JP7751880B2 - Ventilation components for horticultural tunnels and ventilation component installation method - Google Patents

Description

The present invention relates to a ventilation element for a horticultural tunnel, in which a covering material is applied to an object, and a ventilation element installation method.

Horticultural tunnels are constructed with arched supports covered with vinyl or other covering materials, which provides heat retention even in low-temperature nighttime environments. However, during the day, sunlight can make the tunnels hot, so the bottom of the tunnels must be pulled up to ventilate. This ventilation work requires workers to bend down to raise and lower the covering material, which places a heavy burden on the workers.
To date, methods have been considered for automating bottom ventilation by utilizing temperature changes (Patent Documents 1 to 3), and for changing the basic structure of the tunnel (Patent Documents 4 to 11).
Patent Documents 4 to 6 propose bellows-type opening and closing, Patent Documents 7 and 8 propose top-opening and closing types, and Patent Documents 9 to 11 propose hole-punching ventilation.

Japanese Patent Application Laid-Open No. 2004-254689 Microfilm of Utility Model Application No. 60-108748 (Utility Model Application No. 62-16254) Utility Model Registration No. 3167867 Japanese Patent Application Laid-Open No. 2018-93855 JP 2009-136293 A JP 2012-143165 A Japanese Patent Application Publication No. 09-182531 CD-ROM of Japanese Utility Model Application No. 04-42822 (Japanese Utility Model Application Laid-Open No. 06-3052) Japanese Patent Application Laid-Open No. 2006-14633 Japanese Patent Application Publication No. 10-215710 Japanese Patent Application Laid-Open No. 2001-112359

However, the bottom ventilation methods described in Patent Documents 1 to 3 have the problem of being unable to respond to sudden changes in weather, and even the new tunnel structures described in Patent Documents 4 to 10 and the new tunnel structure or covering material structure described in Patent Document 11 do not allow for fine adjustments at multiple locations simultaneously.
As such, ventilation is an important task for ventilation components in horticultural tunnels, but it also places a heavy burden on workers, and considering the aging of agricultural workers, there will be a need for further labor-saving measures in ventilation work in the future.

The present invention therefore aims to provide a ventilation element for a horticultural tunnel that allows for easy ventilation, and a ventilation element installation method.

The ventilation member 10 for the horticultural tunnel 3 of the present invention described in claim 1 is a ventilation member 10 for a horticultural tunnel 3 in which a plurality of arc-shaped supports 1 are erected at predetermined intervals along the ridges, and a covering sheet 2 is placed between the supports 1 in some of the horticultural tunnel 3 to cover the ridges by covering the supports 1 with the covering sheet 2, and the covering sheet 2 for the ventilation member is placed in place of the covering sheet 2, and the covering sheet 2 for the ventilation member is formed of a first covering material 12X covering the range from the top to one bottom, and a second covering material 12Y covering the range from the top to the other bottom, and a first lower support material 13X is provided at the lower end of the first covering material 12X, and a first upper support material 13X is provided at the upper end of the first covering material 12X. A support material 14X is provided, a second lower support material 13Y is provided at the lower end of the second covering material 12Y, and a second upper support material 14Y is provided at the upper end of the second covering material 12Y, the first lower support material 13X and the second lower support material 13Y are fixed at the bottom position of the ventilation member covering sheet 2, the first upper support material 14X and the second upper support material 14Y are positioned at the top of the ventilation member covering sheet 2 to keep the horticultural tunnel 3 in a warm state, and the first upper support material 14X and the second upper support material 14Y are separated from the top of the ventilation member covering sheet 2 to keep the horticultural tunnel 3 in a ventilated state.
The present invention described in claim 2 is characterized in that, in the ventilation member 10 of the horticultural tunnel 3 described in claim 1, a first frame member 11X is provided on both sides of the first covering material 12X, and a second frame member 11Y is provided on both sides of the second covering material 12Y.
The present invention described in claim 3 is characterized in that, in the ventilation member 10 of the horticultural tunnel 3 described in claim 1 or claim 2, the first covering material 12X and the second covering material 12Y are overlapped at the top of the ventilation member covering sheet 2, and an upper fastener 15A is provided at the overlapping position of the first covering material 12X and the second covering material 12Y.
The present invention described in claim 4 is characterized in that, in the ventilation member 10 of the horticultural tunnel 3 described in claim 3, lower fasteners 15B that can engage with the upper fasteners 15A are provided on the lower end side of the first covering material 12X and the lower end side of the second covering material 12Y.
The present invention as set forth in claim 5 is characterized in that in the ventilation member 10 for the gardening tunnel 3 as set forth in claim 3 , a hook-and-loop fastener is used as the upper fastener 15A .
The present invention described in claim 6 is characterized in that, in the ventilation member 10 for the horticultural tunnel 3 described in any one of claims 1 to 5, it has a stopper 16 that holds the first upper support member 14X and the second upper support member 14Y to the horticultural tunnel 3 in the ventilation state.
The ventilation member 10 of the present invention described in claim 7 is a ventilation member construction method using the ventilation member 10 for a horticultural tunnel 3 described in any one of claims 1 to 6, characterized in that the bottom of a portion of the ventilation member covering sheet 2 arranged along the ridge is separated from the ground to create the ventilated state, and the first covering material 12X and the second covering material 12Y are arranged at the position of the bottom that has been created in the ventilated state.

