NL2009266C2 - Shock absorbing structure of bicycle. - Google Patents

Shock absorbing structure of bicycle. Download PDF

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Publication number
NL2009266C2
NL2009266C2 NL2009266A NL2009266A NL2009266C2 NL 2009266 C2 NL2009266 C2 NL 2009266C2 NL 2009266 A NL2009266 A NL 2009266A NL 2009266 A NL2009266 A NL 2009266A NL 2009266 C2 NL2009266 C2 NL 2009266C2
Authority
NL
Netherlands
Prior art keywords
shock
vertical rod
construction according
absorbing bicycle
connecting piece
Prior art date
Application number
NL2009266A
Other languages
Dutch (nl)
Other versions
NL2009266A (en
Inventor
Liao Hsueh-Sen
Original Assignee
Hsin Lung Accessories Co 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 Hsin Lung Accessories Co Ltd filed Critical Hsin Lung Accessories Co Ltd
Publication of NL2009266A publication Critical patent/NL2009266A/en
Application granted granted Critical
Publication of NL2009266C2 publication Critical patent/NL2009266C2/en

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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
    • B62K21/00—Steering devices
    • B62K21/18—Connections between forks and handlebars or handlebar stems
    • B62K21/20—Connections between forks and handlebars or handlebar stems resilient

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Vibration Dampers (AREA)

Description

NL 18342-ZO/id
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 18 3 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 object.
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. lisa 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 46, 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 4 0 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.

Claims (13)

1. Een schokabsorberende fietsconstructie, omvattende: een voorvork, met een aansluitstuk, twee vorkdelen aangebracht op het aansluitstuk en een doorlopende opening gevormd aan een bovenzijde van het aansluitstuk; een verticale stang, aangebracht in de doorlopende opening; een elastisch element, rustend op de bovenzijde van het aansluitstuk en aangebracht tegenover een buitenste deel van de verticale stang; en een bevestigingsplaat, bevestigd aan de verticale stang en aangebracht op een positie tegenover de bovenzijde van het elastische element voor het positioneren van het elastisch element aan de bovenkant van het aansluitstuk, zodanig dat wanneer de voorvork wordt onderworpen aan een axiale stootbelasting, dit resulteert in een axiale beweging van de verticale stang die overeenkomt met een elastisch samendrukkende vervorming voor het opvangen van de axiale slagkracht.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 mounted 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. De schokabsorberende f1etsconstructie volgens conclusie 1, waarbij de verticale stang een aanslagdeel omvat dat is gevormd aan een uiteinde van de verticale stang en dat uitsteekt buiten de doorlopende opening, waarbij het aanslagdeel iets groter is dan de doorlopende opening.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. De schokabsorberende fietsconstructie volgens conclusie 2, waarbij het aanslagdeel een geheel vormt met de verticale stang.The shock-absorbing bicycle construction according to claim 2, wherein the stop part forms an integral part of the vertical rod. 4. De schokabsorberende fietsconstructie volgens conclusie 2, waarbij het aanslagdeel is bevestigd aan een uiteinde van de verticale stang door middel van een bevestigingseenheid.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. De schokabsorberende fietsconstructie volgens conclusie 4, waarbij de bevestigingseenheid een schroef en een bevestigingsblok omvat.The shock-absorbing bicycle construction according to claim 4, wherein the mounting unit comprises a screw and a mounting block. 6. De schokabsorberende fietsconstructie volgens conclusie 1, waarbij de doorgaande opening axiaal tenminste een sleufgeleiding omvat die zich in axiale -richting uitstrekt vanaf een binnenwand van de doorlopende opening en waarbij de verticale stang een uitsteeksel omvat dat zich uitstrekt in de sleufgeleiding.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. De schokabsorberende fietsconstructie volgens conclusie 1, waarbij de verticale stang tenminste een sleufgeleiding omvat die zich in axiale richting uitstrekt vanaf een wand van de verticale stang, en waarbij het aansluitstuk een uitsteeksel omvat dat zich uitstrekt in de sleufgeleiding.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. De schokabsorberende fietsconstructie volgens een der conclusies 1 tot 7, waarbij de doorgaande opening tenminste een leivlak heeft en waarbij de verticale stang een overeenkomstig leivlak omvat dat tegenover de doorlopende opening is geplaatst.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 which is placed opposite the continuous opening. 9. De schokabsorberende fietsconstructie volgens conclusie 8, verder omvattende tenminste een opvulblok aangebracht tussen de doorlopende opening en de verticale stang.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. De schokabsorberende fietsconstructie volgens een der conclusies 1 tot 7, waarbij het aansluitstuk een opnamegleuf omvat in het boveneinde van het aansluitstuk voor het positioneren van het elastische element.The shock-absorbing bicycle construction 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. De schokabsorberende fietsconstructie volgens een der conclusies 1 tot 7, waarbij de verticale stang is gekoppeld met een stuur van de fiets door middel van een stangconstructie.The shock-absorbing bicycle construction according to any one of claims 1 to 7, wherein the vertical rod is coupled to a handlebar of the bicycle by means of a rod construction. 12. De schokabsorberende fietsconstructie volgens conclusie 11, waarbij de stangconstructie is bevestigd aan de verticale stang door middel van een sluitring.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. De schokabsorberende fietsconstructie volgens conclusie 11, waarbij de stangconstructie wordt bevestigd op de verticale stang door middel van een motief module.The shock-absorbing bicycle construction according to claim 11, wherein the rod construction is mounted on the vertical rod by means of a motif module.
NL2009266A 2011-08-04 2012-08-02 Shock absorbing structure of bicycle. NL2009266C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW100214409 2011-08-04
TW100214409U TWM419725U (en) 2011-08-04 2011-08-04 Damping structure of bike

Publications (2)

Publication Number Publication Date
NL2009266A NL2009266A (en) 2013-02-05
NL2009266C2 true NL2009266C2 (en) 2014-08-21

Family

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Application Number Title Priority Date Filing Date
NL2009266A NL2009266C2 (en) 2011-08-04 2012-08-02 Shock absorbing structure of bicycle.

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TW (1) TWM419725U (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB695658A (en) * 1951-04-10 1953-08-12 Margaret Gulland Dixon Improvements in resilient bicycle forks
GB8921962D0 (en) * 1989-09-28 1989-11-15 Browning Michael R S Variable suspension system
FR2683010B1 (en) * 1991-10-25 1995-04-21 Daniel Dormoy METHOD AND DEVICE FOR MOUNTING A SHOCK ABSORBER ELEMENT BETWEEN TWO CONCENTRIC MECHANICAL AXES, ONE OF WHICH IS SUBJECT TO VIBRATION.
DE4344384A1 (en) * 1993-12-24 1995-06-29 Walter Sobolewski Shock absorber for front wheel fork shaft tube of bicycle or motorcycle
EP0827901A3 (en) * 1996-09-04 1998-11-11 Hui-Hsiung Chen Shock absorbing device for a bicycle
NL1011355C2 (en) * 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 (en) * 2006-12-29 2008-07-03 Kuang-Huan Fu Foldable bicycle having x-shaped frame

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Publication number Publication date
NL2009266A (en) 2013-02-05
TWM419725U (en) 2012-01-01

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Effective date: 20150901