CN101736536B - Shuttle driving device of sewing machine - Google Patents
Shuttle driving device of sewing machine Download PDFInfo
- Publication number
- CN101736536B CN101736536B CN 200910175009 CN200910175009A CN101736536B CN 101736536 B CN101736536 B CN 101736536B CN 200910175009 CN200910175009 CN 200910175009 CN 200910175009 A CN200910175009 A CN 200910175009A CN 101736536 B CN101736536 B CN 101736536B
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- shuttle
- shaft
- lower shaft
- seat
- driven
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Abstract
The present invention relates to shuttle driving device of a sewing machine, wherein the arrangement space of two shuttles is adjusted through moving a shuttle seat. A shuttle driving shaft of the shuttle seat and a lower shaft in a base are sustained to a transmission state in the moving range of the shuttle seat. The shuttle seat is a small component configured in the base. An operator can easily adjust the arrangement space through moving the shuttle seat. The shuttle seat moves at a state when the connection between the shuttle driving shaft and the lower shaft is sustained. An operator can adjust the arrangement space of two shuttles at a state that the rotation positions of shuttles are unchanged.
Description
Technical field
The present invention relates to a kind of shuttle driving device that has the Sewing machines of two shuttles in base inside.
Background technology
Two-needle sewing machine comprises two eedles and two shuttles.Two eedles are arranged at the leading section of horn.Two shuttles are arranged at base inside.Two eedles rise under the driving of upper axle and descend.Two shuttle rising and declines with eedle next by the driving of lower shaft are synchronously rotated.Two-needle sewing machine comes side by side at the stitching of processing the two bar lines of cloth formation by the rising of two eedles and the rotation of decline and two shuttles.Two eedles are along the axially-aligned configuration of the upper axle of horn inside.Two shuttles are along the axially-aligned configuration of the lower shaft of horn inside.The interval of the stitching of two bar lines can be by regulating two eedles the interval and the interval of two shuttles change.
In clear and 60 years (1985) two-needle sewing machine of putting down in writing for No. 97580, two shuttles are individually fixed in an end of each shuttle axle at Japanese Patent Publication utility model communique, and an end of this each shuttle axle rotatably is supported in respectively on each shuttle seat.The shuttle axle has driven gear, and this driven gear is fixed in the other end of shuttle axle.Driven gear is engaged on the driven wheel, and this driven wheel is installed on the lower shaft.
Driven wheel can move along lower shaft.Driven wheel can be fixed on the lower shaft with suitable shift position.The shuttle seat can moving axially along lower shaft.The shuttle seat can be fixed on the base with suitable position.
When the interval of the stitching of the two bar lines of change, operating personnel regulate first the arrangement pitch of two eedles.Then, operating personnel's movable shuttle seat cooperates the arrangement pitch of two shuttles with the arrangement pitch of two eedles and regulates.The last operation personnel move driven wheel and make on its driven gear that is engaged in the shuttle axle.
Driven wheel is screwed on lower shaft.When mobile driven wheel, operating personnel remove the fixing of driven wheel by unscrewing screw, then are engaged on the position of driven gear at driven wheel, tighten screw and fix.Driven wheel is sometimes during the movement of removing after fixing, in upwards dislocation of week.Therefore, operating personnel need to regulate the engagement of driven wheel and driven gear exactly when being fixed in driven wheel on the lower shaft.The shuttle axle that is fixed with driven gear misplaces during mobile driven wheel sometimes.When the driven wheel of operating personnel after will moving is engaged in driven gear, need to confirm the position of rotation of shuttle.In clear and 60 years (1985) two-needle sewing machine of putting down in writing for No. 97580, be difficult to regulate the arrangement pitch of two shuttles at Japanese Patent Publication utility model communique.
