JP2021130990A - blind - Google Patents

Abstract

To provide a blind with a wide variety of dimming patterns.SOLUTION: A blind 10 includes a first blind body 1 with a first screen 1Sp and a second screen 2Sp connected vertically, a second blind body 2 with a third screen 3Sp and a fourth screen 4Sp connected vertically, and a head rail Rh that suspends the first blind body 1 and the second blind body 2 in the front-back direction. At least one of the first screen 1Sp and the second screen 2Sp, and the third screen 3Sp are formed with a transmission part and a non-transmission part on their screen surfaces. Overlapping the first screen 1Sp through the fourth screen 4Sp in the front-back direction and shifting the first blind body 1 and the second blind body 2 in the left-right direction will realize multiple dimming patterns.SELECTED DRAWING: Figure 1

Description

The present invention relates to blinds. In particular, the present invention relates to a blind structure in which two screens having a vertically striped pattern in which translucent portions and light-shielding portions are alternately arranged are arranged in the front-rear direction.

For example, blinds with pleated screens or roll screens are installed in glass windows and the like. In general, the blind can transmit light into the room or block light from the outside by moving up and down a single screen having a predetermined light transmittance.

However, with conventional blinds, by adjusting the elevating position of the screen, direct light can be transmitted from the glass window into the room below the screen, and light can be transmitted from the screen surface according to the transmittance. However, it was difficult to adjust the amount of light transmitted into the room as a whole.

Since the conventional blind has the above-mentioned problems, two roll screens having a vertical stripe pattern in which light-transmitting parts and light-shielding parts are alternately arranged are arranged in the front-rear direction, and one roll screen is used with respect to one roll screen. A blind is disclosed in which the amount of light projected into the room can be adjusted with respect to the entire surface of the glass window by moving the other roll screen in the left-right direction (see, for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 2013-530327

The blind according to Patent Document 1 includes a first screen and a second screen, a first take-up bar, and a second take-up bar. Further, the blind according to Patent Document 1 includes a first rotating shaft, a second rotating shaft, and a slide drive mechanism.

The first screen and the second screen form a vertical striped pattern in which translucent portions and light-shielding portions are alternately arranged. The first take-up rod and the second take-up rod can take up the first screen and the second screen, respectively. A first take-up rod and a second take-up rod are connected to the first rotation shaft and the second rotation shaft, respectively. The slide drive mechanism can slide the first take-up rod in the length direction of the first rotation shaft.

According to Patent Document 1, in the first screen and the second screen, light-shielding portions and translucent portions are alternately arranged so as to form stripes in the vertical direction of the first take-up rod and the second take-up rod. .. Further, the first screen and the second screen are superimposed on each other to form one virtual screen. The double first screen and the second screen can be raised or lowered at the same time to open and close, and the overlapping range of the light-shielding portions included in the first screen and the second screen can be adjusted to adjust the amount of light-shielding.

That is, in the blind according to Patent Document 1, when the translucent portion of the first screen and the translucent portion of the second screen are superimposed on each other, the light passes through the screen and the first take-up rod moves in parallel. If the translucent portion of the first screen and the light-shielding portion of the second screen overlap, the light cannot pass through the screen.

However, the blind according to Patent Document 1 has a problem that there are few variations in dimming because the amount of light projected is adjusted only by adjusting the amount of overlap of the two types of screens composed of the first screen and the second screen. rice field.

There is a demand for blinds in which two screens that can be raised and lowered are arranged in the front-rear direction and that have a wide variety of dimming patterns. The above can be said to be the subject of the present invention.

The present invention has been made in view of such a problem, and an object of the present invention is to provide a blind in which two vertically movable screens are arranged in the front-rear direction and a wide variety of dimming patterns are provided. do.

The present inventor constitutes a blind with a first blind body in which a first shielding material and a second shielding material are vertically connected and a second blind body having at least a third shielding material, and the first blind body and the second blind The body is suspended from the support member in the front-rear direction, and at least one of the first shielding material and the second shielding material and the third shielding material are formed with a transparent portion and a non-transmissive portion on the surface of the shielding material. As a result, we thought that we could have a wide variety of dimming patterns, and based on this, we invented the following new blinds.

(1) The blind according to the present invention includes a first blind body in which a first shielding material and a second shielding material are vertically connected, a second blind body having at least a third shielding material, and the first blind body and the first blind body thereof. 2 A support member for suspending the blind body in the front-rear direction is provided, and at least one of the first shielding material and the second shielding material and the third shielding material are provided on the surface of the shielding material. It forms a transparent part and a non-transparent part.

(2) The transmissive portion and the non-transmissive portion form vertical stripes alternately and continuously in the left-right direction, and at least one of the first blind body and the second blind body is formed. It is preferable that the support member can be moved in the longitudinal direction.

(3) The second blind body may further include a fourth shielding material connected to the third shielding material in the vertical direction.

(4) In the fourth shielding material, the transparent portion and the non-transparent portion may be formed alternately and continuously in a vertical stripe shape.

(5) It is preferable that the transparent portion of the first shielding material and the non-transmissive portion of the second shielding material are formed at overlapping positions in the longitudinal direction of the support member.

The blind according to the present invention includes a first blind body in which a first shielding material and a second shielding material are vertically connected, and a second blind body having at least a third shielding material, and uses at least three types of shielding materials. However, abundant dimming patterns can be realized by combining two or more types of shielding materials.

