JP2018064477A - Nursery stock protective covering tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nursery stock protective covering tool.SOLUTION: A nursery stock protective covering tool is comprised of a resin sheet and a support pillar, in which the resin sheet is equipped with a plurality of locking structures, which are capable of holding a cylindrical shape which is formed by curving or bending the resin sheet, on both side parts. The locking structure consists of locking parts provided for one side part of the resin sheet and parts to be locked which are provided for another side part opposing the one side part and engaged with the locking parts, and the support pillar can pass through engaged portions.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a seedling protective cover that prevents a seedling planted in a mountain forest or the like from being eaten by an animal such as a deer, a rabbit, or a mouse (animal damage) and protects the seedling until it grows to some extent.

  Conventionally, in order to prevent seedlings planted in mountain forests etc. from being eaten by animals such as deer, rabbits and mice (beast damage), until the planted seedlings grow to some extent, transparent or A method of covering and growing a translucent cylindrical seedling protective cover is employed.

As this seedling protective cover, a synthetic resin sheet is punched into a predetermined shape, and at the same time, a predetermined shape synthetic resin sheet body in which a crease line is formed is folded at the crease line forming portion, and then the predetermined portion is fixed. In addition, a seedling protective cover having a cylindrical body whose both ends have a polygonal cross section is known (see, for example, Patent Documents 1 and 2).
A seedling protective cover is also known in which a locking portion and a locked portion are arranged on both side portions of a synthetic resin sheet instead of fixing the above-mentioned predetermined location (see, for example, Patent Document 3).

Utility Model Registration No. 3074127 Utility Model Registration No. 3061868 Utility Model Registration No. 3067313

The seedling protective cover having a polygonal cross-sectional shape as described in Patent Documents 1 and 2 has the advantage of not being bulky during transportation by being folded in two along the crease line, but the crease line at the time of manufacture. In other words, it requires a lot of time because it requires a step of forming a sheet, a step of bending, and the like, and it is not suitable for mass production because it cannot be manufactured by simply punching a synthetic resin sheet. Furthermore, when installing the cover at the planting site, it is necessary to fold the sheet in the field to form a cylindrical body having a polygonal cross section, and there is a problem that it takes time and labor for that. .
On the other hand, since the seedling protective cover as described in Patent Document 3 does not adhere to both sides of the sheet, even if it is a cylindrical body having a circular cross section, it only conveys the sheet during transportation. It is not bulky, and it is not necessary to perform a process of forming a crease line or a process of bending at the time of manufacture, and it is suitable for mass production because it can be manufactured simply by punching a synthetic resin sheet. Since the cylindrical body can be formed without bending the sheet, it is excellent in that the work is easy.
However, the engagement between the locking portion and the locked portion in the seedling protective cover described in Patent Document 3 is not necessarily sufficient, and it is therefore difficult to maintain the shape of the cylinder for a long time. There was a problem that there was.
In addition, many of the seedling protective covers are provided as a seedling protective cover tool together with a support that makes the cylindrical body difficult to fall down. In order to fix the cylindrical body to the support, a separate string, binding A fixing tool such as a band and a fixing ring is required, and an operation of fixing the cylindrical body using the fixing tool is required, which causes a problem that the operation becomes complicated and expensive.

Therefore, the present invention provides a seedling protective cover comprising a resin sheet and struts, each having a locking portion and a locked portion on both sides of a synthetic resin sheet, which can solve the above-described problems. Provided is a seedling protective cover that can maintain the shape of the cylinder over a long period of time by engaging the stopper and the locked part, and does not require a fixture for fixing the cylinder to the column. Let it be an issue.

  As a result of intensive studies to solve the above-mentioned problems, the inventors of the present invention have a resin sheet provided with a plurality of locking structures each having a locking portion and a locked portion on both sides thereof, and a seedling having a support. In the protective cover, each locking structure has a structure through which the support can pass, so that the support can pass between the plurality of locking structures, so that the cylinder can be attached to the support without using a fixing tool. Each locking structure can be fixed, and it becomes difficult to come off when the support is inserted. As a result, it has been found that the shape of the cylindrical body can be maintained for a long time, and the present invention has been completed. .

That is, the present invention
[1]
A seedling protection cover device comprising a resin sheet and a support,
The resin sheet is provided with a plurality of locking structures capable of holding the shape of a cylindrical body formed by bending or bending the resin sheet on both sides,
The locking structure includes a locking portion provided on one side of the resin sheet and a locked portion that engages with the locking portion provided on the other side opposite to the locking portion. A seedling protective cover, characterized in that the strut can pass through the engaging portion,
[2]
The locking part is composed of a pair of left and right holding parts that are extended closer to each other than the edge of the notch part in the form of a notch part on both sides, while the locked part is substantially It consists of a band-shaped part formed by two parallel cuts, and the locking structure is a structure that is locked by inserting the left and right pair of restraining parts below the band-shaped part. 1] The seedling protective cover device according to 1
[3] The locking part is a belt-like part formed by two substantially parallel cuts, in which a locking restraining part that can be caught by the locked part is formed, and the locked part is A notch part that the latching restraining part can catch and a latching restraining part that can be inserted below the belt-like part, and the latching restraining part is hooked on the notch part of the latched part; The cylindrical body is locked so as to prevent the diameter of the cylinder from expanding in the circumferential direction, the locked restraining portion is inserted into the lower side of the belt-like portion, and the belt-like portion is pushed upward, When the diameter is reduced in the circumferential direction and then the diameter of the cylinder is increased again in the circumferential direction, the locking restraining portion is locked so as to be caught by the notched portion of the locked portion. Seedling protective cover,
[4] The resin sheet is further provided with a column passage portion, and the column passage portion corresponds to a circular notch portion provided on one side portion and the other side portion facing the circular notch portion. It is formed of a band-shaped portion formed by two substantially parallel cuts provided at a location, and is arranged in a straight line with the plurality of locking structures, and a space below the band-shaped portion is a passage through which the column is inserted The seedling protective cover device according to any one of [1] to [3],
[5] The seedling protective cover according to any one of [1] to [4], wherein the resin sheet is provided with an installation portion having a peg insertion hole at a lower end edge.
[6] A further support column is provided, and the resin sheet has a further support column passage portion for inserting the additional support column, and the additional support column passage portion is a center in the length direction of the resin sheet. The seedling protective cover device according to any one of [1] to [5], comprising a plurality of cuts or notches provided in a part,
About.

According to the present invention, there is provided a seedling protection cover device comprising a resin sheet and a support column in which a locking part and a locked part are arranged on both sides of a synthetic resin sheet, wherein the locking part and the locked part are A seedling protective cover that can maintain the shape of the cylinder over a long period of time by engagement and does not require a fixture for fixing the cylinder to the support is provided.
In the seedling protective cover device of the present invention, since the support is directly inserted into the cylinder formed from the resin sheet and fixed to the ground, the cylinder formed from the sheet is sufficient even when a soft sheet is used. Have good shape retention.
In addition, the seedling protection cover device of the present invention is not bulky because it only conveys the sheet and the support during transportation, and it is not necessary to perform a process of forming a crease line or a process of folding during manufacture. In addition, since it can be manufactured simply by punching out a synthetic resin sheet, it is suitable for mass production, and is excellent in terms of work efficiency and manufacturing cost.
Furthermore, since the cylindrical body can be formed without bending the sheet on site, it is also excellent in that the work is easy.

It is a figure explaining the mechanism in 1 mode (B3) of the latching mechanism in 1 aspect (A1) of a locking structure, and a support | pillar penetration part. It is a figure explaining the locking mechanism in 1 mode (A2) of a locking structure. It is a figure explaining the locking mechanism in 1 mode (A3) of a locking structure. It is a figure explaining the latching mechanism in 1 mode (A4) of a latching structure. It is a figure explaining the mechanism in 1 mode (B1) of a support post part. It is a figure explaining the mechanism in 1 mode (B2) of a support post part. It is a figure which shows the seedling protective cover tool of Example 1, 7A shows the top view of the resin sheet which comprises a seedling protective cover tool, 7B is an external view at the time of inserting a support | pillar in the resin sheet made into the shape of a cylinder Indicates. It is a figure which shows the seedling protective cover tool of Example 2, 8A shows the top view of the resin sheet which comprises a seedling protective cover tool, 8B is an external view at the time of inserting a support | pillar in the resin sheet made into the shape of a cylinder Indicates. It is a figure which shows the seedling protective cover tool of Example 3, 9A shows the top view of the resin sheet which comprises a seedling protective cover tool, 9B is an external view at the time of inserting a support | pillar in the resin sheet made into the shape of a cylinder Indicates. It is a figure which shows the seedling protective cover tool of Example 4, 10A shows the top view of the resin sheet which comprises a seedling protective cover tool, 10B is an external view at the time of inserting a support | pillar in the resin sheet made into the shape of a cylinder Indicates.

The present invention will be described in more detail.
The seedling protective cover of the present invention is
A seedling protection cover device comprising a resin sheet and a support,
The resin sheet is provided with a plurality of locking structures capable of holding the shape of a cylindrical body formed by bending or bending the resin sheet on both sides,
The locking structure includes a locking portion provided on one side of the resin sheet and a locked portion that engages with the locking portion provided on the other side opposite to the locking portion. It is a thing, Comprising: The said support | pillar can pass through an engaging part, It is characterized by the above-mentioned.

  Resin sheets that can be used in the seedling protective cover device of the present invention are synthetic resins, antistatic agents, ultraviolet absorbers, hindered amine light stabilizers, antioxidants, lubricants, antiblocking agents, inorganic fillers, colorants, etc. The synthetic resin composition obtained by adding the various additives as necessary can be obtained by punching out a synthetic resin sheet obtained by extruding from a T die of an extruder into a predetermined shape.

The synthetic resin is not particularly limited, but is preferably a biodegradable resin because it does not need to be recovered.
The biodegradable resin that can be used is not particularly limited, for example, polybutylene succinate, polybutylene succinate adipate, polylactic acid, polyethylene succinate, polypropiolactone, polybutyrolactone, polyvalerolactone, polycaprolactone, poly Biodegradable aliphatic polyesters such as hydroxybutyrate, polyhydroxyvalylate, polyhydroxybutyratevalylate, butanediol / succinic acid / caprolactone copolymer, or polybutylene adipate terephthalate, polytetramethylene adipate terephthalate, etc. Examples thereof include biodegradable aliphatic aromatic polyesters or biodegradable resins formed by combining two or more of these.

  Other synthetic resins that can be used include polypropylene (random polypropylene, block polypropylene, syndiotactic polypropylene), polyethylene (high-density polyethylene, medium-density polyethylene, low-density polyethylene), and a copolymerizable monomer with ethylene. Examples thereof include an ethylene copolymer, polyvinyl chloride, a copolymer of an olefin monomer and a vinyl chloride monomer, and a mixture thereof.

The thickness of the resin sheet that can be used in the seedling protective cover of the present invention is preferably in the range of 100 to 1000 μm.
The size (dimensions) of the resin sheet that can be used in the seedling protective cover device of the present invention can vary depending on the size of the seedling to be protected, but the height of the resin sheet is preferably in the range of 100 to 200 cm, The range of 125 to 175 cm is more preferable, and the width of the resin sheet is preferably in the range of 30 to 80 cm, and more preferably in the range of 40 to 60 cm.
Moreover, although the cross-sectional shape of the cylinder formed from a resin sheet may be circular or polygonal, it is preferable that it is circular.

The seedling protective cover of the present invention is a cylindrical body formed by bending or bending of the resin sheet provided at a position corresponding to one side of the resin sheet and the other side facing the resin sheet. A plurality of locking structures that hold the shape of
The number of locking structures that can be provided in one resin sheet is 2 to 10, preferably 2 to 6.
Each locking structure can be inserted through a support, and a single resin sheet is provided with a plurality of locking structures as described above. It is inserted into the inside of the cylinder from the provided part, inserted from the part provided with the next locking structure to the outside of the cylinder, and again from the part provided with the next locking structure to the inside of the cylinder. The column insertion passage is formed by continuously inserting the column through the inside and the outside of the cylindrical body.
Then, as described above, the struts are inserted through the inside and outside of the cylinder continuously from the portion where the locking structure is provided, so that each locking structure is difficult to come off, and a soft sheet is used as the resin sheet. Even when used, the cylinder formed from the sheet can have sufficient shape retention.