Japanese Patent Publication utility model communique is put down into the two-needle sewing machine of 6 years (1994) putting down in writing for No. 81481 and is had the shuttle unit seat in its chassis outer side.The shuttle unit seat is with the form setting relative with the front end face of base.The shuttle unit seat can move to the direction that approaches and the direction of leaving with respect to base.Shuttle unit seat supports the second shuttle axle and power transmission shaft.The second shuttle axle is connected gear mechanism to connect with power transmission shaft.Shuttle (i.e. the second Sewing machine shuttle) in two shuttles is installed on the second shuttle axle.Power transmission shaft is in the inner extension of base.Power transmission shaft is parallel with the lower shaft of base inside.The elongated end of power transmission shaft is connected with lower shaft with transmission mechanism.Transmission mechanism is the gear mechanism with the larger gear of the facewidth.
Another one shuttle (i.e. the first Sewing machine shuttle) is installed on the first shuttle axle, and this first shuttle axle is arranged at base inside.The first shuttle axle is connected with lower shaft with transmission mechanism.The first shuttle axle is parallel with the lower shaft of base inside.The transmission mechanism that the first shuttle axle is connected with lower shaft is the gear mechanism with the larger gear of the facewidth.
When the interval of the stitching of the two bar lines of change, operating personnel regulate first the arrangement pitch of two eedles.Then, operating personnel are at base medial movement the first shuttle axle, by at chassis outer side movable shuttle unit seat the arrangement pitch of two eedles of arrangement pitch cooperation of two shuttles (i.e. the first Sewing machine shuttle and the second Sewing machine shuttle) being regulated.Lower shaft drives the first shuttle axle and power transmission shaft by transmission mechanism.The first Sewing machine shuttle is rotated by the driving of the first shuttle axle.The second Sewing machine shuttle is rotated by the driving of power transmission shaft and the second shuttle axle.The facewidth of transmission mechanism is being kept engagement than gear wheel in the moving range of the first shuttle axle and shuttle unit seat.Therefore, operating personnel can be under the state of the not engagement of adjusting gear, the arrangement pitch of two shuttles of change.
When regulating the arrangement pitch of two shuttles, operating personnel's movable shuttle unit seat.The shuttle unit seat is to support the second shuttle axle and than the larger seat of long pass moving axis.The operating personnel that regulate the arrangement pitch of two shuttles need the position of the shuttle unit seat that change is larger bit by bit, have the problem of regulating operational difficulty.
Summary of the invention
The object of the present invention is to provide a kind of shuttle driving device of Sewing machines, the shuttle driving device of this Sewing machines can be easy to regulate the arrangement pitch of two shuttles.
The shuttle driving device of the Sewing machines of technical scheme 1 comprises: lower shaft, and this lower shaft is at the base internal rotating; Two shuttles, these two shuttles are along the axially-aligned of described lower shaft, and are rotated under the driving of described lower shaft; And two shuttle seats, these two shuttle seats support respectively described two shuttles; Described two shuttle seats can be with respect to described base moving axially along described lower shaft, and rotatably support respectively each shuttle axle and each shuttle driving shaft, described each shuttle is installed on respectively on described each shuttle axle, one end of described each shuttle driving shaft comes to be connected with described each shuttle axle respectively by gear mechanism, the other end of described each shuttle driving shaft comes to be connected with described lower shaft respectively by transmission mechanism, the other end of described each shuttle driving shaft extends to respectively described each shuttle seat outside, described transmission mechanism has the first rotary part, the second rotary part and rotation transmission member, described the first rotary part is fixed on the described lower shaft, and rotate integratedly with this lower shaft, described the second rotary part is fixed on the described shuttle driving shaft, and rotate integratedly with this shuttle driving shaft, described rotation transmission member can be in the moving range of described shuttle seat be delivered to described the second rotary part with the rotation of described the first rotary part.
Two shuttles are installed on respectively on two shuttle seats, and this shuttle seat is disposed at base inside.Operating personnel are by regulating the arrangement pitch of two shuttles at the inner movable shuttle seat of base.Two shuttle seats have respectively shuttle axle and shuttle driving shaft.Be installed on shuttle on the shuttle axle by being rotated by the driving of the shuttle driving shaft of gear mechanism transmission.The shuttle driving shaft is connected with rotation transmission member to be connected with lower shaft by the first rotary part, the second rotary part.Rotation transmission member can be in the moving range of shuttle seat, and the rotation of the first rotary part is delivered to the second rotary part.Operating personnel can come to regulate the arrangement pitch of two shuttles under the state of the position of rotation that does not change shuttle by the movable shuttle seat.
