WO2014104081A1

WO2014104081A1 - Pleated screen

Info

Publication number: WO2014104081A1
Application number: PCT/JP2013/084636
Authority: WO
Inventors: 立川　光威
Original assignee: 立川ブラインド工業株式会社
Priority date: 2012-12-27
Filing date: 2013-12-25
Publication date: 2014-07-03
Also published as: TW201439425A; JP6429629B2; JPWO2014104081A1

Abstract

Provided is a pleated screen configured from two screen units comprising: a first screen and a second screen that are hung from a head box and can be folded in a zigzag manner in the vertical direction; a first bottom rail and a second bottom rail disposed on the bottom of each screen; and a first lift cord and a second lift cord that hang from the head box, support each bottom rail, and are operated from the head box to raise and lower each screen mutually independent of each other. At least one of the first lift cord and second lift cord is placed between the overlap of the first screen and second screen, thereby suppressing interference between the two screens disposed to the front and back.

Description

Pleated screen

The present invention relates to a pleated screen in which a screen that can be folded in a zigzag manner is suspended and supported so as to be lifted and lowered from a head box.

The pleated screen suspends and supports a screen that can be folded in a zigzag shape in the vertical direction from the head box, and moves the screen up and down with an operating device to adjust the amount of light appropriately.

In such a pleated screen, a lifting / lowering cord suspended from a head box is inserted into the screen, and a bottom rail is attached to the lower end of the lifting / lowering cord. When the lifting / lowering cord is wound up by the lifting / lowering cord winding device in the head box by operating the operation device, the bottom rail is pulled up, the screen is folded upward, and the lifting / lowering cord is rewound from the lifting / lowering cord winding device. Then, the bottom rail is lowered and the screen is extended downward.

Japanese Patent Laid-Open No. 2000-220367

In Patent Document 1, a single screen is suspended from a head box and supported. For example, a lace screen is arranged outside the room, and a thick fabric screen is arranged inside the room. There is a desire to move up and down.

The present inventors actually made a double pleated screen in which such two screens were supported suspended from the head box, and raised and lowered the two screens independently. As a result, the two screens can usually be raised and lowered independently without any problem, but there may be a phenomenon in which the two screens cannot interfere with each other due to interference.

The present invention has been made in view of such circumstances, and provides a pleated screen capable of suppressing interference between a plurality of screens arranged in the front-rear direction.

According to the present invention, the first screen suspended from the head box and foldable in a zigzag shape in the vertical direction, the first bottom rail disposed at the lower end of the first screen, and suspended from the head box. A first screen unit including a first lifting / lowering cord that supports the first bottom rail and is operated from the head box side to lift and lower the first screen;
A second screen suspended from the head box and foldable in a zigzag shape in the vertical direction, a second bottom rail disposed at the lower end of the second screen, and a second bottom rail suspended from the head box. A second screen unit that includes a second lifting / lowering cord that supports and operates the head box to raise and lower the second screen;
The first screen and the second screen can be moved up and down independently of each other, and are arranged side by side in the front-rear direction,
A pleated screen is provided in which at least one of the first lifting cord and the second lifting cord is disposed between the first screen and the second screen.

The present inventors have investigated the cause of interference between the two screens arranged in the front-rear direction. When a force in the front-rear direction is applied to the screen when the screen is moved up and down, the peak portion of one screen becomes the other It was found that this was caused by the fact that it could get into the valley of the screen. And when the means for suppressing this interference was examined, when the lifting / lowering cord, which has been arranged so as to penetrate the screen in the past, is arranged between the first screen and the second screen, the peak portion of one screen is It has been found that the valley of the other screen does not enter and the first screen and the second screen can be raised and lowered independently and smoothly, and the present invention has been completed.

The point of the present invention is that the lifting / lowering code, not the pitch holding code, is arranged between the first screen and the second screen. The pitch holding cord was tested between the first screen and the second screen to prevent interference, but the pitch holding cord was tensioned when the bottom rail was lifted from the bottom. It is hardly added, and it is impossible to prevent the peak of one screen from entering the valley of the other screen, whereas the lifting cord is always tensioned regardless of the position of the bottom rail, It is possible to reliably prevent the peak of the screen from entering the valley of the other screen.

