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US 6,742,267 B2Granted
Reciprocating saw
AssigneeMilwaukee Electric Tool Corporation
InventorsDragomir C. Marinkovich, Roger D. Neitzell
Life of this patent
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Abstract
A reciprocating saw including a housing, a motor supported by the housing, a spindle mounted for reciprocation relative to the housing and having a front end for supporting a saw blade, the spindle being movable through a cutting stroke and a return stroke, the cutting stroke having a stroke length, and a pivot body interconnecting the spindle and the motor. The position of the pivot axis of the pivot body may be movable relative to the housing to change the stroke length of the spindle. A shock absorber may be operatively positioned between the motor and the front end of the spindle and may be at least partially mounted within the spindle.
Claims26
A reciprocating saw comprising:
- a housing;
- a motor supported by the housing;
- a spindle mounted for reciprocation relative to the housing, the spindle having a front end for supporting a saw blade and being movable through a cutting stroke and a return stroke, the cutting stroke having a stroke length;
- and
- a pivot body connected between the motor and the spindle, the pivot body being driven by the motor to reciprocate the spindle, the pivot body being pivotable relative to the housing about a pivot pin defining a pivot axis, the pivot pin having a position relative to the housing, the position of the pivot pin being selectively adjustable relative to the housing to vary the stroke length of the spindle, the position of the pivot pin being substantially fixed relative to the housing during operation of the saw at a selected stroke length;
- wherein the spindle defines a spindle axis, the pivot axis being offset from the spindle axis, wherein the position of the pivot pin is selectively adjusted to vary the offset between the spindle axis and the pivot axis.
3 more elements
A reciprocating saw comprising:
- a housing;
- a motor supported by the housing;
- a spindle mounted for reciprocation relative to the housing, the spindle having a front end for supporting a saw blade and being movable through a cutting stroke and a return stroke, the cutting stroke having a stroke length;
- a pivot body connected between the motor and the spindle, the pivot body being driven by the motor to reciprocate the spindle, the pivot body being pivotable relative to the housing about a pivot pin defining a pivot axis, the pivot pin having a position relative to the housing, the position of the pivot pin being selectively adjustable relative to the housing to vary the stroke length of the spindle, the position of the pivot pin being substantially fixed relative to the housing during operation of the saw at a selected stroke length;
- and
- a reciprocating member driven by the motor for reciprocation along a drive axis, wherein the pivot body has a first end connected with the spindle and a second end connected with the reciprocating member.
3 more elements
A reciprocating saw comprising:
- a housing;
- a motor supported by the housing;
- a spindle supported for reciprocation relative to the housing, the spindle having an end for supporting a saw blade, the spindle being movable through a cutting stroke having a stroke length;
- a reciprocating member driven by the motor for reciprocation along a drive axis;
- and
- a pivot body having a first end connected with the spindle and a second end connected with the reciprocating member so that, as the reciprocating member reciprocates, the pivot body reciprocates the spindle, the pivot body being supported for pivoting movement about a pivot pin defining a pivot axis, the pivot pin being movable relative to the housing to selectively change the stroke length of the spindle.
3 more elements
A reciprocating saw comprising:
- a housing;
- a motor supported by the housing;
- a spindle supported for reciprocation relative to the housing, the spindle having an end for supporting a saw blade, the spindle being movable through a cutting stroke having a stroke length;
- a pivot body having a first end connected with the spindle and a second end interconnected with the motor so that the pivot body is operable to reciprocate the spindle, the pivot body being supported for pivoting movement about a pivot pin defining a pivot axis, the pivot pin being movable relative to the housing;
- and
- an adjustment assembly supporting the pivot pin in a substantially fixed position relative to the housing during operation at a selected stroke length and for movement relative to the housing to adjust the stroke length of the spindle;
- wherein the adjustment assembly includes a pin support member movably supported by the housing, the pivot pin being supported by the pin support member for movement relative to the housing with the pin support member, and further comprising an actuator member for moving the pin support member relative to the housing;
- wherein the actuator member is pivotable relative to the housing to move the pin support member relative to the housing;
- wherein the pin support member defines an adjustment slot, and wherein the actuator member includes an eccentric adjustment pin movable in the adjustment slot to move the pin support member relative to the housing.
6 more elements
Dependencies are inferred from the claim text.