JPH0644760Y2 - Outrigger beam telescopic stop device for work vehicles - Google Patents
Outrigger beam telescopic stop device for work vehiclesInfo
- Publication number
- JPH0644760Y2 JPH0644760Y2 JP6306389U JP6306389U JPH0644760Y2 JP H0644760 Y2 JPH0644760 Y2 JP H0644760Y2 JP 6306389 U JP6306389 U JP 6306389U JP 6306389 U JP6306389 U JP 6306389U JP H0644760 Y2 JPH0644760 Y2 JP H0644760Y2
- Authority
- JP
- Japan
- Prior art keywords
- outrigger
- outrigger beam
- stop device
- contact
- sensor
- 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
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Jib Cranes (AREA)
- 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、例えばアウトリガを装備した高所作業車等の
各アウトリガ張り出し時に於けるアウターポストと周囲
の物との接触あるいは干渉並びに伸長したアウトリガビ
ーム上に載置した物がアウトリガビーム縮小時に車体と
ジャッキの間に挟まれることが無いようにした作業車の
アウトリガビーム伸縮停止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 contact or interference between an outer post and surrounding objects and extension of an outrigger when each outrigger of an aerial work vehicle equipped with an outrigger is extended. The present invention relates to an outrigger beam expansion / contraction stop device for a work vehicle in which an object placed on a beam is prevented from being caught between a vehicle body and a jack when the outrigger beam is contracted.
現在のクレーン車を始め高所作業車等は十分な安全性を
確保しつつできる限り作業範囲を拡大するために車体の
前後左右に車体の外方に伸縮自在に装備したアウトリガ
ビームの先端にアウターポスト内にインナーポストを伸
縮自在に嵌入したジャッキを略垂直に装備したアウトリ
ガを備え、各アウトリガのアウトリガビームを伸長させ
て車体の外方に張り出し、かつ各アウトリガビームの先
端部に装備したジャッキのインナーポストを所定長さ下
降させることにより車体を水平に支持し、かつ安定に設
置しているのが実情である。In order to expand the work range as much as possible while securing sufficient safety for current crane vehicles and aerial work vehicles, etc., an outer is attached to the tip of the outrigger beam that is telescopically mounted on the front, rear, left and right of the body. Equipped with an outrigger equipped with a jack in which the inner post is elastically inserted in the post in a substantially vertical direction, the outrigger beam of each outrigger is extended to project to the outside of the vehicle body, and the jack installed at the tip of each outrigger beam The actual situation is that the inner post is lowered by a predetermined length to horizontally support the vehicle body and to stably install the vehicle body.
然るに、従来のクレーン車乃至高所作業車等に装備した
各アウトリガのアウトリガビームの伸縮駆動機能は、只
単にアウトリガビームを所定幅伸長したり格納するに当
たって張り出した分の縮小を行うと言った所謂最小限度
の機能のみを備えたものであって、ビームの伸縮駆動が
オペレータの操作の有無に関わらず自動的に停止される
ような機構の配慮が成されていなかった。そのため、例
えば狭い作業現場等に於いて各アウトリガビームの張り
出し操作を行う様な場合、各アウトリガビームの伸長量
の目測を誤ると各アウトリガビームの先端部に装備した
アウターポストを周囲の物(ブロック塀・電柱・ガイド
レール等)に接触乃至干渉させ周囲の物を破壊・損傷し
たり、アウターポスト自体を破損したり、ときには周囲
の物とアウターポスト間に作業員を挟み込んでしまう等
種々の問題を有していた。However, the extension / contraction drive function of the outrigger beam of each outrigger equipped in the conventional crane truck or aerial work vehicle, etc. is simply referred to as expanding the outrigger beam by a predetermined width or reducing it by the amount overhanging when storing. The system has only the minimum functions, and no consideration has been given to a mechanism in which the expansion / contraction drive of the beam is automatically stopped regardless of the operator's operation. For this reason, for example, when performing an overhanging operation of each outrigger beam in a narrow work site, etc., if the extension amount of each outrigger beam is erroneously measured, the outer post mounted at the tip of each outrigger beam may be attached to the surrounding object (block). Various problems such as contacting or interfering with fences, electric poles, guide rails, etc., destroying or damaging surrounding objects, damage to the outer post itself, sometimes pinching a worker between the surrounding objects and the outer post, etc. Had.
