JP7261513B1 - sheet presser - Google Patents

Abstract

[PROBLEMS] To press and fix a sheet-like object to the ground with a presser plate via a presser pin member, by striking a connecting piece at the upper end of the presser pin member with a hammer until the presser plate is embedded in the ground. Also, to provide a sheet-like object presser that hardly deforms a presser plate into a convex downward shape. A pressing plate (6) for pressing a sheet-like material (2) against the ground (3) on a lower surface (5) and two pin bodies (10, 10) which are inserted through insertion holes (9, 9) provided on the left and right sides of the pressing plate (6), and upper ends of the two pin bodies (10, 10) are connecting pieces. It comprises a hold-down pin member 7 connected at 11 . The holding plate 6 is formed by connecting the center portions of two parallel vertical projections 29, 29 extending with the insertion holes 9, 9 positioned at the center and connected by the connecting projection 21. An H-shaped reinforcing rib portion 25 having a series of H-shaped outer shapes is provided, and the pressing plate 6 is reinforced by the H-shaped reinforcing rib portion 25 . [Selection drawing] Fig. 1

Description

TECHNICAL FIELD The present invention relates to a sheet presser for pressing and fixing a sheet such as a weed control sheet or an agricultural mulch sheet to the ground.

As an example of a sheet presser for pressing and fixing a sheet such as a weed control sheet or an agricultural mulch sheet to the ground, sheet pressers according to Patent Document 1, Patent Document 2, and Patent Document 3 are provided. ing.

Each of the sheet pressers disclosed in these patent documents includes a presser plate that can be opened to hold the sheet on the ground on the lower surface side, and the presser plate that presses the presser plate against the ground. The presser plate and the presser pin member are formed separately, and the presser plate can be attached to the presser pin member so as to overlap the presser pin member. It had been.

FIG. 16 shows an example of this. The presser plate a is provided with two right and left through holes b, b with a required space therebetween, while the presser pin member c is provided in both of the through holes. The upper ends of two pin bodies e, e which are inserted through b, b and pushed into the ground d are connected by a connecting piece f. The pressing plate a is provided with receiving grooves g, g for receiving the pin bodies e, e of the pressing pin member c. The receiving grooves g, g constitute the pressing plate a. The presser plate substrate is recessed from one of its upper and lower surfaces toward the other.

Now, in order to press and fix the sheet h to the ground d with the pressing plate a rotated to the open state, the connecting piece f of the pressing pin member c is pressed with a hammer. As shown in FIG. 16, there is no problem in pressing the sheet h against the ground d with a certain amount of pressing force. Preferably, the connecting piece f is strongly pressed with a hammer so that the pressing plate is embedded in the ground.

FIG. 17 shows an example of a state in which the presser plate a is sunk into the ground d by such impact pressure. Due to the lack of rigidity of the edge side portion of the conventional presser plate a, when the presser plate a is embedded, the portions k, k on both sides of the connecting piece f of the presser plate a are bent as shown in FIGS. 17(A) and 17(B). As shown, it tends to be in a bent state with a downward convex shape. In particular, when the pressing pin member c has a U shape in which the upper ends of two pin bodies e are connected to each other by an arc-shaped connecting piece f projecting upward, as shown by a dashed line in FIG. Also, the portion j (FIG. 16) between the two insertion holes b, b of the pressing plate a was curved downward.

When the presser plate a is curved downward in this manner, the following problems arise. That is, firstly, since the edge side portion k of the pressing plate a is lifted from the sheet h as shown in FIGS. The pressing of the object h became unstable, and the intended purpose of pressing the sheet h firmly against the ground d in a stable state was not achieved. Secondly, when the edge portion k is lifted from the sheet h, there is a possibility that the lifted edge m may be tripped over. Thirdly, when the pressing plate a is curved downward, earth and sand accumulate in the recess n on the upper surface and in the gap p between the raised edge portion k and the sheet h. There was a problem that weeds grew easily.

Japanese Patent Application Laid-Open No. 2021-100405 JP 2018-78821 A JP 2022-59663 A

The present invention was developed in view of the above problems, and when a sheet-like object such as a weed control sheet or an agricultural mulch sheet is pressed and fixed to the ground, the presser plate becomes embedded in the ground. It is an object of the present invention to provide a sheet presser in which the presser plate is less likely to be deformed downwardly even if the connecting piece of the presser pin member is hit with a hammer.

