Patent ID: 7143877
Filing Date: 2006-12-05
Classification: B64D,F16C,F16F

Abstract:
1. A link comprising: a rod having a connection member at each end with an axis going through both connection members, wherein said rod includes a fusible zone in a form of a narrow section lying between a first rod portion connected to a first of the connection members and a second rod portion connected to a second of the connection members, said fusible zone configured to break when tensile force to which said link is subjected is greater than a predetermined value; a body coaxial about said axis and secured at one end to the first rod portion, said body presenting at its other end an end wall having an orifice through which the second rod portion is capable of sliding, said body defining a cavity in which the fusible zone is housed, together with a collar formed around the second rod portion configured to slide into said cavity in an event of the fusible zone breaking; a plurality of teeth formed on an inside wall of the body, said teeth being configured to be broken by the collar following breaking of the fusible zone; and means for preventing return movement of the second rod portion after the fusible zone has broken, wherein said plurality of teeth, while being broken by said collar, absorb a shock in the event of the fusible zone breaking, and wherein said plurality of teeth are formed on the inside wall of the body in an annular chamber defined by the collar and by the end wall of the cylinder body.