CN103614867B - Sewing machine pressing mechanism and sewing machine with sewing machine pressing mechanism - Google Patents
Sewing machine pressing mechanism and sewing machine with sewing machine pressing mechanism Download PDFInfo
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- CN103614867B CN103614867B CN201310638605.9A CN201310638605A CN103614867B CN 103614867 B CN103614867 B CN 103614867B CN 201310638605 A CN201310638605 A CN 201310638605A CN 103614867 B CN103614867 B CN 103614867B
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- compressing rod
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Abstract
The invention discloses a sewing machine pressing mechanism, and belongs to the technical field of sewing machines. According to the pressing mechanism, the mode that a first elastic component for providing the downward acting force for a pressing rod is arranged on the upper portion of the pressing rod, and a second elastic component for providing the upward acting force for the pressing rod is arranged on the lower portion of the pressing rod is adopted, the pressure on sewed materials is stable, the buffer effect on the pressing rod is achieved, and the problems that the sewed materials are wrinkled and the service life of a belt is short are solved.
Description
Technical field
The present invention relates to sewing device, specifically relate to a kind of feeding pressure mechanism of Sewing machines; The invention still further relates to the Sewing machines being provided with this feeding pressure mechanism.
Background technology
Existing in the art, the feeding pressure mechanism of Sewing machines generally comprises compressing rod, is hubbed at the presser foot component of compressing rod lower end, on lift saddle, connecting ring and adjust screw by external pressure, outer regulation component that spring forms.This feeding pressure mechanism is when sewing cloth, cladding, and the pressure suffered by sewing is improper, and sewing easily rises, and this phenomenon that becomes is more obvious around sewing thread trace, has a strong impact on sewing quality.And adopting the Sewing machines of this feeding pressure mechanism, in the process of belt drive pulley rotation, belt is subject to the larger alternate load of size difference, and belt easily weares and teares and occurs fatigue rupture, finally causes the service life of belt short.
Summary of the invention
In view of this, be necessary easily to rise for sewing when adopting the Sewing machines of above-mentioned feeding pressure mechanism to sew, and the problem that belt life is short, provide one in sewing process to the stable feeding pressure mechanism of sewing pressure.Adopt the Sewing machines of feeding pressure mechanism of the present invention to sew, sewing (particularly cladding) has been not easy, and belt is subject to the less alternate load of size difference in sewing process simultaneously, and belt is not easy to damage.
The present invention is achieved through the following technical solutions this object:
A kind of Sewing machines feeding pressure mechanism, comprise compressing rod, outer regulation component, on lift saddle, connecting ring; Saddle is lifted and compressing rod fixes on described; Described connecting ring is positioned to be lifted below saddle, and it is sheathed on compressing rod and also can relatively slides by compressing rod; Described outer regulation component comprises investigation mission outside the city or town Strut Part, the first flexible member; Described first flexible member upper end presses on investigation mission outside the city or town Strut Part, and relative compressing rod position, lower end is fixed, and provides downward active force to compressing rod; Described feeding pressure mechanism also comprises the second flexible member that upper end presses on connecting ring; After described feeding pressure mechanism is installed on head of sewing machine, investigation mission outside the city or town Strut Part can move in compressing rod axis direction relative to head of sewing machine, and the second relative Handpiece Location in flexible member lower end is fixed.
Further, described first flexible member, the second flexible member are Compress Spring.
Further, described first flexible member comprises the first elastic component, the second elastic component and adjusting nut; Be provided with external screw thread in upper outside of lifting part between saddle and investigation mission outside the city or town Strut Part in described compressing rod, described adjusting nut coordinates at the upper external screw thread lifted between saddle with investigation mission outside the city or town Strut Part with compressing rod; Described first elastic component is socketed on compressing rod, and two ends press on investigation mission outside the city or town Strut Part, adjusting nut respectively; Described second elastic component is socketed on compressing rod, and two ends press on respectively adjusting nut, on lift saddle.
Further, described first elastic component, the second elastic component are Compress Spring.
