【０００１】
【発明の属する技術分野】
本発明は、作物の栽培を行う際に用いる高設栽培棚の組立てにおける高さ調整機構及び該棚組立てに用いる横つなぎ材並びに埋没防止板に関する。
【０００２】
【従来の技術】
作物の栽培は地上に土を盛って行う土耕栽培が一般的であるが、近年、作物の高品質、高生産性のために害虫防止、培地の管理、育成状況管理などが容易で、且つ作業者が立ったままで作業できることから高齢者の作業負荷が軽減できる高設栽培が普及している。高設栽培はビニールハウス内に地上約１ｍ前後に架台を組んでその架台に培地容器や鉢等を設置して培地容器内に硬質パーライト、ピートモス、籾殻、ロックウール等の任意の培地を形成し、温度管理された養液を容器内に供給循環させたり、液滴させながら作物を育成する。
この高設栽培棚の高さは、作業者の作業しやすい高さや作物の種類等によって異なるため、作物の切替に際して高さ調整が必要となる。
【０００３】
従来の高設栽培棚の組立ては、パイプを番線等で筋結して行われていたが、強度や位置決めの難しさから専門の組み立て作業者に頼らざるを得ないことが多かった。そのため、設置作業が短時間に容易に行えて農家の人でも組立てが可能な高設栽培棚が切望されており、例えばと特開２００１−２３１３６７号公報には、地面８に支持穴を所要数配列させて設け、棚支持体の支柱パイプを支持穴に差し込んで複数立設し、連接パイプで支持パイプの上端を架設し、栽培棚本体を棚支持体の上部に取り付ける栽培棚の構築方法及び栽培棚が開示されている。
【０００４】
【発明が解決しようとする課題】
しかしながら、従来の高設栽培棚は、棚支持体の支持パイプが所定長さの一本物で構成されているため、培地容器内に養液を流すための容器の傾斜調整を地盤への支持パイプ差込時に調整する必要があり、また、地盤が傾斜している場合などの培地容器の水平取りが容易に出来ないという課題があった。
さらに、一度組み立てた栽培棚において、作物を切替え培地高さ調整する場合にあっては、栽培棚を解体後再度所定高さに組み替えする必要があった。
【０００５】
そこで本発明のうち請求項１記載の発明は、一度組立てした後の高さ調整であっても棚全体を解体することなく簡単且つ容易に培地容器の高さ調整ができる高設栽培棚の高さ調整機構を提供することを目的とている。
また、請求項２に記載の発明は、請求項１の発明の目的に加えて、高設栽培棚の強度を損なうことの無い横つなぎ材を提供せんとするものである。
更に、請求項３記載の発明は、高設栽培棚組立てに際し地盤が軟弱な場合や段差がある場合にあっても培地容器高さの調整が行いやすく、且つ培地加重によって培地容器が傾斜崩壊しにくい高設栽培用棚の埋没防止板を提供することを目的とする。
【０００６】
【課題を解決するための手段】
上記の目的を達成するために、請求項１記載の発明は、培地容器を支持する複数の横パイプと、前記複数の横パイプを高さ方向に支持する支柱と、前記支柱間を連結する横つなぎ材からなる高設栽培棚における横パイプ高さ調整機構において、支柱外管に高さ調整内管を挿入した前記支柱に、前記支柱外管の外径よりも小さく且つ前記高さ調整内管の外径よりも大きい高さ調整内管挿入孔と該挿入孔の側方に設けられた位置決め穴とを設けた横つなぎ材を挿入して、横つなぎ材を前記支柱外管の上端肉厚部に支持させ、横つなぎ材に挿入した高さ調整内管を前記位置決め穴から位置決めねじにより所定高さに固定する機構である。
【０００７】
本発明によると、支柱外管に挿入した高さ調整用内管を上下させ、横つなぎ材の位置決めねじを締めることで、所定高さに高さ調整内管を固定することができるため、支柱外管はそのままにして培地容器の高さを調整することができる。
【０００８】
また、請求項２記載の発明は、請求項１記載の発明の構成に加えて、横つなぎ材が断面コの字形状であり、位置決め穴はバーリング加工にタップ切りされていることを加えたものである。
本発明によると、断面がコの字形であるため横つなぎ材を容易に成形できるとともに、バーリング加工された内側にタップを切ってあるのでねじ山数が多く締付けでねじ山を壊しにくくすることができる。
【０００９】
さらに請求項３記載の発明は、培地容器を支持する複数の横パイプと、前記複数の横パイプを高さ方向に支持する支柱と、前記支柱間を連結する横つなぎ材からなる高設栽培棚における前記支柱の下部地面で支柱に固着させて用いる所定面積の埋没防止板において、支柱に埋没防止板を固定するための楔打ち込み用隙間を有する支柱挿入孔を設けたものである。
本発明によると、地面において支柱に埋没防止板を固定するに際し、横方向ではなく、上方から楔を打ち込むだけで固定できるため作業しやすく、また、地面に凹凸があった場合にあっても埋没防止板も殴打しながら楔打ち込みを行うことで地面を安定強化できる。
