CN109424307B

CN109424307B - Pleated curtain

Info

Publication number: CN109424307B
Application number: CN201810963813.9A
Authority: CN
Inventors: 山岸万人; 江波户武信; 中村元
Original assignee: Tachikawa Corp
Current assignee: Tachikawa Corp
Priority date: 2017-08-30
Filing date: 2018-08-23
Publication date: 2022-06-14
Anticipated expiration: 2038-08-23
Also published as: JP2019044355A; JP6998706B2; CN109424307A

Abstract

The invention provides a pleated curtain which is provided with an upper curtain cloth and a lower curtain cloth and improves the aesthetic degree; the pleated curtain of the invention comprises an upper curtain cloth (6U) which is hung on an upper beam (1) and supports a middle beam (5) and a lower curtain cloth (6L) which is hung on the middle beam (5) and supports a lower beam (7), wherein when the middle beam (5) is lifted or lowered by an upper lifting rope (3U) and the lower beam (7) is lifted or lowered by a lower lifting rope (3L), at least one of the upper lifting ropes (3U) is arranged to be seen from one side of the upper curtain cloth (6U), at least one of the lower lifting ropes (3L) is arranged to be seen from the other side of the upper curtain cloth (6U), and is arranged to be not seen from the one side; further, the pleated curtain of the present invention is configured such that: when the center sill (5) is at the lowest position, the front side of the center sill (5) is inclined downwards, and when the center sill (5) is at the highest position, the inclination is reduced.

Description

Pleated curtain

Technical Field

The present invention relates to a pleated curtain that can suspend and support a vertically bendable curtain from an upper beam and can adjust the amount of lighting by lifting and lowering the curtain.

Background

In the pleated curtain, a curtain fabric that can be folded in the vertical direction is suspended and supported from an upper beam, and the curtain fabric is raised or lowered by an operating device, thereby appropriately adjusting the lighting amount.

In general, in a pleated curtain in which a curtain fabric is suspended from an upper beam and supported, the curtain fabric is made of a curtain fabric (a shade fabric) or a lace fabric (a lighting fabric), and the amount of lighting can be adjusted by folding the curtain fabric.

As one of the pleated screens, there is a pleated screen in which: that is, the fabric which can be bent in a zigzag manner in the vertical direction is configured by an upper fabric and a lower fabric which are formed by a plurality of fabrics, and a lower end edge of the upper fabric and an upper end edge of the lower fabric are attached to the center sill, and the center sill and the lower sill are suspended and supported by independent lift cords.

In the pleated cover having the upper cover and the lower cover as described above, the upper cover and the lower cover can be made of materials having different color tones and can be separated by the center sill. In addition, the fabric for blocking the external light can be switched by folding one or both of the upper curtain cloth and the lower curtain cloth, thereby improving the degree of freedom of adjusting the lighting amount and the like. Further, the center sill is not limited to one, and a plurality of center sills may be provided in combination with three or more cords.

However, the following pleated shades have been disclosed: that is, the upper cord and the lower cord for raising and lowering the upper cord and the lower cord, respectively, are provided with one cord hole in the upper cord, and two cords, i.e., the upper cord and the lower cord, are inserted into the one cord hole (see, for example, patent document 1).

Further, the following pleated curtains are also disclosed: that is, the upper cord and the lower cord for raising and lowering the upper cord and the lower cord, respectively, are provided with two cord holes in parallel in the left-right direction in the upper cord, and the upper cord and the lower cord are inserted into the two cord holes, respectively (see, for example, patent document 2).

[ Prior art documents ]

[ patent document ]

Patent document 1: japanese laid-open patent publication No. 2002-332785

Patent document 2: japanese laid-open patent publication No. 2002-115474

As described above, in the pleated curtain disclosed in patent document 1, two cords, i.e., the upper lift cord and the lower lift cord, are inserted into one lift cord hole of the upper curtain.

