EP0448666B1 - Ensemble pour monter amoviblement un outil sur un organe menant - Google Patents

Ensemble pour monter amoviblement un outil sur un organe menant Download PDF

Info

Publication number
EP0448666B1
EP0448666B1 EP90914500A EP90914500A EP0448666B1 EP 0448666 B1 EP0448666 B1 EP 0448666B1 EP 90914500 A EP90914500 A EP 90914500A EP 90914500 A EP90914500 A EP 90914500A EP 0448666 B1 EP0448666 B1 EP 0448666B1
Authority
EP
European Patent Office
Prior art keywords
tool holder
plate
recess
mounting head
assembly according
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
EP90914500A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0448666A1 (fr
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
Priority claimed from CH3742/89A external-priority patent/CH681215A5/fr
Priority claimed from CH374389A external-priority patent/CH681236A5/fr
Application filed by Mefina SA filed Critical Mefina SA
Publication of EP0448666A1 publication Critical patent/EP0448666A1/fr
Application granted granted Critical
Publication of EP0448666B1 publication Critical patent/EP0448666B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B29/00—Pressers; Presser feet
    • D05B29/12—Presser-foot attachment
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B55/00—Needle holders; Needle bars
    • D05B55/02—Devices for fastening needles to needle bars
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2203/00—Selection of machines, accessories or parts of the same kind
    • 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
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type

