JPH0128595B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a sewing machine that forms a plurality of stitch patterns using a storage device such as a semiconductor memory, and particularly to a sewing machine that forms a kana character pattern.

[Conventional technology]

There are two methods for forming a kana character pattern with a voiced sound symbol in a sewing machine that stores a large number of patterns in a storage device, reads out the selected pattern, and sews the pattern. In the first method, in addition to the 50 kana characters, the voiced sound symbol "゛" and the half-voiced sound symbol "゜" are regarded as one independent pattern and are stored in the storage device, and the pattern is displayed on the pattern display board. This is a method of displaying them and using them in combination in sequence. In the first method, 50 kana characters are stored as memory contents.
The configuration of the device is simple because only the voiced sound code and the semi-voiced sound code are added in addition to the sound.
It is easy for a person using a sewing machine to select a combination of kana characters and a voiced sound symbol from the pattern display board. There is a problem that the formed characters do not have sophisticated shapes because it is not possible to express subtle differences in character shape depending on the presence or absence of the voiced sound symbol, or differences in the shape and position of the voiced sound symbol depending on the character to which the voiced sound symbol is attached.

The second method is to display all kana character patterns on the pattern display board, considering them as separate patterns for kana character patterns with voiced sound symbols and kana character patterns without voiced sound symbols, and to memorize all the kana character patterns. This is a method in which the information is stored in the device and read out for use. In the second method, the character shape becomes a sophisticated shape, but
The kana character pattern with the voiced sound symbol and the kana character pattern without the voiced sound symbol are separate patterns,
For example, the character pattern ``ka'' and the character pattern ``ga'' are completely separate patterns that the person using the sewing machine must select and specify from the pattern display board, which poses a problem in that the selection operation becomes troublesome.

[Problem that the invention seeks to solve]

The present invention aims to solve the above-mentioned problems, and it is possible to form kana characters with dakuon marks into sophisticated character shapes, and to form kana character patterns in which character patterns can be easily selected. The purpose is to provide a sewing machine that is

[Means for solving problems]

For this reason, in the present invention, as shown in FIG. In a sewing machine that forms a plurality of patterns in the order of combination by combining a plurality of patterns selected from the above by operating the combination operating body 1, the sewing machine is operable to designate one from the second group of kana characters and the voiced sound symbol. a designated operating body 2, a designating means 3 for generating a code signal corresponding to the designated kana character or voiced sound symbol, and storing the latest two code signals generated from the designating means 3 in designated order. When two code signals are stored in the storage means 4, it is determined whether or not the kana characters represented by the two code signals belong to the first kana character group. When it is determined that the kana character represented by the two code signals in the discriminating means 5 in response to the operation of the operating body 1 and the two code signals in the storage means 4 belongs to the first kana character group, There is provided a sewing machine capable of forming a kana character pattern, characterized in that it is provided with a selection means 6 for selecting the kana character pattern represented by the two code signals.

[Effect]

According to the configuration of the present invention, the designated operating body 2 allows
When a voiced sound code is specified following the kana character displayed on the pattern display board, the code signal of the kana character and the code signal of the voiced sound code generated in the designated order from the designation means 3 are stored in the code signal storage means 4. Next, the character group discriminating means 5 determines whether the kana character pattern designated by the above two code signals belongs to the first kana character group to which the voiced sound symbol is attached. Only when it is determined that the character belongs to the first kana character group, the pattern selection means 6 selects the kana character pattern with the voiced sound symbol designated by the two code signals. Therefore, a kana character pattern with a sophisticated shape of a voiced sound symbol can be designated by only operating the designating operating tool 2 without operating the combination operating tool 1, which simplifies the pattern designating operation.

〔Example〕

Embodiments of the present invention will be specifically described with reference to the drawings. FIG. 2 is a perspective view of a sewing machine that is an embodiment of the present invention. The front of the sewing machine body includes a pattern display board 11, an operation panel 12, and a start/stop switch 18 for starting or stopping the sewing machine motor.
is provided. As shown in FIG. 3, a large number of patterns and their code numbers are displayed in contrast on the pattern display board 11. Patterns include kana character patterns without voiced sound symbols, kanji numeral patterns, kanji patterns, picture patterns, and voiced sound symbols (code numbers 78 and 79), and the patterns that can be formed as stitch patterns with this sewing machine are displayed. ing.

