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US 11,993,105 B2Granted
Pneumatic tire and method for manufacturing the same
AssigneeThe Yokohama Rubber Co., Ltd.
InventorsTakashi Hoshiba, Masahiro Naruse
Life of this patent
Estimating the term…
Abstract
Provided is a pneumatic tire including an indicator made of a protrusion portion or a recess portion extending in a tire circumferential direction is formed on a tire inner surface. A sound absorbing member or a sealant layer is applied to the tire inner surface along the indicator.
Claims18
A pneumatic tire comprising:
- an indicator made of a protrusion portion or a recess portion that extends in a tire circumferential direction on a tire inner surface, the indicator being formed from an inner liner of the pneumatic tire;
- and
- a sound absorbing member or a sealant layer applied to the tire inner surface with a tire width direction edge of the sound absorbing member or the sealant layer disposed along the indicator;
- wherein the indicator is a single and only indicator formed on the tire inner surface along which the sound absorbing member or the sealant layer is applied.
1 more element
A method for manufacturing a pneumatic tire, comprising the steps of:
- vulcanizing a green tire using a bladder having a bladder outer surface formed with a recess portion or a protrusion portion extending in a bladder circumferential direction to obtain a vulcanized pneumatic tire;
- forming an indicator made of a protrusion portion or a recess portion extending in a tire circumferential direction on an inner surface of the vulcanized pneumatic tire, the indicator being formed from an inner liner of the pneumatic tire;
- and
- applying a sound absorbing member or a sealant layer to the inner surface of the vulcanized pneumatic tire with a tire width direction edge of the sound absorbing member or the sealant layer disposed along the indicator;
- wherein
- the indicator is a single and only indicator formed on the tire inner surface along which the sound absorbing member or the sealant layer is applied.
3 more elements
A pneumatic tire comprising:
- a tread portion, a pair of sidewall portions disposed on either side of the tread portion, and a pair of bead portions disposed inward of the sidewall portions in the tire radial direction;
- at least four indicators each made of a protrusion portion or a recess portion that extends in a tire circumferential direction on a tire inner surface of the tread portion, the at least four indicators being formed from an inner liner of the pneumatic tire;
- and
- a sound absorbing member or a sealant layer applied to the tire inner surface along a plurality of the at least four indicators;
- wherein the sound absorbing member or the sealant layer is a single and only sound absorbing member or sealant layer applied to the tire inner surface, and a width direction edge of the sound absorbing member or the sealant layer is disposed abutting at least one of the at least four indicators.
2 more elements
A pneumatic tire comprising:
- a tread portion, a pair of sidewall portions disposed on either side of the tread portion, and a pair of bead portions disposed inward of the sidewall portions in the tire radial direction;
- at least two indicators on a same width direction side of a sound absorbing member or a sealant layer, each of the at least two indicators being made of a protrusion portion or a recess portion that extends in a tire circumferential direction on a tire inner surface of the tread portion, the at least two indicators being formed from an inner liner of the pneumatic tire;
- and,
- the sound absorbing member or the sealant layer applied to the tire inner surface along at least one of the at least two indicators;
- wherein the sound absorbing member or the sealant layer is a single and only sound absorbing member or sealant layer applied to the tire inner surface, and a width direction edge of the sound absorbing member or the sealant layer is disposed abutting at least one of the at least two indicators.
2 more elements
Dependencies are inferred from the claim text.