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WO2013016958A1 - 一种折叠车架 - Google Patents

一种折叠车架 Download PDF

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Publication number
WO2013016958A1
WO2013016958A1 PCT/CN2012/073700 CN2012073700W WO2013016958A1 WO 2013016958 A1 WO2013016958 A1 WO 2013016958A1 CN 2012073700 W CN2012073700 W CN 2012073700W WO 2013016958 A1 WO2013016958 A1 WO 2013016958A1
Authority
WO
WIPO (PCT)
Prior art keywords
groove
handle
middle arm
folding frame
arm
Prior art date
Application number
PCT/CN2012/073700
Other languages
English (en)
French (fr)
Inventor
韩德玮
贺新星
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
Publication of WO2013016958A1 publication Critical patent/WO2013016958A1/zh

Links

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
    • B62K15/008—Collapsible or foldable cycles the frame being foldable foldable about 2 or more axes

Definitions

  • the utility model relates to a folding frame mainly used for folding bicycles and folding electric vehicles. Background technique
  • the utility model provides a folding frame with a locking structure hidden in view of the above problems.
  • Another object of the present invention is to provide a folding frame that is safe, reliable, beautiful, and simple in structure.
  • the utility model is realized as follows:
  • a folding frame includes a forearm and a middle arm hinged on one side, the forearm and the middle arm being provided with a groove at a joint of the other side, the groove including a first groove and a seat at the forearm a second groove of the middle arm, the first groove and the second groove are respectively provided with a handle and a top shaft, the handle can be accommodated in the groove, and the handle is provided with a ejector, The ram can tighten the top shaft.
  • the first groove is provided with a top shaft, and the second groove is provided with a handle through the second hinge shaft.
  • the top shaft is vertically disposed with the top rod.
  • the forearm and the middle arm are hinged by a first hinge shaft, and an angle ⁇ between the first hinge shaft and the rear wheel axis of the middle arm projected in a horizontal plane is 5° to 12°.
  • the first hinge axis is parallel to the second hinge axis.
  • the groove is located at an upper end of the front arm and the middle arm, and a lower end of the front arm and the middle arm is provided with a first hinge shaft.
  • the groove is located on the left side of the forearm and the middle arm, the first hinge axis is located on the right side of the forearm and the middle arm, and the first hinge shaft is vertically disposed.
  • the groove is located on the right side of the forearm and the middle arm, the first hinge axis is located on the left side of the forearm and the middle arm, and the first hinge shaft is vertically disposed.
  • the second hinge shaft is provided with a torsion spring, and the torsion spring is disposed between the two lugs of the handle.
  • the side of the handle is attached to the inner wall of the groove.
  • the utility model discloses a folding frame, wherein the handle is accommodated in the groove, so that the riding safety and the appearance are good, the groove is placed on the upper end of the forearm and the middle arm, and the first hinge shaft is placed on the forearm.
  • the lower end of the middle arm, the frame is stable, effectively avoiding the possibility of loosening the handle due to the force, and the rider can easily visually recognize the position and state of the handle, and is convenient to operate.
  • Figure 1 is a perspective view of the folding frame of the present invention
  • FIG. 2 is a schematic plan view of the first hinge shaft and the rear wheel axis L of the folding frame of the present invention in a horizontal plane;
  • FIG. 3 is a plan view of the folding frame of the present invention;
  • Figure 4 is a partial cross-sectional view of the folding frame of the present invention.
  • Figure 5 is a development view of the folding frame of the present invention.
  • Figure 6 is a partial enlarged view of the folding frame of the present invention. detailed description
  • a folding frame as shown in FIGS. 1-4, includes a forearm 1 and a middle arm 2, the forearm 1 and the middle arm 2 are hinged at a lower end by a first hinge shaft 5, and the upper ends of the front arms 1 and the middle arms 2 are connected
  • the groove 3 includes a first groove 31 at the front arm and a second groove 32 at the middle arm 2.
  • the first groove 31 is provided with a top shaft 4, and the second groove 32 is provided.
  • the handle 7 is provided with a side plate 71 on the side, and the handle 7 is provided with two lugs 72 at the end, and the handle 7 is laterally disposed with a hinge hole and passes through the two lugs 72, the two lugs 72
  • a torsion spring 9 is disposed between the second hinge shaft 6 and the torsion spring 9 to connect the handle 7 to the middle arm 2, and the radiation legs at the two ends of the torsion spring 9 respectively fall on the bottom of the groove 3 and the handle
  • the handle 7 can be received in the recess 3
  • the handle 7 is provided with a jack 8 which is perpendicular to the top shaft 4, when the tail end of the handle 7 faces the first recess 31
  • the jack 8 is placed on the top shaft 4, and the front arm 1 and the middle arm 2 of the folding frame are fixed by the cooperation of the jack 8 and the top shaft 4.
  • the function of the torsion spring 9 is that when the folding frame is released, the beam of the torsion spring 9 causes the handle 7 to bounce, preventing the front arm 1 and the middle arm 2 of the frame from being engaged, and the handle 7 is under the action of gravity. Between the forearm 1 and the middle arm 2. During use, the handle 7 is placed in the recess 3, which is not easy to touch, reducing the possibility of accidental loosening of the frame during use, and the forearm 1 and the middle arm 2 of the folding frame are mainly stressed upward, the forearm The joint between the upper end of 1 and the middle arm 2 is under pressure, so the folding frame is safe and reliable.
  • the recess 3 is placed at the upper end of the front arm 1 and the middle arm 2, and the lower end of the first hinge shaft 5 at the front arm 1 and the middle arm 2 is a preferred embodiment of the present invention, and the user can conveniently visually lock the frame.
  • groove 3 is located on the left side of the forearm 1 and the middle arm 2
  • the first hinge shaft 5 is located on the right side of the front arm 1 and the middle arm 2, and accordingly, the hinge shaft is vertically disposed, which is also achievable.
  • the angle ⁇ of the first hinge shaft 5 and the rear wheel axis L of the middle arm 2 projected in the horizontal plane is 5° to 12°, preferably 7°, as shown in FIG. 2, when the first hinge shaft 5 and the second hinge shaft 6 are arranged in parallel, the handle 7 rotates along the folding direction of the frame, and the folding frame is more reasonable, and when locked, Robust, as shown in Figure 6.
  • the side of the handle 7 is attached to the inner wall of the recess 3, and the structure is more compact. There is a gap between the tail end of the handle 7 and the wall of the recess 3. When the frame needs to be folded, it is easy to manipulate the tail end of the handle 7, and release the forearm 1 and the middle. Arm 2.
  • the top shaft 4 is disposed in the first recess 31, and the handle 7 is disposed in the second recess 32.
  • the top shaft is disposed in the second recess, and the handle is disposed in the first recess.

