JP2009018037A - Translucent lifting curtain - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a material for a translucent lifting curtain of a plain style which restrains and prevents light from leaking from pinholes of the curtain material. <P>SOLUTION: The material for a translucent lifting curtain includes a first material, a second material superposed on the first material and made of a translucent material, and one or more material connecting tapes to connect the first material and the second material and joined to the first material by sewing. The second material has pinholes in a position corresponding to at least one material connecting member linking portion, and at least some of the material connecting member connects the first material and the second material by passing through the pinholes. The shortest distance between the tape sewing position where the material connecting tape is sewn and joined to the first material and the material connecting member linking portion is 1 mm or more. A translucent member made of a translucent material larger than the pinhole is included in the position corresponding to the pinhole between the material connecting tape and the first material. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a plain-style light-shielding elevating curtain that controls the degree of light shielding by raising and lowering the curtain fabric up and down, and in particular prevents light leakage from the pinhole of the curtain fabric.

  The curtain is generally used for the purpose of blocking sunlight. Curtains used in places where light shielding properties are particularly necessary, such as bedrooms, are required to block most of the incident light or almost completely by using a light blocking fabric. Further, in order to make the room in a comfortable state when the curtain is closed, a design design is applied to the side (front side) facing the room of the curtain. Thus, the light-shielding curtain is required to achieve both light-shielding properties and design properties.

  One type of curtain is a shade-type lifting curtain. This type of elevating curtain is generally operated by hanging the curtain fabric and the operation string (operation code) from the horizontally long box-shaped head rail installed at the top of the window opening of the building, and pulling the operation string. By doing so, the curtain fabric can be raised and lowered to control the light shielding of the window opening.

  Plain and sharp styles are known as shade-type elevating curtains. The sharp style has a structure in which a plurality of rod-shaped members are arranged in the width direction of the curtain fabric. This bar-shaped member can keep the shape of the curtain sharp. On the other hand, the plain-style elevating curtain is known as a relatively low-cost curtain without using a bar-shaped member.

  A plain-style light-shielding elevating curtain is schematically shown in FIGS. Here, FIG. 1 shows the side (front side) facing the interior of the room of the elevating curtain 1, and FIG. 2 shows the side (back side) facing the outside of the window. The curtain of this structure consists of a fabric on the front side (first fabric 10) with a design designed on the surface facing the interior of the room, and a fabric on the back side made of a light-shielding fabric on the surface facing the outside of the window ( A second fabric 20) is formed on top of one another. These fabrics are connected to the head rail 2 at the top of the curtain by Velcro (registered trademark) or the like. The curtain is opened and closed by rolling up and down the fabric, and the lifting cord 3 for that purpose is disposed on the back side of the curtain fabric by being inserted through a projecting ring-shaped connecting clip 38. Since the lifting / lowering cord 3 is connected to the lower part of the curtain, the lifting / lowering cord 3 can be moved up and down by moving the operation cord 4 up and down to open and close the curtain. In the lower part of the curtain, a weight bar pocket 5 for placing a weight bar therein is provided. Curtain tension can be maintained by the weight of the weight bar.

  The shade-type elevating curtain has a problem that light is leaked from a pinhole such as a small hole provided to connect the first fabric 10 and the second fabric 20 and the light shielding is not perfect.

  In order to solve the light leakage problem, several techniques have been disclosed. For example, in Patent Document 1, in order to prevent light leakage of a sharp-style light-shielding curtain that connects a front fabric and a back fabric by sewing, a superposition portion that overlaps and arranges the back fabric on the sewing portion for joining is provided. The providing technique is disclosed. Patent Document 2 discloses a technique relating to a plain style curtain that eliminates the need for a sewing portion by thermocompression bonding of a back fabric to a front fabric.

However, providing a superposition | polymerization part and adding the material for thermocompression bonding will increase the cost of curtain manufacture. Moreover, since the curtain using the material for thermocompression bonding will be generally stiff, there is also a problem in design. As described above, according to the conventional technology, it is difficult to prevent light leakage of a plain-style curtain having a simple structure at a low cost without impairing the design. In recent years, consumer demand for product performance and design has been increasing, and slight light leakage that has not been a problem before has become a problem. In particular, it has been pointed out that light leakage from pinholes impairs design, and a solution is required.
JP 2003-339521 A JP 2006-75429 A

  An object of the present invention is to obtain a light-shielding elevating curtain material and a light-shielding elevating curtain that prevent and prevent light leakage from the pinhole of the curtain fabric.

