JPS6031941Y2 - Dump truck with crane - Google Patents
Dump truck with craneInfo
- Publication number
- JPS6031941Y2 JPS6031941Y2 JP16662879U JP16662879U JPS6031941Y2 JP S6031941 Y2 JPS6031941 Y2 JP S6031941Y2 JP 16662879 U JP16662879 U JP 16662879U JP 16662879 U JP16662879 U JP 16662879U JP S6031941 Y2 JPS6031941 Y2 JP S6031941Y2
- Authority
- JP
- Japan
- Prior art keywords
- crane
- dump
- crane device
- dump bed
- bed
- 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
- Jib Cranes (AREA)
Description
【考案の詳細な説明】
本考案は、縦軸芯周りでの回動によりダンプ荷台の上方
位置とそれから外れた位置とに位置変更自在なりレーン
装置を備え、かつ、前記クレーン装置が前記ダンプ荷台
の上方位置に在る事の検出に基いて前記ダンプ荷台の上
昇操作を不能にする牽制機構を設けであるクレーン付ダ
ンプ車に関する。[Detailed description of the invention] The present invention is provided with a lane device whose position can be freely changed between a position above the dump bed and a position away from the dump bed by rotation around a vertical axis, and wherein the crane device is mounted on the dump bed. The present invention relates to a dump vehicle with a crane, which is provided with a check mechanism that disables the lifting operation of the dump platform based on detection that the dump platform is located in an upper position.
上記のクレーン付ダンプ車は、重量物や壊れやすい荷物
の積み降しの作業、及び搭載荷の運搬並びに放出の作業
を、一台でもって能率良く安全に行なえるようにするも
のである。The above-mentioned crane-equipped dump truck is capable of efficiently and safely carrying out the work of loading and unloading heavy and fragile goods, as well as the transporting and unloading of loaded loads.
従来、クレーン装置がダンプ荷台の上方位置に在る事の
検出に基いてダンプ荷台の上昇操作を不能にする牽制機
構として、ダンプ荷台を駆動揺動させる流体圧シリンダ
ーの油圧回路に、流体圧シリンダーの伸長を不能にする
ためのリリーフ回路を設け、このリリーフ回路に設けた
バルブの操作をクレーン装置の回動と連動させるように
構成したものがある。Conventionally, a hydraulic cylinder is installed in the hydraulic circuit of the fluid pressure cylinder that drives and oscillates the dump bed as a check mechanism that disables the lifting operation of the dump bed based on the detection that the crane device is located above the dump bed. There is a structure in which a relief circuit is provided to disable extension of the crane, and the operation of a valve provided in this relief circuit is linked to the rotation of the crane device.
このように構成したものは、たとえ作業者がダンプ荷台
の揺動操作具を誤って操作しても、クレーン装置がダン
プ荷台の上方位置にあれば、ダンプ荷台は上昇しないの
であるが、このときリリーフ回路を通過する作動油の油
温か上昇して、作動油を早期に劣化させる原因となる。With this structure, even if a worker accidentally operates the swinging device of the dump bed, the dump bed will not rise if the crane device is positioned above the dump bed. The temperature of the hydraulic oil passing through the relief circuit increases, causing early deterioration of the hydraulic oil.
また、ダンプ荷台の揺動操作具を上昇側に保持したまま
クレーン装置を操作した場合、クレーン装置がダンプ荷
台の上方位置から外れたとき、不意にダンプ荷台が上昇
を始め非常に危険である。Furthermore, if the crane device is operated while the swing operating tool of the dump bed is held on the upward side, when the crane device is removed from the position above the dump bed, the dump bed will suddenly start to rise, which is very dangerous.
