JP3143251U

JP3143251U - Coating sheet

Info

Publication number: JP3143251U
Application number: JP2008002040U
Authority: JP
Inventors: 鴻一井川
Original assignee: 井川種苗株式会社
Priority date: 2008-04-02
Filing date: 2008-04-02
Publication date: 2008-07-17
Anticipated expiration: 2018-04-02

Abstract

【課題】マルチシートで覆われた畝に植付けられた植物の防寒用、防霜用、防風用あるいは日除け用として使用し、かつ内部の蒸れを防止し得、しかも活着後伸長してきた植物の力によってシートを押し破ることができ、植物の生長を阻害することがない被覆シートを提供する。
【解決手段】マルチシートで覆われた畝に植付けられた植物を上方から覆って敷設するようにした所定幅で長尺の被覆シート１０であって、両側縁部にはマルチシートに接着して敷設するための粘着部１４、１５を有すると共に、複数の所定長さの切込み１６と１７、１８と１９を線状に連結し、かつ所定挟角を有するように山形状としてなる山形切込み線２２を頂部Ｔが被覆シート１０自体の長さ方向を向くようにした状態で所定間隔Ｆで繰り返して配置され、しかも山形切込み線２２の頂部Ｔが被覆シート自体の幅方向の中心部付近に位置するようにした被覆シート１０を構成する。
【選択図】図１
[PROBLEMS] To use a plant planted in a multi-sheet covered cocoon for cold protection, frost protection, wind protection or awning, to prevent internal stuffiness, and to extend the power of plants that have been stretched after being attached. Thus, a coated sheet that can push through the sheet and does not inhibit plant growth is provided.
A long covering sheet 10 having a predetermined width and arranged to cover and lay a plant planted in a cocoon covered with a multi-sheet from above, and bonded to the multi-sheet at both side edges. In addition to having adhesive portions 14 and 15 for laying, a plurality of cuts 16 and 17, 18 and 19 having a predetermined length are connected in a line, and a mountain-shaped cut line 22 is formed in a mountain shape so as to have a predetermined included angle. Are repeatedly arranged at a predetermined interval F with the top portion T facing the length direction of the covering sheet 10 itself, and the top portion T of the angled cut line 22 is located near the center portion in the width direction of the covering sheet itself. The cover sheet 10 thus configured is configured.
[Selection] Figure 1

Description

本考案は植え付けられた植物を覆って保護する被覆シートに関するものであり、特にマルチシートで覆われた圃場（または畝）に植え付けられた植物の防寒用、防霜用、防風用あるいは日除け用として使用し、しかも内部の蒸れを防止し得る被覆シートに関するものである。 The present invention relates to a covering sheet that covers and protects a plant that has been planted, and in particular, as a cold protection, frost protection, wind protection or sunshade for a plant planted in a field (or straw) covered with a multi-sheet. The present invention relates to a covering sheet that can be used and can prevent internal stuffiness.

従来よりマルチシートで覆われた圃場に植え付けられた植物、例えばマルチシートで覆われた畝に植え付けられたいも苗（挿し苗）を活着するまで、強い日差しや早期栽培での寒害、霜害、風害等から保護するためにわらや草等で覆い、風で飛ばされないように盛り土することが行われているが、作業に長時間を要し、作業者が疲労し易く、また近年わらや草等が入手し難いという問題点があった。また、マルチシートで覆われた畝に植え付けられた馬鈴薯等の発芽時には、寒害、霜害、風害等から保護するには、いも苗の場合と同様な作業が必要であり、同様な問題点があった。 Until recently, plants planted in fields covered with multi-sheets, for example, potato seedlings (cutting seedlings) that are to be planted in multi-sheet-covered pods, are exposed to cold, frost and wind damage in strong sunlight and early cultivation. It is covered with straw or grass in order to protect it from the earth, and embankment is carried out so that it is not blown away by the wind, but it takes a long time to work and the worker is easily fatigued. However, it was difficult to obtain. In addition, when germinating a potato planted in a cocoon covered with a multi-sheet, in order to protect it from cold damage, frost damage, wind damage, etc., work similar to that of potato seedlings is necessary, and there are similar problems. It was.