In the shuttle driving device of the Sewing machines of technical scheme 2, described the first rotary part is drive pulley, described the second rotary part is driven pulley, and described rotation transmission member is synchronous belt, and this synchronous belt volume is hung between described drive pulley and the described driven pulley.
The shuttle driving device of the Sewing machines of technical scheme 2 can be delivered to the shuttle driving shaft with the rotation of lower shaft with simple structure.If when lower shaft and shuttle driving shaft separate configuration, synchronous belt also can transmit rotation.Compare with gear mechanism, synchronous belt can suppress the generation of noise.
In the shuttle driving device of the Sewing machines of technical scheme 3, the length of the rotor shaft direction of described drive pulley or driven pulley is greater than the moving range of described shuttle seat.
Synchronous belt keeps rolling up the extension state by moving in the scope of the width of drive pulley or the width of driven pulley (being the axial length of lower shaft).The rotation of lower shaft is delivered to the shuttle driving shaft by synchronous belt.Shuttle each position in the moving range of shuttle seat rotates.
In the shuttle driving device of the Sewing machines of technical scheme 4, described driven pulley is disposed at the described shuttle seat outside.
Because driven pulley is disposed at the shuttle seat outside, therefore the miniaturization of shuttle seat is achieved.Can easily regulate by mobile stick shuttle seat the arrangement pitch of two shuttles.
In the shuttle driving device of the Sewing machines of technical scheme 5, described gear mechanism has driven wheel and driven gear, described driven wheel is fixed on the described shuttle driving shaft, described driven gear and the engagement of described driven wheel, and be fixed on the described shuttle axle, described driven wheel and driven gear all are bevel gears.
Bevel gear can be by along moving axially to change gear backlash.Operating personnel can by with the position of driven wheel along the axial adjustment of shuttle driving shaft or the position of driven gear is easily adjusted the gear backlash of driven wheel and driven gear along the axial adjustment of shuttle axle.
In the shuttle driving device of the Sewing machines of technical scheme 6, described driven wheel and described driven gear all are same shapes.
Because it is identical to form the shape of the driven wheel of bevel gear and driven gear, so its parts can use and have identical shaped general parts.
Description of drawings
Fig. 1 is the stereogram with two-needle sewing machine of shuttle driving mechanism of the present invention.
Fig. 2 is the upward view of two-needle sewing machine.
Fig. 3 is the stereogram of shuttle driving mechanism.
Fig. 4 is the front view of shuttle driving mechanism.
Fig. 5 is the top view of shuttle driving mechanism.
Fig. 6 is the front view of shuttle driving mechanism that the part of shuttle seat is represented with section.
Fig. 7 is the left side view of shuttle driving mechanism.
The specific embodiment
The present invention is described in detail below with reference to the accompanying drawing that represents better embodiment.Below the explanation in employed about, front and back and about direction in Fig. 1 to Fig. 7, represent with arrow.
As shown in Figure 1, two-needle sewing machine 10 comprises base 11, pillar 12 and horn 13.Base 11 has the smooth upper surface that extends in the horizontal direction.Pillar 12 is in the form setting of the right part of base 11 to erect upward.The base end part of the upper support horn 13 of pillar 12.Horn 13 extends to left with the form parallel with base 11.Horn 13 is section's supports main shaft (not shown) within it.Main shaft extends along left and right directions.Main shaft rotates by the driving of sewing machine electromotor (not shown).
Two-needle sewing machine 10 has shank 15 and thread take-up tension lever 16 at the leading section of its horn 13.The action of the thread take-up tension lever driving mechanism (not shown) of thread take-up tension lever 16 by being arranged at horn 13 inside swings at above-below direction.Shank 15 rises and descends by the action of the needle bar drive device (not shown) of horn 13 inside.Thread take-up tension lever driving mechanism and needle bar drive device drive by the main shaft of horn 13 inside.
