KR-102962545-B1 - A scratcher that can sharpen cat claws

Abstract

A scratcher capable of economical and resource-saving cat claw sharpening is disclosed, which is configured to allow assembly by arranging multiple sharpening units in a modular manner, thereby enabling the selective separation and replacement of only specific worn sharpening units. A scratcher capable of sharpening cat claws is a scratcher capable of sharpening cat claws, comprising: a plurality of sharpening units arranged in a modular manner and arrangable; a hole unit formed through the sharpening unit along the width direction of the sharpening unit; a fastening unit insertable into the hole unit; a plurality of groove units recessed inward along the height direction from the top of the sharpening unit and spaced apart from each other along the length direction on both sides of the sharpening unit; and a grinding unit inserted into the groove unit and having a grinding surface for grinding cat claws on at least one side. A plurality of sharpening units are provided. A fastening unit is inserted into each hole unit of the plurality of sharpening units, and they are formed integrally with each other. A specific sharpening unit worn down by a cat can be separated from the fastening unit and replaced.

Inventors

• 이재연

Dates

Publication Date

20260507

Application Date

20251015

Claims (3)

1. As a scratcher capable of sharpening cat claws, A polishing unit comprising multiple modular units that can be arranged; A hole unit formed through the above-mentioned polishing unit along the width direction of the above-mentioned polishing unit; A fastening unit insertable into the above-mentioned hole unit; A plurality of groove units that are recessed inward along the height direction at the upper part of the polishing unit and spaced apart from each other along the length direction at both sides of the polishing unit; and A grinding unit inserted into the above-mentioned home unit and having a grinding surface on at least one side for grinding a cat's claw; comprising The above grinding unit is provided in multiple units, and A plurality of the above-mentioned polishing units have the fastening unit inserted into each hole unit and are formed integrally with each other. A plurality of the above-mentioned grinding units can replace a specific grinding unit worn down by a cat by separating it from the above-mentioned fastening unit, and The above grinding unit is, A pair of cover parts having a first hole portion of the hole unit formed inside, and a plurality of first groove portions of the groove unit formed on the upper part, which are concavely recessed inwardly; A plurality of reinforcing members spaced apart along the width direction of the polishing unit between the pair of cover members, wherein a second hole of the hole unit is formed at a position corresponding to the first hole member inside, and a plurality of second grooves of the groove unit are formed inwardly concavely at a position corresponding to the plurality of first grooves from the top; and A scratching portion comprising: a portion disposed between the plurality of reinforcing portions and coupled to the plurality of reinforcing portions, wherein a third hole portion of the hole unit is formed inside at a position corresponding to the first hole portion and the second hole portion, and a plurality of third groove portions of the groove unit are formed inwardly concavely at a position corresponding to the plurality of first groove portions and the plurality of second groove portions from the top. The above-mentioned scratching part is provided in multiple numbers, A plurality of the above-mentioned scratching parts are stacked between the plurality of the above-mentioned reinforcing parts, and The plurality of reinforcing members is such that a pair of reinforcing members arranged at both ends with respect to the width direction of the grinding unit are attached to the pair of cover members, and The above reinforcing part is, A first reinforcing plate member having multiple openings formed therein; A second reinforcing plate member coupled to the lower part of the first reinforcing plate member; and A third reinforcing plate member coupled to the lower part of the second reinforcing plate member; comprising The first reinforcing plate member is formed from a fine woven mesh with intersecting lines or a perforated plate with holes, and is formed from any one of perforated steel plates, metal mesh, plastic perforated plates, or fiber mesh. The above opening is formed in the shape of a square, a hexagon, or a circle, and The second reinforcing plate member is formed with sandpaper having a set roughness of 320 grit or less, and The third reinforcing plate member has an adhesive applied to one side, and the first reinforcing plate member and the second reinforcing plate member are joined by the adhesive. The above grinding unit is, A grinding body portion extending along the width direction of the grinding unit and inserted into the groove unit; and It includes a plurality of grinding blades that protrude from both sides of the grinding body, are spaced apart along the height direction of the grinding unit, and extend in a streamlined shape along the width direction of the grinding unit. The above grinding blade is, A first grinding surface forming the lower surface of the grinding blade portion and formed as an upwardly inclined rounded surface; and A second grinding surface that forms the upper surface of the grinding blade portion, is formed as an upwardly inclined rounded surface, and has an end connected to the first grinding surface; The above grinding blade is, The first grinding surface is extended to have a first curvature (K1), and the angle of extension (α1) relative to a virtual first curvature circle (C1) is greater than 90° and less than 110°, and The second grinding surface is extended to have a second curvature (K2) smaller than the first curvature (K1), and the angle of extension (α2) relative to a virtual second curvature circle (C2) is greater than 80° and less than 100°, and The first grinding surface above has the first curvature (K1) calculated according to the following mathematical formula 1, and The above second grinding surface is a scratcher capable of grinding a cat's claw, wherein the second curvature (K2) is calculated according to the following mathematical formula 2. [Mathematical Formula 1] (Here, K1 represents the first curvature value, f'( x1 ) represents the first derivative of the function formed by the imaginary first circle of curvature ( C1 ), f''( x1 ) represents the second derivative of the function formed by the imaginary first circle of curvature ( C1 ), and x1 represents a specific x-axis coordinate value in the function formed by the imaginary first circle of curvature ( C1 ).) [Mathematical Formula 2] (Here, K² represents the second curvature value, f'( x² ) represents the first derivative of the function formed by the imaginary second circle of curvature ( C² ), f''( x² ) represents the second derivative of the function formed by the imaginary second circle of curvature ( C² ), and x² represents a specific x-axis coordinate value in the function formed by the imaginary second circle of curvature ( C¹ ).)
