JPS5913762Y2 - Safety devices in reapers - Google Patents
Safety devices in reapersInfo
- Publication number
- JPS5913762Y2 JPS5913762Y2 JP1978014216U JP1421678U JPS5913762Y2 JP S5913762 Y2 JPS5913762 Y2 JP S5913762Y2 JP 1978014216 U JP1978014216 U JP 1978014216U JP 1421678 U JP1421678 U JP 1421678U JP S5913762 Y2 JPS5913762 Y2 JP S5913762Y2
- Authority
- JP
- Japan
- Prior art keywords
- operating rod
- reaper
- frame
- safety device
- pin
- 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
Links
Landscapes
- Harvester Elements (AREA)
- Agricultural Machines (AREA)
Description
【考案の詳細な説明】 本案は刈取機の安全装置に関する。[Detailed explanation of the idea] This proposal concerns a safety device for reapers.
従来、トラクターに装着される刈取機の安全装置は公知
である。Conventionally, safety devices for reapers mounted on tractors are known.
公知の安全装置とは、圃場において刈取作業中に刈刃体
が避けることができない不測の障害物にぶつかった時や
、密生牧草が刈刃体に大量にからみついて刈取不可能な
時に、刈刃体の破損を防止する為に、刈刃体がフレーム
の支軸を中心として後方へ回動するものである。A well-known safety device is a safety device that prevents the cutting blade from colliding with an unforeseen obstacle that cannot be avoided during harvesting in the field, or when a large amount of dense grass is entangled with the cutting blade and cannot be harvested. In order to prevent damage to the cutting blade body, the cutting blade body rotates rearward around the support shaft of the frame.
この従来の安全装置3の具体的な構成は、第6図ないし
第9図を参照して、トラクターのローアリンクにローア
リンクピンにより保合突起3Aを有する前部枠体3Bを
連結し、該枠体に収納された作動杆3Cの後方は刈取機
のフレームに固着したブラケットにピンで枢着し、前記
作動杆の前方には、ばね3Dで押圧された係合爪3Eを
設け、安全装置の非作動時には爪と突起は、ばねの押圧
により係合しているが、作業中刈刃体が障害物にぶつが
った時等には刈刃体は支軸を中心に後方へ回動しようと
する力が与えられるので、衝激力で突起により爪は上方
へ押し上げられて離脱して、作動杆は後方へスライドし
、刈刃体は後方へ回動し障害物のショックから回避する
ものである。The specific configuration of this conventional safety device 3 is as shown in FIGS. 6 to 9, in which a front frame body 3B having a retaining protrusion 3A is connected to a lower link of a tractor by a lower link pin. The rear of the operating rod 3C housed in the frame body is pivotally connected to a bracket fixed to the frame of the reaper with a pin, and the front of the operating rod is provided with an engaging pawl 3E pressed by a spring 3D to provide a safety device. When the blade is not in operation, the claws and protrusions are engaged by the pressure of the spring, but when the cutting blade hits an obstacle during work, the cutting blade rotates backward around the spindle. As a force is applied to the mower, the claw is pushed upward by the protrusion due to the impact force and detached, the operating rod slides backward, and the cutting blade rotates backward to avoid the shock of the obstacle. It is something.
本案は、この公知の安全装置に更に改良を施したもので
、フレームの限られた狭いスペースでも取付けてきうる
ようにコンパクトな形態の安全装置を提供するもので、
しかもコンパクトであるにもかかわらず安全装置が作動
する時には、大きな逃げ角度を得るようにしたもので、
以下図面に基き説明する。The present invention is a further improvement on this known safety device, and provides a safety device in a compact form so that it can be installed even in a narrow and limited space of the frame.
Moreover, although it is compact, it has a large escape angle when the safety device is activated.
This will be explained below based on the drawings.
1は本案の刈取機における安全装置である。1 is a safety device in the reaper of the present invention.
