JPH0620798Y2 - Safety equipment for aerial work vehicles - Google Patents
Safety equipment for aerial work vehiclesInfo
- Publication number
- JPH0620798Y2 JPH0620798Y2 JP1985204594U JP20459485U JPH0620798Y2 JP H0620798 Y2 JPH0620798 Y2 JP H0620798Y2 JP 1985204594 U JP1985204594 U JP 1985204594U JP 20459485 U JP20459485 U JP 20459485U JP H0620798 Y2 JPH0620798 Y2 JP H0620798Y2
- Authority
- JP
- Japan
- Prior art keywords
- guard
- aerial work
- switch
- work vehicle
- operating device
- 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
Description
【考案の詳細な説明】 （１）産業上の利用分野 本考案はブーム等の先端に設けられた作業台上から操作
可能な操作装置を備えた高所作業車における安全装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION (1) Field of Industrial Application The present invention relates to a safety device for an aerial work vehicle that includes an operating device that can be operated from a workbench provided at the tip of a boom or the like.
（２）従来の技術 油圧作動装置を有する産業車輌において、油圧作動装置
が運転者の意図にかかわらず作動することを防止する安
全装置は、例えば実公昭６０−３０３１４号公報に記載
されているように、従来より公知である。(2) Prior Art In an industrial vehicle having a hydraulic actuator, a safety device that prevents the hydraulic actuator from operating regardless of the driver's intention is disclosed in, for example, Japanese Utility Model Publication No. 60-30314. In addition, it is conventionally known.
（３）考案が解決しようとする問題点 しかし、従来の安全装置は、原動機の停止操作や運転者
が運転席を離れることに連動してコントロールレバーを
中立位置に保持するものであったため、操作中に作業台
上のオペレータが障害物にはさまれたり、作業台が障害
物に接触して破損することを防止することはできないも
のであった。(3) Problems to be Solved by the Invention However, since the conventional safety device holds the control lever at the neutral position in conjunction with the operation of stopping the prime mover and the driver leaving the driver's seat, It was not possible to prevent the operator on the workbench from being caught in an obstacle or the workbench from coming into contact with the obstacle and being damaged.
（４）問題点を解決するための手段 本考案は、上記の問題点を解決するために、作業台上か
ら操作可能な操作装置を備えた高所作業車の安全装置に
おいて、この操作装置の両側面で揺動可能に枢支され、
操作装置の上方に張り出した枠状のガードと、このガー
ドの枢支部に取付けられガードと一体に揺動するカム
と、このカムの揺動により作動されるスイッチと、この
スイッチからの信号により高所作業車の作動を停止する
作動停止装置とを備え、前記ガードは、バネにより垂直
状態に保持され、所定の力が作用したときに前方および
後方に揺動して、前記スイッチを作動させるものであ
る。(4) Means for Solving the Problems In order to solve the above problems, the present invention provides a safety device for an aerial work vehicle that includes an operating device that can be operated from above the workbench. It is swingably supported on both sides,
A frame-shaped guard that extends above the operating device, a cam that is attached to the pivotal support of the guard and swings together with the guard, a switch that is activated by the swing of the cam, and a signal from this switch An operation stopping device for stopping the operation of the work vehicle, wherein the guard is held in a vertical state by a spring and swings forward and backward when a predetermined force is applied to operate the switch. Is.
（５）作用 上記の構成により、ガードに所定の力が作用していない
状態においては作動停止装置は働かず、操作装置を操作
することにより高所作業車を作動させることができる
が、障害物がガードあるいは操作中のオペレータに接触
し、障害物あるいはオペレータによりガードに所定の力
が作用すると、ガードがバネの付勢力に抗して前方およ
び後方に揺動し、作動停止装置が働いて高所作業車の作
動が停止する。(5) Operation With the above configuration, the operation stopping device does not operate when a predetermined force is not applied to the guard, and the aerial work vehicle can be operated by operating the operating device. Contact with the guard or the operator who is operating, and when a certain force is applied to the guard by an obstacle or the operator, the guard swings forward and backward against the biasing force of the spring, and the deactivation device operates to raise the height. The work vehicle stops working.
（実施例） 以下、図面により本考案の実施例について説明する。(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.
第２図に示すように、高所作業車は、走行可能な台車
（１）上にターンテーブル（２）が旋回自在に設けら
れ、ターンテーブル（２）には伸縮ブーム（３）の基部
が枢支されており、伸縮ブーム（３）は起伏シリンダ
（４）の伸縮により起伏するとともに、内蔵された伸縮
装置（図示せず）により伸縮する。伸縮ブーム（３）の
先端には作業台（５）が平衡保持され、作業台（５）に
は台車（１）の走行と操舵、ターンテーブル（２）の旋
回及び伸縮ブーム（３）の起伏と伸縮等の操作を行う操
作装置（６）が備えられ、操作装置（６）の両側面に
は、第２図および第３図に示すように、操作装置（６）
に設けられた操作レバーよりもオペレータから見て手前
側に枠状のガード（７）が揺動自在に枢支され、ガード
（７）は操作装置（６）の上方に張り出している。As shown in FIG. 2, in an aerial work vehicle, a turntable (2) is rotatably provided on a movable carriage (1), and the turntable (2) has a base portion of a telescopic boom (3). It is pivotally supported, and the telescopic boom (3) is hoisted by the telescopic movement of the hoisting cylinder (4) and is telescopically moved by a built-in telescopic device (not shown). The workbench (5) is equilibrated at the tip of the telescopic boom (3), and the workbench (5) travels and steers the trolley (1), turns the turntable (2), and raises and lowers the telescopic boom (3). And an operating device (6) for performing operations such as expansion and contraction, and the operating device (6) is provided on both side surfaces of the operating device (6) as shown in FIGS. 2 and 3.
