Method for manufacturing components for decorative items, and components for decorative items

Abstract

This invention provides a method for manufacturing decorative components that allows for the production of various decorative items without the need for welding. [Solution] A method for manufacturing a decorative member 10 that forms the basis of a decorative item 110, wherein the decorative member 10 is a continuous member cut from a metal plate into a predetermined planar shape, and has a plurality of linear parts cut into a linear shape with a thickness of 3 mm or less, and a predetermined plastic deformation process is performed on the decorative member 10, including bending or twisting at least a part of the plurality of linear parts, to obtain a decorative item 110 with a predetermined three-dimensional shape, by performing a design step to determine the planar shape of the decorative member 10 and a cutting step to cut out a metal plate into the planar shape determined by the design step.

Description

Technical Field

[0001] The present invention relates to three-dimensional ornaments and the like using metal materials.

Background Art

[0002] Three-dimensional ornaments using metal materials are generally produced by joining a plurality of members by welding or the like. Patent Document 1 describes a head ornament in which at least one ornament member is coupled to an ornament member.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In recent years, the performance of laser processing machines has improved, enabling precise processing of metal materials. The inventor of the present application has focused on the fact that a metal material can be cut out with high definition by a laser processing machine, and has conceived that various ornaments can be produced as ornaments obtained by plastically processing an ornament member according to the planar shape of a "continuous ornament member" cut out from a metal plate.

[0005] The present invention has been made in view of such circumstances, and an object thereof is to provide a method for manufacturing an ornament member capable of producing various ornaments without the need for welding.

Means for Solving the Problems

[0006] To solve the above-mentioned problems, the first invention is a method for manufacturing a decorative component that forms the basis of an ornament, wherein the decorative component is a continuous component cut from a metal plate into a predetermined planar shape, and has a plurality of linear portions cut into a linear shape with a thickness of 3 mm or less, and the decorative component is subjected to a predetermined plastic deformation process, including bending or twisting at least a portion of the plurality of linear portions, to obtain an ornament with a predetermined three-dimensional shape, and the method for manufacturing a decorative component involves a design step of determining the planar shape of the decorative component and a cutting step of cutting a metal plate into the planar shape determined by the design step.

[0007] The second invention relates to the first invention, wherein the decorative member has a first and second circular portion extending linearly around the entire circumference, and a connecting linear portion connecting the first and second circular portions, wherein the second circular portion has a plurality of bent or curved sections and is arranged inside the first circular portion, and in the design step, the planar shape of the decorative member is determined by performing at least a process of stretching at least a portion of the plurality of curved sections and processing the connecting linear portion as plastic processing, so that a decorative item can be obtained in which the surface formed by the first circular portion and the surface formed by the second circular portion face each other or intersect.

[0008] The third invention is that, in the design step of the second invention, the planar shape of the decorative member is determined such that a decorative item is obtained in which the second circumferential portion is substantially similar in shape to the first circumferential portion.

[0009] The fourth invention relates to the first invention, wherein the decorative member has a circumferential portion extending linearly around the circumference, a plurality of first pattern portions connected to the circumferential portion and arranged in the circumferential direction of the circumferential portion, and a plurality of second pattern portions connected to the circumferential portion and arranged in the circumferential direction of the circumferential portion, and in the design step, the planar shape of the decorative member is determined such that at least a portion of the part consisting of the plurality of first pattern portions and the plurality of second pattern portions is tubular, by performing a plastic deformation process in which the first pattern portions and the second pattern portions are bent to opposite sides at the connection points with the circumferential portion.

[0010] The fifth invention relates to the first invention, wherein the decorative member has a plurality of patterned sections arranged in a circumferential direction and a plurality of connecting linear sections connecting adjacent patterned sections, and in the design step, the planar shape of the decorative member is determined by performing at least a plastic deformation process in which the ends of the connecting linear sections are bent at the connection points with each of the patterned sections, and the connecting linear sections are bent so as to be folded back in the center, so as to obtain a decorative item in which each of the adjacent patterned sections is close to each other at the connection points with the connecting linear sections.

