JP2008228841A - Terminal end fastener for ornament and ornament - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and surely retain and connect a gem at the connecting end of an ornament for which many gems such as pearls are connected with a wire and the end part of the wire. <P>SOLUTION: The through-hole 31 of the wire 5 and a fitting hole 32 for fitting the cylindrical part 10 of end parts (terminal end fastener) 1 of a diameter larger than that are concentrically formed on the gem 3e at the connecting end, a tapered part 52 is formed leaving a prescribed part 51 on the terminal end side at the end part of the wire 5, the end part of the wire 5 passes through the through-hole 31 of the gem 3e and the tapered part 52 is positioned inside the fitting hole 32. Then, when the cylindrical part 10 of the end parts 1 is fitted to the fitting hole 32, the end part of the wire 5 is fitted to the inner peripheral surface 12, the part projecting outwards of a pair of locking pieces 16 is pressurized inwards by the inner wall 32a of the fitting hole 32, and the locking pieces 16 are pushed and bent so as to enter the tapered part 52 of the wire 5 and lock the wire 5. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a jewelry accessory formed by inserting a wire into a jewel such as a pearl and connecting a number of the jewelry, and a terminal fastener for jewelry to prevent the terminal jewel and the terminal end of the wire from coming off and joined to each other, and a necklace using the same And accessories such as bracelets.

Generally, accessories such as necklaces and bracelets are attached to the neck and arms in an endless form, but each end must be connected or separated each time so that it can be done easily and reliably. In order to do this, various connecting tools have been devised.
Many of them are, for example, as shown in Patent Document 1, a pin insertion / removal type connection consisting of a combination of a female member having an insertion hole and a male member having a projection that can be inserted into and removed from the insertion hole. It was a tool. However, in order to attach the connecting tool to a gem at the end of a jewelry such as a necklace, a small connecting ring must be fixed to the gem, which is difficult.
JP-A-10-137016

In particular, in jewelry such as necklaces that are connected in a rosary shape through a wire or string to a jewel such as a pearl, the terminal jewel, the end of the wire or string, and a connecting ring or connecting tool are fixed together. Therefore, it is necessary to prevent the gem from falling out, but there is no member that can reliably do it with good workability.
In addition, it is very troublesome for the person using the accessory to connect and disconnect the accessory every time the accessory such as necklace or bracelet is worn or removed, and the connected state is incomplete. There was also a risk of losing valuable jewelry by detaching the connector without knowing it.
In addition, the appearance of the accessory was also impaired due to the presence of dissimilar connectors between the many connected gems.

  Therefore, in recent years, a shape memory alloy is used for a wire through which a large number of jewels are inserted and connected to each other to form a substantially annular accessory that is somewhat overlapped without connecting both ends. This accessory is worn on the neck and arm with both ends spread by hand, and when it is released, it returns to its original ring shape by restoration to the wire and does not come off the neck or arm inadvertently. Therefore, since it is easy to attach and detach, and a connecting tool is not required, it looks as if it is constituted by only the jewels connected in appearance, and the appearance is improved.

  Conventionally, for example, a method of welding lead to the end portion of the wire has been used in order to prevent the end jewel of the accessory from being attached to the end portion of the wire. However, it has problems in workability and certainty, and lead may cause an allergic reaction in the human body, and it is not preferable to use it for accessories that are directly attached to the human body.

  The present invention has been made to solve these problems, and in an accessory that is connected to a large number of pearls and other jewels by connecting wires, the jewels at the connection ends and the ends of the wires can be easily connected. An object of the present invention is to provide a terminal fastener for jewelry that can be securely attached and prevented from adverse effects such as allergies to the human body, and to provide an accessory that looks good and can be easily attached and detached. To do.

In order to achieve the above-mentioned purpose, the end fastener for jewelry according to the present invention has a cylindrical portion in which an outer peripheral surface is fitted to a jewel such as a pearl and an inner peripheral surface is fitted into an end of a wire penetrating the jewel. A head portion that is integrally provided at one end of the cylindrical portion and is exposed to the outside of the gem is integrally formed of metal.
At least a portion connected to the tubular portion protrudes radially outward from the outer periphery of the tubular portion, and the head portion extends along a circumferential direction of the tubular portion on a part of the peripheral wall of the tubular portion. At least one cantilevered locking piece is formed by the cut and the cut extending in the direction from the both ends along the axial direction toward the open end opposite to the one end provided with the head. ing.
The locking piece is thick so that the outer surface forming a part of the outer peripheral surface of the cylindrical portion protrudes outward in the radial direction from the outer peripheral surface of the other portion of the cylindrical portion. The outer surface is characterized by an inclined surface whose protruding amount decreases from the free end side to the base end side of the locking piece.

