A shock absorber for a vehicle having a damper and a first and second springs mounted coaxially around the damper and a preload adjuster for partially compressing at least one of the springs independently of the compression stroke. The dividing wall reduces heat loss by impeding the transfer of heat from the high-temperature devices to the low-temperature devices. The web storage includes a take-out port which is coupled to the first opening. A multi-view thermopile array is disposed opposite an outer circumferential surface of the lateral end of the fixing rotator in the axial direction thereof and angled relative to the fixing rotator to detect a temperature of the fixing rotator. In both cases, the remaining insulating film is polished off.