Safety hook with immobilizable locking lever
AssigneeEtablissements Ludger Simond société anonyme
InventorLudger Simond
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Abstract
A safety hook in accordance with the invention comprises a body closed by a pivoting finger which can be prevented from rotating by a transverse locking lever. The locking lever is articulated on a lever pivot on the pivoting finger and has a notch engaging over a front lug of the body in the locked position, into which it is biased by a spring. A mobile abutment can be selectively positioned on the locking lever to prevent it pivoting in the unlocking direction. This assures reliable locking by means of a Locking lever that is easy to manipulate and immobilize.
Claims9
A safety hook which locks automatically including a safety hook body having an opening closed by a pivoting finger, the pivoting finger having a first end, the pivoting finger being articulated at said first end about a transverse pivot, a transverse locking lever mounted to pivot about a lever pivot on the pivoting finger, between a locked position toward which it is biased by spring means and in which it mechanically connects said pivoting finger with an opposite portion of said body to prevent rotation of said pivoting finger, and an unlocked position in which the locking lever releases said pivoting finger so that the pivoting finger can rotate in the opening direction, and immobilizing means for selectively immobilizing said locking lever against rotation away from said locked position to prevent unlocking of said safety hook and comprising a mobile abutment, mounted on said locking lever, and movable on guides between an immobilizing position in which it bears against a portion of said body to oppose pivoting of said locking lever, and a release position in which it remains away from said portion of said body to allow unlocking pivoting of said locking lever.
Dependencies are inferred from the claim text.