JP5837865B2 - Dump vehicle - Google Patents

Dump vehicle Download PDF

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JP5837865B2
JP5837865B2 JP2012199782A JP2012199782A JP5837865B2 JP 5837865 B2 JP5837865 B2 JP 5837865B2 JP 2012199782 A JP2012199782 A JP 2012199782A JP 2012199782 A JP2012199782 A JP 2012199782A JP 5837865 B2 JP5837865 B2 JP 5837865B2
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packing box
box
rail
rotating shaft
cargo box
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JP2014054884A (en
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惠久 田畑
惠久 田畑
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惠久 田畑
惠久 田畑
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Description

本発明は、荷箱を後方へ傾けて荷降ろしするダンプ車両に関し、詳しくは高さ制限のある場所で荷降ろしを可能にする技術に関する。   The present invention relates to a dump vehicle that tilts a cargo box rearward and unloads it, and more particularly to a technique that enables unloading at a place with a height restriction.

従来のダンプ車両は、荷箱の後端部を車体のシャシーフレームの後端部に枢支し、そのシャシーフレームと荷箱の下面との間に荷箱を押し上げるシリンダーを設けた構造が一般的である(例えば特許文献1参照)。このシリンダーを伸張させると、荷箱が枢支位置を支点にして後方へ傾いて積み荷が後方へ流れ、リアゲートを開放させることで荷降ろしが行われる。   Conventional dump vehicles generally have a structure in which the rear end of the cargo box is pivotally supported by the rear end of the chassis frame of the vehicle body, and a cylinder is provided between the chassis frame and the lower surface of the cargo box to push up the cargo box. (For example, see Patent Document 1). When this cylinder is extended, the load box tilts backward with the pivot position as a fulcrum, the load flows backward, and the unloading is performed by opening the rear gate.

ところで、ダンプ車両は、積み荷が残りにくいように荷箱を高く押し上げられるようになっている。しかし、屋内や上方に障害物がある場合など高さ制限のある場所で荷降ろしする際、荷箱が建屋や障害物に接触して困難な場合があった。また、荷箱を高い位置で傾けようとすると、積み荷の重量や偏りによっては車両のバランスを崩すことがあり、転倒する危険性があった。   By the way, the dump vehicle is configured to push the load box high so that the load is unlikely to remain. However, when unloading at places where height is restricted, such as when there are obstacles indoors or above, there are cases where it is difficult for the packing box to contact the building or obstacles. In addition, if the load box is tilted at a high position, the balance of the vehicle may be lost depending on the weight or bias of the load, and there is a risk of falling.

実用新案登録第3140481号公報Utility Model Registration No. 3140481

本発明が解決しようとする課題は、従来のこれらの問題点を解消し、高さ制限のある場所で荷降ろしを可能にすることにある。また、荷降ろし時に車両のバランスを崩れにくくして安定した荷降ろしを可能にすることにある。   The problem to be solved by the present invention is to solve these conventional problems and to enable unloading at a place where the height is limited. Another object of the present invention is to enable stable unloading by making it difficult to disturb the balance of the vehicle when unloading.

かかる課題を解決した本発明の構成は、
1) 荷箱を後方へ傾けて荷降ろしするダンプ車両において、車体のシャシーフレームに前後方向へ伸びるレールを設け、そのレール上に前記荷箱を載せ、その荷箱をレール上で前後移動させる移動用シリンダーを設け、荷箱の前後間の重心位置又はその重心よりやや後方位置に荷箱を傾倒可能にする回転軸を左右方向に設け、その回転軸を脱着可能に保持する軸受をシャシーフレームの後端部に設け、その軸受に回転軸が保持された状態の荷箱を傾倒させる傾倒用シリンダーを設けた、ダンプ車両
にある。
The configuration of the present invention that solves this problem is as follows.
1) In a dump vehicle that tilts the cargo box backwards and unloads, a rail that extends in the front-rear direction is provided on the chassis frame of the vehicle body, the cargo box is placed on the rail, and the cargo box is moved back and forth on the rail. The cylinder is provided with a rotating shaft that can tilt the packing box in the left-right direction at the center of gravity position between the front and rear of the packing box or at a position slightly behind the center of gravity. The dump vehicle is provided with a tilting cylinder for tilting the packing box in a state where the rotating shaft is held on the bearing at the rear end.

本発明によれば、移動用シリンダーで荷箱を後退させ、回転軸を軸受に保持させる。その後、傾倒用シリンダーで荷箱を押し上げると、回転軸を支点にして荷箱の前方が押し上げられ、従来技術より低い位置で荷降ろしに必要な角度に傾く。よって、高さ制限のある場所でも荷降ろしが可能となる。また、荷箱を低い位置で傾けることで、積み荷が重い場合や偏りがあっても車両のバランスが崩れにくくなり、転倒の危険性が少ないものとなる。   According to the present invention, the packing box is moved backward by the moving cylinder, and the rotating shaft is held by the bearing. After that, when the packing box is pushed up by the tilting cylinder, the front of the packing box is pushed up with the rotating shaft as a fulcrum, and tilts to an angle required for unloading at a position lower than the prior art. Therefore, unloading is possible even in places with height restrictions. In addition, by tilting the packing box at a low position, even if the load is heavy or uneven, the balance of the vehicle is less likely to be lost, and the risk of falling is reduced.

