Patent ID: 6508019
Filing Date: 2003-01-21
Classification: E02F,Y10T

Abstract:
A boom for a bucket type excavator comprising:a rear member; said rear member being bent from a first steel plate into a first triangular cross section with arcuate corners, a base of said first triangular cross section being disposed at a lower portion thereof, and an apex disposed at an upper portion thereof; a front member; said front member being bent from a second steel plate into a second triangular cross section with arcuate corners, a base of said second triangular cross section being disposed at a lower portion thereof, and an apex disposed at an upper portion thereof; a boom intermediate member; said boom intermediate member including first means for affixing to an outer end of said rear member; said boom intermediate member including second means for affixing to an inner end of said front member; and said boom intermediate member having a shape which inclines said front member with respect to said rear member so that said front member, said rear member and said boom intermediate member assume a generally boomerang shape.