JP2809260B2 - Connector for construction work machine - Google Patents

Connector for construction work machine

Info

Publication number
JP2809260B2
JP2809260B2 JP5081177A JP8117793A JP2809260B2 JP 2809260 B2 JP2809260 B2 JP 2809260B2 JP 5081177 A JP5081177 A JP 5081177A JP 8117793 A JP8117793 A JP 8117793A JP 2809260 B2 JP2809260 B2 JP 2809260B2
Authority
JP
Japan
Prior art keywords
main
locking
rod
lock
locking rod
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
Application number
JP5081177A
Other languages
Japanese (ja)
Other versions
JPH06272275A (en
Inventor
誠一 坂戸
信夫 渡辺
智昭 山田
邦彦 松居
勇 永吉
利之 久野
正幸 浅井
利文 戸嶋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sakato Kosakusho KK
Original Assignee
Sakato Kosakusho KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sakato Kosakusho KK filed Critical Sakato Kosakusho KK
Priority to JP5081177A priority Critical patent/JP2809260B2/en
Publication of JPH06272275A publication Critical patent/JPH06272275A/en
Application granted granted Critical
Publication of JP2809260B2 publication Critical patent/JP2809260B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3627—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a longitudinal locking element
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3645—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with auto-engagement means for automatic snap-on of the tool coupler part
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/365—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with redundant latching means, e.g. for safety purposes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】本発明は、油圧ショベル等の作業
用ブームを有する建設用車両のブーム先端に破砕機，バ
ケット等の種々の作業用アタッチメントを簡易且つ迅速
に取り付けたり、或いは外したりすることができる建設
作業機械用連結具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction vehicle having a working boom, such as a hydraulic shovel, for easily and quickly attaching or detaching various working attachments such as crushers and buckets to and from a boom tip. The present invention relates to a connection tool for a construction work machine that can be used.

【０００２】[0002]

【従来の技術】従来より、油圧ショベル等の作業用ブー
ムを有する建設用車両のブーム先端に破砕機，バケット
等の種々の作業用アタッチメントを取り付けたり、或い
は外したりするために連結具が使用されている。2. Description of the Related Art Hitherto, a connecting tool has been used for attaching or detaching various work attachments such as a crusher, a bucket, etc. to a boom tip of a construction vehicle having a work boom such as a hydraulic shovel. ing.

【０００３】その連結具の主なる構造としては、連結具
が建設作業用ブーム先端側に装着するブーム側連結具
と、バケット，破砕機等のアタッチメント側に装着する
アタッチメント側連結具の二部材から構成されるもので
あって、そのブーム側連結具とアタッチメント側連結具
とが軸とこれに係合する可動式の鉤状の爪とからなり、
ブーム側の操作により爪が適宜に動いて軸に係合するも
のとなっている。[0003] The main structure of the connecting device is composed of two members: a boom-side connecting device that is mounted on the front end side of the construction boom, and an attachment-side connecting device that is mounted on an attachment side such as a bucket or a crusher. The boom-side connector and the attachment-side connector comprise a shaft and a movable hook-shaped claw that engages with the shaft,
The operation of the boom causes the pawl to appropriately move and engage with the shaft.

【０００４】その爪は、油圧シリンダ或いはスプリング
により可動するものが多く、特に油圧シリンダはブーム
側と連動している。Many of the claws are movable by a hydraulic cylinder or a spring. In particular, the hydraulic cylinder is interlocked with the boom side.

【０００５】[0005]

【発明が解決しようとする課題】上記連結具の多くは、
ブーム側連結具とアタッチメント側連結具とのいずれか
に爪を形成し、他方に軸を設け、その爪を相手側の軸に
係止するものであるが、このような構造によれば、ブー
ム側連結具とアタッチメント側連結具とが確実に連結し
たか否かを確認するためには、建設用車両の運転席から
では確認することが極めて困難であり、確認するための
作業員が必要となる。SUMMARY OF THE INVENTION Many of the above couplers are
A claw is formed on one of the boom-side connection tool and the attachment-side connection tool, and a shaft is provided on the other, and the claw is locked on a shaft on the other side. It is extremely difficult to check from the driver's seat of the construction vehicle to confirm whether the side connection tool and the attachment side connection tool are securely connected, and an operator is required to check. Become.

【０００６】さらに、また上述のように可動式の爪と軸
による係止においては、その係止状態が極めて緩くなり
がちであり、それゆえに振動、衝撃に対して極めて弱
く、作業中においてアタッチメントがブームから外れて
しまう危険性も充分ある。Further, as described above, in the locking by the movable claw and the shaft, the locking state tends to be extremely loose, and therefore, it is extremely weak against vibrations and impacts, and the attachment may not work during work. There is also a danger of falling off the boom.

【０００７】さらに、上記爪は、油圧機構により動かす
タイプのものも存在し、この場合には、確かに油圧によ
る強力な連結が可能となるが、装置全体が複雑となり、
従って極めて高価となるのみならず、一端油圧機構が故
障したときには、即座に修理が出来ない等の不都合な問
題があった。[0007] Further, there is a type in which the above-mentioned claw is moved by a hydraulic mechanism. In this case, a strong connection by hydraulic pressure is certainly possible, but the whole apparatus becomes complicated,
Therefore, not only is it extremely expensive, but also there is an inconvenience in that when the hydraulic mechanism fails, it cannot be repaired immediately.