そこで、これを解消するため、畝に植え付けられた植物（挿し苗）を覆うようにした被覆シートの使用が提案されている。例えば、特開平８−８９１０３号公報、特開２００６−２５６１５号公報記載の発明がこれである。これらは、ロール状に捲回した被覆シートを捲き解しつつ、その両縁部に配置した粘着テープをマルチシートに接着しつつ前進し、同時に植物（挿し苗）を覆うようにして敷設するようにしたものであり、風には吹き飛ばされることはないが、植物が生長し、芽や茎葉が伸び茂ってくると被覆シートを押し拡げようとするようになるが、被覆シートにより自由な伸長が阻害され、植物の成長の支障になるので、そのような状態になると短期間に被覆シートを取り除かなければならないという問題点があった。また、被覆シートは両側が粘着テープでマルチシート上に接着されるので、内側が気密になり易い上に植物の成長が盛んになってくると被覆シート内側の隙間が小さくなり，蒸れて植物が傷むという問題点があった。
特開平８−８９１０３号公報特開２００６−２５６１５号公報 Then, in order to eliminate this, use of the covering sheet which covered the plant (cutting seedling) planted in the cocoon has been proposed. For example, this is the invention described in JP-A-8-89103 and JP-A-2006-25615. These are laid so as to cover the plants (cutting seedlings) at the same time while unraveling the covering sheet wound in a roll and adhering the adhesive tape arranged on both edges thereof to the multi-sheet. Although it is not blown away by the wind, when the plant grows and the buds and foliage grows and thickens, it tries to spread the covering sheet, but the covering sheet does not stretch freely. Since it is hindered and hinders the growth of plants, there has been a problem that in such a state, the coated sheet must be removed in a short time. In addition, since both sides of the cover sheet are bonded to the multi-sheet with adhesive tape, the inside of the cover sheet is likely to be airtight and when the growth of the plant becomes vigorous, the gap inside the cover sheet becomes small, and the steamed plant There was a problem of being damaged.
JP-A-8-89103 JP 2006-25615 A

本考案の解決すべき問題点は、植物が生長し大きくなってくると、被覆シートの外に出られず、伸長の妨げとなるので、極めて短期間に被覆シートを除去しなければならないという点であり、また被覆シート内が蒸れて植物が傷み易いという点である。本願考案者は種々研究を続けているうちに被覆シートにある工夫をを施すことによりこれらの問題点を解決し得ることを見いだし、本願考案に想到したものである。
本考案はこのような事情を背景としてなされたものであり、本考案の目的は植物が寒害、霜害、風害等の被害を回避し得ると共に、ある程度通風可能として被覆シート内の蒸れを防止し得る被覆シートを提供することである。また、植物が生長し被覆シート内で茎葉が大きく伸長してきたときにおいても、植物の力により被覆シートを押し破り、外に伸長し得る被覆シートを提供することである。 The problem to be solved by the present invention is that when the plant grows and grows, it cannot be removed from the covering sheet and hinders extension, so the covering sheet must be removed in a very short time. In addition, the inside of the covering sheet is steamed and plants are easily damaged. The inventor of the present application has found that the problems can be solved by devising the cover sheet while conducting various studies, and has come up with the present invention.
The present invention was made against the background of such circumstances, and the object of the present invention is to prevent plants from being damaged by cold, frost, wind damage, etc., and to prevent steaming in the coating sheet by allowing some ventilation. It is to provide a covering sheet. Another object of the present invention is to provide a covering sheet that can be extended to the outside by pushing the covering sheet with the force of the plant even when the plant grows and the foliage is greatly extended in the covering sheet.

