JP2022041572A

JP2022041572A - Connection mechanism

Info

Publication number: JP2022041572A
Application number: JP2020146850A
Authority: JP
Inventors: 敬博村上; Takahiro Murakami; 勇千葉; Isamu Chiba
Original assignee: Shigeoh Co Ltd
Current assignee: Shigeoh Co Ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2022-03-11
Anticipated expiration: 2040-09-01
Also published as: JP7126715B2

Abstract

To provide a connection mechanism that connects a bicycle to a rear car, which can easily separate the bicycle and the rear car, connected to each other, from each other and can brake the rear car.SOLUTION: A connection mechanism 100 comprises a first member 110 and a second member 120 configured to be fitted to the first member 110 to be relatively movable with the first member 110. One end 111 of the first member 110 is engaged with a connection site at a rear part of a bicycle, and the second member 120 is connected to a rear car through a third member 130. At the time of slowing down the bicycle, the first member 110 and the second member 120 relatively move by inertia force of the rear car. Accordingly, a wire 341 is pulled so as to enable a braking mechanism of the rear car to be activated.SELECTED DRAWING: Figure 2

Description

本発明は、自転車およびリヤカーを連結し、自転車の推進に応じて、リヤカーが自転車と一体的に走行可能となるように構成された連結機構に関する。 The present invention relates to a connecting mechanism that connects a bicycle and a rear car so that the rear car can travel integrally with the bicycle in response to the propulsion of the bicycle.

従来、自転車およびリヤカーを連結する連結機構が知られている。この種の連結機構は、一般に、自転車の後部とリヤカーの前部とを連結可能に構成される場合が多い。この場合、リヤカーは、自転車の後方に配置されて、自転車の推進に応じて一体的に走行可能となる。 Conventionally, a connecting mechanism for connecting a bicycle and a rear car is known. In general, this type of connecting mechanism is often configured so that the rear part of the bicycle and the front part of the rear car can be connected to each other. In this case, the rear car is arranged behind the bicycle and can travel integrally according to the propulsion of the bicycle.

上記のように連結機構により連結された自転車およびリヤカーにおいては、リヤカーに制動機構が備えられると好適である。自転車およびリヤカーが、一体的に走行している状態で、運転者の操作により自転車が減速する場合を考える。この場合、走行方向と同じ方向に、リヤカーの慣性力が発生する。この慣性力は、リヤカーの前部から、連結機構を介して、自転車の後部に作用する。 In the bicycle and the rear car connected by the connecting mechanism as described above, it is preferable that the rear car is provided with a braking mechanism. Consider the case where the bicycle and the rear car are running integrally and the bicycle decelerates due to the operation of the driver. In this case, the inertial force of the rear car is generated in the same direction as the traveling direction. This inertial force acts from the front of the rear car to the rear of the bicycle via the coupling mechanism.

このため、自転車の後輪に対し、運転者が意図しない力が加わることになる。従って、自転車の操作に影響を及ぼす事象が、発生する可能性がある。これに対し、リヤカーに制動機構が備えられている場合（例えば、下記特許文献を参照）、自転車の減速時に、リヤカーの制動が可能となる。このため、上述の事象の発生が、抑制され得る。 Therefore, a force unintended by the driver is applied to the rear wheel of the bicycle. Therefore, an event that affects the operation of the bicycle may occur. On the other hand, when the rear car is provided with a braking mechanism (for example, refer to the following patent document), the rear car can be braked when the bicycle is decelerated. Therefore, the occurrence of the above-mentioned event can be suppressed.

実開昭６４－４０７８２号公報Jitsukaisho 64-4072 Gazette 特開２００３－２９１７８９号公報Japanese Patent Application Laid-Open No. 2003-291789 実用新案登録第３１８０４４６号公報Utility Model Registration No. 3180446 Gazette 特開２００４－１５５３１９号公報Japanese Unexamined Patent Publication No. 2004-155319 特開２０１８－５２３６６号公報Japanese Unexamined Patent Publication No. 2018-52366

一方で、自転車とリヤカーは連結した状態では全長が大きくなるため、特に都市部において、自転車およびリヤカーを、それぞれ簡易に分離して保管できることが望ましい。このように、上述のリヤカーにおける制動と容易な分離を両立させる技術が求められている。しかしながら、上記特許文献に記載のいずれの技術においても、上記両立の達成は困難である。 On the other hand, since the total length of the bicycle and the rear car becomes large when they are connected, it is desirable that the bicycle and the rear car can be easily separated and stored, especially in an urban area. As described above, there is a demand for a technique for achieving both braking and easy separation in the above-mentioned rear car. However, it is difficult to achieve the above compatibility with any of the techniques described in the above patent documents.

本発明の目的は、自転車およびリヤカーを連結する連結機構であって、連結されている自転車およびリヤカーをそれぞれ容易に分離できるとともに、リヤカーの制動が可能となるものを提供することにある。 An object of the present invention is to provide a connecting mechanism for connecting a bicycle and a rear car, in which the connected bicycle and the rear car can be easily separated from each other and the rear car can be braked.

本発明による連結機構は、自転車の走行方向において自転車の後部に位置する第１連結部位と、走行方向において自転車の後方に配置されるリヤカーであってリヤカーが備える制動機構の作動により制動可能なリヤカーの前部に位置する第２連結部位と、をそれぞれ連結し、自転車の推進に応じて、リヤカーが自転車と一体的に走行可能となるように構成される。 The connecting mechanism according to the present invention is a rear car arranged at the rear of the bicycle in the traveling direction of the bicycle and a rear car arranged behind the bicycle in the traveling direction, and can be braked by the operation of the braking mechanism provided in the rear car. The second connecting portion located in the front part of the bicycle is connected to each other so that the rear car can run integrally with the bicycle according to the propulsion of the bicycle.

本発明による連結機構の特徴は、上記連結機構が、一端が第１連結部位と連結可能に構成されるとともに、一端が第１連結部位と連結可能に構成された第１部材と、所定の範囲内で第１部材と軸方向に沿って相対移動が可能に構成された第２部材と、第２連結部位と第２部材とを連結可能に構成された第３部材とを備え、自転車の減速時における第１部材および第２部材の相対移動に基づいて、制動機構を作動させてリヤカーが制動されるように構成されたことにある。 The feature of the connecting mechanism according to the present invention is that the connecting mechanism is configured to be connectable to the first connecting portion at one end and to be connected to the first connecting portion at one end, and a predetermined range. A second member configured to be able to move relative to the first member in the axial direction, and a third member configured to be able to connect the second connecting portion and the second member are provided, and the bicycle is decelerated. It is configured that the rear car is braked by operating the braking mechanism based on the relative movement of the first member and the second member at the time.

これによれば、上記連結機構における相対移動により、リヤカーが制動され得る。加えて、第１連結部位から上記連結機構を取り外すことにより、連結されている自転車およびリヤカーを、それぞれ容易に分離することができる。 According to this, the rear car can be braked by the relative movement in the connecting mechanism. In addition, by removing the connecting mechanism from the first connecting portion, the connected bicycle and rear car can be easily separated from each other.

