JP2015140170A - Coupling structure of traction rear car to traction vehicle - Google Patents

Coupling structure of traction rear car to traction vehicle Download PDF

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JP2015140170A
JP2015140170A JP2014016089A JP2014016089A JP2015140170A JP 2015140170 A JP2015140170 A JP 2015140170A JP 2014016089 A JP2014016089 A JP 2014016089A JP 2014016089 A JP2014016089 A JP 2014016089A JP 2015140170 A JP2015140170 A JP 2015140170A
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car
platform
coupling
pin
loading
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JP6227430B2 (en
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内山 隆
Takashi Uchiyama
隆 内山
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株式会社内山商会
Uchiyama Shokai:Kk
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Abstract

PROBLEM TO BE SOLVED: To provide a coupling structure of a traction rear car to a traction vehicle which can simply and certainly couple to a platform of the traction vehicle, can load cargo also on the platform to raise cargo loading efficiency, can be miniaturized as a rear car itself, and is easy to use and keep at a place of a small parking space.SOLUTION: Provided are a coupling platform which is arranged under a horizontal state between a platform of a traction vehicle and a rear car body and includes a flat loading surface at the upper surface thereof, and a platform coupling member which is fitted to the platform of the traction vehicle. A free joint which is provided at the front end part of the coupling platform and is pivotal by a predetermined angle in the horizontal and vertical directions is coupled as pivotal to the platform coupling member, and a rear car coupling member provided at the rear end part of the coupling platform is coupled to the car body front end part of the rear car body. The platform coupling member includes an upper fitting plate, a lower fitting plate and a coupling pin, the free joint is fitted as pivotal to the upper fitting plate by fitting of the coupling pin, and the coupling state is released by drawing the coupling pin.

Description

本発明は、本来人力で牽引するように構成されたリヤカーを、自転車や自動二輪車等の牽引車でも牽引できるようにするための牽引リヤカーの牽引車への連結構造に関する。   The present invention relates to a structure for connecting a towing vehicle to a towing vehicle so that a rear car that is originally configured to be towed by a manpower can be towed by a towing vehicle such as a bicycle or a motorcycle.
従来、この種の連結構造は、例えば特許文献1に開示されている。この連結構造は、リヤカー牽引用の本体フレームの先端中央に、ボールジョイント構造の牽引ジョイントを連結し、この牽引ジョイントに牽引金具の基端部を連結すると共に、牽引金具の先端部に自転車のシートポストを挟む締付握持部を設けるようにしたものである。   Conventionally, this type of connection structure is disclosed in Patent Document 1, for example. In this connection structure, a traction joint of a ball joint structure is connected to the center of the front end of the main body frame for towing a rear car, and the base end portion of the traction bracket is connected to the traction joint, and the bicycle seat is connected to the distal end portion of the traction bracket. A fastening gripping part for sandwiching the post is provided.
特開2010−228665号公報JP 2010-228665 A
しかしながら、このような連結構造にあっては、牽引金具の先端部を自転車のシートポストに連結する構造であるため、牽引ジョイントや牽引金具が、自転車の荷台上方に位置して水平方向等に回動可能に配設されていることから、例えば金属棒を格子状に連結した荷台を有する自転車の場合には、荷台を取り外す必要がある等、リヤカーと牽引車を連結するための構造が複雑化すると共にその作業が面倒になり易い。   However, in such a connection structure, since the tip of the traction bracket is connected to the bicycle seat post, the traction joint and the traction bracket are positioned above the bicycle loading platform and rotated in a horizontal direction or the like. Since it is arranged to be movable, for example, in the case of a bicycle having a loading platform in which metal bars are connected in a lattice shape, the structure for connecting the rear car and the towing vehicle is complicated, such as the need to remove the loading platform. In addition, the work tends to be troublesome.
また、自転車に荷台が装備されている場合に、荷台を有効利用できず、牽引リヤカー自体への荷物の積載効率が劣ると共に、積載できる荷物の量を多くしたい場合に、リヤカーの積載面を大きくする必要があり、結果として、牽引リヤカー自体が大型化して、例えば都会等の駐車スペースの小さい場所での使用や保管(駐車)が困難となる。   In addition, when the bicycle is equipped with a loading platform, the loading platform cannot be used effectively, the loading efficiency of the luggage on the towed rear car itself is inferior, and when the amount of luggage that can be loaded is increased, the loading surface of the rear car is increased. As a result, the towed rear car itself increases in size, making it difficult to use and store (park) it in a small parking space such as a city.
本発明は、このような事情に鑑みてなされたもので、その目的は、牽引車の荷台に簡単かつ確実に連結し得ると共に、牽引車の荷台上方にも荷物を積載することができて荷物の積載効率を高め、かつリヤカー自体の小型化が可能で駐車スペースの小さい場所での使用や保管が容易な牽引リヤカーの牽引車への連結構造を提供することにある。   The present invention has been made in view of such circumstances, and an object of the present invention is to be able to easily and surely connect to a loading platform of a towing vehicle, and to load a luggage on the loading platform of the towing vehicle. It is an object of the present invention to provide a structure for connecting a towed rear car to a towed vehicle that can improve the loading efficiency of the vehicle and can be miniaturized and can be easily used and stored in a small parking space.
かかる目的を達成すべく、本発明のうち請求項1に記載の発明は、荷物を積載可能な車体及び該車体の左右外側に回転自在に配設された車輪を有するリヤカー本体を、牽引車の荷台部分に連結する牽引リヤカーの牽引車への連結構造であって、前記牽引車の荷台と前記リヤカー本体の車体前端部との間に水平状態で配設され上面に平坦な積載面を有する連結荷台と、前記牽引車の荷台に取り付けられる荷台連結部材とを備え、前記連結荷台の前端部に設けた水平方向及び垂直方向に所定角度回動自在な自在継ぎ手を前記荷台連結部材に回動自在に連結すると共に、前記連結荷台の後端部に設けたリヤカー連結部材を前記リヤカー本体の車体前端部に連結することを特徴とする。   In order to achieve such an object, the invention according to claim 1 of the present invention provides a rear car body having a vehicle body on which a load can be loaded and a wheel rotatably disposed on the left and right outside of the vehicle body. A structure for connecting a towing vehicle to a towing vehicle that is connected to a loading platform portion, wherein the towing vehicle is disposed in a horizontal state between a loading platform of the towing vehicle and a vehicle body front end portion of the rear car body, and has a flat loading surface on an upper surface. A loading platform and a loading platform connecting member attached to the loading platform of the towing vehicle, and a universal joint provided at a front end portion of the coupling loading platform capable of rotating at a predetermined angle in a horizontal direction and a vertical direction is freely rotatable to the loading platform coupling member. And a rear car connecting member provided at a rear end portion of the connecting cargo bed is connected to a vehicle body front end portion of the rear car body.
また、請求項2に記載の発明は、前記荷台連結部材が、前記牽引車の荷台に固定可能な上取付板と下取付板及び連結ピンを有し、前記上取付板に設けた継ぎ手係合部への連結ピンの装着により前記自在継ぎ手が上取付板に回動可能に連結されると共に、前記継ぎ手係合部から連結ピンを引き抜くことによりその連結状態が解除されることを特徴とする。このとき、前記連結ピンは、請求項3に記載の発明のように、その操作部の操作で前記上取付板と自在継ぎ手を係止状態もしくは非係止状態に設定可能なピンを有することが好ましい。   According to a second aspect of the present invention, the cargo bed coupling member includes an upper mounting plate, a lower mounting plate, and a coupling pin that can be fixed to the loading platform of the towing vehicle, and the joint engagement provided on the upper mounting plate. The universal joint is rotatably connected to the upper mounting plate by mounting the connection pin to the portion, and the connection state is released by pulling the connection pin from the joint engaging portion. At this time, the connecting pin may have a pin capable of setting the upper mounting plate and the universal joint to the locked state or the non-locked state by operating the operation portion, as in the invention according to claim 3. preferable.
