DE2300926A1 - DATA RECORDING DEVICE - Google Patents

Description

"Data recording device"

The invention relates to printing devices and, more particularly, to data recording devices for printing groups of printed characters which are machine-readable. The quality of these prints is as a result essential. Machine-readable printed characters are usually in a stylized form and are used for optical purposes Code recording with the help of so-called OCR devices. They can also exist as magnetic paint records, in which case they can be read by so-called MICR devices. The printing marks mentioned require a very precise shaping of the outline

Patent Attorneys Dipl.-Fng. Martin Licht, Dipf.-Wirtsch.-Ing. Axel Hanimonn, PhD. Sebastian Herrmann _o

8 MDNCHEN 2, THERESIENSTRASSE 33 · Telephone: 281202 · Telegram address «!« ·. Lipatli / Munich ~ * '

Bayer, Vereinibank Munich, branch. Oikar-von-Miller-Rinfl, toilet no. H249S Poihchedt account: Munich No. 143397 Oppenauer Mr »PAT IN TA N WAIT DR. REiNHOLD SCHMIDT

309829/0489

230092a

- 2 as well as a uniform density of the area filling.

There have already been some improvements to data loggers made which forms and documents print out with machine-readable data. Thereby were compensatory Pressure rollers or plungers are used to achieve a uniform pressure even when the thickness of the embossed card and / or form changed from case to case.

Other proposals see the use of a double pressure roller before. The two pressure rollers of this arrangement can be operated independently of one another and are operated in such a way that when moving in a first direction abuts one of the pressure rollers over the form to make a first impression, while a second Group of print marks is printed by the second print roller when the print rollers are in opposite directions over move the form. An arrangement of this type is described and explained, for example, in US Pat. No. 3,272,120.

Another improvement over devices of this type is in U.S. Patent 3,577,917. In this arrangement, a pressure roller is carried by a shaft which is in a movement path moved over the bed or the pressure abutment of the machine. On this is an embossed card and a form arranged one above the other. The pressure roller is axially displaceable on the shaft from one end to the other, so that it is located at one end of the shaft and can move in a first path to apply a first group of printed characters.

309829/0469

2300928

to press. After completing this impression, the pressure roller is shifted towards the other end of the shaft and moves in a second trajectory, when the return movement of the shaft takes place, in order to print a second group of printed characters. The displacement of the pressure roller of the construction described in this patent is done with the help of a C-shaped Bracket which can be pivoted about a pin. When the bracket rotates in one direction, it pushes the platen axially towards one of the ends of the shaft. When it rotates in the opposite direction, the bracket pushes the pressure roller towards the opposite end of the shaft. The bracket is with the help of an eccentrically acting spring in a These two positions are held and are each shifted into the opposite position by pins engaging it. the Pins or stops are on opposite ends the trajectory. When the bolt used for the rotatable mounting of the bracket moves over the end of the printed mark, the bracket strikes in each case on the stops changing the position of the bracket. So the bracket is eccentric in one of the two Positions pressed.

If the information to be printed is not large and as a result the lines of information are not long, this method of actuating or switching the bracket is sufficient by you move it over the print line and the movement maintains until it rests against the respective stop and is actuated by this. However, when recording extensive information or are to be printed, this requires a considerably larger line length. Necessarily, this means increasing

-4-

309829/0469 '

Overall length of the pressure device. In many cases it is desirable to keep the machine to an absolute minimum so that even The slightest reduction in length is of great advantage. With the help of the eccentric displacement arrangement according to US Pat. No. 3,577,917 it is necessary that a certain length of the platen or print bed extends over the lines of the print characters, to allow the required movement of the shaft for the purpose of moving the print roller.

According to the invention, a data recording device with a movable Provided pressure roller in which a bracket is used to axially a pressure roller between the two outer ends to move a shaft carrying the roller. The bracket is moved in one direction by moving the shaft accordingly Print line shifted out until it strikes a pin or abutment and is releasably locked in this position. At the At the other end of the movement, the lock is unlocked so that the bracket pushes the pressure roller towards the opposite end the shaft can move without further movement of the shaft beyond the release or unlocking position .hinaus required is. In this way, the total length of the abutment is reduced, which is required to accommodate the required print lines and move the platen.

The invention is explained below using an exemplary embodiment with reference to the accompanying drawings.

Fig. 1 is a perspective view of a data recorder according to the invention with the cover removed

309829/0469

Fig. 2 is a longitudinal sectional view of the drive of the data recording apparatus;

Figure 3 is a cross-sectional view of the drive;

Fig. 4 is a top plan view of the drive in the home position; in which the pressure roller is in an extreme position on the shaft;

Fig. 5 is a view similar to Fig. 4, in which the drive is in its operative position of motion while the pressure roller is located at the opposite end of the shaft? and

FIG. 6 is a sectional view taken from line 6-6 in FIG. 5.