上記発明に係る連結機構においては、リヤカーの制動機構が、ワイヤを備え、ワイヤの一端のリヤカーに対する走行方向への引っ張りに応じてリヤカーが制動されるように構成され、一端が第１部材に取付けられて、一端を支点として第１部材の軸に直交する軸まわりに第１部材に対し回動可能に構成されるとともに、他端にワイヤの一端が取付けられるように構成された第４部材と、一端が第２部材に取付けられて第２部材と一体的に移動可能に構成されるとともに、他端に第４部材が取付けられるように構成された第５部材と、が更に備えられ、上記連結機構が、自転車の減速時において、第５部材が、第１部材に対する第２部材の相対移動の方向と同じ方向へ移動し、第５部材の移動に応じて、第４部材が、第１部材に対する第２部材の相対移動の方向と同じ方向に回動し、第４部材の回動に応じて、ワイヤの一端が走行方向へ引っ張られることでリヤカーが制動されるように構成されると好適である。 In the connecting mechanism according to the above invention, the braking mechanism of the rear car is provided with a wire so that the rear car is braked in response to the pulling of one end of the wire with respect to the rear car in the traveling direction, and one end thereof is attached to the first member. The fourth member is configured to be rotatable with respect to the first member around an axis orthogonal to the axis of the first member with one end as a fulcrum, and one end of the wire is attached to the other end. A fifth member is further provided, one end of which is attached to the second member so as to be movable integrally with the second member, and the other end of which is configured to be attached to the fourth member. When the connecting mechanism decelerates the bicycle, the fifth member moves in the same direction as the relative movement of the second member with respect to the first member, and the fourth member moves in the same direction as the movement of the fifth member. When the rear car is configured to rotate in the same direction as the relative movement of the second member with respect to the member and the rear car is braked by pulling one end of the wire in the traveling direction in response to the rotation of the fourth member. Suitable.

ここにおいて、第１部材が、第２部材と嵌合し、第１連結部位と連結される一端が第２部材から露出するように構成されるとともに、第２部材と嵌合する領域において第４部材の一端の取付け部位を備えるように構成され、第２部材が、第４部材に嵌合される貫通孔を、第１部材における第４部材の一端の取付け部位に対応する部位に備えるように構成され、第４部材が、第１部材に取付けられる一端が第１部材とともに第２部材に囲われるとともに、ワイヤの一端に取付けられる他端が第２部材から露出するよう第２部材の貫通孔と嵌合するように構成され、第５部材が、第４部材に取付けられる他端が第４部材の一端および第４部材の他端の間に位置するとともに、第２部材に取付けられる一端および第４部材に取付けられる他端の間にリンク機構を備えるように構成されてもよい。 Here, the first member is configured to be fitted with the second member, and one end connected to the first connecting portion is exposed from the second member, and the fourth member is fitted with the second member. The second member is configured to include a mounting portion at one end of the member, and the second member is provided with a through hole fitted to the fourth member at a portion corresponding to the mounting portion at one end of the fourth member in the first member. A through hole in the second member so that one end of the fourth member attached to the first member is surrounded by the second member together with the first member and the other end attached to one end of the wire is exposed from the second member. The fifth member is configured to be fitted with, the other end of which is attached to the fourth member is located between one end of the fourth member and the other end of the fourth member, and one end attached to the second member and the other end. A link mechanism may be provided between the other ends attached to the fourth member.

また、第１部材が、第２部材と嵌合し、第１連結部位と連結される一端と、一端と反対側の他端とが第２部材からそれぞれ露出するように構成されるとともに、第１部材の他端において、第４部材の一端の取付け部位を備えるように構成され、第４部材が、第１部材に取付けられる一端と、ワイヤの一端に取付けられる他端とが第２部材から露出するように構成され、第５部材が、第４部材に取付けられる他端が、第４部材の一端および第４部材の他端との間に位置するように構成されてもよい。 Further, the first member is configured so that one end connected to the first connecting portion and the other end opposite to the one end are exposed from the second member by fitting with the second member. The other end of one member is configured to include a mounting portion for one end of the fourth member, the fourth member has one end attached to the first member and the other end attached to one end of the wire from the second member. The fifth member may be configured to be exposed so that the other end attached to the fourth member is located between one end of the fourth member and the other end of the fourth member.

上記発明に係る連結機構においては、リヤカーが、走行方向における前部に所定位置に孔を備えた中空状のバーを備えるとともに第２連結部位がバーに位置するように構成され、リヤカーの制動機構が、ワイヤを備え、ワイヤがバーの中空部を連通しつつワイヤの一端がバーの孔から露出するとともに、ワイヤの一端のリヤカーに対する走行方向とは逆の方向への引っ張りに応じてリヤカーが制動されるように構成され、第１部材が、第２部材により囲われるように第２部材と嵌合する小径部と、第１連結部位と連結される一端と、一端と反対側の他端と、他端に位置する大径部とが、第２部材からそれぞれ露出するように構成されるとともに、第１部材の他端において、ワイヤの一端の取付け部位を備えるように構成され、第３部材は、リヤカーのバーが、第１部材の他端よりも走行方向側に配置されるよう、第２部材と連結可能に構成され、自転車の減速時において、バーが、第１部材に対する第２部材の相対移動の方向と同じ方向へ移動し、バーの移動に応じてワイヤの一端が走行方向とは逆の方向への引っ張られることでリヤカーが制動されるように構成されると好適である。 In the connecting mechanism according to the above invention, the rear car is configured to have a hollow bar having a hole at a predetermined position in the front portion in the traveling direction and the second connecting portion is located on the bar, and the braking mechanism of the rear car is provided. However, it is equipped with a wire, and while the wire communicates with the hollow part of the bar, one end of the wire is exposed from the hole of the bar, and the rear car brakes in response to the pull of one end of the wire in the direction opposite to the traveling direction with respect to the rear car. A small diameter portion in which the first member is fitted to the second member so as to be surrounded by the second member, one end connected to the first connecting portion, and the other end opposite to one end. The large-diameter portion located at the other end is configured to be exposed from the second member, and the other end of the first member is configured to include a mounting portion for one end of the wire. Is configured to be connectable to the second member so that the bar of the rear car is arranged on the traveling direction side from the other end of the first member, and the bar is a second member with respect to the first member when the bicycle is decelerated. It is preferable that the rear car is configured to move in the same direction as the relative movement direction of the rear car and to brake the rear car by pulling one end of the wire in the direction opposite to the traveling direction according to the movement of the bar.

上記発明に係る連結機構においては、上記連結機構が、自転車の減速時における第１部材および第２部材の相対移動に対し、弾性的に抗力を付勢する付勢機構を更に備えるとより好適である。 In the connecting mechanism according to the present invention, it is more preferable that the connecting mechanism further includes an urging mechanism that elastically urges a drag force against the relative movement of the first member and the second member during deceleration of the bicycle. be.