このような目的を達成するためになされた本考案は、次のように構成される。
Ａマルチシートに覆われた畝に植付けられた植物を上方から覆って敷設するようにした所定幅で長尺の被覆シートであって、両側縁部にはマルチシートに接着して敷設するための粘着部を有すると共に、複数の所定長さの切込みを線状に連結し、かつ所定の挟角を有するように山形状としてなる山形切込み線を頂部が被覆シート自体の長さ方向を向くようにした状態で所定間隔で繰り返して配置され、しかも山形切込み線の頂部が被覆シート自体の幅方向の中心部付近に位置するようにした被覆シート。
ＢＡ項記載の被覆シートにおいて、被覆シート自体が樹脂シートもしくは耐水性の紙シートであり、使用前はロール状に捲回され、使用時には捲き解しつつ両縁部をマルチシート上に接着して敷設できるようにした被覆シート。
ＣＡ項もしくはＢ項記載の被覆シートにおいて、被覆シート自体は耐水性の紙シートであり、各山形切込み線の頂部は被覆シート自体の長手方向の中心線上付近に位置し、かつ該山形切込み線を構成する複数の切込みを線状に連結してなる傾斜した両側辺は、前記長手方向の中心線に対し垂直かつ山形切込み線の頂部を通る垂線に対しそれぞれ約１０〜２０度傾斜し、さらに長さが約１７〜２７ｍｍの２つの切込みが約３〜７ｍｍの間隔で配置され、しかも各山形切込み線は被覆シート自体の長手方向に約５０〜７０ｍｍの間隔で繰り返し配置されるようにした被覆シート。
ＤＡ項〜Ｃ項のいずれか１項に記載の被覆シートにおいて、被覆シート自体がポリエチレンを含有する単位面積当たりの重量が３８〜４２ｇｒ／ｍ^２の耐水紙で構成された被覆シート。 The present invention made to achieve such an object is configured as follows.
A A long covering sheet having a predetermined width that covers and lays a plant planted in a cocoon covered with a multi-sheet from above, for adhering and laying the multi-sheet on both side edges. In addition to having an adhesive portion, a plurality of cuts of a predetermined length are connected in a line, and a mountain-shaped cut line that has a mountain shape so as to have a predetermined included angle is such that the top portion faces the length direction of the covering sheet itself In this state, the covering sheet is arranged repeatedly at a predetermined interval, and the top of the angled cut line is positioned near the center of the covering sheet itself in the width direction.
B In the covering sheet described in paragraph A, the covering sheet itself is a resin sheet or a water-resistant paper sheet, which is wound into a roll shape before use, and is bonded to both edges on the multi-sheet while being unwound during use. A covering sheet that can be installed.
In the covering sheet according to the item A or B, the covering sheet itself is a water-resistant paper sheet, the top of each chevron cut line is located near the longitudinal center line of the cover sheet itself, and the chevron cut line The slanted sides formed by connecting a plurality of cuts forming a straight line are each tilted by about 10 to 20 degrees perpendicular to the longitudinal center line and perpendicular to the top of the angled cut line, and A coating in which two cuts having a length of about 17 to 27 mm are arranged at intervals of about 3 to 7 mm, and each angle cut line is repeatedly arranged at intervals of about 50 to 70 mm in the longitudinal direction of the coating sheet itself Sheet.
The covering sheet according to any one of Items A to C, wherein the covering sheet itself is made of water-resistant paper having a weight per unit area of 38 to 42 gr / m ² containing polyethylene.