As shown in Fig. 1, the data recording device 10 has a Base 12, which is equipped on the rear part with an abutment 14 serving for data recording. In a slot 16 of the abutment is a conventional embossed plastic or Plastic card can be inserted, which bears the name of the customer and other identification information, such as the address and an account number. The abutment 14 is also provided with several slots 18a, 18b and 18c for receiving different identity plates. For example, the slot 18a can be a plate of the pharmacist preparing the preparation or the company or company that sends it record, the slot 18b can serve as an identification for location determination and accommodate a plate which shows the location of the Mail order business or office, while the slot

- 6-

309829/0469

18c may contain a code printing plate of permanent identification.

A first set of variable print data wheels 20 is on one side of the Slot 16 is provided. The wheels are operable by a first set of levers 22. A second set of variable print data wheels 24 is provided at the opposite end of the slot 16. These wheels can be adjusted by a second set of levers 26. A date carrier 28 is located near the slot 16 and can be adjusted each day to print the appropriate date. The various printing plates and printing wheels form a zone of printing elements. Guides 28 are used to hold a form in one of the various print wheels and print media in the. different To introduce slots in a superimposed manner. The form is shown in dashed lines and is identified by the BeHugs number 30 designated.

The structure and mode of operation of the various components of the machines described are of conventional and known type and do not in themselves form part of the invention.

According to FIGS. 1, 2 and 3, a pressure roller drive 31 is used, which has a substantially U-shaped frame 32 on wheels 34. The wheels run on the abutment 14, so that the platen drive from the outermost one shown in FIG left starting position to the right in the active position shown in Fig. 5 and back to the starting position. That The pressure roller drive 31 is guided in this movement by legs of the U-frame 32, which extend through slots 36 (FIG. 1) in the abutment 14 extend. A cover 37 (shown in the removed position for the sake of clarity) covers the printing

- 7 -

309829/0469

roller drive 31.

A shaft 38 serving to support the print roller is within of the U-frame 32 and extends through elongated slots 39 of the opposite legs of the frame. A A pair of adjustable bolts and nuts 40 extend through the top of the U-frame 32 (Figs. 2-4) and abut the Top of shaft 38. A pair of tension springs 42 extend from the shaft 38 to the top of the U-frame 32. Tension springs 42, together with the adjustable screws and nuts 40, allow the shaft 38 to move upwards or can move down to change the pressure exerted by the pressure roller in a known manner.

A pressure roller 48 is rotatably mounted on the shaft 38. The storage enables an axial movement of the printing roller at the same time on the shaft 38. The axial position of the pressure roller 48 on the shaft 38 is determined by a generally C-shaped bracket 5Ό determines which pair of mating tips 52 and 54 at the opposite ends of the C-body (Figures 4 and 5). An upwardly extending shaft 55 of the The bracket 50 enables the bracket to be pivoted on a pivot pin 56. The bracket is shown in FIGS tensioned counterclockwise by a spring 58. For this purpose, the spring 58 extends between a pin 59, which protrudes from a cam 60 of the bracket 50, and one of the screw bolts 40. The range of motion of the bracket in both Directions are bounded by a pair of raised and lowered surfaces 60a and 60b which are arranged to face respectively

309829/0469

in one of the extreme positions of the bracket, i.e. clockwise as well as counterclockwise, on the shaft 38 are present. If there is no counter-pressure on the bracket 50, this and the pressure roller 48 are normally in the form shown in FIG Tense position. The bracket 50 can, however, be moved into the position shown in FIG. 4 by the action of a pin 61 on the abutment 14 be pivoted. To this end, the pin 61 presses against a reaction surface 62 of the bracket 50 when the drive is in its in Fig. 1 shown extreme left position is moved. The movement of the drive 31 in this position has the consequence that the for actuating the pivoting movement serving pin 61 strikes against the reaction surface 62 and the bracket 50 in its outermost Pivoted position in terms of clockwise rotation. Thus, the pressure roller 48 is axially into that shown in FIG Position moved.

The bracket 50 is detachable in the position shown in FIG a locking mechanism 63, which is shown in FIG. The locking mechanism 63 has a Pawl 64, which is pivotably mounted on a pin 65 and directed counterclockwise or essentially vertically 3 and 6 is displaceable bar. As shown in these figures, the pawl is actuated with the aid of a torsion spring 66 usually tensioned downwards, i.e. clockwise. The pawl carries a locking surface 68 on the underside, which can engage on an engagement surface 70 of an arm 72 extending from the bracket 50 when the pawl 64 is in its lower Position according to FIGS. 3 and 4 is located. In this position, the pawl holds the bracket 50 in its clockwise direction

309829/0469

Position according to FIG. 4. However, if the pawl 64 according to FIG. 6 in the raised position is pivoted, the locking surface 68 is released from the engagement surface 70, so that the bracket 50 is below Tension of the spring 58 can pivot counterclockwise as shown in FIG to move axially into the position shown. In order to enable the free pivoting movement of the bracket 50, an undercut is provided Channel 64 is provided at the base of the pawl 64 to form a space for the arm 72 of the bracket 50 so that it can can move freely after releasing the locking surface 68 from the engagement surface 70.