It is a figure which shows the whole structure of the blind by 1st Embodiment of this invention, and is the state diagram which arranged the 1st blind body shifted with respect to the 2nd blind body. It is a right side view which shows the whole structure of the blind by 1st Embodiment. It is a vertical cross-sectional view which shows the whole structure of the blind by 1st Embodiment, and is the cross-sectional view taken along the arrow AA of FIG. It is a front view which shows the structure of the 1st blind body according to 1st Embodiment, and FIG. 4 (B) is a state diagram in which the first shielding material is unfolded and the second shielding material is folded, and FIG. 4 (C) is a state diagram in which the first shielding material is folded and the second shielding material is unfolded. It is a front view which shows the structure of the 2nd blind body by 1st Embodiment, and FIG. 5 (B) is a state diagram in which the third shielding material is unfolded and the fourth shielding material is folded, and FIG. 5 (C) is a state diagram in which the third shielding material is folded and the fourth shielding material is unfolded. It is a front view and the right side view which show the structure of the dimming pattern of the blind by 1st Embodiment, and FIG. FIG. 6 (B) is a state diagram in which the shielding material is folded, and FIG. 6 (C) is a state diagram in which the first blind body is displaced from the state shown in FIG. 6 (A) with respect to the second blind body. , The first shielding material and the fourth shielding material are unfolded, and the second shielding material and the third shielding material are folded. FIG. 6 (D) shows the second blind body from the state shown in FIG. 6 (C). It is a state diagram which arranged the 1st blind body in a staggered manner with respect to. It is a front view and the right side view which show the structure of the dimming pattern of the blind by 1st Embodiment, and FIG. 7A shows the 2nd shielding material and the 3rd shielding material, and the 1st shielding material and the 4th FIG. 7 (B) is a state diagram in which the shielding material is folded, and FIG. 7 (C) is a state diagram in which the first blind body is displaced from the state shown in FIG. 7 (A) with respect to the second blind body. , The second shielding material and the fourth shielding material are unfolded, and the first shielding material and the third shielding material are folded. FIG. 7 (D) shows the second blind body from the state shown in FIG. 7 (C). It is a state diagram which arranged the 1st blind body in a staggered manner with respect to. It is a front view which shows the structure of the blind by 2nd Embodiment of this invention, and FIG. 8 (B) is a state diagram in which the first shielding material is developed from the state shown in FIG. 8 (A) and the second shielding material is folded, and FIG. 8 (C) is a state shown in FIG. 8 (B). FIG. 8 (D) is a state diagram in which the first shielding material is folded and the second shielding material is unfolded, and FIG. 8 (D) is a state diagram in which the third shielding material of the second blind body composed of only the third shielding material is unfolded. It is a front view and the right side view which show the structure of the dimming pattern of the blind by 2nd Embodiment, and FIG. 9A shows the 1st shielding material and the 3rd shielding material developed, and the 2nd shielding material folded. A state diagram, FIG. 9 (B) is a state diagram in which the first blind body is displaced from the state shown in FIG. 9 (A) with respect to the second blind body, and FIG. 9 (C) is a first shielding material. 9 (D) shows a state diagram in which the second shielding material and the third shielding material are unfolded, and the first blind body is displaced from the state shown in FIG. 9 (C) with respect to the second blind body. It is a state diagram. It is a right-side view which shows the structure of the blind by the 3rd Embodiment of this invention, and FIG. A state diagram in which a second blind body composed of a material and a fourth shielding material formed of a roll screen is arranged so as to face each other, FIG. It is a state diagram changed to the state to be arranged. It is a figure which shows the structure of the blind by 4th Embodiment of this invention, and FIG. 11A is a development view of the 1st shielding material which displayed the design of a plurality of petals on the surface of the 1st shielding material, FIG. B) is a development view of the second shielding material in which the designs of a plurality of leaves are displayed on the surface of the second shielding material, and FIG. 11 (C) shows the designs of the plurality of trees displayed on the surface of the third shielding material. 3 A development view of the shielding material, FIG. 11D, is a development view of the fourth shielding material in which a design in which the background of a plurality of petals is formed by a non-transmissive portion is displayed on the surface of the fourth shielding material. It is a front view of the shielding material which shows the structure of the dimming pattern of the blind by 4th Embodiment, and FIG. A state view in which the developed view of FIG. 11 (C) is superimposed, FIG. 12 (B) is a developed view of FIG. 11 (B) displayed on the second shielding material and FIG. 11 (C) displayed on the third shielding material. ), Which is a state diagram in which the developed view of FIG. 12 (C) is superimposed, shows the developed view of FIG. 11 (A) displayed on the first shielding material and the developed view of FIG. 12 (D) is a state diagram in which the developed view of FIG. 11 (B) displayed on the second shielding material and the developed view of FIG. 11 (D) displayed on the fourth shielding material are superimposed. (E) is a state diagram in which the first shielding material is shifted with respect to the fourth shielding material from the state shown in FIG. 12 (C).

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

[First Embodiment]
(Blind composition)
First, the overall configuration of the blind according to the first embodiment of the present invention will be described.

(overall structure)
Referring to FIGS. 1 to 3, the blind 10 according to the first embodiment of the present invention includes a first blind body 1, a second blind body 2, and a head rail Rh as a support member. The head rail Rh can be attached to the upper part of the window frame or the ceiling surface.

Referring to FIGS. 1 to 3, the head rail Rh suspends the first blind body 1 via a plurality of brackets Br with runners Rn and a head box Bh. Further, the head rail Rh suspends the second blind body 2 via a plurality of brackets Br with runners Rn and a head box Bh.

Referring to FIGS. 1 to 3, the first blind body 1 and the second blind body 2 are arranged in the front-rear direction of the head rail Rh. Further, the first blind body 1 and the second blind body 2 can move in the left-right direction independently of each other along the longitudinal direction of the head rail Rh.

In addition, referring to FIGS. 1 to 3, the longitudinal direction of the head rail Rh is the direction in which the head rail Rh extends. In addition, hereinafter, the direction orthogonal to the longitudinal direction and the horizontal direction is the front-rear direction, the side that becomes the indoor Ri side (see FIG. 2 or FIG. 3) when the blind is installed in front of the window in the room is the front side, and the outdoor side that becomes the window side. The Ro side (see FIG. 2 or 3) will be described as the rear side. In the embodiment, the first blind body 1 is arranged on the front side and the second blind body 2 is arranged on the rear side (see FIG. 2 or FIG. 3).

Referring to FIGS. 1 to 3, the first blind body 1 connects the first screen 1Sp, which is the first shielding material, and the second screen 2Sp, which is the second shielding material, vertically. The second blind body 2 connects the third screen 3Sp, which is the third shielding material, and the fourth screen 4Sp, which is the fourth shielding material, vertically. The first screen 1Sp, the second screen 2Sp, the third screen 3Sp, and the fourth screen 4Sp are each composed of a stretchable and foldable pleated screen.

With reference to FIG. 4A or FIG. 4B, the first screen 1Sp forms a pattern of vertical stripes in which the transparent portion Lt and the non-transparent portion Lb are alternately continuous in the left-right direction. Similarly, referring to FIG. 4A or FIG. 4C, in the second screen 2Sp, the transparent portion Lt and the non-transparent portion Lb form a pattern of vertical stripes alternately continuous in the left-right direction.

With reference to FIG. 5A or FIG. 5B, the third screen 3Sp forms a pattern of vertical stripes in which the transparent portion Lt and the non-transparent portion Lb are alternately continuous in the left-right direction. Similarly, referring to FIG. 5A or FIG. 5C, in the fourth screen 4Sp, the transparent portion Lt and the non-transparent portion Lb form a pattern of vertical stripes alternately continuous in the left-right direction.

With reference to FIG. 4 or 5, the transmitting portion Lt defines a portion through which light is transmitted, and the non-transmitting portion Lb defines a portion through which light is blocked, but the transmitting portion Lt omits light. It does not mean that it transmits 100%, and does not mean that the non-transmissive portion Lb blocks light substantially 100%. The transparent portion Lt and the non-transparent portion Lb are used in a relative sense. For example, the light transmitting amount of the transmitting portion Lt may be 80%, and the light transmitting amount of the non-transmitting portion Lb may be 20%. The non-transmissive portion Lb refers to a portion where the amount of light projected is relatively small with respect to the transmissive portion Lt. It is defined as part Lb.

With reference to FIGS. 1 to 7, the blind 10 can realize a combination of a plurality of screens by unfolding or folding the first screen 1Sp to the fourth screen 4Sp, and can have a wide variety of dimming patterns.

(Structure of the first blind body)
Next, the configuration of the first blind body 1 will be described. Referring to FIGS. 1 to 3, the first blind body 1 includes a head box Bh and a plurality of brackets Br. The head box Bh is formed in a box shape having a cavity inside. The plurality of brackets Br support the head box Bh.

Referring to FIGS. 1 to 3, the bracket Br has a runner Rn attached to its upper surface. The runner Rn is slidably connected to the head rail Rh. Further, the runner Rn suspends the first blind body 1. The blind 10 can move the first blind body 1 in the left-right direction with respect to the head rail Rh.

