EP0023950B1 - Schneidvorrichtung - Google Patents

Schneidvorrichtung Download PDF

Info

Publication number
EP0023950B1
EP0023950B1 EP80102909A EP80102909A EP0023950B1 EP 0023950 B1 EP0023950 B1 EP 0023950B1 EP 80102909 A EP80102909 A EP 80102909A EP 80102909 A EP80102909 A EP 80102909A EP 0023950 B1 EP0023950 B1 EP 0023950B1
Authority
EP
European Patent Office
Prior art keywords
cutting
cutting device
air cylinder
knives
cuts
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
Application number
EP80102909A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0023950A1 (de
Inventor
Heinz Goldbeck
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.)
OFFERTA DI LICENZA AL PUBBLICO
Original Assignee
Duerkoppwerke GmbH
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 Duerkoppwerke GmbH filed Critical Duerkoppwerke GmbH
Publication of EP0023950A1 publication Critical patent/EP0023950A1/de
Application granted granted Critical
Publication of EP0023950B1 publication Critical patent/EP0023950B1/de
Expired 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
    • D05B3/10—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 making piped openings

Definitions

  • the invention relates to a cutting device according to the preamble of the claim.
  • a device for making the gusset cuts according to the preamble of the claim is known, the v-shaped, opposing knives of which are connected to one another in a variable manner by a threaded spindle which can be driven by a motor.
  • the invention specified in the claim is based on the task of creating a cutting device for gusset cuts which is equipped with a particularly simple drive and which is therefore structurally simpler than the previously known construction.
  • Reference number 1 designates a two-needle sewing machine of conventional construction, the up and down moving needle bar 2 of which has a needle holder with two needles, of which only one needle 3 (FIG. 1) is visible.
  • Fig. 2 shows a stitch plate 4 with the stitch holes 5 and 5 'for the two needles mentioned, which sew the two seams for the production of a piped pocket opening in a known manner with double lockstitch looper, not shown, arranged below the stitch plate 4.
  • a separating knife 6 of known design moves between the two needles to produce a longitudinal slot L for the pocket opening.
  • the stitch plate 4 is fastened in a recess in a base plate 7 of the sewing machine 1, which in turn is embedded in a conventional sewing table plate 12.
  • the throat plate 4 has two openings for the passage of the teeth of a conventional double-row hopping conveyor 8 and the base plate 7 is provided with an opening 9 for the passage of the angle cutting blades 10 and 11 of the cutting device, which is shown in Fig. 1 in its initial position.
  • the angle cutting blades 10 and 11 consist of four dagger-like cutting blades, which together are only visible in FIG. 2 and are arranged around a guide mandrel 13, which is described in more detail below.
  • the angle cutting blades 10 and 11 are vertically displaceably mounted so that they can be moved by an extending piston rod 14 'of the compressed air cylinder 14.
  • the four cutting blades of the angle cutting knife 10 and 11 are fixed in a known manner by means of the clamping screws 15 and 15 'and correspondingly shaped clamping pieces on a cutter head 16 which is fixedly connected to the piston rod 14' of the compressed air cylinder 14.
  • the piston rod 14 ' is passed through a stationary guide plate 17 which is attached to a stationary part of the sewing machine 1.
  • the guide plate 17 is connected to a holder 19 for the compressed air cylinder 14 via a support rod 18, which is attached parallel to the piston rod 14 ′ and is directed downward.
  • a clamping piece 20 is guided, which is clamped at one end to the piston rod 14 'and which follows its up and down movements; at the other end, the clamping piece 20 includes the support rod 18 in the form of a fork.
  • Receiving holes in the clamping piece 20 and a holding plate 21 at the lower end of the compressed air cylinder 14 hang the ends of a return spring 22 which pulls the extended piston rod 14 'back into the starting position (FIG. 1) as soon as the compressed air cylinder 14 is no longer subjected to compressed air.
  • the compressed air cylinder 14 can be supplied with compressed air via a compressed air connection 23, which comes from a compressed air source, not shown.
  • the seams N1 and N2 (Fig. 3, top) are sewn.
  • the separating knife 6 for the longitudinal section L of the pocket opening is switched on at a predetermined point.
  • the first gusset cut E1 is made by means of the angle cutting knife 10 at a certain point.
  • Such gusset cuts or angular cuts connect the longitudinal slot L of the pocket opening with the seam ends; Wrapping cut E1 establishes the connection between L and the two ends of the seam sections N1 and N2 (FIG.
  • the guide mandrel 13 prevents the angular cutting knife 10 from being undesirably cut into the flap and / or main material by repulsively pushing them aside.
  • the guide mandrel 13 further prevents, by means of its rejection function, also undesired cutting of the simultaneously extended, but now not required, angle cutting knife 11, by pushing aside the material which is on the side of the cutting device in the area of action of the angle cutting knife 11.
  • the angle cutting knife not required for the respective wound cut is indicated by dash-dotted lines.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
EP80102909A 1979-08-11 1980-05-24 Schneidvorrichtung Expired EP0023950B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2932664A DE2932664C2 (de) 1979-08-11 1979-08-11 Schneidvorrichtung an einem Paspeltaschenautomaten
DE2932664 1979-08-11

