JP2809257B2 - Connector for construction work machine - Google Patents

Connector for construction work machine

Info

Publication number
JP2809257B2
JP2809257B2 JP5081172A JP8117293A JP2809257B2 JP 2809257 B2 JP2809257 B2 JP 2809257B2 JP 5081172 A JP5081172 A JP 5081172A JP 8117293 A JP8117293 A JP 8117293A JP 2809257 B2 JP2809257 B2 JP 2809257B2
Authority
JP
Japan
Prior art keywords
lock
main
bending
release
boom
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP5081172A
Other languages
Japanese (ja)
Other versions
JPH06272270A (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 JP5081172A priority Critical patent/JP2809257B2/en
Publication of JPH06272270A publication Critical patent/JPH06272270A/en
Application granted granted Critical
Publication of JP2809257B2 publication Critical patent/JP2809257B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E02F3/3645—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
    • E02F3/3627—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
    • E02F3/3668—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat where engagement is effected by a mechanical lever or handle
    • 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
    • E02F3/3672—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat where disengagement is effected by a mechanical lever or handle

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、本発明を略
く字状に屈伸自在とし、且つ弾性体を介して伸び状態に
付勢した屈伸部を設けたロック体と、前記屈伸部の伸縮
方向に略直交して設けた螺子杆に螺合して移動し、前記
屈伸部を押圧可能な解除体からなるロック解除手段とを
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体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 In order to solve the above-mentioned problems, the present inventors have made intensive studies, and as a result, have made the present invention bendable and extendable in a substantially rectangular shape, and made the present invention extendable through an elastic body. A lock body provided with a biased bending portion, and a lock release means comprising a release body capable of being screwed into a screw rod provided substantially perpendicular to the direction of expansion and contraction of the bending portion and moving to press the bending portion. For a construction work machine, comprising a main connecting body provided with a connecting body and a connected body, wherein a tip end of the lock body protrudes toward the connected body side and is elastically connected through contact with the main connecting body and the connected body. By using the connecting tool, various work attachments such as a crusher and a bucket can be easily and quickly attached to the end of a boom of a construction vehicle having a work boom such as a hydraulic shovel,
Alternatively, it can be detached, and its mounting state can be made extremely strong, thus solving the above problem.

【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、図１に示すように、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。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the present invention comprises a main body A and a body B to be connected. The main connector A is mounted on the tip of a boom b for construction work of a construction vehicle such as a shovel, and the connected object B is mounted on the attachment a side of a digging bucket, a crusher, or the like. The connection is performed via the main connected body A and the connected body B.

【００１０】その主連結体Ａは、図１，図３等に示すよ
うに、主基板１の一側面にロック体Ａ1 ，ロック解除手
段Ａ2 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１８が形成されている。As shown in FIGS. 1 and 3, the main connector A is provided with a lock body A1, a lock release means A2, etc. on one side of the main board 1, and a boom of a construction vehicle on the other side. b
A main mounting portion 18 to be mounted on the distal end is formed.

【００１１】そのロック体Ａ1 は、図３乃至図５（ａ）
等に示すように、主に円筒形状のロック頭部２と屈伸部
４とからなり、ロック頭部２と屈伸部４とはロック側連
接部３にて回動自在に枢支連結され、屈伸部４と主基板
１側とは固定側連接部５にて連接されている。The lock body A1 is shown in FIGS. 3 to 5 (a).
As shown in FIG. 1 and the like, the lock head 2 mainly comprises a cylindrical lock head 2 and a bending / extending portion 4. The part 4 and the main board 1 are connected by a fixed-side connecting part 5.