Referring to FIGS. 1 to 3, the first screen 1Sp has its upper end connected to the bottom of the headbox Bh. Further, the first screen 1Sp has an intermediate bar Bm attached to the lower end thereof. The upper end of the second screen 2Sp is connected to the bottom of the intermediate bar Bm. Further, the bottom rail Bw is attached to the lower end of the second screen 2Sp.

Further, referring to FIGS. 1 to 3, the first blind body 1 includes a plurality of dimming cords 91c and a plurality of elevating cords 92c. The dimming code 91c inserts the first screen 1Sp. One end of the dimming cord 91c is wound around the first take-up drum 91d (see FIG. 1 or 3). The other end of the dimming cord 91c is moored to the intermediate bar Bm.

Referring to FIGS. 1 to 3, the elevating cord 92c inserts the first screen 1Sp, the intermediate bar Bm, and the second screen 2Sp. One end of the elevating cord 92c is wound around the second take-up drum 92d (see FIG. 1 or 3). The other end of the elevating cord 92c is moored to the bottom rail Bw. The first take-up drum 91d is arranged inside the head box Bh in front of the second take-up drum 92d.

With reference to FIGS. 1 to 3, the second screen 2Sp was developed by winding the dimming cord 91c by the first winding drum 91d in a state where the second winding drum 92d unwound the elevating cord 92c. The first screen 1Sp can be folded in the state (see FIG. 4C). Further, the first take-up drum 91d unwinds the dimming cord 91c while the second take-up drum 92d unwinds the elevating cord 92c, so that the second screen 2Sp is folded downward and the first screen 1Sp is folded. Can be expanded (see FIG. 4 (B)).

(Structure of the second blind body)
Next, the configuration of the second blind body 2 will be described. Referring to FIG. 2 or FIG. 3, the second blind body 2 includes a head box Bh and a plurality of brackets Br. The head box Bh is formed in a box shape having a cavity inside. The plurality of brackets Br support the head box Bh.

Referring to FIG. 2 or FIG. 3, the bracket Br has a runner Rn attached to its upper surface. The runner Rn is slidably connected to the head rail Rh. Further, the runner Rn suspends the second blind body 2. The blind 10 can move the second blind body 2 in the left-right direction with respect to the head rail Rh.

Referring to FIG. 2 or FIG. 3, the third screen 3Sp has its upper end connected to the bottom of the headbox Bh. Further, the third screen 3Sp has an intermediate bar Bm attached to the lower end thereof. The upper end of the fourth screen 4Sp is connected to the bottom of the intermediate bar Bm. Further, the bottom rail Bw is attached to the lower end of the fourth screen 4Sp.

Further, referring to FIG. 2 or FIG. 3, the second blind body 2 includes a plurality of dimming cords 91c and a plurality of elevating cords 92c. The dimming code 91c inserts the third screen 3Sp. One end of the dimming cord 91c is wound around the first take-up drum 91d (see FIG. 3). The other end of the dimming cord 91c is moored to the intermediate bar Bm.

With reference to FIG. 2 or 3, the elevating cord 92c inserts a third screen 3Sp, an intermediate bar Bm, and a fourth screen 4Sp. One end of the elevating cord 92c is wound around the second take-up drum 92d (see FIG. 3). The other end of the elevating cord 92c is moored to the bottom rail Bw. The second take-up drum 92d is arranged inside the head box Bh behind the first take-up drum 91d.

With reference to FIG. 2 or 3, the fourth screen 4Sp was developed by winding the dimming cord 91c by the first winding drum 91d in a state where the second winding drum 92d unwound the elevating cord 92c. The third screen 3Sp can be folded in this state (see FIG. 5C). Further, the second take-up drum 92d unwinds the elevating cord 92c, and the first take-up drum 91d unwinds the dimming cord 91c, so that the fourth screen 4Sp is folded downward and the third screen 3Sp is folded. Can be expanded (see FIG. 5 (B)).

(Headbox configuration)
Next, the configuration of the head box Bh will be described. Since one headbox Bh in which the first blind body 1 is suspended and the other headbox Bh in which the second blind body 2 is suspended have the same configuration, they represent one headbox Bh. May be explained.

Referring to FIG. 1, the headbox Bh includes a control unit Uc, a first drive shaft 91s, and a second drive shaft 92s inside. The head box Bh includes a brake Bk, a stopper St, and a down limit Ld inside. The head box Bh includes a pulley 9p and a first ball chain 1Cb serving as a first operating member at one end.

Referring to FIGS. 1 to 3, the first drive shaft 91s and the second drive shaft 92s are arranged over substantially the entire length of the head box Bh in the longitudinal direction. The first drive shaft 91s is arranged in front of the head box Bh, and the second drive shaft 92s is arranged in parallel behind the head box Bh. Further, the first drive shaft 91s can insert the central portion of the pair of first take-up drums 91d and 91d and transmit the rotation of the first drive shaft 91s to the pair of first take-up drums 91d and 91d. The second drive shaft 92s can insert the central portion of the pair of second take-up drums 92d / 92d and transmit the rotation of the second drive shaft 92s to the pair of second take-up drums 92d / 92d.

Referring to FIG. 1, in the head box Bh, a stopper St that restrains the rotation of the first drive shaft 91s is installed between the pair of first winding drums 91d and 91d. A similar stopper St is also provided on the second drive shaft 92s. Further, in the head box Bh, a brake Bk for reducing the rotational speed of the first drive shaft 91s is arranged adjacent to the stopper St. A similar brake Bk is also provided on the second drive shaft 92s.

Further, referring to FIG. 1, the head box Bh has a down limit Ld at the other end, which can determine the lower limit position of the bottom rail Bw by regulating the unwinding amount of the elevating cord 92c.

Referring to FIG. 1, the control unit Uc internally arranges a gear train and a clutch device (not shown). The control unit Uc can switch the power transmitted from the pulley 9p to the first drive shaft 91s or the second drive shaft 92s. The gear train includes an input shaft (not shown) whose rotation is transmitted from the pulley 9p. The clutch device includes a clutch disk that can rotate integrally with the input shaft and is slidable in the axial direction of the input shaft depending on the rotation direction of the input shaft. Further, the clutch device includes a set of clutch receiving disks that are connected or separated from each other in the surface direction of the clutch disks.

(Structure of the first operating member)
Referring to FIG. 1 or FIG. 2, the first ball chain 1Cb, which is the first operating member, has an endless shape. The first ball chain 1Cb is wound around the pulley 9p. By pulling down the back side of the first ball chain 1Cb hanging from the pulley 9p, the raising and lowering of the intermediate bar Bm can be operated. By pulling down the front side of the first ball chain 1Cb hanging from the pulley 9p, the bottom rail Bw can be raised and lowered.

(Configuration of control unit)
With reference to FIG. 1, the pulley 9p is rotatably connected to an input shaft (not shown) via a gear train arranged inside the control unit Uc. By rotating the pulley 9p, the rotation of the pulley 9p can be transmitted to the input shaft. A clutch disk is arranged at the center of the input shaft in the axial direction. Further, a set of clutch receiving disks are arranged on the input shaft so as to sandwich the clutch disks. The input shaft is connected to the clutch disk so as not to rotate relative to each other. Further, the input shaft is connected to a set of clutch receiving disks so as to be relatively rotatable.

