Interference preventing gear in communication equipment and elec

Details Interference preventing gear in communication equipment and elec Interference preventing gear in communication equipment and elec

1996-08-12

1999-09-07

Jeffery, John A.

Machine element or mechanism

Gearing

Teeth

74460, 74457, F16H 5506

Patent

active

059469757

ABSTRACT:
A high addendum tooth for a spur gear that prevents interference upon engagement with other high addendum gear teeth when the engaging gears are not perfectly aligned. The gear tooth design is divided into two portions along the face width of the tooth. The first portion is located at the first end of the tooth and involves having a high tooth height. The sidewall or face surface of this first portion may be involute, flat, or some other profile. The second portion of the gear tooth is situated along the remainder of the length of the tooth extending from the first portion to the second end. The second portion does not have a high tooth height. Instead, the top of the second portion of the tooth is cut and ground to have a flat surface. The second portion is proportionally much longer and occupies a much greater portion of the face width than the first portion. This design allows the engaging gear teeth to slide over each other instead of gouging into each other, thus facilitating smoother operation between slightly misaligned spur gears.

REFERENCES:
patent: 2463725 (1949-03-01), Stonebraker
patent: 2682760 (1954-07-01), Shenk
patent: 3043158 (1962-07-01), Herr, Jr.
patent: 3881365 (1975-05-01), Hardy
patent: 4051745 (1977-10-01), Ishikawa
patent: 4276785 (1981-07-01), Rouverol
patent: 4744263 (1988-05-01), Kuiken
patent: 4942781 (1990-07-01), Hori

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