Lift systems with continuous in-rail charging

US8978905B2 · kind B2 · utility

Assignee

• LIKO Research & Development AB · SE

Inventors

• Robert Bergenstr{dot over (a)}le · Älvsbyn, SE
• Mattias Andersson · Sundbyberg, SE

Key dates

• Filing date: Jun 24, 2011
• Grant date: Mar 17, 2015
• Expiry date: Oct 16, 2033

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B66D3/18
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

Rail-mounted lift systems are disclosed. In one embodiment, the lift system includes a rail having at least one conductor positioned on an upper interior surface of the rail. A carriage may be slidably disposed in the rail for relative movement to the rail. The carriage generally includes a carriage body, at least one pair of support wheels rotatably coupled to the carriage body and slidably engaged with the rail, and a conductor truck comprising at least one conductive roller rotatably attached to the conductor truck. The conductor truck may be mounted to the carriage body with a biasing member upwardly biasing the conductive roller into rolling engagement with the at least one conductor. A lift unit may be coupled to the carriage body and includes a motor paying out and taking up a lifting strap. The lift unit is electrically coupled to the at least one conductive roller.