JPH0978621A - Structure of split type boom - Google Patents
Structure of split type boomInfo
- Publication number
- JPH0978621A JPH0978621A JP25703895A JP25703895A JPH0978621A JP H0978621 A JPH0978621 A JP H0978621A JP 25703895 A JP25703895 A JP 25703895A JP 25703895 A JP25703895 A JP 25703895A JP H0978621 A JPH0978621 A JP H0978621A
- Authority
- JP
- Japan
- Prior art keywords
- boom
- rear end
- arm cylinder
- split
- welded
- 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.)
- Granted
Links
Landscapes
- Component Parts Of Construction Machinery (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、油圧ショベルなど
建設機械，作業車両のフロント部に装着している作業ア
タッチメントの分割型ブームの構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a split boom of a work attachment mounted on a front portion of a construction machine such as a hydraulic excavator or a work vehicle.
【０００２】[0002]
【従来の技術】図５は、特開平５−１１６０１０号公報
に記載されている一実施例作業車両の側面図である。図
において、１は車体のフロント部に装着した超ロングタ
イプの作業アタッチメント、２は作業アタッチメント１
の分割型ブーム、３は分割型ブーム２のリアブーム、４
はフロントブーム、５は中継ぎブーム、６はブームシリ
ンダである。図６は、図５における作業アタッチメント
１を降下してＡ部の連結を分離せしめた状態を示す図で
ある。図において、６はリアブーム３の先端部上側ピン
穴、７は先端部下側ピン穴、８は先端部上側ピン穴６の
付近に形成された左右一対の案内用Ｕ字穴、９は中継ぎ
ブーム５の後端部上側ピン穴、１０は後端部下側ピン
穴、１１は後端部上側ピン穴９の付近に左右に突出して
設けた案内ピン、１２は後端部下側ピン穴１０が開穿さ
れている結合ピン嵌挿用ボス、１３は結合ピン嵌挿用ボ
ス１２の後部側に溶着したストッパ、１４はストッパ１
３の当接面部イが当接するリアブーム３の前面側遮へい
板である。図６に示すようにリアブーム３の上側先端部
に案内用Ｕ字穴８を形成し、その案内用Ｕ字穴８に嵌合
する案内ピン１１を中継ぎブーム５に設けるとともに、
その中継ぎブーム５の下側後端部にストッパ１３を設け
ている。したがってリアブーム３前端部と中継ぎブーム
５後端部との連結を行うときには、案内用Ｕ字穴８に案
内ピン１１を嵌合しかつストッパ１３の当接面部を上記
前面側遮へい板１４に当接させた状態で、ピン穴７とピ
ン穴１０、ピン穴６とピン穴９のそれぞれ穴心を自動的
に合致させることができるので、上下２本の結合ピンの
嵌挿を容易に行うことができる。なお分割型ブーム２で
は中継ぎブーム５を使用しないで、リアブーム３の前端
部にフロントブーム４の後端部を連結する場合があるの
で、フロントブーム４の後端部の取付形状及び寸法は、
図６に示す中継ぎブーム５の後端部と同じ取付形状及び
寸法にしている。2. Description of the Related Art FIG. 5 is a side view of a working vehicle according to an embodiment disclosed in Japanese Patent Laid-Open No. 5-111010. In the figure, 1 is a work attachment of a super-long type mounted on the front part of the vehicle body, and 2 is a work attachment 1
Split boom, 3 is split boom 2 rear boom, 4
Is a front boom, 5 is a relay boom, and 6 is a boom cylinder. FIG. 6 is a view showing a state in which the work attachment 1 in FIG. 5 is lowered to separate the connection of the A portion. In the figure, 6 is an upper end pin hole of the rear boom 3, 7 is a lower end pin hole, 8 is a pair of left and right guiding U-shaped holes formed near the upper end pin hole 6, and 9 is a relay boom 5. Rear end upper pin hole, 10 is rear end lower pin hole, 11 is a guide pin protruding left and right near rear end upper pin hole 9, 12 is rear end lower pin hole 10 The connecting pin fitting / inserting boss, 13 is a stopper welded to the rear side of the connecting pin fitting / inserting boss 12, and 14 is the stopper 1
3 is a front side shield plate of the rear boom 3 with which the contact surface portion a of 3 abuts. As shown in FIG. 6, a U-shaped guide hole 8 is formed at the upper end of the rear boom 3, and a guide pin 11 that fits into the U-shaped guide hole 8 is provided on the relay boom 5.