さらに、請求項4に記載の発明は、前記連結荷台が、その積載面の後端部に下方に延設された前記リヤカー連結部材を有し、該リヤカー連結部材の下端が前記リヤカー本体の車体前端部に着脱可能に連結されると共に、該リヤカー連結部材が前記積載面に対して折り畳み可能に配設されていることを特徴とする。   Furthermore, in the invention according to claim 4, the connecting cargo bed has the rear car connecting member extended downward at a rear end portion of the loading surface, and a lower end of the rear car connecting member is a vehicle body of the rear car body. The rear car connecting member is detachably connected to the front end portion, and is arranged to be foldable with respect to the stacking surface.
本発明のうち請求項1に記載の発明によれば、連結荷台の前端部に設けた水平方向及び垂直方向に所定角度回動自在な自在継ぎ手を荷台連結部材に回動自在に連結すると共に、連結荷台の後端部に設けたリヤカー連結部材をリヤカー本体の車体前端部に連結するため、牽引車の荷台を利用して連結荷台と牽引車とを簡単かつ確実に連結できると共に、牽引車の荷台上方の連結荷台にも荷物を積載することで荷物の積載効率を高めることができ、かつ、リヤカー自体の小型化が可能で駐車スペースの小さい場所での使用や保管(駐車)を容易に行うことができる。   According to the invention described in claim 1 of the present invention, the universal joint provided at the front end portion of the coupled cargo bed and pivotable by a predetermined angle in the horizontal direction and the vertical direction is pivotally coupled to the cargo bed coupling member, Since the rear car connecting member provided at the rear end of the connecting platform is connected to the front end of the rear car body, the connecting platform and the towing vehicle can be easily and reliably connected to each other using the towing vehicle platform. Loading luggage on the connected loading platform above the loading platform can improve loading efficiency, and the rear car itself can be downsized and easily used and stored (parked) in a small parking space. be able to.
また、請求項2に記載の発明によれば、請求項1に記載の発明の効果に加え、荷台連結部材の上取付板に設けた継ぎ手係合部への連結ピンの装着により自在継ぎ手が上取付板に回動可能に連結されると共に、継ぎ手係合部から連結ピンを引き抜くことによりその連結状態が解除されるため、連結ピンの脱着操作で連結荷台と荷台連結部材を連結したりその連結解除を行うことができ、これらの連結作業や牽引リヤカーの保管作業を一層容易に行うことができる。   According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the universal joint is raised by mounting the connecting pin to the joint engaging portion provided on the upper mounting plate of the load carrier connecting member. It is connected to the mounting plate so that it can rotate, and the connection state is released by pulling out the connection pin from the joint engaging part. Therefore, the connection platform and the carrier connection member can be connected by connecting / disconnecting the connection pin. The release operation can be performed, and the connecting operation and the storage operation of the towing rear car can be more easily performed.
また、請求項3に記載の発明によれば、請求項2に記載の発明の効果に加え、連結ピンがその操作部の操作で上取付板と自在継ぎ手を係止状態もしくは非係止状態に設定可能なピンを有するため、操作部の例えば押圧操作という簡単な操作で、連結ピンによる係止やその解除を行うことができて、連結作業や牽引リヤカーの保管作業をより一層容易に行うことができる。   According to the invention described in claim 3, in addition to the effect of the invention described in claim 2, the connecting pin brings the upper mounting plate and the universal joint into the locked state or the non-locked state by operating the operation portion. Because it has a settable pin, it can be locked and released by the connecting pin by a simple operation such as a pressing operation of the operating part, and the connecting work and the storage work of the towing rear car can be performed more easily. Can do.
さらに、請求項4に記載の発明によれば、請求項1ないし3に記載の発明の効果に加え、連結荷台のリヤカー連結部材の下端がリヤカー本体の車体前端部に着脱可能に連結されると共に、このリヤカー連結部材が積載面に対して折り畳み可能に配設されているため、連結荷台自体をリヤカー本体から取り出して折り畳むことができて、その保管スペースを小さくして牽引リヤカーを一層容易に保管することができる。   Further, according to the invention described in claim 4, in addition to the effects of the invention described in claims 1 to 3, the lower end of the rear car connecting member of the connecting cargo bed is detachably connected to the vehicle body front end of the rear car body. Since the rear car connecting member is arranged to be foldable with respect to the loading surface, the connecting cargo bed itself can be taken out from the rear car body and folded, so that the storage space can be reduced and the towing rear car can be stored more easily. can do.
本発明に係わる連結構造を採用した牽引リヤカーの一実施形態を示す斜視図The perspective view which shows one Embodiment of the towing rear car which employ | adopted the connection structure concerning this invention. 同その連結荷台の平面図The top view of the connected cargo bed 同その側面図The side view 同背面図Rear view 同図2のA部の(a)拡大図、(b)が(a)のB−B線矢視図FIG. 2A is an enlarged view of part A, and FIG. 2B is a view taken along line BB in FIG. 同連結荷台を牽引車に連結するための荷台連結部材の設置状態の斜視図The perspective view of the installation state of the carrier connection member for connecting the connection carrier to the towing vehicle 同荷台連結部材の平面図Top view of the same carrier connection member 同その側面図The side view 同連結ピンの正面図Front view of the connecting pin 同荷台連結部材を使用した連結状態を示す断面図Sectional drawing which shows the connection state using the same carrier connection member 本発明に係わる連結構造の変形例を示す斜視図The perspective view which shows the modification of the connection structure concerning this invention
以下、本発明を実施するための形態を図面に基づいて詳細に説明する。
図1〜図10は、本発明に係わる連結構造を採用した牽引リヤカーの一実施形態を示している。図1に示すように、牽引リヤカー1は、リヤカー本体2と、このリヤカー本体2の車体2aの前端部に連結された連結荷台3を備えている。前記リヤカー本体2の車体2aには、底板と左右の側板及び背面板等により前端が開放され、この各板及び該板を支えるパイプ状のフレームにより、各板の内側にリヤカー本体2の積載面2bが形成されると共に、車体2aの底板の前端部両側には、立設状態でパイプ状のフレーム2c等が設けられている。
DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
FIGS. 1-10 has shown one Embodiment of the towing rear car which employ | adopted the connection structure concerning this invention. As shown in FIG. 1, the towing rear car 1 includes a rear car main body 2 and a connecting cargo bed 3 connected to a front end portion of a vehicle body 2 a of the rear car main body 2. The vehicle body 2a of the rear car body 2 has a front end opened by a bottom plate, left and right side plates, a back plate, and the like. 2b is formed, and on both sides of the front end portion of the bottom plate of the vehicle body 2a, pipe-like frames 2c and the like are provided in an upright state.
