JP6581406B2 - Horizontal blind and stop device - Google Patents

Description

  The present invention relates to a horizontal blind capable of adjusting the angle of an upper slat group (upper slat group) and a lower slat group (lower slat group) 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. .

  In order to solve the above-described problems, the present invention is configured such that a slat group including a plurality of slats is rotatably supported by a slat support cord suspended from the head box, and one end side is supported by being suspended from the head box. In the horizontal blind configured such that the bottom rail is supported so as to be movable up and down by the lifting cord, the slat group includes an upper slat group including a plurality of slats including the uppermost slat, and a lower slat group than the upper slat group. A lower slat group composed of a plurality of slats arranged on the side, and a switching cord that supports the lower slat group on one end side and is passed through the head box on the other end side is drawn into the head box or By discharging from the head box, the lower slat in the slat group The switching cord is provided with an angle switching mechanism capable of switching the angle to a predetermined angle, and the first operating member having a through hole penetrating from the front end portion to the rear end portion is led out from the head box. The second operating member is connected to the other end of the lifting / lowering cord that is led out from the head box and inserted into the through hole of the first operating member, and the rear end of the first operating member By placing it on the side and releasing it after pulling the lifting / lowering cord on the second operating member side, the lifting / lowering cord and the switching cord can be prevented from falling freely, and the lifting / lowering cord can A stop device having a release function for releasing the operation of the fall prevention function by releasing the cord after being pulled again is provided in the head box.

  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 measure a reduction in manufacturing man-hours and manufacturing costs of a horizontal blind that can adjust the angle of the upper and lower slat groups at different angles. Further, when the lifting cord is released after being pulled using the second operating member, the free fall prevention function of the stop device operates. As a result, the slat group rises sequentially from below and stops at a predetermined position. In addition, when the lifting / lowering cord is pulled again from this state and then released, the release function for the free fall prevention operation of the stop device operates, and the slat group descends sequentially from above. Further, when the switching cord of the angle switching mechanism is pulled by a predetermined distance using the first operating member with the slat group being fully opened, the lower slat group supported by the switching cord is tilted. At this time, since the second operating member arranged on the rear end side of the first operating member moves integrally with the first operating member, the lifting cord can also be released by pulling and releasing the first operating member. It will be released after being pulled. As a result, the free fall prevention function of the stop device operates, the free fall of the lifting / lowering cord and the switching cord is prevented, and the lower slat group is stopped in a state where it is inclined by a predetermined angle. As a result, the upper slat group is kept open and the lower slat group is closed. In such a state, when the second operating member or the first operating member is used to perform the releasing operation after pulling the lifting / lowering cord, the release function of the stop device is activated, the switching cord is freely dropped, and the lower slat group Will return to its original state and become fully open.

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 having one end connected to a bottom rail, supports the plurality of slat groups by the ladder cord, and one of a pair of warp yarns constituting the ladder cord. The angle adjustment mechanism capable of adjusting the angle of the slat group to a predetermined angle and the lifting / lowering cord connected to the bottom rail are drawn into the head box or moved up and down relative to the other by the operation unit. A lifting mechanism capable of moving up and down the slat group by discharging, the second operation member is engaged with a rear end portion of the first operation member, and the one end of the switching cord is It is connected to the position of one warp in a pair of warps. With this configuration, the slat 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.

  Preferably, the stop device includes a cord holding portion that holds the lifting / lowering cord with a predetermined frictional force, and a carriage portion that includes the cord holding portion and moves in the cord moving direction as the lifting / lowering cord held by the cord holding portion moves. And a receiving part fixed to the outside of the carriage part, and an elevator cord provided on the carriage part and as the carriage part approaches or separates from the receiving part side as the carriage part approaches or separates from the receiving part side. When the switching part and the carriage part are released after pulling the lifting / lowering cord on the second operating member side, the lifting / lowering code and the switching code are received by the holding part. When the lifting / lowering cord is re-pulled and released, it is moved from the free fall prevention position to the free fall prevention release position that releases the holding state of the lifting / lowering cord and the switching cord. It was constituted by a cam mechanism. With this configuration, by pulling the lifting / lowering cord connected to the second operating member and then releasing it, the carriage is positioned at the free fall prevention position by the cam mechanism. As a result, the lifting / lowering cord and the switching cord are sandwiched between the sandwiching portion and the receiving portion. Then, by pulling the lifting / lowering cord again from this state and releasing it, the carriage moves to the free fall prevention release position by the cam mechanism. As a result, the clamping state between the lifting / lowering cord and the switching cord is released.

  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, 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 lifting mechanism, the switching cord does not loosen and hang down from the horizontal blind, and the slat group is slackened. It is possible to prevent the occurrence of a situation where the switch cord is caught and cannot be lowered.

  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. Also, by removing the hook part from the ring part and locking it to the ring part at the desired position, the slat group of the desired number of stages can be operated, and the number of stages of the lower slat group operated by the angle switching mechanism can be easily changed. There is an effect that can be done.

  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. With this configuration, since the switching cord is knitted into the weft, when the slat group is raised by the lifting mechanism, the switching cord does not loosen and hang down from the horizontal blind, and the slat group becomes a loose switching cord. It is possible to prevent the occurrence of a situation where it cannot be lowered due to being caught.

