CN1639407A - Forward feed device for a sewing machine - Google Patents
Forward feed device for a sewing machine Download PDFInfo
- Publication number
- CN1639407A CN1639407A CNA038052660A CN03805266A CN1639407A CN 1639407 A CN1639407 A CN 1639407A CN A038052660 A CNA038052660 A CN A038052660A CN 03805266 A CN03805266 A CN 03805266A CN 1639407 A CN1639407 A CN 1639407A
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- China
- Prior art keywords
- actuator
- support
- driven member
- hold
- axle
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/10—Work-feeding means with rotary circular feed members
- D05B27/14—Work-feeding means with rotary circular feed members rotating discontinuously
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention relates to a forward feed device for a sewing machine, comprising a bottom and/or top rotating feeder and a first drive part (47) and a second drive part (48) which are driven by a sliding gear drive. Both drive parts can be brought into frictional engagement with an output part (49) that can be rotationally connected to the feeder (17 or 18), wherein the drive parts (47, 48) can be moved relative to the output part (49) in such a way that they alternately engage in the periphery of the output part (49). In order to engage the drive parts (47, 48) with or disengage said drive parts from the output part (49), the pressure means (51, 52) producing frictional engagement between the drive parts (47, 48) and the output part (49) are arranged and controlled on supports (55, 58) in such a way that at least one of the supports (58) can be relatively moved in relation to the pressure means (52) it bears.
Description
The present invention relates to a kind of feed arrangement that is used for Sewing machines.
Introduced a kind of Sewing machines with a feed arrangement in DE 22 23 202 C2, its feed dog contacts with sewing product during Sewing machines work all the time.Here feed dog is made so-called feeding and is given wheel, and they carry out going on foot the feed motion that is merged into by two during needle tracking forms.
This device has square up respectively shape and can be respectively around the rotating clamping bar of a tenon axle of (Fig. 5 that sees DE 22 23 202 C2) two, they respectively with a jaw acting in conjunction by bracket supports, and being used for driving cog belt, cog belt is by two gear guiding.Two gears directly drive with the feed dog of two rotations by means of transmission mechanism and are connected.Wherein first clamping bar and first jaw action that is equipped on it be in first branch of cog belt, and second clamping bar and second jaw action that is equipped on it are in second branch of cog belt.
Therefore first clamping bar and first jaw constitute one first actuator, and second clamping bar and second jaw constitute one second actuator, and cog belt is a driven member.
Two jaws act on having on tooth one side of cog belt respectively, and two clamping bars act on respectively on its outside, and wherein the corresponding driving connection produces by force closure by means of acting on two springs on the clamping bar.
The driving of two actuators is undertaken by having the eccentric axle and a guide rod and the mobile slide block in a chute (Kulisse) that are contained in above it in this feed arrangement, at this moment can change effective size of slide block movement by the obliquity of the chute that can adjust by means of one handle, thereby change the size of corresponding feeding step pitch.These parts constitute a feeding transmission mechanism, and it is driven by the axle that machine spindle or is connected with this main shaft fixed drive.
The feeding transmission mechanism of Gou Chenging is used for making two actuators to lift one by the definite amount of the obliquity of chute in the one-period that needle tracking forms like this, and descends again.Wherein first branch force closure ground of it and cog belt is chimeric during first actuator moves upward, and second actuator opens, and does not exist to drive to connect between second branch of it and cog belt.First actuator follow move downward during it opens.And second branch force closure ground of second actuator and cog belt is chimeric.
For the chimeric of two actuators and cog belt respective branch and disengaging, axle (can be main shaft or another axle that is connected with main shaft) at Sewing machines is gone up another eccentric wheel is installed, it acts on the upper end of the support that supports jaw by a guide rod, and making support do gyration around a tenon axle, tenon axle itself is hinged with a rocking arm that supports regularly with housing.Constitute a control transmission mechanism that is connected with Sewing machines drive unit rotation driving by shaft-driven eccentric wheel together with guide rod and support.
