CN1670287A - Thread tension adjusting device for sewing machine - Google Patents
Thread tension adjusting device for sewing machine Download PDFInfo
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- CN1670287A CN1670287A CN 200510059226 CN200510059226A CN1670287A CN 1670287 A CN1670287 A CN 1670287A CN 200510059226 CN200510059226 CN 200510059226 CN 200510059226 A CN200510059226 A CN 200510059226A CN 1670287 A CN1670287 A CN 1670287A
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- 238000009958 sewing Methods 0.000 title claims abstract description 44
- 230000001105 regulatory effect Effects 0.000 claims abstract description 44
- 230000005540 biological transmission Effects 0.000 claims description 30
- 230000008859 change Effects 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 description 12
- 238000007906 compression Methods 0.000 description 12
- 238000012856 packing Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 5
- 230000004044 response Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
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Abstract
A thread tension regulator for sewing machine applies the tension force to the thread, from a thread supply of the sewing machine arm composed of a front frame and a rear frame to a middle portion of the thread supplying route on a needle via a take-up lever. The thread tension regulator includes: a thread tension regulating shaft supported to a front frame of an arm; a pushing object side thread tension disk supported to the thread tension regulating shaft; a pushing side thread tension disk pushing the pushing side thread tension disk from the side of the arm; a driving actuator changing the intensity of the tensile force to be applied to the needle thread by the pushing object side thread tension disk and the pushing side thread tension disk; and a pushing force transmitting member transmitting the driving force of the driver actuator to the pushing side thread tension disk. The pushing force transmitting member is provided with a driving rod constituting a tip part and an intermediate rod having a diameter larger than that of the driving rod and constituting the rear end side.
Description
Technical field
The present invention relates to use drive ram, change the formed line tension regulator of giving the Sewing machines of the tension force size of reaching the standard grade of 1 pair of clamp on the anterior framework that is provided in sewing machine arm.
Background technology
In the past, in the various Sewing machiness of flat seam machine and cycle Sewing machines etc., gave the tension force of reaching the standard grade size, be provided with various line tension regulators in order to regulate.Recently, but occurred variously regulating this thread tension and being to use the motion of the automated sewing wire tension adjustment unit that solenoid actuator automaticity regulates without hand, and practicability.
Such as, in Japan's patent in clear and No. 6314 communiques of 56 years special permission bulletins (JP-B-56-6314), putting down in writing a kind of control device of thread take-up tension lever of Sewing machines of following structure: on the anterior framework of sewing machine arm, setting has the tension disk of 1 pair of clamp, inboard at sewing machine arm, setting has the magnet of armature, and the leading section of this armature pushes (for example, with reference to patent documentation 1) laterally with the clamp of the pushing side of tension disk from the sewing machine arm inboard.
In the control device of the thread take-up tension lever of the Sewing machines of this structure, because of the inside at sewing machine arm is provided with magnet, the problem of existence is when this magnet fault, and the operator need insert in the framework of arm with hand and carry out the magnet transposing, the complicated and trouble of transposing operation.
, oversimplify for this reason, the various motions of the such Sewing machines in the framework outside also occurred the solenoid actuator is equipped on for the maintenance and the transposing operation that make thread tension regulate the solenoid actuator of usefulness.
Such as, disclose in No. 210279 communiques (JP-A-2002-210279) in the special permission in 2002 of Japan's patent, as Fig. 4 of accompanying drawing～shown in Figure 8, putting down in writing a kind of line tension regulator of Sewing machines of following structure: on the anterior framework of sewing machine arm, the thread tension regulating shaft that is provided with 1 pair of clamp of supporting keeps the thread tension adjustment seat of usefulness, front side in this thread tension adjustment seat, be provided with o cylindraceous integrated, when driving this o, this plunger moves towards the clamp direction, produces tension force by 1 pair of clamp.
But in this occasion and since o cylindraceous be from the anterior framework of sewing machine arm forwards (user operates a side) stretch out very long structure, so the problem that exists not only when the operation that hangs up line but also when making operation, also hindered etc.
For this reason, in above-mentioned (JP-A-2002-210279), as Figure 16 of accompanying drawing～shown in Figure 17, putting down in writing a kind of line tension regulator of Sewing machines of following structure: o is separated, be equipped on the outside of the rear portion framework of sewing machine arm, make the slotting loose ends pin that leads in the thread tension regulating shaft of 1 pair of clamp of supporting rearward extend longly, near the framework of rear portion, the movable axis of o and the rearward end of loose ends pin are linked, thus, use a certain o that drives of multiple driving voltage, thereby make the force variation of compression helical spring, the variable tension force that rolls off the production line of giving.
When adopting Figure 16 of above-mentioned JP-A-2002-210279, mobile line tension regulator shown in Figure 17, the o that thread tension is regulated usefulness has been configured to the shape of stretching out to the outside of the rear portion of sewing machine arm framework.Transposing operation when thus, being convenient to the maintenance of this o and fault.But, because it is last that the elongated loose ends pin of slotting straight joint line tension regulating shaft is set at the distance of the whole length from anterior framework to the rear portion framework, therefore, in the occasion that the driving by o makes elastic force that movable axis stretches out, overcomes compression helical spring push the rearward end of loose ends pin, deflection takes place at its middle part, way in loose ends pin easily.
Like this, because of deflection takes place at loose ends pin middle part in transit, the problem of existence is that the response of loose ends pin leading section is worsened, and can not control acting on the 1 pair of tension force between clamp knifeedge, and the precision that thread tension is regulated reduces.For this reason, the method for considering to make the chap of loose ends pin is also arranged.Yet,, can cause that the thread tension regulating shaft of the loose ends pin of inserting axis footpath chap also maximizes, line tension regulator itself maximizes and the problem of cost up if like this.
Summary of the invention
The object of the invention is, thereby provides pushing force transmission member middle part in transit that deflection can not take place, pushing force correctly can be delivered to the line tension regulator that pushing side clamp can improve the Sewing machines of the response of adjustment of tonicity and precision.
The line tension regulator of Sewing machines of the present invention, arrive the middle part, way of the feed path of reaching the standard grade of suture needle via thread take-up tension lever at line supply source from the sewing machine arm that constitutes by anterior framework and rear portion framework, give tension force to reaching the standard grade, it is characterized in that, comprising: be provided in the thread tension regulating shaft on the anterior framework in the described sewing machine arm; What be supported in described thread tension regulating shaft is urged side clamp and this is urged the pushing side clamp that the side clamp pushes from the sewing machine arm side direction; Change the drive ram of giving the tension force size usefulness of reaching the standard grade by the described side that is urged with pushing side clamp; And have to insert to lead to and link in the fore-end of described thread tension regulating shaft inside with described drive ram and the rear end side part thicker, the driving force of described drive ram passed to the pushing force transmission member of described pushing side clamp than front part.
Adopt this structure, when passing through the pushing transmission member by the driving force that driving produced of drive ram when pushing side clamp transmits, because of rear end side part thicker than the front part, so deflection can not take place in the middle part, way at the pushing force transmission member, can will change corresponding pushing force with the driving force of drive ram and correctly be delivered to pushing side clamp, can improve the response and the precision of adjustment of tonicity.
The simple declaration of accompanying drawing
Fig. 1 is the stereogram of seeing from the flat seam machine left front in the embodiments of the invention.
Fig. 2 be flat seam machine arm want portion's vertical section side view.
Fig. 3 is the exploded perspective view of thread tension governor motion.
Arm when Fig. 4 regulates solenoid-activated for thread tension want portion's vertical section side view.
Fig. 5 is the suitable figure with Fig. 3 of variation.
The specific embodiment
As shown in Figure 1, flat seam machine 1 is positioned on the operation post T.On the base plate 2 of flat seam machine 1, needle plate 5 is set.In the rearward end of this base plate 2, stand upward and establish column sections 3.In the upper end of this column sections 3, the arm (suitable with sewing machine arm) 4 that forwards extends is set with base plate 2 opposed shape ground.In this occasion, arm 4 constitutes (with reference to Fig. 2) by anterior framework 4a and rear portion framework 4b.
