CN1308157A - Buttonhole machine and its method of forming eyelet stitch - Google Patents

Abstract

A complement holed stitches fabrication is carried out after forming a zigzag stitches 85 extending over both sides of the button hole 80 under the condition that a button hole 80 and defective holed stitches 70a are formed with a basting for stitching. Then the portions of the zigzag stitches 85 extending across the hole 80 are cut. A linking seam 187, a reinforcing seam 186, a linking seam 188, and a reinforcing seam 185 are continuously sewn in this order in holing seam planned parts 71a-74a and then a holed stitches is continuously sewn with a zigzag basting. With rectangular basting, befor sewing the holed stitches, a plurality of linear reinforcing stitches 285a-285c, 287a-287c and a plurality of cross stitches 286a-286c, 288a-288c are formed continuously on a plurality of circles in a loop-shape.

Description

The method of lockstitch button holder and formation buttonhole stitch

The method that the present invention relates to lockstitch button holder and form buttonhole stitch.

Traditional lockstitch button holder has cloth-feeding device, apparatus for sewing and control device, cloth-feeding device is used for carrying processing cloth, apparatus for sewing is used for forming needle tracking on processing cloth, and cloth-feeding device controlled by control device and apparatus for sewing makes the buttonhole stitch of formation have a pair of saw-tooth stitch and a pair of eyelet needle tracking.In addition, also be provided with the buttonhole producing device that on processing cloth, forms the band cutter of buttonhole,, can form buttonhole in the buttonhole stitch inboard by a succession of action of making buttonhole stitch by control device control knob button hole producing device.

Aforementioned apparatus for sewing has shank, eedle substantially, drives the shank up-down drive device of shank and make shank pendulous device that shank swings, shuttle, coil grabber etc. up and down, described eedle is provided in the shank lower end and is equipped with from reaching the standard grade that the supply of reaching the standard grade is being extended, described shuttle is purchased in the package of needle plate (cloth pushing table) downside and bottom line, described coil grabber near the eedle that moves up and down of needle plate downside, catch reach the standard grade and with the bottom line interlacing of stretching out from shuttle.

For the buttonhole stitch (as the rectangle buttonhole stitch) that on processing cloth, forms by lockstitch button holder, for example, buttonhole stitch 70 among Figure 15, usually eyelet (is reinforced seam, the knotting seam) width of needle tracking 73,74 is wideer than the width of saw- tooth stitch 71,72, most of distance between needle point tracers in the eyelet needle tracking 73,74 (from needle falling point to the distance next needle falling point, as be 3.5mm) is longer than the distance between needle point tracers (as 1.5mm) of saw- tooth stitch 71,72.

Like this, because most of distance between needle point tracers of eyelet needle tracking is long, when carrying out eyelet system, the processing cloth of eyelet needle tracking corral is subjected to the tractive of line and the wrinkle that contracts easily, thereby be difficult to form buttonhole stitch attractive in appearance, when particularly forming buttonhole stitch on the processing cloth that uses material big by retractility or the little material of thickness to constitute, foregoing problems is more remarkable.

Therefore, for the processing cloth that do not make eyelet needle tracking corral because of the tractive of the line wrinkle that contracts, when carrying out eyelet system,, can not moderately guide the eyelet needle tracking though can consider the pulling force of reaching the standard grade to be diminished by transverse arm and line adjuster.

In addition, when forming the eyelet needle tracking on the processing cloth that is made of batt material such as knitted fabrics, the eyelet needle tracking slips into the downside of processing cloth fluffing portion easily, makes the bad order of eyelet needle tracking.

When forming the saw-tooth stitch in the buttonhole stitch on the little processing cloth of the big processing cloth of retractility or cloth thickness, the processing cloth of saw-tooth stitch corral also is difficult to form buttonhole stitch attractive in appearance because of the line tractive wrinkle that contracts easily.

As the technology that addresses this problem, there is the spy to open the processing method of making of clear 54-38838 communique record.In the method, as shown in Figure 1,, form many reinforcement needle trackings 301 and after strengthening processing cloth, form zigzag needle tracking (saw-tooth stitch) continuously with linear in the predetermined everywhere that forms the position of pairing left and right saw-tooth stitch.

Therefore, in this method, because only forming several reinforcements in the predetermined formation of saw-tooth stitch position strengthens with needle tracking, and do not carry out any reinforcement in the position predetermined formation of eyelet needle tracking, the processing cloth of eyelet needle tracking corral is difficult to form buttonhole stitch attractive in appearance because of the line tractive wrinkle that contracts easily.

In addition, for traditional lockstitch button holder, after buttonhole stitch forms, or forming in the way at buttonhole stitch, (between the left and right sides saw-tooth stitch of buttonhole stitch) falls cutter formation buttonhole in the buttonhole stitch inboard according to cutter activation point data.

But, form the following time of situation that has used up bottom line in the way at buttonhole stitch, under the state that has formed imperfect buttonhole stitch, finished the making of buttonhole by the buttonhole producing device.

Like this, formed on the cloth under the state of imperfect buttonhole stitch when having made buttonhole in processing by the buttonhole producing device, do not carry out the words that buttonhole stitch is made in case on processing cloth, do not carry out any preparation with regard to replenishing, when particularly on position, buttonhole both sides, forming the saw-tooth stitch of buttonhole stitch, because the easy projection of processing cloth meeting, and processing cloth becomes the wrinkle that contracts easily because of the line tractive, and buttonhole also expansion easily on width, thereby can not form buttonhole stitch attractive in appearance.

When forming buttonhole stitch on the processing cloth that is made of batt material such as knitted fabrics, buttonhole stitch slips into the downside of processing cloth fluffing portion easily, makes the bad order of buttonhole stitch.In order to address this problem, though can consider to form buttonhole stitch predetermined the formation on the position of buttonhole stitch again behind overlapping cloth or the paper etc., its defective is that working load strengthens, and has reduced operating efficiency, and appearance is decorated bad.

The objective of the invention is, on the basis of traditional lockstitch button holder and buttonhole stitch formation method, can be simply and the more accurate eyelet needle tracking that is aesthetically formed buttonhole stitch attractive in appearance, can moderately guide and form the eyelet needle tracking, can make by playing the eyelet needle tracking decorative appearance that forms on the processing cloth that batt material constitutes good, can form the eyelet needle tracking of strengthening attractive in appearance in the position predetermined formation of a pair of eyelet needle tracking, even under the state that has formed imperfect buttonhole stitch on the processing cloth, formed under the situation of buttonhole, also can form buttonhole stitch attractive in appearance simply exactly subsequently, can make by playing the decorative appearances such as buttonhole stitch that form on the processing cloth that batt material constitutes good.

In order to achieve the above object, the invention provides a kind of lockstitch button holder, comprise cloth-feeding device, apparatus for sewing, buttonhole producing device and control device, cloth-feeding device is used for carrying processing cloth, apparatus for sewing is used for forming needle tracking on processing cloth, the buttonhole producing device has cutter and form buttonhole on processing cloth, control device control cloth-feeding device and apparatus for sewing are when forming buttonhole stitch, control knob button hole producing device forms buttonhole in the inboard of buttonhole stitch, it is characterized in that aforementioned control device control cloth-feeding device and apparatus for sewing, forming under the situation of buttonhole by the buttonhole producing device under the state that has formed imperfect buttonhole stitch, in the scope of position, buttonhole both sides, replenishing behind the formation zigzag needle tracking and carry out making of buttonhole stitch.

The present invention also provides a kind of lockstitch button holder, comprise cloth-feeding device, apparatus for sewing, buttonhole producing device and control device, cloth-feeding device is used for carrying processing cloth, apparatus for sewing is used for forming needle tracking on processing cloth, the buttonhole producing device has cutter and form buttonhole on processing cloth, control device control cloth-feeding device and apparatus for sewing are when forming buttonhole stitch, control knob button hole producing device forms buttonhole in the inboard of buttonhole stitch, it is characterized in that aforementioned control device control cloth-feeding device and apparatus for sewing, beginning to carry out in the scope of position, buttonhole both sides, to form needle tracking in a zigzag before buttonhole stitch makes.

The present invention also provides a kind of method that forms buttonhole stitch, comprise that control cloth-feeding device and apparatus for sewing form buttonhole stitch, cloth-feeding device is used for carrying processing cloth, apparatus for sewing is used for forming needle tracking on processing cloth, it is characterized in that: the first step forms needle tracking in a zigzag predetermined formation in the scope of both sides, buttonhole position, second step formed buttonhole stitch on the needle tracking in a zigzag at this saw.

The present invention also provides a kind of lockstitch button holder, comprise cloth-feeding device, apparatus for sewing and control device, cloth-feeding device is used for carrying processing cloth, apparatus for sewing is used for forming needle tracking on processing cloth, cloth-feeding device controlled by control device and apparatus for sewing forms the buttonhole stitch with a pair of saw-tooth stitch and a pair of eyelet needle tracking, it is characterized in that: aforementioned control device is being controlled cloth-feeding device and apparatus for sewing, before the eyelet needle tracking that forms buttonhole stitch, form the reinforcement needle tracking that intersects with the eyelet needle tracking on one side at least predetermined the formation in the position of this eyelet needle tracking.

The present invention also provides a kind of method that forms buttonhole stitch, comprise that control cloth-feeding device and apparatus for sewing form buttonhole stitch, cloth-feeding device is used for carrying processing cloth, apparatus for sewing is used for forming needle tracking on processing cloth, it is characterized in that: before the eyelet needle tracking of aforementioned buttonhole stitch forms, form and eyelet needle tracking crossed reinforced needle tracking predetermined the formation in the position of this eyelet needle tracking.

The present invention also provides a kind of lockstitch button holder, comprise cloth-feeding device, apparatus for sewing and control device, cloth-feeding device is used for carrying processing cloth, apparatus for sewing is used for forming needle tracking on processing cloth, cloth-feeding device controlled by control device and apparatus for sewing forms the buttonhole stitch with a pair of saw-tooth stitch and a pair of eyelet needle tracking, it is characterized in that: aforementioned control device is being controlled cloth-feeding device and apparatus for sewing, when the making of buttonhole stitch, before forming this buttonhole stitch, each saw-tooth stitch in the predetermined formation of a pair of saw-tooth stitch position is transversely moved many linearities that form strengthen forming continuously with needle tracking near-ring shape multi-turn with many transition that form respectively in needle tracking and the predetermined formation of a pair of buttonhole stitch position.

The present invention also provides a kind of method that forms buttonhole stitch, comprise that control cloth-feeding device and apparatus for sewing form buttonhole stitch, cloth-feeding device is used for carrying processing cloth, apparatus for sewing is used for forming needle tracking on processing cloth, it is characterized in that: when buttonhole stitch is made, before forming this buttonhole stitch, near-ring shape multi-turn forms many linearities continuously and strengthens with needle tracking and many transition needle trackings, this reinforcement needle tracking is transversely to move at predetermined each saw-tooth stitch that forms in the position of a pair of saw-tooth stitch to form, and this transition needle tracking forms respectively predetermined the formation in the position of a pair of buttonhole stitch.

