JP2013183101A - Taking-up type photovoltaic power generation sheet, and taking-up type blind apparatus using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decrease taking-up diameter of a photovoltaic power generation sheet and to make the photovoltaic power generation sheet hard to be damaged by bending at the time of taking up.SOLUTION: A photovoltaic power generation sheet 55 includes a flexible base sheet 50 that can be taken up on a roller 2, a plurality of flexible square solar cell films 51 which are provided on the base sheet 50 and have at least such a size as can be arrayed by a plurality of numbers in the length direction of the base sheet 50, and a first wiring for collecting outputs of the solar cell film 51. The solar cell films 51 are at least arrayed in length direction of the base sheet 50 with an interval. A blank region 53 where no solar cell film 51 is present extending over the entire width of the base sheet 50 is provided by a plurality of numbers in the length direction of the base sheet 50 with an interval. Further, a taking-up type blind apparatus uses a photovoltaic power generation sheet as a blind screen, and includes a second wiring for taking out an output of the solar cell film from the taking-up type photovoltaic power generation sheet.

Description

  The present invention relates to a wind-up type photovoltaic power generation sheet that is housed in a manner to be wound around a roller and that is pulled out from the roller and spreads in use, and a roll-type sunshade such as a roll screen device or an awning that uses this as a sunscreen. Relates to the device.

  There is a roll screen device in which a solar cell film is provided on a rollable screen, and the solar cell film is spread together with the screen during use to generate electricity while being shaded (for example, Patent Document 1). This roll screen device is shown in FIGS. In this roll screen device, a solar cell film 101 having a length substantially the same as that of the screen 102 is used, and is wound around a roller 103 together with the screen 102 when not in use.

JP 2008-42142 A

  However, in the above roll screen device, the solar cell film 101 is wound together with the screen 102. Therefore, even if the solar cell film 101 can be wound in a film form, The winding diameter cannot be reduced as in the case of winding a battery film having no battery film. In addition, if the winding diameter is forcibly reduced in order to wind it small, the solar cell film 101 is forcibly bent, and the solar cell film 101 may be damaged.

  The present invention provides a take-up type solar power generation sheet that can reduce the take-up diameter and that is less susceptible to damage caused by bending during winding, and a take-up type sunshade device using the same. For the purpose.

  In order to achieve such an object, a wind-up photovoltaic power generation sheet according to claim 1 is provided on a flexible base sheet that can be wound around a roller, on the base sheet, and at least in the length direction of the base sheet. A plurality of flexible solar cell films of a size that can be arranged in a row, and a first wiring that collects the output of the solar cell film, the solar cell film being spaced at least in the length direction of the base sheet The blank area | region without the solar cell film covering the full width of a base sheet is provided in multiple numbers at intervals in the length direction of the base sheet.

  The wind-up photovoltaic sheet according to claim 2 has a rectangular shape, and a plurality of solar cell films are arranged in the width direction of the base sheet to form a row, and the row is a base with a blank region in between. A plurality of sheets are arranged in the length direction of the sheet, and the solar cell films are arranged at intervals in the row.

  Further, in the wind-up type solar power generation sheet according to claim 3, the solar cell films are arranged so as to be shifted by 1/2 in the width direction of the base sheet in the front and rear rows.

  Moreover, the wind-up type photovoltaic power generation sheet according to claim 4 is provided with a blindfold on a part corresponding to a part between the solar cell films of the base sheet.

  Moreover, the winding type solar power generation sheet of Claim 5 makes the base sheet transparent or translucent.

  Further, in the wind-up type photovoltaic power generation sheet according to claim 6, some of the solar cell films are replaced with a flexible screen piece having the same thickness as the solar cell film. It is what.

  Further, in the wind-up type photovoltaic power generation sheet according to claim 7, the screen piece transmits light.

  Furthermore, the wind-up type solar shading device according to claim 8 uses the wind-up type solar power generation sheet according to any one of claims 1 to 7 as a screen for sunshading, and wind-up type solar power generation. A second wiring for taking out the output of the solar cell film from the sheet is provided.

  In the wind-up type photovoltaic power generation sheet according to claim 1, a plurality of blank regions without a solar cell film over the entire width of the base sheet are provided at intervals in the length direction of the base sheet. By curving greatly, even if it does not curve a certain area | region of a solar cell film too much, the winding diameter of a winding-type solar power generation sheet can be made small. Moreover, since it is not necessary to bend a solar cell film strongly, it can make it difficult to damage a solar cell film.

