Typewriting machines – Sheet or web – For feeding web record-medium
Reexamination Certificate
2003-05-22
2004-09-21
Hirshfeld, Andrew H. (Department: 2854)
Typewriting machines
Sheet or web
For feeding web record-medium
C101S093070, C083S352000, C083S471000
Reexamination Certificate
active
06793424
ABSTRACT:
CROSS REFERENCE TO RELATED APPLICATION
The present application is based on Japanese Priority Document JP2002-275881 filed on Sep. 20, 2002, the content of which is incorporated herein by reference.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a cutter device provided in a printer for printing images, such as, e.g., characters, figures, onto a continuous paper. Particularly, the invention is concerned with a cutter device for cutting continuous paper into an appropriate length.
2. Discussion of the Background
Heretofore, various cutter devices have been known for cutting continuous paper into an appropriate length. Printers and facsimile devices using such cutter devices are in many cases provided with a cutter section on a downstream side of a printing section in a paper conveying direction.
A conventional cutter device is shown in
FIG. 9. A
rotary type cutter device
100
is provided with a fixed blade
101
which is supported in a fixed state and a movable blade
103
which is rotatable about a support shaft
102
. Fixed blade
101
and movable blade
103
each have a plate-like shape and are arranged in a non-parallel state while allowing respective edges
101
a
and
103
a
to mesh partially with each other.
In the cutter device
100
, a motor (not shown) and support shaft
102
are connected with each other through a gear train (not shown) or the like and a driving force of the motor is transmitted to the support shaft
102
through a gear train or the like, whereby movable blade
101
is rotated. Such drive components including the motor and the gear train are mounted to a frame
104
which supports fixed blade
101
and movable blade
103
. Movable blade
103
is rotated by the motor through the gear train, causing the meshing position of edges
101
a
and
103
a
to move in one direction, thereby cutting continuous paper which has been fed to between fixed blade
101
and movable blade
103
, like scissors.
However, in cutter device
100
of such a construction, when movable blade
103
having expired its service life is to be replaced with a fresh one, it is required to disassemble the frame
104
and drive components, or else it will be impossible to detach the movable blade
103
. Thus, blade replacing work is troublesome.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to attach or detach a movable blade without requiring any complicated work.
The object of the present invention is achieved by a novel cutter according to the present invention.
The novel cutter device of the present invention is provided with a fixed blade which is supported at a predetermined position and a movable blade opposed to the fixed blade, the movable blade being displaced so that its position of engagement with the fixed blade shifts continuously, the movable blade capable of being attached and detached.
REFERENCES:
patent: 4907014 (1990-03-01), Tzeng et al.
patent: 5001952 (1991-03-01), Myogadani
patent: 5833380 (1998-11-01), Hosomi et al.
patent: 5887999 (1999-03-01), Smith et al.
patent: 6155731 (2000-12-01), Bertalan et al.
patent: 6347896 (2002-02-01), Robinson
patent: 6361231 (2002-03-01), Sato et al.
patent: 6443645 (2002-09-01), Takei et al.
patent: 6447187 (2002-09-01), Robinson
patent: 11-208041 (1999-08-01), None
Hayashi Katsumune
Koyama Hiroyuki
Yamada Kouichi
Frishauf Holtz Goodman & Chick P.C.
Ghatt Dave A.
Hirshfeld Andrew H.
Toshiba Tec Kabushiki Kaisha
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