Rotary shade

Abstract

To provide a rotary shade that, with a simpler structure than the prior art, can extend a ceiling portion only when in use.SOLUTION: A rotary shade of the present invention comprises a supporting column, a rotation cylinder body, rotation means, and blade bodies. The rotation cylinder body is a cylindrical member mounted to the supporting column, the rotation means rotates the rotation cylinder body around a column axis, and two or more blade bodies are mounted to the outer periphery of the rotation cylinder body. When the rotation cylinder body rotates around the column axis by the rotation means, the blade bodies rotate together with the rotation cylinder body, an axial member rotates in a substantially vertical plane so that its tip side ascends, and membrane materials extend substantially horizontally.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to technology for shades (sunshades) that can be installed in parks, plazas, outdoor event venues, etc., and more specifically, to a rotating shade that can form a "cover" to block sunlight and rain by rotating a membrane material. [Background technology]

[0002] In recent years, global temperatures have been rising due to global warming, and the number of midsummer days and extremely hot days is increasing in Japan as well. When midsummer days and extremely hot days continue, many people suffer from heat stroke, and many people are rushed to the hospital complaining of dizziness, convulsions, headaches, etc.

[0003] Therefore, measures to prevent heatstroke are often implemented, especially in summer, at tourist destinations visited by many people, outdoor event venues, outdoor stadiums, etc. For example, visitors are encouraged to wear cool clothing, use parasols, and hats, to frequently replenish their fluids and salt intake, or temporary shade such as tarps is set up at the venue.

[0004] For this reason, various technologies have been proposed for shades as temporary facilities. For example, Patent Document 1 proposes a roof structure that can be used as a tarp tent, supported by multiple frames installed at the corners of the ceiling. Patent Document 2 also proposes a structure in which a main trunk is installed in the center and is covered with a large umbrella-shaped roof. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Utility Model Registration No. 3202050 [Patent Document 2] Utility Model Registration No. 3175362 Summary of the Invention [Problem to be solved by the invention]

[0006] However, the "folding tent" disclosed in Patent Document 1 requires the placement of multiple support frames around the perimeter, and these support frames can sometimes become a barrier when entering the shaded area. Furthermore, the "umbrella-shaped roof structure" disclosed in Patent Document 2 has the problem that the roof is supported only by a central trunk, making it structurally vulnerable to strong winds and gusts. Furthermore, conventional temporary shades generally always have their ceiling (i.e., roof) extended, and few of them have ceilings that can be folded down when not in use. Even if the ceiling could be folded down when not in use, they often require complex structures or large equipment, making them unsuitable for installation in tourist destinations or event venues.

[0007] The object of the present invention is to solve the problems of the prior art, that is, to provide a rotating shade that has a simpler structure than the prior art and can extend the ceiling portion only when in use. [Means for solving the problem]

[0008] The present invention was developed based on an unprecedented concept, utilizing the centripetal force associated with uniform circular motion, much like a swing set at an amusement park, to rotate a rotating cylinder, lifting multiple shafts and horizontally extending membrane materials attached to the shafts to form a shade in the air.

[0009] The rotating shade of the present invention comprises a support column, a rotating cylinder, a rotation means, and blades. The support column is a columnar member whose axis is substantially vertical (including vertical), and the rotating cylinder is a cylindrical member attached to the support column so as to accommodate a portion of the support column. The rotation means rotates the rotating cylinder around the axis, and the blades are members having a shaft and a membrane attached to the shaft. Two or more blades are attached to the outer periphery of the rotating cylinder so as to be freely rotatable in a substantially vertical (including vertical) plane. When the rotating cylinder rotates around the axis by the rotation means, the two or more blades rotate together with the rotating cylinder, and the shaft rotates in a substantially vertical (including vertical) plane so that its tip side rises, and the membrane extends substantially horizontal (including horizontal).

[0010] The rotating shade of the present invention may also have a fixed intermediate body attached to a part of the support column. This fixed intermediate body is a member having a gear attached to its outer periphery. In this case, the rotating means has a first rotating body that rotates around a substantially vertical (including vertical) axis and has a gear attached to its outer periphery, and is attached to the rotating cylinder so as to rotate together with the rotating cylinder. The fixed intermediate body and the first rotating body are arranged so that their gears mesh with each other. When the first rotating body is rotated by the rotating means, the rotating cylinder rotates around the column axis.

