JP2598098Y2 - Work light device for construction machinery - Google Patents
Work light device for construction machineryInfo
- Publication number
- JP2598098Y2 JP2598098Y2 JP1993018202U JP1820293U JP2598098Y2 JP 2598098 Y2 JP2598098 Y2 JP 2598098Y2 JP 1993018202 U JP1993018202 U JP 1993018202U JP 1820293 U JP1820293 U JP 1820293U JP 2598098 Y2 JP2598098 Y2 JP 2598098Y2
- Authority
- JP
- Japan
- Prior art keywords
- light
- angle
- work
- projection
- 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 - Fee Related
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/26—Indicating devices
- E02F9/264—Sensors and their calibration for indicating the position of the work tool
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Shovels (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、主として油圧ショベル
など建設機械の作業灯装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a working light device for construction equipment such as a hydraulic excavator.
【０００２】図５は、従来技術の作業灯装置をそなえた
油圧ショベルの斜視図である。図において、１は油圧シ
ョベルの下部走行体、２は上部旋回体、３は上部旋回体
２のフロント部に装着された作業アタッチメント、４は
作業アタッチメント３のブーム、５はアーム、６は作業
工具であるバケット、７は作業灯、ＰーＰは作業灯７の
投光中心線、角度ａは投光中心線ＰーＰが地平線Ｇ．
Ｌ．とのなす角度、角度ｂは作業灯７の照射範囲角度で
ある。図６は、従来技術の作業灯装置の電気回路であ
る。図において、８はスイッチ、９は電源である。図５
及び図６に示すように、油圧ショベルでは上部旋回体２
のフロント部にブーム４、アーム５、バケット６を順次
連結した作業アタッチメント３を装備し、上記ブーム４
に、前方下部の照射を行う作業灯７を固定して配設して
いる。そして、スイッチ８のオンオフ操作を行うことに
より作業灯７の点滅を行うようにしている。FIG. 5 is a perspective view of a hydraulic excavator provided with a conventional work light device. In the drawing, 1 is a lower traveling body of a hydraulic shovel, 2 is an upper revolving superstructure, 3 is a work attachment mounted on a front portion of the upper revolving superstructure 2, 4 is a boom of the work attachment 3, 5 is an arm, and 6 is a work tool. , A work light 7, PP a light projecting center line of the work light 7, an angle a, a light projecting center line PP is a horizon G.
L. , The angle b is the irradiation range angle of the working lamp 7. FIG. 6 is an electric circuit of a conventional work light device. In the figure, 8 is a switch, and 9 is a power supply. FIG.
As shown in FIG. 6 and FIG.
A work attachment 3 in which a boom 4, an arm 5, and a bucket 6 are sequentially connected to a front portion of the boom 4 is provided.
A work lamp 7 for irradiating the lower front part is fixedly disposed. The work light 7 is made to blink by performing an on / off operation of the switch 8.
【０００３】[0003]
【考案が解決しようとする課題】従来技術では、作業灯
装置用スイッチをオンにしていると、作業灯は点灯状態
を持続する。そして油圧ショベルの掘削作業時にバケッ
トを土質にくい込ませるときには、作業灯は油圧ショベ
ルの前方下部を照射する。しかしバケット内の土質のダ
ンプなどを行うときには、ブームを上昇回動させる。こ
の場合にブームの側面部に固定して取付けている作業灯
の投光方向は、水平の前方または上向き方向となる。そ
のために油圧ショベルが市街地で夜間作業等を行ってい
るとき、上記作業等の照射を受けて周囲の住人が迷惑を
していた。本考案は、上記の問題点を解決できる作業灯
装置を提供することを目的とする。In the prior art, when the switch for the work light device is turned on, the work light stays on. Then, when excavating the hydraulic excavator, the work light illuminates the lower front portion of the hydraulic excavator when the bucket is hardly soiled. However, when dumping soil in the bucket or the like, the boom is rotated upward. In this case, the direction of projection of the work lamp fixedly attached to the side surface of the boom is a horizontal forward or upward direction. Therefore, when the hydraulic excavator is performing night work or the like in an urban area, the surrounding residents are inconvenienced by the irradiation of the work or the like. An object of the present invention is to provide a work light device that can solve the above problems.
