JP2007239290A - Louver equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide movable louver equipment which can be developed/housed in a folded state, and which is suitable as a shading control unit for a glass house, a glass roof with a large area, etc. <P>SOLUTION: A sheet-like material, which is formed of a thin-plate material with flexibility and elasticity, is formed in such a zigzag shape that side edges of a plurality of strip-shaped parts 12 are alternately bent. A plurality of slit lines 41 are formed in the strip-shaped parts from one side edge to the other side edge, so as to form a plurality of slat parts 42 and constitute the louver body 11. A development/storage mechanism 20 makes the louver body 11 in a zigzag shape developed like a pleated curtain and housed in the folded state. An opening/closing mechanism 30 of the slat bodies makes mutual adjacent side edges of the strip-shaped part 12 of the louver body 11 relatively moved in direction opposite to each other in the surface direction of the louver body, so that the slat parts 42 can be turned and opened/closed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a movable louver device. More specifically, the present invention relates to a movable louver device in which a thin sheet material is formed in a zigzag shape and can be unfolded and folded.

  Recently, carbon dioxide emission regulations have been strengthened, and as a part of energy conservation, light shielding of openings such as windows of buildings and skylights is regarded as important. For example, in the cooling load of a building in the summer, the input of solar heat occupies a large specific gravity, and shielding this solar heat is a big problem. Recently, in order to save energy in offices, etc., a perimeter-less design that does not require special air-conditioning design for the so-called perimeter area near windows and walls has been made. Shielding is a big problem.

  As a means of shielding solar heat, there is a method of covering the window glass with a film that absorbs or reflects solar heat, but if the absorption rate or reflectivity is increased, the glass naturally becomes darker, the room is darker, and the feeling of pressure There are problems such as becoming stronger.

  Recently, highly functional greenhouses are becoming popular for the modernization of agriculture. The purpose of the greenhouse is to maintain the internal solar radiation and temperature in a state suitable for crops, and it is necessary to shade in the summer and keep warm in the winter night. For this reason, there is a greenhouse in which the light shielding sheet and the heat insulating sheet can be unfolded or accommodated along the inside of the roof. However, such a greenhouse has a complicated structure and high cost, and there is also a problem that the solar radiation control can be performed directly or only two-stage solar radiation control with a certain light shielding rate by the light shielding sheet can be performed.

  There is a blind device as a means of controlling solar radiation and radiation from these windows or roofs. This blind device can block sunlight when the sun's altitude is high, such as in the summer, even if the blind blade angle is close to the horizontal, allowing light other than direct sunlight to enter the room, and outside the window. Is highly visible, reduces the feeling of pressure, and is preferable as a light-shielding device. However, the temperature of the blind device itself becomes high due to solar heat, and solar heat is eventually input into the room due to secondary radiation or air convection. In addition, since the blind has a structure in which the blades are suspended by a ladder string, it can be arranged only vertically, and cannot be arranged along the inside of an inclined roof such as a greenhouse.

  As shown in Patent Document 1, there is one that prevents intrusion of heat into a room by arranging a blind between double panes and ventilating air between the panes. However, this has to be provided with a special double window, the whole window is thick and the structure is complicated, and particularly when an existing building is renewed, a large-scale renovation work is required.

  In addition, there is one in which a light shielding mechanism such as a blind or a movable louver device is built in between the glasses of the multi-layer glass window as disclosed in Patent Document 2 and Patent Document 3. This can shield solar heat effectively, and the external dimensions can be formed in the same way as the conventional double-glazed glass window, so the work is easy, and even if the existing building is renovated, the work is easy. . However, since the interval between such multi-layer glasses cannot be so large, the width of the blades or slats must be narrowed by a normal blind or louver mechanism, and they are bent by their own weight. For this reason, in the above-mentioned Patent Documents 2 and 3, blades or slats are formed of a thin foil plate, tension is applied to them by a spring, and these are stretched linearly. However, since these blades or slats are narrow in width, the number of the blades or slats is naturally large, and a mechanism for applying tension to these many blades or slats and rotating them is complicated, resulting in an increase in cost.

