초록 ▼

A positive-action device for bringing about the rotary movement of a hatch, as a result of the traversing stroke of a shaft moving axially within a fixed structure, particularly in submarine turrets, includes an actuating component integral with shaft and moving with the latter in a direction parall

A positive-action device for bringing about the rotary movement of a hatch, as a result of the traversing stroke of a shaft moving axially within a fixed structure, particularly in submarine turrets, includes an actuating component integral with shaft and moving with the latter in a direction parallel to the longitudinal axis of the shaft, and an articulated kinematic mechanism the upper end of which is hinged to hatch with an interposed flexible safety device and the lower end of which is rotationally integral with a regulating component rotating around the axis of a fixed pivot, there being associated with the regulating component a mechanism of bistable type for reliably maintaining the settings corresponding to the open and closed positions of the hatch, and end-of-stroke devices.

대표청구항 ▼

A hatch with a positive-action locking device, comprising: a housing extending along a longitudinal axis; a cover pivotally mounted on said housing between a closed position corresponding to closure of the hatch and an open position; an axially displaceable shaft in said housing shiftable between ou

A hatch with a positive-action locking device, comprising: a housing extending along a longitudinal axis; a cover pivotally mounted on said housing between a closed position corresponding to closure of the hatch and an open position; an axially displaceable shaft in said housing shiftable between outward and inward positions; an articulated kinematic mechanism in said housing including: a resilient body hinged to the cover in said housing, and link means operatively connected with said resilient body for displacing same; a fulcrum fixed on said housing; bistable means articulated to said housing for maintaining said open and closed positions of said cover; a regulating element mounted pivotally on said fulcrum and operatively connected with said bistable means and with said link means for displacing said link means linearly and for swinging said link means from one side to another past alignment with said fulcrum upon displacement of said regulating element from a position corresponding to the closed position of said cover to a position corresponding to said open position of said cover; and an actuator on said shaft engageable with said regulating element upon shifting said shaft to the inward position for displacing said regulating element.