JP6022818B2 - Shading sheet - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a light shielding sheet made of a three-dimensional fabric comprising a front knitted fabric portion, a back knitted fabric portion, and a connecting portion that connects the two knitted fabrics. With the double raschel knitted fabric knitted sparsely to improve ventilation and the connecting portion knitted to a certain density to obtain a light shielding function, a light shielding sheet having a ventilation function and a light shielding function is formed. Provided is an outdoor light-shielding sheet that also has a cooling function for cooling the wind passing therethrough by allowing water to flow down.

In the past, warmth and firewood have been used as a means to block the strong sunlight in summer and improve the living environment of residents.
Today, curtains and blinds are the mainstream, and many have a light shielding function, a light control function, and a ventilation function.
Many improvements have been proposed for these curtains and blinds.

Among these, there are curtains and blinds using a three-dimensional fabric made of knitted fabric or woven fabric.
For example, as shown in Patent Document 1, there is a blind knitted fabric that is formed so as to shield one light by forming an oblique knitted portion having a cross section for shielding on a knitted fabric serving as a base fabric.

  In Patent Document 2, two net-shaped knitted fabrics and the two knitted fabrics are connected to form a napped layer having a light-shielding function by a connecting yarn, and the napped layers are formed into two net-shaped knitted fabrics. It is shown that the amount of light is adjusted by controlling the angle by vertically moving the lens.

  The fabrics of Patent Document 1 and Patent Document 2 described above are double raschel knitted fabrics, whereas in the example shown in Patent Document 3, a three-dimensional structure is formed with a woven fabric, and the vertical movement of two front and back ground structures is performed. A possible dimmable fabric is proposed.

In addition, as shown in Patent Document 4, the inventor forms two lattice-shaped knitted fabrics, forms a light-shielding layer with connecting yarns connecting the two knitted fabrics, and further A light-transmitting knitted sheet material is proposed which is used for blinds and shades after the knitted fabric is hardened with resin.
This example is a double raschel knitted fabric, which provides a functional sheet material.

Furthermore, as means for lowering the temperature, there is a means for lowering the temperature of the wind by causing water to flow down the blind or the sheet material.
For example, as shown in Patent Document 5, water is allowed to flow down from above the blind, the wind is cooled by heat of vaporization, the cool air is guided into the room, and the room temperature is lowered.

  In addition, as shown in Patent Document 6, a green water curtain is proposed in which a net-like knitted fabric is attached, plants are entangled with it, and water is allowed to flow down to lower the temperature of the airflow flowing from the window using heat of vaporization. Has been.

Japanese Utility Model Publication No. 3-128680 JP 2001-172841 A JP 2002-54050 A Japanese Patent No. 4074884 JP 2008-45387 A JP 2009-17800 A Japanese Patent Laid-Open No. 2007-192016

As described above, many developments have been made as light shielding, dimming and ventilation means. However, these are being developed mainly for indoor use.
In other words, in these settings, means for once entering the room and blocking or dimming the entering sunlight has been proposed.
Although each proposal has a certain effect, it does not prevent sunlight from entering the room, but rather tends to be viewed as adjusting the brightness of the room mainly by dimming rather than blocking light. Is strong.

In the first place, the purpose of using curtains and blinds indoors is to prevent the room from being seen from outside and adjust the indoor brightness. is there.
Sunlight includes direct light that directly receives light from the sun and reflected light that is reflected by direct light hitting, for example, a wall surface.
Both direct light and reflected light cause an increase in temperature.

Therefore, in order to prevent the temperature rise due to sunlight, it is effective to reflect the direct light toward the sky as much as possible.
By doing so, for example, the temperature rise of the wall surface itself due to direct light hitting the wall surface of the building can be suppressed, and the secondary temperature increase due to the reflected light reflected from the wall surface toward the ground can be suppressed.

  Regarding these things, Patent Document 7 proposes a method for suppressing the heat island phenomenon caused by reflected light by reflecting sunlight to the sky by laying tiles having a surface formed at a certain angle on the surface of the building. ing.

From this point of view, looking at conventional examples, Patent Documents 1 to 4 show indoor curtains and blind materials provided with light shielding, light control, and ventilation by a three-dimensional fabric.
These proposals cannot be said to at least save energy by reflecting sunlight and actively suppressing the entrance of sunlight into the room.

  With respect to Patent Document 5, water is allowed to flow down from above the blind, the wind is cooled by heat of vaporization, the cool air is guided into the room, and the room temperature is lowered. A green water curtain has been proposed that attaches a knitted knitted fabric, entangles the plant and causes the water to flow down to lower the temperature of the airflow flowing in from the window using heat of vaporization, and has a sunlight reflecting function. I do not have.

