Fishing tackle and surface treatment method for fishing tackle

Abstract

To provide a fishing gear which reduces appearance defects while maintaining the surface strength when alumite treatment is applied to a surface.SOLUTION: In a fishing gear, a high-purity aluminum layer 11 composed of aluminum having a purity higher than that of a base material 10 is coated on a surface of the base material 10 formed by die-casting an aluminum alloy, and an alumite layer 12 by alumite treatment is formed thereon. Then, a second alumite layer 15 is formed by performing alumite treatment again in a portion where the high-purity aluminum layer 11 is exposed by removing a part of the alumite layer 12.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to various fishing tackles carried when fishing, and to a surface treatment method for such fishing tackles. [Background technology]

[0002] Conventionally, for fishing tackle such as fishing reels, a configuration is known in which components are formed by aluminum die casting and the surface is anodized to improve the appearance and ensure sufficient corrosion resistance and strength, as disclosed in Patent Document 1. As shown in Fig. 5(a), the base material 50 of such components is often made of an aluminum alloy (mainly ADC12) in consideration of price, availability, workability, strength, etc., and high-purity aluminum is deposited on the surface of the base material 50 by physical vapor deposition methods such as vacuum deposition, sputtering, and ion plating, or by electroplating (a high-purity aluminum layer 51 is deposited on the base material 50).

[0003] Patent Document 1 discloses that a component coated with such a high-purity aluminum layer 51 is subjected to an anodizing treatment (anodic oxidation treatment) to form a surface-modified anodized layer 52, thereby obtaining a fishing tackle (fishing reel) that has excellent abrasion resistance and corrosion resistance and has a shiny appearance.

[0004] In the above-mentioned surface treatment method, a high-purity aluminum layer 51 is formed, resulting in a lustrous appearance. However, as shown in FIG. 5(b), anodizing is directly performed on an aluminum alloy substrate 50 to form an anodized aluminum layer 52, and a colored coating layer 55 is then formed on the surface by painting. Alternatively, as shown in FIG. 5(c), anodizing is directly performed on an aluminum alloy substrate 50 to form an anodized aluminum layer 52, and a dyeing and sealing treatment is then performed on the surface to form a dyed anodized aluminum layer 56. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP2005-13153A Summary of the Invention [Problem to be solved by the invention]

[0006] In the conventional technique disclosed in the above-mentioned Patent Document 1, it is necessary to form an anodized aluminum layer of a predetermined thickness in order to improve the appearance and ensure the surface strength. However, due to the difference in thermal contraction (linear expansion coefficient) between the die-cast material and the high-purity aluminum layer, so-called cracks occur in the high-purity aluminum layer. During the anodizing process, discoloration occurs due to the seepage of the anodizing solution from the cracked areas, and therefore, even if the mechanical performance is satisfactory, there is a possibility that the product cannot be shipped due to poor appearance during product inspection.

[0007] The above-mentioned crack phenomenon is believed to be influenced by stress caused by an increase in volume during anodizing and the structure of the anodized aluminum due to the shape of the base material. That is, when the high-purity aluminum layer 51 is anodized, the volume of the anodized aluminum layer 52 increases (to about 1.4 times that of the high-purity aluminum layer 51), and a tensile stress acts on the high-purity aluminum layer 20. This stress is considered to be one of the causes of cracks (also called cracks) in the anodized aluminum layer. Furthermore, when the base material to be die-cast is formed into a shape having a convex surface, the anodized aluminum layer grows perpendicular to the surface on the convex surface side, so that cracks tend to spread radially and tend to occur in the porous layer. That is, when the fishing tackle having a sharp edge or a convex curved surface is anodized, it is considered that cracks (poor appearance) tend to occur easily in combination with the thickness and residual stress of the deposition layer described above.

