Swimming pool cover locking or releasing device, has tab retaining unit interlocked with recess of tab along external part in introduction direction of tab in introduction orifice when unit is in locked position

摘要

The device has an introduction orifice for introducing a buckle (2), a tab (21), and a retaining unit for retaining the tab in the orifice, where the retaining unit moves between a releasing position and a locking position. The retaining unit is maintained during the introduction of an external part of the tab in the releasing position, and interlocked with a recess of the tab along the external part in the introduction direction of the tab in the orifice in the locking position. The retaining unit includes a hook (3) whose end is penetrated in the recess of the tab.