【００１２】その屈伸部４は、図３，図５（ａ）に示す
ように、揺動リンク４ａと連接リンク４ｂとから構成さ
れ、その揺動リンク４ａと連接リンク４ｂとがピン等に
より回動自在に枢支連結され、さらに前記連接リンク４
ｂがロック側連接部３にてロック頭部２に回動自在に連
結され、揺動リンク４ａが固定側連接部５にて主基板１
に回動自在に連結され、その屈伸部４の揺動リンク４ａ
と連接リンク４ｂとの屈伸動作により、ロック頭部２が
軸方向に往復移動することができる構造となっている。As shown in FIGS. 3 and 5 (a), the bending / extending portion 4 is composed of a swinging link 4a and a connecting link 4b, and the swinging link 4a and the connecting link 4b are turned by a pin or the like. Movably pivotally connected, and the connecting link 4
b is rotatably connected to the lock head 2 at the lock-side connecting portion 3, and the swing link 4 a is connected to the main board 1 at the fixed-side connecting portion 5.
Slidably connected to the oscillating link 4a
The lock head 2 can be reciprocated in the axial direction by the bending and stretching operation between the lock head 2 and the connecting link 4b.

【００１３】そのロック体Ａ1 は、図１，図４等に示す
ように、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構成となっており、ロック体Ａ1 に
屈伸部４，４が設けられている。As shown in FIGS. 1, 4 and the like, the lock body A1 has a configuration in which the axial direction is substantially parallel to the surface of the main substrate 1 and is slidable in the axial direction. The body A1 is provided with bending parts 4,4.

【００１４】その両屈伸部４，４の両揺動リンク４ａ，
４ａ及び連接リンク４ｂ，４ｂとが屈伸状態となるとき
は、図３，図５（ａ）等に示すように、左右対称となる
ように互いに外方に広がる構造となる。The two swing links 4a, 4b,
When the link 4a and the connecting links 4b, 4b are bent and stretched, as shown in FIG. 3 and FIG.

【００１５】その両屈伸部４，４には互いに引き合うよ
うに弾性体７が設けられており、具体的には弾性体７は
コイルスプリングが使用され、図３又は図５の実施例で
は揺動リンク４ａ，４ａの間に弾性体７が設けられてい
るが、連接リンク４ｂ，４ｂ側に弾性体７を設けても構
わない。An elastic body 7 is provided on each of the bending and extending portions 4 and 4 so as to attract each other. Specifically, the elastic body 7 uses a coil spring, and in the embodiment shown in FIG. Although the elastic body 7 is provided between the links 4a, 4a, the elastic body 7 may be provided on the connecting links 4b, 4b side.

【００１６】該弾性体７により両屈伸部４，４は、図３
に示すように、常時揺動リンク４ａと連接リンク４ｂと
が略一直線状となるように付勢されており、即ち両屈伸
部４，４の揺動リンク４ａと連接リンク４ｂとが屈伸し
ても、外力を除去した状態では、即座に伸びた状態に復
元する構造となっている。The flexures 4 and 4 are formed by the elastic body 7 as shown in FIG.
As shown in (1), the swing link 4a and the connecting link 4b are constantly biased so as to be substantially linear, that is, the swing link 4a and the connecting link 4b of the bending portions 4 are bent and stretched. However, when the external force is removed, it is immediately restored to the stretched state.

【００１７】また、ロック体Ａ1 には、図３乃至図５等
に示すように、被係止部６が設けられており、該被係止
部６の具体的な実施例としては両ロック側連接部３，３
間に軸杆形状の被係止部６が設けられたものであり、該
被係止部６に係止用アーム８が係止して、ロック体Ａ1
をロック解除状態に維持する構造となっている。As shown in FIGS. 3 to 5 and the like, the lock body A1 is provided with a locked portion 6, and a specific embodiment of the locked portion 6 is a lock-side portion on both lock sides. Connecting part 3,3
A locked portion 6 having a shaft and a rod is provided between the locking portions 6 and a locking arm 8 is locked to the locked portion 6 to form a lock body A1.
Is maintained in the unlocked state.

【００１８】その係止用アーム８は、図４，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がロック体Ａ1 に設
けた被係止部６に係止し、ロック体Ａ1 を前記弾性体７
の弾性力に抗して、所定位置に停止させることができ
る。As shown in FIGS. 4, 5 and the like, the locking arm 8 has a notch-shaped locking recess 8a formed at the end in the longitudinal direction, and the locking recess 8a is locked. The lock body A1 is locked to the locked portion 6 provided on the body A1, and the lock body A1 is
Can be stopped at a predetermined position against the elastic force of.

