Back to results
US 5,555,626 AGranted
Reciprocating drive mechanism
AssigneeS-B Power Tool Company
InventorRudolf Fuchs
Life of this patent
Estimating the term…
Abstract
The reciprocating saw has a motor driven assembly which operates in the nature of a wobble plate. One end of the assembly is connected to a spindle for reciprocating the same. The other end of the assembly is connected to a counterweight whereby the spindle and the counterweight are simultaneously reciprocated in opposite directions. The counterweight is generally U-shaped such that its center of gravity is located near the spindle.
Claims5
A reciprocating drive mechanism for a power tool comprising:
- (a) a housing;
- (b) a drive shaft rotatably mounted in said housing;
- (c) a spindle mounted in said housing for reciprocating motion along a substantially rectilinear first axis;
- (d) a counterweight mounted in said housing for reciprocating motion along a second axis parallel to said first axis, said counterweight being shaped such that its center of gravity is located between said spindle and said drive shaft;
- and
- (e) a wobble plate unit mounted on said drive shaft and having a first end connected to said spindle and a second end connected to said counterweight, whereby upon rotation of said drive shaft said spindle and said counterweight are simultaneously reciprocated in opposite directions.
3 more elements
A reciprocating drive mechanism comprising:
- (a) a housing;
- (b) a drive shaft mounted in said housing for rotation about a first axis;
- (c) a spindle mounted in said housing for reciprocating motion along a second substantially rectilinear axis parallel with said first axis;
- (d) a pair of rods mounted in said housing parallel to said first axis and disposed one on each side of said spindle;
- (e) a counterweight having a pair of bores receiving respective ones of said rods thereby mounting said counterweight for reciprocating movement along a third axis parallel to said first axis, said counterweight being shaped such that its center of gravity is located between said spindle and said drive shaft;
- and
- (f) a wobble plate unit mounted on said drive shaft and having a first end connected to said spindle and a second end connected to said counterweight, whereby upon rotation of said drive shaft said spindle and said counterweight are simultaneously reciprocated in opposite directions.
4 more elements
Dependencies are inferred from the claim text.