[0008] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a fishing tackle that reduces appearance defects while maintaining surface strength when the surface is anodized, and a surface treatment method for such a fishing tackle. [Means for solving the problem]

[0009] In order to achieve the above-mentioned object, the fishing tackle of the present invention is characterized in that a high-purity aluminum layer made of aluminum having a higher purity than the base material is applied to the surface of a base material formed by die-casting an aluminum alloy, and an anodized aluminum layer is formed on the high-purity aluminum layer by anodizing treatment, and a second anodized aluminum layer is formed on the portion where the high-purity aluminum layer is exposed by removing a portion of the anodized aluminum layer by anodizing again.

[0010] In the above-mentioned configuration, a high-purity aluminum layer is formed on the substrate using high-purity aluminum, and the surface is polished and then anodized to obtain a glossy, shiny appearance. In addition, a part of the formed anodized layer is removed to expose the high-purity aluminum layer, and a second anodized layer is formed by anodizing again. Therefore, even if a defective appearance occurs due to, for example, cracks when the first anodized layer is formed, the defective appearance can be eliminated by removing the part and forming the second anodized layer, and the surface strength is not reduced.

[0011] In order to achieve the above-mentioned object, the present invention provides a surface treatment method for fishing tackle, the surface treatment method comprising: a deposition step of depositing a high-purity aluminum layer made of aluminum having a higher purity than the base material on the surface of a fishing tackle base material formed by die-casting an aluminum alloy; a first anodized layer forming step of forming a first anodized layer by anodizing following the deposition step; a removal step of removing a portion of the first anodized layer to expose the high-purity aluminum layer; and a second anodized layer forming step of forming a second anodized layer by anodizing following the removal step.

[0012] Even with this type of treatment, even if poor appearance occurs when the first anodized layer is formed, that part is removed and then the second anodized layer is formed, so it is possible to eliminate the poor appearance and there is no reduction in surface strength. Effect of the Invention

[0013] According to the fishing tackle and the surface treatment method thereof of the present invention, when the surface is anodized, it is possible to reduce defects in appearance while maintaining the surface strength. [Brief description of the drawings]

[0014] [Figure 1] 1 is a diagram showing an example of the configuration of an exterior body of a spinning reel (fishing reel) which is an example of fishing tackle according to the present invention. [Diagram 2] A schematic diagram showing the removal process in which a high-purity aluminum layer is applied to an aluminum alloy (ADC12), an anodized layer is formed, and then part of the anodized layer is removed to expose the high-purity aluminum layer. [Diagram 3] FIG. 3 is a schematic diagram showing a state in which a second anodized aluminum layer is formed after the removing step shown in FIG. 2 . [Figure 4] 1A to 1C are diagrams showing a surface treatment process for a fishing tackle according to the present invention. [Diagram 5] 1(a) to 1(c) are diagrams explaining conventional surface treatment (anodizing) methods. [Figure 6] These are photographs showing the state of the fishing reel shown in Figure 1 after surface treatment (distress processing) to give it a vintage look, where (a) is a photograph before processing and (b) is a photograph after processing. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] The present invention is applicable to various aluminum fishing tackles, and can be applied to the main frame, cover, handle, etc. of fishing reels. For example, as shown in Fig. 1, when making the exterior body 1 of a spinning reel out of an aluminum alloy, the exterior body 1 can be die-cast using the aluminum alloy. In this case, the base material of the exterior body 1 is made of an aluminum alloy such as ADC12, and by die-casting this, it is possible to process it into the shape shown in Fig. 1.

[0016] 2 to 4 are diagrams specifically illustrating the surface treatment method of the present invention when producing the exterior body 1 shown in FIG.

[0017] In this embodiment, an aluminum alloy (substrate 10) such as ADC12 is die-cast (FIG. 4; S1) to produce an exterior body 1 having the configuration shown in FIG 1. A high-purity aluminum layer 11 is deposited on the surface of the exterior body 1 thus formed, for example, by a physical vapor deposition method such as vacuum deposition, sputtering, or ion plating, or by a vapor deposition process such as electrodeposition plating (FIG. 4; S2). The thickness of this high purity aluminum layer 11 is not particularly limited, but is preferably 10 to 200 μm, and is preferably 30 to 40 μm or more because it is partially removed as described later.

