JP5424101B2 - Vehicle carrier structure - Google Patents

Vehicle carrier structure Download PDF

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JP5424101B2
JP5424101B2 JP2009167652A JP2009167652A JP5424101B2 JP 5424101 B2 JP5424101 B2 JP 5424101B2 JP 2009167652 A JP2009167652 A JP 2009167652A JP 2009167652 A JP2009167652 A JP 2009167652A JP 5424101 B2 JP5424101 B2 JP 5424101B2
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plate
tailgate
movement
groove
side panels
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JP2011020574A (en
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拓 本田
亮 福田
秀生 中村
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Isuzu Motors Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/80Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/82Elements for improving aerodynamics

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Description

本発明は、ピックアップトラックなど上方が開放された荷台を有する車両の荷台構造に関する。   The present invention relates to a loading platform structure for a vehicle having a loading platform with an open top such as a pickup truck.

特開2009−35057号公報には、貨物自動車の無蓋荷台構造が記載されている。貨物自動車の無蓋荷台構造は、荷台床面の前後左右を側板で囲って上方を開放させた無蓋荷台の荷台床面に、無蓋荷台の内部を車両前後方向に仕切る変向板を設ける。変向板は、無蓋荷台の前後方向略中央部に設置され、荷台床面に対する傾斜角度が45°〜135°の範囲に設定される。   Japanese Unexamined Patent Application Publication No. 2009-35057 describes a lidless carrier structure for a truck. The uncovered load carrier structure of a truck is provided with a direction change plate that divides the inside of the uncovered load carrier in the vehicle front-rear direction on the load carrier floor surface of the uncovered load carrier that is open on the front, left, and right sides of the load carrier floor. The deflecting plate is installed at a substantially center portion in the front-rear direction of the lidless loading platform, and the inclination angle with respect to the loading platform floor is set in a range of 45 ° to 135 °.

上記貨物自動車の無蓋荷台構造では、変向板を設けることによって、変向板が無い場合と比べて、後方引張力及び揚力が小さくなる。   In the uncovered cargo bed structure of the above-mentioned truck, by providing the direction change plate, the rear tensile force and the lift force are reduced as compared with the case without the direction change plate.

特開2009−35057号公報JP 2009-35057 A

上記特開2009−35057号公報の貨物自動車の無蓋荷台構造は、変向板を荷台床面の単一の箇所に配置する。このため、車速など走行状態が異なる車両やキャブの形状など外形が異なる車両に適用する場合、空気の流れが異なるため、荷台床面の他の場所へ配置する場合よりも空気抵抗を増大させてしまうおそれがある。   In the lidless carrier structure of a cargo vehicle disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 2009-35057, the turning plate is arranged at a single location on the cargo bed floor. For this reason, when applied to vehicles with different running conditions such as vehicle speed and vehicles with different outer shapes such as the shape of the cab, the air flow is different, so the air resistance is increased compared to the case where it is placed elsewhere on the cargo bed floor. There is a risk that.

本発明は、上記実情に鑑みてなされたものであり、車両の走行状態や車体形状などに応じて、空気抵抗を効果的に軽減させることができることが可能な車両荷台構造の提供を目的とする。   The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle bed structure capable of effectively reducing air resistance in accordance with the running state of the vehicle, the vehicle body shape, and the like. .

上記目的を達成すべく、本発明の車両荷台構造は、左右のサイドパネルとテールゲートとを有し上方が開放される荷台と、左右一対の第1の溝部と、左右一対の第2の溝部と、整流板と、を備える。   In order to achieve the above object, a vehicle bed structure according to the present invention includes a bed having left and right side panels and a tailgate, the upper side being opened, a pair of left and right first grooves, and a pair of left and right second grooves. And a current plate.

サイドパネルは、キャブの後方の車幅方向両側部で相対向して前後方向に沿って起立する。テールゲートは、左右のサイドパネルの後端間を閉止する閉止位置で車幅方向に沿って起立する。左右一対の第1の溝部は、左右のサイドパネルの車幅方向内側に設けられ、相対向して上下方向へ延びる。左右一対の第2の溝部は、左右のサイドパネルの車幅方向内側で第1の溝部よりも後方に設けられ、相対向して上下方向へ延びる。整流板は、第1及び第2の溝部の一方へ選択的に挿入可能であり、閉止位置のテールゲートと対向して左右のサイドパネル間に起立する。   The side panels stand up along the front-rear direction opposite to each other at both sides in the vehicle width direction behind the cab. The tailgate stands along the vehicle width direction at a closing position where the rear ends of the left and right side panels are closed. The pair of left and right first groove portions are provided on the inner side in the vehicle width direction of the left and right side panels, and extend in the vertical direction opposite to each other. The pair of left and right second groove portions are provided behind the first groove portions on the inner side in the vehicle width direction of the left and right side panels, and extend in the vertical direction so as to face each other. The current plate can be selectively inserted into one of the first and second grooves, and stands between the left and right side panels so as to face the tailgate in the closed position.

上記構成では、第1又は第2の溝部に整流板を挿入することにより、整流板が荷台の前後方向中間で車幅方向に沿って起立して閉止位置のテールゲートと対向する。このため、車両の走行中において、キャブの上方を通過して荷台へ流下し、閉止位置のテールゲートに衝突し、逆流して荷台内を前方へ流れる走行風は、整流板に衝突して整流板よりも前方へ流れない。従って、整流板が設けられていない場合と比較して空気抵抗を低減させることができる。   In the above configuration, by inserting the current plate into the first or second groove portion, the current plate rises along the vehicle width direction in the middle of the front and rear direction of the loading platform and faces the tail gate at the closed position. For this reason, while the vehicle is traveling, the traveling wind that passes over the cab, flows down to the loading platform, collides with the tailgate at the closed position, and flows backward in the loading platform by colliding with the rectifying plate is rectified. It does not flow forward from the board. Therefore, the air resistance can be reduced as compared with the case where the current plate is not provided.

