PURPOSE: To perform loading and unloading by one person with respect to a truck, by automatically releasing the locking of the front support leg of a grain tank when said tank is allowed to approach the track and continuously pushing the tank to release the locking of the rear support leg thereof.
CONSTITUTION: When a grain tank 3 is allowed to approach the rear of a bed 2 and further moved, a fixed wheel 6 rides on the bed 2 and the roller 20 provided to the lower end of one side 19 of a look release lever 18 is brought into contact with the rear end 24 of the rear body 2. When the grain tank 3 is further pushed in, the lock release lever 18 is rotated in a clockwise direction and the link 22 mounted to the leading end of the other side of said lever 18 by a shaft 23 is moved in an diagonally upward direction and, therefore, a lock apparatus 14 is rotated in the clockwise direction through the shaft and the leading end 17 thereof is detached from a lock step part 12. Therefore, a front support leg 10 becomes a free state and, when the tank is further pushed in, the front support leg 10 is brought into contact with the rear end 24 of the bed 2 to move and the grain tank 3 is mounted on the rear body 2. When the grain tank 2 is unloaded from the rear body 2, the front support leg 10 and a rear support leg 26 are respectively revolved to the original positions under their own wts. to become a use state.
TAKEMURA KATSUTOSHI
NOGUCHI HIROTOSHI
NOGUCHI SEISAKUSHO KK