[0018] Then, by carrying out the commonly known anodizing process (alumite treatment), an alumite layer (hereinafter referred to as the first alumite layer) 12 is formed on the surface (Fig. 4; S3), and at the same time, a shiny appearance pattern is formed by carrying out a dyeing process and a sealing process (Fig. 4; S4). In other words, by carrying out an alumite treatment on a surface with high aluminum purity, a shiny metallic feel (gloss) is obtained, and by carrying out a dyed alumite treatment, the color variation of the surface is also increased.

[0019] The thickness of the first anodized layer 12 is preferably thin to reduce internal stress caused by anodizing, and is preferably thinner than the high purity aluminum layer 11. This is because if the first anodized layer 12 is formed too thick, the residual stress generated in the high purity aluminum layer 11 becomes too large, tending to cause cracks and the like. By forming the first anodized layer 12 thinner than the high purity aluminum layer 11, it is possible to effectively prevent cracks and the like from occurring in the first anodized layer 12.

[0020] As described above, the aluminum alloy, which is the die-casting material, and the high-purity aluminum layer have different thermal contraction rates (linear expansion coefficients), and cracks and the like may occur in the high-purity aluminum layer. If such cracks occur, discoloration may occur due to seepage of the anodizing solution from the cracked areas during anodizing, and thus there is a possibility that poor appearance may occur during product inspection, even if the mechanical performance is satisfied. For this reason, in this embodiment, a surface treatment method that makes such cracks and discolored areas less noticeable, or a surface treatment method that eliminates such cracks and discolored areas, is used to improve design (design variation).

[0021] Specifically, a portion of the first anodized layer 12 is removed to expose the high purity aluminum layer 11 (FIG. 4; S5), and the exposed portion of the high purity aluminum layer 11 (in FIG. 2, the exposed portion is indicated by the symbol 11a) is subjected to a second anodized treatment (second anodized treatment (FIG. 4; S6)) to form a second anodized layer 15. In this case, the first anodized layer 12 can be removed by, for example, mechanical processing such as drilling, laser processing, etching, barrel processing, etc., and the removal method can be appropriately selected depending on the required appearance. For example, if a precise pattern or print is desired on the surface of the article, mechanical processing, laser processing, or etching can be selected. Also, if the surface of the article is intentionally scratched to create a vintage look, removal by barrel processing is effective.

[0022] The above-mentioned removal method may be a method of penetrating the first anodized layer 12 and exposing the surface of the high-purity aluminum layer 11, as in the recess shown by hole 14A in Fig. 2, a method of penetrating the first anodized layer 12 and removing up to the middle part of the high-purity aluminum layer 11, as in the recess shown by hole 14B in Fig. 2, or a method of penetrating the first anodized layer 12 and exposing the surface of the base material 10, as in the recess shown by hole 14C in Fig. 2. The part to be removed may be a part, and the part is not limited to the part where cracks or the like have occurred.

[0023] As described above, the first anodized layer 12 is penetrated because if the second anodized treatment (dyeing anodized treatment) is performed while the first anodized layer remains, the desired color cannot be obtained. By exposing the high-purity aluminum layer 11, the desired color can be obtained. That is, the second anodized layer 15 is formed by performing the second anodized treatment using the exposed portion (the cut side surface or bottom surface) of the high-purity aluminum layer 11. In this case, depending on the polishing method, it is possible to change the depth of the processed hole in the high-purity aluminum layer 11 (the thickness of the high-purity aluminum layer 11) as shown in FIG. 2, and by performing the second anodized treatment on the high-purity aluminum layer 11 exposed in the recessed area of ​​the high-purity aluminum layer 11 with different depths, it is possible to achieve designs with different shades of color even with the same color anodized treatment.

