CN113174707A - Internal and external presser foot interaction quantity adjusting and presser foot lifting mechanism of sewing machine - Google Patents
Internal and external presser foot interaction quantity adjusting and presser foot lifting mechanism of sewing machine Download PDFInfo
- Publication number
- CN113174707A CN113174707A CN202110591265.3A CN202110591265A CN113174707A CN 113174707 A CN113174707 A CN 113174707A CN 202110591265 A CN202110591265 A CN 202110591265A CN 113174707 A CN113174707 A CN 113174707A
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- presser foot
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- 230000007246 mechanism Effects 0.000 title claims abstract description 29
- 230000003993 interaction Effects 0.000 title claims abstract description 27
- 238000009958 sewing Methods 0.000 title claims abstract description 23
- 230000000630 rising effect Effects 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 description 8
- 230000002452 interceptive effect Effects 0.000 description 3
- 206010061224 Limb discomfort Diseases 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/02—Presser-control devices
Abstract
The patent belongs to the technical field of sewing machines, in particular to an inner presser foot and outer presser foot interaction quantity adjusting and presser foot lifting mechanism of a sewing machine, the integral structure is compact and simple, the component number is greatly reduced, and the integral structure is stable and convenient to assemble as the integral structure is composed of fixed connecting rods or cranks; simultaneously, the rotation of first cam in this patent through swing eccentric fork directly with adjust the swing seat and be connected to produced error when having reduced the regulation makes the precision of adjusting higher. The rotation center line of the swing eccentric fork and the presser foot swing shaft are on the same axis, and the swing eccentric fork is directly sleeved on the presser foot swing shaft, so that the transmission structure from the cam assembly to the adjusting swing seat is simplified, and meanwhile, the center of the motion track of the adjusting end of the adjusting swing seat and the presser foot swing shaft are on the same axis, so that the calculation model of the interaction quantity is simplified.
Description
Technical Field
The patent belongs to the technical field of sewing machines, and particularly relates to a presser foot lifting mechanism for adjusting the mutual quantity of an inner presser foot and an outer presser foot of a sewing machine.
Background
CN202011173135.X discloses a presser foot lifting and presser foot interaction amount adjusting device, which comprises a stepping motor and a compound cam, wherein the compound cam is provided with two working curved surfaces, and the first working curved surface is matched with a presser foot lifting crank to complete the presser foot lifting work; the second working curved surface is matched with the interactive quantity adjusting left crank, only a second adjusting swing rod can be driven through a series of complex transmission mechanisms, the position of the second adjusting swing rod limits the swing track passing through the lower end of the connecting rod, the power of the upper shaft is transmitted to the connecting rod through the eccentric wheel and the adjusting connecting rod, and the connecting rod drives the lifting crank to move; this patent suffers from the following disadvantages:
1. in the process of realizing the adjustment of the interaction quantity of the presser foot by the compound cam, the left crank and the right crank for adjusting the interaction quantity must be matched with a return spring to cope with the ascending and descending of the compound cam, otherwise, the left crank for adjusting the interaction quantity is separated from the compound cam, and the right crank for adjusting the interaction quantity is separated from the rocker pin; oil mist exists in the machine head for a long time, so that sundries are easily accumulated, and the reset spring is blocked;
2. the requirement on the accuracy of the adjustment of the interaction amount of the inner presser foot and the outer presser foot is high, the rotation of the compound cam and the rotation of the adjusting swing rod II have no direct relation, and the ideal effect can be achieved only by repeatedly debugging a real object;
3. the second adjusting swing rod can realize positioning only by matching the return spring with the interaction quantity adjusting right crank; it is equivalent to soft fixation, and has corresponding hidden danger.
Disclosure of Invention
The purpose of this patent is to provide a sewing machine's inside and outside presser foot mutual quantity regulation and lift presser foot mechanism that structure is simpler.
