(19)
(11) EP 3 219 838 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.10.2017 Bulletin 2017/42

(43) Date of publication A2:
20.09.2017 Bulletin 2017/38

(21) Application number: 17158313.1

(22) Date of filing: 28.02.2017
(51) International Patent Classification (IPC): 
D03D 47/30(2006.01)
(84) Designated Contracting States:
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 Extension States:
BA ME
Designated Validation States:
MA MD

(30) Priority: 16.03.2016 JP 2016052236

(71) Applicant: Kabushiki Kaisha Toyota Jidoshokki
Kariya-shi, Aichi 448-8671 (JP)

(72) Inventors:
  • MAKINO, Yoichi
    Kariya-shi, Aichi 448-8671 (JP)
  • OKUDA, Taijirou
    Kariya-shi, Aichi 448-8671 (JP)

(74) Representative: TBK 
Bavariaring 4-6
80336 München
80336 München (DE)

   


(54) WEFT DETECTION METHOD AND WEFT DETECTION DEVICE FOR JET LOOM


(57) A CPU adds pulse generation angles to pulse signals input by a photoelectric detector and forms a pulse generation angle string with the pulse generation angles of the input pulse signals. The pulse generation angle string formed by the CPU for each pick is stored in a memory. The CPU also functions as an average weft arrival timing calculating means, a first tentative weft arrival timing setting means, a first weft arrival timing determining means, a second tentative weft arrival timing setting means, and a second weft arrival timing determining means.







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