Passive locking chuck for rotary driver
AssigneeOjjo, Inc.
InventorTyrus Hudson
Life of this patent
Estimating the term…
Abstract
A passive locking chuck for a rotary driver. The chuck has a pair of rings, one fixed and the other rotatable between a first orientation where recesses formed in the rotatable ring are aligned with recesses formed in the fixed ring, and a second orientation where the recesses are offset from one another. When an upper end of a foundation component having a toothed coupler is inserted into the chuck and rotated axially, the movable ring is moved to the second orientation and the foundation component is thereby captured in the chuck. As soon as resistance is encountered from the soil, the ring moves back to the first orientation so that upon reaching the desired embedment depth, the rotary driver may be withdrawn without counter rotation.
Claims11
A chuck for a rotary driver comprising:
- a main body;
- an opening on a bottom portion of the main body, the opening having a first plurality of recesses formed therein to receive a driving end of a foundation component;
- and
- a movable ring in the opening, the ring having a second plurality of recesses formed on an inner surface thereof and rotatable within the main body from a first angular orientation where the second plurality of recesses aligns with the first plurality of recesses and a second angular orientation where the second plurality of recesses are offset from the first plurality of recesses, wherein the chuck is loaded by inserting a driving end of the foundation component into opening until it contacts the movable ring and twisting the foundation component in a first direction to move the ring from the first orientation to the second orientation and, further wherein, rotating the chuck in the first direction moves the movable ring back to the first orientation when the foundation component encounters resistance to the chuck's rotation.
A passive locking chuck for a rotary driver comprising:
- a main body having an upper portion and a lower portion;
- an opening in the lower portion, the opening having a first plurality of recesses formed on an inner surface thereof;
- and
- a movable ring, contained within main body, above the opening, the movable ring having a second plurality of recesses and operable to rotate within the main body from a first orientation where the second plurality of recesses are aligned with the first plurality of recesses to a second orientation where the second plurality of recesses are offset from the first plurality of recesses, wherein the chuck is loaded by inserting a driving end of the foundation component into opening until it contacts the movable ring and twisting the foundation component in a first direction to move the ring from the first orientation to the second orientation and, further wherein, rotating the chuck in the first direction moves the movable ring back to the first orientation when the foundation component encounters resistance to the chuck's rotation.
Dependencies are inferred from the claim text.