JPH04144605A - Turf-laying machine - Google Patents

Abstract

PURPOSE:To place cut turf sheets in the form of staggered lattice by providing a detector for detecting the distance between a sheet and a row of laid turf sheets and a means for changing the distance between cut turf sheets in the moving direction and controlling the detector, the changing means and a supplying apparatus in interlocked state so as not to coincide the space of the laid cut turf sheets to the space of the laying cut turf sheets in lateral direction. CONSTITUTION:The width of a longitudinal joint 39 between the laid turf sheet row W and a supplying turf sheet row W nearest to the laid turf row is detected by a longitudinal joint sensor 44. The detection is carried out by positioning a contact piece 43a to the side of the laid turf and a contact piece 43b to the side of supplying turf row and laterally displacing a supplying apparatus A with a cylinder 45 so as not to escape the contact pieces from each row. The lateral joints 38 of the laid turf row W and the supplying turf row W are detected by a sensor 40 of a relative position detection means E and a setter 41 is set to keep the lateral joint 38 of each row in the middle of each cut turf sheet 9 in longitudinal direction. A time lag is calculated by a controller G so as to form a prescribed lateral joint and, at the same time, the supply timing of cut turf sheet 9 is corrected when the deviation of lateral joint is detected.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、切り芝を地上に連続供給する装置を走行機体
に備えた芝張り機に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a lawn mowing machine having a running machine body equipped with a device for continuously supplying cut grass to the ground.

〔従来の技術〕[Conventional technology]

この種の芝張り機としては、従来ては、特公昭５１−２
１８９３号公報で示されたもののように、走行機体の移
動速度を考慮して設定した供給間隔を隔てて、順次、シ
ュートの芝受入れくたに供給することにより、切り芝か
芝張り対象箇所に機体進行方向に適当間隔を隔てて並び
、連間に目地を形成することか可能に構成されたものか
知られている。Conventionally, this type of lawn machine was
As shown in Publication No. 1893, by sequentially supplying the grass to the grass receiving area of the chute at intervals set in consideration of the moving speed of the traveling machine, the grass can be applied to the area to be cut or covered with grass. It is known that they are arranged in a line at appropriate intervals in the direction of movement of the aircraft and are configured to form joints between them.

〔発明か解決しようとする課題〕[Invention or problem to be solved]

一般に、切り芝を地面に敷設する場合、縦及び横の両方
向共に芝成育用としての目地を設けるようにする。Generally, when cutting grass is laid on the ground, joints for growing the grass are provided both vertically and horizontally.

つま、切り芝が地面に一体化して定着する期間中は切断
面から周囲に向けても芝が成育するため、地面への敷設
時には目地を設け、後に良好な連間を形成できるように
するである。During the period when the cut grass is integrated into the ground and settled, the grass will also grow from the cut surface towards the surrounding area, so it is recommended to provide joints when laying it on the ground so that it can form a good continuous line later. be.

そして、−様な連間になるまでの間は切り芝と目地とが
結合して芝地外観を呈する都合上、隣合う横方向の目地
か揃わない状態、いわゆる千鳥格子状に切り芝を並べて
美しい外観を構成する。Until the --like rows are formed, the cut grass and the joints combine to give the appearance of a lawn, so the adjacent horizontal joints are not aligned, so the cut grass is cut in a so-called houndstooth pattern. Arrange them side by side to create a beautiful appearance.

前記従来技術では進行方向に沿う目地を、供給切り連列
か既設切り連列から所定間隔離れるように機体を走行さ
せることによって形成するのであり、走行開始時に予め
供給切り連列と既設切り連列との横方向目地が揃わない
ように合わせて作業を開始するのであるが、走行地面の
凹凸や軟硬の僅かな差等によって切り連列の相対位置が
ずれ易く、部分的に、外観上好ましくないとされる横方
向目地か重なったいわゆる基盤の目状に敷設されてしま
うことがあり、改善の余地が残されていた。In the prior art, a joint along the traveling direction is formed by running the machine at a predetermined distance from the supply cut series or the existing cut series, and at the start of traveling, the joints are formed in advance by separating the supply cut series and the existing cut series. Work is started so that the horizontal joints are not aligned, but the relative position of the series of cuts tends to shift due to irregularities in the running surface or slight differences in hardness and softness. In some cases, the horizontal joints were laid in the so-called pattern of the foundation, which overlapped with the horizontal joints that were supposed to be absent, and there was still room for improvement.