本発明の第１実施形態に係る連結機構が適用された自転車およびリヤカーの構成図である。It is a block diagram of the bicycle and the rear car to which the connecting mechanism which concerns on 1st Embodiment of this invention is applied. 図１に示した連結機構の構成図である。It is a block diagram of the connection mechanism shown in FIG. 図１に示した連結機構を構成する各部材を説明するための図である。It is a figure for demonstrating each member constituting the connection mechanism shown in FIG. 図１に示した連結機構の第１連結部位と第１部材の一端を示す斜視図である。It is a perspective view which shows the 1st connection part of the connection mechanism shown in FIG. 1 and one end of the 1st member. 図１に示した連結機構の第３部材を示す斜視図である。It is a perspective view which shows the 3rd member of the connection mechanism shown in FIG. 図１に示した連結機構の作動を説明するための図である。It is a figure for demonstrating the operation of the connection mechanism shown in FIG. 本発明の第２実施形態に係る連結機構の構成図である。It is a block diagram of the connection mechanism which concerns on 2nd Embodiment of this invention. 本発明の第２実施形態に係る連結機構を構成する各部材を説明するための図である。It is a figure for demonstrating each member constituting the connection mechanism which concerns on 2nd Embodiment of this invention. 本発明の第２実施形態に係る連結機構の作動を説明するための図である。It is a figure for demonstrating operation of the connection mechanism which concerns on 2nd Embodiment of this invention. 本発明の第３実施形態に係る連結機構が適用された自転車およびリヤカーの構成図である。It is a block diagram of the bicycle and the rear car to which the connecting mechanism which concerns on 3rd Embodiment of this invention is applied. 図１０に示した連結機構の構成図である。It is a block diagram of the connection mechanism shown in FIG. 図１０に示した連結機構を構成する各部材を説明するための図である。It is a figure for demonstrating each member constituting the connection mechanism shown in FIG. 図１０に示した連結機構の作動を説明するための図である。It is a figure for demonstrating the operation of the connection mechanism shown in FIG.

以下、本発明による連結機構の各実施形態について図面を参照しつつ説明する。 Hereinafter, embodiments of the coupling mechanism according to the present invention will be described with reference to the drawings.

（第１実施形態）
先ず、本発明による連結機構の第１実施形態を説明する。図１は、本発明の第１実施形態に係る連結機構１００が適用された自転車２００およびリヤカー３００の構成図である。連結機構１００は、自転車２００およびリヤカー３００を連結している。 (First Embodiment)
First, a first embodiment of the connecting mechanism according to the present invention will be described. FIG. 1 is a configuration diagram of a bicycle 200 and a rear car 300 to which the connecting mechanism 100 according to the first embodiment of the present invention is applied. The connecting mechanism 100 connects the bicycle 200 and the rear car 300.

自転車２００は、図１の矢印に示すよう方向Ａに沿って走行する。自転車２００は、図示しない前輪と、方向Ａにおける後部に、後輪２１０と、荷台２２０とを備えている。後輪２１０のハブ２１１には、荷台２２０が連結されており、第１連結部位２２１が、荷台２２０と一体的に備えられている。第１連結部位２２１は、方向Ａにおいて、自転車２００の後部に位置している。第１連結部位２２１は、図４に示すように上下方向に延びる概略円筒状をして、上側の端部から下方に延びる雌ネジ２２１ａを形成したものとすることが好ましい。 The bicycle 200 travels along the direction A as shown by the arrow in FIG. The bicycle 200 includes a front wheel (not shown), a rear wheel 210, and a loading platform 220 at the rear in the direction A. A loading platform 220 is connected to the hub 211 of the rear wheel 210, and a first connecting portion 221 is provided integrally with the loading platform 220. The first connecting portion 221 is located at the rear of the bicycle 200 in direction A. As shown in FIG. 4, the first connecting portion 221 is preferably formed into a substantially cylindrical shape extending in the vertical direction to form a female screw 221a extending downward from the upper end portion.

リヤカー３００は、荷台３１０と、一対の車輪３２０と、バー３３０と、制動機構３４０とを備えている。荷台３１０は箱状に形成されており、その側面に一対の車輪３２０が取付けられている。荷台３１０の前部には、バー３３０が取付けられている。第２連結部位３３１は、バー３３０上に配置されており、リヤカー３００の方向Ａにおける最前部に位置している。第２連結部位３３１は、後述する連結機構１００の第３部材１３０と係合可能なように形成されている。 The rear car 300 includes a loading platform 310, a pair of wheels 320, a bar 330, and a braking mechanism 340. The loading platform 310 is formed in a box shape, and a pair of wheels 320 are attached to the side surfaces thereof. A bar 330 is attached to the front portion of the loading platform 310. The second connecting portion 331 is arranged on the bar 330 and is located at the frontmost portion in the direction A of the rear car 300. The second connecting portion 331 is formed so as to be engaged with the third member 130 of the connecting mechanism 100 described later.

連結機構１００は、方向Ａにおいて、リヤカー３００が自転車２００の後方に配置されるよう、第１連結部位２２１および第２連結部位３３１を連結している。これにより、自転車２００の方向Ａへの走行に応じて、リヤカー３００が自転車２００と一体的に方向Ａに走行可能となっている。 The connecting mechanism 100 connects the first connecting portion 221 and the second connecting portion 331 so that the rear car 300 is arranged behind the bicycle 200 in the direction A. As a result, the rear car 300 can travel in the direction A integrally with the bicycle 200 according to the traveling of the bicycle 200 in the direction A.

リヤカー３００においては、制動機構３４０が、各車輪３２０のハブ３２１にそれぞれ取付けられている。制動機構３４０は、ワイヤを引っ張ることで作動し、車輪３２０を制動するものを用いることができる。例えば、ドラム式のブレーキを用いることができる。２つの制動機構３４０は、ワイヤ３４１をそれぞれ備えている。このワイヤ３４１が、制動機構３４０に対して、方向Ａと同じ方向に沿って引っ張られることで、制動機構３４０が作動するようになっている。ワイヤ３４１の一端３４１ａは、後述するように連結機構１００の第４部材１４０に取付けられている。 In the rear car 300, the braking mechanism 340 is attached to the hub 321 of each wheel 320, respectively. As the braking mechanism 340, one that operates by pulling the wire and brakes the wheel 320 can be used. For example, a drum type brake can be used. The two braking mechanisms 340 each include a wire 341. The wire 341 is pulled with respect to the braking mechanism 340 in the same direction as the direction A, so that the braking mechanism 340 operates. One end 341a of the wire 341 is attached to the fourth member 140 of the connecting mechanism 100 as described later.

図２は、本発明の第１実施形態に係る連結機構１００の構成図である。図３は、本発明の第１実施形態に係る連結機構１００を構成する各部材を説明するための図である。図２及び図３は、自転車の左側下方から見た状態を示している。これらの図を参照しつつ、連結機構１００の構成を説明する。なお、図２および図３における方向Ａは、図１に示したものと対応している。 FIG. 2 is a block diagram of the connecting mechanism 100 according to the first embodiment of the present invention. FIG. 3 is a diagram for explaining each member constituting the connecting mechanism 100 according to the first embodiment of the present invention. 2 and 3 show a state seen from the lower left side of the bicycle. The configuration of the connecting mechanism 100 will be described with reference to these figures. The direction A in FIGS. 2 and 3 corresponds to that shown in FIG.

連結機構１００は、第１部材１１０と、第２部材１２０と、第３部材１３０と、第４部材１４０と、第５部材１５０と、付勢機構１６０とを備えている。第１部材１１０、第２部材１２０、第３部材１３０、第４部材１４０、第５部材１５０、付勢機構１６０は、ステンレス等の金属から形成することができる。 The connecting mechanism 100 includes a first member 110, a second member 120, a third member 130, a fourth member 140, a fifth member 150, and an urging mechanism 160. The first member 110, the second member 120, the third member 130, the fourth member 140, the fifth member 150, and the urging mechanism 160 can be formed of a metal such as stainless steel.

