Sheet feed mechanism

US8118300B2 · kind B2 · utility

Assignee

• Silverbrook Research Pty Ltd · AU

Inventors

• Geoffrey Philip Dyer · Sydney, AU
• Robert John Brice · Sydney, AU
• Attila Bertok · Sydney, AU
• Gregory Michael Tow · Sydney, AU
• Tobin Allen King · Sydney, AU
• Kia Silverbrook · Sydney, AU

Key dates

• Filing date: May 19, 2010
• Grant date: Feb 21, 2012
• Expiry date: May 19, 2030

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2405/1117
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A sheet feed mechanism includes a chassis for supporting a stack of sheets; a top sheet engaging member for engaging a top most sheet of the stack; a stack engaging structure, a first end of the stack engaging structure engaging the stack of sheets to bias a top most sheet of the stack of sheets against the top sheet engaging member, the stack engaging structure being supported from the chassis by a resilient member; a friction surface extending perpendicularly from a second end of the stack engaging structure opposite to the first end; a lock mechanism having a lock arm hingedly connected to the chassis, the lock mechanism including a biased contact foot for engaging the friction surface to retard a rectilinear movement of the stack engaging structure; and an actuator for engaging and disengaging the contact foot from the friction surface.