  The inventor has invented a louver device using a sheet-like material as previously disclosed in Patent Document 4. In this, a large number of slit lines are formed in a sheet material to form a large number of blade portions, the sheet material is stretched and held between a pair of movable frames, and the movable frames are rotated to form a sheet. It gives shear deformation in the surface direction to the material. When the sheet-like material divided into a plurality of blade portions by the slits is subjected to shear deformation in the plane direction, torsional deformation occurs at the root portion of each blade portion, and thereby the blade portions rotate to this louver device. Opens and closes. This is simple in structure and can be made thin. However, the shape of the entire sheet must be shear-deformed (rectangles into parallelograms or parallelograms into rectangles). Can not be built in. In addition, since the narrow blade portion is formed of a thin sheet material, the blade portion vibrates due to wind or the like when the width is wide. There was also.

  In addition, such a blind device or a movable louver device is not limited to the one built in the multi-layer glass window as described above, and has various uses for greenhouses and for shielding solar heat. It is not limited to use as a blindfold or other light control device.

  In order to solve the above problems, the present inventor has developed a louver device in Japanese Patent Application No. 2005-281634, which has high strength and does not vibrate the blade portion even by wind or the like. In this structure, a plurality of frame members are attached to a sheet-like material at predetermined intervals, and a plurality of slit lines are formed between the frame members from one frame member to the other frame member to form a plurality of blade portions. The sheet-like material is stretched with a predetermined tension, and the frame members adjacent to each other are moved relative to each other in the direction of the surface of the louver body so as to form a sheet-like material in a portion between them. The blade part can be opened and closed by applying shear deformation, and the overall shape can be maintained in a rectangular shape, and a plurality of frame members are attached to the middle part of the sheet-like material. It does not vibrate.

However, for example, when installing in a greenhouse, building skylight, glass dome or hall, etc., for maintenance work such as replacing the louver body of this louver device, or when 100% of solar radiation is introduced in winter It has become necessary to unfold and fold the louver device.
JP 2003-239657 A JP 2002-89154 A JP 2004-11389 A Japanese Patent Publication No. 7-972

  The present invention has been made based on the above circumstances, and a sheet-like material formed of a thin plate material having flexibility and elasticity is formed into a zigzag shape in which side edges of a plurality of belt-like portions are alternately bent. These belt-shaped parts form louver bodies in which a plurality of slit lines are formed from one side edge part to the other side edge part to form a plurality of blade parts, and this zigzag louver body is expanded and folded. The present invention provides a louver device that is particularly suitable as a shading control device for a greenhouse, for example, a large-area glass roof.

  The present invention according to claim 1 is a sheet-like material formed of a thin plate material having flexibility and elasticity, and is formed into a zigzag shape in which side edges of a plurality of belt-like portions are alternately bent. Includes a louver body in which a plurality of slit lines are formed from one side edge part to the other side edge part to form a plurality of blade parts, and an unfolding / folding mechanism for unfolding and folding the zigzag louver body. And a blade portion opening / closing mechanism that relatively moves side edge portions adjacent to each other of the belt-like portion of the louver body in the direction opposite to the surface direction of the louver body.

  According to the present invention, the louver body is formed in a zigzag shape by overlapping a plurality of strip-like sheet materials and alternately joining the side edges.

  According to a third aspect of the present invention, the louver main body is formed by bending a sheet-like material alternately in opposite directions into a zigzag shape.

  According to a fourth aspect of the present invention, the plurality of slit lines are bent in opposite directions at one end and the other end in the vicinity of both end portions, and the blade portion is in the vicinity of the both end portions. Bent portions that are bent in opposite directions are formed.

