JPH0625514Y2 - Bucket safety device for aerial work vehicles - Google Patents
Bucket safety device for aerial work vehiclesInfo
- Publication number
- JPH0625514Y2 JPH0625514Y2 JP1135488U JP1135488U JPH0625514Y2 JP H0625514 Y2 JPH0625514 Y2 JP H0625514Y2 JP 1135488 U JP1135488 U JP 1135488U JP 1135488 U JP1135488 U JP 1135488U JP H0625514 Y2 JPH0625514 Y2 JP H0625514Y2
- Authority
- JP
- Japan
- Prior art keywords
- safety device
- bucket
- aerial work
- work vehicle
- boom
- 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 - Lifetime
Links
Landscapes
- Forklifts And Lifting Vehicles (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、例えばブームの先端のバケットのブーム側部
外方に突出して装備した安全装置の操作レバーを操作方
向を改良した高所作業車に於けるバケット部の安全装置
に関するものである。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an aerial work vehicle in which, for example, the operation lever of a safety device provided so as to project outside the boom side portion of the bucket at the tip of the boom has an improved operation direction. The present invention relates to a safety device for the bucket part in the above.
第2図(a)、(b)に示した従来の高所作業車の安全装置、
例えば(特開昭62-153098号に開示されたものは、バケ
ット10に搭乗しているオペレータが何らかの危険を察知
した場合、高所作業車11の走行等を緊急に停止して、そ
の危険な状況を直ちに回避するために設けられたもので
あるが、当該高所作業車11に装備されている安全装置12
の操作レバー12aは第2図(b)にその要部を示した如く、
バケット10の一側外周部に突出して装備した安全装置12
よりバケット10の内部にその操作部(この操作部はタッ
チ部分を広くするため左右に長いバーで構成されてい
る)12bを臨ませて設けており、該操作部12bを同図に示
すレバー桿に挿通したスプリング13に抗して矢印A方
向、即ち略水平に押し込むことによって前記安全装置12
を作動させて高所作業車11の走行等を緊急に停止すべく
構成している。The safety device for a conventional aerial work vehicle shown in FIGS. 2 (a) and 2 (b),
For example (the one disclosed in Japanese Patent Laid-Open No. 62-153098, when an operator on the bucket 10 detects some danger, the traveling of the aerial work vehicle 11 is stopped urgently, and Although it is provided to avoid the situation immediately, the safety device 12 equipped on the aerial work vehicle 11 concerned.
The operating lever 12a of is, as shown in FIG.
Safety device 12 protruding from the outer periphery of one side of the bucket 10
Further, the operation portion (this operation portion is composed of a long bar to the left and right to make the touch portion wider) 12b is provided inside the bucket 10 so as to face the operation portion 12b. The safety device 12 is pushed by pushing the spring 13 in the direction of arrow A, that is, substantially horizontally against the spring 13 inserted in the safety device 12.
Is operated to stop the traveling of the aerial work vehicle 11 in an emergency.
従って、上記の構成による安全装置12の操作レバー12a
はバケット10内に搭乗しているオペレータが何らかの障
害物に押されて斜め上方より倒れ込んだりする時は、そ
の障害物と操作レバー12a間に挟まれる恐れがある。殊
に上記の構造を有する操作レバー12aのスライド幅はレ
バー桿にスプリング13を介在する構成を採用しているた
め非常に僅かなものとなる。従って高所作業車11が走行
(通常走行速度は時速約3〜4km)している場合高所作
業車11が完全に停止するまでに若干のタイムラグが生じ
る。そのため上記の様な操作レバー12aのスライド幅で
は高所作業車11が完全に停止する迄にオペレータは障害
物と操作レバー12a間に確実に挟まれると言った危険な
状況下に置かれる等の問題があった。Therefore, the operating lever 12a of the safety device 12 having the above configuration
When the operator riding in the bucket 10 is pushed by some obstacle and falls down from diagonally above, there is a possibility that the operator is caught between the obstacle and the operation lever 12a. In particular, the sliding width of the operating lever 12a having the above structure is very small because the spring 13 is interposed in the lever rod. Therefore, when the aerial work vehicle 11 is traveling (normal traveling speed is about 3 to 4 km / h), there is a slight time lag until the aerial work vehicle 11 is completely stopped. Therefore, with the sliding width of the operation lever 12a as described above, the operator is placed in a dangerous situation such that the operator is surely caught between the obstacle and the operation lever 12a before the work platform 11 is completely stopped. There was a problem.
