US 12,292,087 B2
Pair of connectable portions for connecting a transmission shaft and a roller
Michele Del Borrello, Vasto (CH); and Ivan Prestia, Calderara di Reno (IT)
Assigned to Philip Morris Products S.A., Neuchatel (CH)
Appl. No. 16/966,077
Filed by PHILIP MORRIS PRODUCTS S.A., Neuchatel (CH)
PCT Filed Jan. 23, 2019, PCT No. PCT/EP2019/051661
§ 371(c)(1), (2) Date Jul. 30, 2020,
PCT Pub. No. WO2019/154625, PCT Pub. Date Aug. 15, 2019.
Claims priority of application No. 18155884 (EP), filed on Feb. 8, 2018.
Prior Publication US 2020/0362918 A1, Nov. 19, 2020
Int. Cl. F16D 1/092 (2006.01); A24B 3/14 (2006.01)
CPC F16D 1/092 (2013.01) [A24B 3/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A transmission shaft and a roller comprising a pair of connectable portions for connecting the transmission shaft and the roller to be driven by torque exerted through the transmission shaft, the transmission shaft and the roller attached by a central screw threadably engaging a central bore defined by the transmission shaft;
the pair of connectable portions comprising a male portion provided on one of the transmission shaft and roller and a complementary female portion provided on the other of the roller and transmission shaft,
the male portion having a longitudinal axis of rotation and tapering inwardly from a proximal end to a distal end by an angle of between 2.5 and 25 degrees,
wherein the male portion has a non-circular cross section, wherein the central bore extends through and along the entire length of the transmission shaft.