Publications (2)

Publication Number Publication Date
EP0023950A1 EP0023950A1 (de) 1981-02-18
EP0023950B1 true EP0023950B1 (de) 1983-12-21

Family

ID=6078280

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80102909A Expired EP0023950B1 (de) 1979-08-11 1980-05-24 Schneidvorrichtung

Country Status (4)

Country Link
US (1) US4271768A (enrdf_load_stackoverflow)
EP (1) EP0023950B1 (enrdf_load_stackoverflow)
JP (1) JPS5666285A (enrdf_load_stackoverflow)
DE (1) DE2932664C2 (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58190494A (ja) * 1982-04-30 1983-11-07 三菱電機株式会社 穴かがりミシンの布切り装置
JPS6096295A (ja) * 1983-10-31 1985-05-29 株式会社ジユーキ 布に切り口を付ける装置
DE3404758C2 (de) * 1984-02-10 1986-04-10 Dürkoppwerke GmbH, 4800 Bielefeld Tascheneingriff-Nähautomat mit einer Schneidvorrichtung zum Herstellen der beiden Einzwickschnitte
US5361713A (en) * 1992-02-05 1994-11-08 Brother Kogyo Kabushiki Kaisha Work sheet cutting blade with continuous blade displacement detection
US5373798A (en) * 1994-01-27 1994-12-20 Atlanta Attachment Company Cloth cutter attachment
JP4236454B2 (ja) 2002-12-05 2009-03-11 Ｊｕｋｉ株式会社 玉縁縫製装置
JP2015168895A (ja) * 2014-03-06 2015-09-28 ブラザー工業株式会社 ミシン

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2529072A (en) * 1948-05-21 1950-11-07 Reece Corp Buttonhole sewing machine
DE2037735A1 (en) * 1970-07-30 1972-02-03 Burghardt, Kurt, 875 1 Großwallstadt Clipping unit - for side cuts at the ends of pocket apertures for sewing of pocket pipings
DE2240617A1 (de) * 1972-08-18 1974-02-28 Duerkoppwerke Naeheinrichtung zur herstellung paspelierter oeffnungen
FR2197389A5 (enrdf_load_stackoverflow) * 1972-08-21 1974-03-22 Duerkoppwerke
DE2313717C3 (de) * 1973-03-20 1975-12-11 Pfaff Industriemaschinen Gmbh, 6750 Kaiserslautern Einrichtung zur Herstellung von Paspelöffnungen in Zuschnitteilen von Bekleidungsstücken
DE2322696C2 (de) * 1973-05-05 1982-12-23 Beisler Gmbh, 8752 Goldbach Vorrichtung zum Bilden von Einzwickschnitten an den Enden von Tascheneinschnitten in Nähgutteilen
DE2325669C3 (de) * 1973-05-21 1979-11-15 Kochs Adler Ag, 4800 Bielefeld Vorrichtung zur Herstellung von paspelierten öffnungen in Bekleidungsstücken
US3820481A (en) * 1973-08-08 1974-06-28 Duerkoppwerke Device for use in sewing apparatus
JPS5623830Y2 (enrdf_load_stackoverflow) * 1974-08-16 1981-06-04
JPS5272658A (en) * 1975-12-11 1977-06-17 Pfaff Ind Masch Device for edging opening of cut cloth piece of suit
JPS5348132A (en) * 1976-10-14 1978-05-01 Fuji Heavy Ind Ltd Igniting device of internal combustion engine
JPS5830052U (ja) * 1981-08-25 1983-02-26 日産デイ−ゼル工業株式会社 捩り振動吸収ダンパ

Also Published As

Publication number Publication date
US4271768A (en) 1981-06-09
JPS6241038B2 (enrdf_load_stackoverflow) 1987-09-01
DE2932664A1 (de) 1981-02-12
EP0023950A1 (de) 1981-02-18
DE2932664C2 (de) 1983-01-20
JPS5666285A (en) 1981-06-04

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