JPWO2012004870A1 - Decorative part and method for forming the same - Google Patents

Abstract

A metallic decorative part (10) is provided that is attached to the fabric (1) using a fastener (20) having a shank (22). The decorative part (10) is provided on the front surface (11a) of the component main body (11) provided with a vertically and / or left-right asymmetric decoration (12), and on the back surface (11b) side of the component main body (11). A shaft portion locking portion (13) for locking the shaft portion (22) of the stopper (20). The shaft portion locking portion (13) receives the cylindrical portion (14) protruding from the back surface (11b) and the shaft portion (22) on the radially inner side of the cylindrical portion (14), and deforms and locks it. And a locking space (15). In forming the decorative part (10), the intermediate part main body (151) serving as the part main body (11), the intermediate cylindrical part (154) serving as the cylindrical part (14) and the locking space (15), and the intermediate member are provided. An intermediate part (150) having a stop space (155) is pressed between the upper and lower dies (160, 170). In this pressing step, one die (160) reduces the inner diameter of the intermediate cylindrical portion (154) in the projecting direction and processes it into the cylindrical portion (14). At the same time, the outer peripheral surface (14) of the cylindrical portion (14) is processed. A mark (16) composed of a concave portion and / or a convex portion for grasping the orientation of the decoration (12) from the back surface (11b) side is provided on ').

Description

  The present invention generally relates to a decorative part and a method for forming the decorative part, and more particularly to a decorative part such as a decorative button having a decoration having a vertical or horizontal direction on its surface, and a method for forming such a decorative part.

  Conventionally, decorative parts used in combination with rivet members and bar members are not limited to, for example, garment ornaments, belts and bag decorations, but sheet materials such as woven fabrics and nonwoven fabrics made of various materials. As a means to further improve the design of these decorative parts, for example, decorations having vertical and horizontal directions on the surface of the bar member, such as letters, figures, symbols, etc. It may be formed by printing or other methods.

  However, in general, in the process of combining a rivet member with a sheet-like member such as a cloth sandwiched between the bar member, the surface of the bar member may be set with the decoration formed on the mounting die, It is necessary to provide some mark on the back side for discriminating the direction of the decoration in the vertical and horizontal directions.

  Conventionally, there is a small protrusion such as a potch as the mark on the back side of the flange part of the bar member, but when the bar member is set face down on the mounting die, those marks do not come to the front side, The center part of the bar member may be in the way, and the mark cannot be easily seen, or the flange part is "buried" in the shadow made by the peripheral frame part of the die, and the mark is difficult to see or may not be visible at all depending on the angle, This is a problem in determining the direction of the top and bottom or left and right of the decoration.

  In addition, when die-casting the bar member, it is necessary to raise a new mold in order to form a small protrusion for the mark on the back side of the flange portion, resulting in troubles in production and cost. It was. A conventional example in which the bar member is a die-cast molded product is disclosed in, for example, Japanese Patent Application Laid-Open No. 63-303642. In this structure, a projecting pattern or the like as a decoration is formed on the surface side of the flange portion, and the center protrusion is simply drawn or curled toward the tip.

  Japanese Patent Publication No. Sho 62-50565 discloses an example of the prior art in which a structure that serves as a mark for discriminating the direction of the decoration to be formed on the decorative part is provided on the back side of the flange portion. In this structure, the engaging portion formed by cutting out the surface member of the button is used as a mark for determining the directionality. However, the engaging portion is arranged in the center and below the decoration having an arrow-shaped pattern, that is, a right-and-left directionality. Therefore, intuitive visibility regarding the directionality of the pattern cannot be obtained.

Japanese Patent Laid-Open No. 63-303642 Japanese Examined Patent Publication No. 62-50565

  It is an object of the present invention to provide a decorative part formed with a mark that avoids and eliminates the problems of the prior art as described above and a method for forming the decorative part.

  In order to solve the above-described problems, according to the present invention, a sheet-like member (a sheet-like member includes a fabric, a woven fabric, a cloth, a nonwoven fabric, a felt, a leather, a resin sheet, etc.) using a stopper having a shaft portion. ) Is a metal decorative part that is attached to the surface of the component body, and the front surface of the component body is provided with asymmetrical decoration, and the shaft portion of the fastener provided on the back side of the component body is locked. And a shaft portion locking portion for receiving and deforming and locking the shaft portion on the radially inner side of the cylindrical portion. There is provided a decorative part comprising a stop space and provided with a mark comprising a concave portion and / or a convex portion for grasping the direction of the decoration from the back side on the outer peripheral surface of the cylindrical portion.

  According to the present invention, an operator who attaches a decorative part to a sheet-like member is provided with a mark composed of a concave part and / or a convex part on the outer peripheral surface of the cylindrical part protruding from the back surface of the part main body of the decorative part. By looking at or touching with a hand, it is possible to grasp the direction of decoration on the surface from the back side.

  Specific examples of the decorative parts include decorative buttons attached to clothes, belts, bags, etc. by fasteners, decorative plates, and the like. The decorative part can be formed by processing a metal wire or die casting.

  In one embodiment of the present invention, the cylindrical portion has an inner diameter that decreases in the protruding direction. By reducing the diameter of the cylindrical portion in the protruding direction in this way, the shaft portion of the stopper deformed in the locking space of the decorative part cannot be detached when the decorative part is fixed to the sheet-like member by the stopper.

  In one embodiment of the present invention, the mark is provided at any of the top, bottom, left and right positions of the decoration. In this case, the position of the mark can be matched to the decoration direction of the decorative part.

  In one Embodiment of this invention, the said decoration consists of the recessed part and / or convex part which were provided in the surface. Such decoration can be formed by a die (mold) for molding a decorative part.

  According to another aspect of the present invention, a metal decorative component that is attached to a sheet-like member using a stopper having a shaft portion, and a component main body that is provided with an asymmetrical decoration on the top and bottom and / or left and right, A shaft portion locking portion for locking the shaft portion of the fastener, provided on the back side of the component main body, the shaft portion locking portion protruding from the back surface, and a radius of the cylindrical portion A method of forming a decorative part comprising a locking space for receiving and deforming and locking the shaft portion on the inner side in the direction, the intermediate part serving as the decorative part, and the intermediate part serving as the part main body Including a step of pressing an intermediate part having an intermediate cylindrical portion and an intermediate locking space serving as a main body and the cylindrical portion and the locking space between upper and lower dies, and in the pressing step, the intermediate cylinder is formed by one die. Reduce the inner diameter of the part in the protruding direction And simultaneously processed into the cylindrical portion, the concave portion and / or the method of forming the decorative part providing a mark consisting of a convex portion for grasping the decorative direction on the outer peripheral surface of the cylindrical portion from the rear surface side is provided.

  In the present invention, the intermediate part can be pressed between the upper and lower dies to simultaneously reduce the diameter of the cylindrical part and form the mark on the outer peripheral surface of the cylindrical part.

  In one embodiment of the present invention, in the pressing step, a decoration composed of a concave portion and / or a convex portion is provided on the surface of the intermediate part main body by the other die. In this case, the diameter reduction processing of the cylindrical portion, the formation of the mark on the outer peripheral surface of the cylindrical portion, and the formation of the surface decoration can be performed simultaneously.

  According to yet another aspect of the present invention, a metal decorative part that is attached to a sheet-like member using a stopper having a shaft portion, and a component main body that is provided with an asymmetrical decoration on the top and bottom and / or right and left, A shaft portion locking portion for locking the shaft portion of the fastener provided on the back side of the component body, the shaft portion locking portion protruding from the back surface and the inner diameter being reduced in the protruding direction. A method of forming a decorative part comprising a cylindrical portion and a locking space for receiving and deforming and locking the shaft portion on the inside in the radial direction of the cylindrical portion, the metal wire having a predetermined length A step of cutting and a step of pressing the cut wire to form an intermediate part, wherein the intermediate part is the intermediate part body that becomes the part body and the cylindrical part, and the inner diameter is reduced in the protruding direction. An intermediate cylinder portion that is not formed, and the intermediate cylinder To shrink the inner diameter in the projecting direction forming method of the decorative part and the step of said cylindrical portion is provided.

  In the present invention, a metal wire is cut and pressed to form an intermediate part, and then the cylindrical part of the intermediate part is reduced in diameter to obtain a decorative part.

  In one embodiment of the present invention, in the step of reducing the inner diameter of the intermediate cylindrical portion in the protruding direction to form the cylindrical portion, a recess for grasping the direction of the decoration from the back side on the outer peripheral surface of the cylindrical portion And / or a mark made of a convex portion. In this case, the diameter reduction processing of the cylindrical portion and the formation of the mark on the outer peripheral surface of the cylindrical portion can be performed simultaneously.

  In one embodiment of the present invention, the method includes the step of forming the decoration on the surface of the intermediate part main body, the process being performed simultaneously with the step of forming the intermediate part by pressing the cut wire. This is performed simultaneously with or after the step of reducing the inner diameter of the intermediate cylindrical portion in the protruding direction to form the cylindrical portion. That is, the decoration can be provided at the time of forming the intermediate part or at the time of reducing the diameter of the intermediate cylindrical portion, or can be provided independently after the diameter reduction of the intermediate cylindrical portion.

  In the decorative part and the method for forming the decorative part of the present invention, the directionality of the decoration formed on the surface of the decorative part is not the position corresponding to the flange part of the conventional bar member but the position away from the flange equivalent part in the axial direction. By providing a mark for determination, even when the decorative part is set on the mounting die with its surface turned down, the mark can be easily seen and determined from any angle direction. Is not buried by the shadow formed by the peripheral frame portion of the mounting die, so that the problem in discriminating the top / bottom or left / right direction of the decoration as in the case of the conventional product is avoided and eliminated. In addition, even when a decorative part is die-cast, a new mold that is conventionally required to form a mark is no longer necessary, so that the trouble and cost of forming the decorative part are eliminated. .