  The inventor of the present invention has clarified the cause of the light leakage of the plain style elevating curtain, and as a result of various attempts to prevent it, the present invention has been completed.

That is, the present invention comprises a first dough,
A second fabric made of a light-shielding fabric, overlaid with the first fabric,
One or more fabric connecting tapes that are sewn and joined to the first fabric for connecting the first fabric and the second fabric,
The cloth connecting tape includes a belt-shaped member and one or more cloth connecting members that are coupled to a surface of the cloth connecting member coupling portion opposite to the first cloth of the belt-shaped member,
The second fabric has a small hole at a position corresponding to at least one fabric connection member coupling portion;
At least a part of the fabric connecting member is a plain-style light-shielding elevating curtain that connects the first fabric and the second fabric by penetrating the small hole,
The light-shielding elevating curtain has a shortest distance of 1 mm or more between a tape sewing position where the fabric connecting tape is sewn and joined to the first fabric and the fabric connecting member connecting portion.

  Preferably, the light-shielding elevating curtain further includes a light-shielding member made of a light-shielding material larger than the small hole at a position corresponding to the small hole between the cloth connecting tape and the first cloth. Preferably, the light shielding member is a light shielding curtain that is a tape-shaped light shielding fabric.

The present invention also includes a first dough,
A second fabric made of a light-shielding fabric, overlaid with the first fabric,
One or more fabric connecting tapes that are sewn and joined to the first fabric for connecting the first fabric and the second fabric,
The cloth connecting tape includes a belt-shaped member and one or more cloth connecting members that are coupled to a surface of the cloth connecting member coupling portion opposite to the first cloth of the belt-shaped member,
The second fabric has a small hole at a position corresponding to at least one fabric connection member coupling portion;
At least a part of the fabric connecting member is a plain-style light-shielding elevating curtain that connects the first fabric and the second fabric by penetrating the small hole,
The light-shielding elevating curtain further includes a light-shielding member made of a light-shielding material larger than the small hole at a position corresponding to the small hole between the cloth connecting tape and the first cloth.

  Preferably, the dough connecting member includes a connecting string and a connecting clasp, the connecting string is coupled to the belt-shaped member at the dough connecting member coupling portion, and the connecting clasp is the first fabric. It is a light-shielding elevating curtain that is on the opposite side across and connected to a connecting string. Preferably, the light shielding member is a method for producing a light shielding elevating curtain, wherein the light shielding member is a tape-shaped light shielding fabric.

The present invention also includes a first dough,
A second fabric made of a light-shielding fabric, overlaid with the first fabric,
One or more fabric connecting tapes that are sewn and joined to the first fabric for connecting the first fabric and the second fabric,
The cloth connecting tape has one belt-like member, and one or more cloth connecting members that are connected to a surface of the cloth connecting member connecting portion opposite to the first cloth of the belt-like member,
The second fabric has a small hole at a position corresponding to at least one fabric connection member coupling portion;
At least a part of the fabric connecting member is a method for manufacturing a plain-style light-shielding elevating curtain that connects the light-shielding elevating curtain and the second fabric by penetrating the small hole,
The fabric connection tape is sewn to the first fabric so that the shortest distance between the tape sewing position where the fabric connection tape is sewn and joined to the first fabric and the fabric connection member connecting portion is 1 mm or more. A method of manufacturing a light-shielding elevating curtain including a step of joining together.

  Preferably, before the step of sewing and joining the fabric connecting tape to the first fabric, a light shield larger than the small hole is provided at a position corresponding to the small hole between the fabric connecting tape and the first fabric. It is a manufacturing method of the light-shielding raising / lowering curtain further including the process of arrange | positioning the light-shielding member which consists of a light-sensitive material. Preferably, the light shielding member is a method for producing a light shielding elevating curtain, wherein the light shielding member is a tape-shaped light shielding fabric.

  According to the present invention, it is possible to obtain a plain-style light-shielding elevating curtain that suppresses and prevents light leakage from a pinhole. Therefore, complete light shielding can be performed using a plain-style light-shielding elevating curtain without impairing the design, and high demands on the performance and design of the consumer's curtain can be satisfied.

  The plain-style light-shielding elevating curtain of the present invention is characterized in that a pinhole is eliminated by setting a sewing position for connecting a plurality of curtain fabrics to a predetermined position, thereby preventing light leakage of the curtain. To do. Furthermore, in the present invention, by arranging the light shielding member having a tape shape or the like at a predetermined position, light leakage can be almost completely prevented and light shielding of the curtain can be ensured.

