JPWO2015163417A1 - Horizontal blind - Google Patents

Abstract

Provided is a horizontal blind that can adjust the angle of an upper slat group and a lower slat group at different angles with a simple structure. The horizontal blind includes an angle adjustment mechanism 1, an elevating mechanism 2, and an angle switching mechanism 3. The angle adjustment mechanism 1 is a mechanism for adjusting the angle of the slat group 4 and includes ladder cords 1A to 1C, drums 11A to 11C, a square shaft 12, a gear device 13, and an operation rod 14. The elevating mechanism 2 is a mechanism for elevating the slat group 4 and includes elevating cords 20A to 20C, rollers 21A to 21C, an elevating cord stopper 22, a code equalizer 23, and an operation cord 24. The angle switching mechanism 3 is a mechanism for switching the angle of the lower slat group 4A, and includes switching cords 30A and 30C, rollers 31A and 31C, a switching cord stopper 32, a grip 33, and a grip equalizer 34.

Description

  The present invention relates to a horizontal blind in which an upper slat group and a lower slat group can be adjusted at different angles.

  As this type of horizontal blind, for example, there is a technique described in Patent Document 1. This horizontal blind has a first suspension drum with a small diameter and a second suspension drum with a large diameter. And the upper end of the 1st ladder cord which supports an upper stage slat group is attached to the 1st hanging drum, and the middle rail is attached to the lower end of this 1st ladder cord. The upper end of the second ladder cord that supports the lower slat group is attached to the second suspension drum, and the bottom rail is attached to the lower end of the second ladder cord. Thus, when one or both of the first and second suspension drums are rotated, the upper slat group and the lower slat group are rotated via the first and second ladder cords, and the upper slat group and the lower slat group are rotated. One or both of them is in an open state or a closed state.

JP 2009-235670 A

  However, the conventional horizontal blind described above has the following problems. That is, in the horizontal blind described above, two first and second suspension drums having different diameters are necessary, and these first and second suspension drums are combined and rotated together, Since a mechanism for rotating only the suspension drum is required, the structure of the angle adjustment mechanism of the slat itself is complicated. For this reason, the appearance of a horizontal blind that can adjust the angle of the upper slat group and the lower slat group at different angles with a simple structure has been conventionally desired.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide a horizontal blind capable of adjusting the angle of the upper slat group and the lower slat group at different angles with a simple structure. .

  According to the present invention, the slat group consisting of a plurality of slats is rotatably supported by the slat support cords suspended from the head box, and the bottom rail is supported to be movable up and down by the lifting cords suspended from the head box. In the horizontal blind configured as described above, the slat group includes an upper slat group including a plurality of slats including an uppermost slat, and a lower slat including a plurality of slats disposed below the upper slat group. And an angle switching mechanism capable of switching the angle of the lower slat group, the angle switching mechanism supporting the lower slat group on one end side and passing the other end side into the head box. Switch code and pull this switch code into or out of the head box. Operation comprises capable switching unit issuing, horizontal blinds are provided.

  According to such a configuration, the angle of the lower slat group can be changed with a simple configuration. As a result, there is an excellent effect that it is possible to reduce the manufacturing man-hours and the manufacturing cost of the horizontal blind capable of adjusting the upper and lower slat groups at different angles.

Hereinafter, various embodiments of the present invention will be exemplified. The following embodiments can be combined with each other.
Preferably, the slat support cord is a ladder cord composed of a pair of warps and a plurality of wefts, one end of which is connected to the bottom rail, and the other end of the pair of warps is attached by an operation unit. By rotating the drum, one of a pair of warp yarns is moved up and down relatively with respect to the other, whereby an angle adjusting mechanism capable of adjusting the angle of the slat group to a predetermined angle, and one end of the bottom rail And a lifting mechanism capable of lifting and lowering the slat group by pulling the lifting cord with the other end passed through the head box into the head box or pulling it out from the head box, and the switching cord has the one end Is connected to the vicinity of the uppermost slat in the group of lower slats in one warp of the pair of warps.

With this configuration, the horizontal blind can be fully opened or fully closed by operating the angle adjusting mechanism and adjusting the angle of the slat group using the operation unit. Further, by operating the elevating mechanism, the slat group can be pulled up sequentially from the bottom or sequentially lowered from the top.
Furthermore, when the angle switching mechanism is operated by the switching operation unit with the slat group fully opened, and the switching cord is pulled into the head box, the lower side of the warp thread to which the switching cord is connected is pulled up, and the lower slat group is tilted. . As a result, the upper part of the horizontal blind is kept open and the lower part is closed.
On the other hand, the angle adjustment mechanism is operated so as to pull up the warp that is not the warp to which the switching cord is connected, and the slat group is fully closed, and then the angle switching mechanism is operated so that the switching cord is connected to the head box. When retracted, the tilted lower slats return to their original state. As a result, the upper part of the horizontal blind is kept closed and the lower part is opened.

Preferably, the operation portion of the angle adjustment mechanism is a cylindrical operation rod having one end attached to the outside of the head box and capable of rotating the drum, and the switching operation portion of the angle switching mechanism passes through the head box. It was set as the structure which is the other end part side of the switching cord with which it pulled out outside the head box and was penetrated in the operation bar from the one end part side of the operation bar.
With this configuration, the horizontal blind can be fully opened or fully closed by operating the operating rod and rotating the drum of the angle adjusting mechanism. Further, only the lower slat group can be closed or opened by operating the angle switching mechanism by pulling or returning the other end side of the switching cord inserted into the operation rod.

Preferably, the cylindrical grip is slidable to the outside of the operating rod so that the convex portion provided on the inside of the one end engages with the convex provided on the outside of the other end of the operating rod. The other end of the switching cord that is fitted and pulled out from the other end of the operation rod is connected to the other end of the grip.
With this configuration, when the grip to which the other end of the switching cord is connected is pulled, the lower slat group is tilted. Further, when the grip is pulled to the full, the convex portion of the grip engages with the convex portion of the operating rod, and the grip cannot be pulled. In such a state, the inclination angle of the lower slat group is maximized. Further, by returning the grip, the lower slat group returns to the original angle. Therefore, by setting the tilt angle of the lower slat group to the desired value with the grip fully pulled, the lower slat group can be tilted to the desired angle easily and reliably by the grip operation. Can do.
According to such a configuration, there is an effect that the lower slat group can be easily and surely inclined to a desired angle by the grip operation.

Preferably, the cap member is detachably fitted into the opening on the other end side of the grip, and the other end of the switching cord is connected to the cap member.
With this configuration, when the grip is fully pulled and the switching cord cannot be pulled any more, the switching cord can be further pulled by pulling the cap member off the grip.

  Preferably, the notch is provided at one end in the width direction of the slat, and the one end of the switching cord is connected to the warp at a position opposite to the notch of the pair of warps.

