JP2018102238A - Riding lawn mower - Google Patents

Riding lawn mower Download PDF

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JP2018102238A
JP2018102238A JP2016253368A JP2016253368A JP2018102238A JP 2018102238 A JP2018102238 A JP 2018102238A JP 2016253368 A JP2016253368 A JP 2016253368A JP 2016253368 A JP2016253368 A JP 2016253368A JP 2018102238 A JP2018102238 A JP 2018102238A
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collector
partition member
safety frame
driver
lawn mower
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JP6919195B2 (en
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大尊 戸田
Hirotaka Toda
大尊 戸田
裕佑 馬場
Yusuke Baba
裕佑 馬場
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Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
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Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a riding lawn mower including a partition member further safely partitioning a collector and a driver seat.SOLUTION: A riding lawn mower is configured such that: a safe frame 18 protecting a driver on a driver seat 11 when a traveling vehicle body 2 turns over is provided between the driver seat 11 on the traveling vehicle body 2 and a cut grass collector 14 provided therebehind; and a partition member 45 partitioning the collector 14 and the driver seat 11 is provided between the collector 14 and the driver seat 11 independently from the safety frame 18. When the safety frame 18 is deformed due to overturn of a vehicle, there is no fear that the partition member 45 is also deformed because the partition member 45 is provided independently from the safety frame 18. The height of the partition member 45 is the same or lower than a height during folding forward or backward the safety frame 18, and the width thereof is narrower than the width of the safety frame 18 so as to facilitate a work under a tree and driving in a narrow place such as parking in a barn.SELECTED DRAWING: Figure 1

Description

本発明は、乗用型芝刈機に関する。   The present invention relates to a riding lawn mower.

車両前部に運転席、車両後部に刈草を収容するコレクタを備え、コレクタを上下に昇降する昇降リンクを有する乗用型芝刈機において、コレクタと運転席との間に安全フレームを備え、コレクタを昇降するときに運転者がコレクタと接触しないよう、仕切り部材を安全フレームに設けた構成が知られている(特許文献1)。   A riding lawn mower with a driver's seat at the front of the vehicle and a collector that accommodates mowing grass at the rear of the vehicle, and a lifting link that raises and lowers the collector up and down, a safety frame between the collector and the driver's seat, A configuration in which a partition member is provided on a safety frame is known so that the driver does not come into contact with the collector when performing the operation (Patent Document 1).

実開平4−88223号公報Japanese Utility Model Publication No. 4-88223

しかし、特許文献1に記載の構成では、仕切り部材が安全フレームの枠内に、フレームの内側に沿って設置されているため、車両の転倒や障害物との接触等により安全フレームが変形してしまうと、その変形が安全フレームに装着された仕切り部材に伝達し、仕切り部材までも変形するおそれがある。   However, in the configuration described in Patent Document 1, since the partition member is installed in the frame of the safety frame along the inner side of the frame, the safety frame is deformed due to the vehicle falling or contacting with an obstacle. As a result, the deformation is transmitted to the partition member mounted on the safety frame, and the partition member may be deformed.

そこで、本発明の課題は、より安全にコレクタと運転席を仕切る仕切り部材を備えた乗用型芝刈機を提供することである。   Then, the subject of this invention is providing the riding-type lawn mower provided with the partition member which partitions off a collector and a driver's seat more safely.

本発明の上記課題は、次の解決手段により解決される。
すなわち、請求項1に記載の発明は、走行装置(3,4)を備えた走行車体(2)と、該走行車体(2)上に配置された運転席(11)と、走行車体(2)の前部に配置された草刈部(6)と、前記走行車体(2)の後部であって、運転席(11)の後方に配置され、前記草刈部(6)で刈られた草が内部に収容される収容部(14)と、該収容部(14)と運転席(11)との間に配置され、走行車体(2)の転倒時に運転席(11)の運転者を保護する安全フレーム(18)と、収容部(14)と運転席(11)との間に配置され、収容部(14)と運転席(11)とを仕切り、前記安全フレーム(18)とは独立して立設する仕切り部材(45)とを備えたことを特徴とする乗用型芝刈機である。
The above-described problems of the present invention are solved by the following solution means.
That is, the invention described in claim 1 includes a traveling vehicle body (2) provided with a traveling device (3, 4), a driver seat (11) disposed on the traveling vehicle body (2), and a traveling vehicle body (2 ) And a grass cutting part (6) arranged at the front of the vehicle body (2) and a rear part of the traveling vehicle body (2) behind the driver seat (11), and the grass cut by the grass cutting part (6) The housing part (14) housed in the interior, and disposed between the housing part (14) and the driver seat (11), protects the driver of the driver seat (11) when the traveling vehicle body (2) falls. The safety frame (18) is disposed between the housing portion (14) and the driver seat (11), partitions the housing portion (14) and the driver seat (11), and is independent of the safety frame (18). A riding lawn mower characterized by comprising a partition member (45) standing upright.

請求項2に記載の発明は、前記安全フレーム(18)は、その上部(18a)が下部(18b)に対して前方又は後方に折り曲げ可能な屈曲部(18c)を有し、前記仕切り部材(45)は、その高さが、前記安全フレーム(18)の屈曲部(18c)の高さと同じかそれよりも低く、その横幅が、前記安全フレーム(18)の横幅よりも狭い構成であることを特徴とする請求項1に記載の乗用型芝刈機である。   According to a second aspect of the present invention, the safety frame (18) has a bent portion (18c) whose upper portion (18a) can be bent forward or backward with respect to the lower portion (18b), and the partition member ( 45) is configured such that the height thereof is the same as or lower than the height of the bent portion (18c) of the safety frame (18), and the lateral width thereof is narrower than the lateral width of the safety frame (18). The riding lawn mower according to claim 1.

