Motorcycle
US4723621A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1986 |
| Grant date | Feb 9, 1988 |
| Priority date | — |
| Expiry date | Oct 29, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62K25/286
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A motorcycle [1; 101; 201] includes an engine unit [2] disposed centrally in the motorcycle [1; 101; 201], front swing arms [14, 18] having rear ends operatively connected to the engine unit [2] for vertical swinging movement, with a steering arm [26] which supports a front wheel [15] being attached to the front ends of the front swing arms [14, 18], and a rear swing arm [33] supporting a rear wheel [34] on a rear end thereof and having a front end operatively connected to the engine unit [2[ for vertical swinging movement. The motorcycle [1; 101; 201] further includes a front subframe [5; 205] detachably mounted on a front portion of the engine unit [2], the rear ends of the front swing arms [14, 18] being pivotally coupled to the front subframe for vertical swinging movement. The motorcycle [101] further includes a support frame [110] attached to the front subframe [5] and supporting a steering post [8], the support frame [110] having an air cleaner case [113]. The motorcycle [201] further includes a rear subframe [206] detachably mounted on a rear portion of the engine unit [2], the front end of the rear swing arm [33] being pivotally coupled to the rear subframe for vertical sw…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.