JPH0556715A - Riding lawn mower - Google Patents
Riding lawn mowerInfo
- Publication number
- JPH0556715A JPH0556715A JP24462091A JP24462091A JPH0556715A JP H0556715 A JPH0556715 A JP H0556715A JP 24462091 A JP24462091 A JP 24462091A JP 24462091 A JP24462091 A JP 24462091A JP H0556715 A JPH0556715 A JP H0556715A
- Authority
- JP
- Japan
- Prior art keywords
- engine
- belt pulley
- transmission
- crankshaft
- lawn mower
- 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)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、乗用芝刈機に関し、特
にそのエンジン配置と後輪及びカッター装置への動力伝
達装置の構成に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a riding lawn mower, and more particularly to the arrangement of an engine and the structure of a power transmission device for a rear wheel and a cutter.
【０００２】[0002]
【従来の技術】先ず、図３は乗用芝刈機における従来の
エンジン後部配置例を示したもので、即ち、車体３１後
部上に、シリンダ部４３を側方に向けたエンジン４３を
配置して、その下方に突出したクランク軸４５から、図
４のように、左右の後輪間に配置したトランスミッショ
ン３３へ動力を伝達する第１ベルトプーリ装置３７を設
けるとともに、この第１ベルトプーリ装置３７から、車
体下で前後輪間に配置したカッター装置３５へ動力を伝
達する第２ベルトプーリ装置３９を更に設けている。ま
た、図５及び図６は従来のエンジン中央配置及びベルト
プーリ装置構成例を示したもので、即ち、車体５１中央
部上の座席下にエンジン６１を配置して、同様に、その
下方突出のクランク軸６５から、後輪間のトランスミッ
ション５３へ動力を伝達する第１ベルトプーリ装置５７
を設けるとともに、この第１ベルトプーリ装置５７か
ら、前後輪間のカッター装置５５へ動力を伝達する第２
ベルトプーリ装置５９を更に設けている。2. Description of the Related Art First, FIG. 3 shows an example of a conventional rear engine arrangement in a riding lawn mower, that is, an engine 43 having a cylinder portion 43 oriented laterally is arranged on the rear portion of a vehicle body 31, As shown in FIG. 4, a first belt pulley device 37 for transmitting power from a crankshaft 45 protruding downward to the transmission 33 disposed between the left and right rear wheels is provided, and from the first belt pulley device 37, A second belt pulley device 39 is further provided for transmitting power to the cutter device 35 arranged between the front and rear wheels under the vehicle body. Further, FIGS. 5 and 6 show a conventional engine center arrangement and a belt pulley device configuration example, that is, an engine 61 is arranged under a seat on a center portion of a vehicle body 51, and similarly, a downward projection of the engine 61 is arranged. A first belt pulley device 57 that transmits power from the crankshaft 65 to the transmission 53 between the rear wheels.
And a second power transmission device for transmitting power from the first belt pulley device 57 to the cutter device 55 between the front and rear wheels.
A belt pulley device 59 is further provided.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、図３及
び図４に示した従来構成例によれば、座席３２後方にエ
ンジン４１を配置したことにより、座席３２への乗車位
置を、操作性及び安定性の面から良い位置に保てるが、
クランク軸４５がトランスミッション３３の上にくるた
め、図４のように、駆動伝達系である第１及び第２のベ
ルトプーリ装置３７，３９が複雑になる問題がある。そ
して、図３のように、エアクリーナ４７及びマフラー４
９の位置がエンジン４１の後方に限定されるので、吸気
系及び排気系の合理的な配置が取れないといった問題も
ある。また、図５及び図６に示した従来構成例によれ
ば、座席５２下にエンジン６１を配置したことにより、
操作性及び安定性が良い乗車位置にしようとすると、エ
ンジン６１の地上高を下げなければならず、車体構造が
複雑になる問題がある。However, according to the conventional configuration example shown in FIGS. 3 and 4, by disposing the engine 41 behind the seat 32, the riding position on the seat 32 can be operated and stabilized. You can keep it in a good position from the viewpoint of sex,
Since the crankshaft 45 is located above the transmission 33, there is a problem that the first and second belt pulley devices 37 and 39, which are drive transmission systems, become complicated as shown in FIG. Then, as shown in FIG. 3, the air cleaner 47 and the muffler 4
Since the position of 9 is limited to the rear of the engine 41, there is also a problem that a rational arrangement of the intake system and the exhaust system cannot be achieved. Further, according to the conventional configuration example shown in FIGS. 5 and 6, by disposing the engine 61 under the seat 52,
In order to obtain a riding position with good operability and stability, the ground clearance of the engine 61 has to be lowered, which causes a problem that the vehicle body structure becomes complicated.
【０００４】そこで本発明の目的は、座席への乗車位置
を操作性及び安定性が良い位置に保ったままで、後輪及
びカッター装置への駆動伝達系をシンプルに構成できる
とともに、吸気系及び排気系の合理的配置も可能とした
乗用芝刈機を提供することにある。Therefore, an object of the present invention is to make it possible to simply configure the drive transmission system to the rear wheels and the cutter device while keeping the riding position on the seat at a position where the operability and stability are good, and to introduce the intake system and the exhaust system. It is to provide a riding lawn mower that enables a rational arrangement of the system.
【０００５】[0005]
【課題を解決するための手段】以上の課題を解決すべく
本発明は、車体上に座席及びエンジンを配置して、エン
ジン下に突出するクランク軸からベルトプーリ装置を介
して、車体後部で左右の後輪間に配置したトランスミッ
ションと、車体下で前後輪間に配置したカッター装置と
に動力を伝達するようにした乗用芝刈機において、シリ
ンダ部を後方へ向けたエンジンを車体後部上に配置し
て、そのクランク軸をトランスミッションの前方に配置
し、クランク軸とその後方のトランスミッションを結ぶ
ベルトプーリ装置を設けるとともに、クランク軸とその
前方のカッター装置とを結ぶベルトプーリ装置を設けた
ことを特徴とする。SUMMARY OF THE INVENTION In order to solve the above problems, the present invention has a seat and an engine arranged on a vehicle body, and a left and right portion at the rear of the vehicle body via a belt pulley device from a crankshaft projecting below the engine. In a riding lawn mower designed to transmit power to a transmission arranged between the rear wheels and a cutter device arranged between the front and rear wheels under the vehicle body, an engine with the cylinder part facing rearward is arranged on the rear part of the vehicle body. The crankshaft is arranged in front of the transmission, a belt pulley device connecting the crankshaft and the transmission behind the crankshaft is provided, and a belt pulley device connecting the crankshaft and the cutter device in front of the crankshaft is provided. To do.
【０００６】[0006]
【作用】先ず、座席後方にエンジンを配置したので、乗
車位置を操作性及び安定性が良い位置に保てる。しか
も、エンジンのクランク軸が、前後輪間のカッター装置
の後方で後輪間のトランスミッションの前方に位置し
て、このクランク軸から、別個のベルトプーリ装置を用
いて前後のカッター装置と後輪駆動用トランスミッショ
ンとに動力を取り出すようにしたので、後輪及びカッタ
ー装置への駆動伝達系がシンプルな構成となる。そし
て、エンジンのシリンダ部が後方へ向いているので、そ
の左右にエアクリーナとマフラを分けた配置が可能とな
り、即ち、吸気系及び排気系の合理的配置が可能とな
る。First, since the engine is arranged behind the seat, the riding position can be maintained at a position where operability and stability are good. Moreover, the crankshaft of the engine is located behind the cutter device between the front and rear wheels and in front of the transmission between the rear wheels, and from this crankshaft, a separate belt pulley device is used to drive the front and rear cutter devices and the rear wheels. Since power is taken out to the transmission for the vehicle, the drive transmission system to the rear wheels and the cutter device has a simple structure. Since the cylinder portion of the engine faces rearward, the air cleaner and the muffler can be separately arranged on the left and right sides thereof, that is, the intake system and the exhaust system can be reasonably arranged.
【０００７】[0007]
【実施例】以下に本発明の実施例を図１及び図２に基づ
いて説明する。本発明を適用した乗用芝刈機の概略構成
を示す図１及び図２において、１は車体フレーム、２は
ボディパネル、３は前輪、４は後輪、５はハンドル、６
は座席、７はトランスミッション、１１はエンジン、１
６はカッター装置、２１，２５はベルトプーリ装置であ
る。Embodiments of the present invention will be described below with reference to FIGS. 1 and 2. 1 and 2 showing a schematic configuration of a riding lawn mower to which the present invention is applied, 1 is a body frame, 2 is a body panel, 3 is a front wheel, 4 is a rear wheel, 5 is a handlebar, 6
Is a seat, 7 is a transmission, 11 is an engine, 1
6 is a cutter device and 21 and 25 are belt pulley devices.
【０００８】実施例の乗用芝刈機において、座席６後方
で車体フレーム１後部上には、シリンダ部１２を後方へ
向けてエンジン１１が配置されている。このエンジン１
１の下方に突出した垂直方向のクランク軸１３は、車体
フレーム１下方において、前輪３及び後輪４間に配置さ
れたカッター装置１６の後方で、且つ左右の後輪４，４
間に配置された後輪駆動用トランスミッション７の前方
に位置して臨んでいる。In the riding lawn mower of the embodiment, an engine 11 is arranged on the rear portion of the vehicle body frame 1 behind the seat 6 with the cylinder portion 12 facing rearward. This engine 1
The vertical crankshaft 13 that protrudes downward from the vehicle body 1 is located below the vehicle body frame 1 behind the cutter device 16 disposed between the front wheel 3 and the rear wheel 4 and on the left and right rear wheels 4, 4.
It is located in front of the rear-wheel drive transmission 7 arranged in between.
【０００９】そして、トランスミッション７には、上方
に突出する入力軸８と、左右に突出する後輪駆動軸９，
９が組み込まれており、このトランスミッション７は、
シリンダ部１２の下方に位置している。更に、エンジン
１１の後方へ向いたシリンダ部１２の左右には、エアク
リーナ１４とマフラー１５が分けて配設されており、こ
れら補機類は左右の後輪４，４間に位置している。ま
た、カッター装置１６は、カッターデッキ１７に略水平
回転するカッターブレード１８を収納したもので、１９
はそのブレート回転軸である。The transmission 7 has an input shaft 8 projecting upward, a rear wheel drive shaft 9 projecting left and right,
9 is built in, and this transmission 7
It is located below the cylinder portion 12. Further, an air cleaner 14 and a muffler 15 are separately arranged on the left and right of the cylinder portion 12 facing the rear of the engine 11, and these accessories are located between the left and right rear wheels 4 and 4. Further, the cutter device 16 has a cutter deck 18 which houses a cutter blade 18 which rotates substantially horizontally.
Is the axis of rotation of the plate.
【００１０】以上において、クランク軸１３とその後方
のトランスミッション７とを結ぶベルトプーリ装置２１
を設けるとともに、クランク軸１３とその前方のカッタ
ー装置１６とを結ぶベルトプーリ装置２５を設けてい
る。即ち、クランク軸１３下部に上下の駆動プーリ２
２，２６を設けて、その上方の駆動プーリ２２と、トラ
ンスミッション７上に突出した入力軸８上部に設けた被
動プーリ２３とに動力伝達ベルト２４を掛装するととも
に、下方の駆動プーリ２６と、カッターデッキ１７上に
突出したブレード回転軸１９上部に設けた被動プーリ２
７とに動力伝達ベルト２８を掛装している。In the above, the belt pulley device 21 connecting the crankshaft 13 and the transmission 7 behind it.
And a belt pulley device 25 that connects the crankshaft 13 and the cutter device 16 in front of the crankshaft 13. That is, the upper and lower drive pulleys 2 are provided below the crankshaft 13.
2, 26 are provided, and the power transmission belt 24 is hung on the drive pulley 22 above the drive pulley 22 and the driven pulley 23 provided on the upper portion of the input shaft 8 protruding above the transmission 7, and the drive pulley 26 below. The driven pulley 2 provided on the upper portion of the blade rotation shaft 19 protruding above the cutter deck 17
A power transmission belt 28 is hung on 7 and.
【００１１】そして、クランク軸１３から後方のトラン
スミッション７へのベルトプーリ装置２１には、クラッ
チプーリ２１ａが設けられている。また、クランク軸１
３から前方のカッター装置１６へのベルトプーリ装置２
５にも、クラッチプーリ２８ａが設けられており、２８
ｂはその揺動アーム、２９はアイドルプーリである。The belt pulley device 21 extending from the crankshaft 13 to the rear transmission 7 is provided with a clutch pulley 21a. Also, the crankshaft 1
Belt pulley device 2 from 3 to cutter device 16 in front
5 is also provided with a clutch pulley 28a,
Reference numeral b is its swing arm, and 29 is an idle pulley.
【００１２】以上のエンジン配置及びベルトプーリ装置
構成による乗用芝刈機としたので、座席６への乗車位置
を操作性及び安定性が良い位置に保てるとともに、後輪
４及びカッター装置１６への駆動伝達系を、クランク軸
１３から別個のベルトプーリ装置２１，２５によりシン
プルに構成できるものとなっている。更に、エンジン１
１の後方へ向けたシリンダ部１２の左右にエアクリーナ
１４マフラ１５を分けた配置として、吸気系及び排気系
を合理的に配置できるものとなっている。Since the riding lawn mower has the above-described engine arrangement and belt pulley device configuration, the riding position on the seat 6 can be maintained at a position with good operability and stability, and drive transmission to the rear wheels 4 and the cutter device 16 can be performed. The system can be simply configured from the crankshaft 13 by separate belt pulley devices 21 and 25. Furthermore, engine 1
The air cleaner 14 and the muffler 15 are separately arranged on the left and right sides of the cylinder portion 12 facing the rear of 1, so that the intake system and the exhaust system can be reasonably arranged.
【００１３】尚、具体的な細部構成等については、実施
例の他、任意に変更可能であることは勿論である。Incidentally, it is needless to say that the specific detailed configuration and the like can be arbitrarily changed other than the embodiment.
【００１４】[0014]
【発明の効果】以上のように本発明の乗用芝刈機によれ
ば、座席後方にエンジンを配置したことにより、乗車位
置を操作性及び安定性が良い位置に保つことができるこ
とに加えて、前後輪間のカッター装置後方で後輪間のト
ランスミッション前方に位置するクランク軸から、別個
のベルトプーリ装置を用いて前後のカッター装置と後輪
駆動用トランスミッションとに動力を取り出すようにし
たことにより、後輪及びカッター装置への駆動伝達系を
シンプルに構成することができ、更に、エンジンのシリ
ンダ部を後方へ向けたことにより、その左右にエアクリ
ーナとマフラを分けて配置することができ、従って、吸
気系及び排気系を合理的に配置することができる。As described above, according to the riding lawn mower of the present invention, by disposing the engine at the rear of the seat, the riding position can be maintained at a position with good operability and stability, By using a separate belt pulley device to extract power to the front and rear cutter devices and the rear-wheel drive transmission from the crankshaft located behind the cutter device between the wheels and in front of the transmission between the rear wheels, The drive transmission system to the wheels and the cutter device can be simply configured. Further, by arranging the cylinder part of the engine rearward, the air cleaner and the muffler can be separately arranged on the left and right sides of the cylinder part. The system and the exhaust system can be rationally arranged.
【図１】本発明を適用した乗用芝刈機の概略構成を一部
破断して示す透視側面図FIG. 1 is a perspective side view showing a schematic configuration of a riding lawn mower to which the present invention has been applied, with a part thereof cut away.
【図２】同じく平面図FIG. 2 is a plan view of the same.
【図３】従来のエンジン後部配置例を示す概略平面図FIG. 3 is a schematic plan view showing an arrangement example of a conventional engine rear portion.
【図４】そのトランスミッション部分のベルトプーリ装
置を示す外観斜視図FIG. 4 is an external perspective view showing a belt pulley device of the transmission portion.
【図５】従来のエンジン中央配置及びベルトプーリ装置
構成例を示す概略側面図FIG. 5 is a schematic side view showing a conventional engine center arrangement and a belt pulley device configuration example.
【図６】同じく平面図FIG. 6 is a plan view of the same.
１…車体、３…前輪、４…後輪、５…ハンドル、６…座
席、７…トランスミッション、１１…エンジン、１２…
シリンダ部、１３…クランク軸、１４…エアクリ1 ... Car body, 3 ... Front wheel, 4 ... Rear wheel, 5 ... Steering wheel, 6 ... Seat, 7 ... Transmission, 11 ... Engine, 12 ...
Cylinder, 13 ... Crankshaft, 14 ... Air cleaner
Claims (1)
エンジン下に突出するクランク軸からベルトプーリ装置
を介して、車体後部で左右の後輪間に配置したトランス
ミッションと、車体下で前後輪間に配置したカッター装
置とに動力を伝達するようにした乗用芝刈機において、
シリンダ部を後方へ向けたエンジンを車体後部上に配置
して、そのクランク軸をトランスミッションの前方に配
置し、クランク軸とその後方のトランスミッションを結
ぶベルトプーリ装置を設けるとともに、クランク軸とそ
の前方のカッター装置とを結ぶベルトプーリ装置を設け
たことを特徴とする乗用芝刈機。1. A seat and an engine are arranged on a vehicle body,
Passenger power is transmitted from a crankshaft protruding below the engine via a belt pulley device to a transmission located between the left and right rear wheels at the rear of the vehicle and a cutter device located between the front and rear wheels under the vehicle. In lawnmowers,
An engine with the cylinder part facing rearward is arranged on the rear part of the vehicle body, its crankshaft is arranged in front of the transmission, and a belt pulley device that connects the crankshaft and the transmission behind it is provided, and the crankshaft and the front A riding lawn mower characterized by being provided with a belt pulley device for connecting to a cutter device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3244620A JP2980211B2 (en) | 1991-08-29 | 1991-08-29 | Riding lawn mower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3244620A JP2980211B2 (en) | 1991-08-29 | 1991-08-29 | Riding lawn mower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0556715A true JPH0556715A (en) | 1993-03-09 |
| JP2980211B2 JP2980211B2 (en) | 1999-11-22 |
Family
ID=17121456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3244620A Expired - Lifetime JP2980211B2 (en) | 1991-08-29 | 1991-08-29 | Riding lawn mower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2980211B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013042718A (en) * | 2011-08-25 | 2013-03-04 | Kubota Corp | Riding type mower |
-
1991
- 1991-08-29 JP JP3244620A patent/JP2980211B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013042718A (en) * | 2011-08-25 | 2013-03-04 | Kubota Corp | Riding type mower |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2980211B2 (en) | 1999-11-22 |
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