JP4769269B2 - Jewelery fasteners and accessories - Google Patents

Description

  The present invention mainly relates to a fastener for a jewelry such as a necklace, a bracelet, a watch band, or a waist belt, and more particularly, to a fastener for a jewelry and a jewelry using a magnetic force by a magnet.

  The conventional jewelry such as chained jewelry using magnets has a plurality of magnets facing each other, fixed in the vertical direction, and in the left and right direction, a protrusion or groove is formed on the holding body to which the magnet is fixed. A fixing method is used (Patent Document 1 and others).

  In addition, the external appearance of the pair of holding bodies is often used in an irregular shape, and fixing with respect to the rotation on the surface facing the magnet is performed by a ring-shaped suspension ring formed integrally with the holding body. The method is utilized (patent document 2 etc.).

In general, the magnet is protected by being plated or painted with gold or silver.
Japanese Utility Model Publication No. 3-64015 JP-A-9-276015

  Bond-type magnets are used in conventional fasteners for jewelry that use magnets. However, bond-based magnets are weak in mechanical strength, have many occurrences of chipping, rust, etc., and are not suitable for long-term use. In many cases, the magnet is protected by plating, coating, or the like, but the strength of the protective film is insufficient, and there is a defect that rusting proceeds due to scratches or the like.

  In addition, when using a magnetized magnet, the process of incorporating the magnet into the holder is performed while confirming the magnetic pole, so that the work is complicated and the workability is remarkably deteriorated.

  Further, when a plating process or the like is required after embedding a magnet in the holding body, there is a disadvantage that it is expensive because it is a complicated plating process.

  In addition, conventional fasteners for jewelry using magnets are mainly made of a non-magnetic material or a noble metal material for the holding body. It has been pointed out that there is a danger that it will adversely affect equipment and become a source of noise.

  In addition, in the fasteners for jewelry using a magnet, various methods for ensuring the coupling have been proposed and implemented. However, there are many drawbacks that are difficult to remove because no method for facilitating attachment / detachment is found.

  The present invention has been made to solve the above-described problems, and provides a fastener for jewelry and a jewelry that can sufficiently protect a magnet that generates a coupling force and that can reduce adverse effects on an electronic device. Objective. Another object of the present invention is to provide a fastener for a jewelry and a jewelry that can reduce adverse effects on an electronic device and that are not easily disconnected.

In order to achieve the above object, the fastener for jewelry according to the present invention is a noble metal in a recess provided in one of a pair of holding bodies in a fastener for jewelry that is freely attached to and detached from the middle of the accessory or between both ends. place a magnet metal cover is covered consisting the one fastener body, by placing a magnet placed over the metal cover made of noble metal as the other fastener body in a recess provided in the other of the holding member, it becomes capable of binding both fastener body by causing opposed to the metal cover of one of the metal cover and the other above, the magnets arranged in the recess of one of the holding member described above, the other holding member and the counter A washer made of a magnetic material is disposed on the surface opposite to the surface to be operated.

In the fastener for jewelry, the magnet is protected by the presence of the metal cover, and cracks and rust are less likely to occur. In addition, since the washer made of a magnetic material prevents leakage of magnetic flux, adverse effects on the electronic devices due to the leakage magnetic flux are reduced.

In addition, the fastener for jewelry of the present invention is a fastener for jewelry that can be freely attached / detached in the middle of the accessory or between both ends, and a metal cover made of noble metal is covered in a recess provided on one of the pair of holders. The magnet is arranged as one fastener metal body, the magnet provided with a metal cover made of a noble metal in the recess provided in the other holding body is arranged as the other metal fastener body, and the one metal cover partially protrude was provided a protrusion from one fastener body, the other magnet side arranged so as part recess on the other of the fastener body occurs, that the protrusion Konoku Bomi portion engaged together with case possible, of the magnets arranged in the recess of one of the holding member described above, the above other holding member which faces the surface opposite the washer made of a magnetic material is disposed.

In the fastener for jewelry, the magnet is protected by the presence of the metal cover, and cracks and rust are less likely to occur. In addition, since the washer made of a magnetic material prevents leakage of magnetic flux, adverse effects on the electronic devices due to the leakage magnetic flux are reduced.

In another aspect of the invention, the depth t1 of the indented portion, the thickness t2 of the washer, and the thickness t3 of the portion not included in the indented portion of one magnet are: 1.5 to 2.5: The range is 1.5 to 2.5.

  By setting the relationship between the depth t1 of the indented portion, the thickness t2 of the washer, and the thickness t3 of the portion not included in the indented portion of the magnet within the above range, The coupling force is strong, and the magnetic flux leakage prevention force is also strong.

