Feeding device

Details Feeding device Feeding device

2001-07-13

2003-11-18

Bollinger, David H. (Department: 3653)

Sheet feeding or delivering

Feeding

Separators

C271S147000, C271S160000

Reexamination Certificate

active

06648323

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a feeding device. More particularly, this invention relates to a feeding device with a linkage mechanism for supporting media and a recovery device for returning to its original position.
2. Description of Prior Art
FIG. 1A
is a plan view showing a feeding structure P
0
according to the prior art. The feeding structure P
0
comprises a holding pressure pallet
101
pivoted on a pivot shaft
102
, a pick feed roller
104
and a deskewer
105
. The pallet
101
is used to support a full load of media
103
such as sheet of paper. The roller
104
is provided with a scrubbing surface
104
A to transmit the media
103
to a printing device (not shown), and the deskewer
105
is used to deskew the media
103
located on the pallet
101
. Symbol “C
1
” represents the point of the roller
104
contacting the top sheet of media
103
, and Symbol “a
1
” represents the distance measured between the point C
1
and the deskewer
105
.
FIG. 1B
is a plan view showing another deployment of feeding structure P
0
according to
FIG. 1A
, in which a half load of media
103
remains. Symbol “C
2
” represents the point of the roller
104
contacting the top sheet of media
103
, and Symbol “a
2
” represents the distance measured between the point C
2
and the deskewer
105
.
FIG. 1C
is a plan view showing another deployment of the feeding structure P
0
according to
FIG. 1A
, in which only a few sheets of media
103
remain. Symbol “C
3
” represents the point of the roller
104
contacting the top one of the media
103
, and Symbol “a
3
” represents the distance measured between the point C
3
and the deskewer
105
.
In comparison with
FIG. 1A
,
1
B and
1
C, the distance (a
1
, a
2
, a
3
) between the contacting point (C
1
, C
2
, C
3
) of the feeding structure P
0
is gradually decreased while the media
103
located on the pallet
101
are gradually removed by the roller
104
. That is to say, the relationship among the distances a
1
, a
2
, a
3
is a
1
>a
2
>a
3
.
The media
103
cannot be smoothly removed by the scrubbing surface
104
A of the roller
104
when the distance between the contacting point and the deskewer
105
is reduced, which also causes other problems such as paper jamming, sticking, and distorting during the feeding process. Although the above problems can be solved by enlarging the size of the roller
104
or the distance between the pivot shaft
102
and the roller
104
, the total volume and production costs of the feeding structure P
0
are increased commensurately.
SUMMARY OF THE INVENTION
The primary object of this invention is to provide a feeding structure for transmitting media to a printing device. The feeding device has a substrate, a linkage mechanism, a deskewer, a recovery device and a scrubber. The linkage mechanism is disposed on the substrate and has a pallet used to support the media and move between an initial site and a predetermined site in parallel. The deskewer is used for deskewing the media located on the pallet and the recovery device is disposed on the linkage mechanism, and the scrubber for feeding the media located on the pallet toward the printing device.
Once the media is placed between the pallet and the scrubber or gradually delivered to the printing device by the scrubber, the pallet of the linkage mechanism can be downwardly or upwardly shifted in parallel by the compressed recovery device.


REFERENCES:
patent: 1130109 (1915-03-01), Rolier
patent: 3749281 (1973-07-01), Stovers et al.
patent: 4007925 (1977-02-01), DeRyke et al.
patent: 4216953 (1980-08-01), Varady et al.
patent: 4319741 (1982-03-01), Okamoto
patent: 5026041 (1991-06-01), Kitazume et al.
patent: 5634188 (1997-05-01), Johnston et al.
patent: 6199855 (2001-03-01), Choeng et al.
patent: 10 88 510 (1960-09-01), None
patent: 29 39 342 (1980-07-01), None
patent: 0156929 (1982-09-01), None
patent: 0002941 (1989-01-01), None
patent: 405319587 (1993-12-01), None

Affiliated with

Also associated with

Rating

Feeding device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Feeding device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Feeding device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3123393