Bit holder with slotted shank and annular ring
AssigneeThe Sollami Company
InventorPhillip Sollami
Life of this patent
Estimating the term…
Abstract
A bit holder that includes a forward body portion and a shank axially depending from the bottom of the forward body portion. The shank of the bit holder includes at least one slot and an annular ring disposed partially or nearly circumferentially around the shank. The slotted shank of the bit holder and the annular ring are radially compressible when inserted into a bore of a base block. An outer diameter of the annular ring being greater than an outer diameter of the shank such that only the outer diameter of the annular ring makes contact with the bore of the base block to achieve and maintain an interference fit when the bit holder is inserted into the bore of the base block.
Claims26
A bit holder adapted to be connected to a base block, the bit holder comprising:
- a body portion comprising an annular flange adjacent a bottom of the body portion, the annular flange adapted to contact a front face of the base block;
- a generally cylindrical hollow shank axially depending from the bottom of the body portion, the shank comprising:
- a slot axially extending from a distal end of the shank;
- an annular groove adjacent the distal end of the shank;
- and
- a c-shaped annular ring disposed circumferentially in a portion of the annular groove, the c-shaped annular ring adapted to be the only contacting surface with a bore of the base block adjacent the slot and form a differential interference fit with the bore of the base block adjacent the distal end of the shank.
A combination bit holder and base block comprising:
- a base block comprising:
- a base mounting portion including a base surface;
- and
- a device receiving portion integrally extending from the base mounting portion opposite the base surface, the device receiving portion comprising a bore extending from a front face of the device receiving portion to a rear face of the device receiving portion;
- and
- a bit holder comprising:
- a body portion comprising an annular flange adjacent a bottom of the body portion, the annular flange adapted to contact the front face of the base block;
- a generally cylindrical hollow shank axially depending from the bottom of the body portion, the shank comprising:
- a slot axially extending from a distal end of the shank;
- an annular groove adjacent the distal end of the shank;
- and
- a c-shaped annular ring disposed in a portion of the annular groove, the c-shaped annular ring being the only contacting surface with the bore of the of the device receiving portion of the base block adjacent the slot and forming a differential interference fit with the bore of the device receiving portion of the base block adjacent the distal end of the shank.
Dependencies are inferred from the claim text.