Safely retracting paper-cutting apparatus for a roll paper printer
AssigneeCalComp Inc.
InventorsPaul S. Tzeng, Richard Mansueto
Life of this patent
Estimating the term…
Abstract
An apparatus which records an image, such as text, onto printable media, such as paper, has a removably closable lid, a paper cutting blade mounted on an pivoting arm having an equilibrium position in which the blade is withdrawn in a safe position, and a rod actuator cooperative with the lid for rotating the pivoting arm whenever the lid is closed so as to move the blade from the safe position to an operative position adjacent a cutting block suitable for severing the media. The pivoting arm is rotatable about a pivot pin, the blade being attached at one end of the arm and the other end of the arm being lighter, so that the blade tends to fall toward the safe position under a front cover of the apparatus whenever the lid is opened.
Claims24
In a device which records an image onto a roll-fed media, safety cutting apparatus for severing the media into lengths containing individual image portions comprising:
- (a) a removably closable lid carried by the device;
- (b) media cutting means mounted on a pivoting arm carried by the device, said media cutting means being pivotable between a safety position in which said cutting means are withdrawn to a safe position within the device and a working position in which said cutting means are in interacting contact with a cutting member carried by the device past which the media is moved, said media cutting means being biased towards said safety position and being movable across said cutting member to sever the media when in said working position;
- (c) rod actuator means cooperative with said lid for rotating said pivoting arm from said safe position to said working position whenever said lid is closed;
- and
- (d) cutting actuation means for moving said media cutting means across said cutting member to sever the media.
Safety printing apparatus for printing onto a roll-fed media and for severing the media into image-bearing portions comprising:
- (a) a roll of the media disposed between a supply point and an outlet point;
- (b) printing means disposed between said supply point and said outlet point for printing images on the media;
- (c) a removably closable lid;
- (d) a cutting blade disposed under said lid between said printing means and said outlet point;
- (e) pivoting means for supporting said cutting blade and for permitting said cutting blade to fall to a withdrawn safety position from the force of gravity;
- and
- (f) means on said lid for moving said pivoting means and said cutting blade therewith whenever said lid is closed away from said safety position to an operating position.
Safety cutting apparatus for use in a printing device having a removably closable lid and a cover for covering a portion of the device and having a lip defining an opening in the cover through which printable media is transported, said cutting apparatus comprising:
- (a) a cutting blade disposed under the lid and supported on one end of an arm which is pivotable about a fulcrum, the other end of said arm being lighter than said one end whereby said cutting blade tends to fall under the lip of the cover to a safety position from the force of gravity;
- and
- (b) means for pushing said other end of said arm down whenever said lid is closed whereby said cutting blade is pushed up from under the lip of the cover to a working position when said lid is closed.
Safety cutting apparatus for use in a printing device having a removably closable lid and a cover for covering a portion of the device and having a lip defining an opening in the cover through which printable media is transported, said cutting apparatus requiring no slot through which a printable media must be fed and comprising:
- (a) a cutting blade disposed under the lid and moveable to a storage position on one side of a central cutting area over which the printable media passes;
- (b) a cutting block under which the printable media is transported between a supply roll thereof and said opening in said cover means, said cutting block being carried by said lid to be raised in combination therewith and to be lowered to an operative position adjacent said lip of said cover means when said lid is closed, said blade being adjacent said cutting block when said cutting block is in said operative position;
- and,
- (c) drive means for moving said blade in a direction transverse to the direction in which the printable media is transported when said cutting block is in said operative position so as to press the printable media against said cutting block and sever the printable media.
Dependencies are inferred from the claim text.