Preferably, after the switching cord is passed from one direction between the upper slat and the weft, the switching cord is passed from the other direction between the slat and the weft at the position of the slat below the slat. After weaving into the weft, one end is connected to the warp. Configured.
With this configuration, since the switching cord is knitted into the weft, when the slat group is raised by the elevating mechanism, the switching cord does not loosen and hang from the horizontal blind. According to such a configuration, it is possible to prevent the switching cord from loosening when the slat group is raised, so that it is possible to prevent the occurrence of a situation in which the slat group cannot be caught by the loose switching cord and lowered. can do.

Preferably, the plurality of ring portions are arranged at predetermined intervals from the portion where the switching cord is connected to the warp yarn to which the switching cord is connected, toward the head box side, and the switching cord is passed through the plurality of ring portions, The one end is connected to the warp.
With such a configuration, since the switching cord is passed through the plurality of ring portions, when the slat group is raised by the elevating mechanism, the switching cord does not loosen and hang down from the horizontal blind. According to such a configuration, there is an effect that the number of steps of the lower slat group operated by the angle switching mechanism can be easily changed.

Preferably, the hook portion is provided at one end of the switching cord, and the hook portion is detachably locked to a ring portion located at a connection portion of the switching cord.
With such a configuration, by locking the hook portion to the ring portion at a desired position, the slat group after the portion where the hook portion is locked can be operated by the angle switching mechanism. Moreover, the slat group of a desired number of steps can be operated by removing the hook part from the wheel part and locking it to the wheel part at a desired position. According to such a configuration, it is possible to prevent the switching cord from loosening when the slat group is raised, so that it is possible to prevent the occurrence of a situation in which the slat group cannot be caught by the loose switching cord and lowered. can do.

It is a front view which shows the horizontal blind concerning 1st Embodiment of this invention. It is arrow AA sectional drawing of FIG. It is a top view of a horizontal blind. FIG. 4 is a partially enlarged view of FIG. 3. It is arrow BB sectional drawing of FIG. It is a perspective view of the stopper for raising / lowering cords and the stopper for switching cords shown with the spacer removed. It is explanatory drawing which shows the connection state of the switching cord and the warp yarn of a ladder cord. It is an external view of the grip attached to the operation rod. It is sectional drawing for demonstrating the function of a grip and a grip equalizer. It is a partial front view of the horizontal blind which shows the state which the lower stage slat group closed. It is sectional drawing of the horizontal blind which shows the state which the lower slat group closed. It is the schematic for demonstrating the full open state of a horizontal blind. It is the schematic for demonstrating the fully closed state of a horizontal blind. It is the schematic for demonstrating the raising / lowering state of a horizontal blind. It is the schematic for demonstrating the open / closed closed state of a horizontal blind. It is the schematic for demonstrating the open / closed open state of a horizontal blind. It is the schematic for demonstrating the state which operated the angle switching mechanism in the state which raised the horizontal blind. It is the schematic for demonstrating the state which operated the raising / lowering mechanism from the state shown in FIG. It is the schematic which shows the state which returned the horizontal blind to the normal open state. It is the schematic which shows the horizontal blind concerning 2nd Embodiment of this invention. It is sectional drawing for demonstrating the stopper for switching cords. It is sectional drawing for demonstrating the function of the stopper for switching cords. It is a perspective view which shows the principal part of the horizontal blind which concerns on 3rd Embodiment of this invention. It is a perspective view which shows the principal part of the horizontal blind which concerns on 4th Embodiment of this invention. It is a machine figure showing composition of a horizontal blind concerning a 6th embodiment of this invention. It is a machine figure showing the composition of the horizontal blind concerning a 7th embodiment of this invention. It is a machine figure showing composition of a horizontal blind concerning an 8th embodiment of this invention. It is a machine figure showing the composition of the horizontal blind concerning a 9th embodiment of this invention. (A)-(b) is the schematic for demonstrating operation | movement of the horizontal blind which concerns on 9th Embodiment of this invention. (A)-(b) is the schematic for demonstrating operation | movement of the horizontal blind which concerns on 9th Embodiment of this invention. (A)-(c) is the schematic for demonstrating operation | movement of the horizontal blind which concerns on 9th Embodiment of this invention.

  The best mode of the present invention will be described below with reference to the drawings.

(First embodiment)
1 is a front view showing a horizontal blind according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, and FIG. 3 is a top view of the horizontal blind. . As shown in FIG. 1, the horizontal blind according to this embodiment includes an angle adjustment mechanism 1, an elevating mechanism 2, and an angle switching mechanism 3.

  The angle adjustment mechanism 1 is a mechanism capable of adjusting the angle of the slat group 4 to a predetermined angle, and is a drum 11A supported by each of the three sets of ladder cords 1A to 1C and the three sets of support members 5A to 5C. ˜11C, a square shaft 12, a gear device 13, and an operation rod 14 as an operation unit.

  Each ladder cord 1A (1B, 1C) is a cord for supporting a plurality of slat groups 4. As shown in FIG. 2, a pair of warp yarns 10a, 10b and a plurality of pairs of weft yarns 10c, 10d are used. Is formed. Specifically, the lower ends as one ends of the warps 10a, 10b are connected to the bottom rail 60, and the upper ends as the other ends of the warps 10a, 10b are the support members 5A (5B, 5C) in the head box 6. Are connected to the drum 11A (11B, 11C). A plurality of pairs of weft yarns 10c, 10d are joined between the warp yarns 10a, 10b at regular intervals, and each slat 40 is supported by each weft yarn 10c, 10d.

  4 is a partially enlarged view of FIG. 3, and FIG. 5 is a cross-sectional view taken along the line BB in FIG. As shown in FIGS. 3 and 4, all the drums 11 </ b> A to 11 </ b> C are connected to one angular shaft 12 having a hexagonal cross section. Thereby, the drums 11 </ b> A to 11 </ b> C are rotated integrally by rotating the angular shaft 12. Specifically, as shown in FIG. 5, the entire square shaft 12 to which the drum 11 </ b> A (11 </ b> B, 11 </ b> C) is coupled is rotatably held by the bearing portion 50 in each support member 5 </ b> A (5 </ b> B, 5 </ b> C). Has been. As shown in FIG. 4, the right end portion of the angular shaft 12 is connected to the gear device 13 in a gear mechanism.

  In FIG. 1, the operating rod 14 is a cylindrical body arranged outside the head box 6, and an upper end portion 14a as one end portion is connected to the gear device 13 via a universal joint 14A. Thus, when the operating rod 14 is rotated forward or backward in the circumferential direction, the rotation is transmitted to the angular shaft 12 through the universal joint 14A and the gear device 13, and the drum 11A (11B, 11C) is It rotates corresponding to the rotation of the shaft 12.

