JPH0244931U

JPH0244931U -

Info

Publication number: JPH0244931U
Application number: JP12335188U
Authority: JP
Priority date: 1988-09-19
Filing date: 1988-09-19
Publication date: 1990-03-28
Anticipated expiration: 2003-05-19
Also published as: JPH0518901Y2

Description

[Brief explanation of drawings]

添付図面はこの考案の実施例を示し、第１図は
要部の側断面図、第２図は締着台の底面図、第３
図は第２図−線に沿う断面図、第４図は締着
台の他の実施例による平面図、第５図は第４図
−線に兎断面図、第６図はさらに別の実施例に
よる締着台の平面図、第７図は第６図−線に
沿う断面図、第８図は第６図−線に沿う断面
図である。１……ギヤケース、２……出力軸、２Ａ……大
径部、２Ｂ……小径部、３……刈刃抑え、３Ａ…
…フランジ部、３Ｂ……段部、３Ｃ……ボス部、
４……締着台、４Ａ……取付孔、４１……下面、
４２……ボス部、４３……テーパ面、４４……移
動子収容空間、４５……リム、４５Ａ……凹凸、
４６……雌ねじ孔、４７……クリツクねじ、４７
Ａ……ボール、４７Ｂ……押ばね、５……板ばね
、５Ａ……内周縁、６……ボーール、７……ねじ
台、７１……ボス部。 The attached drawings show an embodiment of this invention, in which Figure 1 is a side sectional view of the main part, Figure 2 is a bottom view of the fastening base, and Figure 3 is a bottom view of the fastening base.
The figures are a sectional view taken along the line in FIG. 2, FIG. 4 is a plan view of another embodiment of the fastening base, FIG. 5 is a sectional view taken along the line in FIG. 4, and FIG. 6 is a further embodiment. FIG. 7 is a plan view of the fastening base according to the example, FIG. 7 is a sectional view taken along the line 6--FIG. 8, and FIG. 8 is a sectional view taken along the line 6-- FIG. 1...Gear case, 2...Output shaft, 2A...Large diameter section, 2B...Small diameter section, 3...Mower blade retainer, 3A...
...Flange part, 3B...Step part, 3C...Boss part,
4...Tightening base, 4A...Mounting hole, 41...Bottom surface,
42...Boss portion, 43...Tapered surface, 44...Movers housing space, 45...Rim, 45A...Irregularities,
46...Female screw hole, 47...Click screw, 47
A...Ball, 47B...Press spring, 5...Leaf spring, 5A...Inner peripheral edge, 6...Ball, 7...Screw head, 71...Boss portion.

Claims

[Scope of utility model registration request]

The main operating rod has an engine at one end, a gear case at the other end, and a cutting blade holder attached to the output shaft of this gear case. A mower blade attachment device for a brush cutter, which is equipped with a mower blade fastening base for attaching a mower blade, has a plurality of pawl pieces formed in a mounting hole that is drilled in the center and has a diameter that allows the output shaft to be inserted with sufficient clearance around the output shaft. a fastening base and a mounting hole of the fastening base;
The fastening table is equipped with a screw base that can be screwed onto the output shaft, and the fastening base is housed in an internal space and moves toward the outer periphery due to centrifugal force and rises slightly. and a friction plate that presses against the cutting blade retainer, and the screw head has a receiving piece that expands in the radial direction, and when this receiving piece is stacked on the claw piece of the clamping stand, both are rotated by a click mechanism. Further, a mower blade attachment device for a brush cutter, characterized in that the mower blade is integrated in the direction of the output axis and is configured to frictionally fix the mower blade between the friction plate and the mower blade retainer at a predetermined number of revolutions or more.