JPS5949356B2 - Signal reading device that can distinguish between wide and narrow signals - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a signal reading device that reads wide and narrow signals recorded on a signal recording member. Wide and narrow signals are recorded based on the difference in reflectance, a reading member is provided that is movable relative to the signal recording member in the width direction of the signal, and a pair of photoelectric conversion elements is provided in the reading member. In order to prepare, the distance between the substantial signal sensing parts of both photoelectric conversion elements is set to be wider than the narrow signal width and narrower than the wide signal width, and both photoelectric conversion elements sense the signal. a first determination circuit that determines a wide signal when one photoelectric conversion element senses a signal and a second determination circuit that determines a narrow signal when one photoelectric conversion element senses a signal and the other photoelectric conversion element does not simultaneously sense a signal. A signal reading device capable of discriminating wide and narrow signals that can reliably photoelectrically read wide and narrow signals recorded on a signal recording member by having a configuration provided with a determination circuit is provided. It is on offer.

A first embodiment in which the present invention is applied to a reading device for signals such as knitting width and pattern of a hand knitting machine will be described below with reference to FIGS. 1 to 13.

First, the general structure of the hand knitting machine will be described with reference to FIGS. 1 to 3.

1 is a long machine frame from left to right, 2 is a needle thread attached to this machine frame 1, and 3 is, for example, 200 knitting needles arranged in a row on this needle thread 2 so as to be movable in the front and back direction, approximately in the center. The pad 3a protruding from the guide groove 4 of the groove plate 4 which is the top plate of the needle method 2
It penetrates through a from below and projects upward.

Then, as shown in FIG. 3, the 200 knitting needles 3 on the upper surface of the needle receiving plate located in the front part of the groove plate 4 of this needle method 2 are placed on the left side.
The part that bisects to the right is numbered "O", and the part located to the right of this number "O" is marked with "O" in order to correspond to the 100 knitting needles 3 on the right side. Moon, ``2
", ...... The part where the needle number "100" is attached and is located on the left side is marked with "1", [2], ... in order to correspond to the 100 knitting needles 3 on the left side. ..."100"
The needle number is attached. Note that the distance between adjacent knitting needles 3 among these 200 knitting needles 3 is set to, for example, 4.5 distances. Reference numeral 5 denotes a carriage as a movable body, which is installed on the groove plate 4 of the needle bed 2 so as to be able to slide in the left and right direction along the guide rail 6, and on the back side thereof,
Although not shown, a well-known cam mechanism is provided for forming a passage for the butt 3a of the knitting needles 3 to perform the knitting operations of the base stitch and the pattern stitch.

7 is a signal reading processing unit, which will be described below with reference to FIGS. 1 to 6.

A base frame 8 is detachably attached to the rear end of the machine frame 1, and two sheet guides 9 are attached to the rear end.

This sheet guide 9 is formed by bending a single metal wire rod, and has a substantially circular support part 9a with a part opened obliquely forward and downward at the upper end, and a part at the lower end. has a substantially circular winding portion 9b that is open at the front. Then, a display sheet 10 serving as a signal recording member is housed and supported in a substantially cylindrical state in the supporting portion 9a of the sheet guide 9, and one end of the display sheet 10 is attached to the rear end of the base frame 8. The sheet is introduced from above into the sheet introduction section 12 formed by the part 8a of the base frame 8 and the guide plate 11, and then brought to face the winding section 9b of the sheet guide 9. Reference numeral 13 denotes a receiving member attached to the upper part of the part 8a of the base frame 8, and the display sheet 10 passes through the front reflective surface of this receiving member.

Thus, the display sheet 10, as shown in FIG.
For example, a knitting work to be knitted on colorless transparent or white translucent paper, for example, a knitting width instruction signal for the front body of a sweater (
Outer line 14 as a narrow signal), a picture pattern 15 of a ship, etc. as a knitting pattern signal (wide signal) to be inserted into the front body, and a horizontal thick line indicating the opening of a pocket to be attached to the front body. The lines 16 are drawn and displayed in actual size using black ink, for example, and the outline lines 14 are the left side part 141, the left sleeve part 142, the left sleeve part 143, the left shoulder part 144, and the left collar part. 14, Right collar part 146, Right shoulder part 14
, , right sleeve flap upper part 148, right sleeve flap lower part 14, and right side part 141o. (However, the sleeve opening is divided into upper and lower sections with the center point of the collar opening as the border.) In this case, the outer shape line 14 is normally drawn continuously by a single narrow line, but especially in this case, In the embodiment, the left sleeve cut portion 142 is drawn with stepwise discontinuous lines 1421, 1422, . . . as shown in FIG. , is also the same as the left sleeve bottom part 142, and furthermore, the picture pattern 15 is filled in.

Note that the line 16 is drawn as a thick line that is larger than the maximum value of the pitch at which the display sheet 10 is fed in steps, so that it is possible to read at least one step. Reference numeral 17 denotes a stage feeding mechanism, which includes a pulse motor 18 attached to the left end plate of the base frame 8, a gear device 19 that decelerates the rotation of the rotation shaft of the pulse motor 18 and transmits the speed to the drive shaft 19a, A plurality of sprockets 20 are fitted and fixed to the drive shaft 19a.
The pawls 20a of the sprocket 20 fit into a large number of engagement holes 1 formed at both left and right ends of the display sheet 10.
0a.

The step feeding mechanism 17 is adapted to feed the display sheet 10 in steps in the direction of an arrow 21, as will be described later.
Reference numeral 22 denotes a sensor base, which is supported on guide rails 23, 23 installed above and below between the left and right end plates of the base frame 8, so as to be movable in the left and right directions of arrows 24 and counter-arrows 24. has been done.

Further, a support arm 25 is provided protruding from the sensor base 22, and a sensor mounting plate 2 is attached to the support arm 25.
6 is an arrow 28 and a counter arrow 2 in the front and back direction by the shaft 27.
It is rotatably supported in eight directions. A pair of rollers 29, 29 are attached to the rear end of the sensor mounting plate 26 so as to be movable back and forth and rotatable around a shaft biased forward. A tension coil spring 30 is tensioned between the base of the support arm 25 and the sensor mounting plate 26 is rotated in the direction of the arrow 28 by the spring force of the tension coil spring 30. , 29 are brought into light pressure contact with the front surface of the receiving member 13 on the base frame 8. Reference numeral 31 denotes a drive mechanism, which includes a motor 32 attached to the right end of the base frame 8 and capable of forward and reverse rotation, and a drive shaft 3 that controls the rotation of the rotation shaft of this motor 32.
3, a drive pulley 35 fitted and fixed to the drive shaft 33, a driven pulley 36 rotatably attached to the left end of the base frame 8, and this driven pulley. A transmission belt 37 is stretched between the drive pulley 36 and the drive pulley 35, and a portion of the transmission belt 37 is attached and fixed to the sensor i base 22.