In order to solve the above problems, the present invention employs the following means.
That is, a first aspect of the sheet presser according to the present invention is a sheet presser for pressing and fixing a sheet to the ground, wherein the sheet is pressed to the ground on the lower surface side. a presser plate capable of exhibiting an open state and a presser pin member for pressing the presser plate against the ground; the presser plate and the presser pin member are separately formed; It can be attached to the presser pin member so as to exhibit an overlapping state of overlapping with the presser pin member. The presser plate is provided with two right and left through-holes at a required interval, while the presser pin members are two pin bodies that are inserted through both of the through-holes and pushed into the ground. are connected by connecting pieces. The pressing plate can be slid while being guided by both pin bodies in a state in which the pin body is inserted into the insertion hole, and in the open state, can exhibit a highest position in contact with the connecting piece. . In addition, when viewed in the overlapping state in which the presser pin member is oriented vertically so that the connecting piece is positioned at the upper end and the presser plate is mounted so as to overlap the presser pin member, the lower surface side of the presser plate has two lower surface accommodating grooves extending from the left and right through-hole portions toward the lower side of the pressing plate to continue to the outer edge of the pressing plate and to accommodate the two pin bodies. . Each of the lower surface accommodation grooves is formed between first and second groove-forming protrusions projecting from the lower surface side of the presser plate substrate that constitutes the presser plate so as to be opposed to each other on the lower surface side. Two upper surface receiving grooves extending from the left and right insertion holes toward the upper side of the pressing plate and connected to the outer edge of the pressing plate and accommodating the two pin bodies are provided on the opposing upper surface sides. is provided. The upper surface accommodating groove is provided by recessing the pressing plate substrate from the upper surface side toward the lower surface side, and forming a lower projection extending from the insertion hole to the outer edge of the pressing plate on the lower surface side. It is Further, a connecting ridge is provided on the lower surface side for connecting the insertion holes, and the connecting ridge is located at the base ends of the left and right lower ridges and at the center of the presser plate. H-shaped reinforcing ridges exhibiting a series of H-shaped external shapes by being integrally connected to the base end portion located on the side and the base end portion of the first groove-forming projection located on the central portion side. part is formed. Then, the two pin bodies can be accommodated in the upper surface accommodation groove and the lower surface accommodation groove, and the holding plate can exhibit the overlapping state in which the holding plate is mounted so as to overlap the holding pin member. In addition, the pressing plate is characterized in that it can rotate from the overlapped state to the open state.

A second aspect of the sheet presser according to the present invention is the first aspect, wherein the presser pin member has two pin bodies inserted through the insertion holes and pushed into the ground. It has a U-shape connected by a horizontal straight connecting piece, and the connecting ridge forms a connecting groove in which the connecting piece can be accommodated, orienting the pressing plate substrate from the upper surface side to the lower surface side. It is characterized in that it is formed by forming a dented portion with a ridge protruding from the lower surface side.

According to a third aspect of the sheet presser according to the present invention, in the first aspect or the second aspect, the tip portions of the first and second groove-forming protrusions near the outer edge are: It is formed as an inclined surface that inclines toward the upper surface side toward the outer edge, and a tip portion of the lower projection near the outer edge is formed as an inclined surface that inclines toward the upper surface side toward the outer edge. It is characterized by being

According to a fourth aspect of the sheet presser according to the present invention, in the second aspect, the upper surface accommodating groove has a groove depth that does not allow the pin body to protrude toward the upper surface, and the connecting groove is , the connecting piece has a groove depth that does not project to the upper surface side, the two pin bodies are inserted into the two right and left insertion holes, and the connecting piece is accommodated in the connecting groove. It is characterized in that the upper surface side can be formed flat in a state of being folded.

A fifth aspect of the sheet presser according to the present invention is a sheet presser for pressing and fixing a sheet to the ground, wherein the sheet can be pressed to the ground on the lower surface side. and a presser pin member for pressing the presser plate against the ground, the presser plate and the presser pin member are formed separately, and the presser plate It can be attached to the hold-down pin member in such a way that it can be placed in an overlapped state overlying the pin member. The presser plate is provided with two right and left through-holes at a required interval, while the presser pin members are two pin bodies that are inserted through both of the through-holes and pushed into the ground. are connected by connecting pieces. The pressing plate can be slid while being guided by both pin bodies in a state in which the pin body is inserted into the insertion hole, and in the open state, can exhibit a highest position in contact with the connecting piece. . In addition, when viewed in the overlapping state in which the presser pin member is arranged in a vertical direction in which the connecting piece is positioned at the upper end and the presser plate is mounted so as to overlap the presser pin member, the upper surface side of the presser plate has two upper surface receiving grooves extending from the left and right through-hole portions toward the upper side of the pressing plate to continue to the outer edge of the pressing plate and to accommodate the two pin bodies. . each of the upper surface accommodation grooves is formed between first and second groove-forming protrusions projecting from the upper surface side of the pressing plate substrate constituting the pressing plate so as to face each other;
On the lower surface side, there are two lower surface receiving grooves extending from the left and right insertion holes toward the lower side of the pressing plate to continue to the outer edge of the pressing plate and to accommodate the two pin bodies. is provided. The lower surface accommodating groove is formed by denting the pressing plate substrate constituting the pressing plate from the lower surface side toward the upper surface side, and forming an upper protrusion extending from the insertion hole to the outer edge of the pressing plate on the upper surface side. is provided to form the Further, on the upper surface side, a connecting ridge is provided for connecting the insertion holes, and the connecting ridge is located at the base ends of the left and right upper ridges and at the center of the pressing plate. H-shaped reinforcing ridges exhibiting a series of H-shaped external shapes by being integrally connected to the base end portion located on the side and the base end portion of the first groove-forming projection located on the central portion side. In the presser pin member, when the two pin bodies are inserted through the insertion holes and the presser plate is opened, the connecting piece is positioned above the connecting rib portion. do. Then, the two pin bodies can be accommodated in the upper surface accommodation groove and the lower surface accommodation groove, and the holding plate can exhibit the overlapping state in which the holding plate is mounted so as to overlap the holding pin member. In addition, the pressing plate is characterized in that it can rotate from the overlapped state to the open state.