  In this embodiment, in FIG. 2, the drum 11 </ b> A (11 </ b> B, 11 </ b> C) rotates counterclockwise by rotating the operation rod 14 forward. As a result, the warp yarn 10a of each ladder cord 1A (1B, 1C) rises and the warp yarn 10b descends, and the slat group 4 rotates counterclockwise to be fully closed. In this state, the drum 11A (11B, 11C) rotates clockwise by rotating the operating rod 14 in the reverse direction. As a result, the warp yarn 10a of each ladder cord 1A (1B, 1C) is lowered and the warp yarn 10b is raised, and the slat group 4 is rotated clockwise to return to the fully opened state shown in FIG. Further, when the rotation is continued as it is, the slat group 4 is in the reverse fully closed state.

  In FIG. 1, an elevating mechanism 2 is a mechanism capable of elevating and lowering a slat group 4. As shown in FIGS. 2 to 5, three elevating cords 20A to 20C and three sets of support members 5A to 5C are provided. The rollers 21 </ b> A to 21 </ b> C provided inside, a lifting / lowering cord stopper 22, a cord equalizer 23, and an operation cord 24.

  As shown in FIGS. 1 and 2, each lifting cord 20 </ b> A (20 </ b> B, 20 </ b> C) is a cord that moves the slat group 4 up and down sequentially by moving the bottom rail 60 up and down, and the lower end as one end is the bottom rail. 60, and the upper end side as the other end side is drawn into the head box 6. Specifically, as shown in FIG. 5, the roller 21A (21B, 21C) is rotatably disposed in the lower left of the drum 11A (11B, 11C) in the support member 5A (5B, 5C), and is moved up and down. The upper end side of the cord 20A (20B, 20C) is hung on the roller 21A (21B, 21C). Then, as shown in FIG. 4, the elevating cord 20 </ b> A (20 </ b> B, 20 </ b> C) is guided through the head box 6 to the elevating cord stopper 22 side and inserted into the elevating cord stopper 22.

  FIG. 6 is a perspective view of the lifting / lowering cord stopper and the switching cord stopper shown with the spacer removed. As shown in FIG. 4, the spacer 61 is attached to the right end side of the head box 6, and the lifting / lowering cord stopper 22 is housed in the spacer 61 together with the switching cord stopper 32 described later. As shown in FIG. 6, the spacer 61 is formed in a box shape, and includes a hole 61 a through which the square shaft 12 is inserted, a hole 61 b through which the three lifting cords 20 </ b> A to 20 </ b> C are inserted, and two switching described later. A hole 61c through which the cords 30A and 30C are inserted is formed on the front surface (left side surface in FIG. 6) and the rear surface (not shown).

  The elevator cord stopper 22 is a known stopper, and in this embodiment, the stopper device described in Japanese Patent No. 3479038 is applied. That is, in FIG. 4, when the lifting / lowering cord 20A (20B, 20C) inserted through the lifting / lowering cord stopper 22 is pulled to the right by hand, the lifting / lowering cord 20A (20B, 20C) hung outside the head box 6 is obtained. The roller 21A (21B, 21C) is raised, the bottom rail 60 (see FIG. 2) is pulled up, and the slat group 4 is raised. Here, when the pulling operation is stopped and the hand is released from the lifting / lowering cord 20A (20B, 20C), the slat group 4 tries to drop together with the bottom rail 60, but the lifting / lowering cord stopper 22 is actuated and its freedom is reached. Fall is prevented. If the lifting cord 20A (20B, 20C) is pulled to the right side and released while the free fall preventing function of the lifting cord stopper 22 is activated, the free falling prevention function of the lifting cord stopper 22 is released. Thus, the slat group 4 freely falls together with the bottom rail 60, and the lifting cord 20A (20B, 20C) in the head box 6 is pulled back to the left side.

  The three lifting / lowering cords 20 </ b> A to 20 </ b> C are inserted into the lifting / lowering cord stopper 22 having the above-described function, and then are pulled out of the head box 6 and connected to the cord equalizer 23. As shown in FIG. 1, the upper end of the operation cord 24 is connected to the code equalizer 23 and the lower end is connected to the bottom rail 60. Thereby, the raising / lowering of the slat group 4 can be operated by pulling down the operation cord 24 or releasing the pulling force on the operation cord 24.

  1, the angle switching mechanism 3 is a mechanism that can switch only the lower slat group 4A of the slat groups 4 to a predetermined angle. As shown in FIG. 4, two switching cords 30A, 30C, rollers 31A and 31C provided in the support members 5A and 5C, a switching cord stopper 32, a grip 33 as a switching operation portion, and a grip equalizer 34 as a cap member.

  As shown in FIG. 1, each switching cord 30A (30C) is pulled out from the head box 6, and the lower end as one end thereof is connected to one warp thread 10a in the ladder cord 1A (1C). FIG. 7 is an explanatory diagram showing a connection state between the switching cord 30A (30C) and the warp yarn 10a of the ladder cord 1A (1C). As shown in FIG. 7A, the switching cord 30A (30C) is configured so that the uppermost slat 40 of the lower slat group 4A is sewn while the weft 10d supporting each slat 40 of the upper slat group 4B is sewn. The lower end is connected to the warp yarn 10a at the vicinity.

  Specifically, as shown in FIG. 7B, in the upper slat group 4B, the switching cord 30A (30C) is viewed from the right side of the figure with the lower side of the weft 10d on the upper slat 40 as one direction. After being knitted so as to dive, the weft 10d on the lower slat 40 is knitted so as to dive from the left direction in the figure as the other direction. The switching cord 30A (30C) is also knitted in the weft yarn 10d of the slat 40 described below, and the lower end thereof is connected to the warp yarn 10a in the vicinity of the lower slat group 4A. In this embodiment, an example in which the switching cord 30A (30C) is knitted with respect to the weft 10d of the slat 40 of each stage of the upper slat group 4B is shown. The switching cord 30A (30C) can be knitted into the weft yarn 10d of the slat 40 at an arbitrary number of steps such as every three steps.

  As described above, the lower end of the switching cord 30A (30C) is connected to the warp thread 10a of the ladder cord 1A (1C), but the upper end side as the other end side is as shown in FIGS. In addition, it is introduced into the head box 6. Specifically, as shown in FIG. 5, the roller 31A (31C) is rotatably disposed in the support member 5A (5C) at the lower right of the drum 11A (11C), and the switching cord 30A (30C) The upper end side is hung on this roller 31A (31C). As shown in FIG. 4, the switching cord 30 </ b> A (30 </ b> C) is guided to the switching cord stopper 32 side in the head box 6 and is inserted into the switching cord stopper 32.

  This switching cord stopper 32 is also a known stopper having the same structure as the lifting / lowering cord stopper 22. The free fall prevention function of the switching cord stopper 32 with respect to the switching cord 30A (30C) will be described later.