[0011] The rotating shade of the present invention may further include a winding means. This winding means is a means for winding up and unwinding the material, one end of which is fixed to the blade body. When the winding means winds up the material, the shaft rotates in a substantially vertical (including vertical) plane so that the tip side rises, and when the winding means unwinds the material, the shaft rotates in a substantially vertical (including vertical) plane so that the tip side descends.

[0012] The rotating shade of the present invention may further include a rotating intermediate body. This rotating intermediate body is attached to a portion of the support column so as to be rotatable about the column axis and has a gear provided on its outer periphery. In this case, the winding means has a second rotor that rotates about a vertical (including vertical) axis and has a gear provided on its outer periphery. The rotating intermediate body and the second rotor are arranged so that their gears mesh with each other, and the shaft passes through an insertion hole provided in the rotating cylinder and is fixed at its other end to the rotating intermediate body. When the winding means rotates the second rotor in one direction (forward direction), the rotating intermediate body rotates about the column axis, and the shaft is wound around the rotating intermediate body, raising the tip end of the shaft. When the winding means rotates the second rotor in the other direction (reverse direction), the rotating intermediate body rotates about the column axis, and the shaft is unwound from the rotating intermediate body, lowering the tip end of the shaft.

[0013] The rotating shade of the present invention can be configured so that when the membrane is extended substantially horizontally (including horizontally), a portion of the membrane overlaps with the adjacent blade body in a plan view. In this case, the membrane is shaped to widen from the base side (the rotating cylinder side) of the shaft toward the tip side.

[0014] The rotating shade of the present invention may also be one in which the blades are attached so that the shaft is free to rotate in a substantially horizontal (including horizontal) plane.

[0015] The rotating shade of the present invention may also have a thin-film solar cell attached to the upper surface of the film material. In this case, the rotating means is operated using power generated by the solar cell.

[0016] The rotating shade of the present invention may further include a rotation control means for controlling the rotating means. This rotation control means is a means for remotely controlling the rotation speed of the rotating means. [Effects of the Invention]

[0017] The rotating shade of the present invention has the following advantages. (1) The wings (membrane material) are deployed only when shade is needed, such as on midsummer or extremely hot days, and can be folded up compactly when not in use. As a result, they do not become a barrier to traffic or spoil the scenery. (2) The structure mainly involves rotating a rotating cylinder, and can be made relatively simple, which reduces the costs of manufacturing, installation, and maintenance. (3) By installing a thin-film solar cell (e.g., a perovskite solar cell) on the upper surface of the membrane material and using the power generated by this to operate the rotation means, the cost of commercial electricity can be reduced and complex wiring can be avoided. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 1 is a side view schematically showing a rotating shade according to the present invention. [Figure 2] (a) Plan view showing a schematic of a single wing body, (b) Plan view showing all wing bodies deployed. [Figure 3] FIG. 2A is a cross-sectional view schematically showing the rotation means as viewed from the side, and FIG. 2B is a cross-sectional view schematically showing the rotation means as viewed from above. [Figure 4] FIG. 10 is a plan view of a shaft member attached to the rotating cylinder 120 using the blade-side connecting ring and the cylinder-side connecting ring, as viewed from above. [Figure 5] FIG. 3 is a cross-sectional view showing a schematic side view of the hoisting means. [Figure 6] 1A is a cross-sectional view showing a schematic view of the second rotating body and the rotating intermediate body as viewed from above, and FIG. 1B is a cross-sectional view showing a schematic view of the second rotating body and the rotating intermediate body as viewed from above. [Figure 7] (a) is a cross-sectional view showing the state in which the wing body rises from a hanging state to an approximately horizontal state by winding up the material, and (b) is a cross-sectional view showing the state in which the wing body rises further from an approximately horizontal state by winding up the material. DETAILED DESCRIPTION OF THE INVENTION

[0019] An example of an embodiment of the rotating shade of the present invention will be described with reference to the drawings.