  In other words, in the prior art, particularly in summer, the active technical means for reflecting sunlight to the sky (the sky, the universe) to prevent the generation of reflected light on the ground and the like, and to prevent the entry of light into the room. It was hard to say.

The present invention has been made against the background of the above circumstances.
That is, a lattice-shaped front knitted fabric portion, a lattice-shaped back knitted fabric portion, and a planar connected knitted fabric portion formed by connecting the two knitted fabrics, the planar connected knitted fabric portions being spaced apart A light-shielding sheet configured to be capable of winding up and rewinding a double raschel knitted fabric that is provided in an inclined manner between a lattice-shaped front knitted fabric portion and a lattice-shaped back knitted fabric portion.

  As a result of earnest and research in order to solve the above-mentioned problems, the front knitted fabric and the back knitted fabric of the double raschel fabric are knitted in a lattice shape to obtain a lattice-shaped front knitted fabric portion FK and a lattice-shaped back knitted fabric portion BK. At the same time, a light-shielding sheet 1 is obtained in which 11 parts of the planar connected knitted fabric portion are inclined with a predetermined interval between the two knitted fabrics, and the light-shielding sheet 1 can be rolled up and rewound freely. In addition, a liquid flow-down device M for flowing down a liquid such as water was provided, and the light-shielding sheet 1 having a reflection function, a light-blocking function, a light control function, a ventilation function, and a cooling function was completed.

That is, the present invention includes (1) a lattice-shaped front knitted fabric portion, a lattice-shaped back knitted fabric portion, and a planar connected knitted fabric portion knitted with a connecting yarn, and the planar connected knitted fabric portion is constant. light upward by being constituted by a double raschel knitted fabric formed by bridgingly horizontally disposed and inclined between the grid-like Omoteami fabric portion and the lattice-shaped Urahen fabric portion can reflect at intervals A rectangular light-shielding sheet is provided with a liquid flow passage portion so that liquid flows from the liquid flow passage portion to the rectangular light-shielding sheet, and the liquid flow passage portion is attached to the front side of the light-shielding sheet. It exists in the shading sheet which flows the liquid in the direction .

That is, according to the present invention, (2) the liquid flow passage portion is provided at the upper end position of the light shielding sheet, and the liquid flow passage portion is provided so as to surround the upper end portion of the light shielding sheet. The light-shielding sheet according to the above (1) is provided with a winding mechanism .

That is, the present invention resides in (3) the light shielding sheet according to the above (1) , in which the liquid flow passage portion is provided in the middle position of the light shielding sheet .

That is, the present invention is (4) a slit yarn in which a reflection function yarn is used as a connection yarn, the planar connection knitted fabric portion has a reflection function, and the reflection function yarn is formed by depositing metal on a film. It exists in the light shielding sheet | seat of said (1)-(3) which is .

  In addition, as long as the objective of this invention is followed, the structure which combined said (1)-(9) suitably is also employable.

The light-shielding sheet of the present invention includes a lattice-shaped front knitted fabric, a lattice-shaped back knitted fabric, and a planar connected knitted fabric knitted with connecting yarns, and the planar connected knitted fabric is arranged at regular intervals. and since a double Raschel knit fabric bridgingly structure in inclined manner between the grid-like Urahen locations can be formed by integrally double Raschel machine, both its production is very efficient, grid-like Urahen locations Since the portion is provided substantially horizontally, light can be efficiently reflected upward (that is, to the sky).

In the light shielding sheet of the present invention, the planar connected knitted fabric portions of the light shielding sheet are in an inclined state. Therefore, when the sheet is wound up, the planar connected knitted fabric portions M are close to each other as if they were armor. It can be rolled up firmly on top of each other.
Thereby, when not in use, it is not bulky, and it is easy to wind up, and a drawing effect is obtained.
After winding up, there is also an advantage that the wet shading sheet is dehydrated and dried quickly.

  In the light-shielding sheet of the present invention, the planar connecting knitted fabric is inclined between the lattice-shaped front knitted fabric and the lattice-shaped back knitted fabric so as to reflect sunlight. Even when it is installed straight in the direction, the direct sunlight is reflected upward, that is, to the sky, and the effect of suppressing the temperature rise can be obtained.

  And, when the light shielding sheet of the present invention uses a slit yarn formed by depositing metal on a film as a connecting yarn for knitting the planar connected knitted fabric portion, the planar connected knitted fabric portion However, the direct sunlight can be efficiently reflected to the sky.

