Aquarium Lid

Abstract

To provide an aquarium lid capable of suppressing slippage from an aquarium.SOLUTION: An aquarium lid 1 is so configured that the aquarium lid 1 includes a lid body 2, and the lid body 2 is recessed from a peripheral edge 21 of the lid body 2 toward a central part 22. According to the configuration, since the lid body 2 is recessed from the peripheral edge 21 toward the central part 22, the aquarium lid 1 can be fitted in an aquarium. This configuration can thus suppress slippage of the aquarium lid 1 from the aquarium.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a lid for an aquarium tank.

Background Art

[0002] Non-Patent Document 1 discloses a lid for an aquarium tank formed of flat glass placed on the side wall portion of the aquarium tank. When a person's hand touches the aquarium tank forcefully or the aquarium tank shakes due to an earthquake, etc., there is a high risk of the lid for the aquarium tank slipping off from the side wall portion of the aquarium tank. Further, when the lid for the aquarium tank is larger than the upper end of the side wall portion of the aquarium tank, the risk of the lid for the aquarium tank slipping off from the side wall portion of the aquarium tank becomes even higher.

Prior Art Documents

Patent Documents

[0003]

Non-Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Therefore, an object of the present invention is to provide a lid for an aquarium tank that can suppress slipping off from the aquarium tank.

Means for Solving the Problems

[0005] The lid for the aquarium tank includes a lid body, and the lid body is recessed from the peripheral edge portion toward the central portion of the lid body.

[0006] According to such a configuration, by being recessed from the peripheral edge portion toward the central portion, the lid for the aquarium tank can be fitted into the aquarium tank. Thereby, it is possible to suppress the lid for the aquarium tank from slipping off from the aquarium tank.

Brief Description of the Drawings

[0007] [Figure 1] Figure 1 is a perspective view of a tank lid and tank according to one embodiment. [Figure 2] Figure 2 is a plan view of a tank lid according to the same embodiment. [Figure 3] Figure 3 is a cross-sectional view taken along line III-III in Figure 2. [Figure 4] Figure 4 is a plan view showing the aquarium lid with a different size according to the same embodiment. [Figure 5] Figure 5 is a plan view showing a water tank lid according to the same embodiment with wiring holes provided. [Figure 6] Figure 6 is a plan view of a tank lid according to another embodiment. [Modes for carrying out the invention]

[0008] The aquarium lid according to this embodiment will be described below with reference to Figures 1 to 5. Note that in each figure (and Figure 6 as well), the dimensional ratios in the drawings do not necessarily match the actual dimensional ratios, and the dimensional ratios between the drawings do not necessarily match either.

[0009] As shown in Figure 1, the aquarium 10 to which the aquarium lid 1 according to this embodiment is attached is an aquarium for raising living organisms. Examples of living organisms include ornamental fish such as goldfish, medaka, and tropical fish.

[0010] The aquarium 10 comprises a bottom wall (not shown) and a side wall 11 that rises from the outer edge of the bottom wall and has an opening at its upper end. The bottom wall is formed in a circular shape in plan view, and the side wall 11 is formed in a substantially spherical shape. The opening is a circular opening in plan view. However, the bottom wall and side wall 11 are not limited to the above. For example, the bottom wall may be formed in a rectangular shape in top view, and the side wall 11 may be formed in a rectangular tube shape.

[0011] The aquarium lid 1 is attached to the aquarium 10 by being placed on the side wall portion 11. The side wall portion 11 may also be configured to include a lid receiving member (not shown). If a lid receiving member is provided, the aquarium lid 1 is placed on the flange portion of the lid receiving member. By attaching the aquarium lid 1 to the aquarium 10, it is possible to prevent organisms from jumping out of the aquarium 10 and water evaporation, and to prevent debris and other organisms from entering the aquarium 10 from outside.

[0012] The aquarium lid 1 is made of transparent resin. Its transparency allows light to enter the aquarium 10 through the lid 1, brightly illuminating the inside of the aquarium 10. Using resin as the material allows the aquarium lid 1 to be made into complex shapes, and also makes it easy for the purchaser of the aquarium lid 1 to modify it (e.g., cut it). Examples of resins include synthetic resins such as PS, ABS, and PC.

[0013] As shown in Figures 2 and 3, the aquarium lid 1 comprises a lid body 2. In this embodiment, the lid body 2 (or its peripheral edge 21) is formed in a circular shape in plan view, but is not limited to this. For example, the lid body 2 (or its peripheral edge 21) may be formed in a polygonal shape in plan view.

[0014] The lid body 2 is recessed from the peripheral edge 21 toward the central part 22. That is, the lid body 2 has an inclined portion 23 that connects the peripheral edge 21 and the central part 22 and slopes diagonally downward from the peripheral edge 21. In this embodiment, the central part 22 is formed in a circular shape in plan view, and the inclined portion 23 is formed in an annular shape that surrounds the central part 22 in plan view, but is not limited to this.