そして、その構成は上面と下面に断面C状のスライド用
溝IA、IBを形成した枠体ICの下方スライド用溝1
Bには、前部作動杆1Dを摺動自在に嵌合し、上記前部
作動杆の先端にはローアリンクピン2■の貫入用のピン
穴1Eが穿設され、上記ピン穴の少しく内方位置の上面
には突起1Fが突設され、上記枠体の上方スライド用溝
1Aには後部作動杆1Gを摺動自在に嵌合し、上記後部
作動杆の後端には刈取機2のフレーム2Aに取付けたブ
ラケツ)2Bに連結するピン2Cを貫入するピン穴1H
を穿設し、先端には上記突起に係合する係合爪1■を、
当該係合爪に穿設した小孔1Jと上記後部作動杆上面に
突設した小突起1にとを遊嵌して連結すると共に、上記
係合爪は下方へ作用する圧縮バネ1Lで常時上記後部作
動杆に押圧されている。The configuration is as follows: A downward sliding groove 1 of a frame IC, in which sliding grooves IA and IB with a C-shaped cross section are formed on the upper and lower surfaces.
A front actuating rod 1D is slidably fitted into B, and a pin hole 1E for insertion of the lower link pin 2 is bored at the tip of the front actuating rod, and a pin hole 1E for insertion of the lower link pin 2 is formed a little inside the pin hole. A projection 1F is provided protrudingly on the upper surface of the upper side position, and a rear operating rod 1G is slidably fitted into the upper sliding groove 1A of the frame, and a rear operating rod 1G is fitted to the rear end of the rear operating rod. Bracket attached to frame 2A) Pin hole 1H that passes through pin 2C connected to frame 2B
is bored, and the tip has an engaging claw 1■ that engages with the above protrusion.
A small hole 1J drilled in the engagement claw and a small protrusion 1 protruding from the upper surface of the rear operating rod are loosely fitted and connected, and the engagement claw is always connected to the above by a compression spring 1L acting downward. It is pressed against the rear operating rod.
図中、IA’、 IB’はストッパー、1Dは前部作
動杆に突出せしめた上記ストッパー1B′に係合する突
起、l L’は調節ネジ、1L“は調節ナツト、2Dは
トラクター、2Eはローアリンク、2Fは支軸、2Gは
デスク、2H,2H’は刈刃体をそれぞれ示す。In the figure, IA' and IB' are stoppers, 1D is a projection protruding from the front operating rod that engages with the stopper 1B', lL' is an adjustment screw, 1L'' is an adjustment nut, 2D is a tractor, and 2E is a The lower link, 2F is the spindle, 2G is the desk, and 2H and 2H' are the cutting blade bodies, respectively.
次に本案の作用を説明すると、刈取作業中に刈刃体に障
害物がぶつかった時や密生牧草が大量に絡みついて、即
ち後方への回転モーメントが一定以上の時にのみ刈取機
2は支軸2Fを中心として後方へ回動し、刈取機2を圃
場の障害物等から回避し、刈取機2を衝撃荷重から守る
ものである。Next, to explain the function of the present invention, the reaper 2 only moves when the cutting blade collides with an obstacle during reaping work, or when a large amount of dense grass is entangled, that is, when the backward rotational moment exceeds a certain level. It rotates rearward around 2F to avoid the reaper 2 from obstacles in the field and protect the reaper 2 from impact loads.
そして、その場でそのままトラクタ2Dを後退させれば
、刈取機2は支軸2Fを中心として前方へ回動し、これ
に伴い安全装置1全体は圧縮されるから後部作動杆1G
は前方へスライドし、前部作動杆1Dは後方へスライド
するから突起1Fの後方傾斜面部へ係合爪1■の先端部
が圧縮バネ1Lの圧縮力に抗して、前方に滑りながら移
動し、第3図示の通り係合爪1■は、突起1Fに係合ロ
ックし、刈取機2全体は刈取姿勢となる。If the tractor 2D is moved backwards on the spot, the reaper 2 will rotate forward around the support shaft 2F, and the entire safety device 1 will be compressed accordingly, so the rear operating rod 1G will be compressed.
slides forward, and the front actuating rod 1D slides backwards, so the tip of the engagement claw 1■ slides forward against the rear inclined surface of the projection 1F against the compression force of the compression spring 1L. As shown in the third figure, the engaging claw 12 engages and locks the protrusion 1F, and the entire reaping machine 2 assumes the reaping posture.
この後にトラクタのローアリンク2Eを上昇させ、刈取
機2全体を上昇させ、障害物等から回避させ当該刈取機
2の安全を保護するものである。After this, the lower link 2E of the tractor is raised to raise the entire reaper 2 to avoid obstacles and protect the safety of the reaper 2.
