[title of invention] frame for weed-proof sheet

Abstract

To provide a frame for weed-proof sheet, a frame that can be narrowly set between the weed-proof sheet and the ground even with presence of irregularity on the ground and is hardly turned.SOLUTION: In a frame for weed-proof sheet, a plurality of vertical frames and horizontal frames are annularly connected by connecting with a connecting material, and a plurality of inter frames is intermittently arranged in the vertical frames or the horizontal frames. Further, there are provided: frame materials having a plurality of supporting materials which is extended in a manner that a length is adjustable downward from the arbitrary positions of the vertical frames, the horizontal frames and the inter frames; a plurality of sheets which is for spreading in a manner closing each space formed by the vertical frames, the horizontal frames and inter frames; and clasps which are for staying the sheets in the vertical frames, the horizontal frames and the inter frames. The vertical frames, the horizontal frames and the inter frames are provided with a groove with a vacant top face, and are fastened by holding with the clasps by superimposing in the grooves the left ends of other sheets adjacent to the right ends of one sheet. The supporting materials are characterized by being adjusted in the length so that the interval between the frame materials and the ground becomes narrow.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a weed-proof sheet frame for laying a sheet on the ground to suppress the growth of weeds and the like.

Background Art

[0002] In order to suppress the growth of weeds in vacant lots, uncultivated fields, etc., a weed-proof sheet may be laid. The weed-proof sheet is covered with a vinyl sheet on the ground, and anchor pins are driven into the ground to hold it down so that it does not fly away. In some cases, a vinyl sheet is also stretched over a frame member and placed on the ground.

[0003] As described in Patent Document 1, there is also disclosed an invention of a weed-proof structure using a wooden frame on a slope that can sufficiently hold down the weed-proof sheet, prevent damage to the weed-proof sheet, leave no room for grass to grow, and promote the use of thinned wood. In addition, as in Patent Document 2, there is also disclosed an invention of a frame for a weed-proof sheet that can be installed with a narrow space between the weed-proof sheet and the ground even when the ground is uneven.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, the weed-proof structure described in Patent Document 1 places a holding frame in which a filling member using thinned wood is laid in each grid-like compartment space composed of vertical and horizontal members on the upper surface of the weed-proof sheet, and it is necessary to previously stretch the weed-proof sheet on a flat ground.

[0006] If a weed-proof sheet is pre-stretched on a frame member in advance, it can be installed simply by placing it on the ground. However, if the ground is uneven, the sheet may float above the ground as a whole, or the frame member may tilt, making it impossible to cover the weed-proof sheet evenly.

[0007] The frame for a weed-proof sheet described in Patent Document 2 is formed by intermittently fitting a plurality of fasteners to a pipe-shaped frame member with the ends of the sheet overlapped. Weeds may grow through the gaps due to the sheet curling between the fasteners.

[0008] Therefore, an object of the present invention is to provide a frame for a weed-proof sheet that can be installed with a narrow space between the weed-proof sheet and the ground even when the ground is uneven, and is difficult to curl.

Means for Solving the Problems

[0009] In order to solve the above problems, the frame for a weed-proof sheet of the present invention connects a plurality of vertical frames and horizontal frames with connecting members to form an annular connection, intermittently arranges a plurality of intermediate frames between the vertical frames or horizontal frames, and further has a plurality of support members that can be extended downward from an arbitrary position of the vertical frame, horizontal frame, and intermediate frame with adjustable length, a plurality of sheets for stretching to close each space formed by the vertical frame, horizontal frame, and intermediate frame, and fasteners for fixing the sheets to the vertical frame, horizontal frame, and intermediate frame. The vertical frame, horizontal frame, and intermediate frame have grooves with open upper surfaces, and the right end of one sheet and the left end of another adjacent sheet are overlapped in the groove and fixed by pressing with the fastener. The length of the support member is adjusted so that the space between the frame member and the ground becomes narrow.

Effects of the Invention

[0010] According to the present invention, the frame member with the weed-proof sheet can be installed with a narrow space between the weed-proof sheet and the ground. Even when the ground is uneven, the weed-proof sheet can be evenly covered without floating above the ground more than necessary as a whole or the frame member tilting unsteadily.

[0011] When directly covering the ground with the weed-proof sheet, through holes are made in the weed-proof sheet and fixed to the ground. There is a possibility that the breakage of the weed-proof sheet may spread from the through holes. However, since the ground is covered without making through holes in the weed-proof sheet, the durability of the weed-proof sheet can be maintained.

