WO2012174921A1 - 一种折叠车架 - Google Patents

一种折叠车架 Download PDF

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Publication number
WO2012174921A1
WO2012174921A1 PCT/CN2012/073633 CN2012073633W WO2012174921A1 WO 2012174921 A1 WO2012174921 A1 WO 2012174921A1 CN 2012073633 W CN2012073633 W CN 2012073633W WO 2012174921 A1 WO2012174921 A1 WO 2012174921A1
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WO
WIPO (PCT)
Prior art keywords
handle
folding frame
fixing
folding
fixed shaft
Prior art date
Application number
PCT/CN2012/073633
Other languages
English (en)
French (fr)
Inventor
蔡建军
韩德玮
吴建华
程书俊
Original Assignee
大行科技(深圳)有限公司
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 大行科技(深圳)有限公司 filed Critical 大行科技(深圳)有限公司
Priority to JP2014516172A priority Critical patent/JP5816746B2/ja
Priority to EP12802636.6A priority patent/EP2724923A4/en
Publication of WO2012174921A1 publication Critical patent/WO2012174921A1/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
    • B62K15/00—Collapsible or foldable cycles
    • B62K15/006—Collapsible or foldable cycles the frame being foldable

Definitions

  • the utility model relates to a folding frame for folding bicycles and assisting electric vehicles. Background technique
  • FIG. 200820146783. 4 discloses a bicycle folding device, which has a top rod and a ejector on the handle connected to the leading edge. One end is fixed on the handle fixed shaft of the handle, and the other end is connected with the roller shaft which can be tightly pressed into the two lugs of the front edge of the folding device. If the handle of the folder is mounted on the frame, the side of the chain is provided. When the distance between the five-way and the folder is short, so that the chain block blocks the handle, the folder is inconvenient to use. Utility model content
  • the utility model aims to provide a novel folding frame which is convenient to operate, and can effectively prevent the interference between the chain plate and the locking device.
  • the utility model is realized as follows:
  • the utility model relates to a folding frame, which is composed of a foldable front and rear two sections.
  • the front end of the forearm is hinged on one side with the front end of the middle arm, and the other side is provided with a locking device.
  • the locking device comprises a handle and a fixing rod, and the handle a fixed shaft that is hingedly disposed on a section of the folding frame, the fixed shaft protrudes from the folding frame, and the handle is provided with a ram, the front end of the ejector pin can be placed against the other frame and the parallel shaft is disposed Fixed rod.
  • the fixing shaft end is provided with a card slot, the card slot can accommodate a spring piece, and the fixing shaft fixes the handle by the spring piece.
  • a torsion spring is disposed on the fixed shaft, and the torsion spring is disposed at a hinge of the handle and the fixed shaft.
  • the fixed shaft and the fixed rod are perpendicular to the center reference plane of the frame, and the rotating surface of the handle is parallel to the center reference surface of the frame.
  • the handle is provided with a fixing member, and the top rod is adjustably disposed on the fixing member.
  • the fixing member is a ejector fixing cap provided with an internal thread, and the ejector rod is provided with an external thread to cooperate with the ejector fixing cap.
  • the fixing member is a ejector fixing shaft provided with a threaded hole.
  • the handle is provided with a side plate, the side plate is adjacent to the surface of the folding frame, the side plate is provided with a groove, the side plate is away from the surface of the frame, and the side plate is provided with a through hole for accommodating the fixed shaft,
  • the fixing member is arranged between the side plates.
  • the groove is arcuate.
  • the front arm or the middle arm is provided with a protruding step, and the outer surface of one end of the side plate is disposed on the step protruding from the forearm or the middle arm, and the outer surface of the end of the side plate is provided with an arc-shaped protrusion
  • the protrusion and the step protruding from the forearm or the middle arm limit the handle.
  • the utility model provides a folding frame, which can be locked up and down by a handle, which can lock or loosen the locking device, is more convenient to use, has convenient operation and simple structure, and the folding frame disclosed by the utility model even if The handle of the chain plate and the locking device overlaps in the longitudinal direction of the folding frame and does not affect the operation of the locking device.
  • Figure 1 is a schematic view of the folding frame of the present invention
  • FIG. 2 is a schematic view showing the state of the handle when the folding frame of the present invention is locked
  • FIG. 3 is a schematic view showing the state of the handle when the handle of the folding frame of the present invention is released;
  • Figure 4 is a perspective view of the folding frame of the present invention when it is released;
  • Figure 5 is a partial enlarged view of the folding frame of the utility model when it is released;
  • Figure 6 is a perspective view of the folding frame of the present invention when locked
  • Figure 7 is a partial enlarged view of the folding frame of the utility model when it is locked
  • Figure 8 is a perspective view of a handle structure of the folding frame of the present invention.
  • Figure 9 is a perspective view of another handle structure of the folding frame of the present invention.
