JP2018158703A - Bicycle comprising rotary drive and erratic driving - Google Patents

Bicycle comprising rotary drive and erratic driving Download PDF

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JP2018158703A
JP2018158703A JP2017076294A JP2017076294A JP2018158703A JP 2018158703 A JP2018158703 A JP 2018158703A JP 2017076294 A JP2017076294 A JP 2017076294A JP 2017076294 A JP2017076294 A JP 2017076294A JP 2018158703 A JP2018158703 A JP 2018158703A
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rear wheel
pedal
wheel
body frame
ground
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JP6893729B2 (en
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秋元　直人
Naoto Akimoto
直人 秋元
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Abstract

PROBLEM TO BE SOLVED: To provide a two-wheeled bicycle that improves hill-climbing performance by bringing about erratic driving of a drive wheel itself concurrently with rotary drive by a pedal.SOLUTION: A front part is provided with a steering wheel 1 with a handle 4; a rear part is provided with a drive shaft 8; and a force for depressing a pedal 6 is transferred to a rear wheel. The rear wheel is provided with a rotating shaft 13 in a vertical direction from a ground surface. Thus, the rear wheel is shaken from side to side with respect to a traveling direction depending on the force for depressing the pedal so that erratic driving can be performed. The execution of the erratic driving can reduce an apparent inclination of a slope during slope climbing to improve slope climbing performance.SELECTED DRAWING: Figure 1

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 drive a vehicle with wheels, such as a bicycle, where the pedaling force is the rotational force of the drive shaft. However, there is a method of propelling (see Patent Document 1, for example).

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 steering front wheel with a steering wheel at the front, there is a rowing method that improves the climbing performance by reducing the apparent gradient by swinging the front handle to the left and right to meander.

特開平１１−１７１０７７JP-A-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 front wheel with a handle at the front and a rear wheel with a drive shaft with a pedal at the rear, the rear wheel is fixed parallel to the direction of travel, so the front wheel By swinging it in a meandering manner, the climbing performance can be improved. However, since the rear wheels are fixed in parallel with the traveling direction, the meandering operation can only be performed 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、後輪に地面に対して縦方向の回転軸を持たせたのである。  In order to solve the above problems, the product of the present invention has a front steering wheel with a steering wheel at the front, and a two-wheeled bicycle having a drive shaft with a pedal at the rear. I had it.

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共に、ペダルを踏む力により地面から縦方向の回転軸により後輪が左右に振れる。  The operation of the first problem solving means is as follows. When the pedal is driven, the rear wheel is driven and rotated in the traveling direction, and the rear wheel is swung from side to side by the vertical rotation shaft from the ground by the force of stepping on the pedal.

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 performs meandering operation by swinging left and right in synchronism with the rear wheel depressing the pedal left and right simultaneously with rotational driving. Since the apparent slope when climbing can be reduced by meandering, 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 present invention product 同後輪の地面から縦方向の回転機構の平面図Plan view of the vertical rotation mechanism from the ground of the rear wheel 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 vertical rotation mechanism from the ground of the rear wheel 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A plan view in which the vertical rotation mechanism from the ground of the rear wheel is made of an 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。  Preferred embodiments of the present invention will be described below 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 according to the first embodiment, a front fork 2 is attached to a rotating shaft of a front wheel 1, and a handle 4 and a front fork 2 are rotatably attached to a head pipe 3 at the front end. The handle 4 has two brake levers 5 which are connected to the front wheel 1 and the rear wheel 9 via wires, respectively. The brake device is operated by pulling the brake lever 2 to operate the front wheel 1 and the rear wheel 9. The rotation in the traveling direction 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. The pedal 6 and the rear wheel 9 are driven by the driving force of the pedal 6 to the driving shaft 8 of the rear wheel 9 via the chain 7 and become 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 wheel. A rotating shaft 13 that is rotated by the vertical rotating mechanism 12 from the ground of the rear wheel is positioned in front of the contact 14 with the ground of the rear wheel, 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。    A plan view of the rotation mechanism 12 in the vertical direction from the ground of the rear wheel is shown in FIG. FIG. 2 shows two states when the rear body frame 10 directly connected to the rear wheel 9 swings to the right and left. The rear body frame 10 and the front body frame 10a are rotatably attached to the vertical rotation mechanism 12 from the ground of the rear wheel.

