CN201043233Y - Automatic thread cutting device of sewing machine - Google Patents
Automatic thread cutting device of sewing machine Download PDFInfo
- Publication number
- CN201043233Y CN201043233Y CNU2007201411054U CN200720141105U CN201043233Y CN 201043233 Y CN201043233 Y CN 201043233Y CN U2007201411054 U CNU2007201411054 U CN U2007201411054U CN 200720141105 U CN200720141105 U CN 200720141105U CN 201043233 Y CN201043233 Y CN 201043233Y
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- China
- Prior art keywords
- tool rest
- sewing machines
- active blade
- automatic tangent
- rotary electric
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- Expired - Fee Related
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Abstract
The utility model relates to an automatic cutting device used for a sewing machine, and primarily comprises a soleplate, a cutting unit and a transmission unit. The cutting unit comprises a cutter holder, a movable blade, a fixed blade, an interlink plate and a switch. The transmission unit comprises a holder body, a rotary electromagnet and an interlink arm. The holder body is fixed on the back end of the cutter holder. The rotary electromagnet is provided with a rotor, and is assembled on the holder body. The rotary electromagnet can be controlled by the switch to turn by a preset angle. The interlink arm is provided with a group of connection ends which are interlinked with the rotor of the electromagnet, a driving end and a movable blade hinge group. Accordingly, when the thread touches the interlink plate, the switch is triggered so that the rotary electromagnet turns to extend the movable blade from the cutter holder through the interlink arm and to achieve the effect of cutting the thread; the cut thread end can be clamped by a clamping unit, and will not drop down.
Description
Technical field
The utility model relates to a kind of Sewing machines automatic tangent apparatus, and it is good, simple in structure particularly to relate to a kind of security, is difficult for fault, and the cutting knife interlock is preferable, but automatic shearing, and line of engagement body thickness is adjusted the device of clamp elasticity with clamping the end of a thread.
Background technology
The modern can wear various clothes to cooperate different occasions and weather environment, or style and taste in order to set off out self, it serves to show the importance of clothes to people, and various garment factory for can provide more, upgrade, more cheap clothes, it is unclear with the inconvenience and the efficient that replace the artificial seam of tradition clothing to introduce various Sewing machiness mostly, design and progress by the various function of Sewing machines not only can provide preferable production efficiency, also can take into account the quality of clothing product.
Because the user who commonly uses Sewing machines, in use need repeatedly to cooperate scissors to shear suture, and need hold the end of a thread simultaneously and prevent to drop, cause operational inconvenience so waste time and energy, also might or be accidentally injured by scissors accidentally because of carelessness, be just to research and develop with the utility model creator to create, in the hope of exempting the disappearance and inconvenience that needs to cooperate the scissors use as Sewing machines automatic tangent improved devices such as TaiWan, China letters patent M274378, M293924;
Though above-mentioned commonly use patented product the user can be provided the function of an automatic tangent, it is not the Sewing machines that is fit to various types, and the utility model creator is in line with excelsior creation spirit, be not satisfied with present situation and before thinking above-mentioned commonly using repeatedly case whether have and can further improve part, thereby develop simple in structure and be applicable to the Sewing machines automatic tangent apparatus of various types Sewing machines, with user's one better facility be provided, be difficult for fault, good, the easy to operate design of security.
Summary of the invention
Main purpose of the present utility model is, overcome the defective that existing sewing machine automatic tangent improved device exists, and provide a kind of novel Sewing machines automatic tangent apparatus, technical problem to be solved is to make it can improve the Sewing machines of commonly using not have automatic tangent apparatus, or automatic tangent apparatus interlock mode is not good, shortcomings such as volume is big, easily fault, security be not good are very suitable for practicality.
