JP2010047378A - Refuse throw-in box of refuse collection vehicle - Google Patents

Refuse throw-in box of refuse collection vehicle Download PDF

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JP2010047378A
JP2010047378A JP2008213792A JP2008213792A JP2010047378A JP 2010047378 A JP2010047378 A JP 2010047378A JP 2008213792 A JP2008213792 A JP 2008213792A JP 2008213792 A JP2008213792 A JP 2008213792A JP 2010047378 A JP2010047378 A JP 2010047378A
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dust
arm
box
open
opening
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JP5079636B2 (en
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Yusuke Okubo
優介 大久保
Seiji Irie
精二 入江
Kazue Kawanobe
和枝 河野辺
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Subaru Corp
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Fuji Heavy Industries Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a refuse throw-in box of a refuse collection vehicle which comprises an opening/closing door for opening and closing a refuse throw-in hole, which is miniaturized and which has superior maintainability. <P>SOLUTION: In this refuse throw-in box, a roller 18 movably engaged with a guide rail 11 which extends along both sides of the refuse throw-in hole 7 is installed at the bottom end of the opening/closing door 15, and a link mechanism 20 for guiding the upper part of the opening/closing door 15 which moves between the closed position and the opened position along arcuate first path r1 and second path r2 stepwise according to the movement is installed between the side panel 8 of the refuse throw-in box 5 and the upper part of the opening/closing door 15. Since the operating range of the link mechanism 20 is reduced, the footprint on a space of the link mechanism 20 can be reduced, and the refuse throw-in box 5 can be miniaturized. Also, the reliability and the maintainability of the refuse throw-in box can be enhanced by simplifying the link mechanism 20. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、塵芥収集車の塵芥投入箱に関し、特に塵芥投入箱に後面に開口する塵芥投入口を開閉する開閉扉を備えた塵芥収集車の塵芥投入箱に関する。   The present invention relates to a dust collection box of a dust collection vehicle, and more particularly, to a dust collection box of a dust collection vehicle provided with an open / close door that opens and closes a dust collection opening opened on a rear surface of the dust collection box.

一般に塵芥収集車は、車両の中央に塵芥収容箱が設けられ、この塵芥収容箱の後方に塵芥投入箱が配置されている。塵芥投入箱の後面には塵芥を投入するための塵芥投入口が開口し、塵芥投入口には走行中に塵芥投入箱内の塵芥や汚水等が飛散しないように開閉扉が設けられている。この開閉扉を持ち上げて塵芥投入口を開き、塵芥投入口から塵芥投入箱内に投入された塵芥を塵芥積込装置によって塵芥収容箱内に積み込むように構成されている。   Generally, in a garbage collection vehicle, a dust storage box is provided in the center of the vehicle, and a dust input box is disposed behind the dust storage box. A dust input port for supplying dust is opened on the rear surface of the dust input box, and an open / close door is provided at the dust input port so that dust, sewage, and the like in the dust input box are not scattered during traveling. The open / close door is lifted to open the dust inlet, and the dust thrown into the dust box from the dust inlet is loaded into the dust container by the dust loading device.

この塵芥投入口を開閉する開閉扉装置は、例えば特許文献１及び特許文献２に開示されるように、塵芥投入口の両側に沿って上下方向に延在するガイドレールに転動可能に係合するローラを開閉扉の下端両側に設け、基端が塵芥投入箱の外部に軸支され先端が開閉扉の上部に軸支されたアームを備える。かかる構成において、塵芥投入口が閉鎖された状態から開閉扉を上方に押し上げると、アームが上方に回動すると共にローラがガイドレールに沿って移動し、開閉扉が塵芥投入箱の後面外側に沿って上方に誘導されて塵芥投入口が開放される。一方、塵芥投入口が開放された状態から開閉扉を下方に押し下げると、アームが下方に回動すると共にローラがガイドレールに沿って下降して開閉扉が塵芥投入口を閉鎖する。   The open / close door device that opens and closes the dust inlet is, for example, disclosed in Patent Literature 1 and Patent Literature 2 so as to be able to roll on a guide rail extending in the vertical direction along both sides of the dust inlet. There are provided rollers on both sides of the lower end of the open / close door, and an arm having a base end pivotally supported on the outside of the dust box and a tip end pivotally supported on the upper portion of the open / close door. In such a configuration, when the door is pushed upward from the state where the dust inlet is closed, the arm rotates upward and the roller moves along the guide rail, and the door opens along the outer rear surface of the dust box. The dust inlet is opened by being guided upward. On the other hand, when the opening / closing door is pushed downward from the state where the dust inlet is opened, the arm rotates downward and the roller descends along the guide rail, and the opening / closing door closes the dust inlet.

一方、塵芥投入口から塵芥を投入する作業を行う際には、塵芥収集車の運転手は塵芥収集車を停車させ、作業者に塵芥投入作業を行わせる。この塵芥投入作業中に通行人や主に塵芥収集車の後方から走行してくる車両等に塵芥収集車が停車して作業中であることを知らせるテールランプや作業表示灯が塵芥投入箱の後面に設けられている。また、塵芥収集車の運転手が塵芥投入口付近の作業者の作業状況を確認するためのバックアイカメラ等のオプション部品を備える場合もある。   On the other hand, when performing the operation of introducing dust from the dust input port, the driver of the dust collection vehicle stops the dust collection vehicle and causes the operator to perform the dust injection operation. A tail lamp and work indicator lights on the back of the dust box indicate that a dust collector has stopped working on a passerby or a vehicle traveling mainly from behind the garbage truck during the dumping operation. Is provided. In addition, there are cases where the driver of the garbage truck has optional parts such as a back eye camera for confirming the work status of the worker near the dust inlet.

しかし、このような塵芥収集車にあっては、開閉扉の開閉操作の際に開閉扉の上部が塵芥投入箱の外部に軸支されたアームの基端を中心とする半円軌道を移動しながら塵芥投入箱の後面外側に沿って昇降することから、塵芥投入箱の後面外側に沿って上昇した開放位置の開閉扉がテールランプ及び作業表示灯の視認性やバックアイカメラの視界に影響を及ぼすことがある。   However, in such a garbage collection vehicle, when the door is opened and closed, the upper part of the door moves on a semicircular track centered on the base end of the arm pivotally supported outside the dust box. However, since the door is lifted up and down along the rear side outside of the dust box, the open / closed door that is raised along the outside of the rear side of the dust box affects the visibility of the tail lamp and work indicator and the view of the back eye camera. Sometimes.

この対策として開閉扉の開放時においてもバックアイカメラの視界が確保でき、かつテールランプや作業表示灯の視認性を確保するために、開放状態における開閉扉を塵芥投入口の上方に配設されるカバー部材の裏側に隠蔽収容する塵芥投入箱が特許文献３によって提案されている。特許文献３の塵芥投入箱を図１２を参照して説明する。   As a countermeasure, the open / close door is placed above the dust inlet in order to ensure the visibility of the back-eye camera even when the open / close door is opened and to ensure the visibility of the tail lamp and work indicator lamp. Japanese Patent Application Laid-Open No. 2004-133867 proposes a dust box that is concealed and accommodated on the back side of a cover member. The dust box of Patent Document 3 will be described with reference to FIG.

図１２は、塵芥投入箱１００の構造を示す分解斜視図である。塵芥投入箱１００の後面に塵芥投入口１０２及び塵芥投入口１０２の上方に隣接して表示灯１０５等を装着するカバー部材１０３を設ける。また、塵芥投入口１０２の両側に対向する各サイドパネル１０４にそれぞれ対向して上下一対のガイドレール１０６、１０７を設ける。一方、開閉扉１１０の前部両側にガイドレール１０６に係合して転動するローラ１１１及び後部両側にガイドレール１０７に係合して転動するローラ１１２を設ける。更に、モータによって回転駆動されるシャフト１１５に設けられたピニオン１１６及び開閉扉１１０にピニオン１１６に噛合するラック１１７が設けられる。   FIG. 12 is an exploded perspective view showing the structure of the dust box 100. On the rear surface of the dust input box 100, a dust input port 102 and a cover member 103 for mounting the indicator lamp 105 and the like are provided adjacent to the upper side of the dust input port 102. Further, a pair of upper and lower guide rails 106 and 107 are provided so as to face the side panels 104 facing both sides of the dust inlet 102, respectively. On the other hand, a roller 111 that engages with the guide rail 106 and rolls on both sides of the front part of the opening / closing door 110 and a roller 112 that engages with the guide rail 107 and rolls on both sides of the rear part. Further, a pinion 116 provided on a shaft 115 that is rotationally driven by a motor, and a rack 117 that meshes with the pinion 116 are provided on the opening / closing door 110.

