EP3060369B1 - Optical-grade surfacing tool - Google Patents

Optical-grade surfacing tool Download PDF

Info

Publication number
EP3060369B1
EP3060369B1 EP14789277.2A EP14789277A EP3060369B1 EP 3060369 B1 EP3060369 B1 EP 3060369B1 EP 14789277 A EP14789277 A EP 14789277A EP 3060369 B1 EP3060369 B1 EP 3060369B1
Authority
EP
European Patent Office
Prior art keywords
interface
tool according
peripheral wall
end surface
bell housing
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.)
Active
Application number
EP14789277.2A
Other languages
German (de)
French (fr)
Other versions
EP3060369A1 (en
Inventor
Eric Gacoin
Jonathan SAULNY
Jean Stephane
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.)
EssilorLuxottica SA
Original Assignee
Essilor International Compagnie Generale dOptique SA
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 Essilor International Compagnie Generale dOptique SA filed Critical Essilor International Compagnie Generale dOptique SA
Priority to EP14789277.2A priority Critical patent/EP3060369B1/en
Publication of EP3060369A1 publication Critical patent/EP3060369A1/en
Application granted granted Critical
Publication of EP3060369B1 publication Critical patent/EP3060369B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B24B13/02—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor by means of tools with abrading surfaces corresponding in shape with the lenses to be made
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
    • B24D9/08—Circular back-plates for carrying flexible material

Definitions

  • the invention relates to optical quality surfacing for surfaces such as a face of an ophthalmic lens or a camera lens or an instrument for observing distant objects or a face a semiconductor substrate.
  • Surfacing means any operation to modify the state of a previously shaped surface. These include polishing, grinding or etching operations to modify (decrease or increase) the roughness of the surface and / or to reduce the undulation.
  • a tool for surfacing an optical surface comprising: a rigid support having a transverse end surface; an elastically compressible interface secured to the rigid support and having a first end transverse surface, a second end transverse surface and a lateral surface extending from the pe
  • the tool In order to reduce the roughness of the optical surface, the tool is brought into contact with the latter while maintaining sufficient tool pressure on it so that, by deformation of the interface, the pad conforms to the shape of the optical surface. .
  • the optical surface is rotated, its friction against the tool being sufficient to jointly drive the latter in rotation, a variable shift during operation ensures relative movement and scanning.
  • the surfacing operation requires an abrasive that can be contained in the buffer or in the fluid.
  • the elastically compressible interface compensates for the difference in curvature between the end surface of the tool support and the optical surface.
  • the aim of the invention is to provide a surfacing tool which is particularly efficient in terms of minimizing appearance defects.
  • the connecting structure comprises a bell having a main body and a peripheral wall projecting from the periphery of said body and extending to a free end; and said connecting structure comprises a support member between the peripheral wall of the bell and the periphery of the interface; said peripheral wall of the bell being applied against a portion of the lateral surface and / or the first transverse surface of the interface; at least one annular portion of the lateral surface of the interface being free; said first transverse end surface of the interface being on the side and away from the main body.
  • the interface is elastically compressible and the support between the bell and this elastically compressible interface is effected by the periphery of the elastically compressible interface, it ensures a good conformation of the flexible pad to the surface to be worked whatever it is, to allow surfacing of particularly high quality.
  • the invention also proposes a surfacing machine comprising a surfacing tool of optical quality as mentioned above.
  • the tool 10 illustrated on the Figures 1 to 6 comprises a bell 11, an elastically compressible interface 12, a flexible buffer 13 and an elastic return member 14.
  • the tool 10 is generally cylindrical with symmetry of revolution and has an axis of symmetry illustrated on the Figures 1, 2 , 5 and 6 which defines an axial direction.
  • the bell 11 comprises a main body 16, here a flange, and a peripheral wall 17 projecting from the periphery of the main body 16 to a free end 18.
  • the main body 16 has the general shape of a disc oriented transversely to the axial direction; and the peripheral wall 17 is an annular wall extending in the axial direction.
  • the interface 12 has a first end surface 20, a second end surface 21 and a side surface 22 extending from the periphery of the surface 20 to the periphery of the surface 21.
  • the surfaces 20 and 21 extend transversely to the axial direction of the interface 12 and are here planar.
  • the interface 12 and the buffer 13 have the general shape of a disk of the same diameter, with the thickness of the interface 12 which is higher than the thickness of the buffer 13.
  • the interface 12 has a thickness (distance between the surfaces 20 and 21) of between 1 mm and 20 mm.
  • the buffer 13 is applied against and covers the surface 21 of the interface 12.
  • the subjugation between the pad 13 and the interface 12 is done here by gluing over the entire surface 21.
  • the elastic return member 14 is here a star part. As we see on the figure 3 , the elastic return member 14 comprises an annular portion 24, here arranged centrally, and resiliently flexible strips 25 which extend here radially from the annular portion 24.
  • Each lamella 25 extends between a free end 26 and an end 27 attached to the annular portion 24.
  • the elastic return member 14 is flat.
  • the length of the elastic strips 25 is such that the elastic return member 14 has an outer diameter greater than the outer diameter of the peripheral wall 17 of the bell 11.
  • the peripheral wall 17 has openings 29 in each of which is engaged a distal portion of one of the flexible strips 25.
  • the diameter of the interface 12 and the buffer 13 is slightly larger than the internal diameter of the peripheral wall 17 of the bell 11, as can be seen in FIG. figure 1 .
  • the assembly between the assembly formed by the interface 12 and the buffer 13 is made by interlocking the interface 12 in the space delimited laterally by the peripheral wall 17 between its free end 18 and the elastic return member 14.
  • the thickness of the interface 12 is greater than the distance between the free end 18 and the openings 29 and therefore the elastic return member 14 engaged in these openings.
  • the annular portion of the lateral surface 22 of the interface 12 located between the free end 18 of the peripheral wall 17 and the surface 21 is free.
  • the elastic return member 14 is remote from the main body 16. Consequently, the surface 20 of the interface 12, which is against the elastic return member 14, is remote from the main body 16.
  • the portion of the resilient return member 14 located near the peripheral wall 17 of the bell 11 can not approach the main body 16 since it is engaged in the openings 29.
  • the portion of the elastic return member 14 located near the peripheral wall 17 thus forms a thrust abutment between the peripheral wall 17 and the periphery of the interface 12.
  • a mounting member 30 is connected to the main body 16 on the side opposite the side facing the interface 12, that is to say on the side that one sees up on the Figures 1, 2 , 5 and 6 .
  • the mounting member 30 is here a nipple integrally with the bell 11, arranged centrally.
  • this stud is formed a cavity 31 to accommodate the head 32 of a pin 33 of a surfacing machine ( figure 4 ).
  • the head 32 has a spherical portion end shaped like the cavity 31.
  • the assembly between the mounting member 30 and the pin 33 is made by simple snapping, the material surrounding the cavity 31 being able to deform because the spherical portion of the head 32 is housed in the cavity 31.
  • the tool 10 When the head 32 of the pin 33 is engaged in the cavity 31, the tool 10 cooperates in a ball joint with respect to the pin 33.
  • the mounting member 30 is different from a protruding nipple made of material, for example a mounting member attached to the main body 16 and / or projecting from the main body 16.
  • the ophthalmic lens 36 is mounted on a rotatable support (not shown) to drive it in rotation about the X axis as shown by the arrow 37 .
  • the tool 10 is applied against the face 35 with sufficient force for the pad 13 to conform to its shape.
  • the face 35 is watered with a nonabrasive or abrasive watering fluid, depending on whether or not the pad 13 exerts this function.
  • the tool 10 In order to scan the entire face 35, the tool 10 is moved in a reciprocating motion, as shown by the arrow 38.
  • the force applied by the pin 33 on the tool 10, and more precisely on the mounting member 30, is transmitted to the buffer 13 via the bell 11, via the support member formed by the portion of the elastic return member 14 located near the peripheral wall 17 due to the engagement in the openings 29, and via the interface 12.
  • the support between the bell 11 and the interface 12 is effected by the periphery of the interface 12, it is essentially by its periphery that the flexible buffer 13 presses on the surface to be worked, here the face 35 of the ophthalmic lens 36.
  • the surfacing therefore takes place essentially at the periphery of the buffer 13.
  • the interface 12 is elastically compressible and the support between the bell 11 and this interface 12 is effected by the periphery of the interface 12, it ensures a good conformation of the flexible pad 13 to the surface to work whatever it is, to make a removal of matter distributed in the most homogeneous way and to allow a surfacing of particularly high quality.
  • the tool 10 is particularly suitable for working convex surfaces.
  • the tool 10 is generally capable of working surfaces of different curvatures, including concave surfaces.
  • the variant of the elastic return member 14 illustrated on the figure 7 is shaped in the same way, but with a different number of lamellae 25, here twelve lamellae 25.
  • the variant of the elastic return member 14 illustrated on the figure 8 is shaped in a reverse manner, that is to say with the annular portion 24 which is arranged peripherally.
  • each lamella 25 is therefore central and the attached end 27 is therefore peripheral.
  • the annular portion 24 has an outer diameter similar to the inner diameter of the peripheral wall 17 of the bell 11. Tabs 28 project externally of the annular portion 24 to be engaged in the openings 29.
  • the variant of the elastic return member 14 illustrated on the figure 9 is similar to the variant shown on the figure 8 except that there is a different number of lamellae 25, here twelve instead of six.
  • the slats 25 may have a variable thickness, which therefore has a different flexibility.
  • each lamella may be relatively rigid at its free end and relatively flexible at the attached end.
  • the variant of the elastic return member 14 illustrated on the figure 10 is formed by a disk 40 having a central opening 41.
  • the variant of the return member 14 illustrated on the figure 11 is formed by a solid disk 42.
  • the variant of the elastic return member illustrated on the figure 12 is similar to the variant shown on the figure 11 but the solid disc 42 has a radial notch 43 extending from the periphery to a distance from the center.
  • the variant of the elastic return member illustrated on the figure 13 is similar to the variant shown on the figure 12 , except that there is here a plurality of notches 43 of different lengths, with an alternation of long notches and short notches (each short notch is between two long notches).
  • the disc 40 or 42 has an outer diameter corresponding to the inner diameter of the peripheral wall 17 of the bell 11 and the tongues 28 serve to engage the member 14 with the bell 11 by insertion into the openings 29.
  • the elastic return member 14 is curved, with the convex face turned towards the main body 16 ( figure 14 ) or the concave face facing the main body 16 ( figure 15 ).
  • the embodiment illustrated on the figure 14 is particularly suitable for working on highly convex surfaces.
  • the embodiment illustrated on the figure 15 is particularly suitable for working on concave or even particularly concave surfaces.
  • the elastic return member 14, the elastically compressible interface 12 and the flexible buffer 13 are oriented as the main body 16, that is to say transversely to the axial direction.
  • the elastic return member 14, the elastically compressible interface 12 and the flexible buffer 13 are inclined with respect to the main body 16.
  • this inclination is obtained by arranging the openings 29 not at the same distance from the main body 16 but at different distances.
  • the tool 10 is configured to drive the coolant fluid to the working surface, through openings 45 formed in the main body 16, through an opening 46 formed in the interface 12 and through a opening 47 arranged in the buffer 13.
  • the fluid or gel is contained in a deformable envelope.
  • the fluid is for example a compressed gas or a liquid.
  • the elastically compressible interface 12 itself has sufficient elasticity.
  • the elastically compressible interface 12 is for example made of a homogeneous foam of chosen flexibility or else a foam or other material with a gradient of elasticity (greater elasticity on the side of the main body 16).
  • the portion protruding internally from the peripheral wall 17 to form the support member does not delimit a rib 50 but a shoulder 53.
  • the tool 10 does not have an elastic return member.
  • the assembly formed by the elastically compressible interface 12 and the flexible buffer 13 is not fitted into the bell 11: the peripheral wall 17 of the bell 11 is not applied against a part of the lateral surface 22 of the bell 12 but against a portion of the end surface 20 of the interface 12.
  • the lateral surface 22 of the interface 12 is therefore completely free.
  • the support member between the peripheral wall 17 of the bell 11 and the periphery of the interface 12 is formed by the free end 18 of the peripheral wall 17.
  • the fixing between the bell 11 and the interface 12 is done by a bead of adhesive 55.
  • the variant of the tool 10 illustrated on the figure 21 is similar to the variant shown on the figure 20 , except that the bell 11 is shaped differently: the main body 16 is present only in the center of the bell 11 and the peripheral wall 17 is frustoconical.
  • the variant of the tool 10 illustrated on the figure 22 is similar to the variant shown on the figure 19 , except that the bell is consistent differently: the main body 16 is present only in the center of the bell 11 and the peripheral wall 17 is curved.
  • the shoulder 53 can be made by an adhesive joint.
  • the elastic return member is not a separate member of the bell but is formed in particular by the peripheral wall 17 of the bell 11.
  • the peripheral wall 17 has a return 57 directed towards the inside of the bell 11. If a force directed towards the main body 16 is exerted on the return 57, then the peripheral wall 17 comprising the return 57 flexes elastically toward the main body 16, as shown on the figure 23 by the arrows 58.
  • the support member between the peripheral wall 17 and the interface 12 is formed by the return 57.
  • the attachment between the interface 12 and the bell 11 is effected by an adhesive film 59 placed between the surface 20 of the interface 12 and the return 57.
  • the figure 24 shows a bell 11 in which are provided notches 60 to allow (or to help allow) the bell 11 to play directly the role of the elastic return member.
  • the notches 60 subdivide the main body 16 and / or the side wall 17 of the bell 11 or several angular segments.
  • the variant illustrated on the figure 25 is similar to the variant shown on the figure 23 except that the peripheral wall 17 is formed by an annular wall 62 integral with the main body 16 and an insert 63 secured to the annular wall 62, here by means of tabs 64 each engaged in an opening 65 of the wall 62.
  • the attachment between the interface 12 and the bell 11 is effected otherwise than by nesting or gluing, for example by means of clips, buttons or a bayonet mounting.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Surgical Instruments (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Description

