JPS5849198B2 - Numbering device with check digit - 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 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
) or by specifying various weights
10, modulus 11, nines check, etc.

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, addition, subtraction, multiplication, and division are performed according to a predetermined calculation method based on a predetermined modulus and weight for each printed code number. The method used was to calculate and then annotate 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, an object of the present invention is to press a code number printed by a numbering device and a check digit that inseparably corresponds to the code number and circulates continuously without relying on an external power source. To provide a numbering device with check digits capable of simultaneously and successively punching out numbers by pressing a rod.

Therefore, the present invention includes a feed pawl mechanism that rotates when urged by the pressing operation of the suppressing member, and a printing unit that has a pawl locking ratchet that is engaged with the feed pawl mechanism. In a numbering device with a check digit rotatably equipped with a coaxial check digit type wheel, the check digit type wheel is caused to synchronously drive the check digit type wheel in synchronization with the pressing operation of the suppressing member, etc. A first drive mechanism is engaged with a second drive mechanism which is controlled by a control unit as necessary to drive the check digit type wheel irregularly, and the drive source of the second drive mechanism is connected to the first drive mechanism. is constituted by a spring mechanism, and one end of the spring mechanism is engaged with the check digit type wheel or a member driven in synchronization with the check digit type wheel, and the spring mechanism is wound using the pressing action of the pressing member, This aims to achieve the above objective.

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 to n, where n is a natural number), for example, the check digit is determined to have a modulus of 10 and a weight of 1, 3.7, and the generally used method, i.e. , if we add the sum of the products of the code number and the corresponding weights, divide this by the modulus number, subtract the remainder from the modulus number, and use the remainder as the check digit. , the calculated numbers (check digits) are "0, 3, 6,
It turns out that the numbers 9, 2, 5, 8, 1, 4, 7J are 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 three digits are "...999J1, the last four digits are "...9 9 9 9
J, the last 5 digits are ``...99999, etc.'' It has become clear that singularities occur when 99999, etc. are typed out and carried to the next position, and that the content of each singularity is different.

In other words, if the code number is, for example, from "...9" to "...
・When moving from 1st place to 10th place, such as from 10' or 89 to 90J, use 9'.
and "...IOJ" or "...89" and "...90
J 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 up from "...99" to the next 100th digit, the check digit of the carried number is changed from the check digit number of "...99". In accordance with the cycle shown in FIG. 5, the number is skipped by two and the third digit is reached (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 the fourth check digit, skipping three digits from the check digit of "...999". number (for example, if the check digit of "...999" is "1", then "...1 0 0 0
The check digit of J is "3").

Also, when the code number "...9999j" is carried over to the next digit, the check digit of the carried code number is "...9999j's check digit skipped two digits and then the third digit. Numbers (for example, the check digit of 9 9 9 9J is 8
”, then the check digit of “...IOOOOJ 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 "...9 9 9 9 9J.
The check digit of 99999J is 5 digits higher than the 6th digit (for example, the check digit of 99999J is 1
”, then the check digit of “...IOOOOOJ is “9”).

In the same way, the code number increases and consecutive "
When the number ``9'' is struck, it becomes clear that at each singular point, a predetermined number of repeating digits shown in Figure 5 are displayed, or the same digit is displayed, and the check digit of the code number is specified. Ta.

Next, a specific example of the present invention that utilizes the properties of the check digit described above 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. Ru.

A check digit type wheel 7 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 repeat 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 IA, 1B 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...
IB, 1C, . . . are provided with known deep carry grooves (not shown) that 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, and the type wheels 2, 2 corresponding to pawls 10A, 10B are simultaneously driven to rotate and advance by one digit, and furthermore, pawls 10A, I are placed in the deep grooves for carry up.
When each OB falls at the same time, the third digit type wheel 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 pawl mechanism 10 and the check digit type wheel 7
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 jet type wheel 7 is interposed.

The synchronous 1 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
a spring 15 which is interposed between the CD pawl 14 and the feed pawl mechanism 10 and transmits the reciprocating rotational force of the feed pawl mechanism 10 to the CD pawl 14; A CD ball stopper 16 is also included.

