JP2017079836A - Jewel collet, method for mounting jewel on collet, and accessory - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a jewel to be reliably mounted on a collet by simple means without requiring a special skill.SOLUTION: A collet 12 on which a jewel 15 is mounted includes a plurality of fixing claws 14 for fixing the jewel 15. Each fixing claw 14 is formed with a groove 16 with which part of the jewel 15 engages, and a guide face 17 provided above the groove 16 for guiding the part of the jewel 15 to the groove 16.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a gem stone base for attaching a gem such as diamond, a method for attaching a gem stone base, and a jewelry.

  Conventionally, jewelry such as diamond, which has been used for jewelry such as finger rings, earrings, and necklaces, is attached to a stone seat fixed to the main body of the jewelry. Conventionally, as shown in FIGS. 6 and 7, for example, as shown in FIGS. 6 and 7, the stone seat 2 including a plurality of fixing claws 3 arranged in an annular shape is fixed to the main body 1 of the accessory, A notch 4 that can be bent inward is provided inside the fixed claw 3 of the stone seat 2, a jewel 5 is inserted into the notch 4, and then bent inward, and the upper end of the fixed nail 3 is bent. The jewel 5 is fixed by the part 3a (Patent Document 1).

Japanese Utility Model Publication No. 50-39264

  In the conventional method for attaching a stone base of a gemstone, a notch 4 that can be bent is provided in a fixed claw 3 of a stone base 2 that is arranged in a ring shape, and a gemstone 5 is inserted into the notch 4. The upper end 3a of the fixed claw 3 is bent inward from the notch 4 to press and fix the jewel, and the small fixed claw 3 needs to be bent manually one by one. It was difficult to raise. Further, in order to ensure a certain quality, it is necessary to fix the jewel 5 by making the bending angles of the plurality of fixed claws 3 uniform, which is an operation requiring skill.

  Therefore, the present invention solves the above-mentioned problems by ensuring that a gemstone can be securely attached to a stone seat by simple means without requiring skill.

  In order to solve the above-described problems, a gem stone base according to the present invention includes a plurality of fixed claws for fixing the gemstone in a stone base for attaching the gemstone, and each of the fixed claws has a part of the gemstone. A groove portion to be fitted, and a guide surface provided above the groove portion for guiding a part of the jewel to the groove portion are formed.

  Further, the method for attaching a gem stone according to the present invention is provided with a groove portion for fitting a part of the gemstone to a plurality of fixed claws provided on the stone seat, and a guide surface for guiding a part of the gemstone to the groove portion. The jewel is pushed down along the guide surface, and the fixed claw is elastically expanded to fit a part of the jewel into the groove.

  The jewelry according to the present invention is a jewelry having a main body part, a stone base fixed to the main body part, and a jewel attached to the stone base, wherein the stone base fixes a plurality of pieces for fixing the jewel. A claw is provided, and each fixed claw is formed with a groove part into which a part of the jewel is fitted, and a guide surface provided above the groove part for guiding a part of the jewel to the groove part.

  According to the jewel stone seat according to the present invention, since the guide surface for guiding to the groove portion is provided on the stone seat, the jewel is pushed down while being guided along the guide surface, and a part of the jewel is guided to the groove portion as it is. Can be fitted.

  Further, according to the method for attaching a gem stone according to the present invention, a part of the gem can be easily fitted into the groove portion of the stone seat by spreading the fixed claw of the stone seat with the gem.

  Moreover, according to the jewelry according to the present invention, the jewelry can be securely attached to the stone seat by simple means, so that the manufacturing cost of the jewelry can be suppressed.

It is a perspective view of the finger ring using the gem stone base concerning the present invention. It is a perspective view of the gem stone seat concerning the present invention. It is a side view of the gem stone seat concerning the present invention. It is the side view which attached the jewel to the gem stone seat which concerns on this invention. It is sectional drawing in the case of attaching a jewelry to the gem stone base which concerns on this invention. It is a side view which shows an example of the conventional jewelry stone seat. It is a principal part enlarged view which shows the state which attached the jewel to the conventional stone seat for jewels.