DOMAINE DE L'INVENTIONFIELD OF THE INVENTION

L'invention a trait au surfaçage à qualité optique, pour des surfaces telles qu'une face d'un verre ophtalmique ou d'une lentille d'appareil photographique ou d'un instrument destiné à l'observation des objets éloignés ou encore une face d'un substrat semi-conducteur.The invention relates to optical quality surfacing for surfaces such as a face of an ophthalmic lens or a camera lens or an instrument for observing distant objects or a face a semiconductor substrate.

Par surfaçage, on entend toute opération visant à modifier l'état d'une surface préalablement façonnée. Il s'agit notamment d'opérations de polissage, doucissage ou dépolissage visant à modifier (diminuer ou augmenter) la rugosité de la surface et/ou à en diminuer l'ondulation.Surfacing means any operation to modify the state of a previously shaped surface. These include polishing, grinding or etching operations to modify (decrease or increase) the roughness of the surface and / or to reduce the undulation.

ARRIERE-PLAN TECHNOLOGIQUEBACKGROUND

On connaît déjà, notamment par la demande de brevet japonais 2000-317797 , par la demande de brevet français 2 834 662 à laquelle correspond la demande de brevet américain 2005/0101235 , par la demande de brevet français 2 857 610 à laquelle correspond la demande de brevet américain 2006/0154581, par la demande de brevet français 2 918 911 à laquelle correspond la demande de brevet américain 2010/0178858 , par la demande de brevet français 2 935 627 à laquelle correspond la demande de brevet américain 2011/0136416 , par la demande de brevet français 2 935 628 à laquelle correspond la demande de brevet américain 2011/0136415 , par la demande de brevet français 2 953 433 à laquelle correspond la demande de brevet américain 2012/0231713 et par le brevet EP 2 199 016 A2 , l'état de la technique le plus proche à l'invention, un outil de surfaçage d'une surface optique, comportant : un support rigide présentant une surface transversale d'extrémité ; une interface élastiquement compressible assujettie au support rigide et présentant une première surface transversale d'extrémité, une seconde surface transversale d'extrémité et une surface latérale s'étendant de la périphérie de la première surface d'extrémité à la périphérie de la seconde surface d'extrémité, ladite première surface d'extrémité de l'interface étant appliquée contre et recouvrant ladite surface d'extrémité du support rigide ; ainsi qu'un tampon flexible apte à être appliqué contre la surface optique et qui est appliqué contre et recouvre au moins en partie la seconde surface d'extrémité de l'interface à l'opposé et au droit de ladite surface d'extrémité du support rigide, ainsi que, uniquement pour le brevet EP 2 199 016 A2 , un appui sur une partie de la surface latérale.We already know, especially by the Japanese patent application 2000-317797 , by the French patent application 2,834,662 to which corresponds the US patent application 2005/0101235 , by the French patent application 2,857,610 to which corresponds the US patent application 2006/0154581, by the French patent application 2,918,911 to which corresponds the US patent application 2010/0178858 , by the French patent application 2,935,627 to which corresponds the US patent application 2011/0136416 , by the French patent application 2,935,628 to which corresponds the US patent application 2011/0136415 , by the French patent application 2,953,433 to which corresponds the US patent application 2012/0231713 and by the patent EP 2 199 016 A2 , the state of the art closest to the invention, a tool for surfacing an optical surface, comprising: a rigid support having a transverse end surface; an elastically compressible interface secured to the rigid support and having a first end transverse surface, a second end transverse surface and a lateral surface extending from the periphery of the first end surface to the periphery of the second surface; end, said first end surface of the interface being applied against and covering said end surface of the rigid support; as well as a flexible pad that can be applied against the optical surface and is applied against and at least partially covers the second end surface of the interface opposite and to the right of said end surface of the rigid support, and, only for the patent EP 2 199 016 A2 , a support on a part of the lateral surface.

Pour diminuer la rugosité de la surface optique, on amène l'outil au contact de celle-ci en maintenant sur elle une pression suffisante de l'outil pour que, par déformation de l'interface, le tampon épouse la forme de la surface optique.In order to reduce the roughness of the optical surface, the tool is brought into contact with the latter while maintaining sufficient tool pressure on it so that, by deformation of the interface, the pad conforms to the shape of the optical surface. .

Tout en arrosant la surface optique au moyen d'un fluide, on l'entraîne en mouvement relatif par rapport à l'outil de manière à ce qu'elle soit entièrement balayée par ce dernier.While watering the optical surface by means of a fluid, it is driven relatively relative to the tool so that it is fully scanned by the latter.

Généralement, on entraîne en rotation la surface optique, son frottement contre l'outil étant suffisant pour entraîner conjointement celui-ci en rotation, un décentrement variable au cours de l'opération assure le mouvement relatif et le balayage.Generally, the optical surface is rotated, its friction against the tool being sufficient to jointly drive the latter in rotation, a variable shift during operation ensures relative movement and scanning.

