PNEUMATIC TIRE - SUMITOMO RUBBER IND

Title:

PNEUMATIC TIRE

Document Type and Number:

WIPO Patent Application WO/2012/050000

Kind Code:

A1

Abstract:

Provided is a pneumatic tire comprising a belt layer (7), a band layer (9), and an acoustic damper (10) composed of a sponge material and attached to the radially internal surface (TS) of a tread (2). The width (WA) of the acoustic damper (10) in the axial direction of the tire is 40-70% of a tread ground-contact width (TW). The band layer (9) has an overlapping part (12) in which two band plies (9A, 9B) are superposed on one another inside and outside in the radial direction; and the overlapping part (12) covers the external, as viewed in the axial direction of the tire, end of the belt layer (7) over a cover width (WB) that is 10-25% of the tread ground-contact width (TW). The internal, as viewed in the axial direction of the tire, end (12i) of the overlapping part (12) is spaced apart from the external, as viewed in the axial direction of the tire, end (E) of the acoustic damper (10) to the outside of the tire in the axial direction by a distance (LC), and the distance (LC) is equal to 5-20% of the tread ground-contact width (TW).

More Like This:

WO/2009/144752	MOTORCYCLE TIRE
JP3563501	PNEUMATIC RADIAL TIRE
JP2010264844	RUN FLAT TIRE

Inventors:

OBA RYO (JP)

Application Number:

PCT/JP2011/072778

Publication Date:

April 19, 2012

Filing Date:

October 03, 2011

Export Citation:

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Assignee:

SUMITOMO RUBBER IND (JP)
OBA RYO (JP)

International Classes:

B60C9/22; B60C5/00; B60C9/18

Foreign References:

JP2007161069A	2007-06-28
JP2006264667A	2006-10-05
JP2010173573A	2010-08-12
JP2006306302A	2006-11-09
JP2007161069A	2007-06-28

Other References: