EP0692338A2 - Appareil à couper des lentilles additionnelles polarisées et/ou colorées pour des lunettes - Google Patents

Appareil à couper des lentilles additionnelles polarisées et/ou colorées pour des lunettes Download PDF

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Publication number
EP0692338A2
EP0692338A2 EP95830268A EP95830268A EP0692338A2 EP 0692338 A2 EP0692338 A2 EP 0692338A2 EP 95830268 A EP95830268 A EP 95830268A EP 95830268 A EP95830268 A EP 95830268A EP 0692338 A2 EP0692338 A2 EP 0692338A2
Authority
EP
European Patent Office
Prior art keywords
frame
cutting
bearing shoulder
cutting tool
bearing
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Withdrawn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
EP95830268A
Other languages
German (de)
English (en)
Other versions
EP0692338A3 (fr
Inventor
Luciano Zagato
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
Publication of EP0692338A2 publication Critical patent/EP0692338A2/fr
Publication of EP0692338A3 publication Critical patent/EP0692338A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B24B9/14—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms

Definitions

  • the present invention relates to an apparatus for cutting additional lenses, either coloured and/or polarized, to be assembled on spectacles.
  • spectacles including either coloured and/or polarized lenses.
  • these additional lenses can be easily held in pockets, purses and the like.
  • the above mentioned additional lenses are made by starting from a standard-size lens which is cut, by using suitable cutting pantographs, so as to fit the contour or profile of the frame thereon they must be assembled.
  • the cutting pantographs provided for making the above mentioned additional lenses require that a suitable working bench be used, which must have a suitable size for properly supporting the cutting pantograph, as well as to facilitate the use thereof.
  • the additional lenses must be cut with a comparatively high accuracy, since a shape largely different from that of the spectacles frame, in addition to being antiaesthetic, can be moreover dangerous for the user.
  • the aim of the present invention is to solve the above mentioned problems, by providing an apparatus for cutting additional lenses, either coloured and/or polarized, provided for being assembled on view-lens spectacles frames, which apparatus has a very reduced size and can be easily operated by unskilled personnel.
  • a main object of the present invention is to provide a lens cutting apparatus which can cut additional lenses perfectly fitting to the shape of the view-lens spectacles.
  • Another object of the present invention is to provide such a lens cutting apparatus which is very competitive from a mere economic standpoint.
  • Yet another object of the present invention is to provide such an additional lens cutting apparatus which is very reliable and safe in operation.
  • an apparatus for cutting either coloured and/or polarized additional lenses, to be mounted on view-lens spectacles characterized in that said apparatus comprises a supporting construction, having a bearing shoulder for bearing thereon the outer contour of a spectacles frame, supporting view lenses, a cutting tool being provided, associated with said supporting construction and arranged near said bearing shoulder, on an opposite side from said frame bearing side.
  • the cutting tool in particular, can be controllably driven in order to progressively cut that portion of the additional lens, associated with the frame, projecting from said frame, and overlaying the bearing shoulder in the direction of the cutting tool, while said frame is driven with respect to said bearing shoulder so as to cause said bearing shoulder to follow the outer contour of said frame.
  • the additional lens cutting apparatus which has been generally indicated by the reference number 1, comprises a supporting construction 2, which is preferably constituted by a base 3 with a vertical extension 4 on the top of which is connected, removably, an envelope 5.
  • the envelope or shell 5 defines a bearing shoulder 7, for bearing the contour or profile of the view-lens spectacles frame 7, for which the additional lenses 8 must be made.
  • a cutting tool 9 located near the shoulder 6, on the opposite side thereof from the side bearing the frame 7, which tool can be controllably driven so as to progressively cut the additional lens 8, as preliminarily mounted on the frame 7, and projecting by the portion thereof overhanging from the frame 7, beyond the shoulder 6, in the direction of the cutting tool 9.
  • the envelope or shell 5 has a substantially cylindrical shape, with a top portion 5a having a diameter smaller than that of the bottom portion thereof.
  • the side surface of the portion 5a of the envelope or shell 5 defines the shoulder 6, for the outer contour of the frame 7 and, on the side surface of the top portion 5a of the envelope or casing 5, is provided a slot 10, therethrough is introduced, into the inside of the casing 5, that portion of the additional lens 8 projecting from the contour of the frame 7, so that the projecting portion is cut or removed by the cutting tool 9.
  • the cutting tool 9 comprises a milling implement, arranged with its axis in a vertical direction, inside the casing 5, and being driven by a known electric motor, not shown for simplicity, held in the extension 4 of the base 3.
  • the cutting end 9a of the cutting tool 9 is of substantially cone-shape and the cutting elements 12 helically extend on the surface of the cone so that the cutting chips deriving from the cutting of the additional lens, are caused to fall along the cutting tool 9 inside the casing 5.
  • the latter is connected to the top portion of the base 3, by means of easily removable screws 13, and is preferably made of a transparent material, so as to allow the operator to easily control or monitor the cutting operation performed inside the casing 5.
  • the electric motor driving the cutting tool 9 is power supplied through an electric cable 11, entering the base 3 and, on the base 3, is provided an energizing push-button 15.
  • the base 3 can also be provided with a clamping element 16, in order to connect the apparatus to a working panel 17.
  • the apparatus according to the present invention will operate as follows.
  • the additional lenses are provided with a small weight frame 18 and are associated, by the frame 7, with the view-lens spectacles.
  • the frame 7 is abutted by its outer contour against the shoulder 6, so as to cause that portion of the additional lens 8 projecting from the outer contour of the frame 7, to enter the slot 10.
  • the frame 7 is driven so as to hold it adhering to the shoulder 6, and so as to cause the shoulder 6 to follow the outer contour of the frame 7.
  • This displacement of the frame 7 will bring the cutting tool 9 to perform the cutting of that portion of the additional lens 8 projecting from the frame 7, according to a cutting line, reproducing the outer configuration of said frame.
  • the additional lenses will be cut in a very accurate manner, with a configuration perfectly mating that of the view-lens spectacle frame, on which the additional lenses must be assembled.
  • an additional lens cutting apparatus which has a very reduced size, and which allows to cut additional lenses, either coloured and/or polarized, to be mounted on view-lens spectacles, in a very reduced time and without the need of using skilled personnel.
  • the used materials, as well as the contingent size and shapes can be any, depending on requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Eyeglasses (AREA)
EP95830268A 1994-07-14 1995-06-26 Appareil à couper des lentilles additionnelles polarisées et/ou colorées pour des lunettes Withdrawn EP0692338A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI940508U 1994-07-14
ITMI940508 IT233864Y1 (it) 1994-07-14 1994-07-14 Apparecchiatura per il taglio di lenti aggiuntive,colorate e/o polarizzate,da montare su occhiali con lenti da vista

