JP2003153710A - Fastener for accessories, accessory and method of manufacturing fastener for accessories - Google Patents

Abstract

(57) [Summary] (Modifications required) [PROBLEMS] To provide a magnet with sufficient protection, high assembling work efficiency, and to reduce adverse effects on electronic devices. In addition, it is difficult to disengage the connection, and it is easy to release the connection with a light force. SOLUTION: This accessory metal fitting 10 is used when attaching / detaching an accessory. A concave portion 13 is provided in one of the pair of holding members 11 and 21, and a magnetic cap 12 formed in a cap shape is arranged in the concave portion 13 to form one of the clamp main bodies 1, and the other holding member 21 has the above-described structure. Recess 1
3 is provided with a recess 23 which is the same as or similar to that of FIG.
A metal body 22 covered with a metal cover 22a is disposed on the other of the metal body 22 and the other metal body 22. The magnetic cap 12 and the metal cover 22a are opposed to each other so that the metal body 22 for both metal fasteners can be used.
Can be combined.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastener for an accessory such as a necklace, a bracelet, a watch band or a waist belt. Regarding the method.

[0002]

2. Description of the Related Art In conventional jewelry such as jewelry with a chain using magnets, a plurality of magnets are opposed to each other in a pair and fixed in the up-down direction, and protrusions or grooves are formed in a holding body to which the magnets are fixed in the left-right direction. However, a method of fixing by this coupling is used (Shinkaihei 3-64015, etc.).

The pair of holders often have different shapes in appearance, and a ring-shaped suspension ring integrally formed with the holders is used to fix the magnets on the surfaces facing each other against rotation. And the like are used (Japanese Patent Laid-Open No. 9-276).
015 and others).

The magnet is generally protected by plating or painting with gold or silver.

[0005]

Bond-type magnets have been used in conventional fasteners for personal accessories that utilize magnets. However, bond magnets have weak mechanical strength, and many defects such as chipping and rusting are observed, and they are not suitable for long-term use. In many cases, the magnet is protected by a plating treatment, a coating treatment, etc., but the strength of the protective film is insufficient, and there is a drawback that rust progresses due to scratches or the like.

Further, when a magnetized magnet is used, in the step of assembling it in the holder, the magnetic poles are embedded while checking the magnetic poles, so that the work is complicated and the workability is remarkably deteriorated.

Further, when a plating process is required after the magnet is embedded in the holder, there is a drawback that the plating process is complicated and therefore expensive.

[0008] Further, in the conventional fastener for an accessory using a magnet, since a non-magnetic material or a noble metal material is mainly used for its holder, there is an advantage that the magnetic force effectively acts on the portion in contact with the body. On the other hand, it has been pointed out that there is a danger that it may adversely affect electric devices and cause noise and the like.

In addition, with respect to a fastener for an accessory that uses a magnet, various methods have been proposed and implemented for assuring the connection, but there are many defects that are difficult to remove because there is no method for facilitating the attachment and detachment.

The present invention has been made in order to solve the above-mentioned problems, and it is sufficient to protect a magnet that generates a coupling force, has high assembly work efficiency, and can reduce adverse effects on electronic equipment. The purpose of the present invention is to provide a fastener and an accessory. In addition, another invention has high assembly work efficiency and can reduce adverse effects on electronic devices,
Moreover, it is an object of the present invention to provide a fastener for an accessory and an accessory that are hard to be disconnected. Further, another object of the present invention is to provide a fastener for accessory and an accessory that has high assembly work efficiency, can reduce adverse effects on electronic devices, and can be easily disconnected. Another invention is
The protection of the magnets that generate binding force is sufficient, the work efficiency of assembly is high, and the adverse effects on electronic devices can be reduced.
An object of the present invention is to provide a method for manufacturing a fastener for an accessory that does not require a complicated plating process.

[0011]

In order to achieve the above-mentioned object, the fastener for metal fittings of the present invention comprises a pair of retaining members for metal fittings which are freely attached and detached in the middle of the jewelry or at both terminals. A recess is provided on one side of the body, a magnetic cap made of a magnetic material formed in a cap shape is arranged in this recess to form one stopper metal body, and the other holding body is provided with a recess identical or similar to the recess. A magnet covered with a metal cover is arranged in the recess to form the other metal fitting body, and the two metal fitting bodies can be joined by making the magnetic cap and the metal cover face each other.

In this metal fitting for the accessory, the magnet is protected by the presence of the metal cover, and cracks and rust are less likely to occur. Moreover, since only one magnet is used instead of a pair of magnets, the work for confirming the magnetic poles is not required, and the work efficiency is high. Furthermore, since the magnetic cap formed in a cap shape prevents leakage of magnetic flux, adverse effects of leakage magnetic flux on electronic devices are reduced.

