EP0082322A2 - Appareil pour le centrage des verres de lunettes et pour la fixation d'un organe de maintien sur les verres - Google Patents

Appareil pour le centrage des verres de lunettes et pour la fixation d'un organe de maintien sur les verres Download PDF

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Publication number
EP0082322A2
EP0082322A2 EP82110758A EP82110758A EP0082322A2 EP 0082322 A2 EP0082322 A2 EP 0082322A2 EP 82110758 A EP82110758 A EP 82110758A EP 82110758 A EP82110758 A EP 82110758A EP 0082322 A2 EP0082322 A2 EP 0082322A2
Authority
EP
European Patent Office
Prior art keywords
sleeve
pin
slot
guide
guide column
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.)
Granted
Application number
EP82110758A
Other languages
German (de)
English (en)
Other versions
EP0082322B1 (fr
EP0082322A3 (en
Inventor
Fritz Kötting
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
Priority claimed from DE19813150967 external-priority patent/DE3150967C2/de
Priority claimed from DE19823218241 external-priority patent/DE3218241C2/de
Application filed by Wernicke and Co GmbH filed Critical Wernicke and Co GmbH
Publication of EP0082322A2 publication Critical patent/EP0082322A2/fr
Publication of EP0082322A3 publication Critical patent/EP0082322A3/de
Application granted granted Critical
Publication of EP0082322B1 publication Critical patent/EP0082322B1/fr
Expired 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
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/005—Blocking means, chucks or the like; Alignment devices
    • B24B13/0055—Positioning of lenses; Marking of lenses