更に、クレーン装置がダンプ荷台の上方位置から外れて
いると作業者が判断したにもかかわらずダンプ荷台の揺
動操作具を操作してもダンプ荷台が上昇しない場合、こ
の原因が、実際にはクレーン装置がダンプ荷台の上方位
置から外れていなかったことによるのか、油圧装置の故
障によるものか判別する為には、再度クレーン装置を操
作しなければならないし、作業者は操作の都度クレーン
装置とダンプ荷台との相対位置関係を確認しなければな
らないという問題がある。Furthermore, if the operator determines that the crane device is out of position above the dump bed, but the dump bed does not rise even after operating the dump bed swinging device, the cause may actually be In order to determine whether the problem is due to the crane device remaining above the dump bed or a malfunction in the hydraulic system, the operator must operate the crane device again, and the operator has to operate the crane device again each time. There is a problem in that the relative positional relationship with the dump bed must be confirmed.
本考案は、上記したような油圧回路の操作とクレーン装
置の回動とを連動させることにより生じる問題を解決す
ることを目的とし、この目的を遠戚する為の本考案の特
徴とする構成は、官記したクレーン付ダンプ車において
、前記牽制機構を、前記ダンプ荷台に対しる揺動操作具
の上昇操作側への操作を不能にするストッパーと、前記
クレーン装置の回動に伴って前記ストッパーを揺動操作
具に対する牽制位置と牽制解除位置とに位置変更させる
機械式連動機構とから構威しである点にあり、かかる構
威から次の作用効果を奏する。The purpose of the present invention is to solve the problems caused by linking the operation of the hydraulic circuit and the rotation of the crane device as described above. , in a officially registered dump truck with a crane, the check mechanism includes a stopper that makes it impossible to operate the swinging operation tool toward the upward operation side with respect to the dump bed, and the stopper that prevents the swinging operation tool from moving toward the upward operation side with respect to the dump bed; The structure is based on a mechanical interlocking mechanism that changes the position of the swing operating tool between a check position and a check release position, and the following effects are obtained from this structure.
即ち、ダンプ荷台の揺動操作具による上昇操作を不能に
するストッパーとクレーン装置の回動とを連動させであ
るので、クレーン装置がダンプ荷台の上方位置にあると
きは揺動操作具を操作すること自体が不可能となって、
不必要に油圧装置が作動することはなく、クレーン装置
がダンプ荷台の上方位置から外れた状態でのみ揺動操作
具による上昇操作を行ない得るので、不意にダンプ荷台
が上昇を始めることもない。In other words, the rotation of the crane device is linked with the stopper that disables the lifting operation by the swing operating tool of the dump bed, so that when the crane device is located above the dump bed, the swing operating tool is operated. That in itself became impossible,
Since the hydraulic system does not operate unnecessarily and the lifting operation using the swing operating tool can be performed only when the crane device is removed from the position above the dump bed, the dump bed does not start to rise unexpectedly.
また、ストッパーは操作具そのものの操作を規制するも
のであるので、油圧装置に故障があれば簡単に判別でき
るだけでなく、作業者が操作の都度、クレーン装置とダ
ンプ荷台との相対位置を確認する必要もない。In addition, the stopper restricts the operation of the operating tool itself, so not only can it be easily detected if there is a malfunction in the hydraulic system, but it also allows the operator to check the relative position of the crane device and the dump bed each time the operator operates it. There's no need.
次に、本考案の実施例を図面に基いて詳述する。Next, embodiments of the present invention will be described in detail based on the drawings.
クローラ走行装置１を備えた車体２の前後方向中央部に
クレーン装置３を搭載し、このクレーン装置３の前方に
、流体圧シリンダ４によって車体前端側の横軸まわりで
駆動揺動自在なダンプ荷台５を取付けると共に、クレー
ン装置３の後方の車体部分に、運転操作部６と原動部７
を並置搭載して、一台でもってクレーン作業と搭載荷の
運搬放出作業を行なえるクレーン付ダンプ車を構威しで
ある。A crane device 3 is mounted in the longitudinal center of a vehicle body 2 equipped with a crawler traveling device 1, and in front of this crane device 3 is a dump platform that can be driven and oscillated around a horizontal axis on the front end side of the vehicle body by a hydraulic cylinder 4. At the same time, a driving operation section 6 and a driving section 7 are attached to the rear part of the crane device 3.
