JPS5849197B2 - Check digit type wheel drive control method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a drive control method and device for a check digit type wheel, and particularly to a check digit type wheel drive control method and apparatus for controlling the drive of a check digit type wheel. The present invention relates to a drive control method for a check digit type wheel in a numbering device with a digit and its device.

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

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:
Examples include a Luhn's check, a Modulus 10, a Modulus 11, a Nine's check, etc., which have various specified weights.

On the other hand, check digits do not necessarily change continuously for each consecutive code number, except for nines checks and the like in which specific digits simply cycle.

Therefore, conventionally, it has been difficult to obtain a numbering device with check digits that can print out check digits simultaneously and consecutively for consecutive code numbers.
In particular, the problem was considered to be technically difficult due to the difficulty in selecting the check digit and controlling the drive of the check digit type wheel at its singular point, and was left unsolved.

For this reason, when calculating and printing check digits performed at the administrative stage, conventionally, for each printed code number, addition, subtraction, multiplication, and division are performed according to a predetermined calculation method based on a predetermined modulus and weight, and the check digit is The method used was to calculate the amount and then add it.

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-mentioned matters, an object of the present invention is to provide a code number printed by a numbering device and a check digit that inseparably corresponds to the code number and circulates irregularly.
It is an object of the present invention to provide a drive control method for a check digit type wheel in a numbering device with check digits, which enables simultaneous and continuous printing by pressing a press rod, etc., and a device thereof.

The present invention provides a print having an automatic feed pawl mechanism that rotates back and forth when urged by the pressing operation of a pressing member, and a pawl locking ratchet attached to each character ring that is engaged with the automatic feed pawl mechanism. A numbering device is provided, and a check digit type wheel is rotatably equipped coaxially with the printing unit of the numbering device, and simply rotates in synchronization with the printing unit to print the serial number of the printing unit. When setting a check digit corresponding to this, the check digit type wheel is rotated and driven using the pressing operation of the suppressing member, and the corresponding check digit is set at the singular point when the printing unit carries up. When setting the serial number of the printing unit and the corresponding check digit, a configuration is adopted in which the check digit type wheel is driven and controlled by another separately equipped drive mechanism, thereby achieving the above purpose. That is.

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, for each code number K (where K = 0-n, where n is a natural number), for example, if we set the check digit as a modulus of 10 and set the weights as 1, 3, and 7 and calculate it sequentially, we will calculate The number (check digit) is
1-0, 3, 6 as shown in Figure 5, including a certain singularity.
, 9, 2, 5, 8, 1, 4, 7J numbers were found to be rotated.

At the same time, if the number representing the check digit is calculated by adding, subtracting, multiplying and dividing using the modulus 10 method, then "0
'', then 1 digit, 2 digits, etc. If the last digit of a code number is ``9'' and is then carried forward, or if the last 2 digits are ``・99'', the last 3 digits are ``999'', the last 4 digits are ``9 9 9 9''
J, the last 5 digits are "...9 9 9 9 9 J, etc.", and when carried to each position, a singularity occurs, and it is clear that the content of each singularity is different. Ta.

In other words, the code number changes from "...9" to "...
・When moving from 1st to 10th place, such as from IOJ or "...89" to "...90J,""...9"
and "...10" or "...89" and "...90"
” displays the same check digit (in other words, in this case, the circulation in FIG. 5 stops once and displays the same number).

Next, when the code number is carried over from "...99" to the next 100th digit, the carried digit O check digit is changed from the check digit digit "...99". Along the cycle of FIG. 5, the number is skipped by two and the third digit (for example, if the check digit of "...099" is rOJ, the check digit of 1-100J is "9").

Furthermore, when the code number "...999" is carried up to the next digit, the check digit of the carried code number will be 3 digits higher than the check digit of "...999" and will be 4 digits. number (for example, if the check digit of "...999" is "1", then "...1 0 0 0")
The check value of J is "3").

Also, when the code number "...9 9 9 9J" is carried to the next digit, the check digit of the carried code number is 2 digits from the check digit of "...9 9 9 9J". Jump to the third number (for example, ``...''
・If the check digit of 9 9 9 9J is ``8'', then the check digit of ``...I 0 0 0 0 0J'' is ``7'').

When the code number "...9 9 9 9 9J" is carried to the next digit, the check digit of the carried code number is 5 digits higher than the check digit of "...99999J". The sixth number (for example, “・
・・9 9 9 9 9J check digit is “1”
”, the check digit of 10 0 0 0 0J is “9”).

In the same way, the code number increases and consecutive "
When the number "9" is punched out, at each singular point, a predetermined number of repeating numbers shown in FIG. became.

Next, a specific example according to the present invention that utilizes the properties of the above-mentioned check status will be explained.

In FIGS. 1 to 4, pawl locking ratchets 1,
A printing unit 3 having a required number of type wheels 2, 2, . . . each having a number 1, .

The spindle 5 is located 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 1 is rotatably mounted on the support shaft 5 adjacent to the other side of the printing unit 3.

Horizontal rods 8A and 8B are provided substantially parallel to the support shaft 5.

