Double locking snap hook
AssigneeSherrill, Inc.
InventorCornelius McDaid
Life of this patent
Estimating the term…
Abstract
A snap hook with front and rear locks that must be disengaged for the gate to open. The body has a base and a J-shaped hook. A gate has two parallel, spaced fingers extending from an end of a gate arm. As the gate pivots between open and closed positions, a stop pin extending between the arms and through a curved slot in the body slides within the curved slot. A front lock pivots between a locking position, where shoulders in the gate arms abut an edge on the front lock, preventing the gate from pivoting open, and an unlocking position, where the shoulder does not abut the front lock edge. The rear lock pivots between a locking position, where the curved slots on the rear lock are not aligned with body curved slot, and an unlocking position, where the curved slots are aligned, and the gate can pivot open.
Claims9
A double locking snap hook comprising:
- (a) a body having a base with a front, a rear, and sides, and a hook extending from the rear of the base to a hook free end and forming an interior with an opening between the hook free end and the front of the base;
- (b) a gate having an arm with an arm free end and a pivot end, a pair of parallel fingers extending generally perpendicularly toward the rear from the pivot end to a finger free end with a finger gap between the fingers, a stop pin extending through the finger gap between the fingers and through a base curved slot in the base within the finger gap, the gate mounted to the base to pivot between a closed position wherein the arm extends across the opening and the stop pin is at a closed stop end of the curved slot, and an open position wherein the arm extends into the interior and the stop pin is at an open stop end of the base curved slot;
- (c) a front lock mounted to the front of the base to pivot between a front locking position wherein a locking edge on the front lock engages a shoulder on the gate thereby preventing the gate from pivoting from the closed position, and a front unlocking position wherein the edge is disengaged from the shoulder thereby not preventing the gate from pivoting to the open position;
- and
- (d) a rear lock mounted to the rear of the hook to pivot between a rear locking position where at least one rear lock curved slot through which the stop pin extends is not aligned with the base curved slot thereby retaining the stop pin at the closed stop end of the base curved slot, and a rear unlocking position where the rear lock curved slot is aligned with the base curved slot thereby permitting the stop pin to slide in the base curved slot and not preventing the gate from pivoting to the open position;
- (e) whereby, when the front lock is in the front unlocking position and the rear lock is in the rear unlocking position, the gate can pivot to the open position.
Dependencies are inferred from the claim text.