CN213951548U - Sewing machine and presser foot lifting mechanism thereof - Google Patents
Sewing machine and presser foot lifting mechanism thereof Download PDFInfo
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- CN213951548U CN213951548U CN202023079797.9U CN202023079797U CN213951548U CN 213951548 U CN213951548 U CN 213951548U CN 202023079797 U CN202023079797 U CN 202023079797U CN 213951548 U CN213951548 U CN 213951548U
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Abstract
The utility model discloses a sewing machine and lift presser foot mechanism thereof lifts presser foot mechanism and includes the drive pivot, sets firmly in the drive cam of drive pivot and the link assembly that links to each other with the presser foot, and the drive cam has set firmly driving lever. When the driving cam rotates in the positive direction, the outer contour of the driving cam is abutted against an abutting wheel arranged on the connecting rod assembly so that the connecting rod assembly adjusts the pressure of the presser foot; when the driving cam rotates reversely, the driving lever is driven to abut against a shifting lever arranged on the connecting rod assembly so that the connecting rod assembly lifts the presser foot. The driving rotating shaft and the connecting rod assembly transmit torque through the driving cam, and larger torque is stably transmitted by using the driving cam, so that the occupied space is reduced, and the structure is more compact; the driving cam is arranged to reduce the driving force output by the motor connected with the driving rotating shaft, reduce the influence of the fluctuation of the motor on the pressure of the presser foot, and enable the pressure of the presser foot to change stably, thereby stably adjusting the pressure of the presser foot.
Description
Technical Field
The utility model relates to a sewing machine technical field, in particular to sewing machine and lift presser foot mechanism thereof.
Background
The presser foot of the sewing machine is rhythmically lifted in cooperation with the feed dog to realize cloth conveying. When the presser foot falls down, the cloth is pressed tightly, so that the cloth is not easy to shrink. Considering the difference of the thickness of the cloth, the pressure of the presser foot needs to be properly adjusted when sewing, so that the pressure of the presser foot is matched with the thickness of the cloth, and a good sewing effect is obtained.
The existing sewing machine is generally provided with a presser foot lifting mechanism which can simultaneously play two roles of lifting a presser foot and adjusting the pressure of the presser foot. The existing presser foot lifting mechanism comprises a connecting rod assembly and a driving motor, wherein the connecting rod assembly is connected with the presser foot through a cylindrical spring, the driving motor is directly connected with the connecting rod assembly, and the driving motor drives the connecting rod assembly to act so that the connecting rod assembly adjusts the elastic force of the cylindrical spring and further adjusts the pressure applied to the presser foot by the cylindrical spring. However, for the existing presser foot lifting mechanism, in order to ensure that the elastic force applied by the cylindrical spring is large enough, the length of the connecting rod in the connecting rod assembly needs to be increased, so that the presser foot lifting mechanism is large in size, large in occupied space and not beneficial to compact structure; or, the motor with larger power is replaced, the occupied space is further increased, and the motor needs to continuously maintain larger driving force, so that the pressure of the presser foot is influenced by the fluctuation of the torque of the motor, and the pressure of the presser foot is kept extremely unstable.
Therefore, how to optimize the structure of the presser foot lifting mechanism to achieve the lifting, the compactness and the pressure stability of the presser foot are technical problems to be solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a sewing machine and lift presser foot mechanism thereof adds drive cam at drive pivot and link assembly, drives the link assembly action through the butt wheel during drive cam forward rotation and in order to adjust presser foot pressure, and drive driving lever drives link assembly action through the poker rod when drive cam forward rotation and in order to realize lifting the presser foot, and the structure is compacter, and presser foot pressure is more stable.
The specific scheme is as follows:
the utility model provides a sewing machine lift presser foot mechanism, include:
driving the rotating shaft;
the driving cam is fixedly arranged on the driving rotating shaft, and a driving deflector rod is fixedly arranged on the driving cam;
a connecting rod component connected with the presser foot;
when the driving cam rotates in the positive direction, the outer contour of the driving cam is abutted against an abutting wheel arranged on the connecting rod assembly so that the connecting rod assembly adjusts the pressure of the presser foot;
when the driving cam rotates reversely, the driving lever is driven to abut against a shifting lever arranged on the connecting rod assembly so that the connecting rod assembly lifts the presser foot.
