JPS5823231B2 - Check digit type wheel rotation control method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and device for controlling the rotation of a check digit type wheel, and particularly to a numbering device with check digits that simultaneously prints a code number to be printed and a check digit corresponding to the number. The present invention relates to a check digit type wheel rotation control method and device.

Generally, a check digit is a one-digit number calculated from the numerical value of a code number, and is added after the last digit of the code number, for example, to detect errors in coding or the like.

That is, important key numbers, such as account numbers and customer code numbers, are added to prevent errors such as account mistakes.

Conventionally, the method of calculating this check digit is as follows:
Luhn's check
Modulus represented by or with various specified weights 1
0, or similarly the modulus 1 obtained by specifying various weights.
1 etc.

On the other hand, check digits do not necessarily change continuously for each consecutive code number, so conventionally, check digits have been used that allow check digits to be issued simultaneously and consecutively for consecutive code numbers. Obtaining a numbering device was considered to be technically difficult, especially due to the difficulty of its control method, and the problem remained unsolved.

Therefore, when calculating and printing the check digits performed at the administrative stage, addition, subtraction, multiplication, and division are performed according to a predetermined calculation method based on the predetermined modulus and weight for each printed code number, and each code number is checked. The method used was to calculate the de □ index and add it after seven days.

However, this conventional method has the disadvantage that it takes a lot of time and effort to calculate and print the check digit.

In view of the above, an object of the present invention is to simultaneously and continuously print a code number printed by a numbering device and a check digit that corresponds inseparably to the code number and circulates irregularly, by suppressing a pressure rod or the like. An object of the present invention is to provide a rotation control method of a check digit type wheel in a numbering device with a check digit, and a device therefor.

The present invention provides printing having an automatic feed pawl mechanism that rotates back and forth when urged by the pressing operation of a suppressing member, and a pawl locking ratchet attached to each character ring that is engaged with the automatic feed pawl mechanism. a numbering device having a unit, a check digit type wheel rotatably provided coaxially with the printing unit of the numbering device, and the automatic feed generated when the automatic feed pawl mechanism falls into the pawl locking ratchet; The rotation angle of the pawl mechanism is detected, and then, based on the magnitude of the detected rotation angle change amount, information regarding the predetermined rotation amount of the check digit type wheel is selected from a storage mechanism calculated and stored in advance. However, based on this selected information, the check digit type wheel is driven and controlled, thereby achieving the above object.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

First, the properties of the check digit numbers that made it possible to provide the present invention will be explained.

Now, the code number [K] (however = o~n: n is a natural number)
If, for example, the check digit is set to have a modulus of 10 and a weight of 1.3 and 7, the calculated numbers (check digits), including the singular point, are shown in Figure 5. Like "0, 3, 6.9
, 2, 5, 8, 1, 4°7'' were found to be rotated.

At the same time, the number representing the check digit has a modulus of 1
If it is calculated by addition, subtraction, multiplication, and division using the method of 0, then "0"
If "9" appears in the last digit of a code number that starts with 1 digit, then 2 digits, etc., and is then carried up, or if the last 2 digits are "...99" The last 3 digits are "...999", the last 4 digits are [...9999]
j, the last five digits are "...99999j, etc., and when each person carries it up, a singularity occurs, and it has become clear that the contents of each singularity are different.

In other words, if the code number is, for example, from "...9" to "...
・When moving from 1st to 10th place, such as ``10'' or ``...891'' to ``...90'', ``...9''
and "...10" or "...89" and "...90"
'' displays the same number of check digits (in other words, in this case, the circulation in FIG. 5 stops for one digit and displays the same number).

Next, when the code number is carried up from "...99" to the next 100th digit, the check digit of the carried number starts from the check digit number of "...99" as shown in Figure 5. Along the cycle, the third digit is skipped by two numbers (for example, if the check digit of ``099'' is ``0'', the check digit of ``100'' is ``9'').

Furthermore, when the code number "...999" is carried up to the next digit, the check digit of the carried code number is skipped three digits from the check digit of "lower...999" and is the fourth digit. (For example, if the check digit of "...999" is "1", the check digit of "...1000" is "3").

In addition, when the code number "...99991" is carried to the next digit, the check digit of the carried code number is "...9999 J, skipping two digits to the third digit. Numbers (e.g. [...9999
If the check digit of J is "8", [...100O
The check digit of OJ is "7").

