JP2561650C - - Google Patents

Description

Description: TECHNICAL FIELD [Detailed description of the invention] (Industrial application field) The present invention relates to a sewing machine capable of displaying a stitch pattern stored in an external device.

(Previous technology) In recent electronically controlled zigzag sewing machines, a large number of frequently used stitch patterns (previous technology)
For example, while storing the stitch data related to (200 to 300 types) in the internal memory in the control device, the stitch data related to a large number of infrequently used stitch patterns (for example, 100 to 200) can be attached to and detached from the sewing machine body. It is stored in the external memory in the free memory cassette, and the desired stitch is sewn by inputting the code number corresponding to each stitch pattern for both the stitch pattern in the internal memory and the stitch pattern in the external memory. The eye pattern is selected.

By the way, the label indicating the type of stitch pattern attached to the memory cassette may become unreadable with use, and the label may become unreadable depending on the mounting structure of the memory cassette on the sewing machine body. In view of this, in the previous application (Japanese Patent Application No. 59-72275), the applicant applied an electronically controlled zigzag that displays the type of stitch pattern stored in the memory cassette on the display device by voice or character display. I proposed a sewing machine.

(Problem to be Solved by the Invention) In a sewing machine such as the above-mentioned conventional electronically controlled zigzag sewing machine in which a stitch pattern stored in a memory cassette is selectively input via a code number, the stitch pattern is used. There is a code number that is difficult to get used to between the selection and the input operation, and it is very troublesome because you have to pay a lot of attention to the confirmation and input operation of the code number.
There is a problem that the shape of the stitch pattern cannot be directly confirmed before the start of sewing.

On the other hand, in the electronically controlled zigzag sewing machine according to the above-mentioned application, only the type of the stitch pattern stored in the memory cassette is displayed by voice or characters.
Since the individual stitch patterns are not displayed, the code number and the like must be input in order to select the desired stitch pattern, and the above-mentioned problems still remain.

(Means for Solving Problems) The sewing machine according to claim 1 of the present invention has stitch data for forming a plurality of stitch patterns forming a second stitch pattern group different from the first stitch pattern group. An external memory device that has an external memory that stores the image of the sewing pattern formed by the sewing machine data and the image display data for displaying the image of the sewing pattern, and is detachably configured on the sewing machine body, and an external device. The selected stitch pattern in the second stitch pattern group is operated by the selection operation procedure operated to select the desired stitch pattern from the second stitch pattern group in the memory and the operation of the selection operation means. It is provided with a display means for displaying the figure of the above according to the figure display data before the sewing of the stitch pattern is started.

Further, the sewing machine according to claim 2 is used when the stitch pattern in the first stitch pattern group is selected.
It is provided with a display means for displaying the content representing the selected stitch pattern.

(Action) In the sewing machine according to claim 1 of the present invention, the external storage device includes stitch data for forming a plurality of stitch patterns forming a second stitch pattern group different from the first stitch pattern group. It has an external memory that stores the figure display data for displaying the figure of the stitch pattern formed by these stitch data, and is detachably configured on the sewing machine main body.
The selection operation means is operated to select a desired stitch pattern from the second stitch pattern group in the external memory. The display means operates to display the figure of the selected stitch pattern in the second stitch pattern group according to the figure display data before the start of sewing of the stitch pattern by the operation of the selection means.

Further, in the sewing machine according to claim 2, when a stitch pattern in the first stitch pattern group is selected, the display means operates to display the content representing the selected stitch pattern.

(Effect of the Invention) According to the sewing machine capable of displaying the stitch pattern stored in the external 100 million device according to claim 1 of the present invention, as described above, the stitch in the external memory of the external 100 million device Since the pattern can be selectively selected by the selection operation means and the shape of the selected seam pattern can be displayed by the display means, the shape of the seam pattern selected before the start of sewing can be directly and easily displayed. You can check it.

Further, according to the sewing machine according to the second aspect, when the stitch pattern in the first stitch pattern group is selected, the display means displays the content representing the selected stitch pattern, so that the external memory can be used. Regardless of whether it is a stitch pattern or a stitch pattern in the internal memory, it is possible to reliably and easily confirm whether or not the selected stitch pattern is a desired stitch pattern.

(Example) Hereinafter, examples of the present invention will be described with reference to the drawings.

