JP2017006003A - vinyl house - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vinyl house that can selectively use sheets according to climate (or weather), and can adjust illuminance of sunlight, room temperature, amount of rainwater given and the like.SOLUTION: A vinyl house comprises a building frame which forms a framework and a sheet which is stretched over the framework. The building frame comprises a building frame constitutional units including rising members provided in a rising shape at predetermined intervals in an opening direction and arch members provided between the upper portion of the rising members. The building frame constitutional units are configured such that a plurality thereof are provided in a line in a ridge direction with predetermined intervals therebetween, a winding device for winding sheets is provided on any of the upper end of the rising members or the lower end of the arch members of the builing frame constitutional units at the end part side in the ridge direction of the building frame, a rotating shaft extending in the ridge direction which winds up the sheet is connected to the winding device.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a greenhouse for agriculture, and can smoothly stretch and wind the sheet, and not only can the sheet be stretched during rain, but also the illuminance of sunlight and room temperature can be easily adjusted. About the house.

  Since the greenhouse can be kept indoors by the greenhouse effect, it is used as an agricultural facility that can realize a cultivation environment suitable for plants and fruits even in the cold season. Some of these greenhouses are also equipped with exhaust facilities, etc., which can exhaust high-temperature air staying in the ceiling and encourage indoor ventilation. In addition, it is possible to realize a desirable environment for the growing fruit vegetables. That is, by using the greenhouse, it is possible to adjust the illuminance by sunlight, the room temperature, and the like, and to provide a suitable environment for plants to be cultivated.

  Such vinyl houses are offered in a variety of sizes, from large ones used in large-scale farms to simple ones handled by individual farmers. For example, in the case of a large house such as a farm, a ceiling window that can be opened and closed can be provided on the ceiling, and indoor ventilation can be promoted, but this is a large facility. On the other hand, a simple type of greenhouse handled by many individual farmers has pipe-shaped housings made of steel, synthetic resin, etc. arranged at predetermined intervals, and the housing is covered with a vinyl sheet. It is common. The simplified type greenhouse has a structure like a gabled house as a whole, and is configured by covering the roof and side surfaces with one or a plurality of vinyl sheets. Due to such a structure, the installation of the vinyl sheet requires a lot of labor and manpower, and the work time is enormous. Also, even if you try to collect the vinyl sheet and release the roof part according to the climate (or weather) conditions, as in the case of installation, it takes a lot of time and effort to expand and wind the sheet. Cost and time loss are large, making it difficult to cultivate efficiently.

  Therefore, various devices have been studied and proposed for easily winding or unwinding a vinyl sheet in order to reduce labor and time when the roof is opened and closed by sheet expansion and winding.

  For example, Patent Document 1 (Japanese Patent Application Laid-Open No. 2002-078423) proposes a manual opening and closing device for a greenhouse that can perform the tensioning of the vinyl sheet and the fixing of the vinyl sheet and the opening and closing operation of the ceiling portion by one person. That is, in Patent Document 1, in a plastic greenhouse such as a saddle type with a pipe-like structure as a framework, a vinyl sheet covering a roof portion is divided in half along a ridge, and the vinyl sheet is wound around side walls on both sides. A manual opening and closing device for a greenhouse has been proposed in which a roll is installed and a reel for winding a drawing string member attached to the drawing end of the vinyl sheet is installed on the opposite side wall.

  Patent Document 2 (Japanese Patent Application Laid-Open No. 2004-313200) proposes a vinyl rewinding / rewinding apparatus that can be easily installed, has good operability, and is economical. That is, Patent Document 2 proposes a vinyl rewinding / rewinding device that automatically opens and closes the awning and side curtain of a greenhouse at a set temperature, during rainfall, during strong winds, or at an arbitrary time.

  Further, in Patent Document 3 (Japanese Patent Laid-Open No. 2008-306993), a sheet opening / closing device capable of preventing a winding shaft that winds or pulls out a sheet from being bent by a load and realizing a smooth opening / closing operation of a vinyl sheet. Has proposed. That is, in Patent Document 3, a roll for winding a vinyl sheet or a reel for winding a string member for pulling out a vinyl sheet is formed on a side wall portion of a bowl-shaped greenhouse structure in which pipe members are continuously arranged at an appropriate interval. A seat opening and closing device for a greenhouse has been proposed in which a support member for maintaining the shaft on which the shaft is installed is attached to the pipe-like structure in the central region of the shaft.

