Steering wheel
US4988973A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1988 |
| Grant date | Jan 29, 1991 |
| Priority date | — |
| Expiry date | Aug 19, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D1/046
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention relates to steering wheels of automobiles provided with communication systems employing light transmitters, comprising a steering shaft, a boss plate fixed on the tip of the steering shaft, a ring portion mounted to said boss plate, light emitters and light receivers provided with said boss plate therebetween to perform light communication, the light emitters comprising a plurality of emitting units while the light receivers comprise a plurality of receiving units corresponding to the emitting units of the emitters so as to transmit and receive signals with each other, thereby constituting a communication unit with a pair of emitting and receiving units, and a plurality of through holes formed on the boss plate in correspondence to the light emitting and light receiving units, which are more than the communication units and enable all the light signals of all the units for light communication to pass therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.