  The two switching cords 30 </ b> A and 30 </ b> C are inserted into the switching cord stopper 32 having the above function, and then pulled out of the head box 6, and then passed through the operation rod 14 and the grip 33. And the edge part is connected to the grip equalizer 34 (refer FIG. 1).

  FIG. 8 is an external view of the grip 33 attached to the operation rod 14, and FIG. 9 is a cross-sectional view for explaining the functions of the grip 33 and the grip equalizer 34. In order to make the inside of the member easy to see, in FIG. 9, the diameters of the operation rod 14, the grip 33, and the grip equalizer 34 are shown larger than the diameters shown in FIG.

  As shown in FIG. 8, the grip 33 is a cylindrical body having a predetermined length and is slidably fitted to the outside of the operation rod 14. Specifically, as shown in FIG. 9A, the large-diameter grip 33 is fitted on the outside of the small-diameter operation rod 14 so as to be slidable in the length direction. A ring-shaped retaining member 14B as a convex portion is attached to the outside of the lower end portion 14b of the operating rod 14, and an end wall 33A that can be engaged with the retaining member 14B is formed at the upper end of the grip 33. . Further, a retaining member 33B as a convex portion is mounted inside the lower end portion 33b of the grip 33, and the grip equalizer 34 is fitted into the lower end portion 33b as the other end portion of the grip 33 from the lower end opening 33c. ing. As a result, the retaining member 33B is interposed between the grip equalizer 34 and the retaining member 14B of the operating rod 14, and engages with the grip equalizer 34 and the retaining member 14B of the operating rod 14.

  The switching cords 30 </ b> A and 30 </ b> C are inserted from the upper end portion 14 a of the operation rod 14 fitted with such a grip 33 and introduced into the grip 33. The ends of the switching cords 30 </ b> A and 30 </ b> C are tied to the grip equalizer 34.

  When the operating rod 14, the grip 33, and the grip equalizer 34 have the above-described structure, when the grip 33 is pulled downward by a distance S as shown by an arrow in FIG. 33A engages with the retaining member 14B of the operation rod 14. When the grip 33 is returned to the upper side of the operating rod 14 by the distance S, the retaining member 33B of the grip 33 is engaged with the retaining member 14B of the operating rod 14, as shown in FIG. Therefore, by operating the grip 33, the switching cords 30A and 30C can be drawn into the operating rod 14 side or returned by the distance of the stroke S. Further, as shown by the arrow in FIG. 9C, the switching cords 30A and 30C can be pulled more than the stroke S by pulling the grip equalizer 34 from the grip 33 and pulling it.

Here, the function of the angle switching mechanism 3 will be described.
FIG. 10 is a partial front view of the horizontal blind showing a state where the lower slat group 4A is closed, and FIG. 11 is a cross-sectional view of the horizontal blind showing a state where the lower slat group 4A is closed.
As shown to (a) of FIG. 9, in the state which has returned the grip 33 to the upper end part 14a side of the operation stick | rod 14, the tension | tensile_strength is not added to switching cord 30A (30C). For this reason, the lower slat group 4A is not tilted and is in an open state. From this state, as shown in FIG. 9B, when the grip 33 is pulled by the full stroke S, the switching cord 30A (30C) is drawn to the operating rod 14 side by the stroke S only.

  Then, as shown in FIGS. 10 and 11, the switching cord 30A (30C) pulled out from the head box 6 is drawn by the stroke S into the head box 6 and the ladder in which the switching cord 30A (30C) is connected. Of the warp yarn 10a of the cord 1A (1C), the warp yarn portion after the connecting portion is pulled up by the stroke S. As a result, the lower slat group 4A is inclined and is in a closed state.

  Here, when the lifting operation is stopped and the hand is released from the grip 33, the switching cord 30A (30C) freely falls and the lower slat group 4A attempts to return to the open state, but the switching cord stopper 32 (see FIG. 4 and FIG. 6) operates, the switching cord 30A (30C) is prevented from falling, and the lower slat group 4A maintains the closed state. At this time, the grip 33 is pulled back slightly above the lowest position shown in FIG. Therefore, in this state, when the grip 33 is slightly lowered and released, the free fall prevention function of the switching cord stopper 32 is released. Then, as shown in FIGS. 1 and 2, the switching cord 30A (30C) is pulled out from the head box 6 by the stroke S, the tensile force on the warp yarn 10a is released, and the lower slat group 4A is returned to the original open state. Return.

  Next, a usage example of the horizontal blind according to this embodiment will be described. FIG. 12 is a schematic diagram for explaining the fully open state of the horizontal blind, FIG. 13 is a schematic diagram for explaining the fully closed state of the horizontal blind, and FIG. It is the schematic for doing. In the schematic diagrams of FIGS. 12 to 19, the elevating mechanism 2 and the angle switching mechanism 3 are arranged and displayed on both sides of the ladder cords 1 </ b> A to 1 </ b> C of the angle adjusting mechanism 1 for easy understanding.

  First, in the horizontal blind of this embodiment, as shown in FIG. 12, the drum 11A (11B, 11C) of the angle adjustment mechanism 1 is in the initial position, and the lifting cord 20A (20B, 20C) of the lifting mechanism 2 The initial state is a case where the switching cord 30A (30C) of the angle switching mechanism 3 hangs down from the head box 6 to open the slat group 4 and the horizontal blind is fully open.

  In this state, as shown in FIG. 13, when the operation rod 14 of the angle adjusting mechanism 1 is rotated forward, the drum 11A (11B, 11C) rotates counterclockwise, and the ladder cord 1A (1B, 1C) is rotated. The warp 10a is pulled up and the warp 10b is pulled down. As a result, the slat group 4 is tilted upward and the horizontal blind is fully closed. Therefore, when the operating rod 14 of the angle adjusting mechanism 1 is rotated in the reverse direction from this state, the drum 11A (11B, 11C) rotates clockwise, and the warp yarn 10b of the ladder cord 1A (1B, 1C) is pulled up. The warp yarn 10a is pulled down, and the horizontal blind returns to the fully open state.

  As shown in FIG. 14, when the operation cord 24 of the lifting mechanism 2 is pulled down with the horizontal blind fully opened, the lifting cord 20A (20B, 20C) hanging from the head box 6 is pulled up, and the bottom rail 60 Rises and the slat group 4 rises sequentially from the lower side. When the hand is released from the operation cord 24 with the slat group 4 pulled up to the desired height, the free fall prevention function of the lifting cord stopper 22 is activated, and the lowering of the lifting cord 20A (20B, 20C) is prevented. The slat group 4 stops at a desired height position.

  From this state, after pulling down the operation cord 24 and releasing the hand, the free fall prevention function of the lifting cord stopper 22 is released, and the slat group 4 falls together with the bottom rail 60, and the horizontal blind is shown in FIG. Return to the state shown in FIG.

