Patent ID: 6098737
Filing Date: 2000-08-08
Classification: B60K,F16H,Y02T,Y10S

Abstract:
A coupling device which is disposed between left and right wheels of a vehicle, comprising:a pair of differential gears, each comprising first, second, and third rotational elements which are rotatable relative to one another, wherein said first rotational elements of both said differential gears are coupled to each other, and wherein said second rotational elements of both said differential gears are coupled to the left and right wheels respectively;a driving source which drives to rotate said third rotational element of one of said differential gears; andswitching means which is switchable between a state in which said third rotational element of the other of said differential gears is prevented from rotating, and a state in which said third rotational element of the other of said differential gears is coupled to one of said first rotational element and said second rotational element of said the other of said differential gears such that said first through said third rotational elements of said the other of said differential gears are rotatable together.