Boom for excavation machine

Details Boom for excavation machine Boom for excavation machine

2011-06-14

2011-06-14

Glessner, Brian E (Department: 3633)

Static structures (e.g., buildings)

Elongated rigid structure

C052S115000, C052S116000, C052S117000

Reexamination Certificate

active

07958693

ABSTRACT:
In a boom15for a working machine10attached to an upper rotational body30supported on a center of an upper portion of a crawler-type traveling device40to be transversely rotatable, the boom15includes, as portions cast by integral molding, a boom support point part16, a boom cylinder rod support point part18, and an arm support point part19, and is configured so that the boom support point part16is connected to the boom cylinder rod support point part18by a general-purpose first rectangular pipe61, and so that the boom cylinder rod support point part18is connected to the arm support point part19by a general-purpose second rectangular pipe62.

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