In this case, the motor 32 is supplied with a carriage reversal signal from a carriage reversal detector (not shown) which generates a carriage reversal signal when the carriage 5 is reversely moved on the needle bed from left to right or from right to left. The carriage 5 rotates in a predetermined direction based on a carriage reversal signal when the carriage 5 is reversely moved from left to right, and the gear device 34, drive shaft 33, drive pulley 35, and transmission belt 37 The sensor base 22 is moved at a constant speed in the direction of arrow 24 via Shaft 33, drive pulley 35
The sensor base 22 is moved at a constant speed in the direction opposite to the arrow 24 via the transmission belt 37. The moving speed of the sensor base 22 at this time is set to be faster than the normal feeding speed of the carriage 5, which is moved rightward or leftward by manual operation. In addition, load switches 3 are provided at the right and left ends of the base frame 8, respectively.
8 and a reset switch 39 are disposed, and when the sensor base 22 is moved in the right direction of the arrow 24 and the pressing protrusion 22a protruding from the sensor base 22 comes into contact with the load switch 38, the load switch 38 is activated. The load switch 38 is activated, and based on the operation of the load switch 38, the rotation of the motor 32 in a predetermined direction is stopped, and at the same time, the motor drive circuit is switched between forward and reverse directions, and the pulse motor of the stage feed mechanism 17 is 18 is configured such that a drive signal is applied to rotate a drive shaft 19a in a predetermined direction by a predetermined angle corresponding to the step feed length of the knitting stitch through a gear device 19, whereby the sprocket 20 is rotated. The display sheet 10 is moved one step in the direction of an arrow 21. Also, the sensor base 22 is directed to the left by a counter-arrow 24.
When the pressing protrusion 22a protruding from the sensor base 22 comes into contact with the reset switch 39, the reset switch 39 is activated.
Based on the operation of Drive shaft 1 via 19
9a is rotated in a predetermined direction by a predetermined angle corresponding to the step feed length of the knitted stitch, and thereby the sprocket 20 causes the display sheet 10 to be further fed by one step in the direction of the arrow 21. It's summery. Now, 40 is a sensor as a reading member mounted on the sensor mounting plate 26, and as shown in FIG. The light reflected from the surface of the display sheet 10 and the front reflective surface of the receiving member 13 is received by the phototransistor 45, which is a photoelectric conversion element, through the light window hole 4 and the lens 44. Also, the light from the light emitting diode 46 is transmitted through the lens 47 and the small diameter light window hole 48.
The display sheet 10 is irradiated with light reflected from the surface of the display sheet 10 and the front reflective surface of the receiving member 13 through the light window hole 48 and the lens 49 to the phototransistor 50, which is a photoelectric conversion element. The light emitting diodes 41 and 46 are made of GaAs light emitting diodes that emit infrared light, and the phototransistors 45 and 50 are made of Si phototransistors having spectral sensitivity characteristics in the infrared light region. Become. Further, in order to prevent the light window hole 43 which is a substantial signal sensing portion of the phototransistor 45 from passing the reflected light from the display sheet 10 based on light emission from the light emitting diode 46, the substantial signal sensing portion of the phototransistor 50 is A light shielding portion 51 is provided between the light window holes 43 and 48 so that the light window hole 48 does not pass reflected light from the display sheet 10 based on light emission from the light emitting diodes 41. And the light window holes 43, 48
The interval (for example, 4.5 mm in this example) is set to be wider than the width of the outer line 14, which is a narrow signal, and narrower than the width of the picture pattern 15 and line 16, which are wide signals. (See Figure 9). In other words, the outline line 14 is drawn narrowly so that the picture pattern 15 and line 1
6 is widely depicted. Although FIG. 4 shows that there is a gap between the sensor 40 and the display sheet 10 for convenience, each roller that can move back and forth with respect to the sensor mounting plate 26 during actual reading operation. 29
The elastic force of a spring (not shown) that urges the display sheet 10 side is defeated by the swinging elastic force of the tension coil spring 30,
The display sheet 10 is scanned so that the light window holes 43 and 48 are in light contact with the surface of the display sheet 10. With the above configuration, when the sensor base 22 is moved in the left-right direction, that is, in the arrow 24 and counter-arrow 24 directions by the drive mechanism 31, the sensor 40 also signals an arbitrary stage of the display sheet 10. In this case, the receiving member 13 of the base frame 8
A sensor scanning line 13 is formed on the front reflecting portion of the sensor 40 so as to correspond to one row of the display sheet 10 to be scanned next.
A is drawn. In this case, this sensor scanning line 13
A is drawn in a chromatic color, for example red, that reflects infrared light that cannot be read by the senna 40. 52 is the left side of the base frame 8;
This is a slit plate installed between the right end plates, and this is the fifth plate.
As shown in the figure, it has a so-called comb-like shape with a large number of rectangular peaks and valleys alternately, and the left end is a continuous valley, which is referred to as region "O", and the right end is a comb-like shape. As a continuous peak, this is defined as area "301", and the peak located between these areas "O" and "301" is turned to the right to sequentially form areas "1", "3", " 5”,・
... "151", ... "299", and moving the valley toward the right, sequentially areas "2", "4", ...
・Set as "150", ... "300".

In this case, the areas "1", "3", ... "299
” and [2”, [4], ..... Each width dimension of "300" is, for example, 2.25W! It is set to l. Therefore, the boundary line 52a between the areas "150" and "151" of the slit plate 52 is on the same line as the center line (the line that cannot be read by the sensor 40) 10b of the display sheet 10. This is set so as to correspond to the central portion of the needle bed between the needle numbers "1" and "1", that is, the center portion of the needle bed with the number "0" on the needle bed 2 (see FIG. 3). Reference numeral 53 denotes a region signal detector, which will be described later, which is attached to the lower surface of the sensor base 22.

Reference numeral 54 denotes a control box attached to the upper surface of the sensor base 22, which is equipped with a discrimination circuit 55, which will be described later, etc., and sends each output signal to a signal realization circuit 56 fixedly disposed inside the signal processing unit 7. It is designed to be supplied via a flexible transmitting/receiving cord.

Reference numeral 57 denotes a display panel attached to the front surface of the base frame 8 (see FIG. 6), and on the top thereof, a left end needle display section 58a and a right end needle are provided at both left and right ends, which are composed of segment type liquid crystal display elements, etc. An end needle indicator 58 having a display portion 58b is attached, and a return push button 60 (marked with the character [return]) of a display selection circuit 59, which will be described later, is attached to the lower part of the end needle indicator 58. .

) and selection push buttons 61, 62, 63, and 64 (marked with the characters "1", "2", "3", and "4", respectively) that also serve as indicators, A buzzer 65 is attached to the right side of the push button 64. Now, the discrimination circuit 55 will be described with reference to FIG.

Reference numeral 66 denotes a power supply terminal to which a power supply voltage +V is applied, and between this power supply terminal 66 and the ground, there is a series circuit of a light emitting diode 41 and a resistor nail with the polarity shown, and a light emitting diode 46 and a resistor 68 with the polarity shown. are connected to the series circuit.

The collector of the phototransistor 45 is connected to the power supply terminal 66, and the emitter is grounded via a load resistor 69, and the collector of the phototransistor 50 is connected to the power supply terminal 66. The emitter is grounded via a load resistor 70. Further, the emitter, which is the output terminal of the phototransistor 45, is connected via an amplifier 71 and an inverter circuit 72 to a first input terminal of an AND circuit 74 for forming a first determination circuit 73.
The emitter serving as the output terminal of 0 is connected to the second input terminal of the AND circuit 74 via an amplifier 75 and an inverter circuit 76. The output terminal of the AND circuit 74 is connected to the first output terminal 55a. 77 and 78 are AND circuits whose first input terminals are respectively connected to the output terminals of the inverter circuits 72 and 76, and whose respective output terminals are connected to the first and second inputs of the OR circuit 79. The output terminal of this OR circuit 79 is connected to the set input terminal S of an RS type flip-flop circuit 81 via an inverter circuit 80, and the reset input terminal of this flip-flop circuit 81. R is connected to the output terminal of the AND circuit 74, the set output terminal Q is connected to the first input terminal of the AND circuit 82, and the second input terminal of the AND circuit 82 is connected to the output terminal of the OR circuit 79. and its output terminal is connected to the second output terminal 55b, thus configuring the second determination circuit 83.

84 is a delay type flip-flop circuit, the set output terminal Q of which is connected to the second input terminal of the AND circuit 78, and the reset output terminal Q connected to the second input terminal of the AND circuit 78.
7, the data input terminal D is connected to the output terminal of the light receiving element blade, and the clock pulse inversion input terminal CK is connected to the output terminal of the light receiving element 86.

Here, the light receiving elements 85 and 86 are connected to the area signal detector 53.
It is built in and corresponds to the slit plate 52 below the sensor base 22, and receives light from a light emitting element (not shown) facing the slit plate 52. When the light from each light emitting element is received through the valley of the slit plate 52, a high level output signal, that is, a logic signal "1" is generated, and the light from the light emitting element is cut off by the peak of the slit plate 52. When no light is received, a low level output signal, that is, a logic signal "O" is generated. The light receiving element 86 of the area signal detector 53 is arranged such that the center line of the sensor 40 (the intermediate position between the optical window holes 43 and 48) is located on the slit plate 5.
The light receiving elements 85 and 86 are arranged so that each of the boundary line portions of the peaks and valleys of 2 corresponds to each boundary line portion at the same time, and the distance between the center lines of these light receiving elements 85 and 86 is 5.625u.
Therefore, the center line of the light receiving element 86 is set to the boundary line between the peaks and valleys of the slit plate 52 (the logic signal is "0").
” to “1” or from “1” to “0”), the light-receiving element 85 detects the center of the peak or valley of the slit plate 52 (when the logic signal is “O” or “0”). This corresponds to the point in time when the value is "1").
Thus, the delay type flip-flop circuit 84 changes the output signal of the light receiving element 86 from the logic signal "1" to "O".
Clock pulse inversion input terminal C
A clock pulse is given to K, and when the output signal of the light receiving element 85 is a logic signal [1] at the time when this clock pulse is given, the output signal of the set output terminal Q becomes a logic signal [1], and when the clock pulse is given, the output signal of the set output terminal Q becomes a logic signal [1]. When the output signal of the light receiving element 85 is a logic signal "O" at the time when the reset output terminal Q is a logic signal "1", the output signal of the reset output terminal Q is a logic signal "1".
This is the result. On the other hand, the signal implementation circuit 56 will be described with reference to FIG.