When the code number "...99999 J is carried over to the next digit, the check digit of the carried code number is the sixth digit after skipping five digits from the check digit of "...99999 J. for example"·····
・If the check digit of 99999j is “1” then “・
・The check digit of 100000 j is "9")
becomes.

In the same way, the code number increases and consecutive "
It became clear that when the number "9" was punched out, each singular point would display a predetermined number of repeating numbers shown in Figure 5 or the same number, and the check digit of the code number would be specified. .

Next, an embodiment of the present invention that utilizes the properties of the check digit will be described with reference to FIGS. 1 to 5.

In Figures 1 to 3, pawl locking ratchet 1.1
A printing unit 3 having a required number of type wheels 2, 2, .

The spindle 5 close to one side of the printing unit 3
A known printing repeat count setting mechanism 6 is provided on the top.

A check digit type wheel 7 is rotatably mounted on the support shaft 5 close to the other side of the printing unit 3.

A horizontal rod 8 serving as a pole shaft is provided substantially parallel to the support shaft 5.

Both ends of this horizontal rod 8 are rotatably supported by one end of a pole arm 9.9.

The other end of the pole arm 9.9 is rotatably supported by the support shaft 5, so that the horizontal rod 8 can rotate around the support shaft 5 at a constant distance. ing.

An automatic feed pawl mechanism 10 having a repeat number setting pawl 12 is fixed and equipped on the horizontal rod 8.

Each pawl portion 10A, 10B... of this feed pawl mechanism 10 corresponds to each pawl tooth portion I of the pawl locking ratchet 1, 1...
A and IB are respectively engaged with each other by means of springs or the like so as to be able to press and engage with each other.

Each pawl tooth portion I of the feed pawl locking ratchet 1, 1...
A, IB, IC, . . . are provided with known deep carry grooves (not shown) which function when carrying up the numbers displayed on the type wheels 2, 2, .

For example, when the claw 10A falls into this deep carry groove, the claw 1
0B meshes with the corresponding type wheel 2, and the claws 10A, 10B
The type wheels 2 and 2 corresponding to the 3rd digit are rotated at the same time to advance one digit, and when the claws 10A and IOB fall into the carry groove at the same time, the type wheel 2 for the third digit is also rotated at the same time. The rotation angle of the entire feed pawl mechanism 10 with respect to the pole shaft fulcrum ') 8A is formed to gradually increase as the feed is carried out, just like the numbering of the prior art.

A sector 14 is fixed to one end of the horizontal rod 8.

This sector 14 is a fan-shaped gear, and is meshed with a small gear 15 rotatably mounted on the support shaft 5.

The small gear 15, the sector 14, the horizontal rod 8, and the support shaft 5 form a holo movement transmission mechanism 16 that constitutes a part of the check digit drive mechanism 40, and the feed pawl mechanism 10 rotates in the direction of arrow A. Then, the small gear 15 is rotated in the direction of arrow B by being biased 9 by the sector 14.

A fan-shaped encode plate 18 is fixed to the small gear 15 as a rotation amount storage mechanism.

A plurality of arcuate grooves 19A are provided at a rotating peripheral end of the encode plate 18 at predetermined intervals.

19B, 19C, 19D, and 19E are formed (see Fig. 4).

A drive mechanism 20 for driving the check digit type wheel 7 in a predetermined direction is provided between the encode plate 18 and the check digit type wheel 7;
A feeler mechanism 21 for controlling 0 is interposed.

In this embodiment, a rotation amount setting mechanism 17 is formed by the feeler mechanism 21, the drive mechanism 20, and the holo-movement transmission mechanism 16, and the rotation amount setting mechanism 17 and the encode plate 18 as the storage mechanism , a rotation amount control section is configured.

The filler mechanism 21 has a fulcrum 2 on the movable frame 4.
2 is mounted on a shaft, an idler pulley 24 is mounted on a rotary end of the feeler arm 23 on the encode plate 018 side, and the idler pulley 2
4, and a filler pin 25 that supports 4.

An actuating portion 23A of the feeler arm 23 is provided at the opposite end of the feeler pin 25.

This actuating portion 23A is engaged with a horizontal pressure rod 33 (see FIG. 3) that urges the movable frame 4.