In the pleated curtain disclosed in patent document 2, two lift cord holes, i.e., an upper lift cord hole and a lower lift cord hole, are provided in the upper curtain.

The above-described conventional pleated curtain has the following problems: that is, for example, when the upper curtain and the lower curtain are made of different colors, the upper lift cord and the lower lift cord are not in harmony with the color of the fabric (particularly, the upper curtain), and the appearance is deteriorated.

In the conventional pleated curtain described above, although the fabric for blocking the external light can be switched between the upper fabric and the lower fabric by raising and lowering the center sill, it is also required to improve the appearance as much as possible.

Disclosure of Invention

In view of the above problems, the present invention provides a pleated curtain including an upper curtain and a lower curtain and having improved appearance.

A pleated cover according to a first aspect of the present invention is a pleated cover including an upper fabric suspended from an upper beam to support a center beam and a lower fabric suspended from the center beam to support a lower beam, wherein the center beam is raised or lowered by a plurality of first lift cords, and the lower beam is raised or lowered by a plurality of second lift cords, wherein at least one of the first lift cords is disposed so as to be visible from one side of the upper fabric, and at least one of the second lift cords is disposed so as to be invisible from the other side of the upper fabric.

A pleated curtain according to a second embodiment of the present invention includes an upper fabric suspended from an upper beam to support a center beam and a lower fabric suspended from the center beam to support a lower beam, wherein the center beam is raised or lowered by a plurality of first raising/lowering cords, and the lower beam is raised or lowered by a plurality of second raising/lowering cords, and is characterized in that: the front side of the center sill is inclined downward when the center sill is at the lowest position, and the inclination is reduced when the center sill is at the highest position.

Further, the pleated blinds according to the first and second embodiments of the present invention are characterized in that: the upper cord fabric is made of a fabric that can be bent into a shape like く, and the lower cord fabric is made of a fabric that can be bent into a shape like く or a honeycomb fabric.

Further, the pleated blinds according to the first and second embodiments of the present invention are characterized in that: the upper curtain cloth and the lower curtain cloth have fabric colors with different hues, and the first lifting rope has a rope color with the same hue as the fabric color of the upper curtain cloth.

Further, the pleated blinds according to the first and second embodiments of the present invention are characterized in that: each of the second lifting ropes has a rope color having the same hue as the fabric color of the lower cord fabric.

Further, the pleated blinds according to the first and second embodiments of the present invention are characterized in that: each of the plurality of first lift cords is attached to the center sill after being disposed in front of the upper fabric from the upper beam or suspended by being inserted into a first lift cord hole provided in the upper fabric; each of the second lift cords is suspended from the upper member on the back surface of the upper fabric, then passes through the center sill or bypasses the rear of the center sill, and is inserted into a second lift cord hole provided in the lower fabric.

Further, the pleated blinds according to the first and second embodiments of the present invention are characterized in that: the center sill is bent and penetrated from the rear to the front by each of the second lift cords.

Further, the pleated blinds according to the first and second embodiments of the present invention are characterized in that: the fixing position of the lower end of each of the first lifting ropes with respect to the center sill is arranged in front of the hanging position of the second lifting rope in the lower curtain.

Further, the pleated blinds according to the first and second embodiments of the present invention are characterized in that: the front side of the center sill is inclined downward when the center sill is at the lowest position by the action of a space maintaining rope for maintaining the space of the upper curtain cloth.

(effect of the invention)

According to the present invention, the beauty of a pleated curtain including an upper curtain and a lower curtain can be improved.

Drawings

Fig. 1 is a front view showing a schematic configuration of a pleated curtain according to an embodiment of the present invention.

Fig. 2 is a side view showing a schematic configuration of a pleated curtain according to an embodiment of the present invention.

Fig. 3(a) and 3(b) are front views showing a schematic configuration of a pleated curtain according to an embodiment of the present invention and a schematic configuration of a pleated curtain according to the related art in a highlighted manner so as to be contrastable with each other.