Definitions

  • the invention relates to a device of the type mentioned in the preamble of the main claim.
  • DE-GM 80 31 865.6 z. B. is a device for centering glasses and for attaching a holding part on the glasses with a support bearing the glasses and a height-adjustable and pivotable support arm for the holding part to be attached (block or suction), the support arm under the action of an arm in his the upper or lower end position of the pushing or pulling spring.
  • a central guide column is used, around which the support arm can be pivoted.
  • the pivotable arm cannot be lowered exactly vertically onto the glass, since the height-adjustable and pivotable sleeve or sleeve carrying the arm is guided with play in the direction of rotation, ie in the sleeve circumferential direction. Any angular deviation of the arm, however, due to the transmission ratio of the Distance between the holding part on the swivel arm and the guide column on the one hand to the distance between the guide part of the swivel arm and the guide column on the other hand errors in the attachment of the holding part to the glass arise.
  • the object of the invention to eliminate this disadvantage and to be able to lower the holding part exactly vertically on a predetermined straight line on the spectacle lens with simple means without great constructional expenditure in terms of time and labor, so that the holding part obtains a desired exact position on the spectacle lens , with the help of which the spectacle lens can be inserted into an edge grinding machine and the circumferential and facet grinding can be created on the periphery of the spectacles.
  • the play-free lowering of the sleeve having the support arm should also be able to be performed by a motor with an adjustable force.
  • the invention is based on the idea that when the holding part and the associated vertically displaceable and rotatable sleeve is lowered, the latter is given a torque by means of which the sleeve receives constant contact with a pin arranged on the guide column during its downward movement. When the sleeve is pressed down against the spring pressure, the sleeve also receives With the help of a pin and an inclined oblong hole, the mentioned rotary movement to cancel the play of the sleeve.
  • the base frame 1 of the device consists essentially of two parts, the housing part 2 carrying the spectacle lens and the part carrying the guide column to be described later 3, which are interconnected.
  • the part 2 of the base frame has in its interior a light source 4, above which a transparent cover 5 is arranged, through which the light from the light source 4 can radiate upwards.
  • Rod-shaped supports 7, preferably provided in a triangular arrangement, are provided on the cover 5 with rubber caps 6, so that the inside of the spectacle lens can be placed on the caps 6 and displaced on all sides in order to achieve the desired decentration.
  • the spectacle lens can also be rotated to bring a near part or the cylinder axis into the desired position.
  • Part 3 of the base frame 1 has an intermediate floor 8 with a bore 9 through which the peg-shaped end 10 of the vertical guide column 11 projects.
  • the guide column 11 With the help of the shoulder 12 and a nut 13, the guide column 11 is held non-rotatably in its position.
  • the end 14 of a guide pin 15 is inserted into a bore 16 and held there at approximately its middle height.
  • the upper section of the guide column 11 is surrounded by an intermediate sleeve 17 which is only displaceable in height on the guide column 11.
  • an arm 21 is rotatably arranged, which carries at its end an optical system 22, which allows the spectacle lens on the rod-shaped supports 7 to be observed from above.
  • the intermediate sleeve 17 has a longitudinal slot 23 through which the guide pin 15 of the guide column 11 protrudes, so that the intermediate sleeve 17 is guided vertically on the guide column 11 but is not rotatable.
  • the longitudinal slot 23 extends, as can be seen from FIGS. 1, 8 and 9, over the lower section of the intermediate sleeve 17th
  • the intermediate sleeve 17 is enclosed by a sleeve 24 which is rotatable and longitudinally displaceable relative to the sleeve 17.
  • this sleeve has in its lower section, as shown in FIGS. 4 to 6, a right-angled slot 25 with a vertical section 26 lying in the longitudinal direction of the sleeve 24 and a right-angled section 27 in the circumferential direction of the sleeve.
  • At the free end of the horizontal, circumferential section 27 there is a downward recess 28.
  • the guide pin 15 of the guide column 11 projects with its outer end 29 into the rectangular slot 25 such that the pin 15 extends lengthwise slot 23 of the intermediate sleeve 17 passes through and protrudes into the angled slot 25 of the sleeve 24.
  • an elongated hole 30 attaches, which has an inclination ⁇ relative to the horizontal cross-sectional plane of the sleeve 24 (FIG. 4) and which has an upper leading edge 31 for one Pin 32 forms, the inner end of which is held by the sleeve 17 in a bore 33.
  • a cylindrical outer part 34 is non-rotatably connected, to which the swivel arm 35 is fastened, which at its head part 36 can hold the holding part at 37 which is to be pressed onto the top of the spectacle lens resting on the supports 7.
  • a compression spring 39 is arranged, which strives to push the sleeve 24 upwards.
  • the upper portion of the spring 39 surrounds the lower region 40 of the intermediate sleeve 17 when it assumes its downwardly extended position relative to the sleeve 24, the pin 32 in the position 32 t in the inclined slot 31 and the guide pin 15 in the position 15 'in Fig. 4 take.
  • the length a of the section 27 of the rectangular slot 25 measured in radians corresponds to the projected arc length b of the oblique slot 30 and determines the size of the pivoting movement of the arm 35 via the angle ⁇ relative to the fixed arm 21 with the optical system 22.
  • the spring 39 presses the sleeve 24 with the swivel arm 35 attached to it into the upper starting position.
  • the intermediate sleeve 17 is rotated in relation to the column 11 in its uppermost position and the sleeve 24 in relation to it in such a way that the pin 32 has the position 32 "in the elongated hole 30, the pin 15 taking the position 15" in the recess 28 (FIG 4).
