EP0418276B1 - Fermoir pour objet de bijouterie tels que chaines, bracelets ou analogues - Google Patents

Fermoir pour objet de bijouterie tels que chaines, bracelets ou analogues Download PDF

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Publication number
EP0418276B1
EP0418276B1 EP19890906139 EP89906139A EP0418276B1 EP 0418276 B1 EP0418276 B1 EP 0418276B1 EP 19890906139 EP19890906139 EP 19890906139 EP 89906139 A EP89906139 A EP 89906139A EP 0418276 B1 EP0418276 B1 EP 0418276B1
Authority
EP
European Patent Office
Prior art keywords
slide
slot
ring
clasp
finger
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.)
Expired - Lifetime
Application number
EP19890906139
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0418276A1 (fr
Inventor
Michel Fournier
Jacqueline Fournier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT89906139T priority Critical patent/ATE87440T1/de
Publication of EP0418276A1 publication Critical patent/EP0418276A1/fr
Application granted granted Critical
Publication of EP0418276B1 publication Critical patent/EP0418276B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/18—Fasteners for straps, chains or the like
    • A44C5/20—Fasteners for straps, chains or the like for open straps, chains or the like
    • A44C5/2009—Fasteners for straps, chains or the like for open straps, chains or the like of the ring type
    • A44C5/2014—Fasteners for straps, chains or the like for open straps, chains or the like of the ring type of the spring ring type

