EP4307957A1 - Gemme a sertir sur une piece de joaillerie - Google Patents
Gemme a sertir sur une piece de joaillerieInfo
- Publication number
- EP4307957A1 EP4307957A1 EP22715001.8A EP22715001A EP4307957A1 EP 4307957 A1 EP4307957 A1 EP 4307957A1 EP 22715001 A EP22715001 A EP 22715001A EP 4307957 A1 EP4307957 A1 EP 4307957A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- luminescent material
- gem
- peripheral edge
- yoke
- luminescent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C17/00—Gems or the like
- A44C17/005—Gems provided with grooves or notches, e.g. for setting
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C15/00—Other forms of jewellery
- A44C15/0015—Illuminated or sound-producing jewellery
Definitions
- TITLE Gem to be set on a piece of jewelery
- the present invention relates generally to a gem or a stone to be set on a piece of jewelry.
- the invention relates to gems or stones to be set on a piece of jewelry and which may have a certain transparency.
- Such gems are frequently used in jewelry, but they can also be used to decorate timepieces, so that in the present application, the term piece of jewelry can refer just as well to a piece of jewelry as to to a watch, which may include gems set on the bracelet, on the buckle, on an external face of the case, on the bezel or even on parts of the watch located under the crystal such as a dial, a plate or a part of the watch movement.
- An object of the present invention is to respond to the drawbacks of the prior art mentioned above and in particular, first of all, to propose a gem to be set on a piece of jewelry, which comprises a luminescent material, without affecting visual appearance or the ability to mount multiple gems in a tight space.
- a first aspect of the invention relates to a gem to be set on a piece of jewelry, comprising:
- yoke - a peripheral edge, forming for example a girdle or a leaf, separating the yoke from the table and/or the crown,
- the hollow part housing the luminescent material is arranged:
- the gem according to the above implementation has a recessed part (a hole, a recess, a cavity, etc.) which receives the luminescent material, and which is located at the level of the cylinder head, and in its peripheral part.
- the recessed part provided with the luminescent material is facing the crown and/or not facing the table (in an axial direction or normal to the table). Consequently, this recessed part provided with the luminescent material is not directly visible, because it is located under the peripheral inclined part of the visible portion of the gem.
- one aspect of the invention relates to a gem to be set on a piece of jewelry, comprising:
- peripheral edge forming for example a girdle or a leaf, separating the yoke from part of the gem arranged to be visible to a wearer of the piece of jewelry,
- the hollow part housing the luminescent material is arranged in a peripheral zone of the yoke located at a transverse distance from the peripheral edge of the gem, the transverse distance being less than 30% of an outer dimension of the peripheral edge, and preferably the transverse distance being less than 20% of the outer dimension of the peripheral edge.
- the gem according to the above implementation has a recessed part (a hole, a recess, a cavity, etc.) which receives the luminescent material, and which is located at the level of the cylinder head, and in its outer peripheral part, which is traditionally under a rounded, sloping, chamfered edge of the upper, outer and visible part of the gem. Consequently, and due to the phenomena of refraction and reflection at the level of the inclined peripheral walls of the upper, external and visible portion, the recessed part provided with the luminescent material is hardly or not visible.
- the hollow part provided with the luminescent material is arranged close to the edge, but always under the visible part, in the cylinder head, and at a distance from the peripheral edge of less than 30% or 20% the external dimension of the peripheral edge.
- External dimension of the peripheral edge is understood to mean the overall dimension in a plane transverse or normal to the axis of the cylinder head.
- the outer dimension of the peripheral edge is the dimension of the gem when viewed along its main axis once set.
- the outer dimension of the peripheral edge is the overall dimension in a plane normal to the table.
- the outer dimension of the peripheral edge is the length or width of the rectangle, depending on which side the recessed part is located near. If the gem has a circular shape, then the outer dimension of the peripheral edge is the diameter of the gem.
- the outer dimension of the peripheral edge is the distance between two opposite sides of the gem (in the case of an even number of sides) or the distance between an opposite vertex and side of the gem (in the case of an odd number of sides).
- the luminescent material is photoluminescent, for example fluorescent or phosphorescent.
- Light-generating materials can be provided according to one or other of the above modes, or a mixture of the two or more light-generating materials according to one and/or other of the above modes. .
- a gemstone is, without limitation, a fine, precious or ornamental stone, or any very hard or colored material, natural or synthetic, and having the appearance of these jewels and used as ornament.
- the gem can be a diamond, a ruby, a sapphire, a ruby, an emerald, quartz, an amethyst, jade, etc. which are natural stones. Synthetic or so-called synthetic stones can also be provided. Preferably transparent or translucent gems can be provided. Finally, we can provide amber or copal.
- the cylinder head has a cylinder head depth
- the recessed part housing the luminescent material is arranged at a axial distance from the peripheral edge
- the axial distance is within a range of 5% to 75% of the yoke depth, preferably the axial distance is within a range of 5% to 50% of the yoke depth , and very preferably, the axial distance is within a range from 10% to 25% of the cylinder head depth.
