JP3957330B2 - Sewing machine with pattern enlargement / reduction function - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a sewing machine having an enlargement / reduction function.
[0002]
[Prior art]
In addition to normal sewing by controlling the sewing needle and controlling the cloth feed, a sewing machine is known in which a cloth is fixed to an embroidery frame and the embroidery frame is controlled to move in the X and Y directions to enable embroidery. The embroidery pattern is usually configured so that data is stored in advance in a memory or the like, and this data is read out and the embroidery pattern is formed while performing the XY control.
Among such sewing machines that can be embroidered, sewing machines having an enlargement / reduction function have already been proposed in which the size of an embroidery pattern can be enlarged / reduced by an operator's designation.
[0003]
[Problems to be solved by the invention]
However, the conventional enlargement / reduction function simply enlarges / reduces the pattern, and selection such as omission of the pattern cannot be performed at all. Therefore, for example, when a pattern is reduced, there is a problem that if a large pattern is reduced as it is, the pattern is concentrated in a small area and the appearance is extremely deteriorated.
The present invention has been made to solve the above-described problems of the prior art, and an object thereof is to provide a sewing machine capable of selecting a pattern constituting an embroidery pattern.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, a sewing machine having a pattern enlargement / reduction function of the present invention comprises means for designating the size of a pattern formed based on data representing a sewing pattern, and means for designating the size. Size adjusting means for instructing the enlargement / reduction of the sewing pattern based on the designation, a common part that is always used regardless of the designation of the size by the means for designating the size, and the size by the means for designating the size A storage unit that stores data representing a sewing pattern having a plurality of selection units selected in accordance with the designation of the data into a common data corresponding to the common unit and a selection data corresponding to the selection unit. means, from the data representing the sewing pattern, select the common data, so as to further reduce the number of the sorting unit according to the specified size is reduced by means for specifying the size, sorting sorting data Means that, the common data and the sorted predetermined extracting data, characterized in that and a stitch forming means for performing a pattern sewing based on an instruction from the size adjustment means.
The data representing the sewing pattern may be provided with an instruction code, and the selecting means may select the data based on the instruction code.
Further, the means for sorting may further include means for designating data to be sorted.
The data representing the stitch pattern may be stitch data directly representing a stitch, or means for creating stitch data from data representing a predetermined point as data representing a predetermined point of the pattern such as so-called vertex data. It is also possible to provide further.
[0005]
[Action]
The storage means stores data representing the sewing pattern. The size of the pattern formed on the basis of the data representing the sewing pattern is designated by means for designating the size, and the enlargement / reduction of the sewing pattern is designated by the size adjusting means based on the designation.
The storage means includes a common part that is always used regardless of the size designation by the means for designating the size, and a plurality of selection units that are selected according to the size designation by the means for designating the size. The data representing the sewing pattern having the above is divided into common data corresponding to the common portion and selection data corresponding to the selection portion and stored.
Also in response to specified size by means for specifying the size, data representing a predetermined pattern from the data representing a plurality of patterns forming the stitch pattern Ru is selected by means of selection.
The selecting means selects the selected data so that the common data is selected from the data representing the sewing pattern, and the number of selecting sections is reduced as the size specification by the means for specifying the size is further reduced. To do . Pattern stitching is executed by the stitch forming means based on the common data, the selected sorting data selected, and an instruction from the size adjusting means .
Further, when the data representing the stitch pattern is data representing a predetermined point of the pattern such as vertex data, the stitch data is created from the data representing the predetermined point.
[0006]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIG. 3, the sewing machine of the present invention has a carriage 118 as an XY moving means 9 described later on an sewing machine frame X, an embroidery frame 119 supported by the carriage 118, and a needle bar 120 as a stitch forming means 7 and a needle. 121.