FIG. 4 shows the operation panel 12. Operation panel 1
2, a pattern selection key 13 (designated operating body 2) consisting of a numeric keypad from 0 to 9, a combination key 14 (combined operating body 1) marked with a symbol (+),
7-segment display 1 that displays 2-digit numbers
5, a swing width adjustment lever 16, a stitch length adjustment lever 17, and the like are provided. The stitch width adjustment lever 16 and the stitch length adjustment lever 17 are levers for adjusting the width of the stitch of the zigzag pattern and the coarseness and fineness of the stitch length, respectively, and are well-known levers attached to a normal zigzag sewing machine. The explanation will be omitted.

The pattern selection key 13 is used to input the code number of the pattern to be formed. The combination key 14 is used to combine a plurality of patterns.
In order to clarify the functions of the two keys 13 and 14, as an example, an operation procedure for selecting and specifying a kana character pattern will be explained using FIGS. 2 to 4.

After turning on the power, the code number of the pattern to be formed is checked on the display board 11, and the two-digit pattern code number is input using the pattern selection key 13. If the kana character pattern to be formed is a kana character pattern with a voiced sound symbol, the combination key 14 is not operated, and the two-digit voiced sound code number (78 or 79) is input successively. This completes the input of a kana character pattern with one dakuon symbol attached. When combining character patterns, after selecting and inputting the first character pattern, press the combination key 14, and then similarly input the code number of the second character pattern using the pattern selection key 13. By repeating the same operation, a large number of kana character patterns can be combined and specified.
Next, when the start/stop switch 18 is pressed, the sewing machine starts and a stitch pattern of the combined kana characters is formed.

For example, if you want to form a combination pattern with "Suzuki, class 3, 2," the operation of the pattern selection key 13 (displayed as numbers 0 to 9) and the operation of the combination key 14 (displayed as +) is changed to "47+90+41+87+32+3278".
+26” and press the start/stop switch 18.

FIG. 5 schematically shows the configuration of this embodiment. A needle swing actuator 21 consisting of a pulse motor is
It is connected to the needle bar support frame 22 by a link structure, and the swing position of the needle bar 23 is determined by the rotation position of the needle swing actuator 21. Further, a cloth feed actuator 24 consisting of a pulse motor is coupled to a feed adjuster 25, and the rotational position of the cloth feed actuator 24 determines the inclination of the feed adjuster 25, and the cloth feed amount and direction of the feed dog 26 are determined. It is becoming more and more common. The above constitutes a stitch pattern forming device. A timing generator 28 consisting of an electromagnetic sensor is disposed adjacent to the main shaft 27 of the sewing machine. The timing generator 28 generates a timing signal every rotation of the main shaft 27 and outputs it to the electronic control device 30. In addition to the timing generator 28, signals from the pattern selection key 13, the combination key 14, and the start/stop switch 18 are input to the electronic control device 30, and the signals are inputted to the electronic control device 30, and the signals are inputted from the pattern selection key 13, the combination key 14, and the start/stop switch 18.
The sewing machine motor 29 and the display 15 are controlled and driven.

The electronic control device 30 controls the rotational positions of the needle swing actuator 21 and the cloth feed actuator 24 for each rotation of the main shaft 27 of the sewing machine, thereby controlling the swinging position of the needle bar 23 for each stitch, Pattern sewing is performed by controlling the amount and direction (forward or backward) of cloth feed.

The correspondence between the configuration of this embodiment described above and the configuration of the present invention shown in FIG. 1 will be explained. Combination operating body 1
corresponds to the combination key 14, and the designated operating body 2 corresponds to the pattern selection key 13. The designation means 3, the character group discrimination means 5 and the pattern selection means 6 are controlled by the electronic control device 3.
The code signal storage means 4 is realized as processing by the central processing unit (CPU) in the electronic control unit 3.
0 (code memory 11 shown in FIG.
0). The stitch pattern forming device is composed of a needle swing actuator 21 and a cloth feed actuator 24 shown in FIG. The actuator drive circuit (actuator drive circuit 104 shown in FIG. 6) in the control device 30 is the actuator drive circuit (actuator drive circuit 104 shown in FIG. 6), and the pattern storage means is the memory element (in FIGS.
This is realized as data stored in the stitch data memory 106) shown in the figure.