また、前後方向に位置の異なる第1の溝部と第2の溝部とを有するため、例えば、高速道路の走行時と一般道の走行時などのように車両の走行条件が異なることに起因して、キャブの上方から荷台へ流下する走行風の状態が異なる場合に、第1及び第2の溝部のうち、空気抵抗の低減効果が高い方を選択して整流板を挿入することができる。また、キャブの形状など車両の外形が異なることに起因して、キャブの上方から荷台の上方へ流下する走行風の状態が異なる場合も、第1及び第2の溝部のうち、空気抵抗の低減効果が高い方を選択して整流板を挿入することができるため、車両の外形が異なる車両間であっても上記車両荷台構造を共通して使用することができる。   In addition, since the first groove portion and the second groove portion having different positions in the front-rear direction are included, the vehicle traveling conditions are different, for example, when traveling on a highway and traveling on a general road. When the state of the traveling wind flowing down from above the cab to the loading platform is different, the rectifying plate can be inserted by selecting one of the first and second groove portions that has a higher air resistance reduction effect. Further, even when the state of the traveling wind flowing down from the upper side of the cab to the upper side of the loading platform due to the difference in the outer shape of the vehicle such as the shape of the cab, the air resistance of the first and second groove portions is reduced. Since the rectifying plate can be inserted by selecting the one having the higher effect, the vehicle carrier structure can be used in common even between vehicles having different vehicle outer shapes.

また、整流板により荷台が前後方向に分割されて区画されるため、荷台に積荷があるときに、積荷の移動を抑制することができる。   In addition, since the loading platform is divided in the front-rear direction by the baffle plate, the movement of the loading can be suppressed when the loading platform is loaded.

また、車両荷台構造は、移動規制手段と連動手段とをさらに備えてもよい。移動規制手段は、第1又は第2の溝部に挿入された整流板の移動を規制する規制位置と整流板の移動を許容する許容位置とに移動可能である。連動手段は、移動規制手段とテールゲートとを連結する。テールゲートは、左右のサイドパネルの後端間を開放する開放位置と閉止位置とに設定自在である。連動手段は、テールゲートの開放位置から閉止位置への移動に連動して、移動規制手段を許容位置から規制位置へ移動する。   Further, the vehicle bed structure may further include a movement restricting means and an interlocking means. The movement restricting means is movable to a restricting position for restricting movement of the rectifying plate inserted in the first or second groove and an allowable position for allowing movement of the rectifying plate. The interlocking means connects the movement restricting means and the tailgate. The tailgate can be set to an open position and a closed position that open between the rear ends of the left and right side panels. The interlocking means moves the movement restricting means from the allowable position to the restricting position in conjunction with the movement of the tailgate from the open position to the close position.

上記構成では、移動規制手段が規制位置に設定されているときに、整流板の移動が規制されるため、走行中の整流板のばたつきの発生を抑制することができる。   In the above configuration, since the movement of the rectifying plate is restricted when the movement restricting means is set at the restricting position, occurrence of flapping of the rectifying plate during traveling can be suppressed.

また、テールゲートの開放位置から閉止位置への移動に連動して、移動規制手段が許容位置から規制位置へ移動するため、整流板の移動を規制するための特別な操作部を必要としない。   Further, since the movement restricting means moves from the allowable position to the restricting position in conjunction with the movement of the tailgate from the open position to the close position, no special operation part for restricting the movement of the current plate is required.

また、テールゲートが開放位置に設定されたときに、移動規制手段が許容位置に移動して、整流板を挿入する溝部の変更が可能となる。従って、例えば、停車中に荷台への荷物の積み降ろしのために、テールゲートを開放位置に設定する作業者は、テールゲートを開放位置に設定した際に整流板を挿入する溝部の変更を行うことができる。   Further, when the tailgate is set to the open position, the movement restricting means moves to the allowable position, and the groove portion into which the current plate is inserted can be changed. Therefore, for example, an operator who sets the tailgate to the open position for loading and unloading cargo on the loading platform while the vehicle is stopped changes the groove portion into which the current plate is inserted when the tailgate is set to the open position. be able to.

また、テールゲートを開放位置に設定した後の走行開始時には、通常、積荷の有無にかかわらず作業者によってテールゲートが閉止位置に設定されるため、整流板が固定された状態となり、走行中の整流板のばたつきの発生を確実に抑制することができる。   Also, at the start of travel after setting the tailgate to the open position, the tailgate is normally set to the closed position by the operator regardless of whether there is a load, so the rectifying plate is fixed and The occurrence of fluttering of the current plate can be reliably suppressed.

また、左右一対の第1の溝部を、左右のサイドパネルのうち、前後方向中央部よりも後方に設けてもよい。   Moreover, you may provide a left-right pair 1st groove part behind the front-back direction center part among the left and right side panels.

上記構成では、荷台の前後方向のうちテールゲートに近い側に配置された第1及び第2の溝部から整流板を挿入する場所を選択することができるため、走行中にテールゲートに衝突して前方へ流れた空気を効果的に阻止する位置に整流板を起立させることができる。   In the above configuration, since the place where the current plate is inserted can be selected from the first and second groove portions arranged on the side closer to the tail gate in the front-rear direction of the loading platform, The current plate can be erected at a position that effectively blocks the air that has flowed forward.

なお、溝部を設ける数は第1の溝部及び第2の溝部の二対の溝部に限定されるものではなく、第1の溝部と第2の溝部とを含む三対以上の溝部を設けてもよい。   The number of groove portions is not limited to two pairs of groove portions, the first groove portion and the second groove portion, and three or more pairs of groove portions including the first groove portion and the second groove portion may be provided. Good.

また、各溝部は、左右のサイドパネルに直接形成してもよく、溝部を有する別部材を左右のサイドパネルに取り付けてもよい。   Moreover, each groove part may be directly formed in a left and right side panel, and another member which has a groove part may be attached to a left and right side panel.

本発明によれば、車両の走行状態や車体形状などに応じて、空気抵抗を効果的に軽減させることができる。   According to the present invention, air resistance can be effectively reduced according to the running state of the vehicle, the shape of the vehicle body, and the like.

以下、本発明の実施形態を図1〜図11に基づいて説明する。   Hereinafter, embodiments of the present invention will be described with reference to FIGS.

