JP7168466B2 - screen and screen equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a screen and a screen device used as a sunshade or a screen door for a building.

Screens serving as sunshades and blinders are sometimes installed on the windows and terraces of buildings such as houses and shops. A screen of this type has a structure in which warps and wefts are plain-woven (for example, see Patent Document 1).

JP 2014-224374 A

For screens such as those mentioned above, it is desirable to configure the exterior surface of the building with different colors from the interior surface in consideration of the external appearance of the building, the performance of blinding from the exterior, and the visibility from the interior. I have a request. Conventionally, when changing the color of both sides of the screen, colored PVC (polyvinyl chloride) coating or the like is applied to the surface of the fabric. However, since such a coating agent contains oil in the plasticizer, there is a concern that the surface of the screen may be stained with oil and may degrade product quality. In addition, since a coating process is required for the fabric, work costs and material costs increase.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a screen and a screen device capable of reducing costs while ensuring high product quality.

The screen according to the present invention is a screen formed by weaving warps and wefts, wherein the warps and wefts are formed in different colors, and one side of the warp and the weft is woven. The exposed ratio is large, and on the other side, the exposed ratio of the other of the warp yarns and the weft yarns is higher than the exposed ratio of the one surface.

According to the present invention, even if the screen has a one-and-one two-color structure, it is possible to reduce costs while ensuring high product quality.

1 is a side view schematically showing a state in which a screen device using a screen according to one embodiment of the present invention is installed in a building; FIG. FIG. 2A is a schematic diagram of the screen viewed from one side, and FIG. 2B is a schematic diagram of the screen viewed from the other side. FIG. 3(A) is a schematic view of the screen having auxiliary wefts as viewed from one side, and FIG. 3(B) is a schematic view of the screen having auxiliary wefts as viewed from the other side. . FIG. 4 is a schematic cross-sectional view of the screen shown in FIG. 3 cut in a direction orthogonal to the longitudinal direction of warps; FIG. 10 is a schematic view of another side of the screen having a configuration in which auxiliary wefts are provided; 1 is a schematic front view of a screen device using a screen as a roll screen door; FIG. FIG. 7 is a schematic cross-sectional view of a bottom bar of the screen device shown in FIG. 6;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the screen according to the present invention will be described in detail by exemplifying a screen device using the same and citing preferred embodiments, with reference to the accompanying drawings.

FIG. 1 is a side view schematically showing a state in which a screen device 12 using a screen 10 according to one embodiment of the present invention is installed in a building 14. FIG. In the present embodiment, the screen 10 is movably provided on the outdoor side of the window 14a of the building 14 such as a house or a store, and functions as a sunshade that shields the window 14a from sunlight. The screen 10 can also be used as a roll screen that moves up and down on the indoor side of the window 14a to block sunlight, a screen door that prevents dust and insects from entering through the open window 14a, and the like.

As shown in FIG. 1, the screen device 12 includes a roll 16 capable of winding and feeding the screen 10, and a main box 18 that houses the roll 16. As shown in FIG. The screen device 12 can cover the outdoor side of the window 14a by pulling out the screen 10 downward from a main body box 18 attached to the upper outer wall surface of the window 14a. The roll 16 is elastically biased in the direction of rotation in which the screen 10 is wound. The bottom end of the screen 10 pulled out from the roll 16 can be locked to the floor surface 14b of a terrace or the like using a hook 20, for example. As a result, the screen 10 receives tension in the winding direction from the roll 16 at the upper end while the lower end is supported by the hooks 20, so that the screen 10 can be stretched vertically with sufficient tension without slack.

FIG. 2A is a schematic diagram of the screen 10 viewed from one side 10a, and FIG. 2B is a schematic diagram of the screen 10 viewed from the other side 10b. As shown in FIGS. 2A and 2B, the screen 10 is a net formed by weaving the warp threads 24 and the weft threads 22 in a mesh shape, and the warp threads 24 and the weft threads 22 are of different colors. formed. As shown in FIG. 1 , the screen 10 has one surface 10 a arranged on the outside of the building 14 and another surface 10 b arranged on the indoor side of the building 14 .

