JP6159835B2 - Manufacturing mold for combination decorative body - Google Patents

Description

  The present invention relates to a manufacturing tool for a combination decorative body in which a pair of ring-shaped decorative bodies having different inner diameters overlap each other without a gap.

  2. Description of the Related Art Conventionally, there has been known a combination decorative body including a ring-shaped decorative body (hereinafter referred to as a ring-shaped decorative body) such as a pair of rings having different inner diameters worn by men and women such as a marriage ring and a pairing. The combination decorative body gives a sense of unity as a whole by giving a common design to a pair of ring-shaped decorative bodies or allowing them to be overlapped. In recent years, intensive research has been conducted on this combination decorative body.

  For example, Patent Document 1 (conventional example 1) includes a plurality of rings 110 and 120 in which adjacent portions of one or more spiral portions 111 and 121 are arranged in contact with each other as shown in FIG. There is disclosed a combination ring 100 capable of aligning the other ring 120 in the circumferential direction with respect to one ring 110 without visual inspection.

Noto 3159867

  However, in the combination ring 100 disclosed in Patent Document 1, adjacent portions of the spiral portions 111 and 121 in the respective rings 110 and 120 are brought into contact with each other, and both side edges of the respective rings 110 and 120 are set to have a constant inclination angle. The ring 110, 120 is merely an overlap, and cannot be overlapped until both sides of the ring 110, 120 are curved, and the shape of the ring 110, 120 itself may be complicated. There was a problem that could not be done.

  Conventionally, a manufacturing mold 200 (conventional example 2) shown in FIG. 12 is known as a technique for bending a ring-shaped decorative body, but a combination decorative body (consisting of a pair of ring-shaped decorative bodies having different inner diameters). In order to form the ring, a mold for manufacturing a ring-shaped decorative body suitable for each inner diameter is required, which increases the manufacturing cost.

  The present invention is made in view of the above-described circumstances, and is formed by bending a pair of ring-shaped decorative bodies having different inner diameters with the same mold, thereby curving both side edges of the ring-shaped decorative body. An object of the present invention is to provide a manufacturing mold for a combined decorative body that can be overlapped without a gap even when shaped and can reduce the manufacturing cost for manufacturing the mold.

  The invention according to claim 1, which has been made to solve the above-described problem, is curved with a size capable of pressing the first ring-shaped member and the second ring-shaped member having an inner diameter smaller than the inner diameter of the first ring-shaped member. A manufacturing tool for a combined decorative body, comprising a pair of pressing dies that have a curved pressing surface that is curved by pressing the first ring-shaped member and the second ring-shaped member from both sides, The curve of the pressing surface is formed so as to wave in the circumferential direction around a reference point on the curved pressing surface.

  According to the first aspect of the present invention, the first ring-shaped decorative body and the second ring-shaped decorative body are formed by bending with the same mold, so that the ring-shaped decorative body having curved side edges can be overlapped without any gap. The manufacturing cost for manufacturing the mold can be reduced.

  The invention according to claim 2 is the manufacturing tool for a combination decorative body according to claim 1, wherein a reference point of the curved pressing surface is located on a center line of the curved pressing surface. Features.

  The invention according to claim 3 is the manufacturing tool for a combination decorative body according to claim 1 or 2, wherein the curvature of the curved pressing surface is a wave as it proceeds in the radial direction around the reference point. It is also characterized by being formed so as to increase the amplitude of.

  According to the third aspect of the present invention, the curved pressing surface of the pressing mold is formed so as to wave in the circumferential direction around the reference point on the center line, and the amplitude of the wave increases as it proceeds in the radial direction. By forming the first ring-shaped decorative body to be large, the first ring-shaped decorative body and the second ring-shaped decorative body itself have a complicated design in which the shapes of the first ring-shaped decorative body and the second ring-shaped decorative body are changed in the circumferential direction and the radial direction. It can be superimposed on the ring-shaped decorative body without a gap.

  The invention according to claim 4 is the manufacturing tool for a combined decorative body according to any one of claims 1 to 3, wherein the manufacturing mold for the combined decorative body further includes the pair of presses. A protruding shaft portion formed at the reference point in one of the molds, and attached to the protruding shaft portion and circumscribing the first ring-shaped member, thereby the first curved pressing surface with respect to the first curved pressing surface. A first positioning member that positions one ring-shaped member and a second ring-shaped member that is attached to the protruding shaft portion and circumscribes the second ring-shaped member, thereby positioning the second ring-shaped member with respect to the one curved pressing surface. And a second positioning member.

  The invention according to claim 5 is the manufacturing tool for a combined decorative body according to any one of claims 1 to 3, wherein the manufacturing mold for the combined decorative body further includes the pair of presses. One of the molds is circumscribed on the curved pressing surface and is formed at a symmetrical position at an interval narrower than the inner diameter of the second ring-shaped member with reference to the center line on the one curved pressing surface. Then, the first ring-shaped member and the second ring-shaped member are brought into contact with each other to position the first ring-shaped member and the second ring-shaped member with respect to the one curved pressing surface. And a positioning member.

  A sixth aspect of the present invention is the manufacturing tool for a combined decorative body according to any one of the first to fifth aspects, wherein the curved pressing surface is a curved disk having an outer diameter of at least 30 mm or more. It is characterized by being formed.

  The present invention is made in view of the above-described circumstances, and is formed by bending a pair of ring-shaped decorative bodies having different inner diameters with the same mold, so that even in a ring-shaped decorative body having curved edges on both sides, Thus, it is possible to provide a manufacturing die for a combined decorative body that can be superposed on each other and reduce the manufacturing cost for manufacturing the die.

It is a perspective view of the combination decoration body of 1st Example. (A) is a perspective view showing the first ring-shaped decorative body and the second ring-shaped decorative body of FIG. 1, and (B) is a plane of the first ring-shaped decorative body and the second ring-shaped decorative body of (A). FIG. It is a perspective view which shows the manufacturing mold for combination ornament bodies which manufactures the combination ornament body of FIG. It is a perspective view which shows each pressing surface of the upper side press die of FIG. 3, and a lower side press die. It is the schematic which shows the positional relationship of the lower side press metal mold | die of FIG. 3, a 1st ring-shaped member, and a 1st positioning member. (A) is a top view at the time of positioning a 1st ring-shaped member via the 1st positioning member in the lower side press metal mold | die of FIG. 3, (B) is 2nd in the lower side press metal mold | die of FIG. It is a top view at the time of positioning the 2nd ring-shaped member via the positioning member. It is a flowchart which shows the manufacturing process which manufactures the combination decoration body of FIG. It is a perspective view which shows each pressing surface of the upper side press metal mold | die and lower side press metal mold | die of 2nd Example. It is the schematic which shows the positional relationship of the lower side press metal mold | die of FIG. 8, and a 1st ring-shaped member. (A) is a top view at the time of positioning a 1st ring-shaped member to the lower side press metal mold | die of FIG. 8, (B) is when the 2nd ring-shaped member is positioned to the lower side press metal mold | die of FIG. FIG. It is a perspective view which shows a time when a pair of ring of the prior art example 1 was piled up. It is a perspective view which shows the metal mold | die for manufacturing the curved ring-shaped decorative body of the prior art example 2. FIG.

(First Example)
Hereinafter, a combination decorative body 1 according to a first embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of the combination decorative body 1 of the first embodiment, FIG. 2A is a perspective view showing the first ring-shaped decorative body 11 and the second ring-shaped decorative body 12 of FIG. (B) is a plan view of the first ring-shaped decorative body 11 and the second ring-shaped decorative body 12 of (A).
The width direction of the combination decorative body 1 is the x axis, the depth direction of the combination decorative body 1 is the y axis, and the height direction (superposition direction) of the combination decorative body 1 is the z axis.

  As shown in FIGS. 1 and 2, reference numeral 1 is a combination decorative body of the present embodiment. The combination decorative body 1 includes a first ring-shaped decorative body 11 that fits on a male finger, and a second ring-shaped decorative body 12 that fits on a female finger.

  As shown in FIGS. 2A and 2B, the first ring-shaped decorative body 11 is formed so as to bend the first ring-shaped member 11a so as to wave in the circumferential direction and to tilt in the radial direction. . The second ring-shaped decorative body 12 bends the second ring-shaped member 12a having an inner diameter smaller than the inner diameter of the first ring-shaped member 11a so as to wave in the circumferential direction corresponding to the curvature of the first ring-shaped member 11a. And is formed to be inclined in the radial direction.

  As shown in FIGS. 2A and 2B, the first ring-shaped member 11a and the second ring-shaped member 12a have an inner diameter of 13.0 mm (ring size 1) to an inner diameter of 22.7 mm (ring size 30). It is a ring-shaped thing within the range. The first ring-shaped member 11a and the second ring-shaped member 12a are made of, for example, titanium or an alloy of titanium and another metal (such as zinc, chromium, nickel, molybdenum, or aluminum).

  The combined decorative body 1 of the present embodiment is more complicated by making the first ring-shaped decorative body 11 and the second ring-shaped decorative body 12 into shapes that change not only in the thickness direction but also in the radial direction. Design.

  Next, a manufacturing die 2 for manufacturing a combined decorative body (manufacturing mold) for manufacturing the combined decorative body 1 of the present embodiment will be described.

