JP7678015B2 - Vinyl greenhouse frame, vinyl greenhouse, and installation method thereof - Google Patents

Description

The present invention relates to a greenhouse frame, a greenhouse, a method for installing a greenhouse frame, and a method for installing a greenhouse.

Plastic greenhouses are generally used for agricultural and horticultural purposes, and generally consist of a frame that is fixed to the farmland and a vinyl sheet attached to the frame. Many plastic greenhouses are arch-shaped (a shape that includes a long, extending ridge with a roof that curves down to the side and side walls that extend downward from the bottom of the roof toward the ground).

Since vinyl greenhouses are usually installed outdoors, they can collapse due to typhoons, strong winds, heavy snow, etc. As a countermeasure, various structures have been proposed to improve the strength of vinyl greenhouses.

For example, Patent Document 1 proposes a framework structure for a vinyl greenhouse in which a vertical frame made up of an inner vertical pipe and an outer vertical pipe connected via connecting fittings is connected at intervals to multiple horizontal pipes arranged in the ridge direction to form the roof surface and side surfaces.

According to the description in Patent Document 1, the vertical frame is constructed by connecting the upper ends of a pair of left and right lateral vertical frames via a joint material at the center of the roof surface. The joint material is formed in a roughly mountain shape, and a first connector that connects the inner vertical pipes of the pair of left and right lateral vertical frames and a second connector that connects the outer vertical pipes of the pair are connected by a connector of a predetermined length.

JP 2012-23969 A

However, in order to install the greenhouse frame structure described in Patent Document 1, it is necessary to provide a vertical frame on one side made of double pipes, inside and outside, connected by connecting metal fittings, and further connect the vertical frame on one side using joint materials. In this way, the greenhouse frame structure described in Patent Document 1 employs a double-structure frame structure to increase strength. This is thought to result in a stronger structure than an arch-shaped single-structure frame structure, but the use of a double structure makes installation more time-consuming and increases installation costs. There is a demand for a greenhouse frame or greenhouse that is stronger than an arch-shaped single-structure frame structure, even if it is a single structure.

In addition, vinyl greenhouses that use the vinyl greenhouse frame structure described in Patent Document 1 are long in the ridge direction. As a result, heat and air inside the vinyl greenhouse (hereinafter also simply referred to as "inside the greenhouse") are difficult to move naturally, especially in the ridge direction, and the operating costs of ventilation equipment to promote the movement of heat and air are high. For this reason, there is a demand for vinyl greenhouse frames and vinyl greenhouses that allow heat and air to move easily and naturally throughout the greenhouse.

The present invention aims to provide a vinyl greenhouse framework, a vinyl greenhouse, and an installation method thereof that can increase strength and facilitate the natural movement of heat or air throughout the greenhouse.

In order to achieve the above object, the framework for a vinyl greenhouse according to the first aspect of the present invention comprises:
a plurality of first side wall framework portions disposed at intervals on a circumference of a circle or an ellipse on the mounting surface and extending upward from the mounting surface;
a plurality of first roof frame portions connected to each of the plurality of first side wall frame portions and extending upward and inward;
A first top structure attached to the plurality of first roof frame portions and protruding upward beyond the plurality of first roof frame portions;
a plurality of second side wall framework portions disposed at intervals on the circumference of a circle or an ellipse on the mounting surface and extending upward from the mounting surface;
a plurality of second roof frame portions connected to each of the plurality of second side wall frame portions and extending upward and inward;
A second top structure attached to the plurality of second roof frame portions and protruding upward beyond the plurality of second roof frame portions;
a communication portion that forms a communication opening that communicates between a first interior, which is a space surrounded by the plurality of first side wall framework portions, the plurality of first roof framework portions, and the first top structure, and a second interior, which is a space surrounded by the plurality of second side wall framework portions , the plurality of second roof framework portions, and the second top structure;
The communication portion is provided at a connection portion between the plurality of first side wall framework portions and the plurality of second side wall framework portions that are arranged so as to form a common chord when viewed from above.
The first top structure comprises:
a first ventilation section that forms a first opening for communicating the first interior with the outside;
a first body portion which is a cylindrical member connected to upper ends of the plurality of first roof frame portions and extending upward, and in which the first ventilation portion is provided and which forms the first opening penetrating the member in a lateral direction;
A first top framework portion attached to an upper end portion of the first body portion so as to cover at least a portion of the upper portion of the first body portion;
and a first ventilation auxiliary framework portion extending laterally from the first body portion below the plurality of first ventilation portions.

In order to achieve the above object, the vinyl greenhouse according to the second aspect of the present invention comprises:
The vinyl greenhouse framework;
a first side wall sheet and a second side wall sheet which are sheets attached to the first side wall frame portion and the second side wall frame portion , respectively;
The roof structure further comprises a first roof sheet and a second roof sheet which are sheets attached to the first roof frame portion and the second roof frame portion , respectively.

In order to achieve the above object, a method for installing a vinyl greenhouse frame according to a third aspect of the present invention comprises the steps of:
a plurality of first side wall frame parts extending linearly and a plurality of first roof frame parts extending linearly and connected to each of the plurality of first side wall frame parts by being curved or bent, are installed on the installation surface such that the plurality of first side wall frame parts extend upward from the installation surface at intervals on the circumference of a circle or an ellipse on the installation surface, and the plurality of first roof frame parts extend upward and inward;
Attaching a first top structure to the plurality of first roof frame portions so as to protrude upwardly beyond the plurality of first roof frame portions;
,
a plurality of second side wall frame parts extending linearly and a plurality of second roof frame parts extending linearly and connected to each of the plurality of second side wall frame parts by being curved or bent, are installed on the installation surface such that the plurality of second side wall frame parts extend upward from the installation surface at intervals on a circumference of a circle or an ellipse on the installation surface, and the plurality of second roof frame parts extend upward and inward;
and attaching a second top structure to the second roof frame portions so as to protrude upwardly beyond the second roof frame portions;
The first and second side wall framework portions are arranged to form a common chord when viewed from above.
The first top structure comprises:
a first ventilation section that forms a first opening for communicating the first interior with the outside;
a first body portion which is a cylindrical member connected to upper ends of the plurality of first roof frame portions and extending upward, and in which the first ventilation portion is provided and which forms the first opening penetrating the member in a lateral direction;
A first top framework portion attached to an upper end portion of the first body portion so as to cover at least a portion of the upper portion of the first body portion;
and a first ventilation auxiliary framework portion extending laterally from the first body portion below the plurality of first ventilation portions.

In order to achieve the above object, a method for installing a vinyl greenhouse according to a fourth aspect of the present invention comprises the steps of:
Installing a vinyl greenhouse frame by the vinyl greenhouse frame installation method;
and attaching a sheet to the installed greenhouse framework.

The present invention makes it possible to increase strength and facilitate the natural movement of heat and air throughout the greenhouse.