[0011] The sixth invention relates to the first invention, wherein the decorative member has an extended portion extending in a first direction and a side component provided continuously with the extended portion on one side in a second direction perpendicular to the first direction relative to the extended portion, and which constitutes a side surface of the decorative item. The decorative member has an inner component and an outer component provided at different positions relative to each other in the first direction, with the inner component and the outer component separated by a gap. In the design step, the planar shape of the decorative member is determined by performing at least two plastic deformation processes: bending the side component relative to the extended portion such that the inner component side is bent more than the outer component side, and bending the extended portion in a Z-shape in the thickness direction of the metal plate, so that a decorative item is obtained in which the outer component is located outside the inner component when viewed from the side.

[0012] The seventh invention is a decorative component that forms the basis of an ornament, the decorative component being a continuous component cut from a metal plate into a predetermined planar shape, having a plurality of linear portions cut into a linear shape with a thickness of 3 mm or less, and the planar shape of the decorative component is determined such that a predetermined three-dimensional ornament can be obtained by performing a predetermined plastic deformation process on the decorative component, which includes bending or twisting at least a portion of the plurality of linear portions. [Effects of the Invention]

[0013] In this invention, a decorative component is a continuous component cut from a metal plate into a predetermined planar shape, and has multiple linear portions cut into a linear shape with a thickness of 3 mm or less. In the design step, the planar shape of the decorative component is determined so that a predetermined three-dimensional decorative item can be obtained by performing a predetermined plastic deformation process on the decorative component, including bending or twisting at least a portion of the multiple linear portions. Then, the decorative component is obtained by cutting a metal plate into the planar shape determined in the design step. In this invention, a predetermined three-dimensional decorative item can be obtained by performing a predetermined plastic deformation process on the decorative component whose planar shape has been determined in the design step. Therefore, depending on how the planar shape of the decorative component is determined, various decorative items can be obtained from a continuous decorative component. According to this invention, it is possible to provide a method for manufacturing decorative components that can produce various decorative items without requiring welding. [Brief explanation of the drawing]

[0014] [Figure 1] Figure 1 is a plan view of a decorative component according to the first embodiment. [Figure 2] Figure 2 is a perspective view of an ornament obtained by performing a predetermined plastic deformation process on the ornament component shown in Figure 1. [Figure 3] Figure 3 is a plan view of a decorative component according to the second embodiment. [Figure 4] Figure 4 is a perspective view of an ornament obtained by performing a predetermined plastic deformation process on the ornament component shown in Figure 3. [Figure 5] Figure 5 is a plan view of a decorative component according to the third embodiment. [Figure 6] Figure 6 is a perspective view of an ornament obtained by performing a predetermined plastic deformation process on the ornament component shown in Figure 5. [Figure 7] Figure 7 is a plan view of a decorative component according to the fourth embodiment. [Figure 8] Figure 8 is a perspective view of an ornament obtained by performing a predetermined plastic deformation process on the ornament component shown in Figure 7. [Figure 9]FIG. 9 is a plan view of the member for ornament according to the fifth embodiment. [Figure 10] FIG. 10(A) is a perspective view of an ornament obtained by performing predetermined plastic working on the member for ornament of FIG. 9, and FIG. 10(B) is an enlarged view of the periphery of the portion indicated by reference numeral 59 in FIG. 10(A). [Figure 11] FIG. 11 is a plan view of the member for ornament according to the sixth embodiment. [Figure 12] FIG. 12(A) is a perspective view of an ornament obtained by performing predetermined plastic working on the member for ornament of FIG. 11, and FIG. 12(B) is an enlarged view showing the state after processing of a linear connecting portion connecting adjacent pattern portions in the ornament of FIG. 12(A). [Figure 13] FIG. 13 is a plan view of the member for ornament according to the seventh embodiment. [Figure 14] FIG. 14 is a perspective view of an ornament obtained by performing predetermined plastic working on the member for ornament of FIG. 13.

Embodiments for Carrying Out the Invention

[0015] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that the following embodiments are examples of the present invention and are not intended to limit the scope of the present invention, its applications, or its uses.

