Pair of connectable portions for connecting a transmission shaft and a roller
AssigneePhilip Morris Products S.A.
InventorsMichele Del Borrello, Ivan Prestia
Life of this patent
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Abstract
A transmission shaft and a roller comprising a pair of connectable portions (M, F) for connecting a transmission shaft (5, 8) and a roller (4, 7) to be driven by torque exerted through the transmission shaft (5, 8). The pair of connectable portions (M, F) comprise a male portion (M) provided on one of the transmission shaft (5, 8) and roller (4, 7) and a complementary female portion (F) provided on the other of the roller (4, 7) and transmission shaft (5, 8). The male portion (M) has a longitudinal axis of rotation (X) and tapers inwardly from a proximal end to a distal end. The male portion (M) has a non-circular cross section.
Claims20
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.
A method of forming a connection between a transmission shaft and a roller to be driven by torque exerted through the transmission shaft, the method comprising:
- axially aligning a male portion provided on one of the transmission shaft and roller with a complementary female portion provided on the other of the roller and transmission shaft;
- moving the transmission shaft and roller relatively toward one another axially, such that the male portion engages within the complementary female portion;
- and
- attaching the transmission shaft and the roller using a central screw threadably engaging a central bore defined by the transmission shaft;
- wherein the male portion has a longitudinal axis of rotation, tapers inwardly from a proximal end to a distal end by an angle of between 2.5 and 25 degrees and has a non-circular cross section, wherein the central bore extends through and along the entire length of the transmission shaft.
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 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 transmission shaft and the roller attachable by a central screw threadably engaging a central bore defined by the transmission shaft, and
- the male portion having a longitudinal axis of rotation and tapering inwardly from a proximal end to a distal end,
- wherein the male portion has a non-circular cross section, and wherein the central bore extends through and along the entire length of the transmission shaft.
Dependencies are inferred from the claim text.