【０００８】[0008]

【課題を解決するための手段】そこで、発明者は、上記
課題を解決すべく、鋭意研究を重ねた結果、本発明を、
弾性体にて付勢したロック用ロッドと該ロック用ロッド
の軸方向後部をロック用ロッドの軸方向に移動自在な解
除用油圧ロッドに連結してなるロック解除手段と設けた
主連結体と、被連結体とからなり、主連結体と被連結体
との接触にてロック用ロッド先端が被連結体Ｂ側に突出
且つ貫通して弾発結合してなる建設作業機械用連結具と
したことにより、油圧ショベル等の作業用ブームを有す
る建設用車両のブーム先端に破砕機，バケット等の種々
の作業用アタッチメントを簡易且つ迅速に取り付けた
り、或いは外したりすることができ、且つその取付状態
を極めて強固なるものにすることができ、上記課題を解
決したものである。Means for Solving the Problems Therefore, the inventor has conducted intensive studies to solve the above-mentioned problems, and as a result, the present invention
A locking rod urged by an elastic body, and a main connecting body provided with unlocking means connecting an axial rear portion of the locking rod to an unlocking hydraulic rod movable in the axial direction of the locking rod; A connecting member for a construction work machine comprising a body to be connected, wherein a tip of a locking rod protrudes toward the body to be connected B and penetrates and elastically couples in contact with the main body and the body to be connected. Thereby, various work attachments such as a crusher and a bucket can be easily and quickly attached to or detached from the end of a boom of a construction vehicle having a work boom such as a hydraulic shovel, and the attached state can be changed. It can be made extremely strong, and has solved the above-mentioned problems.

【０００９】[0009]

【実施例】以下、本発明の実施例を図面に基づいて説明
すると、本発明は主連結体Ａと被連結体Ｂとから構成さ
れるものであって、その主連結体Ａはショベル等の建設
用車両の建設作業用のブームｂ先端に装着され、被連結
体Ｂは掘削用バケット，破砕機等のアタッチメントａ側
に装着され、ブームｂとアタッチメントａとの連結を主
連結体Ａと被連結体Ｂとを介して行うものである。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. The present invention comprises a main body A and a body B to be connected, and the main body A is a shovel or the like. The connected object B is mounted on the attachment a side of a digging bucket, a crusher, etc., and the connection between the boom b and the attachment a is connected to the main connected body A with the main connected body A. This is performed through the connection body B.

【００１０】その主連結体Ａは、図１等に示すように、
主基板１の一側面にロック用ロッドＡ1 等が装着され、
他側面には建設用車両のブームｂ先端に装着する主装着
部１４が形成されている。[0010] As shown in FIG.
A locking rod A1 is mounted on one side of the main board 1,
On the other side, a main mounting portion 14 to be mounted on the tip of the boom b of the construction vehicle is formed.

【００１１】そのロック用ロッドＡ1 は、図１及び図３
等に示すように、円筒形状のロック頭部２と、該ロック
頭部２よりも大径なる円筒形状の停止用鍔３と、該停止
用鍔３より小径なるガイド筒部４とから構成されてい
る。The locking rod A1 is shown in FIGS.
As shown in FIG. 2, the lock head 2 includes a cylindrical lock head 2, a cylindrical stop flange 3 having a larger diameter than the lock head 2, and a guide cylinder 4 having a smaller diameter than the stop flange 3. ing.

【００１２】ロック用ロッドＡ1 は、軸方向が主基板１
の面上と略平行で、且つ軸方向に摺動自在となるように
ガイド体６にて支持され、該ガイド体６にはガイド貫通
孔６ａが形成されており、前記ロック用ロッドＡ1 のガ
イド筒部４が摺動自在に挿入されている。The locking rod A1 has an axial direction of the main substrate 1.
The guide rod 6 is supported by a guide body 6 so as to be slidable in the axial direction substantially in parallel with the surface of the lock rod A. A guide through hole 6a is formed in the guide body 6, and the guide rod 6 guides the lock rod A1. The tube part 4 is slidably inserted.

【００１３】ロック用ロッドＡ1 は、上記ガイド体６の
支持により軸方向に往復動作ができる構成としたもので
あり、そのロック用ロッドＡ1 のガイド筒部４の外周に
は、図１，図３に示すように、コイルスプリング等の弾
性体７が備えられ、該弾性体７の長手方向一端がガイド
体６に当接し、他端が停止用鍔３に当接して、該停止用
鍔３が弾性体７の弾性力にて常時押圧されるものであ
る。The locking rod A1 is configured to be capable of reciprocating in the axial direction by the support of the guide body 6, and the outer periphery of the guide cylindrical portion 4 of the locking rod A1 is shown in FIGS. As shown in FIG. 5, an elastic body 7 such as a coil spring is provided, one end of the elastic body 7 in the longitudinal direction abuts the guide body 6 and the other end abuts on the stop flange 3. It is always pressed by the elastic force of the elastic body 7.

【００１４】そのガイド体６には、係止用アーム８が回
動自在にピン等にて枢支されており、該枢支個所を枢支
点８ｐと称する。その係止用アーム８は、図１，図５等
に示すように、長手方向の端部側に切欠き形状の係止用
凹部８ａが形成され、該係止用凹部８ａがロック用ロッ
ドＡ1 に設けた被係止部５に係止し、ロック用ロッドＡ
1 を前記弾性体７の弾性力に抗して、所定位置に停止さ
せておくものである。The guide body 6 has a locking arm 8 pivotally supported by a pin or the like so as to be freely rotatable, and this pivot point is referred to as a pivot point 8p. As shown in FIGS. 1, 5 and the like, the locking arm 8 has a notch-shaped locking concave portion 8a formed at the end in the longitudinal direction, and the locking concave portion 8a is formed with a locking rod A1. The locking rod A is locked to the locked portion 5 provided on the
1 is stopped at a predetermined position against the elastic force of the elastic body 7.