The purpose of this patent is so realized:
the mutual quantity regulation and presser foot lifting mechanism for inner and outer presser feet of sewing machine comprises
A frame;
a spindle rotating at a high speed with a spindle motor;
the interaction conversion mechanism is used for converting the rotation of the main shaft into the reciprocating swing of the presser foot swing shaft; the interaction conversion mechanism comprises an adjusting swing seat, and the adjusting swing seat is used for adjusting the swing range of the presser foot swing shaft transmitted by the main shaft;
the presser foot swing shaft is used for driving the interaction of the inner presser foot and the outer presser foot;
the presser foot lifting shaft is used for driving the inner presser foot and the outer presser foot to lift or descend;
the driving mechanism comprises a stepping motor arranged on the head of the sewing machine, a cam component is arranged on the motor shaft of the stepping motor, and the cam component is provided with a first working curved surface
And a second working curved surface; the first working curved surface drives the presser foot lifting shaft to complete the presser foot lifting work, and the second working curved surface is used for driving and adjusting the swing seat;
the presser foot swing shaft is rotatably provided with a swing eccentric fork, and the rotating center line of the swing eccentric fork and the presser foot swing shaft have the same axis;
the front part of the swing eccentric fork faces the cam assembly and is matched with the second working curved surface; when the cam component rotates, the second working curved surface positioned on the upper side is attached to the inner wall of the upper fork part of the swing eccentric fork, and the second working curved surface positioned on the lower side is attached to the inner wall of the lower fork part of the swing eccentric fork;
the tail part of the swing eccentric fork is provided with a swing rod pin, and the other end of the swing rod pin is rotatably arranged at the adjusting end of the adjusting swing seat.
Further, the cam assembly comprises a first cam a and a second eccentric wheel b which are installed on the motor shaft, the wheel surface of the first cam is the first working curved surface, and the wheel surface of the second eccentric wheel is the second working curved surface.
Furthermore, a first eccentric wheel is mounted on the main shaft, and a first adjusting connecting rod is sleeved on the first eccentric wheel; the swing end of the first adjusting connecting rod, the swing end of the adjusting swing seat and the front end of the bridge type connecting rod are coaxially hinged, the tail end of the bridge type connecting rod is hinged to a right swing crank, and the right swing crank is sleeved on the presser foot swing shaft.
Furthermore, a left pressure lifting crank is mounted at the left end of the pressure foot lifting shaft, and a right pressure lifting crank is mounted at the right end of the pressure foot lifting shaft;
the right pressure lifting crank extends towards the first working curved surface and is provided with a roller which abuts against the first working curved surface;
the movable end of the left pressure lifting crank is hinged with a pressure lifting and pressing foot connecting rod.
Furthermore, a manual lifting crank is rotatably mounted at the rear side of the rack, a lifting cam is mounted at the inner end of the manual lifting crank, a shifting block is arranged in the middle of the presser foot lifting shaft, and the lifting cam abuts against the shifting block and drives the presser foot lifting shaft to rotate.
Further, the first working curved surface comprises a maintaining working curved surface, a rising working curved surface with gradually increased height and a falling working curved surface with gradually decreased height; the working curved surface and the eccentric curved surface in the second eccentric wheel face to the same direction and have the same radian.
Compared with the prior art, the patent has the outstanding and beneficial technical effects that:
the novel gear box is compact and simple in overall structure, greatly reduces the number of components, is composed of the fixed connecting rods or the cranks, is stable in overall structure and is convenient to assemble; simultaneously, the rotation of first cam in this patent through swing eccentric fork directly with adjust the swing seat and be connected to produced error when having reduced the regulation makes the precision of adjusting higher.
The rotation center line of the swing eccentric fork and the presser foot swing shaft are on the same axis, and the swing eccentric fork is directly sleeved on the presser foot swing shaft, so that the transmission structure from the cam assembly to the adjusting swing seat is simplified, and meanwhile, the center of the motion track of the adjusting end of the adjusting swing seat and the presser foot swing shaft are on the same axis, so that the calculation model of the interaction quantity is simplified.
Drawings
FIG. 1 is a schematic view of a sewing machine of the present patent;
FIG. 2 is a schematic view of the inside of the sewing machine of this patent;
FIG. 3 is a schematic view at the presser foot swing axis;
FIG. 4 is an exploded view of the presser foot swing shaft;
FIG. 5 is a schematic view at the interaction mechanism;
fig. 6 is an exploded schematic view at the presser foot lifting bar;
fig. 7 is a schematic structural view of the first cam.
The reference numerals in the figures denote the meanings:
1. a main shaft; 11. a first eccentric wheel; 12. a first adjusting link; 121. a first adjusting connecting rod swinging end; 2. an interaction switching mechanism; 21. adjusting the swing seat; 211. an adjustment end; 212. adjusting the swing end of the swing seat; 22. a rocker pin; 23. a bridge type connecting rod; 24. a right swing crank; 3. a presser foot swing shaft; 4. a presser foot lift shaft; 41. left lifting and pressing a crank; 42. lifting and pressing the crank on the right; 421. a roller; 43. lifting a presser foot connecting rod; 44. manually lifting a crank; 441. a lift cam; 45. shifting blocks; 5. a drive mechanism; 51. a stepping motor; 52. a cam assembly; 52a, a first cam; 52b, a second eccentric wheel; 521. a first working curved surface; 521a, maintaining a working curved surface; 521b, a rising working curved surface; 521c, descending working curved surface; 522. a second working curved surface; 6. swinging the eccentric fork; 61. an upper fork portion; 62. a lower fork portion; 63. swinging the center line of rotation of the eccentric fork; 7. and a frame.
