DE20012555U1 - Magnetic clasp for jewelry chains - Google Patents

Magnetic clasp for jewelry chains

Info

Publication number
DE20012555U1
DE20012555U1 DE20012555U DE20012555U DE20012555U1 DE 20012555 U1 DE20012555 U1 DE 20012555U1 DE 20012555 U DE20012555 U DE 20012555U DE 20012555 U DE20012555 U DE 20012555U DE 20012555 U1 DE20012555 U1 DE 20012555U1
Authority
DE
Germany
Prior art keywords
halves
clasp
chain ends
lifted
buckle
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
DE20012555U
Other languages
German (de)
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 DE20012555U priority Critical patent/DE20012555U1/en
Publication of DE20012555U1 publication Critical patent/DE20012555U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • A44C5/2071—Fasteners for straps, chains or the like for open straps, chains or the like with the two ends of the strap or chain overlapping each other and fastened by an action perpendicularly to the main plane of these two ends
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44D—INDEXING SCHEME RELATING TO BUTTONS, PINS, BUCKLES OR SLIDE FASTENERS, AND TO JEWELLERY, BRACELETS OR OTHER PERSONAL ADORNMENTS
    • A44D2203/00—Fastening by use of magnets

Landscapes

  • Buckles (AREA)
  • Adornments (AREA)

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (2)

1. Schließe für eine Schmuckkette, bei der beide Schließen­ hälften mit Hilfe von je einem Magneten zusammengehalten werden, die Verbindung zur Aufnahme der Zugkräfte - verursacht durch die Kettenenden - aber formschlüssig ist.
Die spezielle Konstruktion ist dadurch gekennzeichnet, daß
  • - durch die spezielle abgerundete Form der ineinandergrei­ fenden Teile der beiden Schließenhälften - beim Zusammen­ schnappen dieser Hälften - und evtl. teiweisem Drehen - diese in die richtige Position gebracht werden,
  • - die formschlüssige Verbindung beim Zusammenschnappen der beiden Schließenhälften entsteht,
  • - ein Öffnen der Schließe mit fast unbeweglichen Fingern möglich ist.
Ein Anfassen der Kettenenden und dann ein Verdrehen der Schließenhälften zueinander führt zu einem An- bzw. Abheben der Hälften (Trennen) und damit zum Lösen der form­ schlüssigen Verbindung,
  • - der Kraftaufwand zum Abheben der Schließenhälften voneinander mit Hilfe zweier Hebelwirkungen gering ist.
Einmal entsteht eine Hebelwirkung dadurch, daß die Schließenhälften außerhalb der Schließe an den Ösen bzw. Kettenenden angefaßt werden, und so ein größerer Radius beim Drehen zur Wirkung kommt.
Zum anderen einsteht eine zweite Hebelwirkung durch die Geometrie, die zum Abheben der Hälften führt. Die Hubhöhe ist wesentlich geringer als der Weg, den die schrägen Flächen - die einem kleinen Stück eines Schraubengewindes entsprechen - beim Drehen zurücklegen.1. Clasp for a jewelry chain, in which both halves of the clasp are held together with the help of a magnet, the connection for absorbing the tensile forces - caused by the chain ends - is positive.
The special construction is characterized in that
  • - due to the special rounded shape of the interlocking parts of the two halves of the clasp - when these halves snap together - and possibly partially turned - these are brought into the correct position,
  • - the positive connection is created when the two halves of the buckle are snapped together,
  • - The clasp can be opened with almost immovable fingers.
Grasping the chain ends and then twisting the buckle halves towards each other leads to the halves being lifted or lifted (separating) and thus to the positive connection being released,
  • - The effort required to lift the halves of the clasp from each other with the help of two leverage is low.
On the one hand, a lever effect arises from the fact that the halves of the clasp are gripped outside the clasp at the eyes or chain ends, and thus a larger radius is effective when turning.
On the other hand, there is a second leverage effect due to the geometry, which leads to the lifting of the halves. The lifting height is much less than the distance that the sloping surfaces - which correspond to a small piece of a screw thread - cover when turning. 2. Schließe nach Schutzanspruch 1 dadurch gekennzeichnet,
  • - daß die Schließenhälften ungleiche Trennungsebenen haben, und daß auf der Trennungsebene der einen Hälfte eine oder mehrere schräge Erhöhungen vorhanden sind, die in schräge Vertiefungen der Trennungsebene der anderen Schließenhälfte genau passen.
2. Clasp characterized by protection claim 1,
  • - That the clasp halves have unequal separation levels, and that on the separation level of one half there are one or more inclined elevations that fit exactly in sloping depressions of the separation level of the other closure half.
DE20012555U 2000-07-20 2000-07-20 Magnetic clasp for jewelry chains Expired - Lifetime DE20012555U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20012555U DE20012555U1 (en) 2000-07-20 2000-07-20 Magnetic clasp for jewelry chains

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20012555U DE20012555U1 (en) 2000-07-20 2000-07-20 Magnetic clasp for jewelry chains

Publications (1)

Publication Number Publication Date
DE20012555U1 true DE20012555U1 (en) 2001-03-15

Family

ID=7944168

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20012555U Expired - Lifetime DE20012555U1 (en) 2000-07-20 2000-07-20 Magnetic clasp for jewelry chains

Country Status (1)

Country Link
DE (1) DE20012555U1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT7845U3 (en) * 2005-04-29 2006-03-15 Lenk Christian MAGNETIC CLOSURE FOR JEWELERY
WO2006105786A1 (en) * 2005-04-05 2006-10-12 Else Birgitte Stengaard Jepsen Locking system for jewellery
AT504950B1 (en) * 2007-02-22 2008-12-15 Langer Gmbh JEWELERY BUCKLE
ITVI20100016A1 (en) * 2010-01-28 2010-04-28 Paolo Sandri MAGNETIC HOOK CLAMP
DE102012007259A1 (en) 2012-04-12 2013-10-17 Christiane Hacker Magnetic closure for piece of jewelry, comprises two closure pieces arranged one after another in longitudinal direction or pulling direction in closed state, and embossment engaged in recess of latter closure piece in form-fitting manner

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006105786A1 (en) * 2005-04-05 2006-10-12 Else Birgitte Stengaard Jepsen Locking system for jewellery
AT7845U3 (en) * 2005-04-29 2006-03-15 Lenk Christian MAGNETIC CLOSURE FOR JEWELERY
AT504950B1 (en) * 2007-02-22 2008-12-15 Langer Gmbh JEWELERY BUCKLE
ITVI20100016A1 (en) * 2010-01-28 2010-04-28 Paolo Sandri MAGNETIC HOOK CLAMP
DE102012007259A1 (en) 2012-04-12 2013-10-17 Christiane Hacker Magnetic closure for piece of jewelry, comprises two closure pieces arranged one after another in longitudinal direction or pulling direction in closed state, and embossment engaged in recess of latter closure piece in form-fitting manner

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20010419

R156 Lapse of ip right after 3 years

Effective date: 20040203