In the electronically controlled zigzag sewing machine M according to the present embodiment, there are about 200 to 300 kinds of stitches related to the stitch patterns corresponding to the first stitch pattern group which is relatively frequently used in the internal memory in the control device C. The second stitch, which stores data and code number display data, and is relatively infrequently used in each external memory in the memory cassette 1 corresponding to a plurality of external storage devices that are detachably attached to the sewing machine body. The stitch data and the figurative display data related to a plurality of stitch patterns corresponding to the stitch pattern group are stored.

A code number is assigned to each of the stitch patterns in the internal memory. Among the stitch patterns, about 20 types of stitch patterns that are frequently used are displayed on the front surface of the arm portion 2 of the sewing machine body. The shape of each stitch pattern and the code number are displayed in part 2a in correspondence with each other, and for other stitch patterns, the shape of each stitch pattern and the code number are displayed in correspondence with each other on a plurality of display boards. , Each display board can be displayed in a switchable manner on the display window 2b on the front surface of the arm unit 2.

On the operation panel on the front surface of the support column 3 of the main body of the sewing machine, a liquid crystal display 4 having a large number of matrix-shaped liquid crystal elements, an upper digit key 5a and a lower digit key 5b, and an internal memory and an external memory are selectively selected. Selectable switch 6, sewing machine motor rotation speed (ie,
A speed adjustment knob 7 for adjusting (sewing speed) is provided, and a start / stop push button 9 for operating the start / stop of the sewing machine motor is provided on the front surface of the head of the arm portion 2. When selecting each stitch pattern stored in the internal memory, as shown in FIG. 2, select "inside" with the changeover switch 6 and select the code number of the desired stitch pattern (however, 00 to 99). When the (2-digit number) is specified by the upper digit key 5a and the lower digit key 5b, the code number of the selected stitch pattern is displayed on the liquid crystal display 4, and the start / stop push button 9 is switched to ON in this state. This makes it possible to sew the stitch pattern.

When selecting each stitch pattern stored in the external memory of each of the memory cassettes 1, select "external" with the changeover switch 6 and mount the desired memory cassette 1 on the cassette mounting portion 10 of the sewing machine main body. , When the upper digit key 5a is operated, the shape of each stitch pattern is fast-forwarded in order from the first stitch pattern stored in the external memory and displayed on the liquid crystal display 4, and the lower digit key 5b is pressed. When each operation is performed, the shape of each stitch pattern is sequentially displayed on the liquid crystal display 4 in step feed each time the operation is performed, and in this way, the desired stitch pattern displayed on the liquid crystal display 4 is selected and displayed. By switching the start / stop push button 9 to ON in this state, the stitch pattern can be sewn.

The cassette mounting portion 10 is horizontally recessed in a slot shape in the lower part of the right side surface of the strut portion 3 rising from the right end of the bed portion 11, and when the memory cassette 1 is mounted there, the memory cassette 1 becomes a connector. It is connected to the control device C via.

Next, the control device C is configured as shown in, for example, the functional block diagram shown in FIG. 5, and this will be described below.

The internal memory is the first stitch data memory 15 and the code number display data memory 23 in FIG. 5, and the external memory is the second stitch data memory 1a and the figurative display data memory 1b. is there. Then, as in the case of the existing electronically controlled zigzag sewing machine, the needle bar swing actuator 18 and the cloth are provided in the first stitch data memory 15 and the second stitch data memory 1a for each sewing operation of each stitch pattern. The stitch data that controls the feed actuator 19 for feed is stored in a group of addresses that continue in order from the start address. Further, in the code number display data memory 23 in the internal memory, code number display data for displaying each number 0 to 9 of the upper digit of the code number of the stitch pattern on the upper digit side of the liquid crystal display 4 is stored. The code number display data for displaying each number 0 to 9 of the lower digit of the code number on the lower digit side of the liquid crystal display 4 is stored in each address.

Further, in the figure display data memory 1b in the external memory, figure display data for displaying the figure of each stitch pattern on the liquid crystal display 4 is stored at each address.

Therefore, the control device C includes the needle bar swing actuator 18 and the feed actuator 19.
The sewing machine motor that drives the needle bar vertical drive device and the cloth feed vertical drive device is controlled by a sewing machine motor control circuit (not shown).

Here, first, the configuration and operation for selecting the stitch pattern stored in the internal memory will be described.

