| 摘要 |
he set of shields with handles is designed for the actuation of the doorlock and for opening (closing) of entrance doors of residential, public and other buildings. The shields have speciffic ribbing in the most loaded zones - the place where handle (3) rests, connected by a bushing (6), spacer (5) and securing ring (54), and the places where the three screws (10) fitting the set to the door are fixed. The outer shield (1) is thicker than the inner one (8) and differs from it by extra ribbing in the middle and along the rim of the hole for the safety lock. To it, on its external side, an additional cleat (7) is fixed which matches its shape and is within its dimensions. The thickness of the external shield allows that during its assembly the symmetrical safety lock should remain completely concealed and protected from breaking. 2 claims, 7 figures
|