The support that can be used in the seedling protection cover device of the present invention is not particularly limited as long as it is used as a support for fixing the seedling protection cover. For example, a tree with one pointed end, bamboo, synthetic There can be mentioned columns made of resin, metal, and the like.
Further, the length is preferably longer than the height of the cylinder, and the thickness (for example, diameter) can be about 0.5 cm to 2 cm.

  The locking structure that can be used for the seedling protective cover device of the present invention is not particularly limited as long as the resin sheet can be locked by engagement and can pass through the support column. Examples include A1) to (A4).

(A1) A locking structure having a locking portion on one side of the resin sheet and a locked portion that engages with the locking portion on the other side,
The locking part is composed of a pair of left and right holding parts that are extended closer to each other than the edge of the notch part in the form of a notch part on both sides, while the locked part is substantially The locking structure is composed of a band-shaped portion formed by two parallel cuts, and the locking structure is configured to be locked by inserting the left and right pair of holding portions under the band-shaped portion.

(A2) A locking structure having a locking portion on one side of the resin sheet and a locked portion that engages with the locking portion on the other side,
The locking part is a band-shaped part formed by two substantially parallel cuts, in which a locking restraining part that can be caught by the locked part is formed, and the locked part is the locking restraining part Has a notch part that can be hooked, and a locked restraining part that can be inserted into the lower side of the belt-like part, and the latching restraining part is caught by the notch part of the latched part, whereby the cylindrical body Is locked so as to restrain the movement of the diameter of the cylinder in the circumferential direction, the locked restraining part is inserted below the band-shaped part, and the band-shaped part is pushed upward so that the cylindrical body is contracted in the circumferential direction. When the diameter of the cylindrical body is increased again in the circumferential direction, the locking structure that locks the locking restraining portion so as to be caught by the notched portion of the locked portion.

(A3) A locking structure having a locking portion on one side of the resin sheet and a locked portion that engages with the locking portion on the other side,
The locked portion is a substantially semi-circular cut, and the locked portion is formed by a cut in a shape in which holding portions are formed on both sides of a substantially semi-circle having the same size as the substantially semi-circular. A locking structure in which holding parts are formed on both sides of a circular shape, and the synthetic resin sheet body is locked by inserting the piece into the substantially semicircular cut.

(A4) A locking structure having a locking portion on one side of the resin sheet and a locked portion that engages with the locking portion on the other side,
The locked portion is a linear cut, and the locked portion is a substantially semicircular piece formed by a substantially semicircular cut, and the substantially semicircular piece is inserted into the linear cut. A locking structure that locks the synthetic resin sheet body

The locking mechanism in the modes (A1) to (A4) of the locking structure will be described with reference to the drawings.
FIG. 1 shows a locking mechanism in the mode (A1) of the locking structure.
A locking portion 1a is formed on one side of the resin sheet, and a locked portion 2a is formed on the other side of the resin sheet. Here, the locked portion 2a is substantially parallel. The locking portion 1a is extended so as to be closer to the edge of the notch 6 due to the form of the notch 6 on both sides. 2 sets of left and right pairs of holding portions 7.
Then, when the resin sheet is bent into a cylindrical shape, the two pairs of left and right pair of holding portions 7 (four holding portions 7 in total) are inserted below the belt-like portion 5, thereby Is locked.
Here, the belt-like portion 5 is firmly fixed by inserting four holding portions 7 on the lower side thereof.
Then, as shown by 1A in FIG. 1, the column 8 passes through the lower side of the belt-like portion 5 and the cutout portion 6 and is inserted into the cylinder.
In addition, although the aspect (A1) of a latching structure is demonstrated also below, it can function also as a support | pillar penetration part (aspect (B3) of a support | pillar penetration part).

