EP0148165A2 - Stift für einen Ohrstecker - Google Patents

Stift für einen Ohrstecker Download PDF

Info

Publication number
EP0148165A2
EP0148165A2 EP85300095A EP85300095A EP0148165A2 EP 0148165 A2 EP0148165 A2 EP 0148165A2 EP 85300095 A EP85300095 A EP 85300095A EP 85300095 A EP85300095 A EP 85300095A EP 0148165 A2 EP0148165 A2 EP 0148165A2
Authority
EP
European Patent Office
Prior art keywords
post
retainer member
retainer
pin
earring
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.)
Withdrawn
Application number
EP85300095A
Other languages
English (en)
French (fr)
Other versions
EP0148165A3 (de
Inventor
Benjamin Feinsod
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.)
CERTIFIED MANUFACTURING TECHNOLOGIES Inc
Original Assignee
CERTIFIED MANUFACTURING TECHNOLOGIES Inc
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 CERTIFIED MANUFACTURING TECHNOLOGIES Inc filed Critical CERTIFIED MANUFACTURING TECHNOLOGIES Inc
Publication of EP0148165A2 publication Critical patent/EP0148165A2/de
Publication of EP0148165A3 publication Critical patent/EP0148165A3/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C7/00—Ear-rings; Devices for piercing the ear-lobes