In addition, the fastener for metal fittings of the present invention is a fastener for metal jewelry that is freely removable by interposing between the ends or both ends of the jewelry, and a recess is provided in one of the pair of holding bodies, and the recess is capped. A magnetic cap made of a magnetic material is formed into one stopper body, and the other holder is provided with a recess that is the same as or similar to the recess, and a magnet or a magnet covered with a metal cover is placed in this recess. The other stopper metal body is arranged, and a part of the magnetic cap is protruded from the one stopper metal body to provide a protruding portion.
The magnet side is arranged so that a recess is formed in the other stopper body, and the protrusion of the magnetic cap can be engaged with this recess.

Since the fastener for the accessory according to this structure uses only one magnet instead of a pair of magnets, the work for confirming the magnetic pole is not required, and the work efficiency is high. Further, since the magnetic cap formed in a cap shape prevents leakage of magnetic flux, adverse effects of leakage magnetic flux on electronic devices are reduced. Furthermore, since the protrusion on the magnetic cap side engages with the recess on the magnet side, the coupling force with respect to the lateral force becomes strong, and it becomes difficult to come off.

According to another aspect of the present invention, in addition to the fastener for an accessory of each of the above inventions, at least a part of a knockout rod for releasing the connection between the two fastener main bodies is arranged in a part of the space of the magnetic cap. I am letting you.

By adding such a knockout rod, when the binding force is desired to be released, the binding force can be easily released and removed. Moreover, since the knockout rod is arranged in the space of the magnetic cap, the size of the knockout rod does not increase as a whole.

Furthermore, another invention is, in addition to the above invention,
By pushing a part of the holding body, the knockout rod covered with the holding body is moved.

According to this structure, one end of the knockout rod is not exposed to the outside, and the shape of the stopper main body is neat and smart. Further, since the knockout rod is operated by pushing a part of the holding body that covers the knockout rod, the pushing operation to the knockout rod is simple and reliable.

According to another invention, in addition to the above invention, a decorative ornament is formed on one end of the knockout rod, the end projecting to the side opposite to the side facing the magnet.

In this fitting for metal fittings, the knockout rod is highly decorative and has a glittering design. As a result, it is possible to provide a fastener for accessory with high added value.

Further, the fastener for metal fittings of the present invention is a fastener for metal accessory which is freely attached and detached by interposing between the ends of the jewelry or both terminals, and a recess is provided in one of the pair of holding bodies, and the recess is capped. A magnetic cap made of a magnetic material is formed into one stopper body, and the other holder is provided with a recess that is the same as or similar to the recess, and a magnet or a magnet covered with a metal cover is placed in this recess. The other stopper metal body is arranged, and at least a part of the knockout rod for releasing the connection between both stopper metal bodies is arranged in a part of the space of the magnetic cap.

Since this fitting for metal fittings uses only one magnet instead of a pair of magnets, the work for confirming the magnetic poles is not necessary and the work efficiency is high. Further, since the magnetic body formed in a cap shape prevents the leakage of magnetic flux, adverse effects of the leakage magnetic flux on electronic devices are reduced. Furthermore, by adding such a knockout rod, when the binding force is desired to be released, the binding force can be easily released and removed. Moreover, since the knockout rod is arranged in the space of the magnetic cap, the size of the knockout rod does not increase as a whole.

According to the accessory of the present invention, one stopper metal body of the accessory fastener according to any one of claims 1 to 5 is attached to one end, and the other stopper metal body is attached to the other end.

In this accessory, the improvement of the stopper, that is, the protection of the magnet for generating the coupling force is sufficient, the work efficiency of the assembly is high, and the magnetic flux leakage has a bad influence on the electronic equipment. By reducing the number, strengthening the binding force against the lateral force, and making it easier to remove the binding by using a knockout rod, it will be a product with higher added value than before.

The manufacturing method of the fastener for the accessory of the present invention is as follows.
After obtaining by press molding a stopper metal body having a recess in the center and a hanging portion for fixing a chain or string so that it protrudes laterally from the body at the end, barrel polishing and plating treatment After that, a magnet covered with a metal cover is fixedly placed with an adhesive in a concave portion of the obtained fastener body to form one fastener body, and a magnetic cap made of a magnetic material formed in a cap shape. Is fixedly placed in the recess of the other fastener body with an adhesive to form the other fastener body.

According to this manufacturing method, since the plating process is performed before the magnet is embedded, a complicated plating process is unnecessary, and the plating process can be performed easily and reliably, so that stable plating process can be performed at low cost. Becomes Further, the metal fittings protect the magnets of the metal fittings made by this manufacturing method, so that cracks and rust are less likely to occur. Further, since only one magnet is used instead of a pair of magnets, the work for confirming the magnetic poles is not required, and the work efficiency is high. Further, since the magnetic body formed in the cap shape prevents the leakage of the magnetic flux, the adverse effect of the leakage magnetic flux on electronic devices is reduced.

[0027]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a fastener for an accessory according to an embodiment of the present invention will be described with reference to the drawings. The metal fittings for the accessory are provided in the middle or both ends of the accessory such as a necklace, a bracelet, a watch band, and a waist belt, and the middle part and both ends are attached and detached.

