JPS61136832U

JPS61136832U -

Info

Publication number: JPS61136832U
Application number: JP1940685U
Authority: JP
Priority date: 1985-02-14
Filing date: 1985-02-14
Publication date: 1986-08-26

Description

[Brief explanation of drawings]

第１図は本考案に係る動力式芝刈機の斜視図、
第２図はカツタハウジングの平面図、第３図は第
２図の―線断面図、第４図は従来のカツタハ
ウジングの内部を示す断面図である。尚、図面中１は動力式芝刈機、１１はカツタハ
ウジング、１２はデイスチヤージヤ部、１３はカ
ツタブレード、１３ａはカツタブレード本体、１
３ｂはフリー刃、１４はカツタハウジング上面、
１５はカツタハウジング周面、ｌはカツタブレー
ドの回転中心を通る進行方向軸線、Ｐ_１，Ｐ_３は
軸線とカツタハウジング周面との交点、Ｐ_２，Ｐ
_４は軸線とカツタハウジング周面との交点から若
干進角した点である。 FIG. 1 is a perspective view of a power lawn mower according to the present invention;
FIG. 2 is a plan view of the cutter housing, FIG. 3 is a sectional view taken along the line -- in FIG. 2, and FIG. 4 is a sectional view showing the inside of a conventional cutter housing. In the drawings, 1 is a power lawn mower, 11 is a cutter housing, 12 is a discharge gear part, 13 is a cutter blade, 13a is a cutter blade body, 1
3b is the free blade, 14 is the top surface of the cutter housing,
15 is the circumferential surface of the cutter housing, l is the axis in the advancing direction passing through the rotation center of the cutter blade, P ₁ , P ₃ are the intersection points of the axis and the circumferential surface of the cutter housing, P ₂ , P
₄ is a point slightly advanced from the intersection of the axis and the circumferential surface of the cutter housing.

Claims

[Scope of utility model registration request]

In a power lawn mower in which a cutter blade housed in a cutter housing is rotated by the power of an engine, the cutter blade does not have a twisted part, and the cutter housing has a de-steering part on one side and a top surface of the cutter housing. It is flat and the circumferential surface forms a part of a ring except for the destroyer gear part, and based on the axis of movement passing through the rotation center of the cutter blade and the rotation angle of the cutter blade,
The cutter housing circumferential surface and A power lawn mower that gradually increases the distance from the tip of the cutter blade, and further extends the front surface of the discharge gear part along the tangential direction from a point slightly advanced from the intersection of the axis and the front end of the circumferential surface of the cutter housing. Machine.