  According to another aspect of the present invention, the first cord is pulled after being pulled in the operation direction and then released to prevent the first cord and the second cord from moving in the counter-operation direction. A stop device having a function and a release function for releasing the prevention function by releasing the first cord after being pulled again, the cord holding for holding the first cord with a predetermined friction force A carriage part that includes the cord holding part and moves in the cord movement direction as the first cord held by the cord holding part moves, and a receiving part fixed to the outside of the carriage part, The first cord and the second cord are provided to the receiving portion by moving toward or away from the receiving portion side as the cart portion approaches or separates from the receiving portion side. A clamping part that cooperates with and releases or releases When the carriage is released after the first cord is pulled, the first cord and the second cord are positioned at an operation preventing position where the first cord and the second cord are sandwiched between the sandwiching portion and the receiving portion. When the cord is released after being pulled again, there is provided a stop device constituted by a cam mechanism for moving from the operation preventing position to the operation preventing releasing position for releasing the clamping state of the first cord and the second cord. The

  According to this aspect, the first cord is pulled after being pulled in the operation direction and then released to prevent the first cord and the second cord from moving in the counter-operation direction. A stop device having a release function for releasing the prevention function by releasing the cord after being pulled again can be realized with a simple configuration, and it becomes possible to measure a reduction in manufacturing man-hours and manufacturing costs. . Here, the stop device has a lifting / lowering cord that supports the bottom rail so that it can be raised / lowered and a switching cord that supports the lower slat group, and the horizontal blind that can adjust the angle between the upper slat group and the lower slat group at different angles. It can be suitably applied to. In this case, the lifting / lowering code corresponds to the “first code”, and the switching code corresponds to the “second code”. However, the stop device according to this aspect can be applied to other than the horizontal blind.

  As described above in detail, according to the horizontal blind of the present invention, the angle switching mechanism in which the switching cord is coupled to the warp, the lifting mechanism in which the lifting cord is connected to the bottom rail, the switching cord and the lifting cord of these mechanisms It is possible to adjust the angle of the upper slat group and the lower slat group at different angles with a simple structure of a stop device that can prevent or release the free fall. 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.

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 explanatory drawing which shows the connection state of the switching cord and the warp yarn of a ladder cord. 7A and 7B are schematic cross-sectional views for explaining the structure and function of the code equalizer and the grip. FIG. 7A shows an initial state, FIG. 7B shows a state where only the code equalizer is pulled, and FIG. (C) shows a state where the grip is pulled. It is a perspective view of the stop device with which each cord was inserted. It is a top view of a stop device. It is a disassembled perspective view of a stop apparatus. It is a top view which shows the shape of a guide groove, and the stop position of a cam shaft. It is sectional drawing which shows the inside of a stop apparatus at the time of raising a slat group and a bottom rail, FIG. 12 (a) shows the arrow CC cross section of FIG. 9, FIG.12 (b) is FIG. The arrow DD DD cross section of is shown. It is sectional drawing which shows a free fall prevention state, FIG. 13 (a) shows the state which clamped the raising / lowering cord, FIG.13 (b) shows the state which clamped the switching cord. 14A and 14B are cross-sectional views showing a state in which the free fall prevention operation is released. FIG. 14A shows a state in which the lifting / lowering cord is released, and FIG. 14B shows a state in which the switching cord is released. . It is the schematic which shows the full open state of a horizontal blind. It is the schematic which shows the usage example which makes a horizontal blind fully closed. It is the schematic which shows the usage example which raises / lowers a horizontal blind. It is the schematic which shows the usage example which makes a horizontal blind a top open and closed state. It is the schematic which shows the usage example which returns a horizontal blind to an initial state. It is a perspective view which shows the principal part of the horizontal blind which concerns on 2nd Embodiment of this invention. It is a perspective view which shows the principal part of the horizontal blind which concerns on 3rd Embodiment of this invention. It is the schematic which shows the structure of the horizontal blind which concerns on 4th Embodiment of this invention. It is the schematic which shows the structure of the horizontal blind which concerns on 5th Embodiment of this invention. It is the schematic which shows the structure of the horizontal blind which concerns on 6th 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, an angle switching mechanism 3, and a stop device 7.

  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. 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 operation rod 14 is disposed outside the head box 6, and an upper end portion 14 a thereof is connected to the gear device 13 via a universal joint 14 </ b> A. 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, the slat group 4 rotates counterclockwise, and the horizontal blind is fully closed. In this state, the drum 11A (11B, 11C) rotates clockwise by rotating the operating rod 14 in the reverse direction. Thereby, the warp yarn 10a of each ladder cord 1A (1B, 1C) is lowered and the warp yarn 10b is raised, the slat group 4 is rotated clockwise, and the horizontal blind is returned to the fully opened state shown in FIG.

  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. It comprises rollers 21 </ b> A to 21 </ b> C provided therein, a code equalizer 8 as a second operation member, and an operation code 80.