【００１５】また、前記係止用アーム８には、その長手
方向の適宜の個所に被当接部８ｂが形成され、該被当接
部８ｂが外部より押圧されることにより、係止用アーム
８が枢支点８ｐを中心に回動し、ロック用ロッドＡ1 の
被係止部５から外れ、弾性体７の弾性力にて軸方向に移
動し、前記被連結体Ｂとの連結が行われる。The engaging arm 8 has an abutting portion 8b formed at an appropriate position in the longitudinal direction thereof, and the abutting portion 8b is pressed from the outside, whereby the engaging arm 8b is pressed. 8 rotates around the pivot point 8p, disengages from the locked portion 5 of the locking rod A1, moves in the axial direction by the elastic force of the elastic body 7, and is connected to the connected body B. .

【００１６】前記被当接部８ｂは図１等に示すように、
係止用アーム８の適宜の個所から突起状に形成され、後
述する被連結体Ｂの解除用押上部１７が当接且つ押圧す
るようになっている。As shown in FIG. 1 and the like, the contacted portion 8b
Protrusions are formed from appropriate locations of the locking arm 8 so that a release push-up portion 17 of the connected body B, which will be described later, contacts and presses.

【００１７】その係止用アーム８は、主基板１との間
に、図１，図３等に示すように、係止用バネ９が設けら
れ、該係止用バネ９により、係止用アーム８の係止用凹
部８ａがロック用ロッドＡ1 の被係止部５に押圧状態に
て係止することができるように常時付勢されている。The locking arm 8 is provided with a locking spring 9 between the main board 1 and the main board 1, as shown in FIGS. The locking recess 8a of the arm 8 is always urged so as to be able to lock the locked portion 5 of the locking rod A1 in a pressed state.

【００１８】上記のロック用ロッドＡ1 等の主基板１上
に設けられた装置は、図２に示すように、被覆体Ａ3 に
て被覆保護されており、具体的には被覆体Ａ3 は立方体
箱形状に形成された筺体部１０がロック用ロッドＡ1 等
を覆うようにして主基板１上に形成されるものであっ
て、その筺体部１０には、図１，図３及び図５等に示す
ように、ロック頭部２が摺動自在となるようにロック頭
部ガイド貫通孔１１が形成されている。As shown in FIG. 2, the device provided on the main substrate 1 such as the above-mentioned locking rod A1 is covered and protected by a cover A3. Specifically, the cover A3 is a cubic box. A casing 10 formed in a shape is formed on the main substrate 1 so as to cover the locking rod A1 and the like, and the casing 10 has a casing 10 as shown in FIGS. Thus, the lock head guide through-hole 11 is formed so that the lock head 2 is slidable.

【００１９】さらに、筺体部１０のロック頭部ガイド貫
通孔１１が形成された側壁板には、図１等に示すよう
に、後述する被連結体Ｂのロック用連結板１６が遊挿自
在となる偏平挿入用溝１２が形成されている。Further, as shown in FIG. 1 and the like, a locking connecting plate 16 of a connected body B, which will be described later, is freely inserted into the side wall plate of the housing 10 where the lock head guide through-hole 11 is formed. The flat insertion groove 12 is formed.

【００２０】また、筺体部１０の頂部板上には、解除用
貫通孔１３が形成され、該解除用貫通孔１３の形成個所
に対応する位置に前記係止用アーム８の被当接部８ｂが
存在し、その解除用貫通孔１３を介して被連結体Ｂの解
除用押上部１７が挿入して係止用アーム８の被当接部８
ｂを押圧可能な構造となっている。A release through-hole 13 is formed on the top plate of the housing 10, and the contacting portion 8b of the locking arm 8 is located at a position corresponding to the location where the release through-hole 13 is formed. The release push-up portion 17 of the connected body B is inserted through the release through-hole 13 so that the contact portion 8 of the locking arm 8 is
b can be pressed.

【００２１】その主連結体Ａの主基板１には、前述した
ように、主装着部１４が設けられており、具体的には、
図２に示すように、主装着部１４は主基板１の幅方向両
側端に装着板１４ａ，１４ａが形成され、該装着板１４
ａ，１４ａには装着孔１４ｂ，１４ｂが形成されたもの
であって、ブームｂ先端に装着するときには、連結用軸
をその装着孔１４ｂ，１４ｂに貫通させてブームｂ先端
に装着されるものである。As described above, the main mounting portion 14 is provided on the main board 1 of the main connector A.
As shown in FIG. 2, the main mounting portion 14 has mounting plates 14 a, 14 a formed at both ends in the width direction of the main substrate 1.
The mounting holes 14b, 14b are formed in the mounting holes 14b, 14b. The mounting shaft is mounted on the end of the boom b by passing the connecting shaft through the mounting holes 14b, 14b. is there.

【００２２】次に、被連結体Ｂでは従基板１５の一側面
上にロック用連結板１６が形成され、該ロック用連結板
１６には前記ロック用ロッドＡ1 のロック頭部２が挿入
自在となるロック用連結孔１６ａが形成されている。Next, in the connected object B, a locking connecting plate 16 is formed on one side surface of the slave substrate 15, and the locking head 2 of the locking rod A1 is freely inserted into the locking connecting plate 16. Locking connection hole 16a is formed.

