Lid

Abstract

To provide a lid body that facilitates opening operation and is capable of preventing intrusion of rainwater and dust into a skeleton body.SOLUTION: A lid body 3 comprises a plurality of lid plates 10 whose front and rear ends are placed on edge sides of an opening part 2e. By arranging the plurality of lid plates 10 in a right-and-left direction so that end surfaces 10a, 10a in the longitudinal direction of them are brought into contact with or close to each other, the opening part 2e can be closed. A first region 30a, a third region 30c and a second region 30b continuing at least from the end surface 10a to an upper surface 10b in the surface of the lid plate 10 are provided with a water repellent layer 30 having water repellency.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a cover body for closing the top opening of a housing chamber that houses machines such as pumps installed in water distribution pipes, and a main body of a water storage tank, water distribution tank, etc., which are mainly installed outdoors. [Background technology]

[0002] Conventionally, examples of a main body having an open top include water tanks for storing water such as agricultural water, industrial water, and drinking water. This type of water tank can be either a sealed type or an open type depending on the scale of the facility and the installation location, and some open-top water tanks are closed with a lid for safety and sanitation reasons (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2004-196339 A (page 3, Figure 1) Summary of the Invention [Problem to be solved by the invention]

[0004] In the case of the open-type aquarium described in Patent Document 1, closing the top opening with a large lid requires high strength and increases the weight, making it difficult to open the lid when inspecting the inside of the aquarium.

[0005] Therefore, it is possible to form a lid using multiple plate-shaped members and line up these plate-shaped members to close the top opening, but this poses the problem that rainwater and dust accumulated on the top surface will fall through the gaps formed between the end faces of adjacent plate-shaped members, contaminating the stored water.

[0006] The present invention has been made in response to such problems, and aims to provide a lid that is easy to open and can prevent rainwater and dust from entering the main body of the container. [Means for solving the problem]

[0007] In order to solve the above problems, the lid of the present invention is A lid for closing an upper opening of a body main body that is generally rectangular in plan view, the top opening can be closed by arranging the plate-like members in a horizontal direction such that the longitudinal end faces of the plate-like members are in contact with or close to each other; The present invention is characterized in that a water-repellent layer having water repellency is provided on the surface of each of the plurality of plate-like members in a continuous region extending from at least the end face in the longitudinal direction to the upper surface. This makes it easier to open the lid by forming it from multiple plate-shaped members, and the water-repellent layers face each other on the longitudinal end faces of adjacent plate-shaped members, and the water-repellent layer is formed in a continuous area from these longitudinal end faces to the top surface.This means that rainwater and dust are less likely to accumulate near the end faces on the top surface due to the water-repellent effect, and are less likely to enter between the end faces of adjacent plate-shaped members, thereby preventing rainwater and dust from entering the inside of the main body of the structure.

[0008] The surface of the water-repellent layer provided on the longitudinal end surface may be a composite surface of a positive ion charged surface and a silicone water-repellent surface. According to this, a composite surface of a positive ion charged surface and a silicone water-repellent surface is formed on the surface of each of the adjacent end faces, thereby more effectively preventing rainwater and dust from entering between the end faces.

[0009] The longitudinal end faces may be flat surfaces. This makes it easier to bring the adjacent end faces into contact or close to each other in the longitudinal direction, and prevents rainwater and dust from entering between the end faces.

[0010] The plurality of plate-like members may be placed so as to be movable in the longitudinal direction. With this, as the plate-shaped member moves in the longitudinal direction, the friction generated by the sliding of adjacent end faces against each other makes it easier for the water-repellent layer provided on the end face to maintain a positive charge, thereby preventing rainwater and dust from entering between the end faces for a long period of time.

[0011] The end faces in the longitudinal direction may be inclined surfaces relative to each other. This increases the water-stopping effect by pressing the upper end face against the lower end face, and also increases the surface area of ​​the end face, i.e., the surface area of ​​the water-repellent layer, making it more difficult for rainwater and dust to penetrate between the end faces.

