Gear pair consisting of a crown gear and of a pinion gear

Details Gear pair consisting of a crown gear and of a pinion gear Gear pair consisting of a crown gear and of a pinion gear

2011-04-19

2011-04-19

Ridley, Richard W (Department: 3656)

Machine element or mechanism

Gearing

Teeth

C074S416000

Reexamination Certificate

active

07926379

ABSTRACT:
The invention relates to a gear pair consisting of a crown gear (1) and of a pinion gear (2) provided in the form of a spur gear with an axis crossing angle of 90°. According to the invention, the teeth (3) of the pinion gear (2), in order to reduce an undercut of the teeth (5) of the crown gear (1), have a pressure angle, which increases from the outside inward in a radial direction with regard to the crown gear (1), or in the event of a constant pressure angle, have a profile offset, which decreases from the outside inward in a radial direction with regard to the crown gear (1).

REFERENCES:
patent: 2313183 (1943-03-01), Trbojevich
patent: 3820414 (1974-06-01), Baxter, Jr.
patent: 4744263 (1988-05-01), Kuiken
patent: 5845533 (1998-12-01), Basstein et al.
patent: 10147681 (2003-04-01), None
patent: 0271844 (1988-06-01), None
patent: 63180766 (1988-07-01), None
patent: 2004/099649 (2004-11-01), None
Internatioanl Search Report dated Feb. 15, 2006 from the corresponding PCT/EP2005/013234.

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