  Furthermore, in addition to the above-described invention, in another invention, at least one of a magnet arranged on one holding body or a magnet arranged on the other holding body is covered with a cover formed in a cap shape, and one holding is held. A magnetic cap made of a magnet disposed on the body or a magnetic body formed in a cap shape and a magnet disposed on the other holding body can be magnetically coupled via the bottom surface of the cover. In addition, since the metal cover is always interposed in the joint portion of the both fastener body to be magnetically coupled, the magnet is protected and cracks and rust are less likely to occur.

  Furthermore, in addition to the above-described invention, another invention makes it possible to use a knockout bar by making the magnet cylindrical.

  Furthermore, another invention makes it possible to use a knockout bar by making the washer cylindrical.

Further, in another invention, the inner peripheral surface of the concave portion of the holding body has a shape in which the opening side widens by α degrees with respect to the vertical direction, and the outer peripheral side surface of one metal cover covered with the magnet is limited to the opening side by α degrees. By adopting the shape, it is easy to perform the punching operation when the holding body is punched, and the protruding portion of one of the metal covers is easily engaged with the indented portion provided in the stopper metal body.
more than

  In another aspect of the invention, the outer periphery of the magnet covered with the metal cover is inclined with respect to the inner peripheral side surface of the recess by β degrees where the outer peripheral surface of the metal cover is smaller than the previous α degree. Thus, the magnet and the metal cover can be fixed by fitting.

  Furthermore, another invention makes it possible to mass-produce the holders having the same shape with high accuracy by forming the pair of holders by press molding of noble metal.

  Moreover, the accessory of this invention attaches one fastener main body of the fastener for jewelry of any one of Claim 1 to 9 to one end, and attaches the other fastener main body to the other end.

  This accessory can improve the stopper part, that is, the protection of the magnet that generates the coupling force is sufficient, the assembly work efficiency is high, and the adverse effect on the electronic equipment due to the leakage magnetic flux is reduced. It becomes a product with high added value compared to the conventional products because it has a strong binding force with respect to the lateral force, or it can be easily disconnected by using a knockout bar.

  Hereinafter, fasteners for jewelry according to embodiments of the present invention will be described with reference to the drawings. The fasteners for jewelry are provided in the middle or both ends of jewelry such as a necklace, bracelet, watch band, waist belt, etc., and the middle part and both ends are attached and detached.

  First, a fastener 10 for jewelry according to a first embodiment will be described with reference to FIGS. 1 to 4. Here, FIG. 1 is a front sectional view of the fastener 10 for jewelry, FIG. 2 is a plan view of the holding body, and FIG. 3 is a sectional view taken along line AA of FIG. FIG. 4 is a diagram showing a manufacturing flow of the fastener 10 for jewelry.

  The jewelry fastener 10 includes a pair of fastener bodies 1 and 2. Each fastener main body 1, 2 has a hemispherical outer diameter of about 9.2 mm and a thickness of about 3.5 mm. The fastener main body 1 is formed of a half-shaped holding body 11 and a magnetic body cap 12 made of a magnetic material formed in a cap shape, that is, a cylindrical shape having a bottom.

  The holding body 11 is produced by press-molding from a silver plate having a plate thickness of 1.5 mm and a plate width of 25 mm. At the time of this press-molding, as shown in FIGS. 2 and 3, a large circular concave portion 13, a small circular concave portion 14 having a circular arc shape provided at the bottom of the concave portion 13, and a chain or string-like ornament are fixed. A hanging part 15 is formed at the same time.

  In addition, “SILVER” shown in FIG. 2 is stamped by press molding after press molding for shape formation. Thereafter, a circular through hole 16 is formed in the suspended portion 15 by punching.

  Next, a cap-shaped magnetic cap 12 (pure iron in this embodiment) is dropped into the recess 13 and fixed with an adhesive. The outer peripheral surface of the recess 13 has a shape in which the opening side widens by α degrees with respect to the vertical direction, while the outer peripheral side surface of the magnetic cap 12 has a shape in which the opening side is narrowed by the α degrees.

  In this embodiment, 2 degrees is adopted as the α degree. By making the opening side of the concave portion 13 of the holding body 11 wide, the punching operation at the time of punching becomes easy. Further, the protrusion W of the magnetic cap 12 (the portion protruding from the flat portion 31 of the fastener main body 1 facing the fastener main body 2 to the side of the fastener main body 2) due to the α-degree gap is the fastener main body 2. It becomes easy to engage with the indented portion Y (the portion recessed from the flat portion 41 of the fastener body 2 facing the fastener body 1 to the side opposite to the fastener body 1 side).

  The clasp main body 2 includes a half-shaped holding body 21 and a columnar magnet 22 covered with a bottomed cylindrical metal cover 22a. The holding body 21 has the same material and shape as the holding body 11 and is manufactured by the same manufacturing method. As shown in FIGS. 2 and 3, the holding body 21 has a large circular recess 23, an arc-shaped small-diameter circular recess 24 formed at the bottom of the recess 23, and a hanging part 25. . “SILVER” is similarly engraved, and the circular through hole 26 is also formed by punching.

