JPS5940118B2 - Front inserter support mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a front inserter support mechanism in a printer that prints on single sheets and continuous sheets.

FIG. 1 shows an example of a printer that prints using a front inserter.

In the figure, reference numeral 1 denotes a front inserter, and the front inserter 1 is provided so that the form suction and ejection rollers 2 are directly above the printing section. The slips stored in the front inserter 1 are ejected one by one between the ribbon 4 fed out from the ribbon cartridge 3 and the platen 5 by the slip suction and ejection roller 2, and the printing on the slips is done in dots. This is done by ejecting a wire supported by the print head 6. This front inserter 1 is conventionally designed to be tilted in the direction of arrow A around a rear fulcrum 8, so that continuous forms 7 can be easily set. However, since the upper part of the printing section is covered by the front inserter 1, the visible printing range is narrow and it is difficult to replace the ink ribbon. The present invention is intended to solve the above-mentioned drawbacks, and provides a front inserter that not only facilitates the setting of continuous forms, but also increases print visibility and facilitates ink ribbon replacement. Its purpose is to provide a support mechanism.

Embodiments of the invention will now be described with reference to FIGS. 2 and 3. In Fig. 2, 11 is a front inserter;
12 is a front end support mechanism provided at the front end of the front inserter 11, and 13 is a rear end support mechanism provided at the rear end of the front inserter 11.

The front end support mechanism 12 includes an engaging member 14 fixed to the front inserter 11 and a pin 1 fixed to the front inserter 11.
5, and a spring 17 provided between the front inserter 11 and the lock lever 16.

A notch 18 is provided in the support fitting 14, and the lock lever 1
6 is provided with a protrusion 19. The rear end support mechanism 13 includes a support fitting 20 fixed to the front inserter 11, a set lever 22 and a foot lever 23, which are rotatably supported by the support fitting 20 via a pin (shaft) 21, and a reset lever 22. A spring 24 provided between the foot lever 23, an actuator 26 swingably supported by the reset lever 22 via a pin 25, a pin 27 slidably supported by the actuator 26, and a spring 24 provided between the actuator 26 and the pin. 27; an L-shaped set lever 29 rotatably supported by the pin 27; and a lift lever 31 rotatably supported by a pin 30 fixed to the front inserter 11. A rope 32 that connects the actuator 26 and the lift lever 31, and a spring 33 that applies tension to the rope 32.
It becomes more.

In the state shown in the figure, the center of the pin 25 is above the line connecting the centers of the pins 21 and 27, and the pin 25 is engaged with the positioning pin 34 provided on the front inserter 11, and the spring 25
The set lever 29 is engaged with the set lever 29 and is urged counterclockwise by the spring 28, and the set lever 22 is kept in balance and the spring 24
The foot lever 23 that is activated is
A pin 23a provided on the set lever 22 is engaged with the set lever 22 for positioning. Next, the procedure for mounting the front inserter 11 equipped with such front and rear end support mechanisms into the printer will be explained with reference to FIG. First, when the front end support mechanism 12 is opposed to the unit mounting post 35 provided on the printer body and the front end of the front inserter 11 is lowered, the inclined surface 36 of the notch 18 and the lower inclined surface of the protrusion 19 37 engages with the post 35, the lock lever 16 swings counterclockwise against the biasing force of the spring 17, and the protrusion 19 rides over the post 35 and the front inserter 1
The front end of 1 is swingably supported by a post 35.

In this state, if you lower the rear end of the front inserter,
One end of the set lever 29 engages with an inclined surface 39 of a unit mounting plate 38 provided on the printer main body, and the set lever 29 rotates counterclockwise about the pin 27. The set lever 22 engaged with the other end rotates clockwise about the pin 21, and the foot lever 23 is also driven via the pin 23a to rotate in the same direction. And the center of pin 25 is pin 2
1 and 27, the reset lever 22 and the foot lever 23 are driven by the spring 28 via the actuator 26 to further rotate, and the engagement pin 40 at the tip of the foot lever 23 moves to the inclined surface 39. Press. Finally, the pin 21 fits into the recess 41 of the unit mounting plate 38, and the mounting of the front inserter 11 is completed. The front inserter 11 can be used in this state. Next, the operation when moving back will be explained.

When the rear end of the front inserter 11 is lifted from the position indicated by the solid line to the position indicated by the dashed-dotted line in FIG. The engagement pin 40 automatically falls into the recess 41, and the front inserter 11 is positioned at the backward tilted position indicated by the dashed line.

In this state, the print visible range increases and the ink ribbon can be replaced easily. To return the front inserter 11 from this position to the position indicated by the solid line, use the lift lever 31
push up. When the lift lever 31 is pushed up,
The reset lever 22 is driven once via the rope 32 and the actuator 26 to rotate counterclockwise to the initial position. At this time, the foot lever 23 does not rotate because the engagement pin 40 has fallen into the recess 41, and energy is stored in the spring 24. In this state, the engagement pin 40 is inserted into the recess 4.
1, the foot lever 23 is biased by the spring 24 and rotates counterclockwise. When the front inserter 11 is lowered, the front inserter 11 returns to the position indicated by the solid line. . Next, the operation when moving forward will be explained.

When the front inserter 11 is placed at the position indicated by the solid line in FIG.
comes off from the unit mounting post 34.

If the front part of the front inserter 11 is lifted in this state, the front inserter 11 can be positioned in the forward tilted position shown by the two-dot chain line in FIG. In this state, continuous forms can be easily set. As described above, according to the present invention, the front inserter can be tilted forward and backward with a simple one-touch operation, which facilitates the setting of continuous forms and the replacement of ink ribbons. It is possible to improve print visibility.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram of the main parts of a printer that prints on single sheets and continuous forms, Fig. 2 is a front view showing an embodiment of the support mechanism of the front inserter according to the present invention, and Fig. 3 is an explanatory diagram of the same operation. be. In the figure, 11 is a front inserter, 12 is a front end support mechanism, 13 is a rear end support mechanism, 14 is an engaging member, 15, 25,
27, 30, 34 are pins, 16 is lock lever, 17,
24, 28, 33 are springs, 19 is a protrusion, 20 is a support metal fitting, 21 is a pin (shaft), 22 is a beam set lever, 2
3 is a foot lever, 26 is an actuator, 29 is a set lever 31 is a lift lever, 32 is a rope, 35 is a unit tower mounting post, 38 is a unit tower mounting plate (tower mounting plate), 40 is an engagement pin, 41 is a It is a recess.

Claims (1)

[Claims] 1. In a printer that prints on single sheets and continuous forms, and in which single sheets are inserted into the printing section by a front inserter, a support fitting fixed to the rear of the front inserter, and a shaft attached to the support metal fitting, respectively, are used. A reset lever rotatably supported, a foot lever having an engagement pin at its tip, a first spring provided between the reset lever and the foot lever, and a first spring that swings through the reset lever through the first pin. an actuator that is freely supported; a second pin that is slidably supported by the actuator; a second spring that is provided between the actuator and the second pin; and a second spring that is rotatably supported by the second pin. an L-shaped set lever supported by the front inserter, a lift lever rotatably supported by a third pin fixed to the front inserter, a rope connecting the actuator and the lift lever, and applying tension to the rope. A rear end support mechanism made of a spring, and a mounting plate having a recessed portion at an upper end that engages with the shaft when the front inserter is in use and in a forward-folded state and engages with the engagement pin when the front inserter is in a rearward-folded state. Features a front inserter support mechanism.