EP2463430A1 - Interlocking device for a spooling capsule - Google Patents

Interlocking device for a spooling capsule Download PDF

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Publication number
EP2463430A1
EP2463430A1 EP11405359A EP11405359A EP2463430A1 EP 2463430 A1 EP2463430 A1 EP 2463430A1 EP 11405359 A EP11405359 A EP 11405359A EP 11405359 A EP11405359 A EP 11405359A EP 2463430 A1 EP2463430 A1 EP 2463430A1
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EP
European Patent Office
Prior art keywords
gripper
bobbin case
coil
locking
bobbin
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP11405359A
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German (de)
French (fr)
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EP2463430B1 (en
Inventor
Niklaus Wacker
André Stucki
Heinz Janouschek
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BERNINA International AG
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BERNINA International AG
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Publication date
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Publication of EP2463430A1 publication Critical patent/EP2463430A1/en
Application granted granted Critical
Publication of EP2463430B1 publication Critical patent/EP2463430B1/en
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B57/00—Loop takers, e.g. loopers
    • D05B57/26—Bobbin holders or casings; Bobbin holder or case guards; Bobbin discharge devices

Definitions

  • the invention relates to a locking device for a bobbin case for a bobbin according to the preamble of patent claim 1.
  • the bobbin of sewing machines can either be stored directly in the bobbin and is thus directly accessible. It can also be inserted in a specially designed bobbin case, which in turn is mounted in the bobbin.
  • the present invention relates to a bobbin mounted in a bobbin.
  • a locking device for a lower thread bobbin in which a coil passing through the central opening in the coil locking device is held on a spring on the coil carrier and automatically locks the coil after the complete depression of the coil in the bobbin.
  • the locking element By a radial displacement of the locking element to the axis of rotation of the coil, the latter can be released again from the lock. It is then ejected by the spring carrying the locking element.
  • An object of the present invention is to provide a locking device for a bobbin case with a lower bobbin, with which the bobbin case is locked in the bobbin and held securely in all operating conditions there.
  • an axial pushing out of the bobbin case should be effected together with the coil from the bobbin after loosening.
  • FIG. 1 which represents an axial cross-section through a gripper 1 with a bobbin case 3 inserted therein and a coil 5 arranged in the bobbin case 3, all features important to the invention can be seen.
  • the sleeve 9 comprises a central cylindrical portion 11, on the periphery of a circumferential groove 13 is formed, one edge of which extends approximately at right angles to the axis of the sleeve 9 and the second edge in a Angle of about 45 °.
  • the lower end of the sleeve 9 is closed by a flange 15, on the one hand rests on a collar 17 on the gripper 1 and on the other hand, the collar 17 projects radially beyond.
  • the flange 15 opposite end of the sleeve 9 has, for example, an inner diameter which is greater than the inner diameter of the sleeve in the other areas. With one in the thorn 7 engaging and there in a threaded bore 19 meshing screw 21, the sleeve 9 is held on the mandrel 7.
  • the sleeve 9 could also be an integral part of the gripper 1, ie not be designed as an independent plugged element.
  • a coil spring 23 is attached and supported on one side on the flange 15 and held there.
  • the bobbin case 3 comprises a jacket 25 and, in FIG. 1 front, outside a spherical shaped sky 27. This is arcuate in the mantle 25 over.
  • a diagonally extending slot-shaped opening 29 is mounted and a perpendicular to the opening 29 extending, the sky 27 is not completely penetrating recess 31.
  • In the recess 31 is a shaft 33 which penetrates a two-armed locking lever 35.
  • the locking lever 35 is located in the slot-shaped opening 29.
  • a torsion spring 37 (only partially visible) wraps around the shaft 33 and abuts with its first end on the inside of the sky 27; its second end 39 penetrates in a bore 41, the locking lever 35 or externally on this at (see FIG. 5 ).
  • the locking lever 35 includes, arranged asymmetrically to the shaft 33, depending on a substantially perpendicular from the parallel to the sky 27 extending main leg 43 projecting locking leg 45 and spaced from one another Brake leg 47. From the FIGS. 1 and 2 is also apparent that in the sky 27 of the coil 5, a recessed grip 49 is recessed, which allows to depress the locking lever 35 on the shaft 33 with a finger and thereby to pivot, so that the hook-shaped end 51 on the locking leg 45 from its spring-loaded detent position in the groove 13 is to dissolve. In the pivoted and released position of the back of the locking leg 45 is frictionally against the wall of the bore 53 in the coil 5.
  • the bobbin case 3 is pushed axially out of the gripper 1 by the tension force of the helical spring 23, because the second end of the spring 23 rests on a shoulder 55 in the bobbin case 3 (see FIG FIG. 5 ).
  • the bobbin case 3 is now moved out of the gripper 1 by hand.
  • the coil 5 is still frictionally held by the back of the locking leg 45 of the locking lever 35.
  • the locking lever 35 pivots clockwise and holds the coil 5 via the back of the brake leg 47 fixed (see FIG. 6 ).
  • FIG. 7 It can be seen that the locking lever 45 by the force of the torsion spring 37 in the clockwise direction completely after pivots right and rests with a formed on the main leg 43 nose-shaped end 59 to a shoulder 61 in the opening 29.
  • a refilled bobbin 5 is inserted from above into the bobbin case 3. It slides while applying a certain resistance on an inclined surface 57 on the brake arm 47 of the locking lever 35 down and is then held by the back of the brake arm 47 in position.
  • the coil 5 is held and can, even if the bobbin case 3 is tilted slightly downwards, do not fall out of this.
  • the hook-shaped end 51 of the locking leg 45 abuts against the sleeve 9
  • the locking lever 35 is slightly pivoted counterclockwise. Upon further insertion, the hook-shaped end 51 slides along the jacket of the sleeve 9 until the hook-shaped end 51 reaches the recess 13 and can latch in there.

