F16G5/16

Transmission belt
10533631 · 2020-01-14 · ·

A transmission belt includes a belt body, two spaced-apart mounting axles and a reinforcing unit. The belt body forms a loop that defines an inner space. The mounting axles and the reinforcing unit are embedded in the belt body. The reinforcing unit includes at least one cord that includes a plurality of winding segments and a plurality of connecting segments. The winding segments alternately extend around the mounting axles. Each of the connecting segments interconnects a corresponding pair of the winding segments that respectively extend around the mounting axles.

Transmission belt
10533631 · 2020-01-14 · ·

A transmission belt includes a belt body, two spaced-apart mounting axles and a reinforcing unit. The belt body forms a loop that defines an inner space. The mounting axles and the reinforcing unit are embedded in the belt body. The reinforcing unit includes at least one cord that includes a plurality of winding segments and a plurality of connecting segments. The winding segments alternately extend around the mounting axles. Each of the connecting segments interconnects a corresponding pair of the winding segments that respectively extend around the mounting axles.

ELEMENT DESIGNING METHOD AND POWER TRANSFER BELT

In an element of a power transfer belt to be wound around a primary pulley and a secondary pulley of a continuously variable transmission to transfer torque, the distance from a boundary line between a surface positioned on the outer peripheral side of the power transfer belt with respect to a rocking edge portion and the rocking edge portion to a saddle surface is determined from the slip amount due to micro slip which is relative slipping between the element and the primary pulley caused when the primary pulley pushes out the power transfer belt toward the secondary pulley, and the angular speed of the element and the angular speed of a ring in a range in which the power transfer belt is wound around the secondary pulley.

ELEMENT DESIGNING METHOD AND POWER TRANSFER BELT

In an element of a power transfer belt to be wound around a primary pulley and a secondary pulley of a continuously variable transmission to transfer torque, the distance from a boundary line between a surface positioned on the outer peripheral side of the power transfer belt with respect to a rocking edge portion and the rocking edge portion to a saddle surface is determined from the slip amount due to micro slip which is relative slipping between the element and the primary pulley caused when the primary pulley pushes out the power transfer belt toward the secondary pulley, and the angular speed of the element and the angular speed of a ring in a range in which the power transfer belt is wound around the secondary pulley.

LINKAGE FOR THE TRANSMISSION MECHANISMS
20190383365 · 2019-12-19 ·

Transmission linkage (2) for a continuously variable transmission mechanism (1) comprising at least one wheel (3, 4, 5) comprising two rotating flanges (31, 32, 41, 42, 51, 52), said linkage comprising: a first set of first links (210, 210, 410, 410, 510, 510, 700, 800, 900) having bearing surfaces (2106, 2107, 2108, 2109) able to come into contact between two flanges; a second set of second links (212, 412, 512) hinged to one another to form a closed-loop chain, the number of second links being equal to the number of first links; according to the invention, each link of one of the sets comprises a meshing pin (2120, 2120, 2120, 4103, 505, 600, 632, 642) and each link of the other set comprises at least one closed reception housing (2110, 2110 415, 515, 615, 621, 631, 641, 651) comprising meshing walls (2111, 624) engaging with said meshing pin via a meshing connection, said meshing connection allowing each first link to move with respect to the second link with which it collaborates, at least in a longitudinal direction (L).

A TRANSVERSE SEGMENT FOR A DRIVE BELT FOR A CONTINUOUSLY VARIABLE TRANSMISSION

Disclosed is a transverse segment for a drive belt with a ring stack and with a number of transverse segments attached along the circumference of the ring stack, which transverse segment at least includes a base portion and two pillar portions, which pillar portions extend from the sides of the base portion in height direction, between which pillar portion an upper side of the base portion defines a support surface for supporting the ring stack. At least one pillar portion is provided with a hook part that extends in width direction in the general direction of the respective other pillar portion and whereof a bottom surface that is oriented in the general direction of the support surface extends at an angle relative to the width direction.

A TRANSVERSE SEGMENT FOR A DRIVE BELT FOR A CONTINUOUSLY VARIABLE TRANSMISSION

Disclosed is a transverse segment for a drive belt with a ring stack and with a number of transverse segments attached along the circumference of the ring stack, which transverse segment at least includes a base portion and two pillar portions, which pillar portions extend from the sides of the base portion in height direction, between which pillar portion an upper side of the base portion defines a support surface for supporting the ring stack. At least one pillar portion is provided with a hook part that extends in width direction in the general direction of the respective other pillar portion and whereof a bottom surface that is oriented in the general direction of the support surface extends at an angle relative to the width direction.

ENDLESS METAL BELT AND MANUFACTURING METHOD THEREFOR

An endless metal belt having an excellent abrasion resistance and a method for manufacturing such endless metal belts, capable of sufficiently reducing a tensile stress related to a metal ring in the innermost layer are provided. An endless metal belt includes a belt member formed by laminating a plurality of metal rings; and an element supported by the belt member, in which among the plurality of metal rings, a metal ring in an innermost layer is formed by a maraging steel plate, and another metal ring includes a nitride layer on its surface, and has a specific chemical composition; a tensile strength of the another metal ring is 1,700 MPa or higher; and a surface hardness of the nitride layer is HV800 to HV950.

ENDLESS METAL BELT AND MANUFACTURING METHOD THEREFOR

An endless metal belt having an excellent abrasion resistance and a method for manufacturing such endless metal belts, capable of sufficiently reducing a tensile stress related to a metal ring in the innermost layer are provided. An endless metal belt includes a belt member formed by laminating a plurality of metal rings; and an element supported by the belt member, in which among the plurality of metal rings, a metal ring in an innermost layer is formed by a maraging steel plate, and another metal ring includes a nitride layer on its surface, and has a specific chemical composition; a tensile strength of the another metal ring is 1,700 MPa or higher; and a surface hardness of the nitride layer is HV800 to HV950.

ENDLESS METAL RING AND METHOD OF PRODUCING THE SAME

A method of producing an endless metal ring includes welding ends of a maraging steel plate such that the maraging steel plate has a ring shape, annealing the maraging steel plate with the ring shape in a furnace at 845 C. or higher, and nitriding the annealed maraging steel plate, wherein, during the annealing, a dew point temperature indicating an amount of water in the furnace is adjusted such that a value of the dew point temperature [ C.] is equal to or higher than a value obtained by subtracting 35 from time [min] at an annealing temperature of 845 C. or higher.