Hollow spindle, in particular, hollow spindle used for making elastic covering thread

Application Number: 00108118
Application Date: 2000.04.28
Publication Number: 1271787
Publication Date: 2000.11.01
Priority Information: 1999/4/28 DE 19919232.4
International: D01H7/88
Applicant(s) Name: Hamel AG
Inventor(s) Name: N. Haintzle;H. Duer
Patent Agency Code: 11038
Patent Agent: zheng xiuzhe
Abstract A hollow spindle, in particular for the manufacture of elastic twisted yarns, has a thread channel (9) extending coaxially with respect to the axis of the spindle (A), through which thread channel is axially moved a yarn (6), in particular an elastic core yarn. The thread channel (9) has ribs (10) on its inner surface (8a), which extend in peripheral direction or helically and project inwardly over the surface (8a), so that the yarn (6) running through the thread channel (9) rests only pointlike on the ribs, otherwise, however, is supported at a distance from the inner surface (8a).