図1は本実施形態に係る車両荷台構造を示す側面図であり、図2は図1の車両荷台構造の平面図であり、図3は図1の車両荷台構造で整流板を挿入する溝部を変更した例を示す側面図であり、図4は図2のIV-IV方向視の車両荷台構造の模式図であり、図5は図4の移動規制部により整流板の移動が許容された状態を示す要部拡大図であり、図6は図4の移動規制部により整流板の移動が規制された状態を示す要部拡大図であり、図7は図1の車両荷台構造の移動規制部の変形例を示す模式図であり、図8は図7の移動規制部により整流板の移動が許容された状態を示す要部拡大図であり、図9は図7の移動規制部により整流板の移動が規制された状態を示す要部拡大図であり、図10は図1の車両荷台構造を流れる走行風の流れを示す側面図であり、図11は本実施形態の車両荷台構造を備えた所定の車両模型の実験における空気抵抗係数の低減量を示すグラフである。また、図12は従来の荷台構造を流れる走行風の流れを示す側面図である。なお、以下、前及び後とは、車両の進行方向の前方及び後方をいう。また、図中、矢印UPは上方向を、矢印OUTは車幅方向外側を、矢印FRは車両前方をそれぞれ示す。   FIG. 1 is a side view showing a vehicle bed structure according to the present embodiment, FIG. 2 is a plan view of the vehicle bed structure of FIG. 1, and FIG. 3 shows a groove portion for inserting a current plate in the vehicle bed structure of FIG. 4 is a side view showing a modified example, FIG. 4 is a schematic view of the vehicle bed structure viewed in the IV-IV direction of FIG. 2, and FIG. 5 is a state in which the movement of the current plate is allowed by the movement restricting portion of FIG. 6 is an enlarged view of a main part showing a state in which the movement of the current plate is restricted by the movement restricting part of FIG. 4, and FIG. 7 is a movement restricting part of the vehicle bed structure of FIG. 8 is a schematic diagram showing a modification of the above, FIG. 8 is an enlarged view of a main part showing a state in which the movement of the rectifying plate is allowed by the movement restricting portion of FIG. 7, and FIG. FIG. 10 is a side view showing a flow of traveling wind flowing through the vehicle bed structure of FIG. 1. There, FIG. 11 is a graph showing the reduction amount of the air resistance coefficient in the experiments given vehicle model having a vehicle cargo bed structure of this embodiment. FIG. 12 is a side view showing the flow of the traveling wind flowing through the conventional cargo bed structure. Hereinafter, front and rear refer to the front and rear in the traveling direction of the vehicle. In the figure, arrow UP indicates the upward direction, arrow OUT indicates the vehicle width direction outside, and arrow FR indicates the vehicle front.

本実施形態に係る車両荷台構造1は、図4に示すように、荷台2と、整流板4と、連動部5と、移動規制部6とを備え、図1に示すように、車両10のキャブ11の後方に設けられる。   As shown in FIG. 4, the vehicle bed structure 1 according to the present embodiment includes a bed 2, a current plate 4, an interlocking unit 5, and a movement restricting unit 6, and as shown in FIG. It is provided behind the cab 11.

図1に示すように、荷台2は、荷台床面21とフロントパネル23と左右のサイドパネル24とテールゲート25とロック部(図示省略)とを有し、キャブ11の後方で後輪12の上方であってキャブ11の高さよりも低い高さで設けられ、上方が開放される。荷台床面21は、キャブ11の後方に配置され、後輪12のホイールハウス部22を有し、ホイールハウス部22を除く面は略平面を有する。ホイールハウス部22は、上方へ突出した湾曲形状を有する。フロントパネル23は、矩形板状であり、キャブ11の後面に対向して車幅方向に沿ってキャブ11の高さよりも低い高さで起立する。左右のサイドパネル24は、キャブ11の後方の車幅方向両側部で相対向して前後方向に沿ってフロントパネル23と略同じ高さで起立する。図2に示すように、左右のサイドパネル24には、車幅方向内側面に、それぞれ複数の溝部3と収納溝部35とが設けられている。図1に示すように、テールゲート25は、板状部26と回転軸27とを有する。板状部26は、左右のサイドパネル24の後端間を閉止する閉止位置(図1に示す)で車幅方向に沿って左右のサイドパネル24と略同じ高さで起立する。回転軸27は、板状部26の下端部近傍の車幅方向両端から車幅方向外側へ同軸で一対突出し、左右のサイドパネル24に設けられた係合孔(図示省略)に係合する。回転軸27は、板状部26を、回転軸27を中心に後方へ倒動させて前記左右のサイドパネル24の後端間を開放する開放位置(図4に二点鎖線で示す)と閉止位置とに設定自在に支持する。ロック部は、係合部と係止部とを有する。係合部は、左右のサイドパネル24の後端部の上端部に設けられる。係止部は、閉止位置の板状部26の後面の車幅方向両端側の左右一対の上端部に設けられる。ロック部は、係合部を係止部に係合させることにより、閉止位置の板状部26を左右のサイドパネル24に対して解除自在に固定する。ロック部により固定された状態で、テールゲート25の板状部26が閉止位置に維持される。ロック部による固定を解除した状態で、テールゲート25の板状部26が開放位置に設定自在となる。   As shown in FIG. 1, the loading platform 2 includes a loading platform floor surface 21, a front panel 23, left and right side panels 24, a tailgate 25, and a lock portion (not shown). The upper part is provided at a height lower than that of the cab 11, and the upper part is opened. The loading platform floor surface 21 is disposed behind the cab 11 and includes the wheel house portion 22 of the rear wheel 12, and the surface excluding the wheel house portion 22 has a substantially flat surface. The wheel house portion 22 has a curved shape protruding upward. The front panel 23 has a rectangular plate shape and stands at a height lower than the height of the cab 11 along the vehicle width direction so as to face the rear surface of the cab 11. The left and right side panels 24 face each other at both sides in the vehicle width direction behind the cab 11 and stand up at substantially the same height as the front panel 23 along the front-rear direction. As shown in FIG. 2, the left and right side panels 24 are provided with a plurality of groove portions 3 and storage groove portions 35 on the inner side surfaces in the vehicle width direction, respectively. As shown in FIG. 1, the tailgate 25 has a plate-like portion 26 and a rotation shaft 27. The plate-like portion 26 stands at substantially the same height as the left and right side panels 24 in the vehicle width direction at a closing position (shown in FIG. 1) where the rear ends of the left and right side panels 24 are closed. The rotary shaft 27 protrudes coaxially from both ends in the vehicle width direction near the lower end of the plate-like portion 26 to the outside in the vehicle width direction, and engages with engagement holes (not shown) provided in the left and right side panels 24. The rotary shaft 27 is closed with an open position (indicated by a two-dot chain line in FIG. 4) where the plate-like portion 26 is tilted backward about the rotary shaft 27 to open between the rear ends of the left and right side panels 24. Supports the position freely. The lock part has an engaging part and a locking part. The engaging portion is provided at the upper end portion of the rear end portion of the left and right side panels 24. The locking portions are provided at a pair of left and right upper ends on both ends in the vehicle width direction on the rear surface of the plate-like portion 26 at the closed position. The locking portion engages the engaging portion with the locking portion to fix the plate-like portion 26 in the closed position to the left and right side panels 24 so as to be releasable. The plate-like portion 26 of the tailgate 25 is maintained in the closed position while being fixed by the lock portion. The plate-like portion 26 of the tailgate 25 can be set to the open position in a state where the fixation by the lock portion is released.