According to the present invention, when a sheet-like object such as a weed control sheet or an agricultural mulch sheet is pressed and fixed to the ground, the connecting piece of the pressing pin member is pushed until the pressing plate is embedded in the ground. Even if the presser plate is pressed with a hammer, it is difficult to deform the presser plate into a downwardly convex shape. As a result, it is said that sediment accumulates in the recessed portion of the upper surface of the presser plate and the gap between the raised edge side portion and the sheet-like object, and grass grows easily. Conventional problems can be solved.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view illustrating the overall configuration of a sheet presser according to the present invention; It is a perspective view which shows the lower surface side of a presser plate. FIG. 4 is a perspective view showing a state in which a presser plate is used to press a sheet-like object against the ground using a U-shaped presser pin member. FIG. 4 is a cross-sectional view showing a state in which a presser plate is used to press a sheet-like object against the ground using a U-shaped presser pin member. FIG. 4 is a cross-sectional view showing a state in which a presser plate is used to press a sheet-like object against the ground using a U-shaped presser pin member. It is the front view, the side view, and the back view which mounted|wore the presser plate in the state which overlapped with the presser pin member. FIG. 10 is an explanatory diagram illustrating a work process for opening the presser plate overlapping the presser pin member; It is a top view explaining the upper surface side of a presser plate. It is a rear view explaining the lower surface side of a presser plate. FIG. 4 is a cross-sectional view showing a case where a U-shaped presser pin member is used when pressing a sheet-like object against the ground with a presser plate. FIG. 4 is a cross-sectional view showing a pressing plate having a connecting ridge portion without connecting grooves; FIG. 10 is a perspective view for explaining a sheet presser configured with an H-shaped reinforcing ridge on the upper surface side; FIG. 4 is a perspective view showing the lower surface side of a presser plate that constitutes the sheet presser; FIG. 4A is a front view, a rear view, and a side view of a presser plate that constitutes the sheet presser and is attached to the presser pin member in an overlapping state; FIG. 4 is a perspective view showing a state in which a presser plate is used to press a sheet-like object against the ground using a U-shaped presser pin member. FIG. 10 is a perspective view showing a state in which a sheet-like object is pressed against the ground by a pressing plate using a conventional sheet-like object pressing tool. FIG. 10 is an explanatory diagram for explaining a problem of a conventional sheet presser;

1 to 9, the sheet presser 1 according to the present invention presses and fixes a sheet 2 to the ground 3, and the sheet 2 can be pressed to the ground 3 on the lower surface side 5. It comprises a presser plate 6 capable of assuming an open state A opened as possible and a presser pin member 7 for pressing the presser plate 6 against the ground 3 .

The presser plate 6 and the presser pin member 7 are formed separately, and the presser plate 6 can be attached to the presser pin member 7 so as to exhibit an overlapping state B overlapping the presser pin member 7 . The holding plate 6 is provided with two right and left through-holes 9, 9 with a required interval, while the holding pin member 7 is inserted through the through-holes 9, 9 and pushed into the ground 3. The upper ends of the two pin bodies 10, 10 connected to each other are connected by a connecting piece 11. As shown in FIG. The pressing plate 6 can be slid while being guided by the pin bodies 10, 10 in a state in which the pin bodies 10, 10 are inserted through the insertion holes 9, 9. As shown, it can assume the highest position abutting the connecting piece 11 . In addition, when viewed in the overlapping state B in which the pressing pin member 7 is mounted in the vertical direction so that the connecting piece 11 is positioned at the upper end and the pressing plate 6 overlaps the pressing pin member 7, FIG. (A), as shown in FIG. It has two lower surface accommodating grooves 13, 13 which are connected to the outer edge 12 of the pin bodies 10, 10 and accommodate the two pin bodies 10, 10. As shown in FIG. Further, the lower surface receiving grooves 13, 13 are formed by first and second groove forming protrusions 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, respectively. It is formed between 16 On the upper surface side 17 facing the lower surface side 5, as shown in FIGS. There are provided two upper surface receiving grooves 19, 19 which are extended toward the upper side of the plate 6 and connected to the outer edge 12 of the pressing plate 6, and in which the two pin bodies 10, 10 are received. The upper surface accommodating groove 19 is formed by recessing the pressing plate substrate 15 from the upper surface side 17 toward the lower surface side 5 and extending from the insertion hole portion 9 to the outer edge 12 of the pressing plate 6 on the lower surface side 5 . A lower ridge portion 20 is formed and provided. A connecting ridge portion 21 connecting the insertion holes 9, 9 is provided on the lower surface side 5. As shown in FIG. As shown in FIG. 8, the connecting rib portion 21 is composed of base end portions 22a of the base end portions 22 of the left and right lower rib portions 20, 20 on the side of the center portion of the pressing plate 6, and the center portion. An H-shaped reinforcing rib portion 25 having a series of H-shaped outer shapes is formed by being integrally connected to the base end portion 23 of the first groove-forming projection piece 16a located on the side. Then, as shown in FIG. 6A, the two pin bodies 10, 10 are accommodated in the upper surface accommodating groove 19 and the lower surface accommodating groove 13, and the pressing plate 6 is attached to the pressing pin. The pressing plate 6 can exhibit the overlapping state B (FIG. 6) mounted so as to overlap the member 7, and the pressing plate 6 changes from the overlapping state B (FIG. 6) to the open state A (FIGS. 3 and 7). can be rotated to present
This will be described in detail below.

The pressing plate 6 is made of synthetic resin, for example, and as shown in FIGS. , and two right and left insertion holes 9, 9 are provided in the central portion thereof with a required interval. In this embodiment, the through holes 9, 9 are configured as elliptical holes slightly elongated in the left-right direction, as shown in FIGS.

