US 7,726,927 B2 · Quick-adjust for snowmobile clutch

Abstract

An apparatus is disclosed for aiding in the speed and simplicity of the adjustment of the clicker-style cam bolts employed by TRA-type snowmobile drive clutches, manufactured by Bombardier Recreational Products. The apparatus comprises a barrel type nut with a collared head and a compression wire spring which fits telescopically over said nut and against said collared head, and a locking set screw to secure the apparatus against rotational movement or removal. This assembly replaces the conventional hexagonal lock nut presently used on TRA-type drive clutches. This apparatus enables the user to change the linear position of the cam bolt in the drive clutch housing to enable the hexagonal head of the clicker-style bolt to clear its respective hexagonally indexed pocket, which is molded into the drive clutch housing, and to be turned to any one of six different degrees of rotation, thereby changing the shift-out RPM setting of the drive clutch quickly and with greater ease than conventional methods.

Claims7

Dependent claims

In an eccentric bolt assembly used to adjust peak shift revolutions per minute (RPM) in a snowmobile drive clutch assembly, a bolt head of the eccentric bolt being adapted to fit into a shaped index pocket in the drive clutch housing, the improvement which comprises:

a spring restrained relative to said eccentric bolt, said spring also being restrained relative to said drive clutch housing, so that the eccentric bolt may be pushed and its bolt head clear the drive clutch housing for rotation of the eccentric bolt for adjustment of the snowmobile peak shift RPM.

Dependencies are inferred from the claim text.

Quick-adjust for snowmobile clutch

Life of this patent

Quick-adjust for snowmobile clutch

Life of this patent

Abstract

Claims7