Pneumatic tire for rough terrain
一种充气轮胎、地面的技术,应用在摩托车轮胎、越野车轮胎、轮胎零部件等方向,能够解决轻快性变差、刚性大等问题,达到减轻生硬感、提高轻快性、保持抓地力及牵引性能的效果
Active Publication Date: 2014-01-22
SUMITOMO RUBBER IND LTD
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- Abstract
- Description
- Claims
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Problems solved by technology
[0005] However, in such a pneumatic tire as described above, the rigidity of the tread end side of the block, for example, is relatively large.
Due to this deviation in rigidity, the driver has a "stiff feeling" that measures the operability in terms of tactile sense, such as "twist and click" when turning, and there is a problem that the lightness of steering is deteriorated.
Method used
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Embodiment
[0064] Based on the specifications in Table 1, a trial-manufactured form has figure 1 The basic structure shown, and with figure 2 Pneumatic tires for motorcycles that use the tread pattern as the basic pattern for driving on uneven ground. In addition, the above-mentioned trial tires were fitted to the front wheels of a test vehicle, and the performance was tested.
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Abstract
The present invention provides a pneumatic tire for rough terrain, to maintain a grip during cornering and traction performance, and to reduce the rigid feeling of improved light manipulation. A pneumatic tire for rough terrain comprises a tread portion (2) provided with a plurality of blocks (11), the blocks (11)comprising a plurality of center blocks (12), a plurality of shoulder blocks (13) and a plurality of middle blocks (14), each of the center blocks, middle blocks and shoulder blocks comprising a top face (15) and a sidewall face (16), wherein at least one of the middle blocks(14) and shoulder blocks (13) is a U-shaped block (18) having a lateral slot (17) which extends from an axially outer sidewall face of the block to an axially inner end thereof being terminated within the block.
Description
technical field [0001] The present invention relates to a pneumatic tire for driving on rough terrain, which maintains grip and traction performance during cornering, reduces stiffness, and improves lightness of handling. Background technique [0002] Vehicles that run on uneven ground such as off-road motorcycles and rally cars generally use block-shaped pneumatic tires that have a plurality of blocks on the tread portion. A tire having such a block pattern can ensure driving force on soft muddy ground by sinking the blocks into the road surface. [0003] In addition, in order to further improve running performance on uneven ground, a pneumatic tire has been proposed in which recesses are provided on the tread and wall surfaces of the blocks (for example, Patent Document 1 below). Such a pneumatic tire increases the edge component by being provided in the concave portion of the block, thereby improving the grip and traction performance. [0004] Patent Document 1: Japanes...
Claims
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Patent Type & Authority Applications(China)
IPC IPC(8): B60C11/03
CPCB60C11/11B60C2011/036B60C2011/0381B60C2200/10B60C2011/133B60C11/032B60C2200/14
Inventor 山冈宏
Owner SUMITOMO RUBBER IND LTD
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