Preferably, the driving cam is provided with an avoiding gap which is used for accommodating the abutting wheel when the driving deflector rod abuts against the poke rod so as to enable the pressure foot lifting action and the pressure foot pressure adjusting action to be carried out independently.
Preferably, the connecting rod assembly further comprises a support plate, and the connecting rod assembly comprises:
the driving connecting rod is hinged with the supporting plate;
a driven connecting rod used for being connected with the presser foot in a sliding way;
and the middle connecting rod is hinged between the driving connecting rod and the driven connecting rod.
Preferably, still including being used for compressing tightly the pole with the presser foot links firmly mutually, compress tightly the pole and be equipped with the sliding sleeve, be equipped with between sliding sleeve and the driven connecting rod mutually supporting so that the driven connecting rod drives sliding sleeve along compressing tightly gliding sliding tray of pole and sliding block.
Preferably, the compressing rod is fixedly sleeved with a lower fixing sleeve, and the compressing rod further comprises a lower elastic part which is sleeved on the compressing rod and abutted between the lower fixing sleeve and the sliding sleeve so as to adjust the elastic force applied to the compressing rod.
Preferably, the pressing rod is fixedly provided with an upper fixed sleeve which is abutted against the sliding sleeve to drive the pressing rod to lift the pressing foot.
Preferably, compress tightly the pole top and set for adjusting nut, still include the cover in compressing tightly the pole and butt in last fixed cover and adjusting nut between last elastic component.
Preferably, the driving connecting rod and the intermediate connecting rod are hinged through a poke rod.
Preferably, the driving cam is integrally connected to the driver.
The utility model provides a sewing machine, including above-mentioned arbitrary one lift presser foot mechanism.
Compared with the prior art, the utility model provides a sewing machine lift presser foot mechanism, including drive pivot, drive cam and link assembly, drive cam sets firmly in with the drive pivot, and drive cam rotates along with the drive pivot is synchronous, and link assembly links to each other with the presser foot. The connecting rod assembly is provided with a butting wheel, when the driving cam rotates in the forward direction, the outer contour of the driving cam is butted against the butting wheel, and the driving cam drives the connecting rod assembly to swing in the forward direction through the butting wheel, so that the connecting rod assembly adjusts the pressure of the presser foot; the connecting rod assembly is further provided with a poking rod, the driving cam is fixedly provided with a driving poking rod, when the driving cam rotates reversely, the driving poking rod rotates synchronously along with the driving cam, the driving poking rod abuts against the poking rod, and the driving poking rod drives the connecting rod assembly to swing reversely through the poking rod, so that the pressing foot is driven by the connecting rod assembly to be lifted.
Obviously, in the utility model, the driving rotating shaft and the connecting rod assembly are prevented from directly contacting through the driving cam to transmit torque, and the driving cam is utilized to stably transmit larger torque, thereby being beneficial to reducing the rod length of the connecting rod assembly or the power of a motor, playing a positive role in reducing the occupied space and being beneficial to more compact structure; furthermore, the arrangement of the driving cam can reduce the driving force output by a motor connected with the driving rotating shaft, reduce the influence of the fluctuation of the motor on the pressure of the presser foot, and enable the pressure of the presser foot to change stably, thereby stably adjusting the pressure of the presser foot. Therefore, the utility model provides a sewing machine lift presser foot mechanism can promote compact structure nature and presser foot pressure stability simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a structural diagram of a presser foot lifting mechanism of a sewing machine according to an embodiment of the present invention;
FIG. 2 is a state diagram of the driving lever of FIG. 1 abutting against the shifting lever;
FIG. 3 is an assembly view of the slide block and the slide groove of FIG. 1;
fig. 4 is a state diagram of the presser foot lifting mechanism of the sewing machine according to the embodiment of the present invention when the presser foot pressure reaches the maximum.
