Active head restraint utilizing solenoid activation and bar linkage transmission

US8408645B2 · kind B2 · utility

Assignee

• GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

• Paul W. Alexander · Ypsilanti, US
• Leigh A. Berger · Brighton, US
• Michael G. Carpenter · Romeo, US
• Dale Drew · Grosse Pointe Farms, US
• Michael E. Kilpinen · Rochester Hills, US
• Clayton J. Hayes · Romeo, US
• James A. Smith · Chatham, US

Key dates

• Filing date: Jun 2, 2010
• Grant date: Apr 2, 2013
• Expiry date: Jun 29, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60N2/888
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

An active head restraint for supporting the head of an occupant, includes a shell, and an actuator disposed within the shell, wherein the actuator further includes a spring-biased bar linkage system pivotally coupled to the shell, a radial ratcheting sector coupled to the linkage system, a pawl selectively engaging the sector, and a solenoid drivenly coupled to the pawl, and configured, when activated, to cause the pawl to disengage the sector.