US 11,684,928 B2
Automatic shredder
Er Ren Zhong, Shanghai (CN); Tao Kuei Chuang, Shanghai (CN); and Guanglong Chen, Shanghai (CN)
Assigned to Aurora Office Equipment Co., Ltd. Shanghai, Shanghai (CN)
Filed by Aurora Office Equipment Co., Ltd. Shanghai, Shanghai (CN)
Filed on Mar. 17, 2021, as Appl. No. 17/204,717.
Claims priority of application No. 202011128737.3 (CN), filed on Oct. 20, 2020.
Prior Publication US 2022/0118460 A1, Apr. 21, 2022
Int. Cl. B02C 18/00 (2006.01); B02C 18/22 (2006.01); B02C 18/14 (2006.01)
CPC B02C 18/0007 (2013.01) [B02C 18/2283 (2013.01); B02C 18/142 (2013.01); B02C 2018/003 (2013.01); B02C 2018/0038 (2013.01); B02C 2018/0046 (2013.01); B02C 2018/2208 (2013.01)] 29 Claims
OG exemplary drawing
 
1. An automatic shredder, comprising:
an upper shredder cover;
a lower shredder cover;
a first paper box;
a second paper box;
a shredder cover plate;
a paper pressing plate;
a paper pressing roller set;
a paper pick-up roller set;
a paper inlet;
a cutter shaft set;
a drive motor;
a shell, and
a waste paper barrel, wherein:
the upper shredder cover is fixedly connected to the lower shredder cover,
the first paper box is disposed at one end of an inner side of the lower shredder cover,
the second paper box is disposed at another end of the inner side of the lower shredder cover, and is communicated and combined with the first paper box to accommodate a stack of to-be-shredded paper,
the shredder cover plate is connected to one end of the upper shredder cover through a pivot and is used for opening or closing the shredder,
the paper pressing plate is fixedly connected to a lower end face of the shredder cover plate and at least comprises a horizontal pressing plate for pressing the stack of to-be-shredded paper placed on the first paper box when a user closes the shredder cover plate,
the paper pressing roller set is disposed on one side of the paper pressing plate and vertically corresponds to the paper pick-up roller set,
the paper inlet is formed in the first paper box,
the cutter shaft set is disposed inside the lower shredder cover, located under the paper inlet and used for shredding the stack of to-be-shredded paper,
the drive motor is disposed inside the lower shredder cover, electrically connected to the cutter shaft set and the paper pick-up roller set, and used for driving the cutter shaft set and the paper pick-up roller set to operate,
the paper pick-up roller set is disposed inside the lower shredder cover, is located on a side of the cutter shaft set away from the second paper box, and is driven by the drive motor to rotate to enable a bottom piece of paper in the stack of to-be-shredded paper on the paper support box to move towards the second paper box and then move reversely under a reactive force of a side wall of the second paper box to be bent and deformed at the paper inlet so as to downward enter the paper inlet,
the shell is disposed below the lower shredder cover and is fixedly connected to the lower shredder cover, and
the waste paper barrel is disposed inside the shell for collecting shredded paper.