JP2009191519A - Coupler device for construction machine - Google Patents

Coupler device for construction machine Download PDF

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JP2009191519A
JP2009191519A JP2008033278A JP2008033278A JP2009191519A JP 2009191519 A JP2009191519 A JP 2009191519A JP 2008033278 A JP2008033278 A JP 2008033278A JP 2008033278 A JP2008033278 A JP 2008033278A JP 2009191519 A JP2009191519 A JP 2009191519A
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holder
locking claw
coupler
locking
hydraulic
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JP4896050B2 (en
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Motohiro Ishii
基寛 石井
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Hitachi Construction Machinery Co Ltd
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Hitachi Construction Machinery Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a coupler device for a construction machine enabling the easy and quick connection and disconnection of female and male couplers with less labor and capable of surely holding the connected state. <P>SOLUTION: A frame body 54 is attached to a first holder 49 for holding one coupler 48 of the mutually fitted female and male couplers. The other coupler 46 is held on a second holder 57. The second holder 57 is installed slidably relative to a frame body 54. A hydraulic cylinder 69 for engaging and separating the couplers 46, 48 with and from each other is installed between the second holder 57 and the frame body 54. A movable locking claw 77 is installed on the second holder 57, and a locking part 80 is formed on the frame body 54. With the locking claw 77 locked to the locking part 80 of the frame body 54, the engaged state of the couplers 46, 48 is held. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、輸送時に分解される比較的大型の油圧ショベル、クレーンあるいはこれらの応用機械として構成される建設機械において、分離される構成部品にそれぞれ添設される油圧配管同士の接続に用いられるカプラ装置に関する。   The present invention relates to a coupler used for connecting hydraulic pipes respectively attached to components to be separated in a construction machine configured as a relatively large hydraulic excavator, crane or application machine thereof to be disassembled during transportation. Relates to the device.

大型の建設機械においては、輸送時の重量制限やサイズの制限をクリアするため、構成部品の一部を他の構成部品から分離して輸送することが行われる。例えば作業用フロント（ブーム、アームおよびアームの先端に取付けるバケット、ブレーカ、破砕具等の作業具）を本体から分離して輸送したり、さらにブーム、アームを分離輸送したり、クローラを上部旋回体から分離輸送したりする。このような分離輸送にあたり、分離する部品にそれぞれ添設される油圧配管は部品の分離箇所において同時に分離され、作業現場において接続される。このような油圧配管の分離、接続を行なうため、特許文献１に記載のように雌雄のカプラ（継手）からなるカプラ装置が設けられる。このような従来のカプラ装置として、作業員が人力により雌雄のカプラ同士を押圧、引き抜いて嵌合、分離するものと、ねじを用いて嵌合、分離するものとがある。   In a large construction machine, in order to clear weight restrictions and size restrictions at the time of transportation, a part of the component parts is transported separately from other component parts. For example, work fronts (booms, arms and work tools such as buckets, breakers, crushing tools attached to the ends of the arms) are transported separately from the main body, and the booms and arms are transported separately. Or transported separately. In such separation and transportation, the hydraulic pipes attached to the parts to be separated are simultaneously separated at the parts separation parts and connected at the work site. In order to separate and connect such hydraulic pipes, a coupler apparatus composed of male and female couplers (joints) is provided as described in Patent Document 1. As such conventional coupler apparatuses, there are an apparatus in which an operator presses and pulls male and female couplers together to fit and separate, and an apparatus that uses screws to fit and separate.

特開２００５−６１０６１号公報JP 2005-61061 A

従来のカプラ装置のうち、人力を用いて雌雄のカプラ同士を押圧、引き抜いて接続、分離するものは、建設機械が大型になると、油圧配管に内圧が存在する場合に、多大の労力を要し、接続が困難になるという問題点がある。また、ねじを用いて雌雄のカプラ同士を締結する構造のカプラ装置においては、接続、分離に手間を要するという問題点がある。特に大型のカプラの入手が困難であって、１つの油路ラインに対して２対のカプラを準備する必要がある場合、接続すべきカプラ数が２倍となり、接続、分離に要する手間、労力が多大となり、現場における段取り時間が長くかかることになる。   Of the conventional coupler devices, those that use male power to press and pull the male and female couplers together to connect and separate them require a great deal of labor when the construction machine becomes large and there is internal pressure in the hydraulic piping. There is a problem that connection becomes difficult. In addition, a coupler apparatus having a structure in which male and female couplers are fastened using screws has a problem that it takes time to connect and separate. In particular, when it is difficult to obtain a large coupler and it is necessary to prepare two pairs of couplers for one oil passage line, the number of couplers to be connected is doubled, and the labor and labor required for connection and disconnection are reduced. Will be enormous, and it will take a long time for setup at the site.

そこで、油圧シリンダを用いてカプラ同士の接続、分離を行なうことが考えられる。しかしながら、油圧シリンダでカプラの接続、分離を行う場合、油漏れあるいは油圧回路のトラブルにより接続状態が維持できなくなる恐れがあるという問題点がある。   Therefore, it is conceivable to connect and disconnect the couplers using a hydraulic cylinder. However, when connecting and disconnecting a coupler with a hydraulic cylinder, there is a problem that the connected state may not be maintained due to oil leakage or a hydraulic circuit trouble.

本発明は、上記の点に鑑み、雌雄のカプラ同士の接続、分離が労力少なく容易に行え、接続、分離が迅速に行えると共に、接続状態が確実に保持できる建設機械用カプラ装置を提供することを目的とする。   In view of the above points, the present invention provides a coupler apparatus for a construction machine that can be easily connected and disconnected between male and female couplers with less labor, can be quickly connected and disconnected, and can reliably maintain a connected state. With the goal.

請求項１の建設機械用カプラ装置は、建設機械の分離、連結可能な複数の構成部品にそれぞれ添設される油圧配管同士を互いに分離可能に接続する建設機械用カプラ装置において、
互いに嵌合される雌雄のカプラのうちの一方のカプラを保持する第１のホルダと、
前記第１のホルダに設けられた枠体と、
互いに嵌合される雌雄のカプラのうちの他方のカプラを保持すると共に、前記枠体に対して相対的に摺動可能に設けられる第２のホルダと、
前記第２のホルダと前記枠体との間に設けられ、前記第１のホルダと前記第２のホルダとの間を近接、離反させてカプラ同士を嵌合、分離する油圧シリンダと、
前記第２のホルダに設けたガイド部に沿って摺動可能に取付けられる係止爪と、
前記枠体に凹状に設けられ、前記係止爪が挿嵌される係止爪係止部と、
前記第２のホルダに設けられ、前記係止爪を前記係止爪係止部に対して挿嵌する位置と離間する非係止位置とで保持する係止爪保持手段とを備えた
ことを特徴とする。 The construction machine coupler apparatus according to claim 1, wherein the construction machine coupler apparatus connects the hydraulic pipes respectively attached to a plurality of components that can be separated and connected to each other in a separable manner.
A first holder for holding one of the male and female couplers fitted together;
A frame provided on the first holder;
A second holder that holds the other of the male and female couplers fitted to each other and is slidable relative to the frame;
A hydraulic cylinder that is provided between the second holder and the frame, and that fits and separates the couplers by bringing the first holder and the second holder close and apart from each other;
A locking claw that is slidably attached along a guide portion provided in the second holder;
A locking claw locking portion that is provided in a concave shape in the frame and into which the locking claw is inserted;
Locking claw holding means provided on the second holder and holding the locking claw at a position where the locking claw is inserted into the locking claw locking portion and a non-locking position where the locking claw is separated from the locking claw locking portion Features.