Fig. 1 is a saw-tooth stitch and the plane of strengthening with needle tracking in traditional needle tracking processing method;

Fig. 2 is the perspective view of lockstitch button holder in the embodiment of the invention;

Fig. 3 is the right view of lockstitch button holder critical piece;

The perspective view of Fig. 4 cloth-feeding device;

Fig. 5 is the perspective view of apparatus for sewing;

The perspective view of Fig. 6 buttonhole producing device;

Fig. 7 is the control flow chart with control device;

Fig. 8 is the front view of operation keyboard;

Fig. 9 is the chart (1/4) of a plurality of parameters of expression;

Figure 10 is the chart (2/4) of a plurality of parameters of expression;

Figure 11 is the chart (3/4) of a plurality of parameters of expression;

Figure 12 is the chart (4/4) of a plurality of parameters of expression;

Figure 13 is expression buttonhole stitch shape figure, is that rectangle buttonhole stitch (b) is that radial buttonhole stitch (c) is circular buttonhole stitch (a);

Figure 14 utilizes control device to implement the programme diagram of control;

Figure 15 is the buttonhole stitch plane;

Figure 16 is that the predetermined buttonhole stitch of expression forms the size at position and the plane that keyhole is made geomery;

Figure 17 is incomplete buttonhole stitch plane;

Figure 18 is incomplete buttonhole stitch and sews up baste saw-tooth stitch plane;

Figure 19 is a plane of sewing up baste saw-tooth stitch and buttonhole stitch;

Figure 20 is that the predetermined buttonhole stitch of expression forms the size at position and the plane of stitching baste saw-tooth stitch geomery;

Figure 21 strengthens in sawtooth (mountain) the shape baste with needle tracking and the transition plane with needle tracking (in making on the way);

Figure 22 is a plane of strengthening using with needle tracking and transition needle tracking (sewing finishing) in sawtooth (mountain) the shape baste;

Figure 23 is a plane of strengthening using with needle tracking and transition needle tracking and buttonhole stitch in sawtooth (mountain) the shape baste;

Figure 24 is the plane that the predetermined buttonhole stitch of expression forms spot size and zigzag baste needle tracking geomery;

Figure 25 is a plurality of parameters in a part of sawtooth (mountain) the shape baste change shape that presents in diagrammatic form;

Figure 26 is a plane of strengthening using with needle tracking and transition needle tracking in sawtooth (mountain) the shape baste change shape;

Figure 27 strengthens in sawtooth (mountain) the shape baste change shape with needle tracking and the transition plane with needle tracking and buttonhole stitch;

Figure 28 is a plane of strengthening using with needle tracking and transition needle tracking in sawtooth (mountain) the shape baste change shape;

Figure 29 is the chart of eyelet needle tracking kind before the expression;

Figure 30 is the chart of expression back (interior) eyelet needle tracking kind;

Figure 31 strengthens in the rectangle baste with needle tracking and the transition figure that makes with needle tracking and buttonhole stitch, (a) be the state diagram of rectangle baste the 1st circle needle tracking of formation, (b) be the state diagram of rectangle baste the 2nd circle needle tracking of formation, (c) be the state diagram of rectangle baste the 3rd circle needle tracking of formation, (d) be the state diagram of the buttonhole stitch of formation;

Figure 32 is the plane that the predetermined buttonhole stitch of expression forms spot size and rectangle baste needle tracking geomery;

Figure 33 is the plane that needle tracking and a part of buttonhole stitch are used in transition in the expression rectangle baste change shape.

Below, with reference to the description of drawings embodiments of the invention.

Embodiments of the invention are to be example with the so-called lockstitch button holder that is suitable for making buttonhole of the present invention, for example, on processing cloth, form rectangle buttonhole stitch shown in Figure 15 in, form buttonhole 80 in the inboard of this buttonhole stitch 70.But, the place ahead and the left with Fig. 2 is that benchmark describes.In addition, below to labels such as buttonhole stitch and buttonhole, quote label such as buttonhole stitch 70 and buttonhole 80 among Figure 15.

As shown in Figure 2, in lockstitch button holder M, sewing machine table 1 is provided with motor of sewing machine 2, be used to make pedal 3 that each drive division (describing in detail later on) of having this motor 2 starts and stop, a plurality of parameters of the shape of regulation buttonhole stitch 70 and size etc. etc. being set the operation board 4 of input and the control device 5 of aforementioned each drive division of drive controlling etc.

Lockstitch button holder M has the sewing machine main body with base plate 6 and socle 7 and arm 8, shown in Fig. 3-6, at the buttonhole producing device 60 that the cloth-feeding device of carrying before and after the processing cloth 10, the apparatus for sewing 30 of processing formation needle tracking on the cloth is set on this sewing machine main body and on processing cloth, forms the band cutter 61 of buttonhole 80, when being controlled cloth-feeding device 10 and apparatus for sewing 30 and formed buttonhole stitch by control device 5, controlled buttonhole producing device 60 is in the buttonhole stitch 70 inboard buttonhole 80 that form.

As shown in Figure 4, aforementioned cloth-feeding device 10 has cloth pushing table 11, presser feet 12, stepper motor 13 etc., pressing under the state of processing cloth with presser feet 12 on the cloth pushing table 11, driving cloth pushing table 11 and presser feet 12 integratedly, processing cloth is carried integratedly by stepper motor 13.Cloth pushing table 11 front and back are long plate shape, and its leading section has the slotted hole 11a that is used to make buttonhole stitch 70 and buttonhole 80, and a pair of guided plate 14 is installed on the top of underframe 6, and cloth pushing table 11 is supported in the removable guiding in front and back between this guided plate 14.

At the fixing movable part 15 of the rearward end downside of cloth pushing table 11, rear side at this movable part 15 connects movable part 17 by front and back lengthwise connecting rod 16, on this movable part 17 with near cloth pressure arm 18 the Y-axis axle with pivotal support rearward end, at the leading section of this cloth pressure arm 18 cloth is installed and presses presser feet 12.Presser feet 12 passes through cloth pressure arm 18 application of force downwards by the elastomeric element (not shown), for example, by operating pedal 3, can carry out the height of presser feet 12 and regulate.

Connecting rod 16 is inserted earthings and is fixed on the left part of movable part 15,17 and extends, and can move forward and backward guiding by 1 pair of bearing 19 be supported in the sewing machine frame in the both sides, front and back of movable part 15,17.In addition, front and back elongate rod 20 is fixedly installed in the sewing machine frame on the right side of connecting rod 16, can front and back guiding support the right part of movable part 17 on this bar 20 by bearing 17a with moving freely.

On the output shaft of stepper motor 13, fixing and drive to transmit belt wheel 13a, drive transmit belt wheel 13a the rear driven transmission belt wheel (not shown) pivotal support in Sewing machines, on these two transmission belt wheels, hanging endless belt conveyer 21.On the part of this conveyer belt 21, fixing movable part 17, when stepper motor 13 is driven, driving movable part 15,17 and cloth pushing table 11 and presser feet 12 integratedly by endless belt conveyer 21 front and back.

As Fig. 3, shown in Figure 5, aforementioned apparatus for sewing 30 has shank 31, eedle 32, the shank pendulous device 34 that up and down reciprocatingly drives the shank up-down drive device 33 of shank 31 and shank is swung, the shuttle (not shown), coil grabber (not shown) etc., described eedle is configured in the shank lower end and is mounted with from reaching the standard grade that the supplies of reaching the standard grade such as bobbin are stretched out, described shuttle bottom line in cloth pushing table 11 downside packages, and described coil grabber is caught near the eedle 32 that moves up and down of cloth pushing table 11 downsides and reached the standard grade and entwine together with the bottom line that stretches out from shuttle.

As shown in Figure 5, in shank up-down drive device 33, on the needle bar frame of representing with chain-dotted line 35 that can be provided with on the arm 8 with freely swinging, can swing up and down and support shank 31, on shank 31, fix shank folder 36.Rear side at shank 31 is being provided with shank connecting rod 37, its upper end 37a is connected to going up on the axle 38 of rotation, so that make circular motion along circle C in the vertical plane, wherein go up axle 38 and rely on motor of sewing machine 2 to rotate, be connected square block 39,40 respectively freely to rotate on the front side of shank connecting rod 37 lower end 37b and the rear side.About the rear portion of shank folder 36 forms to the guide channel 36a of rectangular cross section, in this guide channel 36a, move freely along left and right directions in conjunction with on the square block 39 of front side.

Rear portion at shank folder 36 is provided with shank rod guidance device 41, the square block 40 that can make rear side among the vertical channel 41a that on this shank rod guidance device 41, forms in conjunction with, and only guiding is in vertical direction moved.In addition, fixing tabular shank guide 42 in the side of needle bar frame 35, in long cave 42a that extending along shank 31 and that in this shank guide 42, form, in conjunction with pressing from both sides the projection 36b that 36 left part is given prominence to by shank.In the shank up-down drive device 33 that constitutes like this, give 37 reinforcings of shank connecting rod by motor of sewing machine 2 rotating drive from last axle 38, pass to shank 31 by square block 39 and shank folder 36, shank 31 is moved up and down.

In shank pendulous device 34, at the rear side of needle bar frame 35 swing arm 45 is set, can be rotatablely equipped with square block 46 in the front side, lower end of this swing arm 45, this square block combines with the front portion, lower end of needle bar frame 35.The embedded output shaft 47a that is fixing stepper motor 47 in the upper end of swing arm 45 gives swing arm 45 reinforcings from this stepper motor 47, passes to shank 31 by square block 46 and needle bar frame 35, and shank 31 is swung.

Describe at this rectangle buttonhole stitch Figure 15.

This buttonhole stitch 70 has left saw-tooth stitch 71 and right saw-tooth stitch 72, and eyelet needle tracking 73 before its leading section has has back (interior) eyelet needle tracking 74 in rearward end.Usually when carrying out the making of buttonhole stitch 70, the order that forms needle tracking is the remainder of the part of preceding eyelet needle tracking 73, left saw-tooth stitch 71, back eyelet needle tracking 74, right saw-tooth stitch 72, preceding eyelet needle tracking 73.Can utilize operation board 4 to set length a-e shown in Figure 15 etc.

As shown in Figure 6, aforementioned buttonhole producing device 60 has cutter 61, cutter handle 62, cutter installation shaft 63, cutter start wrist 64, cutter driving solenoid 65 etc.Cutter handle 62 is installed in lower end in cutter installation shaft 63, is fixing cutter 61 with screw 62a on cutter handle 62.The rearward end of cutter start wrist 64 bends to nearly L font upward, and the central part of its fore-and-aft direction is supported on the Sewing machines framework in the scope of axle center, the left and right sides swingably by pivot 64a.

The leading section of cutter start wrist 64 spring 66 application of force upward, the leading section of cutter start wrist 64 is connected the top of cutter installation shaft 63, and the rear upper end of cutter start wrist 64 is connected to from cutter by connector 67 and drives on the rearward outstanding protruding 65a of solenoid 65.The protruding 65a that makes cutter drive solenoid 65 give prominence to/keeps out of the way, and can make cutter start about in the of 61 by cutter start wrist 64 and cutter installation shaft 63.In addition, because it is to make protruding 65a can give prominence to the bi-directional electromagnetic coil that also can keep out of the way backward forward that cutter drives solenoid 65, therefore, can be provided from cutter installation shaft 63 to cutter 61 Weight Loaded compensation by spring 66, this also can simplification device.

The following describes the control system of lockstitch button holder M.

As shown in Figure 7, control device 5 comprise the microcomputer that constitutes by CPU5a and ROM5b and RAM5c critical piece, from input interface 5d corresponding to inputs such as the signal of the starting switch 3a of pedal 3 modes of operation or the signals of operation board 4; Motor of sewing machine 2; Stepper motor 13 and 47; Drive the output interface 5e that passes through not shown drive circuit output drive signal on the solenoid 65 at cutter, these parts are connected with bus 5f.