Two-needle sewing machine 10 comprises two eedles 18,18.Eedle 18,18 is installed on the lower end of the outstanding shank 15 in horn 13 belows by eedle folder 17.Two eedles 18,18 on left and right directions side by side.Operating personnel change two eedles 18,18 arrangement pitch by changing eedle folder 17.
As shown in Figure 2, base 11 within it section have and drive two shuttles 21,21 shuttle driving mechanism.As shown in Figure 3, shuttle 21 has outer shuttle 23 and Nei Suo (not shown), and shuttle is contained in outer shuttle 23 inside in this.Outer shuttle 23 has spur 24, and this spur 24 extends along the periphery of outer shuttle 23.Outer shuttle 23 comes rotation centered by the shuttle axle 27 vertical with base 11 upper surfaces (with reference to Fig. 4, Fig. 6 and Fig. 7) by the driving of shuttle driving mechanism.
As shown in Figure 2, base 11 within it section have the lower shaft 25 that extends along left and right directions.Lower shaft 25 has the lower shaft pulley 31 that is wholely set with it in its right part.Lower shaft pulley 31 is connected with the main shaft that is arranged at horn 13 inside by synchronous belt (not shown).This synchronous belt passes pillar 12 inboards, and the rotation of main shaft is delivered to lower shaft 25.Lower shaft 25 rotates with the rotary synchronous ground of main shaft.
To shown in Figure 6, two shuttles 21,21 outer shuttle 23,23 are installed on respectively on two shuttle seats 26,26 of square shape such as Fig. 3.Two shuttle seats 26,26 are along axial (left and right directions) spread configuration of lower shaft 25 in the anterior position of lower shaft 25.Such as Fig. 2, Fig. 3 and shown in Figure 5, two shuttle seats 26,26 have the long slotted hole 37,37 of left and right directions at its front and rear respectively.Two shuttle seats 26,26 use respectively bolt 32,32 (with reference to Fig. 2) to be fixed on the base 11, and described bolt 32,32 passes respectively slotted hole 37,37.Two shuttle seats 26,26 can move along left and right directions in slotted hole 37,37 length range by unscrewing bolt 32,32 respectively. Shuttle seat 26,26 after the movement can 32,32 fix by tighting a bolt respectively.Two shuttle seats 26,26 movement and fixedly be two shuttles 21,21 arrangement pitch cooperated two eedles 18,18 arrangement pitch change to purpose, to be carried out by operating personnel.
Such as Fig. 4 and shown in Figure 6, two shuttle seats 26,26 rotatably support respectively two shuttle axles 27,27 and two shuttle driving shafts 29,29.Shuttle axle 27 is the rotating shafts of extending along above-below direction.Shuttle driving shaft 29 is the rotating shafts of extending along left and right directions.Outer shuttle 23 is fixed in the upper end of shuttle axle 27, and the upper end of this shuttle axle 27 protrudes from the top of shuttle seat 26.The bottom of shuttle axle 27 is inboard relative with left part or the right part of shuttle driving shaft 29 at shuttle seat 26.Shuttle axle 27 is connected the engagement of being connected with driven wheel by driven gear 28 and is connected with the shuttle driving shaft, this driven gear 28 and driven wheel 30 are individually fixed in the relative end of shuttle axle 27 and shuttle driving shaft 29.Driven gear 28 and driven wheel 30 all are bevel gears.Shuttle axle 27 and outer shuttle 23 rotate by the driving of shuttle driving shaft 29.
Such as Fig. 3 and shown in Figure 7, in the anterior position of lower shaft 25, shuttle driving shaft 29 protrudes from the outside of shuttle seat 26.Such as Fig. 3 to shown in Figure 6, the projected direction of shuttle driving shaft 29 be left in left side shuttle seat 26 to, in right side shuttle seat 26, be right.Two bearings 38,39 support shuttle driving shafts 29.Bearing 38 is fixed on the shuttle seat 26, and rotatably supports shuttle driving shaft 29 near driven wheel 30.Bearing 39 is fixed on the base 11, and this bearing 39 rotatably and can be along supporting axially slidably from the end of the outstanding shuttle driving shaft 29 of shuttle seat 26.
