Ramp equipment

Abstract

The present invention aims to provide a ramp that is less prone to slippage, can be used repeatedly, and can be installed to match the size of the board. [Solution] A ramp device (10) for buffering the difference in height between the ground (3) and the plate-shaped member (5) when laying the plate-shaped member (5) on the ground (3), comprising a fitting projection (24) protruding from the side surface of the main body (20・30) of the ramp device (10), and a fitting groove (25) which is a groove in the main body (20・30) that fits with the fitting projection (24), and characterized in that multiple main bodies (20・30) can be connected by fitting the fitting projection (24) and the fitting groove (25).

Description

Technical Field

[0001] The present invention relates to a slope device that can be attached to a plate-shaped laying member such as an iron plate laid on the ground such as a road and can buffer steps.

Background Art

[0002] Conventionally, plate-shaped members such as iron plates have been laid on the ground roads and used as simple roads that can be easily and quickly constructed at construction sites, disaster recovery sites, etc.

[0003] For example, in Patent Document 1, after overlapping a rising flange along the outer peripheral edge of a square iron plate and a reinforcing material formed in a lattice shape by a number of reinforcing plates within an area surrounded by the rising flange on one side of the square iron plate, the two are integrally welded. Thereby, an invention is disclosed that can achieve weight reduction and cost reduction while maintaining strength not inferior to conventional general-purpose iron plates, and can significantly reduce incidental costs including transportation costs.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Disclosure of the Invention

Problems to be Solved by the Invention

[0005] However, conventional slope devices formed of resin around an iron plate are difficult to be repeatedly used due to plastic deformation. In addition, since the bell-shaped plate, which is a slope, is in a plate shape according to conventional tree species, there is a problem that it may shift and come off.

[0006] The present invention was made to solve the above problems and aims to provide a ramp that is less prone to slippage, can be used repeatedly, and can be installed to match the size of the board. [Means for solving the problem]

[0007] A ramp device that cushions the difference in height between the ground and the steel plate when laying a plate-shaped member on the ground, The ramp is characterized by having a projection that extends from the underside of the main body toward the ground. [Effects of the Invention]

[0008] Due to the features described above, the ramp device of the present invention prevents slippage by cushioning the difference in height with the ground and creating resistance with the ground through the protrusions. [Brief explanation of the drawing]

[0009] [Figure 1] This is a schematic diagram showing a steel plate laying device with a ramp attached according to an embodiment. [Figure 2] This is a schematic diagram showing a steel plate laying device with a ramp attached according to an embodiment. [Figure 3] This is a schematic diagram showing a ramp device according to an embodiment. [Figure 4] This is a schematic diagram showing a ramp device according to an embodiment. [Figure 5] This is a schematic diagram showing a ramp device according to an embodiment. [Figure 6] This is a schematic diagram showing a ramp device according to an embodiment. [Figure 7] This diagram shows how to lay a steel plate on the ramp device of the embodiment. [Modes for carrying out the invention]

[0010] The ramp device according to the present invention will be described in detail with reference to the drawings. The embodiments and drawings described below are illustrative of some embodiments of the present invention and are not intended to limit the invention to these configurations. They can be modified as appropriate without departing from the spirit of the invention.

[0011] First, the steel plate laying device 10 will be explained with reference to Figures 1 and 2. Figure 1 shows the steel plate laying device 10 as viewed from above. Figure 1 shows the steel plate 5 with transparency. Figure 2 shows an enlarged portion of the AA cross-sectional view. Figures 1 and 2 show the state in which the steel plate laying device 10, which is made by attaching the ramp body 30 and corner section 20 to the steel plate 5, is laid on the ground 3.

[0012] The steel plate laying device 10 consists of a steel plate 5, a ramp body 30, and a corner section 20, and is laid on the ground 3 with the steel plate 5 in contact with the sides 22 and receiving section 28 of the ramp body 30 and corner section 20.

[0013] Next, the ramp body 30 and the corner section 20 will be described in detail with reference to Figures 3 to 6. Figure 3 is a perspective view showing the corner section 20. Figure 3(A) is a perspective view of the corner section 20 from the back. Figure 3(B) is a perspective view of the corner section 20 from the front. Figure 4(A) is a perspective view of the ramp body 30 from the back. Figure 4(B) is a perspective view of the ramp body 30 from the front.