【００１０】
【発明の実施の形態】
以下に本発明による好適な実施例を、図面に基づいて詳細に説明する。図１、図２は本発明を適用した高設栽培棚の斜視図であり、図３、図６及び図７は本発明の高さ調整機構を説明する横つなぎ材の実施例であり、図４、図８及び図９は埋没防止板の実施例である。
【００１１】
まず、本発明を適用する高設栽培棚について説明する。図１及び図２に示す高設栽培棚１は、支柱３が２本構成の実施例である。支柱３は支柱外管３２に高さ調整内管３１を挿入して構成し、前後２本の支柱３は横つなぎ材４で所定幅に連結される。この前後２本の支柱３を横方向に複数設置し、ジョイント材７を取付けた横パイプ６を支柱上端、すなわち高さ調整内管上端に挿入することにより図１の棚を形成する。支柱外管３２の地上部には埋没防止板５を楔５３で固定し高設栽培棚１の沈み込みや傾斜崩壊を防止する。
【００１２】
請求項１に記載の発明は、各支柱３を支柱外管３２と該支柱外管３２に挿入可能な外径からなる高さ調整内管３１で構成し、横つなぎ材４に設けた側方位置決め穴４２から位置決めねじ４３にて高さ調整内管３１を固定することにより所定高さの高設栽培棚１とする高さ調整機構である。横つなぎ材４には高さ調整内管挿入孔４１が複数設けてあり、該挿入孔の大きさは支柱外管３２の外径よりも小さく且つ前記高さ調整内管３１の外径よりも大きくして、横つなぎ材４を支柱外管３２の上端肉厚部にて支持させる構造となっている。また、横つなぎ材４の側方には高さ調整内管３１の高さを固定するための位置決め穴４２があり位置決めねじ４３が螺合可能になっている。
【００１３】
本発明の高さ調整機構の実施例を図３、図６及び図７に示す。これらの実施例では支柱３が丸パイプの場合を例示しているが、本発明の特徴は支柱外管３２をそのままにして高さ調整内管３１で横パイプ６高さを調整できる機構にあるため、支柱３が角パイプ等であってもよい。また、横つなぎ材４も図の如く角管や丸管が使用できるが、好ましくは鋼板を折り曲げ加工した断面コの字形状で、且つ位置決め穴４２がバーリング加工でタップ切りされている横つなぎ材４を用いることが、加工が容易で安価な高設栽培棚１とすることが出来る。棚の耐強度性を確保するには横つなぎ材４の鋼板厚みは１．２ｍｍ以上あれば十分である。例えば高さ調整内管Φ１９．１ｍｍ、支柱外管Φ２２．２ｍｍの支柱を使用する場合の横つなぎ材４の高さ調整内管挿入孔４１の大きさはΦ２０ｍｍ程度とし、バーリング加工後のタップ切りはＭ６程度とするとよい。
【００１４】
次に請求項３に記載の埋没防止板５について説明する。本発明の特徴は支柱３が地盤内に沈下することを防止するためのもので、埋没防止板５の支柱挿入孔５１に楔５３を打ち込む簡単な作業で支柱外管３２に埋没防止板５を固定するものである。本発明の埋没防止板５は所定の面積を有する鋼板に支柱挿入孔５を設けたものであり、該挿入孔は挿入された支柱３との間に楔５３が打ち込める隙間５２を有する形状である。埋没防止板５の実施例を図４、図８及び図９に示す。図８は高設栽培棚１をほぼ平らな地面に設置する場合の実施例であり、前後２本の支柱外管３２が挿入できるタイプのもので、図４及び図９は地面８に段差がある場合に各々の支柱外管別に使用するものである。図に示す如く楔５３打ち込み用隙間５２の数や形状は複数考えられるが、図３に示す前方後円墳形状の支柱挿入孔５１で確実に固定できる。また、埋没防止板５の板厚さも２．３ｍｍ程度以上のものであれば十分である。
【００１５】
本発明の高設栽培棚１はビニールハウス内などの高湿度環境に設置される場合が多い。そのため、棚の耐食性を向上させるたために、支柱３、横パイプ６、横つなぎ材４、埋没防止板５などの材料としては、めっきや塗装などの表面処理を施した素材を使用することが好ましい。めっき材としては、Ｚｎ系、Ｚｎ−５％Ａｌ系、Ｚｎ−Ａｌ−Ｍｇ系のものが使用される。塗装を施さない裸使用にあっては、特に耐食性の優れたＺｎ−Ａｌ−Ｍｇ系のめっき材を使用することが好ましい。
【００１６】
次に高設栽培棚１の組立て方法について説明する。高設栽培棚１の組立てはまず前後支柱３及び横方向の支柱３の打ち込み位置を墨出しして、墨出しされた位置に支柱外管３２を打ち込む。この打ち込みは支柱外管３２が自立する程度の深さに打ち込めばよく、その後に其々の支柱外管３２に埋没防止板５を挿入セットして楔５３を打ち込み固定する。楔５３打ち込みに際しては前後の支柱外管３２の上端レベルを水平に合わせて楔５３で固定する。次いで位置決めねじ４３で横つなぎ材４に高さ調整内管３１を仮留めした状態で前後の支柱外管３２に高さ調整内管３１を挿入する。横パイプ６には横方向の支柱３間隔に合わせてジョイント材７を事前にセットしておき、ジョイント材７を順次高さ調整内管３１の管内に差し込むことにより高設栽培棚１を構築して行く。