Such as Fig. 4 and shown in Figure 6, drive pulley 34 has width (length of the left and right directions) L wider than driven pulley 35.Synchronous belt 36 can move in the width of drive pulley 34.Driven pulley 35 moves along left and right directions by the movement of shuttle seat 26.Driven pulley 35 has flange in the both sides of width.Flange can prevent that synchronous belt 36 from coming off from driven pulley 35.Therefore, synchronous belt 36 moves along left and right directions by the movement of driven pulley 35.
The below describes the action of two-needle sewing machine 10.The main shaft of horn 13 inside rotates by the driving of sewing machine electromotor.The needle bar drive device of main shaft drives horn 13 front ends and thread take-up tension lever driving mechanism.The eedle 18,18 that is installed on shank 15 rises and descends by the action of needle bar drive device.Thread take-up tension lever 16 swings at above-below direction by the action of thread take-up tension lever driving mechanism.The synchronous belt that the rotation of main shaft is hung on lower shaft pulley 31 by volume is delivered to the lower shaft 25 of base 11 inside.The rotation of lower shaft 25 is delivered to the shuttle driving shaft 29 of shuttle seat 26 by drive pulley 34, synchronous belt 36 and driven pulley 35.The rotation of shuttle driving shaft 29 is delivered to shuttle axle 27 by driven wheel 30 and driven gear 28.Shuttle axle 27 rotates the outer shuttle 23 of the shuttle 21 that drive installation is held thereon with the rotary synchronous ground of main shaft and lower shaft 25.About two shuttles 21,21 are arranged at respectively on two shuttle seats 26,26.About two shuttles 21,21 and main shaft and lower shaft 25 synchronously rotate.The swing of the eedle 18 of shuttle 21,21 rotation and main shaft drives, 18 rising, decline and thread take-up tension lever 16 is synchronous.By two eedles 18,18 and two shuttles 21,21 synchronously action come to form at the processing cloth of needle plate 19 upper surfaces the stitchings of two bar lines.
When the interval of the stitching of the two bar lines of change, operating personnel change two eedles 18,18 arrangement pitch.Two eedles 18,18 arrangement pitch can change by changing eedle folder 17.Then, operating personnel cooperate two eedles 18,18 position and regulate two shuttles 21,21 arrangement pitch.Shuttle 21,21 arrangement pitch so that the outer shuttle 23 of rotation, 23 spur 24,24 cooperate eedles 18,18 down position and regulate.
The below describes the regulating step of two shuttles 21,21 arrangement pitch.Two shuttles 21,21 arrangement pitch by change two shuttle seats 26,26 fixed position is regulated.The change step of this fixed position to about two shuttle seats 26, the 26th, identical.Operating personnel pass slotted hole 37 by unscrewing respectively, 37 bolt 32,32 is removed the fixing of shuttle seat 26.Then, operating personnel move shuttle seat 26 along left and right directions (being the axial of lower shaft 25), regulate the position of shuttle seat 26. Shuttle seat 26,26 position are regulated so that the position of shuttle 21 is consistent with the down position of corresponding eedle 18. Operating personnel 32,32 are fixed in the shuttle seat 26 after the adjusting position on the base 11 by tighting a bolt.
When operating personnel regulate the position of shuttle 21 when movable shuttle seat 26, fixedly being removed of bearing 39 of shuttle driving shaft 29 will be supported.Shuttle driving shaft 29 can be by coming movable shuttle seat 26 in bearing 39 inner slide.After the position adjustments with shuttle 21, bearing 39 is fixed on the shuttle driving shaft 29.
During movable shuttle seat 26,26, synchronous belt 36 is being kept the volume of drive pulley 34 and driven pulley 35 and is being hung state.Therefore, during movable shuttle seat 26,26, the rotatable phase of lower shaft 25 and shuttle driving shaft 29 (shuttle 21) can not change.
