U.S. patent application number 13/859053 was filed with the patent office on 2014-01-02 for paper transmission apparatus.
This patent application is currently assigned to HON HAI PRECISION INDUSTRY CO., LTD.. The applicant listed for this patent is HON HAI PRECISION INDUSTRY CO., LTD.. Invention is credited to YI-LONG LEE, CHANG-HSIU WU.
Application Number | 20140001695 13/859053 |
Document ID | / |
Family ID | 49777285 |
Filed Date | 2014-01-02 |
United States Patent
Application |
20140001695 |
Kind Code |
A1 |
LEE; YI-LONG ; et
al. |
January 2, 2014 |
PAPER TRANSMISSION APPARATUS
Abstract
A paper transmission apparatus includes a paper-in mechanism
including a first roller, a paper-out mechanism including a second
roller, a gear assembly, and a swing member. The swing member is
connected to the first roller to the gear assembly. The first
roller is rotatable along a first direction to rotate the swing
member, and the swing member is capable of moving the gear assembly
to be meshed with the second roller, to accelerate a rotating speed
of the second roller being greater than a rotating speed of the
first roller. The first roller is rotatable along a second
direction opposite to the first direction to rotate the swing arm,
and the swing arm is capable of moving the gear assembly to be
meshed with the second roller, to decelerate the rotating speed of
the second roller being smaller than the rotating speed of the firs
roller.
Inventors: |
LEE; YI-LONG; (New Taipei,
TW) ; WU; CHANG-HSIU; (New Taipei, TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
HON HAI PRECISION INDUSTRY CO., LTD. |
New Taipei |
|
TW |
|
|
Assignee: |
HON HAI PRECISION INDUSTRY CO.,
LTD.
New Taipei
TW
|
Family ID: |
49777285 |
Appl. No.: |
13/859053 |
Filed: |
April 9, 2013 |
Current U.S.
Class: |
271/3.14 |
Current CPC
Class: |
B65H 2403/73 20130101;
B41J 13/0009 20130101; B65H 3/0669 20130101; B65H 29/20 20130101;
B65H 2801/15 20130101; B65H 2403/942 20130101; B65H 2404/154
20130101; B65H 5/06 20130101; B65H 2403/422 20130101 |
Class at
Publication: |
271/3.14 |
International
Class: |
B65H 5/06 20060101
B65H005/06; B65H 29/20 20060101 B65H029/20 |
Foreign Application Data
Date |
Code |
Application Number |
Jun 28, 2012 |
TW |
101123237 |
Claims
1. A paper transmission apparatus comprising: a paper-in mechanism
comprising a first roller; a paper-out mechanism comprising a
second roller; a gear assembly meshed with the first roller; and a
swing member connecting the first roller to the gear assembly,
wherein the first roller is rotatable along a first direction to
rotate the swing member, the swing member is configured to move the
gear assembly to be meshed with the second roller, to accelerate a
rotating speed of the second roller to be greater than a rotating
speed of the first roller; the first roller is rotatable along a
second direction opposite to the first direction to rotate the
swing member, the swing member is configured to move the gear
assembly to be meshed with the second roller, and to decelerate the
rotating speed of the second roller to be smaller than the rotating
speed of the first roller.
2. The paper transmission device of claim 1, wherein the paper-in
mechanism comprises a paper-in shaft, the first roller is secured
to the paper-in shaft rotated with the first roller, and the swing
member is pivotally secured to the paper-in shaft.
3. The paper transmission device of claim 2, wherein the swing
member comprises a swing arm, the swing arm defines a rotating
hole, and the paper-in shaft and an inner wall of the rotating hole
are frictionally contacted.
4. The paper transmission device of claim 3, wherein the swing
member further comprises a firs pivot post, the gear assembly
comprises a first gear and a connecting arm, and the first pivot
post extends through the first gear to be engaged in the connecting
arm.
5. The paper transmission device of claim 4, wherein the first gear
is meshed with the first roller and the second roller, and capable
of accelerating the rotating speed of the second roller when the
first roller is rotated along the first direction.
6. The paper transmission device of claim 4, wherein the swing
member further comprises a second pivot post, the gear assembly
further comprises a second gear, and the second pivot post extends
through the second gear to be engaged in the connecting arm.
7. The paper transmission device of claim 6, wherein the second
gear is meshed with the first roller and the second roller, and
capable of decelerating the rotating speed of the second roller
when the first roller is rotated along the second direction.
8. The paper transmission device of claim 6, wherein the first
pivot post and the second pivot post are located on the swing arm,
and the first pivot post, the second pivot post, and the rotating
hole are arranged at three corners of an equilateral triangle
area.
9. The paper transmission device of claim 6, wherein the paper-out
mechanism comprises a paper-out shaft, and the second roller is
secured to the paper-out shaft rotated with the second gear.
10. A printer device comprising: a base; a paper-in mechanism
attached to the base and comprising a first roller; a paper-out
mechanism attached to the base and comprising a second roller; a
gear assembly comprising a first gear and a second gear; and a
swing member connecting the first roller to the gear assembly,
wherein the first roller is rotatable along a first direction to
rotate the swing member, the swing member is configured to move the
gear assembly to mesh the first gear with the second roller, to
accelerate a rotating speed of the second roller to be greater than
a rotating speed of the first roller; the first roller is rotatable
along a second direction opposite to the first direction to rotate
the swing member, the swing member is configured to move the gear
assembly to mesh the second gear with the second roller, to
decelerate the rotating speed of the second roller to be smaller
than the rotating speed of the first roller.
11. The printer device of claim 10, wherein the paper-in mechanism
comprises a paper-in shaft, the first gear is secured to the
paper-in shaft rotated with the first gear, and the swing member is
pivotally secured to the paper-in shaft.
12. The printer device of claim 11, wherein the swing member
comprises a swing arm, the swing arm defines a rotating hole, and
the paper-in shaft and an inner wall of the rotating hole are
frictionally contacted.
13. The printer device of claim 12, wherein the swing member
further comprises a first pivot post, the gear assembly further
comprises a connecting arm, and the first pivot post extends
through the first gear to be engaged in the connecting arm.
14. The printer device of claim 13, wherein the swing member
further comprises a second pivot post, and the second pivot post
extends through the second gear to be engaged in the connecting
arm.
15. The printer device of claim 14, wherein the first pivot post
and the second pivot post are located on the swing arm, and the
first pivot post, the second pivot post, and the rotating hole are
arranged at three corners of an equilateral triangle area.
16. The printer device of claim 10, wherein the paper-out mechanism
comprises a paper-out shaft, and the second gear is secured to the
paper-out shaft rotated with the second gear.
17. The printer device of claim 11, wherein the base defines a
first receiving slot, and the paper-in shaft is received in the
first receiving slot.
18. The printer device of claim 16, wherein the base defines a
second receiving slot parallel to the first receiving slot, and the
paper-out shaft is received in the second receiving slot.
Description
BACKGROUND
[0001] 1. Technical Field
[0002] The present disclosure relates to electronic devices, and
more particularly to a paper transmission apparatus.
[0003] 2. Description of Related Art
[0004] In general, an image forming device, such as a printer, a
scanner, or a copier, may include a paper-in mechanism and a
paper-out mechanism. The paper-in mechanism may include a paper-in
shaft and a first roller secured to the paper-in shaft. The
paper-out mechanism may include a paper-out shaft. A motor drives
the first roller to rotate. The rotation of the first roller drives
the paper-in shaft to rotate and transport a sheet of paper to the
paper-out shaft. The sheet of paper may be arched between the
paper-in shaft and the paper-out shaft because the paper-in shaft
and the paper-out shaft have the same rotating speed. The arched
sheet may touch a printer nozzle and cause damages the printer
nozzle. Therefore, there is room in the art for improvement.
BRIEF DESCRIPTION OF THE DRAWINGS
[0005] Many aspects of the embodiments can be better understood
with references to the following drawings. The components in the
drawings are not necessarily drawn to scale, the emphasis instead
being placed upon clearly illustrating the principles of the
embodiments. Moreover, in the drawings, like reference numerals
designate corresponding parts throughout the several views.
[0006] FIG. 1 is an exploded, isometric view of a paper
transmission apparatus in accordance with an embodiment.
[0007] FIG. 2 is similar to FIG. 1, but viewed from a different
aspect.
[0008] FIG. 3 is an assembled view of the paper transmission
apparatus of FIG. 1.
[0009] FIG. 4 is a schematic view of a first roller, a second
roller, a first gear and a second gear of FIG. 1, and the first
gear is meshed with the second roller.
[0010] FIG. 5 is a similar to FIG. 1, but the second gear is meshed
with the second roller.
DETAILED DESCRIPTION
[0011] The disclosure is illustrated by way of example and not by
way of limitation in the figures of the accompanying drawings in
which like references indicate similar elements. It should be noted
that references to "an" or "one" embodiment in this disclosure are
not necessarily to the same embodiment, and such references mean at
least one.
[0012] FIGS. 1 and 2 illustrate a paper transmission apparatus in
accordance with an embodiment. The paper transmission apparatus is
applied to a printer device and includes a paper-in mechanism 20, a
paper-out mechanism 30, a gear assembly 40, and a swing member 50.