The reference numbers are as follows:
the device comprises a driving motor 1, a driving cam 2, a connecting rod assembly 3, a supporting plate 4, a pressing rod 5, a sliding sleeve 6, a lower fixing sleeve 7, a lower elastic piece 8, an upper fixing sleeve 9, an adjusting nut 10, an upper elastic piece 11 and a sliding block 12;
a drive shaft 101;
a driving shift lever 21 and an avoidance notch 22;
a tap lever 30, an abutment wheel 31, a driving link 32, a driven link 33 and an intermediate link 34.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 4, fig. 1 is a structural diagram of a presser foot lifting mechanism of a sewing machine according to an embodiment of the present invention; FIG. 2 is a state diagram of the driving lever of FIG. 1 abutting against the shifting lever; FIG. 3 is an assembly view of the slide block and the slide groove of FIG. 1; fig. 4 is a state diagram of the presser foot lifting mechanism of the sewing machine according to the embodiment of the present invention when the presser foot pressure reaches the maximum.
The embodiment of the utility model discloses sewing machine lifts presser foot mechanism, its key improvement point lies in addding drive cam 2 between drive pivot 101 and link assembly 3, makes the structure compacter, and presser foot pressure is more stable.
First, it should be noted that all the directional terms in the text are based on the current view of fig. 1.
The utility model discloses a drive pivot 101, drive cam 2 and link assembly 3. In this particular embodiment, the drive shaft 101 may be driven by a motor, and the drive shaft 101 may specifically be an output shaft of the drive motor 1. Of course, the driving shaft 101 may be driven by an electromagnet or other driving member.
The driving cam 2 is fixedly arranged on the driving rotating shaft 101, and the driving cam 2 and the driving rotating shaft 101 can be in key-slot connection or interference connection. Correspondingly, the connecting rod assembly 3 is arranged on the abutting wheel 31, and the abutting wheel 31 abuts against the driving cam 2, so that the driving cam 2 drives the connecting rod assembly 3 to move through the abutting wheel 31. The connecting rod component 3 is indirectly connected with the presser foot, so that the connecting rod component 3 drives the presser foot to act. The construction of the connecting-rod assembly 3 is described in detail below.
When the driving cam 2 rotates in the forward direction, that is, the driving cam 2 rotates counterclockwise, the outer profile of the driving cam 2 pushes the abutting wheel 31 abutting against the outer profile of the driving cam 2 to swing leftward, and the abutting wheel 31 drives the connecting rod assembly 3 to swing in the forward direction, so that the connecting rod assembly 3 adjusts the pressure of the presser foot. When the lowest point of the outer contour of the drive cam 2 abuts against the abutment wheel 31, the pressure of the presser foot is minimal. When the highest point of the outer contour of the driving cam 2 is abutted against the abutting cam, the pressure of the presser foot reaches the maximum.
The connecting rod component 3 is provided with a poking rod 30, the driving cam 2 is fixedly provided with a driving poking rod 21, when the driving cam 2 swings reversely, namely the driving cam 2 rotates clockwise, the driving poking rod 21 rotates synchronously with the driving cam 2, and the driving poking rod 21 drives the connecting rod component 3 to swing reversely through the poking rod 30, so that the presser foot is driven by the connecting rod component 3 to be lifted.
The utility model discloses well drive pivot 101 and link assembly 3 avoid the two direct contact through drive cam 2 transmission moment of torsion, utilize the great moment of torsion of the steady transmission of drive cam 2, are favorable to reducing the pole length of link assembly 3 or the power of motor, are favorable to reducing the volume of link assembly 3 and motor, play positive effect to reducing occupation space, help the structure compacter. Further, the arrangement of the driving cam 2 can reduce the driving force output by the motor connected with the driving rotating shaft 101, reduce the influence of the fluctuation of the motor on the pressure of the presser foot, and enable the pressure of the presser foot to change stably, thereby stably adjusting the pressure of the presser foot. Therefore, the utility model provides a sewing machine lift presser foot mechanism can promote compact structure nature and presser foot pressure stability simultaneously.
