| 摘要 |
FIELD: transport. ^ SUBSTANCE: invention relates to automotive industry, in particular, to closed box opening device. Closed box 1 mounted on truck chassis 2 comprises lateral side divided along horizontal into top 3 and bottom 4 parts opening downward and upward, respectively. Parts of the sides are articulated by crank-slide mechanisms wherein side bottom edge makes mechanism starting link. Said mechanisms are arranged on side end faces, directly in front and rear walls 7 or in vertical props of body frame. Side top part is coupled with closed box vertical walls and mechanism levers-rods articulated and spaced apart along side top part by means of guide supports to make a pair of spaced apart outer and inner rollers. Outer rollers of each support are secured on closed box vertical walls while inner rollers are secured on either on them or at top angles on the side top part. Inner surfaces of closed box front and rear walls have shaped roller guides. ^ EFFECT: ease and reliability of opening. ^ 10 cl, 11 dwg |