  First, the principle of causing pinholes and light leakage in a plain-style light-shielding elevating curtain will be described.

  FIG. 3 is a schematic view including a cross section of a portion where the first fabric 10 of the conventional plain-style light-shielding elevating curtain 1 is connected to the second fabric 20. The fabric connecting tape 30 is sewn at the tape sewing position 11 on the surface of the first fabric 10 opposite to the surface facing the interior of the room.

  The first fabric 10 and the second fabric 20 are connected via a fabric connection tape 30 including a belt-shaped member 31, a connection string 37, and a connection clip 38. That is, the connection string 37 of the fabric connection tape 30 is inserted into the small hole 21 of the second fabric 20. By attaching the connection fastener 38 of the fabric connection tape 30 to the connection string 37, the second fabric 20 is disposed between the first fabric 10 and the connection fastener 38, thereby connecting the two fabrics. .

  FIG. 4 schematically shows the principle of light leakage in the case of the curtain having the conventional structure shown in FIG. Conventionally, when one place is sewn when the fabric connecting tape 30 is sewn, the vicinity of the center 33 of the belt-like member is often sewn. Therefore, as shown in FIG. 4, the shortest distance d between the tape sewing position 11 and the fabric connecting member connecting portion 36 is shortened, and the light beam 52 emitted from the light source 51 such as the sun is transmitted to the small hole 21 and the needle hole 12. This causes a problem of pinhole light leakage.

  In the case of the conventional plain style, the first cloth 10, the second cloth 20, and the cloth connecting tape 30 are arranged in this order and all are sewn. In this case, it is not necessary to provide the small hole 21 in the second fabric 20, but the needle hole at the time of sewing penetrates the first fabric 10, the second fabric 20 and the fabric connection tape 30. Since the pinhole is formed, the problem of light leakage from the pinhole is more serious.

  The present inventor arrived at the present invention after elucidating the principle of light leakage of the pinhole as described above. That is, when the vicinity of the center 33 of the belt-like member is sewn, light leakage from the pinhole occurs, so the shortest distance d between the tape sewing position 11 and the fabric connecting member connecting portion 36 is set to a predetermined length. Thus, the occurrence of such pinhole light leakage can be suppressed. In addition, as shown in FIG. 8, by arranging a light shielding member 40 between the first fabric 10 and the fabric connecting tape 30, light leakage from the pinhole is completely eliminated and the curtain is reliably shielded from light. I found out that it can be. Hereinafter, the present invention will be described in detail with reference to the drawings.

  First, the plain-style light-shielding elevating curtain 1 will be described in more detail, and then the distance d is set to a predetermined length. FIG. 5 is a schematic view including a cross section of a portion of the plain style light-shielding elevating curtain 1 that connects the first fabric 10 to the second fabric 20. FIG. 5 is a view similar to FIG. 3, but the tape sewing position 11 is different. First, the plain style light-shielding elevating curtain 1 will be described in more detail with reference to FIG.

  In FIG. 5, one or more fabric connecting tapes 30 are sewn at the tape sewing position 11 on the surface of the first fabric 10. The first fabric 10 and the second fabric 20 have substantially the same size and shape, and these fabrics are stacked and connected by a fabric connection tape 30 to be used as a curtain fabric.

  The second fabric 20 facing the outdoor side when the curtain is installed on the window uses a light-shielding material such as a light-shielding fabric in order to make the curtain light-shielding. The material of the first fabric 10 facing the indoor side may be a light-shielding material such as a light-shielding fabric, or may be a material without light shielding properties. In general, the first fabric 10 is often designed with a design on the surface facing the room. Therefore, in the case where the design is important, a general fabric having a high design property is used. One dough 10 can be used. However, from the viewpoint of improving the light shielding property, the first fabric 10 is preferably made of a light shielding material such as a light shielding fabric.

  As an example of the fabric connecting tape 30, a commercially available tape generally called “ring tape” can be used. FIG. 7 shows a schematic diagram of this type of fabric connecting tape 30. (A) is a schematic front view, and (B) is a schematic cross-sectional view near the center. The cloth connecting tape 30 includes a belt-like member 31 and a cloth connecting member 35. The cloth connecting member 35 is connected to the surface of the belt-like member opposite to the surface facing the first cloth.