そして、開閉扉１１０が塵芥投入口１０２を閉鎖した状態で、モータによってピニオン１１６を回転駆動することによってローラ１１１及び１１２がそれぞれガイドレール１０６、１０７に沿って転動して開閉扉１１０がカバー部材１０３の裏側に隠蔽された開放位置に移動する。一方、開閉扉１１０が開放位置においてモータによってピニオン１１６を逆方向に回転駆動することによりローラ１１１及び１１２がそれぞれガイドレール１０６、１０７に沿って転動して開閉扉１１０が塵芥投入口１０２を閉じる閉鎖位置に移動する。   Then, with the door 110 closed with the dust inlet 102, the pinion 116 is rotated by a motor so that the rollers 111 and 112 roll along the guide rails 106 and 107, respectively. Move to the open position concealed on the back side of 103. On the other hand, when the open / close door 110 is driven to rotate the pinion 116 in the reverse direction by the motor, the rollers 111 and 112 roll along the guide rails 106 and 107, respectively, and the open / close door 110 closes the dust inlet 102. Move to the closed position.

実開平６−８３１３公報Japanese Utility Model Publication No. 6-8313 特開２００１−１９１０６号公報JP 2001-19106 A 特開２００５−３１４０６１号公報Japanese Patent Laid-Open No. 2005-314061

上記特許文献３によると、開閉扉１１０を開放位置に移動した際に開閉扉１１０が表示灯１０５等を装着したカバー部材１０３の裏側に隠蔽して収容され、カバー部材１０３に設けられた表示灯１０５等の視認性が確保できる。   According to Patent Document 3, when the opening / closing door 110 is moved to the open position, the opening / closing door 110 is concealed and accommodated on the back side of the cover member 103 to which the indicator lamp 105 or the like is attached, and is provided on the cover member 103. Visibility such as 105 can be secured.

しかし、塵芥投入箱１００の両サイドパネル１０４にそれぞれ対向して配設された上下一対のガイドレール１０６、１０７に、開閉扉１１０の両側に設けられた各ローラ１１１、１１２を転動可能に係合して開閉扉１１０を塵芥投入口１０２を閉鎖する閉鎖位置と開放位置との間を円滑に移動させるには、各ガイドレール１０６、１０７及び開閉扉１１０に配設される各ローラ１１１、１１２の高い組み立て精度が要求され、ひいては塵芥投入箱に高い組み立て精度が要求されて生産性の低下を招くことが懸念される。   However, the rollers 111 and 112 provided on both sides of the door 110 are movably engaged with a pair of upper and lower guide rails 106 and 107 disposed opposite to both side panels 104 of the dust box 100, respectively. In addition, in order to smoothly move the opening / closing door 110 between the closed position where the dust inlet 102 is closed and the open position, the guide rails 106, 107 and the rollers 111, 112 disposed on the opening / closing door 110 are used. There is a concern that a high assembly accuracy is required, and that the dust box is required to have a high assembly accuracy, leading to a decrease in productivity.

また、塵芥投入箱内に可動部であるシャフト１１５、ラック１１７、ピニオン１１６等が配置されることから、これらの可動部の保守点検や補修作業は作業スペースが極めて制限された塵芥投入箱内に塵芥投入口から頭部や体を入れた姿勢で行うことが余儀なくされて作業者の負担が大きくなる。この塵芥投入箱内における可動部のメンテナンス作業は厄介で作業性の低下が懸念される。   Further, since the shaft 115, the rack 117, the pinion 116, etc., which are movable parts, are arranged in the dust box, maintenance and inspection of these movable parts are performed in the dust box where the work space is extremely limited. It is forced to carry out with the head and body inserted through the dust inlet, increasing the burden on the operator. The maintenance work of the movable part in the dust box is troublesome and there is a concern that the workability is lowered.

また、ガイドレール１０６及びローラ１１１に代えて上記特許文献１及び特許文献２と同様に塵芥投入箱１００内と開閉扉１１０の上端との間にアームを回動可能に架設することによって組み立て精度の低減を可能にすることもできるが、このアームの塵芥投入箱に軸支される基端から開閉扉に軸支される先端までの長さは、開閉扉を誘導する円弧状の軌道の半径と同等の長さとなり、アームの長尺化に伴って塵芥投入箱１００内におけるアームの回動に必要な占有スペースが大きくなり、塵芥投入箱の大型化を招き塵芥収集車の設計が制限される要因となる。   Further, in place of the guide rail 106 and the roller 111, as in Patent Document 1 and Patent Document 2, an arm is rotatably installed between the dust box 100 and the upper end of the door 110 so that the assembly accuracy is improved. The length from the base end pivotally supported by the dust input box to the tip end pivotally supported by the open / close door is the radius of the arc-shaped track that guides the open / close door. As the length of the arm increases, the occupied space necessary for the arm to rotate in the dust input box 100 increases and the size of the dust input box increases, which limits the design of the dust collector. It becomes a factor.

従って、かかる点に鑑みなされた本発明の目的は、塵芥投入口を開閉する開閉扉を備えた塵芥投入箱の小型化が得られると共に優れたメンテナンス性が確保できる塵芥収集車の塵芥投入箱を提供することにある。   Accordingly, an object of the present invention made in view of such a point is to provide a dust container for a dust collector that can reduce the size of a dust container having an opening / closing door that opens and closes a dust inlet and can ensure excellent maintainability. It is to provide.

上記目的を達成する請求項１に記載の塵芥収集車の塵芥投入箱の発明は、塵芥投入箱の後面下部に塵芥投入口が開口すると共に、該塵芥投入口の上方に隣接して後面上部を覆うカバー部材が配設され、上記塵芥投入口を閉鎖する閉鎖位置とカバー部材の裏側に収容されて塵芥投入口を開放する開放位置との間を移動する開閉扉を備えた塵芥収集車の塵芥投入箱において、上記塵芥投入口の両側に沿って上下方向に延在して設けられた一対のガイドレールと、上記開閉扉の下端部に設けられて上記各ガイドレールに移動可能に係合する一対のガイド部材と、塵芥投入箱と開閉扉の上部との間に架設され、上記閉鎖位置と開放位置との間で移動する開閉扉の上部を連続する複数の円弧状の軌道に沿って順次誘導するリンク機構とを備えたことを特徴とする。   According to a first aspect of the present invention, there is provided a dust input box for a dust collecting vehicle, wherein a dust input port is opened at a lower portion of the rear surface of the dust input box, and an upper portion of the rear surface is adjacent to the upper portion of the dust input port. A dust collecting vehicle garbage provided with an opening / closing door which is disposed between a closed position where a covering member is disposed and which closes the dust inlet and which is housed on the back side of the cover member and which opens the dust inlet. In the charging box, a pair of guide rails extending in the vertical direction along both sides of the dust inlet and a lower end portion of the open / close door are movably engaged with the guide rails. Sequentially along a plurality of arcuate orbits that extend between the pair of guide members, the dust box and the upper part of the open / close door, and the upper part of the open / close door that moves between the closed position and the open position. It has a link mechanism that guides To.

この発明によると、開閉扉の下端をガイドレールに係合して移動するガイド部材によって移動自在に支持し、開閉扉の上部をリンク機構によって複数の円弧状の軌道に沿って順次誘導して開閉扉を塵芥投入口を閉鎖する閉鎖位置とカバー部材の裏側に隠蔽される開放位置との間を移動するように構成することから、開閉扉の上部が移動する軌道が複数の円弧状に軌道の連続により形成され、開閉扉の上部を各円弧状に沿って誘導するリンク構成部材の短縮化が可能になる。この結果、塵芥投入箱内と開閉扉の上端との間に単一のアームを揺動可能に架設する場合に比べてリンク機構の作動範囲が極めて小さく、塵芥投入箱の小型化が得られる。   According to the present invention, the lower end of the open / close door is movably supported by the guide member that moves by engaging the guide rail, and the upper portion of the open / close door is sequentially guided along the plurality of arc-shaped tracks by the link mechanism. Since the door is configured to move between a closed position where the dust inlet is closed and an open position concealed behind the cover member, the track on which the upper part of the open / close door moves has a plurality of arcs. It is possible to shorten the link component member that is formed in a continuous manner and guides the upper part of the open / close door along each arc shape. As a result, the operating range of the link mechanism is extremely small compared with the case where a single arm is swingably installed between the inside of the dust box and the upper end of the open / close door, and the dust box can be downsized.