ペダル６を踏んだ時の後輪９の左右の振れを制限したい場合には、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。    When it is desired to limit the left and right deflection of the rear wheel 9 when the pedal 6 is depressed, an elastic material such as a spring 18 is installed between the rear body frame 10 and the front body frame 10a as shown in FIG. realizable. FIG. 3 shows two states when the rear body frame 10 directly connected to the rear wheel 9 swings to the right and left.

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。    When it is desired to completely stop the left and right swinging of the rear wheel 9 when the pedal 6 is stepped on, a brake device and a brake lever are attached to the vertical rotating mechanism 12 from the ground of the rear wheel. Thus, the left and right runout of the rear wheel 9 can be braked as necessary.

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 wheel 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.

上記構成の動作を説明する。上記のようにして本発明の第１の実施の形態の自転車を形成することができるものであり、後輪の地面から縦方向の回転機構１２を図２、図３、図４いずれの構成をとった場合でもペダル６を踏み込む力で後輪９は左右に振れ、後輪９による蛇行運転が可能となる。  The operation of the above configuration will be described. The bicycle according to the first embodiment of the present invention can be formed as described above, and the vertical rotation mechanism 12 from the ground of the rear wheel is configured as shown in FIGS. Even in this case, the rear wheel 9 swings left and right by the force of depressing the pedal 6, and the meandering operation by the rear wheel 9 becomes possible.

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 a 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 according to the second embodiment, a front fork 2 is attached to a rotation shaft of a front wheel 1, and a handle 4 and a front fork 2 are rotatably attached to a head pipe 3 at the front end. The handle 4 has two brake levers 5 that are connected to the front wheel 1 and the rear wheel 9 via wires, respectively. The brake device is operated by pulling the brake lever 5 to operate the front wheel 1 and the rear wheel 9. The rotation in the traveling direction 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 is provided with a pedal 6 at the front end and a drive shaft 8 for the rear wheel 9 at the rear end. The pedal 6 and the rear wheel 9 are connected via a chain 7 so that the driving force of the pedal 6 is the drive shaft for the rear wheel 9. It is transmitted to 8 and becomes thrust. The front body frame 15 and the rear body frame 16 are connected by a central 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 central 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。ペダル６を踏み込んだときに中央車体フレーム１７はその弾性により歪み、後輪の地面との接点１４を中心として回転を生じる。これにより後輪９は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. When the pedal 6 is depressed, the central body frame 17 is distorted by its elasticity and rotates around the contact point 14 of the rear wheel with the ground. As a result, the rear wheel 9 swings to the left and right and performs meandering operation.

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DESCRIPTION OF SYMBOLS 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 vehicle frame 10a Front vehicle frame 11 Saddle 12 Vertical rotation mechanism from the ground of the rear wheel 13 From the ground of the rear wheel Vertical rotating shaft 14 Contact point of rear wheel with 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はペダルとサドルを備え、ペダルを踏みこむ力で後輪の駆動軸を回転駆動するとともに、車体フレームに後輪用の地面から縦方向の回転機構を備えることで、後輪が左右に振れ蛇行運転することのできる二輪の自転車。  Steering front wheel with handle at front, rear wheel with drive shaft at rear, body frame holding front wheel and rear wheel with pedal and saddle, rear wheel drive shaft with force to step on pedal The two-wheeled bicycle can be driven in a meandering manner by swinging the rear wheels left and right by providing a vertical rotation mechanism from the rear wheel ground to the vehicle body frame.
JP2017076294A 2017-03-21 2017-03-21 Bicycle that meanders in conjunction with pedal drive Active JP6893729B2 (en)

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JP2017076294A JP6893729B2 (en) 2017-03-21 2017-03-21 Bicycle that meanders in conjunction with pedal drive

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JP6893729B2 JP6893729B2 (en) 2021-06-23

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11171077A (en) * 1997-12-13 1999-06-29 Kiyotomo Kanetake Rear wheel oscillating type two-wheeler
JP2005053363A (en) * 2003-08-05 2005-03-03 Shimano Inc Hollow structural component part bicycle
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11171077A (en) * 1997-12-13 1999-06-29 Kiyotomo Kanetake Rear wheel oscillating type two-wheeler
JP2005053363A (en) * 2003-08-05 2005-03-03 Shimano Inc Hollow structural component part bicycle
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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