Material or article handling – Vertically swinging load support – Shovel or fork type
Reexamination Certificate
2006-01-23
2010-11-09
Underwood, Donald (Department: 3652)
Material or article handling
Vertically swinging load support
Shovel or fork type
C414S686000
Reexamination Certificate
active
07828505
ABSTRACT:
A lift arm having a plate-like structure that is capable of taking a large load is realized without increasing a plate thickness and at low cost. The structure with required strength and of low cost is realized by a simple construction and achieves, at the same time, both weight lightening of a loader and sufficient load bearing performance. In a loader (2) of a working machine (1), connection sections between a cross member (176) and lift arms (171) are each formed in a shape broadening from the cross member (176) toward a lift arm (171). Further, reinforcement plates are attached to outer surfaces of a front loader (2) so as to overlap the connection sections between the cross member (176) and the lift arms (171). Contact members (171b, 171b) are attached to lower side faces at the heads of the lift arms (171) to restrict the amount of rotation of a working device installed on the heads of the lift arms (171).
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International Search Report for International Application No. PCT/JP2006/300953, Japanese Patent Office, mailed Apr. 11, 2006, 2 pgs.
Sakada Seiji
Tajima Makiko
Takata Kouichi
Yamashita Yousuke
Sterne Kessler Goldstein & Fox P.L.L.C.
Underwood Donald
Yanmar Co. Ltd.
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