Hereinafter, various embodiments of the present invention will be exemplified. The following embodiments can be combined with each other.
Preferably, the first screen unit includes a plurality of first lifting / lowering cords, and a part of the plurality of first lifting / lowering cords and the rest are arranged on opposite sides in the front-rear direction with the first screen interposed therebetween. ing.
Preferably, the second screen unit has a plurality of second lifting / lowering cords, and the plurality of second lifting / lowering cords are disposed at positions corresponding to the plurality of first lifting / lowering cords. In each set of lifting / lowering cords, either the first lifting / lowering cord or the second lifting / lowering cord is disposed between the first screen and the second screen.
Preferably, the second screen unit has a plurality of second lifting / lowering cords, and the plurality of second lifting / lowering cords are disposed at positions corresponding to the plurality of first lifting / lowering cords. In at least one set of the lifting / lowering cords, both the first lifting / lowering cord and the second lifting / lowering cord are disposed while the first screen and the second screen overlap each other.
Preferably, the first screen unit further includes a first pitch holding cord for holding a vertical interval between the folds of the first screen at a predetermined interval, and the first pitch holding code is set at a predetermined interval. It has a plurality of annular holding portions, and is arranged on the opposite side of the first lifting / lowering cord across the first screen, the holding portion penetrates the first screen, and the first lifting / lowering cord holds the holding Inserted into the section.
Preferably, the second screen unit further includes a second pitch holding cord for holding a vertical interval between the folds of the second screen at a predetermined interval, and the second pitch holding code is set at a predetermined interval. It has a plurality of annular holding portions and is arranged on the opposite side of the second lifting / lowering cord across the second screen, the holding portion penetrates the second screen, and the second lifting / lowering cord holds the holding Inserted into the section.
Preferably, the second screen has a light shielding rate different from that of the first screen, and the second lifting / lowering cord is inserted into the second screen.
Preferably, the second screen has a fabric thinner than the first screen, and a distance between adjacent creases is shorter than the first screen.

It is a perspective view which shows the structure of the pleat screen of 1st Embodiment of this invention. It is a top view of FIG. FIG. 3 is a sectional view taken along line AA in FIG. 2. It is a top view corresponding to Drawing 2 showing the composition of the pleats screen of a 2nd embodiment of the invention. It is a top view corresponding to Drawing 2 showing the composition of the pleat screen of a 3rd embodiment of the present invention. FIG. 6 is a cross-sectional view taken along line AA in FIG. It is a top view corresponding to Drawing 2 showing the composition of the pleat screen of a 4th embodiment of the present invention. FIG. 8 is a cross-sectional view taken along line AA in FIG. It is sectional drawing corresponding to FIG. 8 which shows the state which folded the 1st and 2nd screen. It is a top view corresponding to Drawing 2 showing the composition of the pleat screen of a 5th embodiment of the present invention. FIG. 11 is a sectional view taken along line AA in FIG. 10. It is sectional drawing corresponding to FIG. 11 which shows the state which folded the 1st and 2nd screen. It is a top view corresponding to Drawing 2 showing the composition of the pleats screen of a 6th embodiment of the present invention. FIG. 14 is a sectional view taken along line AA in FIG. 13. It is a perspective view of the area | region A in FIG. It is a top view corresponding to Drawing 2 showing the composition of the pleats screen of a 7th embodiment of the present invention. It is a top view corresponding to Drawing 2 showing the composition of the pleat screen of an 8th embodiment of the present invention. It is a top view corresponding to Drawing 2 showing the composition of the pleats screen of a 9th embodiment of the present invention.

Hereinafter, various embodiments of the present invention will be described. Various characteristic items shown in the following embodiments can be combined with each other.