- the recessed part is very close to the peripheral edge (girdle or laminate), so that the user will have difficulty in distinguishing the recessed part, and the illumination provided by the luminescent material will seem mysterious because in daylight, the hollow part, and therefore the luminescent material, will be confused with the peripheral edge or hidden by the effects of refraction and multiple reflections.
- the axial distance is constant along the outer edge.
- the recessed part partially receives the luminescent material, so as to present at least one free attachment portion of luminescent material and available for crimping the gem on the piece of jewelry.
- the hollow part which receives the luminescent material also has a free part (that is to say that the hollow part is not completely filled or filled with the luminescent material), so that this free part can form an attachment portion to allow crimping, which provides a little or no visible crimping.
- the visual effect is not affected because the crimping is done on the attachment portion which is devoid of luminescent material. Scratches, chips, holes are therefore avoided. With one and the same recessed part, it is possible to provide a particular luminous effect, and to allow crimping, and these two functions are little or not visible to the user.
- the gem according to the invention can be crimped by means of a conventional crimping technique (claw crimp, closed crimp, etc.).
- the luminescent material is arranged asymmetrically with respect to the free attachment portion of luminescent material. The luminescent material can then be used to provide specific effects. It is also possible to provide for mounting under a light which excites the luminescent material to perform the crimping of the gem with a particular orientation or keying.
- the attachment portion of the recessed part is arranged on one side of the recessed part opposite the peripheral edge.
- the setting can therefore rest on the face of the side of the cylinder head to properly seat and maintain the gem on the seat of the piece of jewelry.
- the recessed part forms a groove or a groove.
- the attachment part is formed by a wall of the groove or of the free groove of luminescent material.
- the free attachment part of luminescent material is formed by an outer peripheral part of the wall of the groove or of the groove, arranged on the side opposite the peripheral edge.
- the groove or groove is provided over at least 40% of the periphery of the cylinder head, and preferably at least 70% of the periphery of the cylinder head.
- the luminescent material comprises a matrix and a luminescent composition, preferably photoluminescent.
- the matrix is a polymeric material, such as a resin, for example a resin comprising a catalyst or a resin that can be polymerized with UV (ultraviolet) rays. It is possible to provide a resin which allows crimping before being polymerized, so that during crimping, parts of the piece of jewelery (the claws or the crimped edges) can interfere or penetrate into the still malleable resin which does not will not chip or flake, and the resin will cure after the crimp is complete.
- a resin for example a resin comprising a catalyst or a resin that can be polymerized with UV (ultraviolet) rays.
- the luminescent composition comprises at least one fluorescent compound and/or at least one phosphorescent compound, such as for example strontium aluminate SrAI204, preferably doped with a rare earth such as scandium, and /or yttrium and/or lanthanides, for example europium and/or dysprosium.
- a rare earth such as scandium, and /or yttrium and/or lanthanides, for example europium and/or dysprosium.
- the crimp gem comprises a first luminescent material having at least one first luminescent property and at least one second luminescent material having at least one second luminescent property different from the first luminescent property.
- the first luminescent material is arranged at a first position relative to the attachment portion, and the second luminescent material is arranged at a second position relative to the different attachment portion of the first relative position.
- This implementation makes it possible to provide visual effects such as particular patterns or patterns. It is also possible to provide such an implementation to assist the manufacture and to carry out the mounting under a light which excites the first or the second luminescent material to help the operator to mount the gem in a particular position. Once the excitation light is turned off, the gem will resume its "natural" appearance for the user who will not see how the assembly was carried out.
- the invention provides a mounting method in which an illumination step with a particular excitation light is provided during crimping, to indicate a particular mounting orientation.
- FIG. 1 shows a perspective view of a gem according to the present invention
- FIG. 2 represents a side view of the gem of FIG. 1;
- Figure 1 shows a perspective view of a crimping gem comprising a table 11, a crown 12, a peripheral edge 13 (a girdle or a sheet) and a yoke 14.
- the gem is cut in a baguette-like shape, but any type of stone cut or shape can be considered, such as for example a brilliant cut, a diamond cut, an emerald cut, a pear cut , marquise, heart or even cushion... It can be noted that the presence of the table is not essential, and the upper part can entirely present a shape in relief instead of a flat shape. [0035] Typically, the peripheral edge 13 separates an "invisible" part or
- the inclined walls of the yoke 14 comprise two continuous grooves 15, forming recessed parts, arranged near the peripheral edge 13 of the gem. As can be seen in Figures 1, 2 and 4, two grooves 15 are provided along the short sides of the gem, but could provide on each side, on the entire perimeter, and / or discontinuously along the walls of the cylinder head 14.
- the grooves 15 may have a width of 0.10 mm and a depth of 0.10 mm or 0.15 mm. They can be produced by laser ablation or by grinding.
