Ergonomic handle for a hand-held tool

An ergonomic handle for a chain saw sharpening file, sized and shaped for cooperative engagement with a hand of a user, and comprising

• an oblong, contoured body having an upper surface, a lower surface, a longitudinal axis, a transverse axis, a thumb rest at the upper surface for user's thumb, a distal portion, and a proximal portion integral therewith, the distal and proximal portions together defining a central through passageway sized to receive the file along the longitudinal axis;
• a locking device in the distal portion for releasably securing a mid-portion of the file to the oblong, contoured body;
• the distal portion further defining a pair of angled front surfaces, both positioned at a first predetermined, included acute angle with respect to the longitudinal axis and at a second predetermined, included acute angle with respect to the transverse axis;
• the proximal portion having a bulbous configuration sized to be received in user's palm;
• and
• wherein the central through passageway is lined with a segment of an elastomeric tubing.

An ergonomic handle for a chain saw sharpening file, sized and shaped for cooperative engagement with a hand of a user, and comprising

• an oblong, contoured body having an upper surface, a lower surface, a longitudinal axis, a thumb rest at the upper surface for user's thumb, a distal portion, and a proximal portion integral therewith, the distal and proximal portions together defining a central passageway sized to receive the file along the longitudinal axis;
• a locking device in the distal portion for releasably securing a mid-portion of the file to the oblong, contoured body;
• the distal portion further defining an index finger rest laterally from the central passageway;
• the proximal portion having a bulbous configuration sized to be received in user's palm;
• and
• wherein the locking device comprises an apertured disk at proximal terminus of the central passageway and sized for frictional engagement with the file.

An ergonomic handle for a chain saw sharpening file, sized and shaped for cooperative engagement with a hand of a user, and comprising

• an oblong, contoured body having an upper surface, a lower surface, a longitudinal axis, a thumb rest at the upper surface for user's thumb, a distal portion, and a proximal portion integral therewith, the distal and proximal portions together defining a central passageway sized to receive the file along the longitudinal axis;
• a locking device in the distal portion for releasably securing a mid-portion of the file to the oblong, contoured body;
• the distal portion further defining an index finger rest laterally from the central passageway;
• the proximal portion having a bulbous configuration sized to be received in user's palm;
• and
• wherein a protruding externally threaded boss at the distal portion of the ergonomic handle surrounds the central passageway and is adapted to receive a guard for the file.