Laying tool of mulching sheet or the like

Abstract

To provide a laying tool of a mulching sheet or the like which is adaptable to a roll-type sheet of various widths.SOLUTION: A tool 1 for laying roll-type sheet consists of a string-like member 2 and a pair of metal members 3 which can be connected to the string-like member 2, where the metal member 3 consists of an insertion member 31 which is capable of being inserted into a lumen of a roll, and a connecting member 32 which approximately vertically connects to the insertion member 31, and is constituted by allowing the connecting member 32 to equip with the string-like member 2.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a laying tool for mulch sheets, etc. More specifically, the present invention relates to a laying tool that can easily lay roll-type sheets such as mulch sheets and weed control sheets. [Background technology]

[0002] A film-like sheet called a mulch sheet is laid on the ridges of fields. This prevents the soil from drying out and makes it easier for the temperature inside the film to rise, promoting the growth of vegetables. It also has the effect of preventing weeds from growing in the ridges by preventing weeds from entering from outside the plastic film. As such, laying mulch sheets has many advantages.

[0003] On the other hand, laying mulch sheets can be said to be a time-consuming task. In other words, because mulch sheets are relatively wide, if a single person holds both ends of the roll to lay it down, they will end up in an awkward position, and it is difficult to maintain balance and lay the mulch sheet neatly (in a straight line) along the ridges. Due to these circumstances, technology has been disclosed that allows one person to easily lay down multi-sheets (Patent Documents 1, 2, and 3). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2003-180174 A [Patent Document 2] Publication No. 3156175 [Patent Document 3] JP 2000-139243 A DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0005] Patent Document 1 discloses an agricultural tool for laying mulch sheets. This technology is useful in that it enables the laying of mulch sheets by inserting an expandable rod-shaped member into a roll, fixing both ends, and pulling the sheet with a string. However, since there is a limit to how much the length of the rod-shaped member can be adjusted, there is a problem in that it cannot accommodate all multi-sheets with a variety of widths.

[0006] Patent Document 2 discloses a multi-sheet installation support tool. This technology is useful in that it uses connecting members that fit and secure both ends of a roll, inserts a string into the inside of the roll to secure it, and enables the installation of a multi-sheet by pulling the string. However, since a connecting member that can be fitted and fixed into the roll cavity is required, there is a problem in that it cannot be used for all multi-sheets of various sizes. Another problem is that the preparation before starting use is relatively cumbersome.

[0007] Patent Document 3 discloses a laying tool for laying a film-like sheet. This technology is useful in that it is a T-shaped member, and the members provided on both ends of the T are inserted and fixed into the inner cavity of a roll, and the multi-sheet can be laid by pulling the gripping parts. However, there is a problem in that there is a limit or restriction on adjusting the width of the T-shaped portion, and it cannot fully accommodate multi-sheets with various widths. Another problem is that the structure of the jig is relatively complicated, which increases the manufacturing cost.

[0008] As seen in these prior arts, the conventional multi-sheet laying technology had a structure for inserting some kind of member into the inner cavity of the roll of the multi-sheet while taking measures to prevent it from coming off. This measure to prevent it from coming off not only made the structure of the technology itself complicated, but also placed limitations on its compatibility with the width of the multi-sheet and the thickness of the roll.

[0009] In light of the above circumstances, the present invention aims to provide a new concept in laying equipment for multi-sheets, etc., which can accommodate a wide range of multi-sheet widths and roll thicknesses. [Means for solving the problem]

[0010] As a result of extensive research, the inventor came up with the idea of ​​an installation device that inserts a member having a predetermined shape into both ends of a roll of multi-sheet and pulls it without fixing it, thereby making it possible to hold the member within the roll cavity and rotate the roll, and thus completed the invention.