JP 2002-078423 A JP 2004-313200 A JP 2008-306993 A

  As described above, various devices have been studied and proposed that focus on easily winding or unwinding a vinyl sheet constituting a roof in a conventional greenhouse.

  However, in any prior art, a single sheet formed transparent or translucent has been used as the vinyl sheet for opening and closing the roof. For this reason, although it can cope with rain by opening and closing the roof, in order to adjust the amount of sunlight, a light shielding curtain or the like had to be used separately. In particular, when using a light-shielding curtain, it is necessary to open and close the two sheets eventually in combination with the vinyl sheet, and the adjustment of the growth environment (that is, environmental adjustment in the greenhouse) is complicated. It was. In addition, even a transparent or translucent vinyl sheet may be unsuitable for the growing environment of crops such as fruits due to a decrease in transparency due to ultraviolet rays or deterioration over time.

  Therefore, in the present invention, according to the climate (or weather), the illuminance of sunlight, room temperature, or the amount of rainwater to be applied can be adjusted only by winding or operating a single sheet, and if necessary, further. The first problem is to provide a greenhouse that can fully open the vinyl sheet on the roof.

  Moreover, in the conventional greenhouse, the rotating shaft which winds or steers a sheet | seat was being fixed to the location used as the circular center position of the wound sheet | seat. However, when the sheet is wound or manipulated, the outer diameter of the sheet wound around the rotation shaft changes. Therefore, if the rotating shaft is fixed, it becomes difficult to actively support the winding portion of the sheet whose outer diameter changes, and the central portion in the longitudinal direction of the rotating shaft floats in the air, causing distortion and deformation. It happened. And when distortion or a deformation | transformation arises in the rotating shaft, there existed a problem that a sheet | seat could not be wound up smoothly. Therefore, in order to reduce the possibility of distortion and deformation of the shaft as much as possible, conventionally, it has been considered to use a material with high strength as the material of the shaft or to thicken the shaft itself, but that would increase the cost. There was a problem.

Therefore, in the present invention, even when a long rotating shaft for winding a sheet is formed, the possibility of distortion or deformation of the shaft can be reduced as much as possible while suppressing cost, and smooth sheet winding can be achieved. Providing a possible greenhouse is the second issue.

  In order to solve at least one of the above-mentioned problems, the present invention is a greenhouse for agriculture, and includes a frame that is a framework and a sheet that is stretched on the framework, and the frame has a predetermined interval in the frontage direction. A plurality of housing structural units, each of which is composed of a rising member provided in a rising shape and an arch member provided in an arch shape between the upper portions of the rising members, are arranged at predetermined intervals in the ridge direction. A winding device for winding the sheet is provided at the upper end of the rising member or the lower end of the arch member of any of the structural units on the ridge direction end side of the housing, and the winding device includes A greenhouse is provided which is connected to a rotating shaft that extends in the ridge direction and winds up the sheet.

  The casing is an element that becomes a framework in the greenhouse according to the present invention, and can be formed into various pipes, round bars, square bars, or the like using materials such as wood, steel, or synthetic resin. The said housing is comprised from the standing member provided in the standing shape at predetermined intervals in the frontage direction, and the arch member provided in the arch shape between the upper part of this standing member. The rising member may be set upright or may be set up obliquely. Further, the lower part of the rising member can be fixed by being inserted into a base made of concrete or soil. In particular, by fixing the lower part of the rising member to a base made of a concrete block or the like and burying it in the soil, it is possible to realize a greenhouse that is not easily collapsed by wind or the like. Moreover, since the load of the greenhouse can be received by a base such as a concrete block, the problem of settlement such as sinking in the soil can be solved.

  In such a greenhouse, for example, a plurality of the rising members are provided on the left side and the right side with respect to the frontage direction at a predetermined interval, and the same number of arch members as the rising members are disposed between the upper parts of the rising members. A skeleton can also be constructed. The number of rising members and arch members used and the installation interval at this time can be appropriately set according to the size of the greenhouse to be erected and the required strength.

