Craft kit

Abstract

To simplify the manufacturing step of a craft kit and to easily manufacture it.SOLUTION: A craft kit 100 of the present invention includes a leather sheet 110 having a cutout portion 115 and a base portion 118 provided around the cutout portion 115, and metal fittings 130, 150, 170 attached to the cutout portion 115 cut out from the leather sheet 110, and the leather sheet 110 is provided with alternating slits 111, 112, 113 and portions 114 between the slits that form the outline of the cutout portion 115.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a craft kit.

Background Art

[0002] Patent Document 1 describes a technique capable of producing various three-dimensional leather foldings such as origami cranes by folding a sheet-like leather fabric along fold lines provided at predetermined positions. Specifically, on the surface side of the leather fabric, a fold line for folding into a three-dimensional folding shape and a half-cut-like cut line along the fold line are provided, and it is described that a leather three-dimensional folding is formed by valley-folding the cut line.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in leather craft that has been generally practiced conventionally, there are a number of processes such as a process of cutting a leather sheet along a pattern paper, a process of making marks for making sewing holes in the cut leather sheet, a process of adhering the seam allowances of the leather sheets with an adhesive, a process of making sewing holes, a process of sewing, a process of smoothing the edges (cut surfaces) of the leather sheets, a process of applying a floor treatment agent to the edges, and a process of polishing the edges.

[0005] Although the above leather craft can produce leather products according to one's preference, its manufacturing process is complicated and diverse, so it has been difficult to manufacture for beginners of leather craft, children, etc. Therefore, an object of the present invention is to provide a craft kit that can be easily manufactured by simplifying the manufacturing process.

Means for Solving the Problems

[0006] To achieve the above object, the craft kit of the present invention includes a leather sheet having a cut-out portion and a base portion provided around the cut-out portion, and a metal fitting attached to the cut-out portion cut out from the leather sheet, and the leather sheet is characterized in that cut portions and uncut portions that form the outer shape of the cut-out portion are alternately provided.

[0007] Further, the craft kit of the present invention is characterized in that a runner-like pattern extending toward each of the uncut portions is displayed on the base portion.

Effects of the Invention

[0008] The craft kit of the present invention simplifies the manufacturing process and can be easily manufactured.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Modes for Carrying Out the Invention

[0010] With reference to FIG. 1, the configuration of the craft kit according to the embodiment of the present invention will be described. The craft kit 100 according to the present embodiment is a kit for manufacturing a strap 101 (FIG. 4(c)), which is a leather accessory, and includes a leather sheet 110, a hook fitting 130, a ring fitting 150, and a button fitting 170.

[0011] The leather sheet 110 is a leather sheet having a thickness of about 2 mm and is formed in a vertically long rectangular shape. The type of the leather is obtained by treating the raw hide of animals typified by cows and horses with chemicals, and typically, the leather is tanned using tannin. Note that the thickness of the leather sheet 110 of the present invention is not limited to 2 mm, and the leather sheet 110 may be thinner or thicker than the thickness. Further, the shape of the leather sheet 110 is not limited to a vertically long rectangle, and may be other shapes.

[0012] The above leather sheet 110 is subjected to a punching process typified by Thomson processing, and by this punching process, linear slits 111, L-shaped slits 112, and U-shaped slits 113 are formed. Each of these slits 111, 112, 113 functions as a cut portion provided in advance with respect to the leather sheet 110, and is formed symmetrically on the left and right. Specifically, the two linear slits 111 formed on each of the left and right are formed so as to extend parallel to the longitudinal direction. Two L-shaped slits 112 are formed on one end side of each of the linear slits 111. The two L-shaped slits 112 extend in the longitudinal direction from one end side of the linear slit 111 and extend in the short direction from the tip thereof toward the center. Also, two U-shaped slits 113 are formed on the other end side of each of the linear slits 111. The U-shaped slits 113 extend in the longitudinal direction from the other end side of the linear slit 111 and extend from the tip thereof toward the center. The portion 114 between each slit functions as an uncut portion that is not cut. Note that the slit lengths (also referred to as "cut lengths") of these plurality of slits 111, 112, 113 and the intervals between the slits 114 (also referred to as "cut intervals") are not limited to the illustrated embodiments, but the cut length is preferably formed to be sufficiently longer than the cut interval.