  And when the light-shielding sheet of this invention provides a liquid flow path part in the upper end position, and flows a liquid from this liquid flow path part, the liquid falls naturally in the order direction of a planar connection knitted fabric part. As a result, the liquid spreads efficiently over the planar connected knitted fabric portion in order, and an accurate cooling function for cooling the wind and air passing through the heat of vaporization is exhibited.

And when the light-shielding sheet of this invention provides a liquid flow path part on the front side in the vicinity of the middle position, it becomes possible to make a distinction so as to positively allow air to flow upward and moisture air to flow downward. .
Further, since the liquid flow passage portion can be provided at the most effective position of the light shielding sheet according to the installation location of the light shielding sheet, an efficient cooling function is exhibited.

  And when the light-shielding sheet of the present invention is provided with a winding mechanism, it can be wound up when it is unnecessary and can be rewound to a required length during use, which is convenient.

  And, when the liquid flow passage portion provided in the light shielding sheet of the present invention is a pipe shape provided with a large number of small holes, the liquid flow can be easily and inexpensively regardless of the upper end position or the middle position of the light shielding sheet. Since a road part can be provided, it is very efficient structurally and economically.

FIG. 1 is a schematic explanatory diagram of a light shielding sheet. FIG. 2 is a schematic side view of a light-shielding sheet that can be rolled up and rewound, which is attached to the outside of the window W or the like. FIG. 3 is an explanatory diagram of a state when direct light strikes the planar connected knitted fabric portion. FIG. 4 is a schematic side view in which a liquid flow down device having a liquid flow passage portion is provided at the upper end position of the light shielding sheet. FIG. 5 is a schematic explanatory diagram (partially omitted) in which a large number of small holes are provided at regular intervals below and water is dripping from a liquid flow passage portion formed in a pipe shape. FIG. 6 is a schematic side view of a liquid flow down device having an encircling liquid flow passage portion provided so as to surround the upper end portion of the light shielding sheet. FIG. 7 is a schematic side view of the liquid flow down device in which the liquid flow passage portion is provided in the middle of the light shielding sheet. FIG. 8 is an explanatory diagram (partially omitted) of the double raschel machine. FIG. 9 is an enlarged organization chart (partially omitted) of the front knitted fabric. FIG. 10 is an overview of the grid-like front knitted fabric portion and the grid-like back knitted fabric portion. FIG. 11 is a schematic explanatory diagram in which the planar connected knitted fabric portion connects the grid-like front knitted fabric portion and the grid-like back knitted fabric portion.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings as necessary.

(First embodiment)
The light shielding sheet in the present embodiment is knitted by the double raschel machine R shown in the explanatory view (partially omitted) of FIG. The double raschel machine R has two rows of needles, a front needle FN and a back needle BN, and a front knitted fabric F is knitted with the front needle FN and a back knitted fabric B is knitted with the back needle BN.
In the present embodiment, seven Osamu L (L1 to L7) are used.
In addition, a cord such as an ear cord or a reinforcing knitting yarn is used (not shown).

The front knitted fabric F is knitted using the knitting L1 to the knitting L3, and the back knitted fabric B is knitted using the knitting L5 to the knitting L7.
In the present embodiment, the front knitted fabric F includes a chain knitting C knitted with the knitting L3 and insertion knitting S1, S2 knitted with the knitting L1, L2 as shown in an enlarged organization chart (partially omitted) in FIG. To form a lattice-like knitted fabric portion FK shown in the overview diagram of FIG.
The back knitted fabric B is a lattice having the same structure as the lattice-shaped front knitted fabric portion FK formed by the chain knitted fabric C knitted by the cloth L4 and the inserted knitted fabrics S1, S2 inserted by the cloth L5, L6. It becomes the shape back knitted fabric part BK.

Then, as shown in the schematic explanatory diagram of FIG. 11, a planar connected knitted fabric portion 11 in which the lattice-shaped front knitted fabric portion FK and the lattice-shaped back knitted fabric portion BK are connected is formed by the rib L4.
In the present embodiment, the knitting for knitting the planar connected knitted fabric portion 11 uses one piece of the hood L4, but several pieces can be used as necessary.

When connecting the chain stitch C of the grid-like front knitted fabric part FK and the chain stitch C of the grid-like back knitted fabric part BK as shown in FIG. By connecting to the shifted chain stitch C2, it is possible to form the planar connected knitted fabric portion 11 in a state of crossing the lattice-shaped front knitted fabric portion FK and the lattice-shaped back knitted fabric portion BK obliquely (inclination angle θ).
When the opposing chain stitches C are shifted one by one, for example, when the chain stitch C1 of the grid-like front knitted fabric portion FK is connected to the chain stitch C3 of the grid-like back knitted fabric portion BK, the degree of obliqueness increases. The width H of the planar connected knitted fabric portion 11 can be increased.
In the present embodiment, one chain stitch is displaced.
It is also possible to make a shift between two chain stitches.