【００２３】具体的には、被連結体Ｂと主連結体Ａとを
適正な連結状態としたときに、そのロック用連結板１６
が、図３に示すように、ロック用ロッドＡ1 の軸方向と
直交し、且つロック用連結孔１６ａはロック頭部２に対
向した状態となり、ロック用ロッドＡ1 が軸方向に移動
したときに、ロック頭部２がロック用連結孔１６ａに貫
通することができるように、そのロック用連結板１６が
従基板１５に設けられたものである。Specifically, when the object B and the main object A are properly connected, the locking connecting plate 16
However, as shown in FIG. 3, when the lock connecting hole 16a is orthogonal to the axial direction of the lock rod A1 and the lock connection hole 16a faces the lock head 2, when the lock rod A1 moves in the axial direction, The lock connecting plate 16 is provided on the sub-board 15 so that the lock head 2 can pass through the lock connecting hole 16a.

【００２４】また、従基板１５には、解除用押上部１７
が形成され、該解除用押上部１７が主連結体Ａの被覆体
１７方向に移動し、該被覆体１７の解除用貫通孔１９を
介して、前記係止用アーム８の被当接部８ｂを押圧する
ことができる構成となっている。The release board 17 is provided on the sub-board 15.
Is formed, and the release push-up portion 17 moves in the direction of the cover 17 of the main connector A, and through the release through hole 19 of the cover 17, the contacted portion 8b of the locking arm 8 Can be pressed.

【００２５】また、従基板１５には従装着部１８が形成
され、具体的には、図２に示すように、従装着部１８は
従基板１５の幅方向両側端に従装着板１８ａ，１８ａが
形成され、該従装着板１８ａ，１８ａには従装着孔１８
ｂ，１８ｂが形成されたものであって、アタッチメント
ａに装着するときには、連結用軸をその従装着孔１８
ｂ，１８ｂに貫通させてアタッチメントａに装着される
ものである。The sub-mounting portion 18 is formed on the sub-substrate 15. More specifically, as shown in FIG. Are formed in the auxiliary mounting plates 18a, 18a.
b and 18b are formed, and the connecting shaft is attached to the attachment
b, 18b and attached to the attachment a.

【００２６】その主連結体Ａ及び被連結体Ｂには係合体
Ａ4 が設けられ、該係合体Ａ4 の一実施例としては、連
結用軸杆１９とフック２０とからなるものであり、主連
結体Ａと被連結体Ｂのいずれか一方に連結用軸杆１９が
設けられ、他方には前記連結用軸杆１９に係合自在、且
つ挿入開放部２０ａが形成されたフック２０が設けられ
たものである。An engaging body A4 is provided on the main connecting body A and the connected body B. One embodiment of the engaging body A4 is composed of a connecting shaft 19 and a hook 20. One of the body A and the connected body B is provided with a connecting shaft 19, and the other is provided with a hook 20 which is engageable with the connecting shaft 19 and has an insertion opening 20a. Things.

【００２７】図１，図２等の実施例では、主連結体Ａ側
に連結用軸杆１９が設けられ、被連結体Ｂにフック２０
が設けられたものであり、その連結用軸杆１９は大径に
形成され、主基板１のロック用ロッドＡ1 等が設けられ
ている同一面に設置されたものであって、軸支持板２
１，２１にて主基板１の面から適宜の間隔をおいて設置
されたものである。In the embodiment shown in FIGS. 1 and 2, a connecting shaft 19 is provided on the main connecting member A side, and a hook 20 is connected to the connected member B.
The connecting shaft 19 has a large diameter and is installed on the same surface of the main board 1 where the locking rods A1 and the like are provided.
In FIGS. 1 and 21, they are provided at appropriate intervals from the surface of the main substrate 1.

【００２８】次に、ロック解除手段Ａ2 は、主連結体Ａ
内に設けられたロック解除用油圧シリンダ２２が設けら
れ、ロック用ロッドＡ1 のガイド筒部４とロック解除用
油圧シリンダ２２の解除用油圧ロッド２２ａとが軸方向
に連結されている。Next, the unlocking means A2 is connected to the main connector A
An unlocking hydraulic cylinder 22 provided therein is provided, and the guide cylinder portion 4 of the locking rod A1 and an unlocking hydraulic rod 22a of the unlocking hydraulic cylinder 22 are connected in the axial direction.

【００２９】そのロック解除用油圧シリンダ２２は油圧
ユニット体２３により作動し、該油圧ユニット体２３は
建設作業用車両の動力源と一体的に構成され、該油圧ユ
ニット体２３の実施例としては、図９に示すように、ポ
ンプとバルブとから構成されたものである。The hydraulic cylinder 22 for unlocking is operated by a hydraulic unit 23. The hydraulic unit 23 is integrally formed with a power source of a construction work vehicle. Examples of the hydraulic unit 23 include: As shown in FIG. 9, it is composed of a pump and a valve.

【００３０】その解除用油圧ロッド２２ａにはピストン
２２ｂが形成され、ロック解除用油圧シリンダ２２内に
解除用油圧ロッド２２ａ側から送り込まれた油により、
ピストン２２ｂが押されて、解除用油圧ロッド２２ａが
後方に移動し、さらに解除用油圧ロッド２２ａに連結し
たロック用ロッドＡ1 のガイド筒部４も軸方向後方に移
動し、ロック用ロッドＡ1 のロック状態を解除すること
ができる。A piston 22b is formed on the release hydraulic rod 22a, and the oil is fed into the lock release hydraulic cylinder 22 from the release hydraulic rod 22a side.
When the piston 22b is pushed, the release hydraulic rod 22a moves rearward, and the guide cylinder portion 4 of the locking rod A1 connected to the release hydraulic rod 22a also moves axially rearward to lock the lock rod A1. The state can be released.