【０００４】[0004]
【課題を解決するための手段】上部旋回体のフロント部
にブーム、アーム、作業工具を順次連結した作業アタッ
チメントを装備し、上記ブームに作業灯を配設した作業
灯装置において、前記作業灯の投光中心線の投光角度を
検出する投光角度検出手段と、前記投光角度検出手段に
より検出された投光角度を入力するコントローラと、前
記作業灯と電源とを連通する電気回路に設けられた電磁
スイッチとを有し、予め設定された限界投光角度より前
記作業灯の投光角度が上向きであるとき、前記コントロ
ーラは前記電磁スイッチに対して指令信号を出力するよ
うにした。更にまた、投光角度選定ボリューム操作部を
設け、前記投光角度選定ボリューム操作部により選定さ
れる投光角度を前記限界投光角度とした。或いはまた、
前記投光角度検出手段は、ブームの回動角度を検出する
角度センサに設定した。或いはまた、前記コントローラ
に、通常投光角度範囲と投光調整角度範囲を設定し、前
記投光調整角度範囲に前記作業灯の投光中心線があると
き、前記コントローラより上記電磁スイッチに指令信号
を出力するようにした。[MEANS FOR SOLVING THE PROBLEMS] The front part of the upper revolving unit
Work attachment, in which the boom, arm, and
Work that is equipped with a work light and the boom is equipped with a work light
In the lighting device, the projecting angle of the projecting center line of the work lamp is
The projection angle detecting means for detecting, and the projection angle detecting means
And a controller to input the detected projection angle.
Electromagnetic provided in the electrical circuit that communicates the work light with the power supply
And a switch, before the preset limit projection angle.
When the working lamp is at an upward projection angle, the control
Output a command signal to the electromagnetic switch.
Caught. Furthermore, the projection angle selection volume operation unit
And selected by the projection angle selection volume operation unit.
The projected light angle was defined as the limit projected angle. Alternatively,
The light emitting angle detecting means detects a turning angle of the boom.
Set to angle sensor. Alternatively, the controller
Set the normal emission angle range and the emission adjustment angle range
When there is a light emitting center line of the working light in the light emitting adjustment angle range.
Come, and outputs a command signal to the electromagnetic switch from the controller.
【０００５】[0005]
【実施例】以下、本考案の実施例を図面に基づいて詳細
に説明する。図１は、本考案の第１実施例作業灯装置を
そなえた油圧ショベルの一部切欠き側面図である。図に
おいて、１０は上部旋回体、３’は上部旋回体１０のフ
ロント部に装着されている作業アタッチメント、４’は
作業アタッチメント３’のブーム、１１はブーム
（４’）先端部とアーム（５’）基端部とを結合してい
るブーム先端部ピン、１２は上部旋回体１０のセンタフ
レーム１３とブーム（４’）基端部とを結合しているブ
ーム基端部ピン、７’は作業灯、１４はブームシリン
ダ、１５は投先角度検出器である。ブーム４’のブーム
角度ｃを検出する角度センサである。図２は、本考案の
作業灯装置の電気回路図である。図において、１６は電
磁スイッチ、１７はコントローラ、１８は投光角度選定
ボリューム操作部である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a partially cutaway side view of a hydraulic excavator provided with a working light device according to a first embodiment of the present invention. In the figure, 10 is an upper revolving structure, 3 'is a work attachment mounted on the front part of the upper revolving structure 10, 4' is a boom of the work attachment 3 ', 11 is a boom (4') tip and an arm (5). ') A boom tip pin connecting the base end, 12 is a boom base pin connecting the center frame 13 of the upper swing body 10 and the boom (4') base end, and 7 'is a boom base pin. A work light, 14 is a boom cylinder, and 15 is a target angle detector. This is an angle sensor that detects the boom angle c of the boom 4 '. FIG. 2 is an electric circuit diagram of the working light device of the present invention. In the figure, 16 is an electromagnetic switch, 17 is a controller, and 18 is a projection angle selection volume operation unit.
【０００６】次に、本考案の第１実施例作業灯装置の構
成を図１及び図２について述べる。本実施例では、ブー
ム４’の回動角度（ブーム角度ｃをいう）を角度センサ
１５に検出してコントローラ１７に入力するようにし、
またそのコントローラ１７に対して作業灯７’の投光中
心線Ｐ−Ｐと、地平線（Ｇ．Ｌ．）とのなす投光角度ａ
を所要の角度に予め選定できる投光角度選定ボリューム
操作部１８を設け、また作業灯７’と電源９’とを連通
する電気回路に電磁スイッチ１６を介設し、また投光角
度選定ボリューム操作部１８にて選定される投光角度を
限界投光角度として、限界投光角度より下向きに投光す
る角度範囲を通常投光角度範囲（図１に示す斜線イの範
囲）に、また限界投光角度より上向きに投光する角度範
囲を投光調整角度範囲に設定し、ブーム４’の回動操作
に応じて作業灯７’の投光角度が上記投光調整角度範囲
（ロ）にあるとき、コントローラ１７より電磁スイッチ
１６に対してオフ指令信号を出力するように構成した。Next, the structure of the working light device of the first embodiment of the present invention will be described with reference to FIGS. In the present embodiment , the rotation angle of the boom 4 ′ (referred to as boom angle c) is detected by the angle sensor 15 and input to the controller 17.