  By the way, when the slat group 4 is raised by the elevating mechanism 2, there is a possibility that the switching cord 30A (30C) of the angle switching mechanism 3 is loosened and hangs down for a long time as shown by a broken line. When the slat group 4 is lowered in such a state, the slat group 4 is caught by the loose switch cord 30A (30C) and does not descend.

  However, in this embodiment, as shown in FIG. 7, the switching cord 30A (30C) is knitted into the weft yarn 10c of the ladder cord 1A (1C). For this reason, when the slat group 4 is raised by the elevating mechanism 2, the switching cord 30A (30C) rises integrally with the warp yarns 10a, 10b and the weft yarns 10c, 10d of the ladder cord 1A (1C), so There is no.

  As described above, according to the horizontal blind of this embodiment, the horizontal blind can be easily fully opened, fully closed, and lifted by using the operation rod 14 of the angle adjustment mechanism 1 and the operation cord 24 of the lifting mechanism 2. Can do.

  Next, a usage example in which the angle state of the lower slat group 4A and the upper slat group 4B of the horizontal blind is made different will be described. FIG. 15 is a schematic diagram for explaining the open / closed state of the horizontal blind, and FIG. 16 is a schematic diagram for explaining the open / closed state of the horizontal blind. In the initial state shown in FIG. 12, when the grip 33 of the angle switching mechanism 3 is pulled down and the switching cord 30A (30C) hanging from the head box 6 is raised by the stroke S as shown in FIG. 4A tilts and closes.

  In this state, when the hand is released from the grip 33, the free fall prevention function of the switching cord stopper 32 is activated, the lowering of the switching cord 30A (30C) is stopped, and the lower slat group 4A is still in a tilted state. . As a result, since the upper slat group 4B is opened and the lower slat group 4A is closed, the horizontal blind is in the upper open / closed state.

  In the initial state shown in FIG. 12, when the operation rod 14 of the angle adjusting mechanism 1 is rotated reversely as shown in FIG. 16A, the warp yarn 10b of the ladder cord 1A (1B, 1C) is pulled up. When the warp yarn 10a is pulled down, the slat group 4 is tilted in a state where it rises to the left, and the horizontal blind is in the reverse fully closed state. In this state, as shown in FIG. 16B, when the grip 33 of the angle switching mechanism 3 is fully pulled, the switching cord 30A (30C) is raised by the stroke S, and the warp yarn 10a is lowered from the initial state. Is raised. As a result, since the lower slat group 4A is opened, the horizontal blind is in the upper closed and opened state.

  As described above, according to the horizontal blind of this embodiment, the horizontal blind can be easily opened and closed by using the operation rod 14 of the angle adjusting mechanism 1 and the grip 33 of the angle switching mechanism 3. It can be in the open state.

  Next, a special usage example of the horizontal blind will be described. FIG. 17 is a schematic diagram for explaining a state in which the angle switching mechanism 3 is operated with the horizontal blind raised, and FIG. 18 explains a state in which the lifting mechanism 2 is operated from the state shown in FIG. FIG. 19 is a schematic view showing a state in which the horizontal blind is returned to a normal open state.

  When the entire slat group 4 is raised by the elevating mechanism 2 from the initial state shown in FIG. 12, the switching cord 30A (30C) of the angle switching mechanism 3 remains in an excess state. become. In this state, as long as the slat group 4 is lowered by the lifting mechanism 2, the switching cord 30 </ b> A (30 </ b> C) does not interfere with the lowering of the slat group 4.

  However, as shown in FIG. 17B, if the grip 33 of the angle switching mechanism 3 is pulled by the stroke S in a state where the entire slat group 4 is raised, the switching cord 30A coming out of the head box 6 is drawn. (30C) is pulled up and there is no remainder. At this time, since the downward tension is not applied to the switching cord 30A (30C), the free fall preventing function of the switching cord stopper 32 is not activated.

  When the slat group 4 is lowered by the elevating mechanism 2 in this state, when the switching cord 30A (30C) is slightly lowered together with the warps 10a and 10b, the free fall prevention function of the switching cord stopper 32 is activated. Tension is generated in the switching cord 30A (30C) from the switching cord stopper 32 to the warp yarn 10a side. As a result, as shown in FIG. 18A, only the warp 10b on the lifting cord 20A (20B, 20C) side is lowered, but the warp 10a on the switching cord 30A (30C) side is switched to the switching cord 30A (30C). Will not descend.

  Therefore, it is necessary to actuate the free fall prevention function of the switching cord stopper 32 and loosen the switching cord 30A (30C). However, the switching cord 30A (30C) from the switching cord stopper 32 to the grip 33 side is loosened, and this tension is not applied.

  For this reason, even if the grip 33 is moved up and down, the free fall prevention function of the switching cord stopper 32 is not released. In such a case, as shown in FIG. 18B, the grip equalizer 34 is removed from the grip 33 and pulled largely. Thereby, the slack of the switching cord 30A (30C) from the switching cord stopper 32 to the grip 33 side is eliminated, and the switching cord 30A (30C) can be pulled toward the grip 33 side with respect to the switching cord stopper 32. The free fall prevention function of the switching cord stopper 32 can be released.

  Thereby, the switching cord 30A (30C) coming out of the head box 6 is loosened, and as shown in FIG. 19, the warp yarn 10a on the switching cord 30A (30C) side becomes the warp yarn 10b on the lifting cord 20A (20B, 20C) side. At the same time, the entire slat group 4 falls and the horizontal blind returns to the initial state shown in FIG.

  In the present embodiment, the slat group 4 is supported by the ladder cord 1A (1C) and the switching cord 30A (30C). Accordingly, these cords correspond to “slat support cords” in the claims.

(Second Embodiment)
Next explained is the second embodiment of the invention. FIG. 20 is a schematic view showing a horizontal blind according to the second embodiment of the present invention. In the first embodiment, the switching cord stopper 32 of the angle switching mechanism 3 is provided in the head box 6. However, in this embodiment, as shown in FIG. Mounted on the grip 33 of the mechanism 3. That is, as shown in FIG. 20, the switching cord stopper 32 used in the first embodiment is eliminated, and a switching cord stopper 32 ′ that can be operated with the grip 33 is provided in the grip 33.

  FIG. 21 is a cross-sectional view for explaining the switching cord stopper 32 ′. As shown in FIG. 21, the grip 33 of this embodiment is also slidably fitted to the outside of the operation rod 14 of the angle adjustment mechanism 1, as in the first embodiment, and the grip equalizer 34 is connected to the lower end of the grip 33. It is fitted in and out of the unit. The switching cord stopper 32 ′ is composed of a pair of levers 35, 35 and a retaining member 14 B of the operating rod 14.

