EP1580309A2 - Machine à coudre les boutonnières avec dispositif de coupe de boutonnière - Google Patents

Machine à coudre les boutonnières avec dispositif de coupe de boutonnière Download PDF

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Publication number
EP1580309A2
EP1580309A2 EP05005326A EP05005326A EP1580309A2 EP 1580309 A2 EP1580309 A2 EP 1580309A2 EP 05005326 A EP05005326 A EP 05005326A EP 05005326 A EP05005326 A EP 05005326A EP 1580309 A2 EP1580309 A2 EP 1580309A2
Authority
EP
European Patent Office
Prior art keywords
cutting tool
buttonhole
sewing machine
carrier
cutting
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.)
Withdrawn
Application number
EP05005326A
Other languages
German (de)
English (en)
Other versions
EP1580309A3 (fr
Inventor
Thomas Nöltge
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.)
Duerkopp Adler AG
Original Assignee
Duerkopp Adler AG
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 DE200420004596 external-priority patent/DE202004004596U1/de
Application filed by Duerkopp Adler AG filed Critical Duerkopp Adler AG
Publication of EP1580309A2 publication Critical patent/EP1580309A2/fr
Publication of EP1580309A3 publication Critical patent/EP1580309A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B37/00—Devices incorporated in sewing machines for slitting, grooving, or cutting
    • D05B37/02—Slitting or grooving devices
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings or for fastening articles, e.g. buttons, by sewing
    • D05B3/06—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings or for fastening articles, e.g. buttons, by sewing for sewing buttonholes
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2207/00—Use of special elements
    • D05D2207/05—Magnetic devices
    • D05D2207/06—Permanent magnets