The light shielding sheet 1 knitted in this way is cut into a rectangle having an appropriate size.
The rectangular light shielding sheet 1 is used in the horizontal direction.
As shown in the schematic explanatory view of FIG. 1 (partially omitted), the planar connected knitted fabric portions 11 are arranged at regular intervals while being inclined in the front side direction of the light shielding sheet 1 by being set in the horizontal direction.
This rectangular light shielding sheet can be rolled up without becoming bulky.

For example, as shown in the schematic side view of FIG. 2, it is possible to employ a winding mechanism (not shown) that easily winds and rewinds by winding around the roll core 2 and rotating the roll core 2.
The roll core 2 can be rotated manually or with a drive source such as a motor, but in this embodiment, manual is adopted.
And the fixing mechanism (not shown) which stops at a predetermined winding position is employ | adopted.
By disposing the light shielding sheet at a certain angle from the vertical direction, the outside can be seen through from the inside while being shaded.
Since the wind can pass through the planar connected knitted fabric portion 11, there is an advantage that the so-called wind flutter does not occur.

Since the planar connected knitted fabric portion 11 of the light shielding sheet 1 is not used, the planar connected knitted fabric portions 11 are close to each other when they are rolled up, and overlap each other as if they are armored. It can be rolled up firmly.
Thereby, it can roll up without being bulky.
Furthermore, as will be described later, even when a liquid is flowed, the effect of squeezing water adhering to the surface at the same time as winding is obtained.

The light shielding sheet 1 configured in this way is attached to the outside of a window or the like W, for example.
The light-shielding sheet 1 is set to an appropriate length according to the size and installation location of the window by a winding mechanism, and as shown in the state explanatory diagram of FIG. 3, the planar connected knitted fabric in which the direct sunlight Y1 of sunlight is inclined. A part of the light hits the part 11, and part of the light is reflected upward to become reflected light Y2, and part of the light becomes passing light Y3, which is dimmed to an appropriate brightness and enters the room.

Here, if the reflective function yarn is used for knitting the planar connected knitted fabric portion 11, the sunlight is efficiently reflected, and the temperature of the light shielding sheet 1 itself is further prevented from rising, and the temperature rise of the building and its indoors and outdoors is prevented. Is effective.
Examples of the reflective function yarn include an aluminum-deposited slit yarn such as lame yarn, a stainless yarn, and a yarn plated with metal.
Further, a yarn provided with titanium oxide or the like can also be used.
And a wind is guide | introduced indoors from between the planar connection knitted fabric parts 11 extended in the inclined form at fixed intervals.
That is, the light shielding sheet 1 sufficiently exhibits the reflection function, the light shielding function, the light control function, and the ventilation function.

(Second Embodiment)
In addition to the light shielding sheet 1 in the first embodiment described above, the light shielding sheet in the present embodiment is a liquid flow down device having a liquid flow passage portion 3 at the upper end position as shown in the schematic side view of FIG. M is provided.
As shown in the schematic explanatory diagram of FIG. 5, the liquid flow passage portion 3 is formed in a pipe shape, and a plurality of small holes 31 are provided at regular intervals below the liquid flow passage portion 3.
This makes it possible to provide the liquid flow passage portion easily and inexpensively regardless of the upper end position and the middle position of the light shielding sheet, so that it is extremely efficient structurally and economically.
Water is passed through the liquid flow passage portion 3 and drops from the small hole 31.
The dropped water flows down sequentially and efficiently according to the inclination of the planar connected knitted fabric portion 11, that is, according to the forward direction.
At this time, it cools the passing air by taking away the heat of vaporization and exhibits a cooling function.
The feeding or dripping of water into the liquid flow passage portion 3 may be performed by using a pump or the like or by the water pressure of the water supply, and the liquid flow down device M has these functions.

(Third embodiment)
As shown in the schematic side view of FIG. 6, the light shielding sheet 1 in the present embodiment is provided with the liquid flow path portion 3 shown in the second embodiment surrounding the upper end portion of the light shielding sheet 1. Yes.
By adopting the surrounding liquid flow passage portion 4 that is provided so as to surround the upper end portion of the light shielding sheet 1 in such a manner, water is accurately dropped on the upper end of the light shielding sheet 1. The roll core 2 is also included, and a simple shape having a protective function is possible.