[0016] Hereinafter, the first to seventh embodiments will be described. Each embodiment is a member for ornament that serves as an ornament and a method for manufacturing the member for ornament. The member for ornament is a member that can be used to produce an ornament by plastic working such as hand working using a radio penti or the like. An ornament can be obtained from the member for ornament only by plastic working. Metals such as iron and stainless steel can be used as the material of the member for ornament.

[0017] Decorative components can be obtained by laser cutting a metal plate (e.g., a flat thin plate) into a predetermined shape using a laser processing machine. The decorative component is a continuous (single-piece) component cut from the metal plate into a predetermined planar shape, and has multiple linear sections cut out in a linear fashion. The thickness of the linear section (the larger of thickness and width) is, for example, 3 mm or less. In this case, the thickness of the metal plate is 3 mm or less, and the width of the linear section in the planar shape is 3 mm or less. The thickness of the linear section can also be 1.5 mm or less. In this case, the thickness of the metal plate is 1.5 mm or less, and the width of the linear section in the planar shape is 1.5 mm or less.

[0018] The planar shape of the decorative component is determined such that a decorative item with a predetermined three-dimensional shape can be obtained by performing a predetermined plastic deformation process on the decorative component, which includes bending or twisting at least a portion of several linear sections. The bending or twisting process results in the decorative item having a three-dimensional shape.

[0019] In the manufacturing method for decorative components, a design step and a cutting step are performed. In the design step, the planar shape of the decorative component is determined so that a decorative component with a predetermined three-dimensional shape can be obtained by performing a predetermined plastic deformation process on the decorative component, which includes bending or twisting multiple linear parts. Then, the decorative component is obtained by cutting a metal plate into the planar shape determined in the design step.

[0020] <First Embodiment> This embodiment is a planar decorative component 10 shown in Figure 1. By performing a predetermined plastic deformation on the decorative component 10, a cube-shaped die is obtained as the decorative item 110 shown in Figure 2. The decorative component 10 and the method for manufacturing the decorative component 10 will be described below. The predetermined plastic deformation process for producing the decorative item 110 from the decorative component 10 will not be described in its entirety, but will be described to the extent necessary. This is the same for other embodiments.

[0021] The decorative component 10 has a first circular section 11 and a second circular section 12 that extend linearly around the entire circumference, and four connecting linear sections 19 that extend linearly and connect the first circular section 11 and the second circular section 12, as linear sections. The first circular section 11 is circular in shape. The second circular section 12 is roughly cross-shaped and has multiple bent or curved sections (bent parts) B. The entire second circular section 12 is located inside the first circular section 11.

[0022] Each connecting linear section 19 has a winding shape. In Figure 1, the connection point of the connecting linear section 19 to the first circular section 11 is denoted by the symbol C1, and the connection point of the connecting linear section 19 to the second circular section 12 is denoted by the symbol C2.

[0023] In the design step described above, the planar shape of the decorative member 10 is determined such that a decorative item (cube-shaped decorative item) 110 is obtained in which the surface formed by the first circumferential portion 11 and the surface formed by the second circumferential portion 12 face each other, by performing at least two plastic deformation processes: stretching at least a portion of the multiple curved portions B (processing of the second circumferential portion 12) and bending the connecting linear portion 19. In the design step, the planar shape of the decorative member 10 is also determined such that a decorative item 10 is obtained in which the second circumferential portion 12 is substantially similar in shape to the first circumferential portion 11. Then, in the cutting step, the decorative member 10 is obtained by cutting a metal plate into the planar shape determined in the design step.

[0024] In the decorative component 10, the linear portion between adjacent connection points C1 in the circumferential direction in the first circumferential portion 11, the linear portion between adjacent connection points C2 in the circumferential direction in the second circumferential portion 12, and the connecting linear portion 19 each become one side of a cube in the decorative item 110.

[0025] In the predetermined plastic deformation process, the first circumferential portion 11 is bent at approximately a right angle at the connection point C1, and the arc portion between the connection points C1 is straightened, so that the first circumferential portion 11 takes on the shape of a square with the connection points C1 as corners. The second circumferential portion 12 is bent at approximately a right angle at the connection point C2, and the curved portion B other than the connection point C2 is straightened, so that the second circumferential portion 12 takes on the shape of a square with the connection point C2 as a corner.

