Classifications

• • G—PHYSICS
  • G02—OPTICS
  • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
  • G02C5/00—Constructions of non-optical parts
  • G02C5/22—Hinges
  • G02C5/2272—Hinges without well-defined pivot axis
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
  • B29D12/00—Producing frames
  • B29D12/02—Spectacle frames
• • G—PHYSICS
  • G02—OPTICS
  • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
  • G02C5/00—Constructions of non-optical parts
  • G02C5/14—Side-members
  • G02C5/16—Side-members resilient or with resilient parts
• • G—PHYSICS
  • G02—OPTICS
  • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
  • G02C5/00—Constructions of non-optical parts
  • G02C5/14—Side-members
  • G02C5/18—Side-members reinforced
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
  • Y10T428/2913—Rod, strand, filament or fiber
  • Y10T428/2933—Coated or with bond, impregnation or core
  • Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]

Definitions

• the present invention relates, in general, to a filiform element of the type comprising a flexible metal core to be coated with a flexible elastomer comfort and / or decor.
• a major difficulty encountered in the realization of this type of branches lies precisely in the coating of a metal part by a flexible elastomer because the latter does not adhere to the metal, usually stainless steel.
• Another difficulty lies in the centering of the metal core which must be located at the heart of the elastomer during molding, during this operation, the elastomer being in the soft state.
• the object of the present invention is to remedy these various disadvantages and to this end filamentary element, in particular glasses branch, of the type comprising a flexible metal core, coated with a flexible elastomer of comfort and / or decoration, characterized in that its structure is composed of a plurality of rigid plastic rings, arranged fixed around predetermined areas of the flexible metal core to constitute as many intermediate mechanical attachment points of the flexible elastomer with respect to the core, the section of the rings being inscribed in that of the surrounding elastomer.
• the invention also relates to the features which will become apparent in the course of the description which follows, and which should be considered in isolation or in all their possible technical combinations.
• FIG. 1 represents a view from above, in section, of a portion of spectacles equipped with lateral branches obtained according to the invention.
• FIG. 2 is a view from above of the metal core of a branch according to FIG.
• FIG. 3 is a plan view of the metal core of the branch according to FIG. 2, equipped with hooking rings of the flexible elastomer to be overmolded.
• Figure 4 is a view according to Figures 2 and 3, after overmolding of the elastomer.
• FIG. 5 is a view of a section of the branch, on an enlarged scale, along the line VV of FIG. 4.
• the glasses generally designated in FIG. 1, consist of an optical facade 2 constituted by glasses connected to one another in the center, and at their outer end to branches 3 by means of tenons 10.
• the branches 3 consist of a metal core 4, at least partially flexible, covered with a sleeve 5 made by molding a flexible elastomer comfort and / or decor.
• the structure of the filiform element or branch 3 is composed of a plurality of rings 6 of rigid plastics, fixedly fixed around predetermined zones of the flexible metal core 4 to constitute as many points of attachment intermediate mechanics of the flexible elastomer 5 with respect to the core 4, the section of the rings
• the section of the rings 6 is symmetrical both in the vertical direction XX 'and in the horizontal direction YY', of so as to constitute a centering member of the flexible elastomer 5 with respect to the metal core 4, during an injection-molding operation of the first on the second.
• each of the rings 6 consists of a central core 7 surrounding the metal core 4, of smaller section than that of the elastomer 5 to be received during the injection operation thereof, said core 7 being bristling with at least four substantially conical studs 8 regularly distributed around the core 7 along two axes XX '-YY' perpendicular to each other and whose vertices 8a are inscribed in the section of the elastomer 5, so as to what said rings do not constitute so many plugs during the injection operation of the elastomer.
• the pads 8 may be of any shape and that they could be made in the same alignment for the pads located on the axis XX 'or on the axis YY', but also be shifted between them for molding facilities.
• the invention also relates to the process for obtaining the filiform element or branch 1 which has just been described. This process is remarkable by the following steps:
• the point deformations 9 of the metal core 4 are obtained by crushing on either side of the core 4, such as to cause a punctual narrowing thereof in one direction, and an enlargement in another direction perpendicular to the first, to constitute as many points of attachment of the rings 6.

Landscapes

• Physics & Mathematics (AREA)
• Health & Medical Sciences (AREA)
• General Physics & Mathematics (AREA)
• Ophthalmology & Optometry (AREA)
• Optics & Photonics (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Injection Moulding Of Plastics Or The Like (AREA)
• Eyeglasses (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=37075931

Family Applications (1)

Country Status (8)

Families Citing this family (9)

Family Cites Families (12)

• 2006
  • 2006-04-18 FR FR0603591A patent/FR2899981B1/fr not_active Expired - Fee Related
• 2007
  • 2007-01-17 JP JP2009505924A patent/JP4934192B2/ja not_active Expired - Fee Related
  • 2007-01-17 WO PCT/FR2007/000097 patent/WO2007118942A1/fr active Application Filing
  • 2007-01-17 CA CA2648238A patent/CA2648238C/fr active Active
  • 2007-01-17 US US12/296,941 patent/US7862167B2/en active Active
  • 2007-01-17 CN CN2007800136828A patent/CN101421662B/zh not_active Expired - Fee Related
  • 2007-01-17 EP EP07730832A patent/EP2008148A1/fr not_active Withdrawn
  • 2007-01-17 KR KR1020087028061A patent/KR101257978B1/ko not_active IP Right Cessation

Non-Patent Citations (1)

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