By engaging the one clutch receiving disk with one surface of the clutch disk, the rotation of the input shaft can be transmitted to the one clutch receiving disk. The end of the second drive shaft 92s is inserted into the center of one of the clutch receiving disks (see FIG. 2 or 3). By engaging one clutch receiving disk with one surface of the clutch disk, the rotation of the pulley 9p can be transmitted to the second drive shaft 92s.
The other clutch receiving disk can transmit the rotation of the input shaft to the other clutch receiving disk by engaging with the other surface of the clutch disk. The other clutch receiving disk has gears formed on the outer circumference. Further, a gear with an output shaft capable of meshing with a gear formed on the outer circumference is connected to the other clutch receiving disk. The output shaft of the gear with the output shaft has an end portion of the first drive shaft 91s inserted at the center thereof (see FIGS. 2 or 3).

One clutch receiving disk and one surface of the clutch disk are engaged when the clutch disk rotates in the rotation direction of the input shaft when the pulley 9p is rotated in one direction, and the input shaft is reversed. It is meshed with ratchet teeth shaped to be disengaged when rotated in the direction. As a result, the rotation of the pulley 9p in one direction can be transmitted to the second drive shaft 92s.
Further, the other clutch receiving disk and the other surface of the clutch disk are engaged when the clutch disk rotates in the rotation direction of the input shaft when the pulley 9p is rotated in the other direction, and the input shaft is engaged. Are engaged by ratchet teeth shaped to be disengaged when they rotate in the opposite direction. As a result, the rotation of the pulley 9p in the other direction can be transmitted to the first drive shaft 91s.

(Operation of the first blind body)
Referring to FIG. 1, since the control unit Uc has the above mechanism inside, the pulley 9p is rotated in the other direction by pulling down the inner side of the first ball chain 1Cb (see FIG. 2). The first drive shaft 91s can be rotated in the other direction by engaging the clutch disk and the other clutch receiving disk and further engaging the other clutch receiving disk with the gear with the output shaft. As a result, the first take-up drum 91d can take up the dimming cord 91c, and the first screen 1Sp can be folded (see FIG. 4C).

On the other hand, referring to FIGS. 1 to 3, when the operation of the first ball chain 1Cb is stopped and the rotation of the pulley 9p in the other direction is stopped, the stopper St causes the dimming code 91c of the first drive shaft 91s to be stopped. Rotation in the unwinding direction is restricted. To allow the dimming cord 91c to rotate in the unwinding direction, pull the back side of the first ball chain 1Cb slightly downward to slightly rotate the first drive shaft 91s in the winding direction of the dimming cord 91c. , Release the stopper St. As a result, in a state where the first drive shaft 91s rotates in the other direction, the dimming cord 91c is unwound from the first take-up drum 91d, and the bottom rail Bw is lowered downward, the weight of the intermediate bar Bm causes the first One screen and one sp can be developed (see FIG. 4 (B)).

By pulling down the front side of the first ball chain 1Cb (see FIG. 2) with reference to FIGS. 1 to 3, the pulley 9p can be rotated in one direction, and the clutch disk and one clutch receiving disk are engaged. By matching, the second drive shaft 92s can be rotated in one direction. As a result, the second take-up drum 92d can take up the elevating cord 92c, and the second screen 2Sp can be folded upward.

On the other hand, referring to FIGS. 1 to 3, when the operation of the first ball chain 1Cb is stopped and the rotation of the pulley 9p in one direction is stopped, the stopper St winds the elevating cord 92c of the second drive shaft 92s. Rotation in the unraveling direction is regulated. To allow the lifting cord 92c to rotate in the unwinding direction, pull the front side of the first ball chain 1Cb slightly downward to slightly rotate the second drive shaft 92s in the winding direction of the lifting cord 92c, and stop the stopper. Release St. As a result, the second drive shaft 92s rotates in the other direction, the elevating cord 92c is unwound from the second take-up drum 92d, and in a state where the intermediate bar Bm is raised, the weight of the bottom rail Bw causes the second screen 2Sp. Can be expanded (see FIG. 4 (C)).

(Operation of the second blind body)
Next, the operation of the second blind body 2 will be described. Referring to FIGS. 1 to 3, the second blind body 2 has the same mechanism as the first blind body 1. The first ball chain 1Cb and the second ball chain 2Cb are the same, but are distinguished by changing the reference numerals for convenience of explanation.

By pulling down the inner side of the second ball chain 2Cb (see FIG. 2) with reference to FIGS. 1 to 3, the pulley 9p can be rotated in the other direction, and the clutch disk and the other clutch receiving disk are engaged. The first drive shaft 91s can be rotated in one direction by engaging the other clutch receiving disk with the gear with the output shaft. As a result, the first take-up drum 91d can take up the dimming cord 91c, and the third screen 3Sp can be folded (see FIG. 5C).

On the other hand, referring to FIGS. 1 to 3, when the operation of the second ball chain 2Cb is stopped and the rotation of the pulley 9p in the other direction is stopped, the stopper St causes the dimming code 91c of the first drive shaft 91s to be stopped. Rotation in the unwinding direction is restricted. To allow the dimming cord 91c to rotate in the unwinding direction, pull the back side of the first ball chain 1Cb slightly downward to slightly rotate the first drive shaft 91s in the winding direction of the dimming cord 91c. , Release the stopper St. As a result, the first drive shaft 91s rotates in the other direction, the dimming cord 91c is unwound from the first take-up drum 91d, and when the bottom rail Bw is lowered, the weight of the intermediate bar Bm causes the third screen. 3 Sp can be expanded (see FIG. 5 (B)).

By pulling down the front side of the second ball chain 2Cb (see FIG. 2) with reference to FIGS. 1 to 3, the pulley 9p can be rotated in one direction, and the clutch disk and one clutch receiving disk are engaged. By matching, the second drive shaft 92s can be rotated in one direction. As a result, the second take-up drum 92d can take up the elevating cord 92c, and the fourth screen 4Sp can be folded.

On the other hand, referring to FIGS. 1 to 3, when the operation of the second ball chain 2Cb is stopped and the rotation of the pulley 9p in one direction is stopped, the stopper St winds the elevating cord 92c of the second drive shaft 92s. Rotation in the unraveling direction is regulated. To allow the lifting cord 92c to rotate in the unwinding direction, pull the front side of the second ball chain 2Cb slightly downward to slightly rotate the second drive shaft 92s in the winding direction of the lifting cord 92c, and stop the stopper. Release St. As a result, the second drive shaft 92s rotates in the other direction, the elevating cord 92c is unwound from the second take-up drum 92d, and in a state where the intermediate bar Bm is raised, the weight of the bottom rail Bw causes the fourth screen 4Sp. Can be expanded (see FIG. 5 (C)).

Referring to FIGS. 1 to 3, the blind 10 according to the embodiment can expand or fold the first screen 1Sp to the fourth screen 4Sp by operating the first ball chain 1Cb and the second ball chain 2Cb. Then, a plurality of dimming patterns can be realized by combining the unfolded state or the folded state of the first screen 1Sp to the fourth screen 4Sp. Further, by changing the relative positions of the first blind body 1 and the second blind body 2 in the left-right direction, a plurality of dimming patterns can be further realized.