It is desirable to form a pair of the locking pieces symmetrically with respect to the axis of the cylindrical portion.
When the head is formed in a hemispherical shape having a maximum diameter at a portion connected to the cylindrical portion, it looks good.
If the metal forming the terminal fastener for jewelry is gold, silver, a gold alloy, or a silver alloy, the metal has a high-class feeling and does not adversely affect the human body such as allergies.

In order to achieve the above-mentioned object, the jewelry according to the present invention comprises the above-described jewelry terminal end fastener, a plurality of jewels, and a wire penetrating the plurality of jewels to be connected in a rosary shape. This is an accessory formed by joining an end portion and a gemstone at a connecting end penetrating the end portion so as to prevent it from being detached by the end fastener.
Then, the connecting end jewel is connected to the through hole having an inner diameter slightly larger than the outer diameter of the wire, and the end surface having a larger diameter than the through hole. A fitting hole for fitting the cylindrical portion of the fastener is formed concentrically.

Further, a frustoconical taper portion having a small diameter is formed on the end portion of the wire while leaving a predetermined portion on the end side, and the end portion of the wire is a through-hole of the jewel in the connecting end. And the taper portion is positioned in the fitting hole.
Further, the tubular portion of the terminal fastener is fitted in the fitting hole of the jewel of the connecting end, and the end portion of the wire is fitted into the inner peripheral surface and protrudes outward of the locking piece. The portion is pressed inward by the inner wall of the fitting hole, the locking piece is pushed and bent so as to enter the taper portion of the wire, and the predetermined portion on the end side is locked.

  When the wire is formed of a shape memory alloy, the accessory is easy to attach and detach and looks good. If the jewel is a pearl, it becomes a pearl necklace or bracelet that is easy to put on and take off and looks good.

The terminal fastener for jewelry according to the present invention has the above-described configuration, and can easily and reliably connect the terminal jewel and the terminal of the wire in the jewelry formed by connecting a number of jewels such as pearls through wires. There is no need to use materials that have adverse effects such as allergies to the human body. Moreover, since the structure is simple and integrally formed, it has sufficient durability and can be made extremely small.
The accessory according to the present invention is an accessory that has a good appearance and is easy to attach and detach, since the terminal jewel and the end of the wire are connected to each other to prevent the jewel from falling off.

Preferred embodiments of the present invention will be specifically described below with reference to the drawings.
[Example of terminal fastener for jewelry]
First, an embodiment of a terminal fastener for jewelry according to the present invention will be described with reference to FIGS.
1 is a front view of the end fitting for jewelry, FIG. 2 is a side view, FIG. 3 is a bottom view, and FIG. 4 is a cross-sectional view taken along line AA of FIG.

  In this embodiment, the end fitting for jewelry is called an end part. In the end part 1, the cylindrical portion 10 and the head portion 20 are integrally formed of metal. The cylindrical part 10 is a cylindrical part, and the outer peripheral surface 11 is fitted to a jewel such as a pearl, and the inner peripheral surface 12 is fitted with an end of a wire penetrating the jewel. The head 20 is a portion that is integrally provided at one end of the tubular portion 10 and is exposed to the outside of the gem, and at least a portion 21 that is connected to the tubular portion 10 is radially outward from the outer periphery of the tubular portion 10. Overhangs.

  Then, as clearly shown in FIG. 2, a notch 14 along the circumferential direction of the cylindrical portion 10 and one end portion provided with a head 20 along the axial direction from both ends thereof, as clearly shown in FIG. At least one cantilevered locking piece 16 is formed by a notch 15 extending partway in the direction toward the opposite open end 10a. In this embodiment, as can be seen from FIGS. 1, 3, and 4, a pair of locking pieces 16 are formed symmetrically with respect to the axis of the cylindrical portion 10. Three or more locking pieces 16 may be formed at equiangular intervals along the circumferential direction of the cylindrical portion 10, but a pair is appropriate because the end part 1 is a small member.