On arm 4, be provided with: the driving force by transmitting sewing machine electromotor (not shown) via main shaft, the needle bar drive device that the shank 6 with suture needle 7 is driven up and down; The thread take-up tension lever driving mechanism that 9 thread take-up tension levers that upwards draw 8 of will reaching the standard grade are driven up and down; And line tension regulator 10 described later.At this, because of needle bar drive device and thread take-up tension lever driving mechanism are technique known, its detailed explanation of Therefore, omited.
The following describes the position be in never illustrated line supply source arrive via thread take-up tension lever 8 suture needles 7 the feed path of reaching the standard grade the middle part, way and be set at line tension regulator 10 on the arm 4.
As shown in Figure 1 and Figure 2, line tension regulator 10 has: be located at the thread tension governor motion 11 on the anterior framework 4a of arm 4; The thread tension of being located on the rear portion framework 4b of arm 4 is regulated solenoid 12; And the pushing force transmission member 13 etc. that the driving force that this thread tension is regulated solenoid 12 is passed to the pushing side clamp 22 in 1 pair of clamp 22,23.
Thread tension governor motion 11 at first is described.As shown in Figure 2, supporting frame 4c is laterally integrally formed with anterior framework 4a and rear portion framework 4b.Inside at this supporting frame 4c, on the position of first half roughly, be formed with and make intermediate bar described later (suitable) along the fore-and-aft direction 4d of path hole portion slidably with the 2nd transmission member, on the position of latter half roughly, be formed with diameter greater than this path hole 4d of portion and by the 4e of tilt stage portion and the path hole 4d of portion continuous the 4f of big footpath hole portion.
As Fig. 2, shown in Figure 3, forwardly be formed with fixing hole 4g cylindraceous on the framework 4a towards the place ahead, in this fixing hole 4g, by fixing Screw 17 affixed thread tension adjustment seat 16 cylindraceous.In the inside of this thread tension adjustment seat 16, be formed with dead eye 16a cylindraceous in the wings on the position of side, simultaneously forwardly on the position of side, be formed with the spring accepting hole 16b continuous with this dead eye 16a.
As shown in Figure 3, thread tension regulating shaft 18 be with the path axial region 18a of rear side, with this path axial region 18a continuous big footpath axial region 18b, with should big footpath axial region 18b continuous thread take-up spring thread guard axial region 18c, with this thread take-up spring thread guard axial region 18c continuous and to form axial region 18d at the screw thread that outer peripheral face forms male screw thread integrally formed.Thread take-up spring thread guard axial region 18c and screw thread form axial region 18d, form the grooving 18e that its central portion has Rack in the axial direction, are divided into 2 parts diametrically.And, on path axial region 18a and big footpath axial region 18b, be formed with the inserting hole 18f that inserts logical drive rod described later (suitable) usefulness with the 1st transmission member.
Thread tension regulating shaft 18 is inserted its path axial region 18a and is led in the dead eye 16a of thread tension adjustment seat 16 (with reference to Fig. 4), is fixed on the thread tension adjustment seat 16 by fixing Screw 19.The yarn take-up spring 20 that is made of helical spring has line hook portion 20a, and holding section 18a is fastened among the slot 18g of big footpath axial region 18b, be housed in simultaneously than big footpath axial region 18b more the outside spring accepting hole 16b in.On the thread take-up spring thread guard axial region 18c of thread tension regulating shaft 18, embedding has the discoideus clamp pushing member 21 that forms 1 couple of 21a of half-lune holes portion, to push side clamp 22 by axis hole 22a, 23a simultaneously and be urged 23 embeddings of side clamp, hold-down nut 24 screws togather with screw thread formation axial region 18d the most at last.Thus, with 1 pair pushing side clamp 22 be urged side clamp 23 and be positioned between the thread take-up spring thread guard axial region 18c.These push sides and are urged side clamp 22,23, can turn round with respect to thread tension regulating shaft 18 respectively by this axis hole 22a, 23a.