[0020] 1 is a side view that schematically shows a rotating shade 100 of the present invention. As shown in this figure, the rotating shade 100 of the present invention is configured to include a support column 110, a rotating cylinder 120, blades 130, and a rotating means that will be described later, and can also be configured to include a rotating intermediate body, a hoisting means, a rotation control means, etc., that will be described later.

[0021] The rotating cylinder 120 is attached to the support column 110 so as to rotate around an axis (hereinafter referred to as the "column axis") in the longitudinal direction of the support column 110 (the vertical direction in FIG. 1). The wing body 130 is attached to the rotating cylinder 120 by a pin connection so as to be freely rotatable in a substantially vertical (including vertical) plane. Therefore, when the rotating cylinder 120 rotates around the column axis, the wing body 130 also rotates, and like a swing at an amusement park, the centripetal force generated by uniform circular motion causes the wing body 130 to rise. A membrane material 132 is provided on the wing body 130, and this membrane material 132 extends substantially horizontally (including horizontally) like when a cheering flag is waved, thereby forming a shade (covering). Below, each of the main elements constituting the rotating shade 100 of the present invention will be described in detail.

[0022] (support pillar) The support column 110 is a columnar member whose dimension in the column axis direction is greater than its cross-sectional dimension, and is installed, for example, on the floor or the ground so that its column axis is in a substantially vertical (including vertical) direction. Note that to stabilize the support column 110, a portion of it can be embedded in the ground, or it can be fixed to a base plate 110B as shown in Figure 1. The support column 110 can be made of a pipe or rod material with sufficient strength, such as steel or resin, and its cross-sectional shape can be circular or polygonal.

[0023] (rotating cylinder) The cylindrical, generally hollow rotating cylinder 120 rotates around its axis and is attached to the support column 110 so as to accommodate a portion of the column (particularly the upper portion). However, since the support column 110 itself does not rotate, the rotation means 140 rotates relative to the support column 110. The rotating cylinder 120 can be made of a material with sufficient strength, such as steel or resin, and its cross-sectional shape can be circular or polygonal. Power is required to rotate the rotating cylinder 120, and this power can be electric. While commercial power can be used, it is also possible to use locally generated power. In this case, it is preferable to install thin-film solar cells SC on the upper surface of the rotating cylinder 120 and use the power generated by these cells, as shown in FIG. 3(a). Alternatively, a storage battery can be installed inside the rotating cylinder 120, and the electricity generated by the solar cells SC can be charged into the storage battery and used to power the rotating cylinder 120.

[0024] (wing body) 2 is a diagram showing a schematic of the wing body 130, where (a) is a plan view showing a single wing body 130, and (b) is a plan view showing all the wing bodies 130 in the deployed state. As shown in FIG. 2(a), the wing body 130 is composed of a shaft 131 and a membrane material 132. The shaft 131 is a member made of a pipe or rod having a sufficient strength, such as steel or resin, and one end of the shaft 131 is attached to the rotating cylinder 120. For convenience, the connecting end side of the shaft 131 (left side in the figure) will be referred to as the "root side," and the open end side of the shaft 131 (right side in the figure) will be referred to as the "tip side."

[0025] The membrane material 132 is a thin member such as a film or sheet, and is placed on one side of the shaft material 131 (the lower side in the figure) and then attached to the shaft material 131. When deploying the membrane material 132, it is advisable to rotate the wing body 130 (particularly the shaft material 131) in a direction in which the membrane material 132 is not placed (upward in Figure 2(a)). It is also desirable that the membrane material 132 be made of a material that can block sunlight, does not allow rainwater to penetrate, and is not easily damaged by strong winds.

[0026] As shown in FIG. 2(b), multiple wing bodies 130 are attached to the rotating cylinder 120. When the wing bodies 130 rotate around the column axis together with the rotating cylinder 120, the membrane materials 132 are extended substantially horizontally, and these membrane materials 132 are configured to cover the area below. Therefore, the membrane materials 132 can be shaped (e.g., triangular) so that they widen from the base of the shaft 131 toward the tip, as shown in FIG. 2(a). For example, in the case of FIG. 2(b), one membrane material 132 is roughly fan-shaped with a central angle of 15 degrees, and 24 membrane materials 132 form a roughly circular shade. In this case, each wing body 130 (especially a membrane material 132) should be positioned so that a portion of the membrane material 132 overlaps with another membrane material 130 adjacent to it in plan view, so that there is no gap between the wing body 130 (e.g., a membrane material 132) and the adjacent wing body 130 behind it.