【００３１】また、主連結体Ａの主基板１上には、図１
０に示すように、油圧用ポンプ２４が装着された実施例
も存在し、被覆体Ａ3 内のロック解除用油圧シリンダ２
２を作動させることができる。Further, on the main board 1 of the main connector A, FIG.
As shown in FIG. 0, there is also an embodiment in which a hydraulic pump 24 is mounted, and the unlocking hydraulic cylinder 2 in the cover A3 is provided.
2 can be activated.

【００３２】上記実施例では、油圧ユニット体２３内の
ストップ弁２３ａを閉じ、油圧用ポンプ２４のレバー２
４ａを操作してロック解除用油圧シリンダ２２に解除用
油圧ロッド２２ａ側より油を送り込む（図１１参照）。In the above embodiment, the stop valve 23a in the hydraulic unit 23 is closed and the lever 2 of the hydraulic pump 24 is closed.
By operating 4a, oil is fed into the unlocking hydraulic cylinder 22 from the unlocking hydraulic rod 22a side (see FIG. 11).

【００３３】本発明の建設作業機械用連結具の作用につ
いては、先ず、主連結体Ａを建設用車両のブームｂ側先
端に装着し、被連結体Ｂをショベル，破砕機等のアタッ
チメントａ側に装着する。このとき、主連結体Ａでは、
図１に示すように、ロック用ロッドＡ1 は係止用アーム
８にてロック解除位置に固定した状態にしておき、ま
た、ロック解除用油圧シリンダ２２内の油を油圧ユニッ
ト体２３を介して完全に抜いておき、弾性体７の弾性力
のみでロック解除用油圧シリンダ２２の解除用油圧ロッ
ド２２ａが移動可能な状態にしておく。With respect to the operation of the connecting device for construction work machines of the present invention, first, the main connecting member A is mounted on the end of the construction vehicle at the boom b side, and the connected object B is connected to the attachment a of a shovel, a crusher or the like. Attach to At this time, in the main connector A,
As shown in FIG. 1, the locking rod A1 is fixed to the unlocking position by the locking arm 8, and the oil in the unlocking hydraulic cylinder 22 is completely removed via the hydraulic unit 23. And the release hydraulic rod 22a of the lock release hydraulic cylinder 22 can be moved only by the elastic force of the elastic body 7.

【００３４】次に、図４（ａ）に示すように、アタッチ
メントａ側を地上に固定し、建設用車両の運転室からブ
ームｂを操作して、主連結体Ａのフック２０，２０をア
タッチメントａの被連結体Ｂの連結用軸杆１９個所に誘
導し、フック２０の挿入開放部２０ａから連結用軸杆１
９を挿入する。Next, as shown in FIG. 4 (a), the attachment a side is fixed to the ground, and the boom b is operated from the cab of the construction vehicle to attach the hooks 20, 20 of the main connector A to the attachment. a of the connecting member B is guided to the 19 connecting shafts of the body B to be connected, and the connecting shaft 1 is inserted through the insertion opening portion 20a of the hook 20.
Insert 9

【００３５】次に、ブームｂを操作して、図５に示すよ
うに、主連結体Ａを連結用軸杆１９を中心にして、主連
結体Ａが被連結体Ｂと略平行となるまで回動を続け、主
連結体Ａが被連結体Ｂに対して略平行に接触すると、被
連結体Ｂのロック用連結板１６が主連結体Ａの偏平挿入
用溝１２内に収まり、且つロック用連結孔１６ａとロッ
ク頭部２とが対向し、ロック頭部２がロック用連結孔１
６ａに挿入可能な状態になる。Next, as shown in FIG. 5, the boom b is operated to move the main connecting member A around the connecting shaft 19 until the main connecting member A becomes substantially parallel to the connected object B. When the main connector A continues to rotate and comes into contact with the object B substantially in parallel, the locking connecting plate 16 of the object B fits into the flat insertion groove 12 of the main object A, and The lock connection hole 16a and the lock head 2 face each other, and the lock head 2 is
6a.

【００３６】これと略同時に、被連結体Ｂ側の解除用押
上部１７が、図６に示すように、主連結体Ａの被覆体１
６に形成した解除用貫通孔１９に挿入し、その解除用押
上部１７が係止用アーム８の被当接部８ｂに当たって、
係止用アーム８をロック用ロッドＡ1 の被係止部５から
外し、ロック用ロッドＡ1 の固定が解除されると、ロッ
ク用ロッドＡ1 は弾性体７の弾性力にて軸方向に移動
し、ロック頭部２がロック用連結孔１６ａに挿入し、主
連結体Ａと被連結体Ｂとの連結作業が完了する。At about the same time, as shown in FIG.
6 is inserted into the release through-hole 19 formed in the lock 6, and the release push-up portion 17 hits the contacted portion 8 b of the locking arm 8,
When the locking arm 8 is removed from the locked portion 5 of the locking rod A1 and the locking rod A1 is released, the locking rod A1 moves in the axial direction by the elastic force of the elastic body 7, The lock head 2 is inserted into the lock connection hole 16a, and the connection operation between the main connection body A and the connection target body B is completed.

