JPS6051440B2 - Numbering device with check digit with overflow detection display function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a numbering device with a check digit, and in particular has an overflow detection display function that prints out a check digit determined by modulus 11 together with a code number and notifies the operator of an overflow in which the check digit becomes a two-digit number. The present invention relates to a numbering device with a check digit.

Generally, there are various methods for determining the check digit used to detect coding errors in code numbers, such as a method of setting weights at modulus 10 and modulus 11, such as a seventh check and a ninth check. It is known that the check digit calculated by setting weights is an excellent method that has the highest error detection rate for coding errors.

However, in Modulus 11, the check digit of the code number often becomes 2 digits such as "゜0゛", and the number of digits that the check digit detection device allows in the code number reading process is 1 digit.
The number in the 0th place overflows, and the check digit ends up being 4“ if the overflow is agreed to be ゜゜0゛.
0", and it becomes indistinguishable from the original check digit 0". Therefore, the code number that caused the overflow normally cannot be used because the accuracy decreases. Gansho 52-130
With the invention of a series of numbering devices with check digits, such as No. 405, we have proposed a device that emits a check digit with a code number of modulus 10 or modulus 11 and arbitrary weight using only a mechanical mechanism. . However, in these series of inventions, even if an overflow occurs in the check digit due to modulus 11, it is necessary to continue the printing operation and remove the code number printed object with the check digit that caused the overflow after printing. It was. Also, as mentioned above, the overflow check digit was assigned to "0" or "゜゜1" and used as is.However, it is necessary to remove the code number slip with the check digit that has overflowed after printing. Although it has an excellent error detection rate, the use of check digits by Modulus 11 has not become widespread because it is very complicated and has poor workability as it wastes slips. The purpose of the invention is to detect, in a numbering device that prints a check digit based on a modulus 11 together with a code number, that a code indicating an overflow engraved on a check digit type wheel has reached the printing position and to notify the operator. In addition, by being equipped with a mechanism that locks the printing operation, the overflow detection display has excellent workability by notifying the operator of check digit overflow in advance and removing the overflowed check digit during the printing operation. The present invention provides a numbering device with a check digit that is equipped with functions.

Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a printing mechanism used in the numbering device of the present invention, which uses the same mechanism as disclosed in Japanese Patent Application No. 131003/1983 by the same applicant.

To explain the outline of the mechanism shown in FIG. 1, the printing unit 10 successively prints out code numbers by sequentially feeding the lowest digit numbering type wheel by the operation of the feed pawl mechanism 12 in response to a printing operation. The check digit type wheel 14 is engraved with a check digit cyclic numeric array consisting of 11 numbers determined by a specific weight of the modulus 11.
There are other peculiarities besides the case where the code number is skipped. Except for the skip rotation at this singular point, it is rotated synchronously with the numbering type wheel of the lowest digit of the printing unit 10. For this purpose, a ratchet gear 16 having 11 teeth is provided integrally with the check digit type wheel 14, and this ratchet gear 16 is fed one pitch at a time during the printing operation except at singular points. A check pawl 18 is engaged with the ratchet gear 16 to prevent it from reversing. The check claw 18 is rotatably supported on a shaft 20 supported by a moving frame 42, and is integrally provided with a detection lever 22 extending upward. The ratchet gear 16, check pawl 18, and detection lever 22 constitute an overflow detection mechanism that will be explained later. A driving force is generated by a torsion spring 26 provided on the left side of the drive shaft 24 in order to idle rotate the check digit type wheel 14 for a predetermined number of skips at the singular point of the code number, and the idle rotation angle of the check digit type wheel 14 is is provided by the preset cam group 28, the selection lever group 30, and the selection cam group 32. FIG. 2 shows an embodiment of the overflow detection and display mechanism according to the present invention, in which an operating shaft 40 having a knob 38 at the tip is slidably penetrated from the upper part of the frame 34, and a moving frame at the lower end is inserted. A printing mechanism shown in FIG. 1 is attached to a shaft 44 supported by
In FIG. 2, only the vicinity of the check digit type wheel 16 is shown. A shaft 20 is attached to the tip of the moving frame 42, and a detection lever 22 integrally provided with a check claw 18 is attached to this shaft 20. The ratchet gear 16, which is provided integrally with the check digit type wheel 14, has a protrusion 46 at a specific position, and in the illustrated state in which the check pawl 18 is fitted into the protrusion 46, the detection lever 22 is moved in the direction of arrow A. is swung in the direction of A code indicating an overflow of check digits is placed at a printing position 50 on the check digit type wheel 14 when the protrusion 46 and the check pawl 18 engage with each other. Generally, in a numbering device, when the knob 38 is at the top dead center (however, the character wheel does not rotate), the next time the knob is pressed down, it is printed as it is, so when the overflow indication code reaches the printing position 50, , this is a notice that a reoverflow check digit will be printed in the next printing operation. This overflow code may be left blank, or an appropriate code such as ゜゜0゛, ``゜1゛, or ゜*゛ is engraved. Therefore, if the check digit overflows, Protrusion 46 of ratchet gear 16
The rotation of the detection lever 22 by the non-return claw 18 that engages with the
It detects check digit overflow. Further, a spring 48 is provided between the detection lever 46 and the operating shaft 40, and when the protrusion 46 of the ratchet gear 16 and the check pawl 18 are disengaged, the detection lever 46
2 is returned to position 22. The upper end of the detection lever 22 is
With overflow detected, stopper lever 5
A shaft 54 that abuts the lower right end of 2 and is fixed to the frame 34
Rotate the stopper lever 52 in the direction of arrow B around .

