CN107237055A - A kind of presser foot of sewing machine - Google Patents
A kind of presser foot of sewing machine Download PDFInfo
- Publication number
- CN107237055A CN107237055A CN201710674666.9A CN201710674666A CN107237055A CN 107237055 A CN107237055 A CN 107237055A CN 201710674666 A CN201710674666 A CN 201710674666A CN 107237055 A CN107237055 A CN 107237055A
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- CN
- China
- Prior art keywords
- presser
- presser foot
- swing
- sewing machine
- swing component
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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
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/06—Presser feet
Abstract
The invention provides a kind of presser foot of sewing machine, belong to sewing machine technique field.It solves that existing presser feet drive mechanism is easy to wear, life-span low technical problem.This presser foot includes swing component, pull bar, vertically arranged presser bar and the presser foot component for being connected to presser bar lower end for driving swing component to swing, upgrade block is installed with presser bar, having on upgrade block has the roller being resisted against on the downside of guide plate on the guide plate overhang to presser bar, swing component；The end of pull bar is connected with swing arm, and presser foot also includes that the actuator for swinging arm swing can be driven.It is rolling friction between roller and guide plate in the present invention on swing component, relative motion is smooth between the two, presser foot lifter action is more reliable and more stable, and reduces abrasion and noise, improves its service life.
Description
Technical field
The invention belongs to technical field of sewing equipment, it is related to a kind of presser foot of sewing machine.
Background technology
Sewing machine is to use one or more sewing thread, and one or more stitchings are formed on sewing, one or more layers is stitched
The machine that material interweaves or united by a seam.Presser feet is the important component in sewing machine, and it can play compression and sewing cloth is treated in positioning
The function of material, to facilitate accurate and efficient sewing cloth.Sewing machine in the course of the work, often completes one section of stitching, it is necessary to
Presser feet is lifted, goes to complete this action, it is necessary to bestow larger torque by manpower knee or manual actuation machinery, and sewing
The frequency of machine presser feet in the course of the work is higher, and this can bring substantial amounts of workload, thus people design it is various types of
Automatic needle-foot-lifting mechanism, the lifting of presser feet is driven by pneumatically or electrically.But the lifting presser foot having in the market
External hanging type is generally carried on the back using the back of the body, its is complicated, the bodily form is big, take up space, dismantle it is inconvenient and unsightly.
China's patent (publication number：CN 203668644U, publication date：2014.06.25) disclose a kind of sewing machine from
Dynamic presser foot lifting device, including casing, presser foot component, the electromagnet that is arranged in casing, and for connecting presser foot component and electricity
The link assembly of magnet, link assembly includes pull bar, for the presser foot lifter Qian Gang pavilions that are connected with presser foot component and for electricity
Lever is separately positioned on two ends and the difference of pull bar after lever and presser foot lifter before lever after the presser foot lifter that magnet is connected, presser foot lifter
It is hinged on by preceding axial screw and rear axial screw in casing, the rear end of lever is provided with a roller, electromagnet after presser foot lifter
On be provided with the push rod that can be moved up and down, top pavilion is arranged on the lower section of roller.
When driving presser feet by the iron core of electromagnet in above-mentioned patent, lever is lifting presser feet axle before presser foot lifter in the structure
When can produce larger frictional force between the two, and whole drive mechanism can also produce larger inertial collision, cause the lift
Foot device noise is big and easy vibration abrasion；In addition, its related bar linkage structure is complex, action delay can be produced, respectively
The tie point design of individual part is not accurate enough, it is impossible to ensure the reliability of presser feet lifting action.
The content of the invention
There is provided a kind of presser foot of sewing machine, institute of the present invention for above mentioned problem of the invention for the presence of existing technology
The technical problem to be solved is：How to improve the reliability of sewing machine presser foot structure and improve its service life.
The purpose of the present invention can be realized by following technical proposal：
A kind of presser foot of sewing machine, including swing component, for driving pull bar that the swing component swings, it is vertically arranged
Presser bar and be connected to the presser foot component of the presser bar lower end, be installed with upgrade block on the presser bar, it is characterised in that
Have to have on the guide plate overhang to presser bar, the swing component on the upgrade block and be resisted against on the downside of the guide plate
Roller；The end of the pull bar is connected with swing arm, and the presser foot also includes that the drive of the swing arm swing can be driven
Moving part.