Definitions

  • the invention relates to a buttonhole sewing machine, with a buttonhole cutting device with a lower cutting tool, with an upper Cutting tool, which by means of a releasable clamping device on a Cutting tool carrier is firmly but interchangeable clamped and the down against the lower cutting tool is movable, wherein a Cutting tool a knife and the other cutting tool Cutting block is.
  • EP 1 371 770 A (corresponding to US 6,684,798, JP 2004-8804 A, CN 1 468 998 A, IN 277 / KOL / 03) is such a buttonhole sewing machine known, wherein the upper cutting tool by means of a drive is moved, which is adjustable to different cutting forces.
  • buttonholes of different length and / or shape needed. Buttonholes of different lengths can be used both with knives different length as well as with cutting blocks of different Length can be produced. Because of the better accessibility of the upper Cutting tool it is common for the upper cutting tool to change to change the buttonhole length or shape. Because of sewing machines However, there are relatively tight spaces, it is usually necessary the Nähgutklammer parts provided on both sides of the cutting tool to take out of the machine, so that sufficient space for the movement of the hands when replacing the upper cutting tool consists. Removing the fabric clamp parts results in that the base plate is open on the upper side and that inside the Sewing machine located drive parts are exposed.
  • the invention is therefore based on the object, a cutting device retrain the generic type such that a change of the upper Cutting tool can be done with one hand and that the risk of a Falling of the cutting tool during tool change largely is excluded.
  • the cutting tool carrier a holding device for at least provisional fixation the cutting tool on the cutting tool carrier with dissolved clamping device having.
  • the inserted cutting tool is with the Firmly clamped cutting tool carrier, since the cutting tool when Cutting or punching buttonholes in solid or tough, if necessary also multi-layered material is exposed to considerable loads.
  • the clamping device by the seamstress using a tool, such as a screwdriver or a hexagon wrench, loosened with one hand.
  • the cutting tool after the Loosen the clamping device further held on the cutting tool carrier.
  • the temporary fixation of the cutting tool on the cutting tool carrier offers the seamstress the opportunity, first with one hand the To release clamping device and then also with the same hand the Pull cutting tool out and through another cutting tool for another buttonhole size, also with the same hand, to replace without the opposite Nähgutklammer parts of the machine remove.
  • the holding device can be a comprise magnets integrated in the cutting tool carrier, which advantageously may be formed by a permanent magnet.
  • a provisional fixation of the cutting tool On the cutting tool carrier also be possible because the holding device a resilient holding mechanism comprises.
  • the clamping device comprise a clamping claw, by means of a screw against the cutting tool is firmly clamped and wherein between the clamping claw and the screw a compression spring arranged is.
  • Figs. 1 and 2 show the basic structure of a buttonhole sewing machine a housing-shaped lower base plate 10, one of a End of the base plate 10 upstanding stand 12 and one of the upper end of the stand 12 outgoing, horizontal, parallel to Base plate 10 extending arm 14.
  • the base plate 10, the towering Stand 12 and the horizontal arm 14 form the usual in sewing machines, C-shaped configuration.
  • the seamstress workstation is located on the left side of Fig. 1. So there is the operating side 15th
  • a buttonhole cut 21 is made by means of a lower, in the base plate 10 firmly anchored cutting tool 22 and a upper, lowerable on the lower cutting tool 22 cutting tool 24.
  • the lower cutting tool 22 a knife and the upper cutting tool 24 a cutting block, which forms a kind of anvil in cooperation with the knife.
  • the length of the buttonhole cut 21 can be both by the length of the knife as well as the length of the cutting block. If the cutting block is shorter than the knife, the knife is missing over a Part of its length the back pressure, so there is no cut here.
  • the upper cutting tool 24 is replaced by a cutting tool carrier 26 received at the lower end of a sliding bearing 29 vertically guided rod 28 is attached.
  • the upper end of the rod 28 is above a tab 30 with a lever 32nd connected about an axis 33 in the upper arm 14 of the sewing machine is pivotally mounted.
  • the tab 30 allows implementation of the Swivel movement of the lever 32 in a pure vertical movement, the the displacement of the rod 28 is required.
  • a pneumatically actuated Piston-cylinder unit 34 whose housing 35 with its lower end is mounted pivotably in the base plate 10 in an axis 35a. With help the unit 34, the lever 32 can be pivoted. When extending the piston rod 36 of the unit 34 from the housing 35 is the lever 32nd pivoted counterclockwise and the rod 28 with the Cutting tool 24 lowered.
  • the Nähgutklammern 18 are on both sides the sewing position 23 is arranged.
  • the Nähgutklammern 18 each have a clamping foot 37, which at the lower end of a respective pivot lever 38 is seated, which in turn is attached to the lever 16.
  • the two clamp feet 37 are on both sides of the sewing position 23 on the fabric 19 placed on and then with the help of the pivot lever 38 apart, So to the left or right in Fig. 2, moved so that the fabric 19 is tense.
