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US 10,207,347 B2Granted
Reciprocating tool with inverse bushing
AssigneesRobert Bosch Tool Corporation, Robert Bosch GmbH
InventorsJaime Moreno, Brad Holmes
Life of this patent
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Abstract
In one embodiment, a reciprocating tool includes a reciprocating plunger, the plunger including an inner wall defining a chamber portion within the plunger, a motor operably connected to the plunger, and a bushing located at least partially within the chamber and contacting the inner wall.
Claims14
A reciprocating tool, comprising:
- a plunger configured to reciprocate along an axis, the plunger including an inner wall defining a chamber portion within the plunger;
- a motor operably connected to the plunger;
- a bushing located at least partially within the chamber and configured to support the plunger as the plunger reciprocates by contacting the inner wall with a non-reciprocating spherical portion of the bushing;
- and
- a reciprocating counterweight wrapping at least partially about an outer wall of the plunger.
2 more elements
A method of operating a reciprocating tool, comprising:
- rotating a shaft with a motor;
- translating the rotation of the shaft into a reciprocating motion of a plunger;
- supporting the reciprocating plunger with a non-reciprocating spherical head of a bushing located at least partially within a chamber defined by the plunger;
- and
- reciprocating a counterweight wrapped at least partially about an outer wall of the plunger in opposition to the reciprocation of the plunger.
2 more elements
A reciprocating tool, comprising:
- a plunger configured to reciprocate along an axis, the plunger including an inner wall defining a chamber portion within the plunger;
- a motor operably connected to the plunger;
- a bushing located at least partially within the chamber and configured to support the plunger as the plunger reciprocates by contacting the inner wall with a non-moving head portion of the bushing;
- and
- a reciprocating counterweight wrapping at least partially about an outer wall of the plunger, wherein:
- the bushing includes a stem portion;
- a maximum diameter of the stem portion is less than a maximum diameter of the head portion;
- and
- the stem portion is mounted within a receptacle defined by a housing portion of the reciprocating tool.
6 more elements
Dependencies are inferred from the claim text.