  The belt-like member 31 of the cloth connecting tape 30 is generally a ribbon-like tape using a mesh material made of resin, for example, polyester, and the cloth connecting member 35 is spaced about 15 cm at the center 33 of the belt-like member. Are connected. In the present specification, the position where the cloth connecting member 35 is connected to the belt-like member 31 is referred to as a cloth connecting member connecting portion 36. A reinforcing portion 32 in which a reinforcing material is disposed is provided at the center of the belt-like member 31, and the attachment of the fabric connecting member 35 is ensured.

  The fabric connection member 35 includes a connection string 37 and a connection fastener 38. The connection string 37 is generally a string having a diameter of about 0.8 mm, and both ends of the connection string 37 are coupled to the belt-shaped member 31 at the fabric connection member coupling portion 36. Therefore, the connection string 37 has a shape that forms a ring. The connection fastener 38 generally has a resin-like ring shape and is known by the name “ring”. Since there is a gap in a part of the ring-shaped shape of the connection clip 38, the connection clip 38 has a structure that can be attached to and detached from the ring-shaped part of the connection string 37. Note that a part of the ring-shaped shape of the connection fastener 38 may have a structure in which there is no gap. In this case, the connection fastener 38 and the connection cord are connected by connecting the connection cord 37 to the ring. 37 can also be connected.

  One or more fabric connection tapes 30 are sewn to the first fabric 10 so that the fabric connection member 35 is in a predetermined position. The number of the dough connecting tapes 30 varies depending on the horizontal width of the first dough 10 when it is attached as a curtain. Normally, when the fabric connecting tape 30 is attached as a curtain, it is sewn so as to extend in the vertical direction. At this time, the fabric connecting tape 30 is sewn so that the horizontal interval is about 20 to 80 cm, preferably about 40 to 60 cm. Moreover, it is preferable that the horizontal intervals of the dough-connecting tape 30 be equal intervals in order to move the curtain up and down uniformly and from the viewpoint of design.

  The first fabric 10 and the second fabric 20 are connected via a fabric connection tape 30 as shown in FIG. The second fabric has a small hole 21 at a position corresponding to at least one or more fabric connection member coupling portions 36. The “position corresponding to the fabric connecting member connecting portion 36” means that when the first fabric 10 and the second fabric 20 are stacked to form a predetermined curtain, the belt connecting member 31 is connected to the fabric connecting member connecting portion. The position of the small hole 21 is such that the connection string 37 connected at 36 can be inserted into the small hole 21 and the connection fastener 38 can be attached to the connection string 37.

  The connecting string 37 of the cloth connecting tape 30 is inserted into the small hole 21 of the second cloth 20 so that the connecting string 37 penetrates the small hole 21. Then, by attaching the connection fastener 38 to the connection string 37, the connection fastener 38 and the connection string 37 are coupled. As a result, the second fabric 20 is disposed between the first fabric 10 and the connection clip 38, and the first fabric 10 and the second fabric 20 are connected. The small holes 21 do not necessarily have to be arranged at positions corresponding to all the cloth connecting member connecting portions 36, and the connection between the first cloth 10 and the second cloth 20 is ensured, and the lifting cord 3 is ring-shaped. It is sufficient that the number is sufficient to achieve the purpose of being inserted into the connecting fastener 38. Therefore, the second fabric 20 only needs to have at least one small hole 21 at a predetermined position.

  Next, description will be made on setting the shortest distance d between the tape sewing position 11 and the fabric connecting member connecting portion 36 to a predetermined length.

  In the conventional curtain described with reference to FIG. 4, when the tape sewing position 11 is close to the center of the fabric connecting tape 30, the needle hole 12 near the small hole 21 of the second fabric 20 is transmitted through the small hole 21. The transmitted light beam 52 further passes through the needle hole 12. Therefore, in order to prevent the above light leakage, the shortest distance between the tape sewing position 11 where the fabric connecting tape 30 is sewn and joined to the first fabric 10 and the fabric connecting member connecting portion 36 is d. The distance d is 1 mm or more. In order to ensure light leakage prevention, the distance d is preferably 2 mm or more, and more preferably 3 mm or more.

  Since the fabric connecting member connecting portion 36 has a predetermined size, the shortest distance d between the tape sewing position 11 and the fabric connecting member connecting portion 36 is the center of the tape sewing position 11 and the fabric connecting member connecting portion 36. It is slightly shorter than the distance. That is, the distance d corresponds to the shortest distance between the tape sewing position 11 and the outer periphery of the connection string 37.