The feeler arm 23 is installed so that the rotation surface formed by the rotation locus of the feeler arm 23 is substantially parallel to the encode plate 18.

The filler pin 25 provided on the filler arm 23 extends along the outer peripheral end surface of the encode plate 18 or along the cut groove 19A of the encode plate 18.

It is provided to protrude from the encode plate 18 side so that it can move along the encoder plate 19B.

The drive mechanism 20 has ten saw-toothed teeth 2.
A ratchet gear 26 having a diameter of 6A, and a drive pawl 27 that is engaged with the ratchet gear 26 by a spring or the like so as to be able to press and engage with the ratchet gear 26, and that drives the ratchet gear 26 once in the same direction as the rotational direction of each type wheel 2. a drive pawl locking plate 28 that rotates the drive pawl 27 around the ratchet gear 26; a pulley 29 that is fixed to the drive pawl locking plate 28 and rotates together with the drive pawl locking plate 28; A screw spring 3 whose one end is fixed to this pulley 29
0, and a spring fixing piece 39 fixed to the other end of the torsion spring 30.

Among the constituent members of this drive mechanism 20, the spring fixing piece 39 is fixed to the moving frame 4, the ratchet gear 26 is fixed to the check digit type wheel 7, and the other components are all fixed to the support shaft 5. Equipped to rotate freely.

The idle pulley 24 of the feeler mechanism 21 and the winding pulley 29 of the drive mechanism 20 are connected to a flexible wire 31.
are interconnected through.

One end of the flexible wire 31 is fixed to the winding pulley 29, and after winding the winding pulley 29 clockwise several times or approximately once when viewed from the left in FIG. Turn it half a turn in the same direction.

The other end of the flexible wire 31 is fixed to the movable frame 4.

The screw spring 30 is installed with a slight twist in the direction of arrow C in the figure, and is attached to the filler pin 25 and the support shaft 5.
The screw spring 30 is preset and equipped so that the maximum restoring force is generated when the distance between the shafts is maximum.

A check pawl 32 that prevents the ratchet gear 26 and the check digit type wheel 7 from reversing is pressed into engagement with the teeth 26A of the ratchet gear 26 fixed to the check digit type ring 7 by a spring or the like.

This non-return pawl 32 is pivoted on the movable frame 4, and also serves to stably maintain the stop position of the check digit type wheel 7 with respect to the winding direction E of the winding pulley 29.

As shown in FIG. 3, a pressing rod 33 is engaged with a substantially central portion of the movable frame 4 via a detachment control member 41 and a stopper (not shown).

This pressing rod 33 has the function of lowering the printing unit 3 and rotating the pole arms 9, 9, etc., and urges each component, and similarly to the numbering according to the conventional technology, it is activated by a spring (not shown). It is configured to return to its position.

The stopper (not shown) is configured such that the press rod 33 is lowered by a short distance Lp to move the filler pin 25 to the encode plate 1.
The detachment control has a frame engagement function that prevents the moving frame 4 from descending by being biased by a spring or the like while the moving frame 4 is being transferred to the peripheral end of the moving frame 8, and is engaged with a base frame 34, which will be described later. A member (not shown) is connected to the feeler mechanism 21.
It is connected to the filler operating section 23A.

This detachment control member descends together with the press rod 33 at the same time as the press rod 33 descends, rotates the filler arm 23 during the initial descending distance L1, and moves the filler pin 25 to the peripheral end of the encode plate. It has a function of moving the moving frame and then removing the stopper to set the moving frame in a lowered state.

Then, at the next stroke L2 of the press rod 33, the movable frame 4 equipped with the printing unit 3 etc. can be further lowered to perform printing work, etc., similarly to the conventional numbering device. .

The check digit type wheel 7 has numbers "0°1.2,3..
Corresponding to ``9'', in the same direction, the numbers shown in Figure 5 are ``9''.
0, 3, 6, 9. They are grafted in the order of '2, 5, 8, 1, 4°7'.

This number has a modulus of 10 and a weight of “L3+7+
-1, it is calculated corresponding to the code number, and can be made to correspond to all code numbers by circulating or skipping part or all of it as necessary.

Here, the positions and depths of the cut grooves 19A, 19B, 19C, . . . formed in the encode plate 18 will be explained.

The cut grooves 19A, 19B, . . . determine the amount of rotation of the check agent type wheel 7, and are formed so that their positions and cut lengths correspond to the singular points described above.

Now, assuming that the printing unit 3 continuously changes only the first digit and "9" is not displayed yet, the amount of rotation of the feed claw mechanism 10 relative to the center axis of the horizontal rod 8 is The amount of rotation is limited by the contact between the bottom of the pawl teeth of the locking ratchet 1 and the pawl portion 10A (for example, it rotates intermittently by 3C).

Next, the numerical value of the code number punched out increases,
For example, the digit shift is from ``9'' to ``10''.
At a singular point such as from "...99" to "...100", the feed pawl mechanism 10 is inserted into the deep girder groove formed in the feed pawl locking ratchet 1 (see FIG. 2). claw part 10
A. Since the IOB decreases sequentially, the relative rotation amount of the feed claw mechanism 10 increases as the carry progresses to a higher number.

The amount of rotation of this feed claw mechanism 10 is determined by the rotation amount of the holo movement amount transmission mechanism 16.
It is expressed as the amount of rotation of the encode plate 18 in the direction of the arrow.

Therefore, the cut grooves 19A and 19B of the encode plate 18
... is specified as a position corresponding to the relative rotation amount of the feed claw mechanism 10, and the depth thereof is determined by the cut groove 19.
A indicates the minimum value, the kerf 19B and 19D are approximately 3 times the kerf 19A, and the kerf 19C is approximately 4 times the kerf 19A.
The kerf 19E is approximately six times larger than the kerf 19A.

On the other hand, these kerf grooves 19A. 19B... stores the rotation degree of the check digit type wheel 7 in advance, and regulates the amount of rotation of the feeler mechanism 21, so that the check digit type book 7 is rotated 36 times at the groove 19A.
Rotate the grooves 19B and 19D by 3 degrees.
6° x 3 = 108°, kerf 19C is 36° x 4
= 144°, 36° for kerf 19E x 6 = 216°
It has the function of rotating each check digit type wheel 7 by the same amount.

The movable frame 4 is housed in a base frame 34 in the same way as a normal numbering device, and is configured to be able to move up and down by being restrained by the base frame 34 together with a pressing rod 33.

In addition, the inking mechanism (not shown) is the same as that of the conventional numbering device, and furthermore, the inking mechanism (not shown) is the same as that of the conventional numbering device. The basic mechanisms provided in the device are also provided in the above embodiments as they are.

Next, the overall operation of the above embodiment will be explained.

First, the numbers on each type book 2 and check digit type wheel 7 of the printing unit 3 are set to "0".

Next, when the printing operation starts and the press rod 33 is pressed down by an external force and lowered, the feeler mechanism 21 is activated and the fulcrum 22
The filler arm 23 is rotated around , and the filler pin 25 is slightly separated from the peripheral end of the encode plate 18.

At this time, the distance between the feeler pin 25 and the support shaft 5 increases slightly, and the flexible wire 31 rotates the winding pulley 29 by approximately 36 degrees in the direction of arrow E, thereby causing the drive pawl locking plate to rotate by approximately 36 degrees. 28 and the drive pawl 27 are rotated approximately 36 degrees in the same direction.

Therefore, the drive pawl 27 is connected to the pawl tooth 26 of the ratchet gear 26.
Slide A one space and stop.

During this time, the inking mechanism (not shown) is separated from the type characters 2 and 7, and the rotation of the ratchet gear 26 is stopped by the check pawl 32.

When the press rod 33 is further pressed, the moving frame 4 is further lowered, causing the printing unit 3 and the check digit type ring 7 to collide with the paper surface, etc., thereby first confirming that the code number and check digit are all "0". It will be printed.

In response to this lowering movement (operating distance L2) of the movable frame 4, the horizontal rod 8 moves to the support shaft 5 similarly to the known numbering device.
The claw portion 10A of the feed claw mechanism 10 rotates by a predetermined amount around the
10B... is moved to the ejection position of the next consecutive code number.

Next, when the external force is released from the pressing rod 33, the pressing rod 3
3 and the moving frame 4 rise and return to their original positions.

During this time, each component performs the following operations.

First, the claw portion 10A of the feeding claw mechanism 10 is connected to the printing unit 3.
The pawl locking ratchet 1 fixed to the type book 2 in the first place is locked and returned to the original position together with the horizontal rod 8.