  Thereafter, the magnet 22 with the metal cover 22a covered with the recess 23 is fitted. The magnet 22 is a bond-type magnet, and the metal cover 22a is a stainless material that is a kind of magnetic material. Although the magnet 22 and the metal cover 22a are fitted and both are coupled by magnetic force, a light press-fit or an adhesive may be used for fixing them.

  The outer periphery of the magnet 22 covered with the metal cover 22a is configured to have a smaller diameter from the flat portion 41 toward the small-diameter circular recess 24. That is, the outer peripheral surface of the metal cover 22a is inclined with respect to the inner peripheral side surface of the recess 23 by β degrees that is smaller than the previous α degree. In this embodiment, β degree is set to 1 degree. The magnet 22 with the metal cover 22a is incorporated in the recess 23 and fixed with an adhesive.

  As described above, the magnetic cap 12 of one fastener body 1 protrudes from the flat portion 31, and the magnet 22 covered with the metal cover 22 a disposed on the other fastener body 2 has the flat portion 41. It is arranged so as to dent. When the two clasp main bodies 1 and 2 are coupled by a magnetic force, the protrusion W and the recess Y are engaged with each other (in this embodiment, between the outer peripheral side surface of the recess Y and the outer peripheral side surface of the protrusion W. Since both the clasp main bodies 1 and 2 are strongly coupled to each other by a slight gap in the coupling or a state in which both are in contact with each other), a force in the same direction as the plane of the plane portions 31 and 41 is applied. Even if strongly applied, the bond cannot be easily broken.

  In addition, due to the magnetic coupling between the magnet 22 and the magnetic cap 12, the two clasp main bodies 1 and 2 are not easily detached even when a release force in a direction perpendicular to the plane of the plane portions 31 and 41 is applied. Become.

  Further, the presence of the metal cover 22a protects the magnet 22 and makes it difficult for the magnet 22 to crack or rust. Further, since the magnet 22 is disposed only on the side of the fastener body 2, the work while confirming the magnetic pole becomes unnecessary, and the work efficiency becomes high. Further, the cap-shaped magnetic cap 12 makes it difficult for the magnetic flux from the magnet 22 to leak to the outside. And since it is set as a cap shape, internal space can be taken large and the increase in the weight of the metal fitting main body 1 can be prevented.

  As described above, the magnet 22 in this embodiment is a bond-type magnet. Among the bond-type magnets, samarium-cobalt type is particularly preferable in consideration of the size and the strength of the magnetic force. In addition, the metal cover 22a covering the magnet 22 is important in terms of plate thickness and weather resistance. For this reason, stainless steel with a plate thickness of 0.15 mm or less is desirable. In addition, a noble metal material can be used, and further, any non-metal material can be used as long as the plate thickness can be controlled to a predetermined value.

  Conventionally, the magnet to be used has been plated or painted. However, there are many drawbacks in that chipping, scraping, etc. occur during embedding and rusting occurs from that portion. However, in this embodiment, no special treatment is required for the magnet 22, and the magnet 22 is protected by the metal cover 22a, so that almost no chipping or scraping occurs.

  The magnetic cap 12 made of a magnetic material used in this embodiment requires a thickness that can sufficiently absorb the magnetic force. Moreover, by making it cap shape, there exists an effect which prevents the magnetic leakage to the periphery as mentioned above. In this embodiment, as the magnetic body cap 12, a pure iron material having a plate thickness of 0.3 to 0.45 mm is used, and plating treatment is performed for rust prevention. In consideration of improving weather resistance, ferritic stainless steel may be used.

  Next, a manufacturing process flow of the jewelry fastener 10 of this embodiment will be described with reference to FIG.

  First, a silver plate made of silver and having a thickness of 1.5 mm and a width of 25 mm is received and prepared (step S101). Next, the material is removed to determine an approximate outer diameter (step S102). Then, the recessed parts 13 and 23 used as the outer diameter and inner diameter of the holding bodies 11 and 21 are formed in a predetermined shape by the first press molding (step S103). Next, the recesses 13 and 23 and the small-diameter circular recesses 14 and 24 of the holding bodies 11 and 12 are finished with higher accuracy by the second press molding, and “SILVER” is also engraved (step S104).

  Next, it pulls out with a press according to the shape of the holding bodies 11 and 21 (step S105). Thereafter, guide holes are provided to provide the through holes 16 and 26 in the hanging parts 15 and 25 (step S106). Next, barrel processing is performed on the extracted cross section by the first barrel processing (step S107). Thereafter, if necessary, appearance inspections such as scratches, deformation, rust and the like are performed (step S201), and silver brazing material is applied as paste to the inner surfaces of the through holes 16 and 26 of the hanging parts 15 and 25. A can (an oval metal wheel for attaching a chain or string) is fixed (step S108).

