| 摘要 |
The tiller tine is provided with: an attachment base for mounting on the attachment flange of a rotating tine spindle; a longitudinal blade section, which, in side view when viewing the surface that has the axis of rotation of the rotating tine spindle as a normal line, is formed from a flat plate that extends horizontally from said attachment base to the section where the curvature of the transverse blade begins and is provided with a cutting edge that is formed lower than the lower edge of the attachment base by way of a stairstep; and a transverse blade section, which extends from the longitudinal blade section with the section where the curvature of the transverse blade begins as a boundary, is formed with a width equal to or greater than the width of the attachment base from the longitudinal blade section to the tip, and is formed from a curved plate that is formed to curve gently upward in side view and curves in one direction with the section where the curvature of the transverse blade begins as the boundary. Provided thereby is a tiller tine that limits stress concentration when being driven into the soil and the resultant change in load, reduces tilling vibration and power consumption, and excels in various tilling properties such as release, reversibility, soil amendability, clod breakage, and land-leveling. |