By this control transmission mechanism, first branch that had both determined first actuator and cog belt enters the chimeric moment, determine to be in the time span of chimerism again, here reach by being in transmission connection of two clamping bars, second branch of second actuator and cog belt is not chimeric during first branch of first actuator and cog belt is chimeric, and cog belt can freely-movable between the clamping bar of second actuator and jaw.-second actuator is chimeric with second branch immediately under the situation that-first actuator and first branch throw off after (first) feeding step pitch that this is caused by first actuator finishes.(second) that is produced by second actuator is though feeding step pitch and (first) feeding step pitch direction of being produced by first actuator are opposite thus, and it impels cog belt to move in a similar direction, and therefore two belt pulleys is rotated to same direction.
Here shortcoming is, may occur uncertain relation at cog belt aspect the driving.
For example may occur that promptly, first actuator and second actuator all not have with cog belt chimericly in short time period, make the feed dog of feed arrangement lose motion control thus.Also opposite situation may occur, that is, first and second actuators are all chimeric with cog belt in the time period of a weak point, make cog belt be subjected to bigger wearing and tearing thus.Therefore these two kinds of faults both may cause feed motion to sewing product to produce not being little influence, may causing the cog belt premature wear again.
The feed arrangement that has the feed dog that contacts with sewing product constantly by the known another kind of DE 198 12 913 C2.Similar with the feed arrangement of pressing DE 22 23 202 C2, it has a feeding transmission case, but this used being replaced by a so-called link rod needle gage adjuster with well-known chute needle gage adjuster in the feed arrangement by DE 22 23 202 C2, its operation principle is known equally.
Here two actuators are made the part of a clutch, and and driven member be provided with one heart with same axis together.The feeding transmission mechanism makes two actuators around this rotational oscillating motion.Here actuator and driven member can move in this wise along axis direction, make that the rubbing surface of the rubbing surface of when first ascending motion first actuator and driven member is chimeric, the rubbing surface of the rubbing surface of second actuator and driven member is chimeric mutually when second ascending motion.Wherein second actuator and driven member are thrown off during first actuator and driven member are chimeric, first actuator and driven member disengagement during second actuator and driven member are chimeric on the contrary.Connect in order to ensure separately driving between first or second actuator and the driven member, being provided with one also can axially movable hollow shaft with concentric settings of axle of actuator and driven member, and its axial location is passed through one and controlled transmission mechanism control.Thus the drivening piece that on the hollow shaft flange, forms sometimes with first actuator, chimeric with second actuator sometimes, realize driven member rotatablely moving thus towards the pulsed of a direction.
Because the conversion of the driving of driven member from first to second actuator or from second to first actuator was carried out in two reciprocating motions of actuator reverse moments, approach zero in this momentary angular speed, be connected though this can make two actuators drive with driven member at this constantly, this requires the motion flow process of feeding transmission mechanism and control transmission mechanism accurately to adjust mutually.
The objective of the invention is, create a kind of Sewing machines feed system with the feed dog that contacts with sewing product all the time at its run duration, even its transmission situation is still determined when driven member drives conversion fully, if the conversion of from first to second actuator is not to carry out in the moment of two actuator reversings of motion exactly.That is to say and guarantee: wait to break away from chimeric actuator and driven member and keep chimeric always, until driven member and treat with its chimeric actuator between set up to drive be connected till.
This purpose realizes by the feature of claim 1.The conception that the present invention dominates is to wait that the disengagement that breaks away from chimeric actuator overcomes the spring force realization.Its precondition is, if wait to break away from chimeric actuator when just in time beginning to leave driven member, just treat to be fitted on the driven member with the chimeric actuator of driven member.That is to say the conversion that actuator replaces takes place.Therefore the transformation to another actuator is carried out as consecutive steps.Only can contact with the driven member face or be under pressure by controlling the driver configuration sealedly at the next actuator that works in chronological order, also just chimeric actuator is just thrown off.By carrying out power and contact conversion by the conversion of effective actuator of controlling the transmission mechanism introducing and the flexible acting in conjunction moment ground of spring.Reach the absolute gapless conversion of actuator, that is power stream or torque-flow is not free is delivered on the driven member discontinuously.
In configuration aspects, the relative motion between hold-down mechanism and its support reaches by such method, and promptly hold-down mechanism is supported by first-class armed lever, waits armed lever to be connected pivotally with the support that is equipped on hold-down mechanism.