The warp yarns 24 are yarns extending along the winding direction and the sending direction with respect to the roll 16 . The weft yarns 22 are yarns extending along a direction perpendicular to the warp yarns 24 . That is, in the screen device 12 shown in FIG. 1, the warp yarns 24 extend in the vertical direction of the screen 10 drawn from the roll 16, and the weft yarns 22 extend in the horizontal direction (width direction). In the present embodiment, the warp 24 and the weft 22 are monofilament threads obtained by extruding two layers of polypropylene having a low melting point of about 130 (° C.) around polypropylene having a high melting point of about 165 (° C.). , warp yarns 24 and weft yarns 22 are fused together at overlapping weaves 26 and intersections 28 . By using monofilament yarns, the weight of each yarn 22, 24 can be reduced. By fusing the intersections 28 and the like, it is possible to prevent the texture 26 and the threads 22 and 24 from being displaced in the product, and to reduce the thickness of the screen 10 itself. The diameters of the warp yarns 24 and the weft yarns 22 are, for example, approximately 0.10 to 0.50 (mm). In this embodiment, the diameter of the warp yarns 24 is 0.15 (mm), and the diameter of the weft yarns 22 is 0.30 (mm). 2(A) and 2(B), the shape of the warp 24 and the weft 22 are exaggerated, but in the actual product, for example, the warp 24 and the weft 22 are 20 in 1 inch square. About 100 are provided. Various additives such as ultraviolet absorbers, light stabilizers, antioxidants, lubricants, antistatic agents, and flame retardants may be added to the warp yarns 24 and the weft yarns 22 .

As shown in FIG. 2(A), on the one side 10a, the warp yarns 24 are arranged on the back side of the weft yarns 22 except for the texture 26, and the weft yarns 22 are woven with the warp yarns 24 while straddling the four warp yarns 24. there is That is, the weaves 26 are arranged along the longitudinal direction of the weft yarns 22, and the interval between them is four warp yarns 24. As shown in FIG. Therefore, the exposed ratio (surface area) of the weft yarns 22 is larger than the exposed ratio of the warp yarns 24 on the one surface 10a. Especially in the case of this embodiment, the weft 22 is thicker than the warp 24 . As a result, the ratio of the exposed weft yarns 22 to the exposed area of the warp yarns 24 and the weft yarns 22 is set to be about 70% on the one surface 10a.

As shown in FIG. 2B, on the other side 10b, the weft 22 is arranged on the back side of the warp 24 except for the texture 26, and the warp 24 is woven with the weft 22 while straddling the four wefts 22. ing. That is, the weaves 26 are arranged along the longitudinal direction of the warp yarns 24, and the interval between them is four weft yarns 22. As shown in FIG. For this reason, the exposed ratio (surface area) of the warp yarns 24 on the other surface 10b is larger than the exposed ratio on the one surface 10a. It is set to be approximately

The number of weft yarns 22 straddling the warp yarns 24 on one side 10a may be two or more by a weaving method called twill or satin weave. There is a concern that the warp yarns 24 and the weft yarns 22 may be misaligned before the wearing process. Therefore, the weft 22 preferably straddles every three to five warps 24, and most preferably straddles every four warps 24 as described above. The same applies to the number of warp yarns 24 straddling the weft yarns 22 on the other surface 10b.

Thus, in the screen 10, the weft yarn 22 straddles a plurality of warp yarns 24 on one surface 10a, and the warp yarn 24 straddles a plurality of weft yarns 22 on the other surface 10b. Therefore, the texture 26 does not continue in the longitudinal direction of the warp 24 between the adjacent wefts 22 , 22 , and the thickness of the layer when wound on the roll 16 is reduced. In particular, in the case of this embodiment, between the adjacent wefts 22, 22, the texture 26 of the weft 22 and the warp 24 is displaced in the longitudinal direction of the weft 22. Specifically, the texture 26 is the warp. 24 are shifted in order. For this reason, as shown in FIGS. 2(A) and 2(B), the weaves 26 are arranged obliquely and regularly. Since the positions of the weft yarns 22 are sequentially shifted in the longitudinal direction of the weft yarns 22 without any movement, the lamination thickness is further reduced. The effect of reducing the laminated thickness is not limited to the screen device 12 having a roll structure and the roll screen door as shown in FIG. In other words, even for a screen door with a general structure in which the screen is fixed to the frame, the screen is wound and stored and transported at the time of manufacture, so the effect of reducing the laminated thickness when it is wound is not noticeable during storage and transport. is effective.