Publications (2)

Publication Number Publication Date
EP0692338A2 true EP0692338A2 (fr) 1996-01-17
EP0692338A3 EP0692338A3 (fr) 1996-04-10

Family

ID=11368253

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95830268A Withdrawn EP0692338A3 (fr) 1994-07-14 1995-06-26 Appareil à couper des lentilles additionnelles polarisées et/ou colorées pour des lunettes

Country Status (2)

Country Link
EP (1) EP0692338A3 (fr)
IT (1) IT233864Y1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1074559B (it) * 1976-11-08 1985-04-20 Paolini Pasqualino Bisellatrice diamantata manuale per la lavorazione di lenti organiche e minerali
DE3222233A1 (de) * 1982-06-12 1983-12-15 Wernicke & Co GmbH, 4000 Düsseldorf Brillenglasrandschleifmaschine, insbesondere handschleifmaschine
CA1227922A (fr) * 1984-06-18 1987-10-13 Georges Zoueki Dispositif polyvalent pour le percage, la gravure et le fraisage des verres d'optique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Also Published As

Publication number Publication date
ITMI940508U1 (it) 1996-01-14
EP0692338A3 (fr) 1996-04-10
ITMI940508V0 (it) 1994-07-14
IT233864Y1 (it) 2000-02-10

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