1 is a front view of a vinyl greenhouse according to a first embodiment of the present invention. 1A is a front cross-sectional view of a greenhouse in accordance with embodiment 1, taken approximately at the center in the front-to-rear direction; FIG. 1B is an enlarged view of the area surrounded by the dashed line b in FIG. 1A; and FIG. 1C is an enlarged view of the area surrounded by the dashed line c in FIG. FIG. 2 is a front view of the framework according to the first embodiment. FIG. 2 is a plan view of a framework according to the first embodiment. FIG. 2 is a right side view of the framework according to the first embodiment. FIG. 2 is a diagram showing a flow of a method for installing a vinyl greenhouse according to the first embodiment of the present invention. FIG. 6B is a diagram showing details of the framework installation process flow shown in FIG. 6A. 1A is a front view of the first top structure of variant example 1; FIG. 1B is a plan view of the first top structure; FIG. 1C is a cross-sectional view taken along line VIIc-VIIc of FIG. 1B, showing the first ventilation section blocked by the lid; and FIG. 1D is a cross-sectional view similar to FIG. 1C, showing the first ventilation section opened. 11A is a cross-sectional view of a portion of a vinyl greenhouse provided with a shelf member, the portion corresponding to FIG. 2, and FIG. 11B is a plan view of the shelf member. FIG. 11 is a front view of a vinyl greenhouse according to modified example 3. FIG. 11 is a plan view of a vinyl greenhouse according to a second embodiment of the present invention. 11 is a cross-sectional view taken along line XI-XI of FIG. 12 is a cross-sectional view taken along line XII-XII in FIG. 10 . 11 is a diagram showing a flow of a method for installing a vinyl greenhouse according to embodiment 2 of the present invention. FIG. FIG. 13B is a diagram showing details of the framework installation process flow shown in FIG. 13A. FIG. 11 is a plan view of a vinyl greenhouse according to a fourth modified example.

The following describes an embodiment of the present invention with reference to the drawings. The same elements are designated by the same reference numerals throughout the drawings.

<First embodiment>
(Configuration of the vinyl greenhouse 100 according to the first embodiment)
The vinyl greenhouse 100 according to the first embodiment of the present invention is a facility that is installed on an installation surface P and is used for agriculture, horticulture, and the like. The installation surface P is typically the ground of farmland. The direction in which the installation surface P faces is upward, and the opposite direction is downward.

As shown in Figures 1 and 2, the vinyl greenhouse 100 generally includes a cylindrical first side wall 101, a truncated cone-shaped first roof 102 that is connected to the upper end of the first side wall 101 and protrudes upward, and a first apex 103 that protrudes upward from the center of the first roof 102. This separates the first interior 104, which is the indoor space of the vinyl greenhouse 100, from the exterior 105, and allows plants such as crops to be grown in a controlled environment in the first interior 104.

Here, Fig. 1 is a front view of the vinyl greenhouse 100. Fig. 2(a) is a front cross-sectional view of the vinyl greenhouse 100 at approximately the center in the front-rear direction, (b) is an enlarged view of the part surrounded by the dashed dotted line b in (a), and (c) is an enlarged view of the part surrounded by the dashed dotted line c in (a).

The greenhouse 100 generally comprises a frame 106, a vinyl sheet 107, and a first door 108.

The framework 106 is a framework for a vinyl greenhouse, and forms the basic structure of the vinyl greenhouse 100. The framework 106 is constructed by connecting metal pipes, metal tubes, metal plates, etc., and its lower end is fixed to the installation surface P. Metal pipes are connected to each other, metal pipes to metal tubes, or metal pipes to metal plates by fitting, screwing, bolt and nut fitting, connectors (not shown), etc. Connectors of this type are, for example, components generally called joints, clamps, etc. The material of the framework 106 is not limited to metal, and may be resin, etc.

As shown in Figures 3 to 5, the framework 106 generally comprises a first door frame portion 109, a plurality of first side wall framework portions 110, a plurality of first roof framework portions 111, a first top structure 112, and a first water sprinkler pipe 113.

Here, Figures 3 to 5 are a front view, a plan view, and a right side view of the framework 106, respectively.

The first door frame portion 109 is a portion of the first side wall 101 that forms an entrance connecting the first interior 104 and the exterior 105 of the greenhouse 100, and the first door 108 is attached to it. The first door frame portion 109 in this embodiment is composed of a roughly rectangular member with its top, bottom, left and right sides connected. The first door frame portion 109 has multiple legs (not shown) extending downward from its lower end, and is fixed to the installation surface P by being buried in the legs.

Entrances are not only for people to enter and exit, but also for agricultural tools and machinery, so they should be of an appropriate size to allow these things to enter and exit.

In this embodiment, the direction is defined with the position of the first door 108 being the front. In the explanation of the embodiment, the terms front, back, left and right are used to indicate directions, but these are used for the purpose of explanation and are not intended to limit the present invention.

The first door frame portion 109 only needs to be fixed to the installation surface P, and the method for doing so is not limited to embedding the legs. For example, the first door frame portion 109 may not include the lower edge portion, and the lower ends of the left and right edges may be embedded and fixed to the installation surface P, or the left and right edges may be fixed to the first sidewall framework portion 110. The first door 108 may also be attached to the first sidewall framework portion 110, and in this way, a part (e.g., the left and right edges) or the entirety of the first door frame portion 109 may be formed of the first sidewall framework portion 110 rather than a separate member.

The multiple first sidewall framework parts 110 are frameworks that are installed on the installation surface P to form the generally cylindrical first sidewall 101, and each is composed of, for example, a metal pipe. When viewed from above, the multiple first sidewall framework parts 110 are installed at approximately equal intervals on a circumference on the installation surface P, and extend upward from the installation surface P. The diameter of the circumference on which the multiple first sidewall framework parts 110 are installed on the installation surface P is typically about 3 m (meters) to 6 m.

The shape of the multiple first sidewall framework parts 110 installed on the installation surface P when viewed from above is not limited to a circle, but may be, for example, an ellipse. In this case, the multiple first sidewall framework parts 110 are installed at intervals on the circumference of the ellipse on the installation surface P. Furthermore, the intervals between the multiple first sidewall framework parts 110 on the installation surface P are not limited to equal intervals, but may be changed as appropriate.

In this embodiment, when viewed from above, the four first sidewall framework parts 110 arranged on the front, rear, left and right sides have a larger diameter than the other first sidewall framework parts 110. The thick first sidewall framework part 110 arranged at the front extends upward from the upper edge part (upper part) of the first door frame part 109 in order to accommodate the first door frame part 109.

In other words, the thick first sidewall framework portion 110 located in the front is not provided below a predetermined height. This forms a space (opening) for providing the first door frame portion 109 between the first sidewall framework portions 110 located to the left and right of the thick first sidewall framework portion 110 located in the front. The first door frame portion 109 is fitted into this opening. The first door frame portion 109 may be fixed to the first sidewall framework portions 110 located to the left and right of the thick first sidewall framework portion 110 located in the front, for example, by an appropriate fastener.

Each of the multiple first sidewall frame parts 110, except for the thick front first sidewall frame part 110, is fixed to the installation surface P by having its lower end embedded in the installation surface P.

The multiple first sidewall framework parts 110 are connected by two upper and lower reinforcing band parts 114. Each reinforcing band part 114 is a thin strip-shaped metal plate, and is fixed to each of the multiple first sidewall framework parts 110, for example, by bolts and nuts, in a curved state so as to be inscribed in the multiple first sidewall framework parts 110. Each of the multiple first sidewall framework parts 110 may be fixed by screwing a connector such as a saddle band to each of the reinforcing band parts 114.

The lower reinforcing band portion 114 is positioned so that its lower end is in contact with the installation surface P or is located slightly (several centimeters) above the installation surface P. The lower reinforcing band portion 114 is curved in an arc shape that inscribes the first side wall framework portion 110, whose lower end is embedded in the installation surface P.

