JPH0740866A - Contracted width detecting device for crawler - Google Patents
Contracted width detecting device for crawlerInfo
- Publication number
- JPH0740866A JPH0740866A JP20714593A JP20714593A JPH0740866A JP H0740866 A JPH0740866 A JP H0740866A JP 20714593 A JP20714593 A JP 20714593A JP 20714593 A JP20714593 A JP 20714593A JP H0740866 A JPH0740866 A JP H0740866A
- Authority
- JP
- Japan
- Prior art keywords
- turning
- detector
- crawler
- revolving
- crawler belt
- 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
Landscapes
- Jib Cranes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、走行体の履帯間の間隔
を変えられる構造を有するクロ−ラクレ−ンや油圧ショ
ベル等の建設機械に使用される履帯の縮幅検出装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crawler belt width reduction detecting device used in construction machines such as a crawl lane and a hydraulic excavator having a structure capable of changing the crawler belt spacing of a traveling body.
【０００２】[0002]
【従来の技術および発明が解決しようとする課題】クロ
−ラクレ−ン、油圧ショベル等、下部の走行体がクロ−
ラ式の建設機械においては、輸送時のコンパクト化を図
るために、該走行体の履帯間の幅が変えられる構造を有
するものがある。2. Description of the Related Art A lower traveling body such as a crawl crane, a hydraulic excavator or the like is a crawler.
Some LA-type construction machines have a structure in which the width between the crawler tracks of the traveling body can be changed in order to achieve compactness during transportation.
【０００３】図５（Ａ）はこのような履帯間の幅を変え
られる構造を有する従来のクロ−ラクレ−ンを該履帯間
を拡幅した状態で示す平面図、同（Ｂ）は該履帯間を縮
幅した状態で示す平面図である。図５に示すように、該
クロ−ラクレ−ンは走行体１上に旋回装置２を介して旋
回体３を設置し、該旋回体３にブ−ム４を取付けてな
る。走行体１は前記旋回装置２を設置したセンタ−フレ
−ム５と、サイドフレ−ム６と、サイドフレ−ム６の一
端に取付けた駆動ホイ−ル７と他端に取付けた従動ホイ
−ル８とに掛け回した履帯９とからなる。サイドフレ−
ム６にはその前後にガイド穴６ａを設け、これらのガイ
ド穴６ａに該センタ−フレ−ム５の前後にそれぞれ左右
に突出させて設けたビ−ム５ａを摺動自在に嵌合させて
いる。１１は前記左右一対のサイドフレ−ム６に両端を
ピン１１ａにより連結して取付けられ、履帯９間の幅を
拡縮する油圧シリンダである。FIG. 5 (A) is a plan view showing a conventional crawl lane having such a structure that the width between the crawler belts can be changed, and FIG. It is a top view which shows the state which narrowed. As shown in FIG. 5, the crawl lane comprises a revolving structure 3 mounted on a traveling structure 1 via a revolving device 2, and a boom 4 mounted on the revolving structure 3. The traveling body 1 includes a center frame 5 on which the swivel device 2 is installed, a side frame 6, a driving wheel 7 attached to one end of the side frame 6 and a driven wheel 8 attached to the other end. It consists of a crawler belt 9 hung around and. Side frame
The guide holes 6a are provided in the front and rear of the frame 6, and the beam 5a, which is provided in the front and rear of the center frame 5 so as to project left and right respectively, is slidably fitted in the guide holes 6a. There is. Reference numeral 11 is a hydraulic cylinder which is attached to the pair of left and right side frames 6 by connecting both ends with pins 11a and expands and contracts the width between the crawler belts 9.
【０００４】該クロ−ラクレ−ンをトレ−ラ等に搭載し
て現場へ輸送する時は、図５（Ｂ）に示すように、前記
油圧シリンダ１１を収縮することにより前記履帯９、９
間を縮幅し、旋回体３を走行体１の方向と一致させる。
また、作業を行う時には、図５（Ａ）に示すように、油
圧シリンダ１１を伸長することにより履帯９、９間を拡
幅する。When the crawl crane is mounted on a trailer or the like and transported to the site, the crawler tracks 9 and 9 are contracted by contracting the hydraulic cylinder 11 as shown in FIG. 5B.
The space is reduced so that the revolving structure 3 coincides with the direction of the traveling structure 1.