- Shapes other than grooves can be provided, for example blind holes or notches with sharp edges. It is also possible to provide variable shapes along the periphery of the yoke 14. These figures 1, 2 and 4 also show that the grooves 15 are partially filled with a luminescent material 21. It can be noted that in figure 4 , only the groove 15 on the right is shown with luminescent material 21 to clearly show the groove 15 on the left alone, but in this example, the two grooves 15 are provided with luminescent material 21.
- only one of the two grooves can be provided with luminescent material 21.
- the luminescent material 21 can be provided over the entire length of the grooves 15, but it is also possible to leave parts free or free of the luminescent material 21 in a discontinuous manner.
- the luminescent material 21 is preferably photoluminescent, of the fluorescent and/or phosphorescent type (mixtures of fluorescent and/or phosphorescent materials). Provision may be made to disperse flakes or particles of luminescent material (for example strontium SrAl204 aluminate) in a matrix, for example a polymer material such as a resin (for example a polyester resin). Thus, it is possible to form a layer which covers all or part of the walls of the grooves 15, or even a sufficient quantity which fills all or part of the walls of the grooves 15.
- luminescent material for example strontium SrAl204 aluminate
- the luminescent material 21 can therefore emit light in response to light excitation with a more or less long delay. Due to the arrangement in the 15 grooves, visual and light effects can be created, which increases design possibilities and freedoms.
- Figure 3 which is a top view of the gem and which corresponds to what a user of the gem can see once set on the piece of jewelry, the grooves 15 are not visible because hidden by the external faces, and in particular by the crown 12 mainly and the table 11 to a lesser extent.
- Figures 2 and 4 show that the grooves 15 are arranged in the peripheral part of the cylinder head 14, close to the peripheral edge 13.
- the grooves 15 are arranged at an axial distance Da from the peripheral edge 13 (Da is the distance between the lower edge of the peripheral edge 13 and the edge of the groove 15 closest to the peripheral edge 13).
- the yoke 14 has a yoke depth Pc, and the gem has a total height Ht.
- the length of the gem is an external dimension of the peripheral edge De, and that the bottom of the groove 15 (part farthest from the peripheral edge 13) is located at a transverse distance Dt from the peripheral edge 13 (Dt is the distance between the lower edge of the peripheral edge 13 and the bottom of the groove 15 farthest from the peripheral edge 13).
- Dt is the distance between the lower edge of the peripheral edge 13 and the bottom of the groove 15 farthest from the peripheral edge 13.
- the axial distance Da can be within a range ranging from 5% to 75% of the yoke depth Pc, preferably, from 5% to 50% of the yoke depth Pc, and very preferably, the axial distance Da is within a range ranging from 10% to 25% of the yoke depth Pc.
- the total height Ht can be 1.25 mm
- the depth of the yoke Da can be 0.96 mm
- the axial distance Da can be 0.10 mm.
- the transverse distance Dt can be less than 30% and preferably 20% of the external dimension of the peripheral edge De.
- the transverse dimension Dt can be from 0.15 mm to 0.2 mm.
- the same groove 15 is free or free of luminescent material 21, so that these surfaces arranged on the side of the yoke 14 remain completely available for crimping the gem. Consequently, the same groove 15 can comprise or house luminescent material 21 and offer a free crimping interface, which limits the risk of damage (scratches, chipping or holes, etc.) in the luminescent material 21 which could occur during crimping.
Landscapes
- Adornments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH00286/21A CH718456A1 (fr) | 2021-03-18 | 2021-03-18 | Gemme à sertir sur une pièce de joaillerie. |
| PCT/EP2022/056481 WO2022194751A1 (fr) | 2021-03-18 | 2022-03-14 | Gemme a sertir sur une piece de joaillerie |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4307957A1 true EP4307957A1 (fr) | 2024-01-24 |
Family
ID=75267428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22715001.8A Pending EP4307957A1 (fr) | 2021-03-18 | 2022-03-14 | Gemme a sertir sur une piece de joaillerie |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4307957A1 (fr) |
| CH (1) | CH718456A1 (fr) |
| WO (1) | WO2022194751A1 (fr) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5115649A (en) * | 1991-06-10 | 1992-05-26 | Ambar Diamonds, Inc. | Invisible setting for round diamonds |
| CH703382B1 (fr) * | 2010-06-25 | 2015-03-31 | Dress Your Body Ag | Pièce de décoration à serti invisible. |
| WO2019035974A1 (fr) | 2017-08-16 | 2019-02-21 | Ng Developments, Llc | Bijou émettant de la lumière |
-
2021
- 2021-03-18 CH CH00286/21A patent/CH718456A1/fr unknown
-
2022
- 2022-03-14 WO PCT/EP2022/056481 patent/WO2022194751A1/fr not_active Ceased
- 2022-03-14 EP EP22715001.8A patent/EP4307957A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022194751A1 (fr) | 2022-09-22 |
| CH718456A1 (fr) | 2022-09-30 |
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