Fig. 4(a) and 4(b) are side views schematically showing the structures of pleated curtains in

modifications

1 and 2 according to the present invention, respectively.

Fig. 5 is a side cross-sectional view showing the relationship between the upper lift cord and the lower lift cord and the schematic configuration of the center sill in the pleated curtain according to the embodiment of the present invention.

Fig. 6(a) and 6(b) are side views schematically showing states of the center sill of the pleated curtain according to the embodiment of the present invention at the lowest position and the highest position, respectively.

Fig. 7(a) and 7(b) are side views schematically showing states of the center sill in the pleated curtain according to modification 3 of the present invention at the lowermost position and at the uppermost position, respectively.

(symbol description)

1 Upper Beam

2 support

3U upside lifting rope

3L lower side lifting rope

4U, 4L lifting rope hole

5 middle beam

6U upper curtain cloth

6L lower curtain cloth

7 lower beam

11. 12 spacing holding rope

51 rope support member

Detailed Description

Hereinafter, a pleated curtain according to the present invention will be described with reference to the drawings. In the present specification, the front view of the pleated screen shown in fig. 1 will be described by defining the upper side and the lower side of the screen as "upper side" (or "upper side") and "lower side" (or "lower side"), respectively, the left side of the screen as the left side of the pleated screen, and the right side of the screen as the right side of the pleated screen, with reference to the suspension direction of the screen. Note that the front side in the front view of fig. 1 is referred to as "front side (indoor side)", and the opposite side is referred to as "rear side (outdoor side)".

A pleated curtain according to an embodiment having an upper fabric 6U and a lower fabric 6L will be described with reference to fig. 1 and 2. Fig. 1 is a front view showing a schematic configuration of a pleated curtain according to an embodiment of the present invention. Fig. 2 is a side view showing a schematic configuration of a pleated curtain according to an embodiment of the present invention.

In the pleated curtain shown in fig. 1 and 2, an upper curtain 6U capable of being bent in a zigzag shape is suspended from the head rail 1, and the lower end of the upper curtain 6U is attached to the upper surface of the center rail 5. The upper beam 1 is fixed to a mounting surface such as a ceiling surface by a bracket 2.

Similarly, the upper end of the lower cord 6L that can be bent in a zigzag shape is attached to the lower surface of the center sill 5, and the lower end of the lower cord 6L is attached to the lower sill 7.

The right and left ends of the upper beam 1 are respectively suspended and supported with first and second operating ropes 9L, 9U. The first operating cord 9L performs an operation of pulling out or drawing in a plurality of (two in this example) lower lifting cords 3L for lifting the lower beam 7 from the cord outlet 1a of the upper beam 1 to the upper beam 1. The second operation rope 9U performs an operation of pulling out the plurality of (two in this example) upper side lift ropes 3U for lifting the center sill 5 from the rope outlet 1b of the upper sill 1 or pulling in the upper sill 1.

One end of each lower lift rope 3L is connected to a first operating rope 9L via a rope balancer 8L, and the other end of each lower lift rope 3L is guided in the upper beam 1 via a brake device (not shown) provided in the upper beam 1 and is turned downward via a support member 10 (see fig. 2) of a support pulley 10a disposed at an appropriate position in the upper beam 1. The other end of each lower lift cord 3L turned downward is inserted through the lower curtain 6L and connected to the lower beam 7 by passing through the middle beam 5 through the back surface of the upper curtain 6U and inserting into a lift cord hole 4L provided in the lower curtain 6L, without being inserted from the upper beam 1 into the lift cord hole 4U provided in the upper curtain 6U.

Therefore, when the first operating rope 9L is operated to pull the lower lift rope 3L out of the upper frame 1, the lower frame 7 is lifted, and when the first operating rope 9L is released and the lock of the brake device is braked, the lower lift rope 3L is prevented from being drawn into the upper frame 1, and the lower frame 7 can be suspended and supported at a desired position.