請求項２の建設機械用カプラ装置は、請求項１に記載の建設機械用カプラ装置において、
前記係止爪保持手段は、前記係止爪にその変位方向に間隔を有して設けられた２つの凹部に対して弾性的に押圧嵌合され、前記係止爪係止部に対する係止位置、非係止位置をそれぞれ保持する係合体を備えたものである
ことを特徴とする。 A construction machine coupler apparatus according to claim 2 is the construction machine coupler apparatus according to claim 1,
The locking claw holding means is elastically pressed and fitted to two concave portions provided on the locking claw with a gap in the displacement direction, and is locked to the locking claw locking portion. And an engaging body for holding the non-locking positions.

請求項３の建設機械用カプラ装置は、請求項１または２に記載の建設機械用カプラ装置において、
前記油圧シリンダへ供給する圧油を制御するコントロール弁が３位置切換弁でなり、前記コントロール弁は、中立位置において、前記油圧シリンダのボトム室およびロッド室が油タンクに連通する構成を有する
ことを特徴とする。 A construction machine coupler apparatus according to claim 3 is the construction machine coupler apparatus according to claim 1 or 2,
The control valve for controlling the pressure oil supplied to the hydraulic cylinder is a three-position switching valve, and the control valve has a configuration in which the bottom chamber and the rod chamber of the hydraulic cylinder communicate with the oil tank in the neutral position. Features.

請求項４の建設機械用カプラ装置は、請求項１から３までのいずれか１項に記載の建設機械用カプラ装置において、
前記第１のホルダと前記第２のホルダと前記油圧シリンダとを１つの油圧アクチュエータ対応のユニットとしてそれぞれ備えた
ことを特徴とする。 The coupler apparatus for a construction machine according to claim 4 is the coupler apparatus for a construction machine according to any one of claims 1 to 3,
The first holder, the second holder, and the hydraulic cylinder are provided as units corresponding to one hydraulic actuator, respectively.

請求項１の発明によれば、油圧シリンダの力を利用して雌雄カプラの接続、分離を行うため、油圧配管の内部に内圧が残留する大型建設機械の油圧配管の接続、分離も人力による労力を要することなく、容易かつ迅速に行える。したがって、現場における段取り時間や輸送にあたっての建設機械の分解に要する時間の短縮が可能となる。また、係止爪によりホルダの位置が雌雄のカプラ同士の嵌合位置、分離位置に保持されるため、雌雄のカプラ同士を嵌合した状態において、油圧シリンダを駆動状態にしておく必要がなく、駆動状態における油漏れあるいは油圧回路のトラブルによるカプラ同士の外れの問題の発生を回避できる。   According to the first aspect of the present invention, since the male and female couplers are connected and disconnected using the force of the hydraulic cylinder, the connection and separation of the hydraulic piping of a large construction machine in which the internal pressure remains in the hydraulic piping is also labor-intensive. Can be done easily and quickly. Therefore, it is possible to shorten the setup time at the site and the time required for disassembling the construction machine during transportation. In addition, since the position of the holder is held at the fitting position and the separating position between the male and female couplers by the locking claws, it is not necessary to keep the hydraulic cylinder in a driving state in a state where the male and female couplers are fitted together. It is possible to avoid the occurrence of the problem of disconnection between the couplers due to oil leakage in the driving state or trouble in the hydraulic circuit.

請求項２の発明によれば、係止爪に設けた２つの凹部のいずれかに対し、係合体が弾性的に係合することにより、係止爪が固定され、係止爪と枠体の係止爪係止部との係止位置、非係止位置の保持が人力による操作を行うことなく自動的に確実に行える。   According to the second aspect of the present invention, the engaging claw is elastically engaged with any one of the two recesses provided in the engaging claw so that the engaging claw is fixed, and the engaging claw and the frame body The locking position and the non-locking position with the locking claw locking portion can be automatically and reliably maintained without any manual operation.

請求項３の発明によれば、雌雄のカプラ同士を嵌合、分離する油圧シリンダのコントロール弁の中立位置において、前記油圧シリンダのボトム室およびロッド室を油タンクに連通しておくことができるため、油圧シリンダに与える負担が軽減され、油圧シリンダを延命化することができる。   According to the invention of claim 3, the bottom chamber and the rod chamber of the hydraulic cylinder can be communicated with the oil tank at the neutral position of the control valve of the hydraulic cylinder for fitting and separating the male and female couplers. The burden on the hydraulic cylinder is reduced, and the life of the hydraulic cylinder can be extended.

請求項４の発明によれば、前記第１のホルダと第２のホルダと油圧シリンダとを１つの油圧アクチュエータ対応のユニットとしてそれぞれ備えたので、多関節フロントの構成変更や作業具の取替え等に伴って油圧ラインの増減を行う場合、ユニットの着脱によって容易に対応することができる。   According to the invention of claim 4, since the first holder, the second holder, and the hydraulic cylinder are respectively provided as a unit corresponding to one hydraulic actuator, the configuration change of the multi-joint front, the replacement of the work tool, etc. Accordingly, when the hydraulic line is increased or decreased, it can be easily handled by attaching and detaching the unit.

図１は本発明のカプラ装置を適用する建設機械の一例を示す側面図である。この建設機械は、下部走行体１上に旋回装置２を介して上部旋回体３を設置し、この上部旋回体３には油圧パワーユニット４や運転室５を設置して建設機械本体を構成する。上部旋回体３の前部にはフロント取付け用のブラケット６を設ける。このブラケット６には直接多関節フロント７を取付ける場合もあるが、この例においては、このブラケット６にピン９，１０によりアダプタ８を介して多関節フロント７を取付けている。   FIG. 1 is a side view showing an example of a construction machine to which the coupler apparatus of the present invention is applied. In this construction machine, an upper swing body 3 is installed on a lower traveling body 1 via a swing device 2, and a hydraulic power unit 4 and an operator cab 5 are installed on the upper swing body 3 to constitute a construction machine main body. A front mounting bracket 6 is provided at the front of the upper swing body 3. In some cases, the articulated front 7 is directly attached to the bracket 6. In this example, the articulated front 7 is attached to the bracket 6 via the adapter 8 by pins 9 and 10.