【００１７】
一旦仮構築が完了すると最終高さ調整を行う。この最終高さ調整は適切作業高さ、培地容器２内での養液流れ傾斜などを考慮して、先に仮止めした横つなぎ材４の位置決めねじ４３を本締めすることにより行う。尚、この本締めに際しては、横パイプ６と高さ調整内管３１上部の当りの調整も行いながら組立てる。その後培地容器２を横パイプ６上に載荷して高設栽培棚１の構築を完了する。
【００１８】
【発明の効果】
この発明にかかる高設栽培棚用の高さ調整機構及び横つなぎ材並びに埋没防止板は、以上説明した如き内容のものなので、農家の人でも短時間且つ容易に高設栽培棚を組立てることができるという効果がある。
以上説明したように、この発明のうち請求項１記載の発明は、支柱外管に挿入した高さ調整用内管を上下させ、横つなぎ材の位置決めねじを締めることで、所定高さに高さ調整内管を固定することができるため、支柱外管はそのままにして培地容器の高さを調整することができるという効果があり、更に請求項２記載の発明は断面がコの字形であるため横つなぎ材を容易に成形できるとともに、バーリング加工された内側にタップが切ってあるのでねじ山数が多く締付けでねじ山を壊しにくくすることができる効果がある。
【００１９】
また、請求項３記載の発明は、地面において支柱に埋没防止板を固定するに際し、横方向ではなく、上方から楔を打ち込むだけで固定できるため作業しやすく、また、地面に凹凸があった場合にあっても埋没防止板も殴打しながら楔打ち込みを行うことで地面を安定強化できるという効果がある。
【図面の簡単な説明】
【図１】本発明を適用した高設栽培棚に培地容器を載置した斜視図である。
【図２】本発明を適用した高設栽培棚の斜視図である。
【図３】本発明の高さ調整機構を説明する横つなぎ材の一実施例である。
【図４】本発明の埋没防止板の一実施例である。
【図５】高設栽培棚に使用するジョイント材の一実施例である。
【図６】高さ調整機構を説明する横つなぎ材の他の実施例である
【図７】高さ調整機構を説明する横つなぎ材の他の実施例である
【図８】埋没防止板の他の実施例である。
【図９】埋没防止板の他の実施例である。
【符号の説明】
１ 高設栽培棚
２ 培地容器
３ 支柱
３１ 高さ調整内管
３２ 支柱外管
４ 横つなぎ材
４１ 高さ調整内管挿入孔
４２ 位置決め穴
４３ 位置決めねじ
５ 埋没防止板
５１ 支柱挿入孔
５２ 隙間
５３ 楔
６ 横パイプ
７ ジョイント材
８ 地面[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a height adjustment mechanism for assembling an erect cultivation shelf used when cultivating a crop, a horizontal connecting member used for assembling the shelf, and an burial prevention plate.
[0002]
[Prior art]
Cultivation of crops is generally soil cultivation performed by laying soil on the ground, but in recent years, high quality of crops, prevention of pests for high productivity, management of culture media, management of growing condition, etc. are easy, and Elevated cultivation, which can reduce the workload of the elderly because workers can work while standing, has become widespread. In the erecting cultivation, a pedestal is set up about 1 m above the ground in a greenhouse, and a medium container or a pot is installed on the pedestal, and an arbitrary medium such as hard pearlite, peat moss, chaff, rock wool is formed in the medium container. The crop is grown while supplying and circulating a nutrient solution whose temperature is controlled in the container, or by dropping the liquid.