FIG. 6 is a block diagram of this embodiment. The electronic control unit 30 includes a central processing unit (CPU) 101 that performs various calculations and discrimination processes.

When a two-digit code number is input from the pattern selection key 13, the encoder circuit 102 sends a code signal PN that encodes the code number and a signal PS1 indicating that the code number has been input to the CPU 101.
Output to.

The display drive circuit 103 drives the display 15 that displays a two-digit number according to data given from the CPU 101.

The actuator drive circuit 104 is connected to the CPU 10
1, the rotational positions of the needle swing actuator 21 and cloth feed actuator 24 are controlled.

The motor drive circuit 105 includes a start/stop switch 1
According to the signal from 8, the sewing machine motor 29 is driven. If the start/stop switch 18 is operated while the sewing machine motor 29 is stopped, the sewing machine motor 29 starts operating, and if the start/stop switch 18 is operated while the sewing machine motor 29 is running, the sewing machine motor 29 is stopped. . Motor drive circuit 105
When the sewing machine motor 29 is operating, it outputs a signal CM indicating that the sewing machine motor 29 is in operation to the CPU 101.

Stitch data memory (equivalent to pattern storage means) 10
6 is a read-only memory (ROM), and as shown in FIG. 7, each address (mo,..., mi,...,
needle swing data (s) and cloth feed data (f) are stored for each item (mk, . . . ). Data (s) for each address (mo, ..., mi, ..., mk, ...),
(f) indicates the swing position of the needle bar 23 and the inclination of the feed adjuster 25 for each rotation of the sewing machine, in other words, for each stitch. address mo to mi−1
The data up to this point is the data for forming one pattern, and the last address mi-1 contains data in which all bits are , indicating that one pattern has been completed. Sewing machine mi to mk-1
The data up to this point are data forming different patterns, and in this way, data for a large number of patterns are stored consecutively. The address where the first data of each pattern is stored, mo, mi, mk, etc. in FIG. 7, is called the head address (HAD).

The head address memory 107 shown in FIG. 6 is a read-only memory, and stores a comparison table between the code signal of each pattern and the head address (HAD).

The table memory 108 is a read-only memory, and stores all code signals of kana character patterns belonging to the first kana character group to which voiced sound symbols are added, and the specified kana character pattern is the first kana character. It is used as a comparison table to determine whether it belongs to a group or not.

Intermediate memory 109 is temporary memory (RAM)
The head address (HAD) corresponding to the specified pattern is stored.

The code memory 110 (corresponding to the code signal storage means 4) is a temporary storage memory, and stores a code signal of a designated pattern.

In addition, although not shown in Fig. 6, the CPU has a ROM that stores the control program, and a RAM that temporarily stores intermediate data such as flags.
101.

The operation will be explained based on the configuration described above. FIG. 8 shows a flowchart of processing in the CPU 101.

A processing routine starts when the power is turned on 200, and initial settings such as resetting various flags are executed in step 201.

Next, in step 202, it is checked whether a signal CM indicating that the sewing machine motor 29 is in operation is being output. If the signal CM is not output (CM=0), the process advances to step 203. In step 203, it is checked whether the pattern selection key 13 outputs a signal PS1 indicating that a two-digit code number has been input. If the signal PS1 is not output (PS1=0), the process advances to step 204. In step 204, it is checked whether a signal PS2 indicating that the combination key 14 has been operated is output. If signal PS2 is not output (PS2=
0), proceed to step 205. In step 205, it is checked whether the signal PS3 indicating that the switch 18 for starting the sewing machine motor 29 has been operated is being output. If the signal PS3 is not output (PS3
=0), the process returns to step 202.

In this way, after the power is turned on, the operation of the operation keys and switches is monitored while cycling through steps 202 to 205.