[0012] The longitudinal end faces may be recessed and fitted together. This increases the waterproofing effect due to the recess-projection fitting, and also increases the surface area of ​​the longitudinal end faces, i.e., the surface area of ​​the water-repellent layer, making it more difficult for rainwater and dust to penetrate between the end faces. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a perspective view showing a main body and a lid of a storage chamber according to an embodiment of the present invention. [Figure 2] FIG. 2 is a plan view showing the main body and the lid of FIG. 1. [Figure 3] 2. (a) is a cross-sectional view taken along line AA in FIG. 2, and (b) is a cross-sectional view taken along line BB in FIG. [Figure 4] (a) is an enlarged view of the main part of Figure 2(a), (b) is an enlarged view of the main part of (a), (c) is a diagram explaining the contact angle between rainwater and the surface, and (d) is a diagram explaining the water-repellent effect. [Figure 5] FIG. 2 is a diagram showing the ionic charge state of a water-repellent layer. [Figure 6] FIG. 10 is a view showing a cover plate according to a first modified example of the present invention. [Figure 7] FIG. 10 is a view showing a cover plate according to a second modified example of the present invention. [Figure 8] FIG. 10 is a view showing a cover plate according to a third modified example of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0014] A description will be given of a form for carrying out the lid body according to the present invention based on an embodiment. In the following description, the diagonally lower right side of Figure 1 is the front side of the main body of the storage chamber, and the diagonally upper left side is the rear side of the main body of the storage chamber. [Example]

[0015] As shown in Figures 1 and 2, the storage room 1 is a storage room that is mainly installed outdoors, for example, on farmland or its surrounding areas, and that stores machines such as pumps (not shown) that are installed in water supply pipes that distribute water to each farmland.

[0016] The storage chamber 1 is composed of a box-shaped main body 2, with a front wall 2a, a rear wall 2b, a left side wall 2c, a right side wall 2d, and a bottom wall (not shown) made of aluminum composite panels, and a cover 3 that closes the opening 2e. The lower part of the main body 2 is buried underground, with only the upper part exposed above ground. However, as long as the opening 2e is exposed above ground, the entire main body 2 may be buried underground or installed above ground. The main body 2 may also be made of synthetic resin or stainless steel panels.

[0017] As shown in FIGS. 2 to 4, the cover body 3 is made up of a plurality of (e.g., 11) cover plates 10. Each cover plate 10 has a predetermined thickness L1 (e.g., about 3 to 10 mm) and is made of a vertically elongated rectangular plate member in which the front-to-back dimension L3 is longer than the left-to-right dimension L2. The front-to-back dimension L3 is a length that allows the front and back ends to rest on the front and back edges of the opening 2e, i.e., on the upper surfaces of the front wall 2a and the rear wall 2b. In addition to the front and back ends, the left side of the cover plate 10 located on the left side rests on the upper surface of the left side wall 2c, and the right side of the cover plate 10 located on the right side rests on the upper surface of the right side wall 2d.

[0018] The plurality of cover plates 10 are arranged in the left-right direction so that the longitudinal end faces of each cover plate 10, i.e., the left and right end faces 10a, 10a, abut against each other, thereby enabling the opening 2e to be closed. Note that the left and right end faces 10a, 10a of each cover plate 10 do not necessarily have to abut against each other, and may be adjacent to each other. Furthermore, the left and right end faces 10a, 10a are formed as flat surfaces.

[0019] Reinforcing members 11 and 12 made of metal are fixed to the underside of the cover plate 10. The reinforcing members 11 and 12 are formed into a substantially L-shaped cross section by a mounting plate attached to the underside of the cover plate 10 and a hanging plate hanging downward from the mounting plate.