As the improvement of technique scheme, described investigation mission outside the city or town Strut Part offers the hole one run through to top bottom it; Hole two is offered at described compressing rod top; Described feeding pressure mechanism also comprises internal pressure-regulating assembly; Described internal pressure-regulating assembly comprises the 3rd flexible member, internal pressure-regulating rod member; Described 3rd flexible member is placed in hole two, and provides downward active force to compressing rod; Described internal pressure-regulating rod member through hole one, and presses on the upper end of the 3rd flexible member, and internal pressure-regulating rod member can move in compressing rod axis direction relative to Strut Part of transfering to other localities simultaneously.
Further, described 3rd flexible member is Compress Spring.
Further, described internal pressure-regulating rod member is provided with external screw thread, is provided with the internal thread matched with internal pressure-regulating rod member external screw thread in described hole one.
Further, described internal pressure-regulating rod member comprises interior pressure adjustment screw and slide bar; Screw thread on described interior pressure adjustment screw and the screw-internal thread fit in hole one, and its nut is positioned at the outside of investigation mission outside the city or town Strut Part; The two ends of described slide bar press on interior pressure adjustment screw bottom, the 3rd flexible member upper end respectively.
As the improvement of technique scheme, described feeding pressure mechanism also comprises two ends and presses on the 4th flexible member lifting saddle, connecting ring respectively.
Further, described 4th flexible member is Compress Spring.
Further, screw thread is provided with outside described investigation mission outside the city or town Strut Part.
The present invention also provides a kind of Sewing machines, and described Sewing machines comprises above-mentioned feeding pressure mechanism.
Hinge structure, Sewing machines feeding pressure mechanism of the present invention possesses following advantage:
1) steady to the pressure of sewing, sewing (particularly cladding) has been not easy.
2), during sewing cladding, cladding there will not be the defects such as dislocation, lap seam.
3) during feeding pressure mechanism work, the first flexible member, the second flexible member all can play cushioning effect to compressing rod, make pulley rotation light, do not have weightless sense; And as the motor of power resources, because pulley rotation is steady, so the power output trend of motor is stable, can not damage because of overwork, thus extend the service life of motor.
4) the first flexible member, the second flexible member are to the cushioning effect of compressing rod, and make belt in sewing process, be subject to the less alternate load of size difference, belt is not easy to damage, long service life.
5) because the first flexible member, the second flexible member are to the cushioning effect of compressing rod, so adopt the shock loading suffered by parts and components in the Sewing machines of compressing rod of the present invention to reduce, thus the parts and components wearing and tearing in Sewing machines reduce, long service life.
6) adopting the Sewing machines of compressing rod of the present invention to be not easy to occur bouncing pilotage when sewing up thick material, reducing broken needle probability.
Accompanying drawing explanation
Fig. 1 is the structural representation of one of them embodiment of Sewing machines feeding pressure mechanism of the present invention.
Fig. 2 is that in Fig. 1, feeding pressure mechanism is installed on the structural representation on head of sewing machine.
Description of symbols: 1-compressing rod, the outer regulation component of 2-, 3-lifts saddle, 4-connecting ring, 5-presser foot component, 6-investigation mission outside the city or town Strut Part, 7-first flexible member, 8-first elastic component, 9-second elastic component, 10-adjusting nut, 11-second flexible member, 12-internal pressure-regulating assembly, 13-the 3rd flexible member, 14-internal pressure-regulating rod member, pressure adjustment screw in 15-, 16-slide bar, 17-the 4th flexible member, 18-head.
Detailed description of the invention
For the ease of it will be appreciated by those skilled in the art that the present invention is described further below in conjunction with accompanying drawing and embodiment.
Figure 1 shows that one of them embodiment of Sewing machines feeding pressure mechanism of the present invention.
See Fig. 1, this feeding pressure mechanism comprise compressing rod 1, outer regulation component 2, on lift saddle 3, connecting ring 4, presser foot component 5.Lift saddle 3 on described to be fixed on compressing rod 1.Described connecting ring 4 is positioned to be lifted below saddle 3, and it is sheathed on compressing rod 1, and can relatively slide in certain area by compressing rod 1.Described presser foot component 5 is fixed on compressing rod 1 lower end.
