EP0338033B1 - Device for cutting a textile yarn - Google Patents

Device for cutting a textile yarn Download PDF

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Publication number
EP0338033B1
EP0338033B1 EP88907599A EP88907599A EP0338033B1 EP 0338033 B1 EP0338033 B1 EP 0338033B1 EP 88907599 A EP88907599 A EP 88907599A EP 88907599 A EP88907599 A EP 88907599A EP 0338033 B1 EP0338033 B1 EP 0338033B1
Authority
EP
European Patent Office
Prior art keywords
bar
head
cutting
cutting device
space
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.)
Expired - Lifetime
Application number
EP88907599A
Other languages
German (de)
French (fr)
Other versions
EP0338033A1 (en
Inventor
Antonio Jimenez
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mefina SA
Original Assignee
Mefina SA
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 Mefina SA filed Critical Mefina SA
Publication of EP0338033A1 publication Critical patent/EP0338033A1/en
Application granted granted Critical
Publication of EP0338033B1 publication Critical patent/EP0338033B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B65/00—Devices for severing the needle or lower thread
    • D05B65/003—Devices for severing the needle or lower thread the thread being engaged manually against the cutting edge of a fixedly arranged knife
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/70—Other constructional features of yarn-winding machines
    • B65H54/71—Arrangements for severing filamentary materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/20—Severing by manually forcing against fixed edge
    • Y10T225/287—With brake or clamp
    • Y10T225/289—Thread cutter and clamp attachment for sewing machine presser foot
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/20—Severing by manually forcing against fixed edge
    • Y10T225/297—With means to facilitate lead-end grasping

Definitions

  • Devices are already known for cutting a textile thread and retaining at least one of its strands by pinching between two parts urged against each other by a spring, one of these parts being constituted by a head of a rod , the other part surrounding this rod, a space being formed between this other part and the head of the rod, a cutting member being housed in said space.
  • a device of this kind is described for example in Swiss patent N ° 635,380.
  • the invention aims to reduce the manufacturing cost of such a wire cutter device, while making its use easier.
  • the thread-cutting device of the aforementioned type is characterized in that the cutting member is constituted by a part mounted on the part of the rod which passes through said space, this part having at least one branch extending radially in said space, this branch having a slot extending to its end, the two parts of the branch located on each side of the slot being oriented so as to move away from either side of a perpendicular radial plane to the axis thereof, in order to provide a V-shaped groove therebetween.
  • the device for cutting a textile thread and retaining at least one of its strands by pinching between two parts comprises a rod 1, having a head 2 and a threaded portion 3.
  • Another part 4 in general form sleeve can slide on the rod 1 and is subjected to the action of a spring 5 bearing against a stop ring 6 to push this part 4 until it comes to abut against the head 2 of the rod 1.
  • Part 4 has a circular recess 7 facing a circular recess 8 of the head 2, these two recesses facing each other to form a space in which is housed a cutting member 9, mounted on the part of the rod 1 which crosses this space.
  • the cutting member 9 is constituted by a stamped steel plate to present three branches 10 and a central hole 13 whose section is non-circular, thanks to a flat 14.
  • Each of the branches of the cutting member 9 has a slot 15 so as to divide the branch into two parts 11 and 12 which are oriented so as to move away from either side of a radial plane perpendicular to the axis 1, moving away from the axis of this rod.
  • the parts 11 and 12 form between them a V-shaped groove 16, these grooves constituting the cutting parts of the member 9.
  • the head 2 and the sleeve 4 have conical portions 17 and 18 respectively which face each other to form a groove for guiding the textile thread to be cut.
  • the rod 1 has a flat 19 intended to cooperate with the flat 14 of the cutting member 9 so as to prevent the rotation of this member 9 on the rod 1.
  • the user presses this thread into the groove formed by the conical portions 17 and 18, which slightly separates the sleeve 4 from the head 2 by a slight movement against the action of the spring 5.
  • the thread is housed in the space 7, 8 and engages in at least one V of the cutting member 9.
  • the V-shaped grooves 16 of the member 9 are located substantially in the contact plane of the head 2 with the sleeve 4.
  • the wire being clamped between the sleeve 4 and the head 2, it suffices to exert a pull on a strand of the wire to force it towards the bottom of the groove 16 and easily obtain his cut. After this operation, the other strand of the wire remains pinched between the head 2 and the sleeve 4 and, if necessary, can be released easily by a slight pull.
  • the device described can be fixed by screwing, or in any other way, on any textile machine where one needs to be able to easily cut a thread.
  • This device can advantageously be combined with the screw fixing the presser foot on a sewing machine.
  • the cutting organ could have only one or two V-shaped branches, but tests have shown that a three-branched organ gave better results.
  • the sleeve-shaped part 4 could be fixed to the frame of a machine, the rod 1 then being devoid of the threaded portion 3 and being able to move against the action of the spring 5.
  • the head 2 of the rod 1 could be made integral with the latter by any known means, instead of having come in one piece with this rod.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Harvester Elements (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

The yarn cutter comprises a rod (1) with a head (2) and a substantially cylindrical portion (4) bearing against the head (2) by means of a spring (5). Within the space (7, 8) is housed a cutting member (9) presenting V-shaped notches and arranged so that a yarn engaged between the portion (4) and the head (2) is engaged into one of the notches in order to be cut.

