JP2010208610A - Bicycle riding with two small children - Google Patents

Bicycle riding with two small children Download PDF

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JP2010208610A
JP2010208610A JP2009087296A JP2009087296A JP2010208610A JP 2010208610 A JP2010208610 A JP 2010208610A JP 2009087296 A JP2009087296 A JP 2009087296A JP 2009087296 A JP2009087296 A JP 2009087296A JP 2010208610 A JP2010208610 A JP 2010208610A
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seat
infant
attached
tube
bicycle
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Sadao Sakugi
貞雄 柵木
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a bicycle riding with two small children, attaining the enhancement stability and safety of a vehicle body by devising the sitting position of the small child and a seat mounting method. <P>SOLUTION: A seat mounting sub-frame is arranged on the front side of a head tube and a small child seat is mounted to the seat mounting sub-frame. Further, the other small child seat is mounted to a position close to the front wheel of a down tube for connecting a seat tube and the head tube. The small child seat is made into a structure that it is mounted to a position within upper and lower 30 cm on a virtual line for connecting the central axes of the front wheel and the rear wheel, thereby the problem is solved. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、幼児二人乗せ自転車に関するものである。  The present invention relates to a bicycle for carrying two infants.

従来の幼児二人乗せ自転車としては一人をハンドルに座席を取り付けて乗車させ、もう一人を後輪上の荷台部に取り付けた座席に乗車させるものが一般的であった。  A conventional bicycle with two infants is generally one in which a seat is attached to a handle and the other is on a seat attached to a loading platform on the rear wheel.

幼児をハンドルに取り付けた座席と後輪上部の荷台に取り付けた座席に乗車させた場合、幼児二人が自転車の上部に位置することになることから、自転車の重心が高くなり自転車が少し傾いただけでも倒れやすく、バランスを取ることが難しかった。  If the infant rides on a seat attached to the handlebar and a seat attached to the loading platform above the rear wheel, the two infants will be located at the top of the bicycle, so the center of gravity of the bicycle will be higher and the bicycle will be tilted slightly. But it was easy to collapse and it was difficult to balance.

また前側の座席はハンドルに固定されているため、ハンドルが幼児と座席の重量の影響を受けてハンドル操作に力が必要になるとともに、運転時にはハンドルが取られてふらつきの原因となっていた。  In addition, since the front seat is fixed to the handle, the handle is affected by the weight of the infant and the seat, and force is required for the handle operation.

さらに前側の座席と後側の座席が共に高い位置にあるため幼児の乗せ降ろしが大変であった。  Furthermore, since the front seat and the rear seat are both high, it was difficult for children to get on and off.

また、通常の自転車ではかごを設置するスペースを前後とも幼児用座席に占有されているため、荷物を積載するスペースがなく、買い物の際など幼児二人を同乗させた状態で荷物を運ぶことが難しかった。  In addition, because the space for installing a car is occupied by the infant's seat on both the front and rear of a normal bicycle, there is no space for loading luggage, and it is possible to carry luggage with two infants on board such as when shopping. was difficult.

加えて後輪上部に設置した座席に幼児を乗せた場合は、幼児が運転者から見えない位置に乗車することになるため、乗車している幼児が危険な動作をしても気付かずにけがをしたり、思わぬ動きをしたときに運転者が対応できずにバランスを崩すといった問題を有していた。  In addition, if an infant is placed on the seat installed at the upper part of the rear wheel, the infant will get in a position where it cannot be seen by the driver, so an injured child may not be aware of it even if it is dangerous. There was a problem that the driver was unable to respond when he / she made an unexpected move or lost his balance.

本発明は前記のような従来技術の問題点に鑑みて、幼児の着座位置と座席取り付け方法を工夫して車体の安定と安全性の向上を図った幼児二人乗せ自転車を提供することを目的とするものである。  SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to provide a two-child bicycle that improves the stability and safety of the vehicle body by devising the seating position and seat mounting method for the infant. It is what.

本発明における幼児二人乗せ自転車においては、ヘッドチューブの前方に座席取り付け用サブフレームが配設されており、該座席取り付け用サブフレームには幼児用座席が取り付けられている。さらに、シートチューブとヘッドチューブを接続するダウンチューブの前輪寄りにもう一脚の幼児用座席が取り付けられており、該幼児用座席は前輪と後輪の中心軸を結ぶ仮想線上の上下30センチ以内に取り付けることで課題を解決した。  In the bicycle for carrying two infants according to the present invention, a seat mounting subframe is disposed in front of the head tube, and the infant seat is attached to the seat mounting subframe. In addition, another infant seat is attached near the front wheel of the down tube connecting the seat tube and the head tube, and the infant seat is within 30 cm above and below the imaginary line connecting the center axis of the front wheel and the rear wheel. The problem was solved by attaching to.

同乗する幼児はヘッドチューブ前方の座席取り付け用サブフレームに取り付けられた幼児用座席とU字型のダウンチューブの前輪寄りに取り付けられた幼児用座席に着座することになるが、ヘッドチューブ前方の座席取り付け用サブフレームはハンドルより低い位置にあるため、幼児用座席をハンドルに取り付けた場合に比べて低い位置に取り付けることが可能である。同様に、ダウンチューブの前輪寄りに取り付ける幼児用座席は後輪上部の荷台に取り付けた場合に比べて低い位置となる。これにより従来の幼児二人乗せ自転車に比べ、幼児二人同乗時も重心を低く保つことができる。  Infants traveling together will sit in an infant seat attached to the seat mounting subframe in front of the head tube and an infant seat attached to the front wheel of the U-shaped down tube. Since the attachment sub-frame is at a lower position than the handle, it can be attached at a lower position than when the infant seat is attached to the handle. Similarly, the infant seat attached near the front wheel of the down tube is at a lower position compared to the case where it is attached to the loading platform at the upper part of the rear wheel. As a result, the center of gravity can be kept low even when two children ride together, compared to a conventional bicycle with two children.

また、ヘッドチューブ前方の座席取り付け用サブフレームに取り付けられた幼児用座席はハンドルと固定されていないので、ハンドル操作に悪影響を及ぼすことがない。  In addition, since the infant seat attached to the seat mounting subframe in front of the head tube is not fixed to the handle, the handle operation is not adversely affected.

さらにダウンチューブの前輪寄りに取り付けられた幼児用座席は低い位置にあるため、幼児が自力で乗降することも可能となり、保護者の肉体的負担を軽減することができる。  Furthermore, since the infant seat attached near the front wheel of the down tube is in a low position, the infant can get on and off by himself / herself, and the physical burden on the guardian can be reduced.

加えて幼児用座席は二脚ともが運転者の前方に配置されるため、運転中も幼児を目視することができ、幼児が危険な動きをした際でも対応が可能である。  In addition, since both the infant seats are arranged in front of the driver, the infant can be seen while driving, and it is possible to cope even when the infant moves dangerously.

後輪上部の荷台には幼児用座席を設置しない構造であるため、幼児二人同乗時でも後部に荷物を積載することができる。  Since the infant seat is not installed on the loading platform at the upper rear wheel, it is possible to load luggage at the rear even when two infants ride together.

本発明における幼児二人乗せ自転車を示す側面図である。[BRIEF DESCRIPTION OF THE DRAWINGS] It is a side view which shows the infant carrying two infants in this invention. 本発明における幼児二人乗せ自転車の幼児用座席を取り外した状態でのヘッドチューブ、及び座席取り付け用サブフレーム、台座を示す斜視図である。It is a perspective view which shows the head tube in the state which removed the infant seat of the bicycle for carrying two infants in this invention, the sub-frame for seat attachment, and a base. 本発明における幼児二人乗せ自転車の幼児用座席を取り外した状態でのダウンチューブ、及び台座を示す斜視図である。It is a perspective view which shows the down tube and the base in the state which removed the infant seat of the bicycle for carrying two infants in this invention. 本発明における幼児二人乗せ自転車の幼児用座席を後方に向けて取り付けた状態を示す側面図である。It is a side view which shows the state which attached the infant seat of the bicycle for carrying two infants in this invention toward back.

