JPH0135140Y2 - - Google Patents
Info
- Publication number
- JPH0135140Y2 JPH0135140Y2 JP1983124643U JP12464383U JPH0135140Y2 JP H0135140 Y2 JPH0135140 Y2 JP H0135140Y2 JP 1983124643 U JP1983124643 U JP 1983124643U JP 12464383 U JP12464383 U JP 12464383U JP H0135140 Y2 JPH0135140 Y2 JP H0135140Y2
- Authority
- JP
- Japan
- Prior art keywords
- scroll
- opening
- housing
- transmission
- storage section
- 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
- 230000005540 biological transmission Effects 0.000 claims description 19
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Harvester Elements (AREA)
Description
【考案の詳細な説明】
本考案は芝刈機のブレード及びミツシヨン等を
収納するハウジングの構造に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a housing that houses lawn mower blades, transmissions, etc.
従来の芝刈機は第１図の平面図に示すように、
ブレード１を囲むキヤツプ状のスクロール２と、
該スクロール２の後端に設けられ、ミツシヨン３
を収納する収納部４とを一体化してハウジング５
とし、このハウジング５の前部左右に前輪６，６
を、後部左右に後輪７，７をそれぞれ設け、ハウ
ジング５の後部から斜め上方にハンドルパイプ
８，８を延出し、ハウジング５上に載置したエン
ジンの動力を駆動軸９及びミツシヨン３を介して
後輪７，７に伝達し走行せしめるようにしてい
る。 As shown in the plan view of Fig. 1, the conventional lawn mower is
a cap-shaped scroll 2 surrounding the blade 1;
The transmission 3 is provided at the rear end of the scroll 2.
The housing 5 is integrated with the storage section 4 that stores the
Front wheels 6, 6 are mounted on the left and right sides of the front of this housing 5.
, rear wheels 7, 7 are provided on the rear left and right sides respectively, handle pipes 8, 8 extend obliquely upward from the rear of the housing 5, and the power of the engine mounted on the housing 5 is transmitted through the drive shaft 9 and the transmission 3. The power is transmitted to the rear wheels 7, 7 to drive the vehicle.
そして、エンジンの動力をミツシヨン３に伝え
るにはミツシヨン３の収納部４に開口部１０を形
成し、この開口部１０に駆動軸９を貫通せしめる
必要がある。このため従来の芝刈機にあつては、
前記開口部１０を、前記収納部４のスクロール２
側の面部であつて且つスクロール２の中心を通る
機体前後方向の中心線ｌ上に位置する部分に形成
するか、或いはそのまま中心線ｌから側方、即ち
図中想像線で示す位置に開口部１０を形成してい
る。 In order to transmit the power of the engine to the transmission 3, it is necessary to form an opening 10 in the housing portion 4 of the transmission 3 and to allow the drive shaft 9 to pass through this opening 10. For this reason, with conventional lawn mowers,
The opening 10 is connected to the scroll 2 of the storage section 4.
The opening may be formed on a side surface portion located on the center line l in the longitudinal direction of the aircraft passing through the center of the scroll 2, or alternatively, an opening may be formed on the side of the center line l, that is, at the position shown by the imaginary line in the figure. 10 is formed.
しかしながら、上記の如き構成とすると、開口
部１０はスクロール２の最後部に位置し、必然的
に開口部１０が後方に位置することとなり、ハウ
ジング５全体の長さが大きくなる。斯かる事情は
駆動軸９の代わりにベルトを用いた場合でも同様
である。 However, with the above configuration, the opening 10 is located at the rear end of the scroll 2, and the opening 10 is necessarily located at the rear, resulting in an increase in the overall length of the housing 5. The same situation holds true even when a belt is used instead of the drive shaft 9.
本考案はハウジング全体の長さを短くして、コ
ンパクト化と軽量化を可能とした芝刈機のハウジ
ング構造を提供することを目的とする。 The object of the present invention is to provide a lawn mower housing structure that can be made compact and lightweight by shortening the overall length of the housing.
この目的を達成すべく本考案は、駆動軸或いは
駆動ベルト等を貫通せしめるためにミツシヨン収
納部に形成する開口部の位置を、ブレードの回転
軸を通る機体前後方向の中心線を基準としてスク
ロールの中心を通る機体前後方向の中心線から左
右いずれかに偏位させたことを構成上の特徴とす
る。 In order to achieve this purpose, the present invention aims to set the position of the opening formed in the transmission storage part to allow the drive shaft or drive belt to pass through the scroll, with reference to the longitudinal centerline of the machine passing through the rotation axis of the blade. Its structural feature is that it is deviated to either the left or right from the longitudinal center line of the fuselage passing through the center.
以下に本考案の実施例を第２図及び第３図に基
づいて説明する。第２図は本考案に係るハウジン
グ構造を適用した芝刈機の概略平面図、第３図は
同芝刈機のハウジング内を示す断面図である。 Embodiments of the present invention will be described below with reference to FIGS. 2 and 3. FIG. 2 is a schematic plan view of a lawn mower to which the housing structure according to the present invention is applied, and FIG. 3 is a sectional view showing the inside of the housing of the lawn mower.
ハウジング２０は下方に向つて開放された平面
視円状のスクロール２１と、該スクロール２１の
後端に形成されるミツシヨン収納部２２とからな
り、これらスクロール２１と収納部２２はアルミ
ニウム合金などを鋳造することで一体的に成形さ
れる。そして、ハウジング２０の前部左右及び後
部左右には従来例と同様に前輪２３及び後輪２４
が設けられ、ハウジング２０の後部からは斜め後
方にハンドルパイプ２５が延設されている。 The housing 20 consists of a scroll 21 that is circular in plan view and is open downward, and a mission storage section 22 that is formed at the rear end of the scroll 21. The scroll 21 and the storage section 22 are made of cast aluminum alloy or the like. This allows it to be integrally formed. A front wheel 23 and a rear wheel 24 are provided on the front left and right sides and rear left and right sides of the housing 20, as in the conventional example.
A handle pipe 25 extends diagonally rearward from the rear of the housing 20.
一方、スクロール２１内にはブレード２６が回
転可能に配設されるとともに、中央部にフアン収
納部２７が設けられ、ブレード２６の回転に伴な
う風とフアンによる風によつて刈り取つた芝をス
クロール２１の内側に沿つて飛送せしめ、放出口
２８を通してハンドルパイプ２５，２５間などに
取り付けた袋体内に排出するようにしている。 On the other hand, a blade 26 is rotatably disposed inside the scroll 21, and a fan storage section 27 is provided in the center of the scroll 21. is sent along the inside of the scroll 21 and discharged through a discharge port 28 into a bag attached between the handle pipes 25, 25, etc.
また、ミツシヨンス収納部２２内にはガイド穴
２９ａを形成したガイド部材２９が固設され、該
ガイド穴２９ａにボルトなどの結着具３０を介し
てミツシヨン３１が支持されている。而して、結
着具３０を緩め、ミツシヨン３１の上下位置を調
整すれば、ブレード２６と地面との距離が変わる
ので、芝の刈込み深さを任意に調整することがで
きる。 Further, a guide member 29 having a guide hole 29a is fixedly installed in the mission storage portion 22, and a mission 31 is supported in the guide hole 29a via a fastener 30 such as a bolt. By loosening the binding tool 30 and adjusting the vertical position of the transmission 31, the distance between the blade 26 and the ground changes, so that the mowing depth of the lawn can be adjusted as desired.
また、収納部２２の前面即ちスクロール２１側
の面には開口部３２が形成され、この開口部３２
の下端線３２ａは前記スクロール２１の円弧状周
縁２ａと一致している。又、この開口部３２を貫
通して駆動軸３３が配設され、エンジンの出力軸
とミツシヨン３１とを連結し、ミツシヨン３１内
の歯車列を介して車軸３４を回転せしめ、芝刈機
を走行するようにしている。ここで、駆動軸３３
は前部軸３３ａと後部軸３３ｂをジヨイント３５
で連結してなり、ジヨイント３５は前部軸３３ａ
に固着され、このジヨイント３５に後部軸３３ｂ
がスプライン嵌合している。而して、ミツシヨン
３１の位置を上方に移動調整した場合には、後部
軸３３ｂがジヨイント３５内に更に入り込み、下
方に移動調整した場合には、ジヨイント３５内を
後部軸３３ｂが後退し、ミツシヨン３１の上下動
に伴う前後方向の変化量を吸収する。更に、開口
部３２の上端から前方に駆動軸３３のカバー３６
が延設されている。 Further, an opening 32 is formed on the front surface of the storage section 22, that is, the surface on the scroll 21 side.
The lower end line 32a coincides with the arcuate peripheral edge 2a of the scroll 21. Further, a drive shaft 33 is disposed passing through this opening 32, connecting the output shaft of the engine and the transmission 31, and rotating an axle 34 via a gear train within the transmission 31, thereby causing the lawn mower to travel. That's what I do. Here, the drive shaft 33
connects the front shaft 33a and rear shaft 33b to the joint 35.
The joint 35 is connected to the front shaft 33a.
This joint 35 is fixed to the rear shaft 33b.
are spline fitted. Therefore, when the position of the transmission 31 is adjusted upward, the rear shaft 33b moves further into the joint 35, and when adjusted downward, the rear shaft 33b moves backward inside the joint 35, and the mission It absorbs the amount of change in the front-rear direction due to the vertical movement of 31. Furthermore, the cover 36 of the drive shaft 33 is extended forward from the upper end of the opening 32.
has been extended.
ここで前記開口部３２は、スクロール２１の中
心を通る機体前後方向の中心線ｌから左右いずれ
か（実施例では左側、放出口２８と反対側）に偏
位しているので、該開口部３２はスクロール２１
の最後部よりも前方に位置することになり、その
分だけミツシヨン３１も前方に配置することがで
き、ミツシヨン収納部２２を前後方向に縮めるこ
とができる。したがつてブレード２６の回転軸２
６ａとミツシヨン収納部２２の後端との距離Ｌが
小さくなる。 Here, the opening 32 is offset to either the left or right (in the embodiment, the left side, the side opposite to the discharge port 28) from the center line l in the longitudinal direction of the aircraft passing through the center of the scroll 21. is scroll 21
The transmission 31 can be positioned forward of the rearmost part of the transmission mechanism 3, and the transmission 31 can be positioned forward accordingly, allowing the transmission storage portion 22 to be shortened in the front-rear direction. Therefore, the rotation axis 2 of the blade 26
The distance L between 6a and the rear end of the mission storage portion 22 becomes smaller.
上記の如きハウジング２０を鋳造するには、例
えば固定型と可動型とのパーテイングラインが開
口部３２の位置となるようにし、更にパーテイン
グラインの下端部がスクロール２１の周縁位置と
なるようにすればよい。 In order to cast the housing 20 as described above, for example, the parting line between the fixed mold and the movable mold is positioned at the opening 32, and the lower end of the parting line is positioned at the peripheral edge of the scroll 21. do it.
尚、図示例にあつては駆動軸３３によりエンジ
ンとミツシヨンとを連結せしめたが、駆動軸の代
わりにベルト或いはチエーン等を用いる場合であ
つても本願考案に係るハウジング構造を適用し得
る。 In the illustrated example, the engine and the transmission are connected by the drive shaft 33, but the housing structure according to the present invention can be applied even when a belt or chain is used instead of the drive shaft.