  Here, like the wind-up type photovoltaic power generation sheet according to claim 2, the solar cell film has a rectangular shape, and a plurality of the solar cell films are arranged in the width direction of the base sheet to form a row. A plurality of rows may be arranged in the length direction of the base sheet with a blank region in between, and the solar cell films may be arranged at intervals in the row. By arranging the rectangular photovoltaic power generation sheets, a plurality of solar cell films can be efficiently arranged.

  Moreover, in the wind-up type solar power generation sheet according to claim 3, since the solar cell films are arranged by being shifted by 1/2 in the width direction of the base sheet in the front and rear rows, the arrangement of the solar cell films is so-called. The design looks like a brick wall and can be improved.

  Moreover, in the wind-up type photovoltaic power generation sheet according to claim 4, since the part corresponding to the part between the solar cell films of the base sheet is provided with the blindfold pattern, the space between the solar cell film and the solar cell film is provided. The first wiring provided in the part can be hidden or made inconspicuous with the blindfold pattern, and the design can be improved. In addition, since the blindfold pattern is provided on the base sheet, it is not necessary to separately provide a special member for blindfold, and the manufacturing cost can be reduced.

  Further, in the wind-up type photovoltaic power generation sheet according to claim 5, since the base sheet is transparent or translucent, it is possible to collect light from only the base sheet, and the inner space when the photovoltaic power generation sheet is stretched Can be prevented from becoming too dark.

  Moreover, in the wind-up type photovoltaic power generation sheet according to claim 6, some of the solar cell films are replaced with flexible screen pieces having a thickness similar to that of the solar cell film. Therefore, a pattern can be comprised with a solar cell film and a screen piece, and design property can be improved further. Moreover, since the solar cell film and the screen piece have the same thickness, the thickness of the photovoltaic power generation sheet can be substantially uniform in the width direction of the base sheet. Therefore, the photovoltaic power generation sheet can be easily wound up uniformly.

  Further, in the wind-up type photovoltaic power generation sheet according to claim 7, since the screen piece transmits light, it is possible to collect light from the portion of the screen piece, and the inner space when the photovoltaic power generation sheet is stretched becomes dark. This can be prevented.

  Moreover, in the wind-up type solar shading device according to claim 8, while using the wind-up type solar power generation sheet according to any one of claims 1 to 7 as a sunscreen, the wind-up type solar power generation Since the second wiring for taking out the output of the solar cell film from the sheet is provided, solar power generation can be performed using a sunscreen device such as a roll screen device or an awning.

It is a front view which shows an example of embodiment of the winding type solar power generation sheet of this invention. It is a disassembled perspective view which shows the winding type solar power generation sheet. It is a block diagram which shows the connection circuit of the solar cell film of the winding type solar power generation sheet. It is a front view which shows other embodiment of a winding type solar power generation sheet. It is a front view of the state (state with which it pulled out from the roll) which showed an example of embodiment of the winding type sunshade of this invention, and lowered the screen. It is the front view of the state which raised the screen (state wound up to the roll), showing the winding type sunshade device. It is a side view of the winding type sunshade device. It is a cross-sectional view which follows the ZZ line of FIG. It is sectional drawing of an operation means. 9A is a cross-sectional view taken along line III-III in FIG. 9, and FIG. 10B is a cross-sectional view showing a state where the operating means is not operated, and FIG. 9A is a cross-sectional view taken along line IV-IV in FIG. 9, and FIG. 10B is a cross-sectional view showing a state where the operating means is not operated, and FIG. It is an exploded view which shows a mode that an operation means and a locking means are assembled | attached to a shaft. The state which guides the edge of a front frame with a guide rail is shown, (A) is a transverse cross section of a side frame, and (B) is a longitudinal cross section of a side frame. It is sectional drawing of the conventional roll screen apparatus. It is a perspective view of the solar cell film of the conventional roll screen apparatus.

  Hereinafter, the configuration of the present invention will be described in detail based on the form shown in the drawings.

  1 to 3 show an example of an embodiment of the take-up solar power generation sheet of the present invention. A take-up solar power generation sheet (hereinafter simply referred to as a solar power generation sheet) 55 is provided on the base sheet 50 and a flexible base sheet 50 that can be wound around the roller 2, and is at least the length of the base sheet 50. A plurality of rectangular flexible solar cell films 51 of a size that can be arranged in the vertical direction and a first wiring 52 that collects the output of the solar cell film 51 are provided. Further, the solar cell films 51 are arranged at least in the length direction of the base sheet 50, and the blank region 53 without the solar cell film 51 over the entire width of the base sheet 50 is in the length direction of the base sheet 50. A plurality are provided at intervals. In FIG. 1 and the like, the solar cell film 51 and the screen piece 54 are distinguished by shading.

