WO2011088771A1 - 前轮驱动转向自行车 - Google Patents

前轮驱动转向自行车 Download PDF

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Publication number
WO2011088771A1
WO2011088771A1 PCT/CN2011/070300 CN2011070300W WO2011088771A1 WO 2011088771 A1 WO2011088771 A1 WO 2011088771A1 CN 2011070300 W CN2011070300 W CN 2011070300W WO 2011088771 A1 WO2011088771 A1 WO 2011088771A1
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WO
WIPO (PCT)
Prior art keywords
gear
steering
front wheel
ring gear
bicycle
Prior art date
Application number
PCT/CN2011/070300
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English (en)
French (fr)
Inventor
刘爱诗
Original Assignee
Liu Aishi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Liu Aishi filed Critical Liu Aishi
Publication of WO2011088771A1 publication Critical patent/WO2011088771A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K3/00—Bicycles
    • B62K3/005—Recumbent-type bicycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00—Cycle frames
    • B62K19/30—Frame parts shaped to receive other cycle parts or accessories
    • B62K19/32—Steering heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00—Cycle frames
    • B62K19/30—Frame parts shaped to receive other cycle parts or accessories
    • B62K19/34—Bottom brackets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K21/00—Steering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K3/00—Bicycles
    • B62K3/02—Frames
    • B62K3/06—Frames of open type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K3/00—Bicycles
    • B62K3/02—Frames
    • B62K3/10—Frames of single-beam type, i.e. connecting steering head to rear axle

