INSTALLING STRUCTURE OF TRUCK HANDLEBAR

PROBLEM TO BE SOLVED: To simplify folding-up and return operation of a carriage handle, and prevent piecemeal vibration of the handlebar at transport time by sandwiching a handle base end part by both base shaft parts of an operation bar and a lock bar, and moving the lock bar downward more than the base end of the handle by pushing down the operation bar. SOLUTION: A handlebar 4 in a standing-up condition is put in a condition of being prevented from rotating with a support shaft as the center since its base end part is sandwiched by a base shaft part 72 of an operation bar 7 and a lock bar 5. In the case of folding up the handlebar 4 in this standing-up condition, a required process is only to step a main bar part 74 of the operation bar 7 by a foot. When the main bar part 74 is stepped by a foot, the lock bar 5 moves to a lower part of a long hole 22, and the lock bar 5 can slip out of a base end part of the handlebar 4. When the lock bar 5 slips out, the handlebar 4 can be inclined forward with the support shaft 3 as the center, and it is formed as a structure that the handle 4 can be easily folded up on a load-carrying platform 11.