Have 25 slotting the leading in the inserting hole 18f of path axial region 18a and big footpath axial region 18b of drive rod of specific length, the front end of this drive rod 25 can push the 21b of the pushing portion butt of member 21 central portions with clamp.
Regulate solenoid 12 below with reference to the thread tension that Fig. 2 explanation is located on the framework 4b of rear portion.Thread tension is regulated solenoid 12 (suitable with drive ram, solenoid actuator) and is made of the general proportional solenoid that makes thrust line deformationization according to current value.When never illustrated control device is supplied with driving voltage, thread tension is regulated 12 couples of output shaft 12a of solenoid and is driven, it is forwards passed in and out with predetermined distance, output shaft 12a is changed to the pushing force of pushing side clamp 22 according to driving voltage (drive current).
Regulate the front inside partly of the output shaft 12a of solenoid 12 at thread tension, form bolt hole 12b with female screw thread.Link by stroke adjustment bolt 27 (suitable with screw member) is screwed togather with this bolt hole 12b, hold-down nut 29 screws togather by packing ring 28 and stroke adjustment bolt 27.By hold-down nut 29 is revolved, stroke adjustment bolt 27 is fixed on the output shaft 12a.That is, stroke adjustment bolt 27 is fixed on this output shaft 12a, can the protrusion amount L from output shaft 12a be regulated.And,, the gasket material 30 of ring-type is installed in the rearward end of the 4f of big footpath hole portion corresponding with the front end of thread tension adjusting solenoid 12.
Among the figure, be equipped with intermediate bar 31, this intermediate bar 31 is across big footpath 4f of hole portion and the path hole 4d of portion between stroke adjustment bolt 27 and the drive rod 25, has the roughly the same diameter of axle of the diameter of axle with the path hole 4d of portion, and has specific length.On this intermediate bar 31, embed the packing ring 32,33 that 1 pair of roughly identical with the diameter of axle of the 4f of the big footpath hole portion front and back of diameter are arranged, simultaneously on the intermediate bar 31 between this packing ring 32,33 setting-in compression helical spring 34 (with reset suitable with spring).The back-end location of the packing ring 33 of rear side is by locating with the affixed E shape ring 35 of intermediate bar 31.
Thus, utilize the elastic force (power of energizing) of compression helical spring 34, the packing ring 32 of front side is all the time from rear and the 4e of tilt stage portion butt, the head 27a butt of the rear end of intermediate bar 31 and stroke adjustment bolt 27, intermediate bar 31 and output shaft 12a integrated ground rearward move, until packing ring 28 and gasket material 30 butts, stop at (with reference to Fig. 2) on the non-activated position.At this moment, only be the front end of intermediate bar 31 and the rear end butt of drive rod 25, the position no change of 25 pairs of thread tension regulating shafts 18 of drive rod.In addition, constituted pushing force transmission member 13 by these drive rods 25 and intermediate bar 31 etc.
Among the figure, the rear side of regulating solenoid 12 and rear portion framework 4b because of thread tension is affixed, so thread tension is regulated solenoid 12 than the part that rear portion framework 4b more protrudes to rear side, is synthesized resinous protective cover 38 and covers.At the central portion of these protective cover 38 rear end faces, be formed with and be used to confirm that thread tension regulates the incision hole 38a of circle of the output shaft 12a actuator state of solenoid 12.
The following describes the action of the line tension regulator 10 of structure like this.When thread tension adjusting solenoid 12 does not drive, as previously mentioned, utilize the elastic force of compression helical spring 34, make intermediate bar 31 and output shaft 12a be in non-operating position shown in Figure 2 together.At this moment, because of the butt of the front end of the rear end of drive rod 25 and intermediate bar 31 is disengaged, so drive rod 25 becomes free state.Its result is urged side clamp 23 and is not subjected to any pushing force from pushing side clamp 22, and this two clamp 22,23 is in free state, so 9 do not give tension force to reaching the standard grade of 22,23 of two clamps.That is, tension force is zero.