As shown in FIGS. 1 and 4, the locking piece 16 has an outer surface 16 a that forms a part of the outer peripheral surface 11 of the cylindrical portion 10, rather than the outer peripheral surface 11 of the other portion of the cylindrical portion 10. The outer surface 16a is thicker so as to protrude outward in the radial direction, and the protruding amount of the outer surface 16a is from the free end side (upper side in the figure) to the base end side (lower side in the figure). The slope decreases toward the.
When the end part 1 is fitted in the fitting hole of the jewel, the outer surface 16a of the locking piece 16 is pressed against the inner wall of the fitting hole, and the locking piece 16 is pushed and bent to the inner peripheral surface 12. The end of the inserted wire is pinched and locked.
The wall thickness of the locking piece 16 can be increased by additionally attaching the same metal as that forming the end part 1 by welding or the like.

In this embodiment, the head 20 remaining outside the gemstone is formed in a hemispherical shape with the maximum diameter of the portion 21 connected to the cylindrical portion 10, so it matches inconspicuously with a gemstone such as a pearl and touches the skin. Smooth and safe to touch. On the side of the portion 21 connected to the tubular portion 10 of the head portion 20, a wire fitting recess 22 having the same diameter as the inner peripheral surface 12 of the tubular portion 10 is provided.
Any metal may be used as long as the metal forming the end part 1 does not have an adverse effect such as causing an allergic reaction to humans. However, gold, silver, a gold alloy, or a silver alloy can be used. It is good and it can match the jewels and keep the luxury of the accessories. In particular, white gold, which is a gold alloy, is optimal.

  As an example of the size of the end part 1, the length of the cylindrical part 10 is 2.5 mm, the outer diameter is 1.8 mm, the inner diameter is 1 mm, the wall thickness of the peripheral wall is 0.4 mm, and the width of the cuts 14 and 15. 0.15 mm, 1 mm from the opening end 10 a to the base end of the locking piece 16, the length of the locking piece 16 is 0.85 mm, the width is 0.7 mm, and the maximum protrusion of the outer surface 16 a of the locking piece 16 The amount is 0.2 mm, the outer diameter of the head 20 is 3 mm, and the total length of the wire insertion hole including the wire insertion recess 22 is 3 mm. These dimensions can be appropriately changed according to the size of the gem used, the wire diameter, and the like.

[Examples of jewelry]
Next, an embodiment of the accessory according to the present invention will be described with reference to FIGS.
FIG. 8 is a plan view of a bracelet showing the whole of an embodiment of the accessory according to the present invention, in which a large number of jewels 3 such as pearls are connected in a rosary shape through wires that are not visible in the drawing, The jewel 3e and the end of the wire are connected to each other by the end part 1 which is the end fitting for jewelry as described above.

This bracelet uses a wire made of a shape memory alloy, and is formed in an annular shape by overlapping both ends without being connected. Therefore, both ends can be easily attached to and detached from the arm by hand, and when the hand is released, the wire will return to the original ring shape that it has memorized. There is nothing.
The jewel 3e at each connecting end is securely connected to the end of the wire by the end part 1, so there is no risk of falling off the wire, and only a small hemispherical head 20 made of metal such as white gold can be seen. So it's almost inconspicuous and even looks like it's made of jewels only.

A method for connecting the jewel 3e at the connecting end of the accessory and the end of the wire by the end part 1 and the structure thereof will be described with reference to FIGS. Each of these figures is a cross-sectional view similar to FIG.
As shown in FIG. 5, the connecting end jewel 3e shown in FIG. 8 communicates with the through hole 31 having an inner diameter slightly larger than the outer diameter of the wire 5 and the through hole 31 at a predetermined depth from the surface of the jewel 3e. And the fitting hole 32 which fits the cylindrical part 10 of the end part 1 larger diameter than the through-hole 31 is formed concentrically.

On the other hand, a frustoconical taper portion 52 having a small diameter on the end of the predetermined portion 51 is formed at the end of the wire 5 while leaving the predetermined portion 51 on the end side.
The end of the wire 5 is passed through the through hole 31 of the jewel 3e at the end of connection, and the tapered portion 52 is positioned in the fitting hole 32 as shown in FIG. 5, and the end of the wire 5 extends from the surface of the jewel 3e. Slightly protrude.