L'opération de surfaçage nécessite un abrasif qui peut être contenu dans le tampon ou dans le fluide.The surfacing operation requires an abrasive that can be contained in the buffer or in the fluid.

Au cours du surfaçage, l'interface, élastiquement compressible, permet de compenser la différence de courbure entre la surface d'extrémité du support de l'outil et la surface optique.During surfacing, the elastically compressible interface compensates for the difference in curvature between the end surface of the tool support and the optical surface.

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

L'invention vise à fournir un outil de surfaçage particulièrement performant en matière de minimisation des défauts d'aspect.The aim of the invention is to provide a surfacing tool which is particularly efficient in terms of minimizing appearance defects.

Elle propose à cet effet un outil de surfaçage à qualité optique, comportant :

  • une interface élastiquement compressible comportant une première surface transversale d'extrémité, une seconde surface transversale d'extrémité et une surface latérale s'étendant de la périphérie de la première surface transversale d'extrémité à la périphérie de la seconde surface transversale d'extrémité ;
  • un tampon flexible configuré pour être appliqué contre une surface à travailler, assujetti à l'interface par sa seconde surface transversale d'extrémité ; et
  • une structure de liaison entre ladite interface élastiquement compressible et un organe de montage de l'outil sur une machine de surfaçage ;
caractérisé en ce que ladite structure de liaison est configurée pour former un appui sur une partie de la surface latérale et/ou de la première surface transversale d'extrémité de l'interface, en laissant libre au moins une partie de la surface latérale et au moins une partie centrale de la première surface transversale d'extrémité de l'interface.To this end, it proposes an optical quality surfacing tool, comprising:
  • an elastically compressible interface having a first end transverse surface, a second end transverse surface and a lateral surface extending from the periphery of the first end transverse surface to the periphery of the second end transverse surface;
  • a flexible pad configured to be applied against a work surface, secured to the interface by its second end transverse surface; and
  • a connection structure between said elastically compressible interface and a tool mounting member on a surfacing machine;
characterized in that said connecting structure is configured to form a bearing on a portion of the lateral surface and / or the first transverse end surface of the interface, leaving at least a portion of the lateral surface and minus a central portion of the first transverse end surface of the interface.

Avec une structure de liaison ainsi configurée, on garantit une bonne conformation du tampon flexible à la surface à travailler quelle qu'elle soit, pour permettre un surfaçage de qualité élevée.With a bonding structure thus configured, it ensures a good conformation of the flexible pad to the surface to be worked whatsoever, to allow high quality surfacing.

Selon des caractéristiques avantageuses de configuration de la structure de liaison, celle-ci comporte une cloche comportant un corps principal et une paroi périphérique saillant de la périphérie dudit corps et s'étendant jusqu'à une extrémité libre ; et ladite structure de liaison comporte un organe d'appui entre la paroi périphérique de la cloche et la périphérie de l'interface ; ladite paroi périphérique de la cloche étant appliquée contre une partie de la surface latérale et/ou de la première surface transversale de l'interface ; au moins une portion annulaire de la surface latérale de l'interface étant libre ; ladite première surface transversale d'extrémité de l'interface étant du côté et à distance du corps principal.According to advantageous features of configuration of the connecting structure, the latter comprises a bell having a main body and a peripheral wall projecting from the periphery of said body and extending to a free end; and said connecting structure comprises a support member between the peripheral wall of the bell and the periphery of the interface; said peripheral wall of the bell being applied against a portion of the lateral surface and / or the first transverse surface of the interface; at least one annular portion of the lateral surface of the interface being free; said first transverse end surface of the interface being on the side and away from the main body.

En d'autres termes, avec ces caractéristiques avantageuses, l'invention propose un outil de surfaçage à qualité optique comportant :

  • une interface élastiquement compressible comportant une première surface transversale d'extrémité, une seconde surface transversale d'extrémité et une surface latérale s'étendant de la périphérie de la première surface transversale d'extrémité à la périphérie de la seconde surface transversale d'extrémité ;
  • un tampon flexible configuré pour être appliqué contre une surface à travailler, assujetti à l'interface par sa seconde surface transversale d'extrémité ; et
  • une structure de liaison entre ladite interface élastiquement compressible et un organe de montage de l'outil sur une machine de surfaçage;
caractérisé en ce que ladite structure de liaison comporte une cloche comportant un corps principal et une paroi périphérique saillant de la périphérie dudit corps et s'étendant jusqu'à une extrémité libre ; et ladite structure de liaison comporte un organe d'appui entre la paroi périphérique de la cloche et la périphérie de l'interface ; ladite paroi périphérique de la cloche étant appliquée contre une partie de la surface latérale et/ou de la première surface transversale de l'interface ; au moins une portion annulaire de la surface latérale de l'interface étant libre ; ladite première surface transversale d'extrémité de l'interface étant du côté et à distance du corps principal.In other words, with these advantageous characteristics, the invention proposes an optical quality surfacing tool comprising:
  • an elastically compressible interface having a first end transverse surface, a second end transverse surface and a lateral surface extending from the periphery of the first end transverse surface to the periphery of the second end transverse surface;
  • a flexible pad configured to be applied against a work surface, secured to the interface by its second end transverse surface; and
  • a connection structure between said elastically compressible interface and a tool mounting member on a surfacing machine;
characterized in that said connecting structure comprises a bell having a main body and a peripheral wall projecting from the periphery of said body and extending to a free end; and said connecting structure comprises a support member between the peripheral wall of the bell and the periphery of the interface; said peripheral wall of the bell being applied against a portion of the lateral surface and / or the first transverse surface of the interface; at least one annular portion of the lateral surface of the interface being free; said first transverse end surface of the interface being on the side and away from the main body.

Etant donné que l'interface est élastiquement compressible et que l'appui entre la cloche et cette interface élastiquement compressible s'effectue par la périphérie de l'interface élastiquement compressible, on garantit une bonne conformation du tampon flexible à la surface à travailler quelle qu'elle soit, pour permettre un surfaçage de qualité particulièrement élevé.Since the interface is elastically compressible and the support between the bell and this elastically compressible interface is effected by the periphery of the elastically compressible interface, it ensures a good conformation of the flexible pad to the surface to be worked whatever it is, to allow surfacing of particularly high quality.

On observera que l'outil selon l'invention demeure simple, commode et économique à fabriquer et à utiliser.It will be observed that the tool according to the invention remains simple, convenient and economical to manufacture and use.

Selon des caractéristiques préférées :

  • l'outil comporte en outre un organe de rappel élastique disposé entre la cloche et la première surface transversale d'extrémité de l'interface ;
  • l'organe de rappel élastique est formé par au moins une portion de la paroi périphérique de la cloche ;
  • l'organe de rappel élastique est distinct de la cloche et est engagé dans au moins une ouverture de la paroi périphérique de la cloche pour son montage sur la cloche et pour former ledit organe d'appui ;
  • l'organe de rappel élastique comporte un disque plein ou un disque présentant une ouverture centrale ;
  • l'organe de rappel élastique comporte des lamelles radiales élastiquement flexibles ;
  • l'organe de rappel élastique comporte une portion annulaire; et chaque dite lamelle élastiquement flexible s'étend entre une extrémité libre et une extrémité rattachée à ladite portion annulaire ;
  • ladite portion annulaire est disposée centralement ;
  • ladite portion annulaire est disposée périphériquement ;
  • l'organe d'appui est formé par au moins une portion saillant intérieurement de la paroi périphérique de la cloche ;
  • l'organe de rappel élastique est formé par un fluide ou gel disposé entre le corps principal de la cloche et la première surface transversale d'extrémité de l'interface élastiquement compressible ;
  • ledit organe d'appui est configuré pour que l'interface soit orientée comme ledit corps principal de la cloche ;
  • ledit organe d'appui est configuré pour que l'interface soit inclinée par rapport audit corps principal de la cloche ;
  • ledit tampon flexible, ladite interface élastiquement compressible et ledit corps principal comportent des ouvertures configurées pour conduire un fluide d'arrosage vers la surface à travailler ;
  • une dite ouverture est disposée centralement dans ledit tampon flexible et dans ladite interface élastiquement compressible ;
  • le corps principal et/ou la paroi périphérique de la cloche sont divisés en plusieurs segments angulaires ;
  • la surface latérale et/ou la première surface transversale de l'interface sont fixées à la paroi périphérique de la cloche par emboîtement ou par collage ; et/ou
  • l'interface élastiquement compressible présente une épaisseur entre la première surface transversale d'extrémité et la seconde surface transversale d'extrémité comprise entre 1 mm et 20 mm.
According to preferred characteristics:
  • the tool further comprises an elastic return member disposed between the bell and the first transverse end surface of the interface;
  • the elastic return member is formed by at least a portion of the peripheral wall of the bell;
  • the elastic return member is distinct from the bell and is engaged in at least one opening of the peripheral wall of the bell for mounting on the bell and to form said support member;
  • the elastic return member comprises a solid disk or a disc having a central opening;
  • the elastic return member comprises elastically flexible radial strips;
  • the elastic return member comprises an annular portion; and each said elastically flexible strip extends between a free end and an end attached to said annular portion;
  • said annular portion is centrally disposed;
  • said annular portion is disposed peripherally;
  • the support member is formed by at least one portion protruding internally from the peripheral wall of the bell;
  • the elastic return member is formed by a fluid or gel disposed between the main body of the bell and the first transverse end surface of the elastically compressible interface;
  • said support member is configured so that the interface is oriented as said main body of the bell;
  • said support member is configured so that the interface is inclined with respect to said main body of the bell;
  • said flexible buffer, said resiliently compressible interface and said main body have openings configured to conduct a coolant fluid to the work surface;
  • a said opening is disposed centrally in said flexible buffer and in said elastically compressible interface;
  • the main body and / or the peripheral wall of the bell are divided into a plurality of angular segments;
  • the lateral surface and / or the first transverse surface of the interface are fixed to the peripheral wall of the bell by interlocking or gluing; and or
  • the elastically compressible interface has a thickness between the first transverse end surface and the second end transverse surface of between 1 mm and 20 mm.

