JP5063277B2 - Manufacturing method of body jewelry - Google Patents

Description

The present invention relates to a method for manufacturing a body accessory that directly contacts the body. More specifically, the present invention relates to a method for manufacturing a body accessory that can easily make an annular body accessory made of a band-shaped silicone elastomer.

  There are various forms of jewelry since ancient times. The accessory uses various materials depending on its form, and the processing methods are various. Furthermore, various designs and forms are diversified. Known accessories that come into direct contact with the body include watch bands such as bracelets, necklaces, brooches, and watchlets. The material is mostly made of synthetic resin or rubber because it has good contact with the skin, stretches well, and is easy to manufacture. For example, silicone elastomers are widely known and used. .

  In addition, as for these accessories to be attached to the wrist and neck, an annular one is used. In the case of a strip-shaped accessory, this annular form is a ring-shaped accessory by deforming its original shape into an annular shape and fixing the end portion by some method, and for example, a ring-shaped silicone elastomer was manufactured by molding from the beginning. Things are known. Taking a bracelet as an example, an annular accessory that is deformed into an annular shape and fixed to the end by some method is an example of a structure that can be attached and detached by making the connecting part of the end part detachable and detachable (See, for example, Patent Document 1).

  Moreover, although it is an example of a braided ring with a rubber core, an example in which an adhesive is applied to both ends and joined (see, for example, Patent Document 2) is also known. Further, as examples of ring-shaped integration by molding, bracelets in which jewelry is put inside jewelry, multicolor press-molded bracelets, rubber bracelets, etc. (for example, see Patent Documents 3, 4, and 5) are known. ing. Furthermore, as a modified example, a bracelet (see, for example, Patent Document 6) that is easily spirally attached and detached is also known. Further, a watch band or the like is also known as a type of accessory (for example, see Patent Documents 7 and 8).

JP 2006-147 A Registered Utility Model No. 3061632 Registered Utility Model No. 3128274 JP 2003-340855 A Japanese Patent No. 3847243 JP 2000-236921 A Japanese Patent Laid-Open No. 7-8308 JP-A-6-31434

  As described above, various body accessories have been known since ancient times. For example, accessories such as bracelets are often annular products as described above. In this accessory, there are various annular sizes depending on the size of the body or personal preference. The integrated ring-shaped bracelet is fine as long as it fits the size of the individual, but if it does not fit, a matching bracelet of a different size will be selected.

  In this case, when handled as a product, the types of sizes inevitably increase, and in order to manufacture them, a die for each size is required, and the cost of the die increases. If the size types are limited and limited, a bracelet having an allowance of an annular size is likely to come off when it is too large to fit the body. For this reason, it is ideal that the accessory such as a bracelet to be attached to the body is of a size that matches the body to some extent.

  Further, the integrated ring-shaped annular bracelet cannot be provided with a silicone elastomer layer having a different pattern or a different function on the skin contact side or the outer side which is the back surface in the manufacturing process. Therefore, for example, it was difficult to have a silicone elastomer layer mixed with fine titanium powder, which is considered good for promoting health only on the skin contact side.

  In addition, the type in which the belt-shaped accessory is deformed into an annular shape and the end portion is fixed is troublesome in its attaching / detaching operation, and is usually left as it is once fixed. Repeated attachment and detachment will loosen and become easy to come off. Therefore, for example, even a bracelet in which a band-shaped bracelet original body is formed into an annular shape, it is preferable that the end portion is completely fixed. As the method of fixing the end portion, a method of fixing with an adhesive as described above is disclosed, but it is not a complete fixing mode.

  In addition, since injection bonding is a product with a relatively small bracelet and it has an annular shape and the bonding method must be simple, the conventional technique may use complicated devices for bonding the ends. Therefore, practical adhesion was difficult. However, since the strip-shaped jewelry itself is easy to manufacture, and it is easy to manufacture various diversified shapes, etc., it is ideal that jewelry such as an annular bracelet that is simply fixed based on the strip-shaped accessory can be manufactured. Its manufacture was desired. Furthermore, it is difficult to manufacture a wide bracelet or the like by molding, and an annular one based on a belt-like one is not widely used.

The present invention was created to solve the above-described conventional problems, and achieves the following object. An object of the present invention is to provide a method of manufacturing a body accessory that is a cyclic silicone elastomer accessory so that both ends of the belt-like silicone elastomer accessory can be reliably bonded in a short time.

