JPH0671504B2 - Sewing machine that can sew letters and patterns - Google Patents

Description

TECHNICAL FIELD The present invention relates to a sewing machine capable of sewing characters and patterns.

(Problems to be Solved by Prior Art and Invention) Conventionally, in a sewing machine for embroidering characters such as alphabets and kanji, a code composed of four-digit numbers and alphabets is operated to correspond to each character. When input from the section, sewing data corresponding to the code is read from the storage device, and embroidery sewing is performed based on the sewing data.

However, in this conventional sewing machine, it is necessary to search and enter the code corresponding to each character from the code list, which is very troublesome.

(Object of the Invention) The present invention has been made to solve the above problems, and an object thereof is to easily search for a sewing element such as a character or a pattern to be sewn in a short time, An object of the present invention is to provide a sewing machine capable of sewing characters, patterns, etc., which enables easy and reliable setting of enlargement / reduction of sewing elements such as characters or patterns and sewing positions.

(Means and Actions for Solving Problems) In order to achieve the above object, the present invention includes a needle that is moved up and down across a work cloth supporting surface, and a work cloth on the work cloth supporting surface is provided with a needle. A stitch forming device that forms a stitch, a feeding device that feeds the work cloth on the work cloth supporting surface, a sewing element arrangement portion in which sewing elements such as various characters and patterns are arranged and displayed, and the sewing thereof. An input device having a designating member for designating one sewing element on the element array portion, and for selecting one of a box-shaped sewing area and a circle-shaped sewing area provided in the input device. Area selection key and either the box-shaped sewing area or the circle-shaped sewing area selected by the area selection key is displayed, and the area is designated by the designating member. Displayed sewing elements,
Further, a display device for simultaneously displaying the enlargement / reduction data, coordinate data, etc. of the displayed sewing element and the enlargement / reduction data, coordinate data, etc. of the sewing element displayed on the display device, which are provided in the input device, are displayed. A change key for changing and a storage means for storing sewing data corresponding to each of the sewing elements,
And a control means for controlling the operations of the stitch forming device and the feeding device based on the sewing data corresponding to the sewing element designated by the input device.

Therefore, when the sewing element on the sewing element array portion is designated by the designating member and one of the box-shaped sewing area or the circle-shaped sewing area is selected by the area selection key, the selected box-shaped sewing area is displayed on the display device. The sewing area or the circular sewing area and the sewing element designated by the designating member are displayed in the area, and the enlargement / reduction data of the displayed sewing element, the coordinate data, etc. are simultaneously displayed. Based on this display data, the operator can change the sewing element to a desired size and position with the change key while looking at the display content. Then, the control means reads the sewing data corresponding to the determined sewing element from the storage means, and controls the operations of the stitch forming device and the feeding device based on the sewing data.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 2, the arm portion 3 of the sewing machine is placed on the work cloth supporting surface 2 of the sewing machine table 1, and the sewing machine main shaft (not shown) is rotationally driven on the right side of the arm portion 3. The sewing machine motor 4 is mounted. On the left side of the arm portion 3, a needle 5 is attached at the lower end, and a needle bar 6 which is moved up and down in accordance with the rotation of the sewing machine main shaft is mounted. In order to face the needle 5, the sewing machine table 1 has a built-in thread catcher (not shown) that cooperates with the needle 5 to form a stitch on the work cloth W on the work cloth support surface 2. The thread catcher and the needle 5 form a stitch forming device.

Below the needles 5, a feeding device 8 having a ring-shaped holding frame 7 for holding the work cloth W is arranged on the work cloth support surface 2. The feeding device 8 is moved in the front-rear direction (Y direction) and the left-right direction (X direction) by a pair of pulse motors (not shown) that are rotationally driven in synchronization with the vertical movement of the needle 5, and along with the movement. The work cloth W is fed.