多関節フロント７は、アダプタ８にピン１１により起伏可能に取付けられた第１のアーム１２と、アダプタ８と第１アーム１２にそれぞれピン１３，１４により両端を連結して取付けられた第１のアームシリンダ１５と、第１のアーム１２の先端にピン１６により回動可能に取付けられた第２のアーム１７と、第１のアーム１２と第２のアーム１７にそれぞれピン１８，１９により両端を連結して取付けられた第２のアームシリンダ２０と、第２のアーム１７の先端にピン２１により回動可能に取付けられた第３のアーム２２と、第２のアーム１７と第３のアーム２２にそれぞれピン２３，２４により両端を連結して取付けられた第３のアームシリンダ２５とを有する。   The multi-joint front 7 includes a first arm 12 attached to the adapter 8 by a pin 11 so that it can be raised and lowered, and a first arm 12 attached to both ends of the adapter 8 and the first arm 12 by pins 13 and 14, respectively. Both ends of the arm cylinder 15, the second arm 17 rotatably attached to the tip of the first arm 12 by a pin 16, and pins 18 and 19 are attached to the first arm 12 and the second arm 17, respectively. The second arm cylinder 20 connected and connected, the third arm 22 rotatably attached to the tip of the second arm 17 by the pin 21, and the second arm 17 and the third arm 22 And a third arm cylinder 25 attached to both ends by pins 23 and 24, respectively.

この例では作業具としての破砕具２７がピン２８により第３のアーム２２の先端に回動可能に取付けられる。この破砕具２７を回動させるための作業具シリンダ２９の一端は第３のアーム２２にピン３０により連結される。作業具シリンダ２９の他端は、一端が第３のアーム２２にピン連結されたアームリンク３１および一端が破砕具２７にピン連結された作業具リンク３２の各他端にピン３３により連結される。作業具としては破砕具のみならず、掘削用バケット、ブレーカ、圧砕器等、その他の特殊作業具が交換可能に取付け可能である。   In this example, a crushing tool 27 as a working tool is rotatably attached to the tip of the third arm 22 by a pin 28. One end of a work tool cylinder 29 for rotating the crushing tool 27 is connected to the third arm 22 by a pin 30. The other end of the work tool cylinder 29 is connected by a pin 33 to each other end of an arm link 31 having one end pin-connected to the third arm 22 and a work tool link 32 having one end pin-connected to the crushing tool 27. . As work tools, not only crushing tools but also other special work tools such as excavation buckets, breakers, crushers and the like can be attached in a replaceable manner.

図２は上部旋回体３に設けたブラケット６とアダプタ８との間の油路の接続を行うカプラ装置の一実施の形態を示す側面図、図３は図２のＡ−Ａ断面図、図４は図２の背面図である。図２ないし図４において、３５は上部旋回体３上に設置されるコントロール弁（図示せず）に接続される油圧配管として設けられた可撓性を有する油圧ホースである。３６は多関節フロント７に添設される油圧配管として設けられた可撓性を有する油圧ホースである。３７は油圧ホース３５，３６間を接続するカプラ装置である。フロント側油圧ホース３６は、前記アームシリンダ１５，２０，２５並びに作業具シリンダ２９への作動油および破砕具２７に備える油圧シリンダ２７ａ（図１参照）や旋回モータ（図示せず）への作動油を供給するためのものである。   FIG. 2 is a side view showing an embodiment of a coupler apparatus for connecting an oil passage between a bracket 6 and an adapter 8 provided on the upper swing body 3, and FIG. 3 is a cross-sectional view taken along line AA in FIG. 4 is a rear view of FIG. 2 to 4, reference numeral 35 denotes a flexible hydraulic hose provided as a hydraulic pipe connected to a control valve (not shown) installed on the upper swing body 3. Reference numeral 36 denotes a flexible hydraulic hose provided as a hydraulic pipe attached to the articulated front 7. Reference numeral 37 denotes a coupler apparatus for connecting the hydraulic hoses 35 and 36. The front side hydraulic hose 36 includes hydraulic oil for the arm cylinders 15, 20, and 25 and the work tool cylinder 29, and hydraulic oil for the hydraulic cylinder 27 a (see FIG. 1) and a swing motor (not shown) provided in the crushing tool 27. It is for supplying.

この実施の形態においては、建設機械が大型であり、多関節フロント７に添設する大径の油圧ホース３６に対応する雌雄カプラを用いず、入手が容易な市販の雌雄カプラを用い、１本の油圧ホース３６に対して２対のカプラを使用して構成した例を示す。このため、フロント７側の１本の油圧ホース３６に対し、上部旋回体３側の油圧ホース３５は２本が対応する。この構成を実現するため、フロント側７には１本の油圧ホース３６をそれぞれ２本の中継ホース３９，３９に分流させるための分流装置４０を設ける。４１はこの分流装置４０をアダプタ８に取付けるための取付け板であり、この取付け板４１はボルト４４によりアダプタ８に取付けられる。分流装置４０は、取付け板４１にボルト４２によって取付けられる複数の分流ブロック４３からなる。各分流ブロック４３は、内部に分流させるための油路４３ａを設けたものであり、１本の油圧ホース３６に対し、２本の中継ホース３９，３９が内部の油路４３ａを通して連通する。   In this embodiment, the construction machine is large and does not use a male and female coupler corresponding to the large-diameter hydraulic hose 36 attached to the articulated front 7, but uses a commercially available male and female coupler that is easily available. An example in which two pairs of couplers are used for the hydraulic hose 36 is shown. For this reason, two hydraulic hoses 35 on the upper swing body 3 side correspond to one hydraulic hose 36 on the front 7 side. In order to realize this configuration, the front side 7 is provided with a flow dividing device 40 for dividing one hydraulic hose 36 into two relay hoses 39 and 39, respectively. Reference numeral 41 denotes an attachment plate for attaching the flow dividing device 40 to the adapter 8, and the attachment plate 41 is attached to the adapter 8 by a bolt 44. The flow dividing device 40 includes a plurality of flow dividing blocks 43 attached to a mounting plate 41 by bolts 42. Each of the diversion blocks 43 is provided with an oil passage 43a for diversion inside, and two relay hoses 39, 39 communicate with one hydraulic hose 36 through the internal oil passage 43a.

４５はボルト４６によってブラケット６に取付けられるカプラ装置取付け板である。フロント側油圧ホース３６の１本に対し、上部旋回体３側油圧ホース３５が２本設けられる関係上、１枚のフロント側取付け板４１に対し、上部旋回体３側に２枚の取付け板４５が設けられる。カプラ装置３７は、アームシリンダ１５，２０，２５、作業具シリンダ２９および破砕具２７の油圧シリンダ２７ａや旋回モータ対応にそれぞれ１つのユニット３７ａを構成して設けられる。ただし、一部の油圧アクチュエータはユニット間に跨がって配設される場合もある。各ユニット３７ａは、カプラ装置取付け板４５にボルト４７によって取付けられる。油圧ホース３５は、取付け板４５に設けた穴４５ａに通して設置される。   A coupler apparatus mounting plate 45 is attached to the bracket 6 by bolts 46. Since two upper revolving body 3 side hydraulic hoses 35 are provided for one front side hydraulic hose 36, two mounting plates 45 are provided on the upper revolving body 3 side with respect to one front side mounting plate 41. Is provided. The coupler device 37 is provided as one unit 37a corresponding to the arm cylinders 15, 20, 25, the working tool cylinder 29, the hydraulic cylinder 27a of the crushing tool 27, and the swing motor. However, some hydraulic actuators may be disposed across the units. Each unit 37 a is attached to the coupler apparatus mounting plate 45 by bolts 47. The hydraulic hose 35 is installed through a hole 45 a provided in the mounting plate 45.