本発明は地面に敷設された切り芝が、横方向の目地が重
なることなく千鳥格子状に並ぶようにして、美しい芝地
外観を確実に形成できるようにすることを目的とする。An object of the present invention is to reliably form a beautiful lawn appearance by arranging the cut grass laid on the ground in a houndstooth pattern without overlapping the horizontal joints.

〔課題を解決するための手段〕[Means to solve the problem]

上記目的のために本発明は、芝張り機において、切り芝
を走行機体の進行方向に所定間隔離間させて地上に連続
供給可能な装置を備えると共に、この供給装置による供
給切り芝の、既設側の切り芝に対する機体進行方向での
相対位置を検出する機構と前記所定間隔を変更する機構
とを夫々設け、既設側と供給側における機体進行方向で
隣合う切り芝の離間部どうしが横方向で重ならない状態
に、前記検出機構、前記変更機構及び供給装置を連係す
る制御装置を設けてあることを特徴構成とする。For the above purpose, the present invention provides a lawn machine with a device capable of continuously supplying cut grass to the ground at predetermined intervals in the direction of movement of the traveling machine, and further provides a lawn care machine with a device capable of continuously supplying cut grass to the ground at predetermined intervals in the direction of movement of the traveling machine, and to supply the cut grass supplied by this feeding device to the existing side. A mechanism for detecting the relative position of the cut grass in the direction of movement of the machine with respect to the cut grass, and a mechanism for changing the predetermined interval are respectively provided, and the separated parts of the cut grass adjacent to each other in the direction of movement of the machine on the existing side and the supply side are horizontally aligned. A characteristic configuration is that a control device that links the detection mechanism, the change mechanism, and the supply device is provided in a non-overlapping state.

〔作　用〕[For production]

前記構成によれば、詳しくは実施例で説明するが、検出
機構、変更機構、及び制御装置の働きにより、機体進行
方向に形成される切り連列の隣合うのどうしにおける横
方向の目地が重ならないように制御されるので、敷設後
の芝地は切り芝が千鳥格子状的に配設されるようになる
。According to the above configuration, as will be explained in detail in the examples, the detection mechanism, the change mechanism, and the control device work so that the horizontal joints between adjacent cuts in the series of cuts formed in the direction of movement of the aircraft are overlapped. After the grass is laid, the cut grass is arranged in a houndstooth pattern.

〔発明の効果〕〔Effect of the invention〕

従って、切り芝の供給開始時における既設側切り連列と
の相対位置設定さえすれば、後は走行させるだけで確実
に良好な切り芝による芝地外観が得られる実用価値の高
い芝張り機を提供することかできた。Therefore, all you need to do is set the relative position to the existing side cutting train when starting to supply cut grass, and then just run it and you will be able to reliably obtain a good lawn appearance with cut grass. I was able to provide it.

〔実施例〕〔Example〕

以下に本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below based on the drawings.

第１図に示すように、原動部（１）、運転部（２）を有
した機体（３）に、運転部（２）の後側となる状態で芝
貯留装置（４）、芝乗せ台（５）を配設すると共に、機
体横方向に並ぶ４列の芝供給シュート（６）を有した供
給装置（Ａ）を機体（３）の後部に付設して、４列同時
に芝張りが行えるように、かつ、操向前輪（７）と駆動
後輪（８）とで走行可能にして芝張り機が構成されてい
る。As shown in Fig. 1, a turf storage device (4) and a turf loading platform are attached to a machine body (3) having a driving part (1) and a driving part (2), with the turf storage device (4) on the rear side of the driving part (2). (5), and a feeding device (A) with four rows of grass supply chutes (6) lined up in the lateral direction of the machine is attached to the rear of the machine (3), making it possible to spread grass in four rows at the same time. The lawn mowing machine is constructed in such a manner that it can run with a steering front wheel (7) and a driving rear wheel (8).

