Hoist lock

US5755476A · kind A · utility

Inventor

• John Hosking · Kingston, AU

Key dates

• Filing date: Sep 27, 1996
• Grant date: May 26, 1998
• Expiry date: Sep 27, 2016

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B66C1/442
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

There is provided a gripping device with lifting arms mounted for relative rotational movement on a slider and having free ends spaced from each other and adapted to receive a load there-between. An arm link assembly coupled to the arms is movable between a gripping position and a release position to respectively close the arms to grip a load and to separate the arms to receive a load. An over-center clamp is incorporated into the device to move the arm link assembly between the gripping position and release position and to hold the arm link assembly in the release position for the arms to receive a load.