A stopper 13 is provided at the lower rear end of the relay boom 5. Therefore, when connecting the front end of the rear boom 3 and the rear end of the relay boom 5, the guide pin 11 is fitted in the guide U-shaped hole 8 and the contact surface of the stopper 13 contacts the front side shield plate 14. In this state, the pin holes 7 and 10 and the pin holes 6 and 9 can be automatically aligned with each other, so that the upper and lower two coupling pins can be easily fitted and inserted. it can. The split boom 2 may connect the front end of the rear boom 3 to the rear end of the front boom 4 without using the intermediate boom 5, so the mounting shape and dimensions of the rear end of the front boom 4 are as follows.
It has the same mounting shape and dimensions as the rear end of the relay boom 5 shown in FIG.
【０００３】[0003]
【発明が解決しようとする課題】図５に示す作業アタッ
チメント１は超ロングタイプに構成しているので、分割
形ブーム２とアーム１５との間にインタブーム１６を介
設している。そのために第１のアームシリンダ１７と第
２のアームシリンダ１８をそなえている。また特開平５
−１１６０１０号公報には記載されていないが、図７は
図５におけるフロントブーム４の拡大詳細図である。図
において、フロントブーム４の後端部の取付形状及び寸
法は中継ぎブーム５と同じにしているので、フロントブ
ーム４後端部の構成要素の符号は中継ぎブーム５と同符
号にする。図７に示すようにアームシリンダ１７基端部
取付用のブラケット１９は、結合ピン嵌挿用ボス１２よ
り隔離した前方の位置で、下面板２０に対して溶接して
ある。そしてフロントブーム４の内部側に補強用の隔壁
板２１，２２を設けているが、その隔壁板２１，２２、
及び下面板２１の内部側は空洞状態である。したがっ
て、ブラケット１９のアームシリンダ１７保持力が十分
であるとは云えなかった。本発明は、フロントブームの
後端基部の大なる強度の構造を用いることによってアー
ムシリンダ保持力を向上できる分割型ブームの構造を提
供することを目的とする。Since the work attachment 1 shown in FIG. 5 is of a super long type, an inter-boom 16 is provided between the split boom 2 and the arm 15. Therefore, the first arm cylinder 17 and the second arm cylinder 18 are provided. In addition, JP-A-5
7 is an enlarged detailed view of the front boom 4 shown in FIG. In the drawing, the mounting shape and dimensions of the rear end of the front boom 4 are the same as those of the relay boom 5, so that the reference numerals of the components of the rear end of the front boom 4 are the same as those of the relay boom 5. As shown in FIG. 7, the bracket 19 for mounting the base end portion of the arm cylinder 17 is welded to the lower surface plate 20 at a position separated from the coupling pin fitting and inserting boss 12. The partition walls 21 and 22 for reinforcement are provided on the inner side of the front boom 4, and the partition plates 21 and 22,
The inner side of the lower plate 21 is hollow. Therefore, it cannot be said that the holding force of the arm cylinder 17 of the bracket 19 is sufficient. An object of the present invention is to provide a structure of a split type boom capable of improving the arm cylinder holding force by using a structure having a large strength at the rear end base of the front boom.
【０００４】[0004]
【課題を解決するための手段】本発明では、車体のフロ
ント部にブーム、アーム、作業工具を前後回動可能に順
次連結し、また上記ブームをリアブームとフロントブー
ムに分離可能に形成し、上記リアブームの前端部と、フ
ロントブームの後端部との間に所要に応じて中継ぎブー
ムを継ぎ足すことができるようにし、またフロントブー
ムの下面部と、アームの下面部との間にアームシリンダ
を配設している作業アタッチメントにおいて、フロント
ブームの後端基部に近接してアームシリンダ取付用ブラ
ケットを溶接した。また上記後端基部の内部側に、上下
２箇所の結合ピン嵌挿用ボスと、左右の側面板にわたる
側面視湾曲状の隔壁板を溶接し、また上記後端基部の下
面部より後端面部、上面部より後端面部にわたるそれぞ
れ補強用重ね板を溶接した。また本発明では、上記後端
基部に連結する中継ぎブーム又はリアブームに対する位
置決め用のストッパを、上記アームシリンダ取付用ブラ
ケットと一体形に形成した。According to the present invention, a boom, an arm, and a work tool are sequentially connected to a front portion of a vehicle body so that the boom can be rotated back and forth, and the boom can be separated into a rear boom and a front boom. If necessary, an intermediate boom can be added between the front end of the rear boom and the rear end of the front boom, and an arm cylinder can be installed between the lower surface of the front boom and the lower surface of the arm. In the work attachment provided, the arm cylinder mounting bracket was welded near the rear end base of the front boom. On the inner side of the rear end base portion, two upper and lower connecting pin fitting bosses and a partition wall plate curved in a side view extending to the left and right side surface plates are welded. The reinforcing laminated plates extending from the upper surface portion to the rear end surface portion were welded. Further, according to the present invention, the positioning stopper for the relay boom or the rear boom connected to the rear end base is formed integrally with the arm cylinder mounting bracket.
【０００５】本発明におけるフロントブームの後端基部
では上下２箇所の結合ピン嵌挿用ボスと、左右の側面板
にわたって側面視湾曲状の隔壁板を溶接し、しかも後端
基部の下面部より後端面部、上面部より後端面部にわた
ってそれぞれ補強用重ね板を溶接するので、上記後端基
部を大なる強度を有する構造にすることができる。その
大なる構造強度を有する後端基部の下側の結合ピン嵌挿
用ボスに近接してアームシリンダ取付用ブラケットを溶
接したので、そのアームシリンダ取付用ブラケットのア
ームシリンダ保持力を向上させることができる。また本
発明では、上記フロントブームの後部側の位置決め用の
ストッパを上記アームシリンダ取付用ブラケットと一体
形に形成したので、そのブラケットとストッパの形成を
簡素化してかつその強度を向上するとともに、ストッパ
の溶接工数を低減することができる。In the rear end base part of the front boom of the present invention, two upper and lower connecting pin fitting bosses and a partition wall plate curved in a side view are welded over the left and right side plate parts, and the rear end part of the rear end base part is located behind the lower surface part. Since the reinforcing laminated plates are welded from the end surface portion and the upper surface portion to the rear end surface portion, the rear end base portion can have a structure having great strength. Since the arm cylinder mounting bracket was welded close to the lower coupling pin fitting boss having the large structural strength, the arm cylinder holding force of the arm cylinder mounting bracket can be improved. it can. Further, in the present invention, since the positioning stopper on the rear side of the front boom is formed integrally with the arm cylinder mounting bracket, the formation of the bracket and the stopper is simplified and the strength thereof is improved, and the stopper is The welding man-hour can be reduced.
【０００６】[0006]
【発明の実施の形態】以下、本発明の実施例を図面に基
いて詳細に説明する。図１は、本発明の分割型ブーム
（全体図は図示していない）のフロントブーム２３を示
す側面図である。図において、２４はフロントブーム２
３の後端基部、２５は上面部、２６は下面板、２７L ，
２７R は左右の側面板（右側面板２７R は左側面板２７
L の向う側にあるので図示では見えない）、２８は上側
の結合ピン嵌挿用ボス、２９は下側の結合ピン嵌挿用ボ
ス、３０は図示していない中継ぎブーム又はリアブーム
に形成した案内用Ｕ字穴に嵌合する案内ピン、３１はア
ームシリンダ取付用ブラケット、３２はアームシリンダ
取付用ブラケット３１と一体形に形成したストッパ、符
号ロはストッパ３２の当接面部である。図２は、図１の
Ｂ部拡大図である。図において、３３，３４はそれぞれ
隔壁板、３５，３６はそれぞれ補強用重ね板である。図
３は、図１のＣより見た平面図である。図４は、図２の
Ｄより見た後面図である。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view showing a front boom 23 of a split type boom (not shown in the overall view) of the present invention. In the figure, 24 is the front boom 2.
3 rear end base, 25 upper surface, 26 lower plate, 27 L ,
27 R is the left and right side plates (the right side plate 27 R is the left side plate 27
Since it is on the opposite side of L , it is not visible in the drawing), 28 is an upper connecting pin fitting boss, 29 is a lower connecting pin fitting boss, and 30 is a guide formed on a relay boom or rear boom not shown. A guide pin fitted into the U-shaped hole, 31 is an arm cylinder mounting bracket, 32 is a stopper integrally formed with the arm cylinder mounting bracket 31, and reference numeral B is a contact surface portion of the stopper 32. FIG. 2 is an enlarged view of a portion B in FIG. In the figure, 33 and 34 are partition plates, and 35 and 36 are reinforcing stack plates. FIG. 3 is a plan view seen from C in FIG. FIG. 4 is a rear view seen from D in FIG.