ヘッドチューブの前方に座席取り付け用サブフレームが配設されており、該座席取り付け用サブフレームには幼児用座席が取り付けられている。さらに、ヘッドチューブとシートチューブを接続するダウンチューブの前輪寄りにも幼児用座席が取り付けられている。  A seat mounting subframe is disposed in front of the head tube, and an infant seat is mounted on the seat mounting subframe. Furthermore, an infant seat is also attached to the front side of the down tube connecting the head tube and the seat tube.

以下、本発明の実施の形態を幼児二人乗せ自転車の構造図を示し説明する。尚、本発明とは関係のない構成部品については、説明を省略した。  Hereinafter, an embodiment of the present invention will be described with reference to a structural diagram of a bicycle carrying two infants. In addition, description was abbreviate | omitted about the component which is not related to this invention.

図1は請求項1に記載の本発明における幼児二人乗せ自転車を示す側面図である。  FIG. 1 is a side view showing a bicycle for carrying two infants according to the present invention.

ヘッドチューブ1の前方には円筒状のサブフレーム2が固設されており、該サブフレーム2の上部には小径の棒材を曲げてできた四角形の台座3が固設されている。また、サブフレーム2下部とヘッドチューブ1の間には補強用の支柱4が固設されている。前記台座3には幼児用座席5が取り付けられている。また、該ヘッドチューブ1は中空楕円型のダウンチューブ6前端に固定されており、該ダウンチューブ6の後端はボトムブラケット7と固定されている。  A cylindrical subframe 2 is fixed in front of the head tube 1, and a rectangular base 3 formed by bending a small-diameter bar is fixed on the top of the subframe 2. Further, a reinforcing column 4 is fixed between the lower portion of the subframe 2 and the head tube 1. An infant seat 5 is attached to the pedestal 3. The head tube 1 is fixed to the front end of the hollow elliptical down tube 6, and the rear end of the down tube 6 is fixed to the bottom bracket 7.

またシートチューブ8下端は該ボトムブラケット7に固定されている。上記のようにヘッドチューブ1とダウンチューブ6、ボトムブラケット7、シートチューブ8は連結され一体となっている。  The lower end of the seat tube 8 is fixed to the bottom bracket 7. As described above, the head tube 1, the down tube 6, the bottom bracket 7, and the seat tube 8 are connected and integrated.

前記ダウンチューブ6の前輪9寄りの上側には小径の棒材を曲げてできた四角形の台座10が固設されている。該台座10には幼児用座席11が取り付けられている。  A rectangular pedestal 10 formed by bending a small-diameter bar is fixed on the upper side of the down tube 6 near the front wheel 9. An infant seat 11 is attached to the base 10.

該ダウンチューブ6は運転者の脚がペダル12をこぐ際に幼児用座席11と干渉しないような長さに設定すると共に、幼児用座席11の取り付け位置も運転者の脚と干渉がない位置に取り付けられている。本実施例では前輪9を22インチ、後輪13を20インチの小径に設定しているため、前輪軸と後輪軸を長くとることができ、全長を極端に長くすることなくダウンチューブ6の長さを確保して運転者と干渉なく幼児用座席11を取り付けるスペースを確保している。  The down tube 6 is set to such a length that the driver's leg does not interfere with the infant seat 11 when the pedal 12 is pedaled, and the attachment position of the infant seat 11 is also set so as not to interfere with the driver's leg. It is attached. In this embodiment, since the front wheel 9 is set to a small diameter of 22 inches and the rear wheel 13 is set to a small diameter of 20 inches, the front wheel shaft and the rear wheel shaft can be made long, and the length of the down tube 6 can be increased without extremely increasing the overall length. The space for attaching the infant seat 11 is ensured without interference with the driver.

また、ダウンチューブ6は幼児用座席11に着座した幼児の頭部がハンドル14と干渉しない高さになるように配設されている。  The down tube 6 is disposed so that the head of the infant seated on the infant seat 11 does not interfere with the handle 14.

サブフレーム2の上部に取り付けられた幼児用座席5はダウンチューブ6、ボトムブラケット7、シートチューブ8と一体となったヘッドチューブ1に取り付けられていることから、ハンドル操作に悪影響を与えることがない。  Since the infant seat 5 attached to the upper part of the subframe 2 is attached to the head tube 1 integrated with the down tube 6, the bottom bracket 7 and the seat tube 8, the handle operation is not adversely affected.