Landscapes

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

Abstract

本实用新型提供一种折叠车架，主要用于折叠自行车、折叠电动车的折叠车架上，包括在一边铰接的前臂和中臂，所述前臂和中臂在另一边的连接处设有凹槽，所述凹槽包括位于所述前臂的第一凹槽和位于所述中臂的第二凹槽，所述第一凹槽、第二凹槽分别设有手柄、顶轴，所述手柄可容置于所述凹槽中，所述手柄设有顶杆，所述顶杆可顶紧所述顶轴。本实用新型具有良好的骑乘安全性和美观性，且操作方便、快捷。

Description

一种折叠车架 技术领域
本实用新型涉及一种主要用于折叠自行车、 折叠电动车的折叠车架。 背景技术
自行车因健身、 环保， 在人们的休闲、 生活中越来越受欢迎， 其中， 折叠自行车携带 方便， 深受众人喜爱， 各种折叠车架应运而生， 但市面上折叠车架因锁紧装置置于车架的 表面， 折叠自行车在骑行的过程中， 锁紧装置容易因意外原因而松开， 如骑行者的腿在脚 踏过程中， 触碰锁紧装置， 或者由于不经意间的动作， 松开锁紧装置， 带来安全隐患。 实用新型内容
本实用新型针对上述问题提供一种锁紧结构隐藏的折叠车架。
本实用新型的另一目的是提供一种安全、 可靠、 美观、 结构简单的折叠车架。
本实用新型是这样实现的：
一种折叠车架， 包括在一边铰接的前臂和中臂， 所述前臂和中臂在另一边的连接处设 有凹槽， 所述凹槽包括位于所述前臂的第一凹槽和位于所述中臂的第二凹槽， 所述第一凹 槽、 第二凹槽分别设有手柄、 顶轴， 所述手柄可容置于所述凹槽中， 所述手柄设有顶杆， 所述顶杆可顶紧所述顶轴。
所述第一凹槽设有顶轴， 所述第二凹槽通过第二铰轴设有手柄。
折叠车架锁合时， 所述顶轴与顶杆垂直设置。
所述前臂和中臂通过第一铰轴铰接， 所述第一铰轴与中臂的后轮轴线在水平面内投影 的夹角 α为 5°到 12°。
所述第一铰轴与所述第二铰轴平行。
所述凹槽位于前臂和中臂的上端， 前臂和中臂的下端设置第一铰轴。
所述凹槽位于前臂和中臂的左侧， 第一铰轴位于前臂和中臂的右侧， 所述的第一铰轴 竖向设置。
所述凹槽位于前臂和中臂的右侧， 第一铰轴位于前臂和中臂的左侧， 所述的第一铰轴 竖向设置。
所述第二铰轴上设有扭簧， 所述扭簧置于手柄的两凸耳之间。 所述手柄侧面与凹槽内壁贴合。
本实用新型揭露的一种折叠车架， 其手柄容置于凹槽中， 故具有良好的骑乘安全性和 美观性， 凹槽置于前臂、 中臂上端， 第一铰接轴置于前臂、 中臂下端， 车架稳固， 有效避 免因受力使手柄松开的可能， 且骑乘者容易目视到手柄位置及其状态， 操作方便。 附图说明
图 1是本实用新型折叠车架的立体图；
图 2是本实用新型折叠车架的第一铰轴与后轮轴线 L在水平面投影示意图； 图 3是本实用新型折叠车架的俯视图；
