JP4425803B2 - Walking type work machine - Google Patents

Walking type work machine Download PDF

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JP4425803B2
JP4425803B2 JP2005003813A JP2005003813A JP4425803B2 JP 4425803 B2 JP4425803 B2 JP 4425803B2 JP 2005003813 A JP2005003813 A JP 2005003813A JP 2005003813 A JP2005003813 A JP 2005003813A JP 4425803 B2 JP4425803 B2 JP 4425803B2
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handle
operating
frame
working
switch
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JP2006191806A (en
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圭亮 飯田
裕光 早田
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Yanmar Co Ltd
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Yanmar Co Ltd
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Description

本発明は、駆動部の駆動を操作する操作手段を備えたハンドルと、そのハンドルを一端に設けたフレームと、そのフレームの他端に取り付けられた作業部とを備え、操作手段を操作して駆動部の駆動を伝達し作業を行う歩行型作業機に関する。   The present invention includes a handle provided with an operation means for operating the drive of the drive unit, a frame provided with the handle at one end, and a working unit attached to the other end of the frame, and operates the operation means. The present invention relates to a walk-type work machine that transmits a drive of a drive unit and performs work.

従来の歩行型耕耘機(歩行型作業機)は、モータの駆動を操作するクラッチレバー(操作手段)を備えたハンドルと、そのハンドルを一端に設けたフレームと、そのフレームの他端に取り付けられたロータリー耕耘爪を有する耕耘部(作業部)とを備え、クラッチレバーを操作してモータの駆動を伝達し耕耘作業を行う(例えば特許文献1)。なお、ハンドルが耕耘部の幅方向全域に設けられるとともに、クラッチレバーが耕耘部の幅方向に渡ってハンドルに設けられている。   A conventional walking type tiller (walking type working machine) is attached to a handle having a clutch lever (operation means) for operating a motor, a frame having the handle at one end, and the other end of the frame. And a tilling part (working part) having a rotary tillage claw, and operating the clutch lever to transmit the drive of the motor to perform the tilling work (for example, Patent Document 1). A handle is provided in the entire width direction of the tillage portion, and a clutch lever is provided in the handle across the width direction of the tillage portion.

特願2001−169602号公報Japanese Patent Application No. 2001-169602

しかし このような歩行型耕耘機では、クラッチレバーの一方寄りに突起を設けるとともに、ハンドルにその突起が当接するとONとなるスイッチを内蔵しているので、クラッチレバーを握る箇所によってはクラッチレバーの突起がスイッチに適切に当接せず、スイッチがONとならず、作業効率を低下させるという問題があった。
そこでこの発明の目的は、作業効率を向上させた歩行型作業機を提供することにある。
However, such a walk-type tiller has a protrusion on one side of the clutch lever and a built-in switch that turns on when the protrusion comes into contact with the handle, so depending on where the clutch lever is gripped, There was a problem that the protrusion did not properly contact the switch, the switch was not turned on, and the work efficiency was reduced.
Accordingly, an object of the present invention is to provide a walking type work machine with improved work efficiency.

このため請求項1に記載の発明は、駆動部の駆動を操作する操作手段を備えたハンドルと、該ハンドルを一端に設けたフレームと、該フレームの他端に取り付けられた作業部とを備え、前記操作手段を操作して前記駆動部の駆動を伝達し作業を行う歩行型作業機において、前記操作手段の操作部材は、コの字型の前記ハンドルの内側向きに開口部より突出するように取り付けられ、前記ハンドルが前記作業部の幅方向全域に設けられるとともに、前記操作手段が前記作業部の幅方向に渡って前記ハンドルに設けられ、前記操作手段は外側端に回動支点を備える2つの操作部材から構成され、前記2つの操作部材はそれぞれ内側端に形成された連結部を介して連結され、前記2つの操作部材の一方に突起を備えるとともに、前記ハンドル内に、前記突起が当接するとONとなるスイッチを備えることを特徴とする。 Therefore, the invention described in claim 1 includes a handle provided with an operating means for operating the drive of the drive unit, a frame provided with the handle at one end, and a working unit attached to the other end of the frame. in the walk-behind working machine that performs work by transmitting the drive of the drive unit by operating the operating unit, the operating member of the operating means projecting Ri by opening inwardly facing U-shaped said handle of The handle is provided in the entire width direction of the working portion, the operating means is provided in the handle across the width direction of the working portion, and the operating means has a rotation fulcrum at the outer end. The two operation members are connected to each other via a connecting portion formed on the inner end, and one of the two operation members is provided with a protrusion, and in the handle, Serial projection is characterized in that it comprises a switch which becomes ON when contacts.