On the other hand, when regulating solenoid 12 supply driving voltages to thread tension, as shown in Figure 4, because output shaft 12a overcomes the elastic force of compression helical spring 34 to the place ahead of predetermined stroke part turnover, so being output an intermediate bar 31 of 12a pushing also forwards moves simultaneously, with the rear end butt of drive rod 25, this drive rod 25 is forwards pushed.Its result, the 21b of pushing portion to clamp pushing member 21 pushes because of the front end of drive rod 25, so push the pushing side clamp 22 that member 21 has been subjected to pushing force by this clamp, pushes being urged side clamp 23.Thus, 9 give tension force by two clamps 22,23 reaching the standard grade in the middle of it.
At this moment, along with regulating increasing of driving voltage that solenoid 12 supplies with to thread tension, the pushing force of drive rod 25 is increased, so two clamps 22,23 are given 9 the tension force increase of reaching the standard grade.At this, when with when the big or small corresponding tension force size of the driving voltage of thread tension adjusting solenoid 12 supplies is inconsistent with predetermined set value, can unclamp hold-down nut 29, rotational travel adjusting bolt 27 is regulated its protrusion amount L.Thus, the path increment that the length variation that can make the length variation, thread tension of the range deviation, drive rod 25 and the intermediate bar 31 that comprise from anterior framework 4a to rear portion framework 4b regulate the output shaft 12a of solenoid 12 is regulated solenoid 12 at interior thread tension keeps certain, can improve the precision of pushing side clamp 22 pushing forces.
As mentioned above, line tension regulator 10 comprises: be provided in the thread tension regulating shaft 18 on the anterior framework 4a in the arm 4; Be supported in thread tension regulating shaft 18 be urged side clamp 23 and this is urged the pushing side clamp 22 that side clamp 23 pushes from arm 4 side direction; By the pushing side be urged side clamp 22,23 and change the thread tension of giving 9 the tension force size usefulness of reaching the standard grade and regulate solenoid 12; And the pushing force transmission member 13 that the driving force of this thread tension adjusting solenoid 12 is passed to pushing side clamp 22.Thus, when the formed driving force of driving of thread tension adjusting solenoid 12 is delivered to pushing side clamp 22 by pushing force transmission member 13, because the intermediate bar 31 that constitutes the rear end side part is than the drive rod 25 thick (big footpath) that constitutes the front part, so deflection can not take place in the middle part, way at pushing force transmission member 13, the driving force of regulating solenoid 12 with thread tension changes corresponding pushing force and can correctly be delivered to pushing side clamp 22, can improve the response and the precision of adjustment of tonicity.
Again, pushing force transmission member 13 have the drive rod 25 that constitutes the front part and diameter greater than this drive rod 25, constitute the intermediate bar 31 of rear end side part, compare with the occasion that pushing force transmission member 13 that thickness is different makes 1 member, can be low-cost and easily make.
Again, thread tension is regulated on the rear portion framework 4b of anterior framework 4a reverse side that solenoid 12 was set at and was equipped with thread tension regulating shaft 18, supporting frame 4c is laterally integrally formed with rear portion framework 4b and anterior framework 4a, take in the inside of this supporting frame 4c and to support intermediate bar 31, when the thread tension that is equipped on rear portion framework 4b is regulated solenoid 12 faults, because of be located at thread tension regulate solenoid 12 stroke adjustment bolt 27 head 27a only with intermediate bar 31 butts, so can make transposing operation simplification.
And, not only take in the intermediate bar 31 that is supporting pushing force transmission member 13 in the inside of this supporting frame 4c, and by this supporting frame 4c, can prevent reliably that the oil supplied with to each position from fuel tank and dust etc. are attached to intermediate bar 31, can prevent the reduction that the driving force of intermediate bar 31 is transmitted.
