JP2729000B2 - Control structure of lawn mowing vehicle - Google Patents

Control structure of lawn mowing vehicle

Info

Publication number
JP2729000B2
JP2729000B2 JP3333777A JP33377791A JP2729000B2 JP 2729000 B2 JP2729000 B2 JP 2729000B2 JP 3333777 A JP3333777 A JP 3333777A JP 33377791 A JP33377791 A JP 33377791A JP 2729000 B2 JP2729000 B2 JP 2729000B2
Authority
JP
Japan
Prior art keywords
handle
post
steering
handle post
shaft
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 - Fee Related
Application number
JP3333777A
Other languages
Japanese (ja)
Other versions
JPH05170109A (en
Inventor
賢二 松田
修身 藤原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP3333777A priority Critical patent/JP2729000B2/en
Publication of JPH05170109A publication Critical patent/JPH05170109A/en
Application granted granted Critical
Publication of JP2729000B2 publication Critical patent/JP2729000B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Harvester Elements (AREA)
  • Steering Controls (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、芝刈機における操縦部
構造に係り、詳しくは、ハンドルポストを操縦ハンドル
部分が作業機本体側の部分に対して腰折れ揺動できるよ
うにさせ、機体高さを低める技術に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control section structure of a lawn mower, and more particularly, to a handle post which allows a control handle portion to be bent and swung with respect to a portion of a work machine main body, and a body height. Technology for lowering

【0002】[0002]

【従来の技術】芝刈機は、ステアリングハンドル部が、
あるいはこれと運転座席との双方がボンネットに対して
上方へ突出した形態を呈するものが多い。
2. Description of the Related Art A lawn mower has a steering handle,
Alternatively, in many cases, both the driver seat and the driver seat exhibit a form projecting upward with respect to the hood.

【0003】[0003]

【発明が解決しようとする課題】芝刈機をコンテナ等の
移送手段で運搬する場合、積み込み台数を多くするため
に複数機を上下に積み重ねるようにするのが一般的であ
る。ところが、前述したように芝刈機ではハンドル部や
運転座席が上方へ突出しており、そのため積み重ね段数
が制限され、比較的嵩低い作業車であるにも拘らず運搬
コストが割高なものになっていた。そこで、ハンドル部
や座席を機体から外して運搬時の嵩を低くして積み重ね
段数を増すことが経済的であるが、座席については単に
ボルト等の取付手段を外せば良いのに対し、操向輪を操
向操作するための連係部分等を伴うステアリングハンド
ル部は着脱できるように構成するのが困難であって、辛
うじてハンドル単品のみがハンドル軸から外せるに止ま
り、依然としてハンドル軸が上方に突出していることに
なって積み重ね段数増加の妨げになっていた。本発明は
上記実情に鑑み、操縦ハンドル部の高さを操作容易によ
り低められるようにすることを目的とする。
When a lawn mower is transported by a transporting means such as a container, it is common to stack a plurality of mowers one on top of the other in order to increase the number of loaded lawn mowers. However, as described above, in the lawnmower, the handle portion and the driver's seat protrude upward, so that the number of stacking stages is limited, and the transportation cost is relatively high despite the relatively low volume of the work vehicle. . Therefore, it is economical to remove the handle and the seat from the fuselage to reduce the bulk during transportation and increase the number of stacking stages, but for the seat, it is sufficient to simply remove the mounting means such as bolts. It is difficult to make the steering handle part with a linkage part for steering operation of the wheels detachable, so that only the handle itself can be barely removed from the handle shaft, and the handle shaft still projects upward. This hindered the increase in the number of stacking stages. The present invention has been made in view of the above circumstances, and an object of the present invention is to make it possible to easily lower the height of a steering handle portion.