[0013] By alternately forming the plurality of slits 111, 112, 113 (cut portions) and the portions 114 between the slits (uncut portions), an outline for forming a strip-shaped cutout portion 115 is formed. The cutout portion 115 is a portion to be cut out by the user and is a portion that constitutes the main body of the strap 101 through a subsequent manufacturing process. The cutout portion 115 is provided in a substantially central portion of the leather sheet 110. Two holes 116 are provided on one end side of the cutout portion 115, and one hole 117 is provided on the other end side.

[0014] Outside the above outline, that is, outside the cutout portion 115, a base portion 118 is formed. The cutout portion 115 and the base portion 118 are connected via the portion 114 between the above slits.

[0015] On the surface of the base portion 118, a runner-like pattern 119 (hereinafter referred to as "runner pattern 119") is displayed. Here, the runner pattern 119 is a pattern imitating a rod-shaped member, i.e., a so-called runner, provided so as to surround the periphery of the parts in the plastic model, and is displayed by engraving or printing such as laser engraving, stamping, embossing, or marking. The runner pattern 119 includes a frame-shaped pattern 119a and a plurality of branch-shaped patterns 119b. The frame-shaped pattern 119a is a square-shaped pattern. Each of the branch-shaped patterns 119b is a pattern extending from the frame-shaped pattern 119a toward the cutout portion 115. Each branch-shaped pattern 119b is displayed so as to correspond to the portion 114 between the slits. Specifically, the tip (inner end) of each branch-shaped pattern 119a is displayed so as to reach the portion 114 between the slits. Thereby, the portion 114 between the slits functions similarly to a gate in the plastic model. Also, the cutout portion 115 functions similarly to a part in the plastic model.

[0016] The hook fitting 130 is a fitting that functions as a hook for attaching the strap 101 to a predetermined part, and includes a hook portion 131 and a ring portion 132 connected to the lower end portion of the hook portion 131. The ring fitting 150 is a ring-shaped fitting. The button fitting 170 is a fitting called a so-called giboshi, and includes a main body fitting 171 and a screw fitting 172. The main body fitting 171 includes a button-shaped portion 173 and a base portion 174 formed with a female screw. A male screw is formed on the screw fitting 172, and the main body fitting 171 and the screw fitting 172 are connected by screwing the male screw into the female screw of the main body fitting 171. It is preferable that a groove into which the edge of a coin can be fitted is formed in the head of the screw fitting 172 so that the screw fitting 172 can be screwed using a coin.

[0017] Next, based on FIGS. 2-4, the manufacturing process of the above-mentioned craft kit 100 will be described. The manufacturing process includes a cutting process, a chamfering process, and an assembling process. Hereinafter, each process will be described.

[0018] As shown in FIG. 2, the cutting process is a process of cutting out the cut-out portion 115 from the leather sheet 110. In this cutting process, cutting tools such as scissors or cutters are used, and the portion 114 between the slits is cut. Thereby, the cut-out portion 115 is cut out along the outline formed by the plurality of slits 111, 112, 113. The cut-out portion 115 cut out in this way constitutes the belt part 115a (FIG. 3) in the strap.

[0019] As shown in FIG. 3, the edge treatment process is a process of performing edge treatment on the cut surface (edge) of the belt part 115a. The edge treatment process includes a first polishing process (FIG. 3(a)) of polishing the cut surface using sandpaper, an application process (FIG. 3(b)) of applying varnish or an edge treatment agent to the cut surface, and a second polishing process (FIG. 3(c)) of polishing the cut surface to which the treatment agent has been applied. By this edge treatment process, it is possible to improve the durability of the cut surface while removing irregularities and fraying on the cut surface.