The purpose of this utility model and to solve its technical problem be to adopt following technical scheme to realize.According to a kind of Sewing machines automatic tangent apparatus that the utility model proposes, it is characterized in that this automatic tangent apparatus mainly comprises a base plate, one cuts a unit and a gear unit, wherein: this cuts the unit and includes a tool rest, one active blade, one fixed blade, one interlock plate and a switch, this tool rest is fixedly arranged on the base plate, being provided with a chute in the tool rest can be for this active blade along the chute displacement or stretch out, the end face that this tool rest supplies active blade to stretch out on chute is a front end, the tool rest other end then is the rear end, this fixed blade, interlock plate and switch then are arranged at the tool rest front end, and this switch can be triggered by interlock plate; This gear unit includes a pedestal, a rotary electric magnetic iron and a coupled arm, and this pedestal is fixedly arranged on the rear end of tool rest; This rotary electric magnetic iron has a rotating shaft, and rotary electric magnetic iron is mounted on this pedestal, and this rotary electric magnetic iron also can be subjected to the control of switch to do the rotation of predetermined angular; This coupled arm has a connection terminal and rotary electric magnetic iron rotating shaft interlock, and one drives end and active blade pivot group; In view of the above, but by touching interlock plate and trigger switch, make rotary electric magnetic iron rotate seeing through coupled arm again active blade stretched out by tool rest, to reach the effect that cuts.
The purpose of this utility model and solve its technical problem and can also be further achieved by the following technical measures.
Aforesaid Sewing machines automatic tangent apparatus, wherein said tool rest is provided with a control panel, and this control panel is provided with an elastic component, and this elastic component one end also is connected with active blade, after cutting active blade is retracted according to this.
Aforesaid Sewing machines automatic tangent apparatus, the contiguous tool rest front end of wherein said control panel part is provided with a packing assembly and compels active blade to support, and adjusts the snap-in force of active blade and fixed blade according to this.
Aforesaid Sewing machines automatic tangent apparatus, wherein said packing assembly comprise that one adjusts screw, an elastomer and a steel ball.
Aforesaid Sewing machines automatic tangent apparatus, wherein said tool rest front end is provided with a clamp unit, and this clamp unit comprises that one has the fixture block of the cambered surface led, and one and fixture block lead the corresponding curved splint of cambered surface, and these clamping plate and fixture block are enclosed the opening of a flaring, and the effect of tool clamping.
Aforesaid Sewing machines automatic tangent apparatus is provided with a pad between wherein said clamp unit fixture block and clamping plate.
Aforesaid Sewing machines automatic tangent apparatus, wherein said clamping plate are locked on the fixture block with a screw tightening, on these clamping plate and be provided with one and support sheet, should support sheet and can cooperate screw tightening to reach the effect of adjusting clamping plate and fixture block clamping elasticity.
Aforesaid Sewing machines automatic tangent apparatus, connection terminal tool two ears of wherein said coupled arm, this two ear can cooperate a screw tightening packing coupled arm and rotating shaft interlock.
Aforesaid Sewing machines automatic tangent apparatus, it is to be an elongated slot that wherein said coupled arm drives end, this elongated slot can see through a screw tightening and active blade interlock.
The utility model compared with prior art has tangible advantage and beneficial effect.By above technology contents as can be known, for achieving the above object, the utility model provides a kind of Sewing machines automatic tangent apparatus, comprise a base plate, one cuts a unit and a gear unit, this cuts the unit and includes a tool rest, one active blade, one fixed blade, one interlock plate and a switch, this tool rest is to be fixedly arranged on the base plate, being provided with a chute in the tool rest can be for this active blade along the chute displacement or stretch out, the end face that this tool rest supplies active blade to stretch out on chute is a front end, the tool rest other end then is the rear end, this fixed blade, interlock plate and switch then are arranged at the tool rest front end, and this switch can be triggered by interlock plate; This tool rest front end also is provided with a clamp unit, and this clamp unit comprises that one has the fixture block of the cambered surface led, and one and fixture block lead the corresponding curved splint of cambered surface, and these clamping plate and fixture block surround out the opening of a flaring, and the effect of tool clamping; This gear unit includes a pedestal, a rotary electric magnetic iron and a coupled arm, and this pedestal is the rear end that is fixedly arranged on tool rest; This rotary electric magnetic iron has a rotating shaft, and rotary electric magnetic iron is mounted on this pedestal, and this rotary electric magnetic iron also can be subjected to the control of switch to do the rotation of predetermined angular; This coupled arm has a connection terminal and rotary electric magnetic iron rotating shaft interlock, and one drives end and active blade pivot group; In view of the above, but when touching interlock plate, the line body is trigger switch, makes rotary electric magnetic iron rotate active blade is stretched out by tool rest that to reach the effect of cutting line body, the end of a thread after cutting then can not dropped by the clamping of clamp unit through coupled arm.
