EP3172120A1 - Fourche de bicyclette, cadre de bicyclette et bicyclette - Google Patents

Fourche de bicyclette, cadre de bicyclette et bicyclette

Info

Publication number
EP3172120A1
EP3172120A1 EP14730095.8A EP14730095A EP3172120A1 EP 3172120 A1 EP3172120 A1 EP 3172120A1 EP 14730095 A EP14730095 A EP 14730095A EP 3172120 A1 EP3172120 A1 EP 3172120A1
Authority
EP
European Patent Office
Prior art keywords
bicycle
tube
steerer
fork
cable
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.)
Withdrawn
Application number
EP14730095.8A
Other languages
German (de)
English (en)
Inventor
Stefan Christ
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.)
Bmc Switzerland AG
Original Assignee
Bmc Switzerland AG
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 Bmc Switzerland AG filed Critical Bmc Switzerland AG
Publication of EP3172120A1 publication Critical patent/EP3172120A1/fr
Withdrawn legal-status Critical Current

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
    • B62K19/00—Cycle frames
    • B62K19/02—Cycle frames characterised by material or cross-section of frame members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J11/00—Supporting arrangements specially adapted for fastening specific devices to cycles, e.g. supports for attaching maps
    • B62J11/10—Supporting arrangements specially adapted for fastening specific devices to cycles, e.g. supports for attaching maps for mechanical cables, hoses, pipes or electric wires, e.g. cable guides
    • B62J11/13—Supporting arrangements specially adapted for fastening specific devices to cycles, e.g. supports for attaching maps for mechanical cables, hoses, pipes or electric wires, e.g. cable guides specially adapted for mechanical cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J11/00—Supporting arrangements specially adapted for fastening specific devices to cycles, e.g. supports for attaching maps
    • B62J11/10—Supporting arrangements specially adapted for fastening specific devices to cycles, e.g. supports for attaching maps for mechanical cables, hoses, pipes or electric wires, e.g. cable guides
    • B62J11/19—Supporting arrangements specially adapted for fastening specific devices to cycles, e.g. supports for attaching maps for mechanical cables, hoses, pipes or electric wires, e.g. cable guides specially adapted for electric wires
    • 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
    • B62K19/00—Cycle frames
    • B62K19/30—Frame parts shaped to receive other cycle parts or accessories
    • 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
    • B62K21/02—Front wheel forks or equivalent, e.g. single tine