Again, be provided with compression helical spring 34, output shaft 12a from solenoid 12 to thread tension and intermediate bar 31 that this compression helical spring 34 is regulated are given the elastic force that side is loosened in the thread tension adjusting, when the driving of thread tension adjusting solenoid 12 stops, utilize the elastic force of compression helical spring 34 these output shafts 12a and intermediate bar 31 can be returned to move to original thread tension and regulate release position, regulate the restoring type that solenoid 12 does not need to use high price as thread tension, can realize the miniaturization and the cost degradation of thread tension adjusting solenoid 12.
Again, the rear end butt of the front end of intermediate bar 31 and drive rod 25, when thread tension is regulated solenoid 12 non-drivings, utilize the elastic force of compression helical spring 34 butt can be removed, when the driving of thread tension adjusting solenoid 12 stops, drive rod 25 does not return mobile, utilize compression helical spring 34, only output shaft 12a and intermediate bar 31 are returned and move to original thread tension and regulate release position, compare with the occasion that drive rod 25 is returned, compression helical spring 34 can use the weak and low kind of cost of elastic force.
In addition, even make the occasion of the axle center mutual dislocation of two bars 25,31 because of the making error of this two bar 25,31 and alignment error etc., drive rod 25 is in the butt relation with intermediate bar 31, intermediate bar 31 1 sides are thicker than drive rod 25 simultaneously, eliminated so can reliably its dislocation be absorbed, can be guaranteed that the transmission performance of driving force can not reduce.
Again, between the front end of drive rod 25 and pushing side clamp 22, be equipped with clamp pushing member 21, even clamp pushing member 21 is driven bar 25 wearing and tearing, also can eliminate the wearing and tearing of 25 pairs of pushings of drive rod side clamp 22, so need not change the pushing side clamp 22 of high price, get final product and only need change the low clamp pushing member 21 of cost, can reduce the maintenance expense.And, can make the thickness part of the contraction in length clamp pushing member 21 of drive rod 25, can further improve the rigidity of 25 pairs of deflections of drive rod.
Again, thread tension is regulated the output shaft 12a of solenoid 12, have by screwing togather the stroke adjustment bolt 27 of the axis direction length that can regulate this output shaft 12a, regulate the amount of screwing togather of bolt 27 by regulating the trip, the stroke that can make thread tension regulate the output shaft 12a of solenoid 12 keeps certain, can improve the precision of line tension.
Again; be provided with thread tension is regulated the protective cover 38 that part that the ratio rear portion framework 4b of solenoid 12 protrudes is more laterally protected; on this protective cover 38; be formed with the affirmation thread tension and regulate the incision hole 38a that the actuator state of solenoid 12 is used; by this incision hole; by thread tension is regulated the actuator state visual confirmation of solenoid 12 or the thoughts and feelings of finger, can discern it reliably.
(change form)
The following describes the change form of above-mentioned example.
1] member that also can stroke adjustment bolt 27 and intermediate bar 31 is integrally formed, the output shaft 12a that regulates solenoid 12 with thread tension links.
2] also can use intermediate bar 31 and drive rod 25 integrally formed integral member are constituted pushing force transmission member 13.
3] also can omit stroke adjustment bolt 27, make and make thread tension regulate the structure that to finely tune at fore-and-aft direction with respect to the installation site of rear portion framework 4b of solenoid 12.
4] as shown in Figure 5, clamp pushing member 21 can be set also, the shape that pushes side clamp 22 is made the special public clear 56-6314 number such shape of Japan Patent, drive rod 25 directly pushes pushing side clamp 22.
5] the present invention is not limited to the example of above explanation, so long as the row dealer without departing from the spirit and scope of the present invention, can add various changes and implement in the foregoing description form, the present invention also comprises these change forms.
6] certain, the present invention applicable to arrive via thread take-up tension lever at line supply source from sewing machine arm suture needle on thread path the middle part, way, give the line tension regulator of the such various Sewing machiness of tension force to reaching the standard grade.
