Hollow shell frames for bicycles and other human-powered vehicles and method for making same
US5464240A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1994 |
| Grant date | Nov 7, 1995 |
| Priority date | — |
| Expiry date | Jan 31, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G5/1054
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A hollow shell frame for bicycles and other human powered vehicles is disclosed. The frame is constructed from plastic molded partial shells that are assembled into tubing that comprises the frame. The partial shells have protrusions and receptacles joining faces of their skins that are used to join the shells together to form the tube. This results in a lightweight, durable and aesthetically pleasing frame. In an alternative embodiment, the partial shells have protrusions and receptacles within their interiors for additional strength. Additional fasteners such as screws, bolts or rivets may be used for reinforcement of the partial shells. A method for manufacturing the frame is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.