請求項２に記載の発明は、請求項１の塵芥収集車の塵芥投入箱において、上記リンク機構は、基端が上記塵芥投入箱に固定された第１回動軸に回動自在に軸支されて上下方向に回動する第１回動アームと、基端が該第１回動アームの先端と第２回動軸を介して回動自在に軸支されて上下方向に回動すると共に先端が開閉扉の上部と第３回動軸を介して回動自在に連結された第２回動アームとを備え、上記閉鎖位置と開放位置との間で移動する開閉扉の上部を該移動に伴って第２回動軸を中心に回動する第２回動アームによって円弧状の第１軌道に沿って誘導し、かつ上記第１回動アームと第２回動アームが接触して第１回動アームと第２回動アームとの相対回動が規制された状態で第１回動軸を中心に一体的に回動する第１回動アームと第２回動アームによって円弧状の第２軌道に沿って誘導することを特徴とする。   According to a second aspect of the present invention, in the refuse input box of the garbage truck according to the first aspect, the link mechanism is pivotally supported by a first rotary shaft whose base end is fixed to the dust input box. The first pivoting arm that pivots in the vertical direction and the base end pivotally supported by the distal end of the first pivoting arm and the second pivoting shaft to pivot in the vertical direction. The top end of the door is provided with a top of the door and a second turning arm rotatably connected via a third turning shaft, and the top of the door is moved between the closed position and the open position. Accordingly, the second rotation arm that rotates about the second rotation axis is guided along the arc-shaped first track, and the first rotation arm and the second rotation arm come into contact with each other and are guided by the second rotation arm. A first rotating arm and a second rotating integrally around the first rotating shaft in a state where relative rotation between the first rotating arm and the second rotating arm is restricted. Wherein the guiding along an arc-shaped second track by turning arm.

請求項３に記載の発明は、請求項１の塵芥収集車の塵芥投入箱において、上記リンク機構は、基端が上記塵芥投入箱に固定された第１回動軸に回動自在に軸支されて上下方向に回動する第１回動アームと、基端が該第１回動アームの先端と第２回動軸を介して回動自在に軸支されて上下方向に回動すると共に先端が開閉扉の上部と第３回動軸を介して回動自在に連結された第２回動アームとを備え、上記閉鎖位置から開放位置へ移動する開閉扉の上部を段階的に該移動に伴って第２回動軸を中心に上方に回動する第２回動アームによって円弧状の第１軌道に沿って誘導し、該誘導に連続して上記第１回動アームと第２回動アームが接触して該第１回動アームと第２回動アームとの相対回動が規制された状態で第１回動軸を中心に一体的に上方に回動する第１回動アームと第２回動アームによって円弧状の第２軌道に沿って誘導することを特徴とする。   According to a third aspect of the present invention, in the refuse input box of the garbage truck according to the first aspect, the link mechanism is pivotally supported by a first rotary shaft whose base end is fixed to the dust input box. The first pivoting arm that pivots in the vertical direction and the base end pivotally supported by the distal end of the first pivoting arm and the second pivoting shaft to pivot in the vertical direction. A top end of the open / close door includes a second rotary arm that is pivotably connected to the top of the open / close door via a third rotary shaft, and the upper part of the open / close door that moves from the closed position to the open position is moved stepwise. Accordingly, the second rotating arm that rotates upward about the second rotating shaft is guided along the arc-shaped first track, and the first rotating arm and the second rotation are continuously performed following the guidance. The moving arm comes into contact with the first rotating arm and the second rotating arm is restricted from rotating relative to the first rotating shaft. Wherein the guiding along an arc-shaped second track by a first pivot arm and a second pivot arm to rotate.

これら請求項２及び請求項３の発明によると、リンク機構が、塵芥投入箱に固定された第１回動軸に基端が回動自在に軸支された第１回動アームと、基端が第１回動アームの先端に第２回動軸を介在して回動自在に軸支されて先端が第３回動軸を介して開閉扉の上部に回動自在に連結された第２回動アームとによる簡単な構成であると共に、円弧状の第１軌道及び第２軌道を設定する第１回動アームと第２回動アームの短尺化が可能でありリンク機構の小型化が可能になり、リンク機構の占有スペースが小さく塵芥投入箱の小型化が可能になる。   According to the second and third aspects of the present invention, the link mechanism includes a first rotation arm whose base end is pivotally supported by the first rotation shaft fixed to the dust box, and the base end. Is pivotally supported at the tip of the first pivot arm via a second pivot shaft, and the tip is pivotally connected to the upper part of the open / close door via the third pivot shaft. In addition to the simple structure of the rotating arm, the first rotating arm and the second rotating arm that set the arc-shaped first track and the second track can be shortened, and the link mechanism can be downsized. Therefore, the space occupied by the link mechanism is small, and the dust box can be downsized.

また、リンク機構の簡素化によりリンク機構の信頼性が確保できる。更にリンク機構のメンテナンスが容易になる。   Further, the reliability of the link mechanism can be ensured by simplifying the link mechanism. Furthermore, maintenance of the link mechanism is facilitated.

請求項４に記載の発明は、請求項２または３の塵芥収集車の塵芥投入箱において、上記第２回動アームを上方に回動付勢する付勢手段を備えたことを特徴とする。   According to a fourth aspect of the present invention, in the dust bin of the second or third aspect of the garbage collection vehicle, the second rotational arm is provided with a biasing means that pivots upward.

この発明によると、リンク機構の第２回動アームを上方に回動付勢する付勢手段を備えることから、付勢手段による回動付勢が第２回動アームを引き上げるアシスト力として作用し、作業者による開閉扉を閉鎖位置から開放位置に押し上げに要求される開閉扉を押し上げる作業力が軽減される。   According to this invention, since the biasing means for biasing the second turning arm of the link mechanism upward is provided, the turning bias by the biasing means acts as an assisting force for pulling up the second turning arm. The work force required to push up the open / close door required to push the open / close door from the closed position to the open position by the operator is reduced.

請求項５に記載の発明は、請求項１〜４のいずれか１項に記載の芥収集車の塵芥投入箱において、上記リンク機構は塵芥投入箱のサイドパネルの外面に設けられたことを特徴とする。   According to a fifth aspect of the present invention, in the refuse collection box of the garbage collection vehicle according to any one of the first to fourth aspects, the link mechanism is provided on the outer surface of the side panel of the dust collection box. And

この発明によると、リンク機構を塵芥投入箱のサイドパネルの外面に設けることにより、塵芥投入箱内に配置する場合に比べてメンテナンス作業性が向上する。   According to the present invention, by providing the link mechanism on the outer surface of the side panel of the dust box, the maintenance workability is improved as compared with the case where the link mechanism is disposed in the dust box.

本発明によると、開閉扉の下端をガイドレールに係合して移動するガイド部材によって移動自在に支持し、開閉扉の上部をリンク機構によって複数の円弧状の軌道を順次段階的に切り換えて誘導することからリンク機構の小型化が得られ、かつリンク機構の占有スペースが小さく塵芥投入箱の小型化が可能になる。   According to the present invention, the lower end of the open / close door is movably supported by the guide member that engages and moves with the guide rail, and the upper portion of the open / close door is sequentially switched by a link mechanism to sequentially switch a plurality of arc-shaped tracks. As a result, the link mechanism can be downsized, and the space occupied by the link mechanism is small, and the dust box can be downsized.

以下、図１乃至図１２を参照して本発明の実施の形態を説明する。   Hereinafter, embodiments of the present invention will be described with reference to FIGS.

図１は塵芥収集車１の概要を示す側面図、図２は塵芥収集車１の後面図である。図３は、塵芥投入箱５の側面を開閉可能に覆うサイドカバー６を省略した塵芥投入箱５の側面図、図４は要部を示す後面図であり、図５は図４のＩ−Ｉ線断面図である。   FIG. 1 is a side view showing an outline of the garbage collection vehicle 1, and FIG. 2 is a rear view of the garbage collection vehicle 1. FIG. 3 is a side view of the dust box 5 with the side cover 6 covering the side surface of the dust box 5 so as to be openable and closable, FIG. 4 is a rear view showing the main part, and FIG. It is line sectional drawing.

塵芥収集車１は、図１及び図２に示すようにシャシー２の前部に運転室３が配置されており、その後方に塵芥収容箱４が搭載され、更に塵芥収容箱４の後方に塵芥投入箱５が連設される。塵芥投入箱５の後面下部に塵芥投入口７が開口し、この塵芥投入口７の上方に隣接する後面上部はカバー部材９によって覆われる。このカバー部材９の上部及び塵芥投入口７の近傍に作業表示灯やテールランプ等の表示灯１０が取り付けられる。更に、カバー部材９には図示しないバックアイカメラが装着される。また、塵芥投入口７を閉鎖する閉鎖位置と、カバー部材９の裏側に収容されて塵芥投入口７を開放する開放位置との間を移動可能に開閉扉１５が配設される。   As shown in FIGS. 1 and 2, the garbage truck 1 has a cab 3 disposed in the front part of the chassis 2, a dust container 4 mounted on the rear thereof, and a dust container 4 disposed behind the dust container 4. An input box 5 is provided continuously. A dust inlet 7 is opened at a lower portion of the rear surface of the dust inlet box 5, and an upper rear surface adjacent to the upper side of the dust inlet 7 is covered with a cover member 9. An indicator lamp 10 such as a work indicator lamp or a tail lamp is attached to the upper part of the cover member 9 and in the vicinity of the dust inlet 7. Further, a back eye camera (not shown) is attached to the cover member 9. In addition, an opening / closing door 15 is disposed so as to be movable between a closed position where the dust inlet 7 is closed and an open position which is accommodated on the back side of the cover member 9 and opens the dust inlet 7.

