Latching and elevating mechanism for a roof hatch cover that...

Details Latching and elevating mechanism for a roof hatch cover that... Latching and elevating mechanism for a roof hatch cover that...

F - Mech Eng,Light,Heat,Weapons

41

H

296/2

F41H 5/22 (2006.01) F16J 13/18 (2006.01)

Patent

CA 2007086

ABSTRACT Known roof hatch covers used in tank turrets are assisted during the opening and closing movement by long tension springs, an arrangement which takes up a great deal of space. A disadvantage in this is that the space that is used by the springs is no longer available to accommodate armoured protection. Further- more, because of the need to provide optimal armoured protection, it is impossible to incorporate any safety measures to prevent improper operation of the latching mechanism within the roof hatch cover. In order to ensure that maximum amount of available space for armoured protection both within and outside the roof hatch cover and to preclude any possibility of improper operation, there is provided an inhibiting system for the latching mechanism that is arranged on the outer side of the roof hatch cover. The inhibiting system acts to prevent the rotation of the shaft that connects the manual operating system of the hatch while the hatch is being opened. The roof hatch cover is also provided with at least one space-saving torsion spring that is arranged around a pivot shaft.

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