JPS59231Y2 - Imprinter - Google Patents

Description

[Detailed description of the invention] The present invention relates to an imprinter, in particular, when a platen carriage is moved back and forth on a printing bed, it prints half of the printing range on the outbound trip and the remaining half on the return trip. This imprinter has a simple structure and can easily produce good printing effects.

To explain the embodiment below, 1 is a printing plate for placing printing plates 3P and 4P (Figures 2 to 4) on a flat surface, on which necessary data such as credit card 1 to card or store name plate are embossed. 2 is a printing bed support leg, 5 is a roller platen carriage (hereinafter referred to as a carriage), 6 is a folded strong steel plate, and both hems 6a and 6b have the above-mentioned printing on them. A carriage frame is provided with three guide rollers 7 which are engaged with the parallel edges of the bed 1, and 8 are arranged at right angles to the reciprocating path when the frame 6 is reciprocated over the printing bed. It is also a holder support shaft that is fixed to the frame 6 and pivots through the upper portions of the roller platen holders 10 and 13 so that it can be moved while maintaining an attitude parallel to the surface of the bed 1 at an appropriate distance.

9 is the lower part of the holder 10, 12 is the holder 1
The roller platens 9 and 12 are rotatably attached to the lower part of each platen 3 parallel to the spindle 8, and the roller platens 9 and 12 are free from gravity when the printing plate mounting table 3, 4, etc. is not present below. In this position, the lowest part of the roller platens 9, 12 is higher than the upper surface of the bed 1, but higher than the upper surface of the printing plate mounting tables 3, 4 or the printing plates 3P, 4P. It is assumed that it will be downward.

Reference numeral 11 in FIG. 3 indicates a stopper screw that restricts only the clockwise rotation of the roller platen holder 10 on the holder support shaft B, and 14 indicates a counterclockwise rotation of the roller platen holder 13 in FIG. 4. This is a stopper screw that only restricts the rotational posture in the direction.

Since this embodiment is as described above, the printing plates 3P and 4 are
After placing the slip paper F to be printed covering P, etc., the carriage 5 is moved from the left position as shown in the first diagram to the right (arrow R in Figure 3) and approaches the range where the printing plate 3P is placed. The printing plate 3P comes into contact with the roller platen 9 through the paper F, and the holder 10 is rotated clockwise to try to raise the roller platen 9 above the paper F, but this rise is prevented by the stopper screw 11. When the roller platen 9 is further forced to pass over the paper F, it maintains an appropriate printing pressure against the paper F, and while the carriage 5 is moving in the right direction as shown in 1-. The roller platen 12 (shown by a dashed line in FIG. 3) passes over the printing plate 4P, but the holder 13
Unlike the holder 10, the printing plate 4P can be rotated in the clockwise direction with sufficient freedom, so printing of the printing range by the printing plate 4P is not actually performed.

Next, when the carriage 5 is moved beyond the printing range to the left end of the bed 1, the above-mentioned tables 3, 4, etc. are not present below, so the roller platens 9 and 12 are brought to the lowest position again by gravity, and then the carriage is returned. When the holder 13 is moved to the left (indicated by the arrow hole in FIG. 4) during the stroke, the counterclockwise rotation of the holder 13 is properly regulated by the screw 14, as can be inferred from the explanation in FIG. 3, and the roller platen 1
2 performs the required printing on the slip paper F using the printing plate 4P, and the roller platen 9 prints the printing plate 3P without performing effective printing.
When the carriage 5 returns to the left position, both the roller platens 9 and 12 can be at the lowermost position.

As described above, the present invention divides the printing range between the forward stroke and backward stroke of the carriage 5, so that if the printing effect is suitably adjusted only within each narrow printing range, it is possible to easily achieve good printing overall. The present invention provides a new imprinter which can obtain the desired effect, has a printing operation force that is averaged back and forth, and has a simple and durable structure.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is an external view of an imprinter implementing the present invention, FIG. 2 is a view taken from arrow A with the cover of the carriage 5 in FIG. 1 removed, and FIG. 2
In the figure, 1 is a printing bed, 8 is a roller platen holder spindle, 9 and 12 are roller platens, and 10 and 13 are roller platens. The holders 11 and 14 are adjustment levers for the stopper.

Claims (1)

[Scope of utility model registration request] A carriage is provided so as to reciprocate along a certain path parallel to the printing bed, and a roller platen holder support shaft is provided perpendicular to the path and parallel to the bed surface, and rollers are mounted on the shaft, each parallel to the axis. It consists of two sets of roller platen holders that freely rotate and suspend the platen, each of which is rotatably supported individually. The imprinter is characterized by having a swivel that restricts rotation in other directions.