JPH04314491A - Embroidery method - Google Patents

Abstract

PURPOSE:To prevent the generation of any gap, even if the stitch of a region sewn before is pulled by the stitch of a region sewn after when a plurality of regions are partially overlapped and embroidery is done on them. CONSTITUTION:When a region G3 is set to be sewn in the manner of overlapping with previously sewn regions G1, G2 after the regions G1, G2 are sewn before at the time of embroidering a plurality of regions G1-G4, the intersections P1-P4 of an inside outline L1 reducing the region G3 and stitches for embroidering the regions G1, G2 are operated and these intersections are added as stitches for embroidering respective regions G1-G2.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of embroidering a pattern consisting of a plurality of areas that partially overlap each other, and more particularly to embroidering overlapping areas.

0002

2. Description of the Related Art When embroidering a pattern, the pattern may be composed of a plurality of areas. In each of these multiple areas, stitches are formed by alternately connecting two opposing parts of the outline, and the stitch formation direction, embroidery start point, end point, etc. are set for each area, and the stitches are formed as a whole pattern. The embroidery is made to look good and to be performed efficiently. When a pattern consists of a plurality of regions in this way, the plurality of regions may partially overlap each other. For example, if a side that defines a part of the outline of one of two adjacent areas forms part of the outline of the other area, there may be a shift in the needle drop position or cover due to the formation of a seam. While gaps may occur at the boundary due to shrinkage or elongation of the processed material,
If the two regions are overlapped so that one side of the other region is located within the outline of the other region, the seams will overlap and the generation of gaps at the boundary will be avoided.

0003

However, when a plurality of areas are partially overlapped in this way, the appearance of the embroidery may become poor. When embroidering multiple areas partially overlapping, a seam is first formed in the overlapped area where other areas are overlapped, and then the seam in the area that overlaps the seam (referred to as the overlapping area) is formed first. Eyes will be formed, but at this time,
The seams in the overlapped area are pulled by the seams in the overlapped area, and gaps are created between the plurality of stitches formed in the overlapped area, so that the workpiece is visible and the appearance is poor. In particular, when the length of the stitches is long, such as when enlarging a pattern for embroidery, the amount of tension in the stitches in the overlapping area is large, and the gap between the stitches becomes large, resulting in poor appearance. Furthermore, if the directions of the stitches overlapped with each other cross each other, the stitches are likely to be pulled, resulting in poor appearance. SUMMARY OF THE INVENTION An object of the present invention is to provide an embroidery method that can form stitches without creating gaps when embroidering a plurality of areas partially overlapping each other.

0004

[Means for Solving the Problems] In order to solve the above-mentioned problems, the block data processing method of the present invention forms seams that alternately connect two opposing parts of outlines defining a plurality of regions. In addition to setting the needle drop position to
The present invention is characterized in that the needle drop position is also set inside an overlapping portion of an overlapping region in which another region is overlapped with a part of a plurality of regions. Note that "setting a needle drop position" herein includes both creating needle drop position data and actually dropping a sewing needle onto a workpiece to form a stitch.

[0005]

[Function] For overlapped areas, needle drop positions are set to form stitches that alternately connect two opposing parts of the outline, and for overlapping areas, the needle drop positions are set to form stitches that alternately connect two opposing parts of the outline, and for overlapping areas, the needle drop positions are set to form stitches that alternately connect two opposing parts of the outline. Stitches connecting the two parts alternately are formed, and needle drop positions are also set inside the overlapping parts. In this way, the length of the seam formed inside the overlapping part will be shorter than when the seam is formed by connecting two opposing parts of the outline, and Even if another seam is formed and a tensile force is applied, the seam will hardly shift, and even if it does, the shift will be minimal.

[0006]

[Effects of the Invention] As described above, according to the embroidery method of the present invention,
Even when embroidery is performed by partially overlapping a plurality of regions, there are almost no gaps between the seams in the overlapped regions, and the seams can be formed with good appearance. In addition, the needle drop position set inside the overlapping part of the overlapping area is often covered by the seam formed in the overlapping area and cannot be seen from the outside.
Even if the needle drop position is set at a position other than the outline of the area, the appearance will not deteriorate.