This operation is similar to a normal numbering device.

As a result, the type book 2 in the first place is rotated approximately 36 degrees in the direction of the arrow Z1, and the code number r0000001 printed before the movement frame 4 is raised is followed by the code number r0000001.
The state is set to launch oojl.

After this operation is completed, when the pressing rod 33 is further raised, the movable frame 4 is held on the base frame 34 by the frame locking function of the stopper, thereby restraining the vertical movement of the movable frame 4, and then Since the detachment control member is detached from the moving frame, the screw spring 30 is immediately removed.
operates and winds up the flexible wire 31 and pulley 2
9, thereby drawing the filler pin 25 of the feeler mechanism 21 into the cut groove 19A of the encode plate 18 shown in FIG.

Through this series of operations, the drive pawl locking plate 28 fixed to the take-up pulley 29 and the drive pawl 27 engage with the ratchet gear 26.
is locked, and the ratchet gear 26 is rotated by an amount of rotation corresponding to the depth of the cut groove 19A of the encode plate 18, that is, approximately 36° in the direction opposite to the arrow E.

As a result, the check digit type wheel 7 rotates 1/10 of a turn, or 36 degrees, in the direction of arrow Z2, and the load number "
The check digit "3" corresponding to "000001" is set, one operation step of the above embodiment is completed, and the first digit of the code number is changed to, for example, l-000009.
Similar operations are repeated until J is hit.

Following the above operation, when the press rod 33 is pressed down and the code number ``000009'' is printed, for example, the check digit ``7'' is printed at the same time by the above series of operations.

During this operation, the pawl portion 10A of the feed pawl mechanism 10 falls into a groove (not shown) formed in the first digit pawl locking gear 1 of the printing unit 3, similar to a known numbering device.

At this time, the pawl portion 10B is meshed with the pawl locking gear 1 of the 10th digit, and preparation for carrying up is completed.

Then, when the pressing rod 33 is released from the external force, the moving frame 4 rises and the feed pawl mechanism 10 locks the pawl locking gears 1 at the 1st and 10th positions, thereby simultaneously moving the type wheels 2 at the 1st and 10th positions to 36.
° rotation, which prepares the next digit for the 10th place.

On the other hand, as the pawl portion 10A of the feed pawl mechanism 10 falls into the groove of the pawl locking ratchet 1, the feed pawl mechanism 10 rotates slightly with respect to the central axis of the horizontal rod 8.

The amount of rotation of the horizontal rod 8 is enlarged and transmitted to the encode plate 18 via the holo-movement amount transmission mechanism 16, and the encode plate 18 is rotated to some extent, so that the feeler mechanism 21
P of the filler pin 25 at the circumferential edge of the encode plate 18
place it at a point.

This state occurs when the separation control member and the movable frame 4 are integrally raised to a predetermined position within the base frame 34 after the printing operation is completed.

In this case, even if the movable frame 4 rises and returns to its original position, and then the press rod 33 and the detachment control member further rise and the feeler arm actuating section 23A is released from the pressing force of the press rod 33, the encoder is not activated. Since no cut groove is formed at point P of the plate 18, the distance between the filler pin 25 and the support shaft 5 does not change.

Therefore, the flexible wire 31 is not wound around the winding pulley 29, and therefore the drive mechanism 20 does not operate.

As a result, the circulation of the check digit type wheel 7 in FIG. 5 is stopped in order to maintain the state before the carry, and by the carry, the code number is changed from ``000009'' to ``0''.
Even if the check digit is changed to ``00010'' and printing is performed, the same number ``7'' will be printed out for each check digit.

Thereafter, the same operation is repeated every time the first digit of the code number is carried up to the tenth digit, regardless of the magnitude of the code number value.

Next, when the movable frame 4 enters the return process after the printing unit 3 prints out the code number "...99", the feed claw mechanism 10 moves the 1st, 10th, and It engages with the pawl locking ratchet 1 of each type wheel 2 at the -00 position and rotates 36 degrees at the same time to change the number at the 100 position.

In this case, the claw portion 10A that urges the 1st and 10th position wheels
.

10B falls into the groove of each pawl locking ratchet 1.

