The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 21, 2003
Filed:
Jan. 18, 2000
Hidetoshi Sasaki, Kawasaki, JP;
Toshio Tanaka, Hirakata, JP;
Tatsushi Itoh, Hirakata, JP;
Nobuyoshi Masumoto, Hirakata, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
A boom body ( ) comprises a boom front member ( ), a boom intermediate member ( ) and a boom rear member ( ). An arm-connection bracket ( ) is jointed to the boom front member ( ) and a vehicle body-mounting bracket ( ) is jointed to the boom rear member ( ), thereby forming a boom. With this structure, a cross section of the boom body ( ) is less prone to be deformed and therefore, the plate thickness can be reduced, the rigidity of the boom body ( ) can be increased without mounting a cross section restraint material and the cross section of the boom is not deformed. Therefore, it is possible to reduce the boom in weight.