図2に示すように、複数の溝部3は、本発明にかかる一対の第1の溝部と一対の第2の溝部とを含む溝部を構成し、第1溝部31と第2溝部32と第3溝部33と第4溝部34とを含む。第1溝部31は、左右のサイドパネル24の車幅方向内側で荷台2の前後方向中央部よりも前方に一対形成され、それぞれ相対向して上下方向へ延びる。一対の第1溝部31は、荷台2内に、幅がw1であり高さがh1(図1に示す)であり厚さがd1の板状空間を車幅方向に沿って区画する。第2溝部32は、左右のサイドパネル24の車幅方向内側で荷台2の前後方向中央部よりも前方で第1溝部31よりも後方に一対形成され、相対向して上下方向へ延びる。第3溝部33は、左右のサイドパネル24の車幅方向内側で荷台2の前後方向中央部よりも後方に一対形成され、相対向して上下方向へ延びる。第4溝部34は、左右のサイドパネル24の車幅方向内側で荷台1の前後方向中央部よりも後方で第3溝部33よりも後方に一対形成され、相対向して上下方向へ延びる。収納溝部35は、左右のサイドパネル24の車幅方向内側で荷台2の前端部に一対形成され、相対向して上下方向へ延びる。また、第2溝部32と第3溝部33と第4溝部34と収納溝部35は、第1溝部31と略同じ大きさの板状空間を車幅方向に沿って区画する。なお、本実施形態では、複数の溝部3及び収納溝部35は、左右のサイドパネル24に直接形成するが、複数の溝部3及び収納溝部35は、例えば、左右のサイドパネル24に断面略U字状の別部材のレールを取り付けた構成であってもよい。   As shown in FIG. 2, the plurality of groove portions 3 constitutes a groove portion including a pair of first groove portions and a pair of second groove portions according to the present invention, and includes a first groove portion 31, a second groove portion 32, and a third groove portion. A groove 33 and a fourth groove 34 are included. A pair of first groove portions 31 are formed on the inner side in the vehicle width direction of the left and right side panels 24 and in front of the center portion in the front-rear direction of the loading platform 2, and extend in the vertical direction opposite to each other. The pair of first groove portions 31 partitions a plate-like space having a width w1 and a height h1 (shown in FIG. 1) and a thickness d1 in the cargo bed 2 along the vehicle width direction. A pair of second groove portions 32 are formed on the inner side in the vehicle width direction of the left and right side panels 24 in front of the center portion in the front-rear direction of the loading platform 2 and rearward of the first groove portion 31, and extend in the up-down direction opposite to each other. A pair of third groove portions 33 are formed on the inner side in the vehicle width direction of the left and right side panels 24 and behind the center portion in the front-rear direction of the loading platform 2, and extend in the up-down direction so as to face each other. A pair of fourth groove portions 34 are formed on the inner side in the vehicle width direction of the left and right side panels 24 behind the center portion in the front-rear direction of the loading platform 1 and behind the third groove portion 33, and extend in the up-down direction so as to face each other. A pair of storage groove portions 35 are formed at the front end portion of the loading platform 2 on the inner side in the vehicle width direction of the left and right side panels 24 and extend in the vertical direction opposite to each other. Further, the second groove portion 32, the third groove portion 33, the fourth groove portion 34, and the storage groove portion 35 partition a plate-like space having substantially the same size as the first groove portion 31 along the vehicle width direction. In the present embodiment, the plurality of groove portions 3 and the storage groove portions 35 are formed directly on the left and right side panels 24, but the plurality of groove portions 3 and the storage groove portions 35 are substantially U-shaped in cross section on the left and right side panels 24, for example. The structure which attached the rail of another member of a shape may be sufficient.

整流板4は、横幅が、左右のサイドパネル24の間隔よりも長く、且つ複数の溝部3及び収納溝部35がそれぞれ区画する板状空間の幅w1よりも僅かに短い長さを有し、高さが、荷台床面21から左右のサイドパネル24の起立高さと略同じ高さ(=h1)を有し、厚さが、複数の溝部3及び収納溝部35がそれぞれ区画する板状空間の厚さd1よりも僅かに短い厚さを有する矩形板状部材であり、複数の溝部3及び収納溝部のうちいずれか一対に選択的に挿入可能であり、閉止位置のテールゲート25と対向して左右のサイドパネル24間に起立する。図1に、第3溝部33に整流板4を挿入した状態を示し、図3に収納溝部35に整流板4を挿入した状態を示す。   The rectifying plate 4 has a width that is longer than the interval between the left and right side panels 24 and slightly shorter than the width w1 of the plate-like space defined by the plurality of groove portions 3 and the storage groove portions 35. Has a height (= h1) substantially the same as the standing height of the left and right side panels 24 from the cargo bed floor surface 21, and the thickness is the thickness of the plate-like space defined by the plurality of groove portions 3 and the storage groove portions 35, respectively. This is a rectangular plate-like member having a thickness slightly shorter than the length d1, and can be selectively inserted into any one of the plurality of groove portions 3 and the storage groove portions, and is opposed to the tailgate 25 at the closed position. Between the side panels 24. FIG. 1 shows a state where the rectifying plate 4 is inserted into the third groove portion 33, and FIG. 3 shows a state where the rectifying plate 4 is inserted into the storage groove portion 35.

