An article such as grass clippings collected by work equipment, such as a lawn mower, and stored in a container is allowed to be transported to an area for discarding such a collected article in an energy efficient and a work efficient way without imposing any undue burden on the operator. A collected article container device (70) provided with a collected article container and capable of traveling autonomously is detachably connected to a work equipment main body (20) that has a work unit such as a cutting blade device (40) and is able to travel, the container device (70) being configured to travel in a detached state to a collected article destination by itself. Further, the container device (70) is provided with a lifting device (84) that moves the rear wheels (76) vertically relative to a device frame (72).