(Structure of the first dimming variation)
Next, the configuration of the first dimming variation of the blind 10 according to the first embodiment will be described. Referring to FIG. 6A, the first screen 1Sp of the first blind body 1 is unfolded, and the second screen 2Sp of the first blind body 1 is folded. Further, the third screen 3Sp of the second blind body 2 is unfolded, and the fourth screen 4Sp of the second blind body 2 is folded. Further, the first blind body 1 and the second blind body 2 are arranged in a substantially coincident state in the left-right direction.

In the state shown in FIG. 6A, the transparent portion Lt of the first screen 1Sp (see FIG. 4B) and the non-transparent portion Lb of the third screen 3Sp (see FIG. 5B) overlap. It constitutes the dimming pattern of 1. Further, referring to FIG. 4A or FIG. 5A, the width of the non-transparent portion Lb of the third screen 3Sp is wider than the width of the transparent portion Lt of the first screen 1Sp. As a result, in the first dimming pattern shown in FIG. 6 (A), the outside light can be shielded and the indoor Ri side can be relatively darkened.

Referring to FIG. 6 (B), the first blind body 1 is moved to the left with respect to the second blind body 2 from the state shown in FIG. 6 (A). In the state shown in FIG. 6 (B), the transparent portion Lt of the first screen 1 Sp (see FIG. 4 (B)) and the transparent portion Lt of the third screen 3 Sp (see FIG. 5 (B)) overlap. It constitutes the dimming pattern of. In the second dimming pattern shown in FIG. 6B, external light can be taken in from the transmissive portions Lt overlapping in the front and rear, and the indoor Ri side can be relatively brightened.

Referring to FIG. 6C, the first screen 1Sp of the first blind body 1 is unfolded, and the second screen 2Sp of the first blind body 1 is folded. Further, the third screen 3Sp of the second blind body 2 is folded, and the fourth screen 4Sp of the second blind body 2 is unfolded. Further, the first blind body 1 and the second blind body 2 are arranged in a substantially coincident state in the left-right direction.

In the state shown in FIG. 6C, the transparent portion Lt of the first screen 1Sp (see FIG. 4B) and the transmissive portion Lt of the fourth screen 4Sp (see FIG. 5C) overlap each other. It constitutes the dimming pattern of. In the third dimming pattern shown in FIG. 6C, external light can be taken in from the transmissive portions Lt overlapping in the front and rear, and the indoor Ri side can be relatively brightened.

Referring to FIG. 6 (D), the first blind body 1 is moved to the left with respect to the second blind body 2 from the state shown in FIG. 6 (C). In the state shown in FIG. 6D, the transparent portion Lt of the first screen 1Sp (see FIG. 4B) and the non-transparent portion Lb of the fourth screen 4Sp (see FIG. 5C) overlap each other. It constitutes 4 dimming patterns. Further, referring to FIG. 4A or FIG. 5A, the width of the non-transparent portion Lb of the fourth screen 4Sp is wider than the width of the transparent portion Lt of the first screen 1Sp. As a result, in the fourth dimming pattern shown in FIG. 6D, the outside light can be shielded and the indoor Ri side can be relatively darkened.

The non-transmissive portion Lb of the third screen 3Sp shown in FIG. 5 (B) has a reduced light transmittance with respect to the non-transmissive portion Lb of the fourth screen 4Sp shown in FIG. 5 (C). .. As a result, the indoor Ri side can be made darker in the fourth dimming pattern shown in FIG. 6 (D) as compared with the first dimming pattern (see FIG. 6 (A)).

(Structure of the second dimming variation)
Next, the configuration of the second dimming variation of the blind 10 according to the first embodiment will be described. Referring to FIG. 7A, the first screen 1Sp of the first blind body 1 is folded, and the second screen 2Sp of the first blind body 1 is unfolded. Further, the third screen 3Sp of the second blind body 2 is unfolded, and the fourth screen 4Sp of the second blind body 2 is folded. Further, the first blind body 1 and the second blind body 2 are arranged in a substantially coincident state in the left-right direction.

In the state shown in FIG. 7A, the transparent portion Lt of the second screen 2Sp (see FIG. 4C) and the transmissive portion Lt of the third screen 3Sp (see FIG. 5B) overlap each other. It constitutes the dimming pattern of. In the fifth dimming pattern shown in FIG. 7A, external light can be taken in from the transmissive portions Lt overlapping in the front and rear, and the indoor Ri side can be relatively brightened.

Referring to FIG. 7 (B), the first blind body 1 is moved to the left with respect to the second blind body 2 from the state shown in FIG. 7 (A). In the state shown in FIG. 7B, the transparent portion Lt of the second screen 2Sp (see FIG. 4C) and the non-transparent portion Lb of the third screen 3Sp (see FIG. 5B) overlap. It constitutes 6 dimming patterns. Further, referring to FIG. 4A or FIG. 5A, the width of the non-transparent portion Lb of the third screen 3Sp is wider than the width of the transparent portion Lt of the second screen 2Sp. As a result, in the sixth dimming pattern shown in FIG. 7B, the outside light can be shielded and the indoor Ri side can be relatively darkened.

Referring to FIG. 7C, the first screen 1Sp of the first blind body 1 is folded, and the second screen 2Sp of the first blind body 1 is unfolded. Further, the third screen 3Sp of the second blind body 2 is folded, and the fourth screen 4Sp of the second blind body 2 is unfolded. Further, the first blind body 1 and the second blind body 2 are arranged in a substantially coincident state in the left-right direction.

In the state shown in FIG. 7 (C), the transparent portion Lt of the second screen 2Sp (see FIG. 4 (C)) and the non-transparent portion Lb of the fourth screen 4Sp (see FIG. 5 (C)) overlap. It constitutes 7 dimming patterns. Further, referring to FIG. 4A or FIG. 5A, the width of the non-transparent portion Lb of the fourth screen 4Sp is wider than the width of the transparent portion Lt of the second screen 2Sp. As a result, in the seventh dimming pattern shown in FIG. 7C, the outside light can be shielded and the indoor Ri side can be relatively darkened.

The non-transmissive portion Lb of the third screen 3Sp shown in FIG. 5 (B) has a reduced light transmittance with respect to the non-transmissive portion Lb of the fourth screen 4Sp shown in FIG. 5 (C). .. As a result, the indoor Ri side can be made darker in the seventh dimming pattern shown in FIG. 7 (C) as compared with the sixth dimming pattern (see FIG. 7 (B)).

Referring to FIG. 7 (D), the first blind body 1 is moved to the left with respect to the second blind body 2 from the state shown in FIG. 7 (C). In the state shown in FIG. 7 (D), the transparent portion Lt of the second screen 2Sp (see FIG. 4 (C)) and the transparent portion Lt of the fourth screen 4Sp (see FIG. 5 (C)) overlap, the eighth It constitutes the dimming pattern of. In the eighth dimming pattern shown in FIG. 6D, external light can be taken in from the transmissive portions Lt overlapping in the front and rear, and the indoor Ri side can be relatively brightened.