On the upper surface of the right side of the sewing machine table 1, a tablet board 9 and an input pen 10 as a designation member are arranged, and a display device 11 composed of a CRT display is arranged. A sewing element array portion is provided on the tablet board 9.
12 are provided, and sewing elements 13 such as various characters and patterns are arranged and displayed in the array portion 12 in a state of being divided into each element. By designating one sewing element 13 with the input pen 10, the sewing element 13 is displayed on the display device 11. The tablet board 9 and the input pen 10 form an input device I.

A sewing position input area 14 including a pair of coordinate axes X and Y orthogonal to each other and a circle C centering on an intersection of the coordinate axes X and Y is provided on the right side of the sewing element array portion 12. By designating the sewing position with the input pen 10 in the input area 14, the coordinate data is input and displayed on the display device 11.

Further, various function keys 15 and numeral keys 16 of "1" to "9" are arranged on the rear side of the sewing element array portion 12. The function key 15 and the numeric key 16 constitute the area selection key and the change key of the present invention, respectively.

Next, the electrical configuration of this embodiment will be described. First
Reference numeral 20 shown in the figure is a central processing unit (CPU) that constitutes the control means.
Therefore, the CPU 20 has a random access memory (RA
M) 21 and read only memory (ROM) 22 are connected. The ROM 22 stores a data editing program for combining various sewing elements to create sewing element data, a data registration program for storing the data in the floppy disk 28, and sewing based on the stored data. Various control programs such as a sewing program for performing are stored. Then, the input pen 10
The various types of programs described above are selected by designating the numeric keys 16 with, and the CPU 20 sets the mode according to the program.

The CPU 20 outputs a drive signal to the sewing machine motor 4 via the input / output interface 23 and the sewing machine motor drive circuit 24. Therefore, the sewing machine motor 4 rotationally drives the sewing machine main shaft to operate the stitch forming device.

Further, in the vicinity of the sewing machine motor 4, the arm portion 3 of the sewing machine is attached to a detection device 25 for detecting the needle upper position corresponding to the top dead center of the needle 5 and the needle lower position corresponding to the lower dead center. The detection signal output from the detection device 25 is transmitted to the CPU 20 via the input / output interface 23.
Entered in.

Based on the detection signal from the detection device 25, the CPU 20 outputs a drive signal to a pair of pulse motors (not shown) of the feeding device 8 via the input / output interface 23 and the drive circuit 26. As a result, the feeding device 8 is operated in a state where the needle 5 is pulled out upward from the work cloth W.

On the other hand, a floppy disk drive device 27 is connected to the CPU 20 via an input / output interface 23, and a floppy disk 28 is detachably attached to the floppy disk drive device 27. The floppy disk 28 stores sewing data corresponding to code data of various sewing elements including various kanji, hiragana, katakana, alphabet letters, numbers and patterns.

When one sewing element 13 is designated by the input pen 10 in the state where the data editing mode is set, and the code data corresponding to the sewing element 13 is thereby input, the CPU 20 causes the code The sewing data corresponding to the data is read from the floppy disk 28, and the RAM21
Temporarily store in.

Next, the operation of the sewing machine configured as described above will be described. First, when the sewing machine is powered on in step S1 shown in FIG. 4 (a), the CPU 20 causes the display device 11 to display a menu for program selection shown in FIG. 5 (a).
Here, enter the number keys 16 on the tablet board 9 with the input pen
When the program for data editing is selected by designating by 10, the CPU 20 sets the data editing mode.

Then, the CPU 20 displays the framework F for creating the data list shown in FIG. 5 (b). Next, in step S4 shown in FIG. 4, the sewing element array portion 12 of the doublet board 9
When the upper sewing element 13 is designated by the input pen 10, the determination result is YES. Subsequently, in step S5, the enter key 15a of the function keys 15 is designated by the input pen 10, and the determination result is YES. Thereby, the CPU 20 sets the designated sewing element 13 to the fifth position.
As shown in FIG. 3B, the data is displayed in the frame F, and the sewing data corresponding to the sewing element 13 is read from the floppy disk 28 and stored in the RAM 21.

The above-mentioned steps S4 to S6 are the same as the end key of the function keys 15 in the next step S7.
This is repeated until 15b is designated, the combination data of the sewing element 13 is created based on the repeated movement, and the sewing element 13 is displayed in the frame F in the designated order.

Next, proceeding to step S8 shown in FIG. 4 (c), the CPU 20 makes a determination for designating the shape of the input area of the sewing element. That is, it is determined whether or not the box key 15c or the circle key 15d of the function keys 15 is operated, and the box input area setting mode is set when the box key 15c is operated. Then, in the next step S9, when two points separated from each other on the sewing position input area 14 are designated and input by the input pen 10, the process proceeds to step S10 and the CPU 20 determines the two points based on the coordinates of the two points. An area surrounded by four straight lines extending in parallel with each of the coordinate axes X and Y is set as a box-shaped sewing area Ab, and the box-shaped sewing area Ab is indicated by the dotted line in FIG. 5 (c). It is displayed on the display device 11 together with the first data (“love” in this embodiment) of the sewing elements designated and input as described above.

On the other hand, when the circle key 15d of the function keys 15 is designated and input by the input pen 10 in step S8, the circle input area setting mode is set. Therefore, in the next step S11, when two points separated from each other are designated and input on the sewing position input area 14 by the input pen 10, the process proceeds to step S12, and the CPU 20 determines one point based on the coordinates of the two points. A circular sewing area Ac which is the center and passes through the other point is set, and the circular sewing area Ac is designated and input as described above by the two-dot chain line in FIG. 5 (c). It is displayed on the display device 11 together with the first data in the above.

Succeedingly, in a step S13, when the enlargement ratio or the reduction ratio is inputted by designating the numeral keys 16 by the input pen 10, the determination result becomes YES, and FIG. 5 (c).
The enlargement / reduction ratio is displayed in the frame F of the display device 10 as shown in FIG. Next, in step S14, the inclination angle of the sewing element with respect to the coordinate axes X and Y is designated by the numeric keys 16 and the input pen 10, and the determination result is YE.
S, and the inclination angle is displayed in the frame F of the display device 10 together with the enlargement / reduction ratio.

Then, in step S15, the sewing position is designated and input on the sewing position input area 14 by the input pen 10, the determination result is YES, and as shown in FIG. 5 (c), the sewing of the sewing element 13 is completed. The position is displayed on the display device 11 by the cross-shaped cursor K, and the sewing position X,
The Y coordinate is displayed in the frame F.

The sewing position of the sewing element 13 can also be input by designating the numeric keys 16 with the input pen 10.

Further, each data of the enlargement / reduction ratio, angle and coordinates is stored in the RAM 21 in combination with the sewing data.

Next, in step S15, when the forward key 15e of the function keys 15 is designated by the input pen 10, each data such as the enlargement / reduction ratio corresponding to the second sewing data in FIG. To enter
The display is switched in step S16. Therefore, by repeating the processing of steps S13 to S15, data such as the enlargement / reduction ratio corresponding to the second sewing data is input.

Then, when the input of each data such as the enlargement / reduction ratio corresponding to all the sewing data is completed, the end key 15b of the function keys 15 is designated by the input pen 10 in step S15, as shown in FIG. Steps in a)
Returning to S2, the menu shown in FIG. 5 (a) is displayed.

When the numeric key on the tablet board 9 is designated by the input pen 10 to select the program for data registration in this menu display state, the CPU 20 sets the data registration mode. In this state, the CPU 20 determines the floppy disk 28 for data registration in step S20 shown in FIG. 4 (d).
Discriminate whether or not the floppy disc drive device 27 is mounted, and if the result is YES, discriminates whether or not the registered file name is inputted in step S21. Therefore, in this step S21, the sewing element 13 on the sewing element array portion 12 or the numeric key 16 on the tablet board 9 is designated to input a file name consisting of a plurality of words, and the determination result is YES.

Next, when the enter key 15a is designated and input in step S22, the input of the file name ends. Next, after the passkey 15f is designated and input in step S23, the record key
When 15g is designated and input, it is determined in step S25 whether or not the file names are duplicated.