本考案は、前述した問題点に鑑みてなされたものであ
り、その目的とするところは、アウトリガを装備した高
所作業車等のアウトリガ張り出し時に於けるアウターポ
ストと周囲の物との接触あるいは干渉並びに伸長したア
ウトリガビーム上に載置した物がアウトリガビーム縮小
時に車体とジャッキの間に挟まれることが無いようにし
た作業車のアウトリガビーム伸縮停止装置を提供するこ
とにあり、そのために車体の前後左右にそれぞれ車体の
外方に伸縮自在に装備したアウトリガビームの先端に、
アウターポスト内にインナーポストを伸縮自在に嵌入し
たジャッキをそれぞれ略垂直に装備した作業車に於い
て、前記各アウトリガビームの先端に装備した前記ジャ
ッキのアウターポストに接触を検出するセンサーを取り
付けると共に、該センサーの検出信号により、前記アウ
トリガビームを伸縮駆動するビーム伸縮駆動装置の作動
を停止するように構成する。The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to bring the outer post into contact with or interfere with surrounding objects when the outrigger is overhanging in an aerial work vehicle equipped with an outrigger. Another object of the present invention is to provide an outrigger beam expansion / contraction stop device for a work vehicle, which prevents an object placed on the extended outrigger beam from being caught between the vehicle body and the jack when the outrigger beam is contracted. At the tip of the outrigger beam that is elastically mounted on the left and right sides of the car body,
In a work vehicle equipped with jacks in which the inner posts are elastically fitted in the outer posts, respectively, in a substantially vertical manner, with a sensor for detecting contact with the outer posts of the jacks provided at the tips of the respective outrigger beams, The beam expansion / contraction driving device for expanding / contracting the outrigger beam is stopped by the detection signal of the sensor.
上記のような構成を採用したので、クレーン車乃至高所
作業車等に装備した各アウトリガのアウトリガビームを
伸長させて左右に張り出し、各縮小する様な場合、アウ
ターポストに接触する物が存在すると当該物をアウター
ポストの周面適宜位置に装着した接触を検出するセンサ
ーがそれを直ちに検出し、このセンサーからの信号によ
りビーム伸縮駆動装置を停止させるから、アウターポス
トとの間に何かを挟んでしまう等の事故は皆無となり、
非常に安全性の高いアウトリガ張り出し乃至短縮作業が
できる。Since the above-mentioned configuration is adopted, when the outrigger beam of each outrigger equipped in a crane vehicle or an aerial work vehicle is extended and projected to the left and right, and when it is contracted down, there is an object that comes into contact with the outer post. A sensor that attaches the object at an appropriate position on the outer surface of the outer post detects the contact immediately and stops the beam expansion / contraction drive device by the signal from this sensor, so something is sandwiched between it and the outer post. There are no accidents such as
Outrigger overhang or shortening work with extremely high safety can be performed.
以下、第1図乃至第3図(a)、(b)に基づいて本考
案に係る作業車のアウトリガビーム伸縮停止装置の一実
施例を詳細に説明する。An embodiment of an outrigger beam expansion / contraction stop device for a working vehicle according to the present invention will be described in detail below with reference to FIGS. 1 to 3A and 3B.
同図中、1は本考案に係るアウトリガビーム伸縮停止装
置2を装備した高所作業車であり、3a…は同上高所作業
車1の両側部より所定幅張り出し可能に装備されたアウ
トリガ(本実施例ではH型アウトリガを採用)である。In the figure, reference numeral 1 is an aerial work vehicle equipped with an outrigger beam expansion / contraction stop device 2 according to the present invention, and 3a ... Same as above. In the embodiment, an H-type outrigger is adopted).
前記各アウトリガ3a…は、各アウトリガビーム3b…の先
端にアウターポスト3c…をそれぞれ装備し、かつ各アウ
ターポスト3c…に内蔵したジャッキ3d…を対地間で昇降
させて高所作業車1の水平出しを行うと共に、転倒に対
する安全性を高める構成となっている。ところで、本考
案に於ける前記各アウトリガ3a…の各アウターポスト3c
…の上部周面には接触を検出するセンサー(本実施例で
は加圧導電ゴムセンサーを採用、以下接触センサーと略
称する。第3図(a)、(b)参照)4…が装着されて
おり、各接触センサー4…で検出した所定の検出信号
は、各アウトリガ3a…の各アウトリガビーム3(b)…
を伸縮駆動するためのビーム伸縮駆動装置、即ち油圧シ
リンダー5…の作動油供給間路に配設した電磁バルブ6
…の励磁コイル6a…と電源7間に介在したリレー接点cr
を開閉するリレーCRに入力されるように構成されてい
る。Each of the outriggers 3a is equipped with an outer post 3c at the tip of each outrigger beam 3b, and a jack 3d built in each outer post 3c ... It is designed to be put out and to enhance safety against falls. By the way, in the present invention, the outer posts 3c of the respective outriggers 3a ...
