US 7,506,668 B2
Device for modulating a first rotational motion of an input shaft to a second, different from the first, rotational motion of an output shaft in textile machines
Bram Vanderjeugt, Ieper (Belgium); Matthew Theobald, Consett (United Kingdom); and James Anthony Graham, Weardale (United Kingdom)
Assigned to N.V. Michel Van de Wiele, Kortrijk/Marke (Belgium)
Filed on Apr. 13, 2006, as Appl. No. 11/403,556.
Claims priority of application No. 2005/0196 (BE), filed on Apr. 13, 2005.
Prior Publication US 2006/0231274 A1, Oct. 19, 2006
Int. Cl. D03C 5/04 (2006.01); D03C 5/06 (2006.01); D03C 5/00 (2006.01)
U.S. Cl. 139—80  [139/58; 139/79; 139/81] 21 Claims
OG exemplary drawing
 
1. Device for modulating a first rotational motion of an input shaft to a second, different from the first, rotational motion of an output shaft in textile machines, comprising:
a fixed complementary cam provided with at least two cam profiles;
at least one cam follower, which is linked to the input and the output shafts and which is provided with at least two contact rollers, each following a different cam profile, because of which the said cam followers are performing a rocking motion,
wherein the said cam profiles are internal cam profiles.