JP2015070805A - Ventilation mechanism of greenhouse - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation mechanism of greenhouse which is applicable to an existing greenhouse at low cost.SOLUTION: There is provided a ventilation mechanism of greenhouse which performs ventilation by a ventilation member. A greenhouse is formed by expanding a plurality of belt-like synthetic resin films 10 arrayed approximately in parallel with each other, the belt-like synthetic resin films which are adjacent to each other form an overlapped portion 12 in an adjacent portion, and the ventilation member separates the belt-like synthetic resin films adjacent in the overlapped portion.

Description

  The present invention relates to a ventilation mechanism for a greenhouse, and more particularly to a ventilation mechanism for a greenhouse that ventilates with a ventilation member.

  BACKGROUND OF THE INVENTION Household equipment for heat insulation used for plant cultivation is often used as a plastic house with pipes or the like used as the equipment skeleton and covered with a synthetic resin film. In a greenhouse, it is necessary to ventilate when the internal temperature rises too much, and various methods have been studied for the ventilation method (for example, Patent Documents 1-4).

  In Patent Literature 1, a plurality of bands are provided at predetermined intervals across the roof to cover the roof of the greenhouse so that the roof can be opened and closed, and one end of the band is fixed to one longitudinal end of the roof. The other end is fixed to a band take-up pipe disposed on the other end of the roof in a freely retractable manner, and a band tightening / loosening device is provided for rotating and tightening the band by rotating the band take-up pipe. A greenhouse opening and closing device is disclosed in which a restraining member that suppresses lateral displacement of the band is attached to the top of the roof so that the band can be prevented from being wound around the band take-up pipe while being laterally displaced. Yes.

  In Patent Document 2, a ventilation port is provided vertically along the ridge of the house, and the upper edge of one upper half roof is connected to the upper edge of the ventilation port and the other lower half roof is formed at the lower edge. A house ventilation device in which the upper end edge of the section is continuously provided is disclosed.

  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 installed on a side wall portion of a plastic greenhouse structure in which pipe members are continuously arranged at an appropriate interval. A greenhouse seat opening and closing device is disclosed in which a supporting member for maintaining the shaft in a horizontal position is attached to the pipe-like structure in the central region of the shaft.

  In Patent Document 4, a roof is provided on a plurality of fixed beams arranged in parallel in the transverse direction, and the roof has a fixed roof portion in which a covering material for fixing portions is stretched between the fixed beams, an opening portion that is not stretched, Is a ventilation device for a cultivation house facility provided with a movable roof part that opens and closes the opening part below the opening part, and is erected in the house axis direction below the fixed beam, and A plurality of round pipes having slits in the direction and a plurality of spherical bodies arranged in parallel in the transverse direction and corresponding to the slits of the round pipes, and loosely fitting the spherical bodies in the round pipes. The movable roof portion includes a movable roof portion including a plurality of movable beams suspended to be movable, a connecting beam connecting the movable beams, and a covering material for the movable portion stretched between the movable beams. To open and close the opening of the roof by moving as a unit Cultivation for the house equipment of the ventilation device is disclosed was.

JP 2002-171843 A JP 2003-322372 A JP 2008-306993 A JP2013-63061A

  Since high-temperature air stays in the ceiling part, it is necessary to ventilate by opening and closing the ceiling part (roof part), but the technique disclosed in Patent Document 3 cannot meet this requirement.

  In addition, in each of Patent Documents 1, 2, and 4, it is necessary to install a dedicated ventilation mechanism as a greenhouse for the construction of the greenhouse, which increases the cost and is to be installed later in an existing greenhouse. Is very difficult.

  This invention is made | formed in view of this point, The place made into the objective is to provide the ventilation mechanism of the greenhouse which can be applied to an existing greenhouse at low cost.