  Thereafter, if necessary, a function test is performed to check the fixed strength of the small can (step S202). Next, the outer surfaces of the holding bodies 11 and 21 are mirror-finished by a gloss dry barrel that is the second barrel process (step S109). Thereafter, if necessary, an intermediate inspection for inspecting the appearance and sagging is performed (step S203).

  Next, a plating process is performed, and rhodium is applied to the entire surfaces of the holding bodies 11 and 21 (step S110). Thereafter, an appearance inspection similar to step S201 is performed as necessary (step S204). Next, the cap-shaped magnetic body cap 12 (step S301) that has already been formed and the metal cover 22a that has been formed (step S302) and assembled to the magnet 22 (step S303) 21 (step S111). Then, by drying (step S112), the fixing strength by the adhesive is improved. It should be noted that caulking may be performed instead of or together with drying.

  Finally, a completion inspection, which is an appearance inspection for visually checking for rust or the like, is performed (step S113). As described above, the accessory fastener 10 including the pair of fastener bodies 1 and 2 is completed. Note that after the completion inspection (step S113), a functional inspection such as a magnetic force inspection, an appearance inspection as in step S201, a shipping inspection, and the like may be appropriately performed.

  According to this manufacturing method, since the plating process and the barrel process are performed before the magnet 22 is fixed, a complicated plating process is not required, and the barrel process is facilitated.

  Next, a fastener 50 for jewelry according to a second embodiment will be described with reference to FIGS. 5 and 6. In addition, the same code | symbol is attached | subjected to the same member as the member shown in 1st Embodiment, and the description is abbreviate | omitted or simplified.

  The jewelry fastener 50 is basically the same as the jewelry fastener 10, and different parts are fitted into the shapes of the recesses 13 and 23 provided in the holding bodies 11 and 21 and the recesses 13 and 23. It is the shape of the magnetic body cap 12 and the metal cover 22a. Another difference is that a small oval can 51 is shown on the drawing.

  The recesses 13 and 23 provided in the holders 11 and 21 of the fastener 50 for jewelry are not a circular recess but a gourd shape as shown in FIG. It has a shape having bulging portions 52, 52 bulging outward. In accordance with this shape, the magnetic cap 12 is not a bottomed circular shape but a bottomed cylindrical shape in which the shape of the bottom is the same as the shape of the outline of the recess 13 shown in FIG. By adopting such a shape, the magnetic cap 12 fitted in the recess 13 does not rotate relative to the holding body 11 in the circumferential direction.

  In accordance with the shape of the recess 23 shown in FIG. 6, the metal cover 22 a is also a bottomed cylindrical shape in which the shape of the bottom covering the magnet 22 is the shape of the outline of the recess 23 shown in FIG. 6. With such a shape, the metal cover 22 a fitted in the recess 23 does not rotate relative to the holding body 21 in the circumferential direction. The magnet 22 has a cylindrical shape as in the first embodiment.

  Next, a fastener 60 for jewelry according to a third embodiment will be described with reference to FIGS. The jewelry fastener 60 is the same as the jewelry fastener 10 of the first embodiment in the basic configuration, and is the same as or similar to the member shown in the first embodiment. A reference numeral is attached, and the description thereof is omitted or simplified.

  There are the following five main points that the fastener 60 for jewelry is different from the fastener 10 for jewelry of the first embodiment.

  The first is that the holders 11 and 21 are changed from hemispherical to substantially cylindrical (maximum diameter portion is 5 mm diameter). Second, the knockout bar 61 (this function will be described later) is arranged using the space S that is the internal space of the magnetic cap 12. The third point is that the magnet 22 side covered with the metal cover 22a protrudes from the flat portion 41 to form a protruding portion W, while the recessed portion Y is formed on the side where the magnetic cap 12 is disposed.

  Fourthly, there are no hanging parts on the holding bodies 11 and 21 of the fasteners 60 for jewelry, and circular cans 62 and 62 for attaching chains and the like are silver brazed to the side surfaces of the holding bodies 11 and 21. It is a point. The fifth point is that the knockout bar 61 enters and exits at the bottom of the magnetic cap 12, and a circular insertion hole 63 for protruding is provided.

  In this accessory fastener 60, as in the case of the accessory fasteners 10, 50 of the first and second embodiments, the holders 11, 21 having the same external shape and a pair are configured as a basis. The upper end of the knockout bar 61 is a semicircular semicircular sphere portion 64, and the other end abuts against the metal cover 22a by pressing the semicircular sphere portion 64 with a finger. By pushing the knockout bar 61 while blocking the movement of the fastener main body 1 with a hand or a finger, the fastener main body 2 is uncoupled from the fastener main body 1 and both are released.