  Since the present invention according to claim 1 is formed in a zigzag shape in which the side edges of the plurality of strip-like portions are alternately bent, the sheet-like material formed of a thin plate material having flexibility and elasticity, This zigzag louver body can be unfolded and folded and stored like a pleated curtain.

  Then, in the unfolded state, the strips are shear-deformed (deformation so that the rectangle becomes a parallelogram) by alternately moving the joints of the side edges of the strips in opposite directions, and each blade The end part of the part is twisted and deformed, the blade part rotates and opens and closes, and acts as a movable louver that can arbitrarily change the light shielding rate. When 100% of solar radiation is introduced, the zippered louver body is folded and stored like a pleated curtain. Even when the louver body is replaced or repaired, if the louver body is folded and maintenance work is performed, the work is easy.

  According to the second aspect of the present invention, since a plurality of belt-shaped sheet-like materials are overlapped and the side edges thereof are alternately joined to form a folded louver body, the rigidity of the joined portion of the side edges is determined. The distance between the supporting guide wire and the like when deployed is large, and the structure is simplified. Moreover, in the folded state, since each strip | belt-shaped part mutually_contact | adheres, it can fold smaller.

  According to the third aspect of the present invention, the sheet-like material is alternately bent in the opposite direction to form a zigzag louver main body, which is easy to manufacture and suitable for mass production. Moreover, since the sheet-like material which comprises a louver main body is continuing, intensity | strength is large.

  In the present invention according to claim 4, since the plurality of slit lines are bent in opposite directions at one end and the other end in the vicinity of the both ends, the torsional deformation of both ends of the blade portion is prevented. It is large and no torsional deformation occurs in the central portion of the blade portion.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. In this embodiment, the sheet-like foldable movable louver device of the present invention is applied as a light-shielding device for a greenhouse.In addition, a skylight for a building or a hall, a light-shielding for a glass roof, a light-shielding mechanism for a building window, The present invention can also be applied to a partition such as an office, that is, a partition, other light shielding and light control devices.

  FIG. 1 is an automated greenhouse equipped with the louver device of the present invention. In the figure, reference numeral 1 denotes a greenhouse, which is glazed or covered with a greenhouse film. The movable louver device 10 of the present invention is attached to the inside of the roof and walls of the greenhouse 1. As shown in the plan view of FIG. 2, these louver devices 10 are a plurality of unitized louver devices that are installed on the inside of the roof without gaps, and are similarly installed on the inside of the wall.

  In the greenhouse, various sensors, for example, a light quantity detector 2 in the greenhouse, a temperature detector 3 in the greenhouse, and the like are provided, and signals from these are sent to the control device 4 of the greenhouse. These signals are processed by the control device 4, and the louver device 10 is expanded / stored and opened / closed.

  For example, in a normal case, the louver device 10 is controlled so that the amount of light is optimal for the growth of plants cultivated in the greenhouse 1. That is, for plants to be cultivated, such as leafy vegetables, flower buds, etc., there is an optimal amount of light that makes the quality, growth period, etc. most efficient depending on the variety, and when the amount of external solar radiation is greater than this Adjusts the opening degree of the louver device 10 so that the light quantity detected by the light quantity detector 2 becomes the optimum value. Also, in summer and the like, when the temperature in the greenhouse rises until it hinders the growth of plants, the opening degree of the louver device 10 is reduced, and the temperature rise is prevented by blocking solar radiation.

  The control device 4 is connected to a program device 5 so that a control program corresponding to the variety of plant to be cultivated can be exchanged and changed. Further, an external connection device 6 is connected to the control device 4, and information can be sent to an external or remote terminal device 7, for example, a mobile phone, and can be controlled from this terminal. In addition, a power supply device 8 for operating the control device 4 and the louver device 10 is installed. The power supply device 8 is supplied with power from an external commercial power source, and in the event of a power failure. The built-in battery or the like can supply power independently for a necessary time.

