JPH035332U - - Google Patents
Info
- Publication number
- JPH035332U JPH035332U JP6431989U JP6431989U JPH035332U JP H035332 U JPH035332 U JP H035332U JP 6431989 U JP6431989 U JP 6431989U JP 6431989 U JP6431989 U JP 6431989U JP H035332 U JPH035332 U JP H035332U
- Authority
- JP
- Japan
- Prior art keywords
- cutting blade
- friction plate
- blade holder
- fastening base
- centrifugal governor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Harvester Elements (AREA)
Description
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図は締着台の断面図、第３
図は締着台の平面図、第４図は他の実施例による
要部の側断面図、第５図は第４図の−線に沿
う断面図、第６図はさらに他の実施例の要部側断
面図、第７図は第６図−に沿つた断面図、第
８図は締着台の他の実施例による平面図、第９図
は第８図−線に沿う断面図、第１０図はさら
に別の実施例による締着台の平面図、第１１図は
第１０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……雌ねじ孔、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
、５……板ばね、６，７，８……遠心ガバナ、６
１……支軸、６２……駆動カム、６３……ガバナ
アーム、６４……重錘、７……ボール。
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 sectional view of the fastening base, and Figure 3 is a sectional view of the fastening base.
4 is a side sectional view of the main part of another embodiment, FIG. 5 is a sectional view taken along the line - in FIG. 4, and FIG. 6 is a sectional view of still another embodiment. 7 is a sectional view taken along the line of FIG. 6, FIG. 8 is a plan view of another embodiment of the fastening base, and FIG. 9 is a sectional view taken along the line of FIG. FIG. 10 is a plan view of a fastening base according to yet another embodiment, and FIG. 11 is a sectional view taken along the line of FIG. 10. 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...Female screw hole, 41...Bottom surface, 42...Boss portion, 43...Tapered surface, 44...
Mover housing space, 45... Rim, 45A... Unevenness, 5... Leaf spring, 6, 7, 8... Centrifugal governor, 6
1... Support shaft, 62... Drive cam, 63... Governor arm, 64... Weight, 7... Ball.
Claims (1)
ギヤケースをもち、このギヤケースの出力軸に取
付けられている刈刃抑えと、出力軸に取付けられ
、この刈刃抑えとの間で刈刃を取付ける刈刃の締
着台とを備える刈払機の刈刃取付け装置において
、前記締着台は前記出力軸に対して螺合する取付
部と、内部に形成した収容空間に収容されていて
遠心力で移動する移動子と、この移動子の移動に
より刈刃を刈刃抑えに対して圧接する摩擦板と、
締着台に取り付けられている遠心ガバナと、この
遠心ガバナに発生する遠心力により前記締着台を
押し下げる駆動部とを備え、前記摩擦板は締着台
にその内周縁が固定されていて、刈刃抑えとの間
で所定回転数以上になつたとき刈刃を摩擦固定し
、前記駆動部は前記遠心ガバナの運動で締着台と
刈刃抑えとの間を拡大することで前記取付部を緩
みどめするように構成したことを特徴とする刈払
機の刈刃取付け装置。 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. In the mower blade mounting device for a brush cutter, the clamping base includes a mounting portion that is threadedly engaged with the output shaft, and a mounting space that is accommodated in a storage space that is formed inside. A movable element that moves by force, a friction plate that presses the cutting blade against the cutting blade retainer by the movement of the moving element,
The friction plate includes a centrifugal governor attached to a fastening base, and a drive unit that pushes down the fastening base by centrifugal force generated in the centrifugal governor, and the inner peripheral edge of the friction plate is fixed to the fastening base, The cutting blade is fixed by friction between the cutting blade holder and the cutting blade holder when the number of rotations exceeds a predetermined number, and the drive unit expands the space between the clamping base and the cutting blade holder by the movement of the centrifugal governor, thereby tightening the attachment part. A mower blade attachment device for a brush cutter, characterized in that the mower blade is configured to prevent the blade from loosening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6431989U JPH0621301Y2 (en) | 1989-05-31 | 1989-05-31 | Cutting blade mounting device for brush cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6431989U JPH0621301Y2 (en) | 1989-05-31 | 1989-05-31 | Cutting blade mounting device for brush cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH035332U true JPH035332U (en) | 1991-01-18 |
| JPH0621301Y2 JPH0621301Y2 (en) | 1994-06-08 |
Family
ID=31595157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6431989U Expired - Lifetime JPH0621301Y2 (en) | 1989-05-31 | 1989-05-31 | Cutting blade mounting device for brush cutter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0621301Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008050063A (en) * | 2006-08-22 | 2008-03-06 | Nippon Filing Co Ltd | Frow rack and assembling member |
-
1989
- 1989-05-31 JP JP6431989U patent/JPH0621301Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008050063A (en) * | 2006-08-22 | 2008-03-06 | Nippon Filing Co Ltd | Frow rack and assembling member |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0621301Y2 (en) | 1994-06-08 |
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