JP3593740B2 - Embroidery data creation device for sewing machine - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to an embroidery data creating device for a sewing machine, which creates embroidery data for filling an inside of a closed area with embroidery stitches.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, for example, in the field of industrial embroidery sewing machines, there has been provided an embroidery data creating apparatus capable of creating highly accurate embroidery data in a short time by using a microcomputer. This embroidery data creation device is configured by connecting an image scanner, a hard disk drive, and the like to a general-purpose personal computer system, for example, so that embroidery data can be easily created from an original image of an arbitrary embroidery pattern. Has become.
[0003]
By the way, in recent years, due to the diversification of customers' tastes, the luxury, the performance of embroidery sewing machines, etc., even in the case of home embroidery sewing machines, pattern embroidery formation based on embroidery data stored in advance is performed. In addition, there is a need for a relatively inexpensive and easy-to-operate embroidery data creation device that can form an embroidery pattern desired by a user. In order to meet such a demand, the present applicant has invented an embroidery data creating apparatus as previously filed in Japanese Patent Application No. 6-27734. This embroidery data creation device is configured by connecting a black-and-white binary image scanner to a compact body having a built-in microcomputer and a small display and several operation keys.
[0004]
It is also known that when forming a seam with an embroidery sewing machine, the finish of the seam usually differs depending on the direction in which the sewing progresses. For example, when performing satin stitching, when the work cloth is viewed from the front, the stitching direction is the stitch direction A as shown in FIG. It is known that, when going from right to left, the stitching direction is set to the stitching direction B as shown in FIG. 5 so that the stitching is stable and the appearance is beautiful. For example, when the seam is advanced from left to right, if a seam in the seam direction B is created, a force acting to release the warp of the thread is generated, and the finish of the seam is blurred compared to the normal seam in the seam direction A. (Unstable) feeling.
[0005]
[Problems to be solved by the invention]
However, based on the finish characteristics of the stitches as described above, embroidery data is created by determining the sewing order and the stitch direction so that the inside of the closed area is filled with beautiful stitches using a conventional embroidery data creation device. This operation requires skill, and it is difficult for ordinary household users who do not have knowledge of the characteristics of the seam to create embroidery data with a beautiful finish.
[0006]
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to provide an embroidery for a sewing machine capable of easily creating embroidery data for obtaining a beautiful seam finish even if the person does not have knowledge of the characteristics of the seam. A data creation device is provided.
[0007]
[Means for Solving the Problems]
In order to achieve this object, an embroidery data creating apparatus for a sewing machine according to claim 1 of the present invention is configured such that, as shown in FIG. 1, an area defining means for defining a sewing area and the area defining means. Sewing end point designating means for designating the sewing end point of the sewing in the sewing area, and a boundary line passing through the sewing end point designated by the sewing end point designating means, Sewing proceeds while sequentially filling the inside of the sewing area with stitches Boundary line setting means for setting a boundary line orthogonal to the sewing traveling direction, and, among the furthest ends of the sewing area with respect to the boundary line on both sides of the boundary line set by the boundary line setting means, from the boundary line Discriminating means for discriminating a sewing area having a farthest end having a large distance of When a sewing area having a farthest end having a large distance from the boundary line is determined, the sewing area is determined in accordance with the sewing progress direction of the sewing area and is inclined at an angle to a predetermined direction with respect to the boundary line. Determine the seam direction Then, the determined stitch direction is applied over the entire sewing area on both sides of the boundary line. There is provided a stitch direction determining means, and embroidery data creating means for creating embroidery data for the entire sewing area based on the stitch direction determined by the stitch direction determining means.
[0008]
The embroidery data creation device according to claim 2, further comprising: area defining means for defining a sewing area; sewing end point designating means for designating a sewing end point of sewing in the sewing area defined by the area defining means; A boundary line passing through the sewing end point designated by the end point designation means, Sewing proceeds while sequentially filling the inside of the sewing area with stitches Boundary line setting means for setting a boundary line orthogonal to the sewing traveling direction; determining means for determining a larger one of the sewing areas on both sides of the boundary line set by the boundary line setting means; When the means determines the larger of the area, It is determined in accordance with the sewing progress direction of the sewing area having a large area and is inclined at an angle in a predetermined direction with respect to the boundary line. Determine the seam direction Then, the determined stitch direction is applied over the entire sewing area on both sides of the boundary line. There is provided a stitch direction determining means, and embroidery data creating means for creating embroidery data for the entire sewing area based on the stitch direction determined by the stitch direction determining means.