  In addition, the length direction of the base sheet 50 is a direction in which the photovoltaic power generation sheet 55 (base sheet 50) is wound around and pulled out from the roller 2 (the vertical direction in FIG. 1), and the width direction of the base sheet 50 is The axial direction of the roller 2 (the left-right direction in FIG. 1).

  The base sheet 50 is for protecting the solar cell film 51 and the screen piece 54. In this embodiment, the base sheet 50 includes a back sheet 50A and a surface sheet 50B, and the two sheets 50A and 50B are used for the sun. The battery film 51 and the screen piece 54 are sandwiched and laminated. The surface sheet 50 </ b> B is disposed on the surface of the solar cell film 51 where the light is applied. However, it is not always necessary to provide both the back sheet 50A and the surface sheet 50B as the base sheet 50, and either one may be omitted. In the present embodiment, a fluororesin sheet (PTFE: polytetrafluoroethylene) is used as the base sheet 50, but is not limited to this, for example, a sheet made of PET (polyethylene terephthalate), an aluminum film, a glass fiber sheet. Etc. can be used. Further, the back sheet 50A and the surface sheet 50B may be made of the same material or different materials. In the present embodiment, the outer surfaces of the back sheet 50A and the surface sheet 50B are uneven, and the difference in thickness and material due to the difference in size and shape of the unevenness, temperature differences due to differences in how sunlight strikes, etc. However, the size and shape of the unevenness need not be changed if there is no problem.

  The base sheet 50 is transparent or translucent and transmits light. In particular, the surface sheet 50 </ b> B has good light transmittance, and the solar cell film 51 is exposed to more light. However, the back sheet 50A may not transmit light, and in this case, it is possible to prevent the solar cell film 51 from being seen through from the back side (opposite side to which light is applied).

  Sealing materials (not shown) are sandwiched between the back sheet 50A and the solar cell film 51 and the screen piece 54, and between the solar cell film 51 and the screen piece 54 and the surface sheet 50B. As the sealing material, for example, an EVA (ethylene vinyl acetate copolymer resin) sheet is used, but is not limited thereto.

  The back sheet 50A and the surface sheet 50B have a rectangular shape, for example. However, the back sheet 50A and the surface sheet 50B are not limited to the rectangular shape and are appropriately determined according to the place of use. The sizes of the back sheet 50A and the surface sheet 50B are appropriately determined according to the place of use. For example, it is 2000 mm × 3000 mm. In addition, when manufacturing the photovoltaic power generation sheet 55 larger than the size that can be manufactured as a single sheet, a plurality of small photovoltaic power generation sheets 55 are connected to one large photovoltaic generation sheet 55. It is preferable to do.

  In the present embodiment, in order to make the pattern of the photovoltaic power generation sheet 55 formed by the solar cell film 51 and the screen piece 54 into a pattern like a brick wall, the solar cell film 51 and the screen piece 54 are rectangular. ing. However, the shape of the solar cell film 51 and the screen piece 54 is not limited to a rectangular shape, and the pattern of the photovoltaic sheet 55 may be changed to other shapes. Moreover, in this embodiment, although the solar cell film 51 and the screen piece 54 are made into the same shape, you may make it another shape. Furthermore, all the solar cell films 51 may have the same shape as in this embodiment, or a plurality of solar cell films 51 may be used together. Further, all the screen pieces 54 may have the same shape, or a plurality of screen pieces 54 may be used together as in the present embodiment.

  As the solar cell film 51, for example, a rectangular film having a size of 482 mm × 153 mm, 325 mm × 213 mm is used.

  Moreover, in this embodiment, in order to make the pattern of the photovoltaic power generation sheet 55 into a pattern like a brick-making wall, the solar cell film 51 and the screen piece 54 have a brick color (same color as the brick color). I am using something. The screen piece 54 preferably has a slightly different color from that of the solar cell film 51. In this case, the screen piece 54 has a pattern in which bricks having different colors are piled up, and has a texture closer to a real brick wall. Can be.

  A plurality of solar cell films 51 are arranged in the width direction of the base sheet 50 to form a row 62, and a plurality of the rows 62 are arranged in the length direction of the base sheet 50 with the blank region 53 interposed therebetween. Here, although only the solar cell film 51 may be arranged without using the screen piece 54, a part of the solar cell films 51 among the plurality of solar cell films 51 are screen pieces as in the present embodiment. 54 may be substituted. When only the solar cell films 51 are arranged, the output (power generation amount) can be increased. However, when a part of the solar cell films 51 is replaced with the screen piece 54, the sunlight, etc. can be changed by changing the color, gloss, light transmittance, etc. The design of the power generation sheet 55 can be improved. In addition, when only the solar cell films 51 that do not transmit light are arranged, the inner space may become dark when the photovoltaic power generation sheet 55 is stretched. In the case of replacement, it is possible to prevent the inner space of the photovoltaic power generation sheet 55 from becoming too dark by adopting a screen piece that transmits light.

  Further, in the row 62, the solar cell film 51 and the screen piece 54 are arranged with a space therebetween. In the present embodiment, the solar cell film 51 and the screen piece 54 are arranged so as to be shifted by 1/2 in the width direction of the base sheet 50 in the front and rear rows 62. However, the shift amount is not limited to 1/2, and may be, for example, 1/3, 1/4, or others. Moreover, it does not need to be even. By shifting the solar cell film 51 and the screen piece 54 by 1/2 in the width direction of the base sheet 50 in the front and rear rows 62, the arrangement of the solar cell film 51 and the screen piece 54 becomes a pattern like a brick wall. , Can improve the design.

  As the solar cell film 51, for example, an amorphous silicon type or a dye-sensitized film type solar cell can be used, but is not limited thereto. Each solar cell film 51 is connected, for example, in parallel by a first wiring 52. However, the connection mode is not limited to parallel, and may be a series, a mixture of series and parallel. The first wiring 52 is provided between the solar cell film 51 and the screen piece 54, that is, at a portion corresponding to a joint of a brick wall pattern. As the first wiring 52, a plus wiring and a minus wiring are provided. The first wiring 52 is connected to a pair of extraction electrodes 56 and 57 provided at, for example, an end of the photovoltaic power generation sheet 55 on the roller 2 side. Each solar cell film 51 is connected and unitized by the first wiring 52 before being laminated.

  The screen piece 54 is a member such as a flexible fabric, sheet, or film. As a material of the screen piece, for example, polyester, polyvinyl chloride, acrylic, polycarbonate, or the like can be used, but is not limited thereto. The screen piece 54 preferably has the same thickness as the solar cell film 51. By making the thickness of the screen piece 54 and the solar cell film 51 approximately the same, the thickness of the photovoltaic power generation sheet 55 can be substantially uniform in the width direction of the base sheet 50, and the photovoltaic power generation sheet 55 is wound up uniformly. Can be made easier. However, a thicker or thinner screen piece 54 than the solar cell film 51 may be adopted as long as it is not difficult to wind the photovoltaic power generation sheet 55.

  In the present embodiment, a screen piece 54 that transmits light is used. In the present embodiment, a cloth is used as the screen piece 54, and light is transmitted through the gap between the textures. However, the screen piece 54 may be made to transmit light by using a transparent or translucent film or sheet. By using the screen piece 54 that transmits light, it is possible to obtain light from the portion of the screen piece 54, and the inside space when the photovoltaic power generation sheet 55 is stretched is prevented from becoming completely dark. It can be a space with an atmosphere of. However, the screen piece 54 may be a sheet or film that does not transmit light.

  A part of the base sheet 50 corresponding to the part between the solar cell film 51 and the screen piece 54 (in this embodiment, the joint part of the brick wall pattern) is provided with a blindfold 58. In this embodiment, a blindfold 58 is attached to the surface sheet 50B. Means for attaching the blindfold pattern 58 include, but is not limited to, printing a joint pattern on the surface sheet 50B and pasting together a joint sheet or film. Instead of the surface sheet 50B or in addition to the surface sheet 50B, a blindfold pattern 58 may be added to the back sheet 50A. By applying the blindfold pattern 58, the first wiring 52 provided in the joint portion can be hidden or inconspicuous, and the design can be improved. In addition, since the blindfold 58 is provided on the base sheet 50, it is not necessary to separately provide a special member for blindfold, and an increase in manufacturing cost can be suppressed.

  In this embodiment, a brick wall pattern (hereinafter referred to as a brick wall pattern) 59 is attached to the back sheet 50A. The brick wall pattern 59 is provided so as to coincide with the brick wall pattern formed by the solar cell film 51 and the screen piece 54. Means for attaching the brick wall pattern 59 include, but are not limited to, printing on the back sheet 50A and pasting a sheet or film with the brick wall pattern attached thereto. By attaching the brick wall pattern 59, the solar cell film 51 and the first wiring 52 that can be seen inside the photovoltaic power generation sheet 55 can be hidden, and the design can be improved. When the back sheet 50A is opaque, the effect of hiding the solar cell film 51 and the first wiring 52 is lost, but even in that case, the design of the solar power generation sheet 55 is possible due to the brick wall pattern 59. Can be improved. Since the brick wall pattern 59 is provided on the back sheet 50A, it is not necessary to separately provide a special member, and the manufacturing cost can be reduced. However, the brick wall pattern 59 may not be provided on the back sheet 50A.