Further, by releasing the first operating cord 9L after the first operating cord 9L is operated to slightly pull out the lower lift cord 3L from the upper beam 1 and the lock of the brake device is released, the lower lift cord 3L can be pulled into the upper beam 1, and the lower beam 7 can be lowered by the weight of the lower beam 7.

Further, one end of each upper lift rope 3U is connected to a second operation rope 9U via a rope balancer 8U, and the other end of each upper lift rope 3U is guided in the upper beam 1 via a brake device (not shown) provided in the upper beam 1, and is steered downward via a support member that supports a pulley disposed at an appropriate position in the upper beam 1. The other end of each upper lifting cord 3U turned downward is inserted into a lifting cord hole 4U provided in the upper fabric 6U, and thereby penetrates the upper fabric 6U and is connected to the center sill 5.

Therefore, when the second operating rope 9U is operated to pull the upper lift rope 3U out of the upper frame 1, the center frame 5 is lifted, and when the lock of the brake device is braked by releasing the second operating rope 9U, the upper lift rope 3U is prevented from being drawn into the upper frame 1, and the center frame 5 can be suspended and supported at a desired position.

When the second operation rope 9U is operated to slightly pull out the upper lift rope 3U from the upper frame 1 and the lock of the brake device is released, the upper lift rope 3U is pulled into the upper frame 1 by releasing the second operation rope 9U, and the center frame 5 can be lowered by the weight of the center frame 5.

As described above, in the pleated curtain of the present embodiment, when the bottom rail 7 is lowered in a state in which the center sill 5 is suspended directly below the top sill 1 and the upper curtain 6U is folded between the top sill 1 and the center sill 5, the lower curtain 6L is suspended and supported from the top sill 1.

When the center sill 5 is lowered onto the lower sill 7 in a state where the lower sill 7 is lowered to the lowest position, the following state is assumed: that is, the lower curtain 6L is folded between the center sill 5 and the bottom sill 7, and the upper curtain 6U is suspended and supported between the top sill 1 and the center sill 5.

In addition, when the lower beam 7 is lifted to the highest position and released, the upper curtain 6U and the lower curtain 6L can be folded between the upper beam 1 and the lower beam 7 by lifting the lower beam 7 by operating the first operating cord 9L without lifting the center beam 5.

As shown in fig. 2, a pitch holding rope 11 is attached to the center sill 5 while hanging from the upper member 1, and a pitch holding rope 12 is attached to the lower member 7 while hanging from the center sill 5, behind the upper lift rope 3U, that is, on the outdoor side.

A plurality of

annular support ropes

11a and 12a are provided at equal intervals on the

pitch maintaining ropes

11 and 12, respectively, and an upper lifting rope 3U and a lower lifting rope 3L are inserted into the support ropes. When the center sill 5 is lowered to stretch and expand the upper curtain 6U, the upper curtain 6U is supported by the support cords 11a, and the fold lines of the upper curtain 6U are held at substantially equal intervals. Similarly, when the lower beam 7 is lowered to stretch and expand the lower curtain 6L, the lower curtain 6U is supported by the support cords 12a, and the fold lines of the lower curtain 6L are held at substantially equal intervals.

(Fabric color of curtain cloth and rope color of lifting rope)

In the pleated curtain of the present embodiment shown in fig. 1 and 2, the upper fabric 6U and the lower fabric 6L are configured to have different fabric colors. For example, the upper fabric 6U may be a green fabric and the lower fabric 6L may be a yellow fabric.

In the pleated curtain of the present embodiment shown in fig. 1 and 2, the upper lift cord 3U and the lower lift cord 3L are configured to have different cord colors, and the upper lift cord 3U has a first color tone of the same type as the upper curtain 6U and the lower lift cord 3L has a second color tone of the same type as the lower curtain 6L. For example, the upper lift cord 3U may be a green tether and the lower lift cord 3L may be a yellow tether.