Description

On connaît déjà des dispositifs pour couper un fil textile et retenir au moins un de ses brins par pincement entre deux parties sollicitées l'une contre l'autre par un ressort, l'une de ces parties étant constituée par une tête d'une tige, l'autre partie entourant cette tige, un espace étant ménagé entre cette autre partie et la tête de la tige, un organe coupant étant logé dans ledit espace. Un dispositif de ce genre est décrit par exemple dans le brevet suisse N° 635.380.Devices are already known for cutting a textile thread and retaining at least one of its strands by pinching between two parts urged against each other by a spring, one of these parts being constituted by a head of a rod , the other part surrounding this rod, a space being formed between this other part and the head of the rod, a cutting member being housed in said space. A device of this kind is described for example in Swiss patent N ° 635,380.

L'invention a pour but de diminuer le coût de fabrication d'un tel dispositif coupe-fil, tout en rendant son emploi plus aisé.The invention aims to reduce the manufacturing cost of such a wire cutter device, while making its use easier.

A cet effet, le dispositif coupe-fil du genre précité est caractérisé en ce que l'organe coupant est constitué par une pièce montée sur la partie de la tige qui traverse ledit espace, cette pièce présentant au moins une branche s'étendant radialement dans ledit espace, cette branche présentant une fente s'étendant jusqu'à son extrémité, les deux parties de la branche situées de chaque côté de la fente étant orientées de façon à s'écarter de part et d'autre d'un plan radial perpendiculaire à l'axe de celle-ci, afin de ménager entre elles une gorge en forme de V.To this end, the thread-cutting device of the aforementioned type is characterized in that the cutting member is constituted by a part mounted on the part of the rod which passes through said space, this part having at least one branch extending radially in said space, this branch having a slot extending to its end, the two parts of the branch located on each side of the slot being oriented so as to move away from either side of a perpendicular radial plane to the axis thereof, in order to provide a V-shaped groove therebetween.

Le dessin annexé représente, schématiquement et à titre d'exemple, une forme d'exécution de l'objet de l'invention.

  • La figure 1 est une coupe axiale de cette forme d'exécution.
  • Les figures 2 et 3 représentent de face et respectivement de profil l'organe coupant contenu dans le coupe-fil selon la figure 1.
The attached drawing shows, schematically and by way of example, an embodiment of the subject of the invention.
  • Figure 1 is an axial section of this embodiment.
  • FIGS. 2 and 3 represent from the front and respectively in profile the cutting member contained in the wire cutter according to FIG. 1.

En référence à la figure 1, le dispositif pour couper un fil textile et retenir au moins un de ses brins par pincement entre deux parties, comprend une tige 1, présentant une tête 2 et une portion filetée 3. Une autre partie 4 en forme générale de manchon peut coulisser sur la tige 1 et est soumise à l'action d'un ressort 5 prenant appui contre un anneau d'arrêt 6 pour pousser cette partie 4 jusqu'à ce qu'elle vienne buter contre la tête 2 de la tige 1.Referring to Figure 1, the device for cutting a textile thread and retaining at least one of its strands by pinching between two parts, comprises a rod 1, having a head 2 and a threaded portion 3. Another part 4 in general form sleeve can slide on the rod 1 and is subjected to the action of a spring 5 bearing against a stop ring 6 to push this part 4 until it comes to abut against the head 2 of the rod 1.

La partie 4 présente une creusure circulaire 7 faisant face à une creusure circulaire 8 de la tête 2, ces deux creusures venant en regard l'une de l'autre pour former un espace dans lequel est logé un organe coupant 9, monté sur la partie de la tige 1 qui traverse cet espace.Part 4 has a circular recess 7 facing a circular recess 8 of the head 2, these two recesses facing each other to form a space in which is housed a cutting member 9, mounted on the part of the rod 1 which crosses this space.

Comme le montre la figure 2, l'organe coupant 9 est constitué par une plaquette d'acier étampée pour présenter trois branches 10 et un trou central 13 dont la section est non circulaire, grâce à un méplat 14.As shown in FIG. 2, the cutting member 9 is constituted by a stamped steel plate to present three branches 10 and a central hole 13 whose section is non-circular, thanks to a flat 14.