(First embodiment)
FIG. 1 is a perspective view showing a configuration of a pleated screen according to a first embodiment of the present invention. 2 is a plan view of FIG. 1, and FIG. 3 is a cross-sectional view taken along line AA in FIG. As shown in FIG. 1, the pleated screen of the present embodiment includes first and

second screen units

10a and 10b.

The first screen unit 10a includes a first screen 2a that is suspended from the head box 1 and can be folded in a zigzag shape in the vertical direction, a first bottom rail 3a disposed at the lower end of the first screen 2a, and a head box. The vertical distance between the first elevating cord 5a that is suspended from 1 and supports the first bottom rail 3a and that is operated from the head box 1 side to elevate the first screen 2a and the fold of the first screen 2a is set in advance. And a first pitch holding cord 6a for holding at a predetermined interval.

The second screen unit 10b includes a second screen 2b that is suspended from the head box 1 and can be folded in a zigzag shape in the vertical direction, a second bottom rail 3b disposed at the lower end of the second screen, The vertical distance between the second raising / lowering cord 5b that is suspended from the box 1 and supports the second bottom rail 3b and is operated from the head box 1 side to raise and lower the second screen 2b, and the fold line of the second screen 2b in advance. And a second pitch holding cord 6b for holding at a set interval.

The first and

second screens

2a and 2b (hereinafter also referred to as “screen 2”) are each formed by folding one piece of fabric in a zigzag shape and arranged side by side in the front-rear direction.

As shown in FIG. 3, first and second winding

shafts

4 a and 4 b (hereinafter also referred to as “winding shaft 4”) are independent in the head box 1 based on the operation of an operating device (not shown). And is supported rotatably. The upper ends of the first and second lifting / lowering

cords

5a and 5b (hereinafter also referred to as “lifting / lowering cord 5”) are respectively attached to the winding shaft 4, and are wound around the winding shaft 4 by operation of the operating device. It can be taken or rewound. When the lifting / lowering cord 5 is wound around the winding shaft 4, the first and second bottom rails 3 a and 3 b (hereinafter also referred to as “bottom rail 3”) are pulled up and the screen 2 is folded upward. When the lifting / lowering cord 5 is rewound from the winding shaft 4, the bottom rail 3 is lowered and the screen 2 is extended downward. Since the first and second winding

shafts

4a and 4b are independently rotatable, the first and

second screens

2a and 2b can be lifted and lowered independently.

The upper ends of the first and second

pitch holding cords

6 a and 6 b (hereinafter also referred to as “pitch holding cord 6”) are attached to the head box 1, and the lower ends are attached to the bottom rail 3. The pitch holding cord 6 is set to a length that is substantially tensioned when the lifting / lowering cord 5 is rewound from the winding shaft 4 and the bottom rail 3 is lowered to the lower limit.

The pitch holding cord 6 is provided with a large number of annular holding portions 7 at equal intervals. The pitch holding cord 6 is a cord formed by knitting yarn with a knitting machine, and the yarn is knitted to form the holding portion 7 in the cord. And the thread | yarn is exposed cyclically | annularly for every fixed space | interval, and the holding | maintenance part 7 is formed.

In the screen 2, slits (insertion holes) 8 through which the holding portions 7 can be inserted are formed in every other crease 9 among the creases convex toward the elevating cord 5. The slit 8 is a narrow slit that can be inserted through the holding portion 7 formed of a thin thread. The position of the slit 8 is not particularly limited, and the slit 8 may be provided in a fold that is convex toward the pitch holding cord 6 or may be provided in a portion other than the fold. Moreover, the space | interval which provides the slit 8 is not specifically limited, either, It may be shorter or longer than the space | interval shown in FIG. Further, the vertical positions where the slits 8 are formed by the first screen 2a and the second screen 2b are shifted. Thereby, it is possible to prevent light leakage from the slit 8 in a state where the first and

second screens

2a and 2b are spread. In the plan view of FIG. 2 and the like, for convenience of illustration, the slit 8 is expressed by being slightly recessed from the crease 9, but it is not necessary to have such a shape. 9 are collinear (that is, the slit 8 is not recessed from the crease 9).