前記貯留装置（４）は１０段重ねて一束とした切り芝（
９）・・を前後２列で多数載せた受台（１０）をフレー
ム枠（１１）内に積層しであると共に、油圧シリンダ（
１２）及びその伸縮ロッドに取付けた滑車（１３）、ワ
イヤー（１４）から昇降機構（１５）を構成しである。The storage device (4) stores cut grass (10 layers stacked in a bundle) (
9) cradle (10) on which a large number of... are mounted in two rows, front and back, are stacked inside the frame (11), and a hydraulic cylinder (
12), a pulley (13) attached to the telescopic rod, and a wire (14) to constitute an elevating mechanism (15).

つまり、ワイヤー（１４）の一端を機体フレーム（１６
）に連結し、他端を受台（１ｏ）に連結してあり、上段
の切り芝（９）群に接当して油圧シリンダ（１２）の伸
長動を自動停止させるスイッチ（１７）をフレーム枠（
１１）に設けてある。In other words, connect one end of the wire (14) to the fuselage frame (16).
), and the other end is connected to the pedestal (1o), and a switch (17) that automatically stops the extension movement of the hydraulic cylinder (12) when it comes into contact with the upper group of cut grass (9) is attached to the frame. frame(
11).

この芝張り機では、操縦者の他に、見乗せ台（５）の左
右両横位置に立って貯留切り芝（９）を供給装置（Ａ）
へ順次供給するための作業者か２名搭乗しており、その
作業者かフレーム枠（１１）から上段の切り芝（９）束
を取り出すと昇降機構（１５）を作動させて受台（１０
）を上昇させ、前記スイッチ（１７）の高さまで最上段
の切り芝束が達すると自動停止する。取り出された切り
芝（９）は、２名の作業者の手作業によってシュート（
６）上端の供給ガイド（１８）を有した受入れ口（１９
）に順次落とし込み供給する。In this lawn machine, in addition to the operator, the operator also stands on both the left and right sides of the viewing platform (5) and feeds the stored cut grass (9) to the feeding device (A).
There are two workers on board who are responsible for supplying the grass one by one to the frame (11), and when these workers take out the upper bundle of cut grass (9) from the frame (11), they operate the lifting mechanism (15) and lift it up to the pedestal (10).
), and when the topmost cut grass bundle reaches the height of the switch (17), it automatically stops. The cut grass (9) that has been taken out is put through a chute (9) by hand by two workers.
6) Receptacle (19) with supply guide (18) at the upper end
) and supply them sequentially.

次に、供給装置（Ａ）について説明する。Next, the supply device (A) will be explained.