FIG. 3 is a perspective view showing a manufacturing die 2 for a combined decorative body for manufacturing the combined decorative body 1 of FIG. 1, and FIG. 4 shows each pressing surface of the upper pressing mold 4 and the lower pressing mold 3 of FIG. FIG. 5 is a schematic view showing a positional relationship among the lower pressing die 3, the first ring-shaped member 11a, and the first positioning member 6 in FIG. 3, and FIG. FIG. 4 is a plan view when the first ring-shaped member 11a is positioned on the lower pressing mold 3 of FIG. 3 via the first positioning member 6, and FIG. It is a top view at the time of positioning the 2nd ring-shaped member 12a via the 2 positioning member 7. FIG.
The coordinate system is the same as the coordinate system of the combination ornament 1.

  As shown in FIGS. 3 and 4, the combination decorative body manufacturing mold 2 includes a lower pressing mold 3 (pressing mold) and an upper side pressing the first ring-shaped member 11 a and the second ring-shaped member 12 a from both sides. A first positioning member 6 (positioning member) and a second positioning member 7 for positioning the first ring-shaped member 11a and the second ring-shaped member 12a with respect to the pressing mold 4 (pressing mold) and the lower pressing mold 3 (Positioning member).

  As shown in FIGS. 3 to 5, the lower pressing mold 3 has, for example, a T-shape in a side view with the center protruding, and is made of, for example, steel. The protruding end surface of the lower pressing mold 3 (the pressing surface 31 of the lower pressing mold 3) has a first curved pressing surface 32 (curved pressing surface) that presses the first ring-shaped member 11a and the second ring-shaped member 12a. ) And a guide hole 33 which is positioned so as to sandwich the first curved pressing surface 32 at the protruding end surface and is inserted so that a guide pin 43 described later is guided.

  As shown in FIGS. 4 and 5, the first curved pressing surface 32 is formed in a size capable of pressing the first ring-shaped member 11a and the second ring-shaped member 12a, and is a disk having an outer diameter of 30 mm or more. Is curved. A protruding shaft portion 34 (reference point) protruding upward is formed at the center of the first curved pressing surface 32 (the center on the center line 37a of the first curved pressing surface 32).

  As shown in FIGS. 4 and 5, the first curved pressing surface 32 is formed so as to bend in the circumferential direction and tilt in the radial direction around the protruding shaft portion 34. As a more specific example, the first curved pressing surface 32 has three crests and troughs alternately formed in the circumferential direction every 120 ° with the protruding shaft part 34 as the center. The height and the depth of each trough are formed so as to gradually increase as the first curved pressing surface 32 progresses in the radial direction.

  As shown in FIGS. 3 and 4, the upper pressing die 4 is provided with a support portion 45 extending upward from the center of the upper surface, for example, and is made of, for example, steel. On the bottom surface of the upper pressing mold 4 (the pressing surface 41 of the lower pressing mold 3), a second curved pressing surface 42 (curved pressing surface) that presses the first ring-shaped member 11a and the second ring-shaped member 12a, and The second curved pressing surface 42 is sandwiched on the bottom surface and is positioned corresponding to the guide hole 33, and extends downward and is guided to the guide hole 33.

  The guide pin 43 is inserted into the guide hole 33 when the upper pressing die 4 approaches the lower pressing die 3, thereby defining the pressing position of the upper pressing die 4 with respect to the lower pressing die 3. To do.

  As shown in FIG. 4, the second curved pressing surface 42 is formed in a size corresponding to the first curved pressing surface 32, and is formed so as to curve a disk having an outer diameter of 30 mm or more. A shaft hole portion 44 (reference point) into which the protruding shaft portion 34 is inserted is formed at the center of the second curved pressing surface 42 (the center on the center line 44a of the second curved pressing surface 42).

  As shown in FIG. 4, the second curved pressing surface 42 corresponds to the first curved pressing surface 32 and is curved so as to undulate in the circumferential direction around the shaft hole 44 and is inclined in the radial direction. Is formed. As a more specific example, the second curved pressing surface 42 has three crests and troughs in the circumferential direction every 120 ° around the shaft hole 44 so as to correspond to the first curved pressing surface 32. Are alternately formed, and the height of each peak and the depth of each valley are formed so as to gradually increase in the radial direction of the second curved pressing surface 42.

  As shown in FIG. 4, the second curved pressing surface 42 is formed with the same curvature as the first curved pressing surface 32, and when the upper pressing die 4 is stacked on the lower pressing die 3, The peaks and valleys of the first curved pressing surface 32 are formed so as to overlap the valleys and peaks of the second curved pressing surface 42, respectively.

  As shown in FIG. 6A, the first positioning member 6 positions the first ring-shaped member 11a with respect to the first curved pressing surface 32, and is made of, for example, a resin material. The first positioning member 6 has, for example, a hollow disk shape, is attached to the protruding shaft portion 34, and is formed so as to circumscribe the first ring-shaped member 11a.