Definitions

  • the angular offset of the opening of the body of the clasp and its transfer in a region of the toric body close to the fixed ring ensures that the hooking ring of the other end of the jewelry item will be in support on the toric body, which is mechanically resistant having regard to its dimensions, and. not on the closing bolt of the opening, which is mechanically weaker, as can occur in embodiments de'fermoirs where the opening is located approximately opposite the fixed ring.
  • clasp which has a bolt of considerable curvilinear length, the tail of which is engaged deep inside the body so as to provide more guidance. or less effective.
  • this known clasp the opening of the body extends over approximately 90 °: this opening is too large and, when the bolt is actuated at the opening, the bolt is not sufficiently guided.
  • this known clasp is equipped with an elongated bolt which extends over approximately 180 °. This technical solution is particularly bad because a bolt in which the distance between the pusher and the end located inside the tubular body extends over 90 ° tends to get caught in the tubular body when exercising a effort on the bolt lifter to open the bolt.
  • the clasp is made of a noble metal such as gold, the excessive length of the bolt leads to a higher consumption of metal, and therefore at a higher cost.
  • the invention therefore essentially aims to propose a particular arrangement of such a clasp which gives full satisfaction as to its operation, which can be produced with a minimum of material, in particular a minimum of noble material (gold in particular), and therefore at a lower cost, and which is easy to handle for the user, in particular which can be handled in the same way as a conventional clasp.
  • the actuating finger is sufficiently disengaged from the fixed ring and can be easily held by the user, even during the opening movement when the bolt is moved in the direction of the fixed ring.
  • the presence of a guide finger improves the sliding of the bolt inside the toric body and avoids its jamming; it follows that the bolt (traditionally made quite long, precisely for its guidance in the toric body) can now be significantly shortened and, in the case of a manufacture of a precious metal such as gold, the financial gain thus obtained is very appreciable.
  • the bolt completely disappears in said body in the open position of the clasp: for this purpose, it is desirable that the body has a second longitudinal slot, located at the external periphery of the body and opening onto 'hooking opening, to receive the actuating finger at the end of the bolt opening stroke.
  • the first longitudinal slot intended for the guide finger is also located at the external periphery of the body and the guide finger extends radially outwards. It is then easier, for manufacturing, that the first and second slots are located one after the other and form a single slot. In this case, to avoid an excessive length of the slot which would risk mechanically weakening the body, it is desirable that the guide finger is located in a central region of the bolt and, in an interesting embodiment, the fingers actuation and guide can then be combined in a single piece in the form of a plate projecting radially outward from the bolt and having a longitudinal extent from the free end of the bolt.
  • the single slot extends under and beyond the fixed ring, and this ring is arranged in the form of an arch spanning the slot, in order to provide a free passage for the guide finger; in this case, the fixed ring is a mechanically resistant part fixed to the body on either side of the slot and constituting a mechanical reinforcement preventing the yawning of the edges of the slot.
  • the bolt has a length such that it extends over the entire length of the slot and conceals it when it is in the closed position: in this way, the spring remains permanently invisible and can be made of a material traditional (steel for example) of lower cost, while only the visible organs are made of a noble material (gold for example).
  • the first slot is arranged in the form of a lumen extending at the outer periphery of the body, and the guide finger extends radially outwardly being located at the end of the opposite bolt to the one with the actuating finger.
  • the first slot is arranged in the form of a lumen extending at the internal periphery of the body and the guide finger extends radially towards the inside of the torus formed by the body; the guide means (finger and slot) are then more or less concealed from view.
  • the spring clasp or ring shown in Figures 1 and 2 comprises an O-ring or body 1 formed by a welded, strong and rigid tube having an opening 3 extending over forty five degrees of which the two sections are exactly opposite; the internal diameter of this O-ring 1 is approximately twice that of the tube.
  • a small solid ring 2 is formed by a wire with a diameter greater than half that of the tube of the ring 1. This solid ring in the shape of a "U" is welded astride the tubular ring 1 for the hooking the end ring of a chain 12.
  • the opening 3 is placed in the quarter of the tubular ring 1 between the diametrical line (AA ′) perpendicular to the axis of the small fixed ring 2 and the small ring itself, that is to say at proximity to the fixed ring 2.
  • a bolt 4 is formed of a solid wire of an adequate diameter whose curve is identical to that of the tube 1 to slide there perfectly. It is slightly longer than twice the opening 3.
  • This bolt is provided with a guide pin or guide finger 5 on its outer part, on its longitudinal axis; this finger is about a quarter of the diameter of the bolt thick and is located substantially in the center of the latter; its height is equal to or greater than the thickness of the outer wall of the tube 1.
  • a groove or slot 6 cut on the outside of the tube along its longitudinal axis is open on the section of the ring 1 at point 14.
  • This groove is substantially wider than the thickness of the guide pin, just to give the clearance desired ; it is cut below the small ring 2, long enough so that, when the guide pin is in contact with the bottom of the groove 15, the bolt completely releases the opening 3 of the spring ring.
  • the guide pin remains engaged in the groove entry at point 14.
  • the operating or actuating finger is placed practically at the head of the bolt: in this example, it is formed by a spherical tab 7, fixed by means of a small blade 9 of the same thickness and on the same line as the tenon-guide.
  • the user presses the tab 7 with his nail, pressing on the small blade 9 which slightly protrudes from the outside wall of the tube, this blade allows the nail to easily pass the entry from the groove at point 14, the bolt compresses the spring, the guide pin 5 rests at the bottom of the groove at point 15 and the head of the bolt is flush with the opening of the tube at point 14: in this position, the nail is then in the extension of the cut 14, to hang the end ring 13 simply slide it on the nail in the opening, release the pressure, the bolt takes its place and the spring ring is locked.
  • the clasp shown in Figures 3 and 4 (on which the members identical to those of Figures 1 and 2 are designated by the same reference numbers increased by 20) is a variant consisting in that the bolt 24 is provided with a blade 25 longer than the opening 23. This blade replaces the guide pin 5 and the small blade 9. It has the double effect of guiding the bolt 24 laterally and of transmitting the thrust received by the tab 27 placed substantially at the head of blade 25. The bolt locked, this blade 25 rests against the tube at point 37, it is engaged in the groove 26 from point 34 to point 36. The operation is identical to that of the spring ring shown in FIGS. 1 and 2.
  • the clasp shown in FIG. 5 is another variant: the guide pin 45 is placed at the tail end 44; the guide slot 46 is also displaced and is located on the longitudinal axis of the tubular ring of the small solid ring 42 from point 54 to point 55; this slot 46 is then arranged in the form of an independent light.
  • the bolt completely clears the opening when the guide pin bears against the bottom of the groove at point 55.
  • a small groove 57 is cut at the edge of the opening 56, on the outside of the tubular ring so that the small blade 49 which carries the tab can be embedded therein.
  • the clasp shown in FIG. 6 is yet another variant: the guide pin 65 is at the tail end 64, but placed towards the inside of the tubular ring and the guide slot 66, also in the form of a lumen, is cut on the longitudinal axis inside the tubular ring from point 74 to point 75.
  • the small groove 77 is identical to that of the previous variant.
  • the diameter of the spring rings can be reduced, for example: a 5.5 mm spring ring according to the invention can replace a traditional spring ring of 6.5 to 7 mm.
  • Figures 7 and 8 show a variant of the clasp of Figures 3 and 4.
  • the significant length of the single slot 26 may mechanically weaken the ring toric and, under the influence of transverse forces in particular during actuations of the finger 27 during openings and closings, the edges of the slot 26 may be separated from one another.
  • the previous fixed ring consisting of a single wire, is here replaced by a solid piece 82 having the general shape of an 8, the lower loop of which is open, with its edges 83 welded to the external walls of the O-ring 81, on either side of the lips of the slot 26.
  • the part 82 may have other conformations, insofar as the edges of the slot 26 are held firmly and prevented from moving away from one of the 'other.

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  • Adornments (AREA)
EP19890906139 1988-05-19 1989-05-17 Fermoir pour objet de bijouterie tels que chaines, bracelets ou analogues Expired - Lifetime EP0418276B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89906139T ATE87440T1 (de) 1988-05-19 1989-05-17 Verschluss fuer schmuckketten, armbaender oder dergleichen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8806687 1988-05-19
FR8806687A FR2631663B1 (fr) 1988-05-19 1988-05-19 Dispositif de fermeture d'un anneau a ressort utilise en bijouterie

Publications (2)

Publication Number Publication Date
EP0418276A1 EP0418276A1 (fr) 1991-03-27
EP0418276B1 true EP0418276B1 (fr) 1993-03-31

Family

ID=9366424

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890906139 Expired - Lifetime EP0418276B1 (fr) 1988-05-19 1989-05-17 Fermoir pour objet de bijouterie tels que chaines, bracelets ou analogues

Country Status (6)

Country Link
EP (1) EP0418276B1 (pt)
AU (1) AU3682589A (pt)
ES (1) ES2013953A6 (pt)
FR (1) FR2631663B1 (pt)
PT (1) PT90605B (pt)
WO (1) WO1989011233A1 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200445179Y1 (ko) 2007-11-20 2009-07-06 명제영 장신구용 체결구
ITMO20130077A1 (it) * 2013-03-25 2014-09-26 Plus Group Sa Chiusura di sicurezza per prodotti di gioielleria

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE39481C (de) * Firma HCH. SCHOBER & CO. in Pforzheim Ring mit federndem Verschlufs
US1340206A (en) * 1919-06-05 1920-05-18 Ballou & Co B A Spring-ring
US2222053A (en) * 1940-02-26 1940-11-19 A E Waller Company Inc Spring ring

Also Published As

Publication number Publication date
EP0418276A1 (fr) 1991-03-27
PT90605B (pt) 1994-05-31
AU3682589A (en) 1989-12-12
ES2013953A6 (es) 1990-06-01
PT90605A (pt) 1989-11-30
FR2631663A1 (fr) 1989-11-24
FR2631663B1 (fr) 1990-09-14
WO1989011233A1 (fr) 1989-11-30

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