Coupling mechanism for releasably interconnecting a first and a second mechanical member and a linear actuator equipped with such a coupling mechanism

US8813590B2 · kind B2 · utility

Assignee

• AKTIEBOLAGET SKF · SE

Inventors

• Pontus Claesson · Helsingborg, SE
• Torbjörn Lövgren · Kode, SE

Key dates

• Filing date: Nov 18, 2009
• Grant date: Aug 26, 2014
• Expiry date: Nov 19, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T403/32254
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The invention refers to coupling mechanism and a linear actuator incorporating such a mechanism for releasably interconnecting first and second mechanical members (1, 2), longitudinally movable relative to each other, a first one of said mechanical members (1) pivotably supporting an end (F) of a first link of a knee link mechanism (3), also incorporating a second link member (3b), which first and second link members are pivotally connected to another in a knee joint (E), a control rod (4) pivotally connected to said knee joint (E), the end (D) of the second link member (3b) remote from the knee joint (E) being connected to a hook arm (5), the opposite end of which is pivotally supported at a support point (B) stationary positioned relative to said first mechanical member (1), said hook arm (5) having a hook (5a) facing said second mechanical member and being in mechanical engagement (A) with a shoulder (6, 6′) on said second mechanical member (2) as long as the said knee joint (E) is kept in a substantially stretched position by said control rod (4), which is kept stationary under influence of a holding force exerted in connection to said first mechanical member (1), but which is …