A cloth is attached to the embroidery frame 119, and embroidery sewing is performed by moving the carriage 118 in the xy direction and moving the needle bar 120 and the needle 121 up and down. The embroidery sewing can be selected by a sewing mode selection button 104. When the embroidery sewing is not performed, the normal sewing mode is set and the needle bar 120 and the needle 121 are moved up and down and a feeding device (not shown). Normal sewing is executed by the cloth feed.
[0007]
As shown in FIG. 1, a plurality of embroidery sewing pattern data is stored in the sewing pattern data storage means 1, and one pattern can be selected by the pattern selection means 2. In this embodiment, patterns from A to N are stored, and one of the patterns is selected.
The data of each pattern is composed of a common portion 1a and a sorting portion 1b. The common portion 1a is always used data, and the sorting portion 1b is selectively used data.
In this embodiment, the data stored in the sewing pattern data storage means 1 is stitch data (coordinate data) that designates each stitch that is actually sewn by the needle 121.
[0008]
The data stored in the sewing pattern data storage means 1 is output to the data selection means 4 where predetermined data in the selection section 1b is selected. In this embodiment, the data selection unit 4 receives the size designation signal from the size designation unit 3 and automatically selects the selection unit 1b according to the size of the designated pattern.
[0009]
The selection unit 1b selected by the common unit 1a and the data selection unit 4 is converted by the size adjustment unit 5 into data having the size specified by the size specification unit 3, and is driven by the sewing machine motor drive control unit 6 and the XY motor. It is sent to the control means 8. The sewing machine motor drive control means 6 controls the stitch formation means 7 described above, while the XY motor drive control means 8 is configured to control the XY movement means 9 to embroidery a predetermined pattern.
[0010]
The relationship between the size designation and the selection of the sorting unit 1b will be described with reference to FIG.
In this embodiment, the pattern A is composed of a pattern of a girl, a dog and shoes as shown in the figure, and the data stored in the sewing pattern data storage means 1 includes a shoe data group a, a girl data group a, a dog data group c, The tie data group D, the hat decoration data group E, and the shoe decoration data group data group n = 1-6.
This pattern A is configured to be formed as an embroidery pattern of three sizes of large, medium and small as shown in the figure by designation by the size designation means 3. In the large pattern, all the patterns of the shoe data group a, the girl data group i, the dog data group c, the tie data group d, the hat decoration data group o, and the shoe decoration data group are formed. All patterns are formed except for the decoration data group. Furthermore, in the small pattern, the tie data group d, the hat decoration data group o, and the shoe decoration data group pattern are omitted, and the embroidery pattern is formed only from the shoe data group a, the girl data group i, and the dog data group c. Is configured to do.
[0011]
Such data of the shoe data group A, the girl data group A, the dog data group C, the tie data group D, and the hat decoration data group E are stored in the sewing pattern data storage means 1 as shown in FIG. . The shoe data group a, the girl data group a, and the dog data group c are common parts 1a that are always used for large, medium, and small patterns regardless of the size of the pattern that is formed. The data group O is a sorting unit 1b- (1) used for large and medium patterns. Further, the shoe ornament data group is a sorting unit 1b- (2) used only for a large pattern.
The distinction between the common part 1a, the sorting part 1b- (1), and the sorting part 1b- (2) is made by the head address information α described at the head of the data. The first addresses 01, 0A, 11, 19, 1D, and EF of each data group are stored with the common part 1a, the sorting part 1b- (1), and the sorting part 1b- (2) distinguished. In this embodiment, a flag indicating whether or not sorting is set is set in relation to the size designation, and n = 1 to 3 are sorted in all large, medium and small, and n = 4 and 5 are sorted in large. Further, the data is structured so that n = 6 is sorted by small.
[0012]
FIG. 8 shows an example of another pattern, and shows that the skirt pattern, tie, necklace, cheek shadow, and ribbon are saved in the reduced pattern. This data structure is also classified into a common part 1a, a selection part 1b- (1),-(2), etc., as shown in FIG.
