JPH0280144U - - Google Patents

Description

[Brief explanation of drawings]

Figures 1 to 4 show the operating procedure in an embodiment of the present invention. Figure 1 shows the state in which the gate is suspended by a lifting beam, Figure 2 shows the state in which the gate has landed, and Figure 3 shows the state in which the gate has landed. Further, the lifting beam is lowered and the hook is released, and FIG. 4 shows a state where the gate is caught in the middle for some reason when lowering the gate. FIG. 5 is a state in which the gate is supported by a suspension device provided at the top of the embankment, and FIG. 6 is an overall view of the embankment body in the state shown in FIG. 5. Figures 7 to 11 show the operating procedure of the conventional device. Figure 7 shows the lifting beam being lowered onto the gate that has landed, and Figure 8 shows the lifting beam being lowered further. Figure 9 shows the gate being lifted up by a lifting beam, Figure 10 shows the gate being lifted down, and Figure 11 shows the gate getting caught in the middle for some reason when lowering the gate. Indicates the state of landing and the state of landing. 1... Gate, 2... Lifting beam, 3... Hanging hook, 4... Counterweight for hanging hook,
7... Hanging pin, 10... Landing detection rod, 12... Connecting rod, 13... Hook stopper, 14... Support.

Claims (1)

[Scope of utility model registration request] In a gate hook device that lifts and suspends a gate by engaging a hanging hook rotatably attached to a lifting beam with a hanging pin provided on the gate, the position on the back of the lifting hook when the lifting hook and the lifting pin are engaged. This device for preventing the hook from coming off of a gate is equipped with a hook stopper that prevents the lifting hook from coming off, and a mechanism that retracts the hook stopper to a position where the lifting hook can rotate when the gate lands.