Abstract: A breather apparatus is provided in a cylinder head having an intake camshaft and an exhaust camshaft that drive an intake valve and an exhaust valve, respectively. The breather apparatus includes, spaces separated from each other by partition walls and in communication with each other through an opening formed in the partition walls, the spaces having a blow-by gas flowing from a crankcase side passing sequentially therethrough. The spaces include a first space and a second space. The first space is formed in a region between the intake valve and the exhaust valve in the cylinder head. The second space is provided across the first space from a crankcase side, separated from the first space by a partition wall disposed substantially along a plane including shaft centers of the intake camshaft and the exhaust camshaft, and receives the blow-by gas flowing from the first space.

Abstract: A garnish light alloy wheel includes a light alloy wheel and a garnish. The light alloy wheel includes an outboard surface and a recess located at a portion of the light alloy wheel including a spoke portion. The recess recedes from the outboard surface of the light alloy wheel. The garnish is manufactured separately from the light alloy wheel and is exchangeably mounted to the light alloy wheel at the recess. The light alloy wheel and the garnish construct a design surface of the garnish light alloy wheel, and the garnish has an outboard surface constructing a portion of the design surface of the garnish light alloy wheel.

Abstract: A garnish light alloy wheel includes a light alloy wheel and a garnish. The light alloy wheel includes an outboard surface and a recess located at a portion of the light alloy wheel including a spoke portion. The recess recedes from the outboard surface of the light alloy wheel. The garnish is manufactured separately from the light alloy wheel and is exchangeably mounted to the light alloy wheel at the recess. The light alloy wheel and the garnish construct a design surface of the garnish light alloy wheel, and the garnish has an outboard surface constructing a portion of the design surface of the garnish light alloy wheel.

Abstract: A driving mechanism having a driver-loose key provided between a rim base and a bead seat band mounted about the rim base of a multi-piece rim which has the rim base, the bead seat band, a pair of side rings and a lock ring. The driver-loose key is cross-shaped with the two portions thereof which are adapted to be inserted into a groove extending in the circumferential direction of the rim base between the rim base and the bead seat band being arc-shaped so as to have substantially the same curvature as that of the groove. With this structure the slippage of the bead seat band on the rim base can be minimized and the durability of the mechanism can be increased.

Abstract: A composite wheel for a vehicle including a disk, a rim having a rim base portion, a bead seat band mounted about the rim base portion, a side ring mounted on the bead seat band, and a lock ring provided between the rim base portion and the bead seat band for locking the bead seat band on the rim. An angle of a contact surface formed between the bead seat band and the lock ring is between 30.degree. and 40.degree. relative to an axis of the wheel so that slip at the contact surface between the bead seat band and the lock ring due to a load from a tire can be effectively prevented, while the sufficiency of the strength of each member in the wheel can be ensured.