A frame-shaped guard (7) is swingably pivoted on the front side of the operating lever provided on the operator's side, and the guard (7) projects above the operating device (6).
第１図に示すように、揺動可能に枢支されたガード
（７）はバネ（８，８）により垂直状態に保持され、ガ
ード（７）は所定の力が作用すると前方および後方へ揺
動する。ガード（７）の枢支部にはガード（７）と一体
に揺動するカム（９）とこのカム（９）の揺動により作
動されるスイッチ（１０）が取付けられ、このカム
（９）とスイッチ（１０）によりガード（７）の揺動を
検出する検出器が構成されている。高所作業車の原動機
により駆動される油圧ポンプ（１２）とアクチュエータ
（４，１７）の操作弁（１４，１５）を連結する管路に
は電磁切換え弁（１３）が挿入され、電磁切換え弁（１
３）は、通常は油圧ポンプ（１２）から吐出された圧油
を操作弁（１４，１５）に供給し、切換えにより圧油を
タンク（１１）に直接戻して操作弁（１４，１５）への
圧油の供給を遮断する作動停止装置を構成している。カ
ム（１９）により作動されるスイッチ（１０）は電源
（１６）及び電磁切換え弁（１３）のソレノイドに連結
され、スイッチ（１０）の作動により電磁切換え弁（１
３）は切換わる。As shown in FIG. 1, the pivotally supported guard (7) is held vertically by springs (8, 8), and the guard (7) swings forward and backward when a predetermined force is applied. Move. A cam (9) swinging integrally with the guard (7) and a switch (10) actuated by the swing of the cam (9) are attached to the pivotal support portion of the guard (7). The switch (10) constitutes a detector for detecting the swing of the guard (7). An electromagnetic switching valve (13) is inserted in a pipe line connecting a hydraulic pump (12) driven by a prime mover of an aerial work vehicle and operation valves (14, 15) of actuators (4, 17). (1
3) normally supplies the pressure oil discharged from the hydraulic pump (12) to the operation valve (14, 15) and directly returns the pressure oil to the tank (11) by switching to the operation valve (14, 15). It constitutes an operation stop device that shuts off the supply of the pressure oil. The switch (10) operated by the cam (19) is connected to the power supply (16) and the solenoid of the electromagnetic switching valve (13), and the solenoid (1) is operated by the operation of the switch (10).
3) is switched.
上記の構成により、通常は、第２図に示すように、オペ
レータ（Ａ）はガード（７）に触れずに操作装置（６）
を操作するため、ガード（７）はバネ（８，８）の付勢
力により垂直位置に保持され、スイッチ（１０）は作動
しないので、電磁切換え弁（１３）は（ｂ）位置に保持
され、油圧ポンプ（１２）から吐出される圧油は操作弁
（１４，１５，…）に供給され、操作装置（６）を操作
することにより高所作業車は作動する。With the above configuration, normally, as shown in FIG. 2, the operator (A) does not touch the guard (7) and the operating device (6)
In order to operate, the guard (7) is held in the vertical position by the biasing force of the springs (8, 8) and the switch (10) does not operate, so the electromagnetic switching valve (13) is held in the (b) position, The pressure oil discharged from the hydraulic pump (12) is supplied to the operation valves (14, 15, ...) And the aerial work vehicle operates by operating the operation device (6).
高所作業車の操作中にオペレータ（Ａ）の背後から梁等
の障害物がオペレータ（Ａ）に接触し、オペレータ
（Ａ）が操作装置（６）側に押されると、ガード（７）
がオペレータ（Ａ）と接触して揺動され、スイッチ（１
０）が作動して電磁切換え弁（１３）が（ｃ）位置に切
換わって操作弁（１４，１５，…）への圧油の供給が遮
断され、高所作業車の全ての作動が停止し、オペレータ
（Ａ）が障害物と作業台（５）の外枠の間にはさまれる
ことを防止する。また、障害物が直接ガード（７）と接
触したときにおいてもガード（７）が揺動されるので、
上記と同様に高所作業車の作動が停止する。When an obstacle such as a beam comes into contact with the operator (A) from behind the operator (A) during operation of an aerial work vehicle, and the operator (A) is pushed toward the operation device (6) side, the guard (7)
Comes into contact with the operator (A) and is swung, and the switch (1
0) is activated and the electromagnetic switching valve (13) is switched to the (c) position, the supply of pressure oil to the operation valves (14, 15, ...) Is cut off, and all operations of the aerial work vehicle are stopped. However, the operator (A) is prevented from being caught between the obstacle and the outer frame of the workbench (5). Moreover, since the guard (7) is swung even when the obstacle directly contacts the guard (7),
The operation of the aerial work vehicle is stopped in the same manner as above.