In the pleated curtain of the present embodiment shown in fig. 1 and 2, as shown in fig. 2, the lower lift cord 3L is inserted through the lower fabric 6L and connected to the underbeam 7 by hanging down on the back surface of the upper fabric 6U and inserting into the lift cord hole 4L provided in the lower fabric 6L, without being inserted through the lift cord hole 4U provided in the upper fabric 6U.

That is, as shown in fig. 1 and 2, only the lift cord holes 4U into which the upper lift cords 3U are inserted are provided in the upper curtain 6U.

Thus, in the pleated curtain of the present embodiment shown in fig. 1 and 2, as highlighted in fig. 3(a), the upper raising/lowering cord 3U has the same kind of first color tone as the upper curtain 6U, and the lower raising/lowering cord 3L has the same kind of second color tone as the lower curtain 6L, so that the appearance can be improved.

For example, in the conventional technique disclosed in patent document 1, as shown in fig. 3(b) by force, two ropes, an upper lifting rope 3U and a lower lifting rope 3L, are inserted into one lifting rope hole 4U of an upper curtain 6U. Therefore, in the case of the conventional technique, even if the upper lifting rope 3U and the lower lifting rope 3L are configured to have different rope colors, the upper lifting rope 3U has the same kind of first color tone as the upper curtain 6U, and the lower lifting rope 3L has the same kind of second color tone as the lower curtain 6L, the aesthetic appearance is deteriorated.

As can be understood from fig. 3(a) by comparing with the conventional example shown in fig. 3(b), the pleated curtain of the embodiment shown in fig. 1 and 2 is configured such that the sizes of the

lift cord holes

4U and 4L provided in the upper curtain 6U and the lower curtain 6L for inserting the upper lift cord 3U and the lower lift cord 3L, respectively, are extremely small, that is, the pleated curtain is sized to accommodate only one of the upper lift cord 3U and the lower lift cord 3L without a space for accommodating other cords or the like. This improves the appearance design and reduces light leakage from the lifter holes 4U and 4L.

Furthermore, in the pleated curtain of the embodiment shown in fig. 1 and 2, as can be understood from fig. 3(a) by comparing with the conventional configuration shown in fig. 3(b), both the cross-sectional area of the upper lift cord 3U and the lower lift cord 3L and the area of the

lift cord holes

4U and 4L are smaller than the area of the conventional configuration. This improves the appearance design, and also restricts the movement of the upper fabric 6U and the lower fabric 6L in the vertical direction during the lifting operation, so that the movement variation width (for example, the variation in the horizontal direction) of the upper fabric 6U and the lower fabric 6L in the lifting operation is reduced, and the overall blind can be maintained in a beautiful state.

Further, in the pleated curtain according to the embodiment shown in fig. 1 and 2, the position of the lift cord hole 4L is shifted to a position further rearward than the center position of the front-rear direction width when the lower curtain 6L is folded (or the center position of the front-rear direction width of the center sill 5) (see fig. 5 described later in detail). Therefore, in the pleated curtain of the embodiment shown in fig. 1 and 2, as can be understood from fig. 3(a) by comparing with the conventional art shown in fig. 3(b), the appearance design can be improved by reducing the extent to which the lower lift cord 3L is seen when the lower curtain 6L is viewed from the front as compared with the conventional art.

Therefore, according to the pleated curtain of the embodiment shown in fig. 1 and 2 according to the present invention, the beauty of the pleated curtain including the upper curtain 6U and the lower curtain 6L can be improved. However, for example, fig. 3(a) shows an example in which the upper cloth 6U has two upper left and right lift cords 3U inserted into the left and right lift cord holes 4U, respectively, and the lower lift cord 3L is not inserted into the lift cord holes 4U, but either of the left and right lift cord holes 4U may be configured such that the lower lift cord 3L is inserted as in fig. 3(b), or may be configured so as to be positioned on the rear surface side of the upper cloth 6U.

