EP0049312A1 - Machine à coudre - Google Patents

Machine à coudre Download PDF

Info

Publication number: EP0049312A1
Authority: EP; European Patent Office
Prior art keywords: needle plate; presser; sewing; plate; machine
Prior art date: 1980-10-03
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

EP81100441A

Other languages

German (de)

English (en)

Other versions

EP0049312B1 (fr

Inventor

Siegfried Dipl.-Ing. Mende

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.)

Kombinat Textima VEB

Original Assignee

Kombinat Textima VEB

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.)

1980-10-03

Filing date

1981-01-22

Publication date

1982-04-14

1981-01-22 Application filed by Kombinat Textima VEB filed Critical Kombinat Textima VEB

1981-01-22 Priority to AT81100441T priority Critical patent/ATE10654T1/de

1982-04-14 Publication of EP0049312A1 publication Critical patent/EP0049312A1/fr

1984-12-05 Application granted granted Critical

1984-12-05 Publication of EP0049312B1 publication Critical patent/EP0049312B1/fr

Status Expired legal-status Critical Current

Links

Images

Classifications

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

Definitions

the invention relates to a sewing machine, which is equipped for guiding and transporting the sewing material with a stitch plate attached to a stitch plate receiving strip of a machine bed, a spring-loaded fabric presser arranged above the stitch plate and with a fabric slide located underneath, which temporarily passes through slots in the stitch plate and rises from the level of the latter in order to transport the sewing material.
the sewing process is associated with strong vibrations.
the invention is now based on the new finding that the known natural vibrations of the needle plate, which arise during the sewing process, in particular in the fabric presser / needle plate vibration system, form one of the causes for the presser lifting off the material to be sewn.
a second basis for the present invention consists in the further realization that the time at which the sewing material is at rest on high-speed sewing machines is not sufficient for the free vibrations of the presser and the throat plate to decay sufficiently.
the presser / throat plate vibration system is to be improved in such a way that there are no disturbing overlaps of its free vibrations with the forced vibrations of the presser / pusher system.
the invention characterized in the claims sets itself the task of creating a sewing machine in which the lifting of the presser during the sewing process is further suppressed by the free oscillations of the system presser / throat plate due to a reduction in the natural vibration behavior of the throat plate, reducing the spring stiffness of the latter is hindered.
the object of the invention is achieved in that the part of the needle plate opposite the presser is freely arranged in a recess in the machine bed. It is possible to interrupt the throat plate holder or to equip the Stiohplatte with incisions approximately transverse to the sewing direction.
the presser / throat plate system swings out sooner than is the case if the throat plate lies directly on an uninterrupted throat plate receiving bar, as before, without special precautions.
the arrangement and attachment of the throat plate is provided so that the free Vibrations of the presser / throat plate system have sufficiently subsided due to the reduction in the spring stiffness of the throat plate before the cloth pusher transports the material again and sets the presser into forced vibrations. A disturbing superposition of the above-mentioned types of vibration does not occur.
the sewing machine comprises a needle bar 1 with a clamped sewing needle 2, which can be moved vertically in the usual way. Furthermore, a presser 4 under the pressure of a spring 3 and a cloth pusher 5 belong to the sewing tools.
the material 8 receives its guidance between the presser 5 and a needle plate 7 fastened to a machine bed 6.
the needle plate 7 is out with slots 7 a which the fabric pusher 5 passes through temporarily to rise from the plane of the needle plate 7 and to transport the sewing material 8.
the slider 5 and the needle plate 7 are housed in a recess 9 of the machine bed 6, which is partially limited by a needle plate receiving bar 6 a and also receives a thread gripping device, not shown.
a lockstitch or chain stitch sewing machine can form the basis for the invention shown here.
the needle plate 7 was fastened in such a way that its natural vibration behavior leads to a reduction in the free vibrations of the presser 5 / needle plate 7 system in that the selected arrangement provides less spring stiffness for the needle plate 7.
Fig. 2 shows such a receptacle for a needle plate 7, in which the needle plate receiving bar 6 a on each side of the needle plate 7 between the fastening point. len 10; 11 and a slide plate 12 is provided with an interruption 13.
the part of the needle plate 7 opposite the presser 4 receives a free arrangement in the recess 9 of the machine bed 6, which corresponds to a reduction in the spring stiffness of the needle plate 7 compared to the conventional fixed position of the needle plate. Screws are preferred as the type of fastening.
the cloth pusher 5 passes through the slots 7 a of the needle plate 7 during the sewing process, thereby pressing against the sewing material 8 in order to transport the same, the cloth pusher 5 sets the presser 4 resting on the sewing material 8 in forced vibrations.
the presser 4 is lifted off the throat plate 7.
the sewing tools fabric presser 4 and fabric pusher 5 swing together as a system in this phase.
the cloth presser 4 hits the stitch plate 7 again, with the sewing material 8 in between.
the shape and dimensions of the one-sided free needle plate 7 naturally depend on the occurring or desired vibration conditions.
the interruption 13 of the needle plate receiving bar 6 a or the slots 14; 15 of the throat plate 7 each have different lengths. It is also viable, the sewing machine with interruptions 13 and slots 14; 15 to be provided. Under certain circumstances, a one-sided interruption 13 and / or a slot 14 is sufficient; 15 to achieve the purpose to be achieved.