【0004】[0004]

【課題を解決するための手段】上記目的を達成するため
に講じた本発明の技術手段は、走行機体の前部にフロン
トモーアを着脱自在に取付可能な装着部を備え、走行機
体の前端部にハンドルポストを立設した芝刈作業車の操
縦部構造において、操縦ハンドルを支持するハンドルポ
ストを機体後方側へ傾倒可能な腰折れ構造に構成すると
ともに、そのハンドルポストに支持される操縦ハンドル
のハンドル軸を、ハンドルポストの下部近くに設けた自
在継手を介してハンドルポストと一体的に機体後方側へ
傾倒可能な腰折れ構造に構成し、前記ハンドルポストが
腰折れ変位した状態では前記操縦ハンドルを着脱可能に
装備するハンドル軸がボンネットの高さよりも低くなる
ように、かつ、ハンドル軸の前記自在継手前後における
軸芯の交差角が最大折込姿勢で鈍角となるように、前記
ハンドルポストの腰折れ変位量を設定してあることであ
る。前記ハンドルポストの腰折れ構造部分は、前記ハン
ドル軸のチルト構造部分よりも下側に設けるとよい。
In order to achieve the above object, the technical means of the present invention is provided with a mounting portion to which a front mower can be detachably attached at a front portion of a traveling body, and a front end portion of the traveling body. The handle post supporting the control handle is configured as a waist-folding structure that can be tilted rearward of the fuselage, and the handle shaft of the control handle supported by the handle post is provided. The handle post is configured integrally with the handle post via a universal joint provided near the lower portion of the handle post so as to be capable of tilting to the rear side of the fuselage, and the steering handle is detachable when the handle post is displaced. The handle shaft to be mounted is lower than the height of the bonnet, and the intersection angle of the shaft cores before and after the universal joint of the handle shaft is the minimum. As an obtuse angle with the folding position is to have set a buckling displacement of the handle post. It is preferable that the waist-folding structure portion of the handle post is provided below the tilt structure portion of the handle shaft.

【0005】[0005]

【作用】すなわち、ハンドルポストを腰折れ構造にすれ
ば、ステアリングの連係機構類には多少の調節操作程度
が必要になることはあっても、それらの分解や再組付と
いった大袈裟な作業を行うことなく上方に突出した操縦
ハンドル部の高さを低めることが可能になる。そして、
その低めた場合にハンンドル軸がボンネット高さよりも
低くなるようにしておけば、ハンドル単品を外すだけの
簡単な操作を行うことによって、前述した積載段数が操
縦ハンドル部分の当たりによって制限されることがない
ようにでき、従来よりも積載段数を多くすることが可能
になる。しかも、走行機体の前部にフロントモーアの装
着部を備えるがために、機体前部が対地的に高くなりが
ちな芝刈作業車において、その高くなりがちな機体前部
に立設されたハンドルポストを、その下部近くに設定さ
れた腰折れ箇所で全体的に機体後方側へ折り込み、折込
姿勢での上方への突出度合を、機体前部側から極力少な
くすることができる。また、ハンドル軸の前記自在継手
前後における軸芯の交差角が最大折込姿勢で鈍角となる
ように、前記ハンドルポストの腰折れ変位量を設定して
あるから、最大折込姿勢でもハンドル軸をまわせば、ス
テアリング操作が可能である。したがって、ハンドルポ
ストを後傾姿勢として、上下高さの低い運搬車輌の下段
の所望箇所に誘導する場合、あるいは、天井の低い小屋
などの上下高さの低い空間の所望の箇所へステアリング
しながら機体を誘導して格納することが可能となる。さ
らにまた、請求項2に記載のように、前記ハンドルポス
トの腰折れ構造部分を、ハンドル軸のチルト構造部分よ
りも下側に設けると、ハンドルのチルト操作はハンドル
軸の比較的高い位置で好適に行え、ハンドル軸及びハン
ドルポストの後傾は、チルト操作時の揺動軸芯とは関わ
りのない下部側から全体的に後傾させることができる。
[Function] In other words, if the handle post has a waist-folded structure, it may be necessary to adjust the steering linkage mechanism to some extent, but it is necessary to perform exaggerated work such as disassembly and reassembly. It is possible to reduce the height of the steering handle portion protruding upward. And
If the handle shaft is set lower than the bonnet height when it is lowered, by simply performing the simple operation of removing the handle alone, the number of loading stages described above may be limited by the hit of the steering handle. And the number of stacking stages can be increased as compared with the conventional case. In addition, since the front mower is equipped with a front mower mounting part at the front of the traveling body, the handle post stands upright on the front of the body where lawn mowers tend to be taller. At the waist-folding point set near the lower part of the body, and the degree of upward projection in the folded posture can be reduced as much as possible from the front part of the body. Further, since the handle post is set to have a waist bending displacement amount such that the intersection angle of the axis of the handle shaft before and after the universal joint is an obtuse angle in the maximum bending posture, the handle shaft can be rotated even in the maximum bending posture. , Steering operation is possible. Therefore, when steering the handle post to the desired position in the lower part of the transport vehicle having a low vertical height with the handle post in the rearward tilt position, or while steering to a desired position in a space with a low vertical height such as a hut with a low ceiling, Can be guided and stored. Furthermore, as described in claim 2, when the waist-folded structure portion of the handle post is provided below the tilt structure portion of the handle shaft, the tilt operation of the handle is preferably performed at a relatively high position of the handle shaft. The tilting of the handle shaft and the handle post can be entirely tilted backward from the lower side, which is not related to the pivot axis during the tilt operation.

