WO2019066425A1 - Barre à aiguilles et structure d'accouplement d'aiguille de machine à coudre d'une machine à coudre - Google Patents

Barre à aiguilles et structure d'accouplement d'aiguille de machine à coudre d'une machine à coudre Download PDF

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Publication number
WO2019066425A1
WO2019066425A1 PCT/KR2018/011293 KR2018011293W WO2019066425A1 WO 2019066425 A1 WO2019066425 A1 WO 2019066425A1 KR 2018011293 W KR2018011293 W KR 2018011293W WO 2019066425 A1 WO2019066425 A1 WO 2019066425A1
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WO
WIPO (PCT)
Prior art keywords
needle
sewing machine
hole
needle bar
blade
Prior art date
Application number
PCT/KR2018/011293
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English (en)
Korean (ko)
Inventor
이기선
Original Assignee
이기선
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이기선 filed Critical 이기선
Publication of WO2019066425A1 publication Critical patent/WO2019066425A1/fr

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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B55/00—Needle holders; Needle bars
    • D05B55/02—Devices for fastening needles to needle bars

Definitions

  • the present invention relates to a needle bar assembly and a sewing machine needle coupling structure of a sewing machine, and more particularly, to a needle bar assembly and a sewing machine needle coupling structure for a sewing machine, which can easily combine sewing machine needles into a designated position of a needle bar to be engaged, It is possible to prevent the installation position of the needle blade with the scarf from being changed even when the sewing machine needle of the sewing machine needle is changed to be coupled to the sewing machine needle, The needle bar and the sewing machine needle coupling structure of the sewing machine.
  • Sewing is about making clothes with cloth or other clothing materials. This sort of sewing is a natural change in the life of centuries, and it can be said that it started when civilization began to wear clothes.
  • Such a sewing has been improved so as to be able to make clothes in various shapes according to the use of clothes by using needle or thread which is a sewing tool, away from the time of using natural plant or animal leather that can be worn on the body will be.
  • Such a sewing machine was first produced in 1755 by Chals Weisenthal of Germany, and then in the 1800s, a sewing machine that made a thread link by B. Krems , And in 1834, in France by B. Thimonnier, and in 1834 by American Hunt, there is a record of a machine that can sew a needle through a needle.
  • the sewing machine described above was known to have been introduced in Korea around 1960, and was used as an industrial sewing machine.
  • the needle connected to the yarn is repeatedly inserted and out through the fabric.
  • the lower thread located at the lower end of the fabric is entangled in the thread of the needle penetrating through the fabric, And the needle-like stitch thus formed is made of a straight dotted line on the surface of the cloth.
  • the needle coupled to the needle bar is configured to move up and down, and the upper thread coupled to the needle is configured to be entangled with the lower thread through a kiln positioned at the lower end of the fabric, So as to form a needle sweat formed by crossing the upper thread and the lower thread.
  • the arrangement of the document (2) and the document (3) is such that a sewing machine needle is improved or a method of improving a kiln is proposed so that the upper thread of the needle and the lower thread provided in the drum are easily entangled There is a bar.
  • the sewing machine needle applied to the conventional sewing machine can change the position of the scarf of the sewing machine needle guiding the kiln of the kiln in the process of forming needle sweat on the surface of the cloth, so that the scum of the needle constantly bumps So that a shock due to the rotation of the kiln is transmitted to the needle of the sewing machine so that the needle of the sewing machine can be easily damaged.
  • the position of the scarf of the needle and the position of the scarf of the needle of the sewing machine may be distanced or collided according to the size change of the sewing machine needle.
  • the sewing machine needle can be closely attached to the scarf of the needle while maintaining the predetermined position, thereby preventing the sewing machine needle and the gum- And a sewing machine needle coupling structure of the sewing machine.
  • the present invention provides a needle bar assembly and a sewing machine needle coupling structure of a sewing machine, which can perform a stable sewing process irrespective of a size change of the sewing machine needle even when the sewing machine needle is changed and used.
