Apparatus for, and method of, drilling lug holes and valve stem holes in motor vehicle wheels

In combination for providing for the drilling of lug holes and a valve stem hole in a wheel for a motor vehicle having an axle and lugs where the wheel has a central bore for receiving the axle and where lug holes are to be provided in the wheel for receiving the lugs and nuts for holding the lugs,

• first means movable relative to the wheel at a first position for holding the wheel radially inward from the periphery of the wheel,
• second means movable relative to the wheel for disposition against one side of the wheel at a position near the periphery of the wheel and radially outward from the disposition of the first means against the wheel, and
• third means responsive to the movement of the second means against the one side of the wheel for moving against the other side of the wheel near the periphery of the wheel to cooperate with the second means in clamping the wheel near the periphery of the wheel.

In combination for providing for the drilling of lug holes and a valve stem hole in a wheel of a motor vehicle having an axle and lugs where the wheel has a central bore for receiving the axle and where lug holes are to be provided in the wheel for receiving the lugs and nuts for holding the lugs,

• first means for providing a first force against the wheel at a position near the center of the wheel,
• second means for providing a second force against a first side of the wheel at a position near the periphery of the wheel, and
• third means for providing a third force against the other side of the wheel at a position substantially corresponding radially to the radial position of the second force.

In combination for the drilling of lug holes in a wheel for a motor vehicle having an axle and lugs where the wheel has a central bore for receiving the axle and where lug holes and a valve stem hole are to be provided in the wheel for receiving the lugs and nuts for holding the lugs,

• first means including a ring movable against a first side of the wheel at a position between the center of the wheel and the periphery of the wheel for positioning the wheel against movement,
• second means including a first clamping member movable against a second side of the wheel at a position radially outwardly from the position of the ring against the first side of the wheel and near the periphery of the wheel, and
• third means including a second clamping member movable against the first side of the wheel, after the movement of the first clamping member against the second side of the wheel, at a radial position corresponding to the radial position of the first clamping member.

In a method of providing for the drilling of lug holes in a wheel for a motor vehicle having an axle and lugs where the vehicle has a central bore for receiving the axle and where lug holes and a valve stem hole are to be provided in the wheel for receiving the lugs and nuts for holding the lugs, the steps of:

• initially disposing a first member against the wheel at a first position displaced a first radial distance from the radial center of the wheel,
• subsequently disposing a second member against one side of the wheel at a second position near the external periphery of the wheel and displaced radially outwardly from the first position on the wheel, and
• thereafter disposing a third member against the other side of the wheel at a third position substantially radially aligned with, but displaced axially from, the second position and in clamping relationship with the second member against the wheel.

In a method of providing for the drilling of lug holes in a wheel for a motor vehicle having an axle and lugs where the vehicle has a central bore for receiving the axle and where lug holes and a valve stem hole are to be provided in the wheel for receiving the lugs and nuts for holding the lugs, the steps of:

• initially disposing a first holding member against the wheel at a position near the center of the wheel,
• then disposing a first clamping member against a first side of the wheel at a position near the periphery of the wheel, and
• thereafter disposing a second clamping member against a second side of the wheel at a position corresponding to the position of the first clamping member on the first side of the wheel.