[0012] Since the ends of the sheets are overlapped and inserted into the concave frame material and fastened with a spring material, the sheets will not curl or have gaps. It also becomes easy to drive anchors into the ground or concrete and fix them from the frame material. In addition, it can be installed without gaps between the frame material and walls, etc. Furthermore, the frame material can be freely assembled while avoiding obstacles.

Brief Description of the Drawings

[0013]

Figure 1

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Figure 10

Embodiments for Carrying Out the Invention

[0014] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that those having the same function may be denoted by the same reference numerals, and repeated descriptions thereof may be omitted.

Example

[0015] First, the structure of the frame for a weed control sheet according to the present invention will be described. FIG. 1 is a plan view showing the frame for a weed control sheet. FIG. 2 is a bottom view showing the frame material of the frame for a weed control sheet. FIG. 3 is a plan view showing a state where a part of the sheet of the frame for a weed control sheet is peeled off. FIG. 4 is a front view showing a state where the frame for a weed control sheet is installed on the ground. FIG. 5 is a view showing (a) a perspective view of the frame material, (b) a cross-sectional view of the frame material, and (c) a fastener of the frame for a weed control sheet.

[0016] As shown in FIG. 1, the frame 100 for a weed control sheet is a frame material 200 with a weed control sheet 300 stretched over a predetermined area of the ground 110. The ground 110 is an empty lot, an uncultivated field, etc., and is not necessarily flat land and may have large unevenness. Since it suppresses the growth of weeds on the ground 110, it is mainly made of soil, and even if there are stones buried, it is land that is not paved with asphalt or concrete.

[0017] As shown in FIG. 2, the frame material 200 is a metal frame for stretching the sheet 300. A plurality of vertical frames 210 and horizontal frames 220 are connected by a connecting member 250 to be annularly connected, and a plurality of intermediate frames 230 are intermittently arranged between the vertical frames 210 at both ends so as to be arranged in the same direction, and further, a plurality of support members 240 are extended downward from an arbitrary position of the vertical frame 210, the horizontal frame 220, and the intermediate frame 230 so that the length can be adjusted. Note that the intermediate frame 230 may be arranged not only vertically but also horizontally.

[0018] As shown in FIG. 3, the sheet 300 is a vinyl sheet or the like for stretching in each space 260 formed by the vertical frame 210 or the intermediate frame 230 and the horizontal frame 220. A fastener 400 is used to fasten the sheet 300 to the vertical frame 210 or the intermediate frame 230.

[0019] The sheet 300 has a width that covers the vertical frames 210 or the intermediate frames 230 on both sides, and is pressed against the vertical frame 210 or the intermediate frame 230 by the fastener 400 with the left end of another sheet 300b adjacent to the right end of one sheet 300a overlapping.

[0020] As shown in FIG. 4, when the frame member 200 is placed on the ground 110, the support member 240 is stabbed into the ground 110 so that the space between the frame member 200 and the ground 110 becomes narrow. The sheet 300 is stretched for each space 260, and because it is flexible against expansion and elongation, even if there is a protruding portion on the ground 110, it can be received and the uneven difference on the ground 110 can be absorbed.

[0021] Each support member 240 can adjust its length, and it may be adjusted so that the depth into the ground 110 is uniform. Also, when hard things such as stones are buried and the support member 240 cannot be stabbed, a short one may be used.

[0022] As shown in FIGS. 5(a) and 5(b), for the frame member 200, for example, one having a concave groove 201 formed is used. From the empty portion on the upper surface, the end of the sheet 300 and the fastener 400 are inserted. The lower part may be widened and the upper part may be slightly narrowed. The upper end portion may be made protruding so that the fastener 400 can be locked so as not to come off.

[0023] As shown in FIG. 5(c), for the fastener 400, for example, a spring-like one such as a spring is used. Specifically, a wire or the like may be repeatedly bent in a wave shape with the width of the groove 201 of the frame member 200. When inserting into the groove 201, it is contracted to narrow the width, and it returns to its original state in the groove 201 and is pressed. If the ends of the sheet 300 are stored in the groove 201 and pressed by the fastener 400 along the groove 201, the sheet 300 can be fixed without a gap.

[0024] FIGS. 6 to 10 are diagrams showing the usage method of the frame for the weed control sheet. As shown in FIG. 6, the frame member 200 is assembled so as to be able to cover the area to be weeded. When there are obstacles such as tree roots, the frame member 200 may be assembled avoiding them.

[0025] When placing the spacer frame 230 at the corner of the vertical frame 210 and the horizontal frame 220, or in the middle of the vertical frame 210 or the horizontal frame 220, it may be directly fixed or the connecting member 250 may be interposed. Also, the connecting member 250 may be provided for each position where the support member 240 is arranged. The connecting member 250 may be made to freely change its outer shape, for example, by using a universal joint (swivel joint).

[0026] As shown in FIG. 7, as the support member 240, a pipe-shaped member may be arranged under the frame member 200, or a pipe may be fixed to the side of the frame member 200 with screws or the like. Also, all screws, anchors, etc. may be passed through the frame member 200 and driven into the ground through the lower pipe, or the frame member 200 may be directly screwed to concrete or the like without using a pipe or the like.

[0027] As shown in FIG. 8, when there are irregularities on the ground, when there are differences in height such as steps, or when it is inclined, the height at which the vertical frame 210, the horizontal frame 220, and the spacer frame 230 are fixed to the support member 240 may be changed, or they may be attached obliquely.

[0028] As shown in FIG. 9, by stretching the sheet 300 in each space 260 of the assembled frame member 200 and fixing it with the fastener 400, it is possible to cover the ground 110 so that no weeds grow without fixing the sheet 300 itself to the ground 110. Since the sheet 300 is fixed to the frame member 200, it will not be blown away, and also, the support member 240 only penetrates shallowly into the ground 110 and can be easily removed.

[0029] Overlap the right end of one sheet 300a and the left end of the adjacent sheet 300b, and in the state where they are placed in the groove 201 of the frame member 200, fit the fastener 400 into the groove 201 to press the ends of the sheet 300 against each other.

[0030] Note that the sheet 300 may be fastened using a groove formed in the wall. Similarly, the fastener 400 may be fitted into the groove to stretch the sheet 300. The gap to the wall can be blocked to prevent weeds. If necessary, empty windows may be formed in the sheet 300.

[0031] As shown in FIG. 10, the weed control sheet may be installed in a state of being lifted from the ground 110, or the weed control sheet may be stretched so as to directly cover the ground 110. According to the installation location, the attachment method of the frame material 200 may be adjusted, and once the frame material 200 is assembled, the sheet 300 can be easily fixed with the fastener 400.

[0032] According to the present invention, the frame material with the weed control sheet stretched can be installed with a narrow space between the weed control sheet and the ground. Even when there are irregularities on the ground, the weed control sheet can be evenly covered without floating excessively from the ground as a whole or the frame material swaying,

[0033] When the weed control sheet is directly covered on the ground, through holes are formed in the weed control sheet and fixed to the ground. Although the tear of the weed control sheet may spread from the through holes, since the ground is covered without forming through holes in the weed control sheet, the durability of the weed control sheet can be maintained.

[0034] Since the ends of the sheets are overlapped and inserted into the concave frame material and fastened with a spring material, the sheets will not curl or have gaps. It also becomes easy to drive and fix an anchor from the frame material into the ground or concrete. In addition, the frame material can be installed without gaps with walls, etc. Furthermore, the frame material can be freely assembled while avoiding obstacles.

[0035] As described above, the embodiments of the present invention have been described, but the present invention is not limited thereto. For example, the frame material may be an L-angle or a pipe shape, and any shape may be used as long as it functions as a frame. Also, a lattice-shaped frame material may be formed through the frame so as to intersect with the intermediate frame. Further, the support material may be simply placed on the ground after adjusting its length without piercing the ground.

Explanation of Signs

[0036] 100: Frame for weed control sheet 110: Ground 200: Frame material 201: Groove 210: Vertical frame 220: Horizontal frame 230: Intermediate frame 240: Support member 250: Connecting member 260: Space 300: Sheet 400: Fastener

Claims

[Claim 1] a frame material having a plurality of vertical frames and horizontal frames connected together in a ring shape by connecting members, a plurality of spacers intermittently disposed between the vertical frames or horizontal frames, and a plurality of support members extending downward from any position of the vertical frames, horizontal frames, and spacers in an adjustable length manner; A plurality of sheets to be stretched to close each space formed by the vertical frame, horizontal frame, and partition; and fasteners for fastening the sheet to the vertical frames, horizontal frames and partitions; The vertical frame, horizontal frame and partition frame have an open groove on the upper surface, The right end of one sheet and the left end of the adjacent other sheet are overlapped in the groove and held down by the fastener, The length of the support material is adjusted so that the space between the frame material and the ground is narrowed. A frame for a weed control sheet.

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