用于自动切换草皮切割机的档位并联动刀片升降。
专利摘要
一种换档互锁机构，用于当切割刀片降低到地面时自动将草皮切割机换入低档，并在草皮切割机换入高档时自动升高切割刀片。该机构可包括切割刀片操纵杆。切割刀片操纵杆可包括凸轮构件，当切割刀片手柄升高到向上位置时，该凸轮构件与换档杆接合产生凸轮作用。当切割刀片操纵杆移动以降低切割刀片时，凸轮构件将换档杆移入低档。当切割刀片手柄处于向上位置且切割刀片已降低时，当换档器移入高档时，换档杆将抵抗凸轮构件并产生相反的凸轮作用，从而升高刀片。
Original abstractA shift interlock mechanism for automatically shifting a sod cutter into a low gear when a cutting blade is lowered into the ground and automatically raising the cutting blade when the sod cutter is shifted into a high gear. The mechanism may include a cutting blade lever. The cutting blade lever may include a cam member which engages the shift lever creating cam action when the cutting blade handle is raised to the up position. When the cutting blade lever is moved to lower the cutting blade, the cam member moves the shift lever into a low gear. When the cutting blade handle is in the up position and the cutting blade has been lowered, the shift lever will oppose the cam member and create an opposite cam action, thereby raising the blade, when the shifter is moved into a high gear.
专利附图（8）
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