第１図乃至第３図に示すように、シュート（６）及びこ
のシュート（６）下端部位に設けた搬送機構（Ｂ）、整
地機構（Ｃ）等をロアアーム（２０ａ）とアッパーアー
ム（２０ｂ）から成るパンタグラフ式のリンク機構（２
０）と油圧シリンダ（２１）によって昇降可能に機体（
３）に連結して供給装置（Ａ）を構成しである。搬送機
構（Ｂ）は回転体（２２）と電動モータ（２３）から成
り、シュート側壁（６ａ）により横軸心（Ｐ、）で回転
体（２２）をモータ（２３）で駆動回転可能に支持しで
ある。回転体（２２）はその外周に多数の突起（２２ａ
）・・を設けた円筒形状であり、シュートの芝移送面（
６ｂ）上の切り芝（９）に該突起（２２ａ）が食い込み
作用する状態に近接して配置すると共に、電動モータ（
２３）への通電を人切りすることによる回転体（２２）
の矢印（イ）方向への駆動回転で切り芝（９）をガイド
具（２４）へ向けて強制移送すると共に、その回転停止
によって切り芝（９）をシュート（６）下端位置で係止
維持するのである。As shown in FIGS. 1 to 3, the chute (6), the conveyance mechanism (B), the ground leveling mechanism (C), etc. provided at the lower end of the chute (6) are connected to the lower arm (20a) and the upper arm (20b). A pantograph-type link mechanism consisting of (2
The aircraft (
3) to constitute a supply device (A). The transport mechanism (B) consists of a rotating body (22) and an electric motor (23), and the rotating body (22) is supported by the chute side wall (6a) so that it can be driven and rotated by the motor (23) about the horizontal axis (P, ). It is. The rotating body (22) has many protrusions (22a) on its outer periphery.
)... is cylindrical in shape, and the grass transfer surface of the chute (
The protrusion (22a) is placed close to the cut grass (9) on the cut grass (9) and acts on the cut grass (9), and the electric motor (
Rotating body (22) by cutting off the current supply to 23)
The cut grass (9) is forcibly transferred toward the guide tool (24) by driving rotation in the direction of the arrow (A), and the cut grass (9) is maintained at the lower end position of the chute (6) by stopping the rotation. That's what I do.

前記ガイド具（２４）は、シュート（６）から下降移送
されてくる前上り傾斜状態の切り芝（９）を、地面に沿
う略水平状態に姿勢変更させるためのものであり、シュ
ート（６）下端から所定間隔下方に隔てた状態でシュー
ト側壁（６ａ）の延長部に、横軸心（Ｐ２）回りでの傾
斜角度の調節が可能に支持されている。また、このガイ
ド具（２４）の上方に、ガイド具（２４）上を通過する
切り芝（９）に上方から接触して連れ回りするセンサホ
イール（２５）をアーム（２６）で揺動支持してあり、
このセンサホイール（２５）の回転数を検出することで
地面に到達直前における切り芝（９）の繰り出し速度を
計測可能な速度検出機構（Ｄ）を構成しである。The guide tool (24) is for changing the posture of the cut grass (9), which is being transferred downward from the chute (6) and is in an upwardly sloped state, to a substantially horizontal state along the ground. It is supported by an extension of the chute side wall (6a) at a predetermined distance downward from the lower end so that the angle of inclination about the horizontal axis (P2) can be adjusted. Further, above the guide tool (24), a sensor wheel (25) is swingably supported by an arm (26), which contacts the cut grass (9) passing over the guide tool (24) from above and rotates with it. There is,
It constitutes a speed detection mechanism (D) that can measure the speed at which the cut grass (9) is fed out just before it reaches the ground by detecting the rotational speed of the sensor wheel (25).

第４図乃至第７図に示すように、シュート（６）下端と
ガイド具（２４）の間には、押圧感知センサであるマイ
クロスイッチ（２７）を、その操作部（２７ａ）をその
押圧接当する横軸心（Ｐ４）で揺動自在な舌片（２８）
がシュート（６）の芝移送面（６ｂ）よりも内方（下方
）に若干寄った状態で配設しである。つまり、シュート
（６）下端からガイド具（２４）へ湾曲変形して移送さ
れる切り芝（９）の後端部が、シュート（６）から外れ
たときの湾曲状態から平面状態に戻ろうとする挙動によ
って、切り芝（９）後端が舌片（２８）を押してマイク
ロスイッチ（２７）を作動するのである。マイクロスイ
ッチ（２７）の作動点、舌片（２８）の設定位置、及び
舌片（２８）を上方へ付勢するバネ（４７）の付勢力の
夫々を、シュート（６）に固定の取付部材（２９）に螺
着した４個のボルト（３０）によってその設定位置の微
調節が可能である。As shown in FIGS. 4 to 7, a microswitch (27), which is a pressure sensor, is installed between the lower end of the chute (6) and the guide tool (24), and its operation part (27a) is connected to the pressure sensor. Tongue piece (28) that can swing freely on the corresponding horizontal axis (P4)
is arranged slightly inward (downward) from the turf transfer surface (6b) of the chute (6). In other words, the rear end of the cut grass (9), which is transferred from the lower end of the chute (6) to the guide tool (24) in a curved manner, attempts to return to the flat state from the curved state when it comes off the chute (6). Depending on the behavior, the rear end of the cut grass (9) pushes the tongue (28) and activates the microswitch (27). A mounting member fixed to the chute (6) sets the operating point of the microswitch (27), the set position of the tongue (28), and the biasing force of the spring (47) that biases the tongue (28) upward. The setting position can be finely adjusted by four bolts (30) screwed into (29).

