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2 202 017

(13)

C1

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IPC

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Application

2002111439/12, 2002-04-30

(24)

Start date

2002-04-30

(22)

Actual filing date

2002-04-30

(45)

Published

2003-04-10

(72)

Inventor

Umjarov R.K.Komarenko G.A.Zakharov A.V.Nikitin V.A.Trantina T.I.Tsaplin V.M.Obozov V.A.

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Bytovykh Shvejnykh Mashin"

NEEDLE THREAD TENSION REGULATOR FOR SEWING MACHINE Russian patent published in 2003 - IPC

Abstract RU 2202017 C1

FIELD: mechanical engineering, in particular domestic equipment. SUBSTANCE: thread is conventionally charged between washers positioned on rod and pressed by upper end of flat profiled spring cooperating with its mid portion with cam. Regulator is equipped with thread tension relieving device made in the form of bar pivotally attached to lever for manual lifting of grip. Fork is positioned on upper end of bar. Upon lifting of said lever, bar comes into engagement through projection thereon with bar retractor arranged in front part of sewing machine, and fork retracts spring through releasing bushing put onto rod to release washer. When thread guide normally fixed on bar is in operating position in the process of sewing, it provides complete enclosure of thread between washers. EFFECT: simplified construction and enhanced reliability in operation. 7 cl, 3 dwg

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RU 2 202 017 C1

Authors

Umjarov R.K.

Komarenko G.A.

Zakharov A.V.

Nikitin V.A.

Trantina T.I.

Tsaplin V.M.

Obozov V.A.

Dates

2003-04-10—Published

2002-04-30—Filed

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