AUTOMATIC SHREDDER WITHOUT CHOOSING THE NUMBER OF PAPER TO BE SHREDDED

• US 20100032507A1
• Filed: 07/27/2009
• Published: 02/11/2010
• Est. Priority Date: 08/06/2008
• Status: Active Grant

• Current Assignee: Aurora Office Equipment Co., Ltd, Shanghai
• Original Assignee: Aurora Office Equipment Co., Ltd, Shanghai
• Inventors: Chen, Xinxiong
• Granted Patent: US 8,146,845 B2
• Time in Patent Office: Days
• US Class Current: 241/34
• CPC Class Codes: B02C 18/0007 specially adapted for disintegrating documents
• CPC Class Codes: B02C 18/2291 Feed chute arrangements
• CPC Class Codes: B02C 2018/0015 for disintegrating CDs, DVDs and/or credit cards
• CPC Class Codes: B02C 2018/003 Removing clips, pins or staples before disintegrating

Abstract

The present invention relates to an automatic shredder without choosing the number of paper to be shredded which comprises a shredder core and an automatic paper feeding device, the automatic paper feeding device comprises a driving mechanism, a paper support box, a pick-up mechanism and a paper press box, the driving mechanism is fixed on the shredder core and connected with the pick-up mechanism for driving the pick-up mechanism, the paper support box comprises a first zone and a second zone, the pick-up mechanism is positioned between the first zone and the second zone and fixed to the paper support box, and its paper feeding direction is towards the second zone, one end of the paper press box is pivoted with the paper support box, the other end of the paper press box is connected detachable with the paper support box, the paper support box is fixed on the shredder core, and the second zone has a paper inlet positioned above the blade assembly of the shredder core, a magnet is positioned in the first zone, the automatic shredder further comprises an elastic paper press and retaining device mounted inside the paper press box and extending to the first zone, the magnet corresponds to the elastic paper press and retaining device, so the present invention can deal with a very large amount of paper to be shredded at one time, has a simple and convenient operation, is designed dexterously, and has a concise structure and a economical cost.

Claims

1. An automatic shredder without choosing the number of paper to be shredded, comprising a shredder core and an automatic paper feeding device fixed on the shredder core, wherein the automatic paper feeding device comprises a driving mechanism, a paper support box, a pick-up mechanism and a paper press box covered on the paper support box, the driving mechanism is fixed on the shredder core and connected with the pick-up mechanism for driving the pick-up mechanism, the pick-up mechanism is positioned between the paper press box and the paper support box, and fixed to the paper support box to divide the paper support box to be a first zone and a second zone, and its paper feeding direction is towards the second zone, one end of the paper press box is pivoted with the paper support box, the other end of the paper press box is connected detachable with the paper support box, the paper support box is fixed on the shredder core, and the second zone has a paper inlet positioned above the blade assembly of the shredder core.

2. The automatic shredder without choosing the number of paper to be shredded according to claim 1, wherein the pick-up mechanism comprises a paper press axle, an elastic component and a pick-up axle, the paper press axle is mounted in the paper press box, the elastic component is positioned in the paper press box and props against the paper press box and the paper press axle respectively, or two ends of the elastic component are connected with the paper press box and the shredder core respectively, for pressing the paper press axle towards the pick-up axle which is mounted in the paper support box, the paper press axle is adjacent to the pick-up axle, and the driving mechanism is connected with the pick-up axle for driving the pick-up axle.

3. The automatic shredder without choosing the number of paper to be shredded according to claim 2, wherein the driving mechanism comprises a pick-up gear, a transmission gear and a blade shaft gear, the pick-up gear is mounted on the pick-up axle, the blade shaft gear is fixed on the blade shaft of the blade assembly, and the transmission gear is pivoted with the shredder core and engages with the blade shaft gear and the pick-up gear respectively.

4. The automatic shredder without choosing the number of paper to be shredded according to claim 2, wherein the pick-up axle has a texture on its surface;

or around the pick-up axle is mounted a pick-up roller, and around the paper press axle is mounted a paper press roller next to the pick-up roller.

5. The automatic shredder without choosing the number of paper to be shredded according to claim 2, wherein in the middle part of the paper support box there is a groove in which the pick-up axle is located, the top of the cross section of the pick-up axle is as high as the first zone, and/or the elastic component is an iron spring, a rubber spring or a linkage structure.