  Next, the configuration of the louver device 10 will be described with reference to FIGS. FIG. 3 is a plan view, and 11 is a louver body. The louver body 11 is made of a flexible sheet material having a certain degree of elasticity, for example, a film material having a thickness of about 36 μm having a three-layer structure of a resin film, an aluminum deposited film, and a resin film. As shown, the side edge portions of the plurality of belt-like portions 12 formed in a belt shape are alternately joined to each other, and are formed in a zigzag shape. In this embodiment, in order to increase rigidity and strength, the side edge portions of the belt-like portions 12 are joined with the bone members 13 and 14 interposed therebetween. These bone members 13 and 14 are made of a material such as aluminum, stainless steel, or fiber reinforced resin, and have a rod shape or a strip shape.

  Further, both ends of the louver main body 11 are connected to highly rigid frame members 15 and 16. The one or upper bone member 14 is configured to move while being guided by a guide wire 18 stretched over the stationary side, that is, the frame of the greenhouse 1. The louver body 11 guided and supported in this manner is expanded and folded and stored by the expansion / storage mechanism 20, and is opened and closed as a movable louver by the opening / closing mechanism 30 to adjust the light blocking rate to an arbitrary value. .

  Next, the configuration of the deployment / storage mechanism 20 will be described with reference to FIGS. The frame member 15 on the distal end side of the louver body 11 is moved by the deployment / housing mechanism 20, whereby the louver body 11 is pulled out and deployed. The deployment / storage mechanism 20 includes a pair of pulleys 21 and 22 rotatably supported on a greenhouse frame, an endless wire 23 stretched between them, and a pulley on the base end side. It is composed of a drive motor mechanism 24 and the like that are driven to rotate in both forward and reverse directions. The endless wire 23 is attached to the frame member 15 on the distal end side of the louver body 11, and the frame member 16 on the proximal end side is connected to the greenhouse 17 via a spring 17 for applying tension to the louver body 11. It is attached to the frame.

  When the pulley 21 is rotated by the drive motor mechanism, the unfolding / storing mechanism 20 moves the endless wire 23, pulls out the frame member 15 at the tip of the louver main body 11, and as shown in FIG. 11 is expanded. In this case, a predetermined tension is applied to the deployed louver body 11 by the spring 17.

When the pulley 21 is rotationally driven in the reverse direction, the frame member 15 moves to the proximal end side as shown in FIG. 5, and the louver body 11 is folded and stored like a pleated curtain.
In this state, since the louver body 11 is folded to the proximal end side, maintenance work such as replacement and repair of the louver body 11 can be easily performed.

  Next, the opening / closing mechanism 30 of the louver body 11 will be described with reference to FIGS. FIG. 6 shows the opening / closing mechanism 30 in a simplified manner. A large pulley 31 and a small pulley 32 having a smaller diameter are rotatably supported on the base end side of the louver body 11. These are rotationally driven in both forward and reverse directions by a drive motor mechanism 33 as shown in FIG. The both ends of the opening / closing string 34 are wound around the large pulley 31 and the small pulley 32, respectively. The opening / closing string 34 is guided to the distal end portion of the louver main body 11 through a pair of guide holes formed in the bone members 13 and 14 of the joint portion of the louver main body 11 and is rotatably attached to the frame member 15 at the distal end portion. The guide pulley 35 is folded 360 °. Further, the opening / closing strings 34 are arranged in a mountain shape between the bone members 13 and 14, that is, in a zigzag insertion path. Each of the bone members 13 and 14 is provided with two guide holes 36 arranged side by side, and a resin bush 37 having a small friction coefficient is provided in these guide holes in order to reduce friction with the opening / closing string 34. It is attached.

  Moreover, the winding direction of the opening / closing string 34 is reversed between the large pulley 31 and the small pulley 32. Therefore, when the large pulley 31 and the small pulley 32 rotate, for example, the open / close string 34 is wound on the large pulley 31 and is unwound on the small pulley 32. However, since the amount of winding of the large pulley 31 is larger, the entire length of the opening / closing string 34 with respect to the guide pulley decreases. When rotating in the reverse direction, the length of the entire opening / closing string 34 with the guide pulley increases in contrast to the above.