FIG. 1 is a perspective view of a decorative button which is a decorative part according to the first embodiment of the present invention. FIG. 2 is a plan view (top view) of the decorative button shown in FIG. FIG. 3 is a bottom view of the decorative button shown in FIG. 4 is a cross-sectional view taken along line AA in FIG. FIG. 5 is a longitudinal sectional explanatory view schematically showing a state in which the decorative button shown in FIG. 1 is fixed to the fabric with a stopper. FIG. 6 is a plan view of a decorative button which is a decorative part according to the second embodiment of the present invention. FIG. 7 is a bottom view of the decorative button shown in FIG. 8 is a cross-sectional view taken along the line BB in FIG. FIG. 9 is a bottom view of a decorative button which is a decorative part according to the third embodiment of the present invention. FIG. 10 is a bottom view of a decorative button which is a decorative part according to the fourth embodiment of the present invention. FIG. 11 is a diagram obtained by inverting the cross section taken along the line CC in FIG. FIG. 12 is a plan view of a decorative button which is a decorative part according to the fifth embodiment of the present invention. FIG. 13 is a bottom view of the decorative button shown in FIG. 14 is a cross-sectional view taken along the line DD of FIG. FIG. 15 is a longitudinal cross-sectional explanatory view schematically showing a state in which the decorative button shown in FIG. 12 is fixed to the fabric with a stopper. FIG. 16 is a longitudinal sectional explanatory view schematically showing a state in which the decorative button shown in FIG. 12 is die-cast between the upper die and the lower die. FIG. 17 is a cross-sectional view similar to FIG. 14 showing a modification of the decorative button shown in FIG. 18 is a cross-sectional explanatory view schematically showing a state immediately before the first upper die is lowered with respect to the wire supported by the first lower die in the process of forming the decorative button shown in FIG. 1 from the metal wire. It is. FIG. 19 is a cross-sectional explanatory view showing a state in which the wire material is primarily processed by the first upper die. FIG. 20 is an explanatory cross-sectional view schematically showing an arrangement state of the first molded body obtained by cutting the wire, and the second upper die and the second lower die for secondary processing of the first molded body. is there. FIG. 21 is a cross-sectional explanatory view showing a state in which the first molded body is molded into an intermediate part by the second upper die and the second lower die. FIG. 22 is an explanatory cross-sectional view schematically showing an arrangement state of an intermediate part and a third upper die and a third lower die for final processing of the intermediate part into a decorative button. FIG. 23 is an explanatory cross-sectional view showing a state in which the intermediate part is formed into a decorative button by the third upper die and the third lower die. It is a bottom view which shows another example of a decoration button. It is a bottom view which shows another example of a decoration button. It is a fracture | rupture perspective view which expands and shows the modification of a mark.

Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
(First embodiment)
FIG. 1 is a perspective view of a decorative button (hereinafter also simply referred to as “button”) 10 as a decorative part according to the first embodiment of the present invention as viewed from below (on the back surface 10b side). 2 and 3 are a plan view (top view) and a bottom view of the button 10, and FIG. 4 is a longitudinal sectional view of the button 10 taken along the line AA (short diameter) in FIG. FIG. 5 is a longitudinal sectional explanatory view schematically showing a state in which the button 10 is fixed to the cloth 1 as a sheet-like member using the stopper 20. The button 10 is a metal product obtained by processing a wire rod or die casting as will be described later, and has an oblong plate-shaped button body 11 having a front surface 11a and a back surface 11b and having a major axis and a minor axis, and a button. A shaft portion locking portion 13 provided on the back surface 11b side of the main body 11 for locking the shaft portion 22 of the stopper 20 when the button 10 is fixed to the cloth 1 is provided. The back surface 11 b of the button body 11 is along a plane (horizontal plane) perpendicular to the axis of the button 10. Hereinafter, the vertical to the axis of the button 10 or the like is referred to as “horizontal”. The front surface 11a is a surface that is visible when the button 10 is attached to the fabric 1, and is substantially parallel to the back surface 11b, and is a curved upper surface 11a ′ that is slightly convex upward (upper and lower are based on FIG. 4 and the like). , And an annular side surface 11a ″ extending slightly from the radially outer end of the curved upper surface 11a ′ downward. The shaft portion locking portion 13 is concentric with the button body 11 downward from the back surface 11b of the button body 11. And a locking space 15 that is recessed in the axial direction above the level of the back surface 11b on the radially inner side of the cylindrical portion 14. The cylindrical portion 14 and the locking space 15 The horizontal cross section is circular (see FIG. 3) The upper end surface 15a of the locking space 15 is flat along the horizontal, and the lower end of the locking space 15 is radially inward of the lower end of the cylindrical portion 14. At the bottom opening 15b The inner diameter of the cylindrical portion 14 and the diameter of the locking space 15 gradually decrease slightly downward.The stopper 20 includes a disc-shaped base portion 21 and a shaft portion 22 that protrudes concentrically with the base portion 21 from the base portion 21. (The shaft portion 22 after deformation is shown in Fig. 5.) When the button 10 is fixed to the fabric 1 with the stopper 20, the shaft portion 22 of the stopper 20 first penetrates the fabric 1 and then the shaft. 22 enters the locking space 15 from the lower end opening 15b of the button 10, hits the upper end surface 15a of the locking space 15, collapses in the axial direction, and expands in the radial direction (see FIG. 5). The shaft portion 22 is prevented from coming off by the cylindrical portion 14 that is reduced in diameter downward.