Since the height of the elevated cultivation shelf varies depending on the height at which the worker can easily work, the type of crop, and the like, it is necessary to adjust the height when switching crops.
[0003]
Conventionally, assembling of an elevated cultivation shelf has been performed by connecting pipes with a wire or the like, but in many cases, it has been necessary to rely on a specialized assembling operator due to strength and difficulty in positioning. Therefore, there is a long-felt need for an elevated cultivation shelf that can be easily set up in a short time and that can be assembled by a farmer. For example, Japanese Patent Application Laid-Open No. 2001-231367 discloses that a required number of support holes are provided on the ground 8. Arranged and provided, a plurality of support pipes of the shelf support are inserted into the support holes, a plurality of the support pipes are erected, the upper end of the support pipe is erected with a connecting pipe, and the cultivation shelf main body is mounted on the upper part of the shelf support. A growing shelf is disclosed.
[0004]
[Problems to be solved by the invention]
However, in the conventional elevated cultivation shelf, since the support pipe of the shelf support is made of a single piece of a predetermined length, the inclination of the container for flowing the nutrient solution into the culture medium container is adjusted by the support pipe to the ground. There is a problem that it is necessary to adjust at the time of insertion, and it is not easy to level the culture medium container when the ground is inclined.
Furthermore, in the case where the crop is switched and the medium height is adjusted in the cultivation shelf once assembled, it is necessary to reassemble the cultivation shelf to a predetermined height after dismantling.
