JPH0132512Y2 - - Google Patents
Info
- Publication number
- JPH0132512Y2 JPH0132512Y2 JP1983023596U JP2359683U JPH0132512Y2 JP H0132512 Y2 JPH0132512 Y2 JP H0132512Y2 JP 1983023596 U JP1983023596 U JP 1983023596U JP 2359683 U JP2359683 U JP 2359683U JP H0132512 Y2 JPH0132512 Y2 JP H0132512Y2
- Authority
- JP
- Japan
- Prior art keywords
- air
- housing
- engine
- gap
- air intake
- 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.)
- Expired
Links
- 238000001816 cooling Methods 0.000 claims description 4
- 239000010705 motor oil Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 description 7
- 244000025254 Cannabis sativa Species 0.000 description 2
- 241001494496 Leersia Species 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Harvester Elements (AREA)
Description
【考案の詳細な説明】
本考案は、縦軸回転刃型（通称ロータリー式）
動力芝刈機の刈芝収納用空気の取入装置に係り、
刈り高さを低くした場合においても十分な空気量
が得られて芝刈性能を向上し、その空気でエンジ
ンの潤滑油を冷却する作用も持つている空気取入
装置を得ることを目的とする。[Detailed explanation of the invention] This invention is a vertical axis rotating blade type (commonly known as a rotary type).
Regarding the air intake device for storing grass clippings on power lawn mowers,
To provide an air intake device which improves lawn mowing performance by obtaining a sufficient amount of air even when the mowing height is lowered, and which also has the effect of cooling engine lubricating oil with the air.
図面に示す実施例について具体的に説明する
と、第１図は本考案を適用するに適する歩行型の
ロータリー式の動力芝刈機を例示するもので、１
は水平回転刈刃２を覆い後部が刈芝収納袋３に通
じているハウジング、４はエンジン、５は車輪、
６はハンドルである。第２図中７はエンジンのオ
イルパン、８はエンジンの出力軸で摩擦クラツチ
機構９を介して刈刃軸１０に伝動するものである
が、そのクラツチ機構９は例えば特公昭55−
50642号公報に開示のもの、その他の公知のもの
が適用されるので図に省略した。 To specifically explain the embodiment shown in the drawings, FIG. 1 illustrates a walk-behind rotary power lawn mower to which the present invention is applicable.
is a housing that covers the horizontal rotary cutting blade 2 and whose rear part is connected to the cut grass storage bag 3; 4 is an engine; 5 is a wheel;
6 is a handle. In Fig. 2, 7 is the oil pan of the engine, and 8 is the output shaft of the engine, which transmits power to the cutting blade shaft 10 via a friction clutch mechanism 9.
Since the one disclosed in Japanese Patent No. 50642 and other known ones are applicable, they are omitted from the figure.
本考案は、上記クラツチ機構９の側面を包囲す
るケース１１の上部開口面１２、即ちハウジング
１のエンジン下の上面１３と、エンジン４のスカ
ート部１４との間に隙間１５を形成し、その環状
隙間内に刈刃２の回転でハウジング１内に向つて
吸入される空気に対する整流板１６を半径方向に
対して斜めに、且つその整流板１６をエンジン４
のオイルパン７と一体に冷却フイン状に設けたも
のである。 In the present invention, a gap 15 is formed between the upper opening surface 12 of the case 11 surrounding the side surface of the clutch mechanism 9, that is, the upper surface 13 of the housing 1 below the engine, and the skirt portion 14 of the engine 4. The rectifying plate 16 for the air sucked into the housing 1 by the rotation of the cutting blade 2 in the gap is arranged obliquely with respect to the radial direction, and the rectifying plate 16 is arranged so as to be connected to the engine 4.
It is provided integrally with the oil pan 7 in the form of a cooling fin.
この種の芝刈機は一般に、刈刃の回転または刈
刃と一体に回るフアンの作用によつてハウジング
１内に生じる気流で刈つた芝を後方に飛ばして袋
３に収納する。その空気は、普通ハウジングの周
縁の地面との隙間から吸入されていた。ところが
最近の安全規則で上記の隙間が狭くなつた。特に
刈高さが低い芝刈機では吸入空気量が不足し、芝
刈性能を低下させる傾向がある。 This type of lawn mower generally blows the cut grass backwards using an airflow generated within the housing 1 by the rotation of the cutting blade or the action of a fan that rotates integrally with the cutting blade, and stores it in the bag 3. The air was normally drawn in through the gap between the housing and the ground. However, recent safety regulations have narrowed this gap. In particular, lawn mowers with a low cutting height tend to have insufficient intake air, which tends to reduce mowing performance.
