Drill
First Claim
1. A drill comprising;
- a drive spindle centered on and rotatable about a spindle axis and formed centered on the axis with an axially forwardly open socket of noncircular section and with at least one radially throughgoing passage open radially inward into the socket;
a locking element radially displaceable in the passage between an inner position projecting radially inward into the socket and an outer position clear of the socket and projecting radially outward from the spindle; and
a collar formed with an inner surface closely juxtaposed with an outside surface of the spindle and with a radially inwardly open recess, the collar being axially displaceable on the spindle between a locked position with its inner surface pressing the element into the inner position and an unlocked position with its recess level with the element and the element movable into the outer position engaged in the collar recess.
1 Assignment
0 Petitions
Accused Products
Abstract
A drill has a drive spindle centered on and rotatable about a spindle axis and formed centered on the axis with an axially forwardly open socket of noncircular section and with at least one radially throughgoing passage open radially inward into the socket. A locking element is radially displaceable in the passage between an inner position projecting radially inward into the socket and an outer position clear of the socket and projecting radially outward from the spindle. A collar is formed with an inner surface closely juxtaposed with an outside surface of the spindle and with a radially inwardly open recess. The collar is axially displaceable on the spindle between a locked position with its inner surface pressing the element into the inner position and an unlocked position with its recess level with the element and the element movable into the outer position engaged in the collar recess.
18 Citations
14 Claims
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1. A drill comprising;
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a drive spindle centered on and rotatable about a spindle axis and formed centered on the axis with an axially forwardly open socket of noncircular section and with at least one radially throughgoing passage open radially inward into the socket;
a locking element radially displaceable in the passage between an inner position projecting radially inward into the socket and an outer position clear of the socket and projecting radially outward from the spindle; and
a collar formed with an inner surface closely juxtaposed with an outside surface of the spindle and with a radially inwardly open recess, the collar being axially displaceable on the spindle between a locked position with its inner surface pressing the element into the inner position and an unlocked position with its recess level with the element and the element movable into the outer position engaged in the collar recess. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. The drill defined in claimn 13 wherein the face is formed at an outer end of the spindle.
Specification