In ROM5b, storing and using operation board 4 aforementioned cloth-feeding device 10 and apparatus for sewing 30 and buttonhole producing device 60 to be carried out the control program etc. of drive controlling to a plurality of data computation handling procedures of making setting program that parameter etc. carries out various settings, the stitch data and the cutter drive part bit data of buttonhole stitch 70 being calculated according to a plurality of parameters of having stipulated buttonhole stitch 70 shapes and size, according to stitch data and cutter activation point data.

In the present embodiment, control device 5 can be controlled cloth-feeding device 10 and apparatus for sewing 30, under the state that has formed imperfect buttonhole stitch 70a as shown in figure 17, formed under the situation of buttonhole 80 by buttonhole producing device 60, after forming the zigzag needle tracking 85 (stitching baste) in buttonhole 80 both sides scopes shown in Figure 180, replenish and carry out buttonhole stitch shown in Figure 19 70 making.

So aforementioned setting program can be by using 4 pairs of operation boards to stipulate that a plurality of parameters etc. of needle tracking 85 shapes and size in a zigzag set processing; Aforementioned data computing program can be made the stitch data of needle tracking 85 in a zigzag according to this parameter.

In addition, control device 5 can be controlled cloth-feeding device 10 and apparatus for sewing 30, has a pair of saw-tooth stitch 71 as shown in figure 15 in formation, 72 and a pair of eyelet needle tracking 73, before 74 the buttonhole stitch 70, as Figure 21, shown in Figure 22, forming (sawtooth (mountain) shape baste) a pair of sawtooth (mountain) shape continuously strengthens with needle tracking 185,186 and a pair of transition with needle tracking 187,188, this is strengthened with needle tracking 185, the 186th, at the predetermined position 73a that forms of a pair of eyelet needle tracking, last and each eyelet needle tracking 73 of 74a, 74 intersect to form, and this transition is with needle tracking 187, the 188th, vertical a pair of saw-tooth stitch is scheduled to form position 71a respectively, 72a forms.

So aforementioned setting program can stipulate that a pair of reinforcement sets processing with needle tracking 185,186 and a pair of transition with needle tracking 187,188 shapes and big or small a plurality of parameters etc. by using 4 pairs of operation boards; Aforementioned data computing program can be made needle tracking 187,188 is used in a pair of reinforcement with needle tracking 185,186 and a pair of transition stitch data according to these parameters.

In addition, control device 5 can be controlled cloth-feeding device 10 and apparatus for sewing 30, shown in Figure 31 (a)-(d), when making buttonhole stitch 70, before this buttonhole stitch 70 forms, be scheduled to form position 71a at a pair of saw-tooth stitch, each saw-tooth stitch 71 of 72a place, 72 transversely move many (as 3) linearities that form strengthens with needle tracking (285a-285c, 287a-287c) and at a pair of eyelet needle tracking be scheduled to form position 73a, each moves many (as 3) transition needle tracking (286a-286c, 288a-288c) near-ring shape multi-turn (as the 3 circles) formation (rectangle baste) continuously of formation among the 74a.

So aforementioned setting program can be stipulated aforementioned reinforcement needle tracking 285a-285c by using 4 pairs of operation boards, 287a-287c and transition needle tracking 286a-286c, a plurality of parameters of 288a-288c shape and size etc. are set processing; Aforementioned data computing program can be made several according to these parameters and be strengthened using needle tracking 285a-285c, 287a-287c and several transition needle tracking 286a-286c, the stitch data of 288a-288c.

With reference to Fig. 8 operation board 4 is described, be provided with 4 LED90 and [SELECT] key 91 of the present control model of expression lockstitch button holder M at the central portion of operation board 4; Be provided with [RESET] key 92 of restarting lockstitch button holder M after being used for abnormality processing near the left end of operation board 4, be used for according to driven by program cutter 61 [CUTTER] key 93, show display 94, [PROGRAM NO] key 95 that constitutes by 2 groups of sections.Be provided with LED96 that the expression power supply is ON, LED97 that expression has any unusual generation, show the display 98 that constitutes, key 99, [ENTER] key 100 up and down at the right part of operation board 4 by 4 groups of sections.

Utilize [SELECT] key 91 can select a ground and switch automatic mode (AUTO), test pattern (TESTFEED), manual mode (MANUAL) and program schema (PROGRAM), automatic mode is used to carry out common making, test pattern is used to confirm the variation that eedle 32 in fact falls the single needle falling point that does not carry out making, manual mode is used to allow the user rotate not shown transmission belt wheel manually to make, program schema is used to carry out various settings, in these patterns are switched, bright at the pattern LED90 lamp of present setting.

In case set program, a plurality of parameters among Fig. 9-Figure 12 (serrations revolution, buttonhole stitch shape, cutter size ...) in a corresponding numbering be presented on the display 94, the present setting value of this parameter is presented on the display 98.The numbering that shows on the display 94 can change by enough [PROGRAM NO] key 95 circularly.Under the state that any numbering is shown, the pre-set parameter that shows on 99 pairs of displays 98 of key about utilizing increases and decreases change, utilizes [ENTER] key 100 (affirmation) to replenish and confirms.

For various pre-set parameters, under the situation as parameter constant behind the connection power supply, the initial value of storing among the ROM5b (default value) is effective.In addition, key 99 pressing operations once only increase and decrease the increase and decrease amount (step) that parameter is being set at every turn up and down.When the pattern beyond the setting program, on display 98, show various transmission information, on display 94, show the parameter numbering of selecting now.

As Fig. 9-shown in Figure 12, as aforementioned a plurality of parameters, shown in the content of form record, revolution on the serrations, buttonhole stitch shape, cut lengths are arranged, length, the sawtooth needle gage of sawtooth seam when multistage falls cutter ... Deng, the numbering of corresponding various parameters is the numberings that show on the display 94 of operation board 4.For various parameters (as the zigzag needle gage of numbering [04]), can in the setting range of 0.20-2.00mm, set, under this setting situation, the key up and down 99 of operation board 4 is whenever pushed one and is is only increased and decreased apart from 0.05mm respectively.In addition, can set the initial value (the zigzag needle gage of numbering [04] is 0.35mm) of each parameter.In the ROM5b of control device 5, storing with a plurality of parameters and numbering corresponding setting range data and stepping data and initial value data.

At this, in the buttonhole stitch shape of numbering [01], as shown in figure 13, (a) rectangle, (b) radiation, (c) circular and not shown a plurality of arbitrary shapes are arranged, when setting the buttonhole stitch shape, as shown in Figure 9, after the pattern switching with 4 pairs of programs of operation board, under the state that shows [01] on the display 94, for example, can be set to make and be shown as (a) rectangle of 0 on the display 98.In addition, in Figure 15, a represents to be numbered the cut lengths of [02], and b represents to be numbered the sawtooth needle gage of [04], and c represents to be numbered the zigzag width of [05], and d represents to be numbered the preceding eyelet length of [20], and e represents to be numbered the back eyelet length of [30].

Particularly, as a plurality of parameters that are used for baste, as shown in figure 11, the rectangle baste number of times that have the stitching baste number of times that is numbered [45], the zigzag baste number of times that is numbered [46], is numbered [47] ... be numbered the baste eyelet Y pin number (in the zigzag baste effectively) of [54], the setting range data of numbering corresponding to these parameters and stepping data and initial value data are stored among the ROM5b of control device 5.

At this, in a plurality of parameters in Fig. 9-Figure 12, in Figure 11, be numbered the parameter of 45-54, most of parameter be a plurality of parameters (hereinafter referred to as the buttonhole stitch parameter) corresponding to the regulation buttonhole stitch shape of control device 5 and size concrete be the parameter that is numbered [01]-[11], [20]-[23], [30]-[33], [40]-[44], [55]-[58], [63]-[67].

In addition, parameter [45] is the parameter of sewing up in the baste, when carrying out the making of needle tracking 85 in a zigzag, the stitching baste number of times that is numbered [45] is set at 1, is not carrying out then being set at 0 under this situation of making.

Like this, parameter [45] is set at 1 when sewing up baste, in a part of parameter (specifically being meant the parameter that is numbered [02], [05], [07], [20], [22], [30]) of the buttonhole stitch of above-mentioned buttonhole stitch shape of regulation and size be numbered the parameter of [49]-[52], for control device 5, become a plurality of parameters (hereinafter referred to as baste needle tracking parameter) with regulation zigzag needle tracking 85 shapes and magnitude function.Like this, a part of buttonhole stitch parameter can be applied flexibly and be baste needle tracking parameter.

Parameter [46] is to the parameter in the zigzag baste, implementing to strengthen using needle tracking 185,186 and transition to use needle tracking 187,188 o'clock, the zigzag baste number of times of numbering [46] is set at 1, does not carry out this number of times of making and is set at 0.

Like this, be set at 1 when carrying out the zigzag baste being numbered [46], be numbered the parameter of [49]-[54] among a part of parameter of buttonhole stitch (specifically being meant the parameter that is numbered [02], [05], [07], [20], [22], [30]) and Figure 11, for control device 5, become and have regulation and strengthen with needle tracking 185,186 and transition a plurality of parameters (this is equivalent to baste needle tracking parameter) with needle tracking 187,188 shapes and magnitude function.So, also can apply flexibly a part of buttonhole stitch parameter in this case and be baste needle tracking parameter.

Parameter [47] is the parameter during the rectangle baste is set, carry out under the situation of baste in formation position 73a, 74a place are scheduled in many reinforcements at the predetermined position 71a of formation of various saw-tooth stitches, 72a place with needle tracking and various eyelet needle tracking many transition with needle tracking, the rectangle baste number of times of numbering [47] is set at arbitrary value among the 2-5, and the rectangle baste that is not numbered [47] is set at 0.In (a)-(d) of Figure 31, the rectangle baste number of times of numbering [47] is set at 3, be illustrated in each saw-tooth stitch and be scheduled to form position 71a, 3 reinforcements of 72a place baste with needle tracking 285a-285c, 287a-287c, at the predetermined position 73a of formation of each eyelet needle tracking, 3 transition of 74a place baste needle tracking 286a-286c, 288a-288c.

Like this, parameter [47] is being set at non-0 number when carrying out the rectangle baste, a part of parameter of buttonhole stitch (specifically being meant the parameter that is numbered [02], [05], [07], [20], [22], [30]) and be numbered the parameter of [47], [49]-[52], for control device 5, become a plurality of parameters (hereinafter referred to as the baste parameter) with regulation reinforcement needle tracking 285a-285c, 287a-287c and transition needle tracking 286a-286c, 288a-288c shape and magnitude function.Therefore, be baste needle tracking parameter even also a part of buttonhole stitch parameter can be applied flexibly in this case.

Below, with reference to the flow chart of Figure 14 the control of using aforementioned control device 5 to implement is described.

At this, which kind of baste does not carry out, and the situation made from rectangle buttonhole stitch among Figure 15 is that example describes.

Lockstitch button holder M begins to carry out this control in the time of energising, at first, after executing initial setting (S1), carries out parameter setting and handles (S2).In this parameter is handled, for example, behind the additional connection power supply, the initial value of storing among the ROM5b is set by a plurality of parameters among Fig. 9-Figure 12, as previously mentioned, use operation board 4, can replenish the setting value of a plurality of parameters is carried out change setting.At this, because of not forming needle tracking 85 in a zigzag, the stitching baste number of times of numbering [45] is set at 0, simultaneously,, the rectangle baste of the zigzag baste number of times of numbering [46] and numbering [47] time number average is set at 0 because of not carrying out other baste.

Secondly, in case operation [ENTER] key 100 finishes parameter setting (S3:Yes), read in a plurality of pre-set parameters (S4), the stitch data (the pin data fall) that calculates buttonhole stitch 70 according to this setting value (S5), calculate cutter activation point data with landing cutter 61 (S6), these data are charged to RAM5c.

Specifically, in S5 and S6 by following such stitch data and cutter activation point data of making.

At this, as shown in figure 16, according to the buttonhole stitch parameter, the predetermined position that forms of regulation buttonhole stitch.Stipulate among the figure, a is cut lengths [02], and b is zigzag needle gage [04], and f is for cutting X to spacing [06], c is zigzag width [05], d is a preceding eyelet length [20], and e is a back eyelet length [30], and g is a preceding eyelet needle gage [21], h is a back eyelet needle gage [31], i is for cutting Y to spacing [07], and j is that zigzag width [05]+preceding eyelet width is proofreaied and correct [22], and k is that zigzag width [05]+back eyelet width is proofreaied and correct [32].

And, origin position (0,0) is defined in buttonhole stitch front end central portion, imagination is X-axis with the pin direction that falls and is that Y-axis constitutes orthogonal coordinate system with the cloth feeding direction.Y coordinate 0 ∽ d scope is the predetermined position eyelet needle tracking 73a of formation of preceding eyelet needle tracking, y coordinate d ∽ (d+a+2i) scope is predetermined position 71a, the 72a of forming of saw-tooth stitch, and y coordinate (d+a+2i) ∽ (d+a+2i+e) scope is the predetermined position 74a of formation of back eyelet needle tracking.

Therefore, the data creating of left saw-tooth stitch 71 is, stitch cutting hole predetermined form position 71a left end (the x coordinate :-f/2) go up and the left end of the predetermined position 71a of formation of left saw-tooth stitch (the x coordinate :-intersecting by y on f/2-c) arranged side by side to needle gage b.

Equally, the data creating of right saw-tooth stitch 72 is, stitch is at predetermined position right-hand member (the x coordinate: f/2) go up and at predetermined right-hand member (the x coordinate: intersecting arranged side by side to needle gage b by y equally f/2+c) that forms position 72 of right saw-tooth stitch that forms of cutting hole.

And the data creating of back knotting portion 74 is, stitch preceding eyelet needle tracking predetermined form position 74a left end (the x coordinate :-f/2-k) go up and right-hand member (x coordinate: intersecting by y arranged side by side f/2+k) to needle gage h.

And the data creating of preceding knotting portion 73 is, stitch back eyelet needle tracking predetermined form position 73a left end (the x coordinate :-f/2-j) go up and right-hand member (x coordinate: intersecting by y arranged side by side f/2+j) to needle gage g.

(the x coordinate: stitch position f/2) makes the cutter activation point data that show position, cutter whereabouts according to the predetermined formation of cutting hole in right saw-tooth stitch 72 data position right-hand member.Therefore, when forming the position right-hand member, drive cutter and just can form cutting hole when pin arrival and through this cutting hole is predetermined.

Then, (S7, Yes), according to the stitch data that is stored among the RAM5c, control drives cloth-feeding device 10 and apparatus for sewing 30, realizes making processing (S8) when pedal 3 is stepped into operation.Can be on one side calculate stitch data,, begin to make processing after also can all having calculated stitch data Yi Bian make processing with previous any pin number.

Subsequently, according to the cutter activation point data that are stored among the RAM5c, during both sides form saw- tooth stitch 71,72, when the cutter 61 that is sent processing cloth relatively arrives position, cutter whereabouts, make to make and have no progeny (S10) in temporary transient, drive whereabouts cutter 61 (S11) by buttonhole producing device 60 and form buttonhole 80.The activation point of cutter 61 becomes in right saw-tooth stitch 72 making or makes and just finish the position that stipulate the back.

Afterwards, (S12 No), turns back to S7, and (S7 Yes), begins to make for the processing of making of S8, in case (S12 Yes), turns back to S2 to the sewing finishing of buttonhole stitch 70 once more to step into when operation at pedal 3 when not finishing to make.

Just can form the buttonhole stitch 70 of Figure 15 by carrying out above-mentioned action.

, in the formation of buttonhole stitch 70 way, used up under the situation such as bottom line, as shown in figure 17, under the state that is forming imperfect buttonhole stitch 70 on the processing cloth, finished the making of buttonhole.

In this case, finish or make to be forced to finish, turn to the parameter setting of S2 to handle owing to make, so, after buttonhole 80 both sides form zigzag needle tracking 85 (baste) relatively, can replenish the setting of carrying out parameter and handle, carry out the making of buttonhole stitch 70 so that replenish.

That is, handle in (S2) at each parameter setting, use operation board 4, it is 1 that the stitching baste number of times of numbering [45] is replenished change setting.Also can begin in setting range, to replenish change setting to the pre-set parameter of numbering [46]-[52] from initial value.At this moment, though can replenish change setting,, can the especially big pre-set parameter of buttonhole stitch 70 not changed, just as present embodiment because buttonhole 80 has formed to numbering [45]-[54] pre-set parameter in addition.

Secondly, after parameter setting is handled (S2), (S3 when parameter setting being finished by [ENTER] key 100, Yes), read in a plurality of pre-set parameters (S4) of numbering [45]-[52], then, in S5, according to sew up regulation that baste forms in a zigzag a plurality of parameters of needle tracking 85 shapes and size (be equivalent to the baste parameter, have a plurality of parameters and a part of regulation buttonhole stitch 70 shapes and the big or small a plurality of buttonhole stitch parameters that are numbered [45]-[52]) setting value, the stitch data of the zigzag needle tracking 85 of calculating Figure 18.According to the stitch data of the buttonhole stitch 70 of Figure 19, use the stitch data of aforementioned calculating, in S6, use the cutter activation point data of aforementioned calculating.

Here, stitch data for zigzag needle tracking 85, the stitch data that calculates is, begin to carry out the making of needle tracking 85 in a zigzag from the predetermined formation position of making near the preceding eyelet needle tracking 73 the starting point of buttonhole stitch 70, along buttonhole 80, turning back at the predetermined formation position of back eyelet needle tracking 74 back and forth forms needle tracking 85 in a zigzag, to aforementioned making till the starting point.

Here, as shown in figure 20, the needle gage of needle tracking 85 is to remove the predetermined fore-and-aft direction length that forms the position of buttonhole stitch with predetermined integer (being 8 in this example) to draw in a zigzag.

Therefore, the data creating of needle tracking 85 is in a zigzag: stitch is intersecting on the right-hand member of position by y to needle gage b (being (d+a+2I+e)/8 in this example) side by side predetermined the formation on the left end of position and predetermined formation of buttonhole stitch of buttonhole stitch.

The predetermined x coordinate that forms the position left end of buttonhole stitch is-f/2-c to be-f/2-k to be-f/2-j predetermined the formation among the 74a of position of back eyelet predetermined the formation among the 73a of position of preceding eyelet in the predetermined position 71a of formation of left saw-tooth stitch.The x coordinate of the predetermined formation of buttonhole stitch position right-hand member is f/2+c in the predetermined formation of right saw-tooth stitch position 72a, is f/2+k in the predetermined formation of back eyelet position 74a, is f/2+j in the predetermined formation of preceding eyelet position 73a.

Also can be the needle tracking data creating of zigzag needle tracking 85 that needle tracking forms in the predetermined nearly inboard, position that forms of buttonhole stitch in a zigzag.Like this, form needle tracking in a zigzag in the scope, just can conceal lid needle tracking in a zigzag with buttonhole stitch by making at buttonhole stitch.

Then, in case step into operating pedal 3 (S7, Yes), drive controlling cloth-feeding device 10 and apparatus for sewing 30 are making in the processing of S8, at first according to the stitch data that is stored in the zigzag needle tracking 85 among the RAM5c, near making starting point, buttonhole stitch 70 begins the making of needle tracking 85 in a zigzag, form needle trackings 85 in a zigzag along the reciprocal shapes of buttonhole 80, to aforementioned make starting point till, the zigzag needle tracking 85 of formation Figure 18.

After zigzag needle tracking 85 forms, in case step into operating pedal 3 (S7, Yes), according to the stitch data that is stored in the buttonhole stitch 70 among the RAM5c, that carries out drive controlling cloth-feeding device 10 and apparatus for sewing 30 makes processings (S8), as shown in figure 19, additionally carries out the making of buttonhole stitch 70.After the making that has replenished buttonhole stitch 70,,, the cutter 61 of buttonhole producing device 60 is carried out drive controlling according to cutter activation point data for the position of cross-section button in the needle tracking 85 is in a zigzag cut off.

Below, effect and the effect of sewing up baste described.

As mentioned above, in the formation of buttonhole stitch 70 way, use up under the situation such as bottom line, on processing cloth, form under the state of imperfect buttonhole stitch 70 when having made buttonhole by buttonhole producing device 60, by control device 5 control cloth-feeding device 10 and apparatus for sewing 30, behind X-shape zig zag needle tracking 85 on buttonhole 80 both sides, can replenish the making of carrying out buttonhole stitch 70.

And, even under the state that has formed imperfect buttonhole stitch 70 on the processing cloth, making buttonhole 80, replenishing on the processing cloth when carrying out the making of buttonhole stitch 70 (saw- tooth stitch 71,72 that particularly in buttonhole stitch 70, forms on buttonhole 80 both sides), owing to after zigzag needle tracking 85 forms, carry out, can prevent to process the projection of cloth, prevent to process the wrinkle that contracts that cloth causes because of the line tractive.Therefore, buttonhole 80 can not expanded on width yet and come, and finally can form buttonhole stitch attractive in appearance 70 simply exactly.

In addition, at processing cloth is that knitted fabric etc. rises under the situation that batt material constitutes, owing to can rely on zigzag needle tracking 85 to reduce to process the fuzzability of cloth fluffing portion, and in this part, buttonhole stitch 70 can not slip into processing cloth fluffing subordinate side, and the outward appearance of replenishing the buttonhole stitch 70 that carries out can be better.

Replenish carry out buttonhole stitch 70 after, by control device 5 control knob button hole producing devices 60, can drop on buttonhole stitch 70 inboards to cutter, the position of cross-section buttonhole 80 in the zigzag needle tracking 85 is cut off.And, can effectively utilize buttonhole producing device 60, the position of cross-section buttonhole 80 in the zigzag needle tracking 85 is accurately cut off, finally can determine buttonhole 80 exactly.

Control device 5 control cloth-feeding devices 10 and apparatus for sewing 30 are when forming zigzag needle tracking 85, owing to be to make from buttonhole stitch 70 that near the starting point eyelet needle tracking 73 is predetermined to form the positions beginning making of needle trackings 85 in a zigzag, along buttonhole 80, at the predetermined formation position of eyelet needle tracking 74 reciprocating and turning-back, form needle tracking 85 in a zigzag, to to aforementioned make starting point till, so can on the length direction of buttonhole 80, form the zigzag needle tracking 85 that intersects in the nearly gamut, and, after forming zigzag needle tracking 85, also can form buttonhole stitch 70 continuously.

Because use operation board 4 can be to a plurality of parameters (baste needle tracking parameter of regulation zigzag needle tracking 85 shapes and size; Be numbered [49]-parameter of [52]) set, and can apply flexibly aforementioned a plurality of buttonhole stitch parameters of regulation buttonhole stitch 70 shapes and size as aforementioned baste needle tracking parameter, therefore, owing to reduced setting number to the baste needle tracking parameter of new settings, operation can be set simply, shape and size can be easily set with respect to the zigzag needle tracking 85 of buttonhole stitch 70.

Below, the variation instance of sewing up baste is described.