First, the fitting for metal fitting 10 of the first embodiment will be described with reference to FIGS. 1 to 4. here,
FIG. 1 is a front sectional view of a fastener 10 for accessory, FIG. 2 is a plan view of a holder, and FIG. 3 is a sectional view taken along the line AA of FIG. FIG. 4 is a diagram showing a manufacturing flow of the fastener 10 for accessory.

This accessory fastener 10 is composed of a pair of fastener bodies 1 and 2. Each fastener body 1, 2
Has a hemispherical shape with an outer diameter of about 9.2 mm and a thickness of about 3.5.
It is set to 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 and formed in a cap shape, that is, a cylindrical shape having a bottom.

The holder 11 is made of silver and has a thickness of 1.5 m.
It is produced by stamping from a plate having a width of 25 mm and a width of 25 mm. 2 and 3 when this press molding is performed.
As shown in FIG. 3, a large circular recess 13, a small diameter circular recess 14 having an arcuate cross section provided on the bottom of the recess 13, and a hanging portion 15 for fixing a chain or string-like ornament are simultaneously formed. It

Further, the stamp "SILVER" shown in FIG. 2 is applied by the press molding after the press molding for forming the shape. After that, a circular through hole 16 is formed in the hanging 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 concave portion 13 has a shape in which the opening side expands by α degrees with respect to the vertical direction.
The outer peripheral side surface of the magnetic cap 12 has a shape in which the opening side is compressed by α degrees.

In this embodiment, 2 degrees is adopted as α degrees. By widening the opening side of the concave portion 13 of the holding body 11, the punching work at the time of punching the press becomes easy.
Further, due to the tightness of α degrees, the protruding portion W of the magnetic cap 12 (the portion protruding from the flat surface portion 31 of the fastener body 1 facing the fastener body 2 toward the fastener body 2 side)
Easily engages with the recessed portion Y provided in the fastener main body 2 (the portion of the fastener main body 2 that is recessed from the flat surface portion 41 facing the fastener main body 1 to the side opposite to the fastener main body 1 side).

The stopper main body 2 comprises a half-shaped holding body 21.
And a cylindrical magnet 22 covered with a bottomed cylindrical metal cover 22a. The holder 21 has the same material and shape as the holder 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 arcuate small circular recess 24 formed in the bottom of the recess 23, and a hanging portion 25. . The marking of "SILVER" is also given in the same manner, and the circular through hole 26 is also formed by punching.

After that, the magnet 22 with the metal cover 22a covered in the recess 23 is fitted. The magnet 22 is a bond type magnet, and the metal cover 22a is made of stainless steel which is a kind of magnetic material. Magnet 22 and metal cover 2
Although they are fitted with 2a and are joined together by magnetic force, a light press fit or an adhesive may be used to fix them.

The outer periphery of the magnet 22 covered with the metal cover 22a is designed to have a smaller diameter from the flat surface portion 41 toward the small-diameter circular recess 24. That is, the outer peripheral surface of the metal cover 22a is located at the front of the inner peripheral surface of the recess 23 by α
It is configured to be inclined by β degrees, which is a value smaller than degrees. In this embodiment, β degree is set to 1 degree.
The magnet 22 with the metal cover 22a is assembled in the recess 23 and fixed with an adhesive.

As described above, the magnetic cap 12 of the one stopper metal body 1 projects from the flat surface portion 31, and the magnet 22 covered with the metal cover 22a arranged on the other stopper metal body 2 is It is arranged so as to be recessed from the plane portion 41. When the two stopper metal bodies 1 and 2 are magnetically coupled to each other, the protrusion W and the recessed portion Y are engaged with each other (in this embodiment, the outer peripheral side surface of the recessed portion Y and the outer peripheral side surface of the protruding portion W are engaged). Due to a slight gap between the two and the two parts are in contact with each other at some parts)
Is strongly coupled, so that the coupling cannot be easily broken even if a force in the same direction as the plane of the plane portions 31 and 41 is strongly applied.

Further, due to the magnetic coupling between the magnet 22 and the magnetic cap 12, the two metal fastener bodies 1 and 2 have a flat surface portion 3.
Even if a releasing force in the vertical direction is applied to the planes of 1 and 41, they are not easily detached.

Further, due to the presence of the metal cover 22a,
The magnet 22 is protected and cracks and rust of the magnet 22 are less likely to occur. Further, since the magnet 22 is arranged only on the side of the fastener main body 2, the work for confirming the magnetic pole is not required, and the work efficiency is high. Further, the cap-shaped magnetic cap 12 prevents the magnetic flux from the magnet 22 from leaking to the outside. Moreover, since it has a cap shape, a large internal space can be secured, and an increase in the weight of the fastener main body 1 can be prevented.

As the magnet 22 in this embodiment, a bond magnet is used as described above. Among bond type magnets, especially samarium / cobalt type,
It is desirable in consideration of size and strength of magnetic force. In addition, the metal cover 22a that covers the magnet 22 is important not only in plate thickness but also in weather resistance. Therefore, the plate thickness is 0.15 mm
The following stainless steels are preferred. In addition, a noble metal material may be used, and further, a nonmetal material may be used as long as the plate thickness can be controlled to a predetermined value.