Definitions

  • the invention belongs to the field of bicycles and motorized bicycles. Background technique
  • the driving method of the existing bicycles is to push the bicycles down with both feet.
  • the position of the seat is generally high. Therefore, it is inconvenient for the rider to get on and off, and the body is affected by the bicycle. Higher center of gravity leads to instability and easy fall.
  • the braking method of the forward flexion and extension of the feet is used, the height of the seat can be lowered, and the above problem is solved, and this problem has not been effectively solved.
  • the first one is that the pedal disk is close to the front wheel, and the structure of the rear wheel is driven by the chain, the chain is too long, and the transmission efficiency is low; the second type is directly driving the front wheel.
  • the structure of the rear wheel steering has the disadvantage of not meeting the people's riding habits; the third type is the structure of the front axle directly driven by the feet, and there are insufficient feet to hinder the steering of the front wheels; the fourth is the use of the pedals.
  • the structure of the front wheel driving the front axle has a disadvantage that the front wheel is unstable and the steering is not flexible due to the uneven rotation of the universal joint. Summary of the invention
  • the object of the present invention is to solve the above-mentioned deficiencies, and to provide a bicycle that can smoothly drive and flexibly turn the front wheel, and meet the requirements of the two legs to bend forward and stretch, thereby reducing the height of the bicycle and improving the convenience of the vehicle. safety.
  • the basic embodiment of the present invention is: the pedal driving mechanism is located in front of the seat and above the front wheel, and the seat is a seat having a backrest; the front fork of the bicycle is provided with a universal ring gear, and the universal ring gear can be
  • the fork standpipe rotates for the shaft, the frame is provided with a fixed gear, the fixed gear meshes with the universal ring gear and is connected with the pedal, the front fork is provided with a steering gear, the steering gear meshes with the universal ring gear and passes through the gear, the chain or The shaft drives the front wheel to rotate.
  • the pedal drives the universal ring gear to rotate by the fixed gear
  • the universal ring gear drives the steering gear to rotate and drives the front wheel to rotate through an intermediate transmission member such as a chain.
  • the steering gear rotates with the front fork, and also rotates around the universal ring gear and always maintains contact with the universal ring gear, thereby achieving both steering and driving purposes.
  • the transmission between the universal ring gear and the ankle and between the front wheels may be gears, chains or shafts, and may be provided with a chain tensioner or a spline telescopic bushing.
  • the second aspect of the present invention is based on the first aspect.
  • the seat In order to facilitate the forward braking, the seat is a backrest-shaped seat that supports the back. After the height of the car is lowered, in order to avoid the taillights being too low, high taillights and brake lights are provided on the back of the seat back.
  • the third aspect of the present invention is based on the first or second scheme.
  • the vehicle beam connecting the front and rear wheels is an overhead vehicle beam. The front end of the beam is connected to both sides of the front fork sleeve, the middle section is located above the rider's head, and the rear end is connected to the rear frame at the rear of the seat.
  • the fourth aspect of the present invention is based on the third aspect, and the windshield is provided on the overhead type vehicle beam.
  • the invention has the advantages that: the invention has the function that the front wheel of the bicycle has the function of driving the steering and has the characteristics of smooth driving and flexible steering, and solves the problem that the bicycle is faced with the forward flexion and extension of the bicycle, and can reduce the height of the bicycle. It is more convenient to get off the bus and safer to ride.
  • the present invention adopts the seat type bicycle riding method, and can overcome the following deficiencies of the existing bicycles: First, because the seat is small, the rider's buttocks are too concentrated, and the blood circulation of the muscles is poor.
  • FIG. 1 is a schematic structural view of a front wheel drive steering structure portion according to a first aspect of the present invention.
  • Front fork 2.
  • Front fork standpipe 3.
  • Steering gear 4.
  • Universal gear ring 5.
  • Transition gear 6.
  • Pedal 7 Fixed gear
  • Front fork bushing 9.
  • Handlebar 10.
  • Frame 11.
  • Sprocket 12 Dust cover 13.
  • Chain 14.
  • Flywheel 15.
  • Front axle 16 Front wheel
  • FIG. 2 is a schematic structural view of an embodiment of a second aspect of the present invention.
  • FIG. 3 is a schematic structural view of another embodiment of a second aspect of the present invention.
  • FIG. 4 is a schematic structural view of an embodiment of a third aspect of the present invention.
  • Rear wheel Figure 5 is a schematic view of the structure of a fourth embodiment of the present invention.
  • the front fork 1 and the front fork standpipe 2 are integrated, and the steering gear 3 is mounted on the front fork standpipe 2 through its shaft and rotates together with the front fork 1.
  • the universal ring gear 4 is fitted over the front fork standpipe 2, and the bevel gear at the lower end thereof meshes with the steering gear 3.
  • the sprocket 11 is coaxial with the steering gear 3, and is provided with a chain 13 which is drivingly coupled to the front wheel 16 via a flywheel 14 of the front axle 15, and a front axle 15.
  • the front fork sleeve 8 is connected to the frame 10, and has a fixed gear 7 and a transition tooth therein.
  • the wheel 5, the upper end bevel gear of the universal ring gear 4 is located in the front fork bushing 8 and meshes with the fixed gear 7 via the transition gear 5, and the fixed gear 7 is connected to the pedal 6.
  • the pedal 6 drives the universal ring gear 4 to rotate by the fixed gear 7 and the transition gear 5, and the universal ring gear 4 drives the steering gear 3 to rotate and drives the front wheel 16 to rotate by the chain 13 as an intermediate transmission member.
  • the steering gear 3 rotates around the bevel gear at the lower end of the universal ring gear 4 and maintains a normal drive connection.
  • the gear or the shaft may be used instead of the chain 13 as the intermediate transmission member to drive the front wheel 16 to rotate, thereby realizing the front wheel drive of the bicycle.
  • the upper end of the front fork is equipped with a handlebar 9, and the front fork can also be provided with a dust cover 12.
  • the seat has a backrest seat 18 that supports the back.
  • the taillight 17 is located on the back of the backrest of the seat 18, see Figure 2, to avoid the rear light being too low after the height of the car is lowered.
  • the present invention can also employ a roof-mounted vehicle beam 19 for connecting the front wheel 16 and the rear wheel 20.
  • the structure and connection are shown in Figures 4 and 5.
  • the front end of the overhead beam 19 is connected to both sides of the front fork sleeve 8.
  • the middle section is located above the rider's head and the rear end is connected to the rear frame 10 at the rear of the seat 18.
  • the overhead windshield 19 can also be provided with a transparent windshield 21, see Fig. 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)