If hold-down mechanism is arranged on etc. in the end regions of armed lever here, and an end that is hinged on the connector on another support acts on etc. on the other end of armed lever, and it is favourable connecting for the motion of two supports.
If the application point between hold-down mechanism and the actuator is positioned at one by on the straight line at driven member center, just reach favourable power effect relation so.
Obtain in solution favourable aspect the friction law by such mode, that is, hold-down mechanism is made of roller.
A scheme of several parts that only needs simple in structure of control transmission mechanism reaches by such mode, promptly, this control transmission mechanism comprises one four hinge transmission device, its eccentric wheel is connected with main shaft drives, its rocking arm is by being configured to, support and etc. the hinged axis distribution that is parallel to each other between the armed lever and between the pull bar of support and four hinge transmission devices.
If Sewing machines is equipped with a pin transport, just its feed motion can be easily and the motion match of feed dog so, if the swing frame of shank can be connected with the output of feeding transmission mechanism.The feed motion of pin and feed dog can be adjusted with same guiding mechanism thus.
Other advantages of the present invention and details are obtained by following explanation to the embodiment shown in the accompanying drawing.
Accompanying drawing is represented:
Fig. 1: the diagrammatic elevation view of a Sewing machines;
Fig. 2: by the schematic diagram of operation principle of the present invention;
Fig. 3: the front view of Sewing machines and domain of dependence of the present invention;
Fig. 4: along the cutaway view of Fig. 3 III-III line,
Fig. 5: along the cutaway view of Fig. 3 IV-IV line.
Expression one Sewing machines 1 in Fig. 1, it has an arm 2, a bearing 3 and a base plate 4.On base plate 4, can fix a unillustrated pillar.
One arm axle 5 that is bearing in the unillustrated bearing is set, effect one crank driving mechanism 6 that is connected with the shank 8 that carries pin 7 on its end in arm 2.Pin 7 and one be arranged on the base plate 4 or a pillar that is fixed on the base plate in the shuttle acting in conjunction, shuttle by arm axle 5 through one be in transmission connection 9 and the axle 11 that is arranged on its back drive.
Shank 8 is bearing in the framework 12 that is bearing in swingably in the arm 2 movably, and it is connected by crank driving mechanism 13 rocker arm shaft 14 interior with being bearing in arm 2.Shank 8 also is parallel to the oscillating motion of sewing product direction of feed in the mode that also will illustrate later except it moves up and down.Be provided with another axle 15 at arm 2 being parallel to rocker arm shaft 14, (go up bevel gear pair, vertical shaft, bevel gear pairs) down is connected with the last feed dog 17 that rotates by being in transmission connection 16 for it.Feed dog 17 is by bearing 18 supporting that is fixed on the arm 2, the rotatablely moving of the horizontal pulse formula of going forward side by side.In base plate 4 or is fixed on pillar on the base plate, establish one coefficient with last feed dog, be the following feed dog 19 that is rotating equally, it and last feed dog 17 rotatablely move as pulsed together, be in transmission connection with axle 21 for this reason, this axle is parallel to arm axle 5 setting, and from feed dog down almost one through to bearing 3.
One eccentric wheel 22 (Fig. 3) is installed on arm axle 5, it and eccentric rod 23 actings in conjunction, this eccentric rod is connected with guide rod 25 by means of tenon axle 24.Guide rod 25 is connected by the framework 26 of tenon axle 24 with the known link rod needle gage adjuster 27 that forms like this.The arm 29 of crank 31 acts on the guide rod 25 by draw pin 28, and crank is installed on the axle 32.Eccentric wheel 22 and the part that is arranged on its back constitute 33, two of feeding transmission cases and act on the motion that swings up and down of pull bar 36,37 on the crank 31 second arms 34 by tenon axle 35.Two pull bars 36,37 that rise and descend pass bearing 3 and extend in the zone of base plate 4 downwards always.Wherein on pull bar 36, pass through tenon axle 38 hinged rocking arms 39, and on pull bar 37, pass through tenon axle 41 hinged Rocker arm 4s 2.Article two, rocking arm 39,42 can turn round around an axle 21 that is used as swinging axle, and does oscillating motion corresponding to the motion that swings up and down of pull bar 36,37 around axle 21, and axle 21 itself is bearing on the base plate 4, and in its terminal up and down feed dog 19 driving connections of bearing 3 dorsad.
The hinged tenon axle of setting up between pull bar 36 and the rocking arm 39 38 acts on the arm of a friction block that does not draw in detail 44, and this friction block can be fitted on the wheel hub 45 that itself is supported by axle 21 and the axle rotationally fixedly connects therewith by its inner surface that is provided with friction plate.Correspondingly the arm of a friction block that does not draw in detail 46 acts on the hinged tenon axle of setting up between pull bar 37 and the Rocker arm 42 41, and this friction block can be fitted on the side radially relative with friction block 44 of wheel hub 45 by its inner surface that is provided with friction plate.
Friction block 44 is fitted on the wheel hub 45 with the inner surface that the diameter of itself and wheel hub 45 peripheries is complementary during pull bar 36 moves upward, and makes wheel hub do to be delivered on the axle 21 to rotatablely move with respect to Fig. 2 and 3 clockwise rotatablely moving.Therefore friction block 44 constitutes first actuator 47; At this moment friction block 46 breaks away from chimeric with the wheel hub 45 that constitutes driven member 49.
The inner surface that friction block 46 diameters same with it and wheel hub 45 peripheries mate during pull bar 37 moving downward subsequently is fitted on the wheel hub 45, and its is done with respect to Fig. 2 and 3 further is clockwise rotatablely moving equally, and this is delivered on the axle 21 equally.Therefore friction block 46 constitutes second actuator 48 of wheel hub 45 (driven member 49); Therefore the friction block 44 that at this moment moves downward equally together with pull bar 36 breaks away from chimeric with the periphery of wheel hub 45.
For realize between first actuator 47 and the driven member 49 or the friction between second actuator 48 and the driven member 49 sealed, set one first hold-down mechanism 51 for first actuator 47, and sealed in order to realize the friction between second actuator 48 and the driven member 49, set one first hold-down mechanism 52 for second actuator.Two hold-down mechanisms are preferably made roller.
In order to support two hold- down mechanisms 51,52 suspension bracket 53 is set, it is by base plate 4 supportings.At suspension bracket internal support one tenon axle 54, support 55 is installed on this tenon axle pivotally in the left end zone of suspension bracket 53.Here in suspension bracket 53, be favourable with tenon axle 54 eccentric supports, so that can adjust thus by the friction block 44 of support 53 supportings and the relative position between the driven member 49.One fulcrum post that does not draw in detail is fixed on this support in the approximate center of support 55, first hold-down mechanism 51 (roller) but free rotary ground supporting on this fulcrum post, this hold-down mechanism can be fitted with the back side of friction block 44.
On the zone 56 that suspension bracket 53 perpendicular make progress, fix another fulcrum post 57.On it, support one second support 58 pivotally.In support 58 upper area, fix another fulcrum post 59, it-consult hinged first-class armed lever 61 on Fig. 4-right-hand member, in the top in the zone with a fulcrum post that is used for second hold-down mechanism that does not draw in detail, hold-down mechanism can be on fulcrum post free rotary ground supporting, and can fit with the back side of second friction block (second actuator 48).Therefore wait armed lever 61 to be bearing on the tenon axle 59, pull bar 72 acts on this tenon axle.
Waiting armed lever 61 upper ends to fix a pin 62, it is used for an end of support spring 63, and its other end is suspended on the pin 64, and itself is fixed on this pin again on the free end of support 55.Spring 63 is used for making two friction blocks 44 and 46 (actuator 47 and 48) to keep being fitted on the wheel hub 45 (driven member 49).
Fix a tenon axle 65 on the lower end of the armed lever 61 such as grade that is bearing in tenon axle 59, an end of connector 66 is hinged on this tenon axle, and its other end acts on the support by a tenon axle 67 that is fixed on the support 55.Therefore two supports 55 are connected with 58 mutual motions.
Sealed for the friction of setting up and throw off between friction block 44,46 and the driven member 49, a control transmission mechanism 68 is set, it has an eccentric wheel 71 that is installed on the axle 69.Axle 69 supports regularly with housing, and is connected with arm axle 5 drivings, that is it is driven by the gearratio of arm axle with 1: 1.Eccentric wheel 71 and pull bar 72 actings in conjunction, the free end of pull bar is hinged on the tenon axle 59 that is fixed on the support 58, makes support 58 and make the support 55 can be around its pivot 57 and 54 revolutions separately by connector 66.
Basically be that the control transmission mechanism 68 of one four hinge transmission mechanism makes two supports 55 and 58 each transfers to a reciprocal basically motion at arm axle 5 or axle 69, it is used for making two friction blocks 44,46 (actuator 47,48) alternately chimeric with wheel hub 45 (driven member), makes wheel hub and axle 21 carry out a pulsed of being synthesized by two componental movements together respectively thus and rotatablely moves.Because spring 63 make two friction blocks 44,46 be fitted on the wheel hub 45 and guarantee them and wheel hub 45 between friction sealed, the sealed disengagement that rubs always overcomes the power of spring 63 and carries out.The lift process of corresponding friction block 44 or 46 from the wheel hub 45 overcomes spring force respectively and realizes, therefore, is that corresponding another friction block 46 or 44 is fitted in the precondition on the wheel hub 45.
The conversion of friction block 44 or 46 applying is alternately carried out, wherein converting another friction block to from a friction block carries out as sequential steps, only the friction block that will work at the next one is when shape has been run into wheel hub 45 sealedly and has been fitted on the wheel hub, and the friction block that also worked at that time just can unclamp.Owing to the acting in conjunction that compresses motion and spring force of support 55,58, the conversion that friction block is fitted is carried out instantaneously, and this causes gapless applying conversion, that is the conversion of power stream has no time interruptedly to carry out.Therefore wheel hub 45 is in Guaranteed in the transition period of fitting all the time.Here the applying short time of two friction blocks 44,46 carries out.Because under the situation of the applying of normally adjusting friction block 44,46 and control transmission mechanism 68, the conversion of fitting was carried out in the moment of friction block 44,46 reversings of motion, therefore this moment its speed come zero, this moment two friction blocks, 44,46 (two actuators 51,52) all may be sealed with wheel hub (driven member 49) friction.This coincidence that two friction blocks 44,46 were fitted in 45 last moments of wheel hub since the relative motion between the support 58 and second hold-down mechanism 52 reach.
The situation that two friction blocks of expression 44,46 are fitted and changed among Fig. 2, wherein hold-down mechanism 51 is because the oscillating motion (it further passes on the support 55 by connector 66) of the support 58 that is imported into by the motion of pull bar 72 is run on the wheel hub friction block of waiting to be fitted on the wheel hub 45 44, and is fitted on the wheel hub 45 with making its force closure.Do gyration at the medium armed lever 61 of this motion process of support 58 around tenon axle 59, thereby do relative motion, thereby friction block to be released 46 also is pressed on the wheel hub 45 by second hold-down mechanism 52 always with respect to support 58.This instantaneous position of wheel hub 45 is fixing by two friction blocks 44,46.Wait then armed lever 61 just and support 58 carry out together around with the gyration of the fixing tenon axle 57 of housing, make power that second hold-down mechanism 52 overcomes spring 63 from friction block 46 disengagements thus, and the friction of disengaging and wheel hub 45 is sealed.
Therefore wheel hub 45 (driven member 49) carries out rotatablely moving of a pulsed, wherein first actuator 47 is fitted on the circumference of driven member 49 during feeding transmission case 33 first stroke motions, and second actuator 48 is fitted on the circumference of driven member 49 when second stroke motion opposite with the first stroke motion direction of feeding transmission case 33, and the applying conversion of two actuators 47,48 is by 68 controls of control transmission mechanism.
Therefore axle 21 is implemented two equidirectional rotatablely moving of directly being connected mutually in each needle tracking forms circulation, and they are summed into a pulsed respectively and rotatablely move.Be connected because axle 21 drives with following feed dog 19, be directly delivered on the feed dog so pulsed rotatablely moves.Also be delivered to simultaneously on the axle 15 of feed dog for pulsed is rotatablely moved, adorn a toothed belt wheel 73 on axle 21, it is in transmission connection with axle 15 by a cog belt 74 and a corresponding wheel 75.