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

Abstract

The Locking device has a two-armed locking structure (35) for holding a bobbin case (3) in a gripper (1). A spring (23) is provided for ejecting the bobbin case from the gripper. The two-armed locking structure is mounted on slot-shaped opening (29) provided in bobbin case. A latching leg having a hook-shaped end, is intended to inserted into a recess (13) on a bobbin core (9) in gripper when the bobbin case is inserted into the gripper against the force of the spring.

Description

Gegenstand der Erfindung ist eine Verriegelungsvorrichtung für eine Spulenkapsel für eine Unterfadenspule gemäss Oberbegriff des Patentanspruchs 1.The invention relates to a locking device for a bobbin case for a bobbin according to the preamble of patent claim 1.

Die Unterfadenspule von Nähmaschinen, insbesondere Haushaltnähmaschinen, kann entweder direkt im Spulenträger gelagert sein und ist somit direkt zugänglich. Sie kann auch in einer eigens dafür bestimmten Spulenkapsel eingelegt sein, welche ihrerseits im Spulenträger gelagert ist. Die vorliegende Erfindung bezieht sich auf eine in einer Spulenkapsel gelagerte Unterfadenspule.The bobbin of sewing machines, especially household sewing machines, can either be stored directly in the bobbin and is thus directly accessible. It can also be inserted in a specially designed bobbin case, which in turn is mounted in the bobbin. The present invention relates to a bobbin mounted in a bobbin.

Aus der EP 1541736 B1 ist eine Verriegelungsvorrichtung für eine Unterfadenspule bekannt, bei der am Spulenträger eine durch die zentrale Öffnung in der Spule hindurchführbare Verriegelungsvorrichtung auf einer Feder gehalten ist und nach dem vollständigen Niederdrücken der Spule in den Spulenträger die Spule automatisch verrastet. Durch eine radiale Verschiebung des Verriegelungselements zur Drehachse der Spule hin, kann letztere wieder aus der Verriegelung gelöst werden. Sie wird danach durch die das Verriegelungselement tragende Feder ausgestossen.From the EP 1541736 B1 a locking device for a lower thread bobbin is known, in which a coil passing through the central opening in the coil locking device is held on a spring on the coil carrier and automatically locks the coil after the complete depression of the coil in the bobbin. By a radial displacement of the locking element to the axis of rotation of the coil, the latter can be released again from the lock. It is then ejected by the spring carrying the locking element.

