Back to results
US 4,554,961 AGranted
Wheel rim with split locking ring
AssigneeTopy Industries, Limited
InventorsShigeru Osawa, Hisayoshi Yamoto
Life of this patent
Estimating the term…
Abstract
A bottom surface portion of a lockring groove defined by a rim base is formed to be an inclined surface on which a load in a radial direction acts through a lockring. A leg portion of the lockring having an annular body engaged thereto is formed to be an inclined surface so as to abut the inclined surface of the lockring groove defined by the rim base.
Claims5
A wheel rim assembly comprising
- an annular rimbase for a pneumatic tire,
- a bead seat band,
- a lockring groove defined by the rimbase,
- a lockring located in said lockring groove interconnecting said annular rimbase and said bead seat band,
- said lockring groove having a first bottom surface inclined at a predetermined angle of between 5.degree. and 20.degree. with respect to the axis of said annular rimbase and a vertical side wall portion,
- said lockring having a second bottom surface substantially abutting said first bottom surface and an outer side wall portion substantially abutting said vertical side wall portion,
- said bead seat band having a first inclined conical surface,
- a second inclined conical surface defined by said lockring abutting said first inclined conical surface,
- a first edge portion defined by said lockring groove located between said first bottom surface and said vertical side wall portion, and
- a second edge portion defined by said lockring located between said second bottom surface and said outer side wall portion,
- said second edge portion being spaced from said first edge portion for dividing a force between axial side pressure forces transferred from said outer side wall portion to said vertical wall portion and radial pressure forces transferred from said second bottom portion to said first bottom portion when said pneumatic tire is inflated, the spacing between said first edge portion and second edge portion prevents movement of said lockring out of said lockring groove by rolling when said force is divided.
8 more elements
A wheel rim assembly comprising
- an annular rimbase for a pneumatic tire,
- a bead seat band,
- a lockring groove defined by the rimbase,
- a lockring located in said locking groove interconnecting said annular rimbase and said bead seat band,
- said lockring groove having a first bottom surface inclined at a predetermined angle of between 5.degree. and 20.degree. with respect to the axis of said annular rimbase and a side wall portion inclined at a predetermined angle of between 10.degree. and 30.degree. with respect to a line normal to the axis of said annular rimbase,
- said lockring having a second bottom surface substantially abutting said first bottom surface and an outer side wall portion substantially abutting said side wall portion,
- the bead seat band having a first inclined conical surface,
- a second inclined conical surface defined by said lockring abutting said first inclined conical surface,
- a first edge portion defined by said lockring groove located between said first bottom surface and said vertical side wall portion, and
- a second edge portion defined by said lockring located between said second bottom surface and said outer side wall portion,
- said second edge portion being spaced from said first edge portion for dividing a force between axial side pressure forces transferred from said outer side wall portion to said side wall portion and radial pressure forces transferred from said second bottom portion to said first bottom portion when said pneumatic tire is inflated, the spacing between said first edge portion and second edge portion prevents movement of said lockring out of said lockring groove by rolling when said force is divided.
8 more elements
Dependencies are inferred from the claim text.