The ventilation element for a horticultural tunnel of the present invention can be switched from a heat-retaining state to a ventilating state by separating the first and second upper support members from the top of the covering sheet for the ventilation element. This eliminates the need to manually open and close the bottom of the covering sheet for the ventilation element, making it easy to switch between a heat-retaining state and a ventilating state.

FIG. 1 is a conceptual diagram showing a state in which a gardening tunnel is kept warm by a ventilation member for the gardening tunnel according to an embodiment of the present invention; A conceptual diagram showing the state in which the gardening tunnel is ventilated by the ventilation member for the gardening tunnel according to the present embodiment. 1 is a conceptual diagram showing a ventilation member for a horticultural tunnel according to another embodiment of the present invention; FIG. 1 shows the construction of a ventilation member according to this embodiment.

In the first embodiment of the present invention, the ventilation member for a horticultural tunnel is formed by a covering sheet for the ventilation member, which is made up of a first covering material that covers the area from the top to one bottom, and a second covering material that covers the area from the top to the other bottom. A first lower support material is provided at the lower end of the first covering material, a first upper support material is provided at the upper end of the first covering material, a second lower support material is provided at the lower end of the second covering material, and a second upper support material is provided at the upper end of the second covering material. The first lower support material and the second lower support material are fixed at the bottom of the covering sheet for the ventilation member, and the first upper support material and the second upper support material are positioned at the top of the covering sheet for the ventilation member to keep the horticultural tunnel insulated, and the first upper support material and the second upper support material are spaced apart from the top of the covering sheet for the ventilation member to keep the horticultural tunnel ventilated. According to this embodiment, the first and second upper support materials can be separated from the top of the ventilation member covering sheet to switch from the heat-retaining state to the ventilation state, eliminating the need to manually open and close the bottom of the ventilation member covering sheet, and allowing for easy switching between the heat-retaining state and the ventilation state.

The second embodiment of the present invention is a ventilation member for a horticultural tunnel according to the first embodiment, in which a first frame member is provided on both sides of the first covering material, and a second frame member is provided on both sides of the second covering material. This embodiment allows the first covering material and the second covering material to have structural strength.

The third embodiment of the present invention is a ventilation element for a horticultural tunnel according to the first or second embodiment, in which the first covering material and the second covering material are overlapped at the top of the ventilation element covering sheet, and an upper fastener is provided at the overlapping position of the first covering material and the second covering material. This embodiment prevents the first covering material and the second covering material from being lifted by wind, and allows the insulation state to be maintained.

The fourth embodiment of the present invention is a ventilation member for a horticultural tunnel according to the third embodiment, in which lower fasteners that can engage with upper fasteners are provided at the lower end sides of the first covering material and the second covering material. According to this embodiment, in the ventilation state, the first covering material and the second covering material can be kept spaced apart from the ground, preventing the first covering material and the second covering material from becoming soiled and not interfering with workers moving along the ridges.

The fifth embodiment of the present invention uses a hook-and-loop fastener as the upper fastener in the ventilation member for a garden tunnel according to the third embodiment. According to this embodiment, the fastener can be easily engaged and released.

A sixth embodiment of the present invention is a ventilation member for a horticultural tunnel according to any one of the first to fifth embodiments, which includes a stopper that holds the first and second upper support members on the horticultural tunnel in a ventilated state. According to this embodiment, the stopper can hold the first and second upper support members in an upper position above the horticultural tunnel, so that the first and second covering members can be kept spaced apart from the ground in a ventilated state, preventing the first and second covering members from becoming soiled and not interfering with workers moving along the ridges.