[0026] Furthermore, each connecting linear portion 19 is processed such that the first circular portion 11 and the second circular portion 12 move away from each other. This is done by bending it at approximately a right angle to the first circular portion 11 at connection point C1, bending it at approximately a right angle to the second circular portion 12 at connection point C2, and straightening the intermediate portion of the connecting linear portion 19 other than the connection points C1 and C2.

[0027] In the decorative component 10, the first circular portion 11, the second circular portion 12, and each connecting linear portion 19 form the basis of the skeletal part that defines the external shape of the decorative item 110. In addition to the skeletal part, the decorative item 110 is equipped with a decorative portion 18 that decorates the skeletal part. In Figure 2, the decorative portion 18 is equipped with a circular planar portion 18a representing the faces of a die and a supporting linear portion 18b for supporting the planar portion 18a. The decorative portion 18 is cantilevered, with only one end connected to another component. Note that the "planar portion" is a part that does not have a linear shape.

[0028] In the decorative component 10, a portion of the support wire portion 18b of the decorative part 18 extends outward from the connection point C3 with the first circular part 11. Part of the connection point C3 is located in the same place as connection point C1. The remaining support wire portion 18b of the decorative part 18 extends inward from the connection point C4 with the second circular part 12. Each connection point C4 is located in the same place as connection point C2. In a predetermined plastic deformation process, the base of each support wire portion 18b is bent at approximately a right angle to the first circular part 11 or the second circular part 12.

[0029] <Second Embodiment> This embodiment is a planar decorative member 20 shown in Figure 3. By performing a predetermined plastic deformation on the decorative member 20, the decorative item 120 shown in Figure 4 is obtained. The decorative item 120 has a rugby ball shape. The decorative member 20 and other components will be described below.

[0030] The decorative component 20 has a first circular section 21 and a second circular section 22 that extend linearly around the circumference, and two connecting linear sections 29 that extend linearly and connect the first circular section 21 and the second circular section 22, as linear sections. The first circular section 21 is substantially elliptical in shape. The first circular section 21 is provided with decorative sections 27 at two locations. The second circular section 22 is horizontally elongated in shape, similar to the first circular section 21 in Figure 3, and has multiple bent or curved sections B. The entire second circular section 22 is located inside the first circular section 21.

[0031] Each connecting linear section 29 is a short, straight line. One of the two connecting linear sections 29 connects one longitudinal end of the first circular section 21 to one longitudinal end of the second circular section 22, while the other connects the other longitudinal end of the first circular section 21 to the other longitudinal end of the second circular section 22.

[0032] In the design step described above, the planar shape of the decorative member 20 is determined such that a decorative item 120 is obtained in which the surface formed by the first circumferential portion 21 and the surface formed by the second circumferential portion 22 intersect, by performing at least two plastic deformation processes: stretching at least a portion of the multiple curved portions B (processing of the second circumferential portion 22) and twisting the connecting linear portion 29. In the design step, the planar shape of the decorative member 20 is also determined such that a decorative item 120 is obtained in which the second circumferential portion 22 is substantially similar in shape to the first circumferential portion 21. The decorative member 20 is then obtained by cutting a metal plate into the planar shape determined in the design step.

[0033] In the predetermined plastic deformation process, each connecting linear portion 29 is twisted so that the second circumferential portion 22 is substantially perpendicular to the first circumferential portion 21. Then, the curved portion B of the second circumferential portion 22 is stretched so that it takes on a substantially elliptical shape. After processing, the second circumferential portion 22 has a substantially elliptical shape that is slightly smaller than that of the first circumferential portion 21.

[0034] Furthermore, the decorative component 20 has multiple inner circumferential portions 23 extending linearly around the inside of the second circumferential portion 22 as linear portions. The multiple inner circumferential portions 23 are arranged in the longitudinal direction of the second circumferential portion 22. Each inner circumferential portion 23 is connected to the second circumferential portion 22 by two linear connecting portions 28.