Then, each holding portion 7 is inserted into the slit 8 to be exposed on the opposite side of the screen 2, and the lifting / lowering cord 5 is inserted into the holding portion 7 exposed on the opposite side. With such a configuration, as shown in FIG. 3, when the bottom rail 3 is lowered to the lower limit, the front end portion of each holding portion 7 engages with the lifting / lowering cord 5, and each fold 9 is moved downward by each holding portion 7. The screen 2 is held so that the folds of the screen 2 are equally spaced. Further, depending on the material of the fabric of the screen 2, a portion extending obliquely upward from each fold 9 of the screen 2 is supported by the holding portion 7.

That is, in this embodiment, the interval between the holding portions 7 is set to an interval corresponding to every other crease interval in a state where the screen 2 is extended to the lower limit, but is appropriately set according to the position where the slit 8 is provided. Is done. The length of the holding portion 7 is formed so that the diameter of the lifting / lowering cord 5 is added to the folding width of the screen 2.

Next, the operation of the pleated screen configured as described above will be described. As shown in FIGS. 1 and 3, when the lifting / lowering cord 5 is unwound from the winding shaft 4 by operating the operating device and the bottom rail 3 is lowered to the lower limit, the screen 2 is stretched downward. At this time, the front and rear edges of the bottom rail 3 are supported by the lifting / lowering cord 5 and the pitch holding cord 6, and the bottom rail 3 is suspended and supported so that the upper surface thereof is substantially horizontal.

Further, the creases 9 are held at equal intervals in the vertical direction by the holding portion 7 of the pitch holding cord 6. As a result, the folds of the screen 2 are held so as to be substantially equally spaced.

From this state, when the lifting cord 5 is wound up by the winding shaft 4, the bottom rail 3 is pulled up and the screen 2 is folded upward.

By the way, in this embodiment, the first and

second screens

2a and 2b are arranged side by side in the front-rear direction. In such an arrangement, the front and rear screens interfere with each other as described in the section of the prior art. It may not be possible to move up and down smoothly and independently. However, in this embodiment, the lifting / lowering cord 5 is disposed while the first and

second screens

2a and 2b overlap each other, and since the tension is always applied to the lifting / lowering cord 5, the peak portion of one screen is the other. It is not possible to enter the valleys of the screen, and interference between the front and rear screens can be prevented, whereby the front and rear screens can be raised and lowered smoothly and independently.

The point of the present invention is that it is not the pitch holding cord 6 but the lifting cord 5 that is arranged between the front and rear screens. The pitch holding cord 6 is applied with a certain amount of tension when the bottom rail 3 is lowered to the lower limit. However, as the bottom rail 3 is pulled up, the tension applied to the pitch holding cord 6 is weakened, causing interference between the front and rear screens. It may not be possible to stop. On the other hand, since a strong tension is always applied to the lifting / lowering cord 5 regardless of the position of the bottom rail 3, it is possible to always prevent interference between the front and rear screens.

As shown in FIG. 2, the first screen unit 10a has a plurality of first elevating cords 5a, and the adjacent first elevating cords 5a are arranged on the opposite side in the front-rear direction across the first screen 2a. Has been. By arranging in this way, the first bottom rail 3a is easily held horizontally in the front-rear direction. Similarly, the second screen unit 10b has a plurality of second lifting / lowering cords 5b, and the adjacent second lifting / lowering cords 5b are arranged on the opposite side in the front-rear direction across the second screen 2b.