  Further, during the above operation, the traveling directions of the two guide strings 34 folded back by the guide pulley 35 are reversed. Therefore, when traveling in the two guide holes 36 as shown in FIG. 8, the frictional force accompanying the traveling is reversed, and the frictional forces acting on the two guide holes 36 arranged in the opposite direction are reversed. The frictional force is offset, and the frictional force acting on the bone members 13 and 14 is reduced by the travel of the guide string 34, so that they are not deformed.

  Further, the winding relationship between the large pulley 31, the small pulley 32 and the opening / closing string 34 and the relationship of the mountain-shaped insertion path between the opening / closing string 34 and the bone members 13, 14 are as follows. And the small pulley 32 are completely opposite to each other, and even if they rotate in the same direction, the length of the entire opening / closing string 34 is reduced in one large pulley 31 and the small pulley 32, and the other On one large pulley 31 and the small pulley 32, the entire length of the opening / closing string 34 is loosened.

  Next, the operation of the opening / closing mechanism 30 will be described with reference to FIGS. First, the structure of the film material of the louver body 11 will be described with reference to FIG. In the strip portion of the film material, a large number of slit lines 41 are formed across both side edges, and a portion between them is formed as a movable blade portion 42 of the louver body. Both end portions of these slit lines 41 are bent in opposite directions, and thus both end portions of each blade portion 42 are also bent. In this embodiment, these blade portions 42 are not oblique to the bone members 13 and 14 but are arranged obliquely.

  When the strips 12 of the film material in which a large number of blade portions 42 are formed by such slits are subjected to shear deformation, that is, when the rectangle is transformed into a parallelogram or the parallelogram is transformed into a rectangle, the end of each blade portion 42 The torsional deformation in the same direction occurs, and the blades rotate simultaneously in the same direction, and the louver body operates as a movable louver that can be freely opened and closed. Since the end portion of the blade portion has a bent shape, the torsional deformation is large and the torsional deformation occurs only in the bent portion, and the blade portion 42 is flat except for the end portion. It rotates while keeping its shape, and reflects and controls light accurately.

  9 and 10 show a state in which the opening / closing degree of the blade portion 42 is in an intermediate state in a state where the louver main body 11 is expanded. That is, since the blade portion 42 is disposed obliquely with respect to the bone members 13 and 14, when the louver main body 11 is deployed and a predetermined tension is applied by the spring 17, the blade is caused by this tension. The portion 42 is deformed so as to be perpendicular to the bone member, and the blade portion is in a half-open state as shown in FIG. This state is a neutral state, and all the open / close strings 43 are in a loose state.

  Next, when the large pulley 31 and the small pulley 32 are rotated, as shown in FIGS. 11 and 12, one opening / closing string 34 is squeezed and the other opening / closing string 34 is further loosened. As a result, the bone members 13 and 14 move relative to each other in the direction of the arrow in FIG. 11, and in this state, the film material of the louver body 11 returns to the initial state in which no load or deformation is applied. The torsional deformation at the end of the portion 42 is also eliminated. Therefore, as shown in FIG. 12, the blade portions 42 are aligned on the same plane, and this state is the fully closed state of the louver main body 11, which does not transmit light and has a light shielding rate of 100%.

  Next, when the large pulley 31 and the small pulley 32 are rotated in the opposite directions, as shown in FIGS. 13 and 14, one opening / closing string 34 is loosened and the other opening / closing string 34 is squeezed. As a result, the bone members 13 and 14 move relative to each other in the direction of the arrow in FIG. 13, and the shear deformation further increases from the neutral state in FIG. 9. As shown in FIG. The louver main body 11 is fully opened by rotating greatly. In this case, these blade portions 42 can be rotated to an angle of 80 to 90 ° without excessively deforming the film material of the louver main body 11. In the mid-latitude region, the midsummer solar altitude is about 80 °, so the blades 42 can be rotated to be parallel to the direction of solar radiation, and the solar radiation is transmitted approximately 100%, that is, the light shielding rate is substantially 0%. It can be.