  • the present invention provides a sewing machine needle assembly and a sewing machine needle coupling structure that enables stable use of a sewing machine needle, thereby securing an efficiency of an overall sewing process and thereby achieving a cost saving effect in a sewing process.
  • a sewing machine including a needle bar and a sewing machine needle coupling structure including a needle bar that is repeatedly moved in the direction of a workpiece placed on a presser bar through a power unit provided on the sewing machine, And a sewing machine needle for processing the workpiece, wherein the needle bar includes a coupling hole formed at an inner center portion thereof, a tightening hole penetratingly formed at a side portion of the needle bar, and a sewing machine needle coupled to the tightening hole, wherein the sewing machine needle includes a bag fitted to the coupling hole, a needle blade extending to one side of the bag, A needle hole formed at an end of the needle blade; and an upper thread formed at one side of the needle blade so as to be entangled with an upper thread inserted into the needle hole, A sewing machine needle assembly and a sewing machine needle coupling structure of a sewing machine including a scarf in which a gauze of a guide is closely contacted, the outer diameter of the bag being formed to be a poly
  • a fixed line is formed in the longitudinal direction on the outside of the needle bar, and a connecting line corresponding to the fixed line is formed along the longitudinal direction of the bag, and the scarf position of the needle blade is brought into close contact with the gauze of the kiln A logo, and a printed material are formed on the side of the fixing line and the connecting line so that the needle and the sewing machine needle can be combined with each other.
  • the inner diameter of the coupling hole and the outer diameter of the bag are formed so as to form a polygon of 6 to 8 or less.
  • an insertion groove is further formed in the inner diameter of the coupling hole along the longitudinal direction, and an insertion protrusion is formed in the outer diameter of the bag to be fitted into the insertion groove.
  • the bag may be formed with a seating groove in which an end of a tightening screw is closely contacted with the tightening hole, the tightening screw being formed by a thread that is fastened to the fastening hole of the needle bar, And when the needle bar and the sewing machine needle are engaged, the thread of the tightening screw is fastened to the fastening hole, and the fastening protrusion is caught in the fastening groove and is firmly fixed.
  • the sewing machine needle can be coupled to the designated position of the needle bar, so that the joining position of the needle bar and the sewing machine needle can be firmly maintained.
  • the scarf of the needle of the sewing machine can be closely attached to the scarf of the scarf while maintaining the predetermined position of the scarf, thereby preventing the stitch of the sewing machine needle from being damaged .
  • the sewing machine needle coupled to the needle bar can be used accurately in a position where it is not interfered with the gauze of the kiln, so that the sewing process can be efficiently achieved.
  • the sewing machine needle can be stably used, the efficiency of the entire sewing process can be ensured, and the cost saving effect in the sewing process can be obtained.
  • FIG. 1 is a schematic view of a sewing machine to which a needle bar and a sewing machine needle coupling structure of a sewing machine are applied;
  • the present invention relates to a sewing machine
  • FIG. 3 is an exploded perspective view showing a needle bar assembly and a sewing machine needle coupling structure of the sewing machine of the present invention.
  • FIG. 4 is a perspective view of a needle bar and a sewing machine needle coupling structure of a sewing machine according to the present invention.
  • FIG. 5 is a perspective view of a needle bar and a sewing machine needle coupling structure of a sewing machine according to another embodiment of the present invention.
  • FIG. 6 is a perspective view of a needle bar and a sewing machine needle coupling structure of a sewing machine according to another embodiment of the present invention.
  • Fig. 7 is an enlarged view of a main portion showing the operating state of a needle bar and a kiln of a sewing machine according to the present invention.
  • FIG. 8 is a flowchart showing a process of entangling the upper thread of the sewing machine needle and the lower thread of the sewing machine according to the structure of the needle bar and the sewing machine needle of the sewing machine of the present invention.