  • the swivel arm 35 has its position shown in FIGS. 2 and 3 pivoted out and raised relative to the arm 21. If pressure is now exerted on the button 20 in the direction of the arrow 41 (FIG.
  • the intermediate sleeve 17 is moved downward in the sleeve 24 and the sleeve 24 is rotated in the process, since the pin 32 slides in the slot 30 until the Pins 32 have reached position 32 'and pin 15 has reached position 15'.
  • the arm 35 then stands over the part 3. Following the further application of pressure on the button 20, the pin 15 slides into the slot 23 of the sleeve 17 and in the section 26 of the rectangular slot 25 into the position 15 '''.
  • the head part 36 of the arm 35 is pressed onto the spectacle lens.
  • the pin 32 is at the start of the lowering of the sleeve 24 and the head part 36 in the position 32 and the pin 15 in the position 15 '.
  • the pin 32 is pressed against the upper guide edge 31 with the result that the sleeve 24 receives a tendency or moment to rotate relative to the sleeve 17 (Fig. 9, Arrows P and F).
  • the arm 35 is fixedly connected to the sleeve 24 via a support ring 42, which is surrounded by parts 43, 44 above and below the ring 42.
  • the intermediate sleeve 17 is only longitudinally displaceable due to the pin 15 relative to the guide column 11, the sleeve 24, on the other hand, is rotatable and longitudinally displaceable with the pin 15 in the sections 26 and 27 of the slot 25 of the guide column 11 and the intermediate sleeve is rotatable and longitudinally displaceable due to the elongated hole 30 and the pin 32 relative to the sleeve 24.
  • the device according to FIGS. 10-17 has the guide column 11, the lower threaded end 51 of which is in turn held non-rotatably in the base frame.
  • the radial guide pin 15, which engages in the sleeve 24 with the diameter D, projects outward approximately at the middle height of the cylindrical guide column 11.
  • the lower end of the guide column 11 has a radial bearing 52.
  • the parts 24 to 27 and 35 are formed to 37 correspond to those in FIGS. 1 to 9.
  • the lower end of the guide column 24 carries a radially outwardly directed pin 53 on the side opposite the vertical section 26 of the rectangular slot 25.
  • the sleeve 24 is rotatable in an outer sleeve 54 and guided on the inner wall 55 in the longitudinal direction.
  • a ring gear 56 is arranged, in which a drive part of a transmission of a clutch or a motor engages in such a way that the outer sleeve 54 can be rotated by this motor according to speed and force helically wound slot 57, which extends through approximately 360 ° in the sleeve 54 and into which the pin 53 of the sleeve 24 engages.
  • the mode of operation of the device in the embodiment according to FIGS. 10 to 17 is as follows.
  • the sleeve 24 is opposite the guide column 11 in a position in which the pin 15 is located at the closed end of the horizontal section 27 of the rectangular slot 25.
  • the pin 53 abuts the upper closed end of the helical slot 57, the sleeve 24 is fully extended and the lower end 58 of the sleeve 24 is e.g. in the upper region of the guide slot 57.
  • This position of the parts is achieved in that the outer sleeve 54 has been rotated in the direction of arrow P until the two pins 15 and 53 have reached the positions described. In these positions, the pivot arm 35 with the head part 36 is in its highest position and is in the pivoted-out position, i.e. at an angle of 90 ° to the side of the lens support part.
  • the outer sleeve 54 is rotated with the aid of the ring gear 56 in the opposite direction to the arrow P (in the direction of the arrow I in FIG. 8). 15 at the upper end of the slot 54.
  • the pin 15 slides on the horizontal section 27 of the rectangular slot 25 into the position shown in solid line in FIG. 16 at the transition of the section 27 into the vertical section 26 of the slot 25.
  • the pivoting movement of the sleeve 24 has ended, which means that the pivoting arm 35 with the holding part 36 has reached the level of the glasses.
  • the pin 15 slides, as in the embodiment according to FIGS. 1 to 9, on the edge 26a of the vertical section 26 of the rectangular slot 25, ie it becomes a torque is exerted on the guide sleeve 24 in a manner which guarantees a constant contact of the edge 26 a with the fixed pin 15 of the guide column 11. This is done by turning the outer sleeve 54 in the direction of arrow I in FIG Pin 53 of the sleeve 24 is guided on the upper edge 59 of the slot 57.
  • the oblique position of the tangent 60 at the point of contact results in a horizontal component 61 and a vertical component 62 as a result.
  • the horizontal component 60 tries to take the bush 24 in the same direction (see arrow K in FIG. 17) and thus the bush 24 one To give rotational movement in the direction of arrow M in Fig. 16. But with that the Kan Te 26a brought into constant contact with the fixed pin 15 and thus guarantees the play-free lowering of the sleeve 24 even with a motor drive and adjustable speed and placement force of the holding part.
  • FIGS. 10 to 17 takes into account that the lens blanks of minus lenses have a strong rim, but a thin middle area, while plus correction lenses, conversely, have a middle, thicker area and a thin rim section.
  • the stronger the correction lens the more significant the differences between the middle area of the lens blank and its edge section.
  • the lowering of the holding part with an adjustable speed and driving force that is independent of the subjective force of the operator and dependent on the type and strength of the spectacle lenses is therefore of great importance.
  • 10 to 17 offers not only a motor-driven lowering of the holding part 35, but also the possibility of adjusting the motor movement according to force and speed in such a way that it corresponds to the above requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Eyeglasses (AREA)
EP82110758A 1981-12-23 1982-11-22 Appareil pour le centrage des verres de lunettes et pour la fixation d'un organe de maintien sur les verres Expired EP0082322B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3150967 1981-12-23
DE19813150967 DE3150967C2 (de) 1981-12-23 1981-12-23 Gerät zum Zentrieren von Brillengläsern und zum Befestigen eines Halteteils auf den Gläsern
DE19823218241 DE3218241C2 (de) 1982-05-14 1982-05-14 Gerät zum Zentrieren von Brillengläsern
DE3218241 1982-05-14