【００１９】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、ロック体Ａ1 の被係止
部６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、前記被当接部８ｂは
図４等に示すように、後述する被連結体Ｂの解除用押上
部２１が当接且つ押圧するようになっている。The engaging arm 8 is formed with an abutting portion 8b 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 6 of the lock body A1, moves in the axial direction by the elastic force of the elastic body 7,
The connection with the connected object B is performed, and as shown in FIG. 4 and the like, the abutting portion 8b is brought into contact with and pressed by a release push-up portion 21 of the connected object B described later. .

【００２０】その係止用アーム８は、主基板１との間
に、図１，図４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がロック体Ａ1 の被係止部６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 arm 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 6 of the lock body A1 in a pressed state.

【００２１】次に、ロック解除手段Ａ2 は、図３に示す
ように、主に解除体１０，送り螺子杆１１及びガイド部
１２等から構成され、その解除体１０は移動部１０ａと
押圧棒１０ｃから構成され、さらにその移動部１０ａに
は内螺子１０ｂが形成されている。Next, as shown in FIG. 3, the unlocking means A2 mainly comprises a releasing member 10, a feed screw rod 11, a guide portion 12, and the like. The releasing member 10 comprises a moving portion 10a and a pressing rod 10c. Further, an inner screw 10b is formed in the moving portion 10a.

【００２２】その解除体１０の移動部１０ａは、図５
（ａ）及び（ｂ）に示すように、略直方体状等の立方体
に形成され、その中心個所を貫通するようにして内螺子
１０ｂが形成されたものであり、該解除体１０の移動部
１０ａが送り螺子杆１１に螺合して軸方向に移動するも
のである。The moving part 10a of the release body 10 is shown in FIG.
As shown in (a) and (b), it is formed in a substantially rectangular parallelepiped or the like cubic shape, and has an inner screw 10b formed so as to penetrate a central portion thereof. Are screwed into the feed screw rod 11 and move in the axial direction.

【００２３】その送り螺子杆１１は、図３，図５（ａ）
及び（ｂ）に示すように、軸方向の中心に停止用太軸部
１１ａが形成され、該停止用太軸部１１ａの両側に外螺
子軸部１１ｂ，１１ｂが形成されており、両外螺子軸部
１１ｂ，１１ｂは、螺子形成方向が互い反対となるよう
に形成されている。The feed screw rod 11 is shown in FIGS. 3 and 5 (a).
As shown in (b) and (b), a thick stop shaft portion 11a is formed at the center in the axial direction, and outer screw shaft portions 11b, 11b are formed on both sides of the stop thick shaft portion 11a. The shaft portions 11b, 11b are formed such that the screw forming directions are opposite to each other.

【００２４】その送り螺子杆１１を一定方向に回転させ
ると、両外螺子軸部１１ｂ，１１ｂにそれぞれ設けた解
除体１０，１０は、同時に送り螺子杆１１の軸方向に対
して反対方向に移動したり、互いに中心に向かうように
移動する。When the feed screw rod 11 is rotated in a fixed direction, the release members 10 provided on the outer screw shaft portions 11b are simultaneously moved in the opposite direction to the axial direction of the feed screw rod 11. Or move towards each other towards the center.

【００２５】その解除体１０，１０の移動部１０ａ，１
０ａに設けた押圧棒１０ｃ，１０ｃは前記ロック体Ａ1
の屈伸部４，４を内側より押圧するようになっており、
移動部１０ａ，１０ａとともに両押圧棒１０ｃ，１０ｃ
が屈伸部４，４を押圧して、屈伸させる構造となってい
る。The moving parts 10a, 1 of the release bodies 10, 10
The pressing rods 10c, 10c provided on the lock body A1
Press the bending and stretching parts 4 and 4 from the inside,
Both pressing rods 10c, 10c together with the moving parts 10a, 10a
Has a structure in which the bending portions 4 and 4 are pressed and bent.

【００２６】上記のロック体Ａ1 及びロック解除手段Ａ
2 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１４がロッ
ク体Ａ1 及びロック解除手段Ａ2 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１４に
は、図１，図３及び図５（ａ）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
１５が形成されている。The lock body A1 and the lock release means A
2, the apparatus provided on the main substrate 1 is covered and protected by a cover A3 as shown in FIG. 2, and specifically, the cover A3 is a casing 14 formed in a cubic box shape. Is formed on the main substrate 1 so as to cover the lock body A1 and the unlocking means A2, and the casing 14 has a casing 14 as shown in FIG. 1, FIG. 3 and FIG. A lock head guide through hole 15 is formed so that the lock head 2 can slide freely.

【００２７】さらに、筺体部１４のロック頭部ガイド貫
通孔１５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２０が遊挿自
在となる偏平挿入用溝１６が形成されている。Further, as shown in FIG. 1 and the like, a lock connecting plate 20 of a connected body B, which will be described later, is freely inserted into the side wall plate of the housing portion 14 in which the lock head guide through hole 15 is formed. The flat insertion groove 16 is formed.

【００２８】また、筺体部１４の頂部板上には、解除用
貫通孔１７が形成され、該解除用貫通孔１７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１７を介して被連結体Ｂの解
除用押上部２１が挿入して、係止用アーム８の被当接部
８ｂを押圧可能な構造となっている。Further, a release through hole 17 is formed on the top plate of the housing portion 14, and the contacted portion 8 b of the locking arm 8 is located at a position corresponding to the location where the release through hole 17 is formed. The release push-up portion 21 of the connected body B is inserted through the release through hole 17 to press the contacted portion 8b of the locking arm 8.

【００２９】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１８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１８は主基板１の幅方向両
側端に装着板１８ａ，１８ａが形成され、該装着板１８
ａ，１８ａには装着孔１８ｂ，１８ｂ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１８ｂ，１８ｂ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 18 is provided on the main board 1 of the main connector A.
As shown in FIG. 2, the main mounting portion 18 has mounting plates 18a, 18a formed at both ends in the width direction of the main substrate 1, and the mounting plate 18
The mounting holes 18b, 18b are formed in the a, 18a, and when mounted on the end of the boom b, the connecting shaft is passed through the mounting holes 18b, 18b and mounted on the end of the boom b. is there.

【００３０】次に、被連結体Ｂでは従基板１９の一側面
上にロック用連結板２０が形成され、該ロック用連結板
２０には前記ロック体Ａ1 のロック頭部２が挿入自在と
なるロック用連結孔２０ａが形成されている。Next, in the connected member B, a lock connecting plate 20 is formed on one side surface of the slave substrate 19, and the lock head 2 of the lock body A1 can be inserted into the lock connecting plate 20 freely. A lock connection hole 20a is formed.

【００３１】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２０
が、図３に示すように、ロック体Ａ1 の軸方向と直交
し、且つロック用連結孔２０ａはロック頭部２に対向し
た状態となり、ロック体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２０ａに貫通するこ
とができるように、そのロック用連結板２０が従基板１
９に設けられたものである。Specifically, when the connected object B and the main connected object A are properly connected, the locking connecting plate 20
However, as shown in FIG. 3, the lock connecting hole 20a is orthogonal to the axial direction of the lock body A1 and the lock connecting hole 20a faces the lock head 2. When the lock body A1 moves in the axial direction, the lock head In order that the portion 2 can pass through the locking connection hole 20a, the locking connection plate 20 is
9.

【００３２】また、従基板１９には、解除用押上部２１
が形成され、該解除用押上部２１が主連結体Ａの被覆体
Ａ3 方向に移動し、該被覆体Ａ3 の解除用貫通孔１７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 21 is provided on the sub-board 19.
The release push-up portion 21 moves in the direction of the cover A3 of the main connector A, and the contact portion 8b of the locking arm 8 passes through the release through hole 17 of the cover A3. Can be pressed.

