JP3270263B2 - Time recorder with out-of-frame printing prevention function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in the technical field of an automatic card transport type time recorder that automatically transports an inserted time card by a transport roller and prints time. The present invention relates to a time recorder with a function for preventing printing outside a frame, which is devised so that time printing can be correctly performed in a frame of a predetermined printing column of a time card.

[0002]

2. Description of the Related Art In a conventional time recorder, as shown in, for example, Japanese Utility Model Application Laid-Open No. 3-50277, a drive roller for card transfer is mounted on a drive shaft directly connected to a card transfer motor, and this drive roller and a driven shaft are attached. A card transport device is constructed in which a card is transported with a card sandwiched between driven rollers mounted on the drive shaft, and a rotary encoder (disk) for detecting a card feed amount is mounted at one end of the drive shaft. And is configured to accurately convey the inserted card to the printing position.

However, in the conventional card transport device configured as described above, a rotary encoder is attached to the drive shaft side directly connected to the motor to detect the transport amount of the card. Even if the card inserted between the rollers could not be reliably gripped and conveyed, the drive shaft continued to rotate and the rotary encoder continued to detect the amount of rotation. There is a problem that the encoder mistakenly determines that the card is being conveyed as usual, and performs printing at an incorrect position on the card, or a printing operation is not performed at all.

[0004] In addition, when an external load is applied to the card transport by gripping the card during the transport of the card, there is another problem that the transport of the card is similarly disturbed and the printing position is shifted.

Further, when a card is pushed or ejected during printing, the printing position may be deviated or the printing may be bent.
It is necessary to lock a card during printing by using a card lock device as described in Japanese Patent Application Laid-Open No. 9992/99, and there is also a problem that the cost of the time clock is increased accordingly.

Accordingly, the present applicant has filed a Japanese Patent Application No. Hei 6-230.
As can be seen in the application of U.S. Pat. No. 623, a rotary encoder is mounted on the roller shaft side of a driven roller that conveys a card with a time card sandwiched between a driving roller rotated by a motor, so that slipping or card holding is achieved. Even if feeding of the inserted time card is hindered due to external factors, only the actual transport amount by the driven roller is detected, so that the time card is always transported to the correct position and the printing position is not misaligned. In addition, by adopting a configuration that transmits the rotation of the motor to the drive shaft side by meshing the worm and the worm wheel, the time card can be locked during printing without using a card lock device. Developed a card transporter for time clock.

[0007]

However, in the case of the above-described card transfer device in which a rotary encoder is attached to a driven roller shaft, for example, the time card is picked up with a finger during the transfer to stop the card transfer at that position. Later, if it is separated as it is, the subsequent rotation amount of the driven roller, i.e., the transport amount, can be accurately grasped by the rotary encoder, and the time card can be accurately transported to the print column position of the day. Yes, but if the time card being conveyed is forcibly pushed in the conveying direction by hand, or pulled out in the discharge direction, the driven roller is rotated together with the driven roller in the forward or reverse direction. Then, the rotary encoder counts this rotation in pulses, so that the card is not properly conveyed and printing cannot be performed accurately in the frame of the predetermined printing column. There was a problem.

In addition, in the case of the locking means of the above-described card conveying device which holds the time card between the drive roller and the driven roller by the engagement action of the worm and the worm wheel, the drive roller also engages with the worm and the worm wheel. Although the locked state can be maintained, the driven roller can rotate completely freely, so the actual locking force is limited to the range of the grip force between the drive roller and the driven roller, and the force greater than this grip force When the card lock device is not used, the time card is moved after the printing field is determined or during printing, and the printing is performed in the printing field. There was a problem that it came out of the frame.

[0009] Therefore, a technical problem of the present invention is that, when a time card is disturbed due to an external load while the time card is being conveyed, this is immediately detected and printed outside the frame of the print column. Can be prevented and after the print column is determined, or
Even when the time card is forcibly moved during printing, this is detected to prevent printing outside the frame of the print column.

[0010]

Means taken by the present invention to solve the above-mentioned technical problems are as follows.