In addition, a light projecting angle a between the light projecting center line PP of the working light 7 ′ and the horizon (GL) is given to the controller 17.
Is provided with a light-projection angle selection volume operation unit 18 which can select a desired angle in advance, and an electromagnetic switch 16 is provided in an electric circuit for communicating the work lamp 7 ′ and the power supply 9 ′. The projection angle selected by the section 18 is defined as the limit projection angle, and the angle range in which the light is projected downward from the limit projection angle is defined as the normal projection angle range (the range indicated by the oblique line A in FIG. 1). The angle range in which the light is projected upward from the light angle is set as the light emission adjustment angle range, and the light emission angle of the work lamp 7 'is in the above light emission adjustment angle range (b) according to the turning operation of the boom 4'. At this time, the controller 17 is configured to output an off command signal to the electromagnetic switch 16.
【０００７】次に、本考案の第１実施例作業灯装置の作
用について述べる。本実施例では油圧ショベルが夜間作
業を行う場合に、周囲の住宅状況などを考慮して、予め
投光角度選定ボリューム操作部１８を操作して所要の限
界投光角度を選定する。そして作業アタッチメント３’
を作動させると、ブーム４’の回動角度に応じて角度セ
ンサ１５からブーム角度（Ｃ）検出信号がコントローラ
１７に入力される。コントローラ１７では上記ブーム角
度検出信号に基づき演算し、そのブーム角度が限界投光
角度に対応する限界のブーム角度より大きい場合、すな
わち現在の実際のブーム角度は通常投光角度範囲（イ）
にあると判断して、電磁スイッチ１６に対してオン指令
信号を出力する。電磁スイッチ１６が閉じられるので、
作業灯７’は点灯し、支障なく油圧ショベルの前方下部
の作業を行うことができる。またブーム角度が限界投光
角度に対応する限界のブーム角度より小さい場合（すな
わち作業灯７’の投光方向がほぼ水平の前方または上向
きとなる場合）には、現在の実際のブーム角度は投光調
整角度範囲（ロ）にあると判断して、電磁スイッチ１６
に対してオフ指令信号を出力する。電磁スイッチ１６が
開かれるので、作業灯７’は消灯し、作業灯７’が水平
の前方または上向き方向を照射することはない。なお本
実施例では作業灯７’の投光方向がほぼ水平の前方また
は上向きになったとき消灯するようにしているが、上記
の場合に、作業灯をかなり減光するようにしてもよい。Next, the operation of the working light device according to the first embodiment of the present invention will be described. In the present embodiment , when the hydraulic excavator performs nighttime work, the required projection angle is selected in advance by operating the projection angle selection volume operation unit 18 in consideration of the surrounding housing conditions and the like. And work attachment 3 '
Is operated, a boom angle (C) detection signal is input to the controller 17 from the angle sensor 15 in accordance with the rotation angle of the boom 4 ′. The controller 17 calculates based on the boom angle detection signal, and when the boom angle is larger than the limit boom angle corresponding to the limit light projection angle, that is, the current actual boom angle is in the normal light projection angle range (a).
And outputs an ON command signal to the electromagnetic switch 16. Since the electromagnetic switch 16 is closed,
The work light 7 'is turned on, and the work in the lower front part of the excavator can be performed without any trouble. When the boom angle is smaller than the limit boom angle corresponding to the limit light projection angle (that is, when the light emitting direction of the work light 7 ′ is substantially horizontal forward or upward), the current actual boom angle is not changed. If the electromagnetic switch 16 is determined to be in the light adjustment angle range (b),
And outputs an off command signal. Since the electromagnetic switch 16 is opened, the work light 7 'is turned off, and the work light 7' does not irradiate in a horizontal forward or upward direction. In the present embodiment, the work light 7 'is turned off when the light emitting direction of the work light 7' becomes substantially horizontal forward or upward. However, in the above case, the work light may be considerably dimmed.