As shown in FIGS. 1 and 6, the pressing pin member 7 is formed by bending a metal round wire into a U-shape. The specific configuration of the pressing pin member 7 is such that the upper ends of the two left and right pin bodies 10, 10 with sharp lower ends 8, which are inserted through the insertion holes 9, 9 and pushed into the ground 3, are horizontal. They are connected by the connecting piece 11 having a linear shape.

In this embodiment, the left and right pin bodies 10, 10 are connected by the connecting piece 11 so as to open slightly outward, and the two pin bodies 10, 10 are elastically narrowed inward. It is made possible. The pin bodies 10, 10 can be smoothly inserted through the insertion holes 9, 9, and the holding plate 6 is guided by the pin bodies 10, 10 and slides in the longitudinal direction (vertical direction). As shown in FIG. 3, the pressing plate 6 can assume the highest position where the connecting piece 11 abuts. Here, "the pressing plate 6 abuts on the connecting piece 11" means that the pressing plate 6 is in contact with the entirety of the connecting piece 11 or at least on both side portions 14, 14 thereof.

The relationship between the pressing pin member 7 having such a configuration and the shapes of the insertion holes 9, 9 is as follows. That is, in the overlapped state A, as shown in FIG. 6A, the pin bodies 10, 10 are elastically constricted inward so that the insertion shafts of the pin bodies 10, 10 are It exists in the outer hole portions 15, 15 (FIG. 8) of the elliptical insertion holes 9, 9, and the insertion shaft portion is elastically pressed against the outer edge portion (FIG. 6A). is in good condition. When the gap between the pin bodies 10, 10 is narrowed in this state, the insertion shafts of the pin bodies 10, 10 are inserted into the hole portions 18, 18 (FIG. 8) inside the insertion holes 9, 9. can exist.

Also, the pressing pin member 7 is vertically positioned so that the connecting piece 11 is positioned at the upper end, and the pressing plate 6 is mounted so as to overlap the pressing pin member 7 in the overlapping state B (see FIG. 6A). As shown in FIG. 8, on the lower surface side 5 of the presser plate 6, the lower side of the presser plate 6 (the lower side as viewed in the overlapping state B) extends from the left and right insertion holes 9, 9. ) to connect to an outer edge 12a (in this embodiment, either one of the linear front and rear edges 6a, 6a) of the pressing plate 6, and the two pin bodies 10, 10 are connected to The two lower face receiving grooves 13, 13 for receiving are provided.

The lower surface housing grooves 13, 13 are formed by the first and second groove forming projections 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 18, 19, 19, 19, 19, 19, 19, and 19, respectively. It is formed between 16 On the upper surface side 17 of the pressing plate 6, as shown in FIG. and continues to an outer edge 12b (in this embodiment, the other of the linear front and rear edges 6a, 6a) of the pressing plate 6, and accommodates the two pin bodies 10, 10. Two top receiving grooves 19, 19 are provided. The upper surface receiving groove 19 is formed by recessing the pressing plate substrate 15 from the upper surface side 17 toward the lower surface side 5 and extending from the insertion hole portion 9 to the outer edge 12b (the front and rear grooves) of the pressing plate 6 on the lower surface side 5 . The lower ridge portion 20 is formed and provided to reach the other edge 6a, 6a. In this embodiment, the upper surface receiving groove 19 is provided with a groove depth that does not allow the pin body 10 to protrude toward the upper surface side 17 .

Further, on the upper surface side 17, a connecting groove 27 is formed so that the connecting piece 11 can be accommodated with a groove depth that does not project to the upper surface side 17. , and the connecting rib portion 21 is formed on the lower surface side 5 . As described above, the connecting rib portion 21 is formed by the base end portions 22a of the base end portions 22 of the left and right lower rib portions 20, 20 on the side of the central portion of the pressing plate 6, and the base end portion 22a on the side of the central portion. The H-shaped reinforcing rib portion 25 is formed by being integrally connected to the base end portion 23 of the first groove forming projection piece 16a located at . In this embodiment, the lower ridges 20, 20 and the connecting ridge 21, which constitute the H-shaped reinforcing ridge 25, are formed at the same time as the upper housing groove 19 and the connecting groove 27 are formed. be.

The H-shaped reinforcing ribs 25 are arranged in parallel on the left and right sides of the lower surface 5 of the presser plate 6 when the presser plate 6 is viewed in the overlapping state B (FIG. 6A). The two vertical projections 29, 29 (FIGS. 2 and 8) for reinforcing the pressing plate 6 and the longitudinal center portions of the two vertical projections 29, 29 are integrally connected to each other. It consists of one said connection protrusion part 21 which carries out.

With the two pin bodies 10, 10 accommodated in the upper surface accommodating groove 19 and the lower surface accommodating groove 13, the pressing plate 6 is mounted so as to overlap the pressing pin member 7. The overlapping state B (FIG. 6) can be exhibited, and the pressing plate 6 can be rotated from the overlapping state B to the open state A (FIGS. 3 and 7). The presser plate 6 may overlap the presser pin member 7 at any position in the longitudinal direction.