[0009]
Further, the embroidery data creating device according to the third aspect is provided with embroidery data creating means for creating embroidery data having the same stitch direction and different sewing progress directions on both sides of the boundary line as a boundary.
[0010]
The embroidery data creation device according to a fourth aspect of the present invention includes embroidery data creation means for creating embroidery data in which the sewing start point and the sewing end point are substantially at the same position.
[0011]
An embroidery data creating device according to a fifth aspect of the present invention includes embroidery data creating means for creating embroidery data at the end of the sewing area near the boundary line at the start and end of sewing.
[0012]
[Action]
In the embroidery data creating apparatus for a sewing machine according to the first aspect of the present invention, the area defining means defines a sewing area. The sewing end point designating means designates a sewing end point of the sewing in the sewing area defined by the area defining means. The boundary setting means is a boundary passing through the sewing end point designated by the sewing end point designating means, Sewing proceeds while sequentially filling the inside of the sewing area with stitches Set a boundary line perpendicular to the sewing progress direction. The determining means determines a sewing area having a farthest end having a larger distance from the boundary line among the furthest ends of the sewing area with respect to the boundary line on both sides of the boundary line set by the boundary line setting means. The stitch direction determining means is a determining means. When a sewing area having a farthest end having a large distance from the boundary line is determined, the sewing area is determined in accordance with the sewing progress direction of the sewing area and is inclined at an angle to a predetermined direction with respect to the boundary line. Determine the seam direction And apply the determined stitch direction to the entire sewing area on both sides of the boundary line. I do. The embroidery data creating means creates embroidery data for the entire sewing area based on the stitch direction determined by the stitch direction determining means.
[0013]
Further, in the embroidery data creating device according to the second aspect, the area defining means defines a sewing area. The sewing end point designating means designates a sewing end point of the sewing in the sewing area defined by the area defining means. The boundary setting means is a boundary passing through the sewing end point designated by the sewing end point designating means, Sewing proceeds while sequentially filling the inside of the sewing area with stitches Set a boundary line perpendicular to the sewing progress direction. The determination means determines which one of the sewing areas on both sides of the boundary set by the boundary setting means has a larger area. The stitch direction determining means determines, when the determining means determines the larger one of the areas, It is determined in accordance with the sewing progress direction of the sewing area having a large area and is inclined at an angle in a predetermined direction with respect to the boundary line. Determine the seam direction And apply the determined stitch direction to the entire sewing area on both sides of the boundary line. I do. The embroidery data creating means creates embroidery data for the entire sewing area based on the stitch direction determined by the stitch direction determining means.
[0014]
Furthermore, in the embroidery data creating device according to the third aspect, the embroidery data creating means creates embroidery data having the same stitch direction and different sewing progress directions on both sides of the boundary line.
[0015]
In the embroidery data creating device, the embroidery data creating means creates the embroidery data in which the sewing start point and the sewing end point are substantially at the same position.
[0016]
In the embroidery data creating apparatus according to the fifth aspect, the embroidery data creating means creates the embroidery data at the end of the sewing area near the boundary line and at the end of the sewing.
[0017]
【Example】
Hereinafter, a first embodiment in which the present invention is applied to an embroidery data creating apparatus for a household embroidery sewing machine will be described with reference to FIGS.
[0018]
First, although not shown, the home embroidery sewing machine will be briefly described. The embroidery sewing machine moves an embroidery frame, which is placed on a sewing machine bed and holds a work cloth, to a predetermined position indicated by an x, y coordinate system unique to the apparatus by a horizontal movement mechanism, and performs a sewing operation by a sewing needle and a shuttle mechanism. By doing so, a predetermined pattern is embroidered on the work cloth. In this embroidery sewing machine, as shown in FIG. 4, when the sewing progress direction is from left to right, the seam inclined at 45 degrees clockwise with respect to the boundary line EL (see FIG. 7) has a beautiful appearance. As shown in FIG. 5, when the sewing progress direction is from right to left, a stitch that is inclined 45 degrees counterclockwise with respect to the boundary line EL is a beautiful stitch.