【００３７】次に、連結状態の主連結体Ａと被連結体Ｂ
とを分離するには、ロック解除手段Ａ2 の油圧ユニット
体２３を始動させ、ロック解除用油圧シリンダ２２内に
油を送り込み、図７に示すように、解除用油圧ロッド２
２ａを解除方向に移動させることにより、ロック用ロッ
ドＡ1 もロック解除方向に移動する。Next, the connected main body A and the connected body B
The hydraulic unit 23 of the unlocking means A2 is started, oil is fed into the hydraulic cylinder 22 for unlocking, and the hydraulic rod 2 for unlocking is released as shown in FIG.
By moving 2a in the unlocking direction, the locking rod A1 also moves in the unlocking direction.

【００３８】該ロック用ロッドＡ1 はロック解除位置ま
で押し戻され、図８に示すように、ロック頭部２がロッ
ク用連結孔１６ａから外れ、且つ係止用アーム８の係止
用凹部８ａ個所にロック用ロッドＡ1 の被係止部５が到
達し、係止用凹部８ａと被係止部５とが係止状態とな
り、ロック用ロッドＡ1 がロック解除位置に固定され、
主連結体Ａと被連結体Ｂとの分離が完了する。The locking rod A1 is pushed back to the unlocked position, and as shown in FIG. 8, the locking head 2 is disengaged from the locking connecting hole 16a and the locking arm 8 is positioned at the locking recess 8a. The locked portion 5 of the locking rod A1 reaches, the locking recess 8a and the locked portion 5 are locked, and the locking rod A1 is fixed at the unlocked position.
The separation of the main linked body A and the linked body B is completed.

【００３９】なお、上述したように主連結体Ａはブーム
ｂ先端に装着され、被連結体Ｂはアタッチメントａ側に
装着されることが多いが、必ずしも該実施例に限定され
るものではなく、主連結体Ａがアタッチメントａに装着
され、被連結体Ｂがブームｂ先端に装着されることもあ
る。As described above, the main connector A is mounted on the end of the boom b, and the connected member B is mounted on the attachment a side in many cases. However, the present invention is not necessarily limited to this embodiment. The main connected body A may be mounted on the attachment a, and the connected body B may be mounted on the tip of the boom b.

【００４０】また、主連結体Ａ及び被連結体Ｂは、図４
（ｂ）に示すように、予めブームｂ先端及びアタッチメ
ントａに一体的に形成することもある。The main connected body A and the connected body B are the same as those shown in FIG.
As shown in (b), the tip of the boom b and the attachment a may be formed integrally in advance.

【００４１】さらに、ロック用ロッドＡ1 は、主連結体
Ａに二基設けらていることが多いが、そのロック用ロッ
ドＡ1 が一基設けられる実施例も存在する（図１２参
照）。Further, although two locking rods A1 are often provided on the main connecting member A, there is an embodiment in which one locking rod A1 is provided (see FIG. 12).

【００４２】[0042]

【発明の効果】本発明においては、弾性体７にて付勢し
たロック用ロッドＡ1 と該ロック用ロッドＡ1 の軸方向
後部をロック用ロッドＡ1 の軸方向に移動自在な解除用
油圧ロッド２２ａに連結してなるロック解除手段Ａ2 と
設けた主連結体Ａと、被連結体Ｂとからなり、主連結体
Ａと被連結体Ｂとの接触にてロック用ロッドＡ1 先端が
被連結体Ｂ側に突出且つ貫通して弾発結合してなる建設
作業機械用連結具としたことにより、主連結体Ａと被連
結体Ｂとの連結が瞬時にできるし、第２にロック解除が
極めて簡単にできる等の種々の効果を奏する。According to the present invention, the locking rod A1 urged by the elastic body 7 and the axial rear portion of the locking rod A1 are moved to the releasing hydraulic rod 22a which is movable in the axial direction of the locking rod A1. The main connecting body A provided with the unlocking means A2 connected and the connected body B, and the tip of the locking rod A1 is brought into contact with the connected body B by the contact between the main connecting body A and the connected body B. The main connecting member A and the connected member B can be instantaneously connected to each other, and secondly, the lock can be released very easily. Various effects such as being possible are exhibited.

【００４３】上記効果を詳述すると、主連結体Ａに設け
たロック用ロッドＡ1 は、主連結体Ａと、被連結体Ｂと
の接触時にロック用ロッドＡ1 が被連結体Ｂ側に突出
し、貫通することにより、主連結体Ａと被連結体Ｂとの
連結が略瞬時にできる。To explain the above effect in detail, the locking rod A1 provided on the main connecting body A is such that when the main connecting body A comes into contact with the connected body B, the locking rod A1 projects toward the connected body B, By penetrating, the connection between the main connected body A and the connected body B can be performed almost instantaneously.

【００４４】さらに、主連結体Ａと被連結体Ｂとの連結
作業は、主連結体Ａと被連結体Ｂとを単に接触させるの
みにてロック用ロッドＡ1 が被連結体Ｂ側に突出且つ貫
通するものであり、その操作は極めて簡単にすることが
でき、且つ確実な連結が可能なので連結状態を確認する
必要もなく、それに携わる作業員も不要にできる。Further, the connecting operation between the main connected body A and the connected object B is performed simply by bringing the main connected body A and the connected object B into contact with each other so that the locking rod A1 projects toward the connected object B side. It is penetrating, and its operation can be extremely simplified, and reliable connection is possible, so that it is not necessary to check the connection state, and it is possible to eliminate the need for workers involved in the connection.