[0035] In the predetermined plastic deformation process, each linear connecting portion 28 is twisted so that each inner circumferential portion 23 is substantially perpendicular to the second circumferential portion 21, and each inner circumferential portion 23 is stretched to form a circular shape.

[0036] <Third Embodiment> This embodiment is a planar decorative member 30 shown in Figure 5. By performing a predetermined plastic deformation process on the decorative member 30, a small table can be obtained as the decorative item 130 shown in Figure 6. The decorative member 30 and other components will be described below.

[0037] The decorative component 30 has a surface portion 31 that forms the tabletop of the decorative item 130, as well as a circumferential portion 32 that extends linearly around the table and four connecting linear portions 39 that connect the surface portion 31 and the circumferential portion 32, which serve as the legs of the table. The surface portion 31 and the circumferential portion 32 are each approximately rectangular in shape. Each connecting linear portion 39 connects each corner of the surface portion 31 to each corner of the circumferential portion 32.

[0038] In the design step described above, the planar shape of the decorative member 30 is determined such that the decorative item 130 can be obtained by performing at least a process of bending the circumferential portion 32 and each connecting linear portion 39 as a predetermined plastic deformation. Then, in the cutting step, the decorative member 30 is obtained by cutting out the metal plate into the planar shape determined in the design step.

[0039] In this embodiment, the circumferential portion 32 of the decorative member 30 is provided with notches 35 and 36 at locations to be bent during a predetermined plastic deformation process. The circumferential portion 32 has a notch 35 provided on the inside and a notch 36 provided on the outside.

[0040] In the predetermined plastic deformation process, the connecting linear portions 39 are bent at the connection points between the planar portion 31 and the connecting linear portions 39 so that each connecting linear portion 39 extends downward from the planar portion 31, and the circumferential portion 32 is bent at the locations of the notches 35 and 36. In the deformation of the circumferential portion 32, the notches 35 are bent outward and the notches 36 are bent inward.

[0041] The decorative component 30 has decorative parts 38 that serve as decorations around the tabletop, provided on the outside of each side of the planar part 31. In a predetermined plastic deformation process, the decorative parts 38 are bent at the connection points between the planar part 31 and the decorative parts 38 so that each decorative part 38 extends downward from the planar part 31.

[0042] <Fourth Embodiment> This embodiment is a planar decorative member 40 shown in Figure 7. By performing a predetermined plastic deformation on the decorative member 40, a unicorn is obtained as the decorative item 140 shown in Figure 8. The decorative member 40 and other related parts will be described below.

[0043] The decorative component 40 is provided with the head 41, neck 42, torso leg 43, and tail 44 in a continuous order in the first direction, which is the front-to-back direction, of the decorative component 140. The torso leg 43 has a back portion 43a that extends straight in the first direction, and first side portions 43b and second side portions 43c provided on both sides of the back portion 43a in a second direction perpendicular to the first direction. Each side portion 43b, 43c extends to form the front legs and hind legs, and the abdomen between the front legs and hind legs.

[0044] The neck portion 42 also has a linear portion 42a that extends straight in a first direction, and a first front side portion 42b and a second front side portion 42c provided on both sides of the linear portion 42a in a second direction. The linear portion 42a extends straight forward from the back portion 43a.

[0045] In the predetermined plastic deformation process, the body leg portion 43 is bent at the connection points between the back portion 43a and the side portions 43b and 43c so that each side portion 43b and 43c extends downward from the back portion 43a. The neck portion 42 is also bent so that it extends diagonally upward and forward from the body leg portion 43, and the front side portions 42b and 42c are bent at the connection points between the linear portion 42a and the front side portions 42b and 42c so that each front side portion 42b and 42c extends diagonally downward from the linear portion 42a. The linear portion of the body leg portion 43 is also bent at its base so that the tail portion 44 approaches the body leg portion 43.

[0046] <Fifth Embodiment> This embodiment is a planar decorative member 50 shown in Figure 9. By performing a predetermined plastic deformation process on the decorative member 50, a chess piece is obtained as the decorative item 150 shown in Figure 10. The decorative member 50 and other related parts will be described below.