[0020] The reinforcing members 11 extend along the left and right end faces 10a, and the reinforcing members 12 extend in the left-right direction along the inner surfaces of the front wall 2a and the rear wall 2b, preventing the cover plate 10 from bending. The left reinforcing member 11a of the cover plate 10 arranged on the left side is arranged on the inner side (right side) of the end face 10a, and the right reinforcing member 11a of the cover plate 10 arranged on the right side is arranged on the inner side (left side) of the end face 10a.

[0021] Furthermore, restricting members 13 made of metal and having a generally L-shaped vertical cross section are fixed to the outside of the left and right reinforcing members 11a, 11a, and restricting members 14 made of metal and having a generally L-shaped vertical cross section are fixed to the outside of the front and rear reinforcing members 12, 12. The restricting members 13, 14 are formed into a generally L-shaped vertical cross section by a mounting plate attached to the underside of the cover plate 10 and a hanging plate hanging downward from the mounting plate.

[0022] These regulating members 13, 14 arranged at the front, back, left and right create a rectangular cylindrical regulating portion hanging down from the underside of the cover plate 10, so that when the front and back ends of the cover plate 10 are placed on the edge of the opening 2e, excessive sliding movement of the cover plate 10 in the front-back and left-right directions, i.e., positional misalignment, is regulated.

[0023] In addition, gaps S1 and S2 are provided between the hanging plates of these regulating members 13 and 14 and each wall portion, making it easier to fit the regulating members 13 and 14 of each cover plate 10 into the opening 2e, and allowing the cover plate 10 to slide slightly in the forward / backward and left / right directions.

[0024] In this embodiment, the reinforcing members 11, 12 and the restricting members 13, 14 are attached to the underside of the cover plate 10, but these do not necessarily have to be attached.

[0025] A downward U-shaped handle 16 is attached vertically to the front and rear sides of the cover plate 10, and can be used by pulling it upward, and when not in use, it retreats downward under its own weight.

[0026] Ring bolts 17 are fixed to the front and rear sides of the left and right walls 2c and 2d, and chains 18 are hung between these left and right ring bolts 17, 17. The chains 18 are placed on the top surface 10b of each cover plate 10 while being inserted through the handles 16, so that the cover plates 10 cannot be turned up by strong winds or easily removed from the main body 2.

[0027] 4(a) and 4(b), the cover plate 10 is made of a front surface member 20a and a back surface member 20b made of aluminum, and a core material 20c made of polyethylene and disposed between the front surface member 20a and the back surface member 20b, and has high rigidity and smoothness. The end surface 10a of the cover plate 10 is a cut surface formed by cutting the cover plate 10, so that the end surfaces of the front surface member 20a, the back surface member 20b, and the core material 20c that make up the cover plate 10 are exposed.

[0028] In this embodiment, the cover plate 10 is illustrated as being made up of a three-layer plate-like member consisting of a surface material 20a, a back material 20b, and a core material 20c, but the present invention is not limited to this and may be made up of a single metal plate or synthetic resin plate.

[0029] A water-repellent layer 30 is provided in a region of a generally L-shaped cross section that continues from the end face 10a to the top face 10b on the surface of each cover plate 10. More specifically, the water-repellent layer 30 has a first region 30a corresponding to the end face 10a of each cover plate 10, a second region 30b corresponding to the vicinity of the left and right sides of the top face 10b, and a third region 30c corresponding to the corners between the end face 10a and the top face 10b, and extends in the front-to-rear direction of the cover plate 10.

[0030] The water-repellent layer 30 is made of a silicone coating film coated with a nano-plasma coating (containing a special plasma component). Specifically, by applying the nano-plasma coating to the surface of the cover plate 10 (the base material), a positively charged layer is formed on the coating surface, i.e., the surface of the water-repellent layer 30, as shown in FIG. 5. In other words, the surface of the water-repellent layer 30 is a composite surface of a positively charged surface and a silicone water-repellent surface. Dust Y2 is less likely to adhere or accumulate on the surface of the water-repellent layer 30 due to the repulsion between the positive charges. Furthermore, the silicone coating film layer, which has anti-fouling and water-repellent properties, also makes it more difficult for rainwater Y1 and dust Y2 to adhere to the surface.

