CN108070961B - Top thread cutting assembly, double-needle sewing machine and piping bag sewing system - Google Patents

Top thread cutting assembly, double-needle sewing machine and piping bag sewing system Download PDF

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Publication number
CN108070961B
CN108070961B CN201711116585.3A CN201711116585A CN108070961B CN 108070961 B CN108070961 B CN 108070961B CN 201711116585 A CN201711116585 A CN 201711116585A CN 108070961 B CN108070961 B CN 108070961B
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China
Prior art keywords
cutting
sewing machine
interval
upper thread
cutting assembly
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CN108070961A (en
Inventor
加布里埃拉·施尔德曼
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Dukepu Aihua Co ltd
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Durkep Adler Co ltd
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    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B65/00Devices for severing the needle or lower thread
    • D05B65/02Devices for severing the needle or lower thread controlled by the sewing mechanisms
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B65/00Devices for severing the needle or lower thread
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B3/00Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
    • D05B3/10Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for making piped openings
    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B37/00Devices incorporated in sewing machines for slitting, grooving, or cutting
    • D05B37/04Cutting devices

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

An upper thread cutting assembly, a two-needle sewing machine, and a piping bag sewing system are disclosed. An upper thread cutting assembly (9) for a two-needle sewing machine has a cutting device (10) for cutting at least two upper threads which are assigned in each case to a stitch forming part of one of the two needles. A counter cutting device (11) for cutting the thread interacts with the cutting device (10). The cutting device (10) has two separate blades (12, 13) for each of the threads. The cutting interval adjustment device (20) is used to preset a nominal interval (A) between the individual blades (12, 13) transverse to the sewing direction (19). The predetermined nominal interval (a) can be selected from at least two cutting interval values. This results in the upper thread cutting assembly being usable in a flexible manner for various sewing tasks of a two-needle sewing machine.

