JP7235311B2 - aquarium cleaning tool - Google Patents

Description

The present invention has an outer unit arranged outside the wall surface of the water tank and an inner unit arranged inside the wall surface of the water tank. The present invention relates to a water tank cleaning tool for cleaning the inside.

A device disclosed in Patent Document 1 below is known as such a water tank cleaning tool. The device comprises an inner component (inner unit) and an outer component (outer unit). When the outer component is moved along the aquarium window, the inner component follows the movement under the influence of the magnetic force.

The inner component is composed of two segments, in which the magnets are placed. A caul plate is provided within the segment to stiffen the segment.

Japanese Patent Publication No. 2002-534067

Segments of the above inner components are made of a hard material and can be moved without problems when the wall surface of the tank is flat. cannot properly clean the walls.

Therefore, it is conceivable to form the segment (body portion) that accommodates the permanent magnet with a flexible material. However, when the segments are made of a flexible material, there is a possibility that water will enter through the gaps due to the deformation of the segments during cleaning, causing performance deterioration and rusting of the permanent magnets.

SUMMARY OF THE INVENTION An object of the present invention is to provide a water tank cleaning tool capable of suppressing deterioration of permanent magnets even when the tool is flexible.

In order to solve the above problems, the aquarium cleaning tool according to the present invention includes:
An outer unit arranged outside the wall surface of the water tank and an inner unit arranged inside the wall surface of the water tank are provided, and the inside of the wall surface of the water tank is cleaned by making the inner unit follow the movement of the outer unit by magnetic force. A water tank cleaning tool,
The inner unit is
a main body having flexibility and having an accommodating portion for accommodating a permanent magnet;
a flexible cover member provided on the front surface and the back surface of the main body;
and a waterproof means disposed between the cover member and the permanent magnet for waterproofing the permanent magnet.

Actions and effects of such a configuration will be described. According to this configuration, the main body that constitutes the inner unit has flexibility, and the permanent magnet is housed therein. Cover members are arranged on both front and back surfaces of the main body to seal the permanent magnets inside. Furthermore, a waterproof means is provided between the cover member and the permanent magnet. As a result, it is possible to prevent water from entering the accommodation portion in which the permanent magnet is accommodated. Therefore, it is possible to provide a water tank cleaning tool capable of suppressing deterioration of the permanent magnet even if it has flexibility.

The waterproof means according to the present invention is preferably a waterproof sheet placed on the surface of the permanent magnet. As a result, it is possible to block the accommodation portion with the waterproof sheet and suppress the intrusion of water.

The waterproof means according to the present invention is preferably a waterproof coating formed on the surface of the permanent magnet. This can prevent water from adhering to the surface of the permanent magnet.

The perspective view which shows a state when using a water-tank cleaning tool. Appearance perspective view showing the configuration of the water tank cleaning tool An exploded perspective view of an inner unit that constitutes the water tank cleaning tool. An exploded perspective view of an outer unit that constitutes the water tank cleaning tool. Cross-sectional view of the inner unit that constitutes the water tank cleaning tool An exploded perspective view of an inner unit of a water tank cleaning tool according to a second embodiment. Sectional drawing of the inner unit which concerns on 2nd Embodiment

A preferred embodiment of the water tank cleaning tool according to the present invention will be described. FIG. 1 is a perspective view showing how the water tank cleaning tool is used. FIG. 2 is an external perspective view showing the configuration of the water tank cleaning tool. FIG. 3 is an exploded perspective view of an inner unit that constitutes the water tank cleaning tool. FIG. 4 is an exploded perspective view of an outer unit that constitutes the water tank cleaning tool. FIG. 5 is a cross-sectional view of an inner unit that constitutes the water tank cleaning tool. INDUSTRIAL APPLICABILITY The aquarium cleaning tool according to the present invention is suitably used in an aquarium (such as a goldfish bowl) having a curved inner wall.

As shown in FIGS. 1 and 2, the water tank cleaning tool is composed of an inner unit 1 and an outer unit 2. As shown in FIG. The inner unit 1 is used inside the wall surface of the water tank, and the outer unit 2 is used (operated) outside the wall surface of the water tank. A permanent magnet is incorporated in each unit, and when the outer unit 2 is operated, the inner unit 1 follows and moves due to the magnetic force. As a result, the wall surface is cleaned with the felt formed in the inner unit 1 .

As shown in FIG. 3, the inner unit 1 is composed of a main body 10, a permanent magnet 11, a waterproof sheet 12 (corresponding to waterproof means), and a cover member 13. As shown in FIG. Although the main body 10 has a square shape in plan view, the shape is not limited to this, and a rectangular shape or other shapes may be adopted.

A cylindrical hole 10a (corresponding to an accommodation portion) is formed in the body portion 10, and a permanent magnet 11 is accommodated therein. A flexible material is used for the main body 10, and examples thereof include sponge such as EVA foam, polyethylene foam, rubber sponge, and urethane foam.

The permanent magnet 11 has a cylindrical shape and is shaped to be accommodated in the hole 10a. Examples of magnetic materials include alnico magnets, ferrite magnets, and neodymium magnets.

The waterproof sheets 12 are arranged on both sides of the permanent magnet 11 to prevent the permanent magnet 11 from coming into contact with water. This suppresses performance deterioration and rust generation of the permanent magnet 11 . The waterproof sheet 12 is fixed to the surface of the main body 10 with an adhesive or the like. When using an adhesive, an epoxy resin adhesive or an acrylic adhesive can be used. A thin waterproof sheet 12 is used and has flexibility.

The cover member 13 has flexibility and is attached to both front and back surfaces of the main body 10 . The cover member 13 is made of a material such as nylon or polyester, and has a function of scraping off deposits such as moss adhering to the inner wall of the water tank. The cover member 13 is attached to the body portion 10 using double-sided tape or the like.

As shown in FIG. 4, the outer unit 2 includes a body case 20, permanent magnets 21, and a cover member 22. As shown in FIG. The body case 20 includes an operation portion 20a, a body portion 20b, and a recess 20c. The main body case 20 is made of resin and formed of a hard material. The operation portion 20a is square in plan view. The body portion 20b is also square in plan view, and its size is the same as that of the body portion 10 . The operation part 20a has a square shape slightly larger than that of the main body part 20, in consideration of operability.

The recessed portion 20c functions as an accommodation portion in which the permanent magnet 21 is accommodated. The cover member 22 is attached to the body portion 20b with double-sided tape or the like. The material of the cover member 22 can be the same material as the cover member 13 of the inner unit 1 .

As can be seen from the cross-sectional view shown in FIG. 5, the waterproof sheet 12 closes the containing portion 10a, which can prevent water from entering the containing portion 10a. As a result, the permanent magnet 11 can be prevented from coming into contact with water, and problems such as deterioration of the performance of the permanent magnet 11 can be eliminated.

FIG. 6 is an exploded perspective view of the inner unit 1 showing the water tank cleaning tool according to the second embodiment. FIG. 7 is a sectional view of the inner unit 1 as well. The difference from the embodiment shown in FIGS. 2 and 3 is that the surface of the permanent magnet 11 is coated with a waterproof coating 11a (corresponding to waterproof means). The thickness of the coating 11a is preferably 0.1 mm or more. Examples of coating resins include epoxy resins, acrylic resins, and polyester resins. Alternatively, it may be integrally molded with the permanent magnet 11 and coated with a resin such as PP, ABS, or PS.

<Another embodiment>
In this embodiment, a permanent magnet is used for the outer unit 2, but a magnetic material may be used instead of the permanent magnet.

Although a goldfish bowl is used as an example of the water tank, the water tank is not limited to this, and may be a water tank having other curved surfaces. Also, the water tank cleaning tool according to the present invention may be used for a rectangular parallelepiped water tank that does not have curved surfaces.

1 inner unit 10 main body 10a hole 11 permanent magnet 11a waterproof coating 12 waterproof sheet 13 cover member 2 outer unit 20 main body case

Claims (3)

An outer unit arranged outside the wall surface of the water tank and an inner unit arranged inside the wall surface of the water tank are provided, and the inside of the wall surface of the water tank is cleaned by making the inner unit follow the movement of the outer unit by magnetic force. A water tank cleaning tool,
The inner unit is
a main body having flexibility and having an accommodating portion for accommodating a permanent magnet;
a flexible cover member provided on the front surface and the back surface of the main body;
A water tank cleaning tool, further comprising waterproof means disposed between the cover member and the permanent magnet for waterproofing the permanent magnet. 2. The aquarium cleaning tool according to claim 1, wherein the waterproof means is a waterproof sheet placed on the surface of the permanent magnet. 3. The aquarium cleaning tool according to claim 1, wherein said waterproof means is a waterproof coating formed on the surface of said permanent magnet.

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