[0011] The present invention comprises the following configuration. [1] A string-like member, A roll-type sheet laying device consisting of a pair of metal members connectable to a string-like member, Metallic parts are A penetrating member that can be inserted into the inner cavity of the roll, A connecting member that is connected to the insertion member approximately vertically; It consists of, A roll-type sheet laying device characterized in that a connecting member is provided with a string-like member. [2] The connecting member comprises a first connecting portion and a second connecting portion, The first connecting portion is connected to the insertion member substantially vertically, The second connecting portion is connected to the first connecting portion approximately vertically and has a string-shaped member at its end, according to the roll-type sheet laying device described in [1]. [3] A roll-type sheet laying device as described in [1] or [2], wherein any one or more of the insertion member, the first connecting part, and the second connecting part are rod-shaped. [4] A roll-type sheet laying device as described in [1], wherein the insertion member is longer than the diameter of the inner cavity of the roll-type sheet and has a length that is 10% to 40% of the width of the roll-type sheet. [5] A roll-type sheet laying device as described in [1], wherein the insertion member is configured to be 10 cm to 50 cm long. [6] A roll-type sheet laying device as described in [2], wherein the first connecting portion is configured to be 10 to 50 cm long. [7] A roll-type sheet laying device as described in [2], wherein the second connecting portion is configured to be 10 to 40 cm long and shorter than the length of the insertion member. [8] A roll-type sheet laying device described in any one of [1] to [7], which is used for agricultural mulch sheets and weed control sheets. [9] Used for a roll-type sheet laying device according to any one of [1] to [7], A metal member having an insertion member that can be inserted into the inner cavity of the roll, and a connecting member that connects to the insertion member approximately vertically. Effect of the Invention

[0012] The present invention makes it possible to provide a new concept in laying equipment for multi-sheets, etc., which can accommodate a wide range of multi-sheet widths and roll thicknesses. [Brief description of the drawings]

[0013] [Figure 1] FIG. 13 is a diagram showing an example of a roll-type sheet laying device. [Diagram 2] FIG. 13 is a diagram showing an example of a roll-type sheet laying device. [Diagram 3] A diagram showing the roll-type sheet laying device in use. [Figure 4] A diagram explaining the relationship between the roll-type sheet laying tool and the roll-type sheet when using the roll-type sheet laying tool. In the diagram, x indicates the point where the corner of the metal part (connecting part) and the corner of the roll cavity are in contact, and y indicates the point where the tip of the insertion part is in contact with the roll cavity. [Diagram 5] A diagram explaining the relationship between the roll-type sheet laying tool and the roll-type sheet when using the roll-type sheet laying tool. The diagram shows the direction of force when using the roll-type sheet laying tool, with a showing the direction of force acting on the string-like member, b showing the direction of force acting on the connecting part or the roll inner cavity angle, and c showing the direction of force acting on the tip of the insertion member. [Figure 6] A diagram showing the entire prototype. As shown in the figure, the prototype is composed of a pair of metal members and a string-like member (nylon string) connected to them. [Figure 7] A diagram showing the prototype example when it is carried around. By wrapping the string-like member around the metal member, it becomes very compact, making it easy to carry and store. [Figure 8] A diagram showing the prototype being held. It can be easily held in one hand and can be easily handled by a single worker in a field, etc. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] The roll-type sheet laying device of the present invention is a roll-type sheet laying device consisting of a string-like member and a pair of metal members that can be connected to the string-like member, and is characterized in that the metal members consist of an insertion member that can be inserted into the inner cavity of the roll and a connecting member that is connected approximately vertically to the insertion member, and the connecting member is provided with a string-like member. As a result, the sheet can be laid simply by inserting the insertion members in the metal members into the inner cavities at both ends of the roll-type sheet and pulling the string-like member. Furthermore, since the roll-type sheet laying tool of the present invention does not require the insertion members to be fixed to the roll when in use, it can be used with roll-type sheets of various widths. In addition, since it can accommodate roll thicknesses up to the width of the length of the connecting member, it can accommodate a relatively wide range of roll-type sheets. Furthermore, since the roll-type sheet laying tool of the present invention has a simple configuration consisting of a pair of metal members and a string-like member, it can be manufactured relatively inexpensively, is easy to repair and maintain, and is easy to carry and store.