また、前記フレーム2cの高さ方向の上部には、平板状(もしくは格子状等)の棚板2dが着脱可能に配設されると共に、車体2aの前後方向の中間位置でその車体2aの両外側には、車輪2eが回転自在にそれぞれ配設されている。このリヤカー本体2は、底板と背面板が中央で二分割され、前記各フレームのうち背面板を支持するフレームの一端を外したり回転させることにより、折り畳み可能に形成されている。   A flat plate (or grid-like) shelf plate 2d is detachably disposed on the upper portion of the frame 2c in the height direction, and both the vehicle bodies 2a are arranged at intermediate positions in the front-rear direction of the vehicle body 2a. The wheels 2e are rotatably disposed on the outside. The rear car body 2 has a bottom plate and a back plate that are divided into two at the center, and can be folded by removing or rotating one end of a frame that supports the back plate of each frame.
そして、このリヤカー本体2は、前記積載面2b上に荷物が積載可能に形成されると共に、前記棚板2d上にも荷物が積載可能に形成されている。なお、前記2枚の底板の各前端部には、後述する連結荷台3のフック部材14が係止される逆U字形状の棒状の係止金具2fがそれぞれ固定され、また、前記フレーム2cの高さ方向の所定位置には、前方に向けて締付ネジ4aを有する支持ブロック4がそれぞれ溶接固定されている。   The rear car body 2 is formed so that a load can be loaded on the loading surface 2b, and the load can be loaded on the shelf 2d. In addition, to each front end portion of the two bottom plates, an inverted U-shaped bar-shaped locking metal fitting 2f for locking a hook member 14 of a connecting cargo bed 3 described later is fixed, respectively, and the frame 2c Support blocks 4 each having a fastening screw 4a are welded and fixed at predetermined positions in the height direction.
前記連結荷台3は、図1〜図4に示すように、水平な荷台部3aと、この荷台部3aの後端部に下方に垂直状態で立設されたリヤカー連結部材としての支柱部3bを有している。前記荷台部3aは、格子状に溶接固定された例えば5本の角パイプと、左右の角パイプの側面に溶接固定された平面視コ字状の2本の丸パイプを有し、これら各パイプの上面は面一に設定されている。また、前後の角パイプ及び左右の丸パイプの上面には所定高さの柵5が垂直状態で溶接固定されている。これにより、各パイプの上面で柵5の内側に平坦な積載面6が形成されている。このとき、前記荷台部3aの前端側の両側には、前記丸パイプの長さを、その両端部が溶接固定される角パイプの長さより短く設定することで幅狭部7がそれぞれ形成されている。   As shown in FIGS. 1 to 4, the connecting cargo bed 3 includes a horizontal cargo bed portion 3 a and a column portion 3 b as a rear car connecting member erected in a vertically downward state at a rear end portion of the cargo bed portion 3 a. Have. The loading platform 3a has, for example, five square pipes welded and fixed in a lattice shape, and two round pipes having a U-shape in plan view welded and fixed to the side surfaces of the left and right square pipes. The upper surface of is set to be flush. In addition, a fence 5 having a predetermined height is welded and fixed in a vertical state to the upper surfaces of the front and rear square pipes and the left and right round pipes. Thereby, the flat loading surface 6 is formed inside the fence 5 on the upper surface of each pipe. At this time, narrow portions 7 are formed on both sides of the front end side of the loading platform portion 3a by setting the length of the round pipe shorter than the length of the square pipe to which both ends thereof are fixed by welding. Yes.
また、前記荷台部3aの前方の角パイプには、自在継ぎ手8が配設されている。この自在継ぎ手8は、図5に示すように、後端部にネジ部8aを有すると共に、前端側に設けた内面が球面の孔8bに、外周面が球面で形成された継ぎ手本体8cが水平方向と垂直方向に所定角度回転自在に収納されている。また、継ぎ手本体8cには、その中心位置に上下方向に貫通した貫通孔8dが形成されている。   A universal joint 8 is disposed on the square pipe in front of the loading platform 3a. As shown in FIG. 5, the universal joint 8 has a threaded portion 8a at the rear end, and a joint body 8c having an inner surface formed in a spherical hole 8b and a peripheral surface formed in a spherical shape on the front end side. It is stored so as to be rotatable by a predetermined angle in the direction perpendicular to the direction. The joint body 8c is formed with a through hole 8d penetrating in the vertical direction at the center position.
そして、この自在継ぎ手8のネジ部8aを、図1〜図3に示す前記角パイプの長手方向の中間位置下面に、前方に突出する状態で固定された継ぎ手支持パイプ9のネジ孔9a(図3及び図10参照)にねじ込み、ナット18(図10参照)で固定することで、自在継ぎ手8が荷台部3aの前端側に配設されている。なお、荷台部3aの角パイプの下面側(もしくは側面側)の所定位置には、積載面6上に積載される荷物の落下防止用バンドを係止させるバンド係止部10が複数個設けられている。   The threaded portion 8a of the universal joint 8 is fixed to the lower surface of the intermediate position in the longitudinal direction of the square pipe shown in FIGS. 3 and FIG. 10), and the universal joint 8 is disposed on the front end side of the cargo bed portion 3a by fixing with a nut 18 (see FIG. 10). A plurality of band locking portions 10 are provided at predetermined positions on the lower surface side (or side surface side) of the square pipe of the cargo bed portion 3a to lock the fall prevention band of the load loaded on the loading surface 6. ing.
前記支柱部3bは、角パイプからなる左右一対の垂直支柱11と、この垂直支柱11の上下端部等を連結する水平支柱12を有している。そして、垂直支柱11は、その上端が前記荷台部3aの角パイプの後端部下面に、図3に示すヒンジ13により図の矢印イの如く回動可能に連結されると共に、その下端部には前記フック部材14がそれぞれ配設されている。   The column part 3b has a pair of left and right vertical columns 11 made of square pipes and a horizontal column 12 that connects the upper and lower ends of the vertical column 11 and the like. The upper end of the vertical column 11 is connected to the lower surface of the rear end portion of the square pipe of the cargo bed portion 3a so as to be rotatable by the hinge 13 shown in FIG. The hook members 14 are respectively disposed.
また、前記各垂直支柱11の所定位置には、ヒンジ固定ブロック15が溶接固定され、この各ヒンジ固定ブロック15と、前記荷台部3aの角パイプのヒンジ固定部との間には、軸16aを中心に回動可能なヒンジ16がそれぞれ配設されている。すなわち、図3に示すように、ヒンジ16の一方のヒンジ部材16bの端部が荷台部3aの角パイプに回動自在に支持され、他方のヒンジ部材16cの端部がヒンジ固定ブロック15に回転自在に支持されている。このとき、ヒンジ部材16b、16cは、操作レバー16dの操作により、その係止状態が解除されることで軸16aを中心に回動すなわち図3の矢印ロ方向(もしくは、矢印反ロ方向)に屈曲可能に構成されて、支柱部3bが荷台部3a(積載面6)に対して矢印イの如く折り畳み可能となっている。   A hinge fixing block 15 is fixed by welding at a predetermined position of each vertical column 11, and a shaft 16a is provided between each hinge fixing block 15 and the hinge fixing portion of the square pipe of the loading platform 3a. A hinge 16 that can be rotated is arranged at the center. That is, as shown in FIG. 3, the end of one hinge member 16b of the hinge 16 is rotatably supported by the square pipe of the loading platform 3a, and the end of the other hinge member 16c rotates to the hinge fixing block 15. It is supported freely. At this time, the hinge members 16b and 16c are rotated around the shaft 16a by releasing the locked state by the operation of the operation lever 16d, that is, in the direction indicated by the arrow B in FIG. The column 3b can be folded with respect to the loading platform 3a (loading surface 6) as shown by an arrow A.
また、操作レバー16dを操作しない位置においては、各ヒンジ部材16b、16cが回動することなくその位置が保持されるようになっている。なお、このヒンジ16も手動操作等により折り畳み可能な適宜構成のヒンジを使用することができる。さらに、前記垂直支柱11の上部側面には、図1及び図4に示すように、略L字状の丸パイプからなりリヤカー本体2の前記支持ブロック4の嵌合孔にその先端部が嵌合支持される支持パイプ17の基端部が、支柱部3bの左右側方に突出する状態でそれぞれ溶接固定されている。   Further, at the position where the operation lever 16d is not operated, the position is maintained without the hinge members 16b and 16c rotating. The hinge 16 may be a suitably configured hinge that can be folded by manual operation or the like. Further, as shown in FIGS. 1 and 4, the top end of the vertical column 11 is fitted with a fitting hole of the support block 4 of the rear car body 2, which is a substantially L-shaped round pipe. The base end portion of the support pipe 17 to be supported is welded and fixed in a state of projecting to the left and right sides of the column portion 3b.
このように構成された連結荷台3は、牽引リヤカー1の使用時に、図1に示すように、垂直支柱11下端のフック部材14がリヤカー本体2の係止金具2fにそれぞれ係止されると共に、支持パイプ17の先端部がリヤカー本体2の支持ブロック4の嵌合孔にそれぞれ嵌合固定される。このとき、支持パイプ17は、支持ブロック4の嵌合孔に密に嵌合状態とされると共に、締付ネジ4aの回転操作でその位置が固定される。そして、リヤカー本体2の積載面2b上に積載した荷物の重量や道路事情等により積載面2bの高さ位置が変化し、支持ブロック4の嵌合孔部分に拗れるように力が作用した場合であっても、その嵌合状態すなわち連結荷台3とリヤカー本体2の連結状態が安定して維持されるようになっている。   As shown in FIG. 1, when the towed rear car 1 is used, the coupled cargo bed 3 configured as described above is configured such that the hook member 14 at the lower end of the vertical column 11 is locked to the locking bracket 2 f of the rear car body 2, respectively. The distal end portion of the support pipe 17 is fitted and fixed in the fitting hole of the support block 4 of the rear car body 2. At this time, the support pipe 17 is closely fitted in the fitting hole of the support block 4 and the position thereof is fixed by rotating the tightening screw 4a. Then, when the height position of the loading surface 2b changes due to the weight of the load loaded on the loading surface 2b of the rear car body 2 or road conditions, and a force acts so as to fall into the fitting hole portion of the support block 4 Even so, the fitting state, that is, the connection state of the connection carrier 3 and the rear car body 2 is stably maintained.
次に、連結荷台3と牽引車としての例えば自転車との連結構造を、図6〜図10に基づいて説明する。先ず、連結荷台3を自転車の荷台20に連結するには、図6に示すように、上取付板22と一対の下取付板23及び連結ピン24からなる荷台連結部材21が使用される。この荷台連結部材の21の前記上取付板22は、図7及び図8に示すように、中央部が一段高く形成されると共に、この中央部の前後方向両側に挟持部22aがそれぞれ設けられ、各挟持部22aには2つの固定孔25がそれぞれ形成されている。   Next, the connection structure of the connection carrier 3 and, for example, a bicycle as a towing vehicle will be described with reference to FIGS. First, in order to connect the connection carrier 3 to the bicycle carrier 20, a carrier connection member 21 including an upper attachment plate 22, a pair of lower attachment plates 23 and connection pins 24 is used as shown in FIG. As shown in FIGS. 7 and 8, the upper mounting plate 22 of the load carrier coupling member 21 is formed with a central portion one step higher, and sandwiching portions 22 a are provided on both sides in the front-rear direction of the central portion, respectively. Two fixing holes 25 are formed in each clamping portion 22a.
また、後方側(図7において左側)の挟持部22aには、長手方向の中央部分に連結ピン挿入筒26の下端が立設状態で溶接固定され、この連結ピン挿入筒26には、上部に外径が下部より小さく前記自在継ぎ手8の厚さと同一長さの継ぎ手係合部26aが形成されると共に、中心位置には上下方向に貫通する状態で挿通孔26bが形成されている。   Further, the lower end of the connecting pin insertion cylinder 26 is fixed to the holding portion 22a on the rear side (left side in FIG. 7) with the lower end of the connecting pin insertion cylinder 26 standing upright at the center in the longitudinal direction. A joint engaging portion 26a having an outer diameter smaller than that of the lower portion and having the same length as the thickness of the universal joint 8 is formed, and an insertion hole 26b is formed at the center position so as to penetrate vertically.
この上取付板22の各挟持部22aに対向する前記下取付板23は、上取付板22の固定孔25に対応した位置に同一内径の固定孔27(図8参照)がそれぞれ形成されている。また、各下取付板23は、その前後方向の一方の端部に上取付板22の裏面に当接可能な屈曲部23aがそれぞれ設けられている。なお、上取付板22の中央部の端部には、後述する連結ピン24に接続されたワイヤー28の端部を固定するための固定孔29(図7参照)が形成されている。   The lower mounting plate 23 facing each clamping portion 22a of the upper mounting plate 22 is formed with a fixing hole 27 (see FIG. 8) having the same inner diameter at a position corresponding to the fixing hole 25 of the upper mounting plate 22. . Each of the lower mounting plates 23 is provided with a bent portion 23a that can contact the back surface of the upper mounting plate 22 at one end in the front-rear direction. A fixing hole 29 (see FIG. 7) for fixing the end of the wire 28 connected to the connecting pin 24 described later is formed at the end of the central portion of the upper mounting plate 22.
前記連結ピン24は、図9に示すように、円柱状でその下端部に一対のピン24a1が外周面に対して出没可能に配設された所定長さの係止部24aと、この係止部24aの上部に一体化された操作部24bを有している。操作部24bには、操作ボタン24b1が設けられ、この操作ボタン24b1を図の矢印ハの如く押すことにより、係止部24a下端のピン24a1が図示しないバネの付勢力に抗して外周面から引っ込む(没する)ようになっている。また、操作部24bには、紛失防止用の前記ワイヤー28の一端がリング30を介して連結されている。なお、連結ピン24の係止部24aの長さは、前記連結ピン挿入筒26の挿通孔26bの全長と同一に設定されている。   As shown in FIG. 9, the connecting pin 24 has a columnar shape and a locking portion 24 a having a predetermined length in which a pair of pins 24 a 1 is arranged at the lower end portion so as to be able to protrude and retract with respect to the outer peripheral surface. The operation part 24b integrated in the upper part of the part 24a is provided. The operation portion 24b is provided with an operation button 24b1, and when the operation button 24b1 is pushed as shown by an arrow C in the figure, the pin 24a1 at the lower end of the locking portion 24a resists the biasing force of a spring (not shown) from the outer peripheral surface. It is designed to retract (sink). In addition, one end of the wire 28 for preventing loss is connected to the operation unit 24 b via a ring 30. The length of the locking portion 24a of the connecting pin 24 is set to be the same as the entire length of the insertion hole 26b of the connecting pin insertion tube 26.