  In addition to the rising member and the arch member, the casing may be configured to have higher strength by using other members. For example, at the top position (and / or the intermediate position) of the arch member, a purlin member provided so as to connect the arch members arranged in the ridge direction, a purlin member connecting the arch members arranged in the ridge direction, The strength and position of the arch member can be further stabilized by providing a shed beam member that connects the lower end in the front direction, and an eaves member that connects the lower end side of the art member in the ridge direction. In addition, by connecting the arch members using a band, a joint, etc., it is possible to suppress the swing of the arch member, collapse of the greenhouse, damage or deterioration of the seat that can occur due to the swing of the arch member, etc. Can also be prevented.

  In the greenhouse according to the present invention, a winding device that winds up the sheet is provided at the upper end of the rising member or the lower end of the arch member, and the winding device rotates in the ridge direction and winds up the sheet. The shafts are connected. That is, since the sheet can be taken up by the rotating shaft, the sheet can be taken up evenly and smoothly without requiring a lot of manpower and labor to take up the sheet.

  Here, the sheet | seat used by this invention is demonstrated. There are no particular limitations on the type of sheet (material, color, etc.) that can be used, and the sheet can be selected and used as appropriate in consideration of the type of plant or fruit to be cultivated or the climate (or weather). For example, a sheet made of polyvinyl chloride may be used when it is desired to keep warmth in the house, or a hard sheet using polyolefin or fluororesin may be used when weather resistance is important. Further, it is desirable that a string for facilitating the winding operation is connected to the end portion of the sheet. By connecting the string to the end of the sheet, the sheet can be wound through the string when performing the winding operation, so there is no need to pull the sheet directly when winding, and the sheet itself is damaged or damaged. Can reduce the possibility of occurrence as much as possible.

  In addition, although the said sheet | seat may be comprised by one type of sheet | seat part like the past, in this invention, it is desirable to comprise the said sheet | seat by two or more types of sheet | seat parts which differ in a winding direction. This is because the seat can be used properly according to the climate (or weather) by configuring the seat with two or more types of seat portions. For example, when the sheet is composed of two types of sheet parts, a transparent sheet made of polyvinyl chloride and a sheet having a light-shielding property, in the case of normal weather (fine weather: temperature of about 20 degrees) When the weather becomes over 30 degrees, the transparent sheet part is rolled up and used, and the transparent sheet part is rolled up and the light-shielding sheet part is expanded and used. It is possible to provide a suitable environment for cultivated plants or fruits.

  In particular, in the present invention, it is still desirable to form at least a part of the sheet in a mesh shape. This is because, by forming at least a part of the sheet in a mesh shape, it is possible to finely adjust the illuminance of sunlight, the room temperature, or the amount of rainwater to be applied. Here, the mesh shape refers to a mesh shape, and the material and the fineness of the mesh can be appropriately set. For example, if you want to lower the illuminance of sunlight, you can use a sheet with a fine mesh (for example, a shading curtain), and if you want to prevent damage to birds and insects flying in the air, The damage can be minimized by using a mesh sheet according to it. For example, in order to prevent animal damage caused by birds, it is desirable that the mesh has a side length of 2 cm or less. These mesh-like sheet portions can be formed in a part of a transparent or translucent sheet portion. For example, a half in the winding direction is constituted by a mesh-like sheet portion, and a transparent or translucent sheet portion and The mesh-shaped sheet portion can be configured to be adjacent in the winding direction. Further, a mesh-like sheet portion can be provided so as to be part of a half region in the winding direction of the transparent or translucent sheet portion, for example, the center portion, the edge portion, or the dot portion.

  As described above, it is composed of two or more types of sheet parts including a mesh-like sheet part and a transparent or translucent sheet part, so that the living environment in the greenhouse is kept optimal, and rainy weather, fine weather, etc. It can respond quickly to changes in the weather. In other words, as in the past, it was difficult to finely adjust the room temperature in the greenhouse according to the climate (or weather) by just opening and closing the seat, but there were two or more types of seats. In particular, by forming at least a part of the sheet in a mesh shape, the roof portion of the greenhouse can be changed into a mesh-like sheet portion, or transparent or translucent by winding up or down the sheet. It is possible to arbitrarily adjust which of the sheet portions is covered. Therefore, it is possible to finely adjust the illuminance of sunlight, the room temperature, the amount of rainwater to be given, and the like, so that it is possible to provide a more suitable environment for the plant or fruit to be cultivated. Furthermore, by using a mesh of a size that does not allow birds to enter, a lot of light can be applied to crops such as fruit trees, and the problem of a decrease in light irradiation rate due to deterioration can be solved.