In the example shown in fig. 1 and 2, the example in which the lift cord hole 4U is provided in the upper curtain 6U and the upper lift cord 3U is inserted into the lift cord hole 4U is described, but the upper lift cord may be configured as in modification 1 shown in fig. 4 (a): instead of the lift cord holes 4U being provided in the upper curtain 6U, the upper lift cord 3U is suspended in front of the upper curtain 6U, and the end of the upper lift cord 3U is attached to the center sill 5. In this case, the upper lift cord 3U has the same kind of first color tone as the upper curtain 6U, and the lower lift cord 3L has the same kind of second color tone as the lower curtain 6L, so that the appearance can be improved. The shape of the center sill 5 and the shape of the lower sill 7 can be arbitrarily set.

Therefore, the upper cord 6U may not be inserted through the upper lift cord 3U and the lower lift cord 3L, and although not shown in fig. 4(a), the upper cord 6U may be held by the pitch holding cord 11.

As in modification 2 shown in fig. 4(b), the configuration may be such that: the lower curtain cloth 6L may be formed of a honeycomb fabric, in addition to a fabric that can be bent in a zigzag shape or く (japanese language). Further, in combination with the

modifications

1 and 2, the upper cord 6U may be provided with no lift cord hole 4U, the upper lift cord 3U may be suspended in front of the upper cord 6U, the end portion of the upper lift cord 3U may be attached to the center sill 5, and the lower cord 6L may be made of a honeycomb fabric. In this case, the upper lift cord 3U has the same kind of first color tone as the upper curtain 6U, and the lower lift cord 3L has the same kind of second color tone as the lower curtain 6L, so that the appearance can be improved. In addition, when the fabric is made of a honeycomb-shaped fabric, since the lower lifting cord 3L can be inserted into the interior thereof, deterioration of the appearance caused by the lower lifting cord 3L being seen is eliminated, and it is no longer necessary to make the cord color of the lower lifting cord 3L the same as the fabric color of the lower curtain 6L.

Further, since the appearance can be improved when the upper lift cord 3U has the same first color tone as the upper curtain 6U and the lower lift cord 3L is disposed on the rear surface of the upper curtain 6U, it is not necessary to pass the lower lift cord 3L through the center sill 5 as shown in fig. 2, and the lower lift cord 3L may be routed behind the center sill 5.

(inclination of center sill at lowest position)

However, in order to effectively utilize the fact that the fabric for shielding the external light can be switched between the upper fabric 6U and the lower fabric 6L by the lifting of the center sill 5 and to more effectively improve the appearance as much as possible, in the pleated curtain according to the embodiment of the present invention shown in fig. 1 and 2, the lower lifting cord 3L is bent from the rear side toward the front side with respect to the center sill 5 and penetrates the center sill 5. Thereby, the structure is as follows: when the center sill 5 is at the lowest position, the front side of the center sill 5 is inclined downward, and when the center sill 5 is at the highest position, the inclination of the center sill 5 inclined downward at the lowest position is reduced.

More specifically, as shown in fig. 5, first, in the pleated curtain of the embodiment shown in fig. 1 and 2, the lower edge portion of the upper curtain 6U is attached to the center sill 5 by the fabric retainer 61, and the upper edge portion of the lower curtain 6L is attached to the center sill 5 by the fabric retainer 62.

Then, the upper curtain 6U is provided with a lifting rope hole 4U so that the lifting rope 3U hangs down at a substantially central position of the front-rear direction width of the upper curtain 6U when folded (or at a position spaced apart from the front-rear end by a distance b with respect to the front-rear direction width a of the center sill 5). On the other hand, in the lower curtain 6L, a lifting rope hole 4L is provided in the lower curtain 6L so that the lower lifting rope 3L hangs down at a position more rearward than the center position of the front-rear direction width when the lower curtain 6L is folded (or at a position spaced apart from the front end by a distance c and spaced apart from the rear end by a distance d (< c) with respect to the front-rear direction width a of the center sill 5).