  Since the solar power generation sheet 55 is provided with a plurality of blank regions 53 across the entire width of the base sheet 50 between the rows 62 of the solar cell films 51 at intervals in the length direction of the base sheet 50, this blank. By curving the region 53 larger than the region where the solar cell film 51 is present, the winding diameter of the photovoltaic sheet 55 can be reduced without strongly bending the region where the solar cell film 51 is present.

  Moreover, since it is not necessary to bend the solar cell film 51 strongly, the solar cell film 51 can be hardly damaged.

  In the present invention, one or several large photovoltaic power generation sheets 55 are not provided, but many significantly smaller sheets than the base sheet 50 are provided. Therefore, the solar cell film 51, the screen piece 54, By changing the combination, arrangement, color, etc., the pattern as the photovoltaic power generation sheet 55 can be changed, and the design freedom is excellent. For example, as shown in FIG. 4, a brick wall pattern with a different design can be obtained by changing the number and arrangement of the solar cell film 51 and the screen piece 54. Thus, the solar power generation sheet 55 of the present embodiment is particularly compatible with a pattern such as a brick wall pattern. In addition, since the number of solar cell films 51 and screen pieces 54 used can be changed according to the size and shape of the base sheet 50, it is easy to cope with changes in the size of the solar power generation sheet 55.

  In this embodiment, since the pattern of the photovoltaic power generation sheet 55 is a brick wall pattern, a roll screen device or awning using the photovoltaic power generation sheet 55 as a awning screen is used for a building or a house, for example. When installed in a building window or doorway, the appearance of the building can be transformed into a brick tone by lowering the sunscreen, and by taking up the sunscreen, lighting from the window or doorway can be taken. It becomes possible to make the indoor space open.

  In the above description, the solar cell film 51 and the screen piece 54 are arranged vertically and horizontally without providing a missing portion, but a missing portion may be provided. In this case, it is possible to perform daylighting from the missing part by making the back sheet 50A transparent. Further, all of the screen piece 54 may be omitted.

  Further, in the above description, the solar cell film 51, the screen piece 54, and the like are sandwiched between the back sheet 50A and the surface sheet 50B, but are not limited to the lamination process. For example, sewing, bonding, etc. may be used.

  In the above description, the plurality of solar cell films 51 constitute the row 62, but the elongated solar cell film 51 may be used to constitute the row 62 with one solar cell film 51. .

  In the above description, the solar cell film 51 and the screen piece 54 are made brick color in order to make the pattern of the photovoltaic power generation sheet 55 a brick wall pattern. However, colors other than the brick color (brick color) Different colors may be used. Further, in the above description, the photovoltaic power generation sheet 55 and the screen piece 54 have the same color, but the photovoltaic power generation sheet 55 and the screen piece 54 may have different colors. Furthermore, screen pieces 54 of various colors may be used to make a pattern such as stained glass, for example.

  Next, a retractable sunshade device (hereinafter simply referred to as a sunshade device) will be described. 5 to 13 show an example of an embodiment of the sunshade device of the present invention. The sunshade device uses the above-described solar power generation sheet 55 as a screen for sunshade, and includes a second wiring 60 that extracts the output of the solar cell film 51 from the solar power generation sheet 55. 8 is a sectional view taken along line ZZ in FIG. 6, FIG. 10 is a sectional view taken along line III-III in FIG. 9, FIG. 11 is a sectional view taken along line VI-VI in FIG. FIG. 13A is a cross-sectional view taken along line YY in FIG. 13B, and FIG. 13B is a cross-sectional view taken along line XX in FIG.

  In this embodiment, the awning device is applied to a roll screen device, but is not necessarily limited to a roll screen device, and can also be applied to a roll-up type awning or a low curtain. In other words, any screen can be used as long as it has a screen for awning wound by a roller and pulls out the screen for awning from the roller during use.

  The roll screen device includes a roller 2 that winds up the screen 1 (solar power generation sheet 55), a front frame 3 attached to a drawer side of the screen 1, and a pair of left and right guide rails 4 that guide both ends of the front frame 3. A rack-like member 5 provided along at least one of the pair of left and right guide rails 4, a shaft 7 provided on the front frame 3 and rotatably attached to a pinion gear 6 that meshes with the rack-like member 5; A locking means 8 for locking the shaft 7 to the front frame 3 and an operating means 9 for releasing the locking of the shaft 7 by the locking means 8 are provided.

