A LIFT GATE DEVICE FOR TRUCKS WITH IMPROVED STRUCTURE TO PREVENT WIRE DAMAGE

摘要

The present invention relates to a lift gate device for a freight car having an improved structure for preventing wire damage, and more specifically, as a lift gate device for a freight car having an improved structure for preventing wire damage, which is installed opposite to each side of the rear end of the freight car. A lift elevating support frame, a lift guide that is respectively fastened to the inside of the lift elevating support frame to elevate and descend, a gate that is respectively coupled to the lift guide to open and close, and a hold bracket that is fastened to an upper end of the lift elevating support frame. A lift elevating device unit; A driving cylinder installed horizontally at the rear end of the loading box of the freight vehicle and driven to elevate and lower the lift guide of the lift elevating device; And a lift driving force transmission unit consisting of a connection structure between a plurality of M/C rollers and wires so that the lift guide of the lift lifting device can slide up and down in response to the driving of the driving cylinder forward and backward. It is done. According to the lift gate device for a freight vehicle having an improved structure to prevent wire damage proposed in the present invention, the lift lift support frame and the lift lift support frame that are installed opposite to each other on both sides of the rear end of the freight car are fastened to the inside. A lift elevating device unit having a lowering lift guide and a gate coupled to the lift guide to open and close, and a hold bracket fastened to the upper end of the lift elevating support frame, and a lift elevating unit that is horizontally installed at the rear end of the loading box of a freight vehicle. A lift consisting of a drive cylinder that is driven to lift the lift guide and a connection structure between a plurality of M/C rollers and wires so that the lift guide of the lift lift unit can slide up and down in response to the drive of the drive cylinder forward and backward. Consisting of a driving force transmission unit, but by configuring the lift M/C roller to be fastened to the hold bracket having an inclined angle, the wire used for traction of the gate is prevented from colliding with the wire in the vertical rail of the lift lifting support frame. It is possible to extend the life of the wire through the prevention of damage to the wire accordingly. In addition, according to the lift gate device for a freight vehicle having an improved structure for preventing wire damage of the present invention, the lift M is attached to the hold bracket with an inclined angle to prevent damage to the wire for traction of the gate used for loading or unloading cargo By configuring the /C roller to be fastened, long life is possible by preventing damage to the wire for traction of the gate, and periodic replacement management and cost can be reduced according to the extension of the wire life.