請求項2に記載の発明は、請求項1に記載の歩行型作業機において、前記駆動部が電力にて駆動することを特徴とする。   According to a second aspect of the present invention, in the walking work machine according to the first aspect, the drive unit is driven by electric power.

請求項1に記載の発明によれば、駆動部の駆動を操作する操作手段を備えたハンドルと、そのハンドルを一端に設けたフレームと、そのフレームの他端に取り付けられた作業部とを備え、操作手段を操作して駆動部の駆動を伝達し作業を行う歩行型作業機において、操作手段の操作部材は、コの字型のハンドルの内側向きに開口部より突出するように取り付けられ、ハンドルが作業部の幅方向全域に設けられるとともに、操作手段が作業部の幅方向に渡ってハンドルに設けられ、操作手段は外側端に回動支点を備える2つの操作部材から構成され、2つの操作部材はそれぞれ内側端に形成された連結部を介して連結され、2つの操作部材の一方に突起を備えるとともに、ハンドル内に、突起が当接するとONとなるスイッチを備えるので、操作手段のどこを握って操作しても2つの操作部材が連動して動き、操作部材に設けられた突起が正確にスイッチに当接し、確実にONとすることができる。したがって、操作手段を握って操作する箇所によらず安定してON操作ができるので、作業効率を向上させた歩行型作業機を提供することができる。 According to the first aspect of the present invention, it is provided with a handle provided with an operation means for operating the drive of the drive unit, a frame provided with the handle at one end, and a working unit attached to the other end of the frame. in the walk-behind working machine to perform by operating the operation unit transmits the driving of the drive unit working, the operating member of the operating means is mounted so as to protrude Ri by opening inwardly facing U-shaped handle The handle is provided in the entire width direction of the working portion, the operating means is provided in the handle across the width direction of the working portion, and the operating means is constituted by two operating members having a rotation fulcrum at the outer end. The two operating members are connected to each other through a connecting portion formed on the inner end, and one of the two operating members is provided with a protrusion, and a switch that is turned on when the protrusion comes into contact with the handle is provided. It is operated where the gripping by means movement in conjunction two operating members can be projections provided on the operation member accurately in contact with the switch, reliably turned ON. Therefore, since the ON operation can be stably performed regardless of the position to be operated by grasping the operation means, it is possible to provide a walking work machine with improved work efficiency.

請求項2に記載の発明によれば、駆動部が電力にて駆動するので、バッテリーの交換が容易にでき、操作性のよい歩行型作業機を提供することができる。また、ガソリンエンジンやディーゼルエンジンなどに比べて排気で空気を汚すことがなく、環境に配慮した歩行型作業機を提供することができる。   According to the second aspect of the present invention, since the drive unit is driven by electric power, it is possible to easily replace the battery and to provide a walking work machine with good operability. Further, it is possible to provide an environment-friendly walking work machine that does not pollute the air with exhaust gas compared to a gasoline engine or a diesel engine.

以下、図面を参照しつつ、この発明を実施するための最良の形態について詳述する。
図1は、本発明の歩行型作業機の一例としての歩行型耕耘機を示す正面図であり、図2は側面図である。
この例の歩行型耕耘機11は、2つの金属製棒状パイプからなる上部フレーム20Aと、その上部フレーム20Aとネジ21Aおよびナット21Bを介して取り付けられた金属製パイプを略コ字状に形成した下部フレーム20Bとを備える。2つの上部フレーム20Aはハンドル12を介して連結されている。ハンドル12の中央部にはスイッチレバー(操作手段)13が設けられている。また、下部フレーム20Bの両端部には耕耘部(作業部)19を備え、下部フレーム20Bの中間部にはバッテリー、制御部などを内蔵するとともにメインスイッチを斜板22bに設けた、ケース22を不図示のボルトにより取り付ける。なお、上部フレーム20Aと下部フレーム20Bとでフレーム20を構成する。
Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.
FIG. 1 is a front view showing a walking type tiller as an example of the walking type working machine of the present invention, and FIG. 2 is a side view.
The walking type cultivator 11 of this example has an upper frame 20A composed of two metal rod-shaped pipes, and a metal pipe attached to the upper frame 20A via screws 21A and nuts 21B in a substantially U shape. And a lower frame 20B. The two upper frames 20 </ b> A are connected via the handle 12. A switch lever (operation means) 13 is provided at the center of the handle 12. Further, a plowing portion (working portion) 19 is provided at both ends of the lower frame 20B, and a battery 22 and a control portion are built in an intermediate portion of the lower frame 20B, and a main switch is provided on the swash plate 22b. Install with bolts (not shown). The upper frame 20A and the lower frame 20B constitute the frame 20.