The changeover switch 6 is connected to the selection terminals S of the multiplexers 16 and 24 via the memory selection circuit 6a, and when "internal" is selected by the changeover switch 6, the memory selection signal MS of the "L" level is transmitted from the memory selection circuit 6a. When the output is made and the PL terminals of the multiplexers 16 and 24 are selected and "external" is selected with the changeover switch 6, "H" is selected from the memory selection circuit 6a.
The level memory selection signal MS is output and the PH terminals of the multiplexers 16 and 24 are selected. The output of the upper digit key 5a goes through the counter 12 and the output of the lower digit key 5b goes through the lower counter 13 to the first stitch data reading circuit 14 and the first display data reading circuit 22 as a pattern code signal PC. The timing signal TS from the timing signal generator 20 provided in conjunction with the main shaft of the sewing machine motor is also output to the first stitch data reading circuit 14.

The seam data address signal is output from the first seam data reading circuit 14 to the first seam data memory 15, and the seam data is output from the first seam data memory 15 to the multiplexer 16
Is output to the PL terminal, the multiplexer 16 outputs to the actuator driver 17, and the actuator driver 17 outputs a drive signal to the needle bar swing actuator 18 and the feed actuator 19.

Further, the clock signal CL is output from the oscillator 21 to the first display data reading circuit 22 that receives the pattern code signal PC from the upper counter 12 and the lower counter 13 every minute time, and is displayed from the first display data reading circuit 22. The data address signal is output to the code number display data memory 23, the code number display data is output from the code number display data memory 23 to the PL terminal of the multiplexer 24, is output from the multiplexer 24 to the display driver 25, and is output from the display driver 25. The drive signal is output to the liquid crystal display 4.

The high-order digit key 5a specifies the high-order digit of the 2-digit code number of each stitch pattern stored in the internal memory, and specifies the high-order digit from 0 to 9 according to the number of operations. It has become like.

The lower digit key 5b specifies the lower digit of the code number as described above, and specifies the lower digit from 0 to 9 according to the number of operations.

When the code number of the desired stitch pattern is input by operating the upper digit key 5a and the lower digit key 5b, the upper digit signal and the lower digit signal are counted by the upper counter 12 and the lower counter 13, respectively, and both signals are counted. The pattern code signal PC composed of the combination of the above is output to the first display data reading circuit 22 and the first stitch data reading circuit 14.

The clock signal CL from the pattern code signal PC and the oscillator 21 is received by the first display data reading circuit 22, and the pattern code signal PC is temporarily stored in the register. Synchronized pattern code signal Outputs the display data address signal corresponding to the PC to the code number display data memory 23.

The code number display data corresponding to the pattern code signal PC is output from the code number display data memory 23 to the display driver 25 via the multiplexer 24, and the drive signal is output from the display driver 25 to the liquid crystal display 4. As a result, the selected desired code number is displayed on the liquid crystal display 4 every minute time synchronized with the clock signal CL. Then, the code number displayed on the liquid crystal display 4 as described above will be continuously displayed until the pattern code signal PC is updated.

When the start / stop push button 9 is turned ON after the selection operation for the above stitch pattern, the timing signal TS is output to the first stitch data reading circuit 14, and the desired stitch pattern is sewn. Become.

That is, the first stitch data reading circuit 14 records the start address of each stitch pattern in the first stitch data memory 15 in correspondence with the code number, while the timing signal.
It is equipped with an address counter that receives TS and counts address numbers in order.
When the above pattern code signal PC is received, it is temporarily stored in a register, and a series of stitch data address signals are output to the first stitch data memory 15 in order from the start address in synchronization with the timing signal TS. It has become. And the pattern code signal
Until the PC is updated, the above series of stitch data address signals are repeatedly output.

From the first stitch data memory 15, the stitch data stored in the series of addresses following the start address in response to the series of stitch data address signals is multiplexed.
The needle bar swing actuator 18 and the feed actuator are sequentially output to the actuator driver 17 via 16 and are output from the actuator driver 17.
Each of 19 is driven, and the selected desired stitch pattern is sewn. Then, the same stitch pattern is repeatedly sewn until the pattern code signal PC is updated. As described above, the code number display data and the first stitch data in the internal memory for the desired stitch pattern are read, the code number of the stitch pattern is displayed, and the stitch pattern is sewn. Can be done.

Next, the configuration and operation for selecting the stitch pattern stored in the desired memory cassette 1 will be described.

When "external" is selected with the changeover switch 6, the "H" level memory selection signal MS is output from the memory selection circuit 6a to the selection terminals S of the multiplexers 16 and 24, and the PH terminals of the multiplexers 16 and 24 are selected. .. Then, when the memory cassette 1 is mounted on the cassette mounting unit 10, the memory cassette 1 is connected to the control device C via the connector 32.

