JPS6326449Y2 - - Google Patents

Description

【考案の詳細な説明】 本考案は建設機械、除雪機械等の走行車両の前
部に装着される作業機の取付装置に関するもので
ある。[Detailed Description of the Invention] The present invention relates to a mounting device for a working machine that is mounted on the front of a traveling vehicle such as a construction machine or a snow removal machine.

走行車両の前部に作業機を装着し、走行車両を
走行させて地均し作業除雪等を実施する場合に、
作業機が障害物等に衝突して過負荷が作用すると
破損してしまう。 When a work machine is attached to the front of a moving vehicle and the vehicle is running to perform ground leveling, snow removal, etc.
If the work equipment collides with an obstacle or the like and is overloaded, it will be damaged.

このために、従来は作業機をシヤピン等を介し
て走行車両の前部に装着し、作業機が衝突した時
にはシヤピンが切断して作業機が過負荷を緩和す
る方向に移動して作業機の破損を防止している。 For this reason, conventionally, the work equipment was attached to the front of the traveling vehicle via a shear pin, etc., and when the work equipment collided, the shear pin broke off and the work equipment moved in a direction that alleviated the overload. Prevents damage.

しかし、この構造であると一度シヤピンが切断
すると作業機の取付姿勢が変つてしまい、再度装
着する場合には装着姿勢に作業機を移動しなけれ
ばならずその作業が非常に面倒である。 However, with this structure, once the shear pin is cut off, the mounting position of the working machine changes, and when the shear pin is to be reattached, the working machine must be moved to the mounting position, which is very troublesome.

本考案は上記の事情に鑑みなされたものであ
り、その目的は作業機に過負荷が作用すると装着
姿勢を維持して緩和する方向に移動するようにし
た走行車両の作業機取付装置を提供することであ
る。 The present invention was developed in view of the above-mentioned circumstances, and its purpose is to provide a work equipment mounting device for a traveling vehicle that, when an overload is applied to the work equipment, moves in a direction that maintains the mounting position and alleviates the overload. That's true.

以下図面を参照して本考案の実施例を説明す
る。 Embodiments of the present invention will be described below with reference to the drawings.

走行車両Ａの車体１の前端面には取付板２が固
設され、該取付板２には一対のリンク３，４を介
して可動体５が上下揺動自在に連結してあり、該
取付板２と可動体５との間にはシリンダ６が枢着
連結してあると共に、可動体５には作業機（ブレ
ード）７が取付けてある。 A mounting plate 2 is fixed to the front end surface of the vehicle body 1 of the traveling vehicle A, and a movable body 5 is connected to the mounting plate 2 via a pair of links 3 and 4 so as to be able to swing vertically. A cylinder 6 is pivotally connected between the plate 2 and the movable body 5, and a working device (blade) 7 is attached to the movable body 5.

前記リンク４と可動体５とは次のようにして枢
着連結してある。 The link 4 and the movable body 5 are pivotally connected as follows.

つまり、リンク４には横向コ字状のブラケツト
１０が固設され、該ブラケツト１０の縦壁１０ａ
にはガイド杆となるネジ杆１１が前方に向けて嵌
挿支承してあり、そのネジ部１１ａは取付片１２
のネジ穴１３内に螺合連結されかつ両者間にはバ
ネ１４が設けられていると共に、取付片１２が取
付体５にピン１５で枢着連結してある。 That is, a horizontal U-shaped bracket 10 is fixed to the link 4, and the vertical wall 10a of the bracket 10
A threaded rod 11 serving as a guide rod is fitted and supported toward the front, and its threaded portion 11a is attached to the mounting piece 12.
A spring 14 is provided between the screw holes 13 of the mounting body 5 and a mounting piece 12 is pivotally connected to the mounting body 5 by a pin 15.

