JPS6128640A - Excavator - Google Patents
ExcavatorInfo
- Publication number
- JPS6128640A JPS6128640A JP14884984A JP14884984A JPS6128640A JP S6128640 A JPS6128640 A JP S6128640A JP 14884984 A JP14884984 A JP 14884984A JP 14884984 A JP14884984 A JP 14884984A JP S6128640 A JPS6128640 A JP S6128640A
- Authority
- JP
- Japan
- Prior art keywords
- excavation
- blade
- detection device
- stop signal
- detector
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/02—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/14—Component parts for trench excavators, e.g. indicating devices travelling gear chassis, supports, skids
- E02F5/145—Component parts for trench excavators, e.g. indicating devices travelling gear chassis, supports, skids control and indicating devices
-
- 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
- E02F9/24—Safety devices, e.g. for preventing overload
- E02F9/245—Safety devices, e.g. for preventing overload for preventing damage to underground objects during excavation, e.g. indicating buried pipes or the like
Abstract
Description
【発明の詳細な説明】
本発明は各種土木、建設工＠に於ける道路等の掘削に際
して、地中に埋設されている都市ガス供給管等の導電性
埋設物の損傷事故を防止するようにした掘削装置＊ｒ！
Ａするものである。[Detailed Description of the Invention] The present invention is designed to prevent damage accidents to conductive buried objects such as city gas supply pipes buried underground when excavating roads etc. in various civil engineering and construction works. Drilling equipment*r!
A.
（従来の技術及びその問題点」
都市ガス供給管等の導電性埋設物の位置を検知し得るも
のとしてはパイプロケータ−があるが、これを掘削時に
於ける埋設物の損傷防止に使用しようとすると、各々の
埋設物を調査しなければならず、非常に面倒であると共
に不正確で６Ｄ実用的でない。そこて現在はます手掘を
行なって目視により埋設物の確認を行ないつつ、掘削を
行なっているが、この方法も前述と同様に非常に面倒で
あシ、そしてこれを怠ると損傷事故につながる危険性が
高い。この為、従来掘削作業に於いては、事故を起こす
のではないかという不安感が常にあった。(Prior art and its problems) A pipe locator is a device that can detect the location of conductive buried objects such as city gas supply pipes, but attempts have been made to use this to prevent damage to buried objects during excavation. Then, each buried object must be investigated, which is extremely troublesome and inaccurate, making 6D impractical.Therefore, currently, the excavation is carried out by hand and visually confirms the buried objects. However, as mentioned above, this method is very troublesome, and if it is neglected, there is a high risk of causing damage and accidents.For this reason, in conventional excavation work, it is difficult to avoid accidents. There was always a sense of unease.
本発明は以上の従来の欠点を解決し、不安感なく掘削作
業を行なえ、しかも埋設物の損傷を効果的に防止し得る
ようにすることを目的とするものである。以下実施例を
示す図面式基づいて詳細に説明すると次の通シである。It is an object of the present invention to solve the above-mentioned conventional drawbacks, to enable excavation work to be carried out without anxiety, and to effectively prevent damage to buried objects. The following is a detailed explanation based on the drawings showing the embodiments.
（問題点を解決するための手段フ
第１図〜第３図は掘削機械、器具Ａを例示するもので、
第１図は例えばガス漏洩検査に際してのポーリングを行
なうための電動ドリル、油圧あるいは空気圧ドリル等を
示すものである。また第２図は推進工事に用いる水平ホ
ガー等を示すもので、第３図はバックホー等を示すもの
である。以上の掘削機械、器具の掘削刃１に、検知装置
２に連なる電線３を接続して、該掘削刃１を一方の検知
電極とすると共に、該検知装置２に連なる接地部４を他
方の検知電極とする。検知装置２は前記検知電極間、即
ち掘削刃１と接地部４間に流れる所定の電流を検知して
掘削停止信号を発する構成とする。検知装置２はこのよ
うに掘削刃１と接地部４間に通電自在とし、そして所定
の［＆を検知して掘削停止信号を発する構成であれば後
述例に示す構成等適宜である。そしてこの検知装置２は
掘削停止信号によυ警報を発したり、掘削動作を自動的
に停止させる構成とする。(Means for solving the problem) Figures 1 to 3 illustrate an excavation machine and instrument A.