【０００８】次に図３は、本考案の第２実施例作業灯装
置をそなえた油圧ショベルの一部切欠き側面図である。
図において、第１実施例作業灯装置（図１及び図２に示
す）と同一構成要素を使用するものに対しては同符号を
付す。この図３に示す作業灯装置では、ブーム４’の回
動角度（Ｃ）を検出する手段として角度センサ（図１に
示す符号１５）の代りに、ブームシリンダ１４’に対し
てストロークセンサ１９を設けるようにしたものであ
る。したがってこの第２実施例作業灯装置の構成及び作
用機能は、第１実施例作業灯装置の場合と同様である。FIG. 3 is a partially cutaway side view of a hydraulic excavator provided with a working light device according to a second embodiment of the present invention.
In the figure, the same reference numerals are given to components using the same components as those of the working light device of the first embodiment (shown in FIGS. 1 and 2). In the working light device shown in FIG. 3, a stroke sensor 19 is provided for the boom cylinder 14 'instead of the angle sensor (reference numeral 15 shown in FIG. 1) as means for detecting the rotation angle (C) of the boom 4'. It is provided. Therefore, the configuration and function of the working light device of the second embodiment are the same as those of the working light device of the first embodiment.
【０００９】次に図４は、本考案の第３実施例作業灯装
置をそなえた油圧ショベルの一部切欠き側面図である。
図において、第１実施例作業灯装置（図１及び図２に示
す）と同一構成要素を使用するものに対しては同符号を
付す。この図４に示す作業灯装置では、作業灯２０に対
して作業灯２０の投光中心線Ｐ−Ｐと地平線（Ｇ．
Ｌ．）とのなす投光角度を検出する投光角度センサ２１
を設け、その投光角度センサ２１からの検出信号をコン
トローラ（図２に示すコントローラ１７と同じ）に入力
するようにしたものである。したがってこの第３実施例
作業灯装置の作用及び機能は、第１実施例作業灯装置の
場合と同様である。Next, FIG. 4 is a partially cutaway side view of a hydraulic excavator provided with a working light device according to a third embodiment of the present invention .
In the figure, the same reference numerals are given to components using the same components as those of the working light device of the first embodiment (shown in FIGS. 1 and 2). In the working light device shown in FIG. 4, the working light 20 has a light emitting center line PP and a horizon (G.
L. ) And a projection angle sensor 21 for detecting a projection angle
And a detection signal from the light projection angle sensor 21 is input to a controller (the same as the controller 17 shown in FIG. 2). Therefore, the operation and function of the working light device of the third embodiment are the same as those of the working light device of the first embodiment.
【００１０】[0010]
【考案の効果】本考案の作業灯装置では、油圧ショベル
の夜間作業時に、たとえばバケットを土質にくい込ませ
るときには、従来通り作業灯は油圧ショベルの前方下部
を支障なく照射する。そしてブームを上昇回動させた場
合に、作業灯の投光角度が限界投光角度を超えたときに
は、それを投光角度検出手段が検出するので、コントロ
ーラ及び電磁スイッチを介して作業灯は消灯される。す
なわち夜間作業時に、作業灯がほぼ水平の前方または上
向き方向を照射することはない。したがって本考案の作
業灯装置をそなえた油圧ショベルが市街地で夜間作業等
を行うとき、周囲の住人に迷惑のかかる作業灯の照射公
害を防止することができる。 According to the working light device of the present invention, when the hydraulic excavator is working at night, for example, when the bucket is sunk into the soil, the working light irradiates the front lower portion of the hydraulic excavator without any trouble as before. And when the boom is raised and turned, and the light emission angle of the work light exceeds the limit light emission angle,
Is detected by the projection angle detecting means, and the work lamp is turned off via the controller and the electromagnetic switch. That is, the work light does not irradiate a substantially horizontal forward or upward direction during nighttime work. Therefore, when the hydraulic shovel provided with the work light device of the present invention performs night work or the like in an urban area, it is possible to prevent the irradiation of the work light from being annoying to the surrounding residents.
【図１】本考案の第１実施例作業灯装置をそなえた油圧
ショベルの一部切欠き側面図である。FIG. 1 is a partially cutaway side view of a hydraulic shovel including a working light device according to a first embodiment of the present invention.
【図２】本考案の第１実施例作業灯装置の電気回路図で
ある。FIG. 2 is an electric circuit diagram of the working light device according to the first embodiment of the present invention ;
【図３】本考案の第２実施例作業灯装置をそなえた油圧
ショベルの一部切欠き側面図である。FIG. 3 is a partially cutaway side view of a hydraulic shovel including a working light device according to a second embodiment of the present invention.
