Metal belt for belt-driven continuously variable transmission
AssigneeHonda Motor Co., Ltd.
InventorToru Yagasaki
Life of this patent
Estimating the term…
Abstract
Provided is a metal belt for a belt-driven continuously variable transmission in which metal elements are capable of keeping the compliance value small even when defamed. Each metal element of the metal belt includes a body portion located radially inward of metal rings, an ear portion located radially outward of the metal rings, and a neck portion sandwiched by the pair of metal rings and connecting the body portion and the ear portion. At least one of a front surface and a rear surface of the metal element has a recess at a center region in a right-left direction of the ear portion, and the depth of the recess is larger than the amount of curving in a front-rear direction of the ear portion.
Claims4
A metal belt configured to be wound around pulleys of a belt-driven continuously variable transmission, the metal belt comprising:
- a pair of metal rings;
- and
- a plurality of metal elements supported by the pair of metal rings and aligned with one another in a front-rear direction in which the metal belt travels, each metal element comprising a body portion located radially inward of the pair of metal rings, an ear portion located radially outward of the pair of metal rings, and a neck portion located between the pair of metal rings and connecting the body portion and the ear portion, wherein
- at least one surface of a front surface and a rear surface of said ear portion of each metal element has a recess at a center region in a right-left direction of the ear portion,
- the front surface of the ear portion of each metal element has a nose protruding frontward and a raised portion around a base portion of the nose, and the rear surface of the ear portion of each metal element has a hole which allows the nose of an adjacent metal element to be inserted thereinto, and a depth of the recess is larger than a sum of an amount of curving of said at least one surface in the front-rear direction of the ear portion and a height of the raised portion around the nose in the front-rear direction of the ear portion such that the raised portion is not in contact with a rear surface of the adjacent metal element.
A metal belt configured to be wound around pulleys of a belt-driven continuously variable transmission, the metal belt comprising:
- a pair of metal rings;
- and
- a plurality of metal elements supported by the pair of metal rings and aligned with one another in a front-rear direction in which the metal belt travels, each metal element comprising a body portion located radially inward of the pair of metal rings, an ear portion located radially outward of the pair of metal rings, and a neck portion located between the pair of metal rings and connecting the body portion and the ear portion, wherein
- a front surface and a rear surface of the ear portion of each metal element each have a recess at a center region in a right-left direction of the ear portion,
- the front surface of the ear portion of each metal element has a nose protruding frontward and a raised portion around a base portion of the nose, and the rear surface of the ear portion of each metal element has a hole which allows the nose of an adjacent metal element to be inserted thereinto, and a sum of depths of the recesses is larger than a sum of amount of curving of the front surface in the front-rear direction of the ear portion, amount of curving of the rear surface in the front-rear direction of the ear portion, and a height of the raised portion around the nose in the front-rear direction of the ear portion such that the raised portion is not in contact with a rear surface of the adjacent metal element.
Dependencies are inferred from the claim text.