The left end of the stopper lever 52 has an upwardly directed stopper claw 5.
4, and the slide member 5 is biased by a spring 56 except when an overflow is detected.
The slide member 58 is fitted into the receiving hole 60 of No. 8 and locked at the position of No. 5. It is moved to the right by the force of the spring 56. The stopper lever 52 is maintained in contact with the detection lever 22 by a spring 62. The right end of the slide member 58 forms a shutter portion 64 that is bent into a U-shape, and an overflow indicator 66 is pasted on the frame surface of the shutter portion 64, indicating that the shutter portion 64 is in a slid state as shown in the figure. An overflow display 66 appears to visually notify the operator of the overflow. Also, frame 34
A bell 68 is fixed inside the bell 68, and a hammer 72 is provided at the left end of the slide member 58 via a leaf spring 70 in correspondence with the bell 68, and a hammer 72 is provided to engage the stopper pawl 54 and the slide member 58. When the connection is released, the hammer 72 hits the bell 68 by the movement of the slide member 58, and the operator is notified through his or her senses of the occurrence of overflow for the next printing. Further, a lock groove 74 is bored in the operating shaft 40, and the slide plate 58 fits into the lock groove 74 to prevent the printing operation by the knob 38. This locked state by the slide plate 58 can be released by pushing the right end of the slide plate 58 in the direction of arrow C. Next, the overflow detection display operation will be explained with reference to FIG.

By pushing in the knob 38 and lowering the printing mechanism shown in FIG. When the numbering type wheel 14 is raised, the lowest numbering type wheel of the printing unit 10 is rotated by one pitch, and thereby the check digit type wheel 14 is also rotated synchronously by one pitch.

Assuming that the check digit indicating overflow is positioned at the print position 50 shown in FIG. A detection lever 22 integrated with the stopper lever 52 is rotated about the shaft 20 in the direction of arrow A, and its upper end pushes up the lower right end of the stopper lever 52. Therefore, the stopper lever 52 is rotated about the shaft 54 in the direction of arrow B, and the slide member 58, which had been locked until then, is released from the lock by the release of the stopper claw 54. Then, the slide member 58 is moved to the right by the force of the spring 56, and the bell 68 is sounded by the hammer 72 provided at the left end of the slide member 58. At the same time, the overflow display 66 is exposed by the movement of the shutter section 64, and the overflow display 66 is exposed for operation. The operator notifies that an overflow will occur in the next printing operation. Further, the slide member 58 is fitted into the lock groove 74 of the operating shaft 40, so that printing is prevented even if the knob 38 is pressed as it is. In this way, when an overflow of the check digits is detected, the operator transfers the numbering device to another sheet of paper, pushes the right end of the slide member 58 in the direction of arrow C, unlocks the operating shaft 40, and turns the knob. By pressing 38, the code number that caused the overflow is blank-typed and sent to the next code number.

Through this blank firing operation, the detection lever 22 returns to the normal position shown at 22'', and the stopper claw 5 of the lever 52
4 too. It is fitted into the receiving hole 60 of the light member 58 to unlock the operating shaft 40 and cover the reoverflow display 66 with the shutter part 64. Therefore, the operator can check the check digit without worrying about the contents of the check digit to be printed. The locking mechanism can prevent overflow from printing slips, etc. by mistake when overflow is known, and the numbering work of code numbers with check digits determined by modulus 11 can be omitted. This can be easily done by removing the check digit of the perflow. FIG. 3 shows another embodiment of the present invention, in which a groove 78 is provided in the ratchet gear 16 to indicate when the overflow marking code of the check digit type wheel 14 has reached the printing position 50. Overflow is detected by the swinging of the detection lever 22 in the direction of arrow A'' due to the drop of the check claw 18.