Description

Top thread cutting assembly, double-needle sewing machine and piping bag sewing system
Cross Reference to Related Applications
The content of german patent application No. de 2016222427.1 is incorporated herein by reference.
Technical Field
The present invention relates to a top thread cutting assembly for a two-needle sewing machine, a two-needle sewing machine having a top thread cutting assembly of this type, and a piping pocket sewing system having a two-needle sewing machine of this type.
Background
Piping bag sewing systems and two-needle sewing machines configured in this way are known from documents DE 19926866C 1, DE 4223527C 1, and DE 19845624C 1, as well as the references cited therein. Document JP 07116376 a discloses a loop trimming assembly for a two-needle sewing machine.
Disclosure of Invention
The object of the present invention is to improve an upper thread-cutting assembly of the type mentioned at the outset in such a way that it can be used in a flexible manner for the various sewing tasks of a two-needle sewing machine.
This object is achieved according to the invention by an upper thread cutting assembly for a two-needle sewing machine, having: a cutting device for cutting at least two upper threads which are assigned in each case to a stitch-forming part of one of the two needles; a counter cutting device interacting with the cutting device for cutting the upper thread, wherein the cutting device has two separate blades, which are used in each case for one of the upper threads; a cutting interval adjustment device for presetting a nominal interval between the individual blades transverse to the sewing direction, wherein the preset nominal interval can be selected from at least two cutting interval values.
The cutting device, which can interact with the counter cutting device, serves to cut the needle thread or the top thread of the sewing machine. The counter cutting device can be embodied as a fixed or positionally fixed frame. Due to the cutting interval adjusting device, the upper wire cutting assembly can be suitable for different needle intervals. In which case it is no longer necessary to provide a dedicated wire cutting assembly for each particular needle spacing value. It has been recognized in this context that it is also possible to reliably cut the two upper threads when not a single blade is used for the two upper threads, but one blade is used for each of the two upper threads in each case. In addition to cutting the upper thread, the upper thread cutting assembly is also capable of capturing the upper thread, i.e. in particular capturing and clamping the upper thread, so that in particular a controlled guiding of the upper thread is achieved after the upper thread has been cut.
The presetting of the interval between the minimum and maximum cutting interval values in a stepless manner by means of the cutting interval adjusting device is particularly flexible.
Two separate counter-blades of the counter-cutting device are provided for each upper thread assigned in each case to one of the stitch forming members, which, when also employed in the upper thread cutting assembly, can create a channel between the separate blades in the region of a central plane extending in the sewing direction in a vertically central manner between the two needles, which channel can be used as a space for the movement of other machine parts. The individual counter-blades can also be embodied adjustable with respect to their mutual spacing.
Two component supports, which in each case have one individual blade and one counter-blade, effect the simultaneous adjustment of the individual blades and of the respective counter-blade assigned to the individual blade via an adjustment of the mutual spacing of the component supports.
An embodiment of the cutting interval adjustment device is embodied such that the centering of the individual blade positions is performed with respect to a central plane extending in a vertically centered manner in the sewing direction between the two needles independently of the respective nominal interval being adjusted, which is comfortable and does not require any additional centering of the upper thread cutting assembly after the interval adjustment has been performed. Such a self-centering cutting gap adjustment can be used in particular in the case of an upper thread cutting assembly with two component supports, which in each case have one individual blade and one counter-blade. Centering of the individual blade positions is also alternatively feasible in case of another configuration, for example when the individual blade and the associated counter-blade are assigned to different component supports.
The obliquely extending slotted opening has in each case one adjusting bolt extending through it, which for adjusting the cutting gap can be displaced and mounted in a bolt carrier fixed to the frame, which results in a slight mechanical complexity of the embodiment of the cutting gap adjustment. The slot-shaped opening is embodied so as to extend in an oblique mirror-image manner, which results in the self-centering cutting gap adjustment being able to have a slight complexity with regard to construction.
The bolt carrier has an adjustment opening which guides the displacement of the adjustment bolt in the adjustment displacement direction, which allows a defined adjustment movement. The adjustment opening of the bolt carrier can be embodied as a vertically extending slot.
The bolt carrier is embodied with two bolt bearing parts, wherein the two slotted openings are arranged between the two bolt bearing parts, which results in a stable cutting interval adjustment.
The advantages of the two-needle sewing machine with upper thread cutting assembly according to the invention and of the piping bag sewing system with two-needle sewing machine according to the invention correspond to those already described above with reference to the upper thread cutting assembly according to the invention.
Drawings
Exemplary embodiments of the invention will be described in more detail below with the aid of the accompanying drawings:
fig. 1 shows a side view of a two-needle sewing machine, wherein the sewing direction extends perpendicular to the drawing plane;
fig. 2 shows an end side view of the sewing machine seen from direction II in fig. 1;
fig. 3 shows an upper thread cutting assembly for a two-needle sewing machine for cutting an upper thread guided by the two needles of the two-needle sewing machine according to fig. 1, the upper thread cutting assembly being shown in an initial position;
FIG. 4 shows the upper wire cutting assembly according to FIG. 3, shown in a cutting position;
FIG. 5 shows the inline cutting assembly according to FIGS. 3 and 4, shown without the stationary blade and the clamp, in an initial position with a maximum cutting interval;
FIG. 6 shows the inline cutting assembly according to FIGS. 3 and 4, shown without the stationary blade and the clamp, in an initial position and with a minimum cutting interval; and
fig. 7 shows an exploded view of the components of a cutting interval adjustment device for presetting a nominal interval between individual blades of a cutting device of an upper wire cutting assembly.
Detailed Description
In the figures a two-needle sewing machine is shown, which generally has an upper arm 1, a lower base plate 2 in the form of a housing, and a vertical support connecting the upper and lower base plates. In the arm 1, a needle bar 5 is mounted in a conventional manner so as to be vertically displaceable in a vertical needle bar guide 4, which needle bar can be driven in a reciprocating manner up and down, typically by means of a motor (not shown) via a crank (also not shown) and by an arm shaft (likewise not shown). The shank 5 carries two needles 6, 7 at its lower end. The needle shaft 5 can be embodied such that the spacing between the two needles 6, 7 can be preset in a variable manner. A needle board 8 assigned to the needles 6, 7 is arranged on the upper side of the baseplate 2, and a gripper (likewise not shown) is arranged below said needle board 8. An upper thread cutting assembly 9, which is shown in its entirety in fig. 3, for example, serves to cut the upper thread or needle thread guided in each case by the needles 6, 7.
The two upper threads to be cut by the upper thread cutting assembly 9 are thus in each case assigned to a stitch-forming component (needle/clamp) of one of the two needles 6, 7.
The upper thread cutting assembly 9 for cutting the upper thread has a cutting device 10 and a counter cutting device 11 interacting with the cutting device 10 for cutting the upper thread.
The counter cutting device 11 is embodied fixed to the frame.
The cutting device 10 has two independent blades 12, 13, one for each of the two upper threads to be cut. For cutting the respective upper thread, the counter blades 14, 15 of the counter cutting device 11 are assigned to each of the individual blades 12, 13.
The two individual blades 12, 13 of the cutting device 10 have in each case one thread-catching hook 16 for catching the respective upper thread and transferring it into a defined cutting position. When wire cutting, the respective upper wire is sheared between the leading cutting edge of the respective counter blade 14, 15 and the counter trimming edge of the respective wire-grabbing hook 16 of the individual blade 12, 13. The individual blades 12, 13 of the cutting device 10 are here repositioned between the initial position shown in fig. 3 and the cutting position shown in fig. 4.
This repositioning of the individual blades 12, 13 between the initial position and the cutting position is driven via a drive unit in the form of a gas cylinder 17. This repositioning movement is guided via a guide rod 17a fixed to the frame, in which guide rod 17a guide sleeve 17b, which in each case is part of one individual blade holding element 17c and is fixedly connected to the two individual blades, runs. The lifting pistons 17d of the gas cylinders 17 are connected in each case via a horizontally running guide rod 17e to the respective individual blade holding element 17c so as to be fixed in terms of pushing and pulling forces.
The common component support 18r supports the vertical guide bar 17a for the individual blades 12 of the cutting device 10 on the right in fig. 3 and the assigned counter-blade 14 of the counter-cutting device 11 on the right. Accordingly, the other component support 18l supports a vertical guide bar 17a for the individual blade 13 of the cutting device 10 shown to the left in fig. 3 and the associated counter-blade 15 to the left.
Each of the individual blades 12, 13 is assigned a clamp 19 a. The respective clamps 19a are affixed to the individual blade holding elements 17c which in turn hold this individual blade 12, 13. The respective clamps 19a bear on the assigned individual blade 12, 13 on the side facing away from the assigned counter blade 14, 15 when biased.
When cutting, i.e. when the individual blade 12, 13 is transferred from the initial position to the cutting position, the respective top thread is simultaneously clamped between the assigned individual blade 12, 13 and the clamp 19a, which in turn is assigned to this individual blade 12, 13. This clamping action is maintained as long as the individual blades 12, 13 are still in the cutting position.
The nominal spacing a between the individual blades 12, 13 and the counter-blades 14, 15 is preset via a cutting spacing adjustment device 20, which will be described below, which is transverse to the sewing direction 19 perpendicular to the drawing plane according to fig. 1. Here, the minimum cutting interval value AminAnd the maximum cutting interval value AmaxThe nominal interval a therebetween can be preset in a stepless manner via the cutting spacer 20. FIG. 5 shows a graph having a maximum cutting interval value AmaxThe cutting device 10 of (1). FIG. 6 shows a graph having a minimum cutting interval value AminThe cutting device 10 of (1). A predetermined nominal interval a can thus be selected from a plurality of cutting interval values. With such cutting interval adjustment, the horizontal movement of the individual blade holding elements 17c is guided by the horizontal guide rod 17e via the horizontal guide sleeve provided therein.
The cutting interval adjustment device 20 is implemented such that the interval between the two component supports 18r, 18l can be preset. The cutting interval adjustment device 20 is embodied such that, independently of the respective nominal interval a being adjusted, the centering of the position of the individual blades 12, 13 and of the counter-blades 14, 15 is carried out with respect to a central plane 21 which extends in a vertically centered manner in the sewing direction 19 between the two needles 6, 7. (see FIG. 1).
Details of such cutting interval adjustment will also be described below with reference to fig. 7.
Each of the component supports 18r, 18l has an opening plate 22r, 22l, which in each case has an obliquely running slot-shaped opening 23r, 23 l. An adjusting bolt 24 extends through the two slotted openings 23r, 23l, which adjusting bolt is displaceable for adjusting the cutting interval and is fastened via a fastening nut 25 with a washer 26. A bolt carrier 27 fixed to the frame for the adjusting bolt 24 comprises an adjusting opening 28 which guides the repositioning of the adjusting bolt 24 in a vertical adjusting repositioning direction 29 in fig. 2 and 3. The adjustment opening 28 is embodied as a vertically extending slot in a base mounting plate 30 of the assembly 9. The drive unit 17 is also attached to the base mounting plate 30. The base mounting plate 30 is in turn secured to the frame. In addition to the base mounting plate 30, which represents the first bolt bearing portion, yet another bolt bearing portion 31 forms part of the bolt carrier 27. The further bolt bearing part 31 in turn has a vertically extending slot 32 embodied in alignment with the vertical slot of the adjustment opening 28. The two opening plates 22r, 22l with the associated oblique slot-shaped openings 23r, 23l are arranged between the two bolt-carrying parts 30, 31, as seen in the sewing direction 19. The adjuster bolt 24 is routed through the adjuster opening 28 of the base mounting plate 30, the angled slotted opening 23l of the aperture plate 22l, the angled slotted opening 23r of the aperture plate 22r, and the slot 32 of the further bolt-carrying portion 31.
With the cutting interval adjustment device 20, the interval between the two component supports 18r and 18l, and thus the interval between the blades 12, 13 of the cutting device 10 and the counter-blades 14, 15 of the counter-cutting device 11, is adjusted as follows:
first, the nominal mutual spacing a of the two needles 6, 7 is preset according to the respective sewing task. The fastening nut 25 is then loosened and the adjusting bolt 24 is repositioned in the adjusting repositioning direction 29. This results in a repositioning of the two component supports 18r, 18l relative to each other and a corresponding modification of the nominal spacing a between the blades 12, 13 or 14, 15, respectively, due to the effect of the force exerted on the two opening plates 22r, 22l and the associated component supports 18r, 18l via the inclined slotted openings 23r, 23l by the adjusting bolts 24. This repositioning of the adjusting bolt 24 in the adjusting repositioning direction 29 is performed until the desired nominal spacing a is reached. The tightening nut 25 is then tightened again. The inclined slot-shaped openings 23r, 23l ensure that the nominal spacing a is preset in a stepless manner.
Two-needle sewing machines are an integral part of piping bag sewing systems.
The needle plate 8 is aligned with a support plate 33 for the article to be sewn. The article to be sewn is, for example, a first article to be sewn, which is, for example, a front panel of a jacket, and is placed on the support plate 33. A second article to be sewn, such as a mother tape (sewing tape), is placed on the first article to be sewn. Then, a third article to be sewn, for example, a patch (patch) is placed on one side of the second article to be sewn. The three items to be sewn are sewn together by means of a two-needle sewing machine and are cut through simultaneously in order to form a seam (not shown).