図３及び図４に示すように、塵芥投入箱５の後面下部に開口する塵芥投入口７の両側に沿ってサイドパネル８が互いに対向して設けられる。各サイドパネル８の後端には塵芥投入口７の両側に沿って斜め上下方向に延在して断面コ字状の案内溝１１ａを有するガイドレール１１が、該案内溝１１ａを互いに対向するようにして設けられている。こられガイドレール１１の案内溝１１ａに沿って塵芥投入口７を開閉するための開閉扉１５が昇降自在に設けられる。   As shown in FIGS. 3 and 4, side panels 8 are provided opposite to each other along both sides of the dust inlet 7 that opens at the lower rear portion of the dust inlet box 5. At the rear end of each side panel 8, guide rails 11 having guide grooves 11 a extending obliquely in the vertical direction along both sides of the dust inlet 7 and having a U-shaped guide groove 11 a so that the guide grooves 11 a face each other. Is provided. An open / close door 15 for opening and closing the dust inlet 7 is provided along the guide groove 11a of the guide rail 11 so as to be movable up and down.

開閉扉１５は、略矩形板状でその下端部外面に一対の把手１６を設けると共に、図５に示すようにその下端側面から突出する軸１７に回転自在にガイド部材としてのローラ１８を設け、ローラ１８が対応するガイドレール１１の案内溝１１ａに係合して案内溝１１ａ内を転動する。これにより開閉扉１５の移動に伴ってローラ１８がガイドレール１１にガイドされて転動しつつ移動することによって開閉扉１５の下部がガイドレール１１に沿って誘導される。   The open / close door 15 has a substantially rectangular plate shape and is provided with a pair of grips 16 on the outer surface of the lower end portion, and as shown in FIG. 5, a roller 18 as a guide member is provided rotatably on a shaft 17 protruding from the lower end side surface. The roller 18 engages with the guide groove 11a of the corresponding guide rail 11 and rolls in the guide groove 11a. As a result, the roller 18 is guided by the guide rail 11 and moves while rolling along with the movement of the opening / closing door 15, whereby the lower portion of the opening / closing door 15 is guided along the guide rail 11.

塵芥投入箱５の各サイドパネル８の外面と開閉扉１５の上部各端部との間に開閉扉１５の上部を誘導する左右のリンク機構２０が架設される。左右のリンク機構２０は同一構成であり、一方のリンク機構２０についてのみ図３及び図４を参照して説明する。   Left and right link mechanisms 20 that guide the upper part of the open / close door 15 are installed between the outer surface of each side panel 8 of the dust box 5 and the upper ends of the open / close door 15. The left and right link mechanisms 20 have the same configuration, and only one link mechanism 20 will be described with reference to FIGS.

リンク機構２０は、基端２３aがサイドパネル８の前端近傍においてサイドパネル８の外面に配設された断面コ字状のブラケット２１に固定されて車幅方向に延在する第１回動軸２２を介して回転自在に軸支された上下方向に回動する第１回動アームとなるリンクアームプレート２３と、リンクアームプレート２３の先端２３ｂに車幅方向に延在する第２回動軸２４を介在して基端２５ａが回動自在に軸支されて上下方向に回動する第２回動アームとなるリンクアーム２５を有し、リンクアーム２５の先端２５ｂが車幅方向に延在する第３回動軸２６を介して開閉扉１５の上端側部内面に設けられたブラケット２７と回動自在に連結される。   The link mechanism 20 has a base end 23 a fixed to a U-shaped bracket 21 disposed on the outer surface of the side panel 8 in the vicinity of the front end of the side panel 8, and extends in the vehicle width direction. A link arm plate 23 serving as a first rotation arm that is pivotally supported via a shaft and that rotates in the vertical direction, and a second rotation shaft 24 that extends in the vehicle width direction at the tip 23b of the link arm plate 23. The base end 25a is pivotally supported with a link interposed therebetween. The link arm 25 serves as a second rotating arm that rotates in the vertical direction. The distal end 25b of the link arm 25 extends in the vehicle width direction. It is rotatably connected to a bracket 27 provided on the inner surface of the upper end side portion of the open / close door 15 via a third rotation shaft 26.

ブラケット２１に基端２３ａが第１回動軸２２を介して連結され先端２３ｂが第２回動軸２４を介してリンクアーム２５の基端２５ａに連結されるリンクアームプレート２３は、基端２３ａと先端２５ｂとの間に上方にＬ字状に突出する第１回動規制部２３ｃが形成された略三角形に形成される。   The link arm plate 23 whose base end 23a is connected to the bracket 21 via the first rotary shaft 22 and whose tip 23b is connected to the base end 25a of the link arm 25 via the second rotary shaft 24 is the base end 23a. It is formed in a substantially triangular shape in which a first rotation restricting portion 23c protruding upward in an L shape is formed between the tip 25b and the tip 25b.

リンクアーム２５は、基端２５ａが第２回動軸２４を介してリンクアームプレート２３に連結され先端２５ｂが第３軸２６を介在してブラケット２７に連結される棒状であって、略軸方向中央部がサイドパネル８に配設される塵芥積込装置の駆動装置や各種機器との干渉を避けると共に後述する第２回動規制部２５ｃと第１回動規制部２３ｃとの相対当接位置を設定するために緩やかにＬ字状に屈曲し、かつ先端２５ｂ近傍が車幅方向に屈曲形成される。リンクアーム２５の基端２５ａ近傍にはリンクアームプレート２３に形成された第１回動規制部２３ｃと当接可能に対向する第２回動規制部２５ｃが形成される。   The link arm 25 has a rod shape in which the base end 25a is connected to the link arm plate 23 via the second rotation shaft 24 and the distal end 25b is connected to the bracket 27 via the third shaft 26, and has a substantially axial direction. Relative contact position between the second rotation restricting portion 25c and the first rotation restricting portion 23c, which will be described later, while avoiding interference with the drive device and various devices of the dust loading device whose central portion is disposed on the side panel 8. Is bent gently in an L shape, and the vicinity of the tip 25b is bent in the vehicle width direction. In the vicinity of the base end 25a of the link arm 25, a second rotation restricting portion 25c is formed so as to face the first rotation restricting portion 23c formed on the link arm plate 23 so as to come into contact therewith.

これにより、開放扉１５の押し上げに伴って開閉扉１５の下端がガイドレール１１に係合するローラ１８に誘導されてガイドレール１１に沿って上昇する。一方、開放扉１５の押し上げに伴ってリンク機構２０においては、リンクアームプレート２３がブラケット２１に軸支された第１回動軸２２を中心に若干回動するが、主に第２回動軸２４を中心に上方にリンクアーム２５が回動し、この回動するリンクアーム２５の先端２５ｂに設けられた第３回動軸２６は、第２回動軸２４と第３回動軸２６との離間距離を半径とするほぼ円弧状の第１軌道ｒ１に沿って上昇移動し、第３回動軸２６にブラケット２７を介して連結された開放扉１５の上部が第１軌道ｒ１に沿って誘導される。   As a result, as the open door 15 is pushed up, the lower end of the open / close door 15 is guided by the roller 18 engaged with the guide rail 11 and rises along the guide rail 11. On the other hand, in the link mechanism 20 as the open door 15 is pushed up, the link arm plate 23 is slightly rotated around the first rotation shaft 22 pivotally supported by the bracket 21, but mainly the second rotation shaft. The link arm 25 pivots upward about the center 24, and the third pivot shaft 26 provided at the distal end 25 b of the pivot link arm 25 is composed of the second pivot shaft 24, the third pivot shaft 26, and the like. The upper part of the open door 15 that moves upward along the substantially circular arc-shaped first track r1 having a radius of the separated distance and is connected to the third rotating shaft 26 via the bracket 27 extends along the first track r1. Be guided.

しかる後、リンクアームプレート２３に形成された第１回動規制部２３ｃとリンクアーム２５に形成された第２回動規制部２５ｃが当接することによりリンクアームプレート２３とリンクアーム２５の第２回動軸２４を中心とする相対回動が規制されて第１回動軸２２を中心にリンクアームプレート２３とリンクアーム２５が一体的に回動する。この回動によって第１回動軸２２と第３回動軸２６との離間距離を半径とする円弧状の第２軌道ｒ２に沿って開閉扉１５が誘導される。   Thereafter, the first rotation restricting portion 23c formed on the link arm plate 23 and the second rotation restricting portion 25c formed on the link arm 25 come into contact with each other, whereby the second rotation of the link arm plate 23 and the link arm 25 is performed. Relative rotation about the moving shaft 24 is restricted, and the link arm plate 23 and the link arm 25 rotate integrally about the first rotation shaft 22. By this rotation, the open / close door 15 is guided along an arc-shaped second track r2 having a radius of the distance between the first rotation shaft 22 and the third rotation shaft 26.