Chacune des branches de l'organe coupant 9 présente une fente 15 de façon à partager la branche en deux parties 11 et 12 qui sont orienteés de façon à s'écarter de part et d'autre d'un plan radial perpendiculaire à l'axe 1, en s'éloignant de l'axe de cette tige. Comme on le voit bien à la figure 3, les parties 11 et 12 forment entre elles une gorge 16 en forme de V, ces gorges constituant les parties coupantes de l'organe 9.Each of the branches of the cutting member 9 has a slot 15 so as to divide the branch into two parts 11 and 12 which are oriented so as to move away from either side of a radial plane perpendicular to the axis 1, moving away from the axis of this rod. As can be clearly seen in FIG. 3, the parts 11 and 12 form between them a V-shaped groove 16, these grooves constituting the cutting parts of the member 9.

Comme le montre la figure 1, la tête 2 et le manchon 4 présentent des portions coniques 17 et respectivement 18 qui se font face pour former une gorge de guidage du fil textile à couper. De plus, la tige 1 présente un méplat 19 destiné à coopérer avec le méplat 14 de l'organe coupant 9 de façon à empêcher la rotation de cet organe 9 sur la tige 1.As shown in FIG. 1, the head 2 and the sleeve 4 have conical portions 17 and 18 respectively which face each other to form a groove for guiding the textile thread to be cut. In addition, the rod 1 has a flat 19 intended to cooperate with the flat 14 of the cutting member 9 so as to prevent the rotation of this member 9 on the rod 1.

Pour couper un fil textile, l'usager appuie ce fil dans la gorge formée par les portion coniques 17 et 18, ce qui écarte légèrement le manchon 4 de la tête 2 par un léger déplacement contre l'action du ressort 5. Le fil vient se loger dans l'espace 7, 8 et s'engage dans au moins un V de l'organe coupant 9. Il y a lieu de remarquer que les gorges 16 en forme de V de l'organe 9 sont situées sensiblement dans le plan de contact de la tête 2 avec le manchon 4. Le fil étant serré entre le manchon 4 et la tête 2, il suffit d'exercer une traction sur un brin du fil pour le forcer vers le fond de la gorge 16 et obtenir facilement sa coupure. Après cette opération, l'autre brin du fil reste pincé entre la tête 2 et le manchon 4 et, si nécessaire, peut être dégagé facilement par une légère traction.To cut a textile thread, the user presses this thread into the groove formed by the conical portions 17 and 18, which slightly separates the sleeve 4 from the head 2 by a slight movement against the action of the spring 5. The thread is housed in the space 7, 8 and engages in at least one V of the cutting member 9. It should be noted that the V-shaped grooves 16 of the member 9 are located substantially in the contact plane of the head 2 with the sleeve 4. The wire being clamped between the sleeve 4 and the head 2, it suffices to exert a pull on a strand of the wire to force it towards the bottom of the groove 16 and easily obtain his cut. After this operation, the other strand of the wire remains pinched between the head 2 and the sleeve 4 and, if necessary, can be released easily by a slight pull.

Le dispositif décrit peut être fixé par vissage, ou de toute autre façon, sur toute machine textile où l'on a besoin de pouvoir couper facilement un fil. Ce dispositif peut avantageusement être combiné avec la vis de fixation du pied de biche sur une machine à coudre.The device described can be fixed by screwing, or in any other way, on any textile machine where one needs to be able to easily cut a thread. This device can advantageously be combined with the screw fixing the presser foot on a sewing machine.

Il est bien entendu que l'on peut prévoir de nombreuses variantes d'exécution du dispositif décrit. En principe, l'organe coupant pourrait ne présenter qu'une ou deux branches en forme de V, mais les essais ont démontré qu'un organe à trois branches donnait de meilleurs résultats. Il va également de soi que la partie 4 en forme de manchon pourrait être fixée au bâti d'une machine, la tige 1 étant alors dépourvue de la portion filetée 3 et pouvant se déplacée contre l'action du ressort 5. La tête 2 de la tige 1 pourrait être rendue solidaire de cette dernière par tous moyens connus, au lieu d'être venue d'une pièce avec cette tige.It is understood that there can be many alternative embodiments of the device described. In principle, the cutting organ could have only one or two V-shaped branches, but tests have shown that a three-branched organ gave better results. It also goes without saying that the sleeve-shaped part 4 could be fixed to the frame of a machine, the rod 1 then being devoid of the threaded portion 3 and being able to move against the action of the spring 5. The head 2 of the rod 1 could be made integral with the latter by any known means, instead of having come in one piece with this rod.