(Blind action)
Next, the action and effect of the blind 10 according to the first embodiment will be described. Referring to FIGS. 1 to 7, the blind 10 includes a first blind body 1 in which a first screen 1 Sp and a second screen 2 Sp are vertically connected, a second blind body 2 having at least a third screen 3 Sp, and these. A head rail Rh in which the first blind body 1 and the second blind body 2 are suspended in the front-rear direction is provided, and at least one screen and the third screen 3Sp of the first screen 1Sp and the second screen 2Sp are provided. A transparent portion Lt and a non-transmissive portion Lb are formed on the surface of the screen.

Referring to FIGS. 1 to 7, the blind 10 utilizes at least three types of screens, and a plurality of dimming patterns can be realized by combining two or more types of screens.

Referring to FIGS. 4 to 7, the transmissive portion Lt and the non-transmissive portion Lb form vertical stripes and are alternately and continuously formed in the left-right direction, and at least one of the first blind body 1 and the second blind body 2 is formed. One blind body can move longitudinally along the headrail Rh.

Referring to FIGS. 1 to 7, in the blind 10, a screen in which the transparent portion Lt and the non-transmissive portion Lb are vertically striped is combined in the front-rear direction, and one of the screens can be moved in the longitudinal direction of the head rail Rh. The dimming pattern can be further increased.

Referring to FIGS. 1 to 7, the second blind body 2 further includes a fourth screen 4Sp connected to the third screen 3Sp in the vertical direction. As a result, since the blind 10 uses a total of four types of screens with two types of front and rear blinds, the dimming pattern can be further increased.

Referring to FIGS. 4 to 7, the fourth screen 4Sp forms the transparent portion Lt and the non-transparent portion Lb alternately and continuously in a vertical stripe pattern. As a result, the blind 10 can further increase the dimming pattern by moving the developed fourth screen 4Sp in the longitudinal direction.

Referring to FIGS. 4 to 7, the transmissive portion Lt of the first screen 1Sp and the non-transmissive portion Lb of the second screen 2Sp are formed at overlapping positions in the longitudinal direction of the head rail Rh. As a result, the blind 10 is combined with the second blind body 2 (overlapping back and forth) by switching the unfolded side of the first screen 1Sp and the second screen 2Sp constituting the first blind body 1. It is possible to switch between a light-shielded state and a transparent state.

[Second Embodiment]
(Blind composition)
Next, the configuration of the blind according to the second embodiment of the present invention will be described. In addition, since the components having the same reference numerals as those given in the first embodiment have the same actions, the description thereof may be omitted below.

With reference to FIG. 8 or 9, the blind 20 according to the second embodiment of the present invention includes a first blind body 1B and a second blind body 2B. The head rail Rh suspends the first blind body 1B via a plurality of brackets Br with runners Rn and a head box Bh (see FIG. 9). Further, the head rail Rh suspends the second blind body 2B via a plurality of brackets Br with runners Rn and a head box Bh (see FIG. 9).

Referring to FIG. 9, the first blind body 1B and the second blind body 2B are arranged in the front-rear direction of the head rail Rh. Further, the first blind body 1B and the second blind body 2B can move in the left-right direction independently of each other along the longitudinal direction of the head rail Rh.

With reference to FIG. 8 or 9, the first blind body 1B connects the first screen 21Sp, which is the first shielding material, and the second screen 22Sp, which is the second shielding material, vertically. The second blind body 2B is composed of only the third screen 23Sp, which is the third shielding material. The first screen 21Sp, the second screen 22Sp, and the third screen 23Sp are each composed of a stretchable and foldable pleated screen. Other configurations and operations are the same as those of the blind 10 according to the first embodiment.

With reference to FIG. 8A or FIG. 8B, the first screen 21Sp forms a pattern of vertical stripes in which the transparent portion Lt and the non-transparent portion Lb are alternately continuous in the left-right direction. Similarly, referring to FIG. 8C, in the second screen 22Sp, the transparent portion Lt and the non-transparent portion Lb form a pattern of vertical stripes alternately continuous in the left-right direction.

With reference to FIG. 8D, in the third screen 23Sp, the transparent portion Lt and the non-transparent portion Lb form a pattern of vertical stripes that are alternately continuous in the left-right direction.

Referring to FIG. 8, in the blind 20 according to the second embodiment of the present invention, the blind 10 according to the first embodiment constitutes the second blind body 2 with the third screen 3Sp and the fourth screen 4Sp. The difference is that the second blind body 2B is composed of only the third screen 23Sp (see FIG. 8D). Thereby, a dimming pattern different from the dimming pattern according to the first embodiment can be realized.

Further, referring to FIG. 8A, in the first blind body 1B of the blind 20, the first blind body 1 of the blind 10 has a non-transparent portion Lb of the first screen 1Sp and a non-transparent portion Lb of the second screen 2Sp. The difference is that the non-transparent portion Lb of the first screen 21Sp and the non-transparent portion Lb of the second screen 22Sp are arranged in the same row, whereas they are arranged so as to be shifted in the left-right direction (see FIG. 4 (A)). .. Thereby, a dimming pattern different from the dimming pattern according to the first embodiment can be realized.

(Structure of the third dimming variation)
Next, the configuration of the third dimming variation of the blind 20 according to the second embodiment will be described. Referring to FIG. 9A, the first screen 21Sp of the first blind body 1B is unfolded, and the second screen 22Sp of the first blind body 1B is folded. Further, the third screen 23Sp of the second blind body 2B is developed. Further, the first blind body 1B and the second blind body 2B are arranged in a substantially coincident state in the left-right direction.

In the state shown in FIG. 9A, the transparent portion Lt of the first screen 21Sp (see FIG. 8B) and the non-transparent portion Lb of the third screen 3Sp (see FIG. 8D) overlap. It constitutes 9 dimming patterns. In the ninth dimming pattern shown in FIG. 9A, the indoor Ri side can be relatively darkened by blocking the outside light.

Referring to FIG. 9B, the first blind body 1B is moved to the left with respect to the second blind body 2B from the state shown in FIG. 9A. In the state shown in FIG. 9B, the transparent portion Lt of the first screen 21Sp (see FIG. 8B) and the transmissive portion Lt of the third screen 23Sp (see FIG. 8D) overlap each other. It constitutes the dimming pattern of. In the tenth dimming pattern shown in FIG. 9B, external light can be taken in from the transmissive portions Lt overlapping in the front and rear, and the indoor Ri side can be relatively brightened.

Referring to FIG. 9C, the first screen 21Sp of the first blind body 1B is folded, and the second screen 2Sp of the first blind body 1B is unfolded. Further, the third screen 23Sp of the second blind body 2B is developed. Further, the first blind body 1B and the second blind body 2B are arranged in a substantially coincident state in the left-right direction.

In the state shown in FIG. 9C, the transparent portion Lt of the second screen 22Sp (see FIG. 8C) and the non-transparent portion Lb of the third screen 23Sp (see FIG. 8D) overlap each other. It constitutes 11 dimming patterns. In the eleventh dimming pattern shown in FIG. 9C, the indoor Ri side can be relatively darkened by blocking the outside light.