  As shown in FIGS. 6 and 7A, when there are two tape sewing positions 11, the fabric connecting member connecting portion 36 is separated from either of the tape sewing positions 11 by at least the predetermined distance d. It is necessary to be. Further, the cloth connecting tape for the first cloth 10 does not necessarily need to be linearly sewn, but the cloth connecting member connecting portion 36 does not sew either of the tapes even if it is not sewn linearly. It is necessary to leave at least the predetermined distance d from any position 11.

  By sewing as described above, it is possible to prevent the light beam 52 transmitted through the small hole 21 from further passing through the needle hole 12. If the first fabric 10 is not a light-shielding material, light from the small holes 21 may cause transmission of the attenuated light beam 53, so that light leakage is not completely prevented, but it is constant due to light attenuation. The light leakage prevention effect can be obtained. Further, when the first fabric 10 is a light shielding material, transmission of the attenuated light beam 53 does not occur, so that a complete light leakage prevention effect can be obtained. Therefore, it is preferable that the first fabric 10 is a light shielding material.

  Next, a curtain according to another aspect of the present invention will be described.

  In addition to the predetermined tape sewing position 11 as described above, the curtain according to this aspect further secures the light leakage prevention as shown in FIG. It can be set as the structure which further contains the light-shielding member 40 of a dimension larger than the small hole 21 in the position corresponding to the small hole 21 between the fabrics 10. FIG. The “position corresponding to the small hole 21” means that the light shielding member 40 is incident on the light beam 52 from the small hole 21 when the first cloth 10 and the second cloth 20 are connected to form a predetermined curtain. This is a position that blocks. Since the light shielding member 40 is larger than the small hole 21, the light beam 52 from the small hole 21 can be blocked by placing the light shielding member 40 at a position corresponding to the small hole 21. Since the small hole 21 is disposed at a position corresponding to the cloth connecting member connecting portion 36, the light shielding member 40 and the cloth connecting tape 30 are arranged so as to include the position of the ground connecting member connecting portion 36. Between the two doughs 10.

  As the light shielding material, it is preferable to use a light shielding fabric. Moreover, it is more preferable that the light-shielding fabric is the same fabric as the second fabric 20 from the viewpoint of cost reduction and the like.

  The light shielding member 40 may have any shape as long as it has a size capable of preventing light leakage from the small hole 21 of the second fabric 20. For example, the light shielding member 40 may be a tape-shaped light shielding fabric, similar to the shape of the fabric connecting tape 30. Further, the light shielding member 40 may be a fabric piece of a light shielding fabric having a size sufficient to cover the small hole 21 of the second fabric 20. The size of the light shielding member 40 is larger than the small hole 21, but is preferably 1 mm or more larger than the outer periphery of the small hole 21, and more preferably 2 mm or larger. In order to ensure light shielding, it is preferable to make the shape 3 mm or more larger than the outer periphery of the small hole 21. Moreover, the attachment method of a light-shielding member can be suitably selected, such as adhesion and sewing. However, from the standpoint that a design curtain without stiffness can be obtained and the work becomes easy, the light shielding member 40 is also attached to the first fabric 10 together when the fabric connection tape 30 is sewn. It is preferable to sew. In this case, the light shielding member 40 needs to be large enough to perform the predetermined sewing described above. Further, from the viewpoint of further facilitating sewing, the light shielding member 40 is preferably a tape-shaped light-shielding cloth similar to the shape of the cloth connecting tape 30.

  FIG. 9 is a schematic view including a cross section of a portion where the first fabric 10 is connected to the second fabric 20 as an example of the light-shielding elevating curtain 1 having a structure including the light-shielding member 40. The light shielding elevating curtain 1 further includes a light shielding member 40 between the fabric connecting tape 30 and the first fabric 10. In the case of the curtain of FIG. 9, the light shielding member 40 has a tape shape. Hereinafter, the light-shielding elevating curtain 1 shown in FIG. 9 will be described in more detail.

  In FIG. 9, one or more fabric connecting tapes 30 are sewn together with the light shielding member 40 at the tape sewing position 11 on the surface of the first fabric 10 opposite to the surface facing the interior of the room. The first fabric 10 and the second fabric 20 have substantially the same size and shape, and are overlapped and connected by a fabric connection tape 30 to be used as curtain fabric.

  The second fabric 20 facing the outdoor side when the curtain is installed on the window uses a light-shielding material such as a light-shielding fabric in order to make the curtain light-shielding. The material of the first fabric 10 facing the indoor side may be a light-shielding material such as a light-shielding fabric, or may be a material without light shielding properties. However, in the case of this embodiment, since the light shielding member 40 is provided, the light leakage prevention effect can be obtained even if the material of the first fabric 10 is not a light shielding material. In addition, since the first fabric 10 generally has a design on the surface facing the room, a general fabric having a high degree of freedom in design is used as the first fabric 10. It is preferable to use it.