1) in aforementioned lockstitch button holder M, can be by control device 5 control cloth-feeding device 10 and apparatus for sewing 30, before beginning to carry out the making of buttonhole stitch 70, form the zigzag needle tracking 85 that intersects in the both sides, predetermined formation position of zigzag needle tracking 85.

In this case, use operation board 4, at first the stitching baste number of times that is numbered [45] is set at 1, simultaneously, the parameter of regulation buttonhole stitch 70 and zigzag needle tracking 85 shapes and size is set, carry out the operation of stepping into pedal 3.

After buttonhole stitch 70 forms, control knob button hole producing device 60, the predetermined position that forms of the buttonhole that drops on buttonhole stitch 70 inboards under the cutter,, can form buttonhole 80 simultaneously along with the predetermined position that forms of cross-section buttonhole in the zigzag needle tracking 85 is cut off.

At this, the step that forms the zigzag needle tracking 85 that intersects on the both sides, predetermined formation position of buttonhole 80 was equivalent to for the 1st step, and the step that forms buttonhole stitch 70 on this zigzag needle tracking 85 was equivalent to for the 2nd step.

Therefore, owing to can strengthen by 85 pairs of processing of zigzag needle tracking cloth, so prevented the cloth phenomenons such as wrinkle that contract, can help forming buttonhole stitch attractive in appearance 70, under the situation that processing cloth is made of batt material such as knitted fabrics, because needle tracking 85 can reduce to process the fuzzability of cloth fluffing portion in a zigzag, so, in this part, buttonhole stitch 70 can not slip into processing cloth fluffing subordinate side, and the outward appearance of buttonhole stitch 70 is good.

2), when continuing to step into pedal 3, can behind the zigzag needle tracking 85 that the formation of the both sides of buttonhole 80 intersects, carry out the making of buttonhole stitch 70 continuously, or independently buttonhole stitch 70 and zigzag needle tracking 85 be selected to make according to above stated specification.

3) also can store in advance various buttonhole stitch stitch datas, zigzag needle tracking stitch data and various cutter activation point data, therefrom select to set desirable buttonhole stitch stitch data, zigzag needle tracking stitch data and various cutter activation point data, cloth-feeding device, apparatus for sewing, buttonhole producing device are carried out drive controlling.

4) can be not be defined as zigzag needle tracking 85 yet and intersect 2 of needle tracking needle trackings in a zigzag about making; needle tracking or 4 zigzag needle trackings etc. are suitable for various zigzag needle trackings in a zigzag but be decided to be at known 3; in this case; for using these multiple zigzag needle trackings, set desirable zigzag needle tracking by definite parameter.

Below, the reinforcement of carrying out carrying out before Figure 15 rectangle buttonhole stitch 70 is made construction drawing 22 is described with needle tracking 185,186 and the transition control situation with the zigzag baste of needle tracking 187,188.

In this case, handle at parameter setting (S2, Figure 14) in, in order to strengthen the baste with needle tracking 185,186, the zigzag baste number of times of numbering [46] is set at 1.And, the pre-set parameter of numbering [48]-[54] replenished in setting range carries out the setting of desired value.At this, in order not carry out other bastes, the stitching baste number of times that will be numbered [45] is set at 0 with the rectangle baste that is numbered [47].

Therefore, in S5, according to the rules buttonhole stitch 70 shapes and the size and a plurality of parameters, in the stitch data that calculates buttonhole stitch 70, according to a plurality of parameters of numbering [45]-[54] and the baste needle tracking parameter of forming by a part of buttonhole stitch parameter of regulation buttonhole stitch 70 shapes and size, reinforcement is calculated with needle tracking 185,186 and the transition stitch data with needle tracking 187,188.

At this, in S5, at first, as Figure 21, shown in Figure 22, calculate the stitch data that transition is in order made with needle tracking 185 with needle tracking 188, reinforcement with needle tracking 186, transition with needle tracking 187, reinforcement, then, as shown in figure 23, the stitch data that calculates is that in buttonhole stitch, the remainder of the part of eyelet needle tracking 73, left saw-tooth stitch 71, eyelet needle tracking 74, right saw-tooth stitch 72, eyelet needle tracking 73 is made in order.That is to say that a pair of reinforcement is the stitch data that calculates with needle tracking 185,186 and a pair of 187,188 stitch data, it is meant from beginning near the beginning to make a little of buttonhole stitch 70 to make to making the stitch data that end is made till the starting point.

At this, as shown in figure 24, transition is with the distance of 187,188 of needle trackings and to strengthen length with needle tracking 186,185 left and right directions be that width ratio in accordance with regulations among relative left and right sides sawtooth suture needle mark 71a, the 72a is determined.

And the fore-and-aft direction length of strengthening with needle tracking 186,185 is to obtain by the requirement ratio of eyelet length d before corresponding and the requirement ratio of back eyelet length e respectively.

Front and back are strengthened trying to achieve with the length of the middle left and right directions of needle tracking 186,185 except that the front and back reinforcement with predetermined integer 8 with the needle gage of needle tracking 186,185.

That is, arranged side by side in turn to extending the needle gage [49] that takes the needle by baste on the straight line with the data creating one-tenth of needle tracking 187 at y with needle tracking x coordinate :-f/2-c (ratio of regulation) transition.

Equally, also be made at y arranged side by side in turn with the data of needle tracking 188 to extending the needle gage [49] that takes the needle by baste on the straight line with needle tracking x coordinate: f/2+c (ratio of regulation) transition.

And, become reinforcement between needle tracking x coordinate :-f/2-c (ratio of regulation) and x coordinate: f/2+c (ratio of regulation) with predetermined position front ends (the y coordinate: d+a+2i) go up and rear end (y coordinate: d+a+2i+e (ratio of regulation)) gone up by the x of intersection to needle gage (as (2c (ratio of regulation)+f)/8) side by side that forms of needle tracking 186 strengthening data creating with needle tracking 186.

Equally, become reinforcement between needle tracking x coordinate: f/2-c (ratio of regulation) and x coordinate: f/2+c (ratio of regulation) with predetermined rear ends, position (the y coordinate: d) go up and front end (y coordinate: d-d (ratio of regulation)) is gone up by the x of intersection to needle gage (as (2c (ratio of regulation)+f)/8) side by side that forms of needle tracking 185 strengthening data creating with needle tracking 185.

At this, the ratio of afore mentioned rules is the predetermined number (as 0.8 etc.) less than 1.Therefore, zigzag baste needle tracking can form predetermined the formation in the position of keyhole seam.

In S8, shown in Figure 21,22,23, make continuously with the order of needle tracking 185, buttonhole stitch 70 (left saw-tooth stitch 71, eyelet needle tracking 74, right saw-tooth stitch 72, preceding eyelet needle tracking 73) with needle tracking 188, reinforcement with needle tracking 186, transition with needle tracking 187, reinforcement by transition.

In more detail, after S5, S6, (S7 Yes), carries out the processing of making of S8, and shown in Figure 21-22, forms zigzag baste 185-188 when stepping into operating pedal 3.Subsequently, (S7 Yes), makes processing (S8) once more, as shown in figure 23, forms buttonhole stitch 70 and forms buttonhole 80 (S11) when stepping into operating pedal 3.

Aforementioned effect and effect of carrying out the zigzag baste described.

Control device 5 control cloth-feeding device 10 and apparatus for sewing 30, on predetermined formation position 73a, the 74a of the eyelet needle tracking 73,74 of buttonhole stitch 70, eyelet needle tracking 73,74 is staggered to form strengthens, can strengthen with forming eyelet needle tracking 73,74 on the needle tracking 185,186 with behind the needle tracking 185,186.

And, because predetermined position 73a, the 74a of forming of the eyelet needle tracking of processing cloth strengthened with needle tracking 185,186 by reinforcement, strengthening with forming eyelet needle tracking 73,74 o'clock on the needle tracking 185,186, near the processing cloth the eyelet needle tracking 73,74 can not become the wrinkle that contracts because of the line tractive.So, can form the eyelet needle tracking 73,74 of buttonhole stitch 70 attractive in appearance simply exactly, and, can moderately be pulled to eyelet needle tracking 73,74, particularly form eyelet needle tracking 73,74 o'clock on the processing cloth that the little material of the material high with contracting property of gentry or thickness constitutes, effect also can be got well.

In addition, when using the processing cloth that constitutes by batt material such as knitted fabrics, because strengthen can reducing to process the fuzzability of cloth fluffing portion with needle tracking 185,186, the eyelet needle tracking 73,74 in this part can not slip into the fluffing subordinate side of processing cloth, the outward appearance of eyelet needle tracking 73,74 can be better.Since the eyelet needle tracking predetermined form to form on position 73a, the 74a strengthen with needle tracking 185,186, can strengthen with needle trackings 185,186 with eyelet needle tracking 73,74 latent being covered with, so, can not influence the good appearance of eyelet needle tracking 73,74.

Use operation board 4 can not only be to stipulating a pair of reinforcement needle tracking 185,186 and a pair of transition with needle tracking 187, a plurality of parameters (baste parameter of 188 shapes and size, be numbered [49]-parameter of [54]) set, and, owing to can apply flexibly aforementioned a plurality of buttonhole stitch parameters of regulation buttonhole stitch 70 shapes and size as aforementioned baste parameter, can reduce the setting number of new settings baste needle tracking parameter, can set operation simply, can be at an easy rate to a pair of reinforcement needle tracking 185 corresponding to buttonhole stitch 70,186 and a pair of transition with needle tracking 187,188 shape and size are set.

Only otherwise cut off line, just can form the reinforcement needle tracking 185,186 that to make on position 73a, the 74a respectively predetermined formation of a pair of eyelet needle tracking continuously, and form the transition needle tracking 187,188 that to make on position 71a, the 72a respectively predetermined formation of a pair of saw-tooth stitch continuously, simplified the making operation of a pair of reinforcement with needle tracking 185,186.And, because beginning finishes making starting point this reinforcement can be made starting point in the making of needle tracking 187,188 from buttonhole stitch with needle tracking 185,186 and transition near, is strengthening also continuously forming buttonhole stitch 70 with needle tracking after the continuous formation with needle tracking and transition.

Alternate embodiment to aforementioned zigzag baste describes.

1) can before eyelet needle tracking 73,74 formation of buttonhole stitch 70, not form a pair of transition, on predetermined formation position 73a, the 74a of eyelet needle tracking 73,74, only form and eyelet needle tracking 73,74 crossed reinforced needle tracking 185,186 with needle tracking 187,188.In this case, also can carry out discontinuous making to eyelet needle tracking 73,74.

2) in above stated specification, when continuing to step into pedal 3, after a pair of reinforcement of formation is used needle tracking 187,188 with needle tracking 185,186 and a pair of transition, the making of buttonhole stitch 70 be can carry out discontinuously, and a pair of reinforcement needle tracking 185,186 and a pair of the transition making of needle tracking 187,188 and the making of buttonhole stitch 70 carried out independently.

3) in above stated specification, though formation buttonhole stitches 70 after forming a pair of reinforcement to use needle tracking 187,188 with needle tracking 185,186 and a pair of transition, but after strengthening forming, can also strengthen going up at this and form continuous eyelet needle tracking 73 (or 74) with needle tracking 185 (perhaps 186) with needle tracking 185 (perhaps 186).

4) can store needle tracking is used in various buttonhole stitch stitch datas, reinforcement with needle tracking and transition stitch data and various cutter activation point data in advance, the buttonhole stitch stitch data of therefrom select to set wishing, strengthen, so that drive controlling cloth-feeding device, apparatus for sewing, buttonhole producing device with needle tracking and transition stitch data and various cutter activation point data with needle tracking.

5) other alternate embodiment of zigzag baste

Below, other alternate embodiment of zigzag baste is described.

In this alternate embodiment, before on the predetermined formation of eyelet needle tracking position 73a, 74a, forming eyelet needle tracking 73,74, increased and do not formed the pattern of strengthening with needle tracking 185,186, can also select to set on the predetermined position 73a of formation of eyelet needle tracking, 74a both sides, forming and strengthen forming second kind of pattern any that needle tracking 185 (or 186) is used in reinforcement as shown in figure 22 with first kind of pattern of needle tracking 185,186 and only going up as Figure 26 (or Figure 28) shown in the predetermined position 73a (or 74a) of formation of an eyelet needle tracking side.

When selecting aforementioned first kind of pattern, the same with aforementioned zigzag baste, as Figure 21, shown in Figure 22, control device 5 is being controlled cloth-feeding device 10 and apparatus for sewing 30, can on the predetermined formation of a pair of eyelet needle tracking position 73a, 74a, form the reinforcement needle tracking of being made 185,186 continuously respectively, form the transition needle tracking 187,188 that to make on position 71a, the 72a respectively predetermined formation of a pair of saw-tooth stitch.

When selecting aforementioned second kind of pattern, in the predetermined formation of a pair of eyelet needle tracking position 73a, 74a, can be set at only to be scheduled to form form on the 74a of position and strengthen, or only be scheduled to form form on the 73a of position and strengthen with needle tracking 185 (referring to Figure 28) at preceding eyelet needle tracking with needle tracking 186 (referring to Figure 26) at back eyelet needle tracking.

Strengthen with under the situation of needle tracking 186 selecting only on the predetermined position 74a of formation of back eyelet needle tracking, to form, as Figure 26, shown in Figure 27, control device 5 is being controlled cloth-feeding device 10 and apparatus for sewing 30, the transition that the reinforcement that the eyelet needle tracking predetermined position 74a of formation in back is gone up will make forms with needle tracking 186 with the form of the predetermined position 73a of formation of eyelet needle tracking before cross-section with needle tracking 110 and with at the predetermined position 71a of formation of a pair of saw-tooth stitch, 72a place respectively vertically a pair of transition of formation use needle tracking 187,188 to form continuously.

Only on the predetermined position 74a of formation of preceding eyelet needle tracking, form reinforcement in selection with under the situation of needle tracking 185, as shown in figure 28, control device 5 is being controlled cloth-feeding device 10 and apparatus for sewing 30, before making the predetermined position 73a of formation of eyelet needle tracking go up transition that the reinforcement that will make forms with needle tracking 185 with the form of the predetermined position 73a of formation of cross-section back eyelet needle tracking with needle tracking 111 and at the predetermined position 71a of formation of a pair of saw-tooth stitch, 72a place respectively vertically a pair of transition of formation use needle tracking 187,188 to form continuously.

Therefore, as shown in figure 25, as the parameter that is numbered [46], replace [the zigzag baste number of times] of aforementioned zigzag baste and [zigzag baste] parameter (be equivalent to strengthen use needle tracking parameter) is set, dependence is stored in the setting program among the ROM5b of control device 5, use operation board 4 to set this [zigzag baste] parameter, just can select a setting first, second pattern.In addition, a plurality of parameters with earlier figures 9-12 embodiment are identical basically to be numbered the parameter of [46].

For [zigzag baste] parameter, before making buttonhole stitch 70 on the processing cloth, do not strengthening being set at 0 under the situation of making of needle tracking, only (referring to Figure 26) is set at 1 under the situation of making reinforcement with needle tracking 186 on the eyelet side position, back, (referring to Figure 28) is set at 2 under the situation of making reinforcement with needle tracking 185 on the preceding eyelet side position, and (referring to Figure 22) is set at 3 under making on the eyelet side position, front and back is strengthened with the situation of needle tracking 185,186.

After to a plurality of parameter settings with [zigzag baste] parameter, dependence is stored in the computing program among the ROM5b of control device 5, according to aforementioned a plurality of buttonhole stitch parameters, calculate the stitch data of buttonhole stitch buttonhole stitch 70, simultaneously, be [zigzag baste] parameter setting under the situation of 1-3, and be set under the situation of first or second pattern, according to aforementioned a plurality of baste needle tracking parameters, calculating has the baste stitch data of strengthening with needle tracking.

Controlling cloth-feeding device 10 and apparatus for sewing 30 by control device 5 according to these stitch datas, for example, be under 1 the situation at [zigzag baste] parameter setting, as shown in figure 26, the order of making continuously is: transition needle tracking 187, reinforcement needle tracking 186, transition needle tracking 188, reinforcement needle tracking 110, then, as shown in figure 27, the order of making continuously of carrying out buttonhole stitch 70 is: left saw-tooth stitch 71, back eyelet needle tracking 74, right sawtooth suture needle mark 72, the preceding suture needle mark 73 that locks.

Like this, on the predetermined formation of preceding eyelet needle tracking position 73a, buttonhole stitch 70 make when beginning and sewing finishing the time carry out eyelet, strengthen with needle tracking 185 and make needle tracking number (the pin number falls) change many owing to increase to have formed behind this eyelet needle tracking, so, before formation, neither can produce pin subsequently during eyelet needle tracking 73 and be displaced sideways (pin is in the phenomenon of interfering on the needle tracking on the crooked needle downing position that can not drop on regulation down) or bent needle phenomenon, also can not make the degraded appearance of eyelet needle tracking 73.

Alternate embodiment according to this lockstitch button holder, is [zigzag baste] parameter setting 1 (second kind of pattern), can only on the predetermined position 74a of formation of the back eyelet needle tracking that does not have eyelet, form and strengthen with needle tracking 186, like this, reduced the needle tracking number of on the predetermined position 73a of formation of preceding eyelet needle tracking, being made, before formation, can prevent that pin is displaced sideways or bent needle during eyelet needle tracking 73, and, be aesthetically formed preceding eyelet needle tracking 73, can form the buttonhole stitch 70 of overall appearance.

Under the situation that is set at second kind of mould parameter, do not cut off line, can can strengthen using the making operation of needle tracking 185 (or 186) simply to using needle tracking 187,188 to form continuously with needle tracking 110 (or reinforcement), the reinforcement that on the predetermined position 74a of formation of back eyelet needle tracking, will make with needle tracking 186 (or transition with needle tracking 111) and in a pair of transition that a pair of saw-tooth stitch is scheduled to will to make respectively on formation position 71a, the 72a with needle tracking 185 in the transition that will make on the predetermined position 73a of formation of preceding eyelet needle tracking.

In addition, since strengthen with needle tracking 185 (or 186) and transition with needle tracking 110 (or 111), 187,188 making in, can make the starting point end near the making the starting point of buttonhole stitch 70, so, also can form buttonhole stitch 70 continuously behind the baste.Under the situation that is set at first kind of pattern, have the effect identical with previous embodiment.

At this moment, as shown in figure 29, rectangle, radiation, circle, flowing water shape, linear are arranged as preceding eyelet needle tracking kind; As shown in figure 30, as back eyelet needle tracking kind rectangle, radiation, circle, circle eye shape are arranged.For the buttonhole stitch 70 of aforementioned Any shape, except (a)-(c) buttonhole stitch of Figure 13, can form polytype by the preceding eyelet needle tracking of Figure 29 and the back eyelet needle tracking combination of Figure 30.Buttonhole stitch can be the rectangle of front and back eyelet needle tracking for Figure 13 (a), the circle of the radiation of Figure 13 (b) and Figure 13 (c).

At the shape of eyelet needle tracking, can form or not form reinforcement needle tracking 185,186 correspondingly.Particularly for radiation and circle eye shape in the radiation in the eyelet needle tracking polytype before shown in Figure 29 and linear and the back shown in Figure 30 eyelet needle tracking polytype, because it is to form in the length direction of buttonhole stitch 70 that its needle tracking has a part at least, so, do not strengthen with needle tracking 185,186 even do not form, also has the effect of grade of stretching on the length direction of inhibition, form the reinforcement needle tracking 185,186 that increases, can not make the outward appearance of eyelet needle tracking bad.

According to this alternate embodiment, corresponding to the shape of preceding eyelet needle tracking and the shape of back eyelet needle tracking etc., can be set at aptly not form and strengthen with needle tracking 185,186, or formation is strengthened with needle tracking 186 in the eyelet of back, or form reinforcement needle tracking 185 in preceding eyelet, or formation is strengthened with needle tracking 185,186 in the eyelet of front and back.

In addition, control device 5 is corresponding to the preceding eyelet needle tracking shape of Figure 29 and the back eyelet needle tracking shape of Figure 30, can automatically be set at not form and strengthen with needle tracking 185,186, or formation is strengthened with needle tracking 186 in the eyelet of back, or form reinforcement needle tracking 185 in preceding eyelet, or formation is strengthened with needle tracking 185,186 in the eyelet of front and back.

In this case, as previously mentioned, when preceding eyelet needle tracking is radiation and linear, can automatically be set on the predetermined position 73a of formation of preceding eyelet needle tracking, not form and strengthen with needle tracking 185, and when back eyelet needle tracking is radiation and circle eye shape, can automatically be set on the predetermined position 74a of formation of back eyelet needle tracking, not form and strengthens with needle tracking 186.

In addition, in this case, strengthening the setting item (as being set at 4) that automatic setting is used being set in parameter (being numbered the zigzag baste of [46]) with needle tracking, only be provided with under the situation of this setting item, also can automatically be set at whether form the reinforcement needle tracking corresponding to preceding eyelet needle tracking shape and back eyelet needle tracking shape.Perhaps, can being set at of this parameter do not carried out being provided with automatically yet.That is to say, because the zigzag baste parameter that is numbered [46] is set, even set predetermined formation of eyelet needle tracking and formed the reinforcement needle tracking on the position, the setting of this eyelet needle tracking shape (radial etc.) also is invalid, can automatically switch to the form of not carrying out strengthening with needle tracking on the position predetermined formation of eyelet needle tracking.

In addition, also can be present embodiment 5) be used for above-mentioned zigzag baste alternate embodiment 1)-4).

Secondly, the control situation that illustrates is, in the making of buttonhole stitch 70, carry out before these buttonhole stitch 70 making, shown in Figure 31 c, formation has 2 groups 3 (totally 6) linearities and strengthens with needle tracking 285a-285c, 287a-287c and 2 groups 3 (totally 6) transition needle tracking 286a-286c, the rectangle baste of 288a-288c.

In this case, handle at parameter setting (S2, Figure 14) in, in order to strengthen with needle tracking 285a-285c, 287a-287c and transition needle tracking 286a-286c, the baste of 288a-288c is set at 3 to the rectangle baste number of times that is numbered [47].And,, also can in setting range, replenish the value that is set at hope for the pre-set parameter that is numbered [48]-[52].At this,, stitching baste number of times that is numbered [45] and the zigzag baste number of times that is numbered [46] are set at 0 in order not carry out other baste.

And, in S5, the buttonhole stitch parameter of buttonhole stitch size and shape according to the rules, calculate the stitch data of buttonhole stitch 70, simultaneously, according to the baste parameter that a plurality of parameters that are numbered [47]-[52] and the part of a plurality of buttonhole stitch parameters of stipulating buttonhole stitch 70 sizes and shape are formed, calculate reinforcement needle tracking 285a-285c, 287a-287c and transition needle tracking 286a-286c, the stitch data of 288a-288c, and read in and be stored among the RAM5c.