  The knockout bar 61 has a circular portion having a diameter larger than that of the locking portion 66 that prevents the knockout bar 61 from being detached from the stopper body 1, that is, the circular insertion hole 63 and the guide hole 65 shown in the upper part of FIG. 7. A locking portion 66 is provided. Further, a circular pushing recess 67 is formed at the upper end of the holding body 11 in FIG. 7 so that the knockout bar 61 can be pushed by a finger. Further, in this embodiment, a sponge material 68 is installed in the space S between the bottom of the magnetic cap 12 and the locking portion 66, and the two metal fittings 1 and 2 are engaged. When not in the state, the knockout bar 61 is prevented from jumping out of the circular insertion hole 63 so much. Further, if a magnetic material is used as the material of the knockout bar 61, the strength of the magnetic force can be concentrated on the center portion, and the coupling force between the two fastener main bodies 1 and 2 can be increased.

  Furthermore, in this embodiment, the indented portion Y is deepened, while the protruding portion W is raised, and the engaging force with respect to the force parallel to the plane of the flat portions 31 and 41 is strengthened. In the conventional method, the mechanical strength of the magnet is weak, and bending or chipping occurs, and the side surface of the magnet cannot be used. However, in this embodiment, the metal cover 22a is covered so as to cover the magnet 22. Therefore, the side surface of the magnet 22 can be fully utilized.

  In addition, by installing the knockout bar 61 on the stopper body 1, the coupling can be easily released even if the engagement force by the magnet 22 is sufficiently strong. Even if the engagement force in the direction parallel to the portions 31 and 41 is increased (the engagement depth is increased), the removal is easy. That is, while it is possible to increase the coupling force in both the vertical direction and the lateral direction in FIG. 7, it is possible to easily perform the coupling with one hand when releasing the coupling, thereby improving convenience.

  In the third embodiment, by exposing the metal cover 22a and the magnet 22 from the holding body 21, cleaning of dust, dust, and the like attached by magnetism is facilitated. Further, the thickness (length) of the magnet 22 can be increased, the magnetic force can be increased, and the coupling becomes strong. In addition, the metal cover 22a can reinforce the bending strength (breaking strength) of the magnet 22, and can secure the tensile strength to the left and right.

  Next, a fastener 70 for jewelry according to a fourth embodiment will be described with reference to FIGS. 9 and 10. The jewelry fastener 70 is the same as the jewelry fastener 10 of the first embodiment in the basic configuration, and is the same or the same type of member as the members shown in the first and third embodiments. Are denoted by the same reference numerals, and the description thereof is omitted or simplified.

  The jewelry fastener 70 is different from the jewelry fastener 10 of the first embodiment mainly in the following five points.

  The first difference is that the holding bodies 11 and 21 in the first embodiment are hemispherical, whereas the holding bodies 11 and 21 in the fourth embodiment have a bottomed circular shape. Is a point. The holding bodies 11 and 21 according to the fourth embodiment are formed in a thin plate shape and are formed by drawing instead of press molding. And the circular mountain-shaped center part 71 of the holding body 11 can be deform | transformed below by pressing. The material of the holding bodies 11 and 21 of the fourth embodiment is a white material or a gold alloy (K18) material, and the spring property is ensured. The plate thickness of the holders 11 and 21 is desirably about 0.25 to 0.40 mm.

  The second difference is that the knockout bar 61 is arranged using the space S of the magnetic body cap 12 in the fourth embodiment. Moreover, unlike the third embodiment, the knockout bar 61 is completely covered with the central portion 71 of the holding body 1 so that the tip is not exposed to the outside. That is, the knockout bar 61 is built in the holding body 11.

  The third difference is the configuration of entering and exiting the opposing portions of the two clasp main bodies 1 and 2. In the first embodiment, the magnetic cap 12 protrudes from the flat portion 31 and the magnet 22 with the metal cover 22a is recessed from the flat portion 41, whereas the fourth embodiment In the form, it is configured to go in and out alternately.

  That is, the ring-shaped magnet 22 protected by the metal cover 22a is formed on the other holding body 21 of the pair of holding bodies 11 and 21, and a part of the metal cover 22a is squeezed into a concave shape to form a molding recess. Y1 is set. One holding body 11 is attached with a magnetic cap 12 formed with a protruding portion W1 that is opposed to the concave recess portion Y1 of the metal cover 22a and is convex so as to enter the recess portion Y1. In addition, a circular insertion hole 63 is provided in a part of the magnetic body cap 12 so as to house the knockout bar 61 therein.

