Rotary surface finishing device
OwnerRalph A. Burkleyinventor
Life of this patent
Estimating the term…
Abstract
A rotary tool for performing surface finishing operations such as sanding, grinding, buffing, polishing and others. The tool has a rotary spindle with a shank portion at one end of which is retained by a rotary chuck of a power source. A portion of the spindle at the opposite end has a flexible planar surface finishing member attached to it in such manner that the member lies in a common plane with the longitudinal axis of the spindle. The finishing member is preferably made of multiple flexible layers fastened together by a centrally located eyelet. The finishing member bends when rotated against a flat or curved surface to be finished and sweeps in a linear direction across the surface. This tool is especially useful for deburring holes and is self centering when inserted in a hole.
Claims20
A flexible rotary surface finishing device connectable to a source of rotary power, said device comprising:
- (A) a rotatable elongated spindle having a first portion at one end adapted to be connected to a rotary power source for rotation about its longitudinal axis and a second portion on the other end having a transverse slot extending therethrough dividing at least the second portion into spindle halves;
- (B) at least one flexible planar finishing member having surface finishing characteristics facing outwardly from each opposite side thereof;
- and
- (C) an axially slidable retaining ring member encircling the spindle to urge the spindle halves inwardly to bear against opposite sides of the finishing member to removeably clamp the planar finishing member within the transverse slot between the spindle halves to prevent any movement of the finishing member transversely of the spindle;
- (D) said finishing member lying in a single common plane with the longitudinal axis of the spindle, and extending radially outwardly in opposite directions from the longitudinal axis of the spindle.
A flexible rotary surface finishing device connectable to a source of rotary power, said device comprising:
- (A) a rotatable elongated spindle having a forward end and a rearward end, a first portion adjacent the rearward end adapted to be connected to a rotary power source for rotation about its longitudinal axis and a second portion integral therewith adapted to receive a planar finishing member, both the first and second portions having a continuous transverse slot extending throughout their axial length and dividing both portions of the spindle into halves both of said halves being joined together at the forward end of the spindle;
- (B) at least one flexible planar finishing member having surface finishing characteristics facing outwardly from each opposite side thereof positioned within the slot;
- and
- (C) means removeably clamping the planar finishing member between the spindle halves to retain the finishing member within the slot;
- (D) said finishing member lying in a common plane with the longitudinal axis of the spindle, and extending radially outwardly in opposite directions from the longitudinal axis of the spindle.
A flexible rotary surface finishing device connectable to a source of rotary power, said device comprising:
- (A) a rotatable elongated spindle having a first portion atone end adapted to be connected to a rotary power source for rotation about its longitudinal axis and a second portion on the other end having a transverse slot extending therethrough dividing at least the second portion into spindle halves;
- (B) at least one flexible planar finishing member in the shape of a circular disc having surface finishing characteristics facing outwardly from each opposite side thereof attached to a second portion of the spindle adjacent the opposite end from the first portion;
- (C) an axially slidable retaining member encircling the spindle to urge the spindle halves inwardly to bear against opposite sides of the finishing member to removeably clamp the planar finishing member within the transverse slot between the spindle halves to prevent any movement of the finishing member transversely of the spindle;
- (D) said finishing member lying in a single common plane with the longitudinal axis of the spindle, and extending radially outwardly in opposite directions from the longitudinal axis of the spindle, and said finishing member being periodically rotatable circumferentially to various positions in relation to the longitudinal axis of the spindle to uniformly distribute the wear of the finishing member to various locations on the member.
Dependencies are inferred from the claim text.