  Specifically, a pair of long holes 33d and 33d are formed at locations facing the circumferential surface of the grip 33, and leaf springs 36 and 37 are mounted on the upper and lower portions of each long hole 33d. Each lever 35 is attached to a leaf spring 36, 37 mounted in each elongated hole 33d, and an upper portion 35a and a lower portion 35b of each lever 35 are urged outward by the leaf springs 36, 37. . Thus, when the lower portion 35b of each lever 35 is pushed inward against the urging force of the leaf spring 37 as indicated by an arrow A, the upper portion 35a of each lever 35 is moved to the leaf spring as indicated by an arrow B. It is pushed outward by the urging force of 36.

  Here, the function of the switching code stopper 32 'will be described. FIG. 22 is a cross-sectional view for explaining the function of the switching cord stopper 32 ′. In FIG. 20, when the lower slat group 4A is closed, the grip 33 is slid downward by the stroke S. Then, as shown in FIG. 22A, the end wall 33A of the grip 33 is engaged with the retaining member 14B of the operation rod 14, and in FIG. 20, the switching cords 30A and 30C connected to the warp yarn 10a are The warp yarn 10a is pulled up by the stroke S, and the lower slat group 4A is closed.

  At this time, since the lower slat group 4A and the bottom rail 60 tend to fall due to their own weight, the switching cords 30A and 30C coming out of the head box 6 are pulled downward. Since the grip 33 is connected to the switching cord 30A (30C) through the grip equalizer 34, the grip 33 may be pulled upward in FIG. 22A, and the lower slat group 4A may return to the open state. There is. However, when the grip 33 is pulled down by the stroke S, the upper portion 35a of each lever 35 is engaged with the retaining member 14B of the operation rod 14 from below. Therefore, the free fall prevention function of the switching cord stopper 32 ′ is in operation, the grip 33 is prevented from rising, and the lower slat group 4A is kept closed.

  When returning the lower slat group 4A to the open state, the lower portion 35b of each lever 35 is pushed against the urging force of the leaf spring 37, as shown in FIG. As a result, the upper portion 35a of each lever 35 is pushed outward by the urging force of the leaf spring 36, the engagement of the operating rod 14 with the retaining member 14B is released, and the free fall prevention function of the switching cord stopper 32 '. Is released. As a result, in FIG. 20, the grip 33 rises as the lower slat group 4A and the bottom rail 60 freely fall, and the lower slat group 4A returns to the original open state.

  Further, when it is desired to pull the switching cords 30A and 30C further downward from the state shown in FIG. 22B, the grip equalizer 34 is removed from the grip 33 and lowered as shown in FIG. 22C. This is possible. Since other configurations, operations, and effects are the same as those of the first embodiment, description thereof is omitted.

(Third embodiment)
Next explained is the third embodiment of the invention. FIG. 23 is a perspective view showing a main part of a horizontal blind according to the third embodiment of the present invention. As shown in FIG. 23, in the horizontal blind according to this embodiment, the plurality of loop portions 38 are attached to the warp yarn 10a to which the switching cord 30A (30C) is connected. Specifically, a plurality of loop portions 38 were attached to the warp yarn 10a at regular intervals from the head box 6 (see FIG. 1) to the vicinity of the uppermost slat 40 of the lower slat group 4A. Then, the hook portion 39 is provided at the lower end as one end of the switching cord 30A (30C), and the switching cord 30A (30C) is passed through the plurality of ring portions 38, and then the hook portion 39 is moved to the plurality of lowermost rings. The switch cord 30A (30C) was connected to the warp yarn 10a by engaging with the portion 38.

  With this configuration, since the switching cord 30A (30C) is passed through the plurality of wheel portions 38, when the slat group 4 is raised by the elevating mechanism 2, the switching cord 30A (30C) is slack and hangs down for a long time. There is nothing. Further, by attaching a plurality of loop portions 38 to the entire warp yarn 10a at regular intervals and locking the hook portions 39 to the loop portions 38 at a desired position, the lower slat group 4A having a desired number of stages can be operated. . Since other configurations, operations, and effects are the same as those in the first and second embodiments, description thereof is omitted.

(Fourth embodiment)
Next explained is the fourth embodiment of the invention. FIG. 24 is a perspective view showing a main part of a horizontal blind according to the fourth embodiment of the present invention. As shown in FIG. 24, in the horizontal blind according to this embodiment, a notch 41 is provided at one end in the width direction of each slat 40. Specifically, the notch 41 is formed at the slat end of the ladder cord 1A (1B, 1C) on the warp yarn 10b side, and the switching cord 30A (30C) is connected to the warp yarn 10a of the ladder cord 1A (1C). ,
Since other configurations, operations, and effects are the same as those in the first to third embodiments, description thereof is omitted.

(Fifth embodiment)
Next, a fifth embodiment of the present invention will be described.
In the fully closed state shown in FIG. 13, when the operating rod 14 is rotated in the direction to open the slat group 4, the slat group 4 is rotated to the open state shown in FIG. 12, and the operating rod 14 is further rotated in the same direction. And the slat group 4 is rotated to the reverse fully closed state shown in FIG. In this manner, when the user unconsciously pulls down the grip 33 when the slat group 4 is rotated from the fully closed state to the reverse fully closed state, the entire slat group 4 is not in the reverse fully closed state. In addition, as shown in FIG. 16B, there is a problem that the upper slat group 4B may be in a reverse fully closed state and the lower slat group 4A may be in an open state.

  The present embodiment is provided with a point that a grip displacement suppressing portion that suppresses the displacement of the grip 33 with respect to the operation rod 14 is provided in order to solve the above problem. Other configurations of the present embodiment are the same as those of the first embodiment.

  The grip displacement suppression unit may have any function as long as it has a function of suppressing the relative position of the grip 33 with respect to the operation rod 14 from the state shown in FIG. 9A to the state shown in FIG. 9B. Further, an urging means (e.g., a coil spring) provided in the grip 33, a snap structure in which the grip 33 and the operation rod 14 are snap-engaged, and the like can be given.

  When the coil spring is disposed in the grip 33, for example, one end of the coil spring comes into contact with the partition wall 33A of the grip 33 shown in FIG. 9A, and the other end comes into contact with the retaining member 14B attached to the operation rod 14. Can be provided.

(Sixth embodiment)
Next, a sixth embodiment of the present invention will be described with reference to FIG. The present embodiment is similar to the first embodiment, and hereinafter, differences will be mainly described.

  In the present embodiment, as shown in FIG. 25, the warp yarn 10a of the ladder cord 1A is divided at a position between the upper slat group 4B and the lower slat group 4A, and the warp yarn 10a that supports the lower slat group 4A is The switching cord 30A is connected to the warp yarn 10a at a connection point 66 in the vicinity of the uppermost slat. In the following description, the ladder code 1A and related members (switching code 30A, roller 31A, etc.) will be described as an example, but the same description applies to the ladder code 1C and related members. In the drawings used for explaining the sixth to ninth embodiments, the lifting mechanism 2 is not shown, and the switching operation unit is simplified.