FIG. 2 shows a locking mechanism in the mode (A2) of the locking structure.
A locking portion 1b is formed on one side of the resin sheet, and a locked portion 2b is formed on the other side of the resin sheet, where the locking portion 1b is locked This is a belt-like portion 12 formed by two substantially parallel cuts 10 and 11 in which a locking restraining portion 9 that can be caught by the portion 2b is formed, and the latching restraining portion 9 can be caught by the locked portion 2b. It has a notch portion 13 and a locked restraining portion 14 that can be inserted below the belt-like portion 12.
Then, when the resin sheet is bent into a cylindrical shape, when the latching restraining part 9 is hooked on the notched part 13 of the latched part, the latching restraining part 9 expands in diameter in the circumferential direction. The locked restraining portion 14 is inserted below the belt-like portion 12 and pushes the belt-like portion 12 upward to reduce the diameter of the cylinder in the circumferential direction. When the diameter is expanded again in the direction, the latching restraining portion 9 is latched so as to be caught by the notched portion 13 of the latched portion, thereby preventing the latching portion 1b and the latched portion 2b from coming off.
And the support | pillar 8 passes the lower side of the strip | belt-shaped part 12, and the notch part 13, and is penetrated in a cylinder.

FIG. 3 shows a locking mechanism in the mode (A3) of the locking structure.
A locking portion 1c is formed on one side portion of the resin sheet, and a locked portion 2c is formed on the other side portion of the resin sheet. It is a circular cut 18, and the locking part 1 c is a holding part on both sides of a substantially semicircular shape formed by a cut 16 having a shape in which a holding part 15 is formed on both sides of a substantially semicircular shape having the same size as the substantially semicircular shape. It is the piece 17 of the shape formed.
When the resin sheet is bent into a cylindrical shape, the resin sheet is inserted into the substantially semicircular cuts 18 by inserting pieces 17 having a shape in which the holding portions 15 are formed on both sides of the substantially semicircular shape. Locked.
And the support | pillar 8 passes through the lower side of the piece 17 of the shape where the control part was formed in the substantially semicircular both sides, and is penetrated in a cylinder.
In the locking structure mode (A3), the resin sheet is overlapped so that the locking portion 1c is on the locked portion 2c, and the locked portion 2c is on the locking portion 1c. There are two cases where the resin sheets are overlapped so as to be, and FIG. 3 shows that the resin sheets are overlapped so that the locked portion 2c is on the locking portion 1c. In each case, the direction of insertion of the column 8 into the cylinder is reversed.

FIG. 4 shows a locking mechanism in the mode (A4) of the locking structure.
A locking portion 1d is formed on one side of the resin sheet, and a locked portion 2d is formed on the other side of the resin sheet. Here, the locked portion 2d is linear. The locking portion 1 d is a substantially semicircular piece 21 formed by a substantially semicircular notch 20.
When the resin sheet is bent into a cylindrical shape, the synthetic resin sheet body is locked by inserting the substantially semicircular piece 21 into the linear cut 19.
And the support | pillar 8 passes the linear notch 19, and is penetrated in a cylinder.

Although the specific aspect of the locking structure is as described above, the structure (A1) or (A2) is particularly preferable.
Since the structure of (A1) is firmly locked by the two pairs of left and right pairs of holding portions, there is no possibility that the lock will be released before the support column is inserted or when the support column is inserted. There is no loss of workability.
In addition, since the structure (A2) has a function of suppressing the movement of the cylinder to expand in the circumferential direction or the movement of the cylinder to reduce the diameter in the circumferential direction and then expand the diameter again, before inserting the support column. Alternatively, the lock is not released when the support is inserted, and workability is not impaired.

In addition to the locking structure, the resin sheet used for the seedling protective cover device of the present invention can be provided with a support passage portion. The strut passage portion is arranged in line with the locking structure. Although it will not specifically limit as a support | pillar penetration part if it can pass a support | pillar, For example, the aspect of (B1) thru | or (B3) shown below can be mentioned.

(B1) A belt-like shape formed by two substantially parallel cuts provided at a corresponding portion of the circular notch provided on one side of the resin sheet and the other side facing the resin. The space below the belt-shaped portion is a column passage portion that becomes a passage through which the column is inserted.

(B2) formed by two substantially parallel cuts provided at a corresponding portion of the circular cutout portion provided on one side portion of the resin sheet and the other side portion opposed thereto, and It consists of a band-like part formed with a restraining part that can be caught in a circular notch, and the restraining part is engaged with the circular notch so as to restrain the movement of the cylinder from expanding in the circumferential direction. The space below the belt-shaped portion is a column passage portion that becomes a passage through which the column is inserted.

(B3) A band-shaped part formed by two substantially parallel cuts provided on one side of the resin sheet and a corresponding part of the other side facing the band-shaped part. It consists of a notch part provided with a holding part that can be inserted on the lower side, and the synthetic resin sheet body is locked by inserting the holding part of the locking part into the lower side of the band-like part, and the band-like part The lower space is a strut passage portion that becomes a passage through which the strut is inserted (substantially the same configuration as the locking structure mode (A1)).

The mode (B1) thru | or (B3) of the said support | pillar penetration part are demonstrated using figures.
FIG. 5 shows an aspect (B1) of the column passing portion.
A circular notch 22 is formed on one side of the resin sheet, and a strip 25 formed by two substantially parallel cuts 23 and 24 is formed on the other side of the resin sheet. .
And when curving a resin sheet and making it the shape of a cylinder, the support | pillar 8 is passed below the strip | belt-shaped part 25, and, thereby, stability of a cylinder shape can be improved.

The aspect (B2) of the said support | pillar penetration part was shown in FIG.
A circular notch 26 is formed on one side of the resin sheet, and two substantially parallel two portions are formed on the other side of the resin sheet. A holding part 29 that can be caught by the circular notch 26 is formed. A band-shaped portion 30 formed by the notches 27 and 28 is formed.
Then, when the resin sheet is bent into a cylindrical shape, the support column 8 is passed under the belt-shaped portion 30, thereby improving the stability of the cylindrical shape, and the suppressing portion. When 29 is hooked on the circular cutout portion 26, the holding portion 29 can be locked so as to stop the movement of the cylindrical body in the circumferential direction.

  As described above, the mode (B3) of the strut passing portion is substantially the same as the mode (A1) of the locking structure, and as shown by 1B in FIG. The lower side is inserted, whereby the synthetic resin sheet body can be locked and at the same time the stability of the cylindrical shape can be improved.

The resin sheet used for the seedling protective cover of the present invention is preferably provided with a vent hole.
By providing ventilation holes, the rise in temperature and humidity in the cylinder can be suppressed, and the difference from the outside temperature can be reduced, thereby reducing the number of cases where seedling growth is hindered or withered. Can be made.
The ventilation hole may be, for example, a plurality of circular or polygonal cutout portions formed in the resin sheet.

The resin sheet used for the seedling protective cover device of the present invention can be provided with an installation part having a peg insertion hole at the lower end edge of the sheet.
By pressing the lower end of the resin sheet with the peg, the cylindrical body does not rotate even when receiving wind, and therefore it is possible to prevent damage to the branches and leaves of the sapling caused by the rotation of the cylindrical body.

The seedling protection cover device of the present invention includes a mode in which a further support is provided, and the resin sheet has a further support passage part for inserting the further support.
The further strut passage portion may be a plurality of cuts or notches provided in the central portion in the length direction of the resin sheet, through which the strut can be inserted.
Using a plurality of struts ensures that the cylinder is fixed to the ground, so that the cylinder does not rotate even when receiving wind, and can prevent damage to the seedling branches and leaves caused by the rotation of the cylinder. it can.

The resin sheet used for the seedling protective cover device of the present invention is a synthetic resin, an antistatic agent, an ultraviolet absorber, a hindered amine light stabilizer, an antioxidant, a lubricant, an antiblocking agent, an inorganic filler, a colorant and the like. Synthetic resin sheet obtained by extruding a synthetic resin composition obtained by adding additives as necessary from a T die of an extruder, the above-described locking structure (plural), arbitrary strut passage portion It can be manufactured by punching into a predetermined shape provided with an optional ventilation hole, an optional installation part, an additional column passage part for inserting an arbitrary additional column.
Moreover, when the cross-sectional shape of the cylinder formed from a resin sheet becomes a polygon, it is achieved by forming a crease line on the sheet having a predetermined shape manufactured as described above.

  On-site installation of the seedling protective cover device of the present invention is to form a cylindrical body having a circular cross-sectional shape by bending the sheet of the predetermined shape manufactured above, or to be bent at a crease line to obtain a cross-sectional shape. Form a polygonal cylinder, lock the sheet with a plurality of locking structures and place it on the seedlings, and insert the struts through the supporting struts and, if present, the struts, and fix them to the ground In addition, when there is a further support passage portion for inserting a further support column, by inserting the additional support column into the support passage portion, and when there is an installation portion, a peg insertion hole This is accomplished by inserting a peg into the ground and securing it to the ground.