[0027] As described above, it is conceivable to use electricity generated on-site as the power to rotate the rotating cylinder 120. Therefore, as shown in FIG. 2(a), it is advisable to install thin-film solar cells SC (e.g., perovskite solar cells) on the upper surface of the membrane material 132 and use the electricity generated by these. These solar cells SC can be installed on the membrane materials 132 of all of the wing bodies 130, or they can be installed only on the membrane materials 132 of some of the wing bodies 130, for example, on half of the wing bodies 130 as shown in FIG. 2(b). Furthermore, if a storage battery is installed inside the rotating cylinder 120, the electricity generated by the solar cells SC can be charged into the storage battery and then used to power the rotating cylinder 120.

[0028] As described above, the blade body 130 (particularly the shaft member 131) is attached to the rotating cylinder 120 by a pin connection so as to be freely rotatable in a substantially vertical plane. For example, as shown in Figure 3(a), a cylinder-side connection ring CR can be attached to the rotating cylinder 120, and the shaft member 131 can be attached to the rotating cylinder 120 via this cylinder-side connection ring CR. The cylinder-side connection ring CR is annular and is arranged so that its opening is on a substantially vertical (including vertical) surface. Therefore, the shaft member 131, one end of which (the end on the base side) is connected to the cylinder-side connection ring CR, can freely rotate in a substantially vertical plane, generally around the cylinder-side connection ring CR.

[0029] The rotating shade 100 of the present invention can rotate the rotating cylinder 120 and blades 130 to form a shade using the membrane material 132 only when shading is required, such as when exposed to strong sunlight or during rainy weather. In other words, when shading is not required, the shaft material 131 is simply left hanging (hanging). The shaft material 131 is also left hanging during strong winds such as typhoons, but in this case, wind force acts on the shaft material 131. At this time, the shaft material 131 is dispersed and blown away by the strong wind. In this state, to avoid the risk of damage, the shaft material 131 should be attached to the rotating cylinder 120 so that it can rotate freely in a substantially vertical plane and also in a substantially horizontal plane (including horizontal). For example, in Figure 4, a blade-side connecting ring 131C is attached to one end of the shaft 131, and the shaft 131 is attached to the rotating cylinder 120 using this blade-side connecting ring 131C and the cylinder-side connecting ring CR. The blade-side connecting ring 131C is annular and is positioned so that its opening is on a substantially horizontal (including horizontal) surface, so that the shaft 131, one end of which (the end on the base side) is connected to the cylinder-side connecting ring CR, can freely rotate generally within a substantially horizontal plane around the blade-side connecting ring 131C.

[0030] (Rotation means) The rotation means 140 is a means for rotating the rotating cylinder 120 around the column axis. The rotation means 140 can employ various conventional techniques as long as it can rotate the rotating cylinder 120. Alternatively, for example, a rotation means 140 as shown in FIG. 3 can also be used. FIG. 3 is a diagram schematically showing an example of the rotation means 140, where (a) is a cross-sectional view cut on a vertical plane and (b) is a cross-sectional view cut on a horizontal plane (view taken along arrow AA in FIG. 3(a)). The rotation means 140 shown in this figure will be described below.

[0031] In this case, the rotation means 140 is attached to the rotating cylinder 120, and therefore rotates around the column axis together with the rotating cylinder 120. The rotation means 140 also includes a first rotating body 141. The first rotating body 141 has a gear on its outer periphery and rotates around a substantially vertical axis (including the vertical). Note that hydraulic pressure, electricity, etc. can be used as the power to rotate the first rotating body 141, and when electricity is used, commercial electricity can be used, or electricity generated by solar cells SC can also be used.