[0047] The decorative component 50 has a circumferential portion 51 that extends linearly around the circumference, a plurality of first pattern portions 52 connected to the circumferential portion 51 and arranged in the circumferential direction of the circumferential portion 51, and a plurality of second pattern portions 53 connected to the circumferential portion 51 and arranged in the circumferential direction of the circumferential portion 51. In the circumferential portion 51, the plurality of first pattern portions 52 are connected at equal angular intervals in the circumferential direction of the circumferential portion 51, and the plurality of second pattern portions 53 are also connected at equal angular intervals. In the circumferential portion 51, the first pattern portions 52 and the second pattern portions 53 are connected alternately in the circumferential direction of the circumferential portion 51. The pattern portions 52 and 53 are parts that have a frame-like portion whose outer circumference is formed by a linear portion.

[0048] The decorative component 50 has a plurality of second pattern portions 53 arranged in a circumferential direction, as well as a plurality of connecting linear portions 59 that connect adjacent second pattern portions 53. Each connecting linear portion 59 is positioned outside the circumferential portion 51. The plurality of connecting linear portions 59 are arranged to have a substantially octagonal shape along a virtual annular line coaxial with the circumferential portion 51.

[0049] In the design step described above, the planar shape of the decorative member 50 is determined such that, as a predetermined plastic deformation process, at least a process is performed to bend the first pattern portion 52 and the second pattern portion 53 toward opposite sides at the connection point with the circumferential portion 51, thereby obtaining a decorative item 150 in which at least a part of the portion consisting of multiple first pattern portions 52 and multiple second pattern portions 53 exhibits a cylindrical shape. In the design step, the planar shape of the decorative member 50 is also determined such that, as a predetermined plastic deformation process, at least a process is performed to bend the end of the connecting linear portion 59 at the connection point with each pattern portion 52, 53, and to bend the connecting linear portion 59 so as to fold it back in the middle, thereby obtaining a decorative item 150 in which the connection points with the connecting linear portion 59 of each adjacent second pattern portion 53 are close to each other. Then, in the cutting step, the decorative member 50 is obtained by cutting a metal plate into the planar shape determined in the design step.

[0050] In the predetermined plastic deformation process, each first pattern portion 52 is bent downwards, and each second pattern portion 53 is bent upwards, thereby forming the cylindrical portion described above. Furthermore, each second pattern portion 53 is bent inwards at the top and upwards at the upper end.

[0051] Furthermore, in the predetermined plastic deformation process, as shown in Figure 10(B), each connecting linear portion 59 is bent to form a roughly V-shape with a small angle. Specifically, in this process, the ends of the connecting linear portion 59 are bent at the connection points with each pattern portion 52, 53, and the connecting linear portion 59 is bent so as to fold back in the center. This processing of each connecting linear portion 59 prevents each second pattern portion 53 from opening outward in the decorative item 150.

[0052] <Sixth Embodiment> This embodiment is a planar decorative member 60 shown in Figure 11. By performing a predetermined plastic deformation on the decorative member 60, the decorative item 160 shown in Figure 12 is obtained. The decorative item 160 has a star shape. The decorative member 60 and other components will be described below.

[0053] The decorative component 60 has a plurality of patterned sections 61 arranged in a circumferential direction, and a plurality of connecting linear sections 69 connecting adjacent patterned sections 61. The plurality of connecting linear sections 69 are provided along an annular imaginary line. The plurality of patterned sections 61 extend radially from the annular section formed by the plurality of connecting linear sections 69. The patterned section 61 is a portion having a plurality of planar sections 61a, 61b.

[0054] The inner end of each pattern section 61 is connected to a connecting linear section 69. A slit 61c is formed in the pattern section 61, extending from the inner end to the outer end. The pattern section 61 is composed of two triangular sections 61a and 61b, which are formed symmetrically on either side of the slit 61c. Each triangular section 61a and 61b has a vertex angle when the slit 61c side is considered the base. Adjacent pattern sections 61 are connected to each other at the vertex angle.