2. delete
3. In claim 1, The above-mentioned fastening unit is, A fastening shaft portion that can be inserted into the interior of the above-mentioned hole unit and extends along the width direction of the above-mentioned grinding unit; With respect to the width direction of the grinding unit, a fastening installation groove portion that is concavely recessed inward along the radial direction of the fastening shaft portion from one side of the outer surface of the fastening shaft portion; A fastening through-groove portion that is concavely recessed inward from one of the two sides of the fastening shaft portion and communicates with the fastening installation groove portion; A first fastening catch portion, at least a portion thereof disposed inside the fastening installation groove portion and the remaining portion thereof exposed to the outside of the fastening installation groove portion; One side is supported by the inner wall of the fastening shaft portion forming the fastening installation groove portion, and the other side supports the first fastening catch portion disposed inside the fastening installation groove portion, and the fastening spring portion is formed to be expandable and contractible along the radial direction of the fastening shaft portion; A fastening wire portion disposed inside the fastening installation groove portion and the fastening penetration groove portion, with one side penetrating the interior of the fastening spring portion and connected to the remaining part of the first fastening catch portion, and the other side exposed to the outside of one side of the two sides of the fastening shaft portion and supported by being caught on one side of the fastening shaft portion so as to be gripped by a user; and With respect to the width direction of the grinding unit, a second fastening catch portion protruding along the radial direction of the fastening shaft portion from one side of the outer surface of the fastening shaft portion; The above cover portion is provided with a fastening groove that is concavely recessed inward along the radial direction of the first hole portion in a shape corresponding to the first fastening catch portion and the second fastening catch portion in the inner wall forming the first hole portion. The above fastening unit is inserted into the hole unit while the fastening wire portion is pulled by a user and the first fastening catch portion is completely received within the fastening installation groove portion by the pulled fastening wire portion, and during the process of insertion into the hole unit, the second fastening catch portion is inserted and supported in the fastening groove of the cover portion located at one end of the plurality of grinding units. The above fastening unit, while inserted into the hole unit, returns the fastening wire part and the first fastening catch part to their original positions through the elastic restoring force of the fastening spring part when the user releases the pulling of the fastening wire part, and during the process of the first fastening catch part returning to its original position, moves along the radial direction of the fastening shaft part and is inserted and supported in the fastening groove of the cover part located at the other end among the plurality of grinding units. The above scratching part is, A pair of scratching support members positioned on both sides; A plurality of scratching buffer members disposed between the pair of scratching support members with respect to the width direction of the polishing unit, formed in a corrugated shape extending along the length direction of the polishing unit, and spaced apart along the length direction of the polishing unit; and It includes a plurality of scratching reinforcing members disposed between the pair of scratching support members and between the plurality of scratching buffer members, formed as a honeycomb grid in which hexagonal cells are continuously arranged in a two-dimensional plane, and each connected to adjacent scratching buffer members. The above-described scratching cushioning member has a wavy cross-section in which a first curved surface bent to one side and a second curved surface bent to the other side are continuously repeated, the radius of curvature of the first curved surface and the radius of curvature of the second curved surface are formed to be the same, and the distance between the vertices of the first curved surface and the second curved surface is formed to be 1.5 to 2.5 times the radius of curvature. The above scratching cushioning member has a higher elastic modulus than the above scratching reinforcing member, and is configured such that both ends of the above scratching cushioning member are respectively joined to the above pair of scratching support members, and the corrugated side of the above scratching cushioning member makes surface contact with the hexagonal cell wall of the adjacent scratching reinforcing member. The hexagonal cells of the scratching reinforcing member are formed such that the ratio of cell height to cell diameter is 1:3 to 1:5, and the arrangement of the hexagonal cells is arranged to form an angle of inclination of 30 to 60 degrees with respect to the extension direction of the scratching cushioning member. The above-mentioned scratching reinforcing member is located in the section between 40% and 60% of the height between the corrugated trough and the corrugated crest of the above-mentioned scratching cushioning member, and both ends of the above-mentioned scratching reinforcing member are respectively closely bonded to the curved surface of the adjacent scratching cushioning member to form a stress transfer path, and The plurality of scratching buffer members are arranged at equal intervals along the longitudinal direction of the polishing unit, wherein the waveform direction of each scratching buffer member and the waveform direction of an adjacent scratching buffer member are arranged to intersect at a 90-degree angle, and A scratcher capable of polishing a cat's claw, wherein when a repetitive scratching load by a cat's claw is applied to the scratching part, the scratching reinforcing member suppresses local deformation of the scratching cushioning member and disperses the load to an adjacent area, and the cell structure of the honeycomb grid selectively deforms according to the scratching direction to absorb energy.

