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The invention relates to a supporting chassis for a working machine, constituted by a central frame assembled to two longitudinal side-members. Each side-member is essentially constituted by a metal sheet which is bent to form an overturned V and by a plate, closing off the said V, which is fitted t

The invention relates to a supporting chassis for a working machine, constituted by a central frame assembled to two longitudinal side-members. Each side-member is essentially constituted by a metal sheet which is bent to form an overturned V and by a plate, closing off the said V, which is fitted to the lower ends of the sides of the overturned V. The invention finds an application as a supporting chassis for a hydraulic shovel.

대표청구항 ▼

Supporting chassis for a working machine such as a hydraulic shovel, comprising two longitudinal side-members, preferably two lateral side-members, each side member being essentially constituted by a metal sheet which is bent in such a way that its cross-section presents a downward oriented concavit

Supporting chassis for a working machine such as a hydraulic shovel, comprising two longitudinal side-members, preferably two lateral side-members, each side member being essentially constituted by a metal sheet which is bent in such a way that its cross-section presents a downward oriented concavity, and by a plate closing off the bent metal sheet, the lower edges of said metal sheet being secured to said plate; the improvement wherein said plate is monobloc and obtained by rolling and comprises a central zone of predetermined thickness, which is flanked on each one of its sides with a monobloc rim of material of thickness between opposite lateral surfaces of each rim substantially greater than the predetermined thickness adequate to receive upwardly directed fixing screw screwed therein, and wherein the the lower edges of the said metal sheet are in contact with the upper faces of the thick rims bordering longitudinally the closing plate.