A toroidal continuously variable transmission including at least one containment body covering a target disc that is at least one of an input disc and an output disc. 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.

A toroidal continuously variable transmission including at least one containment body covering a target disc that is at least one of an input disc and an output disc. 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.

A skew limiter for a toric-drive CVT is described herein. The skew limiter proposes a shaped piece that limits the skew angle to a known angle notwithstanding the tilt angle of the rollers.

A skew limiter for a toric-drive CVT is described herein. The skew limiter proposes a shaped piece that limits the skew angle to a known angle notwithstanding the tilt angle of the rollers.

Traction transmission having a first and a second component transmission (26a, b) which are of mirror-symmetrical construction with respect to one another and are arranged axially adjacently in a housing (12), in each case comprisingan axially inner drive friction disc (28a, b) and an axially outer complementary friction disc (32a, b) which are arranged coaxially and can be rotated relative to one another about a transmission central axis, anda set of friction rollers (40) which make non-positive contact between the friction discs (28a, b, 32a, b) and are mounted such that they can be rotated about in each case one roller axle (44), wherein the roller axles (44) are pivotably mounted in a manner which is spaced apart radially from the transmission central axis on a star-shaped spider (38a, b) which can be moved ax Lilly in relation to the transmission central axis, wherein the spiders (38a, b) are arranged on a common spider sleeve (50) and are coupled to one another at a variable spacing via an axially extending thread pairing (52), whereinthe complementary friction discs (32a, b) are arranged fixedly on a common output shaft (34) which is mounted in the housing such that it is fixed axially and can be rotated, the spacing of the drive friction discs (28a, b) from one another can be varied by means of a spacing setting device (60), andthe spider sleeve (50) is mounted such that it can be displaced axially relative to the housing (12), wherein the first spider (38a) which is assigned to the first component transmission (26a) is connected fixedly to the housing (12) so as to rotate with it, the second spider (38b) which is assigned to the second component transmission (26b) can be rotated relative to the housing (12) by means of an angular position setting device (54b, 58), and the thread pairing (52) which couples the spiders (38a, b) is set up in such a way that a relative rotation of the spiders (38a, b) brings about a change in the spacing thereof.

Traction transmission having a first and a second component transmission (26a, b) which are of mirror-symmetrical construction with respect to one another and are arranged axially adjacently in a housing (12), in each case comprisingan axially inner drive friction disc (28a, b) and an axially outer complementary friction disc (32a, b) which are arranged coaxially and can be rotated relative to one another about a transmission central axis, anda set of friction rollers (40) which make non-positive contact between the friction discs (28a, b, 32a, b) and are mounted such that they can be rotated about in each case one roller axle (44), wherein the roller axles (44) are pivotably mounted in a manner which is spaced apart radially from the transmission central axis on a star-shaped spider (38a, b) which can be moved ax Lilly in relation to the transmission central axis, wherein the spiders (38a, b) are arranged on a common spider sleeve (50) and are coupled to one another at a variable spacing via an axially extending thread pairing (52), whereinthe complementary friction discs (32a, b) are arranged fixedly on a common output shaft (34) which is mounted in the housing such that it is fixed axially and can be rotated, the spacing of the drive friction discs (28a, b) from one another can be varied by means of a spacing setting device (60), andthe spider sleeve (50) is mounted such that it can be displaced axially relative to the housing (12), wherein the first spider (38a) which is assigned to the first component transmission (26a) is connected fixedly to the housing (12) so as to rotate with it, the second spider (38b) which is assigned to the second component transmission (26b) can be rotated relative to the housing (12) by means of an angular position setting device (54b, 58), and the thread pairing (52) which couples the spiders (38a, b) is set up in such a way that a relative rotation of the spiders (38a, b) brings about a change in the spacing thereof.

Provided is a pressing device for toroidal continuously variable transmission capable of reducing hysteresis that occurs between torque and pressing force. An intermediate sliding member 27 is provided in at least one location of a portion between an end surface on the outside in the radial direction of the retainer 13 of the roller 14 arranged on the outermost side in the radial direction and an inside surface of the pocket 25 on the outside in the radial direction, and a portion between an end surface on the outside in the radial direction of the retainer 13 of one roller 14 of adjoining rollers 14 in the radial direction and an end surface on the inside in the radial direction of the retainer 13 of another roller 14. As a result, the contact area of a sliding contact portion 32 is made smaller than in a case where an intermediate sliding member 27 is not provided.

Provided is a pressing device for toroidal continuously variable transmission capable of reducing hysteresis that occurs between torque and pressing force. An intermediate sliding member 27 is provided in at least one location of a portion between an end surface on the outside in the radial direction of the retainer 13 of the roller 14 arranged on the outermost side in the radial direction and an inside surface of the pocket 25 on the outside in the radial direction, and a portion between an end surface on the outside in the radial direction of the retainer 13 of one roller 14 of adjoining rollers 14 in the radial direction and an end surface on the inside in the radial direction of the retainer 13 of another roller 14. As a result, the contact area of a sliding contact portion 32 is made smaller than in a case where an intermediate sliding member 27 is not provided.

A planetary variator applicable in a variable transmission for realizing a variable speed and torque ratio includes: a ring wheel; at least two planet wheels, the at least two planet wheels including a shaft portion and a wheel portion that is rotatable about the shaft portion, the shaft portion having a longitudinal central axis, the longitudinal central axis also being the rotation axis of the wheel portion, each planet wheel being freely rotatable about a hinge axis that is oriented essentially perpendicularly with respect to a plane defined by the common central axis and the rotation axis of the wheel portion of the planet wheel; and a sun wheel. The ring wheel and the sun wheel are axisymmetric bodies positioned with respect to a common central symmetry axis. Interaction between the ring wheel, the at least two planet wheels, and the sun wheel takes place through a rolling motion.

A planetary variator applicable in a variable transmission for realizing a variable speed and torque ratio includes: a ring wheel; at least two planet wheels, the at least two planet wheels including a shaft portion and a wheel portion that is rotatable about the shaft portion, the shaft portion having a longitudinal central axis, the longitudinal central axis also being the rotation axis of the wheel portion, each planet wheel being freely rotatable about a hinge axis that is oriented essentially perpendicularly with respect to a plane defined by the common central axis and the rotation axis of the wheel portion of the planet wheel; and a sun wheel. The ring wheel and the sun wheel are axisymmetric bodies positioned with respect to a common central symmetry axis. Interaction between the ring wheel, the at least two planet wheels, and the sun wheel takes place through a rolling motion.