A Jewelry Clasp
20230172325 ยท 2023-06-08
Inventors
- Jean-Pierre Phouthapanya Selbe (Kwaeng Pravet, Khet Pravet, TH)
- Koumanotham Abhay (Kobenhavn V, DK)
- Punnakaphun Wangphaisal (Kobenhavn V, DK)
- Kidsakorn Judto (Kobenhavn V, DK)
Cpc classification
A44C5/2052
HUMAN NECESSITIES
International classification
Abstract
A jewelry clasp includes a clasp shell enclosing a spacing, the clasp shell having a first opening for slidably receiving a first end of an elongated member; and a spring-biased push button slidably received in the spacing through a second opening, the button being slidable between a releasing state and a locking state, wherein the button has a hole for receiving the first end of the elongated member when the first end is received through the first opening of the clasp shell, wherein the push button further comprises a stopper, the stopper releasing the first end of the elongated member when the button is in the releasing state; and a magnet exerting a magnetic force which, when the first end of the elongated member includes a magnetic material, acts to pull said first end of the elongated member through the first opening and into the hole of the button.
Claims
1. A jewelry clasp for securing a first end of an elongated member of a bracelet or a necklace to a second end of the elongated member, the jewelry clasp comprising: a clasp shell enclosing a spacing, the clasp shell having a first opening for slidably receiving the first end of the elongated member for releasably securing the first end to the second end of the elongated member; a spring-biased push button slidably received in the spacing through a second opening of the clasp shell, the button being slidable between a releasing state and a locking state so that the button can be pushed into the releasing state when a push force against a spring force is applied to the button, the button returning to the locking state by means of the spring force when the push force is released, wherein: the push button has a hole for receiving the first end of the elongated member when the first end is received through the first opening of the clasp shell; the push button further comprises a stopper for engaging and locking the first end of the elongated member to the clasp when the first end is positioned in the hole and the push button is in the locking state, the stopper releasing the first end of the elongated member when the push button is in the releasing state; and a magnet exerting a magnetic force which, when the first end of the elongated member includes a material magnetically attractable by the magnet, acts to pull said first end of the elongated member through the first opening and into the hole of the button when said first end is positioned in said first opening.
2. A jewelry clasp according to claim 1, wherein the magnet is positioned inside the spacing oppositely from the first opening, and said hole is a through-hole, whereby said first end of the elongated member is allowed to abut the magnet when inserted through the hole.
3. A jewelry clasp according to claim 1, wherein the stopper is a bracket with an inclined surface, the inclined surface in the locking position of the jewelry clasp being positioned at an entrance to the spacing from the first opening, so that insertion of said first end through the first opening will force the stopper towards the releasing state thereof, allowing insertion of said first end into said hole in the push button.
4. A jewelry clasp according to claim 1, wherein the push button returns by means of the spring bias to the locking state if the first end of the elongated member is not inserted or is fully inserted in the jewelry clasp.
5. A jewelry clasp according to claim 1, wherein the push button comprises a top part being positioned at least partly in the second opening in the locking state, and a bottom part positioned oppositely from top part, the bottom part and the top part being connected by one or more legs.
6. A jewelry clasp according to claim 5, further comprising a button support surface fixed to the clasp shell, the button support surface being positioned below the top part of the push button, so that a bottom surface of the top part abuts the button support surface when the push button is in the releasing state.
7. A jewelry clasp according to claim 1, wherein an interior surface of the clasp shell comprises one or more tracks, in each of which channels a knob of the push button may slide when the push button slides between the releasing state and the locking state.
8. A jewelry clasp according to claim 7, wherein the or each track comprises a support element positioned at an end of the track to limit the sliding movement of the push button, so that the push button is prevented from being extracted from the spacing.
9. A jewelry clasp according to claim 5, wherein one said knob is positioned on one said leg of the push button, a U-shaped slot in the leg defining a resilient knob leg of the leg, said U-shaped slot making the knob leg flexible so that the knob can be pushed inwardly when inserting the push button into the jewelry clasp during assembly thereof.
