Warp tension controlling apparatus in a weaving machine for weaving a pile fabric

(19)

(11)

EP 1 923 493 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	22.07.2009 Bulletin 2009/30

(43)	Date of publication A2:
	21.05.2008 Bulletin 2008/21

(21)	Application number: 07119298.3

(22)	Date of filing: 25.10.2007

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International Patent Classification (IPC):

D03D 39/22^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA HR MK RS

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Priority:

17.11.2006 JP 2006310909

(71)	Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
	Kariya-shi, Aichi-ken (JP)

(72)	Inventors:
	SAKAI, Yosuke Kariya-shi Aichi 448-8671 (JP) IWANO, Yoshimi Kariya-shi Aichi 448-8671 (JP) MURAKAMI, Yasutaka Kariya-shi Aichi 448-8671 (JP)

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

(54)	Warp tension controlling apparatus in a weaving machine for weaving a pile fabric

(57) A warp tension controlling apparatus in a weaving machine for weaving a pile fabric, the waving machine includes a pile warp beam (22) and ground warp beam (1) in which the weaving machine performs negative easing of one or more ground warps (T) by swinging a biased tension roller (3), characterized in that the apparatus includes: a first biasing portion for providing a first biasing force to the tension roller (3) during a pile weaving step; and a second biasing portion for providing a second biasing force to the tension roller (3) during a border weaving step performed between the pile weaving steps, in addition to the first biasing force by the first biasing portion.

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