  As shown in FIG. 2, each lifting cord 20 </ b> A (20 </ b> B, 20 </ b> C) is a cord that sequentially lifts and lowers the slat group 4 by moving the bottom rail 60 up and down, and the lower end as one end is connected to the bottom rail 60. The upper end side is drawn into the head box 6. Specifically, as shown in FIG. 5, a roller 21A (21B, 21C) is rotatably disposed on the lower left side of a drum 11A (11B, 11C) in a support member 5A (5B, 5C), and an elevator cord The upper end side of 20A (20B, 20C) is hung on this roller 21A (21B, 21C). Then, as shown in FIG. 4, the lifting / lowering cord 20 </ b> A (20 </ b> B, 20 </ b> C) is guided through the head box 6 to a stop device 7 described later, and is inserted into the stop device 7.

  As shown in FIG. 1, the three lifting / lowering cords 20 </ b> A to 20 </ b> C are inserted into the stop device 7, pulled out of the head box 6, and connected to the cord equalizer 8. The upper end of the operation cord 80 is connected to the code equalizer 8, and the lower end is connected to the bottom rail 60. Thereby, the raising / lowering of the slat group 4 can be controlled by operating the operation cord 80 and lowering the code equalizer 8 or releasing the pulling force on the operation cord 80.

  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 FIGS. 3 and 4, the two switching cords 30A are also provided. , 30C, rollers 31A, 31C provided in the support members 5A, 5C, and a grip 9 as a first operation 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. 6 is an explanatory view 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. 6 (a), the switching cord 30A (30C) allows the uppermost slat 40 of the lower slat group 4A to sew the weft 10d that supports each slat 40 of the upper slat group 4B. The lower end is connected to the warp yarn 10a at the vicinity. Specifically, as shown in FIG. 6 (b), in the upper slat group 4B, the switching cord 30A (30C) dives 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 in this manner, 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 yarn 10a of the ladder cord 1A (1C), but the upper end side is inside the head box 6 as shown in FIGS. Has been introduced. Specifically, as shown in FIG. 5, the roller 31A (31C) is rotatably disposed at the lower right of the drum 11A (11C) in the support member 5A (5C), and the upper end of the switching cord 30A (30C). The part side is hung on this roller 31A (31C). Then, as shown in FIG. 4, the switching cord 30 </ b> A (30 </ b> C) is guided to the stop device 7 described later in the head box 6 and inserted into the stop device 7. As shown in FIG. 1, these two switching cords 30 </ b> A and 30 </ b> C are inserted into the stop device 7, pulled out to the outside of the head box 6, and then connected to the grip 9. Accordingly, when the grip 9 is pulled down by the stroke S, the switching cord 30A (30C) connected to the warp thread 10a of the ladder cord 1A (1C) is drawn into the head box 6 by the stroke S, and the switching cord 30A ( Among the warp yarns 10a of the ladder cord 1A (1C) to which 30C) is connected, the warp yarn portion after the connection portion is pulled up by the stroke S. As a result, the lower slat group 4A is greatly inclined. That is, the lower slat group 4A can be closed by pulling down the grip 9 by the stroke S.

  Here, the grip 9 as the first operation member and the code equalizer 8 as the second operation member will be described. 7 is a schematic cross-sectional view for explaining the structure and function of the code equalizer 8 and the grip 9. FIG. 7 (a) shows an initial state, and FIG. 7 (b) shows only the code equalizer 8. FIG. 7C shows a state where the grip 9 is pulled.

  As shown in FIG. 7A, the grip 9 is a cylindrical body having a through hole 90 penetrating from the front end portion 91 to the rear end portion 92. Then, the distal ends 30 a and 30 b as the other ends of the switching cords 30 A and 30 C led out of the head box 6 (see FIG. 1) are connected to the distal end portion 91 of the grip 9. On the other hand, the code equalizer 8 is a column disposed on the rear end 92 side of the grip 9 and is connected to the lifting / lowering cords 20A to 20C. Specifically, after the lifting / lowering cords 20A to 20C are pulled out of the head box 6 (see FIGS. 1 and 2), they are inserted into the through holes 90 of the grip 9 as shown in FIG. Has been. Terminals 20 a to 20 c as the other ends of the lifting cords 20 </ b> A to 20 </ b> C are connected to the cord equalizer 8. The outer diameter of the cord equalizer 8 to which the lifting / lowering cords 20 </ b> A to 20 </ b> C are connected is set larger than the outer diameter of the grip 9, and the cord equalizer 8 is engaged with the rear end portion 92 of the grip 9. The code equalizer 8 may be brought into contact with the rear end side of the grip 9 without being engaged with the rear end portion 92 of the grip 9.

  Since the code equalizer 8 and the grip 9 have such a structure, as shown in FIG. 7B, when the code equalizer 8 is pulled, only the lift cords 20A to 20C can be pulled down. Further, as shown in FIG. 7C, when the grip 9 is pulled by the stroke S, the cord equalizer 8 engaged with the grip 9 is also pulled together with the grip 9, and the lifting / lowering cords 20A to 20C and the switching cord 30A are pulled. , 30C is pulled down by the stroke S at the same time.

  As described above, the slat group 4 and the bottom rail 60 are moved up and down by the operation of the code equalizer 8, and the angle adjustment of the lower slat group 4A is performed by the operation of the grip 9, but these functions are enabled. This is the stop device 7.

