Caterpillar Tractor Co.

Dale C Brinkmann

Lyle E York

A bushing assembly employed in an engine mount comprises a cup-shaped outer housing, a cup-shaped inner housing having an engine support trunnion mounted therein, and an annular elastomeric bushing compressed between the cylindrical side walls of the outer and inner housings. An elastomeric pad is interposed between an end wall of the outer housing and an end wall of the inner housing to substantially absorb axially directed loads imposed thereon by the trunnion. Air openings are provided for facilitating assembly in the first embodiment in the outer housing and pad and in the second embodiment in the inner housing. In the second embodiment, the pad is spaced from the end wall of the inner housing and further includes a radially directed rib on the inner housing positioned to contact the annular member so as to assist in damping axial movement.

Engine mount

An operator's cab pivotally mounted to the frame of a tractor employing a screw jack for raising and positively and safely holding the cab in a raised position. When in a lowered operating position, the end of the cab spaced from the pivotal mounting is releasably secured to the frame by a pair of resilient mounting assemblies each including a first connector fixedly attached to the frame, a second connector fixedly attached to the cab, and a coupler having a body resiliently mounted to the first connector by means of a pin and resilient bushing and releasably secured to the second connector by means of a removable connecting pin. The weight of the cab is supported not by the removable connecting pin, but by mating bearing surfaces of the body and the second connector to facilitate removal of the pin. An upwardly projecting sloped surface of the first connector guides the body into supportive engagement with the mating surface thereof.

Growing community of inventors

East Peoria, IL, United States of America

Dale C Brinkmann