  In the present embodiment, for example, a case where it is installed outside a house window will be described as an example, but the installation location is not limited thereto. Moreover, it is not restricted to the installation outdoors, and may be installed indoors.

  The roll screen device has a main frame 10 fixed horizontally on a window and left and right side frames 11 fixed vertically on both sides of the window. Side caps 12 are fixed to both ends of the main frame 10 by bolts, for example, and the left and right side caps 12 are fixed to upper ends of the left and right side frames 11 by bolts, for example. The main frame 10 is fixed to the wall 22 by a pair of left and right mounting brackets 13, and the lower ends of the side frames 11 are fixed to the wall 22 by mounting brackets 14.

  A roller 2 (hereinafter referred to as a take-up roller) 2 for winding the screen 1 is supported by left and right side caps 12 at both ends. The take-up roller 2 is constantly urged in a direction to take up the screen 1 by a spring (not shown). The upper part of the winding roller 2 is covered with a roof 15 fixed to a pair of left and right mounting brackets 13. Both ends of the roof 15 are covered with left and right side plates 16.

  The left and right side frames 11 are provided with guide rails 4 for guiding both ends of the front frame 3. In the present embodiment, the guide rail 4 is integrally formed with the side frame 11, but a separate guide rail 4 may be attached to the side frame 11. By integrally forming the guide rail 4 on the side frame 11, the number of parts can be reduced, the manufacturing cost can be reduced, and the construction on the wall 22 can be facilitated.

  The guide rail 4 is provided with a rack-like member 5. The rack-like member 5 may be any member that can mesh with the pinion gear 6 and move the rotating pinion gear 6 linearly. In addition to the rack, the rack-like member 5 is provided at a constant pitch so as to mesh with the pinion gear 6. It includes a large number of small holes and others. In the present embodiment, a large number of small holes are provided at a constant pitch so as to mesh with the pinion gear 6 as the rack-like member 5. In the present embodiment, rack-like members 5 are provided on the left and right guide rails 4.

  The front frame 3 is a frame having substantially the same length as the drawer side edge of the screen 1, and a recess 3a for connecting the screen 1 is formed at the upper part and a recess 3b for accommodating the shaft 7 is formed at the lower part over the entire length. Yes. A bag-like portion 1 a provided at the drawer side edge of the screen 1 is inserted into the recess 3 a for connecting the screen 1. By inserting the connecting pipe 17 into the bag-like portion 1a and expanding the bag-like portion 1a in the recess 3a, the bag-like portion 1a cannot be removed from the recess 3a, and the front frame 3 is connected to the drawer side edge of the screen 1. be able to. Left and right sliders 18 guided by the left and right guide rails 4 are fixed to both ends of the front frame 3 by, for example, bolts.

  The shaft 7 includes a central small-diameter pipe 7a, left and right large-diameter pipes 7b connected to both ends of the small-diameter pipe 7a, and left and right end bars 7c connected to the outer ends of the left and right large-diameter pipes 7b. . By dividing the shaft 7 in this way, it becomes easy to make the central portion of the shaft 7 thinner. As will be described in detail later, the locking means 8 and the operating means 9 can be attached to the central portion of the shaft 7, so that the locking means 8 and the operating means 9 can be made too thick by making the central portion thinner. Can be prevented.

  The shaft 7 is housed in a recess 3b for housing the shaft 7 of the front frame 3, and the front ends of the left and right end bars 7c are projected through the left and right sliders 18. A pinion gear 6 that meshes with the rack-like member 5 is attached to the protruding portions of the left and right end bars 7c. The pinion gear 6 is not rotatable relative to the end bar 7c.

  The small-diameter pipe 7a is rotatably supported by a pair of left and right shaft holders 19 and 20 that are fitted into a recess 3b for housing the shaft 7 of the front frame 3. The shaft holders 19 and 20 are provided with convex portions 19 a and 20 a that are fitted into the opening portions of the concave portions 3 b for accommodating the shaft 7, and cannot rotate with respect to the front frame 3. On the other hand, a sleeve 21 for reducing the rotational resistance of the small diameter pipe 7a is provided between the shaft holders 19 and 20 and the small diameter pipe 7a.

  In this embodiment, a coil spring that tightens and locks the peripheral surface of the shaft 7 as the locking means 8 that locks the shaft 7 to the front frame 3, and an operating means that releases the locking of the shaft 7 by the locking means 8. 9, levers that loosen the tightening force of the coil springs are used. However, it is not limited to these. For example, the rotation of the shaft 7 may be regulated by a member that imparts frictional resistance, a pin or the like may be inserted into a hole provided in the shaft 7 to regulate the rotation, and other means may be used. In short, it is only necessary to be able to regulate the rotation of the shaft 7.