Definitions

  • the present invention relates to a bicycle fork, a bicycle frame and a bicycle according to the independent ones
  • a head tube is attached to the front of the bicycle frame where the down tube and the top tube of the bicycle frame meet.
  • Respective ends of the down tube and the top tube are, for example, by means of a welded connection
  • the control tube is oriented in relation to the bicycle frame in such a way that it is deflected counterclockwise by a predetermined angle from the perpendicular direction in order to give the bicycle a good straight-ahead running performance overall.
  • Substantially at portions of the axial ends of the head tube are two
  • Angular contact ball bearings by means of a screw-on head nut, the steerer is virtually lossless in relation to the bicycle frame and without wear on rolling elements (For example, rolling balls) of the angular contact ball bearings freely rotatable or steerable. It thus radial forces and also axial forces are absorbed in both directions.
  • the lower portion of the steerer tube opens into a
  • Fork portions comprising at their distal ends respective receiving portions (e.g., eyes or grooves) for receiving the hub of a front wheel.
  • the upper portion of the steerer protrudes slightly beyond the upper end of the steerer tube.
  • a stem of a stem is inserted by a handlebar.
  • Luffing shaft is axial in relation to the steerer tube
  • Steerer can be connected in a torsionally rigid manner by means of an elongated tensioning screw which extends in the center-axial direction of the extension shaft and which is screwed with its distal external thread into an internal thread of an expansion cone.
  • the clamping screw is mounted with its screw head in an abutment in the Vorbauschaft (recess).
  • one or more sensors may be mounted in a portion in the region of the front hub at the distal end of at least one of the fork sections. These sensors include, for example, a sensor for detecting the rotational speed of the front wheel (rotational speed sensor). As another example, a sensor may be provided which
  • Disc brake or drum brake absorbs (brake sensor).
  • the measuring signals of these sensors are fed directly or indirectly via electrical cables to a controller.
  • This control can be used, for example, in the case of
  • the controller may be an input unit and a
  • Output unit such as a separate keyboard and a separate display device (display).
  • the controller may alternatively comprise a touch-sensitive touchpad as a combined input / output unit.
  • mechanical cables are included, which are guided on brakes for decelerating the front wheel and / or rear wheel. Mechanical cables may also be provided which lead to a gearshift (e.g., chain derailleur or hub gear). These cables can be guided in a sheath (Bowden cable).
  • gearshift e.g., chain derailleur or hub gear
  • the aforementioned cables can each outside of the bicycle fork and on the outer portion of the head tube
  • the cables must have sufficient length at least at the junction between the bicycle fork and the head tube, so that the cables will not break off when steering.
  • Gear shift and a gear lever on the handlebar are less preferred,. because the cables are exposed and thus can be easily damaged. In addition, the cables at
  • the cables are more or less directly at the attachment portion of the respective
  • the position for insertion of the bore or cable gland at the upper portion of the steerer tube must be selected depending on the position of the upper bearing.
  • the position of the upper rolling bearing is dependent on the length of the control tube, which in turn depends on the size of the bicycle frame.
  • this cable feedthrough nevertheless has to be dependent on different control tube lengths (and thus depending on
  • the object of the present invention is in the
  • the bicycle fork comprises a
  • Head tube of a bicycle frame is formed- ? - Wherein the steerer at least partially along the
  • Bicycle fork which includes a steerer, along the sections, at least one cable can be guided so that it is guided within a surrounded by the head tube area up from the head tube. So that the cable can protrude beyond the head tube, a cross-sectional profile deviating from the circular shape of the fork stem is created.
  • An essential advantage of this bicycle fork is that the position of a cable feedthrough for passing the at least one cable out of the interior of the bicycle fork can now be arranged in a region of the steerer tube surrounded by the head tube, or in one by the two Rolling bearing restricted area of the steerer tube
  • Rolling bearing defined portion is positioned, and indeed completely independent of the respective bicycle frame size and thereby differently sized length of the head tube.
  • all bicycle forks regardless of the later associated bicycle frame size, be provided at one and the same position with the cable gland. This is in contrast to the prior art, in which the position of the cable gland in dependence of the later associated bicycle frame. must be chosen.
