• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:NL2009266A
    申请号:NL2009266
    申请日:2012-08-02
    公开日:2013-02-05
    发明作者:Liao Hsueh-Sen
    申请人:Hsin Lung Accessories Co Ltd；
    IPC主号:
    专利说明:

    TITLE: SHOCK ABSORBING STRUCTURE OF BICYCLE BACKGROUND OF THE INVENTION
    (a) Field of the Invention
    The present invention relates to a shock absorbing structure of a bicycle, in particular the shock absorbing structure with a shock resisting function applied in a bicycle fork, wherein a fork tube compresses an elastic element to produce an axial motion, so as to achieve a shock absorbing effect by the axial impact force.
    (b) Description of the Related Art
    In general, a shock absorber reduces external impact forces by the buffering and shock absorption of a spring. For example, a mono shock absorber used in a bicycle provides a function of reducing the shocks produced from the ground. A "mono shock absorber structure disclosed in R.O.C. Pat. No. M311647 is shown in FIG. 1 comprises a spring 12 seated on an upper end of a fork tube 11, a lower fixing ring member 13 abutted against an upper end of the spring 12, a vertical rod 14 disposed on the fork tube 11 and soldered to a lower end of the spring 12, a nut 15 pressed against an outer side of the lower fixing ring member 13 , an external housing 16 having a containing space formed therein and between the vertical rod 14 and the lower fixing ring member 13, an external socket 17 seated on an outer side of the vertical rod 14 and having a lower end latched to an upper sidewall of the containing space of the external housing 16, a guide element 18 comprised of upper and lower ring-shaped clamp members 181, 182 and disposed in the containing space, and a cylindrical needle roller 183 installed at the guide plane of the vertical rod and disposed opposite to the upper and lower ring-shaped clamp members 181, 182.
    Wherein, the spring 12 is provided for axially moving the vertical rod 14 on the guide element 18 to provide a shock resisting function to the using obj ect.
    With reference to FIG. 2 for another conventional mono shock absorber structure, the mono shock absorber structure comprises : an outer pipe 21, an axial pipe 22, a guide pillar 23, and a spring 24 , wherein the outer pipe 21 has a slide limit ring 211 installed therein; the axial pipe 22 is passed into the outer pipe 21 for coupling the shock absorber to a fork 27 of the bicycle, and an end of the axial pipe 22 is extended into the outer pipe 21 and has a slide limit member 221 fixed thereto, and an end of the guide pillar 23 is fixed to a side of the outer pipe 21, and the other end of the guide pillar 23 is extended into the axial pipe 22; the spring 24 is installed in the axial pipe 22 and abutted between the axial pipe 22 and the guide pillar 23, and a bushing 25 is installed between the guide pillar 23 and the spring 24, so that the spring 24 can elastically restoring the positions of the outer pipe 21 and the axial pipe 22 to achieve the shock resisting function.
    Each of the aforementioned conventional shock absorber structures uses a spring for elastically restoring the positions of the inner and outer sockets (wherein the first conventional shock absorber structure has a vertical rod and a guide element, and the second conventional shock absorber structure has an axial pipe and an outer pipe) , so that the inner and outer sockets can have axial motions to achieve the shock resisting function, However, each of the aforementioned structures not only incurs more components, but also requires a more complicated assembling process, and the aforementioned two conventional shock absorber structures cannot be fixed to the stem structure by a washer.
    SUMMARY OF THE INVENTION
    In view of the foregoing drawbacks of the prior art, it is a primary obj ective of the present invention to overcome the drawbacks by providing a shock resisting function applied to a bicycle fork and using a fork tube to compress an elastic element to produce an axial motion, so as to absorb the axial impact force and achieve the shock absorbing effect.
    To achieve the aforementioned objective, the present invention provides a shock absorbing structure comprising a fork tube, a vertical rod, an elastic element and a fixing plate, wherein the fork tube includes a socket, two fork portions disposed on the socket, and a through hole formed at an upper end of the socket, and the vertical rod is passed into the through hole, and the fixing plate is installed at the vertical rod for positioning an elastic element at the top of the socket and disposed opposite to an external side of the vertical rod, such that when the fork tube receives an axial impact force, an axialmotion of the vertical rod is produced according to an elastic contractive deformation to for absorbing the axial impact force and achieving the shock absorbing effect.
    Compared with the conventional shock absorber structure that absorbs shocks by the axial motions produced by internal and external sockets, the invention can achieve the shock absorbing effect without the complicated components and difficult assembling process .
    BRIEF DESCRIPTION OF THE DRAWINGS
    FIG. 1 is a schematic view of a first conventional mono shock absorber structure; FIG. 2 is a schematic view of a second conventional mono shock absorber structure; FIG. 3 is a perspective view of a shock absorbing structure in accordance with a first preferred embodiment of the present invention; FIG. 4 is an exploded view of a shock absorbing structure in accordance with the first preferred embodiment of the present invention; FIG. 5 is a cross-sectional view of a shock absorbing structure in accordance with the first preferred embodiment of the present invention; FIG. 6 is a schematic view of an axial motion of a fork, tube in accordance with a structure of the present invention; FIGS. 7 (A) and 7 (B) are perspective views of a shock absorbing structure coupled to a bicycle handlebar by different stem structures in accordance with the present invention respectively; FIG. 8 is a cross-sectional view of a shock absorbing structure in accordance with a second preferred embodiment of the present invention; FIG. 9 is a cross-sectional view of a shock absorbing structure in accordance with a third preferred embodiment of the present invention; FIG. 10 is a schematic view of an axial motion of a fork tube in accordance with another structure of the present invention; FIG. 11 is a cross-sectional view of a shock absorbing structure in accordance with a fourth preferred embodiment of the present invention; and FIG. 12 is a perspective view of a shock absorbing structure in accordance with a fifth preferred embodiment of the present invention .
    DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
    The technical characteristics and features of the present invention will become apparent with the detailed description of preferred embodiments and the illustration of related drawings as follows .
    With reference to FIGS. 3, 4 and 5, the present invention provides a shock absorbing structure applied in a bicycle fork, and the shock absorbing structure comprises a fork tube 30, a vertical rod 40, an elastic element 50 and a fixing plate 60.
    The fork tube 30 includes a socket 31, two fork portions 32 disposed on the socket 31, a through hole 311 formed at an upper end of the socket 31, and a plug-in slot 34 formed at an upper end of the socket.
    The vertical rod 40 is passed into the through hole 311 and provided for connecting an object (such as a bicycle stem) , wherein a stop portion 41 is formed at an end of the vertical rod 40 and exposed from the through hole 311, and the stop portion 41 is slightly greater than the through hole 311 as illustrated in the preferred embodiment of the figure, and the stop portion 41 is fixed to an end of the vertical rod 40 by a fixing module (comprising a screw 42 and a fixing block 43), and the fixing block 43 is contained in the vertical rod 40 and secured by the screw 42.
    The elastic element 50 (which is a spring) is seated on an upper end of the socket 31 and disposed opposite to an outer side of the vertical rod 4 0; and the fixing plate 60 is installed at the vertical rod 40 and disposed opposite to the top of the elastic element 50 for positioning the elastic element 50 to the top of the plug-in slot 34 of the socket.
    When the shock absorbing structure of present invention is applied to provide a shock resisting function of the bicycle fork, the vertical rod 40 can be coupled to a handlebar 82 of the bicycle by different stem structures 81 as shown in FIG. 7(A), and the stem structure 81 is fixed onto the vertical rod 40 by a washer (not shown in the figure), and the other kind of stem structure 81 as shown in FIG. 7(B) is fixed onto the vertical rod 40 by a motif module (not shown in the figure) . In FIG. 6, the overall shock absorbing structure is provided for elastically restoring the fork tube 30 to its original position by the elastic element 50, so that when the fork tube 30 receives axial impact forces, the elastic contraction and deformation of the elastic element 50 moves the fork tube 30 axially up and down with respect to the vertical rod 40 to absorb the axial impact force and achieve the shock absorbing effect.
    With reference to FIG. 8 for the second preferred embodiment of the present invention, the stop portion 41 is integrally formed with the vertical rod 4 0 or at least one guide slot 312 is extended axially from an inner wall of the through hole 311. With reference to FIGS . 9 and 10 for the third preferred embodiment of the present invention, the vertical rod 40 includes a column 44 extended into the guide slot 312. and the stroke of the column 44 in the guide slot 312 limits stroke of the axial motion of the fork tube 30. With reference to FIG. 11 for the fourth preferred embodiment of the present invention, at least one guide slot 46 is extended axially from a wall of the vertical rod 40, and the socket 31 includes a column 35 extended into the guide slot 4 6, such that the stroke of the column 35 in the guide slot 46 also limits the stroke the axial motion of the fork tube 30.
    In FIGS. 4 and 5, the through hole 311 has at least one guide plane 313, and the vertical rod 40 has a guide plane 45 formed at a position opposite to the through hole 311 for limiting the rotation of the vertical rod 40 with respect to the fork tube 30, and at least one pad 70 is installed between the through hole 311 and the vertical rod 40. In addition, the fork tube 30 of the present invention is a structure in a form as shown in FIG. 12.