  • FIG. 9 is a front view showing a state in which the positions of the bag and the needle blade are changed in accordance with the change of the lake of the sewing machine needle of the present invention.
  • FIG. 10 is a state of use in which a needle bar and a sewing machine needle are coupled according to Fig.
  • FIG. 11 is a perspective view illustrating a state in which the needle bar and the sewing machine needle according to the present invention are combined according to another embodiment.
  • FIG. 11 is a perspective view illustrating a state in which the needle bar and the sewing machine needle according to the present invention are combined according to another embodiment.
  • a best mode of a needle bar and a sewing machine needle coupling structure of a sewing machine of the present invention is a sewing machine comprising a needle bar repeatedly moved in the direction of a pick bar located on a press bar through a power part provided on the sewing machine, And a tightening screw coupled to the fastening hole and fixing the needle of the sewing machine to be inserted into the fastening hole, wherein the fastening hole is formed at an inner side of the needle bar, Wherein the engaging hole is formed to have a polygonal shape with a diameter of 6 to 8.
  • the sewing machine needle includes a bag fitted to the engaging hole, a needle blade extending to one side of the bag, And the lower thread is guided so as to be entangled with the upper thread formed at one side of the needle thread and inserted into the needle hole
  • the outer diameter of the bag is formed to be 6 to 8 polygons so as to correspond to the engaging hole, wherein the sewing machine needle has a size of the needle blade
  • the position of the needle blade can be maintained at a certain distance from the kiln of the kiln without adjusting the position of the kiln in the kiln according to the change of the position of the needle blade. Is formed to be eccentric.
  • the present invention relates to a needle bar (10) which is repeatedly moved in the direction of a pick-up (4) placed on a press table (3) through a power section (2) provided in a sewing machine (1) And a sewing machine needle 20 for processing the workpiece 4.
  • the needle bar 10 includes a coupling hole 11 formed at an inner center portion of the needle bar 10 and a fastening hole 11 formed through the side of the needle bar 10 And a tightening screw 13 coupled to the fastening hole 12 and fixing the sewing machine needle 20 to be inserted into the fastening hole 11.
  • the inside diameter of the fastening hole 11 is 6 to 20 mm
  • the sewing machine needle 20 is formed to have a polygonal shape within 8 or less and the sewing machine needle 20 has a bag 21 to be fitted to the coupling hole 11 and a needle blade 22 extending to one side of the bag 21, A needle hole 23 formed at an end of the needle blade 22 and a lower thread 6b formed at one side of the needle blade 22 so as to be entangled with an upper thread 6a inserted into the needle hole 23.
  • the outer diameter of the bag 21 is formed so as to have a polygon of 6 to 8 or less corresponding to the engaging hole 11,
  • the sewing machine needle 20 is moved in the direction of movement of the needle blade 22 without changing the position of the gimbal 5b of the needle 5 according to the size change of the needle blade 22,
  • the position of the scarf 24 of the needle blade 22 is maintained at a constant distance from the gimbal 5b of the kiln 5 by changing the diameter of the needle blade 22, Is eccentrically formed.
  • the sewing machine 1 is connected to the needle bar 10 so that the needle bar 10 can move up and down by the operation of the power unit 2.
  • the configuration of the sewing machine 1 is as follows. A detailed description thereof will be omitted.
  • the coupling hole 11 is formed at an inner central portion of the needle bar 10, and is formed to have 6 to 8 polygons.
  • the fastening hole 12 is formed on the side of the needle bar 10 and is connected to the fastening hole 12 through the fastening screw 13
  • the portion of the bag 21 of the sewing machine needle 20 that has been engaged inside the engaging hole 11 of the needle bar 10 is engaged with the engaging hole 11 of the needle bar 10 by transmitting pressure to the side of the bag 21 coupled to the hole 11 11 in the direction of the arrows.
  • the engaging holes 11 are formed to have a polygonal inner diameter of 6 to 8.
  • the outer diameter of the outer diameter of the sewing machine needle 20, which is engaged with the engaging holes 11, Is formed so as to be firmly coupled to the inside of the coupling hole (11) when the polygon is formed within 6 to 8 polygons.
  • the engaging holes 11 to have a polygonal shape of 6 to 8 or less, the portion of the bag 21 of the sewing machine needle 20 that is coupled to the engaging hole 11 can be easily removed from the engaging hole 11 And prevents the portion of the bag 21 coupled to the coupling hole 11 from being rotated.