[0024] After the first anodized aluminum layer 12 is removed by the above-mentioned removal method, the recessed portion is filled with the second anodized aluminum. Surface The second anodized layer 15 is formed on the surface of the product. In other words, when viewed as a whole surface, it is possible to apply a new design while maintaining the surface strength. Also, when an appearance that produces a vintage feel is selected by barrel processing, random scratches caused by the barrel processing hide defects that would otherwise be problematic in appearance, so it is possible to reduce the defect rate.

[0025] In the second anodizing treatment, a desired color can be imparted by performing a dyeing treatment and then a sealing treatment (FIG. 4; S7). In addition to the removal method shown in FIG. 2, a recess may be formed all the way to the inside of the base material 10, but even if a dyeing treatment is performed during the second anodizing treatment, it becomes difficult to achieve the desired color (however, a variety of colors and combinations thereof are possible).

[0026] Furthermore, the high purity aluminum layer in the first anodized layer forming step and the high purity aluminum layer in the second anodized layer forming step may have different surface properties. For example, when performing the first anodizing treatment, the surface of the high-purity aluminum layer 11 may be made matte by shot blasting or the like, and the high-purity aluminum layer 11 that is removed (to form recesses) for the second anodizing treatment may be polished to give it a glossy finish.

[0027] According to this type of surface treatment method, by forming the recesses with letters or the like, when the matte-textured surface is subjected to a second anodizing treatment, it is possible to give the markings or the like a glossy, raised appearance.

[0028] FIG. 6 is a photograph showing a fishing reel (the exterior of the spinning reel shown in FIG. 1) that has been given a vintage feel by the above-mentioned distress processing, where (a) is a photograph before processing and (b) is a photograph after processing. Fig. 1(a) is a diagram showing the state after the first anodizing treatment and black dyeing treatment have been performed. The exterior body 1 in this state is then subjected to barrel polishing to penetrate the first anodizing layer 12 and to a process of scraping the surface so that the high-purity aluminum layer 11 is exposed (first anodizing layer removal process).

[0029] When this type of removal process is performed, the depth of the recesses on the surface of the high-purity aluminum layer 11 becomes random. If a second anodizing process is performed in this state, as shown in Figure (b), even if discoloration occurs in the first anodizing process, the discoloration is made less noticeable and a vintage appearance with a mixture of black and silver can be achieved. In addition, by performing a dyeing process together with the second anodizing process, it is possible to achieve an even more different appearance.

[0030] As described above, even if a poor appearance due to discoloration occurs in the normally performed first anodizing treatment, such discoloration can be made less noticeable or the overall appearance can be changed by performing the above-described first anodized layer removal treatment and second anodizing treatment, making it possible to reduce poor appearance while maintaining the surface strength of the exterior body 1. In addition, even if the exterior body has deteriorated in appearance due to aging or the like, it can be reused by performing the above-described removal treatment and second anodizing treatment.

[0031] The above-mentioned surface treatment process is an example, and may be carried out, for example, as follows. As described above, the substrate 10, which is a component of the fishing tackle, is formed into a predetermined shape by die-casting an aluminum alloy (ADC12), and a high-purity aluminum layer 11 having a higher purity than the substrate is formed on its surface, but this high-purity aluminum layer 11 may be laminated or adhered in at least two layers. In this way, by forming multiple layers (two or more layers) of high-purity aluminum layers having a higher purity than the substrate 10, it is possible to make the film thickness of each layer thinner than when there is only one layer.

[0032] Generally, the thicker the film, the higher the internal stress (residual stress) of the evaporated film. Therefore, by dividing the high-purity aluminum layer into two or more layers and depositing them, the internal stress can be effectively reduced and the occurrence of cracks during the first anodizing treatment can be suppressed. In addition, when depositing the second layer, the residual stress of the first high-purity aluminum layer is removed by the heat (annealing effect), so the residual stress is reduced and it becomes possible to suppress cracks, etc. Even if some cracks are generated on the surface of the first layer (which is thought to be easy to generate on curved surfaces), when the second layer is deposited, it can enter the gaps of such cracks and effectively suppress the occurrence of cracks.