上部フレーム20Aと下部フレーム20Bとは詳しくは次のように取り付けられている。すなわち、上部フレーム20Aの両端を幅方向に屈曲させて絞るとともに両端をつぶしてそのほぼ中央にそれぞれ貫通孔を開口する。一方、略コ字状に形成した下部フレーム20Bの2つの屈曲部より先端側にそれぞれ貫通孔を設ける。そして、上部フレーム20Aの貫通孔と下部フレーム20Bの貫通孔とを合わせて、ネジ21Aを内側より差し込む。上部フレーム20Aの外側に貫通させたネジ21Aの先端にはナット21Bをネジつける。このようにして、上部フレーム20Aと下部フレーム20Bとを取り付ける。   Specifically, the upper frame 20A and the lower frame 20B are attached as follows. That is, both ends of the upper frame 20A are bent in the width direction and squeezed, and both ends are crushed and a through hole is opened at substantially the center thereof. On the other hand, through-holes are provided on the distal end side from the two bent portions of the lower frame 20B formed in a substantially U-shape. Then, the through hole of the upper frame 20A and the through hole of the lower frame 20B are aligned, and the screw 21A is inserted from the inside. A nut 21B is screwed to the tip of a screw 21A that penetrates outside the upper frame 20A. In this way, the upper frame 20A and the lower frame 20B are attached.

耕耘部19は、ドラム状のロータ14と、そのロータ14の周面に形成された3つのステー15aにボルトなどで取り付けられた耕耘爪15とを備える。なお、図1においては周面に設けられた耕耘爪15の一部が示されている。
ロータ14の内部には、ロータ14を回転させるためのモータ(駆動部)が固設され、そのモータから駆動軸14aを延設する。2つの駆動軸14aの先端には雄ネジが形成されている。下部フレーム20Bの両端は、つぶされてそのほぼ中央にそれぞれ開口Oが形成される。この開口Oに駆動軸14aを取り付け、駆動軸14aの先端よりナット16をネジつけて、ロータ14を下部フレーム20Bに取り付ける。
The tilling unit 19 includes a drum-shaped rotor 14 and a tilling claw 15 attached to three stays 15 a formed on the peripheral surface of the rotor 14 with bolts or the like. In addition, in FIG. 1, a part of tilling nail | claw 15 provided in the surrounding surface is shown.
A motor (drive unit) for rotating the rotor 14 is fixed inside the rotor 14, and a drive shaft 14a extends from the motor. Male screws are formed at the ends of the two drive shafts 14a. Both ends of the lower frame 20B are crushed, and an opening O is formed at substantially the center thereof. The drive shaft 14a is attached to the opening O, the nut 16 is screwed from the tip of the drive shaft 14a, and the rotor 14 is attached to the lower frame 20B.