A dump truck equipped with a crane is equipped with two types of cranes that can be mounted side by side to perform both crane work and transport and release of loaded cargo.
前記クレーン装置３を構成すると、左右のアウトリガ−
６，８を備えた基台９に縦軸芯周りで回動自在にポスト
１０を立設すると共に、内装シリンダ１１によって伸縮
自在なブーム１２を、前記ポスト１０の先端側に横軸を
介して、かつ、シリンダ１３により起伏自在に連結し、
そして前記ポスト１０をラックとピニオンを介してシリ
ンダ１４により駆動回動自在に構威して、前記ブーム１
２とそれに対するシリンダ１３を、前記ダンプ荷台５の
上方位置における旅回範囲θと、それから外れた位置に
おける旅回範囲θにわたって有限旅回させるようにする
と共に、前記ブーム１２の先端側に人為的に伸縮固定自
在なブーム部分１２ａを設けて、その先端に垂下のフッ
ク１５に対するワイヤーの巻取装置１６を前記ポスト１
０に連設しである。When the crane device 3 is configured, the left and right outriggers
A post 10 is erected on a base 9 equipped with 6 and 8 so as to be rotatable around a vertical axis, and a boom 12 which is freely extendable and retractable by an internal cylinder 11 is attached to the tip side of the post 10 via a horizontal axis. , and are undulatingly connected by the cylinder 13,
The post 10 is driven and rotated by a cylinder 14 via a rack and pinion, and the boom 1
2 and the cylinder 13 corresponding thereto are made to travel within a travel range θ at a position above the dump bed 5 and a travel range θ at a position deviated from the travel range θ, and the tip side of the boom 12 is artificially A boom portion 12a that can be expanded and contracted is provided at the tip of the boom portion 12a, and a wire winding device 16 for a hook 15 hanging down is attached to the tip of the boom portion 12a.
It is set consecutively to 0.
上記構成のクレーン付ダンプ車において、前記クレーン
装置３がダンプ荷台５の上方位置の旋回範囲θに在る時
に、そのダンプ荷台５の上昇操作を不能にする牽制機構
１７を設けある。In the crane-equipped dump vehicle having the above configuration, a restraining mechanism 17 is provided that disables the lifting operation of the dump platform 5 when the crane device 3 is in the turning range θ above the dump platform 5.
その牽制機構１７を構成するに、第２図及び第３図イ９
口に示すように、前記クレーン装置３のブーム１２に対
する旋回と起伏と伸縮及びアウトリガ−８，８に対する
伸縮の各操作具１８・・・・・・に対してその一側に、
前記ダンプ荷台５の操作具１９を横軸芯周りで前後揺動
自在に設けると共に、その揺動操作具１９の揺動操作を
不能にする部分ａと許容する部分す、 ｂを備えたスト
ッパー２０を、操作具１９の揺動軸芯方向にのみ摺動自
在に、かつ、操作具１９に作用させて設け、車体横方向
にラック２１を設けると共に、それに咬合するピニオン
２２を縦軸まわりで回転自在に取付け、そして前記ポス
ト１０と前記ピニオン２２の夫々にスプロケットホイー
ル２３．２３を設けると共に、それに回動チェーン２４
を巻回し、もって機械式連動機構を構威し、前記ラック
２１に前記ストッパー２０を一体連設することにより、
前記ポスト１０の回動を基にしてダンプ荷台５に対する
クレーン装置３の相対姿勢を機械的に検出させて、前記
クレーン装置３がダンプ荷台上方位置の旋回範囲θ内に
在る事の検出に連動して、前記操作具１９によるダンプ
荷台５の上昇操作を行なう事ができないように、前記ス
トッパ２０が可逆的に作用状態に切換わるようにしであ
る。To configure the check mechanism 17, FIG. 2 and FIG.
