Sheet feeding or delivering – Feeding – Pack holders
Reexamination Certificate
1999-09-07
2001-03-06
Bollinger, David H. (Department: 3651)
Sheet feeding or delivering
Feeding
Pack holders
Reexamination Certificate
active
06196539
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates in general to a conveniently operated sheet-handling device.
2. Description of the Related Art
Referring to
FIG. 1
, a conventional sheet-handling device
10
such as a printer, a fax machine or a scanner has a tray
13
for supporting paper sheets
19
. On the tray
13
are provided two recesses
135
, while edge guides
15
are movably provided in the recesses
135
. The edge guides
15
are arranged on both sides of the paper sheets
19
to keep the paper sheets
19
in the correct position during the paper-feeding process. Thus, the paper sheets
19
do not get stuck in the sheet-handling device
10
. The sheet-handling device is adjusted for large paper sheets by moving the edge guides
15
in the directions E and F. Furthermore, an extensile plate
17
is mounted in the tray
13
. The extensile plate
17
can be stretched from the tray
13
in the direction D to support the paper sheets
19
, thereby preventing the paper sheets
19
from drooping.
It is noted that the movements of the two edge guides
15
are synchronous. However, the movement of the extensile plate
17
is independent from those of the edge guides
15
. In operation, the movement of the edge guides
15
to keep the paper sheets in the correct position and the movement of the extensile plate
17
to support the paper sheets are separate. Thus, the operation is not convenient.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a sheet-handling device, the operation of which is convenient.
Another object of the present invention is to provide a sheet-handling device, for which the movements of the edge guides and the extensile plate are synchronous.
The sheet-handling device of the present invention includes a tray, two edge guides, an extensile plate and a linkage mechanism. The edge guides and the extensile plate are movably connected to the tray. The linkage mechanism is connected to the edge guides and the extensile plate. When one of the edge guides and the extensile plate is moved, other components are forced to move via the linkage mechanism.
In sum, the present invention provides a linkage mechanism to synchronously move the edge guides and the extensile plate so that the device can be conveniently operated.
REFERENCES:
patent: 4786042 (1988-11-01), Stemmle
patent: 5172903 (1992-12-01), Haneda et al.
patent: 57-31642 (1982-08-01), None
patent: 3166129 (1991-07-01), None
patent: 3186529 (1991-08-01), None
Bollinger David H.
Ladas & Parry
Ultima Electronics Corp.
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