Chain

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5966923
SERIAL NO

09251078

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A conventional chain capable of reserving lubricating oil is complex in shape and expensive since each chain plate is formed with countersunk recesses and through-openings. Since the recesses are formed in an overlap region, the chain tends to rattle, producing noise. In the present invention according to which lubricating oil is fed toward a connecting pin, the lubricating oil is transferred to the connecting pin to effect intended lubrication. Part of the lubricating oil thus fed adheres to the recessed surfaces of the recesses and is prevented from immediately flowing down by viscous friction resistance and surface tension in the recessed surfaces. Thus, the oil is held in its adhering state. The lubricating oil gradually flows down to be used for lubrication as the chain moves. Thereby, after the chain has passed by an oil feeder, the connecting pin of the chain stays in such a state that oil is fed continuously for a long time.

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Patent Owner(s)

Patent OwnerAddress
DAIFUKU CO LTD2-11 MITEJIMA 3-CHOME NISHIYODOGAWA-KU OSAKA-SHI OSAKA 5550012 ?5550012

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nakamura, Jiro Ibaraki, JP 16 200

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