The present invention takes the following means in order to achieve the object.

The manufacturing method of the body accessory of the present invention 1
A method of manufacturing a jewelry to be attached in contact with a body,
A step of forming a band-shaped band-shaped silicone elastomer accessory comprising a silicone elastomer, and a ring-shaped ring-shaped silicone elastomer accessory , and a jewelry-bonding portion that is a recess filled with a bonding member for bonding both ends of the band-shaped silicone elastomer after the band-shaped silicone elastomer is deformed into an annular shape has, heating the coupling member, the pair of upper and lower dies for pressure treatment, a step of filling the coupling member to the accessory coupling portion of the lower mold and the upper mold, the the strip silicone elastomer accessory in the ring, the accessory coupling portion of the upper mold, a step of holding in alignment are opposed to both end portions of the band-like silicone elastomer accessory, the lower mold and the upper mold a step of superimposing upon alignment, the coupling member filled in the accessory coupling portion of the lower die and the upper die Heat and pressure treatment, and coupling the both end portions of the band-like silicone elastomer accessory together, the strip-shaped silicone elastomer accessory, said end portions and a step of molding the annular silicone elastomer accessory integrally coupled.

The method of manufacturing a body accessory according to the second aspect of the present invention is the method of manufacturing the body accessory according to the first aspect of the present invention, wherein the step of forming the annular silicone elastomer accessory having both ends integrally joined by the heating and pressurizing treatment is performed as It is a step of forming the annular silicone elastomer accessory by heating and pressurizing the belt-like silicone elastomer accessory in a state of being sandwiched between both lower molds.

The method for manufacturing a body accessory according to a third aspect of the invention is characterized in that, in the first or second aspect of the invention, the coupling member is a silicone elastomer that is filled in accordance with the shape of the coupling part of the jewelry.

The method for manufacturing a body accessory according to a fourth aspect of the present invention is the method for manufacturing a body accessory according to any one of the first to third aspects, wherein the band-shaped silicone elastomer accessory is annular, and the both ends of the band-shaped silicone elastomer accessory are connected to the accessory coupling portion of the upper mold. The step of holding the belt-shaped silicone elastomer accessory according to the opposite position is a step of bypassing the back side of the upper mold and holding the both end portions on the surface of the upper mold.

  The method for manufacturing a body accessory according to the present invention is a method in which a belt-like silicone elastomer accessory is made into an annular shape and both ends thereof are securely fixed by heating and pressing with a butt press. In this fixing method, press fixing is possible even in an annular shape, and an accessory such as a bracelet can be easily formed into an annular shape by integrally fixing the end portions facing each other from a belt shape. As a result, the band-shaped silicone elastomer accessory can be made into a cyclic silicone elastomer accessory having a surely fixed state of the end portion in a short time with a mold device having a simple configuration.

  Moreover, the body ornament of this invention can arrange | position the silicone elastomer layer which has a different pattern and a different function by the skin contact side or the outer side which is this back surface in the integrated ring shape. Therefore, for example, it is possible to have a silicone elastomer layer mixed with fine titanium powder, which is considered good for promoting health only on the skin contact side, and a decorated silicone elastomer layer on the outside. It became possible to use properly.

Embodiments of the present invention will be described with reference to the drawings.
In this embodiment, among various body accessories, a bracelet will be described as an example, but it goes without saying that other types of body accessories may be used. FIG. 1 is a plan view of a band-shaped silicone elastomer accessory 1 that is an original original form of a subject body accessory. This strip-shaped silicone elastomer accessory 1 is applied to a bracelet attached to a wrist, and is made of a silicone elastomer and is molded or cut. This silicone elastomer is, for example, an organosilicon polymer having a siloxane bond and has a rubber-like property.

  In order to use this as a body accessory, it must be deformed into an annular shape and the ends 2 must be joined to form a ring. FIG. 2 shows a state in which the band-shaped silicone elastomer accessory 1 is deformed into an annular shape and both end portions 2 face each other. In the band-shaped silicone elastomer accessory 1, both end portions 2 are stepped, and the central portion is a narrow convex portion. In order to make this band-shaped silicone elastomer accessory 1 into an annular bracelet, it is necessary to butt-bond the narrow convex portions of both end portions 2 to each other.