  In addition, it is desirable that the casing is provided with a sheet receiving portion including a roller that supports a sheet wound around the rotating shaft freely around the axis of the rotating shaft for each casing structural unit with a predetermined interval. By providing a sheet receiving portion with a roller that supports the casing freely around the axis of the rotation shaft, when the sheet is wound, the sheet receiving portion can be wound while the sheet is supported. Even if the sheet is formed in a long shape, the possibility of distortion or deformation caused by the weight of the sheet wound around the rotating shaft can be reduced as much as possible. The sheet receiving portion can be formed in an approximately arc shape (or “U” shape) in order to support the sheet wound around the rotating shaft so as to be freely rotatable around the axis of the rotating shaft. By forming the sheet receiving portion in an approximately circular arc shape, the wound sheet is supported on the sheet receiving portion so as to be freely rotatable around the rotation axis, and smooth winding becomes possible. The roller provided in the said sheet | seat receiving part is provided so that the outer peripheral surface of the wound sheet | seat may be supported, and there is no restriction | limiting in particular in the kind. Therefore, for example, a plastic roller, a plastic roller with a rubber ring attached to the outer periphery, a metal bearing roller, or the like can be used. In particular, by using a metal bearing roller, the frictional resistance can be reduced and a reliable rotational operation can be achieved.

  In the greenhouse according to the present invention, a winding device that winds up the sheet is provided at the upper end of the rising member or the lower end of the arch member of any one of the building structural units on the ridge direction end side of the building. Yes. As the configuration of the winding device, for example, a rotation drive unit that rotates the rotation shaft around the axis, and a support member that supports the rotation drive unit movably in the radial direction of the rotation shaft can be configured.

  The rotation drive unit is a power source that rotates the rotation shaft around the axis, and can be configured to rotate manually using a power source such as a motor or an engine. For example, in the case of manual configuration, a rotating shaft can be rotated around the axis (via a speed reducer or the like as necessary) by providing a handle or the like and manually rotating the handle. In particular, by using a worm reducer, etc., it is possible to reduce the time and cost required for the winding work because the sheet can be wound more efficiently with higher speed reduction and higher power. Become.

  In view of simplification of the sheet winding operation, the rotation drive unit may be configured to be automatically controllable. That is, when operating the rotational drive unit, it is preferable to separately provide a device that senses room temperature, rainfall, or wind speed, and a control mechanism that operates the rotational drive unit according to the sensed value. If the sheet can be wound based on the set conditions, it can be handled even by unattended, and cultivation at a lower cost is possible. More specifically, a power drive mechanism can be used as the rotation drive unit, and a temperature sensor, a rainfall sensor, an atmospheric pressure sensor, or the like can be provided, and the rotation drive unit can be configured to operate according to these detection results. For example, when rain is detected by the rain sensor, or when it is predicted by the atmospheric pressure sensor, the seat is operated to expand, and when the temperature sensor detects that the house is hot. It is desirable to wind up the sheet and cover it with a net. Moreover, in order to operate the said electrically driven rotational drive part, it can also form with a battery, a solar panel, and other electric power generation equipment.

  In the present invention, it is preferable that the support member has a guide groove that guides the rotary shaft in the radial direction by the thickness of the sheet wound by the rotary shaft. That is, in the above configuration, when the sheet is wound, the rotation shaft can move in the radial direction by the thickness of the sheet wound between the guide grooves. As a result, it is not necessary to fix the rotary shaft around the center of the sheet where the rotary shaft is wound, and the central portion of the rotary shaft can be avoided from floating in the air. Therefore, even when the rotating shaft is formed to be long, the possibility of distortion or deformation of the shaft can be reduced as much as possible. That is, by adopting the above-described configuration, it is possible to reduce the load on the rotating shaft, and since the shaft is not distorted, smooth winding becomes possible.

Further, as described above, when a string for facilitating the winding operation is connected to the end portion of the sheet, a string winding portion for winding the string is provided on the rotating shaft. Is desirable. And the said string winding-up part is the groove | channel shape diameter-reduced in the rotating shaft, Comprising: In the state which wound the string connected to the sheet | seat, it is formed in the depth which becomes flush with other parts. Is desirable. With the above configuration, when winding the sheet, the string can be wound first, and the string can be stored in the string winding portion, and the wound string is convex with respect to the rotation axis. Therefore, the sheet can be wound up without damaging the sheet.

  In the vinyl sheet according to the present invention, a winding device for winding the sheet is provided at the upper end of the rising member or the lower end of the arch member, and the winding device rotates in the ridge direction and winds the sheet. The shafts are connected. That is, since the sheet can be taken up by the rotating shaft, the sheet can be taken up evenly and smoothly without requiring a lot of manpower and labor to take up the sheet.

  In addition, it is possible to finely adjust the illuminance of sunlight, room temperature, or the amount of rainwater to be applied, etc., by configuring the sheet with two or more types of sheet parts, and forming at least a part of the sheet in a mesh shape Therefore, it becomes possible to provide a suitable environment depending on the plant or fruit to be cultivated.

  In the greenhouse according to the present invention, a winding device that winds up the sheet is provided at the upper end of the rising member or the lower end of the arch member of any one of the building structural units on the ridge direction end side of the building. Yes. As a structure of the said winding apparatus, it can comprise, for example from the rotation drive part which rotates a rotating shaft around an axis | shaft, and the support member which supports the said rotation drive part. In particular, in the present invention, when winding the sheet, the support member has a guide groove for guiding the rotation shaft in the radial direction by the thickness of the sheet wound by the rotation shaft. The rotating shaft can move in the radial direction by the thickness of the sheet wound between the guide grooves. As a result, it is not necessary to fix the rotary shaft around the circular center position of the sheet, and the rotation shaft can be avoided from floating in the air. Even when formed into a long shape, the possibility of distortion or deformation of the shaft can be reduced as much as possible. Therefore, by adopting the above configuration, it is possible to reduce the burden on the rotating shaft and to prevent the shaft from being distorted and to smoothly wind the sheet.

The front view of the greenhouse concerning this Embodiment. The principal part side surface schematic diagram which shows the structure of a winding apparatus. The principal part front schematic diagram which shows the structure of a winding apparatus. The AA cross-section schematic which shows the structure of a sheet | seat receiving part. The perspective schematic diagram which shows the structure of a sheet | seat. The perspective schematic diagram which shows the structure of the string connected to a sheet | seat. The principal part front schematic diagram which shows the mode which winds a string by a string winding part.

  Hereinafter, the greenhouse according to the present embodiment will be specifically described with reference to the drawings. FIG. 1: has shown the front view of the greenhouse concerning this Embodiment. As shown in FIG. 1, the greenhouse V according to the present embodiment is provided in an arch shape between a rising member 11 provided in a rising shape at a predetermined interval in the frontage direction and an upper portion of the rising member 11. A frame 10 composed of the formed arch member 12 is used as a framework, and a sheet 50 is stretched on the frame 10. The casing 10 is made of a synthetic resin and formed in a pipe shape. A plurality of rising members 11 are provided on the left side and the right side with respect to the frontage direction at a predetermined interval, and the same number of arch members as the rising members 11 are provided. By arranging 12 between the upper parts of the rising members 11, it functions as a framework.

  In the present embodiment, there is no protrusion on the upper part of the arch member 12, and the lower end of the rising member 11 is fixed by a fixing member 16 such as a block. Further, in the present embodiment, a girder member (not shown) is provided so as to support the arch member 12 at the top position and the intermediate position of the arch member 12, and the arch members 12 are connected to each other using a joint. As a result, the swing of the arch member 12 can be effectively suppressed, and the vinyl house V can be prevented from collapsing, and the sheet 50 can be prevented from being damaged or deteriorated due to the swing of the arch member 12.

  Further, the truss member 15 is provided above the rising member 11, so that the strength is maintained so that the whole does not collapse even when a wind pressure or an unexpected load is applied due to a gust of wind. The presence of the truss member 15 allows a person to go back and forth through the truss member 15 so that the sheet 50 can be easily spread or wound. Further, a lift device 30 is provided on the ridge direction end portion side of the housing 10 so that the heavy seat 50 can be moved up and down electrically or manually. The sheet pulled up by the lift device 30 can be wound around the rotary shaft 21 by using a hanger member 31 that is detachably locked to the side wall surface of the housing 10. That is, a plurality of hanger members 31 in which rollers are arranged in a U-shape are provided on the side wall surface of the housing 10 in the ridge direction, and a rotating shaft is placed on the hanger member 31. The sheet can be taken up while the rotating shaft is rotated, and the sheet can be pulled up by the lift device 30. By providing the lift device 30, for example, even when the rising member 11 is formed in a long shape, the sheet 50 can be installed without difficulty with respect to the winding device 20 to be described later. Can greatly reduce the time and effort required. The lift device 30 is formed so that it can be brought down when not used (or used). Further, in the case of a continuous building type in which a plurality of greenhouses are provided adjacent to each other, the lift device 30 can be used to move the lifted vinyl sheet to the next greenhouse. That is, when the vinyl sheet is first lifted, the lift device 30 can be removed and installed in the adjacent greenhouse, and the lifted vinyl sheet can be pulled to the adjacent greenhouse.

  Further, in the greenhouse V according to the present embodiment, a plurality of structural units of the casing 10 are arranged at predetermined intervals in the ridge direction, and the rising members 11 on the ridge direction end side of the casing 10 are arranged. A winding device 20 for winding the sheet 50 is provided at the upper end. As shown in FIG. 2, a rotating shaft 21 that extends in the ridge direction and winds up the sheet 50 is connected to the winding device 20. That is, since the sheet 50 can be wound by the rotating shaft 21, the sheet 50 can be wound evenly and smoothly without requiring much manual labor and labor for winding the sheet 50. .

  As shown in FIGS. 2 and 3, the winding device 20 includes a rotation drive unit 22 that rotates the rotation shaft 21 around the axis, and a support member 23 that supports the rotation drive unit 22. In the present embodiment, the rotational drive unit 22 is constituted by a handle, the handle is connected to the drive gear 27, and the rotation power is transmitted from the drive gear 27 to the driven gear 28 by rotating the handle. The rotational power is transmitted to the rotating shaft 21. As a result, the rotation shaft 21 can be rotated around the axis by rotating the handle. In the present embodiment, the drive gear 27 is installed above the driven gear 28, but the installation location is not particularly limited. Further, it is desirable that the driving gear 27 or the driven gear 28 is provided with a check mechanism such as a ratchet mechanism so that the stretched state of the sheet can be maintained, and unintended sheet feeding due to wind or the like is prevented.

  The winding device 20 is provided with a pressing wire winding shaft 26 and is configured to be able to wind up a pressing wire (not shown) by rotating a rotation driving unit 22 ′ formed of a handle. The pressing line referred to here is a string-like or belt-like member that prevents the sheet 50 from being blown off by wind and rain or the tension of the sheet 50 becoming loose when the sheet 50 is stretched. By adjusting the pressing line to be stretched or loosened, the sheet 50 can be securely stretched without dropping. That is, when the sheet is wound or fed out, the pressing line is loosened, and when the sheet is extended, the pressing line is wound up and the sheet is tightened. Further, it is desirable that the pressing wire winding shaft 26 is provided with a check member such as a ratchet mechanism so that the tensioned state (tight state) of the pressing wire can be maintained.

  Further, the support member 23 includes a guide groove 24 that guides the rotary shaft 21 in the radial direction by the thickness of the sheet 50 wound by the rotary shaft 21. That is, in the configuration according to the present embodiment, when the sheet 50 is wound, the rotation shaft can move in the radial direction by the thickness of the sheet 50 wound between the guide grooves 24. As a result, it is not necessary to fix the rotary shaft 21 to the circular center position of the sheet 50 around which the rotary shaft 21 is wound, and the central portion of the rotary shaft 21 can be avoided from floating in the air. Therefore, even if the rotary shaft 21 is formed in a long shape, the possibility of distortion or deformation of the shaft can be reduced as much as possible. Therefore, by adopting the above-described configuration, the burden on the rotating shaft 21 can be reduced, and since the shaft is not distorted or the like, smooth winding is possible.

