JPS6127005Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inserter printing device used for data processing in financial institutions and the like, and particularly relates to improvements in media inserters.

In an inserter printing device that prints on media such as bankbooks and slips, when the media is inserted into the insertion slot, a sensor detects the printed line on the surface of the media and automatically feeds the line to the next line to be printed. . When the printing process is completed, the medium is delivered to the insertion slot. FIG. 1 shows an outline of the printing device, in which a is a plan view and b is a side view.

By inserting the medium 10 into the insertion port 12,
The medium 10 is inserted along the pathway formed by the guide plates 6 and 7. Pinch rollers 2A, 2B, 2C are fixed to the drive roller 4 supported between the side frames 1A and 1B, respectively.
There are 2D, pinch rollers 2A and 2B, 2C and 2.
D transports the medium 10 by mutually combined rotations. At this time, the sensor 11 detects, for example, the first date of a printed line on the surface of the medium 10, and detects a hyphen displayed between the numbers of the year, month, and day.
The line with this hyphen printed is treated as a printed line and is moved to the printing position of the line to be printed this time. Then, the pinch rollers 2A, 2B, 2C, and 2D stop. During this transfer, when the leading edge of the medium 10 passes through the rollers 2C and 2D, a guide plate is installed to prevent the medium from curling or the like and jumping out of the pathway formed by the guide plates 8 and 9 and being fed into the printing head 5 side. 9 slides to the state shown by the dotted line. The slid guide plate 9 is twisted back at the same time as the pinch rollers 2C and 2D stop. When the medium 10 is set in the predetermined position, the print head 5
is moved left and right by a carriage (not shown), and further protrudes to sandwich the platen 3 and medium 10, and prints via the ribbon. When printing within one line is completed, the print head 5 returns to the home position and the line feed is controlled by the pinch rollers 2A and 2.
B, 2C, and 2D, and print again as described above. When all printing is completed, the print head 5 returns to the home position and the medium 10 is ejected to the insertion slot 12 by the pinch rollers 2A, 2B, 2C, and 2D. In the media inserter of such a device, the media can be set automatically by inserting the media into the insertion slot, but if a non-standard document is used as a medium during maintenance or adjustment, the setting is automatically performed. After setting, the printing will be as specified.
It is not set in the correct position, but is set out of position. Therefore, setting is often done manually by inserting the form by hand. In this case, pinch rollers 2A to 2D in the pathway
Separate the mutually abutting combinations, hold the form with one hand and align it with the predetermined printing position, return the pinch rollers 2A to 2D to their original positions with the other hand, pinch the form, and set it. conduct. This uses both hands,
In addition, since the setting position is determined while holding the paper, workability is poor, and furthermore, if the hand holding the paper is released before the pinch roller is returned, the paper may fall into the printing section. Also, when inserting the medium, it is possible to keep the pinch rollers in contact with each other and manually drive the pinch rollers, but the drive system of the pinch rollers has a load, so it is not possible to drive the pinch rollers manually. This requires major structural changes and is uneconomical.

The purpose of the present invention is to eliminate the above-mentioned problems, and includes a guide roller that is driven to rotate in the same way as the pinch roller that transfers the medium, and a leaf spring that faces and contacts the roller. This is achieved by a medium inserter which holds the medium between the two and applies equal frictional force to the medium.

The present invention will be described in detail below with reference to the accompanying drawings. FIG. 2 shows an embodiment of the present invention, in which a is a front view and b is a side view. The pinch roller 2A is fixed to a rotating shaft 4A supported by bearings 4A and 4B, and is rotated by driving of the rotating shaft 4A. A guide roller 13 is fixed to this rotating shaft 4A, and is driven to rotate in the same way as the pinch roller 2A. Guide roller 13
A leaf spring 14 is provided at a position opposite to. The leaf spring 14 has one end fixed to the guide plate 6 and the other end in contact with the guide roller 13 so as to press it. On the other hand, the pinch roller 2B is fixed to the rotating shaft 4B, and as the rotating shaft 4B moves, the pinch roller 2B
A and 2B are left open or closed. When setting the medium automatically normally,
The medium 10 is inserted into the insertion port 12, and the medium 10 is inserted along the pathway formed by the guide plates 6 and 7. At this time, pinch rollers 2A and 2B
is in an open state, and the leading edge of the medium 10 passes through the gap between the pinch rollers 2A and 2B. However, at the contact surface between the guide roller 13 and the leaf spring 14, the leaf spring 1
Push 4 apart and pass. Thereupon, the leading end of the medium 10 is inserted up to the position of a stopper 15 that protrudes to block the pathway.

Next, insertion of the medium 10 is detected by a sensor or the like, the pinch rollers 2A, 2B are closed, and the stopper 15 opens the pathway. Therefore, the medium 10 is transferred by driving the pinch rollers 2A and 2B, and the leading edge of the medium 10 is sent out from the printing section further along the pathway formed by the guide plates 9 and 8. During this transfer, the printed surface of the medium 10 is detected by a sensor, a printed line is detected, and the pinch rollers 2A, 2B are stopped at the position where the line to be printed this time is at the center of the platen 3. Thereafter, line printing is performed by the printing head 5 as described above.
After printing is completed, the pinch rollers 2A and 2B rotate in the opposite direction to the direction of insertion, and perform line feed and further ejection. When discharging, the leading end of the medium 10 is transferred to the stopper 15 position,
The stopper 15 is made to protrude into the pathway to block the pathway and put the pinch rollers 2A, 2B in an open state. Since medium 10 is free,
It can be taken out from the insertion port 12. When setting the medium manually, open the stopper 15 that blocks the pathway, insert the medium 10 into the insertion slot 12, and then insert the medium 10 into the gap between the open pinch rollers 2A and 2B, the guide roller 13, and the leaf spring 14.
and the contact surface of the platen 3, and align the printing position so that it is at the center of the platen 3. At this time, since the medium 10 is held between the guide roller 13 and the leaf spring 14, even if the hand holding the medium 10 is released, the medium 10 will not fall and can be easily set. After the setting is completed, printing, line feed, and ejection are performed in the same way as described for automatic setting.

FIG. 3 is an enlarged view of the guide roller and leaf spring.
The guide roller 13 and the leaf spring 14 always hold the medium 10 between them, and therefore, they must be made so that they do not become a load when transporting the medium 10 during insertion, line feed, and ejection. When the guide roller 13 rotates in the direction A, a frictional resistance indicated by A' is generated in the leaf spring 14. Conversely, when the guide roller 13 rotates in the direction B, a frictional resistance shown as B' is generated in the leaf spring 14. Therefore, the guide roller 13 is arranged so that the force with which the guide roller 13 transports the medium 10 and the frictional resistance generated between the leaf spring 14 and the medium 10 cancel each other out.
3 and the leaf spring 14 are made of the same material.
The frictional force is the same. Thereby, even if the medium 10 is sandwiched between the guide roller 13 and the leaf spring 14, the load during transport can be reduced to zero. If the frictional forces between the guide roller 13 and the leaf spring 14 are different, the transporting force of the guide roller 13 will become stronger, or conversely, the frictional resistance of the leaf spring 14 will become stronger, creating a load on the printing line at the time of setting or line feed. A deviation will occur.

As explained above, the present invention is based on the pinch roller 2.
A guide roller 13 that rotates in the same way as A and 2B,
This is a medium inserter in which a plate spring 14 facing and in contact with a guide roller 13 is provided so as to have the same friction coefficient, and the medium 10 is held between the plates. Therefore, when setting the medium 10 manually, since the medium 10 is held between the guide roller 13 and the leaf spring 14, the setting is easy, and the medium 10 can be set easily.
Since there is no load during the transfer of 0, there is an advantage that no misalignment of printed lines occurs during line feed during automatic setting.

[Brief explanation of the drawing]

FIG. 1 shows an overview of the conventional media, in which a is a plan view, b is a side view, FIG. 2 is a plan view, b is a side view of a medium inserter according to the present invention, and FIG. 3 is an enlarged view. In the figure, 2A, 2B...pinch rollers,
3... Platen, 4... Rotating shaft, 5... Printing head, 6, 7, 8, 9... Guide plate, 10... Medium, 12... Insertion slot, 13... Guide roller, 14
. . . Leaf spring, 15 . . . Indicates a stopper. 〓〓〓〓〓

Claims (1)

[Scope of utility model registration request] an insertion port into which a medium to be printed is inserted; at least one set of rollers that are in contact with or separated from each other;
It has a printing part that prints information on the medium, and by separating the rollers and inserting the medium into the insertion slot, the rollers come into contact, the medium is held, and transferred to the printing part, and set to a predetermined position. , a medium inserter that performs line feed and ejection is provided with a guide roller that is driven to rotate in the same manner as the pinch roller and a plate spring that faces and contacts the guide roller, so that the frictional force between the guide roller and the plate spring against the medium is reduced. A media inserter characterized by equality.