このように構成された荷台連結部材21は、図6に示すように、先ず、上取付板22の挟持部22aと各下取付板23との間に自転車の荷台20を構成する金属棒20aを位置させた状態で、挟持部22a及び下取付板23の固定孔25及び27とボルト31及びナット32を利用して、各金属棒20aを各挟持部22aと各下取付板23でそれぞれ挟持する。これにより、荷台連結部材21が自転車の荷台20に固定される。そして、この固定された荷台連結部材21の連結ピン挿入筒26の継ぎ手係合部26aに、前記連結荷台3の自在継ぎ手8の貫通孔8dを上方から嵌合する。   As shown in FIG. 6, the cargo bed connecting member 21 configured in this manner is provided with a metal rod 20 a that constitutes the bicycle cargo bed 20 between the holding portion 22 a of the upper mounting plate 22 and each lower mounting plate 23. In this state, the metal rods 20a are clamped by the clamping portions 22a and the lower mounting plates 23 using the fixing holes 25 and 27 of the clamping portions 22a and the lower mounting plate 23, the bolts 31 and the nuts 32, respectively. . Thereby, the loading platform connecting member 21 is fixed to the loading platform 20 of the bicycle. Then, the through hole 8d of the universal joint 8 of the connection platform 3 is fitted from above into the joint engagement portion 26a of the connection pin insertion tube 26 of the fixed platform connection member 21.
この状態で、連結ピン24の操作部24bの操作ボタン24b1を矢印ハ方向に押しながら、その係止部24aを連結ピン挿入筒26の貫通孔26bに上方から挿通する。連結ピン24が所定位置(ピン24a1が上取付板22の裏面となる位置)まで押し込まれて、操作ボタン24b1の押圧操作を解除すると、ピン24a1がバネの付勢力で初期位置である外周面から所定寸法突出した位置に戻り、この突出したピン24a1が上取付板22の裏面に係止される。   In this state, while pressing the operation button 24b1 of the operation portion 24b of the connection pin 24 in the direction of the arrow C, the locking portion 24a is inserted from above into the through hole 26b of the connection pin insertion tube 26. When the connecting pin 24 is pushed to a predetermined position (a position where the pin 24a1 becomes the back surface of the upper mounting plate 22) and the pressing operation of the operation button 24b1 is released, the pin 24a1 is moved from the outer peripheral surface which is the initial position by the biasing force of the spring. Returning to a position protruding by a predetermined dimension, the protruding pin 24 a 1 is locked to the back surface of the upper mounting plate 22.
これにより、図10の実線で示すように、自在継ぎ手8が上取付板22の連結ピン挿入筒26の継ぎ手係合部26aに係止された状態となり、このとき、自在継ぎ手8が水平方向及び垂直方向に所定角度回転自在であることから、連結荷台3が自転車の荷台20に荷台連結部材21を介して所定角度回転自在、すなわち水平方向及び垂直方向に所定角度回転自在に連結されることになる。   As a result, as shown by the solid line in FIG. 10, the universal joint 8 is locked to the joint engaging portion 26a of the connecting pin insertion tube 26 of the upper mounting plate 22. At this time, the universal joint 8 is moved in the horizontal direction and Since it is rotatable by a predetermined angle in the vertical direction, the connecting platform 3 is connected to the bicycle loading platform 20 via a loading platform connecting member 21 by a predetermined angle, that is, to be connected to the horizontal direction and the vertical direction by a predetermined angle. Become.
つまり、前記牽引リヤカー1の場合、係止金具2f及び支持ブロック4を利用して、リヤカー本体2の車体2a前端部に、連結荷台3の支柱部3bのフック部材14及び支持パイプ17を連結すると共に、この連結荷台3の荷台部3aの自在継ぎ手8を、スタンドで固定されている自転車の荷台20の荷台連結部材21の継ぎ手係合部26aに回転自在に嵌合させ連結ピン24で連結する。これにより、リヤカー本体2が自転車に連結される。この状態で、リヤカー本体2の積載面2b(底板)上に、例えば配達すべき食品が収容された保冷ボックス等を積載すると共に、連結荷台3の積載面6上にも保冷ボックスを積載し、かつリヤカー本体2の棚板2d上に配達時に使用する肩掛けボックス等を積載して、配達員が自転車を配達場所に向けて走行させる。   That is, in the case of the towed rear car 1, the hook member 14 and the support pipe 17 of the support column 3 b of the connecting cargo bed 3 are connected to the front end of the vehicle body 2 a of the rear car body 2 by using the locking metal fitting 2 f and the support block 4. At the same time, the universal joint 8 of the loading platform 3a of the coupled loading platform 3 is rotatably fitted to the coupling engaging portion 26a of the loading platform coupling member 21 of the loading platform 20 of the bicycle fixed by the stand and coupled by the coupling pin 24. . As a result, the rear car body 2 is connected to the bicycle. In this state, on the stacking surface 2b (bottom plate) of the rear car body 2, for example, a cool box containing food to be delivered is loaded, and a cool box is also mounted on the stack surface 6 of the coupled cargo bed 3, In addition, a shoulder box or the like used for delivery is loaded on the shelf 2d of the rear car body 2, and the delivery person runs the bicycle toward the delivery place.
このとき、リヤカー本体2の積載面2bや棚板2d上あるいは連結荷台3の積載面6上に荷物を積載すると、その重量でリヤカー本体2の重量が重くなり、荷物を積載していない場合に比較してリヤカー本体2の高さ位置が低く沈んだ状態となるが、この高さ位置は連結荷台3と自転車の荷台20との連結部分に設けた垂直方向に所定角度回動自在な自在継ぎ手8により吸収される。その結果、荷物の重量による連結荷台3の高さ方向の位置変化は勿論のこと、道路の凹凸による連結荷台3の高さ方向の位置変化も、自在継ぎ手8で良好に吸収されることなる。   At this time, if a load is loaded on the loading surface 2b or shelf plate 2d of the rear car body 2 or the loading surface 6 of the coupled loading platform 3, the weight of the rear car body 2 is increased by that weight, and the load is not loaded. In comparison, the height position of the rear car body 2 is lowered, and this height position is a universal joint which is provided at a connecting portion between the connecting cargo bed 3 and the bicycle cargo bed 20 and is rotatable by a predetermined angle in the vertical direction. 8 is absorbed. As a result, the position change in the height direction of the coupled loading platform 3 due to the unevenness of the road as well as the position variation in the height direction of the coupled loading platform 3 due to the weight of the load is well absorbed by the universal joint 8.
また、配達員が自転車の向きを略90度程度変えて走行しようとした場合も、自在継ぎ手8が水平方向に所定角度回転自在であると共に、連結荷台3の積載面6の左右前端側に幅狭部7が設けられていることから、この幅狭部7内に配達員の身体が位置する状態となって、牽引リヤカー1が大きくカーブしようとする場合の、配達員と連結荷台3との接触が防止されることなる。これらにより、リヤカー本体2を連結した場合の、配達員により荷物の配達時に、各種積載状態や走行する道路事情、走行状態等に係わらず自転車による牽引リヤカー1の走行がよりムーズに行えることになる。   In addition, when the delivery person tries to travel with the direction of the bicycle changed by about 90 degrees, the universal joint 8 can be rotated by a predetermined angle in the horizontal direction, and the width can be increased to the left and right front end sides of the loading surface 6 of the coupled loading platform 3. Since the narrow part 7 is provided, the delivery person's body is located in the narrow part 7 and the delivery person and the coupled cargo bed 3 when the towed rear car 1 is going to curve greatly. Contact will be prevented. As a result, when the rear car body 2 is connected, the towed rear car 1 can be traveled more smoothly by bicycle regardless of various loading conditions, road conditions, traveling conditions, etc., when the delivery person delivers the luggage. .