FIG. 1 shows, for example, an electric drill, a hydraulic drill, or a pneumatic drill for polling during a gas leak test. Further, Fig. 2 shows a horizontal hogger, etc. used for propulsion work, and Fig. 3 shows a backhoe, etc. An electric wire 3 connected to a detection device 2 is connected to the excavation blade 1 of the above-mentioned excavation machine and equipment, and the excavation blade 1 is used as one detection electrode, and the grounding part 4 connected to the detection device 2 is used as the other detection electrode. Use as an electrode. The detection device 2 is configured to detect a predetermined current flowing between the detection electrodes, that is, between the excavation blade 1 and the grounding portion 4, and issue an excavation stop signal. The detection device 2 may have any suitable configuration, such as the configuration shown in the example described later, as long as it is configured to freely conduct electricity between the excavation blade 1 and the grounding portion 4, and to detect a predetermined [& and issue an excavation stop signal. The detection device 2 is configured to issue a υ alarm in response to an excavation stop signal and automatically stop the excavation operation.
（作用）
以上の構成に於いて、検知装置２を動作させた状態で椙
削刃１により掘削を行なう。掘削刃１が地中に入ると、
接地部４間に大地を介して電流が流れるが、このｔ流は
微小であるため検知装置２は掘削停止信号を発しない。(Function) In the above-described configuration, excavation is performed with the sandpaper cutting blade 1 while the detection device 2 is operated. When the excavation blade 1 enters the ground,
A current flows between the grounding portions 4 via the ground, but since this t current is minute, the detection device 2 does not issue an excavation stop signal.
しかして掘削が進んで掘削刃１が例えば都市ガス供給管
等の導電性埋設物５に接触すると、該導電性埋設物５を
介して、掘削刃１と接地部４間に電流が流れる。この時
の電流は前述した際の電流と比較して非常に大きく、従
って検知装置２はかかる電流により掘削停止信号を発す
る。この掘削停止信号は警報を発するだけとし、作業者
がこの警報を確認して掘削を停止するようにしても良い
し、警報と同時に自動的に掘削動作を停止させるように
しても良い。かくして本発明は掘削に際して、掘削刃１
が導電性埋設物５に接触した時には、検知装置２から発
せられる掘削停止信号によって掘削を停止することがで
きるので、埋設物の損傷事故を未然に防止することがで
きる。As the excavation progresses and the excavation blade 1 comes into contact with a conductive buried object 5 such as a city gas supply pipe, a current flows between the excavation blade 1 and the ground portion 4 via the conductive buried object 5. The current at this time is much larger than the current described above, so the detection device 2 issues an excavation stop signal based on this current. This excavation stop signal may only issue an alarm, and the operator may confirm this alarm and stop excavation, or the excavation operation may be automatically stopped at the same time as the alarm. Thus, in the present invention, when excavating, the excavating blade 1
When the conductive buried object 5 comes into contact with the conductive buried object 5, the excavation can be stopped by an excavation stop signal issued from the detection device 2, so that damage to the buried object can be prevented.
（実施例）
第４図（ａ）に示す実施例に於いて、掘削機械、器具Ａ
は、外部電源６によって掘削刃１を駆動する構成とする
と共に、掘削刃１は適宜抵抗７を介して電線３によりミ
源と接続し、検知装置２は漏電遮断器により構成したも
のである。かかる実施例ではいわゆる漏電により前記掘
削停止信号を発し、同時に掘削機械、器具Ａへの通電を
遮断して掘削を自動停止するものでおる。(Example) In the example shown in FIG. 4(a), the excavating machine, instrument A
The excavator blade 1 is configured to be driven by an external power source 6, and the excavator blade 1 is connected to a power source by an electric wire 3 via a resistor 7 as appropriate, and the detection device 2 is configured by an earth leakage breaker. In this embodiment, the excavation stop signal is generated by a so-called electric leakage, and at the same time, the power supply to the excavation machine and instrument A is cut off to automatically stop excavation.