The upper reinforcing band portion 114 is positioned so that its lower end is located at a height of approximately 180 cm (centimeters) to 210 cm above the installation surface P. The upper reinforcing band portion 114 is curved in an annular shape that is inscribed in the multiple first side wall framework portions 110.

The height and number of reinforcing band portions 114 may be changed as appropriate.

The first roof frame parts 111 are parts that connect to the first side wall frame parts 110 and extend upward and inward, and each is made of, for example, a metal pipe. Here, inward means the direction from the circumference on which the first side wall frame parts 110 are installed on the installation surface P toward the inside when viewed from above.

In this embodiment, each of the multiple first roof frame parts 111 extends, when viewed from above, toward the center of the circumference on which the multiple first side wall frame parts 110 are installed on the installation surface P. A first top structure 112, which will be described in detail later, is attached to the upper end of each of the multiple first roof frame parts 111.

In other words, the multiple first roof framework parts 111 in this embodiment extend radially and generally linearly diagonally downward from the first top structure 112 to form a truncated cone-shaped first roof 102, and then curve or bend downward to connect to each of the multiple first sidewall framework parts 110.

The first roof frame section 111 and the first side wall frame section 110, which are connected to each other, are made of metal pipes or the like that are connected by fitting at appropriate locations.

The metal pipes constituting the first roof framework section 111 and the first side wall framework section 110, which are connected to each other, may be connected at appropriate locations using connectors or the like instead of fitting together, and may be formed integrally, for example, by bending a single metal pipe.

The first top structure 112 is a part that is attached to the multiple first roof frame parts 111 and protrudes upward beyond the multiple first roof frame parts 111.

The first top structure 112 in this embodiment is attached to the upper ends of the multiple first roof frame sections 111 as described above, and includes a body section 115, a top frame section 116, and a ventilation assistance frame section 117.

The body 115 is a generally cylindrical member, and is made, for example, by connecting curved thin metal plates together with rivets, welding, etc. The body 115 is provided with a plurality of insertion holes 118 and a plurality of first ventilation sections 119.

The multiple insertion holes 118, as shown in FIG. 2(b), are portions that form holes into which the upper ends of the multiple first roof frame parts 111 are respectively inserted, and are provided in a circumferential manner at approximately equal intervals at a predetermined height from the lower end of the body part 115. As shown in FIG. 2(b), a pin 120 that penetrates the first roof frame part 111 radially inside the body part 115 is inserted in the upper end of each of the first roof frame parts 111 inserted into the insertion holes 118 is inserted in the approximately horizontal direction. Both ends of the pin 120 protrude outside the first roof frame part 111, so that the upper end of each of the first roof frame parts 111 is locked so that it does not come out of the insertion holes 118.

As shown in FIG. 2(c), each of the first ventilation sections 119 forms a first opening for communicating between the first interior 104 and the exterior 105. The first opening penetrates the body 115 laterally.

Here, the side is a direction that intersects with the up-down direction. As described above, the first interior 104 is the room inside the vinyl greenhouse 100, and in the framework 106, which is the structure excluding the vinyl sheet 107, it is a space that is generally surrounded by the multiple first sidewall framework parts 110 and the first top structure 112.

In addition, there may be only one first ventilation section 119.

The top frame portion 116 is composed of four elongated strip-shaped metal plates. The top frame portions 116 are curved and overlap each other at the center, and each end is fixed to the upper end of the body portion 115 by screws, rivets, welding, or the like. As a result, when viewed from above, the multiple top frame portions 116 extend radially in eight directions at equal angular intervals from the center of the circumference of the installation surface P on which the multiple first side wall frame portions 110 are installed, covering a portion of the upper part of the body portion 115.

The ventilation assistance framework 117 is a member that extends laterally from the torso 115, and is provided below the multiple first ventilation sections 119 and above the multiple insertion holes 118. The ventilation assistance framework 117 in this embodiment is four rod-shaped members that extend radially laterally from the torso 115, and is made of metal, for example, with one end fixed to the torso 115 by welding, bolts, etc.

The ventilation assistance framework 117 may be made up of one or more rod-shaped members, and if it is made up of multiple rod-shaped members, it may further include an annular member connecting the tips of the multiple rod-shaped members.

The first sprinkler pipe 113 is a pipe formed in a generally circular shape with ends spaced a predetermined distance apart, and is attached to a number of first roof framework sections 111. The first sprinkler pipe 113 is provided with a number of sprinkler ports 121, which are small holes for sprinkling water into the first interior 104 (e.g., the interior downward). When water is supplied from one end of the first sprinkler pipe 113, the water is sprinkled from each of the sprinkler ports 121 into the first interior 104, and the remaining water is drained from the other end of the first sprinkler pipe 113.

The first sprinkler pipe 113 may be attached to each of the first roof frame parts 111 with a connector (not shown) such as a joint or clamp. Providing the first sprinkler pipe 113 not only makes it easier to sprinkle water into the first interior 104, but also reinforces the first roof frame parts 111.

The first watering pipes 113 may be provided in multiple stages in the vertical direction, or may not be provided at all.

The vinyl sheet 107 is a sheet that is attached to the framework 106, and is a transparent or translucent member made of vinyl. The vinyl sheet 107 may be attached to the framework 106 using a mounting fixture (not shown). This mounting fixture may be, for example, a device that fits around part of the circumference of the pipe that constitutes the framework with the vinyl sheet 107 wrapped around it, a device that clamps around part of the circumference of the pipe with the vinyl sheet 107 wrapped around it, or a stake for fixing the bottom end of the vinyl sheet 107 to the installation surface P.

The material of the sheet attached to the framework 106 is not limited to vinyl, but may be other resins. If necessary, an opaque sheet may be used.

The vinyl sheet 107 includes a first sidewall sheet 122, a first roof sheet 123, and a first top sheet 124, as shown in Figures 1 and 2.

The first sidewall sheet 122 is a sheet that is attached to a plurality of first sidewall framework parts 110. The first sidewall sheet 122 constitutes the first sidewall 101 together with the first sidewall framework parts 110. In this embodiment, the number of first sidewall framework parts 110 is sufficiently large, so that the first sidewall 101 is generally cylindrical.

The first roof sheet 123 is a sheet that is attached to multiple first roof frame parts 111. The first roof sheet 123, together with the first roof frame parts 111, constitutes the first roof 102. In this embodiment, the number of first roof frame parts 111 is sufficiently large, so that the first roof is roughly frustum-shaped.

When the number of first sidewall framework parts 110 and the number of first sidewall framework parts 110 are small (e.g., eight or less each), the first sidewall 101 has a prismatic shape and the first roof 102 has a truncated pyramid shape.

The first top sheet 124 is a sheet for covering the first top structure 112, and together with the first top structure 112 constitutes the first top 103.

In this embodiment, the first top sheet 124 covers the top frame portion 116 and the ventilation assistance frame portion 117 from above.

In detail, the first top sheet 124 is fixed to the top frame portion 116 so as to close the gaps in the radially extending top frame portion 116. In addition, the vicinity of the outer edge of the first top sheet 124 is fixed to each tip of the ventilation assistance frame portion 117 using a clamping member or the like (not shown).

By attaching the first top sheet 124 to the ventilation assistance framework 117, a gap is formed between the torso 115 and the first top sheet 124. This prevents the first ventilation sections 119 from being blocked by the first top sheet 124.