第１図に示すように、後輪（８）とシュート（６）下端
との前後方向間に、前後輪（７）、　（８）の通過跡に
作用する耕耘用のツース（３１）と、このツース（３１
）の直後に配設した鎮圧ローラ（３２）とによって整地
機構（Ｃ）を構成しである。As shown in FIG. 1, between the rear wheel (8) and the lower end of the chute (6) in the front-rear direction, there are tilling teeth (31) that act on the passage marks of the front and rear wheels (7) and (8); This tooth (31
) and a pressing roller (32) disposed immediately after the ground leveling mechanism (C).

ツース（３１）は前側に２本、後側に２本の計４本備え
られ、これらツース（３１）を固定した前向きアーム（
３３）をその後端部をシュート（６）下部に横軸心（ｐ
ｓ）で枢支すると共に、その前側部においては摺動ロッ
ド（３４）と巻きバネ（３５）等から成る緩衝器（３６
）を介して連結することにより、揺動上昇可能としなが
ら下向きに付勢された状態でシュート（６）に取付けら
れている。There are four teeth (31) in total, two on the front side and two on the rear side, and a forward-facing arm (31) to which these teeth (31) are fixed.
33) and its rear end to the lower part of the chute (6) with the horizontal axis (p
A shock absorber (36) consisting of a sliding rod (34), a coiled spring (35), etc. is mounted on the front side of the shock absorber (36).
), it is attached to the chute (6) in a downwardly biased state while being able to swing upward.

鎮圧ローラ（３２）は、アーム（３７）を介してシュー
ト（６）下端に連結され、自重による揺動下降付勢によ
ってツース（３１）による耕耘地面が周囲の地面と同一
高さレベルの状態となるように鎮圧作用する。The pressure roller (32) is connected to the lower end of the chute (6) via an arm (37), and is biased downward by its own weight to ensure that the ground tilled by the teeth (31) is at the same height as the surrounding ground. It acts as a suppressor.

第３図に示すように、切り芝（９）は機体進行方向に所
定間隔離間させて、つまり横目地（離間部）（３８）を
設けて連続供給すると共に、その進行方向に敷設された
切り連列（Ｗ）の既設側と供給側との間にも所定間隔、
つまり縦目地（３９）を形成する。そして、供給装置（
Ａ）によって地面に敷設される供給切り芝（９）の、既
設側切り芝（９）に対する機体進行方向での相対位置を
検出する機構（Ｅ）と前記横目油長さを変更する機構（
Ｆ）とを設けると共に、隣合う既設側°と供給側の切り
連列（Ｗ）、　（Ｗ）どうしの横目地（３８）が横方向
で重ならないように検出機構（Ｅ）、変更機構（Ｆ）及
び供給装置（Ａ）を連係する横目地制御装置（Ｇ）を設
けてある。As shown in Fig. 3, the cut grass (9) is continuously supplied at predetermined intervals in the direction of movement of the machine, that is, by providing horizontal joints (separated parts) (38), and the cut grass (9) is supplied continuously in the direction of movement of the machine. A predetermined interval is also provided between the existing side of the series (W) and the supply side,
In other words, a vertical joint (39) is formed. And the supply device (
A mechanism (E) for detecting the relative position of the supplied cut turf (9) laid on the ground by A) with respect to the existing side cut turf (9) in the direction of movement of the machine; and a mechanism (E) for changing the length of the cross-grain oil.
F), and a detection mechanism (E) and a change mechanism ( A lateral joint control device (G) is provided which coordinates the feed device (A) with the feed device (A).