Claims (10)
1. the line tension regulator of a Sewing machines arrives the middle part, way of the feed path of reaching the standard grade of suture needle at the line supply source from the sewing machine arm that is made of anterior framework and rear portion framework via thread take-up tension lever, give tension force to reaching the standard grade, and it is characterized in that, comprising:
Be provided in the thread tension regulating shaft on the anterior framework in the described sewing machine arm;
What be supported in described thread tension regulating shaft is urged side clamp and this is urged the pushing side clamp that the side clamp pushes from the sewing machine arm side direction;
Change the drive ram of giving the tension force size usefulness of reaching the standard grade by the described side that is urged with pushing side clamp; And
Have to insert to lead to and link in the fore-end of described thread tension regulating shaft inside with described drive ram and the rear end side part thicker, the driving force of described drive ram passed to the pushing force transmission member of described pushing side clamp than front part.
2. the line tension regulator of Sewing machines as claimed in claim 1, it is characterized in that, described pushing force transmission member has the 1st transmission member that constitutes described front part and constitutes described rear end side the 2nd transmission member partly, and described the 2nd transmission member is thicker than described the 1st transmission member.
3. the line tension regulator of Sewing machines as claimed in claim 2 is characterized in that, described drive ram is set at and is equipped with on the rear portion framework of anterior framework reverse side of described thread tension regulating shaft,
Supporting frame is laterally integrally formed with described rear portion framework and described anterior framework, described the 2nd transmission member at the internal support of this supporting frame.
4. the line tension regulator of Sewing machines as claimed in claim 2, it is characterized in that, described drive ram is made of the solenoid actuator, being provided with resets uses spring, and this spring is given the elastic force that side is loosened in the thread tension adjusting to the output shaft and the 2nd transmission member of described solenoid actuator.
5. the line tension regulator of Sewing machines as claimed in claim 3, it is characterized in that, described drive ram is made of the solenoid actuator, being provided with resets uses spring, and this spring is given the elastic force that side is loosened in the thread tension adjusting to the output shaft and the 2nd transmission member of described solenoid actuator.
6. the line tension regulator of Sewing machines as claimed in claim 4, it is characterized in that, the rear end butt of the front end of the 2nd transmission member and described the 1st transmission member when the non-driving of described drive ram, utilizes used resetting described butt can be removed with the elastic force of spring.
7. the line tension regulator of Sewing machines as claimed in claim 5, it is characterized in that, the rear end butt of the front end of the 2nd transmission member and described the 1st transmission member when the non-driving of described drive ram, utilizes used resetting described butt can be removed with the elastic force of spring.
8. as the line tension regulator of each described Sewing machines in the claim 2 to 7, it is characterized in that, between the front end and described pushing side clamp of described the 1st transmission member, be equipped with clamp pushing member.
9. as the line tension regulator of each described Sewing machines in the claim 4 to 7, it is characterized in that the output shaft of described solenoid actuator has by screwing togather the screw member of the axis direction length that can regulate this output shaft.
10. the line tension regulator of Sewing machines as claimed in claim 3; it is characterized in that; be provided with the protective cover that the part in the outside of the described rear portion of being projected into of described drive ram framework is protected; on this protective cover, be formed with the incision hole that the actuator state of confirming drive ram is used.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004077902A JP4492162B2 (en) | 2004-03-18 | 2004-03-18 | Sewing thread tension device |