Eine Aufgabe der vorliegenden Erfindung ist die Schaffung einer Verriegelungsvorrichtung für eine Spulenkapsel mit einer Unterfadenspule, mit der die Spulenkapsel im Spulenträger eingerastet und in allen Betriebszuständen dort sicher gehalten wird. Zusätzlich soll ein axiales Ausschieben der Spulenkapsel zusammen mit der Spule aus dem Spulenträger nach dem Lösen bewirkt werden.An object of the present invention is to provide a locking device for a bobbin case with a lower bobbin, with which the bobbin case is locked in the bobbin and held securely in all operating conditions there. In addition, an axial pushing out of the bobbin case should be effected together with the coil from the bobbin after loosening.

Gelöst wird diese Aufgabe durch eine Verriegelungsvorrichtung gemäss den Merkmalen des Patentanspruchs 1. Vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen näher umschrieben.This object is achieved by a locking device according to the features of claim 1. Advantageous embodiments of the invention are described in more detail in the dependent claims.

Durch einen axial verlaufenden Druck auf ein in der Oberfläche der Spulenkapsel liegendes Verriegelungselement kann die Halteposition, welche die Spule im Greifer gefangen hält, aufgelöst und gleichzeitig der teilweise Auswurf der Spulenkapsel mit der Spule eingeleitet werden. Die Verriegelung einer neuen in den Greifer einzusetzenden Spulenkapsel mit einer Spule erfolgt durch axiales Einschieben der Spulenkapsel in den Greifer, bis diese vollständig in der Ausnehmung im Greifer liegt. Es sind dazu und danach keine weiteren Verriegelungshandlungen notwendig. Im Nähbetrieb wird die vom Verriegelungselement gehaltene Spule durch das Verriegelungselement in keiner Art und Weise gebremst, weil letzteres die Spule im Betriebszustand nicht berührt. Beim Einlegen der Spule in die Spulenkapsel wird diese kraftschlüssig vom Verriegelungselement gehalten, sodass beim Einsetzen der Spulenkapsel mit der Spule in den Greifer, die Spule nicht aus der Spulenkapsel herausfallen kann. Beim Entriegeln für das Entnehmen der Spulenkapsel aus dem Greifer wird die in der Spulenkapsel liegende Spule, solange das Verriegelungselement betätigt wird, von letzterem gehalten und die Spulenkapsel kann dadurch ohne zusätzliche Manipulation aus dem Greifer entnommen werden.By an axially extending pressure on a lying in the surface of the bobbin locking element, the holding position which holds the coil trapped in the gripper, dissolved and at the same time the partial ejection of the bobbin case are introduced to the coil. The locking of a new to be used in the gripper bobbin case with a coil by axial insertion of the bobbin case in the gripper until it lies completely in the recess in the gripper. There are no further interlocking actions and then necessary. In the sewing operation, the coil held by the locking element by the locking element in no Slowed down way, because the latter does not touch the coil in the operating state. When inserting the coil in the bobbin case this is frictionally held by the locking element, so that when inserting the bobbin case with the coil in the gripper, the coil can not fall out of the bobbin case. When unlocking for the removal of the bobbin case from the gripper lying in the bobbin coil, as long as the locking element is actuated, held by the latter and the bobbin case can be removed without additional manipulation of the gripper.

Anhand eines illustrierten Ausführungsbeispiels wird die Erfindung näher erläutert. Es zeigen

Figur 1
einen Axialschnitt durch einen Greifer mit eingesetzter Spulenkapsel und Spule,
Figur 2
eine perspektivische Darstellung einer Spulenkapsel deckelseitig,
Figur 3
einen Axialschnitt durch die Spulenkapsel samt dort eingesetzter Spule, Verriegelung eingerastet,
Figur 4
einen Axialschnitt durch die Spulenkapsel unmittelbar vor dem Einrasten der Spulenkapsel,
Figur 5
einen Axialschnitt durch die Spulenkapsel, Verriegelungselement ausgerastet und Spulenkapsel herausfahrend,
Figur 6
einen Axialschnitt durch eine Spulenkapsel mit Verriegelungselement in Spulenhaltestellung, bei Einsetzen in den Greifer,
Figur 7
eine Spulenkapsel ohne Spule und die herausgenommene Spule.
Reference to an illustrated embodiment, the invention is explained in detail. Show it
FIG. 1
an axial section through a gripper with inserted bobbin case and coil,
FIG. 2
a perspective view of a bobbin lid side,
FIG. 3
an axial section through the bobbin case including coil inserted there, latch engaged,
FIG. 4
an axial section through the bobbin case immediately before the locking of the bobbin case,
FIG. 5
an axial section through the bobbin case, locking element disengaged and moving out bobbin case,
FIG. 6
an axial section through a bobbin case with locking element in the bobbin holding position, when inserted into the gripper,
FIG. 7
a bobbin case without a bobbin and the removed bobbin.

In Figur 1, welche einen axialen Querschnitt durch einen Greifer 1 mit einer darin eingesetzten Spulenkapsel 3 und einer in der Spulenkapsel 3 angeordneten Spule 5 darstellt, sind sämtliche für die Erfindung wichtigen Merkmale ersichtlich. Auf einem am Greifer 1 angeformten Dorn 7 sitzt eine Hülse 9. Die Hülse 9 umfasst einen zentralen zylindrischen Abschnitt 11, auf dessen Peripherie ein umlaufender Einstich 13 ausgebildet ist, dessen eine Flanke annähernd rechtwinklig zur Achse der Hülse 9 verläuft und dessen zweite Flanke in einem Winkel von ca. 45° liegt. Das untere Ende der Hülse 9 wird durch einen Flansch 15 abgeschlossen, der einerseits an einem Bund 17 am Greifer 1 anliegt und andererseits den Bund 17 radial überragt. Das dem Flansch 15 gegenüberliegende Ende der Hülse 9 weist beispielsweise einen Innendurchmesser auf, der grösser ist als der Innendurchmesser der Hülse in den übrigen Bereichen. Mit einer in den Dorn 7 eingreifenden und dort in einer Gewindebohrung 19 kämmenden Schraube 21 wird die Hülse 9 am Dorn 7 festgehalten. Die Hülse 9 könnte auch integraler Teil des Greifers 1 sein, d.h. nicht als unabhängiges aufgestecktes Element ausgebildet sein.In FIG. 1 which represents an axial cross-section through a gripper 1 with a bobbin case 3 inserted therein and a coil 5 arranged in the bobbin case 3, all features important to the invention can be seen. The sleeve 9 comprises a central cylindrical portion 11, on the periphery of a circumferential groove 13 is formed, one edge of which extends approximately at right angles to the axis of the sleeve 9 and the second edge in a Angle of about 45 °. The lower end of the sleeve 9 is closed by a flange 15, on the one hand rests on a collar 17 on the gripper 1 and on the other hand, the collar 17 projects radially beyond. The flange 15 opposite end of the sleeve 9 has, for example, an inner diameter which is greater than the inner diameter of the sleeve in the other areas. With one in the thorn 7 engaging and there in a threaded bore 19 meshing screw 21, the sleeve 9 is held on the mandrel 7. The sleeve 9 could also be an integral part of the gripper 1, ie not be designed as an independent plugged element.

Auf der Hülse 9 ist eine Schraubenfeder 23 aufgesteckt und einseitig am Flansch 15 abgestützt und dort gehalten.On the sleeve 9, a coil spring 23 is attached and supported on one side on the flange 15 and held there.