The plurality of second lifting / lowering cords 5b are arranged at positions corresponding to the plurality of first lifting / lowering cords 5a, and in each set of the first lifting / lowering cord 5a and the second lifting / lowering cord 5b, the first screen 2a and the second screen. While 2b overlaps, either one of the 1st raising / lowering cord 5a and the 2nd raising / lowering cord 5b is arrange | positioned. That is, as shown in FIG. 2, the left second lifting / lowering cord 5b is arranged at a position corresponding to the left first lifting / lowering cord 5a to form a set 1, and the right side at a position corresponding to the right first lifting / lowering cord 5a. The second lifting / lowering cord 5b is arranged to form a set 2. In the group 1, the first lifting / lowering cord 5a is arranged while the first screen 2a and the second screen 2b overlap each other. In the group 2, the second lifting / lowering cord 5b includes the first screen 2a and the second screen 2b. Arranged between overlapping. Thus, in each set, one of the first lifting / lowering cord 5a and the second lifting / lowering cord 5b is disposed between the first screen 2a and the second screen 2b. When such an arrangement is adopted, the lifting / lowering cord 5 is arranged while the front and rear screens overlap each other over a wide range in the longitudinal direction of the screen 2, so that interference between the front and rear screens can be more reliably prevented. it can.

(Second Embodiment)
FIG. 4 is a plan view corresponding to FIG. 2 showing the configuration of the pleated screen according to the second embodiment of the present invention. The pleated screen according to the second embodiment is characterized in that the first elevating cord 5a is arranged between the first screen 2a and the second screen 2b in both the group 1 and the group 2. In the arrangement as shown in FIG. 2, when viewed from the direction of the arrow X (usually from the indoor side), the first pitch holding cord 6a can be seen on the left side and the first lifting cord 5a can be seen on the right side. The balance may not be preferable. On the other hand, in this embodiment, since the 1st pitch holding | maintenance cord 6a can be seen on both right and left sides, there exists an advantage that the balance of the beauty | look of right and left is excellent.

(Third embodiment)
FIG. 5 is a plan view corresponding to FIG. 2 showing the configuration of the pleated screen according to the third embodiment of the present invention, and FIG. 6 is a cross-sectional view taken along line AA in FIG. The pleated screen according to the third embodiment is characterized in that the first and second lifting / lowering

cords

5a and 5b are arranged between the first screen 2a and the second screen 2b in both the set 1 and the set 2. Yes. In such a configuration, two lifting cords 5 are disposed in each set while the first screen 2a and the second screen 2b overlap, and interference between the front and rear screens can be more reliably prevented. Can do.

(Fourth embodiment)
FIG. 7 is a plan view corresponding to FIG. 2 showing the configuration of the pleated screen according to the fourth embodiment of the present invention, FIG. 8 is a cross-sectional view taken along line AA in FIG. 7, and FIG. It is sectional drawing corresponding to FIG. 8 which shows the state which folded the 1st and

2nd screen

2a, 2b. The pleated screen of the fourth embodiment is characterized in that the second lifting / lowering cord 5b is inserted through a through hole 11 provided in the second screen 2b. In the first to third embodiments, at least two cords are arranged when the lifting / lowering cord 5 and the pitch holding cord 6 are combined between the first screen 2a and the second screen 2b. Then, only one lifting / lowering cord 5 is arranged between the first screen 2a and the second screen 2b. In such a configuration, the first screen 2a and the second screen 2b are easily brought close to each other in the front-rear direction.

Further, in the configuration in which the lifting / lowering cord 5 is inserted into the holding unit 7 after the holding unit 7 is inserted into the slit 8, it is necessary to insert a large number of holding units 7 into the slit 8 one by one. Take it. On the other hand, like the right unit (second screen unit 10 b) in FIG. 8, the lifting / lowering cord 5 is not passed through the screen 2 but the lifting / lowering cord 5 is passed through the screen 2 and the lifting / lowering cord 5 is inserted into the holding portion 7. In the structure to be made, the trouble of inserting the holding portions 7 through the screen 2 one by one can be saved, and the manufacture is easy. However, in the latter configuration, there is a problem that light leakage may occur from the through hole 11. Therefore, the screen 2 having the through hole 11 (second screen 2 b) preferably has a light shielding rate different from that of the first screen. More preferably, the rate is lower than that of the first screen 2a. This is because when the light shielding rate of the screen 2 is relatively low, light leakage from the through hole 11 does not become a problem. Such a screen 2 having a relatively low light shielding rate can be formed of, for example, lace fabric.