图 4是本实用新型折叠车架局部剖视图；
图 5是本实用新型折叠车架展开图；
图 6是本实用新型折叠车架的局部放大图。 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， 如图 1-4所示， 包括前臂 1、 中臂 2, 所述前臂 1、 中臂 2通过第一铰 轴 5在下端铰接， 前臂 1、 中臂 2的上端在连接处设有凹槽 3 , 所述凹槽 3包括位于前臂 的第一凹槽 31和位于中臂 2的第二凹槽 32 , 第一凹槽 31设有顶轴 4, 第二凹槽 32设有 第二铰轴 6, 手柄 7—侧设有侧板 71 , 手柄 7—端设有两个凸耳 72, 手柄 7横向设置铰轴 孔， 并穿过两个凸耳 72, 两凸耳 72间设有扭簧 9 , 第二铰轴 6穿过凸耳 72、 扭簧 9将手 柄 7连接于中臂 2上，所述扭簧 9两端的射线脚分别落在凹槽 3的底部和手柄 7的侧板 71 上， 手柄 7可容置于凹槽 3中， 所述手柄 7上设有顶杆 8 , 顶杆 8与顶轴 4垂直， 当手柄 7尾端向第一凹槽 31的底部方向转动时， 顶杆 8顶在顶轴 4上， 折叠车架的前臂 1和中臂 2通过顶杆 8与顶轴 4的配合而固定。 扭簧 9的作用是在折叠车架松开时， 扭簧 9的射线 脚使手柄 7弹起， 防止车架的前臂 1和中臂 2在对合时， 手柄 7在重力的作用下， 落于前 臂 1和中臂 2之间。 在使用过程中， 手柄 7置于凹槽 3中， 不易触碰到， 减少车架在使用 时意外松开的可能性， 且折叠车架的前臂 1和中臂 2主要受力方向向上， 前臂 1和中臂 2 上端结合处受到压力， 故折叠车架使用安全、 可靠。
上述实施方案中凹槽 3置于前臂 1和中臂 2的上端、 第一铰轴 5位于前臂 1和中臂 2 的下端为本实用新型的优选方案， 使用者很方便目视车架锁接处， 方便折叠， 当然， 凹槽 3位于前臂 1和中臂 2的左侧、 第一铰轴 5位于前臂 1和中臂 2的右侧， 相应地， 铰轴竖 向设置， 同样可以实现。 在上段的实施方案中， 为使折叠后， 前臂 1和中臂 2错开一定角 度， 所述第一铰轴 5与中臂 2的后轮轴线 L在水平面内投影的夹角 α为 5°到 12° , 优选 7° , 如图 2所示， 当第一铰轴 5与第二铰轴 6平行设置时， 手柄 7沿着车架折叠方向转动， 折 叠车架更为合理， 锁紧时更牢靠， 如图 6所示。 手柄 7侧面与凹槽 3内壁贴合， 结构更紧 密， 手柄 7尾端与凹槽 3的壁间设有间隙， 当需要折叠车架时， 容易操纵手柄 7尾端， 松 开前臂 1和中臂 2。
上述实施方案中， 顶轴 4设于所述第一凹槽 31 , 手柄 7设于第二凹槽 32中。 在实际 使用过程中， 顶轴设于所述第二凹槽， 手柄设于第一凹槽， 当手柄上的顶杆与顶轴顶紧时， 同样可将折叠车架锁紧。