【００３３】また、従基板１９には従装着部２２が形成
され、具体的には、図２に示すように、従装着部２２は
従基板１９の幅方向両側端に従装着板２２ａ，２２ａが
形成され、該従装着板２２ａ，２２ａには従装着孔２２
ｂ，２２ｂ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２２
ｂ，２２ｂ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。A sub-mounting portion 22 is formed on the sub-substrate 19. More specifically, as shown in FIG. Are formed in the auxiliary mounting plates 22a, 22a.
b, 22b are formed, and when mounting to the attachment a, the connecting shaft is
b, 22b and attached to the attachment a.

【００３４】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２３とフック２４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２３が
設けられ、他方には前記連結用軸杆２３に係合自在、且
つ挿入開放部２４ａが形成されたフック２４が設けられ
たものである。The main connecting member A and the connected member B are each provided with an engaging member A4. One embodiment of the engaging member A4 comprises a connecting shaft 23 and a hook 24. One of the body A and the connected body B is provided with a connecting shaft 23, and the other is provided with a hook 24 which is engageable with the connecting shaft 23 and has an insertion opening 24a. Things.

【００３５】図１，図２等の実施例では、主連結体Ａ側
に連結用軸杆２３が設けられ、被連結体Ｂにフック２４
が設けられたものであり、その連結用軸杆２３は大径に
形成され、主基板１のロック体Ａ1 及びロック解除手段
Ａ2 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２５，２５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 embodiments shown in FIGS. 1 and 2, a connecting shaft 23 is provided on the main connecting member A side, and a hook 24 is attached to the connected member B.
The connecting shaft 23 has a large diameter and is installed on the same surface of the main board 1 on which the lock body A1 and the unlocking means A2 are provided. The support plates 25 are provided at appropriate intervals from the surface of the main substrate 1.

【００３６】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、ロック体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く。Regarding the operation of the connecting device for a construction work machine according to the present invention, first, the main connecting member A is mounted on the end of the construction vehicle on the boom b side, and the connected object B is connected to the attachment a such as a shovel or a crusher. Attach to At this time, in the main connector A,
As shown in FIG. 1, the lock body A1 is fixed to the unlocked position by the locking arm 8.

【００３７】次に、図６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２４をアタッチメント
ａの被連結体Ｂの連結用軸杆２３個所に誘導し、フック
２４の挿入開放部２４ａから連結用軸杆２３を挿入す
る。Next, as shown in FIG. 6, the attachment a side is fixed on the ground, and the boom b
Is operated to guide the hook 24 of the main connector A to the 23 connecting rods of the connected object B of the attachment a, and the connecting rod 23 is inserted from the insertion opening 24 a of the hook 24.

【００３８】次に、ブームｂを操作して、図７に示すよ
うに、主連結体Ａを連結用軸杆２３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２０が主連結体Ａの偏平挿入
用溝１６内に収まり、且つ図８に示すように、ロック用
連結孔２０ａ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２０ａに挿入可能な状態になる。Next, as shown in FIG. 7, the boom b is operated to move the main connector A around the connecting shaft 23 until the main connector A is substantially parallel to the 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 20 of the object B fits into the flat insertion groove 16 of the main object A, and As shown in FIG. 8, the lock connection hole 20a and the lock head 2 face each other, and the lock head 2
Can be inserted into the lock connection hole 20a.

【００３９】これと略同時に、被連結体Ｂ側の解除用押
上部２１が、図９に示すように、主連結体Ａの被覆体Ａ
3 に形成した解除用貫通孔１７に挿入し、その解除用押
上部２１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をロック体Ａ1 の被係止部６から外し、
ロック体Ａ1 の固定が解除されると、両屈伸部４，４が
弾性体７の弾性力にて一直線状に伸び、ロック頭部２，
２がロック用連結孔２０ａ，２０ａ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.
3, the release push-up portion 21 hits the contacted portion 8 b of the locking arm 8,
Remove the locking arm 8 from the locked portion 6 of the lock body A1,
When the locking of the lock body A1 is released, the bending portions 4 and 4 extend linearly by the elastic force of the elastic body 7, and the lock heads 2 and 4 extend.
2 is inserted into the locking connection holes 20a, 20a, and the connection work between the main connection body A and the connection target body B is completed.