第１部材１１０は、中心軸線Ｂを有する段付きロッド状に形成されている。方向Ａおよび中心軸線Ｂは、互いに平行である。第１部材１１０の一端１１１は、図４に示すように、リング部１１０ａの内側にボール１１０ｂが嵌合している。ボール１１０ｂは、貫通穴１１０ｃを画定している。リング部１１０ａとボール１１０ｂとの間には不図示の低摩擦材が介在し、ボール１１０ｂはリング部１１０ａ内であらゆる方向に摺動回転可能に構成されている。図４に示すように、第１部材１１０の一端１１１は、貫通穴１１０ｃに第１連結部位２２１を挿入し、雌ネジ２２１ａにノブボルト１７０のネジ軸１７０ａを螺合することで、第１連結部位２２１に結合される。これにより、自転車２００とリヤカー３００の一体的な走行を可能としつつ、自転車２００とリヤカー３００との間の相対的な角度の変化を可能としている。また、このような連結手段を採用することで、使用者はノブボルト１７０を操作して、自転車２００へのリヤカー３００の着脱を容易に行うことができる。 The first member 110 is formed in a stepped rod shape having a central axis B. Direction A and central axis B are parallel to each other. As shown in FIG. 4, one end 111 of the first member 110 has a ball 110b fitted inside the ring portion 110a. The ball 110b defines a through hole 110c. A low friction material (not shown) is interposed between the ring portion 110a and the ball 110b, and the ball 110b is configured to be slidable and rotatable in all directions within the ring portion 110a. As shown in FIG. 4, one end 111 of the first member 110 is a first connecting portion by inserting the first connecting portion 221 into the through hole 110c and screwing the screw shaft 170a of the knob bolt 170 into the female screw 221a. Combined with 221. This enables the bicycle 200 and the rear car 300 to travel integrally, while allowing the relative angle between the bicycle 200 and the rear car 300 to change. Further, by adopting such a connecting means, the user can easily attach / detach the rear car 300 to / from the bicycle 200 by operating the knob bolt 170.

第１部材１１０は、一端１１１から方向Ａの前側から順に、小径部１１２と、大径部１１３と備えている。一端１１１、小径部１１２、及び大径部１１３は、中心軸線Ｂを中心として形成されている。第１部材１１０の他端１１４には、大径部１１３の断面直径上に、中心軸線Ｂに沿って切込み部１１５が、備えられている。この切込み部１１５は、第４部材１４０の一端１４１の取付け部位に対応する。 The first member 110 includes a small diameter portion 112 and a large diameter portion 113 in this order from one end 111 to the front side in the direction A. One end 111, the small diameter portion 112, and the large diameter portion 113 are formed around the central axis B. The other end 114 of the first member 110 is provided with a notch 115 along the central axis B on the cross-sectional diameter of the large diameter portion 113. The cut portion 115 corresponds to the mounting portion of one end 141 of the fourth member 140.

第２部材１２０は、スリーブ状に形成されており、中心軸線Ｂを中心に形成されている。第２部材１２０は、第１部材１１０と嵌合し、第１部材１１０と中心軸線Ｂに沿って相対移動可能に構成されている。第１部材１１０は、大径部１１３と小径部１１２の一部とが第２部材１２０により囲われるように、第２部材１２０と嵌合する。第１部材１１０の切込み部１１５は、第２部材１２０の内側に位置している。一方、第１部材１１０の一端１１１は、第２部材１２０から露出する。 The second member 120 is formed in a sleeve shape, and is formed around the central axis B. The second member 120 is fitted with the first member 110 and is configured to be relatively movable along the central axis B with the first member 110. The first member 110 is fitted with the second member 120 so that the large diameter portion 113 and a part of the small diameter portion 112 are surrounded by the second member 120. The notch 115 of the first member 110 is located inside the second member 120. On the other hand, one end 111 of the first member 110 is exposed from the second member 120.

第２部材１２０は、中径部１２１を備えている。この中径部１２１の内径は、第１部材１１０の大径部１１３の径よりも小さく、かつ、小径部１１２の径よりも大きい。第１部材１１０が第２部材１２０に嵌合された状態において、第２部材１２０の中径部１２１は、小径部１１２と大径部１１３の境界付近に位置する。大径部１１３および中径部１２１の当接により、第１部材１１０および第２部材１２０の相対移動、具体的には、方向Ａにおいて、第１部材１１０が前側、第２部材１２０が後側への移動が規制される。これにより、使用者が自転車２００のペダルをこぐと、自転車２００とリヤカー３００が一体的に走行する。 The second member 120 includes a medium diameter portion 121. The inner diameter of the medium diameter portion 121 is smaller than the diameter of the large diameter portion 113 of the first member 110 and larger than the diameter of the small diameter portion 112. In a state where the first member 110 is fitted to the second member 120, the medium diameter portion 121 of the second member 120 is located near the boundary between the small diameter portion 112 and the large diameter portion 113. Due to the contact between the large diameter portion 113 and the medium diameter portion 121, the relative movement of the first member 110 and the second member 120, specifically, in the direction A, the first member 110 is on the front side and the second member 120 is on the rear side. Movement to is restricted. As a result, when the user pedals the bicycle 200, the bicycle 200 and the rear car 300 run integrally.

第２部材１２０は、第４部材１４０に嵌合される貫通孔１２２を備えている。貫通孔１２２は、細長状に形成されている。貫通孔１２２は、第１部材１１０の切込み部１１５と対向する部位（すなわち、第４部材１４０の一端１４１の取付け部位に対応する部位）に位置している。 The second member 120 includes a through hole 122 that is fitted into the fourth member 140. The through hole 122 is formed in an elongated shape. The through hole 122 is located at a portion facing the cut portion 115 of the first member 110 (that is, a portion corresponding to the attachment portion of one end 141 of the fourth member 140).

第３部材１３０は、図５に示すように、ステム状に形成される。具体的には第３部材は、中心軸線が互いに直行する第１クランプ部１３０ａと第２クランプ部１３０ｂとを一体に有する。第１クランプ部１３０ａと第２クランプ部１３０ｂは、それぞれボルト１３０ｃによって容易に締付けが可能である。第１クランプ部１３０ａは、リヤカー３００のバー３３０における第２連結部位３３１を把持する。バー３３０は、中心軸線Ｂに対して垂直となる中心軸線Ｃを中心として形成されている。第２クランプ部１３０ｂは、第２部材１２０を把持する。第２クランプ部１３０ｂによって把持される第２部材１２０の部位は、中径部１２１と貫通孔１２２との間に位置している。このように、第３部材１３０は、第２連結部位３３１と第２部材１２０とを連結可能に構成されている。従って、自転車２００は、連結機構１００の第１部材１１０、第２部材１２０、および第３部材１３０を介して、リヤカー３００と連結される。 As shown in FIG. 5, the third member 130 is formed in a stem shape. Specifically, the third member integrally has a first clamp portion 130a and a second clamp portion 130b whose central axes are orthogonal to each other. The first clamp portion 130a and the second clamp portion 130b can be easily tightened by bolts 130c, respectively. The first clamp portion 130a grips the second connecting portion 331 in the bar 330 of the rear car 300. The bar 330 is formed around the central axis C, which is perpendicular to the central axis B. The second clamp portion 130b grips the second member 120. The portion of the second member 120 gripped by the second clamp portion 130b is located between the medium diameter portion 121 and the through hole 122. In this way, the third member 130 is configured so that the second connecting portion 331 and the second member 120 can be connected. Therefore, the bicycle 200 is connected to the rear car 300 via the first member 110, the second member 120, and the third member 130 of the connecting mechanism 100.

第４部材１４０は、長方形のプレート状に形成されている。第４部材１４０の一端１４１は、第１部材１１０の切込み部１１５に挟み込まれるように取付けられている。第４部材１４０の取り付けは、例えば、第２部材１２０に形成した不図示の貫通孔からボルトを通して、大径部１１３に形成した不図示の雌ネジ部にボルトを螺合することにより行うことができる。第４部材１４０は、一端１４１を支点として、中心軸線Ｂに直交する中心軸線Ｄまわりに、第１部材１１０に対し回動可能に構成される。第４部材１４０の一端１４１は、第１部材１１０とともに、第２部材１２０に囲われるように配置される。 The fourth member 140 is formed in the shape of a rectangular plate. One end 141 of the fourth member 140 is attached so as to be sandwiched between the cut portion 115 of the first member 110. The fourth member 140 can be attached, for example, by passing a bolt through a through hole (not shown) formed in the second member 120 and screwing the bolt into a female screw portion (not shown) formed in the large diameter portion 113. can. The fourth member 140 is configured to be rotatable with respect to the first member 110 around the central axis D orthogonal to the central axis B with one end 141 as a fulcrum. One end 141 of the fourth member 140 is arranged together with the first member 110 so as to be surrounded by the second member 120.

第４部材１４０は、第１部材１１０が第２部材１２０に嵌合された状態において、第２部材１２０の貫通孔１２２と嵌合している。第４部材１４０の他端１４２は、第２部材１２０から露出している。他端１４２には、ワイヤ３４１の一端３４１ａが固定される。ワイヤ３４１の取付けおよび取外しが容易となるよう、一端３４１ａは、タイコを取り付け、第４部材１４０の他端１４２は、このタイコと係合可能な形状とすることが好ましい。 The fourth member 140 is fitted to the through hole 122 of the second member 120 in a state where the first member 110 is fitted to the second member 120. The other end 142 of the fourth member 140 is exposed from the second member 120. One end 341a of the wire 341 is fixed to the other end 142. It is preferable that one end 341a has a tyco attached and the other end 142 of the fourth member 140 has a shape capable of engaging with the tyco so that the wire 341 can be easily attached and detached.

第５部材１５０は、２つの長方形のプレートで構成されていて、固定プレート１５０ａと、リンクプレート１５０ｂとを備えている。固定プレート１５０ａとリンクプレート１５０ｂは、相互に片側で接続されている。固定プレート１５０ａの一端１５１（すなわち、第５部材１５０の一端１５１）は、第２部材１２０に取付けられており、固定プレート１５０ａは第２部材１２０と一体的に移動可能に構成されている。リンクプレート１５０ｂの他端１５２（すなわち、第５部材１５０の他端１５２）は、第４部材１４０に接続されている。この他端１５２の取付け部位は、第４部材１４０における第２部材１２０から露出している部位であって、第４部材１４０の一端１４１および他端１４２の間に位置している。このように、第５部材１５０は、一端１５１および他端１５２の間にリンク機構を構成する。 The fifth member 150 is composed of two rectangular plates, and includes a fixing plate 150a and a link plate 150b. The fixing plate 150a and the link plate 150b are connected to each other on one side. One end 151 of the fixing plate 150a (that is, one end 151 of the fifth member 150) is attached to the second member 120, and the fixing plate 150a is configured to be movable integrally with the second member 120. The other end 152 of the link plate 150b (that is, the other end 152 of the fifth member 150) is connected to the fourth member 140. The attachment portion of the other end 152 is a portion of the fourth member 140 exposed from the second member 120, and is located between one end 141 and the other end 142 of the fourth member 140. As described above, the fifth member 150 constitutes a link mechanism between one end 151 and the other end 152.

付勢機構１６０としては、コイルスプリングを用いることが好ましい。第２部材１２０は、第１部材１１０の他端１１４側を封止する蓋部材１２３を備えており、付勢機構１６０は、他端１１４および蓋部材１２３の間に介装されている。付勢機構１６０は、第１部材１１０を前方に、第２部材１２０を後方に付勢する。これにより、第１部材１１０と第２部材１２０の相対移動が制限され、適切な制動力を設定することができる。好ましくは、蓋部材１２３の外周面に雄ネジを形成し、第２部材１２０の外側に露出する蓋部材１２３の面に六角ナット等を固着させ、第２部材１２０の後方側端部の内周面に所定の範囲にわたって雌ネジを形成する。これにより、六角ナット等を用いて蓋部材１２３を回転させて第２部材１２０の雌ネジと蓋部材１２３の雄ネジを螺合させ、蓋部材１２３の位置を調整することができ、付勢機構１６０の付勢力を調整することができる。 It is preferable to use a coil spring as the urging mechanism 160. The second member 120 includes a lid member 123 that seals the other end 114 side of the first member 110, and the urging mechanism 160 is interposed between the other end 114 and the lid member 123. The urging mechanism 160 urges the first member 110 to the front and the second member 120 to the rear. As a result, the relative movement of the first member 110 and the second member 120 is restricted, and an appropriate braking force can be set. Preferably, a male screw is formed on the outer peripheral surface of the lid member 123, a hexagon nut or the like is fixed to the surface of the lid member 123 exposed to the outside of the second member 120, and the inner circumference of the rear end portion of the second member 120 is fixed. A female screw is formed on the surface over a predetermined range. As a result, the lid member 123 can be rotated using a hexagon nut or the like to screw the female screw of the second member 120 and the male screw of the lid member 123, and the position of the lid member 123 can be adjusted. The urging force of 160 can be adjusted.

図６は、本発明の第１実施形態に係る連結機構１００の作動を説明するための図である。自転車２００が、方向Ａに走行しており、かつ、減速しない状態においては、連結機構１００を介して、リヤカー３００が牽引される。この場合、連結機構１００においては、第１部材１１０の大径部１１３および第２部材１２０の中径部１２１が当接している。第１部材１１０および第２部材１２０は相対移動せず、図２に示す状態が維持される。このとき、ワイヤ３４１に関する作動が生じないため、リヤカー３００の制動機構３４０は作動しない（図６の破線部を参照）。 FIG. 6 is a diagram for explaining the operation of the connecting mechanism 100 according to the first embodiment of the present invention. When the bicycle 200 is traveling in the direction A and does not decelerate, the rear car 300 is towed via the connecting mechanism 100. In this case, in the connecting mechanism 100, the large diameter portion 113 of the first member 110 and the medium diameter portion 121 of the second member 120 are in contact with each other. The first member 110 and the second member 120 do not move relative to each other, and the state shown in FIG. 2 is maintained. At this time, since the operation related to the wire 341 does not occur, the braking mechanism 340 of the rear car 300 does not operate (see the broken line portion in FIG. 6).