87 is a reversible counter whose input terminal is connected to the output terminal of the area signal detector 53 (output terminal of the light receiving element 86), which means that the output signal of the light receiving element 86 is a logic signal "1". When the logic signal "O" falls to "O" and when the logic signal "O" rises to [1], area pulses are applied to perform counting, and the direction signal from the area signal detector 53 is applied. Based on this, the sensor i base 22, the sensor 40 and the area signal detector 53 are moved in the right direction by arrow 2.
When the load switch 3 is moving in the four directions, an addition operation is performed, and when the load switch 3 is moving in the opposite direction of the arrow 24, a subtraction operation is performed.
When 8 is activated, the count is forcibly set to ``301''.
When the reset switch 39 is activated, the count is forcibly reset to "O".

Reference numeral 88 denotes a selection write circuit, whose first and second input terminals 1a and Ib are connected to the first and second output terminals 55a and 55b, respectively, of the discrimination circuit 55, and whose information input terminal 1c is connected to the counter. The selection input terminal 1d is connected to the output terminal of the outer mold selection circuit 89.

This external mold selection circuit 89 is equipped with a selection switch 90, and when the selection switch 90 is selected to the a side, for example, it generates an all selection signal, and when the selection switch 90 is selected to the b side, it generates a left selection signal. occurs and the selection switch 9
When 0 is selected on the c side, a right side selection signal is generated and applied to the selection input terminal 1d of the selection write circuit 88, respectively. The first output terminal 0a of the selection write circuit 88 is connected to the input terminal of the external memory circuit 91, and the second output terminal 0b is connected to the input terminal of the pattern memory circuit 92. Here, the selection write circuit 88 targets one stroke of movement of the sensor 40 in the arrow 24 direction or in the opposite direction when an all selection signal is applied to the selection input terminal Id. The area number is calculated from the first output terminal Oa to the external memory circuit 91 after correction, which will be described later, based on the count contents of the counter 87 at the first and last points when the input signal is applied to the second input terminal 1b. When the left side selection signal is applied to the selection input terminal 1d, the count content of the counter 87 changes from [1] to [15U] when the sensor 40 moves in the right direction.
Further, the count contents of the counter 87 at the first and last points when the input signal is applied to the second input terminal 1b between "1" and "149" during leftward movement will be described later. After correction, it is applied to the external memory circuit 91 from the first output terminal 0a for storage, and when the right selection signal is applied to the selection input terminal 1d, the counter 87 is input when the sensor 40 moves in the right direction. The count content is "152"
to "300", or "150" when moving to the left.
The counter 8 at the first and last points in time when the input signal is applied to the second input terminal 1b between "300" and "300"
After the same correction based on the count contents of 7, the first output terminal 0
A is applied to the external memory circuit 91 for storage, and an input signal is applied to the second input terminal 1b in relation to the all, left and right selection signals applied to the selection input terminal 1d. When an input signal is applied to the first input terminal 1a between the first and last output signal regions of the time,
Each time, the count contents of the counter 87 corresponding to the first and last areas of the continuous area in which the input signal existed are fed as they are from the second output terminal 0b to the pattern etc. memory circuit 92 and are sequentially stored. . Therefore, when the sensor 40 in this example moves in the rightward direction of the arrow 24 or in the leftward direction opposite to the arrow 24, the second output terminal 55b of the discrimination circuit 55 outputs a signal. The knitting width instruction signal (narrow width signal) is
This is always when the rear optical apertures 43 and 48 in the moving direction of the sensor 40 correspond to the outer mold line 14, and for this reason, when the sensor 40 moves left and right for a wide signal, both the optical apertures 43 and 48 correspond to the outer shape line 14.
This results in a shift equivalent to a distance of 48. In order to solve this problem, the selection writing circuit 88 calculates the distance from the center line of the sensor 40 to the light window hole 48 when the sensor 40 moves in the rightward direction of the arrow 24, that is, the distance from the slit plate 52.
The area of - which matches the area width dimension of (2.25WlI!)
is subtracted from the contents of the counter 87 at the above-mentioned first and last points, and when the sensor 40 moves in the counter-arrow 24 direction, which is the left direction, the optical window hole 4 is subtracted from the center line of the sensor 40.
The same negative area (2.25l1), which is the distance to 3, is added to the contents of the counter 87, and the contents of the counter 87, which is the area number after each calculation correction, are stored in the external memory circuit 91. . 93 is an arithmetic control circuit;
The first and second input terminals 1a and Ib are connected to the output terminals of the external memory circuit 91 and the pattern memory circuit 92, respectively, and the selection input terminal 1c is connected to the display selection circuit 59.
At the same time, the first output terminal 0a is connected to the buzzer 65 and the selection push buttons 61 to 64 which also serve as indicators, and the second output terminal 0b is connected to the input terminal of the arithmetic circuit 94. It is connected to Ia.

Here, the arithmetic control circuit 93 connects the external memory circuit 91 to the first input terminal 1a, regardless of the display selection circuit 59.
When the stored contents are given as an input signal with an outline line, this is given to the arithmetic circuit 94 from the second output terminal 0b. Further, when the memory contents of the pattern etc. memory circuit 92 are given to the second input terminal 1b as an input signal with a pattern etc., the arithmetic control circuit 93 outputs the output from the first output terminal 0a.
An output signal is generated from the buzzer 65 to make it sound for a short time, and an output signal is given to the lamp enclosed in the selection push button 61 marked with the character "1" to light it up. ing. Furthermore, when a plurality of pattern etc. signals are generated from the first input terminal 1a of the discriminating circuit 55 and the pattern etc. memory circuit 92 stores a plurality of pairs of area numbers based on the signals, the arithmetic control circuit 93 calculates the logarithm thereof. The lamp of the selection push button to which the numerical character corresponding to the button is attached lights up. Therefore, when the pattern etc. memory circuit 92 stores four pairs of area numbers, all the lamps of the selection push buttons 61 to 64 will be lit. Here, when the sensor 40 is moved in the rightward direction of the arrow 24, the outer shape memory circuit 91 first stores the area number corresponding to the outer shape line located on the left side of the display sheet 10.
Conversely, when the sensor 40 is moved to the left in the opposite direction of the arrow 24, the area number corresponding to the outer shape line located on the right side of the display sheet 10 is first stored, but the arithmetic control circuit 93 -40 movement direction information is given from the region signal detector 53, for example, and the region number corresponding to the outer mold line located on the left side is always given first to the input terminal 1a of the arithmetic circuit. Also, in the pattern etc. memory circuit 92, similarly to the outer shape memory circuit 91, the area number stored first differs depending on the moving direction of the sensor 40, but even in this case, the arithmetic control circuit 93 performs the When the selection buttons 61 to 64 are pressed, the area number corresponding to the left side outline of the pattern etc. is always selected first at the input terminal of the arithmetic circuit 94 based on the movement information of the sensor 40, as in the case of the outside outline. It is now being given to 1a. Furthermore, the arithmetic control circuit 93 includes a pattern etc. memory circuit 92.
If the sensor stores multiple pairs of area numbers,
When the selection push button 61 with the character "1" is pressed without being specified in the movement direction of 40, the calculation circuit 9 always calculates the leftmost pair of area numbers on the display sheet 10.
4 input terminal 1a, and similarly "2", "3" and [
When the selection buttons 62, 63, and 64 marked with "4" are sequentially pressed, the second, third, and fourth pair of area numbers from the left are sequentially applied to the input terminal 1a of the arithmetic circuit 94. When the return push button 60 with the character "return" is pressed, the area number stored in the external memory circuit 91 is again given to the input terminal 1a of the arithmetic circuit 94. It's summery. On the other hand, the output terminal 0 of the arithmetic circuit 94 is connected to the result memory circuit 95.
information input terminal 1.
b is connected to the output terminal of the gauge information memory circuit 96. The input terminal of this gauge information memory circuit 96 is connected to a number key 97, so that width information based on the stitch gauge obtained by trial knitting is given. The circuit 96 is adapted to store the size of knitted stitches in terms of the number of stitches per fixed length of the knitted work or the numerical value of the length per fixed number of stitches. Thus, the arithmetic circuit 94 inputs the area number as information each time the area number that is the storage content of the outer mold memory circuit 91 and the area number that is the storage content of the pattern etc. memory circuit 92 is given to the input terminal 1a. The stitch size stored in the gauge information memory circuit 93 provided to the input terminal 1b is used to calculate the needle number on the needle bed 2, and the number is sequentially generated as an output signal at the output terminal 0. The output signal from the output terminal 0 is applied to the input terminal of a result memory circuit 95, and the result memory circuit 95 is configured to sequentially store the needle number and left/right discrimination. 9
8 is a display control circuit, the input terminal 1 of which is connected to the output terminal of the result memory circuit 95, and the first output terminal 0a connected to the needle indicator 58.