  Hereinafter, the gemstone seat and jewelry according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 shows a finger ring (ring) as an example of an accessory. In this ring 10, a plurality of stone pedestals 12 of the present invention are arranged in a line along an annular main body 11, and diamonds 15 are attached to each stone pedestal 12. 1 is not limited to the ring 10 shown in FIG. 1, and the stone seat of the present invention can be applied to any type of jewelry that attaches a gemstone such as a diamond to the stone seat. For example, it can be applied to jewelry such as earrings, necklaces, bracelets, and brooches. Is also used. Moreover, although diamond is shown as an example of a jewel in FIG. 1, it is needless to say that it is not limited to diamond as long as it is a jewel that can be attached to a stone seat.

  FIG. 2 to FIG. 4 show a gem stone seat according to an embodiment of the present invention. The stone base 12 includes a cup-shaped base 13 fixed to the main body 11 of the ring 10 by brazing or the like, and a pair of fixing claws 14 extending obliquely upward from the base 13. The pair of fixing claws 14 are arranged on both sides of the pedestal 13 so as to fix the diamond 15 at two locations on both sides, and a pawl lower portion 14b that rises at an inclination angle substantially corresponding to the inclination of the inclination of the pavilion portion 15b of the diamond 15; The claw upper portion 14a bends inward with the boundary between the portion 15b and the crown portion 15a.

  The fixed claw 14 has a claw upper portion 14a and a claw lower portion 14b formed in an elliptical column shape, and a groove portion in which a girdle portion 15c, which is a part of the diamond 15, is fitted in a bent portion between the claw upper portion 14a and the claw lower portion 14b. 16 is formed. The girdle portion 15c is a narrow belt-shaped outer peripheral portion that forms an edge of the boundary between the crown portion 15a and the pavilion portion 15b, but there is no problem in fitting the groove portion 16 even if the thickness is somewhat wide. The groove portion 16 formed in each fixed claw 14 is formed of a V-shaped groove having a V-shaped cut in the inner surface 14c of the fixed claw 14 at the bent portion, and each groove portion 16 of the pair of left and right fixed claws 14 is It is provided so as to face each other. The opening angle θ1 of the groove portion 16 substantially corresponds to an angle obtained by adding the angles θ2 and θ3 of the crown portion 15a and the pavilion portion 15b of the diamond 15, and the girdle portion 15c of the diamond 15 is fitted into the groove portion 16. When combined, the diamond 15 is firmly fixed to the fixing claw 14. Further, as shown in FIG. 4, when the girdle portion 15c of the diamond 15 is fitted into the groove portion 16, at least a part of the inclined surface of the pavilion portion 15b is in contact with the inner side surface 14c of the claw lower portion 14b. Thus, the stability of the diamond 15 at the time of fitting can be increased. The opening angle θ1 of the groove 16 does not always have to be the same as the angle θ1 + θ2, and there is no problem even if the opening angle θ1 is slightly larger.

  A guide surface 17 for guiding the girdle portion 15 c of the diamond 15 to the groove portion 16 is formed on the claw upper portion 14 a of the fixed claw 14. The guide surface 17 includes an inner surface of the claw upper portion 14a formed in a substantially spherical shape, and the inner surface is formed in a curved shape. The guide surface 17 is formed continuously from the tip of the upper side wall 16a of the V-shaped groove of the groove portion 16, and the girdle portion 15c of the diamond 15 is guided and fitted directly into the groove portion 16 from the guide surface 17. It is like that. In this embodiment, the lower wall 16b of the groove 16 is formed on the same surface as the inner surface 14c of the claw lower portion 14b, and the guide is located on the inner side of an extension line 18 extending the same surface upward. A surface 17 is formed to protrude.

  The distance L1 between the guide surfaces 17 provided on the pair of fixed claws 14 is shorter than the distance L2 between the bottom portions 16c of the groove portions 16 formed in the fixed claws 14, respectively. Therefore, the guide surface 17 protrudes inward from the groove 16. In other words, the distance L1 is set slightly shorter than the distance of the diameter R of the diamond 15 fitted into the groove 16 of the pair of fixed claws 14, and when the diamond 15 is placed on the stone seat 12, The pavilion portion 15 b of the diamond 15 hits the guide surface 17.