  In addition, the strip | belt-shaped silicone elastomer accessory 1 has comprised the various aspect for the decoration and health promotion on the skin contact side and outer side at the time of forming in a bracelet, as described in Unexamined-Japanese-Patent No. 2006-147. For example, the silicone elastomer layers on the skin contact side and the outside may be mixed with shellfish powder or calcium carbonate, or magnet powder may be blended to achieve a blood circulation effect by magnetism. Moreover, a silicone elastomer layer having a different design may be formed on the skin contact side and the outside, or a health promoting material having a different function may be mixed.

  For example, if decorations with different designs are applied on the skin contact side and the outside, the design can be selected according to the mood by turning the bracelet over. In addition, when health promoting materials having different functions are mixed, for example, when one has a blood circulation effect and the other has a deodorizing effect, they can be properly used depending on the situation.

  In the present embodiment, the silicone elastomer layer mixed with fine titanium powder is formed on the skin contact side and the silicone elastomer decorative projections on the outside. This is because a health promotion effect can be expected by forming titanium fine powder on the skin contact side close to the skin.

  In order to form a band-shaped silicone elastomer accessory 1 comprising a silicone elastomer accessory body having a silicone elastomer layer mixed with fine titanium powder on the skin contact side and a silicone elastomer decorative protrusion on the outside, an extrusion molding method, an injection molding method are used. Method or compression molding method can be applied. However, it is preferable to form by compression molding using a mold.

  That is, in this embodiment, in order to form a silicone elastomer accessory by compression molding, a continuous recess is formed in the silicone elastomer accessory body as the first step. As a second step, a titanium fine powder-containing silicone elastomer layer is filled in the continuous recesses. As a third step, a silicone elastomer decorative ridge is formed separately. And the strip | belt-shaped silicone elastomer jewelry 1 can be manufactured by mounting the jewelry main body obtained by the 2nd process on this decoration protrusion as a 4th process, and heat-pressing and integrating.

  In the present embodiment, the band-shaped silicone elastomer accessory 1 has a band-like cross-sectional shape, but may have another cross-sectional shape. For example, the cross-sectional shape may be circular, cylindrical, or elliptical. Moreover, the band-shaped silicone elastomer accessory 1 may form a cut for decoration or may be cut into a specific shape. For example, it may be hollowed out in the shape of a heart or diamond, or hollowed out into a specific alphabetic shape.

  Next, a method for joining both ends will be described. Since the bracelet itself is a silicone elastomer, products of various forms can be formed by molding. That is, since it is strip-shaped before being formed into a bracelet, it can have a silicone elastomer layer having the same or different decoration or function on the skin contact side and the outside. In any case, the product is used as an annular body. This embodiment is a body accessory obtained by annularly deforming a band-shaped silicone elastomer accessory 1 and is used by being brought into contact with and attached to the body. FIGS. 3 and 4 show a mold configuration for deforming into an annular shape and joining the two end portions 2 after butting them together. 4 is a cross-sectional view taken along line AA in FIG. The upper mold 3 is plate-shaped, and a groove 4 for installing the band-shaped silicone elastomer accessory 1 is provided on the surface of the upper mold 3.

  The width of the groove 4 is slightly smaller than the width of the band-shaped silicone elastomer accessory 1. The band-shaped silicone elastomer accessory 1 is elastically deformable, and is faced with both end portions 2 facing each other, and is installed against the pressing elastic force so as to press the intermediate portion into the groove 4. Further, a slightly wide and deep recess 5 is provided in the central portion of the groove 4. The abutted both end portions 2 are installed at the positions of the recesses 5. In this state, the band-shaped silicone elastomer accessory 1 is positioned and held by the upper mold 3 and therefore cannot be removed even if left alone.

  Before attaching the band-shaped silicone elastomer accessory 1, the coupling member 6 (shaded portion in FIG. 3) is filled in the recess 5 of the upper mold 3. The coupling member 6 is a silicone elastomer of the same quality as the band-shaped silicone elastomer accessory 1. Accordingly, the band-shaped silicone elastomer accessory 1 is installed on the upper mold 3 via the coupling member 6. The band-shaped silicone elastomer accessory 1 is formed by deforming the upper mold 3 around the back side of the upper mold 3 into an annular shape and embedding the upper mold 3 inside the annular mold 2 so that both ends 2 are the surfaces of the upper mold 3. It is attached to the dent 5.

  Next, the lower mold 7 having the same configuration is aligned and superposed on the upper mold 3. The lower mold 7 is also provided with similar grooves and depressions (not shown), and the coupling member 8 is filled only in the depressions. In this way, the band-shaped silicone elastomer accessory 1 is put together with the coupling members 6 and 8 with the two molds by placing the lower mold 7 on the upper mold 3.

  FIGS. 5, 6 and 7 show upper and lower mold configurations for joining the two end portions 2 after being deformed into an annular shape. FIG. 5 is an external view showing a configuration in which a band-shaped silicone elastomer accessory is heated and pressed with a mold to bond the bonding portions. FIG. 6 is a cross-sectional view taken along the line B-B in a state where the upper and lower molds of FIG. 5 are sandwiched between thermal brace plates. 7 is a cross-sectional view taken along the line CC of FIG. As shown in the mold configuration of FIGS. 5, 6 and 7, the band-shaped silicone elastomer accessory 1 is sandwiched between the lower mold 7 and the upper mold 3.

In this state, when the hot press plates 9 and 10 provided outside the mold are heated and pressurized, the two molds 3 and 7 are pressed, and the coupling members 6 and 8 are vulcanized to form a band-shaped silicone elastomer accessory 1. The periphery of the both ends 2 of is covered. After solidifying, when the molds 3 and 7 are opened, the band-shaped silicone elastomer accessory 1 becomes the annular silicone elastomer accessory 11 shown in FIG. The annular silicone elastomer accessory 11 is composed of a skin contact side surface 11a which is an annular inner side which is the skin side of the wearer and an outer side surface 11b which is the opposite side of the skin contact side surface. Since the joint portion is solidified along the shape of the recess 5 of the upper mold 3, it becomes an integrated shape with a constant shape.

  In the present embodiment, the band-shaped silicone elastomer accessory 1 is deformed into an annular shape around the back side of the upper mold 3. For this reason, by providing the groove 3 a on the back side of the upper mold 3, the outer side of the band-shaped silicone elastomer accessory 1 is prevented from directly touching the hot press plate 9. However, the groove 3 a may not be provided in the upper mold 3, and the groove may be provided in the hot press plate 9.

  Basically, an annular silicone elastomer accessory 11 such as a bracelet is manufactured by such a method as shown in FIG. However, when the bracelet must be finely adjusted to the size of the user, it can also be performed as follows. When the size is long, an annular bracelet having a slightly smaller diameter can be obtained by partially cutting the length of the concavo-convex portions at both ends 2 to a predetermined length. On the other hand, when the size is short, the two end portions 2 are slightly separated when being installed on the upper mold 3. Since the connecting member 6 is filled and integrated in the separated portion, an annular bracelet having a slightly larger diameter can be obtained.

  Next, another embodiment of the manufacturing method will be described. FIG. 9 partially shows a configuration in which the two end portions 2 of the band-shaped silicone elastomer accessory 1 are formed in an uneven shape and are installed in the upper mold 3 so as to be fitted. In a state of being fitted, the coupling member is filled and heated and pressurized to obtain the annular silicone elastomer accessory 11. FIG. 9 shows a rectangular undercut shape, which is configured to be difficult to come off when both end portions 2 are set in the upper mold 3 and the attachment position is stable, so that the annular silicone elastomer accessory 11 is securely bonded. . FIG. 10 shows an example in which both end portions 2 are each formed into a concavo-convex circular shape. The configuration and effects are the same as in FIG.

  FIG. 11 is a configuration example in which both end portions 2 are coupled so that the coupling member 6 is accommodated within the width of the band-shaped silicone elastomer accessory 1. FIG. 12 shows a configuration applicable to the wide band-shaped silicone elastomer accessory 1, but the center portion of both end portions 2 is abutted with an undercut concave groove 12 and the concave groove 12 is filled with the coupling member 13. It is an example. In this example, the connecting member 13 can be within the width of the accessory, and the annular silicone elastomer accessory 11 can be a straight accessory having no step at the connecting portion. In order to increase the contact area of the coupling member, the end shape is made uneven, but it goes without saying that the end portion may be a flat portion having the simplest configuration.