  As shown in FIG. 6B, the second positioning member 7 positions the second ring-shaped member 12a with respect to the second curved pressing surface 42, and is made of, for example, a resin material. Similar to the first positioning member 6, the second positioning member 7 has, for example, a hollow disk shape, is mounted on the protruding shaft portion 34, and is formed so as to circumscribe the second ring-shaped member 12a. . The second positioning member 7 is formed smaller than the outer diameter of the first positioning member 6.

  Each thickness of the 1st positioning member 6 and the 2nd positioning member 7 is formed thinner than the thickness of the 1st ring-shaped decoration body 11 and the 2nd ring-shaped decoration body 12, and the 2nd curved press surface 42 at the time of a press. Is formed so as not to touch.

  By positioning the first ring-shaped member 11a and the second ring-shaped member 12a with respect to the first curved pressing surface 32 by the first positioning member 6 and the second positioning member 7, the lower pressing mold 3 and the upper pressing When pressing the first ring-shaped member 11a and the second ring-shaped member 12a from both sides with the mold 4, the first ring-shaped member 11a and the second ring-shaped member 12a move relative to the lower pressing mold 3. This can be prevented.

  Here, the combination decorative body 1 may be manufactured by attaching the manufacturing mold 2 for the combined decorative body of the present embodiment to a stepping type pressing device (not shown).

  The foot type pressing device is located above the pedal part (not shown), the receiving part (not shown), and the receiving part that the operator steps on, and is movable and pressed down by the operator stepping on the pedal part. A pressing portion (not shown). The movable pressing portion is formed to be biased upward when the operator is not stepping on the pedal portion.

  In addition, the stepping type pressing device is formed so as to convert the force of the operator stepping on the pedal portion into the force pressing the movable pressing portion, and the pressing force of the movable pressing portion can be about 5 to 10 kgf. it can.

  While fixing the overhang | projection part 35 in the bottom part of the lower side press metal mold | die 3 to the receiving part of this stepping type press device, the operator can pedal by fixing the support part 45 of the upper side press metal mold | die 4 to a movable press part. When the part is stepped on, the movable pressing part can be moved downward to press the upper pressing mold 4 against the lower pressing mold 3 with a force of about 5 to 10 kgf.

  In order to press the first ring-shaped member 11a and the second ring-shaped member 12a positioned on the lower pressing mold 3 with such a pressing force, the first ring-shaped decorative body 11 and the second ring-shaped decorative body 12 are pressed. It is possible to prevent the first ring-shaped member 11a and the second ring-shaped member 12a from being pressed more than necessary without applying excessive force.

  That is, when the combination decorative body 1 of the present embodiment is attached to the stepping type pressing device, the pressing force of the first ring-shaped member 11a and the second ring-shaped member 12a can be set to 5 to 10 kgf. A regulating member (not shown) that restricts the first ring-shaped member 11a and the second ring-shaped member 12a from being excessively deformed by being pressed more than necessary by the lower pressing mold 3 and the upper pressing mold 4 is required. Instead, the operation of fixing the regulating member to the lower pressing mold 3 or the upper pressing mold 4 can be omitted.

  The manufacturing die 2 for a combination decorative body of the present embodiment has a size that can sufficiently press the first curved pressing surface 32 and the second curved pressing surface 42 against the first ring-shaped member 11a and the second ring-shaped member 12a. By forming, the manufacturing mold which manufactures the 1st ring-shaped decorative body 11 and the 2nd ring-shaped decorative body 12 can be made common.

  That is, the manufacturing die 2 for a combination decorative body of the present embodiment is different from the manufacturing die for manufacturing the first ring-shaped decorative body 11 and the second ring-shaped decorative body 12 as in Conventional Example 2 shown in FIG. Therefore, it is possible to reduce the cost of manufacturing the manufacturing mold.

  In addition, the manufacturing die 2 for a combination decorative body of the present embodiment has a first curved pressing surface 32 and a second curved pressing surface 42 that are formed in a plurality of circumferential directions around the projecting shaft portion 34 and the shaft hole portion 44. The first ring shape is formed such that the height of each crest and the depth of each trough are gradually increased in the radial direction of the first curved pressing surface 32 by positioning the portion and the trough. The decorative body 11 and the second ring-shaped decorative body 12 itself can be formed in a shape that is changed not only in the thickness direction but also in the radial direction.

  Further, the first curved pressing surface 32 and the second curved pressing surface 42 in the manufacturing die 2 for a combined decorative body of the present embodiment have an outer diameter on which the first ring-shaped member 11a having the ring size 30 can be sufficiently placed. Since it is a curved disk of 30 mm or more, the first ring-shaped decorative body 11 and the second ring-shaped body 11a and the second ring-shaped member 12a of any size of the ring sizes No. 1 to No. 30 can be used. The ring-shaped decorative body 12 can be formed with the same mold.

  Next, the manufacturing method of the combination decoration body 1 which manufactures the combination decoration body 1 of a present Example is demonstrated. As an initial condition, it is assumed that the lower pressing mold 3 and the upper pressing mold 4 are attached to the foot-pressing device.

  FIG. 7 is a flowchart showing a manufacturing process for manufacturing the combination decorative body 1 of FIG.

<Manufacturing process of first ring-shaped decorative body 11>
The operator attaches the first positioning member 6 to the projecting shaft portion 34 of the lower pressing mold 3 attached to the receiving portion, and makes the first ring-shaped member 11a circumscribe the attached first positioning member 6. 6A, the first ring-shaped member 11a is positioned with respect to the lower pressing mold 3 (STEP 1 and 2).

  The operator depresses the pedal portion to move down the upper pressing die 4 attached to the movable pressing portion, and is positioned on the lower pressing die 3 via the first positioning member 6. The member 11a is pressed (STEP 3).

  When the first ring-shaped member 11 a is pressed from both sides by the upper pressing mold 4 and the lower pressing mold 3, the curved shape of the first curved pressing surface 32 of the upper pressing mold 4 and the lower pressing mold 3. The first ring-shaped member 11a is curved in accordance with the curved shape of the second curved pressing surface 42, and the first ring-shaped decorative body 11 is manufactured.

  That is, according to the curved shape of the first curved pressing surface 32 and the second curved pressing surface 42, the first ring-shaped member 11a is curved so as to wave in the circumferential direction and is formed so as to be inclined in the radial direction. The first ring-shaped decorative body 11 is manufactured.

  When the first ring-shaped decorative body 11 is manufactured, the operator removes his / her foot from the pedal portion, moves the upper pressing die 4 together with the movable pressing portion, and starts from the lower pressing die 3 to the first ring shape. The decorative body 11 and the first positioning member 6 are removed (STEP 4).

<Manufacturing process of second ring-shaped decorative body 12>
The operator attaches the second positioning member 7 to the protruding shaft portion 34 of the lower pressing mold 3 in the same procedure as the manufacturing process of the first ring-shaped decorative body 11, and attaches the second positioning member 7 to the attached second positioning member 7. The second ring-shaped member 12a is circumscribed, and the second ring-shaped member 12a is positioned with respect to the lower pressing mold 3 as shown in FIG. 6B (STEP 5).

  The operator depresses the pedal portion, moves the upper pressing mold 4 downward, and presses the second ring-shaped member 12a positioned on the lower pressing mold 3 via the second positioning member 7 (STEP 6). ).

  When the second ring-shaped member 12a is pressed from both sides by the upper pressing mold 4 and the lower pressing mold 3, according to the curved shape of the first curved pressing surface 32 and the curved shape of the second curved pressing surface 42, The second ring-shaped decorative body 12 is manufactured by bending the second ring-shaped member 12a so as to wave in the circumferential direction and inclining in the radial direction.

  When the second ring-shaped decorative body 12 is manufactured, the operator removes his / her foot from the pedal portion, moves the upper pressing die 4 together with the movable pressing portion, and moves the lower pressing die 3 to the second ring shape. The decorative body 12 and the second positioning member 7 are removed, and the manufacturing operation of the combined decorative body 1 is completed (STEPs 7 and 8).

  The manufacturing die 2 for a combination decorative body of the present embodiment is the same as the first ring-shaped member 11a and the second ring-shaped member 12a, and the first ring-shaped decorative body 11 and the second ring-shaped decorative body. The first ring-shaped decorative body 11 and the second ring-shaped decorative body 12 are the same even if the first ring-shaped decorative body 11 and the second ring-shaped decorative body 12 themselves are made complicated by manufacturing the curved 12. Since it is curved with a curvature, the second ring-shaped decorative body 12 can be overlapped on the first ring-shaped decorative body 11 without a gap.

  That is, the manufacturing die 2 for a combined decorative body of the present embodiment has the first ring-shaped decorative body 11 even when the first ring-shaped decorative body 11 and the second ring-shaped decorative body 12 itself have a design. And the 2nd ring-shaped decorative body 12 can be piled up without gap, and the united decorative body 1 whole can have a sense of unity.

(Second embodiment)
The manufacturing die for combination decorative body 2 ′ of the second embodiment is different from the manufacturing die for combination decorative body 2 of the first embodiment in that the pressing surface 31 of the upper pressing die 4 ′ and the lower pressing die 3 ′. Only the configuration of ', 41' and the configuration in which the positioning pin 36 (positioning member) is integrally formed on the pressing surfaces 31 ', 41' are different, so this different configuration will be described, and the other configurations will be described first. Since it is the same structure as 1 Example, description is abbreviate | omitted.