[0020] As shown in FIG. 4, the assembly process is a process of attaching various metal fittings 130, 150, 170 to the belt part 115a. In this assembly process, the ring part 132 (FIG. 1) of the hook fitting 130 and the ring fitting 150 are passed through one end of the belt part 115a, and the one end is folded back to align the two holes 116 (FIG. 1). Then, the button fitting 170 is attached to the two holes so as to sandwich the folded belt part 115a. Thereby, the strap 101 is completed.

[0021] When using the strap 101, as shown in FIG. 4(c), the other end side of the belt part 115a is folded back, and the button-shaped part 173 of the button fitting 170 is passed through the hole 117 on the other end side. Thereby, the belt part 115a is formed in an annular shape. Therefore, for example, after passing the belt part 115a through the handle of a cup and forming the belt part 115a in an annular shape, it can be used as a strap 101 that can suspend the cup.

[0022] In the leather sheet 110 of this embodiment, since the outline of the cutout portion 115 is formed by a plurality of slits 111, 112, and 113, the user only needs to cut only the portion 114 between the slits in the cutting process. In this way, compared with the conventional cutting process (the process of cutting all the outlines of the parts to be cut out), the cutting of the parts is simplified, so that the belt part 115a of the strap 101 can be easily obtained. In addition, compared with the conventional manufacturing process of leather accessories, since the number of process types is small, it can be easily manufactured.

[0023] Further, a runner pattern 119 is displayed on the base portion 118 of the leather sheet 110 of this embodiment. The portion 114 between the slits functions like the gate of a plastic model, and the cutout portion 115 functions like the part of a plastic model. Therefore, the user can perform the operation of cutting out the cutout portion 115 from the leather sheet 110 in the feeling of manufacturing a plastic model.

[0024] As described above, the embodiments of the present invention have been described, but the present invention is not limited to the above embodiments, and the following modifications may be made.

[0025] As shown in FIG. 5, in the leather sheet 110a of the present invention, the outline of the cutout portion 115 may be formed by a plurality of punched portions 111a, 112a, and 113a. The punched portions 111a, 112a, and 113a function as cut portions provided in advance with respect to the leather sheet 110a, and the portion 114a between the punched portions functions as an uncut portion. According to this modification, since it is easy to insert scissors into the punched portions 111a, 112a, and 113a, the cutting process can be further simplified.

[0026] In the above embodiment, the branch pattern 119b in the runner pattern 119 extends toward each of the portions 114 (uncut portions) between the slits, but the present invention is not limited to this aspect, and any aspect in which the branch pattern 119b extends toward the cutout portion 115 may be used.

[0027] The craft kit of the present invention is not limited to a kit for manufacturing the strap 101, and may be a kit for manufacturing small leather goods such as the key holder 102 and the glasses holder 103 as shown in FIG. 6. Therefore, the shape of the cut-out portion can be appropriately determined according to the small leather goods to be manufactured, and the cut portion and the uncut portion are provided according to the shape of the cut-out portion. Further, the metal fittings to be used are determined according to the use of the small leather goods to be manufactured.

Explanation of Signs

[0028] 100 Craft kit 110 Leather sheet 111 Linear slit (cut portion) 112 L-shaped slit (cut portion) 113 S-shaped slit (cut portion) 114 Portion between slits (uncut portion) 115 Cut-out portion 118 Base portion 119 Runner pattern (runner-shaped pattern) 130 Hook fitting 150 Ring fitting 170 Button fitting

Claims

1. A leather sheet having a cut-out portion and a base portion provided around the cut-out portion, A fitting attached to the cut-out portion cut out from the leather sheet, Comprising, In the leather sheet, a cut portion and an uncut portion that alternately form the outline of the cut-out portion are provided, characterized in that it is a craft kit.

2. The craft kit according to claim 1, characterized in that a runner-like pattern extending toward each of the uncut portions is displayed on the base portion.

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