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Engineering & Computer Science (AREA)
Textile Engineering (AREA)
Sewing Machines And Sewing (AREA)
Inorganic Insulating Materials (AREA)
Massaging Devices (AREA)

EP81100441A 1980-10-03 1981-01-22 Machine à coudre Expired EP0049312B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT81100441T ATE10654T1 (de)	1980-10-03	1981-01-22	Naehmaschine.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DD224305		1980-10-03
DD80224305A DD153401A1 (de)	1980-10-03	1980-10-03	Naehmaschine

Publications (2)

Publication Number	Publication Date
EP0049312A1 true EP0049312A1 (fr)	1982-04-14
EP0049312B1 EP0049312B1 (fr)	1984-12-05

Family

ID=5526577

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP81100441A Expired EP0049312B1 (fr)	1980-10-03	1981-01-22	Machine à coudre

Country Status (4)

Country	Link
EP (1)	EP0049312B1 (fr)
AT (1)	ATE10654T1 (fr)
DD (1)	DD153401A1 (fr)
DE (1)	DE3167520D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
RU2673886C1 (ru) *	2015-06-30	2018-12-03	Дзе Проктер Энд Гэмбл Компани	Способ очистки загрязненных полимеров

Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2500731A (en) *	1945-09-25	1950-03-14	Singer Mfg Co	Throat plate for sewing machines
DE885194C (de) *	1950-09-14	1953-08-03	Union Special Machine Co	Naehmaschine
US2703543A (en) *	1953-02-06	1955-03-08	Emma D Needs	Sewing machine construction
GB985441A (en) *	1962-04-12	1965-03-10	Rimoldi C Spa Virginio	Overlock sewing machine provided with means for attaching elastics and the like to fabric edges
FR90496E (fr) *	1966-07-27	1967-12-22	Rhodiaceta	Procédé et appareil pour la couture d'éléments plats tels notamment que des tissus ou des feuilles
US3373709A (en) *	1965-12-23	1968-03-19	Singer Co	Sewing machine throat plate locating and securing means

1980
- 1980-10-03 DD DD80224305A patent/DD153401A1/de not_active IP Right Cessation
1981
- 1981-01-22 EP EP81100441A patent/EP0049312B1/fr not_active Expired
- 1981-01-22 DE DE8181100441T patent/DE3167520D1/de not_active Expired
- 1981-01-22 AT AT81100441T patent/ATE10654T1/de not_active IP Right Cessation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2500731A (en) *	1945-09-25	1950-03-14	Singer Mfg Co	Throat plate for sewing machines
DE885194C (de) *	1950-09-14	1953-08-03	Union Special Machine Co	Naehmaschine
US2703543A (en) *	1953-02-06	1955-03-08	Emma D Needs	Sewing machine construction
GB985441A (en) *	1962-04-12	1965-03-10	Rimoldi C Spa Virginio	Overlock sewing machine provided with means for attaching elastics and the like to fabric edges
US3373709A (en) *	1965-12-23	1968-03-19	Singer Co	Sewing machine throat plate locating and securing means
FR90496E (fr) *	1966-07-27	1967-12-22	Rhodiaceta	Procédé et appareil pour la couture d'éléments plats tels notamment que des tissus ou des feuilles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
RU2673886C1 (ru) *	2015-06-30	2018-12-03	Дзе Проктер Энд Гэмбл Компани	Способ очистки загрязненных полимеров