  8 is a perspective view of the stop device 7 through which each cord is inserted, FIG. 9 is a plan view of the stop device 7, and FIG. 10 is an exploded perspective view of the stop device 7. In addition, in order to understand easily, in FIG. 10, the perspective view turned upside down is written together with the normal perspective view of a trolley | bogie part. As shown in FIG. 8, the stop device 7 includes a case 70 fixed in the head box 6 (see FIG. 1), a carriage portion 71 assembled in the case 70, a cord holding portion 72, and a receiving portion. 73, a sandwiching portion 74, and a cam mechanism 75.

  The carriage unit 71 is fitted in the case 70 and can move in the front-rear direction (the left-right direction in FIG. 9) of the head box 6 in the case 70. As shown in FIG. 10, the carriage 71 has a structure in which vertical side walls 71A and 71A are integrally formed on both ends of the horizontal wall 71B, and a cord holding part 72 is arranged above the horizontal wall 71B. It is installed.

  The cord holding portion 72 is a portion for holding the lifting cords 20A to 20C with frictional force, and is formed by three shafts 72A to 72C. Specifically, the three shafts 72A to 72C are horizontally arranged in the length direction of the side wall portions 71A and 71A, and both end portions of each shaft 72A (72B and 72C) are located behind the both side wall portions 71A and 71A. It is being fixed to the side part (right side part of FIG. 9). As shown in FIGS. 8 and 9, the lifting / lowering cords 20 </ b> A to 20 </ b> C pass through the receiving portion 73 and the shaft 72 </ b> A, pass over the shaft 72 </ b> B, and again pass under the shaft 72 </ b> C. It is inserted into the device 7. By passing the elevating cords 20A to 20C so as to be knitted into the shafts 72A to 72C in this way, a predetermined frictional force is generated between the shafts 72A to 72C and the elevating cords 20A to 20C, and the elevating cords 20A to 20C are The cord is held by the cord holding unit 72. As a result, when the lifting / lowering cords 20 </ b> A to 20 </ b> C move, the carriage unit 71 moves in the moving direction of the lifting / lowering cords 20 </ b> A to 20 </ b> C together with the cord holding unit 72. Further, after the movement of the carriage unit 71 is prevented in the case 70, only the lifting / lowering cords 20A to 20C can be moved by pulling the lifting / lowering cords 20A to 20C so as to overcome the frictional force by the cord holding unit 72. it can. On the other hand, the switching cords 30A and 30C are inserted into the stop device 7 so as to pass under the receiving portion 73 and the shafts 72A to 72C. Accordingly, no frictional force is generated between the switching cords 30A and 30C and the cord holding portion 72, and therefore, the carriage unit 71 does not move due to the frictional force even if the switching cords 30A and 30C are moved.

  The receiving portion 73 is a portion that holds the elevating cords 20 </ b> A to 20 </ b> C in cooperation with a holding portion 74 described later, and is fixed to the outside of the carriage portion 71. Specifically, as shown in FIG. 9, the receiving portion 73 is a horizontal ceiling wall, and is formed integrally with the case 70 on the front side portion (left side portion in FIG. 9) of the case 70.

  The sandwiching portion 74 is a portion that can be sandwiched or released in cooperation with the receiving portion 73 and the lifting / lowering cords 20A to 20C and the switching cords 30A and 30C, and is a gear-like rotating body. Specifically, as shown in FIG. 10, the tooth portion 74A is formed on the curved surface of the sandwiching portion 74, and the shafts 74B and 74B project from the upper portions of both side surfaces of the tooth portion 74A. Long shafts 74 </ b> D and 74 </ b> D protrude from both sides of the base portion 74 </ b> C of the sandwiching portion 74. Further, holes for fitting these shafts 74B and 74D are formed in the side wall portions 71A and 71A of the carriage portion 71. That is, the vertically long slots 74E and 74E are formed in the upper part of the front side part (left side part in FIG. 9) of the side wall parts 71A and 71A, and the horizontally long slots 74F and 74F are formed in the lower part thereof. The shafts 74B and 74B of the sandwiching portion 74 are fitted in the vertically long slots 74E and 74E so as to be movable up and down, and the axes 74D and 74D are fitted in the horizontally long slots 74F and 74F so as to be movable back and forth. Yes. Further, the distal end of the base portion 74 </ b> C of the sandwiching portion 74 slightly enters the rectangular hole 70 </ b> A formed in the bottom portion of the case 70. Accordingly, in FIG. 9, when the lifting / lowering cords 20 </ b> A to 20 </ b> C are pulled forward and the carriage portion 71 is moved forward of the case 70 by the frictional force with the cord holding portion 72, The shafts 74D and 74D of the portion 74 slide backward in the long holes 74F and 74F, the shafts 74B and 74B slide upward in the long holes 74E and 74E, and the base 74C enters the rectangular hole 70A. As a result, as shown in FIG. 13 to be described later, the entire sandwiching portion 74 rotates and approaches the receiving portion 73 side, and the tooth portions 74A of the sandwiching portion 74 cooperate with the receiving portion 73 to raise and lower the cords 20A to 20C. And the switching cords 30A and 30C. Therefore, when the lifting / lowering cords 20A to 20C or the switching cords 30A and 30C are pulled back from this state, the carriage unit 71 moves to the rear side of the case 70 by the clamping force by the clamping unit 74, and is separated from the receiving unit 73 side. To do. Then, the shafts 74D and 74D of the clamping portion 74 slide forward in the long holes 74E and 74E, the shafts 74B and 74B slide downward in the long holes 74F and 74F, and the base portion 74C moves upward from the rectangular hole 70A. Go out to. As a result, as shown in FIG. 14, which will be described later, the entire holding portion 74 is reversely rotated and separated from the receiving portion 73 side, and released from the state where the lifting / lowering cords 20A to 20C and the switching cords 30A and 30C are held. It will be in the state.