Description

前轮驱动转向自行车 技术领域
本发明属于自行车及机动助力自行车领域。 背景技术
现有自行车的驱动方式都是双脚向下用力蹬车， 为了便于双脚伸直， 车座的位置一般 都比较高， 因此， 存在骑车人上、 下车不方便、 骑车时因身体重心较高导致行车不稳和容 易摔倒等不足。 如果采用双脚向前屈伸的蹬车方式， 便可以降低车座的高度， 解决上述不 足， 而这个问题一直没有得到有效地解决。 目前， 自行车前驱动方式主要有以下几种： 第 一种是脚蹬盘靠近前轮， 利用链条驱动后轮的结构， 存在链条过长， 传动效率低的不足； 第二种是直接驱动前轮， 采用后轮转向的结构， 存在不符合人们骑车习惯的不足； 第三种 是双脚直接驱动前轮轴的结构， 存在双脚妨碍前轮转向的不足； 第四种是脚蹬盘利用万向 节驱动前轮的结构， 存在因万向节转速不均勾， 致使前轮行驶不稳和转向不灵活的不足。 发明内容
本发明的目的在于解决上述不足，提供一种前轮既能顺畅驱动又能灵活转向的自行车， 满足双脚向前屈伸蹬车的要求， 以降低自行车的高度， 提高人们用车的方便性和安全性。
本发明的基本实施方案为： 脚蹬驱动机构位于车座前方和前轮上方， 车座为具有靠背 的座椅； 自行车的前叉竖管上套装有万向齿圈， 万向齿圈能以前叉竖管为轴进行转动， 车 架上装有固定齿轮， 固定齿轮与万向齿圈啮合并与脚蹬连接， 前叉上装有转向齿轮， 转向 齿轮与万向齿圈啮合并通过齿轮、 链条或轴驱动前轮转动。 自行车行驶时， 脚蹬通过固定 齿轮驱动万向齿圈转动， 万向齿圈再驱动转向齿轮转动并通过链条等中间传动件带动前轮 转动。 转向过程中， 转向齿轮在随前叉一起转向的同时， 也围绕着万向齿圈转动并始终保 持与万向齿圈的接触， 从而， 实现既转向又驱动的目的。
万向齿圈与脚蹬之间和前轮之间的传动， 可以是齿轮、 链条或轴， 可以设有链条张紧 器或花键伸缩轴套。
本发明的第二个方案以第一个方案为基础， 为了便于向前用力蹬车， 车座采用对后背 有支撑作用的靠背形座椅。 车身高度降低后， 为避免车尾灯过低， 在座椅靠背的背面设有 高位尾灯及刹车灯。 本发明的第三个方案以第一或第二个方案为基础， 为了避免在上、 下车时须跨越车梁 而引起的不便，连接前轮和后轮的车梁为顶置式车梁，车梁的前端与前叉套管的两侧连接， 中段位于骑车人的头顶上方， 后端在座椅的后部与后车架连接。
本发明的第四个方案以第三个方案为基础， 顶置式车梁上设有挡风罩。
本发明的优点为： 本发明使自行车的前轮具有了驱动转向的功能并具有驱动顺畅和转 向灵活的特点， 解决了双脚向前屈伸骑车所面临的难题， 可以降低自行车高度， 使上、 下 车更方便和骑车更安全。 此外， 本发明采用座椅式骑车方式， 还可以克服现有自行车的下 列不足： 一是由于车座较小， 造成骑车人的臀部受力过于集中， 使这部分肌肉的血液循环 不畅， 容易引起臀部不适或引发某些疾病； 二是骑车时需要身体前倾， 使手腕受力过大， 容易引起手腕疼痛或损伤； 三是， 由于骑车时主要是向下用力蹬车， 蹬车的驱动力受体重 的制约， 腿部的蹬力不能充分发挥， 使自行车的行车速度、 加速性能和爬坡能力均受到影 响； 四是， 骑车时人的腰背部没有承力点， 只能依靠手部对车把的握紧力来平衡或支撑蹬 车力对身体的反作用力， 使得从脚、 腿、 腰、 腹到胸、 臂和手等全身肌肉紧张， 导致骑车 容易疲劳。 附图说明
图 1为本发明第一技术方案的前轮驱动转向结构部分的结构示意图。 图中 1.前叉 2.前叉 竖管 3.转向齿轮 4.万向齿圈 5.过渡齿轮 6.脚蹬 7.固定齿轮 8.前叉套管 9.车把 10.车架 11.链轮 12.防尘罩 13.链条 14.飞轮 15.前轮轴 16.前轮
图 2为本发明第二个方案的一种实施例的结构示意图。 图中 17.尾灯 18.座椅
图 3为本发明第二个方案的另一种实施例的结构示意图。
图 4为本发明第三个方案的一种实施例的结构示意图。 图中 19.顶置式车梁 20.后轮 图 5为本发明第四个方案的一种实施例的结构示意图。 图中 21.透明挡风罩 具体实施方式
以下结合附图和实施例对本发明作进一步说明。
如图 1所示， 前叉 1和前叉竖管 2为一体， 转向齿轮 3通过其轴安装在前叉竖管 2上 并随前叉 1一起转动。 万向齿圈 4套装在前叉竖管 2上， 其下端的锥齿轮与转向齿轮 3啮 合。 链轮 11与转向齿轮 3同轴， 其上装有链条 13， 链条 13通过前轮轴 15的飞轮 14、 前 轮轴 15与前轮 16传动连接。 前叉套管 8与车架 10连接， 其内装有固定齿轮 7和过渡齿 轮 5， 万向齿圈 4的上端锥齿轮位于前叉套管 8内并通过过渡齿轮 5与固定齿轮 7啮合， 固定齿轮 7与脚蹬 6连接。 驱动时， 脚蹬 6通过固定齿轮 7和过渡齿轮 5驱动万向齿圈 4 转动，万向齿圈 4再驱动转向齿轮 3转动并通过链条 13作为中间传动件驱动前轮 16转动。 转向过程中，转向齿轮 3围绕万向齿圈 4下端的锥齿轮转动并保持正常的驱动连接。其中， 本发明上述实施方式中还可以采用齿轮或轴代替链条 13 作为中间传动件驱动前轮 16 转 动， 实现自行车前轮驱动。
前叉的上端装有车把 9， 前叉上还可以装有防尘罩 12。
为了便于向前用力蹬车， 车座采用对后背有支撑作用的靠背形座椅 18。 尾灯 17位于 座椅 18靠背的背面， 见图 2， 以避免车身高度降低后， 车尾灯过低。
本发明还可采用顶置式车梁 19用以连接前轮 16和后轮 20， 其结构与连接见图 4和图 5， 顶置式车梁 19的前端与前叉套管 8的两侧连接， 中段位于骑车人的头顶上方， 后端在 座椅 18的后部与后车架 10连接。 作为本发明进一步改进， 该顶置式车梁 19上还可以安 装有透明挡风罩 21， 见图 5。

