Patent ID: 6402223
Filing Date: 2002-06-11
Classification: B65D,B65F,E05D,E05F,E05Y

Abstract:
A roof door opening and closing device for a roof opening type container, comprising:a pair of roof doors provided to an upper end of a container body which has a box-shaped configuration, in a manner such that the pair of roof doors can open and close the upper end of the container body; a pair of first links having one ends which are pivotably connected to a pair of driving shafts respectively arranged at both sides of the container body and the other ends which are pivotably connected to the pair of roof doors; a pair of second links having one ends which are pivotably connected to two pairs of brackets each pair secured to the upper end of the container body between the pair of driving shafts and the other ends which are pivotably connected to the pair of roof doors; a reduction gear for velocity-reducing rotation force of a handle which is installed on the container body; a link mechanism for transferring the rotation force which is velocity-reduced by the reduction gear, to the pair of driving shafts which are respectively coupled with the pair of roof doors; and a plurality of springs installed on the pair of driving shafts and the two pairs of brackets in a manner such that spring force acts on the pair of driving shafts and the pair of second links when the pair of roof doors are completely opened or closed.