実施例のダンプ車両の側面図である。It is a side view of the dump vehicle of an Example. 実施例の荷箱の背面図である。It is a rear view of the packing box of an Example. 実施例の荷箱の後退と傾きを示す説明図である。It is explanatory drawing which shows the retreat and inclination of the packing box of an Example.

以下、本発明を実施するための形態を実施例と図面に基づいて具体的に説明する。   DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be specifically described based on examples and drawings.

図1,2に示すダンプ車両1は、トラクター2にトレーラー3を連結して牽引するダンプトレーラーであって、そのトレーラー3の左右のシャシーフレーム4の上面に前後方向へ伸びるレール5が取り付けられ、そのレール5上に荷箱6が移動可能に設置されている。図中、6aはリアゲート、3aは車輪である。   A dump vehicle 1 shown in FIGS. 1 and 2 is a dump trailer that connects and pulls a trailer 3 to a tractor 2, and rails 5 extending in the front-rear direction are attached to the upper surfaces of the left and right chassis frames 4 of the trailer 3. A packing box 6 is movably installed on the rail 5. In the figure, 6a is a rear gate and 3a is a wheel.

荷箱6の前後間の重心よりやや後方位置には、左右方向に伸びる回転軸7が取り付けられ、その回転軸7を脱着可能に保持する軸受8がシャシーフレーム4の後端部に取り付けられている。荷箱6の前後の下部には、荷箱6をレール5上で摺動させる摺動フレーム9が一体的に取り付けられ、レール5と嵌合して荷箱6を移動可能に支持している。   A rotating shaft 7 extending in the left-right direction is attached to a position slightly rearward of the center of gravity between the front and rear of the packing box 6, and a bearing 8 that holds the rotating shaft 7 in a detachable manner is attached to the rear end portion of the chassis frame 4. Yes. A sliding frame 9 for sliding the packing box 6 on the rail 5 is integrally attached to the lower part of the front and rear of the packing box 6, and the packing box 6 is movably supported by fitting with the rail 5. .

移動用シリンダー10は油圧式で、前後方向へ向けてシャシーフレーム4に取り付けられ、その伸縮ロッド10aの先端部に鍔部10bが形成され、その鍔部10bと脱着可能に連結されるフック6bが荷箱6の底面位置に形成されている。この移動用シリンダー10を荷箱6のフック6bと連結されている状態で伸縮させることで、荷箱6がレール5上で前後方向へ移動し、回転軸7がレール5の中間位置と軸受8で保持される位置との間を移行するようになっている。   The moving cylinder 10 is hydraulic, and is attached to the chassis frame 4 in the front-rear direction. A hook portion 10b is formed at the tip of the telescopic rod 10a, and a hook 6b is detachably connected to the hook portion 10b. It is formed at the bottom surface position of the packing box 6. By expanding and contracting the moving cylinder 10 in a state where it is connected to the hook 6 b of the packing box 6, the packing box 6 moves in the front-rear direction on the rail 5, and the rotating shaft 7 moves between the intermediate position of the rail 5 and the bearing 8. It shifts between the positions held by

傾倒用シリンダー11は油圧式で、シャシーフレーム4の後部左右に2体取り付けられ、その伸縮ロッド11aの先端部と当接される受け部6cが荷箱6の底面位置に2箇所形成されている。この傾倒用シリンダー11を回転軸7が軸受8で保持されている状態で伸張させることで、その伸縮ロッド11aの先端部が受け部6cと当接して荷箱6が押し上げられ、回転軸7を支点にして後方へ傾くようになっている。   Two tilting cylinders 11 are hydraulically attached to the left and right rear portions of the chassis frame 4, and two receiving portions 6 c that are in contact with the distal end portions of the telescopic rods 11 a are formed at two positions on the bottom surface of the cargo box 6. . By extending the tilting cylinder 11 while the rotary shaft 7 is held by the bearing 8, the tip of the telescopic rod 11 a comes into contact with the receiving portion 6 c, and the cargo box 6 is pushed up. It is designed to tilt backward as a fulcrum.

図3に示すように、移動用シリンダー10を伸張させて荷箱6を後退させると、回転軸7が軸受8に嵌合されて保持され、荷箱6の後方が浮いた状態となる。その後、左右の傾倒用シリンダー11を伸張させて荷箱6を押し上げると、フック6bが移動用シリンダー10の伸縮ロッド10aから外れ、荷箱6が従来技術より低い位置で荷降ろしに必要な角度に傾く。積み荷は後方へ流れ、リアゲート6aを開放することで荷降ろしが行われる。   As shown in FIG. 3, when the moving cylinder 10 is extended to retract the cargo box 6, the rotary shaft 7 is fitted and held in the bearing 8, and the rear of the cargo box 6 is in a floating state. Thereafter, when the left and right tilting cylinders 11 are extended and the packing box 6 is pushed up, the hook 6b is detached from the telescopic rod 10a of the moving cylinder 10, and the packing box 6 is at an angle required for unloading at a position lower than the prior art. Tilt. The cargo flows backward and unloading is performed by opening the rear gate 6a.