Because both can adjust the size that pull bar 36,37 moves with link rod needle gage adjuster, can adjust direction again, so can adjust the direction and/or the size of the feed motion that changes two feed dogs 17,19 in other words simultaneously simultaneously with the handle of link rod needle gage adjuster.
In order in the Sewing machines of band pin transport, when operating the handle of link rod needle gage adjuster 27, also to adjust the feed motion of pin 7 simultaneously together, the crank 31 (Fig. 3) that is contained on the axle 32 has other one arm 76, it makes the swinging axle 14 of pin transport produce oscillating motions by a guide rod 77 and the appropriate drive jockey 78 that is arranged on its back, and the motion of they and feed dog 17,19 not only had been complementary in size but also aspect the phase place.
Claims (9)
1. the feed arrangement that is used for Sewing machines has and/or last feed dog, and feed dog contacts with sewing product during operation all the time, also has
One first actuator (47) and one second actuator (48), these two actuators can be chimeric sealedly with a driven member (49) friction, described driven member can be rotatably connected with feed dog (17 or 19), wherein actuator (47,48) can move in this wise with respect to driven member (49), make that described first actuator (47) is chimeric with the circumference of driven member (49) when one first stroke motion, and when one second stroke motion opposite with the first stroke motion direction circumference of described second actuator (48) and driven member (49) chimeric and
One is in main shaft (5) and drives the feeding transmission case (33) be connected, this feeding transmission case is connected with first actuator (47), so that produce the oscillating motion of first actuator (47) around the axle of driven member (49), this feeding transmission case also is connected with second actuator (48), so that produce second actuator around driven member (49) the axle oscillating motion and
One is used for first support (55) of one first hold-down mechanism (51), so that first actuator (47) chimeric and disengaging with driven member (49); One is used for second support (58) of one second hold-down mechanism (52), so that second actuator (48) chimeric and disengaging with driven member (49), the motion of second support and first support (55) is connected, wherein at least one support (58) can with respect to hold-down mechanism (52) relative motion of supporting by its and
One acts on the spring (63) on two supports (55,58) so that two hold-down mechanisms (51,52) with separately under actuator (55,58) confining force sealed be connected and
One is in main shaft (5) and drives the control transmission mechanism (68) that is used for making support (55,58) swing is connected, so that each hold-down mechanism (51,52) and affiliated actuator (47,48) are alternately chimeric.
2. by the feed arrangement of claim 1, it is characterized by: one of hold-down mechanism is by first-class armed lever (61) supporting, and these armed levers are connected pivotally with the support that is equipped on this hold-down mechanism (52) (58).
3. press the feed arrangement of claim 2, it is characterized by: wait armed lever (61) to make double-arm, hold-down mechanism (52) is installed in the one end thereof zone, and an end of a connector (66) acts on its other end, and the other end of connector is hinged on the support (55).
4. by claim 2 and 3 feed arrangement, it is characterized by: hold-down mechanism (52) center is equivalent to armed lever such as grade (61) to the distance that waits armed lever (61) at the pin joint on the support (58) (tenon axle 59) and is waiting distance between the pin joint (tenon axle 65) on the armed lever (61) at the pin joint on the support (58) (tenon axle 59) and connector (66).
5. by one of aforesaid right requirement or multinomial feed arrangement, it is characterized by: the application point between hold-down mechanism (51,52) and the actuator (47,48) is positioned at one to be passed through on the straight line at center of driven member (49).
6. by one of aforesaid right requirement item or multinomial feed arrangement, it is characterized by: hold-down mechanism (51,52) is made of roller.
7. by one of aforesaid right requirement or multinomial feed arrangement, it is characterized by: spring (63) acts in the free end zone of support (55) and in the end regions of armed lever such as grade (61).
8. by one of aforesaid right requirement item or multinomial feed arrangement, it is characterized by: control transmission mechanism (68) comprises one four hinge transmission mechanism, its eccentric wheel (71) is in to drive with main shaft (5) and is connected, its rocking arm is made of support (58), its medium-height trestle (58) and etc. between the armed lever (61) and the distribution that is parallel to each other of the jointed shaft between the connector (66) of support (55) and four hinge transmission mechanisms.