  As an example of the cloth connecting tape 30, generally, a commercially available tape with the name “ring tape” described above can be used.

  One or more fabric connection tapes 30 are sewn to the first fabric 10 so that the fabric connection member 35 is in a predetermined position. At this time, the light shielding member 40 is placed between the fabric connecting tape 30 and the first fabric 10 and sewn. When the light shielding member has a tape shape, the number of the fabric connecting tapes 30 varies depending on the horizontal width of the first fabric 10 when it is attached as a curtain. Further, the light shielding member 40 is disposed corresponding to the cloth connecting tape 30. Usually, the fabric connecting tape 30 is sewn so as to extend in the vertical direction when attached as a curtain. At this time, the fabric connecting tape 30 is sewn so that the horizontal interval is about 20 to 80 cm, preferably about 40 to 60 cm. Moreover, it is preferable that the horizontal intervals of the dough-connecting tape 30 be equal intervals in order to move the curtain up and down uniformly and from the viewpoint of design. When the light shielding member 40 is a tape-shaped light shielding fabric, it is arranged and sewed in the same manner as the fabric connecting tape 30. Further, when the light shielding member 40 is a fabric piece, sewing is performed so that the fabric pieces of the light shielding member 40 are arranged at positions corresponding to all the small holes 21.

  As shown in FIG. 9, the first fabric 10 and the second fabric 20 are connected via a fabric connection tape 30. The second fabric has a small hole 21 at a position corresponding to at least one or more fabric connection member coupling portions 36. By inserting the connecting string 37 of the dough connecting tape 30 into the small hole 21 of the second cloth 20 and attaching the connecting clip 38 to the connecting string 37, the connecting clip 38 and the connecting string 37 are coupled. As a result, the second fabric 20 is disposed between the first fabric 10 and the connection clip 38, and the first fabric 10 and the second fabric 20 are connected.

  In the structure including the light shielding member 40 of the present invention, in order to reliably prevent light leakage from the needle hole during sewing, it is necessary to set the tape sewing position 11 to a predetermined position as described above. . That is, when the shortest distance between the tape sewing position 11 where the light shielding member 40 is sewn and joined to the first fabric 10 and the fabric connecting member connecting portion 36 is d, the distance d is preferably 1 mm or more. In order to more reliably prevent light leakage, the distance d is more preferably 2 mm or more, and particularly preferably 3 mm or more.

  FIG. 10 is a schematic diagram showing the principle of preventing light leakage in a structure including the light shielding member 40 of the present invention. Compared with FIG. 6, FIG. 10 is different in that a light shielding member 40 made of a light shielding material is further included between the fabric connecting tape 30 and the first fabric 10. Therefore, the light beam 52 emitted from the light source 51 such as the sun cannot pass through the small hole 21 and the needle hole 12 due to the geometrical arrangement of the cloth or the like. Furthermore, the transmission of the attenuated light beam 53 that occurred in the case of FIG. 6 does not occur. Therefore, the curtain having this structure can exhibit a more complete light leakage prevention effect.

  Next, a method for manufacturing the curtain of the present invention will be described.

  First, a method for manufacturing a curtain having a structure in which a sewing position for connecting a plurality of curtain fabrics is a predetermined position will be described. A first fabric 10 and a second fabric 20 having a predetermined size are prepared. Next, a first fabric 10 and a fabric connecting tape 30 having a predetermined length corresponding to the size of the first fabric 10 are prepared, and a predetermined number of fabric connecting tapes 30 are connected to the fabric connecting member. The first fabric 10 is sewn so that the portion is in a predetermined position. At this time, it is a feature of the manufacturing method of the present invention that sewing is performed so that the shortest distance d between the tape sewing position 11 and the fabric connecting member connecting portion 36 is 1 mm or more. In order to ensure light leakage prevention, it is preferable to sew so that the distance d is 2 mm or more, and it is more preferable to sew so that it is 3 mm or more. Next, a small hole 21 is formed at a position of the second fabric 20 corresponding to at least one fabric connection member connecting portion. By inserting the connection string 37 of the fabric connection member 35 into the small hole 21 and attaching the connection clip 38, the fabric portion of the light shielding elevating curtain 1 is completed.

