Cable guide for bicycle frames and method for increasing frame strength
US5470091A · kind A · utility
9Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1992 |
| Grant date | Nov 28, 1995 |
| Priority date | — |
| Expiry date | Jul 31, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S188/01
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A bicycle frame having improved fatigue life of the frame. Cable entry/exit points for internally routed control cables are formed to produce strategically reduced stiffness zones so as to reduce peak stresses in the frame. Preferably, dimples are formed in the bicycle frame tubes with bulkhead walls deformed at an angle between 45 and 90 degrees and transverse to a line through the axial center of the tubes. Cable access holes formed in the bulkhead have a low friction plastic insert cable guide retained in the hole to provide aesthetic enhancement and weather seal for the tubing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.