[0032] Meanwhile, the fixed intermediate body 150 is installed on the support column 110 as shown in Fig. 3(a). This fixed intermediate body 150 is partially cylindrical or columnar, and a gear is provided on the outer periphery of the cylindrical (or columnar) part. However, since the fixed intermediate body 150 is fixed to the support column 110, it does not rotate around the column axis. As shown in Fig. 3(b), the first rotating body 141 and the fixed intermediate body 150 are arranged so that their gears mesh with each other. As a result, when the first rotating body 141 rotates around a substantially vertical axis, the rotation means 140 (particularly the first rotating body 141) moves so as to rotate along the outer periphery of the fixed intermediate body 150, i.e., the rotating cylinder 120 rotates around the column axis. Specifically, when the first rotating body 141 rotates clockwise in a plan view, the rotation means 140 also moves clockwise around the fixed intermediate body 150 and the rotating cylinder 120 rotates clockwise, and when the first rotating body 141 rotates counterclockwise in a plan view, the rotation means 140 and the rotating cylinder 120 also rotate counterclockwise. As shown in Figure 3(a), it is advisable to arrange a ball bearing BR or the like at the portion where the rotating cylinder 120 and the fixed intermediate body 150 come into contact (the lower surface of the rotating cylinder 120) so that the rotating cylinder 120 can rotate smoothly.

[0033] As described above, when the rotating cylinder 120 rotates around the column axis, the multiple blades 130 also rotate around the column axis. At this time, a centripetal force is generated in the blades 130 due to uniform circular motion, causing them to rise like a swing set at an amusement park. That is, the blades 130 rotate in a substantially vertical plane around the connecting end (i.e., the end on the base side) of the shaft 131 so that the tip side of the shaft 131 rises. As the shaft 131 rotates, the membrane material 132 expands substantially horizontally, thereby forming a shade (cover). On the other hand, when the rotation of the rotating cylinder 120 slows down, the centripetal force generated in the blades 130 is reduced, causing them to descend, and when the rotation of the rotating cylinder 120 stops, the shaft 131 becomes drooping. That is, the wing body 130 rotates in a substantially vertical plane around the connecting end of the shaft member 131 so that the tip side of the shaft member 131 descends, and finally reaches a hanging state.

[0034] (Hoisting means) The hoisting means 160 is a means for winding up and unwinding the sling, one end of which is fixed to the wing body 130. When the hoisting means 160 winds up the sling, the wing body 130 rotates in a substantially vertical plane around the connecting end of the shaft 131 so that the tip of the shaft 131 rises. On the other hand, when the hoisting means 160 unwinds the sling, the wing body 130 rotates in a substantially vertical plane around the connecting end of the shaft 131 so that the tip of the shaft 131 descends. This hoisting means 160 can employ various conventional technologies, such as winches and hoists, as long as it can wind up and unwind the sling. Alternatively, a hoisting means 160 such as that shown in Figures 5 and 6 can also be used. Figure 5 is a schematic diagram of an example of a hoisting means 160, showing a vertical cross-section. 6A and 6B are cross-sectional views cut along a horizontal plane, with (a) being a view taken along the arrow BB in Fig. 5 and (b) being a view taken along the arrow CC in Fig. 5. The hoisting means 160 shown in this figure will now be described.

[0035] In this case, the hoisting means 160 is attached to the rotating cylindrical body 120, and therefore rotates around the column axis together with the rotating cylindrical body 120. The hoisting means 160 also includes a second rotating body 161. The second rotating body 161 has a gear on its outer periphery and rotates around a substantially vertical axis (including the vertical). Note that hydraulic pressure, electricity, etc. can be used as the power to rotate the second rotating body 161, and when electricity is used, commercial electricity can be used, or electricity generated by solar cells SC can also be used.

[0036] Meanwhile, a rotating intermediate body 170 is installed on the support column 110, as shown in Fig. 5. This rotating intermediate body 170 is a so-called winch drum, and is partially cylindrical or columnar, with a gear provided on the outer periphery of the cylindrical (or columnar) part. The rotating intermediate body 170 is attached to the support column 110 so as to rotate relative to the support column 110, i.e., so as to rotate around the column axis. For this reason, it is preferable to install a ball bearing BR or the like at the contact point between the support column 110 and the rotating intermediate body 170 (the upper part of the rotating intermediate body 170 in Fig. 5) so that the rotating intermediate body 170 can rotate smoothly.