FIG. 8 is a perspective view showing the pressing surfaces 31 ′ and 41 ′ of the upper pressing mold 4 ′ and the lower pressing mold 3 ′ of the second embodiment, and FIG. 9 is a lower pressing mold 4 of FIG. It is the schematic which shows the positional relationship of 'and the 1st ring-shaped member 12a.
The coordinate system is the same as in the first embodiment.

  As shown in FIGS. 8 and 9, on the pressing surface 31 ′ of the lower pressing mold 3 ′, a first curved pressing surface 32 ′ (curved pressing) that presses the first ring-shaped member 11a and the second ring-shaped member 12a. And a first ring placed on the first curved pressing surface 32 ′, and a guide hole 43 through which a guide pin 43 to be described later is guided. A pair of positioning pins 36 (positioning members) for positioning the cylindrical member 11a and the second ring-shaped member 12a are formed.

  As shown in FIG. 9, the first curved pressing surface 32 ′ is formed with a size capable of pressing the first ring-shaped member 11 a and the second ring-shaped member 12 a, and is a disk having an outer diameter of at least 30 mm. It is formed to be bent.

  As shown in FIG. 9, it is located on the center line 37a of the first curved pressing surface 32 ', and is the radius (for example, 6.5 mm) of the inner diameter 37b of the ring size No. 1 from the outer peripheral edge of the first curved pressing surface 32'. A first reference point 37 (reference point) is provided at a position spaced apart from each other. With this first reference point 37 as the center, it is curved so as to wave in the circumferential direction, and the wave amplitude increases as it advances in the radial direction.

  As shown in FIG. 9, the pair of positioning pins 36 are formed so as to circumscribe the first curved pressing surface 32 'and extend upward from the pressing surface 31', for example, steel. The pair of positioning pins 36 are formed at symmetrical positions with a center line 37a passing through the first reference point 37 as a reference at intervals narrower than the inner diameter 37b of the ring size No. 1.

  By forming the pair of positioning pins 36 at such positions, even when the second ring-shaped member 12a set to the smallest inner diameter is placed on the first curved pressing surface 32 ′, the pair of positioning pins 36 is The second ring-shaped member 12a can be positioned with respect to the first curved pressing surface 32 ′ by contacting the two-ring-shaped member 12a.

  As shown in FIG. 8, the pressing surface 41 ′ of the upper pressing mold 4 ′ has a second curved pressing surface 42 ′ (curved pressing surface) that presses the first ring-shaped member 11a and the second ring-shaped member 12a. The protruding end face is positioned so as to sandwich the second curved pressing surface 42 ', extends downward, and is guided into the guide hole 33, and the pair of positioning holes 46 into which the pair of positioning pins 36 are inserted. , Is formed.

  As shown in FIG. 8, the second curved pressing surface 42 ′ is formed in a size corresponding to the first curved pressing surface 32 ′, and is formed so as to curve a disk having an outer diameter of 30 mm or more. Yes.

  As shown in FIG. 8, it is a position corresponding to the first reference point 37, and the inner diameter of the ring size No. 1 from the outer peripheral edge of the first curved pressing surface 32 ′ on the center line 47a of the second curved pressing surface 42 ′. A second reference point 47 (reference point) is provided at a position separated by a radius (for example, 6.5 mm). With this second reference point 47 as the center, it is curved so as to wave in the circumferential direction, and the wave amplitude increases as it proceeds in the radial direction.

  As shown in FIG. 9, the pair of positioning holes 46 are positioned so as to circumscribe the second curved pressing surface 42 ′ so as to correspond to the pair of positioning pins 36. The pair of positioning holes 46 are formed so as to be symmetrical with respect to the center line 48 passing through the second reference point 47 at an interval narrower than the inner diameter 47b of the ring size 1.

  In addition, about the specific structure of the guide hole 33 and the guide pin 43, since it is the same as the guide hole 33 and the guide pin 43 of 1st Embodiment, the same code | symbol is attached | subjected and description here is abbreviate | omitted.

  Similarly to the manufacturing mold 2 for the combined decorative body of the first embodiment, the manufacturing mold 2 ′ for the combined decorative body of the present embodiment also has the first curved pressing surface 32 ′ and the second curved pressing surface 42 ′ as the first. Manufacturing that manufactures a first ring-shaped decorative body (not shown) and a second ring-shaped decorative body (not shown) by forming the ring-shaped member 11a and the second ring-shaped member 12a with a size that can be sufficiently pressed. The mold can be shared.

  Further, in the same way, the first and second ring-shaped members 11a and 12a are manufactured in the same manner in the manufacturing die 2 'for the combined decorative body of the present embodiment as in the manufacturing mold 2 for the combined decorative body of the first embodiment. By forming the first ring-shaped decorative body 11 and the second ring-shaped decorative body 12 by using a mold, the first ring-shaped decorative body 11 and the second ring-shaped decorative body 12 themselves have a complicated shape. However, since the first ring-shaped decorative body 11 and the second ring-shaped decorative body 12 are curved with the same curvature, the second ring-shaped decorative body 12 is overlapped on the first ring-shaped decorative body 11 without any gap. Can do.

  Next, the manufacturing method of the combined decorative body 1 of the present embodiment is different from the manufacturing method of the combined decorative body 1 of the first embodiment in that the first ring-shaped member 11a and the second ring-shaped member are applied to the first curved pressing surface 32 ′. Since only the positioning work process (STEPs 2 and 5) of the member 12a is different from the removal work process (STEPs 4 and 7) of the first ring-shaped member 11a and the second ring-shaped member 12a, only these works will be described and other work will be described. Since the process is the same, detailed description here is omitted.

  10A is a plan view when the first ring-shaped member 11a is positioned on the lower pressing mold 3 ′ of FIG. 8, and FIG. 10B is a second view of the second pressing mold 3 ′ of FIG. It is a top view at the time of positioning the ring-shaped member 12a.

  The operator presses the first ring-shaped member 11a against the pair of positioning pins 36 in the lower pressing mold 3 ′ attached to the receiving portion, and the lower pressing mold as shown in FIG. The first ring-shaped member 11a is positioned with respect to the mold 3 ′.

  When the first ring-shaped member 11a is positioned on the lower pressing mold 3 ′, the operator depresses the pedal portion to move the upper pressing mold 4 ′ downward, so that the upper pressing mold 4 ′ and the lower pressing mold 3 ′ are moved downward. By pressing the first ring-shaped member 11a from both sides with the side pressing mold 3 ′, the first ring-shaped decoration is matched to the curved shape of the first curved pressing surface 32 ′ and the curved shape of the second curved pressing surface 42 ′. The body 11 is manufactured.

  When the first ring-shaped decorative body 11 is manufactured, the operator removes his / her foot from the pedal portion and removes the first ring-shaped member 11a from the lower pressing mold 3 '. In the same procedure, the operator abuts the second ring-shaped member 12a against the pair of positioning pins 36 of the lower pressing mold 3 ′, and as shown in FIG. 10 (B), the lower pressing mold 3 ′. The second ring-shaped member 12a is positioned with respect to the second ring-shaped decorative body, and the second ring-shaped decorative body that matches the curved shape of the first curved pressing surface 32 'and the curved shape of the second curved pressing surface 42' is manufactured. 1 manufacturing operation is completed.

  The manufacturing die 2 ′ for a combined decorative body of the present embodiment is merely abutting the first ring-shaped member 11a and the second ring-shaped member 12a against the pair of positioning pins 36 with respect to the lower pressing die 3 ′. Since it can position, the 1st ring-shaped member 11a and the 2nd ring-shaped member 12a with respect to lower side press metal mold | die 3 'can be fixed easily.

  In addition, the manufacturing die 2 ′ for the combined decorative body of the present embodiment does not need to change the positioning pin 36 in accordance with the sizes of the first ring-shaped member 11a and the second ring-shaped member 12a. There is no need to prepare a plurality of patterns, and the manufacturing cost of the first ring-shaped decorative body 11 and the second ring-shaped decorative body 12 can be reduced.

(Other examples)
The center of the pair of positioning pins 36 formed on the lower pressing mold 3 ′ of the second embodiment is narrower than the inner diameter of the ring size and passes through the first reference point 37 of the first curved pressing surface 32 ′. Although described as being formed at a symmetrical position with respect to the line 37a, the present invention is not particularly limited to this, and the interval is narrower than the inner diameter of the second ring-shaped member 12a, and the first curved pressing surface 32 ' It may be formed at a symmetrical position with respect to a center line 37a passing through one reference point 37.

  However, in this case, the pair of positioning holes 46 of the upper pressing die 4 ′ are also narrower than the inner diameter of the second ring-shaped member 12a, and the center passing through the second reference point 47 of the second curved pressing surface 42 ′. It is assumed that it is formed at a symmetrical position with respect to the line 47a.

  The first curved pressing surface 32 of the first embodiment and the first curved pressing surface 32 'of the second embodiment are waved in the circumferential direction around the protruding shaft portion 34 and the first reference point 37, and are advanced in the radial direction. However, the present invention is not limited to this, and it is only necessary that the wave is formed so as to wave in the circumferential direction around the protruding shaft portion 34 and the first reference point 37.

  In this case, the second curved pressing surface 42 of the first embodiment and the second curved pressing surface 42 ′ of the second embodiment are also similar to the first curved pressing surface 32 and the second curved pressing surface 32 ′. It may be formed so as to wave in the circumferential direction around 44 and the second reference point.