一方、配達を終了して牽引リヤカー1を車庫等に保管(駐輪)する場合は、次のようにして行う。すなわち、先ず、中身が空となった保冷ボックスや肩掛けボックス等を積載面2b、6や棚板2d上から降ろし、荷台連結部材21の連結ピン24を、図10の二点鎖線で示すように矢印ニ方向に引っ張る。この引っ張り時に、操作部24bの操作ボタン24b1を押しながら行うことによりピン24a1が係止部24aの外周面から引っ込んで、ピン24a1と上取付板22との係止状態が解除されて連結ピン24が継ぎ手挿入筒26の挿通孔26bから引き抜かれる。   On the other hand, when the delivery is finished and the towing rear car 1 is stored (parked) in a garage or the like, it is performed as follows. That is, first, the cold storage box or the shoulder box whose contents are empty is lowered from the loading surfaces 2b and 6 and the shelf 2d, and the connecting pin 24 of the loading platform connecting member 21 is indicated by a two-dot chain line in FIG. Pull in the direction of arrow D. During this pulling, the pin 24a1 is retracted from the outer peripheral surface of the locking portion 24a by pressing the operation button 24b1 of the operating portion 24b, and the locking state between the pin 24a1 and the upper mounting plate 22 is released, and the connecting pin 24 Is pulled out from the insertion hole 26 b of the joint insertion cylinder 26.
これにより、上取付板22と自在継ぎ手8の係止状態が解除され、この状態で、連結荷台3の前端側を上方に持ち上げることで、自在継ぎ手8が継ぎ手挿入筒26の継ぎ手係合部26aから抜き取られ、連結荷台3と荷台連結部材21の連結状態が解除される。なお、継ぎ手挿入筒26から引き抜かれた連結ピン24は、上取付板22にワイヤー28で連結されていることから、その紛失が防止された状態となる。   As a result, the locking state of the upper mounting plate 22 and the universal joint 8 is released, and in this state, the universal joint 8 is lifted upward so that the universal joint 8 is connected to the joint engaging portion 26a of the joint insertion tube 26. The connection state of the connection carrier 3 and the carrier connection member 21 is released. Since the connecting pin 24 pulled out from the joint insertion cylinder 26 is connected to the upper mounting plate 22 by the wire 28, the connecting pin 24 is prevented from being lost.
この状態で自転車を所定位置に駐輪すると共に、自転車との連結状態が解除された牽引リヤカー1の連結荷台3とリヤカー本体2との連結を解除する。この解除は、先ず、連結荷台3を牽引フレームとして使用して、例えば牽引リヤカー1を所定の保管位置まで移動させ、連結荷台3の支柱部3bのフック部材14の操作レバーを操作して、フック部材14と係止金具2fとの係止状態を解除する。この解除は支持ブロック4の締付ネジ4aを緩めると共に連結荷台3を上方に持ち上げつつ、フック部材14の操作レバーを操作して、フック部材14と係止金具2fの係止状態を解除しつつ、支持パイプ17を支持ブロック4の嵌合孔から抜き取ることで行うことができる。   In this state, the bicycle is parked at a predetermined position, and the connection between the connection platform 3 of the towed rear car 1 and the rear car body 2 released from the connection state with the bicycle is released. For this release, first, using the coupled loading platform 3 as a towing frame, for example, the towing rear car 1 is moved to a predetermined storage position, and the operation lever of the hook member 14 of the column portion 3b of the coupled loading platform 3 is operated. The locked state between the member 14 and the locking bracket 2f is released. This release is achieved by loosening the tightening screw 4a of the support block 4 and lifting the connecting cargo bed 3 upward and operating the operating lever of the hook member 14 to release the locked state of the hook member 14 and the locking bracket 2f. The support pipe 17 can be removed from the fitting hole of the support block 4.
そして、リヤカー本体2から分離された連結荷台3のヒンジ16の操作レバー16dを操作して、一対のヒンジ部材16b、16cを屈曲させることで、荷台部3aと支柱部3bが折り畳まれた状態となる。この折り畳んだ連結荷台3を所定位置に保管する。次に、リヤカー本体2の前記背面板側の丸パイプの一端を外すこと等により、リヤカー本体2を折り畳み、連結荷台3と共に所定位置に保管する。   Then, by operating the operation lever 16d of the hinge 16 of the coupled cargo bed 3 separated from the rear car body 2 to bend the pair of hinge members 16b and 16c, the cargo bed portion 3a and the column portion 3b are folded. Become. The folded connection carrier 3 is stored in a predetermined position. Next, the rear car body 2 is folded by storing one end of the round pipe on the back plate side of the rear car body 2 and stored in a predetermined position together with the connecting cargo bed 3.
すなわち、前記牽引リヤカー1の場合、連結荷台3とリヤカー本体2が共に折り畳み可能であることから、その外形形状を小さくした状態で保管(駐車)できることになる。なお、前記牽引リヤカー1のリヤカー本体2の各板やパイプ、連結荷台3の各パイプ等は、アルミニウム製でその軽量化が図られると共に、連結荷台3の積載面6を形成する各角パイプの表面には荷物滑り止め用の細溝等を形成されている。   That is, in the case of the towed rear car 1, since the coupled cargo bed 3 and the rear car main body 2 can be folded together, it can be stored (parked) with its outer shape reduced. The plates and pipes of the rear car body 2 of the towed rear car 1 and the pipes of the connecting cargo bed 3 are made of aluminum to reduce the weight thereof, and each corner pipe forming the loading surface 6 of the connecting cargo bed 3 is made of aluminum. A narrow groove for preventing slipping of luggage is formed on the surface.
このように、前記牽引リヤカー1の連結構造によれば、連結荷台3の前端部に設けた水平方向及び垂直方向に所定角度回動自在な自在継ぎ手8を荷台連結部材21に回動自在に連結すると共に、連結荷台3の後端部に設けたリヤカー連結部材としての支柱部3bをリヤカー本体の前端部に連結するため、自転車の荷台20を利用して連結荷台3と自転車とを簡単かつ確実に連結することができる。   As described above, according to the connecting structure of the traction rear car 1, the universal joint 8 provided at the front end portion of the connecting cargo bed 3 and capable of rotating by a predetermined angle in the horizontal direction and the vertical direction is rotatably connected to the cargo bed connecting member 21. At the same time, since the column portion 3b as the rear car connecting member provided at the rear end portion of the connecting cargo bed 3 is connected to the front end portion of the rear car body, the connecting cargo bed 3 and the bicycle can be easily and reliably connected using the bicycle loading platform 20. Can be linked to.
また同時に、牽引リヤカー1の荷物の積載効率を高めることができるため、比較的大きな面積を確保可能な連結荷台3の積載面6上への荷物の積載で、リヤカー本体2自体の積載面2bへの荷物の積載量を少なくできることから、例えばリヤカー本体2の前後方向の長さを短くできる等、リヤカー本体2の小型化が可能で駐車スペースの小さい場所での使用や保管(駐車)が容易な牽引リヤカー1を得ることができる。   At the same time, since the load efficiency of the towed rear car 1 can be increased, the load can be loaded on the loading surface 6 of the coupled loading platform 3 capable of securing a relatively large area, and then loaded onto the loading surface 2b of the rear car body 2 itself. Since the load capacity of the car can be reduced, the rear car body 2 can be reduced in size, for example, the length of the rear car body 2 can be shortened, and can be used and stored (parked) in a small parking space. The towing rear car 1 can be obtained.