9. by the feed arrangement of claim 1, it is used to have the Sewing machines of a pin transport, it is characterized by: its swinging axle (14) is hinged on the one arm (76) of a crank (31), and pull bar (36,37) acts on its other one arm (34).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002110522 DE10210522B4 (en) | 2002-03-07 | 2002-03-07 | Feed device for a sewing machine |
| DE10210522.7 | 2002-03-07 | ||
| PCT/EP2003/000767 WO2003074773A1 (en) | 2002-03-07 | 2003-01-26 | Forward feed device for a sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1639407A true CN1639407A (en) | 2005-07-13 |
| CN1639407B CN1639407B (en) | 2010-12-29 |
Family
ID=27771152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN03805266.0A Expired - Fee Related CN1639407B (en) | 2002-03-07 | 2003-01-26 | Forward feed device for a sewing machine |
Country Status (7)
| Country | Link |
|---|---|
| CN (1) | CN1639407B (en) |
| AU (1) | AU2003248975A1 (en) |
| BR (1) | BR0308209A (en) |
| DE (1) | DE10210522B4 (en) |
| MX (1) | MXPA04008663A (en) |
| TW (1) | TWI295700B (en) |
| WO (1) | WO2003074773A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187114B (en) * | 2006-11-21 | 2011-12-07 | Ykk株式会社 | Curved edge sewing systems |
| CN103668798A (en) * | 2013-12-19 | 2014-03-26 | 吴江市菀坪宝得利缝制设备机械厂 | Vertical feeding mechanism of sewing machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6679158B2 (en) | 2015-10-30 | 2020-04-15 | 蛇の目ミシン工業株式会社 | Feed dog adjusting mechanism and sewing machine equipped with the adjusting mechanism |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1175971B (en) * | 1961-05-25 | 1964-08-13 | Pfaff Ag G M | Sewing machine with needle swinging in the feed direction and lower and / or upper feed wheel driven synchronously with the needle feed movement |
| DE2223202C2 (en) * | 1972-05-12 | 1983-01-13 | Hans-Günther Ing.(grad.) 7520 Bruchsal Tölle | sewing machine |
| CN1025355C (en) * | 1991-06-26 | 1994-07-06 | 美马缝纫机制造股份有限公司 | Deliver device of machine |
| DE19812913C2 (en) * | 1998-03-24 | 2000-04-27 | Minerva Boskovice A S | Feed device for a sewing machine |
| DE19812979C1 (en) * | 1998-03-24 | 1999-08-26 | Duerkopp Adler Ag | Sewing machine fabric advance mechanism |
-
2002
- 2002-03-07 DE DE2002110522 patent/DE10210522B4/en not_active Expired - Fee Related
-
2003
- 2003-01-26 AU AU2003248975A patent/AU2003248975A1/en not_active Abandoned
- 2003-01-26 CN CN03805266.0A patent/CN1639407B/en not_active Expired - Fee Related
- 2003-01-26 WO PCT/EP2003/000767 patent/WO2003074773A1/en not_active Application Discontinuation
- 2003-01-26 MX MXPA04008663A patent/MXPA04008663A/en unknown
- 2003-01-26 BR BR0308209-1A patent/BR0308209A/en not_active Application Discontinuation
- 2003-02-19 TW TW92103392A patent/TWI295700B/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187114B (en) * | 2006-11-21 | 2011-12-07 | Ykk株式会社 | Curved edge sewing systems |
| CN103668798A (en) * | 2013-12-19 | 2014-03-26 | 吴江市菀坪宝得利缝制设备机械厂 | Vertical feeding mechanism of sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1639407B (en) | 2010-12-29 |
| WO2003074773A1 (en) | 2003-09-12 |
| MXPA04008663A (en) | 2004-12-06 |
| AU2003248975A1 (en) | 2003-09-16 |
| TW200303948A (en) | 2003-09-16 |
| TWI295700B (en) | 2008-04-11 |
| BR0308209A (en) | 2004-12-21 |
| DE10210522A1 (en) | 2003-10-02 |
| DE10210522B4 (en) | 2004-03-25 |
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