A ventilation member installation method according to a seventh embodiment of the present invention uses a ventilation member for a horticultural tunnel according to any of the first to sixth embodiments, and involves separating the bottom of a portion of the covering sheet for the ventilation member arranged along the ridges from the ground to create a ventilated state, and then positioning the main frame member so that the ventilated bottom position is covered with covering material. According to this embodiment, covering the horticultural tunnel with covering material can create a warm state, and separating the support material from the bottom on one side can change the state from a warm state to a ventilated state.

A ventilation member for a horticultural tunnel according to one embodiment of the present invention will now be described.
FIG. 1 is a conceptual diagram showing the state in which a horticultural tunnel is kept warm by a ventilation member for the horticultural tunnel according to this embodiment, where FIG. 1(a) is a conceptual oblique view of the ventilation member, and FIG. 1(b) is a side view of FIG. 1(a).
2A and 2B are conceptual diagrams showing the state in which a horticultural tunnel is ventilated using the ventilation member for the horticultural tunnel according to this embodiment, where FIG. 2A is a conceptual oblique view of the ventilation member, and FIG. 2B is a side view of FIG. 2A.
The ventilation member 10 for the horticultural tunnel 3 in this embodiment is configured by erecting multiple arc-shaped supports 1 at predetermined intervals along the ridges, and covering the multiple supports 1 with a covering sheet 2, and is placed in a part of the horticultural tunnel 3 to cover the ridges.

The ventilation member 10 of the horticultural tunnel 3 in this embodiment has a first covering material 12X that covers the area from the top of the covering sheet 2 to one of its bottom edges, and a second covering material 12Y that covers the area from the top of the covering sheet 2 to the other bottom edge.
A first lower support member 13X is provided at the lower end of the first cladding material 12X, and a first upper support member 14X is provided at the upper end of the first cladding material 12X. Also, a second lower support member 13Y is provided at the lower end of the second cladding material 12Y, and a second upper support member 14Y is provided at the upper end of the second cladding material 12Y.
The first lower support member 13X and the second lower support member 13Y are fixed to the ground at the bottom of the covering sheet 2.

As shown in FIG. 1, the first upper support member 14X and the second upper support member 14Y are positioned on top of the covering sheet 2 to keep the horticultural tunnel 3 warm.
As shown in FIG. 2, the first upper support member 14X and the second upper support member 14Y are spaced apart from the top of the covering sheet 2, thereby making the horticultural tunnel 3 ventilated.
According to this embodiment, the first upper support material 14X and the second upper support material 14Y can be separated from the top of the covering sheet 2 to change from a heat-retaining state to a ventilation state, so there is no need to manually open and close the bottom of the covering sheet 2, and the heat-retaining state and the ventilation state can be easily changed.
Furthermore, by providing a first frame material 11X on both sides of the first covering material 12X and a second frame material 11Y on both sides of the second covering material 12Y, structural strength can be imparted to the first covering material 12X and the second covering material 12Y.

The ventilation member 10 has a first covering material 12X and a second covering material 12Y overlapped at the top of the covering sheet 2, and an upper fastener 15A is provided at the overlapping position of the first covering material 12X and the second covering material 12Y.
By providing the upper fastener 15A, it is possible to prevent the first covering material 12X and the second covering material 12Y from floating up due to wind, and it is possible to maintain a warm state. For example, a hook-and-loop fastener is suitable for the upper fastener 15A. Using a hook-and-loop fastener as the upper fastener 15A makes it easy to lock and unlock the upper fastener 15A. It is also possible to use a magnet for the upper fastener 15A.

2, the ventilation member 10 preferably has a stopper 16 that holds the first upper support member 14X and the second upper support member 14Y to the horticultural tunnel 3 in the ventilated state. The stopper 16 is preferably a connecting member that connects the first frame member 11X or the second frame member 11Y to the support 1. Providing such a stopper 16 can prevent the first covering material 12X and the second covering material 12Y from being detached from the horticultural tunnel 3 by wind and being blown away, resulting in loss.
In addition, since the stoppers 16 can hold the first upper support material 14X and the second upper support material 14Y at a position above the horticultural tunnel 3, the first covering material 12X and the second covering material 12Y can be kept spaced apart from the ground when in a ventilated state, which prevents the first covering material 12X and the second covering material 12Y from becoming dirty and does not hinder workers moving along the ridges.

FIG. 3 is a conceptual diagram showing a ventilation member for a horticultural tunnel according to another embodiment of the present invention.
As shown in the figure, the ventilation member 10 is provided with lower fasteners 15B that can be engaged with the upper fasteners 15A at the lower end side of the first covering material 12X and the lower end side of the second covering material 12Y.
By engaging the upper fastener 15A and the lower fastener 15B, the first covering material 12X and the second covering material 12Y can be kept separated from the ground in a ventilated state, preventing the first covering material 12X and the second covering material 12Y from becoming dirty and not interfering with workers moving along the ridges.