In the above description, the case of enlarging / reducing to three sizes of large, medium, and small has been described. However, the present invention is not limited to this, and may be enlarged or reduced to a large number of three or more sizes. It is also possible to configure to be enlarged or reduced to two sizes, and the omission of the pattern and the data structure of the sewing pattern data storage means 1 associated therewith may be divided according to the number of enlargement / reduction.
[0013]
FIG. 9 shows another data structure of the sewing pattern data storage means 1. In the data structure of FIG. 7, data selection is performed using the head address of the data group as an index. However, in the data structure of FIG. 9, the data type of the common unit 1a, the selection unit 1b, etc. is included in each stitch data of each group. An index representing the above is attached, and data is selected every time data is read. Here, “11” is the common unit 1a, “10” is the sorting unit 1b- (1), and “01” is the sorting unit 1b- (2).
[0014]
FIG. 2 is a block diagram showing a hardware configuration, and this embodiment will be further described in detail in conjunction with FIG.
The CPU 100 controls the sewing machine in accordance with a program stored in the program storage device 101, and controls the sewing machine motor drive circuit 110 at a speed instructed by a rotational speed command device 103 which is a stepping type speed controller. The stitch forming mechanism 112 is driven at a sewing speed corresponding to the designated speed by rotating the motor 111. As shown in FIG. 3, the stitch formation mechanism 112 includes a needle bar 120, a needle 121, and a cloth feed mechanism (not shown) so as to execute predetermined sewing. The number of rotations of the sewing machine motor 111 is detected by a motor rotation detection sensor 113 and fed back to the CPU 100 to be used for speed control.
The sewing machine capable of embroidery sewing includes an XY motor driving circuit 115, an XY motor 116, and an XY moving mechanism 117 in addition to the sewing machine motor driving circuit 110, and is common to the patterns A to N shown in FIG. 7 or FIG. Pattern sewing is executed on the basis of the pattern data from the stitch data storage device 10 that stores the la and the selection unit 1b. As shown in FIG. 3, the XY movement mechanism 117 includes a carriage 118 and an embroidery frame 119, and moves the cloth attached to the embroidery frame 119 in the XY direction to execute embroidery sewing.
The timing signal generator 114 is used for detecting the rotational phase of the upper shaft of the sewing machine body, detecting the vertical movement of the needle 121, and taking the timing of driving in the X and Y directions by the XY motor driving circuit 115. The CPU 100 inputs the timing signal and controls the XY motor driving circuit 115.
The above-described embroidery sewing and normal sewing are performed by operating the sewing mode selection button 104. The sewing mode selection button 104 is provided on the front portion of the sewing machine frame X as shown in FIG.
A display device 106 is further provided in the front portion, and various displays are performed by the display control device 105 in accordance with commands from the CPU 100 as shown in FIG.
Reference numeral 11 denotes a temporary storage device.
The patterns A to N stored in the stitch data storage device 10 can be selected by the pattern selection button 20. In this embodiment, the pattern selection button 20 is a touch panel formed on the liquid crystal panel of the display device 106, and a pattern can be selected in accordance with the illustration of the display device 106.
[0015]
In this embodiment, a pattern size designation button 30 which is a size designation means 3 is provided on the sewing machine frame X so that three large, medium and small patterns can be designated. In response to the designation of the pattern size designation button 30, the size adjustment device 50 operates, executes the data enlargement / reduction processing from the stitch data storage device 10, and controls the XY motor drive circuit 115 via the CPU 100. To do.
Various known methods can be used for the enlargement / reduction processing by the size adjusting device 50. Usually, the coordinates in the X and Y directions are reduced according to the enlargement / reduction ratio, and further, the stitches are omitted as necessary. Also do.
[0016]
The CPU 100 has a software function corresponding to the data selection means 4 and selects data stored in the stitch data storage device 10 according to the size of the pattern designated by the pattern size designation button 30. Based on the selected data and the designated size, the XY motor driving circuit 115 is controlled to form an embroidery pattern as shown in FIG.