  • Figure 10 is an assembled view of the handle and the fixed shaft of the folding frame of the present invention. detailed description
  • a folding frame consisting of a foldable front and rear sections, as shown in Figures 1-3, including a forearm 2, a middle arm 3, a seat tube 5, a five-way 7, a rear fork 6, and a locking device 1
  • the middle arm 3 and the rear fork 6 are respectively connected to the seat tube 5
  • Fig. 2 is a state diagram when the folding frame is locked
  • Fig. 3 is a state diagram when the folding frame is released.
  • the rear end side of the front arm 1 is rotatably connected to the front end side of the middle arm 3, and the locking device 1 is disposed on the other side.
  • the locking device includes a handle 11 and a fixing rod 15, respectively, and the handle 11 and the fixing rod 15 are respectively located on the folding frame.
  • the handle 11 is arranged on the forearm 2 or the middle arm 3
  • the fixing rod 15 is arranged on the middle arm 3 or on the forearm 2
  • the handle 11 and the fixed rod 15 are respectively located on the folded two sections of the folding frame, as shown in Fig.
  • the middle arm 3 is provided with a fixed shaft 16, the fixed shaft 16 protrudes from the middle arm of the frame, and the handle 11 is fixed by
  • the shaft 16 is rotatably disposed on the middle arm 3, and the front arm 1 is provided with a fixing rod 15 parallel to the fixed shaft 16.
  • the fixed shaft 16 and the fixed rod 15 are perpendicular to the folding frame center reference surface H.
  • the rotating surface of the handle 11 is parallel to the frame center reference surface H, that is, parallel to the disk surface of the chain plate 4, so that when the chain plate 4 is mounted on the five-way 7, it protrudes from the folding frame in the lateral direction of the folding frame.
  • the handle 11 even if the distance between the five-way 7 and the handle 11 is short, so that the chain plate 4 and the handle 11 are coincident in the longitudinal direction of the folding frame, as shown in Fig. 1, the folding frame can be easily locked or loosened. .
  • the handle 11 is provided with a jack 17 which is pressed to the dead point, and the jack 17 abuts against the fixing rod 15, that is, when the center of the fixed shaft 16, the fixed rod 15 and the top rod 17 are fixed.
  • the line is on the same plane, and the folding frame is tightly locked. Due to the friction between the fixing rod 15 and the ram 17, the handle 11 is not easily rotated.
  • the handles 11 are provided with side plates 112, 11 3 on both sides, and the side plates 11 3 are close to the folding frame surface, 112 is away from the frame surface, and the side plates 112, 11 3 are provided with through holes.
  • the fixing shaft 16 passes through the through hole 116 of the side plates 112, 11 3 , and the end of the fixing shaft 16 is provided with a card slot, and the handle 11 is fixed by accommodating the spring piece 19 in the card slot, the two A fixing member is disposed between the side plates 112 and 11 3 , and the top rod 17 is disposed on the fixing member.
  • the fixing member is a top rod fixing cap 111 having an inner screw hole. As shown in FIG. 8 , the top rod 17 is provided.
  • the fixing member can also be a top with a threaded hole 119.
  • the rod fixing shaft 118 as shown in FIG. 9, the top rod fixing shaft 118 is fixed to the handle 11 through the connecting hole 117 on the handle 11, and the side plate 11 3 is provided with an arc-shaped groove 115, and the handle 11 is locked.
  • the fixing rod 15 is arranged in the groove 115 along the arc of the groove 115, and the side plate 11 3 is provided with the through hole 116-end.
  • the outer surface is attached to the step 20 of the middle arm 3 or the forearm 1 , and the outer surface of the outer surface is provided with an arc-shaped protrusion 114.
  • the handle 11 When the handle 11 is rotated clockwise or counterclockwise, the end of the protrusion 114 Restricting the step of the forearm 1 or the middle arm 3, but when the folding frame is locked, the position of the handle 11 is within the range of its rotation, even when the folding frame is folded, even if the handle 11 is rotated to the extreme position When the folding frame is unfolded and locked, the handle 11 only needs to be rotated by a small angle.
  • the handle 11 is flush with the frame at the position where it is located, and the locking device is not easily loosened by accident.
  • the forearm 2 and the middle arm 3 are connected by the first folded body 12 and the second folded body 13 , as shown in FIGS. 4-7 , the first folded body 12 is welded on the forearm 2 , The second folding body 1 3 is welded to the middle arm 3, the first folding body 12 and the second folding body 13 are hinged by the hinge shaft 14, and the side plate 11 3 is provided with a hinge hole 116 - the outer surface of the end is attached to the first folding On the body 12 or the second folded body 1 3, the protrusion 114 of the outer surface of the side plate 11 3 The end portion is restrained against the side of the first folded body 12 or the second folded body 13.
  • the handle 11 is quickly offset, and a torsion spring 18 is provided at the hinge of the handle 11 and the fixed shaft 16.
  • a torsion spring 18 is provided at the hinge of the handle 11 and the fixed shaft 16.
  • the end of the fixed shaft 16 is provided with a card slot, the card slot can accommodate the spring piece 19, and the spring piece 19 is placed outside the handle 11 to fix the handle 11 to the fixed shaft 16.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)

Abstract

一种折叠车架，由可折叠的前、后两段构成。前段是前臂（2），后段是中臂（3），前臂（2）后端与中臂（3）前端在一侧铰接，另一侧设有锁紧装置（1）。锁紧装置（1）包括手柄（11）和固定杆（15），所述手柄（11）铰接于折叠车架一段上设置的固定轴（16），所述固定轴（16）突出于折叠车架，手柄（11）上设有顶杆（17），所述顶杆（17）前端可顶住另一段车架上与固定轴（16）平行设置的所述固定杆（15）。该锁紧装置（1）更符合使用习惯，操作方便，结构简单，且锁紧装置（1）不会与链盘干涉，实用性强。

Description

一种折叠车架 技术领域
本实用新型涉及一种用于折叠自行车、 助力电动车的折叠车架。 背景技术
自行车因健身、 环保， 在我国深受消费者喜爱， 近些年， 折叠自行车因占地空间小、 携带方便深受追捧， 其中折叠车架是折叠自行车的主干， 折叠器又是折叠车架上重要的部 件， 特别的折叠接头用于不同车架上可以产生不一样的效果， 中国专利 200820146783. 4 公开一种自行车折叠器， 该折叠器与前缘连接的手柄上设有顶杆， 顶杆一端固定于手柄上 的顶杆固定轴上， 另一端与可紧配压入折叠器前缘两个凸耳中的滚筒轴连接， 此折叠器手 柄若安装于车架上设有链盘一侧， 当五通与折叠器的距离短， 以致链盘挡住手柄时， 则折 叠器不便使用。 实用新型内容
本实用新型旨在提供一种操作方便的新型折叠车架， 且能有效防止链盘与锁紧装置的 干涉。
本实用新型是这样实现的：
一种折叠车架， 由可折叠的前、 后两段构成， 前臂后端与中臂前端在一侧铰接， 另一 侧设有锁紧装置， 锁紧装置包括手柄和固定杆， 所述手柄铰接于折叠车架一段上设置的固 定轴， 所述固定轴突出于折叠车架，手柄上设有顶杆， 所述顶杆前端可顶住另一段车架上 与固定轴平行设置的所述固定杆。
所述固定轴端部设有卡槽， 所述卡槽可容置弹簧片， 所述固定轴通过所述弹簧片使手 柄固定。
所述固定轴上设有扭簧， 所述扭簧置于手柄与固定轴的铰接处。
所述固定轴和固定杆垂直于车架中心基准面， 手柄所在旋转面平行于所述车架中心基 准面。
所述手柄上设有固定件， 顶杆可调节地设于所述固定件上。
所述固定件为设有内螺紋的顶杆固定帽， 所述顶杆设有外螺紋与顶杆固定帽配合。 所述固定件为设有螺紋孔的顶杆固定轴。 所述手柄设有侧板， 侧板靠近折叠车架表面， 所述侧板上设有凹槽， 侧板远离车架表 面， 所述侧板上设有容置固定轴的通孔， 所述固定件设于侧板间。
所述凹槽为弧状。
所述前臂或中臂设有突出的台阶， 所述侧板设有通孔一端的外表面贴合在前臂或中臂 突出的台阶上， 所述侧板该端的外表面设有一段弧状的突起， 所述突起和前臂或中臂突出 的台阶对手柄限位。
本实用新型提供的一种折叠车架， 上下扳动手柄， 可锁紧或松开锁紧装置， 更符合使 用习惯， 操作方便， 结构也比较简单， 并且本实用新型揭露的折叠车架， 即使链盘与锁紧 装置的手柄在折叠车架的纵向方向上有重合， 也不会影响锁紧装置的操作。 附图说明
图 1是本实用新型折叠车架的示意图；
图 2是本实用新型折叠车架锁紧时的手柄状态示意图；
图 3是本实用新型折叠车架手柄松开时的手柄状态示意图；
图 4是本实用新型折叠车架松开时的立体图；
图 5时本实用新型折叠车架松开时的局部放大图；
图 6是本实用新型折叠车架锁紧时的立体图；
图 7时本实用新型折叠车架锁紧时的局部放大图；
图 8是本实用新型折叠车架一种手柄结构的立体图；
图 9是本实用新型折叠车架另一种手柄结构的立体图；
图 10是本实用新型折叠车架手柄与固定轴的装配图。 具体实施方式
下面结合附图对本实用新型做进一步说明。
一种折叠车架， 由可折叠的前、 后两段构成， 如图 1-3所示， 包括前臂 2、 中臂 3、 座管 5、 五通 7、 后叉 6和锁紧装置 1 , 中臂 3和后叉 6分别连接在座管 5上， 图 2为折叠 车架锁紧时的状态图， 图 3为折叠车架松开时的状态图。
前臂 1后端一侧与中臂 3前端一侧可转动连接， 锁紧装置 1设置在另一侧， 锁紧装置 包括手柄 11和固定杆 15 , 手柄 11和固定杆 15分别位于折叠车架的两段上， 即前臂 2和 中臂 3上， 手柄 11设在前臂 2或中臂 3上， 则固定杆 15设在中臂 3上或前臂 2上， 手柄 11和固定杆 15正好分别位于折叠车架折叠的两段上， 如图 4-7所示， 中臂 3上设有固定 轴 16 , 固定轴 16突出于车架的中臂， 手柄 11通过固定轴 16可转动地设置于中臂 3上， 前臂 1上设有与固定轴 16平行的固定杆 15 , 优选方案为所述固定轴 16和固定杆 15垂直 于折叠车架中心基准面 H , 则手柄 11所在旋转面平行于车架中心基准面 H , 也即平行于链 盘 4的盘面， 故当链盘 4装设于五通 7上， 在折叠车架横向方向上突出于折叠车架的手柄 11 , 即使由于五通 7与手柄 11的距离短， 以致链盘 4与手柄 11在折叠车架的纵向方向上 有重合， 如图 1所示， 折叠车架仍能方便锁紧或松开。
如图 6、 图 7所示， 手柄 11上设有顶杆 17 , 当手柄 11转至死点， 顶杆 17抵紧固定 杆 15 , 即当固定轴 16、 固定杆 15及顶杆 17的中心线在同一平面上， 折叠车架紧紧锁住， 由于固定杆 15与顶杆 17间的摩擦力， 手柄 11不易转动。
如图 4、 图 5所示， 当转动手柄 11 , 使顶杆 17脱离固定杆 15时， 折叠车架的前臂 1 和中臂 3可相对转动， 折叠车架可折叠。
如图 8、 图 9所示， 手柄 11两侧设有侧板 112、 11 3 , 侧板 11 3靠近折叠车架表面， 112远离车架表面， 两侧板 112、 11 3上设有通孔 116 , 所述固定轴 16穿过侧板 112、 11 3 上的通孔 116 , 固定轴 16端部设有卡槽， 通过在所述卡槽容置弹簧片 19将手柄 11固定， 所述两侧板 112、 11 3间设有固定件， 顶杆 17设于固定件上， 所述固定件为设有内螺孔的 顶杆固定帽 111 , 如图 8所示， 所述顶杆 17设有外螺紋， 调节顶杆 17在顶杆固定帽 111 上所处的位置， 可调整折叠车架折叠或松开的难易程度及锁紧程度， 固定件也可为设有螺 紋孔 119的顶杆固定轴 118 , 如图 9所示， 所述顶杆固定轴 118穿过手柄 11上的连接孔 117固定于手柄 11上， 侧板 11 3上设有弧状凹槽 115 , 手柄 11在锁紧折叠车架过程中， 固定杆 15沿凹槽 115的弧状， 容置于凹槽 115中， 侧板 11 3设有通孔 116—端的外表面 贴合在中臂 3或前臂 1突出的台阶 20上， 该外表面的贴合面上设有一段弧状的突起 114 , 手柄 11顺时针或逆时针转动时， 所述突起 114的端部顶住前臂 1或中臂 3的台阶而限位， 但折叠车架锁紧时， 手柄 11所处的位置在其转动的范围之内， 当折叠车架折叠后， 即使 手柄 11转动到极限位置， 当折叠车架展开锁紧时， 手柄 11仅需转动较小的角度。 折叠车 架锁紧时， 手柄 11与其所处位置的车架平齐， 则锁紧装置不易因意外而松开。
针对上述技术方案改进的技术方案中， 前臂 2和中臂 3通过第一折叠体 12和第二折 叠体 1 3连接， 如图 4-7所示， 第一折叠体 12焊接在前臂 2上、 第二折叠体 1 3焊接在中 臂 3上， 第一折叠体 12与第二折叠体 1 3通过铰轴 14铰接， 侧板 11 3设有铰接孔 116— 端的外表面贴合在第一折叠体 12或第二折叠体 1 3上， 所述侧板 11 3外表面的突起 114的 端部顶住第一折叠体 12或第二折叠体 13的侧部而限位。
为使车架松开后， 手柄 11快速偏移， 在手柄 11与固定轴 16铰接处设有扭簧 18 , 如 图 10所示， 当松开手柄 11时， 扭簧 18的扭力使固定杆 15与顶杆 17快速脱离， 车架可 快速折叠， 扭簧 18对车架锁紧时的可靠度不造成影响。 固定轴 16端部设有卡槽， 卡槽可 容置弹簧片 19 , 弹簧片 19置于手柄 11的外侧使手柄 11固定于固定轴 16上。
本实用新型并非仅限于上述实施例， 凡依本实用新型申请范围所述的构造、 特征及原 理所作的等效变化或替代， 均应包含于本实用新型的申请范围。

