Caterpillar Inc.

Keith L Stanley

Ronald Mark Ginn

Dana D Branham

A linkage assembly for connecting an implement to a frame of a work machine which provides greater visibility for an operator of the work machine is disclosed. The linkage assembly includes a box-boom lift arm having a frame end portion and an implement end portion, wherein (i) the frame end portion is pivotally coupled to the frame, (ii) the implement end portion is pivotally coupled to the implement, and (iii) the frame end portion includes a first extension and a second extension spaced apart from each other so as to define a first lever space therebetween. The linkage assembly also includes a lift cylinder having a frame end and a lift arm end, wherein (i) the frame end is pivotally coupled to the frame, and (ii) the lift arm end is pivotally coupled to the box boom lift arm. Moreover, the linkage assembly includes a rear tilt link having a first end and a second end, wherein the first end is pivotally coupled to the frame. The linkage assembly further includes a-rear tilt lever having a cylinder end and a link end, wherein (i) the link end is pivotally coupled to the second end of the rear tilt link, (ii) the rear tilt lever is pivotally coupled to the box boom lift arm at a location which is interposed between the cylinder end and the link end, and (iii) the rear tilt lever extends through the first lever space. The linkage assembly also includes a tilt cylinder having a lever end and an implement end, wherein (i) the lever end is pivotally coupled to the cylinder end of the rear tilt lever, and (ii) the implement end is mechanically coupled to the implement.

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Shallotte, NC, United States of America

Keith L Stanley