US 12,253,142 B2
Toroidal continuously variable transmission
Kenji Komatsu, Kobe (JP); Hideyuki Imai, Kobe (JP); Kazuhiko Irie, Akashi (JP); Toru Aibe, Kobe (JP); and Keigo Maehata, Kobe (JP)
Assigned to KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe (JP)
Appl. No. 18/034,755
Filed by KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe (JP)
PCT Filed Nov. 5, 2021, PCT No. PCT/JP2021/040779
§ 371(c)(1), (2) Date May 1, 2023,
PCT Pub. No. WO2022/137831, PCT Pub. Date Jun. 30, 2022.
Claims priority of application No. 2020-213591 (JP), filed on Dec. 23, 2020.
Prior Publication US 2023/0407950 A1, Dec. 21, 2023
Int. Cl. F16H 15/38 (2006.01); B64D 41/00 (2006.01)
CPC F16H 15/38 (2013.01) [B64D 41/00 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A toroidal continuously variable transmission comprising:
an input disc including a speed change surface;
an output disc including a speed change surface;
a power roller located between the speed change surface of the input disc and the speed change surface of the output disc so as to be tiltable;
at least one containment body covering a target disc that is at least one of the input disc and the output disc; and
a housing that houses the input disc, the output disc, the power roller, and the containment body, wherein:
the containment body includes a ring that covers an outer peripheral surface of the target disc so as to be spaced apart from the outer peripheral surface of the target disc in a radial direction;
a maximum dimension of the ring in an axial direction is larger than a maximum dimension of the outer peripheral surface of the target disc in the axial direction;
the power roller is located in a predetermined phase region around the axial direction;
the ring includes
a first section corresponding to the phase region of the power roller around the axial direction; and
a second section that is a phase region around the axial direction other than the first section, the second section corresponding to no power roller;
the containment body further includes a guard located at one side of the ring which is close to the power roller in the axial direction; and
the guard is located at the second section of the ring,
wherein:
the at least one containment body comprises
a first containment body covering the input disc and
a second containment body covering the output disc; and
the first containment body and the second containment body are connected to each other by a coupling body.