Further, when performing the work, as shown in FIG. 5 (A), the space between the crawler belts 9 and 9 is widened by extending the hydraulic cylinder 11.
【０００５】しかし、履帯９、９間を拡幅する作業を忘
れたり、拡幅が不十分な状態で作業を開始して、旋回体
３を旋回させブ−ム４を横方向（２点鎖線に示す位置）
に向けると、旋回体後方に取付けられるカウンタウエイ
ト３ａや該ブ−ム４および吊り荷の重さでクロ−ラクレ
−ンが転倒するおそれがあるという問題点があった。However, forgetting to widen the space between the crawler tracks 9, or starting the work with the widening being insufficient, the revolving structure 3 is swung to move the boom 4 in the lateral direction (indicated by the two-dot chain line). position)
However, the weight of the counterweight 3a attached to the rear of the revolving structure, the boom 4 and the suspended load may cause the black and white crane to fall over.
【０００６】この問題を解決するため、トラッククレ−
ンやラフテレ−ンについて、特公平３−２５３９９号公
報あるいは実開昭５７−１７４４８３号公報において開
示されているように、アウトリガ−の拡縮を検出するス
イッチを設け、該スイッチが拡縮状態を検出していない
時には警報を発するという技術を応用し、センタ−フレ
−ム５とサイドフレ−ム６との間に履帯９、９間の間隔
検出用のスイッチを設けることが考えられる。しかし、
この構成を採用すると、スイッチからの電気信号を旋回
体に伝達するために、旋回装置２にスリップリングを設
けなければならず、構造が複雑化し、装置価格が高価に
なるという問題点がある。In order to solve this problem, a track clear
As for the lane and rough terrain, as disclosed in Japanese Examined Patent Publication No. 3-25399 or Japanese Utility Model Laid-Open No. 57-1744483, a switch for detecting the expansion / contraction of the outrigger is provided, and the switch detects the expansion / contraction state. It is conceivable to provide a switch for detecting the distance between the crawler belts 9 and 9 between the center frame 5 and the side frame 6 by applying a technique of issuing an alarm when not in use. But,
If this configuration is adopted, in order to transmit the electric signal from the switch to the revolving unit, the revolving device 2 must be provided with a slip ring, which complicates the structure and increases the cost of the device.
【０００７】本発明は、上述のような問題点に鑑み、走
行体の履帯間の幅を変えられる構造を有するクロ−ラク
レ−ン、油圧ショベル等の建設機械において、転倒事故
の発生を未然に防止でき、しかも安価に製作できる履帯
の縮幅検出装置を提供することを目的とする。In view of the above-mentioned problems, the present invention can prevent the occurrence of a fall accident in a construction machine such as a crawl lane or a hydraulic excavator having a structure capable of changing the width between the crawler tracks of the traveling body. An object of the present invention is to provide a crawler belt width reduction detection device that can be prevented and can be manufactured at low cost.
【０００８】[0008]
【課題を解決するための手段】本発明は、上記目的を達
成するため、左右の履帯間の間隔が拡縮可能な走行体
と、該走行体上に設置された旋回体とを有する建設機械
において、前記旋回体に旋回検出器を設けると共に、前
記履帯を装着したサイドフレ−ムに前記旋回検出器を作
動させる被検出体を設け、履帯が縮幅状態にあり、かつ
前記旋回体が所定角度旋回した際に前記旋回検出器を作
動させるように前記旋回検出器および被検出体を配置
し、前記旋回体上の運転室に前記旋回検出器の作動によ
り警報を発する警報器を設けたことを特徴とする。In order to achieve the above object, the present invention provides a construction machine having a traveling body in which the distance between the left and right crawler belts can be expanded and contracted, and a revolving superstructure installed on the traveling body. A revolving detector is provided on the revolving superstructure, and a detected body for actuating the revolving detector is provided on a side frame on which the crawler belt is mounted, the crawler belt is in a reduced width state, and the revolving superstructure turns at a predetermined angle. The swivel detector and the object to be detected are arranged so as to operate the swivel detector when the swivel detector is operated, and an alarm device for issuing an alarm by the operation of the swivel detector is provided in a driver's cab on the swivel body. And
【０００９】[0009]
【作用】本発明は上述の構造を有するので、履帯間が縮
幅されている状態で、旋回体の向きが走行体の向きに一
致した状態から旋回体を旋回させると、旋回体に設けた
旋回検出器がサイドフレ−ムに設けた被検出体を検出し
て運転室に設置した警報器が作動する。旋回検出器と警
報器は旋回体上に設けられるので、旋回装置に電気信号
伝達用のスリップリングを必要としない。Since the present invention has the above-mentioned structure, when the revolving structure is swung from the state where the direction of the revolving structure matches the direction of the traveling structure with the crawler belts being narrowed, the revolving structure is provided on the revolving structure. The turning detector detects the object to be detected provided on the side frame, and the alarm device installed in the cab is activated. Since the turning detector and the alarm are provided on the turning body, the turning device does not need a slip ring for transmitting an electric signal.