[0055] In the design step described above, the planar shape of the decorative member 60 is determined such that, as a predetermined plastic deformation process, each end of the connecting linear portion 69 at the connection point with the pattern portion 61 is bent, and the connecting linear portion 69 is bent back in the middle, thereby obtaining a decorative item 160 in which each adjacent pattern portion 61 is close to the other at the connection point with the connecting linear portion 69. In the design step, the planar shape of the decorative member 60 is determined such that, as a predetermined plastic deformation process, each pattern portion 61 is folded in a mountain shape at the position of the slit 61c, thereby obtaining a star-shaped decorative item 160 in which each pattern portion 61 is processed three-dimensionally. Then, in the cutting step, the decorative member 60 is obtained by cutting the metal plate into the planar shape determined in the design step.

[0056] Figure 12(B) shows the connecting linear portion 69 after processing. Inside the adjacent pattern portions 61, the connecting linear portion 69 extends downward from the connection point with one pattern portion 61, folds upward in the middle, and reaches the connection point with the other pattern portion 61.

[0057] <Seventh Embodiment> This embodiment is a planar decorative member 70 shown in Figure 13. By performing a predetermined plastic deformation on the decorative member 70, the decorative item 170 shown in Figure 14 is obtained. The decorative item 170 has the shape of a motorcycle. The decorative member 70 and other components will be described below.

[0058] The decorative member 70 has an extended portion 71 extending in a first direction, and a pair of side components 72 provided on both sides of the extended portion 71 in a second direction perpendicular to the first direction, and continuous with the extended portion 71. Each side component 72 forms a side surface of the decorative item 170. In the decorative member 70, each side component 72 has an inner component 73 and an outer component 74 provided at different positions in the first direction, with the inner component 73 and the outer component 74 separated by a gap. A notch 75 extends from the outside to the inside between the inner component 73 and the outer component 74.

[0059] The decorative component 70 further includes a tire section T, a handle section H, a muffler section M, and a front cowl section C. The extension section 71 extends from the handle section H to the rear in the first direction and includes a tank section 71a and a seat section 71b. In this embodiment, the front-rear direction of the decorative component 70 is defined in correspondence with the front and rear of the decorative component 170. This front-rear direction coincides with the first direction.

[0060] In the design step described above, the planar shape of the decorative member 70 is determined such that, when viewed from the side, the decorative member 170 is obtained in which the outer component 72b is located outside (overlapping) the inner component 72a when viewed from the side, by performing at least two plastic deformation processes: bending the side component 72 relative to the stretched portion 71 so that the inner component 72a is bent more than the outer component 72b, and bending the stretched portion 71 in a Z-shape in the thickness direction of the metal plate (the thickness direction of the paper in Figure 13).

[0061] Figure 14 shows a dashed line A with two bends along the Z-shaped portion of the extended section 71. In addition to this Z-shaped processing, the base of the inner component 72a (the connection point with the seat section 71b) is bent more significantly than the base of the outer component 72b (the connection point with the tank section 71a). As a result, the inner component 72a, which was located behind the outer component 72b in the decorative member 70, is located just outside the inner component 72a in the decorative item 170.

[0062] <Effects of the Embodiment of the Invention> According to the first to seventh embodiments, various ornaments can be obtained from a continuous set of ornament components, depending on how the planar shape of the ornament components is determined. Therefore, it is possible to provide a method for manufacturing ornament components that can produce various ornaments without requiring welding.

[0063] [Other embodiments] In the above embodiment, a separate fastener may be attached to the ornament in order to maintain the shape of the ornament after plastic deformation.

[0064] In the above embodiment, the linear portion may be twisted as appropriate. [Industrial applicability]

[0065] This invention is applicable to three-dimensional ornaments and the like made from metal materials.

[0066] In this embodiment, in all linear portions included in the decorative component, the thickness of the linear portion having a relatively large bend during plastic deformation may be made thinner than the other linear portions. [Explanation of Symbols]

[0067] 10. Components for decorative items 11. First lap 12. Second lap 19 Connecting wire section 20. Components for decorative items 21. First lap 22 Second lap 29 Connecting linear section 30 Decorative components 31 Planar part 32 Loop Section 39 Connecting linear section 40 Decorative components 43b Side part 50 Decorative components 51 Loop Section 52 First Pattern Section 53. Second Pattern Section 59 Connecting linear section 60 Decorative components 61 Pattern section 69 Connecting Line Section 70 Decorative components 71 Stretching section 72 Side component 73 Inner component 74 Outer components 110 Decorative items 120 decorative items 130 Decorative items 140 Decorative items 150 decorative items 160 Decorative items 170 Decorative items