荷降ろしが終了し、傾倒用シリンダー11を収縮させると、荷箱6が自重で下がってレール5上に載り、フック6bが移動用シリンダー10の伸縮ロッド10aの鍔部10bに嵌合する。次いで、移動用シリンダー10を収縮させると、荷箱6が引っ張られて回転軸7が軸受8から外れ、荷箱6が前進して元の位置に復帰する。   When the unloading is completed and the tilting cylinder 11 is contracted, the cargo box 6 is lowered by its own weight and rests on the rail 5, and the hook 6b is fitted to the flange 10b of the telescopic rod 10a of the moving cylinder 10. Next, when the moving cylinder 10 is contracted, the packing box 6 is pulled, the rotating shaft 7 is detached from the bearing 8, and the packing box 6 moves forward and returns to the original position.

このように、荷箱6を従来技術のように高く押し上げることなく積み荷が排出されるから、建屋や障害物等に接触しやすい高さ制限のある場所でも荷降ろしが可能となっている。また、荷箱6を低い位置で傾けることで、積み荷が重い場合や偏りがあっても車両のバランスが崩れにくくなり、転倒の危険性が少ないものとなっている。   Thus, since the load is discharged without pushing up the packing box 6 as high as in the prior art, it is possible to unload at a place where there is a height restriction that is likely to contact a building or an obstacle. In addition, by tilting the packing box 6 at a low position, even when the load is heavy or uneven, the balance of the vehicle is less likely to be lost, and the risk of falling is reduced.

本発明の技術は、単体のダンプカーやトラクターに牽引されるダンプトレーラーなどダンプ車両一般に利用される。   The technology of the present invention is generally used for dump vehicles such as a single dump truck and a dump trailer towed by a tractor.

1 ダンプ車両
2 トラクター
3 トレーラー
3a 車輪
4 シャシーフレーム
5 レール
6 荷箱
6a リアゲート
6b フック
6c 受け部
7 回転軸
8 軸受
9 摺動フレーム
10 移動用シリンダー
10a 伸縮ロッド
10b 鍔部
11 傾倒用シリンダー
11a 伸縮ロッド
DESCRIPTION OF SYMBOLS 1 Dump vehicle 2 Tractor 3 Trailer 3a Wheel 4 Chassis frame 5 Rail 6 Cargo box 6a Rear gate 6b Hook 6c Receiving part 7 Rotating shaft 8 Bearing 9 Sliding frame 10 Moving cylinder 10a Telescopic rod 10b Elevator 11 Tilt cylinder 11a Telescopic rod

Claims (1)

荷箱を後方へ傾けて荷降ろしするダンプ車両において、車体のシャシーフレームに前後方向へ伸びるレールを設け、そのレール上に前記荷箱を載せ、その荷箱をレール上で前後移動させる移動用シリンダーを設け、荷箱の前後間の重心位置又はその重心よりやや後方位置に荷箱を傾倒可能にする回転軸を左右方向に設け、その回転軸を脱着可能に保持する軸受をシャシーフレームの後端部に設け、その軸受に回転軸が保持された状態の荷箱を傾倒させる傾倒用シリンダーを設けた、ダンプ車両。   In a dump vehicle that tilts the cargo box backward and unloads, a moving cylinder that provides a rail that extends in the front-rear direction on the chassis frame of the vehicle body, places the cargo box on the rail, and moves the cargo box back and forth on the rail A rotating shaft is provided in the left-right direction to enable the cargo box to tilt in the left-right direction at a position of the center of gravity between the front and rear of the packing box or slightly behind the center of gravity, and a bearing that holds the rotating shaft so as to be detachable is provided at the rear end of the chassis frame. A dump vehicle provided with a tilting cylinder for tilting the packing box in a state where the rotating shaft is held on the bearing.
JP2012199782A 2012-09-11 2012-09-11 Dump vehicle Active JP5837865B2 (en)

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JP2012199782A JP5837865B2 (en) 2012-09-11 2012-09-11 Dump vehicle

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JP5837865B2 true JP5837865B2 (en) 2015-12-24

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113859084A (en) * 2021-11-16 2021-12-31 山东蓬翔汽车有限公司 Intelligent driving wide dumper with middle-turning type container

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56131435A (en) * 1980-03-17 1981-10-15 Kanto Tokushiya Hanbai Kk Device for moving and tilting bed of autotruck
JP2529126Y2 (en) * 1990-08-17 1997-03-19 古河機械金属株式会社 Truck tilting moving device for lorry

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