JP2014097222A

JP2014097222A - Folding-type four-wheel bicycle

Info

Publication number: JP2014097222A
Application number: JP2012251094A
Authority: JP
Inventors: Masahiro Kinoshita; 木下正裕
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-15
Filing date: 2012-11-15
Publication date: 2014-05-29

Abstract

PROBLEM TO BE SOLVED: To solve the problem that a living action range of the elderly who do not have suitable moving means other than walking has to be limited since in spite of the fact that a bicycle is handy moving means for the elderly, there is a risk of overturning while a walking aid vehicle is indispensable for the elderly going shopping for daily necessaries.SOLUTION: A folding-type four-wheel bicycle is usually used as safe moving means for the elderly as a four-wheel bicycle with no risk of overturning, and when folded, can be used as a walking aid vehicle with which the elderly can walk safely, and which is convenient for shopping, thereby connecting different moving actions of walking and bicycle riding in a quick manner, and solving the problem that a living action range of the elderly becomes limited.

Description

本発明は折りたたんだ時に、歩行補助車として使用できる４輪自転車に関するものである。 The present invention relates to a four-wheeled bicycle that can be used as a walking assistance vehicle when folded.

従来、折りたたんだ時に歩行補助車として使用できる４輪自転車はなかった Previously, there were no four-wheeled bicycles that could be used as walking aids when folded

従来、高齢者が買い物などで外出する際、普通の２輪自転車に乗ることに転倒の危険性を感じる時は歩行補助車を押して徒歩で行くことが多く、行動範囲が狭くならざるを得なかった。本発明は、転倒の恐れのない４輪自転車としても、歩行補助車としても使えるようにすることで、歩行と自転車走行という異なる移動行為をスムーズに繋げ、高齢者の生活行動範囲が狭くなる問題を解決するものである。 Conventionally, when elderly people go out for shopping, etc., when they feel the danger of falling in riding a normal two-wheeled bicycle, they often go on foot by pushing a walking assistance vehicle, and the range of action has to be narrowed. It was. The present invention can be used as a four-wheel bicycle with no fear of falling or as a walking assistance vehicle, thereby smoothly connecting different movement acts of walking and bicycle running, and the range of living behavior of the elderly is narrowed. Is a solution.

４輪自転車を折りたたんで歩行補助車として使えるようにすることで、高齢者の移動範囲が狭くなる問題を解決する。 By folding a four-wheeled bicycle so that it can be used as a walking assistance vehicle, the problem of narrowing the moving range of elderly people is solved.

本発明を使用することで、特に高齢者にとって４輪自転車としての安定した走行と、歩行補助車として使用することによる安全な歩行とを、連続的に行うことができる。スーパー等での買い物に際しても、自転車の駐輪に煩わされる事なく、歩行補助車として店内に持ち込み買い物カートとしても使用できる。 By using the present invention, it is possible to continuously perform stable running as a four-wheeled bicycle and safe walking by using it as a walking auxiliary vehicle, particularly for elderly people. When shopping at a supermarket or the like, the bicycle can be brought into the store as a walking assistance car and used as a shopping cart without being bothered by bicycle parking.

図１は本発明の４輪自転車の状態の斜視図である。FIG. 1 is a perspective view of a four-wheel bicycle according to the present invention. 図２は本発明の歩行補助車の状態の斜視図である。FIG. 2 is a perspective view of the walking assistance vehicle of the present invention.