【０００７】次に、本発明の分割型ブームの構造を図１
〜図４について述べる。本発明では、分割型ブーム（全
体図を図示していない）の構成要素であるフロントブー
ム２３の後端基部２４に近接してアームシリンダ取付用
ブラケット３１を溶接した。また上記後端基部２４の内
部側に、上下２箇所の結合ピン嵌挿用ボス２８，２９
と、左右の側面板２７L ，２７R にわたる側面視湾曲状
（屈曲状なども含む）の隔壁板３３を溶接し、また上記
後端基部２４の下面部より後端面部にわたる補強用重ね
板３５と、上面部より後端面部にわたる補強用重ね板３
６をそれぞれ溶接した。また本発明では、上記後端基部
２４に連結する中継ぎブーム又はリアブーム（図示して
いない）に対する位置決め用のストッパ３２を、上記ア
ームシリンダ取付用ブラケット３１と一体形に形成し
た。Next, the structure of the split boom of the present invention is shown in FIG.
~ Referring to FIG. In the present invention, the arm cylinder mounting bracket 31 is welded near the rear end base portion 24 of the front boom 23, which is a component of the split boom (not shown in the overall view). Further, on the inner side of the rear end base portion 24, coupling pin fitting bosses 28, 29 at two upper and lower positions are provided.
And a partition wall plate 33 having a curved shape (including a bent shape) in a side view extending over the left and right side plates 27 L and 27 R , and reinforcing reinforcing laminated plate 35 extending from the lower surface portion of the rear end base portion 24 to the rear end surface portion. And the reinforcing laminated plate 3 extending from the upper surface to the rear end surface
6 were welded together. Further, according to the present invention, the stopper 32 for positioning the intermediate boom or the rear boom (not shown) connected to the rear end base portion 24 is formed integrally with the arm cylinder mounting bracket 31.
【０００８】次に、本発明の分割型ブームの作用につい
て述べる。本発明ではフロントブーム２３の後端基部２
４の内部側に、上下２箇所の結合ピン嵌挿用ボス２８，
２９と、左右の側面板２７L ，２７R にわたる側面視湾
曲状の隔壁板３３を溶接し、また上記後端基部２４の下
面部より後端面部、上面部より後端面部にわたる補強用
重ね板３５，３６をそれぞれ溶接するので、上記後端基
部２４を大なる強度を有する構造にすることができる。
その大なる構造強度を有する後端基部２４の下側の結合
ピン嵌挿用ボス２９に近接してアームシリンダ取付用ブ
ラケット３１を溶接したので、そのアームシリンダ取付
用ブラケット３１のアームシリンダ保持力を向上させる
ことができる。また本発明では、上記後端基部２４の後
部側の位置決め用のストッパ３２を上記アームシリンダ
取付用ブラケット３１と一体形に形成したので、そのブ
ラケットとストッパの形成を簡素化してかつその強度を
向上するとともに、ストッパ３２の溶接工数を低減する
ことができる。Next, the operation of the split boom of the present invention will be described. In the present invention, the rear end base 2 of the front boom 23
On the inner side of 4, there are two upper and lower connecting pin fitting bosses 28,
29 and the partition plates 33 having a curved shape in a side view extending over the left and right side plates 27 L and 27 R , and a reinforcing laminated plate extending from the lower surface portion of the rear end base portion 24 to the rear end surface portion and from the upper surface portion to the rear end surface portion. Since 35 and 36 are welded to each other, the rear end base portion 24 can have a structure having great strength.
Since the arm cylinder mounting bracket 31 is welded in the vicinity of the lower coupling pin fitting boss 29 having the great structural strength, the arm cylinder holding force of the arm cylinder mounting bracket 31 is increased. Can be improved. Further, in the present invention, since the positioning stopper 32 on the rear side of the rear end base 24 is formed integrally with the arm cylinder mounting bracket 31, the formation of the bracket and the stopper is simplified and the strength thereof is improved. In addition, the number of man-hours for welding the stopper 32 can be reduced.
