JP4891751B2

JP4891751B2 - Detachment device for electrical coupler

Info

Publication number: JP4891751B2
Application number: JP2006340727A
Authority: JP
Inventors: 徹阿部
Original assignee: KOBASHI INDUSTRIES CO., LTD.
Current assignee: KOBASHI INDUSTRIES CO., LTD.
Priority date: 2006-12-19
Filing date: 2006-12-19
Publication date: 2012-03-07
Anticipated expiration: 2026-12-19
Also published as: JP2008153087A

Description

本発明は、トラクタ側に設けられた制御用のコントローラと作業機側に設けられたアクチュエータやセンサ等を電気的に接続するケーブルを自動的に着脱する電装カプラーの着脱装置に関する。 The present invention relates to an attachment / detachment device for an electrical coupler that automatically attaches / detaches a cable for electrically connecting a control controller provided on a tractor side and an actuator, a sensor, etc. provided on a work machine side.

農用トラクタ等の走行機体において、近年、ヒッチ部分を改良して走行機体の後部にヒッチフレームを設け、このヒッチフレームに上部被連結部と下部被連結部を備えておき、作業機に設けた上部連結部と下部連結部をヒッチフレームの上下の被連結部に係合させて、作業機を走行機体に自動的に連結するいわゆるオートヒッチ方式の装置が知られている。また作業機側に耕深センサ等の電気的センサを設けたものも知られている。 In recent years, in a traveling machine body such as an agricultural tractor, the hitch part has been improved and a hitch frame is provided at the rear part of the traveling machine body, and an upper connected part and a lower connected part are provided on the hitch frame, and the upper part provided in the work machine 2. Description of the Related Art A so-called auto hitch type device is known in which a connecting portion and a lower connecting portion are engaged with upper and lower connected portions of a hitch frame to automatically connect a work machine to a traveling machine body. There is also known an electric sensor such as a tilling depth sensor provided on the work machine side.

このような走行機体では、走行機体と作業機との双方を繋ぐ電気配線が必要になるが、この配線は、走行機体から降りた作業者が手作業でカプラーを介して接続するのが一般である。また走行機体に対する作業機の着脱と同時に、カプラーを自動的に接離させる電装カプラーの着脱装置も知られている。 In such a traveling machine body, an electric wiring that connects both the traveling machine body and the work machine is required, and this wiring is generally connected manually by a worker who gets off the traveling machine body via a coupler. is there. There is also known an electrical coupler attachment / detachment device that automatically attaches / detaches the coupler simultaneously with the attachment / detachment of the work machine to / from the traveling machine body.

この電装カプラー５０の着脱装置は、特許文献１に記載されており、図７（ａ）（断面側面図）に示すように、雌側カプラー５１と雄側カプラー６０とからなり、雌側カプラー５１は作業機側に設けられ、雄側カプラー６０は走行機体側に設けられている。雌側カプラー５１は、内周面が内側に傾斜する傾斜誘導部５２とこの傾斜誘導部５２に連設される直線誘導部５３とを備え、直線誘導部５３の内側中心部に複数の電極ピンを有したコネクタ部５４を形成してなる。一方、雄側カプラー６０は、中心部近傍に電極ピンに嵌合する孔状の電極を有するコネクタ部６１を形成し、前後方向及びこれに直交する方向に移動可能に取り付けられている。 This electric coupler 50 attaching / detaching device is described in Patent Document 1, and as shown in FIG. 7A (cross-sectional side view), includes a female-side coupler 51 and a male-side coupler 60, and the female-side coupler 51. Is provided on the working machine side, and the male coupler 60 is provided on the traveling machine body side. The female-side coupler 51 includes an inclination guiding portion 52 whose inner peripheral surface is inclined inward, and a linear guiding portion 53 connected to the inclined guiding portion 52, and a plurality of electrode pins at the inner central portion of the linear guiding portion 53. The connector part 54 which has is formed. On the other hand, the male-side coupler 60 forms a connector portion 61 having a hole-like electrode fitted to an electrode pin in the vicinity of the center portion, and is attached so as to be movable in the front-rear direction and the direction perpendicular thereto.

雄側カプラー６０は、図７（ａ）及び図７（ｂ）（Ａ矢視図）に示すように、前部に縦長楕円状のフランジ部を設け、フランジ部の後部に内側に傾斜する芯出部６２を設け、芯出部６２の後方に縦長楕円状で前後方向に延びる突部６３を設け、突部６３の内側に中空部を形成し、中空部内にコネクタ部６１を形成している。一方、雌側カプラー５１は、図７（ａ）及び図７（ｃ）（Ｂ矢視図）に示すように、傾斜誘導部５２及び直線誘導部５３が正面視において縦長楕円状に形成されており、直線誘導部５３とコネクタ部５４は、雄側カプラー６０が雌側カプラー５１の直線誘導部５２に嵌合し始めた段階では、コネクタ部５４，６１の電極同士は非接触状態にあり、雄側カプラー６０が雌側カプラー５１内をさらに進んだ段階で電極同士が接触するように直線誘導部５１の始端部よりもやや後方側にコネクタ部５４の先端が臨むような位置関係に設定されている。 As shown in FIGS. 7 (a) and 7 (b) (A arrow view), the male coupler 60 is provided with a vertically long elliptical flange portion at the front portion and a core inclined inward at the rear portion of the flange portion. A protruding portion 62 is provided, and a protruding portion 63 that is vertically long and elliptical and extends in the front-rear direction is provided behind the centering portion 62, a hollow portion is formed inside the protruding portion 63, and a connector portion 61 is formed in the hollow portion. . On the other hand, as shown in FIGS. 7 (a) and 7 (c) (B arrow view), the female coupler 51 has an inclined guiding portion 52 and a straight guiding portion 53 that are formed in an oblong shape when viewed from the front. In the stage where the male-side coupler 60 starts to be fitted into the straight-line guiding portion 52 of the female-side coupler 51, the electrodes of the connector portions 54 and 61 are in a non-contact state. The positional relationship is set such that the distal end of the connector portion 54 faces slightly behind the starting end portion of the linear guide portion 51 so that the electrodes come into contact with each other when the male coupler 60 further advances in the female coupler 51. ing.

特許第２９２２１１４号公報Japanese Patent No. 2922114

この従来の電装カプラーの着脱装置は、雄側カプラーの突部の外周面を形成する直線誘導部と雌側カプラーの直線誘導部との芯出しの精度は比較的に高いので、雄側カプラーの中心軸線が雌側カプラーのそれに対して僅かに斜めにずれた状態で嵌合しても、雄側カプラーはロックされた状態となり、コネクタ部同士の合体が困難になってケーブルの電気的接続が不十分になる問題があった。 This conventional electrical coupler attaching / detaching device has a relatively high centering accuracy between the linear guiding portion forming the outer peripheral surface of the protruding portion of the male coupler and the linear guiding portion of the female coupler. Even if the center axis is fitted with the female coupler slightly off at an angle, the male coupler will be locked, making it difficult to join the connectors together and connecting the cables electrically. There was a problem of becoming insufficient.

このため、走行機体から降りた作業者が手作業で両カプラーを接続して配線を電気的に接続する作業を行っているのが現状である。 For this reason, the present condition is that the worker who got off the traveling machine body is performing the work of connecting the couplers manually to electrically connect the wiring.