【００１０】[0010]
【実施例】図１（Ａ）は本発明による履帯の縮幅検出装
置の一実施例を備えたクロ−ラクレ−ンを履帯間を拡幅
した状態で示す平面図、同（Ｂ）はその正面図、また、
図２（Ａ）は上部の旋回体の向きを変えかつ拡幅状態で
示す該実施例のクローラクレーンの平面図、図２（Ｂ）
は該実施例のクロ−ラクレ−ンを履帯間を縮幅した状態
で示す平面図である。1 (A) is a plan view showing a crawl lane having an embodiment of a crawler belt width reduction detecting device according to the present invention in a state where the crawler belt is widened, and FIG. 1 (B) is a front view thereof. Figure, also
FIG. 2 (A) is a plan view of the crawler crane of the embodiment showing the upper revolving structure with the orientation thereof changed and widened, FIG. 2 (B).
[Fig. 3] is a plan view showing a crawl lane of the embodiment in a state where the crawler belt is narrowed.
【００１１】図１に示すように、本例のクロ−ラクレ−
ンは、前述の従来のクロ−ラクレ−ンに対して、旋回体
３の下面に例えば磁性体の近接により作動する近接スイ
ッチでなる旋回検出器１４を設け、左右のサイドフレ−
ム６、６にそれぞれ磁性体でなる被検出体１５、１５を
旋回装置２側に突出して設けたものである。前記旋回検
出器１４は旋回体３の旋回中心Ｏに対してブ−ム４取付
け部と反対側に設けられ、旋回体３の旋回に伴い２点鎖
線Ｒで示す軌跡を描き、被検出体１５を検出することに
より作動する。前記被検出体１５の履帯９からの突出長
さＬおよび幅Ｗは、図２（Ｂ）に示すように、油圧シリ
ンダ１１を収縮させて前記履帯９、９間を縮幅した状態
においては、旋回体３が走行体１の向きと一致した状態
から所定角度旋回すると、前記旋回検出器１４の検出域
（前記２点鎖線Ｒの内側）になり、かつ、図１（Ａ）、
図２（Ａ）に示すように、油圧シリンダ１１を伸長して
左右の履帯９、９間を拡幅した状態においては、旋回体
３を旋回させて横に向けた場合にも、前記旋回検出器１
４の検出域外（前記２点鎖線Ｒの外側）になるように設
定されている。また、旋回中心Ｏ側の端部１５ａは旋回
装置２を逃げた円弧状に形成されている。また、１６は
旋回検出器１４が被検出体１５を検出した時に作動する
ランプまたはブザ−等の警報器であり、該警報器１６は
運転室に設けられている。なお、前記旋回検出器１４に
は、超音波を利用した近接検出器あるいは光検出器等を
用いてもよく、被検出体１５は該旋回検出器１４に応じ
て設定する。As shown in FIG. 1, the black and white lacquer of this example.
In contrast to the above-mentioned conventional crawl crane, the swivel detector 14 is provided on the lower surface of the swivel body 3, for example, a proximity switch that is operated by the proximity of a magnetic body, and the left and right side frames are provided.
The detection objects 15, 15 made of magnetic material are provided in the frames 6, 6 so as to project toward the turning device 2. The revolving detector 14 is provided on the side opposite to the mounting portion of the boom 4 with respect to the revolving center O of the revolving structure 3, draws a locus indicated by a chain double-dashed line R as the revolving structure 3 revolves, and detects the object 15 to be detected. It works by detecting. As shown in FIG. 2B, the protrusion length L and the width W of the detected body 15 from the crawler belt 9 are as follows when the hydraulic cylinder 11 is contracted to reduce the width between the crawler belts 9 and 9. When the revolving unit 3 turns a predetermined angle from the state in which the direction of the traveling unit 1 matches, the detection range of the revolving detector 14 (inside the two-dot chain line R) is reached, and FIG.
