Leaf accumulation device

The leaf collection device addresses the loss of fallen leaves by efficiently collecting and decomposing them to maintain soil and water retention, supporting vegetation and biodiversity.

JP7788096B1Active Publication Date: 2025-12-18MORISHO LLC
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Patent Information

Application Number
JP2025133909
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2025-07-23
Publication Date
2025-12-18
Estimated Expiration
2045-07-23

AI Technical Summary

Technical Problem

The loss of fallen leaves due to heavy rains and deer feeding leads to erosion, reduced vegetation, and decreased water retention capacity, threatening biodiversity and water resource conservation.

Method used

A leaf collection device with multiple introduction sections and outflow prevention mechanisms, allowing efficient collection and decomposition of leaves to create soil, reduce running water force, and retain rainwater.

Benefits of technology

The device effectively collects and decomposes leaves over time, creating soil for vegetation maintenance, reducing water runoff, and enhancing water retention, while being easily installable over large areas.

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Abstract

In recent years, global warming has caused the temperature of the earth's surface to rise, resulting in the loss of vegetation covering the surface. As the exposed ground temperature rises, the surface comes into direct contact with the hot air, causing moisture to evaporate and resulting in the loss of moisture on the surface. [Solution] The leaf collection device of the present invention solves the above problem by comprising a leaf collection device having multiple rows of rectangular introduction holes in the horizontal and vertical directions that introduce fallen leaves using multiple vertical pieces arranged at predetermined intervals in the horizontal direction and multiple horizontal pieces arranged at predetermined intervals in the vertical direction that intersect the vertical pieces.
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Description

[Technical Field]

[0001] The present invention relates to a leaf collecting device. [Background technology]

[0002] In recent years, heavy rains have been frequent due to abnormal weather caused by global warming, and the large amounts of rainwater flowing down the slopes have washed away fallen leaves and eroded the ground surface, leaving bare areas without grass or trees. In an environment without vegetation on the ground surface, there is nothing to hold the fallen leaves in place, and they are blown down the slopes by the wind, which is thought to be a cause of the decrease in fallen leaves that protect the ground surface. Furthermore, the deer population is increasing across a wide range of forests in Japan, and the pressure from deer feeding is causing a decline in grass and tree buds. These effects are putting rare species such as mountain wildflowers at risk of extinction, and it is thought that these are causing a decline in plants such as grass and trees, as well as a decrease in fallen leaves that protect the ground surface. Traditionally, the main role of fallen leaves has been to decompose over a long period of time and create soil that is essential for maintaining vegetation. In addition, they also have a major impact on the water resource conservation of the entire forest by reducing the force of running water on the ground surface and maintaining the water retention capacity of the ground surface by trapping rainwater among the fallen leaves. In recent years, global warming has caused the temperature of the earth's surface to rise, resulting in the loss of vegetation covering the surface. As the exposed ground temperature rises, the surface comes into direct contact with the hot air, causing moisture to evaporate and resulting in the loss of moisture on the surface. The loss of leaves and plants is thought to affect the maintenance of biodiversity in forests and slopes and also global warming. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention has been made to solve the above problems, and aims to provide a leaf-collecting device that can decompose fallen leaves over a long period of time to create soil that is essential for maintaining vegetation, as well as reduce the force of running water on the ground surface and retain rainwater among the fallen leaves, thereby maintaining the water-retaining capacity of the ground surface. [Means for solving the problem]

[0005] In order to solve the above problem, the leaf collection device of the present invention is characterized by comprising: a first leaf introduction section which forms the surface of the leaf collection device, and which has multiple rows of rectangular introduction holes in the horizontal and vertical directions for introducing leaves using multiple vertical pieces arranged at predetermined intervals in the horizontal direction and multiple horizontal pieces arranged at predetermined intervals in the vertical direction that intersect the vertical pieces; a second leaf introduction section which is formed at the upper end of the first leaf introduction section and forms the upper surface of the leaf collection device; a first leaf outflow prevention section which is formed by bending downward the vertical piece located at the lower end of the first leaf introduction section and forms the lower surface of the leaf collection device, and prevents fallen leaves introduced from the first and second leaf introduction sections from flowing out of the leaf accumulation section formed inside the leaf collection device; and a second leaf outflow prevention section which is formed by bending downward horizontal pieces that protrude more than the vertical pieces located at both ends of the first leaf introduction section, and forms both side surfaces of the leaf collection device, and prevents fallen leaves introduced from the first and second leaf introduction sections from flowing out. Furthermore, it is desirable that the leaf collection device of the present invention has a third leaf introduction section on the surface of the leaf collection device, which is formed by cutting the vertical piece that constitutes the introduction hole, bending the second leaf introduction section side downward, and bending the leaf outflow prevention section side upward. Furthermore, it is desirable that the leaf collection device of the present invention is configured so that multiple adjacent leaf collection devices can be connected to each other by a connecting means having recesses into which the edge of the second leaf introduction section, the edge of the first leaf outflow prevention section, and the edge of the second leaf outflow prevention section engage. Furthermore, it is desirable that the vertical pieces in the leaf collecting device of the present invention are provided below the horizontal pieces. [Effects of the Invention]

[0006] The leaf collecting device of the present invention comprises a first leaf introduction section which forms the surface of the leaf collecting device and which has a plurality of rectangular introduction holes arranged in the horizontal and vertical directions, the rectangular introduction holes being formed by a plurality of vertical pieces arranged at predetermined intervals in the horizontal direction and a plurality of horizontal pieces arranged at predetermined intervals in the vertical direction and intersecting the vertical pieces, and which introduce leaves; a second leaf introduction section which is formed at the upper end of the first leaf introduction section and which forms the upper surface of the leaf collecting device; and a second leaf introduction section which is formed by bending downward the vertical pieces located at the lower end of the first leaf introduction section and which forms the lower surface of the leaf collecting device, and the fallen leaves introduced from the first and second leaf introduction sections are collected by the fallen leaves formed inside the leaf collecting device. The device is characterized by having a first leaf outflow prevention section that prevents fallen leaves from flowing out of the accumulation section, and a second leaf outflow prevention section that is formed by bending downward the horizontal pieces that protrude more than the vertical pieces located at both ends of the first leaf introduction section, forming both sides of the leaf collection device, and that prevents fallen leaves introduced from the first and second leaf introduction sections from flowing out.Therefore, it has the effect of providing a leaf collection device that can decompose fallen leaves over a long period of time to create soil that is essential for maintaining vegetation, as well as reducing the force of running water flowing on the ground surface and retaining rainwater between the leaves, thereby maintaining the water retention capacity of the ground surface. Furthermore, as in claim 2, a third leaf introduction section is provided on the surface of the leaf collection device by cutting the vertical piece that constitutes the introduction hole, bending the second leaf introduction section side downward, and bending the leaf outflow prevention section side upward, which has the effect of enabling fallen leaves to be collected efficiently. Furthermore, as in claim 3, the leaf collecting device is configured so that a plurality of adjacent leaf collecting devices can be connected by connecting means having recesses in which the edges of the second leaf introducing portion, the first leaf outflow prevention portion, and the second leaf outflow prevention portion can engage, which has the effect of enabling the leaf collecting devices to be connected and easily installed over a wide area, and also has the effect of preventing leaves from outflowing. Furthermore, as in claim 4, when the vertical pieces are placed below the horizontal pieces, fallen leaves can be prevented from sliding down the vertical pieces, compared to when the vertical pieces are placed above the horizontal pieces, and this has the effect of allowing fallen leaves to be introduced efficiently from the first and third leaf introduction sections. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a perspective view showing the appearance of a leaf collecting device of the present invention. [Figure 2] FIG. 4 is an external perspective view of another embodiment of the leaf collecting device of the same. [Figure 3] A diagram showing the installation status of the leaf collection device. DETAILED DESCRIPTION OF THE INVENTION

[0008] 1 to 3, the leaf collecting device 1 includes a first leaf introduction section 5, which is formed on the surface of the leaf collecting device 1, and which has a plurality of rectangular introduction holes 4 arranged in the horizontal and vertical directions, each of which is made up of a plurality of vertical pieces 2 arranged at predetermined intervals in the horizontal direction and a plurality of horizontal pieces 3 arranged at predetermined intervals in the vertical direction and intersecting the vertical pieces 2, and which introduces leaves; a second leaf introduction section 6, which is formed by bending downward the vertical piece 2 that protrudes beyond the horizontal piece 3a located at the upper end of the first leaf introduction section 5 and which constitutes the upper surface of the leaf collecting device 1; and a second leaf introduction section 6, which is formed by bending downward the vertical piece 2 that protrudes beyond the horizontal piece 3b located at the lower end of the first leaf introduction section 5, and which constitutes the upper surface of the leaf collecting device 1. The leaf fallen collecting device 1 is provided with a first leaf outflow prevention section 8 formed by bending downward a horizontal piece 3 that protrudes more than the vertical pieces 2 located at both ends of the first leaf fallen introducing section 5, forming the underside of the leaf fallen collecting device 1 and preventing the leaves introduced from the first leaf fallen introducing section 5, the second leaf fallen introducing section 6, and the third leaf fallen introducing section 10 from outflowing from the leaf fallen collecting section 7. The edges of the second leaf fallen introducing section 6, the first leaf outflow prevention section 8, and the second leaf outflow prevention section 9 are connected by a first connecting member 11.

[0009] The third leaf introduction section 10 is arranged in a row horizontally, and to create a wide opening, the vertical piece 2 on the second leaf introduction section 6 side is bent downward to form a lower bent section 2a, and the vertical piece 2 on the leaf outflow prevention section 8 side is bent upward to form an upper bent section 2b. The edges of the lower bent section 2a and the upper bent section 2b are connected by horizontal pieces 3. The bending position may be the center of the vertical piece 2, and by changing the bending position, the opening area of ​​the third leaf introduction section 10 can be adjusted to correspond to the type of fallen leaves. Of the horizontal pieces 3 that serve as the starting points for the lower bent section 2a and the upper bent section 2b, the centrally located horizontal pieces 3 are connected by a second connecting member 12 and are integrated.

[0010] As shown in Figure 2, the surface of the leaf collection device 1 is provided with a third leaf introduction section 10, which is formed by cutting the vertical piece 2 that constitutes the introduction hole 4, bending the second leaf introduction section 6 side downward, and bending the leaf outflow prevention section 8 side upward.If the material is metal, it has the advantage of being easy to cut and bend on site.

[0011] The third leaf introduction sections 10 may be arranged in a row in the horizontal direction as shown in Figure 1, or may be arranged in places as shown in Figure 2. Arranging the third leaf introduction sections 10 in a row in the horizontal direction has the effect of efficiently introducing fallen leaves. Also, as shown in Figure 2, the third leaf introduction sections 10 arranged in places have the effect of being superior in terms of strength.

[0012] The vertical edge 13 and horizontal edge 14 that form the edge of the surface of the leaf collection device 1 are made of reinforcing material that is thicker than the vertical edge 2 and horizontal edge 3, and the vertical edge 13 and horizontal edge 14 are bent downward to form a stake portion 15 that protrudes downward beyond the first connecting member 11, and by driving the stake portion 15 into the ground, the leaf collection device 1 is prevented from moving due to rainwater or wind.

[0013] The leaf collection device 1 is designed so that multiple adjacent leaf collection devices 1 can be connected together using a connecting means 17 that has a recess 16 formed therein into which the end edge 2a of the vertical piece 2 that constitutes the second leaf introduction section 6 and the end edge 2c of the vertical piece 2 that constitutes the first leaf outflow prevention section 5 engage.

[0014] Adjacent leaf collecting devices 1 are connected by connecting means 19 having recesses 18 formed therein, into which the end edges 3c of the horizontal pieces 3 constituting the second leaf outflow prevention portions 9 engage.

[0015] In order to make it easier to pack a plurality of leaf collecting devices 1, the vertical pieces 3 are placed on the same plane as the horizontal pieces 4 or the vertical pieces 3 are placed above the horizontal pieces 4, but the vertical pieces 3 may also be placed below the horizontal pieces 4.

[0016] The leaf collection device 1 is made of thin metal or synthetic resin material or netting, and when the size of the introduction hole 4 is set to 5 to 10 centimeters in length and width, taking into consideration transportation to the construction site, the size of the leaf collection device 1 is preferably 100 to 150 centimeters in length, 50 to 100 centimeters in width, 10 to 30 centimeters in height, and 10 centimeters in length for the stake 15, but by reducing the size of the introduction hole 4 and cutting the vertical pieces 2 and horizontal pieces 3 on site, the introduction hole 4 can be made to a size appropriate for the size of the leaves. In the case of netting, the introduction hole 4 can be formed by adjusting the height of the supporting stakes.

[0017] Next, we will explain how to use the leaf collection device of the present invention.The leaf collection device 1 is installed in places where there are no leaves around the tower after construction of the tower has been completed, or where the leaves have been washed away by rain or blown away by wind.The device can be installed one row at a time, either vertically or horizontally, depending on the terrain. [Explanation of symbols]

[0018] 1. Leaf collection device 2 vertical strips 3 horizontal pieces 4 Introduction hole 5. First introduction to fallen leaves 6. Second Introduction to Leaf Fall 7 Fallen leaf accumulation area 8 First leaf runoff prevention section 9 Second leaf runoff prevention section

Claims

1. A leaf collection device characterized by comprising: a first leaf introduction section which forms the surface of the leaf collection device, and which has multiple rows of rectangular introduction holes in the vertical and horizontal directions for introducing leaves using multiple vertical pieces arranged at predetermined intervals in the horizontal direction and multiple horizontal pieces arranged at predetermined intervals in the vertical direction and intersecting the vertical pieces; a second leaf introduction section which is formed at the upper end of the first leaf introduction section and forms the upper surface of the leaf collection device; a first leaf outflow prevention section which is formed by bending downward the vertical piece located at the lower end of the first leaf introduction section and forms the lower surface of the leaf collection device, and prevents fallen leaves introduced from the first and second leaf introduction sections from flowing out of the leaf accumulation section formed inside the leaf collection device; and a second leaf outflow prevention section which is formed by bending downward horizontal pieces protruding beyond the vertical pieces located at both ends of the first leaf introduction section, and forms both side surfaces of the leaf collection device, and prevents fallen leaves introduced from the first and second leaf introduction sections from flowing out.

2. A leaf collection device as described in claim 1, wherein a third leaf introduction section is provided on the surface of the leaf collection device by cutting the vertical piece that constitutes the introduction hole, bending the second leaf introduction section side downward, and bending the leaf outflow prevention section side upward.

3. A leaf collection device as described in claim 1, in which multiple adjacent leaf collection devices are connected by a connecting means having a recess into which the end edges of the second leaf introduction section, the first leaf outflow prevention section, and the second leaf outflow prevention section engage.

4. 2. The leaf collecting device according to claim 1, wherein the vertical pieces are provided below the horizontal pieces.

Citation Information

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