From this state, as shown in FIG. 6, the cylindrical portion 10 of the end part 1 is inserted and fitted into the fitting hole 32 of the jewel 3 e, and the end portion of the wire 5 is fitted into the inner peripheral surface 12 thereof.
Then, when the head part 20 of the end part 1 is further pushed in, the engaging part 16 of the tubular part 10 slightly expands the vicinity of the entrance of the fitting hole 32 of the gem 3e so that the tubular part 10 is fitted. The hole 32 is inserted deeper into the hole 32. At this time, a portion protruding outward of the outer surface 16a of the locking piece 16 is pressed inward by the reaction force of the inner wall 32a of the fitting hole 32, and the locking is performed. The piece 16 is pushed and bent so as to enter the taper portion 52 of the wire 5, and the predetermined portion 51 on the terminal end side is locked to prevent it from coming off.

  As shown in FIG. 7, in a state where the tubular portion 10 of the end part 1 is completely inserted into the fitting hole 32 of the gem 3 e, the end of the wire 5 is also completely inserted into the end part 1 and The wire is inserted into the wire insertion recess 22. The end part 1 is completely held in the fitting hole 32 by the frictional force generated by the restoring force of the pair of locking pieces 16 and the pressing force of the inner wall 32 of the fitting hole 32 of the gem 3e. Since the locking piece 16 enters the taper portion 52 of the wire 5, the locking piece 1 locks the predetermined portion 51 on the terminal end side of the wire 5 even when a force in the pulling direction is applied to the wire 5 and the gem 3 e. There is no fear of falling out. Further, in this embodiment, the pair of locking pieces 16 are pressed so as to sandwich the taper portion 52 of the wire 5, so that the gem 3e and the end portion of the wire 5 can be more reliably coupled.

  The present invention is not limited to a bracelet, and can be similarly applied to an accessory such as a necklace, brooch, or pendant of a type in which a plurality of jewels are connected by a wire and the connected jewels are secured to the end of the wire. If a shape memory alloy is used for the wire, it can be easily attached and removed, and even a metal other than that can form a tapered part leaving a predetermined portion on the end side. It is only necessary to have a thickness and strength that can be locked by the locking piece of the end part.

  Not only jewelry that is formed in a ring shape or a single line shape as a whole, but it may also be a jewelry item in which a plurality of braids connected to a plurality of jewels are connected radially or in parallel from a ring-shaped or line-shaped portion. . The jewels at the ends of each of the pearl stripes and the ends of the wires can be connected to each other without being noticeable by the end parts according to the present invention.

  In addition, the present invention is suitable for jewelry such as bracelets and necklaces connected with pearls, but is not limited thereto, and can also be applied to jewelry connected with various jewels such as crystals, jade, and jewelry. It is possible to insert a wire and insert an end part into a connected end jewel, such as a cylinder, cube, polygonal column or sphere, long sphere, other deformed shape, or different jewels. For example, the present invention can be applied to jewelry that uses jewels of any material and shape.

[Other Examples of Terminal Stoppers for Trinkets]
Another embodiment of the end stop for jewelry according to the present invention is shown in FIGS. In these drawings, portions corresponding to those in FIGS. 1 to 4 are denoted by the same reference numerals, and description thereof is omitted.
In the end part 1 shown in FIG. 9, a connecting ring 6 is fixed to the apex of the head 20, and a connecting ring 7 fixed to the pearl 8 is connected thereto.
In the end part 1 shown in FIG. 10, the head 20 also has a connecting ring 6 fixed at the apex thereof, and a decorative piece 9 such as a pet is connected thereto via a connecting ring 7. Further, an initial 23 or an emblem may be engraved on the head 20 of the end part 1.

  If such an end part is used for retaining and connecting the end of the wire and the end of the connecting piece of jewelry to which a number of jewels are connected, an accessory such as a pearl 8 or decorative piece 9 can be attached to the end, Personalized accessories with engraved initials and emblems can be easily provided. The shape of the head of the end part itself is not limited to a hemispherical shape, and can be arbitrarily designed.

  Also, if the connection ring is provided on the head of the end part, a hook is attached to the connection ring of the end part at one end as in the conventional case, or the connection ring of the conventional connection tool is attached to the connection ring of the end part at both ends. If a female member and a male member are connected to each other, an accessory such as a necklace of a type that connects both ends can be configured.