Definitions

  • This invention relates to a post for an earring or like article of jewelry, which of necessity must have an extremely small diameter for it to pass through a small perforation in the earlobe of the user.
  • the present invention relates to a post for an earring to be used by persons having pierced earlobes.
  • the invention also relates to a method of manufacture of the earring post of the present invention, by which the earring post can be produced on an automated mass-production basis.
  • earring constructions used by persons having pierced earlobes include a post attached to a rear face of the earring, and which is to be passed through a perforation in the user's earlobe, and then retained in that position by applying a separate retainer member to the end of the post.
  • the retainer member usually is comprised of a threaded cap member which is screw threaded onto the end of the post.
  • Such threaded cap members are difficult to apply to the post at the time the post extends behind the user's earlobe, and are prone to be dropped by the user and possibly lost.
  • retainer member is in the form of a pair of spring loaded jaws which are mounted on an apertured plate. The plate is slid onto the post, and is secured to the post by the fractional grip of spring lesded jaws and thus restrained against accidental remcval from the post. Agsin, this form of retainer member is difficult to apply to the post, in that the user must align the post and the aperture in the plate and then overcome the pressure exerted by the spring loaded jaws in order to permit the plate to be slid onto the end of the post.
  • a post for an earring has a diameter of only 33 one thousandths of an inch.
  • To accurately slot such a post longitudinally through one third of its width requires milling, sawing, or otherwise forming a slot having a width of only 11 one thousandths of an inch, and to high manufacturing tolerances if smooth operation of the retainer member is to be insured.
  • the retainer member must be accurately form finished for thet portion which extends through the slotted end of the post to have a thickness of 11 one thousandths of one inch or less.
  • the problems of making and assembling the earring post and retainer member construction may be overcome by eliminating the slot in the end of the post, and by instead forming the post and retainer member of complementary shapes which readily can be mass-produced by modern mass-production techniques without resorting to micro-machining techniques. may be
  • the post of the present invention is xformed at one of its ends with a longitudinally extending recess, and is of a transverse cross-section at that end which is preferably a segment of a circle.
  • the retainer member is formed at one of its ends for it to have a transverse cross-section complementary to that of the post end, such that the retainer member, when axially aligned with the post, constitutes an axial continuation of the post in the substantial absence of any surface discontinuities along the length of the post and retainer member.
  • the axially spaced end surfaces of the said one end of the post may be are for med as surfaces that extend transverse to the longitudlnal axis of the post at oppositely inclined angles, and, the axially spaced end surfaces of said one end of the retainer member are formed for them to be complementary to those of the end surfaces of the post. In this manner, it is insured that the retainer member is restrained against rotation in one direction and held aligned with the post during the insertion of the post and retainer member through the user's pierced earlobe.
  • the retainer member is pivotally connected to the said one end of the post by a pin, the pin extending transversely through the post and retainer member, and being secured therein in any convenient manner against axial displacement relative to the post and the retainer member.
  • the pin may be a separate pin which is inserted through aligned apertures in the post and retainer member, or, according to the method of the present invention, the pin is formed integrally with either the post or the retainer member by cold working the metal of that member to form the pin from the metal comprising that member, and preferably is formed by cold working the metal of that member to extrude the metal directly into an aperture in the other member and effect formation and securing of the pin in a single operation.
  • the post 10 will be formed from a fine metal such as gold, platinum, or silver. If the post is formed of silver, then, preferably it is electroplated with white gold or rhodium to inhibit oxidstion of the silver.
  • the post can be formed from a surgical quality stainless steel, or, can be formed from a base metal such as copper or brass appropriately coated with a hypo-allergenic lacquer, or appropriately electroplated with a fine metal.
  • the post 10 is recessed at its end to provide a planar surface 12 extending substantially longitudinally of the post, the post being preferably of semi-circular cross-section at its end.
  • planar surface 12 terminates at its opposite ends in oppositely inclined surfaces 14, 16 extending transversely of the post 10.
  • a retainer member or swivel- 20 Pivotally mounted on the end of the post 10 by means of a pin 18 is a retainer member or swivel- 20, which is formed with surfaces complementary to the surfaces 12, 14 and 16 of the post end.
  • the pin 18, which is preferably formed from a ductile fine metal, is peened over at its ends, thus preventing separation of the retainer member 20 from the end of the post 10, and prohibiting axial withdrawal or displacement of the pin 18.
  • the retainer member 20 is of a transverse cross-section complementary to that of the end of the post, and, includes oppositely inclined surfaces 14a, 16a complementary to the surfaces 14, 16 of the post end, such that, when the retainer member is aligned with the axis of the post, the retainer member constitutes a continuation of the post in the substantial absence of any surface discontinuities.
  • the swivel is restrained against movement in a clockwise direction by virtue of the abutment of the opposed end faces 14, 14a and 16, 16a, thus faciliating insertion of the retainer member and post through a perforation in the uses earlobe.
  • the end faees being formed as planar surfaces, they can be of any appropriate form provided that they interfit and restrain the swivel aligned with the post.
  • the retainer member 20 Upon final insertion of the post, the retainer member 20 is positioned beyond the flesh of the earlobe and can then be swivelled about the pin 18 from its position axially aligned with the post 10 to a position extending transversely thereof, thus prohibiting withdrawal of the post 10 from the user's earlobe until such time as the retainer member is repositioned for it to be axially aligned with the post 10.
  • the respective post end and retainer member readily can be formed on a continuous mass-production basis and in the absence of specialized micro-machinery by drop-forging or pressing. If desired, the post and the retainer member can be formed integrally with each other in a single operation, together with the apertures for reception of the pin 18, find then severed from each other along the mating faces 16, 14a. In this manner, both members are formed economically in a single operation. Alternatively, the post and the retainer member can formed separately in a continuous operation. '
  • the respective members can be subjected to a tumbling operation for the purpose of polishing down any flashing or sharp edges which may have occurred in the forming operations.
  • the respective components can then be automatically sorted and assembled, and then pinned to each other by an appropriate pin inserting mechanism capable of upsetting the ends of the pin to produce the required axial location of the pin.
  • the assembly is then preferably subjected to a finish polishing operation in a tumbling barrel.
  • either the post end or the retainer member can be formed to provide the pin, as illustrated in Figure 5.
  • the pin 18a is shown as formed integrally with the retainer member 20, such that it can be passed through an aperture in the end of post 10, and then expanded by an appropriate punch to secure the respective members to each other in pivotal relationship.
  • FIG. 6 there is diagramatically illustrated the method of the present invention of forming and securing the pivot pin in a single operation.
  • the post 10 and the retainer member 20 are inserted into the bore of closed forming die 25.
  • the retainer member 20 has been previously perforated to provide a pin receiving aperture 18b.
  • the post 10 can be provided with the pin receiving aperture.
  • the post and retainer member are then compressed axially by an axially moveable punch 26 with sufficient force to cause cold flow of the metal of the post into and through the perforation in the retainer member, thus simultaneously forming the pivot pin and pivotally attaching the retainer member to the post.
  • the pin and retainer member are confined within the chamber of a hydroforming die 28, and are subjected to radially inward pressure in the vicinity of the perforation to compress the post and retainer member sufficiently to cause the metal of the post to cold flow and extrude into the aperture of the retainer member.
  • the hydroforming die 28 is actuated by hydraulic fluid P under pressure, which acts on a flexible tubular diaphragm wall 29 to transmit the pressure of the fluid to the post and retainer.
  • hydraulic fluid P under pressure
  • an axially moveable end stop 30 is provided for positioning and holding the post and retainer member in alignment and for subsequently ejecting the so formed and assembled post, retainer member and pivot pin.
  • the post and retainer member can be subjected simultaneously or sequentially to both axial compressive force by the punch 26 and the diaphragm wall 29.
  • the assembled post and retainer member are then available for attachment to the frame or body of the earring by soldering, tack welding, or by any other appropriate operation.
  • Typical dimensions of the assembled post and retaining member are a post-length of 7/16 inch, a swivel length of 3/16 inch, a post diameter 33 one thousandths inch, and a radius of the respective post and swivel ends of 16.5 one thousandths of an inch.
  • the pin 18 will be 12 one thousandths of an inch in diameter, and further, typically, the respective elements will each be formed of 10 to 18 karat white or yellow gold.
  • the respective elements can be formed in almost the total absence of metal losses, thus eliminating to the greatest possible extent the need to salvage or recover tailings or machinings.

