JPS61150431U

JPS61150431U -

Info

Publication number: JPS61150431U
Application number: JP3357385U
Authority: JP
Priority date: 1985-03-09
Filing date: 1985-03-09
Publication date: 1986-09-17

Description

[Brief explanation of the drawing]

図面は本考案に係る芝刈機の刈刃構造の実施例
を示し、第１図は全体分解縦断面図、第２図は全
体縦断面図、第３図は第２図の―線断面図、
第４図は芝刈機の全体側面図、第５図は集草器の
排出開閉機構を示す背面図である。１……出力軸、２……エンジン、３……刈刃、
３Ａ……接触面、３ａ……突起、１１……トルク
リミツタ機構、１２……刈刃支持部材、１２Ａ…
…接触面、１２ａ……凹部、１４……付勢機構、
１６……係合機構。 The drawings show an embodiment of the cutting blade structure of a lawn mower according to the present invention, and FIG. 1 is an exploded longitudinal sectional view of the entire structure, FIG. 2 is an overall longitudinal sectional view, and FIG. 3 is a sectional view taken along the line -- of FIG.
FIG. 4 is an overall side view of the lawn mower, and FIG. 5 is a rear view showing the grass collector discharge opening/closing mechanism. 1...Output shaft, 2...Engine, 3...Mower blade,
3A... Contact surface, 3a... Protrusion, 11... Torque limiter mechanism, 12... Cutting blade support member, 12A...
...contact surface, 12a... recess, 14... biasing mechanism,
16...Engagement mechanism.

Claims

[Scope of utility model registration request]

This lawn mower has a cutting blade 3 attached to a cutting blade support member 12 fixed to a working device output shaft 1 of an engine 2 via a torque limiter mechanism 11, and the cutting blade 3 is connected to the cutting blade support member 12 and the cutting blade 3 through a torque limiter mechanism 11. An engagement mechanism 16 consisting of a protrusion 3a and a plurality of recesses 12a that can be fitted into and disengaged from the protrusion 3a is formed on the opposing contact surfaces 12A and 3A. A mowing blade structure for a lawn mower, in which the torque limiter mechanism 11 is configured by providing a biasing mechanism 14 that maintains an engaged state with the blade.