【図４】本考案の第３実施例作業灯装置をそなえた油圧
ショベルの一部切欠き側面図である。FIG. 4 is a partially cutaway side view of a hydraulic shovel including a working light device according to a third embodiment of the present invention .
【図５】従来技術の作業灯装置をそなえた油圧ショベル
の斜視図である。FIG. 5 is a perspective view of a hydraulic shovel provided with a conventional work light device.
【図６】従来技術の作業灯装置の電気回路図である。FIG. 6 is an electric circuit diagram of a conventional working light device.
３，３’ 作業アタッチメント ４，４’ ブーム ７，７’，２０ 作業灯 ９ 電源 １４ ブームシリンダ １５ 角度センサ １６ 電磁スイッチ １７ コントローラ １８ 投光角度選定ボリューム操作部 １９ ストロークセンサ ２１ 投光角度センサ 3, 3 'work attachment 4, 4' boom 7, 7 ', 20 work light 9 power supply 14 boom cylinder 15 angle sensor 16 electromagnetic switch 17 controller 18 light emission angle selection volume operation unit 19 stroke sensor 21 light emission angle sensor
Claims (4)
ム、作業工具を順次連結した作業アタッチメントを装備
し、上記ブームに作業灯を配設した作業灯装置におい
て、前記作業灯の投光中心線の投光角度を検出する投光
角度検出手段と、前記投光角度検出手段により検出され
た投光角度を入力するコントローラと、前記作業灯と電
源とを連通する電気回路に設けられた電磁スイッチとを
有し、予め設定された限界投光角度より前記作業灯の投
光角度が上向きであるとき、前記コントローラは前記電
磁スイッチに対して指令信号を出力するようにしたこと
を特徴とする建設機械の作業灯装置。1. A work light device in which a work attachment in which a boom, an arm, and a work tool are sequentially connected to a front portion of an upper revolving structure, and a work light is arranged on the boom, a light emitting center line of the work light. A light-projection angle detecting means for detecting the light-projection angle, a controller for inputting the light-projection angle detected by the light-projection angle detecting means, and an electromagnetic switch provided in an electric circuit for communicating the work lamp with a power supply. Wherein the controller outputs a command signal to the electromagnetic switch when the light emitting angle of the working light is upward from a preset limit light emitting angle. Machine work light device.
前記投光角度選定ボリューム操作部により選定される投
光角度を前記限界投光角度としたことを特徴とする請求
項１記載の建設機械の作業灯装置。2. A light projection angle selection volume operation unit is provided,
The working light device for a construction machine according to claim 1, wherein the light projection angle selected by the light projection angle selection volume operation unit is the limit light projection angle.
角度を検出する角度センサであることを特徴とする請求
項１又は２記載の建設機械の作業灯装置。Wherein the projection angle detecting means, construction machine working light apparatus according to claim 1 or 2, wherein the is an angle sensor for detecting a rotational angle of the boom.
と投光調整角度範囲を設定し、前記投光調整角度範囲に
前記作業灯の投光中心線があるとき、前記コントローラ
より上記電磁スイッチに指令信号を出力するようにした
ことを特徴とする請求項１乃至３のいずれかに記載の建
設機械の作業灯装置。4. A normal projection angle range and a projection adjustment angle range are set in the controller, and when the projection center line of the work lamp is in the projection adjustment angle range, the controller switches the electromagnetic switch to the electromagnetic switch. 4. The working light device for a construction machine according to claim 1 , wherein a command signal is output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993018202U JP2598098Y2 (en) | 1993-03-17 | 1993-03-17 | Work light device for construction machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993018202U JP2598098Y2 (en) | 1993-03-17 | 1993-03-17 | Work light device for construction machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0671545U JPH0671545U (en) | 1994-10-07 |
| JP2598098Y2 true JP2598098Y2 (en) | 1999-07-26 |
Family
ID=11965060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1993018202U Expired - Fee Related JP2598098Y2 (en) | 1993-03-17 | 1993-03-17 | Work light device for construction machinery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2598098Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3974586B1 (en) * | 2017-03-07 | 2024-03-13 | Sumitomo Heavy Industries, Ltd. | Work support system for a construction machine |
| JP6993999B2 (en) * | 2019-03-12 | 2022-01-14 | 日立建機株式会社 | Construction machinery |
-
1993
- 1993-03-17 JP JP1993018202U patent/JP2598098Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0671545U (en) | 1994-10-07 |
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|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19990427 |
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| LAPS | Cancellation because of no payment of annual fees |