L'invention propose, par ailleurs, une machine de surfaçage comprenant un outil de surfaçage de qualité optique tel que précité.The invention also proposes a surfacing machine comprising a surfacing tool of optical quality as mentioned above.

BREVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

L'exposé de l'invention sera maintenant poursuivi par la description détaillée d'exemples de réalisation, donnée ci-après à titre illustratif et non limitatif, en référence aux dessins annexés. Sur ceux-ci :

  • les figures 1 et 2 sont des vues en élévation-coupe d'un outil de surfaçage conforme à l'invention, respectivement en éclaté et à l'état assemblé ;
  • la figure 3 est la vue en plan-coupe repérée par III-III sur la figure 1 ;
  • la figure 4 est une vue schématique en élévation illustrant l'utilisation de l'outil de surfaçage montré sur les figures 1 à 3 pour travailler une surface d'un verre ophtalmique ;
  • les figures 5 et 6 sont des vues semblables à la figure 2, mais montrant en trait interrompu des exemples de conformations prises lors de l'opération de surfaçage illustrée sur la figure 4, respectivement par l'organe de rappel élastique et par le tampon flexible ;
  • les figures 7 à 13 montrent, de la même façon que la figure 3, des variantes de l'organe de rappel élastique ;
  • les figures 14 et 15 montrent, de la même façon que la figure 1, des variantes de l'organe de rappel élastique bombées plutôt que plates ;
  • la figure 16 est une vue semblable à la figure 2 pour une variante dans laquelle l'organe de rappel élastique, l'interface élastiquement compressible et le tampon flexible sont inclinés ;
  • la figure 17 est une vue semblable à la figure 2 pour une variante dans laquelle l'outil de surfaçage est configuré pour conduire un fluide d'arrosage vers la surface à travailler ;
  • la figure 18 est une vue semblable à la figure 1 pour une variante dans laquelle l'organe de rappel élastique est formé par un fluide ou gel disposé entre la cloche et l'interface élastiquement flexible ;
  • la figure 19 est une vue semblable à la figure 2 pour une variante dans laquelle l'outil de surfaçage ne comporte pas d'organe de rappel élastique ;
  • les figures 20 et 21 sont des vues semblables à la figure 2 pour d'autres variantes sans organe de rappel élastique dans lesquelles l'interface élastiquement flexible est fixée à la cloche par collage plutôt que par emboîtement, la cloche de la variante de la figure 21 étant conformée différemment ;
  • la figure 22 est une vue semblable à la figure 2 pour une variante semblable à la variante illustrée sur la figure 19, mais avec la cloche qui est conformée différemment ;
  • la figure 23 est une vue semblable à la figure 2 pour une variante de la cloche conformée différemment et faite dans une matière élastique ;
  • la figure 24 est une vue en plan d'une variante de la cloche dans laquelle la paroi périphérique présente des encoches radiales pour être élastiquement flexible ; et
  • la figure 25 est une vue semblable à la figure 2 pour une variante semblable à la variante illustrée sur la figure 23, mais avec la paroi périphérique de la cloche qui est en deux parties.
The description of the invention will now be continued by the detailed description of exemplary embodiments, given below by way of illustration and without limitation, with reference to the appended drawings. On these:
  • the Figures 1 and 2 are elevation-section views of a surfacing tool according to the invention, respectively exploded and in the assembled state;
  • the figure 3 is the cutaway view marked by III-III on the figure 1 ;
  • the figure 4 is a schematic view in elevation illustrating the use of the surfacing tool shown on the Figures 1 to 3 to work a surface of an ophthalmic lens;
  • the Figures 5 and 6 are views similar to the figure 2 , but showing in broken lines examples of conformations taken during the surfacing operation illustrated on the figure 4 respectively by the elastic return member and the flexible buffer;
  • the Figures 7 to 13 show, in the same way that the figure 3 variants of the elastic return member;
  • the Figures 14 and 15 show, in the same way that the figure 1 variants of the resilient return member bulging rather than flat;
  • the figure 16 is a view similar to the figure 2 for a variant in which the elastic return member, the elastically compressible interface and the flexible buffer are inclined;
  • the figure 17 is a view similar to the figure 2 for a variant in which the surfacing tool is configured to drive a watering fluid to the surface to be worked;
  • the figure 18 is a view similar to the figure 1 for a variant in which the elastic return member is formed by a fluid or gel disposed between the bell and the elastically flexible interface;
  • the figure 19 is a view similar to the figure 2 for a variant in which the surfacing tool has no elastic return member;
  • the Figures 20 and 21 are views similar to the figure 2 for other variants without an elastic return member in which the elastically flexible interface is attached to the bell by gluing rather than by interlocking, the bell of the variant of the figure 21 being shaped differently;
  • the figure 22 is a view similar to the figure 2 for a variant similar to the variant illustrated on the figure 19 but with the bell that is shaped differently;
  • the figure 23 is a view similar to the figure 2 for a variant of the bell shaped differently and made of an elastic material;
  • the figure 24 is a plan view of a variant of the bell in which the peripheral wall has radial notches to be resiliently flexible; and
  • the figure 25 is a view similar to the figure 2 for a variant similar to the variant illustrated on the figure 23 but with the peripheral wall of the bell which is in two parts.

DESCRIPTION DETAILLEE D'UN EXEMPLE DE REALISATIONDETAILED DESCRIPTION OF AN EXEMPLARY EMBODIMENT

L'outil 10 illustré sur les figures 1 à 6 comporte une cloche 11, une interface élastiquement compressible 12, un tampon flexible 13 et un organe de rappel élastique 14.The tool 10 illustrated on the Figures 1 to 6 comprises a bell 11, an elastically compressible interface 12, a flexible buffer 13 and an elastic return member 14.

D'une façon générale, à l'exception de l'organe de rappel élastique 14, l'outil 10 est globalement cylindrique à symétrie de révolution et présente un axe de symétrie illustré sur les figures 1, 2, 5 et 6 qui définit une direction axiale.In general, with the exception of the elastic return member 14, the tool 10 is generally cylindrical with symmetry of revolution and has an axis of symmetry illustrated on the Figures 1, 2 , 5 and 6 which defines an axial direction.

La cloche 11 comporte un corps principal 16, ici un flasque, et une paroi périphérique 17 saillant de la périphérie du corps principal 16 jusqu'à une extrémité libre 18.The bell 11 comprises a main body 16, here a flange, and a peripheral wall 17 projecting from the periphery of the main body 16 to a free end 18.

Ici, le corps principal 16 a la forme générale d'un disque orienté transversalement à la direction axiale ; et la paroi périphérique 17 est une paroi annulaire qui s'étend suivant la direction axiale.Here, the main body 16 has the general shape of a disc oriented transversely to the axial direction; and the peripheral wall 17 is an annular wall extending in the axial direction.

L'interface 12 présente une première surface d'extrémité 20, une seconde surface d'extrémité 21 et une surface latérale 22 s'étendant de la périphérie de la surface 20 à la périphérie de la surface 21.The interface 12 has a first end surface 20, a second end surface 21 and a side surface 22 extending from the periphery of the surface 20 to the periphery of the surface 21.

Les surfaces 20 et 21 s'étendent transversalement à la direction axiale de l'interface 12 et sont ici planes.The surfaces 20 and 21 extend transversely to the axial direction of the interface 12 and are here planar.

En l'absence de contrainte, l'interface 12 et le tampon 13 ont la forme générale d'un disque de même diamètre, avec l'épaisseur de l'interface 12 qui est plus élevé que l'épaisseur du tampon 13.In the absence of stress, the interface 12 and the buffer 13 have the general shape of a disk of the same diameter, with the thickness of the interface 12 which is higher than the thickness of the buffer 13.

Ici, l'interface 12 a une épaisseur (distance entre les surfaces 20 et 21) comprise entre 1 mm et 20 mm.Here, the interface 12 has a thickness (distance between the surfaces 20 and 21) of between 1 mm and 20 mm.

Le tampon 13 est appliqué contre et recouvre la surface 21 de l'interface 12.The buffer 13 is applied against and covers the surface 21 of the interface 12.

L'assujettissement entre le tampon 13 et l'interface 12 se fait ici par collage sur la totalité de la surface 21.The subjugation between the pad 13 and the interface 12 is done here by gluing over the entire surface 21.

L'organe de rappel élastique 14 est ici une pièce étoilée. Comme on le voit sur la figure 3, l'organe de rappel élastique 14 comporte une portion annulaire 24, ici disposée centralement, et des lamelles 25 élastiquement flexibles qui s'étendent ici radialement à partir de la portion annulaire 24.The elastic return member 14 is here a star part. As we see on the figure 3 , the elastic return member 14 comprises an annular portion 24, here arranged centrally, and resiliently flexible strips 25 which extend here radially from the annular portion 24.

