公开(公告)号：EP2067634A1

公开(公告)日：2009-06-10

申请号：EP07807877.1

申请日：2007-09-26

申请人： The Yokohama Rubber Co., Ltd.

发明人： TANNO, Atsushi ,  TSUJIMOTO, Hiroyuki

IPC分类号： B60C5/00

CPC分类号： B60C19/002 ,  Y10T152/10036 ,  Y10T152/10054 ,  Y10T152/10495

摘要： There is provided a tire noise reduction device and a pneumatic tire, in which weight can be reduced while sound absorbing characteristics are maintained and durability is improved.
The tire noise reduction device 1A of the present invention includes a sound absorbing member 3 of flexible polyurethane foam to be attached to an inner surface of a tire facing a cavity of the tire. The sound absorbing member 3 comprises a first sound absorbing layer 3A placed on a tire inner surface side thereof. The first sound absorbing layer 3A has a tear strength (N/cm) per unit density (kg/m 3 ) which is equal to or more than 0.30. The second sound absorbing layer 3B has a density which is lower than that of the first sound absorbing layer 3A.

摘要翻译： 提供一种轮胎噪声降低装置和充气轮胎，其中可以减轻重量，同时保持吸声特性并提高耐久性。 本发明的轮胎噪声降低装置1A包括柔性聚氨酯泡沫的吸音构件3，该吸收构件3附接到面向轮胎的空腔的轮胎的内表面。 吸声构件3包括放置在其轮胎内表面侧上的第一吸声层3A。 第一吸音层3A的每单位密度（kg / m 3）的撕裂强度（N / cm）等于或大于0.30。 第二吸音层3B的密度低于第一吸声层3A的密度。

公开(公告)号：EP1950057B1

公开(公告)日：2010-05-26

申请号：EP06832871.5

申请日：2006-11-17

申请人： The Yokohama Rubber Co., Ltd. ,  Kurashiki Boseki Kabushiki Kaisha

发明人： TANNO, Atsushi ,  TSUJIMOTO, Hiroyuki

IPC分类号： B60C5/00

CPC分类号： B60C19/002 ,  Y10T428/24992

公开(公告)号：EP2067634B1

公开(公告)日：2010-12-22

申请号：EP07807877.1

申请日：2007-09-26

申请人： The Yokohama Rubber Co., Ltd.

发明人： TANNO, Atsushi ,  TSUJIMOTO, Hiroyuki

IPC分类号： B60C5/00

CPC分类号： B60C19/002 ,  Y10T152/10036 ,  Y10T152/10054 ,  Y10T152/10495

摘要： A tire noise reduction device and pneumatic tire capable of being reduced in weight with their sound absorption performance maintained and their durability improved. The tire noise reduction device (1A) has a sound absorption member (3) made of soft polyurethane foam and is installed on a tire inner surface (14) facing a tire cavity section (15). The sound absorption member (3) is formed by layering a first sound absorption layer (3A) placed on the tire inner surface side and a second sound absorption later (3B) placed on the opposite side of the tire inner surface. Tearing strength (N/cm) per unit density (kg/m3) of the first sound absorption layer (3A) is not less than 0.30. The second sound absorption layer (3B) has a lower density than the first sound absorption layer (3A).

摘要翻译： 能够保持吸音性能并且提高耐久性的同时能够实现轻量化的轮胎噪音降低装置以及充气轮胎。 轮胎噪音降低装置（1A）具有由软质聚氨酯泡沫制成的吸音部件（3），该吸音部件（3）安装在面对轮胎空腔部（15）的轮胎内表面（14）上。 吸音部件（3）通过层叠配置在轮胎内面侧的第一吸音层（3A）和配置在轮胎内面的相反侧的第二吸音层（3B）而形成。 第一吸音层（3A）的每单位密度（kg / m 3）的撕裂强度（N / cm）不小于0.30。 第二吸音层（3B）的密度比第一吸音层（3A）的密度低。

公开(公告)号：EP1950057A1

公开(公告)日：2008-07-30

申请号：EP06832871.5

申请日：2006-11-17

申请人： The Yokohama Rubber Co., Ltd. ,  Kurashiki Boseki Kabushiki Kaisha

发明人： TANNO, Atsushi ,  TSUJIMOTO, Hiroyuki

IPC分类号： B60C5/00

CPC分类号： B60C19/002 ,  Y10T428/24992

摘要： The present invention is to provide a flexible polyurethane foam for tires that can effectively suppress damages, such as chips and cracks, and deformation, such as compression (permanent set in fatigue), even when attached to an inner face of a tire by using a band member.
A flexible polyurethane foam for tires 5 which is attached to a gap between a tire and a wheel rim, wherein a density is in the range from 7 to 40 kg/m 3 and a tear strength (N/cm) per unit density (kg/m 3 ) is 0.30 or more, a noise reducing device with the flexible polyurethane foam for tires 5 fixed to a ring-shaped band member, and a tire 10 with the noise reducing device attached thereto.

摘要翻译： 本发明提供一种用于轮胎的柔性聚氨酯泡沫体，即使在通过使用轮胎的内表面附接到轮胎的内表面时也能够有效地抑制诸如碎屑和裂缝等损伤，以及压缩（疲劳永久性）等变形 乐队成员。 用于轮胎5的柔性聚氨酯泡沫，其附着在轮胎和轮辋之间的间隙，其中密度在7至40kg / m 3的范围内，每单位密度的撕裂强度（N / cm）（kg / m 3）为0.30以上，具有固定在环状带构件上的轮胎用柔性聚氨酯泡沫塑料的降噪装置，以及安装有降噪装置的轮胎10。