As shown in FIG. 2 (A), in the state where the hydraulic cylinder 11 is extended to widen the space between the left and right crawler belts 9, 9, even when the revolving unit 3 is revolved and turned sideways, the revolving detector is described. 1
4 is set outside the detection area (outside the two-dot chain line R). Further, the end portion 15a on the turning center O side is formed in an arc shape which escapes the turning device 2. Reference numeral 16 is an alarm device such as a lamp or a buzzer which is activated when the turning detector 14 detects the detected object 15, and the alarm device 16 is provided in the driver's cab. The swirl detector 14 may be a proximity detector using an ultrasonic wave or a photodetector, and the detected object 15 is set according to the swirl detector 14.
【００１２】図３（Ａ）は本発明による履帯の縮幅検出
装置の電気回路図であり、１７は旋回体３に搭載したバ
ッテリ−、１９はクレーンのエンジン始動等、動力系の
始動により閉じるスイッチであり、動力系が起動された
後、旋回動作によって旋回検出器１４（近接スイッチ）
が被検出体１５を検出するとスイッチ１４が閉じるの
で、警報器１６に通電されて警報器１６が作動する。FIG. 3A is an electric circuit diagram of the crawler belt width reduction device according to the present invention, in which 17 is a battery mounted on the revolving structure 3 and 19 is closed by starting a power system such as engine start of a crane. It is a switch, and the turning detector 14 (proximity switch) by turning operation after the power system is activated.
When the object 15 to be detected is detected, the switch 14 is closed, so that the alarm device 16 is energized and the alarm device 16 operates.
【００１３】このように、履帯９、９間を縮幅した状態
で旋回体３を走行体１と向きが一致した状態から旋回さ
せると、旋回体３に設けた旋回検出器１４がサイドフレ
−ム６に設けた被検出体１５を検出してランプまたはブ
ザ−等の警報器１６を作動させるので、運転者は旋回体
３のブ−ム４が横向きになる前に旋回を止め、クロ−ラ
クレ−ンの転倒事故の発生を未然に防止することができ
る。また、被検出体１５をサイドフレ−ム６に設け、旋
回検出器１４を旋回体３に設けたので、旋回検出器１４
から運転室の警報器１６へ直接配線でき、走行体１から
旋回体３へ電気信号を伝えるスリップリングが不要であ
り電気回路の構成が簡単となる。As described above, when the revolving structure 3 is rotated from the state in which the direction of the traveling structure 1 coincides with the traveling structure 1 with the crawler belts 9 and 9 narrowed, the revolving detector 14 provided on the revolving structure 3 causes the side frame to rotate. 6 detects the object 15 to be detected and activates the alarm 16 such as a lamp or buzzer, the driver stops turning before the boom 4 of the revolving structure 3 turns sideways, and the crawl crawl. It is possible to prevent a fall accident of the engine. Further, since the detected object 15 is provided on the side frame 6 and the turning detector 14 is provided on the turning body 3, the turning detector 14 is provided.
Can be directly wired to the alarm device 16 in the driver's cab, a slip ring for transmitting an electric signal from the traveling body 1 to the revolving structure 3 is not required, and the configuration of the electric circuit is simplified.
【００１４】図３（Ｂ）は本発明による履帯の縮幅検出
装置の他の実施例を備えたクロ−ラクレ−ンを履帯間を
縮幅した状態で示す平面図である。本例のクロ−ラクレ
−ンは前述のクロ−ラクレ−ンに対して検出器１８を旋
回体３のブ−ム４取付け部側に追加して設けたものであ
る。該実施例によれば、片側の履帯９が拡幅状態にあっ
ても他側の履帯９が縮幅状態にあれば、旋回体３が左右
どちらの方向に旋回を開始した場合、旋回直後に旋回検
出器１４または１８が被検出体１５を検出するので、縮
幅の検出がより確実に行える。FIG. 3B is a plan view showing a crawl lane having another embodiment of the crawler belt width reduction detecting device according to the present invention in a state where the crawler belt is narrowed. In the crawl lane of this embodiment, a detector 18 is added to the crawl lane described above on the side of the boom 4 mounting portion of the revolving unit 3. According to the embodiment, if the crawler belt 9 on one side is in the widened state and the crawler belt 9 on the other side is in the narrowed state, when the revolving unit 3 starts to turn in either the left or right direction, it turns immediately after turning. Since the detector 14 or 18 detects the detected object 15, the width reduction can be detected more reliably.