  The locking means 8 and the operating means 9 are provided at the center of the front frame 3. The operating means 9 includes a cylindrical portion 9a disposed between the shaft holders 19 and 20 in the concave portion 3b for accommodating the shaft 7 of the front frame 3, and a lever portion 9b extending outward from the opening of the concave portion 3b. Has been. The coil spring as the locking means 8 is accommodated in a notch portion 9c provided on the inner peripheral surface of the cylindrical portion 9a and wound around the small-diameter pipe 7a. One end of the coil spring is provided on one shaft holder 19. The other end is inserted into the locking hole 19b provided in the cylindrical portion 9a and locked. When the locking means 8 is tightening the small-diameter pipe 7a, the small-diameter pipe 7a cannot be rotated by the frictional force. That is, the shaft 7 is locked to the front frame 3. The winding direction of the coil spring as the locking means 8 is such that when the cylindrical portion 9a is rotated (operated) in the releasing direction (arrow CCW direction in FIGS. 10B and 11B), the small diameter pipe 7a is tightened. It is in the direction of loosening.

  In the present embodiment, one shaft holder 19 is provided with a plurality of locking holes 19b (FIG. 11), and the small diameter pipe 7a of the locking means 8 is selected by selecting the locking hole 19b to be used. The tightening force can be adjusted.

  Since the pinion gear 6 meshing with the rack-like member 5 is attached to both ends of the shaft 7, the front frame 3 cannot be moved unless the shaft 7 rotates. That is, the front frame 3 can be locked to the guide rail 4 by locking the shaft 7 to the front frame 3 by the locking means 8. In a state where the operating means 9 is not operated (FIGS. 10A and 11A), the locked state of the front frame 3 is maintained by the spring force of the locking means 8.

  On the other hand, by operating the operating means 9 to release the locking of the shaft 7 by the locking means 8 (FIGS. 10B and 11B), the lock of the front frame 3 is released and the pinion gear 6 The front frame 3 can be moved while rotating with respect to the rack-like member 5. At this time, since the sliders 18 at both ends of the front frame 3 are guided by the left and right guide rails 4, the front frame 3 moves along the guide rails 4.

  Next, the use of the roll screen device will be described. When the user is not operating the operating means 9, the front frame 3 is locked to the guide rail 4 and cannot move. Therefore, the screen 1 is not pulled out by being blown by the wind or the like. 1 is being wound on the winding roller 2).

  When the user operates the operating means 9 to unlock the front frame 3, the front frame 3 can be moved. The user moves the front frame 3 while operating the operating means 9 and pulls the screen 1 out of the take-up roller 2. At this time, since the user can move the front frame 3 as it is while holding the lever portion 9b and performing the unlocking operation, it is a so-called one-touch operation, which is excellent in usability. Then, after the front frame 3 is moved to a desired position, when the user releases his / her hand from the operation means 9, the locking means 8 locks the shaft 7 and the front frame 3 is locked. The length can be fixed. In this state, since the front frame 3 is locked to the guide rail 4, it is possible to prevent the screen 1 from fluttering by being blown by the wind.

  In the present invention, the front frame 3 is locked by locking the shaft 7 by the locking means 8 and preventing the pinion gear 6 meshing with the rack-like member 5 provided on the guide rail 4 from rotating. The front frame 3 can be locked at an arbitrary position within the movable range of the frame 3.

  In the present embodiment, since the left and right combinations of the rack-like member 5 and the pinion gear 6 are provided, the screen 1 can be more securely stopped and the front frame 3 can be more reliably prevented from being inclined. be able to.

  In the above description, the combination of the rack-like member 5 and the pinion gear 6 is provided as a pair on the left and right, but may be provided on only one of them.