During normal operation, the detection lever 22 is placed at the position shown at 22'', pushing up the stopper lever 52 and fitting the stopper claw 80 into the receiving hole 82 of the slide member 58. 22 is rotated and removed h, and the force of the spring 62 rotates the shaft 54 in the direction of arrow B'', and the stopper claw 80 is disengaged from the receiving hole 82 of the slide member 58, so that the slide member 58 is moved to the right by the force of the spring 56, the overflow display 66 is exposed by the movement of the shutter part 64, and the bell 68 is sounded by the hammer 72, and furthermore, by fitting into the lock groove 74 of the operating shaft 40, the overflow indicator 66 is exposed. , to prevent printing operations. Groove 78 provided in this ratchet gear 16
The numbering operation using the embodiment of FIG. 3 is carried out in the same manner as the embodiment of FIG. 2, in which the depression of the non-return pawl 18 results in an overflow detection indication. Further, as another embodiment of the present invention, a switch mechanism such as a microswitch is provided which is operated by a protrusion or groove for overflow detection provided at a specific position on a ratchet gear provided integrally with the check digit type wheel.
The operation of this switch mechanism may operate a lamp, a bell, etc. indicating reoverflow, and may also lock the operating shaft.

As explained above, the numbering device with check digits having an overflow detection and display function of the present invention includes an overflow detection mechanism that detects when the overflow engraved code of the check digit type wheel reaches the printing position, and this overflow detection mechanism. Modulus 11 has an extremely high error detection rate because it is equipped with an overflow display mechanism that notifies the operator of overflow with sound and display according to the operation of
Among the check digits determined by the method, it is possible to easily remove from the printing target code numbers with check digits that caused overflow, which was an impediment to error detection. This allows the use of code numbers with check digits based on Modulus 11, which had not been done previously, and dramatically increases the reliability of computer processing operations for documents that use code numbers with check digits. It is something that

Also, it will display in advance whether or not the next print will be in an overflow state, so if you forget the number of blank prints when repeating printing, for example, move the shutter section 64 in the direction of arrow C. If you print without pressing the button, you can confirm once again that the next new code number is ready to be printed unless an overflow display, sound, and lock are activated.

It goes without saying that the overflow display function according to the present invention can be similarly applied to electrically-operated numbering devices with check digits, and also when printing consecutive numbers. Those that are compatible are also within the scope of this invention.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a printing mechanism used in the numbering device of the present invention, FIG. 2 is an explanatory diagram showing an embodiment of the overflow detection and display mechanism according to the present invention, and FIG. 3 is an illustration of the overflow mechanism of the present invention. It is an explanatory view showing other examples. 10... Printing unit, 12... Feed claw mechanism, 14... Check digit type wheel, 1
6...Ratchet gear, 18...Return pawl, 20...Shaft, 22...Detection lever, 24...Drive shaft, 26... ...Torsion spring,
28... Preset cam group, 30... Selection lever group, 32... Selection cam group, 34...
Frame, 38...knob, 40...operation axis, 42...movement frame, 44...
Shaft, 46... Protrusion, 48, 56, 62...
...Spring, 50...Print position, 52...
...stopper lever, 54,80...stopper claw,
58...Slide member, 60, 82...Receiving hole, 64...Shutter part, 66...
・Overflow display, 68...Bell, 70...
・・・Plate spring, 72... Hammered metal, 74...
...Lock groove, 76...Paper, 78...
groove.

Claims (1)

[Scope of Claims] 1. In a numbering device that prints a check digit determined by an arbitrary weight of the modulus 11 together with a code number, overflow detection detects that an engraved code representing an overflow of a check digit type wheel has reached a printing position. 1. A numbering device with check digits having an overflow detection and display function, comprising: a mechanism; and a display mechanism activated by the overflow detection mechanism to inform an operator of an overflow of check digits. 2. As an overflow detection mechanism, a protrusion is provided at a specific position on a ratchet gear provided integrally with the check digit type wheel, and the swing of the non-return claw when the non-return claw that engages with the ratchet gear is fitted into the protrusion. A numbering device with a check digit, which is equipped with an overflow detection and display function according to the above item 1, which detects an overflow of the check digit. 3. As an overflow detection mechanism, a groove is provided at a specific position on the ratchet gear provided integrally with the check digit type wheel, and when the non-return pawl that engages with the ratchet gear falls into the groove, the non-return pawl swings. A numbering device with a check digit, which is equipped with an overflow detection and display function according to the above item 1, which detects an overflow of the check digit. 4. As a display mechanism, a slide is released from the locked state in response to the detection operation of the overflow detection mechanism and moves under the bias of a spring to lock the operation shaft that operates the printing mechanism and also exposes the overflow display mark. A numbering device with a check digit, comprising the overflow detection and display mechanism according to any one of the first to third items. 5. A numbering device with check digits equipped with the overflow detection and display mechanism according to item 4, wherein the display mechanism includes a bell that is rung by a slide member moved by the overflow detection mechanism. 6. As an overflow detection mechanism, it has a switch mechanism operated by a protrusion or groove at a specific position on a ratchet gear provided integrally with the check digit type wheel,
The first device is equipped with a display device as a display mechanism that electrically displays an overflow by actuation of the switch mechanism.
A numbering device with a check digit equipped with an overflow detection and display function as described in Section 1. 7. The numbering device with a check digit equipped with an overflow detection and display function according to item 1 above, which is provided with a mechanism that locks the operation shaft of the numbering device by activation of the overflow display mechanism by the overflow detection mechanism.