JP6893729B2 - Bicycle that meanders in conjunction with pedal drive - Google Patents

Bicycle that meanders in conjunction with pedal drive Download PDF

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JP6893729B2
JP6893729B2 JP2017076294A JP2017076294A JP6893729B2 JP 6893729 B2 JP6893729 B2 JP 6893729B2 JP 2017076294 A JP2017076294 A JP 2017076294A JP 2017076294 A JP2017076294 A JP 2017076294A JP 6893729 B2 JP6893729 B2 JP 6893729B2
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秋元 直人
直人 秋元
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直人 秋元
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Description

本発明は二輪の自転車に関する。 The present invention relates to a two-wheeled bicycle.

車輪の付いた乗り物を人力で駆動する方法には自転車のようにペダルを踏む力を駆動軸の回転する力にする方法とローラースケートのように車輪を進行方向に対して左右に振り蛇行運転しながら推進する方法(例えば特許文献1参照)などがある。 There are two ways to manually drive a vehicle with wheels: a method of using the force of pedaling as a bicycle to rotate the drive shaft, and a method of swinging the wheels left and right with respect to the direction of travel like roller skates. There is a method of promoting the wheel (see, for example, Patent Document 1).

前部にハンドル付き舵取りの前輪を備えた自転車で坂を上る時には前ハンドルを左右に振り蛇行運転することで見かけの勾配が低減され登坂性能を向上させる漕ぎ方がある。 When climbing a hill with a bicycle equipped with a steering wheel at the front, there is a way of rowing that reduces the apparent slope and improves hill climbing performance by swinging the front handle to the left and right and meandering.

特開平11−171077Japanese Patent Application Laid-Open No. 11-171077

前部にハンドル付き舵取りの前輪を備え、後部にペダル付きの駆動軸のある後輪を持つ二輪の自転車では、後輪は進行方向と平行に固定されているため、登坂時には前輪はハンドルを左右に振ることで蛇行運転し登坂性能を向上させることができるが、後輪は進行方向と平行に固定されているため、前輪に追従する形でしか蛇行運転できない。 In a two-wheeled bicycle with a steering wheel front wheel at the front and a rear wheel with a drive shaft with pedals at the rear, the rear wheels are fixed parallel to the direction of travel, so the front wheels move the steering wheel left and right when climbing a slope. You can improve the climbing performance by swinging to, but since the rear wheels are fixed parallel to the direction of travel, you can only meander by following the front wheels.

本発明品は上記課題を解決するために、前部にハンドル付き舵取りの前輪を備え、後部にペダル付きの駆動軸を持つ二輪の自転車において、車体フレーム後方に後輪とペダルを弾性素材を備えた回転機構で連結したのである。 In order to solve the above problems, the product of the present invention is a two-wheeled bicycle having a steering wheel with a front wheel at the front and a drive shaft with a pedal at the rear, and the rear wheel and the pedal are provided with an elastic material behind the body frame. It was connected by a rotating mechanism.

上記第1の課題解決手段による作用は次の通りである。ペダルを駆動すると後輪は進行方向に駆動回転すると同時に、前輪と後輪の接地点を結ぶ直線から左右に離れて設置されたペダルを踏む力は、踏んだ方の右側または左側に車体全体を倒そうとする力にもなっている。後輪とペダルを車体フレームに固定せずに車体フレームの後方に弾性素材を備えた回転機構を設置することで、ペダルを踏んだ時に発生している車体全体を倒そうとする力に応じて後輪とペダルを進行方向に対して左右に回転させるのに利用できるのである。 The action of the first problem-solving means is as follows. When the pedal is driven, the rear wheels drive and rotate in the direction of travel, and at the same time, the force to step on the pedal installed away from the straight line connecting the grounding points of the front and rear wheels is applied to the right or left side of the entire vehicle body. It is also a force to defeat. By installing a rotation mechanism with elastic material behind the body frame without fixing the rear wheels and pedals to the body frame, it responds to the force generated when the pedals are stepped on to knock down the entire body. It can be used to rotate the rear wheels and pedals left and right with respect to the direction of travel.

上述したように本発明品は、後輪が回転駆動と同時にペダルを左右踏み込むのと同期して左右に振れることで蛇行運転する。蛇行運転することで登坂時の見かけの勾配を低減できるため、登坂性能が向上する。 As described above, the product of the present invention meanders by swinging left and right in synchronization with the left and right depression of the pedal at the same time as the rear wheels are rotationally driven. By meandering, the apparent slope when climbing a slope can be reduced, and the climbing performance is improved.

