JPH0351691Y2 - - Google Patents

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Publication number
JPH0351691Y2
JPH0351691Y2 JP6329585U JP6329585U JPH0351691Y2 JP H0351691 Y2 JPH0351691 Y2 JP H0351691Y2 JP 6329585 U JP6329585 U JP 6329585U JP 6329585 U JP6329585 U JP 6329585U JP H0351691 Y2 JPH0351691 Y2 JP H0351691Y2
Authority
JP
Japan
Prior art keywords
blade
sensor kit
bracket
ground
detection
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
Application number
JP6329585U
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Japanese (ja)
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JPS61181311U (en
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
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Priority to JP6329585U priority Critical patent/JPH0351691Y2/ja
Publication of JPS61181311U publication Critical patent/JPS61181311U/ja
Application granted granted Critical
Publication of JPH0351691Y2 publication Critical patent/JPH0351691Y2/ja
Expired legal-status Critical Current

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  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Description

【考案の詳細な説明】 （産業上の利用分野） 本考案は、モータグレーダなどの整地機械にお
けるブレードに設けられたブレードレベル検出装
置に関するものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a blade level detection device provided on a blade of an earth leveling machine such as a motor grader.

（従来の技術） モータグレーダについて従来例を説明すると、
第５，６図に示すように機体ａにサークルｂを水
平面内で旋回操作可能に装着し、サークルｂの下
部にガイドブラケツトｃを水平軸ｄにより垂直面
内で回動可能に枢着するとともに、サークルｂと
ガイドブラケツトｃのガイド溝c1間に回り止めｅ
を設け、ガイドブラケツトｃ装着されたブレード
ｆが、サークルｂの垂直軸線イを中心にして水平
面内で旋回操作され、かつガイドブラケツトｃと
ともに水平軸ｄを中心にして矢示方向に傾斜調節
される構造になつている。(Conventional technology) To explain the conventional example of a motor grader,
As shown in Figures 5 and 6, a circle b is mounted on the aircraft a so that it can be rotated in a horizontal plane, and a guide bracket c is pivotally attached to the lower part of the circle b so that it can be rotated in a vertical plane by a horizontal axis d. , a rotation stopper e between circle b and guide groove c 1 of guide bracket c.
The blade f attached to the guide bracket c is rotated in a horizontal plane about the vertical axis a of the circle b, and the inclination is adjusted in the direction of the arrow about the horizontal axis d together with the guide bracket c. It's structured.

さらに、第７図に示すようにブレードｆの背側
に上、下ブラケツト1a，1bを突設し、上、下ブラ
ケツト1a，1b間に縦軸２を設け、縦軸２に検出棒
４上端の横軸３を装着するとともに、縦軸２と前
記横軸３間にセンサー５を設けて、第７図に示す
ようにブレードｆによる土砂等の敷均し作業時
に、検出棒４の下端部が、その自重あるいはバネ
付勢（図示省略）によつて下向きの力を受け基準
地面（路盤）g0に沿つて移動し、縦軸２の軸線ロ
に対する検出棒４の傾斜角をセンサー５で検出し
て、前記検出値によつて基準地面g0に対するブレ
ードｆ下縁部のレベルを検出し、即ち基準地面g0
と敷均し面g1との敷均し層高ｈが検出されるセン
サーキツト１０を装着したブレードレベル検出装
置になつている。 Further, as shown in Fig. 7, upper and lower brackets 1a and 1b are provided protruding from the back side of the blade f, and a vertical shaft 2 is provided between the upper and lower brackets 1a and 1b . The horizontal shaft 3 at the upper end of the detection rod 4 is attached, and a sensor 5 is installed between the vertical shaft 2 and the horizontal shaft 3, and as shown in FIG. The lower end of the detection rod 4 receives a downward force due to its own weight or spring bias (not shown) and moves along the reference ground (roadbed) g0 , and the inclination angle of the detection rod 4 with respect to the axis B of the vertical axis 2 is is detected by the sensor 5, and the level of the lower edge of the blade f with respect to the reference ground g 0 is detected based on the detected value, that is, the level of the lower edge of the blade f with respect to the reference ground g 0
The blade level detection device is equipped with a sensor kit 10 for detecting the leveling layer height h between the leveling surface g1 and the leveling surface g1 .

