US 12,269,543 B2
Suspended undercarriage assembly for a track system
Yves Sauvageau, Drummondville (CA); Branislav Nanac, Drummondville (CA); David Barry, Longueuil (CA); Marc Nadeau, Drummondville (CA); and Maxime Rivard, Blainville (CA)
Assigned to SOUCY INTERNATIONAL INC., Drummondville (CA)
Appl. No. 17/791,690
Filed by SOUCY INTERNATIONAL INC., Drummondville (CA)
PCT Filed Jan. 22, 2021, PCT No. PCT/IB2021/050504
§ 371(c)(1), (2) Date Jul. 8, 2022,
PCT Pub. No. WO2021/149005, PCT Pub. Date Jul. 29, 2021.
Claims priority of provisional application 62/964,963, filed on Jan. 23, 2020.
Prior Publication US 2023/0089165 A1, Mar. 23, 2023
Int. Cl. B62D 55/108 (2006.01); B62D 55/116 (2006.01); B62D 55/14 (2006.01)
CPC B62D 55/108 (2013.01) [B62D 55/116 (2013.01); B62D 55/14 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A suspended undercarriage assembly connectable to a frame member of a track system, the suspended undercarriage assembly comprising:
a first resilient assembly and a second resilient assembly, each having:
a first arm connectable to the frame member,
a second arm defining:
a pivot defining a pivot axis for pivotally connecting to the first arm, and
an aperture having an aperture axis, the aperture housing an axle for supporting a support wheel, and wherein the aperture axis is co-axial with an axis of rotation of the support wheel;
wherein one of the first and second arms define a recess, and another one of the first and second arms has a protrusion sized and configured to be received in the recess and allowing pivotal connection of the first and second arms, a resilient liner being disposed between the protrusion and the recess;
a spacing defined between the first and second arms; and
a resilient member disposed in the spacing and connected to the first and second arms, the resilient member being resiliently deformable to permit movement of the second arm relative to the first arm, and to resiliently bias the second arm towards a rest position with respect to the first arm;
wherein, a vertical displacement range of the aperture axis relative to the pivot axis comprises:
an elevation of the aperture axis below the pivot axis when the second arm is in a rest position; and
an elevation of the aperture axis above the pivot axis when the second arm has pivoted, the aperture axis and the pivot axis not being at the same elevation at the rest position,
wherein the pivot of the second arm of the first resilient assembly and the pivot of the second arm of the second resilient assembly are longitudinally spaced from each other.