PROBLEM TO BE SOLVED: To provide: an elastic crawler with the durability of an engaging part improved while suppressing interference of a pin member with the engaging part; and an elastic crawler drive mechanism.SOLUTION: This invention is an elastic crawler having a plurality of engaging parts 14 respectively capable of being engaged with a plurality of pin members 22 circumferentially arranged with intervals in the circumferential direction of a sprocket on the inner peripheral side. The engaging part 14 has a pressure receiving face 14a that receives the pin member 22, where the pressure receiving face 14a is coaxial with the center axis of a virtual body of rotation with a roll diameter Dstipulated by the following expression (1) in contour shape from a side view and is shaped from an envelope Lthe outer edge of the pin member 22 depicts when the sprocket rolls with the virtual body of rotation over a plane. Note D=D×a...(1) where D=pitch of the engaging part)×(number of pin members)/(circumference ratio) 0.9≤a<1.SELECTED DRAWING: Figure 3
【課題】ピン部材と係合部との干渉を抑制しつつ係合部の耐久性を向上させた弾性クローラおよび弾性クローラ駆動機構を提供する。【解決手段】本発明は、スプロケットの周方向に間隔を置いて配置された複数のピン部材22のそれぞれに係合可能な複数の係合部14を、内周側に有する弾性クローラであって、係合部14は、ピン部材22を受ける受圧面14aを有し、当該受圧面14aは、側面視の輪郭形状が、以下の式(1)で規定される転がり直径D1の仮想回転体の中心軸と同軸でスプロケットが仮想回転体とともに平面上を転がったときにピン部材22の外縁が描く包絡線L1で形作られている。記D1=D0×a ・・・(1)ここで、D0=(前記係合部のピッチ)×(ピン部材の個数)/(円周率)0.9≦a<1【選択図】図3
ELASTIC CRAWLER AND ELASTIC CRAWLER DRIVE MECHANISM
弾性クローラおよび弾性クローラ駆動機構
2016-12-08
Patent
Electronic Resource
Japanese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |