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US3986302: Device for fitting a grinding wheel onto a grinding wheel spindle

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Filing Information

Inventor(s) Giuseppe Biardi ·
Assignee(s) Norton Company ·
Attorney/Agent(s) Walter Fred ·
Primary Examiner Jones, Jr.; James L. ·
Application Number US5634662
Filing date 11/24/1975
Issue date 10/19/1976
Predicted expiration date 11/24/1995
U.S. Classifications 451/342  ·
International Classifications B24B 4100  ·
Kind CodeA
International Classifications 51168 ·
Foreign Priority IT3042074 - 11/12/1974 ·
21 Claims, No Drawings


Abstract

A grinding wheel mounting in which the wheel has a mounting hole of polygonal form into which is removably and coaxially inserted a corresponding polygonal shaped portion of an elastically deformable plastic body engaging the internal polygonal surfaces of the wheel. The body has a flange at one end in engagement with one side of the wheel and screw threads at its opposite end threadedly engaging with a slight interference fit, a threaded end portion of a grinding wheel spindle having an annular surface in clamping engagement with an opposite side of the grinding wheel. Upon screw threading the body together with the grinding wheel to the spindle, the grinding wheel is axially clamped beteen the flange on the body and the annular surface on the spindle and the body is slightly deformed radially by the interfering threaded portions thus eliminating axial and radial play, friction, slippage, wear and abrasion of the spindle threads.

Independent Claims | See all claims (21)

  1. 1. A grinding wheel mounting comprising:a spindle havinga threaded end portion including screw threads, and a clamping surface extending radially adjacent the screw threads in clamping engagement with one side of the grinding wheel;a grinding wheel havinga central mounting hole of polygonal cross-sectional shape extending axially between opposite sides of the wheel; anda threaded element made of elastically deformable material removably and coaxially inserted in the mounting hole and havinga polygonal portion corresponding to the polygonal cross-sectional shape of the mounting hole extending axially and engaging the internal surface of the wheel within the mounting hole,a collar flange integral with and extending radially from one end of the polygonal portion in clamping engagement with a surface of the wheel adjacent one end of the mounting hole of polygonal shape situated opposite the side of the wheel engaging the clamping surface of the spindle, andscrew threads adjacent an opposite end of the polygonal portion threadedly engaging the threaded end portion of the spindle and clamping the wheel axially between the collar flange and the clamping surface on the threaded end portion of the spindle.
  2. 8. A grinding wheel adapted to be threaded to and axially clamped against a radial clamping surface on a threaded end portion of a wheel spindle comprising:a grinding wheel havinga central mounting hole of polygonal cross-sectional shape extending axially between opposite sides of the wheel; anda threaded element made of elastically deformable material removably and coaxially inserted in the mounting hole and havinga polygonal portion corresponding to the polygonal cross-sectional shape of the hole extending axially and engaging the internal surface of the wheel within the mounting hole,a collar flange integral with and extending radially outward from one end of the polygonal portion for clamping engagement with a surface of the wheel adjacent one end of the mounting hole of polygonal shape, andscrew threads adjacent an opposite end of the polygonal portion adapted for threadedly engaging the threaded end portion of the spindle and clamping the wheel axially between the collar flange and the radial surface on the threaded end portion of the spindle.
  3. 15. A device for mounting a grinding wheel having a central mounting hole of polygonal cross sectional shape extending axially between opposite sides of the wheel to a threaded end portion of a grinding wheel spindle having screw threads and a clamping surface extending radially adjacent the threads for clamping engagement with a portion of one side of the grinding wheel comprising:a threaded element of elastically deformable material havinga polygonal portion corresponding substantially to the polygonal cross-sectional shape and size of the central mounting hole and adapted to be removably and coaxially inserted into engagement with the internal surface of the wheel within the mounting hole;a collar flange, integral with and extending radially outward from one end of the polygonal portion, for clamping engagement with a surface adjacent one end of the mounting hole of polygonal shape; andscrew threads adjacent an opposite end of the polygonal portion adapted for threadedly engaging the threaded end portion of the spindle and clamping the wheel axially between the collar flange and the clamping surface on the threaded end portion of the spindle.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US881691 Hughes Mar 1908
US1162970 Binford Dec 1915
US3256645 NORTON CO Holdash Jun 1966

Referenced By

Patent Family

Document NumberAssigneeInventorsIssue/Pub Date
SE7512853 NORTON CO BIARDI G Jun 1976
DE2555613 NORTON CO BIARDI GIUSEPPE Jun 1976
FR2292555 NORTON CO Jun 1976
GB1477115 NORTON CO Jun 1977
IT1026974 MORTON S P A Oct 1978