If they do not overlap, the process proceeds to step S26, and the CPU 20 writes the file name data to the floppy disk 28, and displays "registration completed" on the display device 11 in the next step S27. When the enter key 15a is specified in step S28, the file name corresponding to the above-mentioned sewing element combination data is set and stored. After inputting this file name, the menu is displayed again by returning to step S2.

On the other hand, if the file names are duplicated in step S25, the process proceeds to step S29, and a message such as "Already used file name" is displayed. Here, if the enter key 15a is designated and input, another file name can be input by returning to step S21 and repeating the processing from step S21 to step S24.

Now, when performing sewing according to the combination data of the sewing elements 13 edited as described above, the numbers on the tablet board 9 are displayed with the menu displayed in step S2 shown in FIG. 4 (a). When you select the program for data sewing by specifying the key with the input pen 10, the CPU20
Sets the data sewing mode. Therefore, when an arbitrary file name is designated and input, the combination data of the sewing element 13 corresponding to the file name is read from the floppy disk 28 and stored in the RAM 21.

Next, if a start key (not shown) of the function keys 15 is designated by the input pen 10, the CPU 20 drives and controls the sewing machine motor 4 and the feeding device 8 based on the combination data. Therefore, the sewing element 13 in the combination data is sewn to the work cloth W in the ring-shaped holding frame 7.

As described above, in this embodiment, the sewing element 13 can be searched and selected in a short time by a simple operation of only designating the sewing element 13 on the tablet board 9 with the input pen 10.

(Effects of the Invention) As described in detail above, according to the present invention, it is possible to easily search for a sewing element such as a character or a pattern to be sewn in a short time and to enlarge the sewing element such as a character or a pattern.
The excellent effect that the reduction, the sewing position and the like can be set easily and surely is achieved.

[Brief description of drawings]

FIG. 1 is a block diagram showing the electrical construction of a sewing machine in an embodiment embodying the present invention, FIG. 2 is a perspective view of the sewing machine, FIG. 3 is a plan view of a tablet board, and FIG. 4 (a).
5A to 5C are explanatory views showing various display states. In the figure, 2 is a work cloth supporting surface, 5 is a needle, 8 is a feeding device, 9 is a tablet board, 10 is an input pen (the input device I is constituted by the above 9 and 10), and 12 is a sewing element array portion. , 13 is a sewing element, 20 is a CPU as control means, 28 is a floppy disk as storage means, and W is a work cloth.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Miho Hashimoto 9-35 Hotta-dori, Mizuho-ku, Nagoya, Aichi Prefecture, Brother Industries, Ltd. (56) References JP 60-119981 (JP, A) JP Sho 56-105527 (JP, A) JP-A-57-94831 (JP, A) JP-B 52-17693 (JP, B1) JP-B 56-31615 (JP, B1)

Claims (1)

[Claims] 1. A seam formation comprising a needle (5) which is moved up and down across a work cloth support surface (2) to form a stitch on the work cloth (W) on the work cloth support surface (2). A device, a feeding device (8) for giving a feed to the work cloth (W) on the work cloth support surface (2), and a sewing element array in which sewing elements (13) such as various characters and patterns are arranged and displayed. Part (12) and its sewing element array part (12)
An input device (I) having a designating member (10) for designating one sewing element (13), and a box-shaped sewing area (Ab) or circle provided on the input device (I). Area selection key (15c, 15d) for selecting one of the sewing areas (Ac) of
Box-shaped sewing area (Ab) or circle-shaped sewing area (A) selected by the area selection keys (15c, 15d).
One of the c) is displayed, the sewing element (13) designated by the designating member (10) is displayed in the area (Ab, Ac), and the displayed sewing element (13) is displayed. Display device (11) for simultaneously displaying the enlargement / reduction data, coordinate data, etc., and the enlargement / reduction data of the sewing element (13) provided on the input device (I) and displayed on the display device (11). , A change key (16) for changing coordinate data, a storage means (28) for storing sewing data corresponding to each of the sewing elements (13), and a sewing element (13) designated by the input device (I). )
And a control means (20) for controlling the operation of the stitch forming device and the feeding device (8) based on the sewing data corresponding to the sewing machine.