US 8,408,974 B2 · Adapter for abrasive cutting wheels

Abstract

An abrasive disc assembly for a tool having an externally threaded, motor-driven spindle. The assembly includes an abrasive disc having a central bore formed therethrough and a male portion having an internally-threaded hub portion and a flange portion. The outer dimension of the hub portion is sized to be received within the central bore and the internally-threaded hub portion is enmeshingly engagable with the externally threaded, motor-driven spindle. The assembly further comprises an articulating locking finger extending from the male portion and having a retaining surface. The articulating locking finger is deflectable between a locked position and a deflected position. Finally, the assembly includes a female portion having a central cavity and an engagement surface. The central cavity receives the hub portion of the male portion such that the retaining surface of the articulating locking finger engages the engagement surface thereby releasably coupling the male portion to the female portion and retaining the abrasive disc therebetween.

Claims20

Dependent claims

An abrasive disc assembly for use with a power tool having an externally threaded, motor-driven spindle, said abrasive disc assembly comprising:

an abrasive disc having a central bore formed therethrough;
a male portion having an internally-threaded hub portion and a flange portion, an outer dimension of said hub portion being sized to be received within said central bore of said abrasive disc, said internally-threaded hub portion adapted to be threadedly engagable with the externally threaded, motor-driven spindle of the power tool;
an articulating locking finger extending from said male portion and having a retaining surface, said articulating locking finger being deflectable between a locked position and a deflected position;
and
a female portion having a central cavity and an engagement surface, said central cavity receiving said hub portion of said male portion such that said retaining surface of said articulating locking finger engages said engagement surface of said female portion thereby releasably coupling said male portion to said female portion and retaining said abrasive disc between said flange portion of said male portion and an axial face of said female portion.

2 more elements

An abrasive disc assembly for use with a power tool having an externally threaded, motor-driven spindle, said assembly comprising:

an abrasive disc having a central bore formed therethrough;
a male portion having an internally-threaded hub portion and a flange portion, said internally-threaded hub portion extending through said central bore of said abrasive disc, said internally-threaded hub portion being adapted to be threadedly engagable with the externally threaded, motor-driven spindle of the power tool;
a plurality of articulating locking fingers extending from said male portion and having a retaining surface, said plurality of articulating locking fingers being at least partially disposed with said central bore of said abrasive disc and each deflectable between a locked position and a deflected position;
and
a female portion having a central cavity and a plurality of engagement surfaces, said central cavity of said female portion receiving said hub portion of said male portion such that said retaining surfaces of said plurality of articulating locking fingers engage said plurality of engagement surfaces thereby releasably coupling said male portion to said female portion and retaining said abrasive disc between said flange portion of said male portion and an axial face of said female portion.

2 more elements

Dependencies are inferred from the claim text.

Adapter for abrasive cutting wheels

Life of this patent

Adapter for abrasive cutting wheels

Life of this patent

Abstract

Claims20