Chaque lamelle 25 s'étend entre une extrémité 26 libre et une extrémité 27 rattachée à la portion annulaire 24.Each lamella 25 extends between a free end 26 and an end 27 attached to the annular portion 24.

Comme on le voit bien sur les figures 1 et 2, ici l'organe de rappel élastique 14 est plat.As can be seen from the Figures 1 and 2 here, the elastic return member 14 is flat.

La longueur des lamelles élastiques 25 est telle que l'organe de rappel élastique 14 a un diamètre externe plus grand que le diamètre externe de la paroi périphérique 17 de la cloche 11.The length of the elastic strips 25 is such that the elastic return member 14 has an outer diameter greater than the outer diameter of the peripheral wall 17 of the bell 11.

La paroi périphérique 17 présente des ouvertures 29 dans chacune desquelles est engagée une portion distale de l'une des lamelles flexibles 25.The peripheral wall 17 has openings 29 in each of which is engaged a distal portion of one of the flexible strips 25.

Le montage entre l'organe de rappel élastique 14 et la cloche 11 se fait ainsi par l'engagement des lamelles flexibles 25 dans les ouvertures 29.The assembly between the elastic return member 14 and the bell 11 is thus done by the engagement of the flexible strips 25 in the openings 29.

En l'absence de contrainte le diamètre de l'interface 12 et du tampon 13 est légèrement plus grand que le diamètre interne de la paroi périphérique 17 de la cloche 11, ainsi qu'on le voit bien sur la figure 1.In the absence of stress, the diameter of the interface 12 and the buffer 13 is slightly larger than the internal diameter of the peripheral wall 17 of the bell 11, as can be seen in FIG. figure 1 .

Le montage entre l'ensemble formé par l'interface 12 et le tampon 13 se fait par emboîtement à force de l'interface 12 dans l'espace délimité latéralement par la paroi périphérique 17 entre son extrémité libre 18 et l'organe de rappel élastique 14.The assembly between the assembly formed by the interface 12 and the buffer 13 is made by interlocking the interface 12 in the space delimited laterally by the peripheral wall 17 between its free end 18 and the elastic return member 14.

L'épaisseur de l'interface 12 est plus grande que la distance entre l'extrémité libre 18 et les ouvertures 29 et donc l'organe de rappel élastique 14 engagé dans ces ouvertures.The thickness of the interface 12 is greater than the distance between the free end 18 and the openings 29 and therefore the elastic return member 14 engaged in these openings.

Lorsque l'interface 12 est emboîtée dans la cloche 12, elle s'enfonce dans celle-ci jusqu'à ce que la surface 20 rencontre l'organe de rappel élastique 14.When the interface 12 is nested in the bell 12, it sinks into it until the surface 20 meets the elastic return member 14.

La portion annulaire de la surface latérale 22 de l'interface 12 située entre l'extrémité libre 18 de la paroi périphérique 17 et la surface 21 est libre.The annular portion of the lateral surface 22 of the interface 12 located between the free end 18 of the peripheral wall 17 and the surface 21 is free.

L'organe de rappel élastique 14 est à distance du corps principal 16. Par conséquent, la surface 20 de l'interface 12, qui est contre l'organe de rappel élastique 14, est à distance du corps principal 16.The elastic return member 14 is remote from the main body 16. Consequently, the surface 20 of the interface 12, which is against the elastic return member 14, is remote from the main body 16.

Comme on le voit sur les figures 5 et 6, si l'on exerce sur le tampon 13 un effort dirigé vers le corps principal 16, le tampon 13, l'interface 12 et l'organe de rappel élastique 14 peuvent se déformer, avec l'organe de rappel élastique 14 qui se rapproche du corps principal 16.As we see on the Figures 5 and 6 if a force directed towards the main body 16 is exerted on the pad 13, the pad 13, the interface 12 and the resilient return member 14 can be deformed, with the elastic return member 14 coming closer to each other. of the main body 16.

La portion de l'organe de rappel élastique 14 située à proximité de la paroi périphérique 17 de la cloche 11 ne peut pas se rapprocher du corps principal 16 puisqu'elle est engagée dans les ouvertures 29.The portion of the resilient return member 14 located near the peripheral wall 17 of the bell 11 can not approach the main body 16 since it is engaged in the openings 29.

La portion de l'organe de rappel élastique 14 située à proximité de la paroi périphérique 17 forme ainsi une butée d'enfoncement entre la paroi périphérique 17 et la périphérie de l'interface 12.The portion of the elastic return member 14 located near the peripheral wall 17 thus forms a thrust abutment between the peripheral wall 17 and the periphery of the interface 12.

Pour le montage de l'outil 10 sur une machine de surfaçage, un organe de montage 30 est relié au corps principal 16 du côté opposé au côté que regarde l'interface 12, c'est-à-dire du côté que l'on voit en haut sur les figures 1, 2, 5 et 6.For the mounting of the tool 10 on a surfacing machine, a mounting member 30 is connected to the main body 16 on the side opposite the side facing the interface 12, that is to say on the side that one sees up on the Figures 1, 2 , 5 and 6 .

L'organe de montage 30 est ici un téton venu de matière avec la cloche 11, disposé de façon centrale. Dans ce téton est ménagée une cavité 31 pour accueillir la tête 32 d'une broche 33 d'une machine de surfaçage (figure 4).The mounting member 30 is here a nipple integrally with the bell 11, arranged centrally. In this stud is formed a cavity 31 to accommodate the head 32 of a pin 33 of a surfacing machine ( figure 4 ).

La tête 32 comporte une extrémité en portion de sphère conformée comme la cavité 31.The head 32 has a spherical portion end shaped like the cavity 31.

L'assemblage entre l'organe de montage 30 et la broche 33 se fait par simple encliquetage, la matière entourant la cavité 31 étant capable de se déformer parce que la partie sphérique de la tête 32 se loge dans la cavité 31.The assembly between the mounting member 30 and the pin 33 is made by simple snapping, the material surrounding the cavity 31 being able to deform because the spherical portion of the head 32 is housed in the cavity 31.

Lorsque la tête 32 de la broche 33 est engagée dans la cavité 31, l'outil 10 coopère en liaison rotule par rapport à la broche 33.When the head 32 of the pin 33 is engaged in the cavity 31, the tool 10 cooperates in a ball joint with respect to the pin 33.

En variante, l'organe de montage 30 est différent d'un téton saillant venu de matière, par exemple un organe de montage rapporté sur le corps principal 16 et/ou ne saillant pas par rapport au corps principal 16.Alternatively, the mounting member 30 is different from a protruding nipple made of material, for example a mounting member attached to the main body 16 and / or projecting from the main body 16.

Pour travailler avec l'outil 10 la face 35 d'une lentille ophtalmique 36, la lentille ophtalmique 36 est montée sur un support rotatif (non représenté) pour l'entraîner en rotation autour de l'axe X ainsi que montré par la flèche 37.To work with the tool 10 the face 35 of an ophthalmic lens 36, the ophthalmic lens 36 is mounted on a rotatable support (not shown) to drive it in rotation about the X axis as shown by the arrow 37 .

L'outil 10 est appliqué contre la face 35 avec une force suffisante pour que le tampon 13 épouse sa forme.The tool 10 is applied against the face 35 with sufficient force for the pad 13 to conform to its shape.

Le frottement relatif de la face 35 et du tampon 13 suffit à entraîner en rotation l'outil 10.The relative friction of the face 35 and the buffer 13 is sufficient to rotate the tool 10.

On arrose la face 35 avec un fluide d'arrosage non abrasif ou abrasif, selon que le tampon 13 exerce ou non par lui même cette fonction.The face 35 is watered with a nonabrasive or abrasive watering fluid, depending on whether or not the pad 13 exerts this function.

Afin de balayer la totalité de la face 35, l'outil 10 est déplacé selon un mouvement de va-et-vient, ainsi que montré par la flèche 38.In order to scan the entire face 35, the tool 10 is moved in a reciprocating motion, as shown by the arrow 38.

L'effort appliqué par la broche 33 sur l'outil 10, et plus précisément sur l'organe de montage 30, se transmet au tampon 13 par l'intermédiaire de la cloche 11, par l'intermédiaire de l'organe d'appui formé par la portion de l'organe de rappel élastique 14 située à proximité de la paroi périphérique 17 du fait de l'engagement dans les ouvertures 29, et par l'intermédiaire de l'interface 12.The force applied by the pin 33 on the tool 10, and more precisely on the mounting member 30, is transmitted to the buffer 13 via the bell 11, via the support member formed by the portion of the elastic return member 14 located near the peripheral wall 17 due to the engagement in the openings 29, and via the interface 12.

Etant donné que l'appui entre la cloche 11 et l'interface 12 s'effectue par la périphérie de l'interface 12, c'est essentiellement par sa périphérie que le tampon flexible 13 appuie sur la surface à travailler, ici la face 35 de la lentille ophtalmique 36.Since the support between the bell 11 and the interface 12 is effected by the periphery of the interface 12, it is essentially by its periphery that the flexible buffer 13 presses on the surface to be worked, here the face 35 of the ophthalmic lens 36.

Le surfaçage s'effectue donc essentiellement en périphérie du tampon 13.The surfacing therefore takes place essentially at the periphery of the buffer 13.

Grâce à la capacité de déformation de l'outil 10, expliquée ci-dessus à l'appui des figures 5 et 6, la partie centrale du tampon 13 peut se déformer pour épouser au plus près la surface à travailler.Thanks to the deformation capacity of the tool 10, explained above in support of Figures 5 and 6 , the central portion of the pad 13 can be deformed to fit closer to the surface to be worked.