  In order to solve the above-mentioned problem, the ventilation mechanism of the greenhouse of the present invention is a ventilation mechanism of a greenhouse that ventilates by a ventilation member, and the greenhouse is stretched by arranging a plurality of strip-shaped synthetic resin films substantially parallel to each other. The adjacent strip-shaped synthetic resin films are formed to overlap each other in the adjacent portion, and the ventilation member is configured to separate the adjacent strip-shaped synthetic resin films adjacent to each other in the overlapping portion. I have. Here, “substantially parallel” means that the belt-shaped synthetic resin films include a state where they are slightly deviated from a parallel state in a mathematically strict sense due to a deviation at the time of creation of the greenhouse or a distortion of the house. If the deviation is within 15 degrees from strict parallel, it can be said to be substantially parallel.

  It is preferable that the said ventilation member spaces apart the said strip | belt-shaped synthetic resin films which the said overlapping part adjoins in the roof of a greenhouse.

  The roof portion of the greenhouse includes a long ridge member on which the belt-shaped synthetic resin film is placed and a long pressing member placed on the belt-shaped synthetic resin film, and the ridge member and the pressing member Are installed substantially parallel to each other, and the longitudinal direction of the strip-shaped synthetic resin film and the longitudinal direction of the ridge member are preferably substantially orthogonal to each other. Here, “substantially parallel” means that the ridge member and the holding member are slightly deviated from the parallel state in a mathematically strict sense due to the deviation at the time of creation of the greenhouse or the distortion of the house. If the deviation is within 15 degrees from strict parallel, it can be said to be substantially parallel. The same applies to substantially orthogonal, and if the deviation is within 15 degrees from strict orthogonal, it can be said to be approximately orthogonal.

  The ventilation member may move the belt-shaped synthetic resin film substantially perpendicularly to a surface formed by the belt-shaped synthetic resin film. Similarly to the above description, the term “substantially vertical” is not strictly vertical, but it can be said to be substantially vertical if it is within 15 degrees from the mathematical vertical.

  The ventilation member may move the belt-shaped synthetic resin film substantially horizontally with respect to a surface formed by the belt-shaped synthetic resin film. As for the substantially horizontal, as described above, it is not strict in the horizontal sense, but it can be said to be almost horizontal if it is within 15 degrees from the horizontal in the mathematical sense. Further, the ventilation member includes a first connecting member connected to one of the strip-shaped synthetic resin films at the overlapping portion, a second connecting member connected to the other strip-shaped synthetic resin film at the overlapping portion, An elongated third coupling member coupled to the first coupling member and the second coupling member and extending in a direction substantially orthogonal to the longitudinal direction of the strip-shaped synthetic resin film, wherein the third coupling member is the first coupling member It is preferable that the member and the second connecting member are configured to move in a direction substantially orthogonal to the longitudinal direction of the belt-shaped synthetic resin film and in opposite directions.

  In the ventilation mechanism of the greenhouse according to the present invention, the strip-shaped synthetic resin films in the overlapping portion are separated from each other by the ventilation member. Therefore, ventilation can be performed with a simple configuration in the existing greenhouse.

It is the schematic diagram which looked at the roof part of the wave type house from the side. It is the typical figure which looked at the roof part of a wave type house from the top. It is a figure which shows the ventilation member of Embodiment 1. FIG. It is the upper surface schematic diagram which inserted the ventilation member of Embodiment 1 in the overlap part. It is the sectional view on the AA line of FIG. It is a figure which shows the principal part of the ventilation member of Embodiment 2. It is the BB sectional view taken on the line of FIG. FIG. 6 is a schematic diagram illustrating an operation mechanism of a ventilation member according to a second embodiment.

  There are various types of greenhouses. For example, greenhouses described in patent documents have a relatively solid skeleton structure and can be preinstalled with a ventilator. However, it is difficult to incorporate a ventilator in advance in a simple skeleton such as a pipe with a synthetic resin film in terms of structure or strength, and in comparison with the manufacturing cost of the greenhouse. The cost of will increase.

  Furthermore, the greenhouse described in the patent literature is a fixed type and is premised to be installed on flat ground, but it is installed according to the shape and height of the land, such as sloped land and rough terrain. A ventilation mechanism that can be applied to a wavy type house, which is a simple plastic house, at low cost and retrofitted has not been disclosed so far.

  In view of the above points, embodiments of the present invention will be described below in detail with reference to the drawings. In the following drawings, components having substantially the same function are denoted by the same reference numerals for the sake of brevity.

(Embodiment 1)
FIG. 1 is a view of a roof portion of a wave-shaped house, which is a kind of simple greenhouse, as viewed from the side, and FIG. 2 is a view as viewed from above. In the corrugated house according to the present embodiment, a plurality of pillars 50, 50, 50 made of metal pipes are erected, and long building members 40, 40, 40 made of metal pipes are placed thereon. . The ridge member 40 extends perpendicular to the plane on which FIG. 1 is depicted.

  On the ridge member 40, a plurality of strip-shaped synthetic resin films 10, 10,. Each of the strip-shaped synthetic resin films 10 extends in a direction substantially orthogonal to the direction in which the ridge member 40 extends, and the adjacent strip-shaped synthetic resin films 10 and 10 overlap with each other in the adjacent portions. Forming. In the overlapping portion 12, both strip-shaped synthetic resin films 10 and 10 overlap with a width of about 20 to 30 cm.

  A band-shaped synthetic resin film 10, 10,... Is hung from the side of the house from a ridge member 40 extending from the side end of the corrugated house. A plurality of long pipe-shaped pressing members 45, 45 are placed on the belt-shaped synthetic resin film 10, and the belt-shaped synthetic resin film 10 is pressed and stretched from above. The holding member 45 is disposed substantially parallel to the ridge member 40.

  Such a wavy house is widely applied to fruit trees (particularly grapes) cultivated on a vast slope. The reason is that the slope is different and the slope varies depending on the location, so it is very difficult to handle with existing vinyl equipment, and because the installation area is large, it is necessary to install it at the lowest possible cost. This is because it is very difficult to accommodate such a low cost in a house. However, since a simple structure is adopted in order to reduce the cost, it is very difficult to install a conventional ventilation facility on the roof part in terms of cost and structure (in terms of strength). Therefore, as a result of various studies, the inventors of the present application have come up with a ventilation member described below.

  As shown in FIGS. 3, 4, and 5, the ventilation member 20 according to the present embodiment includes an insertion portion including a plate-like upper opening / closing member 21 and a plate-like lower opening / closing member 22, and an upper opening / closing member. Moving at least one of the first support member 23 attached to one end of the first support member 23, the second support member 24 attached to one end of the lower opening / closing member 22, and the first support member 23 and the second support member 24. Is provided with a moving mechanism unit 25 that separates or brings the upper opening / closing member 21 and the lower opening / closing member 22 apart from each other.

  The specific configuration of the ventilation member 20 of the present embodiment is a configuration in which the first support member 23 and the second support member 24 are pipes, and the first support member 23 is accommodated inside the second support member 24. ing. And the 1st support member 23 and the 2nd support member 24 are attached to the edge part of the same side of the upper side opening / closing member 21 and the lower side opening / closing member 22 substantially perpendicularly with respect to the upper side opening / closing member 21 and the lower side opening / closing member 22, respectively. ing. Since the opposite ends of the upper opening / closing member 21 and the lower opening / closing member 22 are inserted into the overlapping portion 12, the thickness is reduced. Further, the moving mechanism unit 25 has a structure in which the first support member 23 moves upward or downward along the central axis by rotating the cylindrical portion of the outer shell around the central axis.