一般的にこの種の刈取機が5〜7ksn/hで作業中に
、仮りに障害物等にぶつかった場合、800〜1000
icgの荷重(作業抵抗)により、刈取機2が後方へ
回動するよう、調節ナツト1L″により圧縮バネ1Lの
圧縮力を設定しておくことが望ましいことが経験的に知
られている。Generally speaking, if this type of reaper hits an obstacle while working at 5 to 7 ksn/h, it will generate 800 to 1000 ksn/h.
It has been empirically known that it is desirable to set the compression force of the compression spring 1L using the adjustment nut 1L'' so that the reaper 2 rotates rearward due to the icg load (work resistance).
本案においても、前記800〜1000kgの荷重(作
業抵抗)にて、刈取機2が後方へ回動するよう圧縮バネ
1Lの圧縮力を設定してあり、前記以下の数値に設定す
れば一寸した作業抵抗でも安全装置1が作動し、刈取機
2は後方へ回動するしく安全装置の効き過ぎ)、又、前
記以上の数値に設定すれば、安全装置1が仲々作動せず
(安全装置の作動不良)、安全上好ましくないこととな
る。In this case as well, the compression force of the compression spring 1L is set so that the reaping machine 2 rotates rearward under a load (work resistance) of 800 to 1000 kg. Even if there is resistance, the safety device 1 will be activated, causing the reaper 2 to rotate backwards (the safety device is too effective), and if it is set to a value higher than the above, the safety device 1 will not activate (the safety device will not activate). (defective), which is unfavorable from a safety standpoint.
本案のものは上述の如く構成されているから次の効果を
有する。Since the present invention is constructed as described above, it has the following effects.
A 安全装置作動時に前部作動杆及び後部作動杆が同時
に前方及び後方に離脱するので、従来の安全装置の2倍
の変位置となって、刈刃体の逃げ角度は従来よりも大き
くなり、従い、刈刃体が障害物等にぶつかった時でもシ
ョックを最少限に喰い止めることができる。A: When the safety device is activated, the front operating lever and rear operating lever move forward and backward at the same time, resulting in twice the displacement of the conventional safety device, and the clearance angle of the cutting blade is larger than before. Therefore, even when the cutting blade body collides with an obstacle, the shock can be minimized.
B トラクターのローアリンクピンとフレームとの間に
取付けられる本安全装置は、従来装置より大きな逃げ角
度が得られるから、本案装置をコンパクトに構成するこ
とが可能であり、従って限られた狭い取付個所でも本案
装置を容易に取付けでき得しかも、大きな逃げ角度を得
ることができる
C 特に本案によれば、トラクターローアリンクピンと
刈取機フレームの取付寸法Xを小さくできるので、刈取
機の全長りを小さくすることができ、従って刈取機の重
心位置が前方へ位置するので、刈取機をトラクターロー
アリンクで上昇降下作業が従来よりも楽になり、また、
刈取機を上昇させてトラクターで移動する際でもトラク
ターの前輪荷重が小さくなることがないので安全走行で
きる。B This safety device, which is installed between the tractor's lower link pin and the frame, provides a larger clearance angle than conventional devices, so the proposed device can be configured compactly, so it can be installed even in limited narrow installation locations. The proposed device can be easily installed, and a large relief angle can be obtained. In particular, according to the present invention, the installation dimension X between the tractor lower link pin and the reaper frame can be reduced, so the overall length of the reaper can be reduced. As a result, the center of gravity of the reaper is positioned forward, making it easier to raise and lower the reaper using the tractor lower link than before.
Even when the reaper is raised and moved by the tractor, the load on the front wheels of the tractor does not decrease, allowing safe driving.
Wは刈取機の幅である。D 安全装置の操作はすべてト
ラクタの座席上から行うことができる。W is the width of the reaper. D. All safety devices can be operated from the tractor seat.
この場合、安全装置の作動した都度トラクタから降りて
操作する煩雑さがない。In this case, there is no need to get off the tractor and operate the safety device every time the safety device is activated.
など、数多くの利点を有する有用な考案である。This is a useful device with many advantages.