以上に説明した如く本考案によれば、駆動軸等
の駆動部材を貫通させるために、芝刈機のハウジ
ングに形成する開口部を、スクロールの中心を通
る機体前後の中心線から左右いずれかに偏位させ
たので、ハウジング全体をコンパクトにすること
ができ、且つ軽量化も達成でき、したがつて使用
しやすく、また使用しない場合の収納スペースが
小さくて済む芝刈機を提供し得る等多くの効果を
発揮する。 As explained above, according to the present invention, the opening formed in the lawnmower housing is offset to either the left or right from the front and rear center line passing through the center of the scroll, in order to pass the drive member such as the drive shaft. As a result, the entire housing can be made compact and lightweight, making it easy to use and providing a lawn mower that requires less storage space when not in use. demonstrate.
第１図は従来の芝刈機の概略平面図、第２図は
本考案に係るハウジング構造を適用した芝刈機の
概略平面図、第３図は同芝刈機のハウジング内部
を示す縦断面図である。
尚、図面中２０はハウジング、２１はスクロー
ル、２２はミツシヨン収納部、２６はブレード、
２６ａはブレードの回転軸、２８は放出口、３１
はミツシヨン、３２は開口部３２ａは開口部の下
端縁、３３は駆動軸、ｌは機体前後方向の中心線
である。
Fig. 1 is a schematic plan view of a conventional lawn mower, Fig. 2 is a schematic plan view of a lawn mower to which the housing structure of the present invention is applied, and Fig. 3 is a longitudinal sectional view showing the inside of the housing of the lawn mower. . In addition, in the drawing, 20 is a housing, 21 is a scroll, 22 is a mission storage part, 26 is a blade,
26a is the rotating shaft of the blade, 28 is the discharge port, 31
32 is a transmission, 32 is an opening 32a, is a lower edge of the opening, 33 is a drive shaft, and 1 is a center line in the longitudinal direction of the fuselage.
Claims (1)
ルと、該スクロールの後端側に設けられ、ミツシ
ヨンを収める収納部とからなるハウジングにおい
て、前記収納部の前記スクロール側の面部に開口
部を形成して該開口部にエンジンからの動力をミ
ツシヨンを介して車軸に伝える動力伝達部材を挿
通し、前記開口部を前記スクロールの中心を通る
機体前後方向の中心線から左右いずれかに偏位し
て形成したことを特徴とする芝刈機のハウジング
構造。 In a housing consisting of a circular scroll in plan view surrounding a lawn mowing blade and a storage section provided on the rear end side of the scroll and accommodating a transmission, an opening is formed in a surface of the storage section on the scroll side. A power transmission member that transmits power from the engine to the axle through the transmission is inserted into the opening, and the opening is offset to the left or right from a center line in the longitudinal direction of the aircraft passing through the center of the scroll. The housing structure of the lawn mower is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12464383U JPS6031224U (en) | 1983-08-10 | 1983-08-10 | lawn mower housing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12464383U JPS6031224U (en) | 1983-08-10 | 1983-08-10 | lawn mower housing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6031224U JPS6031224U (en) | 1985-03-02 |
| JPH0135140Y2 true JPH0135140Y2 (en) | 1989-10-26 |
Family
ID=30284060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12464383U Granted JPS6031224U (en) | 1983-08-10 | 1983-08-10 | lawn mower housing structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6031224U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3411275A (en) * | 1966-07-05 | 1968-11-19 | Sunbeam Corp | Self-propelled rotary lawn mower |
| US4158280A (en) * | 1977-07-28 | 1979-06-19 | Amf Incorporated | Rotary lawn mower |
| US4159614A (en) * | 1977-10-27 | 1979-07-03 | Amf Incorporated | Lawn mower controls |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS591466Y2 (en) * | 1978-02-02 | 1984-01-17 | 本田技研工業株式会社 | self-propelled lawn mower |
-
1983
- 1983-08-10 JP JP12464383U patent/JPS6031224U/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3411275A (en) * | 1966-07-05 | 1968-11-19 | Sunbeam Corp | Self-propelled rotary lawn mower |
| US4158280A (en) * | 1977-07-28 | 1979-06-19 | Amf Incorporated | Rotary lawn mower |
| US4159614A (en) * | 1977-10-27 | 1979-07-03 | Amf Incorporated | Lawn mower controls |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6031224U (en) | 1985-03-02 |
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