Definitions

  • This difficulty is due in particular to awkward handling due to the small size of such objects and, very often, to their generally very pointed shape, therefore to the potential risk of unpleasant or even dangerous injuries if these objects are rusty, which users may incur.
  • the present invention relates more particularly to an assembly for removably mounting a tool on a driving member of the type described in this latter document, that is to say an assembly comprising a tool holder, a fixing head of the tool holder intended for be associated with said member and comprising at least one seat for a corresponding part of this tool holder, a device for holding the tool holder in contact with the seat by said part and means fixing, unequivocally, the relative position of the head fixing and the tool holder when the latter is subject to the holding device, assembly in which said unequivocal positioning means comprise at least one stop member preventing any movement of the tool holder on the seat at least in a determined direction , stop members preventing any movement of this tool holder on said seat according to any one of the trajectories transverse to said determined direction , and at least one thrust member acting on the tool holder in the direction of maintaining it in permanent contact with said stop member, that is to say in said unequivocal position relative to the fixing head.
  • said unequivocal positioning means comprise at
  • the assembly according to the invention lends itself particularly well to a miniaturized execution of the fixing head, and especially of the tool holder, which is hardly the case with the device which is the subject of US patent 1,899,303.
  • a tool holder may have dimensions of comparable size to that of the tool, in particular a needle sew, therefore very weak, while being sufficient to allow easy gripping by the fingers of the user.
  • the assembly shown in the drawings is intended to ensure the removable fixing of a elongated piece, for example a sewing needle, of which only the upper section 1 is visible in the drawing, at the lower end of a needle bar 2 of sewing or embroidery machine, partially illustrated.
  • a elongated piece for example a sewing needle, of which only the upper section 1 is visible in the drawing, at the lower end of a needle bar 2 of sewing or embroidery machine, partially illustrated.
  • the assembly shown comprises a tool holder and a fixing head indicated generically by the references 3 and 4, respectively ( Figures 1 and 2).
  • the tool holder 3 is constituted here by a generally elongated plate, partially rectangular, in synthetic material for example, the front face of which, in the drawing, has, on the one hand, a boss 3a, arranged in a slightly off-centered position on the right relative to the longitudinal axis of symmetry of the plate ( Figure 1) and, on the other hand, two rectangular notches 3b and 3c formed along the left and right edge, respectively, of the plate. The usefulness of the notches 3b and 3c will appear later.
  • the boss 3a As for the boss 3a, it is crossed by a threaded passage 3d, communicating with a straight blind opening 3e ( Figures 1 and 5) in which is inserted the punch 1 that a screw 5, engaged in the passage 3d, allows axially block at its end.
  • the punch is removably fixed in the tool holder 3 and can therefore be easily replaced by simply unscrewing the screw 5 and screwing it back subsequent to the insertion of another punch, for example in the opening 3rd.
  • the tool holder has two cylindrical pins 3f and 3g projecting symmetrically, on either side of the plate 3 and whose usefulness will appear later.
  • the tool holder On the upper part of its rear face, the tool holder has, on the one hand, a 3-hour recess in the form of a bowl, and, on the other hand, a cutout 3i.
  • the upper edge 3k of the tool holder 3 has a semi-circular section profile over its entire length.
  • the tool holder 3 In the fixing position on the head 4, the tool holder 3 is engaged by its rectangular part in a seat of homologous shape, 4a, cut out on the front face of the head (FIGS. 1 and 4), seat in which the holder tool is blocked by the action of two jaws 6a and 7a which are inserted into the notches 3b and 3c already mentioned, under the action of a spring 8 stretched between the rear ends of two levers 6 and 7 of which these jaws constitute the ends earlier ( Figures 1 and 6).
  • the levers 6 and 7 are partially engaged in corresponding cutouts 4b and 4c, formed on the lateral faces of the head 4 and communicating, at the rear of the latter, by a window 4d delivering passage to the spring 8.
  • levers are articulated on vertical axes 9a and 9b ( Figures 2, 3, 6 and 7) driven into corresponding housings formed in the body of the head 4 and passing respectively through the cutout 4b, for the first axis, and the cutout 4c , for the second ( Figures 3 and 6).
  • the front part of the jaws 6a and 7a is cut in the form of a bevel with a slightly rounded profile; correspondingly, the rear part of the lateral faces of the tool holder 3 also has a bevel profile of similar inclination (FIG. 6).
  • both of the jaws 6a and 7a and of the tool holder is essentially intended to allow, if necessary, to control the spacing of these jaws during the introduction of the tool holder into the seat 4a of the head 4 : Indeed, when the tool holder is brought into contact with the jaws 6a and 7a by its bevelled parts, it will suffice to exert a slight pressure on the tool holder so that these jaws move apart against the action of the spring 8 already mentioned and let the tool holder engage in the seat 4a of the head 4.
  • the height of the jaws 6a and 7a is less than the length of the two rectangular notches (3b, 3c) with which the tool holder 3 is provided.
  • This blade 10 is fixed to the bottom of the seat 4a of the head 4 by a screw 11 engaged in a threaded passage 4g made in the head and communicating with a vertical housing 4h in which the lower end of the spindle 2 is introduced. note that the screw 11 is also used for fixing this pin in the housing 4h of the head 4.
  • the blade 10 also has a curved tongue 10c which engages in the cutout 3i of the tool holder 3 when the latter is positioned as illustrated in FIG. 4.