図面は本案の1実施例を示すもので、第1図は本装置を
施した刈取機の全体の平面図、第2図は本案のものの平
面図、第3図は同上のA−A線における作動前の断面図
、第4図は第2図のA−A線における作動後の断面図、
第5図は第3図のB−B線断面図、第6図は従来のもの
の平面図、第7図は同上のC−C線における作動前の断
面図、第8図は第6図のC−C線における作動後の断面
図、第9図は第7図のD−D線断面図である。
1・・・・・・安全装置、IA、IB・・・・・・スラ
イド用溝、1C・・・・・・枠体、1D・・・・・・前
部作動杆、1E・・・・・・ピン穴、1F・・・・・・
突起、1G・・・・・・後部作動杆、1H・・・・・・
ピン穴、11・・・・・・係合爪、IJ・・・・・・小
孔、1K・・・・・・小突起、1L・・・・・・圧縮バ
ネ。The drawings show one embodiment of the present invention; Fig. 1 is a plan view of the entire reaper equipped with this device, Fig. 2 is a plan view of the proposed device, and Fig. 3 is a view taken along line A-A of the same. 4 is a sectional view taken along line A-A in FIG. 2 after operation;
Fig. 5 is a sectional view taken along line B-B in Fig. 3, Fig. 6 is a plan view of the conventional device, Fig. 7 is a sectional view taken along line C-C of the same as above before operation, and Fig. 8 is a sectional view of Fig. 6. FIG. 9 is a cross-sectional view taken along line C-C after operation, and FIG. 9 is a cross-sectional view taken along line D-D in FIG. 7. 1... Safety device, IA, IB... Slide groove, 1C... Frame, 1D... Front operating rod, 1E... ...Pin hole, 1F...
Protrusion, 1G... Rear operating rod, 1H...
Pin hole, 11...Engaging claw, IJ...Small hole, 1K...Small protrusion, 1L...Compression spring.
Claims (1)
下方スライド用溝には、前部作動杆を摺動自在に嵌合し
、上記前部作動杆の先端にはローアリンクピン貫入用の
ピン穴が穿設され、上記ピン穴の少しく内方位置の上面
には突起が突設され、上記枠体の上方スライド用溝には
後部作動杆を摺動自在に嵌合し、上記後部作動杆の後端
には刈取機のフレームに取付けたブラケットに連結する
ピンを貫入するピン穴を穿設し、先端には上記突起に係
合する係合爪を、当該係合爪に穿設した小孔と上記後部
作動杆上面に突設した小突起とを遊嵌して連結すると共
に、上記係合爪は下方へ作用する圧縮バネで常時上記後
部作動杆に押圧されていることを特徴とする刈取機にお
ける安全装置。A front operating rod is slidably fitted into the lower sliding groove of the frame, which has sliding grooves with cross-sectional openings formed on the upper and lower surfaces, and a lower link pin penetrates into the tip of the front operating rod. A pin hole is drilled for the purpose, a protrusion is provided on the upper surface at a position slightly inward of the pin hole, and a rear operating lever is slidably fitted into the upward sliding groove of the frame body. A pin hole is drilled at the rear end of the rear operating rod through which a pin connected to a bracket attached to the frame of the reaper is inserted, and an engaging claw that engages with the above-mentioned protrusion is drilled at the tip. The provided small hole and the small protrusion projecting on the upper surface of the rear operating rod are loosely fitted and connected, and the engaging pawl is constantly pressed against the rear operating rod by a compression spring acting downward. Features a safety device in the reaper.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1978014216U JPS5913762Y2 (en) | 1978-02-06 | 1978-02-06 | Safety devices in reapers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1978014216U JPS5913762Y2 (en) | 1978-02-06 | 1978-02-06 | Safety devices in reapers |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54117725U JPS54117725U (en) | 1979-08-17 |
JPS5913762Y2 true JPS5913762Y2 (en) | 1984-04-23 |
Family
ID=28833727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1978014216U Expired JPS5913762Y2 (en) | 1978-02-06 | 1978-02-06 | Safety devices in reapers |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5913762Y2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6687971B2 (en) * | 2015-08-12 | 2020-04-28 | 株式会社ササキコーポレーション | Mower |
JP6856920B2 (en) * | 2016-09-23 | 2021-04-14 | 株式会社ササキコーポレーション | Mower |
JP7045113B2 (en) * | 2021-02-22 | 2022-03-31 | 株式会社ササキコーポレーション | Mower |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4823516B1 (en) * | 1969-11-03 | 1973-07-13 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5315713Y2 (en) * | 1971-07-22 | 1978-04-25 |
-
1978
- 1978-02-06 JP JP1978014216U patent/JPS5913762Y2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4823516B1 (en) * | 1969-11-03 | 1973-07-13 |
Also Published As
Publication number | Publication date |
---|---|
JPS54117725U (en) | 1979-08-17 |
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