WO1993018220A1 - Dispositif enfileur - Google Patents
Dispositif enfileur Download PDFInfo
- Publication number
- WO1993018220A1 WO1993018220A1 PCT/CH1993/000058 CH9300058W WO9318220A1 WO 1993018220 A1 WO1993018220 A1 WO 1993018220A1 CH 9300058 W CH9300058 W CH 9300058W WO 9318220 A1 WO9318220 A1 WO 9318220A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sleeve
- slot
- fingers
- needle
- blade
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B87/00—Needle- or looper- threading devices
Definitions
- the present invention relates to a device threading a sewing thread through the eye of a needle, whether it is a sewing or embroidery machine needle, that is to say fixed at the end of an axially sliding bar, or of a needle for manual sewing.
- the present invention relates to a device belonging both to the second and to the third genus cited and whose essential characteristics are the subject of claim 1.
- Figure 1 is a plan view.
- Figure 2 is a view along II-II of Figure 1.
- Figure 3 is a side elevational view of the device of Figure 1, with partial section on III-III of this figure.
- Figures 4 and 5 are sections on IV-IV and V-V, respectively, of Figure 3.
- Figures 6 to 12 show the mode of implementation of the device shown in Figures 1 to 5.
- Figure 6 is a perspective view of the device according to the invention in the position occupied at the start of the threading process of a sewing machine needle.
- Figures 7 and 8 show, in partial elevation and in section along VIII-VIII of Figure 7, respectively, the position occupied by ' certain elements of the device at the start of the threading process.
- FIG. 9 is a perspective view showing the device according to the invention in the position of maximum insertion of a thread through the eye of a needle of a sewing machine.
- FIGS. 10 and 11 show on a larger scale, in partial elevation and in section along XI-XI, respectively, the device according to the invention in its visible position in FIG. 9.
- FIG. 12 shows, in a partial horizontal section, the device according to the invention at the end of the threading process.
- Figure 13 is an elevation, in partial section, of the device according to the invention in its use for enffi ⁇ lage of a needle for manual sewing.
- the device shown in the drawing (fig. 1) comprises a cylindrical body 1, the left part of which has four fingers 2a, 2b, 2c and 2d and the right part carries a sliding sleeve 3 subjected to the action of a return spring 4 (fig. 3) disposed inside between the end face of this straight part of the body 1 and a flange 3a of the sleeve 3.
- the body 1 is formed by assembling two shells 1a and 1b (fig. 1, 3 to 5) made integral by any suitable means, for example by gluing or by ultrasonic welding, the opposite face of which is another has a groove of rectangular section 5a, respectively 5b, extending from the right end, in the drawing, of the body 1 as far as the area of the fingers 2a to 2d previously cited (FIGS. 3 and 5).
- the length of the body 1 could be of the order of 20 mm and its diameter of 6 mm, the sleeve 3 having a length of 25 mm for an outside diameter of 8 mm.
- the grooves 5a and 5b their dimensions will, for example, be 17 mm for the length, of the order of 4 mm for their width and of the order of 2/10 of mm for their depth.
- the grooves 5a and 5b of these shells form a longitu ⁇ dinal slot 5, with a length of 4/10 mm for example, inside which is slidably mounted a blade 6, for example with a thickness of 2 to 3/10 mm.
- the blade 6 has a uniform width on its middle part 6a, slightly lower than the height of the groove 5 with the side edges of which it is in “sliding" contact with its part 6b .
- This shoe also forms an axial locking member of the blade 6 limiting the movement in this direction D 'by encountering a shoulder 5c (FIG. 3) of the body 1.
- a shoulder is, of course, formed by the junction of the co ⁇ keels la and 1b of the body, which each have one half.
- the blade 6 pre ⁇ feels, moreover, a part 6c of length less than that of the part 6a and corresponding substantially to the diameter of the opening of the collar 3a of the sleeve 3 that it crosses freely. Therefore and as will be seen later, the sleeve 3 and the blade 6, therefore also the entire body 1 with which it is associated, can be moved angularly one relative to the other by reciprocal pivoting of the part 6c of the blade and of the annular wall delimiting said opening of the collar 3a.
