US 4,224,872 AGranted

Label strip jam preventing mechanism for hand labeler

AssigneeKabushiki Kaisha Sato Kenkyusho

InventorYo Sato

Life of this patent

Estimating the term…

Loading patent…

Abstract

A label strip jam preventing mechanism for use in a hand labeler wherein the labeler is equipped with a feed mechanism having a feeding roller that is rotatably mounted on the frame of the hand labeler for feeding a continuous label strip. A label strip charging mechanism having a pressure plate covering the feeding roller for assuring engagement between the feeding roller and the label strip. A platen which is reciprocally movable toward and away from a printing head for printing the label strip. The label jam preventing mechanism includes a passage plate which is pivotally connected to the frame and to the platen for providing a passage between the pressure plate and the platen, as the platen shifts in position. A first label holding assembly holds both edges of the label strip at the passage plate. A second label holding assembly holds the both edges and the center portion of the label strip at the pressure plate. Thus, the label strip can be prevented from becoming slack and jamming in the passage between the label supply roll and the platen.

Claims18

Dependent claims

A hand labeler, comprising:

a frame;
a platen supported on said frame;
a printing head supported by said frame and opposable to a label on said platen for printing the label on said platen as said platen is brought into engagement with said printing head;
a feeding roller rotatably mounted on said frame for feeding a continuous label strip to said platen as said feeding roller is rotated;
means for rotating said feeding roller;
a label strip charging mechanism for directing the label strip to pass by and to engage said feeding roller;
said platen being placed for receiving the label strip after the label strip has moved past said charging mechanism and said feeding roller;
means for alternately moving said platen toward and away from said printing head for bringing a label on said platen into engagement with said printing head, as said platen is moved toward said printing head;
said motion of said platen being with respect to said label strip charging mechanism;
a label jam preventing mechanism comprising a passage plate pivotally connected to said platen for defining a continuous path up to said platen;
said passage plate also communicating with said label strip charging mechanism for defining a continuous path from said charging mechanism to said passage plate;
said passage plate being swingable with respect to said charging mechanism and with respect to said platen as said platen moves;
label strip holding means on said passage plate for holding the label strip to said passage plate as said passage plate moves toward and away from said printing head, thereby preventing the label strip from becoming slack.

10 more elements

A hand labeler, comprising:

a frame;
a printing head supported by said frame and opposable to a label on a platen for printing the label on the platen as the platen is brought into engagement with said printing head;
feeding means for feeding a continuous label strip to said platen;
a label strip charging mechanism for directing the label strip to pass by said feeding means, thereby enabling said feeding means to feed the label strip;
said platen being placed for receiving the label strip after the label strip has moved past said charging mechanism and said feeding means;
means for alternately moving said platen toward and away from said printing head for bringing a label on said platen into engagement with said printing head as said platen is moved toward said printing head;
said motion of said platen being with respect to said label strip charging mechanism;
a passage plate pivotally connected to said platen for defining a continuous path up to said platen;
said passage plate also communicating with said label strip charging mechanism for defining a continuous path from said charging mechanism to said passage plate;
said passage plate being swingable with respect to said charging mechanism and with respect to said platen as said platen moves;
first label strip holding means on said passage plate for holding the label strip to said passage plate as said passage plate moves toward and away from said printing head, thereby preventing the label strip from becoming slack.

8 more elements

Dependencies are inferred from the claim text.