PNEUMATIC TIRE

PURPOSE:To mainly reduce generation of road noise by providing a low hardness rubber layer having a specific JIS hardness and a loss factor between a carcass layer and a rim cushion rubber layer on a region corresponding to a rim flange outside a bead core. CONSTITUTION:A bead 1 on either side of th...

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1. Verfasser: YANASE TSUNEO
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creator YANASE TSUNEO
description PURPOSE:To mainly reduce generation of road noise by providing a low hardness rubber layer having a specific JIS hardness and a loss factor between a carcass layer and a rim cushion rubber layer on a region corresponding to a rim flange outside a bead core. CONSTITUTION:A bead 1 on either side of the tire is composed of a carcass layer 3 which is folded back around a bead core 2 to enclose an upper bead filler 4 to reach a side wall 5 and a rim cushion rubber layer 9 which extends from a bead heel 8 to the vicinity of the side wall 5. In this case on at least an upper region of a rim flange R outside the bead core 2, a low hardness rubber layer 10 is provided between the both layers 3, 9. The JIS hardness Hs at 20 deg.C of the low hardness rubber layer 10 is specified in a range of 40 to 50 and a loss factor tandelta at 20 deg.C is specified in a range of 0.4 to 0.8, respectively.
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subjects DEVICES OR ARRANGEMENTS RELATED TO TYRES
PERFORMING OPERATIONS
REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL
TRANSPORTING
TYRE CHANGING OR REPAIRING
TYRE INFLATION
VEHICLE TYRES
VEHICLES IN GENERAL
title PNEUMATIC TIRE
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