Described outer regulation component 2 comprises investigation mission outside the city or town Strut Part 6, first flexible member 7.Offer hole one bottom described investigation mission outside the city or town Strut Part 6, investigation mission outside the city or town Strut Part 6 passing hole one is placed on the top of compressing rod 1.Due to feeding pressure mechanism operationally, investigation mission outside the city or town Strut Part 6 is installed on head of sewing machine 18 and maintains static, and see Fig. 2, so compressing rod 1 presser feet or lift in the process of presser feet downwards, can move vertically relative to investigation mission outside the city or town Strut Part 6.Described first flexible member 7 two ends press on respectively investigation mission outside the city or town Strut Part 6, on lift saddle 3, it provides a downward active force to above lifting saddle 3; By regulate outer adjusting rod part relatively on lift the initial distance of saddle 3, the first flexible member 7 can be changed to the amount of force of above lifting saddle 3.
In the present embodiment, outside described investigation mission outside the city or town Strut Part 6, be provided with external screw thread, the screw-internal thread fit in this external screw thread and head of sewing machine 18 upper mounting holes, see Fig. 2, rotate investigation mission outside the city or town Strut Part 6 can change outer adjusting rod part relatively on lift the initial distance of saddle 3.Described first flexible member 7 comprises the first elastic component 8, second elastic component 9 and adjusting nut 10.Be provided with external screw thread at the upper portion outboard lifted between saddle 3 and investigation mission outside the city or town Strut Part 6 in described compressing rod 1, described adjusting nut 10 coordinates at the upper external screw thread lifted between saddle 3 with investigation mission outside the city or town Strut Part 6 with compressing rod 1.Described first elastic component 8 is socketed on compressing rod 1, and two ends press on investigation mission outside the city or town Strut Part 6, adjusting nut 10 respectively; Described second elastic component 9 is socketed on compressing rod 1, and two ends press on respectively adjusting nut 10, on lift saddle 3.Change the position of the relative compressing rod 1 of adjusting nut 10, also can change the amount of force of the first flexible member 7 pairs of compressing rods 1.Concrete, described first elastic component 8, second elastic component 9 is Compress Spring.Should be appreciated that described first flexible member can also for be socketed on compressing rod 1 and two ends press on investigation mission outside the city or town Strut Part 6, on lift the Compress Spring of saddle 3.
Described feeding pressure mechanism also comprises the second flexible member 11, second flexible member 11 upper end and presses on bottom connecting ring 4, and lower end presses on head 18, and namely the second flexible member 11 lower end position is fixed.Described second flexible member 11 pairs of connecting rings 4 provide an active force upwards, to compressing rod 1 cushioning effect.In the present embodiment, described second flexible member 11 is Compress Spring.
Steady to the pressure of sewing when first flexible member 7, second flexible member 11 makes presser foot component 5 work, sewing (particularly cladding) has been not easy, and cladding there will not be the defects such as dislocation, lap seam.
First flexible member 7, second flexible member 11 all can play cushioning effect to compressing rod 1 simultaneously, and its effect reached comprises: 1) make pulley rotation light, do not have weightless sense; And as the motor of power resources, because pulley rotation is steady, so the power output trend of motor is stable, can not damage because of overwork, thus extend the service life of motor; 2) belt is subject to the less alternate load of size difference in sewing process, and belt is not easy to damage, long service life; 3) shock loading suffered by the parts and components in Sewing machines reduces, thus the parts and components wearing and tearing in Sewing machines reduce, long service life; 4) Sewing machines is not easy to occur bouncing pilotage when sewing up thick material, reduces broken needle probability.
In the process that general sewing machine is sewed up at thick material, the not smooth rotation of belt pulley, easily causes bouncing pilotage, and settling mode conventional is at present the distance reducing large still and pin; But adopt which can produce another problem-easily broken needle, large still shortens service life simultaneously.And described feeding pressure mechanism pulley rotation is steady, stable output power, can reduce the probability occurring bouncing pilotage or broken needle greatly.