[0007]

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 2, 10 is a sewing machine table, and a bed 12 and a sewing machine frame 14 are provided on this sewing machine table 10. The sewing machine frame 14 includes a pedestal section 16 that stands up from the bed 12, and a pedestal section 16 that stands up from the bed 12.
and an upper arm 18 extending cantilevered from the upper end thereof and substantially parallel to the bed 12. A needle bar 22 is attached to the sewing machine frame 14 so as to be movable in the vertical direction by a needle bar stand (not shown), and a sewing needle 24 is fixed to the lower end thereof. The needle bar 22 is connected to the sewing machine motor 2 via a needle bar holder etc.
6 (see FIG. 3), and when the sewing machine motor 26 is driven, the needle bar 22 and the sewing needle 24 are caused to reciprocate up and down. An opening is formed in the upper surface of the bed 12. Although this opening is closed by the throat plate 30,
A needle hole 38 is formed in the needle hole 38, and the sewing needle 24 enters below the throat plate 30 through this needle hole 38, and forms a stitch in cooperation with a shuttle (not shown).

An embroidery frame 42 is mounted on the sewing machine table 10 and bed 12 so as to be movable in the X-axis direction, which is the left-right direction of the sewing machine, and in the Y-axis direction, which is the front-rear direction. The embroidery frame 42 has an annular outer frame 44 and an inner frame 46 that is fitted inside the outer frame 44.
6 holds the work cloth. A slide portion 48 extending in the X-axis direction is formed on the outer frame 44, and the sewing machine table 10
It is slidably fitted into a pair of guide pipes 50 provided above in the Y-axis direction. Both ends of these guide pipes 50 are supported by support stands 52 and 54. One support stand 52 is moved in the X-axis direction by a feed screw 56 and an X-axis feed motor 58, and the other support stand 54 is spaced apart from the upper surface of the sewing machine table 10. These slide parts 48, support stands 52, 5
4 is engaged with a pair of endless wires 60, and when the wires 60 are moved by a rotation transmission shaft 62 and a Y-axis feed motor 64, the slide portion 48 is moved in the Y-axis direction. The embroidery frame 42 is moved to any position in the horizontal plane by the movement of the support base 52 in the X-axis direction and the movement of the slide part 48 in the Y-axis direction, and this movement and the vertical movement of the sewing needle 24 allow the embroidery frame 42 to be processed. Embroidery is applied to the cloth.

This sewing machine is controlled by a control device 70. The control device 70 includes a CPU 72 as shown in FIG.
, a ROM 74, a RAM 76, a bus 78, and the like. An input interface 80 is connected to the bus 78 .
A keyboard 82 and an external storage device 84 are connected to the . The keyboard 82 is used to input embroidery patterns, thread density, etc., and is provided with various keys necessary for inputting data, including keys for specifying embroidery patterns such as alphabets, numbers, symbols, and kana. There is. Further, the external storage device 84 stores outline data that defines the outline of a pattern to be embroidered. The outline of the pattern is a group of coordinates, a vector,
It is defined by formula etc.

Bus 78 also includes an output interface 10.
0 is connected, and the output interface 100 is connected to motor drive circuits 104, 106, 108 and display drive circuit 11.
0 to the sewing machine motor 26, X-axis feed motor 58, Y
A shaft feed motor 64 and a display device 112 are connected. The display device 112 displays comments to support data input, input data, the shape of the pattern to be embroidered, etc. on the screen. Further, as shown in FIG. 4, the RAM 76 includes an outline data area 114, a block data area 116, a thread density data area 118, a needle drop position data area 120, and first, second, and third counters 1.
22, 124, 126, etc. are provided along with a working area. Furthermore, the ROM 74 contains a needle drop position data creation routine shown in the flowchart in FIG. 1, a block group overlap determination routine shown in FIG. 13, an inner outline setting routine shown in FIG. 14, and an overlapped needle drop position setting routine shown in FIG. Various routines necessary to perform embroidery are stored.