[0005]
Therefore, the invention according to claim 1 of the present invention provides a height of an elevated cultivation shelf that can easily and easily adjust the height of a culture container without dismantling the entire shelf even if the height is adjusted once assembled. It is an object of the present invention to provide an adjusting mechanism.
In addition, the invention described in claim 2 aims to provide a horizontal connecting material that does not impair the strength of the elevated cultivation shelf, in addition to the object of the invention described in claim 1.
Further, the invention according to claim 3 is that, when assembling the elevated cultivation shelf, the height of the medium container is easily adjusted even when the ground is soft or there is a step, and the medium container tilts and collapses due to the weight of the medium. It is an object of the present invention to provide a board for preventing burial of a shelf for high cultivation which is difficult.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 includes a plurality of horizontal pipes supporting a culture vessel, a column supporting the plurality of horizontal pipes in a height direction, and a horizontal line connecting the columns. In the horizontal pipe height adjusting mechanism in an elevated cultivation shelf made of a linking material, the column in which a height adjusting inner tube is inserted into a column outer tube has a height smaller than the outer diameter of the column outer tube and the height adjusting inner tube. Inserting a horizontal connecting member provided with a height adjusting inner tube insertion hole larger than the outer diameter of the inner tube and a positioning hole provided on a side of the insertion hole, and transferring the horizontal connecting member to the upper end wall thickness of the column outer tube. And a mechanism for fixing the height-adjusting inner pipe inserted into the horizontal connecting member to a predetermined height from the positioning hole with a positioning screw.
[0007]
According to the present invention, the height adjustment inner pipe inserted into the pillar outer pipe is moved up and down, and the height adjustment inner pipe can be fixed at a predetermined height by tightening the positioning screw of the horizontal connecting member. It is possible to adjust the height of the culture vessel without changing the outer tube.
[0008]
The invention according to claim 2 is the same as the structure according to claim 1, except that the horizontal connecting member has a U-shaped cross section and the positioning hole is burred by tapping. It is.
According to the present invention, since the cross-section is U-shaped, the horizontal connecting member can be easily formed, and the tapping is cut inside the burring process, so that the number of threads is large, so that it is difficult to break the threads by tightening. it can.
[0009]
Further, the invention according to claim 3 is an elevated cultivation shelf comprising a plurality of horizontal pipes supporting a culture medium container, a support supporting the plurality of horizontal pipes in a height direction, and a horizontal connecting material connecting the supports. In the burial prevention plate having a predetermined area used by being fixed to the column on the ground below the column, a column insertion hole having a wedge driving gap for fixing the burial prevention plate to the column is provided.
According to the present invention, when fixing the burial prevention plate to the pillar on the ground, it is easy to work because it can be fixed only by driving the wedge from above, not from the side, and it is easy to work even if there is unevenness on the ground Performing wedge driving while hitting the prevention plate can also strengthen the ground stably.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. FIGS. 1 and 2 are perspective views of an elevated cultivation shelf to which the present invention is applied, and FIGS. 3, 6 and 7 are examples of a horizontal connecting member for explaining a height adjusting mechanism of the present invention. 4, 8 and 9 show embodiments of the burial prevention plate.
[0011]
First, an elevated cultivation shelf to which the present invention is applied will be described. The elevated cultivation shelf 1 shown in FIGS. 1 and 2 is an example in which two columns 3 are provided. The column 3 is constructed by inserting a height-adjusting inner tube 31 into a column outer tube 32, and the two front and rear columns 3 are connected to a predetermined width by a horizontal connecting member 4. A plurality of the front and rear two columns 3 are installed in the horizontal direction, and the horizontal pipe 6 to which the joint member 7 is attached is inserted into the upper end of the column, that is, the upper end of the height adjustment inner pipe, thereby forming the shelf shown in FIG. The burial prevention plate 5 is fixed to the above-ground portion of the column outer tube 32 with a wedge 53 to prevent the elevated cultivation shelf 1 from sinking or falling down.