すなわち、既設切り連列（Ｗ）と、最も切り連列側の供
給切り連列（Ｗ）との上方位置去々に進行方向の切り芝
（９）と横目地（３８）の存在を検出する相対位置検出
機構（Ｅ）としての存否センサ（例えばイメージセンサ
Ｘ４０）、　（４０）を設け、これら両センサ（４０）
、　（４０）による横目地検出状態の相対位相の許容範
囲（例えば、横目地とうしが互いの前後中央となる相対
位置の前後５０−までの範囲）を設定器（４１）で設定
する。That is, the presence of cut grass (9) and horizontal joints (38) in the advancing direction are detected at positions above the existing cutting series (W) and the supply cutting series (W) closest to the cutting series. A presence/absence sensor (for example, image sensor
, (40) (for example, the range up to 50 - before and after the relative position where the horizontal joints are at the center of each other's front and back) is set with the setting device (41).

ところで、搬送機構（Ｂ）の回転体（２２）は、マイク
ロスイッチ（２７）の作動から一定時間後に回転駆動さ
れて切り芝（９）を降下させることにより、一定長さの
横目地（３８）か形成できるようにタイマー制御されて
いる。By the way, the rotary body (22) of the conveyance mechanism (B) is driven to rotate after a certain period of time from the operation of the microswitch (27) and lowers the cut grass (9), thereby forming a horizontal joint (38) of a certain length. It is timer controlled to allow configuration.

そこで、前記相対位相か設定範囲からずれることを制御
装置（Ｇ）が認識すると、マイクロスイッチ（２７）起
動から電動モータ（２３）駆動開始までのタイムラグを
自動的に長短操作することによる供給切り芝（９）の横
目地（３８）長さの増減調節によって、前記相対位相が
設定範囲内の値となるように制御されるのである。例え
ば、供給切り芝（９）による横目地（３８）が既設切り
連列（Ｗ）の横目地（３８）に対して進行方向前側に寄
り過ぎると前記タイムラグを若干短縮して供給切り芝（
９）による横目地長さを少し小とするのである。Therefore, when the control device (G) recognizes that the relative phase deviates from the set range, it automatically increases or decreases the time lag between the activation of the microswitch (27) and the start of driving the electric motor (23). By adjusting the length of the horizontal joint (38) in (9), the relative phase is controlled to a value within the set range. For example, if the horizontal joint (38) of the supplied cut grass (9) is too close to the front side in the advancing direction with respect to the horizontal joint (38) of the existing cut series (W), the time lag may be slightly shortened and the supplied cut grass (
9), the horizontal joint length is made slightly smaller.

尚、前記センサーホイール（２５）と運転部（２）に備
えられた速度計（４２）も制御装置（Ｇ）に接続されて
おり、機体の走行速度から設定した横目地（３８）か形
成できるように該制御装置（Ｇ）かタイムラグを演算し
て電動モータ（２３）を駆動している。Incidentally, the sensor wheel (25) and the speedometer (42) provided in the driving section (2) are also connected to the control device (G), and a horizontal joint (38) can be formed based on the traveling speed of the aircraft. The control device (G) calculates the time lag and drives the electric motor (23).

従って、横目地（３８）長さを設定範囲内の値に維持す
る制御は機体の走行速度も考慮されて総合的に判断され
るように働くのである（第８図参照）。Therefore, the control for maintaining the length of the horizontal joint (38) within the set range is performed in such a way that the traveling speed of the aircraft is also taken into consideration (see FIG. 8).