Plus particulièrement, étant donné que l'interface 12 est élastiquement compressible et que l'appui entre la cloche 11 et cette interface 12 s'effectue par la périphérie de l'interface 12, on garantit une bonne conformation du tampon 13 flexible à la surface à travailler quelle qu'elle soit, pour opérer un enlèvement de matière réparti de la façon la plus homogène et permettre un surfaçage de qualité particulièrement élevée.More particularly, since the interface 12 is elastically compressible and the support between the bell 11 and this interface 12 is effected by the periphery of the interface 12, it ensures a good conformation of the flexible pad 13 to the surface to work whatever it is, to make a removal of matter distributed in the most homogeneous way and to allow a surfacing of particularly high quality.

Du fait de la capacité de l'outil 10 à laisser le tampon 13 se déformer vers l'intérieur (vers le corps principal 16 et l'organe de montage 30), l'outil 10 convient particulièrement bien pour travailler des surfaces convexes.Due to the ability of the tool 10 to allow the pad 13 to deform inwards (towards the main body 16 and the mounting member 30), the tool 10 is particularly suitable for working convex surfaces.

Ainsi qu'expliqué ultérieurement à l'appui des figures 14 et 15, l'outil 10 est d'une façon générale capable de travailler des surfaces de différentes courbures, y compris des surfaces concaves.As explained later in support of the Figures 14 and 15 the tool 10 is generally capable of working surfaces of different curvatures, including concave surfaces.

On notera que l'agencement de l'organe de rappel élastique 14 avec des lamelles 25 s'étendant radialement à partir de la portion annulaire 24 est favorable à la facilité de déformation de la portion centrale.Note that the arrangement of the elastic return member 14 with lamellae 25 extending radially from the annular portion 24 is favorable to the ease of deformation of the central portion.

Dans le mode de réalisation illustré sur la figure 3, il y a six lamelles radiales 25.In the embodiment illustrated on the figure 3 there are six radial lamellae 25.

La variante de l'organe de rappel élastique 14 illustrée sur la figure 7 est conformée de la même façon, mais avec un nombre différent de lamelles 25, ici douze lamelles 25.The variant of the elastic return member 14 illustrated on the figure 7 is shaped in the same way, but with a different number of lamellae 25, here twelve lamellae 25.

La variante de l'organe de rappel élastique 14 illustré sur la figure 8 est conformée de façon inverse, c'est-à-dire avec la portion annulaire 24 qui est disposée périphériquement.The variant of the elastic return member 14 illustrated on the figure 8 is shaped in a reverse manner, that is to say with the annular portion 24 which is arranged peripherally.

L'extrémité libre 26 de chaque lamelle 25 est donc centrale et l'extrémité rattachée 27 est donc périphérique.The free end 26 of each lamella 25 is therefore central and the attached end 27 is therefore peripheral.

La portion annulaire 24 a un diamètre externe semblable au diamètre interne de la paroi périphérique 17 de la cloche 11. Des languettes 28 saillent extérieurement de la portion annulaire 24 pour être engagées dans les ouvertures 29.The annular portion 24 has an outer diameter similar to the inner diameter of the peripheral wall 17 of the bell 11. Tabs 28 project externally of the annular portion 24 to be engaged in the openings 29.

La variante de l'organe de rappel élastique 14 illustré sur la figure 9 est semblable à la variante illustrée sur la figure 8, si ce n'est qu'il y a un nombre différent de lamelles 25, ici douze au lieu de six.The variant of the elastic return member 14 illustrated on the figure 9 is similar to the variant shown on the figure 8 except that there is a different number of lamellae 25, here twelve instead of six.

Par ailleurs, dans une variante de réalisation de l'invention, les lamelles 25 peuvent présenter une épaisseur variable, présentant dès lors une flexibilité différente.Furthermore, in an alternative embodiment of the invention, the slats 25 may have a variable thickness, which therefore has a different flexibility.

Dans un exemple non limitatif, chaque lamelle peut être relativement rigide à son extrémité libre et relativement flexible à l'extrémité rattachée.In a non-limiting example, each lamella may be relatively rigid at its free end and relatively flexible at the attached end.

La variante de l'organe de rappel élastique 14 illustrée sur la figure 10 est formée par un disque 40 présentant une ouverture centrale 41.The variant of the elastic return member 14 illustrated on the figure 10 is formed by a disk 40 having a central opening 41.

La variante de l'organe de rappel 14 illustrée sur la figure 11 est formée par un disque plein 42.The variant of the return member 14 illustrated on the figure 11 is formed by a solid disk 42.

La variante de l'organe de rappel élastique illustrée sur la figure 12 est semblable à la variante illustrée sur la figure 11 mais le disque plein 42 présente une encoche radiale 43 s'étendant de la périphérie jusqu'à une certaine distance du centre.The variant of the elastic return member illustrated on the figure 12 is similar to the variant shown on the figure 11 but the solid disc 42 has a radial notch 43 extending from the periphery to a distance from the center.

La variante de l'organe de rappel élastique illustrée sur la figure 13 est semblable à la variante illustrée sur la figure 12, si ce n'est qu'il y a ici une pluralité d'encoches 43 de longueurs différentes, avec une alternance d' encoches longues et d'encoches courtes (chaque encoche courte est entre deux encoches longues).The variant of the elastic return member illustrated on the figure 13 is similar to the variant shown on the figure 12 , except that there is here a plurality of notches 43 of different lengths, with an alternation of long notches and short notches (each short notch is between two long notches).

Dans chacune des variantes de l'organe de rappel élastique 14 illustré sur les figures 10 à 13, le disque 40 ou 42 a un diamètre externe correspondant au diamètre interne de la paroi périphérique 17 de la cloche 11 et les languettes 28 servent à l'engagement de l'organe 14 avec la cloche 11 par insertion dans les ouvertures 29.In each of the variants of the elastic return member 14 illustrated on the Figures 10 to 13 , the disc 40 or 42 has an outer diameter corresponding to the inner diameter of the peripheral wall 17 of the bell 11 and the tongues 28 serve to engage the member 14 with the bell 11 by insertion into the openings 29.

Les différents exemples de l'organe de rappel élastique 14 décrits jusqu'ici sont tous plats.The various examples of the elastic return member 14 described so far are all flat.

En variante, ainsi que montré sur les figures 14 et 15, l'organe de rappel élastique 14 est bombé, avec la face convexe tournée vers le corps principal 16 (figure 14) ou la face concave tournée vers le corps principal 16 (figure 15).Alternatively, as shown on the Figures 14 and 15 , the elastic return member 14 is curved, with the convex face turned towards the main body 16 ( figure 14 ) or the concave face facing the main body 16 ( figure 15 ).

Le mode de réalisation illustré sur la figure 14 convient particulièrement bien pour travailler des surfaces fortement convexes.The embodiment illustrated on the figure 14 is particularly suitable for working on highly convex surfaces.

Le mode de réalisation illustré sur la figure 15 convient particulièrement bien pour travailler des surfaces concaves, voire particulièrement concaves.The embodiment illustrated on the figure 15 is particularly suitable for working on concave or even particularly concave surfaces.

Dans chacun des exemples de l'outil 10 décrit jusqu'ici, l'organe de rappel élastique 14, l'interface élastiquement compressible 12 et le tampon flexible 13 sont orientés comme le corps principal 16, c'est-à-dire transversalement à la direction axiale. Dans la variante illustrée sur la figure 16, l'organe de rappel élastique 14, l'interface élastiquement compressible 12 et le tampon flexible 13 sont inclinés par rapport au corps principal 16.In each of the examples of the tool 10 described so far, the elastic return member 14, the elastically compressible interface 12 and the flexible buffer 13 are oriented as the main body 16, that is to say transversely to the axial direction. In the variant illustrated on the figure 16 , the elastic return member 14, the elastically compressible interface 12 and the flexible buffer 13 are inclined with respect to the main body 16.

En pratique, cette inclinaison est obtenue en disposant les ouvertures 29 non pas à la même distance du corps principal 16 mais à des distances différentes.In practice, this inclination is obtained by arranging the openings 29 not at the same distance from the main body 16 but at different distances.

Dans la variante illustrée sur la figure 17, l'outil 10 est configuré pour conduire le fluide d'arrosage vers la surface à travailler, grâce à des ouvertures 45 ménagées dans le corps principal 16, grâce à une ouverture 46 ménagée dans l'interface 12 et grâce à une ouverture 47 ménagée dans le tampon 13.In the variant illustrated on the figure 17 , the tool 10 is configured to drive the coolant fluid to the working surface, through openings 45 formed in the main body 16, through an opening 46 formed in the interface 12 and through a opening 47 arranged in the buffer 13.

Dans la variante de l'outil 10 illustrée sur la figure 18, l'organe de rappel élastique 14 est remplacé :

  • d'une part, pour former l'organe d'appui entre la paroi périphérique 17 de la cloche 11 et la périphérie de l'interface 12, par une portion saillant intérieurement de la paroi périphérique 17, ici une nervure annulaire 50 ; et
  • d'autre part, pour former l'organe de rappel élastique proprement dit, par un fluide ou un gel 51 disposé entre le corps principal 16 et la surface 20 de l'interface 12.
In the variant of the tool 10 illustrated on the figure 18 the elastic return member 14 is replaced:
  • on the one hand, to form the support member between the peripheral wall 17 of the bell 11 and the periphery of the interface 12, by a portion protruding internally from the peripheral wall 17, here an annular rib 50; and
  • on the other hand, to form the elastic return member proper, by a fluid or a gel 51 disposed between the main body 16 and the surface 20 of the interface 12.