[0015] The roll-type sheet laying device of the present invention was invented based on the following principles. (1) The tip of the insertion member comes into contact with the roll cavity (part y in Fig. 4) and acts to push the roll cavity in the opposite direction (direction c in Fig. 5) to the traveling direction (pulling direction, traveling direction in Fig. 4). In addition, since the insertion member has a certain length, this pushing action functions as a force that makes it difficult for the metal member to come out of the roll cavity. (2) The connection part between the insertion member and the connecting member comes into contact with the roll bore angle (part x in Figure 4), and is pulled toward the center of the roll (direction b in Figure 5) by the pulling force of the string-like member, so that the connection part becomes caught in the roll bore angle. (3) As a result, the roll is pulled in the direction of travel while being sandwiched between the metal members on both sides. These actions allow the roll to rotate and lay the sheet without the metal members coming out of the roll. In this sense, the roll-type sheet laying device of the present invention inserts a pair of metal members into the inner cavities at both ends of the roll-type sheet while pulling the string-like member, so that the tip of the inserting member comes into contact with the inner cavity of the roll and the connection part between the inserting member and the connecting member comes into contact with and gets caught on the corner of the inner cavity of the roll, thereby rotating the roll-type sheet without the metal members coming out of the roll and enabling the sheet to be laid.

[0016] In the present invention, the string-like member is configured as at least one string-like member, both ends of which are connected to connecting members of a pair of metal members (for example, FIG. 1, etc.). The string-like member also functions as a member that the user holds in his / her hand and pulls. There is no need to limit the string-like member in particular as long as it has such a configuration and function, and various types can be used. As the string-like member, typically, a string as shown in Fig. 1 or Fig. 6 may be used. The string may be configured as a single string as in Fig. 1, or may be configured as a string that is layered in multiple layers, such as double or triple layers. The material of the string-like member does not need to be particularly limited, and various materials may be used. For example, cotton, nylon, polyester, hemp, rubber, synthetic fiber, chain, etc. may be used as the material of the string-like member. It is preferable to use nylon, polyester, or synthetic fiber as the string-like member. This improves the durability of the roll-type sheet laying tool used in a relatively harsh environment, and also makes it possible to easily wash the string-like member, which has the effect of improving the usefulness of the roll-type sheet laying tool of the present invention.

[0017] In the present invention, the metal member is configured as a member that is inserted into the inner cavity of the roll and has a connecting portion with the string-like member. Therefore, the metal member is essentially configured with an insertion member and a connecting member. The metal members are preferably painted to prevent rust, which has the effect of improving the durability of the roll-type sheet laying device of the present invention.

[0018] The connecting portion of the metal member with the string-like member does not need to be particularly limited as long as the metal member and the string-like member can be connected, and various configurations can be used. The connecting portion is typically a connecting ring (FIG. 1, 33) to which a string-like member can be tied.

[0019] In the present invention, the insertion member is inserted into the inner cavity of the roll in the roll-type sheet, and when the string-shaped member is pulled, its tip comes into contact with the inner cavity, thereby preventing the metal member from coming out of the roll. Therefore, the insertion member must be wide enough to be inserted into the roll cavity and long enough for the diameter of the cavity. In addition, the tip of the insertion member must be wide enough not to have a contact area large enough to impede the rotation of the roll when it comes into contact with the roll cavity.

[0020] The length of the inserting member can typically be 5% to 45%, preferably 10 to 45%, more preferably 10 to 40%, particularly preferably 15 to 40%, and most preferably 15 to 35% of the length of the roll. Furthermore, the length of such an insertion member may be, for example, 5 to 50 cm, preferably 10 to 50 cm, more preferably 15 to 50 cm, particularly preferably 15 to 45 cm, and most preferably 15 to 40 cm.

[0021] The width (thickness, diameter) of the insertion member is typically 5 to 30 mm, preferably 5 to 25 mm, more preferably 5 to 20 mm, particularly preferably 5 to 15 mm, and most preferably 5 to 13 mm.