  Referring to FIG. 2, a heart-shaped graphic decoration (hereinafter simply referred to as “heart”) 12 is formed in a concave shape on the curved upper surface 11 a ′ of the surface 11 a of the button body 11. The vertical direction of the figure of the heart 12 is along the minor axis of the button body 11. The button 10 further has a rectangular convex mark 16 formed on the outer peripheral surface 14 ′ of the cylindrical portion 14 in order to grasp the direction (up and down) of the heart 12 of the button 10 from the back surface 11 b side. In the first embodiment, the mark 16 is provided on the outer peripheral surface 14 ′ of the cylindrical portion 14 at a position along the minor axis of the button main body 11 and below the figure of the heart 12. During the operation of fixing the button 10 to the fabric 1, the operator can easily confirm the directionality of the decoration 12 on the front surface 11a side which cannot be seen from the back surface 11b side by visually checking the mark 16 or touching it with the hand. I can grasp it. In the first embodiment, the decoration 12 is concave, but may be convex. The decoration 12 may also be any character, figure, symbol, or a combination thereof that is asymmetrical vertically or horizontally other than a heart shape. Further, the decoration 12 can be applied in a flat shape instead of a concave shape or a convex shape by printing or the like.

Next, a second embodiment of the present invention will be described with reference to FIGS.
(Second Embodiment)
6 and 7 are a plan view and a bottom view of a decorative button 30 as a decorative part according to the second embodiment of the present invention, and FIG. 8 shows the button 30 along the BB line (long diameter) in FIG. It is a longitudinal cross-sectional view. The button 30 includes an oval plate-shaped button body 31 having a front surface 31 a and a back surface 31 b and having a long diameter and a short diameter, and a cylindrical portion 34 and a locking space 35 provided on the back surface 31 b side of the button body 31. The shaft part latching | locking part 33 which consists of is provided. On the surface 31a of the button body 31, a concave arrow-shaped decoration 32 is formed. The horizontal direction of the figure of the decoration 32 is along the major axis of the button body 31. On the outer peripheral surface 33 ′ of the cylindrical portion 33 of the button 30, a convex mark 36 for grasping the directionality (left and right) of the decoration 32 from the back surface 31 b side is formed. In the second embodiment, the mark 36 is provided on the outer peripheral surface 34 ′ of the cylindrical portion 34 at a position along the major axis of the button body 31 and at a position where the arrow as the decoration 32 faces (the left position in FIG. 6).

  FIG. 9 is a bottom view of a decorative button 40 as a decorative part according to the third embodiment of the present invention. The button 40 has a front surface (not shown) and a back surface 41b and a rhomboid-shaped button main body 41 having a long diameter and a short diameter, and a cylindrical portion 44 and a locking space provided on the back surface 41b side of the button main body 41. 45 and a shaft portion locking portion 43. Although not shown in the drawing, the surface of the button body 41 is provided with an asymmetrical decoration on the left and right and / or up and down. On the outer peripheral surface 44 ′ of the cylindrical portion 44 of the button 40, a convex mark for grasping the directionality of the decoration of the button 40 from the back surface 41 b side at a position on one side of the short diameter (lower position in FIG. 9). 46 is formed.

  FIG. 10 is a bottom view of a decorative button 50 as a decorative part according to the fourth embodiment of the present invention, and FIG. 11 is a button obtained by vertically inverting the longitudinal section along the CC line (short diameter) in FIG. FIG. The button 50 includes an oblong plate-shaped button body 51 having a front surface 51 a and a back surface 51 b and having a long diameter and a short diameter, and a cylindrical portion 54 and a locking space 55 provided on the back surface 51 b side of the button body 51. The shaft part latching | locking part 53 which comprises is provided. On the surface 51a of the button body 51, a concave decoration 52 that is asymmetrical in the left-right and / or up-down direction is formed. A concave mark 56 for grasping the directionality of the decoration 52 of the button 50 from the back surface 51b side is located at one side position (lower position in FIG. 10) of the short diameter on the outer peripheral surface 54 ′ of the cylindrical portion 54 of the button 50. Is formed.