[0019]
In this case, the horizontal movement mechanism, the needle bar, and the like are controlled by a control device composed of a microcomputer or the like. Therefore, the movement amount of the work cloth for each stitch in the x and y directions (needle drop) By giving the embroidery data used to instruct the position, the control device can automatically execute the embroidery operation. In the present embodiment, the embroidery sewing machine is provided with a flash memory device, and is configured so that embroidery data is externally provided by a flash memory (card memory) described later. An embroidery data creation device described later has a function of creating such embroidery data. The embroidery sewing machine is provided with a display unit for displaying various messages, so that a user is instructed to change the color of the embroidery thread.
[0020]
Next, the overall configuration of the embroidery data creation device according to the present embodiment will be described with reference to FIGS. FIG. 2 shows the appearance of the embroidery data creation device, and FIG. 3 shows the electrical configuration. Here, the creation device main body 1 is mainly composed of a microcomputer, and has a CPU 2, a ROM 3, a RAM 4, and a flash memory device (FMD). 5, an input / output interface 6 (I / O) is connected to each other via a bus.
[0021]
A liquid crystal display (LCD) 7 as a display device for displaying a design or the like of an original image on a screen 7a is provided on an upper surface portion of the creation apparatus main body 1. The liquid crystal display 7 is controlled by a display control device (LCDC) 8, and a display storage device (VRAM) 9 is connected to the display control device 8. A flash card memory 10 as a storage medium is detachably set in the flash memory device 5. Further, the creation apparatus main body 1 is provided with operation keys 11 for the user to give instructions such as selection and execution of processing, and is connected to the CPU 2 via the input / output interface 6.
[0022]
A binary image scanner 12 for reading design image data of the original image is connected to the creation apparatus main body 1 via the input / output interface 6. In this case, the image scanner 12 is composed of a hand scanner that reads a monochrome monochrome image. The operator holds the upper part of the image by hand, places the lower reading part on the original image, and traces the image along the original image while pressing the button. By moving in one direction, the design drawn on the original picture is read as raster-type digital design image data. The read design image data has a white or black density value (0 or 1) for each pixel, and is stored in the RAM 4.
[0023]
Next, the operation of the embroidery data creating apparatus for a sewing machine according to the present invention thus configured will be described with reference to FIG. In the home embroidery sewing machine, the embroidery pattern of this embodiment is embroidered only in the direction shown in FIG. Therefore, the sewing progress direction in the embroidery data creation device of this embodiment is also only one of the directions shown in FIGS. 4 and 5, that is, only the X coordinate direction.
[0024]
When the power of the creation apparatus main body 1 is turned on and the program for creating embroidery data stored in the ROM 3 is started, the processing shown in the flowchart of FIG. 9 is executed. First, in step S1, the user uses the image scanner 12 to read an original image representing "aubergine" shown in FIG. 6 (see Japanese Patent Application No. 6-27734). The image data of the original image read here is stored in the RAM 4. Next, in step S2, a process of extracting coordinate points representing the contour of the closed region is performed. That is, the points P0 to P27 shown in FIG. 7 are extracted as the coordinate point data defining the shape of the closed area in which the inside is filled with the stitches.
[0025]
Then, in step S3, a process of determining the sewing start and end points is performed. In this embodiment, the sewing start point and the sewing end point are the same point. By setting both points to the same point or a point in the vicinity, it is possible to cut the transition thread at the start and end of sewing at the same time after the end of embroidery. In this step S3, of the coordinate point data extracted in step S2, a point P15 which is the lowest point in the Y coordinate direction orthogonal to the X coordinate direction as the sewing progress direction is designated as a sewing start point and a sewing end point. This designation is performed based on the embroidery data creation program stored in the ROM 3. Note that a straight line EL that passes through the point P15 designated as the sewing end point and is orthogonal to the X coordinate direction which is the sewing progress direction is set as the boundary line.