【００４５】また、その連結状態は主連結体Ａに設けた
ロック用ロッドＡ1 が被連結体Ｂ側に突出して貫通し、
連結を行うものであり、従ってロック用ロッドＡ1 の軸
方向に水平方向及び垂直方向の振動衝撃に対して極めて
強固であり、従来の爪と軸による係止タイプのものに比
べて振動，衝撃に対して極めて強く、耐久性を有するも
のにできる。The connecting state is such that the locking rod A1 provided on the main connecting member A projects and penetrates to the connected member B side,
The locking rod A1 is extremely strong against vibration and impact in the horizontal and vertical directions in the axial direction of the locking rod A1. It is extremely strong and durable.

【００４６】また、ロック用ロッドＡ1 はスプリング等
の弾性材を使用して、被連結体Ｂ側に突出且つ貫通する
構造とすることで、主連結体Ａ及び被連結体Ｂのいずれ
でもブームｂ先端に装着することができ、これは油圧機
構を設けたロック装置のように、ブームｂ側に装着し
て、建設作業用車両の油圧機構と連結しなければならな
い従来タイプの連結具に比べて、装着手段が格段と簡単
にできる利点がある。Further, the locking rod A1 has a structure that projects and penetrates to the connected object B side by using an elastic material such as a spring, so that both the main connected object A and the connected object B have a boom b. It can be attached to the tip, which is similar to a lock device equipped with a hydraulic mechanism, which is attached to the boom b side and compared with a conventional type of coupling tool which must be connected to the hydraulic mechanism of the construction work vehicle. There is an advantage that the mounting means can be significantly simplified.

【００４７】次に、ロック用ロッドＡ1 は弾性体７にて
付勢していることにより、一端ロック用ロッドＡ1 に対
してロック状態とすると、弾性体７の付勢による押圧力
がかかっているので、そのロックを解除するまで、極め
て強固なるロック状態を維持することができる。Next, since the locking rod A1 is urged by the elastic body 7, when the locking rod A1 is once locked with respect to the locking rod A1, a pressing force due to the urging of the elastic body 7 is applied. Therefore, an extremely strong locked state can be maintained until the lock is released.

【００４８】次に、ロック用ロッドＡ1 のロック状態解
除においては、ロック用ロッドＡ1の後方に軸方向に沿
ってロック解除用油圧シリンダ２２の解除用油圧ロッド
２２ａを連結しており、ロック解除用油圧シリンダ２２
内に油を流入させることで、解除用油圧ロッド２２ａが
移動し、その移動をロック用ロッドＡ1 のロック方向と
反対方向にすることで、ロック状態を極めて簡単に解除
することができる。Next, when releasing the lock state of the lock rod A1, the release hydraulic rod 22a of the lock release hydraulic cylinder 22 is connected to the rear of the lock rod A1 along the axial direction. Hydraulic cylinder 22
By letting the oil flow in, the release hydraulic rod 22a moves, and the movement is made in the opposite direction to the locking direction of the locking rod A1, whereby the locked state can be released very easily.

【００４９】[0049]

【図面の簡単な説明】[Brief description of the drawings]

【図１】主連結体及び被連結体の縦断側面図FIG. 1 is a longitudinal sectional side view of a main connected body and a connected body.

【図２】主連結体と被連結体とを分離した状態の斜視図FIG. 2 is a perspective view of a state where a main connected body and a connected body are separated.

【図３】本発明の縦断平面図FIG. 3 is a vertical sectional view of the present invention.

【図４】（ａ）はブームｂ先端にアタッチメントを装着
する状態を示す略示図 （ｂ）は被連結体をアタッチメントに一体的に設けた略
示図4A is a schematic view showing a state in which an attachment is attached to the tip of a boom b. FIG. 4B is a schematic view in which a connected body is provided integrally with the attachment.

【図５】主連結体と被連結体とを前後方向一端にて係合
した状態を示す縦断側面図FIG. 5 is a longitudinal sectional side view showing a state in which a main connected body and a connected body are engaged at one end in the front-rear direction.

【図６】主連結体と被連結体とのロックが完了した状態
を示す縦断側面図FIG. 6 is a vertical cross-sectional side view showing a state where locking between the main connected body and the connected body is completed.

【図７】ロック用ロッドの解除を行う状態を示す要部断
面図FIG. 7 is a sectional view of a main part showing a state in which a lock rod is released.

【図８】ロック用ロッドの解除が完了した状態を示す要
部断面図FIG. 8 is a sectional view of a main part showing a state in which the release of the locking rod is completed.

【図９】本発明における実施例の油圧回路図FIG. 9 is a hydraulic circuit diagram of an embodiment according to the present invention.

【図１０】主連結体に油圧機器を設けた実施例の縦断側
面図FIG. 10 is a longitudinal sectional side view of an embodiment in which a hydraulic device is provided in a main coupling body.

【図１１】本発明における別の実施例の油圧回路図FIG. 11 is a hydraulic circuit diagram of another embodiment of the present invention.

【図１２】本発明においてロック用ロッドを一基とした
実施例の縦断平面図FIG. 12 is a longitudinal sectional plan view of an embodiment in which a lock rod is used as one unit in the present invention.