As shown in the figure, on one side of each operation tool 18 for turning, raising and lowering, extending and contracting the boom 12 of the crane device 3, and extending and contracting the outriggers 8, 8,
The operating tool 19 of the dump loading platform 5 is provided so as to be swingable back and forth around the horizontal axis, and the stopper 20 is provided with a portion a that disables the swinging operation of the swinging operating tool 19, and portions s and b that allow the swinging operation of the swinging operating tool 19. is provided to be slidable only in the direction of the swing axis of the operating tool 19 and act on the operating tool 19, and a rack 21 is provided in the lateral direction of the vehicle body, and a pinion 22 meshing with the rack is rotated around the vertical axis. The post 10 and the pinion 22 are each provided with a sprocket wheel 23, 23, and a rotation chain 24 is attached thereto.
By winding the stopper 20, thereby creating a mechanical interlocking mechanism, and integrally connecting the stopper 20 to the rack 21,
The relative posture of the crane device 3 with respect to the dump bed 5 is mechanically detected based on the rotation of the post 10, and this is linked to the detection that the crane device 3 is within the swing range θ above the dump bed. Then, the stopper 20 is reversibly switched to the operating state so that the operation tool 19 cannot be used to raise the dump platform 5.
図面は本考案に係るクレーン付ダンプ車の実施例を示し
、第１図は全体側面図、第２図は全体平面図、第３図イ
９口は牽制機構の作用状態を示す説明図である。
３・・・・・・クレーン装置、５・・・・・・ダンプ荷
台、１７・・・・・・牽制機構、１９・・・・・・揺動
操作具、２０・・・・・・ストッパー。The drawings show an embodiment of a dump truck with a crane according to the present invention, and FIG. 1 is an overall side view, FIG. 2 is an overall plan view, and FIG. . 3... Crane device, 5... Dump loading platform, 17... Check mechanism, 19... Rocking operation tool, 20... Stopper .
Claims (1)
れから外れた位置とに位置変更自在なりレーン装置３を
備え、かつ、前記クレーン装置３が前記ダンプ荷台５の
上方位置に在る事の検出に基いて前記ダンプ荷台５の上
昇操作を不能にする牽制機構１７を設けであるクレーン
付ダンプ車において、前記牽制機構１７を、前記ダンプ
荷台５に対する揺動操作具１９の上昇操作側への操作を
不能にするストッパー２０と、前記クレーン装置３の回
動に伴って前記ストッパー２０を揺動操作具１９に対す
る牽制位置と牽制解除位置とに位置変更させる機械式連
動機構とから構成しであることを特徴とするクレーン付
ダンプ車。The crane device 3 is provided with a lane device 3 that can freely change its position between a position above the dump bed 5 and a position away from it by rotation around the vertical axis, and the crane device 3 is located at a position above the dump bed 5. In a dump truck with a crane, which is provided with a check mechanism 17 that disables the lifting operation of the dump bed 5 based on the detection of and a mechanical interlocking mechanism that changes the position of the stopper 20 between a restraining position and a restraining release position with respect to the swing operating tool 19 as the crane device 3 rotates. A dump truck with a crane that is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16662879U JPS6031941Y2 (en) | 1979-11-29 | 1979-11-29 | Dump truck with crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16662879U JPS6031941Y2 (en) | 1979-11-29 | 1979-11-29 | Dump truck with crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5683438U JPS5683438U (en) | 1981-07-06 |
| JPS6031941Y2 true JPS6031941Y2 (en) | 1985-09-25 |
Family
ID=29677507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16662879U Expired JPS6031941Y2 (en) | 1979-11-29 | 1979-11-29 | Dump truck with crane |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6031941Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0348891Y2 (en) * | 1985-01-16 | 1991-10-18 |
-
1979
- 1979-11-29 JP JP16662879U patent/JPS6031941Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5683438U (en) | 1981-07-06 |
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