KERF STRUCTURE FOR SNOW TIRE

• Main Authors: YOUN SUNG HEE, LEE SANG MOO, KIM MU YEONG, SON SU JIN, LEE MYOUNG JOONG, JOO SANG TAK
• Format: Patent
• Language: English; Japanese
• Published: 27.04.2015
• Subjects: DEVICES OR ARRANGEMENTS RELATED TO TYRES; PERFORMING OPERATIONS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL; TRANSPORTING; TYRE CHANGING OR REPAIRING; TYRE INFLATION; VEHICLE TYRES; VEHICLES IN GENERAL; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PROBLEM TO BE SOLVED: To optimize rigidity and secure kerf function even at a wearing ending period.SOLUTION: The kerf structure for a snow tire is related to a kerf structure for a snow tire in which, unit structures, in each of that a spiral-shaped projection 122 is formed at the outer periphery surface of a semi-cylinder-shaped column 121, are continuously formed with separation of a constant distance and, in the unit structures, convex parts and concave parts are arranged alternately in the form of zigzag. Blocks are downed at an adequate level in the kerf structure, rigidity which can maintain raking force that is the primary function of the kerf is optimized while securing friction force by small blocks in a tread part partitioned by the kerf, and rigidity of the tread blocks is lowered even at the wearing ending period, resulting in an effect of securing the kerf function on snow. 【課題】剛性の最適化と共に摩耗末期にもカーフ機能を確保する。【解決手段】半シリンダー型柱１２１の外周面に螺旋形突起１２２が形成された、単位構造が連続に一定の距離で離隔して形成され、単位構造はジグザグの形態で凸部と凹部が交互に配置されるスノータイヤ用カーフ構造に関し、カーフ構造はブロックが適正な水準で倒れ、カーフ(kerf)で区切られたトレッド部の小さなブロックによる摩擦力も確保しながら、カーフ本来の機能である掻く力も保つことができる剛性の最適化と共に、摩耗末期にもトレッドブロックの剛性を下げて、雪上でのカーフ機能を確保できる効果がある。【選択図】図３