| 摘要 |
FIELD: construction. ^ SUBSTANCE: hatch of hidden engineering systems includes frame, door arranged in the form of frame with mounted roller latches, which fix door position relative to frame by means of response planks installed on frame, and mechanism of door displacement. Hinges fixed on door frame for axes of door displacement mechanism. Mechanism of door movement comprises platforms with slots spaced along width and height of frame and attached levers, hingedly connected to platforms with the help of rivets-axes, stand fixed to two levers spaced along height, catcher with slot, installed on frame, and traction rods. Axes are fixed to levers, being arranged in slots of platforms and connecting levers with traction rods, axes of door movement mechanism are installed on levers spaced along height. Stand is connected to frame by spring. Ledge is arranged on one of levers, entering slot of catcher. ^ EFFECT: hatch reliability improvement. ^ 8 cl, 3 dwg |
