Abrégé

Provided is a paper- feed roller including a rotatable roller shaft, a rotatable roller member coupled to the roller shaft, a friction-feed member on an outer circumference of the roller member, and a feed protrusion coupled to the roller member, the feed protrusion protruding a predetermined amount from the friction-feed member.

Classes IPC  ?

• B02C 4/02 - Broyage ou désagrégation par broyeurs cylindriques par plusieurs meules
• B02C 18/06 - Désagrégation par couteaux ou autres organes coupants ou déchirants qui transforment le matériau en fragments; Hachoirs ou appareils similaires utilisant des vis ou analogue à couteaux rotatifs
• B02C 23/02 - Dispositifs d'alimentation

Abrégé

Disclosed is an automatic paper supply apparatus for a paper shredder, which can shred stapled paper sheets regardless of the volume or thickness of the paper sheets to be shredded. The automatic paper supply apparatus includes a paper loading stand for loading paper sheets to be shredded, the paper sheets being loaded while facing the shredding part; a supporting jaw installed at a front end of the paper loading stand so as to keep and support the paper sheets to be shredded; a lifting board included in the paper loading stand in such a manner that the lifting board can be rotated toward an upper direction; a feed sensor which is positioned at a lower part of the lifting board so as to sense if paper sheets to be shredded are supplied; a feed roller positioned at an upper part of the lifting board, the feed roller being driven when the feed sensor senses paper sheets so as to carry the paper sheets to be shredded to the shredding part; a pressing spring which elastically supports the lifting board and allows the paper sheets to be shredded, which has been put on the paper loading stand, to face the feed roller of an upper part of the paper shredder; and a catching board which is positioned above an upper part of the paper loading stand while being spaced from the paper loading stand, and allows a sheet of paper at an upper layer of stapled paper sheets to be released from the stapled part of the paper sheets. The present invention can shred stapled paper sheets without need to previously remove the staple thereof, increases the user's safety, and prevents damage to the apparatus.

Classes IPC  ?

• B02C 23/02 - Dispositifs d'alimentation
• B02C 23/00 - Procédés auxiliaires, dispositifs auxiliaires ou accessoires spécialement adaptés au broyage ou à la désagrégation non prévus dans les groupes ou non adaptés spécialement aux appareillages couverts par un seul des groupes