School satchel metal fittings substitute and school satchel

Abstract

To provide a practical substitute for the metal fittings of school satchels.SOLUTION: A primer layer 101 is formed on the surface of a thermoplastic resin substrate 100, a vapor deposition plating layer 102 is formed on the surface of the primer layer 101, and a protective film layer 103 is formed on the surface of the vapor deposition plating layer 102. The vapor deposition plating layer 102 is preferably formed from a discontinuous film. The protective film layer 103 may be colored. A non-plated section 104, lacking the vapor deposition plating layer 102, may be provided on the surface of the substrate 100.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a substitute for a school bag metal fitting and a school bag using the same. [Background technology]

[0002] As the name suggests, locks and other school bag hardware are generally made of metal. However, Patent Document 1 describes a lock base that is made of a single piece of synthetic resin and plated with metal. In other words, it describes a replacement for metal fittings rather than metal fittings. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-215550 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, Patent Document 1 does not provide a detailed explanation of metal replacements, so there are doubts about their practicality. For example, if wet plating is used for metal plating, there is a risk of injury from peeled plating, but it is unclear whether such a point has been taken into consideration.

[0005] The present invention aims to provide a practical substitute for school bag fittings. [Means for solving the problem]

[0006] The school bag fittings substitute of the present invention is characterized in that a primer layer 101 is formed on the surface of a base material 100 made of thermoplastic resin, a vapor-deposited plating layer 102 is formed on the surface of primer layer 101, and a protective film layer 103 is formed on the surface of vapor-deposited plating layer 102.

[0007] In the above-mentioned school bag metal fittings substitute, the vapor-deposited plating layer 102 is preferably formed as a discontinuous film.

[0008] Furthermore, the protective film layer 103 may be colored. Alternatively, a non-plated portion 104 where the vapor-deposited plating layer 102 is not formed may be provided on the surface of the base material 100. In this case, it is preferable that the non-plated portion 104 is provided in a portion that overlaps with another component.

[0009] It is also preferable that the substrate 100 is made of any one of polycarbonate resin, polybutylene terephthalate resin, polycarbonate / polybutylene terephthalate resin, polycarbonate / polyethylene terephthalate resin, polycarbonate / ABS resin, an alloy containing polycarbonate resin, an alloy containing polybutylene terephthalate resin, a copolyester resin, a cycloolefin resin, or an ABS resin.

[0010] It is also preferable that the base material 100 is any one of the base 31 of the lock 30, the daruma ring 32, the rim 44 of the back ring 40, the swing arm 42 of the back ring 40, the connecting ring 43 attached to the swing arm 42, the hanging device 50, and the buckle 60.

[0011] The school bag of the present invention is characterized by using any one of the school bag metal fitting substitutes 20 described above. Effect of the Invention

[0012] The school bag metal fittings substitute of the present invention described above essentially eliminates the risk of injury from peeled plating, and is therefore practical as a school bag metal fittings substitute.

[0013] When the vapor-deposited plating layer is formed as a discontinuous film, the plating does not peel off in large chunks, which further reduces the risk of injury caused by peeled plating, making it ideal as a replacement for school bag fittings.

[0014] When the protective film layer is colored, school bag metal fittings substitutes of various colors can be obtained.

[0015] When a non-plated portion where no vapor-deposition plating layer is formed is provided on the surface of the substrate, for example, costs can be reduced.

[0016] When the non-plated portion is provided in a portion that overlaps with another component, for example, it is possible to maintain a good appearance despite the presence of the non-plated portion.

[0017] High durability can be obtained when the substrate is made of any of polycarbonate resin, polybutylene terephthalate resin, polycarbonate / polybutylene terephthalate resin, polycarbonate / polyethylene terephthalate resin, polycarbonate / ABS resin, alloys containing polycarbonate resin, alloys containing polybutylene terephthalate resin, copolyester resin, cycloolefin resin, and ABS resin.

[0018] If the base material is any of the lock base, the daruma ring, the edging of the back ring, the swing arm of the back ring, the connecting ring attached to the swing arm, the hanging device, and the buckle, it is likely to contribute to making the school bag lighter. [Brief description of the drawings]

[0019] [Figure 1] 1 is a perspective view of a school bag according to an embodiment of the present invention; [Diagram 2] This is a view of the school bag from the bottom. [Diagram 3] FIG. 3A is a plan view of the back ring, FIG. 3B is a perspective view of the hanging device, and FIG. 3C is a front view of the buckle. [Figure 4] FIG. 11 is a schematic cross-sectional view of a replacement for school bag fittings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] The following describes a school bag according to one embodiment of the present invention. The school bag 1 comprises a school bag body 10 and a school bag metal fittings substitute 20 attached to the school bag body 10 (see FIG. 4).

