Abstract: A container 1 has a support member 3 which ascends and descends freely and is provided at back of a container body 2, a top connecting member 11 which is fixed at front of the container body 2 and can couple and decouple with a carrier 45, a bottom connecting member 16 which is provided at the front of the container body 2 so as to be able to move and which couples and decouples with the carrier 45, and transmitting members 21, 40 which transmit the movement of the bottom connecting member 16 to the support member 3 and raise and lower the support member 3.

Abstract: A cargo-work vehicle for detachably supporting a container has lift arms for rotatably supporting the container and a single cooperating auxiliary arm which ensures that the attitude of the container is held constant when the container is loaded and unloaded. A dump pin is also provided for fixing the container relative to the lift arms so that the container can be rotated relative to the vehicle body for dumping of the container load. The single auxiliary arm is advantageous because it can be located centrally of the vehicle and substantially underneath the loaded container. Such placement of the auxiliary arm affords compactness, reduces costs, and allows a single auxiliary arm to maintain the desired, constant attitude of the container during loading and unloading of the container.