Next, a fifth embodiment of the present invention will be described with reference to FIGS.
(Fifth embodiment)
12 and 13 are a plan view and a bottom view of a decorative button 60 as a decorative part according to the fifth embodiment of the present invention, and FIG. 14 is a button 60 along the line DD (short axis) of FIG. FIG. FIG. 15 is a longitudinal sectional explanatory view schematically showing a state in which the button 60 is fixed to the fabric 2 using the stopper 70. The button 60 is a die-cast molded product, has an oblong plate-like button body 61 having a front surface 61 a and a back surface 61 b and having a major axis and a minor axis, and a cylindrical portion 64 provided on the rear surface 61 b side of the button body 61. And a shaft portion locking portion 63 including a locking space 65. The cylindrical portion 64 has an outer peripheral surface 64 ′ that is inclined so that the outer diameter gradually decreases downward. The locking space 65 includes an upper small-diameter portion 65a whose diameter is constant along the axial direction, and a large-diameter portion 65b whose diameter is larger than the small diameter 65a and constant along the axial direction, and the small-diameter portion 65a. An annular stepped portion 65c is formed between the large-diameter portion 65b. Furthermore, an annular edge portion 65d protruding downward is provided at the radially inner end of the step portion 65c. The stopper 70 includes a disk-like base 71 and a shaft 72 that projects from the base 71 concentrically with the base 71 (shown in FIG. 15 is a shaft 72 immediately after the start of deformation and before the end of deformation). The shaft portion 72 includes an upper small-diameter shaft tip portion 72a that enters the small-diameter portion 65a of the locking space 65 of the button 60 and a large-diameter portion 65b at least a part on the upper side when the button 60 is fixed to the fabric 2. And a shaft base end 72b having a diameter larger than that of the shaft front end 72a. An annular shaft step 72c is formed between the shaft front end 72a and the shaft base end 72b. The axial length of the shaft tip 72a is set shorter than the axial length of the small diameter portion 65a. In addition, a mortar-shaped depression 72d is formed on the tip surface of the shaft portion tip portion 72a, whereby the tip of the shaft portion tip portion 72a becomes a sharp annular edge 72e. When the button 60 is fixed to the fabric 2, the stopper 70 enters the locking space 65 of the button 60 after the shaft portion 72 penetrates the fabric 2 from the edge 72e. At this time, the shaft portion distal end portion 72a of the shaft portion 72 enters the small diameter portion 65a of the locking space 65, and the upper portion of the shaft portion proximal end portion 72b enters the large diameter portion 65b. Before the tip (edge 72e) reaches the bottom (upper end) of the small diameter portion 65a, the shaft portion step portion 72c hits the step portion 65c of the engagement space 65, and the shaft portion 72 enters the engagement space 65 beyond this. The entry is blocked. After the shaft step portion 72c hits the step portion 65c, the step portion 65c of the button 60 causes the shaft portion base end portion 72b to move in the axial direction while biting the edge portion 65d into the upper portion of the shaft portion base end portion 72b. Crush (not shown). Accordingly, the shaft portion 72 is locked in the locking space 65 by deforming the shaft portion base end portion 72b so as to expand in the radial direction.

  On the surface 61a of the button body 61, a decoration 62 made of a concave character ABC (see FIG. 12) is formed. The letters “A”, “B”, and “C” of the decoration 62 are arranged along the major axis, and the upper and lower sides of each letter are parallel to the minor axis of the button body 61. On the outer peripheral surface 64 ′ of the cylindrical portion 64 of the button 60, a convex spherical mark 66 is formed for grasping the directionality of the decoration 62 of the button 60 from the back surface 61 b side. In the fifth embodiment, the mark 66 is provided on the outer peripheral surface 64 ′ of the cylindrical portion 64 at a position along the minor axis of the button main body 61 and below the letter B of the decoration 62.

  FIG. 16 is a longitudinal cross-sectional explanatory view schematically showing a state in which the button 60 is die-cast using the upper die 80 and the lower die 90. The upper die 80 has an upper cavity 81 that matches the outer shape of the button body 61 of the button 60, and the upper cavity 81 includes a protrusion 82 corresponding to the decoration 62 of the button 60. The lower die 90 has an annular recess 91 that matches the outer shape of the cylindrical portion 64 of the button 60, protrudes upward on the radially inner side of the recess 91, a projection 92 that matches the locking space 65, and a mark 66 in the recess 91. Corresponding recesses 93. A gate 83 for injecting a molten metal material is formed between the upper die 80 and the lower die 90. Although the mark 66 of the fifth embodiment is convex, a concave mark 66 ′ can be formed on the button 60 ′ as shown in FIG. 17. The button 60 'in FIG. 17 has the same form as the button 60 in FIG. 14 and the like except for the mark 66'.

  Next, a procedure for obtaining the decorative button 10 described above will be described with reference to FIGS. 18 to 23 as an embodiment of a method for forming a decorative part according to the present invention. It should be noted that the buttons 30, 40 and 50 other than the buttons 60 and 60 'formed by die casting can be formed in the same manner as the button 10. The button 10 is obtained by stepwise processing a metal wire 100 having a circular horizontal cross section. First, the wire 100 is primarily processed by the first upper die 110 and the first lower die 120. Referring to FIG. 18, the first upper die 110 includes a cylindrical portion 111 having a cavity 112 having a diameter equal to or slightly larger than the diameter of the wire rod 100, and a columnar punch portion 113 added above the cavity 112. Is provided. The punch portion 113 protrudes downward with an outer diameter slightly smaller than the inner diameter of the cylindrical portion 111 (the diameter of the cavity 112), and is recessed upward between the outer peripheral surface of the punch portion 113 and the inner peripheral surface of the cylindrical portion 111. An annular recess 114 is formed. 18 and 19, the punch portion 113 is shown as being integral with the cylindrical portion 111, but the punch portion 113 may be separate from the cylindrical portion 111. The inside of the cavity 112 of the cylindrical portion 111 can be moved up and down independently of the cylindrical portion 111. The lower die 120 is a cylindrical member and has a cavity 121 having the same diameter as the cavity 112 of the upper die 110. The wire 100 is disposed in the cavity 121 of the first lower die 120 and is supported by the first lower die 120 in a state of protruding upward by a predetermined length from the upper surface of the first lower die 120 (see FIG. 18). . By lowering the first upper die 110 concentrically with respect to the wire 100 supported by the first lower die 120, the wire 110 is primarily processed as shown in FIG. At this time, the punch portion 113 of the first upper die 110 presses the upper end surface 101 of the wire rod 100 to form a recess 102 at the upper end portion of the wire rod 100, and at the same time corresponds to the annular recess 114 at the upper end portion of the wire rod 100. The portion remains as a cylindrical upper end portion 103 surrounding the recess 102. Next, the lower side of the wire 100 is cut to obtain a first molded body 100 ′ (see FIG. 20) having a predetermined length having a recess 102 and a cylindrical upper end 103. The wire 100 may be cut to a predetermined length before the primary processing by the first upper die 110.