Claims (4)

1. Device for cutting a textile yarn and holding at least one of its ends by gripping between two parts (2 and 4) forced against each other by a spring (5), one of these parts consisting of the head (2) of a bar (1), the other part (4), being in the general form of a sleeve surrounding this bar and bearing against the head (2) of the bar (1), an annular space (7) being provided between this other part (4) and the head (2) of the bar (1), a cutting device (9) being housed in the said space (7), characterised in that the cutting device (9) consists of a component mounted on the part of the bar (1) which passes through the said space (7), this component having at least one arm (10) extending radially in the said space (7), this arm (10) having a slot (15) extending to its outer end, the two parts (11, 12) of the arm (10) situated on each side of the slot (15) being oriented so as to spread apart on each side of a radial plane at right angles to the axis of the bar (1), in order to produce between them a V-shaped notch (16).
2. Device according to claim 1, characterised in that the cutting device (9) has at least three similar arms (10).
3. Device according to claim 2, characterised in that the bar (1) has a non-circular cross section, the cutting device (9) having a hole (13) with a corresponding cross section to engage on this bar (1) and prevent the cutting device (9) from being able to rotate on the bar (1).
4. Device according to claim 2 or 3, characterised in that the cutting device (9) consists of a steel disc stamped to form the V-shaped notches (16) in the arms (10).
EP88907599A 1987-10-07 1988-09-13 Device for cutting a textile yarn Expired - Lifetime EP0338033B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3912/87 1987-10-07
CH3912/87A CH672328A5 (en) 1987-10-07 1987-10-07

Publications (2)

Publication Number Publication Date
EP0338033A1 EP0338033A1 (en) 1989-10-25
EP0338033B1 true EP0338033B1 (en) 1992-03-18

Family

ID=4266174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88907599A Expired - Lifetime EP0338033B1 (en) 1987-10-07 1988-09-13 Device for cutting a textile yarn

Country Status (10)

Country Link
US (1) US4984727A (en)
EP (1) EP0338033B1 (en)
JP (1) JPH02501475A (en)
AU (1) AU600388B2 (en)
CA (1) CA1322129C (en)
CH (1) CH672328A5 (en)
DE (1) DE3869393D1 (en)
ES (1) ES2011133A6 (en)
WO (1) WO1989003447A1 (en)
ZA (1) ZA887539B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103741289B (en) * 2013-12-05 2015-11-04 苏州瑞日纺织科技有限公司 Doubling winder broken yarn device
US11097440B2 (en) 2015-11-05 2021-08-24 United States Of America As Represented By The Administrator Of Nasa Cutting mechanism for carbon nanotube yarns, tapes, sheets and polymer composites thereof
US10500836B2 (en) 2015-11-06 2019-12-10 United States Of America As Represented By The Administrator Of Nasa Adhesion test station in an extrusion apparatus and methods for using the same
US10513080B2 (en) 2015-11-06 2019-12-24 United States Of America As Represented By The Administrator Of Nasa Method for the free form fabrication of articles out of electrically conductive filaments using localized heating
US10894353B2 (en) 2015-11-09 2021-01-19 United States Of America As Represented By The Administrator Of Nasa Devices and methods for additive manufacturing using flexible filaments

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US268012A (en) * 1882-11-28 Thread cutter and holder for sewing-machines
US2302965A (en) * 1941-08-06 1942-11-24 Max G Biberthaler Thread cutter and holder
US2558039A (en) * 1949-07-09 1951-06-26 Thomas E Carroll Thread holder and cutter
US2664194A (en) * 1950-07-24 1953-12-29 Ewing L Sharp Container and spool for leader lines and the like
US3106902A (en) * 1961-11-01 1963-10-15 Anestis C Foltis Thread cutters or snippers
GB2071713B (en) * 1980-03-17 1983-08-24 Mefina Sa Thread cutting device with thread retention
CH635380A5 (en) * 1980-03-17 1983-03-31 Mefina Sa Thread severing device with thread retention
DE3262465D1 (en) * 1982-01-19 1985-03-28 Gegauf Fritz Ag Sewing machine thread nipping and cutting device
AU6840887A (en) * 1987-01-02 1988-07-27 Motorola, Inc. Paging system with assignable battery saver duty cycle

Also Published As

Publication number Publication date
AU2318788A (en) 1989-05-02
AU600388B2 (en) 1990-08-09
WO1989003447A1 (en) 1989-04-20
EP0338033A1 (en) 1989-10-25
JPH02501475A (en) 1990-05-24
DE3869393D1 (en) 1992-04-23
CH672328A5 (en) 1989-11-15
ZA887539B (en) 1989-06-28
US4984727A (en) 1991-01-15
ES2011133A6 (en) 1989-12-16
CA1322129C (en) 1993-09-14

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