Therefore, the rotation angle of the feed pawl mechanism 10 with respect to the central axis of the horizontal rod 8 becomes relatively large, causing the encode plays 1 to 18 to rotate via the holo-movement transmission mechanism 16, thereby causing the filler pin 25 to rotate relatively. It is guided to the open end of the cut groove 19B.

Then, the moving frame 4 returns to its original position and the pressing rod 33
When the feeler mechanism 21 is released from the pressing force of
9B, thereby rotating the check digit type ring 7 by an amount of rotation corresponding to the depth of the cut groove 19B, that is, approximately 108 degrees, via the drive pawl locking plate 28, the drive pawl 27, and the ratchet gear 26, respectively. and stop.

Therefore, for example, if the check digit type wheel 7 displays "0" when the code number is "...99",
For the next code number "...100", two cycles in Figure 5 are skipped and the third check digit is "9".
is set.

When the press rod 33 is pressed to lower the movable frame 4, the printing unit 3 and the check digit type wheel 7 move forward until they collide with the paper surface, etc. The code number and check digit set in the final step of the process are held as they are, but on the other hand, the feeler mechanism 21 is first rotated by the pressing force of the pressing rod 33, and the filler pin 2 is rotated.
5 to the open end of the cut groove 19B of the encode plate 18, and at the same time, the flexible wire 31 is stretched against the torsion spring 30, and the drive claw locking plate 28 is moved in the direction of the arrow E via the winding pulley 29. Rotate.

As a result, the drive pawl 27 is rotated 108 degrees around the outer periphery of the ratchet gear 26 in the direction of arrow G, and returned to its original position.

During this time, the rotation of the ratchet gear 26 is stopped by the check pawl 32, and the ratchet gear 26 is kept rotated by 108 degrees.

Then, the code number carried to the 100th place and the check digit corresponding to the code number are issued, and then the moving frame 4 enters the return process and then "...101
”, use the feed claw mechanism 1 in the same way as described above.
Claw lock of type wheel with 0 in first place.

The machine ratchet 1 is locked and preparations are made to punch out the next consecutive number after the 1st place.

In this case, the claws 10A and 10B of the feed claw mechanism 10 escape from the groove of the feed claw locking gear 1 and only the claw 10A engages, so that the direction of rotation of the feed claw mechanism 10 with respect to the pole shaft fulcrum is in the direction of arrow H. This is transmitted to the encode plate 18 via the holo-movement transmission mechanism 16, and the encode plate 18 is rotated in the direction of arrow J.
5 is relatively set in the cut groove 19A portion of the encode plate 18.

Below, until the code number becomes "...999", it is the same as the above-mentioned change in the 1st digit, carry from 1st to 10th, and carry from 10th to 100th. The action is repeated.

Furthermore, the code number may change from "...999" to "・
...10001, and from [...9999J, "...
...When carried to 100OOOJ, etc., the amount of rotation of the feed claw mechanism 10 relative to each pole shaft fulcrum 8A increases sequentially, and the amount of rotation is encoded as a rotation amount storage mechanism via the holo movement amount transmission mechanism 16. The signal is transmitted to the plate 18, causing the encode plate 18 to rotate.

Then, the amount of rotation of the check digit type wheel 7 is specified by the cut grooves 19C, 19D, and 19E for specifying check digits used for carry, the filler mechanism 21, and the drive mechanism 20, and the amount of rotation of the check digit type wheel 7 is specified by this. In the direction of circulation shown in FIG. 5, the necessary check digits are selected by skipping over the necessary number of check digits, and are successively printed together with the code number.

During this period, for continuous changes in the first digit of the code number,
According to the kerf 19A stored in the encode plate 18, the check digit type wheel 7 is set to <3 as described above.
It changes by 6 degrees, as shown in FIG. 5; it operates to sequentially print out check digits corresponding to the code number according to the cycle.

