BEARING DEVICE FOR CONSTRUCTION MACHINE

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20150016761A1
SERIAL NO

14372311

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The invention pertains to a bearing device used for a connecting part of a construction machine. The bearing device has: a boom having a boss part; an arm having left and right brackets that sandwich the boss part from the left and right sides thereof; a bush that is retained by an inner peripheral side of the boss part; a sealing that is disposed between the bush and the left and right brackets and that prevents a lubricant from leaking out of the bush; a thrust plate inserted between the left and right brackets and the boss part; and a coupling pin that penetrates and is inserted through the left and right brackets and the bush. The thrust plate has a partially cut out annular shape and an angle of a cut-out portion in the circumferential direction is less than 180° at an inner peripheral portion.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
HITACHI CONSTRUCTION MACHINERY CO LTD16-1 HIGASHIUENO 2-CHOME TAITO-KU TOKYO 1100015 ?1100015

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Akita, Hideki Tsuchiura, JP 20 118
Gokita, Osamu Tsukuba, JP 20 101
Sakurai, Shigeyuki Tsukuba, JP 15 175
Satou, Akiko Ushiku, JP 2 3

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