Claims

1. A method for manufacturing decorative components that form the basis of decorative items, The aforementioned decorative component is a continuous component cut from a metal plate into a predetermined planar shape, and has multiple linear sections cut out in a linear shape with a thickness of 3 mm or less. A design step to determine the planar shape of the decorative member so that a decorative item with a predetermined three-dimensional shape can be obtained by performing a predetermined plastic deformation on the decorative member, which includes bending or twisting at least a portion of the plurality of linear portions, A method for manufacturing a decorative component, comprising: a cutting step of cutting out the metal plate into a planar shape determined by the design step; and a cutting step of cutting out the metal plate into the planar shape determined by the design step.

2. The decorative member has a first circular portion and a second circular portion that extend linearly around the entire circumference, and a connecting linear portion that connects the first circular portion and the second circular portion. In the aforementioned decorative member, the second circumferential portion has a plurality of bent or curved sections and is positioned inside the first circumferential portion. The method for manufacturing a decorative member according to claim 1, wherein in the design step, the planar shape of the decorative member is determined such that the decorative member is obtained in which the surface formed by the first circumferential portion and the surface formed by the second circumferential portion face each other or intersect, by performing at least the plastic deformation process of stretching at least a portion of the plurality of curved portions and processing the connecting linear portion.

3. The method for manufacturing a decorative member according to claim 2, wherein in the design step, the planar shape of the decorative member is determined such that the decorative member is obtained in which the second circumferential portion is substantially similar in shape to the first circumferential portion.

4. The decorative member has a circumferential portion that extends linearly around the circumference, a plurality of first pattern portions connected to the circumferential portion and arranged in the circumferential direction of the circumferential portion, and a plurality of second pattern portions connected to the circumferential portion and arranged in the circumferential direction of the circumferential portion. The method for manufacturing a decorative member according to claim 1, wherein in the design step, the planar shape of the decorative member is determined such that, as the plastic deformation step, at least the first pattern portion and the second pattern portion are bent to opposite sides at the connection point with the circumferential portion, thereby obtaining the decorative member in which at least a part of the portion consisting of the plurality of first pattern portions and the plurality of second pattern portions exhibits a cylindrical shape.

5. The decorative member has a plurality of patterned portions arranged in a circumferential direction and a plurality of connecting linear portions that connect adjacent patterned portions. The method for manufacturing an ornamental member according to claim 1, wherein in the design step, the planar shape of the ornamental member is determined such that an ornament is obtained in which each of the adjacent pattern portions is close to each other at the connection point with the connection line portion, by performing at least the plastic deformation process of bending the end of the connecting linear portion at the connection point with each of the pattern portions and bending the connecting linear portion so as to fold it back in the middle.

6. The decorative member has an extended portion extending in a first direction, and a side component that is provided continuously with the extended portion on one side in a second direction perpendicular to the first direction relative to the extended portion and constitutes a side surface in the decorative item. In the decorative member, the side component has an inner component and an outer component that are provided at different positions in the first direction, and the inner component and the outer component are separated by a gap. The method for manufacturing an ornamental member according to claim 1, wherein in the design step, the planar shape of the ornamental member is determined such that, when viewed from the side, the ornament is obtained by performing at least the following plastic deformation processes: bending the side component relative to the stretched portion such that the inner component is bent more than the outer component; and bending the stretched portion in a Z-shape in the thickness direction of the metal plate.

7. A component for decorative items that forms the basis of decorative items, The aforementioned decorative component is a continuous component cut from a metal plate into a predetermined planar shape, and has multiple linear sections cut out in a linear shape with a thickness of 3 mm or less. A decorative member, wherein the planar shape of the decorative member is determined such that a decorative item with a predetermined three-dimensional shape can be obtained by performing a predetermined plastic deformation process on the decorative member, which includes bending or twisting at least a portion of the plurality of linear portions.

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