本考案は上述のように構成されているので、次に記載する効果を奏する。
長尺の被覆シートには、複数の所定長さの切込み線を線状に連結し、かつこれを山形とした山形切込み線が配置されているので、被覆シートの敷設後に植物（いも苗）が生長し茂ってきた場合植物自体の伸長力により山形切込み線の裂け目を押し広げ、あるいは押し破って外部に出るようになる。従って、人力により早急に被覆シートを取り除かなくてもよいという利点がある。さらに、切込み線は一つの直線方向ではなく平面上山形をなして存在しているので、前記山形切込み線を押し破ろうとする力は面状に広がることになる。さらにまた、山形切込み線は被覆シートの長手方向に所定間隔で繰り返し、多数配置されているので、山形切込み線を押し破ろうとする植物の作用は、敷設された被覆シートの全長に渡って及ぶことになる。 Since this invention is comprised as mentioned above, there exists an effect described below.
In the long covering sheet, a plurality of cut lines having a predetermined length are connected in a line, and a mountain-shaped cutting line having a mountain shape is arranged, so that a plant (potato seedling) is formed after the covering sheet is laid. When the plant grows and grows, the elongation force of the plant itself pushes the crevice of the Yamagata incision line or breaks it out and comes out. Therefore, there is an advantage that it is not necessary to remove the covering sheet immediately by human power. Furthermore, since the cut line exists in a mountain shape on a plane instead of one linear direction, the force to push through the mountain cut line spreads in a planar shape. Furthermore, since the angle cut lines are repeatedly arranged at predetermined intervals in the longitudinal direction of the covering sheet, the action of the plant trying to push the angle cut lines extends over the entire length of the covering sheet laid. become.

また、切込み線の部分は、雨が降ったり風を受けたりした後には、部分的に口が開き、通風口ともなるので、風が吹いたとき適度に通風し、被覆シート内が蒸れることを防止できる。さらに、被覆シートとして、ポリエチレン等を含有する所定強度の耐水紙を使用するときは、敷設後の被覆シートに形成された通風口はその形状を保持し易い。 In addition, the part of the cut line will open partly after it rains or receives wind, and it will also become a vent, so when the wind blows, it will ventilate properly and the inside of the covering sheet will be muggy It can be prevented. Furthermore, when water-resistant paper having a predetermined strength containing polyethylene or the like is used as the covering sheet, the vent hole formed in the covering sheet after laying easily maintains its shape.

本考案を実施するには、被覆シートとしてポリエチレンを含有する耐水紙で単位面積当たりの重量が３８〜４２ｇｒ／ｍ^２のものを使用するが、４２ｇｒ／ｍ^２のものが、雨や風を受けたときに破損し難く、敷設後の被覆シートの形状を保持し、被覆シート内の空間部容積をなるべく大きな状態のままで長く保持し易いという点で、強度的には望ましい。 To implement the present invention is the weight per unit area with a water-resistant paper containing polyethylene as a covering sheet to use those 38~42gr / m ^2, those of 42gr / m ^2, subjected to rain and wind This is desirable in terms of strength in that it is difficult to break, and the shape of the covering sheet after laying is maintained, and the space volume in the covering sheet is easily maintained as long as possible.

被覆シートは、敷設時にマルチシートで覆われた畝に植え付けられた植物を空間部を隔てて覆い、かつマルチシートに接着できる程度の幅が必要である。なお、被覆シートの両縁部には、敷設時マルチシートに接着し得る所定幅の粘着部が設けられている。被覆シートには、複数の所定長さの切込み線を所定間隔で線状に連結し、かつこれを山形とした山形切込み線が配置されるが、その頂部は被覆シートの長手方向の中心線上付近に位置し、かつ山形切込み線を構成する両側の傾斜した線（切込み線）は、被覆シートの長手方向の中心線に垂直かつ山形切込み線の頂点を通る垂線に対し所定角度（約１０ないし２０度）で傾斜している。
すなわち、山形切込み線の挟角は約１４０〜１６０度である。 The covering sheet needs to have a width enough to cover the plant planted in the cocoon covered with the multi-sheet at the time of laying with the space portion therebetween and adhere to the multi-sheet. In addition, the adhesive part of the predetermined width | variety which can be adhere | attached on the multi-sheet at the time of laying is provided in the both edge part of the coating sheet. In the covering sheet, a plurality of cutting lines of a predetermined length are connected in a line at predetermined intervals, and a chevron-shaped cutting line having a mountain shape is arranged, but the top is near the center line in the longitudinal direction of the covering sheet And the inclined lines (cut lines) on both sides constituting the angle cut line are perpendicular to the center line in the longitudinal direction of the covering sheet and pass through a vertex of the angle cut line (about 10 to 20). Incline).
That is, the included angle of the angle cut line is about 140 to 160 degrees.