そこで本考案は前記のように、エンジン４とハ
ウジング１の間に空気取入隙間１５を設けてハウ
ジング１の下面周縁からの吸入空気量を補う構成
としたもので、刈高さが低い時でも十分な吸入空
気量が得られ、高い芝刈性能を保つことができ
る。その環状の隙間１５に吸入空気整流板１６が
設けられているから、空気は旋回的に吸入されて
刈芝の収納袋への搬送効率を向上すると共に、そ
の整流板１６はエンジン４のオイルパン７と一体
に冷却フイン状に設けられているから、整流板１
６に触れる大量の空気によつてオイルパン７内の
潤滑油が効率よく冷却される。さらにハウジング
１の上面に付着した大きな枯葉等が吸入されて
も、その枯葉は旋回による遠心力で外方へ寄せら
れながら送られるので、内部のクラツチ機構９等
にからまることはない。 Therefore, as described above, the present invention has a structure in which an air intake gap 15 is provided between the engine 4 and the housing 1 to supplement the amount of intake air from the lower peripheral edge of the housing 1, even when the cutting height is low. A sufficient amount of intake air can be obtained to maintain high mowing performance. Since the intake air baffle plate 16 is provided in the annular gap 15, the air is sucked in in a swirling manner to improve the efficiency of conveying the grass clippings to the storage bag. Since it is provided in the form of a cooling fin integrally with 7, the current plate 1
The lubricating oil in the oil pan 7 is efficiently cooled by the large amount of air that comes into contact with the oil pan 6. Furthermore, even if large dead leaves or the like attached to the upper surface of the housing 1 are sucked in, the dead leaves will be drawn outward by the centrifugal force caused by the rotation and will not become entangled with the internal clutch mechanism 9 or the like.
図のように、エンジン４のスカート部１４を上
げて隙間１５を作り、そのスカート部１４の下面
で整流板１６をオイルパン７とスカート部１４に
一体に形成すると、ハウジング１に加工する必要
がないから、ハウジング１を金属板でプレス成形
するのに適する。またどのような形式のハウジン
グにも適用することができる利点がある。 As shown in the figure, if the skirt part 14 of the engine 4 is raised to create a gap 15 and the baffle plate 16 is integrally formed on the oil pan 7 and the skirt part 14 at the bottom surface of the skirt part 14, it is not necessary to process the housing 1. Therefore, it is suitable for press-forming the housing 1 from a metal plate. Another advantage is that it can be applied to any type of housing.
第１図は本考案の空気取入装置を適用した縦軸
回転刃型動力芝刈機の一例を示す斜視図、第２図
は本考案空気取入装置の縦断側面図、第３図はオ
イルパン及びスカート部の拡大底面図。
１はハウジング、２は刈刃、４はエンジン、７
はオイルパン、１４はそスカート部、１３はハウ
ジング上面、１５は環状隙間、１６は整流板。
Fig. 1 is a perspective view showing an example of a vertical axis rotary blade power lawn mower to which the air intake device of the present invention is applied, Fig. 2 is a longitudinal cross-sectional side view of the air intake device of the present invention, and Fig. 3 is an oil pan. and an enlarged bottom view of the skirt portion. 1 is the housing, 2 is the cutting blade, 4 is the engine, 7
14 is an oil pan, 14 is a skirt portion, 13 is an upper surface of the housing, 15 is an annular gap, and 16 is a rectifying plate.
Claims (1)
スカート部と刈刃ハウジングの上面との間に空気
取入隙間を形成し、その隙間に空気整流板を、エ
ンジンのオイルパンと一体に冷却フイン状に設け
た芝刈機の空気取入装置。 In a vertical shaft rotary blade power lawn mower, an air intake gap is formed between the engine skirt and the top surface of the cutting blade housing, and an air straightening plate is installed in the gap in the form of cooling fins integrally with the engine oil pan. Lawn mower air intake device installed in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2359683U JPS59130419U (en) | 1983-02-19 | 1983-02-19 | lawn mower air intake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2359683U JPS59130419U (en) | 1983-02-19 | 1983-02-19 | lawn mower air intake device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59130419U JPS59130419U (en) | 1984-09-01 |
| JPH0132512Y2 true JPH0132512Y2 (en) | 1989-10-04 |
Family
ID=30154670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2359683U Granted JPS59130419U (en) | 1983-02-19 | 1983-02-19 | lawn mower air intake device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59130419U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0534504Y2 (en) * | 1985-05-17 | 1993-09-01 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5548310A (en) * | 1978-10-05 | 1980-04-07 | Matsushita Electric Works Ltd | Lawn mower |
-
1983
- 1983-02-19 JP JP2359683U patent/JPS59130419U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5548310A (en) * | 1978-10-05 | 1980-04-07 | Matsushita Electric Works Ltd | Lawn mower |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59130419U (en) | 1984-09-01 |
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