  This invention is a type of bracelet, necklace, brooch or pendant of a type in which a large number of various jewels such as pearls, crystals, jade and jewels are connected with wires and the connected end jewels are secured to the end of the wire. Applicable to various accessories. In particular, it is suitable for a jewelry having a self-restoring force using a shape memory alloy for the wire.

It is a front view which shows one Example of the termination | terminus fastener for jewelry by this invention. It is the side view similarly. It is the bottom view similarly. It is sectional drawing which follows the AA line of FIG. It is sectional drawing which shows the state which inserted the edge part of the wire in the through-hole of the jewel of the connection end in one Example for jewelry by this invention. FIG. 6 is a cross-sectional view showing a state in which the end fastener shown in FIG. 4 is inserted from the state shown in FIG. It is sectional drawing which shows the state which made the end fastener fit completely in the fitting hole of the same jewel. It is a top view which shows the whole one Example of the jewelry by this invention. FIG. 6 is a side view showing another embodiment of the end fitting for jewelry according to the present invention, with the top and bottom reversed from FIG. 2. It is a perspective view which shows the further another Example of the termination | terminus fastener for jewelry by this invention.

Explanation of symbols

1: End parts (end fastener for jewelry) 3: Jewel 5e: Jewel at the end of connection 5: Wire 6, 7: Connection ring 8: Pearl 9: Decoration piece 10: Cylindrical part 10a: Open end 11: Outer peripheral surface 12 : Inner peripheral surface 13: Peripheral wall 14, 15: Cut 16: Locking piece 16a: Outer surface (slope)
20: Head 21: Portion connected to cylindrical portion of head 22: Recess for wire insertion 23: Initial 31: Through hole 32: Fitting hole 32a: Inner wall of fitting hole 51: Predetermined portion 52: Tapered part

Claims (7)

The outer peripheral surface is fitted with a jewel such as a pearl, and the inner peripheral surface is fitted into the end of the wire penetrating the jewel, and the one end of the cylindrical portion is provided integrally with the outside of the jewel. The exposed head is integrally formed of metal,
The head has at least a portion connected to the cylindrical portion protruding outward in the radial direction from the outer periphery of the cylindrical portion,
In a part of the peripheral wall of the cylindrical part, a cut along the circumferential direction of the cylindrical part and a direction from the both ends toward the open end opposite to the one end provided with the head along the axial direction At least one cantilevered locking piece is formed by the incision extending halfway,
The locking piece is thick so that the outer surface forming a part of the outer peripheral surface of the cylindrical portion protrudes outward in the radial direction from the outer peripheral surface of the other portion of the cylindrical portion. And the outer end surface is an inclined surface whose protruding amount decreases from the free end side to the base end side of the locking piece.   The terminal fastener for jewelry according to claim 1, wherein a pair of the locking pieces are formed symmetrically with respect to the axis of the cylindrical portion.   3. The terminal fastener for accessory according to claim 1, wherein the head is formed in a hemispherical shape having a maximum diameter at a portion connected to the cylindrical portion.   The said metal is gold | metal | money, silver, a gold alloy, or a silver alloy, The termination | terminus fastener for jewelry as described in any one of Claim 1 to 3 characterized by the above-mentioned. The end fastener for jewelry according to any one of claims 1 to 4, a plurality of jewels, and a wire penetrating the plurality of jewels to be connected in a rosary shape. And a connecting end jewel that has penetrated the end portion, and a jewelry that is connected to the end fastener to prevent it from coming off,
A through hole having an inner diameter slightly larger than the outer diameter of the wire and the end fastener having a larger diameter than the through hole communicated with the through hole at a predetermined depth from the surface of the gem. Are formed concentrically with a fitting hole for fitting the tubular part of
A frustoconical taper portion having a small diameter is formed on the end portion of the wire, leaving a predetermined portion on the terminal end side, and the end portion of the wire extends through the through hole of the jewel of the connecting end. Penetrating and positioning the tapered portion in the fitting hole,
The tubular portion of the terminal fastener is fitted into the fitting hole of the jewel of the connecting end, and the end portion of the wire is fitted into the inner peripheral surface and protrudes outward of the locking piece. The portion is pressed inward by the inner wall of the fitting hole, the locking piece is pushed and bent so as to enter the taper portion of the wire, and the predetermined portion on the end side is locked. Trinkets.   The jewelry according to claim 1, wherein the wire is made of a shape memory alloy. The jewelry according to claim 1 or 2, wherein the jewel is a pearl.

Images