【0006】[0006]

【発明の効果】その結果、機体の構成部分の中で最も上
方に突出するステアリングハンドル部分の高さを、比較
的操作間単にして低めることができ、運搬時の積み重ね
段数の増大が図れて運搬コストの低減が期待できる操縦
部の構造を、ステアリングハンドル部としての機能を損
なうことがなく、信頼性を維持し得る状態で提供するこ
とができた。そして、フロントモーアの装着部を備える
がために、機体前部が対地的に高くなりがちな芝刈作業
車を、その高くなりがちな機体前部に立設されたハンド
ルポストを全体的に後傾させることで、全体的に上方へ
の突出を抑制し、より一層のコンパクト化を図り得る。
また、最大折込姿勢でもハンドル軸をまわせばステアリ
ング操作が可能であるようにして、上下高さの低い運搬
車輌の下段の所望箇所に誘導する場合、あるいは、天井
の低い小屋などの上下高さの低い空間の所望の箇所へス
テアリングしながら機体を誘導して格納する操作を行い
易い利点がある。
As a result, the height of the steering handle portion, which protrudes most upward among the components of the body, can be reduced relatively easily during operation, and the number of stacking stages during transport can be increased. The structure of the control unit, which can be expected to reduce the transportation cost, could be provided without impairing the function as the steering handle and maintaining the reliability. In order to provide a front mower mounting part, the lawn mowing vehicle whose front part tends to be higher than the ground, and the handle post that is erected on the front part of the body that tends to be higher, are tilted backward as a whole. By doing so, it is possible to suppress the upward projection as a whole, and to further reduce the size.
In addition, the steering operation can be performed by turning the handle shaft even in the maximum folding position, so that the vehicle can be guided to a desired location in the lower section of the transport vehicle with a low vertical height, or the vertical height of a hut with a low ceiling etc. There is an advantage that it is easy to perform an operation of guiding and storing the body while steering to a desired place in a low space.