Note that the selection portion designation button 26 in FIG. 3 is applied to another embodiment, which will be described later.
[0017]
Next, the operation will be described. First, the operation in the case of the data structure of FIG. 7 will be described with reference to FIG.
When the pattern selection button 20 is pressed to select a pattern (step S1), the CPU 100 reads the head address information α of the selected pattern data from the stitch data storage device 10 (step S2), and starts the head address information α. Information, that is, the pattern size of the data group n and whether or not to execute sewing are stored (step S3). Next, when the size of the pattern formed by the pattern size designation button 30 is designated (step S4), the CPU 100 stores the designated size (magnification) (step S5). When there is a sewing machine start command from the rotational speed command device 103 (step S6), the data group number n = 1 is set (step S7), and the data group n is a data group for executing sewing at the stored magnification. If it is not a sewing execution data group, 1 is added to n (step S16), and it is determined again whether it is a sewing execution data group. If it is a sewing execution data group, it waits for a timing signal from the timing signal generator 114 (step S9), and reads from the stitch data at the head address of the data group n for each timing signal (step S10). Then, the scale adjustment device 50 performs enlargement / reduction of the read data (step S11), and drives the XY motor drive circuit 115 based on the enlarged / reduced data (step S12) to execute stitch formation (step S12). Step S13). Then, it is determined whether or not the data of the data group n has been completed (step S14). If it has not been completed, the process jumps to step S9 to read the data at the next address and repeat the same operation. If the data of the data group n has been completed, it is determined whether or not all the data groups of the selected pattern have been completed (step S15), and if completed, the operation is terminated. If not completed, 1 is added to n (step S16), and the same operation is repeated from step S8 on the next data group.
Thus, in the example of the pattern of FIG. 6, the selection of the pattern shoe data group A, the girl data group A, the dog data group C, the tie data group D, the hat decoration data group E, and the shoe decoration data group A is the size of the pattern. Accordingly, a pattern as shown in FIG. 6 is formed.
[0018]
Next, the operation when the data structure of the stitch data storage device 10 is FIG. 9 will be described with reference to FIG.
When the pattern selection button 20 is pressed to select a pattern (step S20) and the size of the pattern formed by the pattern size designation button 30 is specified (step S21), the CPU 100 selects the specified size. (Magnification) is stored (step S22). When there is a sewing machine start command from the rotational speed command device 103 (step S23), it waits for a timing signal from the timing signal generator 114 (step S24), and the stitch data of the pattern selected for each timing signal is started from the head address. Read (step S25). Then, it is determined based on the data type of FIG. 9 whether or not the read data is data to be sewn corresponding to the designated pattern size (step S26). Return to. If it is sewing execution data, the size adjusting device 50 enlarges / reduces the data (step S27), and drives the XY motor drive circuit 115 based on the enlarged / reduced data (step S28) to form a stitch. Execute (Step S29). Then, it is determined whether or not the data of the selected pattern has been completed (step S30). If it has not been completed, the process jumps to step S24 to read the data at the next address and repeat the same operation. When the data is finished, the operation is finished.
Similarly, in the example of the pattern in FIG. 6, the selection of the pattern shoe data group A, the girl data group A, the dog data group C, the tie data group D, the hat decoration data group E, and the shoe decoration data group K is selected. The pattern is formed as shown in FIG.
[0019]
Next, another embodiment will be described.
FIG. 10 is a functional block diagram of the embodiment in the case where other data representing the sewing pattern such as vertex data is stored in the sewing pattern data storage means 1 ′ instead of the stitch data.
The seam data uses coordinate data for each seam that the needle 121 actually sews, but a large capacity memory is required to store the seam data. Therefore, a method for storing vertex data and the like instead of the stitch data is conventionally known. The vertex data is vertex data for each block of the pattern, and the memory capacity for storing the data is small, but conversion from the vertex data to the stitch data is necessary.
[0020]
The vertex data stored in the sewing pattern data storage means 1 ′ is similarly classified and stored in the common part 1a ′ and the selection part 1b ′, and the pattern selection means 2 can select the pattern in the same manner. Yes. In this embodiment, patterns from A to N are similarly stored, and one of the patterns is selected.
The data stored in the sewing pattern data storage unit 1 ′ is output to the data selection unit 4 where predetermined data in the selection unit 1b ′ is selected. Also in this embodiment, the data selecting means 4 receives the size specifying signal from the size specifying means 3 and automatically selects the selecting section 1b 'according to the specified pattern size.
[0021]
Since the data in the sewing pattern data storage means 1 ′ is vertex data, this vertex data is input to the stitch data creating means 15 and converted into actual stitch data, which is stored in the temporary storage means 16.
The stitch data temporarily stored in the temporary storage means 16 is converted into data of the size specified by the size specifying means 3 in the size adjusting means 5 and sent to the sewing machine motor drive control means 6 and the XY motor drive control means 8. It is supposed to be. The sewing machine motor drive control means 6 controls the stitch formation means 7 described above, while the XY motor drive control means 8 is configured to control the XY movement means 9 to embroidery a predetermined pattern.
[0022]
FIG. 11 is a block diagram showing the hardware configuration. The vertex data stored in the vertex data storage device 12 is converted into stitch data in the CPU 100 by the stitch data creation program stored in the stitch data creation program storage device 25. It is configured to be stored in the temporary storage device 11.
The other configuration is the same as that shown in FIG.
[0023]
With reference to FIG. 12, the operation in the case where the data structure stored in the vertex data storage device 12 has a data type index attached to each address as shown in FIG. 9 will be described.
When the pattern selection button 20 is pressed to select a pattern (step S40), and the size of the pattern formed by the pattern size designation button 30 is specified (step S41), the CPU 100 selects the specified size. (Magnification) is stored (step S42). Then, the head address of the selected pattern data (vertex data) is read (step S43), it is determined whether or not the data is sewing execution data (step S44), and if it is not sewing execution data, the process returns to step S43. To read the data at the next address. If it is sewing execution data, stitch data is created from the vertex data (step S45) and temporarily stored in the temporary storage device 11 (step S46). Then, it is determined whether or not all the data of the selected pattern has been completed (step S47). If it has not been completed, the process returns to step S43 to read the data of the next address.
When the data reading is completed and there is a sewing machine start command from the rotation speed command device 103 (step S48), the timing signal from the timing signal generator 114 is waited (step S49), and the timing signal is stored in the temporary storage device 11 for each timing signal. The stored stitch data is read from the head address (step S50).
Then, the size adjustment device 50 enlarges / reduces the data (step S51), drives the XY motor drive circuit 115 based on the enlarged / reduced data (step S52), and executes the stitch formation (step S53). . It is determined whether or not the stitch data in the temporary storage device 11 has been completed (step S54). If it has not been completed, the process jumps to step S49 to read the next address data and repeat the same operation. When the data is finished, the operation is finished.
Similarly, in the example of the pattern in FIG. 6, the selection of the pattern shoe data group A, the girl data group A, the dog data group C, the tie data group D, the hat decoration data group E, and the shoe decoration data group K is selected. The pattern is formed as shown in FIG.
[0024]
In the above-described embodiments, all are configured to automatically select data in accordance with the size designation by the size designation means 3, but the present invention is not limited to this. It is also possible to select data separately.
[0025]
FIG. 13 shows an embodiment thereof.
Similarly, in this embodiment, a plurality of embroidery sewing pattern data is stored in the sewing pattern data storage means 1, and one pattern can be selected by the pattern selection means 2. Also in this embodiment, patterns from A to N are stored in the same manner, and one of the patterns is selected.
The data of each pattern is composed of a common part 1a and a sorting part 1b. Similarly, the common part 1a is always used data and the sorting part 1b is selectively used data. The data stored in the sewing pattern data storage means 1 is coordinate data that designates each stitch that is actually sewn by the needle 121.
[0026]
The data stored in the sewing pattern data storage means 1 is output to the data selection means 4 where predetermined data in the selection section 1b is selected. In this embodiment, the data selection means 4 receives the data selection part designation signal from the selection part designation means 17 and selects the selection part 1b. The designation of the data selection unit in the selection unit designation means 17 may be configured to designate the start address of the data group and the data group number n in the case of the data structure as shown in FIG. Further, in the case of the data structure as shown in FIG. 9, it is possible to configure so that the data type is directly designated.
Various methods may be employed such as displaying a pattern on the display device 106 and designating the selection part while viewing the pattern, or by designating the selected part directly on the display pattern image.
[0027]
The selection unit 1b selected by the common unit 1a and the data selection unit 4 is converted by the size adjustment unit 5 into data having the size specified by the size specification unit 3, and is driven by the sewing machine motor drive control unit 6 and the XY motor. It is sent to the control means 8. The sewing machine motor drive control means 6 controls the stitch formation means 7 described above, while the XY motor drive control means 8 is configured to control the XY movement means 9 to embroidery a predetermined pattern.
[0028]
FIG. 14 is a block diagram showing a hardware configuration, which is provided with a selection unit designation button 26 so that the selected data is selected by the CPU 100.
The selection portion designation button 26 is formed on the front panel of the sewing machine frame X as shown in FIG. 3, and a data group can be designated here.
Other configurations are the same as those shown in FIG.
[0029]
Next, the operation when the data structure of the stitch data storage device 10 is FIG. 9 will be described with reference to FIG.
When the pattern selection button 20 is pressed to select a pattern (step S60) and the size of the pattern formed by the pattern size designation button 30 is specified (step S61), the CPU 100 selects the specified size. (Magnification) is stored (step S62). Next, when the selection part is designated from the selection part designation button 26 (step S63), the designated selection part is stored (step S64).
When there is a sewing machine start command from the rotational speed command device 103 (step S65), the timing signal from the timing signal generator 114 is waited (step S66), and the stitch data of the pattern selected for each timing signal is stored at the head address. (Step S67). Then, it is determined based on the data type of FIG. 9 whether or not the read data is data to be sewn corresponding to the designated pattern size (step S68). Return to, and read the data at the next address. If it is sewing execution data, the size adjustment device 50 enlarges / reduces the data (step S69), and drives the XY motor drive circuit 115 based on the enlarged / reduced data (step S70) to form a stitch. Execute (Step S71). Then, it is determined whether or not the data of the selected pattern has been completed (step S72). If it has not been completed, the process returns to step S66, the next address data is read, and the same operation is repeated. When the data is finished, the operation is finished.
Similarly, in the example of the pattern in FIG. 6, the selection of the pattern shoe data group A, the girl data group A, the dog data group C, the tie data group D, the hat decoration data group E, and the shoe decoration data group K is selected. The pattern is formed as shown in FIG.
[0030]
【The invention's effect】
As described above, since the sewing machine having the pattern enlargement / reduction function of the present invention can select predetermined pattern data by the selecting means, it is possible to form a pattern suitable for the size of the pattern. It is. That is, since you have to be divided into selection data corresponding to the common data and the selection unit corresponding to the common part of the pattern data pattern with a common portion and the sorting unit, to select only sorting data, always stitch run There is common data to be performed, the pattern consistency can be maintained, and there is an advantage that the pattern is not easily confused by the data selection. Further, since the number of sorting portions is reduced as the size designation becomes smaller, an appropriate pattern according to the size of the pattern to be formed can be obtained.
Further, since the sewing machine according to the third aspect is provided with means for designating data to be selected, there is an effect that the operator can arbitrarily select the data.
[Brief description of the drawings]
FIG. 1 is a functional block diagram showing an embodiment of the present invention.
FIG. 2 is a block diagram showing a configuration of an embodiment of the present invention.
FIG. 3 is an external perspective view showing an embodiment of the present invention.
FIG. 4 is a flowchart for explaining the operation of an embodiment of the present invention.
FIG. 5 is a flowchart for explaining another operation of the embodiment of the present invention.
FIG. 6 is an explanatory diagram of a relationship between enlargement / reduction of an embroidery pattern and pattern selection.
FIG. 7 is an explanatory diagram showing an example of the data structure of pattern data.
FIG. 8 is another explanatory diagram of the relationship between the enlargement / reduction of the embroidery pattern and the pattern selection.
FIG. 9 is an explanatory diagram showing another embodiment of the data structure of pattern data.
FIG. 10 is a functional block diagram showing another embodiment of the present invention.
FIG. 11 is a block diagram showing the configuration of another embodiment of the present invention.
FIG. 12 is a flowchart for explaining the operation of another embodiment of the present invention.
FIG. 13 is a functional block diagram showing still another embodiment of the present invention.
FIG. 14 is a block diagram showing a configuration of still another embodiment of the present invention.
FIG. 15 is a flowchart for explaining the operation of still another embodiment of the present invention.
[Explanation of symbols]
1: sewing pattern data storage means, 2: pattern selection means, 3: size designation means, 4: data selection means, 5: size adjustment means, 6: sewing machine motor drive control means, 7: stitch formation means, 8: XY motor drive control means, 9: XY movement means, 10: stitch data storage device, 11: temporary storage device, 12: apex data storage device, 15: stitch data creation means, 16: temporary storage means, 17: selection portion designation Means 20: Pattern selection button 25: Stitch data creation program storage device 26: Selection portion designation button 30: Pattern size designation button 50: Size adjustment device 100: CPU 101: Program storage device 103 : Rotational speed command device, 104: sewing mode selection button, 105: display control device, 106: display device, 110: sewing machine motor drive circuit, 111: sewing machine motor, 112 Stitch formation mechanism 113: Motor rotation detection sensor 114: Timing signal generator 115: XY motor drive circuit 116: XY motor 117: XY movement mechanism 118: Carriage 119: Embroidery frame 120: Needle bar 121: Needle.

Claims (5)

Means for designating the size of the pattern formed based on the data representing the sewing pattern;
A size adjusting means for instructing the enlargement / reduction of the sewing pattern based on designation by the means for designating the size;
A sewing pattern having a common part that is always used regardless of the size designation by the means for designating the size, and a plurality of selection units selected according to the size designation by the means for designating the size Storage means for classifying and storing data representing the common data corresponding to the common part and the selection data corresponding to the selection part;
Selecting the common data from the data representing the sewing pattern, and further selecting the selection data so as to reduce the number of selection units as the size specification by the means for specifying the size decreases;
Seam forming means for performing pattern sewing based on the common data and predetermined selected data selected and an instruction from the size adjusting means;
A sewing machine with a pattern enlargement / reduction function characterized by having The data representing the sewing pattern is given an instruction code,
The selecting means selects data based on the instruction code;
A sewing machine comprising the pattern enlargement / reduction function according to claim 1. Means for designating data to be sorted by the sorting means;
Sewing machine having a scaling function of the pattern according to any one of claims 1 to 2. The data representing the stitch pattern is stitch data directly representing the stitch,
Sewing machine having a scaling function of the pattern according to any one of claims 1 to 3. The data representing the sewing pattern is data representing a predetermined point of the pattern to be formed,
Means for creating stitch data from data representing the predetermined point;
Sewing machine having a scaling function of the pattern according to any one of claims 1 to 4.

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