（従来技術の問題点） 従来の前記ブレードレベル検出装置において
は、ガイドブラケツトｃとともにブレードｆの傾
斜角度を変更調節すると、それに伴つて縦軸２つ
まりセンサーキツト１０の軸線ロが例えば第８図
に示すロ′に傾斜され、センサーキツト１０の軸
線に対する検出棒４の相対角度が変化するため、
センサーキツト１０のセンサー５の検出値に狂い
が生じ、検出精度が著しく低下される問題点があ
る。(Problems with the Prior Art) In the conventional blade level detecting device, when the inclination angle of the blade f is changed and adjusted together with the guide bracket c, the vertical axis 2, that is, the axis lo of the sensor kit 10, changes as shown in FIG. 8, for example. Since the relative angle of the detection rod 4 with respect to the axis of the sensor kit 10 changes as shown in FIG.
There is a problem in that the detected value of the sensor 5 of the sensor kit 10 is distorted, and the detection accuracy is significantly reduced.

（考案の目的、問題点の解決手段） 本案は、前記のような問題点に対処するための
考案であつて、ブレードの背部に、水平軸まわり
に回動自在に枢支された検出棒と該検出棒の回動
角度を検出する手段とを有し該検出棒の先端が地
面に当接したときの回動角度にもとづいて地面に
対するブレードのレベルを検出するセンサキツト
を設けてなる整地機械において、 前記センサキツトを取付けたブラケツトの下部
を水平軸まわりに回動自在にブレードに軸支する
一方、該ブラケツトの上部とブレードとを伸縮調
整機能付連結部材で連結した構成に特徴を有し、
ブレードの背側にセンサーキツトの取付ブラケツ
トを枢着するとともに、ブレードの取付ブラケツ
トの上部間を伸縮機構付連結部材で連結すること
により、ブレードに対するセンサーキツトの相対
的な取付角度を調整自在にして検出精度を向上さ
せ前記のような問題点を解消した整地機械のブレ
ードレベル検出装置を提供するにある。(Purpose of the invention, means for solving problems) This invention is an invention to deal with the above-mentioned problems, and includes a detection rod rotatably supported around a horizontal axis on the back of the blade. A ground leveling machine comprising: means for detecting the rotation angle of the detection rod; and a sensor kit for detecting the level of the blade relative to the ground based on the rotation angle when the tip of the detection rod contacts the ground. , characterized in that the lower part of the bracket to which the sensor kit is attached is rotatably supported on the blade about a horizontal axis, and the upper part of the bracket and the blade are connected by a connecting member with a telescopic adjustment function,
By pivoting the mounting bracket of the sensor kit on the back side of the blade and connecting the upper parts of the mounting brackets of the blade with a connecting member with a telescoping mechanism, the mounting angle of the sensor kit relative to the blade can be freely adjusted. It is an object of the present invention to provide a blade level detection device for a ground leveling machine that improves detection accuracy and eliminates the above-mentioned problems.

（考案の実施例） 第１図ないし第４図に本考案の一実施例を示し
ており、図中２０は第５，６図に示したようにガ
イドブラケツトに装着され水平軸を中心として傾
斜調節可能に設けられたブレードであつて、セン
サーキツド１０に取付ブラケツト１１を固設し、
該取付ブラケツト１１の下部をブレード２０の背
側下部に水平のピボツト軸１２で枢着するととも
に、取付ブラケツト１１の上部とブレード２０の
上部間に、伸縮機構付連結部材３０を連結した構
成になつている。(Embodiment of the invention) An embodiment of the invention is shown in Figs. 1 to 4, and 20 in the drawings is attached to a guide bracket and tilted about a horizontal axis as shown in Figs. 5 and 6. The blade is adjustable and has a mounting bracket 11 fixed to the sensor kit 10.
The lower part of the mounting bracket 11 is pivotally connected to the lower back side of the blade 20 by a horizontal pivot shaft 12, and a connecting member 30 with a telescopic mechanism is connected between the upper part of the mounting bracket 11 and the upper part of the blade 20. ing.

前記センサーキツド１０は、取付ブラケツト１
１に固設された上、下ブラケツト１a，１bと、
上、下ブラケツト１a，１b間に装着された縦軸２
と、縦軸２のブラケツト２aに装着された検出棒
４の軸３と、該軸３から下方に突設された検出棒
４と、ブラケツト２aと軸３間に配設されたセン
サー５とからなり、その検出機能は第７，８図に
示した従来例と同様な構成になつている。 The sensor kit 10 is mounted on a mounting bracket 1.
upper and lower brackets 1 a and 1 b fixedly attached to 1;
Vertical shaft 2 installed between upper and lower brackets 1 a and 1 b
, the shaft 3 of the detection rod 4 attached to the bracket 2 a of the vertical shaft 2, the detection rod 4 protruding downward from the shaft 3, and the sensor 5 disposed between the bracket 2 a and the shaft 3. The detection function has the same configuration as the conventional example shown in FIGS. 7 and 8.