Sensors for detecting contact (in the present embodiment, a pressure conductive rubber sensor is adopted, abbreviated as contact sensor hereinafter, see FIGS. 3 (a) and 3 (b)) 4 ... The predetermined detection signals detected by the contact sensors 4 ... are the outrigger beams 3 (b) ... of the outriggers 3a.
Beam expansion / contraction drive device for expanding / contracting, that is, an electromagnetic valve 6 arranged in the hydraulic oil supply passage of the hydraulic cylinders 5 ...
Relay contact cr interposed between exciting coil 6a of ... and power supply 7
It is configured to be input to the relay CR that opens and closes.
以下、上記の構成に基づいて本考案に係る作業車のアウ
トリガビーム伸縮停止装置の作用を説明する。Hereinafter, the operation of the outrigger beam expansion / contraction stop device for a working vehicle according to the present invention will be described based on the above configuration.
即ち、本考案に係る作業車のアウトリガビーム伸縮停止
装置2は高所作業車1の両側部より所定幅張り出し可能
に装備された各アウトリガ3a…の各アウトリガビーム3b
…の先端に取り付けられた各アウターポスト3c…の上部
周面にそれぞれ接触センサー4…を装着し、各接触セン
サー4…で検出した所定の検出信号を各アウトリガ3a…
の各アウトリガビーム3b…を伸縮駆動する油圧シリンダ
ー5…の作動油供給間路に配設した電磁バルブ6…の励
磁コイル6a…と電源7間に介在したリレーCRに入力する
ように構成したので、例えば第1図及び第3図(b)に
示す如く左側の前後アウトリガビーム3b、3b間に足場用
の板材Wを架け渡し所定の作業を終了した後、前記アウ
トリガビーム3b、3bを格納、即ち短縮するような場合、
上記足場用の板材Wが載置されていることを忘れて両ア
ウトリガビーム3b、3bの短縮がなされても、該足場用の
板材Wの存在は前記接触センサー4、4が接触すること
によって確認、つまり両接触センサー4、4が足場用の
板材Wに接触すると両接触センサー4、4がONとなり、
リレーCRが励磁してリレー接点crをOFFとするから、該
リレー接点crを介して電磁バルブ6、6の励磁コイル6
a、6aに流れていた所定の電流は遮断される。従って、
電磁バルブ6、6がb位置に切り換わるので前記アウト
リガビーム3b、3bの短縮を行っている油圧シリンダー
5、5に対する作動油の供給は遮断され、両アウトリガ
ビーム3b、3bの短縮動は停止する。即ち、前記足場用の
板材Wは両アウトリガビーム3b、3bと車体間に挟まれる
ことなく撤去することができるから、両アウトリガビー
ム3b、3b乃至足場用の板材Wの損傷は未然に回避され
る。That is, the outrigger beam expansion / contraction stop device 2 for a work vehicle according to the present invention is equipped with each outrigger beam 3b of each outrigger 3a ...
Contact sensors 4 are attached to the upper peripheral surfaces of the outer posts 3c attached to the tips of the contact posts 4, and the predetermined detection signals detected by the contact sensors 4 are sent to the outriggers 3a.
The outrigger beams 3b of ... are configured to be input to the relay CR interposed between the exciting coil 6a of the electromagnetic valve 6 disposed in the hydraulic oil supply path of the hydraulic cylinder 5 that drives the hydraulic cylinder 5 ... For example, as shown in FIGS. 1 and 3 (b), after the scaffolding plate W is laid between the front and rear outrigger beams 3b, 3b on the left side and the predetermined work is completed, the outrigger beams 3b, 3b are stored. That is, when shortening,
Even if both outrigger beams 3b and 3b are shortened by forgetting that the scaffold plate W is placed, the existence of the scaffold plate W is confirmed by the contact sensors 4 and 4 contacting each other. That is, when both contact sensors 4, 4 come into contact with the scaffold plate W, both contact sensors 4, 4 are turned on,
Since the relay CR excites to turn off the relay contact cr, the exciting coil 6 of the electromagnetic valves 6, 6 is connected via the relay contact cr.