本発明は、このような要望に答えるものであり、コネクタ部同士の電気的接続を自動的に且つ確実に行うことができる電装カプラーの着脱装置を提供することを目的とする。 The present invention responds to such a demand, and an object of the present invention is to provide an electrical coupler attaching / detaching device capable of automatically and reliably performing electrical connection between connector portions.

このような課題を解決するため、本発明は、以下の特徴を有する。特徴の一つは、凹部を有する雌側カプラーとこれに嵌合される雄側カプラーとからなる電装カプラーの着脱装置であって、雌側カプラー及び雄側カプラーのいずれか一方をトラクタ本体（例えば、実施形態における走行機体７０）側に設け、いずれか他方を作業機（例えば、実施形態における耕耘作業機９０）側に設け、雄側カプラーは、接続側外側面に設けられて外側に傾斜する第一傾斜誘導部（例えば、実施形態における第一傾斜誘導部１１ａ）と該第一傾斜誘導部に連設される第一直線誘導部（例えば、実施形態における第一直線誘導部１１ｂ）とを備え、且つ接続側内側面に設けられて内側に傾斜する第二傾斜誘導部（例えば、実施形態における第二傾斜誘導部１１ｃ）と該第二傾斜誘導部に連設される第二直線誘導部（例えば、実施形態における第二直線誘導部１１ｄ）とを備え、且つ該第二直線誘導部の内側中心部近傍に複数の電極（例えば、実施形態におけるソケットタイプの電極１７）を有するコネクタ部が形成され、雌側カプラーは、接続側内側面に設けられて内側に傾斜する第一傾斜誘導部（例えば、実施形態における第一傾斜誘導部３２ａ）と該第一傾斜誘導部に連設される第一直線誘導部（例えば、実施形態における第一直線誘導部３２ｂ）とを備え、且つ該第一直線誘導部の内側に位置し、外側に傾斜する第二傾斜誘導部（例えば、実施形態における第二傾斜誘導部３５ａ）と該第二傾斜誘導部に連設されて雄側カプラーの第二直線誘導部を案内する第二直線誘導部（例えば、実施形態における第二直線誘導部３５ｂ）とを備え、且つ該第二直線誘導部の内側中心部近傍に複数の電極（例えば、実施形態におけるプレートタイプの電極３９）を有するコネクタ部が形成され、両カプラーを接近しながら該カプラーの第一直線誘導部及び第二直線誘導部を案内しつつ移動する間に次第により精度の高い芯出しがなされる嵌合となり、雌側カプラーのコネクタ部と雄側カプラーのコネクタ部が合体されるように構成されることを特徴とする。 In order to solve such a problem, the present invention has the following features. One aspect is a removable device of the electric coupler comprising a male coupler which is fitted to the female coupler having a recess, tractor Body either the female coupler and the male coupler (For example, the traveling machine body 70 in the embodiment) side is provided, one of the other is provided on the work machine (for example, the tillage work machine 90 in the embodiment) side, and the male coupler is provided on the connection side outer surface and on the outside. An inclined first tilt guiding portion (for example, the first tilt guiding portion 11a in the embodiment) and a first linear guiding portion (for example, the first straight guiding portion 11b in the embodiment) connected to the first tilt guiding portion. A second inclination guide part (for example, the second inclination guide part 11c in the embodiment) provided on the inner surface of the connection side and inclined inward, and a second linear guide part provided continuously to the second inclination guide part. (For example, real And a connector portion having a plurality of electrodes (for example, the socket type electrode 17 in the embodiment) is formed in the vicinity of the inner center portion of the second linear guide portion. The side coupler is provided on the inner side surface of the connection side and is inclined inwardly (for example, the first inclination guiding part 32a in the embodiment) and the first linear guiding part that is connected to the first inclination guiding part. (For example, the first linear guiding part 32b in the embodiment), and is positioned inside the first linear guiding part and is inclined outward (for example, the second linear guiding part 35a in the embodiment). And a second linear guiding part (for example, the second linear guiding part 35b in the embodiment) that is connected to the second inclined guiding part and guides the second linear guiding part of the male coupler. Straight line guide A connector portion having a plurality of electrodes (for example, plate-type electrode 39 in the embodiment) is formed near the inner center portion, and guides the first linear guide portion and the second linear guide portion of the coupler while approaching both couplers. However, the fitting is such that the centering becomes more accurate while moving, and the connector portion of the female coupler and the connector portion of the male coupler are combined.

この発明によれば、雄側カプラーは、接続側外側面に第一傾斜誘導部と第一直線誘導部とを備え、接続側内側面に第二傾斜誘導部と第二直線誘導部とを備え、第二直線誘導部の内側中心部近傍にコネクタ部を形成し、雌側カプラーは、接続側内側面に第一傾斜誘導部と第一直線誘導部とを備え、第一直線誘導部の内側に第二傾斜誘導部と第二直線誘導部とを備え、第二直線誘導部の内側中心部近傍にコネクタ部を形成し、両カプラーは第一直線誘導部及び第二直線誘導部に案内されながら移動する間に次第により精度の高い芯出しがなされる嵌合となることで、両カプラーが接近すると、雄側カプラーの第一傾斜誘導部が雌側カプラーの第一傾斜誘導部に接触して摺動し、両カプラーの軸芯のずれを小さくする。そして、両カプラーがさらに接近する過程で、雌側カプラーの第一直線誘導部内を雄側カプラーの第一直線誘導部が移動する。ここで、第一直線誘導部による芯出しの精度は比較的に低いので、接近する両カプラーの軸芯がずれていても、カプラーの移動がロックされる虞はない。そして、両カプラーがさらに接近すると、雄側カプラーの第二傾斜誘導部が雌側カプラーの第二傾斜誘導部に接触して摺動し、両カプラーの軸芯のずれをさらに小さくして両カプラーの軸芯を一致させる。そして、両カプラーがさらに接近する過程で、雄側カプラーの第二直線誘導部内を雌側カプラーの第二直線誘導部が移動して、雌側カプラーのコネクタ部と雄側カプラーのコネクタ部を合体させて両カプラーに繋がる配線を電気的に確実に接続することができる。 According to the present invention, the male coupler includes a first inclined guiding portion and a first linear guiding portion on the connection side outer surface, and a second inclined guiding portion and a second linear guiding portion on the connection side inner surface, A connector part is formed near the inner center part of the second linear guiding part, and the female coupler has a first inclined guiding part and a first linear guiding part on the inner side surface of the connection side, and a second inner part of the first linear guiding part. An inclination guide part and a second linear guide part are provided, a connector part is formed near the inner center part of the second linear guide part, and both couplers move while being guided by the first linear guide part and the second linear guide part. in fitting the such Rukoto the accurate centering it is made progressively more, when both couplers approaches, sliding first inclined guiding portion of the male coupler in contact with the first inclined guiding portion of the female coupler And reduce the misalignment of the axis of both couplers. Then, in the process in which both couplers are further approached, the first linear guiding portion of the male coupler moves within the first linear guiding portion of the female coupler. Here, since the accuracy of the centering by the first linear guiding portion is relatively low, there is no possibility that the movement of the coupler is locked even if the shaft cores of both approaching couplers are deviated. Then, when both couplers come closer, the second inclination guiding part of the male coupler comes into contact with the second inclination guiding part of the female coupler and slides to further reduce the axial misalignment of both couplers. Match the axis of the. Then, as the two couplers further approach, the second linear guide section of the female coupler moves within the second linear guide section of the male coupler, and the connector section of the female coupler and the connector section of the male coupler are combined. Thus, the wiring connected to both couplers can be electrically and reliably connected.

また特徴の一つは、両カプラーの第一直線誘導部及び第二直線誘導部は、第一直線誘導部が嵌合してから第二直線誘導部の嵌合が始まる位置関係を有することを特徴とする。 In addition, one of the features is that the first linear guiding portion and the second linear guiding portion of both couplers have a positional relationship in which the fitting of the second linear guiding portion starts after the first linear guiding portion is fitted. To do.

この発明によれば、両カプラーの第一直線誘導部及び第二直線誘導部は、第一直線誘導部が嵌合してから第二直線誘導部の嵌合が始まる位置に配置されていることで、両カプラーが嵌合連結される初期の段階で、より精度の高い芯出し作用がなされることがなく、カプラーの芯出し精度を、両カプラー同士の連結が進む過程で除々に上げることができる。このため、第一直線誘導部同士が嵌合する前に第二直線誘導部同士が嵌合することはなく、両カプラーの嵌合をスムースにして、両コネクタ部の合体を容易にすることができる。 According to this invention, the first linear guide part and the second linear guide part of both couplers are arranged at positions where the second linear guide part starts to be fitted after the first linear guide part is fitted, At the initial stage when both couplers are fitted and connected, the centering operation with higher accuracy is not performed, and the centering accuracy of the coupler can be gradually increased in the process of connecting the two couplers. For this reason, before the first linear guide portions are fitted to each other, the second linear guide portions are not fitted to each other, and the fitting of both couplers can be made smooth to facilitate the combination of both connector portions. .

さらに特徴の一つは、雄側カプラーは、トラクタ本体側の後部に連結されたヒッチフレームに配設された固定部材との間に、ピン（例えば、実施形態におけるボルト８８）と該ピンを巻回するスプリングとを介して設けられて、固定部材に対して前後方向及びこれと略直交する方向に所定範囲移動可能に支持されていることを特徴とする。 One further feature is the male side coupler over is provided between the fixing member disposed in the hitch frame connected to a rear portion of the tractor body, the pin (e.g., a bolt 88 in the embodiment) of the said pin It is provided via a winding spring, and is supported so as to be movable within a predetermined range in the front-rear direction and in a direction substantially orthogonal to the fixed member.

この発明によれば、雄側カプラーをトラクタ本体側の後部に連結されたヒッチフレームに配設された固定部材に対して前後方向及びこれと略直交する方向に所定範囲移動可能に支持されていることで、着脱時における両カプラーの損傷を抑制することができ、電源ライン等が確実に接続されて、誤動作の虞をなくして、作業機を正確に動作させることができる。 According to the present invention, the male coupler is supported so as to be movable within a predetermined range in the front-rear direction and in a direction substantially perpendicular to the fixing member disposed on the hitch frame connected to the rear portion of the tractor body . As a result, it is possible to prevent damage to both couplers during attachment and detachment, the power supply line and the like are securely connected, and there is no risk of malfunction, and the work machine can be operated accurately.

また特徴の一つは、雌側カプラー及び雄側カプラーのいずれか一方のコネクタ部はプレートタイプの電極を有し、他方のコネクタ部は、プレートタイプの電極が挿入されると弾性を有した接触部を押し広げてプレートタイプの電極の平面部と押圧接触するソケットタイプの電極を有することを特徴とする。 One of the features is that either the female-side coupler or the male-side coupler has a plate-type electrode, and the other connector has an elastic contact when the plate-type electrode is inserted. It is characterized by having a socket type electrode that presses and contacts the flat portion of the plate type electrode by expanding the portion.

この発明によれば、コネクタ部の一方はプレートタイプの電極を備え、コネクタ部の他方は、プレートタイプの電極が挿入されると弾性を有した接触部を押し広げてプレートタイプの電極の平面部と押圧接触するソケットタイプの電極を備えることで、雌側カプラー及び雄側カプラーの両コネクタ部が合体すると、プレートタイプの電極がソケットタイプの電極の接触部を押し広げながら内側に移動して、プレートタイプの電極の平面部が接触部と押圧接触する。このため、平面部に土等の付着物が付いていても、電極の挿着時に接触部によって付着物を取り除くことができ、プレートタイプの電極とソケットタイプの電極との接触不良を未然に防止することができる。 According to the present invention, one of the connector parts includes a plate-type electrode, and the other of the connector parts pushes and expands the elastic contact part when the plate-type electrode is inserted. When the female-side coupler and the male-side coupler are joined together, the plate-type electrode moves inward while expanding the contact portion of the socket-type electrode. The flat portion of the plate-type electrode is in press contact with the contact portion. For this reason, even if dirt or other deposits are attached to the flat surface, the deposits can be removed by the contact portion when the electrode is inserted, preventing poor contact between the plate-type electrode and the socket-type electrode. can do.

本発明に係わる電装カプラーの着脱装置によれば、上記特徴を有することによって、コネクタ部同士の電気的接続を自動的に且つ確実に行うことができる電装カプラーの着脱装置を提供することができる。 According to the electrical coupler attaching / detaching device of the present invention, the electrical coupler attaching / detaching device capable of automatically and reliably performing electrical connection between the connector portions can be provided by having the above-described characteristics.

以下、本発明に係わる電装カプラーの着脱装置の実施形態を図１から図６に基づいて説明する。なお、本実施形態は、耕耘作業を行う耕耘作業機にこれを牽引するトラクタ等の走行機体を連結する場合を例にして説明する。先ず、本発明の電装カプラーの着脱装置を説明する前に、この着脱装置を取り付ける走行機体の後部に設けられた昇降装置について説明する。 Embodiments of an electrical coupler attaching / detaching device according to the present invention will be described below with reference to FIGS. In the present embodiment, a case where a traveling machine body such as a tractor that pulls the plowing work machine that performs the plowing work is connected will be described as an example. First, before describing the attachment / detachment device for an electrical coupler according to the present invention, an elevating device provided at the rear of a traveling machine body to which the attachment / detachment device is attached will be described.

