A transmission belt is formed by a plurality of elements each having: a body portion including a saddle surface that contacts an inner peripheral surface of an endless ring and a pair of pillar portions that are extended outward in the radial direction of the transmission belt from both lateral sides of the saddle surface; a first surface that is formed on one side of the body portion in the circumferential direction of the transmission belt and a second surface that is formed on the other side of the body portion in the circumferential direction of the transmission belt; and rocking edge portions that are formed at both lateral ends of the first surface so as to be separated from each other and that act as a fulcrum when adjacent ones of the elements contact each other and rotate relative to each other. The rocking edge portions are formed by a curved surface so as to have a width from a position outside the saddle surface to a position inside the saddle surface in the radial direction of the transmission belt. A portion connecting the first surface and the saddle surface is formed so as to be located closer to the second surface than the rocking edge portions are in the circumferential direction of the transmission belt.

A transmission belt is formed by a plurality of elements each having: a body portion including a saddle surface that contacts an inner peripheral surface of an endless ring and a pair of pillar portions that are extended outward in the radial direction of the transmission belt from both lateral sides of the saddle surface; a first surface that is formed on one side of the body portion in the circumferential direction of the transmission belt and a second surface that is formed on the other side of the body portion in the circumferential direction of the transmission belt; and rocking edge portions that are formed at both lateral ends of the first surface so as to be separated from each other and that act as a fulcrum when adjacent ones of the elements contact each other and rotate relative to each other. The rocking edge portions are formed by a curved surface so as to have a width from a position outside the saddle surface to a position inside the saddle surface in the radial direction of the transmission belt. A portion connecting the first surface and the saddle surface is formed so as to be located closer to the second surface than the rocking edge portions are in the circumferential direction of the transmission belt.

Transverse segments (10) for a drive belt (6) for a belt-and-pulley-type continuously variable transmission include a row of these transverse segments (10) mounted on a stack (9) of several, mutually nested rings. The transverse segments (10) are provided with a protrusion (40) that protrudes from a front surface (11) thereof and with a corresponding cavity (41) that is provided in a back surface (12) thereof. An offset is provided between the protrusion (40) and the cavity (41) in the radial direction of the drive belt (6), such that in the row of transverse segments (10) in the drive belt (6) these will be inclined backwards by the forced insertion of the protrusion (40) into the cavity (41).

Transverse segments (10) for a drive belt (6) for a belt-and-pulley-type continuously variable transmission include a row of these transverse segments (10) mounted on a stack (9) of several, mutually nested rings. The transverse segments (10) are provided with a protrusion (40) that protrudes from a front surface (11) thereof and with a corresponding cavity (41) that is provided in a back surface (12) thereof. An offset is provided between the protrusion (40) and the cavity (41) in the radial direction of the drive belt (6), such that in the row of transverse segments (10) in the drive belt (6) these will be inclined backwards by the forced insertion of the protrusion (40) into the cavity (41).

A continuously variable transmission includes a transmission belt including a plurality of elements and a ring and wound around V-grooves of first and second pulleys, each of the plurality of elements including a body portion having a saddle surface and a pair of pillar portions extended from the body portion so as to be located on both sides in a lateral direction of the saddle surface, and the ring being disposed between the pair of pillar portions of each of the plurality of elements. When one of the first and second pulleys has its minimum groove width, at least a part in a thickness direction of the ring wound around the one of the first and second pulleys protrudes radially outward beyond an outermost circumference of a surface of the V-groove of the one of the first and second pulleys.

A continuously variable transmission includes a transmission belt including a plurality of elements and a ring and wound around V-grooves of first and second pulleys, each of the plurality of elements including a body portion having a saddle surface and a pair of pillar portions extended from the body portion so as to be located on both sides in a lateral direction of the saddle surface, and the ring being disposed between the pair of pillar portions of each of the plurality of elements. When one of the first and second pulleys has its minimum groove width, at least a part in a thickness direction of the ring wound around the one of the first and second pulleys protrudes radially outward beyond an outermost circumference of a surface of the V-groove of the one of the first and second pulleys.

A metal belt manufacturing method includes: a step of inserting a retention member (30, 130) in an ended band shape into a clearance between an outer peripheral surface (12) of a ring (10) and an inner surface of a visor portion (23) which faces a base portion (21) in a recessed portion (25) and disposing the retention member (30, 130) circumferentially along the outer peripheral surface (12) of the ring (10); and a step of coupling the starting end portion and the terminal end portion of the retention member (30, 130) in an ended band shape to each other.

A metal belt manufacturing method includes: a step of inserting a retention member (30, 130) in an ended band shape into a clearance between an outer peripheral surface (12) of a ring (10) and an inner surface of a visor portion (23) which faces a base portion (21) in a recessed portion (25) and disposing the retention member (30, 130) circumferentially along the outer peripheral surface (12) of the ring (10); and a step of coupling the starting end portion and the terminal end portion of the retention member (30, 130) in an ended band shape to each other.

A continuously variable transmission includes a transmission belt including a plurality of elements each including a pair of pillar portions and a ring arranged between the pair of pillar portions of each of the plurality of elements, and a lubricant supply portion arranged on an inner side of the transmission belt in a radial direction. Each of the plurality of elements further includes a pair of rocking edge portions formed away from each other in a width direction, and a non-contact portion extending between the pair of rocking edge portions in the width direction along a saddle surface. A clearance that communicates the non-contact portion and a region on an inner side in the radial direction with respect to the transmission belt is formed between the elements included in a looped portion of the transmission belt around a first or second pulley.

A continuously variable transmission includes a transmission belt including a plurality of elements each including a pair of pillar portions and a ring arranged between the pair of pillar portions of each of the plurality of elements, and a lubricant supply portion arranged on an inner side of the transmission belt in a radial direction. Each of the plurality of elements further includes a pair of rocking edge portions formed away from each other in a width direction, and a non-contact portion extending between the pair of rocking edge portions in the width direction along a saddle surface. A clearance that communicates the non-contact portion and a region on an inner side in the radial direction with respect to the transmission belt is formed between the elements included in a looped portion of the transmission belt around a first or second pulley.