Machine element or mechanism – Gearing – Rotary bodies
Patent
1998-04-06
2000-01-11
Herrmann, Allan D.
Machine element or mechanism
Gearing
Rotary bodies
2989334, 2989337, 419 5, 475331, 475344, 475901, F16H 5506, F16H 344, B22F 700
Patent
active
060123508
ABSTRACT:
The internal gear is a bottomed cylindrical component, which has the boss portion fitted over the outer circumferential surface of the shaft, the disk-shaped flange portion extending radially outwardly from the boss portion, and the cylindrical gear body having a tooth portion in its inner circumferential surface and connecting integrally to the outer circumferential part of the flange portion. The flange portion is virtually conical on its outer side surface and tapered from the outer diameter side toward the inner diameter side, i.e., from the gear body toward the boss portion. This construction is thicker at the boss portion side than at the gear body side. Further, the density of the flange portion is almost inversely proportional to the thickness and is lower at the boss portion side than at the gear body side. The cylindrical gear body has a density distribution such that the central part of the gear body is lower in density than the end portions in a tooth trace direction of the teeth portions.
REFERENCES:
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patent: 2704465 (1955-03-01), Haller
patent: 3752003 (1973-08-01), Dunn et al.
patent: 3762236 (1973-10-01), Dunn et al.
patent: 3842646 (1974-10-01), Kuhn
patent: 4885831 (1989-12-01), Fett
patent: 5195389 (1993-03-01), Isozumi
patent: 5307702 (1994-05-01), Spellman et al.
patent: 5356721 (1994-10-01), Knoess
patent: 5674148 (1997-10-01), Bouteille
Mizuta Muneo
Yabe Yasushi
Herrmann Allan D.
Jatco Corporation
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