また、荷台連結部材21の連結ピン24の操作部24bに、上方から押圧操作可能な操作ボタン24b1が設けられると共に、ワイヤー28により上取付板22に連結されているため、連結ピン24の脱着操作を簡単に行うことができると共に、連結ピン24自体の紛失を防いで、使い勝手に優れた牽引リヤカー1を得ることができる。   Further, the operation portion 24b of the connection pin 24 of the cargo bed connection member 21 is provided with an operation button 24b1 that can be pressed from above, and is connected to the upper mounting plate 22 by a wire 28. Can be easily performed, and the loss of the connecting pin 24 itself can be prevented, so that the towed rear car 1 excellent in usability can be obtained.
さらに、荷台連結部材21の上取付板22に設けた継ぎ手係合部26aへの連結ピン24の装着により自在継ぎ手8が荷台連結部材21に回動可能に連結されると共に、継ぎ手係合部26aから連結ピン24を引き抜くことによりその連結状態が解除されるため、連結ピン24の脱着操作で、連結荷台3と荷台20を連結したりその連結解除を行うことができ、連結作業や牽引リヤカー1の保管作業を一層容易に行うことができる。特に、連結ピン24がその操作部24bの操作で上取付板22と自在継ぎ手8を係止状態もしくは非係止状態に設定可能なピン24a1を有するため、操作部24bの操作という簡単な操作で、連結ピン24による連結や連結解除を行うことができて、連結作業や牽引リヤカー1の保管作業をより一層容易に行うことができる。   Furthermore, the universal joint 8 is rotatably connected to the cargo bed coupling member 21 by mounting the coupling pin 24 to the joint engagement portion 26a provided on the upper mounting plate 22 of the cargo bed coupling member 21, and the joint engagement portion 26a. Since the connection state is released by pulling the connection pin 24 out of the connection pin 24, the connection platform 3 and the load platform 20 can be connected or released by the operation of removing the connection pin 24. The storage operation can be performed more easily. In particular, since the connecting pin 24 has the pin 24a1 that can set the upper mounting plate 22 and the universal joint 8 to the locked state or the non-locked state by the operation of the operation portion 24b, the operation portion 24b can be operated simply. Thus, the connection and disconnection by the connection pin 24 can be performed, and the connection operation and the storage operation of the towed rear car 1 can be performed more easily.
また、連結荷台3の支柱部3bの下端がリヤカー本体2の車体2a前端部に着脱可能に連結されると共に、この支柱部3bが荷台部3aに対して折り畳み可能に配設されているため、連結荷台3自体を折り畳むことができて、その保管スペースを小さくして一層容易に保管することができる。また、リヤカー本体2が折り畳み可能であるため、牽引リヤカー1の保管時に、リヤカー本体2を折り畳むことでその外形を小形として、牽引リヤカー1の保管時のスペースをより一層小さくすることができる。   In addition, since the lower end of the column part 3b of the connecting cargo bed 3 is detachably connected to the front end part of the vehicle body 2a of the rear car body 2, the column part 3b is disposed so as to be foldable with respect to the cargo bed part 3a. The coupled cargo bed 3 itself can be folded, and the storage space can be reduced and stored more easily. Further, since the rear car body 2 can be folded, the outer shape of the rear car body 2 can be reduced by folding the rear car body 2 when the towing rear car 1 is stored, and the space for storing the towing rear car 1 can be further reduced.
また、連結荷台3がその前端部に設けた自在継ぎ手8を介して自転車の荷台20に水平方向と垂直方向に所定角度回転自在に連結されるため、リヤカー本体2が連結荷台3を介して自転車の走行に良好に追従できて、牽引リヤカー1の安定した走行が可能になる。またさらに、連結荷台3の前端側の左右角部に幅狭部7が形成されているため、自転車のハンドル部分等が連結荷台3に対して90度近くまで回転した場合でも、自転車を操作する配達員の身体の連結荷台3への接触を防止できて、牽引リヤカー1の一層安定した走行が可能になる。   In addition, since the coupled loading platform 3 is coupled to the bicycle loading platform 20 via a universal joint 8 provided at the front end thereof so as to be rotatable at a predetermined angle in the horizontal direction and the vertical direction, the rear car body 2 is coupled to the bicycle via the coupling loading platform 3. Thus, the towing rear car 1 can stably travel. Further, since the narrow portion 7 is formed at the left and right corners on the front end side of the coupled cargo bed 3, the bicycle is operated even when the handle portion of the bicycle is rotated to nearly 90 degrees with respect to the coupled cargo bed 3. It is possible to prevent the delivery person's body from coming into contact with the coupled carrier 3, and the towed rear car 1 can travel more stably.
ところで、前記実施形態においては、リヤカー本体2と自転車の荷台20とを、リヤカー連結部材(支柱部3b)を有する連結荷台3と荷台連結部材21とで連結したが、本発明はこの構成に限定されず、例えば図11に示すように、リヤカー本体2の牽引フレーム33の中央位置に前記自在継ぎ手8を配設し、この自在継ぎ手8を自転車の荷台20に固定した前記荷台連結部材21に連結しても良い。この場合は、リヤカー本体2の牽引フレーム33の先端部分に前記連結荷台3に相当する適宜の荷台を例えば着脱可能に設けるようにすれば良い。   By the way, in the said embodiment, although the rear-car main body 2 and the bicycle carrier 20 were connected with the connection carrier 3 and the carrier connection member 21 which have a rear-car connection member (support | pillar part 3b), this invention is limited to this structure. For example, as shown in FIG. 11, the universal joint 8 is arranged at the center position of the traction frame 33 of the rear car body 2, and the universal joint 8 is connected to the carrier connection member 21 fixed to the bicycle carrier 20. You may do it. In this case, an appropriate cargo bed corresponding to the connected cargo bed 3 may be provided, for example, in a detachable manner at the tip of the traction frame 33 of the rear car body 2.
なお、前記実施形態においては、連結荷台3が積載面を有する荷台部3aとリヤカー連結部材としての支柱部3bを有して、これらを折り畳み可能に構成したが、本発明はこの構成に限定されず、例えば支柱部3bに相当する部材を予めリヤカー本体2の前端部に固定し、これに荷台部3aを有する連結荷台3を着脱可能に配設することもできるし、荷台部3aをリヤカー本体2に予め固定的に配設することもできる。   In the above-described embodiment, the connecting cargo bed 3 includes the loading platform portion 3a having a loading surface and the support column portion 3b as a rear car coupling member, and these can be folded. However, the present invention is limited to this configuration. For example, a member corresponding to the column portion 3b can be fixed in advance to the front end portion of the rear car main body 2, and the connecting cargo bed 3 having the cargo bed portion 3a can be detachably disposed on the member. 2 can be fixed in advance.