When the 2-digit pattern code number is selected and input from the pattern selection key 13, PS1=1, so step
Proceed to step 206 from 203. In step 206,
It is checked whether the flag CF indicating that the combination key 14 was operated in the previous operation is set to 1. If it is not set and CF=0,
Proceeding to step 207, the contents (starting address HAD) stored in the intermediate memory 109 are erased. At step 206, CF=1 and combination key 14
is operated, do nothing and proceed to step 208.
Proceed to. Next, in step 208, the flag CF is reset to 0. Next, in step 209, it is checked whether a flag TDF for allocating memory addresses for storing pattern code signals has been set. If it is not set and TDF=0, the process proceeds to step 210, where the flag TDF is set to 1, and then, in step 211, the 2-digit pattern code signal is stored in the first address of the code memory 110, and the process proceeds to step 214. Proceed to. On the other hand, if the flag TDF is set to 1 in step 209 (TDF=1), the process advances to step 212, where the flag TDF is set to 1 (TDF=1).
(TDF=0). Then step
At step 213, the two-digit pattern code signal PN is stored in the second address of the code memory 110, and the step
Proceed to 214. In step 214, the pattern code signal is
PN is output to the display drive circuit 103, and the display 1
5 displays the pattern code number. This completes the pattern code signal selection routine and moves on to the step
Return to 204 and wait for the next operation.

When the combination key 14 is pressed, PS2 becomes 1, so the process advances from step 204 to step 215 and the flag is set.
Set CF (CF=1) and then proceed to step 216.

When the start/stop switch 18 is pressed, the sewing machine motor 29 is started and PS3=1, so the process advances from step 205 to step 216.

Therefore, the process proceeds to step 216 when the combination key 14 or start/stop switch 18 is pressed, which means that selection and designation of at least one pattern code number has been completed.

at steps 216, 217, and 218 respectively.
By checking whether TDF=1, the voiced sound symbol, and the first kana character, it is checked whether the selected pattern code signal is appropriate for specifying the pattern, and if it is not appropriate, step 223 is performed. Proceed to the abnormality handling routine below and step if appropriate.
Proceed to 219 and below. The conditions for determining appropriateness are:
If the flag TDF for allocating memory addresses for storing the pattern code signals set in steps 210 and 212 is set (TDF=1), the pattern code stored in the first address of the code memory 110 is When the signal is not a voiced sound code signal and the flag TDF is reset (TDF=0), the pattern code signal specified by the two pattern code signals stored in the first and second addresses of the code memory 110 is This is when the kana character pattern belongs to the first kana character group to which the voiced sound symbol is attached. Whether or not the character belongs to the first kana character group checked in step 218 is determined by using the code signal temporarily stored in the code memory 110.
The pattern code signals of all the first kana character groups stored in the table memory 108, which is a ROM, are compared and examined.

If the pattern code signal is not correct, the step
Proceeding to step 223, the display 15 flashes as an abnormality alarm to notify of an erroneous operation, and then, in step 224,
The pattern code signal stored in the code memory 110 is erased, the flag TDF is reset, and the process returns to step 202.

If the pattern code signal is appropriate, the process advances to step 219 and the code memory 110 shown in FIG.
The comparison table stored in the head address memory 107 is searched using the pattern code signal stored in the pattern code signal, and the head address HAD of the corresponding pattern data is read out. At this time, the kana character pattern with the voiced sound symbol and the kana character pattern without the voiced sound symbol are stored in the stitch data memory 106 as completely different patterns for, for example, "su" and "zu". , of course their starting addresses are also different.

Next, in step 220, the head address HAD read out in step 219 is stored in the intermediate memory 109 shown in FIG. At this time, the address of the intermediate memory where the first address is stored is determined by the step counter C1. The step counter C1 is an internal counter for combining a plurality of patterns and reading out pattern data in the order of the combination.