  • the upper edge of the recess constituting the seat 4a of the head 4 is constituted by the bottom of a groove 4i, with semi-cylindrical profile, of radius corresponding to that of the upper edge 3k of the tool holder 3 .
  • the difference in level between the upper part of the edge 3k and the upper part of one or the other cylindrical stud (3f and 3g) of the plate 3 corresponds substantially to the difference in level between the portion of the bottom of the groove 4i occupying the highest position and the horizontal portion of the underside of the spoilers 4e and 4f.
  • the introduction of the tool holder 3 in the seat 4a of the head 4 can be carried out in a safe and easy manner: it suffices, in fact, to start by placing this tool holder in the inclined position sketched in broken lines in FIG. 4 by inserting its rounded upper edge in the groove 4i of the head 4.
  • the tool holder is then tilted in direction F (fig. 4) while spreading the jaws 6a and 7a, either by proceeding in the manner already described, or by tightening the levers 6 and 7 against the action of the spring 8, then release these as soon as the tool holder reaches the vertical position visible in the drawing, in which the pins 3f and 3g are placed between the spoilers 4e and 4f and the legs 10a and 10b of the leaf spring 10
  • these are profiled in such a way that they are then slightly bent in a clockwise direction so that they exert a slight vertical pressure on the tool holder and thus ensure that it is held in a perfectly defined axial position, pressing against the bottom of the groove 4i.
  • the tool holder and the tool could form a non-removable whole, the punch 1 being driven into the passage 3e of the tool holder, or even being fixed in this by overmolding, especially if the tool holder is made of injected plastic.
  • the keying device could consist exclusively of the screw 11 projecting into the recess 3h of the plate.
  • the polarization may be formed by any element, projecting into the bottom of the seat 4a, and by a corresponding recess provided on the back of the plate 3, recess in which this element will be placed if the plate is inserted. correctly: this element will, on the contrary, constitute an obstacle to such insertion if the user tries to insert this plate upside down.
  • the seat intended for the tool holder 3 is formed by a simple vertical surface formed on the front part of the head 4 and that the positioning of this tool holder is ensured by contact of its upper edge with a horizontal rod 4i ′ secured to the head 4, fixed on the latter at a distance from the seat less than the thickness of the tool holder.
  • this very simple architecture makes it possible to mount the tool holder 3 on the head 4 in the same way as described above, that is to say by first placing the tool holder in the position illustrated in phantom and by tilting it clockwise while keeping it in permanent contact with the rod 4i '.
  • the upper edge of the tool holder 3 is cut in a bevel and is intended to be engaged in a groove 4i '', of substantially triangular cross section, formed in the head 4, at the upper end of the seat intended to receive the tool holder.
  • This groove has an angular amplitude of value greater than that of the inclination of the bevel that forms the upper edge of the tool holder so as to allow, first, an easy insertion of this edge (as in the representation in phantom) of the tool holder) in the groove 4i '' without having to move the jaws 6a and 7a beforehand, then an easy engagement of the tool holder 3 between these jaws (position illustrated in solid lines).
  • the tool holder can in no case be disposed at upside down with respect to the arrangement illustrated in FIG. 11B, the back of the beveled portion of the tool holder abutting against the extreme right edge of the groove 4i ''.
  • the fabric presser p is formed by a sleeve, for example made of synthetic material, mounted to slide on the body of the needle 1 and subjected to the action of a spring r stretched between the fabric presser itself. - same and the lower part of the needle holder 3.
  • FIG. 13 we see a stuffing press comprising a sole 31 articulated at 32 on a support 23, the upper part of which is shaped identically to the tool holder 3 described above, and which is fixed to a fixing head 24 whose the structural elements correspond, at all points, to those of the fixing head 4, also already described.
  • the fixing head 24 is fixed to the lower end of a vertical bar 22, partially shown and extending parallel to the needle bar 2 * of the sewing machine, bar traditionally provided with a flange 4 * to which a 1 * needle is removably attached.
  • a fixing head of this type could very well be mounted on a support other than a bar such as bar 22: it could, for example, be fixed to the free end of the lever 70, respectively 170 , appearing in FIG. 1, respectively in FIG. 7, of the drawings of the application EP 0 378 965 concerning a "press-stuffing device for a sewing machine", published on July 25, 1990 and to which reference will be made for more details. .
  • the assembly described and shown lends itself particularly well to fixing, on a driving member, for example a needle bar, of any other type of part, whether it itself constitutes a tool or, more simply , a fixing rod of any device to be associated, at least momentarily, with the driving member.
  • a driving member for example a needle bar, of any other type of part, whether it itself constitutes a tool or, more simply , a fixing rod of any device to be associated, at least momentarily, with the driving member.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Connection Of Plates (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP90914500A 1989-10-13 1990-10-10 Ensemble pour monter amoviblement un outil sur un organe menant Expired - Lifetime EP0448666B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH3742/89 1989-10-13
CH3742/89A CH681215A5 (en) 1989-10-13 1989-10-13 Detachable tool assembly e.g. for sewing machine or drill
CH3743/89 1989-10-13
CH374389A CH681236A5 (en) 1989-10-13 1989-10-13 Detachable tool assembly e.g. for sewing machine or drill

