JPH0213804U

JPH0213804U -

Info

Publication number: JPH0213804U
Application number: JP9272088U
Authority: JP
Priority date: 1988-07-12
Filing date: 1988-07-12
Publication date: 1990-01-29

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図〜第５図は本考案の実施例を示し、第１
図は第１実施例のトレツド部の一部平面図、第２
図は第２実施例のトレツド部の一部平面図、第３
図は第３実施例のトレツド部の一部平面図、第４
図及び第５図は面取り形状を示す部分断面図、第
６図は従来のタイヤにおける溝の位置によるフイ
ーリング評価及び横揺れ頻度のテスト結果の説明
図、第７図はレイングルーブを設けた路面とタイ
ヤのトレツド部主溝との関係の説明図である。１……空気入りタイヤ、２……トレツド部、３
……周方向主溝、６……中央部域、７……マイク
ロサイプ、８……マルチサイプ、９……面取り。 1 to 5 show embodiments of the present invention.
The figure is a partial plan view of the tread portion of the first embodiment, and
The figure is a partial plan view of the tread portion of the second embodiment, and the figure is a partial plan view of the tread portion of the second embodiment.
The figure is a partial plan view of the tread portion of the third embodiment;
Figure 5 and Figure 5 are partial cross-sectional views showing the chamfered shape, Figure 6 is an explanatory diagram of the test results of the feeling evaluation and roll frequency according to the groove position in a conventional tire, and Figure 7 is a diagram showing the road surface with rain grooves. FIG. 3 is an explanatory diagram of the relationship between the tread portion and the main groove of the tire. 1...Pneumatic tire, 2...Tread section, 3
... Circumferential main groove, 6 ... Central region, 7 ... Micro sipe, 8 ... Multi-sipe, 9 ... Chamfer.

Claims

【実用新案登録請求の範囲】 (1) トレツド部２に複数条の周方向主溝３を備
えた空気入りタイヤ１において、前記トレツド部２の幅方向中央部域６に位置す
る周方向主溝３の端縁部又は主溝３間の周面に、
マイクロサイプ７又はマルチサイプ８が設けられ
ていることを特徴とする空気入りタイヤ。 (2) 前記中央部域に位置する周方向主溝３の端
縁部に面取り９がなされている請求項１記載の空
気入りタイヤ。[Claims for Utility Model Registration] (1) In a pneumatic tire 1 having a plurality of circumferential main grooves 3 in a tread portion 2, a circumferential main groove located in a central region 6 in the width direction of the tread portion 2; 3 or the peripheral surface between the main grooves 3,
A pneumatic tire characterized by being provided with micro-sipes 7 or multi-sipes 8. (2) The pneumatic tire according to claim 1, wherein an edge portion of the circumferential main groove 3 located in the central region is chamfered.