CN1170093A - Adjusting device of eccentricity of eccentric wheel apparatus - Google Patents
Adjusting device of eccentricity of eccentric wheel apparatus Download PDFInfo
- Publication number
- CN1170093A CN1170093A CN 97113517 CN97113517A CN1170093A CN 1170093 A CN1170093 A CN 1170093A CN 97113517 CN97113517 CN 97113517 CN 97113517 A CN97113517 A CN 97113517A CN 1170093 A CN1170093 A CN 1170093A
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- eccentric cam
- mentioned
- cam member
- eccentric
- main shaft
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Abstract
The present invention provides an eccentric quantity adjustor in an eccenter device, which is characterized in simple structure, excellent durability and easy adjustment. The eccentric quantity adjustor is provided with a first eccentric cam component (2), a second eccentric cam component (3), a braking body (10), a torsional spring (13) and a manual operation body (17), wherein, the first eccentric cam component (2) is firmly inserted into a main shaft (1) to form a first eccentric cam (2a) and a fastening wheel (2b), the second eccentric cam component (3) is untightly embedded in the first eccentric cam (2a) of the first eccentric cam component (2) to form a second eccentric cam (3b) and a flange part (3c) and form a groove (3e) on one side of the flange part (3c), the braking body (10) forms a fastening part (10a) which can be slidingly embedded into the groove (3e) of the second eccentric cam component (3) and combined with the fastening wheel (2b), the torsional spring (13) can spring the braking body (10) to one direction and combine the fastening part (10a) with the fastening wheel (2b), and the manual operation body (17) can overcome the elasticity of the torsional spring (13) to separate the fastening part (10a) from the fastening wheel (2b), and fix the second eccentric cam component (3). The eccentric quantity can be adjusted by the simple structure.
Description
The present invention relates to the adjusting device of eccentricity in the eccentric wheel apparatus, particularly the sort of change the 1st eccentric cam and the relative rotary position of the 2nd eccentric cam concern the adjusting device of eccentricity of the amount of movement of regulating driven member.
In the past in for example locking machines such as sewing machine, the amount of movement for the fore-and-aft direction of regulating the feed dog downside that is arranged on the cloth presser feet, that can move along fore-and-aft direction is all connecting the offset regulating device.Adjusting device of eccentricity is eccentric revolution by the revolution of main shaft, and this eccentric revolution is delivered to as the bar of driven member bar is moved, the moving by passing to feed dog as the sending handle to of transfer mechanism of bar.Wherein, in case by adjusting device of eccentricity offset is changed, just can regulate the amount of movement of the fore-and-aft direction of feed dog.
This adjusting device of eccentricity in the past utilizes eccentric cam mechanism, in the ratchet-type device as shown in Figure 4, the 1st eccentric cam 20 at main shaft (not having expression among the figure) unoccupied place, upstream setting-in, being tightened on the main shaft with the concentric ratchet 21 of main shaft, make it be integral revolution with main shaft, with ratchet brake component 22 the 1st eccentric cam 20 and ratchet 21 are fastened chimericly, the 1st eccentric cam 20 can be turned round along equidirectional with main shaft.The circumference of lip part 23 is provided with the 2nd eccentric cam 25 outer being embedded on the 1st eccentric cam 20 of ditch portion 24.Eccentric guide member 26 is tightened on the main shaft, makes it be integral revolution with main shaft, the ditch portion 24 that can fasten rotationally on the circumference of the pin on the side of eccentric cam 26 27 and the flange 23 that is arranged on the 2nd eccentric cam 25 combines.To be embedded on the 2nd eccentric cam 25 as one of bar 28 of driven member end is outer, the other end of barre be arranged on the handle of sending on the axle (among the figure do not have expression) (not having expression among the figure) of sending to and be connected, this is sent axle to and can be bearing in rotationally on the sewing machine frame (not having expression among the figure).Make thus and send axle to and swing in linkage with main shaft.Like this, the revolution by main shaft just makes feed dog move along fore-and-aft direction.
In order to regulate the offset of eccentric wheel apparatus, on the 1st eccentric cam 20, be provided with embedded grooves 30, it is to push and fasten chimeric with it by the control knob 29 that will be contained on the sewing machine frame (there be not expression among the figure), be integral the ground order for the rotation of fastening the 1st eccentric cam 20 of will be slew constrained living by control knob 29 chimeric by ratchet 21 and eccentric guide member 26 and main shaft, the 2nd eccentric cam 25 synchronously rotated, also change is with respect to the offset of main shaft.The amount of movement of the fore-and-aft direction of feed dog is changed.