Particularly in this embodiment, as shown in Figs. , are formed as inclined surfaces 30a, 30a that are inclined toward the upper surface side 17, and the front side portions 31, 31 of the lower ridge portion 20 near the outer edge 12 are inclined toward the outer edge 12 and inclined toward the upper surface. It is formed as inclined surfaces 31 a , 31 a inclined to the side 17 . The inclination angle of the inclined surfaces 30a and 31a with respect to the pressing plate substrate 15 is set to about 30 degrees.

Next, one aspect of packing the sheet presser 1 having such a configuration will be described. The two pin bodies 10, 10 inserted through the two right and left insertion holes 9, 9 are accommodated in the upper surface accommodation grooves 19, 19 and the lower surface accommodation grooves 13, 13, The overlapping state B shown in FIG. 6 is obtained. The state indicated by the solid line in FIG. 6 shows the state B in which the presser plate 6 overlaps the upper portions 3 of the left and right pin bodies 10 , 10 . This is referred to as a first sheet presser 1a. The state indicated by the dashed line in FIG. 6 shows the case where the pressing plate 6 is overlapped with the intermediate portions of the left and right pin bodies 10 , 10 . This is referred to as a second sheet presser 1b. The first and second sheet pressers 1a and 1b have a state in which the length direction of the pin bodies 10 and 10 are parallel to the surface direction of the presser plate 6, and are flat as a whole. presenting.

The first sheet presser 1a and the second sheet presser 1b having such a flat shape are stacked in the same orientation as viewed in the vertical direction of the presser pin member 7. As shown in FIG. By the way, since the upper surface side 17 and the lower surface side 5 of the pressing plate 6 are provided with the first and second groove forming protrusions 16 and 16 and the lower protrusion 20 as described above, 1. The presser plate 6 is thicker than the presser plate substrate 15 due to the second groove forming protrusions 16a and 16b and the lower protrusion 20. As shown in FIG.

As described above, since the entire thickness of the presser plate 6 is thick, if all the presser plates 6 of the sheet pressers 1 to be stacked are successively stacked, the stacking state becomes extremely bulky. I'm going to put it on. However, in the present invention, as described above, the presser plate 6 can be arranged at any position when viewed in the length direction of the presser pin member 7. By shifting the mounting position of the pressing plate 6 to reduce the number of pressing plates 6 stacked at one location, the packing form in the bulk direction can be made compact.

In the present invention, only the first sheet pressing member 1a may be oriented and stacked, or only the second sheet pressing member 1b may be oriented and stacked. A packing form or the like may be adopted in which a set in which the number, for example, five is stacked is sequentially stacked with the direction of the pressing pin member 7 viewed in the vertical direction reversed.

Next, the state of use of the sheet presser 1 after unpacking will be described. In order to press and fix the sheet-like material 2 to the ground 5 using the removed sheet-like material pressing tool 1, the sheet-like material 2 can be pressed to the ground 3 with the lower surface side 5 of the pressing plate 6. The open state A (FIG. 7) is set so that it can be opened. After that, the presser plate 6 thus opened is supported from below by the upper part of one hand holding both the pin bodies 10, 10, and the connecting piece 11 is pressed with a hammer by the other hand. The lower ends 8, 8 of the pin bodies 10, 10 pierce the sheet-like material 2 by the impact pressure, and the pressing pin member 7 is pushed into the ground 3. As shown in FIG. In order to strongly press the sheet-like material 2 against the ground 5, the connecting piece 11 is pressed with a hammer until the pressing plate 6 sinks into the ground 5. As shown in FIG.

3 to 5 show a state in which the pressing plate 6 is embedded in the ground 3 and the sheet-like object 2 is strongly pressed against the ground 3. FIG. Even if the connecting piece 11 is strongly hit with a hammer until the holding plate 6 is embedded in the ground 3, the holding plate 6 is deformed by the reinforcing action of the H-shaped reinforcing rib portion 25. hard to let

To explain this reinforcing action, even if the presser plate 6 is buried in the ground 3, the two vertical projections arranged in parallel on the left and right sides of the lower surface 5 of the presser plate 6 will remain in place. Streaks 29, 29 (constituted by integrally connecting the lower ridge 20 and the groove-forming ridge 16 via the connecting ridge 21) connect the pressing plate 6 to its lower surface. The side 5 is reinforced, and the portions 35, 35 (FIG. 3) of the holding plate 6 on both sides of the connecting piece 11 are curved and deformed so that the holding plate 6 is convex downward (arrow F1 in FIGS. 3 and 5) Bending deformation indicated by ) is suppressed. In addition, the connecting rib portion 21 prevents the portion 36 of the pressing plate 6 between the insertion holes 9, 9 from bending downward (curving deformation indicated by arrow F2 in FIG. 3). do. Such a reinforcing effect can be reliably obtained because the H-shaped reinforcing rib portion 25 (FIG. 8) is integrated as a whole.

As a result, the sheet 2 can be strongly and stably pressed against the ground 5 by the pressing plate 6 having a flat plate shape. Further, since the edge side portion 37 of the presser plate 6 is less likely to be lifted from the sheet-like material 2 as in the prior art, there is no danger of stumbling over the lifted edge as in the prior art. Furthermore, since the edge-side portion 37 is less likely to be lifted from the sheet-like material 2, the gap between the edge-side portion 37 and the sheet-like material 2, which has been lifted, and the presser plate 6 formed by bending deformation, may be removed. It is difficult to cause the problem in the prior art that earth and sand are deposited on the recessed portion of the upper surface side 17 of the housing and grass tends to grow there.

