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US 2013/0079182 A1Published application
Pulley system for outdoor power equipment
AssigneeBriggs & Stratton Corporation
InventorsJason J. Raasch, Richard J. Gilpatrick
Life of this patent
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Abstract
A method of manufacturing a pulley system includes spin-forming metal to form an annular wall of a sheave, pressing powdered metal to form a hub of the sheave, and fastening together the annular wall and the hub.
Claims20
A pulley system configured for use as part of a continuously variable transmission of outdoor power equipment, comprising:
- a sheave, comprising:
- a hub formed from a first material;
- a first annular wall formed from a second material, wherein the first annular wall comprises a guide surface and is fastened to the hub;
- and
- a second annular wall comprising a guide surface, wherein the guide surface of the first annular wall faces the guide surface of the second annular wall to provide a track configured to receive a belt.
2 more elements
A method of manufacturing a pulley system, comprising:
- spin-forming metal to form an annular wall of a sheave;
- pressing powdered metal to form a hub of the sheave;
- and
- fastening together the annular wall and the hub.
1 more element
Outdoor power equipment, comprising:
- an engine comprising a crankshaft having a power takeoff;
- a tool comprising a driveshaft and configured to be powered by the engine;
- and
- a pulley system coupling the engine and the tool, wherein the pulley system comprises a first sheave, comprising:
- a first hub comprising an aperture configured to receive the power takeoff;
- a first annular wall fastened to the first hub, wherein the first annular wall comprises a guide surface;
- and
- a second annular wall comprising a guide surface, wherein the second annular wall is fastened to the power takeoff of the crankshaft of the engine, and wherein the guide surface of the first annular wall faces the guide surface of the second annular wall to provide a first track configured to receive a belt.
5 more elements
Dependencies are inferred from the claim text.