Therefore, a rope support member 51 for guiding the penetration of the lower lift rope 3L while holding the lower end of the upper lift rope 3U by a knot or the like is provided inside the center sill 5. The rope support member 51 has

pins

51a and 51b, and the lower lift rope 3L is bent and guided by the

pins

51a and 51b to penetrate the center sill 5. The string support member 51 can hold the lower end portion of the pitch holding string 11 suspended from the upper beam 1 by a knot or the like, and can hold the upper end portion of the pitch holding string 12 whose lower end portion is attached to the lower beam 7 by a knot or the like.

When the lower lift cord 3L is bent and inserted from the rear to the front with respect to the center sill 5 in this manner, as shown in fig. 6(a), the front side of the center sill 5 is inclined downward at an angle θ when the center sill 5 is at the lowest position, and as shown in fig. 6(b), the inclination of the downward inclination at the lowest position is reduced to be substantially horizontal when the center sill 5 is at the highest position.

In particular, in the example shown in fig. 6, the lower end of the upper lift cord 3U is located forward of the position of the lift cord hole 4L in the lower curtain 6L with respect to the fixed position of the center sill 5, so that the center sill 5 inclined at the lowest position becomes substantially horizontal when it is raised.

That is, since the lower lift cord 3L is bent and inserted from the rear to the front with respect to the center sill 5, the tension of the upper lift cord 3U is not present when the center sill 5 is at the lowest position, and the front side of the center sill 5 can be brought into the state shown in fig. 6(a) in which it is inclined downward at the angle θ.

On the other hand, when the center sill 5 is raised, the center sill 5 is about to be horizontal by the tension of the upper lift cord 3U, and therefore, as shown in fig. 6(b), when the center sill 5 is at the highest position, the inclination of the center sill 5 inclined downward at the lowest position is reduced to be substantially horizontal.

As described above, when the front side of the center sill 5 is inclined downward at the lowest position as shown in fig. 6(a), the fabric surface of the upper curtain 6U can be seen in a wider range when viewed from an obliquely upward direction, and the appearance can be improved.

On the other hand, as shown in fig. 6(b), the downward inclination of the center sill 5 at the highest position is reduced and the center sill is substantially horizontal, and therefore, the fabric surface of the lower curtain 6L is sufficiently spread without impairing the appearance design.

In the present example, the front side of the center sill 5 is configured to be inclined downward at the lowest position by bending and passing the lower lift cord 3L from the rear to the front with respect to the center sill 5, but the front side of the center sill 5 may be inclined downward at the lowest position by the pitch holding cord 11 for the upper curtain 6U.

For example, as in modification 3 shown in fig. 7(a), even when the lower lift cord 3L is inserted through the center sill 5 in the vertical direction, the tension of the upper lift cord 3U is lost when the center sill 5 is at the lowest position, and on the other hand, the front side of the center sill 5 can be brought into a state of being inclined downward at an angle θ by slightly lifting the rear side of the center sill 5 by the pitch maintaining cord 11.

In the modification 3, as shown in fig. 7(b), even when the lower lift cord 3L is inserted through the center sill 5 in the vertical direction, the tension of the center sill 5 at the rising time of the holding cord 11 is lost, and the center sill 5 attempts to become horizontal due to the tension of the upper lift cord 3U, so that the inclination of the center sill 5 inclined downward at the lowest position is reduced to be substantially horizontal when the center sill 5 is at the highest position.

Further, the following configuration may be adopted: by both the action of the bending penetration of the lower lift cord 3L in the center sill 5 shown in fig. 6 and the action of the pitch maintaining cord 11 shown in fig. 7 to suspend the center sill 5, the front side of the center sill 5 is inclined downward when the center sill 5 is at the lowest position, and the inclination of the downward inclination at the lowest position is reduced when the center sill 5 is at the highest position.

