Back to results
US 6,178,863 B2Granted
Paper transfer assembly, and image reading and/or recording apparatus incorporating the same
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsAkira Kobayashi, Shigeyuki Hayashi
Life of this patent
Estimating the term…
Abstract
A paper transfer assembly is provided which includes a p reversibly rotatable drive motor, a paper transfer roller for transferring a paper, a first transmission mechanism connected to the paper transfer roller, and a second transmission mechanism separate from the first transmission mechanism. The second transmission mechanism may be used to drive a cutter device for automatically cutting the paper. Alternatively, the second transmission mechanism may be utilized for reversely moving the paper by providing a reversal mechanism for connecting the first transmission mechanism and the second transmission mechanism.
Claims15
A paper transfer assembly, comprising:
- a drive motor which is reversibly rotatable;
- a paper transfer roller for transferring a paper;
- a first transmission mechanism connected to the paper transfer roller;
- a second transmission mechanism separate from the first transmission mechanism for driving at least the paper transfer roller;
- a reversal mechanism for connecting the first transmission mechanism and the second transmission mechanism;
- and
- a changeover mechanism for releasably connecting the drive motor to the first transmission mechanism to rotate the paper transfer roller in a forward direction when the motor is rotated in a first direction, and for releasably connecting the drive motor to the second transmission mechanism to rotate the paper transfer roller in a reverse direction via the reversal mechanism and the first transmission mechanism when the motor is rotated in a second direction opposite to said first direction, wherein each of the first and second transmission mechanisms comprises a plurality of gears, the reversal mechanism comprising at least one reversal gear in mesh with a selected gear of the first transmission mechanism and a selected gear of the second transmission mechanism and the changeover mechanism comprises a planetary gear mechanism which includes a sun gear operatively connected to the drive motor, a first planetary gear held in mesh with the sun gear for revolution therearound while making self-rotation, and a second planetary gear held in mesh with the sun gear for revolution therearound while making self-rotation, the first planetary gear coming into mesh with a predetermined gear of the first transmission mechanism when the motor is rotated in said first direction, the second planetary gear coming into mesh with a predetermined gear of the second transmission mechanism when the motor is rotated in said second direction.
4 more elements
A paper transfer assembly, comprising:
- a drive motor which is reversibly rotatable;
- a paper transfer roller for transferring a paper;
- a first transmission mechanism connected to the paper transfer roller;
- a second transmission mechanism separate from the first transmission mechanism for driving at least the paper transfer roller;
- a reversal mechanism for connecting the first transmission mechanism and the second transmission mechanism;
- a changeover mechanism for releasably connecting the drive motor to the first transmission mechanism to rotate the paper transfer roller in a forward direction when the motor is rotated in a first direction, and for releasably connecting the drive motor to the second transmission mechanism to rotate the paper transfer roller in a reverse direction via the reversal mechanism and the first transmission mechanism when the motor is rotated in a second direction opposite to said first direction,
- a second paper transfer roller for transferring a different paper;
- and
- a third transmission mechanism connected to the second paper transfer roller, wherein the changeover mechanism selecting a first operation mode in which the drive motor is connected only to the third transmission mechanism, a second operation mode in which the drive motor is connected only to the first transmission mechanism, a third operation mode in which the drive motor is connected to both of the first and third transmission mechanisms, and a fourth operation mode in which the drive motor is connected only to the second transmission mechanism.
6 more elements
A paper transfer assembly, comprising:
- a drive motor which is reversibly rotatable;
- a first paper transfer roller for transferring a first paper;
- a first transmission mechanism connected to the first paper transfer roller;
- a second transmission mechanism separate from the first transmission mechanism;
- a second paper transfer roller for transferring a second paper;
- a third transmission mechanism connected to the second paper transfer roller and provided separately from the first and second transmission mechanisms;
- and
- a changeover mechanism for selectively connecting the drive motor to the first to third transmission mechanisms, wherein the changeover mechanism selects a first operation mode in which the drive motor is connected only to the third transmission mechanism, a second operation mode in which the drive motor is connected only to the first transmission mechanism, a third operation mode in which the drive motor is connected to both of the first and third transmission mechanisms, and a fourth operation mode in which the drive motor is connected only to the second transmission mechanism.
5 more elements
A paper transfer assembly, comprising:
- a drive motor which is reversibly rotatable;
- a paper transfer roller for transferring a paper;
- a cutter device for cutting the paper;
- a first transmission mechanism connected to the paper transfer roller;
- a second transmission mechanism separate from the first transmission mechanism for driving at least the cutter device;
- and
- a changeover mechanism for releasably connecting the drive motor to the first transmission mechanism to rotate the paper transfer roller in a forward direction when the motor is rotated in a first direction, and for releasably connecting the drive motor to the second transmission mechanism to drive the cutting device when the motor is rotated in a second direction opposite to said first direction.
4 more elements
Dependencies are inferred from the claim text.