10. A piece of jewelry, such as a bracelet or a necklace, comprising: a jewelry clasp according to claim 1; and an elongated member with a first and a second end; wherein: the first opening of the clasp shell is configured to slidably receive the first end of the elongated member to releasably secure the first end to the second end of the elongated member; the hole of the push button is configured to receive the first end of the elongated member when the first end is received through the first opening of the clasp shell; the stopper of the push button engages and locks the first end of the elongated member to the clasp when the first end is positioned in the hole and the push button is in the locking state, and the stopper releases the first end of the elongated member when the push button is moved from the locking state to the releasing state; and the first end of the elongated member comprises a material attractable by the magnet in the spacing so that when the first end is received in the first opening of the clasp shell, the magnet exerts a magnetic force which acts to pull the first end of the elongated member into the hole of the button.
11. A piece of jewelry comprising: an elongated member having a first end and a second end; and a jewelry clasp, the jewelry clasp comprising: a clasp shell enclosing a spacing, the clasp shell having a first opening for slidably receiving the first end of the elongated member for releasably securing the first end to the second end of the elongated member; and a spring-biased push button slidably received in the spacing through a second opening of the clasp shell, the push button being slidable between a releasing state and a locking state so that the button can be pushed into the releasing state when a push force against a spring force is applied to the push button, the push button returning to the locking state by means of the spring force when the push force is released, wherein the push button has a hole for receiving the first end of the elongated member when the first end is received through the first opening of the clasp shell, and wherein the push button further comprises a stopper engaging and locking the first end of the elongated member when the first end is positioned in the hole and the push button is in the locking state, the stopper releasing the first end of the elongated member when the push button is in the releasing state; and a magnet positioned in the spacing or comprised in the first end of the elongated member; wherein a material magnetically attractable by the magnet is included in that of the first end of the elongated member and the spacing which does not include the magnet, so that when the first end of the elongated member is positioned in said first opening, the magnet acts to pull said first end through the first opening and into the hole of the button.
12. A piece ofjewelry according to claim 10, wherein the magnet is a first magnet positioned in the spacing, and the first end of the elongated member comprises a second magnet, the magnets attracting each other when the first end of the elongated member is inserted into the first opening.
13. A piece of jewelry according to claim 10, wherein said first end comprises a tip part with a front or tip end for facing in an insertion direction when inserting said first end into the jewelry clasp through the first opening, wherein the tip part further comprises a rear end which includes a step or cut-out, the stopper engaging and locking said first end when the first end is positioned in the hole and the push button is in the locking state by the stopper being inserted into said step or cut-out.
14. A method for assembly of a jewelry clasp, the method comprising: 1) providing a clasp shell enclosing a spacing, the clasp shell having a first opening for slidably receiving a first end of an elongated member of a piece of jewelry for releasably securing the first end to the second end of the elongated member; 2) positioning a spring in a bottom part of a push button; 3) positioning the push button through a second opening of the clasp shell so that the push button is slidably received in the spacing through the second opening of the clasp shell, so that the button is slidable between a releasing state and a locking state and can be pushed into the releasing state when a push force against a spring force provided by the spring is applied to the push button, the push button returning to the locking state by means of the spring force of the spring when the push force is released, wherein the button has a hole for receiving the first end of the elongated member when the first end is received through the first opening of the clasp shell, wherein the button comprises a stopper for engaging and locking the first end of the elongated member when the first end is positioned in the hole and the button is in the locking state, the stopper releasing the first end of the elongated member when the button is in the releasing state; and 4) positioning a magnet in the spacing, the magnet exerting a magnetic force which, when the first end of the elongated member includes a material magnetically attractable by the magnet, pulls said first end of the elongated member through the first opening and into the hole of the push button when said first end is positioned in said first opening.
15. A method for opening a piece of j ewelry assembled according to the method of claim 11, comprising: 5) pushing the push button against the spring force by exerting a push force on a push surface of the button, whereby the stopper releases the first end of the elongated member; and 6) removing the first end of the elongated member by pulling the first end of the elongated member out of the hole of the button and out of the first opening of the clasp shell.