In addition, as shown in Figure 5, in spring pressure type structure, at main shaft (among the figure do not have expression) unoccupied place, upstream setting-in and to be provided with elliptical aperture and, on axle 40, can to support cubic block 42 rotationally along the slide member 41 of the axle 40 of major axes orientation.The ditch guide member 43 that can support slide member 41 slidably is screwed into the on the main shaft.Recess 44 is being set on the periphery of ditch guide member 43, and lip part 45 is being set on the side.The eccentric adjustment cam 46 that the side is provided with eccentric ditch cam play rotationally is entrenched on the lip part 45 of ditch guide member 43.Stopping wheel 47 and main shaft are fastened, packing ring 48 is inserted on the main shaft,, ripple spring 49 play are inlaid between eccentric adjustment cam 46 and the packing ring 48 for eccentric adjustment cam 46 being held in axially.And, in order to eliminate rocking of slide member 41 and ditch guide member 43, pin 50 is inserted from the periphery of ditch guide member 43, with leaf spring 51 pushing pins 50.Four directions block 42 can be subjected to recess 44 guidings of ditch guide member 43 slidably, and the ditch cam 52 of eccentric adjustment cam 46 can be guided again slidably.
It is to carry out the chimeric embedded grooves of fastening 54 because the control knob 53 that is contained on the sewing machine frame (not having expression among the figure) by pushing is being set on eccentric wheel adjustment cam 46 that the offset of eccentric wheel apparatus is regulated, and turns round with main shaft with respect to eccentric adjustment cam 46, ditch guide member 43 it is slew constrained by chimeric the fastening of control knob 53 with being integral; Because cubic block 42 slides on the ditch cam 52 of eccentric adjustment cam 46, the slide member 41 that is bearing on the ditch guide member 43 is slided, thereby make the relative main shaft of offset and change.
But, these adjusting device of eccentricity in above-mentioned eccentric wheel apparatus, the structure of ratchet-type is complicated, and part number is many.Owing in chimeric, be easy to generate vestige, therefore the problem of durability variation arranged.And the spring pressure type because to regulate moment of torsion bigger, thereby concerning the more weak operator of muscle power, the problem that is difficult to regulate is arranged.
The present invention makes in order to address the above problem, and its objective is the adjusting device of eccentricity in the eccentric wheel apparatus that a kind of simple in structure, superior durability is provided and can easily regulates offset.
The adjusting device of eccentricity of making to achieve the above object, it is that to be provided with can be that rotating main shaft is carried out at the center with the axle center, be provided with relatively the axle center of this main shaft and carry out rotating the 1st eccentric cam member of off-centre, be provided with the axle center of this main shaft relatively and carry out eccentric revolution and can be pivotally and the 2nd eccentric cam member of chimeric the 2nd eccentric cam of the 1st eccentric cam play, the driven member that is connected with either party of the 1st eccentric cam member or the 2nd eccentric cam member, be the amount of movement of driven member is synthetic with the 1st eccentric cam and the 2nd eccentric cam, and the amount of movement of driven member is changed by the relative position that changes the 1st eccentric cam and the 2nd eccentric cam, it is characterized in that: it is the 1st eccentric cam member to be inserted build-in fix on the main shaft, and is being provided with and fastens wheel; The 2nd eccentric cam member play is entrenched on the 1st eccentric cam, and the 2nd above-mentioned eccentric cam member is provided with lip part and forms chase in a side of this lip part; Brake body, this brake body can be set in the chase of above-mentioned the 2nd eccentric cam member slidably to be provided with and can to fasten the portion that fastens that wheel combines with above-mentioned; Be provided with above-mentioned brake body bullet is fastened portion and fastened combining of wheel so that keep above-mentioned to the elastic mechanism of a certain direction; The elastic force that overcomes above-mentioned elastic mechanism is being set and will fastens portion and fasten the combining of wheel and remove and stop the manually-operable body of being fixed pivotally of the 2nd eccentric cam member.
The preferably above-mentioned wheel of fastening of another one most preferred embodiment of the present invention forms with one heart with above-mentioned the 1st eccentric cam.
Another most preferred embodiment of the present invention preferably is provided with 1 pair the 1st shotpin highlightedly on above-mentioned the 1st eccentric cam member, 1 couple the 2nd shotpin that can collide with the 1st shotpin is set on above-mentioned the 2nd eccentric cam member highlightedly, stoping by above-mentioned manually-operable body under the rotating state of the 2nd eccentric cam member, above-mentioned the 1st eccentric cam is to carry out rotating with respect to the 2nd eccentric cam in the 1st shotpin is run into the scope of the 2nd shotpin.
Fig. 1 is the side view of eccentric wheel apparatus of the present invention,
Fig. 2 is the sectional view of eccentric wheel apparatus of the present invention,
Fig. 3 is the exploded perspective view of eccentric wheel apparatus of the present invention,
Fig. 4 is the exploded perspective view of the eccentric wheel apparatus of prior art,
Fig. 5 is the exploded perspective view of the eccentric wheel apparatus of prior art.
Below, an embodiment who the present invention is made specificly the quantity regulating device of ceasing to be faithful in the eccentric wheel apparatus of sewing machine is described with reference to accompanying drawing.
As shown in Figure 1, 2, 3, on sewing machine frame (not having expression among the figure), can support main shaft 1 rotationally, tighten the 1st eccentric cam member 2 that is inlaid on the main shaft 1 with screw thread, off-centre at a side and the 1st eccentric cam 2a is integrally formed lip part with one heart, and on its periphery, form and fasten wheel 2b, 2 shotpin 2c that to have axle center with main shaft 1 be the center, vertically be provided with highlightedly.
The 2nd eccentric cam member of at the unoccupied place, the 1st eccentric cam 2a upstream of the 1st eccentric cam member 2 setting-in 3, be provided with the 2nd eccentric cam 3b, be integrally formed lip part 3c in a side at opposite side, lip part 3c forms ditch 3d on its circumference, and chase 3e is being set, and has the pin 3f that is provided with highlightedly vertically on the side.As shown in Figure 1, the 2nd eccentric cam 3b is in the position of the outer circumferential face that surrounds the 1st eccentric cam 2a, just can adjust the base position of conduct with respect to the bar 14 of the driven member in the axle center of main shaft 1 by the relative rotary position of adjusting the 1st, the 2nd eccentric cam 2a, 3b.And, the 1st eccentric cam member 2 can rotate in the above-mentioned 2 shotpin 2c that are provided with highlightedly run into the scope of pin 3f of the 2nd eccentric cam member 3.Can be slidably the 10a of the portion that fastens that wheel 2b is meshed that fastens with the 1st eccentric cam member 2 be set with a side of the brake body 10 of the chase 3e interlocking of the 2nd eccentric cam member 3.
This brake body 10 is by the 1st eccentric cam member 2 and 3 clampings of the 2nd eccentric cam member, by flexibly being pressed on the 1st eccentric cam member 2 as the torsion spring 13 that suppresses mechanism, and this suppresses mechanism by being tightened in rest pin 12 supportings on the 2nd eccentric cam member 3 sides.
Promptly, brake body 10 is to be entrenched in the chase 3e that is provided with on its side with respect to the 2nd eccentric cam 3, be configured to can slide along Fig. 1 or edge A direction shown in Figure 3, the opposite direction of edge A with respect to the 2nd eccentric cam 3.And, by the elastic force effect of torsion spring 13, at brake body 10 when edge A direction moves, the radially inner side end of the 10a of the portion that fastens of brake body 10 is pushed and is fastened with it the outer circumferential face of fastening wheel 2b of the 1st eccentric cam member 2, thus, by brake body 10 the 1st eccentric cam member 2 and the 2nd eccentric cam member 3 are turned round with being integral.
Usually, the 10a of the portion that fastens that fastens wheel 2b and brake body 10 of the 1st eccentric cam member 2 meshes, by brake body the 10, the 1st eccentric cam member 2 the 2nd eccentric cam member 3 is held in and can turns round with main shaft 1 with being integral.One end of bar 14 is can be pivotally outer to be embedded on the 2nd eccentric cam member 3, and bar 14 the other ends are connected with the handle of fix on the axle 15 16 of sending to of sending on being bearing in frame (not having expression among the figure) rotationally, can make send to spools 15 and main shaft 1 swing in linkage.
In addition, manually-operable body 17 can reciprocatingly be bearing in along the direction with main shaft 1 quadrature on the above-mentioned frame, usual, the front end and the disengaging of above-mentioned eccentric wheel apparatus that make it by the effect of helical spring 18.And make when the elastic force that overcomes helical spring 18, pushing manually-operable body 17, the front end of manually-operable body 17 can collide with the other end 10b of brake body 10 along the direction pushing brake body 10 of edge A, and, the front end of manually-operable body 17 can be with the 2nd inclined to one side, the ditch 3d of cardiac prominence wheel member 3 combines.
In above-mentioned structure, carry out under the occasion of offset adjustment, overcome the elastic force pushing manually-operable body 17 of helical spring 18.So, because the front end of manually-operable body 17 combines with the ditch 3d of the 2nd eccentric cam member 3, thereby stoped freely turning round of the 2nd eccentric cam member 3.
Because when pushing manually-operable body 17, its front end meanwhile pushes the other end 10b of brake body 10, thereby elastic force opposite direction along edge A in chase 3e that brake body 10 overcomes torsion spring 13 moves slidably, makes to fasten the 10a of portion and fasten wheel 2b and break away from.Like this, the 1st eccentric cam member 2 just becomes relative the 2nd eccentric cam member 3 free rotating states of energy.
In this state; When for example when manually making main shaft 1 revolution, be fixed on the 1st just revolution of eccentric cam member 2 on the main shaft 1.This revolution is subjected to the effect of manually-operable body 17, can proceed to the scope that the shotpin 3f of shotpin 2c and the 2nd eccentric cam member 3 that can not fix pivotally collides.Its result just can carry out the position adjustment of relative the 2nd eccentric cam 3b of the 1st eccentric cam 2a as shown in Figure 1 and Figure 2, can change the position with respect to the bar 14 in the axle center of main shaft 1.
Moreover the shotpin 2c of the shotpin 3f of the 2nd eccentric cam member 3 and the 1st eccentric cam member 2 has stipulated the scope that relatively rotates of the 1st, the 2nd eccentric cam 2a, 3b, and this scope that relatively rotates suitably determines according to purpose.Promptly, under the occasion that above-mentioned adjusting device of eccentricity is used in the locking sewing machine, the 1st, the 2nd eccentric cam 2a, 3b is assembled together and with off-centre when synthetic, come from more following purposes, promptly, get rid of those and can cause that the fore-and-aft direction with feed dog moves the irrelevant assembling of moving, take the synchronous purpose that moves with sewing needle, specifically, be to be controlled to feed dog when outstanding, sewing needle always is positioned at top, the purpose that is fractureed to prevent sewing needle and feed dog from clashing, decision shotpin 2c is the fixed position on the 2nd eccentric cam member 3f in fixed position on the 1st eccentric cam member 2 and decision shotpin 3f.In the above-described embodiments, the position of shotpin 2c, 3f be configured to the 1st eccentric cam 2a can be with respect to the 2nd eccentric cam 3b respectively to right-hand rotation, turn round each about 45 degree left.
Though the adjusting device of eccentricity of the foregoing description is the amount of movement of fore-and-aft direction that is used for regulating the feed dog of locking sewing machine, its purposes is not limited to lock sewing machine, and several is will regulate to move or a cutting device of stroke can both be suitable for.
Seen from the above description, the present invention's adjusting device of eccentricity claimed in claim 1 and former structure phase Ratio can make the simple in structure of Eccentric earn mechamism, can reduce number of components, and the chimeric trace that accompanies with it is given birth in difficult labour Mark, superior durability. And it is little to regulate moment of torsion, thereby just regulates easily.
And in the adjusting device of eccentricity claimed in claim 2, by concentric with the off-centre of the 1st eccentric cam 2a Ground forms fastens wheel 2b, offset is carried out after changing, the 10a of the section that fastens of a side of brake body 10 is just normal Can and with the 1st eccentric cam 2a be integrally formed fasten the wheel 2b fasten.
In addition, in the adjusting device of eccentricity claimed in claim 3, be in resistance by the effect of manual operation body End under the rotating state of the 2nd eccentric cam member, because the 1st eccentric cam can be with respect to the 2nd eccentric cam one Straight gyrus forwards the scope that the 1st banking pin and the 2nd banking pin are collided to, thereby by suitably setting the fixing of banking pin The position just can be adjusted to desired offset.