The time card is conveyed between a driving roller rotated by a motor and a driven roller which rotates in contact with the driving roller by counting the number of pulses generated from a rotary encoder provided on the driven roller shaft side. By doing so, the transport of the time card is stopped at the print column position of the day, and, in the time recorder configured to print the time in this print column,

(1) Lower end of inserted time card
From the edge or the predetermined mark written on the time card,
The number of pulses calculated for each distance to the print column for each date is
A method that stores in advance the number of pulses to be conveyed for each print column
Mori and transport to the print column of the day when the time card was inserted
Recall the number of pulses to be sent from the memory and
The conveyance of the time card by La and the driven roller, the Thailand
Starting from the lower edge or mark of the card
Card transport that is performed for a distance equivalent to the number of pulses to be transported
Means and the actual transport amount by both rollers
Count the number of pulses and the number of pulses to be conveyed.
If the difference is within the allowable range, the time card
Printing means for printing the time in the character box, and the actual number of pulses
If the difference between
Alarm means for issuing an alarm and discharging the time card
To have

( 2 ) If a predetermined number or more pulses are generated from the rotary encoder after the time card is conveyed by the driving roller and the driven roller and before printing by the printing means is started, the warning means issues an alarm. And immediately emit the time card.

( 3 ) After the transport of the time card by the driving roller and the driven roller is stopped, and when a predetermined number or more of pulses are generated from the rotary encoder during printing by the printing means, the printing means , Printing is stopped immediately, and the alarm means issues an alarm and discharges the time card.

[0015]

The means described in the above (1), (2) and (3) operate as follows.

According to the means described in the above (1), each date
The number of pulses to be conveyed to the print column of
During normal operation, the time card can be accurately conveyed between the driving roller and the driven roller, and printing can be performed within the frame of the determined printing column. In the case of an irregular conveyance, the actual amount of conveyance by the driven roller is counted by a pulse, and the number of pulses to be conveyed is compared with the number of pulses to be conveyed stored in the memory to easily determine the irregularity. As a result, if the error in the number of pulses exceeds the allowable range, a warning will be issued assuming that a transport error has occurred and the time card will be ejected immediately, so printing outside the print column frame based on the insufficient transport amount will be performed. Can be prevented beforehand.

According to the means described in the above ( 2 ), after the card is conveyed by the driving roller and the driven roller and the time card is stopped at the print column position on that day, before the printing by the printing means is started. When the time card is moved by hand or the like, this movement is detected by pulse detection by the rotary encoder, and if the amount of movement exceeds the set range, an alarm is issued and the time card is ejected immediately. It is possible to prevent printing outside the print column frame due to movement of the time card after determination.

According to the means described in the above ( 3 ), if the time card is moved by hand or the like while the printing field is determined and printing is being performed by the printing means, the pulse by the rotary encoder is used. This movement is detected by detection, and if the movement amount exceeds a set range, printing is immediately stopped, and an alarm is issued to discharge the time card, thereby preventing printing outside the print column frame. Make it possible.

As described above, the technical problems described above can be solved by the above-described means, and the problems of the conventional technology can be solved.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the above-mentioned time recorder with a function of preventing printing outside a frame according to the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 shows the external appearance of a time clock 1 according to the present invention, wherein 1T is a switch for selecting and setting the time and attendance, 2 is a slot for a time card TM, and 3 is a display for displaying time and the like. Show.

FIG. 2 and FIG. 3 are a front sectional view and a partial sectional plan view, respectively, illustrating a main part of the present invention, which is implemented inside the time clock 1 described above. In the drawings, reference numerals 4 and 5 denote a drive shaft and a driven shaft which are installed in parallel in front of and behind the card transport passage 2A leading to the above-mentioned insertion slot 2. One end of each of the shafts 4 and 5 is a body. Rotatably supported by the bearing 6 attached to the holder 7 side of the
A worm wheel 4 attached to one end of the drive shaft 4
When G is engaged with the worm 8G of the card feed motor 8 attached to the holder 7 and the card detection sensor 15S shown in FIG. 2 detects the time card TM inserted into the insertion slot 2, the card feed motor 8 The drive shaft 4 is configured to rotate and rotate in conjunction with the drive shaft 4.

Reference numerals 4a and 5a denote a driving roller and a driven roller mounted on the driving shaft 4 and the driven shaft 5, respectively. The driven shaft 5 is a spring built in a pressing bearing member 11 supporting the other end. Of the time card TM by pressing the driven roller 5a against the drive roller 4a of the drive shaft 4 so as to push the inserted time card TM between the two rollers 4a, 5a. While the card is fed between the rotary shafts, the card feed amount is determined by the number of rotations of the encoder disk 9 attached to the other end of the driven shaft 5, that is, the number of slits (not shown) formed in the disk 9. Encoder 9S
Is configured to detect by pulse counting.