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

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

Thereby, 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 the pawl mechanism 10 and the pawl mechanism 10 are integrally rotated. 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 which has the function of separating the check digit from the check digit type wheel 7 and whose central axis is fixed to the horizontal rod 8A, and a small pinion 17 which is engaged with this pinion 1γ and rotatably mounted on the horizontal rod 8B. It is composed of a gear 18 and a control pin 19 which is implanted in the pinion 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 embodiment, the synchronization release mechanism 1 is
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 "l-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 as a spring mechanism is fixed to the left end of the CD wheel coupling shaft 20 in FIG.
is locked.

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 meshed with the pawl 25 against the rotational force of the drive torsion spring 22 .

These 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 the cam wheel 23 is wound more than necessary, the cam wheel 23 and the drive torsion spring 22 rotate in the same direction against the torque setting spring 24, and the pawl 27 and the ratchet wheel 25 are disengaged.

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 38A, 38B, .・Selective locking mechanism 3 based on
5 is equipped.

Further, a memory is provided between the second drive mechanism 21 and the check digit type wheel 7, in which the amount of rotation of the check digit type wheel 7, which is rotated by the second drive mechanism 21, is calculated and stored in advance. 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 rotary drive leg portion 33 is configured to smoothly rotate the check digit type wheel 7 at the singular point of the check digit IIJ1f[l].

The rotary drive leg part 33 further includes a ratchet locking part 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 40.

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 fixed to each other integrally by twisting 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 T1 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.

The locking pawl T3 side of each of the pawl rods 37A, 37B is biased by a spring or the like and is pressed against the preset cam group 36 side without contacting the preset cam group. Accordingly, one of the pawl rods, for example 37A, is selected by the selection cam 38A 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...
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.
It is fixed to the horizontal rod 8A so as to be able to sequentially engage the guide claws T3 of the claw rods 37A, 37B, . . . in accordance with the rotation angle.

That is, due to the rotation angle of the feed claw mechanism 10 that occurs when the feed claw mechanism 10 performs a carry up to the 10th place, the guide claw portion T4 of the claw rod 37A is engaged with the guide groove t1 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 with 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 into the check digit type wheel 1;
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 includes a starting position setting pawl 41A that is coaxially and rotatably equipped with a locking pawl 40B that forms a part of the ratchet locking portion 40, and a starting position setting pawl 41A that is attached to one end of the pawl 41A. At the same time, the other end is connected to the moving frame 4.
A fixed locking piece 41B fixed to the fixed locking piece 41
B and a spring 41C that biases the position setting claw 41A in the direction of locking the position setting claw 41A.

The check 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 digit 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. At the same time, the above-mentioned sending is performed. a disc cam 45 that operates only when the pawl mechanism 10 rotates significantly with respect to the pole fulcrum 9A during carry-up, and guides the driving locking rod 44A to the driven locking rod 44B; One end of the movable frame 4 is fixed to the movable frame 4, and immediately before the movable frame 4 rises and the printing unit 3 reaches the top dead center, one end of the driving locking rod 44A is pressed in the direction of the disk cam 45. A locking rod release member (not shown) having a function of releasing the locking rods 44A, 44B from the locking rod, and the releasing cam 43 immediately when the locking rods 44A, 44B are released from the locking rod. A return spring 46 returns it to its original position.

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 bulging portion of the disc 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 "0, 3, 6, 9" are printed on the outer peripheral end surface of the check digit type ring 7.
, 2, 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.

As mentioned above, when the modulus is 10 and the weights are "1, 3, 7", this cycle of numbers is determined in accordance with the code number, and some of these numbers are determined as necessary in consideration of the singularity. Alternatively, by performing an operation such as circulating or skipping all the code numbers, it becomes possible to print check digits for all code numbers at the same time as the code numbers.

In this embodiment, when the code number in the tens place 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 preset cam 36A, the locking tooth T1 of the preset cam 36A immediately engages the pawl rod 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 the locking tooth T1 of the pawl rod 37A is locked.

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 brisset cam 36' is rotated 10 times and then stopped.
The position of the locking tooth T1 of B is specified in advance.

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

If there are seven or more preset cams, the position of the locking tooth T] of each cam in the preset cam group 36 is similarly determined in accordance with the change in the circulation of the check digit at the singular point calculated in advance. By adjusting , 1
It is possible to control the amount of rotation of the check digit type wheel 7 of the code number for the singular points of all code numbers greater than or equal to 0, and to follow the changes thereof.