Die Spulenkapsel 3 umfasst einen Mantel 25 und, in Figur 1 vorne, aussen einen sphärisch geformten Himmel 27. Dieser geht bogenförmig in den Mantel 25 über. Im Himmel 27 ist eine diagonal verlaufende schlitzförmige Öffnung 29 angebracht und eine rechtwinklig zur Öffnung 29 verlaufende, den Himmel 27 nicht vollständig durchdringende Ausnehmung 31. In der Ausnehmung 31 liegt eine Welle 33, welche einen zweiarmigen Verriegelungshebel 35 durchdringt. Der Verriegelungshebel 35 liegt in der schlitzförmigen Öffnung 29. Eine Torsionsfeder 37 (nur teilweise sichtbar) umschlingt die Welle 33 und liegt mit ihrem ersten Ende an der Innenseite des Himmels 27 an; ihr zweites Ende 39 durchdringt in einer Bohrung 41 den Verriegelungshebel 35 oder liegt aussen an diesem an (vergleiche Figur 5).The bobbin case 3 comprises a jacket 25 and, in FIG. 1 front, outside a spherical shaped sky 27. This is arcuate in the mantle 25 over. In the sky 27, a diagonally extending slot-shaped opening 29 is mounted and a perpendicular to the opening 29 extending, the sky 27 is not completely penetrating recess 31. In the recess 31 is a shaft 33 which penetrates a two-armed locking lever 35. The locking lever 35 is located in the slot-shaped opening 29. A torsion spring 37 (only partially visible) wraps around the shaft 33 and abuts with its first end on the inside of the sky 27; its second end 39 penetrates in a bore 41, the locking lever 35 or externally on this at (see FIG. 5 ).

Der Verriegelungshebel 35 umfasst, asymmetrisch zur Welle 33 angeordnet, je einen im Wesentlichen rechtwinklig vom parallel zum Himmel 27 verlaufenden Hauptschenkel 43 abstehenden Rastschenkel 45 und beabstandet dazu einen Bremsschenkel 47. Aus den Figuren 1 und 2 ist weiter ersichtlich, dass im Himmel 27 der Spule 5 eine Griffmulde 49 eingelassen ist, welche es erlaubt, mit einem Finger den Verriegelungshebel 35 auf der Welle 33 niederzudrücken und dadurch zu verschwenken, so dass das hakenförmige Ende 51 am Rastschenkel 45 aus seiner federbelasteten Rastposition im Einstich 13 herauszulösen ist. In der geschwenkten und ausgelösten Stellung liegt der Rücken des Rastschenkels 45 an der Wand der Bohrung 53 in der Spule 5 reibschlüssig an.The locking lever 35 includes, arranged asymmetrically to the shaft 33, depending on a substantially perpendicular from the parallel to the sky 27 extending main leg 43 projecting locking leg 45 and spaced from one another Brake leg 47. From the FIGS. 1 and 2 is also apparent that in the sky 27 of the coil 5, a recessed grip 49 is recessed, which allows to depress the locking lever 35 on the shaft 33 with a finger and thereby to pivot, so that the hook-shaped end 51 on the locking leg 45 from its spring-loaded detent position in the groove 13 is to dissolve. In the pivoted and released position of the back of the locking leg 45 is frictionally against the wall of the bore 53 in the coil 5.

Unmittelbar nach dem Schwenken des Verriegelungshebels 35 wird die Spulenkapsel 3 von der Spannkraft der Schraubenfeder 23 aus dem Greifer 1 axial hinausgestossen, weil das zweite Ende der Feder 23 auf einem Absatz 55 in der Spulenkapsel 3 anliegt (vergleiche Figur 5). Die Spulenkapsel 3 ist nun von Hand aus dem Greifer 1 herausfahrbar. Dabei wird die Spule 5 noch vom Rücken des Rastschenkels 45 des Verriegelungshebels 35 reibschlüssig gehalten. Sobald die Kraft F auf den Verriegelungshebel 35 nachlässt, d.h. wenn die Bedienungsperson die Spulenkapsel peripher mit zwei Fingern erfasst, schwenkt der Verriegelungshebel 35 im Uhrzeigersinn und hält die Spule 5 via Rücken des Bremsschenkels 47 fest (vergleiche Figur 6).Immediately after the pivoting of the locking lever 35, the bobbin case 3 is pushed axially out of the gripper 1 by the tension force of the helical spring 23, because the second end of the spring 23 rests on a shoulder 55 in the bobbin case 3 (see FIG FIG. 5 ). The bobbin case 3 is now moved out of the gripper 1 by hand. The coil 5 is still frictionally held by the back of the locking leg 45 of the locking lever 35. As soon as the force F on the locking lever 35 decreases, ie when the operator grasps the bobbin case peripherally with two fingers, the locking lever 35 pivots clockwise and holds the coil 5 via the back of the brake leg 47 fixed (see FIG. 6 ).

Aus Figur 7 ist ersichtlich, dass der Rasthebel 45 durch die Kraft der Torsionsfeder 37 im Urzeigersinn ganz nach rechts schwenkt und mit einem am Hauptschenkel 43 ausgebildeten nasenförmigen Ende 59 an einen Absatz 61 in der Öffnung 29 anliegt.Out FIG. 7 It can be seen that the locking lever 45 by the force of the torsion spring 37 in the clockwise direction completely after pivots right and rests with a formed on the main leg 43 nose-shaped end 59 to a shoulder 61 in the opening 29.

Eine wieder aufgefüllte Unterfadenspule 5 wird von oben in die Spulenkapsel 3 eingelegt. Dabei gleitet sie unter Aufbringen eines gewissen Widerstands über eine Schrägfläche 57 am Bremsschenkel 47 des Verriegelungshebels 35 nach unten und wird danach vom Rücken des Bremsschenkels 47 in Position gehalten. Beim Einführen der Spulenkapsel 3 in den Greifer 1 wird dadurch die Spule 5 festgehalten und kann, auch wenn die Spulenkapsel 3 etwas nach unten geneigt wird, nicht aus dieser herausfallen. Sobald das hakenförmige Ende 51 des Rastschenkels 45 an der Hülse 9 anstösst, wird der Verriegelungshebel 35 leicht im Gegenuhrzeigersinn geschwenkt. Beim weiteren Einschieben gleitet das hakenförmige Ende 51 entlang dem Mantel der Hülse 9 bis das hakenförmige Ende 51 den Einstich 13 erreicht und dort einklinken kann. Nun ist die Spulenkapsel 3 samt der Spule 5 in Greifer 1 gehalten und kann nicht mehr aus diesem herausfallen. Sowohl der Rastschenkel 45 als auch der Bremsschenkel 47 liegen in der eingerasteten Position beabstandet zur Innenwand der Bohrung in der Spule 5. Letztere ist dadurch frei drehbar gehalten. In dieser Position liegt auch die Aussenfläche des Hauptschenkels 43 unterhalb der Aussenkontur des Himmels 27.A refilled bobbin 5 is inserted from above into the bobbin case 3. It slides while applying a certain resistance on an inclined surface 57 on the brake arm 47 of the locking lever 35 down and is then held by the back of the brake arm 47 in position. When inserting the bobbin case 3 in the gripper 1 thereby the coil 5 is held and can, even if the bobbin case 3 is tilted slightly downwards, do not fall out of this. Once the hook-shaped end 51 of the locking leg 45 abuts against the sleeve 9, the locking lever 35 is slightly pivoted counterclockwise. Upon further insertion, the hook-shaped end 51 slides along the jacket of the sleeve 9 until the hook-shaped end 51 reaches the recess 13 and can latch in there. Now the bobbin case 3 together with the coil 5 is held in gripper 1 and can no longer fall out of this. Both the locking leg 45 and the brake arm 47 are spaced apart in the latched position to the inner wall of the bore in the coil 5. The latter is thereby held freely rotatable. In this position, the outer surface of the main leg 43 is below the outer contour of the sky 27th

Claims (5)

Verriegelungsvorrichtung für eine Spulenkapsel (5) für die Aufnahme einer Unterfadenspule (7) in einem Greifer (1) für eine Nähmaschine, umfassend ein Verriegelungselement (35) zum Festhalten der Spulenkapsel (5) im Greifer (1) sowie eine auf einem Spulendorn (9) im Greifer (1) aufgeschobene Feder (23) zum Auswerfen der Spulenkapsel (3) mit der Spule (5) aus dem Greifer (1),
dadurch gekennzeichnet, dass
im Himmel (27) der Spulenkapsel (3) in einer dort eingelassenen schlitzförmigen Öffnung (29) ein schwenkbar gelagerter zweiarmiger Verriegelungshebel (35) angeordnet ist, an welchem ein Rastschenkel (45) mit einem hakenförmigen Ende (51) ausgebildet ist, das dazu bestimmt ist, in einem Einstich (13) am Spulendorn (9) einzugreifen, wenn die Spulenkapsel (3) gegen die Kraft der Feder (23) in den Greifer (1) eingeführt ist.Locking device for a bobbin case (5) for receiving a lower thread bobbin (7) in a gripper (1) for a sewing machine, comprising a locking element (35) for holding the bobbin case (5) in the gripper (1) and a spool (9 ) in the gripper (1) pushed spring (23) for ejecting the bobbin case (3) with the coil (5) from the gripper (1),
characterized in that
in the sky (27) of the bobbin case (3) in a slot-shaped opening (29) inserted therein a pivotally mounted two-armed locking lever (35) is arranged, on which a locking leg (45) with a hook-shaped end (51) is formed, which determines is to engage in a groove (13) on the spool (9) when the bobbin case (3) against the force of the spring (23) is inserted into the gripper (1). Verriegelungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Verriegelungshebel (35) in einer Bohrung (41) von einer Welle (33) durchsetzt ist, welche Welle (33) in einer rechtwinkelig zur Öffnung (29) verlaufenden Ausnehmung (31) auf der Aussenseite des Himmels (27) liegt und von einer die Welle (33) umschlingenden Schraubenfeder (37) am Himmel (27) gehalten ist.Locking device according to claim 1, characterized in that the locking lever (35) in a bore (41) of a shaft (33) is penetrated, which shaft (33) in a perpendicular to the opening (29) extending recess (31) on the outside of the sky (27) lies and of a the Shaft (33) wrapping coil spring (37) on the sky (27) is held. Verriegelungsvorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass der Einstich (13) auf dem Spulendorn (7) in einer auf dem Spulendorn (7) aufgesetzten Hülse (9) ausgebildet ist und dass am einen Ende der Hülse (9) ein Flansch (15) zum Abstützen der die Hülse (9) umschlingenden Feder (23) angeformt ist.Locking device according to one of claims 1 or 2, characterized in that the recess (13) on the spool (7) in a on the spool (7) patch sleeve (9) is formed and that at one end of the sleeve (9) Flange (15) for supporting the sleeve (9) wrapped around the spring (23) is integrally formed. Verriegelungsvorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass am Verriegelungshebel (35) weiter ein Bremsschenkel (47) ausgebildet ist, dessen Rücken durch die Schwenkkraft einer auf der Welle (33) aufgesetzten Torsionsfeder (37) an die Bohrungswand einer in der Spulenkapsel (3) eingelegten Spule (5) anliegt und die Spule (5) beim Entnehmen der Spulenkapsel (3) aus dem Greifer (1) und beim Einsetzen in den Greifer (1) reibschlüssig festhält.Locking device according to claim 3, characterized in that on the locking lever (35) further a brake leg (47) is formed, whose back by the pivoting force of a on the shaft (33) mounted torsion spring (37) to the bore wall of a in the bobbin case (3). inserted coil (5) is applied and the coil (5) during removal of the bobbin case (3) from the gripper (1) and when inserting into the gripper (1) holds frictionally. Verriegelungsvorrichtung nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass im Himmel (27) eine Griffmulde (49) eingelassen ist, welche vom Hauptschenkel (43) des Verriegelungshebels (35) durchquert wird und ein Niederdrücken und Schwenken des Verriegelungshebels (35) ermöglicht.Locking device according to one of claims 2 to 4, characterized in that in the sky (27) a recessed grip (49) is inserted, which is traversed by the main leg (43) of the locking lever (35) and a depression and pivoting of the locking lever (35) ,
EP11405359.8A 2010-12-09 2011-11-21 Interlocking device for a spooling capsule Active EP2463430B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH02061/10A CH704196A1 (en) 2010-12-09 2010-12-09 Locking device for a bobbin case.

