CN1412370A - Stitch forming method and device - Google Patents
Stitch forming method and device Download PDFInfo
- Publication number
- CN1412370A CN1412370A CN02145767A CN02145767A CN1412370A CN 1412370 A CN1412370 A CN 1412370A CN 02145767 A CN02145767 A CN 02145767A CN 02145767 A CN02145767 A CN 02145767A CN 1412370 A CN1412370 A CN 1412370A
- Authority
- CN
- China
- Prior art keywords
- cloth
- stitch
- pin
- sewing
- work feed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B1/00—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both
- D05B1/08—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both for making multi-thread seams
- D05B1/12—Lock-stitch seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/58—Seat coverings
- B60N2/5816—Seat coverings attachments thereof
- B60N2/5883—Seat coverings attachments thereof by sewing, stitching or threading
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B23/00—Sewing apparatus or machines not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention provides a method and device for forming stitches of a sewing machine. According to an object of the invention, in thick skin of a vehicular sheet or furniture, when top sides of two sheets of sewing materials are aligned, ends thereof are sewn together and thereafter, the sewing materials are split to open by putting a sewing portion thereof on an inner side, the sewing materials are sewn together such that stitch thread does not appear at the top sides of the sewing materials. A stitch is continuously formed in cloth by repeating operation of forming a plurality of stitches by feeding the cloth in one direction by (n+1) stitches to a sewing machine for forming lock stitch by a cloth feed apparatus and thereafter feeding the cloth by n stitches in a direction reverse to the one direction by the same feed amount.
Description
Technical field
The stitch that the present invention relates to Sewing machines forms method and apparatus, particularly in the making of the thick thing of leather of automobile chair, furniture etc., for after 2 being made material surface is involutory and carrying out the stitching of end, launch making material, this suturing part is placed the inboard and the stitch of making material that uses forms method and apparatus.
Background technology
In the past, using Sewing machines to carry out under the above-mentioned situation of making, example as shown in Figure 7, at first last cloth W1 and play cloth W2 surface be involutory overlapping, interoperation by pin and rotating shuttle then forms the flush joint stitch that is made of upper thread NS and bottom line US as shown in Figure 8 up and down on the side end of cloth and realizes stitching to this side end at this.Then, as shown in Figure 9, this stitching end is placed the inboard, on use under the cloth W1, state that down cloth W2 launches.
But, suturing part among Fig. 7, Fig. 8 link intensity of force depend on the frictional force of stretching the knotting point that draws intensity, upper thread NS and bottom line US separately of upper thread NS and bottom line US and be through cloth W1, time cloth W2 surface and the upper thread NS between the back side and bottom line US and last cloth W1, play the frictional force that is taken place between the cloth W2.Therefore, linking intensity of force at suturing part all is the intensity that depends on single line.
In addition, when launching suturing part, can take place upper thread NS and bottom line US extension, upper thread NS and bottom line US knotting point distortion, upper thread NS and bottom line US and last cloth W1, play on the contact portion of cloth W2 on the compression of cloth W1, time cloth W2.
Therefore, when launching suturing part, the contact-making surface of the suturing part of last cloth W1, following cloth W2 forms open configuration, as shown in Figure 9, make upper thread NS, bottom line US or both knottings point expose on the surface of last cloth W1, following cloth W2, thereby cause the decline of commodity value.
In addition,, can consider overstriking upper thread NS and bottom line US, and strengthen the tension force of upper thread NS and bottom line US in order to strengthen the binding strength of upper thread NS and bottom line US.
But, in sewing machine for covering chain stitch, though be by balance upper thread NS and bottom line US tension force, in the central portion of last cloth and following cloth, form knotting portion, but owing to constitute by the spring thin plate to being arranged on the mechanism that bottom line US on the bobbin case applies tension force, so this structure can only apply the tension force of certain limit to bottom line US, therefore, consequently can not apply very big tension force, make the increase of binding strength of upper thread NS and bottom line US be restricted upper thread NS and bottom line US.
And, even increasing tension force as described above sews up, when the part that is unfolded of suturing part was subjected to impacting, upper thread NS and bottom line US or both knottings point that also can form as shown in Figure 9 exposed at last cloth W1, down on the surface of cloth W2, cause the reduction of commodity value thus.