Dans l'exemple illustré, le fluide ou gel est contenu dans une enveloppe déformable. Le fluide est par exemple un gaz comprimé ou un liquide.In the illustrated example, the fluid or gel is contained in a deformable envelope. The fluid is for example a compressed gas or a liquid.

Dans la variante de l'outil 10 illustrée sur la figure 19, aucun organe de rappel élastique n'est disposé entre la cloche 11 et la surface 20 de l'interface 12.In the variant of the tool 10 illustrated on the figure 19 no elastic return member is disposed between the bell 11 and the surface 20 of the interface 12.

En effet, l'interface élastiquement compressible 12 a par elle même une élasticité suffisante.Indeed, the elastically compressible interface 12 itself has sufficient elasticity.

Dans cet exemple de réalisation, l'interface élastiquement compressible 12 est par exemple faite en une mousse homogène de souplesse choisie ou alors en une mousse ou une autre matière à gradient d'élasticité (élasticité plus importante du côté du corps principal 16).In this exemplary embodiment, the elastically compressible interface 12 is for example made of a homogeneous foam of chosen flexibility or else a foam or other material with a gradient of elasticity (greater elasticity on the side of the main body 16).

Par ailleurs, dans la variante illustrée sur la figure 19, la portion saillant intérieurement de la paroi périphérique 17 pour former l'organe d'appui ne délimite pas une nervure 50 mais un épaulement 53.Moreover, in the variant illustrated on the figure 19 , the portion protruding internally from the peripheral wall 17 to form the support member does not delimit a rib 50 but a shoulder 53.

Dans les variantes de l'outil de surfaçage 10 illustré sur les figures 20, 21 et 22, tout comme dans la variante de la figure 19, l'outil 10 ne comporte pas d'organe de rappel élastique.In the variants of the surfacing tool 10 illustrated on the Figures 20, 21 and 22 just like in the variant of the figure 19 the tool 10 does not have an elastic return member.

Dans les variantes illustrées sur les figures 20 et 21, l'ensemble formé par l'interface élastiquement compressible 12 et le tampon flexible 13 n'est pas emboîté dans la cloche 11 : la paroi périphérique 17 de la cloche 11 n'est pas appliquée contre une partie de la surface latérale 22 de l'interface 12 mais contre une partie de la surface d'extrémité 20 de l'interface 12.In the variants illustrated on the Figures 20 and 21 , the assembly formed by the elastically compressible interface 12 and the flexible buffer 13 is not fitted into the bell 11: the peripheral wall 17 of the bell 11 is not applied against a part of the lateral surface 22 of the bell 12 but against a portion of the end surface 20 of the interface 12.

La surface latérale 22 de l'interface 12 est donc entièrement libre.The lateral surface 22 of the interface 12 is therefore completely free.

L'organe d'appui entre la paroi périphérique 17 de la cloche 11 et la périphérie de l'interface 12 est formé par l'extrémité libre 18 de la paroi périphérique 17.The support member between the peripheral wall 17 of the bell 11 and the periphery of the interface 12 is formed by the free end 18 of the peripheral wall 17.

La fixation entre la cloche 11 et l'interface 12 se fait par un cordon de colle 55.The fixing between the bell 11 and the interface 12 is done by a bead of adhesive 55.

La variante de l'outil 10 illustrée sur la figure 21 est semblable à la variante illustrée sur la figure 20, si ce n'est que la cloche 11 est conformée différemment : le corps principal 16 est présent uniquement au centre de la cloche 11 et la paroi périphérique 17 est tronconique.The variant of the tool 10 illustrated on the figure 21 is similar to the variant shown on the figure 20 , except that the bell 11 is shaped differently: the main body 16 is present only in the center of the bell 11 and the peripheral wall 17 is frustoconical.

La variante de l'outil 10 illustrée sur la figure 22 est semblable à la variante illustrée sur la figure 19, si ce n'est que la cloche est conformée différemment : le corps principal 16 est présent uniquement au centre de la cloche 11 et la paroi périphérique 17 est incurvée.The variant of the tool 10 illustrated on the figure 22 is similar to the variant shown on the figure 19 , except that the bell is consistent differently: the main body 16 is present only in the center of the bell 11 and the peripheral wall 17 is curved.

Dans cette variante de réalisation, l'épaulement 53 peut être réalisé par un joint de colle.In this variant embodiment, the shoulder 53 can be made by an adhesive joint.

Dans les variantes de l'outil 10 illustrées sur les figures 23 et 25, l'organe de rappel élastique n'est pas un organe distinct de la cloche mais est formé notamment par la paroi périphérique 17 de la cloche 11.In the variants of the tool 10 illustrated on the figures 23 and 25 , the elastic return member is not a separate member of the bell but is formed in particular by the peripheral wall 17 of the bell 11.

Dans la variante illustrée sur la figure 23, la paroi périphérique 17 comporte un retour 57 dirigé vers l'intérieur de la cloche 11. Si l'on exerce sur le retour 57 un effort dirigé vers le corps principal 16, alors la paroi périphérique 17 comportant le retour 57 fléchit élastiquement vers le corps principal 16, ainsi que montré sur la figure 23 par les flèches 58.In the variant illustrated on the figure 23 , the peripheral wall 17 has a return 57 directed towards the inside of the bell 11. If a force directed towards the main body 16 is exerted on the return 57, then the peripheral wall 17 comprising the return 57 flexes elastically toward the main body 16, as shown on the figure 23 by the arrows 58.

L'organe d'appui entre la paroi périphérique 17 et l'interface 12 est formé par le retour 57.The support member between the peripheral wall 17 and the interface 12 is formed by the return 57.

La fixation entre l'interface 12 et la cloche 11 s'effectue par un film de colle 59 disposé entre la surface 20 de l'interface 12 et le retour 57.The attachment between the interface 12 and the bell 11 is effected by an adhesive film 59 placed between the surface 20 of the interface 12 and the return 57.

La figure 24 montre une cloche 11 dans laquelle sont ménagées des encoches 60 pour permettre (ou pour contribuer à permettre) à la cloche 11 de jouer directement le rôle de l'organe de rappel élastique. Les encoches 60 subdivisent le corps principal 16 et/ou la paroi latérale 17 de la cloche 11 ou plusieurs segments angulaires.The figure 24 shows a bell 11 in which are provided notches 60 to allow (or to help allow) the bell 11 to play directly the role of the elastic return member. The notches 60 subdivide the main body 16 and / or the side wall 17 of the bell 11 or several angular segments.

La variante illustrée sur la figure 25 est semblable à la variante illustrée sur la figure 23, si ce n'est que la paroi périphérique 17 est formée par une paroi annulaire 62 venue de matière avec le corps principal 16 et par un insert 63 assujetti à la paroi annulaire 62, ici grâce à des languettes 64 chacune engagée dans une ouverture 65 de la paroi 62.The variant illustrated on the figure 25 is similar to the variant shown on the figure 23 except that the peripheral wall 17 is formed by an annular wall 62 integral with the main body 16 and an insert 63 secured to the annular wall 62, here by means of tabs 64 each engaged in an opening 65 of the wall 62.

Dans des variantes non illustrées, la fixation entre l'interface 12 et la cloche 11 s'effectue autrement que par emboîtement ou par collage, par exemple grâce à des clips, des boutons ou un montage en baïonnette.In variants not shown, the attachment between the interface 12 and the bell 11 is effected otherwise than by nesting or gluing, for example by means of clips, buttons or a bayonet mounting.

De nombreuses autres variantes sont possibles en fonction des circonstances, et on rappelle à cet égard que l'invention ne se limite pas aux exemples décrits et représentés, mais comprend toutes les variantes de réalisation dans le cadre des revendications.Many other variants are possible depending on the circumstances, and it is recalled in this regard that the invention is not limited to the examples described and shown, but includes all the variants within the scope of the claims.

Claims (16)