図５ないし図１０はカプラ装置３７の構造を説明する図であり、図５はカプラ同士を接続した状態を示す斜視図、図６はその分解斜視図、図７はその一部断面側面図、図８、図９はそれぞれカプラ同士を接続した状態、分離した状態で示す一部省略背面図、図１０は一部断面底面図である。   5 to 10 are views for explaining the structure of the coupler apparatus 37. FIG. 5 is a perspective view showing a state in which the couplers are connected to each other, FIG. 6 is an exploded perspective view thereof, and FIG. 8 and 9 are partially omitted rear views showing the couplers connected and separated, respectively, and FIG. 10 is a partially sectional bottom view.

図２〜図１０において、４６は上部旋回体３側油圧ホース３５の端部に設けた雌カプラ、４８は中継ホース３９の端部に設けられ、雌カプラ４６に嵌合される雄カプラである。４９は雄カプラ４８を保持する第１のホルダである。図６に示すように、第１のホルダ４９の片面にはＵ字形の取付け溝４９ａが設けられ、この取付け溝４９ａの内面に抜け止め溝４９ｂを有する。雄カプラ４８は鍔部４８ａを有し、この鍔部４８ａを第１のホルダ４９の抜け止め溝４９ｂに嵌めた状態で取付け溝４９ａに嵌め、固定板５１を第１のホルダ４９の外面に当て、この固定板５１に設けたボルト挿通孔５２にボルト５８を通し、第１のホルダ４９に設けたねじ孔５３に螺合することにより、雄カプラ４８が第１のホルダ４９に着脱可能に固定される。   2 to 10, 46 is a female coupler provided at the end of the upper swing body 3 side hydraulic hose 35, and 48 is a male coupler provided at the end of the relay hose 39 and fitted to the female coupler 46. . Reference numeral 49 denotes a first holder for holding the male coupler 48. As shown in FIG. 6, a U-shaped attachment groove 49a is provided on one surface of the first holder 49, and a retaining groove 49b is provided on the inner surface of the attachment groove 49a. The male coupler 48 has a flange portion 48a. The flange portion 48a is fitted in the mounting groove 49a in a state where the flange portion 48a is fitted in the retaining groove 49b of the first holder 49, and the fixing plate 51 is applied to the outer surface of the first holder 49. The male coupler 48 is detachably fixed to the first holder 49 by passing the bolt 58 through the bolt insertion hole 52 provided in the fixing plate 51 and screwing it into the screw hole 53 provided in the first holder 49. Is done.

図６に示すように、第１のホルダ４９には枠体５４が設けられる。図７〜図９に示すように、枠体５４は左右の縦枠５４ａと横枠５４ｂとがボルト５５により結合されたものである。この枠体５４は、左右の縦枠５４ａの一端を第１のホルダ４９に設けた取付け穴４９ｃに嵌合し、ボルト５６によって第１のホルダ４９に固定して取付けられる。   As shown in FIG. 6, the first holder 49 is provided with a frame 54. As shown in FIG. 7 to FIG. 9, the frame body 54 is one in which left and right vertical frames 54 a and horizontal frames 54 b are coupled by bolts 55. The frame body 54 is fixedly attached to the first holder 49 with a bolt 56 by fitting one end of each of the left and right vertical frames 54 a into an attachment hole 49 c provided in the first holder 49.

５７は雌カプラ４６は保持する第２のホルダである。図６に示すように、第２のホルダ５７は、両側面に矩形の凹部５７ａを有し、これらの凹部５７ａにそれぞれ枠体５４の縦枠５４ａを嵌め、図８〜図１０に示すように、縦枠５４ａの外側および第２のホルダ５７の側面に蓋板５９を当ててボルト６１によって第２のホルダ５７に固定する。これにより、第２のホルダ５７と枠体５４とは縦枠５４ａの長手方向に相対的に移動可能に組み合わせる。   Reference numeral 57 denotes a second holder for holding the female coupler 46. As shown in FIG. 6, the second holder 57 has rectangular recesses 57a on both side surfaces, and the vertical frames 54a of the frame bodies 54 are fitted into these recesses 57a, respectively, as shown in FIGS. The lid plate 59 is applied to the outside of the vertical frame 54 a and the side surface of the second holder 57, and is fixed to the second holder 57 with the bolt 61. Accordingly, the second holder 57 and the frame body 54 are combined so as to be relatively movable in the longitudinal direction of the vertical frame 54a.

図６に示すように、第２のホルダ５７は背面にＵ字形の取付け溝５７ｂを有し、この取付け溝５７ｂは先端に内周に突出した突出部５７ｃを有する。雌カプラ４６は先端に抜け止め用のくびれ部４６ａを有する。雌カプラ４６は、くびれ部４６ａを突出部５７ｃに嵌めて取付け溝５７ｂに雌カプラ４６を嵌め、固定板６４を第２のホルダ５７と雌カプラ４６の背面に当て、この固定板６４に設けたボルト挿通孔６５にボルト６３を通し、第２のホルダ５７に設けたねじ孔６６に螺合することにより、雌カプラ４６が第２のホルダ５７に固定される。この第２のホルダ５７はボルト４７により取付け板４５に固定される。   As shown in FIG. 6, the second holder 57 has a U-shaped attachment groove 57b on the back surface, and the attachment groove 57b has a protruding portion 57c protruding to the inner periphery at the tip. The female coupler 46 has a constricted portion 46a for preventing the female coupler 46 from coming off. The female coupler 46 is provided on the fixing plate 64 by fitting the constricted portion 46a to the projecting portion 57c, fitting the female coupler 46 to the mounting groove 57b, and contacting the fixing plate 64 against the second holder 57 and the back surface of the female coupler 46. The female coupler 46 is fixed to the second holder 57 by passing the bolt 63 through the bolt insertion hole 65 and screwing it into the screw hole 66 provided in the second holder 57. The second holder 57 is fixed to the mounting plate 45 by bolts 47.

