WO2016077940A1 - 一种折叠自行车 - Google Patents

一种折叠自行车 Download PDF

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Publication number
WO2016077940A1
WO2016077940A1 PCT/CN2014/001038 CN2014001038W WO2016077940A1 WO 2016077940 A1 WO2016077940 A1 WO 2016077940A1 CN 2014001038 W CN2014001038 W CN 2014001038W WO 2016077940 A1 WO2016077940 A1 WO 2016077940A1
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Prior art keywords
frame
folding
tapered
head
front wheel
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PCT/CN2014/001038
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English (en)
French (fr)
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张义杰
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太仓市哲泰天产品设计有限公司
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Priority to PCT/CN2014/001038 priority Critical patent/WO2016077940A1/zh
Publication of WO2016077940A1 publication Critical patent/WO2016077940A1/zh

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    • 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
    • B62K15/00—Collapsible or foldable cycles

Definitions

  • the present invention relates to a folding bicycle, and more particularly to an ultra-light 14-inch or 16-inch folding bicycle.
  • folding bikes are foldable and easy to carry.
  • the key factor for easy folding of a bicycle is weight.
  • Lightweight folding bikes are more popular with consumers. At present, the weight of a 14-inch or 16-inch folding bicycle is 6.5-7.5 kilograms. Due to structural constraints, there is no folding vehicle below 6.5 kilograms on the market. However, when a folding bicycle weighs less than 6.5 kg or even less than 5 kg, it makes people feel comfortable to carry.
  • the frame and accessories of the folding bicycle are mostly made of aluminum alloy. It is impossible to make a breakthrough in the material, because the only alloy that can replace the aluminum alloy is magnesium alloy and titanium alloy, but the two materials are actually produced due to the cost.
  • the present invention provides a 14-inch or 16-inch ultra-light folding bicycle.
  • the whole vehicle adopts a new configuration structure, and the vehicle accessories adopt a completely new design principle, while reducing accessories or materials. Affect the riding effect of the whole vehicle.
  • a folding bicycle including a seat, a front wheel, a rear wheel, a front wheel frame, and a front wheel
  • the connecting rod and the foot pedal are connected, the front wheel is mounted on the front wheel frame, the foot pedal is mounted on the connecting rod connected with the front wheel frame, and the hidden self-locking seat tube clamp and the longitudinal rotating shaft folding frame are also included.
  • the seat is mounted on the hidden self-locking seat tube clamp, the hidden self-locking seat tube clamp and the longitudinal shaft
  • the folding frame is fixedly connected, and the rear wheel is mounted on the lower left end of the longitudinal rotating shaft folding frame, wherein the brake is used to brake after the brake is used, and the tapered detachable riser is mounted on the front wheel frame.
  • the front wheel frame is coupled to the longitudinal shaft folding frame by a connecting rod connected to the front wheel frame, and the foot pedal drives the rear wheel to rotate through the steel plate transmission system when the folding bicycle travels.
  • the concealed self-locking seat tube clamp comprises a tapered middle tube head, a tapered C washer and a seat tube, wherein: the tapered C washer pad is in the conical inner tube head, the cone The C-shaped gasket is identical in taper to the tapered middle tube head and is inserted into the tapered C-washer.
  • the longitudinal hinge folding frame comprises a folding shaft, a folded rear frame, an elastic rubber block and a card slot, wherein: the folded rear frame realizes longitudinal folding of the folding vehicle through the folding rotating shaft, the elastic rubber The block is fixed on the folded rear frame, and the elastic rubber block is snapped into the card slot when the folding bicycle is in use.