  Next, using the second upper die 130 and the second lower die 140 shown in FIG. 20, the first molded body 100 ′ is secondarily processed into an intermediate part 150 (see FIG. 21 and the like) as the second molded body. The intermediate part 150 includes an intermediate part main body 151 that becomes the button main body 11 of the button 10, and an intermediate cylindrical part 154 and an intermediate locking space 155 that become the cylindrical part 14 and the locking space 15 of the button 10. The intermediate part main body 151 has the same form as the button main body 11 except that the decoration 12 is not yet provided on the surface. The inner diameter of the intermediate cylindrical portion 154 and the diameter of the intermediate locking space 155 are substantially constant in the axial direction. Referring to FIG. 20, the second upper die 130 has an annular recess 132 that is annularly recessed upward from the lower surface 131, and a circle that protrudes downward slightly above the level of the lower surface 131 on the radially inner side of the annular recess 132. A columnar punch portion 133. The punch part 133 may be a separate and independent member. The annular recess 132 and the punch portion 133 have shapes that respectively match the intermediate cylindrical portion 154 and the intermediate locking space 155 of the intermediate component 150. The second lower die 140 has a recess 142 that is recessed downward from the upper surface 141, and the recess 142 has a shape that matches the outer shape of the button body 11 of the button 10 except for the decoration 12. Next, as shown in FIG. 20, after the primary molded body 100 ′ is concentrically disposed between the second upper die 130 and the second lower die 140 so that the cylindrical upper end portion 103 comes upward, 2 Lower the upper die 130 and compress the primary molded body 100 ′ in the axial direction between the second upper die 130 and the second lower die 140 (see FIG. 21). Thereby, the primary molded body 100 ′ is plastically deformed so as to be crushed in the axial direction, so that the intermediate part 150 is obtained. At this time, the cylindrical upper end portion 103 and the recess 102 of the primary molded body 100 ′ are formed into the intermediate cylindrical portion 154 and the intermediate locking space 155 of the intermediate component 150 by the annular concave portion 132 and the punch portion 133 of the second upper die 130, Further, the intermediate part main body 151 of the intermediate part 150 is formed by the recess 142 of the second lower die 140. The decoration 12 is formed at the time of the tertiary processing described later, but a convex portion corresponding to the decoration 12 of the button 10 is provided at the bottom of the concave portion 142 of the second lower die 140, and the second upper die 130 and the second lower die 140 are provided. The decoration 12 may be formed on the intermediate part 150 at the time of the secondary processing by the above, or alternatively, the decoration 12 may be independently formed on the surface of the intermediate part main body 151 after the diameter reduction of the intermediate cylindrical portion 154 of the intermediate part 150. Good.

  Next, the decorative button 10 that is the final product is obtained by pressing (tertiary processing) the intermediate part 150 between the third upper die 160 and the third lower die 170 shown in FIG. The third upper die 160 has a recess 162 that is recessed upward from the lower surface 161. The concave portion 162 includes a curved side surface 163 for reducing the inner diameter of the intermediate cylindrical portion 154 of the intermediate component 150 in the protruding direction (upward in FIG. 22). The recess 162 further has a recess 164 corresponding to the convex mark 16 of the button 10 in a part of the curved side surface 163. The third lower die 170 has a recess 172 that is recessed downward from the upper surface 171. The concave portion 172 has substantially the same shape as the concave portion 142 of the second lower die 140, but a protrusion 173 corresponding to a heart-shaped figure corresponding to the concave decoration 12 of the button 10 is provided at the bottom of the concave portion 172. The point is different from the concave portion 142. The positional relationship between the depression 164 of the third upper die 160 and the protrusion 173 of the third lower die 170 is set in the same manner as the positional relationship described above between the mark 16 and the decoration 12 on the button 10. FIG. 23 shows a state in which the intermediate part 150 is pressed between the third upper die 160 and the third lower die 170, whereby the intermediate part 150 becomes the decorative button 10. At this time, the intermediate cylindrical portion 154 of the intermediate component 150 is reduced in diameter by the concave portion 162 of the third upper die 160 to become the cylindrical portion 14, and the mark 16 is formed on the outer peripheral surface 14 ′ of the cylindrical portion 14 by the recess 164. The Further, the decoration 12 is provided on the surface 11 a of the button body 11 by the protrusion 173 of the third lower die 170. Although not shown, after a decorative button (an intermediate part thereof) having a cylindrical portion whose inner diameter is constant in the axial direction is die-cast, the cylindrical portion is substantially the same as the concave portion 162 of the third upper die 160. In some cases, the button of the final product is formed by reducing the diameter with a die having a recess.