  In the first embodiment, since the maximum distance between adjacent slats is defined by the distance between the wefts 10c that support the slats 40 of each stage, the distance between the adjacent slats 40 is wider than the distance between the adjacent wefts 10c. Thus, the lower slat group 4A could not be rotated. On the other hand, in this embodiment, since the warp yarn 10a is divided, the maximum distance between the adjacent slats 40 on the warp yarn 10a side is not defined by the interval between the adjacent weft yarns 10c. For this reason, in this embodiment, as shown in FIG. 25, it is possible to place the lower slat group 4A in the reverse fully closed state while leveling the slats 40 of the upper slat group 4B.

  In the present embodiment, the upper slat group 4B can adjust the tilt angle by rotating the drum 11A, and the lower slat group 4A can adjust the tilt angle by rotating the drum 11A and operating the switching cord 30A. Can do.

  In this embodiment, the slat group 4 is supported by the ladder cord 1A and the switching cord 30A. Accordingly, these cords correspond to “slat support cords” in the claims.

  Instead of the warp yarn 10a, the warp yarn 10b may be divided and the switching cord 30A may be connected to the warp yarn 10b.

(Seventh embodiment)
Next, a seventh embodiment of the present invention will be described with reference to FIG. The present embodiment is similar to the sixth embodiment, and hereinafter, differences will be mainly described.

  In the present embodiment, as shown in FIG. 26, the switching cord 30A is connected to the bottom rail 60 instead of being connected to the warp thread 10a of the ladder cord 1A at the connecting point 66. A weft thread 10e is provided between the switching cord 30A and the warp thread 10b at the same interval as the weft thread 10c of the ladder cord 1A, and the slat 40 of the lower slat group 4A is supported by the weft thread 10e.

  In the present embodiment, the upper slat group 4B can adjust the tilt angle by rotating the drum 11A, and the lower slat group 4A can adjust the tilt angle by rotating the drum 11A and operating the switching cord 30A. Can do.

  In this embodiment, the slat group 4 is supported by the ladder cord 1A and the switching cord 30A. Accordingly, these cords correspond to “slat support cords” in the claims.

  Instead of the warp yarn 10a, the warp yarn 10b may be divided and the weft yarn 10e may be provided between the warp yarn 10a and the switching cord 30A.

(Eighth embodiment)
Next, an eighth embodiment of the present invention will be described with reference to FIG. The present embodiment is similar to the seventh embodiment, and hereinafter, differences will be mainly described.

  In the present embodiment, as shown in FIG. 27, the ladder cord 1A supports only the upper slat group 4B. An intermediate rail 53 is provided at the lower end of the ladder cord 1A. The switching cord 30A is connected to the bottom rail 60. An auxiliary cord 52 having one end connected to the head box 6 and the other end connected to the bottom rail 60 is provided, and the gap between the switching cord 30A and the auxiliary cord 52 is the same as the weft 10c of the ladder cord 1A. The weft 10f is provided, and the slat 40 of the lower slat group 4A is supported by the weft 10f.

  In the present embodiment, the upper slat group 4B can adjust the tilt angle by rotating the drum 11A, and the lower slat group 4A can adjust the tilt angle by operating the switching cord 30A. The lower slat group 4A can be moved up and down by the lifting mechanism 2 as in the first embodiment. When raising the bottom rail 60, the upper slat group 4 </ b> B can be raised by pushing up the intermediate rail 53 and the upper slat group 4 </ b> B, and the upper slat group 4 </ b> B can be lowered by lowering the bottom rail 60. In this case, the intermediate rail 53 can be omitted. Further, another lifting / lowering cord may be provided on the intermediate rail 53 so that the upper slat group 4B can be lifted / lowered independently.

  In the present embodiment, the slat group 4 is supported by the ladder cord 1A, the switching cord 30A, and the auxiliary cord 52. Accordingly, these cords correspond to “slat support cords” in the claims.

  The arrangement of the auxiliary cord 52 and the switching cord 30A may be reversed, the switching cord 30A may be arranged on the warp yarn 10b side, and the auxiliary cord 52 may be arranged on the warp yarn 10a side.

(Ninth embodiment)
Next, a ninth embodiment of the present invention will be described with reference to FIGS. The present embodiment is similar to the first embodiment, and hereinafter, differences will be mainly described.

  In this embodiment, the slat group 4 includes an upper slat group 4B, a middle slat group 4C, and a lower slat group 4A, and the middle slat group 4C and the lower slat group using two angle switching mechanisms 64 and 65. It is characterized in that the angle of 4A can be changed separately. The middle slat group 4C includes a plurality of slats 40 disposed between the upper slat group 4B and the lower slat group 4A. The angle switching mechanism 64 of the first system is the same as that of the first embodiment, but the switching cord 30A is connected to the warp thread 10a at a connection point 62 near the uppermost slat of the middle slat group 4C. The angle switching mechanism 65 of the second system has the same configuration as the angle switching mechanism 64 of the first system, and the switching cord 30A is connected at the connection point 63 near the uppermost slat of the lower slat group 4A. It is connected to the warp yarn 10b.

  Here, a specific example in which the angles of the middle slat group 4C and the lower slat group 4A are separately changed using the angle switching mechanisms 64 and 65 will be described.

  In the example shown in FIG. 29 (a), only the lower slat group 4A is moved in the reverse fully closed direction by operating the angle switching mechanism 65 and pulling the connection point 63 upward while all the slats are horizontal. It is inclined to.

  In the example shown in FIG. 29 (b), in a state where all the slats are horizontal, the angle switching mechanisms 64 and 65 are operated to raise the connection points 62 and 63 upward, so that only the middle slat 4C is moved. It is tilted in the closing direction.

  In the example shown in FIG. 30, when all the slats are inclined in the fully-closed direction as shown in FIG. 30 (a), the angle switching mechanism 65 is operated to raise the connection point 63 upward. As shown in 30 (b), only the lower slat group 4A is inclined in the reverse fully closed direction.

  In the example shown in FIG. 31, when all the slats are inclined in the reverse fully closed direction as shown in FIG. 31A, the angle switching mechanism 64 is operated to raise the connection point 62 upward. As shown in FIG. 31 (b), the middle slat group 4C and the lower slat group 4A are inclined in the fully closed direction. Further, in the state of FIG. 31 (b), by operating the angle switching mechanism 65 and pulling up the connecting point 63 upward, as shown in FIG. 31 (c), only the lower slat group 4A is inclined in the reverse fully closed direction. I am letting. As a result, as shown in FIG. 31C, the upper slat group 4B and the lower slat group 4A are inclined in the reverse fully closed direction, and the middle slat group 4C is inclined in the fully closed direction. .