  The cam mechanism 75 is a mechanism for imparting a free fall prevention function and its release function to the stop device 7, and as shown in FIG. 10, a cam shaft 76 provided on the case 70 side and a cam shaft 76 are connected. In order to guide, it is comprised with the guide groove 77 provided in the trolley | bogie part 71 side.

  The cam shaft 76 is a protruding shaft body integrally formed on the disc body 76 </ b> A, and is supported by the base portion 70 </ b> B of the case 70 so that it can slide in the width direction of the case 70. Specifically, a horizontal lateral groove 70C facing the width direction of the case 70 is formed on the pedestal portion 70B, and a disc body 76A having a cam shaft 76 is slidably fitted into the 70C.

  The guide groove 77 is formed on the back surface 71 b of the horizontal wall 71 </ b> B of the carriage unit 71. FIG. 11 is a plan view showing the shape of the guide groove 77 and the stop position of the cam shaft 76. As shown in FIG. 11, the guide groove 77 is formed by a heart-shaped path 77A and a linear path 77B communicating with the heart-shaped path 77A. The carriage unit 71 is assembled to the case 70 so that the cam shaft 76 is accommodated in the guide groove 77. As a result, as the carriage unit 71 moves, the cam shaft 76 moves around the heart-shaped path 77A and the linear path 77B of the guide groove 77 sequentially, and stops at each position P1 to P4. The free fall prevention function and the release function of the stop device 7 are executed.

  Here, the free fall prevention function and its release function of the stop device 7 will be described. FIG. 12 is a cross-sectional view showing the inside of the stop device 7 when the slat group 4 and the bottom rail 60 are raised, and FIG. 12 (a) shows a cross section taken along the line CC in FIG. (B) shows the DD DD cross section of FIG. When the lifting / lowering cords 20A to 20C on the side of the code equalizer 8 are pulled down from the fully opened state of the slat group 4 as shown in FIG. 2 using the cord equalizer 8, as shown in FIG. 20C moves rearward (to the right in FIG. 12), and the slat group 4 and the bottom rail 60 rise. At this time, due to the frictional force of the cord holding portion 72 with respect to the lifting / lowering cords 20 </ b> A to 20 </ b> C, the carriage portion 71 also moves backward in the case 70, and the cam shaft 76 of the cam mechanism 75 reaches the position P <b> 4 in the guide groove 77. Stop at the moment. At this time, the holding part 74 is far away from the receiving part 73 due to the rearward movement of the carriage part 71. Further, since the frictional force does not act between the switching cords 30A, 30C and the cord holding portion 72, the switching cords 30A, 30C shown in FIG.

  13 is a cross-sectional view showing a free fall prevention state, FIG. 13 (a) shows a state in which the lifting / lowering cords 20A to 20C are sandwiched, and FIG. 13 (b) shows a state in which the switching cords 30A and 30C are sandwiched. Indicates. When the cord equalizer 8 is released from the tension state of the cord equalizer 8 shown in FIG. 12 and the pulling force to the lifting cords 20A to 20C is released, the lifting cords 20A to 20C are moved by the weight of the slat group 4 and the bottom rail 60. Move forward (left side in FIG. 13). Then, due to the frictional force between the lifting / lowering cords 20A to 20C and the cord holding portion 72, the carriage portion 71 is pulled forward and moved, and the cam shaft 76 moves from the position P4 to the position P1 as the free fall prevention position. Stop. At this time, the holding part 74 rotates to the receiving part 73 side by the forward movement of the carriage part 71, and as shown in FIG. 13A, the lifting / lowering cords 20 </ b> A to 20 </ b> C are connected to the receiving part 73 and the holding part 74. It is pinched by. As a result, the forward movement of the lifting / lowering cords 20A to 20C is prevented, and free fall of the slat group 4 and the bottom rail 60 is prevented (free fall prevention function). At this time, as shown in FIG. 13B, the switching cords 30 </ b> A and 30 </ b> C are also held between the receiving portion 73 and the holding portion 74.