  In addition, after attaching the band-shaped silicone elastomer accessory 1, the lower mold 7 is overlapped, but instead of the lower mold 7, only the joining portion is a flat plate-like pressing member capable of being heated and pressurized, It may be configured to be heated and pressurized. As described above, the mold apparatus has a simple configuration and can perform the joining process in a short time. Furthermore, if this mold is installed in a sales department such as a bracelet, when a customer purchases a band bracelet, the mold device is used immediately after that and the ring bracelet is fitted to the customer's size on the spot. Can be manufactured and delivered as a finished product.

  While various embodiments of the present invention have been described above, the present invention is not limited to these embodiments. Needless to say, changes can be made without departing from the scope and spirit of the present invention.

FIG. 1 is a plan view of a band-shaped silicone elastomer accessory. FIG. 2 is an external view of a band-shaped silicone elastomer accessory that is deformed into an annular shape and has end portions abutted against each other. FIG. 3 is a plan view partially showing a mold configuration. 4 is a cross-sectional view taken along line AA in FIG. FIG. 5 is an external view showing a configuration in which a band-shaped silicone elastomer accessory is heated and pressed with a mold to bond the bonding portions. Figure 6 is a B - B cross-sectional view of a state sandwiched by the heat-flop-less plate the upper and lower molds of Fig. 7 is a cross-sectional view taken along the line CC of FIG. FIG. 8 is an external view of a cyclic silicone elastomer accessory. FIG. 9 is a partial plan view of a band-shaped silicone elastomer accessory having an end portion with a rectangular uneven shape. FIG. 10 is a partial plan view of a band-shaped silicone elastomer accessory having an end portion in a rectangular circular shape. FIG. 11 is a partial plan view of a band-shaped silicone elastomer accessory having a straight joint portion. FIG. 12 is a partial plan view showing a joint portion of a wide band-shaped silicone elastomer accessory.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Band-shaped silicone elastomer accessory 2 ... End part 3 ... Upper metal mold | die 4 ... Groove 5 ... Indentation 6 ... Connecting member 7 ... Lower metal mold | die

Claims (4)

A method of manufacturing a jewelry to be attached in contact with a body,
A step of forming a band-shaped silicone elastomer accessory (1) comprising a silicone elastomer;
After the band-shaped silicone elastomer is deformed into an annular shape, it has a clothing accessory coupling part (5) that is a recess filled with a coupling member for coupling both ends of the band-shaped silicone elastomer, and the coupling member is heated and pressurized. a pair of upper mold (3) and lower mold (7), a step of filling the coupling member (6, 8) to the accessory coupling portion of the lower mold and the upper mold (5),
The strip silicone elastomer accessory to (1) in the annular, the accessory coupling portion of the upper mold, a step of holding both ends in alignment are opposed in the band silicone elastomer accessory (1),
A step of aligning the upper mold and the lower mold after alignment ;
The coupling member (6) filled in the jewelry coupling part (5) of the upper mold and the lower mold is heated and pressurized to integrally bond the both ends of the band-shaped silicone elastomer jewelry. And forming the band-shaped silicone elastomer accessory into a ring-shaped silicone elastomer accessory in which both ends are integrally joined . In the manufacturing method of the body accessory of Claim 1 ,
The step of forming the annular silicone elastomer accessory having both ends integrally bonded by the heating and pressurizing treatment includes sandwiching the band-shaped silicone elastomer accessory by both the upper mold and the lower mold. A method for producing a body accessory, which is a step of heating and pressurizing in a state to form the annular silicone elastomer accessory . In the manufacturing method of the body accessory of Claim 1 or 2 ,
The method for manufacturing a body accessory, wherein the connecting member (6) is a silicone elastomer filled in accordance with the shape of the accessory connecting part (5). In the manufacturing method of the body accessory according to any one of claims 1 to 3 ,
The step of forming the band-shaped silicone elastomer accessory (1) in an annular shape and holding the both end portions of the band-shaped silicone elastomer accessory (1) at the opposing position on the accessory coupling part of the upper mold is performed as described above. Manufacturing of a body accessory characterized in that the accessory (1) bypasses the back side of the upper mold (3) and the both ends (2) are held on the surface of the upper mold (3). Method.

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