Object e.g. important document, security providing device, has handle fixed to upper cover by rivets and axle welded to end of cover that receives sheet around which heat resistant O-ring is held to ensure watertight joint

摘要

The device has a case (1) on which special flanges (2) are welded to allow fixation of sheets (3, 4, 5) using reamed cruciform screws (6). An upper cover (7) receives a sheet around which a heat resistant O-ring (8) is held to ensure watertight joint for the case. A handle (9) is fixed to the cover by rivets (10) and an axle (11) is welded to an end of the cover, where the axle is fixed to a lateral wall by an arched pin (12).