The above-mentioned pressing bearing member 11 is the same as that shown in FIG.
4, a spring box 11T fixed to the holder 7 side, a compression spring 14 mounted in a storage chamber 11a formed inside the spring box 11T, and a spring box. A fixed bearing body in which the left and right leg plates 12a, 12a are inserted into and engaged with the tip end of the 11T, and the other end of the drive shaft 4 is rotatably fitted and supported in a shaft hole 12c formed in the head. 12 and the left and right leg plates 1 of the fixed bearing body 12
A movable bearing body 13 is inserted into the space chamber 12b formed between the movable shafts 2a and 12a so as to be able to move forward and backward in the direction of the drive shaft 4. Further, one end of the movable bearing body 13 A spring groove 13b for supporting the driven shaft 5 is formed at the other end, and the other end of the driven shaft 5 is It is configured to be constantly pressed in the direction of the drive shaft 4 by an elastic force.

Accordingly, the driven roller 5a attached to the driven shaft 5 receives the elastic force of the compression spring 14 built in the pressing bearing member 11, and is always stable with respect to the driving roller 4a of the driving shaft 4. The drive shaft 4
When the time card TM is inserted between the rollers 4a and 5a in a state where the rollers 4a and 5a are driven and rotated, the rollers 4a and 5a
Are linked to rotate and transport the card.

In FIG. 2, reference numeral 17 denotes a sensor 17a for reading the notch Ma formed at the lower end Mb of the time card TM to determine the front and back of the card, and a lower end Mb or lower end of the time card TM. A time sensor 1 according to the present invention, comprising: a lower end sensor Mb or a lower end Mb of the time card TM into which the other sensor 17b is inserted. When the mark Md is detected,
The distance from the lower end Mb or mark Md to the day of the print column Mc L (see FIG. 6), and a number of pulses to be conveyed to the distance by calls from the ROM of the memory to be described later, the driving roller 4a and a follower roller The card transport by 5a
It is configured to perform a distance corresponding to the number of the calling pulses.

According to the present invention, when the time card TM is transported based on the number of pulses to be transported, the rotation of the encoder disk 9 that rotates together with the driven roller 5a is detected by the rotary encoder 9S, so that the rotary encoder 9S actually detects the rotation. The number of transferred pulses is counted, and when the difference between the actual number of pulses and the number of pulses to be transferred is within an allowable range, that is, for example, the difference is within a range of -10 to +10 pulses (10 pulses = 2 mm and therefore ± 2 mm), the print block PH shown in FIG. 3 prints on the print column Mc of the day, but the difference between the actual number of pulses and the number of pulses to be conveyed is an allowable range. Is exceeded (<−10 or> +10 pulses), it is determined that the time card TM has been pushed or pulled during transportation, and
The alarm 18 (see FIG. 5), which will be described later, is activated to issue an alarm, and the card feed motor 8 is reversed to immediately discharge the time card TM.

Further, in the present invention, the driving roller 4
a and the driven roller 5a transport the time card TM to the position of the print field Mc of the day, and then print the print block PH.
Before the time printing or the like is performed on the printing column Mc by the above, or while the printing block PH is performing printing, the rotary encoder 9S outputs a pulse exceeding an allowable range (for example, <−10 or> +10 pulses). ) Is detected, the alarm 18 is activated assuming that the time card TM has been moved, and the card feed motor 8 is reversed to immediately discharge the time card TM.

The alarm device 18 may be a device that generates a warning sound or a warning sound, a device that turns on a warning lamp, a device that displays a warning on the display device 3, or the like. These alarm means may be used in combination.

FIG. 5 is a block diagram for explaining the above-mentioned electrical configuration of the present invention. In FIG. 5, reference numerals 20 and 21 denote a CPU and a memory which constitute the center of the control unit, and a bus 2 between them.
2 are connected to the interface circuit 23 via the clock-in / out selection and setting switch 1T.
In addition to the card detection sensor 15S, the card feed motor 8, the rotary encoder 9S, and the card lower end detection sensor 17, a type horizontal movement stepping motor 19M, a type horizontal movement home position sensor 19S, and a type selection stepping motor constituting the print block PH are provided. 20M,
A type home position sensor 20S, a black and red print solenoid PHS are connected, and a clock circuit 16 for transmitting a reference clock signal and the alarm 18 described above.
Are connected, and are controlled and operated in accordance with the system programs stored in the memory 21, respectively. The memory 21 has a tie as described above.
On the bottom edge Mb of the time card TM or the time card TM
Calculated for each distance from the marked mark Md to the print column for each date.
The number of each issued pulse is stored in advance .