As described above, in the screen 10, the warp threads 24 and the weft threads 22 are formed in different colors, and are colored by, for example, dyeing or dope dyeing. Specifically, the warp yarns 24 and the weft yarns 22 have a color difference at a level at which the difference in color can be discerned with the naked eye, for example, a color difference ΔE of 3 or more (L*a*b color system), preferably about 4 to 15. have. In the screen 10 of the present embodiment, the color of the weft yarns 22 whose exposure ratio is high on the outdoor surface 10a is set to a higher brightness than the color of the warp yarns 24 whose exposure ratio is high on the other indoor surface 10b. For example, the warp yarns 24 are black and the weft yarns 22 are gray, light gray, cream, beige, green, brown, or any other color. As a result, the one side 10a has a bright color in which the color of the weft yarn 22 strongly appears, and the other side 10b has a dark and dark color in which the color of the warp yarn 24 appears strongly.

Therefore, the screen 10 can be configured in different colors without coloring the one surface 10a and the other surface 10b with a coating agent as in the conventional art. For this reason, the screen 10 can prevent quality deterioration such as color change and dirt adhesion due to the oil contained in the coating agent, ensuring high product quality, and also enables cost reduction by omitting the coloring process and not using the coating agent. becomes. Moreover, the screen device 12 using the screen 10, as shown in FIG. On the other hand, the darker side 10b suppresses the reflection of light to the inside of the room and makes it easy to see through the outside, and the same effect can be expected when the screen 10 is used as a screen door.

In the screen 10, the warp yarns 24 along the winding direction around the roll 16 are composed of yarns thinner than the weft yarns 22. - 特許庁For this reason, the thickness of the laminate when wound on the roll 16 is further reduced, and the winding force on the roll 16 is reduced, thereby smoothing the winding itself. Moreover, in the screen 10, the weft yarns 22 extending in the left-right direction perpendicular to the delivery direction from the rolls 16 and to which tension from the rolls 16 is not applied are composed of yarns thicker than the warp yarns 24. - 特許庁Therefore, the tension (rigidity) of the weft 22 itself can be sufficiently secured, and the tension can be stretched not only in the vertical direction along the warp 24 but also in the horizontal direction along the weft 22 without loosening or bending during use as shown in FIG. can.

By the way, in the screen 10 of this embodiment, the wefts 22 are made thicker than the warp 24, so the gap C1 between the adjacent wefts 22 tends to be larger than the gap C2 between the adjacent warps 24,24. be. Therefore, in order to prevent the wide gap C1 from lowering the shielding performance, the screen 10 may have a configuration in which another weft (auxiliary weft 30) is added to the gap C1.

FIG. 3A is a schematic view of the screen 10 provided with the auxiliary weft 30 viewed from one side 10a, and FIG. It is a schematic diagram of what I saw. FIG. 4 is a schematic cross-sectional view of the screen 10 shown in FIG. 3 cut in a direction orthogonal to the longitudinal direction of the warp yarns 24. As shown in FIG. In the screen 10 shown in FIGS. 3 and 4, the same reference numerals as those of the screen 10 shown in FIGS. 1 and 2 indicate the same or similar configurations, and therefore have the same or similar functions and effects. A detailed description is omitted as a function of this function, and the same applies to the screen 10 shown in FIG. 5, which will be described later.

