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Inverted tooth chain having inner flank engagement

A chain, internal tooth technology, applied to elements with teeth, belts/chains/gears, drive chains, etc.

Active Publication Date: 2017-02-15
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While some efforts to reduce noise by creating contact between the sprocket teeth and the internal flanks of the link teeth are known, these arrangements have a high degree of stress concentration at the point of contact

Method used

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  • Inverted tooth chain having inner flank engagement
  • Inverted tooth chain having inner flank engagement
  • Inverted tooth chain having inner flank engagement

Examples

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Embodiment Construction

[0014] Certain terms are used in the following description for convenience only and not limitation. The words "inwardly", "outwardly", "inwardly" and "outwardly" refer to directions towards and away from the part referenced in the drawings. Reference to a listing of items referred to as "at least one of a, b, or c" (where a, b, and c represent the listed items) means any individual one or combination of items a, b, or c. The terminology includes the words specifically noted above, derivatives thereof and words of similar import.

[0015] figure 1 and 2 A chain and sprocket drive system 1 is shown. A chain and sprocket drive system 1 includes a sprocket 2 with a plurality of teeth 6, as in figure 2 As shown in , each tooth of the plurality of teeth 6 has an engaging tooth flank 8, a disengaging tooth flank 10, and a rounded tooth tip 12 connecting the engaging tooth flank 8 and the disengaging tooth flank 10 to each other. The dedendum 14 is located between adjacent ones ...

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PUM

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Abstract

A chain and sprocket drive system that includes a sprocket and an inverted tooth chain assembly configured to mesh with the sprocket is provided. The chain assembly includes at least two rows of links, each of the links having teeth with a pair of inner flanks, a pair of outer flanks, tips interconnecting a respective inner flank and outer flank, and a radiused crotch located between the pair of inner flanks. The inner flanks have an enlarged profile in a direction toward a center of the link in comparison to a profile of the outer flanks. A contact position with a tooth of the sprocket engaged therewith is located on the link in an area extending from the inner flank into the radiused crotch and on the sprocket in an area of the radiused tip of the tooth.

Description

[0001] Cross References to Related Applications [0002] The following document is hereby incorporated by reference as if fully set forth: US Provisional Patent Application No. 61 / 985,225, filed April 28, 2014. technical field [0003] This application relates generally to an inverted tooth chain assembly and more particularly to an improved link tooth profile for an inner link on an inverted tooth chain assembly. Background technique [0004] Inverted tooth chain assemblies are used in conjunction with sprockets for drive assemblies in automobiles and various other applications. In previously known inverted tooth chain assemblies, the chain is formed from a plurality of links, each link comprising a pair of outer flanks and a pair of inner flanks, the pair of outer flanks being configured to align with the teeth on the sprocket. Engage with a drive connection. During operation, the outer flanks engage the sprocket teeth, and the contact of the teeth engaging the outer fla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/30F16H7/06
CPCF16G13/04F16H7/06
Inventor 卢西恩·博泰兹
Owner SCHAEFFLER TECH AG & CO KG
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