図4に示すように、連動部5は、本発明にかかる連動手段を構成し、荷台床面21の車幅方向両端部に前後方向に沿って形成された溝内に一対配置された金属製のワイヤであり、前後方向に移動自在である。なお、連動部5は、金属製のワイヤに限らないが、金属製のプレートなど伸縮性の少ない部材が好ましい。連動部5は、後端部がテールゲート25の内部を経てテールゲート25の下端部に固定され、左右のサイドパネル24に固定された軸28に当接した状態で、テールゲート25の板状部26が開放位置から閉止位置に移動するときに、板状部26の下端の位置が点Aから点Bへ移動することにより、後方に引っ張られて、後方へ移動する。なお、連動部5の前端をフロントパネル23又は左右のサイドパネル24の前端と弾性部材を介して連結してもよい。かかる構成により、テールゲート25の板状部26が閉止位置から開放位置に移動するときに、連動部5が弾性部材によって前方へ付勢されるとともに、連動部5の弛みが弾性部材によって常に解消される。   As shown in FIG. 4, the interlocking portion 5 constitutes interlocking means according to the present invention, and a pair of metal portions are disposed in grooves formed along the front-rear direction at both ends in the vehicle width direction of the cargo bed floor surface 21. This wire is movable in the front-rear direction. In addition, although the interlocking | linkage part 5 is not restricted to metal wires, a member with little elasticity, such as a metal plate, is preferable. The interlocking portion 5 is fixed to the lower end portion of the tailgate 25 through the inside of the tailgate 25 and is in contact with the shaft 28 fixed to the left and right side panels 24. When the part 26 moves from the open position to the closed position, the lower end position of the plate-like part 26 moves from point A to point B, so that it is pulled rearward and moved rearward. In addition, you may connect the front end of the interlocking | linkage part 5 with the front end of the front panel 23 or the left and right side panels 24 via an elastic member. With this configuration, when the plate-like portion 26 of the tailgate 25 moves from the closed position to the open position, the interlocking portion 5 is biased forward by the elastic member, and the slackness of the interlocking portion 5 is always eliminated by the elastic member. Is done.

図4に示すように、移動規制部6は、本発明にかかる移動規制手段を構成し、連動部5に固定され、複数の溝部3及び収納溝部35の左右それぞれの各下端部近傍に設けられ、連動部5の移動に伴って前後に移動可能である。本実施形態では、移動規制部6は、テールゲート25の板状部26が開放位置のときに複数の溝部3又は収納溝部35の前部に設定され(図5に示す)、起立した状態のままテールゲート25の板状部26の開放位置から閉止位置への移動に連動して前方から後方へ移動する(図6に示す)。かかる移動により、移動規制部6は、テールゲート25の板状部26の開放位置では、複数の溝部3及び収納溝部35内で区画する板状空間の厚さを整流板4の板厚よりも厚い長さに開放する許容位置(図5に示す)に設定され、テールゲート25の板状部26の閉止位置では、複数の溝部3及び収納溝部35内で区画する板状空間の厚さを整流板4の板厚よりも薄い厚さに狭める規制位置(図6に示す)に設定される。従って、移動規制部6が規制位置に設定されているときは、複数の溝部3及び収納溝部35のいずれかに挿入されている整流板4の移動が規制され、移動規制部6が許容位置に設定されているときは、複数の溝部3及び収納溝部35のいずれかに挿入されている整流板4の移動が許容される。なお、連動部5及び移動規制部6は、本実施形態では、左右に配置するが、左右一方のみに配置してもよい。   As shown in FIG. 4, the movement restricting portion 6 constitutes a movement restricting means according to the present invention, is fixed to the interlocking portion 5, and is provided in the vicinity of the respective left and right lower end portions of the plurality of groove portions 3 and the storage groove portions 35. As the interlocking unit 5 moves, it can move back and forth. In the present embodiment, the movement restricting portion 6 is set at the front portion of the plurality of groove portions 3 or the storage groove portions 35 (shown in FIG. 5) when the plate-like portion 26 of the tailgate 25 is in the open position (shown in FIG. 5). The plate-like portion 26 of the tailgate 25 is moved from the front to the rear in conjunction with the movement from the open position to the closed position (shown in FIG. 6). As a result of this movement, the movement restricting portion 6 makes the thickness of the plate-like space defined in the plurality of groove portions 3 and the storage groove portions 35 larger than the plate thickness of the rectifying plate 4 at the open position of the plate-like portion 26 of the tailgate 25. It is set to an allowable position (shown in FIG. 5) that opens to a thick length, and at the closed position of the plate-like portion 26 of the tailgate 25, the thickness of the plate-like space partitioned in the plurality of groove portions 3 and the storage groove portions 35 is set. The restricting position (shown in FIG. 6) is set to be narrowed to a thickness thinner than the thickness of the current plate 4. Therefore, when the movement restricting portion 6 is set to the restricting position, the movement of the rectifying plate 4 inserted into any of the plurality of groove portions 3 and the storage groove portion 35 is restricted, and the movement restricting portion 6 is set to the allowable position. When set, movement of the rectifying plate 4 inserted into any of the plurality of groove portions 3 and the storage groove portion 35 is allowed. In addition, in this embodiment, although the interlocking | linkage part 5 and the movement control part 6 are arrange | positioned at right and left, you may arrange | position only at right and left.

図11に示す本実施形態の車両荷台構造を備えた縮尺車両模型の風洞実験では、整流板の設置位置を荷台の前端を0、荷台の後端を1とした場合に、整流板を設置しない場合と比較して、荷台の前後方向中央部よりも後方である設置位置0.5(荷台の前端から後端へ1/2の位置)、設置位置0.75(荷台の前端から後端へ3/4の位置)の場合に空気抵抗が効果的に低減した。   In a wind tunnel test of a scaled vehicle model having the vehicle bed structure of the present embodiment shown in FIG. 11, when the position of the current plate is 0 at the front end of the load bed and 1 at the rear end of the load bed, the current plate is not installed. Compared to the case, the installation position 0.5 (1/2 position from the front end to the rear end of the loading platform) and the installation position 0.75 (from the front end to the rear end of the loading platform) which are behind the center in the longitudinal direction of the loading platform In the case of 3/4 position), the air resistance was effectively reduced.