また、リンクアーム２５を、その基端２５ａ側を中心に先端２５ｂ側が上方となる方向へ回動付勢する付勢手段３０を備える。この付勢手段３０は、ブラケット２１より上方においてサイドパネル８の前端近傍に配設された掛止部３１とリンクアーム２５に形成された第２回動規制部２５ｃよりも先端２５ｂ側に固設された係止部３２との間に付勢部材である引張コイルばね３３が張力調整手段３４を介在して架設される。   Further, the link arm 25 is provided with a biasing means 30 for biasing the link arm 25 in a direction in which the distal end 25b side is upward with the base end 25a side as a center. The urging means 30 is fixed on the tip 25b side from the latching portion 31 disposed near the front end of the side panel 8 above the bracket 21 and the second rotation restricting portion 25c formed on the link arm 25. A tension coil spring 33, which is an urging member, is installed between the latched portion 32 and a tension adjusting means 34.

更に、ブラケット２１の下方には第１回動軸２２を中心に回動するリンクアームプレート２３の当接部となる下面２３ｄに当接してリンクアームプレート２３の下方への回動端を規制するストッパ３５が配設される。   Further, below the bracket 21, the lower end 23 d of the link arm plate 23 that rotates about the first rotation shaft 22 is brought into contact with the lower surface 23 d to restrict the downward rotation end of the link arm plate 23. A stopper 35 is provided.

このように構成されたリンク機構２０は、図２に実線で示すように開閉扉１５が下降して塵芥投入口７を閉鎖する閉鎖位置においては、リンクアームプレート２３の下面２３ｄがストッパ３５に当接してリンクアームプレート２３の回動が規制されると共に、リンクアームプレート２３の先端２３ｂと開閉扉１５に設けられたブラケット２７との間に回動自在に架設されたリンクアーム２５は、リンクアームプレート２３の第１回動規制部２３ｃと第２回動規制部２５ｃが互いに離間してリンクアームプレート２３に対してリンクアーム２５は第２回動軸２４を中心に回動可能な状態に保持されている。このときリンク機構２０によって開閉扉１５の上部が図３に実線で示す閉鎖位置に保持される。   In the link mechanism 20 configured in this manner, the lower surface 23d of the link arm plate 23 contacts the stopper 35 in the closed position where the open / close door 15 descends and closes the dust inlet 7 as shown by a solid line in FIG. The link arm plate 23 is in contact with the rotation of the link arm plate 23, and the link arm 25, which is rotatably supported between the tip 23 b of the link arm plate 23 and the bracket 27 provided on the opening / closing door 15, The first rotation restricting portion 23 c and the second rotation restricting portion 25 c of the plate 23 are separated from each other, and the link arm 25 is held in a state in which the link arm 25 can rotate around the second rotation shaft 24 with respect to the link arm plate 23. Has been. At this time, the upper part of the door 15 is held in the closed position indicated by the solid line in FIG.

また、開閉扉１５の下端側面に、把手１６に設けられたハンドルの操作により開閉扉１５が下降して塵芥投入口７を閉鎖する閉鎖位置と上昇してカバー部材９の裏側に隠蔽されて塵芥投入口７を開放した開放位置にロック及びロック解除するロック装置を備える。   Further, on the lower side surface of the opening / closing door 15, the opening / closing door 15 is lowered by the operation of a handle provided on the handle 16 and is raised to a closed position where the dust inlet 7 is closed, and the dust is hidden behind the cover member 9. A locking device is provided for locking and unlocking at the open position where the insertion port 7 is opened.

なお、図１に示すようにリンク機構２０が設けられる塵芥投入箱６の側面には、開閉自在のサイドカバー６が設けられている。このサイドカバー６は、塵芥投入箱６の側面に配置されるリンク機構２０及び付勢手段３０等を砂、泥、埃、日光等から保護すると共にリンク機構２０の点検及び補修、及び作業者が手、衣服等が積込装置の駆動部等に巻き込まれるのを防止するために設けられる。このサイドカバー６はその前端部が塵芥投入箱６の側面前端部にヒンジ６ａ等によって開閉自在に連結される。また、サイドカバー６が閉鎖されているときに、サイドカバー６の後端部を塵芥投入箱５の後側に固定するカバーロック部６ｂがサイドカバー６の後端に設けられている。   In addition, as shown in FIG. 1, the side cover 6 which can be opened and closed is provided in the side surface of the dust input box 6 in which the link mechanism 20 is provided. The side cover 6 protects the link mechanism 20 and the urging means 30 disposed on the side surface of the dust box 6 from sand, mud, dust, sunlight, etc. It is provided to prevent hands, clothes, etc. from being caught in the drive unit of the loading device. The front end portion of the side cover 6 is connected to the front side end portion of the side wall of the dust container 6 so as to be freely opened and closed by a hinge 6a or the like. Further, a cover lock portion 6 b for fixing the rear end portion of the side cover 6 to the rear side of the dust bin 5 when the side cover 6 is closed is provided at the rear end of the side cover 6.

次に図６乃至図１０を参照して開閉扉１５の開閉動作を説明する。   Next, the opening / closing operation of the door 15 will be described with reference to FIGS.

図３に実線で示すと共に図６に示す開閉扉１５は塵芥投入口７を閉鎖する閉鎖位置においては、各ローラ１８がガイドレール１１に係合して下部が保持される。一方、リンクアームプレート２３の下面２３ｄがストッパ３５に当接してリンクアームプレート２３の回動が規制されると共に、リンクアームプレート２３の先端２３ｂと開閉扉１５に固設されたブラケット２７との間に回動自在に架設されたリンクアーム２５の第２回動規制部２５ｃはリンクアームプレート２３の第１回動規制部２３ｃから離れた非接触状態に保持さ、リンクアームプレート２３に対してリンクアーム２５は第２揺動軸２４を中心に回動可能な状態に保持されている。そして、この開閉扉１５はロック装置によって閉鎖位置にロック保持されている。   In the closed position shown in FIG. 3 by the solid line and shown in FIG. 6, each roller 18 is engaged with the guide rail 11 and the lower part is held at the closed position where the dust inlet 7 is closed. On the other hand, the lower surface 23d of the link arm plate 23 abuts against the stopper 35 to restrict the rotation of the link arm plate 23, and between the tip 23b of the link arm plate 23 and the bracket 27 fixed to the open / close door 15. The second rotation restricting portion 25 c of the link arm 25 that is rotatably mounted on the link arm 25 is held in a non-contact state away from the first rotation restricting portion 23 c of the link arm plate 23, and is linked to the link arm plate 23. The arm 25 is held so as to be rotatable about the second swing shaft 24. The open / close door 15 is locked and held in the closed position by a lock device.

この塵芥投入口７を閉鎖する開閉扉１５を開放するには、把手１６に設けられたハンドルの操作により開閉扉１５を閉鎖位置に保持していたロック装置のロックを解除し、ガイドレール１１に移動可能に係合するローラ１８及びリンク機構２０によって塵芥投入口７を閉鎖する閉鎖位置に保持された開閉扉１５を把手１６によって上方の開放位置に向かって押し上げる。   In order to open the opening / closing door 15 that closes the dust inlet 7, the lock of the locking device that holds the opening / closing door 15 in the closed position is released by operating the handle provided on the handle 16, and the guide rail 11 is moved to the guide rail 11. The open / close door 15 held in the closed position for closing the dust inlet 7 by the roller 18 and the link mechanism 20 that are movably engaged is pushed up by the handle 16 toward the upper open position.

開放扉１５の押し上げに伴って図７に示すように開閉扉１５の下端がガイドレール１１に移動可能に係合するローラ１８によって誘導されてガイドレール１１に沿って開閉扉１５の下部が上昇する。一方、リンク機構２０においては、ブラケット２１に軸支された第１回動軸２２を中心にリンクアームプレート２３が若干回動するが、主に第２回動軸２４を中心に上方にリンクアーム２５が回動し、リンクアーム２５の先端２５ｂに設けられた第３回動軸２６に支持され開閉扉１５の上部は、第２回動軸２４と第３回動軸２６との離間距離を半径とするほぼ円弧状の第１軌道ｒ１に沿って上昇移動する。このとき引張コイルばね３３の張力がリンクアーム２５を上方に引き上げるアシスト力として作用し、作業者に要求される開閉扉１５を押し上げる作業力が軽減される。   As the opening door 15 is pushed up, as shown in FIG. 7, the lower end of the opening / closing door 15 is guided by the roller 18 movably engaged with the guide rail 11, and the lower portion of the opening / closing door 15 rises along the guide rail 11. . On the other hand, in the link mechanism 20, the link arm plate 23 rotates slightly about the first rotation shaft 22 pivotally supported by the bracket 21, but the link arm mainly moves upward about the second rotation shaft 24. The upper portion of the opening / closing door 15 supported by a third rotation shaft 26 provided at the tip 25b of the link arm 25 has a separation distance between the second rotation shaft 24 and the third rotation shaft 26. It moves upward along a substantially arc-shaped first trajectory r1 having a radius. At this time, the tension of the tension coil spring 33 acts as an assisting force for pulling the link arm 25 upward, and the working force for pushing up the open / close door 15 required by the operator is reduced.

