Control system for foldable outside rearview mirror
US4798967A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Mar 24, 1988 |
| Grant date | Jan 17, 1989 |
| Priority date | — |
| Expiry date | Mar 24, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R1/074
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A control system for a foldable outside rearview mirror comprises an electric motor having an electric motor circuit, an operation switch, trigger element connected with the operation switch for outputting a trigger pulse in response to actuation of the operation switch, timer element connected with the trigger element for outputting a pulse of a predetermined pulse width to drive the electric motor only for a set time upon receipt of the trigger pulse from the trigger element, polarity changing element having a pair of outputs of high and low level and formed for reversely switching the electric motor by inverting the pair of the outputs upon receipt of the trigger pulse from the trigger element, and switching element for switching a voltage applied to the electric motor to react or fold a rearview mirror upon receipt of the output of the polarity changing element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.