【０００９】[0009]
【発明の効果】本発明の分割型ブームではフロントブー
ムの後端基部の内部側に、上下２箇所の結合ピン嵌挿用
ボスと、左右の側面板にわたって側面視湾曲状の隔壁板
を溶接し、しかも後端基部の下面部より後端面部、上面
部より後端面部にわたってそれぞれ補強用重ね板を溶接
したので、上記後端基部を大なる強度を有する構造にす
ることができた。その大なる構造強度を有する後端基部
の下側の結合ピン嵌挿用ボスに近接してアームシリンダ
取付用ブラケットを溶接したので、そのアームシリンダ
取付用ブラケットのアームシリンダ保持力を向上させる
ことができる。また本発明では、上記フロントブームの
後部側の位置決め用のストッパを上記アームシリンダ取
付用ブラケットと一体形に形成したので、そのブラケッ
トとストッパの形成を簡素化してかつその強度を向上す
るとともに、ストッパの溶接工数を低減することができ
る。In the split type boom of the present invention, the connecting pin fitting bosses at the two upper and lower positions and the partition plate curved in the side view are welded to the inside of the rear end base of the front boom. Moreover, since the reinforcing laminated plates are welded to the rear end base portion from the lower surface portion to the rear end surface portion and from the upper surface portion to the rear end surface portion, the rear end base portion can have a structure having great strength. Since the arm cylinder mounting bracket was welded close to the lower coupling pin fitting boss having the large structural strength, the arm cylinder holding force of the arm cylinder mounting bracket can be improved. it can. Further, in the present invention, since the positioning stopper on the rear side of the front boom is formed integrally with the arm cylinder mounting bracket, the formation of the bracket and the stopper is simplified and the strength thereof is improved, and the stopper is The welding man-hour can be reduced.
【図１】本発明におけるフロントブームの側面図であ
る。FIG. 1 is a side view of a front boom according to the present invention.
【図２】図１のＢ部拡大図である。FIG. 2 is an enlarged view of part B in FIG.
【図３】図１のＣより見た平面図である。FIG. 3 is a plan view seen from C in FIG.
【図４】図２のＤより見た後面図である。FIG. 4 is a rear view seen from D in FIG.
【図５】従来技術の一実施例作業車両の側面図である。FIG. 5 is a side view of a working vehicle according to an embodiment of the prior art.
【図６】図１におけるＡ部の連結を分離せしめた状態を
示す図である。FIG. 6 is a diagram showing a state in which the connection of section A in FIG. 1 is separated.
【図７】図５におけるフロントブームの拡大詳細図であ
る。FIG. 7 is an enlarged detailed view of the front boom in FIG.
１ 作業アタッチメント ２ 分割型ブーム ３ リアブーム ４，２３ フロントブーム ５ 中継ぎブーム １２，２８，２９ 結合ピン嵌挿用ボス １３，３２ ストッパ １７，１８ アームシリンダ １９，３１ （アームシリンダ取付用）ブラケット ２０，２６ 下面板 ２１，２２，３３，３４ 隔壁板 ２４ 後端基部 ２５ 上面板 ２７L ，２７R 側面板 ３５，３６ 補強用重ね板1 Work Attachment 2 Split Boom 3 Rear Boom 4,23 Front Boom 5 Intermediary Boom 12, 28, 29 Connecting Pin Fitting Boss 13, 32 Stopper 17, 18 Arm Cylinder 19, 31 (For Arm Cylinder Mounting) Bracket 20, 26 Bottom plate 21, 22, 33, 34 Partition plate 24 Rear end base 25 Top plate 27 L , 27 R Side plate 35, 36 Reinforcing stack plate
Claims (5)
業工具を前後回動可能に順次連結し、また上記ブームを
リアブームとフロントブームに分離可能に形成し、上記
リアブームの前端部と、フロントブームの後端部との間
に所要に応じて中継ぎブームを継ぎ足すことができるよ
うにし、またフロントブームの下面部と、アームの下面
部との間にアームシリンダを配設している作業アタッチ
メントにおいて、フロントブームの後端基部に近接して
アームシリンダ取付用ブラケットを溶接したことを特徴
とする分割型ブームの構造。1. A boom, an arm, and a work tool are sequentially connected to a front portion of a vehicle body so as to be rotatable front and back, and the boom is separably formed into a rear boom and a front boom, and a front end portion of the rear boom and a front boom are formed. In a work attachment in which an intermediate boom can be added to the rear end of the arm as required, and an arm cylinder is arranged between the lower surface of the front boom and the lower surface of the arm. The structure of the split boom is characterized in that the arm cylinder mounting bracket is welded near the rear end base of the front boom.