参考に、横目地制御の例を挙げると、位相の相対ずれを
上下５０ｍｍとし、回転体（２２）による切り芝繰出し
速度が１２５ｍｍ／ｓｅｅである場合に、横目地長さを
切り芝１枚当たり４ＩＩＩＩＸＩずつ変更する段となる
。For reference, to give an example of horizontal joint control, if the relative phase shift is 50 mm up and down and the cutting grass delivery speed by the rotating body (22) is 125 mm/see, then the horizontal joint length is cut per piece of grass. The stage is changed by 4IIIIXI.

本実施例では、搬送機構（Ｂ）と横目地制御装置（Ｇ）
から変更機構（Ｆ）か構成される。In this example, the conveyance mechanism (B) and the horizontal joint control device (G)
A change mechanism (F) is constructed from.

また、第９図に示すように、既設切り連列（Ｗ）と最も
既設側の供給切り連列（Ｗ）との間の縦目地（３９）の
幅を一定値に保つ縦目地制御装置（Ｈ）を設けてある。In addition, as shown in FIG. 9, a vertical joint control device ( H) is provided.

すなわち、後向きで揺動昇降する接触片（４３）を複数
本（５本）並列して成る縦目地センサ（４４）を設ける
と共に、シュート（６）を左右傾動可能に支持するリン
ク機構（２０）に作用する油圧シリンダ（４５）及び制
御弁（４６）から制御装置（Ｈ）を構成する。That is, a vertical joint sensor (44) is provided in which a plurality (5 pieces) of contact pieces (43) are arranged in parallel to swing up and down in a backward direction, and a link mechanism (20) that supports the chute (6) so as to be tiltable left and right is provided. A control device (H) is composed of a hydraulic cylinder (45) and a control valve (46) that act on the hydraulic cylinder (45) and the control valve (46).

つまり、例えば第２接触片（４３ａ）までが既設芝に乗
り上げ、第３接触片（４３ｂ）以降が地面上にある状態
で、縦目地（３９）の幅が設定範囲内の値になるように
構成し、機体進行に伴って第２接触片（４３ａ）が地面
上に落ちる（縦目地が広くなる）とシリンダ（４５）を
右動して供給装置（Ａ）を機体（３）進行方向に対して
右横へ移動させると共に、第３接触片（４３ｂ）が芝土
に乗り上る（縦目地か狭くなる）とシリンダ（４５）を
左動させて供給装置（Ａ）を機体（３）に対して左横へ
移動するといった具合に制御して、縦目地（３９）の幅
を自動的に設定範囲内の値に維持する。前記油圧シリン
ダ（４５）は供給装置（Ａ）の左右動に対するチエツク
チェーン的機能を発揮している。In other words, for example, with the second contact piece (43a) up to the existing grass and the third contact piece (43b) onwards on the ground, the width of the vertical joint (39) should be within the set range. When the second contact piece (43a) falls on the ground as the aircraft moves (the vertical joint becomes wider), the cylinder (45) is moved to the right to move the supply device (A) in the direction of movement of the aircraft (3). When the third contact piece (43b) climbs onto the lawn (the vertical joint becomes narrower), the cylinder (45) is moved to the left and the feeding device (A) is moved to the body (3). In contrast, the width of the vertical joint (39) is automatically maintained at a value within the set range by controlling the width of the vertical joint (39) by moving it horizontally to the left. The hydraulic cylinder (45) functions as a check chain for the horizontal movement of the supply device (A).

また、第１Ｏ図に示すように、油圧シリンダ（４５）に
代えて、前輪（７）のパワーステアリング装置（１）を
制御弁（４６）に接続し、縦目地センサ（４４）の検出
に基づいて左右にステアリングさせることにより、縦目
地幅を設定範囲内の値に維持するようにして縦目地制御
装置（Ｈ）を構成しても良い。In addition, as shown in Fig. 1O, instead of the hydraulic cylinder (45), the power steering device (1) for the front wheels (7) is connected to the control valve (46), and based on the detection of the vertical joint sensor (44), The vertical joint control device (H) may be configured to maintain the vertical joint width within a set range by steering the vertical joint left and right.

