JPH0889103A - Method and apparatus for applying cover sheet to cultivated plant - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a method and an apparatus for stretching a covering sheet for protection against cold and frost without affecting cultivated plants. [Structure] A cover sheet formed by arranging an adhesive layer (10) along both side edges when a cover sheet (6) is stretched over a cultivated plant planted in a ridge whose surface is covered with a multi-sheet
The apparent width dimension of the covering sheet (6) is reduced by pushing in the widthwise central portion of the covering portion while supporting both side edge portions, and the covering sheet (6) having this reduced width dimension is used as the traveling carriage. It is wound around the front wheel (3) of the above and inverted to be adhered to the multi-sheet stretched on the ridge surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a covering sheet tensioning method and a tensioning method for stretching a covering sheet for cold and frost prevention on the upper side of a plant which is cultivated in an open field with a mulch sheet installed on a ridge. Regarding the ingredients.

[0002]

2. Description of the Related Art Conventionally, when a cover sheet for cold and frost protection is stretched on a cultivated plant which is planted in a ridge having an upper surface covered with a multi-sheet and is cultivated in the open field, conventionally, both widthwise end portions are box folds. A synthetic resin film sheet is used in which the width dimension is reduced by folding the sheet into a shape and an adhesive layer is formed at the widthwise side end portion along the longitudinal direction.

[0003]

However, in the conventional technique which uses a film sheet in which both end portions are folded in the shape of a box fold, a pressing force is applied to the adhesive layer from above when adhesively fixing the multi-sheet. When applied, it will press the part that overlaps the upper side of the adhesive layer,
The entire film sheet comes into close contact with the entire upper surface of the ridge, and the cultivated plant is pressed against the cultivated plant. In addition, since the film sheet itself has a habit of being folded, there is a problem that the film sheet or the resistance when it grows grows when the cultivated plant grows. It is an object of the present invention to provide a method and an apparatus for stretching a covering sheet for cold and frost prevention without affecting the cultivated plant, focusing on such a point.

[0004]

In order to achieve the above object, the first aspect of the present invention is to press the center portion in the width direction of a covering sheet having adhesive layers arranged along the longitudinal direction at both ears, The width dimension of the covering sheet is reduced, and the covering sheet having the reduced width dimension is inverted and adhered to the multi-sheet stretched on the ridge surface, and the second invention is the ridge. The roll of the covering sheet is rotatably supported by a handcart having front and rear wheels formed with a width equal to that of the upper surface of the multi-seat upper surface by reversing the covering sheet along the peripheral surface of the front wheel. A pair of front and rear seat supports that are configured to abut each other and that regulate the width direction of the cover sheet are arranged between the support portion of the cover sheet and the front wheel. Regulation range The width is set narrower than the regulation width of the side sheet support, and a pressing tool for pressing the central portion in the width direction of the cover sheet from above is arranged between the front and rear sheet supports, and both side ears of the cover sheet along the longitudinal direction. It is characterized in that an adhesive layer is formed and both side ears of the cover sheet are pressed by front and rear wheels as the vehicle travels so that the cover sheet is adhered to the multi-sheet.

[0005]

In the present invention, the width dimension of the cover sheet is reduced by pushing in the center portion in the width direction of the cover sheet, and the reduced cover sheet is inverted so that the side edge portion of the cover sheet is provided on the upper surface of the multi-sheet. Since they are adhered, it is possible to stretch the cover sheet without pressing down the cultivated plant. In addition, the tensioning tool should be narrowed in the width direction central portion of the covering sheet roll by only slightly pushing it in, and the drawn covering sheet should be wound around the moving wheel and inverted. Therefore, the adhesive layer of the covering sheet can be pressed firmly against the multi-sheet with a simple structure.

Further, according to the present invention, since the width of the covering sheet formed into a roll is narrowed in the middle of the drawing path, the covering sheet is wound so that the adhesive surface of the adhesive layer is on the inside. As a result, it is possible to form a roll body, which is easier and easier than a roll body that is formed while forming a box fold.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show an embodiment of the present invention, FIG. 1 is a perspective view of a covering sheet tensioning tool, and FIG. 2 is a perspective view showing a state in which a sheet is pulled out. This cover sheet tensioning tool is based on a four-wheel type wheelbarrow in which a handle (2) is arranged at the rear end of a four-wheeled trolley (1) in which a pair of left and right wheels are arranged in front and rear, and the front and rear wheels (3 (4) The dimension between the left and right wheels in (4) is formed to be substantially equal to the upper surface width dimension of the ridge.

A sheet roll supporting portion (5) is provided at the rear of the carriage (1).
The sheet roll supporting portion (5) rotatably supports the roll body of the synthetic resin film covering sheet (6) for preventing cold or frost. Then, the left and right side edge portions of the covering sheet (6) pulled out from the roll body supported by the sheet roll supporting portion (5) are respectively wound around the peripheral surface of the front wheel (3) and inverted.

From the seat roll support (5) to the front wheel (3)
Trolley in a state corresponding to the covering sheet pull-out route up to
Guide support tools (7) and (8) for restricting the position of the side end portion of the covering sheet (6) in the width direction from (1) are vertically arranged in front and rear. The front and rear guide supports (7) and (8) are formed in a pair of left and right with rods, respectively, and the front guide support (7) located on the front wheel (3) side is configured to be adjustable in the left-right space. There is.
The width of the front guide support member (7) in the width direction is restricted by the rear guide support member (8) located on the sheet roll support portion (5) side.
It is formed to be narrower than the regulation width in the width direction.

