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US 2003/0140507 A1Published application
Bearing structure for a reciprocating shaft in a reciprocating saw
AssigneePorter-Cable/Delta
InventorsMichael Anthony Lagaly, Thomas Arnold Mooty, James Pierce Nichols JR.
Life of this patent
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Abstract
A reciprocating shaft assembly in a reciprocating saw moves in a reciprocal motion and drives a saw blade via a blade holder. At least one bore is formed in an end of the reciprocating shaft assembly opposite the blade holder. A pin fixed to the saw passes through the bore and acts as a bearing to support the reciprocating shaft assembly in its reciprocating motion.
Claims6
A reciprocating shaft and bearing combination for a reciprocating saw comprising:
- a housing;
- a first pin fixed to the housing;
- a reciprocating shaft assembly having a blade holder at a first end thereof for holding a saw blade, the reciprocating shaft assembly moving in a reciprocating motion relative to the first pin and parallel to an axis of motion;
- the reciprocating shaft assembly also having at least a first bore formed in a second end thereof opposite the first end, the axis of the first bore being formed parallel to the axis of motion and a portion of the first pin being positioned inside the first bore;
- wherein the first pin supports the reciprocating shaft assembly as a bearing during its reciprocating motion.
2 more elements
Dependencies are inferred from the claim text.