【0007】[0007]

【実施例】以下に、本発明の実施例を図面に基づいて説
明する。図1,図2にフロントモア式の乗用型芝刈機に
おけるステアリングポスト構造が示されている。1はス
テアリングのギヤボックス2を介して機体に固定される
受台、3は下回動軸、4は中回動軸、5はステアリング
ハンドル、6はハンドル5が固定された上回動軸(ハン
ドル軸に相当)7を回動自在に支持するチルト台、8は
チルト台6を横軸心P回りで前後揺動可能に枢着する支
持体であり、中回動軸4と上回動軸7とを連動連結する
上側の自在継手11の折れ曲がり点を横軸心Pに一致さ
せてある。ハンドル5はチルト機構Cによって前後チル
ト可能であるが、その詳細構造については公知技術につ
きこれ以上の説明は省略する。
Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a steering post structure in a front mower type riding lawn mower. 1 is a pedestal fixed to the body via a steering gear box 2, 3 is a lower rotation axis, 4 is a middle rotation axis, 5 is a steering handle, and 6 is an upper rotation axis to which the handle 5 is fixed ( A tilt base 8 rotatably supports 7; a support 8 pivotally supports the tilt base 6 so as to be able to swing back and forth around a horizontal axis P. The bending point of the upper universal joint 11 for interlocking connection with the shaft 7 coincides with the horizontal axis P. Although the handle 5 can be tilted back and forth by a tilt mechanism C, its detailed structure is a known technique and will not be described further.

【0008】受台1は、水平な板状の基板1bに左右一
対の縦板1a,1aを立設固着して構成されている。支
持体8は、屈曲機構Aによって左右向きの支点X周りに
後方下方に腰折れ変位可能に受台1に支持されている。
すなわち、前記支点Xは下側の自在継手12の折れ曲が
り点に一致させてあり、受台1の縦板1aに、円弧状の
長孔14,15を形成して屈曲機構Aが構成されてい
る。つまり、2個の取付けボルト16,16を、支持体
8に固定されるフロントカバー17の操作用孔18,1
8を通してナット止めさせるのである。このように、前
記ハンドルポストHが腰折れ変位した状態では前記操縦
ハンドル5を着脱可能に装備するハンドル軸(下回動軸
3、中回動4、及び、上回動軸7)がボンネット19の
高さよりも低くなるように、かつ、ハンドル軸7の前記
自在継手12前後における軸芯の交差角が最大折込姿勢
で鈍角となるように、前記ハンドルポストHの腰折れ変
位量を設定してある。従って、2個の取付けボルト1
6,16の締め付け及び弛緩操作により、ハンドルポス
トHを、図1に示す起立させた操縦姿勢(下回動軸3の
軸芯の延長線に対する中回動軸4の軸芯の交差角が約3
0度(この場合、下回動軸3の軸芯と中回動軸4の軸芯
との交差角は約150度になる)の傾き)と、後方に倒
し込んだ図2に示す積載姿勢(下回動軸3の軸芯の延長
線に対する中回動軸4の軸芯の交差角が約75度(この
場合、下回動軸3の軸芯と中回動軸4の軸芯との交差角
は約105度になる)の傾きを持つ最大折込姿勢)との
各姿勢に係止維持自在である。図3に参考として芝刈機
の実際のコンテナへの段積み状態を示してある。取付け
ナット(図示せず)を外してハンドル5を上回動軸7上
端に形成されたネジ部(図示せず)から取り外した状態
で、ハンドルポストHを積載姿勢に倒し込むとともに、
前後の車輪、運転座席等が取り去られた状態で積み重ね
られ、上下の機体どうしが接当しそうなまでに接近させ
てスペースの有効利用を図ってある。このとき、上回動
軸7の上端はボンネット19よりも低くなっている。
尚、図4は完成状態の芝刈機である。
The receiving table 1 is constructed by vertically mounting a pair of left and right vertical plates 1a on a horizontal plate-like substrate 1b. The support 8 is supported by the cradle 1 by a bending mechanism A so that the support 8 can be bent backward and downward around the fulcrum X in the left-right direction.
That is, the fulcrum X coincides with the bending point of the lower universal joint 12, and the bending mechanism A is configured by forming arc-shaped long holes 14 and 15 in the vertical plate 1a of the receiving base 1. . That is, the two mounting bolts 16, 16 are connected to the operation holes 18, 1 of the front cover 17 fixed to the support 8.
The nut is fixed through 8. In this manner, when the handle post H is displaced from the hip, the handle shaft (the lower rotation shaft 3, the middle rotation shaft 4, and the upper rotation shaft 7) on which the steering handle 5 is detachably mounted is attached to the bonnet 19. The waist bending displacement of the handle post H is set so as to be lower than the height and so that the crossing angle of the axis of the handle shaft 7 before and after the universal joint 12 becomes an obtuse angle in the maximum bending posture. Therefore, two mounting bolts 1
By the tightening and loosening operations of Steps 6 and 16, the handle post H is turned upright as shown in FIG. 1 (the intersection angle of the axis of the middle rotation shaft 4 with respect to the extension of the axis of the lower rotation shaft 3 is approximately 3
The inclination is 0 degree (in this case, the intersection angle between the axis of the lower rotation shaft 3 and the axis of the middle rotation shaft 4 is about 150 degrees), and the loading posture shown in FIG. (The crossing angle of the axis of the middle rotation shaft 4 with respect to the extension of the axis of the lower rotation shaft 3 is about 75 degrees (in this case, the axis of the lower rotation shaft 3 and the center of the (The intersection angle becomes about 105 degrees) and the maximum folding posture having an inclination of about 105 degrees). FIG. 3 shows an actual state of stacking of lawn mowers in containers. With the mounting nut (not shown) removed and the handle 5 removed from the threaded portion (not shown) formed at the upper end of the upper rotating shaft 7, the handle post H is lowered into the loading position,
The front and rear wheels, the driver's seat, and the like are removed and stacked, and the upper and lower aircraft are brought close to each other so that they can come into contact with each other, so as to effectively use the space. At this time, the upper end of the upper rotation shaft 7 is lower than the bonnet 19.
FIG. 4 shows a lawn mower in a completed state.