  • the cables mentioned can be electrical cables for establishing a connection between a sensor and a display or control unit. Furthermore, mechanical cables are included, which are guided on mechanical brakes on the front wheel and / or rear wheel. In the case of hydraulic brakes, the cables are considered hydraulic lines. Mechanical cables may also be included which lead to gear shifts (e.g., chain derailleur or hub gear). The wording "cable” thus means all electrical, mechanical and / or hydraulic cables or conduits and their equivalents.
  • the cross-sectional profile has an in
  • the recess extends along a
  • the recess forms a clearance, which between the steerer tube and a virtual
  • Extension can be performed, regardless of which bicycle frame size later the bicycle fork is assigned.
  • the surface of the clearance is determined so that at least one cable in the axial direction of the steerer tube is feasible. As a result, the at least one cable can easily be led out of the head tube.
  • the recess is formed in the cross-sectional profile as a circle segment.
  • the recess is formed as a cutout extending in the axial direction of the steerer tube.
  • the steerer and a milling tool starting at one
  • Section of the steerer which is arranged in the assembled state within the head tube
  • This milling work can be performed up to the upper end of the steerer, i. up to that
  • the cutout does not reach the upper end of the steerer tube. However, it is important that the cutout be made at least in overlap with that portion of the steerer tube at which the steerer tube engages the inner ring of the upper rolling bearing.
  • the recess is formed as a groove extending in the axial direction of the fork shaft.
  • the recess is formed as a groove extending in the axial direction of the fork shaft.
  • Tip-milling tool a groove registered in the peripheral portion of the steerer tube, wherein the groove in
  • the at least one cable is guided firmly along the groove. In case of more than one cable, the routed cables can not twist.
  • Another advantage is that no more than necessary material of the steerer tube is removed to still lead the at least one cable.
  • An advantage is also that under this requirement a maximum possible cross-sectional area of the steerer remains, so that the stability of the
  • the cross-sectional profile of the steerer is partially formed as a solid profile.
  • Embodiment remains, viewed in sectional view, maximum material, such as steel, aluminum, etc., which at the same time the stability of the steerer is increased. Thus, the steerer can withstand strong forces without breaking.
  • the cross-sectional profile of the steerer is in sections with a in the Mittenaxialraum of
  • Bicycle frame with a head tube and a rotatable therein mounted bicycle fork solved according to one of claims 1 to 9.
  • An advantage of this bicycle frame is that the bicycle fork can be prepared completely independent of the size of the bicycle frame. It must therefore not differently prepared bicycle forks
  • the bicycle frame further comprises at least two rolling bearings, which are each fitted torsionally rigid in the head tube and on the steerer, designed for pivotal mounting of the steerer in relation to the head tube. It is thus created a bicycle frame, in which one or more cables along a freely definable
  • Section inside the bicycle fork can be performed and these cables can be led out by consistently introduced cable entries from the inside of the bicycle fork.
  • the bicycle frame comprises at least one
  • the at least one cable is not subject to any tensile stress and can not be crushed.
  • the at least one cable may be an electrical cable.
  • the at least one cable may be an arrangement of a flexible one
  • Such an arrangement is also referred to as Bowden cable. This cable or
  • This cable can be a tensile force to a mechanical Apply brake (drum brake or disc brake) to decelerate the front wheel and / or rear wheel.
  • a mechanical Apply brake drum brake or disc brake
  • the wording "cable” means a hydraulic line for directing pressurization to this hydraulic brake.
  • the cable may be a cable, which is guided to a gearshift, for example, at least one Kettenumwerfer or a hub gear.
  • the bicycle further comprises at least one electrical sensor for receiving a mechanical size of a front wheel and / or rear wheel.
  • Bicycle according to the invention can electrical connections between this at least one sensor and a
  • Figure 1 is a partial schematic representation of a
  • FIGS 2a-d are sectional views of the control tube in Figure 1;
  • Figure 3 is a partial schematic representation of a
  • FIG. 1 shows a schematic partial representation of a
  • a bicycle fork 1 comprises fork sections 2 2 VX , which open at their upper fork point in a steerer tube 3.
