Endless belt power transmission systems or components – Positive drive belt – Belt formed of rigid links
Reexamination Certificate
2011-06-28
2011-06-28
Mansen, Michael R (Department: 3654)
Endless belt power transmission systems or components
Positive drive belt
Belt formed of rigid links
C474S215000
Reexamination Certificate
active
07967710
ABSTRACT:
The invention relates to a link-plate chain for a v-pulley-continuously variable transmission, especially for motor vehicles, with several cradle thrust pieces configured in pairs and projecting transversely through the link-plate chain, and links which are offset to each other and which connect the cradle thrust pieces in the lengthwise direction of the chain, the cradle thrust pieces adjoining each other with the inner rolling surfaces facing each other and interacting with outer rolling surfaces with openings of the links and on their front sides having friction surfaces which run onto the annular surfaces of the v-pulleys to transmit torque, and furthermore the cradle thrust pieces being made such that the differences of the torque transmitted by way of the cradle thrust piece pairs to the links, which differences are present over the width of the link-plate chain, are at least partially compensated. To obtain a link-plate chain with low wear and improved stability of running, the outer rolling surfaces of at least one of the respective cradle thrust pieces, but preferably of both cradle thrust pieces, are made such that the links of the link-plate chain which lie outside when viewed in the transverse direction are relieved at low load and at full load are loaded at the same time in the elastic deformation region of the cradle thrust pieces.
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Audi AG
Mansen Michael R
Novak Druce & Quigg LLP
Reese Robert T
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