member. The front view of the main part which shows the relationship between the 2nd elevating cord and the guide part of a cover. An exploded perspective view showing the relationship between the headbox, the cord guide member, and the support member. The side view which shows the state which arranges the support member with respect to the code guide member arranged in a head box. An exploded perspective view showing a stopper, a turning member, and a guide member. An exploded perspective view showing a support member and a drum of a ladder cord. An exploded perspective view showing the relationship between the head box and the support member. The front view which shows the relationship between the horizontal blind and a window frame in one Embodiment. A side view of a main part showing a state in which slats are stacked on a bottom rail in a horizontal blind in one embodiment. The perspective view which shows the modification of the code guide member. The perspective view which shows the deformation example of the connecting part in a cord guide member. The perspective view which shows the deformation example of a turning member and a guide member. An exploded perspective view of a cord guide member so that the second elevating cord hangs down from the bottom surface of the head box. A perspective view of a main part showing a modified example in which a drum for supporting a ladder cord and a support roller for supporting an elevating cord are arranged on a cap member of a head box. 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 head box along the rear wall of the elevating cord by the operation guide member, and (b) is a cross-sectional view thereof. (A) is a plan view of the internal structure of the head box along the rear wall of the elevating cord by the guide member, and (b) is a cross-sectional view thereof. (A) is a plan view of the internal structure of the head box in which the elevating cord is placed along the front wall by the operation guide member, and (b) is a cross-sectional view thereof. (A) is a plan view of the internal structure of the head box 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 head box along the rear wall of the elevating cord by the guide member, and (b) is a cross-sectional view thereof. (A) is a plan view of the internal structure of the head box 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 head box in which the elevating cord penetrates the operation guide member, and (b) is a cross-sectional view thereof. The plan view of the internal structure of the head box which arranged 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 a weft located on the intermediate portion side of the head box from the first elevating cord through which the through hole of the slat is inserted is positioned on the end side of the slat from the first elevating cord. , (B) is a front view showing a state in which the weft located on the end side of the slat from the first elevating cord is located on the intermediate portion side of the head box from the first elevating cord. Top view of a slat with a communication section at the side edge. Top view of a slat with a communication section at the trailing edge. Top view of a slat with communication on the leading and trailing edges. Perspective view of a steel headbox. (A) A cross-sectional view taken along the line aa of FIG. 39, (b) is a cross-sectional view of a head box in which an opening and an insertion hole are connected to form a continuous hole. A perspective view of an aluminum headbox. (A) A cross-sectional view taken along the line aa of FIG. 41, (b) is a cross-sectional view of a head box in which an opening and an insertion hole are connected to form a continuous hole. FIG. 3 is a perspective view showing an example in which the positions of the opening and the insertion hole are shifted in the longitudinal direction of the head box. (A) is a perspective view of the operation guide member, and (b) is a plan view showing the internal structure of the head box. (A) is a front view of the horizontal blind, (b) is a plan view showing the internal structure of the head box, and (c) is a side view of the horizontal blind.

Hereinafter, the horizontal blind in one 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 a mounting portion such as a ceiling, a window frame, and a curtain box, and a plurality of slats 12 as shielding members for shielding sunlight. There is. Further, the horizontal blind 10 has three ladder cords 13 that support a plurality of slats 12 so as to be tiltable, a bottom rail 14 located below the slats 12 in the lowermost stage, and one end of the bottom rail 14. It includes a first elevating cord 15a as a first elevating member to be connected and a second elevating cord 15b as a second elevating member. Then, the first elevating cord 15a and the ladder code 13 are arranged at each of both ends in the longitudinal direction of the slat 12, and the second elevating cord 15b and the ladder code 13 are arranged at the intermediate portion in the longitudinal direction of the slat 12. ing.

The slats 12 are formed of a synthetic resin plate, a metal plate such as aluminum or stainless steel, and are formed in the shape of an elongated rectangular thin plate, and the upper surface portion has an arcuate surface. The slats 12 may be formed of a wooden board. The plurality of slats 12 have slats 12 arranged along the elevating 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 as to be tilt-adjustable. Below the bottom slat 12, a bottom rail 14 having substantially the same length as the slat 12 is arranged.

The bottom rail 14 functions as a weight member when the plurality of slats 12 are maintained in a lowered state, and is made of a metal material such as SECC. The bottom rail 14 has substantially the same length in the longitudinal direction and width in the lateral direction 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 elevating cord 15a and the second elevating cord 15b pulled out from the head box 11, and is suspended from the head box 11 by the first elevating cord 15a and the second elevating cord 15b. ..

As shown in FIG. 3, in each of the plurality of slats 12 constituting the slat group, both ends of the slat 12 in the longitudinal direction are in the central portion in the anteroposterior direction, which is the lateral direction, and the long side is in the lateral direction. A rectangular through hole 22 is arranged. A first elevating cord 15a is inserted through each of the through holes 22. The positions where the through holes 22 are arranged are as close to both ends as possible, and the length from the through holes 22 to the tip is such that when supported by the ladder cord 13, the portion beyond the through holes 22 is due to its own weight. It is said that it does not bend. Further, in the central portion of the slat 12 in the longitudinal direction, the second elevating cord 15b is arranged at the side edges of the slat 12 facing each other in the front-rear direction. The slat 12 is not formed with a through hole necessary for inserting the second elevating cord 15b. In the central portion of the slat 12 in the longitudinal direction, the above-mentioned through hole is not formed, so that high light-shielding property is ensured.

As shown in FIG. 4, the horizontal blind 10 manually opens and closes the slats 12 and raises and lowers the bottom rail 14, and inside the head box 11, four raising and lowering cords 15a and 15b are headed by guide members. It is aggregated at one end of the box 11 in the longitudinal direction. Specifically, the first elevating 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 as the first guide portion, and the inside of the head box 11 is guided inside the head box 11 on the left side in FIG. It extends from the end to the right end. Further, the first elevating cord 15a on the right side in FIG. 4 is guided from the outside of the head box 11 into the head box 11 by the support member 17b as the first guide portion, and the inside of the head box 11 is guided to the inside of the head box 11 at the end portion on the right side in FIG. It extends from the direction toward the central part in the longitudinal direction. The second elevating cord 15b located at the center of the head box 11 in the longitudinal direction is guided into the head box 11 from the outside of the head box 11 by the cord guide member 17c as the second guide portion, and is longitudinally inside the head box 11. It extends to the right from the center of the direction.

The tilt pole 18a as an operation unit for raising and lowering the bottom rail 14 and the equalizer 18 provided at the tip of the tilt pole 18a are located inside the support member 17b so as to be on the central side in the longitudinal direction of the head box 11. .. Therefore, the first elevating cord 15a on the right side in FIG. 4 extends from the end portion on the right side in FIG. 4 of the head box 11 toward the left side, and then the turning member 17d as a turning portion makes the head box 11 Wrap to the right. Then, the two first elevating cords 15a and the two second elevating cords 15b are guided to the stopper 19 as an elevating control unit that prevents the slats 12 and the bottom rail 14 from falling due to their own weight in an integrated state. .. That is, the two first elevating cords 15a and the two second elevating cords 15b are brought close to each other so as to pass through the center of the head box 11 in the front-rear direction and approach the center line extending in the longitudinal direction, and are guided to the stopper 19. Be taken. In other words, the two first elevating cords 15a and the two second elevating cords 15b are parallel to each other and are guided to the stopper 19 after being narrower than the insertion end of the stopper 19. The stopper 19 switches between a state in which the elevating cords 15a and 15b are prevented from moving and a state in which the elevating cords 15b are allowed to move by operating the four elevating cords 15a and 15b. Then, the four elevating cords 15a and 15b aggregated by the stopper 19 are led out to the outside of the head box 11 from the operation guide member 17e as the elevating member out-licensing unit, and are bound by the equalizer 18. Specifically, the stopper 19 releases the restricted state in which the elevating cords 15a and 15b allow the slats 12 to move up and down, and regulates the movement in which the slats 12 are lowered, and the movement restrictions in which the slats 12 are lowered. Switch from the released state. The stopper 19 is normally in a regulated state, and once the elevating cords 15a and 15b are moved in the direction of raising and lowering the slat 12, the stopper 19 is released and the elevating cords 15a and 15b are moved in the direction of lowering the slat 12.

A part 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 includes a gear box of a tilt gear that rotates 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 slats 12 based on the rotation of the tilt pole 18a when the tilt pole 18a is rotated left and right. The tilt axis for tilting the slats 12 is a control shaft member extending along the longitudinal direction of the head box 11. Further, the four elevating cords 15a and 15b derived from the stopper 19 are inserted into the operation guide member 17e, the path is changed in the direction of the front wall 11b, and the four elevating cords 15a and 15b are led out from the lead-out portion to the outside of the head box 11. The operation guide member 17e is internally provided with a support roller or the like for changing the paths of the four elevating cords 15a and 15b.

When the equalizer 18 is pulled downward, the bottom rail 14 and the slat 12 can be raised, and by stopping the equalizer 18, the bottom rail 14 and the slat 12 can be stopped in the middle. At the time of ascending, 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 the position closest to the bottom rail 14. Further, when lowering the slats 12, the equalizer 18 is pulled downward a little to loosen it, and when stopping in the middle, the equalizer 18 is pulled again to stop the lowering of the bottom rail 14. At the time of descent, the bottom rail 14 descends, and as the bottom rail 14 descends, each of the plurality of slats 12 also descends together. Further, by rotating the tilt pole 18a left and right, the slats 12 can be rotated to switch between a fully closed state and a fully open state.

Inside the head box 11, in order from the right end, the support member 17b of the first elevating cord 15a, the operation guide member 17e, the code guide member 17c of the second elevating cord 15b, and the support member 17a of the first elevating cord 15a are in the longitudinal direction. Lined up along. The operation guide member 17e leads out the first elevating cord 15a and the second elevating cord 15b 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 to both ends of the head box 11 as possible.

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

As shown in FIG. 5B, the second elevating cord 15b located at the center of the slats 12 in the longitudinal direction moves up and down the center of the bottom rail 14. The second elevating cord 15b extends along the elevating direction to the leading edge portion inside the room and the trailing edge portion outside the room of the slats 12. The second elevating cord 15b is composed of one string-shaped 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. And are extended to the leading edge inside the room and the trailing edge outside the room. Then, the first elevating portion 15y located at the front edge portion of the slat 12 of the second elevating cord 15b and the second elevating portion 15z located at the trailing edge portion of the slat 12 face each other with the slat 12 interposed therebetween. The second elevating cord 15b can be elevated while sandwiching the bottom rail 14 in the front-rear direction and suspending the bottom rail 14 while suppressing the bottom rail 14 from tilting inside or outside the room.

All the elevating cords 15a and 15b are string-shaped members such as round cords having a circular cross section, and are of the same thickness and strength over the entire length. The ends of the elevating cords 15a and 15b opposite to the bottom rail 14 are bound by the equalizer 18 via the head box 11. The elevating cords 15a and 15b are members for suspending 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 elevating cords 15a and 15b suspend the bottom rail 14.

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. The weft 13b supports each slat 12 from below. The length of the protrusion from the ladder cord 13 located 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 due to its own weight. The weft 13b may be annular with the upper and lower wefts, and the slats 12 may be passed between the upper and lower wefts to support the slats 12. Further, between the warp threads 13a, the upper and lower weft threads parallel to each other are displaced up and down to provide two intersections between the two warp threads 13a, and 1 configured between the two intersections. The slats 12 may be inserted into one space. Further, between the warp threads 13a, two weft threads are crossed to provide one intersection, a first space is provided between one warp thread 13a and the intersection, and between the intersection and the other warp thread 13a. A second space may be provided in the space, and the slats 12 may be inserted into any space.

The two first elevating cords 15a located at both ends of the slats 12 are woven into the wefts 13b of the ladder cords 13 located at both ends of the slats 12. That is, the first elevating cord 15a is located inside the weft 13b with respect to the predetermined weft 13b (on the central side in the longitudinal direction of the slats 12), and is outside with respect to the different predetermined wefts 13b (of the slats 12). It is woven so as to be located on the end side in the longitudinal direction). That is, the first elevating cord 15a is woven 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 cords 13 located at both ends of the slats 12 in the longitudinal direction are located near the ends of the slats 12, the weft 13b may come off from the slats 12. The two first elevating cords 15a are woven 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 thread 13b.

Among the three ladder cords 13, the warp thread 13a of the ladder code 13 along the second elevating cord 15b includes a pico 13c through which the second elevating cord 15b is inserted. The pico 13c is an annular body formed by pulling out a thread from the warp thread 13a when the ladder cord 13 is a braided string. The pico 13c is arranged in each warp thread 13a located inside the room and outside the room, and the first elevating part 15y inside the room and the second elevating part 15z outside the room are inserted through the second elevating cord 15b. Further, a resin annular member 13d is attached to the pico 13c at a position closest to the head box 11 of the warp 13a. 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 if the second elevating cord 15b repeatedly moves. Although the pico 13c has been described as an annular portion composed of threads at the position of the knot between the warp threads 13a and the weft threads 13b, a resin-molded annular body may be integrally provided on the warp threads 13a. The annular member 13d may be omitted.

[Holder configuration]
A holder 16 is attached to the bottom rail 14 at a position where three ladder cords 13 are hung down. The warp 13a of the ladder cord 13 is also a single string-shaped member, and by being rotated by the bottom rail 14, it extends to the leading edge portion inside the room and the trailing edge portion outside the room. The intermediate portion 15x is also rotated by 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 extend to the leading edge portion inside the room and the trailing edge portion outside the room. Be present. The holder 16 arranged at the intermediate position of the bottom rail 14 holds the second elevating cord 15b and the ladder cord 13 located along the second elevating cord 15b.

As shown in FIG. 6, the holder 16 arranged in the middle portion of the bottom rail 14 includes a main body portion 16a that covers the bottom surface of the bottom rail 14, and both ends of the main body portion 16a are the bottom rail 1.
The engaging portion 16b engaged with the leading edge groove portion 14a and the trailing edge groove portion 14b of No. 4 is configured. The facing engaging portions 16b have a first groove 16c to which the intermediate portion of the warp 13a of the ladder cord 13 is engaged, and a second groove 16d to which the intermediate portion 15x of the second elevating cord 15b is engaged. ing. Further, in the main body portion 16a, an adjusting member 16e configured by a screw is arranged on the path of the warp thread 13a engaged with the first groove 16c. The tip of the shaft portion of the adjusting member 16e faces the inner surface of the main body portion 16a, and an engaging groove 16f is formed. The warp thread 13a is engaged with the engagement groove 16f. The main body portion 16a does not have to cover the entire bottom surface of the bottom rail 14.

A recessed portion 16g is formed on the inner surface of the main body portion 16a and around the adjusting member 16e. The adjusting member 16e is rotated in the recessed portion 16g, and when the warp thread 13a is wound around the shaft portion of the adjusting member 16e, the surplus warp thread 13a wound up is arranged. In the holder 16, the warp thread 13a is engaged with the first groove 16c, the intermediate portion 15x of the second elevating cord 15b is engaged with the second groove 16d, and the engaging portion 16b is engaged with the bottom rail 14 from the bottom surface side of the bottom rail 14. It is engaged with the leading edge groove portion 14a and the trailing edge groove portion 14b. As a result, the holder 16 is 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 elevating cord 15b engaged with the second groove 16d is pressed against the bottom surface of the bottom rail and the second groove 16d. As a result, the pull-out positions of the warp 13a and the second elevating cord 15b from the bottom rail 14 are fixed by the holder 16 without shifting in the extending direction of the cord. Further, the intermediate portion 15x of the warp thread 13a engaged with the first groove 16c and the second elevating 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 a state of being. Therefore, even on the front surface side and the rear surface side of the horizontal blind, the warp threads 13a and the second elevating cord 15b extend in parallel with each other. Then, the warp threads 13a and the second elevating cord 15b are in a non-parallel state on the front surface side and the rear surface side of the horizontal blind, and deterioration of appearance can be suppressed. As the holder 16, at least the warp 13a and the second elevating cord 15b are parallel to each other if the warp thread 13a can be supported by the first groove 16c and the intermediate portion 15x of the second elevating cord 15b can be supported by the second groove 16d. It does not have to be.

The intermediate portion 15x of the second elevating cord 15b engaged with the second groove 16d may not be pressed against the bottom surface of the bottom rail or the second groove 16d. In this case, the intermediate portion 15x moves in the front-rear direction with respect to the bottom rail 14 and the holder 16, and the state and position of the second elevating cord 15b are adjusted according to the situation.

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

The holder 16 for holding the warp threads 13a of the ladder cord 13 located at both ends in the longitudinal direction of the bottom rail 14 does not have a second groove 16d to which the intermediate portion 15x of the second elevating cord 15b is engaged. Become. Further, the adjusting member 16e may be omitted from any of the holders 16.

[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 an opening 11d is formed on the upper surface facing the bottom plate 11a. The cross-sectional shape is U-shaped. The front wall 11b and the rear wall 11c are hanging walls, and the first spacing, which is the spacing 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 composed of the bottom plate 11a, the front wall 11b, and the rear wall 11c of the head box 11, support members 17a and 17b as first guide portions are arranged at both ends in the longitudinal direction, and are in the middle in the longitudinal direction. A code guide member 17c as a second guide portion is arranged in the portion. Further, a stopper 19 as an elevating control unit 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 as a third guide portion for guiding the first elevating cord 15a from the support member 17b along the rear wall 11c is arranged. On the cord guide member 17c side of the stopper 19, a turning member 17d as a turning portion for turning the first elevating cord 15a along the rear wall 11c and guiding the first elevating cord 15a to the stopper 19 is arranged. The width of the head box 11 in the front-rear direction is narrowed to the same extent as or slightly wider than the width of the slats 12 in the front-rear direction, and miniaturization is realized.

[Structure of code guide member 17c]
As shown in FIG. 8, the cord guide member 17c includes a front surface side contact portion 31 facing the front wall 11b and a rear surface side contact portion 32 facing the rear surface wall 11c. The front side contact portion 31 includes a front side guide portion 33 that integrally projects with respect to the front side contact portion 31 at a substantially central portion in the longitudinal direction. Further, the rear surface side contact portion 32 includes a rear surface side guide portion 34 that integrally projects with respect to the rear surface side contact portion 32 at a substantially central portion in the longitudinal direction.

The front surface side contact portion 31 is configured such that the surface facing the front surface wall 11b is a flat surface corresponding to the inner surface shape of the front surface wall 11b. The rear surface side contact portion 32 also has a flat surface whose facing surface with the rear surface wall 11c corresponds to the inner surface shape of the rear surface wall 11c.

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

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

The front side guide portion 33 and the rear surface side guide portion 34 are protrusions 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 elevating cord 15b, the slats 12 and the like do not become an obstacle, and the tip of the second elevating cord 15b is easily inserted from the lower surfaces of the front side guide portion 33 and the rear side guide portion 34. To.

The front surface side contact portion 31 and the rear surface side 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. The connecting portion 37 is configured to be elastically displaced in a direction close to each other by receiving an external force by a worker or a tool that narrows the distance between the front surface side contact portion 31 and the rear surface side contact portion 32. There is. As shown in FIG. 9, the connecting portion 37 is in a basic state where 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 surface wall of the rear surface side contact portion 32 is the first 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 guide portion 33 and the rear side guide portion 34 are brought close to each other from the opening 11d between the front wall 11b and the rear wall 11c until they can be inserted, and are narrower than the distance between the front wall 11b and the rear wall 11c. It is in a state of having two intervals of 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 contact portion 31 with respect to the rear surface side contact portion 32 is relatively displaced.

In the code 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 from the opening 11d of the head box 11 without widening the distance between the front wall 11b and the rear wall 11c as it is. Therefore, when the cord guide member 17c is arranged inside the head box 11, the connecting portion 37 is displaced by an external force in a direction in which the front surface side contact portion 31 and the rear surface side contact portion 32 are close to each other, and the front side is displaced. The distance between the guide portion 33 and the rear surface side guide portion 34 is set to be a second gap 30b narrower than the first gap 30a. Of course, the distance 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 distance 30a. In this state, the cord guide member 17c is inserted into the head box 11 through the opening 11d. After that, the connecting portion 37 elastically returns due to the elastic returning force of the connecting portion 37, and the front side guide portion 33 and the rear surface side guide portion 34 are displaced in the direction in which the second interval 30b expands. The facing surface of the front surface side contact portion 31 was elastically urged to the inner surface of the front wall 11b, and the facing surface of the rear surface side contact portion 32 was elastically urged to the inner surface of the rear surface wall 11c. It transitions to the state of being abutted in the state. As a result, the front side guide portion 33 is fitted into the opening portion 36 of the front surface wall 11b, and the rear surface side guide portion 34 is fitted into the opening portion 36 of the rear surface side wall 11c. Then, the code guide member 17c is arranged inside the head box 11 in a positioned and fixed state.

In this way, the cord guide member 17c can be attached to the headbox 11 by widening the distance between the front wall 11b and the rear wall 11c of the headbox 11, or the cord guide member 17c can be attached to the headbox 11 from the opening end to the center portion of the longitudinal end portion of the headbox 11. 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 easily attached to the inside of the head box 11.

As shown in FIGS. 10 and 11, the front side guide portion 33 and the rear side guide portion 34 are provided with a cylindrical portion 38 as a lead-out entrance for the second elevating cord 15b having an open upper surface and a lower surface. The opening on the lower surface of the tubular portion 38 is the outlet for the second elevating cord 15b, and the outlet is located so as to project from the front wall 11b and the rear wall 11c. The tubular portion 38 includes a pair of rotary support walls 38a parallel to the front wall 11b and the rear wall 11c and parallel to each other, and a rising wall 38d perpendicular to the rotary support wall 38a, the front wall 11b, and the rear wall 11c. It is composed of. A pulley 39 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 arranged in the space portion composed of the rotation support wall 38a and the rising wall 38d. The rotation shaft 39a of the pulley 39 is rotatably supported by a support recess 38b arranged in the opposite rotation support wall 38a. The pulley 39 changes the path of the second elevating 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 surface parallel to the front wall 11b and the rear wall 11c of the rotation support wall 38a, and is vertical to the pair of rotation support walls 38a with respect to the vertical surface 38c. Are also arranged so as to intersect. That is, the rotation shaft 39a is arranged diagonally with respect to the pair of rotation support walls 38a. Further, the pulley 39 is unevenly arranged in the tubular portion 38 in the longitudinal direction of the head box 11 in a direction closer to the passage 41, and the wider space on the opposite side of the passage 41 is the second elevating cord 15b. It is said to be an insertion part. The pulley 39 guides the second elevating cord 15b and supports the load of the bottom rail 14.

The direction of the second elevating cord 15b hanging from the head box 11 is changed to the inside of 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 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 is arranged. There is. The pulley 39 changes the direction of the second elevating cord 15b toward the passage 41.

As shown in FIGS. 10 and 12, the passage 41 is a space connecting the cylindrical portion 38 in which the pulley 39 is arranged and the inside of the head box 11, and is oblique to the front wall 11b and the front wall 11b. It is extended. The passage 41 is provided with a first entrance / exit 41a on the pulley 39 side, and is provided with a second entrance / exit 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 elevating cord 15b through the passage 41, the second elevating cord 15b is inserted into the tubular portion 38 from the lower surface of the tubular portion 38, that is, from the side of the slat 12, and then the first entrance / exit 41a. Insert into. Therefore, the first entrance / exit 41a is greatly opened so that the tip end portion of the second elevating cord 15b can be easily inserted. Here, the upper surface of the first entrance / exit 41a is configured as an inclined guide surface 41c that descends toward the second entrance / exit 41b.

A guide wall 42 is erected between the pulley 39 and the first doorway 41a to guide the tip of the second elevating cord 15b from the pulley 39 to the first doorway 41a.
Further, in the second entrance / exit 41b, a guide roller 43 as a guide portion of the second entrance / exit 41b for guiding the second elevating cord 15b to the stopper 19 is arranged inside the head box 11. Inside the head box 11, each second elevating cord 15b passing through the guide roller 43 of each front side guide portion 33 and the rear side guide portion 34 approaches each other and is guided to the stopper 19 in a parallel state. As shown in FIG. 10, as an example, the distance A between the two second elevating 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. Further, as an example, the distance between the two first elevating cords 15a (not shown in FIG. 10) and the two second elevating cords 15b is narrowed until it becomes narrower than the width B of the insertion end 19a of the stopper 19. Is inserted into the insertion end 19a.

As shown in FIGS. 10 and 11, the front side guide portion 33 and the rear surface side guide portion 34 are fitted into the openings 36 of the front wall 11b and the rear wall 11c, and further with respect to the front wall 11b and the rear wall 11c. It is projected outward. A cover 46 is attached to the front side guide portion 33 and the rear surface side guide portion 34 from the outside of the front wall 11b and the rear wall 11c in a state of being fitted to the opening 36. The cover 46 includes a main surface portion 46a located parallel to the front wall 11b and the rear surface wall 11c of the rotation support wall 38a of the tubular portion 38, and a side wall portion 46b provided relative to the side edge portion of the main surface portion 46a. The upper surface portion 46c that closes the upper surface surrounded by the main surface portion 46a and the pair of side wall portions 46b is provided. Further, the lower surface portion is in the direction of the slats 12 and is open for the second elevating cord 15b to enter and exit.

As shown in FIG. 11, the cylindrical portion 38 is configured, and the rising wall 38d 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. 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 is provided with a recess 46e that engages with the protrusion 38f.

The lower surface portion of the cover 46 having an opening is inserted from the upper surface of the tubular portion 38. Then, the cover 46 is inserted until the guide rail 46d engages with the mounting groove 38e and the protrusion 38f engages with the recess 46e. At the time of assembly, the tip of the second elevating 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 includes a guide wall 47 as a guide portion whose tip is cut out in an arc shape. Two guide walls 47 are provided in parallel here, and the lower side is low and the upper side is high. The tip surfaces of the two guide walls 47 form a concave curved surface, and serve as a guide portion that guides the tip portion of the second elevating cord 15b to the first entrance / exit 41a. As shown in FIG. 13, the tip of the second elevating cord 15b inserted from the lower side abuts on 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. ° Bent and guided to the first doorway 41a. The tip of the second elevating cord 15b hits a position biased toward the first entrance / exit 41a with respect to the center line 48 extending in the vertical direction of the guide wall 47, so that the traveling direction bends by 90 ° following a curved surface. As shown in FIG. 10, the inner surface of the main surface portion 46a presses the end portion of the rotary shaft 39a of the pulley 39.

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

The drum 52 includes a cylindrical main body portion 52a and a shaft portion 52b projecting from the opposite side surface of the main body portion 52a. The shaft portion 52b includes a non-circular shaft hole 52c. A tilt shaft that rotates a drum 52 having the same cross-sectional shape as the shaft hole 52c is inserted into the shaft hole 52c. A cylindrical shaft portion 52b 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 the locking groove 52d formed on the outer peripheral surface of the main body 52a.

As shown in FIGS. 14 and 15, the tip of the side wall 51a includes a notch 57. At the tip ends of the front wall 11b and the rear wall 11c, an engaging protrusion 57a that projects inward with respect to the front wall 11b and the rear wall 11c is formed. 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 in the front-rear direction. In the bottom plate 51b, a positioning protrusion 56 is formed around the through hole 54 on the surface of the bottom rail 14 facing the bottom plate 11a. The positioning protrusion 56 has an annular shape, for example, 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 11a 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. When the bulging portion 58 is arranged between the front side guide portion 33 and the rear side guide portion 34, the bulging portion 58 presses the end portion of the rotary shaft 39a of the pulley 39.

As shown in FIG. 8, a partition portion 50 is provided between the opening 36 as the first opening and the insertion hole 55 as the second opening to separate and partition the two through holes. The partition portion 50 is provided at the same position in the longitudinal direction of the head box 11, but since the opening 36 and the insertion hole 55 are separated from each other, the strength decrease of the head box 11 at the position is suppressed. In particular, the partition portion 50 includes a corner portion composed of the bottom plate 11a and the front wall 11b and a corner portion composed of the bottom plate 11a and the rear wall 11c, so that further decrease in strength can be suppressed.

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 code guide member 17c arranged inside the head box 11, the support member 51 is positioned. The protrusion 56 is fitted into the insertion hole 55 of the bottom plate 11a and positioned. At the same time, the support member 51 restricts the front side guide portion 33 and the rear surface side guide portion 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 regulating member that restricts the front surface side contact portion 31 and the rear surface side contact portion 32 from being displaced in a direction narrower than the first interval 30a. Further, the bulging portion 58 presses the rotary shaft 39a of the pulley 39 in the direction of the cover 46. The rotating shaft 39a is prevented 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. Then, from the drum 52 attached to the bearing portion 53, the warp 13a of the ladder cord 13 is hung down through the through hole 54 and the insertion hole 55.

The cord guide member 17c is made of an integrally molded product. That is, the front side contact portion 31, the rear surface side contact portion 32, the front side guide portion 33, the rear surface side guide portion 34, and the connecting portion 37 are integrally configured, and the cover 46 for the cord guide member 17c. The pulley 39 and the guide roller 43 are separate members.

[Structure of turning member 17d]
As shown in FIGS. 4 and 16, the turning member 17d is arranged adjacent to the cord guide member 17c side of the stopper 19. The turning member 17d 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 a roller 62 is rotatably arranged between them. A space portion that rotatably supports the two rollers 62 is configured between the upper support portion 63 and the lower support portion 64. Two pairs of shaft holes 63a and 64a that rotatably support 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 pivotally supported in the shaft holes 63a and 64a. In the turning member 17d, one roller 62 is arranged on the side close to the rear wall 11c.

The side support portion 65 includes a pair of mounting pieces 66 for mounting on the end of the stopper 19. The pair of mounting pieces 66 have a protrusion 66c protruding inward at the tip thereof. A support piece 66b is formed inside the pair of mounting pieces 66 so as to be separated from the mounting piece 66. On the other hand, the end surface of the stopper 19 on the insertion end 19a side in the longitudinal direction includes a pair of connection pieces 66a connected to the turning member 17d. The connecting piece 66a is formed to be slightly narrower than the distance between the pair of mounting pieces 66, and has a protrusion 66d facing outward at the tip end portion. The turning member 17d is between a pair of mounting pieces 66, and a pair of connecting pieces 66a is inserted between the pair of mounting pieces 66 and the support piece 66b, and a protrusion formed on the tip of each other. By engaging the portions 66c and 66d with each other, the stopper 19 is attached to the end surface 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 portions, and even when they are abutted against the end surface on the delivery end 19b side in the longitudinal direction of the stopper 19, the end surface of the stopper 19 is reached. It is configured so that it does not rattle.

The turning 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 portion 67 is engaged with the positioning hole 67a formed in the bottom plate 11a of the head box 11. The turning member 17d can be mounted at a predetermined position of the head box 11 regardless of whether it is up or down by simply changing the mounting position of the roller 62.

The end of the stopper 19 on the turning member 17d side is the insertion end 19a of the elevating cords 15a and 15b, and the end on the guide member 20 side described below is the delivery end 19b.
[Structure 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 arranged on the support member 17b side of the stopper 19. The guide member 20 is a member having the same configuration as the turning member 17d. The guide member 20 is mounted adjacent to and adjacent to the delivery end 19b of the stopper 19 by turning it upside down without changing the mounting positions of the turning member 17d and the roller 62. That is, it is attached to the head box with the upper support portion 63 of the turning member 17d on the lower side and the lower support portion 64 on the upper side. Further, when the position of the roller 62 with the turning 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 located on the rear wall 11c side. As a result, the first elevating cord 15a from the support member 17b is routed along the rear wall 11c by the roller 62 of the guide member 20, and the roller 62 of the turning member 17d.
It is turned by and inserted into the insertion end 19a of the stopper 19. That is, the second elevating cord 15b is avoided between the guide member 20 and the turning member 17d on the rear wall 11c side with respect to the stopper 19. 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 for the guide member 20 in any of the up, down, left, and right directions.

[Structure of support members 17a and 17b]
As shown in FIGS. 17 and 18, the support members 17a and 17b have two side walls 71 located opposite each other in the longitudinal direction of the headbox 11. The facing side wall 71 has a bearing portion 72 formed of a recess that rotatably supports the drum 52 to which the two warp threads 13a of the ladder cord 13 are fixed. A 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 tip of the front wall 11b and the rear wall 11c.

Since the drum 52 used here has the same configuration as the drum 52 used for the support member 51 described above, details thereof will be omitted.
Further, the bottom plate 74 is formed with a long hole-shaped through hole 75 having a long axis in the front-rear direction corresponding to the insertion hole 55. In the bottom plate 74, a positioning protrusion 76 is formed around the through hole 75 on the surface of the bottom rail 14 facing the bottom plate 11a. The positioning protrusion 76 has an annular shape, for example, 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 the 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 hanging first elevating cord 15a and guides it in the direction of the stopper 19. The shaft of the support roller 80 is supported in the vicinity of the bulge 78. Further, the warp thread 13a of the ladder cord 13 is also inserted into the through hole 75 and the insertion hole 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 the window frame 100 to be attached, and shields the solar radiation of the translucent 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 ceiling box 103 arranged above the window frame 100 inside the room. In this case, the width W1 in the horizontal direction of the horizontal blind 10 is set longer than the distance 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, so that the bottom rail 14 is located below the horizontal frame 100b on the lower side 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 translucent region 101 of the window frame 100. The lower horizontal frame 100b and the bottom rail 14 may be located at the same height.

In this case, the first elevating cord 15a is located along the vertical frames 100a, 100a of the window frame 100 or outside the vertical frames 100a, 100a in a state where the bottom rail 14 is lowered. Therefore, in the fully closed state of the slats 12, the light leakage from the through hole 22 becomes inconspicuous, and the light blocking effect can be improved. 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 and 100a, so that the through hole 22 is provided. , It becomes a shadow of the vertical frames 100a and 100a, and the amount of light transmitted to the inside of the room can be reduced to make it inconspicuous.

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

As shown in FIG. 20, since the second elevating cord 15b having the same strength extends on both side edges of the bottom rail 14 in the front-rear direction, which is inside and outside the room with respect to the slats 12, when ascending and descending. In, the balance of the bottom rail 14 in the lateral direction is improved. As a result, it is possible to prevent the bottom rail 14 from tilting in either the direction inside or outside the room. As a result, when the bottom rail 14 moves up and down, the plurality of slats 12 supported by the ladder cord 13 stacked on the bottom rail 14 are also prevented from swelling and stacking on the bottom rail 14 so as to spill. be able to.

Further, each slat 12 is rotated by rotating the drum 52 provided with the support members 17a, 17b, 51 by the operation unit with the shaft inserted through the drum 52.
The front side guide portion 33 and the rear side guide portion 34 project from the front wall 11b and the rear wall 11c. Therefore, the first elevating part 15y hangs down from the front side guide portion 33 almost straight, and the second elevating part 15z hangs down from the rear side guide portion 34 almost straight. Therefore, the friction between the leading edge portion of the uppermost slat and the first elevating portion 15y can be reduced. Further, the friction between the leading edge portion of the uppermost slat and the second elevating portion 15z can be reduced. As a result, it is possible to prevent the second elevating cord 15b from being cut by friction.

The horizontal blind 10 as described above can obtain the effects listed as follows.
(1) Inside the head box 11, in order from the right end, the support member 17b of the first elevating cord 15a, the operation guide member 17e, the code guide member 17c of the second elevating cord 15b, and the support member 17a of the first elevating cord 15a. Are lined up in the longitudinal direction. The equalizer 18 and the tilt pole 18a, which are operation units, are arranged between the support member 17b and the stopper 19, and are connected to the first elevating cord 15a and the second elevating cord 15b derived 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, the light leakage from the through hole 22 becomes inconspicuous. Even if the through hole 22 is located inside the window frame 100, since the through hole 22 is located close to the vertical frames 100a and 100a, it becomes a shadow of the vertical frames 100a and 100a and is transparent. The amount of light emitted can be reduced to make it inconspicuous.

(2) Since the guide member 20 for guiding the first elevating cord 15a extending from the support member 17b to the turning member 17d is provided between the support member 17b and the support member 17a, the first elevating cord 15a avoids the stopper 19. While doing so, it can be reliably guided to the turning member 17d.

(3) The turning member 17d engages the pair of mounting pieces 66 and the pair of connecting pieces 66a, and is integrally mounted on the end surface of the stopper 19 on the insertion end 19a side. Therefore, the turning member 17d can accurately position the position with respect to the stopper 19.

(4) Since the guide member 20 is provided with a roller 62, the second elevating 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.

(6) The same parts can be used for the turning member 17d and the guide member 20.
The horizontal blind 10 as described above can be further modified as appropriate as follows.

[Modification example of code guide member 17c (second guide portion)]
As shown in FIG. 21, in the code guide member 17c, the guide portion provided at the second entrance / exit 41b of the passage 41 may be a guide surface 43a instead of the guide roller 43. This eliminates the need for the guide roller 43 and can reduce the number of parts.

Further, the code guide member 17c may be configured to omit the guide portion of the second entrance / exit 41b.
-The pulley 39, which is the guide support portion, may be omitted. In this case, instead of the pulley, a guide portion composed of an integrally molded 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 guide portion 33 and the rear side guide portion 34 do not have 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 surface side contact portion 32 and the rear surface side guide portion 34 may be configured as separate parts and may be bonded by an adhesive or the like. ..

The second elevating cord 15b may be configured as long as it is derived from the outer surfaces of the front wall 11b and the rear wall 11c. For example, the front side guide portion 33 and the rear side guide portion 34 may be flush with the outer surface or slightly. It may be recessed, and the second elevating cord 15b may be derived from such a front side guide portion 33 and a rear side guide portion 34.

[Modification example of connecting portion 37]
The front side guide portion 33 and the rear side guide portion 34 may not be connected to each other. In this case, the front side guide portion 33 is arranged on the inner surface of the front wall 11b, the rear surface side guide portion 34 is arranged on the inner surface of the rear surface wall 11c, and then the front side guide portion 33 and the rear surface side are used with the pin member as described above. It may be bridged with the guide portion 34, the front side guide portion 33 may be pressed against the front wall 11b, and the rear surface side guide portion 34 may be pressed against the rear surface wall 11c. Further, the front side guide portion 33 and the rear side guide portion 34 may be urged by an elastic body such as a coil spring or rubber in a direction away from each other.

As shown in FIG. 22, the connecting portion of the cord guide member 17c does not have to be elastically displaceable. For example, a link mechanism may be provided as a connecting portion 37 between the front side guide portion 33 and the rear side guide portion 34. As an example, this link mechanism includes a first arm 37a and a second arm 37b arranged so as to intersect each other, the intersections are rotatably supported by pins or the like, and the whole has an X shape. There is. The two ends of the first arm 37a and the second arm 37b located on the front side contact portion 31 are rotatably supported by the guide hole 37c formed of the elongated hole in the front side contact portion 31. The two ends located on the rear surface side contact portion 32 are rotatably supported by the guide hole 37c formed of the elongated hole in the rear surface side contact portion 32. As a result, the front side contact portion 31 and the rear surface side contact portion 32 are connected, and when the front side contact portion 31 and the rear surface side contact portion 32 are inserted into the head box 11, the front side contact portion 31 and the rear surface side contact portion 32 are secondly spaced apart from each other. It is inserted through the opening 11d of the head box 11 in a state of being narrowed to 30b. Of course, the distance 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 distance 30a. Then, after being inserted into the head box 11, the front surface side contact portion 31 and the rear surface side contact portion 32 are manually brought into contact with the front surface side contact portion 11b and the rear surface side contact portion 11c. After that, a restricting member such as a support member 51, a tension pin, or an elastic body is arranged between the front surface side contact portion 31 and the rear surface side contact portion 32. As a result, the front side guide portion 33 is restricted from being displaced in the direction away from the front wall 11b, and the rear surface side guide portion 34 is restricted from being displaced in the direction away from the rear surface wall 11c.

The link mechanism is not limited to the configuration shown in FIG. 22, and may be, for example, a mechanism such as a pantograph whose overall shape contracts in a rhombus or a parallelogram.
The connecting portion 37 may be configured such that the front surface side contact portion 31 can be displaced in a direction in which the front surface side contact portion 31 is close to and separated from the front wall 11b, and the rear surface side contact portion 32 may not be displaced. On the contrary, the connecting portion 37 may be configured such that the rear surface side contact portion 32 can be displaced in a direction in which the rear surface side contact portion 32 is close to and separated 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 surface side contact portion 31 and the rear surface side contact portion 32 may change relatively.

[Modification example of cover]
The cover 46 may be configured to omit the guide wall 47.
-The cover 46 may be omitted.

[Deformation example of holder]
The holder 16 may omit the second groove 16d to which the intermediate portion 15x of the second elevating cord 15b engages.

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 elevating cord 15b to the horizontal blind 10, one end of the second elevating cord 15b is first 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 doorway 41b of one of the passages 41. Next, one tip of the second elevating cord 15b is passed through the pulley 39 and exposed to the outside of the head box 11 from either the front side guide portion 33 or the rear side guide portion 34. Then, one tip of the second elevating cord 15b hangs down along the slats 12 and is turned to the bottom rail 14. After that, one tip of the second elevating cord 15b is inserted into either the front side guide portion 33 or the rear side guide portion 34, whichever is the other. At this time, the tip of the second elevating cord 15b is guided by the guide wall 47 of the cover 46, and the course naturally bends by 90 ° and is guided in the direction of the first entrance / exit 41a of the passage 41.

The guide wall 47 of the cover 46 functions when one tip of the second elevating cord 15b is inserted from the side of the pulley 39. When the second elevating cord 15b is routed as described above, one of the tips of the second elevating cord 15b is inserted from the side of the pulley 39 by either the front side guide portion 33 or the rear side guide portion 34. It is one. Therefore, the cover 46 may be arranged only in the guide portion where one end portion of the second elevating cord 15b is inserted from the side of the pulley 39.

[Modification example of support member 51]
The support member 51 as a regulating member for restricting the displacement of the front side guide portion 33 and the rear side guide portion 34 in a direction close to each other does not have a function of suspending and supporting the ladder cord 13. May be good. 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 regulating member for restricting the displacement of the front side guide portion 33 and the rear surface side guide portion 34 in a direction close to each other, a pin member such as a tension pin is provided as a front side guide portion 33 and a rear surface side guide portion. It may be configured to be bridged with 34.

[Modification example of turning member 17d (turning portion) and guide member 20 (third guide portion)]
When the turning member 17d and the guide member 20 are shared, if the turning member 17d is turned upside down, it is not necessary to change the position of the roller 62. As shown in FIG. 23, the shaft hole 63
Only one pair of a and 64a may be provided. As a result, while trying to standardize the equipment of the turning member 17d and the guide member 20, the configuration can be simplified by not reducing the two pairs of shaft holes 63a and 64a into a pair.

The turning member 17d and the guide member 20 may have a guide wall erected instead of the roller 62, and the second elevating cord 15b may be guided by the 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.

As for the guide member 20, the pair of mounting pieces 66 and the pair of connecting pieces 66a may be engaged with each other and mounted on the end surface of the stopper 19 on the delivery end 19b side, as in the case of the turning member 17d.

The turning member 17d and the guide member 20 do not have to be provided with the positioning portion 67. Further, only one of the turning member 17d and the guide member 20 may be provided.
The turning member 17d and the guide member 20 may be parts having completely different shapes.

The first elevating cord 15a may be along the front wall 11b instead of along the rear wall 11c between the guide member 20 and the turning member 17d.
[Deformation example of elevating member]
The second elevating cord 15b may be composed of two cords, one on the front side and the other on the rear side. In this case, one end of each elevating cord 15b is fixed to the bottom rail 14.

The first elevating cord 15a may have the same configuration as the second elevating cord 15b. That is, instead of inserting the slats 12 through the through holes 22, the slats 12 may extend in the ascending / descending direction to the leading edge portion inside the room and the trailing edge portion outside the room. In this case, since the through hole 22 is not required, the light-shielding property of the horizontal blind 10 can be improved.

-The leading edge portion and the trailing edge portion of the slats 12 may be provided with notched recesses with which the second elevating cord 15b is engaged.
The second elevating cord 15b may be hung at a plurality of places in the longitudinal direction between the first elevating cords 15a of the head box 11. Further, the second elevating cord 15b may not be arranged at the central portion in the longitudinal direction of the head box 11, and may be arranged at an intermediate position deviated from the central portion in the longitudinal direction.

The second elevating cord 15b may be arranged only on the front surface side or only on the rear surface side. In this case, the elevating cord is inserted through either the front side guide portion 33 or the rear side guide portion 34.

The first elevating cord 15a and the second elevating cord may be a tape-shaped member instead of a string-shaped member.
As shown in FIG. 24, the first elevating part 15y and the second elevating part 15z of the second elevating cord 15b are configured to be drawn out from the front wall 11b and the rear wall 11c, and also have an insertion hole arranged in the bottom plate 11a. It may be drawn from 55. In this case, the insertion hole 55 of the bottom plate 11a is formed in a long hole shape with the long axis in the front-rear direction, from which the first elevating portion 15y and the second elevating portion 15z of the second elevating cord 15b are pulled out.

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

The bottoms of the front surface side contact portion 91a and the rear surface side contact portion 91b are provided with half holes 94a and 94b forming through holes 94 corresponding to the insertion holes 55. At the bottom of the front surface side contact portion 91a and the rear surface side contact portion 91b, protrusions 95a and 95b constituting the positioning protrusion 95 are formed around the half holes 94a and 94b. 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 surface side contact portion 91a and the rear surface side contact portion 91b that are close to each other are not separated from each other.

At the bottom of each of the front surface side contact portion 91a and the rear surface side contact portion 91b, a support roller 96 is arranged along the long axis of the through hole 94 at a position along the through hole 94. The support roller 96 functions as a front side guide portion and a rear surface side guide portion, supports the hanging first elevating cord 15a, and guides the support roller 96 in the direction of the stopper 19. Each of the front surface side contact portion 91a and the rear surface side contact portion 91b is provided with a rotation support portion 96a that pivotally supports the support roller 96. Specifically, the support roller 96 arranged on the front surface side contact portion 91a supports the first elevating portion 15y of the second elevating cord 15b, and the support roller 96 arranged on the rear surface side abutting portion 91b is the first. 2 Supports the second elevating portion 15z of the elevating cord 15b.

Further, in the front surface side contact portion 91a and the rear surface side contact portion 91b, a drum 52 to which the ladder code 13 is fixed is attached to the side wall portions 97a and 97b located so as to be orthogonal to the longitudinal direction of the head box 11. It has a bearing portion 98 that rotatably supports it. The bearing portion 98 is configured by abutting the recess 98a provided in the side wall portion 97a with the recess 98b provided in the side wall portion 97b.

When inserting into the head box 11, the front side contact portion 91a and the rear surface side contact portion 91b are inserted through the opening 11d of the head box 11 in a state where the front side contact portion 91a and the rear surface side contact portion 91b are narrowed until the distance between the front wall 11b and the rear wall 11c is narrowed. Will be done. Then, after being inserted into the head box 11, the front surface side contact portion 91a and the rear surface side contact portion 91b are manually brought into contact with the front surface side contact portion 11b and the rear surface side contact portion 11c. At this time, the positioning protrusion 95 is fitted into the insertion hole 55 so that the front surface side contact portion 91a and the rear surface side contact portion 91b that are close to each other are not separated from each other. Further, the warp thread 13a of the ladder cord 13 is also inserted into the through hole 94 and the insertion hole 55.

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

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

Since the drum 52 used here has the same configuration as the drum 52 used for the support member 51 described above, details thereof will be omitted.
A through hole 89 having a long axis in the front-rear direction is formed at the bottom of the space between the closed surface 86a and the support wall 87. 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 hanging first elevating cord 15a and guides it in the direction of the stopper 19. In this way, the two warp threads 13a of the ladder cord 13 and the first elevating cord 15a are hung from the through hole 94.

When the cap member 86 as described above is used, the drum 52 that supports the ladder cord 13 and the support roller 80 that supports the first elevating cord 15a are arranged on the cap member 86. Therefore, the position of the first elevating cord 15a located at both ends of the slat 12 can be as close as possible to the end of the slat 12. Further, when the 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 member 86 as described above may be arranged at both ends of the head box 11 in the longitudinal direction.
The support projection 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 closing surface 86a.

In FIG. 4, inside the head box 11, in order from the right end, the support member 17b of the first elevating cord 15a, the operation guide member 17e as the rotation control unit and the operation unit, the guide member 20, and the stopper 19 as the elevating control unit. , The turning member 17d, the code guide member 17c of the second elevating cord 15b, and the support member 17a of the first elevating cord 15a are arranged in the longitudinal direction. Then, the first elevating cord 15a extending from the support member 17b is guided to the turning member 17d while avoiding the stopper 19 by being along the rear wall 11c by the guide member 20, and then introduced into the stopper 19. To.

In this respect, the operation guide member 17e has a first elevating cord 15a extending from the support member 17b toward the turning member 17d in the longitudinal direction at the center of the headbox 11 in the front-rear direction or the up-down direction so as to avoid the stopper 19. An avoidance guide portion may be provided to guide the center line P extending to the center line P so as to be biased to either one. The operation guide member 17e functions as a rotation control unit for rotating and controlling the tilt shaft 122 as a control shaft member, and also functions as a derivation unit for leading the first elevating cord 15a and the second elevating 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 an operation unit 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), in the operation guide member 17e, the first elevating cord 15a extending from the support member 17b is shifted from the center line P to the rear surface wall 11c side along the rear surface wall 11c. The avoidance guide portion 121 may be provided so as to avoid the stopper 19. The avoidance guide portion 121 is provided at a position close to the rear wall 11c of the operation guide member 17e and at a position avoiding the gear box 121a of the tilt gear. Here, as an example, the avoidance guide portion 121 is located on the bottom plate 11a side of the tilt shaft 122 rotated by the tilt gear. The first elevating cord 15a extending from the support member 17b guided by the avoidance guide portion 121 is guided along the rear wall 11c by being guided to the avoidance guide portion 121 at the position of the operation guide member 17e. Then, the first elevating cord 15a is guided to the turning member 17d, and then introduced into the stopper 19. Therefore, 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. 28 (a) and 28 (b), the avoidance guide unit 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 head box 11 from the side of the bottom plate 11a of the head box 11. Inside the head box 11, the guide member 121x is provided with a guide roller, a guide pin, and a pulley, and the first elevating cord 15a extending from the support member 17b is shifted from the center line P to the rear wall 11c side to the rear wall. I will guide you to follow 11c. That is, the first elevating 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 elevating cord 15a is guided to the turning member 17d, and then introduced into the stopper 19. Even with such a configuration, the stopper 19 can be avoided. Further, when the guide member 121x is used, the existing operation guide member 17e can be diverted by using the guide member 121x. The guide member 121x may be attached from the rear wall 11c side.

Further, the guide member 121x can be integrally provided 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. 29 (a) and 29 (b), in the operation guide member 17e, the first elevating cord 15a extending from the support member 17b is shifted from the center line P toward the front wall 11b and along the front wall 11b. The avoidance guide portion 121 may be provided so as to avoid the stopper 19. The avoidance guide portion 121 is provided at a position close to the front wall 11b of the operation guide member 17e and at a position avoiding the gear box 121a of the tilt gear. Here, as an example, the avoidance guide portion 121 is provided on the upper side of the gear box 121a near the front wall 11b. The first elevating cord 15a extending from the support member 17b is guided along the front wall 11b by being guided to the avoidance guide portion 121 at the position of the operation guide member 17e. Then, the first elevating cord 15a is guided to the turning member 17d, and then introduced into the stopper 19. Therefore, even in this example, 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. 30A and 30B, in the operation guide member 17e, the first elevating cord 15a extending from the support member 17b is shifted upward from the center line P and extends to the upper side of the operation guide member 17e. The avoidance guide portion 121 may be provided so as to be present so as to avoid the stopper 19. The avoidance guide portion 121 is provided at a position above the operation guide member 17e and avoiding the gear box 121a of the tilt gear. As an example, the first elevating cord 15a extending from the upper portion of the operation guide member 17e toward the stopper 19 is along the rear wall 11c by the guide groove 19x1 formed at a position close to the rear wall 11c of the case 19x provided by the stopper 19. Further, it is guided to gradually descend from the upper part of the head box 11 and guided to the turning member 17d. Then, the first elevating cord 15a is turned by the turning member 17d and introduced into the stopper 19. The first elevating cord 15a is guided along the front wall 11b by a guide groove formed at a position close to the front wall 11b so as to gradually descend from the upper side of the head box 11 to the turning member 17d. You may be guided. Even in such an example, the guide member 20 becomes unnecessary from the head box 11, and the number of parts can be reduced.

Further, as shown in FIGS. 31 (a) and 31 (b), the avoidance guide unit 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 head box 11 from the side of the rear wall 11c of the head box 11. Then, inside the head box 11, the guide member 121x guides the first elevating cord 15a extending from the support member 17b so as to shift upward from the center line P and extend to the upper side of the operation guide member 17e. After that, the first elevating cord 15a is, as an example, along the rear wall 11c by the guide groove 19x1 formed at a position close to the rear wall 11c of the case 19x provided by the stopper 19, and gradually from the upper part of the head box 11. It is guided to descend and is guided to the turning member 17d. After that, the first elevating cord 15a is introduced into the stopper 19. Even with such a configuration, the stopper 19 can be avoided. Further, when the guide member 121x is used, the existing operation guide member 17e can be diverted by using the guide member 121x.

The guide member 121x may be attached from the bottom plate 11a side.
Further, the guide member 121x can be integrally provided 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), in the operation guide member 17e, the first elevating cord 15a extending from the support member 17b is shifted downward from the center line P to the lower side of the operation guide member 17e. The avoidance guide portion 121 may be provided to avoid the stopper 19. The avoidance guide portion 121 is a concave groove provided on the lower side of the operation guide member 17e at a position avoiding the gear box 121a of the tilt gear. The first elevating cord 15a extending from the lower side of the operation guide member 17e toward the stopper 19 passes through the lower side of the stopper 19 as it is and is guided to the turning member 17d. The case 19x of the stopper 19 is provided with a guide groove for the first elevating cord 15a, and the first elevating cord 15a is guided in the direction of the turning member 17d at the lower part of the stopper 19 by the guide groove. Then, the first elevating cord 15a is turned by the turning member 17d and introduced into the stopper 19. Even in such an example, the guide member 20 becomes unnecessary from the head box 11, and the number of parts can be reduced.

Further, as shown in FIGS. 33 (a) and 33 (b), the operation guide member 17e is provided with a first elevating cord 15a extending from the support member 17b so as to penetrate the operation guide member 17e from the center line P. The avoidance guide portion 121 may be provided so as to avoid the stopper 19 by shifting it toward the rear wall 11c. The avoidance guide portion 121 is provided with a positioning piece 121b for positioning and arranging in the head box 11. The positioning piece 121b here is, for example, a plate portion for positioning 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 a first elevating cord 15a extending from the support member 17b is inserted. The first elevating cord 15a through which the avoidance guide portion 121 is inserted is guided to the turning member 17d along the rear wall 11c. Then, the first elevating cord 15a is turned by the turning member 17d and introduced into the stopper 19. The first elevating cord 15a may be guided to the turning member 17d along the front wall 11b. Even in such an example, the guide member 20 becomes unnecessary from the head box 11, and the number of parts can be reduced.

In the examples of FIGS. 27 to 33, the operation guide member 17e is provided with the avoidance guide portion 121 in order to avoid the stopper 19, but the first elevating cord 15a extending from the support member 17b avoids the stopper 19. It may be configured not to. As shown in FIG. 34, the first elevating cord 15a extending from the support member 17b exists on the right side of the operation guide member 17e, and the left end support of the head box 11 is on the left side of the operation guide member 17e. There is one first elevating cord 15a extending from the member 17a and a second elevating cord 15b extending from the cord guide member 17c. Regardless of which of the elevating cords 15a and 15b, the elevating control needs to be performed by the stopper 19 before entering the operation guide member 17e.

Therefore, the first stopper 19y and the second stopper 19z are arranged on both sides of the operation guide member 17e. The first stopper 19y is an elevating control unit arranged on the left side of the operation guide member 17e, and extends from one first elevating cord 15a extending from the support member 17a at the left end of the head box 11 and 2 extending from the cord guide member 17c. The second elevating cord 15b of the book is inserted and sent to the operation guide member 17e. On the other hand, the second stopper 19z is an elevating control unit arranged on the right side of the operation guide member 17e, and is from the first elevating cord 15a and the cord guide member 17c extending from the support member 17b at the right end of the head box 11. The extending second elevating cord 15b is inserted and sent to the operation guide member 17e.

With such a configuration, it is not necessary to use a part of the operation guide member 17e to provide guidance to avoid 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 turning member 17d become unnecessary, and the number of parts can be reduced as a whole. Further, by eliminating the need for the guide member 20 and the turning member 17d, the frictional resistance to the first elevating cord 15a can be reduced.

As shown in FIG. 4, 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 first elevating cord 15a and the second elevating cord 15a derived from the operation guide member 17e are arranged. It is connected to the elevating cord 15b. The support members 17a and 17b corresponding to the first elevating cord 15a are arranged as close to both ends of the head box 11 as possible. In line with this, as shown in FIG. 3, the through holes 22 of the slats 12 are also arranged as close to both ends of the slats 12 as possible.

Further, in the ladder code 13, the pair of warp threads 13a are also arranged along the first elevating cord 15a. That is, the warp threads 13a of the ladder cord 13 along the first elevating cord 15a are also extended to positions as close to both ends of the slats 12 as possible. Therefore, if the slat 12 is laterally displaced, the weft 13b of the ladder cord 13 may come off from the end of the slat 12. In particular, when the slats are pulled up and stacked on the bottom rail 14, the warp threads 13a loosen significantly and are likely to come off from the ends of the slats 12. Therefore, the ladder cord 13 is prevented from coming off from the end portion 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, and the warp threads 13a are first moved up and down through the through hole 22. It is located at the same position as the cord 15a or on the intermediate side of the headbox from the first elevating cord 15a and is in parallel. In this case, between the head box 11 and the bottom rail 14, the weft 13b located on the intermediate portion side of the slats 12 from the first elevating cord 15a passes through the through hole 22 at the first elevating and lowering. It is located on the end side of the slats 12 from the cord 15a. In other words, directly below the head box 11 and directly above the bottom rail 14, the first elevating cord 15a through which the through hole 22 is inserted is located closer to the end of the slat 12 than the weft 13b.

That is, when the hanging position of the first elevating cord 15a (distance from the end of the slat 12) is set to (A) and the hanging position of the warp 13a (distance from the end of the slat 12) is set to (B).
(A) ≤ (B)
When in a relationship
At least one weft thread 13b is located on the end side of the slats 12 with respect to the first elevating cord 15a through which the through hole 22 is inserted. Since the weft 13b is located on the intermediate portion side of the first elevating cord 15a, the ladder cord 13 can prevent the weft 13b from hitting the first elevating cord 15a and coming off even if the weft 13b tries to come off from the end portion of the slat 12. Further, by locating the weft 13b on the end side of the slats 12 with respect to the first elevating cord 15a, it is possible to prevent the rudder cord 13 from moving too much toward the intermediate portion of the slats 12. As a result, it is possible to prevent the loose ladder code 13 from becoming unattractive even when the slats 12 are raised.

More preferably, in the middle step in the slat 12 between the headbox 11 and the bottom rail 14 (for example, one or more slat steps located in the vertical center of the slat 12), the weft 13b is the first. 1 Located on the end side of the slats 12 from the elevating cord 15a. In other words, the weft 13b is preferably located on the end side of the slat 12 with respect to the first elevating cord 15a for one step of the slat 12.

When the length of the horizontal blind in the vertical direction is long, the weft thread 13b may be located at a plurality of positions on the end side of the slats 12 with respect to the first elevating cord 15a. In this case, a plurality of locations where the weft 13b is located on the end side of the slats 12 with respect to the first elevating cord 15a may be provided evenly at a plurality of locations. 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 13b is located on the end side of the slat 12 with respect to the first elevating cord 15a. Further, it is preferable that the weft 13b is located on the end side of the slat 12 with respect to the first elevating cord 15a for one step of the slat 12.

The weft 13b is positioned on the end side of the slat 12 from the first elevating cord 15a at least one step (D) of the slat 12, and (A) / (D) (D are adjacent to each other). It is preferable that the distance between the slats 12 is the same.

Further, as shown in FIG. 35 (b), the relationship between the position of the hanging position of the warp 13a of the ladder cord 13 from the head box 11 and the hanging position of the first elevating cord 15a from the head box 11 is A> B. At one point, it looks like this: That is, the weft 13b is located on the end side of the slat 12 with respect to the first elevating cord 15a directly above the bottom rail 14 and directly below the head box 11. In such a state, it is preferable to position the weft 13b located on the end side of the slats 12 from the first elevating cord 15a on the intermediate portion side of the head box from the first elevating cord 15a. Specifically, the distance (C) from the head box 11 at which the weft 13b switches from the end side of the slat 12 to the intermediate portion side of the head box 11 from the first elevating cord 15a through which the weft hole 22 is inserted is as follows. become that way. That is, the distance (C) is the protrusion dimension (A (= first elevating cord) from the slat 12 through which the through hole 22 is inserted to the longitudinal end portion of the slat 12 directly below the head box 11 and directly above the bottom rail 14. It is set shorter than the hanging position of 15a)) (C <A).

According to the above configuration, it is possible to reduce the number of braided parts of the ladder cord 13 and the first elevating cord 15a while suppressing the weft 13b from coming off from the end portion of the slats 12, and the production efficiency is improved. It can be improved. Further, since the weft 13b is located on the intermediate portion side of the first elevating cord 15a, it is possible to prevent the weft 13b from hitting the first elevating cord 15a even if it tries to come off from the end portion of the slats 12. Further, by locating the weft 13b on the end side of the slats 12 with respect to the first elevating cord 15a, it is possible to prevent the rudder cord 13 from moving too much toward the middle portion of the slats 12. As a result, it is possible to prevent the loose ladder code 13 from becoming unattractive even when the slats 12 are raised.

[Modification example of slats 12]
In the slats 12, the first elevating cord 15a is inserted through the through hole 22. Therefore, as an example, when a part of the slats 12 becomes dirty and needs to be replaced, it is necessary to remove all the slats 12 from the first elevating cord 15a. As shown in FIG. 36, the slat 12 is provided with a communication portion 116 that communicates the through hole 22 and the outer peripheral edge. As an example, the communication portion 116 is configured by a cut cut from the outer peripheral edge portion to the through hole 22 by a cutting means such as a cutter or a punch. The width of the communication portion 116 is narrower than the diameter of the first elevating cord 15a, so that the first elevating cord 15a does not come out from the through hole 22 through the communication portion 116 in normal use. It is configured. When replacing the slat 12, the communication portion 116 can be widened and the first elevating cord 15a can be removed from the through hole 22 by alternately bending both sides of the notches constituting the communication portion 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 provided with a notch from the side edge portion 12c of the slat 12 toward the through hole 22, it is possible to suppress a decrease in the strength of the slat 12 as a whole. Since the positions from the side edge portion 12c toward the through hole 22 are both ends of the horizontal blind, it is difficult to see from the inside of the room.

As shown in FIG. 37, the communication portion 116 may be provided so as to provide a notch in the communication portion 116 from the trailing edge portion 12b of the slat 12 toward the through hole 22. In this case, the communication portion 116 faces the outside of the room, making it difficult to see from the inside of the room. A notch in the communication portion 116 may be provided from the leading edge portion 12a of the slats 12 toward the through hole 22.

Further, as shown in FIG. 38, the slat 12 is provided near the side edge portion 12c of the leading edge portion 12a on the one end side in the longitudinal direction, and the trailing edge portion 12b is provided on the other end side in the longitudinal direction. It may be provided in the vicinity of the side edge portion 12c of the above. Further, one end side of the slats 12 in the longitudinal direction is provided with a communication portion 116 so as to communicate the side edge portion 12c and the through hole 22 (see FIG. 36), and the other end side in the longitudinal direction is the leading edge. The communication portion 116 may be provided so as to communicate the portion 12a or the trailing edge portion 12b with the through hole 22 (see FIG. 37). Further, the communication portion 116 may be configured by a notch so as to be oblique to the leading edge portion 12a, the trailing edge portion 12b, and the side edge portion 12c. As an example, the communication portion 116 may be formed by a notch connecting the corner portion of the slats 12 and the through hole 22.

The notch constituting the communication portion 116 may be a straight line shape, a curved line shape, or a shape obtained by combining a straight line shape and a straight line shape. By making the communication portion 116 a notch having a complicated shape, the first elevating cord 15a is more difficult to come off from the through hole 22 during normal use.

[Modification example of head box 11]
The head box 11 is made of steel or aluminum. If it is made of steel, it is formed by bending steel, and if it is made of aluminum, it is extruded. 39 and 40 (a) are steel head boxes 11 which are the same as the head boxes 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 are not continuous through holes, but are discontinuous, and have a partition portion 50 in between. .. 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) connects the opening 36 and the insertion hole 55 as a reference example. It is sectional drawing of the head box which made the continuous hole 11y. Comparing FIGS. 40 (a) and 40 (b), it can be confirmed that the area having the partition portion 50 in FIG. 40 (a) clearly has a larger cross-sectional area than the case where the continuous hole 11y is used. Therefore, the steel head box 11 is clearly stronger in the vertical direction and the front-rear direction than in the case where the opening 36 of the front wall 11b and the rear wall 11c and the insertion hole 55 of the bottom plate 11a are continuous holes 11y. Can be suppressed.

41 and 42 (a) are aluminum head boxes 11. In the case of the aluminum head box 11, a projecting piece 11x is provided downward on the front wall 11b and the rear wall 11c. The projecting piece 11x functions as a light-shielding plate between the uppermost slat 12 and the head box 11, and the projecting piece 11x shields external light from the outside of the room. Even in the case of the aluminum head box 11, the opening 36 and the insertion hole 55 are discontinuous, and a partition portion 50 is provided between them. 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) connects the opening 36 and the insertion hole 55 as a reference example. It is sectional drawing of the head box which made the continuous hole 11y. Comparing FIGS. 42 (a) and 42 (b), it can be confirmed that the area having the partition portion 50 in FIG. 42 (a) clearly has a larger cross-sectional area than the case where the continuous hole 11y is used. Therefore, the aluminum head box 11 is clearly stronger in the vertical direction and the front-rear direction than when the opening 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. The decrease can be suppressed.

FIG. 43 is a modification of the head box 11 formed by bending steel in the case of steel. The steel headbox 11 shown in FIGS. 39 and 40A is provided with 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. In consideration of the size of the horizontal blind, the layout of parts, and the like, the hanging position of the second elevating cord 15 from the head box 11 and the hanging position of the ladder cord 13 may be different. Even in such a case, the partition portion 50 will exist between the opening 36 and the insertion hole 55. Therefore, even in the head box 11 shown in FIG. 43, it is possible to suppress a decrease in strength in the vertical direction and the front-rear direction.

[Modification example of operation guide member 17e]
As shown in FIG. 44A, the operation guide member 131 includes a main body portion 132 and a tilt gear gearbox portion 133 attached to the main body portion 132. Further, the operation guide member 131 includes an introduction unit 134 into which the first elevating cord 15a and the second elevating cord 15b from the stopper 19 are introduced, a connecting tool 135 connected to the tilt pole 18a as an operating unit, and a connecting tool 135. It is provided with a derivation unit 136 from which the first elevating cord 15a and the second elevating cord 15b are derived from the inside of the above.

The main body 132 is internally provided with a passage connecting the opening constituting the introduction 134 and the lead-out 136, and the passage includes the first elevating cord 15a and the second elevating cord introduced from the introduction portion 134. A pulley 137 that changes the path of 15b in the direction of the lead-out unit 136 is arranged. The lead-out unit 136 of the connector 135 is connected to the passage of the main body unit 132, and leads out the first elevating cord 15a and the second elevating cord 15b. The first elevating cord 15a and the second elevating cord 15b derived from the lead-out unit 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 gear box portion 133 of the tilt gear houses a tilt gear train that transmits the rotation of the tilt pole 18a to the tilt shaft 122. Specifically, by rotating the connector 135 to which the tilt pole 18a is connected, the tilt shaft 122 is rotated via the tilt gear. The periphery of the connector 135 in the main body 132 is a portion facing the outside from the front wall 11b, and is a mounting portion 136a that engages with the mounting opening of the front wall 11b. The mounting portion 136a is, for example, a rectangular protruding portion, and in a state where the protruding portion is engaged with the mounting opening of the front wall 11b, the fitting 135 is faced to the outside from the front wall 11b and becomes the fitting 135. The tilt pole 18a is in a connectable state.

The main body 132 includes a support roller 138 as a support for supporting the first elevating cord 15a suspended from the head box 11. A support frame 138a for supporting the support roller 138 is provided on the surface of the main body 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 is in the front-rear direction of the head box 11. The bottom plate 11a of the head box 11 located below the support roller 138 is provided with an insertion hole 139 for hanging the first elevating cord 15a. The support roller 138 corresponds to the support roller 80 provided in the support member 17b as 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 elevating cord 15a guided from the outside of the head box 11 into the head box 11 by the support roller 138 is guided toward the stopper 19, and then by the turning member 17d. It is turned around, passes through the stopper 19 together with the second elevating cord 15b, and then is introduced into the introduction unit 134. Since such an operation guide member 131 includes the support roller 138, the support roller 80 can be omitted from the support member 17b.

The operation guide member 17e used in FIGS. 4 and 18 is not provided with the support roller 138 or the support frame 138a.
[Other variants]
-The movement of the second elevating cord 15b can be suppressed without using the pico 13c or the annular member 13d. That is, the second elevating cord 15b is inserted between the wefts 13b arranged vertically, and the second elevating cord 15b is inserted between the wefts 13b arranged vertically. Specifically, when the second elevating cord 15b is inserted from one side to the other side through the insertion portion between the weft threads 13, the other is inserted into the next insertion portion which is separated by a plurality of stages, for example, about 5 to 7 stages. It is inserted from one side to one side. As a result, the second elevating cord 15b is prevented from floating without deteriorating the design by the side edge portion of the slat 12 and the weft 13b of the ladder cord 13 without using the pico 13c or the annular member 13d. Will be done.

-As an operation unit, in addition to the one-pole type with an equalizer 18 provided at the tip of the tilt pole 18a, the pole and cord are attached separately, 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. Specifically, as shown in FIGS. 45 (a) to 45 (c), in this horizontal blind, the pole 201 hangs down from the front wall 11b of the head box 11. Further, an elevating cord 15 for elevating operation is hung from the pole 201 at a position different from the hanging position of the pole 201 on the front wall 11b, for example, on the central portion side in the longitudinal direction of the head box 11 from the pole 201. The elevating cord 15 is connected to an auxiliary cord 202 having one end connected to one end of the bottom rail 14 via an equalizer 203. Further, a safety joint 204 is provided in the middle portion of the auxiliary cord 202.

At the hanging position of the pole 201 in the head box 11, a rotation control unit 205 having a tilt gear for rotating and controlling the tilt shaft 122 is provided. The rotation control unit 205 rotates the tilt shaft 122 in response to the rotation operation of the pole 201 to move the ladder code 13 in the vertical direction to rotate the slats 12. Further, at the hanging position of the elevating cord 15, a lead-out unit 206 that leads out from the inside of the head box 11 is provided. The lead-out unit 206 as the elevating member lead-out unit includes a support roller or the like, and changes the path of the elevating cord 15 extending in the longitudinal direction in the head box 11 to the direction in which the elevating cord 15 is led out to the front wall 11b.

Even in the horizontal blind as described above, the first elevating cord 15a and the second elevating cord 15b are routed in the head box 11 as follows. Specifically, as shown in FIG. 45 (b), the first elevating cord 15a on the left side of the figure is guided from the outside of the head box 11 into the head box 11 by the support member 17a as the first guide portion. The inside of the head box 11 extends from the left end portion in the figure toward the right end portion. The first elevating cord 15a on the right side in the drawing is guided into the headbox 11 from the outside of the headbox 11 by the support member 17b as the first guide portion, and the inside of the headbox 11 is longitudinally oriented from the end on the right side in FIG. It extends toward the center of the box. Then, it is folded back to the right side of the head box 11 by the turning member 17d as the turning portion. The second elevating cord 15b located at the center of the head box 11 in the longitudinal direction is guided into the head box 11 from the outside of the head box 11 by the cord guide member 17c as the second guide portion, and is longitudinally inside the head box 11. It extends from the center of the direction to the right. Then, the two first elevating cords 15a and the two second elevating cords 15b are guided to the stopper 19 as an elevating control unit that prevents the slats 12 and the bottom rail 14 from falling due to their own weight in an integrated state. After that, it is led out from the lead-out unit 206 to the outside of the head box 11. When inserted into the stopper 19, the widths of the first elevating cord 15a and the second elevating cord 15b are narrowed from the insertion end of the stopper 19, and are inserted into the insertion end of the stopper 19 in a state parallel to each other.

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

-The horizontal blind may be placed between the inner window and the outer window. Further, it may be arranged inside a translucent partition.
-As a sun-shielding device, it can be applied to pleated screens as well as horizontal blinds.

Further, according to the above-described embodiment and its modification, the following technical ideas are further derived.
(Appendix 1)
A head box that hangs the first elevating member and the second elevating member,
A shielding member that moves up and down by raising and lowering the first raising and lowering member and the second raising and lowering member,
A ladder cord suspended from the head box and rotatably supporting each of the shielding members,
In the head box, a support portion for supporting the ladder cord is provided, and a control shaft member for rotating the support portion is provided.
The head box includes a first guide unit, a rotation control unit, an elevating control unit, a turning unit, and a second guide unit in this order from one end portion in the longitudinal direction to the intermediate portion.
The first guide portion guides the first elevating member so as to hang down.
The second guide portion guides the second elevating member so as to hang down.
The rotation control unit rotates the control shaft member in order to rotate the shielding member.
The turning unit rotates the first elevating member extending from the first guide unit toward the turning unit from the turning unit toward the elevating control unit.
In the elevating control unit, the first elevating member rotated by the turning unit and the second elevating member extending from the second guide unit toward the elevating control unit are inserted and inserted into the first elevating control unit. The member and the second elevating member are sent out to the lead-out unit that is sent out of the head box.
The regulation state in which the first elevating member and the second elevating member allow the movement to raise the shielding member and restrict the movement to lower the shielding member, and the movement restriction to lower the shielding member are released. To switch between the release state and
The lead-out unit leads 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 unit or the first guide unit and the rotation control unit, the first elevating member extending from the first guide unit toward the turning unit is guided so as to avoid the elevating control unit. A solar shading device equipped with an avoidance guide.

(Appendix 2)
The avoidance guide unit describes the first elevating member extending from the first guide unit toward the turning portion so as to avoid the elevating control unit and guide the first elevating member along the rear wall of the head box. Sunlight shielding device.

(Appendix 3)
The avoidance guide unit describes the first elevating member extending from the first guide unit toward the turning portion so as to avoid the elevating control unit and guide the first elevating member along the front wall of the head box. Sunlight shielding device.

(Appendix 4)
The solar radiation according to Supplementary Note 1, wherein the avoidance guide unit guides the first elevating member extending from the first guide unit toward the turning portion by passing above the rotation control unit and avoiding the elevating control unit. Cloaking device.

(Appendix 5)
The avoidance guide unit is described in Appendix 1 for guiding the first elevating member extending from the first guide unit toward the turning unit to pass under the rotation control unit and avoid the elevating control unit. Sunlight shielding device.

(Appendix 6)
The solar radiation shielding device according to Appendix 1, wherein the avoidance guide portion guides the first elevating member extending from the first guide portion toward the turning portion to penetrate the rotation control unit and avoid the elevating control unit. ..

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

(Appendix 8)
The solar radiation shielding device according to Appendix 1, wherein the avoidance guide unit is a separate body from the elevating control unit.

(Appendix 9)
A headbox that hangs multiple elevating members,
A shielding member that moves up and down by raising and lowering the plurality of raising and lowering members is provided.
The head box includes an elevating member lead-out unit, guide portions located on both sides of the elevating member elevating member lead-out unit, and elevating control units located on both sides of the elevating member elevating member lead-out unit and between the guide unit.
The elevating member lead-out unit leads the elevating member out of the head box so that the shielding member can be moved up and down.
The guide portion guides the elevating member so as to hang down from the head box.
In the elevating control unit, the elevating member extending from the guide unit toward the elevating control unit is inserted, and the inserted elevating member is sent out to the elevating member lead-out unit.
A solar shading device that switches between a regulated state in which the elevating member allows movement to raise the shielding member and restricts movement in which the shielding member is lowered, and a release state in which the movement restriction for lowering the shielding member is released. ..

(Appendix 10)
A headbox that hangs multiple elevating members,
A shielding member that moves up and down by raising and lowering the plurality of raising and lowering members,
It is provided with a ladder cord suspended from the head box 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 threads parallel to the elevating member and a weft thread connecting the pair of warp threads, and the weft thread passes through the through hole on the intermediate portion side of the shielding member in the longitudinal direction. Located in
A solar shielding device located at least one place in the middle stage of the shielding member on the end side of the shielding member with respect to the elevating member through which the weft passes through the through hole.

(Appendix 11)
The solar radiation shielding device includes a bottom rail that is arranged further below the shielding member at the bottom among the plurality of shielding members.
The solar shielding device according to Appendix 10, wherein the intermediate stage is any position between the head box and the bottom rail.

(Appendix 12)
Between the head box and the bottom rail, the weft is located one step of the shielding member, and the warp is located on the end side of the shielding member from the elevating member through which the weft passes through the through hole. 11. The solar shading device according to 11.

(Appendix 13)
A headbox that hangs multiple elevating members,
A shielding member that moves up and down by raising and lowering the plurality of raising and lowering members,
A ladder cord suspended from the head box and rotatably supporting each of the shielding members,
It is provided with a bottom rail which is arranged further below the shielding member at the bottom among the plurality of shielding members and to which the elevating member is connected.
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 warps parallel to the elevating member and a weft connecting the pair of warps.
Immediately above the bottom rail, the elevating member through which the through hole is inserted is a solar shielding device located on the end side of the shielding member with respect to the weft.