  The fabric part of the light-shielding elevating curtain 1 is attached to the head rail 2 using Velcro (registered trademark) or the like, and the elevating cord 3 is inserted into a ring-shaped connecting clip 38 and connected to the lower part of the curtain to block light. The elevating curtain 1 can be manufactured.

  Next, a method for manufacturing a curtain having a structure including the light shielding member 40 of the present invention will be described. The manufacturing method of the curtain having this structure is basically the same as the manufacturing method described above, but before the step of sewing and joining the fabric connecting tape 30 to the first fabric 10, the fabric connecting tape. The difference is that the method further includes a step of arranging a light shielding member 40 made of a light shielding material between the first fabric 10 and the first fabric 10. Therefore, when the fabric connecting tape 30 and the first fabric 10 are sewn, the light shielding member 40 sandwiched between the fabric connecting tape 30 and the first fabric 10 is also sewn together. At this time, it is preferable that the sewing is performed so that the shortest distance between the tape sewing position 11 and the fabric connecting member connecting portion 36 is 1 mm or more, as in the case described above. In order to ensure light leakage prevention, it is preferable to sew so that the distance d is 2 mm or more, and it is more preferable to sew so that it is 3 mm or more.

  As shown below, the curtain of the present invention was prototyped and the light shielding performance was clarified by taking a photo of a light leakage test. In this embodiment, the light shielding grade of the light shielding fabric is a light shielding grade determined by the Japan Interior Fabrics Association.

Comparative Example First, as a comparative example, a plain-style curtain having a conventional structure was prototyped. That is, the structure of the curtain of the comparative example is that the first fabric is a general curtain surface fabric with no light shielding property, the second fabric is a light shielding fabric (light shielding grade 1), and the ring tape is a fabric connecting tape in this order. It was assumed that everything was sewn side by side. As a light leakage test of the curtain of this comparative example, FIG. 11 shows a photograph of the opposite surface when light is applied to one surface of the curtain. As shown in this figure, light leaked from the needle hole during sewing. In addition, the surface of the fabric became bright enough to be visible due to the leaked light.

Example 1
A plain-style curtain having the structure shown in FIG. A general curtain surface fabric having no light shielding property was used as the first fabric, a light shielding fabric (light shielding grade 1) was used as the second fabric, and a ring tape was used as the fabric connecting tape. The first cloth and the cloth connecting tape were sewn so that the shortest distance d between the tape sewing position and the cloth connecting member connecting portion was 1 mm. As a light leakage test of the curtain of Example 1, a photograph of the opposite surface when one surface of the curtain is irradiated with light is shown in FIG. Although some light leakage occurred from the first fabric as shown in this figure, the light leakage was greatly reduced as compared with the comparative example.

Example 2
A plain-style curtain having the structure shown in FIG. 9, which is a curtain having a structure including the light-shielding member 40 of the present invention, was prototyped as Example 2. A general curtain surface fabric having no light shielding property was used as the first fabric, a light shielding fabric (light shielding grade 1) was used as the second fabric, and a ring tape was used as the fabric connecting tape. Further, as the light-shielding member, the same light-shielding fabric (light shielding grade 1) as that of the second fabric was used in a tape shape, and was placed between the curtain surface fabric and the ring tape and sewn. The sewing position of the first cloth, the light shielding member and the cloth connecting tape was set such that the shortest distance d between the tape sewing position and the cloth connecting member connecting portion was 1 mm. As a light leakage test of the curtain of Example 2, a photograph of the opposite surface when one surface of the curtain is irradiated with light is shown in FIG. As shown in this figure, no light leakage occurred in the curtain of Example 2.

It is a schematic diagram of the side (front side) facing the inside of a room of a plain-style light-shielding elevating curtain. It is a schematic diagram of the side (back side) facing out of a window of a plain-style light-shielding elevating curtain. It is a schematic diagram including the cross section of the part which connects the 1st fabric to the 2nd fabric of the conventional light shielding elevating curtain of the plain style. It is a principle schematic diagram of light leakage of a conventional plain style light shielding curtain. It is a schematic diagram including the cross section of the part which connects the 1st fabric to the 2nd fabric of the conventional light shielding elevating curtain of the plain style. It is a principle schematic diagram which shows the sewing position of the light-shielding raising / lowering curtain of this invention. It is a schematic diagram of the tape for cloth connection, (A) is a schematic front view, (B) is a schematic cross-sectional view near the center. It is a schematic diagram which shows the structure of the light-shielding curtain of this invention. It is a schematic diagram including the cross section of the part which connects the 1st fabric to the 2nd fabric of the light-shielding curtain of this invention. It is a principle schematic diagram of light leakage prevention of the light-shielding curtain of this invention. It is a photograph of the light leakage test of the curtain of a comparative example. It is a photograph of the light leakage test of the curtain of Example 1. It is a photograph of the light leakage test of the curtain of Example 2.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Light-shielding raising / lowering curtain 2 Head rail 3 Lifting code 4 Operation code 5 Weight bar pocket 10 First cloth 11 Tape sewing position 12 Needle hole 20 Second cloth 21 Small hole 30 Fabric connection tape, ring tape 31 Band-shaped member 32 Reinforcing part 33 Center of band-shaped member 35 Fabric connecting member 36 Fabric connecting member connecting unit 37 Connecting string 38 Connecting fastener, ring 40 Light shielding member 51 Light source 52 Beam 53 Attenuated beam d Tape sewing position and fabric connecting member connecting unit Shortest distance