  In this embodiment, a person holds the ventilation member 20 and inserts the insertion portion between the two strip-shaped synthetic resin films 10 and 10 of the overlapping portion 12 of the roof of the corrugated house from the inside of the house. Then, a person operates the moving mechanism 25 to separate the two strip-shaped synthetic resin films 10 and 10 in the overlapping portion 12 in a direction perpendicular to the film surface. That is, the upper opening / closing member 21 pushes up the upper band-shaped synthetic resin film 10 and the lower opening / closing member 22 pushes the lower band-shaped synthetic resin film 10 down to form a gap of 20 to 30 cm.

  The high temperature air in the corrugated house has a lower density than the low temperature air, and therefore stays in the ceiling. Then, if the roof overlapping part 12 is separated and a ventilation opening is formed, air having a high temperature goes out of the house. At this time, if the side or doorway of the house is opened or separated from the outside by a net, the outside air enters the house and ventilation is promoted.

  When the ventilation is sufficiently performed and the temperature of the air in the ceiling part is equal to or lower than the predetermined temperature, the moving mechanism unit 25 is operated again to cancel the separated state, and the two strip-shaped synthetic resin films 10 and 10 are overlapped. .

  Depending on the size of the greenhouse, a plurality of ventilation members 20 may be prepared for a single greenhouse, and a plurality of overlapping portions 12 may be opened to create a ventilation opening. In this case, it is preferable to select the overlapping portion 12 that is located as high as possible because ventilation is performed efficiently.

  If the ventilation member 20 of this embodiment is used, ventilation of the existing corrugated type house can be performed easily at low cost in a short time. The ventilation member 20 has a simple structure and can be produced at low cost.

(Embodiment 2)
The vinyl house in the second embodiment is the same wave-shaped house as in the first embodiment, but the ventilation mechanism is different from the first embodiment, and the strip-shaped synthetic resin films 10 and 10 of the overlapping portion 12 are placed on the surface of the strip-shaped synthetic resin film 10. It is moved horizontally to form a ventilation opening.

  In this embodiment, as shown in FIGS. 6 and 7, the first connecting member 31 a and the second connecting member 31 b respectively hold the sides of the two strip-shaped synthetic resin films 10 and 10 in the overlapping portion 12. doing. That is, the 1st connection member 31a and the 2nd connection member 31b are connected with the strip | belt-shaped synthetic resin films 10 and 10, respectively. In the ventilation member 30 shown in FIG. 8, the first gripping member 31a is moved in the direction of the arrow Da and the second gripping member 31b is moved in the direction of the arrow Db, so that the overlapping state in the overlapping portion 12 is eliminated, and two strips are further formed. The synthetic resin films 10 and 10 are separated to form a ventilation port.

  In FIG. 8, in order to make the ventilation mechanism easy to understand, the belt-shaped synthetic resin film is indicated by a one-dot chain line. The 1st connection member 31a and the 2nd connection member 31b are each connected with the 3rd connection member 32 which consists of ropes. The third connecting member 32 extends in a direction orthogonal to the longitudinal direction of the belt-shaped synthetic resin film, and the central portion is wound around the pulley 34 to change the direction by 180 degrees. Both end portions of the third connecting member 32 are respectively wound around the cylindrical drive shaft member 33 in opposite directions to form a first winding portion 36 and a second winding portion 35.

  When the drive shaft member 33 is rotated around the central axis in the Ra direction, the third connecting member 32 is further wound around the first winding portion 36, and the third connecting member 32 is wound around the second winding portion 35. It is understood. Thereby, the 1st connection member 31a moves to the drive-shaft member 33 side, the 2nd connection member 31b moves to the pulley 34 side, and forms a ventilation opening in the overlapping part 12. FIG. Thereafter, when the drive shaft member 33 is rotated in the Rb direction, the first connecting member 31a moves to the pulley 34 side, the second connecting member 31b moves to the drive shaft member 33 side, and the ventilation port is closed. .

  Thus, in this embodiment, the 3rd connection member 33 moves the 1st connection member 31a and the 2nd connection member 31b to the direction orthogonal to the longitudinal direction of a strip-shaped synthetic resin film, and mutually opposite directions. Form a ventilation opening, or conversely close a ventilation opening.