The light transmittance of the non-transmissive portion Lb of the second screen 22Sp shown in FIG. 8C is reduced with respect to the non-transmissive portion Lb of the first screen 21Sp shown in FIG. 8 (B). .. As a result, compared with the ninth dimming pattern (see FIG. 9A), the eleventh dimming pattern shown in FIG. 9C shields the outside light and makes the indoor Ri side darker. can.

Referring to FIG. 9D, the first blind body 1B is moved to the left with respect to the second blind body 2B from the state shown in FIG. 9C. In the state shown in FIG. 9D, the transmissive portion Lt of the second screen 22Sp (see FIG. 8C) and the transmissive portion Lt of the third screen 23Sp (see FIG. 8D) overlap, the twelfth. It constitutes the dimming pattern of. In the twelfth dimming pattern shown in FIG. 9D, external light can be taken in from the transmissive portions Lt overlapping in the front and rear, and the indoor Ri side can be relatively brightened.

(Blind action)
Next, the action and effect of the blind 20 according to the second embodiment will be described. With reference to FIG. 8 or 9, since the blind 20 comprises the second blind body 2B only with the third screen 23Sp, it is possible to realize a dimming pattern different from the dimming pattern according to the first embodiment.

Further, referring to FIG. 8 or 9, in the blind 20, since the non-transparent portion Lb of the first screen 21Sp and the non-transmissive portion Lb of the second screen 22Sp are arranged in the same row, the dimming according to the first embodiment is performed. A dimming pattern different from the pattern can be realized.

[Third Embodiment]
(Blind composition)
Next, the configuration of the blind according to the third embodiment of the present invention will be described. Referring to FIG. 10, the blind 30 according to the third embodiment of the present invention includes a first blind body 1R and a second blind body 2R. Further, the blind 30 includes a head rail Rh as a support member and a bottom rail Rb as a support member.

Referring to FIG. 10, the head rail Rh and the bottom rail Rb are arranged to face each other. The head rail Rh can be attached to the upper part of the window frame or the ceiling surface. The bottom rail Rb can be mounted on the floor or under the floor.

Referring to FIG. 10, the head rail Rh suspends the first blind body 1R via a plurality of brackets 3Br with runners Rn and a set frame Fs. Further, the head rail Rh suspends the second blind body 2R via a plurality of brackets 3Br with runners Rn and a set frame Fs.

Referring to FIG. 10, the bottom rail Rb holds the first blind body 1R via a plurality of brackets 3Br with runners Rn and a set frame Fs. Further, the bottom rail Rb holds the second blind body 2R via a plurality of brackets 3Br with runners Rn and a set frame Fs.

Referring to FIG. 10, one upper set frame Fs rotatably supports the first take-up pipe 31p. One lower set frame Fs rotatably supports the second take-up pipe 32p. Similarly, the other upper set frame Fs rotatably supports the third take-up pipe 33p. The other lower set frame Fs rotatably supports the fourth take-up pipe 34p.

Referring to FIG. 10, the first blind body 1R and the second blind body 2R are arranged in the front-rear direction of the head rail Rh. The first blind body 1R is arranged on the indoor Ri side. The second blind body 2R is arranged on the outdoor Ro side. Further, the first blind body 1R and the second blind body 2R can move in the left-right direction independently of each other along the longitudinal direction of the head rail Rh and the bottom rail Rb.

Referring to FIG. 10, in the first blind body 1R, a first screen 1Sr serving as a first shielding material and a second screen 2Sr serving as a second shielding material are vertically connected to each other. The second blind body 2R connects the third screen 3Sr, which is the third shielding material, and the fourth screen 4Sr, which is the fourth shielding material, vertically. The first screen 1Sr, the second screen 2Sr, the third screen 3Sr, and the fourth screen 4Sr are each composed of a rollable roll screen.

With reference to FIG. 10, in the first screen 1Sr, similarly to FIG. 4B, the transparent portion Lt and the non-transparent portion Lb form a pattern of vertical stripes alternately continuous in the left-right direction. Similarly, in the second screen 2Sr, as in FIG. 4C, the transparent portion Lt and the non-transparent portion Lb form a pattern of vertical stripes that are alternately continuous in the left-right direction.

With reference to FIG. 10, in the third screen 3Sr, similarly to FIG. 5B, the transparent portion Lt and the non-transparent portion Lb form a pattern of vertical stripes alternately continuous in the left-right direction. Similarly, in the fourth screen 4Sr, as in FIG. 5C, the transparent portion Lt and the non-transparent portion Lb form a pattern of vertical stripes that are alternately continuous in the left-right direction.

Referring to FIG. 10A, the first screen 1Sr and the second screen 2Sr are connected by an intermediate bar 3Bm. One end side of the first screen 1Sr is wound around the first take-up pipe 31p. The other end side of the second screen 2Sr is wound around the second take-up pipe 32p.

Similarly, referring to FIG. 10A, the third screen 3Sr and the fourth screen 4Sr are connected by an intermediate bar 3Bm. One end side of the third screen 3Sr is wound around the third take-up pipe 33p. The other end side of the fourth screen 4Sr is wound around the fourth take-up pipe 34p.

By rotating the first take-up pipe 31p in one direction with reference to FIG. 10A, the first screen 1Sr can be taken up. Since the first screen 1Sr and the second screen 2Sr are connected by the intermediate bar 3Bm, the first screen 1Sr and the second screen 2Sr can be raised together (see FIG. 10B).

The second screen 2Sr can be wound by rotating the second winding pipe 32p in the other direction with reference to FIG. 10 (A). Since the first screen 1Sr and the second screen 2Sr are connected by the intermediate bar 3Bm, the first screen 1Sr and the second screen 2Sr can be lowered together.

By rotating the third take-up pipe 33p in one direction with reference to FIG. 10A, the third screen 3Sr can be taken up. Since the third screen 3Sr and the fourth screen 4Sr are connected by the intermediate bar 3Bm, the third screen 3Sr and the fourth screen 4Sr can be raised together.

With reference to FIG. 10A, the fourth screen 4Sr can be wound by rotating the fourth winding pipe 34p in the other direction. Since the third screen 3Sr and the fourth screen 4Sr are connected by the intermediate bar 3Bm, the third screen 3Sr and the fourth screen 4Sr can be lowered together (see FIG. 10B).

(Blind action)
Next, the action and effect of the blind 30 according to the third embodiment will be described. Referring to FIG. 10A, the first screen 1Sr and the third screen 3Sr are arranged to face each other. Further, the second screen 2Sr and the fourth screen 4Sr are arranged so as to face each other.

From the state shown in FIG. 10A, the first take-up pipe 31p is operated to wind the first screen 1Sr, and the fourth take-up pipe 34p is operated to wind the fourth screen 4Sr. Then, the second screen 2Sr and the third screen 3Sr can be overlapped with each other in a state of facing each other (see FIG. 10B). Then, the first dimming pattern according to the third embodiment can be realized.

From the state shown in FIG. 10A, the second take-up pipe 32p is operated to wind the second screen 2Sr, and the fourth take-up pipe 34p is operated to wind the fourth screen 4Sr. Therefore, the first screen 1Sr and the third screen 3Sr can be overlapped with each other in a state of facing each other. Then, the second dimming pattern according to the third embodiment can be realized.