６９はカプラ同士を嵌合、分離する油圧シリンダである。この油圧シリンダ６９は、図８〜図１０に示すように、チューブ側をボルト７０によって第２のホルダ５７に固定し、ロッド側を枠体５４の横枠５４ｂにボルト７１によって固定することにより、第２のホルダ５７と枠体５４との間に取付けられる。図９に示すように油圧シリンダ６９を収縮させた状態においては、雌カプラ４６と雄カプラ４８とは分離状態にあり、油圧シリンダ６９の伸長により、図８に示すように雌カプラ４６と雄カプラ４８とが結合される。図５に示すように、各油圧シリンダ６９のボトム室は互いに油圧ホース７２によって並列に接続され、ロッド室も互いに油圧ホース７３により並列に接続される。   Reference numeral 69 denotes a hydraulic cylinder for fitting and separating the couplers. As shown in FIGS. 8 to 10, the hydraulic cylinder 69 has a tube side fixed to the second holder 57 by a bolt 70 and a rod side fixed to the horizontal frame 54 b of the frame body 54 by a bolt 71. It is attached between the second holder 57 and the frame body 54. When the hydraulic cylinder 69 is contracted as shown in FIG. 9, the female coupler 46 and the male coupler 48 are in a separated state, and the extension of the hydraulic cylinder 69 causes the female coupler 46 and the male coupler as shown in FIG. 48 are combined. As shown in FIG. 5, the bottom chambers of the hydraulic cylinders 69 are connected to each other in parallel by a hydraulic hose 72, and the rod chambers are also connected to each other in parallel by a hydraulic hose 73.

図１１は油圧シリンダ６９を伸縮させる油圧回路である。７４は上部旋回体３上の油圧パワーユニット４に含まれる油圧源、７５は同じく油タンク、７６はコントロール弁である。コントロール弁７６は上部旋回体３上に設置されたコントロール弁用の予備のポートに接続される。このコントロール弁７６は、図示の上位置に切換えられると油圧シリンダ６９が伸長し、下位置に切換えらえると油圧シリンダ６９が収縮し、中立位置においては、油圧シリンダ６９のボトム室、ロッド室が共に油タンク７５に連通する構成を有する。   FIG. 11 shows a hydraulic circuit for expanding and contracting the hydraulic cylinder 69. 74 is a hydraulic pressure source included in the hydraulic power unit 4 on the upper swing body 3, 75 is an oil tank, and 76 is a control valve. The control valve 76 is connected to a spare port for the control valve installed on the upper swing body 3. When the control valve 76 is switched to the upper position shown in the figure, the hydraulic cylinder 69 extends, and when the control valve 76 is switched to the lower position, the hydraulic cylinder 69 contracts. In the neutral position, the bottom chamber and the rod chamber of the hydraulic cylinder 69 are opened. Both are configured to communicate with the oil tank 75.

図５、図６、図１２において、７７は油圧シリンダ６９を伸長させてカプラ４６，４８同士を嵌合させた状態でこの嵌合状態を保持するために設けられた係止爪である。７８は左右の係止爪７７間に設けられ、両端をボルト７９により締結して設けた係止爪操作用ハンドルである。図６に示すように、この係止爪７７は、第２のホルダ５７の両側面に設けた凹部５７ｄと前記蓋板５９とからなるガイド部に摺動可能に嵌め込まれて取付けられている。８０は枠体５４の縦枠５４ａに係止爪７７の係止部として設けられた凹部である。   In FIGS. 5, 6, and 12, reference numeral 77 denotes a locking claw provided to hold the fitting state in a state where the hydraulic cylinder 69 is extended and the couplers 46 and 48 are fitted to each other. Reference numeral 78 denotes a locking claw operating handle provided between the left and right locking claws 77 and having both ends fastened by bolts 79. As shown in FIG. 6, the latching claw 77 is slidably fitted into and attached to a guide portion composed of a concave portion 57 d provided on both side surfaces of the second holder 57 and the lid plate 59. Reference numeral 80 denotes a recess provided as a locking portion of the locking claw 77 on the vertical frame 54 a of the frame body 54.

図６および図１２において、８１は係止爪７７の凹部８０に対する係止位置、非係止位置をそれぞれ保持する係合体として設けられた球体である。この球体８１は、第２のホルダ５７に設けたねじ孔８２内に嵌合され、係止爪７７の側面に当接する。８３はこの球体８１を係止爪７７に対して押圧する弾性体として備えたばねである。８４はこのばね８３の弾性力を受けるためにねじ孔８２に螺合して取付けたボルトである。係止爪７７の球体８１との当接面には係止爪７７の変位方向に間隔を有して２つの凹部７７ａ，７７ｂを有する。８５は係止爪７７の抜け止め用ストッパであり、このストッパ８５は第２のホルダ５７の端面にボルト８６によって固定され、係止爪７７の段部７７ｃがストッパ８５に当接することにより、係止爪７７が抜け止めされる。   6 and 12, reference numeral 81 denotes a spherical body provided as an engaging body that holds the locking position and the non-locking position of the locking claw 77 with respect to the recess 80. The sphere 81 is fitted into a screw hole 82 provided in the second holder 57 and abuts against the side surface of the locking claw 77. Reference numeral 83 denotes a spring provided as an elastic body that presses the sphere 81 against the locking claw 77. A bolt 84 is screwed into the screw hole 82 to receive the elastic force of the spring 83. The contact surface of the locking claw 77 with the sphere 81 has two recesses 77a and 77b with a gap in the displacement direction of the locking claw 77. Reference numeral 85 denotes a stopper for preventing the locking claw 77 from coming off. This stopper 85 is fixed to the end surface of the second holder 57 by a bolt 86, and the stepped portion 77 c of the locking claw 77 abuts against the stopper 85. The pawl 77 is prevented from coming off.

このカプラ装置を用いて雌雄のカプラ４６，４８の接続を行う場合の手順は以下の通りである。接続を行う前の状態においては、油圧シリンダ６９は収縮状態にしてある。取付け板４１に固定してある中継ホース３９の端部の雄カプラ４８を、取付け板４５に取付けられているカプラ装置３７の第１のホルダ４９の取付け溝４９ａに嵌め、固定板５１を雄カプラ４８に被せ、ボルト５８でこの固定板５１を第１のホルダ４９に固定することにより、雄カプラ４８を第１のホルダ４９に保持させる。一方、雌カプラ４８は、予め第２のホルダ５７に固定板６４およびボルト６３により固定しておく。この状態を図９に示す。ただし、図９においては、固定板５１，６４の図示を省略している。また、このとき、係止爪７７は段部７７ｃがストッパ８５に当接した状態（図１２の２点鎖線で示す）としておく。このとき、球体８１は係止爪７７の先端側の凹部７７ａに嵌合されている。   The procedure for connecting male and female couplers 46 and 48 using this coupler apparatus is as follows. Before the connection, the hydraulic cylinder 69 is in a contracted state. The male coupler 48 at the end of the relay hose 39 fixed to the attachment plate 41 is fitted into the attachment groove 49a of the first holder 49 of the coupler device 37 attached to the attachment plate 45, and the fixation plate 51 is fitted to the male coupler. 48 and the male coupler 48 is held by the first holder 49 by fixing the fixing plate 51 to the first holder 49 with bolts 58. On the other hand, the female coupler 48 is fixed to the second holder 57 in advance by a fixing plate 64 and a bolt 63. This state is shown in FIG. However, illustration of the fixing plates 51 and 64 is omitted in FIG. At this time, the locking claw 77 is in a state where the stepped portion 77c is in contact with the stopper 85 (indicated by a two-dot chain line in FIG. 12). At this time, the sphere 81 is fitted in the recess 77 a on the distal end side of the locking claw 77.