Claims (8)

1. A two-needle sewing machine with an upper thread cutting assembly (9),
-having a cutting device (10) for cutting at least two upper threads which are in each case assigned to a stitch-forming part of one of the two needles (6, 7),
-having counter cutting means (11) interacting with the cutting means (10) for cutting the thread,
-wherein the cutting device (10) has two separate blades (12, 13) for in each case one of the upper threads,
-having a cutting interval adjustment device (20) for presetting a nominal interval (A) between the individual blades (12, 13) transverse to the sewing direction (19), wherein the preset nominal interval (A) can be selected from at least two cutting interval values,
-wherein the cutting interval adjustment means (20) are embodied such that, independently of the respective nominal interval (A) being adjusted, the center between two independent blade positions is performed with respect to a central plane (21) extending in a vertically centered manner in the sewing direction (19) between the two needles (6, 7),
-wherein the upper thread cutting assembly (9) is mounted to an upper arm (1) of the two-needle sewing machine.
2. Double-needle sewing machine with an upper thread cutting assembly (9) according to claim 1, characterized in that the cutting interval adjustment device (20) is embodied to preset in a stepless manner a nominal interval (a) between a minimum and a maximum value of the cutting interval.
3. A two-needle sewing machine with an upper thread cutting assembly (9) according to claim 1, characterised in that the counter-cutting device (11) has two separate counter-blades (14, 15) for each upper thread assigned in each case to one of the stitch forming members.
4. Double-needle sewing machine with an upper thread cutting assembly (9) according to claim 1, characterised by comprising two component supports (18r, 18l) with in each case one individual blade (12, 13) and one counter-blade (14, 15).
5. Two-needle sewing machine with an upper thread cutting assembly (9) according to claim 4, characterised in that each of the component supports (18r, 18l) has an obliquely extending slotted opening (23r, 23l), through which slotted opening (23r, 23l) an adjusting bolt (24) displaceable for adjusting the cutting interval extends, which adjusting bolt (24) is mounted in a bolt carrier (27) fixed to the frame.
6. Double needle sewing machine with an upper thread cutting assembly (9) according to claim 5, characterised in that the bolt carrier (27) has an adjustment opening (28) which guides the displacement of the adjustment bolt (24) in an adjustment displacement direction (29).
7. Double needle sewing machine with an upper thread cutting assembly (9) according to claim 5, characterised in that the bolt carrier (27) is embodied with two bolt-carrying parts (30, 31), wherein the two slotted openings (23r, 23l) are arranged between the two bolt-carrying parts (30, 31).
8. Piping bag sewing system with a two-needle sewing machine with an upper thread cutting assembly (9) according to any of claims 1-7.
CN201711116585.3A 2016-11-15 2017-11-13 Top thread cutting assembly, double-needle sewing machine and piping bag sewing system Active CN108070961B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016222427.1A DE102016222427A1 (en) 2016-11-15 2016-11-15 Yarn knife assembly for a two-needle sewing machine, two-needle sewing machine with such a thread knife assembly and piping pocket sewing machine with such a two-needle sewing machine
DE102016222427.1 2016-11-15

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Publication Number Publication Date
CN108070961A CN108070961A (en) 2018-05-25
CN108070961B true CN108070961B (en) 2021-12-03

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CN201711116585.3A Active CN108070961B (en) 2016-11-15 2017-11-13 Top thread cutting assembly, double-needle sewing machine and piping bag sewing system

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JP (1) JP7025895B2 (en)
KR (1) KR20180054488A (en)
CN (1) CN108070961B (en)
DE (1) DE102016222427A1 (en)
TW (1) TWI742196B (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6145793A (en) * 1984-08-06 1986-03-05 ブラザー工業株式会社 Two-needle feed sewing machine
JPH0654978A (en) * 1991-07-19 1994-03-01 Juki Corp Thread cutting device for post type two-needle sewing machine
JPH07116376A (en) * 1993-10-28 1995-05-09 Juki Corp Thread cutting device for double-needle sewing machine
JPH0838775A (en) * 1994-05-27 1996-02-13 Juki Corp Two-needle sewing machine
CN1132278A (en) * 1995-03-28 1996-10-02 重机公司 Thread cutting device of double-needle sewing machine
JPH09117581A (en) * 1995-10-25 1997-05-06 Juki Corp Twin needle sewing machine with a single needle stopping function
JP2007097614A (en) * 2005-09-30 2007-04-19 Juki Corp Sewing machine
CN101545177A (en) * 2008-03-28 2009-09-30 Juki株式会社 Sewing machine
JP2009261426A (en) * 2008-04-21 2009-11-12 Sabun Kogyosho:Kk Horizontal shuttle hook of sewing machine and bobbin case used therein
CN104532491A (en) * 2014-12-30 2015-04-22 浙江宝石机电股份有限公司 Thread trimming mechanism for two-needle sewing machine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256048A (en) * 1979-10-09 1981-03-17 Amf Incorporated Knife mechanism for twin needle sewing apparatus
JPH0757271B2 (en) * 1987-05-05 1995-06-21 ブラザー工業株式会社 Sewing machine for sewing thread
JPH0647428Y2 (en) * 1989-06-06 1994-12-07 ジューキ株式会社 Thread cutting device for two-needle, double-ring sewing machine
DE4223527C1 (en) 1992-07-17 1993-08-26 Duerkopp Adler Ag, 4800 Bielefeld, De Sewing machine folder for making pickets, etc. - has a mounting at shoulder carrying footplate over the laying table to give a free space between
JP3537056B2 (en) * 1994-03-30 2004-06-14 ジューキ株式会社 Bead forming device
DE19845624C1 (en) 1998-10-05 2000-05-11 Duerkopp Adler Ag Sewing system for producing a piped pocket opening
DE19926866C1 (en) 1999-06-12 2000-08-24 Duerkopp Adler Ag Sewing machine with a cutting blade has a twin-setting pneumatic piston/cylinder linear drive for the blade guide rod as a coupling between the main drive and the blade rod
JP4441034B2 (en) * 2000-01-19 2010-03-31 Juki株式会社 Upper thread cutting device for ball stitching device.
JP2001224884A (en) * 2000-02-17 2001-08-21 Brother Ind Ltd Thread guard mechanism of sewing machine

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6145793A (en) * 1984-08-06 1986-03-05 ブラザー工業株式会社 Two-needle feed sewing machine
JPH0654978A (en) * 1991-07-19 1994-03-01 Juki Corp Thread cutting device for post type two-needle sewing machine
JPH07116376A (en) * 1993-10-28 1995-05-09 Juki Corp Thread cutting device for double-needle sewing machine
JPH0838775A (en) * 1994-05-27 1996-02-13 Juki Corp Two-needle sewing machine
CN1132278A (en) * 1995-03-28 1996-10-02 重机公司 Thread cutting device of double-needle sewing machine
JPH09117581A (en) * 1995-10-25 1997-05-06 Juki Corp Twin needle sewing machine with a single needle stopping function
JP2007097614A (en) * 2005-09-30 2007-04-19 Juki Corp Sewing machine
CN101545177A (en) * 2008-03-28 2009-09-30 Juki株式会社 Sewing machine
JP2009261426A (en) * 2008-04-21 2009-11-12 Sabun Kogyosho:Kk Horizontal shuttle hook of sewing machine and bobbin case used therein
CN104532491A (en) * 2014-12-30 2015-04-22 浙江宝石机电股份有限公司 Thread trimming mechanism for two-needle sewing machine

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TW201819706A (en) 2018-06-01
JP7025895B2 (en) 2022-02-25
EP3321409B1 (en) 2019-05-15
EP3321409A1 (en) 2018-05-16
CN108070961A (en) 2018-05-25
KR20180054488A (en) 2018-05-24
JP2018079321A (en) 2018-05-24
DE102016222427A1 (en) 2018-05-17
TWI742196B (en) 2021-10-11

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