【符号の説明】[Explanation of symbols]

Ａ…主連結体 Ａ1 …ロック用ロッド ７…弾性体 Ａ2 …ロック解除手段 ２２ａ…解除用油圧ロッド Ｂ…被連結体 A: Main linked body A1: Locking rod 7: Elastic body A2: Lock release means 22a: Release hydraulic rod B: Connected body

フロントページの続き (72)発明者 松居 邦彦 千葉市花見川区千種町314番地 株式会 社坂戸工作所内 (72)発明者 永吉 勇 千葉市花見川区千種町314番地 株式会 社坂戸工作所内 (72)発明者 久野 利之 千葉市花見川区千種町314番地 株式会 社坂戸工作所内 (72)発明者 浅井 正幸 千葉市花見川区千種町314番地 株式会 社坂戸工作所内 (72)発明者 戸嶋 利文 千葉市花見川区千種町314番地 株式会 社坂戸工作所内 (56)参考文献 実開 昭60−96374（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) E02F 3/40Continued on the front page (72) Inventor Kunihiko Matsui 314 Chikusa-cho, Hanamigawa-ku, Chiba-shi Inside Sakado Works (72) Inventor Isamu Nagayoshi 314 Chikusa-cho, Hanamigawa-ku, Chiba-shi Sakado Works (72) Invention Toshiyuki Kuno 314 Chikusa-cho, Hanamigawa-ku, Chiba-shi Inside the Sakado Works, Ltd. (72) Inventor Masayuki Asai 314 Chikusa-cho, Hanamigawa-ku, Chiba-shi Inside the Sakado Works, Ltd. (72) Inventor Toshifumi Toshima Chiba, Chiba-shi 314, Machi In the Sakado Works, Ltd. (56) References Japanese Utility Model Showa 60-96374 (JP, U) (58) Field surveyed (Int. Cl. 6 , DB name) E02F 3/40

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 弾性体にて付勢したロック用ロッドと該
ロック用ロッドの軸方向後部をロック用ロッドの軸方向
に移動自在な解除用油圧ロッドに連結してなるロック解
除手段と設けた主連結体と、被連結体とからなり、主連
結体と被連結体との接触にてロック用ロッド先端が被連
結体側に突出且つ貫通して弾発結合してなることを特徴
とした建設作業機械用連結具。A lock rod urged by an elastic body and unlocking means connected to a release hydraulic rod which is axially movable in the axial direction of the lock rod are provided. A construction comprising a main connected body and a connected body, wherein a tip of a locking rod protrudes toward the connected body side and is elastically connected through contact with the main connected body and the connected body. Work machine coupling.
JP5081177A 1993-03-17 1993-03-17 Connector for construction work machine Expired - Fee Related JP2809260B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5081177A JP2809260B2 (en) 1993-03-17 1993-03-17 Connector for construction work machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5081177A JP2809260B2 (en) 1993-03-17 1993-03-17 Connector for construction work machine

Publications (2)

Publication Number Publication Date
JPH06272275A JPH06272275A (en) 1994-09-27
JP2809260B2 true JP2809260B2 (en) 1998-10-08

Family

ID=13739190

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5081177A Expired - Fee Related JP2809260B2 (en) 1993-03-17 1993-03-17 Connector for construction work machine

Country Status (1)

Country Link
JP (1) JP2809260B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1319865B1 (en) * 2000-03-27 2003-11-03 C M S N C Di Cangini Giorgio & DEVICE FOR HOOKING AND QUICK RELEASE OF THE EXCAVATION TOOL OF THE HYDRAULIC EXCAVATORS.
ITBO20060631A1 (en) * 2006-09-12 2008-03-13 Cangini Benne Srl DEVICE FOR CONNECTING A TOOL TO A MEDIUM OF DRIVE.
GB2582595B (en) * 2019-03-27 2021-04-07 Caterpillar Work Tools Bv Quick coupler for attaching a tool to a hydraulic excavator or other work machine
DE102020115197A1 (en) * 2020-06-08 2021-12-09 OilQuick Deutschland KG Adapter for a quick change system and quick change system with such an adapter

Also Published As

Publication number Publication date
JPH06272275A (en) 1994-09-27

Similar Documents

Publication Publication Date Title
US5890871A (en) Latching mechanism for a quick coupler
US4295287A (en) Backhoe bucket quick coupler
CA2072342C (en) Quick coupling arrangement for excavator buckets and the like
JP2736286B2 (en) Quick connection device for hydraulic piping
KR101021926B1 (en) Attachment coupler for heavy industrial equipment
EP2161378A1 (en) Coupler with gravity operated safety device
JPS6393934A (en) Connection assembly for construction machine
CA2590464A1 (en) Quick coupling mechanism for tool attachment
KR100945084B1 (en) Quick coupler for excavator
KR20210124196A (en) coupler
KR101523072B1 (en) Quick coupler for excavation
JP2809260B2 (en) Connector for construction work machine
JP2803807B2 (en) Connector for construction work machine
JP2007146582A (en) Quick coupler for working vehicle
JP2009518588A (en) Safety device for hydraulic coupling
JP2803808B2 (en) Connector for construction work machine
JP2809257B2 (en) Connector for construction work machine
JP2809258B2 (en) Connector for construction work machine
AU2012201264B2 (en) A safety mechanism for a coupler for coupling an accessory to a dipper arm
JP2809259B2 (en) Connector for construction work machine
JP2859146B2 (en) Connector for construction work machine
US10995470B2 (en) Service pin assembly for a machine
GB2610148A (en) Coupler
JP2007169980A (en) Quick coupler of work vehicle
JPH06248662A (en) Connecting device for construction machine

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees