WO2016029786A1 - 一种自行车前叉 - Google Patents

一种自行车前叉 Download PDF

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Publication number
WO2016029786A1
WO2016029786A1 PCT/CN2015/086366 CN2015086366W WO2016029786A1 WO 2016029786 A1 WO2016029786 A1 WO 2016029786A1 CN 2015086366 W CN2015086366 W CN 2015086366W WO 2016029786 A1 WO2016029786 A1 WO 2016029786A1
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WO
WIPO (PCT)
Prior art keywords
front fork
fork
crown
bicycle front
hole
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2015/086366
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English (en)
French (fr)
Inventor
韩德玮
李镜锋
廖荣光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dahon Technologies Ltd
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Dahon Technologies Ltd
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 Dahon Technologies Ltd filed Critical Dahon Technologies Ltd
Priority to JP2017511775A priority Critical patent/JP2017529275A/ja
Priority to EP15836088.3A priority patent/EP3187403A4/en
Publication of WO2016029786A1 publication Critical patent/WO2016029786A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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 SIDECARS, FORECARS, OR THE LIKE
    • B62K21/00—Steering devices
    • B62K21/02—Front wheel forks or equivalent, e.g. single tine
    • 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 SIDECARS, FORECARS, OR THE LIKE
    • B62K21/00—Steering devices
    • B62K21/04—Fork crowns