Publications (3)

Publication Number Publication Date
EP0082322A2 true EP0082322A2 (fr) 1983-06-29
EP0082322A3 EP0082322A3 (en) 1984-12-12
EP0082322B1 EP0082322B1 (fr) 1987-06-24

Family

ID=25798217

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82110758A Expired EP0082322B1 (fr) 1981-12-23 1982-11-22 Appareil pour le centrage des verres de lunettes et pour la fixation d'un organe de maintien sur les verres

Country Status (6)

Country Link
US (1) US4543752A (fr)
EP (1) EP0082322B1 (fr)
BR (1) BR8207419A (fr)
CA (1) CA1209164A (fr)
DE (1) DE3276625D1 (fr)
ES (1) ES517684A0 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2608492A1 (fr) * 1986-12-23 1988-06-24 Essilor Int Dispositif de glantage pour lentille ophtalmique et appareil de centrage comportant un tel dispositif de glantage
EP0420754A1 (fr) * 1989-09-29 1991-04-03 ESSILOR INTERNATIONAL Compagnie Générale d'Optique Ensemble de commande pour élément mobile, en particulier pour dispositif de glantage
WO2016058676A1 (fr) * 2014-10-16 2016-04-21 Satisloh Ag Dispositif de blocage de pièces, en particulier des verres de lunettes, pour leur traitement et/ou revêtement
CN109834545A (zh) * 2019-03-15 2019-06-04 中山市旌旭光学有限公司 光学镜片自动加工一体机
CN111230737A (zh) * 2020-02-05 2020-06-05 汤继芬 一种基于机械加工工件提升避免卡住的提升机构
CN112139909A (zh) * 2020-09-27 2020-12-29 广州图宇科技有限公司 一种光学镜片打磨夹具移动转向机构

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8410341D0 (en) * 1984-04-19 1984-05-31 Coopervision Optics Blocking machines
FR2652528A1 (fr) * 1989-09-29 1991-04-05 Essilor Int Dispositif de glantage.
FR2668410B1 (fr) * 1990-10-25 1993-01-22 Essilor Int Dispositif de glantage a bras de glantage verrouillable.
US5425665A (en) * 1992-12-09 1995-06-20 National Optronics, Inc. Optical lens blocker and method
US5498200A (en) * 1994-08-12 1996-03-12 Wernicke & Co. Gmbh Device for parallex-free centering of a blank for a glass lens for spectacles and for providing markings and/or attaching a holder before inserting the blank into a grinding machine for blanks for glass lenses
DE19505524C2 (de) * 1995-02-18 1996-12-19 Wernicke & Co Gmbh Vorrichtung zum Zentrieren eines Brillenglasrohlings und Anbringen eines Halteteils auf einer optischen Oberfläche des Brillenglasrohlings
JP3966696B2 (ja) * 2001-03-26 2007-08-29 株式会社ニデック カップ取付け装置
US7749051B2 (en) * 2002-06-28 2010-07-06 Carl Zeiss Smt Ag Method and apparatus for aligning optical elements
KR100477761B1 (ko) * 2002-12-03 2005-03-21 주식회사 휴비츠 렌즈 블록킹 장치
US10279751B2 (en) * 2017-07-07 2019-05-07 Scott L. Hintz Adjustable carrier system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE36894C (de) * H. besson und E. N. kent in London, Victoria Park Apparat zum Festhalten von Glasgegenständen beim Schleifen und Poliren
GB1054495A (fr) * 1963-12-18 1967-11-01
CH449185A (de) * 1965-02-04 1967-12-31 Univis Inc Verfahren und Vorrichtung zur Erzeugung von halbfertigen Brillengläsern
DE2705794A1 (de) * 1976-02-17 1977-08-18 Rogers & Clarke Mfg Uebergabevorrichtung
DE2747401A1 (de) * 1976-10-23 1978-04-27 Proptic Vorrichtung zum vorbereiten von brillenglaesern vor dem einpassen in eine brillenfassung und/oder vor dem facettieren
FR2384588A1 (fr) * 1977-03-25 1978-10-20 Wernicke & Co Gmbh Procede et dispositif pour fixer de maniere centree ou decentree un organe aspirateur, un bloc metallique ou une feuille adhesive sur un verre brut de lunettes
DE8031865U1 (de) * 1980-11-29 1981-03-26 Wernicke & Co GmbH, 40231 Düsseldorf Gerät zum Zentrieren von Brillengläsern und zum Befestigen von Halteteilen auf den Gläsern