In this embodiment, the pattern is divided into square or triangular blocks, and embroidery is performed for each block, and stitches are alternately stitched on two of the four or three sides that define the square or triangle. This is done by connecting each block with stitches and filling the inside of each block with stitches. Therefore, block data is set for each block. The block data is
It includes coordinate data of a point that defines a block (referred to as a block definition point) and number data attached to the block definition point. In the case of the rectangular block 132 shown in FIG.
The two block defining points that define one of the two sides 134 that are connected to each other by a seam are numbered 1 and 3, and the two block defining points that define the other side 134 are numbered 1 and 3. are numbered 2 and 4. At this time, No. 1 and No. 2 are located on one side of the embroidery progress direction (the direction in which the pattern is filled with stitches, indicated by the arrow in the figure), and No. 3 and No. 4 are located on the other side. Number data is assigned so that it is located at . In the case of block 132 for which block data has been created in this manner, seams are formed as shown in FIG. Furthermore, when forming a triangle like the block 136 shown in FIG. It is assumed that there is a block regulation point of
Number data is attached to each block specified point of two sides 138 that are alternately connected by a seam. A seam is formed in the block 136 as shown in FIG. In addition, block 4
Among the sides of the book, the sides that are connected to each other by seams are called the main sides.
An edge that overlaps an edge of an adjacent block is called a subedge.

[0012] Furthermore, there are cases where a plurality of blocks are lined up to form one block group, and in this case, one block group is one area constituting a pattern. In the case of a block group, four points are required to define the first block, but in the case of subsequent blocks, two points are common to the previous block, and setting two points defines the block. be able to. Therefore, the coordinate data of the block data created for the first block includes the coordinates of four points, and number data from 1 to 4 is attached to those coordinates, whereas the block data created for the following block The coordinate data of the data includes the coordinates of two points, and number data No. 3 and No. 4 are attached to these coordinates.

The pattern 140 shown in FIG.
It consists of block groups G1 to G4. The first block group G1 consists of the first to third blocks B1 to B3, and the second
Block group G2 is the fourth to seventh blocks B4 to B7
Therefore, the third block group G3 is formed from the 8th to 10th block groups B8 to B10, and the fourth block group G4 is formed from the 11th to 10th blocks.
Each of the 13th blocks consists of B11 to B13, and the first
Embroidery is performed in the order of block group G1, second block group G2, third block group G3, and fourth block group G4. Pattern data is created for each block group for such a pattern. The pattern data consists of block data that defines the blocks constituting each block group, outline data that defines the outline of the block group, thread density data, etc., and is stored in the external storage device 8 according to the embroidery order of the block groups.
It is stored in 4. The outline data consists of a plurality of block specifying points arranged in the order of clockwise progress along the outline from the embroidery start point. In the pattern data, first, the outline data,
Data other than the block data such as thread density data is stored, and then the block data is stored. When the pattern data is read from the external storage device 84, the data changes from the block data to the data other than the block data. It can be seen that the block group changes by changing.

In this way, the pattern 140 is composed of four block groups G1 to G4, among which the first block group G1 and the third block group G3 overlap, and the second block group G2 and the third block group G2 overlap. The block group G3 overlaps, the third block group G3 and the fourth block group G4 overlap, and the directions of the stitches formed in these mutually overlapping block groups are different. Therefore, the seams formed in the overlapping parts of the stacked block group where the block groups are stacked are pulled by the seams formed in the stacked block group, which is the overlapping block group, and there is a gap between the seams. may occur. In particular, when enlarging a pattern for embroidery, the length of each stitch becomes longer, so the amount of tension in the stitch is large, resulting in a large gap and poor appearance. Therefore, when enlarging a pattern for embroidery, the needle drop position data creation routine shown in Figure 1 is executed. It is designed to create data that does not create gaps in the eyes. Hereinafter, creation of needle drop position data will be explained using an example in which the pattern 140 is enlarged and embroidered. It is assumed that the enlargement process of the pattern data is performed in advance before the creation of the needle drop position data.

First, in step S1 (hereinafter abbreviated as S1; the same applies to other steps), a pattern to be embroidered is set and enlarged pattern data is read from the external storage device 84. Of the read pattern data, outline data is stored in the outline data area 114, thread density data is stored in the thread density data area 118, and block data is stored in the block data area 11.
6. In the case of pattern 140, the first block group G
The pattern data is read in order from No. 1, and the block data is stored in the block data area 116 in association with a block group and the blocks included in the block group, as shown in FIG. Next, after the total number of block groups N (4 in the case of pattern 140) is set in S2,
In S3, it is determined whether or not there is overlap between a plurality of block groups. This determination is performed according to the block group overlap determination routine shown in FIG.

Whether or not two block groups partially overlap each other is determined by whether the block definition point of the block group to be embroidered first is located within the outline of the block group to be embroidered later. It is done depending on whether or not. First, in S11, the count value C1 of the first counter 122 is set to 1. The count value C1 specifies the block group for which the presence or absence of overlap is determined, and in the case of pattern 140, first the first block group G
1 is determined. Then, in S12, C
The total number M of points defining the first block group is set. Subsequently, in S13, the count value C2 of the second counter 124 is set to the value obtained by adding 1 to the count value C1. The count value C2 specifies the block group to be embroidered after the C1th block group, and first, the second block group G2 is specified. Then, in S14, depending on whether the count value C2 is larger than the total number of block groups N, it is determined whether or not there is an overlap between the C1th block group and all the block groups to be embroidered after it. It is determined whether or not this has been performed, but this determination is NO, and the count value C3 of the third counter 126 is set to 1 in S15. Count value C3
is the count value of the number of specified points that define the C1-th block group, and below, S16 to S18 are executed, and C
The first block group (here, the first block group G1
) is located within the outline of the C2th block group (here, the second block group G2) to determine whether or not there is an overlap.

In S16, first, the C3th specified point (here, the first stored specified point among the plurality of specified points included in the outline data set for the C1th block group) and the external shape In the line data, a side whose both ends are defined by the specified point stored next to the C3th specified point (in this case, the second specified point), and a plurality of sides forming the outline of the C2nd block group. A determination is made as to whether or not they intersect. If they intersect, when proceeding clockwise along the outline of the C2 block group, the above C3
It is determined whether the specified point is located on the right side of the intersection side, and if it is located on the right side, the specified point is C
It is determined that it is located within the outline of the second block group, and that the C1-th block group and the C2-th block group overlap. The determination in S16 is performed for each specified point, and if the side with the specified point as one end does not intersect with the outline of the C2th block group, and even if it intersects, it is not inside the outline, the judgment in S16 is made. The determination is NO, the count value C3 is incremented by 1 in S17, and it is determined in S18 whether or not determinations have been made for all specified points. 1st
Since the outline of block group G1 and the outline of second block group G2 do not intersect, S
The result of the determination in step 16 is NO, and steps S16 to S18 are repeatedly executed until the determination in step S16 is made for all points defining the first block group G1. And S18
If the determination becomes YES, the count value C2 is set in S19.
is increased by 1 to 3, and the routine is executed in S1.
Return to 4. Since C2 is 3, the determination in S14 is NO, and after the count value C3 is set to 1 in S15, S16 to S18 are executed and the first block group G
It is determined whether or not there is an overlap between G.1 and the third block group G3.

The sides forming the outline of the first block group G1 and the sides forming the outline of the third block group G3 intersect. Third block B3 of first block group G1
When the determination in S16 is made regarding the No. 4 prescribed point that defines the
It is determined whether or not the side whose ends are the specified point No. 4 that defines It intersects the side (intersection side) whose ends are the No. 3 specified point of the 8th block B8 of the 3-block group G3 and the No. 3 specified point of the 9th block B9, and
Since the fourth specified point that defines , is located on the right side of the intersection when moving clockwise along the outline of the third block group G3, the determination in S16 is YES. Then, in S20, as shown in FIG. 16, the overlapping flag is set for the C1th block group (here, the first block group G1), and the overlapping flag is set for the C2th block group (here, the third block group G3). For blocks that are set and have the overlap flag set,
The block group to be stacked on which block group (
Here, the first block group G1) is stored.

Once the determination in S16 becomes YES and the overlapping flag and overlapping flag are set, even if there is a point among the specified points of the C1th block group that has not yet been determined in S16, no further No determination is made, and by executing S19, the designation of the block group whose overlap with the C1-th block group is determined is changed, and the execution of the routine is changed to S19.
Return to 14. Here, the count value C2 becomes 4, and then it is determined whether or not there is an overlap between the first block group G1 and the fourth block group G4, but since there is no overlap between them, all specified points of the first block group G1 are The determination in S16 is NO. Then, in S19, C
Since 2 is considered to be 5, the determination in S14 is YES, and S
In S21, the count value C1 of the first counter 122 is incremented by 1 to 2, and in S22 it is determined whether or not the presence or absence of overlap has been detected for all block groups, but the determination result is NO. Execution of the routine returns to S12.

The count value C1 is 2, the count value C2 is set to 3 in S13, and then it is determined whether or not there is an overlap between the second block group G2 and the third block group G3. Since these block groups G2 and G3 have an overlapping portion, the determination in S16 is YES, and the overlapping flag is set for the second block group G2, the overlapping flag is set for the third block group G3, and the second block Group G2 is stored as a block group to be overlapped. After this determination, count value C2
is set to 4, and the second block group G2 and the fourth block group G
A determination is made as to whether or not there is an overlap with 4, but this determination is NO. If the determination in S16 is made for all specified points of the second block group G2, the determination in S18 is Y.
ES, C2 is set to 5 in S19, and S14
is YES, S22 is NO, and the routine is executed in S1.
Return to 2. Then, it is determined whether the third block group G3 and the fourth block group G4 overlap. Since these have overlapping parts, the determination in S16 is YES, and the overlapping flag is set for the third block group G3, the overlapping flag is set for the fourth block group G4, and the third block group G3 is the overlapping target. Stored as a group of blocks. If this judgment is made, S
The determination in step 22 becomes YES and the execution of the routine ends.

Next, S4 is executed, and the needle drop positions are determined for each of the first to fourth block groups G1 to G4. The needle drop position is determined based on preset thread density data, and the needle drop position is stored in the needle drop position data area 120. For example, when the thread density is standard, the length of the line connecting the midpoints of the subsides of the block is calculated, and the length is divided by the standard stitch interval to determine the number of needle drop positions. Then, the two main sides of the block are each divided by this number of needle drop positions to find the needle drop positions.

Next, S5 is executed, and for the block group for which the overlapping flag has been set, an inner outline line that is similar to the outline of the block group and located inside the outline line is set. This setting is performed according to the inner outline setting routine shown in FIG. First, in S101, the count value C1 of the first counter 122 is set to 1, and then in S102, it is determined whether or not the overlap flag has been set for the C1-th block group. In the case of pattern 140, first, the determination in S102 is made for the first block group G1, but since the overlapping flag is not set, the determination result is NO, the count value C1 is increased by 1 in S109, and C1 is increased in S110. Whether or not all block groups have been processed is determined based on whether the number is greater than N, but the result of this determination is NO, and the execution of the routine returns to S102. Since the overlap flag is not set for the second block group G2, the determination in S102 is NO.

On the other hand, since the overlap flag is set for the third block group G3, the determination result in S102 is YES, and in S103, the outline of the C1th block group (here, the third block group G3) is configured. The total number of sides M is set. And S104
After the count value C3 of the third counter 126 is set to 1 in S105, the C3th side is set to a certain value inside that side (to the right when moving clockwise along the outline of the block group for which the overlapping flag is set). ) and find a straight line parallel to that side. The sides constituting the block group are obtained by sequentially reading out the block definition points stored in the outline data area 114,
After the inner straight line is calculated, the count value C3 is incremented by 1 in S106, and it is determined in S107 whether or not the inner straight line has been calculated for all sides, but this determination is NO, and the routine continues. Execution returns to S105. If the inner straight lines are set for all the sides constituting the outline of the third block group G3, the determination in S107 becomes YES and S108 is executed, and the intersection of the inner straight lines found in S105 is C1 The intersection is determined within the outline of the number block group, and the intersection thereof is taken as the point that constitutes the inner outline. By connecting these intersection points, an inner contour line L1 shown by a dotted line in FIG. 10 is obtained.

Next, in S102, it is determined whether or not the overlap flag is set for the fourth block group G4, but this determination is YES, and S103
~S108 is executed, and the inner contour line L2 is determined for the fourth block group G4. This inner outline line L2
If it is determined, the determination result in S110 becomes YES, and the execution of the routine ends.

Once the inner contour line has been determined in this manner, S6 is executed, and needle drop positions are set for the overlapping portions of the four block groups G1 to G4. This setting is performed according to the overlapping portion needle drop position setting routine shown in FIG. First, after the count value C1 is set to 1 in S1101, it is determined in S1102 whether or not the overlapping flag is set for the C1th block group (here, the first block group G1). Since the overlap flag is set for the first block group G1, the determination is YES, the count value C3 of the third counter 126 is set to 1 in S1103, and the stitch value obtained for the C1th block group in S1104 is A total number M is set. And S1
Among the plurality of stitches set for the C1-th block group in 105, the C3-th stitch and the block group (here, the third block group G3) in which the C1-th block group is the overlapping target block group are set. The intersection point with the inner contour line (L1) is determined. An overlapping flag is set for the overlapping block group that is overlaid on the block group, and the data of the overlapping target block group is stored in the block data area 116 in association with each other, and from these overlapping flags and data, the C1-th The block group that overlaps the block group and becomes the target block group can be found. If there is an intersection, the determination in S1106 is YES, and in S1107, the intersection is determined as the needle drop position, and the C3th stitch is divided into two. Furthermore, if there is no intersection, the answer in S1106 is NO, and the stitches are not divided.

[0026] In S1108, the count value C3 becomes 1.
By increasing the first block group G1 by
The stitches formed in the line are sequentially read out one by one, and the points of intersection with the inner contour line L1 are determined. 1st block group G1
In this case, for example, points P1, P2, P3 shown in FIG.
is determined and determined as the needle drop position in S1107. If the intersection points with the inner contour line L1 are calculated for all the stitches set for the first block group G1, and the needle drop position is set, the determination in S1109 becomes YES, and the count value C1 becomes 1 in S1110. In step S1111, it is determined whether or not all block groups have been processed, but this determination is NO.
Then, execution of the routine returns to S1102.

Since the overlapped flag is also set for the second block group G2, the determination result in S1102 is Y.
ES, and the seams formed in the second block group G2 and the third block group G overlapped with the second block group G2.
3 and the inner contour line L1 are found. In the case of the second block group G2, for example, the intersection point P4 shown in FIG.
is determined and taken as the needle drop position. Furthermore, since the overlapping flag is also set for the third block group G3, the determination in S1102 is YES, and the third block group G3 is
The intersection point between the stitch formed in 3 and the inner contour line L2 of the fourth block group G4 superimposed on the third block group G3 is calculated, and for example, the intersection point P5 shown in FIG. 12 is obtained, and the needle drop position is determined. It is said that For the fourth block group G4, since the overlapping flag is not set, the determination in S1102 becomes NO, the determination in S1111 becomes YES, and the execution of the routine ends.

If the needle drop position is set within the overlapping portion of the block groups that are partially overlapped with each other in this way, stitches will be created in the first to fourth block groups G1 to G4, respectively, as shown in FIG. is formed. Regarding the overlapped part, the sewing needle 24 is dropped not only on the outline line but also on the inside of the overlapped part to form a short stitch, so even if a stitch is formed on top of that stitch and is pulled, there will be no gap between the stitches. There are no gaps between the two, and embroidery can be embroidered with good appearance. Further, since the needle drop position within the overlapping portion is covered by the stitch formed thereon, it is not visible from the outside, and the appearance does not deteriorate.

[0029] In the above embodiment, the distance between the needle drop position set inside the overlapping part and the needle drop position defining both ends of the stitch divided by the needle drop position is not taken into account. However, if they are in the same position or the distance between them is 0.1mm or 0.2m
If the needle drop point is extremely short, such as m, a new needle drop point may not be set. In this case, the needle drop position itself set on the outer contour line is located near the inner outer contour line,
Even if a stitch is formed on top of the stitch specified by the needle drop position, the upper stitch overlaps the lower stitch near the needle drop position, and a new needle drop point is set inside the overlapped part. This is because even if it is not used, there will be fewer gaps caused by tension in the seams.

Further, in the above embodiment, the needle drop position within the overlapping portion of the block groups that are partially overlapped with each other is as follows:
It was set by finding the intersection between the inner outline set for the overlapped block and the seam found for the overlapped block, but it is not essential to find the inner outline, and the overlapped part All you have to do is find the outline and set it somewhere inside it.

Further, in the above embodiment, one needle drop position is set in the overlapping portion of the block group for each stitch, but an appropriate number of two or more may be set.

Further, in the above embodiment, the pattern 140 composed of square blocks was explained as an example, but the present invention can also be applied to the case where a pattern defined by curved blocks is embroidered. .

Furthermore, the present invention is not limited to the case where the blocks that define a pattern are obtained by dividing the outline of the pattern, but also to the case where the blocks defining the pattern are obtained by dividing the outline of the pattern. It can also be applied to setting the needle drop position in overlapped parts.

Further, in the above embodiment, the pattern was composed of a plurality of block groups each consisting of at least one block, but it is also possible to embroidery into a pattern consisting of a plurality of areas that are not divided into blocks and partially overlapped with each other. The present invention can also be applied when applying.

Furthermore, in the above embodiment, the mutually overlapping regions overlapped in such a way that the end of the lower region was located within the upper region, but this also applies when two regions intersect and overlap. The present invention can be applied.

Further, in the above embodiments, the case where the embroidery is performed by enlarging the pattern has been explained as an example, but the present invention can also be applied to the case where the embroidery is performed without enlarging the pattern.

In addition, the present invention can be implemented with various modifications and improvements based on the knowledge of those skilled in the art without departing from the scope of the claims.

[Brief explanation of drawings]

FIG. 1 is a flowchart showing a needle drop position data creation routine stored in a ROM of a computer that constitutes the main body of an embroidery data creation device of an embroidery device in which an embroidery method according to an embodiment of the present invention is implemented.

FIG. 2 is a perspective view showing an embroidery sewing machine constituting the embroidery device together with the embroidery data creation device.

FIG. 3 is a block diagram showing the configuration of the embroidery data creation device.

FIG. 4 is a conceptual diagram showing the configuration of the RAM of the computer.

FIG. 5 is a diagram showing an example of rectangular blocks formed by dividing a pattern for which embroidery data is created by the embroidery data creation device.

FIG. 6 is a diagram showing seams formed on the block shown in FIG. 5;

FIG. 7 is a diagram showing an example of triangular blocks formed by dividing a pattern for which embroidery data is created by the embroidery data creation device.

FIG. 8 is a diagram showing seams formed on the block shown in FIG. 7;

FIG. 9 is a diagram showing an example of a pattern for which embroidery data is created by the embroidery data creation device.

10 is a diagram showing inner outline lines set for a group of overlapping blocks among a plurality of block groups forming the pattern shown in FIG. 9; FIG.

11 is a diagram illustrating the intersections between the seams of the overlapped blocks and the inner outlines of the overlapped blocks among the block groups constituting the pattern shown in FIG. 9; FIG.

12 is a diagram showing the pattern shown in FIG. 9 in which stitches are formed; FIG.

FIG. 13 is a flowchart showing a block group overlap determination routine stored in the ROM of the computer.

FIG. 14 is a flowchart showing an inner outline setting routine stored in the ROM of the computer.

FIG. 15 is a flowchart showing an overlapped needle drop position setting routine stored in the ROM of the computer.

FIG. 16 is a diagram showing the contents of a block data area provided in the RAM.

[Explanation of symbols]

70 Control device 114 Outline data area 116 Block data area 120 Needle drop position data area 140 pattern

Claims (1)

[Claims] 1. A method for embroidering a pattern consisting of a plurality of regions that partially overlap each other, the method comprising forming stitches that alternately connect two opposing parts of outlines defining each of the plurality of regions. An embroidery method characterized in that a needle drop position is set for a plurality of areas, and a needle drop position is also set inside an overlapping part of an overlapping area where a part of a plurality of areas is overlapped with another area.