請求項3に記載の発明は、前記収容部(14)内の草を掻き出す掻き出し棒(47)を収納する収納部(52)を、前記仕切り部材(45)の側方に設けたことを特徴とする請求項1又は請求項2に記載の乗用型芝刈機である。   The invention according to claim 3 is characterized in that a storage portion (52) for storing a scraping bar (47) for scraping grass in the storage portion (14) is provided on a side of the partition member (45). The riding lawn mower according to claim 1 or 2.

請求項1記載の発明によれば、車両の転倒や障害物との接触等により安全フレーム(18)が変形しても、仕切り部材(45)が安全フレーム(18)とは独立して立設していることから、仕切り部材(45)まで変形するおそれはない。従って、仕切り部材(45)前方の運転席(11)に仕切り部材(45)が干渉することはなく、安全である。   According to the first aspect of the present invention, even if the safety frame (18) is deformed due to the vehicle falling or contacting with an obstacle, the partition member (45) is erected independently of the safety frame (18). Therefore, there is no possibility that the partition member (45) is deformed. Therefore, the partition member (45) does not interfere with the driver's seat (11) in front of the partition member (45), which is safe.

請求項2記載の発明によれば、請求項1記載の発明の効果に加えて、安全フレーム(18)の折り曲げ時よりも仕切り部材(45)を小さく構成することで、安全フレーム(18)の折り曲げ時に邪魔にならず、木の下での作業や納屋への駐車など狭い場所での運転が容易になる。   According to the second aspect of the present invention, in addition to the effect of the first aspect of the invention, the partition member (45) is configured to be smaller than when the safety frame (18) is bent, so that the safety frame (18) It does not get in the way when it is bent, and it can be easily operated in small places such as working under a tree or parking in a barn.

請求項3記載の発明によれば、請求項1又は請求項2に記載の発明の効果に加えて、掻き出し棒(47)を刈草の収容部(14)や運転席(11)の近くに装備でき、掻き出し棒(47)を収納部(52)から取り出すことで、収容部(14)の搬入口や搬入通路等に詰まった草を容易に除去できる。   According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the scraper bar (47) is provided near the mowing grass accommodating portion (14) or the driver's seat (11). In addition, by removing the scraping bar (47) from the storage section (52), grass clogged in the carry-in entrance or the carry-in passage of the storage section (14) can be easily removed.

本実施例の乗用型芝刈機の側面図である。It is a side view of the riding-type lawn mower of a present Example. 本実施例の乗用型芝刈機の動力伝動構成の平面図である。It is a top view of the power transmission structure of the riding-type lawn mower of a present Example. 本実施例の乗用型芝刈機において、コレクタが上昇した状態の側面図である。In the riding lawn mower of the present embodiment, it is a side view of a state where the collector is raised. 本実施例の乗用型芝刈機において、コレクタが回動した状態の側面図である。In the riding lawn mower of the present embodiment, it is a side view of a state where the collector is rotated. 本実施例の乗用型芝刈機の安全フレーム部分の背面図である。It is a rear view of the safety frame part of the riding-type lawn mower of the present embodiment. 本実施例の乗用型芝刈機のモーアの平面図である。It is a top view of the mower of the riding-type lawn mower of a present Example. 本実施例の乗用型芝刈機の刈刃の側面図である。It is a side view of the cutting blade of the riding lawn mower of the present embodiment. 本実施例の乗用型芝刈機の刈刃(第一刈刃)の図である。It is a figure of the cutting blade (1st cutting blade) of the riding-type lawn mower of a present Example. 本実施例の乗用型芝刈機の刈刃(第二刈刃)の図である。It is a figure of the cutting blade (2nd cutting blade) of the riding type lawn mower of a present Example.

以下、図面に基づき、本発明の好ましい実施の形態について説明する。
本実施例の乗用型芝刈機1の側面図を図1に示し、乗用型芝刈機1の動力伝動構成の平面図を図2に示す。この乗用型芝刈機1は、車体フレーム2の前部と後部にそれぞれ前輪3,3と後輪4,4を備え、車体フレーム2の前部の下方には芝草刈り取り用の刈刃5を備えたモーア6が設けられている。モーア6により本実施例の草刈部が構成されている。
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
A side view of the riding lawn mower 1 of this embodiment is shown in FIG. 1, and a plan view of the power transmission configuration of the riding lawn mower 1 is shown in FIG. The riding lawn mower 1 includes front wheels 3 and 3 and rear wheels 4 and 4 at a front portion and a rear portion of a vehicle body frame 2, respectively, and a cutting blade 5 for cutting turf grass below the front portion of the vehicle body frame 2. A mower 6 is provided. The mower 6 constitutes the mowing unit of this embodiment.

車体フレーム2の前部上方のフロア7にはステアリングコラム8が立設され、該コラム8の上部にはハンドル10が設けられている。またハンドル10の後方にはシートベルト13を装備した運転席11があり、該運転席11の後方にはボンネット34内にエンジン12を搭載している。エンジン12の前方には、エンジン12の冷却装置の一例としてのラジエータ17が配置されている。エンジン12の上方には、収容部の一例としてのコレクタ14が配置されている。   A steering column 8 is erected on a floor 7 above the front portion of the vehicle body frame 2, and a handle 10 is provided on the top of the column 8. A driver's seat 11 equipped with a seat belt 13 is provided behind the handle 10, and an engine 12 is mounted in a hood 34 behind the driver's seat 11. A radiator 17 as an example of a cooling device for the engine 12 is disposed in front of the engine 12. Above the engine 12, a collector 14 as an example of a storage unit is disposed.