なお、ガード（７）は、第４図に示すように、操作装置
（６）に設けられた操作レバーよりもオペレータから見
て向こう側に枢支することもでき、また、スイッチ（１
０）と電磁切換え弁（１３）のソレノイドとを連結する
回路に自己保持回路を設けて一度スイッチ（１０）が作
動したときには別に設けた解除スイッチを操作しないと
高所作業車が作動しないようにすることも容易に実施可
能である。As shown in FIG. 4, the guard (7) can be pivotally supported on the other side of the operating lever provided on the operating device (6) when viewed from the operator.
0) and the solenoid of the solenoid operated directional control valve (13) are provided with a self-holding circuit, and when the switch (10) is activated once, the aerial work vehicle will not operate unless a separately provided release switch is operated. It can be easily implemented.
（７）考案の効果 以上のように、本考案によれば、簡単な構成により、操
作中に作業台上のオペレータが障害物によってはさまれ
ることが防止されるとともに、作業台が障害物に接触す
ることによる高所作業車あるいは障害物の破損も防止さ
れ、また、ガードを押すか引くことにより高所作業車の
作動を停止させることができるため緊急停止装置として
も使用することができる高所作業車の安全装置が提供さ
れ、本考案は高所作業車の安全性向上に多大な効果を有
する。(7) Effects of the Invention As described above, according to the present invention, the operator on the workbench can be prevented from being caught by an obstacle during operation and the workbench can be protected by the simple structure. Damage to aerial work vehicles or obstacles due to contact is also prevented, and since the operation of aerial work vehicles can be stopped by pushing or pulling the guard, it can also be used as an emergency stop device. An aerial work vehicle safety device is provided, and the present invention has a great effect on improving the safety of aerial work vehicles.
図面は本考案の実施例を示し、第１図は安全装置の構成
を示す説明図、第２図は高所作業車の作業状態を示す側
面図、第３図は操作装置部分の正面図、第４図は他の実
施例を示す作業台部分の側面図である。 ５…作業台、６…操作装置、７…ガード、８…バネ、９
…カム、１０…スイッチ、１３…電磁切換え弁。1 shows an embodiment of the present invention, FIG. 1 is an explanatory view showing the structure of a safety device, FIG. 2 is a side view showing a working state of an aerial work vehicle, and FIG. 3 is a front view of an operating device portion. FIG. 4 is a side view of a workbench part showing another embodiment. 5 ... Workbench, 6 ... Operating device, 7 ... Guard, 8 ... Spring, 9
... Cam, 10 ... Switch, 13 ... Electromagnetic switching valve.
Claims (1)
高所作業車の安全装置において、この操作装置の両側面
で揺動可能に枢支され、操作装置の上方に張り出した枠
状のガードと、このガードの枢支部に取付けられガード
と一体に揺動するカムと、このカムの揺動により作動さ
れるスイッチと、このスイッチからの信号により高所作
業車の作動を停止する作動停止装置とを備え、前記ガー
ドは、バネにより垂直状態に保持され、所定の力が作用
したときに前方および後方に揺動して、前記スイッチを
作動させることを特徴とする高所作業車の安全装置。1. A safety device for an aerial work vehicle equipped with an operating device operable from above a workbench. A frame-shaped device pivotably supported on both side surfaces of the operating device and projecting above the operating device. Guard, a cam that is attached to the pivotal support of the guard and swings together with the guard, a switch that is actuated by the swing of this cam, and an operation that stops the operation of an aerial work vehicle by a signal from this switch. A stop device, the guard is held in a vertical state by a spring, and swings forward and backward when a predetermined force is applied to actuate the switch. Safety device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985204594U JPH0620798Y2 (en) | 1985-12-27 | 1985-12-27 | Safety equipment for aerial work vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985204594U JPH0620798Y2 (en) | 1985-12-27 | 1985-12-27 | Safety equipment for aerial work vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62108399U JPS62108399U (en) | 1987-07-10 |
| JPH0620798Y2 true JPH0620798Y2 (en) | 1994-06-01 |
Family
ID=31170594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985204594U Expired - Lifetime JPH0620798Y2 (en) | 1985-12-27 | 1985-12-27 | Safety equipment for aerial work vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0620798Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218878B (en) * | 2017-07-01 | 2023-04-07 | 合肥永升机械有限公司 | Detection frock that high altitude construction car center pivot was opened shelves |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62153098A (en) * | 1985-12-24 | 1987-07-08 | 株式会社ジャパニック | Safety mechanism for height service car |
-
1985
- 1985-12-27 JP JP1985204594U patent/JPH0620798Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62108399U (en) | 1987-07-10 |
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