Shredder jam clear apparatus

• US 10,639,642 B2
• Filed: 10/23/2017
• Issued: 05/05/2020
• Est. Priority Date: 03/19/2015
• Status: Active Grant

• Current Assignee: Aurora Office Equipment Co., Ltd, Shanghai
• Original Assignee: Aurora Office Equipment Co., Ltd, Shanghai
• Inventors: Tsai, Chung Shih, Tso, Yung Kang, Liu, Xiuming
• Primary Examiner(s): Francis, Faye
• Application Number:
  US15/791,106
• Publication Number:
  US 20180043367A1
• Time in Patent Office: Days
• CPC Class Codes: B02C 18/0007 specially adapted for disintegrating documents
• CPC Class Codes: B02C 18/2291 Feed chute arrangements
• CPC Class Codes: B02C 2018/0023 Switching devices
• CPC Class Codes: B02C 2018/0046 Shape or construction of frames, housings or casings
• CPC Class Codes: B02C 2018/164 Prevention of jamming and/or overload
• CPC Class Codes: B02C 25/00 Control arrangements specially adapted for crushing or disintegrating

Abstract

A paper shredder having shredder cover and a motor coupled to shredder blades includes a shredder throat in proximity to shredder blades. The shredder throat has a moveable blade, and a fixed blade. A shredder jam grip has a projection in communication with a power switch plunger. When the shredder is in the NORMAL position, a throat gap is in its normal position and the projection positions the plunger to power to the motor. When the shredder is in the JAM CLEAR position, the throat gap is in its wide position and the projection positions the plunger to remove power from the motor.

Claims

1. A paper shredder having an electric motor coupled to shredder blades, comprising:

a shredder throat having a fixed throat blade and a moveable throat blade disposed opposite the fixed throat blade,

wherein the moveable throat blade provides a wide gap shredder throat and a normal gap shredder throat with respect to the fixed throat blade;

a shredder jam grip having a projection;

a spreader bar coupled between the shredder jam grip and the moveable throat blade, wherein upon de-actuation the shredder jam grip causes the spreader bar to urge the moveable throat blade away from the fixed throat blade; and

a power control switch engageable with the projection and having an actuated mode and a de-actuated mode,

wherein the actuated mode corresponds to the normal gap shredder throat,

wherein the de-actuated mode corresponds to the wide gap shredder throat,

wherein in the actuated mode the projection positions the power control switch to provide electrical power to the electric motor, and

wherein in the de-actuated mode the projection positions the power control switch to block electrical power to the electric motor.

2. The paper shredder of claim 1, wherein the moveable throat blade is moved manually.

3. The paper shredder of claim 2, further comprising:

a jam clear mechanism shaft interposed between the shredder jam grip and the spreader bar.

5. The paper shredder of claim 1, wherein the moveable throat blade is moved manually.

4. A paper shredder having an electric motor coupled to shredder blades, comprising:

a shredder throat having a fixed throat blade and a moveable throat blade disposed opposite the fixed throat blade,

wherein the moveable throat blade provides a wide gap shredder throat and a normal gap shredder throat with respect to the fixed throat blade;

a projection affixed to a shredder jam grip; and

a power control switch engageable with the projection and having an actuated mode and a de-actuated mode, wherein the de-actuated mode corresponds to the wide gap shredder throat,

wherein the actuated mode corresponds to the normal gap shredder throat,

wherein in the actuated mode the projection positions the power control switch to provide electrical power to the electric motor, and

wherein in the de-actuated mode the projection positions the power control switch to block electrical power to the electric motor.

6. A paper shredder having an electric motor coupled to shredder blades, comprising:

a shredder throat having a fixed throat blade and a moveable throat blade disposed opposite the fixed throat blade,

wherein the moveable throat blade provides a wide gap shredder throat and a normal gap shredder throat with respect to the fixed throat blade;

a shredder jam grip having a projection;

a jam clear mechanism shaft coupled to the shredder jam grip;

a spreader bar coupled between the jam clear mechanism shaft and the moveable throat blade,

wherein upon de-actuation the shredder jam grip causes the spreader bar to urge the moveable throat blade away from the fixed throat blade; and

a power control switch engageable with the projection and having an actuated mode and a de-actuated mode,

wherein the actuated mode corresponds to the normal gap shredder throat, wherein the de-actuated mode corresponds to the wide gap shredder throat,

wherein in the actuated mode the projection positions the power control switch to provide electrical power to the electric motor, and

wherein in the de-actuated mode the projection positions the power control switch to block electrical power to the electric motor.