[0022] In the present invention, the connecting member connects to the insertion member approximately vertically and provides a certain degree of width (length) between the string-like member and the roll bore angle, making the roll easier to rotate and serving as a play to accommodate the roll thickness. The connecting member does not need to be particularly limited as long as it fulfills such a role, and can be of various shapes or configurations. Incidentally, "approximately perpendicular to the insertion member" is defined as an angle perpendicular to the insertion member or close to it. An angle close to it is defined as an angle that has a certain degree of width and does not hinder the rotation of the roll. An example of a close angle is, for example, within 30 degrees from the vertical (90 degrees ±30 degrees from the insertion member), more preferably within 25 degrees from the vertical (90 degrees ±25 degrees), even more preferably within 20 degrees from the vertical (90 degrees ±20 degrees), and most preferably within 15 degrees from the vertical (90 degrees ±15 degrees). In particular, since it is necessary for the connecting member to contact the corners of the roll cavity without hindering the rotation of the roll, when it has a certain degree of angular width, it is preferable for it to be configured so that the angular width is on the outside of the roll (the opposite side to the insertion member).

[0023] In the present invention, the connecting member comprises a first connecting portion and a second connecting portion, the first connecting portion being connected approximately vertically to the insertion member, and the second connecting portion being connected approximately vertically to the first connecting portion and having a string-like member at its end, preferably. This makes it easy to set the installation position of the string-like member in the connecting member (the connection position with the string-like member) closer to the center of the roll-type sheet. In other words, this configuration makes it harder for the insertion member to come out of the roll, and makes it easier to configure the roll to rotate stably. In addition, "approximately perpendicular to the first connecting part" is defined as an angle perpendicular to the first connecting part or close to it. An angle close to it is defined as an angle having a certain width, where the end of the second connecting part does not come into contact with the roll and does not hinder the rotation of the roll. An example of a close angle is, for example, within 40 degrees from the vertical (90 to ±40 degrees from the first connecting part), more preferably within 35 degrees from the vertical (90 to ±35 degrees), even more preferably within 30 degrees from the vertical (90 to ±30 degrees), and most preferably within 25 degrees from the vertical (90 to ±25 degrees).

[0024] The first connecting portion may be longer than the roll thickness of the roll-type sheet and not too long relative to the insertion member. The length of the first connecting portion may be typically 5 to 50 cm, preferably 10 to 50 cm, more preferably 10 to 45 cm, even more preferably 10 to 40 cm, particularly preferably 10 to 35 cm, and most preferably 10 to 30 cm.

[0025] The second connecting portion may be of a length shorter than the insertion member, typically from 5 to 40 cm, preferably from 5 to 40 cm, more preferably from 5 to 35 cm, particularly preferably from 5 to 30 cm, and most preferably from 5 to 25 cm. In such a case, it is preferable that the second connecting part has a connecting ring at its end (the side opposite to the one connected to the first connecting part). This makes it easy to set the end of the second connecting part near the center of the insertion member (at a position 40 to 60% of the length of the insertion member), making it easier to design the roll-type sheet laying device of the present invention.

[0026] In the present invention, it is preferable that any one or more of the insertion member, the first connecting part, and the second connecting part are rod-shaped, which makes it easier to manufacture the metal member and has the effect of improving the economic efficiency of the roll-type sheet laying device of the present invention.

[0027] The roll-type sheet laying device of the present invention can typically be used for agricultural mulch sheets, but is not limited to this and can be used for various roll-type sheets, such as roll-type weed control sheets.

[0028] As described above, the present invention claims a roll-type sheet laying device as a finished product composed of a string-like member and a metal member. In addition, the present invention includes the metal member itself as a claim. In other words, the configuration and shape of the metal member of the present invention are essential elements and exclusive items for establishing the roll-type sheet laying tool of the present invention. Therefore, the act of selling the metal member can be regarded as the same as the act of implementing the roll-type sheet laying tool. EXAMPLES

[0029] The roll-type sheet laying device of the present invention will be described in detail with reference to the drawings.

[0030] <<Embodiment 1>> FIG. 1 shows a roll-type sheet laying tool 1, with the upper part of the figure showing the entire roll-type sheet laying tool 1 and the lower part of the figure showing the metal member 3. The roll-type sheet laying device 1 is composed of a pair of metal members 3 and a string-like member 2 that connects them. Furthermore, the metal member 3 consists of an insertion member 31 and a connecting member 32 connected to it approximately vertically, and the end of the connecting member 32 is provided with a connecting ring 33 for connecting (forming a knot) with the string-like member 2.

[0031] <<Embodiment 2>> FIG. 2 shows a roll-type sheet laying tool 1', with the upper part of the figure showing the entire roll-type sheet laying tool 1' and the lower part of the figure showing a metal member 3'. The roll-type sheet laying device 1' is composed of a pair of metal members 3' and a string-like member 2' that connects them. Furthermore, the metal member 3' comprises an insertion member 31', a first connecting member 32' connected to it approximately vertically, and a second connecting member 33' connected to the first connecting member 32' approximately vertically, and the end of the second connecting member 33' is provided with a connecting ring 34' which connects (forms a knot) with the string-like member 2'.

[0032] The state in which a sheet is laid using the roll-type sheet laying tool 1' is shown in Fig. 3. The relationship between the roll-type sheet laying tool 1' and the roll-type sheet at this time will be explained using Figs. 4 and 5. When the roll-type sheet laying tool 1' is pulled as shown in Figure 3, the roll-type sheet laying tool 1' and the roll move in the forward direction of Figure 4. When the roll-type sheet laying tool 1' etc. move in the forward direction, the tip of the insertion member 31' comes into contact with the inner cavity of the roll (part y in Figure 4). At this time, the tip of the insertion member 31' is in a state where it is pushing the inner cavity of the roll in the opposite direction to the forward direction (direction c in Figure 5). In addition, the connection portion between the first connecting member 32' and the second connecting member 33' (hereinafter simply referred to as the "connection portion") is caught on the corner of the roll cavity (part x in Fig. 4). Furthermore, a pulling force acts on this connection portion and the corner of the roll cavity obliquely in the traveling direction (direction b in Fig. 5). As a result, when the roll-type sheet-laying device 1' is pulled, the pair of metal members 3' move forward in a manner that sandwiches the roll, and since the metal members 3' do not hinder the rotation of the roll, the roll rotates without any problems and the sheet is laid. Furthermore, by adjusting the balance of pulling force on the left and right handles, the user can lay the sheet out not only in a straight line but also in a curved shape.

[0033] <<Prototype Example>> A prototype of the roll-type sheet laying device of the present invention will be described. Figure 6 shows the entire prototype, Figure 7 shows the prototype when carried, and Figure 8 shows the prototype in actual use. The metal part in the prototype is made by bending a single metal rod and welding a connecting ring to it. The surface is also painted to prevent rust. Furthermore, nylon strings (string-like members) are tied to the connecting rings to connect them together. In addition, this prototype is made by stacking metal members and wrapping a string-like member around it, making it very compact and easy to carry.

Claims

1. A string-like member; A roll-type sheet laying device consisting of a pair of metal members connectable to a string-like member, The metal parts are An insertion member that can be inserted into the inner cavity of the roll; A connecting member that is connected to the insertion member substantially vertically; It consists of A roll-type sheet laying device characterized in that the connecting member is provided with a string-like member.

2. The connecting member includes a first connecting portion and a second connecting portion, The first connecting portion is connected to the insertion member substantially vertically, 2. The roll-type sheet laying device according to claim 1, wherein the second connecting portion is connected to the first connecting portion substantially vertically and has a string-like member at an end thereof.

3. 3. The roll-type sheet laying device according to claim 2, wherein any one or more of the insertion member, the first connecting portion, and the second connecting portion are rod-shaped.

4. 2. The roll-type sheet laying tool according to claim 1, wherein the insertion member is longer than the diameter of the inner cavity of the roll-type sheet and has a length of 10% to 40% of the width of the roll-type sheet.

5. 2. The roll-type sheet laying device according to claim 1, wherein the insertion member is configured to have a length of 10 cm to 50 cm.

6. 3. The roll-type sheet laying device according to claim 2, wherein the first connecting portion is configured to have a length of 10 to 50 cm.

7. 3. The roll-type sheet laying device according to claim 2, wherein the second connecting portion has a length of 10 to 40 cm and is shorter than the length of the insertion member.

8. 8. A roll-type sheet laying tool according to claim 1, which is used for agricultural mulch sheets and weed control sheets.

9. A roll-type sheet laying device according to any one of claims 1 to 7, A metal member having an insertion member that can be inserted into the inner cavity of the roll and a connecting member that connects to the insertion member approximately vertically.

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