尚、本明細書において乗用型芝刈機1の前進方向を向いて左右方向をそれぞれ左、右といい、前進方向を前、後進方向を後ろということにする。   In this specification, the riding lawn mower 1 faces the forward direction, the left and right directions are respectively referred to as left and right, the forward direction is referred to as front, and the reverse direction is referred to as rear.

エンジン12の出力は、前方の変速装置ケース15内の変速装置(図示せず)に入力される。そして、エンジン12の回転動力は、変速装置で変速されて、該変速された走行動力が前輪3,3及び後輪4,4へ伝達される。   The output of the engine 12 is input to a transmission (not shown) in the front transmission case 15. Then, the rotational power of the engine 12 is shifted by the transmission, and the shifted traveling power is transmitted to the front wheels 3 and 3 and the rear wheels 4 and 4.

さらに、変速装置ケース15の前方上側に伝達軸16(図2)が延びており、前記伝達軸16からの動力により、刈草の搬送部材の一例としてのブロア23が駆動される。ブロア23はブロアケース24に収容されており、該ブロアケース24の上部にはブロアケース24とコレクタ14の搬入口14bを連通する芝草搬送用のダクト26が設けられている。また、ブロア23とモーア6の間にはシュータ27が配置されていて、モーア6により刈り取られた芝草はシュータ27とダクト26を経由してブロア23により後方のコレクタ14に搬送される。尚、コレクタ14には、図示しない通気口が形成されており、コレクタ14内に送られてくる空気を外部に排出することができる。   Further, a transmission shaft 16 (FIG. 2) extends on the upper front side of the transmission case 15, and a blower 23, which is an example of a mowing grass conveying member, is driven by the power from the transmission shaft 16. The blower 23 is accommodated in a blower case 24, and a turfgrass transport duct 26 that communicates the blower case 24 and the carry-in port 14 b of the collector 14 is provided on the blower case 24. A shooter 27 is disposed between the blower 23 and the mower 6, and the turf grass cut by the mower 6 is conveyed to the rear collector 14 by the blower 23 via the shooter 27 and the duct 26. The collector 14 has a vent hole (not shown) so that air sent into the collector 14 can be discharged to the outside.

また、運転席11とコレクタ14との間には、正面視で開口部を下方に有するコの字型(U字型も含む)の安全フレーム18が立設されている。安全フレーム18は、転倒の際や周囲の障害物等から運転者を保護するものである。安全フレーム18は、左右の各下端部を支持する支持部材43を介して車体フレーム2の左右側部に連結している。支持部材43のフランジ部43a(図5)がボルト、ナット、ピン、ねじなどの留め具(固定具)44により車体フレーム2に取り付けられている。   Further, between the driver's seat 11 and the collector 14, a U-shaped safety frame 18 (including a U-shape) having an opening portion on the lower side in a front view is erected. The safety frame 18 protects the driver from falling or surrounding obstacles. The safety frame 18 is connected to the left and right side portions of the vehicle body frame 2 via support members 43 that support the left and right lower end portions. The flange portion 43a (FIG. 5) of the support member 43 is attached to the vehicle body frame 2 by a fastener (fixing tool) 44 such as a bolt, a nut, a pin, or a screw.

コレクタ14の昇降用台座20は、コレクタ14の下方でコレクタ14の底部に沿って前後方向に伸びる左右一対の水平部20a,20aと、左右一対の水平部20a,20aの後端から上方に伸びる左右一対の鉛直部20b,20bとを有する。尚、左右一対の水平部20a,20aは、後端に左右方向に延びる図示しない連結バーにより連結されている。   The raising / lowering pedestal 20 of the collector 14 extends downward from the rear end of the pair of left and right horizontal portions 20a, 20a and the pair of left and right horizontal portions 20a, 20a extending in the front-rear direction along the bottom of the collector 14 below the collector 14. It has a pair of left and right vertical parts 20b, 20b. The pair of left and right horizontal portions 20a, 20a are connected to the rear end by a connecting bar (not shown) extending in the left-right direction.

そして、前記鉛直部20bには、前記コレクタ14を昇降させるためのコレクタ昇降リンク19a,19bの後端が回転可能に支持されており、コレクタ昇降リンク19a,19bの前端は、コレクタ14を下方から支持する支持フレーム25の前端に固着した取付片(ブラケットなど)21に回転可能に連結されている。また、下側のコレクタ昇降リンク19bの中間部と、鉛直部20bの下端との間には、伸縮可能な昇降シリンダ28が連結されている。   The vertical portions 20b rotatably support the rear ends of collector elevating links 19a and 19b for elevating the collector 14, and the front ends of the collector elevating links 19a and 19b hold the collector 14 from below. It is rotatably connected to a mounting piece (such as a bracket) 21 fixed to the front end of the supporting frame 25 to be supported. A retractable lift cylinder 28 is connected between the middle part of the lower collector lift link 19b and the lower end of the vertical part 20b.

前記支持フレーム25の後部には、支持フレーム25の後端の支点軸33(図3)を中心として、コレクタ14の底部後端に取り付けた回転アーム14cが回転可能に支持されている。支持フレーム25とコレクタ14の底部との間には、伸縮可能なダンプシリンダ29が連結されている。   A rotating arm 14c attached to the bottom rear end of the collector 14 is rotatably supported at the rear portion of the support frame 25 around a fulcrum shaft 33 (FIG. 3) at the rear end of the support frame 25. A telescopic dump cylinder 29 is connected between the support frame 25 and the bottom of the collector 14.