しかし、これらの具体的な数値は、種々の条件により変わり得るもので一概には決め得るものではない。例えば、各年の気象条件の変動、極く短期間の気象条件の変動（例えば、芋挿しの場合でみると、芋挿しの時期や活着するまでの期間に、曇りの日が多かったか、日差しの強い日が多かったか、雨は降ったか、風がよく吹いたか、外気温が高かったか低かったか等）、圃場の局所的な条件の相違（畝の向きはどうか、土壌の水持ちが良いかどうか、日当たりはどうか、常時強い風が吹くかどうか等）、被覆シートの材質や単位面積当たりの重量、植物の生長する勢い、すなわち草勢が強いかどうか等によっても、望ましい数値は異なる。しかし、おびただしい条件に応じて数値を決めることは困難が伴うし、またおびたたしい種類の被覆シートを生産することは、現実には困難であるので、一応次のようにしている。 However, these specific numerical values can vary depending on various conditions, and cannot be determined unconditionally. For example, changes in weather conditions in each year, changes in weather conditions for a very short period of time (for example, in the case of insertion, whether there was a lot of cloudy days during the insertion period or the period until it was settled There was a lot of rainy days, it was raining, the wind was blowing well, the outside air temperature was high or low, etc.), the local conditions of the field were different (how about the direction of the drought, whether the soil water is good) Desirable numerical values also differ depending on the material of the covering sheet, the weight per unit area, the momentum of plant growth, that is, whether the grass is strong, etc. However, it is difficult to determine a numerical value according to numerous conditions, and it is actually difficult to produce a tremendous type of coated sheet.

すなわち、切込み線は中心線Ｍの垂線Ｎに対し約１０〜２０度傾斜し、かつ切込みの長さは約１７〜２７ｍｍのものを２本、その間隔を約３〜７ｍｍとする。さらに、各山形切込み線は被覆シートの長手方向に約５０〜７０ｍｍの間隔で繰り返し配置する。切込みは被覆シートの裏面まで届く深さがあり、切込みの両側は切り離されている。なお、マルチシートへの敷設に当たって、被覆シートはロール状に捲回されたものを使用する。なお、山形切込み線の頂部は、両切込み線の端部が山形状に連結される部分であるが、両切込み線が切り離されない程度に間隔を設けている。 That is, the incision line is inclined about 10 to 20 degrees with respect to the perpendicular line N of the center line M, the length of the incision is about 17 to 27 mm, and the interval is about 3 to 7 mm. Furthermore, each angle cut line is repeatedly arranged at intervals of about 50 to 70 mm in the longitudinal direction of the covering sheet. The cut has a depth that reaches the back surface of the cover sheet, and both sides of the cut are cut off. In addition, when laying on a multi-sheet, the covering sheet used is wound in a roll shape. In addition, although the top part of the angle cut line is a part by which the edge part of both score lines is connected in a mountain shape, the space | interval is provided so that both score lines may not be cut off.

マルチシートへの敷設は被覆シートの敷設具を使用して行う。敷設具（図示省略）は、畝間を走行し得る１対の車輪を有する機台上にロール状に捲回した被覆シートが捲き解し可能な状態に保持されると共に、敷設具の進行に伴って捲き解した被覆シートを、畝に植え付けられた植物を空間部を有する状態に覆い得るように、中高に案内し得るガイド部を設けると共に被覆シート両縁部の粘着部をマルチシート上に押圧して接着する押圧接着ローラーを備えるように構成されたものである。 Multi-sheet laying is performed using a covering sheet laying tool. The laying tool (not shown) is held in a state in which the covering sheet wound in a roll shape can be unwound on a machine base having a pair of wheels that can travel between the furrows, and with the progress of the laying tool In order to cover the planted sheet in a state where the plant planted in the cocoon has a space part, a guide part that can guide to the middle and high is provided and the adhesive parts at both edges of the coated sheet are pressed onto the multi-sheet. It is comprised so that the press adhesion | attachment roller which adheres and may be provided.