また、前記伸縮機構付連結部材３０について詳
述すると、取付ブラケツト１１の上端部にクレビ
スピン３１aで枢着されたクレビス３２aと、ブレ
ード２０の上端部にクレビスピン３１bで枢着さ
れたクレビス３２bと、クレビス３２aと３２bの
内端側に螺合された左、右ネジ付のネジ棒３３
と、ネジ棒３３の中央部に固設された伸縮調整ナ
ツト３４、およびネジ棒３３に螺合されたロツク
ナツト３５によつて構成され、ネジ棒３３の回転
操作によつて伸縮操作されるターンバツクル機構
付連結部材になつている。 Further, in detail, the connecting member 30 with a telescopic mechanism includes a clevis 32 a that is pivotally attached to the upper end of the mounting bracket 11 with a clevis pin 31 a , and a clevis 32 that is pivotally attached to the upper end of the blade 20 with a clevis pin 31 b . b , and a threaded rod 33 with left and right threads screwed into the inner ends of clevises 32 a and 32 b .
, a telescoping adjustment nut 34 fixed to the center of the threaded rod 33, and a lock nut 35 screwed to the threaded rod 33, and a turnbuckle mechanism that is expanded and contracted by rotating the threaded rod 33. It serves as a connecting member.

（作用） 本考案の実施例は、前記のような構成になつて
いるので、第３図に示すようにブレード２０を側
面視で垂直状態にした作業状態において、伸縮機
構付連結部材３０の長さを中尺に調節すると、セ
ンサーキツト１０の軸線ロが垂直に位置され、セ
ンサー５の検出値が基準地面g0に対するブレード
２０下縁のレベル、換言すると基準地面g0と敷均
し面g1間の敷均し層高ｈが正確に検出されるよう
に設定されており、正確な検出性能が得られる。(Function) Since the embodiment of the present invention has the above-described configuration, the length of the connecting member 30 with the telescoping mechanism can be adjusted in the working state in which the blade 20 is in the vertical position when viewed from the side as shown in FIG. When the height is adjusted to a medium height, the axis of the sensor kit 10 is positioned vertically, and the detected value of the sensor 5 is the level of the lower edge of the blade 20 with respect to the reference ground g0, in other words, the level of the lower edge of the blade 20 with respect to the reference ground g0 and the leveling surface g It is set so that the leveled layer height h between 1 and 1 is accurately detected, and accurate detection performance can be obtained.

また、第４図に示すようにブレード２０を例え
ば前倒させた前傾姿勢にすると、伸縮機構付連結
部材３０を長尺にしてセンサーキツト１０の軸線
ロを垂直に調節でき、ブレード２０の傾斜変更に
伴う検出精度の狂いを容易に解消できる。 Further, as shown in FIG. 4, when the blade 20 is placed in a forward-inclined position, for example, the connecting member 30 with a telescoping mechanism is made elongated, and the axis of the sensor kit 10 can be adjusted vertically, and the inclination of the blade 20 can be adjusted vertically. Discrepancies in detection accuracy caused by changes can be easily resolved.

なお、ブレード２０を水平面内で旋回させて
も、前記軸線ロを中心にして検出棒４の下端側が
旋回可能になつているため、検出機構に応力が生
じないとともに、検出精度の狂いが解消される。
また、前記実施例では、ピボツト軸１２を用いて
いるがボールジヨイント等によつて枢着すること
も可能であり、前記伸縮機構付連結部材３０は、
ターンバツクル機構のほかにシリンダ等の伸縮機
構によることもできる。 Note that even if the blade 20 is rotated in a horizontal plane, the lower end side of the detection rod 4 can be rotated about the axis RO, so that stress is not generated in the detection mechanism and errors in detection accuracy are eliminated. Ru.
Further, although the pivot shaft 12 is used in the above embodiment, it is also possible to use a ball joint or the like for pivotal connection, and the connecting member 30 with the telescoping mechanism is
In addition to the turnbuckle mechanism, a telescopic mechanism such as a cylinder may also be used.