また、前記実施形態における、荷台連結部材21の上取付板22や下取付板23の構成、連結ピン24の構成、連結荷台3の形状や大きさあるいは折り畳み可能であるか否か等の構成等は一例であって、例えば下取付板を1枚板としたり、荷台連結部材21を、使用する自転車(牽引車)の荷台20構成に対応させた構成とする等、本発明に係わる各発明の要旨を逸脱しない範囲において適宜の構成を採用することができる。   Further, in the above-described embodiment, the structure of the upper mounting plate 22 and the lower mounting plate 23 of the loading platform connecting member 21, the configuration of the connecting pin 24, the configuration and size of the connecting loading platform 3, or whether it can be folded, and the like. Is an example. For example, the lower mounting plate is a single plate, or the loading platform connecting member 21 is configured to correspond to the loading platform 20 configuration of the bicycle (towing vehicle) to be used. Appropriate configurations can be employed without departing from the scope of the invention.
本発明は、保冷ボックス等に食品を収容して配達する際に使用される牽引リヤカーに限らず、例えば宅配業者等のように梱包された各種荷物をそのまま積載して配達する際の牽引リヤカー等、各種の牽引リヤカーの牽引車への連結構造にも利用できる。   The present invention is not limited to a towed rear car used for storing and delivering food in a cold box or the like, but for example, a towed rear car for loading and delivering various packages packed as in a courier service etc. It can also be used to connect various towing rear cars to towing vehicles.
1・・・・・・・牽引リヤカー
2・・・・・・・リヤカー本体
2a・・・・・・車体
2b・・・・・・積載面
2d・・・・・・棚板
2f・・・・・・係止金具
3・・・・・・・連結荷台
3a・・・・・・荷台部
3b・・・・・・支柱部(リヤカー連結部材)
4・・ ・・・・支持ブロック
6・・・・・・・積載面
7・・・・・・・幅狭部
8・・・・・・・自在継ぎ手
8d・・・・・・貫通孔
11・・・・・・垂直支柱
13・・・・・・ヒンジ
14・・・・・・フック部材
16・・・・・・ヒンジ
16d・・・・・操作レバー
17・・・・・・支持パイプ
20・・・・・・荷台
20a・・・・・金属棒
21・・・・・・荷台連結部材
22・・・・・・上取付板
23・・・・・・下取付板
24・・・・・・連結ピン
24a・・・・・係止部
24a1・・・・ピン
26・・・・・・連結ピン挿入筒
26a・・・・・継ぎ手係合部
1. Towing rear car 2 .... Rear car body 2a ... Car body 2b ... Loading surface 2d ... Shelf 2f ... ·················································································· Supporting part (rear car connecting member)
4... Support block 6... Loading surface 7. ························································································································· 20... Loading platform 20 a... Metal rod 21... Loading platform connection member 22... Upper mounting plate 23. ... Connecting pin 24a ... Locking part 24a1 ... Pin 26 ... ... Connecting pin insertion tube 26a ... Joint engaging part

Claims (4)

  1. 荷物を積載可能な車体及び該車体の左右外側に回転自在に配設された車輪を有するリヤカー本体を、牽引車の荷台部分に連結する牽引リヤカーの牽引車への連結構造であって、
    前記牽引車の荷台と前記リヤカー本体の車体先端部との間に水平状態で配設され上面に平坦な積載面を有する連結荷台と、前記牽引車の荷台に取り付けられる荷台連結部材とを備え、
    前記連結荷台の前端部に設けた水平方向及び垂直方向に所定角度回動自在な自在継ぎ手を前記荷台連結部材に回動自在に連結すると共に、前記連結荷台の後端部に設けたリヤカー連結部材を前記リヤカー本体の車体前端部に連結することを特徴とする牽引リヤカーの牽引車への連結構造。
    A structure for connecting to a towing vehicle of a towed rear car for connecting a rear car body having a vehicle body capable of loading a load and a wheel rotatably disposed on the left and right outer sides of the vehicle body to a loading platform part of the towing vehicle,
    A connecting bed having a flat loading surface disposed in a horizontal state between a loading platform of the towing vehicle and a vehicle body front end portion of the rear car body, and a loading platform coupling member attached to the loading platform of the towing vehicle,
    A rear joint connecting member provided at a rear end portion of the connecting cargo bed and a free joint that is provided at a front end portion of the connecting cargo bed and is rotatable at a predetermined angle in a horizontal direction and a vertical direction. A structure for connecting a towing vehicle to a towing vehicle, wherein the towing vehicle is connected to a front end portion of the rear car body.
  2. 前記荷台連結部材は、前記牽引車の荷台に固定可能な上取付板と下取付板及び連結ピンを有し、前記上取付板に設けた継ぎ手係合部への連結ピンの装着により前記自在継ぎ手が上取付板に回動可能に連結されると共に、前記継ぎ手係合部から連結ピンを引き抜くことによりその連結状態が解除されることを特徴とする請求項1に記載の牽引リヤカーの牽引車への連結構造。   The loading platform connecting member has an upper mounting plate, a lower mounting plate, and a connecting pin that can be fixed to the loading platform of the towing vehicle, and the universal joint can be mounted by attaching the connecting pin to a joint engaging portion provided on the upper mounting plate. 2. The towing vehicle of the towing rear car according to claim 1, wherein the towing vehicle is pivotally connected to the upper mounting plate and the connected state is released by pulling out the connecting pin from the joint engaging portion. Connection structure.
  3. 前記連結ピンは、その操作部の操作で前記上取付板と自在継ぎ手を係止状態もしくは非係止状態に設定可能なピンを有することを特徴とする請求項2に記載の牽引リヤカーの牽引車への連結構造。   3. The towing vehicle for a towing rear car according to claim 2, wherein the connecting pin has a pin capable of setting the upper mounting plate and the universal joint to a locked state or a non-locked state by operation of an operation portion thereof. Connecting structure to.
  4. 前記連結荷台は、その積載面の後端部に下方に延設された前記リヤカー連結部材を有し、該リヤカー連結部材の下端が前記リヤカー本体の車体前端部に着脱可能に連結されると共に、該リヤカー連結部材が前記積載面に対して折り畳み可能に配設されていることを特徴とする請求項1ないし3のいずれかに記載の牽引リヤカーの牽引車への連結構造。   The connecting platform has the rear car connecting member extending downward at the rear end of the loading surface, and the lower end of the rear car connecting member is detachably connected to the front end of the rear car body, 4. The structure for connecting a towed rear car to a towing vehicle according to claim 1, wherein the rear car connecting member is disposed so as to be foldable with respect to the loading surface.
JP2014016089A 2014-01-30 2014-01-30 Connecting structure of tow truck to tow truck Expired - Fee Related JP6227430B2 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5240447U (en) * 1975-09-12 1977-03-23
JPS52105753U (en) * 1976-02-10 1977-08-11
JP2013067226A (en) * 2011-09-21 2013-04-18 Yazaki Ind Chem Co Ltd Coupling device for tractor such as bicycle and trailer such as two-wheeled cart
JP2014058180A (en) * 2012-09-14 2014-04-03 Tobu:Kk Rear car
JP2014058174A (en) * 2012-09-14 2014-04-03 Tobu:Kk Bicycle drawn cart

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5240447U (en) * 1975-09-12 1977-03-23
JPS52105753U (en) * 1976-02-10 1977-08-11
JP2013067226A (en) * 2011-09-21 2013-04-18 Yazaki Ind Chem Co Ltd Coupling device for tractor such as bicycle and trailer such as two-wheeled cart
JP2014058180A (en) * 2012-09-14 2014-04-03 Tobu:Kk Rear car
JP2014058174A (en) * 2012-09-14 2014-04-03 Tobu:Kk Bicycle drawn cart

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