  • the brake includes a pressing rod, a supporting member, a pressing rod friction block, a pressure rod slider, a brake wire and a fastening member, and the supporting member is mounted on the longitudinal shaft folding frame by the fastening member Providing support for the pressing rod; the pressing rod is mounted on a supporting member, the pressing rod friction block is mounted at one end of the pressing rod, and the other end of the pressing rod and the pressing rod slider Connecting; the plunger is also connected to the brake wire. .
  • the tapered detachable riser includes a handlebar vertical pipe conical head, a frame head pipe conical head, a pressing block and a frame head pipe, wherein: the frame head pipe conical head passes The pressing block is pressed against the frame head tube, and the tapered head of the handlebar is fitted into the tapered head of the frame head tube during use to taper.
  • the steel sheet transmission system includes a sprocket wheel, a perforated steel sheet and a rear flywheel, wherein the perforated steel sheet is mounted on the outer circumference of the rear flywheel and the sprocket wheel.
  • crankset has a flat dental base.
  • the perforated steel sheet is a high-strength non-metal material made of a polymer material.
  • the weight of the 14-inch or 16-inch integral folding bicycle can be reduced by about 1080 grams, which is equivalent to the weight of the lightest 7 kilogram folding bicycle and the weight of more than 1 kilogram, thereby making the folding bicycle
  • the weight of the whole vehicle is less than 6 kg, which is more convenient to carry.
  • FIG. 1 is a schematic view showing the overall structure of a folding bicycle of the present invention.
  • FIG. 2 is a schematic view showing the structure of a concealed self-locking seat tube clamp according to the present invention.
  • FIG. 3 is a schematic structural view of a longitudinal hinge folding frame of the present invention.
  • Figure 4 is a partial schematic view showing the structure of the longitudinal hinge folding frame of the present invention.
  • Fig. 5 is a schematic front view showing the structure of the present invention.
  • Figure 6 is a perspective view of a perspective view of the present invention
  • Figure 7 is a schematic view showing the overall structure of a tapered detachable stem riser of the present invention.
  • Figure 8 is a schematic exploded view of the tapered detachable stem riser of the present invention.
  • Figure 9 is a perspective view showing the structure of the steel sheet transmission system of the present invention.
  • Figure 10 is a schematic view showing the structure of a perforated steel sheet and teeth of the steel sheet transmission system of the present invention.
  • a 14-inch or 16-inch ultra-light folding bicycle of the present invention comprises a concealed self-locking seat tube clamp 1, a longitudinal shaft folding frame 2, a brake 3, a tapered detachable handle riser. 4 and steel sheet drive system 5.
  • the concealed self-locking seat tube clamp 1 completely abandons the clamping principle of the conventional fixed beam, and the conventional structure such as the fixing bundle, the locking screw and the handle is removed, and the clamping of the seat tube can still be achieved.
  • the concealed self-locking seat tube clamp 1 includes a tapered middle tube head 11, a tapered C washer 12 and a seat tube 13, wherein the tapered C washer 12 is placed in the conical middle tube head 11, The tapered C washer 12 is identical in taper to the tapered middle head 11 and the seat tube 13 is inserted into the tapered C washer 12.
  • the tapered C washer 12 Due to the friction between the seat tube 13 and the tapered C washer 12, the tapered C washer 12 is closely engaged with the tapered middle head 11, and this close fitting results in the tapered C washer 12 and the seat tube. The friction between the 13 is greater, allowing the seat tube 13 to automatically taper.
  • This design of the seat tube 13 achieves the clamping function of the seat tube by reducing the material. This clamping method is simple to use and can reduce the weight of the whole vehicle by about 40 grams.
  • the longitudinal hinge folding frame 2 includes a folding shaft 21, a folded rear frame 22, an elastic rubber block 23, and a card slot 24.
  • the folded frame 22 realizes the longitudinal folding of the folding vehicle by folding the rotating shaft 21, and the elastic rubber block 23 has a shock absorbing effect and is fixed on the folded rear frame 22.
  • the elastic rubber block 23 is the stuck card.
  • the longitudinal hinge folding frame 2 does not require the folding of the conventional folding box, and the weight of the folding box is eliminated, so that the weight of the whole vehicle can be reduced by more than 400 grams.
  • the folding method is a longitudinal winding method, it is very convenient to fold in one step.
  • the brake 3 includes a pressing rod 35, a supporting member 36, a pressing rod friction block 31, a pressing rod slider 33, a brake wire 34, and a fastening member 32 through which the support member 36 passes.
  • 35 is mounted on the longitudinal hinge folding frame for supporting the pressing rod 35;
  • the pressing rod 35 is mounted on the supporting member 36, and the pressing rod 35 can swing up and down about the pressing point of the pressing rod which is in contact with the supporting member 36, and is pressed
  • One end of the rod 35 is mounted with a friction block 31, and the number of the friction blocks 31 is one, and the other end is connected to the pressure rod slider 33; the pressure rod slider 33 is also connected to the brake wire 34.
  • the brake wire 34 is fixed to the pressure rod slider 33, and the pressure rod 35 is pulled.
  • the pressure rod 35 is transmitted to the pressure rod friction block 31 through the pressure rod fulcrum, and the pressure rod friction block 31 presses the tire tube 6 to realize braking.
  • the tapered detachable handle riser 4 includes a handlebar standpipe tapered head 41, a safety screw 42, a frame head pipe tapered head 43 and a frame head pipe 25, and a frame head.
  • the tube conical head 43 is pressed against the frame head tube 25 by the pressing block 44, and the handlebar vertical tube conical head 41 is fitted into the frame head tube conical head 43 during use, and the two are taper-fitted. The cooperation is relatively close.
  • the threaded holes 45, 46 are respectively threaded on the frame tapered head 43 and the handlebar riser cone 41, and the safety screw 42 can be inserted into and engaged with the threaded holes 45, 46 in the handlebar. Lock two during use Conical fit.
  • the ordinary folding handle needs to be folded and retracted by the folding box, and the tapered detachable riser 4 can reduce the weight by about 300 grams without using the folding box.
  • the steel sheet transmission system 5 includes a sprocket wheel 51, a perforated steel sheet 52 and a rear flywheel 53, wherein the perforated steel sheet 52 is mounted on the outer circumference of the rear flywheel 53 and the sprocket wheel 51, and the perforated steel sheet is provided.
  • a hole 521 shown in FIG. 10
  • the rear flywheel 53 is mounted on the axle of the rear wheel of the bicycle.
  • the crankshaft 51 is provided with teeth 512, and the teeth 512 are matched with the holes 521 on the perforated steel sheet 52.
  • the perforated steel sheet 52 with the hole 521 is engaged with the crankset 51, and the flywheel 53 rotates to drive the whole vehicle forward.
  • the perforated steel sheet 52 has a simpler structure than the chain structure and has a weight of about 300 grams. In the specific production, the flexibility and strength of the steel sheet are important. To match the structure of the perforated steel sheet 52, the crankset 51 has a flat tooth base 511. For safety reasons, the perforated steel sheet 52 may be replaced by a high strength non-metallic material made of a polymer material.
  • the weight of a 14-inch or 16-inch integrated folding bicycle can be reduced by about 1080 grams, which is equivalent to the weight of the lightest 7 kilogram folding bike and the weight of more than 1 kilogram, which can make the weight of the folding bicycle. It is 6 kg or less and is more convenient to carry.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Abstract

一种折叠自行车，包括隐藏式自锁紧座管夹（1）、纵向转轴折叠车架（2）、一刹（3）、锥形可拆把立管（4）、钢片传动系统（5）。所述隐藏式自锁紧座管夹、所述一刹、所述锥形可拆把立管和所述钢片传动系统分别安装在所述纵向折叠车架上。通过本发明的技术方案可以使轮径14寸或者16寸折叠自行车的重量减轻1080克左右，从而使折叠自行车的整车重量达到6千克以下，更加方便携带。

Description

一种折叠自行车 技术领域
本发明涉及一种折叠自行车，尤其是一种超轻14寸或者16寸折叠自行车。
背景技术
折叠自行车最大的优点在于可折叠，方便携带。折叠自行车方便携带的关键因素是重量。重量轻的折叠自行车更受到消费者的欢迎。目前，轮径14寸或者16寸的折叠自行车的整车重量最轻在6.5-7.5公斤，由于结构的限制，目前市场上不存在低于6.5公斤的折叠整车。但是，当一个折叠自行车的重量低于6.5公斤甚至低于5公斤时，才能让人感觉到携带起来轻松。折叠自行车的车架和配件本身大多采用铝合金，材质上已经不可能有更大的突破，因为唯一可以替代铝合金的是镁合金和钛合金，但是这两种材料在实际生产中，由于成本高昂或者材料用在折叠车上的技术不成熟，一直不被实际生产上大批量使用。这样，如果要使得14寸或者16寸的折叠自行车重量突破目前的6.5公斤的极限，只有一种可能，就是改变现有整车车架和配件的结构，而且，这种改变必须是突破原有技术原理的，在原有技术原理上的结构改进是不能根本上解决这个问题的。
发明内容
针对上述现有折叠自行车存在的不足，本发明提供一种14寸或者16寸超轻折叠自行车，整车采用新的配置结构，整车配件采用全新的设计原理，在减少配件或材料的同时不影响整车骑行效果。
一种折叠自行车，包括车座、前车轮、后车轮、前车轮架、与前车轮 架连接的连杆和脚踏板，前车轮安装在前车轮架上，脚踏板安装在与前车轮架连接的连杆上，还包括隐藏式自锁紧座管夹、纵向转轴折叠车架、一刹、锥形可拆把立管、钢片传动系统；其中：车座安装在所述隐藏式自锁紧座管夹上，所述隐藏式自锁紧座管夹与所述纵向转轴折叠车架固定连接，后车轮安装在所述纵向转轴折叠车架左下端，所述一刹在使用时压紧后车轮实现刹车，所述锥形可拆把立管安装在前车轮架上，前车轮架通过与前车轮架连接的连杆与所述纵向转轴折叠车架连接，折叠自行车行进时，脚踏板通过所述钢片传动系统带动后车轮转动。
进一步地，所述隐藏式自锁紧座管夹包括锥形中管头、锥形C垫圈和座管，其中：所述锥形C垫圈垫在所述锥形中管头里，所述锥形C垫圈与所述锥形中管头的锥度相同并吻合使用，所述座管插入锥形C垫圈内。
进一步地，所述纵向转轴折叠车架包括折叠转轴、折叠后车架、弹性胶块和卡槽，其中：所述折叠后车架通过所述折叠转轴实现折叠车的纵向折叠，所述弹性胶块固定在所述折叠后车架上，当折叠自行车处于使用状态时，所述弹性胶块卡入所述卡槽中。
进一步地，所述一刹包括一条压杆、支承部件、压杆摩擦块、压杆拉头、刹车线和紧固部件，所述支承部件通过所述紧固部件安装于纵向转轴折叠车架上，其用于为所述压杆提供支承；所述压杆安装于支承部件上，所述压杆的一端安装所述压杆摩擦块，所述压杆的另一端与所述压杆拉头连接；所述压杆拉头还与所述刹车线连接。。
进一步地，所述锥形可拆把立管包括车把竖管锥形头、车架头管锥形头、压紧块和车架头管，其中：所述车架头管锥形头通过所述压紧块压紧在所述车架头管上，车把竖管锥形头在使用过程中套入车架头管锥形头里锥度配合。
进一步地，所述钢片传动系统包括牙盘、带孔钢片和后飞轮，其中，所述带孔钢片安装于后飞轮和牙盘的外周上。
进一步地，所述牙盘有一个平的牙基座。
进一步地，所述带孔钢片为高分子材料制成的高强度非金属材料。
通过采用本发明的技术方案，可以使轮径14寸或者16寸整体折叠自行车的重量减轻1080克左右，相当于目前重量最轻的7千克折叠车再减轻1千克以上的重量，从而使折叠自行车的整车重量达到6千克以下，更加方便携带。
附图说明
图1为本发明的折叠自行车的整体结构示意图。
图2为本发明的隐藏式自锁紧座管夹结构示意图。
图3为本发明的纵向转轴折叠车架结构示意图。
图4为本发明的纵向转轴折叠车架结构局部示意图。
图5为本发明的一刹的正视结构示意图。
图6为本发明的一刹的立体透视结构示意图