以下本考案の実施例を図面に基づいて詳細に説明する。
図１に示す被覆シート１０は、芋挿し後活着するまで、挿し苗を覆って保護するものであり、幅が約２６ｃｍで単位面積当たりの重量が４２ｇｒ／ｍ^２の長尺の耐水紙で敷設時までロール状に捲回されている。図１（ニ）は被覆シート１０をロール状に捲回し、かつ一部を捲き解した状態を示す。被覆シート１０は所定幅の耐水紙１２と、その両縁部に配置した細幅の粘着テープ１４、１５で構成され、敷設時にその粘着層がマルチシート上面に接着するようにされている。 Embodiments of the present invention will be described below in detail with reference to the drawings.
The covering sheet 10 shown in FIG. 1 covers and protects the inserted seedling until it is settled after being inserted, and is laid with a long waterproof paper having a width of about 26 cm and a weight per unit area of 42 gr / m ^2. It is wound in a roll until time. FIG. 1 (d) shows a state in which the covering sheet 10 is wound in a roll shape and a part thereof is unwound. The covering sheet 10 is composed of a waterproof paper 12 having a predetermined width and narrow adhesive tapes 14 and 15 disposed on both edges thereof, and the adhesive layer adheres to the upper surface of the multi-sheet when laid.

被覆シート１０には図１（イ）、（ハ）、（ニ）に示すように、所定長さの切込み１６と１７、１８と１９がそれぞれ所定間隔で線状に連結されて切込み線２０、２１をなし、かつこの２つ切込み線が山形に結合して、山形切込み線２２をなしている。すなわち、切込み線２０，２１は、山形切込み線２２を構成する傾斜した両側辺である。そして、山形切込み線２２は、その頂部Ｔが被覆シート１０の長手方向の中心線Ｍ上付近に位置すると共に、傾斜した両切込み線２０，２１は中心線Ｍに垂直で、かつ山形切込み線の頂点Ｔを通る垂線Ｎに対しそれぞれ所定の傾斜角Ｅをなしている。さらに、このように形成された山形切込み線２２が、被覆シート１０の全長にわたって中心線Ｍの方向に所定間隔Ｆを隔てて繰り返し配置されている。なお、山形切込み線の頂部は、両切込み線の端部が山形状に連結される部分であるが、両切込み線が切り離されない程度に間隔を設けている。 As shown in FIGS. 1 (a), (c), and (d), the covering sheet 10 has a predetermined length of notches 16 and 17, 18 and 19 connected to each other at a predetermined interval to form a notch line 20, 21, and these two cut lines are connected in a chevron shape to form a chevron cut line 22. That is, the cut lines 20 and 21 are the inclined both sides constituting the mountain-shaped cut line 22. The angled cut line 22 has its apex T positioned in the vicinity of the longitudinal center line M of the covering sheet 10, and the inclined both cut lines 20, 21 are perpendicular to the center line M and the angled cut line A predetermined inclination angle E is formed with respect to each perpendicular N passing through the vertex T. Furthermore, the angle-shaped cut lines 22 formed in this way are repeatedly arranged at a predetermined interval F in the direction of the center line M over the entire length of the covering sheet 10. In addition, although the top part of the angle cut line is a part by which the edge part of both score lines is connected in a mountain shape, the space | interval is provided so that both score lines may not be cut off.

本実施例では、各切込み１６、１７，１８、１９の長さＬ２、Ｌ１、Ｌ３、Ｌ４を約２２ｍｍ、切込み１６と１７，１８と１９の間隔Ｓ１、Ｓ２を約４ｍｍ、両切込み線２０，２１の前記傾斜角Ｅを約１０〜２０度、各山形切込み線２２の間隔Ｆを約５４とｍｍとした。従って、山形切込み線２２の挟角は１４０〜１６０度となる。 In this embodiment, the lengths L2, L1, L3, and L4 of each of the cuts 16, 17, 18, and 19 are about 22 mm, the intervals S1 and S2 between the cuts 16 and 17, and 18 and 19 are about 4 mm, and both the cut lines 20, The inclination angle E of 21 is about 10 to 20 degrees, and the interval F between the angled cut lines 22 is about 54 mm. Therefore, the included angle of the angled cut line 22 is 140 to 160 degrees.

マルチシートで覆われた畝に植え付けられた植物（例えばさつま芋の挿し苗）を覆うように、被覆シート１０をマルチシート上に敷設するには、被覆シート用敷設具（図示省略）を使用して行う。敷設具は、畝間を走行し得る１対の車輪を有する機台上にロール状に捲回した被覆シートが捲き解し可能な状態に保持されると共に、敷設具の進行により巻き解され、被覆シートで畝に植え付けられた植物を空間部を有する状態に覆い得るように、中高に案内し得るガイド部を設けると共に被覆シート両縁の粘着部をマルチシート上に押圧して接着する押圧接着ローラーを備えるように構成されたものである。 In order to lay the covering sheet 10 on the multi-sheet so as to cover the plant (for example, the seedlings of the sweet potatoes) planted in the multi-sheet covered cocoon, a covering sheet laying tool (not shown) is used. Do. The laying tool is unrolled by the progress of the laying tool while the covering sheet wound in a roll shape is held on a machine base having a pair of wheels that can travel between the furrows and is unwound by the progress of the laying tool. A pressure-bonding roller that provides a guide section that can guide the plant planted in a cocoon with a sheet to a state having a space section, and presses and adheres the adhesive sections on both edges of the covering sheet onto the multi-sheet. It is comprised so that it may comprise.

図２（イ）は、畝２３を覆うマルチシート２４上に被覆シート１０を敷設した状態を示す模式的な部分平面図である。特に切込み線２２は一つの直線方向ではなく、図１（イ）、（ハ）、（ニ）に示すように平面上で山形の広がりをなしているので、植物の生長時に植物の力により山形切込み線を押し破って生長を続けようとする作用は、面状に広がることになる。さらに、山形切込み線２２は被覆シート１０の長手方向に所定間隔で繰り返し、多数配置されているので、植物生長時に植物の力により山形切込み線２２を押し破って生長を続けようとする作用は、敷設された被覆シート１０の全長に渡って及ぶことになる。 FIG. 2A is a schematic partial plan view showing a state in which the covering sheet 10 is laid on the multi-sheet 24 covering the ridge 23. In particular, the cut line 22 is not in a single linear direction, but has a mountain shape on a plane as shown in FIGS. 1 (a), (c), and (d). The action of trying to continue the growth by pushing through the cutting line spreads in a planar shape. Furthermore, since the mountain-shaped cutting lines 22 are repeatedly arranged at predetermined intervals in the longitudinal direction of the covering sheet 10, the action of trying to continue the growth by pushing the mountain-shaped cutting lines 22 by the force of the plant during plant growth is It extends over the entire length of the laid covering sheet 10.

切込み線の部分は雨や風によって、部分的に開き、通風口ともなるので、風が吹いたとき適度に通風し、被覆シート内が蒸れることを防止できる。また、被覆シートとして、ポリエチレン等を含有する所定強度の耐水紙を使用するときは、シートの腰の強さが若干上昇するので、敷設後の被覆シートの形状が保持され易くなり、被覆シート内の空間部容積を大きくした状態を保持し易い。 The part of the cut line is partially opened by rain or wind, and becomes a ventilation opening. Therefore, when the wind blows, it can be ventilated moderately and the inside of the covering sheet can be prevented from being steamed. In addition, when using waterproof paper having a predetermined strength containing polyethylene or the like as the covering sheet, the strength of the sheet is slightly increased, so that the shape of the covering sheet after laying is easily maintained, It is easy to maintain a state in which the volume of the space is increased.

以上本考案の一実施例について説明したが、本考案はこのような実施例に何等限定されるものではなく、本考案の要旨を逸脱しない範囲において種々なる態様で実施し得ることはもちろんである。 Although one embodiment of the present invention has been described above, the present invention is not limited to such an embodiment, and can of course be implemented in various modes without departing from the gist of the present invention. .

本考案の被覆シートは、寒害や霜害、日差しによる被害等の防止のみなにず、発芽初期に鳥類に食害されるおそれのある作物の食害防止用被覆シートとしても利用できる。 The covering sheet of the present invention can be used not only to prevent cold damage, frost damage, sunlight damage, etc., but also as a covering sheet for preventing damage to crops that may be damaged by birds at the early stage of germination.

（イ）〜（ニ）は、本考案の実施例を示す部分表面図、図１（イ）における模式的Ａ−Ａ断面図、部分拡大説明図、説明用斜視図である。(A)-(d) is the partial surface figure which shows the Example of this invention, typical AA sectional drawing in FIG. 1 (a), partial expansion explanatory drawing, and a perspective view for description. （イ）は同実施例の使用状態を示す模式的な部分平面図、（ロ）は模式的側面図である。(A) is a typical partial top view which shows the use condition of the Example, (b) is a typical side view.

Explanation of symbols

１０被覆シート
１１空間部
１２耐水紙
１４粘着テープ
１５粘着テープ
１６切込み
１７切込み
１８切込み
１９切込み
２０切込み線
２１切込み線
２２山形切込み線
２３畝
２４マルチシート DESCRIPTION OF SYMBOLS 10 Cover sheet 11 Space part 12 Water resistant paper 14 Adhesive tape 15 Adhesive tape 16 Notch 17 Notch 18 Notch 19 Notch
20 cutting line 21 cutting line 22 Yamagata cutting line 23 ２４ 24 multi-sheet

Claims

A long covering sheet with a predetermined width that covers and lays a plant planted in a multi-sealed cocoon from above. Adhesive for adhering to the multi-sheet on both side edges A plurality of incisions having a predetermined length are connected in a line, and a mountain-shaped incision line having a mountain shape so as to have a predetermined included angle is arranged such that the top portion faces the length direction of the covering sheet itself. A covering sheet that is repeatedly arranged at predetermined intervals in a state, and that the top of the angled cut line is positioned near the center in the width direction of the covering sheet itself.

The covering sheet according to claim 1, wherein the covering sheet itself is a resin sheet or a water-resistant paper sheet, and is wound into a roll shape before use, and the edges are adhered to the multi-sheet while being unwound during use. A covering sheet that can be installed.

The covering sheet according to claim 1 or 2, wherein the covering sheet itself is a water-resistant paper sheet, the top of each chevron cut line is located near the longitudinal center line of the cover sheet itself, and the chevron cut The slanted sides formed by connecting a plurality of cuts constituting a line in a line form are inclined about 10 to 20 degrees with respect to a perpendicular line perpendicular to the longitudinal center line and passing through the top of the angled cut line, Further, two cuts having a length of about 17 to 27 mm are arranged at intervals of about 3 to 7 mm, and each angled cut line is repeatedly arranged at intervals of about 50 to 70 mm in the longitudinal direction of the covering sheet itself. Cover sheet.

The covering sheet according to any one of claims 1 to 3, wherein the covering sheet itself is made of water-resistant paper having a weight per unit area of 38 to 42 gr / m ² containing polyethylene.