  As described above, the louver body 11 can be adjusted to an arbitrary light shielding rate steplessly from 100% to 0%. Therefore, the light quantity introduced into the greenhouse can be accurately controlled to the optimum light quantity for the plant to be cultivated.

  As described above, the reason why the blade portion 42 is disposed obliquely with respect to the bone members 13 and 14 in the initial state is that when the louver main body 11 is deployed and tension is applied, FIG. 9 and FIG. As shown in FIG. 4, the blade 42 is neutral and is in a half-open state. From this state, the relative movement of the bone members 13 and 14 is equally distributed to the left and right to reduce the relative movement stroke when opening and closing. Therefore, when it is not necessary to reduce the shading rate, such as in high latitude areas where the solar altitude is low, or in greenhouses dedicated to cultivation of orchids, leafy vegetables, etc., the blades are placed so that they are perpendicular to the bone members in the initial state. May be.

  In addition, this invention is not limited to said embodiment, For example, it is good also as 2nd Embodiment as shown in FIG. In this embodiment, the opening / closing mechanism of the louver body has a configuration different from that described above.

  The opening / closing mechanism 50 of this embodiment includes a plurality of spline shafts 51. The spline shaft 51 is rotatably supported on a greenhouse frame or the like by a bearing 52 and is driven to rotate in both forward and reverse directions by a drive motor mechanism 53. In addition, a winding drum 54 is attached to each of the spline shafts 51 corresponding to the position of the deployed bone member 13 of the louver body, and these winding drums 54 are integrated with the spline shaft 51. And is movable in the axial direction of the spline shaft 51. In addition, an opening / closing string 55 is wound around each winding drum 54, and the ends of these opening / closing strings are attached to the bone member 13.

  In such an opening / closing mechanism 50, when the spline shaft 51 is rotationally driven in both forward and reverse directions by the drive motor mechanism, the winding drum 54 winds or unwinds the opening / closing string 55, and moves the bone member 13 in both directions of the arrow. Similarly, the louver body 11 is opened and closed. FIG. 15 schematically shows the opening / closing mechanism 50. However, in an actual louver device, for example, the spline shaft 51 is guided to the louver main body when the louver main body 11 is deployed and stored. You may comprise so that it may act as a guide wire. The second embodiment has the same configuration as that of the first embodiment except for the points described above, and common portions are denoted by the same reference numerals and description thereof is omitted.

  Further, the configuration of the louver body is not limited to the above. In FIG. 16, the louver main body 61 of 3rd Embodiment is shown. In this structure, a continuous film material is alternately folded back to form a zigzag louver main body 61, and a band-shaped portion 62 is formed between the folded portions.

  Note that a bone member 63 is attached to each bent portion of the louver body 61 in order to increase rigidity. The bone member 63 includes, for example, a round bar-shaped core member 64 and a pressing member 65 having a C-shaped cross section, and a bent portion of the film material is sandwiched and fixed therebetween. The louver device having such a structure can be manufactured easily and quickly by using a dedicated folding device because the film material is continuous, and is suitable for mass production.

  Further, FIG. 17 shows a louver body 71 of the fourth embodiment. In this structure, continuous film materials are alternately folded back to form a zigzag louver main body 71, and a band-like portion 72 is formed between the folded portions.

  The louver main body 71 is formed by sewing or bonding the bent portion into a bag shape to form a bag-like portion 75, and stitching a rod-like bone member 74 into the bag-like portion 75. The louver device having such a structure can be manufactured easily and quickly by using a dedicated folding device or sewing device because the film material is continuous, and is suitable for mass production.