[0015] The vertical dimension of the lid body 2, that is, the height H1 from the upper end of the peripheral portion 21 to the lower end of the central portion 22, is preferably 5% to 25% of the horizontal dimension of the peripheral portion 21 (outer diameter D1 in this embodiment). By setting the height H1 to 5% or more of the outer diameter D1, a fitting clearance for the water tank 10 can be ensured. Also, by setting the height H1 to 25% or less of the outer diameter D1, the water tank lid 1 can be made less likely to come into contact with the water stored in the water tank 10.

[0016] The lid body 2 is provided with a plurality of annular stepped portions 3 surrounding the central portion 22. The stepped portions 3 are arranged on the inclined portion 23. In this embodiment, the stepped portions 3 are formed in an annular shape centered on the center line Lc of the aquarium lid 1, and the plurality of stepped portions 3 are arranged in a concentric annular shape. The spacing between adjacent stepped portions 3, 3 and the number of stepped portions 3 are appropriately set according to the lineup of aquarium sizes 10. That is, the spacing between adjacent stepped portions 3, 3 may be uneven or uniform. Note that the stepped portions 3 are not limited to the above. For example, the stepped portions 3 may be formed in an annular shape. Also, the lid body 2 may be configured without stepped portions 3.

[0017] The lid body 2 is provided with a plurality of first resectable portions 4 that allow the size of the lid body 2 to be changed. The first resectable portions 4 are formed in an annular shape surrounding the central portion 22 and are arranged on the peripheral portion 21 and the inclined portion 23. The size of the lid body 2 can be changed by cutting off the first resectable portions 4 (see Figure 4). In this embodiment, the shape of each first resectable portion 4 in side view is different because the spacing between adjacent stepped portions 3, 3 is uneven. Specifically, the shape of the first resectable portion 4 in side view is one of the following: a flat shape along the horizontal direction, an inclined shape inclined with respect to the horizontal direction, or a shape that includes both a flat shape and an inclined shape.

[0018] In this embodiment, the first removable portion 4 includes a plurality of first slits 41 formed in an arc shape centered on the center line Lc, and a plurality of first cut-out portions 42 formed between adjacent first slits 41, 41. The plurality of first slits 41 are arranged on a circle centered on the center line Lc. Note that the first removable portion 4 is not limited to the above. Further, the lid body 2 may be configured not to include the first removable portion 4.

[0019] The horizontal width W1 of the first slit 41 is preferably 2 mm to 5 mm. By setting the width W1 to 2 mm or more, the cutting edge of a cutting tool (for example, nippers) for cutting the first cut-out portion 42 can be inserted into the first slit 41. Also, by setting the width W1 to 5 mm or less, it is possible to prevent dust, organisms, etc. from entering the water tank 10 (see FIG. 1). By providing the first slit 41, air permeability to the water tank 10 can also be ensured.

[0020] The plurality of first cut-out portions 42 are arranged substantially evenly in the circumferential direction, and the first cut-out portions 42 provided in each first removable portion 4 are arranged in alignment so as to extend radially from the central portion 22. The circumferential direction is the direction in which the peripheral edge portion 21 extends. The circumferential length L1, thickness, and number of arrangements of the first cut-out portion 42 are appropriately set so that they can be cut by a cutting tool and the strength of the lid body 2 can be ensured.

[0021] The lid body 2 includes a plurality of second removable portions 5 in which a wiring through-hole 5a (see FIG. 5) can be provided in the lid body 2. The wiring through-hole 5a is a through-hole for passing wiring such as an air tube or a power cord. The second removable portion 5 is formed in a substantially square shape and is arranged between adjacent first slits 41, 41. The plurality of second removable portions 5 are arranged in alignment so as to extend radially from the central portion 22. By providing the plurality of second removable portions 5, the wiring through-hole 5a can be provided even when the size of the lid body 2 is changed by cutting the first removable portion 4 (see FIGS. 4 and 5).

[0022] In this embodiment, the second resectable portion 5 comprises a substantially L-shaped second slit 51, a third slit 52 that is symmetrical to the second slit 51, and a second resectable portion 53 formed between the second slit 51 and the third slit 52, between adjacent second resectable portions 5, 5, or on the peripheral portion 21. The second resectable portion 53 formed between the second slit 51 and the third slit 52 also serves as the first resectable portion 42. Note that the second resectable portion 5 is not limited to the above. Furthermore, the lid body 2 may be configured without the second resectable portion 5.