また第４図（ｂ）に示す実施例に於いて、掘削機械、器
具Ａは、電源を用いた駆動類以外の駆動源、例えば内燃
機関や人力によって掘削刃１を駆動するもので、検知装
置２は前記掘削停止信号によって骨粗を発する構成であ
る。勿論、かかる駆動源を用いた掘削機械、器具Ａに於
いても、掘削停止信号によって警報と同時に掘削刃１の
駆動を自動的に停止するように溝底しても艮い。Further, in the embodiment shown in FIG. 4(b), the excavating machine and instrument A drive the excavating blade 1 by a drive source other than a drive type using a power supply, such as an internal combustion engine or human power, and the detection device 2 is a configuration in which bone coarsening is generated by the excavation stop signal. Of course, in the excavation machine and instrument A using such a drive source, the excavation blade 1 may be automatically stopped driving at the bottom of the trench at the same time as the alarm is issued by the excavation stop signal.
（発明の効果）
不発明は以上の通電、掘削機械、器具の掘削刃と接地部
を、対を成す検知電極とし、掘削に際して該掘削刃１が
地中の導電性埋設物に接触した時に、該埋設物を通して
前記検知電極間に流れる電流を検知装置で検知して掘削
停止信号を発するようにしたので、掘削に際しての前記
埋設物の損傷事故を効果的に防止することができるとい
う効果がある。また本発明は既設のあらゆる種類の掘削
機械、器具に適用することが可能であって、安価に構成
することができるという効果がある。かくして不発８Ａ
紘埋設物が輻績している都市部に於いても、不安感なし
に掘削作業を行なうことができ、しかも埋設物の損傷事
故を防げることにより、災害や経済的損失を効果的に防
止し得るという効果がある。(Effects of the Invention) The non-invention is that the excavating blade and the grounding part of the above-mentioned energized, excavating machine and equipment are used as a pair of detection electrodes, and when the excavating blade 1 comes into contact with a conductive buried object underground during excavation, Since the detection device detects the current flowing between the detection electrodes through the buried object and issues an excavation stop signal, it is possible to effectively prevent damage to the buried object during excavation. . Further, the present invention can be applied to all types of existing excavation machines and tools, and has the advantage that it can be constructed at low cost. Thus misfired 8A
Even in urban areas where buried objects are common, excavation work can be carried out without anxiety, and by preventing accidents that damage buried objects, it can effectively prevent disasters and economic losses. It has the effect of gaining.
第１図〜第３図は本発明装置の実施例の全体説明図、第
４図（ａ） 、 （ｂ）は本発明装置の実施例の構成並
びに動作を示す要部説明図である。
符号１・・・掘削刃、２・・・検知装置、３・・・電線
、４・・・接地部、５・・・導電性埋設物、６・・・外
部電源、７・・・抵抗、Ａ・・・掘削機械、器具。
第１図
第３図
第４図（ａ）
第４図（ｂ）1 to 3 are overall explanatory diagrams of an embodiment of the device of the present invention, and FIGS. 4(a) and 4(b) are explanatory diagrams of essential parts showing the configuration and operation of the embodiment of the device of the present invention. Code 1...Drilling blade, 2...Detection device, 3...Electric wire, 4...Grounding part, 5...Conductive buried object, 6...External power source, 7...Resistor, A...Drilling machines and equipment. Figure 1 Figure 3 Figure 4 (a) Figure 4 (b)
Claims (2)
線を接続して該掘削刃を一方の検知電極とすると共に、
前記検知装置に連なる接地部を他方の検知電極とし、掘
削に際して前記掘削刃が地中の導電性埋設物に接触した
時に、該埋設物を通して前記検知電極間に流れる電流を
前記検知装置で検知して掘削停止信号を発するようにし
たことを特徴とする掘削装置(1) Connect the electric wire connected to the detection device to the excavation blade of the excavation machine or equipment, and use the excavation blade as one of the detection electrodes,
A grounded part connected to the detection device is used as the other detection electrode, and when the excavation blade contacts a conductive buried object underground during excavation, the detection device detects a current flowing between the detection electrodes through the buried object. A drilling device characterized in that the excavation stop signal is emitted when
する構成とすると共に、掘削刃は適宜抵抗を介して電線
により電源と接続し、検知装置は漏電遮断器により構成
したことを特徴とする特許請求の範囲第１項記載の掘削
装置(2) The excavating machine and equipment are characterized in that the excavating blade is driven by an external power source, the excavating blade is connected to the power source by an electric wire through an appropriate resistance, and the detection device is configured with an earth leakage breaker. Drilling equipment according to claim 1, which is