  FIG. 14 is a cross-sectional view showing a state in which the free fall prevention operation is released. FIG. 14 (a) shows a state in which the holding of the lifting / lowering cords 20A to 20C is released, and FIG. 14 (b) shows a switching cord 30A. , 30C is released. In the free fall prevention state shown in FIG. 13, when the cord equalizer 8 is pulled again to move the lifting / lowering cords 20 </ b> A to 20 </ b> C backward, the carriage unit 71 moves backward due to the frictional force of the cord holding unit 72. Accordingly, the cam shaft 76 moves from the position P1 to the position P2, and prevents further movement of the carriage unit 71 to the rear. With this operation, the clamping unit 74 rotates away from the receiving unit 73, and the clamping state with respect to the lifting / lowering cords 20A to 20C and the switching cords 30A and 30C is released. In this state, when the cord equalizer 8 is released and the pulling force to the lifting cords 20A to 20C is released, the lifting cords 20A to 20C are moved forward by the weight of the slat group 4 and the bottom rail 60, and the carriage unit 71 also moves forward. With this operation, the cam shaft 76 moves from the position P2 to the position P3 as the free fall prevention release position, thereby preventing further movement of the carriage unit 71. Therefore, at this time, the clamping portion 74 slightly returns to the receiving portion 73 side, but does not return to the position where the lifting / lowering cords 20A to 20C are sandwiched as shown in FIGS. 14A and 14B (free fall) Release function of prevention operation). As a result, the lifting / lowering cords 20 </ b> A to 20 </ b> C overcome the frictional force of the cord holding portion 72 by the weight of the slat group 4 and the bottom rail 60 and move forward, and the slat group 4 and the bottom rail 60 are lowered.

  In the state shown in FIG. 14, when the slat group 4 and the bottom rail 60 are lowered to a desired position and then the lifting / lowering cords 20 </ b> A to 20 </ b> C are pulled rearward using the cord equalizer 8, the carriage unit 71 also moves rearward. The cam shaft 76 moves from the position P3 to the position P4. Thereby, since the trolley | bogie part 71 and the clamping part 74 return to the state shown in FIG. 12, by pulling the raising / lowering cord 20A-20C back using the code | cord | equalizer 8 in this state, the slat group 4 and bottom The rail 60 can be pulled up to a desired position.

  Next, based on FIGS. 15-19, the usage example of the horizontal blind of this embodiment is demonstrated. 15 to 19, the operation rod 14 of the angle adjustment mechanism 1 is shown separated from the cord equalizer 8 of the elevating mechanism 2 and the grip 9 of the angle switching mechanism 3 for easy viewing. FIG. 15 is a schematic diagram showing a fully open state of the horizontal blind, and FIG. 16 is a schematic diagram showing an example of use in which the horizontal blind is fully closed.

  First, in the horizontal blind of this embodiment, as shown in FIG. 15, the lifting / lowering cord 20 </ b> A (20 </ b> B, 20 </ b> C) of the lifting / lowering mechanism 2, the switching cord 30 </ b> A (30 </ b> C) of the angle switching mechanism 3, and the bottom rail 60. The state in which the slat group 4 is fully opened in a state where the slat group 4 is fully suspended from the initial state is defined as an initial state. In this state, the code equalizer 8 and the grip 9 are at the uppermost position, and the code equalizer 8 is engaged with the grip 9 from below. Further, as shown in FIG. 14, the stop device 7 is in a state in which the free fall prevention operation is released, and the cam shaft 76 of the cam mechanism 75 is located at a position P 3 in the guide groove 77.

  When adjusting the inclination angle of the slat group 4, as shown in FIG. 16, the operation rod 14 of the angle adjustment mechanism 1 is rotated forward in the initial state shown in FIG. Accordingly, the drum 11A (11B, 11C) rotates counterclockwise, the warp yarn 10a of the ladder cord 1A (1B, 1C) is pulled up, and the warp yarn 10b is pulled down. As a result, the slat group 4 is inclined upward to the left. And the slat group 4 can be made into a fully-closed state by rotating the operating rod 14 further. Further, when the operating rod 14 is reversely rotated from this state, the drum 11A (11B, 11C) rotates in the clockwise direction, and the warp thread 10b of the ladder cord 1A (1B, 1C) is pulled up and the warp thread 10a is pulled down. Therefore, the slat group 4 is fully opened and can be returned to the initial state of FIG.

  FIG. 17 is a schematic view showing a usage example in which the horizontal blind is raised and lowered. When raising the slat group 4 and the bottom rail 60, the code equalizer 8 is pulled down from the initial state shown in FIG. Then, the lifting / lowering cords 20A to 20C are pulled back into the head box 6, and the slat group 4 and the bottom rail 60 are raised. At this time, the stop device 7 does not sandwich the lifting / lowering cords 20A to 20C and the switching cords 30A and 30C as shown in FIG. Therefore, when the cord equalizer 8 is released, the lifting cords 20 </ b> A to 20 </ b> C are pulled out from the head box 6 due to the weight of the slat group 4 and the bottom rail 60. Then, as shown in FIG. 13, the cam shaft 76 of the stop device 7 moves from the position P4 to the position P1 and stops, and the lifting / lowering cords 20A to 20C and the switching cords 30A and 30C are clamped by the stop device 7. Is done. That is, after the cord equalizer 8 is pulled down and released, the free fall prevention function of the stop device 7 is operated, and the slat group 4 and the bottom rail 60 are raised to a desired position and stopped as shown in FIG. Can be made.