16. A method for closing a piece of jewelry assembled according to the method of claim 11, comprising: 5) inserting the first end of the elongated member into the first opening of the clasp shell and into the hole of the push button, so that during this insertion the first end engages the stopper, whereby the insertion of the first end pushes the stopper from the locking state into the releasing state to allow the first end to be inserted into the hole of the push button.
17. A jewelry clasp according to claim 7, wherein one said knob is positioned on one said leg of the push button, a U-shaped slot in the leg defining a resilient knob leg of the leg, said U-shaped slot making the knob leg flexible so that the knob can be pushed inwardly when inserting the push button into the jewelry clasp during assembly thereof.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0083] In the following, an embodiment of a j ewelry clasp according to the invention will be described with reference to the enclosed drawings, in which:
[0084]
[0085]
[0086]
[0087]
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[0090]
[0091]
DETAILED DESCRIPTION
[0092]
[0093] The jewelry clasp 1 is intended for securing or attaching the cap 3 of the bracelet B to a second end 4 of the elongated member 22, as shown in
[0094] The jewelry clasp 1 comprises a one-piece, spherical clasp shell 9 enclosing and defining an interior spacing 24, see e.g.
[0095] The button 2 has a hole 21 for receiving the cap 3 of the elongated member. The cap 3 in the releasing state of the push button 2 and clasp 1 is received through the first opening 19 of the clasp shell 9. As best seen in
[0096] As best seen in
[0097] As shown in
[0098] The clasp shell 9 further comprises an upper part 42, a lower part 12 positioned oppositely from the upper part 42, a first side 46, and a second side 47, each of the first and second sides connecting the upper and lower parts. The first 46 and the second side 47 are positioned oppositely from each other. A top part 13 of the push button is positioned near the upper part 42 of the clasp shell 9; a bottom part 27 of the push button near the lower part 12 of the clasp shell 9. The clasp shell 9 comprises the first opening 19 and the second opening 20. The first opening 19 is positioned at the first side 46 of the clasp shell 9. The first end of the elongated member is received in the first opening 19. The second opening 20 is positioned at the upper part 42 of the clasp shell 9. The first opening 19 and second opening 20 are located at positions at a right angle to each other, the angle being measured from a center of the clasp shell 19. The first 19 and second opening 20 extend into and provide access to the spacing 24. The second opening 20 has a diameter that is equal to two times the diameter of the first opening 19.
[0099] The interior surface is beveled and includes a stepped portion 33 at the lower part 12 of the clasp shell 9. The clasp shell 9 encloses the spacing 24. The spacing 24 extends from a top of the clasp and from an upper part 42 of the clasp shell to a bottom of the clasp or the lower part 12 of the clasp shell 9. The clasp shell 9 encloses the spring 7, the push button 2 including the stopper 8, and the magnet 10.
[0100] The clasp shell 9 also comprises a third opening positioned at the second side 47 of the clasp shell 9. The third opening is positioned oppositely from the first opening 19 at the first side 46 of the clasp shell 9. The third opening is provided as a cut-out or spacing 16a in a ring 16 forming part of the clasp shell 9, see further below. A diameter of the third opening or cut-out 16a is of equal size to the diameter of the first opening 19. All the first, second, and third openings 19, 20, 16a are circular in a cross-section.
[0101] The second end 4 is fixedly mounted to the jewelry clasp shell 9. More specifically, the second end 4 of the elongated member 22 is mounted in the cut-out 16a. The ring 16 is an open-ended hollow protrusion positioned at the second side 47 of the clasp shell 9 oppositely from the first side 46 of the clasp shell 9 and from the first opening 19. The ring 16 is integrated in and/or one piece with the clasp shell 9.