本考案は、上記の事情に鑑みてなされたもので、車体上
に旋回可能に装備したターンテーブルに基端を枢支し、
所定長伸縮可能で、かつ所定角度起伏可能なブームを装
備し、該ブームの先端に高所作業車の走行等の作動を緊
急に停止するための安全装置を装備したバケットを設け
た高所作業車に於いて、前記バケットのブーム側に突出
して設けた前記安全装置よりバケット内に臨ませる安全
装置の操作レバーを安全装置側を高く、バケット内に臨
ませるフリー端側を低くすると共に、前記安全装置側を
支点としてフリー端側が下方に円弧回動するように構成
する。The present invention has been made in view of the above circumstances, in which the base end is pivotally supported on a turntable that is turnably mounted on the vehicle body.
Equipped with a boom that can be expanded and contracted for a predetermined length and that can be undulated at a predetermined angle, and equipped with a bucket equipped with a safety device at the tip of the boom that is equipped with a safety device for urgently stopping the operation of the aerial work vehicle. In the vehicle, the operating lever of the safety device that faces the inside of the bucket is higher on the safety device side than the safety device that is provided on the boom side of the bucket, and lowers the free end side that faces the bucket. The free end side is circularly rotated downward with the safety device side as a fulcrum.
上記の様に高所作業車に於けるバケット部の安全装置を
構成することによって、バケットに搭乗して所定の作業
を行っているオペレーターが障害物等に押されて操作レ
バー側に倒れ込んだ場合に於いて、操作レバーを下方に
回動せしめてバケットフェンスと障害物との間に十分な
間隙を生ぜしめる様に成し、以て前記障害物と操作レバ
ーによってバケット内で所定の作業をするオペレーター
等が挟まれることが無いようにして高所作業の安全性を
確保することにある。By configuring the safety device for the bucket part in the aerial work vehicle as described above, when an operator who is boarding the bucket and performing a predetermined work is pushed by an obstacle or the like and falls down to the operation lever side. In this case, the operation lever is pivoted downward so that a sufficient gap is created between the bucket fence and the obstacle, and a predetermined work is performed in the bucket by the obstacle and the operation lever. It is to ensure the safety of work in high places by preventing operators from getting caught.
以下、第1図(a)、(b)に基づいて本考案に係る高所作業
車に於けるバケット部の安全装置の一実施例を詳細に説
明する。An embodiment of a safety device for a bucket portion in an aerial work vehicle according to the present invention will be described in detail below with reference to FIGS. 1 (a) and 1 (b).
同図中1は高所作業車であり、2はターンテーブル、3
は前記ターンテーブルに基端を枢着し、起伏シリンダー
4により起伏すると共に、内蔵した伸縮シリンダー(図
では省略)により所定長伸縮するブーム、5は前記ブー
ム3の先端に装備されたバケットである。6は前記バケ
ット5のブーム3側のフェンス外側に突出して装備した
安全装置(本安全装置は前記ブーム3の起伏、旋回また
バケット5の旋回・揺動等の操作を行う上部コントロー
ラ部を構成すると共に、その他高所作業車1の走行緊急
停止等を行うコントローラ部を構成)であり、該安全装
置6の側部には回動基端を有した操作レバー7が設けら
れている。In the figure, 1 is an aerial work vehicle, 2 is a turntable, 3
Is a boom that pivotally attaches the base end to the turntable and is undulated by an undulation cylinder 4 and is extended and retracted by a built-in telescopic cylinder (not shown in the figure) for a predetermined length. . A safety device 6 is provided so as to project outside the fence of the bucket 5 on the boom 3 side (this safety device constitutes an upper controller unit for performing operations such as ups and downs of the boom 3, turning, and turning and rocking of the bucket 5). In addition, it constitutes a controller portion for carrying out an emergency stop or the like of traveling of the aerial work vehicle 1), and an operating lever 7 having a rotating base end is provided on a side portion of the safety device 6.
前記操作レバー7は同図(b)に示す如く、安全装置6の
回動基端側が高く位置し、前記バケット内に臨むフリー
端7a側が低く位置し、操作レバー7の取り付け状態が
全体的に斜めと成る様にセットされ、その回動は前記安
全装置6の基端側が支点と成りフリー端7a側が同図に
示す矢印B方向へ円弧回動するように構成される。As shown in FIG. 2B, the operation lever 7 is located at a high position on the rotation base end side of the safety device 6, and is located at a low position on the free end 7a side facing the inside of the bucket. The safety device 6 is set so as to be inclined, and its rotation is configured such that the base end side of the safety device 6 serves as a fulcrum and the free end 7a side makes an arc rotation in the direction of arrow B shown in FIG.
上記の実施例に基づいて本考案に係る高所作業車に於け
るバケット部の安全装置の作用を説明する。The operation of the safety device for the bucket portion in the aerial work vehicle according to the present invention will be described based on the above embodiment.
