Ring gear and gear device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10844945
APP PUB NO 20180051791A1
SERIAL NO

15660347

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The present invention relates to a ring gear and a gear reduction device. The ring gear includes an annular body with a plurality of mounting portions, and a plurality of teeth arranged on an inner circumferential surface of the annular body. The annular body and the teeth are integrally formed from powder metal, and the mounting portions and the teeth are at least partly overlapped in an axial direction of the annular body. The mounting portions are integrally formed with the annular body and the teeth, which results in concentricity between the mounting portion and the teeth being improved and cost of the ring gear being reduced. Furthermore, the mounting portions are overlapped with the teeth, which reduces the axial size of the ring gear.

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First Claim

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Patent Owner(s)

  • JOHNSON ELECTRIC INTERNATIONAL AG

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Qiu Mei Shenzhen, CN 11 41
Lo, Lap Wah Hong Kong, CN 2 3
Ta, Jing Ning Hong Kong, CN 21 101
Yi, Xing Ju Shenzhen, CN 3 35

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