Definitions

  • the utility model relates to a bicycle component, in particular to a bicycle front fork.
  • the front fork of the bicycle is originally provided with a front fork riser and is connected with the vertical pipe.
  • the front fork riser is sleeved and locked into the vertical pipe, and now there is a bicycle front fork and
  • the sleeve connecting the riser or the handlebar riser is sleeved and locked to the middle bottom end of the front fork, so that the front fork is more stable when it is connected with the sleeve to which the vertical pipe or the handlebar riser is connected, and It has a concealed type.
  • the front fork comprises a fork leg 1 and a support base 7.
  • the sleeve 6 connected to the standpipe or the handlebar riser extends into the hole 7 provided by the support 7.
  • the support 7 is provided with a hole 8 and is connected by a handlebar. 6 extends into the lower end of the hole 8 and is locked by a locking device to complete the connection between the handlebar and the front fork.
  • the upper ends of the two fork legs 1 are curved inwardly and curved, and the fork ends are provided on the upper ends of the two fork legs, and the fork shoulders of the two fork legs 1 are provided with grooves;
  • the lower end of the support 7 is welded and integrated, and the support 7 is located between the two fork legs, as shown in FIG.
  • the precision of the front fork machining of such a structure is too high; and the support 7 is too thick and the structure is unreasonable.
  • the present invention aims to provide a bicycle front fork which is simple in structure, reasonable in structure, simple in processing procedure, and low in processing cost.
  • the utility model is realized as follows: a bicycle front fork, comprising two fork legs, further comprising a shoulder seat, wherein a middle of the shoulder seat is provided with a sleeve hole, and both ends of the shoulder seat are provided with a connecting portion, The connecting portion is fixedly connected to the two fork legs.
  • the sleeve hole is axially provided with a first gap and a second gap, and the first gap is provided with an adjusting device; the adjusting device includes a threaded hole penetrating the first gap and the thread Hole matching screw.
  • the threaded hole and the adjusting screw are two, the axis of the two threaded holes is perpendicular to the sleeve hole axis and the two threaded holes are arranged up and down; two of the adjusting screws are screwed into the respective places Threaded hole, two said The screws are placed in the opposite direction.
  • the bottom end of the sleeve hole is provided with a stepped hole.
  • the connecting portion is a fixing hole, and the two legs are fixedly connected to the fixing hole.
  • One side of the shoulder seat is provided with a square lug.
  • the shoulder seat has a flat structure.
  • the shoulder seat is a hollow structure.
  • the shoulder seat is extruded.
  • the utility model has the beneficial effects that: a flat hole is provided with a sleeve hole in the middle of the shoulder seat, and both ends of the shoulder seat are provided with a connecting portion, and the connecting portion is fixedly connected with the two fork legs.
  • the flat shoulder makes the entire front fork simple and lighter.
  • the sleeve is used for connecting and locking the sleeve connected to the handlebar to complete the fixed connection between the front fork and the handlebar; the two fork legs are fixedly connected to the joints at both ends of the sleeve, and the processing is simple and the cost is low; The two fork legs are separated from the sleeve hole, so that the impact force of the two fork legs from the wheel and the ground and the weight of the bicycle load weight are directly transmitted to the shoulder seat which is connected and supported, and the points of the force are not concentrated. The force in the direction is dispersed, the front fork is not easy to break, the strength is high, and the structure is reasonable.
  • the shoulder seat for carrying the load is the joint of the two fork legs, and only the fixing holes provided by the fork legs extending into the shoulder seat are directly welded or fixed by other fixing means, the structure is reasonable, the processing procedure is simple, and the cost is low.
  • the shoulder seat and the two fork legs are square in shape, and the square structure acts as a reinforcing rib, so that the shoulder seat and the two fork legs are stronger.
  • FIG. 1 is a schematic structural view of a conventional front fork
  • FIG. 2 is an exploded perspective view of the bicycle front fork of the present invention
  • FIG. 3 is a schematic structural view of a shoulder seat of a bicycle front fork according to the present invention.
  • FIG. 4 is an exploded perspective view showing another perspective view of the bicycle front fork of the present invention.
  • FIG. 5 is a schematic view showing the overall structure of a bicycle front fork according to the present invention.
  • FIG. 6 is a schematic view showing the overall structure of another perspective view of the bicycle front fork of the present invention.
  • the bicycle front fork includes two fork legs 1 and a shoulder seat 2.
  • the two-legged 1 and the shoulder 2 are square structures, and the square structure can strengthen the leg 1 and the shoulder 2 in bending resistance, and has the function of reinforcing ribs.
  • the shoulder seat 2 having a flat structure, that is, its flat upper and lower flat, hollow and hollow structure, makes the structure of the entire front fork not thick, simple in structure, and overall beautiful.
  • a square lug 24 is provided on one side of the shoulder seat 2, as long as it is advantageous for fixing the fender and the brake, and the fender is prevented from being directly connected to the shoulder seat 2, so as to prevent the structural strength of the shoulder seat 2 from being insufficient.
  • the middle portion of the shoulder seat 2 is provided with a sleeve hole 3, and both ends of the shoulder seat 2 are provided with a connecting portion, and the connecting portion is a fixing hole 23, and the fixing holes 23 at both ends of the sleeve hole 3 are symmetrical with each other with the sleeve hole 3 as a fulcrum.
  • the fixing hole 23 is matched with the two fork legs 1 , and one end of the two fork legs 1 is inserted through the fixing hole 23 and fixed by welding, and can also be fixed by other means, such as directly snapping in and riveting, etc.; And the fork piece is connected with the hub shaft of the wheel.
  • the two-legged legs 1 extend into the fixing holes 23 and are welded, and have good stability, and can stably maintain the connection angle of the two-legged legs 1 and the shoulder seat 2, and the size of the two-legged legs 1.
  • the shoulder seat 2 uses an extrusion molding mode with low cost and integral molding to make the structure reasonable and stable.
  • the bottom end of the sleeve hole 3 is provided with a stepped hole 26, the sleeve 6 for connecting the handlebar is passed through the head tube and is passed through the sleeve hole 3, and finally locked by the locking cover 4 to the stepped hole 26 and locked.
  • the cover 4 abuts the stepped hole 26 to complete the fixed connection of the front fork and the handlebar, the locking cover 4 sinks into the stepped hole 26 and abuts, the stepped hole 26 conceals and protects the locking cover 4;
  • the sleeve hole 3 has the first axial direction
  • the gap 21 and the second gap 22, the first gap 21 is provided with an adjusting device; the adjusting device can control the clamping to make the gap of the first gap 21 smaller, thereby changing the deformation of the sleeve hole 3, and the second gap 22 is also deformed at the same time. That is, the diameter of the sleeve hole 3 is made smaller to the clamping sleeve 6, which serves as a regulating function.
  • the second gap 22 is two in order to enable a larger deformation in the first gap 21, and the adjusting device includes a threaded hole 25 penetrating the first gap 21 and an adjusting screw matched with the threaded hole 25. 5. Both the threaded hole 25 and the adjusting screw 5 are two, and the axis of the two threaded holes 25 is perpendicular to the axis of the sleeve hole 3 and the two threaded holes 25 are arranged up and down. The arrangement is such that the adjusting screw 5 can be more evenly locked after being locked.
  • the deformation of the first gap 21 is more favorable; and the two adjusting screws 5 are screwed into the screw holes 25 ⁇ , and the two adjusting screws 5 are arranged in opposite directions, so that the deformation of the first gap 21 is balanced and the locking is stable. That is to complete the installation of the bicycle handlebar riser, the installation process is simple and convenient.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the present invention. The scope of protection of utility models.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)

