Body frame for bicycle
US9440701B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2015 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | May 21, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62K19/28
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Disclosed is a frame body for a bicycle which is able to provide higher strength and reduce the weight of the body frame in such a way to use a carbon material even when the outer diameters of a top tube and a bottom tube are thinner same as the thickness of the tubes forming a classical type body frame. In the body frame for a bicycle, at least one tube among the top tube, the bottom tube and the seat tube is made of a carbon material outer tube of a pipe shape the diameter of which is same from one end to the other end, and an inner tube made of a carbon material in a tubular shape and having a cross section area smaller than the cross section area of the outer tube is fixedly installed in the inside of a predetermined section of the outer tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.