FIG. 4 is a diagram showing the installation of the ventilation member according to this embodiment.
As shown in FIG. 4, the ventilation member 10 of the horticultural tunnel 3 according to this embodiment is installed at a position where a part of the bottom of the covering sheet 2 is spaced apart from the ground.
In this way, by using the ventilation member 10 at a position where a portion of the bottom is separated from the ground, a portion of the bottom of the covering sheet 2 arranged along the ridges is separated from the ground to create a ventilated state, and by arranging the frame members 11X, 11Y so that the ventilated bottom position is covered with the covering materials 12X, 12Y, and by covering the horticultural tunnel 3 with the covering materials 12X, 12Y, it can be placed in an insulated state, and by separating the first upper support member 14X and the second upper support member 14Y from the top of the covering sheet 2, it is possible to change from an insulated state to a ventilated state.

In addition, the first frame material 11X and the second frame material 11Y described in the above embodiment may be ones that maintain their arch-shaped shape, or they may be ones that have elasticity and can be deformed during use.
Furthermore, when the covering sheet 2, the first covering material 12X, and the second covering material 12Y are intended to provide heat retention, translucent films such as polyethylene sheets, vinyl chloride sheets, or polyolefin-based special sheets are generally used. However, when the purposes are light blocking, insect protection, cold protection, or frost protection, optically selective covering materials such as cheesecloth, colored films, ultraviolet control films, and infrared control films are used. Other covering materials that can be used include insect nets, light-blocking nets, and nonwoven fabrics.

The present invention can be used in greenhouse horticulture, and can be installed not only in the open field but also in greenhouses and indoors.It can be used not only in ridge cultivation but also in pot cultivation and hydroponic cultivation, reducing the workload of workers.

1 Support 2 Covering sheet (covering sheet for ventilation member)
3 Horticultural tunnel 10 Ventilation member 11X First frame member 11Y Second frame member 12X First covering member 12Y Second covering member 13X First lower support member 13Y Second lower support member 14X First upper support member 14Y Second upper support member 15A Upper fastener 15B Lower fastener 16 Stopper

Claims (7)

A ventilation element for a horticultural tunnel, in which a plurality of arc-shaped supports are erected at predetermined intervals along the ridges, and a covering sheet is placed between the supports to cover the ridges, and a covering sheet for a ventilation element is placed between the supports in place of the covering sheet,
The covering sheet for a ventilation member is
a first covering material covering a range from the top to one bottom;
and a second covering material covering the range from the top to the other bottom,
a first lower support member is provided at the lower end of the first covering member;
a first upper support member is provided at the upper end of the first covering member;
a second lower support member is provided at the lower end of the second covering member;
a second upper support member is provided at the upper end of the second covering member;
The first lower support material and the second lower support material are fixed at the bottom of the ventilation member covering sheet,
The first upper support member and the second upper support member are positioned on the top of the ventilation member covering sheet to keep the gardening tunnel warm,
A ventilation element for a horticultural tunnel, characterized in that the horticultural tunnel is ventilated by separating the first upper support material and the second upper support material from the top of the covering sheet for the ventilation element. a first frame material is provided on both sides of the first covering material;
2. A ventilation member for a horticultural tunnel according to claim 1, characterized in that second frame members are provided on both sides of the second covering material. overlapping the first covering material and the second covering material at the top of the covering sheet for ventilation member;
A ventilation member for a horticultural tunnel as described in claim 1 or claim 2, characterized in that an upper fastener is provided at the overlapping position of the first covering material and the second covering material. A ventilation member for a horticultural tunnel as described in claim 3, characterized in that lower fasteners that can engage with the upper fasteners are provided on the lower end side of the first covering material and the lower end side of the second covering material. 4. The ventilation element for a gardening tunnel according to claim 3 , wherein a hook-and-loop fastener is used as the upper fastener . A ventilation member for a horticultural tunnel as described in any one of claims 1 to 5, characterized in that it has a stopper that holds the first upper support member and the second upper support member on the horticultural tunnel in the ventilation state. A ventilation member construction method using the ventilation member for a horticultural tunnel according to any one of claims 1 to 6,
the bottom of a part of the covering sheet for the ventilation member arranged along the ridge is spaced from the ground to achieve the ventilation state;
A ventilation member installation method characterized by placing the first covering material and the second covering material at the position of the hem that has been placed in the ventilated state.