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  • Adornments (AREA)
EP85300095A 1984-01-05 1985-01-07 Stift für einen Ohrstecker Withdrawn EP0148165A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56838684A 1984-01-05 1984-01-05
US568386 1984-01-05

Publications (2)

Publication Number Publication Date
EP0148165A2 true EP0148165A2 (de) 1985-07-10
EP0148165A3 EP0148165A3 (de) 1985-10-16

Family

ID=24271080

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85300095A Withdrawn EP0148165A3 (de) 1984-01-05 1985-01-07 Stift für einen Ohrstecker

Country Status (2)

Country Link
EP (1) EP0148165A3 (de)
IL (1) IL72913A0 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2381183A (en) * 2001-10-27 2003-04-30 Peter Lawton Jewellery for pierced navels

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE31030C (de) * JOS. schwinger in Stuttgart Befestigung von Ohrknöpfchen
GB368202A (en) * 1931-09-07 1932-03-03 Ernst Weiss Improvements in or relating to collar studs and neck-tie retainers
US3040515A (en) * 1958-12-15 1962-06-26 Lenox Jewelry Products Corp Automatic machine for assembling lazy tongs linkage from strips of link plates
GB1186376A (en) * 1966-07-16 1970-04-02 Clydesdale Stamping Company Lt Improvements relating to Methods of Manufacturing Articles by Forging and Articles Produced by these Methods
EP0007773A1 (de) * 1978-07-20 1980-02-06 Frank J. Cappiello Halte- und Sperrsystem eines Ohrrings für ein durchstochenes Ohr

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE31030C (de) * JOS. schwinger in Stuttgart Befestigung von Ohrknöpfchen
GB368202A (en) * 1931-09-07 1932-03-03 Ernst Weiss Improvements in or relating to collar studs and neck-tie retainers
US3040515A (en) * 1958-12-15 1962-06-26 Lenox Jewelry Products Corp Automatic machine for assembling lazy tongs linkage from strips of link plates
GB1186376A (en) * 1966-07-16 1970-04-02 Clydesdale Stamping Company Lt Improvements relating to Methods of Manufacturing Articles by Forging and Articles Produced by these Methods
EP0007773A1 (de) * 1978-07-20 1980-02-06 Frank J. Cappiello Halte- und Sperrsystem eines Ohrrings für ein durchstochenes Ohr

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2381183A (en) * 2001-10-27 2003-04-30 Peter Lawton Jewellery for pierced navels

Also Published As

Publication number Publication date
EP0148165A3 (de) 1985-10-16
IL72913A0 (en) 1984-12-31

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Effective date: 19860617

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Inventor name: FEINSOD, BENJAMIN