自転車２００の減速時においては、第１部材１１０は、自転車２００と一体的に移動する。一方、第２部材１２０および第３部材１３０は、リヤカー３００と一体的に移動する。したがって、この場合、リヤカー３００の慣性力により、第２部材１２０は、付勢機構１６０による付勢力に抗して、第１部材１１０に対して方向Ａに相対移動する。第２部材１２０に固定されている第５部材１５０は、第１部材１１０に対して方向Ａに相対移動する。第５部材１５０が方向Ａに相対移動するのに応じて、第４部材１４０が回動する。このとき、第５部材１５０の他端１５２が力点、第４部材１４０の一端１４１が支点、第４部材１４０の他端１４２が作用点となって、第４部材１４０が、第１部材１１０に対して方向Ａに回動する。第４部材１４０が回動するのに応じて、ワイヤ３４１の一端３４１ａが、方向Ａへ引っ張られる。これにより、リヤカー３００の制動機構３４０が作動し、リヤカー３００の車輪３２０が制動される。 When the bicycle 200 is decelerated, the first member 110 moves integrally with the bicycle 200. On the other hand, the second member 120 and the third member 130 move integrally with the rear car 300. Therefore, in this case, due to the inertial force of the rear car 300, the second member 120 moves relative to the first member 110 in the direction A against the urging force of the urging mechanism 160. The fifth member 150 fixed to the second member 120 moves relative to the first member 110 in the direction A. As the fifth member 150 moves relative to the direction A, the fourth member 140 rotates. At this time, the other end 152 of the fifth member 150 serves as a power point, the one end 141 of the fourth member 140 serves as a fulcrum, the other end 142 of the fourth member 140 serves as an action point, and the fourth member 140 becomes the first member 110. On the other hand, it rotates in the direction A. As the fourth member 140 rotates, one end 341a of the wire 341 is pulled in the direction A. As a result, the braking mechanism 340 of the rear car 300 is activated, and the wheels 320 of the rear car 300 are braked.

以上、本発明の第１実施形態に係る連結機構１００によれば、自転車２００の減速時における第１部材１１０および第２部材１２０の相対移動に基づいて、制動機構３４０を作動させてリヤカー３００が制動され得る。加えて、制動機構が連結機構１００とリヤカー３００内で完結し、自転車に固定されるワイヤ等が存在しないため、第１連結部位２２１から連結機構１００を取り外すことで、連結されている自転車２００およびリヤカー３００を、それぞれ容易に分離することができる。 As described above, according to the connecting mechanism 100 according to the first embodiment of the present invention, the rear car 300 operates the braking mechanism 340 based on the relative movement of the first member 110 and the second member 120 when the bicycle 200 is decelerated. Can be braked. In addition, since the braking mechanism is completed in the connecting mechanism 100 and the rear car 300 and there is no wire or the like fixed to the bicycle, the connecting mechanism 100 is removed from the first connecting portion 221 to connect the bicycle 200 and the bicycle. The rear cars 300 can be easily separated from each other.

（第２実施形態）
次に、本発明による連結機構の第２実施形態を説明する。図７は、本発明の第２実施形態に係る連結機構１００の構成図である。図８は、本発明の第２実施形態に係る連結機構１００を構成する各部材を説明するための図である。この第２実施形態は、連結機構１００の第１部材１１０の構成、第４部材１４０の取付け位置、および第５部材１５０の構成のみ、上記第１実施形態と異なる。以下、第２実施形態の上記第１実施形態と異なる点を説明する。 (Second Embodiment)
Next, a second embodiment of the connecting mechanism according to the present invention will be described. FIG. 7 is a block diagram of the connecting mechanism 100 according to the second embodiment of the present invention. FIG. 8 is a diagram for explaining each member constituting the connecting mechanism 100 according to the second embodiment of the present invention. This second embodiment differs from the first embodiment only in the configuration of the first member 110 of the connecting mechanism 100, the mounting position of the fourth member 140, and the configuration of the fifth member 150. Hereinafter, the differences from the first embodiment of the second embodiment will be described.

第１部材１１０は、更に第２小径部１１６を備えている。第２小径部１１６は、中心軸線Ｂを中心として形成され、その一端が大径部１１３の端部に結合されている。第１部材１１０が第２部材１２０に嵌合された状態において、第２小径部１１６は、付勢機構１６０および第２部材１２０の蓋部材１２３を貫通するように配置されている。第２小径部１１６の他端１１６ａ（すなわち、第１部材１１０の一端１１１と反対側の他端１１６ａ）は、第２部材１２０から露出するように構成されている。第１部材１１０における他端１１６ａは、第４部材１４０の一端１４１が取り付けられるように構成されている。 The first member 110 further includes a second small diameter portion 116. The second small diameter portion 116 is formed around the central axis B, and one end thereof is connected to the end portion of the large diameter portion 113. In a state where the first member 110 is fitted to the second member 120, the second small diameter portion 116 is arranged so as to penetrate the urging mechanism 160 and the lid member 123 of the second member 120. The other end 116a of the second small diameter portion 116 (that is, the other end 116a on the side opposite to the one end 111 of the first member 110) is configured to be exposed from the second member 120. The other end 116a of the first member 110 is configured so that one end 141 of the fourth member 140 can be attached.

第４部材１４０の一端１４１は、第２小径部１１６の他端１１６ａに取付けられている。第４部材１４０は、一端１４１を支点として、中心軸線Ｂに直交する中心軸線Ｄまわりに、第１部材１１０に対し回動可能に構成されている。一端１４１および他端１４２を含む第４部材１４０の全体が、第２部材１２０から露出している。 One end 141 of the fourth member 140 is attached to the other end 116a of the second small diameter portion 116. The fourth member 140 is configured to be rotatable with respect to the first member 110 around the central axis D orthogonal to the central axis B with one end 141 as a fulcrum. The entire fourth member 140 including one end 141 and the other end 142 is exposed from the second member 120.

第５部材１５０は、Ｌ字型のプレートで構成されている。その一端１５１は、第２部材１２０に取付けられており、第２部材１２０と一体的に移動可能に構成されている。他端１５２は、第４部材１４０に接続され、他端１５２の取付け部位は、第４部材１４０の一端１４１および他端１４２の間に位置している。第４部材１４０の一端１４１と第５部材１５０の他端１５２の間の距離によっては、他端１５２を取り付ける第４部材１４０の部位には、第４部材１４０の長手方向に延びる長孔を形成し、長孔を通したボルトによって第５部材１５０の他端１５２と第４部材１４０を接続しても良い。 The fifth member 150 is composed of an L-shaped plate. One end 151 thereof is attached to the second member 120, and is configured to be movable integrally with the second member 120. The other end 152 is connected to the fourth member 140, and the attachment portion of the other end 152 is located between one end 141 and the other end 142 of the fourth member 140. Depending on the distance between one end 141 of the fourth member 140 and the other end 152 of the fifth member 150, a long hole extending in the longitudinal direction of the fourth member 140 is formed in the portion of the fourth member 140 to which the other end 152 is attached. Then, the other end 152 of the fifth member 150 and the fourth member 140 may be connected by a bolt that has passed through the elongated hole.

図９は、本発明の第２実施形態に係る連結機構１００の作動を説明するための図である。自転車２００の減速時においては、上記第１実施形態と同様に、リヤカー３００の慣性力により、第２部材１２０は、第１部材１１０に対して方向Ａに相対移動する。第２部材１２０に固定されている第５部材１５０は、第１部材１１０に対して方向Ａに相対移動する。第５部材１５０が方向Ａに相対移動するのに応じて、第４部材１４０が回動する。第５部材１５０の他端１５２が力点、第４部材１４０の一端１４１が支点、第４部材１４０の他端１４２が作用点となって、第４部材１４０が、第１部材１１０に対して方向Ａに回動する。第４部材１４０の他端１４２も、同様に方向Ａに回動するのに応じて、ワイヤ３４１の一端３４１ａが、方向Ａへ引っ張られる。これにより、リヤカー３００の制動機構３４０が作動し、リヤカー３００の車輪３２０が制動される。 FIG. 9 is a diagram for explaining the operation of the connecting mechanism 100 according to the second embodiment of the present invention. When the bicycle 200 is decelerated, the second member 120 moves relative to the first member 110 in the direction A due to the inertial force of the rear car 300, as in the first embodiment. The fifth member 150 fixed to the second member 120 moves relative to the first member 110 in the direction A. As the fifth member 150 moves relative to the direction A, the fourth member 140 rotates. The other end 152 of the fifth member 150 is a force point, one end 141 of the fourth member 140 is a fulcrum, the other end 142 of the fourth member 140 is a point of action, and the fourth member 140 is directed with respect to the first member 110. Rotate to A. Similarly, at the other end 142 of the fourth member 140, one end 341a of the wire 341 is pulled in the direction A in response to the rotation in the direction A. As a result, the braking mechanism 340 of the rear car 300 is activated, and the wheels 320 of the rear car 300 are braked.