To optionally release the bracket 50 from its locking position, is at the right end of the abutment 14 a release block 76 with an inclined surface 78 in association with one of the guides 29 according to FIGS. 3 and 5 are provided. If the drive 31 according to Fig. 1 is moved from left to right, the pawl 64 holds the bracket 50 in its locked position shown in FIG. 4, so that the pressure roller 48 is in a first movement path over the Abutment 14 moves and a pressure on the by the pressure elements covered zone. As platen drive 31 approaches the end of its path and platen 48 nears the last With the pressure wheels and pressure plates exposed, the base of the pawl 64 begins to slide up along the inclined surface 78. on in this way, the pawl 64 is rotated counterclockwise upwards until the locking surface 68 moves away from the engagement surface 70 solves, as can be seen in FIG. 6. At this point in the sequence of movements, the bracket 50 is under the tension of the spring 58 rotated clockwise into its position shown in Fig. 5,

- 10 -

309829/0469

while the platen 48 moves axially into the position shown will. With the return movement carried out from right to left of the drive 31 moves as a result, the pressure roller 48 in a second path of movement in which it a pressure exercises on another group of pressure marks. If, when the drive moves back to the left, the The pressure roller 48 has detached from the slot 18b, the pin 61 contacts the reaction surface 62 on the bracket 50, so that further movement of the pressure roller drive 31, the bracket 50 is pivoted clockwise into the position shown in FIGS. 1 and 4. Since the Has detached pawl 64 from the inclined surface 78, the pawl 64 is in the return movement of the pressure roller drive 31 in the Starting position with the help of the torsion spring 66 down v &. tense. So when the bracket 50 is pivoted into the position shown in Fig. 4, the pawl 64 comes back to the engagement surface 70 engages and locks the bracket in this position. As a result, the platen 48 is ready for the subsequent printing operation.

From the preceding description it can be seen that in a Direction of the printing roller drive 31 a certain additional movement distance beyond the printing characters is required, to pivot the platen 48 into one position. When the platen 48 is at the other end of the travel from the print characters has released, the locking mechanism 63 is released or unlocked to an axial displacement of the pressure roller in the opposite direction without the need for a corresponding further movement of the drive. as As a result, the overall length of the data recording device can be reduced to a certain extent, which is the case with recording devices essential for coping with extensive information in line form Meaning is.

309829/0469 ~ ¹¹ "

Claims (5)

PATENT CLAIM E: 1. Data recording device with a printing element and a form to be printed platen, a platen drive which is movable during an impression from a first end of the platen to a second end of the same and back to the first end, and with a holder which rotates the platen an axis directed transversely to the direction of movement of the drive in order to allow the pressure roller to come into engagement ⁵ with pressure elements located in a zone within the printing path, characterized in that the pressure roller (48) by means of a pivoting device (50) between a first and a second Position is displaceable that a clamping device (58) is assigned to the pivoting device to normally press the pressure roller in the first position, that an actuating device '(61) cooperates with the pivoting device (50) to move the pressure roller in accordance with the movement of the drive Direction of the first Move the end of the web into its second position, that a releasable locking device (64) releasably locks the pressure roller (48) in the second position and holds it in this position when the drive is moved in the direction of the second end of the web, and that an unlocking device (78) is provided between the zone of the pressure elements and the second end of the web to the locking device (64) as required - 12 - 309829/0469 2300928 to unlock the movement of the drive from the first end of the track, whereby the platen is slidable from the second position to the first position with a minimum of movement of the drive. 2. Data recording device according to claim 1, characterized in that that the pivoting device consists of a bracket (50) which can be pivoted on the pressure roller drive between two extreme positions is to move the pressure roller (48) into one of its two positions so that an engagement surface (70) is formed on the bracket, and that a pawl (64) arranged on the pressure roller drive can be releasably applied to the engagement surface (70) of the bracket (50). 3. Data recording device according to claim 2, characterized in that that a spring device (66) normally applies the pawl (64) to the contact surface of the bracket. 4. Data recording device according to claim 3, characterized in that that the unlocking device consists of an inclined surface (78) which is arranged so that it cooperates with the pawl (64), to release them from engagement with the engagement surface (70) of the bracket at one end of the path of the platen drive. 5. Data recording device with a platen, which holds printing elements and a form to be printed, with a Pressure roller drive, which moves from a starting position forwards over the pressure abutment into a working position and back into the Starting position is movable in order to make an impression, and with a holding device, which is a pressure roller on the pressure roller drive in such a way that it moves at right angles to the - 13 - 309829/0469 supply extending axis is rotatable, characterized in that the pressure roller can be moved between a first and a second position along the axis by means of a pivoting device, that the pivoting device is assigned clamping means which normally press the pressure roller into the first position, that a releasable locking device releasably locks the pressure roller in the second position that an actuating device first Has means which cooperate with the pivoting device, to move the platen to the second position in accordance with the movement of the platen drive in one direction, and that an unlocking device the locking device at a certain position corresponding to the movement of the pressure roller drive unlocked in the opposite direction. 309829 / CUÖ9