該取付片１２の上下フランジ１６，１６とブラ
ケツト１０の上下折曲壁１０ｂ，１０ｂとには連
杆１７，１７がそれぞれ挿通支承され、連杆１７
の一端にはナツト１８が螺合されてフランジ１６
に連結してあり、他端はブラケツト１０の横壁１
０ｃに固設した突片１９にシヤピン２０を介して
連結してある。 Continuous rods 17, 17 are inserted and supported in the upper and lower flanges 16, 16 of the mounting piece 12 and the upper and lower bent walls 10b, 10b of the bracket 10, respectively.
A nut 18 is screwed to one end of the flange 16.
The other end is connected to the side wall 1 of the bracket 10.
It is connected via a shear pin 20 to a protruding piece 19 fixedly attached to 0c.

しかして、作業機７が障害物等に衝突して過負
荷が作用すると取付片１２に図中右方への力Ｆが
作用し、連杆１７が右方に移動しようとするの
で、第５図に示すようにシヤピン２０が切断され
て取付片１２が右方に移動するから作業機７も右
方に移動して過負荷を緩和する。 However, when the work equipment 7 collides with an obstacle or the like and an overload is applied, a force F to the right in the figure acts on the mounting piece 12, and the connecting rod 17 tries to move to the right. As shown in the figure, since the shear pin 20 is cut and the mounting piece 12 moves to the right, the work implement 7 also moves to the right to alleviate the overload.

この時、連杆１７及びネジ杆１１がブラケツト
１０に沿つて右方に移動し取付片１２とブラケツ
ト１０とは連結されているから作業機７は上下方
向に揺動変位することなく装着姿勢を保持する。 At this time, the connecting rod 17 and the threaded rod 11 move to the right along the bracket 10, and since the mounting piece 12 and the bracket 10 are connected, the work implement 7 can maintain the mounting posture without swinging in the vertical direction. Hold.

そして、シリンダ６によつて取付体５を上方に
揺動して作業機７を上方に揺動変位すると作業機
７に作用する負荷がなくなるので取付片１２はバ
ネ１４で前方に押動され第６図に示すようにネジ
杆１１の頭部１１ｂがブラケツト縦壁１０ａに当
接し、連杆１７がブラケツト折曲壁１０ｂより抜
け出す。 Then, when the mounting body 5 is swung upward by the cylinder 6 and the work implement 7 is swung upward, the load acting on the work implement 7 is removed, so the mounting piece 12 is pushed forward by the spring 14 and As shown in FIG. 6, the head 11b of the screw rod 11 comes into contact with the vertical wall 10a of the bracket, and the connecting rod 17 comes out of the bent wall 10b of the bracket.

したがつて、取付片１２とブラケツト１０とが
分解することがないと共に、再度組立てる場合に
は切断したシヤピン２０を取外した後にネジ杆１
１をガイドとして取付片１２をバネ１４に杆して
右方に移動して連杆１７を突片１９まで移動させ
て新らしいシヤピン２０を嵌合して連結すれば良
い。 Therefore, the mounting piece 12 and the bracket 10 will not be disassembled, and when reassembling the screw rod 1 after removing the cut shear pin 20.
1 as a guide, attach the mounting piece 12 to the spring 14, move it to the right, move the connecting rod 17 to the protruding piece 19, and fit the new shear pin 20 to connect it.

本考案は以上の用になり、作業機７に過負荷が
作用すると取付片１２をバネ１４に抗して移動す
る力が作用し、その力は連杆１７とシヤピン２０
を介してブラケツト１０で支持されるので、シヤ
ピン２０にせん断力が作用してシヤピン２０が切
断するから、連杆１７とガイド杆１１が過負荷に
よりブラケツト１０に対して移動し、作業機７が
過負荷を緩和する方向に移動して作業機７が破損
することを防止できる。 The purpose of the present invention is as described above. When an overload is applied to the working machine 7, a force is applied to move the mounting piece 12 against the spring 14, and this force is applied to the connecting rod 17 and the shear pin 20.
Since it is supported by bracket 10 through It is possible to prevent the working machine 7 from being damaged due to movement in a direction that alleviates the overload.

この時、取付片１２は複数の連杆１７とガイド
杆でブラケツト１０に支持されていて上下方向に
変位しないので、作業機７は装着姿勢を保持でき
る。 At this time, the mounting piece 12 is supported by the bracket 10 by a plurality of connecting rods 17 and guide rods and is not displaced in the vertical direction, so that the working machine 7 can maintain its attached posture.

