| 摘要 |
FIELD: construction. SUBSTANCE: gate has frame composed of stands, cantilevers, traverse pivotally connected with the cantilevers, pivotally interconnected shutters, guide rollers secured to the bottom shutter to permit movement along the stand, and balancing system. The top shutter is pivotally connected with the traverse and its height is less than the height of the traverse. The shutters are at an angle to each other. When the gate is closed the top shutter is inclined, and guide rollers are secured at a point that is no lower than the center of gravity of the shutter. EFFECT: improved design. |