This display control circuit 98 is connected to a result memory circuit 95.
The needle number, which is the memory content given to the input terminal 1 from The end needle number is numerically displayed on the right end needle display section 58b, but in this case, in order to distinguish between the needle number on the left side or the needle number on the right side of the center of the needle bed, each display section 58a, 58b is displayed numerically. " is added to the lower right of the lower digit of
In this embodiment, for example, when displaying needle number "50", if this is the needle number to the right of the center of the needle bed, "50.1" is displayed.
When the needle number is on the left, it lights up as "50" and does not light up. Next, the operation of this embodiment having the above configuration will be explained.

First, the operation of the discrimination circuit 55 will be described.

Now, as the sensor base 22 moves, the sensor 40
When scanning one stage of the display sheet 10, the infrared light from the light emitting diodes 41 and 46 is irradiated onto the display sheet 10 through the lenses 42, 47 and the light apertures 43, 48, respectively. Therefore, if none of the outline line 14, the picture pattern 15, and the line 16 are present in the part of the display sheet 10 scanned by the sensor 40, the infrared light irradiated onto the display sheet 10 will not touch the corresponding area. It is reflected by the surface of the display sheet 10 and the front reflective part of the receiving member 13, and the light emitting diode 4
The infrared light reflected from the display sheet 10 etc. based on the light emission from the light emitting diode 46 is received by the phototransistor 45 via the light window hole 43 and the lens 44, and is reflected from the display sheet 10 etc. based on the light emission from the light emitting diode 46. The infrared light is transmitted to a phototransistor 50 via a light window hole 48 and a lens 49.
Therefore, both phototransistors 45 and 50
are both effectively photoexcited, and the voltages across the load resistors 69 and 70, which are these output signals, become high level signals, that is, logic signals [1]. And phototransistor 45
and 50 are given to the inverter circuits 72 and 76 via the agars 71 and 75, respectively.
The inverter circuits 72 and 76 both output signal "O"
The output signals "O" of these inverter circuits 72 and 76 are outputted to the first and second output signals of the AND circuit 74.
Since the output signal of the AND circuit 74 is "O", the output signal of the first output terminal 55a is also "0".
Also, the output signals of the inverter circuits 72 and 76 "O
" are given to the first input terminals of AND circuits 77 and 78, respectively, so the output signals of AND circuits n and 78 are "0".
The output signal of the OR circuit 79 is also "O", therefore the output signal of the AND circuit 82 is "O", and the output signal of the second output terminal 55b is also "O". By the way, as the sensor base 22 moves, the sensor 40 changes to the display screen,
When the slit plate 10 is scanned, the area signal detector 53 also scans the slit plate 52 in the same direction.
The light-receiving elements 85 and 86 of the area signal detector 53 sequentially correspond to the troughs and peaks of the slit plate 52, and read "1" and "O".
generates an output signal. When the sensor 40 is moved and scanned in the rightward direction of the arrow 24, the output signal of the light receiving element blade of the area signal detector 53, which is moved in the same direction, changes from "1" to "O". The clock pulse inversion input terminal CK of the flip-flop circuit 84
The output signal of the light receiving element 85 is always "1" at the time when the clock pulse is applied to the clock pulse, and this is applied to the data input terminal D of the flip-flop circuit 84.
The output signal at the set output terminal Q of the flip-flop circuit 84 becomes "1", and this output signal [1] is applied to the second input terminal of the AND circuit 78. When moving and scanning in the direction of the arrow 24, the output signal of the light receiving element 86 of the area signal detector 53 moved in the same direction changes from "1" to "0".
” falls and a clock pulse is applied to the clock pulse inversion input terminal CK of the flip-flop circuit 84, the output signal of the light receiving element 85 is always “0”, and this is applied to the data input terminal D of the flip-flop circuit 84. , the output signal of the reset output terminal Q of the flip-flop circuit 84 becomes [1], and this output signal [1] is applied to the second input terminal of the AND circuit 77. Therefore, the sensor 40 is displayed on the display sheet 1.
0 in the direction of the arrow 24, a picture pattern 15 (the same applies to the line 16), which is a wide signal, exists in the part of the display sheet 10 scanned by the sensor 40, as shown in FIG. 9a. In this case, by moving the sensor 40, the light window hole 4, which is the signal sensing portion of the phototransistor 45, is first opened.
3 corresponds to this picture pattern 15, the infrared light from the light emitting diode 41 is absorbed by the picture pattern 15 drawn with black ink and is not reflected, so the phototransistor 45 receives the infrared light. It is no longer effectively photoexcited, and its output signal is a low level signal, ie, a logic signal "O". The output signal [0] of this phototransistor 45 is given to the inverter circuit 72 via the amplifier 71, so that
The output signal of the inverter circuit 72 becomes [1] as shown in FIG. 10a. Since the distance between the light window holes 43 and 48 is set to be smaller than the width of the picture pattern 15, the light window hole 48, which is the signal sensing portion of the phototransistor 50, also corresponds to the picture pattern 15. I started to
The output signal of the 7-ototransistor 50 is also [0
”, and as shown in FIG. 10b, the inverter circuit 76
The output signal of is also [1]. As a result, the 2-AND circuit 74 has both the input signals of the first and second input terminals "1".
”, the output signal becomes “1”, and the first determination circuit 73
The first output terminal 55a, which is an output terminal of
1” is generated. Furthermore, the output signal of the AND circuit 74 is
1] is the reset input terminal R of the flip-flop circuit 81.
and when the area signal detector 53 is moved in the rightward direction of the arrow 24, the flip-flop circuit 84 outputs a set output signal "1" from the set output terminal Q.
'' is given to the AND circuit 78, so the output signal [1] of the inverter circuit 76 is given to the inverter circuit 80 via the AND circuit 78 and the OR circuit 79, and becomes the output signal of the inverter circuit 80. is Figure 10d
As shown by , it becomes [0] and is applied to the set input terminal S of the flip-flop circuit 81, so that the flip-flop circuit 81 enters the reset state and the set output terminal Q
The set output signal of is [0] as shown in FIG. 10e, and therefore the output signal of the AND circuit 82 is also [0], and the output signal of the second output terminal 55b is "0" as shown in FIG. 10f.
O”. As described above, the flip-flop circuit 8
1 is always in the set state and its set output signal is [
However, when the output signal "1" is generated at the first output terminal 55a, it is inverted to the reset state and the set output signal becomes "O". This reset state of the flip-flop circuit 81 continues until the optical window 48 no longer corresponds to the picture pattern 15.
Further, when the sensor 40 scans the display sheet 10 in the direction of the arrow 24, an outer shape line 14 serving as a narrow signal is formed on the portion of the display sheet 10 scanned by the sensor 40 as shown in FIG. 9b. If there is, the movement of the sensor 40 causes the optical window hole 43 to correspond to this outer mold line 14, and the output signal of the phototransistor 45 becomes "O", so that the output signal of the inverter circuit 72 becomes "O". becomes "1" as shown in FIG. 10a. After that, the light window hole 48 is also connected to the outside line 14.
In response to this, the output signal of the phototransistor 50 becomes "O".
The output signal of the inverter circuit 76 becomes [1] as shown in FIG. Therefore, at the time when the optical window hole 48 corresponds to the outer mold line 14 and the output signal of the inverter circuit 76 becomes "1", the optical window hole 43 no longer corresponds to the outer mold line 14 and the inverter circuit The output signal of the AND circuit 72 is "0", therefore the output signal of the AND circuit 74 is "O", and the output signal of the first output terminal 55a is "O" as shown in FIG. 10c. As a result, the flip-flop circuit 81 remains in the set state without being reset, and the set output signal is "1" as shown in FIG. 10e, which is applied to the first input terminal of the AND circuit 82. In addition, the inverter circuit 7
The output signal “1” of 6 is an AND circuit 78 and an OR circuit 79.
is applied to the second input terminal of the AND circuit 82 via the AND circuit 82, so the AND circuit 82 produces an output signal "1", and therefore the second output terminal 5, which is the output terminal of the second determination circuit 83,
5b generates an output signal "1" indicating that there is a knitting width instruction signal which is a narrow width signal, as shown in FIG. 10f. Note that the outline line 1 when the sensor 40 and the area signal detector 53 scan the display sheet 10 and the slit plate 52 in the counter-arrow 24 direction to the left as the sensor base 22 moves.
4. The reading operation of the picture pattern 15 and the line 16 is such that when the area signal detector S is moved in the opposite direction of the arrow 24, the flip-flop circuit 84 outputs a reset output signal [ from the reset terminal Q].
1'' is generated and given to the AND circuit 77.The following is almost the same as described above, and waveform diagrams of each part corresponding to FIGS. 10a to 10f are shown in FIGS. 11a to 11f, and details are omitted. do. Next, a signal implementation circuit 5 connected to this discrimination circuit 55
The effect of No. 6 will be explained below.

