EP0245726B1 - Dispositif pour l'usinage du bord d'une lentille ophtalmique - Google Patents

Dispositif pour l'usinage du bord d'une lentille ophtalmique Download PDF

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Publication number
EP0245726B1
EP0245726B1 EP87106371A EP87106371A EP0245726B1 EP 0245726 B1 EP0245726 B1 EP 0245726B1 EP 87106371 A EP87106371 A EP 87106371A EP 87106371 A EP87106371 A EP 87106371A EP 0245726 B1 EP0245726 B1 EP 0245726B1
Authority
EP
European Patent Office
Prior art keywords
housing
bulge
motor
arm
milling cutter
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
EP87106371A
Other languages
German (de)
English (en)
Other versions
EP0245726A2 (fr
EP0245726A3 (en
Inventor
Günter Barwasser
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.)
Wernicke and Co GmbH
Original Assignee
Wernicke and Co GmbH
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 Wernicke and Co GmbH filed Critical Wernicke and Co GmbH
Publication of EP0245726A2 publication Critical patent/EP0245726A2/fr
Publication of EP0245726A3 publication Critical patent/EP0245726A3/de
Application granted granted Critical
Publication of EP0245726B1 publication Critical patent/EP0245726B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B24B9/146—Accessories, e.g. lens mounting devices
    • 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
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/30392—Milling with means to protect operative or machine [e.g., guard, safety device, etc.]
    • 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
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/304144—Means to trim edge

Definitions

  • the invention relates to a device for processing the edge of a spectacle lens with two horizontal half-shafts holding the spectacle lens between them and with a rotating edge processing tool driven by a motor, which is arranged in a stationary housing provided with a pivotable cover, in contrast to the tool and Motor can be adjusted in two horizontal coordinates.
  • US-OS-3446943 discloses a device according to the preamble of claim 1.
  • US-A-3 087 285 discloses an apparatus for machining a lens rim, in which the machining tool is a milling cutter.
  • the spectacle lens held between two horizontal half-waves can be brought into its working position on the milling cutter and removed from it by moving the device part holding the spectacle lens with the aid of a parallelogram linkage relative to the stationary milling cutter.
  • a housing protecting the milling cutter against unintentional contact or another safety device is not disclosed, as is the milling cutter itself, which is immovably mounted in a stationary manner.
  • the object of the invention is to provide a high-performance edge processing machine for spectacle lenses, in which, above all, the safety of the operator is guaranteed. This is to be achieved with structurally simple means that do not disturb the workflow.
  • the advantage that can be achieved with the device according to the invention is that the user is protected against damage and injuries to the trailing cutter after the milling process has ended and the cover has been opened before the cutter has come to a standstill.
  • security options against such damage and injury e.g. the opening flap of the housing could only be opened when the milling cutter has come to a standstill.
  • this safety measure is often prevented by the fact that the housing can be opened when the milling cutter is still rotating.
  • the device according to the invention essentially has the housing 1 and the motor part 2. Both parts are arranged together on a base plate G (Fig. 2).
  • the housing 1 has an essentially cubic shape and shows the two side walls 3, 4 and the front wall 5 facing the user and the rear wall 6 adjacent to the motor part 2.