スイッチレバー13は詳しくは、図3(a),(b)に示すように構成されている。すなわち、ハンドル12には幅方向に渡って開口部12Oを形成し、そのハンドル12の内部には引掛凸部B2,B3を形成するとともにスイッチSWを備える。一方、プラスチック樹脂製の平板を略カギ状に成型した操作部材13a,13bの外側部には、操作部材13a,13bをそれぞれ引掛凸部B3,B2の周りに回動自在に取り付けるための貫通孔(回動支点)H3,H2を設ける。また、操作部材13aの内側部には引掛凸部B1を形成する。一方、操作部材13bの内側部には、この引掛凸部B1を遊嵌させる長孔H1を形成するとともに中央部には、スイッチSWに当接しうる突起13cを形成する。なお、引掛凸部B1と長孔H1とで連結部を構成する。   Specifically, the switch lever 13 is configured as shown in FIGS. That is, the opening 12O is formed in the handle 12 in the width direction, the hook 12 is formed with hooking projections B2 and B3, and the switch SW is provided. On the other hand, through holes for attaching the operation members 13a and 13b to the outer sides of the hooking projections B3 and B2, respectively, on the outer sides of the operation members 13a and 13b obtained by molding a flat plate made of plastic resin into a substantially key shape. (Rotation fulcrum) H3 and H2 are provided. Further, a hooking projection B1 is formed on the inner side of the operation member 13a. On the other hand, a long hole H1 for loosely fitting the hooking projection B1 is formed on the inner side of the operation member 13b, and a protrusion 13c that can contact the switch SW is formed on the center. The hooking convex portion B1 and the long hole H1 constitute a connecting portion.

そして、貫通孔H3を引掛凸部B3に引掛けるとともに、貫通孔H2を引掛凸部B2に引掛けて、操作部材13aと操作部材13bとをハンドル12に取り付ける。さらに、長孔H1を引掛凸部B1に引掛けて操作部材13aと操作部材13bとを連結する。なお、操作部材13a,13bはコの字型のハンドル12の内側向きに開口部12Oより突出するように取り付けられる。また、上部フレーム20Aの先端にはネジ孔を設け、ハンドル12の両端部にはそのネジ孔に対応したネジ孔を設け、両者を貫通してボルトT1,T2にてハンドル12と上部フレーム20Aとを連結する。さらに、連結された操作部材13a,13bは、ハンドル12の開口部12Oより一部が矢印方向に引っ込み自在に突出するようにそれぞれ板バネなどの弾性部材によって付勢する。そして、それらの板バネの一方を操作部材13a,13bに取り付けるとともに他方をハンドル12内部に取り付けてハンドル12内に設ける。なお、操作部材13a,13bを同一形状の部品とすれば製造コストを削減することができる。 Then, the operating hole 13a and the operating member 13b are attached to the handle 12 by hooking the through hole H3 to the hooking convex part B3 and hooking the through hole H2 to the hooking convex part B2. Furthermore, the operating hole 13a and the operating member 13b are connected by hooking the long hole H1 to the hooking projection B1. The operation member 13a, 13b is mounted so as to project Ri by opening 12 O inside facing U-shaped handle 12. Further, a screw hole is provided at the tip of the upper frame 20A, and screw holes corresponding to the screw holes are provided at both ends of the handle 12, and the handle 12 and the upper frame 20A are connected to each other by bolts T1 and T2. Are connected. Furthermore, the connected operation members 13a and 13b are each urged by an elastic member such as a leaf spring so that a part of the operation members 13a and 13b protrudes from the opening 12O of the handle 12 so as to be retractable in the arrow direction. One of the leaf springs is attached to the operation members 13 a and 13 b and the other is attached to the inside of the handle 12 and provided in the handle 12. If the operation members 13a and 13b are parts having the same shape, the manufacturing cost can be reduced.

ケース22は図4に示すように、天板22aと斜板22bとを備え、斜板22bにはメインスイッチ30、インジケータID1,ID2とを備える。なお、図4は作業者が立った状態でハンドル12越しにケース22を見たときの図である。この図ではハンドル12および上部フレーム20Aは図示を省略している。
インジケータID1は、メインスイッチ30がONとなったときに点灯し、メインスイッチ30がOFFとなったとき消灯するようになっている。
インジケータID2は、メインスイッチ30がONとなっているときにケース22内に備えられているバッテリーの残量をHIとLOの間で針でアナログ的に表示するものである。
天板22aは蝶番を介してケース22と取り付けられており、バッテリーの交換時には天板22aを開いて行う。
なお、斜板22b上にインジケータID1,ID2を設けたので、作業者に対する視認性を向上させることができる。
As shown in FIG. 4, the case 22 includes a top plate 22a and a swash plate 22b. The swash plate 22b includes a main switch 30 and indicators ID1 and ID2. FIG. 4 is a view when the case 22 is seen through the handle 12 with the worker standing. In this figure, the handle 12 and the upper frame 20A are not shown.
The indicator ID1 is turned on when the main switch 30 is turned on, and is turned off when the main switch 30 is turned off.
The indicator ID2 displays the remaining amount of the battery provided in the case 22 in an analog manner with a needle between HI and LO when the main switch 30 is ON.
The top plate 22a is attached to the case 22 via a hinge, and when the battery is replaced, the top plate 22a is opened.
In addition, since indicator ID1, ID2 was provided on the swash plate 22b, the visibility with respect to an operator can be improved.