As shown in FIGS. 3A and 3B, the auxiliary weft 30 extends parallel to the weft 22 and is arranged to fill the gap C1 between the wefts 22,22. The auxiliary weft 30 is arranged on the back side of the warp 24 when viewed from the one surface 10a, for example, and is woven with the warp 24 while straddling a plurality of warps 24 (four in FIG. 3) like the weft 22. . That is, the stitches 32 of the auxiliary weft 30 and the warp 24 are arranged along the longitudinal direction of the auxiliary weft 30 with an interval corresponding to four warps 24 . The spacing of the weaves 32 may be varied in the same manner as for the weaves 26 described above.

In this embodiment, the auxiliary wefts 30 are the same as the warp 24, that is, have the same shape and color as the warp 24. As shown in FIG. The auxiliary wefts 30 may be of a different shape and color than the warp yarns 24 . However, since the auxiliary weft 30 is for closing the gap C1 and enhancing the shielding performance of the screen 10, black which is the same color as the warp 24, or an equivalent color which looks almost the same, such as dark gray, is preferable. Since the auxiliary weft 30 merely fills the gap C1, it hardly affects the color of the one surface 10a.

The auxiliary weft 30 closes the gap C1 and constructs a sandwich structure in which the warp 24 is sandwiched between the auxiliary weft 30 and the weft 22 as shown in FIG. Therefore, the provision of the auxiliary weft yarns 30 in the screen 10 also has the effect of reliably preventing the warp yarns 24 and the weft yarns 22 from being misaligned before the fusing step.

As shown in FIG. 5, the screen 10 may be configured by adding another weft (auxiliary weft 34) in place of or in combination with the auxiliary weft 30 shown in FIG. The auxiliary weft 34 is arranged, for example, on the front side of the weft 22 (and the warp 24) when viewed from the other side 10b, that is, on the back side of the weft 22 (and the warp 24) when viewed from the one side 10a. are woven with the warp yarns 24 while straddling a plurality of warp yarns 24 (four in FIG. 5). Therefore, the stitches 36 of the auxiliary weft 34 and the warp 24 are arranged along the longitudinal direction of the auxiliary weft 34 with an interval corresponding to four warps 24 . The spacing of the weaves 36 may be varied in the same manner as the weaves 26, 32 described above.

In this embodiment, the auxiliary wefts 34 are the same as the warp 24, that is, have the same shape and color as the warp 24. As shown in FIG. The auxiliary wefts 34 may have a shape and color different from those of the warp yarns 24, but black, which is the same color as the warp yarns 24, or an equivalent color, such as dark gray, which looks substantially the same as the warp yarns 24, is preferable. As a result, in the screen 10, the auxiliary weft 34 hides the exposure of the weft 22 on the other surface 10b, and at the same time increases the exposure ratio of the same color as the warp 24, so that the reflection of light to the indoor side on the other surface 10b is further suppressed. be done. In the configuration example shown in FIG. 5, the exposure ratio of the warp yarns 24 and the auxiliary weft yarns 34 is set to about 70% with respect to the exposed area of the warp yarns 24, the weft yarns 22 and the auxiliary weft yarns 34 on the other surface 10b. . Of course, even in the configuration using the auxiliary weft 34, a sandwich structure is constructed in which the warp 24 is sandwiched between the weft 22 and the weft 22 in substantially the same manner as in the case of the auxiliary weft 30 shown in FIG. It is also possible to obtain the effect of more reliably preventing the positional deviation of the .

When the screen 10 as described above is used as a sunshade as shown in FIG. It is set to about 15%. Therefore, when constructing this opening ratio of 5 to 15% with warp yarns 24 with a diameter of 0.15 (mm) and weft yarns 22 with a diameter of 0.30 (mm), there are about 50 to 90 warp yarns 24 per inch square. Approximately 20 to 70 wefts 22 are provided in a square of 1 inch for weaving. Substantially similarly, when the screen 10 is used as a screen door, the aperture ratio is set to, for example, about 60 to 80%, and the warp yarns 24 and the weft yarns 22 are woven with a number and spacing that can ensure this aperture ratio.