Conventionally, the magnets used have been subjected to plating treatment or coating treatment, but there are many defects that chipping, scraping, etc. occur at the time of embedding and that rust occurs from that portion. However, in this embodiment, the magnet 2
No special treatment is required for No. 2, and since the magnet 22 is protected by the metal cover 22a, chipping and scraping are hardly seen.

The magnetic cap 12 made of a magnetic material used in this embodiment requires a thickness sufficient to absorb magnetic force. In addition, the cap shape has an effect of preventing magnetic force leakage to the periphery as described above.
In this embodiment, as the magnetic 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. Further, in consideration of improving weather resistance, ferritic stainless steel may be used.

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

First, a silver material having a thickness of 1.5 mm and a width of 2
A 5 mm silver plate is received and prepared (step S10).
1). Next, the raw material is removed to determine the approximate outer diameter (step S102). After that, the first press molding is performed to form the concave portion 1 that becomes the outer diameter and the inner diameter of the holding bodies 11 and 21.
3, 23 are formed into a predetermined shape (step S10).
3). Next, by the second press molding, the holding body 11,
The recesses 13 and 23 and the small-diameter circular recesses 14 and 24 of 12 are finished with higher accuracy and the marking of "SILVER" is also performed (step S104).

Next, the holders 11 and 21 are punched out according to their shapes (step S105). After that, the guide holes are punched to form the through holes 16 and 26 in the hanging portions 15 and 25 (step S106). Next, barrel cutting is performed on the punched cross section by the first barrel processing (step S1).
07). Thereafter, if necessary, a visual inspection for the presence of scratches, deformation, rust, etc. is carried out (step S201), and a silver brazing material as a paste is pierced through the through holes 1 of the parts 15, 25.
It is applied to the inner surface of 6, 26 to fix an oval can (an oval metal ring for attaching chains, strings, etc.) (step S
108).

Thereafter, if necessary, a functional test for testing the fixing strength of the oval can is performed (step S20).
2). Next, the outer surfaces of the holders 11 and 21 are mirror-finished by the gloss dry barrel which is the second barrel treatment (step S109). Then, if necessary, an intermediate inspection is performed to inspect the appearance and sagging (step S
203).

Next, a plating process is performed to make the holders 11 and 2
Rhodium is applied to the entire surface of 1 (step S110).
Thereafter, if necessary, the same visual inspection as in step S201 is performed (step S204). Next, the cap-shaped magnetic cap 12 already formed (step S30
1) and the metal cover 22a is formed (step S3).
02) After that, the magnet 22 is assembled (step S30).
3) The thing is attached to the holders 11 and 21 (step S111). Then, by drying (step S1
In 12), the fixing strength by the adhesive is improved. In addition,
Caulking may be performed instead of or together with the drying.

Finally, a completion inspection, which is a visual inspection for visually checking for the presence of rust or the like, is performed (step S113). By the above, the fastener 10 for the accessory, which is composed of the pair of fastener bodies 1 and 2, is completed. After the completion inspection (step S113), a function inspection such as a magnetic force inspection, an appearance inspection such as step S201, and a shipping inspection 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, the complicated plating process is not performed and the barrel process is facilitated.

Next, the fastener 50 for accessory according to the second embodiment will be described with reference to FIGS. 5 and 6. The same members as those shown in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted or simplified.

This accessory metal fitting 50 is basically the same as the accessory metal fitting 10 except for the shapes of the recesses 13 and 23 provided in the holders 11 and 21.
It is the shape of the magnetic cap 12 and the metal cover 22a that fit into the recesses 13 and 23. It is also different in that the oval can 51 on the oval is shown in the drawing.

Each holder 1 of the metal fitting 50 for the accessory
The recesses 13 and 23 provided in the recesses 1 and 21 are not circular recesses but are gourd-shaped as shown in FIG.
The part on the line connecting 5, 5 and the center has bulging parts 52, 52 bulging outward. In accordance with this shape, the magnetic cap 12 is also not a bottomed circular shape but a bottomed cylindrical shape whose bottom shape is the same as the shape of the outline of the recess 13 shown in FIG. With 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 22a also has 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. With such a shape, the metal cover 22a fitted in the recess 23 does not rotate relative to the holding body 21 in the circumferential direction. The magnet 22 has a columnar shape as in the first embodiment.

Next, a fastener 60 for an accessory according to the third embodiment will be described with reference to FIGS. 7 and 8. In addition, in the basic structure, this accessory fitting metal fitting 60 has the accessory fitting fitting metal fitting 10 of the first embodiment.
The same members as or members similar to those of the first embodiment are designated by the same reference numerals, and the description thereof will be omitted or simplified.

This accessory fitting 60 is different from the accessory fitting 10 of the first embodiment in the following five points.