  When the slat group 4 and the bottom rail 60 are lowered from the state shown in FIG. 17, the cord equalizer 8 is pulled once and released. Then, the cam shaft 76 of the stop device 7 moves from the position P1 shown in FIG. 13 to the position P2, and the holding state with respect to the lifting / lowering cords 20A to 20C and the switching cords 30A and 30C is released, and then shown in FIG. As described above, the cam shaft 76 moves from the position P2 to the position P3, and the nipping release state is maintained. That is, the slat group 4 and the bottom rail 60 can be lowered to the lowest position shown in FIG. 15 by pulling the cord equalizer 8 again from the free fall prevention state and releasing it.

  By the way, when the slat group 4 is raised by the elevating mechanism 2, the switching cord 30A (30C) of the angle switching mechanism 3 may be slack and hang down for a long time. 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. 6, 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 that it sags and hangs down. 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 operating rod 14 of the angle adjusting mechanism 1 and the code equalizer 8 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. 18 is a schematic diagram illustrating an example of use in which the horizontal blind is in an open / closed state. When the upper slat group 4B of the slat group 4 is opened and the lower slat group 4A is closed, the grip 9 of the angle switching mechanism 3 is pulled down by the stroke S in the initial state shown in FIG. Then, the switching cords 30A and 30C are pulled back by the stroke S into the head box 6 without receiving the frictional force or the clamping force by the stop device 7, so that the lower slat group 4A is inclined as shown in FIG. The closed state. At this time, since the code equalizer 8 is engaged with the grip 9, the code equalizer 8 is pulled down integrally with the grip 9, and the elevating cords 20 </ b> A to 20 </ b> C are also pulled back into the head box 6. For this reason, when the grip 9 is pulled down, the slat group 4 and the bottom rail 60 slightly rise while the lower slat group 4A is closed. In this state, when the grip 9 is released, the grip 9 and the cord equalizer 8 are pulled back together, and the slat group 4 and the bottom rail 60 are slightly lowered, but the free fall prevention function of the stop device 7 shown in FIG. When the stop device 7 holds the lifting / lowering cords 20A to 20C and the switching cords 30A and 30C and the lower slat group 4A is closed, the slat group 4 and the bottom rail 60 are stopped at the lowest position. It will be in the state. As a result, the upper slat group 4B is opened, the lower slat group 4A is closed, and the slat group 4 is in the upper and lower closed state. That is, by pulling down the grip 9 and then releasing it, the free fall prevention function of the stop device 7 is operated, and the slat group 4 and the bottom rail 60 in the up / down / closed state can be stopped at substantially the lowest position. it can.

  As described above, according to the horizontal blind of this embodiment, the horizontal blind can be easily opened and closed by operating the grip 9 of the angle switching mechanism 3.

  FIG. 19 is a schematic view showing a usage example in which the horizontal blind is returned to the initial state. When returning from the upper open / closed state shown in FIG. 18 to the initial state shown in FIG. 15, the cord equalizer 8 is pulled down and then released. That is, in the state shown in FIG. 18, the stop device 7 is in a state in which the free fall prevention function is operated, and the cam shaft 76 of the cam mechanism 75 is positioned in the guide groove 77 as shown in FIGS. 11 and 13. P1. Therefore, as described above, after the cord equalizer 8 is pulled down and released, the cam shaft 76 moves to the position P3 shown in FIG. 14, and the stop device 7 is released from the free fall prevention operation. That is, after the code equalizer 8 is pulled down from the state shown in FIG. 18, the free fall prevention operation of the stop device 7 is released by releasing the cord equalizer 8, and as shown in FIG. 19, the slat group 4 and the bottom rail 60 as a whole are released. 15 can be lowered to the initial state of FIG. When the cord equalizer 8 is lowered, the holding function of the stop device 7 with respect to the switching cords 30A and 30C is also released, so that the lower slat group 4A returns to the open state by its own weight almost simultaneously with the lowering of the code equalizer 8. . After the code equalizer 8 is released, the fully open slat group and the bottom rail 60 are lowered to the lowest position and stopped.

  As another method for returning to the initial state, there is a method in which the grip 9 is pulled down and released in the state shown in FIG. That is, after the grip 9 is pulled down and released, the cord equalizer 8 engaged with the grip 9 is also pulled down and released, so that the stop device is the same as when the cord equalizer 8 is pulled down alone. 7 is in a state where the free fall prevention operation is released. As a result, the slat group 4 and the entire bottom rail 60 are lowered to the initial state of FIG. In this method, since the grip 9 is pulled down once, the lower slat group 4A is raised once in a closed state. Then, after releasing the grip 9, the lower slat group 4A returns to the open state by its own weight, and the fully open slat group and the bottom rail 60 descend to the lowest position and stop.

  As described above, the stop device 7 also functions as an angle switching state holding mechanism that can hold the switching cords 30A and 30C at a desired raised position. The stop device 7 is configured to release the holding of the switching cords 30 </ b> A and 30 </ b> C as the bottom rail 60 is raised.

  In the present embodiment, the slat group 4 is supported by the ladder cords 1A to 1C and the switching cords 30A and 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 perspective view showing a main part of a horizontal blind according to the second embodiment of the present invention. As shown in FIG. 20, in the horizontal blind of 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 of the first embodiment, description thereof is omitted.

