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US 2014/0231558 A1Published application
Shredder
OwnerHermann Schwellinginventor
Life of this patent
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Abstract
The invention relates to a shredder/document shredder for sheet-shaped material, such as paper and material of the like or similar data storage media, having a thickness sensor which protrudes at least partially into a receiving slot. According to the invention, the thickness sensor does not change its position if too much material to be shredded (for example, paper) passes into the receiving slot, but rather pivots about its rotational axis as a result of the friction with the material. A switch is actuated by way of the pivoting movement, as a result of which the electric drive of the shredder is interrupted.
Claims20
A shredder comprising:
- a cutting unit at a top of the shredder;
- a collecting container below the cutting unit;
- a receiving slot formed in the cutting unit for receiving material to be shredded;
- an outlet opening formed on an underside of the cutting unit for discharging shredded material into the collecting container;
- a cutting roller pair which is driven by an electric motor, situated between the receiving slot and the outlet opening;
- an intake region formed in the receiving slot, for directing material to be shredded into the cutting roller pair;
- a thickness sensor in the intake region, wherein:
- the thickness sensor protrudes into the receiving slot, and
- the thickness sensor is arranged such that the thickness sensor can be pivoted about a stationary longitudinal axis which runs parallel to the receiving slot, and
- a gap is formed by an active part and a passive part of the thickness sensor, and the gap remains substantially constant in the case of a possible pivoting movement of the active part and/or the passive part.
7 more elements
Dependencies are inferred from the claim text.