本発明品の第1実施の形態の全体の側面図Overall side view of the first embodiment of the product of the present invention 同後輪の地面から縦方向の回転機構の平面図Top view of the rotation mechanism of the rear wheels in the vertical direction from the ground 同後輪の地面から縦方向の回転機構のバネ制動付き平面図Top view with spring braking of the rotation mechanism in the vertical direction from the ground of the rear wheels 同後輪の地面から縦方向の回転機構が弾性素材で構成された平面図Top view of the rear wheels whose vertical rotation mechanism from the ground is made of elastic material 同第2実施の形態の全体の側面図Overall side view of the second embodiment

以下、図面に基づき本発明の好適な実施形態を説明する。図1は本発明の第1の実施の形態を示している。 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a first embodiment of the present invention.

第1の実施形態の自転車は、前輪1の回転軸にフロントフォーク2が取り付けられており、前端のヘッドパイプ3にはハンドル4とフロントフォーク2が回転自在に装着してある。ハンドル4にはブレーキレバー5が2つあって、それぞれ前輪1と後輪9にワイヤーを介して接続してあり、ブレーキレバー2を引くことによってブレーキ装置を作動させて前輪1と後輪9の進行方向の回転を制動できるようにしてある。ヘッドパイプ3には前方車体フレーム10aが溶接等で取り付けてある。後方車体フレーム10の上端にはサドル11が固定されており、後端には後輪9、下端にはペダル6が装着されている。ペダル6と後輪9はチェーン7を介してペダル6の駆動力が後輪9の駆動軸8に伝わり推力となる。前方車体フレーム10aと後方車体フレーム10の間には後輪の地面から縦方向の回転機構12がある。後輪の地面から縦方向の回転機構12で回転する回転軸13は後輪の地面との接点14の前方に位置し、そこから前方に傾斜した角度に設置する。 In the bicycle of the first embodiment, the front fork 2 is attached to the rotating shaft of the front wheel 1, and the handle 4 and the front fork 2 are rotatably attached to the head pipe 3 at the front end. The handle 4 has two brake levers 5, which are connected to the front wheels 1 and the rear wheels 9 via wires, respectively. By pulling the brake lever 2, the brake device is operated to operate the front wheels 1 and the rear wheels 9. The rotation in the direction of travel can be braked. A front body frame 10a is attached to the head pipe 3 by welding or the like. A saddle 11 is fixed to the upper end of the rear body frame 10, a rear wheel 9 is attached to the rear end, and a pedal 6 is attached to the lower end. In the pedal 6 and the rear wheel 9, the driving force of the pedal 6 is transmitted to the driving shaft 8 of the rear wheel 9 via the chain 7 and becomes a thrust. Between the front body frame 10a and the rear body frame 10, there is a rotation mechanism 12 in the vertical direction from the ground of the rear wheels. The rotating shaft 13 that rotates from the ground of the rear wheels by the rotation mechanism 12 in the vertical direction is located in front of the contact point 14 of the rear wheels with the ground, and is installed at an angle inclined forward from there.

上記の後輪の地面から縦方向の回転機構12の平面図を図2に示している。図2では後輪9に直結している後方車体フレーム10が右と左にそれぞれ振れた場合の2つの状態を示している。後方車体フレーム10と前方車体フレーム10aは後輪の地面から縦方向の回転機構12に回転自由に取り付けられている。 FIG. 2 shows a plan view of the rotation mechanism 12 in the vertical direction from the ground of the rear wheel. FIG. 2 shows two states when the rear body frame 10 directly connected to the rear wheel 9 swings to the right and left, respectively. The rear body frame 10 and the front body frame 10a are freely rotatably attached to the rotation mechanism 12 in the vertical direction from the ground of the rear wheels.

ペダル6を踏んだ時の後輪9の左右の回転を制限し、合わせてペダル6を踏む力が無くなると後輪9を速やかに進行方向と平行になるよう戻すために、図3に示すように後方車体フレーム10と前方車体フレーム10aの間にバネ18等の弾性素材を設置することで実現できる。図3では後輪9に直結している後方車体フレーム10が右と左にそれぞれ振れた場合の2つの状態を示している。As shown in FIG. 3, in order to limit the left and right rotation of the rear wheel 9 when the pedal 6 is stepped on, and to quickly return the rear wheel 9 to be parallel to the traveling direction when the force to step on the pedal 6 is lost. This can be achieved by installing an elastic material such as a spring 18 between the rear body frame 10 and the front body frame 10a. FIG. 3 shows two states when the rear body frame 10 directly connected to the rear wheel 9 swings to the right and left, respectively.

ペダル6を踏んだ時の後輪9の左右の振れを完全に止めたい場合には図示はしていないが、後輪の地面から縦方向の回転機構12にブレーキ装置およびブレーキレバーを装着することで、後輪9の左右の振れを必要に応じて制動できる。 If you want to completely stop the left and right swing of the rear wheel 9 when you step on the pedal 6, although not shown, attach the brake device and brake lever to the rotation mechanism 12 in the vertical direction from the ground of the rear wheel. Then, the left-right runout of the rear wheel 9 can be braked as needed.