【００４０】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、アタッチメントａを地上に置いて安
定した状態とし、ロック解除手段Ａ2 の送り螺子杆１１
を主連結体Ａの外部より作動具１３を介して回転させ、
解除体１０，１０にて屈伸部４，４を押圧し、該屈伸部
４，４を屈伸させることにより、ロック頭部２，２をロ
ック用連結孔２０ａ，２０ａから外すとともに、ロック
体Ａ1 の被係止部６と係止用アーム８とを係止させてロ
ック解除状態を確保する。Next, the connected main body A and the connected body B
In order to separate the feed screw rod 11 from the unlocking means A2, the attachment a is placed on the ground to make it stable.
Is rotated from the outside of the main connector A via the operating tool 13,
By pressing the bending portions 4, 4 with the release members 10, 10, the bending portions 4, 4 are bent to extend the locking heads 2, 2 from the locking connection holes 20a, 20a, and to lock the locking member A1. The locked portion 6 and the locking arm 8 are locked to secure the unlocked state.

【００４１】また、再度主連結体Ａを被連結体Ｂに連結
するためには、送り螺子杆１１を作動具１３を介して回
転させ、解除体１０，１０を両屈伸部４，４から離れた
位置に移動させる。Further, in order to connect the main connecting member A to the connected member B again, the feed screw rod 11 is rotated via the operating tool 13 to separate the releasing members 10, 10 from the bending portions 4. Move to the position

【００４２】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.

【００４３】また、主連結体Ａ及び被連結体Ｂは、図６
（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 linked body A and the linked body B are the same as in FIG.
As shown in (b), the tip of the boom b and the attachment a may be formed integrally in advance.

【００４４】さらに、ロック体Ａ1 には二基のロック頭
部２，２が設けらていることが多いが、そのロック体Ａ
1 のロック頭部２が一基設けられる実施例も存在する
（図１０参照）。Further, the lock body A 1 is often provided with two lock heads 2, 2.
In some embodiments, one lock head 2 is provided (see FIG. 10).

【００４５】[0045]

【発明の効果】本発明においては、略く字状に屈伸自在
とし、且つ弾性体７を介して伸び状態に付勢した屈伸部
４を設けたロック体Ａ1 と、前記屈伸部４の伸縮方向に
略直交して設けた螺子杆１１に螺合して移動し、前記屈
伸部４を押圧可能な解除体１０からなるロック解除手段
Ａ2 とを設けた主連結体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体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とともに、そのロック
の解除を簡単にすることができるし、第２に構造を極め
て簡単にすることができる。According to the present invention, there is provided a lock body A1 provided with a bending portion 4 which can be bent and stretched in a substantially rectangular shape and which is urged in an extended state via an elastic body 7, and a direction in which the bending portion 4 expands and contracts. A main connecting body A provided with a lock releasing means A2 comprising a releasing body 10 which is screwed and moved to a screw rod 11 provided substantially orthogonal to the bending member 4 and which can press the bending / extending portion 4; Consisting of
The connecting member for the construction work machine is constructed such that the leading end of the lock body A1 protrudes toward the connected member B side and is elastically connected through contact between the main connected member A and the connected member B, thereby providing a main connecting member. A can be instantaneously connected to the object B, and the lock can be easily released. Secondly, the structure can be extremely simplified.

【００４６】上記効果を詳述すると、主連結体Ａに設け
たロック体Ａ1 は、主連結体Ａと、被連結体Ｂとの接触
時にロック体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。In detail, the lock body A1 provided on the main connected body A protrudes toward the connected body B when the main connected body A comes into contact with the connected body B and penetrates. Thereby, the connection between the main linked body A and the linked body B can be performed almost instantaneously.

