EP0174043A1 - Deckelsperrvorrichtung für das Greiferhaus einer Nähmaschine - Google Patents

Deckelsperrvorrichtung für das Greiferhaus einer Nähmaschine Download PDF

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Publication number
EP0174043A1
EP0174043A1 EP85201311A EP85201311A EP0174043A1 EP 0174043 A1 EP0174043 A1 EP 0174043A1 EP 85201311 A EP85201311 A EP 85201311A EP 85201311 A EP85201311 A EP 85201311A EP 0174043 A1 EP0174043 A1 EP 0174043A1
Authority
EP
European Patent Office
Prior art keywords
cover
housing
base plate
plate
pivot
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.)
Granted
Application number
EP85201311A
Other languages
English (en)
French (fr)
Other versions
EP0174043B1 (de
Inventor
Antonio Jimenez
Pierre-Maurice Rochat
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 EP0174043A1 publication Critical patent/EP0174043A1/de
Application granted granted Critical
Publication of EP0174043B1 publication Critical patent/EP0174043B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B73/00—Casings
    • D05B73/04—Lower casings
    • D05B73/12—Slides; Needle plates

Definitions

  • Most known sewing machines include in their lower part a loop-taking mechanism placed under a cover formed by a plate and allowing access to this mechanism, this cover being engaged in a housing of a base plate forming a part of the work surface.
  • the object of the invention is to make it easier for the user to open and close this cover.
  • the sewing machine according to the invention is characterized in that the cover is connected to the base plate by a pivot device whose pivot axis is substantially perpendicular to the cover plate and passes close to it. '' a portion of the periphery of the cover, this device allowing sliding along its pivot axis, an elastic return member urging the cover towards the interior of the housing, a manual control member making it possible to move the cover against the action of the return member for extracting the cover from its housing.
  • the machine shown in FIG. 1 is conventionally constituted by a base 1 supporting a lower arm 2 and a column 3 carrying an upper arm 4, at the end of which is the needle holder bar 5.
  • the upper face of the free arm 2 carries a plate 6 covering the conveyor mechanism, the claws 7 of which are visible, while a cover 8 provided with a transparent window 9 covers the loop-taking mechanism , which is not shown.
  • the opening of this cover 8 is controlled by a simple pressure on a control button 10.
  • the cover 8 consists of a plate which is engaged in a housing 11 provided in a base plate 12.
  • the cover 8 is connected to the base plate 12 by a pivot device whose the pivot axis is substantially perpendicular to the cover plate and passes close to a portion of the periphery of the latter.
  • This device allows the cover to slide along its pivot axis.
  • a pivot 13 is integral with the cover 8 and passes through two bores or bearings 14 and 15 provided in the base plate 12 and respectively in a part 16 in the form of a square which is integral with this plate 12. The pivot 13 can thus turn and slide in the bores 14 and 15.
  • the pivot 13 is subjected to the action of a coil spring 17 which acts simultaneously in compression and in torsion.
  • the turns of its lower end have a smaller diameter than that of the pivot, so as to enclose the latter to be made integral by friction.
  • the upper part of the spring has spiers spaced apart and whose inner diameter is larger than that of the pivot.
  • the upper end of the spring bears against the base plate 12 to exert an axial downward thrust on the pivot and against the piece 16 at right angles to exert a twist on the pivot tending to open the cover 8 in the direction of arrow f in Figure 2.
  • a stop 21 integral with the lower face 8 is intended to cooperate with an edge 22 of the housing provided in the plate 12 in order to determine the opening angle of the cover 8.
  • a boss 23 integral with the cover or the edge of the housing serves to fix the closed position of the cover so as to obtain parallelism between the edges of the cover and those of the housing.
  • FIGS. 4 and 5 illustrate an alternative embodiment which makes it easier to adjust the torque exerted by the spring 17.
  • the lower end of the pivot 13 is always engaged in a bearing of the part 16.
  • the upper part of this pivot turns and slides in a plastic part 24, which is screwed onto the part 16.
  • the pivot 13 carries a stud 25 which is engaged in a notch 26 in the part 24, in the closed position of the cover 8.
  • a ramp mechanism makes it possible to prevent the lower face from rubbing against the upper edge of the plate during the opening movement.
  • the part 24 has an arcuate ramp 27 formed by a first portion 28 of slight inclination, then a second portion 29 of greater inclination and at the end of a portion 30.
  • the lower end of the spring 17 is engaged in a notch of a ring 31 having slots 32 to be retained by a pin 33 of the pivot 13.
  • the upper end 34 of the spring 17 is engaged in a notch 35 of the part 24 This arrangement allows easy adjustment of the initial torsion of the spring 17, this by lifting the ring 31 to disengage it from the pin 33 and let it take position on this pin by the slot 32, which corresponds to the desired tension.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
EP85201311A 1984-09-04 1985-08-15 Deckelsperrvorrichtung für das Greiferhaus einer Nähmaschine Expired EP0174043B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4304/84 1984-09-04
CH4304/84A CH658272A5 (fr) 1984-09-04 1984-09-04 Machine a coudre munie d'un couvercle du mecanisme de prise de boucle.

