PROBLEM TO BE SOLVED: To improve the calculation accuracy of slipping of a tire tread on a road surface.SOLUTION: The contact surface behavior measuring device for a tire tread includes a road surface plate 3 having a measuring hole 3a, on which a tire T is rolled, a pressure receiving body 51 located in the measuring hole 3a, having a pressure receiving part 52 in which a top surface 51a is flush with a tire contact surface 3b of the road surface plate 3 at a tip, and disposed to be displaced with respect to the road surface plate 3, a pressure detector 57 connected to the pressure receiving body 51 to detect contact pressure applied on the tire tread of the tire T rolled on the road surface plate 3, an objective lens 61 located opposite the tire T sandwiching the road surface plate 3 and arranged to face the measuring hole 3a, image capturing means 64 for capturing the image of the contact surface of the tire tread of the tire T rolled on the road surface plate 3 from the inside of the pressure receiving part 52 via the objective lens 61, and a slip calculation part 43 for calculating slipping of the contact surface of the tire tread on the road surface plate 3.SELECTED DRAWING: Figure 4
【課題】タイヤ踏面の路面に対する滑りの算出精度を向上させる。【解決手段】測定孔3aを有しタイヤTが転動される路面プレート3と、測定孔3a内に位置しており且つ頂面51aが路面プレート3のタイヤ接地面3bと面一状とされた受圧部52を先端に有しており、路面プレート3に対して相対変位可能に配置された受圧体51と、受圧体51に接続され、路面プレート3を転動するタイヤTのタイヤ踏面に作用する接地圧を検知する圧力検出器57と、路面プレート3を挟んでタイヤTの反対側に位置しており、測定孔3aに対向して配置された対物レンズ61と、路面プレート3を転動するタイヤTのタイヤ踏面の接地面を、受圧部52の内側から対物レンズ61を介して撮像する撮像手段64と、撮像された画像に基づいて、タイヤ踏面の接地面の、路面プレート3に対する滑りを算出する滑り算出部43とを備える。【選択図】図4
CONTACT SURFACE BEHAVIOR MEASURING DEVICE FOR TIRE TREAD AND CONTACT SURFACE BEHAVIOR MEASURING METHOD FOR TIRE TREAD
タイヤ踏面の接地面挙動測定装置、及びタイヤ踏面の接地面挙動測定方法
2016-04-11
Patent
Electronic Resource
Japanese
Tire tread mixture, tire tread made from tire tread mixture and tire
European Patent Office | 2016
|