また、作業機７に作用する負荷をなくすと取付
片１２はバネ１４により押されて連杆１７がブラ
ケツト１０より抜け出し、再び取付片１２をバネ
１４に抗してガイド杆をガイドとして押し込み連
杆１７とブラケツト１０とに亘つてシヤピン２０
を嵌合すれば作業機７を車体側に連結でき、その
作業が簡単となる。 Furthermore, when the load acting on the work machine 7 is removed, the mounting piece 12 is pushed by the spring 14 and the connecting rod 17 comes out of the bracket 10, and the mounting piece 12 is pushed again against the spring 14 using the guide rod as a guide and the connecting rod is pushed back. 17 and the shear pin 20 between the bracket 10
By fitting them together, the working machine 7 can be connected to the vehicle body, making the work easier.

また、作業機７に作用する過負荷はシヤピン２
０に直接作用するからシヤピン２０を確実に切断
できて信頼性が優れたものとなる。 In addition, the overload acting on the work equipment 7 is caused by the shear pin 2
Since it acts directly on the shear pin 20, the shear pin 20 can be reliably cut, resulting in excellent reliability.

また、作業機７側に取付けた取付片１２はガイ
ド杆と複数の連杆１７でブラケツト１０に支持さ
れているから、作業機７を車体１側に強固に連結
できて作業機７を上下変位する際にガタツクこと
がない。 Furthermore, since the mounting piece 12 attached to the work implement 7 side is supported by the bracket 10 by a guide rod and a plurality of connecting rods 17, the work implement 7 can be firmly connected to the vehicle body 1 side, and the work implement 7 can be moved vertically. There is no wobbling when doing so.

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

図面は本考案の実施例を示すものであり、第１
図は全体正面図、第２図は要部詳細図、第３図は
分解図、第４図は連杆連結部の分解斜視図、第５
図、第６図は動作説明図である。 １は車体、２は作業機、１１はガイド杆、１７
は連杆、２０はシヤンピ。 The drawings show an embodiment of the present invention.
The figure is an overall front view, Figure 2 is a detailed view of the main parts, Figure 3 is an exploded view, Figure 4 is an exploded perspective view of the connecting rod connection part, Figure 5
FIG. 6 is an explanatory diagram of the operation. 1 is the vehicle body, 2 is the work equipment, 11 is the guide rod, 17
is consecutive, 20 is syanpi.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 車体１側にブラケツト１０を取付けると共に、
作業機７側に取付片１２を取付け、該取付片１２
にガイド杆の一端部と複数の連杆１７の一端部を
相互に平行となるように前記ブラケツト１０に向
けてそれぞれ連結し、このガイド杆の中間部と複
数の連杆１７の中間部を前記ブラケツト１０に摺
動自在に嵌合すると共に、前記連杆１７の他端部
と前記ブラケツト１０とをシヤピン２０で連結
し、前記ガイド杆の他端部には抜け出し防止用の
頭部１１ａを取付けると共に、ブラケツト１０と
取付片１２とに亘つて、取付片１２を前記ストツ
パ１１ａがブラケツト１０に当接し、かつ連杆１
７がブラケツト１０より抜け出す位置に付勢する
バネ１４を取付けたことを特徴とする走行車両の
作業機取付装置。 Attach the bracket 10 to the vehicle body 1 side, and
Attach the mounting piece 12 to the work machine 7 side, and
One end of the guide rod and one end of the plurality of connecting rods 17 are connected to the bracket 10 so as to be parallel to each other, and the intermediate portion of the guide rod and the intermediate portion of the plurality of connecting rods 17 are connected to the It is slidably fitted into the bracket 10, and the other end of the connecting rod 17 and the bracket 10 are connected by a shear pin 20, and a head 11a for preventing slippage is attached to the other end of the guide rod. At the same time, the stopper 11a abuts the mounting piece 12 on the bracket 10 over the bracket 10 and the mounting piece 12, and the connecting rod 1
A work equipment mounting device for a running vehicle, characterized in that a spring 14 is attached to urge the work equipment 7 to a position where the work equipment 7 comes out of the bracket 10.