Claims

权利要求
1、 一种折叠车架， 由可折叠的前、 后两段构成， 前臂 （2)后端与中臂 （3) 前端在 一侧铰接， 另一侧设有锁紧装置 （1 ), 其特征在于， 锁紧装置 （1) 包括手柄 （11 )和固 定杆（ 15 ), 所述手柄（ 11 )铰接于折叠车架一段上设置的固定轴（ 16 ), 所述固定轴（ 16 ) 突出于折叠车架， 手柄 （11 )上设有顶杆（17), 所述顶杆（17)前端可顶住另一段车架 上与固定轴（ 16 )平行设置的所述固定杆 ( 15 )。
2、 根据权利要求 1所述的折叠车架， 其特征在于， 所述固定轴（16)端部设有卡槽， 所述卡槽可容置弹簧片 （19), 所述固定轴（16)通过所述弹簧片使手柄 （11) 固定。
3、根据权利要求 1所述的折叠车架，其特征在于，所述固定轴（ 16 )上设有扭簧（ 18 ), 所述扭簧（ 18 )置于手柄 （ 11 ) 与固定轴（ 16 ) 的铰接处。
4、 根据权利要求 1所述的折叠车架， 其特征在于， 所述固定轴（ 16 )和固定杆（ 15 ) 垂直于车架中心基准面（H), 手柄 （11)所在旋转面平行于所述车架中心基准面 00。
5、 根据权利要求 1所述的折叠车架， 其特征在于， 所述手柄 （11)上设有固定件， 顶杆（Π)可调节地设于所述固定件上。
6、 根据权利要求 5所述的折叠车架， 其特征在于， 所述固定件为设有内螺紋的顶杆 固定帽 （ 111 ), 所述顶杆（ 17 )设有外螺紋与顶杆固定帽 （ 111 ) 配合。
7、 根据权利要求 5所述的折叠车架， 其特征在于， 所述固定件为设有螺紋孔（119) 的顶杆固定轴（118)。
8、 根据权利要求 5-7任一项所述的折叠车架， 其特征在于， 所述手柄 （11 )设有侧 板（112、 113), 侧板（113) 靠近折叠车架表面， 所述侧板（113)上设有凹槽（115), 侧板（II2)远离车架表面， 所述侧板（ II2、 113)上设有容置固定轴（16)的通孔（116), 所述固定件设于侧板（112、 113) 间。
9、 根据权利要求 8所述的折叠车架， 其特征在于， 所述凹槽（115) 为弧状。
10、 根据权利要求 8所述的折叠车架， 其特征在于， 所述前臂（ 1 )或中臂（ 3)设有 突出的台阶， 所述侧板（113)设有通孔（116)—端的外表面贴合在前臂（2)或中臂（3) 突出的台阶上，所述侧板（ 113 )该端的外表面设有一段弧状的突起（ 114 ),所述突起（114) 和前臂（ 2 )或中臂（ 3 ) 突出的台阶对手柄 （ 11 ) 限位。
PCT/CN2012/073633 2011-06-23 2012-04-09 一种折叠车架 WO2012174921A1 (zh)

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