The top frame 116 may be made of a flat plate-like member or the like, and may cover the top of the body 115 so as to close the upper end opening of the body 115. In this case, if the amount of rain, wind, snow, etc. entering the first interior 104 through the first ventilation section 119 is so slight that it does not affect the growth of crops, for example, the first top sheet 124 does not need to be provided.

The first sidewall sheet 122 and the first roof sheet 123 may be constructed by connecting the ends of multiple sheets, or may be constructed from a single sheet cut into a predetermined shape. Similarly, the first top sheet 124 may be constructed by connecting multiple sheets, or may be constructed from a single sheet.

The first door 108 is fitted into the first door frame 109 and is attached so that it can be opened and closed using hinges or the like.

(Method of installing a vinyl greenhouse according to embodiment 1)
The method for installing a vinyl greenhouse according to this embodiment is a method for installing a vinyl greenhouse, an example of the flow of which is shown in FIG. 6A, and includes a method for installing a framework for a vinyl greenhouse for installing framework 106.

The method of installing the vinyl greenhouse begins, for example, after the components that make up the vinyl greenhouse 100 (the components that make up the framework 106, the sheets 122-124 that make up the vinyl sheet 107, the first door 108, etc.) are prepared and the circumference for installing the first sidewall framework portion 110 on the installation surface P is determined. Note that the shape in which the first sidewall framework portion 110 is installed on the installation surface P is not limited to a circle and may be an ellipse.

As shown in FIG. 6A, the framework 106 is installed on the installation surface P (step 11).

The details of the flow of the framework installation process (step 11) are shown in FIG. 6B. As shown in the figure, step 11 includes the steps of installing a plurality of first side wall framework sections 110 and a plurality of first roof framework sections 111 (step 111), installing a first top structure 112 (step 112), attaching a first door frame section 109 (step 113), and attaching a first sprinkler pipe 113 (step 114).

In step 111, a plurality of first sidewall framework parts 110 extending linearly and a plurality of first roof framework parts 111 connected to each of the plurality of first sidewall framework parts 110 and extending linearly after being curved or bent are installed on the installation surface P. At this time, the plurality of first sidewall framework parts 110 are installed so that their lower ends are embedded in the installation surface P at intervals on a predetermined circumference on the installation surface P and they extend upward from the installation surface P. Also, the plurality of first roof framework parts 111 are installed so that each extends upward and inward.

When the first sidewall frame portion 110 and the first roof frame portion 111 are composed of multiple members such as multiple pipes, they may be connected in advance before step 111, or may be connected in step 111. In addition, in step 111, a reinforcing band portion 114 may be attached to the multiple first sidewall frame portions 110.

In step 112, the first top structure 112 is attached to the first roof frame parts 111 so as to protrude upward beyond the first roof frame parts 111. In this embodiment, the upper ends of the first roof frame parts 111 are inserted into the insertion holes 118, and the upper ends of the first roof frame parts 111 are placed inside the body part 115. Then, a pin 120 is inserted into a through hole provided at the upper end of the first roof frame part 111, thereby locking the upper end of the first roof frame part 111 so that it does not slip out of the insertion hole part 118.

In step 113, the first door frame portion 109 is fitted into the above-mentioned openings provided in the multiple first sidewall framework portions 110, and its legs are embedded in the installation surface P. At this time, the first door frame portion 109 may be fixed to the first sidewall framework portions 110 adjacent to the left and right edges.

In step 114, the first sprinkler pipes 113 are attached to the first roof frame sections 111. The first sprinkler pipes 113 may be attached using appropriate connectors or fixtures as described above.

As shown in FIG. 6A, a vinyl sheet 107 is attached to the framework 106 installed in step 11 (step 12).

In detail, the first top sheet 124 is attached to the first top structure 112. Then, the first roof sheet 123 is attached to the first roof frame portion 111, and the first sidewall sheet 122 is attached to the first sidewall frame portion 110. The order in which these sheets 122 to 124 are attached may be changed as appropriate.

The first door 108 is attached to the framework 106 installed in step 11 (step 13). In detail, the first door 108 is attached to the left or right edge of the first door frame 109 with a hinge or the like so that it can be opened and closed.

As a result, the vinyl greenhouse 100 is installed on the installation surface P. On the installation surface P of the first interior 104, for example, multiple concentric ring-shaped ridges Q1 to Q3 are provided, and crops or the like are cultivated (see the cross-sectional view of FIG. 2(a)).

In this manner, the framework 106 can be installed by generally installing a plurality of first sidewall framework sections 110 and a plurality of first roof framework sections 111 on the installation surface P and attaching the first top structure 112 to the first roof framework section 111. The members that make up the framework 106 have a relatively simple structure, so that assembly is easy.

The vinyl greenhouse 100 can be set up by simply attaching the first watering pipe 113 and the first door 108 to the installed framework 106, and then attaching the vinyl sheet 107. In this way, the framework 106 and the vinyl greenhouse 100 of this embodiment can be easily set up.

So far, we have explained the first embodiment of the present invention.

According to this embodiment, the framework 106 is provided with a plurality of first sidewall framework parts 110 that are installed at intervals on the circumference of the installation surface P and extend upward from the installation surface P, and a plurality of first roof framework parts 111 that are connected to each of the plurality of first sidewall framework parts and extend upward and inward. The framework 106 provided with these parts allows the installation of a vinyl greenhouse 100 that includes a cylindrical first sidewall 101 and a truncated cone-shaped first roof 102 that is connected to the upper end of the first sidewall 101 and protrudes upward.

Since the vinyl greenhouse 100 is not long in the ridge direction, but is roughly a cylinder with a truncated cone on top, wind can easily pass around it, reducing wind pressure. Also, because of this shape, when snow accumulates on the roof, the weight is distributed more or less evenly across the first side wall 101, preventing collapse due to localized loads. This increases the strength of the frame 106 or the vinyl greenhouse 100.

As mentioned above, the basic shape of the greenhouse 100 is a cylinder with a truncated cone on top, and the first interior 104 is similar. Therefore, when heat or air in the first interior 104 rises near the center, it hits the first roof 102 and falls near the inner surface of the first side wall 101, and when it rises near the inner surface of the first side wall 101, it hits the first roof 102 and falls near the center. As this allows for easy circulation by natural convection, heat or air tends to move naturally throughout the first interior 104 (the entire greenhouse).

Therefore, according to this embodiment, it is possible to provide a framework 106, a vinyl greenhouse 100, and an installation method thereof that are strong and allow heat or air to move naturally throughout the entire greenhouse.

Furthermore, as described above, the framework 106 or the vinyl greenhouse 100 according to this embodiment can be easily installed.

The framework 106 further includes a first top structure 112, which includes a first ventilation section 119 that forms a first opening for connecting the first interior 104 to the outside 105. The first top structure 112 protrudes upward from the first roof framework sections 111, so that it is less likely to impede the natural movement of heat or air in the first interior 104. Furthermore, by providing the first ventilation section 119, ventilation with the outside 105 can also be improved. In other words, the first top structure 112 makes it possible to facilitate the natural movement of heat or air in the first interior 104 while ventilating with the outside 105.

For example, when snow accumulates on the roof, rice husks and other materials are burned inside the greenhouse to melt the snow with heat. In such cases, ventilation with the outside 105 is useful for releasing the smoke from inside the greenhouse to the outside.

According to this embodiment, the multiple first roof frame parts 111 extend radially from the first top structure 112 and connect to each of the multiple first side wall frame parts 110. This allows the frame of the first roof 102, which is frustum-shaped, to be constructed with a relatively simple structure. This makes it easier to install the frame 106 or the vinyl greenhouse 100.

According to this embodiment, the first top structure 112 includes a body 115 and a top framework 116. The body 115 is a tubular member that is connected to the upper ends of the multiple first roof frameworks 111 and extends upward, and is provided with a first ventilation section 119 that forms a first opening that penetrates the member laterally. The top framework 116 is attached to the upper end of the body 115 so as to cover at least a portion of the upper part of the body 115.

This configuration allows ventilation with the outside 105 through the first ventilation section 119. Therefore, it becomes possible to facilitate the natural movement of heat or air within the first interior 104 while allowing ventilation with the outside 105.

According to this embodiment, the framework 106 further includes a ventilation assistance framework portion 117 that extends laterally from the torso portion 115 below the plurality of first ventilation portions 119.

By providing the ventilation assistance framework 117, the first opening formed by the first ventilation section 119 can be prevented from being blocked by the first top sheet 124, and ventilation with the outside 105 can be more reliably achieved. Therefore, it is possible to facilitate the natural movement of heat or air within the first interior 104 while ensuring ventilation with the outside 105.

The first embodiment of the present invention may be modified as follows:

(Variation 1)
In the first embodiment, an example has been described in which a plurality of first ventilation sections 119 forming a first opening penetrating laterally are provided in the body 115. The method of providing a first ventilation section in the first top structure is not limited to this. For example, as shown in Fig. 7, the first top structure 212 according to this modification includes a body 215 including a first ventilation section 219, and a lid section 225 that opens and closes the first ventilation section 219. The first top structure 212 according to this modification can be adopted in place of the first top structure 112 according to the first embodiment.

Here, FIG. 7 shows the first top structure 212 according to this modified example, with (a) being its front view and (b) being its plan view. FIG. 7(c) is a cross-sectional view taken along line VIIc-VIIc in FIG. 7(b), showing the state in which the first ventilation section 219 is blocked by the lid section 225. FIG. 7(d) is a cross-sectional view similar to FIG. 7(c), showing the state in which the first ventilation section 219 is open.

The body 215 is a cylindrical member that is connected to the upper ends of the multiple first roof frame sections 111 configured in the same manner as in embodiment 1 and extends upward. The upper part of the body 215 is open as the first ventilation section 219. In other words, the upper end of the body 215 forms the first opening as the first ventilation section 219.

The lid 225 is attached to the upper end of the body 115 so as to open and close the first ventilation section 219. The lid 225 in this modified example is generally composed of two semicircular flat plates, and is fixed to the upper end of the body 215 so as to be pivotable around the part that forms the diameter.

The end (left end or right end) of the lid 225 and the upper end (upper left end or right end) of the body 215 are connected by a foldable support member 226. The support member 226 in this modified example is made of a metal rod connected to bendable hinges 227, and the upper and lower ends of the support member 226 are pivotally attached to the end of the lid 225 and the upper end of the body 215, respectively. When the support member 226 is folded, the first ventilation section 219 is mostly blocked by the lid 225, and when the support member 226 is extended, the first ventilation section 219 is opened. Note that the opening and closing of the lid 225 may be controlled not only by the support member 226, but also by a motor or other members.

In this modified example, the first top structure 212 is configured with almost no gaps when the lid portion 225 is closed, so even if rain, wind, snow, etc. get into the first interior 104, it is highly likely that the amount will be so slight that it will not affect, for example, the growth of crops. Therefore, when the first top structure 212 of this modified example is used in a vinyl greenhouse, the first top sheet 124 and ventilation assistance framework portion 117 of embodiment 1 do not need to be provided.

Even in this modified example, the first top structure 212 can be provided with a first ventilation section 219 that forms a first opening for communicating the first interior 104 with the outside 105. Therefore, similar to the first embodiment, the first top structure 212 can facilitate the natural movement of heat or air in the first interior 104 while ventilating with the outside 105.

(Variation 2)
8, the vinyl greenhouse 300 and the framework 306 according to the second modification further include a shelf member 328 that is bridged between at least a portion of the plurality of first side wall framework portions 110 in order to support (hang or place) crops F or the like cultivated in the first interior 104. Except for this, the vinyl greenhouse 300 and the framework 306 may be configured similarly to the vinyl greenhouse 100 and the framework 106 according to the first embodiment, respectively.

Here, FIG. 8(a) is a cross-sectional view of a vinyl greenhouse 300 provided with a shelf member 328 at a location corresponding to FIG. 2. FIG. 8(b) is a plan view of the shelf member 328. As shown in FIG. 8(b), the shelf member 328 is preferably structured with gaps to ensure sunlight on the installation surface P.

By providing the shelf member 328, not only the installation surface P but also the shelf member 328 can be used for cultivating crops F as plants, so the space of the first interior 104 can be utilized three-dimensionally. Therefore, since more crops F can be cultivated on the same area of installation surface P, it becomes possible to effectively utilize the installation surface P.

(Variation 3)
A solar power generation panel may be attached to the vinyl greenhouse. In the vinyl greenhouse 400 according to this modification, as shown in the front view of Fig. 9, a solar power generation panel 429 is attached to the first side wall 101 and the first roof 102 of the vinyl greenhouse 100 according to the first embodiment. Note that the solar power generation panel 429 may be attached to only one of the first side wall 101 and the first roof 102.

In this modification, a power generation panel mounting portion 430 is further provided to the framework 106 similar to that of the first embodiment. The power generation panel mounting portion 430 is a flat metal plate that is fixed to a component of the framework 106 using an appropriate fastener or the like, and is attached so that its flat surface faces outward on the outside of the framework 106.

Any commercially available solar panel 429 may be used, but it is preferable to use a lightweight panel that is, for example, approximately 300 to 1000 mm long, approximately 2000 mm wide, approximately 3 to 5 mm thick, and weighs approximately 2 to 6 kg. This allows the solar panel 429, to which magnets are fixed using adhesive or the like, to be attached to the power generation panel mounting section 430 by magnetic force via the first roof sheet 123 and the first sidewall sheet 122. The power generation panel mounting section 430 may include a magnet, and the solar panel 429 may be provided with a metal plate for magnetically attaching the panel to the power generation panel mounting section 430. The solar panel 429 and the solar panel 429 may also be attached to each other by the adhesive force of a hook-and-loop fastener instead of by magnetic force, in which case the solar panel 429 may be made of a material such as resin.

By installing the solar power generation panel 429, the electricity generated by the solar power generation panel 429 can be used for temperature regulation in the first interior 104, thereby making it possible to conserve energy.

In addition, by attaching the power generation panel mounting part 430 using magnetic force as in this modified example, it becomes possible to attach and detach the power generation panel mounting part 430 very easily. The fact that the power generation panel mounting part 430 can be easily removed is extremely useful when replacing the vinyl sheet 107, for example.

<Embodiment 2>
In the first embodiment, an example has been described in which the vinyl greenhouse 100 is composed of a set of a first side wall 101, a first roof 102, and a first top 103. In the present embodiment, an example will be described in which the vinyl greenhouse is composed of a plurality of units whose interiors are continuously connected, with the vinyl greenhouse 100 being one unit, which is generally similar to the first embodiment.

(Configuration of the vinyl greenhouse 500 according to the second embodiment)
10 to 12, the vinyl greenhouse 500 according to the present embodiment is composed of two units arranged with parts overlapping each other so as to form a common chord when viewed from above. In the present embodiment, two units having a roughly front-to-back symmetrical configuration are connected in the front-to-rear direction, and each unit has roughly the same configuration as the vinyl greenhouse 100 according to the first embodiment, as described below.

Here, FIG. 10 is a plan view of a vinyl greenhouse 500 according to this embodiment. FIG. 11 is a cross-sectional view taken along line XI-XI in FIG. 10. FIG. 12 is a cross-sectional view taken along line XII-XII in FIG. 10.

The vinyl greenhouse 500 comprises a frame 506, a vinyl sheet 507, a first door 508a, and a second door 508b.

Similar to the framework 106 in the first embodiment, the framework 506 is a framework for a vinyl greenhouse and forms the basic structure of the vinyl greenhouse 500. The framework 506 includes a first framework unit 531a, a second framework unit 531b, and a communication portion 532.

The first frame unit 531a generally comprises a first door frame portion 509a, a plurality of first side wall frame portions 510a, a plurality of first roof frame portions 511a, a first top structure 512a including a first ventilation portion 519a forming a first opening, and a first watering pipe 513a.

Each element of the first frame unit 531a, except for the first side wall frame portions 510a, is configured in the same manner as the corresponding elements in embodiment 1.

That is, the first door frame portion 509a, the multiple first roof framework portions 511a, the first top structure 512a including the first ventilation portion 519a forming the first opening, and the first sprinkler pipe 513a may be configured similarly to the first door frame portion 109, the multiple first roof framework portions 111, the first top structure 112 including the first ventilation portion 119 forming the first opening, and the first sprinkler pipe 113 in the first embodiment, respectively.

The multiple first sidewall framework portions 510a are configured generally similarly to the multiple first sidewall framework portions 110 according to embodiment 1, except for the configuration for providing the communication portion 532, which will be described in detail later.

In the multiple first sidewall framework parts 510a according to this embodiment, in order to provide a communication part 532, the thick first sidewall framework part 510a arranged at the rear extends upward from the upper edge part (upper part) of the communication part 532.

In other words, the thick first sidewall framework portion 510a located at the rear is not provided below a predetermined height. As a result, a space (opening) for providing the communication portion 532 is formed between the first sidewall framework portions 510a located to the left and right of the thick first sidewall framework portion 510a located at the rear. The first sidewall framework portion 510a that forms the opening for providing the communication portion 532 becomes the connection portion with the second framework unit 531b (the portion that corresponds to the portion that appears as the above-mentioned chord when viewed from above).

The second frame unit 531b has a configuration that is roughly symmetrical from front to back to the first frame unit 531a described above.

That is, the second frame unit 531b has a configuration in which the first door frame portion 509a, the multiple first side wall frame portions 510a, the multiple first roof frame portions 511a, the first top structure 512a including the first ventilation portion 519a forming the first opening, and the first sprinkling pipe 513a of the first frame unit 531a described above are respectively replaced with the second door frame portion 509b, the multiple second side wall frame portions 510b, the multiple second roof frame portions 511b, the second top structure 512b including the second ventilation portion 519b forming the second opening, and the second sprinkling pipe 513b, and are arranged approximately symmetrically in the front-to-rear direction.

In detail, the second sidewall framework portions 510b are generally configured in the same manner as the first sidewall framework portions 110 according to embodiment 1, except for the configuration for providing the communication portions 532, which will be described in detail later.

In the multiple second side wall framework parts 510b according to this embodiment, in order to provide a communication part 532, the thick second side wall framework part 510b arranged at the front extends upward from the upper edge part (upper part) of the communication part 532.

In other words, the thick second sidewall framework portion 510b located in the front is not provided below a predetermined height. As a result, a space (opening) for providing the communication portion 532 is formed between the second sidewall framework portions 510b located to the left and right of the thick second sidewall framework portion 510b located in the front. The second sidewall framework portion 510b that forms the opening for providing the communication portion 532 becomes the connection portion with the first framework unit 531a (the portion that corresponds to the portion that appears as the above-mentioned chord when viewed from above).

Here, the first sidewall framework portion 510a and the second sidewall framework portion 510b, which are the connecting portions of the unit, are provided in contact or close proximity in the front-to-rear direction. Close proximity means being within a predetermined distance. The first sidewall framework portion 510a and the second sidewall framework portion 510b, which are the connecting portions, may or may not be fastened to each other with fasteners or the like.

The communication portion 532 forms a communication opening that connects the first interior 504a and the second interior 504b.

Here, the first interior 504a is the space inside the first frame unit 531a, and the second interior 504b is the space inside the second frame unit 531b. That is, each of the first interior 504a and the second interior 504b corresponds to the first interior 104 according to the first embodiment.

The communication opening, like the entrance and exit, is intended to allow not only people to move around inside the greenhouse 500, but also agricultural tools and machinery, so it is advisable to provide an appropriate size for these to pass through.

The communication part 532 may be configured in a manner generally similar to the first door frame part 109 according to the first embodiment. That is, the communication part 532 may be configured, for example, from a generally rectangular member, and legs (not shown) extending downward from the rectangular part may be embedded and fixed in the installation surface P.

The communication portion 532 is fitted into the opening between the first sidewall frame portion 510a and the opening between the second sidewall frame portion 510b, which are the connection portions. The communication portion 532 may be fixed to the first sidewall frame portion 510a and the second sidewall frame portion 510b, which are the connection portions, by a fastener.

The communication section 532 is provided with a slit curtain 533 that hangs down from the upper edge and closes the communication opening in an openable and closable manner. The slit curtain 533 is a curtain made of a resin sheet with multiple slits extending vertically from a predetermined height to the bottom end, and has a thickness to provide thermal insulation. By providing such a slit curtain 533, it is possible to achieve thermal insulation between the first interior 504a and the second interior 504b. In addition, since the slit curtain 533 has slits, it does not substantially impede the passage of people, agricultural tools, agricultural machinery, etc. through the communication opening. Therefore, it becomes easy to easily manage the temperature of each interior 504a, 504b individually without substantially impeding movement between the first interior 504a and the second interior 504b.

The vinyl sheet 507 includes a first sheet unit 534a and a second sheet unit 534b.

The first sheet unit 534a includes a first sidewall sheet 522a, a first roof sheet 523a, and a first top sheet 524a.

The first side wall sheet 522a is cut out at a location corresponding to the connection between the first frame unit 531a and the second frame unit 531b, and may be configured similarly to the first side wall sheet 122 in embodiment 1 except for this point.

The first roof sheet 523a and the first top sheet 524a may be configured similarly to the first roof sheet 123 and the first top sheet 124 of embodiment 1, respectively.

The second sheet unit 534b has a configuration that is roughly symmetrical in the front-to-back direction to the first sheet unit 534a. In other words, the second sheet unit 534b has a configuration in which the first side wall sheet 522a, the first roof sheet 523a, and the first top sheet 524a of the above-mentioned first sheet unit 534a are replaced with the second side wall sheet 522b, the second roof sheet 523b, and the second top sheet 524b, respectively, and are arranged roughly symmetrically in the front-to-back direction.