As shown in FIG. 6, a screen device 12A using the screen 10 as a roll-type screen door includes an opening frame 40 fixed to the building 14, and a frame body supported by the opening frame 40 and supporting a shoji (not shown) so that it can be opened and closed. 42. The screen 10 is a roll screen door that shields the opening of the frame 42 so that it can be opened and closed. The screen 10 can be drawn downward from the roll 16 attached to the upper frame 42 a of the frame 42 . A bottom bar 44 extending in the width direction is attached to the lower end of the screen 10 . The bottom bar 44 is slidable up and down in the opening of the frame body 42 by being guided by vertical rails formed on the frame inner surfaces of the left and right vertical frames 42b and 42c at both left and right ends. Reference numeral 46 in FIG. 6 denotes a ball chain operated when the screen 10 is raised and lowered.

As shown in FIG. 7, the bottom bar 44 has a main body 48 and a holding portion 50. As shown in FIG. The main body 48 and the holding portion 50 are extruded profiles made of a metal material such as aluminum, and are integrally formed. The main body 48 has a groove portion 48b in which the upper surface 48a is open along the longitudinal direction, and a hollow portion 48c formed below the groove portion 48b.

The holding portion 50 is provided inside the groove portion 48 b and is a portion that holds the lower end portion of the screen 10 . A tubular portion 52 sewn into a tubular shape is formed at the lower end portion of the screen 10 . A screen door rope 54 is included inside the cylindrical portion 52 . The screen door rope 54 is a resin member that functions as a core material that keeps the lower end of the screen 10 straight, and has an outer diameter of, for example, about 3 mm. The holding portion 50 has an opening portion 50a and a housing portion 50b, and has a substantially C-shaped cross section. The opening 50 a extends in the longitudinal direction of the bottom bar 44 . The opening 50a allows the screen 10 to pass therethrough and has a width dimension narrower than the outer diameter of the tubular portion 52 . The tubular portion 52 is inserted along the longitudinal direction into the accommodating portion 50b. As a result, the screen 10 is connected to the bottom bar 44 by retaining the cylindrical portion 52 in the accommodating portion 50b while the sheet portion of the screen 10 is passed through the opening of the upper surface 48a and the opening 50a.

Therefore, this screen device 12A is, for example, like a conventional roll-type screen door, in which an inner rail is joined to the main body of the bottom bar by fixing the lower end of the screen with a fastener tape, thereby connecting the screen and the bottom bar. Since the lower end of the screen 10 is directly engaged with the bottom bar 44, the structure is simplified and the number of parts can be reduced compared to the connected structure. The connection structure between the bottom bar and the screen shown in FIG. 7 can also be used for a screen having a different weave than the screen 10 shown in FIGS. The bottom bar 44 having the structure shown in FIG. 7 may be applied to the screen 10 of the screen device 12 whose lower end is locked by the hooks 20 as shown in FIG.

The screen according to the present invention is a screen formed by weaving warps and wefts, wherein the warps and wefts are formed in different colors, and one side of the warp and the weft is woven. The exposed ratio is large, and on the other side, the exposed ratio of the other of the warp yarns and the weft yarns is higher than the exposed ratio of the one surface. According to such a configuration, since the exposed ratio of the warp and weft yarns of different colors is different between one surface and the other surface, for example, the color of the weft is strong on one surface, and the color of the warp is strong on the other surface. It becomes a different color structure composed of the colors that appear. Therefore, both sides can be configured in different colors without coloring one side or the other side using a coating agent. As a result, it is possible to prevent quality deterioration such as contamination due to oil contained in the coating agent, thereby ensuring high product quality, and also to reduce costs by omitting the coloring process and not using the coating agent.

In the screen according to the present invention, the one thread may have a higher brightness than the other thread. Then, for example, when one side is arranged facing the outdoor side of the building and the other side is arranged facing the indoor side of the building, the color of the one side arranged on the outdoor side is brighter than the color of the other side arranged on the indoor side. becomes color. As a result, when the screen is used as a sunshade or a screen door in a building, the bright-colored outdoor surface not only improves the appearance quality, but also effectively reflects sunlight from the outdoors and shields the room. In addition, the blinding performance is improved, and on the other side of the dark indoor side, the reflection of light to the indoor side is suppressed, and the outdoor can be easily seen through.