[0012]
According to the first aspect of the present invention, each of the columns 3 is composed of a column outer tube 32 and a height-adjusting inner tube 31 having an outer diameter that can be inserted into the column outer tube 32. This is a height adjustment mechanism that fixes the height adjustment inner tube 31 from the positioning hole 42 with a positioning screw 43 to make the erect cultivation shelf 1 of a predetermined height. The horizontal connecting member 4 is provided with a plurality of height adjusting inner tube insertion holes 41, the size of which is smaller than the outer diameter of the support outer tube 32 and larger than the outer diameter of the height adjusting inner tube 31. The structure is made larger so that the horizontal connecting member 4 is supported by the thick portion at the upper end of the column outer tube 32. Further, a positioning hole 42 for fixing the height of the height adjusting inner tube 31 is provided on a side of the horizontal connecting member 4, and a positioning screw 43 can be screwed therein.
[0013]
Embodiments of the height adjusting mechanism of the present invention are shown in FIGS. 3, 6, and 7. FIG. In these embodiments, the case where the column 3 is a round pipe is illustrated, but the feature of the present invention is a mechanism that can adjust the height of the horizontal pipe 6 with the height adjustment inner tube 31 while leaving the column outer tube 32 as it is. Therefore, the column 3 may be a square pipe or the like. As shown in the figure, the horizontal connecting member 4 can be a square tube or a round tube, but is preferably a U-shaped cross section obtained by bending a steel plate, and the positioning hole 42 is tapped by burring. The use of No. 4 makes it possible to provide an inexpensive high cultivation shelf 1 that is easy to process. In order to ensure the strength of the shelf, it is sufficient that the thickness of the steel plate of the horizontal connecting member 4 is 1.2 mm or more. For example, in the case of using a column having a height adjustment inner tube of Φ19.1 mm and a column outer tube of Φ22.2 mm, the size of the height adjustment inner tube insertion hole 41 of the horizontal connecting member 4 is about Φ20 mm, and tapping after burring is performed. Should be about M6.
[0014]
Next, a burying prevention plate 5 according to a third aspect will be described. The feature of the present invention is to prevent the column 3 from sinking into the ground. The simple operation of driving a wedge 53 into the column insertion hole 51 of the burial prevention plate 5 allows the burial prevention plate 5 to be inserted into the column outer tube 32. It is fixed. The burial prevention plate 5 of the present invention is provided with a column insertion hole 5 in a steel plate having a predetermined area, and the insertion hole has a shape having a gap 52 into which a wedge 53 can be driven between the column and the inserted column 3. . An embodiment of the burial prevention plate 5 is shown in FIGS. FIG. 8 shows an embodiment in which the elevated cultivation shelf 1 is installed on a substantially flat ground, and a type in which two front and rear pillar outer tubes 32 can be inserted. FIGS. 4 and 9 show a step on the ground 8. In some cases, it is used separately for each pillar outer tube. Although the number and shape of the gap 52 for driving the wedge 53 can be considered to be plural as shown in the figure, the wedge 53 can be securely fixed by the column insertion hole 51 having the shape of a rear tumulus shown in FIG. It is sufficient that the thickness of the burial prevention plate 5 is about 2.3 mm or more.
[0015]
The elevated cultivation shelf 1 of the present invention is often installed in a high humidity environment such as in a greenhouse. Therefore, in order to improve the corrosion resistance of the shelf, it is preferable to use a material that has been subjected to a surface treatment such as plating or painting as a material for the column 3, the horizontal pipe 6, the horizontal connecting material 4, the burial prevention plate 5, and the like. . As a plating material, a Zn-based, Zn-5% Al-based, or Zn-Al-Mg-based plating material is used. For naked use without painting, it is preferable to use a Zn-Al-Mg-based plating material having particularly excellent corrosion resistance.