〔別実施例〕[Another example]

検出機構（Ｅ）はイメージセンサの他、超音波センサや
、連間と凹入した目地との段差を利用しての接触式セン
サ等でも良い。また変更機構（Ｆ）としてはモータ（２
３）の回転数を変化させる手段によるものであっても良
い。The detection mechanism (E) may be an image sensor, an ultrasonic sensor, a contact type sensor using a step between a continuous space and a recessed joint, or the like. In addition, the changing mechanism (F) is a motor (2
3) may also be implemented by means of changing the number of rotations.

また、存否センサ（４０）を省略し、マイクロスイッチ
（２７）とセンサホイール（２５）及び制御装置（Ｇ）
との演算結果によって横目地を制御する手段も考えられ
る。In addition, the presence/absence sensor (40) is omitted, and the microswitch (27), sensor wheel (25), and control device (G) are
It is also conceivable to control the horizontal joints based on the calculation results.

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。Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

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

図面は本発明に係る芝張り機の実施例を示し、第１図は
全体側面図、第２図は供給装置の下端部の拡大断面図、
第３図は切り芝の敷設状態を示す平面図、第４図はセン
サ支持部の構造を示す要部の平面図、第５図は第４図の
Ｖ−Ｖ線断面図、第６図は第４図のＶＩ−ＶＩ線断面図
、第７図は第４図の■−■線断面図、第８図は制御系統
図、第９図は縦目地制御装置の構造を示す平面図、第１
０図は縦目地制御装置の別実施例を示す構造図である。 （３）・・・・・・機体、（９）・・・・・・切り芝、
（Ａ）・・・・・・供給装置、（Ｅ）・・・・・・検出
機構、（Ｆ）・・・・・・変更機構。The drawings show an embodiment of the lawn mowing machine according to the present invention, in which Fig. 1 is an overall side view, Fig. 2 is an enlarged sectional view of the lower end of the feeding device,
Fig. 3 is a plan view showing how cut grass is laid, Fig. 4 is a plan view of main parts showing the structure of the sensor support section, Fig. 5 is a sectional view taken along the line V-V in Fig. 4, and Fig. 6 is a plan view showing the state of laying cut grass. FIG. 4 is a sectional view taken along line VI-VI, FIG. 7 is a sectional view taken along line ■-■ in FIG. 4, FIG. 8 is a control system diagram, FIG. 9 is a plan view showing the structure of the vertical joint control device, 1
FIG. 0 is a structural diagram showing another embodiment of the vertical joint control device. (3)... Airframe, (9)... Cut grass,
(A)... Supply device, (E)... Detection mechanism, (F)... Change mechanism.

Claims (1)

【特許請求の範囲】[Claims] 切り芝（９）を走行機体（３）の進行方向に所定間隔離
間させて地上に連続供給可能な装置（Ａ）を備えると共
に、この供給装置（Ａ）による供給切り芝（９）の、既
設側の切り芝（９）に対する機体進行方向での相対位置
を検出する機構（Ｅ）と前記所定間隔を変更する機構（
Ｆ）とを夫々設け、既設側と供給側における機体進行方
向で隣合う切り芝（９）、（９）の離間部（３８）、（
３８）どうしが横方向で重ならない状態に、前記検出機
構（Ｅ）、前記変更機構（Ｆ）及び供給装置（Ａ）を連
係する制御装置（Ｇ）を設けてある芝張り機。It is equipped with a device (A) that can continuously supply cut grass (9) to the ground at predetermined intervals in the direction of travel of the traveling machine (3), and is equipped with an existing equipment for supplying cut grass (9) by this feeding device (A). a mechanism (E) for detecting the relative position in the direction of movement of the aircraft with respect to the side cut grass (9); and a mechanism (E) for changing the predetermined interval (
F) are provided respectively, and separated parts (38), (
38) A lawn machine that is provided with a control device (G) that links the detection mechanism (E), the change mechanism (F), and the supply device (A) so that they do not overlap in the lateral direction.