【0009】〔別実施例〕 図5に示すように、円弧状の長孔14、及び取付けボル
ト16が一組である屈曲機構Aでも良い。但し、この場
合では、ハンドルポストHを確実に操縦姿勢に維持でき
るように、操縦姿勢でのみ受台1と支持体8とを位置決
めボルト9で固定させるようにしてある。10はフロン
トカバー17の位置決めボルト9用の孔である。また、
ハンドルポストHを図3に示す状態よりもさらに倒し込
めるようにして、装着状態でのハンドル5がボンンネッ
ト19よりも低くなるようにすれば、運搬時でのハンド
ル5の着脱操作が不要になり、より好都合である。
[Another Embodiment] As shown in FIG. 5, a bending mechanism A in which an arc-shaped long hole 14 and a mounting bolt 16 are a set may be used. However, in this case, the pedestal 1 and the support 8 are fixed by the positioning bolts 9 only in the steering posture so that the handle post H can be maintained in the steering posture reliably. Reference numeral 10 denotes a hole for the positioning bolt 9 of the front cover 17. Also,
If the handle post H can be further tilted down from the state shown in FIG. 3 so that the handle 5 in the mounted state is lower than the bonnet 19, the operation of attaching and detaching the handle 5 during transportation becomes unnecessary. It is more convenient.

【0010】尚、特許請求の範囲の項に図面との対照を
便利にする為に符号を記すが、該記入により本発明は添
付図面の構成に限定されるものではない。
[0010] In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

【図面の簡単な説明】[Brief description of the drawings]

【図1】屈曲機構の構造を示す側面図FIG. 1 is a side view showing the structure of a bending mechanism.

【図2】積載姿勢でのハンドルポストを示す側面図FIG. 2 is a side view showing the handle post in a loading position.

【図3】コンテナへの段積み状態を示す側面図FIG. 3 is a side view showing a state in which containers are stacked.

