Quick change tool bit holder for round shafts
AssigneeInsty-Bit, LLC
InventorJames L. Wienhold
Life of this patent
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Abstract
An apparatus is disclosed for holding the shaft of an object, wherein the shaft rotates in a first working direction. The apparatus includes a bore, a first ball slot in communication with the bore, a first ball disposed within the first ball slot, and a spring. The bore has a longitudinal axis, and the shaft is inserted into the bore in an insertion direction. The first ball slot is in communication with the bore and includes a ramp. The first ball slot has a first axis that is angularly offset from the longitudinal axis at an acute angle between the insertion direction and the first working direction. Upon insertion of the shaft into the bore, the shaft contacts the ball and causes it to move along the ramp within the ball slot, thereby compressing the spring by a first amount.
Claims18
An apparatus for holding a shaft of an object, wherein the shaft rotates in a first working direction, the apparatus comprising:
- a bore into which the shaft is inserted in an insertion direction, the bore having a longitudinal axis;
- a first ball slot in communication with the bore, the ball slot having a first axis that is angularly offset from the longitudinal axis at an acute angle between the insertion direction and the first working direction, the first ball slot further comprising a ramp;
- a first ball disposed within the first ball slot;
- and
- a spring, wherein upon insertion of the shaft into the bore, the shaft contacts the first ball and causes the first ball to move along the ramp within the first ball slot, thereby compressing the spring by a first amount.
Dependencies are inferred from the claim text.