The present invention provides a tine for reliably cutting old grass roots and efficiently aerating grass. A main body having a discharge port opened by cutting a part of a side peripheral surface of a cylindrical body having an opening at the tip, and a tip formed in a tapered shape so as to narrow the opening at the tip of the main body A plurality of spiral strips spirally projecting from the opening to the discharge port along the inner periphery of the main body, and when the main body is stabbed into the ground, the opening from the opening The root of the turf is cut with the tip blade by twisting the turf introduced into the main body along the spiral strip. [Selection] Figure 1【課題】芝の古い根を確実に切断し、効率的に芝生のエアレーションを行うためのタインを提供する。【解決手段】先端に開口部を有する筒体の側周面の一部を切り取ることで排出口が空けられた本体と、前記本体の先端に前記開口部を狭めるようにテーパ状に形成した先端刃と、前記本体の内周に沿って前記開口部から前記排出口まで螺旋状に突出する複数の螺旋条と、を有し、前記本体が地面に突き刺されたときに、前記開口部から前記本体の内部に導入された芝を前記螺旋条に沿って捩じらせることで当該芝の根元を前記先端刃で切断する。【選択図】図１