[0031] Furthermore, as shown in Figures 4(a) and (b), when the cover plates 10 are arranged in the left-right direction so that the left and right end faces 10a, 10a of each cover plate abut each other, the second region 30b of the water-repellent layer 30, which has low friction resistance, extends to the left and right sides of the boundary T on the upper surfaces 10b of adjacent cover plates 10, 10, making it difficult for rainwater Y1 and dust Y2 to remain at the boundary T between adjacent cover plates 10, 10.

[0032] Furthermore, as shown in Figure 4(b), a water-repellent layer 30 is provided from the third region 30c corresponding to the corner between the end face 10a and the top face 10b to the first region 30a corresponding to the end face 10a, and the water-repellent effect of the water-repellent layers 30 on both the left and right cover plates 10, 10 makes it difficult for rainwater Y1, dust Y2, etc. to enter the boundary T.

[0033] More specifically, as shown in Figure 4(c), when a water-repellent layer 30 is formed on the surface of the cover plate 10, for example, the contact angle θ of rainwater Y1 with the surface of the cover plate 10 becomes large (for example, contact angle θ = 90 degrees or more), and the rainwater Y1 becomes more likely to be repelled, so that the rainwater Y1 remains in a droplet-like state without spreading thinly.

[0034] 4(d), even if a minute gap occurs between the left and right end faces 10a, 10a at the boundary T, the water-repellent effect keeps the rainwater Y1 in droplet-like masses wider than the gap, making it difficult for the rainwater Y1 to fall onto the boundary T and preventing it from passing between the end faces 10a, 10a from the boundary T and falling into the interior of the main body 2. In addition, dust Y2 is prevented from falling onto the boundary T along with the rainwater Y1.

[0035] As described above, the lid body 3 as an embodiment of the present invention is composed of a plurality of lid plates 10 whose front and rear ends are placed on the edges of the opening 2e, and is capable of closing the opening 2e by arranging the lid plates 10 in the left-right direction so that the longitudinal end faces 10a, 10a of the lid plates 10 abut or are close to each other, and a water-repellent layer 30 having water-repellent properties is provided in the first region 30a, third region 30c, and second region 30b on the surface of each lid plate 10, which are continuous from at least the end face 10a to the top face 10b.

[0036] According to this, by configuring the lid body 3 with multiple lid plates 10, the operation of opening the lid body 3 is easier than opening a single large lid body. Furthermore, the water-repellent layers 30 are arranged on the end faces 10a, 10a of adjacent lid plates 10 facing each other, and the water-repellent layer 30 is formed in a continuous area from these end faces 10a to the top face 10b. As a result, rainwater Y1 and dust Y2 are less likely to accumulate near the left and right end faces 10a on the top face 10b due to the water-repellent effect, and are less likely to enter between the end faces 10a, 10a of adjacent lid plates 10, thereby preventing the rainwater Y1 and dust Y2 from entering the interior of the main body 2.

[0037] Therefore, even if the left and right edge portions of adjacent cover plates 10, 10 are not stacked one on top of the other, by simply arranging the end faces 10a, 10a so that they abut or are close to each other, the water-repellent effect can prevent rainwater Y1 and dust Y2 from falling from the boundary T, so the left and right dimension L2 of each cover plate 10 can be shortened, and even without opening all of the multiple cover plates 10, only some of the cover bodies can be partially opened, making it easy to check and maintain machines and the like housed inside the main body 2.

[0038] Furthermore, the surface of the water-repellent layer 30 provided in the first region 30a corresponding to the end face 10a is a composite surface of a positive ion charged surface and a silicone water-repellent surface, and by forming a composite surface of a positive ion charged surface and a silicone water-repellent surface on the surface of each of the adjacent end faces 10a, 10a, positively charged rainwater Y1 and dust Y2 are more effectively prevented from entering between the end faces 10a, 10a.