[0016]
Next, a method of assembling the elevated cultivation shelf 1 will be described. In assembling the erecting cultivation shelf 1, first, the positions where the front and rear struts 3 and the lateral struts 3 are driven are marked, and the strut outer tube 32 is driven into the marked positions. This driving can be performed by driving the column outer tube 32 to a depth that allows the column outer tube 32 to stand on its own. Thereafter, the burial prevention plate 5 is inserted and set in each column outer tube 32, and the wedge 53 is driven and fixed. When driving the wedge 53, the upper end levels of the front and rear column outer tubes 32 are horizontally aligned and fixed with the wedge 53. Next, the height-adjusting inner pipe 31 is inserted into the front and rear support outer pipes 32 while the height-adjusting inner pipe 31 is temporarily fixed to the horizontal connecting member 4 with the positioning screw 43. The joint material 7 is set in advance in the horizontal pipe 6 in accordance with the interval between the columns 3 in the horizontal direction, and the elevated joint shelf 7 is constructed by sequentially inserting the joint material 7 into the height adjusting inner pipe 31. Go.
[0017]
Once the temporary construction is completed, final height adjustment is performed. This final height adjustment is performed by fully tightening the positioning screw 43 of the horizontal connecting member 4 temporarily fixed in consideration of an appropriate working height, inclination of the nutrient solution flow in the medium container 2, and the like. At the time of this final fastening, the horizontal pipe 6 and the upper part of the height adjusting inner pipe 31 are assembled while adjusting the contact. Thereafter, the culture vessel 2 is loaded on the horizontal pipe 6 to complete the construction of the elevated cultivation shelf 1.
[0018]
【The invention's effect】
Since the height adjustment mechanism, the horizontal connecting member, and the burial prevention plate for the elevated cultivation shelf according to the present invention are as described above, even the farmer can easily and quickly assemble the elevated cultivation shelf. There is an effect that can be.
As described above, the invention according to claim 1 of the present invention raises and lowers the inner tube for height adjustment inserted into the outer tube of the column, and tightens the positioning screw of the horizontal connecting member to increase the height to a predetermined height. Since the adjustment inner tube can be fixed, there is an effect that the height of the culture medium container can be adjusted while keeping the support outer tube as it is, and the cross-sectional shape of the invention according to claim 2 is U-shaped. Therefore, the horizontal connecting member can be easily formed, and the tapping is cut inside the burring process, so that the number of screw threads is large and the screw threads are hardly broken by tightening.
[0019]
According to the third aspect of the present invention, when the burial prevention plate is fixed to the pillar on the ground, the work can be easily performed because the wedge can be fixed only by driving the wedge from above, not in the lateral direction, and when the ground has irregularities. However, even when the burial prevention plate is used, it is possible to stably strengthen the ground by driving the wedge while hitting the burial prevention plate.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a medium container placed on an elevated cultivation shelf to which the present invention is applied.
FIG. 2 is a perspective view of an elevated cultivation shelf to which the present invention is applied.
FIG. 3 is an embodiment of a horizontal connecting member for explaining a height adjusting mechanism of the present invention.
FIG. 4 is an embodiment of the burial prevention plate of the present invention.
FIG. 5 is an example of a joint material used for an elevated cultivation shelf.
FIG. 6 shows another embodiment of the horizontal connecting member for explaining the height adjusting mechanism. FIG. 7 shows another embodiment of the horizontal connecting member for explaining the height adjusting mechanism. This is another embodiment.
FIG. 9 shows another embodiment of the burial prevention plate.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 elevated cultivation shelf 2 culture medium container 3 support 31 height adjusting inner tube 32 support outer tube 4 horizontal connecting member 41 height adjusting inner tube insertion hole 42 positioning hole 43 positioning screw 5 burial prevention plate 51 support insertion hole 52 gap 53 wedge 6 Horizontal pipe 7 Joint material 8 Ground