  1. Optical-quality surfacing tool comprising:
    - an elastically compressible interface (12) comprising a first transverse end surface (20), a second transverse end surface (21) and a lateral surface (22) extending from the periphery of the first transverse end surface (20) to the periphery of the second transverse end surface (21);
    - a flexible pad (13) configured to be pressed against a workpiece surface (35), and secured to the interface (12) by its second transverse end surface (21); and
    - a connecting structure connecting said elastically compressible interface (12) and a member (30) for mounting the tool (10) on a surfacing machine (32, 33); said connecting structure is configured to form a bearing surface resting against part of the lateral surface (22) and/or of the first transverse end surface (20) of the interface (12), leaving at least part of the lateral surface (22) and at least a central part of the first transverse end surface (20) of the interface (12) free.
  2. Tool according to Claim 1, characterized in that said connecting structure comprises a bell housing (11) comprising a main body (16) and a peripheral wall (17) projecting from the periphery of said body (16) and extending as far as a free end (18); and said connecting structure comprises a bearing member (14; 50; 53; 18; 57) between the peripheral wall (17) of the bell housing (11) and the periphery of the interface (12); said peripheral wall (17) of the bell housing (11) being pressed against a part of the lateral surface (22) and/or of the first transverse surface (20) of the interface (12); at least an annular portion of the lateral surface (22) of the interface (12) being free; said first transverse end surface (20) of the interface (12) being on the side of and distant from the main body (16).
  3. Tool according to Claim 2, characterized in that it further comprises an elastic return member positioned between the bell housing (11) and the first transverse end surface (20) of the interface (12).
  4. Tool according to Claim 3, characterized in that the elastic return member is formed by at least a portion (57) of the peripheral wall (17) of the bell housing (11).
  5. Tool according to Claim 3, characterized in that the elastic return member (14) is distinct from the bell housing (11) and is engaged in at least one opening (29) in the peripheral wall (17) of the bell housing (11) in order to mount it on the bell housing (11) and form said bearing member.
  6. Tool according to either one of Claims 3 and 5, characterized in that the elastic return member (14) comprises a solid disk (42) or a disk (40) that has a central opening (41).
  7. Tool according to any one of Claims 3 to 5, characterized in that the elastic return member (14) comprises elastically flexible radial fingers (25).
  8. Tool according to Claim 7, characterized in that the elastic return member (14) comprises an annular portion (24); and each said elastically flexible finger (25) extends between a free end (26) and an end (27) that is attached to said annular portion (24).
  9. Tool according to Claim 2, characterized in that the bearing member is formed by at least one portion (50; 53; 57) projecting toward the inside of the peripheral wall (17) of the bell housing (11).
  10. Tool according to Claim 3, characterized in that the elastic return member is formed by a fluid or gel (51) placed between the main body (16) of the bell housing (11) and the first transverse end surface (20) of the elastically compressible interface (12).
  11. Tool according to any one of Claims 2 to 10, characterized in that said bearing member (14; 50; 53; 18; 57) is configured such that the interface (12) is oriented the same as said main body (16) of the bell housing (11).
  12. Tool according to any one of Claims 2 to 11, characterized in that said flexible pad (13), said elastically compressible interface (12) and said main body (16) have openings (45, 46, 47) configured to convey a cutting fluid toward the workpiece surface (35).
  13. Tool according to Claim 2, characterized in that the main body (16) and/or the peripheral wall (17) of the bell housing (11) are divided into a plurality of angular segments.
  14. Tool according to Claim 2, characterized in that the lateral surface (22) and/or the first transverse end surface (20) of the interface (12) are fixed to the peripheral wall (17) of the bell housing (11) by push-fitting or bonding.
  15. Tool according to Claim 2, characterized in that the elastically compressible interface (12) has a thickness of between 1 mm and 20 mm between the first transverse end surface (20) and the second transverse end surface (21).
  16. Surfacing machine comprising an optical-quality surfacing tool according to one of Claims 1 to 15.
EP14789277.2A 2013-10-25 2014-10-24 Optical-grade surfacing tool Active EP3060369B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14789277.2A EP3060369B1 (en) 2013-10-25 2014-10-24 Optical-grade surfacing tool

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13306477 2013-10-25
EP14789277.2A EP3060369B1 (en) 2013-10-25 2014-10-24 Optical-grade surfacing tool
PCT/EP2014/072906 WO2015059299A1 (en) 2013-10-25 2014-10-24 Surfacing tool for optical purposes

Publications (2)

Publication Number Publication Date
EP3060369A1 EP3060369A1 (en) 2016-08-31
EP3060369B1 true EP3060369B1 (en) 2019-08-21

Family

ID=49584670

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14789277.2A Active EP3060369B1 (en) 2013-10-25 2014-10-24 Optical-grade surfacing tool

Country Status (5)

Country Link
US (1) US10189139B2 (en)
EP (1) EP3060369B1 (en)
CN (1) CN105658376B (en)
BR (1) BR112016008853B1 (en)
WO (1) WO2015059299A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL229192B1 (en) * 2015-11-27 2018-06-29 Rog Stanislaw Przed Pentar Dish-type flap wheel
CN110253439B (en) * 2019-07-26 2023-04-18 浙江工业大学 Gradient elastic polishing device with function of uniformly removing materials in domain
DE102019213388A1 (en) * 2019-09-04 2021-03-04 Robert Bosch Gmbh Adapter device for a machine tool, machine tool and tool system

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2189472A (en) * 1937-09-27 1940-02-06 Edward G Peterson Buffing device
JP2834662B2 (en) 1993-12-27 1998-12-09 大同メタル工業株式会社 Multilayer plain bearing material and method of manufacturing the same
US5944586A (en) * 1997-05-09 1999-08-31 Meguiar's Inc. Apparatus and method for cleaning and finishing
JP3787457B2 (en) 1999-05-10 2006-06-21 キヤノン株式会社 Polishing tool
JP3673682B2 (en) * 1999-09-07 2005-07-20 キヤノン株式会社 Polishing tool
DE10026936A1 (en) * 2000-05-30 2001-12-06 Hilti Ag Grinding wheel
JP2002172550A (en) * 2000-12-06 2002-06-18 Nikon Corp Polishing device, polishing method and workpiece obtained with use of the device or method
ATE433826T1 (en) 2002-01-09 2009-07-15 Hoya Corp GRINDING TOOL
FR2834662B1 (en) * 2002-01-16 2004-05-14 Essilor Int TOOL FOR SURFACING AN OPTICAL SURFACE
WO2004087371A1 (en) * 2003-03-31 2004-10-14 Fujitsu Limited Machining method and machining device
FR2857610B1 (en) 2003-07-16 2006-03-17 Essilor Int TOOL FOR SURFACING AN OPTICAL SURFACE
FR2918911B1 (en) 2007-07-16 2009-10-16 Essilor Int SURFACE TOOL WITH OPTICAL QUALITY
CN101342672B (en) * 2008-08-21 2010-06-02 友达光电股份有限公司 Grinding device and combination method thereof
FR2935628B1 (en) 2008-09-10 2011-10-14 Essilor Int SURFACE TOOL WITH OPTICAL QUALITY
FR2935627B1 (en) 2008-09-10 2010-09-03 Essilor Int SURFACE TOOL WITH OPTICAL QUALITY
DE102008061267A1 (en) * 2008-12-10 2010-06-24 Schneider Gmbh & Co. Kg Polishing device with rotary feedthrough
DE202009018907U1 (en) * 2009-08-12 2014-05-15 Satisloh Ag Flexible polishing tool for fine machining of optically effective surfaces on in particular spectacle lenses
FR2953433B1 (en) 2009-12-08 2012-02-10 Essilor Int SURFACE TOOL WITH OPTICAL QUALITY
US8585470B2 (en) * 2010-09-22 2013-11-19 Black & Decker Inc. Wearable backing for an abrasive flap disk
CN102794718B (en) * 2012-07-30 2014-12-17 中国人民解放军国防科学技术大学 Flexible passive adaptation type fairing disc and flexible sandwich layer thereof and method for operating flexible passive adaptation type fairing discs

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
CN105658376A (en) 2016-06-08
US20160288287A1 (en) 2016-10-06
CN105658376B (en) 2020-05-26
BR112016008853A2 (en) 2017-08-01
EP3060369A1 (en) 2016-08-31
BR112016008853B1 (en) 2022-10-04
BR112016008853A8 (en) 2018-08-14
WO2015059299A1 (en) 2015-04-30
US10189139B2 (en) 2019-01-29

Similar Documents

Publication Publication Date Title
CA2607030C (en) Tool for surface treatment of an optical surface
EP1465749B9 (en) Tool for surface treatment of an optical surface
EP3060369B1 (en) Optical-grade surfacing tool
EP2337652B1 (en) Optical-grade surfacing tool
EP2170554B1 (en) Optical grade surfacing device
EP1644160B1 (en) Optical surface-finishing tool
EP1600653B1 (en) Guiding spring for friction elements and disc brake comprising the same
FR2935628A1 (en) SURFACE TOOL WITH OPTICAL QUALITY
FR2994119A1 (en) SYSTEM HAVING A HANDLE DEVICE AND A FIXING DEVICE FOR A PORTABLE MACHINE TOOL
EP2509744B1 (en) Optical-grade surfacing tool
EP3551376A1 (en) Optical-grade surfacing tool
EP1066919B1 (en) Finishing tool for optical surface, especially for optical lens
EP3912539B1 (en) Articulated elbow for a device for cleaning a swimming pool
CH705114B9 (en) Fastening device of a stamp in a timepiece.
FR2812931A1 (en) Mobile telephone car dashboard support mechanism having two domed section rotating around and attached dashboard/mobile phone with screw puller partially deforming/position holding.
FR2593861A1 (en) Retention device, especially for fastening microphone capsules
CH707344A2 (en) Landing shock and timepiece including such a bearing.
EP4184254A1 (en) Watch case comprising a lock
CH717514B1 (en) Disengageable movement device and movable flange.
EP2745887B1 (en) Boot binding on sports equipment

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20160511

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ESSILOR INTERNATIONAL

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20190116

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

GRAL Information related to payment of fee for publishing/printing deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR3

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

INTC Intention to grant announced (deleted)
GRAR Information related to intention to grant a patent recorded

Free format text: ORIGINAL CODE: EPIDOSNIGR71

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

INTG Intention to grant announced

Effective date: 20190716

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602014052216

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1169162

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190915

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190821

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191121

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191223

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191122

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191221

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1169162

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190821

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200224

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602014052216

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG2D Information on lapse in contracting state deleted

Ref country code: IS

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191031

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191031

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191024

26N No opposition filed

Effective date: 20200603

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20191031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191024

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20141024

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190821

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230525

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20231027

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20231023

Year of fee payment: 10

Ref country code: FR

Payment date: 20231025

Year of fee payment: 10

Ref country code: DE

Payment date: 20231027

Year of fee payment: 10