In addition, though as double-stranded make or flat making, the annular stitch that constitutes by the combination with many lines improves binding strength, when a part of line in these annular stitch is cut off, will burst forth from this, therefore, exists the problem of poor durability.
In addition, though overlapping the stitching that its stitch carries out once more at the stitch place of once having sewed up, passing through before also can considering improve the binding intensity of force, but because after the 1st time is sewed up, must turn back to and make the starting position last cloth and following cloth are carried out making again, so, inefficiency not only, and be difficult to make acupuncture on the same position of the last stitch of once sewing up, therefore, exist the problem of the distortion etc. of the knotting point that can not prevent upper thread NS and bottom line US.
In addition, though also can consider to use as shown in figure 10 2 line HS1 and HS2 that last cloth W1, following cloth W2 are carried out manual suture, but need a large amount of working times in order to form this stitch, therefore exist and make inefficiency, and owing to be subjected to the restriction of line length can not form the problem of long stitch etc.
Summary of the invention
In order to solve above-mentioned problem in the past, the stitch formation method of the present invention's 1 Sewing machines, be on the Sewing machines that forms the flush joint stitch, to pass through cloth-feeding device, carry out repeatedly forming a plurality of stitch by the work feed that carries out the n+1 pin to a direction, by forming the action of stitch to the work feed that carries out the n pin in the opposite direction with this side, on cloth, form stitch continuously then with this with identical cloth feed amount.
1 stitch formation method according to the present invention, by cloth on sewing up at the flush joint stitch that binds on each pin and following cloth, owing on each stitch points, form a plurality of knotting points, so not only increased the stretching and draw intensity separately of upper thread NS and bottom line US, also increased the frictional force of the knotting point of upper thread NS on each stitch points and bottom line US simultaneously.
In addition, owing to have many upper thread NS and bottom line US to pass cloth W1, the down surface and the back side of cloth W2 simultaneously, so, the big frictional force of formation between upper thread NS and bottom line US and last cloth W1, time cloth W2.
And, link intensity of force and be dispersed on the many lines.
Owing to have above-mentioned characteristics, so when launching suturing part, not only reduced the elongation of upper thread NS and bottom line US, and reduced the distortion of the knotting point of upper thread NS and bottom line US, and, on the contact portion of upper thread NS and bottom line US and last cloth W1, following cloth W2, few compression only appears in last cloth W1, following cloth W2.
Therefore, according to the present invention, can prevent when launching suturing part on cloth W1, the opening of contact-making surface of the suturing part of cloth W2 down.Even the part to open suturing part applies impulsive force, upper thread NS, bottom line US or both knotting points can not expose on the surface of last cloth W1, following cloth W2 yet, so, have good resistance to impact, and can improve the commodity value of product.
In addition, even a part of line of stitch is cut off,,, can obtain the effect of excellent durability so can not burst forth from this part owing to be the flush joint stitch.
And, because this method of sewing can carry out continuous making, so have the effect that can improve sewing efficiency.
Again, owing to can make eedle fall thorn on the position identical, and can prevent the distortion of the knotting point of upper thread NS and bottom line US, so can obtain to improve the effect of the commodity value of quality of item, raising sewings with before stitching stitch.
The stitch formation method of the present invention's 2 Sewing machines is 1 a described stitch formation method according to the present invention, carries out after to a direction cloth being sewed up 2 pins, to sewing up the action of 1 pin in the opposite direction with this side.
2 stitch formation method according to the present invention can more positively reach the present invention's 1 described effect.
The stitch formation method of the present invention's 3 Sewing machines, be on the Sewing machines that forms the flush joint stitch, to pass through cloth-feeding device, carry out repeatedly by the work feed that carries out the 2n pin to a direction form a plurality of stitch, then by forming the action of stitch to the work feed that carries out the n pin in the opposite direction with this side with identical cloth feed amount, on cloth, form stitch continuously with this.
3 stitch formation method according to the present invention can obtain and the present invention's 1 identical effect.
The stitch formation method of the present invention's 4 Sewing machines is 1 or 2 or 3 described stitch formation methods according to the present invention, is at the hasp stitch that forms at least on each suturing part more than 1.
In the present invention's 4 stitch formation method, owing on each stitch points, form the strong hasp stitch of binding strength, so can obtain to be better than the present invention's 1 effect that is reached.