| JP2004-077902 | 2004-03-18 | ||
| JP2004077902 | 2004-03-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1670287A true CN1670287A (en) | 2005-09-21 |
| CN1670287B CN1670287B (en) | 2010-04-28 |
Family
ID=35041712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510059226 Expired - Lifetime CN1670287B (en) | 2004-03-18 | 2005-03-18 | Thread tension adjusting device for sewing machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4492162B2 (en) |
| CN (1) | CN1670287B (en) |
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| CN101205664B (en) * | 2006-12-15 | 2011-10-05 | 兄弟工业株式会社 | Thread clamping device for sewing machine |
| CN101122071B (en) * | 2006-08-08 | 2011-12-07 | 兄弟工业株式会社 | Thread adjusting device for sewing machine |
| CN101205667B (en) * | 2006-12-15 | 2012-05-30 | 兄弟工业株式会社 | Sewing machine |
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| WO2024131623A1 (en) * | 2022-12-19 | 2024-06-27 | 上海富山精密机械科技有限公司 | Thread tension self-balancing device, and thread tension self-balancing method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007202833A (en) * | 2006-02-02 | 2007-08-16 | Juki Corp | Sewing thread tension device |
| KR100940146B1 (en) | 2006-12-15 | 2010-02-03 | 브라더 고오교오 가부시키가이샤 | Sewing machine |
| JP2013099423A (en) * | 2011-11-08 | 2013-05-23 | Brother Ind Ltd | Sewing machine |
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| DE1066080B (en) * | 1956-05-24 | 1959-09-24 | The Singer Manufacturing Company, Elizabeth, N. J. (V. St. A.) | Thread take-up spring device for sewing machines |
| JPS4510374Y1 (en) * | 1966-04-14 | 1970-05-13 | ||
| JPS5071147U (en) * | 1974-07-22 | 1975-06-23 | ||
| JPS5331449A (en) * | 1976-09-01 | 1978-03-24 | Tokyo Juki Industrial Co Ltd | Balance controller for sewing machine |
| JPH02224786A (en) * | 1988-12-23 | 1990-09-06 | Kochs Adler Ag | Material-tensioning device for sewing-machine |
| DE4401652A1 (en) * | 1994-01-21 | 1995-07-27 | Maier & Soehne Unitas | Sewing machine for blind stitching with simple, low cost modification |
| JP4046431B2 (en) * | 1999-01-18 | 2008-02-13 | Ｊｕｋｉ株式会社 | Sewing thread tension device |
| CN1101491C (en) * | 1999-06-28 | 2003-02-12 | 重机株式会社 | Thread tension control device for sewing machine |
| JP2002210279A (en) * | 2001-01-19 | 2002-07-30 | Brother Ind Ltd | Sewing machine thread tension device |
-
2004
- 2004-03-18 JP JP2004077902A patent/JP4492162B2/en not_active Expired - Fee Related
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2005
- 2005-03-18 CN CN 200510059226 patent/CN1670287B/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101122071B (en) * | 2006-08-08 | 2011-12-07 | 兄弟工业株式会社 | Thread adjusting device for sewing machine |
| CN101205664B (en) * | 2006-12-15 | 2011-10-05 | 兄弟工业株式会社 | Thread clamping device for sewing machine |
| CN101205667B (en) * | 2006-12-15 | 2012-05-30 | 兄弟工业株式会社 | Sewing machine |
| CN101805962B (en) * | 2009-02-16 | 2013-05-29 | Juki株式会社 | Thread adjusting device of sewing machine |
| CN104120547A (en) * | 2014-08-06 | 2014-10-29 | 苏州市豪杰机械电子设备有限公司 | Automatic thread feeding system of sewing machine and control method thereof |
| CN106988038A (en) * | 2016-01-20 | 2017-07-28 | 天津宝盈电脑机械有限公司 | One kind automatically adjusts tension force of facial suture device |
| CN107304500A (en) * | 2016-04-21 | 2017-10-31 | Juki株式会社 | The line adjuster device of sewing machine |
| CN113529293A (en) * | 2021-07-07 | 2021-10-22 | 常熟市欣辉纺织制衣有限公司 | Flat seaming machine convenient to adjust tension of suture |
| WO2024131623A1 (en) * | 2022-12-19 | 2024-06-27 | 上海富山精密机械科技有限公司 | Thread tension self-balancing device, and thread tension self-balancing method and application thereof |
| CN117988011A (en) * | 2024-02-27 | 2024-05-07 | 上海富山精密机械科技有限公司 | Wire tension adjustment device |
| CN117988011B (en) * | 2024-02-27 | 2026-01-06 | 上海富山精密机械科技有限公司 | Line tension adjustment device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4492162B2 (en) | 2010-06-30 |
| JP2005261629A (en) | 2005-09-29 |
| CN1670287B (en) | 2010-04-28 |
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Granted publication date: 20100428 |