A winch used for tightening a strap to retain an article, which may be cargo, on the deck of a vehicle has a ratcheting mechanism which tightens the strap around a cylindrical shaft. In particular, the control system of the present invention provides a means of adjusting the angular positions of adjustable bottom sections of the bed to predetermined final positions via preset bottom coordinative action patterns carried out by a controller means. The display management program decides whether use of the display area is allowed to each processing unit, considering the relationship of the plurality of display areas requested from each processing unit R1-Rn. The system further includes a policy control and charging rules function node for detecting the instruction and for instructing a policy and charging enforcement function node to change value of the operator assigned policy control parameter for the subscribers. An oil duct penetrates the cooling lance axially and is connected to the oil inlet and outlet for guiding the oil through the cooling lance. The main body includes a first radiating element and a second radiating element separated from the first radiating element to form an opening therebetween.