  The shape of the component main body of the decorative component according to the present invention is not limited to the above-described ellipse, oval, rhombus, etc. As another example, the decorative button 180 as a decorative component shown in FIG. A decorative button 190 as a decorative component shown in FIG. 25 includes a button main body 181, and includes a substantially square button main body 191. 24 and 25, reference numbers 181b and 191b are the back surfaces of the button bodies 181 and 191, reference numbers 183 and 193 are shaft locking portions, 184 and 194 are cylindrical portions, 184 'and 194' are outer peripheral surfaces of the cylindrical portions, Reference numerals 185 and 195 denote locking spaces, and reference numerals 186 and 196 denote convex marks. Although not shown in the drawing, the buttons 180 and 190 are provided with asymmetrical decorations in the vertical and horizontal directions.

  FIG. 26 is an exploded perspective view showing a modified example of the mark. For convenience of explanation, the same reference numerals as those of the button 10 are used for the back surface 11 b of the button body, the cylindrical portion 14, and the outer peripheral surface 14 ′ of the cylindrical portion 14. The mark 16 ′ is formed by a concave portion 16 ′ a that is a longitudinal groove having a horizontal cross-sectional triangle shape, and a convex portion 16 ′ b that has a horizontal cross-sectional triangle shape between the concave portions 16 ′ a adjacent in the circumferential direction of the cylindrical portion 14. .

1, 2 Fabric (sheet-like member)
10, 30, 40, 50, 60, 60 ', 180, 190 Decorative buttons (decorative parts)
11, 31, 41, 51, 61, 181, 191 Button body 11a, 31a, 51a, 61a Button body surface 11b, 31b, 41b, 51b, 61b, 181b, 191b Button body back surface 12, 32, 52, 62 Decoration 13, 33, 43, 53, 63, 183, 193 Shaft locking portion 14, 34, 44, 54, 64, 184, 194 Cylindrical portion 14 ', 34', 44 ', 54', 64 ', 184 ', 194' Cylindrical outer peripheral surface 15, 35, 45, 55, 65, 185, 195 Locking space 16, 16 ', 36, 46, 56, 66, 66', 186, 196 Marking 20, 70 Stopper 22, 72 Shaft
100 Wire Material 150 Intermediate Part 151 Intermediate Part Body 154 Intermediate Cylindrical Part 155 Intermediate Locking Space

Claims (9)