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14884984A JPS6128640A (en) | 1984-07-18 | 1984-07-18 | Excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14884984A JPS6128640A (en) | 1984-07-18 | 1984-07-18 | Excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6128640A true JPS6128640A (en) | 1986-02-08 |
Family
ID=15462110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14884984A Pending JPS6128640A (en) | 1984-07-18 | 1984-07-18 | Excavator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6128640A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0253477A1 (en) * | 1986-05-22 | 1988-01-20 | Utilx Corporation | Arrangement for the detection of high voltages |
| JPH08208365A (en) * | 1993-04-14 | 1996-08-13 | Kanagawa Kagaku Gijutsu Akad | Device and method for solution growth of crystal |
| US20130313843A1 (en) * | 2012-05-04 | 2013-11-28 | Rigoberto Hernandez | Electrically active hand-operable excavation apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5228281A (en) * | 1975-08-28 | 1977-03-03 | Fujitsu Ltd | Light emitting semiconductor device |
-
1984
- 1984-07-18 JP JP14884984A patent/JPS6128640A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5228281A (en) * | 1975-08-28 | 1977-03-03 | Fujitsu Ltd | Light emitting semiconductor device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0253477A1 (en) * | 1986-05-22 | 1988-01-20 | Utilx Corporation | Arrangement for the detection of high voltages |
| JPH08208365A (en) * | 1993-04-14 | 1996-08-13 | Kanagawa Kagaku Gijutsu Akad | Device and method for solution growth of crystal |
| US20130313843A1 (en) * | 2012-05-04 | 2013-11-28 | Rigoberto Hernandez | Electrically active hand-operable excavation apparatus |
| US8708382B2 (en) * | 2012-05-04 | 2014-04-29 | Rigoberto Hernandez | Electrically active hand-operable excavation apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3916298A (en) | System utilizing galvanic potentials for detecting buried conductive structures | |
| US3648282A (en) | Alarm signal apparatus to indicate damage to the insulation of an electrical cable as it is being laid underground | |
| US2747154A (en) | Concrete tool immobilizing circuit | |
| JPS6325569A (en) | Current detecting alarm device monitoring presence of high voltage | |
| US4807587A (en) | Process of forming openings | |
| JPS6128640A (en) | Excavator | |
| KR100503713B1 (en) | Apparatus for searching a electric leakage point on buried cable and the method | |
| US4626834A (en) | Ground continuity monitor for tool stop controllers | |
| JP7258394B1 (en) | Environment monitoring device and method for mining robot | |
| KR20100062044A (en) | Safety cutter for concentric neutral conductor power cable | |
| US5027108A (en) | Buried power line contact alert | |
| JP2000204884A (en) | Method and device for detecting wear of cutter bit of shield machine | |
| JP3237055B2 (en) | Measurement method of grounding resistance of mesh grounding pole | |
| US2561152A (en) | Ditch digging machine with warning device | |
| JPH0486587A (en) | Detection of object buried underground | |
| JPH06222152A (en) | Buried pipe detecting device | |
| CN105988061A (en) | High voltage single core cable protective layer fault locating method | |
| JP2857781B2 (en) | Road surface cutter | |
| KR200143440Y1 (en) | Warning tape of underground-laying wastes | |
| KR102252932B1 (en) | Guided hole excavating device for ground Rod construction of power cable and method for electric ground safety | |
| CN218671658U (en) | Device for rapidly detecting and repairing leakage of buried pipeline | |
| JPS62178689A (en) | Method and device for detecting face disintegration of shielding type excavator | |
| KR100660157B1 (en) | Third-party damage monitoring system by closed loop | |
| JPS62164915A (en) | Preventer for breakage trouble of buried pipe | |
| JPS6022310B2 (en) | Underground object detection device |