From the state shown in FIG. 10A, the second take-up pipe 32p is operated to wind the second screen 2Sr, and the third take-up pipe 33p is operated to wind the third screen 3Sr. Therefore, the first screen 1Sr and the fourth screen 4Sr can be overlapped with each other in a state of facing each other. Then, the third dimming pattern according to the third embodiment can be realized.

From the state shown in FIG. 10A, the first take-up pipe 31p is operated to wind the first screen 1Sr, and the third take-up pipe 33p is operated to wind the third screen Sr. Therefore, the second screen 2Sr and the fourth screen 4Sr can be overlapped with each other in a state of facing each other. Then, the fourth dimming pattern according to the third embodiment can be realized.

With reference to FIG. 10, the blind 30 is dimmed by moving the roll screen of the first blind body 1R in the longitudinal direction of the head rail Rh and the bottom rail Rb with respect to the roll screen of the second blind body 2R. The pattern can be further increased.

Referring to FIG. 10, the blind 30 uses four types of screens and can realize a plurality of dimming patterns by combining two types of roll screens. In the blind 30, the transmissive portion Lt and the non-transmissive portion Lb combine a vertical striped roll screen in the front-rear direction, and one screen can be moved in the longitudinal direction of the head rail Rh and the bottom rail Rb. It can be increased further.

[Fourth Embodiment]
(Blind composition)
Next, the configuration of the blind according to the fourth embodiment of the present invention will be described. With reference to FIG. 11 or FIG. 12, in the fourth embodiment of the present invention, the vertical stripe pattern displayed on the first screen 1Sp to the fourth screen 4Sp disclosed in the first embodiment is displayed as a design rich in design. The first screen 41Sp is changed to the fourth screen 44Sp. The first screen 41Sp to the fourth screen 44Sp according to the fourth embodiment shown in FIGS. 11 or 12 are all developed state diagrams.

With reference to FIG. 11A, a plurality of petals Pe are designed on the first screen 41Sp, which is the first shielding material. These petals Pe are formed by the non-transparent portion Lb. Further, the background of these petals Pe is formed by the transparent portion Lt.

With reference to FIG. 11B, a plurality of leaves Le are designed on the second screen 42Sp, which is the second shielding material. These leaves Le are formed by the non-permeable portion Lb. Further, the background of these leaves Le is formed by the transparent portion Lt.

With reference to FIG. 11C, a plurality of tree Trs are designed on the third screen 43Sp, which is the third shielding material. These tree Trs are formed by the non-transparent portion Lb. Further, the background of these trees Tr is formed by the transparent portion Lt.

Referring to FIG. 11 (D), the fourth screen 44Sp, which is the fourth shielding material, has the same design as that of FIG. 11 (A), but these petals Pe are formed by the transmission portion Lt. There is. Further, the background of these petals Pe is formed by the non-transparent portion Lb. That is, in the fourth screen 44Sp, the brightness of the first screen 41Sp is reversed.

(Composition of dimming variation)
Next, the configuration of the dimming variation of the blind 40 according to the fourth embodiment will be described. Referring to FIG. 12A, in the blind 40, the first screen 41Sp is arranged in the front and the third screen 43Sp is arranged in the rear, and the first screen 41Sp and the third screen 43Sp are overlapped with each other. In the dimming pattern shown in FIG. 12A, a design in which petals Pe are bloomed on the tree Tr can be displayed. In the dimming pattern shown in FIG. 12A, the indoor Ri side can be relatively bright.

Referring to FIG. 12B, in the blind 40, the second screen 42Sp is arranged in the front and the third screen 43Sp is arranged in the rear, and the second screen 42Sp and the third screen 43Sp are overlapped with each other. In the dimming pattern shown in FIG. 12B, the design in which the leaf Le has grown can be displayed on the tree Tr. In the dimming pattern shown in FIG. 12B, the indoor Ri side can be relatively bright.

Referring to FIG. 12C, in the blind 40, the first screen 41Sp is arranged in the front and the fourth screen 44Sp is arranged in the rear, and the first screen 41Sp and the fourth screen 44Sp are overlapped with each other. In the dimming pattern shown in FIG. 12C, a design in which the petal Pe formed by the non-transmissive portion Lb and the petal Pe formed by the transmissive portion Lt are overlapped and the entire surface is formed by the non-transmissive portion Lb can be displayed. In the dimming pattern shown in FIG. 12C, the indoor Ri side can be relatively darkened.

Referring to FIG. 12 (D), the blind 40 has the second screen 42Sp arranged in the front and the fourth screen 44Sp arranged in the rear, and the second screen 42Sp and the fourth screen 44Sp are overlapped with each other. In the dimming pattern shown in FIG. 12 (D), a design in which the backgrounds of the petals Pe and the leaves Le are darkened can be displayed. In the dimming pattern shown in FIG. 12 (D), the indoor Ri side can be relatively darkened.

Referring to FIG. 12 (E), the blind 40 shifts the first screen 41 Sp to the left with respect to the fourth screen 44 Sp from the state shown in FIG. 12 (C). In the dimming pattern shown in FIG. 12 (D), the indoor Ri side can be made relatively dark, but a design in which petals Pe appear on a dark background can be displayed.

(Blind action)
Next, the action and effect of the blind 40 according to the fourth embodiment will be described. With reference to FIG. 11 or FIG. 12, the blind 40 is a vertical striped pattern displayed on the first screen 1Sp to the fourth screen 4Sp disclosed in the first embodiment, and the first screen 41Sp displaying a design rich in design. Is changed to the 4th screen 44Sp.

The blind 40 can realize a dimming pattern different from the combination of the first screen 1Sp to the fourth screen 4Sp by using the first screen 41Sp to the fourth screen 44Sp displaying the design rich in design. The design of the first screen 41Sp to the fourth screen 44Sp can also be applied to the first screen 1Sr to the fourth screen 4Sr (see FIG. 10).

1 1st blind body 2 2nd blind body 1Sp 1st screen (1st shielding material)
2Sp 2nd screen (2nd shielding material)
3Sp 3rd screen (3rd shielding material)
4Sp 4th screen (4th shielding material)
Lb non-transmissive part Lt transmissive part Rh head rail (support member)

Claims (5)

A first blind body in which the first shielding material and the second shielding material are vertically connected, and
With a second blind body having at least a third shielding material,
A support member for suspending the first blind body and the second blind body in the front-rear direction is provided.
A blind in which a transparent portion and a non-transmissive portion are formed on the surface of the first shielding material, at least one of the second shielding materials, and the third shielding material. The transmissive portion and the non-transmissive portion form vertical stripes and are formed alternately and continuously in the left-right direction.
The blind according to claim 1, wherein at least one of the first blind body and the second blind body can move in the longitudinal direction along the support member. The blind according to claim 1 or 2, wherein the second blind body further includes a fourth shielding material connected to the third shielding material in the vertical direction. The blind according to claim 3, wherein the fourth shielding material forms the transparent portion and the non-transparent portion alternately and continuously in a vertical stripe shape. The blind according to any one of claims 2 to 4, wherein the transparent portion of the first shielding material and the non-transmissive portion of the second shielding material are formed at overlapping positions in the longitudinal direction of the support member.

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