图7为本发明的锥形可拆把立管的整体结构示意图。
图8为本发明的锥形可拆把立管的分解结构示意图。
图9为本发明的钢片传动系统的立体结构示意图。
图10为本发明的钢片传动系统的带孔钢片和齿牙的结构示意图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，下面结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。
如图1所示，本发明的一种14寸或者16寸超轻折叠自行车，包括隐藏式自锁紧座管夹1、纵向转轴折叠车架2、一刹3、锥形可拆把立管4和钢片传动系统5。
隐藏式自锁紧座管夹1的结构完全摒弃了传统固定束的夹紧原理，去掉了固定束、锁紧螺丝、手柄等传统结构，仍然可以实现座管的夹紧。 如图2所示，隐藏式自锁紧座管夹1包括锥形中管头11、锥形C垫圈12和座管13，其中，锥形C垫圈12垫在锥形中管头11里，锥形C垫圈12与锥形中管头11的锥度相同并吻合使用，座管13插入锥形C垫圈12内。由于座管13与锥形C垫圈12之间的摩擦力，带动锥形C垫圈12与锥形中管头11之间紧密吻合，而这种紧密吻合，又导致锥形C垫圈12与座管13之间的摩擦力更大，使得座管13自动锥形锁紧。座管13的这种设计是通过减少材料的方式来实现座管的夹紧功能的。这种夹紧方式使用简单，可以使整车重量减轻40克左右。
如图3和图4所示，纵向转轴折叠车架2包括折叠转轴21、折叠后车架22、弹性胶块23和卡槽24。折叠后车架22通过折叠转轴21实现折叠车的纵向折叠，弹性胶块23具有减震效果，固定在折叠后车架22上，当折叠自行车处于使用状态时，弹性胶块23是卡入卡槽24中的。纵向转轴折叠车架2不需要传统折叠盒的折叠，省去了折叠盒的重量，可以使得整车重量减轻400克以上。同时由于折叠方式为纵向绕轴方式，一步折叠到位，非常方便。
如图5和图6所示，一刹3包括一条压杆35、支承部件36、压杆摩擦块31、压杆拉头33、刹车线34以及紧固部件32，支承部件36通过紧固部件35安装于纵向转轴折叠车架上，其用于为压杆35提供支承；压杆35安装于支承部件36上，并且压杆35可以绕其与支承部件36接触的压杆支点上下摆动，压杆35的一端安装有摩擦块31，并且摩擦块31的个数为一个，另一端与压杆拉头33连接；压杆拉头33还与刹车线34连接。在使用过程中，刹车线34与压杆拉头33固定，拉动压杆35，压杆35通过压杆支点传到压杆摩擦块31，压杆摩擦块31压紧外胎6即实现刹车。
如图7和图8所示，锥形可拆式把立管4包括车把竖管锥形头41、安全螺丝42、车架头管锥形头43和车架头管25，车架头管锥形头43通过压紧块44压紧在车架头管25上，车把竖管锥形头41在使用过程中套入车架头管锥形头43里，二者锥度配合，因此配合比较紧密。为了安全起见，要分别在车架锥形头43上和车把竖管锥形头41上打螺纹孔45、46，安全螺丝42可以插入螺纹孔45、46中并与之配合，在车把使用过程中锁定两个 锥形配合。普通折叠把立需要通过折叠盒来实现车把的折叠收放，而该锥形可拆把立管4不使用折叠盒，可以减轻重量300克左右。
如图9所示，钢片传动系统5包括牙盘51、带孔钢片52和后飞轮53，其中带孔钢片52安装于后飞轮53和牙盘51的外周上，带孔钢片上设有带孔521(如图10所示)，后飞轮53安装于自行车后车轮的轮轴上，牙盘51上设有齿牙512，齿牙512与带孔钢片52上的带孔521相匹配。如图10所示，带孔521的带孔钢片52与牙盘51配合带动后飞轮53转动，带动整车前行。带孔钢片52结构比链条结构简单，重量要轻300克左右。在具体生产中，钢片的柔韧性和强度很重要，为配合带孔钢片52的结构，牙盘51有一个平的牙基座511。为了安全起见，带孔钢片52可以用高分子材料制成的高强度非金属材料代替。
通过以上技术革新，轮径14寸或者16寸整体折叠自行车的重量可以减轻1080克左右，相当于目前重量最轻的7千克折叠车再减轻1千克以上的重量，可以使折叠自行车的整车重量达到6千克以下，更加方便携带。
以上所述实施例仅表达了本发明的实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (8)

