Return device for a direction indicating switch

US3965313A · kind A · utility

Assignee

• SWF-Spezialfabrik fur Autozubehor Gustav Rau GmbH · DE

Inventors

• Erich Mutschler · Bietigheim-Bissingen, DE
• Adam Weber · Bietigheim-Bissingen, DE

Key dates

• Filing date: Oct 24, 1974
• Grant date: Jun 22, 1976
• Expiry date: Oct 24, 1994

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60Q1/425
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A return device for a direction indicating switch used with a vehicle steering wheel, comprises a movable switch member which is of arcuate form and is displaced by actuation of a lever member through an arcuate path of movement in order to displace a release spring which is pivotally mounted thereon to either a first or a second indicating position on respective sides of a neutral position. A release member which is in the form of a pin carried on a member which moves through an arc at a smaller radius than the switch member and which pin is adapted to be positioned in a neutral position when the steering wheel of the vehicle is steered straight ahead. When the steering wheel is turned, the release pin is moved so that it initially depresses a tangentially extending resilient portion of the spring which is provided on each side of the neutral position. The construction includes a guide means for guiding each spring side so that when it moves in a given direction away from neutral, the spring end is deflected into the path of the release pin. During the return move of the release pin with the steering wheel, it drives the spring back to a neutral position and it is centered in the …