A haptic input device comprises a hexapod or pentapod parallel linkage mechanism with force feedback effected by proportional control of magneto-restrictive fluid brakes constraining the measurement of the struts of the mechanism, through their base nodes. It is therefore possible to prevent light response from being reduced by the aggregation of the luminophore molecules during evaporation of the organic solvent, which is a drawback of forming films from conventional mixed-type pressure-sensitive paints. In order to facilitate venting of gas pressure from within the container, and to facilitate removal of the closure from the container by consumers, the closure includes one or more positive stop elements which engage the container after the sealing liner of the closure has been sealingly engaged therewith. A sheet detecting portion detects, in accordance with the rotation of the contact piece about the shaft, a state where one sheet is loaded on the sheet loading portion, and a state where sheets as many as a predetermined number of sheets regarded as a full load state are loaded on the sheet loading portion. The direction controller and the speed controller are mounted in the cap chamber for rotation about the rotary axis. According to the invention, the protective hood anti-rotation lock has a form-fit unit which is provided for anti-rotational locking of the protective hood unit in relation to the portable power tool in the event of a tool breakage.