(Appendix 14)
The solar radiation shielding device according to Appendix 13, wherein the elevating member through which the through hole is inserted is located on the end side of the shielding member with respect to the weft just below the head box.

(Appendix 15)
Headbox and
A shielding member arranged below the head box and
It is provided with an elevating member that hangs down from the head box and elevates the shielding member.
The elevating member is a first elevating member hanging from both ends in the longitudinal direction of the head box and a second elevating member hanging from the head box between the first elevating members, and the shielding member. The second elevating member is provided so as to face each other with the second elevating member.
The shielding member is a solar shielding device including, at both ends in the longitudinal direction, a through hole through which the first elevating member is inserted, and a communication portion that communicates the through hole with the outer edge portion of the shielding member.

(Appendix 16)
A head box having a bottom plate and a front wall and a rear wall erected on the bottom plate, and
A shielding member located below the head box and
An elevating member that is hung from each of the outer surface of the front wall and the outer surface of the rear wall to raise and lower the shielding member.
A ladder cord suspended from the head box and rotatably supporting each of the shielding members,
A first opening for hanging the elevating member from the front wall and the rear wall in preparation for the front wall and the rear wall.
The bottom plate is provided with a second opening for hanging the ladder cord.
A solar shading device provided with a partition portion between the first opening and the second opening so that the first opening and the second opening are discontinuous.

(Appendix 17)
The solar shielding 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 head box.

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

(Appendix 19)
In a cap member in which an elevating member for raising and lowering a shielding member is arranged at one end of a head box in which the elevating member is suspended and closes the end of the head box.
The cap member has a closed surface that closes one end of the head box and a closed surface.
A cap member including a support portion for supporting the elevating member that hangs 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 elevating member.
The cap member according to Appendix 19, wherein the support roller is arranged so that the rotation axis of the support roller extends in the front-rear direction of the head box.

(Appendix 21)
The head box has a ladder cord that rotatably supports each of the shielding members.
The cap member according to Appendix 19 or 20, wherein the drum to which the ladder cord is fixed is rotatably supported so that the rotation axis extends in the longitudinal direction of the head box.

(Appendix 22)
The elevating member that raises and lowers the shielding member is arranged in the head box on which the elevating member is suspended, and the elevating member extending in the head box is led out of the head box so that the shielding member can be moved up and down, and is inside the head box. A solar shielding device provided with an operation unit including a support portion for supporting the elevating member hanging from the head box to the outside of the head box on the end side of the shielding member.

(Appendix 23)
With a headbox with front and back walls,
A shielding member located below the head box and
An elevating member that is hung from each of the outer surface of the front wall and the outer surface of the rear wall to raise and lower the shielding member.
A front-side route changing portion that changes the path of the elevating member hanging from the outer surface of the front wall to a path extending inside the headbox.
A rear surface side path changing portion that changes the path of the elevating member hanging from the outer surface of the rear surface wall to a path extending inside the head box.
It is provided with an elevating control unit into which the elevating member from the front surface side route changing unit and the rear surface side route changing unit is inserted.
The elevating control unit is in a regulated state in which the elevating member allows movement to raise the shielding member and restricts movement in which the shielding member is lowered, and a release state in which the movement restriction for lowering the shielding member is released. And switch,
In the front side route changing portion and the rear surface side route changing portion, the distance between the elevating member from the front surface side route changing portion and the rear surface side route changing portion is made narrower than the width of the insertion end of the elevating control portion. A solar shielding device that inserts the elevating member into the elevating control unit.

(Appendix 24)
In the holder that attaches the elevating member and the ladder cord hanging from the head box to the bottom rail arranged under the shielding member.
With the main body
An engaging portion that is engaged with the bottom rail in preparation for opposite ends of the main body portion in the front-rear direction.
A first groove provided in the engaging portion and to which the warp of the ladder cord extending in the front-rear direction of the bottom rail is engaged,
A holder provided in the engaging portion along with the first groove and provided with a second groove in which the elevating member extending in the front-rear direction of the bottom rail is engaged.

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

11 ... headbox, 11a ... bottom plate, 11b ... front wall, 11c ... rear wall, 11d ... opening, 11x ... projecting piece, 11y ... continuous hole, 12 ... slats, 12a ... front edge, 12b ... trailing edge, 12c ... side edge, 13 ... rudder cord, 13a ... warp, 13b ... weft, 13c ... pico, 13d ... annular member, 14 ... bottom rail, 14a ... front edge groove, 14b ... trailing edge groove, 15a ... first elevating Code, 15a ... Elevating cord, 15b ... Elevating cord, 15b ... Second elevating cord, 15x ... Intermediate part, 15y ... First elevating part, 15z ... Second elevating part, 16 ... Holder, 16a ... Main body part, 16b ... Bearing, 16c ... 1st groove, 16d ... 2nd groove, 16e ... Adjustment member, 16f ... Engagement groove, 16g ... Recessed part, 17a ... Support member, 17b ... Support member, 17c ... Cord guide member, 17d ... Turning Member, 17e ... Operation guide member, 18 ... Equalizer, 18a ... Tilt pole, 19 ... Stopper, 19a ... Insert end, 19b ... Delivery end, 19x ... Case, 19x1 ... Guide groove, 20 ... Guide member, 22 ... Through hole, 30a ... 1st interval, 30b ... 2nd interval, 31 ... front side contact portion, 32 ... rear surface side contact portion, 33 ... front side guide portion, 34 ... rear surface side guide portion, 36 ... opening, 37 ... connection Part, 37a ... 1st arm, 37b ... 2nd arm, 37c ... Guide hole, 38 ... Cylindrical part, 38a ... Rotating support wall, 38b ... Support recess, 38c ... Lead face, 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 ... Top surface, 46d ... Guide rail, 46e ... Recess, 47 ... Guide wall, 48 ... Centerline, 50 ... Partition, 51 ... Support member, 51a ... Side wall, 51b ... Bottom plate, 51c ... Side wall, 52 ... Drum, 52a ... Main body, 52b ... Shaft, 52c ... Shaft hole, 52d ... Locking groove, 53 ... Bearing, 54 ... Through hole, 55 ... Insertion Hole, 56 ... Positioning protrusion, 57 ... Notch, 57a ... Engagement protrusion, 58 ... Swelling part, 62 ... Roller, 63 ... Upper support part, 63a ... Shaft hole, 64 ... Lower support part, 64a ... Shaft Hole, 65 ... side support, 66 ... mounting piece, 66a ... connection piece, 66b ... support piece, 66c ... protrusion, 66d ... protrusion, 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, 86 ... Cap member, 86a ... Closed surface, 86b ... Peripheral wall, 87 ... Support wall, 88 ... Bearing part, 88a ... Support protrusion, 88b ... Shaft hole, 89 ... Through hole, 91a ... Front side contact portion, 91b ... Rear surface side contact portion, 92 ... Connecting arm, 92a ... Connecting hole, 93 ... Connecting protrusion, 94 ... Through hole, 94a ... Half hole, 94b ... Half hole, 95 ... Positioning protrusion, 95a ... Protrusion, 95b ... Protrusion, 96 ... Support roller, 96a ... Rotational support, 97a ... Side wall, 97b ... Side wall, 98 ... Bearing, 98a ... Recess , 98b ... concave, 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 ... Main body part, 133 ... Gear box part, 134 ... Introduction part, 135 ... Connector, 136 ... Derivation part, 136a ... Mounting part, 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 (9)

A head box that hangs the first elevating member and the second elevating member,
A shielding member that moves up and down by raising and lowering the first raising and lowering member and the second raising and lowering member,
A ladder cord suspended from the head box and rotatably supporting each of the shielding members,
In the head box, a support portion for supporting the ladder cord is provided, and a control shaft member for rotating the support portion is provided.
The head box includes a first guide unit, a rotation control unit, an elevating control unit, a turning unit, and a second guide unit in this order from one end portion in the longitudinal direction to the intermediate portion.
The first guide portion guides the first elevating member so as to hang down.
The second guide portion guides the second elevating member so as to hang down.
The rotation control unit rotates the control shaft member in order to rotate the shielding member.
The turning unit rotates the first elevating member extending from the first guide unit toward the turning unit from the turning unit toward the elevating control unit.
In the elevating control unit, the first elevating member rotated by the turning unit and the second elevating member extending from the second guide unit toward the elevating control unit are inserted and inserted into the first elevating control unit. The member and the second elevating member are sent out to the lead-out unit that is sent out of the head box.
The regulation state in which the first elevating member and the second elevating member allow the movement to raise the shielding member and restrict the movement to lower the shielding member, and the movement restriction to lower the shielding member are released. To switch between the release state and
The lead-out unit leads 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 unit or the first guide unit and the rotation control unit, the first elevating member extending from the first guide unit toward the turning unit is guided so as to avoid the elevating control unit. A solar shading device equipped with an avoidance guide. The first aspect of claim 1, wherein the avoidance guide unit guides the first elevating member extending from the first guide unit toward the turning portion so as to avoid the elevating control unit and follow the rear wall of the head box. Sunlight shielding device. The first aspect of claim 1, wherein the avoidance guide unit guides the first elevating member extending from the first guide unit toward the turning portion so as to avoid the elevating control unit and follow the front wall of the head box. Sunlight shielding device. The first aspect of claim 1, wherein the avoidance guide unit guides the first elevating member extending from the first guide unit toward the turning portion by passing above the rotation control unit and avoiding the elevating control unit. Sunlight shielding device. The first aspect of claim 1, wherein the avoidance guide unit guides the first elevating member extending from the first guide unit toward the turning unit to pass under the rotation control unit and avoid the elevating control unit. Sunlight shielding device. The solar shielding unit according to claim 1, wherein the avoidance guide unit guides the first elevating member extending from the first guide unit toward the turning unit to penetrate the rotation control unit and avoid the elevating control unit. Device. The solar radiation shielding device according to claim 1, wherein the avoidance guide unit is integrated with the rotation control unit. The solar radiation shielding device according to claim 1, wherein the avoidance guide unit is a separate body from the rotation control unit. A head box that hangs the first elevating member and the second elevating member,
A shielding member that moves up and down by raising and lowering the first raising and lowering member and the second raising and lowering member is provided.
The head box includes a first guide portion, an elevating member lead-out portion, an elevating control portion, a turning portion, and a second guide portion in this order from one end portion in the longitudinal direction to the intermediate portion.
The first guide portion guides the first elevating member so as to hang down.
The second guide portion guides the second elevating member so as to hang down.
The first elevating member extending from the first guide portion toward the turning portion is positioned on a wall surface of the head box opposite to the wall surface on which the elevating member lead-out portion is provided, and the elevating / lowering member is moved from the turning portion. Turn towards the control unit,
In the elevating control unit, the first elevating member rotated by the turning unit and the second elevating member extending from the second guide unit toward the elevating control unit are inserted and inserted into the first elevating control unit. The member and the second elevating member are sent out to the elevating member lead-out unit,
The regulation state in which the first elevating member and the second elevating member allow the movement to raise the shielding member and restrict the movement to lower the shielding member, and the movement restriction to lower the shielding member are released. To switch between the release state and
The elevating member lead-out unit is a solar shielding device that leads 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.

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