Both ends of these horizontal rods 8A, 8B are connected to the pole arms 9,
9 is rotatably supported.

One end of the pole arms 9 is rotatably supported by the support shaft 5, and the other end is rotatably connected to a pole rotation arm (not shown) in conventional numbering.

As a result, the horizontal rods 8A, 8B are connected to the pole arms 9,
9 and biased by the pole rotation arm;
It is designed to be able to rotate around the support shaft 5 while maintaining a constant interval.

A feed pawl mechanism 10 having a rebeat number setting pawl 6A is fixed and equipped on the horizontal rod 8A.

Each claw part 10A, IOB... of this feed claw mechanism 10 is
Each pawl tooth portion 1A, IB of the feed pawl locking gear 1, 1...
... (see Fig. 2), and are individually engaged by springs or the like so as to be able to press and engage freely.

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

For example, if pawl 10A falls into this deep carry groove, pawl 1
0B meshes with the corresponding type wheel, and the type wheels 2, 2 corresponding to the pawls 10A, 10B are simultaneously rotated and carried up by one digit, and furthermore, the pawls 10A, 1 are placed in the deep grooves for carry up.
When each 0B falls at the same time, the third digit type car 2
is locked to the pawl 10C and rotates, and as the digits are moved to higher digits, the rotation angle of the entire feed pawl mechanism 10 relative to the pole shaft fulcrum 9A gradually increases, just as in conventional numbering. It is formed like this.

The feed claw mechanism 10 and the checketage type wheel T
A synchronous drive mechanism 11 as a first drive mechanism for synchronizing the check digit type wheel 7 with the intermittent rotation of the printing unit 3, and a synchronous drive mechanism 11 as a first drive mechanism for synchronizing the check digit type wheel 7 with the intermittent rotation of the printing unit 3, A synchronous release mechanism 12 for separating from the type wheel 7 is interposed.

The synchronization and drive mechanism 11 includes a ratchet gear 13 fixed to the check digit type wheel 7 and having ten pawl teeth, and a check digit type whose pawl at one end is engaged with the ratchet gear 13. Feeding pole (hereinafter referred to as
(simply referred to as a "CD ball") 14; a spring 15 which is interposed between this CD pole 14 and the feed claw mechanism 10 and transmits the reciprocating rotational force of the feed claw mechanism 10 to the CD ball 14; A CD ball stopper 16 is also included.

To explain this in more detail, the central portion of the CD feed ball 14 is rotatably mounted on the horizontal rod 8A.

One end of a tension spring 15 is fixed to the claw side of the CD pole 14, and the other end of the tension spring 15 is fixed to the feed claw mechanism 10 and to the check digit type wheel 7 side. It is fixed to an extended CD ball stopper 16.

As a result, when the feed pawl mechanism 10 rotates by a predetermined angle with respect to the pawl fulcrum 9A, the CD pawl 14 is urged by the tension spring 15 and pressed against the ratchet gear 13, so that it is integrated with the feed pawl mechanism 10. The CD pawl 14 rotates, and the check digit type wheel 7 together with the ratchet gear 13 rotates intermittently substantially in synchronization with the printing unit 3.

The synchronization release mechanism 12 is configured to release the synchronization drive mechanism 11 when the feed pawl mechanism 10 falls sequentially from the lowest position of the carry deep grooves formed in the pawl locking ratchets 1, 1, . . . A pinion 17 having the function of separating the check digit type wheel 7 from the check digit type wheel 7 and having its central axis fixed to the horizontal rod 8A, and a pinion 17 that is engaged with the pinion 17 and rotatably mounted on the horizontal rod 8B. It is composed of a small gear 18 and a control pin 19 which is installed in the small gear 18 and has the function of rotating the CD feed pole 14 against the tension spring 15.

In the case where only the first character wheel 2 of the printing unit 3 is rotated intermittently, and in the case where it is locked in the deep groove during carrying,
Since the amount of rotation of the feed claw mechanism 10 is different, in this receiving example, the amount of rotation of the feed claw mechanism 10 is different.
In order to prevent the operation of the CD pole 14, a certain distance is normally provided between the control pin 19 and the CD pole 14.

A second drive mechanism 21 is connected to the check digit type wheel 7 by a check digit type wheel coupling shaft (hereinafter referred to as 20 (simply referred to as "CD vehicle coupling shaft").

Both the CD wheel coupling shaft 20 and the second drive mechanism 21 are rotatably mounted on the support shaft 5.

The second drive mechanism 21 may be driven by a step motor or the like after converting the amount of rotation of the feed claw mechanism 10 into an amount of electricity. The drive mechanism 11 and the synchronization release mechanism 12 can be replaced by a simple electric circuit), but in this embodiment, the structure is as follows.

That is, one end of a drive torsion spring 22 is fixed to the left end of the CD wheel coupling shaft 20 in FIG. 1, and a cam wheel 23 is locked to the other end of the drive torsion spring 22.

This cam wheel 23 is connected via a torque setting spring 24 to a ratchet wheel 25 serving as a torque limiter for removing overtorque.

A stopper pin 26 is provided on the cam mechanism 23 side of the ratchet wheel 25.
is installed, and the ratchet wheel 25 is inserted into the cam mechanism 23 as necessary.
It can be locked to.

A pawl 27 is engaged with the ratchet wheel 25.

This pawl 27 is pivotally supported by the peripheral end of a gear 28 and is meshed with the pawl 25 against the rotational force of the driving torsion spring 22 .

The ratchet wheel 25, gear 28, and cam mechanism 23 are all rotatably mounted on the support shaft 5, as described above.

The second drive mechanism 21 configured in this manner is further connected to the following constituent members.

That is, the gear 28 includes idle gears 29 and 30.
It is meshed with the drive gear 31 via.

This driving gear 31 is meshed with a driven gear 39 fixed to a preset cam group 36 as a storage mechanism, which will be described later.

The idle gear 29 is pivotally supported by the movable frame 4, and the idle gear 30 is fixed to a gear support shaft 32 rotatably supported by the movable frame 4.

The idle gear 30 is integrated with a drive gear 31,
The output of the drive torsion spring 22 can be immediately transmitted to the drive gear 31.

Furthermore, the driving torsion spring 22 is configured to
The CD pole 14 is biased to 0 and the ratchet gear 13
When the ratchet gear 13 is intermittently rotated, the CD wheel is intermittently wound up through the coupling shaft 20,
This allows a predetermined amount of drive energy to be accumulated.

If it is caught more than necessary, the cam wheel 23 and the driving torsion spring 22 rotate in the same direction against the torque setting spring 24, and the pawl 27 and ratchet wheel 25 are released from the locked state.

At this time, the ratchet wheel 25 rotates in the same direction due to the reaction force of the torque setting spring 24, and the stopper pin 2 implanted in the ratchet wheel 25 rotates in the same direction.
6 is locked to the cam mechanism 23, and at that point the ratchet wheel 25
The rotation of the drive torsion spring 2 is thereby stopped.
The excess drive energy stored in the drive unit 2 is dissipated to the outside.

During this time, the gear 28 and the drive gear 31 are maintained in a stopped state by a stopper mechanism 41 engaged with a preset cam group 36, which will be described later.

As described above, in the feed claw mechanism 10, the magnitude of change in rotation angle of the feed claw mechanism 10 with respect to the pole fulcrum 9A is detected, and based on the detected amount of change in rotation angle, the first A synchronization disengagement mechanism 12 for disengaging the drive mechanism 11 is provided, and the synchronization disengagement mechanism 12
Selection cams 88A, 88B, .・Selective locking mechanism 35 based on
is equipped with.

Further, between the second drive mechanism 21 and the check digit type wheel 7, a memory is provided which calculates and stores in advance the amount of rotation of the check digit type wheel 7, which is rotated by the second drive mechanism 21. A preset cam group 36 as a mechanism,
Each of them is equipped with a start control mechanism 34 that determines the start time of the second drive mechanism 21 and at the same time releases the stopped state.

In this embodiment, the activation control mechanism 34, the preset cam group, and the selective locking mechanism 35 provide the following functions:
A rotational drive control section 33 is configured to smoothly control the rotation of the check digit type wheel 7 at the singular point of the check digit.

The rotational drive control section 33 further includes a ratchet locking section 40 that integrally locks the CD coupling shaft 20 driven by the second drive mechanism 21 and the preset cam group 36 in the rotational direction thereof. Equipped with

The preset cam group 36 consists of six disc-shaped preset cams 36A, 36B, etc., assuming that the automatic carry is 6 digits, and each of the cams 36A, 36B... has a claw as shown in FIG. It has one claw-shaped locking tooth T1, and is integrally fixed to each other by screws or the like while retaining the freedom to set the position of the claw-like locking tooth T1.

Each disc-shaped preset cam 3 of this preset cam group 36
6A, 36B..., and the locking tooth Tl is provided at one end.
A claw rod 37 equipped with a locking claw T3 that can be locked as necessary.
Six A, 37B... are equipped.

The claw rods 37A, 37B, . . . each have a downwardly protruding guide claw portion T4 in the center, and the other end is rotatably mounted on the horizontal rod 8B.

Is the locking claw T3 side of each of the claw rods 37A, 37B? The preset cam group 36 is pressed against the preset cam group 36 without contacting the preset cam group, and if necessary, any one of the pawls, for example 37A, is pressed against the selection cam 38A. is selected so that it can come into contact with the corresponding preset cam 36A.

The selection cams 38A, 38B... are disc-shaped cams, and six selection cams are provided corresponding to the claw rods 37A, 37B....

These cams 38A, 38B... have the claw rod 3 at the peripheral end.
7A, 38B... each has a guide groove t1 for engaging the guide claw part T4, and each guide groove t1 is connected to the horizontal rod 8A.
The claw rods 37A, 37B...
It is fixed to the horizontal rod 8A so as to be able to sequentially engage the guide claws T3.

That is, due to the rotation angle of the feed claw mechanism 10 that occurs when the feed claw mechanism 10 performs a carry of the tenth place, the guide claw portion T4 of the claw rod 37A is engaged with the guide groove t of the selection cam 38A. The selection cam 38A is fixed to the horizontal rod 8A so that the locking pawl T3 at the tip of the pawl rod 37A comes into contact with the preset cam 36A.

Similarly, when moving up to the 100th place, select cam 38
The guide grooves t1 of the selection cams 38A, 38B, etc. engage the horizontal rod 8.
They are set to be sequentially shifted somewhat according to the rotation angle of A.

As a result, the selection cams 38A, 38B, etc. are selected depending on the rotation angle of the feed claw mechanism 10 with respect to the pole fulcrum 9A.
・One of the pawl rods 37A, 37B... selected as one of the preset cams 36A, 36B...
The brisset cams 36A, 3
The brisset cam group 36 is urged by the drive source 21 and rotated from a preset position at 6B... until the locking teeth T1 are locked to the pawl rods 37A, 37B... , the rotation angle of the check digit type wheel 7 can be controlled.

In addition to the functions described above, the driven gear 39 and the ratchet locking portion 40, which are integrally provided in the preset cam group 36, both transfer the rotational force in the same direction from the second drive mechanism 21 to the preset cam. It has a function of transmitting information to the group 36, thereby making it possible to quickly control the rotation angle of the check digit type wheel 7.

The ratchet locking part 40 is fixed on the CD coupling shaft 20, and has a ratchet gear 40A having 10 pawl teeth.
and a locking pawl 40B that is locked when the ratchet gear 40A rotates clockwise in FIG. .

The activation control section 34 of the rotational drive control mechanism 33 includes a stopper mechanism 41 extending to the ratchet locking section 40;
A check pawl 42 for checking the ratchet gear 13 integrated with the check digit type wheel 7;
It also includes a release cam 43 for releasing the locked state of the stopper mechanism 41, and a detachable cam mechanism 44 interposed between the release cam 43 and the pole arms 9, 9.

The stopper mechanism 41 locks a starting position setting pawl 41A rotatably and coaxially with a locking pawl 40B forming a part of the ratchet locking portion 40, and this pawl 41A at one end. and a fixed locking piece 41B whose other end is fixed to the movable frame 4, and this fixed locking piece 41B.
and a spring 41C that biases the position setting claw 41A in the direction of locking the position setting claw 41A.

The non-return pawl 42 is pivoted on the movable frame 4 and is biased by a spring or the like to mesh with the ratchet gear 13, thereby preventing the ratchet gear 13 and the check tag type wheel 7 from reversing. ing.

A release cam 43 is rotatably mounted on the CD wheel coupling shaft 20 for simultaneously releasing the locking states of the position setting pawl 41A of the stopper mechanism 41 and the check pawl 42.

The attachment/detachment cam mechanism 44 includes a driven locking rod 44B that is implanted in the removal cam 43 and is bent in the rotational direction of the removal cam 43, and locks the locking rod 44B at one end as necessary. Normally, the driving locking rod 44A, whose other end is fixed to the horizontal rod 8B and whose one end has a spring effect along the horizontal rod 8A, is prevented from being locked with the driven locking rod 44B. and a disc that guides the feed pawl mechanism 10 so that it operates only when the feed pawl mechanism 10 rotates significantly with respect to the pole fulcrum 9A during carry-up to lock the driving locking rod 44A to the driven locking rod 44B. a cam 45, one end of which is fixed to the moving frame 4;
has a function of pressing one end of the driving locking rod 44A in the direction of the disc cam 45 just before the printing unit 3 reaches the top dead center as the printing unit 3 rises, thereby releasing the engagement of the locking rods 44A and 44B. A locking rod release member (not shown) and the locking rod 4
and a return spring 46 that immediately returns the release cam 43 to its original position when the engagement between 4A and 44B is released.

The disk cam 45 has a bulge 45 on the drive locking rod 44A side.
A, and on the other hand, the driving locking rod 44A has a disc cam 45.
A slide pin 44C is provided protruding from the side, and when the slide pin 44C is guided to the bulge of the disk cam 45, a state is set in which the driving locking rod 44A is engaged with the driven locking rod 44B. Ru.

For example, check digit printing numbers "o, 3, 6" are printed on the outer peripheral end surface of the check digit printing wheel 7.
, 9, 2, 5, 8, 1, 4, and 7J are successively planted in this order at equal intervals and in the same direction as the rotational direction of the printing unit 3.

This cycle of numbers changes the weights to l-1 . 3, 7j, it is determined according to the code number, and by taking into account the singularity and performing operations such as circulating or jumping over some or all of these as necessary, all It becomes possible to print out the check digit for the code number at the same time as the code number.

In this embodiment, when the code number in the <10 digit changes as described above, the check digits for the code numbers before and after the change indicate the same number.

Therefore, when the pawl rod 37A is locked to the selection cam 38A and the pawl rod 37A comes into contact with the brisset cam 36A, the locking tooth T1 of the preset cam 36A immediately engages the pawl before the brisset cam 36A rotates. The position of the locking tooth T1 of the pawl rod 37A is adjusted and set in advance so that it is locked to the rod 37A.

Similarly, when the code number in the 100's digit changes, the check digit after the change will jump two digits and become the third digit from the check digit before the change in the circulation direction in Figure 5. The preset cam 36B is rotated 7/
The position of the locking teeth T1 of the brisset cam 35B is specified in advance so that the brisset cam 35B is stopped after 10 rotations.

Then, if the code number in the 1000th place changes, turn the brisset cam 36C by 6/10, and if the code number in the 10000th place changes, turn the preset cam 36D.
The corresponding preset cam 36B is adjusted in advance so that the preset cam 36E is rotated by 4/10 when the code number in the 100,000 digit changes.

If there are seven or more preset cams, etc., the position of the stop tooth T1 of each cam of the preset cam group 35 is adjusted in the same manner in accordance with the change in the circulation of the check digit at the singular point calculated in advance. By keeping 1
For all the singular points of code numbers greater than or equal to 0, it is possible to control the amount of rotation of the check date printing wheel 7 of the code number and make it follow the changes.

The movable frame 4 is housed in a base frame 50 like a normal numbering device, and is configured to be able to move up and down by being restrained by the base frame 50 together with a pressing rod 51.

Further, the inking mechanism (not shown) is the same as that of the conventional numbering device, and the operating mechanism (not shown) for the pressing rod 51, the pole arms 9, 9, and the feed claw mechanism 10 is used. ) and other basic mechanisms provided in conventional numbering devices are also provided in the above embodiment as they are.

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

After aligning the characters of the type wheels 2, 2, etc. of the printing unit 3 and the check digit type wheel 7 with rOJ, when the press rod 51 shown in FIG. The unit 3 and the check digit type wheel 7 move down together, and first all the digits are
0” on paper, etc.

In response to the lowering movement of the movable frame 4, the pole arms 9, 9 and the horizontal rods 8A, 8B supported by the pole arms 9, 9 move to the support shaft 5.
relatively rotated approximately 400 to 45 degrees in the direction of A,
The pawl 10A of the feed pawl mechanism 10 and the CD pawl 14 engaged with the pawl 10A move to the ejection position of the next consecutive code number (i.e., one tooth of the pawl locking ratchet 1 and the ratchet gear 13). position).

In this case, the ratchet gear 13 is prevented from reversing by the check pawl 42, and the preset cam group 36 is prevented from reversing by the stopper mechanism 41.
The stopped state is maintained by the locking function of the pole arms 9, and the other components are simply rotated together with the pole arms 9, 9.

Next, when the external force is released from the pressing rod 51, the pressing rod 51
As in the conventional numbering device, the movable frame 4 and the pole arms 9, 9 return to their original positions by the action of a spring (not shown).

During this operation, the ball arms 9, 9 rotate in the direction B in FIG.
A locks and rotates the pawl portion 1A of the pawl locking ratchet 1 shown in FIG.
Rotate 10 times.

At the same time, the CD pawl 14 in conjunction with the feed pawl mechanism 10 drives the ratchet gear 13 by 1/10 rotation, rotates the digit type wheel 7 by 1/10 rotation, and prints the check digit "3" for the code number ro00001J. is set (see Fig. 5), and preparations are made to launch it.

Furthermore, the amount of rotation of the ratchet gear 13 is 1/1
The zero rotation is directly transmitted to the drive torsion spring 22 forming the main part of the second drive mechanism 21 via the CD coupling shaft 20.

As a result, the drive torsion spring 22 is twisted by 1/10 rotation, and a predetermined amount of reverse rotational energy is stored.

Thereafter, the synchronous drive mechanism 11 operates repeatedly until the code number rooooo9J and the corresponding check digit "7" are set and preparation for ejecting is completed, and the above operation is repeated. , the drive torsion spring 22 is twisted by 9/10 turns.

Next, when punching out the code number ro 0 0 0 0 9J and the corresponding check digit "7",
In the printing process, as the pressure of the pressure rod 51 and the like is lowered, each part operates as follows.

First, the claw portion 10A of the feed claw mechanism 10 falls into the deep groove of the claw locking gear 1, and at the same time, the claw portion 10B of the feed claw mechanism 10 falls into the deep groove of the claw locking gear 1.
locks the pawl tooth portion 1B of the pawl locking gear 1 of the type wheel 2 that displays the tens digit, and simultaneously displays the digit type wheel 2 for the tens digit and the type wheel 2 for the ones digit by 1/1. It is set to rotate by 10 rotations.

In this case, since the feed pawl mechanism 10 rotates with respect to the pole fulcrum 9A at a rotation angle that is approximately twice that of the previous rotation angle, the synchronization release mechanism 12 operates as described above to rotate the synchronization drive mechanism 11. It is released from the ratchet gear 13 fixed to the check digit type wheel 7.

Specifically, the small gear 18 is driven by the pinion 17 to rotate, and the CD feed pole 14 is rotated in the direction of arrow C via the control pin 19, thereby causing the CD feed pole 1 to rotate.
4 and the ratchet gear 13 are disengaged.

Furthermore, the amount of rotation of the feed claw mechanism 10 remains the same as that of the horizontal rod 8A.
The disc-shaped selection cam 38A of the rotational drive control mechanism 33
is transmitted to the selection cam 38A to rotate the pawl rod 3γA.
is selected and lowered to bring the locking pawl T3 at the tip of the pawl rod 37A into contact with the preset cam 36A of the preset cam group 36.

In this case, in this embodiment, the locking pawl T3 is set in advance so as to immediately lock the locking teeth T1 provided on the preset cam 36A.

On the other hand, the relatively large amount of rotation of the feed pawl mechanism 10 relative to the pole fulcrum 9A is directly transmitted to the disc cam 45 of the detachable cam mechanism 44, and the disc cam 45 rotates, causing the drive locking rod 44A to protrude. The slide pin 44C is pressed against the bulge 45A by the disc cam 45.

As a result, the driving locking rod 44A is set at a position where its locking claw portion can be locked with the driven locking rod 44B due to its own spring effect.

Then, when the external force is released from the pressing rod 51, the printing unit 3, check digit type wheel 7, etc. rise, and the pole arms 9, 9 rotate relatively in the direction B, as described above. During these operations, each component operates as follows.

First, the feed claw mechanism 10 rotates the 10th and 1st position type wheels 2, 2 by 1/10 rotation, and then prints out the code number "o 0".
Set 0 0 1 0J.

At the same time, the driving locking rod 44A of the attachment/detachment mechanism 44 becomes the driven locking rod 4.
4B and move it together with the ball arms 9 and 9 to
Rotate in the direction.

At this time, the release cam 43 also rotates on the support shaft 5 together with the driven locking rod 44B, energizing the check pawl 42 to disengage the check pawl 42 and the ratchet gear 13, and simultaneously opening the stopper mechanism 41. Remove.

As a result, the rotational drive control mechanism 33 operates under a preset condition, and then the reverse rotational force of the second drive mechanism 21 is applied to the checketage type wheel 7.

On the other hand, in this embodiment, when the 10th digit of the code number changes as described above, the check digits before and after the change are the same digit.

In such a case, the rotational drive control mechanism 33 functions to stop the rotation of the check digitization type wheel as described above.

To explain in more detail the operation status of each part during this time, in this embodiment, the locking pawl T3 of the pawl rod 37A and the locking tooth T1 of the preset cam 36A must be locked immediately after operation as described above. It is preset so that the tooth flank spacing immediately after activation is extremely close.

Then, the pole arm 9
, 9 in the B direction, the attachment/detachment mechanism 44 also rotates in the B direction, and the position setting pawl 41A of the stopper mechanism 41 and the fixed locking piece 41B are disengaged, and the check pawl 42 and the ratchet gear are disengaged. Disengage from 13.

At the next moment, the reverse rotational force of the second drive mechanism 21 is applied to the ratchet gear 13, but at this time, the rotational drive control mechanism 33 is already in operation, and the locking pawl T3 of the pawl rod 37A and the preset cam 36A are Since the locking tooth T1 is completely engaged, the rotation of the CD wheel coupling shaft 20, that is, the rotation of the ratchet gear 13 and the check digit type wheel 7 is stopped.

After such an operation is performed, when the pole arms 9, 9 further rotate in the direction B and the printing unit 3 approaches the top dead center, the driving end rod 44A of the attachment/detachment mechanism 44 closes the movable frame 4 as described above. The engagement with the driven locking rod 44B is released because it is pressed by a locking rod release member (not shown) provided in the locking rod 44B.

At the next moment, the return spring 46 operates to return the release cam 43 to its original position.

During this time, the stopper mechanism 4.

The position setting pawl 41A of No. 1 and the fixed locking piece 41B are on the verge of engagement, and the check pawl 42 is in contact with the tooth surface of the ratchet gear 13, but is not yet fully engaged. It becomes.

Thereafter, when the pole arms 9, 9 further rotate in the direction B, the position setting pawl 41A and the fixed locking piece 41B engage, the stopper mechanism 41 works, and at the same time the non-return pawl 42
is meshed with the ratchet gear 13.

After these series of operations are performed, the pole arms 9, 9 further rotate slightly in the direction B, and the printing unit 3 reaches the top dead center.

Next, lower the pressing rod 51 and read the code number ro O O.
When a printing operation is performed to print out 01 0J and the check mark "7" at the same time, each part operates as follows during the downward movement of the press rod 51.

First, in the same way as when the press rod 51 is lowered, the printing unit 3 descends in the state set before lowering and collides with the paper surface or the like.

On the other hand, the check digit type wheel 7 also descends in the same state as before descending and collides with the paper surface, etc.
During this time, the end of the pawl rod 37A on the side rod 8B is pressed by a bulge (not shown) provided on the movable frame 4 and rotates in the direction E in FIG. 4, and is forced by the selection cam 38A. It is removed from the target and also separated from the preset cam 36A,
Selection cams 38A, 38 at the next singular point (at the time of carry)
Preparations are made for the selection operation of A....

Also, when the printing unit 3 is lowered, the ball arm 9
, 9 relative to each other in the direction A in FIG. Preparations are made to escape and again print out the number "1" on the first place type wheel 2, and at the same time, the lock with the 10th place type wheel 2 is released.

As a result, the numeric value displayed on the 10th place character wheel 2 is retained as it is.

Then, since the feed claw mechanism 10 largely rotates in the D direction with respect to the ball fulcrum 9A and rotates together with the pole arms 9, 9, the code number rooooo
The same condition as when preparations were made to launch the IJ is reproduced.

At the same time, the amount of rotation of the feed pawl mechanism 10 is transmitted to the control pin 19 via the pinion 17 and the small gear 18, and the control pin 19 is separated from the CD pawl 14, so that the CD pawl 14 is connected to the ratchet gear 13. is engaged with.

In this case, since the CD pawl 14 rotates on the ratchet gear 13 integrally with the feed pawl mechanism 10, the CD pawl 14
Pole 14 also has a check digit type ring 7 of 1/10.
In preparation for rotation, it moves by one tooth on the ratchet gear 13 and meshes with the ratchet gear 13.

Due to these series of operations, the driving torsion spring 22 becomes 9/1
0 times of twist and 10 times of the printing unit 3.
The digit type wheel 2 rotates 1/10th of a turn and remains in that state, and the check digit type wheel 7 cycles or stops in accordance with the cycle shown in FIG. 5 to prepare for printing out the next cyclic digit. , first, code number ro0000
After issuing 0J and check digit rOJ, next enter code number ro00001J and check digit "3".
The exact same situation as when preparations were made to launch "" is reproduced.

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.

During this time, the drive torsion spring 22 of the second drive mechanism 21 is always subjected to torsional rotation in the same direction by the CD wheel coupling shaft 20.

However, when a certain amount of torsional energy is accumulated, the second drive source mechanism 21 operates to dissipate the remaining power by removing the claw 27 and dissipating the remaining force to the outside, thereby causing the drive torsion to dissipate. 22 are protected.

Next, the printing unit 3 prints the code number "...99.1".
After launching the pole arms 9, 9, the pushing rod 51 and the movable frame 4 are raised as described above.
rotates in direction B.

At this time, the feed pawl mechanism 10 meshes with the pawl locking ratchets 1 of the 1st and 100th type wheels 2, and simultaneously drives them 1/10 rotation to change the 100th digit.

In this case, the claw portion 10A that urges the 1st and 10th position wheels
, IOB falls into the groove of each pawl locking ratchet 1.

Therefore, the rotation angle of the feed pawl mechanism 10 with respect to the pole fulcrum 9A becomes larger than in the case of carrying from the 1st to the 10th position described above.

The amount of rotation of the feed pawl mechanism 10 is transmitted to each component in the same manner as in the case of the 10th place carry described above, and the reverse rotational force of the second drive mechanism 21 is similarly applied to the check digit type wheel 7. be done.

Specifically, first, the driving locking rod 44A of the attachment/detachment mechanism 44 locks the driven locking rod 44B and rotates together with the pole arms 9, 9 in the direction B in FIG. The release cam 43 also rotates on the support shaft 5 together with the stopper 44B, biasing the check pawl 42 and causing the check pawl 42 and the ratchet gear 13 to rotate.
At the same time, the stopper mechanism 41 is removed.

Therefore, the position setting claw 41A of the stopper mechanism 41 is released from its locked state.

Therefore, the rotational drive control mechanism 33 operates under a preset condition, and then the reverse rotational force of the second drive mechanism 21 is applied to the check digit type wheel 7.

In this case, the rotational drive control mechanism 33 controls the check digit type wheel 7 to rotate 7/10 in the direction opposite to the rotational direction of the type wheel 2 of the printing unit 3 as described above.

That is, the selection cam 38B selects the pawl rod 37B in accordance with the amount of rotation of the feed pawl mechanism 10 with respect to the pawl fulcrum 9A, and the preset cam 36]3 selects the pawl rod 37B and sets the locking pawl T3 portion of the pawl rod 37B.
Contact J: with foil.

As a result, when the check digit type wheel 7 is rotated 7/10 times under the preset condition by being biased by the second drive mechanism 21 as described above, the locking pawl T3 and the preset cam 36B are raised at that position. Since the locking teeth T1 mesh with each other, the rotation of the check digit type wheel 7 is stopped at that point.

In this case, rotation of the preset cam group is possible because the stopper mechanism 41 is unlocked.

Therefore, the operation of each component until the rotation of the check digit type wheel 7 is stopped is controlled by the position setting pawl 4.
The procedure is the same as in the case of carrying to the 10th place described above, except that 1A rotates 7/10 times in conjunction with the preset cam group 36.

Then, the next operation, the lowering operation of the pressing rod 51, begins.
After the code number carried to the 00th place and the corresponding check digit are issued, when the external force is removed from the pressing rod 51 and it is raised back to its original position, each component will be moved to the 10th place mentioned above. As in the case of the carry printing operation, the preparatory operation for printing out the next 1st code number is performed again.

In this case, the position setting claw 41A is connected to the preset cam group 36.
It rotates 3/10 times as one, returns to the original locking position, and is reset.

Below, until the code number becomes "...999", each of the above-mentioned changes in the 1st digit, carry up from 1st to 10th, and further carry from 10th to 100th are carried out. The same operation is repeated.

Then, from 100th place to 1000th place, from ioooth place to 10000th place, and further from 10000th place to 100th place.
In the case where each carry is carried up to 000, the rotational drive control mechanism 33 is activated by the rotational energy of the second drive mechanism 21 according to a pre-stored control value, and the check digit type wheel 7 is activated. is rotated by a predetermined amount, thereby identifying the check digits corresponding to the code numbers that are sequentially printed out, and simultaneously printing them out.

As described above, according to the present invention, there is provided an automatic feed pawl mechanism that rotates reciprocally by being biased by the pressing operation of a suppressing member, and a pawl catch mounted on each character ring that is engaged with the automatic feed pawl mechanism. A numbering device is provided with a printing unit having a locking ratchet, and a check digit type wheel is rotatably installed coaxially with the printing unit of the numbering device, and simply rotates synchronously with the printing unit to print the corresponding number. When setting the serial number of the printing unit and the corresponding check digit, the check digit type wheel is rotationally driven using the pressing action of the pressing member, so that the same effect as in the past can be achieved. In addition to this, when setting the serial number of the printing unit and the corresponding check digit at a singular point when carrying the printing unit, the check digit type wheel is set by another drive mechanism installed separately. Since we have adopted the principle of controlling the drive of a complex check digit, even when dealing with a complex check digit singularity, simply controlling the operation of the other drive mechanism will eliminate the check digit printing theory that occurs at the singularity. According to claim 2 constructed based on such a method, the irregular rotation of the storage mechanism can be sufficiently and easily accommodated and the changed check digit can be set. Since the memory contents can be freely changed according to the modulus and weight, even complex check digits with a modulus of 2 or more, which were previously considered difficult and neglected, can be treated as check digits that are inseparable from the code number. It is possible to provide an unprecedented and superior check digit type wheel drive control method and device that can continuously print out the code number simultaneously with the code number by an operation similar to a normal numbering operation.

In the above embodiment, the case where the modulus is 10 and the weights are 1, 3, and 7 is illustrated, but the present invention is not necessarily limited to this, and the modulus is 10.
Set the weight to another number with 0, specify the weight arbitrarily with modulus 11, or calculate the check digit for each code number in advance for runes check, nines check, etc. and calculate the repeating number of the check digit and its value. By determining the direction and changing the arrangement of the printing digits on the check digit type wheel 7, and further specifying the jump amount of the cyclic digits at the singular point, etc. Stop tooth T1
By adjusting the position of , the present invention can be applied as is to these other moduli and weights.

Further, the synchronous drive mechanism 11, the synchronous release mechanism 12, the rotational drive control mechanism 33, or the second
Each of the drive mechanisms 21 may be replaced with other components as long as their basic functions are the same.

For example, the drive source 21 may be an externally energized mainspring that is a drive source for a watch or the like.

[Brief explanation of drawings]

FIG. 1 is an enlarged perspective view showing one embodiment of the present invention, and FIG.
The figure is a front view showing the printing unit part that constitutes a part of FIG. 1, FIG. 3 is a front view showing the base frame housing each component shown in FIG. 1 is an explanatory diagram showing the relationship between the preset cam and the pawl rod portion, which is a part of FIG. It is a diagram. 1... Ratchet for pawl locking, 3... Printing unit, 7... Check digit type ring, 10... Feed pawl mechanism, 11... ...First
Synchronous drive mechanism as a drive mechanism, 21... Second drive mechanism as another drive mechanism, 35... Selective locking mechanism, 36... Preset as a storage mechanism. Cam group, 51... Pressing rod as a pressing member.

Claims (1)

[Scope of Claims] 1. An automatic feed pawl mechanism that rotates back and forth when urged by the pressing operation of a pressing member, and a pawl locking ratchet attached to each wheel that is engaged with the automatic feed pawl mechanism. A numbering device is provided, and a check digit type wheel is rotatably installed coaxially with the printing unit of the numbering device, and simply rotates in synchronization with the printing unit to print the number of the printing unit. When setting a serial number and a check digit corresponding thereto, the check digit type wheel is rotationally driven by using the suppressing action of the pressing member, etc., and the singular point at the time of carrying of the printing unit is When setting the serial number of the printing unit and the corresponding check digit, the drive of the check digit type wheel is controlled by another drive mechanism provided separately. Control method. 2. A numbering device is provided that includes a feed pawl mechanism that rotates when urged by the pressing operation of a pressing member, and a printing unit that has a pawl locking ratchet that is engaged with the feed pawl mechanism. A first rotatable check digit type wheel is provided coaxially with the printing unit, and the check digit type wheel is synchronously driven in synchronization with the pressing operation of the pressing member. and a second drive mechanism for irregularly driving the check date type wheel as necessary, and select one of the first and second drive mechanisms. A selection locking mechanism for locking the check digit type wheel is connected to the feed pawl mechanism, and a rotation amount of the check digit type wheel based on the second drive mechanism selected by the selection locking mechanism is predetermined. A drive control device for a check digit type wheel, characterized in that a storage mechanism for controlling based on stored values is attached to the second drive mechanism.