【図4】芝刈機の側面図FIG. 4 is a side view of the lawn mower.

【図5】屈曲機構の別構造を示す側面図FIG. 5 is a side view showing another structure of the bending mechanism.

【符号の説明】[Explanation of symbols]

5 操縦ハンドル 7 ハンドル軸 19 ボンネット H ハンドルポスト 5 Control handle 7 Handle axis 19 Bonnet H Handle post

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 走行機体の前部にフロントモーアを着脱
自在に取付可能な装着部を備え、走行機体の前端部にハ
ンドルポスト(H)を立設した芝刈作業車の操縦部構造
であって、 操縦ハンドル(5)を支持するハンドルポスト(H)を
機体後方側へ傾倒可能な腰折れ構造に構成するととも
に、そのハンドルポスト(H)に支持される操縦ハンド
ル(5)のハンドル軸(7)を、ハンドルポスト(H)
の下部近くに設けた自在継手(12)を介してハンドル
ポスト(H)と一体的に機体後方側へ傾倒可能な腰折れ
構造に構成し、 前記ハンドルポスト(H)が腰折れ変位した状態では前
記操縦ハンドル(5)を着脱可能に装備するハンドル軸
(7)がボンネット(19)の高さよりも低くなるよう
に、かつ、ハンドル軸(7)の前記自在継手(12)前
後における軸芯の交差角が最大折込姿勢で鈍角となるよ
うに、 前記ハンドルポスト(H)の腰折れ変位量を設定
してある芝刈作業車の操縦部構造。
1. A front mower is attached to and detached from the front of the traveling body.
Equipped with a mounting part that can be freely attached,
Control structure of lawn mower with standing post (H)
And a handle post (H) for supporting the steering handle (5).
With a waist-folding structure that can tilt to the rear of the aircraft
And the steering hand supported by the handle post (H)
(5) handle post (H)
Handle via a universal joint (12) provided near the lower part of the
Hip break that can be tilted to the rear of the aircraft integrally with the post (H)
When the handle post (H) is displaced from the hip , the handle post (H)
Handle axis with detachable steering handle (5)
(7) so that it is lower than the height of the hood (19)
And before the universal joint (12) of the handle shaft (7)
The crossing angle of the axis at the rear will be an obtuse angle in the maximum folding posture
As described above, the operating portion structure of the lawn mowing vehicle in which the amount of displacement of the handle post (H) is set.
【請求項2】 前記ハンドルポスト(H)の腰折れ構造
部分は、前記ハンドル軸(7)のチルト構造部分よりも
下側に設けられている請求項1記載の芝刈作業車の操縦
部構造。
2. The operating part structure for a lawn mowing vehicle according to claim 1, wherein the lumbar structure portion of the handle post (H) is provided below the tilt structure portion of the handle shaft (7).
JP3333777A 1991-12-18 1991-12-18 Control structure of lawn mowing vehicle Expired - Fee Related JP2729000B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3333777A JP2729000B2 (en) 1991-12-18 1991-12-18 Control structure of lawn mowing vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3333777A JP2729000B2 (en) 1991-12-18 1991-12-18 Control structure of lawn mowing vehicle

Publications (2)

Publication Number Publication Date
JPH05170109A JPH05170109A (en) 1993-07-09
JP2729000B2 true JP2729000B2 (en) 1998-03-18

Family

ID=18269844

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3333777A Expired - Fee Related JP2729000B2 (en) 1991-12-18 1991-12-18 Control structure of lawn mowing vehicle

Country Status (1)

Country Link
JP (1) JP2729000B2 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6030876U (en) * 1983-08-09 1985-03-02 セイレイ工業株式会社 Handle structure
JPS6148885U (en) * 1984-09-04 1986-04-02
JPH0535032Y2 (en) * 1985-03-15 1993-09-06

Also Published As

Publication number Publication date
JPH05170109A (en) 1993-07-09

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