First, the holders 11 and 21 are changed from hemispherical ones to substantially cylindrical ones (the maximum diameter portion is 5 mm diameter). Secondly, the knockout rod 61 (this function will be described later) is arranged in the space S which is the internal space of the magnetic cap 12. Third
That is, the side of the magnet 22 covered with the metal cover 22a protrudes from the flat portion 41 to form a protrusion W, while the depression Y is formed on the side on which the magnetic cap 12 is arranged.

Fourthly, there is no hanging portion on the holders 11 and 21 of the metal fitting 60 for the accessory, and the ring-shaped round cans 62 and 62 to which chains are attached are provided on the side surfaces of the holders 11 and 21 with silver. It is the point that is brazed. Fifth, the knock-out rod 61 moves in and out of the bottom of the magnetic cap 12, and a circular insertion hole 63 is provided for the protrusion.

As with the fasteners 10 and 50 for the accessory of the first and second embodiments, the fastener 60 for the accessory basically has a pair of holders 11 and 21 having the same external appearance. ing. The knock-out rod 61 has a semi-spherical semi-circular sphere portion 64 at its upper end, and the other end is pushed by pushing the semi-circular sphere portion 64 with a finger.
hit a. By pressing the knockout rod 61 while blocking the movement of the fastener body 1 with a hand, finger, etc., the fastener body 2 is released from the connection with the fastener body 1 and both are disengaged.

The knockout rod 61 has a larger diameter than the locking portion 66, that is, the circular insertion hole 63 or the guide hole 65 shown in the upper part of FIG. 7, so that the knockout rod 61 does not come off from the stopper main body 1. A circular locking portion 66 is provided. Further, at the upper end portion of the holding body 11 in FIG. 7, a circular depression recess 67 is formed so that the knockout rod 61 can be pushed in by a finger. Further, in this embodiment, a sponge material 68 is installed between the bottom portion of the magnetic cap 12 and the locking portion 66 to form the space S, and the two stopper metal fitting bodies 1 and 2 are provided.
When not engaged, knockout rod 61
Is designed so as not to protrude so much from the circular insertion hole 63. Further, if a magnetic material is used as the material of the knockout rod 61, the strength of the magnetic force can be concentrated in the central portion, and the coupling force between the two metal stopper bodies 1 and 2 can be increased.

Further, in this embodiment, the recessed portion Y
Is made deeper, while the protrusion W is made higher,
The engaging force with respect to the force in the direction parallel to the plane of 41 is strengthened. In the conventional method, the mechanical strength of the magnet is weak and the magnet is broken or chipped so that the side surface of the magnet cannot be used. However, in the present embodiment, the metal cover 22a is used for the magnet 22.
The side surface of the magnet 22 can be fully utilized since it is covered so as to cover.

Further, the knockout rod 6 is attached to the stopper main body 1.
By installing 1, it has become possible to easily uncouple even if the engaging force of the magnet 22 is sufficiently strong,
Even if the lateral coupling force shown in FIG. 7 (engagement force in the direction parallel to the plane portions 31 and 41) is increased (the engagement depth is increased), the detachment becomes easy. That is, the binding force in both the vertical direction and the horizontal direction in FIG. 7 can be strengthened, while the uncoupling can be easily performed with one hand, and convenience can be improved.

In the third embodiment, the metal cover 2
By exposing 2a and the magnet 22 from the holding body 21, it becomes easy to clean dust, dust, and the like attached due to magnetism. Further, the thickness (length) of the magnet 22 can be increased, the magnetic force can be increased, and the coupling becomes strong. Moreover, the metal cover 22a allows the magnet 22
It is possible to reinforce the bending strength (breaking strength) of
It is possible to secure tensile strength to the left and right.

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

This accessory fastener 70 differs from the accessory fastener 10 of the first embodiment mainly in the following five points.

The first difference is that the holders 11 and 21 in the first embodiment are hemispherical, whereas the holders 11 and 21 in the fourth embodiment are circular with a bottom. That is the point. The holders 11 and 21 of the fourth embodiment are
It is a thin plate and is formed by drawing rather than pressing. Then, the circular mountain-shaped central portion 71 of the holding body 11 is pushed so that it can be deformed downward. The material of the holders 11 and 21 of the fourth embodiment is nickel silver or gold alloy (K18) material, and the spring property is secured.
The plate thickness of the holding bodies 11 and 21 is preferably about 0.25 to 0.40 mm.

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

The third difference lies in the configuration in which the opposing portions of the two fastener bodies 1 and 2 come in and out. In the first embodiment, the magnetic cap 12 projects from the flat surface portion 31,
While the magnet 22 with the metal cover 22a has a recessed shape with respect to the flat surface portion 41, the fourth embodiment has a configuration in which the magnet 22 alternately goes in and out.

That is, a pair of holders 11 and 21
The ring-shaped magnet 22 protected by the metal cover 22a is formed on the other holding body 21 of
A part of a is squeezed into a concave shape to form a molding recess Y1. A magnetic cap 12 is attached to one of the holding bodies 11 so as to face the concave recessed portion Y1 of the metal cover 22a and to form a protruding portion W1 that is convex so as to enter the recessed portion Y1. A circular insertion hole 63 is provided in a part of the magnetic cap 12 so that the knockout rod 61 is built therein.

