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US4167083: Grinding machine adapted for changing of grinding wheels on a grinding spindle

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Filing Information

Inventor(s) Sten T. Soderberg ·
Assignee(s) Lidkopings Mekaniska Verkstads Aktiebolag ·
Attorney/Agent(s) Daniel M. Rosen ·
Primary Examiner Harold D. Whitehead ·
Assistant Examiner Roscoe V. Parker ·
Application Number US5718914
Filing date 08/30/1976
Issue date 09/11/1979
Predicted expiration date 09/11/1996
U.S. Classifications 451/342  · 29/505  · 29/432  · 29/520  ·
International Classifications B24B 4104  ·
Kind CodeA
International Classifications 51168 ·
Related U.S. Application DataThis is a continuation, of application Ser. No. 583,975, filed June 5, 1975 and now abandoned.
Foreign Priority SE7407501 - 06/07/1974 ·
12 Claims, No Drawings


Abstract

Grinding machine adapted for changing of grinding wheels on a grinding spindle bolt of the kind in which the grinding wheel is fixed to the grinding spindle by introducing the spindle bolt in a bushing provided in a centrally located bore in the grinding wheel, and is removed from the spindle bolt by being axially pulled off said spindle bolt, characterized by that the envelope surface of the spindle bolt is provided with at least one ridge, which is arranged in the form of a helix with a great pitch.

Independent Claims | See all claims (12)

  1. 1. Grinding machine adapted for the rapid changing of grinding wheels on a grinding spindle bolt comprising a deformable bushing which is provided in a centrally located bore in said grinding wheel and adapted to receive said grinding spindle bolt, said spindle bolt having an external surface provided with at least one ridge helically arranged about said external surface, said ridge having a diameter exceeding the internal diameter of said bushing, the internal surface of said bushing being without grooves for receiving said ridges whereby said bushing is deformed by said ridges, said helix being pitched sufficiently greatly to enable assembly and disassembly of said wheel on said spindle bolt solely by axially directed forces.
  2. 8. In a grinding wheel assembly including a grinding wheel having a central mounting hole, and a driving spindle insertable in the same hole for driving said wheel; the improvement wherein the outer surface of said spindle is formed with a cylindrical surface having helical ridges and said hole is lined with a bushing of easily deformable material, said bushing having an internal diameter less than the outer diameter of said ridge, but sufficiently great to enable the inserting of said spindle therein, and being free of preformed internal grooves for receiving said ridge, said ridges having a sufficiently great pitch to enable assembly and disassembly of said wheel on said spindle substantially solely by the application of axially directed forces on said wheel and spindle.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US1833203 BUCKLEY JOHN L Buckley Nov 1931
US1974150 LUBRICATION CORP Creveling Sep 1934
US3002770 JOHNSON & JOHNSON Chestnut et al. Oct 1961
US3092162 UNITED CARR FASTENER CORP Johnsen Jun 1963

Foreign Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
DE2555613NORTON COJun 1976
FR1160812Mar 1958
FR1331527May 1963
GB769607WOLF ELECTRIC TOOLS LTDMar 1957

Referenced By

Document NumberAssigneeInventorsIssue/Pub Date
US7568866 Seco Tools AB Jan Eriksson et al. Aug 2009

Patent Family

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