[0026]
Next, in step S4, a process of extracting the leftmost point and the rightmost point, which are the farthest ends of the X coordinate as the sewing progress direction, from the coordinate point data is performed. Here, as shown in FIG. 7, a point P11 is extracted as the leftmost point, and a point P24 is extracted as the rightmost point. Then, in step S5, a difference LX between the X coordinate value of the sewing end point P15 and the X coordinate value of the leftmost point P11 is calculated. This difference LX is the distance to the farthest end in the left part of the boundary line EL. Further, in step S6, a difference RX between the X coordinate value of the sewing end point P15 and the X coordinate value of the rightmost point P24 is calculated. This difference RX is the distance to the farthest end on the right side of the boundary line EL.
[0027]
Next, in step S7, LX and RX are compared, and when the value of LX is larger than the value of RX, YES is determined in step S7 and the process proceeds to step S8. In step S8, the direction of the stitch filling the inside of the closed area is determined to be the stitch direction A shown in FIG. On the other hand, if the value of LX is not larger than the value of RX, NO is determined in the step S7, and the process proceeds to a step S9. In step S9, the direction of the stitch filling the inside of the closed area is determined to be the stitch direction B shown in FIG. In this embodiment, since the value of LX is smaller than the value of RX as shown in FIG. 7, it is determined NO in step S7, the process proceeds to step S9, and the direction of the stitch filling the inside of the closed region is as shown in FIG. The stitch direction B is determined.
[0028]
As described above, the stitch direction inside the closed area is determined to be the stitch direction suitable for the sewing direction in which the long sewing is performed by the processing of step S4 to step S9, so that the finish inside the closed area becomes beautiful. Becomes longer. Therefore, the finish of the seam of the entire closed region becomes beautiful. Note that the boundary line EL, the broken line LL passing through the leftmost point P11, and the broken line RL passing through the rightmost point P24 in FIG. 7 are all straight lines parallel to the Y coordinate direction.
[0029]
After the determination of the stitch direction, embroidery data is created in step S10. In this step S10, as shown in FIG. 8, first, a straight line NL which passes through the sewing end point P15 and is inclined 45 degrees counterclockwise in the same direction as the determined stitch direction B is obtained. Second, the embroidery data of the right partial area of the straight line NL is created. First, the farthest point in the right partial area of the straight line NL is determined. In the present embodiment, the point is point P27. Embroidery data is created so that running stitching inside the embroidery area is performed from the sewing start point P15 specified in step S3 toward this point P27. Then, the embroidery data in the right partial area from the point P27 to the straight line NL passing through the sewing end point P15 is created so as to be completely filled with the stitches in the stitch direction determined in steps S7 to S9. In the present embodiment, the stitches are inclined at 45 degrees counterclockwise with respect to the seam direction B shown in FIG. 5, that is, the boundary line EL. Since the sewing progress direction in this area is from right to left, the embroidery in this area will be beautifully finished. The embroidery data of the right partial area of the straight line NL is created so as to end at the sewing end point P15.
[0030]
Third, the embroidery data of the left partial area of the straight line NL is created. First, a point farthest from the left partial area of the straight line NL is determined. In this embodiment, the point is P14. To this point P14, embroidery data is created so that running stitching inside the embroidery area is performed from the sewing end point P15 in the right partial area. Next, the embroidery data of the left partial region from the point P14 to the straight line NL is created so as to be completely filled with the stitches in the stitch direction determined in steps S7 to S9, which are the stitches in the same direction as the right partial region. You. In order to match the stitch direction of the entire embroidery, the stitch direction is matched between the right partial area and the left partial area. In the present embodiment, the stitch direction B is illustrated in FIG. The embroidery data of the left partial area of the straight line NL is created so as to end at the sewing end point P15 specified in step S3.
[0031]
Since the sewing progress direction of the left partial area is from left to right, if this area is embroidered in the seam direction B, the embroidery will not be finished beautifully. However, since the sewing distance of the left partial area is shorter than the sewing distance of the right partial area, even if the embroidery data is created so that the left partial area is embroidered in the stitch direction B, the embroidery that is beautifully finished as a whole closed area is obtained. Data can be created.
[0032]
In step S11, the created embroidery data is stored in the flash memory card 10, and the embroidery data creation program ends.
[0033]
By setting the flash memory card 10 storing the embroidery data created as described above on the embroidery sewing machine, embroidery can be formed on the work cloth. Then, since the stitch direction for filling the entire closed area so that many beautiful stitches are generated is determined in the processing of steps S4 to S9, even if the user has no knowledge of the stitch characteristics, beautifully finished embroidery data is obtained. Can be easily created.
[0034]
In particular, in the case where partial areas whose sewing progress directions are opposite to each other are embroidered as in the present embodiment, in the related art, the stitch direction is determined so as to be embroidered in a stitch direction suitable for the sewing progress direction. Therefore, the stitches having different stitch directions are adjacent to each other at the boundary of the partial region, so that the boundary has a sense of incongruity or exposure of the cloth. However, in the present embodiment, since the stitch direction is commonly determined for the entire embroidery area, such uncomfortable feeling and cloth exposure can be eliminated.
[0035]
Also, even when embroidery data is created so that a thread crosses between sewing areas, such as when embroidering a plurality of areas with one color thread, the start and end of sewing are almost the same. To Since the embroidery data is generated so as to be as described above, it is easy to cut the jump thread at the start of sewing from another sewing area and the jump thread at the end of sewing derived from this sewing area at a time. Furthermore, since the end point of the sewing is specified at the lowermost point of the sewing area, that is, one of the end points of the sewing area, the end of the embroidery can be finished at the end of the embroidery, and the finish of the embroidery can be more beautifully performed. can do.
[0036]
The determination of the stitch direction in the above-described embodiment is performed in steps S4 to S9 in such a manner that the distance to the farthest end on both sides of the boundary from the boundary passing through the sewing end point and orthogonal to the sewing progress direction is determined. The stitch direction suitable for the sewing progress direction of the area was determined. However, the stitch direction may be determined to be a stitch direction suitable for the sewing progress direction of the larger area on both sides of the boundary line. This is because if the stitch direction is determined so that the larger area of the embroidery area is beautifully created, the entire embroidery can be beautifully finished.
[0037]
Next, a second embodiment will be described with reference to FIGS. The second embodiment differs from the first embodiment in that the stitch direction is determined by the size of the area on both sides of the boundary. The same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted. Only different parts will be described. Therefore, since the configuration of the embroidery data creation device is the same, the description of the configuration will be omitted, and only the operation will be described.
[0038]
When the power of the main body 1 is turned on and the embroidery data creation program stored in the ROM 3 is started, the processing shown in the flowchart of FIG. 12 is executed. First, in step S21, using the image scanner 12, a user reads an original image (not shown) representing a regular octagon with n sides. The read image data of the original image is stored in the RAM 4. Next, in step S22, a process of extracting coordinate points representing the contour of the closed region is performed. That is, points P30 to P37 shown in FIG. 10 are extracted as coordinate point data that defines the shape of a closed region in which the inside is filled with stitches.
[0039]
Then, in step S23, a process of designating a sewing start point and a sewing end point is performed. In this embodiment, the sewing start point and the sewing end point are the same as in the first embodiment. In step S23, the point P34 among the coordinate point data extracted in step S22 is designated as a sewing start point and a sewing end point. This designation is performed based on the embroidery data creation program stored in the ROM 3. Then, in step S24, a straight line EL which passes through the point P34 previously designated as the sewing end point and is orthogonal to the X coordinate direction which is the sewing progress direction is set as the boundary line.
[0040]
Next, in step S25, of the closed area surrounded by points P30 to P37 shown in FIG. 10, the area SR of the right partial closed area divided by the boundary line EL and the area SL of the left partial closed area are obtained. Processing is performed. Here, since the closed region shown in FIG. 10 is a regular octagon with one side being n, the area SR is (√2 + 1) × n ^Two ÷ 2, and the area SL is 3 × (√2 + 1) × n ^Two $ 2 is required.
[0041]
Next, in step S26, the area SL and the area SR are compared, and if the value of the area SL is larger than the value of the area SR, YES is determined in step S26 and the process proceeds to step S27. In step S27, the direction of the stitch filling the inside of the closed area is determined to be the stitch direction A shown in FIG. On the other hand, if the value of the area SL is not larger than the value of the area SR, NO is determined in the step S26, and the process proceeds to the step S28. In step S28, the direction of the stitch filling the inside of the closed area is determined to be the stitch direction B shown in FIG. In the present embodiment, since the value of the area SL is larger than the value of the area SR as shown in FIG. 10, YES is determined in the step S26, the process proceeds to the step S27, and the stitch direction for filling the inside of the closed area is , The stitch direction A shown in FIG.
[0042]
As described above, the stitch direction inside the closed region is determined to be a stitch direction suitable for the sewing direction in which the stitch is to be widely performed by the processing of steps S24 to S28, so that the finish inside the closed region becomes beautiful. Area becomes large. Therefore, the finish of the seam of the entire closed region becomes beautiful. Note that the boundary line EL in FIG. 10 is a straight line parallel to the Y coordinate direction.
[0043]
After the determination of the stitch direction, embroidery data is created in step S29. Here, as shown in FIG. 11, first, a straight line NL that passes through the sewing end point P34 and is inclined by 45 degrees clockwise in the same direction as the determined stitch direction A is obtained.
[0044]
Second, the embroidery data of the right partial area of the straight line NL is created. However, in this embodiment, the straight line NL is located at the right end of the sewing area, and there is no right partial area of the straight line NL, so that it is not necessary to create embroidery data for this part.
[0045]
Third, the embroidery data of the left partial area of the straight line NL is created. First, a point farthest from the left partial area of the straight line NL is determined. In the present embodiment, it is point P31. To this point P31, embroidery data is created so that running stitching inside the embroidery area is performed from the sewing end point P34. Next, the embroidery data in the left partial area from the point 31 to the straight line NL is created so as to be completely filled with the stitches in the stitch direction determined in steps S26 to S28. In the present embodiment, the stitch direction A is illustrated in the figure. The embroidery data of the left partial area of the straight line NL is created so as to end at the sewing end point P34 specified in step S23.
[0046]
Since the sewing progress direction of this left partial area is from left to right, embroidery in this area will be beautifully finished.
[0047]
The embroidery data thus created is stored in the flash memory card 10 in step S30, and the embroidery data creation program ends.
[0048]
According to the second embodiment, the stitch direction is determined to be the stitch direction suitable for the stitching direction of the region having the larger area on both sides of the boundary, so that the beautifully finished embroidery area can be increased. It is possible to finish the entire embroidery beautifully.
[0049]
The present invention is not limited to the embodiments described above, and can be implemented with appropriate modifications without departing from the spirit of the invention. For example, in the present embodiment, the designation of the sewing start point and the sewing end point in steps S3 and S23 is performed based on the program stored in the ROM 3, but the user designates one point at a time from the coordinate point data. May be configured. Although the created embroidery data is stored in the flash memory card 10, the embroidery data may be developed into stitch data for each stitch and then stored in the flash memory card 10. Further, reading of the image data may be performed not only from the image scanner 12 but also from an image input device such as a camera or a pointing device such as a digitizer or a mouse.
[0050]
【The invention's effect】
As is apparent from the above detailed description, in the embroidery data generating apparatus for a sewing machine according to the first aspect of the present invention, the sewing area having the farthest end from the boundary passing through the sewing end point is determined. In the sewing progress direction of the determined sewing area. Correspondingly defined and inclined at an angle to a predetermined direction with respect to the boundary line Determine the direction of the seam and Applying the determined stitch direction over the entire sewing area on both sides of the boundary line, The embroidery data for the entire sewing area is created based on the stitch direction. It has an excellent practical effect that it can be formed in a wide range.
[0051]
In the embroidery data creating apparatus for a sewing machine according to the second aspect, a sewing area having a larger area is determined by using a boundary line as a boundary, and the determined sewing area is moved in a sewing progress direction of the sewing area having a larger area. Correspondingly defined and inclined at an angle to a predetermined direction with respect to the boundary line Determine the direction of the seam and Applying the determined stitch direction over the entire sewing area on both sides of the boundary line, The embroidery data for the entire sewing area is created based on the stitch direction. It has an excellent practical effect that it can be formed in a wide range.
[0052]
Furthermore, in the embroidery data creating device according to the third aspect, embroidery data having the same stitch direction and different stitching progress directions is created on both sides of the border line as a boundary, and the embroidery data is formed at the boundary between stitches having different stitching progress directions. Since the stitch direction is the same, discomfort at the boundary and exposure of the fabric are prevented.
[0053]
In the embroidery data creating device according to the fourth aspect, the sewing start point and the sewing end point are substantially at the same position, and the thread reaching the sewing area and the thread derived from the sewing area approach each other. The yarn can be easily cut at one time.
[0054]
In the embroidery data creating device according to the fifth aspect, the sewing end point is at the end point of the sewing area, so that the finish is good.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of an embroidery data creating device for a sewing machine according to the present invention.
FIG. 2 is a perspective view showing an appearance of an embroidery data creating apparatus for a sewing machine according to the present invention.
FIG. 3 is a block diagram showing an electrical configuration of an embroidery data creating device for a sewing machine according to the present invention.
FIG. 4 is a diagram for explaining the characteristics of a seam;
FIG. 5 is a diagram for explaining characteristics of a seam;
FIG. 6 is a view showing an original image representing an embroidery shape according to the first embodiment of the present invention.
FIG. 7 is a diagram showing coordinate point data defining the shape of a closed region according to the first embodiment of the present invention.
FIG. 8 is a diagram showing a seam in a closed region according to the first embodiment of the present invention.
FIG. 9 is a flowchart showing a procedure for creating embroidery data according to the first embodiment of the present invention.
FIG. 10 is a diagram showing coordinate point data defining the shape of a closed region according to the second embodiment of the present invention.
FIG. 11 is a diagram illustrating a seam in a closed region according to the second embodiment of the present invention.
FIG. 12 is a flowchart showing a procedure for creating embroidery data according to the second embodiment of the present invention.
[Explanation of symbols]
1. Creating device body
2 CPU
3 ROM
4 RAM
5 Flash memory device
7 Liquid crystal display
10 Flash card memory
11 Operation keys
12 Image scanner

Claims (5)

In an embroidery data creation device that creates data necessary for the operation of an embroidery sewing machine,
Area defining means for defining a sewing area;
Sewing end point designating means for designating a sewing end point of sewing in a sewing area defined by the area defining means;
Boundary line setting means for setting a boundary line passing through the sewing end point designated by the sewing end point designating means, the boundary line being orthogonal to a sewing progress direction in which sewing is performed while sequentially filling the inside of the sewing area with stitches ;
Discriminating means for discriminating a sewing area having a farthest end having a greater distance from the boundary line among the furthest ends of the sewing area with respect to the boundary line on both sides of the boundary line set by the boundary line setting means; ,
When the determining means determines a sewing area having a farthest end having a large distance from the boundary line, the sewing area is determined in accordance with a sewing progress direction of the sewing area and is inclined at a predetermined angle with respect to the boundary line. and stitching direction determining means for determining a stitching direction, applying over the determined stitch direction across the sewing region on both sides of the boundary line that,
An embroidery data creating device for creating embroidery data for the entire sewing area based on the stitch direction determined by the stitch direction determining device. In an embroidery data creation device that creates data necessary for the operation of an embroidery sewing machine,
Area defining means for defining a sewing area;
Sewing end point designating means for designating a sewing end point of sewing in a sewing area defined by the area defining means;
Boundary line setting means for setting a boundary line passing through the sewing end point designated by the sewing end point designating means, the boundary line being orthogonal to a sewing progress direction in which sewing is performed while sequentially filling the inside of the sewing area with stitches ;
Discriminating means for discriminating which one of the sewing areas on both sides of the boundary line set by the boundary line setting means has a larger area;
When the discriminating means discriminates the one having the larger area, the stitch direction determined in accordance with the sewing progress direction of the sewing area having the larger area and inclined at a predetermined angle with respect to the boundary line is determined , Seam direction determining means for applying the determined seam direction over the entire sewing area on both sides of the boundary line ;
An embroidery data creating device for creating embroidery data for the entire sewing area based on the stitch direction determined by the stitch direction determining device. 3. The embroidery data for a sewing machine according to claim 1, wherein said embroidery data creating means creates embroidery data having the same stitch direction and different sewing progress directions on both sides of the boundary line as a boundary. Creation device. 3. The embroidery data generating apparatus for a sewing machine according to claim 1, wherein the sewing start point generated by the embroidery data generating unit is substantially at the same position as the sewing end point specified by the sewing end point specifying unit. . 5. The embroidery data generating device for a sewing machine according to claim 4, wherein said embroidery data generating means generates embroidery data at the start and end of sewing at an end point of a sewing area near the boundary line.

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