Described feeding pressure mechanism also comprises internal pressure-regulating assembly 12, and internal pressure-regulating assembly 12 comprises the 3rd flexible member 13, internal pressure-regulating rod member 14.The Kong Yiwei of described investigation mission outside the city or town Strut Part 6 runs through the through hole to top bottom investigation mission outside the city or town Strut Part 6, and described compressing rod 1 top offers the hole two of accommodation the 3rd flexible member 13.Described 3rd flexible member 13 lower end presses on the bottom in hole two, provides downward active force to compressing rod 1.Described internal pressure-regulating rod member 14 through hole one, and presses on the upper end of the 3rd flexible member 13, changes the relative investigation mission outside the city or town Strut Part 6 of internal pressure-regulating rod member 14 in the position of compressing rod 1 axis direction, can change the active force of the 3rd flexible member 13 pairs of compressing rods 1.Described first flexible member 7, second flexible member 11 all provides along the downward active force of compressing rod 1 axis direction to compressing rod 1, and the mode of this inside and outside effect makes the movement of binder axle more steady.
In the present embodiment, described 3rd flexible member 13 is Compress Spring.Described internal pressure-regulating rod member 14 is provided with external screw thread, the internal thread matched with internal pressure-regulating rod member 14 external screw thread is provided with in described hole one, rotate described internal pressure-regulating bar, internal pressure-regulating rod member 14 can be made to move in compressing rod 1 axis direction relative to investigation mission outside the city or town Strut Part 6, and then increase or reduce the active force of the 3rd flexible member 13 pairs of compressing rods 1.Concrete, described internal pressure-regulating rod member 14 comprises interior pressure adjustment screw 15 and slide bar 16; Screw thread on described interior pressure adjustment screw 15 and the screw-internal thread fit in hole one, and its nut is positioned at the outside of investigation mission outside the city or town Strut Part 6; The two ends of described slide bar 16 press on interior pressure adjustment screw 15 bottom, the 3rd flexible member 13 upper end respectively.
Described feeding pressure mechanism also comprises two ends and presses on the 4th flexible member 17 lifting saddle 3, connecting ring 4 respectively, and in the present embodiment, described 4th spring element is Compress Spring.
Feeding pressure mechanism in general sewing machine is replaced by above-mentioned feeding pressure mechanism and is one of them embodiment of Sewing machines of the present invention.Described Sewing machines can be used for making case and bag, belt, clothes, shoes etc.
The above embodiment only have expressed some embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (12)
1. a Sewing machines feeding pressure mechanism, comprise compressing rod, outer regulation component, on lift saddle, connecting ring; Saddle is lifted and compressing rod fixes on described; Described connecting ring is positioned to be lifted below saddle, and it is sheathed on compressing rod and also can relatively slides by compressing rod; Described outer regulation component comprises investigation mission outside the city or town Strut Part, the first flexible member; Described first flexible member upper end presses on investigation mission outside the city or town Strut Part, and relative compressing rod position, lower end is fixed, and provides downward active force to compressing rod; It is characterized in that:
Described feeding pressure mechanism also comprises the second flexible member that upper end presses on connecting ring; After described feeding pressure mechanism is installed on head of sewing machine, investigation mission outside the city or town Strut Part can move in compressing rod axis direction relative to head of sewing machine, and the second relative Handpiece Location in flexible member lower end is fixed;
Described first flexible member comprises the first elastic component, the second elastic component and adjusting nut; Be provided with external screw thread in upper outside of lifting part between saddle and investigation mission outside the city or town Strut Part in described compressing rod, described adjusting nut coordinates at the upper external screw thread lifted between saddle with investigation mission outside the city or town Strut Part with compressing rod; Described first elastic component is socketed on compressing rod, and two ends press on investigation mission outside the city or town Strut Part, adjusting nut respectively; Described second elastic component is socketed on compressing rod, and two ends press on respectively adjusting nut, on lift saddle;
Described investigation mission outside the city or town Strut Part offers the hole one run through to top bottom it; Hole two is offered at described compressing rod top; Described feeding pressure mechanism also comprises internal pressure-regulating assembly; Described internal pressure-regulating assembly comprises the 3rd flexible member, internal pressure-regulating rod member; Described 3rd flexible member is placed in hole two, and provides downward active force to compressing rod; Described internal pressure-regulating rod member through hole one, and presses on the upper end of the 3rd flexible member, and internal pressure-regulating rod member can move in compressing rod axis direction relative to Strut Part of transfering to other localities simultaneously.
2. Sewing machines feeding pressure mechanism according to claim 1, is characterized in that: described first flexible member, the second flexible member are Compress Spring.
3. Sewing machines feeding pressure mechanism according to claim 1, is characterized in that: described 3rd flexible member is Compress Spring; Described internal pressure-regulating rod member is provided with external screw thread, is provided with the internal thread matched with internal pressure-regulating rod member external screw thread in described hole one.
4. Sewing machines feeding pressure mechanism according to claim 3, is characterized in that: described internal pressure-regulating rod member comprises interior pressure adjustment screw and slide bar; Screw thread on described interior pressure adjustment screw and the screw-internal thread fit in hole one, and its nut is positioned at the outside of investigation mission outside the city or town Strut Part; The two ends of described slide bar press on interior pressure adjustment screw bottom, the 3rd flexible member upper end respectively.
5. a Sewing machines feeding pressure mechanism, comprise compressing rod, outer regulation component, on lift saddle, connecting ring; Saddle is lifted and compressing rod fixes on described; Described connecting ring is positioned to be lifted below saddle, and it is sheathed on compressing rod and also can relatively slides by compressing rod; Described outer regulation component comprises investigation mission outside the city or town Strut Part, the first flexible member; Described first flexible member upper end presses on investigation mission outside the city or town Strut Part, and relative compressing rod position, lower end is fixed, and provides downward active force to compressing rod; It is characterized in that:
Described feeding pressure mechanism also comprises the second flexible member that upper end presses on connecting ring; After described feeding pressure mechanism is installed on head of sewing machine, investigation mission outside the city or town Strut Part can move in compressing rod axis direction relative to head of sewing machine, and the second relative Handpiece Location in flexible member lower end is fixed;
Described first flexible member comprises the first elastic component, the second elastic component and adjusting nut; Be provided with external screw thread in upper outside of lifting part between saddle and investigation mission outside the city or town Strut Part in described compressing rod, described adjusting nut coordinates at the upper external screw thread lifted between saddle with investigation mission outside the city or town Strut Part with compressing rod; Described first elastic component is socketed on compressing rod, and two ends press on investigation mission outside the city or town Strut Part, adjusting nut respectively; Described second elastic component is socketed on compressing rod, and two ends press on respectively adjusting nut, on lift saddle;
Also comprise two ends and press on the 4th flexible member lifting saddle, connecting ring respectively.
6. Sewing machines feeding pressure mechanism according to claim 5, is characterized in that: described 4th flexible member is Compress Spring; Screw thread is provided with outside described investigation mission outside the city or town Strut Part.
7. a Sewing machines feeding pressure mechanism, comprise compressing rod, outer regulation component, on lift saddle, connecting ring; Saddle is lifted and compressing rod fixes on described; Described connecting ring is positioned to be lifted below saddle, and it is sheathed on compressing rod and also can relatively slides by compressing rod; Described outer regulation component comprises investigation mission outside the city or town Strut Part, the first flexible member; Described first flexible member upper end presses on investigation mission outside the city or town Strut Part, and relative compressing rod position, lower end is fixed, and provides downward active force to compressing rod; It is characterized in that:
Described feeding pressure mechanism also comprises the second flexible member that upper end presses on connecting ring; After described feeding pressure mechanism is installed on head of sewing machine, investigation mission outside the city or town Strut Part can move in compressing rod axis direction relative to head of sewing machine, and the second relative Handpiece Location in flexible member lower end is fixed;
Also comprise two ends and press on the 4th flexible member lifting saddle, connecting ring respectively;
Described investigation mission outside the city or town Strut Part offers the hole one run through to top bottom it; Hole two is offered at described compressing rod top; Described feeding pressure mechanism also comprises internal pressure-regulating assembly; Described internal pressure-regulating assembly comprises the 3rd flexible member, internal pressure-regulating rod member; Described 3rd flexible member is placed in hole two, and provides downward active force to compressing rod; Described internal pressure-regulating rod member through hole one, and presses on the upper end of the 3rd flexible member, and internal pressure-regulating rod member can move in compressing rod axis direction relative to Strut Part of transfering to other localities simultaneously.
8. Sewing machines feeding pressure mechanism according to claim 7, is characterized in that: described 4th flexible member is Compress Spring; Screw thread is provided with outside described investigation mission outside the city or town Strut Part.