The key point is that the outer contour of the driving cam 2 is not in a closed ring shape, the driving cam 2 is provided with an avoiding gap 22, and the avoiding gap 22 is in a sector arc shape. When the driving shift lever 21 abuts against the shift lever 30, the avoidance gap 22 abuts against the abutment wheel 31, and the abutment wheel 31 does not abut against the outer contour of the driving cam 2, so that the connecting rod assembly 3 acts by means of the acting force applied by the driving shift lever 21; conversely, when the outer profile of the drive cam 2 abuts against the abutment wheel 31, the driver rod 21 is not in contact with the tap rod 30, so that the connecting assembly is actuated by the force exerted by the outer profile of the drive profile. The arrangement of the avoiding gap 22 can ensure that the action of lifting the presser foot and the action of adjusting the pressure of the presser foot are carried out independently, avoid the mutual interference of the two actions and be beneficial to accurately adjusting the pressure of the presser foot.
The utility model discloses still include backup pad 4, backup pad 4 is used for supporting driving motor 1.
The utility model discloses well link assembly 3 includes initiative connecting rod 32, driven connecting rod 33 and intermediate link 34, and wherein, the first end of initiative connecting rod 32 is articulated mutually with backup pad 4, provides the support for the rotation of initiative connecting rod 32. The driven link 33 is slidably connected to the presser foot, and the following can be specifically referred to for the connection relationship between the driven link 33 and the presser foot. The intermediate link 34 is hinged between the driving link 32 and the driven link 33 to transmit torque.
When the driving cam 2 rotates in the forward direction, the driving cam 2 pushes the driving link 32 to swing to the left through the abutting wheel 31, the driving link 32 pushes the driven link 33 to rotate counterclockwise through the intermediate link 34, and the pressure foot pressure is increased. When the driving cam 2 rotates reversely, the driving shift lever 21 rotates along with the driving cam 2 to abut against the shift lever 30, the shift lever 30 pushes the driving connecting rod 32 to swing rightwards, the driving connecting rod 32 pushes the driven connecting rod 33 to rotate clockwise through the middle connecting rod 34, and the presser foot is lifted.
Specifically, the driven link 33 is L-shaped, one end of the driven link 33 is hinged to the intermediate link 34, the other end is slidably connected to the pressing rod 5, and a corner of the driven link 33 is rotatably connected to a transfer shaft provided in the housing, so that the driven link 33 rotates around the transfer shaft.
The utility model discloses still include the compressing tightly pole 5 that links firmly mutually with the presser foot, link assembly 3 drives the presser foot action through compressing tightly pole 5. The pressing bar 5 is connected to the presser foot in a manner known in the art.
The pressing rod 5 is provided with a sliding sleeve 6, and the sliding sleeve 6 can slide along the pressing rod 5. A sliding groove and a sliding block 12 are arranged between the sliding sleeve 6 and the driven connecting rod 33, the sliding groove is matched with the sliding block 12, the rotary motion of the driven connecting rod 33 is rotated to be linear motion, and the sliding sleeve 6 slides linearly along the pressing rod 5. Specifically, sliding block 12 specifically is the square slider that links firmly mutually with driven connecting rod 33, and the sliding tray specifically is the rectangle spout of locating the sliding sleeve 6 outside, of course, and the position that sets up of exchanging sliding tray and sliding block 12 does not influence the realization the utility model discloses an aim at.
The pressing rod 5 is fixedly sleeved with a lower fixing sleeve 7, so that the lower fixing sleeve 7 and the pressing rod 5 act synchronously. For adjusting the pressure of the presser foot, the utility model discloses still include the butt in the lower elastic component 8 between lower fixed cover 7 and sliding sleeve 6, lower elastic component 8 overlaps on compressing tightly pole 5. When the sliding sleeve 6 moves downwards along the pressing rod 5, the sliding sleeve 6 extrudes the lower elastic part 8, the elastic force applied to the lower fixing sleeve 7 by the lower elastic part 8 is increased, the acting force transmitted to the pressing rod 5 by the lower fixing sleeve 7 is increased, and the pressure of the pressing foot is increased; when the sliding sleeve 6 moves upwards along the pressing rod 5, the lower elastic part 8 restores elastic deformation, the elastic force applied to the lower fixing sleeve 7 by the lower elastic part 8 is reduced, and the pressure of the presser foot is increased. The lower elastic member 8 may be a cylindrical spring in particular.
