SHREDDER THICKNESS WITH ANTI-JITTER FEATURE

摘要

A shredder includes a housing having a throat for receiving at least one article to be shredded, and a shredder mechanism received in the housing and including an electrically powered motor and cutter elements. The shredder also includes a detector that is configured to detect a thickness of the at least one article being received by the throat, and a controller that is configured to operate the motor to drive the cutter elements to shred the at least one article and to set a flutter threshold higher than the predetermined maximum thickness threshold, if the detected thickness is less than a predetermined maximum thickness threshold. The controller is also configured to thereafter continuously detect the thickness of the at least one article being inserted into a throat of the shredder; and to perform a predetermined operation responsive to the thickness detector detecting that the thickness of the at least one article is greater than the flutter threshold.

主权项

1. A method for operating a shredder comprising a housing having a throat for receiving at least one article to be shredded, at least one thickness detector for detecting a thickness of the at least one article to be shredded inserted in the throat, and a shredder mechanism received in the housing and including an electrically powered motor and cutter elements, the shredder mechanism enabling the at least one article to be shredded to be fed into the cutter elements and the motor being operable drive the cutter elements in a shredding direction so that the cutter elements shred the articles fed therein; the method comprising:
prior to operating the motor, detecting with the at least one thickness detector a thickness of the at least one article to be shredded inserted into the throat; in response to detecting that the thickness is less than a predetermined maximum thickness threshold, operating the motor to drive the cutter elements in the shredding direction to shred the at least one article, wherein a violation of the predetermined maximum thickness threshold if detected prior to operating the motor prevents operation of the motor in the shredding direction; thereafter, during the operation of the motor, monitoring the at least one thickness detector; and performing a predetermined operation if the at least one thickness detector detects a violation of a flutter threshold, the flutter threshold being higher than the predetermined maximum thickness threshold.