The present invention's 5 is that a kind of stitch of Sewing machines forms device, be provided with form the flush joint stitch sewing machine, to a direction with carry out the device of work feed in the opposite direction with this side and be used for that cloth-feeding device is carried out continuous control, make its behind the work feed that carries out the n+1 pin to a direction with identical cloth feed amount to carrying out the control device of the work feed of n pin in the opposite direction with this side.
The stitch of 5 Sewing machines according to the present invention forms device, can obtain and the present invention's 1 identical effect.
Description of drawings
Fig. 1 is the block diagram of control circuit of the present invention.
Fig. 2 is the line schematic diagram as the cloth feeding mechanism of the Sewing machines of a routine cloth-feeding device of the present invention.
Fig. 3 is that zero of expression work feed governor motion shown in Figure 2 is carried, forward is carried, the key diagram of the reverse various states of carrying.
Fig. 4 is the stitch of the embodiment of the invention 1.
Fig. 5 is the stereogram of the state after expression launches the suturing part after sewing up with stitch of the present invention.
Fig. 6 is the control flow chart of the embodiment of the invention.
Fig. 7 is the stereogram of stitch in the past.
Fig. 8 is the V-V profile of Fig. 7.
Fig. 9 is that expression is the stereogram of making the state after thing launches from suturing part of Fig. 7.
The cutaway view of Figure 10 other stitch in the past.
Among the figure: the directly moving motor of 3-control device, 6-drive circuit, 7-control circuit, 11-cloth feed amount converter (cloth-feeding device), 16-, 29-cloth-feeding device.
The specific embodiment
Below, in conjunction with Fig. 1～Fig. 5, embodiments of the invention 1 are described.
Cloth-feeding device 29 shown in Figure 2 has on principle and the cloth feeding mechanism identical construction of known Sewing machines in the past.The 9th, the main shaft of Sewing machines, 10 are arranged on the eccentric cam on the main shaft 9.
The 11st, cloth feed amount converter, its central portion are rotated by axle 12 and are supported on freely on the not shown Sewing machines support.At the left end of cloth feed amount converter 11, the rotation of the root of two connecting rods 13,14 of equal in length is supported on axle 13A, the 14A of concentric freely, and the front end of two connecting rods 13,14 is connected on the shared axle 15.Constitute the work feed governor motion by cloth feed amount converter 11, connecting rod 13,14, axle 12,14 etc.
The 16th, be fixed on the straight moving motor on the not shown Sewing machines framework, the right-hand member of its actuator 17 and cloth feed amount converter 11 is by connecting rod 18 formation rotations being connected freely.The 19th, vertical links, its upper end is connected with eccentric cam 10,15 a formation rotation of lower end and connecting rod 13,14 front ends being connected freely.
The 20th, rotate the horizontal feed axle that is supported on freely on the not shown Sewing machines support, fixing the lower end of upward outstanding galianconism 21 at the right-hand member of horizontal feed axle 20, in the fixing lower end of outstanding galianconism 22 upward of left end.The 23rd, connecting rod, the axle 15 of one end and connecting rod 13,14 front ends constitute rotation being connected freely, and the other end and the front end of galianconism 21 constitute and rotate being connected freely.The 24th, work feed wrist, one end rotate freely on the front end of galianconism 22, and two bursts of forks 25 of the other end are nested on the cam up and down 27 that is located on the knee-action axle 26 movably.The 28th, be fixed on the feed dog on the work feed wrist 24.
When cloth feeding mechanism 29 made main shaft 9 rotations at the driving Sewing machines, eccentric cam 10 moved up and down vertical links 19, thereby made the axle 15 that is connected on vertical links 19 lower ends carry out a certain amount of moving up and down.
This 15 moves up and down and conduct to horizontal feed axle 20 as described below makes feed dog 28 carry out the work feed motion.
Promptly, be positioned at axle 13A, 14A under the situation on the straight line H of the upper end that connects galianconism 21 and axle 15 (Fig. 3 A), when axle 15 is moved up and down, though connecting rod 13,14 is that swing at the center with axle 13A, 14A, but owing on the horizontal direction of galianconism 21 upper ends, be not moved, so feed dog 28 is an inactive state, do not carry out work feed.