次に図１１において、油圧シリンダ６９のコントロール弁７６を上位置に切換え、油圧シリンダ６９を伸長させる。ここで、第２のホルダ５７は取付け板４５に固定されているので、油圧シリンダ６９の伸長により枠体５４が第１のホルダ４９と共に下降し、第２のホルダ５７に保持された雌カプラ４６に第１のホルダ４９に保持された雄カプラ４８が嵌合され、両カプラ４６，４８の嵌合、接続が行われる。   Next, in FIG. 11, the control valve 76 of the hydraulic cylinder 69 is switched to the upper position, and the hydraulic cylinder 69 is extended. Here, since the second holder 57 is fixed to the mounting plate 45, the frame body 54 is lowered together with the first holder 49 by the extension of the hydraulic cylinder 69, and the female coupler 46 held by the second holder 57. The male coupler 48 held by the first holder 49 is fitted, and the couplers 46 and 48 are fitted and connected.

このように雌雄のカプラ４６，４８が嵌合、接続された状態において、図１３に示すように、左右の係止爪７７，７７間に設けられたハンドル７８を押して図１２の実線に示すように、係止爪７７の先端を縦枠５４ａに設けた凹部８０に挿入する。この係止爪７７の押し込み操作において、当初は球体８１はばね８３により係止爪７７に設けた凹部７７ａに加圧して嵌め込まれた状態であり、係止爪７７が凹部８０との非係止位置に保持される。この状態から係止爪７７を押し込むと、球体８１がばね８３の力に抗して浮き上がり、続いて係止爪７７が凹部８０に差し込まれると、球体８１がばね８３の力により係止爪７７の凹部７７ｂに自動的に嵌まり込む。この球体８１の凹部７７ｂへのばね８３による押圧力、嵌り込みにより、振動等によって係止爪７７が凹部８０から抜け出ることを阻み、係止状態を保持する。このように係止爪７７を凹部８０に嵌めて係止した状態にした後、図１１に示すコントロール弁７６を中立位置に切換え、油圧シリンダ６９のボトム室６９ａとロッド室６９ｂを油タンク７５に連通させ、ボトム室６９ａとロッド室６９ｂをタンク圧（無圧）とする。   In this state where the male and female couplers 46 and 48 are fitted and connected, as shown in FIG. 13, the handle 78 provided between the left and right locking claws 77 and 77 is pushed, as shown by the solid line in FIG. Then, the tip of the locking claw 77 is inserted into the recess 80 provided in the vertical frame 54a. In the pushing operation of the locking claw 77, the sphere 81 is initially in a state of being pressed and fitted into the recess 77a provided in the locking claw 77 by the spring 83, and the locking claw 77 is not locked to the recess 80. Held in position. When the latching claw 77 is pushed in from this state, the sphere 81 is lifted against the force of the spring 83, and when the latching claw 77 is subsequently inserted into the recess 80, the sphere 81 is latched by the force of the spring 83. Automatically fit into the recess 77b. Due to the pressing force and fitting by the spring 83 to the concave portion 77b of the sphere 81, the locking claw 77 is prevented from coming out of the concave portion 80 due to vibration or the like, and the locked state is maintained. After the locking claw 77 is fitted and locked in the recess 80 in this way, the control valve 76 shown in FIG. 11 is switched to the neutral position, and the bottom chamber 69 a and the rod chamber 69 b of the hydraulic cylinder 69 are connected to the oil tank 75. The bottom chamber 69a and the rod chamber 69b are set to tank pressure (no pressure).

このように、このカプラ装置は、油圧シリンダ６９の力を利用して雌雄カプラ４６，４８の接続、分離を行うため、大型建設機械において、油圧ホース３５，３９の内部に内圧が残留する場合も、油圧ホース３５，３９の接続、分離も人力による労力を要することなく、容易かつ迅速に行える。したがって、現場における段取り時間や輸送にあたっての建設機械の分解に要する時間の短縮が可能となる。また、係止爪７７により第１のホルダ４９の位置が雌雄のカプラ４６，４８同士の嵌合位置、分離位置に保持されるため、雌雄のカプラ４６，４８同士を嵌合した状態において、油圧シリンダ６９を駆動状態にしておく必要がなく、駆動状態における油漏れあるいは油圧回路のトラブルによるカプラ同士の外れの問題の発生を回避できる。   In this way, since this coupler apparatus uses the force of the hydraulic cylinder 69 to connect and disconnect the male and female couplers 46 and 48, in large construction machines, internal pressure may remain inside the hydraulic hoses 35 and 39. The hydraulic hoses 35 and 39 can be connected and disconnected easily and quickly without requiring labor. Therefore, it is possible to shorten the setup time at the site and the time required for disassembling the construction machine during transportation. Further, since the position of the first holder 49 is held by the engaging claw 77 at the fitting position and the separating position between the male and female couplers 46 and 48, the hydraulic pressure is maintained in a state where the male and female couplers 46 and 48 are fitted together. It is not necessary to keep the cylinder 69 in a driving state, and it is possible to avoid the occurrence of a problem of disconnection between couplers due to oil leakage in the driving state or trouble in the hydraulic circuit.

また、本実施の形態においては、係止爪７７に設けた２つの凹部７７ａ，７７ｂのいずれかに対し、係合体である球体８１が弾性的に係合することにより、係止爪７７が固定され、係止爪７７と枠体５４の凹部８０との係止位置、非係止位置の保持が人力による操作を行うことなく自動的に確実に行える。なお、係合体としては、球体８１ではなく、素材自体が弾性を持つ曲成された板ばね等を用いてもよい。   Further, in the present embodiment, the locking claw 77 is fixed by elastically engaging the spherical body 81 as an engaging body with one of the two recesses 77a and 77b provided in the locking claw 77. Thus, the locking position and the non-locking position of the locking claw 77 and the recessed portion 80 of the frame body 54 can be automatically and reliably maintained without any manual operation. In addition, you may use the curved leaf | plate spring etc. with which the raw material itself has elasticity instead of the spherical body 81 as an engaging body.

また、本実施の形態においては、雌雄のカプラ４６，４８同士を嵌合、分離する油圧シリンダ６９のコントロール弁７６の中立位置において、油圧シリンダ６９のボトム室６９ａおよびロッド室６９ｂを油タンク７５に連通しておくことができるため、油圧シリンダ６９に与える油圧による負担が軽減され、油圧シリンダ６９を延命化することができる。   In the present embodiment, the bottom chamber 69a and the rod chamber 69b of the hydraulic cylinder 69 are placed in the oil tank 75 at the neutral position of the control valve 76 of the hydraulic cylinder 69 that engages and separates the male and female couplers 46 and 48. Since they can communicate with each other, a load caused by the hydraulic pressure applied to the hydraulic cylinder 69 is reduced, and the life of the hydraulic cylinder 69 can be extended.