  The present invention is not limited to the above embodiments. For example, the material constituting the louver body is not necessarily limited to a film material, and for example, a cloth, a nonwoven fabric, a fiber reinforced plastic sheet material, and other sheet materials can be used. Further, if a sheet material having a relatively high rigidity is used, a bone member is not necessarily required, but the joint portion or the folded portion of the side edge portion of the belt-like portion functions as a bone member that increases the rigidity.

  Further, the opening / closing mechanism is not limited to the above-described one, and an arbitrary structure can be adopted. For example, when the louver device is unitized, the frame member of the entire unit is composed of two frame members that can move relative to each other, one bone member is connected to one frame member, and the other By connecting the bone member to the other frame member and relatively moving these frame members, it is also possible to relatively move the bone members all at once.

  In addition, each of the blade portions may be straight without extending the end portion. In this case, the twist of the end part affects up to the central part of the blade part, but does not require accurate light control characteristics, and there is not much trouble if the average light shielding rate can be adjusted.

The schematic of the greenhouse which incorporated the louver apparatus of the 1st Embodiment of this invention. The top view of the greenhouse of FIG. The top view of the louver apparatus of this invention. 4-4 arrow line view of FIG. FIG. 4 is a view taken in the direction of arrows 4-4 in FIG. 3 in a folded state. The top view of the opening-and-closing mechanism of a 1st embodiment. Sectional drawing in alignment with line 7-7 in FIG. Sectional drawing which follows the 8-8 line of FIG. The top view of the louver main body in a neutral state. Sectional drawing which follows the 10-10 line of FIG. The top view of the louver main body of a fully closed state. Sectional drawing which follows the 12-12 line | wire of FIG. The top view of the louver main body of a full open state. Sectional drawing which follows the 14-14 line | wire of FIG. The top view of the opening / closing mechanism of 2nd Embodiment. The side view of the louver main body of 3rd Embodiment. The side view of the louver main body of 4th Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Greenhouse 2 Light quantity detector 3 Temperature detector 4 Control apparatus 5 Program apparatus 6 Connection apparatus 7 Terminal apparatus 8 Power supply apparatus 9 Commercial power supply 10 Louver apparatus 11 Louver main body 12 Band-shaped part 13 Bone member 14 Bone member 15 Frame member 16 Frame member 17 Spring 18 Guide wire 20 Deployment / storage mechanism 21 Pulley 22 Pulley 23 Endless wire 30 Open / close mechanism 31 Large pulley 32 Small pulley 33 Drive motor mechanism 34 Open / close string 35 Guide pulley 36 Guide hole 37 Resin bush 41 Slit wire 42 Blade 50 Open / close mechanism 51 Spline shaft 52 Bearing 53 Drive motor mechanism 54 Winding drum 55 Opening / closing string 61 Louver main body 62 Band-shaped portion 63 Bone member 64 Core member 65 Holding member 71 Louver main body 72 Band-shaped portion 74 Bone member 75 Bag-shaped portion

Claims (4)

  A sheet-like material formed of a thin plate material having flexibility and elasticity is formed in a zigzag shape in which the side edges of a plurality of belt-like portions are alternately bent, and these belt-like portions are formed from one side edge to the other. A louver body in which a plurality of blades are formed by forming a plurality of slit lines over the side edge, a deployment / storage mechanism for unfolding and storing the folded louver body, and a belt-shaped portion of the louver body A louver device, comprising: a blade opening / closing mechanism that relatively moves side edge portions adjacent to each other in directions opposite to each other in a surface direction of the louver body.   The louver device according to claim 1, wherein the louver body is formed by overlapping a plurality of strip-shaped sheet-like materials and alternately joining the side edges thereof in a zigzag manner.   2. The louver device according to claim 1, wherein the louver body is formed by bending sheet-like materials alternately in opposite directions into a zigzag shape.   The plurality of slit lines are bent in opposite directions at one end and the other end in the vicinity of both ends thereof, and the blade portion is formed with a bent portion bent in the opposite directions in the vicinity of both ends. The louver device according to claim 1, wherein the louver device is provided.

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