[0021] As shown in FIG. 1, the school bag body 10 comprises a roughly box-shaped storage section 11 having an opening 11a at the top, a lid section 12 extending from the upper end of the backrest 11b of the storage section 11 (the surface that comes into contact with the user's back when the school bag 1 is worn) to cover and close the opening 11a of the storage section 11, and a pair of shoulder straps 13 extending from near the upper end of the backrest 11b to the bottom surface 11c of the storage section 11.

[0022] The school bag metal fittings substitute 20 is, for example, a lock 30 (see FIG. 2) for fixing the bottom end of the lid portion 12 to the bottom surface 11c of the storage portion 11, a back ring 40 (see FIG. 3A) for connecting the backrest 11b and the shoulder belt 13, a hanging device 50 (see FIG. 3B) for hanging an anti-theft buzzer or the like, and a buckle 60 (see FIG. 3C) used to adjust the length of the shoulder belt 13. However, it is not limited to these, and also includes metal fittings used in the school bag 1, such as decorative parts.

[0023] 2, the lock 30 includes a base 31, a pair of rings 32 attached near both ends of the base 31, and a lock unit 33 attached to the center of the base 31. The rings 32 are members for connecting the shoulder belt 13, and the lock unit 33 is a member for detachably fixing the member (lowering part) 12a attached to the lower end of the cover part 12.

[0024] 3A, the back ring 40 includes a base body 41, a pair of swing arms 42 swingably attached to the base body 41, a connecting ring 43 attached to the swing arms 42, and a rim 44 that borders the upper portion of the base body 41. The connecting ring 43 is a member for connecting the swing arms 42 to the shoulder belt 13. The swing arms 42 are a member for supporting the shoulder belt 13 swingably.

[0025] The suspender 50 is, for example, a snap hook or a D-ring. However, it is sufficient that it is annular and capable of suspending an object. The snap hook includes a hook portion 51 and a spring portion 52, as shown in FIG. 3B.

[0026] As shown in FIG. 3C, the buckle 60 includes a lug 61 and a pin 62.

[0027] The school bag metal fittings substitute 20 is made of a part or the whole of a thermoplastic resin. For example, it is preferable that the base 31 and the ring 32 of the lock 30 are made of a thermoplastic resin. Of course, the entire lock 30 may be made of a thermoplastic resin. In the case of the back ring 40, it is preferable that the swing arm 42, the connecting ring 43, and the edge metal 44 are made of a thermoplastic resin. Of course, the entire back ring 40 may be made of a thermoplastic resin. In the case of the hanging device 50, it is preferable that the hook portion 51 other than the spring portion 52 is made of a thermoplastic resin for those having a spring portion 52 such as a snap hook, and the entire device is made of a thermoplastic resin for those not having a spring portion 52 such as a D-ring. The entire buckle 60 may be made of a thermoplastic resin, or either the lug 61 or the hook bar 62 may be made of a thermoplastic resin.

[0028] The thermoplastic resin is preferably made of, for example, any one of polycarbonate resin, polybutylene terephthalate resin, polycarbonate / polybutylene terephthalate resin, polycarbonate / polyethylene terephthalate resin, polycarbonate / ABS resin, an alloy containing a polycarbonate resin, an alloy containing a polybutylene terephthalate resin, a copolyester resin, a cycloolefin resin, and an ABS resin.

[0029] If the thermoplastic resin portion is a substrate 100, plating is applied to the surface of this substrate 100. Specifically, as shown in Fig. 4, a primer layer 101 for bonding the substrate 100 and a vapor-deposited plating layer 102 is formed on the surface of the substrate 100, a vapor-deposited plating layer 102 is formed on the surface of the primer layer 101, and a protective film layer 103 is formed on the surface of the vapor-deposited plating layer 102.

[0030] The primer layer 101 and the protective film layer 103 are made of, for example, an acrylic urethane paint. Alternatively, an acrylic paint or a UV-curable paint may be used.

