EP 2664700 A1 20131120 - Weaving machine with cam disc for homogenising warp tension
Title (en)
Weaving machine with cam disc for homogenising warp tension
Title (de)
Webmaschine mit Kurvenscheibe zum Vergleichmäßigen der Kettfadenspannung
Title (fr)
Métiers à tisser avec came pour égaliser la tension des fils de chaîne
Publication
Application
Priority
IN 1618CH2012 A 20120424
Abstract (en)
The present invention relates to heald frames movement using a modified cam mechanism in weaving machines. The modified cam mechanism having at least two protrusions for lifting the heald frames such that shed formed between plurality of warp yarns for passage of the weft carrier on a weaving loom remains in lower to middle region of the shed during beating up operation. During beating up operation at pre-determined angle of the modified cam, the warp yarns are loaded equally and oscillating backrest is synchronized to take up difference in length of warp yarns as the heald frame moves irrespective of the weave. Further, the present invention relates to an improvement in the weave ability of yarns with near zero elasticity at high speeds without creating high peak tensions.
IPC 8 full level
D03C 5/04 (2006.01); D03D 49/14 (2006.01)
CPC (source: EP)
D03C 5/04 (2013.01); D03D 49/14 (2013.01)
Citation (applicant)
- US 6135163 A 20001024 - WAHHOUD ADNAN [DE], et al
- GB 290382 A 19280517 - RENNY FRANKLAND
- GB 1063688 A 19670330 - TRIPETTE & RENAUD
- GB 1077296 A 19670726 - CLUTSOM AND KEMP LTD
- IN 14KO2008 A
Citation (search report)
- [X] DE 102007015411 A1 20081002 - GROZ BECKERT KG [DE]
- [Y] US 2727538 A 19551220 - ADOLF WIDMER
- [Y] US 3567354 A 19710302 - FRANSSEN THEODORUS, et al
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 extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2664700 A1 20131120; CN 103556347 A 20140205; JP 2013227715 A 20131107
DOCDB simple family (application)
EP 13164842 A 20130423; CN 201310143191 A 20130423; JP 2013088965 A 20130422