초록 ▼

A differential having variable traction control and permitting preferably infinite planet or side gear braking adjustment during differential operation. In some preferred embodiments, an actuation element is movable during differential operation to exert braking force upon a side or planet gear. The

A differential having variable traction control and permitting preferably infinite planet or side gear braking adjustment during differential operation. In some preferred embodiments, an actuation element is movable during differential operation to exert braking force upon a side or planet gear. The braking force can be exerted directly or indirectly upon a gear surface by a braking element. The amount of braking force is preferably controlled via the actuation element through a range of positions. The actuation element is preferably a lever or similar element movable either to drive a brake element in harder or lighter frictional engagement with a planet or side gear or to drive a planet or side gear in harder or lighter frictional engagement with a brake element. Alternatively, the actuation element can be a set of cables movable to actuate a brake element. In other embodiments, actuation of the brake elements is inherently generated by differential operation. The brake element actuated by the actuator can be a brake pad located between the differential housing and the side or planet gear for generating braking force when sandwiched therebetween, a wedge-shaped brake block which can be wedged between two planet gears, a cone clutch element mating with the planet or side gears, a band brake fitted around an axle, a surface or portion of an element thrust into abutting relationship with the gear by the actuation element, or a friction element against which the gears press when moved by the actuation element.

대표청구항 ▼

1. An inexpensive variable traction control differential for a low-speed vehicle having at least two axles, the differential comprising:a planet gear; a side gear meshed with the planet gear and coupled to an axle for rotation therewith; a brake element located adjacent at least one of the side gear

1. An inexpensive variable traction control differential for a low-speed vehicle having at least two axles, the differential comprising:a planet gear; a side gear meshed with the planet gear and coupled to an axle for rotation therewith; a brake element located adjacent at least one of the side gear and the axle; an actuation element simultaneously movable with side gear rotation from a first position in which the brake element exerts a first braking force upon the side gear to a second position in which the brake element exerts a second braking force upon the side gear, the second braking force being higher than the first braking force, wherein the actuation element is automatically movable between the first position and the second position responsive to rotation of the planet gear.