Metal decorative parts (10, 30, 40, 50, 60, 60 ′, 180) attached to the sheet-like members (1, 2) using the fasteners (20, 70) having the shaft portions (22, 72). 190), and
Component body (11, 31, 41, 51, 61, 181, 191) having asymmetrical decoration (12, 32, 52, 62) on the surface (11a, 31a, 51a, 61a) vertically and / or left and right When,
Shaft portion of the fastener (20, 70) provided on the back surface (11b, 31b, 41b, 51b, 61b, 181b, 191b) side of the component main body (11, 31, 41, 51, 61, 181, 191) (22, 72) having a shaft locking portion (13, 33, 43, 53, 63, 183, 193) for locking,
The shaft portion locking portions (13, 33, 43, 53, 63, 183, 193) are formed by cylindrical portions (14, 34, 44, 44) protruding from the back surface (11b, 31b, 41b, 51b, 61b, 181b, 191b). 54, 64, 184, 194) and the shaft (22, 72) are received and deformed and locked radially inside the cylindrical part (14, 34, 44, 54, 64, 184, 194). The locking space (15, 35, 45, 55, 65, 185, 195)
On the outer peripheral surface (14 ′, 34 ′, 44 ′, 54 ′, 64 ′, 184 ′, 194 ′) of the cylindrical portion (14, 34, 44, 54, 64, 184, 194), the decoration (12, 32, 52, 62) is a mark (16, 16 ', 36, 46, comprising a concave portion and / or a convex portion for grasping the direction of the rear surface (11b, 31b, 41b, 51b, 61b, 181b, 191b). 56, 66, 66 ′, 186, 196).   The decorative part according to claim 1, wherein an inner diameter of the cylindrical portion (14, 34, 44, 54, 184, 194) is reduced in a protruding direction.   2. The mark (16, 16 ′, 36, 46, 56, 66, 66 ′, 186, 196) is provided at any one of the upper, lower, left and right positions of the decoration (12, 32, 52, 62). Or two decorative parts.   The decorative part according to any one of claims 1 to 3, wherein the decoration (12, 32, 52, 62) includes a concave part and / or a convex part provided on a surface (11a, 31a, 51a, 61a). Metal decorative parts (10, 30, 40, 50, 180, 190) attached to the sheet-like member (1) using the stopper (20) having the shaft portion (22) are used as the surfaces (11a, 31a). 51a) and a component main body (11, 31, 41, 51, 181, 191) provided with asymmetrical decoration (12, 32, 52) on the top and bottom and / or right and left, and a component main body (11, 31, 41, 51, 181, 191) provided on the back surface (11 b, 31 b, 41 b, 51 b, 181 b, 191 b) side, the shaft portion locking portion for locking the shaft portion (22) of the fastener (20) 13, 33, 43, 53, 183, 193), and the shaft locking portion (13, 33, 43, 53, 183, 193) is the back surface (11 b, 31 b, 41 b, 51 b, 181 b, 191 b) ) Protruding from the cylindrical part (14, 3 , 44, 54, 184, 194) and a lock for receiving and deforming and locking the shaft portion (22) radially inside the cylindrical portion (14, 34, 44, 54, 184, 194) A method of forming a decorative part (10, 30, 40, 50, 180, 190) comprising a space (15, 35, 45, 55, 185, 195),
The intermediate component body (151) which becomes the component main body (11, 31, 41, 51, 181, 191) as the intermediate component (150) which becomes the decorative component (10, 30, 40, 50, 180, 190) And an intermediate cylindrical portion (154) and an intermediate locking space (155) that become the cylindrical portion (14, 34, 44, 54, 184, 194) and the locking space (15, 35, 45, 55, 185, 195). And pressing the intermediate part (150) between the upper and lower dies (160, 170),
In the pressing step, one of the dies (160) reduces the inner diameter of the intermediate cylindrical portion (154) in the protruding direction and simultaneously processes the cylindrical portion (14, 34, 44, 54, 184, 194). Orientation of the decoration (12, 32, 52) on the outer peripheral surface (14 ', 34', 44 ', 54', 184 ', 194') of the cylindrical portion (14, 34, 44, 54, 184, 194) For decorative parts provided with marks (16, 16 ', 36, 46, 56, 186, 196) made up of concave portions and / or convex portions for grasping from the back side (11b, 31b, 41b, 51b, 181b, 191b) side Forming method.   The method of forming a decorative part according to claim 5, wherein, in the pressing step, a decoration (12, 32, 52) comprising a concave part and / or a convex part is provided on the surface of the intermediate part main body (151) by the other die (170). Metal decorative parts (10, 30, 40, 50, 180, 190) attached to the sheet-like member (1) using the stopper (20) having the shaft portion (22) are used as the surfaces (11a, 31a). 51a) and a component main body (11, 31, 41, 51, 181, 191) provided with asymmetrical decoration (12, 32, 52) on the top and bottom and / or right and left, and a component main body (11, 31, 41, 51, 181, 191) provided on the back surface (11 b, 31 b, 41 b, 51 b, 181 b, 191 b) side, the shaft portion locking portion for locking the shaft portion (22) of the fastener (20) 13, 33, 43, 53, 183, 193), and the shaft locking portion (13, 33, 43, 53, 183, 193) is the back surface (11 b, 31 b, 41 b, 51 b, 181 b, 191 b) ) And the inner diameter protrudes The cylindrical portion (14, 34, 44, 54, 184, 194) to be reduced and the shaft portion (22) are received and deformed radially inside the cylindrical portion (14, 34, 44, 54, 184, 194). A decorative part (10, 30, 40, 50, 180, 190) comprising locking spaces (15, 35, 45, 55, 185, 195) for locking
Cutting the metal wire (100) into a predetermined length;
A step of pressing the cut wire (100) to form an intermediate part (150), and the intermediate part (150) becomes the part main body (11, 31, 41, 51, 181, 191). A step having an intermediate part main body (151) and an intermediate cylindrical part (154) whose inner diameter is not reduced in the protruding direction, which becomes the cylindrical part (14, 34, 44, 54, 184, 194);
And a step of reducing the inner diameter of the intermediate cylindrical portion (154) in the protruding direction to form the cylindrical portion (14, 34, 44, 54, 184, 194).   In the step of reducing the inner diameter of the intermediate cylindrical portion (154) in the protruding direction to form the cylindrical portion (14, 34, 44, 54, 184, 194), the cylindrical portion (14, 34, 44, 54, 184). , 194) on the outer peripheral surface (14 ′, 34 ′, 44 ′, 54 ′, 184 ′, 194 ′), the direction of the decoration (12, 32, 52) is the back surface (11b, 31b, 41b, 51b, 181b). 191b) The decorative part forming method according to claim 7, wherein a mark (16, 16 ', 36, 46, 56, 186, 196) comprising a concave portion and / or a convex portion for grasping from the side is provided.   Forming the decoration (12, 32, 52) on the surface of the intermediate part body (151), the process pressing the cut wire (100) to form the intermediate part (150); At the same time as the process or at the same time as or after the process of reducing the inner diameter of the intermediate cylindrical part (154) in the protruding direction to form the cylindrical part (14, 34, 44, 54, 184, 194). The method for forming a decorative part according to claim 7.

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