Detailed Description
This patent is further described below in conjunction with specific examples:
the mutual quantity regulation and presser foot lifting mechanism for inner and outer presser feet of sewing machine comprises
A frame 7;
the main shaft 1 is arranged in the frame 7 and rotates at a high speed along with the motor of the main shaft 1;
as shown in fig. 1 and 2, the main shaft 1 is used for driving a needle bar of a sewing machine to work and performing sewing operation;
the presser foot swing shaft 3 is used for driving the interaction of the inner presser foot and the outer presser foot; the presser foot swing shaft 3 is positioned on one side of the main shaft 1, one end of the presser foot swing shaft 3 is connected with a swing mechanism for enabling the inner presser foot and the outer presser foot to operate alternately, and the inner presser foot and the outer presser foot operate alternately through the reciprocating swing of the presser foot swing shaft 3;
a presser foot lifting shaft 4 for driving the inner and outer presser feet to be lifted or lowered, the presser foot lifting shaft 4 being provided at one side of the presser foot swing shaft 3; one end of the presser foot lifting shaft 4 is connected with a lifting mechanism for lifting the inner presser foot and the outer presser foot, and the inner presser foot and the outer presser foot are lifted or pressed down alternately through the swinging of the presser foot lifting shaft 4;
a cross-conversion mechanism 2 provided between the presser foot swing shaft 3 and the main shaft 1, for converting the rotation of the main shaft 1 into the reciprocating swing of the presser foot swing shaft 3; specifically, as shown in fig. 2, the interaction conversion mechanism 2 includes a first eccentric wheel 11 mounted on the main shaft 1, a first adjusting connecting rod 12 is sleeved on the first eccentric wheel 11, the first adjusting connecting rod 12 is connected with a bridge-type connecting rod 23, the tail end of the bridge-type connecting rod 23 is hinged on a right swinging crank 24, and the right swinging crank 24 is sleeved on the presser foot swinging shaft 3; when the main shaft 1 rotates, the first eccentric wheel 11 is driven to rotate, the first eccentric wheel 11 drives the first adjusting connecting rod 12 to do reciprocating swing, and the reciprocating swing is transmitted to the presser foot swing shaft 3 through the bridge type connecting rod 23 and the right swing crank 24, so that the circumferential rotation of the main shaft 1 is changed into the reciprocating swing of the first adjusting connecting rod 12; the interaction conversion mechanism 2 further comprises an adjusting swing seat 21, and the adjusting swing seat 21 is used for adjusting the swing range of the presser foot swing shaft 3 transmitted by the main shaft 1;
the driving mechanism 5 comprises a stepping motor 51 arranged on the head of the sewing machine, a cam component 52 is arranged on a motor shaft of the stepping motor 51, and the cam component 52 is provided with a first working curved surface 521 and a second working curved surface 522; the first working curved surface drives the presser foot lifting shaft 4 to complete the presser foot lifting work, and the second working curved surface 522 is used for driving the adjusting swing seat 21. Specifically, the cam assembly 52 includes a first cam 52a and a second eccentric 52b mounted on the motor shaft of the stepping motor 51, the wheel surface of the first cam 52a is the first working curved surface 521, and the wheel surface of the second eccentric 52b is the second working curved surface 522; the first cam 52a and the second eccentric wheel 52b are sequentially disposed in the front-rear direction and are connected to the presser foot swing shaft 3 and the presser foot lifting shaft 4, respectively. The cam assembly 52 may also be a compound cam, and the compound cam is provided with the first working curved surface 521 and the second working curved surface 522.
Furthermore, a swing eccentric fork 6 is rotatably mounted on the presser foot swing shaft 3, and the rotation center line of the swing eccentric fork 6 is the same as the axis of the presser foot swing shaft 3;
the front of the oscillating eccentric fork 6 faces towards said cam assembly 52 and cooperates with the second working curved surface 522; when the cam member 52 rotates, the second curved working surface 522 located on the upper side abuts against the inner wall of the upper fork portion 61 of the swing eccentric fork 6, and the second curved working surface 522 located on the lower side abuts against the inner wall of the lower fork portion 62 of the swing eccentric fork 6;
the tail part of the swing eccentric fork 6 is provided with a swing rod pin 22, and the other end of the swing rod pin 22 is rotatably arranged at an adjusting end 211 of the adjusting swing seat 21.
As shown in fig. 3 and 4, the swing eccentric fork 6 includes a central portion rotatably connected to the presser foot swing shaft 3, the upper fork portion 61 and the lower fork portion 62 are respectively provided on both sides of the central portion, and the upper fork portion 61 and the lower fork portion 62 are connected to each other to form a tiger-mouth shape and are clamped on the first cam 52 a; the swing rod pin 22 is a connecting block, the adjusting swing seat 21 is a crank, the adjusting swing seat swing end 212 is rotatably connected with the first adjusting connecting rod swing end 121 through a connecting shaft and is simultaneously connected with the front end of the bridge type connecting rod 23, the other end of the adjusting swing seat 21, namely the adjusting end 211 of the adjusting swing seat 21, is rotatably connected with the swing rod pin 22 through the connecting shaft, and at the moment, the main shaft 1 is connected with the first cam 52 a. The first cam 52a is an eccentric structure and has an eccentric end, when the first cam 52a rotates, the position of the eccentric end of the first cam 52a changes, when the first cam 52a jacks up the upper fork part 61 of the swing eccentric fork 6, the swing eccentric fork 6 is driven to rotate around the presser foot swing shaft 3, so that the swing rod pin 22 deflects downwards, the swing rod pin 22 deflects downwards to drive the adjusting swing seat 21 to deflect downwards, because the adjusting swing seat 21 is connected with the first adjusting connecting rod 12, when the adjusting swing seat 21 deflects downwards, the first adjusting connecting rod 12 is driven to move downwards at the same time, so as to reduce the initial height of the first adjusting connecting rod 12 and the degree of deflection thereof, when the main shaft 1 rotates again to drive the first adjusting connecting rod 12 to swing, because the initial height and the degree of deflection of the first adjusting connecting rod 12 change, the swing amplitude and the position of the presser foot swing shaft 3 correspondingly change, thereby changing the interactive motion condition of the internal and external pressure feet and realizing the adjustment of the interactive quantity of the internal and external pressure feet. The structure of the presser foot swing shaft 3 driving the inner and outer presser feet is the same as the prior art, and therefore, the detailed description is omitted. Compared with the prior art, the novel hydraulic cylinder has the advantages that the overall structure is compact, the number of components is greatly reduced, the components are all composed of fixed connecting rods or cranks, the overall structure is stable, and the assembly is convenient; meanwhile, the rotation of the first cam 52a in this patent is directly connected with the adjusting swing seat 21 through the swinging eccentric fork 6, thereby reducing the error generated during the adjustment and enabling the adjustment to be more precise.
Meanwhile, the rotation center line 63 of the swing eccentric fork and the presser foot swing shaft 3 are on the same axis, and the swing eccentric fork 6 is directly sleeved on the presser foot swing shaft 3, so that the transmission structure from the cam assembly 52 to the adjusting swing seat 21 is simplified, and meanwhile, the center of the motion track of the adjusting end 211 of the adjusting swing seat 21 and the presser foot swing shaft 3 are on the same axis, so that the calculation model of the interaction quantity is simplified.
The presser foot lifting shaft 4 in this patent is explained below; as shown in fig. 2, 6 and 7, on the first cam 52a, the first working curved surface 521 includes a holding working curved surface 521a, a rising working curved surface 521b with gradually increasing height, and a falling working curved surface 521c with decreasing height drop; the holding working curved surface 521a is opposite to the eccentric portion of the second eccentric wheel 52b, that is, the holding working curved surface 521a and the eccentric portion are in the same direction and have the same radian, and the direction is changed along with the rotation of the stepping motor 51.
Further, a left pressure lifting crank 41 is installed at the left end of the pressure foot lifting shaft 4, a right pressure lifting crank 42 is installed at the right end of the pressure foot lifting shaft 4, the right pressure lifting crank 42 extends towards the first working curved surface 521 and is installed with a roller 421, and the roller 421 abuts against the first working curved surface 521; the movable end of the left pressure lifting crank 41 is hinged with a pressure lifting foot connecting rod 43, and the pressure lifting foot connecting rod 43 drives the inner pressure foot and the outer pressure foot to move upwards integrally; when the holding curved surface 521a abuts against the roller 421, the inner presser foot and the outer presser foot are in a pressing-down state, and at this time, sewing work can be performed; when the stepping motor 51 rotates to drive the first cam 52a to rotate, the rising working curved surface 521b on the first cam 52a sequentially contacts the roller 421, and as the height of the rising working curved surface 521b is continuously increased, the rising working curved surface 521b pushes the right pressure lifting crank 42 to move downwards and drives the pressure foot lifting shaft 4 to rotate, so that the left pressure lifting crank 41 at the other end moves upwards, and when the highest point of the rising working curved surface 521b is reached, the inner pressure foot and the outer pressure foot are lifted. When the first cam 52a continues to rotate forward to the descending working curved surface 521c, the height of the descending working curved surface 521c is lower than that of the ascending working curved surface 521b in a falling manner, and the descending working curved surface corresponds to the pressing of the presser foot.
Further, a manual lifting crank 44 is rotatably mounted at the rear side of the frame 7, a lifting cam 441 is mounted at the inner end of the manual lifting crank 44, a shifting block 45 is arranged at the middle part of the presser foot lifting shaft 4, and the lifting cam 441 abuts against the shifting block 45 and drives the presser foot lifting shaft 4 to rotate. As shown in fig. 6, the shifting block 45 is a stud penetrating through the presser foot lifting shaft 4, the shape of the lifting cam 441 is substantially the same as that of the first cam 52a, and when the lifting crank is pressed to press the shifting block 45 or make the shifting block rebound, so as to realize the lifting or lowering of the inner and outer presser feet.
The above embodiments are only preferred embodiments of the present patent, and the protection scope of the present patent is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the patent shall be covered by the protection scope of the patent.
Claims (6)
1. The mutual quantity regulation and presser foot lifting mechanism for inner and outer presser feet of sewing machine comprises
A frame (7);
the main shaft (1) rotates at a high speed along with the motor of the main shaft (1);
a cross conversion mechanism (2) for converting the rotation of the main shaft (1) into the reciprocating swing of the presser foot swing shaft (3); the interaction conversion mechanism (2) comprises an adjusting swing seat (21), and the adjusting swing seat (21) is used for adjusting the swing range of the presser foot swing shaft (3) transmitted by the main shaft (1);
the presser foot swing shaft (3) is used for driving the interaction of the inner presser foot and the outer presser foot;
the presser foot lifting shaft (4) is used for driving the inner presser foot and the outer presser foot to lift or descend;
the driving mechanism (5) comprises a stepping motor (51) arranged on the head of the sewing machine, a cam component (52) is arranged on a motor shaft of the stepping motor (51), and the cam component (52) is provided with a first working curved surface (521) and a second working curved surface (522); the first working curved surface drives the presser foot lifting shaft (4) to complete the work of lifting the presser foot, and the second working curved surface (522) is used for driving and adjusting the swing seat (21);
it is characterized in that the preparation method is characterized in that,
the presser foot swing shaft (3) is rotatably provided with a swing eccentric fork (6), and the rotating center line of the swing eccentric fork (6) is the same with the axis of the presser foot swing shaft (3);
the front part of the swing eccentric fork (6) faces the cam component (52) and is matched with a second working curved surface (522); when the cam component (52) rotates, the second working curved surface (522) positioned at the upper side is attached to the inner wall of the upper fork part (61) of the swinging eccentric fork (6), and the second working curved surface (522) positioned at the lower side is attached to the inner wall of the lower fork part (62) of the swinging eccentric fork (6);
the tail part of the swing eccentric fork (6) is provided with a swing rod pin (22), and the other end of the swing rod pin (22) is rotatably arranged at an adjusting end (211) of the adjusting swing seat (21).
2. The inside and outside presser foot mutual quantity adjustment and presser foot lifting mechanism of sewing machine according to claim 1, wherein said cam assembly (52) comprises a first cam (52a) and a second eccentric (52b) mounted on a motor shaft, a tread of the first cam (52a) is said first working curved surface (521), and a tread of the second eccentric (52b) is said second working curved surface (522).
3. The inner and outer presser foot interaction amount adjusting and presser foot lifting mechanism of a sewing machine as claimed in claim 1, wherein a first eccentric wheel (11) is mounted on the main shaft (1), and a first adjusting connecting rod (12) is sleeved on the first eccentric wheel (11); the swing end (121) of the first adjusting connecting rod, the swing end (212) of the adjusting swing seat and the front end of the bridge-shaped connecting rod (23) are coaxially hinged, the tail end of the bridge-shaped connecting rod (23) is hinged to a right swing crank (24), and the right swing crank (24) is sleeved on the presser foot swing shaft (3).
4. The inside and outside presser foot interaction amount adjusting and presser foot lifting mechanism of a sewing machine according to claim 1, wherein a left presser crank (41) is installed at the left end of the presser foot lifting shaft (4), and a right presser crank (42) is installed at the right end of the presser foot lifting shaft (4);
the right pressure lifting crank (42) extends towards the first working curved surface (521) and is provided with a roller (421), and the roller (421) abuts against the first working curved surface (521);
the movable end of the left pressure lifting crank (41) is hinged with a pressure lifting and pressing foot connecting rod (43).
5. The inside and outside presser foot interaction amount adjustment and presser foot lifting mechanism of a sewing machine according to claim 4, characterized in that a manual lifting crank (44) is rotatably installed at the rear side of the frame (7), a lifting cam (441) is installed at the inner end of the manual lifting crank (44), a shifting block (45) is arranged at the middle part of the presser foot lifting shaft (4), and the lifting cam (441) abuts against the shifting block (45) and drives the presser foot lifting shaft (4) to rotate.
6. The inner and outer presser foot interaction amount adjustment and presser foot lifting mechanism of a sewing machine according to claim 4, wherein said first working curved surface (521) comprises a holding working curved surface (521a), a rising working curved surface (521b) with gradually increasing height, and a falling working curved surface (521c) with decreasing height drop; the holding working curved surface (521a) and the eccentric curved surface in the second eccentric wheel (52b) face the same direction and have the same radian.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110591265.3A CN113174707A (en) | 2021-05-28 | 2021-05-28 | Internal and external presser foot interaction quantity adjusting and presser foot lifting mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110591265.3A CN113174707A (en) | 2021-05-28 | 2021-05-28 | Internal and external presser foot interaction quantity adjusting and presser foot lifting mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113174707A true CN113174707A (en) | 2021-07-27 |
Family
ID=76927194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110591265.3A Pending CN113174707A (en) | 2021-05-28 | 2021-05-28 | Internal and external presser foot interaction quantity adjusting and presser foot lifting mechanism of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113174707A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6073567A (en) * | 1997-05-09 | 2000-06-13 | Kabushikikaisha Barudan | Presser foot device for a sewing machine |
| CN110804806A (en) * | 2019-12-06 | 2020-02-18 | 汇宝科技集团有限公司 | Sewing machine presser foot interaction quantity adjusting device |
| CN111648053A (en) * | 2020-07-02 | 2020-09-11 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN112195571A (en) * | 2020-10-28 | 2021-01-08 | 汇宝科技集团有限公司 | Lift presser foot and mutual volume adjusting device of presser foot |
| CN112226929A (en) * | 2020-10-07 | 2021-01-15 | 浙江杜马缝纫机股份有限公司 | Flush joint machine |
| WO2021057216A1 (en) * | 2019-09-24 | 2021-04-01 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN215440912U (en) * | 2021-05-28 | 2022-01-07 | 浙江杜马缝纫机股份有限公司 | Internal and external presser foot interaction quantity adjusting and presser foot lifting mechanism of sewing machine |
-
2021
- 2021-05-28 CN CN202110591265.3A patent/CN113174707A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6073567A (en) * | 1997-05-09 | 2000-06-13 | Kabushikikaisha Barudan | Presser foot device for a sewing machine |
| WO2021057216A1 (en) * | 2019-09-24 | 2021-04-01 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN110804806A (en) * | 2019-12-06 | 2020-02-18 | 汇宝科技集团有限公司 | Sewing machine presser foot interaction quantity adjusting device |
| CN111648053A (en) * | 2020-07-02 | 2020-09-11 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN112226929A (en) * | 2020-10-07 | 2021-01-15 | 浙江杜马缝纫机股份有限公司 | Flush joint machine |
| CN112195571A (en) * | 2020-10-28 | 2021-01-08 | 汇宝科技集团有限公司 | Lift presser foot and mutual volume adjusting device of presser foot |
| CN215440912U (en) * | 2021-05-28 | 2022-01-07 | 浙江杜马缝纫机股份有限公司 | Internal and external presser foot interaction quantity adjusting and presser foot lifting mechanism of sewing machine |
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