At this, in S5, the stitch data that calculates is: at first, at the predetermined position 71a that forms of saw-tooth stitch, the width of 72a central authorities and at the predetermined position 73a that forms of eyelet needle tracking, the length direction centre of 74a, make in turn and strengthen using needle tracking 285a, transition needle tracking 286a, strengthen using needle tracking 287a, transition with needle tracking 288a (referring to Figure 31 a), secondly, at the predetermined position 71a that forms of saw-tooth stitch, the predetermined position 73a that forms of 72a and eyelet needle tracking, buttonhole among the 74a is predetermined to be formed near the position (for example being scheduled to form the position of position 0.5mm apart from buttonhole), make in turn and strengthen using needle tracking 285b, transition needle tracking 286b, strengthen using needle tracking 287b, transition needle tracking 288b (referring to Figure 31 b), at last, at the predetermined position 71a that forms of saw-tooth stitch, the predetermined position 73a that forms of 72a and eyelet needle tracking, form near the relative position, position (for example apart from aforementioned relative position 0.5mm position) among the 74a with buttonhole is predetermined, make in turn and strengthen using needle tracking 285c, transition needle tracking 286c, strengthen using needle tracking 287c, transition needle tracking 288c (referring to Figure 31 c).

At this, the stitch data of calculating is, from strengthen with the buttonhole stitch 70 of the preceding eyelet of needle tracking 285a make starting point near begin to make, make starting point end transition needle tracking 288c at buttonhole stitch 70.

And, calculate constantly and strengthen with needle tracking 285a-285c, 287a-287c and transition needle tracking 286a-286c, the stitch data of 288a-288c is so that the stitch data that calculates can be made a part, left saw-tooth stitch 71, eyelet needle tracking 74, the right saw-tooth stitch 72 of eyelet needle tracking 73 in the buttonhole stitch 70, the remainder (referring to Figure 31 d) of eyelet needle tracking 73 successively.

Furthermore, shown in figure 32, above-mentioned rectangle needle tracking data creating intersects to extending to form on the straight line with x to extending on the straight line with needle tracking y in transition for making pinprick.At this, according to rectangle baste number of times and baste needle tracking parameter and buttonhole stitch parameter try to achieve y to the x coordinate position that extends straight line and x to the y coordinate position that extends straight line.

Promptly, for example, for rectangle baste number of times is 3, in 4 straight line 285a, 286a making the 1st circle, 287a, 288a, left side y (f/2-c/2) goes up extension to straight line 285a at the x coordinate, right side y goes up at x coordinate (f/2+c/2) to straight line 287a and extends, and rear side x goes up at y coordinate (d+a+2i+e/2) to straight line 286a and extends, and front side x goes up at y (d/2) to straight line 288a and extends.

In 4 straight line 285b, 286b making the 2nd circle, 287b, 288b, left side y (f/2-c/4) goes up extension to straight line 285b at the x coordinate, right side y goes up at x coordinate (f/2+c/4) to straight line 287b and extends, rear side x goes up at y coordinate (d+a+2i+e/4) to straight line 286b and extends, and front side x goes up at y (3d/4) to straight line 288b and extends.

In 4 straight line 285c, 286c making the 3rd circle, 287c, 288c, left side y (f/2-3c/4) goes up extension to straight line 285c at the x coordinate, right side y goes up at x coordinate (f/2+3c/4) to straight line 287c and extends, rear side x goes up at y coordinate (d+a+2i+3e/4) to straight line 286c and extends, and front side x goes up at y (d/4) to straight line 288c and extends.

It is arranged side by side successively that the needle tracking data that form make pinprick remove needle gage [49] with baste in each straight line.

And, in S8, move 3 linearities that form and strengthen with needle tracking 285a-285c, 287a-287c and predetermined 3 the transition needle tracking 286a-286c that form respectively on position eyelet needle tracking 73a, the 74a that form of a pair of eyelet needle tracking on each saw- tooth stitch 71,72 widths at the predetermined position 71a of formation of a pair of saw-tooth stitch, 72a place, 288a-288c is that near-ring shape 3 circles are integrally formed continuously.

Like this, shown in Figure 31 (a)-(c), on the predetermined formation of each saw- tooth stitch position 71a, 72a, 3 linearities are strengthened uniformly-spaced forming on saw- tooth stitch 71,72 widths with needle tracking 285a-285c, 287a-287c; On the predetermined formation of each eyelet needle tracking position 73a, 74a, 3 transition needle tracking 286a-286c, 288a-288c uniformly-spaced form on eyelet needle tracking 73,74 length directions.

Furthermore, after S5, S6, (S7 Yes), carries out the processing of making of S8, and shown in Figure 31 (a)-(c), forms rectangle baste 285-288 when stepping into operating pedal 3.Subsequently, (S7 Yes), makes processing (S8) once more, shown in Figure 31 d, forms buttonhole stitch 70 and forms buttonhole 80 (S11) when stepping into operating pedal 3.

Effect and effect to aforementioned rectangle baste describe.

By control device 5 control cloth-feeding device 10 and apparatus for sewing 30, in the making of buttonhole stitch 70, before forming this buttonhole stitch 70, can strengthen with needle tracking 285a-285c, 287a-287c and predetermined many transition needle tracking 286a-286c that forms respectively on position 73a, the 74a that forms of a pair of eyelet needle tracking moving many linearities that form on each saw- tooth stitch 71,72 widths at the predetermined position 71a of formation of a pair of saw-tooth stitch, 72a place, 288a-288c near-ring shape multi-turn is integrally formed continuously, and does not form remaining needle tracking.

At predetermined position 71a, the 72a place of forming of each saw-tooth stitch, owing to form many reinforcements needle tracking 285a-285c, 287a-287c to move on saw- tooth stitch 71,72 widths, can strengthen predetermined position 71a, the 72a of forming of saw-tooth stitch on a large scale, after this reinforcement, form saw- tooth stitch 71,72 o'clock on position 71a, the 72a predetermined formation of saw-tooth stitch, near the saw- tooth stitch 71,72 processing cloth can not go between tractive and become the wrinkle that contracts, and can form saw-tooth stitch attractive in appearance 71,72.In addition, rely on predetermined many reinforcements needle tracking 285a-285c, the 287a-287c that uniformly-spaced forms on position 71a, the 72a that form of saw-tooth stitch, can strengthen predetermined position 71a, the 72a of forming of saw-tooth stitch on a large scale closely equably, form sawtooth needle tracking 70 attractive in appearance effectively.

Particularly owing to formed each many transition needle tracking 286a-286c predetermined the formation on position 73a, the 74a of a pair of eyelet needle tracking, 288a-288c, so, many reinforcements needle tracking 285a-285c, the 287a-287c that will make respectively at the predetermined position 71a of formation of a pair of saw-tooth stitch, 72a place, with many transition needle tracking 286a-286c that on the predetermined formation of a pair of eyelet needle tracking position 73a, 74a, will make respectively, 288a-288c can form simultaneously continuously, just because of this to make action be continuously smooth and easy carrying out, because of drawing, can alleviate the load of lockstitch button holder.

That is to say, in traditional approach shown in Figure 1 since seize on both sides by the arms determine the buttonhole position about to strengthen with needle tracking 301 be not to form continuously, so, thisly make that to move be discontinuous can not smooth and easyly carrying out.And, make the startup of action repeatedly and stop to make the load of Sewing machines to become big.In contrast to this, in the present embodiment, can make action continuously, alleviate the load of Sewing machines.

In addition, because of can be with many transition needle tracking 286a-286c, 288a-288c strengthens predetermined position 73a, the 74a of forming of eyelet needle tracking, so, after this reinforcement, form eyelet needle tracking 73,74 o'clock on position 73a, the 74a predetermined formation of eyelet needle tracking, near the processing cloth the eyelet needle tracking 73,74 can not form eyelet needle tracking attractive in appearance 73,74 because of the line tractive becomes the wrinkle that contracts.In addition, owing in the needle tracking that the predetermined position 73a of formation of a pair of eyelet needle tracking, 74a place ring-type form, formed each many transition needle trackings will making, can strengthen predetermined position 73a, the 74a of forming of eyelet needle tracking on a large scale, form saw-tooth stitch attractive in appearance 70 effectively.

Operating operation dish 4, set aforementioned a plurality of baste needle tracking parameter, just can form shape and size reinforcement needle tracking 285a-285c, 287a-287c and transition needle tracking 286a-286c corresponding to the saw- tooth stitch 71,72 of buttonhole stitch 70,288a-288c sets the buttonhole stitch 70 that aforementioned a plurality of buttonhole stitch parameter just can be made desired shape and size.Owing to being applied flexibly, the part of aforementioned a plurality of buttonhole stitch parameters makes aforementioned baste parameter, so reduced the setting number of new settings baste needle tracking parameter, can set operation simply, can easily set with shape and the size of needle tracking 285a-285c, 287a-287c reinforcement corresponding to saw- tooth stitch 71,72.

In addition, can conceal many reinforcements of lid needle tracking 285a-285c, 287a-287c and many transition needle tracking 286a-286c, 288a-288c respectively with a pair of saw- tooth stitch 71,72 and a pair of eyelet needle tracking 73,74.When using the processing cloth that constitutes by easy materials that fluffs such as knitted fabrics, owing to rely on many reinforcements needle tracking 285a-285c, 287a-287c and many transition needle tracking 286a-286c, 288a-288c can reduce to process the fuzzability of cloth fluffing portion, so, eyelet needle tracking 73,74 can not slip into the downside of processing cloth fluffing portion, makes the outward appearance of eyelet needle tracking 73,74 better.

Below, the alternate embodiment of rectangle baste is described.

1) as shown in figure 33, in buttonhole stitch 70 is made, before this buttonhole stitch 70 forms, for example, use among the needle tracking 289a-289c in predetermined 3 transition that form the formation of 74a place, position of eyelet needle tracking, can intersect to form needle tracking to 1 transition with needle tracking 289a and eyelet needle tracking, and 2 remaining transition be formed the needle tracking of door shape with needle tracking 289b, 289c with saw-tooth stitch.In this case, can strengthen the predetermined position 74a of formation of eyelet needle tracking more exactly, form saw-tooth stitch attractive in appearance 70 effectively.

Can also in many transition needle trackings, form needle tracking with saw-tooth stitch.In addition, also can with in the needle tracking, intersect to form needle tracking to 1 transition with needle tracking 289a and eyelet needle tracking in predetermined 3 transition that form the formation of 74a place, position of eyelet needle tracking at least not as shown in the figure with saw-tooth stitch.

2) in buttonhole stitch 70 is made, before this buttonhole stitch 70 forms, 2 of will make on the predetermined position 71a of formation of a pair of saw-tooth stitch, each saw- tooth stitch 71,72 widths of 72a place or 4 above linearities are strengthened forming 2 or 4 above transition needle tracking 286a-286c, 288a-288c that 73,74 places, position will make respectively with needle tracking 285a-285c, 287a-287c with in that a pair of eyelet needle tracking is predetermined, can near-ring shape multi-turn form continuously.

3) for a plurality of reinforcements needle tracking that forms at the predetermined position 71a of formation of each saw-tooth stitch, 72a place, form just so long as on the width of saw- tooth stitch 71,72, move, and not necessarily on the width of saw- tooth stitch 71,72, uniformly-spaced form.

4) in the formation order of many reinforcements with needle tracking 285a-285c, 287a-287c and many transition needle tracking 286a-286c, 288a-288c, needn't be defined as shown in above-mentioned Figure 31 (a)-(c) like that, can be integrally formed continuously many reinforcements of multiple order near-ring shape multi-turn with needle tracking 285a-285c, 287a-287c and many transition with needle tracking 286a-286c, 288a-288c.