図4は後輪の地面から縦方向の回転機構12をゴム19等の弾性素材で構成した平面図である。図4では後輪9に直結している後方車体フレーム10が右と左にそれぞれ振れた場合の2つの状態を示している。 FIG. 4 is a plan view in which the rotation mechanism 12 in the vertical direction from the ground of the rear wheels is made of an elastic material such as rubber 19. FIG. 4 shows two states when the rear body frame 10 directly connected to the rear wheel 9 swings to the right and left, respectively.

上記構成の動作を説明する。前輪1と後輪9の接地点を結ぶ直線から左右に離れて設置されたペダル6を踏む力は、後輪9を進行方向に駆動回転すると同時に車体全体を踏んだ右側または左側に倒そうとする力にもなっている。その車体を倒そうとする力は前輪1に対してはハンドル4に支えられて無効だが後輪9に対しては回転機構12があるため後輪9を進行方向に対して左右に回転させるのである。後輪9の左右の回転角度はペダル6を踏む力に応じて大きくなるが、ばね18とゴム19がその回転角度を制限するとともにペダル6を踏む力が無くなると後輪9を速やかに進行方向と平行になるよう戻す。
これにより後輪9はペダルを踏む力に応じて後輪が左右に回転し蛇行運転することになる。
The operation of the above configuration will be described. The force of stepping on the pedal 6 installed away from the straight line connecting the ground contact points of the front wheels 1 and the rear wheels 9 drives and rotates the rear wheels 9 in the direction of travel, and at the same time tries to tilt the entire vehicle body to the right or left side. It is also a force to do. The force to tilt the vehicle body is invalid for the front wheel 1 because it is supported by the steering wheel 4, but since the rear wheel 9 has a rotation mechanism 12, the rear wheel 9 is rotated left and right with respect to the traveling direction. is there. The left and right rotation angles of the rear wheel 9 increase according to the force of stepping on the pedal 6, but when the spring 18 and the rubber 19 limit the rotation angle and the force of stepping on the pedal 6 disappears, the rear wheel 9 is swiftly moved in the direction of travel. Return it so that it is parallel to.
As a result, the rear wheels 9 rotate left and right according to the force of stepping on the pedal, and meandering operation is performed.

図5は本発明の第2の実施の形態の自転車の側面図を示すものである。 FIG. 5 shows a side view of the bicycle according to the second embodiment of the present invention.

この第2の実施の形態の自転車は、前輪1の回転軸にフロントフォーク2が取り付けられており、前端のヘッドパイプ3にはハンドル4とフロントフォーク2が回転自在に装着してある。ハンドル4にはブレーキレバー5が2つあって、それぞれ前輪1と後輪9にワイヤーを介して接続してあり、ブレーキレバー5を引くことによってブレーキ装置を作動させて前輪1と後輪9の進行方向の回転を制動できるようにしてある。ヘッドパイプ3には前方車体フレーム15が溶接等で取り付けてある。前方車体フレーム15の後端にはサドル11が固定されている。後方車体フレーム16は前端にペダル6、後端に後輪9の駆動軸8が取り付けられており、ペダル6と後輪9はチェーン7を介してペダル6の駆動力が後輪9の駆動軸8に伝わり推力となる。前方車体フレーム15と後方車体フレーム16は中央車体フレーム17でつながれている。前方車体フレーム15と後方車体フレーム16は鉄やアルミなどの硬質素材で構成されるが、中央車体フレーム17は木材や竹、グラスファイバーなどの弾性素材で構成する。 In the bicycle of the second embodiment, the front fork 2 is attached to the rotating shaft of the front wheel 1, and the handle 4 and the front fork 2 are rotatably attached to the head pipe 3 at the front end. The handle 4 has two brake levers 5, which are connected to the front wheels 1 and the rear wheels 9 via wires, respectively. By pulling the brake lever 5, the brake device is operated to operate the front wheels 1 and the rear wheels 9. The rotation in the direction of travel can be braked. A front body frame 15 is attached to the head pipe 3 by welding or the like. A saddle 11 is fixed to the rear end of the front body frame 15. The rear body frame 16 has a pedal 6 attached to the front end and a drive shaft 8 of the rear wheel 9 attached to the rear end. It is transmitted to 8 and becomes thrust. The front body frame 15 and the rear body frame 16 are connected by the center body frame 17. The front body frame 15 and the rear body frame 16 are made of a hard material such as iron or aluminum, while the center body frame 17 is made of an elastic material such as wood, bamboo or glass fiber.

上記構成の動作を説明する。前輪1と後輪9の接地点を結ぶ直線から左右に離れて設置されたペダル6を踏む力は、後輪9を進行方向に駆動回転すると同時に車体全体を踏んだ右側または左側に倒そうとする力にもなっている。その車体を倒そうとする力は前輪1に対してはハンドル4に支えられて無効だが後輪9に対しては中央車体フレーム17が弾性素材であるため歪みを生じ後輪9が後輪の地面との接点14を支点として進行方向に対して左右に回転するのである。後輪9の左右の回転角度はペダル6を踏む力に応じて大きくなり、ペダル6を踏む力が無くなると速やかに戻り、後輪は進行方向と平行になる。これにより後輪9はペダルを踏む力に応じて後輪が左右に振れ蛇行運転することになる。 The operation of the above configuration will be described. The force of stepping on the pedal 6 installed away from the straight line connecting the ground contact points of the front wheels 1 and the rear wheels 9 drives and rotates the rear wheels 9 in the direction of travel, and at the same time tries to tilt the entire vehicle body to the right or left side. It is also a force to do. The force to tilt the car body is invalid for the front wheel 1 because it is supported by the steering wheel 4, but for the rear wheel 9, the central car body frame 17 is made of an elastic material, which causes distortion and the rear wheel 9 is the rear wheel. It rotates left and right with respect to the traveling direction with the contact point 14 with the ground as a fulcrum. The left and right rotation angles of the rear wheels 9 increase according to the force of stepping on the pedal 6, and when the force of stepping on the pedal 6 is lost, the rear wheels return quickly and the rear wheels become parallel to the traveling direction. As a result, the rear wheels 9 swing left and right according to the force of stepping on the pedal, and meandering operation is performed.

1 前輪
2 フロントフォーク
3 ヘッドパイプ
4 ハンドル
5 ブレーキレバー
6 ペダル
7 チェーン
8 駆動軸
9 後輪
10 後方車体フレーム
10a 前方車体フレーム
11 サドル
12 後輪の地面から縦方向の回転機構
13 後輪の地面から縦方向の回転軸
14 後輪の地面との接点
15 前方車体フレーム
16 後方車体フレーム
17 中央車体フレーム
18 バネ
19 ゴム
1 Front wheel 2 Front fork 3 Head pipe 4 Handle 5 Brake lever 6 Pedal 7 Chain 8 Drive shaft 9 Rear wheel 10 Rear body frame 10a Front body frame 11 Saddle 12 Rear wheel vertical rotation mechanism from the ground 13 Rear wheel from the ground Vertical rotation axis 14 Contact point of rear wheels with the ground 15 Front body frame 16 Rear body frame 17 Central body frame 18 Spring 19 Rubber

Claims (1)

前部にハンドル付き舵取りの前輪を備え、後部に駆動軸を持つ後輪を備え、前輪と後輪を保持する車体フレームに左右に回転ペダルを備え、ペダルを踏む回転力が後輪の駆動軸を回転駆動し前進する二輪の自転車において、車体フレームが前輪とハンドルを支持する前方の車体フレームと後輪とペダルを支持する後方の車体フレームとの二つからなり、ハンドルにより姿勢を保持された前方の車体フレームに対して、左右のペダルを交互に踏む力に応じて後方の車体フレームが左右に振れるように、前後二つの車体フレームが弾性素材を備えた回転機構により連結された二輪の自転車。With a front wheel with a handle steering the front, provided with a rear wheel having a drive shaft to the rear, a rotary pedal to the left and right in the vehicle body frame for holding the front wheels and the rear wheels, the rotational force of pedaling is rear-wheel drive shaft In a two-wheeled bicycle that rotates and moves forward, the body frame consists of a front body frame that supports the front wheels and the handle, and a rear body frame that supports the rear wheels and pedals, and the posture is maintained by the handle. A two-wheeled bicycle in which two front and rear body frames are connected by a rotation mechanism equipped with an elastic material so that the rear body frame swings to the left and right according to the force of alternately pressing the left and right pedals with respect to the front body frame. ..
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JP2005053363A (en) * 2003-08-05 2005-03-03 Shimano Inc Hollow structural component part bicycle
JP3052156U (en) * 1997-12-13 1998-09-14 清友 金武 Rear-wheel swing type motorcycle
US7121567B1 (en) * 2005-04-25 2006-10-17 Albert J Gaea Bicycle having front and rear rotative wheel frames with actuatable means for engaging and disengaging the rear wheel frame rotation
JP3197810U (en) * 2015-03-19 2015-06-04 伊藤 博司 Front two-wheel bicycle and suspension / steering device for the front wheel

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