JPH0260530U

JPH0260530U -

Info

Publication number: JPH0260530U
Application number: JP13957888U
Authority: JP
Priority date: 1988-10-25
Filing date: 1988-10-25
Publication date: 1990-05-02
Anticipated expiration: 2003-04-07
Also published as: JPH0513143Y2

Description

[Brief explanation of drawings]

第１図はこの考案の第の実施例に係る刈払機を
示す斜視図、第２図は回転軸付近の一部断面側面
図、第３図はカツタの平面図、第４図は第３図の
―線断面図、第５図は第３図の―線断面
図、第６図はこの考案の第２の実施例に係るカツ
タを示す平面図、第７図は第６図の―線断面
図、第８図は第６図の―線断面図、第９図お
よび第１０図は従来のカツタを示す平面図である
。２…主杆、２ａ…一端部、２ｂ…他端部、３，
５０…カツタ、４…駆動装置、１０…回転軸、１
２…カツタの角部、１３ａ…外縁部、１４…辺中
央部、２１…第１の切込、２２…第２の切込、２
２ａ…側縁部、２３…第１の切刃、２４…第２の
切刃、５１…刃部、５１ａ…内端部、５１ｂ…外
端部、５３…切刃、５３ａ…切刃の角部、５４…
切込、Ａ…回転方向前側、Ｃ…径方向。 Fig. 1 is a perspective view showing a brush cutter according to the first embodiment of this invention, Fig. 2 is a partially sectional side view near the rotating shaft, Fig. 3 is a plan view of the cutter, and Fig. 4 is Fig. 3. 5 is a sectional view taken along the line ``-'' of FIG. 3, FIG. 6 is a plan view showing a cutter according to the second embodiment of this invention, and FIG. 8 is a sectional view taken along the line -- in FIG. 6, and FIGS. 9 and 10 are plan views showing conventional cutters. 2...Main rod, 2a...One end, 2b...Other end, 3,
50... cutter, 4... drive device, 10... rotating shaft, 1
2... Corner of the cutter, 13a... Outer edge, 14... Side center, 21... First cut, 22... Second cut, 2
2a...Side edge, 23...First cutting edge, 24...Second cutting edge, 51...Blade portion, 51a...Inner end, 51b...Outer end, 53...Cutting edge, 53a...Corner of cutting edge Department, 54...
Depth of cut, A...front side in rotational direction, C...radial direction.

Claims

[Scope of Claim for Utility Model Registration] (1) In a brush cutter equipped with a cutter at one end of a main rod held by an operator and a drive device for driving the cutter at the other end, the cutter has a planar shape. The cutter is formed from a polygonal plate material larger than a square, and its central part is fixed to a rotating shaft, and a first cut having a plane rectangular shape is formed at each corner of the cutter, and a plane rectangular cut is formed at the center of each side of the cutter. A triangular second cut is formed, a first cutting edge is provided at the outer edge on the front side in the rotational direction of the cutter between the first cut and the second cut, and A brush cutter characterized in that a second cutting blade connected to the first cutting blade is provided on the front side edge of the cut in the rotational direction. (2) In a brush cutter equipped with a cutter at one end of the main rod held by the operator and a drive device for driving the cutter at the other end, the cutter has a narrow inner end in the radial direction. , forming three blades whose outer ends are formed into a wide planar trapezoid, fixing the central part of the cutter to a rotating shaft, and providing a cutting edge on the front side edge of the blade in the rotational direction. A brush cutter characterized in that a cut is formed at the outer end of the cutting blade so that the corner of the outer end of the cutting blade is set at an acute angle when viewed from above.