Publications (2)

Publication Number Publication Date
EP0448666A1 EP0448666A1 (fr) 1991-10-02
EP0448666B1 true EP0448666B1 (fr) 1994-03-16

Family

ID=25693747

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90914500A Expired - Lifetime EP0448666B1 (fr) 1989-10-13 1990-10-10 Ensemble pour monter amoviblement un outil sur un organe menant

Country Status (15)

Country Link
US (1) US5143006A (zh)
EP (1) EP0448666B1 (zh)
JP (1) JPH04502269A (zh)
KR (1) KR920701556A (zh)
CN (1) CN1050913A (zh)
AU (1) AU634293B2 (zh)
BR (1) BR9006951A (zh)
CA (1) CA2044141A1 (zh)
DE (1) DE69007466T2 (zh)
ES (1) ES2051023T3 (zh)
HU (1) HUT67300A (zh)
MX (1) MX173678B (zh)
PL (1) PL164703B1 (zh)
PT (1) PT95567A (zh)
WO (1) WO1991005900A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI409131B (zh) * 2008-07-18 2013-09-21 Hon Hai Prec Ind Co Ltd 支撐裝置及使用該支撐裝置之刀架

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19518063C2 (de) * 1995-05-17 1997-10-23 Stutznaecker Emil Naehmasch Vielnadelnähmaschine
US7236812B1 (en) * 2003-09-02 2007-06-26 Biotex, Inc. System, device and method for determining the concentration of an analyte
US9486292B2 (en) 2008-02-14 2016-11-08 Immersion Corporation Systems and methods for real-time winding analysis for knot detection
JP2011115759A (ja) * 2009-12-07 2011-06-16 Fukae Kasei Kk ピペット装置
CN103361911A (zh) * 2013-07-30 2013-10-23 苏州巨康缝制机器人有限公司 一种缝针
CN109923255B (zh) * 2017-08-29 2021-05-25 株式会社铃木制作所 缝纫针夹持装置
CH715909A1 (de) * 2019-03-07 2020-09-15 Laesser Ag Verfahren und Vorrichtung zur Sicherstellung der Schlaufenbildung des Nadelfadens auf einer Schiffchen-Grossstickmaschine.
CN112760839A (zh) * 2019-07-04 2021-05-07 莆田城厢晟铭网络有限公司 一种纺织机及操作方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE72170C (de) * Firma H. MUNDLOS & CO. in Magdeburg-Neustadt Stopfapparat für Nähmaschinen
US1899303A (en) * 1932-03-22 1933-02-28 Basso Fiorindo Needle holder for sewing machines
US2300499A (en) * 1939-08-10 1942-11-03 United Shoe Machinery Corp Eyeleting machine
CH298848A (de) * 1951-10-30 1954-05-31 Singer Mfg Co An der Nadelstange einer Nähmaschine angeordneter Stopffuss.
CH319529A (de) * 1953-07-30 1957-02-28 Gegauf Fritz Ag Einrichtung zur schnellen Befestigung des Nähfusses an der Nähfussstange einer Nähmaschine
US2823379A (en) * 1955-06-15 1958-02-11 Boeing Co Aerial tensioning and automatic disconnect unit
DE1065255B (zh) * 1957-08-24
CH362301A (fr) * 1960-10-07 1962-05-31 Mefina Sa Dispositif presse-étoffe pour machine à coudre
US3344761A (en) * 1964-09-10 1967-10-03 Singer Co Screwless needle-clamps
US3457889A (en) * 1967-09-20 1969-07-29 Singer Co Quick release presser feet
US3587498A (en) * 1969-12-11 1971-06-28 Singer Co Sewing needle clamp
US4213411A (en) * 1979-07-30 1980-07-22 The Singer Company Readily attachable and detachable sole plate for a sewing machine
US4359955A (en) * 1981-07-16 1982-11-23 Koshin Seimitsu Kikai Kabushiki Kaisha Detachable presser foot
US4577837A (en) * 1984-07-30 1986-03-25 Marvin Berg Locking mechanism for extendible telescoping tubular members
JPH0515914Y2 (zh) * 1988-07-15 1993-04-26
CH677508A5 (zh) * 1988-11-30 1991-05-31 Mefina Sa