In the screen according to the present invention, on the one surface, the one yarn is woven while straddling a plurality of the other yarns, and on the other surface, the other yarn straddles a plurality of the one yarns. It may be a woven configuration. By doing so, the ratio of exposed warp and weft yarns of different colors can be made different between one side and the other side in the weaving process, thereby improving manufacturing efficiency.

In the screen according to the present invention, the one thread may be the weft thread, the other thread may be the warp thread, and the diameter of the weft thread may be larger than the diameter of the warp thread. In this case, the weft yarns having a large exposed ratio on the one surface arranged on the outdoor side become thicker than the warp yarns, so that the one surface of the desired color in which the hue of the weft yarns is further emphasized can be formed.

In the screen according to the present invention, an auxiliary weft having the same color as the warp may be provided between the adjacent wefts or on the other side of the weft. Then, the gap between the wefts and the other side of the weft can be hidden by the auxiliary weft, and the shielding performance of the screen can be improved and the color of the other side can be made more uniform.

A screen device according to the present invention includes the screen having the above configuration and a roll capable of winding and feeding the screen, and the roll winds and feeds the screen along the longitudinal direction of the warp. characterized by According to such a configuration, a screen device can be obtained in which one surface and the other surface are configured in different colors. Moreover, in this screen device, if the warp is made thinner than the weft, for example, as described above, not only is the winding on the roll smooth, but also the tension due to the rigidity of the thick weft when the screen is expanded causes the screen itself to be stretched. tension in the lateral width direction is applied to suppress loosening and bending.

In the screen device according to the present invention, a bottom bar is attached to the lower end of the screen. The bottom bar includes a main body having a groove with an open upper surface, and a main body provided inside the groove. The screen has a cylindrical portion sewn into a cylindrical shape and includes a core material inside at its lower end, and the holding portion has a width greater than that of the cylindrical portion. A narrow opening through which the screen is passed and an accommodating portion in which the cylindrical portion is accommodated may be provided. By doing so, it is possible to reduce the number of parts in the bottom bar and its periphery in the screen device.

It goes without saying that the present invention is not limited to the above-described embodiments, and can be freely modified without departing from the gist of the present invention.

For example, in the above-described embodiment, the exposed ratio of the weft yarns 22 is increased on the one surface 10a arranged on the outdoor side of the building 14, and the exposed ratio of the warp yarns 24 is increased on the other surface 10b. The exposed ratio may be increased, and the exposed ratio of the warp yarns 24 may be increased on the one surface 10a, or the exposed ratio of the warp yarns 24 on the other surface 10b may be larger than the exposed ratio of the weft yarns 22. Also, the warp threads 24 may be set to a brighter color than the weft threads 22 .

10 screen, 10a one side, 10b other side, 12, 12A screen device, 14 building, 14a window, 14b floor, 16 roll, 18 main body box, 22 weft, 24 warp, 26, 32, 36 texture, 28 intersection, 30, 34 auxiliary weft, 44 bottom bar, 48 main body, 50 holding part, 52 cylindrical part, 54 screen door rope

Claims (3)

A screen formed by weaving warp and weft,
The warp and the weft are formed in different colors,
On one side, one of the warp and the weft has a large exposed ratio, and on the other side, the other of the warp and the weft has a higher exposed ratio than the exposed ratio on the one side,
A screen, characterized in that an auxiliary weft having the same color as that of the warp is provided between the adjacent wefts or on the other side of the weft. A screen according to claim 1 and a roll capable of winding and delivering the screen,
A screen device, wherein the roll winds and feeds the screen along the longitudinal direction of the warp. The screen device according to claim 2 ,
a bottom bar attached to the lower end of the screen;
The bottom bar has a main body in which a groove with an open upper surface is formed, and a holding part provided inside the groove for holding the lower end of the screen,
The screen is sewn into a tubular shape and has a tubular portion containing a core material at the lower end,
The screen device, wherein the holding portion is narrower than the cylindrical portion and has an opening through which the screen is passed and a housing portion for housing the cylindrical portion.

Images