Claims

权利要求
1、 一种折叠车架， 包括在一边铰接的前臂（1)和中臂（2), 其特征在于， 所述前臂 (1)和中臂（2)在另一边的连接处设有凹槽 （3), 所述凹槽包括位于所述前臂的第一凹 槽（31)和位于所述中臂的第二凹槽（32), 所述凹槽 （3)设有手柄 （7)和顶轴 （4), 所述手柄 （7)和顶轴 （4) 中的一个设于所述第一凹槽 （31), 另一个设于所述第二凹槽 (32), 所述手柄 (7)可容置于所述凹槽 (3)中， 所述手柄 (7)设有顶杆（ 8 ), 所述顶杆 (7)可顶 紧所述顶轴 (4)。
2、 根据权利要求 1所述的折叠车架， 其特征在于， 所述第一凹槽 (31)设有顶轴（4), 所述第二凹槽 (32)通过第二铰轴（ 6 )设有手柄 （ 7 )。
3、 根据权利要求 2所述的折叠车架， 其特征在于， 折叠车架锁合时， 所述顶轴（4) 与顶杆（8)垂直设置。
4、 根据权利要求 2所述的折叠车架， 其特征在于， 所述前臂（1)和中臂（2)通过第 一铰轴（5)铰接， 所述第一铰轴 (5)与中臂（2) 的后轮轴线 (L)在水平面内投影的夹角 α为 5。到 12。。
5、 根据权利要求 4所述的折叠车架， 其特征在于， 所述第一铰轴 （5)与所述第二铰 轴 (6)平行。
6、 根据权利要求 2所述的折叠车架， 其特征在于， 所述凹槽 （ 3 )位于前臂（ 1 )和 中臂（2) 的上端， 前臂（1)和中臂（2) 的下端设置第一铰轴（5)。
7、 根据权利要求 2所述的折叠车架， 其特征在于， 所述凹槽 （ 3 )位于前臂（ 1 )和 中臂（2)的左侧， 第一铰轴（5)位于前臂（ 1 )和中臂（2)的右侧， 所述的第一铰轴（5) 竖向设置。
8、 根据权利要求 2所述的折叠车架， 其特征在于， 所述凹槽 （ 3 )位于前臂（ 1 )和 中臂（2)的右侧， 第一铰轴（5)位于前臂（ 1 )和中臂（2)的左侧， 所述的第一铰轴（5) 竖向设置。
9、根据权利要求 2所述的折叠车架，其特征在于，所述第二铰轴（ 6 )上设有扭簧（ 9 ), 所述扭簧（9)置于手柄 （7) 的两凸耳（72)之间。
10、 根据权利要求 1-9任一项所述的折叠车架， 其特征在于， 所述手柄（7)侧面与凹 槽（3) 内壁贴合。
PCT/CN2012/073700 2011-08-01 2012-04-10 一种折叠车架 WO2013016958A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 201120278544 CN202163556U (zh) 2011-08-01 2011-08-01 一种折叠车架
CN201120278544.6 2011-08-01

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Publication Number Publication Date
WO2013016958A1 true WO2013016958A1 (zh) 2013-02-07

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
WO2016015073A1 (de) * 2014-07-29 2016-02-04 Thomas Schwaiger Zusammenfaltbarer fahrradrahmen

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202163556U (zh) * 2011-08-01 2012-03-14 大行科技(深圳)有限公司 一种折叠车架

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Publication number Priority date Publication date Assignee Title
GB1603329A (en) * 1977-08-11 1981-11-25 Yonkers E Collapsible wheeled vehicle
WO2005005240A1 (es) * 2003-07-08 2005-01-20 Interlander Patermann, S.L. Bicicleta plegable
CN200992273Y (zh) * 2006-12-14 2007-12-19 韩德玮 折叠接头操作手柄的固定装置
CN201169346Y (zh) * 2008-02-03 2008-12-24 徐达来 折叠自行车车架
CN201457626U (zh) * 2009-06-05 2010-05-12 深圳市富厚机械有限公司 车架折叠器
CN202163556U (zh) * 2011-08-01 2012-03-14 大行科技(深圳)有限公司 一种折叠车架

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Publication number Priority date Publication date Assignee Title
GB1603329A (en) * 1977-08-11 1981-11-25 Yonkers E Collapsible wheeled vehicle
WO2005005240A1 (es) * 2003-07-08 2005-01-20 Interlander Patermann, S.L. Bicicleta plegable
CN200992273Y (zh) * 2006-12-14 2007-12-19 韩德玮 折叠接头操作手柄的固定装置
CN201169346Y (zh) * 2008-02-03 2008-12-24 徐达来 折叠自行车车架
CN201457626U (zh) * 2009-06-05 2010-05-12 深圳市富厚机械有限公司 车架折叠器
CN202163556U (zh) * 2011-08-01 2012-03-14 大行科技(深圳)有限公司 一种折叠车架

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016015073A1 (de) * 2014-07-29 2016-02-04 Thomas Schwaiger Zusammenfaltbarer fahrradrahmen
US10300978B2 (en) 2014-07-29 2019-05-28 Thomas SCHWAIGER Foldable bicycle frame

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