Further, the ring-shaped magnet 22, to be precise,
The tip of the magnet 22 with the metal cover 22a is a second protruding portion W2 protruding toward the one stopper metal body 1 side, and the magnetic cap 12 is recessed inward at the portion where the protruding portion W2 faces. A second recess Y2 is provided.
Thus, the protrusion W1 of the magnetic cap 12 is provided at the center.
And a recess Y1 of the metal cover 22a, and a protrusion W2 of the metal cover 22a and the magnet 22 and a recess Y2 of the magnetic cap 12 are formed on the outer peripheral portion, respectively, so that the recesses and protrusions are intricate. With this configuration, the bonding strength in the lateral direction of FIG. 9 is strengthened and stabilized.

The fourth difference is the structure of the magnet 22.
In each of the above-described embodiments, the magnet 22 has a cylindrical shape, but the magnet 22 in the fourth embodiment is similar to that shown in FIG.
As shown in FIG. 5, it has a ring shape, and a space S1 is formed in the center. This space S1 has the effect of making a structure in which the facing surfaces are complicated as described above, and has the effect of reducing the overall thickness and reducing the weight.

The fifth difference is the structure of the magnetic cap 12. In the fourth embodiment, similarly to the third embodiment, a circular insertion hole 63 is provided in the bottom of the magnetic cap 12 for allowing the knockout rod 61 to move in and out and to be protruded. Shaped protrusion W1
Is provided, which is different from the first embodiment.

In this accessory fastener 70, the knockout rod 61 is in contact with the recess Y1 which is the recess of the metal cover 22a when the fastener bodies 1 and 2 are joined, and in the central portion 71 of the holder 11. It is set to the length that touches the inside. When the engagement (coupling) is released, the holding body 11
9 is pushed down, the knockout rod 61 is lowered in FIG. 9, and the stopper main body 2 is pushed down to release the connection. In the case of this configuration, in addition to being able to release the connection by pushing the central portion 71 while holding the fastener main body 1 with a hand or the like, the other fastener main body 2 is pressed against a human body or the like. The connection can also be easily released by pushing the central portion 71 while keeping it stationary.

As described above, the fitting 70 for the accessory can be flattened and reduced in weight, and can have a strong coupling force, and the coupling can be easily released. As a material of the holders 11 and 21, a noble metal is desirable, and thus weight reduction is a great advantage. Also, it is possible to reduce the strength by making it thinner,
Since the rib shape is added to the metal cover 22a and the magnetic cap 12 and the coupling portion is a double bond, the coupling strength is greatly enhanced. Note that the magnet 22 may not have a ring shape and may have a concave portion that does not penetrate in the center.

Next, a fastener 80 for an accessory according to the fifth embodiment will be described with reference to FIGS. 11 and 12. In addition, in the basic configuration, this accessory fitting metal fitting 80 is the same as the accessory fitting metal fitting 10 of the first embodiment, and is the same as or similar to the members shown in the first and third embodiments. Are denoted by the same reference numerals, and the description thereof will be omitted or simplified.

The feature of the accessory fitting 80 is as follows. First, at the tip of the knockout rod 61,
By forming the ornament 81 which is a part of the design of the holders 11 and 21 and serves as a decorative ornament, it is possible to provide the accessory metal fitting 80 having an increased added value.

The second feature is that the coupling mechanism is unitized. This unitization has the following two effects. That is, the holders 11 and 21 and the coupling mechanism (the magnet 2
2, the metal cover 22a, the anti-magnetic cap 82, the magnetic cap 12, the anti-magnetic cap 82, and the knockout rod 61) are separated to make it possible to give the holders 11 and 21 a variety of external designs. Variety can be enhanced. Further, standardization is achieved by unitizing the coupling mechanism, and the manufacturing cost is reduced.

The third feature is that the noise due to the magnetic wave can be further reduced by arranging the two magnetically resistant caps 82, 82 made of a magnetic material and having the same shape.

This accessory fitting metal fitting 80 is provided on one holding body 11 of a pair of holding bodies 11 and 21 having different shapes.
The magnetic cap 12 and the knockout rod 61 fitted in the antimagnetic cap 82 are formed. In addition, the other holding body 21 is formed with a magnet 22 covered with a metal cover 22a fitted in a magnetic-proof cap 82.

Further, the holder 11 and the anti-magnetic cap 8
A decorative metal fitting 61b that penetrates a part of 2 and becomes a part of the knockout rod 61 is formed so as to engage with an internal knockout portion 61a that constitutes another part of the knockout rod 61. Then, the ornament 81 such as a pearl is formed on the tip portion of the ornamental metal fitting 61b. Note that the two anti-magnetic caps 82, 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. Also,
The magnetic-resistant caps 82, 82 are attached to the holders 11, after the built-in items such as the magnet 22 and the magnetic cap 12 are attached.
It is fixed at 21.