Claims (3)
1, adjusting device of eccentricity, it is that to be provided with can be that rotating main shaft is carried out at the center with the axle center, be provided with relatively the axle center of this main shaft and carry out rotating the 1st eccentric cam member of off-centre, be provided with the axle center of this main shaft relatively and carry out eccentric revolution and can be pivotally and the 2nd eccentric cam member of chimeric the 2nd eccentric cam of the 1st eccentric cam play, the driven member that is connected with either party of the 1st eccentric cam member or the 2nd eccentric cam member, be the amount of movement of driven member is synthetic with the 1st eccentric cam and the 2nd eccentric cam, and the amount of movement of driven member is changed by the relative position that changes the 1st eccentric cam and the 2nd eccentric cam, it is characterized in that: it is the 1st eccentric cam member to be inserted build-in fix on the main shaft, and is being provided with and fastens wheel; The 2nd eccentric cam member play is entrenched on the 1st eccentric cam, and the 2nd above-mentioned eccentric cam member is provided with lip part and forms chase in a side of this lip part; Brake body, this brake body can be set in the chase of above-mentioned the 2nd eccentric cam member slidably to be provided with and can to fasten the portion that fastens that wheel combines with above-mentioned; Be provided with above-mentioned brake body bullet is fastened portion and fastened combining of wheel so that keep above-mentioned to the elastic mechanism of a certain direction; The elastic force that overcomes above-mentioned elastic mechanism is being set and will fastens portion and fasten the combining of wheel and remove and stop the manually-operable body of being fixed pivotally of the 2nd eccentric cam member.
2, adjusting device of eccentricity as claimed in claim 1 is characterized in that: the above-mentioned wheel of fastening forms with one heart with above-mentioned the 1st eccentric cam.
3, adjusting device of eccentricity as claimed in claim 1 or 2, it is characterized in that: on above-mentioned the 1st eccentric cam member, 1 pair the 1st shotpin is set highlightedly, 1 couple the 2nd shotpin that can collide with the 1st shotpin is set on above-mentioned the 2nd eccentric cam member highlightedly, stoping by above-mentioned manually-operable body under the rotating state of the 2nd eccentric cam member, above-mentioned the 1st eccentric cam is to carry out rotating with respect to the 2nd eccentric cam in the 1st shotpin is run into the scope of the 2nd shotpin.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP117458/96 | 1996-05-13 | ||
| JP11745896A JP3276843B2 (en) | 1996-05-13 | 1996-05-13 | Eccentricity adjustment device for eccentric wheel device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1170093A true CN1170093A (en) | 1998-01-14 |
| CN1093924C CN1093924C (en) | 2002-11-06 |
Family
ID=14712177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97113517A Expired - Fee Related CN1093924C (en) | 1996-05-13 | 1997-05-13 | Adjusting device of eccentricity of eccentric wheel apparatus |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3276843B2 (en) |
| CN (1) | CN1093924C (en) |
| TW (1) | TW378260B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366927C (en) * | 2003-12-23 | 2008-02-06 | 明基电通股份有限公司 | Eccentric wheel with low starting torque force |
| CN101230902B (en) * | 2007-01-25 | 2012-11-21 | 津田驹工业株式会社 | Drive-amount changing mechanism in crank-type driver |
| CN103132214A (en) * | 2013-03-19 | 2013-06-05 | 无锡精业丝普兰科技股份有限公司 | Electronic adjustment mechanism of stable quality of air jet loom |
| CN103374794A (en) * | 2012-04-20 | 2013-10-30 | Juki株式会社 | Cloth feeding mechanism of sewing machine |
| CN105526325A (en) * | 2014-10-15 | 2016-04-27 | 津田驹工业株式会社 | Drive-amount changing mechanism for crank driving apparatus |