[0031] For example, high frequency ion plating is used for forming the metal film (forming the vapor-deposited plating layer 102). By adopting high frequency ion plating, it is possible to provide a crystal structure with more directivity than with vacuum deposition, and to improve adhesion. In other words, high durability can be obtained. However, vacuum deposition may also be used. The metals used are, for example, copper (Cu) and tin alloy (Sn alloy). Note that indium (In) may also be used. The thickness of the vapor-deposited plating layer is, for example, 1.0 to 1.2 μm. For example, the thickness of Cu is approximately 1.0 μm, and the thickness of the Sn alloy is approximately 0.2 μm.

[0032] The vapor-deposited plating layer 102 is preferably formed as a discontinuous film. A discontinuous film refers to a film in which an island structure is formed of countless islands of metal particles with gaps between them, and the metal does not form a continuous film. Therefore, the electric resistance is high. In addition, the gaps between the islands provide translucency. In addition, the vapor-deposited plating layer 102 acts as a half mirror, and the color of the substrate 100 appears on the surface through the vapor-deposited plating layer 102.

[0033] The surface of the base material 100 is preferably provided with a non-plated portion 104 where the vapor-deposited plating layer 102 is not formed. The non-plated portion 104 is preferably provided in a portion that overlaps with other components. For example, in the case of the base 31 of the lock 30, the surface that faces the school bag body 10 when the base 31 is attached to the school bag body 10 is the non-plated portion 104. In the case of the daruma ring 32, the surface that faces the base 31 when the lock 30 is attached to the base 31 is the non-plated portion 104. In the case of the edging 44 of the back ring 40, the surface that faces the back rest 11b when the edging 44 is attached to the back rest 11b is the non-plated portion 104. In the case of the swing arm 42, the portion that is accommodated in the base body 41 is the non-plated portion 104. In short, it is preferable that the non-plated portion 104 is a portion that cannot be seen or is difficult to see when in use. However, the non-plated portion 104 may be provided on a visible portion, and a pattern or picture may be drawn by combining the non-plated portion 104 with the plated portion that is plated. The non-plated portion 104 is formed, for example, by applying masking before plating.

[0034] The protective film layer 103 formed on the surface of the vapor-deposited plating layer 102 may be colored. By coloring, it is possible to give it a color tone different from the color of the metal used in the vapor-deposited plating layer 102. For example, coloring can be performed by mixing a pigment or dye into paint.

[0035] Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention. [Explanation of symbols]

[0036] 1. School bag 10 School bag body 11 Storage section 11a opening 11b Backrest 11c Bottom 12 Lid 12a downhill 13 Shoulder belt 20 Replacement parts for school bag fittings 30 tablets 31 Pedestal 32 Dharma Ring 33 Lock Unit 40 Dorsal ring 41 Base 42 Swing Arm 43 Connecting ring 44 Edge Gold 50 Hanging equipment 51 Hook part 52 Spring part 60 Buckle 61 Gaku 62 Tsukubo 100 Base material 101 Primer layer 102 Vapor deposition plating layer 103 Protective film layer 104 Non-plated parts

Claims

1. This school bag metal fittings substitute has a primer layer formed on the surface of a thermoplastic resin base material, a vapor deposition plating layer formed on the surface of the primer layer, and a protective film layer formed on the surface of the vapor deposition plating layer.

2. 2. The school bag metal fitting replacement according to claim 1, wherein the vapor deposition plating layer is formed by a discontinuous film.

3. 3. The school bag metal fitting substitute according to claim 1 or 2, wherein the protective film layer is colored.

4. 3. The school bag metal fitting substitute according to claim 1 or 2, wherein a non-plated portion is provided on the surface of the base material where no vapor deposition plating layer is formed.

5. 5. The school bag metal fitting substitute according to claim 4, wherein the non-plated portion is provided on a portion that overlaps with another component.

6. The school bag metal fittings substitute according to claim 1 or 2, wherein the base material is made of any one of polycarbonate resin, polybutylene terephthalate resin, polycarbonate / polybutylene terephthalate resin, polycarbonate / polyethylene terephthalate resin, polycarbonate / ABS resin, an alloy containing polycarbonate resin, an alloy containing polybutylene terephthalate resin, a copolyester resin, a cycloolefin resin, and an ABS resin.

7. 3. The school bag metal fittings substitute according to claim 1 or 2, wherein the base material is any one of a lock base, a daruma ring, a back ring edge metal, a back ring swing arm, a connecting ring attached to the swing arm, a hanging device, and a buckle.

8. A school bag using the school bag metal fitting substitute according to claim 1 or 2.

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