[0039] Furthermore, even if the positive charges on the surface of the water-repellent layer 30 decrease over time due to prolonged use, resulting in a mixture of positive and negative charges on the surface and a reduction in the effect of the positive electric field, simply wiping off the dirt adhering to the water-repellent layer 30 will restore the positive charges to a planar state on the surface of the water-repellent layer 30 due to friction, as shown in Figure 5, and a sufficient positive electric field will be formed, thereby increasing the repulsive action of the positive charges again, thereby maintaining the water-repellent effect with a simple procedure.

[0040] Furthermore, because the end faces 10a, 10a are configured as flat surfaces, adjacent end faces 10a, 10a can easily abut or come close to each other in the longitudinal direction, preventing rainwater Y1 and dust Y2 from entering between the end faces 10a, 10a. Furthermore, because the end faces 10a, 10a can easily slide against each other, for example, when the cover plate 10 is blown by wind or the main body 2 is vibrated by passing vehicles, friction occurs due to the sliding between the end faces 10a, 10a. This friction restores the positive charge in the first region 30a to a planar state, as described above, making it easier to maintain a positive electric field, thereby preventing rainwater Y1 and dust Y2 from entering between the end faces 10a, 10a for a long period of time.

[0041] Furthermore, because the multiple cover plates 10 are mounted so as to be movable in the longitudinal direction, as described above, when the cover plates 10 are blown by the wind or when the main body 2 vibrates due to the passing of vehicles, the cover plates 10 move forward and backward, causing friction between the adjacent end faces 10a, 10a, which makes it easier for the water-repellent layer 30 provided on the end faces 10a to maintain a positive charge, thereby preventing rainwater and dust from entering between the end faces for a long period of time. The sliding between the end faces 10a, 10a makes it easier to generate friction, making it easier to maintain a positive electric field.

[0042] Although the embodiments of the present invention have been described above with reference to the drawings, the specific configuration is not limited to these embodiments, and the present invention also includes modifications and additions that do not deviate from the gist of the present invention.

[0043] For example, in the above embodiment, a storage chamber in which a machine such as a pump is stored is applied as an example of a main body having an upper opening that is approximately rectangular in plan view, and a cover for the storage chamber is illustrated, but the present invention is not limited to this, and the main body is not limited to the above-mentioned storage chamber, and may be, for example, a main body such as a water tank that has an upper opening that is approximately rectangular in plan view and is capable of storing water.

[0044] In addition, in the above embodiment, the second region 30b of the water-repellent layer 30 is illustrated as being provided only near the left and right side edges on the upper surface 10b of the cover plate 10, but the present invention is not limited to this, and as shown in Figure 6, the second region 30b of the water-repellent layer 30 may be provided over the entire upper surface 10b of the cover plate 10.

[0045] In the above embodiment, the adjacent end faces 10a, 10a are vertical faces that are perpendicular to the top face 10b, but the present invention is not limited to this, and the end faces 10a, 10a may be inclined faces that are inclined with respect to the vertical face, as in the cover plate 10A as Modification 1 shown in Fig. 7. In this case, the upper end face 10a is pressed against the lower end face 10a from above, thereby enhancing the water-stopping effect, and the surface area of ​​the end face 10a, i.e., the surface area of ​​the water-repellent layer 30, is larger than when the end face 10a is a vertical face, making it more difficult for rainwater Y1 and dust Y2 to penetrate between the end faces 10a, 10a.

[0046] Furthermore, in the above embodiment, the adjacent end faces 10a, 10a are formed as flat surfaces, but the present invention is not limited to this. It is sufficient that the adjacent end faces 10a, 10a are fitted together in a concave-convex manner, as in the cover plate 10B of modified example 2 shown in Figure 8.