(Fifth embodiment)
FIG. 10 is a plan view corresponding to FIG. 2, showing the configuration of the pleated screen according to the fifth embodiment of the present invention, FIG. 11 is a cross-sectional view taken along line AA in FIG. 10, and FIG. It is sectional drawing corresponding to FIG. 11 which shows the state which folded the 1st and

2nd screen

2a, 2b. The pleated screen of the fifth embodiment is characterized in that the fabric of the second screen 2b is thinner than the first screen 2a and the distance between adjacent folds is smaller than the first screen 2a.

FIG. 9 shows the first and second bottom rails when the fabric of the second screen 2b is thinner than the first screen 2a and the distance between adjacent folds is the same between the first screen 2a and the second screen 2b. The state when 3a and 3b are raised to the upper limit is shown. The thickness of the screen 2 in the folded state is referred to as a convolution width (see FIGS. 9 and 12). As shown in FIG. 9, the convolution width of the second screen 2b having a thin fabric is smaller than that of the first screen 2a. However, when the pleat screen is installed near the window, the size of the opening of the window that is obtained when the screen 2 is folded is determined by the folding width of the first screen 2a having a large folding width. Even if the convolution width of 2b is small, it does not lead to enlarging the opening.

Therefore, in the present embodiment, the distance between adjacent folds of the second screen 2b having a thin fabric is made shorter than that of the first screen 2a. As the distance between adjacent creases becomes shorter, the number of times of folding increases, so the convolution width increases, and as shown in FIG. 12, the difference between the convolution widths of the first screen 2a and the second screen 2b decreases. In the case of such a configuration, the size of the opening of the window obtained with the screen 2 folded is substantially unchanged, and the length in the front-rear direction of the second screen 2b in the folded state is short. Therefore, the length of the whole pleated screen in the front-rear direction can be shortened.

Further, it is preferable that the distance between adjacent folds of the second screen 2b is set so that the folding widths of the first screen 2a and the second screen 2b are equal. In this case, when the 2nd screen 2a and the 2nd screen 2b are folded, the position of the bottom face of the 1st and 2nd

bottom rails

3a and 3b becomes equal, and it is excellent in aesthetics.

In one example, the distance between adjacent folds of the first screen 2a is 25 mm, and the distance between adjacent folds of the first screen 2a is 15 mm.

(Sixth embodiment)
FIG. 13 is a plan view corresponding to FIG. 2, showing the configuration of the pleated screen according to the sixth embodiment of the present invention, FIG. 14 is a cross-sectional view taken along line AA in FIG. 13, and FIG. It is a perspective view of the area | region A in FIG. The pleated screen of the sixth embodiment is characterized in that the lifting / lowering cord 5 and the pitch holding cord 6 are arranged on the same side of the screen 2. In the first embodiment or the like, the lifting / lowering cord 5 and the pitch holding cord 6 are disposed on the opposite sides of the screen 2, and the holding portion 7 from the pitch holding cord 6 is passed through the screen 2 to the opposite side of the screen 2. However, in this embodiment, after the holding portion 7 from the pitch holding cord 6 penetrates the screen 2 and is exposed to the opposite side of the screen 2, the lifting / lowering cord 5 is inserted into the holding portion 7. The lifting / lowering cord 5 is inserted into the holding portion 7 after passing through the screen 2 again and exposed to the original side. For this reason, the screen 2 is provided with two slits 8 for each holding part 7 for inserting the holding part 7 twice.

According to the configuration of the present embodiment, it is possible to hide the code when viewed from the direction of the arrow X in FIG.

(Seventh to eighth embodiments)
16 to 17 are plan views corresponding to FIG. 2 and showing the configuration of the pleated screen according to the seventh to eighth embodiments of the present invention. In the first to sixth embodiments, the case where two lifting cords 5 are arranged in the longitudinal direction of each screen 2 has been described as an example, but the number of lifting cords 5 is shown in FIGS. 16 to 17. The number may be three as shown in FIG. Further, the arrangement of the lifting / lowering cord 5 and the pitch holding cord 6 is not limited to that illustrated in FIGS. 16 to 17, and at least one lifting / lowering cord 5 is provided between the first screen 2a and the second screen 2b. Anything can be used.