Its operation principle is as follows：Actuator can be arranged in the casing of sewing machine in the technical program, and presser bar is slided
It is arranged at the head of sewing machine, actuator, which drives, swings arm swing, swing arm drives the movement of pull bar linear reciprocation, pull bar band again
Movable pendulum moving part is swung, so as to drive the roller on swing component to be swung up；When roller is swung up, withstands guide plate and drive it
Move up, and then drive upgrade block, presser bar and presser foot component to move up；During reset, moved after the output shaft of actuator
Or driving force revocation, upgrade block, presser bar and presser foot component are under self gravitation effect or dynamic clamping head and quiet clamping head effect to moving down
It is dynamic, realize pushing for presser foot component.Actuator pioneer movable pendulum movable arm swinging in the technical program, then swing component is driven by pull bar
Swing, and then drive the action of guide plate, during this long-distance transmission, driving force effect moves it on a swing arm
Action repeats to pass to swing component, it is ensured that the harmony and uniformity of action, so as to which the accurate of driving force is effectively ensured
Reliable delivery so that presser foot lifter action is relatively reliable；Meanwhile, when swing component is swung, pass through the roller and upgrade block on swing component
On guide plate be in contact, it is rolling friction to form when rolling connection, mutually motion produce between the two, reduces presser feet and carries
Abrasion and noise when rising, improve service life, and operation is more smooth, further increases the stabilization of pressure foot lifting action
Reliability.
In the presser foot of above-mentioned sewing machine, there is connecting shaft on the swing component, the inner of the connecting shaft connects
It is connected on the swing component, the outer end of connecting shaft is connected with jump ring；The roller is set in the connecting shaft and positioned at described
Between swing component and the jump ring, the side of the guide plate is towards the side of the swing component, and opposite side is towards the jump ring.
So it is easy to the installation of roller, simultaneously because roller and guide plate are stuck between swing component and jump ring, guide plate and roller
Contact is not in deviation, and roller is more reliable and more stable in jacking guide plate.
In the presser foot of above-mentioned sewing machine, the guide plate is flat with indent respectively towards the side of the jump ring
Face and protrusion plane；A part for the jump ring just to the interior concave plane, another part just to it is described protrusion plane and with institute
Protrusion plane is stated mutually to recline；The downside of the guide plate has against plane one.Swing component is when swinging, jump ring and guide plate meeting
There is relative motion, the contact area between jump ring and guide plate is reduced by said structure, so as to reduce abrasion, raising uses the longevity
Life.
In the presser foot of above-mentioned sewing machine, the side of the guide plate towards the swing component has step spacing
Face one；The swing component has the step confined planes two relative with the step confined planes one towards the side of the guide plate；
When the swing component resets, the step confined planes one lean with step confined planes two.Presser bar declines, swing component resets
Afterwards, step confined planes one lean with step confined planes two, it is ensured that the accurate reliability of swing component position, so as to improve whole pressure
Leg structure it is reliable and stable.
In the presser foot of above-mentioned sewing machine, the swing arm is in be hinged in the middle part of strip, the swing arm
On the casing of sewing machine, the actuator is electromagnet, and one end of the swing arm has the contact site and the electromagnetism of arc
The iron core outer end of iron leans with the contact site, and one end end of the other end of the swing arm and the pull bar is hinged.
The electromagnet can be directly anchored on casing, can be also fixed on by pedestal on casing；And casing internal can be arranged on, realize pressure
Leg structure driving is built-in.In use, electromagnet is powered, the iron core of magnet is outwards ejected, and is acted on one end of swing arm, pendulum
Swing arm rotates certain angle, and the other end of swing arm makes pull bar be moved to electromagnet direction, so as to drive swing component to swing, puts
Roller on moving part drives upgrade block, presser bar and presser foot component to move up by guide plate again, realizes automatic needle-foot-lifting
Action.Whole drive mechanism is coherent reliable, and action is precisely controllable.Electromagnet is electromagnet core in consumable accessory, the technical program
It is the non-spacing connection of contact with swing arm, both are abutting contact, are so easy to the installation and replacing of electromagnet；Electromagnet
Iron core be linear motion, the end of swing arm is circular motion, and the end of swing arm has the contact site of arc, so can
Enough ensure to be steadily contacted between electromagnet core and swing arm, can also reduce abrasion during both relative motions, raising is used
Life-span.