  • the upper wall of the housing 1 is formed by a cover 8 which is pivotably arranged at 7 and can be opened and closed in the direction of the arrow P (FIG. 2).
  • the rear wall 6 facing the motor 23 has an initially vertical section 9, which is adjoined by an inclined section 10, which is continued in a section 11.
  • the rear wall 6 can also have any other training.
  • a bulge 13 is provided between the two rear wall sections 10, 11 in one vertical half of the housing 1 and approximately halfway up the same. This consists of an upper wall 14, a lower wall 15 and a rear wall 16. This bulge 13 has a certain size, which is explained in more detail in connection with the milling cutter described below as a machining tool and is approximately in the vertical longitudinal center plane of the housing located side open, however closed at the level of the side wall 4.
  • the second vertical half of the housing 1 has at the level of the bulge 13 on the rear wall 6, an opening 17, which has at least a height that corresponds to the vertical width of the cutter arm of the milling cutter, described below, so that this arm through the opening 17 in the Can protrude inside the housing 1 and is adjustable there in the horizontal direction.
  • the opening 17 is delimited upwards and downwards by the upper edge 18 and the lower edge 19.
  • the two half-shafts 21, 22 protrude through the two side walls 3, 4 and hold the spectacle lens B (FIGS. 2 and 3) between their adjacent ends in a known manner, the edge of which has to be machined.
  • the motor part 2 of the device shows a drive motor 23 on a support part 24, which may have the configuration according to FIG. 1 or according to FIG. 2, which is located horizontally and has a rectangular shape.
  • the first-mentioned section carries a shaft 28 which is located parallel to the motor shaft 29, carries the milling cutter 30 at its free end and over the belt or the cord 29a is driven by the shaft 29.
  • These parts have the size that allows the milling cutter to be able to fully enter the bulge 13 when not in use.
  • the configuration and arrangement of the arm 25, the milling cutter 30 and the bulge 13 is also such that the milling cutter can perform the necessary movements in two coordinate directions in the horizontal plane in relation to the spectacle lens.
  • the support part 24 carrying the motor 23 is adjustable in the manner of a cross slide in known guides 31, 32 in the two horizontal coordinate directions mentioned.
  • Such cross slide arrangements are known in spectacle lens edge grinding machines.
  • the motor 23 with the arm 25 and the milling cutter 30 arranged thereon can be moved such that the milling cutter can be moved from the machining position 30 into the non-use position 30 ′ in the bulge 13 and vice versa (FIG. 2 and 3).
  • the pivotable cover 8 is connected to a device (not shown), which can be mechanical or electrical and is known to the person skilled in the art, in such a way that the cover 8 can only be opened when the motor 23 has returned to the bulge and the milling cutter 30 was moved into its position 30 '. It is now essential that the motor 23 and the high-speed milling cutter 30 can still run without the operator being damaged when the cover 8 is opened.
  • the bulge 13 preferably has a hinge 33 for a flap 34 in front of the bulge 13.
  • This flap can be moved into its open or closed position depending on the movement of the arm 25, i.e. the flap can be pivoted up into position 34 so that it does not impede the machining process of milling cutter 30 when milling cutter 30 is extended from the bulge, but on the other hand assumes its position 34 'when milling cutter 30 is retracted into bulging 13 (position 30') and thus covers the milling cutter, which can run in the bulge.