【００１５】図４（Ａ）は本発明による履帯の縮幅検出
装置の他の実施例を備えたクロ−ラクレ−ンを履帯間を
拡幅した状態で示す平面図、同（Ｂ）は履帯間を縮幅し
た状態で示す平面図である。本例は前述の板状の前記被
検出体１５を前後左右に配置した４本の狭い幅の被検出
体２０に変えたものである。本実施例によれば、被検出
体２０の構成が小型となる。なお、本実施例において
は、クロ−ラクレ−ンは旋回検出器１４が被検出体２０
を検出した時点で警報器１６が継続して作動するように
電気回路を構成することにより、運転者に継続的に注意
を促せる。FIG. 4A is a plan view showing a crawl lane having another embodiment of the crawler belt width reduction detecting device according to the present invention in a state in which the crawler belts are widened, and FIG. 4B is between the crawler belts. It is a top view which shows the state which narrowed. In this example, the plate-shaped detection object 15 is replaced with four detection objects 20 having narrow widths arranged in the front, rear, left and right directions. According to the present embodiment, the structure of the detected body 20 becomes small. In the present embodiment, the turning detector 14 is used as the crawl crane to detect the object 20 to be detected.
By configuring the electric circuit so that the alarm device 16 continues to operate when the alarm is detected, the driver can be continuously warned.
【００１６】なお、本発明の履帯の縮幅検出装置は、上
記クロ−ラクレ−ンの他に油圧ショベル等、履帯間の幅
を変えられる構造の走行体を有する他の建設機械に適用
できる。The crawler belt narrowing detection device of the present invention can be applied to other construction machines having a traveling body having a structure in which the width between crawler belts can be changed, in addition to the above-mentioned crawler crane.
【００１７】[0017]
【発明の効果】本発明によれば、走行体の履帯間を縮幅
した状態で旋回体を走行体と向きが一致した位置から旋
回させると、旋回体に設けた旋回検出器がサイドフレ−
ムに設けた被検出体を検出して警報器を作動させるの
で、運転者はこの警報により縮幅を知り、拡幅を行って
から作業を再開することとなり、作業機の転倒事故の発
生を未然に防止することができる。また、被検出体をサ
イドフレ−ムに設け、旋回検出器を旋回体に設けたの
で、旋回検出器から警報器に直接配線でき、走行体から
旋回体へ電気信号を伝えるスリップリングが不要となり
電気回路の構成が簡単で安価に製作できる。According to the present invention, when the revolving structure is swung from the position where the direction of the traveling structure coincides with that of the traveling structure while the crawler belts of the traveling structure are narrowed, the revolving detector provided on the revolving structure causes the side frame to move.
Since the alarm device is activated by detecting the object to be detected provided in the system, the driver knows the width reduction and restarts the work after widening the width. Can be prevented. Also, since the detected object is provided on the side frame and the turning detector is provided on the turning body, the turning detector can be directly wired to the alarm device, and the slip ring for transmitting an electric signal from the traveling body to the turning body is not necessary and the electric The circuit configuration is simple and can be manufactured at low cost.
【図１】（Ａ）は本発明による履帯の縮幅検出装置の一
実施例を備えたクロ−ラクレ−ンを履帯間を拡幅した状
態で示す平面図、（Ｂ）はその正面図である。FIG. 1A is a plan view showing a crawl lane having an embodiment of a crawler belt width reduction detection device according to the present invention in a state where the crawler belt is widened, and FIG. 1B is a front view thereof. .
【図２】（Ａ）は上部の旋回体の向きを変えかつ拡幅状
態で示す該実施例のクローラクレーンの平面図、（Ｂ）
は該実施例のクロ−ラクレ−ンを履帯間を縮幅した状態
で示す平面図である。FIG. 2 (A) is a plan view of the crawler crane of the embodiment showing the upper revolving structure with the orientation thereof changed and widened.
[Fig. 3] is a plan view showing a crawl lane of the embodiment in a state where the crawler belt is narrowed.