  In the first embodiment and the second embodiment, it has been described that the first ring-shaped decorative body 11 is fitted on a male finger and the second ring-shaped decorative body 12 is fitted on a female finger. The first ring-shaped decorative body 11 and the second ring-shaped decorative body 12 having different inner diameters may be used for pendant tops such as accessories.

  Further, in the first embodiment and the second embodiment, the case where the combination decorative body manufacturing molds 2 and 2 ′ are attached to the stepping type pressing device has been described. However, the present invention is not particularly limited thereto, and the upper pressing mold is used. 4, 4 ′ and lower pressing molds 3, 3 ′ are attached, and presses formed so that the upper pressing molds 4, 4 ′ move so as to press against the lower pressing molds 3, 3 ′. Any device (not shown) may be used.

  Furthermore, in the first and second embodiments, when the combination decorative body manufacturing molds 2 and 2 ′ are attached to the foot-operated pressing device, the first ring-shaped member 11a and the second ring-shaped member 12a are excessive. Although it demonstrated as a thing which does not use the control member which controls that it is pressed, it is not restricted to this in particular, The upper press metal mold | die 4 and 4 'are pressed with respect to the lower press metal mold | dies 3 and 3'. At this time, the first ring-shaped member 11a and the second ring-shaped member 12a may be formed to be pressed by using a regulating member.

  The present invention does not depart from its spirit or main features. Various other forms can be implemented. Therefore, the above-described embodiment is merely an example in all respects and should not be interpreted in a limited manner. The scope of the present invention is indicated by the scope of claims, and is not restricted by the text of the specification. Moreover, all modifications, various improvements, substitutions and modifications belonging to the equivalent scope of the claims are all within the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Combination decorative body 11 ... 1st ring-shaped decorative body 11a ... 1st ring-shaped member 12 ... 2nd ring-shaped decorative body 12a ... 2nd ring-shaped member 2, 2 '... Manufacturing mold (manufacturing metal mold) Type)
3, 3 '... lower pressing mold (pressing mold)
31, 31 '... Pressing surface 32, 32' ... First curved pressing surface (curved pressing surface) 33 ... Guiding hole 34 ... Projection shaft part (reference point) 34a ... Center line 35 ... Overhanging part 36 ... Positioning pin (positioning) 37) 1st reference point (reference point) 37a ... Center line 37b ... Inner diameter 4, 4 'of ring size No. 1 Upper pressing mold (pressing mold)
41, 41 '... pressing surface 42, 42' ... second curved pressing surface (curved pressing surface) 43 ... guide pin 44 ... shaft hole part (reference point) 44a ... center line 45 ... support part 46 ... positioning hole 47 ... first 2 reference point (reference point) 47a ... center line 47b ... inner diameter line 6 of ring size 1 ... first positioning member (positioning member)
7: Second positioning member (positioning member)

Claims (6)

A curved pressing surface obtained by bending the first ring-shaped member and the second ring-shaped member having an inner diameter smaller than the inner diameter of the first ring-shaped member so as to be pressed; A manufacturing tool for a combination decorative body comprising a pair of pressing dies that press and bend the two ring-shaped members from both sides,
The mold for a combined decorative body, wherein the curve of the curved pressing surface is formed so as to wave in the circumferential direction around a reference point on the curved pressing surface.   The manufacturing point for a combined decorative body according to claim 1, wherein the reference point of the curved pressing surface is located on a center line of the curved pressing surface.   3. The combination decorative body according to claim 1, wherein the curvature of the curved pressing surface is also formed so that the amplitude of a wave increases as it proceeds in a radial direction with the reference point as a center. Manufacturing mold. The manufacturing tool for the combined decorative body further includes:
A projecting shaft portion formed at the reference point in one of the pair of pressing dies;
A first positioning member that is mounted on the protruding shaft portion and circumscribes the first ring-shaped member to position the first ring-shaped member with respect to the one curved pressing surface;
A second positioning member that is mounted on the protruding shaft portion and circumscribes the second ring-shaped member to position the second ring-shaped member with respect to the one curved pressing surface. The manufacturing mold for a combined decorative body according to any one of claims 1 to 3. The manufacturing tool for the combined decorative body further includes:
One of the pair of pressing molds circumscribes the curved pressing surface, and is formed at a symmetrical position at an interval narrower than the inner diameter of the second ring-shaped member with respect to the center line on the one curved pressing surface. The first ring-shaped member and the second ring-shaped member are brought into contact with each other, and the first ring-shaped member and the second ring-shaped member are positioned with respect to the one curved pressing surface. A manufacturing die for a combined decorative body according to any one of claims 1 to 3, comprising a pair of third positioning members.   6. The manufacturing tool for a combined decorative body according to claim 1, wherein the curved pressing surface is formed by bending a disk having an outer diameter of 30 mm or more.

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