In addition, be positioned at axle 13A, 14A the upper end that connects galianconism 21 and axle 15 straight line H above situation under (Fig. 3 B), when axle 15 is moved up and down, because connecting rod 13,14 is that swing at the center with axle 13A, 14A, and owing to be connected the swinging track that the axle 15 of connecting rod 13,14 front ends forms shown in Fig. 3 B, therefore on the horizontal direction of galianconism 21 upper ends, be moved, so under the state of feed dog 28 on be projected into not shown needle plate, carry out the work feed motion on the forward stitch direction.And, connecting the upper end of galianconism 21 and the straight line displacement upward of axle 15 relatively along with the position of axle 13A, 14A, galianconism 21 displacement in the horizontal direction increases, thereby the cloth feed amount of feed dog 28 on the forward stitch direction increased.
In addition, be positioned at axle 13A, 14A the upper end that connects galianconism 21 and axle 15 straight line H below situation under (Fig. 3 C), when axle 15 is moved up and down, because connecting rod 13,14 is that swing at the center with axle 13A, 14A, and because the swinging track that axle 15 forms shown in Fig. 3 C, therefore take place in galianconism 21 upper ends and the moving of the horizontal direction of the situation opposite phase of Fig. 3 B, so under the state of feed dog 28 on be projected into not shown needle plate, carry out the work feed motion on anti-cloth feeding direction.And, connecting the upper end of galianconism 21 and the straight line displacement downwards of axle 15 relatively along with the position of axle 13A, 14A, the cloth feed amount on anti-cloth feeding direction increases.
Like this, depend on the position of above-mentioned axle 13A, 14A to positive direction and reciprocal cloth feeding direction and cloth feed amount, the position of axle 13A, the 14A of these connecting rod 13,14 front ends is subjected to the directly control of moving motor 16.
That is, when the actuator 17 of straight moving motor 16 moved to the lower end of connecting rod 18 to make the position of above-mentioned axle 13A, 14A to be positioned at the position (centre position) in the centre position identical with described straight line H, cloth feed amount was zero as described above.
When being descended, actuator 17 make the lower end of connecting rod 18 drop to this centre position when following, cloth feed amount converter 11 is that clockwise rotation is carried out at the center with axle 12, be positioned at the position of axle 13A, the 14A of described straight line H top by the decision of the down position of this actuator 17, decide forward stitch direction and cloth feed amount with this.
In addition, when the actuator 17 of straight moving motor 16 rose to the position of connecting rod 18 lower ends to be higher than described centre position, cloth feed amount converter 11 was that counterclockwise rotation is carried out at the center with axle 12.At this moment, determined that the position of axle 13A, 14A is positioned at described straight line H below, therefore, determined the position of axle 13A, 14A by the lifting position of this actuator 17, and determine reverse cloth feeding direction and cloth feed amount.
In other words, by deciding cloth feeding direction and cloth feed amount by the straight above-below direction position of moving the actuator 17 of motor 16 drivings.
Fig. 1 is the block diagram of expression as the control circuit of control device of the present invention, the 1st, be configured in the startup shutdown switch on the pedal, and when foot pedals, enabling signal takes place, stop signal when returning to the home position, pedal takes place.2 are arranged on the eedle position detector on the machine spindle, be used to detect the upper-lower position of eedle and needle position signal takes place, and be input to the control device 3 that constitutes by ROM, RAM, CPU, count to major general's upper/lower positions signal by the counter (not shown) of described CPU inside.Constitute the pin times detecting device that falls by this eedle position detector 2 and internal counter.
In the ROM of control device 3, store and comprise the pin number of times (n+1) and be used for both relational expression and the control program of flow chart described later etc. of the pin number of times (n) that falls of reverse work feed of falling that is used for the forward work feed as described later, also store about the data of the actuating quantity (position) of positive and negative cloth feed amount and straight moving motor 16 simultaneously etc., under the control of CPU, generate the control instruction of the corresponding positive and negative cloth feed amount that sets by input unit 8.
The 5th, drive the electrical motor of sewing machine that stops Sewing machines, the 4th, drive the drive circuit that stops electrical motor of sewing machine 5, the 6th, drive the drive circuit stop above-mentioned straight moving motor 16, the 7th, control drive circuit 6 makes the operating position of straight moving motor 16 be positioned at control circuit by the specified position of the instruction of control device 3.
The 8th, of the present inventionly be used to specify the input unit that stitch is made mode, set by the operator and be used for fall the pin frequency n or the forward cloth feed amount of reverse work feed, and be input in the control device 3.
Perhaps, also can be respectively to the forward work feed fall the pin number and oppositely the work feed pin number that falls import setting.
In addition, also can be stored in the model that configures forward work feed pin number and reverse work feed pin number among the ROM of control device 3 in advance, select then to set.
Below, the effect of the embodiment of the invention 1 is described.Embodiment 1 is setting (n+1) inferior pin that falls, is setting the example under n time the situation of the pin that falls on the direction cloth feeding direction on the forward cloth feeding direction.And, under the situation of embodiment 1, n=1.
At first, set subprogram by the n=1 (S-1) of input unit 8 inputs by input as the pin time logarithmic data that falls.
Then, control circuit 7 sends control instruction, by drive circuit 6, drive straight moving motor 16 (S-2) with the drive amount of the forward cloth feed amount that is equivalent to import setting.Like this, actuator 17 is descended, be set at the cloth feed amount of the regulation on the forward stitch direction.
Then, when making starting switch 1 that enabling signal takes place by foot pedals (S-3), drive electrical motor of sewing machine 5 (S-4) by drive circuit 4, the Sewing machines entry into service forms stitch then.The counter of control device 3 inside is counted the eedle position signalling of eedle position detector 2 outputs, does not have the generation (S-5) of stop signal as long as decontrol pedal like this, just can carry out the pin that falls the 2nd time, and then counter carries out n
oThe calculating of=n+1.That is, carry out the work feed of positive direction behind the 1st pin that falls, before the pin that falls next time (S-6), directly the actuator 17 of moving motor 16 maintains the position of decline always.
Then, control circuit 7 sends instruction, and drives straight moving motor 16 (S-7) by drive circuit 6 with the drive amount of the reverse cloth feed amount that is equivalent to import setting.Like this, actuator 17 is risen, be set at the reverse cloth feeding direction that has with the identical cloth feed amount of forward stitch direction.
When the next signal by 2 outputs of eedle position detector makes rolling counters forward is n
o=1 o'clock (S-8) drives straight moving motor 16 (S-9) according to the forward cloth feed amount of setting.Then, up to input stop signal (S-5), carry out repeatedly 2 times are fallen between the pin as the positive direction work feed, the action of pin as reciprocal work feed that fall next time.
In other words, carry out repeatedly continuously after 2 times fall to carrying out the work feed of positive direction between the pin,, form the stitch that repeats in this wise at the pin that behind the opposite direction work feed, once falls again with the cloth feed amount identical with positive direction.
Below, the state of the stitch of actual formation is described in conjunction with Fig. 4.
In addition, in stitch shown in Figure 4, upper thread NS1, NS2, NS3 and bottom line US1, US2, US3 last cloth W1, down above the cloth W2 with following on form and separate, but in fact because each pin is all strained powerfully, the top and following formation with last cloth W1, following cloth W2 contacts closely so these upper threads are with bottom line.
Straight moving motor 16 is driven to the down position that is equivalent to positive direction cloth feed amount P.When driving electrical motor of sewing machine 5 runnings, at first eedle drops on the stitch points A of Fig. 4, forms the toe-in 1A of intact stitch, only carries to the forward stitch direction of arrow directions X with cloth feed amount P then and goes up cloth W1 and following cloth W2, eedle drops on stitch points B then, forms the toe-in 2A of intact stitch.
By counter the above-mentioned 2 times pin number of times that falls is counted (n
o=n+1), owing to be set at n=1, institute thinks n
o=2, instruction by control device 3 makes control circuit 7 that signal take place, make the actuator 17 of straight moving motor 16 rise to the lifting position that is equivalent to the anti-cloth feed amount P identical with the forward cloth feed amount, only carry to the reverse cloth feeding direction of arrow Y direction and go up cloth W1 and following cloth W2 with cloth feed amount P, eedle drops on stitch points A then, thereby forms the toe-in 3A of hasp stitch.
When the counting of the pin number of times that falls of the stitch points A behind above-mentioned reverse work feed is n
o=1 o'clock, the actuator 17 of straight moving motor 16 drops to initial position, is set in the cloth feed amount P on the positive direction, and only carries to the forward stitch direction of arrow directions X with cloth feed amount P and go up cloth W1 and following cloth W2, the 4th pin drops on the stitch points B, forms the toe-in 4A of intact stitch.Further only carry to the forward stitch direction then and go up cloth W1 and following cloth W2, the 5th pin is dropped on the stitch points C, form the toe-in 5A of intact stitch with cloth feed amount P.
After 2 pin number of times that fall to above-mentioned positive direction are counted the device counting, the actuator 17 of straight moving motor 16 moves to and last identical top position, form reverse work feed, and only carry to the reverse cloth feeding direction of arrow Y direction and go up cloth W1 and following cloth W2 with cloth feed amount P, the 6th pin is dropped on the stitch points B, form the toe-in 4 of hasp stitch.
Thereby in the stitch that forms, shown in stitch points B among Fig. 4 and stitch points C, go up 2 intact stitch of formation and 1 hasp stitch that binding strength is strong in 1 stitch points (same needle downing position).And between the stitch at 1 interval, have 3 upper thread NS1, NS2, NS3 and bottom line US1, US2, US3 respectively, increased upper thread and last cloth W1 and bottom line and the frictional force of following cloth W2 on contact-making surface.
Owing to carried out the stitching of such stitch, even launch suturing part as illustrated in fig. 5, the contact-making surface of the suturing part of last cloth W1, following cloth W2 can not open yet.
In the above embodiments 1, though the line ball when beginning to sew up sew up, but the line ball can begin to sew up according to operator's operation signal the time is sewed up.
For example, line ball when sewing up is to start with sewed up, after (directions X) carries identical cloth feed amount (at interval) in the other direction, eedle is dropped on the line ball stitch points form stitch, carry to positive direction with identical distance then, on stitch points A, form stitch, carry to opposite direction once more with same intervals then, on described line ball stitch points, form stitch.Then, after finishing line ball when beginning to sew up and sewing up, form the stitch of the foregoing description 1.
In addition, the line ball that also can sew up when finishing is sewed up.
In addition, initial line ball is sewed up and last line ball is sewed up for carrying out, can be by importing the signal in control device for sewing-machine, for example when setting, automatically carry out by the enabling signal and the stop signal of pedal by shading switch etc.
The pin number of times that falls (stitching number of times) of the formation stitch of the pin number of times that falls (stitching number of times) of the formation stitch of described in the above-described embodiments forward work feed and reverse work feed can change arbitrarily.For example, also can carry out 4 pins that fall by the forward work feed after, carry out the pin that falls 2 times by reverse work feed.Like this, after the 3rd time the pin that falls, on each needle falling point, form 2 intact stitch and a hasp stitch.
In addition, in each above-mentioned embodiment, to being illustrated more than the formation of the pin number of times of under reverse work feed, sewing up that falls, but also can make the pin number of times of under reverse work feed, sewing up that falls on the contrary more than the pin number of times of under the forward work feed, sewing up that falls at the pin number of times of sewing up under the forward work feed that falls.
In addition, in the Sewing machines of reality, owing to utilize feed dog to carry out forward work feed and reverse work feed, even so set identical cloth feed amount, actual accurate cloth feed amount also can be different, but can form same needle falling point basically, therefore, can think that pin is to drop on the same needle falling point.
In addition, in the above-described embodiment, as cloth-feeding device the formation of carrying last cloth and following cloth by the cloth feeding mechanism of Sewing machines has been described, but also can have substituted this cloth-feeding device with known X-Y cloth-feeding device.Like this, not only can sew straight thread stitch, also can sew the stitch of the arbitrary shape of curve stitch and curve and straight line successive stitches etc. continuously.
In addition, the toe-in of upper thread NS on each stitch points and bottom line US can be by to the control of upper thread NS, bottom line US and eedle etc. and at random form the hasp stitch.
In addition, not to need especially under the situation of hasp stitch, also can use known hasp stitch to prevent locking mechanism, for example use mechanism by needle bar and rotating shuttle being prevented from form stitch in the cloth feeding direction zone of rotating, forming the hasp stitch on the axis direction etc., prevent from each stitch points, to form the hasp stitch.
(summary of the invention)
As mentioned above, the present invention is owing to sewing up by the flush joint stitch that binds at each pin Each needle falling point (stitch points) on upper cloth and the lower cloth is upper to form a plurality of knotting points, so not only increase Upper thread NS and bottom line US separately stretch tensile strength, also increased simultaneously on each stitch points The frictional force of the knotting point of upper thread NS and bottom line US.
