Support Arm for a Work Machine

a technology for supporting arms and work machines, which is applied in mechanical machines/dredgers, soil shifting machines/dredgers, constructions, etc., can solve the problems of high cost, complex production and inspection of such welding seams, and relatively complicated cross-sections to manufacture, so as to achieve the lowest intrinsic mass and manufacturing with a minimum of effort.
US20090223093A1Inactive Publication Date: 2009-09-10CNH IND AMERICA LLC
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
CNH IND AMERICA LLC
Publication Date
2009-09-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

A support arm for a work machine is to be created whose design follows the component stresses to be expected to a high degree, which has the lowest possible intrinsic mass, and which can be manufactured with a minimum of effort.This is accomplished in that the support arm consists of at least one wall that has at least one plate-shaped element, which has at least one planar cut-out adapted to the component stresses expected, whereby at least one cut-out is closed off by a thin-walled cover element opposite the plate-shaped element.
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Description

[0001] The invention pertains to a support arm for a work machine, for example a jib or boom on the work equipment of a excavator, with at least one wall having at least one plate-shaped element.BACKGROUND

[0002] Work machines, both movable machines such as excavators, wheel loaders, tractors, telescopic handlers, or other such machines as well as stationary machines such as cranes have support arms of different types that, individually or in combination, bear or move a work tool, a support, or other components and that connect these components to the work machine. These support arms of varying length and design are often connected via a hinge to the drives moving the arm and to the machine, the work tool, the support, or other components. The support arms generally consist of a box-shaped cross-section that is formed by walls, for example upper and lower flanges, as well as by side walls. There are location points for pin supports welded onto or in the walls which connect the support ...

Claims

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