【００４７】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
みにてロック体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 lock body A1 projects and penetrates to the connected object B side. Operation can be extremely simple,
In addition, since the connection can be reliably performed, it is not necessary to check the connection state, and an operator involved in the connection can be eliminated.

【００４８】また、その連結状態は主連結体Ａに設けた
ロック体Ａ1 が被連結体Ｂ側に突出して貫通し、連結を
行っているので、ロック体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。Further, the connection state is such that the lock body A1 provided on the main connection body A projects and penetrates to the connected body B side and is connected, so that the lock body A1 is horizontally and vertically in the axial direction of the lock body A1. This is extremely strong against vibrations and shocks, and is extremely strong against vibrations and shocks as compared with a conventional locking type using a claw and a shaft, and can have durability.

【００４９】次に、ロック体Ａ1 は屈伸部４を弾性体７
を使用して伸び状態に常時付勢しているので、一旦ロッ
ク体Ａ1 に対してロック状態とすると、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, the lock body A1 is configured such that the bending portion 4 is
Is used to constantly urge the lock body A1 into the extended state, so that once the lock body A1 is locked, the extremely strong lock state can be maintained until the lock is released.

【００５０】さらに、ロック体Ａ1 には、略く字状に屈
伸自在な屈伸部４を設け、ロック解除手段Ａ2 は前記屈
伸部４の伸縮方向に略直交状に設けた送り螺子杆１１と
該送り螺子杆１１に螺合し、その軸方向に沿って移動可
能な解除体１０を設けているので、解除体１０は前記屈
伸部４の伸縮方向に直交状に当接して押圧可能となる。Further, the lock body A1 is provided with a bending portion 4 which can be bent and stretched in a substantially rectangular shape, and the unlocking means A2 is provided with a feed screw rod 11 provided in a direction substantially perpendicular to the direction of expansion and contraction of the bending portion 4. Since the release body 10 which is screwed to the feed screw rod 11 and is movable along the axial direction thereof is provided, the release body 10 can be pressed against the expansion / contraction section 4 in a direction perpendicular to the expansion and contraction direction.

【００５１】それゆえに、主連結体Ａと被連結体Ｂとが
連結し、そのロック体Ａ1 が被連結体Ｂ側に突出且つ貫
通した状態で、被連結体Ｂ側から受ける荷重にて強く圧
接したときにロック体Ａ1 が被連結体Ｂ側から抜けにく
くなる場合が生じ、そのロック体Ａ1 を被連結体Ｂより
抜き出すのに大きな力が必要となるが、ロック体Ａ1の
屈伸部４に対してその伸縮方向に直交する方向から解除
体１０の押圧力が作用するために、ロック状態で伸びき
った屈伸部４はこれに直交する僅かの力にてロック体Ａ
1 のロック側が解除方向に移動するとともに、あとは解
除体１０が送り螺子杆１１に螺合して移動することで比
較的僅かの力でロックの解除ができ、作業員の負担を減
少させることができる。Therefore, in a state where the main connecting body A and the connected body B are connected, and the lock body A1 protrudes and penetrates the connected body B side, it is strongly pressed by the load received from the connected body B side. When the lock body A1 is hardly pulled out of the connected body B when the lock body A1 is pulled out, a large force is required to pull out the lock body A1 from the connected body B. Since the pressing force of the release body 10 acts from a direction perpendicular to the direction of extension and contraction, the bending / extending portion 4 which has been fully extended in the locked state can be locked by a slight force perpendicular to this.
(1) The lock side moves in the release direction, and the release body 10 is then screwed into the feed screw rod 11 to move, so that the lock can be released with a relatively small force, thereby reducing the burden on the operator. Can be.

【００５２】[0052]

【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】ロック体及びロック解除手段を示す要部断面図FIG. 4 is a sectional view of a main part showing a lock body and a lock release means.

【図５】（ａ）はロック体及びロック解除手段の要部斜
視図 （ｂ）はロック解除手段の要部断面図FIG. 5A is a perspective view of a main part of a lock body and a lock release unit. FIG. 5B is a cross-sectional view of a main part of a lock release unit.

【図６】（ａ）はブーム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FIG. 6A is a schematic view showing a state in which an attachment is attached to the end of a boom. FIG. 6B is a schematic view in which a connected body is provided integrally with the attachment.

【図７】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. 7 is a longitudinal sectional side view showing a state in which the main connected body and the connected body are engaged at one end in the front-rear direction.

【図８】主連結体と被連結体とをロックする前の状態を
示す縦断平面図FIG. 8 is a vertical cross-sectional view showing a state before locking the main connected body and the connected body.

【図９】係止用アームがロック体から外れロックする状
態を示す要部縦断側面図FIG. 9 is a longitudinal sectional side view of a main part showing a state in which the locking arm is released from the lock body and locked.

【図１０】ロック体のロック頭部を一基とした本発明の
縦断平面図FIG. 10 is a vertical cross-sectional view of the present invention based on one lock head of a lock body.

【符号の説明】[Explanation of symbols]

Ａ…主連結体 Ａ1 …ロック体 ４…屈伸部 ７…弾性体 Ａ2 …ロック解除手段 １０…解除体 １１…螺子杆 Ｂ…被連結体 A: Main connection body A1: Lock body 4: Bending / extending portion 7: Elastic body A2: Lock release means 10: Release body 11: Screw 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 3/40──────────────────────────────────────────────────続 き Continuing on the front page (72) Kunihiko Matsui, 314 Chikusa-cho, Hanamigawa-ku, Chiba-shi, Japan Inside Sakado Works (72) Inventor Isamu Nagayoshi 314 Chikusa-cho, Hanamigawa-ku, Chiba-shi, Japan Sakado Works ( 72) Inventor Toshiyuki Kuno 314 Chikusa-cho, Hanamigawa-ku, Chiba-shi Inside the Sakado Works, Ltd. (72) Inventor Masayuki Asai 314 Chigusa-cho, Hanamigawa-ku, Chiba-shi Inside the Sakado Works, Inc. (72) Inventor Toshifumi Toshima Chiba 314 Chikusa-cho, Hanamigawa-ku Inside Sakado Machinery Works, Ltd. (56) References Japanese Utility Model Showa Sho 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】 略く字状に屈伸自在とし、且つ弾性体を
介して伸び状態に付勢した屈伸部を設けたロック体と、
前記屈伸部の伸縮方向に略直交して設けた螺子杆に螺合
して移動し、前記屈伸部を押圧可能な解除体からなるロ
ック解除手段とを設けた主連結体と、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体先端が被
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 body provided with a bending / extending portion which can be bent and stretched in a substantially rectangular shape and which is urged in an extended state via an elastic body;
A main coupling body provided with unlocking means that is engaged with a screw rod provided substantially perpendicular to the extension and contraction direction of the bending and extending portion, and is provided with a release body capable of pressing the bending and extending portion; And a connecting member for a construction work machine, wherein a leading end of the lock body projects and penetrates through the connected body side and is resiliently connected when the main connected body and the connected body come into contact with each other.
JP5081172A 1993-03-17 1993-03-17 Connector for construction work machine Expired - Lifetime JP2809257B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5081172A JP2809257B2 (en) 1993-03-17 1993-03-17 Connector for construction work machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5081172A JP2809257B2 (en) 1993-03-17 1993-03-17 Connector for construction work machine

Publications (2)

Publication Number Publication Date
JPH06272270A JPH06272270A (en) 1994-09-27
JP2809257B2 true JP2809257B2 (en) 1998-10-08

Family

ID=13739048

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5081172A Expired - Lifetime JP2809257B2 (en) 1993-03-17 1993-03-17 Connector for construction work machine

Country Status (1)

Country Link
JP (1) JP2809257B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01101977U (en) * 1987-12-26 1989-07-10

Also Published As

Publication number Publication date
JPH06272270A (en) 1994-09-27

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