図3には、本実施例の乗用型芝刈機1において、コレクタ14が上昇した状態の側面図を示す。
図1、図3において、本実施例のコレクタ昇降機構19では、昇降シリンダ28が作動してロッド28aが伸びると、コレクタ昇降リンク19a,19bが鉛直部20bとの連結部を支点として回転して上昇し、支持フレーム25が上昇する。この時、コレクタ昇降リンク19a,19bの平行リンク構造により、支持フレーム25及びコレクタ14は水平状態を維持したまま上昇して、図3に示す上昇位置(リフト位置)に移動する。即ち、コレクタ14の内部に収容された刈草を外部に排出することが可能な排出位置に移動する。
FIG. 3 shows a side view of the riding lawn mower 1 of the present embodiment with the collector 14 raised.
1 and 3, in the collector elevating mechanism 19 of this embodiment, when the elevating cylinder 28 is actuated and the rod 28a is extended, the collector elevating links 19a and 19b rotate around the connecting portion with the vertical portion 20b. The support frame 25 rises. At this time, due to the parallel link structure of the collector elevating links 19a and 19b, the support frame 25 and the collector 14 are raised while maintaining a horizontal state and moved to the raised position (lift position) shown in FIG. That is, the mowing grass accommodated in the collector 14 moves to a discharge position where it can be discharged to the outside.

尚、昇降シリンダ28のロッド28aが収納されると、コレクタ14は下降して、図1に示す通常位置(収容位置)に戻る。   When the rod 28a of the elevating cylinder 28 is accommodated, the collector 14 descends and returns to the normal position (accommodating position) shown in FIG.

図4には、本実施例の乗用型芝刈機1において、コレクタ14が回動した状態の側面図を示す。
図3、図4において、ダンプシリンダ29が作動してロッド29aが伸びると、支持フレーム25に対して、回転アーム14cが支点軸33を中心に回転する。これに伴って、回転アーム14cに固着するコレクタ14も回動する。従って、コレクタ14の内部に収容された刈草を外部に排出することが可能な排出位置(ダンプ位置)に移動する。この時、コレクタ14の回転に伴ってコレクタ後部の蓋14aが開き、刈草が排出される。そして、ダンプシリンダ29のロッド29aが収納されると、蓋14aは閉じてコレクタ14は、図3に示す状態に戻る。
FIG. 4 shows a side view of the riding lawn mower 1 of this embodiment in a state where the collector 14 is rotated.
3 and 4, when the dump cylinder 29 operates and the rod 29 a extends, the rotating arm 14 c rotates about the fulcrum shaft 33 with respect to the support frame 25. Along with this, the collector 14 fixed to the rotating arm 14c also rotates. Therefore, the mowing grass accommodated in the collector 14 moves to a discharge position (dump position) where it can be discharged to the outside. At this time, with the rotation of the collector 14, the lid 14a at the rear of the collector is opened, and the cut grass is discharged. When the rod 29a of the dump cylinder 29 is housed, the lid 14a is closed and the collector 14 returns to the state shown in FIG.

尚、比較的地面近くの低い位置で刈草を排出する場合は、図1の通常位置の状態でダンプシリンダ29を作動させる。この場合は、図1の2点鎖線に示すように、コレクタ14が回動して蓋14aが開き、刈草を排出できる。一方、トラック等への荷台に刈った草を落とし込む場合は刈草の放出位置を高くする必要があるため、図3に示す上昇位置で刈草を排出させる。   In addition, when discharging grass at a relatively low position near the ground, the dump cylinder 29 is operated in the state of the normal position in FIG. In this case, as shown by a two-dot chain line in FIG. 1, the collector 14 rotates to open the lid 14a, and the cut grass can be discharged. On the other hand, when the cut grass is dropped on the loading platform for a truck or the like, it is necessary to raise the release position of the cut grass, so that the cut grass is discharged at the raised position shown in FIG.

エンジン12の回転動力は、変速装置ケース15から、その内部のPTOクラッチ30を経て、前方に伸びるモーア駆動軸31や、モーア駆動軸31の前端から左右方向に伸びるモーア伝達軸32を介して、刈刃5,5の伝動ケース9内の回転軸59(図6)に駆動が伝達される。本実施例では、左右の刈刃5,5は、互いに、矢印r方向に逆向きに回転する。   The rotational power of the engine 12 is transmitted from the transmission case 15 via the inner PTO clutch 30 via the mower drive shaft 31 extending forward and the mower transmission shaft 32 extending in the left-right direction from the front end of the mower drive shaft 31. Drive is transmitted to the rotating shaft 59 (FIG. 6) in the transmission case 9 of the cutting blades 5 and 5. In the present embodiment, the left and right cutting blades 5 and 5 rotate in the directions opposite to each other in the direction of the arrow r.

これにより、モーアデッキ38内に入り込んだ芝草は前記左右の刈刃5,5によって刈り取られ、左右方向の中央で合流して、シュータ27及びダクト26を順次通過して車体フレーム2の後方にあるコレクタ14に回収される。
また、モーアデッキ38の上部には、前方に延びる補助輪アーム41の基端部が支持されており、補助輪アーム41の前端には、補助輪42が回転可能に支持されている。
As a result, the turf grass that has entered the mower deck 38 is cut by the left and right cutting blades 5, 5, merges at the center in the left-right direction, passes through the shooter 27 and the duct 26 in sequence, and is placed in the collector behind the vehicle body frame 2. 14 recovered.
A base end portion of an auxiliary wheel arm 41 extending forward is supported on the upper part of the mower deck 38, and an auxiliary wheel 42 is rotatably supported on the front end of the auxiliary wheel arm 41.