Around the periphery of the connection between the first frame unit 531a and the second frame unit 531b, the first side wall sheet 522a and the second side wall sheet 522b are connected, and the first roof sheet 523a and the second roof sheet 523b are connected. These sheets 522a and 522b, and 523a and 523b may be connected by adhesive bonding, fusion, or the like.

The first door 508a and the second door 508b are doors that are fitted into the first door frame portion 509a and the second door frame portion 509b, respectively, and are attached so as to be able to be opened and closed using hinges or the like, similar to the first door 108 in the first embodiment.

(Method of installing a vinyl greenhouse according to embodiment 2)
The method for installing a vinyl greenhouse according to this embodiment is a method for installing a vinyl greenhouse similar to that of the first embodiment, and an example of the flow is shown in FIG. 13A.

In this embodiment, as in the first embodiment, the components of the greenhouse 500 are prepared, and the circumferences for installing the first and second frame units 531a and 531b on the installation surface P are determined, and then the installation method for the greenhouse is started. The circumferences determined here overlap in part when viewed from above, so that they have a common chord of a predetermined length corresponding to the length of the connecting portion.

As shown in FIG. 13A, the framework 506 is installed on the installation surface P (step 21).

The detailed flow of the framework installation process (step 21) is shown in Figure 13B. As shown in the figure, step 21 includes steps 211 to 215.

In step 211, a plurality of first sidewall framework parts 510a, a plurality of first roof framework parts 511a, a plurality of second sidewall framework parts 510b, and a plurality of second roof framework parts 511b are installed. In step 212, a first top structure 512a and a second top structure 512b are installed. In step 213, a first door frame part 509a and a second door frame part 509b are attached. In step 214, a first water sprinkler pipe 513a and a second water sprinkler pipe 513b are attached.

Each of steps 211 to 214 is similar to steps 111 to 114 for assembling the frame 106 in embodiment 1, but applied to assembling the first frame unit 531a and the second frame unit 531b, respectively. For the sake of simplicity, detailed descriptions of steps 211 to 214 are omitted.

In step 215, the communication section 532 and the slit curtain 533 are installed.

In detail, the communication part 532 is commonly fitted into each opening formed at the connection part between the first frame unit 531a and the second frame unit 531b, and fixed to the installation surface P. Then, the communication part 532 is appropriately fixed by fasteners to the first side wall frame part 510a and the second side wall frame part 510b that form the opening.

The slit curtain 533 is attached to the communication part 532 in an openable and closable manner so as to hang down from the upper side of the communication part 532. A mounting tool generally used for mounting slit curtains may be used to attach the slit curtain 533.

As shown in FIG. 13A, a vinyl sheet 507 is attached to the framework 506 installed in step 21 (step 22).

In detail, the first top sheet 524a, the first roof sheet 523a, and the first sidewall sheet 522a are attached to the first top structure 512a, the multiple first roof frame parts 511a, and the multiple first sidewall frame parts 510a, respectively. Also, the second top sheet 524b, the second roof sheet 523b, and the second sidewall sheet 522b are attached to the second top structure 512b, the multiple second roof frame parts 511b, and the multiple second sidewall frame parts 510b, respectively. The order in which these sheets 522a, 523a, 524a, 522b, 523b, and 524b are attached may be changed as appropriate.

Then, around the connection between the first frame unit 531a and the second frame unit 531b, the first roof sheet 523a and the second roof sheet 523b are connected to the first side wall sheet 522a and the second side wall sheet 522b by an appropriate method such as welding.

The first door 508a and the second door 508b are attached to the framework 506 installed in step 21 (step 23). In detail, the first door 508a is fitted into the first door frame 509a and is attached to the left or right edge of the first door frame 509a with a hinge or the like so that it can be opened and closed. The second door 508b is fitted into the second door frame 509b and is attached to the left or right edge of the second door frame 509b with a hinge or the like so that it can be opened and closed.

In addition, in the vinyl greenhouse 500 according to this embodiment, since it is possible to enter and exit the first interior 504a and the second interior 504b from one entrance, it is sufficient to provide at least one entrance. In other words, in this embodiment, it is not necessary to provide either the set of the first door frame portion 509a and the first door 508a or the set of the second door frame portion 509b and the second door 508b.

As a result, the vinyl greenhouse 500 is installed on the installation surface P. For example, a plurality of concentric ring-shaped ridges Q1 to Q3 are provided on the installation surface P of the first interior 504a, and a plurality of ring-shaped ridges Q4 to Q6 are provided on the installation surface P of the second interior 504b, and crops or the like are cultivated on each of them (see the cross-sectional view of Figure 11).

In this way, each unit constituting the vinyl greenhouse 500 can be easily installed by repeating steps generally similar to those for the vinyl greenhouse 100 according to embodiment 1. The units constituting the vinyl greenhouse 500 can be continuously connected by attaching the communication portion 532 to the connection portion and connecting the sheets 522a, 523a, 522b, and 523b around the connection portion. This makes it possible to easily install the vinyl greenhouse 500 composed of multiple units.

So far, we have explained the second embodiment of the present invention.

For example, in a typical vinyl greenhouse that is long in the ridge direction, the interior space and ground are generally continuous in the ridge direction. When cultivating multiple types of crops in such a greenhouse, the interior space and ground are continuous, so they are susceptible to being influenced by each other, making it difficult to manage the temperature, fertilizer, and soil for each crop.

One example of soil management is leaving some land fallow to prevent continuous crop damage. However, if crops are grown on the remaining land, the effects of the cultivation will extend to the fallow areas, and as a result, the fallow areas cannot be left to rest sufficiently, making it difficult to prevent continuous crop damage.

According to this embodiment, a vinyl greenhouse 500 with divided interiors 504a and 504b can be provided. The land and space of the interiors 504a and 504b are only connected through the communication part 532, and are otherwise separated. Therefore, the different interiors 504a and 504b are hardly affected by each other, and temperature management, fertilizer management, soil management, etc. for each crop can be easily performed. In terms of the above-mentioned continuous crop damage regarding soil management, the impact of cultivating crops in one of the interiors 504a and 504b is unlikely to extend to the other interior 504a and 504b, so when the land of one of the interiors 504a and 504b is left fallow, the land in the fallow part can be left fully fallow. Therefore, it is possible to easily prevent continuous crop damage.

In addition, since the interiors 504a and 504b are connected through the communication portion 532, there is no need to enter and exit the interiors 504a and 504b through the first door 508a and the second door 508b, respectively, and workers can easily move between the interiors 504a and 504b. In addition, agricultural tools and machinery can also be easily moved between the interiors 504a and 504b. In other words, it is possible to prevent a decrease in workability while dividing the interiors 504a and 504b.

This makes it possible to easily cultivate multiple types of crops while preventing a decline in workability.

So far, we have explained the second embodiment, but the second embodiment may be modified as follows.

For example, the direction in which multiple units are connected together is not limited to the front-to-rear direction, and they may be connected together in any suitable direction.

(Variation 4)
In the second embodiment, an example of a greenhouse 500 (or framework 506) in which two units are connected via a communication portion 532 has been described. However, the number of units connected to each other in a greenhouse 600 (or framework) may be three or more, for example, as shown in the plan view of Fig. 14. In Fig. 14, the dotted lines indicate the connection portions of the units.

In this case, as in the second embodiment, the interiors of each unit (or frame unit) can be continuously connected by providing a communication section 532 at the connection between the frame units. Also, the first door 108, as in the first embodiment, may be provided in an appropriate frame unit.