The holders 11 and 21 are mainly made of a noble metal material by the lost wax method (casting method) or the like. The hanging parts 15 and 25 are attached to the holding bodies 11 and 25 by brazing or the like.
It is fixed at 1. The magnetic-proof caps 82 and 82 are the holder 1.
It is fixed to 1, 21 by brazing or welding. In this state, the necessary surface treatment (plating, etc.) is performed to adjust the appearance.

The magnetic cap 12 containing the internal knockout portion 61a of the knockout rod 61 is fitted into one of the pair of holding bodies 11 and fixed by adhesion. The other holder 2
The magnet 22 protected by the metal cover 22a is fitted into 1 and fixed by adhesion. The decorative metal fitting 61b is the holder 1.
1 and the anti-magnetic cap 82 are inserted through the holes so as to be coupled with the internal knockout portion 61a and fixed with an adhesive screw.
A decorative object 81 such as a pearl is adhered and fixed to the tip of the decorative metal fitting 61b to complete the process.

If necessary, the knockout rod 61 and the ornament 81 may be omitted. Further, the magnetic-proof caps 82, 82 are preferably magnetically attracting metals, and in this embodiment, ferritic stainless steel that can be easily brazed or welded to the holding bodies 11, 21 is used. Further, since the magnetic caps 82 and 82 also have a coupling function, the plate thickness is 0.2 in consideration of mechanical strength, weather resistance and the like.
It is preferable to use a material having a size of not less than mm that can be easily pressed.

As shown in FIG. 12, in the retaining bracket 80 for accessory according to the fifth embodiment, both the holding bodies 11 and 21 have a rhombic plan view, and the magnetic-resistant caps 82 and
82 are both the concave portions 13 and 2 of the holding body of the second embodiment.
The shape is similar to that of No. 3, and the magnetic cap 12 and the metal cover 22a to be fitted are prevented from rotating.

Next, a fitting 90 for accessory according to the sixth embodiment will be described with reference to FIG. In addition, the fastener 90 for accessory is the same as the fastener 10 for accessory of the first embodiment in the basic configuration.
Members that are the same as or similar to the members shown in the embodiment are given the same reference numerals, and description thereof will be omitted or simplified.

The feature of this accessory fitting 90 is that a washer 91 and a magnet 92 are arranged on the holder 11. That is, the magnet 92 with the metal cover 92a is also arranged on the holding body 11, whereby the coupling force can be improved and the magnetic force can be retained for a long time. Also, adjacent to the magnet 92,
In addition, a washer 91 made of a magnetic material is arranged on the back side of the magnet 92 to enable concentration of magnetic flux and reduction of leakage magnetic flux.

In the fastener 90 for accessory according to the sixth embodiment, both the washer 91 and the magnet 92 with the metal cover 92a are cylindrical as shown in FIG. 61 are available. However, any one or more of the metal cover 92a, the magnet 92, and the washer 91 may be formed in a disc shape instead of the cylindrical shape. Further, in this embodiment, the depth t1 of the recess Y is half the thickness t2 of the washer 91, and the magnet 92
The thickness t3 of the portion not in the recess Y is
Is the same as the thickness t2. Therefore, the coupling force against the lateral force is strong, and the magnetic flux leakage prevention force is also strong. The relationship between t1, t2, and t3 is not 1: 2: 2 but 1: 1.5 to 2.5: as described above.
When it is set to 1.5 to 2.5, substantially the same effect can be obtained.

Each of the above-described embodiments is an example of a preferred embodiment of the present invention, but various modifications can be made without departing from the scope of the present invention. For example, 1st to 4th
In the sixth embodiment, the holders 11 and 21 have the same shape to facilitate the manufacturing and reduce the manufacturing cost. However, the holders 11 and 21 are different from those in the fifth embodiment. The holders 11 and 21 may be formed in different shapes by forming different shapes having different sizes, by making the recesses 13 and 23 similar, or by making the same size and shape but different decorations.

In each embodiment, the magnet 22 is covered with the metal cover 22a made of a magnetic material. However, a nonmagnetic metal cover made of aluminum or the like or a nonmagnetic material cover made of resin or the like is used. You may make it cover. Moreover,
A magnet material that does not rust may be used, and a coating film or a plating film may be applied instead of the cover, or a magnet that does not apply anything may be used depending on the application. Further, a magnet may be arranged at a portion where the sponge material 68 is arranged to improve magnetic force.

[0089]

According to the present invention, it is possible to obtain a metal fitting and a metal fitting for an accessory that can sufficiently protect a magnet that generates a binding force, have high assembly work efficiency, and can reduce adverse effects on electronic equipment. . Further, according to another invention, it is possible to obtain a fastener for personal accessories and a personal accessory that have high assembly work efficiency, can reduce adverse effects on electronic devices, and are resistant to disconnection.

Further, according to another aspect of the invention, it is possible to obtain a fitting for an accessory and an accessory that have high assembly work efficiency, can reduce adverse effects on electronic equipment, and can be easily disconnected. According to another aspect of the present invention, a fastener for an accessory that sufficiently protects a magnet that generates a binding force, has high assembly work efficiency, can reduce adverse effects on electronic devices, and does not require a complicated plating process. Can be obtained.