  • the steerer 3 is guided by a cylindrical head tube 4 of the bicycle frame.
  • the control tube 4 is connected at its outer periphery with a top tube 5 and a down tube 6 as structural components of the bicycle frame, for example by welding. At axial ends of the control tube 4 are
  • the bicycle fork 1 can be turned almost without loss and play in relation to the head tube 4 and thus in relation to the bicycle frame or be steered.
  • the steerer 3 is formed at least in sections along the axial direction with a profile shape deviating from the circular shape.
  • the recess 8 is formed in the embodiment shown in Figure 1 as a planar cutout.
  • the recess 8 extends over the upper roller bearing 7 ⁇ ⁇ away, so between
  • the bicycle shown in FIG. 1 comprises, for example, one in the region of the hub of the front wheel (not shown)
  • Speed sensor (not shown) for detecting the speed of the front wheel.
  • the speed sensor converts these
  • the bicycle may for example be an electric bicycle.
  • the controller may provide a drive control for optimal operation of an electric vehicle Driving support motor.
  • the signals can be fed to a speed indicator also mounted on the handlebar.
  • additional sensors may be mounted in the region of the hub of the front wheel, whose signals are also supplied via electrical cables 9 to the controller and / or to an assigned display.
  • the cables 9 are preferably directly on
  • Handlebar assembly extend the cable 9 so a piece along this recess 8. To lead out the cable 9 out of the control tube 3 out the cable. 9
  • the lead-out portions of the cables 9 are connected to the controller and / or the other display device.
  • At least one cable 10 is passed through the down tube 6.
  • This cable 10 may e.g. an electrical cable, which is one on the wheel hub of the rear wheel
  • the cable 10 may be a mechanical cable, for example, guided in a sheath and protected (Bowden cable), which is connected to a mechanical
  • the cable 10 may comprise a hydraulic line which connects to a
  • the cable 10 may be passed through the top tube 5.
  • the cables 9, 10 are thereby advantageously provided by portions of the bicycle fork 1 and the bicycle frame, e.g. Top tube 5 and / or down tube 6, protected.
  • a further advantage is that the cable feedthrough introduced into the steerer tube 3 can be introduced into the steerer tube 3, irrespective of the size of a bicycle frame associated with the bicycle fork 1 (and thus independently of the longitudinal extent of the steering tube 4).
  • a plurality of bicycle forks 1 can be made uniform, which are always complementary to bicycle frames of different sizes.
  • FIGS. 2 a to d each show cross-sections which are taken perpendicular to the axial direction through the upper rolling bearing 7 ⁇ shown in FIG. It is thus
  • FIGS. 2a to d the upper one is Rolling 7 ⁇ ⁇ schematically indicated by its inner ring or by its rotating tread component.
  • Steerer 3 provided with the recess 8, which as a planar cutout along the axial direction of the
  • the steerer 3 is formed in this embodiment as a solid profile.
  • the cable 9 in the example shown is an electrical cable 9 which is guided by the bicycle fork (see FIG. 1) to an electrical sensor in the region of the front wheel hub.
  • the example shown is a mechanical cable 10 or a cable pull which runs in the region of the control tube and is guided from there into the down tube or top tube of the bicycle frame (see FIG. 1).
  • the cable 10 may also be a hydraulic line 10 for a hydraulic brake.
  • Steerer 3 is provided with a along the center axis extending cavity. This cavity may extend along the entire steerer tube 3.
  • Figure 2c shows an example in which the recess 8 is formed as a groove which in the axial direction in the steerer tube 3 is registered.
  • the space formed by the groove between the fork shaft 3 and the inner ring of the rolling bearing 7 ⁇ is sufficient to carry out the two cables 9, 10.
  • Insulation jacket are slightly elastic, are pressed firmly into the groove. As a result, the cables 9, 10 are reliably held along the course of the groove. Thus, the likelihood of damage to the cables 9, 10 is reduced.
  • Figure 2d shows another example in which the cables 9, 10 are received within a recess as a recess 8 in the material of the steerer tube 3.
  • this recess is partially surrounded or constricted by material portions of the steerer tube 3.
  • the cables 9, 10 are separated by the constriction in the recess
  • FIG. 3 shows a bicycle frame in a partial view according to the prior art.
  • at least one cable 19 is guided within sections of a bicycle fork 11.
  • an above an upper roller bearing 17 x in a steerer 13 introduced cable gland, the cable 19 out of the bicycle fork 11 out to the outside.
  • Cable gland at a position on the steerer tube 13 must be introduced, which is dependent on the height or longitudinal extent of a control tube 14. In other words, the position of the grommet is dependent on the size of the intended