Claims

权利 要求 、 一种前轮驱动转向自行车， 脚蹬驱动机构位于车座前方和前轮上方， 车座为具有靠背 的座椅， 其特征在于前叉竖管上套装有万向齿圈， 万向齿圈能以前叉竖管为轴进行转 动， 车架上装有固定齿轮， 固定齿轮与万向齿圈啮合并与脚蹬连接， 前叉上装有转向 齿轮， 转向齿轮与万向齿圈啮合并通过齿轮、 链条或轴驱动前轮转动。
、 如权利要求 1所述的前轮驱动转向自行车，其特征在于所述座椅靠背的背面设有尾灯。 、 如权利要求 1或 2所述的前轮驱动转向自行车， 其特征在于连接前轮和后轮的车梁为 顶置式车梁， 所述车梁的前端与前叉套管的两侧连接， 中段位于骑车人的头顶上方， 后端在座椅的后部与后车架连接。
、 如权利要求 3所述的前轮驱动转向自行车，其特征在于所述顶置式车梁上设有挡风罩。
PCT/CN2011/070300 2010-01-20 2011-01-15 前轮驱动转向自行车 WO2011088771A1 (zh)

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CN2010100313879A CN102126535A (zh) 2010-01-20 2010-01-20 前轮驱动转向自行车
CN201010031387.9 2010-01-20

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014206388A1 (de) * 2013-06-26 2014-12-31 Friedrich Ruschitzka Kinderfahrzeug mit schwenkbaren pedal angetriebenen rädern
CN113335427A (zh) * 2021-07-22 2021-09-03 深圳市海川伟业科技有限公司 一种便于收纳的电动自行车

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105759819A (zh) * 2016-03-28 2016-07-13 西安万物工业控制技术有限公司 一种双向行驶的无人搬运车

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Publication number Priority date Publication date Assignee Title
CN2151086Y (zh) * 1993-02-22 1993-12-29 刘振宇 前后轮传动自行车
CN2690668Y (zh) * 2004-02-09 2005-04-06 汤志伟 水上健身自行车传动装置
CN101080586A (zh) * 2005-12-09 2007-11-28 韩国T&B株式会社 传动装置
US20090072511A1 (en) * 2007-09-18 2009-03-19 John Irven Tolhurst Front Wheel Drive Recumbent Bicycle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2151086Y (zh) * 1993-02-22 1993-12-29 刘振宇 前后轮传动自行车
CN2690668Y (zh) * 2004-02-09 2005-04-06 汤志伟 水上健身自行车传动装置
CN101080586A (zh) * 2005-12-09 2007-11-28 韩国T&B株式会社 传动装置
US20090072511A1 (en) * 2007-09-18 2009-03-19 John Irven Tolhurst Front Wheel Drive Recumbent Bicycle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014206388A1 (de) * 2013-06-26 2014-12-31 Friedrich Ruschitzka Kinderfahrzeug mit schwenkbaren pedal angetriebenen rädern
CN113335427A (zh) * 2021-07-22 2021-09-03 深圳市海川伟业科技有限公司 一种便于收纳的电动自行车

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