  Furthermore, the tip of the ring-shaped magnet 22, or more precisely, the magnet 22 with the metal cover 22a is a second protrusion W2 that protrudes toward the one fastener body 1 and the protrusion W2 faces the other. The portion is provided with a second recessed portion Y2 in which the magnetic cap 12 is recessed inward. Thus, the protrusion W1 of the magnetic cap 12 and the recess Y1 of the metal cover 22a are at the center, and the protrusion W2 by the metal cover 22a and the magnet 22 and the recess Y2 of the magnetic cap 12 are at the outer periphery. It is formed and has a shape with intricate irregularities. With this configuration, the coupling strength in the lateral direction of FIG. 9 is strengthened and stabilized.

  The fourth difference is the configuration of the magnet 22. In each of the embodiments described above, the magnet 22 has a cylindrical shape. However, the magnet 22 in the fourth embodiment has a ring shape as shown in FIG. 9, and a space S1 is formed at the center. Yes. This space S1 is useful for providing a configuration in which the opposing surfaces are complicated as described above, and has the effect of reducing the weight by reducing the overall thickness.

  The fifth difference is the configuration of the magnetic body cap 12. In the fourth embodiment, similarly to the third embodiment, a circular insertion hole 63 is provided at the bottom of the magnetic body cap 12 so that the knockout bar 61 enters and exits and is protruded, and a circle is formed at the center. It differs from the first embodiment in that a protruding portion W1 having a shape is provided.

  In the fastener 70 for jewelry, the knockout bar 61 is in contact with the indented portion Y1 serving as a concave portion of the metal cover 22a and the inside of the central portion 71 of the holding body 11 when the fastener main bodies 1 and 2 are coupled. It is set to length. When the engagement (coupling) is released, the knockout bar 61 is lowered in FIG. 9 by pushing the central portion 71 of the holding body 11, and the coupling is released by pushing down the stopper main body 2. In the case of this configuration, in addition to being able to release the coupling by pushing the central portion 71 while holding the clasp body 1 by hand, the other clasp body 2 is pressed against the human body etc. The connection can be easily released by pressing the central portion 71 without moving further.

  As described above, the fastener 70 for jewelry can be flattened and reduced in weight, can have a strong coupling force, and can easily be uncoupled. As a material for the holding bodies 11 and 21, a precious metal is desirable, so that weight reduction is a great merit. In addition, although the strength can be lowered by making it thin, since the rib shape is added to the metal cover 22a and the magnetic body cap 12 and the coupling portion is a double bond, the coupling strength is greatly enhanced. ing. In addition, it is good also as a magnet which does not make the magnet 22 ring shape but has the recessed part which does not penetrate in the center.

  Next, a fastener 80 for jewelry according to a fifth embodiment will be described with reference to FIGS. 11 and 12. The jewelry fastener 80 is the same as the jewelry fastener 10 of the first embodiment in the basic configuration, and is the same or the same type of member as the members shown in the first and third embodiments. Are denoted by the same reference numerals, and the description thereof is omitted or simplified.

  The features of the accessory fastener 80 are as follows. The first is to provide a clasp 80 for a jewelry that has increased added value by forming a decorative object 81 that is a part of the design of the holding bodies 11 and 21 and is a decorative ornament at the tip of the knockout bar 61. Is.

  The second feature is that the coupling mechanism is unitized. This unitization has the following two effects. That is, the external appearance of the holding bodies 11 and 21 is configured by separating the holding bodies 11 and 21 from the coupling mechanism (the magnet 22, the metal cover 22a, the antimagnetic cap 82, the magnetic cap 12, the antimagnetic cap 82, and the knockout rod 61). Diversity in design and design variety can be enhanced. Moreover, standardization is achieved by the unitization of the coupling mechanism, and the manufacturing cost is reduced.

  A third feature is that noise due to magnetic waves can be further reduced by disposing two anti-magnetic caps 82 and 82 having the same shape made of a magnetic material.

  In the fastener 80 for jewelry, the magnetic body cap 12 and the knockout bar 61 fitted into the antimagnetic cap 82 are formed on one of the holders 11 of the pair of holders 11 and 21 having different shapes. Further, the other holding body 21 is formed with a magnet 22 covered with a metal cover 22 a fitted in the antimagnetic cap 82.

  Further, the ornamental fitting 61b that penetrates the holding body 11 and part of the antimagnetic cap 82 and becomes a part of the knockout bar 61 is engaged with the internal knockout part 61a that forms the other part of the knockout bar 61. Form. And the ornament 81, such as a pearl, is formed in the front-end | tip part of the decoration metal fitting 61b. The two anti-magnetic caps 82 and 82 are fixed so that a gap is generated between the outer periphery and the center of each of the holding body 21 and the holding body 11. The antimagnetic caps 82 and 82 are fixed to the holding bodies 11 and 21 after the built-in objects such as the magnet 22 and the magnetic body cap 12 are attached.

