| 摘要 |
Gate (200) comprises frame (202), upper pivot member (210), lower pivot member (220), gate opening and latching mechanism (230), means for closing the gate and mounting channel (300) for the upper pivot member (210) and the lower pivot member (220). Upper pivot member has collar (202) having cam upper surface (213) on which movable collar (214) having roller (215) moves over when elongate element (216) of the frame rotates about its longitudinal axis during opening and closing of the gate. The lower pivot member is collar (221) about which heel (205) of the elongate element (216) rotates allowing the gate to pivot into opened and closed positions. The gate opening and latching mechanism (230) controls the movement of locking bolt (223) relative to latch (250) mounted on a support and it comprises locking handle (232) movable vertically between open and closed positions. The mounting channel (300) has means for securing the channel to gate support structure (A) and for adjusting its vertical orientation, so that the mounting channel is vertical and allows the gate to be hung plumb. |