(Third embodiment)
Next explained is the third embodiment of the invention. FIG. 21 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. 21, in the horizontal blind of 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 and second embodiments, description thereof is omitted.

(Fourth embodiment)
Next, a fourth 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 this embodiment, as shown in FIG. 22, 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 supporting 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 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.

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

  In the present embodiment, as shown in FIG. 23, the switching cord 30 </ b> A is connected to the bottom rail 60 instead of being connected to the warp thread 10 a of the ladder cord 1 </ b> A 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.

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

  In the present embodiment, as shown in FIG. 24, 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.

  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 second embodiment, the hook 39 may not be 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 warp.

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, 5A to 5C ... support member, 6 ... head box, 7 ... stop device, 8 ... cord equalizer, 9 ... grip, 10a, 10b ... warp, 10c , 10d, 10e, 10f ... weft, 11A to 11C ... drum, 12 ... square shaft, 13 ... gear device, 14 ... operation rod, 14A ... universal joint, 14a ... Upper end, 20A-20C ... Lifting code, 20a-20c, 30a, 30b ... End, 30A, 30C ... Switching code, 21A-21C, 31A, 31C ... Roller, 38 ... Ring part, 39 ... Hook part, 40 ... Slat, 41 ... Notch part, 50 ... Bearing part, 52 ... Auxiliary cord, 53 ... Intermediate rail 60 ... Bottom race , 66 ... Connection point, 70 ... Case, 70A ... Rectangular hole, 70B ... Base part, 70C ... Horizontal groove, 71 ... Cart part, 71A ... Side wall part, 71B. ..Horizontal wall, 71b ... back surface, 72 ... cord holding part, 72A to 72C ... shaft, 73 ... receiving part, 74 ... clamping part, 74A ... tooth part, 74B, 74D ... shaft, 74C ... base, 74E, 74F, ... long hole, 75 ... cam mechanism, 76 ... cam shaft, 76A ... disc body, 77 ... guide groove, 77A ... Heart-shaped path, 77B ... Linear path, 80 ... Operation code, 90 ... Through hole, 91 ... Front end, 92 ... Rear end, P1-P4 ... .position.

Claims (7)

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 a lift cord supported at one end by being suspended from the head box. In a horizontal blind configured to be
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,
The lower slat group of the slat group is supported by drawing the switching cord supporting the lower slat group on one end side and passing the other end side into the head box into the head box or discharging it from the head box. It is equipped with an angle switching mechanism that can switch the angle of the slat group to a predetermined angle.
Connecting the first operating member having a through hole penetrating from the front end portion to the rear end portion to the other end of the switching cord led out from the head box;
The second operating member is connected to the other end of the lifting / lowering cord that is led out from the head box and inserted through the through hole of the first operating member, and is arranged on the rear end side of the first operating member. ,
By pulling the lifting cord on the second operating member side and then releasing it, the lifting cord and the switching cord can be prevented from free fall. A stop device having a release function for releasing the operation of the fall prevention function by releasing it after being pulled is provided in the head box.
A horizontal blind characterized by that. The horizontal blind according to claim 1, wherein
The slat supporting cord includes a said switching code, whereas the ladder cord end is connected to the bottom rail,
The plurality of slat groups are supported by the ladder cords, and one of a pair of warp yarns constituting the ladder cords is moved up and down relatively with respect to the other by the operation unit, thereby adjusting the angle of the slat groups. An angle adjustment mechanism that can be adjusted to a predetermined angle, and an elevating mechanism that can elevate and lower the slat group by drawing or discharging the elevating cord connected to the bottom rail into the head box,
The second operating member is engaged with a rear end portion of the first operating member,
The one end of the switching cord is connected to one warp of the pair of warps,
A horizontal blind characterized by that. The horizontal blind according to claim 1 or 2,
A cord holding unit that holds the lifting / lowering cord with a predetermined friction force, and a carriage unit that includes the cord holding unit and moves in the code moving direction along with the movement of the lifting / lowering cord held by the cord holding unit. When,
A receiving part fixed outside the carriage part;
The lifting / lowering cord and the switching cord are clamped in cooperation with the receiving portion by being moved toward or away from the receiving portion side as the carriage portion is provided to the receiving portion side and approaches or separates from the receiving portion side. Or a clamping part to be released,
When the carriage unit is released after pulling the lifting / lowering cord on the second operating member side, the lifting / lowering cord and the switching cord are positioned at a free fall prevention position that is sandwiched between the clamping unit and the receiving unit, When it is released after pulling again, it is composed of a cam mechanism that moves from the free fall prevention position to the free fall prevention release position that releases the clamped state of the lifting cord and the switching cord.
A horizontal blind characterized by that. In the horizontal blind according to claim 2 or claim 3 that cites the claim,
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. In the horizontal blind according to any one of claims 2, 3 and 4 which cites this ,
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 5,
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. In the horizontal blind according to any one of claims 2, 3 and 4 which cites this ,
The switching code, after passing from one direction between the upper slats and weft, at the position of the lower slat from the slats, so as to pass from the other direction between the slats and weft, said switching code After weaving into the weft constituting the ladder cord, one end of the weft was connected to the warp.
A horizontal blind characterized by that.