  In addition, the arrangement of the angle switching mechanisms 64 and 65 may be reversed, and the connection point 62 may be provided on the warp yarn 10b, and the connection point 63 may be provided on the warp yarn 10a.

  In addition, this invention is not limited to the said embodiment, A various deformation | transformation and change are possible within the range of the summary of invention. For example, in the above embodiment, the switching cords 30A and 30C are inserted through the operation rod 14 and connected to the grip equalizer 34 of the grip 33. However, the grip 33 and the grip equalizer 34 are not provided, and the switching cords 30A and 30C are provided. A horizontal blind having a structure in which the other end portion of 30C is pulled out of the head box 6 from a predetermined position unrelated to the operation rod 14 and the external switching cords 30A and 30C can be pulled or loosened. It is included in the scope of the present invention.

  Further, without using the grip 33 or the grip equalizer 34, the switching cords 30A and 30C are inserted into the operation rod 14 of the angle adjusting mechanism 1, and the switching cord 30A (30C) pulled out from the lower end of the operation rod 14 is pulled. Horizontal blinds that can be loosened are also included within the scope of the present invention. Further, a horizontal blind having a structure in which the switching cords 30A and 30C are inserted into the operation rod 14 of the angle adjusting mechanism 1 without using the grip equalizer 34 and the end thereof is directly connected to the lower end of the grip 33 is also provided in the present invention. It is included in the range.

  In the third embodiment, the hook 39 is not provided at the lower end of the switching cord 30A (30C), and the switching cord 30A (30C) may be directly connected to the lowest ring portion 38 or the warp.

  In the above-described embodiment, the hexagonal cross section is exemplified as the angular axis 12. However, the present invention is not limited to this, and can be applied as the angular axis 12 as long as the axis has a triangular section or more. . Further, in the second embodiment, the structure in which each lever 35 is urged outward by the leaf springs 36 and 37 is exemplified. However, instead of the leaf springs 36 and 37, a part of the resin grip 33 is attached to the plate. The springs 36 and 37 may be formed in substantially the same shape, and the urging force for each lever 35 may be generated using the elasticity of resin.

1: Angle adjustment mechanism, 1A-1C: Ladder cord, 2: Lifting mechanism, 3: Angle switching mechanism, 4: Slat group, 4A: Lower slat group, 4B: Upper slat group, 4C: Middle slat group, 5A-5C : Support member, 6: head box, 10a, 10b: warp, 10c, 10d: weft, 11A to 11C: drum, 12: angular shaft, 13: gear device, 14: operation rod, 14A: universal joint, 14B, 33B : Stopping member, 14a: Upper end portion, 14b, 33b: Lower end portion, 20A-20C: Lifting cord, 21A-21C, 31A, 31C: Roller, 22: Stopper for lifting cord, 23: Code equalizer, 24: Operation cord, 30A, 30C: switching cord, 32, 32 ': switching cord stopper, 33: grip, 33A: end wall, 33c: lower end opening, 33d: long Hole, 34: Grip equalizer, 35: Lever, 35a: Upper part, 35b: Lower part, 36, 37: Leaf spring, 38: Ring part, 39: Hook part, 40: Slat, 41: Notch part, 50: Bearing part 52: auxiliary cord, 53: intermediate rail, 60: bottom rail, 61: spacer, 61a, 61b, 61c: hole, 62, 63, 66: connection point, 64, 65: angle switching mechanism, S: stroke.

Claims (9)

A slat group consisting of a plurality of slats is rotatably supported by a slat support cord suspended from the head box, and a bottom rail is supported to be movable up and down by an elevation cord suspended from the head box. In horizontal blinds,
The slat group includes an upper slat group composed of a plurality of slats including the uppermost slat, and a lower slat group composed of a plurality of slats arranged below the upper slat group,
Provided with an angle switching mechanism capable of switching the angle of the lower slat group,
The angle switching mechanism is capable of supporting the lower slat group on one end and switching the cord on the other end through the head box, and pulling the switching cord into or out of the head box. Horizontal blinds with a simple switching operation section. The horizontal blind according to claim 1, wherein
The slat support cord is a ladder cord composed of a pair of warps and a plurality of wefts, one end of which is connected to the bottom rail,
By rotating the drum to which the other end of the pair of warp yarns is attached by the operation unit, one of the pair of warp yarns is moved up and down relatively with respect to the other, thereby setting the angle of the slat group to a predetermined angle. The angle adjustment mechanism that can be adjusted to the upper and lower sides of the slats can be moved up and down by pulling the lifting cord with one end connected to the bottom rail and the other end into the head box. A lifting mechanism
In the switching cord, the one end is connected to a position of one warp of the pair of warps and a vicinity of the uppermost slat in the lower slat group.
A horizontal blind characterized by that. The horizontal blind according to claim 2,
The operation portion of the angle adjustment mechanism is a cylindrical operation rod having one end attached to the outside of the head box and capable of rotating the drum.
The switching operation portion of the angle switching mechanism is the other end side of the switching cord that is drawn out of the head box through the head box and inserted into the operation rod from one end side of the operation rod.
A horizontal blind characterized by that. The horizontal blind according to claim 3,
A cylindrical grip is slidably fitted to the outside of the operating rod so that the convex portion provided on the inside of the one end engages with the convex provided on the outside of the other end of the operating rod. The other end of the switching cord pulled out from the other end of the operation rod is connected to the other end of the grip.
A horizontal blind characterized by that. The horizontal blind according to claim 4,
The cap member was fitted into the opening on the other end side of the grip so as to be freely inserted and removed, and the other end of the switching cord was connected to the cap member.
A horizontal blind characterized by that. The horizontal blind according to any one of claims 2 to 5,
A notch is provided at one end in the width direction of the slat,
The one end of the switching cord is connected to a warp yarn at a position opposite to the notch portion of the pair of warp yarns,
A horizontal blind characterized by that. The horizontal blind according to any one of claims 2 to 6,
Pass the switching cord from one direction between the upper slat and the weft, and then pass the switching cord from the other direction between the slat and the weft at the position of the slat below the slat. After weaving, we connected one end to the warp,
A horizontal blind characterized by that. The horizontal blind according to any one of claims 2 to 6,
A plurality of ring portions are arranged at predetermined intervals toward the head box side from the place where the switching cord is connected to the warp yarn to which the switching cord is connected,
The switching cord is passed through the plurality of ring portions, and the one end is connected to the warp.
A horizontal blind characterized by that. The horizontal blind according to claim 8, wherein
A hook portion is provided at one end of the switching cord, and the hook portion is detachably locked to a ring portion located at a connection portion of the switching cord.
A horizontal blind characterized by that.

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