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293291A (en) * 1940-05-29 1942-08-18 Gaspari & Co Inc J Lens grinding machine
GB666179A (en) * 1949-05-31 1952-02-06 American Optical Corp Improvements in or relating to devices for blocking lenses, discs, and like articles
FR2079496A5 (fr) * 1970-02-03 1971-11-12 Lunetiers Ste
DE2058651A1 (de) * 1970-11-28 1972-06-08 Wernicke & Co Kg Einrichtung zum Zentrieren von Brillenglaesern fuer das Einschleifen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE36894C (de) * H. besson und E. N. kent in London, Victoria Park Apparat zum Festhalten von Glasgegenständen beim Schleifen und Poliren
GB1054495A (fr) * 1963-12-18 1967-11-01
CH449185A (de) * 1965-02-04 1967-12-31 Univis Inc Verfahren und Vorrichtung zur Erzeugung von halbfertigen Brillengläsern
DE2705794A1 (de) * 1976-02-17 1977-08-18 Rogers & Clarke Mfg Uebergabevorrichtung
DE2747401A1 (de) * 1976-10-23 1978-04-27 Proptic Vorrichtung zum vorbereiten von brillenglaesern vor dem einpassen in eine brillenfassung und/oder vor dem facettieren
FR2384588A1 (fr) * 1977-03-25 1978-10-20 Wernicke & Co Gmbh Procede et dispositif pour fixer de maniere centree ou decentree un organe aspirateur, un bloc metallique ou une feuille adhesive sur un verre brut de lunettes
DE8031865U1 (de) * 1980-11-29 1981-03-26 Wernicke & Co GmbH, 40231 Düsseldorf Gerät zum Zentrieren von Brillengläsern und zum Befestigen von Halteteilen auf den Gläsern

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2608492A1 (fr) * 1986-12-23 1988-06-24 Essilor Int Dispositif de glantage pour lentille ophtalmique et appareil de centrage comportant un tel dispositif de glantage
EP0420754A1 (fr) * 1989-09-29 1991-04-03 ESSILOR INTERNATIONAL Compagnie Générale d'Optique Ensemble de commande pour élément mobile, en particulier pour dispositif de glantage
FR2652661A1 (fr) * 1989-09-29 1991-04-05 Essilor Int Ensemble de commande pour element mobile, en particulier pour dispositif de glantage.
WO2016058676A1 (fr) * 2014-10-16 2016-04-21 Satisloh Ag Dispositif de blocage de pièces, en particulier des verres de lunettes, pour leur traitement et/ou revêtement
CN109834545A (zh) * 2019-03-15 2019-06-04 中山市旌旭光学有限公司 光学镜片自动加工一体机
CN109834545B (zh) * 2019-03-15 2024-01-02 中山市旌旭光学有限公司 光学镜片自动加工一体机
CN111230737A (zh) * 2020-02-05 2020-06-05 汤继芬 一种基于机械加工工件提升避免卡住的提升机构
CN111230737B (zh) * 2020-02-05 2021-08-13 王长华 一种基于机械加工工件提升避免卡住的提升机构
CN112139909A (zh) * 2020-09-27 2020-12-29 广州图宇科技有限公司 一种光学镜片打磨夹具移动转向机构

Also Published As

Publication number Publication date
ES8308087A1 (es) 1983-08-16
BR8207419A (pt) 1983-10-18
US4543752A (en) 1985-10-01
ES517684A0 (es) 1983-08-16
EP0082322B1 (fr) 1987-06-24
CA1209164A (fr) 1986-08-05
EP0082322A3 (en) 1984-12-12
DE3276625D1 (en) 1987-07-30

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