また、図7〜図9に移動規制部6の変形例を示す。図7に示すように、移動規制部61は、回転軸62とストッパー63とを有する。回転軸62は、左右のサイドパネル24から車幅方向内側に突設され、左右のサイドパネル24に対して複数の溝部3及び収納溝部35の左右それぞれの各下端部近傍で回転自在に支持される。ストッパー63は、下端が連動部5に固定され、中間部が回転軸62に固定される。この変形例では、ストッパー63はテールゲート25が開放位置のときに複数の溝部3又は収納溝部35の後部に設定され(図8に示す)、テールゲート25の板状部26の開放位置から閉止位置への移動に連動して下端部が前方から後方へ移動する(図9に示す)。また、ストッパー63の中間部が回転軸62を介して左右のサイドパネル24に固定されているため、ストッパー63の上端部は、テールゲート25の板状部26の開放位置から閉止位置への移動に連動して後方から前方へ回転移動する。これにより、ストッパー63は、テールゲート25の板状部26の開放位置では、上端部が複数の溝部3又は収納溝部35の後部に位置し、複数の溝部3及び収納溝部35内で区画する板状空間の厚さを整流板4の板厚よりも厚い長さに開放する許容位置に設定され(図8に示す)、テールゲート25の板状部26の閉止位置では、上端部が複数の溝部3又は収納溝部35の後部から前方へ移動し、複数の溝部3及び収納溝部35内で区画する板状空間の厚さを整流板4の板厚よりも薄い厚さに狭める規制位置に設定される(図9に示す)。従って、移動規制部61が規制位置に設定されているときは、複数の溝部3及び収納溝部35のいずれかに挿入されている整流板4の移動が規制され、移動規制部61が許容位置に設定されているときは、複数の溝部3及び収納溝部35のいずれかに挿入されている整流板4の移動が許容される。   Moreover, the modification of the movement control part 6 is shown in FIGS. As shown in FIG. 7, the movement restricting portion 61 has a rotating shaft 62 and a stopper 63. The rotating shaft 62 protrudes inward in the vehicle width direction from the left and right side panels 24 and is supported so as to be rotatable in the vicinity of the respective left and right lower ends of the plurality of groove portions 3 and the storage groove portions 35 with respect to the left and right side panels 24. The The stopper 63 has a lower end fixed to the interlocking portion 5 and an intermediate portion fixed to the rotating shaft 62. In this modification, the stopper 63 is set at the rear of the plurality of grooves 3 or the storage grooves 35 (shown in FIG. 8) when the tailgate 25 is in the open position, and is closed from the open position of the plate-like portion 26 of the tailgate 25. In conjunction with the movement to the position, the lower end moves from the front to the rear (shown in FIG. 9). Further, since the intermediate portion of the stopper 63 is fixed to the left and right side panels 24 via the rotation shaft 62, the upper end portion of the stopper 63 moves from the open position of the plate-like portion 26 of the tailgate 25 to the closed position. In conjunction with, it rotates from the rear to the front. As a result, the stopper 63 is a plate that has an upper end located at the rear of the plurality of grooves 3 or the storage grooves 35 in the open position of the plate-like portion 26 of the tailgate 25 and is partitioned within the plurality of grooves 3 and the storage grooves 35. The thickness of the shaped space is set to an allowable position that opens to a length larger than the thickness of the rectifying plate 4 (shown in FIG. 8). It moves to the front from the rear part of the groove part 3 or the storage groove part 35, and the thickness of the plate-like space defined in the plurality of groove parts 3 and the storage groove part 35 is set to a restriction position where the thickness is narrower than the plate thickness of the current plate 4 (Shown in FIG. 9). Therefore, when the movement restricting portion 61 is set to the restricting position, the movement of the rectifying plate 4 inserted into any of the plurality of groove portions 3 and the storage groove portion 35 is restricted, and the movement restricting portion 61 is set to the allowable position. When set, movement of the rectifying plate 4 inserted into any of the plurality of groove portions 3 and the storage groove portion 35 is allowed.

以上説明したように、本実施形態では、第1溝部31、第2溝部32、第3溝部33及び第4溝部34のいずれか一対に整流板4を挿入することにより、整流板4が荷台2の前後方向中間で車幅方向に沿って起立して閉止位置のテールゲート25と対向する。このため、図10に示すように、車両10の走行中において、キャブ11の上方を通過して荷台2へ流下し、閉止位置のテールゲート25に衝突し、逆流して荷台2内を前方へ流れる走行風は、整流板4に衝突して整流板4よりも前方へ流れない。従って、整流板4が設けられていない場合(図12に示す)と比較して空気抵抗係数を低減させるとともに揚力係数を低減させることができる。   As described above, in the present embodiment, the rectifying plate 4 is inserted into any one of the first groove portion 31, the second groove portion 32, the third groove portion 33, and the fourth groove portion 34, so that the rectifying plate 4 becomes the loading platform 2. It stands up along the vehicle width direction at the middle in the front-rear direction and faces the tailgate 25 in the closed position. For this reason, as shown in FIG. 10, while the vehicle 10 is traveling, it passes over the cab 11 and flows down to the loading platform 2, collides with the tailgate 25 at the closed position, and flows backward to move forward in the loading platform 2. The flowing traveling wind collides with the current plate 4 and does not flow forward from the current plate 4. Therefore, the air resistance coefficient can be reduced and the lift coefficient can be reduced as compared with the case where the rectifying plate 4 is not provided (shown in FIG. 12).