  Further, in the above description, the front frame 3 is moved while the operation means 9 is unlocked in both directions when the front frame 3 is raised (winding the screen 1) and lowered (drawing the screen 1). However, for example, when the winding force of the coil spring as the locking means 8 is adjusted and the shaft 7 rotates in the direction of expanding the winding portion of the coil spring, the rotation of the shaft 7 causes the coil spring to rotate. The winding portion may be expanded to automatically release the locking of the shaft 7, and the front frame 3 may be moved as it is without performing the unlocking operation of the operating means 9. That is, when the front frame 3 is lowered, the shaft 7 rotates in the direction of expanding the coil spring winding portion, and when the front frame 3 is raised, the shaft 7 rotates in the direction of contracting the coil spring winding portion. When the frame 3 is lowered, the locking of the shaft 7 is automatically released, so that the front frame 3 is lowered as it is without releasing the operation means 9 and the front frame 3 is raised. Since the shaft 7 is not automatically unlocked, the front frame 3 may be raised while the operation means 9 is unlocked. Conversely, when the front frame 3 is raised, the shaft 7 rotates in the direction of expanding the coil spring winding portion, and when the front frame 3 is lowered, the shaft 7 rotates in the direction of contracting the coil spring winding portion, When the front frame 3 is raised, the locking of the shaft 7 is automatically released, so that the front frame 3 is raised as it is without the operation means 9 being unlocked, and the front frame 3 is lowered. In this case, since the locking of the shaft 7 is not automatically released, the front frame 3 may be lowered while the operating means 9 is unlocked.

  As the second wiring 60, a plus wiring and a minus wiring are provided. The second wiring 60 is provided on the roller 2, for example, one end is connected to the extraction electrodes 56 and 57, and the other end is drawn from the end of the roller 2 and connected to the battery 61, for example. The output (electric power) of the solar cell film 51 of the photovoltaic power generation sheet 55 is stored in the battery 61 through the first wiring 52 and the second wiring 60.

  In the present embodiment, the generated electric power is stored in the battery 61. However, the present invention is not limited to this. For example, you may connect directly to loads, such as an electric lamp.

  Thus, the solar shading device of the present invention can perform solar power generation. Moreover, since the pattern of the solar power generation sheet 55 is a brick wall pattern, the appearance of the house installed can be transformed into a brick tone by lowering the sunscreen 1 and the sunscreen 1 By taking up the light, daylighting from the window becomes possible and the indoor space can be made open.

  The above-described embodiment is an example of a preferred embodiment of the present invention, but is not limited thereto, and various modifications can be made without departing from the scope of the present invention.

  For example, in the above description, the screen 1 (solar power generation sheet 55) is manually pulled out and wound up. However, for example, the screen may be pulled out and wound up by a driving force of an electric motor or the like. . In this case, it is preferable to use the electric power stored in the battery 61. Further, when the screen 1 is pulled out, the spring 1 may be elastically deformed and the screen 1 may be wound using the elastic force.

  In the above description, the screen 1 is moved in the vertical direction, but the moving direction of the screen 1 is not limited to this. For example, the screen 1 may be moved in a horizontal direction or an oblique direction.

  In the above description, the rollers 2 are arranged horizontally, but may be arranged vertically.

1 Screen for awning 2 Roller 50 Base sheet 51 Solar cell film 52 First wiring 53 Blank area 54 Screen piece 55 Retractable solar power generation sheet (screen for awning)
58 Blindfold pattern 60 Second wiring 62 Array of solar cell films

Claims (8)

  A flexible base sheet that can be wound around a roller, and a plurality of flexible solar cell films that are provided on the base sheet and that can be arranged at least in the length direction of the base sheet. And a first wiring for collecting the output of the solar cell film, the solar cell film being arranged at least in the length direction of the base sheet, and extending over the entire width of the base sheet A wind-up solar power generation sheet, wherein a plurality of blank regions having no gap are provided at intervals in the length direction of the base sheet.   The solar cell film has a rectangular shape and is arranged in a row in the width direction of the base sheet, and a plurality of the rows are arranged in the length direction of the base sheet across the blank region. In the said row | line | column, the said solar cell film is arranged in the space | interval, The roll-up type photovoltaic power generation sheet | seat of Claim 1 characterized by the above-mentioned.   The take-up solar power generation sheet according to claim 2, wherein the solar cell films are arranged so as to be shifted by 1/2 in the width direction of the base sheet in the front and rear rows.   The winding solar photovoltaic sheet according to any one of claims 1 to 3, wherein a portion of the base sheet corresponding to a portion between the solar cell films is provided with a blindfold pattern. .   The roll-up solar power generation sheet according to any one of claims 1 to 4, wherein the base sheet is transparent or translucent.   6. The solar cell film according to claim 1, wherein a part of the solar cell film is replaced with a flexible screen piece having a thickness similar to that of the solar cell film. Rewind-type solar power generation sheet as described in 1.   The wind-up solar photovoltaic sheet according to claim 6, wherein the screen piece transmits light.   While using the wind-up type photovoltaic power generation sheet according to any one of claims 1 to 7 as a screen for awning, a second method of taking out the output of the solar cell film from the wind-up type solar power generation sheet A retractable sunshade comprising a wiring.