[0102] During assembly of the clasp 1, the spring-biased push button 2 is received into the spacing 24 through the second opening 20 of the clasp shell 9 before the push button 2 is received in the spacing 24. The spring force acting on the push button 2 in the assembled state of the clasp 1 arises from the helical coil spring 7. The spring 7 is mounted at the bottom part 27 of the button 2 and abuts an interior surface 48 of the lower part 12 of the clasp shell 9. The spring 7 biases the push button 2 towards the locking state. The spring force is applied to act against the push direction P of the push button 2.
[0103] The push button 2 comprises two separate cylinder cell sections formed as legs 25 defining the hole 21 between them for receiving the cap 3 of the elongated member 22. The hole 21 is positioned below the top part 13 of the push button. The push button includes a push surface 34 positioned on the top part 13 of the push button 2. As best seen in
[0104] The push button 2 further comprises a bottom part 27, which is positioned oppositely from the second opening 20 and from the push surface 34. The bottom part 27 and the top part 13 are connected by the two legs 25. The two legs 25 are positioned adjacent an interior surface of the clasp shell 9 at third 49 and fourth 50 sides of the clasp shell 9. The hole 21 of the push button is defined at a top by the top part 13, at a bottom by the bottom part 27, and at two sides by the respective two legs 25. The bottom part 27 and the legs 25 are positioned inside the spacing 24 in both the locking and the releasing states. The top part 13 and the push surface 34 project from the clasp shell 9 in the locking state.
[0105] The push button 2 is configured so that it can only be pushed into the spacing 24 to a limited extent. This is achieved by a button support surface 36 forming part of the clasp shell 9. The button support surface 36 is positioned below the top part 13 of the push button 2, so that a lower surface 35 of the top part 13 abuts the button support surface 36 when the push button 2 is pushed to the releasing position. Alternatively, this may be achieved by the spring 7 so that when a maximum compression of the spring has been arrived at during the sliding movement of the push button 2, the movement of the push button 2 in the direction P is limited by the spring 7.
[0106] As seen best in
[0107] The push button 2 comprises the stopper 8. The stopper 8 engages and locks the cap 3 of the elongated member 22 when the cap 3 is positioned in the hole 21 of the push button and the button is in the locking state shown in
[0108] The magnet 10 is positioned inside the spacing 24 oppositely from the first opening 19. The hole 21 is a through-hole, whereby the cap 3 is allowed to abut the magnet 10 when inserted through the hole 21. The magnet 10 is positioned in a cutout in the interior surface 45 of the clasp shell 9 opposite from the first opening 19 of the clasp shell 9. The magnet 10 abuts the clasp shell 9 at a back end of the magnet 10. The magnet 10 is configured to magnetically attract the second magnet 11. The second magnet 11 is located in the cap 3 of the elongated member. During closing of the bracelet B, the cap 3 is guided to be slidably received into the first opening 19 of the clasp shell 9. The push button 2 returns by means of the bias from the spring 7 to the locking state when the cap 3 of the elongated member is not inserted or is fully inserted in the jewelry clasp 1, and when the push button 2 is not pushed. The jewelry clasp 1 releasably secures the cap 3 of the elongated member 22 by the opposite polarity of the two magnets 10, 11. When the push button 2 is in the releasing state as shown in
[0109] The elongated member 22 comprises a flexible, intermediate portion in the form of a flexible snake chain 54.
[0110] The cap 3 of the elongated member 22 is perceived as a free, distal end of the elongated member 22. The second end 4 is perceived as a proximal end. The cap 3 comprises the tip part 38. The second end 4 is a free end of the snake chain 54. The tip part 38 has a frustoconical shape, which is configured to fit into the first opening 19 and into the hole 21. The cap 3 comprises a magnet 11; in particular, the magnet 11 is accommodated in the tip part 38. The second end 4 is inserted into the ring 16 as described above and shown in
[0111] In the embodiment of the drawings, the ring 16 is part of the jewelry clasp 1 and is in one piece with the clasp shell 9. In other embodiments, the ring 16 can generally be provided as part of a cap of the second end 4, such a cap of the second end 4 being similar or identical to the cap 3 and being inserted into the clasp shell 9 to be held by the jewelry clasp 1. In such embodiments, the cap of the second end 4 may be configured to be releasable from the jewelry clasp 1 in a manner similar or identical to the cap 3; in such embodiments, a cap of the second end 4 may instead include the first magnet 10 so that the two ends 3, 4 are attracted to each other when both are inserted into the jewelry clasp 1.