As an alternative, actuator can also be cylinder or hydraulic cylinder.
In the presser foot of above-mentioned sewing machine, the pull bar is laterally set, and the swing component is plate-like, described to swing
Part is hinged on the casing of sewing machine, and other end end and the swing component of the pull bar are hinged；The swing component and seam
Thread machine casing junction, the junction of the pull bar and swing component and the connecting shaft and swing component junction be in triangle
Shape is distributed.Entirely the layout of drive mechanism make it that the driving force transmission of actuator is more succinct efficient, is also convenient for whole presser feet knot
The installation of structure, while ensureing the reliability of driving force transmission.
In the presser foot of above-mentioned sewing machine, the presser foot also includes vertically arranged guide rod, described to lead
Offer U-shaped guide groove on to bar downwards by upper end end face, the outer end of the guide plate, which is slided, to be plugged in the guide groove.
Guide plate on upgrade block is always positioned in guide groove when moving up and down, and passes through the spacing of guide groove and guiding, it is possible to increase
Stability, reliability and the accuracy of presser feet action.
In the presser foot of above-mentioned sewing machine, it is additionally provided with the downside of the roller on lift block, the lift block solid
The wrench shaft that the lift block can be driven to swing is connected with, the end of the wrench shaft is fixed with portable spanner；The lift block
Side have against plane two, opposite side has on protuberance, the protuberance and had against plane three；It is described against plane
Two with it is described against the rounding off of plane three.Presser foot in the technical program in addition to can be with automatically controlled automatic driving,
In use, pulling portable spanner, lift block can also be rotated by wrench shaft, on lift block by carrying out presser foot lifter manually
Protuberance formation cam structure, protuberance, which is swung, just can drive the guide plate above roller and roller to move up, so that
Drive upgrade block, presser bar and presser foot component to move up, realize that presser foot lifter is acted.Between roller and lift block and guide plate
It is rolling friction, plays the transmission of torque between lift block and guide plate by roller, transmittance process is reliable and stable, weares and teares
It is small.
In the presser foot of above-mentioned sewing machine, the presser foot component includes presser feet wheel and connector, the presser feet wheel
The lower end of the connector is arranged on, the connector is bolted in the lower end of the presser bar.In the technical program
Presser feet be wheeled presser feet, it is by connector and being bolted on presser bar, ease of assembly and replacing.
In the presser foot of above-mentioned sewing machine, presser bar slip cap on the outer peripheral face of lower end is provided with bar
Set；Presser bar is arranged with regulation spring on the outer peripheral face of upper end, and the upper end of the presser bar is provided with adjusting screw, described to carry
The middle part for being set in the presser bar is seated up, one end of the regulation spring is resisted against on the upgrade block, and the other end is resisted against
In the adjusting screw.Further, the upper end of presser bar is also bolted with locking nut；The power of presser feet is adjusted by adjusting screw
After degree, then fastened by locking nut, kept reliable and stable；Rod set is fixed on head, and presser bar slides and is plugged in bar
In set, by the spacing and guide effect of rod set, the further stability that presser foot component moves back and forth up and down and precisely of improving
Reliability.
Compared with prior art, the Coupled motion mechanism of presser foot is succinctly orderly in the present invention, can realize that presser feet drives
The built-in of structure is moved, while be rolling friction between the roller and guide plate on swing component, relative motion is smooth between the two, lift
Presser feet action is more reliable and more stable, and reduces abrasion and noise, improves its service life.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of this presser foot.
Fig. 2 is the partial enlargement structural representation at A in Fig. 1.
Fig. 3 is the dimensional structure diagram before actuator driving presser foot component lifting in this presser foot.
Dimensional structure diagram when Fig. 4 is actuator driving presser foot component lifting in this presser foot.
In figure, 1, presser bar；2nd, presser foot component；21st, presser feet wheel；22nd, connector；3rd, upgrade block；31st, guide plate；31a、
Interior concave plane；31b, protrusion plane；31c, step confined planes two；31d, against plane one；4th, swing arm；41st, contact site；5th, drive
Moving part；6th, swing component；61st, roller；62nd, jump ring；63rd, connecting shaft；64th, step confined planes one；7th, guide rod；71st, guide groove；8、
Lift block；81st, against plane two；82nd, protuberance；83rd, against plane three；9th, wrench shaft；10th, portable spanner；11st, bullet is adjusted
Spring；12nd, rod set；13rd, adjusting screw；14th, pull bar.
Embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
As shown in Figures 1 to 4, including vertically arranged presser bar 1 and the presser foot component 2 of the lower end of presser bar 1 is connected to, pressure
Being installed with foot lever 1 has the guide plate 31 overhang to presser bar 1 on upgrade block 3, upgrade block 3, presser foot also includes pendulum
Swing arm 4, can drive the actuator 5 swung of swing arm 4, the pull bar 14 that is connected with the end of swing arm 4 and with pull bar 14
The swing component 6 being connected；Swing arm 4, which is swung, to drive swing component 6 to swing by pull bar 14, had on swing component 6 and be resisted against
The roller 61 of the downside of guide plate 31；Presser foot also includes downward by upper end end face on vertically arranged guide rod 7, guide rod 7
U-shaped guide groove 71 is offered, the outer end of guide plate 31, which is slided, to be plugged in guide groove 71；Presser bar 1 is slidably arranged in sewing
At the head of machine.During work, actuator 5 drives swing arm 4 to swing, and swing arm 4 drives the movement of the linear reciprocation of pull bar 14, pull bar 14
Swing component 6 is driven to swing again, so as to drive the roller 61 on swing component 6 to swing up or down；When roller 61 is swung up, top
Firmly guide plate 31 and drive it to move up, and then drive upgrade block 3, presser bar 1 and presser foot component 2 to move up；Roller
61 to lower swing when, upward support force is eliminated, and upgrade block 3, presser bar 1 and presser foot component 2 are moved down.
Further, as shown in Fig. 2 there is connecting shaft 63, the inner of connecting shaft 63 is connected to swing component 6 on swing component 6
On, the outer end of connecting shaft 63 is connected with jump ring 62；Roller 61 be set in connecting shaft 63 and positioned at swing component 6 and jump ring 62 it
Between, the side of guide plate 31 is towards the side of swing component 6, and opposite side is towards jump ring 62；Guide plate 31 is towards the side of jump ring 62
There is interior concave plane 31a and protrusion plane 31b respectively；The just internal concave plane 31a of a part for jump ring, another part is just to protrusion
Plane 31b and with protrusion plane 31b phases recline；The downside of guide plate 31 has against the 31d of plane one.
As shown in figure 3, the side of guide plate 31 towards swing component 6 has step confined planes 1；Swing component 6 is towards guiding
The side of plate 31 has step confined planes two 31c relative with step confined planes 1；When swing component 6 resets, step is spacing
Face 1 leans with the 31c of step confined planes two.
As depicted in figs. 1 and 2, swing arm 4 is in strip, and the middle part of swing arm 4 is hinged on the casing of sewing machine, is driven
Part 5 is electromagnet, and one end of swing arm 4 has the contact site 41 of arc and the iron core outer end of electromagnet offsets with contact site 41
Lean on, the other end of swing arm 4 is hinged with one end end of pull bar 14；Pull bar 14 is laterally set, and swing component 6 is plate-like, is swung
Part 6 is hinged on the casing of sewing machine, and other end end and the swing component 6 of pull bar 14 are hinged；Swing component 6 and sewing machine case
Junction, the junction of pull bar 14 and swing component 6 and connecting shaft 63 and the junction distribution triangular in shape of swing component 6.
Presser foot in the present embodiment in addition to can be with automatically controlled automatic driving, can also by manual presser foot lifter,
As shown in Figure 3 and Figure 4, the downside of roller 61, which is additionally provided with to be fixed with lift block 8, lift block 8, can drive what lift block 8 was swung
Wrench shaft 9, the end of wrench shaft 9 is fixed with portable spanner 10；The side of lift block 8 has against plane 2 81, opposite side tool
Having on protuberance 82, protuberance 82 has against plane 3 83；Against plane 2 81 with against the rounding off of plane 3 83.Use
When, portable spanner 10 is pulled, lift block 8 is rotated by wrench shaft 9, the formation cam structure of protuberance 82 on lift block 8 is convex
Going out portion 82 and swinging can just drive roller 61 and the guide plate 31 of the top of roller 61 to move up, so as to drive upgrade block 3, pressure
Foot lever 1 and presser foot component 2 are moved up, and realize that presser foot lifter is acted.It is rolling between roller 61 and lift block 8 and guide plate 31
Dynamic friction, the transmission of torque is played by roller 61 between lift block 8 and guide plate 31, and transmittance process is reliable and stable, noise
It is small with wearing and tearing.
As shown in Figure 3 and Figure 4, presser foot component 2 includes presser feet wheel 21 and connector 22, and presser feet wheel 21 is arranged on connector 22
Lower end, connector 22 is bolted in the lower end of presser bar 1；Presser bar 1 is slided on the outer peripheral face of lower end and is arranged
There is rod set 12；Presser bar 1 is arranged with regulation spring 11 on the outer peripheral face of upper end, and the upper end of presser bar 1 is provided with adjusting screw
13, upgrade block 3 is set in the middle part of presser bar 1, and one end of regulation spring 11 is resisted against on upgrade block 3, and the other end is resisted against tune
Save on screw 13；The upper end of presser bar 1 is also bolted with locking nut；After the dynamics that presser feet is adjusted by adjusting screw 13, then lead to
Cross locking nut to be fastened, rod set 12 is fixed on head, presser bar 1 is slided and is plugged in rod set 12, passes through rod set 12
Spacing and guide effect, improves stability and accurate reliability that presser foot component 2 is moved back and forth up and down.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Although more having used 1, presser bar herein；2nd, presser foot component；21st, presser feet wheel；22nd, connector；3rd, upgrade block；
31st, guide plate；31a, interior concave plane；31b, protrusion plane；31c, step confined planes two；31d, against plane one；4th, swing arm；
41st, contact site；5th, actuator；6th, swing component；61st, roller；62nd, jump ring；63rd, connecting shaft；64th, step confined planes one；7th, it is oriented to
Bar；71st, guide groove；8th, lift block；81st, against plane two；82nd, protuberance；83rd, against plane three；9th, wrench shaft；10th, it is portable
Spanner；11st, spring is adjusted；12nd, rod set；13rd, adjusting screw；14th, the term such as pull bar, but be not precluded from using other terms can
Can property.It is used for the purpose of more easily describing and explaining the essence of the present invention using these terms；It is construed as any one
Additional limitation is planted all to disagree with spirit of the present invention.
Claims (10)
1. a kind of presser foot of sewing machine, including swing component (6), for drive pull bar (14) that the swing component (6) swings,
It is fixed on vertically arranged presser bar (1) and the presser foot component (2) for being connected to the presser bar (1) lower end, the presser bar (1)
There is upgrade block (3), it is characterised in that there is the guide plate (31) overhang to presser bar (1) on the upgrade block (3), it is described
There is the roller (61) being resisted against on the downside of the guide plate (31) on swing component (6)；The end of the pull bar (14) is connected with pendulum
Swing arm (4), the presser foot also includes the actuator (5) that the swing arm (4) can be driven to swing.
2. the presser foot of sewing machine according to claim 1, it is characterised in that there is connection on the swing component (6)
Axle (63), the inner of the connecting shaft (63) is connected on the swing component (6), and the outer end of connecting shaft (63) is connected with jump ring
(62)；The roller (61) is set in the connecting shaft (63) and is located between the swing component (6) and the jump ring (62),
The side of the guide plate (31) is towards the side of the swing component (6), and opposite side is towards the jump ring (62).
3. the presser foot of sewing machine according to claim 2, it is characterised in that the guide plate (31) is towards the card
The side of spring (62) has interior concave plane (31a) and protrusion plane (31b) respectively；A part for the jump ring is just to the indent
Plane (31a), another part reclines just to the protrusion plane (31b) and mutually with the protrusion plane (31b)；The guide plate
(31) downside has against plane one (31d).
4. the presser foot of the sewing machine according to Claims 2 or 3, it is characterised in that the guide plate (31) is towards institute
Stating the side of swing component (6) has step confined planes one (64)；The swing component (6) has towards the side of the guide plate (31)
There are the step confined planes two (31c) relative with the step confined planes one (64)；When the swing component (6) resets, described
Rank confined planes one (64) lean with step confined planes two (31c).
5. the presser foot of the sewing machine according to Claims 2 or 3, it is characterised in that the swing arm (4) is in strip
It is hinged in the middle part of shape, the swing arm (4) on the casing of sewing machine, the actuator (5) is electromagnet, the swing arm
(4) one end has the contact site (41) of arc and the iron core outer end of the electromagnet leans with the contact site (41), institute
One end end for stating the other end and the pull bar (14) of swing arm (4) is hinged.
6. the presser foot of sewing machine according to claim 5, it is characterised in that the pull bar (14) is laterally set, institute
State swing component (6) plate-like, the swing component (6) is hinged on the casing of sewing machine, the other end end of the pull bar (14)
It is hinged with the swing component (6)；The swing component (6) and junction, the pull bar (14) and the swing component of sewing machine case
(6) junction and the connecting shaft (63) and the junction distribution triangular in shape of swing component (6).
7. the presser foot of the sewing machine according to claim 1 or 2 or 3, it is characterised in that the presser foot also includes
Offer U-shaped guide groove (71) on vertically arranged guide rod (7), the guide rod (7) downwards by upper end end face, it is described to lead
Slide and be plugged in the guide groove (71) to the outer end of plate (31).
8. the presser foot of the sewing machine according to claim 1 or 2 or 3, it is characterised in that the downside of the roller (61)
It is additionally provided with the wrench shaft (9) for being fixed with lift block (8), the lift block (8) and the lift block (8) being driven to swing, institute
The end for stating wrench shaft (9) is fixed with portable spanner (10)；The side of the lift block (8) has against plane two (81), separately
Side has on protuberance (82), the protuberance (82) and had against plane three (83)；It is described against plane two (81) and institute
State against plane three (83) rounding off.
9. the presser foot of the sewing machine according to claim 1 or 2 or 3, it is characterised in that presser foot component (2) bag
Presser feet wheel (21) and connector (22) are included, the presser feet wheel (21) is arranged on the lower end of the connector (22), the connector
(22) it is bolted the lower end in the presser bar (1).
10. the presser foot of the sewing machine according to claim 1 or 2 or 3, it is characterised in that the presser bar (1) is close
Slip cap is provided with rod set (12) on the outer peripheral face of lower end；Presser bar (1) is arranged with regulation spring on the outer peripheral face of upper end
(11), the upper end of the presser bar (1) is provided with adjusting screw (13), and the upgrade block (3) is set in the presser bar (1)
Portion, one end of the regulation spring (11) is resisted against on the upgrade block (3), and the other end is resisted against the adjusting screw (13)
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710674666.9A CN107237055B (en) | 2017-08-09 | 2017-08-09 | Presser foot structure of sewing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710674666.9A CN107237055B (en) | 2017-08-09 | 2017-08-09 | Presser foot structure of sewing machine |
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| CN107237055A true CN107237055A (en) | 2017-10-10 |
| CN107237055B CN107237055B (en) | 2023-08-22 |
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| CN201710674666.9A Active CN107237055B (en) | 2017-08-09 | 2017-08-09 | Presser foot structure of sewing machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109706632A (en) * | 2019-03-08 | 2019-05-03 | 杰克缝纫机股份有限公司 | A kind of control method of sewing-machine automatic needle-foot-lifting |
| CN111733535A (en) * | 2018-12-30 | 2020-10-02 | 浙江中捷缝纫科技有限公司 | Presser foot structure and have its sewing machine |
| WO2021052081A1 (en) * | 2019-09-21 | 2021-03-25 | 浙江翔科缝纫机股份有限公司 | Automatic rear dragging wheel lifting structure on sewing machine |
| WO2021227264A1 (en) * | 2020-05-15 | 2021-11-18 | 杰克缝纫机股份有限公司 | Sewing machine |
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| CN207047492U (en) * | 2017-08-09 | 2018-02-27 | 浙江中捷缝纫科技有限公司 | A kind of presser foot of sewing machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111733535A (en) * | 2018-12-30 | 2020-10-02 | 浙江中捷缝纫科技有限公司 | Presser foot structure and have its sewing machine |
| CN109706632A (en) * | 2019-03-08 | 2019-05-03 | 杰克缝纫机股份有限公司 | A kind of control method of sewing-machine automatic needle-foot-lifting |
| WO2021052081A1 (en) * | 2019-09-21 | 2021-03-25 | 浙江翔科缝纫机股份有限公司 | Automatic rear dragging wheel lifting structure on sewing machine |
| WO2021227264A1 (en) * | 2020-05-15 | 2021-11-18 | 杰克缝纫机股份有限公司 | Sewing machine |
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