このように構成された歩行型耕耘機11を用いて耕耘作業をする方法について図1〜4を用いて説明する。
まず、メインスイッチ30を押下して電源をONにする。これによってインジケータID1が点灯するとともに、インジケータID2の針がバッテリーの残量を正確に示す。
次に、片手または両手でスイッチレバー13を握る。すると、操作部材13aが引掛凸部B3を支点として、操作部材13bが引掛凸部B2を支点として図3(b)中の矢印方向にそれぞれ回動し、操作部材13bに設けられた突起13cがスイッチSWに当接する。スイッチSWは突起13cが当接すると不図示の回路が導通してバッテリーの電力がロータ14内のモータに供給されるように構成されている。この構成は公知の技術によるものとする。
A method for performing a tilling work using the walking type tiller 11 configured as described above will be described with reference to FIGS.
First, the main switch 30 is pressed to turn on the power. As a result, the indicator ID1 is turned on, and the indicator ID2 needle accurately indicates the remaining battery level.
Next, the switch lever 13 is grasped with one hand or both hands. Then, the operating member 13a rotates about the hooking convex portion B3 as a fulcrum and the operating member 13b rotates about the hooking convex portion B2 as a fulcrum in the direction of the arrow in FIG. 3B, and the projection 13c provided on the operating member 13b is provided. Contact the switch SW. The switch SW is configured such that when the protrusion 13c comes into contact, a circuit (not shown) is turned on to supply battery power to the motor in the rotor 14. This configuration is based on a known technique.

なお、突起13cは操作部材13bにのみ形成されているが、操作部材13aと操作部材13bとが引掛凸部B1と長孔H1によって連結されているので、操作部材13aを握っても操作部材13bも合わせて回動するようになっている。また、長孔H1は、連結された2つの操作部材13a,13bがそれぞれ異なる回動支点(引掛凸部B2,B3)にて回動することから生じる位置的なひずみを解消するために長孔状に形成されている。したがって、操作部材13a,13bはスムーズに回動することができる。   The protrusion 13c is formed only on the operation member 13b. However, since the operation member 13a and the operation member 13b are connected by the hooking projection B1 and the long hole H1, the operation member 13b is held even if the operation member 13a is gripped. It is designed to rotate together. Further, the long hole H1 is a long hole in order to eliminate positional distortion caused by the two connected operation members 13a and 13b rotating at different rotation fulcrums (hooking protrusions B2 and B3). It is formed in a shape. Therefore, the operation members 13a and 13b can rotate smoothly.

スイッチレバー13を握っている間はロータ14の外周に取り付けられた耕耘爪15が回転して耕作面を耕耘する。
耕耘作業を終了または一時停止するときは、スイッチレバー13を握っている手を緩める。すると、図3(b)において、不図示の板バネなどの弾性部材により操作部材13aが引掛凸部B3を支点として矢印と反対方向(反時計回り)に回動するとともに、操作部材13bが引掛凸部B2を支点として矢印と反対方向(時計回り)に回動する。これによって、突起13cがスイッチSWから離れ、不図示の回路の導通状態が解除されてモータへの電力の供給を停止し、ロータ14の回転が停止して耕耘作業が停止する。
そして、耕耘作業を終了するときはメインスイッチ30を押下してOFFにする。これによってインジケータID1が消灯するとともに、インジケータID2がOFFとなり、バッテリー残量の表示を停止する。
While the switch lever 13 is being gripped, the tilling claw 15 attached to the outer periphery of the rotor 14 rotates to till the cultivation surface.
When ending or temporarily suspending the tilling work, the hand holding the switch lever 13 is loosened. Then, in FIG. 3 (b), the operation member 13a is rotated in the direction opposite to the arrow (counterclockwise) with the hooking projection B3 as a fulcrum by an elastic member such as a leaf spring (not shown), and the operation member 13b is hooked. It rotates in the direction opposite to the arrow (clockwise) with the convex B2 as a fulcrum. As a result, the projection 13c is separated from the switch SW, the conduction state of a circuit (not shown) is released, the supply of electric power to the motor is stopped, the rotation of the rotor 14 is stopped, and the tilling work is stopped.
When the tilling work is finished, the main switch 30 is pressed to turn it off. As a result, the indicator ID1 is turned off and the indicator ID2 is turned off, and the display of the remaining battery level is stopped.

