Power switching device and image processing device with power switching device

Patent metadata

Field	Value
Publication number	US-11516364-B2
Application number	US-202017000623-A
Country	US
Kind code	B2
Filing date	Aug 24, 2020
Priority date	Jul 31, 2020
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

A power switching device for switching power between translational motion and rotational motion includes an active gear, a transmission mechanism, a translation mechanism, a functional gear, and a reset mechanism. The active gear can rotate in a first direction or a second direction opposite the first direction. The translation mechanism includes a runner and a pushing member. The active gear can switch between a first position and a second position. In the first position, the active gear meshes with the runner and rotates in the first direction or the second direction to drive the runner to rotate. In the second position, the active gear meshes with the transmission gear and rotates in the second direction to drive the functional gear to rotate.

First claim

What is claimed is:

1. An image processing device comprising an image reading mechanism and a paper feeding mechanism, and further comprising:
an active mechanism comprising an active gear and a driver, the driver connected to the active gear and used to drive the active gear to rotate toward a first direction or a second direction opposite to the first direction;
a transmission mechanism comprising a transmission gear coaxial with the active gear;
a translation mechanism comprising:
a runner coaxial with the active gear and located on a side of the active gear away from the transmission gear;
a pushing member for pushing the active gear in the direction of the transmission gear to switch power;

a rotating mechanism comprising a functional gear connected to the transmission mechanism; and
a reset mechanism for pushing the active gear in the direction of the runner to switch power; wherein:
the active gear can switch between a first position and a second position;
when the active gear is in the first position, the active gear meshes with the runner, and the active gear rotates toward the first direction or the second direction to drive the runner to rotate, so as to drive the image reading mechanism to operate;
when the active gear is in the second position, the active gear meshes with the transmission gear, and the active gear rotates toward the second direction to drive the functional gear to rotate, so as to drive the paper feeding mechanism to operate.

2. The image processing device of claim 1 , wherein the translation mechanism further comprises:
an auxiliary wheel;
a transmission belt with one end sleeved on the runner and the other end sleeved on the auxiliary wheel;
a translation member installed on the transmission belt, the transmission belt used to roll to drive the translation member to move, and the pushing member is installed on the translation member.

3. The image processing device of claim 1 , wherein:
the runner is provided with a first toothing portion on a side facing the active gear, and the active gear is provided with a second toothing portion on a side facing the runner;
the second toothing portion is used to engage the first toothing portion to drive the runner to rotate;
the transmission gear is provided with a third toothing portion on a side facing the active gear, and the active gear is provided with a fourth toothing portion on a side facing the transmission gear;
the fourth toothing portion is used to mesh with the third toothing portion to drive the transmission gear to rotate.

4. The image processing device of claim 1 , wherein the power switching device further comprises a switching mechanism, the switching mechanism comprising:
a fixed shaft, the active gear, the runner, and the transmission gear are rotationally sleeved on the fixed shaft, and the active gear can slide between the runner and the transmission gear;
a pressing member sleeved on the fixed shaft, the pushing member pushing the pressing member to push the active gear;
a movable shaft slidably inserted into the fixed shaft along the axis, with one end connected to the reset mechanism, and the other end connected to the pressing member, the reset mechanism pushing the movable shaft to reset the pressing member.

5. The image processing device of claim 4 , wherein:
the pressing member is provided with an extension piece located between the pushing member and the active gear;
the pushing member is provided with a first curved surface adjacent to the extension piece;
when the pushing member approaches the pressing member, the pushing member causes the extension piece to slide relative to the first curved surface to press the extension piece, and then push the active gear toward the transmission gear.

6. The image processing device of claim 5 , wherein:
the switching mechanism further comprises a connecting member fixedly installed on the end of the movable shaft close to the pressing member;
the end of the pressing member away from the extension piece passes through the connecting member and is provided with a limiting portion;
the limiting portion is used to hold the connecting member;
when the pushing member pushes the extension piece, the limiting portion pushes the connecting member to drive the movable shaft to move;
when the reset mechanism drives the movable shaft to reset, the connecting member pushes against the limiting portion to drive the pressing member to reset.

7. The image processing device of claim 6 , wherein:
the reset mechanism comprises a resilient member provided between the transmission gear and the active gear;
when the pressing member is separated from the active gear, the resilient member is used to push the active gear toward the runner, so that the active gear is separated from the transmission gear and meshed with the runner to switch power.

8. The image processing device of claim 7 , wherein:
the reset mechanism further includes a swing member, a reset gear, a rack, and a stopping member;
one end of the swing member is connected to the functional gear, and the other end is connected to the reset gear;
the reset gear is meshed with the functional gear;
the rack can slide and one end of the rack is provided with a second curved surface;
when the functional gear rotates toward the first direction, the functional gear drives the swing member to move away from the rack until contacting the stopping member, the stopping member limits rotation of the swing member, and the reset gear rotates idly;
when the functional gear rotates toward the second direction, the functional gear drives the swing member toward the rack until the reset gear meshes with the rack, the reset gear rotates to drive the rack to slide, the second curved surface is used to push the movable shaft to cause the movable shaft to drive the pressing member to push the pushing member away from the active gear, and the resilient member resets the active gear.

9. The image processing device of claim 1 , wherein:
the active mechanism and the transmission mechanism are both installed on a frame; and
a position of the frame is fixed.

10. The image processing device of claim 9 , wherein:
the translation member is slidably installed on a first sliding rail of the frame; and
the first sliding rail is used to guide the translation member.

Assignees

• Hongfujin Prec Ind Wuhan

Inventors

• Chung Ming-Hung
• Cheng Hsiu-Hao

Classifications

• H04N1/00599

  Using specific components (details of components related to handling thin or filamentary material B65H) · CPC title

• H04N1/00557 Primary

  Connection or assembly of components or elements (H04N1/00538 takes precedence) · CPC title

• F16H25/183

  conveying only reciprocating motion, e.g. wedges · CPC title

• F16H19/0645

  the flexible push or pull member having guiding means, i.e. the flexible member being supported at least partially by a guide to transmit the reciprocating movement  (the flexible member being a non-buckling chain F16H19/0636) · CPC title

• H04N1/00904 Primary

  Arrangements for supplying power to different circuits or for supplying power at different levels (H04N1/00896 takes precedence) · CPC title