Similarly, drive 29 rotations of shuttle driving shaft by drive pulley 34, synchronous belt 36 and driven pulley 35 before lower shaft 25 and the adjusting.The rotation of shuttle driving shaft 29 is delivered to shuttle axle 27 by the driven gear 28 with driven wheel 30 engagements.The outer shuttle 23 of shuttle 21 rotates with the phase place before identical with the position of regulating shuttle 21 by the driving of shuttle axle 27.
In the above-described embodiment, the first rotary part is that drive pulley 34, the second rotary parts are driven pulleies 35, and rotation transmission member is synchronous belt 36.Rotation transmission between lower shaft 25 and shuttle driving shaft 29 can be carried out with simple structure, namely only rolls up between drive pulley 34 and driven pulley 35 and hangs synchronous belt 36.
In the above-described embodiment, driven gear 28 and driven wheel 30 all are bevel gears.The gear backlash of driven gear 28 and driven wheel 30 can be by moving axially driven gear 28 or moving axially that driven wheel 30 is installed easily and adjust reliably along shuttle driving shaft 29 along shuttle axle 27.The parts of driven gear 28 and driven wheel 30 can use has identical shaped general parts.Therefore, two-needle sewing machine 10 can reduce component number and offering of lower priced articles.
The following describes the alter mode of the embodiment of top explanation having been carried out partial alteration.
(1) in the above-described embodiment, the width of drive pulley 34 forms larger.In alter mode, the width of driven pulley 35 also can become larger.Synchronous belt 36 is by the mobile volume extension state of keeping in the width range of driven pulley 35.
(2) in the above-described embodiment, the first rotary part and the second rotary part are belt pulley, and rotation transmission member is synchronous belt.The first rotary part and the second rotary part also can be sprocket wheel.At this moment, rotation transmission member also can be roller chain.
The first rotary part and the second rotary part also can be the first gear and the second gear, rotation transmission member also can for the idler gear of the first gear and the second gear engagement.
By in the top explanation as can be known, in the shuttle driving device of Sewing machines of the present invention, two shuttles are installed on respectively on two shuttle seats, this shuttle seat is inner mobile at base.The arrangement pitch of two shuttles can easily be regulated by the position of change shuttle seat.Shuttle seat supports shuttle axle and shuttle driving shaft.Shuttle is installed on the shuttle axle, rotates under the state of the driving of shuttle axle.The shuttle driving shaft is connected with lower shaft by transmission mechanism, and this transmission mechanism is being kept drive state in the moving range of shuttle seat.Operating personnel can come to regulate the arrangement pitch of two shuttles under the state of the position of rotation that does not change shuttle by the movable shuttle seat.
Claims (4)
1. the shuttle driving device of a Sewing machines comprises:
Lower shaft, this lower shaft is at the base internal rotating;
Two shuttles, these two shuttles are along the axially-aligned of described lower shaft, and are rotated under the driving of described lower shaft; And
Two shuttle seats, these two shuttle seats support respectively described two shuttles;
It is characterized in that:
Described two shuttle seats can be with respect to described base along the moving axially of described lower shaft, and rotatably support respectively each shuttle axle and each shuttle driving shaft,
Described each shuttle is installed on respectively on described each shuttle axle, one end of described each shuttle driving shaft comes to be connected with described each shuttle axle respectively by gear mechanism, the other end of described each shuttle driving shaft comes to be connected with described lower shaft respectively by transmission mechanism, the other end of described each shuttle driving shaft extends to respectively described each shuttle seat outside
Described transmission mechanism has drive pulley, driven pulley and synchronous belt, described drive pulley is fixed on the described lower shaft, and rotate integratedly with this lower shaft, described driven pulley is fixed on the described shuttle driving shaft, and rotate integratedly with this shuttle driving shaft, described synchronous belt volume is hung between described drive pulley and the described driven pulley
The length of the rotor shaft direction of described drive pulley or driven pulley can be delivered to the rotation of described drive pulley described driven pulley greater than the moving range of described shuttle seat in the moving range of described shuttle seat.
2. the shuttle driving device of Sewing machines as claimed in claim 1 is characterized in that: described driven pulley is disposed at the described shuttle seat outside.