Also Published As

Publication number	Publication date
DD153401A1 (de)	1982-01-06
DE3167520D1 (en)	1985-01-17
EP0049312B1 (fr)	1984-12-05
ATE10654T1 (de)	1984-12-15

Legal Events

Date	Code	Title	Description
1982-02-13	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
1982-04-14	AK	Designated contracting states	Designated state(s): AT BE CH DE FR GB IT SE
1982-11-10	17P	Request for examination filed	Effective date: 19820901
1984-08-14	ITF	It: translation for a ep patent filed
1984-10-05	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1984-12-05	AK	Designated contracting states	Designated state(s): AT BE CH DE FR GB IT LI SE
1984-12-05	REF	Corresponds to:	Ref document number: 10654 Country of ref document: AT Date of ref document: 19841215 Kind code of ref document: T
1985-01-17	REF	Corresponds to:	Ref document number: 3167520 Country of ref document: DE Date of ref document: 19850117
1985-02-01	ET	Fr: translation filed
1985-10-09	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1985-10-09	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1985-12-11	26N	No opposition filed
1989-01-31	ITTA	It: last paid annual fee
1989-11-03	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19891103 Year of fee payment: 10
1989-11-13	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: AT Payment date: 19891113 Year of fee payment: 10
1989-11-16	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: BE Payment date: 19891116 Year of fee payment: 10
1989-11-22	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: SE Payment date: 19891122 Year of fee payment: 10
1989-11-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19891130 Year of fee payment: 10
1989-12-13	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19891213 Year of fee payment: 10
1990-01-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: CH Payment date: 19900131 Year of fee payment: 10
1991-01-22	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Effective date: 19910122 Ref country code: AT Effective date: 19910122
1991-01-23	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SE Effective date: 19910123
1991-01-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: CH Effective date: 19910131 Ref country code: LI Effective date: 19910131 Ref country code: BE Effective date: 19910131
1991-09-18	GBPC	Gb: european patent ceased through non-payment of renewal fee
1991-09-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Effective date: 19910930
1991-09-30	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL
1991-11-29	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST
1992-07-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Effective date: 19920701
1995-01-31	EUG	Se: european patent has lapsed	Ref document number: 81100441.5 Effective date: 19910910

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DE3400206C2 (de)	1987-01-08	Verfahren zum Betrieb einer Nähmaschine, insbesondere einer Vielnadelnähmaschine
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EP0049312B1 (fr)	1984-12-05	Machine à coudre
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DE4420187C2 (de)	2001-10-11	Vorrichtung zur Nahtanfangssicherung durch Einnähen der Fadenkette an Ein- und Zweinadel-Überwendlich-Nähmaschinen
DE3522498A1 (de)	1986-02-27	Vorrichtung zur fuehrung textiler arbeitsstuecke
EP0014259A1 (fr)	1980-08-20	Dispositif de guidage de l'ouvrage
DE3308161C2 (fr)	1987-12-17
DE1485157B2 (de)	1976-10-21	Zickzack-naehmaschine
DE2439214C3 (de)	1978-02-16	Spulengehäusehaltevorrichtung für Doppelsteppstichnähmaschinen mit umlaufendem Greifer

EP0049312A1 - Machine à coudre - Google Patents

Info

Links

Images

Classifications

Definitions

Landscapes

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

Family

ID=5526577

Family Applications (1)

Country Status (4)

Cited By (1)

Citations (6)

Patent Citations (6)

Cited By (1)

Also Published As

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