昇降装置７１は、図１（側面図）に示すように、走行機体７０の機体後部に設けられた３点リンク連結機構７２を備える。この３点リンク連結機構７２は、走行機体７０の後部下側の左右両側に設けられたロアーリンク７３と走行機体７０の後部上側中央部に設けられたトップリンク７４を備える。ロアーリンク７３はリフトロッド７５を介してリフトアーム７６に接続されており、リフトアーム７６の上下動によってロアーリンク７３が上下方向に回動して、３点リンク連結機構７２に連結されたヒッチフレーム８０を介して耕耘作業機９０が昇降可能である。リフトアーム７６は、走行機体７０の後部に設けられた図示しない油圧シリンダによって上下動するようになっている。 As shown in FIG. 1 (side view), the lifting device 71 includes a three-point link coupling mechanism 72 provided at the rear of the vehicle body 70. The three-point link coupling mechanism 72 includes a lower link 73 provided on both the left and right sides of the lower side of the rear part of the traveling machine body 70 and a top link 74 provided at the upper center part of the rear part of the traveling machine body 70. The lower link 73 is connected to the lift arm 76 via the lift rod 75, and the lower link 73 is rotated in the vertical direction by the vertical movement of the lift arm 76, and the hitch frame connected to the three-point link connecting mechanism 72. The tillage working machine 90 can be moved up and down via 80. The lift arm 76 is moved up and down by a hydraulic cylinder (not shown) provided at the rear portion of the traveling machine body 70.

ヒッチフレーム８０は、図１，図２（側面図），図３（背面図）に示すように、背面視において略逆Ｕ字状に形成されたパイプ８１と、この中央上部に固着された吊り上げフック８２と、パイプ８１の下端に設けられて作業機側の連結ピン９１を係止する係止プレート８３と、嵌入された連結ピン９１を保持するロックプレート８４等を備える。 As shown in FIGS. 1, 2 (side view), and FIG. 3 (rear view), the hitch frame 80 has a pipe 81 formed in a substantially inverted U shape when viewed from the back, and a lifting member fixed to the center upper portion. A hook 82, a locking plate 83 provided at the lower end of the pipe 81 for locking the connection pin 91 on the work machine side, a lock plate 84 for holding the inserted connection pin 91, and the like are provided.

耕耘作業機９０は、走行機体７０のＰＴＯ軸９２からユニバーサルジョイント等の動力伝達手段９３を介して、耕耘作業機９０の幅方向中央部に設けられたギアボックス９４から前方へ突出する入力軸９４ａに動力が伝達されるようになっている。 The tillage working machine 90 has an input shaft 94a projecting forward from a gear box 94 provided at the center in the width direction of the tilling work machine 90 from the PTO shaft 92 of the traveling machine body 70 through a power transmission means 93 such as a universal joint. Power is transmitted to the.

耕耘作業機９０は、耕耘作業を行う耕耘体を有する作業機本体９５と作業機本体９５の背面側に折り畳み可能に設けられて耕耘体の作業幅を延長する延長耕耘体９６とを備え、作業機本体９５及び延長作業体９６，９６によって３分割構造になっている。耕耘作業機９０の作業機本体９５にはギアボックス９４を取り付けて機体幅方向に延びる主フレーム９７が設けられ、この主フレーム９７の中央上部には前側に延びてピン９８ａを有したトップマスト９８が設けられている。 The tilling work machine 90 includes a work machine main body 95 having a tilling body for performing the tilling work, and an extended tilling body 96 that is foldable on the back side of the work machine main body 95 and extends the work width of the tilling body. The machine body 95 and the extension work bodies 96 and 96 form a three-part structure. The working machine body 95 of the tilling work machine 90 is provided with a main frame 97 attached with a gear box 94 and extending in the width direction of the machine body, and a top mast 98 having a pin 98a extending forward from the center upper portion of the main frame 97. Is provided.

延長作業体９６は、作業機本体９５の左右方向の端部に設けられた支点を中心として回動可能に設けられ、作業機本体９５と延長作業体９６との間に接続された電動式油圧シリンダ９９の伸縮によって、延長作業体９６は作業幅を延長する作業位置と作業機本体９５の背面側に収納される収納位置との間を移動可能である。電動式油圧シリンダ９９は、走行機体７０に設けられた操作スイッチの操作に応じて電動式油圧シリンダ９９の伸縮動作を制御する制御信号を発生するコントローラとケーブルを介して電気的に接続されている。このケーブルの途中に、相互に接続・分離自在な雄側カプラー１０及び雌側カプラー３０からなる電装カプラー１の着脱装置を取り付け、両カプラーを介して制御信号が流れるようになっている。なお、電源は走行機体側に設けられてコントローラに電力を供給する。 The extension work body 96 is provided so as to be rotatable about a fulcrum provided at the left and right ends of the work machine body 95, and is connected between the work machine body 95 and the extension work body 96. By extension / contraction of the cylinder 99, the extension work body 96 is movable between a work position for extending the work width and a storage position stored on the back side of the work machine main body 95. The electric hydraulic cylinder 99 is electrically connected via a cable to a controller that generates a control signal for controlling the expansion / contraction operation of the electric hydraulic cylinder 99 according to the operation of an operation switch provided in the traveling machine body 70. . In the middle of the cable, an attachment / detachment device for the electrical coupler 1 composed of a male coupler 10 and a female coupler 30 that can be connected and separated from each other is attached, and a control signal flows through both couplers. In addition, a power supply is provided in the traveling body side and supplies electric power to a controller.

雄側カプラー１０は、ヒッチフレーム８０の係止プレート８３間を繋ぐ連結部材８５の中央部右側に設けられた支持部材８６を介して取り付けられた固定部材８７に対して前後方向及びこれと略直交する方向に所定範囲移動可能に設けられている。雄側カプラー１０は、固定部材８７に取り付けられた前後方向に延びるボルト８８とこれを挿通するスプリング８９を介して前後方向に移動可能に支持され、常にスプリング８９によってボルト頭部側に付勢されている。またボルト８８を挿通する固定部材８７に設けられた孔部はボルト８８の径よりも大きく形成されている。このため、ボルト８８は固定部材８７に対して傾動可能である。その結果、雄側カプラー１０は、前後方向に移動可能であるとともに、ボルト８８と略直交する方向に所定範囲で移動可能である。一方、雌側カプラーは、図４（正面図）に示すように、作業機本体９５の主フレーム９７の中央部右側に設けられた支持板１００に取り付けられている。 The male coupler 10 is in the front-rear direction and substantially orthogonal to a fixing member 87 attached via a support member 86 provided on the right side of the central portion of the connecting member 85 that connects between the locking plates 83 of the hitch frame 80. It is provided so as to be movable within a predetermined range in the direction in which it moves. The male coupler 10 is supported so as to be movable in the front-rear direction via a bolt 88 extending in the front-rear direction attached to the fixing member 87 and a spring 89 inserted therethrough, and is always urged toward the bolt head side by the spring 89. ing. Further, the hole provided in the fixing member 87 through which the bolt 88 is inserted is formed larger than the diameter of the bolt 88. For this reason, the bolt 88 can tilt with respect to the fixing member 87. As a result, the male-side coupler 10 can move in the front-rear direction and can move within a predetermined range in a direction substantially orthogonal to the bolt 88. On the other hand, as shown in FIG. 4 (front view), the female coupler is attached to a support plate 100 provided on the right side of the central portion of the main frame 97 of the work machine main body 95.

次に、雄側カプラー１０の構造について説明する。なお、説明の都合上、図５（ａ）（横断面図）の矢印が示す方向を前後方向及び左右方向として以下説明する。雄側カプラー１０は、図５（ａ）及び図５（ｂ）（縦断面図）に示すように、略直方体形状をなし、外側に角筒状の雄側芯出部１１が設けられ、雄側芯出部１１の内側に後方側へ突出する雄側コネクタ部１３が設けられている。雄側芯出部１１の外側面の後端部には外側に傾斜する第一傾斜誘導部１１ａが設けられ、外側面の前側には第一傾斜誘導部１１ａに繋がる第一直線誘導部１１ｂが設けられている。また雄側芯出部１１の内側面の後端部には内側に傾斜する第二傾斜誘導部１１ｃが設けられ、内側面の前側には第二傾斜誘導部１１ｃに繋がる第二直線誘導部１１ｄが設けられている。雄側コネクタ部１３は、略直方体形状であり、その外側面の後端部には、外側に傾斜する第三傾斜誘導部１３ａが設けられ、外側面の前側には第三傾斜誘導部１３ａに繋がる第三直線誘導部１３ｂが設けられている。雄側コネクタ部１３の内部には、横方向に所定距離を有して複数配設されて上下２段に設けられた複数の穴部にソケットタイプの電極１７が挿着されている。雄側コネクタ部１３の後端部は第二直線誘導部１１ｄの後端よりも前側に位置している。 Next, the structure of the male coupler 10 will be described. For convenience of explanation, the directions indicated by the arrows in FIG. 5A (cross-sectional view) will be described below as the front-rear direction and the left-right direction. As shown in FIGS. 5A and 5B (longitudinal sectional view), the male coupler 10 has a substantially rectangular parallelepiped shape and is provided with a male-side centering portion 11 having a rectangular tube shape on the outer side. A male connector portion 13 that protrudes rearward is provided inside the side centering portion 11. The rear end portion of the outer side surface of the male centering portion 11 is provided with a first inclination guiding portion 11a inclined outward, and the first linear guiding portion 11b connected to the first inclination guiding portion 11a is provided on the front side of the outer surface. It has been. Moreover, the 2nd linear guide part 11d connected to the 2nd inclination guide part 11c connected to the 2nd inclination guide part 11c is provided in the rear end part of the inner side surface of the male side centering part 11 at the inner side. Is provided. The male connector portion 13 has a substantially rectangular parallelepiped shape, and a third inclined guiding portion 13a inclined outward is provided at the rear end portion of the outer surface, and the third inclined guiding portion 13a is provided on the front side of the outer surface. A third linear guiding portion 13b to be connected is provided. Inside the male connector portion 13, socket-type electrodes 17 are inserted into a plurality of hole portions that are arranged in a horizontal direction with a predetermined distance and are provided in two upper and lower stages. The rear end portion of the male connector portion 13 is located in front of the rear end of the second linear guide portion 11d.

一方、雌側カプラー３０は、略直方体形状をなして内側に凹部３１を有し、外側に角筒状の雌側芯出部３２が設けられ、雌側芯出部３２の内側に前方側へ突出する雌側コネクタ部３５が設けられている。雌側芯出部３２の前端部には外側に傾斜する第一傾斜誘導部３２ａが設けられ、雌側芯出部３２の内側面の後側には第一傾斜誘導部３２ａに繋がる第一直線誘導部３２ｂが設けられている。 On the other hand, the female coupler 30 has a substantially rectangular parallelepiped shape and has a concave portion 31 on the inner side, and a rectangular cylindrical female side centering portion 32 is provided on the outer side. A protruding female connector portion 35 is provided. A first inclination guiding portion 32a that is inclined outward is provided at the front end portion of the female side centering portion 32, and a first linear guide that is connected to the first inclination guiding portion 32a on the rear side of the inner side surface of the female side centering portion 32. A portion 32b is provided.

雌側コネクタ部３５は、略直方体形状であり、その外側面の前端部には外側に傾斜する第二傾斜誘導部３５ａが設けられ、外側面の前側には第二傾斜誘導部３５ａに繋がる第二直線誘導部３５ｂが設けられている。雌側コネクタ部３５の前側には雄側カプラー１０の雄側コネクタ部１３と嵌合する嵌合穴部３６が設けられ、嵌合穴部３６の内側の前端部には外側に傾斜する第三傾斜誘導部３５ｃが設けられ、嵌合穴部３６の後側には第三傾斜誘導部３５ｃに繋がって後方側へ延びる第三直線誘導部３５ｄが設けられている。雌側コネクタ部３５の内部には、横方向に所定距離を有して複数配設されて上下２段に設けられた複数の穴部にプレートタイプの電極３９が挿着されている。プレートタイプの電極３９は、雌側カプラー３０と雄型カプラー１０が合体状態になると、対応するソケットタイプの電極１７と接触して電気的に接続された状態になる。雌側コネクタ部３５の前端部は第一直線誘導部３２ｂの前端よりも後側に位置している。 The female connector portion 35 has a substantially rectangular parallelepiped shape, and a second inclined guiding portion 35a inclined outward is provided at the front end portion of the outer side surface, and a second inclined guiding portion 35a connected to the second inclined guiding portion 35a is provided on the front side of the outer side surface. A bilinear guide portion 35b is provided. A fitting hole portion 36 that fits with the male connector portion 13 of the male coupler 10 is provided on the front side of the female connector portion 35, and a third portion that is inclined outward at the front end portion inside the fitting hole portion 36. An inclination guiding portion 35c is provided, and a third linear guiding portion 35d extending to the rear side connected to the third inclination guiding portion 35c is provided on the rear side of the fitting hole portion 36. Inside the female connector portion 35, plate-type electrodes 39 are inserted into a plurality of holes provided in two upper and lower stages with a predetermined distance in the lateral direction. When the female coupler 30 and the male coupler 10 are in the combined state, the plate-type electrode 39 comes into contact with and electrically connected to the corresponding socket-type electrode 17. The front end portion of the female connector portion 35 is located on the rear side of the front end of the first straight guide portion 32b.

このように構成された雄側カプラー１０と雌側カプラー３０は、両カプラーの第一直線誘導部１１ｂ，３２ｂ同士、第二直線誘導部１１ｄ，３５ｂ同士、第三直線誘導部１３ｂ、３５ｄ同士が嵌合可能な大きさに形成されているとともに、両カプラーの内側に行くほどより精度の高い芯出しがなされる嵌合となるように形成されている。即ち、第一直線誘導部１１ｂ，３２ｂ同士の芯出しの精度は最も低く、第三直線誘導部１３ｂ、３５ｄ同士の芯出しの精度は最も高く、第二直線誘導部１１ｄ，３５ｂ同士の芯出しの精度は第一及び第三直線誘導部同士の芯出しの精度の中間の精度を有している。 The male coupler 10 and the female coupler 30 configured as described above are fitted with the first linear guiding portions 11b and 32b, the second linear guiding portions 11d and 35b, and the third linear guiding portions 13b and 35d of both couplers. It is formed in such a size that it can be mated, and it is formed so as to be more accurately centered toward the inside of both couplers. That is, first linear guiding portion 11b, the centering accuracy 32b each other lowest, third straight guiding portion 13b, the highest the centering accuracy 35d between the second linear guiding portion 11d, and 35b between the centering The accuracy is intermediate between the alignment accuracy of the first and third linear guiding portions.

また両カプラーの第一直線誘導部１１ｂ，３２ｂ、第二直線誘導部１１ｄ，３５ｂ及び第三直線誘導部１３ｂ、３５ｄは、第一直線誘導部１１ｂ，３２ｂが嵌合してから第二直線誘導部１１ｄ，３５ｂの嵌合が始まり、第二直線誘導部１１ｄ，３５ｂが嵌合してから第三直線誘導部１３ｂ、３５ｄの嵌合が始まる位置関係を有している。即ち、雄側カプラー１０の第一直線誘導部１１ｂの後端位置より前側に雄側カプラー１０の第二直線誘導部１１ｄの後端が位置し、この後端位置より前側に雄側カプラー１０の第三直線誘導部１３ｂの後端が位置しており、雌側カプラー３０の第一直線誘導部３２ｂの前端位置より後側に雌側カプラー３０の第二直線誘導部３５ｂの前端が位置し、この前端位置より若干前側位置に雌側カプラー３０の第三直線誘導部３５ｄの前端が位置している。 Further, the first linear guiding portions 11b and 32b, the second linear guiding portions 11d and 35b, and the third linear guiding portions 13b and 35d of both couplers are connected to the second linear guiding portion 11d after the first linear guiding portions 11b and 32b are fitted. 35b starts to be fitted, and the second linear guide portions 11d and 35b are fitted, and then the third linear guide portions 13b and 35d are fitted. That is, the rear end of the second linear guide portion 11d of the male coupler 10 is positioned in front of the rear end position of the first straight guide portion 11b of the male coupler 10, and the second end of the male coupler 10 is positioned in front of the rear end position. The rear end of the three straight guide portions 13b is located, and the front end of the second straight guide portion 35b of the female coupler 30 is located behind the front end position of the first straight guide portion 32b of the female coupler 30. The front end of the third linear guide portion 35d of the female coupler 30 is located slightly in front of the position.

雌側カプラー３０の雌側コネクタ部３５に挿着されたプレートタイプの電極３９は、板状の雄型接触部３９ａとこの後端部に連設された接続部３９ｂとを有し、雄型接触部３９ａを孔部の後方側から前側に挿入して雌側コネクタ部３５に挿着され、雄型接触部３９ａが孔部の前端から前方に所定距離を有した位置まで延びる。なお、プレートタイプの電極３９は、金属等の導電材料で形成されている。 A plate-type electrode 39 inserted into the female-side connector portion 35 of the female-side coupler 30 has a plate-like male contact portion 39a and a connection portion 39b connected to the rear end portion. The contact portion 39a is inserted from the rear side to the front side of the hole portion and is inserted into the female connector portion 35, and the male contact portion 39a extends forward from the front end of the hole portion to a position having a predetermined distance. The plate-type electrode 39 is made of a conductive material such as metal.

一方、雄側カプラー１０の雄側コネクタ部１３に挿着されたソケットタイプの電極１７は、弾性を有する金属等の導電材料で形成され、雄型接触部３９ａの両側を押圧接触する一対の雌型接触部１７ａとこれに繋がる接続部１７ｂを有してなる。ソケットタイプの電極１７は雌型接触部１７ａを穴部の後方側から前側に挿入して雄側コネクタ部１３に挿着され、ソケットタイプの電極１７が雄側コネクタ部１３に挿着されると、一対の雌側接触部１７ａは所定範囲内で互いに離反する方向に移動可能であり、また一対の雌側接触部１７ａ間にプレートタイプの電極３９が挿入されていない状態では、一対の雌側接触部１７ａ間の間隔は、プレートタイプの電極３９の厚さより小さくなるように形成されている。このため、一対の雌型接触部１７ａ間にプレートタイプの電極３９が挿入されると、一対の雌側接触部１７ａは互いに離反する方向に弾性変形して、プレートタイプの電極３９の両面に押圧接触する。 On the other hand, the socket-type electrode 17 inserted into the male connector portion 13 of the male coupler 10 is formed of a conductive material such as an elastic metal and presses both sides of the male contact portion 39a. A mold contact portion 17a and a connecting portion 17b connected to the die contact portion 17a are provided. When the socket-type electrode 17 is inserted into the male connector portion 13 by inserting the female contact portion 17a from the rear side to the front side of the hole portion, the socket-type electrode 17 is inserted into the male connector portion 13. The pair of female side contact portions 17a are movable in directions away from each other within a predetermined range, and when the plate-type electrode 39 is not inserted between the pair of female side contact portions 17a, the pair of female side contact portions 17a The distance between the contact portions 17 a is formed to be smaller than the thickness of the plate-type electrode 39. For this reason, when the plate-type electrode 39 is inserted between the pair of female contact portions 17a, the pair of female-side contact portions 17a are elastically deformed in directions away from each other and pressed against both surfaces of the plate-type electrode 39. Contact.

次に、電装カプラー１の着脱装置の動作について説明する。走行機体７０と耕耘作業機９０を連結する場合には、図１及び図２に示すように、ヒッチフレーム８０のフック８２をトップマスト９８の下にもぐり込ませ、フック８２をピン９８ａに係止して３点リンク連結機構７２が上側に移動するように操作して、ヒッチフレーム８０を二点鎖線で示したヒッチフレーム８０の位置から実線で示したヒッチフレーム８０の位置側に移動させ、耕耘作業機９０を吊り上げる。すると、耕耘作業機９０がこのピン９８ａを中心として円弧上に前側に回動して、耕耘作業機９０の連結ピン９１が係止プレート８３に係止される。 Next, the operation of the attachment / detachment device for the electrical coupler 1 will be described. When connecting the traveling machine body 70 and the tilling work machine 90, as shown in FIGS. 1 and 2, the hook 82 of the hitch frame 80 is inserted under the top mast 98 and the hook 82 is locked to the pin 98a. Then, the three-point link connecting mechanism 72 is operated so as to move upward, and the hitch frame 80 is moved from the position of the hitch frame 80 indicated by the two-dot chain line to the position of the hitch frame 80 indicated by the solid line, The work machine 90 is lifted. Then, the tilling work machine 90 rotates forward on the arc around the pin 98a, and the connection pin 91 of the tilling work machine 90 is locked to the locking plate 83.

ここで、連結ピン９１が係止プレート８３に嵌入し始めると、雌側カプラー３０と雄側カプラー１０とが接触し始め、図６（ａ）（横断面図、縦断面図）に示すように、雄側カプラー１０の第一傾斜誘導部１１ａが雌側カプラー３０の第一傾斜誘導部３２ａに接触して芯出し作用がなされて、雄側カプラー１０の第一直線誘導部１１ｂが雌側カプラー３０の第一直線誘導部３２ｂ内を進む。そして、さらに雌側カプラー３０が雄側カプラー側に移動すると、図６（ｂ）（横断面図、縦断面図）に示すように、雌側カプラー３０の第二傾斜誘導部３５ａが雄側カプラー１０の第二傾斜誘導部１１ｃに接触して芯出し作用がなされる。 Here, when the connecting pin 91 starts to be fitted into the locking plate 83, the female coupler 30 and the male coupler 10 start to come into contact with each other, as shown in FIG. 6A (transverse and vertical sectional views). The first inclination guiding part 11a of the male coupler 10 contacts the first inclination guiding part 32a of the female coupler 30 to perform the centering action, and the first linear guiding part 11b of the male coupler 10 is the female coupler 30. In the first straight line guiding portion 32b. When the female coupler 30 further moves to the male coupler side, as shown in FIG. 6B (transverse and vertical cross-sectional views), the second inclination guiding portion 35a of the female coupler 30 is moved to the male coupler. The centering action is performed in contact with the tenth second inclination guiding portion 11c.

そして、さらに雌側カプラー３０が雄側カプラー側に移動すると、図６（ｃ）（横断面図、縦断面図）に示すように、雌側カプラー３０の第二直線誘導部３５ｂが雄側カプラー１０の第二直線誘導部１１ｄ内にはいり込み、雌側カプラー３０の第三傾斜誘導部３５ｃが雄側カプラー１０の第三傾斜誘導部１３ａに接触して芯出し作用がなされる。これと同時に、雄側カプラー１０の第一直線誘導部１１ｂが雌側カプラー３０の第一直線誘導部３２ｂ内をさらに進む。ここで、両カプラーの第一直線誘導部１１ｂ，３２ｂ間の芯出しの精度は、第二直線誘導部１１ｄ，３５ｂ間のそれよりも低いので、雌側カプラー３０が第一直線誘導部１１ｂに引っかかって雌側カプラー３０の移動がロックされることはない。 When the female coupler 30 further moves to the male coupler side, as shown in FIG. 6C (transverse and vertical sectional views), the second linear guide portion 35b of the female coupler 30 is moved to the male coupler. 10, the third inclined guiding portion 35c of the female coupler 30 comes into contact with the third inclined guiding portion 13a of the male coupler 10 to perform a centering action. At the same time, the first straight guide portion 11 b of the male coupler 10 further advances in the first straight guide portion 32 b of the female coupler 30. Here, since the accuracy of centering between the first linear guiding portions 11b and 32b of both couplers is lower than that between the second linear guiding portions 11d and 35b, the female coupler 30 is caught by the first linear guiding portion 11b. The movement of the female coupler 30 is not locked.

そして、さらに雌側カプラー３０が雄側カプラー側に移動すると、図６（ｄ）（横断面図、縦断面図）に示すように、雌側カプラー３０の第三直線誘導部３５ｄが雄側カプラー１０の第三直線誘導部１３ｂ内を進み、雌側カプラー３０のプレートタイプの電極３９の雄型接触部３９ａがソケットタイプの電極１７の一対の雌型接触部１７ａ間に挿入される。そして、さらに雌側カプラー３０が雄側カプラー側に移動すると、図６（ｅ）（横断面図、縦断面図）に示すように、雌側カプラー３０の第三直線誘導部３５ｄが雄側カプラー１０の第三直線誘導部１３ｂ内を進み、雄型接触部３９ａが一対の雌型接触部１７ａ間に入り込み、一対の雌型接触部１７ａは拡開する方向に押し広げられて雄型接触部３９ａの両面に押圧接触して、両カプラーが合体して両カプラーに接続されたケーブルが電気的に接続される。 When the female coupler 30 further moves to the male coupler side, as shown in FIG. 6D (transverse and vertical cross-sectional views), the third linear guide portion 35d of the female coupler 30 is moved to the male coupler. 10, the male contact portion 39 a of the plate-type electrode 39 of the female coupler 30 is inserted between the pair of female contact portions 17 a of the socket-type electrode 17. When the female coupler 30 further moves to the male coupler side, as shown in FIG. 6E (transverse cross-sectional view, vertical cross-sectional view), the third linear guide portion 35d of the female coupler 30 moves to the male coupler. 10, the male contact portion 39a enters between the pair of female contact portions 17a, and the pair of female contact portions 17a is pushed and expanded in the expanding direction. The two couplers 39a are pressed and brought into contact with each other, and the two couplers are joined together to electrically connect the cables connected to both couplers.

ここで、雄型接触部３９ａに土等の塵が付着していても、この塵は、雄型接触部３９ａが一対の雌型接触部１７ａ間に入り込むときに雌型接触部１７ａによって掻き取られるようにして雄型接触部３９ａから取り除かれる。このため、両接触部が接触不良になる虞を未然に防止することができる。 Here, even if dust such as dirt adheres to the male contact portion 39a, the dust is scraped off by the female contact portion 17a when the male contact portion 39a enters between the pair of female contact portions 17a. Removed from the male contact portion 39a. For this reason, it is possible to prevent the possibility of contact failure between the two contact portions.

また雌側カプラー３０及び雄側カプラー１０の両カプラーは複数段階の直線誘導部を有し、両カプラーの嵌合は内側に行くほどより精度の高い芯出しがなされる嵌合となっているので、一段階目の直線誘導部では、接近する両カプラーの軸芯がずれていても、雌側カプラー３０の移動がロックされる虞はなく、両カプラーの軸芯のずれを小さくすることができる。また二段階目以降の直線誘導部では、カプラー接近方向上流側の嵌合誘導部によって両カプラーの軸芯のずれが既に小さくされているので、二段階目以降の直線誘導部の芯出しの精度が高くなっていても、雌側カプラー３０の移動がロックされる虞はない。このため、接近する雌側カプラー３０の移動に応じて両カプラーの軸芯のずれをより小さくして一致させることができ、雌側カプラー３０の雌側コネクタ部３５と雄側カプラー１０の雄側コネクタ部１３を合体させて両カプラーに繋がる配線を電気的に確実に接続することができる。 Further, both the female coupler 30 and the male coupler 10 have a plurality of stages of linear guiding portions, and the fitting of both couplers is a fitting with higher precision centering toward the inside. In the first-stage linear guide portion, there is no possibility that the movement of the female coupler 30 is locked even if the shaft centers of the two approaching couplers are displaced, and the displacement of the shaft centers of the two couplers can be reduced. . In the linear induction portion of the second stage or later, since the displacement of the axis of the two coupler by fitting the induction portion of the coupler approaching the upstream side has already been reduced, the accuracy of the centering of the linear guiding portion of the second stage or later Even if the height is high, there is no possibility that the movement of the female coupler 30 is locked. For this reason, the shift of the axial center of both couplers can be made smaller and matched according to the movement of the approaching female coupler 30, and the female connector portion 35 of the female coupler 30 and the male side of the male coupler 10 can be matched. It is possible to electrically and reliably connect the wiring connected to both couplers by combining the connector portion 13.

また雄側カプラー１０は前後方向及びこれに直交する方向に移動可能に所定範囲移動可能に設けられているので、両カプラーが直線的に接近せずに所定角度を有して接近してもその角度を容易に吸収しながら接近することができ、雄側カプラー１０が角度を有したままでロックされる虞がない。また両カプラーの接続が失敗した場合でも、雄側カプラー１０はスプリング８９に抗してボルト先端側に移動するので、両カプラーが損傷する事態を未然に防止することができる。また両カプラーが非接続時では、雄側カプラー１０のソケットタイプの電極１７は奥側に入り込んでいて雨水が浸入し難い構成である一方、雌側カプラー３０のプレートタイプの電極３９は突出した構成であるが、コントローラとは非接続であるので、仮に電極３９が短絡しても何ら支障はない。 Further, since the male coupler 10 is provided so as to be movable within a predetermined range so as to be movable in the front-rear direction and the direction orthogonal thereto, even if both couplers approach each other at a predetermined angle without approaching linearly. It is possible to approach while absorbing the angle easily, and there is no possibility that the male coupler 10 is locked while keeping the angle. Even if the connection between the two couplers fails, the male coupler 10 moves toward the bolt tip side against the spring 89, so that it is possible to prevent the two couplers from being damaged. When both couplers are not connected, the socket-type electrode 17 of the male coupler 10 enters the back side and rainwater does not easily enter, while the plate-type electrode 39 of the female coupler 30 protrudes. However, since it is not connected to the controller, there is no problem even if the electrode 39 is short-circuited.

さらに両カプラー連結時に多極の電極を同時に接続できるので、電極の接続操作に手間が掛からず、操作性が向上し、また雌側コネクタ部３５及び雄側コネクタ部１３は雄雌のカプラーで覆われているので、電極のシール性も向上し、耐久性を向上することができる。 Furthermore, since both electrodes can be connected at the same time when both couplers are connected, the electrode connection operation is not time-consuming and the operability is improved. The female connector 35 and the male connector 13 are covered with male and female couplers. Therefore, the sealing property of the electrode can be improved and the durability can be improved.

なお、前述した実施例では、電源を走行機体側に設けたが、耕耘作業機側に設けてもよい。また作業機は、耕耘作業機９０の他に畦塗り機、溝掘り機でもよい。 In addition, in the Example mentioned above, although the power supply was provided in the traveling machine body side, you may provide in the tilling work machine side. In addition to the tilling work machine 90, the work machine may be a hull coater or a ditching machine.

本発明の一実施形態に係わる電装カプラーの着脱装置を搭載した耕耘作業機の側面図を示す。The side view of the tillage working machine which mounts the attachment / detachment device of the electrical coupler concerning one embodiment of the present invention is shown. ヒッチフレーム側と作業機側に取り付けられて電装カプラーの側面図を示す。The side view of the electrical coupler attached to the hitch frame side and the work machine side is shown. ヒッチフレームを図２のＡ矢視から見たときの雄側カプラーの背面図を示す。The rear view of a male side coupler when a hitch frame is seen from A arrow of FIG. 2 is shown. ヒッチフレームを図２のＢ矢視から見たときの雌側カプラーの正面図を示す。The front view of a female side coupler when a hitch frame is seen from the B arrow view of FIG. 2 is shown. 電装カプラーの断面図を示し、同図（ａ）は電装カプラーの横断面図であり、同図（ｂ）は電装カプラーの縦断面図である。A sectional view of the electrical coupler is shown, in which (a) is a transverse sectional view of the electrical coupler, and (b) is a longitudinal sectional view of the electrical coupler. 雄側カプラーと雌側カプラーの接続動作を説明するための両カプラーの横断面図及び縦断面図を示す。The cross-sectional view and longitudinal cross-sectional view of both the couplers for demonstrating the connection operation | movement of a male side coupler and a female side coupler are shown. 従来の電装カプラーの着脱装置を示し、同図（ａ）は電装カプラーの要部断面図であり、同図（ｂ）は同図（ａ）のＡ矢視から見た雄側カプラーの背面図であり、同図（ｃ）は同図（ａ）のＢ矢視から見た雌側カプラーの正面図である。1 shows a conventional electrical coupler attaching / detaching device, in which FIG. 1 (a) is a sectional view of an essential part of the electrical coupler, and FIG. 2 (b) is a rear view of the male coupler viewed from the direction of arrow A in FIG. FIG. 10C is a front view of the female coupler as viewed from the direction of arrow B in FIG.

１電装カプラー
１０雄側カプラー
１１ａ，３２ａ第一傾斜誘導部
１１ｂ，３２ｂ第一直線誘導部（嵌合誘導部）
１１ｃ，３５ａ第二傾斜誘導部
１１ｄ，３５ｂ第二直線誘導部（嵌合誘導部）
１３ｂ，３５ｄ第三直線誘導部（嵌合誘導部）
１３雄側コネクタ部（コネクタ部）
１７ソケットタイプの電極（電極）
１７ａ雄型接触部（接触部）
３０雌側カプラー
３１凹部
３５雌側コネクタ部（コネクタ部）
３９プレートタイプの電極（電極）
７０走行機体（トラクタ等本体）
８７固定部材
８８ボルト（ピン）
８９スプリング
９０耕耘作業機（作業機） DESCRIPTION OF SYMBOLS 1 Electrical coupler 10 Male coupler 11a, 32a 1st inclination induction | guidance | derivation part 11b, 32b 1st linear induction | guidance | derivation part (fitting induction | guidance | derivation part)
11c, 35a 2nd inclination guidance part 11d, 35b 2nd linear guidance part (fitting guidance part)
13b, 35d Third linear guiding part (fitting guiding part)
13 Male connector (connector)
17 Socket-type electrode (electrode)
17a Male contact part (contact part)
30 Female coupler 31 Recess 35 Female connector (connector)
39 Plate type electrode (electrode)
70 Traveling machine (Tractor body)
87 Fixing member 88 Bolt (pin)
89 Spring 90 Tillage work machine (work machine)

Claims

An electrical coupler attachment / detachment device comprising a female coupler having a recess and a male coupler fitted to the female coupler,
It said provided one of the female coupler and the male coupler tractors the body side is provided with the other one on the work vehicle side,
The male coupler includes a first inclination guiding portion provided on the connection side outer surface and inclined outward, and a first linear guiding portion connected to the first inclination guiding portion, and provided on the connection side inner surface. And a second linear guiding part that is connected to the second linear guiding part, and has a plurality of electrodes in the vicinity of the inner central part of the second linear guiding part. Connector part is formed,
The female-side coupler includes a first inclination guide part that is provided on the inner surface of the connection side and is inclined inward, and a first linear guide part that is connected to the first inclination guide part. A second inclination guiding portion that is located on the inside and is inclined outward, and a second linear guiding portion that is connected to the second inclination guiding portion and guides the second linear guiding portion of the male coupler, and A connector part having a plurality of electrodes is formed in the vicinity of the inner center part of the second linear guiding part,
The connector portion of the female coupler is a fitting that is more accurately centered while moving while guiding the first linear guide portion and the second linear guide portion of the coupler while approaching both couplers. An electrical coupler attaching / detaching device characterized in that the connector portion of the male coupler is combined.

The first linear guiding portion and the second linear guiding portion of the both couplers have a positional relationship in which the fitting of the second linear guiding portion starts after the first linear guiding portion is fitted. Item 2. An electrical coupler attachment / detachment device according to Item 1 .

Said male coupler over the between the tractor body side fixing member disposed in the concatenated hitch frame to the rear of, provided through a spring winding the pin and the pin, the fixing member unloading device of the electric coupler according to claim 1 or 2, characterized in that it is supported a predetermined range movable in the longitudinal direction and a direction substantially perpendicular to the contrary.

The connector part of either the female-side coupler or the male-side coupler has a plate-type electrode, and the other connector part has elasticity when the plate-type electrode is inserted. attachment apparatus of the electrical couplers described in claim 1, characterized in that it comprises a flat portion and a pressure contact socket type electrode of the plate-type electrodes push the contact portion 3.