例えば、高所作業車1を矢印C方向へ走行操作させつつ
所定の高所作業を行っているオペレータMに矢印D方向
より梁部材X等の障害物が接近してオペレータMに当接
するような場合、前記オペレータMはその梁部材Xに後
部より押されて倒される状態になる。こうした緊急の状
況下に於いて通常オペレータMはその直前の操作に集中
しているのが実情であるから、かかる緊急状況下に於い
て、例えば高所作業車1の走行を緊急に停止すべく自己
の手前に位置する安全装置6の操作レバー7を瞬時に操
作すべく要求するのは非常に酷であるが、本考案のバケ
ット部の安全装置6の操作レバー7は同図(b)に示す如
く、安全装置6の回動基端側が高く位置し、前記バケッ
ト内に臨むフリー端7a側が低く位置すべく構成してい
るので、瞬時に前記フリー端7aを正確に把持して所定
の回動操作を行うことが出来なくてもフリー端7a側に
前記オペレータMは倒れ込む状態になるから、前記フリ
ー端7aは当該オペレータMの丁度腹部でもって、恰も
手動にて操作した如く下方に押し下げられることに成
る。従って、前記安全装置6はそうした緊急の状況下に
於いても的確に操作され、高所作業車1の走行は確実に
停止される。For example, an obstacle such as a beam member X approaches the operator M who is performing a predetermined work at a height while operating the aerial work vehicle 1 in the direction of the arrow C and comes into contact with the operator M in the direction of the arrow D. In this case, the operator M is pushed by the beam member X from the rear and is brought into a state of being tilted. In such an emergency situation, it is the actual situation that the operator M usually concentrates on the operation immediately before the emergency operation. Therefore, in such an emergency situation, for example, the traveling of the aerial work vehicle 1 should be stopped urgently. Although it is extremely demanding to instantaneously operate the operating lever 7 of the safety device 6 located in front of itself, the operating lever 7 of the safety device 6 of the bucket portion of the present invention is shown in FIG. As shown in the figure, the safety base 6 is configured such that the rotation base end side is positioned high and the free end 7a side facing the inside of the bucket is positioned low, so that the free end 7a can be accurately grasped instantaneously at a predetermined time. Since the operator M falls to the free end 7a side even if the dynamic operation cannot be performed, the free end 7a is pushed down by the abdomen of the operator M just as if manually operated. It will be. Therefore, the safety device 6 is properly operated even in such an emergency situation, and the traveling of the aerial work vehicle 1 is surely stopped.
殊に、本考案のバケット部の安全装置6の操作レバー7
の回動は円弧回動をするように構成しているから、高所
作業車1が時速約3〜4kmで走行している場合であって
完全に走行を停止するまで若干のタイムラグが生じるこ
とが有っても、操作レバー7は確実に下方に円弧回動す
るため、従来の操作レバーの様に操作レバー7が邪魔に
成って障害物との間でオペレータMを挟む様なことは皆
無と成りオペレータMの安全性を十分に確保される。In particular, the operating lever 7 of the safety device 6 for the bucket of the present invention
Since the rotation of the vehicle is configured to rotate in an arc, there is a slight time lag until the vehicle completely stops traveling even when the work vehicle 1 at high altitude is traveling at about 3 to 4 km per hour. Even if there is, the operation lever 7 surely rotates downward in an arc, so that there is no possibility that the operation lever 7 interferes with the conventional operation lever and the operator M is caught between the obstacle and the obstacle. Therefore, the safety of the operator M is sufficiently secured.
以上、詳細に説明した如く、本考案は車体上に旋回可能
に装備したターンテーブルに基端を枢支し、所定長伸縮
可能で、かつ所定角度起伏可能なブームを装備し、該ブ
ームの先端に高所作業車の走行等の作動を緊急に停止す
るための安全装置を装備したバケットを設けた高所作業
車に於いて、前記バケットのブーム側に突出して設けた
前記安全装置よりバケット内に臨ませる安全装置の操作
レバーを安全装置側を高く、バケット内に臨ませるフリ
ー端側を低くすると共に、前記安全装置側を支点として
フリー端側が下方に円弧回動するように構成したので、
バケットに搭乗して所定の作業を行っているオペレータ
ーが障害物等に押されて操作レバー側に倒れ込んだ場
合、瞬時に操作レバーを正確に把持して所定の制動操作
が不可能であっても、当該操作レバーはオペレータの腹
部等によって正確に下方に回動せしめられるから、高所
作業車の走行等を確実に停止することが出来る。殊に、
前記操作レバーは下方に対して十分に回動するように構
成しているから、走行を停止した後に於いて高所作業車
の惰性による走行が行われてもバケットフェンスと障害
物との間に十分な間隙が生じる。従って、前記障害物と
操作レバー間にオペレーター等が挟まれることは皆無と
なり、安心した高所作業を行うことが可能になる。As described above in detail, according to the present invention, a turntable mounted on a vehicle body is pivotally supported at its base end, and is equipped with a boom which can extend and retract by a predetermined length and which can rise and fall by a predetermined angle. In an aerial work vehicle provided with a bucket equipped with a safety device for urgently stopping the operation such as traveling of the aerial work vehicle, within the bucket from the safety device provided on the boom side of the bucket. Since the operating lever of the safety device facing the safety device side is high and the free end side facing the inside of the bucket is low, the free end side is configured to pivot downward with the safety device side as a fulcrum.
When an operator who is on a bucket and performs a predetermined work is pushed by an obstacle or the like and falls down to the operation lever side, even if the operation lever is instantaneously grasped accurately and the predetermined braking operation is impossible. Since the operating lever can be accurately rotated downward by the abdomen of the operator, the traveling of the work vehicle at high places can be surely stopped. In particular,
Since the operation lever is configured to rotate sufficiently downward, even after the traveling is stopped by the inertia of the work vehicle after the traveling, the space between the bucket fence and the obstacle is increased. Sufficient clearance is created. Therefore, an operator or the like is never caught between the obstacle and the operation lever, and it is possible to perform a safe work at a high place.
第1図(a)は本考案に係る高所作業車に於けるバスケッ
ト部の安全装置を装備した高所作業車の一実施例を示す
斜視図、同図(b)は同上安全装置の要部斜視図、第2図
(a)、(b)は従来の高所作業車に於けるバスケット部の安
全装置を装備した高所作業車の一実施例を示す斜視図、
同図(b)は同上安全装置の要部側面図である。 1……高所作業車、2……ターンテーブル、3……ブー
ム、4……起伏シリンダー、5……バケット、6……安
全装置、7……操作レバー、7a……フリー端。FIG. 1 (a) is a perspective view showing an embodiment of an aerial work vehicle equipped with a safety device for a basket portion of an aerial work vehicle according to the present invention, and FIG. 1 (b) is a perspective view of the same. Part perspective view, FIG. 2
(a), (b) is a perspective view showing an embodiment of an aerial work vehicle equipped with a safety device for a basket portion in a conventional aerial work vehicle,
FIG. 2B is a side view of the main part of the same safety device. 1 ... aerial work vehicle, 2 ... turntable, 3 ... boom, 4 ... hoisting cylinder, 5 ... bucket, 6 ... safety device, 7 ... operating lever, 7a ... free end.
Claims (1)
ルに基端を枢支し、所定長伸縮可能で、かつ所定角度起
伏可能なブームを装備し、該ブームの先端に高所作業車
の走行等の作動を緊急に停止するための安全装置を装備
したバケットを設けた高所作業車に於いて、前記バケッ
トのブーム側に突出して設けた前記安全装置よりバケッ
ト内に臨ませる安全装置の操作レバーを安全装置側を高
く、バケット内に臨ませるフリー端側を低くすると共
に、前記安全装置側を支点としてフリー端側が下方に円
弧回動するように構成したことを特徴とする高所作業車
に於けるバケット部の安全装置。Claim: What is claimed is: 1. A turntable mounted on a vehicle body so as to be pivotable, the base end of which is pivotally supported, and which is equipped with a boom that is extendable and retractable for a predetermined length and can be undulated by a predetermined angle. In an aerial work vehicle provided with a bucket equipped with a safety device for urgently stopping the operation of traveling, etc., of a safety device that faces the inside of the bucket from the safety device provided on the boom side of the bucket. The operation lever is high on the safety device side and low on the free end side facing the inside of the bucket, and the free end side is circularly rotated downward with the safety device side as a fulcrum. Safety device for the bucket part of a car.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1135488U JPH0625514Y2 (en) | 1988-01-31 | 1988-01-31 | Bucket safety device for aerial work vehicles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1135488U JPH0625514Y2 (en) | 1988-01-31 | 1988-01-31 | Bucket safety device for aerial work vehicles |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01119000U JPH01119000U (en) | 1989-08-11 |
JPH0625514Y2 true JPH0625514Y2 (en) | 1994-07-06 |
Family
ID=31219836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1135488U Expired - Lifetime JPH0625514Y2 (en) | 1988-01-31 | 1988-01-31 | Bucket safety device for aerial work vehicles |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0625514Y2 (en) |
-
1988
- 1988-01-31 JP JP1135488U patent/JPH0625514Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH01119000U (en) | 1989-08-11 |
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