Next, the operation of the present invention will be described with reference to the flowcharts shown in FIGS. In the first step S1 shown in FIG. 7, it is determined whether or not the card detection sensor 15S has detected the inserted time card TM.
In the case of S (detection), the process proceeds to step S2 to obtain a printing step (printing field Mc) on the time card TM corresponding to the current date, and then proceeds to step S3 to determine the printing step from the lower end Mb or the mark Md of the time card TM. Distance L to printing step Mc
Further, the process proceeds to step S4, where the distance L is converted into the number of pulses to be conveyed, and in step S5, the number of pulses to be conveyed is set as a pulse count reference.
Proceeding to step S6, the card feed motor 8 is rotated at a high speed to start transporting the time card.

[0032] However, since the number of pulses to be transported for each date field in the ROM of the memory 21 described above in the present invention is stored in advance, and next to the step S5 in the step S2 is executed, step S6 Proceed to.

In the first step S7 after the start of the transport of the time card TM, at the lower end Mb of the time card TM
It is determined whether or not the other sensor 17b of the card lower end detection sensor 17 detects the signal. When the detection (ON) is made, the process proceeds to step S8, where the interruption of the pulse is permitted. Then, the process proceeds to step S9, where the actual operation by the rotary encoder 9S is performed. Counting of the number of pulses is started.

When the distance L and the number of pulses are obtained starting from the mark Md written on the lower end side of the time card TM, when the other sensor 17b detects this mark Md in step S7, the process proceeds to step S7. The pulse interruption of S8 is permitted, and the pulse counting is started.

As a result of the pulse count (minus count) in step S9, if the number of pulses is equal to or smaller than the deceleration start value (fixed value) obtained in advance by experiment, the process proceeds to step S10. , The card feed motor 8 is rotated at a low speed, and further proceeds to step S11. If the number of pulses is equal to or smaller than the brake start value (fixed value) obtained in advance by experiment, the process proceeds to step S12. The transport of the time card TM is stopped by applying a brake to the card feed motor 8, and then the step S
Go to Step 13 and wait 100 ms, then go to Step S1
In step 4, the brake is released, and the flow advances to the next step S15.

In step S15, when the card feeding for positioning the print field Mc of the time card TM on the print section of the print block PH is completed, the rotary encoder 9 is turned on.
The actual number of pulses detected by S is compared with the set number of pulses to be conveyed. If the difference is within a range of -10 to +10 pulses (within an allowable range), step S is performed.
Proceeding to step S16, after the printing process by the printing block PH, the process proceeds to step S17, in which the card feed motor 8 is rotated in reverse to eject the time card TM, and the process is completed. When the pulse number difference is <−10 or> +10 pulses, If the time exceeds the allowable range, it is considered that the time card TM has been pushed or pulled by hand, and the process proceeds to step S18 to prohibit the interruption of the pulse. Proceeding to S17, the time card TM is immediately discharged, and the process ends.

FIG. 8 is a flowchart relating to the interrupt processing of the pulse read by the rotary encoder 9S. If there is a pulse interrupt from the rotary encoder 9S, the pulse count is decremented by -1 (minus count) in step S20, and the processing ends. .

On the other hand, FIG. 9 is a flowchart for explaining the procedure of a printing process performed after the card is conveyed by the rollers 4a and 5a. In the first step S21 after the card is conveyed (after the print column is determined), the above-described type is used. The stepping motor 19M for lateral movement is operated to move the print block PH in the lateral direction to the position of the print column selected by the above-described switch 1T, and then prohibits the interruption of the pulse in step S22, and then proceeds to step S23. The state of counting the number of pulses by the rotary encoder 9S is determined, and if the number of pulses is within the allowable range of -10 to +10 pulses, the process directly proceeds to step S24 to print the print block P
H, the current time is printed. If the number of pulses by the rotary encoder 9S exceeds the allowable range, ie, <
If a -10 or> +10 pulse is detected, it is determined that the time card TM has been moved between the time the card is stopped and the time printing is started, the alarm 18 is activated in step S25, and the time card TM is executed without performing the printing process. To discharge.

