Paper feeding device
AssigneeFoxlink Image Technology Co., Ltd.
InventorsWei Pin Hsieh, Chih Cheng Yu
Life of this patent
Estimating the term…
Abstract
A paper feeding device includes a pickup roller mechanism disposed at an entrance of a paper feeding path, and a separation mechanism disposed to a rear end of the pickup roller mechanism. The pickup roller mechanism includes a first pickup unit positioned at the entrance of the paper feeding path, a second pickup unit mounted to a rear end of the first pickup unit, and a third pickup unit disposed to a rear end of the second pickup unit. The second pickup unit includes a first driving gear. The third pickup unit includes a second driving gear, and a transmission belt looped around an outer periphery of the first driving gear and an outer periphery of the second driving gear.
Claims12
A paper feeding device adapted for preventing a paper jam or a paper damage, an inside of the paper feeding device having a paper feeding path, the paper feeding device comprising:
- a pickup roller mechanism disposed at an entrance of the paper feeding path, the pickup roller mechanism including
- a first pickup unit positioned at the entrance of the paper feeding path, the first pickup unit including a first pickup roller shaft arranged perpendicular to a paper feeding direction, and two first pickup rollers mounted around two opposite sides of the first pickup roller shaft,
- a second pickup unit mounted to a rear end of the first pickup unit, the second pickup unit including a second pickup roller shaft parallel to the first pickup roller shaft, two second pickup rollers mounted around two opposite sides of the second pickup roller shaft, and a first driving gear mounted at a middle of the second pickup roller shaft, and
- a third pickup unit disposed to a rear end of the second pickup unit, the third pickup unit including a third pickup roller shaft, two third pickup rollers mounted around two opposite sides of the third pickup roller shaft, a second driving gear mounted at a middle of the third pickup roller shaft, and a transmission belt looped around an outer periphery of the first driving gear and an outer periphery of the second driving gear;
- and
- a separation mechanism disposed to a rear end of the pickup roller mechanism, the separation mechanism being positioned at an upper portion of the paper feeding path, the third pickup unit being positioned under a bottom of the separation mechanism.
A paper feeding device adapted for preventing a paper jam or a paper damage, an inside of the paper feeding device having a paper feeding path, the paper feeding device comprising:
- a pickup roller mechanism disposed at an entrance of the paper feeding path, the pickup roller mechanism including
- a first pickup unit positioned at the entrance of the paper feeding path, the first pickup unit including a first pickup roller shaft arranged perpendicular to a paper feeding direction, and two first pickup rollers mounted around two opposite sides of the first pickup roller shaft,
- a second pickup unit mounted to a rear end of the first pickup unit, the second pickup unit including a second pickup roller shaft parallel to the first pickup roller shaft, and two second pickup rollers mounted around two opposite sides of the second pickup roller shaft, and
- a third pickup unit disposed to a rear end of the second pickup unit, the third pickup unit including a third pickup roller shaft, and two third pickup rollers mounted around two opposite sides of the third pickup roller shaft;
- a transmission module including a first driving gear mounted at a middle of the second pickup roller shaft, a second driving gear mounted at a middle of the third pickup roller shaft, and a transmission belt looped around an outer periphery of the first driving gear and an outer periphery of the second driving gear;
- and
- a separation mechanism disposed to a rear end of the pickup roller mechanism, the separation mechanism being positioned at an upper portion of the paper feeding path, the separation mechanism being disposed above the pickup roller mechanism.
A paper feeding device defining a paper feeding path along a paper feeding direction, the paper feeding device comprising:
- a separation mechanism positioned at an upper portion of the paper feeding path;
- and
- a pickup roller mechanism disposed at an entrance of the paper feeding path, the separation mechanism being disposed to a rear end of the pickup roller mechanism, the separation mechanism being disposed above the pickup roller mechanism, the pickup roller mechanism including
- a first pickup unit positioned at the entrance of the paper feeding path, the first pickup unit including a first pickup roller shaft arranged perpendicular to a paper feeding direction, and two first pickup rollers mounted around two opposite sides of the first pickup roller shaft,
- a second pickup unit mounted to a rear end of the first pickup unit, the second pickup unit including a second pickup roller shaft parallel to the first pickup roller shaft, two second pickup rollers mounted around two opposite sides of the second pickup roller shaft, and a first driving gear mounted at a middle of the second pickup roller shaft, and
- a third pickup unit disposed to a rear end of the second pickup unit, the third pickup unit being positioned under a bottom of the separation mechanism, the third pickup unit including a third pickup roller shaft, two third pickup rollers mounted around two opposite sides of the third pickup roller shaft, a second driving gear mounted at a middle of the third pickup roller shaft, and a transmission belt looped around an outer periphery of the first driving gear and an outer periphery of the second driving gear,
- wherein an outer diameter of the first driving gear is smaller than an outer diameter of the second driving gear, a top tooth of the second driving gear is lower than a top tooth of the first driving gear, so an upper surface of the transmission belt slantwise extends upward from an upper portion of the second driving gear to an upper portion of the first driving gear, a lower surface of the transmission belt slantwise extends upward from a lower portion of the second driving gear to a lower portion of the first driving gear.
Dependencies are inferred from the claim text.