[0112] The magnet 10 and the spring 7 are positioned in the spacing 24 and abutting or attached to the interior surface 45 of the clasp shell 9, the interior surface 45 enclosing the spacing 24 of the clasp shell 9.
[0113] As illustrated in
[0114] The cap 3 comprises at a front end the tip part 38 with a front or tip end facing in the insertion direction L when inserting the cap 3 into the jewelry clasp 1 through the first opening 19. The cap 3 also comprises at a rear end a cap part 40 which includes an open spacing or cutout 37 open at a rear end of the cap 3 and in which a first end of the snake chain 54 is inserted, as shown in
[0115] As seen in
[0116]
[0117] The jewelry clasp 1 may be assembled according to the following sequence of method steps: [0118] (1) the clasp shell 9 of
[0124] The bracelet B including the jewelry clasp 1 may then be assembled by attaching the second end 4 of the elongated member 22 to the clasp shell 9 as previously described.
[0125] If the cap 3 of the bracelet B is inserted into and locked to the jewelry clasp 1 as shown in
[0128] If the cap 3 of the bracelet B is not inserted into the jewelry clasp 1 as shown in
[0129] As explained, the user does not need to press the push button 2 to insert the cap 3 into the jewelry clasp 1 and close the bracelet B which may allow the user to use only a single hand to close the bracelet B.
[0130] The disclosure is not limited to the embodiments shown and described in the above, and various modifications and combinations may be carried out.
LIST OF REFERENCE NUMERALS
[0131] 1 Jewelry clasp
[0132] 2 Push button
[0133] 3 Cap
[0134] 4 Second end of elongated member 22
[0135] 7 Spring
[0136] 8 Stopper
[0137] 9 Clasp shell
[0138] 10 First magnet
[0139] 11 Second magnet
[0140] 12 Lower part of clasp shell 9
[0141] 13 Top part of push button 2
[0142] 14 Inclined surface of stopper 8
[0143] 15 Projection of push button 2
[0144] 16 Ring
[0145] 16a Cut-out in ring 16
[0146] 17 Track
[0147] 18 Knob
[0148] 19 First opening of clasp shell 9
[0149] 20 Second opening of clasp shell 9
[0150] 21 Hole of button
[0151] 22 Elongated member
[0152] 23 First end of cap
[0153] 24 Spacing
[0154] 25 Leg of push button 2
[0155] 26 Main part of push button 2
[0156] 27 Bottom part of push button 2
[0157] 28 Attachment slot
[0158] 29 First end of stopper 8
[0159] 30 Barb of stopper 8
[0160] 31 Slot
[0161] 32 Leg of stopper 8
[0162] 33 Beveled surface
[0163] 34 Push surface
[0164] 35 Lower surface
[0165] 36 Button support surface
[0166] 37 Cut-out
[0167] 38 Tip part
[0168] 39 Portion of reduced diameter
[0169] 40 Cap part
[0170] 41 Wall sections
[0171] 42 Upper part of clasp shell 9
[0172] 43 Knob leg
[0173] 44 Exterior surface of clasp shell 9
[0174] 45 Interior surface of clasp shell 9
[0175] 46 First side of clasp shell 9
[0176] 47 Second side of clasp shell 9
[0177] 48 Interior surface of lower part 12 of clasp shell
[0178] 49 Third side of clasp shell 9
[0179] 50 Fourth side of clasp shell 9
[0180] 51 Upper track end
[0181] 52 Slot of leg 25
[0182] 54 Snake chain
[0183] 55 Opening for attachment of stopper
[0184] 56 Tread
[0185] B Bracelet
[0186] L Length direction
[0187] P Push direction