The predetermined current flowing in a and 6a is cut off. Therefore,
Since the electromagnetic valves 6 and 6 are switched to the b position, the supply of hydraulic oil to the hydraulic cylinders 5 and 5 that is shortening the outrigger beams 3b and 3b is cut off, and the shortening movement of both outrigger beams 3b and 3b is stopped. . That is, since the scaffold plate W can be removed without being sandwiched between the outrigger beams 3b and 3b and the vehicle body, damage to the outrigger beams 3b and 3b and the scaffold plate W can be avoided in advance. .
又、同様に前記両アウトリガビーム3b、3bの伸長がなさ
れている場合であって、かつ両アウトリガビーム3b、3b
の前方に干渉物Xが存在する様な場合でも、前記接触セ
ンサー4、4が当該干渉物Xを検出してリレーCRを励磁
してリレー接点crをOFFとするから、該リレー接点crを
介して電磁バルブ6、6の励磁コイル6a、6aに流れてい
た所定の電流は遮断される。従って電磁バルブ6、6が
b位置に切り換わるので前記アウトリガビーム3b、3bの
伸長を行っている油圧シリンダー5、5に対する作動油
の供給は遮断され、両アウトリガビーム3b、3bの伸長動
は停止されるから、前記干渉物Xに対する両アウトリガ
ビーム3b、3bの不要な衝突は未然に回避される。Similarly, when the both outrigger beams 3b, 3b are expanded, and the both outrigger beams 3b, 3b are
Even if there is an interfering object X in front of, the contact sensors 4 and 4 detect the interfering object X and excite the relay CR to turn off the relay contact cr. The predetermined current flowing in the exciting coils 6a, 6a of the electromagnetic valves 6, 6 is cut off. Therefore, since the electromagnetic valves 6 and 6 are switched to the b position, the supply of hydraulic oil to the hydraulic cylinders 5 and 5 that are extending the outrigger beams 3b and 3b is cut off, and the extension movements of both outrigger beams 3b and 3b are stopped. Therefore, unnecessary collision of the outrigger beams 3b, 3b with the interference X is avoided in advance.
尚、上記の実施例では接触を検出するセンサーとして接
触センサー4を採用して説明したが、その他同様の機能
乃至作動を行うものであるならば同様の効果を得ること
が可能であるから上記の実施例のものに限定するもので
はない。Although the contact sensor 4 is adopted as the sensor for detecting the contact in the above embodiment, the same effect can be obtained as long as it has the same function or operation. It is not limited to the examples.
また、上記の実施例では、両アウトリガビーム3b、3b間
に足場用の板材Wが挟まれる場合で説明したが、例えば
片方(一個の)アウトリガビーム3b間に斜めに差し渡し
た状態に足場用板材W等が挟まる場合も同様に検出可能
であることは勿論である。Further, in the above embodiment, the case where the scaffolding plate W is sandwiched between the both outrigger beams 3b, 3b has been described, but for example, the scaffolding plate material is slantedly inserted between one (one) outrigger beams 3b. Needless to say, the case where W or the like is sandwiched can be detected similarly.
本考案は、以上詳細に説明した如く、車体の前後左右に
それぞれ車体の外方に伸縮自在に装備したアウトリガビ
ームの先端に、アウターポスト内にインナーポストを伸
縮自在に嵌入したジャッキをそれぞれ略垂直に装備した
作業車に於いて、前記各アウトリガビームの先端に装備
した前記ジャッキのアウターポストに接触を検出するセ
ンサーを取り付けると共に、該センサーの検出信号によ
り、前記アウトリガビームを伸縮駆動するビーム伸縮駆
動装置の作動を停止するように構成したので、クレーン
車乃至高所作業車等に装備した各アウトリガのアウトリ
ガビームを左右に張り出し、又短縮する様な場合、アウ
ターポストに接触する物が存在すると、当該介在物をア
ウターポストの周面適宜位置に装着した接触を検出する
センサーがそれを直ちに検出して検出信号によりビーム
伸縮駆動装置を停止するから、アウターポストとの間に
何かが挟まれて破損・損傷する等の事故は皆無となり、
非常に安全性の高いアウトリガ張り出し乃至短縮作業が
できる等種々の優れた効果を有する。As described in detail above, the present invention is such that a jack having an inner post elastically fitted inside an outer post is substantially vertically attached to the tip of an outrigger beam that is elastically mounted on the front, rear, left, and right sides of the vehicle. In the work vehicle equipped with the above, a sensor for detecting contact is attached to the outer post of the jack equipped at the tip of each of the outrigger beams, and a beam expansion / contraction drive for expanding / contracting the outrigger beam by the detection signal of the sensor. Since it is configured to stop the operation of the device, when the outrigger beam of each outrigger equipped on a crane vehicle or aerial work vehicle is projected left and right, or shortened, if there is an object that contacts the outer post, A sensor that detects the contact by mounting the inclusion at an appropriate position on the outer surface of the outer post Since stopping the beam expansion drive by detecting and detection signal to the Chi, accidents such as that something is broken or damaged sandwiched between the outer post becomes nil,
It has various excellent effects such as extremely safe outrigger overhang and shortening work.
