WO2007036225A2 - Cadre de deux-roues, suspension de roue arriere, et systeme de fourche - Google Patents

Cadre de deux-roues, suspension de roue arriere, et systeme de fourche Download PDF

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Publication number
WO2007036225A2
WO2007036225A2 PCT/DE2006/001733 DE2006001733W WO2007036225A2 WO 2007036225 A2 WO2007036225 A2 WO 2007036225A2 DE 2006001733 W DE2006001733 W DE 2006001733W WO 2007036225 A2 WO2007036225 A2 WO 2007036225A2
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WO
WIPO (PCT)
Prior art keywords
swing arm
clamping
rear swing
front fork
hub
Prior art date
Application number
PCT/DE2006/001733
Other languages
German (de)
English (en)
Other versions
WO2007036225A3 (fr
Inventor
Andreas Felsl
Stephan Albrecht
Original Assignee
Andreas Felsl
Stephan Albrecht
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 Andreas Felsl, Stephan Albrecht filed Critical Andreas Felsl
Publication of WO2007036225A2 publication Critical patent/WO2007036225A2/fr
Publication of WO2007036225A3 publication Critical patent/WO2007036225A3/fr

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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
    • B62K25/00—Axle suspensions
    • B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
    • B62K25/28—Axle suspensions for mounting axles resiliently on cycle frame or fork with pivoted chain-stay
    • B62K25/286—Axle suspensions for mounting axles resiliently on cycle frame or fork with pivoted chain-stay the shock absorber being connected to the chain-stay via a linkage mechanism

Definitions

  • the invention relates to a bicycle frame, a rear swing arm and a fork assembly for a two-wheeler.
  • A, designed in one piece construction swingarm for a bicycle is known for example from US 6,581, 950 B1.
  • This conventional rear swing arm uses a tubular swingarm bearing flange to which the swingarm struts of the two swingarm legs are attached.
  • the swingarm bearing flange is pivotally attached to a down tube of the bicycle frame at a first end portion via a swingarm bearing and supported at a second end portion via a damper on the frame.
  • a disadvantage of such rear swingarms is that elaborate welding or soldering constructions or complex casting molds are required in order to ensure the desired stiffness of the rear swing arm and a high directional stability of the rear wheel in the driving application.
  • a front fork assembly with thru-axle is known, for example, from US Pat. No. 6,412,803 B1.
  • This conventional front fork assembly uses a slotted clamping fist arranged on the front of the fork legs for receiving end portions of the hub axle.
  • each two clamping screws are screwed for applying the clamping force.
  • the end portions of the hub axle and corresponding to the inner sides of the clamping fists are out of round, for example, hexagonal shaped.
  • the hub axle has an enlarged outer diameter of a stop collar formed at a first end portion.
  • the hub axle is passed through a second end portion through the first dropout of the front fork, the hub body and the second dropout, so that the stop collar is brought into abutment against the first dropout.
  • a clamping screw with respect to the through holes of the dropouts enlarged head diameter is screwed axially into a threaded bore of the second end portion of the hub axle and tensioned the dropouts of the front fork by tightening the clamping screw against end stops of the hub body. Then the clamping screws of the Clamped claws and thereby fixed the end portions of the hub axle in the dropouts of the front fork.
  • Vorderradgabelan appen A disadvantage of such Vorderradgabelan nieen is that the removal and installation of the front wheel, for example, to maintenance and
  • a saddle post is described at www.thudbuster.com where the saddle is supported by a parallelogram guide with spring / damper element. Such a construction is particularly advantageous in hardtails, as initiated via the undamped rear wheel shocks can be relatively well received.
  • the present invention seeks to provide a simply constructed rear swing arm with high strength and directional stability of the rear wheel.
  • the invention is further based on the object to provide a front fork assembly, in which compared to conventional solutions of the installation and removal of the front wheel is simplified and has a high rigidity.
  • the invention is still the object of the invention to provide a bicycle frame with simplified saddle adjustment.
  • the rear swing arm according to the invention has at least one swing arm bearing and two swing arm legs, on each of which a dropout is designed to receive a rear wheel hub.
  • the rocker arms are prefabricated separately from each other and detachably connected to each other via the swingarm bearing. That is, in this solution, the Schurädschwinge is in contrast to the prior art according to US 6,581, 950 B1 not in one piece but designed in several parts, with essentially two rocker arms prefabricated separately from each other - for example by die casting, welding or soldering or in fiber composite construction - And then connected to each other via at least one swing bearing.
  • the dropouts extend approximately in the longitudinal direction of the front fork through each one end portion of a hub axle - A -
  • Front hub through and are connected via a clamp with the hub axle.
  • the bicycle frame is designed with a support frame for the saddle, the geometry of which is variable over at least three joints, so that by adjusting the support frame geometry, the height and possibly the inclination of the saddle in a simple manner can be changed.
  • the support frame essentially consists of a down tube which extends from a bottom bracket to a control tube and which is connected to a top tube arrangement in the region of the control tube.
  • the saddle is supported on a seat tube assembly connecting the top tube assembly and the down tube such that the support frame is approximately triangular shaped with the hinges in the corner portions.
  • Figure 1 is a bicycle with a rear swing arm according to the invention
  • FIG. 2 is a detailed view of the rear swing arm of the invention of Figure 1;
  • FIG. 3 shows one of the rocker arms of FIG. 2 with a part of the pipe, the further cross struts and the rocker bearing;
  • Figure 4 is a sectional view of the bicycle of Figure 1 with inserted rear swing arm in the region of the swingarm bearing;
  • Figure 5 shows a variant of a Dämpferanlenkung.
  • Figure 6 is an overall view of the front fork assembly of Figure 1;
  • FIG. 7 shows a detail of the front fork of FIG. 6 with the front hub inserted
  • Figure 8 is a detail view of the front hub of Figure 7;
  • Figure 9 is a sectional view of the front fork of Figure 6 with inserted front hub and
  • FIG. 10 shows a bicycle frame according to the invention.
  • FIG. 1 shows a bicycle 1 with a front fork assembly 2 designed as a double-bridge telescopic fork, which essentially has a front fork 4 with two pneumatically sprung fork legs 6, 8 and a front hub 10, via which a front wheel 12 is rotatably mounted on the front fork 4.
  • the rear wheel 14 of the bicycle 1 is mounted on a pivotable about a swingarm bearing 16 according to the invention rear swingarm 18, which is supported by a pneumatic damper 20 relative to a frame 22.