（考案の効果） 前述のように本考案は、ブレードの背側に基準
地面の検出棒４と該検出棒の回動角度を検出する
手段とを有するセンサーキツトを装着した整地機
械のブレードレベル検出装置において、ブレード
２０にセンサーキツト１０の取付ブラケツト１１
を枢着１２するとともに、ブレード２０と取付ブ
ラケツト１１の上部間を伸縮調整機構付連結部材
３０で連結しているので、伸縮調整機構付連結部
材３０の伸縮操作によつてセンサーキツト１０の
傾斜をなくして最適の姿勢に簡単に調整でき、検
出精度を高めることができるとともに、ブレード
２０が傾斜されても前記姿勢調整が可能であつ
て、検出性能、信頼性が著しく向上されている。(Effects of the invention) As mentioned above, the present invention detects the blade level of a ground leveling machine equipped with a sensor kit having a reference ground detection rod 4 on the back side of the blade and a means for detecting the rotation angle of the detection rod. In the device, the mounting bracket 11 of the sensor kit 10 is attached to the blade 20.
Since the blade 20 and the upper part of the mounting bracket 11 are connected by a connecting member 30 with a telescopic adjustment mechanism, the inclination of the sensor kit 10 can be adjusted by expanding and contracting the connecting member 30 with a telescopic adjustment mechanism. Without the blade 20, the optimum attitude can be easily adjusted and the detection accuracy can be improved.Also, even if the blade 20 is tilted, the attitude can be adjusted, and the detection performance and reliability are significantly improved.

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

第１図は本考案の一実施例を示す側面図、第２
図は第１図の斜視図、第３図は第１図の使用態様
を示す側面図、第４図は他の使用態様を示す側面
図、第５図は従来のブレード取付機構を示す側面
図、第６図は第５図の一使用態様を示す側面図、
第７図は従来のブレードレベル検出装置を示す側
面図、第８図は第７図におけるブレード傾斜状態
を示す側面図である。 ４……検出棒、１０……センサーキツト、１１
……取付ブラケツト、１２……ピボツト軸（枢
着）、２０……ブレード、３０……伸縮機構付連
結部材。 Figure 1 is a side view showing one embodiment of the present invention;
The figure is a perspective view of Fig. 1, Fig. 3 is a side view showing the mode of use shown in Fig. 1, Fig. 4 is a side view showing another mode of use, and Fig. 5 is a side view showing the conventional blade attachment mechanism. , FIG. 6 is a side view showing one usage mode of FIG. 5,
FIG. 7 is a side view showing a conventional blade level detection device, and FIG. 8 is a side view showing the blade inclination state in FIG. 4...Detection rod, 10...Sensor kit, 11
...Mounting bracket, 12...Pivot shaft (pivot attachment), 20...Blade, 30...Connecting member with telescopic mechanism.

Claims (1)

【実用新案登録請求の範囲】 ブレードの背部に、水平軸まわりに回動自在に
枢支された検出棒と該検出棒の回動角度を検出す
る手段とを有し該検出棒の先端が地面に当接した
ときの回動角度にもとづいて地面に対するブレー
ドのレベルを検出するセンサキツトを設けてなる
整地機械において、 前記センサキツトを取付けたブラケツトの下部
を水平軸まわりに回動自在にブレードに軸支する
一方、該ブラケツトの上部とブレードとを伸縮調
整機能付連結部材で連結したことを特徴とする整
地機械のブレードレベル検出装置。[Claims for Utility Model Registration] A detection rod is rotatably supported around a horizontal axis on the back of the blade, and means for detecting the rotation angle of the detection rod. In a ground leveling machine equipped with a sensor kit that detects the level of the blade relative to the ground based on the angle of rotation when the blade contacts the ground, the lower part of the bracket to which the sensor kit is attached is pivotally supported on the blade so as to be rotatable around a horizontal axis. A blade level detection device for a ground leveling machine, characterized in that the upper part of the bracket and the blade are connected by a connecting member with a telescopic adjustment function.
JP6329585U 1985-04-30 1985-04-30 Expired JPH0351691Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6329585U JPH0351691Y2 (en) 1985-04-30 1985-04-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6329585U JPH0351691Y2 (en) 1985-04-30 1985-04-30

Publications (2)

Publication Number Publication Date
JPS61181311U JPS61181311U (en) 1986-11-12
JPH0351691Y2 true JPH0351691Y2 (en) 1991-11-07

Family

ID=30593300

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6329585U Expired JPH0351691Y2 (en) 1985-04-30 1985-04-30

Country Status (1)

Country Link
JP (1) JPH0351691Y2 (en)

Also Published As

Publication number Publication date
JPS61181311U (en) 1986-11-12

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