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)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Milling Processes (AREA)

Claims (9)

1. Dispositif d'usinage du bord d'un verre de lunettes comportant deux demi-arbres (21, 22) horizontaux maintenant le verre entre eux et un outil d'usinage du bord (30) rotatif, entraîné par un moteur (23), qui est disposé dans un boîtier fixe (1) pourvu d'un couvercle basculant (8), caractérisé en ce que l'outil d'usinage est une fraise (30) qui peut être réglée au moyen de son moteur (23) selon deux directions de coordonnées horizontales par rapport aux demi-arbres (21, 22) maintenant le verre et peut se déplacer dans un enfoncement (13) du boîtier (1) protégeant entièrement l'utilisateur contre des dommages ou des blessures dues à la fraise (30) lorsque le couvercle est ouvert, et sortir de celui-ci horizontalement afin de reprendre sa position de travail, et en ce que le dispositif présente un agencement qui empêche l'ouverture du couvercle (8) si la fraise ne s'est pas retirée dans l'enfoncement.
2. Dispositif selon la revendication 1, caractérisé en ce que l'outil (30) est disposé flottant sur un bras (25) relié au moteur (23).
3. Dispositif selon les revendications 1, caractérisé en ce que le renfoncement (13) s'étend sur ou à peu près sur la moitié de la largeur du boîtier (1 ).
4. Dispositif selon la revendication 1 et l'une des revendications 2 et 3, caractérisé en ce que le renfoncement (13) présente une section carrée ou rectangulaire, s'étend parallèlement à l'arbre du moteur et est prévu à mi-hauteur ou à peu près du boîtier.
5. Dispositif selon la revendication 1 et l'une des revendications 2 à 4, caractérisé en ce que le renfoncement (13) peut être obturé au moyen d'un volet (34) coulissant ou basculant du côté voisin des demi-arbres (21, 22).
6. Dispositif selon la revendication 5, caractérisé en ce que le volet (34) du renfoncement (13) est relié pour mouvement par une tringlerie, des leviers ou analogue au couvercle (8) du boîtier (1 ).
7. Dispositif selon la revendication 1 et l'une des revendications 2 à 6, caractérisé en ce que le prolongement axial du renfoncement (13), la paroi arrière (6) du boîtier (1) présente une ouverture (17) pour le passage du bras de la fraise (25), dans laquelle le bras (25) peut se déplacer selon deux de coordonnées.
8. Dispositif selon la revendication 1 et l'une des revendications 2 à 6, caractérisé en ce que le renfoncement (13) est ouvert vers le côté situé vers l'ouverture de passage et fermé à hauteur d'une paroi latérale (4) du boîtier.
9. Dispositif selon la revendication 1 et l'une des revendications 2 à 8, caractérisé en ce que le moteur (23) est disposé sur un chariot à deux axes et qu'il est prévu entre lui et le boîtier (1) une protection flexible (36) recouvrant le bras (25) ainsi que l'ouverture (17) du boîtier (1) de passage du bras (25).
EP87106371A 1986-05-14 1987-04-30 Dispositif pour l'usinage du bord d'une lentille ophtalmique Expired - Lifetime EP0245726B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8613032U DE8613032U1 (de) 1986-05-14 1986-05-14 Vorrichtung zum Bearbeiten des Randes eines Brillenglases
DE8613032U 1986-05-14

Publications (3)

Publication Number Publication Date
EP0245726A2 EP0245726A2 (fr) 1987-11-19
EP0245726A3 EP0245726A3 (en) 1988-02-10
EP0245726B1 true EP0245726B1 (fr) 1990-10-03

Family

ID=6794590

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87106371A Expired - Lifetime EP0245726B1 (fr) 1986-05-14 1987-04-30 Dispositif pour l'usinage du bord d'une lentille ophtalmique

Country Status (4)

Country Link
US (1) US4772160A (fr)
EP (1) EP0245726B1 (fr)
JP (1) JPS62292354A (fr)
DE (2) DE8613032U1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5947103A (en) * 1998-01-05 1999-09-07 Saccon; Lorenzo Stone tile finishing system
ES2304353T3 (es) * 1999-08-06 2008-10-16 Hoya Corporation Dispositivo de fabricacion de lentes y metodo de fabricacion de lentes.
FR2843903A1 (fr) * 2002-08-30 2004-03-05 Briot Int Appareil de meulage de lentilles ophtalmiques
US7448161B2 (en) * 2004-05-07 2008-11-11 Detlef Taylor Device for supporting a plant on a gravesite memorial

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3087285A (en) * 1960-04-09 1963-04-30 Lissac Georges Machine for shaping the edges of spectacle glasses
US3332172A (en) * 1964-11-16 1967-07-25 A I T Machine Co Inc Automatic edger
DE8216675U1 (de) * 1982-06-09 1982-09-09 Wernicke & Co GmbH, 4000 Düsseldorf Brillenglasrandschleifmaschine
FR2553323B1 (fr) * 1983-10-18 1986-07-25 Essilor Int Procede et machine pour le biseautage ou rainurage d'une lentille ophtalmique
FR2557000B1 (fr) * 1983-12-23 1987-08-07 Essilor Int Poste de meulage pour machine a meuler, notamment pour le biseautage ou le rainurage d'une lentille ophtalmique
US4656995A (en) * 1985-05-24 1987-04-14 University Of Florida Surgical apparatus for contouring implants

Also Published As

Publication number Publication date
JPS62292354A (ja) 1987-12-19
DE3765306D1 (de) 1990-11-08
DE8613032U1 (de) 1986-08-14
US4772160A (en) 1988-09-20
EP0245726A2 (fr) 1987-11-19
EP0245726A3 (en) 1988-02-10

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