Compress tightly pole 5 and set firmly fixed cover 9, go up fixed cover 9 and the direct counterbalance of one end that elastic component 8 was kept away from down with sliding sleeve 6, when sliding sleeve 6 moved up to fixed cover 9 counterbalance along compressing tightly pole 5, fixed cover 9 moved up in sliding sleeve 6 promoted, and fixed cover 9 drives compressing tightly pole 5 and shifts up, and the presser foot moves up along compressing tightly pole 5, and the presser foot lifts up. It should be noted that, when adjusting the pressure of the presser foot, the sliding sleeve 6 is kept separated from the upper fixed sleeve 9, and the sliding sleeve 6 does not push the upper fixed sleeve 9 to move upwards.
In order to adjust the pressure of the pressure foot, the top end of the pressing rod 5 is provided with an adjusting nut 10, an upper elastic part 11 is connected between the upper fixing sleeve 9 and the adjusting nut 10 in a butting mode, and the upper elastic part 11 is also sleeved on the pressing rod 5. When the adjusting nut 10 approaches the upper fixing sleeve 9, the upper elastic member 11 is pressed, the elastic force applied to the upper fixing sleeve 9 by the upper elastic member 11 increases, and the force for lifting the presser foot increases. When the adjusting nut 10 is away from the upper fixing sleeve 9, the upper elastic member 11 is restored to be partially elastically deformed, the elastic force applied to the upper fixing sleeve 9 by the upper elastic member 11 is reduced, and the acting force for lifting the presser foot is reduced. The upper elastic member 11 is embodied as a cylindrical spring. To prevent the adjusting nut 10 from slipping, the top end of the pressing rod 5 is provided with a stop flange.
In order to make the structure more compact, the driving connecting rod 32 is hinged with the intermediate connecting rod 34 through the poke rod 30, so that the driving connecting rod 32 and the intermediate connecting rod 34 are prevented from being additionally provided with rotating shafts, and the assembly is convenient. To prevent the active link 32 and the intermediate link 34 from disengaging the tap lever 30, the tap lever 30 is provided with a stop nut. The poke rod 30 is integrally arranged on the support plate 4.
For convenient assembly, the driving cam 2 is integrally connected with the driving lever 21, and meanwhile, the driving lever 21 can be prevented from loosening to generate misoperation. The driver rod 21 extends in the radial direction of the drive cam 2. The poke rod 30 is positioned above the abutting wheel 31 to avoid interference.
Of course, both the drive cam 2 and the abutment wheel 31 may be replaced by gears.
The utility model provides a sewing machine lift the theory of operation of presser foot mechanism as follows:
the driving motor 1 is started to rotate anticlockwise, the driving rotating shaft 101 drives the driving cam 2 to rotate anticlockwise, the outer contour of the driving cam 2 pushes the abutting wheel 31 abutted against the driving cam to swing leftwards, the abutting wheel 31 pushes the driving connecting rod 32 to swing leftwards, the driving connecting rod 32 pushes the driven connecting rod 33 to rotate anticlockwise through the middle connecting rod 34, the driven connecting rod 33 pushes the sliding sleeve 6 to move downwards along the pressing rod 5, the sliding sleeve 6 extrudes the lower elastic part 8, the elastic force applied to the lower fixing sleeve 7 by the lower elastic part 8 is increased along with the elastic force, the acting force transmitted to the pressing rod 5 by the lower fixing sleeve 7 is increased, and the pressure of the pressure foot is increased;
the driving motor 1 is started to rotate clockwise, the driving rotating shaft 101 drives the driving cam 2 to rotate clockwise until the driving lever 21 abuts against the poke rod 30, the driving lever 21 pushes the driving connecting rod 32 to swing rightwards through the poke rod 30, the driving connecting rod 32 pushes the driven connecting rod 33 to rotate clockwise through the middle connecting rod 34, the moving connecting rod 33 pushes the sliding sleeve 6 to move upwards along the pressing rod 5, the sliding sleeve 6 pushes the upper fixing sleeve 9 to move upwards, the upper fixing sleeve 9 drives the pressing rod 5 to move upwards, the presser foot moves upwards along with the pressing rod 5, and the presser foot is lifted up.
The utility model provides a sewing machine, lift presser foot mechanism including the aforesaid, have the same beneficial effect.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A presser foot lifting mechanism of a sewing machine is characterized by comprising:
a drive shaft (101);
the driving cam (2) is fixedly arranged on the driving rotating shaft (101), and a driving deflector rod (21) is fixedly arranged on the driving cam (2);
a connecting rod component (3) connected with the presser foot;
when the driving cam (2) rotates forwards, the outer contour of the driving cam (2) abuts against an abutting wheel (31) arranged on the connecting rod assembly (3) so that the connecting rod assembly (3) adjusts the pressure of the presser foot;
when the driving cam (2) rotates reversely, the driving deflector rod (21) is abutted against a deflector rod (30) arranged on the connecting rod component (3) so that the connecting rod component (3) lifts the presser foot.
2. The presser foot lifting mechanism of sewing machine according to claim 1, wherein said driving cam (2) is provided with an escape notch (22), said escape notch (22) being adapted to accommodate said abutment wheel (31) when said driving lever (21) abuts against said lever (30) so that the presser foot lifting action and the presser foot pressure adjusting action are performed separately.
3. The presser foot lifting mechanism of sewing machine according to claim 2, further comprising a support plate (4), said link assembly (3) comprising:
a driving connecting rod (32) hinged with the supporting plate (4);
a driven connecting rod (33) connected with the presser foot in a sliding way;
an intermediate link (34) hinged between the driving link (32) and the driven link (33).
4. The presser foot lifting mechanism of a sewing machine according to claim 3, further comprising a pressing rod (5) for being fixedly connected with a presser foot, wherein the pressing rod (5) is provided with a sliding sleeve (6), and a sliding groove and a sliding block (12) which are mutually matched are arranged between the sliding sleeve (6) and the driven connecting rod (33) so that the driven connecting rod (33) drives the sliding sleeve (6) to slide along the pressing rod (5).
5. The presser foot lifting mechanism of a sewing machine according to claim 4, wherein said presser bar (5) is fixedly sleeved with a lower fixing sleeve (7), further comprising a lower elastic member (8) sleeved on said presser bar (5) and abutting between said lower fixing sleeve (7) and said sliding sleeve (6) to adjust an elastic force applied to said presser bar (5).
6. The presser foot lifting mechanism of sewing machine according to claim 4, wherein said presser bar (5) is fixedly provided with an upper fixing sleeve (9) which abuts against said sliding sleeve (6) to drive said presser bar (5) to lift the presser foot.
7. The presser foot lifting mechanism of sewing machine according to claim 6, wherein said presser bar (5) has a top end provided with an adjusting nut (10), and further comprising an upper elastic member (11) sleeved on said presser bar (5) and abutting between said upper fixing sleeve (9) and said adjusting nut (10).
8. Presser foot lifting mechanism according to claim 3, wherein the active link (32) and the intermediate link (34) are hinged by means of the toggle lever (30).
9. The presser foot lifting mechanism of sewing machine according to any of claims 1 to 8, wherein said driving cam (2) is integrally connected to said driving lever (21).
10. A sewing machine comprising a presser foot lifting mechanism as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023079797.9U CN213951548U (en) | 2020-12-17 | 2020-12-17 | Sewing machine and presser foot lifting mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023079797.9U CN213951548U (en) | 2020-12-17 | 2020-12-17 | Sewing machine and presser foot lifting mechanism thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213951548U true CN213951548U (en) | 2021-08-13 |
Family
ID=77193470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023079797.9U Active CN213951548U (en) | 2020-12-17 | 2020-12-17 | Sewing machine and presser foot lifting mechanism thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213951548U (en) |
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2020
- 2020-12-17 CN CN202023079797.9U patent/CN213951548U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 318000 no.1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318014 No. 1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee before: JACK SEWING MACHINE Co.,Ltd. |
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| CP03 | Change of name, title or address |