US 12,435,774 B2
Tooth jump protection device
Matthew W. Crump, Cortland, NY (US); Christopher Van Loon, Ithaca, NY (US); Sean R Simmons, Ithaca, NY (US); Timothy K. White, Sterling Heights, MI (US); Joseph P. Goodsell, Groton, NY (US); and Bradley F. Adams, Homer, NY (US)
Assigned to BorgWarner, Inc., Auburn Hills, MI (US)
Filed by BorgWarner, Inc., Auburn Hills, MI (US)
Filed on Aug. 30, 2023, as Appl. No. 18/458,719.
Application 18/458,719 is a continuation in part of application No. 17/648,617, filed on Jan. 21, 2022, granted, now 12,320,425.
Claims priority of provisional application 63/218,129, filed on Jul. 2, 2021.
Claims priority of provisional application 63/140,448, filed on Jan. 22, 2021.
Prior Publication US 2023/0407949 A1, Dec. 21, 2023
Int. Cl. F16H 7/18 (2006.01); B60K 17/342 (2006.01); F16H 7/06 (2006.01); F16H 7/08 (2006.01)
CPC F16H 7/18 (2013.01) [B60K 17/342 (2013.01); F16H 7/06 (2013.01); F16H 7/0829 (2013.01); F16H 2007/0872 (2013.01); F16H 2007/0874 (2013.01); F16H 2007/185 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A chain drive system in a transfer case, the chain drive system comprising:
a drive sprocket;
a driven sprocket;
a chain connecting the drive sprocket to the driven sprocket, the chain having a slack strand between the driven sprocket and the drive sprocket and a tight strand between the driven sprocket and the drive sprocket; and
at least a first tooth jump protection device mounted between the driven sprocket and the drive sprocket on the slack strand of the chain, with the first tooth jump protection device installed within the chain drive system at a distance defined between a centerline of the driven sprocket and a first end of the first tooth jump protection device and defining a gap distance between the at least first tooth jump protection device and the slack strand of the chain;
wherein the first tooth jump protection device comprises a first tooth jump protection device snubber having a body with the first end and a second end separated by a length, the body comprising a first flat member at the first end, a second flat member at the second end and an angled ramp connecting the first flat member to the second member, the first flat member having a first flat member surface for contacting the slack strand of the chain and a second flat member surface of the second flat member defining the gap distance, such that the first flat member surface aids in controlling strand resonance of the chain and the second flat member surface is adapted to engage the slack strand of the chain to maintain the chain engaged with the driven sprocket and prevent chain slack buildup on the driven sprocket aids in controlling slack of the slack strand of the chain.