Landscapes

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

Abstract

L'invention concerne une fourche de bicyclette (1) comprenant une tige de fourche (3) conçue pour être montée à rotation dans un tube de direction (4) d'un cadre de bicyclette. La tige de fourche (3) présente, au moins dans certaines zones le long de la direction axiale, un profil en coupe transversale non-circulaire.
EP14730095.8A 2014-05-27 2014-05-27 Fourche de bicyclette, cadre de bicyclette et bicyclette Withdrawn EP3172120A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2014/060893 WO2015180756A1 (fr) 2014-05-27 2014-05-27 Fourche de bicyclette, cadre de bicyclette et bicyclette

Publications (1)

Publication Number Publication Date
EP3172120A1 true EP3172120A1 (fr) 2017-05-31

Family

ID=50942655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14730095.8A Withdrawn EP3172120A1 (fr) 2014-05-27 2014-05-27 Fourche de bicyclette, cadre de bicyclette et bicyclette

Country Status (2)

Country Link
EP (1) EP3172120A1 (fr)
WO (1) WO2015180756A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018237353A1 (fr) 2017-06-23 2018-12-27 Social Bicycles Inc. Bicyclette à assistance électrique
US11794848B2 (en) 2020-12-14 2023-10-24 Sram, Llc Hydraulic brake control device with handlebar proximal hose attachment
US11912372B2 (en) 2020-12-14 2024-02-27 Sram, Llc Hydraulic brake control device with handlebar proximal hose attachment

Families Citing this family (10)

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Publication number Priority date Publication date Assignee Title
NL2016166B1 (en) * 2016-01-27 2017-08-01 Just Ride B V Bicycle having a bicycle fork and bicycle fork.
CN106184570A (zh) * 2016-09-30 2016-12-07 郑文艳 防打底前叉
CN108263555B (zh) * 2016-12-30 2023-09-26 浙江神英科技股份有限公司 双筒双轮自行车游戏装置
CH714098A2 (de) 2017-08-29 2019-03-15 Mystromer Ag Hohlzylindrisches Bauteil sowie Vorbau für ein Fahrrad und Fahrrad.
TWI704072B (zh) * 2019-05-30 2020-09-11 拓肯興業股份有限公司 導線座及包括其之車頭碗組
US20210122439A1 (en) * 2019-10-25 2021-04-29 Cycling Sports Group, Inc. Noncircular steerer tube and coupler
BE1027937B1 (nl) 2019-12-30 2021-08-03 Belgian Cycling Factory Nv Een fiets en een voorvork voor een fiets
NL2027820B1 (en) * 2021-03-24 2022-10-07 Formont B V Bicycle Front Fork Cabling
DE202021104078U1 (de) 2021-07-30 2022-11-04 Canyon Bicycles Gmbh Fahrradgabel sowie Fahrradgabel-System
IT202100024450A1 (it) * 2021-09-23 2023-03-23 Gruppo S R L Bicicletta con forcella anteriore sagomata

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US6983949B2 (en) * 2004-05-19 2006-01-10 Shimano Inc. Bicycle headset structure
US7891687B2 (en) * 2004-12-10 2011-02-22 Magna Marque International Inc. Method to conceal bicycle control cables within the handlebars, stem and frame
JP4164087B2 (ja) * 2005-11-16 2008-10-08 株式会社シマノ 自転車用ケーブル配索装置
US7878521B2 (en) * 2007-04-16 2011-02-01 Trek Bicycle Corporation Bicycle frame with device cavity
FR2954266B1 (fr) * 2009-12-21 2011-12-23 Look Cycle Int Jeu de direction de cycle a goupille et cycle comportant un tel jeu de direction
DE202009017382U1 (de) * 2009-12-22 2010-04-22 ALFA POWER CO., LTD., Sindian City Sicherheitslenker für ein Fahrrad
CA2807435A1 (fr) * 2010-08-12 2012-02-16 Douglas Gregg Shadwell Appareil et procede permettant d'acheminer des cables de commande de bicyclette
GB2494714A (en) * 2011-09-19 2013-03-20 Karbon Kinetics Ltd Internal cable routing at headset

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018237353A1 (fr) 2017-06-23 2018-12-27 Social Bicycles Inc. Bicyclette à assistance électrique
US11021211B2 (en) 2017-06-23 2021-06-01 Neutron Holdings, Inc. Electric assist bicycle
EP3642103A4 (fr) * 2017-06-23 2021-06-02 Neutron Holdings, Inc., DBA Lime Bicyclette à assistance électrique
US11794848B2 (en) 2020-12-14 2023-10-24 Sram, Llc Hydraulic brake control device with handlebar proximal hose attachment
US11912372B2 (en) 2020-12-14 2024-02-27 Sram, Llc Hydraulic brake control device with handlebar proximal hose attachment

Also Published As

Publication number Publication date
WO2015180756A1 (fr) 2015-12-03

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