During the printing process by the printing block PH, the rotary encoder 9S exceeds the allowable range.
Alternatively, when a pulse of> +10 is detected, the operation and processing of the alarm sound 18 in step S25 are similarly performed, the printing by the printing block PH is interrupted, the time card TM is immediately discharged, and the processing ends.

FIG. 10 is a block diagram for explaining the overall configuration of the present invention. In this figure, the distance L to the printing stage of the day and the number of pulses to be conveyed corresponding to this distance L are calculated. Thereafter, a configuration is described in which the number of pulses to be conveyed is compared with the actual number of pulses to determine an error in the number of pulse counts.

[0041]

As described above, according to the time recorder with the out-of-frame printing prevention function according to the present invention, the time block is being transported, before the printing block starts printing after the transport is stopped, or by the printing block. During printing, if an external load that pushes or pulls the time card causes an unusual change in the transport and stoppage of the time card, the printing is stopped or interrupted to immediately stop the time card. Since the card is ejected, it is possible to eliminate the failure of the printing by the print block to stick out of the frame of the print column on the day, and to exhibit the advantage that the print can always be correctly performed in the frame of the print column. Since the printing failure can be prevented without using the card, the structure of the time clock can be simplified by removing the card lock device.
This is a revolutionary time clock, combined with the advantage of lowering costs.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of a time clock with an out-of-frame printing prevention function according to the present invention.

FIG. 2 is a front sectional view showing a configuration of a main part of the present invention.

FIG. 3 is a partial cross-sectional plan view showing a configuration of a main part of the present invention.

FIG. 4 is a side sectional view illustrating a configuration of a pressing bearing member.

FIG. 5 is a block diagram illustrating an electrical configuration of the present invention.

FIG. 6 is a front view showing an example of a time card used in the present invention.

FIG. 7 is a flowchart illustrating the operation of the present invention.

FIG. 8 is a flowchart relating to a pulse interruption process.

FIG. 9 is a flowchart related to a printing process.

FIG. 10 is a block diagram illustrating the overall configuration of the present invention.

[Explanation of symbols]

 Reference Signs List 1 time recorder 4 drive shaft 4a drive roller 5 driven shaft 5a driven roller 8 card feed motor 9 disk for encoder 9S rotary encoder 17 card lower end detection sensor PH print block TM time card Mb lower end Mc Print field of the day Md mark L distance

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Takeshi Watanabe 275 Soyodo-cho, Kohoku-ku, Yokohama-shi, Kanagawa Prefecture Inside Amano Corporation (56) References JP-A-5-94573 (JP, A) JP-A-3-50277 (JP, U) Japanese Utility Model 63-103169 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G07C 1/00

Claims (3)

(57) [Claims] A driving roller rotated by a motor;
By transporting the time card between the driven roller and the driven roller that rotates in conjunction with the driving roller while counting the number of pulses generated from the rotary encoder provided on the driven roller shaft side, the transport of the time card is performed on that day. In the time recorder configured to stop at the print column position and print the time in this print column, the lower edge of the inserted time card or the time card
Distance from the specified mark described in
The number of pulses calculated for each release is transported in advance for each print column.
The memory that stores the number of pulses and the time card
Write down the number of pulses to be transported to the print column on the day of the insertion.
From the drive roller, and
Transport the time card to the lower edge of the time card or the
The number of pulses to be conveyed from the
Card transport means that performs only the appropriate distance, and both rollers
Pulse count of the actual transport amount by
The difference between the number and the number of pulses to be conveyed is within the allowable range
In the case, the time stamp is printed on the print column of the time card.
Character means, the actual number of pulses and the number of pulses to be conveyed.
If the difference between
Alarm means for discharging the card.
Time recorder with out-of-frame printing prevention function . 2. When a predetermined number or more pulses are generated from a rotary encoder after a time card is conveyed by a driving roller and a driven roller and before printing by a printing unit is started, an alarm unit issues an alarm. 2. The time recorder with an out-of-frame printing prevention function according to claim 1 , wherein the time card is configured to emit the time card immediately. 3. When a predetermined number or more pulses are generated from a rotary encoder while printing is being performed by a printing unit after the conveyance of a time card by a driving roller and a driven roller is stopped, the printing unit performs a printing operation. The time recorder with an out-of-frame printing prevention function according to claim 1 , wherein the printing is immediately stopped, and the alarm means issues an alarm and discharges the time card.