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, . When the pressure rod 51 shown in FIG.
0” on paper, etc.

In response to the downward movement of the moving frame 4, the pole arms 9, 9 and the horizontal rods 8A, 8B supported by the pole arms 9, 9 move around the support shaft 5 relative to each other. The claw portion 10A of the feed claw mechanism 10 and the CD pawl 14 engaged with the claw portion 10A move to the ejection position ( That is, the pawl locking ratchet 1 and the ratchet gear 13 are moved to a position shifted by one tooth.

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 pole 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 for the code number 1'-000001J. "3
” is set (see Figure 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 "000009J" and the corresponding check digit "7" are set and preparation for ejecting is completed, and the above operation is repeated, and at the same time, During this time, the drive torsion spring 22 is twisted by 9/10 turns.

Next, when printing out the code number "o00009J" and the corresponding check digit "7", in the printing process, as the pressing rod 51 and the like are depressed and 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 37A.
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 of the disc cam 45.

As a result, the driving locking rod 44A has its locking claw portion set at a position where it can lock 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 relatively rotate in the direction B, in the same way as described above. However, 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 "OO0".
010".

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 pole arms 9 and 9 to B in Figure 1.
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 check digit 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 digit 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, while the locking pawl T3 rotates and contacts the preset cam 36A and engages with the locking tooth T,
, 9 in the B direction, the attachment/detachment mechanism 44 also rotates in the B direction, and the positioning 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 disengagement 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 period, the position setting pawl 41A of the stopper mechanism 41 and the fixed locking piece 41B are on the verge of engagement, and the non-return pawl 42 is in contact with the tooth surface of the ratchet gear 13, but is not yet engaged. It is in a state where it is not completely engaged.

Then, when the pole arms 9, 9 further rotate in the direction B, the position setting claw 41A and the fixed locking piece 41B1
are engaged, the stopper mechanism 41 works, and at the same time the reverse upward claw 4
2 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 pressure rod 51 and use the code number "00001".
When a printing operation is performed in which a check digit "0" and a check digit "7" are printed at the same time, each part operates as follows during the downward movement of the pressing 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 B....

Also, when the printing unit 3 is lowered, the pole arm 9
, 9 rotate relative to each other in the direction A in FIG. Then, preparations are made to launch the number "L1" on the 1st place type wheel 2 again, and at the same time, the lock with the 10th place type wheel 2 is released.

As a result, the number "1" carried up and displayed on the 10th place type wheel 2 is maintained as it is.

Then, since the feed claw mechanism 10 largely rotates in the D direction with respect to the pole branch 9A and rotates together with the pole arms 9, 9, the code number 1-0000 is
The same situation as when preparations were made to launch 01j 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.
Except that the digit type wheel 2 rotates 1/10th of a turn and maintains that state, and the check date type wheel 7 circulates or stops according to the cycle shown in FIG. , first, code number 1'-0000
After printing out 00J and check digit "0," exactly the same situation is reproduced as when preparations were made to print out code number 1-000001J and check digit "3."

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 driving torsion spring 22 of the second driving mechanism 21 is always subjected to torsional rotation in the same direction from the CD wheel coupling shaft 20.

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

Next, the printing unit 3 prints the code number "...99".
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 engages with the pawl locking ratchets 1 of the 1st, 10th, and 100th character wheels 2, and simultaneously drives them 1/10 rotation to change the 100th number. let

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 structure or member in the same way as in the case of the 10th place carry described above, and in the same way, the reverse rotational force of the second drive mechanism 21 is transmitted to the check digit type wheel 7. applied.

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.

For this reason, the rotary drive armature 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 brings the locking pawl T3 portion of the pawl rod 37B into contact with the preset cam 36B.