9. Sewing machines feeding pressure mechanism according to claim 7, is characterized in that: described 3rd flexible member is Compress Spring; Described internal pressure-regulating rod member is provided with external screw thread, is provided with the internal thread matched with internal pressure-regulating rod member external screw thread in described hole one.
10. Sewing machines feeding pressure mechanism according to claim 7, is characterized in that: described internal pressure-regulating rod member comprises interior pressure adjustment screw and slide bar; Screw thread on described interior pressure adjustment screw and the screw-internal thread fit in hole one, and its nut is positioned at the outside of investigation mission outside the city or town Strut Part; The two ends of described slide bar press on interior pressure adjustment screw bottom, the 3rd flexible member upper end respectively.
11. 1 kinds of Sewing machines feeding pressure mechanisms, comprise compressing rod, outer regulation component, on lift saddle, connecting ring; Saddle is lifted and compressing rod fixes on described; Described connecting ring is positioned to be lifted below saddle, and it is sheathed on compressing rod and also can relatively slides by compressing rod; Described outer regulation component comprises investigation mission outside the city or town Strut Part, the first flexible member; Described first flexible member upper end presses on investigation mission outside the city or town Strut Part, and relative compressing rod position, lower end is fixed, and provides downward active force to compressing rod; It is characterized in that:
Described feeding pressure mechanism also comprises the second flexible member that upper end presses on connecting ring; After described feeding pressure mechanism is installed on head of sewing machine, investigation mission outside the city or town Strut Part can move in compressing rod axis direction relative to head of sewing machine, and the second relative Handpiece Location in flexible member lower end is fixed;
Also comprise two ends and press on the 4th flexible member lifting saddle, connecting ring respectively;
Described first flexible member, the second flexible member are Compress Spring.
12. 1 kinds of Sewing machiness, comprise the feeding pressure mechanism described in any one of the claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310638605.9A CN103614867B (en) | 2013-12-02 | 2013-12-02 | Sewing machine pressing mechanism and sewing machine with sewing machine pressing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310638605.9A CN103614867B (en) | 2013-12-02 | 2013-12-02 | Sewing machine pressing mechanism and sewing machine with sewing machine pressing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103614867A CN103614867A (en) | 2014-03-05 |
| CN103614867B true CN103614867B (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310638605.9A Expired - Fee Related CN103614867B (en) | 2013-12-02 | 2013-12-02 | Sewing machine pressing mechanism and sewing machine with sewing machine pressing mechanism |
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| Country | Link |
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| CN (1) | CN103614867B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105780315B (en) * | 2016-05-16 | 2018-03-30 | 浙江美机缝纫机有限公司 | The sewing machine of buffer unit is fallen with presser feet |
| CN109183288B (en) * | 2018-09-29 | 2020-11-03 | 浙江杰克智能缝制科技有限公司 | Cloth pressing device of sewing machine and sewing machine |
| CN111424381B (en) * | 2019-01-10 | 2022-02-01 | 杰克缝纫机股份有限公司 | Pressure bar mechanism and sewing machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4630557A (en) * | 1981-05-14 | 1986-12-23 | The Singer Company | Adjustable low inertia presser bar |
| JPH03236892A (en) * | 1990-02-14 | 1991-10-22 | Mitsubishi Electric Corp | Upper feed mechanism of sewing machine |
| DE19603294C1 (en) * | 1996-01-30 | 1997-09-25 | Duerkopp Adler Ag | Sewing machine |
| CN101532215A (en) * | 2009-04-14 | 2009-09-16 | 上海贵衣缝纫设备有限公司 | Automatic lifting device for presser foot of bar tacking machine |
| CN102330292B (en) * | 2011-08-25 | 2013-02-06 | 中屹机械工业有限公司 | Intelligent cloth pressing device |
| CN103352332B (en) * | 2013-06-26 | 2014-09-03 | 西安标准工业股份有限公司 | Electronic back-pulling mechanism |
| CN203602873U (en) * | 2013-12-02 | 2014-05-21 | 耿安富 | Material pressing mechanism of sewing machine and sewing machine |
-
2013
- 2013-12-02 CN CN201310638605.9A patent/CN103614867B/en not_active Expired - Fee Related
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Granted publication date: 20150624 Termination date: 20171202 |