Abstract

一种自行车前叉，包括两叉腿（1），还包括肩座（2），扁平状的肩座（2）的中部设有套孔（3），肩座（2）两端均设有连接部，连接部与两叉腿（1）固定连接。扁平状的肩座（2）使得整个前叉结构简单，更显得轻盈。在肩座（2）上，两叉腿（1）与套孔（3）相分离开来，使得两叉腿（1）受到车轮与地面的撞击力和自行车的载重量的重力会直接传至起连接承载作用的肩座（2）上，作用力的点不集中，各个方向的力得以分散，前叉不易断裂，强度高，结构合理。起承载作用的肩座（2）在与两叉腿（1）连接时，仅需要叉腿（1）伸入肩座（2）设有的固定孔（23），然后直接焊接或者其他固定方式固定即可。该自行车前叉结构合理，加工工序简单，成本低。

Description

一种自行车前叉
技术领域
[0001] 本实用新型涉及自行车零部件， 特别涉及一种自行车前叉。
背景技术
[0002] 随着自行车行业的发展， 自行车的前叉由原先设有前叉立管并与竖管连接吋， 是前叉立管套入竖管锁紧固定， 现在有一种自行车的前叉与连接有竖管或者车 把立管的套管套入并锁紧于前叉的中部底端， 使得前叉在与连接有竖管或者车 把立管的套管连接吋， 更为稳固， 并具有隐蔽型。 此前叉包括叉腿 1和支座 7构 成， 连接有竖管或者车把立管的套管 6伸入支座 7设有的孔 8支座 7设有孔 8并由连 接车把的套管 6伸入并在孔 8的下端有锁紧装置锁紧， 完成车把与前叉的连接。 但是在两叉腿 1的上端均为往内弯曲呈弧形， 并且在两叉腿的上端均设有叉肩， 两叉腿 1的叉肩均设有凹槽； 最后由两凹槽包裹前支座 7的下端并进行焊接， 形 成一体， 支座 7位于两叉腿中间， 如图 1所示。 此类结构的前叉加工精度要求过 高； 而且支座 7过于厚重， 结构不合理。
技术问题
[0003] 本实用新型旨在提供一种结构简单、 合理， 加工工序简单， 加工成本低的自行 车前叉。
问题的解决方案
技术解决方案
[0004] 本实用新型是这样实现的： 一种自行车前叉， 包括两叉腿， 还包括肩座， 所述 肩座的中部设有套孔， 所述肩座两端均设有连接部， 所述连接部与所述两叉腿 固定连接。
[0005] 所述套孔轴向设有第一间隙和第二间隙， 所述第一间隙设有调节装置； 所述调 节装置包括穿设于所述第一间隙的螺纹孔和与所述螺纹孔相匹配的调节螺钉。
[0006] 所述螺纹孔和所述调节螺钉均为两个， 两所述螺纹孔的轴线与所述套孔轴线垂 直且两所述螺纹孔上下排布； 两所述调节螺钉旋入各所述螺纹孔吋， 两所述调 节螺钉摆放的方向相反。
[0007] 所述套孔的底端设有阶梯孔。
[0008] 所述连接部为固定孔， 所述两叉腿穿设于所述固定孔固定连接。
[0009] 所述肩座的一侧设有方形凸耳。
[0010] 所述肩座为扁平状结构。
[0011] 所述肩座为镂空结构。
[0012] 所述肩座为挤压成型。
发明的有益效果
有益效果
[0013] 本实用新型的有益效果是： 扁平状的肩座中部设有套孔， 肩座两端均设有连接 部， 连接部与两叉腿固定连接。 扁平状的肩座使得整个前叉结构简单， 更显得 轻盈。 套孔用于连接于车把的套管伸入并锁紧， 完成前叉与车把的固定连接； 两叉腿固定连接于套座两端的连接部， 加工简单， 成本低； 在肩座上两叉腿与 套孔相分离幵来， 使得两叉腿受到车轮与地面的撞击力和自行车的载重量的重 力会直接传至起连接承载作用的肩座上， 作用力的点不集中， 各个方向的力得 以分散， 前叉不易断裂， 强度高， 结构合理。 而且起承载作用的肩座在于两叉 腿连接吋， 仅仅需要叉腿伸入肩座设有的固定孔直接焊接或者其他固定方式固 定即可， 结构合理， 加工工序简单， 成本低。 肩座和两叉腿均为方形结构， 因 方形结构的起到加强筋的作用， 使得肩座和两叉腿强度更大。
对附图的简要说明
附图说明
[0014] 图 1为现有前叉的结构示意图；
[0015] 图 2为本实用新型的自行车前叉的分解示意图；
[0016] 图 3为本实用新型的自行车前叉的肩座的结构示意图；
[0017] 图 4为本实用新型的自行车前叉的另一视角的分解图示意图；
[0018] 图 5为本实用新型的自行车前叉的整体结构示意图；
[0019] 图 6为本实用新型的自行车前叉的另一种视角的整体结构示意图。 本发明的实施方式
[0020] 下面结合附图对本实用新型一种自行车前叉做进一步详细说明。
[0021] 请参考图 2至图 6所示， 自行车前叉包括两叉腿 1和肩座 2。 两叉腿 1和肩座 2均为 方形结构， 方形结构能加强叉腿 1和肩座 2在抗弯曲的能力， 具有加强筋的作用 。 具有扁平状结构的肩座 2， 即其上下较扁， 扁平和镂空状结构， 使得整个前叉 的结构不显得厚重， 结构简单， 整体美观。 肩座 2的一侧设有方形凸耳 24， 只要 有利于固定挡泥板和刹车器， 避免挡泥板直接在肩座 2上连接， 以免肩座 2的结 构强度不够。
[0022] 肩座 2的中部设有套孔 3， 肩座 2两端均设有连接部， 连接部为固定孔 23， 套孔 3 的两端的固定孔 23以套孔 3为支点相互对称。 固定孔 23与两叉腿 1相匹配， 两叉 腿 1一端穿设于固定孔 23并焊接固定， 也可以使用其他方式固定， 如直接卡入并 铆接等； 两叉腿 1另一端焊接叉片并由叉片与车轮的花鼓轴连接。 两叉腿 1伸入 固定孔 23并焊接， 稳定性好， 能稳定地保持两叉腿 1与肩座 2的连接角度， 以及 两叉腿 1间的尺寸。 肩座 2使用挤压成型的生产模式， 成本低， 整体成型使得结 构合理、 稳定。
[0023] 套孔 3的底端设有阶梯孔 26， 用于连接车把的套管 6穿过头管并穿设套孔 3， 最 后由锁紧盖 4锁紧于阶梯孔 26处且锁紧盖 4与阶梯孔 26相抵， 完成前叉与车把的 固定连接， 锁紧盖 4沉入阶梯孔 26并相抵， 阶梯孔 26隐藏和保护锁紧盖 4; 套孔 3 轴向设有第一间隙 21和第二间隙 22， 第一间隙 21设有调节装置； 调节装置能控 制夹紧使第一间隙 21的间隙变小， 从而改变套孔 3的形变， 第二间隙 22也同吋发 生形变， 即使得套孔 3的口径变小夹紧套管 6， 起到调节作用。 第二间隙 22为两 个是为了能使在第一间隙 21能发生更大的形变， 调节装置包括穿设于第一间隙 2 1的螺纹孔 25和与所述螺纹孔 25相匹配的调节螺钉 5。 螺纹孔 25和调节螺钉 5均为 两个， 两螺纹孔 25的轴线与套孔 3轴线垂直且两螺纹孔 25上下排布， 如此排布是 为了在调节螺钉 5锁紧吋能更为均衡地使得更有利于第一间隙 21形变； 而且两调 节螺钉 5旋入各螺纹孔 25吋， 两调节螺钉 5摆放的方向相反， 使得第一间隙 21形 变受力均衡， 锁紧稳固。 即完成安装自行车车把立管， 安装工序简单、 方便。 以上所述仅为本实用新型的较佳实施例而已， 并不用以限制本实用新型， 凡在 本实用新型的精神和原则之内所作的任何修改、 等同替换和改进等， 均应包含 在本实用新型的保护范围之内。

