Tool bit retaining assembly

Details Tool bit retaining assembly Tool bit retaining assembly

B - Operations, Transporting

25

B

B25B 15/00 (2006.01) B25B 15/02 (2006.01) B25B 23/00 (2006.01)

Patent

CA 2119347

ABSTRACT A tool bit retaining assembly for a tool of a type having a tool bit receptacle and a spring receiving region with a hole opening into the receptacle and a tool bit insertable into the receptacle. The tool bit has a transverse groove proximate an insertion end thereof, and includes a ball bearing with a diameter only slightly larger than that of the hole such that upon being pressed against the hole the ball bearing extends through the hole into the receptacle and engages the transverse groove in said tool bit. A split ring spring having a split extending from one end to the other with a portion transverse to the axis thereof is positionable around said spring receiving region such that the transverse portion of the split is opposite the ball bearing. The spring also has a hole on a side opposite the split of a diameter smaller than that of the ball bearing, such that with the hole in the spring against the ball bearing, the latter is pressed against the hole in the tool and engages a tool bit groove of a tool bit positioned in the receptacle.

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