  Next, a method for attaching the diamond 15 to the stone seat 12 will be described with reference to FIG. First, the stone 12 is brazed to the main body 11 of the ring 10 and then an aging treatment is performed. After the treatment, the diamond 15 is attached to the brazed stone 12. In attaching the diamond 15, first, as shown in FIG. 5, the diamond 15 is inclined obliquely, and the girdle portion 15c of the diamond 15 is fitted into the groove portion 16 of one fixed claw 14 (left side in FIG. 5). In this state, a part of the slope of the pavilion portion 15b of the diamond 15 hits the guide surface 17 of the other fixed claw 14 (right side in FIG. 5). Next, when a force is applied to the diamond 15 and pushed down above the other fixed claw 14 from that state, the guide surface 17 of the fixed claw 14 is pushed by the slope of the pavilion portion 15b, and the fixed claw 14 is elastically deformed outward. As a result, the inclined surface of the pavilion portion 15b slides downward on the guide surface 17 of the fixed claw 14. Then, almost simultaneously with the girdle portion 15c of the diamond 15 getting over the guide surface 17, the girdle portion 15c is fitted into the groove portion 16 of the other fixing claw 14, and the diamond 15 is formed on both sides as shown in FIG. Two places are in a state of being fitted and fixed to the fixing claw 14.

  In this way, by pressing down the diamond 15 while sliding the slope of the pavilion 15 b on the guide surface 17 of the fixed claw 14, the girdle portion 15 c is fitted into the groove 16 of the fixed claw 14 while the diamond 15 is guided by the guide surface 17. Fixed. Therefore, it is not necessary to bend the upper end portion of the fixing claw and fix the diamond as in the prior art, and this is a very simple diamond mounting method. All the remaining diamonds can be fixed in the same manner.

  In the above-described embodiment, the stone base 12 including the pair of left and right fixing claws 14 has been described. However, in the present invention, depending on the size and shape of the gemstone to be attached, a four-claw stone seat for fixing the gemstone at four locations, or one Of course, the present invention is also applied to a stone seat or the like that is provided with groove portions on both sides of a fixed claw of a book to simultaneously fix a plurality of jewels. Moreover, although the said embodiment demonstrated the case where the diamond 15 was attached to the stone seat 12 which had been subjected to the aging treatment, in the present invention, even if the aging treatment is performed after the diamond 15 is attached to the stone seat 12 and the surface polishing treatment is performed. Well, there are cases where no aging treatment is performed.

DESCRIPTION OF SYMBOLS 10 Ring 11 Main part 12 Stone base 13 Base 14 Fixed claw 14a Claw upper part 14b Claw lower part 14c Inner side surface 15 Diamond 15a Crown part 15b Pavilion part 15c Girdle part 16 Groove part 16a Upper side wall 16b Lower side wall 16c Bottom part 17 Guide line 18 Extension line

Claims (7)

In the stone seat for attaching gems,
A plurality of fixing claws for fixing the jewel, each of the fixing claws having a groove portion into which a part of the jewel is fitted, and a guide surface that is provided above the groove portion and guides a part of the jewel to the groove portion. , Is formed a gem stone.   The jewel stone seat according to claim 1, wherein the groove is formed on an inner surface of the fixed claw.   The jewel stone seat according to claim 1, wherein the guide surface has a curved shape.   The jewel stone seat according to any one of claims 1 to 3, wherein the guide surface protrudes inward from an extension line of an inner surface of the fixed claw.   The jewel stone seat according to any one of claims 1 to 4, wherein the groove portion is formed of a V-shaped groove, and the guide surface is continuously provided from a tip of an upper side wall thereof.   A groove part for fitting a part of the jewel to a plurality of fixed claws provided on the stone seat and a guide surface for guiding a part of the jewel to the groove part are provided, the jewel is pushed down along the guide surface, and the fixing is performed. A method for attaching stone jewels that fits a part of a jewel into a groove by elastically expanding the nails. In a jewelry having a main body, a stone base fixed to the main body, and a jewel attached to the stone base,
The stone seat is provided with a plurality of fixing claws for fixing the jewel, and each fixing claw is provided with a groove part into which a part of the jewel is fitted, and is provided above the groove part to guide a part of the jewel to the groove part. And a guide surface for forming the accessory.

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