(Fourth embodiment)
In the light shielding sheet 1 in the present embodiment, the liquid flow passage portion 3 is provided in the middle of the light shielding sheet 1 as shown in the schematic side view of FIG.
In other words, when there is no need to dripping water over the entire light shielding sheet 1 or when it is desired to positively pass the air wind upward and the moisture air downward, the liquid flow passage section 3 is moved and fixed at a certain height. And water can be dripped from the part.
The liquid flow passage portion 3 has fixing portions (not shown) provided on both sides of the light shielding sheet 1, and by fixing both ends of the liquid flow passage portion 3 to the fixing portion, The liquid flow passage portion 3 can be retained at a required position.
Further, by providing guides for guiding the flow passage portion 3 on both sides of the light shielding sheet, the liquid flow passage portion 3 can be actively moved up and down. In this case, the water dripping region can be adjusted. it can.

Here, with respect to the knitting yarn used for knitting the light-shielding sheet, for example, polyester 75de / 36f × 2 as a knitting yarn for chain knitting in a lattice-like surface knitted fabric portion, and 75de / 36f × as a knitting yarn for insertion knitting 2. 150de / 48f × 2 is exemplified as the knitting yarn of the planar connected knitted fabric portion.
When lame yarn is used as the knitting yarn of the planar connected knitted fabric portion, one equivalent to 120 cuts × 2 can be mentioned.

The present invention has been described above by taking the embodiment thereof as an example. However, the present invention is not limited to the embodiment as long as the essence is not changed, and various modifications are possible.
For example, the structure of the lattice-shaped front knitted fabric portion FK and the lattice-shaped back knitted fabric portion BK does not necessarily have a lattice shape. In short, it may be a net-shaped structure that does not hinder the reflection function and the ventilation function.
Further, the knitting yarn of the planar connected knitted fabric portion 11 does not necessarily need to be one type, and it is possible to use two types of polyester yarns and metal yarns, for example, using two lumps L. is there.
And naturally, it is also possible to give the light-shielding sheet 1 a resin to impart hardness.
At the time of resin processing, it is also possible to improve the reflection function by putting metal powder such as aluminum into the resin.
Further, the light shielding sheet 1 can be used not only for a window or the like W or a veranda, but also as a large wall material of a building.
Moreover, the light shielding sheet 1 can be used not only outdoors but also indoors.

  The light-shielding sheet of the present invention can be used in any environment with various shapes in various directions regardless of the size, such as the opening of a building.

DESCRIPTION OF SYMBOLS 1 ... Light-shielding sheet 11 ... Planar connection knitted fabric part 2 ... Roll core 3 ... Liquid flow path part 31 ... Small hole 4 ... Surrounding type liquid flow path part B ... Back Knitted fabric BK ... Grid back knitted fabric portion BN ... Back needle C (C1, C2, C3) ... Chain stitch F ... Front knitted fabric FK ... Grid-shaped front knitted fabric portion FN .... Front needle H ... Width L (L1 to L7) of planar connected knitted fabric part ... Osa M ... Liquid flow down device R ... Double raschel machine S (S1, S2) ... Insertion Edition W ... Window etc. Y1 ... Direct light Y2 ... Reflected light Y3 ... Passing light

Claims (4)

A lattice-shaped front knitted fabric portion, a lattice-shaped back knitted fabric portion, and a planar connected knitted fabric portion knitted with a connecting yarn, and the planar connected knitted fabric portion and the lattice-shaped front knitted fabric portion and the lattice at regular intervals. It is possible to reflect light upward by being composed of a double raschel knitted fabric that is arranged in a horizontal direction between the shaped back knitted fabric parts and is provided in an inclined manner ,
A liquid flow passage portion is provided in the rectangular light shielding sheet, and the liquid is caused to flow from the liquid flow passage portion to the rectangular light shielding sheet,
A light shielding sheet, wherein a liquid flow passage portion is attached to the front side of the light shielding sheet and allows the liquid to flow in a normal direction. The liquid flow passage portion is provided at the upper end position of the light shielding sheet;
2. The light shielding sheet according to claim 1, wherein the liquid flow passage portion is provided so as to surround an upper end portion of the light shielding sheet, and a winding mechanism for the light shielding sheet is provided .   The light shielding sheet according to claim 1, wherein the liquid flow passage portion is provided at a position in the light shielding sheet.   The reflective yarn is used as a connecting yarn, the planar connecting knitted fabric portion has a reflecting function, and the reflecting functional yarn is a slit yarn formed by depositing metal on a film. ~ 3 light shielding sheet.

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