[Challenge] drilling equipment and lawn possible to prevent the tip of the cone is lacking, to provide a curing device to achieve the curing and development of the plant. A perforating apparatus 70, a housing 30 that moves up and down the driving carriage is provided, the plurality of shafts 71 provided in the housing 30, rotatably central shaft 72 provided with a cone 77, and vertically movable in addition to the inner set, and provided inside to be able to regulate the central axis 72 to the shaft 71, freely rotation of the central shaft 72, and a vertically movable, together with controlled by housing the drive mechanism provided in the housing 30, this the vertical movement of the center shaft 72, controlled by the elastic member 76 provided between the shaft 71 and the central axis 72, also when contraction of the elastic member 76, the central shaft 72 is moved upward relative to the shaft 71, to allow release the restriction of the shaft 71 with respect to the center axis 72. When the center shaft 72 hits the obstacle such as a stone, by the contraction of the elastic member 76, the central shaft 72 is moved to the upper side with respect to the shaft 71.FIELD 2【課題】錐の先端が欠損することを防止できる穿孔装置及び芝生,植物の育成と養生とを図る養生装置を提供する。【解決手段】穿孔装置70は、駆動台車に上下動する筐体30を設け、筐体30に設けた複数本のシャフト71に、錐77を備えた中心軸72を回転自在、かつ上下動自在に内設するとともに、シャフト71に中心軸72を規制できるように内設し、中心軸72の回転自在、かつ上下動自在を、筐体30に設けた筐体駆動機構により制御するとともに、この中心軸72の上下動を、シャフト71と中心軸72との間に設けた弾性部材76で制御し、また、弾性部材76の収縮時に、中心軸72はシャフト71に対して上側に移動し、中心軸72に対するシャフト71の規制を解除可能とする。中心軸72が石等の障害物にぶつかると、弾性部材76の収縮によって、中心軸72がシャフト71に対して上側に移動する。【選択図】図2