  • the cutting tool carrier 26 has a Guide 39 for receiving the upper cutting tool 24, the on the cross-sectional shape of an upper header 40 of the cutting tool 24 is adjusted.
  • a cutting tool 24 can thus be seen in Fig. 3 from the left, So from the operator side 15 of the seamstress, inserted into the guide 39 until it is bounding against a shift to the right Stop 42 hits.
  • the guide 39 for the upper cutting tools 24 formed by an upper Wall 44 and a left side wall 46 which are at right angles to each other stand. In this angle, the head piece 40 by means of a Clamping 48 ( Figures 4 and 6) are pressed in, as later in more detail should be explained.
  • the guide 39 with the two walls 44 and 46 is otherwise shown in Fig. 5 in a view from below (arrow V in Fig. 4).
  • the cutting tool 24 is omitted in the illustration of FIG. 5.
  • the type of clamping of the cutting tool 24 is in particular made a synopsis of Figs. 4 and 6 can be seen immediately.
  • the cutting tool carrier 26 consists of a central part 50, on which the guide 39 with the walls 44, 46 is located, and two laterally projecting, provided with bores approaches 52, 54, the an attachment by means of screws 56 to a foot plate 58 at the bottom Allow the end of the rod 28 (Figure 7).
  • the stopper 42 is part of an angled sheet metal part, the one with a Long hole provided strip 60 includes.
  • a screw 62 is through the slot of the strip 60 therethrough from the outside into the side wall 46th screwed.
  • the clamping claw 48 which is used for clamping the cutting tool 24 in the cutting tool carrier 26, has a projecting cam 64 at its in Fig. 4 and 6 upper end, which is located in there Recess 66 of the central portion 50 of the cutting tool carrier 26 occurs. In this way, the clamping claw 48 is roughly positioned. She can be in Incidentally, by means of a screw 68, which in the middle part 50 of the cutting tool carrier 26 enters, tightened against the cutting tool 24 so that this in the guide 39 with the two surfaces 44, 46 is pressed.
  • the cutting block the here the upper cutting tool 24 embodied, replaced.
  • a tool 70 here an Allen key, if necessary also a screwdriver, are attached to the screw 68.
  • the seamstress needed the right hand, while she needed the left one Hand touched the cutting tool and after loosening the clamping claw Had to take out 48. It therefore requires both hands, and despite the use of both hands there is a risk that the cutting tool falls down and in the open at the cutting tool change housing-shaped Base plate 10 falls into it. This could possibly happen significant delays, especially if more frequent Cutting tool change would be necessary.
  • a permanent magnet 72 is inserted.
  • the permanent magnet 72 forms a Fixing device for the temporary fixing of the cutting tool 24 on the cutting tool carrier 26.
  • This fixing device only has to be designed so that they are the weight of the cutting tool 24, plus a certain security surcharge. When operating the sewing machine, the cutting tools 24 have take up much higher forces, so that a tension with the help the clamping claw 48 is required.
  • the permanent magnet 72 thus forms a holding device for provisional Holding the cutting tool 24 during the tool change.
  • FIGS. 4 and 6 Another example of such a holding device results from a Considering FIGS. 4 and 6.
  • the screw 68 is partially released, but still screwed in the associated thread in the middle part 50.
  • a compression spring 74 is located in a recess 76 on the outer Side of the clamping claw 48 and is supported on the head 69 of the screw 68th or a washer 78, which is located under the head 69 from.
  • the clamping claw 48 is resilient, but yielding in the pressed clamped position.
  • the Cutting tool 24 After loosening the screw 68 is the Cutting tool 24 still resiliently held by the clamping claw 48.
  • the cutting tool 24 may be detected and under deflection of the clamping claw 48 and under deformation of the spring 74 are pulled out of the guide 39.
  • a holding device for provisionally holding the cutting tools Be considered resilient retaining clips that provide a resilient pressure on the Cutting tool 24 in the through the walls 44, 46 of the guide 39 formed Angle in, if necessary, also vacuum mechanisms, which suck the cutting tool 24 in the guide 39.
  • Fig. 7 illustrates an alternative to Fig. 6.
  • a Leaf spring 80 is provided, which corresponds to the shape and contour of the Head piece 40 of the upper cutting tool 24 is angled.
  • the Leaf spring 80 is by means of a screw 82 on the central part 50 of the Cutting tool carrier 26 attached.
  • the leaf spring 80 is shaped so that it detects the upper cutting tool 24 behind its head 40 and in the angle formed by the upper wall 44 and side wall 46, press and holds it here elastically. The effect is similar to that of the elastically prestressed clamping claw 48 according to FIG. 6.
  • the position of the leaf spring 80 must be in the area that is not needed by the clamping claw 48.
  • the leaf spring 80 could in the side view shown in Fig. 3 to the right in relation offset on the clamping claw 48 and in the end view of FIG. 4 behind the Spannpratze 48 and be concealed by this.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
EP05005326A 2004-03-22 2005-03-11 Machine à coudre les boutonnières avec dispositif de coupe de boutonnière Withdrawn EP1580309A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE202004004596U 2004-03-22
DE200420004596 DE202004004596U1 (de) 2004-03-22 2004-03-22 Knopfloch-Schneidvorrichtung für Knopfloch-Nähmaschinen
DE102004055713 2004-11-18
DE102004055713A DE102004055713A1 (de) 2004-03-22 2004-11-18 Knopfloch-Nähmaschine mit einer Knopfloch-Schneidvorrichtung

Publications (2)

Publication Number Publication Date
EP1580309A2 true EP1580309A2 (fr) 2005-09-28
EP1580309A3 EP1580309A3 (fr) 2006-09-20

Family

ID=34862949

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05005326A Withdrawn EP1580309A3 (fr) 2004-03-22 2005-03-11 Machine à coudre les boutonnières avec dispositif de coupe de boutonnière

Country Status (5)

Country Link
EP (1) EP1580309A3 (fr)
JP (1) JP2005270654A (fr)
CN (1) CN1673433B (fr)
DE (1) DE102004055713A1 (fr)
TW (1) TW200533800A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114481471A (zh) * 2022-02-15 2022-05-13 拓卡奔马机电科技有限公司 切刀控制的方法、系统、切刀装置、锁眼机及存储介质

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI456099B (zh) * 2012-02-20 2014-10-11 Kaulin Mfg Co Ltd 用於鈕釦輸送的氣吹式定位裝置
DE102023203472A1 (de) 2023-04-17 2024-10-17 Dürkopp Adler GmbH Verfahren zum Betrieb einer Nähmaschine zum Ausbilden eines Knopf- oder Schnürlochs

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3513793A (en) 1968-09-10 1970-05-26 Singer Co Magnetized sewing needles
EP1371770A2 (fr) 2002-06-10 2003-12-17 Dürkopp Adler Aktiengesellschaft Machine à coudre les boutonnières

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7433101U (de) * 1975-02-13 Duerkoppwerke Gmbh Knopflochnähmaschine mit Knopflochschneideinrichtung
DE680684C (de) * 1937-05-14 1939-09-05 Anker Werke Ag Nadelhalter fuer Zweinadelnaehmaschinlen
DE1028864B (de) * 1954-04-09 1958-04-24 Zuendapp Werke G M B H Nadelhalter fuer Mehrnadel-Naehmaschinen
JPS5817636B2 (ja) * 1978-07-29 1983-04-08 古本 まきえ ミシン針の取り付け方法
JPS55151984A (en) * 1979-05-15 1980-11-26 Bunsaku Taketomi Sewing machine previously provided with cloth cutter
JPS6156688A (ja) * 1984-06-29 1986-03-22 三菱電機株式会社 穴かがりミシンの布切断装置
JPS625379A (ja) * 1985-07-02 1987-01-12 株式会社　勝見商会 ミシンの布切断装置
DE19716631C2 (de) * 1997-04-21 2002-11-21 Duerkopp Adler Ag Einrichtung zum Toleranzausgleich für eine Schneideinrichtung
DE19716629C1 (de) * 1997-04-21 1998-08-20 Duerkopp Adler Ag Knopflochnähmaschine mit mehreren Schneidblöcken
JP3829472B2 (ja) * 1998-04-27 2006-10-04 ブラザー工業株式会社 ミシンの縫針保持装置
JP4083890B2 (ja) * 1998-08-31 2008-04-30 Ｊｕｋｉ株式会社 ミシンの針棒
DE10225511C1 (de) * 2002-06-10 2003-06-18 Duerkopp Adler Ag Knopfloch-Nähmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3513793A (en) 1968-09-10 1970-05-26 Singer Co Magnetized sewing needles
EP1371770A2 (fr) 2002-06-10 2003-12-17 Dürkopp Adler Aktiengesellschaft Machine à coudre les boutonnières
JP2004008804A (ja) 2002-06-10 2004-01-15 Duerkopp Adler Ag ボタン穴ミシン
CN1468998A (zh) 2002-06-10 2004-01-21 �Ŷ�����-�����չɷݹ�˾ 钮扣孔缝纫机
US6684798B2 (en) 2002-06-10 2004-02-03 Dürkopp Adler Aktiengesellschaft Buttonhole sewing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114481471A (zh) * 2022-02-15 2022-05-13 拓卡奔马机电科技有限公司 切刀控制的方法、系统、切刀装置、锁眼机及存储介质

Also Published As

Publication number Publication date
JP2005270654A (ja) 2005-10-06
TW200533800A (en) 2005-10-16
CN1673433B (zh) 2012-01-18
DE102004055713A1 (de) 2005-10-13
CN1673433A (zh) 2005-09-28
EP1580309A3 (fr) 2006-09-20

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