開閉扉１５の上昇に伴ってリンクアーム２５が第２回動軸２４を中心に所定量上方に回動すると、図８に示すようにリンクアーム２５の第２回動規制部２５ｃがリンクアームプレート２３の第１回動規制部２３ｃに当接してリンクアームプレート２３とリンクアーム２５との相対回動が拘束される。   When the link arm 25 is rotated upward by a predetermined amount around the second rotation shaft 24 as the door 15 is raised, the second rotation restricting portion 25c of the link arm 25 is linked to the link arm plate as shown in FIG. 23, the relative rotation between the link arm plate 23 and the link arm 25 is restricted.

更に開閉扉１５が上方に押し上げられると、図９に示すようにローラ１８がガイドレール１１に誘導されて開閉扉１５の下部がガイドレール１１に沿って移動し、かつリンクアームプレート２３及びリンクアーム２５が共に第１回動軸２２を中心に一体的に上方に揺動して第１回動軸２２と第３回動軸２６との離間距離を半径とする第２軌道ｒ２に沿って開閉扉１５の上部が誘導される。   When the door 15 is further pushed upward, as shown in FIG. 9, the roller 18 is guided to the guide rail 11 so that the lower portion of the door 15 moves along the guide rail 11, and the link arm plate 23 and the link arm are moved. 25 are pivoted upwards and downwards about the first rotation shaft 22 and opened and closed along the second track r2 having a distance between the first rotation shaft 22 and the third rotation shaft 26 as a radius. The upper part of the door 15 is guided.

引き続き、開閉扉１５を押し上げると、図３に仮想線で示しかつ図１０に示すようにローラ１８がガイドレール１１に誘導されて開閉扉１５の下部がガイドレール１１に沿って移動し、かつ開閉扉１５の上部がリンクアームプレート２３とリンクアーム２５が第１回動軸２２を中心に一体的に回動して第１回動軸２２と第３回動軸２６との離間距離を半径とする第３回動軸２６が移動する第２軌道ｒ２に沿って誘導されて、開閉扉１５がカバー９の裏側に収容される開放位置まで上昇移動する。   Subsequently, when the door 15 is pushed up, the roller 18 is guided to the guide rail 11 as indicated by a phantom line in FIG. 3 and the lower portion of the door 15 moves along the guide rail 11 as shown in FIG. The upper portion of the door 15 has a link arm plate 23 and a link arm 25 that integrally rotate about the first rotation shaft 22, and the distance between the first rotation shaft 22 and the third rotation shaft 26 is a radius. The third pivot shaft 26 is guided along the second trajectory r <b> 2 that moves, and the open / close door 15 moves up to an open position that is accommodated on the back side of the cover 9.

このとき開閉扉１５の上昇時においても引張コイルばね３３の張力が、リンクアーム２５を上方に引き上げるアシスト力として作用し、作業者に要求される開閉扉１５を押し上げる作業力が軽減される。この開閉扉１５が塵芥投入口７を開放してカバー部材９の裏側に収容された開放位置においては、開閉扉１５の下部がガイドレール１１に嵌入するローラ１８によって開放位置に保持され、上部がリンク機構２０によって開放位置に保持されると共に、把手１６に設けられたハンドルの操作により開閉扉１５を開放位置にロック保持する。   At this time, even when the opening / closing door 15 is raised, the tension of the tension coil spring 33 acts as an assisting force to pull the link arm 25 upward, and the working force required to push up the opening / closing door 15 required by the operator is reduced. In the open position where the open / close door 15 opens the dust inlet 7 and is accommodated on the back side of the cover member 9, the lower part of the open / close door 15 is held in the open position by a roller 18 fitted into the guide rail 11, and the upper part is While being held in the open position by the link mechanism 20, the opening / closing door 15 is locked and held in the open position by operating a handle provided on the handle 16.

このように開放位置において開閉扉１５をカバー９の裏側に収容することにより、開閉扉１５によるテールランプ等の表示灯１０の視認性やバックアイカメラによる視界への影響が回避される。   By accommodating the opening / closing door 15 on the back side of the cover 9 in the open position in this way, the visibility of the indicator lamp 10 such as the tail lamp by the opening / closing door 15 and the influence on the field of view by the back eye camera are avoided.

一方、開閉扉１５がカバー部材９の裏側に収容された開放状態から塵芥投入口７を閉鎖する閉鎖位置に移動させるには、把手１６に設けられたハンドルの操作により開閉扉１５を閉鎖位置にロック保持していたロック装置のロックを解除し、ガイドレール１１に嵌入するローラ１８及びリンク機構２０によって塵芥投入口７を開放位置に保持された開閉扉１５を把手１６によって下方の閉鎖位置に向かって押し下げる。   On the other hand, in order to move the open / close door 15 from the open state accommodated on the back side of the cover member 9 to the closed position for closing the dust inlet 7, the open / close door 15 is moved to the closed position by operating the handle provided on the handle 16. The lock device that has been locked is unlocked, and the opening and closing door 15 in which the dust inlet 7 is held in the open position by the roller 18 and the link mechanism 20 fitted in the guide rail 11 is moved to the lower closed position by the handle 16. Press down.

開閉扉１５を押し下げると、図９に示すようにローラ１８がガイドレール１１に誘導されて開閉扉１５の下部がガイドレール１１に沿って下降し、かつリンクアームプレート２３とリンクアーム２５が第１回動軸２２を中心に一体的に回動して第３回動軸２６が第１回動軸２２と第３回動軸２６との離間距離を半径とする第２軌道ｒ２を移動して開閉扉１５の上部が第２軌道ｒ２に沿って下降する。   When the door 15 is pushed down, as shown in FIG. 9, the roller 18 is guided to the guide rail 11, the lower part of the door 15 is lowered along the guide rail 11, and the link arm plate 23 and the link arm 25 are the first. The third rotating shaft 26 moves along the second track r2 having the radius of the separation distance between the first rotating shaft 22 and the third rotating shaft 26 by rotating integrally around the rotating shaft 22. The upper part of the opening / closing door 15 descends along the second track r2.

更に、開閉扉１５を押し下げると、回動するリンクアームプレート２３の下面２３ｄがストッパ３５に当接してリンクアームプレート２３の回動が規制される。このリンクアームプレート２３の回動が規制された状態で、更に引き続き開閉扉１５を押し下げると、開放扉１５の押し下げに伴って開閉扉１５の下端がガイドレール１１に嵌入するローラ１８によって規制されてガイドレール１１に沿って下降する一方、リンク機構２０においては、第２回動軸２４を中心に下方に回動するリンクアーム２５の先端２５ｂに設けられた第３回動軸２６、即ち第２回動軸２４と第３回動軸２６との離間距離を半径とするほぼ円弧状に第１軌道ｒ１に沿って開閉扉１５の上部が下降移動し、図３及び図６に示す開閉扉１５が塵芥投入口１７を閉鎖する閉鎖位置まで下降する。   Further, when the open / close door 15 is pushed down, the lower surface 23d of the rotating link arm plate 23 comes into contact with the stopper 35 and the rotation of the link arm plate 23 is restricted. When the opening / closing door 15 is further pushed down in a state where the rotation of the link arm plate 23 is restricted, the lower end of the opening / closing door 15 is restricted by the roller 18 fitted into the guide rail 11 as the opening door 15 is pushed down. While descending along the guide rail 11, in the link mechanism 20, the third rotation shaft 26 provided at the tip 25 b of the link arm 25 that rotates downward about the second rotation shaft 24, that is, the second rotation shaft 26. The upper part of the opening / closing door 15 moves downward along the first track r1 in a substantially circular arc shape with the distance between the rotating shaft 24 and the third rotating shaft 26 as a radius, and the opening / closing door 15 shown in FIGS. Descends to the closed position where the dust inlet 17 is closed.

閉鎖位置においては、開閉扉１５の下部がガイドレール１１に嵌入するローラ１８によって閉鎖位置に保持され、上部がリンク機構２０によって塵芥投入口７を閉鎖する閉鎖位置に保持されると共に、把手１６に設けられたハンドルの操作により開閉扉１５を閉鎖位置にロック保持する。   In the closed position, the lower part of the open / close door 15 is held in the closed position by the roller 18 fitted into the guide rail 11, and the upper part is held in the closed position in which the dust inlet 7 is closed by the link mechanism 20. The opening / closing door 15 is locked and held in the closed position by operating the provided handle.