In addition, owing to have many upper thread NS and bottom line US to pass cloth W1, lower cloth W2 simultaneously Surface and the back side, so, between upper thread NS and bottom line US and upper cloth W1, lower cloth W2 Form big frictional force.
And, link intensity of force and be dispersed on the many lines.
Above-mentioned owing to having, so when launching suturing part, not only reduced upper thread NS and reached The elongation of bottom line US, and reduced the distortion of the knotting point of upper thread NS and bottom line US, and, At the contact portion of upper thread NS and bottom line US and upper cloth W1, lower cloth W2, upper cloth W1, lower cloth Few compression only appears in W2.
Therefore, according to the present invention, can prevent when launching suturing part on the seam of cloth W1, lower cloth W2 Close the opening of contact-making surface of section, upper thread NS, bottom line US or both knotting points can not expose On the surface of upper cloth W1, lower cloth W2, thus the effect that can improve commodity value had, and Even have in the part of opening suturing part impacted, upper thread NS, bottom line US or both The knotting point can not expose the lip-deep good resistance to impact at upper cloth W1, lower cloth W2 yet.
In addition, even a part of line of stitch is cut off owing to be the flush joint stitch, thus not can from This part is burst forth, and can obtain the effect of excellent durability.
And, because this method of sewing can carry out continuous making, make so have to improve The effect of efficient.
Again and since can make eedle fall thorn with the essentially identical position of needle falling point before on, and And can prevent the distortion of the knotting point of upper thread NS and bottom line US, so can obtain to improve goods matter The effect of the commodity value of amount, raising sewed product.
And, owing to form the strong hasp stitch of binding strength in each stitch points, so can advance one Step is improved above-mentioned effect.
Claims (5)
1. the stitch formation method of a Sewing machines is characterized in that:
On the Sewing machines that forms the flush joint stitch, pass through cloth-feeding device, carry out repeatedly forming a plurality of stitch by the work feed that carries out the n+1 pin to a direction, by forming the action of stitch to the work feed that carries out the n pin in the opposite direction with this side, form stitch continuously then with this with identical cloth feed amount.
2. stitch formation method according to claim 1 is characterized in that:
By carrying out cloth being sewed up 2 pins repeatedly, to sewing up the action of 1 pin in the opposite direction, on cloth, form stitch continuously then with this side to a direction.
3. the stitch formation method of a Sewing machines is characterized in that:
On the Sewing machines that forms the flush joint stitch, pass through cloth-feeding device, carry out repeatedly forming a plurality of stitch by the work feed that carries out the 2n pin to a direction, by forming the action of stitch to the work feed that carries out the n pin in the opposite direction with this side, on cloth, form stitch continuously then with this with identical cloth feed amount.
4. according to claim 1 or 2 or 3 described stitch formation methods, it is characterized in that:
At the hasp stitch that forms at least on each stitch points more than 1.
5. the stitch of a Sewing machines forms device, it is characterized in that:
Be provided with the Sewing machines that forms the flush joint stitch, to a direction with this side carry out in the opposite direction work feed device, be used for that cloth-feeding device is carried out continuous control, make cloth-feeding device behind the work feed that carries out the n+1 pin to a direction with identical cloth feed amount to carrying out the control device of n Needle cloth-feeding in the opposite direction with this side.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001314276 | 2001-10-11 | ||
| JP2001314276A JP2003117278A (en) | 2001-10-11 | 2001-10-11 | Stitching method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1412370A true CN1412370A (en) | 2003-04-23 |
Family
