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US 2011/0298271 A1Published application
Wheel construction
AssigneeGKN Land Systems Limited
InventorStephen R. Cragg
Life of this patent
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AssigneeGKN Land Systems Limited
InventorStephen R. Cragg
Estimating the term…
A wheel construction (10) includes a wheel rim (11) which in use, at a tyre side (12) of the rim (11), receives a tyre (14), the rim (11) being circular and having axially inner and outer portions (16,15), and a mid-portion (18) between the axially inner and outer portions (16,15), the mid-portion (18) including a circumferential well where the radius of the wheel rim (11) is a minimum, and each axially inner and outer portion (16,15) providing a flange (22), a connecting surface (23) adjoining the flange (22) and extending axially towards the mid portion (18), the flange (22) and a part of the connecting surface (23) providing a seat for a bead of the tyre (14), and there being a side part (19,20) between the connecting surface (23) and the mid portion (18) and wherein for at least one of the inner and outer portions (16, 15), the connecting surface (23) is frusto-conical having an axial end (24) of greatest radius and an axial end (25) of least radius, the connecting surface (23), at its axial end (24) of greatest radius, adjoining the flange (22), and the side part (20, 19) of the at least one of the axially inner and outer portions (16, 15) including a generally frusto-conical region (28) and a curved region (40), the frusto-conical region (28) at its end of greatest radius (26) adjoining the connecting surface (23), and the curved region (40) including first (41), second (42) and third (43) axially spaced circumferentially extending concave surfaces, when viewed from the tyre side (12) of the rim (11), the curved region (40) adjoining an end (29) of least radius of the frusto-conical region (28) and the mid-portion (18).
A wheel construction which includes a wheel rim which in use, at a tyre side of the rim, receives a tyre, the rim being circular and having axially inner and outer portions, and a mid-between the axially inner and outer portions, the mid-portion (18) including a circumferential well where the radius of the wheel rim (11) is a minimum, and each axially inner and outer portion providing a flange, a connecting surface adjoining the flange and extending axially towards the mid portion, the flange and a part of the connecting surface providing a seat for a bead of the tyre, and there being a side part between the connecting surface and the mid portion and wherein for at least one of the inner and outer portions, the connecting surface is frusto-conical having an axial end of greatest radius and an axial end or least radius, the connecting surface at its axial end of greatest radius, adjoining the flange and the side part of the at least one of the axially inner and outer portions including a generally frusto-conical region and a curved region, the frusto-conical region at its end of greatest radius adjoining the connecting surface and the curved region including first, second and third axially spaced circumferentially extending concave surfaces, when viewed from the tyre side of the rim, the curved region adjoining an end of least radius of the frusto-conical region and the mid-portion.
Dependencies are inferred from the claim text.