5) also can form many transition needle tracking 286a-286c, 288a-288c at the predetermined position 73a of formation of various eyelet needle trackings, 74a place not move the state that intersects.

6) in above stated specification, when stepping into pedal 3 continuously, not form to strengthen carrying out buttonhole stitch 70 making after with needle tracking 286a-286c, 288a-288c continuously, but reinforcement is made with needle tracking 286a-286c, 288a-288c with needle tracking 285a-285c, 287a-287c and transition and making individually of buttonhole stitch 70 carried out with needle tracking 285a-285c, 287a-287c and transition.

7) storage in advance has various buttonhole stitch stitch datas, reinforcement needle tracking 285a-285c, 287a-287c and transition needle tracking 286a-286c, 288a-288c stitch data, all cutter activation point data, the buttonhole stitch 70 of hope be can therefrom select to set and needle tracking 285a-285c, 287a-287c strengthened using and transition needle tracking 286a-286c, 288a-288c stitch data and cutter activation point data, drive controlling cloth-feeding device, apparatus for sewing, buttonhole producing device.

8) in the above description, can also can enclose difference formation discontinuously to this 1-3 to second enclosing and the 3rd enclose integrally formedly continuously with needle tracking 285c, 287c and transition with what needle tracking 286c, 288c formed with what needle tracking 286b, 288b formed with needle tracking 285b, 287b and transition by reinforcement by the first lap of strengthening forming with needle tracking 286a, 288a with by strengthening with needle tracking 285a, 287a and transition.But use needle tracking 285,287 and transition with needle tracking 286,288 concerning the reinforcement that forms each circle, form continuously.

In addition, want in the point range not breaking away from the present invention, also the morphological transformation that can add previous embodiment and alternate embodiment.

For example, the present invention is not limited to lockstitch button holder, can be applicable to wide scope have cloth-feeding device, on the Sewing machines of apparatus for sewing and control device.

For cloth-feeding device, can be to directions X (fore-and-aft direction) work feed, also can be to Y direction (left and right directions) work feed different with directions X.

Whether the needle tracking formation method of the embodiment of the invention with has nothing to do in the inboard buttonhole that forms of buttonhole stitch, can be widely applicable for by control device control cloth-feeding device and apparatus for sewing to form in the method for buttonhole stitch.And,, also can use the present invention even do not have the buttonhole producing device that is used on processing cloth, forming the band cutter of buttonhole on the Sewing machines.

Claims (23)

1. lockstitch button holder, comprise cloth-feeding device, apparatus for sewing, buttonhole producing device and control device, cloth-feeding device is used for carrying processing cloth, apparatus for sewing is used for forming needle tracking on processing cloth, the buttonhole producing device has cutter and form buttonhole on processing cloth, control device is in control cloth-feeding device and apparatus for sewing formation buttonhole stitch, control knob button hole producing device is at the inboard keyhole that forms of buttonhole stitch, it is characterized in that: aforementioned control device control cloth-feeding device and apparatus for sewing, when under the imperfect buttonhole stitch state that forms, having formed buttonhole by the buttonhole producing device, after in the scope of position, buttonhole both sides, forming the zigzag needle tracking, replenish and carry out the making of buttonhole stitch.

2. lockstitch button holder according to claim 1, it is characterized in that: aforementioned control device control cloth-feeding device and apparatus for sewing, so that when forming aforementioned zigzag needle tracking from beginning to form needle tracking in a zigzag near buttonhole stitch is made starting point, form reciprocal shape needle tracking in a zigzag along buttonhole, the extremely aforementioned starting point of making finishes.

3. lockstitch button holder according to claim 2 is characterized in that: aforementioned control device control knob button hole producing device, carry out buttonhole stitch and make the back position of cross-section buttonhole in the needle tracking is in a zigzag cut off replenishing.

4. the lockstitch button holder described according to one of claim 1-3 is characterized in that: be provided with baste needle tracking parameter setting apparatus at aforementioned control device, so that a plurality of baste needle tracking parameters of having stipulated aforementioned zigzag needle tracking shape and size are set.

5. lockstitch button holder according to claim 4, it is characterized in that: be provided with the buttonhole stitch parameter setting apparatus at aforementioned control device, so that a plurality of buttonhole stitch parameters of having stipulated aforementioned buttonhole stitch shape and size are set, this buttonhole stitch parameter of a part is applied flexibly and made aforementioned baste needle tracking parameter.

6. lockstitch button holder, comprise cloth-feeding device, apparatus for sewing, buttonhole producing device and control device, cloth-feeding device is used for carrying processing cloth, apparatus for sewing is used for forming needle tracking on processing cloth, the buttonhole producing device has cutter, and be used on processing cloth, forming buttonhole, control device is in control cloth-feeding device and apparatus for sewing formation buttonhole stitch, controlling the keyhole producing device and forming buttonhole in the inboard of buttonhole stitch, it is characterized in that: aforementioned control device control cloth-feeding device and apparatus for sewing, beginning to carry out before buttonhole stitch makes, in the predetermined both sides scope that forms the position of buttonhole, forming needle tracking in a zigzag.

7. method that forms buttonhole stitch, comprise that control cloth-feeding device and apparatus for sewing form buttonhole stitch, this cloth-feeding device is used for carrying processing cloth, this apparatus for sewing is used for forming needle tracking on processing cloth, it is characterized in that: the first step forms needle tracking in a zigzag in the both sides scope at the predetermined formation of buttonhole position, second step formed buttonhole stitch on this zigzag needle tracking.

8. lockstitch button holder, comprise cloth-feeding device, apparatus for sewing and control device, cloth-feeding device is used for carrying processing cloth, apparatus for sewing is used for forming needle tracking on processing cloth, cloth-feeding device controlled by control device and apparatus for sewing forms the buttonhole stitch with a pair of saw-tooth stitch and a pair of eyelet needle tracking, it is characterized in that: aforementioned control device is being controlled cloth-feeding device and apparatus for sewing, before the eyelet needle tracking that forms buttonhole stitch, form the reinforcement needle tracking that intersects with the eyelet needle tracking on one side at least predetermined the formation in the position of this eyelet needle tracking.

9. lockstitch button holder according to claim 8, it is characterized in that: can be set at the first kind of pattern that forms on the both sides that be chosen in predetermined formation of a pair of eyelet needle tracking when the aforementioned reinforcement of formation is with needle tracking in the position, or select second a kind of pattern that on one side, forms.

10. lockstitch button holder according to claim 9, it is characterized in that: when selecting aforementioned first kind of pattern, cloth-feeding device controlled by control device and apparatus for sewing forms a pair of reinforcement needle tracking and a pair of transition needle tracking continuously, this reinforcement needle tracking forms respectively predetermined the formation on the position of a pair of eyelet needle tracking, and this transition needle tracking vertically forms respectively predetermined the formation on the position of a pair of saw-tooth stitch.

11. lockstitch button holder according to claim 9, it is characterized in that: when selecting aforementioned second kind of pattern, control device is being controlled cloth-feeding device and apparatus for sewing, one side eyelet needle tracking predetermined form the reinforcement that forms on the position with needle tracking and another side eyelet needle tracking predetermined form the transition that forms on the position with needle tracking and at the predetermined formation of a pair of saw-tooth stitch position respectively vertically a pair of transition of formation make continuously of needle tracking.

12. lockstitch button holder according to claim 9 is characterized in that: aforementioned control device is provided with reinforcement needle tracking parameter setting apparatus, strengthens the needle tracking parameter so that when aforementioned first, second pattern is selected to set, set.

13. described lockstitch button holder one of according to Claim 8-12 is characterized in that: aforementioned control device is provided with baste needle tracking parameter setting apparatus, so that to stipulating that aforementioned reinforcement sets with a plurality of baste needle tracking parameters of needle tracking shape and size.

14. lockstitch button holder according to claim 13, it is characterized in that: aforementioned control device is provided with the buttonhole stitch parameter setting apparatus, so that a plurality of buttonhole stitch parameters of aforementioned buttonhole stitch shape of regulation and size are set, and applying flexibly of this buttonhole stitch parameter of a part made aforementioned baste needle tracking parameter.

15. method that forms buttonhole stitch, comprise that control cloth-feeding device and apparatus for sewing form buttonhole stitch, this cloth-feeding device is used for carrying processing cloth, this apparatus for sewing is used for forming needle tracking on processing cloth, it is characterized in that: before the eyelet needle tracking of aforementioned buttonhole stitch forms, make and eyelet needle tracking crossed reinforced needle tracking predetermined the formation on the position of this eyelet needle tracking.

16. the method for formation buttonhole stitch according to claim 15 is characterized in that: after the aforementioned reinforcement of formation is with needle tracking, form buttonhole stitch.

17. the method for formation buttonhole stitch according to claim 15 is characterized in that: form aforementioned reinforcement with needle tracking after, form the eyelet needle tracking in this reinforcement continuously on needle tracking.

18. the method according to the described formation buttonhole stitch of one of claim 15-17 is characterized in that: in the predetermined formation of a pair of eyelet needle tracking position of aforementioned buttonhole stitch, only there be not predetermined formation of back eyelet needle tracking of eyelet to form the reinforcement needle tracking on the position.

19. lockstitch button holder, comprise cloth-feeding device, apparatus for sewing and control device, cloth-feeding device is used for carrying processing cloth, apparatus for sewing is used for forming needle tracking on processing cloth, control device control cloth-feeding device and apparatus for sewing have the buttonhole stitch of a pair of saw-tooth stitch and a pair of eyelet needle tracking with formation, it is characterized in that: aforementioned control device control cloth-feeding device and apparatus for sewing, when the making of buttonhole stitch, before forming this buttonhole stitch, a pair of saw-tooth stitch predetermined form move on each saw-tooth stitch width in the position many linearities that form strengthen with in needle tracking and the predetermined formation of a pair of eyelet needle tracking position respectively many transition of formation with needle tracking roughly the ring-type multi-turn form continuously.

20. lockstitch button holder according to claim 19 is characterized in that: aforementioned many reinforcements are integrally formed with needle tracking with needle tracking and many transition.

21. according to claim 19 or 20 described lockstitch button holders, it is characterized in that: at predetermined many reinforcement needle trackings that form in the position that form of various saw-tooth stitches is uniformly-spaced formation in the width at saw-tooth stitch.

22. the lockstitch button holder described according to claim 19-21, it is characterized in that: aforementioned control device is provided with baste needle tracking parameter setting apparatus and buttonhole stitch parameter setting apparatus, and can apply flexibly the suture needle mark parameter of playing tricks to the part of a plurality of buttonhole stitch parameters, wherein, baste needle tracking parameter setting apparatus is set with a plurality of baste needle tracking parameters of needle tracking shape and size stipulating aforementioned reinforcement, and the buttonhole stitch parameter setting apparatus is set a plurality of buttonhole stitch parameters of regulation buttonhole stitch shape and size.

23. method that forms buttonhole stitch, comprise that control cloth-feeding device and apparatus for sewing form buttonhole stitch, cloth-feeding device is used for carrying processing cloth, apparatus for sewing is used for forming needle tracking on processing cloth, it is characterized in that: when buttonhole stitch is made, before forming this buttonhole stitch, roughly the ring-type multi-turn forms many linearities continuously and strengthens using needle tracking and many transition needle trackings, this reinforcement needle tracking is to move to form on predetermined each saw-tooth stitch width that forms in the position of a pair of saw-tooth stitch, and this transition needle tracking forms respectively predetermined the formation in the position of a pair of eyelet needle tracking.

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