  The support member 23 supports a rotation module 37 including a rotation drive unit 22 formed of a handle, the drive gear 27, and a driven gear 28. Specifically, an opening is formed through which the arm portion 36 formed on the upper end side of the frame 36 that integrates them is passed, and a fixing bolt 35 is attached to the upper end of the arm portion 36 that penetrates the opening. Thus, the rotation module is prevented from falling. In particular, by providing a plurality of bolt mounting holes at predetermined intervals in the arm portion 36, the height position of the rotation module 37 relative to the support member 23, more specifically, the height position to be supported can be arbitrarily set. Can be set. Therefore, if the rotation module 37 is supported at a high position in a state where the sheet is wound around the rotation shaft, the weight of the rotation module is supported by the support member 23, and it does not act on the wound sheet. Since there is no such problem, problems such as sticking of the wound sheets can be solved.

  In particular, in the present embodiment, sheet receiving portions 13 are provided at predetermined intervals in the ridge direction with respect to the housing 10. As shown in FIGS. 2 and 4, the sheet receiving portion 13 includes a roller 14 that supports the sheet 50 wound around the rotation shaft 21 so as to freely rotate around the rotation shaft 21. Further, a pressing wire shaft hole 29 is provided below the sheet receiving portion 13 so that the pressing wire shaft 26 is passed therethrough. The sheet receiving portion 13 is formed in an approximately arc shape, is supported by a base portion 40, and includes a plurality of metal bearing rollers 14. With the above configuration, when the sheet 50 is wound, the sheet receiving portion 13 can be wound while the sheet 50 is supported, so even if the sheet 50 is formed in a long shape, the rotating shaft The possibility that distortion or deformation occurs due to the weight of the sheet 50 wound by 21 can be reduced as much as possible. As described above, by forming the sheet receiving portion 13 in an approximately arc shape, the wound sheet 50 is supported on the sheet receiving portion 13 so as to be freely rotatable around the rotation shaft 21 and can be smoothly wound. become. In addition, by winding the sheet winding direction clockwise as shown by the arrow in FIG. 4 through the upper part of the rotating shaft, there is no risk of rainwater entering between the wound sheets. Problems such as sticking to each other can be avoided.

  As shown in FIG. 5, in the present embodiment, the sheet 50 is composed of two or more types of sheet portions that differ in the winding direction, and a part of the sheet is formed in a mesh shape. By configuring the seat 50 with two or more types of seat portions, the seat 50 can be used properly according to the climate (or weather). In the present embodiment, the sheet 50 is composed of two types of sheet portions, that is, a transparent sheet formed of polyvinyl chloride and a mesh-shaped sheet having light shielding properties. If the temperature is about 20 degrees), use a transparent sheet part. If the weather gets above 30 degrees, wind up the transparent sheet part and use a light-shielding mesh sheet part. Therefore, it is possible to provide a suitable environment for cultivated plants or fruits. Furthermore, by using a mesh-like sheet, damage can be minimized when it is desired to prevent damage to birds, insects, and the like flying in the air. Therefore, as in the past, it was not possible to finely adjust the room temperature in the greenhouse according to the climate (or weather) by simply opening and closing one type of seat, but the seat 50 is composed of two or more types of seat portions. In particular, by forming at least a part of the sheet in a mesh shape, it is possible to finely adjust the illuminance of sunlight, the room temperature, or the amount of rainwater to be applied, simply by winding or feeding the sheet. Therefore, it becomes possible to provide a suitable environment depending on the plant or fruit to be cultivated.

  In particular, in the present embodiment, the base end side of the transparent or translucent sheet portion is fixed to the rotating shaft. This fixing can be performed using, for example, an adhesive tape 53 or the like. A mesh-like sheet portion formed so that one side has an opening of about 2 cm is connected to the leading end side of the transparent or translucent sheet portion. This mesh-like sheet portion is passed through a reinforcing cord such as a nylon cord in the length direction (winding direction), and a winding cord 52 made of stainless steel wire or the like is attached to the leading end side of the nylon cord. Is provided. The leading end side of the string 52 is connected to a rotation shaft (particularly the string winding portion 52) for winding the string, and the string 52 can be wound by rotation of the rotation shaft. In the sheet 50 thus configured, when the greenhouse is not used, a transparent or translucent sheet portion can be wound around the rotating shaft, and a net-like sheet portion can be wound thereon. In this regard, if the net-like sheet portion is taken up and then the transparent or translucent sheet portion is taken up, the transparent or semi-transparent sheet is obtained due to the cushioning property of the taken-up net-like sheet portion. It becomes difficult to wind the part. Therefore, by fixing the base end side of the transparent or translucent sheet portion to the rotating shaft as described above, the sheet can be wound evenly and compactly without distortion. In the present embodiment, it is desirable to install the string 52 for winding at intervals of 5 m to 10 m.