Publications (2)

Publication Number Publication Date
EP0174043A1 true EP0174043A1 (de) 1986-03-12
EP0174043B1 EP0174043B1 (de) 1988-02-03

Family

ID=4273583

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85201311A Expired EP0174043B1 (de) 1984-09-04 1985-08-15 Deckelsperrvorrichtung für das Greiferhaus einer Nähmaschine

Country Status (9)

Country Link
US (1) US4646665A (de)
EP (1) EP0174043B1 (de)
JP (1) JPS6164281A (de)
AU (1) AU573893B2 (de)
CA (1) CA1242359A (de)
CH (1) CH658272A5 (de)
DE (1) DE3561555D1 (de)
ES (1) ES8609538A1 (de)
ZA (1) ZA856369B (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09299674A (ja) * 1996-05-10 1997-11-25 Singer Nikko Kk ミシンの滑り板装置
JP4395382B2 (ja) * 2004-01-23 2010-01-06 Ｊｕｋｉ株式会社 ミシンの下糸供給機構
JP2010158458A (ja) * 2009-01-09 2010-07-22 Brother Ind Ltd 針板及びミシン
JP2011251083A (ja) 2010-06-04 2011-12-15 Brother Ind Ltd 針板及びミシン
CN103422267A (zh) * 2012-05-21 2013-12-04 东莞市嘉龙皮革机械有限公司 针板弹开机构
JP6433188B2 (ja) * 2014-08-08 2018-12-05 蛇の目ミシン工業株式会社 ロック付き針板交換装置
JP2018166711A (ja) * 2017-03-29 2018-11-01 ブラザー工業株式会社 ミシン
JP7152185B2 (ja) * 2018-05-18 2022-10-12 株式会社ジャノメ 針板着脱機構及びそれを備えたミシン

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR738724A (fr) * 1931-06-17 1932-12-29 Plaque de recouvrement pour crochet de machine à coudre
DE625301C (de) * 1932-04-27 1936-02-07 Mauser Werke Akt Ges Naehmaschine zum Ein- oder Annaehen von Gummiband
US3530812A (en) * 1967-09-14 1970-09-29 Elitex Zavody Textilniho Looper housing arrangement
US4040368A (en) * 1975-09-17 1977-08-09 Nerino Marforio Closure cover for an opening providing access to sewing machine mechanisms
EP0082414A1 (de) * 1981-12-18 1983-06-29 Necchi Societa Per Azioni In zwei Stellungen verschwenkbare Stichplatte für Nähmaschine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE740831C (de) * 1941-11-07 1943-10-29 Phoenix Naehmaschinen A G Baer Schraubenlose Stichplattenbefestigung bei Naehmaschinen
CH250346A (fr) * 1945-08-08 1947-08-31 Mefina Sa Dispositif de fixation d'une plaque trou-aiguille d'une machine à coudre.
US2723638A (en) * 1952-07-17 1955-11-15 Irving J Moritt Sewing machine
US2770207A (en) * 1953-01-05 1956-11-13 Hess Otto Device for fastening the stitch plate on the lower part of a sewing machine
US2808797A (en) * 1955-01-19 1957-10-08 White Sewing Machine Corp Needle plate latch
US2877728A (en) * 1956-04-12 1959-03-17 Singer Mfg Co Fastening devices for sewing machine attachments and the like
US3060878A (en) * 1960-01-25 1962-10-30 Singer Mfg Co Sewing machine throat plate fastening means
US3071091A (en) * 1961-01-30 1963-01-01 Loreen H Erbland Guide bed for sewing machines
US3440987A (en) * 1967-04-25 1969-04-29 Singer Co Throat plate raising attachments for sewing machines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR738724A (fr) * 1931-06-17 1932-12-29 Plaque de recouvrement pour crochet de machine à coudre
DE625301C (de) * 1932-04-27 1936-02-07 Mauser Werke Akt Ges Naehmaschine zum Ein- oder Annaehen von Gummiband
US3530812A (en) * 1967-09-14 1970-09-29 Elitex Zavody Textilniho Looper housing arrangement
US4040368A (en) * 1975-09-17 1977-08-09 Nerino Marforio Closure cover for an opening providing access to sewing machine mechanisms
EP0082414A1 (de) * 1981-12-18 1983-06-29 Necchi Societa Per Azioni In zwei Stellungen verschwenkbare Stichplatte für Nähmaschine

Also Published As

Publication number Publication date
ES546486A0 (es) 1986-08-01
CA1242359A (fr) 1988-09-27
ES8609538A1 (es) 1986-08-01
JPS6164281A (ja) 1986-04-02
ZA856369B (en) 1986-04-30
EP0174043B1 (de) 1988-02-03
US4646665A (en) 1987-03-03
AU4702085A (en) 1986-03-13
DE3561555D1 (en) 1988-03-10
AU573893B2 (en) 1988-06-23
CH658272A5 (fr) 1986-10-31

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