Method and apparatus for making pile fabric Patent #: 3982978
ApplicationNo. 06/674732 filed on 11/26/1984
US Classes:428/88, Edge feature or configured or discontinuous surface156/178, Plural filaments156/72, Setting or embedding tufts or discrete pile elements onto backing (e.g., rugs, brushes, etc.)156/73.2, Rod, strand, or filament428/94Continuous strand with adhesive bond to backing
ExaminersPrimary: Wityshyn, Michael G.
Attorney, Agent or Firm
International ClassesD04H 11/00 (20060101)
D04H 11/04 (20060101)
Foreign Application Priority Data1981-12-03 CH
AbstractA machine for producing pile fabric comprises a sonotrode (1) , a matrix (4) of tubes (5) bringing threads (10) onto a support sheet (7) for the purpose of welding rows of loops to the surface of this sheet. The matrix (4) is guided between slides (6) which are parallel to the longitudinal axes of the tubes (5) and perpendicularly to the surface of application of the sonotrode (1) vibrations. A driving mechanism (13, 14, 15) periodically brings the extremities of the tubes (5) from which the threads leave against the sonotrode (1) by pressing the base of a row of loops and the support sheet (7) against the sonotrode in order to cause them to be welded together.