[0023] The horizontal width of the second slit 51 and the third slit 52 is preferably 2 mm to 5 mm, for the same reasons as for the first slit 41. The length, thickness, and number of the second cut sections 53 are set appropriately so that they can be cut by a cutting tool and the strength of the lid body 2 is ensured.

[0024] The aquarium lid 1 is equipped with a handle 6. The handle 6 is located in the central part 22. In a side view, the handle 6 is positioned lower than the peripheral edge 21. Preferably, the handle 6 is shaped to be easily grasped by human fingers. However, the handle 6 is not limited to the above. Furthermore, the aquarium lid 1 may be configured without a handle 6.

[0025] As described above, in this embodiment, the aquarium lid 1 comprises a lid body 2, and the lid body 2 is recessed from the peripheral edge 21 toward the central part 22.

[0026] With this configuration, the lid body 2 is recessed from the peripheral edge 21 toward the central part 22, allowing the aquarium lid 1 to be fitted onto the aquarium 10. This prevents the aquarium lid 1 from slipping off the aquarium 10. Furthermore, even if the aquarium lid 1 is horizontally larger than the side wall portion 11 of the aquarium 10, the aquarium lid 1 can still be fitted onto the aquarium 10, preventing the aquarium lid 1 from slipping off the aquarium 10.

[0027] Furthermore, as in the aquarium lid 1 of this embodiment, it is preferable that the lid body 2 has an annular stepped portion 3 surrounding the central portion 22.

[0028] With this configuration, the stepped portion 3 can be hooked onto the side wall portion 11 of the aquarium 10, further preventing the aquarium lid 1 from slipping off the aquarium 10.

[0029] Furthermore, as in the aquarium lid 1 according to this embodiment, it is preferable that the lid body 2 is provided with a removable portion (first removable portion 4) that allows the size of the lid body 2 to be changed, and that the removable portion (first removable portion 4) is formed in an annular shape surrounding the central portion 22.

[0030] With this configuration, the size of the aquarium lid 1 can be changed to match the size of the aquarium 10 by cutting off the cut-off portion (first cut-off portion 4). This prevents the aquarium lid 1 from sliding off the aquarium 10. In addition, it prevents the aquarium lid 1 from protruding horizontally from the upper end of the side wall portion 11 of the aquarium 10, thus preventing deterioration of the overall appearance of the aquarium 10.

[0031] Furthermore, as in this embodiment, it is preferable that the tank lid 1 is equipped with a handle 6, and that the handle 6 is positioned lower than the peripheral edge 21 when viewed from the side.

[0032] With this configuration, the handle 6 of the aquarium lid 1 can be made less visible, preventing the overall aesthetic deterioration of the aquarium 10 caused by the visible handle 6. Furthermore, by positioning the handle 6 lower than the periphery 21, multiple aquarium lids 1 can be stacked without taking up much space. This makes it easier to store and transport the aquarium lids 1.

[0033] It should be noted that the aquarium lid 1 is not limited to the configuration of the embodiment described above, nor is it limited to the effects and advantages described above. Furthermore, it goes without saying that the aquarium lid 1 can be modified in various ways without departing from the spirit of the present invention. For example, one or more of the configurations and methods described below may be arbitrarily selected and adopted in the configurations and methods of the embodiment described above.

[0034] (1) In this embodiment, the lid body 2 (and its peripheral edge 21) is formed in a circular shape in plan view, but is not limited to this. For example, as shown in Figure 6, the lid body 2 (and its peripheral edge 21) may be formed in a rectangular shape in plan view.

[0035] (2) In this embodiment, the first resectable portion 4 comprises a plurality of first slits 41 formed in an arc shape centered on the center line Lc, and a plurality of first resectable portions 42 formed between adjacent first slits 41, 41, but is not limited thereto. For example, the first resectable portion 4 may not have first slits 41, and the first resectable portions 42 may be formed in a resectable thin annular shape. [Explanation of Symbols]

[0036] 1: Aquarium lid, 2: Lid body, 21: Peripheral section, 22: Center section, 23: Sloping section, 3: Stepped section, 4: First cuttable section, 41: First slit, 42: First cuttable section, 5: Second cuttable section, 5a: Wiring pass-through hole, 51: Second slit, 52: Third slit, 53: Second cuttable section, 6: Handle, 10: Aquarium, 11: Side wall section

Claims

1. It has a lid body, The lid body is recessed from the peripheral edge toward the center of the lid body.

2. The aquarium lid according to claim 1 , wherein the lid body has an annular stepped portion surrounding the central portion.

3. The lid body has a removable portion that allows the size of the lid body to be changed. The aquarium lid according to claim 1 or 2, wherein the removable portion is formed in a ring shape surrounding the central portion.

4. Equipped with a handle, The aquarium lid according to any one of claims 1 to 3, wherein the handle is positioned lower than the peripheral edge portion in a side view.

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