- the blade 6 is cut by two notches 6d intended for positioning and maintaining a clip 60 limiting the movement of the sleeve 3 in direction D 'and, therefore, its total disengagement from the body 1 on which it slides.
- the blade 6 bears, by the lower end of its middle part 6a (FIG. 3), on the flange 3a of the sleeve 3.
- the blade 6 is in the form of a lancet L, the free end of which is cut by a triangular notch 6e, the usefulness of which will appear subsequently.
- the lancet L may have, for example, a length of ten millimeters for a width of the order of 3 to 4/10 of mm and a thickness of 1/10 of mm.
- the four fingers 2a to 2d that the body 1 of the device according to the invention comprises have a tapered shape, in this case a pseudo-pyramidal shape. They could, as a variant, be very well pyramidal, tronco-pyramidal, pseudo-conical, conical, frustoconical, polyhedral with triangular section, etc.
- these fingers delimit, two by two, a first groove R 1 ( Figures 1 to 3) of triangular section and a second groove R 2 , also of triangular section, oriented perpendicular to the groove R ⁇ (see Figure 3).
- the longitudinal plane of symmetry of this groove Ri coincides with the longitudinal plane of symmetry of the slot 5 and of the blade 6, and the longitudinal plane of symmetry of the groove R 2 contains the longitudinal axis of symmetry of these same slot and blade.
- the depth and the opening of the groove R 1 are such that a needle A can easily take place between the pairs of fingers 2a, 2b, respectively 2c, 2d delimited by intersection of the grooves R 1 and R 2 ( Figures 1 , 7 and 8).
- This slot 7, oriented perpendicular to the longitudinal plane of the slot 5, is particularly constricted in its parts 7a and 7b ( Figure 4) located near this slot 5, on either side of it, and goes then widening as one moves away from the slot 5 and as one approaches the lateral surface of the body 1 (lateral openings 7c).
- the minimum width of the slot 7 may be of the order of 1 to 2/10 mm, or of the same order of size as the diameter of the threads usually used in sewing.
- the device is then grasped by taking hold of the sleeve 3, for example by clamping between the thumb and the index finger, and applies it against the portion of the needle A situated above the eye C thereof. .
- the device is led against the needle by enveloping it by the pairs of fingers 2a, 2d - 2b, 2c of the body 1 so that the groove R 1 and the eye C occupy a relative position such that their respective planes of symmetry practically coincide.
- the thread will, on the contrary, follow the lancet (by forming a start of loop "marrying" the two lateral faces of the lancet) only in the central part of the slot 7, and its strands f1 and f2 will slide in this slot, in direction
- the device is moved in the direction V (FIG. 6), that is to say in the direction of the eye C of the needle A, first on the cylindrical part of the 'needle, then in the groove R ( Figures 7 and 10) that includes any sewing machine needle and, at the end of this groove, opposite the eye C of the needle, the lancet L then penetrating into the eye under the action of the spring 4, driving the wire F.
- the groove R therefore ensures the guidance of the lancet L towards the eye C.
- the sleeve 3 will push the wire back, first of all out of the slot 7, so that it will remove it from the pinching action exerted by the portions 7a and 7b thereof, then the space of the portion of the groove R 2 between the slot 7 and the needle A against which the sleeve 3 will abut at the end of the race ( Figures 9, 10 and 11), this as and as the lancet L will continue its movement through the eye C of the needle, carrying with it an ever greater length of thread F.
- the sleeve 3 constitutes you a member for ejecting the thread from of slot 7.
- T thread in particular the friction which they could exert on the thread, in particular on thread of relatively imposing section, decreases as the sleeve 3 becomes closer to the needle: therefore, the "release" of the wire from the possible grip of the fingers of the body 1 on the wire is greatly facilitated.
- the portion of thread having passed through the eye of the needle no longer adheres to the sides of the lancet L but begins by forming a sort of narrow loop developing between its portion in direct contact with the edge of the 6th notch of the lancet and the eye of the needle.
- the two strands f1 and f2 of the fi1 F are slightly wedged between one of the lateral edges of the eye and the lancet L, for one of the strands f1 or f2, and between the other lateral edge of the eye of the needle and this same lancet, for the second strand of the wire F.
- FIG. 12 shows precisely the shape of the thread loop threaded immediately before the lancet L leaves the eye C of the needle A.
- the size of this loop must, of course, be large enough for a user, even disabled, can easily grasp the fingers to pass through the eye, by pulling on the loop, that of the strands f1 or f2 of the wire F corresponding to the free end of the wire, thus completing the operation d 'proper threading.
- this dimension is directly linked to the length of the lancet part L capable of crossing the eye of the needle in the position of the elements of the device as illustrated in FIGS. 10 and 11.
- the lateral surface of the body 1 of the device is provided with two marks 8a, 8b of rhombic shape and of a color contrasting with that of this body. These marks are arranged on diametrically opposite portions of the body 1, along the junction edges of the shells 1a and 1b thereof, set back from the fingers 2a and 2b, for the mark 8a, 2c and 2d, for the item 8b.
- these fingers will slide on the lateral surface of the needle, as soon as they meet this needle and as the device is pushed. towards the needle, and will play the role of cams driving the body 1 in angular movement relative to the sleeve 3, as long as the needle is not at the bottom of the groove R 1 , between the fingers 2a and 2b , on the one hand, 2c and 2d, on the other hand ( Figure 6).
- the use of the invention is not limited to threading fixed needles at the end of a needle bar of a sewing machine or even an embroidery machine.
- Such a device can, in fact, be advantageously used for threading needles for manual sewing, in particular needles whose eye is not located near the tip of the needle, as in the case il ⁇ glossy and described above, but opposite this point.
- Fig ⁇ ure 13 shows a possible embodiment of such a support constituted by a revolution base 9, having in its center a cylindrical housing 9a in which can be introduced sleeve 3 of the threading device described and communicated. ant, by its bottom, with a passage 9b in which the end 6c of the blade 6 and the clips 60 take place.
- the diameter of the housing 9a will be chosen slightly greater than the external diameter of the sleeve 3 of the device so as to pou ⁇ see easily separate the device enfi their base, respectively reassemble on its base, in either case by vertical sliding.
- a vertical thrust is then exerted on the body 1 of the device and it is allowed to sink into the sleeve 3 until the needle A comes into contact with the lancet L following the "stripping" of the latter. If necessary, the axial position of the needle can be adjusted so as to place the eye in line with the free end of the lancet L.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/146,017 US5469996A (en) | 1992-03-09 | 1993-03-08 | Threading device |
JP5515216A JPH06507818A (ja) | 1992-03-09 | 1993-03-08 | 糸通し装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH743/92-1 | 1992-03-09 | ||
CH74392 | 1992-03-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993018220A1 true WO1993018220A1 (fr) | 1993-09-16 |
Family
ID=4194174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH1993/000058 WO1993018220A1 (fr) | 1992-03-09 | 1993-03-08 | Dispositif enfileur |
Country Status (4)
Country | Link |
---|---|
US (1) | US5469996A (fr) |
EP (1) | EP0583448A1 (fr) |
JP (1) | JPH06507818A (fr) |
WO (1) | WO1993018220A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3132308A1 (fr) | 2022-02-02 | 2023-08-04 | Materiel Pour L'arboriculture Fruitiere | Dispositif d’aide à l’enfilage d’une aiguille à chas |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BRPI0414032A (pt) * | 2003-08-29 | 2006-10-24 | Airbus Gmbh | aparelho e método para a fabricação automática de uma fita com fios para visualização de fluxos de ar em superfìcies aerodinámicas |
DE102006018133A1 (de) * | 2006-04-19 | 2007-10-25 | Airbus Deutschland Gmbh | Vorrichtung und Verfahren zur Herstellung einer Testklebestreifenrolle zur Sichtbarmachung von Luftströmen |
US9265593B2 (en) * | 2010-09-21 | 2016-02-23 | Oralwise, Inc | Flossing system |
JP6570943B2 (ja) * | 2015-09-18 | 2019-09-04 | 蛇の目ミシン工業株式会社 | 糸挿入器 |
CN108589086A (zh) * | 2018-07-17 | 2018-09-28 | 吴江市震宇缝制设备有限公司 | 一种缝纫机用换线装置 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE631952C (de) * | 1935-07-16 | 1936-06-30 | Karl Scrinzi | Einfaedelvorrichtung fuer Naehmaschinennadeln |
FR925147A (fr) * | 1945-10-26 | 1947-08-26 | Dispositif pour enfiler automatiquement les aiguilles | |
US2483595A (en) * | 1944-06-09 | 1949-10-04 | Charles U Olson | Sewing machine needle threader |
US2667294A (en) * | 1950-09-28 | 1954-01-26 | Hoeckele Karl | Needle threader |
FR1104687A (fr) * | 1953-02-18 | 1955-11-23 | Dispositif d'enfilage pour aiguilles de machines à coudre | |
FR70341E (fr) * | 1956-06-28 | 1959-04-06 | Enfile-aiguille | |
FR1255942A (fr) * | 1959-05-29 | 1961-03-17 | Dispositif pour l'introduction du fil dans des aiguilles fixes, en particulier des aiguilles de machines à coudre |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US882204A (en) * | 1907-11-25 | 1908-03-17 | Max E Lassen | Needle-threader. |
US912915A (en) * | 1908-01-20 | 1909-02-16 | Jens K Stockland | Needle-threader. |
CH270031A (de) * | 1949-08-22 | 1950-08-15 | Rueegg Arnold | Nadeleinfädler. |
US2655886A (en) * | 1950-02-25 | 1953-10-20 | Cons Sewing Machine & Supply C | Machine attached needle threader |
US4557408A (en) * | 1984-07-25 | 1985-12-10 | Arnoldus Biemans | Needle threading devices |
-
1993
- 1993-03-08 EP EP93903786A patent/EP0583448A1/fr not_active Ceased
- 1993-03-08 JP JP5515216A patent/JPH06507818A/ja active Pending
- 1993-03-08 WO PCT/CH1993/000058 patent/WO1993018220A1/fr not_active Application Discontinuation
- 1993-03-08 US US08/146,017 patent/US5469996A/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE631952C (de) * | 1935-07-16 | 1936-06-30 | Karl Scrinzi | Einfaedelvorrichtung fuer Naehmaschinennadeln |
US2483595A (en) * | 1944-06-09 | 1949-10-04 | Charles U Olson | Sewing machine needle threader |
FR925147A (fr) * | 1945-10-26 | 1947-08-26 | Dispositif pour enfiler automatiquement les aiguilles | |
US2667294A (en) * | 1950-09-28 | 1954-01-26 | Hoeckele Karl | Needle threader |
FR1104687A (fr) * | 1953-02-18 | 1955-11-23 | Dispositif d'enfilage pour aiguilles de machines à coudre | |
FR70341E (fr) * | 1956-06-28 | 1959-04-06 | Enfile-aiguille | |
FR1255942A (fr) * | 1959-05-29 | 1961-03-17 | Dispositif pour l'introduction du fil dans des aiguilles fixes, en particulier des aiguilles de machines à coudre |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3132308A1 (fr) | 2022-02-02 | 2023-08-04 | Materiel Pour L'arboriculture Fruitiere | Dispositif d’aide à l’enfilage d’une aiguille à chas |
WO2023148664A1 (fr) | 2022-02-02 | 2023-08-10 | Materiel Pour L'arboriculture Fruitiere | Dispositif d'aide à l'enfilage d'une aiguille a chas |
Also Published As
Publication number | Publication date |
---|---|
EP0583448A1 (fr) | 1994-02-23 |
JPH06507818A (ja) | 1994-09-08 |
US5469996A (en) | 1995-11-28 |
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