以上、本発明の第２実施形態に係る連結機構１００によれば、上記第１実施形態と同様に、リヤカー３００が制動され得る。加えて、上記第１実施形態と同様に、制動機構が連結機構１００とリヤカー３００内で完結し、自転車に固定されるワイヤ等が存在しないため、第１連結部位２２１から連結機構１００を取り外すことで、連結されている自転車２００およびリヤカー３００を、それぞれ容易に分離することができる。 As described above, according to the connecting mechanism 100 according to the second embodiment of the present invention, the rear car 300 can be braked as in the first embodiment. In addition, as in the first embodiment, since the braking mechanism is completed in the connecting mechanism 100 and the rear car 300 and there is no wire or the like fixed to the bicycle, the connecting mechanism 100 is removed from the first connecting portion 221. The connected bicycle 200 and the rear car 300 can be easily separated from each other.

（第３実施形態）
次に、本発明による連結機構の第３実施形態を説明する。図１０は、本発明の第３実施形態に係る連結機構１００が適用された自転車２００およびリヤカー３００の構成図であり、図１に対応している。 (Third Embodiment)
Next, a third embodiment of the connecting mechanism according to the present invention will be described. FIG. 10 is a configuration diagram of a bicycle 200 and a rear car 300 to which the connecting mechanism 100 according to the third embodiment of the present invention is applied, and corresponds to FIG. 1.

この第３実施形態は、上記第１、第２実施形態の第４部材１４０および第５部材１５０を備えておらず、また、制動機構３４０の構成とワイヤ３４１の作動、連結機構１００の第１部材１１０の構成、および付勢機構１６０の介装位置のみ、上記第１、第２実施形態と異なる。以下、第３実施形態の上記第１、第２実施形態と異なる点を説明する。 This third embodiment does not include the fourth member 140 and the fifth member 150 of the first and second embodiments, the configuration of the braking mechanism 340, the operation of the wire 341, and the first connection mechanism 100. Only the configuration of the member 110 and the interposition position of the urging mechanism 160 are different from the first and second embodiments. Hereinafter, the differences from the first and second embodiments of the third embodiment will be described.

リヤカー３００のバー３３０は、中空状に形成されている。バー３３０の両端３３０ａより、制動機構３４０のワイヤ３４１が、中空部へ侵入可能となっている。バー３３０は、第２連結部位３３１の両隣に２つの孔３３０ｂを備えている。ワイヤ３４１は、バー３３０の両端３３０ａから中空部を連通しつつ、孔３３０ｂから露出するようになっている。孔３３０ｂから露出しているワイヤ３４１の一端３４１ａは、連結機構１００の第１部材１１０に取付けられている。 The bar 330 of the rear car 300 is formed in a hollow shape. The wire 341 of the braking mechanism 340 can enter the hollow portion from both ends 330a of the bar 330. The bar 330 is provided with two holes 330b on both sides of the second connecting portion 331. The wire 341 is exposed from the hole 330b while communicating the hollow portion from both ends 330a of the bar 330. One end 341a of the wire 341 exposed from the hole 330b is attached to the first member 110 of the connecting mechanism 100.

図１１は、本発明の第３実施形態に係る連結機構１００の構成図である。図１２は、本発明の第３実施形態に係る連結機構１００を構成する各部材を説明するための図である。第１部材１１０は、小径部１１２が第２部材１２０により囲われるように、第２部材１２０と嵌合している。第２部材１２０の蓋部材１２３には、中心軸線Ｂを中心とする貫通孔（中径部１２１に相当する）が備えられている。第１部材１１０が第２部材１２０に嵌合された状態において、第１部材１１０の小径部１１２は、この貫通孔を貫通して、一端１１１と反対側の他端側にて第２部材１２０から露出するようになっている。 FIG. 11 is a block diagram of the connecting mechanism 100 according to the third embodiment of the present invention. FIG. 12 is a diagram for explaining each member constituting the connecting mechanism 100 according to the third embodiment of the present invention. The first member 110 is fitted to the second member 120 so that the small diameter portion 112 is surrounded by the second member 120. The lid member 123 of the second member 120 is provided with a through hole (corresponding to the medium diameter portion 121) centered on the central axis B. In a state where the first member 110 is fitted to the second member 120, the small diameter portion 112 of the first member 110 penetrates the through hole and the second member 120 is on the other end side opposite to one end 111. It is designed to be exposed from.

第１部材１１０は、小径部１１２の他端側にて、中心軸線Ｂを中心として形成された大径部１１３と結合している。すなわち、本実施形態においては、第１部材１１０の他端に、大径部１１３が形成されている。蓋部材１２３の貫通孔の径は、小径部１１２の径よりも大きく、かつ、大径部１１３の径よりも小さい。本実施形態においては、蓋部材１２３の貫通孔部が、中径部１２１の役割を果たす。なお、第１部材１１０の大径部も、第１部材１１０が第２部材１２０に嵌合された状態において、第２部材１２０から露出するようになっている。この大径部１１３の両端１１３ａに、ワイヤ３４１の一端３４１ａの取付け部位が備えられている。 The first member 110 is coupled to the large diameter portion 113 formed around the central axis B at the other end side of the small diameter portion 112. That is, in the present embodiment, the large diameter portion 113 is formed at the other end of the first member 110. The diameter of the through hole of the lid member 123 is larger than the diameter of the small diameter portion 112 and smaller than the diameter of the large diameter portion 113. In the present embodiment, the through hole portion of the lid member 123 serves as the medium diameter portion 121. The large diameter portion of the first member 110 is also exposed from the second member 120 in a state where the first member 110 is fitted to the second member 120. Both ends 113a of the large diameter portion 113 are provided with attachment portions for one end 341a of the wire 341.

第３部材１３０は、リヤカー３００のバー３３０（すなわち、第２連結部位３３１）と、第２部材１２０とを結合している。第３部材１３０により、バー３３０は、第１部材１１０の大径部１１３（すなわち、第１部材１１０の他端）よりも、方向Ａ側（すなわち、自転車２００の走行方向側）に配置されている。従って、バー３３０の２つの孔３３０ｂは、ワイヤ３４１の一端３４１ａの取付け部位よりも、方向Ａ側に配置されることになる。 The third member 130 connects the bar 330 of the rear car 300 (that is, the second connecting portion 331) and the second member 120. By the third member 130, the bar 330 is arranged on the direction A side (that is, the traveling direction side of the bicycle 200) with respect to the large diameter portion 113 of the first member 110 (that is, the other end of the first member 110). There is. Therefore, the two holes 330b of the bar 330 are arranged on the direction A side of the attachment portion of one end 341a of the wire 341.

付勢機構１６０は、第１部材１１０の小径部１１２に貫通されるとともに、第２部材１２０の外側にて、第１部材１１０の一端１１１および第２部材１２０の間に介装されている。 The urging mechanism 160 is penetrated through the small diameter portion 112 of the first member 110, and is interposed between one end 111 of the first member 110 and the second member 120 on the outside of the second member 120.