また、前後方向に位置の異なる第1溝部31、第2溝部32、第3溝部33及び第4溝部34を有するため、例えば、高速道路での走行時と一般道の走行時などのように、車両10の走行条件が異なることに起因して、キャブ11の上方から荷台2の上方へ流下する走行風の状態が異なる場合に、第1溝部31、第2溝部32、第3溝部33及び第4溝部34のうち、空気抵抗の低減効果が高い方を選択して整流板4を挿入することができる。また、キャブ11の形状など車両10の外形が異なることに起因して、キャブ11の上方から荷台の上方へ流下する走行風の状態が異なる場合も、第1溝部31、第2溝部32、第3溝部33及び第4溝部34のうち、空気抵抗の低減効果が高い方を選択して整流板4を挿入することができるため、車両10の外形が異なる車両間であっても上記車両荷台1構造を共通して使用することができる。   Moreover, since it has the 1st groove part 31, the 2nd groove part 32, the 3rd groove part 33, and the 4th groove part 34 from which a position differs in the direction of order, for example, when driving on a highway and driving on a general road, When the traveling wind flowing down from the upper side of the cab 11 to the upper side of the loading platform 2 is different due to the different traveling conditions of the vehicle 10, the first groove portion 31, the second groove portion 32, the third groove portion 33, and the Of the four groove portions 34, the one having the higher air resistance reduction effect can be selected and the rectifying plate 4 can be inserted. In addition, even when the traveling wind flowing down from the upper side of the cab 11 to the upper side of the loading platform due to the difference in the outer shape of the vehicle 10 such as the shape of the cab 11, the first groove portion 31, the second groove portion 32, the second Since the rectifying plate 4 can be inserted by selecting one of the third groove portion 33 and the fourth groove portion 34 which has a higher effect of reducing air resistance, the vehicle bed 1 can be used even between vehicles having different outer shapes. The structure can be used in common.

また、第1溝部31、第2溝部32、第3溝部33及び第4溝部34のうち一対に整流板4を挿入することにより、荷台2が前後方向に分割されて区画されるため、荷台2に積荷があるときに、積荷の移動を抑制することができる。   Moreover, since the loading platform 2 is divided | segmented into the front-back direction by inserting the baffle plate 4 in a pair among the 1st groove part 31, the 2nd groove part 32, the 3rd groove part 33, and the 4th groove part 34, the loading platform 2 When there is a load, the movement of the load can be suppressed.

また、荷台2に荷物を多く積むときには、荷台2の前端部に設けた収納溝部35に整流板4を挿入して整流板4と積荷との干渉を防ぐことが可能である。   Further, when a large amount of luggage is loaded on the loading platform 2, it is possible to prevent the interference between the flow regulating plate 4 and the load by inserting the flow regulating plate 4 into the storage groove portion 35 provided at the front end of the loading platform 2.

また、移動規制部6が規制位置に設定されているときに、整流板4の移動が規制されるため、走行中の整流板4のばたつきの発生を抑制することができる。   Moreover, since the movement of the rectifying plate 4 is restricted when the movement restricting portion 6 is set to the restricting position, occurrence of flapping of the rectifying plate 4 during traveling can be suppressed.

また、テールゲート25の開放位置から閉止位置への移動に連動して、移動規制部6が許容位置から規制位置へ移動するため、整流板4の移動を規制するための特別な操作部を必要としない。   Further, in conjunction with the movement of the tailgate 25 from the open position to the closed position, the movement restricting portion 6 moves from the allowable position to the restricting position, so a special operation portion for restricting the movement of the rectifying plate 4 is required. And not.

また、テールゲート25が開放位置に設定されたときに、移動規制部6が許容位置に移動して、複数の溝部3又は収納溝部35のうち整流板4を挿入する溝部を変更することが可能となる。従って、例えば、停車中に荷台2への荷物の積み降ろしのために、テールゲート25を開放位置に設定する作業者は、テールゲート25を開放位置に設定した際に整流板4を挿入する溝部の変更を行うことができる。   Further, when the tailgate 25 is set to the open position, the movement restricting portion 6 moves to the allowable position, and the groove portion into which the rectifying plate 4 is inserted among the plurality of groove portions 3 or the storage groove portions 35 can be changed. It becomes. Accordingly, for example, an operator who sets the tailgate 25 to the open position for loading and unloading the load onto the loading platform 2 while the vehicle is stopped, inserts the current plate 4 when the tailgate 25 is set to the open position. Changes can be made.

また、テールゲート25を開放位置に設定した後の走行開始時には、通常、積荷の有無にかかわらず作業者によってテールゲート25が閉止位置に設定されるため、整流板4が固定された状態となり、走行中の整流板4のばたつきの発生を確実に抑制することができる。   Further, at the start of traveling after setting the tailgate 25 to the open position, the tailgate 25 is normally set to the closed position by the operator regardless of whether there is a load, so that the current plate 4 is fixed, The occurrence of flapping of the rectifying plate 4 during traveling can be reliably suppressed.

また、規制位置と許容位置に移動可能な移動規制部6を設けるため、整流板4の大きさを、複数の溝部3及び収納溝部35がそれぞれ区画する板状空間よりも小さく構成しても、走行中のばたつきが抑制される。また、このように複数の溝部3及び収納溝部35がそれぞれ区画する板状空間よりも整流板4を小さく構成することにより、整流板4を複数の溝部3又は収納溝部35へ挿入をし易くすることができる。   In addition, since the movement restricting portion 6 that can move to the restricting position and the allowable position is provided, the size of the rectifying plate 4 is configured to be smaller than the plate-like space defined by the plurality of groove portions 3 and the storage groove portions 35, respectively. Flapping while driving is suppressed. Further, the current plate 4 is configured to be smaller than the plate-like space in which the plurality of groove portions 3 and the storage groove portions 35 are partitioned as described above, so that the current plate 4 can be easily inserted into the plurality of groove portions 3 or the storage groove portions 35. be able to.

また、複数の溝部3のうち、一対の第3溝部33と一対の第4溝部34とは荷台2のうち前後方向中央部よりも後方に設けられる。このため、荷台2の前後方向のうちテールゲート25に近い側に配置された第3溝部33又は第4溝部34から整流板4を挿入する場所を選択することができるため、走行中にテールゲート25に衝突して前方へ流れた空気を効果的に阻止する位置に整流板4を起立させることができる。   Further, among the plurality of groove portions 3, the pair of third groove portions 33 and the pair of fourth groove portions 34 are provided behind the center portion in the front-rear direction of the loading platform 2. For this reason, since the place which inserts the baffle plate 4 from the 3rd groove part 33 or the 4th groove part 34 arrange | positioned in the front-back direction of the loading platform 2 at the side close | similar to the tail gate 25 can be selected, The rectifying plate 4 can be erected at a position that effectively blocks the air that has collided with the airflow 25 and has flowed forward.

また、本実施形態では、複数の溝部3を四対設けたが、五対以上の溝部を設け、整流板4を挿入する溝の選択肢を増やしてもよい。   In the present embodiment, four pairs of the plurality of groove portions 3 are provided. However, five or more pairs of groove portions may be provided, and options for grooves into which the rectifying plates 4 are inserted may be increased.

以上、本発明者によってなされた発明を適用した実施形態について説明したが、この実施形態による本発明の開示の一部をなす論述及び図面により本発明は限定されることはない。すなわち、この実施形態に基づいて当業者等によりなされる他の実施形態、実施例及び運用技術等は全て本発明の範疇に含まれることは勿論であることを付け加えておく。   As mentioned above, although the embodiment to which the invention made by the present inventor is applied has been described, the present invention is not limited by the discussion and the drawings that form part of the disclosure of the present invention according to this embodiment. That is, it should be added that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

本実施形態に係る車両荷台構造を示す側面図である。It is a side view which shows the vehicle bed structure concerning this embodiment. 車両荷台構造の平面図である。It is a top view of a vehicle carrier structure. 図1の車両荷台構造で整流板を挿入する溝部を変更した例を示す側面図である。It is a side view which shows the example which changed the groove part which inserts a baffle plate in the vehicle bed structure of FIG. 図2のIV-IV方向視の車両荷台構造の模式図である。FIG. 4 is a schematic diagram of a vehicle bed structure as viewed in the IV-IV direction of FIG. 2. 図4の移動規制部により整流板の移動が許容された状態を示す要部拡大図である。It is a principal part enlarged view which shows the state in which the movement of the baffle plate was permitted by the movement control part of FIG. 図4の移動規制部により整流板の移動が規制された状態を示す要部拡大図である。It is a principal part enlarged view which shows the state by which the movement of the baffle plate was controlled by the movement control part of FIG. 図1の車両荷台構造の移動規制部の変形例を示す模式図である。It is a schematic diagram which shows the modification of the movement control part of the vehicle bed structure of FIG. 図7の移動規制部により整流板の移動が許容された状態を示す要部拡大図である。It is a principal part enlarged view which shows the state in which the movement of the baffle plate was accept | permitted by the movement control part of FIG. 図7の移動規制部により整流板の移動が規制された状態を示す要部拡大図である。It is a principal part enlarged view which shows the state by which the movement of the baffle plate was controlled by the movement control part of FIG. 図1の車両荷台構造を流れる走行風の流れを示す側面図である。It is a side view which shows the flow of the driving | running | working wind which flows through the vehicle bed structure of FIG. 本実施形態の車両荷台構造を備えた所定の車両模型の実験における空気抵抗係数の低減量を示すグラフである。It is a graph which shows the reduction amount of the air resistance coefficient in the experiment of the predetermined vehicle model provided with the vehicle bed structure of this embodiment. 従来の荷台構造を流れる走行風の流れを示す側面図である。It is a side view which shows the flow of the driving | running | working wind which flows through the conventional loading platform structure.

1:車両荷台構造
2:荷台
3:複数の溝部(第1の溝部、第2の溝部)
4:整流板
5:連動部(連動手段)
6:移動規制部(移動規制手段)
24:左右のサイドパネル
25:テールゲート
1: Vehicle loading platform structure 2: Loading platform 3: Multiple grooves (first groove, second groove)
4: Current plate 5: Interlocking part (interlocking means)
6: Movement restriction part (movement restriction means)
24: Left and right side panels 25: Tailgate

Claims (1)

キャブの後方の車幅方向両側部で相対向して前後方向に沿って起立する左右のサイドパネルと、前記左右のサイドパネルの後端間を閉止する閉止位置で車幅方向に沿って起立するテールゲートと、を有し、上方が開放される荷台と、
前記左右のサイドパネルの車幅方向内側に設けられ、相対向して上下方向へ延びる左右一対の第1の溝部と、
前記左右のサイドパネルの車幅方向内側で前記第1の溝部よりも後方に設けられ、相対向して上下方向へ延びる左右一対の第2の溝部と、
前記第1及び第2の溝部の一方へ選択的に挿入可能であり、前記閉止位置の前記テールゲートと対向して前記左右のサイドパネル間に起立する整流板と、
前記第1又は第2の溝部に挿入された前記整流板の移動を規制する規制位置と当該整流板の移動を許容する許容位置とに移動可能な移動規制手段と、
前記移動規制手段と前記テールゲートとを連結する連動手段と、を備え
前記テールゲートは、前記左右のサイドパネルの後端間を開放する開放位置と前記閉止
位置とに設定自在であり、
前記連動手段は、前記テールゲートの前記開放位置から前記閉止位置への移動に連動し
て、前記移動規制手段を前記許容位置から前記規制位置へ移動する
ことを特徴とする車両荷台構造。
Left and right side panels that stand opposite to each other on both sides in the vehicle width direction behind the cab and stand in the vehicle width direction at a closed position that closes the rear ends of the left and right side panels. A loading platform that has a tailgate and is opened upward;
A pair of left and right first grooves provided on the inner side in the vehicle width direction of the left and right side panels and extending in the vertical direction opposite to each other;
A pair of left and right second groove portions that are provided behind the first groove portion on the inner side in the vehicle width direction of the left and right side panels, and extend in the up-down direction opposite to each other;
A rectifying plate that can be selectively inserted into one of the first and second groove portions and stands between the left and right side panels facing the tailgate in the closed position;
A movement restricting means movable to a restricting position for restricting movement of the rectifying plate inserted in the first or second groove and an allowable position for allowing movement of the rectifying plate;
Interlocking means for connecting the movement restricting means and the tailgate ,
The tailgate has an open position that opens between rear ends of the left and right side panels and the closed position.
It can be set to position and
The interlocking means is interlocked with the movement of the tailgate from the open position to the closed position.
The movement restricting means is moved from the allowable position to the restricting position .
JP2009167652A 2009-07-16 2009-07-16 Vehicle carrier structure Expired - Fee Related JP5424101B2 (en)

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