Further, a pressing member (9) for pressing down the widthwise central portion of the pulled-out cover sheet (6) between the front and rear guide supporting members (7) and (8) is provided from the front end portion of the carriage (1). It is arranged consecutively. Therefore, by pressing the central portion in the width direction of the covering sheet (6) from above with the pressing tool (9) while it is being pulled out, both end portions are brought closer and the apparent width dimension is reduced. become. Then, with the apparent width dimension reduced, the cover sheet (6) is attached to the front wheel.
Cover sheet (6) by wrapping around (3) and inverting
The front and rear wheels (3) and (4) press the side edge portions of the.

The covering sheet (6) is made of high-density polyethylene to which an additive for enhancing the orientation of molecules is added so that it can be easily torn in the longitudinal direction. In addition, an adhesive layer (10) having a constant width is formed along the longitudinal direction at the side edge portion of the cover sheet (6), and the adhesive layer (10) is positioned inside The coated sheet (6) is wound into a roll body.

Next, using the above-mentioned sheet tensioning tool,
The case where the upper side of the cultivated plant (P) planted in the ridge (R) whose upper surface is covered with the multi-sheet (M) is covered with the covering sheet (6) will be described. The ridges are provided on the seat roll support portion (5) of the carriage (1).
The roll body of the covering sheet (6) wider than the upper surface width of (R) is rotatably supported, and both end portions of the covering sheet (6) pulled out from the roll body are in front of the carriage (1). Wrap it around the left and right wheels (3) located around the surface,
By pressing the adhesive layers (10) arranged along both side edge portions of the cover sheet (6) from above with the front and rear wheels (3) and (4) by traveling of the cart, the cover sheet (6) is removed. Adhesively fixed to the multi-sheet (M) on the upper surface of the ridge (R).

The covering sheet (6) is a sheet roll supporting portion (5).
From the top to the front wheel (3), the central part of the front wheel (3) is pressed by the pressing tool (9), so that both side edges approach each other, and the front wheel (3) is slackened in the central part. Since it will be wrapped, after covering, cover sheet
(6) is a multi-seat with no tension in the width direction
(M) will be stuck and fixed in the state where the central part is inflated. Therefore, the cultivated plant is not pressed down from above, and the growth of the cultivated plant is not adversely affected.

[0014]

INDUSTRIAL APPLICABILITY The present invention reduces the apparent width dimension of the covering sheet by pushing in the center portion in the width direction of the covering sheet, and reverses the covering sheet having the reduced width dimension to the upper surface of the multi-sheet. Since the side edges are adhered, it is possible to stretch the covering sheet in a state where tension in the width direction does not act on the covering sheet when stretching, and to stretch the covering sheet without pressing down the cultivated plant. You can In addition, the tensioning tool should be narrowed in the width direction central portion of the covering sheet roll by only slightly pushing it in, and the drawn covering sheet should be wound around the moving wheel and inverted. Therefore, the adhesive layer of the covering sheet can be pressed firmly against the multi-sheet with a simple structure.

Further, according to the present invention, since the width of the cover sheet formed into a roll shape is narrowed in the middle of the drawing path, the cover sheet is wound so that the adhesive surface of the adhesive layer is on the inside. As a result, a roll body can be formed, which is simpler and easier than a roll body that is formed while forming a box fold.

[Brief description of drawings]

FIG. 1 is a perspective view of a covering sheet tensioning tool.

FIG. 2 is a perspective view showing a pulled-out state of a sheet.

[Explanation of symbols]

3 ... Front wheels, 4 ... Rear wheels, 5 ... Cover sheet support,
6 ... Covering sheet, 7 ... Front side sheet support tool 8 ... Rear side sheet support tool, 9 ... Presser tool, 10 ... Adhesive layer.

Claims (2)

[Claims] 1. A tensioning method for tensioning a covering sheet (6) above a cultivated plant planted in a ridge whose surface is covered with a multi-sheet, wherein an adhesive layer is provided on both ears along the longitudinal direction. The width dimension of the covering sheet (6) in which the width (10) is arranged is pushed in to reduce the width dimension of the covering sheet (6), and the covering sheet (6) having the reduced width dimension is reversed to form the ridge surface. A method for tensioning a covering sheet on a cultivated plant so that it is adhered to a multi-sheet stretched on the floor. 2. A tensioning tool for stretching a covering sheet (6) above a cultivated plant planted in a ridge having the surface of the ridge covered with a multi-sheet, the spacing being equal to the width of the upper surface of the ridge. Formed front and rear wheels (3)
The roll of the covering sheet (6) is rotatably supported by a handcart having (4), and the covering sheet (6) is supported by the front wheel.
The cover sheet (6) is configured to be turned around along the peripheral surface of (3) so as to abut against the upper surface of the multi-seat, and between the support portion (5) of the cover sheet (6) and the front wheel (3). A pair of front and rear seat supports (7) and (8) that restrict the width direction of the front seat support device (7) (8) are arranged. A pressing tool that is set narrower than the regulation width of the tool (8) and presses the central portion of the covering sheet (6) in the width direction between the front and rear sheet support tools (7) and (8) from above.
(9) is arranged, the adhesive layer (10) is formed on both side ears of the covering sheet (6) along the longitudinal direction, and the front and rear wheels ( 3) A covering sheet tensioning device for a cultivated plant, which is adhered to a multi-sheet by pressing it in (4).