Especially in this embodiment, as shown in FIGS. 3 and 5, the connecting groove 27 is provided with a groove depth that does not allow the connecting piece 11 to protrude toward the upper surface side 17, so that the pressing plate 6 can be The upper surface side 17 can be formed flat while the sheet-like material 2 is pressed against the ground 5. - 特許庁Therefore, it is difficult for earth and sand to accumulate on the upper surface side 17 of the pressing plate 6, and it is difficult for grass to grow on the upper surface side.

In this embodiment, as shown in FIGS. 2 and 8, the tip portions of the first and second groove forming protrusions 16, 16 near the outer edge 12 are directed toward the outer edge 12 and It is formed as an inclined surface 30 a inclined toward the upper surface side 17 . Therefore, when the pressing plate 6 is buried in the ground 5, the sheet 2 is pressed against the inclined surfaces 30a and 31a as shown in FIG. The sheet-like object 2 can be easily pressed by the second groove-forming protrusions 16 and 16 and the lower protrusions 20 near the outer edge 12, and the edge-side portion 37 of the pressing plate 6 can be easily pressed. It is possible to suppress the tendency of floating up.

For example, as shown in FIG. 10, the sheet presser 1 according to the present invention includes the presser plate 6 according to the above-described embodiment and two pin bodies 10, 10 whose upper ends are mutually convex arc-shaped. It is also possible to use a U-shaped pressing pin member 7 connected by a connecting piece 11 . Even if the pressing plate 6 used in this case is provided with the connecting groove 27, which is not required, and has the connecting ridge portion 21 shown in FIG. 11 may be provided.

When a sheet presser is constructed using the U-shaped presser pin member 7, as shown in FIG. 44 is in contact with both end portions 45, 45 of the arc-shaped connecting piece 11, the pressing plate 6 assumes the highest position. In this state, by pressing the connecting piece 11 with a hammer, the pressing pin member 7 is pushed into the ground 3, and even if the pressing plate 6 is embedded in the ground 5, both the insertion holes of the pressing plate 6 can be removed. It is possible to suppress an attempt to deform the portion between the portions 9, 9 into a downwardly curved state (curving deformation as indicated by an arrow F3 in FIG. 10). This is because the pressing plate 6 is reinforced by the H-shaped reinforcing ridges 25. In particular, the connecting ridges are integrally connected to the vertical ridges 29, 29 at both ends. 21 (FIG. 8).

12 to 15 show another embodiment of the sheet presser 1 according to the present invention. 1 is constructed by using a holding plate 6 of the same construction as in 1 upside down.

That is, the sheet presser 1 is in an open state A (FIGS. 14(C) and 15) in which the sheet 2 can be pressed against the ground 3 on the lower surface side 5 (FIG. 13). ) and a pressing pin member 7 for pressing the pressing plate 6 against the ground 3, the pressing plate 6 and the pressing pin member 7 are formed separately, and the pressing plate 6 is As shown in 14(A) and 14(B), it is constructed so that it can be attached to the pressing pin member 7 in an overlapping state B that overlaps the pressing pin member 7. As shown in FIG.

As shown in FIGS. 12 and 13, the pressing plate 6 is provided with two right and left through-holes 9, 9 at a required interval. A connecting piece 11 connects the upper ends of two pin bodies 10, 10 which are inserted through the pin 9 and pushed into the ground. The pressing pin member 7 may have the U-shape or the U-shape.

The pressing plate 6 can be slid while being guided by the pin bodies 10, 10 in a state in which the pin bodies 10, 10 are inserted through the insertion holes 9, 9. As shown in FIG. When the pressing pin member 7 has, for example, a U-shape, the pressing plate 6 abuts on the connecting piece 11 (abuts on the entire connecting piece 11 or at least on both side portions 14, 14) and rises. Position can be presented (Fig. 15). As shown in FIG. 14, the presser plate 6 is mounted so that the presser pin member 7 is oriented vertically so that the connecting piece 11 is positioned at the upper end, and the presser plate 6 overlaps the presser pin member 7. 14(A), on the upper surface side 17 of the presser plate 6, there are the left and right insertion holes 9, 9 toward the upper side of the presser plate 6. It has two upper surface accommodation grooves 19, 19 which extend inward and continue to the outer edge 12 of the pressing plate 6, and in which the two pin bodies 10, 10 are accommodated. The upper housing grooves 19, 19 are formed between first and second groove-forming protruding pieces 16, 16 projecting from the upper surface side of the presser plate base plate 15 constituting the presser plate 6 so as to face each other. It is

As shown in FIG. 14(B), on the lower surface side 5, the left and right insertion holes 9, 9 are extended downward from the pressing plate 6 and connected to the outer edge 12 of the pressing plate 6, and Two lower face receiving grooves 13, 13 for receiving the two pin bodies 10, 10 are provided. The lower surface accommodating grooves 13, 13 are formed by recessing the pressing plate substrate 15 from the lower surface side 5 toward the upper surface side 17, and extending from the insertion holes 9, 9 to the outer edge of the pressing plate 6 on the upper surface side 17. 12 are formed and provided.

Further, on the upper surface side 17, a connecting ridge portion 49 (FIG. 14(A)) for connecting the insertion holes 9, 9 is provided. Base end portions 51, 51 of the base end portions 50, 50 of the left and right upper rib portions 47, 47 on the side of the central portion of the pressing plate 6, and the first groove forming protrusions positioned on the side of the central portion. An H-shaped reinforcing ridge 25 having a series of H-shaped outlines is formed by being integrally connected to the proximal end portions 52, 52 of the pieces 16a, 16a.

