Method for pour casting roller skate wheel
US4603025A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 1984 |
| Grant date | Jul 29, 1986 |
| Priority date | — |
| Expiry date | Jul 25, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60B33/0028
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method of molding an integrated bearing and resilient wheel structure, for a roller skate or the like, and a resulting product having a single bearing. The bearing of the wheel has a centering surface aligned with the bearing axis and exposed for engagement by a mold. The mold defines the shape of the wheel, including its cylindrical running surface, and includes a centering surface that is centered on the running surface of the wheel and is exposed to engage the bearing. The relative position of the centering surfaces of the mold and bearing are so related that, when the surfaces are interengaged, mold spaces extend from oppositely axially directed surfaces of the rotary bearing part. The mold and bearing centering surfaces are engaged to produce centering, and, while shielding the space between the rotary and stationary parts of the bearing from entry of fluid, the mold is filled with a charge of fluid resin. The charge is allowed to form a resilient body intimately about the rotary part of the bearing, thereby producing an in situ molded, integrated bearing and resilient wheel structure. The resulting wheel structure has resinous flanges, integral with the wheel body, at the o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.