幼児用座席5及び幼児用座席11は運転者から同乗する幼児の様子を見やすいように、図4に示すように後方に向けて取り付けて対面式としてもよい。  The infant seat 5 and the infant seat 11 may be attached face-to-face as shown in FIG. 4 so as to make it easier for the driver to see the infant riding together.

ダウンチューブ6にはセンタースタンド15が取り付けられており、幼児の乗せ降ろしの際に車体の安定を図っている。  A center stand 15 is attached to the down tube 6 to stabilize the vehicle body when the infant is put on and off.

後輪13の上部には荷台16が配設されており、該荷台16にかご17を取り付けることで幼児二人を同乗した状態でも荷物を積載することが可能である。  A loading platform 16 is disposed on the upper portion of the rear wheel 13, and a cage 17 is attached to the loading platform 16 so that luggage can be loaded even when two infants are on board.

尚、上記実施例はあくまでも一例であると共にその用途も幼児二人乗せに限定されるもとではなく、幼児用座席5に替えてかごを取り付けて幼児一人乗せ自転車としたり、あるいは幼児用座席11を取り外して重量物を積載するなど他の用途に転用が可能である。  The above embodiment is merely an example, and its use is not limited to carrying two infants. Instead of the infant seat 5, a car can be attached to carry a single infant bicycle, or an infant seat 11 can be used. It can be diverted to other uses, such as removing the and loading heavy objects.

本発明は上記の構成とすることで課題を解決した。  The present invention solves the problem by adopting the above-described configuration.

1 ヘッドチューブ
2 サブフレーム
3 台座
4 支柱
5 幼児用座席
6 ダウンチューブ
7 ボトムブラケット
8 シートチューブ
9 前輪
10 台座
11 幼児用座席
12 ペダル
13 後輪
14 ハンドル
15 センタースタンド
16 荷台
17 かご
DESCRIPTION OF SYMBOLS 1 Head tube 2 Subframe 3 Base 4 Support | pillar 5 Infant seat 6 Down tube 7 Bottom bracket 8 Seat tube 9 Front wheel 10 Base 11 Infant seat 12 Pedal 13 Rear wheel 14 Handle 15 Center stand 16 Carriage 17 Car

Claims (4)

ヘッドチューブ前方に設けられたサブフレームに幼児用座席が取り付けられてなりシートチューブとヘッドチューブを接続するダウンチューブの前輪寄りにもう一脚の幼児用座席が取り付けられた構造の幼児二人乗せ自転車。  Bicycle for two infants with a structure in which an infant seat is attached to the sub-frame provided in front of the head tube, and another infant seat is attached to the front wheel of the down tube connecting the seat tube and the head tube. . ダウンチューブの前輪寄りに取り付けられた幼児用座席に着座した幼児の頭部がハンドルと干渉しない該ハンドルの下側に位置する構造の請求項1に記載の幼児二人乗せ自転車。  2. The bicycle for carrying two infants according to claim 1, wherein the head of the infant seated on the infant seat attached to the front wheel of the down tube is positioned below the handle so as not to interfere with the handle. ダウンチューブに取り付けられた幼児用座席が前輪と後輪の中心軸を結ぶ仮想線上の上下30センチ以内に取り付けられてなる構造の請求項1に記載の幼児二人乗せ自転車。  The bicycle for carrying two infants according to claim 1, wherein the infant seat attached to the down tube is attached within 30 cm above and below the imaginary line connecting the center axes of the front and rear wheels. 幼児用座席が後方を向いて取り付けられており運転者と対面式となる構造の請求項1に記載の幼児二人乗せ自転車。  The bicycle for carrying two infants according to claim 1, wherein the infant seat is mounted facing backwards and is configured to face the driver.
JP2009087296A 2009-03-09 2009-03-09 Bicycle riding with two small children Pending JP2010208610A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012096629A (en) * 2010-11-01 2012-05-24 Panasonic Corp Bicycle with child seating device
CN107719531A (en) * 2016-08-13 2018-02-23 伍以炳 Electric car infant's bench

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012096629A (en) * 2010-11-01 2012-05-24 Panasonic Corp Bicycle with child seating device
CN107719531A (en) * 2016-08-13 2018-02-23 伍以炳 Electric car infant's bench

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