以下、本発明の実施の形態を説明する。
本発明は、前方フレーム（２２）に支点Ａ（６）支点Ｂ（７）を設け、両支点を中心に回転用フレーム（１３）を回転させて後輪と前輪を引き寄せることにより、４輪自転車を折りたたんで歩行補助車へと変形させる。引き寄せる方法は、後輪軸受け（１１）に１端を固定し、他端をスライド軸受け（１２）で前方フレーム(２２)に接続した、バー（１４）の先端に取り付けた折りたたみ用副歯車（１５）と、後輪軸受け（１１）に取り付けた折りたたみ用主歯車（１７）との間に架けた折りたたみ用チェーン（１８）の１点をスライド軸受け（１２）に固定し、折りたたみ用主歯車（１７）を（イ）の方向に回転させることにより、前方フレーム（２２）と後方フレーム（１９）を引き寄せる。逆に、４輪自転車へと展開する時は、折りたたみ用主歯車（１７）を反対に（ロ）の方向に回転させる。回転させるのは、手動で行う他自転車走行アシストモーター（２１）を利用して電動で行うことも可能である。折りたたむ際に弛んだ走行用チェーン（４）は、２つのチェーン巻き取り用歯車（２０）がついた腕木（１６）をばねの力で回転させることにより、巻き取って収納する。
本発明は以上のような構造である。 Embodiments of the present invention will be described below.
The present invention provides a fulcrum A (6) and a fulcrum B (7) on the front frame (22), and rotates the rotating frame (13) around both fulcrums to draw the rear and front wheels together. Fold down to transform it into a walking assistance vehicle. The pulling method is such that one end is fixed to the rear wheel bearing (11) and the other end is connected to the front frame (22) by the slide bearing (12), and the folding auxiliary gear (15 ) And the folding main gear (17) attached to the rear wheel bearing (11), one point of the folding chain (18) is fixed to the slide bearing (12), and the folding main gear (17 ) In the direction of (A), the front frame (22) and the rear frame (19) are drawn. Conversely, when deploying to a four-wheel bicycle, the folding main gear (17) is rotated in the opposite direction (b). The rotation can also be performed electrically by using the other bicycle travel assist motor (21) that is manually performed. The travel chain (4) slackened when folded is wound and stored by rotating the arm (16) with the two chain winding gears (20) by the spring force.
The present invention has the above structure.

本発明の使用法は以下である。
（イ）４輪自転車として使用する時は、使用者は座席（１）に座りハンドル（８）を握って、ペダル（２）を回して前進させる。
（ロ）歩行補助車として使用する時は、フレームを折りたたんだ状態にして、本発明の後方または前方に立ってハンドルを握り、押しながら歩行する。 The usage of the present invention is as follows.
(A) When using as a four-wheel bicycle, the user sits on the seat (1), grasps the handle (8), and turns the pedal (2) to advance.
(B) When used as a walking auxiliary vehicle, the frame is folded and the vehicle stands while standing behind or in front of the present invention, holding the handle and walking.

(１)座席、(２)ペダル、(３)主歯車、(４) 走行用チェーン、(５)後輪軸歯車、(６)支点Ａ、(７)支点Ｂ、(８)ハンドル、（９）前輪、（１０）後輪、（１１）後輪軸受け、（１２）スライド軸受け、（１３）回転用フレーム、(１４) バー、（１５）折りたたみ用副歯車、（１６）腕木、（１７）折りたたみ用主歯車、（１８）折りたたみ用チェーン、（１９）後方フレーム、（２０）チェーン巻き取り用歯車、（２１）自転車走行アシストモーター、（２２）前方フレーム (1) Seat, (2) Pedal, (3) Main gear, (4) Traveling chain, (5) Rear wheel shaft gear, (6) Support point A, (7) Support point B, (8) Handle, (9) Front wheel, (10) Rear wheel, (11) Rear wheel bearing, (12) Slide bearing, (13) Rotating frame, (14) Bar, (15) Folding auxiliary gear, (16) Arm, (17) Folding Main gear, (18) folding chain, (19) rear frame, (20) chain winding gear, (21) bicycle travel assist motor, (22) front frame

Claims

The front frame (22) is provided with a fulcrum A (6) and a fulcrum B (7), and the frame for rotation (13) is rotated around both fulcrums to draw the rear and front wheels into a walking assistance vehicle. A four-wheeled bicycle that can.