JPH0214926U

JPH0214926U -

Info

Publication number: JPH0214926U
Application number: JP9341588U
Authority: JP
Priority date: 1988-07-14
Filing date: 1988-07-14
Publication date: 1990-01-30
Anticipated expiration: 2003-07-14
Also published as: JPH0538579Y2

Description

[Brief explanation of drawings]

第１〜４図は本考案の一実施例を示し、第１図
は芝刈機の側面図、第２図はその要部断面図、第
３図は第２図の−線断面図、第４図は同−
線断面図である。１は芝刈機、２はカツターハウジング、３は前
輪、４は後輪、５はハンドル、６はエンジン、６
ａはエンジンケース、７，７ａ，７ｂはカツター
ブレード、８はクランクシヤフト、９はクラツチ
・ブレーキ機構、１０はキー、１１は回転プレー
ト、１２，２３，３０はスプリング、１３はクラ
ツチデイスク、１４はストツパープレート、１５
はブレードホルダープレート、１６は連結ピン、
１７はブレード取付円筒、１８，２５はベアリン
グ、１９はワツシヤ、２０，２２はボルト、２１
はブレーキプレート、２１ａはブレーキ部、２１
ｂは凹み部、２４はコントロールプレート、２４
ａはカム溝、２６は止め輪、２７はボール、２８
はボールリテーナー、２９はワイヤー、３１は取
付孔、３２はナツト、３３，４３は突起、３４は
刃部、３５は羽根、３６はスペーサー、３７，４
０は中央部、３８は両側部、３９，４１は傾斜部
、４２は突起係合孔。 Figures 1 to 4 show an embodiment of the present invention, with Figure 1 being a side view of the lawn mower, Figure 2 being a cross-sectional view of its main parts, Figure 3 being a cross-sectional view taken along the - line in Figure 2, and Figure 4 being a side view of the lawn mower. The figure is the same.
FIG. 1 is a lawn mower, 2 is a cutter housing, 3 is a front wheel, 4 is a rear wheel, 5 is a handle, 6 is an engine, 6
a is an engine case, 7, 7a, 7b are cutter blades, 8 is a crankshaft, 9 is a clutch/brake mechanism, 10 is a key, 11 is a rotating plate, 12, 23, 30 is a spring, 13 is a clutch disk, 14 is a stopper plate, 15
is the blade holder plate, 16 is the connecting pin,
17 is a blade mounting cylinder, 18, 25 is a bearing, 19 is a washer, 20, 22 is a bolt, 21
is a brake plate, 21a is a brake part, 21
b is a concave portion, 24 is a control plate, 24
a is a cam groove, 26 is a retaining ring, 27 is a ball, 28
is a ball retainer, 29 is a wire, 31 is a mounting hole, 32 is a nut, 33, 43 are protrusions, 34 is a blade, 35 is a blade, 36 is a spacer, 37, 4
0 is a center portion, 38 is a side portion, 39 and 41 are inclined portions, and 42 is a protrusion engagement hole.

Claims

[Claims for Utility Model Registration] (1) A lawnmower equipped with at least a pair of cutter blades supported by a rotary drive shaft, extending in opposite directions, having a cutting edge at the tip, and disposed above and below, A plate is provided above the cutter blades, and the inclined lower surface of this plate presses the upper cutter blade to tilt it downward, so that the cutting height positions of the blades of the pair of cutter blades are the same. A lawn mower characterized by: (2) In a lawn mower equipped with at least a pair of cutter blades supported by a rotary drive shaft and extending in opposite directions and having blades at their tips and arranged one above the other, the upper cutter blade has a A plate is provided, and a protrusion protruding from the lower surface of the plate presses the upper cutter blade to tilt it downward, so that the cutting height positions of the blade portions of the pair of cutter blades are the same. Lawn mower.