[0033] As described above, when forming two or more high-purity aluminum layers, it is preferable to use a layer with a higher purity (linear expansion coefficient) than the lower layer. In general, the higher the purity, the higher the linear expansion coefficient tends to be, so it is thought that a highly lustrous appearance can be obtained by using a pure aluminum material with a high linear expansion coefficient as the outermost layer. That is, as the purity of aluminum increases, its glossiness increases, so it is preferable to coat the substrate 10 with high-purity aluminum. However, as the linear expansion coefficient increases as the purity increases, as described above, in a configuration in which one high-purity aluminum layer is coated, the difference in linear expansion coefficient between the substrate 10 becomes too large, making it easy for cracks to occur. For this reason, for aluminum with a high purity (linear expansion coefficient), instead of directly coating the substrate 10, a layer with a lower purity (linear expansion coefficient) is interposed between the high-purity aluminum layer and the substrate 10 to form multiple layers, thereby reducing internal stress (reducing cracks), and it is possible to perform an anodizing treatment on the high-purity aluminum layer and obtain a highly glossy exterior surface.

[0034] In this case, the high purity aluminum layers to be stacked may be formed in three or more layers, and in such a case, it is preferable to coat aluminum with gradually increasing purity as moving to the upper layers (a configuration in which aluminum with the same purity is coated on some adjacent layers and a configuration in which aluminum with a higher purity is coated on the lower layers may be included).

[0035] In addition, since the tensile stress of the high-purity aluminum layer increases in proportion to its thickness, as described above, when the layer is applied in multiple layers, the thickness of the layer is gradually reduced toward the upper layer, which is considered to reduce the stress difference between the layers and to make cracks less likely to occur. More preferably, the thickness of the first anodized layer 12 formed by the first anodizing process is preferably made thin to reduce the internal stress caused by the anodizing, and more specifically, it is preferable to make it thinner than the thickness of the high-purity aluminum layer formed in two or more layers. This is because if the anodized layer is formed too thick, the residual stress generated in the uppermost high-purity aluminum layer becomes too large, which tends to make cracks more likely to occur. Therefore, by forming the first anodized layer 12 thin, it is possible to more effectively prevent cracks from occurring in the anodized layer.

[0036] In particular, in a structure in which the base material 10 has a convex surface, the oxide film is oriented vertically, so that the anodized layer itself is prone to cracking. For this reason, the thickness of the first anodized layer 12 is formed to about 5 to 10 μm, depending on the curvature of the convex surface, so that such cracking can be effectively prevented. The exterior portion of the first anodized layer 12 formed by the first anodizing process may be formed to be thin in its entirety, or a part of it may be thinner than the thickness of the high-purity aluminum layer formed in two or more layers. In this way, even if a part of it is thin, it is possible to suppress the occurrence of cracks. Alternatively, depending on the shape of the member, the deposition state of the high-purity aluminum layer may not be uniform, and in such a case, it is sufficient to form it to be thinner than the thickness of the high-purity aluminum layer at the thickest part.

[0037] Each of the two or more high-purity aluminum layers is preferably formed to have a thickness of 30 μm or less. This is because by making each layer 30 μm thick, the occurrence of cracks can be reduced, and therefore by making each of the multiple high-purity aluminum layers 30 μm thick or less, the occurrence of cracks can also be suppressed.

[0038] In addition, when the final anodizing process is performed, tensile stress occurs due to volume expansion, which becomes a cause of cracks. Therefore, it is considered effective in preventing the occurrence of cracks to apply compressive stress to the high-purity aluminum layer before the anodizing process and reduce the apparent stress by interfering with the tensile stress generated during the first anodizing process. For this reason, it is preferable to perform a shot peening process on the surface of each layer formed of two or more layers, or on the surface of any of the layers. The shot peening process hardens the work by hitting the surface to generate compressive stress, so that compressive stress is applied before the first anodizing process, and it is possible to reduce the tensile stress generated during anodizing and suppress the occurrence of cracks. In addition, this process also hardens the surface by finely refining the crystal grains, making it resistant to scratches and impacts on the surface. In addition, such a shot peening process may be performed each time a high-purity aluminum layer is formed, or may be performed after the top high-purity aluminum layer is deposited, and it is also possible to improve the design.

[0039] The high purity aluminum layer 11 may be applied to the substrate 10 in two or more layers, but in practice, two or three layers are preferable. There is no upper limit to the number of layers, but considering the processing cost, processing time, and labor, it is preferable to form five layers or less.

[0040] Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment and can be modified in various ways. For example, the material constituting the base material 10 is not limited to ADC12. In addition, the removal process of the first anodized layer can be performed by various methods such as drilling, cutting, grinding, etc., and the removal process may be performed by masking as necessary. In addition, the surface treatment of the present invention can be performed on the laminated structure shown in Figure 5 (b) (c). Furthermore, the present invention may be applied to fishing tackle other than reels, and can also be applied to various sports goods other than fishing tackle. [Explanation of symbols]

[0041] 1 Exterior body 10 Base material 11 High purity aluminum layer 12 First anodized layer 15 Second anodized layer

Claims

1. A fishing tackle in which a high-purity aluminum layer made of aluminum having a higher purity than the base material is applied to the surface of the base material made of die-cast aluminum alloy, and an anodized aluminum layer is formed on the high-purity aluminum layer by anodizing, A fishing tackle characterized in that a second anodized aluminum layer is formed by performing a second anodized aluminum treatment on a portion of the anodized aluminum layer that has been exposed by removing a portion of the anodized aluminum layer.

2. 2. The fishing tackle according to claim 1, wherein the second anodizing treatment is performed by dyeing to impart color thereto.

3. 3. The fishing tackle according to claim 1, wherein the high purity aluminum layer is exposed at a plurality of locations, and the depth of the exposed portion varies depending on the location.

4. 4. The fishing tackle according to claim 1, wherein the high purity aluminum layer is formed in two or more layers, and the purity of the upper layer is higher than that of the lower layer.

5. 5. The fishing tackle according to claim 1, wherein the high purity aluminum layer is formed in two or more layers, and the thickness of the layer is gradually thinner toward the upper layer.

6. 6. The fishing tackle according to claim 1, wherein the high purity aluminum layer has a thickness of 10 to 200 μm.

7. 7. The fishing tackle according to claim 1, wherein a surface of the high-purity aluminum layer, or, when two or more high-purity aluminum layers are formed, a surface of each layer or a surface of any one of the layers, is subjected to a shot peening treatment.

8. The fishing tackle according to any one of claims 1 to 7 is a fishing reel.

9. a coating step of coating a surface of a base material of a fishing tackle formed by die-casting an aluminum alloy with a high-purity aluminum layer made of aluminum having a higher purity than the base material; Following the deposition step, a first anodized layer forming step is performed to form a first anodized layer by anodizing; a removing step of removing a portion of the first anodized aluminum layer to expose the high purity aluminum layer; Following the removing step, a second anodized layer forming step is performed by performing an anodizing process again to form a second anodized layer; A surface treatment method for fishing tackle, comprising the steps of:

10. 10. The method for treating a surface of a fishing tackle according to claim 9, wherein the second anodized aluminum layer forming step comprises a dyeing treatment.

11. 11. The surface treatment method for fishing tackle according to claim 9 or 10, wherein the removing step changes the depth depending on the position and does not expose the base material.

12. The surface treatment method for fishing tackle according to any one of claims 9 to 11, characterized in that the high-purity aluminum layer formed in the first anodized layer forming process and the high-purity aluminum layer formed in the second anodized layer forming process have different surface properties.

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