[0047] Specifically, as shown in Figure 8, the end face of the surface material 20a of the right-side cover plate 10B protrudes to the left beyond the end faces of the core material 20c and the back surface material 20b to form a step on the end face 10a, while the end faces of the core material 20c and the back surface material 20b of the left-side cover plate 10B protrude to the right beyond the end face of the surface material 20a to form a step on the end face 10a.

[0048] In addition to the first region 30a, the second region 30b, and the third region 30c, the water-repellent layer 30 is also provided in a horizontal fourth region 30d corresponding to the underside of the protrusion on the surface material 20a of the right-side cover plate 10B, and a horizontal fifth region 30e corresponding to the upper surface of the protrusion on the core material 20c of the left-side cover plate 10B.

[0049] In this way, the end faces 10a, 10a of adjacent cover plates 10 fit together vertically, so that the underside of the protrusion on the surface material 20a of the right cover plate 10B is pressed against the upper side of the protrusion on the core material 20c of the left cover plate 10B, thereby improving the water-stopping effect and increasing the surface area of ​​the longitudinal end faces 10a, i.e., the surface area of ​​the water-repellent layer 30, making it more difficult for rainwater Y1 and dust Y2 to penetrate between the end faces 10a, 10a. Furthermore, because the end faces 10a, 10a snake in the left-right direction, the underside between the end faces of adjacent surface materials 20a is blocked by the upper side of the core material 20c, so even if rainwater Y1 and dust Y2 penetrate through the boundary T, they are prevented from falling into the main body 2.

[0050] In the above embodiment, the water-repellent layer 30 is formed by a silicone coating, but the present invention is not limited to this and may be formed by using other coating materials such as an oil-based coating such as wax, a resin-based coating such as fluorine, polymer, or glass, a glass coating, etc. Furthermore, the water-repellent layer 30 is not limited to being formed by plasma coating, but may also be formed by applying a coating material or by adhering a water-repellent film or the like.

[0051] Furthermore, in the above embodiment, the top surface of the main body 2 is provided substantially horizontally, but for example, the top surface of the main body 2 may be sloped so that the cover 3 slopes downward from one end to the other when the opening 2e is closed, thereby improving safety by preventing people from easily climbing onto the cover 3. Furthermore, by arranging the cover plate 10 so that it slopes from one end to the other in the longitudinal direction, rainwater Y1 and dust Y2 that have entered between the end faces 10a, 10a are guided toward the lower side of the slope, making it less likely to fall into the main body 2. [Explanation of symbols]

[0052] 1 Containment Cell 2 Main body 2e opening (top opening) 3 Lid 10 Cover plate (plate-shaped member) 10a end face 10b above 11, 12 Reinforcing Components 13, 14 Regulations and Components 20a Surface Material 20b inner material 20c core material 30 Water-repelling layer 30a First Field 30b Second Field 30c Third Field 30d Fourth Domain 30e Fifth Domain S1 and S2 gaps T Realm Y1 Rainwater Y2 Dust

Claims

1. A lid for closing an upper opening of a body main body that is generally rectangular in plan view, the top opening can be closed by arranging the plate-like members in a horizontal direction such that the longitudinal end faces of the plate-like members are in contact with or close to each other; a water-repellent layer having water repellency is provided on a surface of each of the plurality of plate-like members in a continuous region extending from at least the end surface in the longitudinal direction to the upper surface, The surface of the water-repellent layer provided on the longitudinal end face is a composite surface of a positive ion charged surface and a silicone water-repellent surface.

2. The lid according to claim 1 , wherein the longitudinal end surfaces are flat surfaces.

3. 3. The lid according to claim 1, wherein the plurality of plate-like members are placed so as to be movable in the longitudinal direction.

4. The lid according to claim 1 , wherein the longitudinal end surfaces are inclined surfaces.

5. The lid according to claim 1 , wherein the longitudinal end faces are recessed and fitted together.

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