  The ventilation mechanism of the present embodiment can also easily ventilate an existing corrugated house in a short time and at low cost. In addition, compared with this embodiment, the direction of Embodiment 1 can close a ventilation port reliably.

(Other embodiments)
The above-described embodiment is an exemplification of the present invention, and the present invention is not limited to these examples, and these examples may be combined or partially replaced with known techniques, common techniques, and known techniques. Also, modified inventions easily conceived by those skilled in the art are included in the present invention.

  The greenhouse is not limited to the corrugated type house, and any type of greenhouse may be used as long as a plurality of strip-shaped synthetic resin films are superposed on each other adjacent to each other.

  The ventilation member is also an example, and the shape, structure, operation mechanism, and the like are not limited to the above embodiment. For example, the ventilation member of the first embodiment is manually inserted into the overlapping portion and opened and closed by the person, but the ventilation member may be installed as a fixing device, and the overlapping portion may be opened and closed by a motor. . Also, the upper and lower opening / closing members are not opened / closed by a hinge mechanism with the end opposite to the insertion end as a fulcrum instead of opening / closing the overlapping portion by moving the first support member or the second support member. Alternatively, other opening / closing mechanisms may be employed. Also in the second embodiment, for example, the third connecting member may be a rod and the pulley may be a link mechanism such as a crank.

  As described above, since the ventilation mechanism of the greenhouse according to the present invention can be installed at a low cost with a simple structure, it is useful as a ventilation mechanism of a corrugated house.

DESCRIPTION OF SYMBOLS 10 Band-shaped synthetic resin film 12 Overlapping part 20 Ventilation member 30 Ventilation member 31a 1st connection member 31b 2nd connection member 32 3rd connection member 40 Building member 45 Holding member

Claims (6)

It is a ventilation mechanism of a greenhouse that ventilates by a ventilation member,
The greenhouse is formed by stretching a plurality of strip-shaped synthetic resin films arranged in parallel to each other,
The adjacent band-shaped synthetic resin films form overlapping portions that overlap in adjacent portions,
The ventilation member is a ventilation mechanism of a greenhouse that separates the adjacent band-shaped synthetic resin films in the overlapping portion.   The said ventilation member is a ventilation mechanism of the greenhouse described in Claim 1 which spaces apart the said strip | belt-shaped synthetic resin films which adjoin the said overlap part in the roof of a greenhouse. The roof portion of the greenhouse includes a long ridge member on which the belt-shaped synthetic resin film is placed and a long pressing member that is placed on the belt-shaped synthetic resin film,
The ridge member and the pressing member are installed substantially parallel to each other,
The ventilation mechanism of the greenhouse described in Claim 1 or 2 with which the longitudinal direction of the said strip | belt-shaped synthetic resin film and the longitudinal direction of the said ridge member are substantially orthogonal.   4. The greenhouse ventilation mechanism according to claim 1, wherein the ventilation member moves the belt-shaped synthetic resin film substantially perpendicularly to a surface formed by the belt-shaped synthetic resin film. 5.   The ventilation mechanism of a greenhouse according to any one of claims 1 to 3, wherein the ventilation member moves the belt-shaped synthetic resin film substantially horizontally with respect to a surface formed by the belt-shaped synthetic resin film. The ventilation member includes a first connecting member connected to one of the strip-shaped synthetic resin films at the overlapping portion, a second connecting member connected to the other strip-shaped synthetic resin film at the overlapping portion, and the first An elongated third coupling member coupled to the coupling member and the second coupling member and extending in a direction substantially perpendicular to the longitudinal direction of the strip-shaped synthetic resin film;
The said 3rd connection member is described in Claim 5 which moves the said 1st connection member and the said 2nd connection member in the direction substantially orthogonal to the longitudinal direction of the said strip | belt-shaped synthetic resin film, and the mutually opposing direction. The ventilation mechanism of the greenhouse.

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