Publications (2)

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EP2463430A1 true EP2463430A1 (en) 2012-06-13
EP2463430B1 EP2463430B1 (en) 2013-09-11

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ID=45217463

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11405359.8A Active EP2463430B1 (en) 2010-12-09 2011-11-21 Interlocking device for a spooling capsule

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US (1) US8622009B2 (en)
EP (1) EP2463430B1 (en)
CH (1) CH704196A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH704196A1 (en) * 2010-12-09 2012-06-15 Bernina Int Ag Locking device for a bobbin case.
USD953010S1 (en) * 2018-12-04 2022-05-31 Cm Cerliani S.R.L. Bobbin case

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1541736A2 (en) * 2003-12-10 2005-06-15 Fritz Gegauf Ag Bernina-Nähmaschinenfabrik Locking device for lower thread bobbin
EP2138623A1 (en) * 2008-06-24 2009-12-30 Dürkopp Adler AG Looper for a double backstitch sewing machine

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US388323A (en) * 1888-08-21 Jasper yannett
US832414A (en) * 1905-11-16 1906-10-02 Wheeler & Wilson Mfg Co Sewing-machine bobbin-case.
US1538939A (en) * 1923-08-21 1925-05-26 Summit Thread Company Sewing-machine shuttle
DE763456C (en) * 1940-01-16 1953-05-11 Singer Mfg Co Bobbin case for sewing machines
US2813500A (en) * 1951-06-26 1957-11-19 Singer Mfg Co Bobbin-cases for sewing machines
US3323743A (en) * 1965-09-27 1967-06-06 Walter D Landgraf Ribbon spool
US3381643A (en) * 1966-10-10 1968-05-07 Singer Co Bobbin-supporting assemblies for sewing machines
JPS6422284A (en) * 1987-07-18 1989-01-25 Hirose Mfg Co Ltd Bobbin case engaging structure
TW370120U (en) * 1997-01-29 1999-09-11 Hirose Mfg Co Ltd Sewing machine shuttle
CH700442A1 (en) * 2009-02-17 2010-08-31 Bernina Int Ag Locking device for a bobbin case for a lower thread bobbin.
CH704196A1 (en) * 2010-12-09 2012-06-15 Bernina Int Ag Locking device for a bobbin case.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1541736A2 (en) * 2003-12-10 2005-06-15 Fritz Gegauf Ag Bernina-Nähmaschinenfabrik Locking device for lower thread bobbin
EP1541736B1 (en) 2003-12-10 2008-05-21 BERNINA International AG Locking device for lower thread bobbin
EP2138623A1 (en) * 2008-06-24 2009-12-30 Dürkopp Adler AG Looper for a double backstitch sewing machine

Also Published As

Publication number Publication date
EP2463430B1 (en) 2013-09-11
US20120145059A1 (en) 2012-06-14
CH704196A1 (en) 2012-06-15
US8622009B2 (en) 2014-01-07

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