| CN107099938A (en) * | 2017-04-28 | 2017-08-29 | 杰克缝纫机股份有限公司 | A kind of simple needle gage governor motion of sewing machine and sewing machine |
| CN107761271A (en) * | 2017-11-22 | 2018-03-06 | 杰克缝纫机股份有限公司 | A kind of sewing machine and its take-up eccentric |
| CN109750422A (en) * | 2019-03-15 | 2019-05-14 | 杰克缝纫机股份有限公司 | The cloth feeding mechanism and sewing machine of sewing machine |
| CN109778436A (en) * | 2019-03-15 | 2019-05-21 | 杰克缝纫机股份有限公司 | Work feed control mechanism, sewing machine and the work feed control method of sewing machine |
| CN111020891A (en) * | 2019-11-25 | 2020-04-17 | 杰克缝纫机股份有限公司 | Sewing machine, feeding switching device, feeding switching control system and control method |
| CN111850845A (en) * | 2019-04-24 | 2020-10-30 | 杰克缝纫机股份有限公司 | Sewing machine |
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| CN102808910B (en) * | 2012-08-20 | 2014-11-19 | 福建凯诺机电科技有限公司 | Variable-pitch eccentric shaft pair |
| CN108842311A (en) * | 2018-07-11 | 2018-11-20 | 杰克缝纫机股份有限公司 | A kind of sewing machine and its feed device |
| JP7262323B2 (en) * | 2019-06-24 | 2023-04-21 | Juki株式会社 | Sewing machine and adjustment method |
| CN110485066B (en) * | 2019-09-12 | 2021-11-30 | 杰克缝纫机股份有限公司 | Cloth feeding adjusting mechanism of sewing machine and sewing machine |
| CN112853633B (en) * | 2019-11-28 | 2022-07-05 | 杰克科技股份有限公司 | Feed lifting mechanism with adjustable feed lifting height and flat seaming machine |
| CN112386439B (en) * | 2020-10-26 | 2022-09-23 | 武义盘顺智能科技有限公司 | Rhythm machine |
-
1996
- 1996-05-13 JP JP11745896A patent/JP3276843B2/en not_active Expired - Fee Related
-
1997
- 1997-04-22 TW TW86105216A patent/TW378260B/en not_active IP Right Cessation
- 1997-05-13 CN CN97113517A patent/CN1093924C/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366927C (en) * | 2003-12-23 | 2008-02-06 | 明基电通股份有限公司 | Eccentric wheel with low starting torque force |
| CN101230902B (en) * | 2007-01-25 | 2012-11-21 | 津田驹工业株式会社 | Drive-amount changing mechanism in crank-type driver |
| CN103374794B (en) * | 2012-04-20 | 2017-05-10 | Juki株式会社 | cloth feeding mechanism of sewing machine |
| CN103374794A (en) * | 2012-04-20 | 2013-10-30 | Juki株式会社 | Cloth feeding mechanism of sewing machine |
| CN103132214A (en) * | 2013-03-19 | 2013-06-05 | 无锡精业丝普兰科技股份有限公司 | Electronic adjustment mechanism of stable quality of air jet loom |
| CN105526325B (en) * | 2014-10-15 | 2019-04-02 | 津田驹工业株式会社 | The crank-type driver for having driving amount changing mechanism |
| CN105526325A (en) * | 2014-10-15 | 2016-04-27 | 津田驹工业株式会社 | Drive-amount changing mechanism for crank driving apparatus |
| CN107099938A (en) * | 2017-04-28 | 2017-08-29 | 杰克缝纫机股份有限公司 | A kind of simple needle gage governor motion of sewing machine and sewing machine |
| CN107099938B (en) * | 2017-04-28 | 2019-06-04 | 杰克缝纫机股份有限公司 | A kind of simple needle gage regulating mechanism of sewing machine and sewing machine |
| CN107761271A (en) * | 2017-11-22 | 2018-03-06 | 杰克缝纫机股份有限公司 | A kind of sewing machine and its take-up eccentric |
| CN107761271B (en) * | 2017-11-22 | 2020-10-27 | 杰克缝纫机股份有限公司 | Sewing machine and take-up eccentric device thereof |
| CN109750422A (en) * | 2019-03-15 | 2019-05-14 | 杰克缝纫机股份有限公司 | The cloth feeding mechanism and sewing machine of sewing machine |
| CN109778436A (en) * | 2019-03-15 | 2019-05-21 | 杰克缝纫机股份有限公司 | Work feed control mechanism, sewing machine and the work feed control method of sewing machine |
| CN109778436B (en) * | 2019-03-15 | 2021-02-05 | 杰克缝纫机股份有限公司 | Cloth feeding control mechanism of sewing machine, sewing machine and cloth feeding control method |
| CN111850845A (en) * | 2019-04-24 | 2020-10-30 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN111020891A (en) * | 2019-11-25 | 2020-04-17 | 杰克缝纫机股份有限公司 | Sewing machine, feeding switching device, feeding switching control system and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3276843B2 (en) | 2002-04-22 |
| TW378260B (en) | 2000-01-01 |
| JPH09303370A (en) | 1997-11-25 |
| CN1093924C (en) | 2002-11-06 |
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