なお、この例の歩行型耕耘機11は図5に示すように構成してもよい。すなわち、下部フレーム20Bの左右両方に溶接などによって尾輪フレーム31をそれぞれ取り付ける。尾輪フレーム31には尾輪34を支持するためのパイプ状の支持部32をスライド自在に取り付ける。支持部32に固設された板状の取付部32aには貫通孔を設け、その貫通孔に尾輪34の尾輪軸33を内側より貫通させて尾輪軸33の先端をナットにて締め付けて、尾輪34を支持部32に回転自在に取り付ける。なお、支持部32には不図示のリンチピンが設けられており、これを用いて支持部32を尾輪フレーム31の適当な位置に固定できるようになっている。
支持部32は尾輪フレーム31上を上下にスライド可能となっており、耕耘深さに応じて適宜、尾輪34と耕作面Gとの位置関係を調整できるものとする。したがって、耕深の調整が容易であり、作業負荷を低減することができる。
例えば、耕耘深さを深くしたいときは、図6に示すように尾輪フレーム31に沿って支持部32を上方に移動させる。このようにすると、尾輪フレーム31の先端が耕作面Gより深く差し込まれ、歩行型耕耘機11の進行方向に対してより強い抵抗を付与することができる。
なお、尾輪34の位置は、ロータ14の幅と同じであれば耕耘の仕上がりをいっそう良好にすることができる。
また、尾輪34はゴム製であってもよいし、樹脂製、鉄製などであってもよい。
In addition, you may comprise the walking type tiller 11 of this example as shown in FIG. That is, the tail wheel frame 31 is attached to both the left and right sides of the lower frame 20B by welding or the like. A pipe-like support portion 32 for supporting the tail wheel 34 is slidably attached to the tail wheel frame 31. A plate-like attachment portion 32a fixed to the support portion 32 is provided with a through hole, the tail wheel shaft 33 of the tail wheel 34 is passed through the through hole from the inside, and the tip of the tail wheel shaft 33 is tightened with a nut, The tail wheel 34 is rotatably attached to the support portion 32. The support portion 32 is provided with a lynch pin (not shown) so that the support portion 32 can be fixed to an appropriate position of the tail wheel frame 31 by using this pinch pin.
The support part 32 can be slid up and down on the tail wheel frame 31, and the positional relationship between the tail wheel 34 and the cultivation surface G can be adjusted appropriately according to the tilling depth. Therefore, the adjustment of the tilling depth is easy and the work load can be reduced.
For example, when it is desired to increase the tillage depth, the support portion 32 is moved upward along the tail wheel frame 31 as shown in FIG. If it does in this way, the front-end | tip of the tail wheel frame 31 will be inserted deeper than the cultivation surface G, and stronger resistance can be provided with respect to the advancing direction of the walk type tiller 11.
In addition, if the position of the tail wheel 34 is the same as the width of the rotor 14, the finishing of the tillage can be further improved.
The tail wheel 34 may be made of rubber, resin, iron or the like.