[Brief description of drawings]

FIG. 1 is a front cross-sectional view of a fastener for an accessory according to a first embodiment of the present invention.

FIG. 2 is a plan view of a holding body that is a component of the accessory fastener shown in FIG.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a diagram showing a flow of a manufacturing process of the fastener for accessory shown in FIG. 1.

FIG. 5 is a front cross-sectional view of a fastener for an accessory according to a second embodiment of the present invention.

FIG. 6 is a plan view of a holding body that is a component of the accessory fastener shown in FIG.

FIG. 7 is a front cross-sectional view of a fastener for accessory according to a third embodiment of the present invention.

FIG. 8 is a plan view of the accessory fastener shown in FIG. 7.

FIG. 9 is a front cross-sectional view of a fastener for accessory according to a fourth embodiment of the present invention.

FIG. 10 is a plan view of the fastener for accessory shown in FIG. 9.

FIG. 11 is a front cross-sectional view of a fastener for an accessory according to a fifth embodiment of the present invention, which is a cross-sectional view taken along the line AA of FIG.

12 is a plan view of the fastener for accessory shown in FIG. 11. FIG.

FIG. 13 is a front cross-sectional view of a fastener for accessory according to a sixth embodiment of the present invention.

[Explanation of symbols]

1 One stopper metal body 2 Other stopper metal body 10 Metal fittings for jewelry 11 One holder 12 Magnetic cap 13 recess 14 Small diameter circular recess 15 Suspension section 16 through holes 21 The other holder 22 magnets 22a metal cover 23 recess 24 Small diameter circular recess 25 hanging part 26 through holes 61 Knockout stick 81 Ornaments (decorative ornaments) W, W1 protrusion Y, Y1 recess

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yoichi Kodaira             21-8 Shiroyama, Chino City, Nagano Prefecture F term (reference) 3B114 AA01 AA21 CC08 EA00 EB00                       JB00

Claims (8)

[Claims] 1. A fastener for an accessory, which is freely attached and detached by interposing the middle or both ends of the accessory, wherein one of a pair of holding bodies is provided with a recess, and the recess is formed of a magnetic material made of a magnetic material. A body cap is arranged to make one of the fastener bodies, and the other holding body is provided with a recess that is the same as or similar to the above-mentioned recess, and a magnet covered with a metal cover is placed in this recess to make the other fastener body. A fastener for an accessory, characterized in that the fastener body can be joined by facing the magnetic cap and the metal cover. 2. A fastener for an accessory, which is freely removable by interposing between the ends or both ends of the accessory, wherein one of a pair of holding bodies is provided with a recess, and the recess is formed of a magnetic material made of a magnetic material. A body cap is arranged to make one stopper body main body, and the other holding body is provided with a recessed portion which is the same as or similar to the above recessed portion, and a magnet or a magnet covered with a metal cover is disposed in this recessed portion and the other fastener metal body is disposed A part of the magnetic cap is projected from one stopper metal body to provide a protrusion, and the magnet side is arranged so as to form a recess in the other stopper metal body, and the magnetic body is disposed in the recess. A fastener for an accessory, wherein the protrusion of the cap is configured to be engageable. 3. The fastener for an accessory according to claim 1, wherein at least a part of a knockout rod for releasing the connection between the two stopper main bodies is arranged in a part of the space of the magnetic cap. A metal fitting for metal fittings. 4. The fastener for accessories according to claim 3, wherein the knockout rod covered with the holder is moved by pushing a part of the holder. 5. The ornamental fastener according to claim 3, wherein a decorative ornament is formed at one end of the knockout rod, the end projecting to the side opposite to the side facing the magnet. A characteristic metal fitting for jewelry. 6. A fastener for an accessory, which is freely removable by interposing between the ends or both ends of the accessory, wherein one of a pair of holders is provided with a recess, and the recess is formed of a magnetic material made of a magnetic material. A body cap is arranged to make one stopper body main body, and the other holding body is provided with a recessed portion which is the same as or similar to the above recessed portion, and a magnet or a magnet covered with a metal cover is disposed in this recessed portion and the other fastener metal body is disposed And, at least a part of a knockout rod for disengaging the connection between the both fastening metal fitting bodies is arranged in a part of the space of the magnetic cap, and the fastening fitting for accessory is characterized in that. 7. An accessory according to any one of claims 1 to 5, wherein one stopper body of the accessory fastener is attached to one end and the other stopper body is attached to the other end. 8. A press fitting main body having a recess at the center and a hanging portion for fixing a chain or a string at an end so as to project laterally from the main body is obtained by press molding,
After barrel polishing and plating, the magnet covered with a metal cover is fixedly placed with an adhesive in the recess of a part of the obtained stopper metal body to form one stopper metal body, which is formed into a cap shape. A method of manufacturing a fastener for an accessory, wherein the formed magnetic cap made of a magnetic material is fixedly arranged in the recess of the other fastener main body with an adhesive to form the other fastener main body.