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI409131B (zh) * 2008-07-18 2013-09-21 Hon Hai Prec Ind Co Ltd 支撐裝置及使用該支撐裝置之刀架

Also Published As

Publication number Publication date
PT95567A (pt) 1992-05-29
AU6448190A (en) 1991-05-16
MX173678B (es) 1994-03-22
PL164703B1 (pl) 1994-10-31
HUT67300A (en) 1995-03-28
ES2051023T3 (es) 1994-06-01
EP0448666A1 (fr) 1991-10-02
WO1991005900A1 (fr) 1991-05-02
US5143006A (en) 1992-09-01
DE69007466D1 (de) 1994-04-21
DE69007466T2 (de) 1994-08-11
BR9006951A (pt) 1991-10-08
CA2044141A1 (fr) 1991-04-14
CN1050913A (zh) 1991-04-24
JPH04502269A (ja) 1992-04-23
HU907938D0 (en) 1991-10-28
AU634293B2 (en) 1993-02-18
KR920701556A (ko) 1992-08-12
PL287297A1 (en) 1991-05-06

Similar Documents

Publication Publication Date Title
EP0448666B1 (fr) Ensemble pour monter amoviblement un outil sur un organe menant
FR2547235A1 (fr) Scie a moteur a chaine
EP0090773B1 (fr) Maillon de coupe pour chaîne de coupe
FR3022759A1 (zh)
FR2680342A1 (fr) Coupoir pour couper le bord plie de feuilles pliees de papier ou similaire.
EP0844040B1 (fr) Tête de rodage à extraction automatique des copeaux
CH681215A5 (en) Detachable tool assembly e.g. for sewing machine or drill
FR2474363A1 (fr) Outil d'usinage avec brise-copeaux reglable
FR2882284A1 (fr) Mecanisme pour le verrouillage d'un outil de racloir
CH681236A5 (en) Detachable tool assembly e.g. for sewing machine or drill
FR2475431A1 (fr) Dispositif pour monter de facon interchangeable une matrice faisant partie d'un outil d'une machine a travailler les metaux, et outil pour echanger cette matrice
EP0587498A1 (fr) Scie sauteuse à moyens de fixation rapide de lame
FR2702342A1 (fr) Fixations pour boutons amovibles.
FR2554621A1 (fr) Appareil menager comportant un tableau de bord
WO1993018220A1 (fr) Dispositif enfileur
CH362301A (fr) Dispositif presse-étoffe pour machine à coudre
BE644696A (zh)
FR2765135A1 (fr) Organe de separation par poinconnage
FR2620963A1 (fr) Machine-outil a equarrir les extremites des mortaises recevant des tenons droits
BE672607A (zh)
FR2562180A1 (fr) Vis a tete fendue et outils de manoeuvre de cette vis
FR2554946A1 (fr) Procede et dispositif pour la fixation de plaques d'identification, en particulier sur des composants de distributeurs electriques et plaques d'identification correspondantes
BE904684A (fr) Tete de cle et cle pourvue d'une telle tete.
CH657995A5 (fr) Fixation de securite pour ski.
FR2791300A1 (fr) Dispositif de fixation de plaques d'impression dans des canaux de fixation de grandeur reduite

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19910607

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE CH DE ES FR GB IT LI SE

17Q First examination report despatched

Effective date: 19930614

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH DE ES FR GB IT LI SE

REF Corresponds to:

Ref document number: 69007466

Country of ref document: DE

Date of ref document: 19940421

ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R.L.

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2051023

Country of ref document: ES

Kind code of ref document: T3

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940624

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19941010

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19941011

Ref country code: ES

Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES

Effective date: 19941011

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19941031

Ref country code: CH

Effective date: 19941031

Ref country code: BE

Effective date: 19941031

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

EAL Se: european patent in force in sweden

Ref document number: 90914500.5

26N No opposition filed
BERE Be: lapsed

Owner name: S.A. MEFINA

Effective date: 19941031

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19941010

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19950630

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19950701

EUG Se: european patent has lapsed

Ref document number: 90914500.5

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19991007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051010