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US 4,810,139 AGranted
Quick-change over-spindle adapter
AssigneeNO-MA Engineering Incorporated
InventorDonald J. Regan
Life of this patent
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AssigneeNO-MA Engineering Incorporated
InventorDonald J. Regan
Estimating the term…
An over-spindle quick-change assembly for releasably securing a tool holding adapter at an operative position with respect to a power rotatable shank spindle comprises a cylindrical sleeve sleeved over the tool holding end of the spindle. A collar rotatable on the sleeve has a threaded portion engageable with a nut on the adapter for screwing the nut and adapter to the operative position, whereat confronting annular surfaces of the nut and spindle end engage each other in sealing relationship. The sleeve is prevented from relative movement on the spindle by a set screw screwed radially into the spindle shank and having a reduced diameter extension confined within a radial hole in the sleeve. The threaded portion of the set screw is dimensioned to prevent its entry into the radial sleeve hole. The collar is retained against axial movement relative to the sleeve by a ring resiliently expandable and contractible radially and having inner and outer circumferential portions confined within confronting grooves in the sleeve and collar respectively.
An over-spindle quick-change assembly for releasably securing tool holding means at an operative position with respect to a rotatable power driven shank spindle, said assembly comprising a sleeve adapted to be sleeved over one end of said spindle and having an outer cylindrical surface, means for securing said sleeve against movement with respect to said spindle, a collar having a cylindrical inner surface rotatable coaxially on said sleeve and also having a screw threaded portion for engaging screw threads of a tool holding adapter means and moving the latter to and from an operative position with respect to said spindle, and means for securing said collar against axial movement relative to said sleeve.
An over-spindle quick-change assembly for detachably securing a tool holding adapter to a power driven rotatable spindle, said assembly comprising a shank spindle having an endwise opening adapter receiving recess at one end, a sleeve adapted to be sleeved over said one end of said spindle and having a cylindrical outer surface, means for securing said sleeve against relative movement with respect to said spindle, a collar having a cylindrical inner surface rotatably mounted on said cylindrical outer surface of said sleeve, means for preventing axial movement of said collar relative to said sleeve, said collar also having a screw threaded portion for engaging screw threads of said tool holding adapter means and moving the latter to and from an operative position within said recess upon rotation of said collar.
Dependencies are inferred from the claim text.