従って本実施の形態においては、開閉扉１５の下端をガイドレール１１に係合して移動するローラ１８によって塵芥投入口７に沿って移動自在に支持し、開閉扉１５の上部をリンク機構２０によって段階的に連続する複数の円弧状の軌道に沿って順次誘導して塵芥投入口７を閉鎖する閉鎖位置とカバー部材９の裏側に隠蔽される開放位置との間を移動するように構成することによって、開閉扉の上部を各円弧状に沿って誘導するリンク構成部材の短縮化が可能になりリンク機構２０の小型化が可能なる。即ち、開閉扉１５が塵芥投入口７を閉鎖する閉鎖位置からリンクアームプレート２３の第１回動規制部２３ｃとリンクアーム２５の第２回動規制部２５ｃが当接するまでは、開閉扉１５の上部が第２回動軸２４を中心に第２回動軸２４と第３回動軸２６との離間距離を半径とするほぼ円弧状の第１軌道ｒ１に沿って移動し、第１回動規制部２３ｃと第２回動規制部２５ｃが当接してから閉鎖位置までは第１回動軸２２を中心に第１回動軸２２と第３回動軸２６との離間距離を半径とするほぼ円弧状の第２軌道ｒ２に沿って誘導させることから、第１軌道ｒ１を設定する第２回動軸２４と第３回動軸２６との間に配置されるリンクアーム２５が比較的短尺であり、また第２軌道ｒ２を設定する第１回動軸２２と第３回動軸２６との間に配置されるリンクアームプレート２３及びリンクアーム２５が比較的短尺であり、リンク機構２０の作動占有スペースが小さくなり、リンク機構２０を配設する塵芥投入箱５の小型化が可能になる。   Therefore, in the present embodiment, the lower end of the opening / closing door 15 is supported by the roller 18 that engages and moves with the guide rail 11 so as to be movable along the dust inlet 7, and the upper portion of the opening / closing door 15 is supported by the link mechanism 20. It is configured so as to move between a closed position where the dust inlet 7 is closed by sequentially guiding along a plurality of arc-shaped orbits that are successively stepped and an open position hidden behind the cover member 9. As a result, it is possible to shorten the link constituent member that guides the upper part of the open / close door along each arc shape, and to reduce the size of the link mechanism 20. That is, from the closed position where the opening / closing door 15 closes the dust inlet 7 until the first rotation restricting portion 23c of the link arm plate 23 and the second rotation restricting portion 25c of the link arm 25 abut, The upper part moves along a substantially arc-shaped first trajectory r1 whose radius is the distance between the second rotation shaft 24 and the third rotation shaft 26, with the second rotation shaft 24 as a center. From the contact between the restricting portion 23c and the second turning restricting portion 25c to the closed position, the distance between the first turning shaft 22 and the third turning shaft 26 is set as the radius from the first turning shaft 22 to the center. Since the guide is guided along the substantially circular arc-shaped second track r2, the link arm 25 disposed between the second rotating shaft 24 and the third rotating shaft 26 that sets the first track r1 is relatively short. And arranged between the first rotation shaft 22 and the third rotation shaft 26 that set the second track r2. Link arm plates 23 and the link arm 25 is relatively short, the working space occupied by the link mechanism 20 is reduced, it is possible to miniaturize the waste-on box 5 to arrange the linkage mechanism 20.

また、リンク機構２０の小型化に伴って開閉扉１５の閉鎖位置と開放位置とのリンクアーム２５の回動範囲が少なくなり、引張コイルばね３３の撓み量の変化が少なくなり、開閉扉１５に作用する引き上げ力、即ちアシスト力が閉鎖位置から開放位置に亘って安定し、開閉扉１５の開閉操作が容易になる。   Further, as the link mechanism 20 is downsized, the rotation range of the link arm 25 between the closed position and the open position of the open / close door 15 is reduced, and the change in the amount of bending of the tension coil spring 33 is reduced. The pulling force that acts, that is, the assist force is stabilized from the closed position to the open position, and the opening / closing operation of the open / close door 15 becomes easy.

このリンク機構２０は、第１回動軸２２によって塵芥投入箱５側に基端２３ａが回動自在に軸支されたリンクアームプレート２３と、リンクアームプレート２３の先端２３ｂに第２回動軸２４を介在して基端２５ａが回動自在に軸支され先端２５ｂが第３回動軸２６を介在して開閉扉１５に連結されたリンクアーム２５による構成部材が少なく簡単な構成であり信頼性が得られると共に、メンテナンス作業性に優れた塵芥投入箱５のサイドパネル８の外側に配設され、サイドカバー６を開放することによって点検作業や給油等の保全作業が容易で優れたメンテナンスが容易である。   The link mechanism 20 includes a link arm plate 23 whose base end 23a is pivotally supported on the dust container 5 side by a first rotation shaft 22, and a second rotation shaft on a distal end 23b of the link arm plate 23. 24, the base end 25a is pivotably supported, and the distal end 25b is connected to the open / close door 15 via the third rotation shaft 26. Is provided outside the side panel 8 of the dust input box 5 with excellent maintenance workability, and by opening the side cover 6, maintenance work such as inspection work and refueling is easy and excellent maintenance is possible. Easy.

また、リンク機構２０のリンクアーム２５或いはリンクアームプレート２３の形状を変えることによって、第１軌道ｒ１及び第２軌道ｒ２の変更が可能であり種々の開閉扉１５の移動軌道が得られ、リンク機構２０は仕様の異なる種々の塵芥投入箱５に容易に適用することが可能である。   Further, by changing the shape of the link arm 25 or the link arm plate 23 of the link mechanism 20, the first track r1 and the second track r2 can be changed, and various moving tracks of the open / close door 15 can be obtained. No. 20 can be easily applied to various dust input boxes 5 having different specifications.

ここで、仮に開閉扉１５の上部が誘導される第１軌道ｒ１及び第２軌道ｒ２に沿った開閉扉１５の軌道を塵芥投入箱５と開閉扉１５とを回動可能に連結する単一のリンクアームによって構成すると、図１１に仮想線で示すように第１軌道ｒ１及び第２軌道ｒ２に添った円弧状の開閉扉１５の移動軌道の半径の有効長を有する長尺のリンクアーム１２０が必要になり、リンク機構が大型化してリンク機構を収容する塵芥投入箱の大型化が余儀なくされる。   Here, if the upper and lower doors 15 are guided to the upper and lower doors 15 along the first and second tracks r1 and r2, the dust box 5 and the open / close door 15 are rotatably connected to a single track. When constituted by a link arm, a long link arm 120 having an effective length of the radius of the moving track of the arc-shaped opening / closing door 15 along the first track r1 and the second track r2 as shown by phantom lines in FIG. As a result, the size of the link mechanism is increased, and the size of the dust box for accommodating the link mechanism is inevitably increased.

塵芥収集車の概要を示す側面図である。It is a side view which shows the outline | summary of a refuse collection vehicle. 同上、塵芥収集車の後面図である。It is a rear view of a garbage truck. 同上、塵芥投入箱の側面を開閉可能に覆うサイドカバーを省略した塵芥投入箱の側面図である。FIG. 3 is a side view of the dust box, in which a side cover that covers the side surface of the dust box is opened and closed. 同上、要部を示す後面図である。It is a rear view which shows a principal part same as the above. 同上、図４のＩ−Ｉ線断面図である。FIG. 5 is a cross-sectional view taken along the line II of FIG. 同上、開閉扉の開閉動作の概要説明図であり、開閉扉の閉鎖状態を示す。It is an outline explanatory drawing of the opening / closing operation | movement of an opening / closing door same as the above, and shows the closed state of an opening / closing door. 同上、開閉扉の開閉動作の概要説明図であり、開閉扉の開放動作途中の状態を示す。It is an outline explanatory drawing of opening and closing operation of an opening and closing door same as the above, and shows the state in the middle of opening operation of an opening and closing door. 同上、開閉扉の開閉動作の概要説明図であり、開閉扉の開放動作途中の状態を示す。It is an outline explanatory drawing of opening and closing operation of an opening and closing door same as the above, and shows the state in the middle of opening operation of an opening and closing door. 同上、開閉扉の開閉動作の概要説明図であり、開閉扉の開放動作途中の状態を示す。It is an outline explanatory drawing of opening and closing operation of an opening and closing door same as the above, and shows the state in the middle of opening operation of an opening and closing door. 同上、開閉扉の開閉動作の概要説明図であり、開閉扉の開放状態を示す。It is an outline explanatory drawing of the opening / closing operation | movement of an opening / closing door same as the above, and shows the open state of an opening / closing door. 図３に対応する本実施の形態との比較説明図である。It is comparison explanatory drawing with this Embodiment corresponding to FIG. 従来の塵芥投入箱の概要を示す分解斜視図である。It is a disassembled perspective view which shows the outline | summary of the conventional dust input box.