In this way, particularly when there is a mismatch in color tone between the center sill 5 and the upper curtain 6U, the front side of the center sill 5 is inclined downward when the center sill 5 is at the lowest position, and the inclination of the downward inclination at the lowest position is reduced when the center sill 5 is at the highest position, so that the color tone mismatch caused by the center sill 5 can be reduced and the appearance can be improved.

The same effect can be obtained also in the case where the front side of the center sill is inclined downward, such as the configuration in which the upper lift cord 3U is suspended in front of the upper fabric 6U and the end of the upper lift cord 3U is attached to the center sill 5, or the configuration in which the lower fabric 6L is made of a honeycomb fabric, as in the above-described

deformed rows

1 and 2 or the combination of the

deformed rows

1 and 2 shown in fig. 4(a) and 4(b), respectively.

The present invention has been described above by way of examples of specific embodiments, but the present invention is not limited to the examples of the above embodiments, and various modifications can be made without departing from the technical spirit thereof. For example, the effect of improving the appearance based on the line of sight from the obliquely upper direction shown in fig. 6 and 7 is an effect that acts separately from the color tone and the cord arrangement in the relationship between the upper cord 6U and the lower cord 6L and the upper lifting cord 3U and the lower lifting cord 3L shown in fig. 3 (a). Therefore, by configuring the pleated curtain to have the inclination switching at the lowest position and the highest position of the center sill 5 as shown in fig. 6 and 7, the effect of improving the appearance based on the line of sight from obliquely above can be obtained.

(availability in industry)

According to the present invention, the blind including the upper curtain and the lower curtain can be improved in aesthetic appearance, and therefore, the present invention is useful for application to blind.

Claims

1. A pleated curtain comprising an upper curtain fabric suspended from an upper beam to support a center beam and a lower curtain fabric suspended from the center beam to support a lower beam, wherein the center beam is raised or lowered by a plurality of first raising/lowering cords and the lower beam is raised or lowered by a plurality of second raising/lowering cords, the pleated curtain being characterized in that,

at least one of the first plurality of lift cords is disposed to be visible from one side of the upper curtain and at least one of the second plurality of lift cords is disposed to be invisible from the other side of the upper curtain;

each of the plurality of first lift cords is attached to the center sill after being disposed in front of the upper fabric from the upper beam or suspended by being inserted into a first lift cord hole provided in the upper fabric;

each of the second lifting ropes is hung from the upper beam on the back surface of the upper curtain cloth, then penetrates through the middle beam or bypasses behind the middle beam, and is inserted into a second lifting rope hole formed in the lower curtain cloth;

the pleated curtain is composed of: the front side of the center sill is inclined downward when the center sill is at the lowest position, and the inclination is reduced when the center sill is at the highest position.

2. The pleated cover of claim 1,

the upper curtain cloth is made of fabric which can be bent into く characters,

the lower curtain cloth is made of a fabric which can be bent into an く shape or a honeycomb-shaped fabric.

3. The pleated curtain of claim 1,

the upper curtain cloth and the lower curtain cloth have different fabric colors with different hues,

the first lifting rope has a rope color with the same hue as the fabric color of the upper curtain cloth.

4. Pleated shade as in claim 3,

each of the second lifting ropes has a rope color having the same hue as the fabric color of the lower curtain cloth.

5. The pleated curtain of claim 1,

the center sill is bent and penetrated from the rear to the front by each of the second lift cords.

6. The pleated cover of claim 5,

the fixing position of the lower end of each of the first lifting ropes with respect to the center sill is arranged in front of the hanging position of the second lifting rope in the lower curtain.

7. Pleated curtain as in any one of claims 1, 5 or 6,

the front side of the center sill is inclined downward when the center sill is at the lowest position by the action of a space maintaining rope for maintaining the space of the upper curtain cloth.