また、本実施の形態においては、第１のホルダ４９と第２のホルダ５７と油圧シリンダ６９とを１つの油圧アクチュエータ対応のユニットとしてそれぞれ備えたので、多関節フロント７の構成変更や作業具の取替え等に伴って油圧ラインの増減を行う場合、ユニットの着脱によって容易に対応することができる。   In the present embodiment, the first holder 49, the second holder 57, and the hydraulic cylinder 69 are provided as units corresponding to one hydraulic actuator, respectively. When the hydraulic line is increased or decreased along with replacement or the like, it can be easily handled by attaching and detaching the unit.

本発明を実施する場合、第１のホルダ４９を取付け板４５に固定し、第２のホルダ５７を枠体５４の縦枠５４ａに沿って可動としてもよい。また、本発明は、上記実施の形態の多関節フロント７における上部旋回体３と第１のアーム１２との関節部以外の各構成部品の連結部に適用できる。本発明のカプラ装置が適用できる例として、例えば第１のアーム１と第２のアーム１２との間の関節部や第１のアーム１と第２のアーム１２との間の関節部、または作業具と第３のアーム２２との間の関節部、あるいは図示のように第１のアーム１２を下段アーム１２ａと上段アーム１２ｂで構成し、下段アーム１２ａと上段アーム１２ｂとを分離可能に連結する場合の連結部、もしくは下部走行体１の左右の走行用構造体をセンターフレームから分割輸送する構造等において、油圧配管をカプラによって接続する場合に本発明のカプラ装置を適用することができる。また、本発明は、多関節フロント構造以外のクレーン等、他の建設機械にも適用できる。   When implementing the present invention, the first holder 49 may be fixed to the mounting plate 45, and the second holder 57 may be movable along the vertical frame 54 a of the frame body 54. Further, the present invention can be applied to a connecting portion of each component other than the joint portion between the upper swing body 3 and the first arm 12 in the multi-joint front 7 of the above embodiment. As an example to which the coupler apparatus of the present invention can be applied, for example, a joint portion between the first arm 1 and the second arm 12, a joint portion between the first arm 1 and the second arm 12, or work The joint between the tool and the third arm 22, or the first arm 12 as shown in the figure is composed of a lower arm 12a and an upper arm 12b, and the lower arm 12a and the upper arm 12b are detachably connected. The coupler apparatus of the present invention can be applied to a case where the hydraulic piping is connected by a coupler in the connecting portion or the structure in which the left and right traveling structures of the lower traveling body 1 are divided and transported from the center frame. The present invention can also be applied to other construction machines such as cranes other than the articulated front structure.

本発明によるカプラ装置を適用する建設機械の一例を示す側面図である。It is a side view which shows an example of the construction machine to which the coupler apparatus by this invention is applied. 本発明のカプラ装置の一実施の形態を示す側面図である。It is a side view which shows one Embodiment of the coupler apparatus of this invention. 図２のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 図２の背面図である。FIG. 3 is a rear view of FIG. 2. 本実施の形態のカプラ装置を示す斜視図である。It is a perspective view which shows the coupler apparatus of this Embodiment. 図５のカプラ装置の分解斜視図である。It is a disassembled perspective view of the coupler apparatus of FIG. 本実施の形態のカプラ装置の一部断面側面図である。It is a partial cross section side view of the coupler apparatus of this Embodiment. 本実施の形態のカプラ装置を雌雄カプラの嵌合状態で一部省略して示す背面図である。It is a rear view which abbreviate | omits and shows the coupler apparatus of this Embodiment in the fitting state of the male and female coupler. 本実施の形態のカプラ装置を雌雄カプラの分離状態で一部省略して示す背面図である。It is a rear view which abbreviate | omits and shows the coupler apparatus of this Embodiment in the separation state of the male and female coupler. 本実施の形態のカプラ装置の一部断面底面図である。It is a partial cross section bottom view of the coupler apparatus of this Embodiment. 本実施の形態のカプラ装置の油圧シリンダの油圧回路の一例を示す油圧回路図である。It is a hydraulic circuit diagram which shows an example of the hydraulic circuit of the hydraulic cylinder of the coupler apparatus of this Embodiment. 本実施の形態のカプラ装置において、係止爪による係止構造の一例を示す側面図である。In the coupler apparatus of this Embodiment, it is a side view which shows an example of the latching structure by a latching claw. 本実施の形態のカプラ装置の係止爪の操作を説明する斜視図である。It is a perspective view explaining operation of the latching claw of the coupler apparatus of this Embodiment.

符号の説明Explanation of symbols

１：下部走行体、２：旋回装置、３：上部旋回体、４：油圧パワーユニット、５：運転室、６：ブラケット、７：多関節フロント、８：アダプタ、１２：第１のアーム、１５：第１のアームシリンダ、１７：第２のアーム、２０：第２のアームシリンダ、２２：第３のアーム、２５：第３のアームシリンダ、２７：破砕具、２９：作業具シリンダ、３１：アームリンク、３２：作業具リンク、３５，３６：油圧ホース、３７：カプラ装置、３７ａ：カプラ装置ユニット、３９：中継ホース、４０：分流装置、４１：分流装置取付け板、４３：分流ブロック、４３ａ：油路、４４：ボルト、４５：カプラ装置取付け板、４７：ボルト、４６：雌カプラ、４６ａ：くびれ部、４７：ボルト、４８：雄カプラ、４８ａ：鍔部、４９：第１のホルダ，４９ａ：取付け溝、４９ｂ：抜け止め溝４９ｂ、５１：固定板、５３：ねじ孔、５４：枠体、５４：縦枠、５４ｂ：横枠、５５：ボルト、５７：第２のホルダ、５７ａ：凹部、５７ｂ：取付け溝、５７ｃ：突出部、５８：ボルト、５９：蓋板、６１：ボルト、６３：ボルト、６４：固定板、６６：ねじ孔、６７：ボルト、６９：油圧シリンダ、６９ａ：ボトム室、６９ｂ：ロッド室、７０，７１：ボルト、７２，７３：油圧ホース、７４：油圧源、７５：油タンク、７６：コントロール弁、７７：係止爪、７７ａ，７７ｂ：凹部、７８：ハンドル、７９，８０：ボルト、８１：係止体、８２：ねじ孔、８３：ばね、８４：ボルト、８５：ストッパ、８６：ボルト 1: Lower traveling body, 2: Turning device, 3: Upper turning body, 4: Hydraulic power unit, 5: Driver's cab, 6: Bracket, 7: Articulated front, 8: Adapter, 12: First arm, 15: First arm cylinder, 17: second arm, 20: second arm cylinder, 22: third arm, 25: third arm cylinder, 27: crushing tool, 29: work tool cylinder, 31: arm Link, 32: Work tool link, 35, 36: Hydraulic hose, 37: Coupler device, 37a: Coupler device unit, 39: Relay hose, 40: Current divider, 41: Current divider mounting plate, 43: Current divider block, 43a: Oil passage, 44: bolt, 45: coupler device mounting plate, 47: bolt, 46: female coupler, 46a: constricted part, 47: bolt, 48: male coupler, 48a: collar part, 49: first holder, 9a: mounting groove, 49b: retaining groove 49b, 51: fixing plate, 53: screw hole, 54: frame, 54: vertical frame, 54b: horizontal frame, 55: bolt, 57: second holder, 57a: Recess, 57b: Mounting groove, 57c: Projection, 58: Bolt, 59: Cover plate, 61: Bolt, 63: Bolt, 64: Fixing plate, 66: Screw hole, 67: Bolt, 69: Hydraulic cylinder, 69a: Bottom chamber, 69b: Rod chamber, 70, 71: Bolt, 72, 73: Hydraulic hose, 74: Hydraulic source, 75: Oil tank, 76: Control valve, 77: Locking claw, 77a, 77b: Recess, 78: Handle, 79, 80: Bolt, 81: Locking body, 82: Screw hole, 83: Spring, 84: Bolt, 85: Stopper, 86: Bolt

