Metal belt for continuously variable transmission

US2016102732A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2016102732-A1
Application numberUS-201414895598-A
CountryUS
Kind codeA1
Filing dateMar 31, 2014
Priority dateJun 4, 2013
Publication dateApr 14, 2016
Grant date

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  1. Title

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  2. Abstract

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  4. Key dates

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  5. First independent claim

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Abstract

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In a metal belt for a continuously variable transmission having a saddle face of a metal element and a rocking edge positioned at substantially the same position in the radial direction, a rocking edge is provided at a radially outer end of a front face of a body part, the rocking edge being a fulcrum for pitching of the metal element of the metal belt which is wound around a drive pulley and a driven pulley and transmits a driving force between the two pulleys, and a recess is provided extending from a front face of a neck part to a front face of the body part. Thus, it is possible to minimize a space created between the front and rear metal elements and reduce the bending stress applied to the metal elements, thereby minimizing degradation of the power transmission efficiency.

First claim

Opening claim text (preview).

1 - 3 . (canceled) 4 . A metal belt for a continuously variable transmission, the metal belt, which is wound around a drive pulley and a driven pulley and transmits a driving force between the two pulleys, comprising a pair of metal ring assemblies that are arranged side by side in a left-and-right direction and a large number of metal elements that are latched to the pair of metal ring assemblies in a state in which the metal elements are stacked in a fore-and-aft direction, the metal element comprising a pair of ring slots with which the pair of metal ring assemblies engage, a neck part that is positioned between the pair of ring slots, a body part on which is formed a saddle face that is continuous with a radially inner side of the neck part and supports an inner peripheral face of the pair of metal ring assemblies, and an ear part that is continuous with a radially outer side of the neck part and opposes an outer peripheral face of the pair of metal ring assemblies, and a rocking edge being provided at a radially outer end of a front face of the body part, the rocking edge being a fulcrum for pitching of the metal element, wherein a first recess extending from the ear part to the body part is formed in front faces of the ear part and the body part. 5 . The metal belt for a continuously variable transmission according to claim 4 , wherein a second recess extending from the neck part to the body part is formed in rear faces of the neck part and the body part. 6 . A metal belt for a continuously variable transmission, the metal belt, which is wound around a drive pulley and a driven pulley and transmits a driving force between the two pulleys, comprising a pair of metal ring assemblies that are arranged side by side in a left-and-right direction and a large number of metal elements that are latched to the pair of metal ring assemblies in a state in which the metal elements are stacked in a fore-and-aft direction, the metal element comprising a pair of ring slots with which the pair of metal ring assemblies engage, a neck part that is positioned between the pair of ring slots, a body part on which is formed a saddle face that is continuous with a radially inner side of the neck part and supports an inner peripheral face of the pair of metal ring assemblies, and an ear part that is continuous with a radially outer side of the neck part and opposes an outer peripheral face of the pair of metal ring assemblies, and a rocking edge being provided at a radially outer end of a front face of the body part, the rocking edge being a fulcrum for pitching of the metal element, wherein a first recess extending from the neck part to the body part is formed in front faces of the neck part and the body part, and the first recess is formed so as to extend from one part of the neck part to the body part, a third recess extending from one part of the neck part to the ear part is formed in rear faces of the neck part and the body part, and the first recess and the third recess are positioned so as not to overlap one another when viewed in the fore-and-aft direction.

Assignees

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Classifications

  • F16G5/16Primary

    consisting of several parts · CPC title

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What does patent US2016102732A1 cover?
In a metal belt for a continuously variable transmission having a saddle face of a metal element and a rocking edge positioned at substantially the same position in the radial direction, a rocking edge is provided at a radially outer end of a front face of a body part, the rocking edge being a fulcrum for pitching of the metal element of the metal belt which is wound around a drive pulley and a…
Who is the assignee on this patent?
Honda Motor Co Ltd
What technology area does this patent fall under?
Primary CPC classification F16G5/16. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Thu Apr 14 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).