With the two pin bodies 10, 10 inserted into the insertion holes 9, 9, the connecting piece 11 of the pressing pin member 7 is attached to the connecting rib portion 49 as shown in FIG. It is in contact with the upper part 53 (this is the case where the presser pin member has a U-shape and contacts the entire connecting piece 11 or at least both side portions 14, 14), or in a separated state (one point in FIG. 15). When the pressing pin member 7 has a U-shape (indicated by a dashed line), they are overlapped.

Then, as shown in FIG. 14, the two pin bodies 10, 10 are accommodated in the upper surface accommodation grooves 19, 19 and the lower surface accommodation grooves 13, 13, and the pressing plate 6 is attached to the pressing pin. 14(A) and (B) mounted so as to overlap the member 7, and the pressing plate 6 is placed in the overlapping state B as shown in FIG. 14(C). to the open state A.

In this embodiment as well, the sheet presser 1 having such a configuration is configured such that the presser plate 6 overlaps the upper and lower portions of the left and right pin bodies 10, 10 in the same manner as in the first embodiment. The pin bodies 10, 10 can be mounted in a flat shape as a whole in a state in which the length direction of the pin bodies 10, 10 is aligned with the surface direction of the pressing plate 6, and the packing form in the bulk direction can be made compact.

After unpacking, the usage condition of the sheet presser 1 is the same as in the first embodiment. supports the open presser plate 6 (FIG. 14(C)) from below with one hand holding the pin bodies 10, 10, and holds the connecting piece with the other hand. Hit 11 with a hammer. The lower ends 8, 8 of the pin bodies 10, 10 pierce the sheet-like material 2 by the impact pressure, and the pressing pin member 7 is pushed into the ground 3. As shown in FIG. In order to strongly press the sheet-like material 2 against the ground 5, the connecting piece 11 is pressed with a hammer until the pressing plate 6 sinks into the ground 3. As shown in FIG.

Even if the presser plate 6 is buried into the ground 3 by the impact pressure, the presser plate 6 is hardly deformed due to the reinforcing action of the H-shaped reinforcing rib portion 25 . This is because the H-shaped reinforcing rib portion 25 is formed on the upper surface side 17, and the reinforcing action of the H-shaped reinforcing rib portion 25 prevents the pressing plate 6 from being deformed.

Therefore, as in the first embodiment, the edge side portion 37 of the presser plate 6 is less likely to be lifted from the sheet-like object 2, so that the sheet-like object 2 is kept on the ground by the plate-like presser plate 6. It can be held firmly and stably. In addition, since the edge portion 37 is less likely to be lifted from the sheet-like object 2, a gap between the edge-side portion and the sheet-like object 2, which is lifted up, is formed by bending deformation, as in the conventional art. Therefore, it is difficult to cause the problem that weeds tend to grow due to accumulation of soil in the recessed portion of the upper portion of the presser plate 6.例文帳に追加

The solid line in FIG. 15 shows the state in which the sheet 2 is fixed to the ground 3 by using the U-shaped sheet presser 1, and the alternate long and short dash line in FIG. The state shows a state in which the sheet-like object 2 is fixed to the ground 3 by using the sheet-like object holding member 1 presenting a U shape.

The present invention is by no means limited to those shown in the above embodiments, and it goes without saying that various design changes are possible within the scope of the claims. An example is as follows.

(1) The left and right pin bodies 10, 10 may be in a parallel state in which they are substantially vertical.

(2) In the first embodiment, the upper surface accommodation groove 19 has a groove depth that allows the pin body 10 to protrude toward the upper surface side 17 when the pin body 10 is accommodated in the upper surface accommodation groove 19. may

(3) The pressing plate 6 may have a disc shape, a rectangular plate shape, a square plate shape, or the like, as long as it can press the sheet-like object 2 against the ground 3 .

(4) The pressing plate 6 may be made of metal, and the pressing pin member 7 may be made of synthetic resin.

(5) The sheet-like material 2 includes various sheet-like materials such as the above-described anti-grass sheet and agricultural mulch sheet, as well as a light-shielding sheet and a greening sheet. In addition to being a resin sheet, it may be in the form of various sheets such as non-woven fabric and cheesecloth.

1 sheet holder 2 sheet 3 ground 5 underside 6 holding plate 7 holding pin member 9 insertion hole
10 Pin 11 Connecting piece 12 Outer edge 13 Lower surface accommodation groove 15 Presser plate substrate 16 Groove forming protrusion 17 Upper surface side 19 Upper surface accommodation groove 20 Lower protrusion 21 Connecting protrusion 25 H-shaped reinforcing protrusion
27 Connection groove 29 Vertical projection 30a Inclined surface 31a Inclined surface 47 Upper projection 49 Connection projection

Claims (5)

