Drive mechanism for a reciprocating saw
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United States of America Patent
Stats
-
Sep 21, 2010
Grant Date -
Mar 6, 2008
app pub date -
Aug 29, 2006
filing date -
Aug 29, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Embodiments of a reciprocating drive apparatus are disclosed which comprise a housing, a drive shaft rotatably mounted in the housing, an elongated plunger mounted in the housing for reciprocating motion; the plunger having a rear end portion configured to engage a wobble plate interface structure and a front end portion for attaching a tool, a first bushing positioned in the housing for retaining the front end portion in a manner whereby the plunger is not restrained from rotating about a first axis of rotation, a second bushing positioned in the housing for receiving the rear end portion of the elongated plunger in a manner whereby the plunger is not restrained from rotating along a second axis of rotation as the plunger reciprocates in the bushing, a wobble plate assembly operatively connected to the drive shaft and having an elongated arm with a wobble plate interface structure for engaging the rear end portion of the plunger and reciprocating the plunger in the first and second bushings.
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