The printer device further includes a base 10, and the paper
transmission apparatus is installed on the base 10.
[0013] The base 10 defines a first receiving slot 11 and a second
receiving slot 13. The first receiving slot 11 and the second
receiving slot 13 are located in parallel and capable of receiving
the paper-in mechanism 20 and the paper-out mechanism 30,
respectively.
[0014] The paper-in mechanism 20 is rotatably attached to the base
10 and includes a paper-in shaft 21, a first roller 23, and a motor
(not shown). The paper-in shaft 21 is received in the first
receiving slot 11 of the base 10. The first roller 23 is secured to
one end of the paper-in shaft 21 and meshed with the gear assembly
40. The motor is meshed with the first roller 23 and configured to
drive the first roller 23 to rotate.
[0015] The paper-out mechanism 30 includes a paper-out shaft 31 and
a second roller 33. The paper-out shaft 31 is received in the
second slot 13, and a part of the paper-out shaft 31 extends out of
the base 10. The second roller 33 is secured to one end of the
paper-out shaft 31 and adjacent to the first roller 33.
[0016] The gear assembly 40 includes a first gear 41, and a second
gear 43, and a connecting arm 45 connecting the first gear 41 to
the second gear 43. The number of teeth of the first gear 41 is
greater than the number of teeth of the second gear 43. The first
gear 41 is capable of accelerating the speed of the second roller
33. The second gear 41 is capable of decelerating the speed of the
second roller 33. The connecting arm 45 defines a first connecting
hole 451 and a second connecting hole 453 corresponding to the
first gear 41 and the second gear 43, respectively.
[0017] The swing member 50, configured to connect the gear assembly
40 and the paper-in mechanism 20, includes a swing arm 51, a first
pivot post 53 and a second pivot post 55 located on the swing arm
51. The swing arm 51 defines a rotating hole 511 for receiving a
paper-in shaft 23. In one embodiment, the first pivot post 53, the
second pivot post 55, and the rotating hole 511 are arranged at
three corners of a equilateral triangle area. The first pivot post
53 extends through the first gear 41 to be inserted into the first
connecting hole 451. The second pivot post 55 extends through the
second gear 43 to be inserted into the second connecting hole
453.
[0018] FIG. 3 shows that in assembly, the paper-in shaft 21 of the
paper-in mechanism 20 is received in the first receiving slot 11,
and the first roller 23 is located on one side of the base 10. The
paper-out shaft 31 of the paper-out mechanism 30 is received in the
second receiving slot 13, and the second roller 33 is adjacent to
the first roller 23.
[0019] The swing member 50 is assembled with the gear assembly 40,
and is secured to an outside of the paper-in shaft 21 together with
the gear assembly 40 via the rotating hole 511 receiving the
paper-in shaft 21. The first gear 41 and the second gear 43 are
positioned between the first roller 23 and the second roller 33 and
meshed with the first roller 23, respectively. The first gear 41 is
located above the second gear 43.
[0020] Referring to FIGS. 4 and 5, in use, the motor drives the
first roller 23 to rotate along a first direction, and the paper-in
shaft 21 is driven to rotate by the first roller 23 to move a paper
(not shown) towards the paper-out shaft 31. The swing member 50 is
driven to move downwards by the paper-in shaft 21, to move the gear
assembly 40 downwards. The first gear 41 of the gear assembly 40 is
meshed with the second roller 33 and accelerates a rotating speed
of the second roller 33. The rotating speed of the second roller 33
is greater than a rotating speed of the first roller 23 for
preventing the paper from arching when the paper is transported
from the paper-in shaft 21 to the paper-out shaft 31, for
preventing a nozzle (not shown) from being damaged.
[0021] The motor drives the first roller 23 to rotate along a
second direction opposite to the first direction, and the paper-in
shaft 21 is rotated driven by the first roller 23. The swing member
50 is moved upwards via the friction between the paper-in shaft 31
and an inner wall of the rotating hole 511, to move the gear
assembly 40 upwards. The second gear 43 of the gear assembly 40 is
meshed with the second roller 33 and decelerates the rotating speed
of the second roller 33. The rotating speed of the second roller 33
is slower than the rotating speed of the first roller 23 for
preventing the paper from arching when the paper is transported
from the paper-out shaft 31 to the paper-in shaft 21, for
preventing the nozzle from being damaged.
[0022] It is to be understood, however, that even though numerous
characteristics and advantages have been set forth in the foregoing
description of embodiments, together with details of the structures
and functions of the embodiments, the disclosure is illustrative
only and changes may be made in detail, especially in the matters
of shape, size, and arrangement of parts within the principles of
the disclosure to the full extent indicated by the broad general
meaning of the terms in which the appended claims are
expressed.
* * * * *