図5には、安全フレーム18部分の背面図を示す。
モーア6により刈り取られた芝草はシュータ27とダクト26を経由してコレクタ14に搬送されるが、コレクタ14の搬入口14bとダクト26との間には、刈草が溜まったり詰まったりしやすいため、運転者である作業者がこれら詰まった草を取り除く必要が生じる。
FIG. 5 shows a rear view of the safety frame 18 portion.
Turf grass mowed by the mower 6 is conveyed to the collector 14 via the shooter 27 and the duct 26. However, the mowed grass tends to accumulate or clog between the inlet 14b of the collector 14 and the duct 26. The operator, who is the driver, needs to remove these clogged grasses.

コレクタ14は、刈草の排出時にコレクタ昇降リンク19a,19bにより昇降するが、昇降時における草取り作業の安全性を確保するために、運転者がコレクタ14と接触しないよう、安全フレーム18とコレクタ14との間に、仕切り部材45を設けている。尚、運転席11と安全フレーム18との間に、仕切り部材45を設けても良い。   The collector 14 is moved up and down by the collector lifting links 19a and 19b when the mowed grass is discharged. However, in order to ensure the safety of the weeding work during the lifting, the safety frame 18 and the collector 14 are arranged so that the driver does not contact the collector 14. A partition member 45 is provided between them. A partition member 45 may be provided between the driver's seat 11 and the safety frame 18.

本実施例の乗用型芝刈機1では、安全フレーム18とコレクタ14との間に、安全フレーム18とは独立して、コレクタ14と運転席11とを仕切る仕切り部材45を設けたことを特徴としている。仕切り部材45は、安全フレーム18に取り付けられるのではなく、安全フレーム18とは独立して車体フレーム2から立設しているため、車両の転倒や障害物との接触等により安全フレーム18が変形しても、その影響を受けることはなく、仕切り部材45まで変形するおそれはない。従って、仕切り部材45の前方の運転席11に仕切り部材45が干渉することはなく、安全である。   The riding lawn mower 1 according to the present embodiment is characterized in that a partition member 45 that partitions the collector 14 and the driver's seat 11 is provided between the safety frame 18 and the collector 14 independently of the safety frame 18. Yes. Since the partition member 45 is not attached to the safety frame 18 but is erected from the vehicle body frame 2 independently of the safety frame 18, the safety frame 18 is deformed due to a fall of the vehicle, contact with an obstacle, or the like. Even if it does not receive that influence, there is no possibility that the partition member 45 will be deformed. Therefore, the partition member 45 does not interfere with the driver's seat 11 in front of the partition member 45 and is safe.

これら安全フレーム18や仕切り部材45は、車体フレーム2にボルトやナットなどの留め具44により、容易に取り付けることができる。また、仕切り部材45は安全フレーム18の支持部材43に連結具(ブラケットなど)46により取り付けることで、部品の点数を削減できる。尚、この場合、仕切り部材45と安全フレーム18は支持部材43及び連結具46を介して一体となるが、後方の仕切り部材45と前方の安全フレーム18は立設位置が異なり、それぞれ独立して支持部材43から立設している。   The safety frame 18 and the partition member 45 can be easily attached to the vehicle body frame 2 with fasteners 44 such as bolts and nuts. In addition, the partition member 45 can be attached to the support member 43 of the safety frame 18 by a connecting tool (such as a bracket) 46 to reduce the number of parts. In this case, the partition member 45 and the safety frame 18 are integrated with each other via the support member 43 and the connector 46. However, the rear partition member 45 and the front safety frame 18 are different in standing position, and are independent of each other. Standing up from the support member 43.

車両が転倒した場合は車両の側方から衝撃を受けるため、仕切り部材45と安全フレーム18の立設位置が前後で重複しないことで、左右方向外側の安全フレーム18が変形しても、仕切り部材45に伝達されることはない。
また、仕切り部材45は外枠のフレーム45a内に金網45bを張った構成にすることで、後方の視認性に優れ、安全に作業することができる。
When the vehicle falls, the vehicle receives an impact from the side of the vehicle, so that the standing positions of the partition member 45 and the safety frame 18 do not overlap in the front and rear, so that the partition member even if the safety frame 18 on the outer side in the lateral direction is deformed 45 is not transmitted.
In addition, the partition member 45 has a structure in which a wire mesh 45b is stretched in a frame 45a of the outer frame, so that the rear visibility is excellent and the work can be performed safely.

そして、安全フレーム18は、その上部18aが下部18bに対して前方又は後方に折り曲げ可能な屈曲部18cを有する構成である。安全フレーム18の上部18aは下部18bにステーやブラケット等の支持具50を介してボルト、ナット、ピン、ねじなどの留め具44により取り付けることで屈曲部18cを構成し、容易に取り付けや取り外しが可能である。図示例では、倒す側と反対側の支持具50の留め具44を外すことで、前方にも後方にも折り畳み可能な構成である。   And the safety frame 18 is the structure which has the bending part 18c which the upper part 18a can be bent forward or backward with respect to the lower part 18b. The upper portion 18a of the safety frame 18 is attached to the lower portion 18b with a fastener 44 such as a bolt, nut, pin, or screw via a support 50 such as a stay or a bracket, thereby forming a bent portion 18c. Is possible. In the example of illustration, it is the structure which can be folded also forward and back by removing the fastener 44 of the support tool 50 on the opposite side to the side to fall.

安全フレーム18を立設姿勢から、その上部18aを屈曲部18cで前方又は後方に倒すことで、安全フレーム18の高さが低くなるため、樹木等の中を草刈するときに安全フレーム18が樹木に当接することを防止できる。そして、非作業時には安全フレーム18を折り曲げることで、コンパクトな構成となる。   The height of the safety frame 18 is lowered by tilting the upper portion 18a forward or backward at the bent portion 18c from the standing posture, so that the safety frame 18 can be used when mowing trees or the like. Can be prevented from coming into contact. When the safety frame 18 is bent during non-working, a compact configuration is obtained.

そして、仕切り部材45は、正面視や背面視で安全フレーム18内に収まる大きさとすることで、転倒時に仕切り部材45が影響を受けることはなく、安全フレーム18によって運転者の居住領域が守られるため、安全である。
また、仕切り部材45は、その高さが、安全フレーム18の屈曲部18cの高さと同じかそれよりも低く、その横幅が、安全フレーム18の横幅よりも狭い構成とすると、安全フレーム18の折り曲げ時に仕切り部材45が邪魔にならず、木の下での作業や納屋への駐車など狭い場所での運転が容易になる。
And the partition member 45 is made into the magnitude | size which fits in the safety frame 18 by a front view and a back view, and the partition member 45 is not influenced at the time of a fall, and a driver | operator's living area is protected by the safety frame 18. Because it is safe.
Further, when the partition member 45 has a height that is the same as or lower than the height of the bent portion 18 c of the safety frame 18, and the width of the partition member 45 is narrower than the width of the safety frame 18, the safety frame 18 is bent. Sometimes the partition member 45 does not get in the way, and operation in a narrow place such as work under a tree or parking in a barn becomes easy.

そして、コレクタ14内の草を掻き出す掻き出し棒47を収納する収納部52を、仕切り部材45の側方に設けている。本構成を採用することにより、掻き出し棒47をコレクタ14や運転席11の近くの着脱容易な位置に設置でき、コレクタ14の搬入口14bとダクト26との間などに詰まった草を容易に除去できる。   A storage portion 52 that stores a scraping bar 47 that scrapes grass in the collector 14 is provided on the side of the partition member 45. By adopting this configuration, the scraping bar 47 can be installed at a position where it can be easily attached and detached near the collector 14 and the driver's seat 11, and grass clogged between the carry-in port 14b of the collector 14 and the duct 26 can be easily removed. it can.

収納部52は、ステーやフックなどの引っ掛け部材により構成され、掻き出し棒47の先端の鍵状部47aを引っ掛けることで、仕切り部材45に装着できる。また、正面視や背面視(図5)で安全フレーム18の左右内側に掻き出し棒47を設置することで、草取り作業中に掻き出し棒47が周辺の草や木の枝等にも引っ掛かりにくく、作業性も良い。   The storage portion 52 is configured by a hook member such as a stay or a hook, and can be attached to the partition member 45 by hooking the key-like portion 47 a at the tip of the scraping bar 47. In addition, by installing the scraping bar 47 on the left and right inner sides of the safety frame 18 in front view and rear view (FIG. 5), the scraping bar 47 is not easily caught on the surrounding grass or tree branches during the weeding operation. Good nature.

図6には、本実施例の乗用型芝刈機のモーアの平面図を示し、図7には刈刃5の側面図を示す。また、図8には上側の第一刈刃5aの図を示し、図9には下側の第二刈刃5bの図を示す。尚、図8及び図9において、各図の(A)は平面図を示し、各図の(B)は側面図を示し、各図の(C)は各図の(A)のS方向から見た場合の図を示している。   FIG. 6 shows a plan view of the mower of the riding lawn mower of the present embodiment, and FIG. 7 shows a side view of the cutting blade 5. 8 shows a diagram of the upper first cutting blade 5a, and FIG. 9 shows a diagram of the lower second cutting blade 5b. 8 and 9, (A) in each drawing shows a plan view, (B) in each drawing shows a side view, and (C) in each drawing shows from the S direction of (A) in each drawing. The figure when it sees is shown.

本実施例の乗用型芝刈機のモーア6は、左右の刈刃5,5が片側4枚で、合計8枚の刈刃5からなる構成である。草は、カットした後に直ぐにコレクタ14に搬送、収容させるため、刈刃5が片側2枚の場合は、草を細かくカットできないままコレクタ14に収容されてしまう。   The mower 6 of the riding lawn mower according to the present embodiment has a configuration in which the left and right cutting blades 5 and 5 are four on one side, and a total of eight cutting blades 5 are formed. Since the grass is transported and stored in the collector 14 immediately after being cut, if the cutting blades 5 are two on one side, the grass is stored in the collector 14 without being cut finely.

しかし、片側4枚にすることで、回転軸59の回転数が片側2枚の場合と同じ回転数であっても、草をより細かくカットすることができる。   However, by using four on one side, the grass can be cut more finely even if the number of rotations of the rotating shaft 59 is the same as that on the two on one side.

そして、左右の刈刃5,5は、それぞれ上側の第一刈刃5aと下側の第二刈刃5bを2枚ずつ備えており、これらの刈刃5a,5bを円形型の取付ステー60にボルト62などの留め具により取り付けている。刈刃5の高さが全て同じであると、回転軸59の回転数が2倍になったのと同じ効果しかない。しかし、刈刃5に高低差H(図7)を設けることで、下側の第二刈刃5bで草をカットした後、上側に舞い上がった草を上側の第一刈刃5aで更に細かくカットできるため、草をより細かくカットすることができる。   Each of the left and right cutting blades 5 and 5 includes two upper cutting blades 5a and two lower cutting blades 5b. The cutting blades 5a and 5b are each provided with a circular mounting stay 60. It is attached with a fastener such as a bolt 62. If the heights of the cutting blades 5 are all the same, there is only the same effect as when the rotational speed of the rotary shaft 59 is doubled. However, by providing the cutting blade 5 with a height difference H (FIG. 7), after the grass is cut with the lower second cutting blade 5b, the grass that has risen upward is further cut with the upper first cutting blade 5a. Because it can, you can cut the grass more finely.

また、上側の第一刈刃5aと下側の第二刈刃5bとが平面視で重ならないように、第一刈刃5aと第二刈刃5bの取付ステー60への取り付け位置を周方向にずらして設けるとよい。
上側の第一刈刃5aと下側の第二刈刃5bとが平面視で重なるような配置であると、上下の刈刃5a,5b間に草が詰まって束になり、地面に落下する可能性がある。
Further, the mounting positions of the first cutting blade 5a and the second cutting blade 5b on the mounting stay 60 are set in the circumferential direction so that the upper first cutting blade 5a and the lower second cutting blade 5b do not overlap in plan view. It is good to provide it with a gap.
When the upper first cutting blade 5a and the lower second cutting blade 5b are arranged so as to overlap each other in plan view, grass is clogged between the upper and lower cutting blades 5a, 5b and bundles and falls to the ground. there is a possibility.

しかし、図6に示すように、上下の刈刃5a,5bの取付ステー60への取り付け位置を周方向にずらすことで、上下の刈刃5a,5b間に草が詰まることがなくなり、きれいな刈り跡になる。また、下側の第二刈刃5bで草をカットした後、上側に舞い上がった草を第一刈刃5aで効率よくカットすることができる。   However, as shown in FIG. 6, by shifting the mounting position of the upper and lower cutting blades 5a and 5b to the mounting stay 60 in the circumferential direction, the grass is not clogged between the upper and lower cutting blades 5a and 5b, so that clean cutting is achieved. It becomes a trace. Further, after the grass is cut with the lower second cutting blade 5b, the grass that has risen upward can be efficiently cut with the first cutting blade 5a.

そして、図8及び図9に示すように、上下の刈刃5a,5bを異なる形状としても良い。下側の第二刈刃5bは、刈り取り高さの基準とし、図9(B)に示すように、上下に段をつけることで、草をカットする作用とカットした草をシュータ27に飛ばす作用がある。   And as shown in FIG.8 and FIG.9, it is good also considering the upper and lower cutting blades 5a and 5b as a different shape. The lower second cutting blade 5b is used as a reference for the cutting height, and, as shown in FIG. 9B, has an action of cutting grass and an action of flying the cut grass to the shooter 27 by stepping up and down. There is.

上側の第一刈刃5aはフラットな形状にすることでカット専用の作用がある。このように上下の刈刃5a,5bの作用を使い分けることで、上下の刈刃5a,5bが異なる役割を持ち、草を細かくカットして、スムーズにコレクタ14に搬送、収容させることができる。   The upper first cutting blade 5a has a flat shape and has a cutting-dedicated action. By properly using the actions of the upper and lower cutting blades 5a and 5b in this way, the upper and lower cutting blades 5a and 5b have different roles, and the grass can be cut finely and smoothly conveyed and accommodated in the collector 14.

一方、上下の刈刃5a,5bを交換し、下側を図8に示すフラットな形状の第一刈刃5aとし、上側を図9に示す段付きの形状の第二刈刃5bとしても良い。この場合は、下側の第一刈刃5aは上下方向長さが短いため、カットした草を上方に飛ばす作用が小さくなり、上下の刈刃5b,5a間の刈草はその場に残る。そして、上側の第二刈刃5bよりも上にある刈草だけをコレクタ14に収容することになる。   On the other hand, the upper and lower cutting blades 5a and 5b may be replaced, and the lower side may be the flat first cutting blade 5a shown in FIG. 8, and the upper side may be the stepped second cutting blade 5b shown in FIG. . In this case, since the lower first cutting blade 5a has a short vertical length, the action of flying the cut grass upward is reduced, and the grass between the upper and lower cutting blades 5b and 5a remains in place. Then, only the grass that is above the upper second cutting blade 5 b is accommodated in the collector 14.

この場合は、刈草を一度に大量に搬送しないことで、コレクタ14が直ぐには満杯とならず、作業距離が長い場合は、作業を継続できる。従って、作業者や、作業又は草の種類、草の成長状態等によって上下の刈刃5a,5bを使い分ければ良い。   In this case, by not transporting a large amount of mowing grass at a time, the collector 14 does not become full immediately, and the work can be continued when the work distance is long. Therefore, the upper and lower cutting blades 5a and 5b may be properly used depending on the worker, the type of work or grass, the grass growth state, or the like.

また、この乗用型芝刈機1は、図1に示すように、モーアデッキ38の上部に吸気口となるスリット70を設けている。草取り作業時に刈草が溜まってモーアデッキ38の周囲に隙間がなくなっても、スリット70から空気を取り入れることで、刈草が搬送されやすくなる。従って、集草の作業性が良くなる。また、スリット70は、図2に示すように、前方と側方に複数箇所設けることで、より多くの空気を取り入れることができる。   In addition, as shown in FIG. 1, the riding lawn mower 1 is provided with a slit 70 serving as an air inlet at the upper part of the mower deck 38. Even if mowing grass accumulates during the weeding operation and there is no gap around the moor deck 38, the air is taken in from the slit 70, so that the mowing grass is easily conveyed. Therefore, the workability of grass collection is improved. Moreover, as shown in FIG. 2, the slit 70 can take in more air by providing multiple places in the front and the side.

更に、芝草の搬送経路であるダクト26とシュータ27との間にブロア23を設けることで、刈草が強制的に吸い込まれ、刈草の排草が促進されて、作業性が良好となる。   Furthermore, by providing the blower 23 between the duct 26 and the shooter 27, which is a turfgrass transport path, the mowing grass is forcibly sucked, the mowing of the mowing grass is promoted, and the workability is improved.

コレクタを備えた乗用型芝刈機に利用可能性がある。   It can be used for riding lawn mowers with collectors.

1 乗用型芝刈機 2 車体フレーム
3 前輪 4 後輪
5 刈刃 5a 第一刈刃
5b 第二刈刃
6 モーア(草刈部) 7 フロア
8 ステアリングコラム 9 伝動ケース
10 ハンドル 11 運転席
12 エンジン 13 シートベルト
14 コレクタ(収容部) 15 変速装置ケース
16 伝達軸 17 ラジエータ
18 安全フレーム 19 コレクタ昇降機構
19a,19b コレクタ昇降リンク
20 昇降用台座 21 取付片
23 ブロア 24 ブロアケース
25 支持フレーム 26 ダクト
27 シュータ 28 昇降シリンダ
28a ロッド 29 ダンプシリンダ
29a ロッド 30 PTOクラッチ
31 モーア駆動軸 32 モーア伝達軸
33 支点軸 34 ボンネット
38 モーアデッキ 41 補助輪アーム
42 補助輪 43 支持部材
44 留め具 45 仕切り部材
46 連結具 47 掻き出し棒
50 支持具 52 収納部
59 回転軸 60 取付ステー
62 ボルト 70 スリット
DESCRIPTION OF SYMBOLS 1 Riding lawn mower 2 Body frame 3 Front wheel 4 Rear wheel 5 Cutting blade 5a 1st cutting blade 5b 2nd cutting blade 6 Mower (mowing part) 7 Floor 8 Steering column 9 Transmission case 10 Handle 11 Driver's seat 12 Engine 13 Seat belt DESCRIPTION OF SYMBOLS 14 Collector (accommodating part) 15 Transmission case 16 Transmission shaft 17 Radiator 18 Safety frame 19 Collector raising / lowering mechanism 19a, 19b Collector raising / lowering link 20 Lifting base 21 Mounting piece 23 Blower 24 Blower case 25 Support frame 26 Duct 27 Shuter 28 Lifting cylinder 28a rod 29 dump cylinder 29a rod 30 PTO clutch 31 mower drive shaft 32 mower transmission shaft 33 fulcrum shaft 34 bonnet 38 mower deck 41 auxiliary wheel arm 42 auxiliary wheel 43 support member 44 fastener 45 partition member 46 connector 47 Scraping bar 50 Supporting tool 52 Storage part 59 Rotating shaft 60 Mounting stay 62 Bolt 70 Slit

Claims (3)

走行装置(3,4)を備えた走行車体(2)と、
該走行車体(2)上に配置された運転席(11)と、
走行車体(2)の前部に配置された草刈部(6)と、
前記走行車体(2)の後部であって、運転席(11)の後方に配置され、前記草刈部(6)で刈られた草が内部に収容される収容部(14)と、
該収容部(14)と運転席(11)との間に配置され、走行車体(2)の転倒時に運転席(11)の運転者を保護する安全フレーム(18)と、
収容部(14)と運転席(11)との間に配置され、収容部(14)と運転席(11)とを仕切り、前記安全フレーム(18)とは独立して立設する仕切り部材(45)と
を備えたことを特徴とする乗用型芝刈機。
A traveling vehicle body (2) provided with a traveling device (3, 4);
A driver's seat (11) disposed on the traveling vehicle body (2);
A mowing unit (6) disposed at the front of the traveling vehicle body (2);
A rear portion of the traveling vehicle body (2), disposed behind the driver's seat (11), and a housing portion (14) in which grass cut by the mowing portion (6) is housed;
A safety frame (18) disposed between the housing (14) and the driver's seat (11) and protecting the driver of the driver's seat (11) when the traveling vehicle body (2) falls;
A partition member (between the housing part (14) and the driver's seat (11)) that partitions the housing part (14) and the driver's seat (11) and stands up independently of the safety frame (18). 45). A riding lawn mower characterized by comprising:
前記安全フレーム(18)は、その上部(18a)が下部(18b)に対して前方又は後方に折り曲げ可能な屈曲部(18c)を有し、
前記仕切り部材(45)は、その高さが、前記安全フレーム(18)の屈曲部(18c)の高さと同じかそれよりも低く、その横幅が、前記安全フレーム(18)の横幅よりも狭い構成であることを特徴とする請求項1に記載の乗用型芝刈機。
The safety frame (18) has a bent part (18c) whose upper part (18a) can be bent forward or backward with respect to the lower part (18b),
The partition member (45) has a height equal to or lower than a height of the bent portion (18c) of the safety frame (18), and a lateral width thereof is narrower than a lateral width of the safety frame (18). The riding lawn mower according to claim 1, wherein the riding lawn mower is configured.
前記収容部(14)内の草を掻き出す掻き出し棒(47)を収納する収納部(52)を、前記仕切り部材(45)の側方に設けたことを特徴とする請求項1又は請求項2に記載の乗用型芝刈機。   The storage part (52) for storing a scraping bar (47) for scraping grass in the storage part (14) is provided on a side of the partition member (45). The riding lawn mower described in 1.
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JP2021019554A (en) * 2019-07-30 2021-02-18 三菱マヒンドラ農機株式会社 Working vehicle

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JP2020156387A (en) * 2019-03-26 2020-10-01 井関農機株式会社 Sulky lawn mower
JP7192607B2 (en) 2019-03-26 2022-12-20 井関農機株式会社 riding lawn mower
JP2021019554A (en) * 2019-07-30 2021-02-18 三菱マヒンドラ農機株式会社 Working vehicle
JP7249905B2 (en) 2019-07-30 2023-03-31 三菱マヒンドラ農機株式会社 work vehicle

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