EXAMPLES Next, although an Example demonstrates this invention still in detail, this invention is not limited to an Example.
Example 1
The synthetic resin sheet has a predetermined shape shown in FIG. 7A, that is, a height of 150 cm provided with a mounting portion 32 (a piece having a width of 6 cm provided with a peg insertion hole 33 having a diameter of 1 cm and a height of 3 cm). , A sheet having a width of 50 cm, on one side of the sheet and on the other side facing the sheet, a mode of the locking structure (A1), a mode of the locking structure (A3), a mode of the column passage (B3: Mode of locking structure (A1)), mode of locking structure (A3), and mode of locking structure (A1) are provided in this order, and 42 vent holes 31 having a diameter of 1.5 cm are 3 The resin sheet in the seedling protective cover of Example 1 was manufactured by punching into sheets of a predetermined shape provided in rows (14 per row).

  The seedling protective cover device of Example 1 provided with the resin sheet and the column manufactured as described above was installed as shown in 7B of FIG. That is, the resin sheet manufactured as described above is bent and is engaged in a plurality of locking structures (two locations (A1), two locations (A3)) and a column passing portion mode (B3: mode of locking structure (A1)). To form a cylindrical body having a circular cross-sectional shape. A1)), the locking structure mode (A3) and the locking structure mode (A1) are inserted in order and fixed to the ground, and for reinforcement, the pegs are inserted into the peg insertion holes 33 of the installation portion 32. Inserted and fixed to the ground.

Example 2
The synthetic resin sheet has a predetermined shape shown in FIG. 8A, that is, a height of 150 cm provided with an installation portion 32 (a piece having a width of 6 cm provided with a peg insertion hole 33 having a diameter of 1 cm and a height of 3 cm). , A sheet having a width of 50 cm, on one side of the sheet and on the other side facing the sheet, a locking structure mode (A2), a locking structure mode (A3), The mode (B2), the mode of the locking structure (A3), and the mode of the locking structure (A2) are provided in this order, and 28 rows of vent holes 31 having a diameter of 1.5 cm are arranged in two rows (14 per row). The resin sheet in the seedling protective cover device of Example 2 was manufactured by punching out into a sheet having a predetermined shape provided in step S2.

  The seedling protective cover device of Example 2 provided with the resin sheet and the column manufactured as described above was installed as shown in 8B of FIG. In other words, the resin sheet produced above is bent and locked with a plurality of locking structures (two locations (A2), two locations (A3)) and the holding portion of the column passage portion (B2) to obtain a cross-sectional shape. A circular cylinder is formed, and the support column 8 is fixed to the locking structure mode (A2), the locking structure mode (A3), the column passing portion mode (B2), the locking structure mode (A3), and the locking structure. The structure was inserted in the order of the structural mode (A2) and fixed to the ground. Further, for reinforcement, a peg was inserted into the peg insertion hole 33 of the installation portion 32 and fixed to the ground.

Example 3
The synthetic resin sheet has a predetermined shape shown by 9A in FIG. 9, that is, a height of 150 cm provided with an installation portion 32 (a piece having a width of 6 cm provided with a peg insertion hole 33 having a diameter of 1 cm and a height of 3 cm). , A sheet having a width of 50 cm, on one side of the sheet and on the other side opposite to the sheet, a locking structure mode (A3), a locking structure mode (A3), The mode (B1), the mode of the locking structure (A3), and the mode of the locking structure (A3) are provided in this order, and there are two rows of 28 vent holes 31 having a diameter of 1.5 cm (14 per row). The resin sheet in the seedling protective cover device of Example 3 was manufactured by punching out into a sheet having a predetermined shape provided in Step 3.

  The seedling protective cover device of Example 3 provided with the resin sheet and the column manufactured as described above was installed as shown in 9B of FIG. That is, the resin sheet manufactured as described above is bent and locked by a plurality of locking structures (four locations (A3)) to form a cylindrical body having a circular cross section. A3), the locking structure mode (A3), the column passing portion mode (B1), the locking structure mode (A3) and the locking structure mode (A3) are inserted in this order and fixed to the ground. For reinforcement, a peg was inserted into the peg insertion hole 33 of the installation part 32 and fixed to the ground.