    In summation, the present invention provides a feasible shock absorbing structure for a bicycle to improve over the prior art and complies with the patent application requirements, and thus is duly filed for patent application.
    While the invention has been described by means of specific embodiments, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the invention set forth in the claims.
    权利要求:
    Claims (13)
    [1]
    A shock-absorbing bicycle construction, comprising: a front fork, with a connecting piece, two fork parts arranged on the connecting piece and a continuous opening formed on an upper side of the connecting piece; a vertical rod disposed in the continuous opening; an elastic element resting on the top of the connecting piece and arranged opposite an outer part of the vertical rod; and a mounting plate attached to the vertical rod and disposed at a position opposite the top of the elastic member for positioning the elastic member at the top of the connector such that when the front fork is subjected to an axial impact load, this results in an axial movement of the vertical rod corresponding to an elastically compressive deformation for absorbing the axial impact force.
    [2]
    The shock-absorbing bicycle construction according to claim 1, wherein the vertical bar comprises a stop member formed at one end of the vertical bar and protruding outside the continuous opening, the stop member being slightly larger than the continuous opening.
    [3]
    The shock-absorbing bicycle construction according to claim 2, wherein the stop part forms an integral part of the vertical rod.
    [4]
    The shock-absorbing bicycle construction according to claim 2, wherein the stop member is attached to one end of the vertical bar by means of a mounting unit.
    [5]
    The shock-absorbing bicycle construction according to claim 4, wherein the mounting unit comprises a screw and a mounting block.
    [6]
    The shock-absorbing bicycle structure of claim 1, wherein the through-hole comprises axially at least one slot guide extending axially from an inner wall of the through-opening and wherein the vertical bar comprises a protrusion extending into the slot guide.
    [7]
    The shock-absorbing bicycle construction according to claim 1, wherein the vertical rod comprises at least one slot guide extending axially from a wall of the vertical rod, and wherein the connecting piece comprises a protrusion extending in the slot guide.
    [8]
    The shock-absorbing bicycle construction according to any one of claims 1 to 7, wherein the continuous opening has at least one guide surface and wherein the vertical rod comprises a corresponding guide surface that is placed opposite the continuous opening.
    [9]
    The shock-absorbing bicycle construction according to claim 8, further comprising at least one filler block arranged between the continuous opening and the vertical rod.
    [10]
    The shock-absorbing bicycle structure according to any of claims 1 to 7, wherein the connecting piece comprises a receiving slot in the upper end of the connecting piece for positioning the elastic element.
    [11]
    The shock-absorbing bicycle construction according to any of claims 1 to 7, wherein the vertical rod is coupled to a handlebar of the bicycle by means of a rod construction.
    [12]
    The shock-absorbing bicycle construction according to claim 11, wherein the rod construction is attached to the vertical rod by means of a washer.
    [13]
    The shock-absorbing bicycle construction according to claim 11, wherein the bar construction is mounted on the vertical bar by means of a motif module.
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    同族专利:
    公开号 | 公开日
    TWM419725U|2012-01-01|
    NL2009266C2|2014-08-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB695658A|1951-04-10|1953-08-12|Margaret Gulland Dixon|Improvements in resilient bicycle forks|
    EP0420610A1|1989-09-28|1991-04-03|Cannondale Corporation|Bicycle suspension system|
    FR2683010A1|1991-10-25|1993-04-30|Dormoy Daniel|METHOD AND DEVICE FOR MOUNTING A DAMPING ELEMENT BETWEEN TWO CONCENTRIC MECHANICAL AXES, ONE OF WHICH IS SUBJECT TO VIBRATION.|
    DE4344384A1|1993-12-24|1995-06-29|Walter Sobolewski|Shock absorber for front wheel fork shaft tube of bicycle or motorcycle|
    EP0827901A2|1996-09-04|1998-03-11|Hui-Hsiung Chen|Shock absorbing device for a bicycle|
    NL1011355C2|1999-02-19|2000-08-22|Gijs Ontwerpers|Bicycle front fork suspension. has bent part of inner tube with leaf spring extensions that deform with any axial movement of inner and outer tubes|
    US20080157502A1|2006-12-29|2008-07-03|Kuang-Huan Fu|Foldable bicycle having x-shaped frame|
    法律状态:
    2016-05-04| MM| Lapsed because of non-payment of the annual fee|Effective date: 20150901 |
    优先权:
    申请号 | 申请日 | 专利标题
    TW100214409U|TWM419725U|2011-08-04|2011-08-04|Damping structure of bike|
    TW100214409|2011-08-04|
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