Vehicles

A vehicle wherein a casing for a power unit which supports and drives driving wheels and which is pivotably supported on a vehicle body frame through a pivot means so as to allow upward and downward movement of said driving wheels, said Pivot means being formed into a hollow configuration and secured to said power unit, a first pipe line supported on said casing being connected to said pivot means, a second pipe line supported on said body frame being connected relatIveIy pivotably to said pivot, said first and second pipe lines being communicated with each other through the hollow portion of said pivot means.

A vehicle wherein a casing for a power unit which supports and drives driving wheels and which is pivotably supported on a vehicle body frame through a pivot means so as to allow upward and downward movement of said driving wheels, said pivot means being formed into a hollow configuration and secured to said power unit, a first pipe line supported on said casing being connected relatively rotatably to said pivot means, a second pipe line supported on said body frame being connected to said pivot means, said first and second pipe lines being connected together through the hollow portion of said pivot means.

In a vehicle with a frame and a pair of driving wheels at one end, the combination of, a rigid casing means mounted on and extending across the frame at said one end, said casing means mounted for pivoting about a lateral axis and having portions on the outside of the frame extending longitudinally from said lateral axis with means on said portions for rotatably supporting the driving wheels at a location spaced from said lateral axis for rotation on an axis parallel to said lateral axis, said casing means provided with an engine and drive means for driving said driving wheels, and means for resiliently resisting pivoting of said casing means in response to vertical movement of the driving wheels.