[0037] 6(a), the second rotating body 161 and the rotating intermediate body 170 are arranged so that their gears mesh with each other. As a result, when the second rotating body 161 rotates around a substantially vertical axis, the rotating intermediate body 170 rotates around the outer periphery of the support column 110. Specifically, when the second rotating body 161 rotates clockwise in a plan view, the rotating intermediate body 170 rotates counterclockwise around the support column 110, and when the second rotating body 161 rotates counterclockwise in a plan view, the rotating intermediate body 170 rotates clockwise around the support column 110.

[0038] The members 162 constituting the hoisting means 160 can be, for example, wire ropes, and as shown in FIG. 5, one end of the members is fixed to the side of the rotating intermediate body 170 (the "fixed point" shown in the figure), and the other end is fixed to the wing body 130 (particularly, the shaft member 131). It is preferable that one end of the members 162 is fixed as high as possible on the rotating intermediate body 170 and at equal intervals in the circumferential direction. In addition, as shown in FIG. 6(b), the rotating cylinder 120 is disposed between the start point and end point of the members 162. Therefore, the members 162 are installed so as to pass through insertion holes provided in the rotating cylinder 120. In other words, since a wing body 130 is fixed to each member 162, the rotating cylinder 120 is provided with insertion holes equal to the number of wing bodies 130 (36 in the case of FIG. 6(b)). Also, on the outside of the rotating cylinder 120, a guide ring RG (for example, an eyebolt) for guiding the material 162, or a guide pipe GP for preventing damage to the material 162 can be arranged.

[0039] When the second rotating body 161 rotates in one direction (hereinafter referred to as the "forward direction") and the rotating intermediate body 170 rotates around the outer periphery of the support column 110, the material 162 fixed to the rotating intermediate body 170 is wound around the rotating intermediate body 170. At this time, due to the effect of the insertion holes provided in the rotating cylinder 120, the multiple materials 162 are wound around the support column 110 in an orderly manner without becoming entangled with each other. As a result of the material 162 being wound around the support column 110, the material 162 is wound up, and as shown in Figures 7(a) and 7(b), the wing body 130 (particularly the shaft 131) rotates in an approximately vertical plane around the connecting end of the shaft 131 so that the tip side of the shaft 131 rises. Figure 7(a) is a cross-sectional view that schematically shows the situation in which the wing body 130 rises from a hanging state to an approximately horizontal state by winding up the countermeasure material 162, and Figure 7(b) is a cross-sectional view that schematically shows the situation in which the wing body 130 rises further from an approximately horizontal state by winding up the countermeasure material 162.

[0040] On the other hand, when the second rotating body 161 rotates in a direction other than the forward direction (hereinafter referred to as the "reverse direction") with the material 162 wound around the rotating intermediate body 170, the material 162 gradually moves away from the rotating intermediate body 170, that is, the material 162 is unwound. As a result, the wing body 130 rotates in a substantially vertical plane around the connecting end of the shaft 131 so that the tip side of the shaft 131 descends.

[0041] The winding means 160 can wind up and unwind the material 162 while the rotating cylinder 120 is not rotating around the column axis, or can wind up and unwind the material 162 while the rotating cylinder 120 is rotating around the column axis. For example, when the rotation of the rotating cylinder 120 alone does not raise the wing body 130 to nearly horizontal, the winding means 160 winds up the material 162, thereby further raising the wing body 130. In this case, it is preferable to rotate the rotating intermediate body 170 at a rotational speed higher than the rotational speed of the rotating cylinder 120. The first rotating body 141 that rotates the rotating cylinder 120 and the second rotating body 161 that rotates the rotating intermediate body 170 are independent mechanisms, so their rotational speeds can be adjusted individually.

