Abstract: In a method for the manufacture of padding material from inherently rigid flat material, such as cardboard packaging or the like, the flat material is cut into parallel strip sections, which in the vicinity of connecting areas spaced in the longitudinal direction of the strips remain partly interconnected. Between the connecting areas the strip sections are so deformed perpendicular to the flat material extension that transversely adjacent strip sections are bent in opposite directions. A manufacturing apparatus is constructed in the manner of a document shredder with a cutting mechanism having cooperating cutting rollers, which have circumferential grooves, which during the passage of the flat material at regular intervals lead to an interruption of the cut.

Abstract: As the stripper (20) for the cutting mechanism (13) of a document or paper shredder (11) is provided a plastic part, which can be injection moulded in one piece and entirely surrounds the shaft (18) of the cutting rollers (15) in the gap (17) between the cutting disks (16). In the overlap area (23) between the two cutting disks is provided a thin, flexible stripper web (24), which makes it possible to open the separation point (36) of the stripper separated with respect to the flexible circumferential portion (24) to such an extent that it can be snapped over the shaft (18). The stripper can be manufactured as a single component or as a stripper block with several to all the strippers of a cutting roller. This leads to a low friction stripper preventing cut particles winding round the shaft.

Abstract: A document shredder (11) has a cutting mechanism (12) constructed as a chassis and in which the cutting rollers (16) are mounted so as to contrarotate. They are designed as disks cutting on both sides for particle cutting. Over the entire length of the cutting rollers (16) extend stripper elements (28, 29), whose individual strippers (31) are combined into a block by means of longitudinally directed connecting elements (33). As they engage by more than 180.degree., almost 270.degree., around the shaft cross-section (18), two stripper elements (28, 29) are connected in mutually fitting manner in the circumferential direction. The stripper elements can be made in one piece from injection moulded plastic and are also used for the connection of the two side walls (14, 15) of the cutting mechanism (12).

Abstract: A workplace document shredder is located with its cutting mechanism, gear and electric motor in a self-supporting, integral casing which carries all the functional parts and circumferentially surrounds the same. The bearings of the cutting rollers are contained in bearing inserts, which are inserted from above in corresponding recesses of the casing. A container made from easily manufacturable material, such as corrugated paper, carries the apparatus and a hood is placed over it.

Abstract: A workplace document shredder is located with its cutting mechanism, gear and electric motor in a self-supporting, integral casing, which carries all the functional parts and circumferentially surrounds the same. The bearings of the cutting rollers are contained in bearing inserts, which are inserted from above in corresponding recesses of the casing. A container made from easily manufactureable material, such as corrugated paper, carries the apparatus and a hood is placed over it.

Abstract: A document shredder (11) has a cutting mechanism (13), which is driven via a gear (25) by an electric motor (26). In the return movement a diode (30) is connected in, which reduces the voltage supplied to the motor and therefore its maximum torque.This avoids material being jammed on the top of the cutting mechanism during the return movement in such a way that the cutting mechanism cannot be rotated again during the following forward movement.

Abstract: A cutting mechanism (11) for torsion cut has two cutting rollers (12, 13), cutting disks (14, 15), which in each case have a steep cutting face (22) and a sloping back face (23). The transitions between the latter and the roller body are generously filleted and the ratios between the cutting disk spacing, height, etc. are such that the opening (29) for the cut strips (28) has a compact and well rounded shape, so that the strips do not tend to get caught.

Abstract: For shredding EDP printouts in the form of zig-zag-folded web stacks, a feed mechanism is provided, which has several compartments rearwardly inclined somewhat with respect to the vertical. The webs are removed from the stacks standing therein via the web guide formed by the leading edge of the compartment. A projection formed by a wire crossbeam holds back the stack if it is drawn upwards during removal.