Caterpillar Inc.

John P Hall

Jay Holloman Renfrow

Gary L Walth

Pushkar N Tamhane

Michael R Helgeson

David H True

A work machine includes a boom body having a top boom support structure, a bottom boom support structure, a first lateral boom support structure, and a second lateral boom support structure which cooperate with each other to define a boom void therein. The boom body also has a machine frame coupling defined therein. The work machine also includes a coupling subassembly which is positioned within the boom void and attached to the boom body. The coupling subassembly includes (i) a first coupling support structure and a second coupling support structure which are spaced apart from each other so as to define a boss space therebetween and (ii) a boss positioned within the boss space and secured to the first coupling support structure and the second coupling support structure. In addition, (i) the boss has a pin passageway extending therethrough, (ii) the first coupling support structure has a first pin aperture defined therein, (iii) the second coupling support structure has a second pin aperture defined therein, and (iv) the pin passageway, the first pin aperture, and the second pin aperture are aligned with each other. The work machine further includes (i) a work machine stick which is pivotably coupled to the coupling subassembly and (ii) a work machine frame coupled to the machine frame coupling of the boom body.

Boom assembly of a work machine

A work machine having a stick assembly which- includes (i) a stick having a forward stick aperture (ii) a guide which is pivotally coupled to the stick, and (iii) a link pivotally coupled to the guide is disclosed. The work machine also includes a coupler having a left lateral support and a right lateral support, wherein (i) the left lateral support has a left rear coupler aperture, a left intermediate coupler aperture, and a left forward coupler notch, and (ii) the right lateral support has a right rear coupler aperture, a right intermediate coupler aperture, and a right forward coupler notch. The work machine also includes an implement assembly having a left bracket and a right bracket, wherein (i) the left bracket has a left rear implement aperture, a left intermediate implement aperture, and a left forward implement aperture, and (ii) the right bracket has a right rear implement aperture, a right intermediate implement aperture, and a right forward implement aperture, and wherein the left intermediate coupler aperture, the right intermediate coupler aperture, the left intermediate implement aperture, and the right intermediate implement aperture are linearly aligned when (i) the left rear coupler aperture, the right rear coupler aperture, the forward stick aperture are linearly aligned with the left rear implement aperture and the right rear implement aperture, and (ii) the left forward coupler notch, the right forward coupler notch are linearly aligned with the left forward implement aperture and the right forward implement aperture.

Growing community of inventors

Wilson, NC, United States of America

John P Hall