Claims

权利要求书
[权利要求 1] 一种自行车前叉， 包括两叉腿 （1) ， 其特征在于， 还包括肩座 （2) ， 所述肩座 （2) 的中部设有套孔 （3) ， 所述肩座 （2) 两端均设有 连接部， 所述连接部与所述两叉腿 （1) 固定连接。
[权利要求 2] 根据权利要求 1所述的自行车前叉， 其特征在于， 所述套孔 （3) 轴向 设有第一间隙 （21) 和第二间隙 （22) ， 所述第一间隙 （21) 设有调 节装置； 所述调节装置包括穿设于所述第一间隙 （21) 的螺纹孔 （25 ) 和与所述螺纹孔 （25) 相匹配的调节螺钉 （5) 。
[权利要求 3] 根据权利要求 2所述的自行车前叉， 其特征在于， 所述螺纹孔 （25) 和所述调节螺钉 （5) 均为两个， 两所述螺纹孔 （25) 的轴线与所述 套孔 （3) 轴线垂直且两所述螺纹孔 （25) 上下排布； 两所述调节螺 钉 （5) 旋入各所述螺纹孔 （25) 吋， 两所述调节螺钉 （5) 摆放的方 向相反。
[权利要求 4] 根据权利要求 3所述的自行车前叉， 其特征在于， 所述套孔 （3) 的底 端设有阶梯孔 (26) 。
[权利要求 5] 根据权利要求 3所述的自行车前叉， 其特征在于， 所述连接部为固定 孔 （23) ， 所述两叉腿 （1) 穿设于所述固定孔 （23) 固定连接。
[权利要求 6] 根据权利要求 1-5任一项所述的自行车前叉， 其特征在于， 所述肩座
(2) 的一侧设有方形凸耳 （24) 。
[权利要求 7] 根据权利要求 6所述的自行车前叉， 其特征在于， 所述肩座 （2) 为扁 平状结构。
[权利要求 8] 根据权利要求 6所述的自行车前叉， 其特征在于， 所述肩座 （2) 为镂 空结构。
[权利要求 9] 根据权利要求 6所述的自行车前叉， 其特征在于， 所述肩座 （2) 为挤 压成型。
PCT/CN2015/086366 2014-08-28 2015-08-07 一种自行车前叉 Ceased WO2016029786A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2017511775A JP2017529275A (ja) 2014-08-28 2015-08-07 自転車のフロントフォーク
EP15836088.3A EP3187403A4 (en) 2014-08-28 2015-08-07 Bicycle front fork

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Application Number Priority Date Filing Date Title
CN201420502577.8U CN204021155U (zh) 2014-08-28 2014-08-28 一种自行车前叉
CN2014205025778 2014-08-28

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WO2016029786A1 true WO2016029786A1 (zh) 2016-03-03

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EP (1) EP3187403A4 (zh)
JP (1) JP2017529275A (zh)
CN (1) CN204021155U (zh)
WO (1) WO2016029786A1 (zh)

Cited By (2)

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