Polishing tool for finishing optically effective surfaces on spectacle lenses in particular
DCFirst Claim
1. A polishing tool for finishing optically effective surfaces of, in particular, spectacle lenses, comprising a base body, at the outer side of which a processing section is provided and which has at its inner side an interior space, which is bounded by a wall surface and a base surface and is for pushing of the base body onto and detenting and mounting with a mount of complementary construction of a tool spindle and has at its base surface entrainer elements for transmission of torque, with which corresponding entrainer counter-elements at the mount are associated, wherein provided between the wall surface and the mount is a retaining ring which is fixed in an axially positioned annular groove in one of the wall surface and mount and which provides detenting with a corresponding axially positioned counter-groove in the other of the wall surface and mount and sealing of the interior space, wherein the detenting arises during the pushing-on before the entrainer elements come into engagement with the entrainer counter-elements, which mounting engagement of the entrainer counter-elements for transmission of torque from the mount to the base body is achievable only when further pushing-on is carried out under cancellation of the detenting of said retaining ring in said annular groove and sealing occurs between the wall surface and the mount.
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Abstract
The proposed polishing tool has a base body with an open interior space with which the polishing tool can be slidably fitted onto a holder of a tool spindle, initially as far as a latching position. A retaining ring placed in an annular groove of the interior space engages in a counter-groove of the holder. The polishing tool can then be slid further onto the holder under the polishing work pressure, until, under the simultaneous action of torque, driver elements of the base body engage in driver counter-elements of the holder for transmitting rotary movement. At least in the latter relative position between the polishing tool and tool spindle, the retaining ring provides a seal against penetration of the abrasive polishing agent.
24 Citations
23 Claims
- 1. A polishing tool for finishing optically effective surfaces of, in particular, spectacle lenses, comprising a base body, at the outer side of which a processing section is provided and which has at its inner side an interior space, which is bounded by a wall surface and a base surface and is for pushing of the base body onto and detenting and mounting with a mount of complementary construction of a tool spindle and has at its base surface entrainer elements for transmission of torque, with which corresponding entrainer counter-elements at the mount are associated, wherein provided between the wall surface and the mount is a retaining ring which is fixed in an axially positioned annular groove in one of the wall surface and mount and which provides detenting with a corresponding axially positioned counter-groove in the other of the wall surface and mount and sealing of the interior space, wherein the detenting arises during the pushing-on before the entrainer elements come into engagement with the entrainer counter-elements, which mounting engagement of the entrainer counter-elements for transmission of torque from the mount to the base body is achievable only when further pushing-on is carried out under cancellation of the detenting of said retaining ring in said annular groove and sealing occurs between the wall surface and the mount.
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23. A polishing tool for finishing optical effective surfaces of a spectacle lens, said polishing tool comprising:
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a base body having an outer side for mounting a polishing section; said base body having a skirt section and a mounting section within said skirt section being rotationally and drivably engageable with a complementary mounting section of a tool spindle; said skirt section having a sealing section for being sealable against said tool spindle for sealing said respective mounting sections within an interior space defined in part by said skirt section; said skirt section extending away from said polishing section; said sealing section having an encircling groove at an inner periphery of said skirt section and engageable with a sealing gasket and an outer peripheral wall of said tool spindle; and said encircling groove being axially interposed between said mounting section and a distal end of said skirt section and being axially spaced from said mounting section such that said sealing gasket can engage with said encircling groove and a second groove in said outer peripheral wall of said tool spindle for providing a detenting non-driving position of said mounting section of said polishing tool with respect to said complementary mounting section of said tool spindle and having said polishing tool being axially pushable to a non-detented and sealed position on said tool spindle for engaging said respective mounting sections for being rotationally drivable by said spindle.
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Specification