Description

A scratcher that can sharpen cat claws The present invention relates to a scratcher capable of sharpening cat claws, and more specifically, to a scratcher capable of sharpening cat claws in which a plurality of sharpening units are arranged modularly for assembly, and only specific worn sharpening units can be selectively separated and replaced, and which provides effective sharpening of cat claws through a multi-layer composite sharpening surface and a scientifically designed grinding blade structure, and which contributes to environmental protection by utilizing eco-friendly recycled materials. Cats instinctively scratch their claws; this is a natural habit to remove the old outer layer and maintain new, sharp claws. Additionally, scratching serves various purposes, such as marking territory, stretching, and relieving stress. When raising cats indoors, damage caused by scratching furniture, wallpaper, sofas, and other surfaces occurs frequently. To prevent this, scratching posts specifically designed for cats are widely used. Conventional cat scratchers are made of materials such as cardboard, carpet, burlap, and wood, and are available in various forms, including pillar-type, plate-type, and slanted-type. However, conventional scratchers have the following problems. First, since it is manufactured with a one-piece structure, the entire unit must be replaced even if only a part wears out, resulting in a significant economic burden and waste of resources. Second, providing only a polishing surface with a simple flat structure limits the effectiveness of sharpening a cat's claws and makes it difficult to continuously stimulate the cat's interest. Third, the roughness or structure of the polished surface is uniform, so it does not provide the optimal polishing effect according to the condition of the cat's claws or the scratching intensity. Fourth, the polished surface is easily deformed or damaged by repeated scratching loads, resulting in reduced durability. Fifth, most use petroleum-based synthetic materials, causing environmental pollution, and are difficult to recycle upon disposal. Sixth, the comfort of the usage environment is reduced because it fails to effectively absorb the shock and noise generated during the cat's scratching process. Therefore, there is a need to develop a new type of cat scratcher that utilizes eco-friendly recycled materials, features a modular structure for partial replacement, provides excellent claw sharpening effects through a multi-layer composite grinding surface and a scientifically designed grinding structure, and offers improved durability against repetitive loads. Fig. 1 is Figure 2 is Fig. 3 is Fig. 4 is Fig. 5 is Fig. 6 is Fig. 7 is Fig. 8 is Fig. 9 is Fig. 10 is Fig. 11 is Fig. 12 is Fig. 13 is Fig. 14 is Fig. 15 Hereinafter, embodiments are described in detail with reference to the attached drawings. However, various modifications may be made to the embodiments, and thus the scope of the patent application is not limited or restricted by these embodiments. It should be understood that all modifications, equivalents, and substitutions to the embodiments are included within the scope of the rights. Specific structural or functional descriptions of the embodiments are disclosed for illustrative purposes only and may be modified and implemented in various forms. Accordingly, the embodiments are not limited to the specific disclosed forms, and the scope of this specification includes modifications, equivalents, or substitutions that fall within the technical concept. Terms such as "first" or "second" may be used to describe various components, but these terms should be interpreted solely for the purpose of distinguishing one component from another. For example, the first component may be named the second component, and similarly, the second component may be named the first component. When it is stated that a component is "connected" to another component, it should be understood that it may be directly connected to or coupled with that other component, or that there may be other components in between. The terms used in the embodiments are for illustrative purposes only and should not be interpreted as intended to be limiting. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as "comprising" or "having" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the embodiments pertain. Terms such as those defined in commonly used dictionaries should be interpret