【図３】（Ａ）は本発明による履帯の縮幅検出装置の電
気回路図、（Ｂ）は本発明による履帯の縮幅検出装置の
他の実施例を備えたクロ−ラクレ−ンを履帯間を縮幅し
た状態で示す平面図である。FIG. 3A is an electric circuit diagram of a crawler belt width reduction detecting device according to the present invention, and FIG. 3B is a crawler lane provided with another embodiment of the crawler belt width reduction detecting device according to the present invention. It is a top view which shows the state which narrowed the space.
【図４】（Ａ）は本発明による履帯の縮幅検出装置の他
の実施例を備えたクロ−ラクレ−ンを履帯間を拡幅した
状態で示す平面図、（Ｂ）は履帯間を縮幅した状態で示
す平面図である。FIG. 4A is a plan view showing a crawl lane equipped with another embodiment of the crawler belt width reduction device according to the present invention in a state where the crawler belt is widened, and FIG. It is a top view shown in the width state.
【図５】（Ａ）は従来のクロ−ラクレ−ンを履帯間を拡
幅した状態で示す平面図、（Ｂ）は該履帯間を縮幅した
状態で示す平面図である。FIG. 5 (A) is a plan view showing a conventional crawler crane with the crawler belts widened, and FIG. 5 (B) is a plan view with the crawler belts narrowed.
１ 走行体 ２ 旋回装置 ３ 旋回体 ４ ブ−ム ５ センタ−フレ−ム ６ サイドフレ−ム ９ 履帯 １１ 油圧シリンダ １４、１８ 旋回検出器 １５、２０ 被検出体 １６ 警報器 １７ バッテリ− 1 traveling body 2 revolving device 3 revolving body 4 boom 5 center frame 6 side frame 9 crawler belt 11 hydraulic cylinders 14, 18 revolving detector 15, 20 detected body 16 alarm device 17 battery-
Claims (1)
と、該走行体上に設置された旋回体とを有する建設機械
において、前記旋回体に旋回検出器を設けると共に、前
記履帯を装着したサイドフレ−ムに前記旋回検出器を作
動させる被検出体を設け、履帯が縮幅状態にあり、かつ
前記旋回体が所定角度旋回した際に前記旋回検出器を作
動させるように前記旋回検出器および被検出体を配置
し、前記旋回体上の運転室に前記旋回検出器の作動によ
り警報を発する警報器を設けたことを特徴とする履帯の
縮幅検出装置。1. A construction machine having a running body in which the distance between the left and right crawler belts can be expanded and contracted, and a revolving structure installed on the traveling body, and a revolving detector is provided on the revolving structure, and the crawler belt is provided. The mounted side frame is provided with a detected body for operating the turning detector, and the turning detection is performed so as to operate the turning detector when the crawler belt is in a contracted state and the turning body turns a predetermined angle. A device for detecting the width reduction of a crawler track, in which a detector and an object to be detected are arranged, and an alarm device for issuing an alarm by the operation of the turning detector is provided in a driver's cab on the turning body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20714593A JPH0740866A (en) | 1993-07-29 | 1993-07-29 | Contracted width detecting device for crawler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20714593A JPH0740866A (en) | 1993-07-29 | 1993-07-29 | Contracted width detecting device for crawler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0740866A true JPH0740866A (en) | 1995-02-10 |
Family
ID=16534959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20714593A Pending JPH0740866A (en) | 1993-07-29 | 1993-07-29 | Contracted width detecting device for crawler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0740866A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120104828A1 (en) * | 2010-10-27 | 2012-05-03 | Grathwol Kyle E | Can-based system to calculate the weight of milled materials |
| WO2020022297A1 (en) * | 2018-07-25 | 2020-01-30 | 株式会社タダノ | Informing device, work vehicle, and informing method |
-
1993
- 1993-07-29 JP JP20714593A patent/JPH0740866A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120104828A1 (en) * | 2010-10-27 | 2012-05-03 | Grathwol Kyle E | Can-based system to calculate the weight of milled materials |
| WO2020022297A1 (en) * | 2018-07-25 | 2020-01-30 | 株式会社タダノ | Informing device, work vehicle, and informing method |
| JPWO2020022297A1 (en) * | 2018-07-25 | 2020-08-06 | 株式会社タダノ | Notification device, working machine, and notification method |
| CN112424111A (en) * | 2018-07-25 | 2021-02-26 | 株式会社多田野 | Notifying device, work machine, and notifying method |
| US12030749B2 (en) | 2018-07-25 | 2024-07-09 | Tadano Ltd. | Informing device, work vehicle, and informing method |
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