[0042] (Rotation control means) The rotation control means is a means for controlling the rotating cylinder 120 and the winding means 160, and can be, for example, a means for controlling the first rotating body 141 of the rotating means 140 and a means for controlling the second rotating body 161 of the winding means 160. Specifically, it can control the start and stop of the first rotating body 141 and the second rotating body 161, and can control the speed or slowness of their rotation. The rotation control means should preferably be designed so that it can be controlled by remote operation even from a location distant from the rotating shade 100 of the present invention. [Industrial Applicability]

[0043] The rotating shade of the present invention can be used in a variety of places and situations, including outdoor event venues, tourist spots, outdoor stadiums, parks, schools, etc. Considering that the present invention provides a place that blocks direct sunlight and thereby prevents heatstroke, it can be said to be an invention that can be expected to not only be used industrially but also make a great contribution to society. [Explanation of symbols]

[0044] 100 Rotating shade of the present invention 110 (Rotating shade) support column 110B (support column) base plate 120 Rotating cylinder (for rotating shade) 130 (rotating shade) wing body 131 (wing body) shaft material 131C (Wing) Body Side Connecting Ring 132 (Wing) membrane material 140 (rotating shade) rotation means 141 (rotating means) first rotating body 150 (rotating shade) fixed intermediate fuselage 160 (Rotating shade) winding means 161 (hoisting means) second rotating body 162 (hoisting means) material 170 Rotating mid-body (for rotating shade) BR ball bearing CR Cylinder side connection ring RG Guide Ring GP Guide Pipe SC solar cell

Claims

1. a support column whose column axis is vertical or approximately vertical; a rotating cylinder attached to the support column so as to accommodate a portion of the support column; a rotating means for rotating the rotating cylindrical body around the column axis; a wing body having a shaft and a membrane attached to the shaft; Two or more of the blades are attached to the outer periphery of the rotating cylinder so that the shaft can rotate freely within a vertical or approximately vertical plane, When the rotating cylinder rotates around the column axis by the rotating means, the two or more blades rotate together with the rotating cylinder, the shaft rotates in a vertical or approximately vertical plane so that the tip side rises, and the membrane material extends horizontally or approximately horizontally. A rotating shade.

2. A fixed intermediate body having a gear on its outer periphery is installed on a part of the support column, the rotating means has a first rotating body that rotates around a vertical or approximately vertical axis and has a gear provided on its outer periphery, The rotating means is installed on the rotating cylinder so as to rotate together with the rotating cylinder, the fixed intermediate body and the first rotating body are disposed such that their gears mesh with each other; When the first rotor is rotated by the rotating means, the rotating cylindrical body rotates around the column axis.

2. The rotating shade according to claim 1.

3. Further provided is a winding means for winding and unwinding a material having one end fixed to the wing body, When the winding means winds up the material, the shaft rotates in a vertical or substantially vertical plane so that the tip side rises, When the winding means unwinds the material, the shaft rotates in a vertical or substantially vertical plane so that the tip side descends.

2. The rotating shade according to claim 1.

4. The rotating intermediate body is attached to a part of the support column so as to be rotatable around the column axis, and has a gear on its outer periphery. the hoisting means has a second rotor that rotates around a vertical or substantially vertical axis and has a gear provided on its outer periphery, the rotating intermediate body and the second rotating body are arranged so that their gears mesh with each other, The member passes through an insertion hole provided in the rotating cylindrical body, and the other end is fixed to the rotating intermediate body, When the second rotating body is rotated in one direction by the hoisting means, the rotating intermediate body rotates around the column axis, and the shaft is wound around the rotating intermediate body, causing the tip side of the shaft to rise. When the second rotating body is rotated in the other direction by the hoisting means, the rotating intermediate body rotates around the column axis, and the shaft is unwound from the rotating intermediate body, causing the tip side of the shaft to descend.

4. The rotating shade according to claim 3.

5. The membrane material has a shape that widens from the base side toward the tip side of the shaft material, When the rotating cylinder rotates around the column axis and the membrane material is extended horizontally or approximately horizontally, a portion of the membrane material overlaps with another adjacent one of the wing bodies in a plan view.

2. The rotating shade according to claim 1.

6. The two or more wing bodies are attached so that the shaft members are free to rotate in a horizontal or approximately horizontal plane.

2. The rotating shade according to claim 1.

7. Thin-film solar cells are installed on the upper surface of the membrane material of some or all of the two or more wing bodies, The rotating means is operated using power generated by the solar cell.

2. The rotating shade according to claim 1.

8. Further, a rotation control means for controlling the rotation means is provided, The rotation control means can remotely control the rotation speed of the rotation means.

2. The rotating shade according to claim 1.

Images