符号の説明Explanation of symbols

１ 塵芥収集車
５ 塵芥投入箱
７ 塵芥投入口
８ サイドパネル
９ カバー部材
１１ ガイドレール
１５ 開閉扉
１８ ローラ（ガイド部材）
２０ リンク機構
２１ ブラケット
２２ 第１回動軸
２３ リンクアームプレート（第１回動アーム）
２３ａ 基端
２３ｂ 先端
２３ｃ 第１回動規制部
２３ｄ 下面（当接部）
２４ 第２回動軸
２５ リンクアーム（第２回動アーム）
２５ａ 基端
２５ｂ 先端
２５ｃ 第２回動規制部
２６ 第３回動軸
２７ ブラケット
３０ 付勢手段
３３ 引張コイルばね（付勢部材）
３５ ストッパ
ｒ１ 第１軌道
ｒ２ 第２軌道 DESCRIPTION OF SYMBOLS 1 Dust collection truck 5 Dust input box 7 Dust input port 8 Side panel 9 Cover member 11 Guide rail 15 Open / close door 18 Roller (guide member)
20 Link mechanism 21 Bracket 22 First rotation shaft 23 Link arm plate (first rotation arm)
23a Base end 23b Front end 23c 1st rotation control part 23d Lower surface (contact part)
24 Second rotation shaft 25 Link arm (second rotation arm)
25a Base end 25b Front end 25c Second rotation restricting portion 26 Third rotation shaft 27 Bracket 30 Energizing means 33 Tension coil spring (urging member)
35 Stopper r1 First track r2 Second track

Claims (5)

塵芥投入箱の後面下部に塵芥投入口が開口すると共に、該塵芥投入口の上方に隣接して後面上部を覆うカバー部材が配設され、上記塵芥投入口を閉鎖する閉鎖位置とカバー部材の裏側に収容されて塵芥投入口を開放する開放位置との間を移動する開閉扉を備えた塵芥収集車の塵芥投入箱において、
上記塵芥投入口の両側に沿って上下方向に延在して設けられた一対のガイドレールと、
上記開閉扉の下端部に設けられて上記各ガイドレールに移動可能に係合する一対のガイド部材と、
塵芥投入箱と開閉扉の上部との間に架設され、上記閉鎖位置と開放位置との間で移動する開閉扉の上部を連続する複数の円弧状の軌道に沿って順次誘導するリンク機構と、
を備えたことを特徴とする塵芥収集車の塵芥投入箱。 A dust inlet is opened at the lower rear part of the dust box, and a cover member is provided adjacent to the upper part of the dust inlet to cover the upper part of the rear surface. In a garbage collection box of a garbage collector equipped with an open / close door that moves between an open position that is housed in and opens a dust collection opening,
A pair of guide rails extending in the vertical direction along both sides of the dust inlet,
A pair of guide members provided at the lower end of the door and movably engaged with the guide rails;
A link mechanism that is installed between the dust input box and the upper part of the open / close door, and sequentially guides the upper part of the open / close door that moves between the closed position and the open position along a plurality of arcuate tracks,
A garbage collection box of a garbage truck characterized by comprising 上記リンク機構は、
基端が上記塵芥投入箱に固定された第１回動軸に回動自在に軸支されて上下方向に回動する第１回動アームと、
基端が該第１回動アームの先端と第２回動軸を介して回動自在に軸支されて上下方向に回動すると共に先端が開閉扉の上部と第３回動軸を介して回動自在に連結された第２回動アームとを備え、
上記閉鎖位置と開放位置との間で移動する開閉扉の上部を該移動に伴って第２回動軸を中心に回動する第２回動アームによって円弧状の第１軌道に沿って誘導し、かつ上記第１回動アームと第２回動アームが接触して第１回動アームと第２回動アームとの相対回動が規制された状態で第１回動軸を中心に一体的に回動する第１回動アームと第２回動アームによって円弧状の第２軌道に沿って誘導することを特徴とする請求項１の塵芥収集車の塵芥投入箱。 The link mechanism is
A first rotating arm whose base end is rotatably supported by a first rotating shaft fixed to the dust box, and rotates in the vertical direction;
The base end is pivotally supported via the tip end of the first turning arm and the second turning shaft so as to turn up and down, and the tip end is arranged above the opening / closing door and the third turning shaft. A second pivoting arm that is pivotably coupled,
The upper part of the open / close door that moves between the closed position and the open position is guided along the arc-shaped first track by the second rotating arm that rotates about the second rotating shaft in accordance with the movement. In addition, the first rotation arm and the second rotation arm are in contact with each other, and the relative rotation between the first rotation arm and the second rotation arm is restricted. 2. The garbage collection box of the refuse collection vehicle according to claim 1, wherein the first collection arm and the second rotation arm that are pivoted to guide the guide along the second arcuate track. 上記リンク機構は、
基端が上記塵芥投入箱に固定された第１回動軸に回動自在に軸支されて上下方向に回動する第１回動アームと、
基端が該第１回動アームの先端と第２回動軸を介して回動自在に軸支されて上下方向に回動すると共に先端が開閉扉の上部と第３回動軸を介して回動自在に連結された第２回動アームとを備え、
上記閉鎖位置から開放位置へ移動する開閉扉の上部を該移動に伴って第２回動軸を中心に上方に回動する第２回動アームによって円弧状の第１軌道に沿って誘導し、該誘導に連続して上記第１回動アームと第２回動アームが接触して該第１回動アームと第２回動アームとの相対回動が規制された状態で第１回動軸を中心に一体的に上方に回動する第１回動アームと第２回動アームによって円弧状の第２軌道に沿って誘導することを特徴とする請求項１の塵芥収集車の塵芥投入箱。 The link mechanism is
A first rotating arm whose base end is rotatably supported by a first rotating shaft fixed to the dust box, and rotates in the vertical direction;
The base end is pivotally supported via the tip end of the first turning arm and the second turning shaft so as to turn up and down, and the tip end is arranged above the opening / closing door and the third turning shaft. A second pivoting arm that is pivotably coupled,
The upper part of the open / close door that moves from the closed position to the open position is guided along the arc-shaped first track by the second turning arm that turns upward about the second turning axis along with the movement, The first rotation shaft is in a state where the first rotation arm and the second rotation arm are in contact with the guidance and the relative rotation between the first rotation arm and the second rotation arm is restricted. 2. A dust collection box for a refuse collection vehicle according to claim 1, wherein the dust collection vehicle is guided along an arcuate second track by a first pivot arm and a second pivot arm that pivot integrally upward about . 上記第２回動アームを上方に回動付勢する付勢手段を備えたことを特徴とする請求項２または３に記載の塵芥収集車の塵芥投入箱。   4. A dust input box for a dust collection vehicle according to claim 2 or 3, further comprising biasing means for biasing the second pivot arm upward. 上記リンク機構は塵芥投入箱のサイドパネルの外面に設けられたことを特徴とする請求項１〜４のいずれか１項に記載の塵芥収集車の塵芥投入箱。   The dust input box for a dust collector according to any one of claims 1 to 4, wherein the link mechanism is provided on an outer surface of a side panel of the dust input box.
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012158404A (en) * 2011-01-31 2012-08-23 Fuji Heavy Ind Ltd Refuse throw-in box of refuse collection vehicle
JP2013170074A (en) * 2012-02-22 2013-09-02 Shinmaywa Industries Ltd Garbage throw-in box and garbage collection vehicle
JP2016183027A (en) * 2015-03-26 2016-10-20 新明和工業株式会社 Garbage collector
JP2017048048A (en) * 2015-09-04 2017-03-09 新明和工業株式会社 Refuse collecting vehicle
CN107380851A (en) * 2017-08-09 2017-11-24 重庆耐德新明和工业有限公司 A kind of compression type garbage truck automatic rear door mechanism
CN113003060A (en) * 2021-02-24 2021-06-22 吴冬平 Compression type garbage truck rear door opening and closing device
US11466496B2 (en) * 2020-02-07 2022-10-11 Hyundai Motor Company Device for opening and closing charging door

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005314061A (en) * 2004-04-28 2005-11-10 Fuji Heavy Ind Ltd Refuse throw-in box of refuse collection vehicle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005314061A (en) * 2004-04-28 2005-11-10 Fuji Heavy Ind Ltd Refuse throw-in box of refuse collection vehicle

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012158404A (en) * 2011-01-31 2012-08-23 Fuji Heavy Ind Ltd Refuse throw-in box of refuse collection vehicle
JP2013170074A (en) * 2012-02-22 2013-09-02 Shinmaywa Industries Ltd Garbage throw-in box and garbage collection vehicle
JP2016183027A (en) * 2015-03-26 2016-10-20 新明和工業株式会社 Garbage collector
JP2017048048A (en) * 2015-09-04 2017-03-09 新明和工業株式会社 Refuse collecting vehicle
CN107380851A (en) * 2017-08-09 2017-11-24 重庆耐德新明和工业有限公司 A kind of compression type garbage truck automatic rear door mechanism
US11466496B2 (en) * 2020-02-07 2022-10-11 Hyundai Motor Company Device for opening and closing charging door
CN113003060A (en) * 2021-02-24 2021-06-22 吴冬平 Compression type garbage truck rear door opening and closing device

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