公开(公告)号：US5103561A

公开(公告)日：1992-04-14

申请号：US710982

申请日：1991-06-06

Applicant: Kazuo Harada ,  Toshiya Kurihara

Inventor： Kazuo Harada ,  Toshiya Kurihara

IPC: A01D34/76 ,  A01D34/73

CPC classification number: A01D34/90 ,  A01D34/73

Abstract: A grass trimmer having a cutting blade mounting head portion in which an output is disposed, and a cutting blade mounting member is provided for mounting a cutting blade. The output shaft has a relative rotation preventing engagement portion formed on a lower portion thereof, and a fitting centering portion formed on a portion of the output shaft which is immediately above and adjacent to the relative rotation preventing engagement portion. The cutting blade mounting member has a central hole extending therethrough, and the inner periphery of the central hole has a fitting portion and a coaxial engagement portion, both formed thereon, the fitting portion being capable of fitting on the relative rotation preventing engagement portion of the output shaft, and the coaxial engagement portion being engageable with the fitting centering portion of the output shaft.

Abstract translation: 具有设置有输出的切割刀片安装头部的割草机和设置用于安装切割刀片的切割刀片安装部件。 输出轴具有形成在其下部的相对旋转防止接合部和形成在输出轴的紧邻相对防止旋转接合部的上方并与其相邻的部分上的嵌合定心部。 切割刀片安装构件具有贯穿其的中心孔，并且中心孔的内周具有形成在其上的嵌合部和同轴接合部，所述嵌合部能够嵌合在所述嵌合部和所述相对旋转防止接合部 输出轴，并且同轴接合部分可与输出轴的装配中心部分接合。