By technique scheme, the utility model Sewing machines automatic tangent apparatus has following advantage and beneficial effect at least: the utility model is to reach with rotary electric magnetic iron turn one predetermined angle to stretch out the effect that active blade cuts, and this active blade and fixed blade be cut mode linearly, this active blade is in the income tool rest when cutting, so more difficult accidental injury user, security is good; Moreover the moving mode of this rotary electric magnetic sheet iron strip can be exempted the unnecessary lever body of rod, is difficult for fault, more can save the space and conveniently is mounted on the various Sewing machines;
In sum, the utility model relates to a kind of Sewing machines automatic tangent apparatus, it mainly is to comprise a base plate, one cuts a unit and a gear unit, this cuts the unit and includes a tool rest, one active blade, one fixed blade, one interlock plate and a switch, this tool rest is to be fixedly arranged on the base plate, being provided with a chute in the tool rest can be for this active blade along the chute displacement or stretch out, the end face that this tool rest supplies active blade to stretch out on chute is a front end, the tool rest other end then is the rear end, this fixed blade, interlock plate and switch then are arranged at the tool rest front end, and this switch can be triggered by interlock plate; This gear unit includes a pedestal, a rotary electric magnetic iron and a coupled arm, and this pedestal is the rear end that is fixedly arranged on tool rest; This rotary electric magnetic iron has a rotating shaft, and rotary electric magnetic iron is mounted on this pedestal, and this rotary electric magnetic iron also can be subjected to the control of switch to do the rotation of predetermined angular; This coupled arm has a connection terminal and rotary electric magnetic iron rotating shaft interlock, and one drives end and active blade pivot group; In view of the above, but when touching interlock plate, the line body is trigger switch, makes rotary electric magnetic iron rotate active blade is stretched out by tool rest that to reach the effect of cutting line body, the end of a thread after cutting then can not dropped by the clamping of clamp unit through coupled arm.The utlity model has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on product, apparatus structure or function, obvious improvement is arranged technically, and produced handy and practical effect, and the multinomial effect that has enhancement than existing sewing machine automatic tangent improved device, thereby being suitable for practicality more, and having the extensive value of industry, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the utility model Sewing machines automatic tangent apparatus three-dimensional exploded view.
Fig. 2 is 2 the utility model Sewing machines automatic tangent apparatus assembling schematic perspective view.
Fig. 3 is that schematic perspective view is finished in the assembling of the utility model Sewing machines automatic tangent apparatus.
Fig. 4 is another angular views of Fig. 3.
Fig. 5, Fig. 6 are the utility model Sewing machines automatic tangent apparatus rotary electric magnetic iron and active blade illustrative view.
Fig. 7 is a schematic diagram before the utility model Sewing machines automatic tangent apparatus tangent line.
Fig. 8 is another angular views of Fig. 7.
Fig. 9 is a schematic diagram behind the utility model Sewing machines automatic tangent apparatus tangent line.
Figure 10 is another angular views of Fig. 9.