First, when knitting is performed using the display sheet 10,
The lower end of the display sheet 10 is introduced into the sheet introduction part 12, and the engagement hole 10a is inserted into the sprocket 20 of the stage feeding mechanism 17.
The display sheet 10 is engaged with the pawl 20a of the display sheet 10 by an appropriate number of steps in the direction of the arrow 21 by manually operating the step feed mechanism 17, and the sensor scanning line 13a of the receiving member 13 below the outline line 14 of the display sheet 10 is moved. The selection switch 90 is set to the a side, and the all selection signal is applied from the outer mold selection circuit 89 to the selection input terminal 1d of the selection write circuit blade. Therefore, if the carriage 5 is now reversely moved, for example from the left direction to the right direction, the drive mechanism 31 moves the sensor base 22 in the right direction based on a carriage reversal signal from a carriage reversal detector (not shown). Accordingly, as shown in FIG.
0 also scans one stage of the display sheet 10 corresponding to the sensor scanning line 13a in the direction of the arrow 24, and the area signal detector 53 also scans the slit plate 52 in the direction of the arrow 24. and,
When the area signal detector 53 starts scanning the slit plate 52 in the direction of the arrow 24, the light receiving element 8 of the area signal detector 53 starts scanning.
6 corresponds to the valleys and peaks of the slit plate 52 [1],
Since an output signal of [0] is generated and a region pulse is given to the input terminal of the counter 87 at the rising and falling portions of the output signal, the counter 87 changes from "O" to [1] to "2".
”, [3”, . . . , the addition counting operation is performed. In this way, when the sensor 40 scans the left side part 141 of the outline line 14 on the display sheet 10, this left side part 1
41 is narrow, the discrimination circuit 55 generates an output signal P1, which is an output signal "1" with a knitting width instruction signal, from the second output terminal 55b, and sends this to the second input of the selective writing circuit 88. It is applied to terminal 1b. If the time point at which this output signal P1 is generated is in the area "51" of the slit plate 52, the count content of the counter 87 at this time is "51",
The selection write circuit 88 subtracts "1" from this count and then outputs "50" from the first output terminal 0a to the external memory circuit 9.
Give it to 1 and have it memorized. The memory content [50] of this external memory circuit 91 is the first input terminal 1a of the arithmetic control circuit 93.
given to. Then, when the arithmetic control circuit blade determines that the memory content "50" from the external memory circuit 91 given to the first input terminal 1a is the first output signal area in one stroke of the sensor 40, the memory content "50" is applied to the input terminal 1a of the arithmetic circuit 94 as an input signal. By the way, when knitting works using a hand knitting machine,
First, trial knitting is performed using the knitting yarn used for the knitting, and the stitch gauge is measured. That is, the number of stitches per certain length or the numerical value of the length per certain number of stitches differs depending on the knitting yarn used. In this example, the stitch gauge of trial knitting using the knitting yarn used for knitting was 40 stitches and 120 m.
If it is dew, this width information is stored in the gauge information memory circuit 96 by the numeric key 97, and furthermore, this stored width information is applied to the information input terminal 1b of the arithmetic circuit 94. Therefore, the arithmetic circuit 94 is the arithmetic unit 94
Based on the memory content [50] given from 3, the center line 10b of the display sheet 10, that is, the boundary line 52 of the slit plate 52.
151-50= so that a is the area based on "O"
101, and since the width of the peaks and valleys of the slit plate 52 is 2.25mm, it is 101X2.25222.
7.25W! I! The actual size of the knitted work to be knitted is calculated, and then the memory content of the gauge information memory circuit 96 is 40 stitches 120ml or 1 piece 227.25 ÷? = 75.75 and the number of knitting needles 3 necessary for knitting AΔ of the knitting work In other words, calculate the needle number counting left from number [0], especially the above 75
．． If a fraction below the decimal point occurs, such as 75, it is rounded up to calculate 76, and this is stored in the result memory circuit 95.