As a result, as described above, when the check digit type wheel 7 rotates 7/10 under the preset condition by being biased by the second drive mechanism 21, the locking pawl T3 and the preset cam 36B are connected to each other at that position. Since the locking teeth T, engage 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 to iooo, from iooo to 10,000, and from iooo to iooo.
In the case where each carry is carried to the oo position, the rotational drive control mechanism 33 is energized by the rotational energy of the second drive mechanism 21 and operates according to a pre-stored control value, and the check digit type wheel 7 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, the printing unit includes a feeding pawl mechanism that rotates and slides when urged by the pressing operation of the suppressing member, and a printing unit having a pawl locking ratchet that is engaged with the feeding pawl mechanism, In a numbering device with a check digit rotatably equipped with a check digit type wheel coaxially with the printing unit, the check digit type ring is attached to the check digit type ring in synchronization with the pressing operation of the pressing member. Since the first drive mechanism is provided to synchronously drive the
Furthermore, when setting the serial number of the printing unit and the corresponding check digit at the singular point when carrying the printing unit, a second control unit is controlled by the control unit to drive the check digit type wheel irregularly. Since the second drive mechanism is provided, even when a complicated check digit has a singular point, by simply controlling the operation of the second drive mechanism, irregularities in the check digit type wheel that occur at the singular point can be eliminated. It is possible to sufficiently and easily respond to the rotation and set the changed check digit, and furthermore, the drive source of the second drive mechanism is constituted by a spring mechanism, and one end of this spring mechanism is connected to the spring mechanism. Since a structure is adopted in which the spring mechanism is engaged with the check digit type wheel or a member that is driven in synchronization with the wheel, and the spring mechanism is reeled in using the suppressing action of the pressing member, as long as the device is continuously used, The power source for the two drive parts is stored internally,
Since it is structured and functions as described above, the code number printed by the numbering device and the check digit that inseparably corresponds to the code number and circulate irregularly can be transmitted without depending on an external power source. It is possible to provide a numbering device with check digits that is unprecedented and excellent in that it is possible to simultaneously and continuously punch out numbers by pressing the press rod.

In the above example, the modulus is 10 and the weight is 1.3.7, and the commonly used method is used, that is, the sum of the products of the code number and the corresponding weight is added, and this is calculated as the modulus. An example has been given in which the remainder obtained by dividing by a number is subtracted from the modulus number and the remainder is used as a check digit, but the present invention is not necessarily limited to this. Alternatively, specify the weight arbitrarily using modulus 11, or calculate the check digit for each code number in advance for runes check, nines check, etc., determine the repeating number of the check digit and its direction, and print the check digit in the check digit type. Adjusting the position of each locking tooth T1 of the preset cam group 36 of the rotational drive control mechanism 33 by changing the arrangement of the printing numbers on the wheel 7, and further specifying the jump amount of the cyclic numbers at the singular point. Therefore, the present invention can be applied as is to 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 drive mechanism 21 may be replaced with another structure or member as long as its basic function is the same.

[Brief explanation of the drawing]

FIG. 1 is an enlarged perspective view showing the main parts of an embodiment of the present invention, FIG. 2 is a front view showing a printing unit part that constitutes a part of FIG. 1, and FIG. 4 is an explanatory view showing the relationship between the preset cam and the pawl rod portion, which is a part of FIG. 1; FIG. The figure is an explanatory diagram showing check digit printing numbers attached to the check digit type wheel and their circulation direction. 1... Ratchet for pawl locking, 3... Printing unit, 7... Check digit type wheel, 10... Curved feed pawl mechanism, 11... Synchronous drive mechanism as a first drive mechanism, 21...second drive mechanism, 22...-drive torsion spring as a tX spring mechanism, 33...rotation drive as a control unit control unit, 5
1... Pressing rod as a pressing member.

Claims (1)

[Claims] 1 Equipped with a feed pawl mechanism that rotates and slides when urged by the suppressing action of the pressing member, and a printing unit having a pawl locking ratchet that is engaged with the feed pawl mechanism, and a check digit coaxially with the printing unit. In a numbering device with a check digit rotatably equipped with a rotatable type wheel, the check digit type wheel is provided with a first drive for synchronously driving the check digit type wheel in synchronization with the pressing operation of the pressing member. and a second drive mechanism which is controlled by a control unit as necessary to drive the check digit type wheel irregularly, and the drive source of the second drive mechanism is driven by a spring mechanism. In addition, one end of the spring mechanism is engaged with the check digit type wheel or a member driven in synchronization with the check digit type wheel, and the spring mechanism is wound using the suppressing action of the suppressing member. Numbering device with check digit.