6. The automatic shredder without choosing the number of paper to be shredded according to claim 1, wherein the automatic paper feeding device further comprises a magnet which is positioned in the outer side of the first zone of the paper support board.

7. The automatic shredder without choosing the number of paper to be shredded according to claim 1, wherein the paper press box further has a CD inlet and a manual paper inlet, the CD inlet is above the paper inlet, the second zone has a manual paper entrance above which the manual paper inlet is located and which is above a cutter assembly of the shredder core.

8. The automatic shredder without choosing the number of paper to be shredded according to claim 1, wherein the automatic shredder further comprises an elastic paper press and retaining device mounted inside the paper press box and extending to the first zone for pressing tightly and retaining the paper in the automatic paper feeding device during the process of shredding paper.

9. The automatic shredder without choosing the number of paper to be shredded according to claim 8, wherein the elastic paper press and retaining device is an elastic paper press and retaining board or an elastic paper press and retaining spring flake.

10. The automatic shredder without choosing the number of paper to be shredded according to claim 1, wherein the automatic paper feeding device is arranged aslant relative to the blade shaft of the blade assembly.

11. An automatic shredder without choosing the number of paper to be shredded, comprising a shredder core and an automatic paper feeding device fixed on the shredder core, wherein

the automatic paper feeding device comprises a driving mechanism, a paper support box, a pick-up mechanism and a paper press box covered on the paper support box, the driving mechanism is fixed on the shredder core and connected with the pick-up mechanism for driving the pick-up mechanism, the pick-up mechanism is positioned between the paper press box and the paper support box, and fixed to the paper support box to divide the paper support box to be a first zone and a second zone, and its paper feeding direction is towards the second zone, one end of the paper press box is pivoted with the paper support box, the other end of the paper press box is connected detachable with the paper support box, the paper support box is fixed on the shredder core, and the second zone has a paper inlet positioned above the blade assembly of the shredder core;

the automatic shredder further comprises an elastic paper press and retaining device mounted inside the paper press box and extending to the first zone for pressing tightly and retaining the paper in the automatic paper feeding device during the process of shredding paper; and

the automatic paper feeding device further comprises a magnet which is positioned in the outer side of the first zone of the paper support board and corresponding to the elastic paper press and retaining device.

12. The automatic shredder without choosing the number of paper to be shredded according to claim 11, wherein the elastic paper press and retaining device is an elastic paper press and retaining board or an elastic paper press and retaining spring flake.

13. The automatic shredder without choosing the number of paper to be shredded according to claim 11, wherein the pick-up mechanism comprises a paper press axle, an elastic component and a pick-up axle, the paper press axle is mounted in the paper press box, the elastic component is positioned in the paper press box and props against the paper press box and the paper press axle respectively, or two ends of the elastic component are connected with the paper press box and the shredder core respectively, for pressing the paper press axle towards the pick-up axle which is mounted in the paper support box, the paper press axle is adjacent to the pick-up axle, and the driving mechanism is connected with the pick-up axle for driving the pick-up axle.

14. The automatic shredder without choosing the number of paper to be shredded according to claim 13, wherein the driving mechanism comprises a pick-up gear, a transmission gear and a blade shaft gear, the pick-up gear is mounted on the pick-up axle, the blade shaft gear is fixed on the blade shaft of the blade assembly, the transmission gear is pivoted with the shredder core and engages with the blade shaft gear and the pick-up gear respectively.

15. The automatic shredder without choosing the number of paper to be shredded according to claim 13, wherein the pick-up axle has a texture on its surface;

or around the pick-up axle is mounted a pick-up roller, around the paper press axle is mounted a paper press roller next to the pick-up roller.

16. The automatic shredder without choosing the number of paper to be shredded according to claim 13, wherein in the middle part of the paper support box there is a groove in which the pick-up axle is located, the top of the cross section of the pick-up axle is as high as the first zone, and/or the elastic component is an iron spring, a rubber spring or a linkage structure.

17. The automatic shredder without choosing the number of paper to be shredded according to claim 11, wherein the paper press box further has a CD inlet and a manual paper inlet, the CD inlet is above the paper inlet, the second zone has a manual paper entrance above which the manual paper inlet is located and which is above a cutter assembly of the shredder core.

18. The automatic shredder without choosing the number of paper to be shredded according to claim 11, wherein the automatic paper feeding device is arranged aslant relative to the blade shaft of the blade assembly.