  1. 一种折叠自行车，包括车座、前车轮、后车轮、前车轮架、与前车轮架连接的连杆和脚踏板，前车轮安装在前车轮架上，脚踏板安装在与前车轮架连接的连杆上，其特征在于，还包括隐藏式自锁紧座管夹、纵向转轴折叠车架、一刹、锥形可拆把立管、钢片传动系统；其中：车座安装在所述隐藏式自锁紧座管夹上，所述隐藏式自锁紧座管夹与所述纵向转轴折叠车架固定连接，后车轮安装在所述纵向转轴折叠车架左下端，所述一刹在使用时压紧后车轮实现刹车，所述锥形可拆把立管安装在前车轮架上，前车轮架通过与前车轮架连接的连杆与所述纵向转轴折叠车架连接，折叠自行车行进时，脚踏板通过所述钢片传动系统带动后车轮转动。
  2. 如权利要求1所述的折叠自行车，其特征在于，所述隐藏式自锁紧座管夹包括锥形中管头、锥形C垫圈和座管，其中：所述锥形C垫圈垫在所述锥形中管头里，所述锥形C垫圈与所述锥形中管头的锥度相同并吻合使用，所述座管插入锥形C垫圈内。
  3. 如权利要求2所述的折叠自行车，其特征在于，所述纵向转轴折叠车架包括折叠转轴、折叠后车架、弹性胶块和卡槽，其中：所述折叠后车架通过所述折叠转轴实现折叠车的纵向折叠，所述弹性胶块固定在所述折叠后车架上，当折叠自行车处于使用状态时，所述弹性胶块卡入所述卡槽中。
  4. 如权利要求3所述的折叠自行车，其特征在于，所述一刹包括一条压杆、支承部件、压杆摩擦块、压杆拉头、刹车线和紧固部件，所述支承部件通过所述紧固部件安装于纵向转轴折叠车架上，其用于为所述压杆提供支承；所述压杆安装于支承部件上，所述压杆的一端安装所述压杆摩擦块，所述压杆的另一端与所述压杆拉头连接；所述压杆拉头还与所述刹车线连接。
  5. 如权利要求4所述的折叠自行车，其特征在于，所述锥形可拆把立管包括车把竖管锥形头、车架头管锥形头、压紧块和车架头管，其中： 所述车架头管锥形头通过所述压紧块压紧在所述车架头管上，车把竖管锥形头在使用过程中套入车架头管锥形头里锥度配合。
  6. 如权利要求5所述的折叠自行车，其特征在于，所述钢片传动系统包括牙盘、带孔钢片和后飞轮，其中，所述带孔钢片安装于后飞轮和牙盘的外周上。
  7. 如权利要求6所述的折叠自行车，其特征在于，所述牙盘有一个平的牙基座。
  8. 如权利要求7所述的折叠自行车，其特征在于，所述带孔钢片为高分子材料制成的高强度非金属材料。
PCT/CN2014/001038 2014-11-20 2014-11-20 一种折叠自行车 WO2016077940A1 (zh)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067589A (en) * 1976-05-21 1978-01-10 Hon David T Foldable bicycle
CN2101633U (zh) * 1991-06-05 1992-04-15 周秉华 超轻型折叠式自行车
CN2205349Y (zh) * 1994-12-05 1995-08-16 孟志平 全折叠小轮自行车
CN101700798A (zh) * 2009-11-16 2010-05-05 西南交通大学 便携式伸缩折叠自行车
CN104401436A (zh) * 2014-11-20 2015-03-11 太仓市哲泰天产品设计有限公司 一种折叠自行车
CN204197175U (zh) * 2014-11-20 2015-03-11 太仓市哲泰天产品设计有限公司 一种折叠自行车

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067589A (en) * 1976-05-21 1978-01-10 Hon David T Foldable bicycle
CN2101633U (zh) * 1991-06-05 1992-04-15 周秉华 超轻型折叠式自行车
CN2205349Y (zh) * 1994-12-05 1995-08-16 孟志平 全折叠小轮自行车
CN101700798A (zh) * 2009-11-16 2010-05-05 西南交通大学 便携式伸缩折叠自行车
CN104401436A (zh) * 2014-11-20 2015-03-11 太仓市哲泰天产品设计有限公司 一种折叠自行车
CN204197175U (zh) * 2014-11-20 2015-03-11 太仓市哲泰天产品设计有限公司 一种折叠自行车

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