ームの構造において、前記フロントブームの後端基部の
内部側に、上下２箇所の結合ピン嵌挿用ボスと、左右の
側面板にわたる側面視湾曲状の隔壁板を溶接したことを
特徴とする分割型ブームの構造。2. The structure of the split boom according to claim 1, wherein two upper and lower connecting pin fitting bosses and left and right side plates are provided inside the rear end base of the front boom. A split boom structure characterized by welding a bulkhead plate curved in a side view.
ームの構造において、前記フロントブームの後端基部の
下面部より後端面部にわたる補強用重ね板を溶接したこ
とを特徴とする分割型ブームの構造。3. The structure of the split type boom according to claim 1, wherein a reinforcing stacking plate is welded from a lower surface portion of the rear end base portion of the front boom to a rear end surface portion thereof. Boom structure.
ームの構造において、前記フロントブームの後端基部の
上面部より後端面部にわたる補強用重ね板を溶接したこ
とを特徴とする分割型ブームの構造。4. The split boom structure according to claim 3, wherein a reinforcing stacking plate is welded from the upper surface portion of the rear end base portion of the front boom to the rear end surface portion thereof. Boom structure.
分割型ブームの構造において、前記フロントブームの後
端基部に連結する中継ぎブーム又はリアブームに対する
位置決め用のストッパを、前記アームシリンダ取付用ブ
ラケットと一体形に形成したことを特徴とする分割型ブ
ームの構造。5. The split boom structure according to any one of claims 1 to 4, wherein a positioning stopper for a relay boom or a rear boom connected to a rear end base of the front boom is attached to the arm cylinder. The structure of the split type boom, which is characterized in that it is formed integrally with the bracket for the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25703895A JP3508795B2 (en) | 1995-09-08 | 1995-09-08 | Split boom structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25703895A JP3508795B2 (en) | 1995-09-08 | 1995-09-08 | Split boom structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0978621A true JPH0978621A (en) | 1997-03-25 |
| JP3508795B2 JP3508795B2 (en) | 2004-03-22 |
Family
ID=17300887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25703895A Expired - Fee Related JP3508795B2 (en) | 1995-09-08 | 1995-09-08 | Split boom structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3508795B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006274589A (en) * | 2005-03-28 | 2006-10-12 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | End attachment mounting device for construction machine |
| JP2009062712A (en) * | 2007-09-05 | 2009-03-26 | Komatsu Ltd | Working machine member |
| US7565758B2 (en) * | 2005-05-16 | 2009-07-28 | Poire Denis | Quick attach coupling device |
| JP2009263995A (en) * | 2008-04-25 | 2009-11-12 | Hitachi Constr Mach Co Ltd | Transport device for boom |
| EP2426275A3 (en) * | 2006-01-13 | 2015-03-04 | John R. Ramun | Modular system for connecting attachments to a construction machine |
| WO2017001287A1 (en) * | 2015-06-29 | 2017-01-05 | Caterpillar Sarl | Reinforcement structure for boom of work machine |
| CN106988359A (en) * | 2017-05-22 | 2017-07-28 | 徐工集团工程机械股份有限公司 | A kind of Hydraulic Excavator's Boom dipper tube-in-tube structure |
-
1995
- 1995-09-08 JP JP25703895A patent/JP3508795B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006274589A (en) * | 2005-03-28 | 2006-10-12 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | End attachment mounting device for construction machine |
| US7565758B2 (en) * | 2005-05-16 | 2009-07-28 | Poire Denis | Quick attach coupling device |
| EP2426275A3 (en) * | 2006-01-13 | 2015-03-04 | John R. Ramun | Modular system for connecting attachments to a construction machine |
| JP2009062712A (en) * | 2007-09-05 | 2009-03-26 | Komatsu Ltd | Working machine member |
| JP2009263995A (en) * | 2008-04-25 | 2009-11-12 | Hitachi Constr Mach Co Ltd | Transport device for boom |
| WO2017001287A1 (en) * | 2015-06-29 | 2017-01-05 | Caterpillar Sarl | Reinforcement structure for boom of work machine |
| JP2017014732A (en) * | 2015-06-29 | 2017-01-19 | キャタピラー エス エー アール エル | Reinforcement structure of boom of work machine |
| US10767340B2 (en) | 2015-06-29 | 2020-09-08 | Caterpillar Sarl | Reinforcement structure for boom of work machine |
| CN106988359A (en) * | 2017-05-22 | 2017-07-28 | 徐工集团工程机械股份有限公司 | A kind of Hydraulic Excavator's Boom dipper tube-in-tube structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3508795B2 (en) | 2004-03-22 |
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