第1図は本考案に係るアウトリガビーム伸縮停止装置を
装備した作業車の一例を示す斜視図、第2図は同上作業
車に装備したアウトリガビーム伸縮停止装置の概略回路
図、第3図(a)、(b)は同上アウトリガビーム伸縮
停止装置の作動状態説明図である。 1…高所作業車、2…アウトリガビーム伸縮停止装置、
3a…アウトリガ、3b…アウトリガビーム、3c…アウター
ポスト、3d…ジャッキ、4…接触センサー、5…油圧シ
リンダー、6…電磁バルブ、6a…励磁コイル、7…電
源、CR…リレー、cr…リレー接点、W…足場用の板材、
X…干渉物。FIG. 1 is a perspective view showing an example of a work vehicle equipped with an outrigger beam expansion / contraction stop device according to the present invention, FIG. 2 is a schematic circuit diagram of the outrigger beam expansion / contraction stop device equipped in the same work vehicle, and FIG. ), (B) are the same operation state explanatory diagrams of the outrigger beam expansion / contraction stop device. 1 ... Aerial work vehicle, 2 ... Outrigger beam expansion / contraction stop device,
3a ... Outrigger, 3b ... Outrigger beam, 3c ... Outer post, 3d ... Jack, 4 ... Contact sensor, 5 ... Hydraulic cylinder, 6 ... Electromagnetic valve, 6a ... Excitation coil, 7 ... Power supply, CR ... Relay, cr ... Relay contact , W ... Plate material for scaffolding,
X ... Interfering object.
Claims (1)
縮自在に装備したアウトリガビームの先端に、アウター
ポスト内にインナーポストを伸縮自在に嵌入したジャッ
キをそれぞれ略垂直に装備した作業車に於いて、前記各
アウトリガビームの先端に装備した前記ジャッキのアウ
ターポストに接触を検出するセンサーを取り付けると共
に、該センサーの検出信号により、前記アウトリガビー
ムを伸縮駆動するビーム伸縮駆動装置の作動を停止する
ようにしたことを特徴とする作業車のアウトリガビーム
伸縮停止装置。1. A work vehicle in which jacks each having an inner post elastically fitted in an outer post are installed substantially vertically at the tip of an outrigger beam which is elastically mounted on the front, rear, left and right sides of the vehicle, respectively, outside the car body. At this time, a sensor for detecting contact is attached to the outer post of the jack equipped at the tip of each outrigger beam, and the operation of the beam expansion / contraction drive device for expanding / contracting the outrigger beam is stopped by the detection signal of the sensor. An outrigger beam expansion / contraction stop device for a work vehicle characterized by the above.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6306389U JPH0644760Y2 (en) | 1989-05-31 | 1989-05-31 | Outrigger beam telescopic stop device for work vehicles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6306389U JPH0644760Y2 (en) | 1989-05-31 | 1989-05-31 | Outrigger beam telescopic stop device for work vehicles |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH032866U JPH032866U (en) | 1991-01-11 |
JPH0644760Y2 true JPH0644760Y2 (en) | 1994-11-16 |
Family
ID=31592782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6306389U Expired - Lifetime JPH0644760Y2 (en) | 1989-05-31 | 1989-05-31 | Outrigger beam telescopic stop device for work vehicles |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0644760Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100625092B1 (en) * | 2005-02-28 | 2006-09-20 | 주식회사 한우티엔씨 | Automatic safety extent designating system for ladder vehicle |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5390113B2 (en) * | 2008-03-21 | 2014-01-15 | 株式会社アイチコーポレーション | Work vehicle |
-
1989
- 1989-05-31 JP JP6306389U patent/JPH0644760Y2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100625092B1 (en) * | 2005-02-28 | 2006-09-20 | 주식회사 한우티엔씨 | Automatic safety extent designating system for ladder vehicle |
Also Published As
Publication number | Publication date |
---|---|
JPH032866U (en) | 1991-01-11 |
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