  Further, as shown in FIG. 6, a string 52 for facilitating the winding operation is connected to the end portion of the sheet 50 (more specifically, the end portion of the net-like sheet portion). Since the string 52 is connected to the sheet 50 through the string passing hole 51, the sheet 50 can be wound through the string 52 when starting the winding operation for the first time. Therefore, there is no need to pull the sheet 50 directly when winding, so the possibility of damage or damage to the sheet 50 itself can be reduced as much as possible, and sheet feeding in the rafter direction (arch member extending direction) is simplified. Can be done. The string 52 may be a thin string 52 such as a stainless wire as shown in FIG. 6A, or a belt-like string 52 as shown in FIG. 6B. By using the belt-like string 52, when the sheet 50 is wound up, it is not cut even if the string 52 is pulled, and the winding work can be performed safely. On the other hand, when a thin string 52 such as a stainless steel wire is used, the string can be wound around the string winding portion even if it is sufficiently long.

  Further, in the present embodiment, as shown in FIG. 7, a string winding portion 25 for winding the string 52 is provided on the rotating shaft 21. The string winding portion 25 has a groove shape with a reduced diameter on the rotary shaft 21, and is formed to a depth that is flush with the other portions when the string 52 connected to the sheet 50 is wound. Yes. With the above configuration, when the sheet 50 is wound, the string 52 can be wound first, and the string 52 can be stored in the string winding portion 25. Therefore, the sheet 50 can be wound up without damaging the sheet 50. In addition, although the belt-like string 52 is used in FIG. 7, in order to wind up a longer string, the string has a small diameter and sufficient strength such as a stainless steel wire. Is desirable.

V greenhouse
10 box
11 Rising member
12 Arch members
13 Seat holder
14 Roller
15 Truss members
16 Fixing member
20 Winding device
21 Rotation axis
22 Rotation drive
23 Support member
24 Guide groove
25 String winding part
26 Holding wire take-up shaft
27 Drive gear
28 Driven gear
29 Holding wire winding shaft hole
30 Lifting device
40 foundation
50 seats
51 String hole
52 string

Claims (5)

It is equipped with a frame that is a framework and a sheet that is spread on this framework
The housing includes a housing structural unit including a rising member provided in a rising shape with a predetermined interval in the frontage direction and an arch member provided in an arch shape between the upper portions of the rising members in the building direction. Are arranged side by side with an interval of
A winding device for winding the sheet is provided at the upper end of the rising member or the lower end of the arch member of the building structural unit on the ridge direction end side of the building,
A vinyl house characterized in that the winding device is connected to a rotating shaft that extends in the ridge direction and winds up the sheet.
The greenhouse according to claim 1, wherein the sheet is composed of two or more kinds of sheet portions different in a winding direction, and at least a part of the sheet is formed in a mesh shape.
The said housing is provided with the sheet receiving part provided with the roller which supports the sheet wound up by the rotating shaft freely around the axis of a rotating shaft for every housing structural unit which gave a predetermined interval. The greenhouse according to 1 or 2.
The take-up device supports a rotation drive unit that rotates the rotation shaft about the axis, supports the rotation drive unit, and guides the rotation shaft in the radial direction by the thickness of the sheet wound by the rotation shaft. The greenhouse according to any one of claims 1 to 3, comprising a support member having a guide groove.
The rotary shaft is provided with a string winding portion for winding the string connected to the sheet,
The said string winding part is the groove | channel shape diameter-reduced in the rotating shaft, Comprising: It is formed in the depth which becomes the same as another part in the state which wound the string connected to the sheet | seat. The greenhouse according to any one of 1 to 4.