10: base plate 20: cut the unit
21: tool rest 211: chute
212: sliding structure 213: control panel
2131: elastic component 2132: adjust screw
2133: elastomer 2134: steel ball
22: active blade 23: fixed blade
24: interlock plate 25: switch
30: gear unit 31: pedestal
32: rotary electric magnetic iron 321: rotating shaft
33: coupled arm 331: connection terminal
3311: ear 332: drive end
40: clamp unit 41: fixture block
411: lead cambered surface 42: pad
43: clamping plate 44: support sheet
51: screw tightening
The specific embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to its specific embodiment of Sewing machines automatic tangent apparatus, structure, feature and the effect thereof that the utility model proposes, describe in detail as after.
The utility model relates to a kind of Sewing machines automatic tangent apparatus, sees also Fig. 1 to shown in Figure 4, and this its body of Sewing machines automatic tangent apparatus mainly is to comprise that a base plate 10, cuts unit 20, a gear unit 30 and a clamp unit 40, wherein:
This cuts unit 20 is to include a tool rest 21, an active blade 22, a fixed blade 23, an interlock plate 24 and a switch 25; This tool rest 21 be with screw tightening 51 be locked on the base plate 10 with combine, the chute 211 that has perforation two ends in this tool rest 21, this chute 211 is can be ccontaining for active blade 22, makes this active blade 22 can be along chute 211 displacements, or active blade 22 1 ends are stretched out in outside the tool rest 21;
This tool rest 21 that cuts unit 20 is a front end for the end face that active blade 22 stretches out, the other end of tool rest 21 then is the rear end, these tool rest 21 front ends are also established fixed blade 23 with screw tightening 51 lock, and this fixed blade 23 is to be the corresponding form that cooperates with active blade 22, to reach the effect that cuts; And these tool rest 21 front ends have a sliding ditch 212 can be established for 24 groups for interlock plate, and tool rest 21 front ends also are provided with this switch 25, make this interlock plate 24 be touched and trigger switch 25, and this switch 25 then can be controlled gear unit 30, and this switch 25 is to can be a microswitch;
This cuts on the tool rest 21 of unit 20 and is provided with a control panel 213, be installed with an elastic component 2131 on this control panel 213, these elastic component 2,131 one ends then are connected with active blade 22, and this elastic component 2131 of mat makes active blade 22 retract when not being subjected to external force in retraction tool rest 21 chutes 211; On this control panel 213 and be provided with a packing assembly, this packing assembly comprises that a spiral shell is located at one on the control panel 213 and adjusts screw 2132, an elastomer 2133 and a steel ball 2134, the front end of the contiguous tool rest 21 of this packing assembly, can change elastic component 2131 by turn adjustment screw 2132 and see through the pushing and pressing power that steel ball 2134 imposes on active blade 22, adjust the snap-in force of active blade 22 and fixed blade 23 according to this;
This gear unit 30 is to include a pedestal 31, a rotary electric magnetic iron 32 and a coupled arm 33; This pedestal 31 is the rear ends that are locked on tool rest 21 with screw tightening 51, and this rotary electric magnetic iron 32 is to be positioned on this pedestal 31, and is subjected to the control of switch 25 and makes the rotating shaft 321 of rotary electric magnetic iron 32 do the rotation of predetermined angular;
The coupled arm 33 of this gear unit 30 is to have a connection terminal 331 and to drive end 332, this connection terminal 331 is can be sheathed for 32 rotating shafts 321 of rotary electric magnetic iron, and this connection terminal 331 is provided with two ears 3311, this two ear 3311 can establish and packing connection terminal 331 for screw tightening 51 locks, makes coupled arm 33 combine with rotary electric magnetic iron 32 firmly; 332 at the drive end of this coupled arm 33 is a long groove shape, this drive end 332 is can be sheathed for a screw tightening 51, and this screw tightening 51 is locked on the active blade 22, make coupled arm 33 and active blade 22 interlocks, the driving of this rotary electric magnetic iron 32 of mat and make active blade 22 extended in tool rest 21 front ends cuts;
This clamp unit 40 is to include a fixture block 41, a pad 42, clamping plate 43 and to sheet 44, this fixture block 41 is that mat screw tightening 51 is established for 23 groups with fixed blade, make fixture block 41 be positioned the front end part of tool rest 21 in view of the above, this fixture block 41 then can be set the position for this switch 25 locks; This fixture block 41 has the cambered surface of leading 411, and this fixture block 41 is to get a nargin space discard through this pad 42 to combine with clamping plate 43 again, dead with anti-pinch, these clamping plate 43 are also curved, the clamping plate 43 of this arc and the opening that cambered surface 411 just can be enclosed a flaring of leading of fixture block 41, the effect of clamping plate 43 and fixture block 41 and tool clamping; This clamping plate 43 are outer to be provided with one and to support sheet 44, should support sheet 44 and see through the adjustment of screw tightening 51 and can provide clamping plate 43 different supporting to compel power, changes the clamping tightness of clamping plate 43 and fixture block 41 according to this;
The user can be according to the different clamping tightness of adjusting fixture block 41, clamping plate 43 of employed line body thickness, and it is can see through the screw tightening of adjusting on sheet 44 51 to reach; And this active blade 22 also can be controlled through the adjustment screw 2132 of packing assembly with the interlock tightness of fixed blade 23.
It is then please cooperate shown in the 5th figure and the 6th figure that the startup of the utility model rotary electric magnetic iron 32 is closed with the interlock of active blade 22, this interlock plate 24 is when being touched, active blade 22 is retracted by the elastic force of elastic component 2131, and among income tool rest 21 chutes 211; When interlock plate 24 is touched and during trigger switch 25, then rotary electric magnetic iron 32 just can rotate a predetermined angle, and with coupled arm 33 drive active blades 22, make outside active blade 22 stretches out in, cooperate with fixed blade 23 the line body is cut off, this active blade 22 is retracted once more in retraction tool rest 21 chutes 211 by the elastic force of elastic component 2131 then can after rotary electric magnetic iron 32 stops.
When the utility model uses in reality, see also shown in the 7th figure to the ten figure, wherein the 7th figure and the 8th figure are that active blade 22 does not stretch out as yet, and meaning is the different angles signal before the line body is not cut off, the 9th figure and the tenth figure then are that active blade 22 stretches out, the different angles signal after the line body is cut off;
When the opening that is surrounded by the fixture block 41 of clamp unit 40 and intermediate plate when the line body stretches into, just can touch interlock plate 24, and then trigger this switch 25, the predetermined angle of rotating shaft 321 rotations one of like this then rotary electric magnetic iron 32, and drive active blades 22 with coupled arm 33, and make outside active blade 22 stretches out in, cooperate with fixed blade 23 the line body is cut off, this active blade 22 is retracted in retraction tool rest 21 chutes 211 by the elastic force of elastic component 2131 then can after rotary electric magnetic iron 32 stops; Cut its end of a thread of line body then still is subjected to the clamping of fixture block 41 and clamping plate 43, can not drop;
This active blade 22 or fixed blade 23 all can unload separately during passivation gradually using a period of time, it is ground again or a hyperphoric new product after, just regular event once again.
In sum, the utility model Sewing machines automatic tangent apparatus is on structural design, use practicality and cost benefit, really be that to meet on the industry development fully required, and disclosed structure creation also is to have unprecedented innovation structure, so it has " novelty " and should not have doubt, the utility model can have more the enhancement effect than conventional construction again, therefore also have " progressive ", it meets the regulation of the application important document of the relevant novel patent of China's Patent Law fully, be to mention patent application in accordance with the law, and would like to ask Patent Office and examine early, and affirm.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art, in the scope that does not break away from technical solutions of the utility model, when the structure that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (9)
1. a Sewing machines automatic tangent apparatus is characterized in that this automatic tangent apparatus comprises that mainly a base plate, cuts a unit and a gear unit, wherein:
This cuts the unit and includes a tool rest, an active blade, a fixed blade, an interlock plate and a switch, this tool rest is fixedly arranged on the base plate, being provided with a chute in the tool rest can be for this active blade along the chute displacement or stretch out, the end face that this tool rest supplies active blade to stretch out on chute is a front end, the tool rest other end then is the rear end, this fixed blade, interlock plate and switch then are arranged at the tool rest front end, and this switch can be triggered by interlock plate;
This gear unit includes a pedestal, a rotary electric magnetic iron and a coupled arm, and this pedestal is fixedly arranged on the rear end of tool rest; This rotary electric magnetic iron has a rotating shaft, and rotary electric magnetic iron is mounted on this pedestal, and this rotary electric magnetic iron also can be subjected to the control of switch to do the rotation of predetermined angular; This coupled arm has a connection terminal and rotary electric magnetic iron rotating shaft interlock, and one drives end and active blade pivot group;
In view of the above, but by touching interlock plate and trigger switch, make rotary electric magnetic iron rotate seeing through coupled arm again active blade stretched out by tool rest, to reach the effect that cuts.
2. Sewing machines automatic tangent apparatus according to claim 1 is characterized in that wherein said tool rest is provided with a control panel, and this control panel is provided with an elastic component, and this elastic component one end also is connected with active blade, after cutting active blade is retracted according to this.
3. Sewing machines automatic tangent apparatus according to claim 2 is characterized in that the contiguous tool rest front end of wherein said control panel part is provided with a packing assembly and compels active blade to support, and adjusts the snap-in force of active blade and fixed blade according to this.
4. Sewing machines automatic tangent apparatus according to claim 3 is characterized in that wherein said packing assembly comprises that one adjusts screw, an elastomer and a steel ball.
5. Sewing machines automatic tangent apparatus according to claim 1, it is characterized in that wherein said tool rest front end is provided with a clamp unit, this clamp unit comprises that one has the fixture block of the cambered surface led, and one and fixture block lead the corresponding curved splint of cambered surface, and these clamping plate and fixture block are enclosed the opening of a flaring, and the effect of tool clamping.
6. Sewing machines automatic tangent apparatus according to claim 5 is characterized in that being provided with a pad between wherein said clamp unit fixture block and clamping plate.
7. Sewing machines automatic tangent apparatus according to claim 5, it is characterized in that wherein said clamping plate are locked on the fixture block with a screw tightening, on these clamping plate and be provided with one and support sheet, should support sheet and can cooperate screw tightening to reach the effect of adjusting clamping plate and fixture block clamping elasticity.
8. Sewing machines automatic tangent apparatus according to claim 1 is characterized in that connection terminal tool two ears of wherein said coupled arm, and this two ear can cooperate a screw tightening packing coupled arm and rotating shaft interlock.
9. Sewing machines automatic tangent apparatus according to claim 1 is characterized in that it is to be an elongated slot that wherein said coupled arm drives end, and this elongated slot can see through a screw tightening and active blade interlock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201411054U CN201043233Y (en) | 2007-03-21 | 2007-03-21 | Automatic thread cutting device of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201411054U CN201043233Y (en) | 2007-03-21 | 2007-03-21 | Automatic thread cutting device of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201043233Y true CN201043233Y (en) | 2008-04-02 |
Family
ID=39258126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201411054U Expired - Fee Related CN201043233Y (en) | 2007-03-21 | 2007-03-21 | Automatic thread cutting device of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201043233Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535043A (en) * | 2010-12-13 | 2012-07-04 | 顾飞龙 | Adjustment structure of thread cutting device for sewing machine |
-
2007
- 2007-03-21 CN CNU2007201411054U patent/CN201043233Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535043A (en) * | 2010-12-13 | 2012-07-04 | 顾飞龙 | Adjustment structure of thread cutting device for sewing machine |
| CN102535043B (en) * | 2010-12-13 | 2015-04-15 | 顾飞龙 | Adjustment structure of thread cutting device for sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080402 Termination date: 20110321 |