The output terminal of the upper digit key 5a and the output terminal of the oscillator 21 are connected to the input terminal of the AND gate 26, respectively, and the output terminal of the lower digit key 5b and the output terminal of the AND gate 26 are OR respectively.
Connected to the input terminal of the gate 27, the output terminal of the OR gate 27 and the memory selection circuit 6a
The output terminals of are connected to the input terminals of the AND gate 28, respectively, the signal from the AND gate 28 is output to the counter 29, and the second stitch data reading circuit 30 is output from the counter 29.
And the second display data read circuit 31 and the pattern code signal PC0 are output respectively, and the timing signal generator 20 outputs the timing signal TS to the second stitch data read circuit 30 while the clock signal CL is output from the oscillator 21. It is output to the second display data reading circuit 31.

The seam data address signal is output from the second seam data reading circuit 30 to the second seam data memory 1a via the connector 32, and the seam data is output from the second seam data memory 1a to the connector 32 and the connector 32. A needle bar swing actuator is output to the actuator driver 17 via the multiplexer 16 and is a drive signal output from the actuator driver 17.
18 and feed actuator 19 are driven respectively.

The display data address signal is output from the second display data reading circuit 31 to the graphic display data memory 1b via the connector 32, and the graphic display data is output from the graphic display data memory 1b via the connector 32 and the multiplexer 24. It is output to 25, and the drive signal is output from the display variable 25 to the liquid crystal display 4.

When selecting a desired stitch pattern in the memory cassette 1, the digit key 5a is used as a fast forward key, and the lower digit key 5b is used as a step feed key.

That is, if the upper digit key 5a is held down, the clock signal CL from the oscillator 21 is AN during that time.
The clock signal CL is the counter 29 because the memory selection signal MS is an "H" level signal while it is output from the D gate 26 and input to one of the input terminals of the AND gate 28 via the OR gate 27. It is output to and counted by the counter 29, and the number of counted signals corresponds to the code number of the stitch pattern in the memory cassette 1.
The pattern code signal PC0 is output from the counter 29.

The pattern code signal PC0 is output from the counter 29 to the second stitch data reading circuit 30 and the second display data reading circuit 31, but the timing signal TS is not output until the start / stop push button 9 is turned on. It is not output from the seam data reading circuit 30, but the display data address signal is output from the second display data reading circuit 31.

The second display data reading circuit 31 receives the pattern code signal PC0 and temporarily stores it in the register, and synchronizes with the clock signal CL each time the clock signal CL is input to store the display data address signal corresponding to the pattern code signal PC0. It is output every moment to the graphic display data memory 1b via the connector 32.

From the image display data memory 1b, the image display data corresponding to the pattern code signal PC0 is output to the display driver 25 via the connector 32 and the multiplexer 24, and the drive signal is output from the display driver 25 to the liquid crystal display 4. , The pattern of the stitch pattern corresponding to the pattern code signal PC0 is continuously displayed on the liquid crystal display 4.

However, while the high-order digit key 5a is held down, the pattern code signal PC0 is the clock signal C.
Since the images are updated in sequence in synchronization with L, each figure is sequentially displayed on the liquid crystal display 4 in a fast-forward invoice.

After the fast-forward display by the operation of the upper digit key 5a as described above, when the operation of the upper digit key 5a is stopped and the lower digit key 5b is operated once, the counter 29 counts up in order and the liquid crystal display. In 4, each figure is displayed step by step.

As described above, the upper digit key 5a and the lower digit key 5b can be used to select a desired stitch pattern stored in the memory cassette 1 and display the pattern on the liquid crystal display 4.

Then, the image of the stitch pattern selected and displayed on the liquid crystal display 4 is continuously displayed until the pattern code signal PC0 is updated.

When the start / stop push button 9 is turned ON after the selection operation for the above stitch pattern, the timing signal TS is output to the second stitch data reading circuit 30, and the desired stitch pattern is sewn. Become.

That is, the second stitch data reading circuit 30 stores the start address of each stitch pattern in the second stitch data memory 1a in correspondence with the code number, similarly to the first stitch data reading circuit 14. On the other hand, it is equipped with an address counter that receives the timing signal TS and counts the address numbers in order. When the above pattern code signal PC0 is received, it is temporarily stored in a register and synchronized with the timing signal TS to start the address. A series of stitch data address signals are sequentially output to the second stitch data memory 1a via the connector 32. Then, until the pattern code signal PC0 is updated, the above series of stitch data address signals are repeatedly output.

From the second stitch data memory 1a, as in the first stitch data memory 15, the stitch data stored in the series of addresses following the start address in response to the series of stitch data address signals is the connector 32. And actuator driver via multiplexer 16
The output is sequentially output to 17, and the drive signal is output from the actuator driver 17 to the needle bar swing actuator 18 and the feed actuator 19, and the selected desired stitch pattern is sewn. Then, the same stitch pattern is repeatedly sewn until the pattern code signal is updated.

As described above, the stitch pattern in the external memory of the memory cassette 1 is selected, the figure display data is read out, the figure is displayed on the liquid crystal display 4, and the stitch pattern is selected after confirming the figure. , The figure can be displayed and the stitch data can be read to sew the stitch pattern.

In the functional block of FIG. 5, the portion surrounded by the one-point line can be configured by a microcomputer. Further, the needle bar swing actuator 18 and the feed actuator 19 are composed of a step motor or the like.

Here, the above embodiment can be partially changed as follows.

As for the stitch pattern stored in the internal memory, the liquid crystal display 4 may be configured to display the image of the selected stitch pattern in the same manner as the stitch pattern in the external memory.

When the figure of the stitch pattern in the external memory or the internal memory is displayed on the liquid crystal display 4, the code number may be displayed in a small size in addition to the figure.

Instead of the upper digit key 5a and the lower digit key 5b, a numeric keypad may be provided and the code number of the stitch pattern may be input by the numeric keypad.

As shown in FIG. 6, the external memory in the memory cassette 1 may store the stitch data and the figure display data as a pair for each substitute stitch pattern.

Instead of the liquid crystal display 4, a display having light emitting diodes or the like arranged in a matrix may be used.

If necessary, it is possible to provide a cancel key for canceling the malfunction, a reverse feed key for counting down the pattern code signal PC0 when selecting a stitch pattern in the memory cassette 1, and a circuit for that purpose.

Further, it is needless to say that the functional block diagram of the control device shown in FIG. 5 shows only one embodiment, and the present invention can be carried out by the control device of various other modes.

[Simple explanation of drawings]

The drawings show an embodiment of the present invention, FIG. 1 is a front view of an electronically controlled zigzag sewing machine, FIG. 2 is a front view of an operation panel when switching to an internal memory, and FIG. 3 is a switching to an external memory. The front view of the operation panel at the time, FIG. 4 is a vertical sectional view of the cassette mounting portion, FIG. 5 is a functional block diagram of the control device, and FIG. 6 is an explanatory diagram of a memory map of an external memory according to a modified example. .. M ... Electronically controlled zigzag sewing machine, C ... Control device, 1 ... Memory cassette, 1a
…… 2nd stitch data memory, 1b …… Figurative display data memory, 4 …… Liquid crystal display,
5a …… upper digit key, 5b …… lower digit key, 6 …… selector switch, 6a …… memory selection circuit, 10 …… cassette mounting part, 12 …… upper counter, 13 …… lower counter, 14…
... 1st stitch data read circuit, 15 ... 1st stitch data memory, 16 ... multiplexer, 20 ... timing signal generator, 21 ... oscillator, 22 ... 1st display data read circuit, 23 ... Code number display data memory, 24 ... multiplexer, 25 ... display driver, 26 ... AND gate, 27 ... OR gate, 28 ... AND gate, 29 ... counter, 30 ... second stitch data read circuit , 31 …… 2nd display data reading circuit, 32 …… Connector.

Claims (2)

[Claims] 1. A plurality of stitch patterns forming a first stitch pattern group, which are provided with an internal memory for storing stitch data relating to a plurality of stitch patterns that can be selectively read, and are sewn according to the stitch data. In the sewing machine that forms the stitches, the stitch data for forming a plurality of stitch patterns forming the second pattern stitch group different from the first stitch pattern group and the stitch pattern formed by these stitch data. An external storage device that has an external memory that stores the image display data for displaying the image of the above, and is detachably configured on the sewing machine body, and a desired stitch from the second stitch pattern group in the external memory. With the start of selection from the selection operation means operated to select the stitch pattern and the second stitch pattern group using the selection operation means, the selected stitch in the second stitch pattern group is started. According to the above-mentioned figure display data, the figure of the eye pattern is displayed.
The display means for displaying the first stitch pattern stored in the external memory in order before the start of sewing, and the stitch data of the desired stitch pattern displayed on the display means are displayed. From external memory
A sewing machine characterized in that it is provided with a control means for reading on the sewing machine side and controlling sewing based on the stitch data. 2. The display means according to claim 1, wherein when a stitch pattern in the first stitch pattern group is selected, the display means displays the content representing the selected stitch pattern. Sewing machine.