  The holding bodies 11 and 21 are manufactured with a noble metal material mainly by the lost wax method (casting method) or the like. The suspension parts 15 and 25 are fixed to the holding bodies 11 and 21 by brazing or the like. The antimagnetic caps 82 and 82 are fixed to the holding bodies 11 and 21 by brazing or welding. In this state, necessary surface treatment (plating treatment, etc.) is performed to adjust the appearance.

  The magnetic cap 12 containing the internal knockout portion 61a of the knockout bar 61 is fitted into the pair of one holding bodies 11 and fixed by adhesion. The other holding body 21 is fitted with a magnet 22 protected by a metal cover 22a and bonded and fixed. The decorative fitting 61b is inserted through the holes of the holding body 11 and the antimagnetic cap 82 so as to be coupled to the internal knockout portion 61a, and is fixed with an adhesive screw. A decorative object 81 such as a pearl is adhered and fixed to the tip of the decorative fitting 61b to complete.

  In addition, it is good also as a design without the knockout stick | rod 61 and the ornament 81 if necessary. Further, the antimagnetic caps 82 and 82 are preferably made of an absorptive metal. In this embodiment, ferritic stainless steel that can be easily brazed or welded to the holders 11 and 21 is used. In addition, since the antimagnetic caps 82 and 82 also have a coupling function, in consideration of mechanical strength, weather resistance, and the like, a material with a plate thickness of 0.2 mm or more that is easy to draw press processing is preferable.

  As shown in FIG. 12, in the fastener 80 for jewelry according to the fifth embodiment, both the holding bodies 11 and 21 have a rhombus shape in plan view, and both the antimagnetic caps 82 and 82 are in the second shape. The shape is the same as that of the concave portions 13 and 23 of the holding body of the embodiment, and the magnetic cap 12 and the metal cover 22a to be fitted are prevented from rotating.

  Next, a fastener 90 for jewelry according to a sixth embodiment will be described with reference to FIG. The jewelry clasp 90 is the same as the jewelry clasp 10 of the first embodiment in the basic configuration, and is the same as or similar to the members shown in the first embodiment. A reference numeral is attached, and the description thereof is omitted or simplified.

  A feature of the fastener 90 for jewelry is that a washer 91 and a magnet 92 are arranged on the holding body 11. That is, the magnet 92 with the metal cover 92a is also arranged on the holding body 11, thereby improving the coupling force and extending the magnetic force retention. Further, a washer 91 made of a magnetic material is disposed adjacent to the magnet 92 and on the back side of the magnet 92, thereby enabling concentration of magnetic flux and reduction of leakage magnetic flux.

  In the accessory clasp 90 according to the sixth embodiment, the washer 91 and the magnet 92 with the metal cover 92a are both cylindrical as shown in FIG. Is possible. However, any one or more of the metal cover 92a, the magnet 92, and the washer 91 may not be cylindrical, but may be disk-shaped. In this embodiment, the depth t1 of the indented portion Y is half the thickness t2 of the washer 91, and the thickness t3 of the portion of the magnet 92 that is not in the indented portion Y is the thickness t2 of the washer 91. Are the same. For this reason, the coupling | bonding force with respect to the force to a horizontal direction is strong, and the leakage prevention power of magnetic flux also becomes strong. As described above, if the relationship between t1, t2, and t3 is not 1: 2: 2, but 1: 1.5 to 2.5: 1.5 to 2.5, substantially the same effect is obtained. Obtainable.

  Each of the above embodiments is an example of a preferred embodiment of the present invention, but various modifications can be made without departing from the gist of the present invention. For example, in the first to fourth and sixth embodiments, the holding bodies 11 and 21 have the same shape, thereby facilitating manufacture and reducing the manufacturing cost. The holders 11 and 21 can be made different by making them different shapes as in the above embodiments, making the recesses 13 and 23 similar, or making the decorations different even though they have the same size and shape. It is good also as a shape.

  In each embodiment, the magnet 22 is covered with the metal cover 22a made of a magnetic material. However, the magnet 22 is covered with a non-magnetic metal cover such as aluminum or a non-magnetic cover made of resin. May be. Furthermore, a magnet material that does not rust is used, and a paint film or a plating film may be applied instead of the cover, or a magnet that is not subjected to any application may be used. Further, a magnetic force may be improved by arranging a magnet in a portion where the sponge material 68 is arranged.

  According to each embodiment of the present invention, it is possible to obtain a fastener for jewelry and a jewelry that can sufficiently protect a magnet that generates a coupling force and that can reduce adverse effects on an electronic device. Further, according to some or all of the embodiments, it is possible to obtain an accessory fastener and an accessory that can reduce adverse effects on the electronic device and that are not easily disconnected.

