US 11,702,157 B2
Roller path of a track pad for a track chain
Gustavo Acosta, Flossmoor, IL (US); David Jennings Hakes, Princeville, IL (US); Benoit Abello, Dunlap, IL (US); Benjamin Isaac Jones, Washington, IL (US); and Udo Nott, Herdecke (DE)
Assigned to Caterpillar Inc., Peoria, IL (US)
Filed by Caterpillar Inc., Peoria, IL (US)
Filed on Jan. 11, 2021, as Appl. No. 17/145,878.
Application 17/145,878 is a continuation of application No. 15/943,850, filed on Apr. 3, 2018, granted, now 10,933,930.
Claims priority of provisional application 62/501,299, filed on May 4, 2017.
Prior Publication US 2021/0129929 A1, May 6, 2021
Int. Cl. B62D 55/20 (2006.01); B62D 55/21 (2006.01); B62D 55/14 (2006.01); B62D 55/26 (2006.01)
CPC B62D 55/202 (2013.01) [B62D 55/21 (2013.01); B62D 55/14 (2013.01); B62D 55/20 (2013.01); B62D 55/26 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A track chain member comprising:
a shoe member defining a track chain traveling direction and a lateral direction perpendicular to the track chain traveling direction; and
a track pad member, extending from the shoe member, including:
a first lug member extending from the shoe member in a first direction parallel to the track chain traveling direction, and
a second lug member and a third lug member both extending from the shoe member in a second direction opposite of the first direction,
wherein the first lug member and the third lug member define a Z-shaped configuration,
wherein the first lug member defines a first lug width along the lateral direction,
wherein the track pad member defines a roller support surface defining a roller support surface width along the lateral direction,
wherein the first lug width ranges from 40-60% of the roller support surface width,
wherein the second lug member includes a projection extending from the second lug member in the second direction,
wherein a first side of the projection is aligned with a first side of a section of the second lug member, and
wherein a second side of the projection is offset from a second side of the section.