In conventional vinyl greenhouses that are long in the ridge direction, when the installation surface P has a complex shape as shown in FIG. 14, it becomes difficult to install multiple vinyl greenhouses, as shown by the two-dot chain line in the figure, and the installation area (the area of the installation surface P inside the vinyl greenhouse) may become narrow.

Since each unit in this modified example is circular when viewed from above, even if the installation surface P has a complex shape as shown in FIG. 14, multiple units (or frame units) can be installed in series, making the installation area larger than before. Therefore, even if the installation surface P has a complex shape, it is possible to effectively use the installation surface P to install the greenhouse 600. This effect is also the same when each unit is elliptical when viewed from above. In addition, this modified example shows an example in which units of the same size and shape when viewed from above are installed in series, but units that differ in either or both size and shape when viewed from above (circle or ellipse) may be installed in series, and in this case, the same effect as this modified example is also achieved.

Although the embodiments and modifications of the present invention have been described above, the present invention is not limited to these. For example, the present invention includes forms that appropriately combine some or all of the embodiments and modifications described so far, and forms that appropriately modify those forms.

100, 300, 400, 500, 600 Vinyl greenhouse, 101 First side wall, 102 First roof, 103 First top, 104, 504a First interior, 105 Exterior, 106, 306, 506 Frame, 107, 507 Vinyl sheet, 108, 508a First door, 109, 509a First door frame, 110, 510a First side wall frame, 111, 511a First roof frame, 112, 212, 512a First top structure, 113, 513a First sprinkler pipe, 114 Reinforcement band, 115, 215 Body, 116 Top frame, 117 Ventilation auxiliary frame, 118 Insertion hole, 119, 219, 519a First ventilation section, 120 pin, 121 sprinkler port, 122, 522a first side wall sheet, 123, 523a first roof sheet, 124, 524a first top sheet, 225 lid section, 226 support member, 227 hinge, 328 shelf member, 429 solar power generation panel, 430 power generation panel mounting section, 504b second interior, 508b second door, 509b second door frame section, 510b second side wall frame section, 511b second roof frame section, 512b second top structure, 513b second sprinkler pipe, 519b second ventilation section, 522b second side wall sheet, 523b second roof sheet, 524b second top sheet, 531a first frame unit, 531b second frame unit, 532 communication section, 533 Slit curtain, 534a first sheet unit, 534b second sheet unit

Claims (9)

a plurality of first side wall framework portions disposed at intervals on a circumference of a circle or an ellipse on the mounting surface and extending upward from the mounting surface;
a plurality of first roof frame portions connected to each of the plurality of first side wall frame portions and extending upward and inward;
A first top structure attached to the plurality of first roof frame portions and protruding upward beyond the plurality of first roof frame portions;
a plurality of second side wall framework portions disposed at intervals on the circumference of a circle or an ellipse on the mounting surface and extending upward from the mounting surface;
a plurality of second roof frame portions connected to each of the plurality of second side wall frame portions and extending upward and inward;
A second top structure attached to the plurality of second roof frame portions and protruding upward beyond the plurality of second roof frame portions;
a communication portion that forms a communication opening that communicates between a first interior, which is a space surrounded by the plurality of first side wall framework portions, the plurality of first roof framework portions, and the first top structure, and a second interior, which is a space surrounded by the plurality of second side wall framework portions, the plurality of second roof framework portions, and the second top structure;
the communication portion is provided at a connection portion between the first side wall framework portions and the second side wall framework portions that are arranged to form a common chord when viewed from above,
The first top structure comprises:
a first ventilation section that forms a first opening for communicating the first interior with the outside;
a first body portion which is a cylindrical member connected to upper ends of the plurality of first roof frame portions and extending upward, and in which the first ventilation portion is provided and which forms the first opening penetrating the member in a lateral direction;
A first top framework portion attached to an upper end portion of the first body portion so as to cover at least a portion of the upper portion of the first body portion;
a first ventilation auxiliary framework portion extending laterally from the first body portion below the plurality of first ventilation portions. The greenhouse framework according to claim 1 , further comprising fasteners for fastening the first side wall frame portions and the second side wall frame portions together at the connection portions. The greenhouse framework according to claim 1 or 2, wherein the plurality of first roof frame sections extend radially from the first top structure and are connected to the plurality of first side wall frame sections, respectively. The second top structure includes:
a second ventilation section that forms a second opening for communicating the second interior with the exterior;
a second body portion which is a cylindrical member connected to the upper ends of the plurality of second roof frame portions and extending upward, and in which the second ventilation portion is provided and which forms the second opening penetrating the member in a lateral direction;
A second top framework attached to an upper end of the second body so as to cover at least a portion of the upper part of the second body;
The greenhouse framework according to any one of claims 1 to 3, further comprising a second ventilation auxiliary framework section extending laterally from the second body section below the plurality of second ventilation sections. The greenhouse frame according to any one of claims 1 to 4, wherein the second roof frame portions extend radially from the second top structure and connect to each of the second side wall frame portions. The solar panel mounting structure further includes a power generation panel mounting portion fixed to at least one of the plurality of first side wall frame portions, the plurality of first roof frame portions, the plurality of second side wall frame portions, and the plurality of second roof frame portions, for mounting a solar panel by magnetic force.
A frame for a vinyl greenhouse according to any one of claims 1 to 5. A vinyl greenhouse framework according to any one of claims 1 to 6;
a first side wall sheet and a second side wall sheet which are sheets attached to the first side wall frame portion and the second side wall frame portion, respectively;
A vinyl greenhouse comprising a first roof sheet and a second roof sheet which are sheets attached to the first roof frame portion and the second roof frame portion, respectively. a plurality of first side wall frame parts extending linearly and a plurality of first roof frame parts extending linearly and connected to each of the plurality of first side wall frame parts by being curved or bent, are installed on the installation surface such that the plurality of first side wall frame parts extend upward from the installation surface at intervals on the circumference of a circle or an ellipse on the installation surface, and the plurality of first roof frame parts extend upward and inward;
Attaching a first top structure to the plurality of first roof frame portions so as to protrude upwardly beyond the plurality of first roof frame portions;
a plurality of second side wall frame parts extending linearly and a plurality of second roof frame parts extending linearly and connected to each of the plurality of second side wall frame parts by being curved or bent, are installed on the installation surface such that the plurality of second side wall frame parts extend upward from the installation surface at intervals on a circumference of a circle or an ellipse on the installation surface, and the plurality of second roof frame parts extend upward and inward;
and attaching a second top structure to the second roof frame portions so as to protrude upwardly beyond the second roof frame portions;
The plurality of first side wall framework portions and the plurality of second side wall framework portions are arranged to form a common chord when viewed from above,
The first top structure comprises:
a first ventilation section that forms a first opening for communicating a first interior, which is a space surrounded by the first side wall framework sections, the first roof framework sections, and the first top structure, with the outside;
a first body portion which is a cylindrical member connected to upper ends of the plurality of first roof frame portions and extending upward, and in which the first ventilation portion is provided and which forms the first opening penetrating the member in a lateral direction;
A first top framework portion attached to an upper end portion of the first body portion so as to cover at least a portion of the upper portion of the first body portion;
a first ventilation auxiliary framework section extending laterally from the first body section below the plurality of first ventilation sections. Installing a vinyl greenhouse frame by the method for installing a vinyl greenhouse frame according to claim 8;
and attaching a sheet to the installed greenhouse framework.

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