Claims (8)

The first dough,
A second fabric made of a light-shielding fabric, overlaid with the first fabric,
One or more fabric connecting tapes that are sewn and joined to the first fabric for connecting the first fabric and the second fabric,
The cloth connecting tape includes a belt-shaped member and one or more cloth connecting members that are coupled to a surface of the cloth connecting member coupling portion opposite to the first cloth of the belt-shaped member,
The second fabric has a small hole at a position corresponding to at least one fabric connection member coupling portion;
At least a part of the fabric connecting member is a plain-style light-shielding elevating curtain that connects the first fabric and the second fabric by penetrating the small hole,
A light-shielding elevating curtain in which the shortest distance between a tape sewing position where the fabric connecting tape is sewn and joined to the first fabric and the fabric connecting member connecting portion is 1 mm or more.   The light-shielding elevating curtain according to claim 1, further comprising a light-shielding member made of a light-shielding material larger than the small hole at a position corresponding to the small hole between the cloth connecting tape and the first cloth. The first dough,
A second fabric made of a light-shielding fabric, overlaid with the first fabric,
One or more fabric connecting tapes that are sewn and joined to the first fabric for connecting the first fabric and the second fabric,
The cloth connecting tape includes a belt-shaped member and one or more cloth connecting members that are coupled to a surface of the cloth connecting member coupling portion opposite to the first cloth of the belt-shaped member,
The second fabric has a small hole at a position corresponding to at least one fabric connection member coupling portion;
At least a part of the fabric connecting member is a plain-style light-shielding elevating curtain that connects the first fabric and the second fabric by penetrating the small hole,
A light-shielding elevating curtain further including a light-shielding member made of a light-shielding material larger than the small hole at a position corresponding to the small hole between the fabric connecting tape and the first fabric.   The light shielding elevating curtain according to claim 2 or 3, wherein the light shielding member is a tape-shaped light shielding fabric.   The dough connecting member includes a connecting string and a connecting clasp, the connecting string is coupled to the belt-shaped member at the dough connecting member connecting portion, and the connecting clasp sandwiches the second dough from the first dough. The light-shielding elevating curtain according to claim 1, wherein the light-shielding elevating curtain is on the opposite side and connected to the connecting string. The first dough,
A second fabric made of a light-shielding fabric, overlaid with the first fabric,
One or more fabric connecting tapes that are sewn and joined to the first fabric for connecting the first fabric and the second fabric,
The cloth connecting tape has one belt-like member, and one or more cloth connecting members that are connected to a surface of the cloth connecting member connecting portion opposite to the first cloth of the belt-like member,
The second fabric has a small hole at a position corresponding to at least one fabric connection member coupling portion;
At least a part of the fabric connecting member is a method for manufacturing a plain-style light-shielding elevating curtain that connects the light-shielding elevating curtain and the second fabric by penetrating the small hole,
The fabric connection tape is sewn to the first fabric so that the shortest distance between the tape sewing position where the fabric connection tape is sewn and joined to the first fabric and the fabric connection member connecting portion is 1 mm or more. The manufacturing method of a light-shielding raising / lowering curtain including the process to join.   Before the step of sewing and joining the fabric connecting tape to the first fabric, a light-shielding material larger than the small hole is placed between the fabric connecting tape and the first fabric at a position corresponding to the small hole. The manufacturing method of the light-shielding raising / lowering curtain of Claim 6 which further includes the process of arrange | positioning the light-shielding member which becomes.   The manufacturing method of the light-shielding raising / lowering curtain of Claim 7 whose light-shielding member is a tape-shaped light-shielding cloth.