Global Patent Index - EP 3971335 B1

EP 3971335 B1 20240327 - DEVICE FOR A SEWING MACHINE AND OPERATING METHOD

Title (en)

DEVICE FOR A SEWING MACHINE AND OPERATING METHOD

Title (de)

VORRICHTUNG FÜR EINE NÄHMASCHINE UND BETRIEBSMETHODE

Title (fr)

DISPOSITIF POUR MACHINE À COUDRE ET PROCÉDÉ D'OPÉRATION

Publication

EP 3971335 B1 20240327 (EN)

Application

EP 20743234 A 20200513

Priority

  • PT 11551919 A 20190513
  • IB 2020054542 W 20200513

Abstract (en)

[origin: EP3971335A1] The present disclosure describes a device and a method for controlling the quality of a textile seam for a sewing machine comprising: a rear presser foot with compensation comprising two forks for pressing the workpiece being sewn, a fork for each side of the seam after its passage through the needle seam area, wherein said forks are vertically and independently oscillating; a sensor configured to detect the height of a first fork; a signal processor configured to detect whether the height detected by the sensor when the first fork is pressing the workpiece is above a predetermined value of excessive thickness.

IPC 8 full level

D05B 29/08 (2006.01)

CPC (source: EP)

D05B 29/08 (2013.01)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated validation state (EPC)

MA TN

DOCDB simple family (publication)

EP 3971335 A1 20220323; EP 3971335 B1 20240327; WO 2020230062 A1 20201119

DOCDB simple family (application)

EP 20743234 A 20200513; IB 2020054542 W 20200513