  • the present invention is not limited to this configuration and may be applied to a case where the handle 21 of the sewing machine needle 20 is inserted into the engaging hole 11
  • the outer diameter of the coupling hole 11 and the corresponding outer diameter of the bag 21 may be changed in various ways.
  • the coupling holes 11 are formed in a polygonal shape with 6 to 8 or less polygonal shapes, so that after the bag 21 is coupled to the inside of the coupling hole 11, So as to easily prevent the bag 21 from rotating.
  • the fastening hole 12 is formed on a selected side portion of the needle bar 10 as described above.
  • the fastening hole 12, which is engaged with the fastening hole 12 The state in which the bag 21 of the sewing machine needle 20 is coupled to the inside of the engaging hole 11 of the needle bar 10 according to the engaged state of the needle bar 13 can be adjusted according to the user's selection.
  • the structure in which the tightening hole 12 and the tightening screw 13 are combined may be constructed by applying a structure in which a conventional nut and a bolt are combined, and the tightening screw 13 is controlled by a user The side of the tightening screw 13 is brought into contact with the outer surface of the bag 21 located inside the engaging hole 11 and the pressure of the tightening screw 13 can be transmitted to the outside of the bag 21
  • the structure in which the tightening hole 12 and the tightening screw 13 are combined can be variously modified and applied.
  • the outer diameter of the bag 21 of the sewing machine needle 20 is formed to be within a range of 6 to 8 polygons corresponding to the engaging holes 11 of the needle bar 10, This configuration is configured to correspond to the shape of the coupling hole 11 provided in the needle bar 10.
  • the configuration as described above is a structure for preventing the bag 21 coupled to the coupling hole 11 from moving inside the coupling hole 11.
  • the shape of the coupling hole 11 is changed It has been described that the engagement between the engagement hole 11 and the bag 21 is firmly maintained and the engagement position of the bag 21 coupled to the engagement hole 11 is prevented from being changed,
  • the outer diameter of the bag 21 is formed to have a shape corresponding to the shape of the engaging hole 11 in which the engaging hole 11 is engaged with the engaging hole 11, It is possible to more easily prevent the rotation or the change in the position of the movable member 11 inside the movable member 11.
  • the needle blade 22, the needle hole 23 and the scarf 24 of the sewing machine needle 20 have the same function and configuration as those of the needle blade, needle hole and scarf provided in the conventional sewing machine needle A detailed description thereof will be omitted.
  • the position of the scarf 24 is determined by the position of the needle bar 10 (see FIG. 1) through a configuration in which the inside diameter of the coupling hole 11 and the outside diameter of the bag 21 are formed to be six 7, the gum nose 5b of the kiln 5, which is in close contact with the surface of the scarf 24, is held by the sewing machine needle 20, It is possible to easily prevent the needle bar 22 from colliding with the outer side of the needle blade 22.
  • the inner diameter of the engaging hole 11 and the outer diameter of the bag 21 are formed to be in the range of 6 to 8 polygons, because the inner diameter of the engaging hole 11 and the outer diameter of the bag 21 are sewn
  • the inner diameter of the engaging hole 11 and the outer diameter of the bag 21 may be less than six or eight,
  • the bag 21 coupled to the engaging hole 11 may be rotated about the axis, Processing in the manufacturing process may be difficult, and as described above, it is most preferable to form polygons within 6 to 8 pieces.
  • a fixed line 10a is formed on the outer side of the needle bar 10 in the longitudinal direction thereof, and the sewing machine needle 20 is connected to the fixed line 10a (20a) corresponding to the longitudinal direction of the bag (21).
  • This configuration is advantageous in that when the bag 21 of the sewing machine needle 20 is engaged with the engaging hole 11 of the needle bar 10, the position of the scarf 24 formed at one side of the needle blade 22 of the sewing machine needle 20
  • the inner diameter of the engaging hole 11 and the inner diameter of the bag 5b are set so that the inner diameter of the engaging hole 11 can be easily set to a position where it can be brought into close contact with the gimbal 5b of the kiln 5 to which the lower thread 6b is connected.
  • the position of the scarf 24 of the needle blade 22 can be adjusted by a simple method of joining the fixing line 10a formed on the outer side of the needle bar 10 to the coupling line 20a formed on the bag 21 so as to form the same position, (5b) of the housing (5).
  • the fixed line 10a and the connecting line 20a may be formed of any one of a pigment, a scratch, a logo, and a printed material.
  • the fixing line 10a formed on the outer side of the needle bar 10 and the bag 21 formed on the side of the fixing line 10a and the coupling line 20a are formed to be one of pigment, So that the position of the scarf 24 of the needle blade 22 can be closely contacted with the gimbal 5b of the kiln 5 by making it easier to adjust the position of the connecting line 20a formed on the needle blade 22. [ So that the needle bar 10 and the sewing machine needle 20 are engaged with each other.
  • an insertion groove 11a is further formed in the inner diameter of the coupling hole 11 along the longitudinal direction, and an outer diameter of the bag 21 is fitted into the insertion groove 11a
  • the insertion protrusion 21a is formed.
  • This structure is a combined structure of a needle bar and a sewing machine needle of a sewing machine according to another embodiment of the present invention.
  • FIG. 6 when the combining hole 11 and the bag 21 are engaged, The bag 21 coupled to the inside of the coupling hole 11 is more firmly coupled through the coupling structure of the insertion groove 11a and the insertion protrusion 21a, So that it is possible to more effectively prevent the rotation or the combined position from being changed.
  • the insertion groove 11a is formed in the inner diameter of the coupling hole 11 and the insertion protrusion 21a is formed at the outer diameter of the bag 21.
  • the insertion protrusions may be formed to protrude from the inner circumference of the coupling hole 11 and the insertion holes may be formed at the outer diameter of the bag 21 so as to be coupled with each other.
  • the sewing machine needle 20 is moved along the needle blade 22 with respect to the longitudinal center line of the bag 21 in accordance with the diameter change of the needle blade 22, Is formed to be eccentric.
  • the change of the position of the needle blade 22 is such that even when the size of the needle blade 22 constituting the sewing machine needle 20 is changed according to the lake of the sewing machine needle 20, 9 (a), 9 (b), 9 (c) and 9 (d), the position of the needle blade 22 is changed according to the size of the sewing machine needle 20 10 of the sewing machine needle 20 through the structure of the needle blade 22 formed eccentrically with respect to the longitudinal center line of the bag 21 even when the size of the needle bar 22 varies depending on the lake,
  • the position of the scarf 24 of the needle blade 22 can be maintained at a predetermined distance from the gimbal 5b of the kiln 5 so that the needle blade 22 of the sewing machine needle 20 can be moved
  • the sewing machine needle 20 whose size is changed by the needle bar 10 is used without being required to adjust the position of the gimbal 5b of the jar 5 according to the size change It is possible to achieve a static sewing operation.
  • the sewing machine needle 20 can be conveniently connected to the lower end of the needle bar 10 without the inconvenience of adjusting the interval between the needle bar 10 and the needle bar 5b.
  • the bag 21 is formed with a seating groove 21b in which an end of a tightening screw 13 is tightly coupled to the tightening hole 12, and the tightening screw 13 Includes a thread 13a fastened to the fastening hole 12 of the needle bar 10 and a fastening protrusion 13b protruding from the side of the thread 13a and coming into close contact with the fastening hole 21b And the thread 13a of the tightening screw 13 is fastened to the fastening hole 12 and the fastening protrusion 13b is fastened to the fastening hole 21b when the needle bar 10 and the sewing machine needle 20 are fastened together. So as to be firmly fixed.
  • This configuration is such that when the needle bar 10 and the sewing machine needle 20 are engaged, the thread 13a of the tightening screw 13 is fastened to the fastening hole 12, and then the fastening protrusion 13b is fitted into the fastening hole 12
  • the bag 21 of the sewing machine needle 20 coupled to the coupling hole 11 of the needle bar 10 can be firmly coupled through the tightening screw 13 It is.
  • the scarf 24 formed in the needle blade 22, 5 can be easily prevented from colliding with or falling away from the grommet 5b of the sewing machine needle 5 and the position of the needle bar 10 and the sewing machine needle 20 can be easily changed to ensure the efficiency of the sewing process So that a stable sewing process can be achieved.

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

Abstract

La présente invention concerne une barre à aiguilles et une structure d'accouplement d'aiguille de machine à coudre d'une machine à coudre, permettant à une aiguille de machine à coudre d'être facilement accouplée à une position prédéfinie sur une barre à aiguilles, ce qui empêche l'aiguille de machine à coudre d'entrer en collision avec la pointe d'une navette et permet l'exécution stable d'un processus de couture. La structure d'accouplement de barre à aiguilles et d'aiguille de machine à coudre d'une machine à coudre est caractérisée en ce qu'elle comprend : une barre à aiguilles qui, au moyen d'une partie d'alimentation fournie à une machine à coudre, se déplace de manière répétée dans la direction d'un objet à coudre qui est positionné au niveau d'un élément presseur ; et une aiguille de machine à coudre qui est accouplée à la barre à aiguilles de façon à fabriquer l'objet à coudre. La barre à aiguilles comprend : un trou de raccordement formé au niveau de la partie centrale interne ; un trou de serrage formé de façon pénétrante au niveau de la partie latérale de la barre à aiguilles ; et une vis de serrage accouplée au trou de serrage de façon à fixer l'aiguille de machine à coudre qui est insérée dans le trou de raccordement, le diamètre interne du trou de raccordement étant formé de façon à former jusqu'à 6 à 8 polygones. L'aiguille de machine à coudre comprend : une tige accouplée par insertion au trou de raccordement ; une lame d'aiguille formée en extension sur un côté de la tige ; un chas d'aiguille formé sur la partie terminale de la lame d'aiguille ; et une encoche formée sur un côté de la lame d'aiguille et la pointe de la navette adhérant étroitement à l'encoche, un fil inférieur est guidé de telle sorte qu'il est entrelacé avec un fil supérieur inséré dans le chas d'aiguille, le diamètre externe de la tige étant formé de manière à former jusqu'à 6 à 8 polygones, de manière à correspondre au trou de raccordement. L'aiguille de machine à coudre est formée de telle sorte que, en fonction d'un changement du diamètre de la lame d'aiguille, la position de la lame d'aiguille est formée de manière excentrique par rapport à la ligne centrale de direction de longueur de la tige, ce qui permet de maintenir la position de l'encoche de la lame d'aiguille à une distance prédéfinie de la pointe de la navette sans avoir à régler la position de la pointe de la navette chaque fois que la taille de la lame d'aiguille change.
PCT/KR2018/011293 2017-09-27 2018-09-21 Barre à aiguilles et structure d'accouplement d'aiguille de machine à coudre d'une machine à coudre WO2019066425A1 (fr)

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KR10-2017-0124837 2017-09-27
KR1020170124837A KR101928061B1 (ko) 2017-09-27 2017-09-27 재봉틀의 바늘대와 재봉틀바늘 결합구조

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5632667U (fr) * 1979-08-22 1981-03-31
US4480563A (en) * 1981-07-25 1984-11-06 Jos. Zimmermann Tufting needle
JPS6293981U (fr) * 1985-12-03 1987-06-16
JPH11309288A (ja) * 1998-04-27 1999-11-09 Brother Ind Ltd ミシン及びミシンの縫針保持装置
JP2000070580A (ja) * 1998-08-31 2000-03-07 Juki Corp ミシンの針棒

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19807771C1 (de) 1998-02-24 1999-04-15 Duerkopp Adler Ag Augenknopfloch-Nähmaschine
JP4043319B2 (ja) 2002-08-23 2008-02-06 オルガン針株式会社 ミシン針
KR100740523B1 (ko) 2006-06-16 2007-07-18 박중선 재봉틀의 밑실공급장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5632667U (fr) * 1979-08-22 1981-03-31
US4480563A (en) * 1981-07-25 1984-11-06 Jos. Zimmermann Tufting needle
JPS6293981U (fr) * 1985-12-03 1987-06-16
JPH11309288A (ja) * 1998-04-27 1999-11-09 Brother Ind Ltd ミシン及びミシンの縫針保持装置
JP2000070580A (ja) * 1998-08-31 2000-03-07 Juki Corp ミシンの針棒

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