3. the shuttle driving device of Sewing machines as claimed in claim 1 or 2, described gear mechanism has driven wheel and driven gear, described driven wheel is fixed on the described shuttle driving shaft, described driven gear and the engagement of described driven wheel, and be fixed on the described shuttle axle, described driven wheel and driven gear all are bevel gears.
4. the shuttle driving device of Sewing machines as claimed in claim 3, it is characterized in that: described driven wheel and described driven gear all are same shapes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008290932A JP2010115359A (en) | 2008-11-13 | 2008-11-13 | Shuttle drive mechanism for sewing machine |
| JP2008-290932 | 2008-11-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101736536A CN101736536A (en) | 2010-06-16 |
| CN101736536B true CN101736536B (en) | 2013-01-23 |
Family
ID=42303413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910175009 Expired - Fee Related CN101736536B (en) | 2008-11-13 | 2009-09-16 | Shuttle driving device of sewing machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2010115359A (en) |
| CN (1) | CN101736536B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047129B (en) * | 2013-03-15 | 2018-05-22 | 胜家采购有限公司 | Sewing machine variable timing system and the method for being selectively adjusted this timing |
| JP6761712B2 (en) * | 2016-09-20 | 2020-09-30 | Juki株式会社 | Sewing machine and sewing system |
| JP6537056B2 (en) * | 2017-01-27 | 2019-07-03 | 株式会社テクニカ | 2-needle lockstitch sewing machine |
| US11326284B2 (en) | 2018-06-22 | 2022-05-10 | Technica Co., Ltd. | Double-needle lockstitch sewing machine |
| CN110761003B (en) * | 2018-07-27 | 2021-11-23 | 拓卡奔马机电科技有限公司 | Needle shuttle clearance automatic regulating mechanism and sewing machine |
| CN111118759B (en) * | 2018-10-31 | 2021-07-23 | 拓卡奔马机电科技有限公司 | Needle and shuttle cooperation automatic regulating mechanism and sewing machine |
| CN111118758B (en) * | 2018-10-31 | 2021-08-27 | 拓卡奔马机电科技有限公司 | Needle and shuttle cooperation automatic regulating mechanism and sewing machine |
| CN109652930B (en) * | 2019-01-21 | 2021-07-13 | 杰克缝纫机股份有限公司 | Double-needle machine needle position adjusting mechanism and sewing machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2168002Y (en) * | 1993-07-26 | 1994-06-08 | 宁茂强 | Double-needle sewing machine |
| CN1222599A (en) * | 1997-11-25 | 1999-07-14 | 重机株式会社 | Two-needle sewing machine |
| US6032597A (en) * | 1997-09-30 | 2000-03-07 | Brother Kogyo Kabushiki Kaisha | Shuttle hook driver for sewing machine |
| DE102007031072A1 (en) * | 2006-07-05 | 2008-02-21 | Juki Corp., Tokio/Tokyo | Backstitch sewing machine with upper and lower transmission shafts linked by timing belt, includes mechanism varying belt strand length ratios dynamically, to alter rotary phase between shafts |
-
2008
- 2008-11-13 JP JP2008290932A patent/JP2010115359A/en active Pending
-
2009
- 2009-09-16 CN CN 200910175009 patent/CN101736536B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2168002Y (en) * | 1993-07-26 | 1994-06-08 | 宁茂强 | Double-needle sewing machine |
| US6032597A (en) * | 1997-09-30 | 2000-03-07 | Brother Kogyo Kabushiki Kaisha | Shuttle hook driver for sewing machine |
| CN1222599A (en) * | 1997-11-25 | 1999-07-14 | 重机株式会社 | Two-needle sewing machine |
| DE102007031072A1 (en) * | 2006-07-05 | 2008-02-21 | Juki Corp., Tokio/Tokyo | Backstitch sewing machine with upper and lower transmission shafts linked by timing belt, includes mechanism varying belt strand length ratios dynamically, to alter rotary phase between shafts |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101736536A (en) | 2010-06-16 |
| JP2010115359A (en) | 2010-05-27 |
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Granted publication date: 20130123 |