上述の例の歩行型耕耘機11は、ネジ21Aを回動中心として折り畳むことができるように構成されている。以下にその折り畳み方法を説明する。
まず、フレーム20の中間部にある2つのネジ21Aを緩め、上部フレーム20Aをネジ21Aを回動中心として図2中で反時計回りにネジ21Aを中心として回動させて折り畳み、格納状態とする。次に、ネジ21Aを締めつめて上部フレーム20Aを下部フレーム20Bに格納状態で固定する。この状態で収納場所に搬送して保管する。
また、収納場所に保管された歩行型耕耘機11を使用するときは、歩行型耕耘機11を保管場所から所望のセット位置に搬送する。次に、両側のネジ21Aを緩めて、上部フレーム20Aを図2中で時計回りにネジ21Aを中心として回動させて伸張状態にする。そして、ネジ21Aを締め付けて上部フレーム20Aを下部フレーム20Bに伸張状態で固定する。これによりフレーム20は折り畳み不可となる。
The walking type tiller 11 of the above-described example is configured so that it can be folded around the screw 21A as a rotation center. The folding method will be described below.
First, the two screws 21A in the middle part of the frame 20 are loosened, and the upper frame 20A is rotated about the screw 21A counterclockwise in FIG. . Next, the upper frame 20A is fixed to the lower frame 20B in a retracted state by tightening the screws 21A. In this state, it is transported to a storage place and stored.
Moreover, when using the walk-type tiller 11 stored in the storage location, the walk-type tiller 11 is transported from the storage location to a desired set position. Next, the screws 21A on both sides are loosened, and the upper frame 20A is rotated clockwise around the screws 21A in FIG. Then, the upper frame 20A is fixed to the lower frame 20B in an extended state by tightening the screws 21A. As a result, the frame 20 cannot be folded.

以上、詳述したように、この発明の歩行型耕耘機11は、モータ(駆動部)の駆動を操作するスイッチレバー(操作手段)13を備えたハンドル12と、そのハンドル12を一端に設けたフレーム20と、そのフレーム20の他端に取り付けられた耕耘部(作業部)19とを備え、スイッチレバー13を操作してモータの駆動を伝達し作業を行い、操作手段13の操作部材13a,13bは、コの字型のハンドル12の内側向きに開口部12Oより突出するように取り付けられ、ハンドル12が耕耘部19の幅方向全域に設けられるとともに、スイッチレバー13が耕耘部19の幅方向に渡ってハンドル12に設けられ、スイッチレバー13はそれぞれ外側端に貫通孔(回動支点)H3,H2を備える2つの操作部材13a,13bから構成され、2つの操作部材13a,13bはそれぞれ内側端に形成された引掛凸部B1および長孔H1(合わせて連結部と称す)を介して連結され、2つの操作部材13a,13bのうち一方の操作部材13bに突起13cを備えるとともに、ハンドル12内に、突起13cが当接するとONとなるスイッチSWを備える。また、モータが電力にて駆動する。 As described above in detail, the walking cultivator 11 of the present invention is provided with the handle 12 having the switch lever (operation means) 13 for operating the drive of the motor (drive unit) and the handle 12 at one end. It comprises a frame 20 and a tilling part (working part) 19 attached to the other end of the frame 20, operates the switch lever 13 to transmit the drive of the motor and performs the work. 13b is mounted so as to protrude Ri by opening 12 O inside facing U-shaped handle 12, with the handle 12 is provided in the entire width of the tilling unit 19, the switch lever 13 of tilling unit 19 The switch lever 13 is provided with two operation members 13a and 13b each provided with a through hole (rotating fulcrum) H3 and H2 at the outer end. The two operation members 13a and 13b are connected to each other through a hooking projection B1 and a long hole H1 (also referred to as a connection portion) formed at the inner end, and one of the two operation members 13a and 13b is connected. The operating member 13b is provided with a projection 13c, and a switch SW that is turned on when the projection 13c comes into contact with the handle 12 is provided in the handle 12. The motor is driven by electric power.

なお、上述の例では、歩行型作業機の一例として農作業に用いる歩行型耕耘機について説明したが、この発明はこれに限定されるものではなく、歩行型芝刈機などに適用してもよい。   In the above-described example, the walking type tiller used for farm work has been described as an example of the walking type working machine. However, the present invention is not limited to this and may be applied to a walking lawn mower or the like.

本発明の歩行型作業機の一例としての歩行型耕耘機を示す正面図である。It is a front view which shows the walk type tiller as an example of the walk type work machine of this invention. 図1に示す歩行型耕耘機の側面図である。It is a side view of the walking type tiller shown in FIG. (a)は図1に示すハンドル付近の斜視図であり、(b)は(a)のA矢視断面図である。(A) is a perspective view of the vicinity of the handle shown in FIG. 1, and (b) is a cross-sectional view taken along arrow A in (a). 図1の歩行型耕耘機をハンドル越しに見たときの平面図である。It is a top view when the walk-type field cultivator of FIG. 1 is seen through a handle. 図1の歩行型耕耘機の別の例を示す側面図である。It is a side view which shows another example of the walking type tiller of FIG. 図5において尾輪を上方に配置した例を示す側面図である。It is a side view which shows the example which has arrange | positioned the tail wheel upward in FIG.

