HYPOID GEAR
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United States of America Patent
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N/A
Issued Date -
Dec 20, 2012
app pub date -
Feb 18, 2011
filing date -
Mar 4, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The multiple meshing teeth of a hypoid gear multiple are cut at a specified spiral angle. The pressure angle on a tooth convex surface (16a) of a ring gear (12) and on a tooth concave surface (18b) of the pinion (14), which contacts the tooth convex surface (16a), increases from a small diameter end toward a large diameter end. Accordingly, contact ratio between the tooth convex surface (16a) and the tooth concave surface (18b) may be increased. Furthermore, the pressure angle on a tooth concave surface (16b) of the ring gear (12) and on a tooth convex surface (18a) of the pinion (14), which contacts the concave tooth surface (16b), continuously decreases from the small diameter end toward the large diameter end. Accordingly, the contact ratio between the tooth concave surface (16b) and the tooth convex surface (18a) can be increased.
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