Claims (4)

建設機械の分離、連結可能な複数の構成部品にそれぞれ添設される油圧配管同士を互いに分離可能に接続する建設機械用カプラ装置において、
互いに嵌合される雌雄のカプラのうちの一方のカプラを保持する第１のホルダと、
前記第１のホルダに設けられた枠体と、
互いに嵌合される雌雄のカプラのうちの他方のカプラを保持すると共に、前記枠体に対して相対的に摺動可能に設けられる第２のホルダと、
前記第２のホルダと前記枠体との間に設けられ、前記第１のホルダと前記第２のホルダとの間を近接、離反させてカプラ同士を嵌合、分離する油圧シリンダと、
前記第２のホルダに設けたガイド部に沿って摺動可能に取付けられる係止爪と、
前記枠体に凹状に設けられ、前記係止爪が挿嵌される係止爪係止部と、
前記第２のホルダに設けられ、前記係止爪を前記係止爪係止部に対して挿嵌する位置と離間する非係止位置とで保持する係止爪保持手段とを備えた
ことを特徴とする建設機械用カプラ装置。 In a construction machine coupler apparatus for connecting separable hydraulic pipes attached to a plurality of components that can be separated and connected to a construction machine,
A first holder for holding one of the male and female couplers fitted together;
A frame provided on the first holder;
A second holder that holds the other of the male and female couplers fitted to each other and is slidable relative to the frame;
A hydraulic cylinder that is provided between the second holder and the frame, and that fits and separates the couplers by bringing the first holder and the second holder close and apart from each other;
A locking claw that is slidably attached along a guide portion provided in the second holder;
A locking claw locking portion that is provided in a concave shape in the frame and into which the locking claw is inserted;
Locking claw holding means provided on the second holder and holding the locking claw at a position where the locking claw is inserted into the locking claw locking portion and a non-locking position where the locking claw is separated from the locking claw locking portion. A coupler device for construction machinery. 請求項１に記載の建設機械用カプラ装置において、
前記係止爪保持手段は、前記係止爪にその変位方向に間隔を有して設けられた２つの凹部に対して弾性的に押圧嵌合され、前記係止爪係止部に対する係止位置、非係止位置をそれぞれ保持する係合体を備えたものである
ことを特徴とする建設機械用カプラ装置。 The construction machine coupler device according to claim 1,
The locking claw holding means is elastically pressed and fitted to two concave portions provided on the locking claw with a gap in the displacement direction, and is locked to the locking claw locking portion. A coupler apparatus for a construction machine, comprising an engaging body that holds each of the non-locking positions. 請求項１または２に記載の建設機械用カプラ装置において、
前記油圧シリンダへ供給する圧油を制御するコントロール弁が３位置切換弁でなり、前記コントロール弁は、中立位置において、前記油圧シリンダのボトム室およびロッド室が油タンクに連通する構成を有する
ことを特徴とする建設機械用カプラ装置。 The coupler apparatus for construction machinery according to claim 1 or 2,
The control valve for controlling the pressure oil supplied to the hydraulic cylinder is a three-position switching valve, and the control valve has a configuration in which the bottom chamber and the rod chamber of the hydraulic cylinder communicate with the oil tank in the neutral position. A coupler device for construction machinery. 請求項１から３までのいずれか１項に記載の建設機械用カプラ装置において、
前記第１のホルダと前記第２のホルダと前記油圧シリンダとを１つの油圧アクチュエータ対応のユニットとしてそれぞれ備えた
ことを特徴とする建設機械用カプラ装置。 In the coupler apparatus for construction machines according to any one of claims 1 to 3,
A construction machine coupler apparatus comprising the first holder, the second holder, and the hydraulic cylinder as units corresponding to one hydraulic actuator.
JP2008033278A 2008-02-14 2008-02-14 Coupler for construction machinery Expired - Fee Related JP4896050B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106392987A (en) * 2016-10-18 2017-02-15 广东韶钢工程技术有限公司 Hydraulic coupler rapid disassembling device
CN109555177A (en) * 2019-01-25 2019-04-02 北京科技大学 One kind is hydraulic to be switched fast docking platform automatically
KR20210006198A (en) * 2019-07-08 2021-01-18 주식회사 제이케이 Fastening device for piping inlet and rotary quick coupler with them

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JPH0847305A (en) * 1994-08-08 1996-02-20 Sanyo Kiki Kk Hydraulic unit in working machine vehicle
JP2004508472A (en) * 2000-09-08 2004-03-18 マユー・ソシエテ・アノニム Method and system for obtaining a mechanical and multi-fluid connection between a tool and a tool holding frame
JP2007262778A (en) * 2006-03-29 2007-10-11 Kobelco Contstruction Machinery Ltd Pipe connecting device of working machine

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Publication number Priority date Publication date Assignee Title
JPS6414995A (en) * 1987-07-09 1989-01-19 Toshiba Corp Manufacture of multilayered substrate
JPH0847305A (en) * 1994-08-08 1996-02-20 Sanyo Kiki Kk Hydraulic unit in working machine vehicle
JP2004508472A (en) * 2000-09-08 2004-03-18 マユー・ソシエテ・アノニム Method and system for obtaining a mechanical and multi-fluid connection between a tool and a tool holding frame
JP2007262778A (en) * 2006-03-29 2007-10-11 Kobelco Contstruction Machinery Ltd Pipe connecting device of working machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106392987A (en) * 2016-10-18 2017-02-15 广东韶钢工程技术有限公司 Hydraulic coupler rapid disassembling device
CN109555177A (en) * 2019-01-25 2019-04-02 北京科技大学 One kind is hydraulic to be switched fast docking platform automatically
CN109555177B (en) * 2019-01-25 2023-10-17 北京科技大学 Automatic fast hydraulic switching docking platform
KR20210006198A (en) * 2019-07-08 2021-01-18 주식회사 제이케이 Fastening device for piping inlet and rotary quick coupler with them
KR102227205B1 (en) 2019-07-08 2021-03-12 주식회사 제이케이 Fastening device for piping inlet and rotary quick coupler with them

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