符号の説明Explanation of symbols

11,31 歩行型耕耘機(歩行型作業機)
12 ハンドル
12O 開口部
13 スイッチレバー(操作手段)
13a,13b 操作部材
13c 突起
14 ロータ
14a 駆動軸
15 耕耘爪
15a ステー
16 ナット
19 耕耘部(作業部)
20 フレーム
20A 上部フレーム(フレーム)
20B 下部フレーム(フレーム)
21A ネジ(回動部)
21B ナット
22 ケース
22a 天板
22b 斜板
30 メインスイッチ
31 尾輪フレーム
32 支持部
32a 取付部
33 尾輪軸
34 尾輪
B1 引掛凸部(連結部)
B2,B3 引掛凸部
G 耕作面
H1 長孔(連結部)
H2,H3 貫通孔(回動支点)
ID1,ID2 インジケータ
O 開口
SW スイッチ
T1,T2 ボルト
11,31 Walk type tiller (walking type work machine)
12 Handle 12O Opening 13 Switch lever (operating means)
13a, 13b Operation member 13c Protrusion 14 Rotor 14a Drive shaft 15 Tillage claw 15a Stay 16 Nut 19 Tillage part (working part)
20 frame 20A upper frame (frame)
20B Lower frame (frame)
21A Screw (rotating part)
21B Nut 22 Case 22a Top plate 22b Swash plate 30 Main switch 31 Tail wheel frame 32 Support part 32a Mounting part 33 Tail wheel shaft 34 Tail wheel B1 Hook convex part (connecting part)
B2, B3 Catch convex part G Cultivated surface H1 Long hole (connecting part)
H2 and H3 through holes (rotating fulcrum)
ID1, ID2 indicator O opening SW switch T1, T2 bolt

Claims (2)

駆動部の駆動を操作する操作手段を備えたハンドルと、該ハンドルを一端に設けたフレームと、該フレームの他端に取り付けられた作業部とを備え、前記操作手段を操作して前記駆動部の駆動を伝達し作業を行う歩行型作業機において、前記操作手段の操作部材は、コの字型の前記ハンドルの内側向きに開口部より突出するように取り付けられ、前記ハンドルが前記作業部の幅方向全域に設けられるとともに、前記操作手段が前記作業部の幅方向に渡って前記ハンドルに設けられ、前記操作手段は外側端に回動支点を備える2つの操作部材から構成され、前記2つの操作部材はそれぞれ内側端に形成された連結部を介して連結され、前記2つの操作部材の一方に突起を備えるとともに、前記ハンドル内に、前記突起が当接するとONとなるスイッチを備えることを特徴とする、歩行型作業機。 A handle provided with an operation means for operating the drive of the drive unit; a frame provided with the handle at one end; and a working unit attached to the other end of the frame; in the transmitting driving walk-behind working machine to perform the work, the operating member of the operating means is mounted so as to protrude Ri by opening inwardly facing U-shaped said handle of said handle said working portion The operation means is provided on the handle across the width direction of the working portion, and the operation means is composed of two operation members having a rotation fulcrum at an outer end, The two operating members are connected to each other through a connecting portion formed on the inner end, and one of the two operating members is provided with a protrusion, and is turned on when the protrusion comes into contact with the handle. Characterized in that it comprises a pitch, walk-behind working machine. 前記駆動部が電力にて駆動することを特徴とする、請求項1に記載の歩行型作業機。   The walking work machine according to claim 1, wherein the driving unit is driven by electric power.
JP2005003813A 2005-01-11 2005-01-11 Walking type work machine Expired - Fee Related JP4425803B2 (en)

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JP4425803B2 true JP4425803B2 (en) 2010-03-03

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Publication number Priority date Publication date Assignee Title
JP5111066B2 (en) * 2007-11-13 2012-12-26 ヤンマー株式会社 Walking type management machine

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