Example 4
The synthetic resin sheet is a sheet having a predetermined shape shown in FIG. 10A, that is, a height of 150 cm and a width of 50 cm, on one side of the sheet and the other side facing the sheet. A lock structure mode (A4), a lock structure mode (A4), a lock structure mode (A4), and a lock structure mode (A4) are provided in this order. A resin sheet in the seedling protective cover of Example 4 was manufactured by punching into a sheet having a predetermined shape in which the ventilation holes 31 were provided in two rows (14 per row).

  The seedling protective cover device of Example 4 provided with the resin sheet and the column manufactured as described above was installed as shown in FIG. 10B. That is, the resin sheet manufactured as described above is bent and locked by a plurality of locking structures (four locations (A4)) to form a cylindrical body having a circular cross section. A4), Locking Structure Mode (A4) Locking Structure Mode (A4) and Locking Structure Mode (A4) were inserted in this order and fixed to the ground.

1a, 1b, 1c, 1d: locking part, 2a, 2b, 2c, 2d: locked part, 3, 4: notch, 5: strip-shaped part, 6: notch part, 7: restraining part, 8: support , 9: Locking restraining part, 10, 11
: Notch, 12: belt-like part, 13: notch part, 14: locked restraining part, 15: restraining part, 16: notch, 17: piece of a shape in which restraining parts are formed on both sides of a substantially semicircular shape, 18 : Substantially semicircular cut, 19: linear cut, 20: substantially semicircular cut, 21: substantially semicircular piece, 22: circular notch, 23, 24: cut, 25: strip, 26 : Circular notch, 27, 28: notch, 29: restraining part, 30: belt-like part, 31: ventilation hole, 32: installation part, 33: peg insertion hole

Claims (6)

A seedling protection cover device comprising a resin sheet and a support,
The resin sheet is provided with a plurality of locking structures capable of holding the shape of a cylindrical body formed by bending or bending the resin sheet on both sides,
The locking structure includes a locking portion provided on one side of the resin sheet and a locked portion that engages with the locking portion provided on the other side opposite to the locking portion. A seedling protective cover, characterized in that the strut can pass through the engaging portion.   The locking part is composed of a pair of left and right holding parts that are extended closer to each other than the edge of the notch part in the form of a notch part on both sides, while the locked part is substantially It consists of a strip-shaped portion formed by two parallel cuts, and the locking structure is configured to be locked by inserting the left and right pair of holding portions under the strip-shaped portion. The seedling protective cover device according to 1.   The locking portion is a band-shaped portion formed by two substantially parallel cuts, in which a locking restraining portion that can be caught by the locked portion is formed, and the locked portion is the locking restraint. A notch portion that can be hooked to the portion, and a locked restraining portion that can be inserted into the lower side of the belt-like portion, and the latch restraining portion is hooked on the notched portion of the to-be-latched portion, thereby The body is locked so as to stop the movement of the diameter of the body in the circumferential direction, the locked restraining part is inserted below the band-shaped part, and the band-shaped part is pushed upward so that the cylindrical body is circumferentially moved. The seedling protective cover device according to claim 1, wherein when the diameter of the cylinder body is reduced and then the diameter of the cylinder body is expanded again in the circumferential direction, the locking restraining portion is locked so as to be caught by the notched portion of the locked portion. .   The resin sheet is further provided with a column passage portion, and the column passage portion is provided at a corresponding portion of the circular notch portion provided on one side portion and the other side portion facing the circular notch portion. The belt-shaped portion is formed by two substantially parallel cuts, and is arranged in a straight line with the plurality of locking structures, and a space below the belt-shaped portion serves as a passage through which the column is inserted. The seedling protective cover device according to any one of claims 1 to 3.   The seedling protective cover device according to any one of claims 1 to 4, wherein the resin sheet is provided with an installation portion having a peg insertion hole at a lower end edge.   Further, the resin sheet has a further strut passage portion for inserting the further strut, and the further strut passage portion is provided at a central portion in the longitudinal direction of the resin sheet. The seedling protective cover device according to any one of claims 1 to 5, comprising a plurality of cuts or cutouts.

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