Next, in step 221, it is checked whether a flag CF indicating that the combination key 14 has been operated is set. If flag CF has been reset (CF=0), the process returns to step 202 to prepare for the next operation. If the combination key 14 is operated and the flag CF is set (CF=1),
The pattern code signals to be combined should be selected and specified in the next operation, so proceed to step 222.
The value of the step counter C1 is incremented, and step 202
Return to

The processing routine described above is the pattern selection key 13,
and is repeated every time the combination key 14 is operated. When you have finished specifying the combination of multiple patterns to be formed, enter the start address of each pattern.
HAD is the intermediate memory 1 shown in Figure 6 in the order of combination.
It is written in 09. Therefore, when the sewing machine is started, stitch data is sequentially read out from each of a large number of addresses including each leading address written in the intermediate memory 109, and the needle swing actuator 21 and the cloth feed are adjusted according to the data. By driving the actuator 24, a stitch pattern is formed. This process is executed in the stitch forming routine 225 shown in FIG.

When the start/stop switch 18 is operated and the sewing machine motor 29 is started, since CM=1, the process proceeds from step 202 to a stitch forming routine 225, and by executing this stitch forming routine, one stitch is formed. , then return to step 202. Therefore, while the sewing machine motor 29 is in operation, the stitch forming routine 225 is repeatedly executed.

In the stitch forming routine 225, the timing signal TP is sent to the CPU from the timing generator 28 shown in FIG.
101, the stitch data memory 10
6, needle swing data (s) and cloth feed data (f) are sequentially read out from the first address and output to the actuator drive circuit 104. The actuator drive circuit 104 positions the rotation angle position of the needle swing actuator 21 according to the needle swing data (s), controls the swing position of the needle bar 23, and controls the swing position of the needle bar 23 according to the cloth feed data (f). The rotation angle position of the cloth feed actuator 24 is determined to control the inclination of the feed adjuster 25. In this way,
The position of the needle bar 23 and the amount and direction of cloth feed for each stitch are controlled, and pattern stitching is executed.

[Effects of the Invention] As described above, the present invention, in order to specify a kana character pattern with a voiced sound symbol, simply operates the designated operation tool to add the voiced sound symbol next to the kana character displayed on the pattern display board. It has the excellent effect that the specification operation is easy because there is no need to operate the combination operating body, and the kana character pattern with the voiced sound symbol is different from the kana character pattern without the voiced sound symbol. Since it is stored as a separate pattern, it has the excellent effect that a kana character pattern formed as a stitch pattern can be made into a sophisticated shape.

[Brief explanation of drawings]

Fig. 1 is a view corresponding to the claims of the present invention, Fig. 2 is a perspective view of a sewing machine according to an embodiment, Fig. 3 is a front view of the pattern display board, Fig. 4 is a front view of the operation panel, and Fig. 5 is a front view of the operation panel.
6 is a block diagram of the embodiment, FIG. 7 is an explanatory diagram showing the contents of the stitch data memory, and FIG. 8 is a flowchart illustrating the operation. 11...Pattern display board, 13...Pattern selection key,
14... Combination key, 15... Display, 18...
Start/stop switch, 21...needle swing actuator, 24...cloth feed actuator, 29...sewing machine motor, 30...electronic control unit, 101...
CPU, 104... Actuator drive circuit, 1
06...Stitch data memory, 108...Table memory, 110...Code memory.

Claims (1)

[Claims] 1. Combination of patterns selected from among a large number of patterns related to a large number of kana characters including a first group of kana characters to which a voiced sound symbol is attached and a second group of kana characters to which a voiced sound symbol is not attached. In a sewing machine that forms a plurality of patterns in a plurality of combinations in the order of the combinations by operating an operating body, one of the second kana character group and the voiced sound symbol.
a designation means that has a designation operating body that can be operated to designate one, and generates a code signal corresponding to the designated kana character or voiced sound symbol, and the latest two that are generated from the designation means in the designated order;
storage means capable of storing one code signal; and when two code signals are stored in the storage means, whether the kana characters represented by the two code signals belong to the first kana character group; a discriminating means for discriminating whether the kana character is a kana character in response to an operation of the combination operating body; and when it is determined that the kana character represented by the two code signals in the storage means belongs to the first kana character group; , and selection means for selecting the kana character pattern represented by the two code signals. 2. The selection means selects one of the second kana character group according to the one code signal when the combination operating body is operated with one code signal stored in the storage means. A sewing machine capable of forming a kana character pattern according to claim 1, wherein a pattern of kana characters is selected.