[0014] Figure 5(A) is a bottom view of the ramp body 30 as seen from the bottom side. Figure 5(B) is a partially enlarged perspective view of the ramp body 30 as seen from the back side. Figure 6(A) is a plan view of the ramp body 30 as seen from the top side. Figure 6(B) is a left side view of the ramp body 30 as seen from the left side.

[0015] The corner part 20 shown in FIG. 3 is attached to the four corners of the iron plate 5. The corner part 20 includes a slope part 21 that slopes toward the surface of the iron plate 5. With this slope part 21, it is possible for a vehicle or the like to pass over the iron plate 5 without a step. The slope part 21 is provided with a horizontal groove 23, which is two grooves, in the horizontal direction.

[0016] Also, above the slope part 21, there is a colored part 11 in which a circular groove is colored. The colored part 11 is colored with yellow, a phosphorescent paint, or the like to enhance visibility. On the back surface of the slope part 21, buffer grooves 33, which are two grooves, are formed. The buffer grooves 33 further absorb the impact of a vehicle or the like.

[0017] Also, the corner part 20 is provided with three receiving parts 28 for receiving the iron plate 5. The receiving part 28 includes a corner protrusion part 35 in a protruding shape along the corner. Also, at the end of the receiving part 28, there is a protrusion part 37 in a protruding shape. The iron plate 5 is received by the corner protrusion part 35 and the protrusion part 37.

[0018] The receiving part 28 is provided with an open opening part 26 and includes a reverse protrusion part 27 that protrudes toward the ground. This opening part 26 buffers against the unevenness of the ground 3 and prevents the entire iron plate laying tool 10 from shifting. Also, further, a resistance with the ground 3 is generated by the reverse protrusion part 27, preventing the entire iron plate laying tool 10 from shifting.

[0019] As shown in FIG. 3(A), on the side surface of the corner part 20, there is a fitting protrusion part 24 that protrudes in a T shape when viewed from the plane. Also, on the opposite side surface, there is a fitting groove 25 that fits with the fitting protrusion part 24. With the fitting protrusion part 24 and the fitting groove 25, it is possible to easily detach and connect with a slope main body 30, which will be described later. Note that the fitting groove 25 may be provided not only on the back surface but also on the main body, and the back surface is better. In the case of the back surface, it is less likely to come off due to the load from above.

[0020] Next, referring to FIGS. 4 to 6, the slope main body 30 will be described. Parts having the same structure or function as the above-described corner part 20 are given the same reference numerals, and the description thereof is omitted. The ramp body 30 is integrally formed with multiple ramp sections 21 and receiving sections 28, and can be appropriately changed depending on the size of the steel plate 5. In this embodiment, it is equipped with 10 ramp sections 21 and receiving sections 28.

[0021] As shown in Figures 5 and 6, the reverse projection 27 is provided with multiple second anti-slip projections 29 on its back surface to prevent slippage. In addition, the receiving portion 28 is also provided with multiple first anti-slip projections 39 on its back surface to prevent slippage. The first anti-slip projections 39 or the second anti-slip projections 29 prevent the entire steel plate laying device 10 from slipping.

[0022] The ramp body 30 and corner section 20 shown in this embodiment are made of rubber, and the following types of rubber can be used. For example, styrene-butadiene rubber (SBR), natural rubber (NR), butyl rubber (IIR), nitrile rubber (NBR), ethylene-propylene rubber (EPDM), chloroprene rubber (CR), urethane rubber (PUR), silicone rubber (SI), and fluororubber (FPM) are examples, but the invention is not limited to these, and any rubber product will suffice.

[0023] By using a soft material for the ramp body 30 and corner section 20 in this way, the material is resistant to plastic deformation and maintains its elasticity, allowing for repeated use.

[0024] As shown in Figure 7, when the steel plate 5 is installed on the ground 3, the multiple inverted protrusions 27 create resistance with the unevenness of the ground 3, preventing the entire steel plate laying device 10 from shifting. Furthermore, the second anti-slip protrusion on the back surface of the inverted protrusions 27 creates resistance with the ground, further reinforcing the prevention of shifting.

[0025] Although the inverted projection 27 is provided on the receiving portion 28, it may also be provided on the slope portion 21, as long as a protruding portion is provided extending from the slope body 30 and the corner portion 20 toward the ground. The more inverted projections 27 there are, the more resistance is generated and the greater the sliding effect, but one is sufficient.

[0026] (Technical features) The following are some examples of the technical features of this embodiment, shown in parentheses, but are not particularly limited. These are just examples, and the effects that can be expected from these characteristics will also be described.

[0027] <Feature 1> A ramp device (for example, a steel plate laying device 10) that buffers the difference in height between the ground and the plate-shaped member (for example, a steel plate laying device 10) when laying a plate-shaped member (for example, a steel plate 5) on the ground (for example, a steel plate 3), The ramp device is characterized by having a projection (for example, mainly an inverted projection 27) that protrudes toward the ground from the back surface of the main body of the ramp device (for example, mainly a corner portion 20 or the ramp body 30).

[0028] Due to the features described above, the ramp device cushions the difference in height with the ground, while the protrusions create resistance against the ground, thereby preventing slippage.

[0029] <Feature 2> The main body is characterized by being formed from a soft material (for example, mainly styrene-butadiene rubber (SBR), natural rubber (NR), etc.). These features allow for repeated use, improve adhesion to the ground, and further prevent slippage.

[0030] <Feature 3> The main body is characterized by having the projection on the receiving portion (for example, mainly the receiving portion 28) that receives the iron plate. Due to the above features, by installing it on the load-receiving part of a plate-shaped member such as a steel plate, it faces the ground and generates resistance, thus further preventing slippage.

[0031] <Feature 4> The receiving portion is characterized by having multiple openings (for example, mainly opening 26) and a projection that protrudes from the opening toward the ground. Due to these characteristics, applying the feature to multiple locations will generate even more resistance, making it possible to prevent slippage to the greatest extent possible.

[0032] <Feature 5> The present invention is characterized by having an uneven anti-slip portion (for example, mainly a second anti-slip projection 29) on the back surface of the aforementioned projection. Due to the above features, the present invention can generate even more resistance and further prevent slippage.

[0033] <Feature Point 6> A ramp device (for example, a steel plate laying device 10) that buffers the difference in height between the ground and the plate-shaped member (for example, mainly the ground 3) when laying the plate-shaped member on the ground (for example, mainly the ground 3), A fitting projection (for example, mainly a fitting projection 24) protruding from the side of the main body of the ramp (for example, mainly a corner section 20 or the ramp body 30), The main body is provided with a fitting groove portion (fitting groove 25) which is a groove that fits with the fitting projection, The device is characterized by the ability to connect multiple main bodies by fitting the fitting projection and the fitting groove together.

[0034] Due to the characteristics described above, conventional products simply consist of relatively short slopes arranged side by side, making them prone to shifting, especially in areas with uneven surfaces and low surface pressure. This invention improves upon that by connecting the slope components together, the entire integrated slope component fits under the steel plate even if there are partial unevennesses on the installation surface, making it less likely to shift. Furthermore, multiple units can be connected to accommodate various sizes. In addition, the units can be easily attached and detached, allowing for quick and easy installation and removal. [Industrial applicability]

[0035] Regarding the industrial applications of the ramp device of the present invention, it can be used not only on general roads and expressways but also by being laid on roads within factories and facilities. Furthermore, it can be appropriately applied to areas with uneven ground, such as construction sites and building sites. [Explanation of Symbols]

[0036] 3...Ground, 5...Steel plate, 10...Steel plate laying equipment, 20...Corner section, 26...Opening, 27...Inverted projection, 28...Receiving part, 29...Second anti-slip projection, 30...Slope body.

Claims

1. A ramp device that cushions the difference in height between the ground and the plate-shaped member when laying the plate-shaped member on the ground, A ramp device characterized by having a projection that extends from the underside of the ramp device's main body toward the ground.

2. The ramp device according to claim 1, characterized in that the main body is formed from a soft material.

3. The ramp device according to claim 1, characterized in that the projection is provided on the receiving portion of the main body that receives the plate-shaped member.

4. The ramp device according to claim 3, characterized in that it has openings in a plurality of the receiving portions, and the protrusions protruding from the openings toward the ground.

5. The ramp device according to claim 1, characterized in that the back surface of the projection is provided with an uneven anti-slip portion.

6. A ramp device for cushioning the difference in height between the ground and the plate-shaped member when laying the plate-shaped member on the ground, The fitting projection protruding from the side of the main body of the ramp, The main body is provided with a fitting groove portion which is a groove that fits with the fitting projection, A ramp device characterized in that multiple main bodies can be connected by fitting the fitting projection and the fitting groove.

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