  Furthermore, according to some or all of the embodiments, it is possible to obtain an accessory fastener and an accessory that can reduce adverse effects on the electronic device and that can be easily disconnected. In addition, according to some of the embodiments in the carrying of each embodiment, it is possible to protect the magnets that generate the binding force, and to reduce the adverse effects on the electronic equipment, and to eliminate the need for complicated plating processes. The manufacturing method of a metal fitting can be obtained.

It is front sectional drawing of the fastener for jewelry accessories which concerns on the 1st Embodiment of this invention. It is a top view of the holding body which is a component of the fastener for jewelry shown in FIG. It is the sectional view on the AA line of FIG. It is a figure which shows the flow of the manufacturing process of the fastener for jewelry accessories shown in FIG. It is front sectional drawing of the fastener for jewelry accessories which concerns on the 2nd Embodiment of this invention. It is a top view of the holding body which is a component of the fastener for jewelry shown in FIG. It is front sectional drawing of the fastener for jewelry accessories which concerns on the 3rd Embodiment of this invention. It is a top view of the clasp for jewelry shown in FIG. It is front sectional drawing of the fastener for jewelry accessories which concerns on the 4th Embodiment of this invention. It is a top view of the fastener for jewelry shown in FIG. It is front sectional drawing of the fastener for jewelry accessories which concerns on the 5th Embodiment of this invention, and is sectional drawing by the AA sectional line of FIG. It is a top view of the fastener for jewelry shown in FIG. It is front sectional drawing of the fastener for jewelry accessories which concerns on the 6th Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 One metal fitting main body 2 The other metal fitting main body 10 Jewelery metal fittings 11 One holding body 12 Magnetic body cap 13 Recessed part 14 Small diameter circular recessed part 15 Suspension part 16 Through-hole 21 Other holding body 22 Magnet 22a Metal cover 23 Concave part 24 Small-diameter circular concave part 25 Suspended part 26 Through hole 61 Knockout stick 81 Decoration (decoration for decoration)
W, W1 Protruding part Y, Y1 Recessed part

Claims (9)

In the fastener for jewelry that can be freely attached and detached in the middle of the jewelry or both terminals,
By placing a magnet covered with a metal cover made of noble metal in a recess provided in one of a pair of holding bodies, one fastener metal body,
A magnet with a metal cover made of a noble metal placed in a recess provided in the other holding body is used as the other fastener body,
It is configured so that the two metal clasp bodies can be coupled by facing the one metal cover and the other metal cover,
The magnets disposed in the recess of one of the holding member described above, the surface opposite to the above other holding member which faces, personal ornaments stop, wherein a washer made of a magnetic material is disposed Hardware. In the fastener for jewelry that can be freely attached and detached in the middle of the jewelry or both terminals,
By placing a magnet covered with a metal cover made of a noble metal in a recess provided in one of a pair of holding bodies, one fastener metal body,
A magnet with a metal cover made of a noble metal placed in a recess provided in the other holding body is used as the other fastener body,
Protruding part of one of the metal cover above from one fastener body is provided a protrusion, and the other magnet side arranged as part recess on the other of the fastener body occurs, Konoku Bomi portion the protrusion is configured to be engageable with,
The magnets disposed in the recess of one of the holding member described above, the surface opposite to the above other holding member which faces, personal ornaments stop, wherein a washer made of a magnetic material is disposed Hardware. The depth t1 of the indented portion, the thickness t2 of the washer, and the thickness t3 of the portion of the one magnet not in the indented portion are 1: 1.5 to 2.5: 1.5 to The fastener for jewelry as set forth in claim 2, which is in a range of 2.5. The said metal magnet is cylindrical, The fastener for jewelry of any one of Claims 1-3 characterized by the above-mentioned. The said metal washer is cylindrical shape, The fastener for jewelry of any one of Claims 1-4 characterized by the above-mentioned. The inner peripheral surface of the concave portion of the holding body is shaped so that the opening side widens by α degrees with respect to the vertical direction, and the outer peripheral side surface of one metal cover covered by the magnet is shaped so that the opening side is narrowed by α degrees. The fastener for jewelry as claimed in any one of claims 1 to 5 , characterized in that The outer periphery of the magnet covered with the metal cover is configured so that the outer peripheral surface of the metal cover is inclined with respect to the inner peripheral side surface of the recess by β degrees that is smaller than the previous α degree. The fastener for jewelry according to claim 6 . The fastener for a jewelry accessory according to any one of claims 1 to 7 , wherein the pair of holding bodies are formed by press molding a noble metal and have the same shape. 9. A jewelry according to any one of claims 1 to 8 , wherein one fastener body of the fastener for jewelry according to claim 1 is attached to one end and the other fastener body is attached to the other end.

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