FENG, MICHAEL,FELDKAMP, JONATHAN R.,DINGMAN, TRENT J.,KONDRO, GRZEGORZ,CHAPMAN, SETH H.
申请号：
CA3071912
公开号：
CA3071912A1
申请日:
2020.02.10
申请国别(地区):
CA
年份:
2020
代理人:
摘要：
A blade for a lawn mower includes a blade body, a longitudinal axis, a centeropening, afirst aperture, and a second aperture. The blade body has a first end and asecond end oppositethe first end. The longitudinal axis extends centrally along the blade bodyand through the firstand second ends. The center opening is defined in the blade body and receivesa drive shaft. Thefirst aperture is defined in the blade body between the center opening and thefirst end. The firstaperture receives a first projection. The second aperture is defined in theblade body between thecenter opening and the second end. The second aperture receives a secondprojection. The firstaperture has a different shape than the second aperture. A centroid of each ofthe center opening,the first aperture, and the second aperture is substantially aligned with thelongitudinal axis.