図１３は、本発明の第３実施形態に係る連結機構１００の作動を説明するための図である。自転車２００の減速時においては、リヤカー３００の慣性力により、バー３３０は、第２部材１２０と一体的に、付勢機構１６０の付勢力に抗して、第１部材１１０に対して方向Ａに相対移動する。このバー３３０の移動に応じて、ワイヤ３４１の一端３４１ａが方向Ａとは逆の方向へ引っ張られる。これにより、リヤカー３００の制動機構３４０が作動し、リヤカー３００の車輪３２０が制動される。 FIG. 13 is a diagram for explaining the operation of the connecting mechanism 100 according to the third embodiment of the present invention. During deceleration of the bicycle 200, due to the inertial force of the rear car 300, the bar 330 is integrated with the second member 120 in the direction A with respect to the first member 110 against the urging force of the urging mechanism 160. Move relative to each other. In response to the movement of the bar 330, one end 341a of the wire 341 is pulled in the direction opposite to the direction A. As a result, the braking mechanism 340 of the rear car 300 is activated, and the wheels 320 of the rear car 300 are braked.

以上、本発明の第３実施形態に係る連結機構１００によれば、上記第１、第２実施形態と同様に、リヤカー３００が制動され得る。加えて、上記第１、第２実施形態と同様に、制動機構が連結機構１００とリヤカー３００内で完結し、自転車に固定されるワイヤ等が存在しないため、第１連結部位２２１から連結機構１００を取り外すことで、連結されている自転車２００およびリヤカー３００を、それぞれ容易に分離することができる。 As described above, according to the connecting mechanism 100 according to the third embodiment of the present invention, the rear car 300 can be braked as in the first and second embodiments. In addition, as in the first and second embodiments, the braking mechanism is completed in the connecting mechanism 100 and the rear car 300, and there is no wire or the like fixed to the bicycle. Therefore, the connecting mechanism 100 is connected from the first connecting portion 221. By removing the bicycle 200 and the rear car 300, the connected bicycle 200 and the rear car 300 can be easily separated from each other.

なお、本発明による連結機構における構成要素の形状、材料等は、特許請求の範囲のものであればよく、上記各実施形態のものに限定されない。 The shapes, materials, and the like of the components in the connecting mechanism according to the present invention may be as long as they are within the scope of the claims, and are not limited to those of each of the above embodiments.

１００…連結機構、２００…自転車、２２１…第１連結部位、３００…リヤカー、３３０…バー、３３１…第２連結部位、３４０…制動機構、３４１…ワイヤ、１１０…第１部材、１１２…小径部、１１３…大径部、１２０…第２部材、１２１…中径部、１３０…第３部材、１４０…第４部材、１４２…第４部材の他端、１５０…第５部材、１６０…付勢機構 100 ... connecting mechanism, 200 ... bicycle, 221 ... first connecting part, 300 ... rear car, 330 ... bar, 331 ... second connecting part, 340 ... braking mechanism, 341 ... wire, 110 ... first member, 112 ... small diameter part , 113 ... large diameter part, 120 ... second member, 121 ... medium diameter part, 130 ... third member, 140 ... fourth member, 142 ... other end of fourth member, 150 ... fifth member, 160 ... urging mechanism

Claims

The first connecting part located at the rear of the bicycle in the running direction of the bicycle,
A rear car arranged behind the bicycle in the traveling direction, and a second connecting portion located at the front portion of the rear car that can be braked by the operation of the braking mechanism provided in the rear car, are connected to each other.
A connecting mechanism configured so that the rear car can travel integrally with the bicycle in response to the propulsion of the bicycle.
A first member having one end configured to be connectable to the first connecting portion,
A second member configured to be relatively movable along the axial direction with the first member within a predetermined range, and
A third member configured to be able to connect the second connecting portion and the second member,
Equipped with
A connecting mechanism configured to operate the braking mechanism to brake the rear car based on the relative movement of the first member and the second member during deceleration of the bicycle.

In the coupling mechanism according to claim 1,
The braking mechanism of the rear car is
A wire is provided, and the rear car is configured to be braked in response to a pull of one end of the wire with respect to the rear car in the traveling direction.
One end is attached to the first member, the one end is used as a fulcrum, and the wire is rotatably configured with respect to the first member around an axis orthogonal to the axis of the first member, and the other end of the wire. A fourth member configured so that one end can be attached, and
A fifth member, one end of which is attached to the second member so as to be movable integrally with the second member, and the other end of which the fourth member is attached.
Further prepare
When the bicycle is decelerated, the fifth member moves in the same direction as the relative movement of the second member with respect to the first member, and the fourth member moves in response to the movement of the fifth member. The second member rotates in the same direction as the relative movement of the second member with respect to the first member, and one end of the wire is pulled in the traveling direction in response to the rotation of the fourth member. A connecting mechanism configured to brake the rear car.

In the coupling mechanism according to claim 2,
The first member is fitted with the second member, and one end connected to the first connecting portion is configured to be exposed from the second member and is fitted with the second member. In the region, it is configured to include a mounting site at one end of the fourth member.
The second member is
A through hole fitted to the fourth member is configured to be provided in a portion of the first member corresponding to the attachment portion of the one end of the fourth member.
The fourth member is
The second member is surrounded by the second member together with the first member, and the other end attached to the one end of the wire is exposed from the second member. It is configured to fit into the through hole of the
The fifth member is
The other end attached to the fourth member is located between the one end of the fourth member and the other end of the fourth member, and the one end attached to the second member and the fourth member. A coupling mechanism configured to include a link mechanism between the other ends to be mounted.

In the coupling mechanism according to claim 2,
The first member is configured to be fitted with the second member so that one end connected to the first connecting portion and the other end opposite to the one end are exposed from the second member. At the same time, at the other end of the first member, the attachment portion of the one end of the fourth member is provided.
The fourth member is
The one end attached to the first member and the other end attached to the one end of the wire are configured to be exposed from the second member.
The fifth member is
A connecting mechanism configured such that the other end attached to the fourth member is located between the one end of the fourth member and the other end of the fourth member.

In the coupling mechanism according to claim 1,
The rear car
A hollow bar having a hole at a predetermined position is provided in the front portion in the traveling direction, and the second connecting portion is configured to be located in the bar.
The braking mechanism of the rear car is
A wire is provided, and while the wire communicates with the hollow portion of the bar, one end of the wire is exposed from the hole of the bar, and the one end of the wire is in a direction opposite to the traveling direction with respect to the rear car. The rear car is configured to be braked in response to a pull to
The first member is
Located at the other end, a small diameter portion that fits with the second member so as to be surrounded by the second member, the one end connected to the first connecting portion, the other end opposite to the one end, and the other end. The large diameter portion is configured to be exposed from the second member, and the other end of the first member is configured to include a mounting portion of the one end of the wire.
The third member is
The bar of the rear car is configured to be connectable to the second member so as to be arranged on the traveling direction side of the other end of the first member.
When the bicycle is decelerated, the bar moves in the same direction as the relative movement of the second member with respect to the first member, and in response to the movement of the bar, one end of the wire is in the traveling direction. A connecting mechanism configured to brake the rear car by being pulled in the opposite direction.

The connecting mechanism according to any one of claims 1 to 5.
A connecting mechanism further provided with an urging mechanism that elastically urges drag against the relative movement of the first member and the second member during deceleration of the bicycle.