ID=19132617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02145767A Pending CN1412370A (en) | 2001-10-11 | 2002-10-11 | Stitch forming method and device |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP2003117278A (en) |
| KR (1) | KR20030030912A (en) |
| CN (1) | CN1412370A (en) |
| CZ (1) | CZ20023369A3 (en) |
| DE (1) | DE10247343A1 (en) |
| TW (1) | TW567261B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1926274B (en) * | 2005-02-11 | 2012-11-28 | 默利有限公司 | Sewing machine |
| CN107444210A (en) * | 2016-01-08 | 2017-12-08 | 丰田纺织株式会社 | Sew structure and possess the skin material of the seat for vehicle of the sewing structure |
| CN108589093A (en) * | 2018-06-20 | 2018-09-28 | 康宁 | A kind of double fibulas embroidery skill and technique and its application |
| CN110184749A (en) * | 2019-05-20 | 2019-08-30 | 长春富晟汽车技术研发有限公司 | Realize the bind of seat surface sleeve 3D effect |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3718801B2 (en) * | 2002-03-25 | 2005-11-24 | 株式会社ミカサ | Sewing stitch forming method |
| US6962120B1 (en) | 2004-09-13 | 2005-11-08 | Mikasa Corporation | Seam forming method using sewing machine |
| US8100070B2 (en) | 2009-08-05 | 2012-01-24 | Faurecia Automotive Seating, Inc. | Flat seam construction |
| US8316785B2 (en) | 2009-08-05 | 2012-11-27 | Faurecia Automotive Seating, Llc | Flat seam construction for automotive upholstery |
-
2001
- 2001-10-11 JP JP2001314276A patent/JP2003117278A/en active Pending
-
2002
- 2002-10-09 KR KR1020020061393A patent/KR20030030912A/en not_active Application Discontinuation
- 2002-10-10 DE DE10247343A patent/DE10247343A1/en not_active Withdrawn
- 2002-10-10 CZ CZ20023369A patent/CZ20023369A3/en unknown
- 2002-10-11 TW TW091123502A patent/TW567261B/en active
- 2002-10-11 CN CN02145767A patent/CN1412370A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1926274B (en) * | 2005-02-11 | 2012-11-28 | 默利有限公司 | Sewing machine |
| CN107444210A (en) * | 2016-01-08 | 2017-12-08 | 丰田纺织株式会社 | Sew structure and possess the skin material of the seat for vehicle of the sewing structure |
| CN107444210B (en) * | 2016-01-08 | 2019-08-06 | 丰田纺织株式会社 | It sews structure and has the skin material of the seat for vehicle of the sewing structure |
| CN108589093A (en) * | 2018-06-20 | 2018-09-28 | 康宁 | A kind of double fibulas embroidery skill and technique and its application |
| CN110184749A (en) * | 2019-05-20 | 2019-08-30 | 长春富晟汽车技术研发有限公司 | Realize the bind of seat surface sleeve 3D effect |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10247343A1 (en) | 2003-05-28 |
| TW567261B (en) | 2003-12-21 |
| JP2003117278A (en) | 2003-04-22 |
| CZ20023369A3 (en) | 2004-06-16 |
| KR20030030912A (en) | 2003-04-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101041925A (en) | Sewing machine | |
| CN1412370A (en) | Stitch forming method and device | |
| CN1752321A (en) | Cloth feeding device for sewing machine | |
| CN1144906C (en) | Cloth feeding device for sewing machine | |
| CN1458317A (en) | Cloth feeder of sewing machine | |
| CN1676724A (en) | Threading holder of sewing machine | |
| CN1038150C (en) | Needle-bar driving device | |
| CN1446970A (en) | Method of using sewing machine for forming seam | |
| CN201873845U (en) | Oscillating shuttle quilting machine | |
| CN1150362C (en) | Sewing machine with needle-feeding structure | |
| TWI296294B (en) | Sewing machine | |
| CN201738118U (en) | Lockstitch forming mechanism for novel arm-type horizontal-sending sewing machine | |
| CN1143016C (en) | Sewing machine for eyelet | |
| CN1542191A (en) | Coiling root button attaching sewing machine | |
| CN1478936A (en) | Control device of sewing machine and its control method of sewing machine | |
| CN1676725A (en) | Threading holder of sewing machine | |
| CN1542190A (en) | Control apparatus for button sewing machine and button sewing method using the same | |
| CN1256476C (en) | Double-thread overlock sewing machine | |
| CN100535221C (en) | Sewing needle feeding sewing machine | |
| CN1542193A (en) | Cloth feeding mechanism of sewing machine | |
| CN1408923A (en) | Sewing machine for locking button hole | |
| CN100347371C (en) | Method and apparatus for forming single-thread chain sewing end knot | |
| CN1676717A (en) | Presser foot lifting device for sewing machine | |
| CN208087909U (en) | A kind of computerized emboridering machine independence presser foot drive | |
| CN107099936A (en) | Sewing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |