JP5623189B2 - Decorative piece - Google Patents

Description

  The present invention relates to a decorative piece used for a wristband or a bracelet, and more particularly to a decorative piece using ceramics.

  Conventionally, various structures have been proposed for decorative pieces used for wristbands, bracelets and the like according to the design. In particular, a decorative piece using ceramics for the band piece has come to be used for high-grade decorative items because ceramics are hard to be damaged and have excellent wear resistance. As an example of using such ceramics, Patent Document 1 discloses a substantially rectangular band piece provided with a straight through hole in the thickness of the piece main body in the watch body direction, and an opening communicating with the through hole of the band piece. Is provided in the axis of the rod-shaped main body, bearing holes communicating with the opening in the axis from the side end surface of the rod-shaped main body are provided on both sides of the shaft, and a spacer provided with protrusions from both ends of the rod-shaped main body toward the equipment side of the watch A combination of a predetermined number of chain pieces formed with the front and rear sides of the plate-like body as shaft joints and a plurality of connecting pins, and each protrusion is fitted into both ends of the through hole so that the spacer is positioned on the front side of the equipment side of the watch Assemble the band piece together, and keep the gap between the adjacent band pieces with spacers, and combine the band pieces and spacers alternately. The grip is positioned in the opening of the spacer, the plate-shaped main body is positioned in the through hole of the band piece, the chain piece, the band piece and the spacer are combined, and the connecting pin is placed in the bearing hole of each spacer and the opening of the spacer. A wristwatch band is disclosed in which a band main body is assembled in a chain shape from each of the combined parts by being inserted into a shaft joint of a chain piece that is positioned.

Japanese Patent No. 3924635

  However, the ornament piece used for a conventional wristwatch band or the like has a problem that the end of the connecting pin used to connect the pieces and the head of the screw are seen from the side, and the decorativeness is impaired. In a band using ceramic pieces, further ingenuity was required to solve these problems appropriately.

  For example, the wristwatch band of Patent Document 1 is a part of the connecting parts because the end of the connecting pin can be seen on the side of the spacer when the band is viewed from the side by disposing the spacer between the pieces. There is a problem that the decorativeness is impaired due to exposure.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an ornamental piece that does not expose the end of the connecting pin or the head of the screw on the side surface of the ornamental piece, and that is not easily chipped or worn even if the piece is entirely made of ceramics.

The ornament piece according to the present invention is a ornament piece formed by connecting a plurality of sets of a first piece, a second piece, a connector, and a pin, and the first piece has a flat plate shape. A through-hole comprising a recessed portion provided on the front surface side and the rear surface side and a hole portion connecting the respective recessed portions, and the second piece is disposed in the recessed portion and has a column shape. in, as well as have a housing portion comprised of a hole or notch for accommodating a portion of said connector comprises a pin engagement portion is a hole penetrating to the end face of the accommodation portion, the connector is , Disposed in the through hole of the first piece, provided on one of the recessed portions, provided on one side of the receiving portion of the second piece, and provided on the other recessed portion side. The adjacent one-side insertion portion is sandwiched between the accommodating portions of the adjacent second pieces. And the one side insertion part and the other side insertion part have a pin hole for inserting the pin therein, and the one side of the coupling tool. The insertion portion, the other-side insertion portion of the adjacent connecting tool, and the pin engaging portion of the second piece are connected by the pin, and the end portion of the pin and the pin engaging portion are It is covered with the inner wall of a hollow part .

Further, ornament piece of the present invention, in the above Ki構 formed, the first piece and the second piece is characterized in that it consists of ceramic.

According to the ornament piece of the present invention, the first piece, the second piece, the coupling tool, and the pin are one set, and the ornament piece is formed by connecting a plurality of sets. The first piece is a flat plate. A through-hole comprising a recessed portion provided on the front surface side and the rear surface side and a hole portion connecting the recessed portions, and the second piece is disposed in the recessed portion. , columnar, as well as have a housing portion comprised of a hole or notch for accommodating a portion of said connector comprises a pin engagement portion is a hole penetrating to the end face of the accommodation portion, the connecting ingredients are disposed in the through hole of the first frame, provided at one said well side, said one side insertion portion disposed in the housing portion of the second piece, the other said well side The one insertion portion adjacent to the storage portion of the adjacent second piece is sandwiched between The one side insertion portion and the other side insertion portion have a pin hole for inserting the pin therein, and the connector of the connector The one side insertion portion, the other side insertion portion of the adjacent connecting tool, and the pin engaging portion of the second piece are connected by the pin, and the end portion of the pin and the pin engaging portion Is covered by the inner wall of the indented portion, so that the end of the pin , the pin engaging portion and the connecting tool are not exposed from the side of the decorative piece, and when the band is wound around the wrist, The internal connector is difficult to be exposed.

  Further, the decorative article piece according to the present invention has the above-described configuration, wherein the second piece has a pin engaging portion continuous with the pin hole of the other-side insertion portion, and the one-side insertion of the connector And the other side insertion portion of the adjacent connecting tool and the pin engaging portion are connected by the pin, so that the rotation axes of the connecting tool and the first piece are substantially coincident with each other. It becomes easy to bend the article piece smoothly smoothly.

  In the decorative article piece according to the present invention, in the above configuration, the pin engaging portion is a hole that penetrates from the housing portion to the end face of the second piece, so that the pin is inserted from the end face side of the second piece. Thus, the second piece and the connector can be engaged with each other, and the assembling work is facilitated.

Further, ornament piece of the present invention, in the above Ki構 formed, from said first piece and said second piece is made of ceramics, to have uniformity in difficult texture and color to chipping and wear luxury It becomes easy to obtain a beautiful appearance with a feeling.

An example of the 1st piece which is a part of ornament piece which is this embodiment is shown, (a) is a top view, (b) is a front view, (c) is a rear view, (d) Is a bottom view, and (e) is a right side view. An example of the 2nd piece which is a part of ornament piece which is this embodiment is shown, (a) is a top view, (b) is a front view, (c) is a right view. The other example of the 2nd piece which is a part of ornament piece which is this embodiment is shown, (a) is a top view, (b) is a front view, (c) is a right view, (D) is a bottom view. An example of the coupling tool which is a part of the decorative article piece of the present embodiment is shown. (A) is a plan view, (b) is a front view, (c) is a rear view, and (d) is a back view. It is a right view. It is a perspective view which shows an example of the pin which is a part of ornament piece of this embodiment. FIGS. 6-1 (a), (b) to FIGS. 6-4 (a), (b) are schematic cross-sectional views for explaining how to assemble the ornamental piece according to the present embodiment. 6A is a schematic cross-sectional view as viewed from the upper surface side, and FIGS. 6A to 6B are FIGS. 6A to 6B. -4 (a) is a schematic cross-sectional view taken along line DD ′. An example of the assembly figure of the ornament piece which is this embodiment is shown, (a) is a plan view, (b) is a front view, and (c) is a sectional view showing a state where the ornament piece is bent. It is.

  Examples of embodiments of the present invention will be described below.

  Various materials such as metal, resin, leather, or ceramics are used for decorative pieces used for watch bands and bracelets. In particular, a decorative piece made of ceramic is often used for high-grade products because it has high hardness and is not easily damaged, and can maintain a beautiful appearance over a long period of time. On the other hand, ceramics, unlike other materials, have high hardness and are difficult to work with, and thus are easily chipped. Therefore, a special connection structure is required when used as a decorative piece.

And this embodiment is the ornament piece formed by connecting a plurality of sets, with the first piece, the second piece, the connector and the pin as one set, and the first piece is in a flat plate shape, It has through-holes consisting of indentations provided on the front side and rear side, and holes connecting the respective indentations,
The second piece is disposed in the indentation part, has a columnar shape, and has a housing part made up of a hole or a notch for housing a part of the coupling tool, and the coupling tool is disposed in the through hole of the first piece. One side insertion portion provided on one recess portion side and disposed on the second piece housing portion, and one side insertion portion provided on the other recess portion side and adjacent to the second piece housing portion And the other side insertion part, which has a pin hole for inserting a pin therein, and is provided on one side of the coupling tool. It is important that the insertion portion and the insertion portion on the other side of the adjacent connector are connected by a pin.

  Next, an example of this embodiment will be described.

  FIG. 1 shows an example of a first piece that is a part of a decorative article piece according to the present embodiment, (a) is a plan view, (b) is a front view, and (c) is a rear view. , (D) is a bottom view, and (e) is a right side view.

  The first piece 1 which is a decorative part of the present embodiment shown in FIGS. 1A to 1E is mainly composed of an upper surface 13 and a side surface 12 when the ornamental piece is wound around the wrist. Is done. The lower surface 14 is a surface in contact with the wrist, and a through hole is formed by a recessed portion 16 provided on the front surface side 10 and the rear surface side 11 and a hole portion 17 communicating the recessed portions 16 with each other.

When the ornamental piece is wound around the wrist in the first piece 1, the upper surface 13 and the side surface 12 are the portions that are visible because they are visible, and the lower surface 14 is the wrist side, so it is worn It becomes an important part in feeling. In addition, the recess 16 is a part that accommodates the second piece 2 when assembling the ornamental piece, and the inner surface of the recess 16 that rubs against the second piece 2 is a mirror surface or a smooth surface with little unevenness. It is preferable not to damage the surface of the second piece 2.

  And the hole part 17 is a part which accommodates the coupling tool 3 when assembling the ornament piece, and the cross section of the hole part 17 is rectangular as shown in FIGS. .

  FIG. 2 shows an example of a second piece which is a part of the ornament piece according to the present embodiment, (a) is a plan view, (b) is a front view, and (c) is a right side view. is there.

  The second piece 2 shown in FIGS. 2A to 2C has a columnar shape, and an accommodation portion 24 including a hole penetrating from the second piece front surface 20 side to the second piece rear surface 21 side in the center, and the accommodation portion 24. To the end face 22 of the second piece 2, and the pin engaging part 23 is formed at the center of the end face 22 of the circular second piece 2.

  When the second piece 2 shown in FIGS. 2 (a) to 2 (c) is assembled into a decorative piece, the second piece 2 accommodates an insertion portion of the connector 3 (to be described later) in the accommodation portion 24, and the first piece before and after the first piece. One recess 16 is accommodated. The surface of the first piece 1 that is in contact with the indented portion 16 is preferably a mirror surface or a smooth surface with little unevenness, so that it is less likely to be damaged and the durability is preferably increased.

  FIG. 3 shows another example of the second piece which is a part of the ornament piece according to the present embodiment, (a) is a plan view, (b) is a front view, and (c) is a right side view. It is a figure and (d) is a bottom view.

  The second piece 2 shown in FIGS. 3 (a) to 3 (d) has a columnar shape, a housing part 24 having a notch in the center, and a pin engaging part of a hole penetrating from the housing part 24 to the second piece end surface 22. The pin engaging portion 23 is circular and is formed at the center of the second piece end face 22.

  Further, the second piece 2 shown in FIGS. 3A to 3D has a housing portion 24 with a notch shape, but whether the housing portion 24 has a hole shape or a notch shape has a second shape. What is necessary is just to select suitably by the shaping | molding method when producing the 2 pieces 2 with ceramics, and the design of the ornament piece.

  FIG. 4 shows an example of a coupling tool that is a part of the decorative article piece of the present embodiment, (a) is a plan view, (b) is a front view, and (c) is a rear view, (D) is a right side view.

  4 (a) to 4 (d) is formed by the other-side insertion portion 33 on the other-side insertion portion 33 side in order to connect the other-side insertion portion 33 and the one-side insertion portion 34. The connection concave portion 35 has a connection convex portion 36 that is one side insertion portion 34, and the pin 4 is inserted into each of the other side insertion portion 33 and the one side insertion portion 34 (connection convex portion 36). The pin hole 31 is provided. Hereinafter, the one side insertion part 34 may be referred to as a connecting part convex part 36.

  The second piece 2 and the connecting tool 3 can be fixed by inserting a pin 4 described later into the pin hole 31 of the connecting tool 3 and the pin engaging portion 23 of the second piece.

  FIG. 5 is a perspective view showing an example of a pin that is a part of the ornamental piece of the present embodiment.

  As a pin used for an example of the pin 4 shown in FIG. 5, known parts such as a simple pin, a spring pin, a split pin, and a press-fit pin can be used. Furthermore, a bolt, a wire, or the like can be used as the fixture 4.

  Hereinafter, how to assemble this embodiment will be described with reference to FIGS. 6-1 (a) and (b) to FIGS. 6-4 (a) and (b).

  FIGS. 6-1 (a), (b) to FIGS. 6-4 (a), (b) are schematic cross-sectional views for explaining how to assemble the ornamental piece according to the present embodiment. 6A is a schematic cross-sectional view as viewed from the upper surface side, and FIGS. 6A to 6B are FIGS. 6A to 6B. -4 (a) is a schematic cross-sectional view taken along line DD ′.

  First, as shown in FIGS. 6-1 (a) and (b) and FIGS. 6-2 (a) and (b), the connecting tool 3 is first inserted into the hole 17 of the first piece 1. .

  Next, as shown in FIGS. 6-3 (a) and (b), the second piece 2 is inserted into the accommodation portion 24 so that the insertion portion of the connection device 3 is accommodated in the accommodation portion 24. At the same time as inserting from the side, about half of the second piece 2 is accommodated in the recessed portion 16 on the rear surface side 11 of the first piece 1, and the pin connection portion 23 of the second piece 2 and the one side insertion portion 34 of the connector 3 The position is determined so that the pin hole 31 communicates.

  Next, as shown in FIGS. 6-4 (a) and 6 (b), positioning is performed so that the pin system coupling portion 23 of the second piece 2 and the pin hole 31 of the one-side insertion portion 34 of the connector 3 communicate with each other. Then, in order to connect the next connecting tool 3, the connecting protrusion 36 of the connecting tool 3 and the connecting recess 35 of the connecting tool 3 to be connected next are fitted simultaneously, and at the same time, the pin joint portion of the second piece 2 23 and the pin hole 31 of the connecting convex part 36 of the connecting tool 3 and the pin hole 31 of the other side insertion part 33 of the connecting tool 3 to be connected next are positioned so as to communicate with each other. The pin 4 is inserted into the pin hole 31 of the connecting convex portion 36 of the connecting part 3 and the pin hole 31 of the other side insertion part 33 of the connecting tool 3 to be connected next. By repeating these steps, the first piece 1, the second piece 2, the connector 3 and the pin 4 are connected.

  As described above, in the example of the present embodiment, the decorative piece has a recess 16 of the first piece 1 because the interval between the second pieces 2 is constrained by the second piece 2, the connector 3, and the pin 4. It is possible to keep the clearance between the second piece 2 accommodated in the first piece 1 and the indented portion 16 of the first piece 1 uniform throughout the ornamental piece. As a result, even if the first piece 1 and the second piece 2 are made of ceramics, the first piece 1 and the second piece 2 may be damaged or worn due to repeated large friction in specific parts of the decorative piece. It is possible to suppress the life of the decorative piece from being deteriorated and the appearance from being deteriorated.

  FIG. 7 shows an example of an assembly drawing of the ornamental piece according to this embodiment, (a) is a plan view, (b) is a front view, and (c) is a state where the ornamental piece is bent. FIG.

  In the example shown in FIGS. 7A to 7C, the connector 3 and the pin 4 are accommodated inside the first piece 1 and the second piece 2. Therefore, when the ornamental piece 70 is wound around the wrist, when viewed from the upper surface side, only the second piece 2 can be seen from the gap A of the first piece 1 and the connector 3 is not exposed. Further, when viewed from the end face 22 side of the second piece 2, the pin 4 is inside the recessed portion 16 of the first piece 1, so that the end of the pin 4 is not exposed and has a beautiful appearance. You can get 70.

  Further, the ornamental piece 70 is bent along the surface where the indented portion 16 of the first piece 1 and the front surface 20 and the rear surface 21 of the second piece 2 are in contact with each other. It is excellent in wearing feeling and has a high-class appearance.

  The decorative article piece of the present embodiment has a pin engaging part that is continuous with the pin hole of the other side insertion part, and one side insertion part of the coupling tool, and the other side insertion part of the adjacent coupling tool, It is preferable that the pin engaging part is connected with the pin.

  For example, when the connector 3 as shown in FIG. 4 is used, the center of the second piece 2 and the position of the pin hole 31 of the connector 3 are substantially coincident when viewed from the end face 22 side of the second piece 2. If it arrange | positions, since the rotation axis | shaft of the connector 3 and the 1st piece 1 substantially corresponds, it becomes easy to bend the ornament piece as a whole smoothly.

  In the decorative article piece of the present embodiment, it is preferable that the pin engaging portion is a hole penetrating from the accommodating portion of the second piece to the end face.

  For example, a split pin or a press-fit pin is used as the pin 4, and as shown in FIG. 6-3, the pin engaging portion 23 of the second piece 2 and the pin hole 31 of the connector 3 are positioned so as to communicate with each other. 4 is inserted into the pin engaging portion 23 from the end face 22 of the second piece 2 and inserted through the pin hole 31 to the pin engaging portion 23 on the opposite side, so that the assembling work can be easily performed and The product piece 70 can be easily disassembled and repaired for repair.

  In the ornamental piece of this embodiment, when the second piece is sandwiched between the adjacent first pieces and accommodated in the recessed portion, the pin engaging portion may be located inside the recessed portion of one of the first pieces. preferable.

  For example, a simple pin is used as the pin 4 and, as shown in FIG. 6B, the pin engaging portion 23 of the second piece 2 and the pin hole 31 of the connector 3 are positioned so as to communicate with each other. Inserting into the pin engaging portion 23 from the end face 22 of the second piece 2 and inserting it through the pin hole 31 to the opposing pin engaging portion 23 requires almost no force to insert the pin 4, further facilitating assembly work. In addition, it is easier to disassemble the decorative piece 70 for repair. In particular, as shown in FIG. 7, when the second piece 2 is housed inside the indented portion 16 of the first piece 1 and used for a decorative piece 70 having a design in which the pin engaging portion 23 cannot be seen from the side, Since the engaging portion 23 is covered from both ends by the inner wall of the recessed portion 16 of the first piece 1, the pin 4 is difficult to come off simply by assembling.

  In the decorative article piece of the present embodiment, the first piece 1 and the second piece 2 are preferably made of ceramics.

  By forming the first piece 1 and the second piece 2 with ceramics, the decorative piece 70 can be unified with ceramics when wound around the wrist, and the texture and color tone are made uniform. It becomes easy to obtain a beautiful appearance with a sense of quality.

  Next, a manufacturing method in the case where ceramics are used for the first piece 1 and the second piece 2 constituting the ornamental piece 70 of the present embodiment will be described.

  As the ceramics used for the first piece 1 and the second piece 2 constituting the decorative article piece 70 of the present embodiment, known materials such as silicon carbide, alumina, zirconia containing a stabilizer, or cermet can be used.

  For example, a raw material in which 95% by mass of silicon carbide and 5% by mass of alumina as a sintering aid are mixed into a ball mill and pulverized to a predetermined particle size to produce a slurry, which is then spray dried using a spray dryer To form granules.

  Next, if the kneaded material obtained by putting the granules and the thermoplastic resin into a kneader and kneading while heating is put into a pelletizer, pellets as a raw material for injection molding (injection molding) can be obtained. it can. In addition, as a thermoplastic resin thrown into the kneader, an ethylene vinyl acetate copolymer, polystyrene, an acrylic resin, or the like may be added in an amount of about 10 to 25% by mass with respect to the mass of the ceramic. The heating temperature may be set to 140 to 180 ° C. The kneading conditions may be appropriately set according to the type and particle size of ceramics and the type of thermoplastic resin.

Then, when the obtained pellets are put into an injection molding machine (injection molding machine) and injection molded, molded bodies that become the first piece 1 and the second piece 2 are obtained. At this time, the obtained molded body is usually accompanied by a runner in which excess raw materials obtained by injection molding are cooled and solidified, and therefore, they are cut before degreasing.

  The silicon carbide may be fired in a vacuum atmosphere or in an inert gas atmosphere such as argon or helium. The maximum temperature is 1900-2200 ° C., and the holding time at the maximum temperature is 1-5 hours. The black ceramics can be obtained.

  Furthermore, when zirconia ceramics or alumina ceramics containing a stabilizer is used as the ceramics constituting the first piece 1 and the second piece 2 constituting the decorative piece 70 of the present embodiment, it is used alone. In the case of coloring, a metal oxide such as iron oxide, cobalt oxide, chromium oxide or nickel oxide may be added as a pigment.

For example, 95% by mass of zirconia containing yttria as a stabilizer is mixed at a ratio of 5% by mass of nickel oxide, and this raw material is put into a ball mill and pulverized to a predetermined particle size to produce a slurry, sprayed By spray-drying using a dryer to form granules, if they are put into an injection molding machine and injection-molded in the same manner as described above, the molded bodies to become the first piece 1 and the second piece 2 are obtained and fired. Blue-green ceramics are obtained.

  In addition, in order to obtain the shapes of the first piece 1 and the second piece 2 constituting the ornamental piece 70 of the present embodiment, the first piece 1 and the second piece 2 are obtained based on a general injection molding method. What is necessary is just to produce the shaping | molding die from which a shape is obtained, and to install this in an injection molding machine and to carry out injection molding. Thereby, the first piece 1 and the second piece 2 having a desired shape can be easily obtained.

  Here, as firing conditions for zirconia ceramics or alumina ceramics, if firing is performed in an air atmosphere or in a vacuum atmosphere, the maximum temperature is in the range of 1300 to 1500 ° C., and the holding time at the maximum temperature is 1 to 5 hours. Good.

  Furthermore, when cermet is used as the ceramic constituting the first piece 1 and the second piece 2 constituting the decorative piece 70 of the present embodiment, titanium carbide or titanium nitride is the main component, and as a binder. Nickel or cobalt may be used, and molybdenum, chromium, or a carbide thereof may be added as a sintering aid.

For example, 90% by mass of titanium nitride is mixed with 6% of nickel oxide, 2% by mass of chromium carbide and 2% by mass of molybdenum, and this raw material is put into a ball mill and pulverized to a predetermined particle size. If the slurry is prepared and spray-dried using a spray dryer to form granules, and then injected into an injection molding machine and injection-molded in the same manner as described above, the molded bodies to become the first piece 1 and the second piece 2 Is obtained, and when fired, a golden ceramic is obtained.

  In addition, in order to obtain the shapes of the first piece 1 and the second piece 2 constituting the ornamental piece 70 of the present embodiment, the first piece 1 and the second piece 2 are obtained based on a general injection molding method. What is necessary is just to produce the shaping | molding die from which a shape is obtained, and to install this in an injection molding machine and to carry out injection molding. Thereby, the first piece 1 and the second piece 2 having a desired shape can be easily obtained.

  Here, as the firing conditions of the cermet, the maximum temperature may be set in a range of 1300 to 1500 ° C. in a vacuum atmosphere or an inert gas atmosphere, and the holding time at the maximum temperature may be 1 to 5 hours.

As described above, when the ornament piece of this embodiment is used to assemble the watch case 5, the end of the connecting pin and the head of the screw are not exposed on the side surface of the ornament piece 70, and the band is wound around the wrist. Therefore, it is possible to provide a decorative piece that is not easily chipped or worn even if the piece is made entirely of ceramics.

1: First piece 2: Second piece 3: Connecting tool 4: Pin 5: Watch case 6: Spacer
10: Front side
11: Rear side
12: Side
13: Top surface
14: Bottom
15: Slope
16: Recessed part
17: Hole
20: Front of second piece
21: The back of the second piece
22: End face
23: Pin engaging part
24: Containment section
33: Insertion part on the other side
34: Insertion on one side
35: Connection recess
36: Convex projection
31: Pin hole
70: Decorative piece

Claims (2)

A first piece, a second piece, a connecting tool and a pin as a set, and a piece for a decorative piece formed by connecting a plurality of sets,
The first piece has a flat plate shape, and includes through-holes formed by depressions provided on the front side and the rear side, and holes connecting the depressions.
The second piece is arranged in the recess, with columnar, as well as have a housing part consisting of hole or notch for accommodating a portion of the connector, with holes penetrating to the end face of the accommodation part It has a certain pin engagement part ,
The connector is disposed in the through hole of the first piece, provided on one of the recessed portions, and disposed on the receiving portion of the second piece, and on the other recessed portion side. And the other side insertion portion disposed so as to sandwich the one side insertion portion adjacent to the accommodation portion of the adjacent second piece, and the one side insertion portion and the other side insertion portion. And has a pin hole for inserting the pin inside,
The one side insertion portion of the connector, the other side insertion portion of the adjacent connector, and the pin engaging portion of the second piece are connected by the pin, and the end of the pin and The decorative article piece, wherein the pin engaging portion is covered with an inner wall of the recessed portion . The ornament piece according to claim 1, wherein the first piece and the second piece are made of ceramics.