As a result, the content stored in the memory circuit 96 is "7".
6'' is given to the input terminal 1 of the display control circuit 98, and the display control circuit 98 supplies this to the end needle display 58 from the first output terminal 0a, and the left end needle display section 58a
is displayed numerically as [76]. On the other hand, the sensor 40
As shown in FIG. 2, when the picture pattern 15 on the display sheet 10 is scanned, since the picture pattern 15 is wide, the discrimination circuit 55 outputs an output signal "1" from the first output terminal 55a indicating that there is a knitting pattern signal, etc. An output signal P2 is generated and applied to the first input terminal 1a of the selective write circuit 88. If the generation and disappearance points of this output signal P2 are in areas "60" and "63" of the slit plate 52, respectively, then the count content of the counter 87 at the husband's time is "
60'' and ``63'', and the selection write circuit 88 sequentially supplies the counted contents ``60'' and ``63'' directly from the second output terminal 0b to the pattern etc. memory circuit 92 for storage. Memory contents of the memory circuit catfish such as this pattern "60" and "6"
3'' is applied to the second input terminal 1b of the arithmetic control circuit 93, so the arithmetic control circuit 93 generates an output signal from the first output terminal 0a, and gives this to the buzzer 65 to make it sound. This is applied to the lamp in the selection push button 61 marked with the character "1" to turn on the lamp. Furthermore, when the sensor 40 scans the right side part 14,o of the outline line 14 on the display sheet 10 as shown in FIG. 12, since this right side part 141o is narrow, the discrimination circuit 55 An output signal P2, which is an output signal "1" with a knitting width instruction signal, is generated from the output terminal 0b of the
is applied to input terminal 1b of . If the point at which this output signal P3 disappears is in the area "252" of the slit plate 52, then the count content of the counter 122 at this time is "252".
The selection write circuit 88 subtracts this count content by "1" and then supplies "251" from the first output terminal 0a to the external memory circuit 91 to store it, and further adds this stored content "251" to the external memory circuit 91 for storage.
51'' is applied to the first input terminal 1a of the arithmetic control circuit 93. When the arithmetic control circuit 93 determines that the stored content "251" from the external memory circuit 91 is the last output signal area at the end of one stroke of the sensor 40, it outputs this from the second output terminal 0b. It is applied as an input signal to the input terminal 1a of the arithmetic circuit 94. Therefore, the arithmetic circuit 94
is the center line 10b of the display sheet 10, that is, the slit plate 52, based on the memory content "251" given to the input terminal 1a.
2 so that the area is based on the boundary line 52a of
51-1502101, and in the same way as above, the number of knitting needles 3 required for knitting the knitted work.In other words, the needle number counted from the number "O" to the right is calculated as "76", and this is the result. It is stored in the memory circuit 95 as the right needle number. and,
As a result, the content "76" stored in the memory circuit 95 is given to the input terminal 1 of the display control circuit 98, and the display control circuit 98 starts giving this to the needle indicator 58 from the first output terminal 0a. In addition, considering that it is the right needle number, the rightmost needle display section 58b displays a numerical value of "76".
When the pressing protrusion 22a of the sensor base 22 comes into contact with the load switch 38 and activates it after completing one stroke of scanning in the four directions, the stage feed mechanism 17 is activated based on the operation of the load switch 38. arrow 21 to display sheet 10
Move one step in the direction. Therefore, the user should look at the display panel 57 after moving the carriage 5 to the right and before reversing it to the left. All the knitting needles 3 located between the knitting needle 3 numbered ``76'' on the left side and the knitting needle 3 numbered ``76'' on the right side are in the standby position for knitting the ground knitting, and these are the knitting needles that should be involved in knitting. shall be. Furthermore, considering that the buzzer 65 sounded, the user knew that there was a picture pattern 15 etc. because the lamp of the selection push button 61 with the character "1" was lit. The selection push button 6
1 is pressed, the display selection circuit 59 gives a selection signal to that effect to the selection input terminal 1c of the arithmetic control circuit 93, so the arithmetic control circuit 93 displays the content "60" stored in the pattern memory circuit 92. and [63] are applied to the input terminal 1a of the arithmetic circuit 94. And the arithmetic circuit 9
4 is the same as above, and the needle number required for the pattern stitch is [60
” and “66”, which are given to the result memory circuit 95 and stored. As a result, the pair of contents "69" and "66" stored in the memory circuit 95 are stored in the display control circuit 98.
The display control circuit 98 now supplies the pair of stored contents "69" and "66" to the needle indicator 58 from the first output terminal 0a. The end needle indicator 58 displays a numerical value of "69-66". Then, the user looks at this numerical display "69-66" and moves the knitting needles 3 from numbers [69] to [66] on the left side of the center of the needle bed 2 to make pattern stitches further from the knitting waiting position of the ground knit. The system should be pulled out to the waiting position. In addition, the sensor
40, the second output terminal 55b of the discrimination circuit 55 generates an output signal indicating that there are a plurality of patterns 15, etc., and in response to this, the pattern memory circuit 92 detects a plurality of pairs of areas. If the number is memorized, the lamps in the selection push buttons 61 to 64 will be lit in response to the output signal from the first output terminal 0a of the arithmetic control circuit 93. Therefore, if the user presses these selection buttons 61 to 64 in sequence, the arithmetic circuit 9
4. Through the result memory circuit 95 and the display control circuit 98, the needle numbers of each pair corresponding to the plurality of patterns 15, etc. are sequentially numerically displayed on the end needle display 58, and the user can Zi≦ between the needle numbers corresponding to the picture pattern 15 among the needle numbers of , the knitting needles 3 are pulled out to the expected knitting position of the pattern stitches, and when the display sheet 10 is observed and the pocket signal is determined, The operations necessary for pocket formation are performed on the knitting needles 3 between the needle numbers corresponding to the line 16.

When the carriage 5 is moved leftward in this manner, the knitting needles 3 pulled out as described above are used to knit the ground stitches and pattern stitches, or to form the pocket opening. Further, the sensor base 2 is detected based on a carriage reversal signal from a carriage reversal detector (not shown) that is generated when the carriage 5 is reversely moved from the right direction to the left direction.
2 is moved to the left by the drive mechanism 31, in the direction opposite to the arrow 24, so that the sensor 40 scans a new row of the display sheet 10 in the direction opposite to the arrow 24, and detects the outline line 14 and At the same time as reading the picture pattern 15, the area signal detector 53 also scans the slit plate 52 in the opposite direction of the arrow 24, and at this time the counter 87 changes from "301" to "300" to "299" to "298". ”
,..., the subtraction operation is performed.
If the sensor 40 scans the lower part of the left sleeve lower part 142 in the direction of the arrow 24 as shown in FIG. If the lower part 142 is drawn as a continuous line as shown by the two-dot chain line, the discrimination circuit 55 determines that
The first output terminal 55a is determined as a wide line as shown in FIG.
There is a problem in that the output signal "1" is generated because there is a pattern, etc., but in this embodiment, the left sleeve cleft part 142 is formed into stepwise and discontinuous lines 1421, 1422, 1423, . . .
. . , so there is no problem as described above. Therefore, in the case shown in FIG. Output signal “1” with knitting width instruction signal from 55b
An output signal P4 is generated, and as a result, the external memory circuit 91 stores the area number [50]. Also, the sensor 40 is connected to the lines 1421, 1422, 1423, . . . of the left sleeve lower part 142 in FIG.
When scanning sequentially in different stages,
Since the knitting width is different from that of the previous stage (the stage knitted by the carriage 5), the lines 1421, 1422, 14
When the needle number force corresponding to 23, .
This signal is given to the buzzer 65 to notify that a needle number different from that in the previous stage will be displayed, and the buzzer 65 is sounded. Thereafter, the sensor 40 detects the outer shape line 14 of the display sheet 10.
When the time has come to scan the center of the collar (this means that the intersection of the left collar 14 and the right collar 146 of the outer mold line 14 is located on the sensor scanning line 13a of the receiving member 13). ), selection switch 90
is selected to the b side, and the left side selection signal is applied from the outer mold selection circuit 89 to the selection input terminal 1d of the selection write circuit 88. Therefore, the selection write circuit 88 changes the count content of the counter 87 from [1] to "when the sensor 40 moves rightward.
151'', and also from ``1'' to ``1'' when moving to the left.
49'', the second output terminal 55b of the discrimination circuit 55
The area number is stored in the outer form memory circuit 91 based on the output signal with the knitting width instruction signal generated from The area number of the signal area is given to the arithmetic circuit 94. In this case, when the selection write circuit 88 is supplied with the left selection signal, the selection write circuit 88 selects the second
The center line 1 of the display sheet 10 given to the input terminal 1b of
The counted contents of the counter 87 are stored in the pattern memory circuit 92 only for the knitting pattern signal applied to the first input terminal Ia between the first and last output signal areas of the knitting width instruction signal generated from the left side of 0b. For example, the right collar section 14 of the display sheet 10
Even if a picture pattern 15 is drawn on the right side of 6, the area number corresponding to this is not stored in the pattern etc. memory circuit 92. In this way, the sensor 40 scans and the carriage 5 reaches the intersection of the left shoulder part 144 and the left collar part 145 of the outline line 14 on the display sheet 10.
When knitting is completed, the display sheet 10 is manually moved back to a position where the sensor 40 scans the intersection of the left lapel part 14 and the right lapel part 14,
If the c side of the selection switch 90 is selected and the right side selection signal is applied from the outer mold selection circuit 89 to the selection input terminal 1d of the selection writing circuit 88, and the carriage 5 is repeatedly moved in the left and right direction in the same manner as described above, this time, The selection writing circuit 88 is configured such that the count content of the counter 87 is [15] when the sensor 40 moves in the right direction.
2” to “300”, and “1” when moving to the left.
The area number is stored in the outer shape memory circuit 91 based on the output signal with the knitting width instruction signal generated from the second output terminal 55b of the determination circuit 55 between "50" and "300". In this example, the selective write circuit 88 is
The area of the signal output from the first output terminal 55a of the discrimination circuit 55 in response to sensor scanning of the picture pattern 15 and line 16, which are wide signals, is the picture pattern 15 drawn on the sheet 10,
Considering that both the left and right edges are smaller than the line 16 by the width of the area (see Fig. 12), the count contents of the counter 87 at the time of the first and last signal generation are stored as they are in the memory of the pattern, etc. For example, when the count contents are "60" and "63" without being stored in the circuit 92, "1" is subtracted from the first count contents, and [1 is subtracted from the last count contents. ” The result obtained by adding “5
9" and "60 may be stored in the pattern etc. memory circuit 92. According to this, the picture pattern 15 and the line 16 can be realized with extreme fidelity.As described above, according to this embodiment, On a colorless transparent or white semi-transparent display sheet 10, the outer shape line 14 of the front body of a sweater, which is a knitted work, is drawn as a narrow signal with black ink, and a picture pattern 15 and a pocket opening line 16 are inserted into this. etc. are drawn in black ink as a wide signal, and the display sheet 10 is scanned by the sensor 40, so that the outer shape line 14, the picture pattern 15, and the line 16 are distinguishable by the discrimination circuit 55, that is, they are different. The signal is read as an output signal from the output terminal, and is organized into an end needle indicator 58 by a signal embodying circuit 56.
The needle number required for pocket opening formation, etc. is appropriately expressed, and the user can use the needle number 57 of the display.
The knitting width, the pattern stitches, the knitting needles 3 required for forming the pocket opening, etc. can be easily determined by simply pressing the selection buttons 61 to 64 as appropriate.

Moreover, in this embodiment, since the outer mold line 14, the picture pattern 15, and the line 16 on the display sheet 10 are photoelectrically read by the sensor 40, Poor contact, such as in the well-known implementation device Z5, which records lines, pictures, etc. as conductive parts, and reads the outer lines, pictures, etc. by sliding a number of brush members on the signal recording member. No problems such as wear occur, and the reading process of the outer mold line 14, the picture pattern 15, and the line 16 can be performed reliably, and a long life can be achieved.

In addition, in this embodiment, if the user draws desired outline lines and patterns on the colorless transparent or white translucent display sheet with black ink, this will be automatically and reliably read and the needle number will be displayed. It is extremely convenient because various knitted works can be knitted as desired. In the above embodiment, the carriage 5 is provided with a plurality of electromagnets for needle selection, and by giving output signals from the display control circuit 98 to these electromagnets, the needle selection can be performed as the carriage 5 moves in the left-right direction. It is also possible to implement an automatic needle selection device so that the knitting needles 3 corresponding to the outer pattern line 14 are automatically pulled out to the knitting waiting position of the ground knitting.

14 to 16 show a second embodiment of the present invention,
In particular, the same parts as in FIGS. 7, 10, and 11 of the embodiment described above are indicated by the same reference numerals, and only the different parts will be explained below.

FIG. 14 shows a discrimination circuit 99 used in place of the discrimination circuit 55 in the embodiment.

That is, 100 is an AND circuit for forming the first determination circuit 101, the first and second input terminals of which are connected to the output terminals of the inverter circuits 72 and 76, respectively.
The output terminal is connected to a first output terminal 99a. 1
02, 103 are monostable multivibrator circuits, 104
is an inverter circuit, 105 and 106 are AND circuits, 10
7 is an RS type flip-flop circuit, and a second determination circuit 108 is formed by these.

That is, the input terminal of the monostable multivibrator circuit 102 is connected to the output terminal of the inverter circuit 76, and the output terminal is connected to the first input terminal which is the normal input terminal of the AND circuit 105. The input terminal of the circuit 103 is connected to the output terminal of the inverter circuit 76 via the inverter circuit 104, and the output terminal is connected to the first input terminal of the AND circuit 106. The second input terminal of the AND circuit 105, which is an inverted input terminal, is connected to the output terminal of the AND circuit 100, and the output terminal is connected to the set input terminal S of the flip-flop circuit 107. The input terminal of the flip-flop circuit 107 is connected to the set output terminal Q of the flip-flop circuit 107, and its output terminal is connected to the second output terminal 99b, and the reset input terminal R of the flip-flop circuit 107 is connected to the output terminal of the AND circuit 100. It is connected to the.

The operation of this discrimination circuit 99 will now be described with reference to FIGS. 4 and 9 in the embodiment described above.

If the outline line 14, the picture pattern 15, and the line 16 (see FIG. 3) do not exist in the portion of the display sheet 10 scanned by the sensor 40, the output signals of the inverter circuits 72 and 76 are both continuous. is "O", the output signal of the AND circuit 100 is also "O", therefore, the output signal of the first output terminal 99a is "O", and the output signal of the inverter circuit 76 is "0" continuously. ”, the output signal of the inverter circuit 104 becomes “1” continuously, and as a result, the output signal of the monostable multivibrator circuit 103 is “O” and the output signal of the AND circuit 106 is also “O”. ,
Therefore, the output signal of the second output terminal 99b is "O". Now, when the sensor 40 is scanning in the rightward direction of the arrow 24, if a picture pattern 15 exists in the part of the display sheet 10 scanned by the sensor 40 as shown in FIG. The output signal of the circuit 72 becomes "1" as shown in FIG. 15a, and then the output signal of the inverter circuit 76 becomes "1" as shown in FIG. 15b. Then, since the AND circuit 100 generates the output signal "1" at the portion where the output signals "1" of both inverter circuits 72 and 76 overlap, the first output terminal 99a has a knitted pattern as shown in FIG. 15c. There is an output signal as "
1. The output signal [1] from this AND circuit 101 is applied to the reset input terminal R of the flip-flop circuit 107 and also applied to the second input terminal of the AND circuit 105, so that the flip-flop circuit 107 enters the reset state. The set output signal of the set output terminal Q becomes [0] as shown in FIG. 15g, and therefore the output signal of the AND circuit 106 is also "O" and the output signal of the second output terminal 99b also becomes "0" as shown in FIG. 15h. As shown in “
O”. Now, when the sensor 40 is being scanned in the direction of the arrow 24, if the outline line 14 exists in the part of the display sheet 10 that the sensor 40 scans as shown in FIG. Circuit 72 is the 15th
The inverter circuit 76 produces an output signal "1" as shown in FIG.
will occur.

However, at the time when the inverter circuit 76 generates the output signal "1", the output signal of the inverter circuit 72 is "O", so the output signal of the AND circuit 100 is "O" and the first output signal is also "O". As shown in Figure 15c,
O”. Then, at the time when the output signal of the inverter circuit 76 changes from [0] to "1", the monostable multivibrator circuit 102 is triggered, and as shown in FIG. '', the output signal of the AND circuit 105 becomes ``1'', the flip-flop circuit 107 is always in the set state, and the set output signal of its set output terminal Q becomes ``1'' as shown in FIG. 15g. Become. Furthermore, when the inverter circuit 76 generates the output signal [1], the output signal of the inverter circuit 104 becomes "0" as shown in FIG. When the change occurs, the inverter circuit 104 changes the output signal from [0] to [1], and the monostable multivibrator 103 is triggered and the first
As shown in Figure 5 f, the output signal "1" is a constant width oscillation output.
Therefore, the input signals at the first and second input terminals of the AND circuit 106 are both [1], and the output signal [1] is generated.
”, and therefore the second output terminal 99b
Assuming that there is a knitting width instruction signal, the output signal "1" is generated as shown in FIG. 15h. Incidentally, when the sensor 40 scans the display sheet 10 in the left direction, opposite to the direction of the arrow 24, the reading operation of the outline line 14, the picture pattern 15, etc. is substantially the same as described above, and is shown in FIGS. 15a to 15h. Waveform diagrams of corresponding parts are shown in FIGS. 16a to 16h, and details are omitted. As is clear from the above description, the first output terminal 99a and the second output terminal 99b of the discrimination circuit 99 in this second embodiment are connected to the selective write circuit 88 of FIG.
If the configuration is such that it is connected to the first input terminal 1a and the second input terminal 1b, the same effects as in the embodiment described above can be obtained.

In this example, when the sensor 40 moves in the rightward direction of the arrow 24 or in the leftward direction of the opposite arrow 24, the second
The knitting width instruction signal (narrow width signal) output from the output terminal 99b of the sensor 40 always corresponds to the left side light window hole 48 of the sensor 40 corresponding to the outer pattern line 14, and therefore, the knitting width instruction signal (narrow width signal) is A deviation corresponding to the distance from the center line of the sensor 40 to the optical window hole 48 will occur.

To solve this problem, the selection write circuit 88
Sensor 4 when moving in the 24 direction of arrow 0 to the right
The distance from the center line of 0 to the optical window hole 48, that is, the area of 2.25 which matches the area width dimension of the slit plate 52, is subtracted from the content of the counter 87, and the left direction of the sensor 40 is subtracted. Even when the barrel moves in the opposite direction of the arrow 24, the sensor 4
Subtract the same negative area (2.25W!I), which is the distance from the center line of 0 to the optical window hole 48, to the content of the counter 87,
It is necessary to store the contents of the counter, which is the area number after each calculation correction, in the external memory circuit 91. Also, it is said that it is good when the selection write circuit 88 is given the all selection signal from the outer mold selection circuit 89, but for example, when the left selection signal is given, the narrow width signal is targeted and the sensor 40, the first and last output signal areas are judged within the range of "1" to "151" when the count content of the counter 87 is in the range of "1" to "151".
” to “151”,
Similarly, when the right selection signal is given, when the sensor 40 moves in the right direction, "152" to "D(1")
)", even when moving to the left, "152" to [30
The determination may be made within the range of 0. FIG. 17 shows a third embodiment of the present invention, and the same parts as in FIG. 4 in the previous embodiment are designated by the same reference numerals, and only the different parts will be described below.

That is, 109 is the sensor 4 mounted on the sensor mounting plate 26.
This is a sensor attached in place of the sensor base 22, and this is a receiving member 13 made of a transparent material in synchronization with the sensor base 22.
a light-emitting diode 41 for emitting infrared light disposed on the back side of the display sheet so as to be movable left and right; light-guiding members 110 and 111 made of optical fibers with one end sandwiching the display sheet 10 and facing the light-emitting diode 41; light guide member 11
A light guide member 110 and a light guide member 110 are formed of phototransistors 45 and 50 having spectral sensitivity characteristics in the infrared light region, which are opposite to the other end portions of the phototransistors 45 and 111, respectively, and are substantial signal sensing portions of the phototransistors 45 and 50. End 11 of 111
The spacing between 0a and 111a is set to be equal to that of the optical apertures 43 and 48 in the sensor 40.

Therefore, if the outline line 14, the picture pattern 15, and the line 16 (see FIG. 3) do not exist in the part of the display sheet 10 scanned by the sensor 109 in this embodiment, the red light from the light emitting diode 41 The external light passes through the receiving member 13 and the display sheet 10, passes through the light guide members 110 and 111, and is received by the phototransistors 45 and 50.
If there is an outline line 14, a picture pattern 15, or a line 16 in the part of the display sheet 10 scanned by 09, the infrared light from the light emitting diode 41 is absorbed by these and the light guide corresponding to that part is absorbed. One end 11 of members 110 and 111
0a and 111a do not receive light, so one or both of phototransistors 45 and 50 do not receive infrared light.

In this case, instead of the light emitting diode 41, it is also possible to arrange a fixed elongated tungsten lamp on the back side of the receiving member 13. With the above, this sensor-10
If sensor 9 is used in place of sensor 40 in the previous embodiment, the same effects as in the previous embodiment can be obtained.

In the above embodiment, the outline line 14, the picture pattern 15, and the line 16 are drawn on the display sheet 10 using black ink, and the light emitting diodes 41 and 46 that emit infrared light and the spectral sensitivity characteristics are provided in the infrared light region. phototransistors 45, 50 having
However, for example, the sensor scanning line 13a is made red, information such as outline lines and pictures are drawn in black or green ink, and the light emitting diodes 41 and 46 are replaced by light emitting lights having a red light emission spectrum. A diode may be used, and instead of the phototransistors 45 and 50, a phototransistor having spectral sensitivity characteristics to red light may be used.

In addition, the above embodiments describe the present invention in terms of the outer shape line 14 of the display sheet 10.
This is a case where the application is applied to a reading device for signals such as knitting width and pattern of a hand knitting machine that reads picture patterns 15 and lines 16, but is not limited thereto. For example, the fourth embodiment of the present invention shown in FIG. , the narrow signal 113 recorded on the signal recording member 112 is read as the information signal of the logic signal "O" and
4 can be used as a device for reading the logic signal "1" as an information signal.

However, in this case, for example, the discrimination circuit 55 shown in FIG.
Considering the case where the output signal "1" is generated at the second output terminal 55b, there is an information signal "0", and when the output signal "1" is generated at the first output terminal 55a, there is an information signal [0]. This means that a signal "1" has been received, and predetermined information is read by a combination of these information signals "0" and "1". In addition, the present invention is not limited to the embodiments described above and shown in the drawings; for example, it is sufficient that the reading member is movable relative to the signal recording member in the signal width direction. Of course, it can be implemented with appropriate modifications within the scope.

As described above in the present invention, wide and narrow signals are recorded on a signal recording member based on the difference in light transmittance or light reflectance, and the signals are recorded relative to the signal recording member in the width direction of the signal. a reading member that is movable, and this reading member is equipped with a pair of photoelectric conversion elements, and the distance between the substantial signal sensing portions of the two photoelectric conversion elements is made wider than the narrow signal width, and the reading member is provided with a pair of photoelectric conversion elements. In addition to setting the spacing to be narrower,
A first determination circuit that determines a wide signal when both photoelectric conversion elements sense a signal; and a first determination circuit that determines a wide signal when both photoelectric conversion elements sense a signal, and when one photoelectric conversion element senses a signal but the other photoelectric conversion element does not sense a signal at the same time. Since the configuration is provided with a second determination circuit that determines that the signal is a narrow signal, the wide and narrow signals recorded on the signal recording member can be reliably read photoelectrically. A possible signal reading device can be provided.

[Brief explanation of the drawing]

1 to 13 show a first embodiment in which the present invention is applied to a reading device for signals such as knitting width and pattern of a hand knitting machine,
FIG. 1 is a longitudinal side view, FIG. 2 is a perspective view of the signal reading and processing unit, FIG. 3 is a diagram showing the relationship between the display sheet, slit plate, and needle bed, and FIG. 4 is an enlarged cross-sectional view of the sensor section. Fig. 5 is an enlarged view of the slit plate, Fig. 6 is a partial enlarged view of the display panel, Fig. 7 is a configuration diagram of the discrimination circuit, Fig. 8 is a block diagram of the signal implementation circuit, and Fig. 9 is an explanatory diagram of the operation. , 10th
11 and 11 are waveform diagrams of each part of the discrimination circuit, and FIGS. 12 and 13 are operation explanatory diagrams. 14 to 16 show a second embodiment of the present invention,
FIG. 14 is a block diagram of the discrimination circuit, and FIGS. 15 and 16 are waveform diagrams of various parts of the discrimination circuit. FIG. 17 is a plan view of the sensor portion of the third embodiment of the present invention, and FIG.
The figure is a partial view of a signal recording member in a fourth embodiment of the present invention. In the drawing, 2 is a needle bed, 3 is a knitting needle, 5 is a carriage, 7 is a signal reading and processing unit, 10 is a display sheet (signal recording member), 14 is an outline line (narrow signal), 15 is a picture pattern (wide) 40 is a sensor (reading member), 41 is a light emitting diode, 43 is a light window (signal sensing part), 45 is a phototransistor (photoelectric conversion element), 46 is a light emitting diode, 48 is a light window (signal sensing ), 50 is a phototransistor (photoelectric conversion element), 52 is a slit plate, 53 is an area signal detector, 55 is a discrimination circuit, 56 is a signal implementation circuit, 58 is an end needle indicator, and 73 is a first judgment circuit. , 83 is a second determination circuit, 85 and 86 are light receiving elements, 87 is a counter, 88 is a selection write circuit, 91 is an external memory circuit, 92
93 is a pattern memory circuit, 93 is an arithmetic control circuit, 94 is an arithmetic circuit, 95 is a result memory circuit, 96 is a gauge information memory circuit, 98 is a display control circuit, 99 is a discrimination circuit, 101 is a first judgment circuit, 108 1 is a second determination circuit; 109 is a sensor (reading member); 110 and 111 are light guide members;
10a and 111a are end portions (signal sensing portions), 112 is a signal recording member, 113 is a narrow signal, and 114 is a wide signal.

Claims (1)

[Claims] 1. In a signal reading device for photoelectrically reading wide and narrow signals recorded on a signal recording member by the difference in light transmittance or light reflectance, A pair of photoelectric conversion elements are provided in a relatively movable reading member, and the distance between the substantial signal sensing portions of both photoelectric conversion elements is set to be wider than the narrow signal width and narrower than the wide signal width. A first determination circuit is connected to both photoelectric conversion elements and determines that the signal is a wide signal when both photoelectric conversion elements sense the signal, and a first determination circuit is connected to both photoelectric conversion elements to determine that the signal is a wide signal. a second determination circuit that determines that the signal is narrow when the other photoelectric conversion element does not sense the signal at the same time. reading device.