(Ninth embodiment)
FIG. 18 is a plan view corresponding to FIG. 2 and showing the configuration of the pleated screen according to the ninth embodiment of the present invention. In this embodiment, the lifting / lowering cords 5 at both ends and the lifting / lowering cords 5 between them are arranged on opposite sides in the front-rear direction with the screen 2 in between. As in the first, seventh, and eighth embodiments, not only when the adjacent lifting / lowering cords 5 are disposed on the opposite sides in the front-rear direction across the screen 2, but also in the present embodiment Even when a part of the lifting / lowering cord 5 and the rest of the lifting / lowering cord 5 are disposed on the opposite sides in the front-rear direction with respect to the screen 2, the advantage that the bottom rail 3 is easily held horizontally in the front-rear direction can be obtained. .

1 ... head box, 2 ... screen, 3 ... bottom rail, 5 ... lifting cord, 6 ... pitch holding cord, 7 ... holding section, 8 ... slit (insertion hole) ), 9 ... crease

Claims

A first screen suspended from the head box and foldable in a zigzag shape in the vertical direction, a first bottom rail disposed at the lower end of the first screen, and suspended from the head box to support the first bottom rail And a first screen unit that is operated from the head box side to move up and down the first screen;
A second screen suspended from the head box and foldable in a zigzag shape in the vertical direction, a second bottom rail disposed at the lower end of the second screen, and a second bottom rail suspended from the head box. A second screen unit that includes a second lifting / lowering cord that supports and operates the head box to raise and lower the second screen;
The first screen and the second screen can be moved up and down independently of each other, and are arranged side by side in the front-rear direction,
A pleated screen in which at least one of the first lifting cord and the second lifting cord is disposed between the first screen and the second screen.
The first screen unit has a plurality of first elevating cords,
2. The pleated screen according to claim 1, wherein a part of the plurality of first elevating cords and the rest are arranged on opposite sides in the front-rear direction with respect to the first screen.
The second screen unit has a plurality of second elevating cords,
The plurality of second lifting / lowering cords are arranged at positions corresponding to the plurality of first lifting / lowering cords,
In each set of the 1st raising / lowering cord and the 2nd raising / lowering cord, either the 1st raising / lowering cord or the 2nd raising / lowering cord is arrange | positioned while the 1st screen and the 2nd screen overlap. Pleated screen as described.
The second screen unit has a plurality of second elevating cords,
The plurality of second lifting / lowering cords are arranged at positions corresponding to the plurality of first lifting / lowering cords,
The at least one set of the 1st raising / lowering cord and the 2nd raising / lowering cord WHEREIN: Between the 1st screen and the 2nd screen, both the 1st raising / lowering cord and the 2nd raising / lowering cord are arrange | positioned. Pleated screen.
The first screen unit further includes a first pitch holding cord for holding a vertical interval between the folds of the first screen at a preset interval,
The first pitch holding cord has a plurality of annular holding portions at predetermined intervals, and is disposed on the opposite side of the first lifting cord across the first screen in the front-rear direction. The pleated screen according to any one of claims 1 to 4, wherein the pleat screen passes through one screen and a first lifting / lowering cord is inserted through the holding portion.
The second screen unit further includes a second pitch holding cord for holding a vertical interval between the folds of the second screen at a predetermined interval,
The second pitch holding cord has a plurality of annular holding portions at predetermined intervals, and is disposed on the opposite side of the second lifting cord across the second screen in the front-rear direction. The pleated screen according to any one of claims 1 to 5, wherein the pleat screen passes through the two screens and a second lifting / lowering cord is inserted through the holding portion.
The pleated screen according to any one of claims 1 to 5, wherein the second screen has a light shielding rate different from that of the first screen, and the second lifting / lowering cord is inserted through the second screen.
The pleated screen according to any one of claims 1 to 7, wherein the second screen is thinner than the first screen, and a distance between adjacent folds is shorter than the first screen.