As described above, according to the present invention, the amount of change in the rotation angle that occurs when the automatic feed claw mechanism of a normal numbering device falls into the claw locking ratchet attached to a normal printing unit is detected, and the amount of change in the rotation angle is detected. Configuration 1 in which information relating to a predetermined rotation amount of the check digit type wheel is selected from a rotation amount storage mechanism calculated and stored in advance based on the size, and drive control of the check digit type wheel is performed based on the selected information. Therefore, by calculating the check digit of the code number based on arbitrary weight and modulus in advance and storing it in the rotation amount storage mechanism, which was previously considered difficult, it is very easy to identify and set the code number at the same time. Therefore, if a rotation amount control unit configured based on this method is installed in a conventional numbering device together with a check digit type wheel as described above, consecutive code numbers can be generated simply by pressing the press rod. and the corresponding check digit at the same time, and the rotation of the check digit type wheel is controlled by the change in rotation of the automatic feed pawl mechanism that rotates with the rotation of the printing unit. , No check digit is set unless a code number is set in any case.2 This is an excellent check digit that has never existed before, ensuring reliable operation in that the check digit is always specified along with the code number. A method and apparatus for controlling the rotation of a type wheel can be provided.

In the above embodiment, the case where the weight is set to 1, 3, or 7 with a modulus of 10 is particularly illustrated, but the present invention is not necessarily limited to this. Specify the weight arbitrarily, or calculate the check digit for each code number in advance in runes check, seven check, etc., and calculate the repeating number of the check digit and its direction, as well as the amount of jump of the repeating number at the singular point, etc. The present invention can be applied as is by specifying the depth of the cut grooves 19A, 19B, etc. of the encode plate 18 and adjusting the numbers embedded in the check digit type ring 7, respectively.

Further, the holo movement transmission mechanism 16 and the rotation amount setting mechanism 17 that constitute a part of the present invention are not limited to those disclosed in the above embodiments. For example, in the holo movement transmission mechanism 16, the feed pawl mechanism 10 is The amount of rotation may be detected using an electrical method or an optical method, converted into an electric signal, amplified, and after A-D conversion, the step motor may be operated, thereby energizing the amount of rotation setting mechanism 17. .

Further, the rotation amount setting mechanism 17 may be constructed of other structural members as long as they have substantially the same functions as those of the above embodiment.

[Brief explanation of drawings]

FIG. 1 is an enlarged perspective view showing an embodiment of a check digit type wheel rotation control method and apparatus according to the present invention, FIG. 2 is a front view showing a printing unit portion forming a part of FIG. 3 is a front view showing the base frame housing each component shown in FIG. 1 and an operation press, and FIG. 4 is a left side view in FIG. , FIG. 5 is an explanatory diagram showing an example of the numbers embedded in the check digit type wheel constituting a part of FIG. 1 and the order in which they are printed. 1... Ratchet for pawl locking, 3... Printing unit,
7-Check digit type wheel, 10... Automatic feed feed pawl mechanism, 17... Rotation amount setting mechanism, 18... Encoding plate as rotation amount storage mechanism, 33...
Pressing rod as a suppressing member.

Claims (1)

[Scope of Claims] 1. An automatic feed pawl mechanism that is biased by the pressing operation of a pressing member and rotates back and forth, and a pawl locking ratchet attached to each character ring that is engaged with the automatic feed pawl mechanism. a numbering device having a printing unit with a rotatable check digit type wheel coaxially with the printing unit of the numbering device; The rotation angle of the automatic feed pawl mechanism is detected, and then, based on the magnitude of the detected rotation angle change, a predetermined rotation amount of the check book type wheel is set from a rotation amount storage mechanism calculated and stored in advance. A method for controlling the rotation of a check digit type wheel, comprising selecting such information and controlling the drive of the check digit type wheel based on the selected information. 2. An automatic feed pawl mechanism that rotates back and forth when urged by the suppressing action of a pressing member, and a printing unit that has a pawl locking ratchet attached to each character ring that is engaged with the automatic feed pawl mechanism. In the numbering device equipped with the above-mentioned numbering device, a check digit type wheel is rotatably installed coaxially with the printed T-knit of the numbering device, and the check digit type is provided between the check digit type wheel and the automatic feed pawl mechanism. Equipped with a rotation amount control section for controlling the amount of rotation of the wheel, the rotation amount control section is combined with a rotation amount storage mechanism that pre-calculates and stores the rotation amount of the check digit type wheel corresponding to the serial number of the printing unit. , detecting a change in the rotation angle of the automatic feed pawl mechanism that occurs when the automatic feed pawl mechanism falls into the pawl locking ratchet, and also detecting a change in rotation angle in advance from the rotation amount storage mechanism based on the magnitude of the detected amount of change in the rotation angle. 1. A rotation control device for a check digit type wheel, comprising a rotation amount setting mechanism for selecting and setting a specified predetermined rotation amount.