A sheet presser for pressing and fixing a sheet to the ground, wherein the presser plate is capable of exhibiting an open state so that the sheet can be pressed to the ground on the lower surface side, and the presser plate. The presser plate and the presser pin member are formed separately, and the presser plate is attached to the presser pin member so as to overlap the presser pin member. can be worn,
The presser plate is provided with two right and left through-holes at a required interval, while the presser pin members are two pin bodies that are inserted through both of the through-holes and pushed into the ground. are connected by connecting pieces,
The pressing plate can be slid while being guided by both the pin bodies in a state in which the pin bodies are inserted into the insertion holes, and can assume a highest position in contact with the connecting piece in the open state. ,
In addition, when viewed in the overlapping state in which the presser pin member is oriented vertically so that the connecting piece is positioned at the upper end and the presser plate is mounted so as to overlap the presser pin member, the lower surface side of the presser plate has two lower surface accommodation grooves extending downward from the left and right insertion holes to the outer edge of the presser plate and accommodating the two pin bodies. ,
each of the lower surface accommodation grooves is formed between first and second groove-forming protrusions projecting from the lower surface side of the presser plate substrate that constitutes the presser plate so as to face each other,
On the upper surface side opposite to the lower surface side, there are two pin bodies that extend from the left and right insertion holes toward the upper side of the presser plate and continue to the outer edge of the presser plate and accommodate the two pin bodies. There is a groove on the upper surface of the
The upper surface accommodating groove is provided by recessing the pressing plate substrate from the upper surface side toward the lower surface side, and forming a lower projection extending from the insertion hole to the outer edge of the pressing plate on the lower surface side. and
Further, a connecting ridge is provided on the lower surface side for connecting the insertion holes, and the connecting ridge is located at the base ends of the left and right lower ridges and at the center of the presser plate. H-shaped reinforcing ridges exhibiting a series of H-shaped external shapes by being integrally connected to the base end portion located on the side and the base end portion of the first groove-forming projection located on the central portion side. part is formed,
In a state in which the two pin bodies are accommodated in the upper surface accommodating groove and the lower surface accommodating groove, the pressing plate can exhibit the overlapping state in which the pressing plate is mounted so as to overlap the pressing pin member, A sheet presser, wherein the presser plate is rotatable from the overlapping state to the open state. The pressing pin member has a U-shape in which the upper ends of two pin bodies that are inserted into the insertion hole and pushed into the ground are connected to each other by a horizontal straight connecting piece,
The connecting ridge portion is a ridge projecting from the lower surface side by forming a connecting groove in which the connecting piece can be accommodated by recessing the pressing plate substrate from the upper surface side toward the lower surface side. 2. The sheet presser according to claim 1, wherein the presser is composed of parts. The tip portions of the first and second groove-forming protrusions near the outer edge are formed as inclined surfaces that are inclined toward the upper surface toward the outer edge, and the lower ridge portion is inclined toward the outer edge. 3. The sheet presser according to claim 1, wherein the front side portion of the sheet presser is formed as an inclined surface inclined toward the upper surface side toward the outer edge. The upper surface accommodation groove has a groove depth that does not allow the pin body to protrude to the upper surface side,
The connecting groove has a groove depth that does not allow the connecting piece to protrude toward the upper surface,
3. The upper surface can be formed flat in a state in which the two pin bodies are inserted into the two right and left insertion holes and the connecting pieces are accommodated in the connecting grooves. sheet presser. A sheet presser for pressing and fixing a sheet to the ground, wherein the presser plate is capable of exhibiting an open state so that the sheet can be pressed to the ground on the lower surface side, and the presser plate. The presser plate and the presser pin member are formed separately, and the presser plate is attached to the presser pin member so as to overlap the presser pin member. can be worn,
The presser plate is provided with two right and left through-holes at a required interval, while the presser pin members are two pin bodies that are inserted through both of the through-holes and pushed into the ground. are connected by connecting pieces,
The pressing plate can be slid while being guided by both the pin bodies in a state in which the pin bodies are inserted into the insertion holes, and can assume a highest position in contact with the connecting piece in the open state. ,
In addition, when viewed in the overlapping state in which the presser pin member is arranged in a vertical direction in which the connecting piece is positioned at the upper end and the presser plate is mounted so as to overlap the presser pin member, the upper surface side of the presser plate has two upper surface receiving grooves extending from the right and left insertion holes toward the upper side of the pressing plate and continuing to the outer edge of the pressing plate, in which the two pin bodies are accommodated. ,
each of the upper surface accommodation grooves is formed between first and second groove-forming protrusions projecting from the upper surface side of the pressing plate substrate constituting the pressing plate so as to face each other;
On the lower surface side, there are two lower surface receiving grooves extending from the left and right insertion holes toward the lower side of the pressing plate to continue to the outer edge of the pressing plate and to accommodate the two pin bodies. is provided,
The lower surface accommodating groove is formed by denting the pressing plate substrate constituting the pressing plate from the lower surface side toward the upper surface side, and forming an upper protrusion extending from the insertion hole to the outer edge of the pressing plate on the upper surface side. is provided to form
Further, on the upper surface side, a connecting ridge is provided for connecting the insertion holes, and the connecting ridge is located at the base ends of the left and right upper ridges and at the center of the pressing plate. H-shaped reinforcing ridges exhibiting a series of H-shaped external shapes by being integrally connected to the base end portion located on the side and the base end portion of the first groove-forming projection located on the central portion side. part is formed,
In the pressing pin member, the connecting piece is positioned above the connecting ridge in a state in which the two pin bodies are inserted through the insertion hole and the pressing plate is opened,
In a state in which the two pin bodies are accommodated in the upper surface accommodating groove and the lower surface accommodating groove, the pressing plate can exhibit the overlapping state in which the pressing plate is mounted so as to overlap the pressing pin member, A sheet presser, wherein the presser plate is rotatable from the overlapping state to the open state.

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