  • This is made of carbon fiber reinforced plastic or light metal, preferably made of a high-strength aluminum alloy and consists essentially of a kinked running top tube 24, a down tube 26 and a seat tube 28, wherein at converging ends of the top tube 24 and the down tube 26, a steering tube 30 is provided in which the front fork 4 is rotatably mounted via a headset.
  • the top tube 24 is attached to the seat tube 28 relative to the attachment to the steering tube 30 comparatively low-lying, so that there is an easy entry possibility for the driver.
  • FIG. 2 which shows a detailed illustration of the rear swinging arm 18 of FIG. 1, this has two swinging arms 42, 44, on each of which a dropout 45, 46 for receiving a rear wheel hub (not shown) of the rear wheel 14 (see FIG. 1). is trained.
  • the rocker arms 42, 44 are prefabricated separately from each other and detachably connected to each other via the swingarm bearing 16.
  • the rear swing arm 18 is formed in several parts, the two rocker arms 42, 44 separately from each other, for example by die casting, a welding or soldering or prefabricated in fiber composite construction and then connected to each other via the swingarm 16.
  • One of the transverse struts is formed as a tube 48 with a comparatively large outer diameter and a correspondingly high torsional and bending stiffness, the end portions are each inserted into a Schwingenlagerflansch 54, 56 of the rocker arms 42, 44.
  • the tubular cross member 48 is arranged for spacing and stiffening the rocker arms relatively close to the point of application of the damper 20, so that there is a high strength and improved overall rigidity of the rear swing arm 18 in this area.
  • the second cross member 50 is at a distance from the swing arm bearing 16 and the tube 48 in the vicinity of the rear wheel 14 (see Figure 1) to the
  • Swing legs 42, 44 arranged and has a hollow cross-section with respect to the tube 48 substantially smaller diameter. Due to the
  • the cross strut 50 is fixed by means of a clamp 64 on the rocker arms 42, 44.
  • each one attached to the rocker arms 42, 44 clamping shell 66 and an attachable to the cross strut 50 free clamping shell 68 is provided, the inner contours are adapted to the shape of the cross member 50 and engage around these sections.
  • the clamping force is achieved by means of clamping bolts
  • the damper 20 is supported at its swing-side, lower end via a, the third cross member 52 forming transverse pin and two retaining plates 72, 74 on the Schwingenlagerflanschen 54, 56.
  • the holding plates 72, 74 are provided on the damper side, each with two staggered receiving bores 76 for the transverse bolt 52, so that the point of application of the damper 20 on the rear swing arm 18 is adjustable.
  • the leverage ratios i. the distance of the point of application of the damper 20 of the swingarm bearing 16 and thus the compression travel and the spring characteristic of the rear wheel 14 changed.
  • the holding plates 72, 74 are brought into abutment via a contact surface 78 with a support surface 80 of the rocker flange 54 and 56, respectively, and connected thereto in each case via two fastening screws 82. These penetrate the Schwingenlagerflansch 54, 56 and are fixed by means of positively received in grooves 84 cylindrical fastening nuts 86.
  • the Schwingenlagerflansche each have four adjacent arranged parallel grooves 84 for receiving the fastening nuts 86, which are each provided with a mounting hole 88, wherein the mounting holes 88 arranged in pairs offset in height and connected in the form of a slot, so that the holding plates 72, 74 respectively along the support surface 80 of the Schwingenlagerflansches 54 and 56 can be moved in the direction of the damper 20 to change the geometry of the bicycle 1.
  • each of the two rocker arms 42, 44 is designed with an upper and a lower strut 90 and 92, which are connected on the one hand in the region of the dropouts 45, 46 and on the other hand in the area of the aforementioned Schwingenlagerflansche 54, 56.
  • the upper struts 90 are each connected to the Schwingenlagerflanschen 54, 56 in the region of the damper 20, so that there is a direct application of force of the wheel forces in the damper 20 and thereby an improved response of the damping.
  • the lower struts 92 are deviating from the cylindrical shape formed substantially rectangular with rounded edges 94 and have a relation to the upper struts 90 enlarged cross section. The cross section of the approximately oval upper struts 90 is steadily reduced by the swingarm bearing flanges 54, 56 towards the dropouts 45, 46, so that a uniform distribution of forces in the rear swingarm 18 is achieved.
  • FIG. 3 which shows the rocker arm 42 from FIG. 2 with a part of the pipe 48, the further transverse struts 50, 52 and the swingarm bearing 16, the lower struts 92 are each fastened and run with a first end section 96 in a fastening section 98 of the swingarm bearing flange 54 from this out in the direction of the respective dropout 45 or 46 initially curved arcuately downwards.
  • the lower struts 92 subsequently have a bend 100 away from the longitudinal axis of the rear swinging arm 18, i. from the rear wheel 14 (see Figure 1) away, outwards. After a second bend 102 toward the longitudinal axis of the rear swing arm 18, i.
  • the lower struts 92 extend in a straight line at a small opening angle to the dropouts 45, 46.
  • These are designed as separately manufactured parts with a plate-shaped base body 104, the one-sided open slot 106 for receiving the rear hub and mounting holes Has 108 for the rear derailleur and the brake assembly and with the upper and lower struts 90, 92 welded.
  • the plate-shaped base body 104 is extended to attach the upper and lower struts 90, 92 to a mounting flange 110, wherein between the mounting flange 110 and the down tube 92 each have an approximately triangular stiffening rib 112 is provided.
  • rocker arms 42, 44 are not limited to the described embodiment, each having an upper and a lower strut 90, 92, but the rocker arms 42, 44 may have more than two or only one, for example by die casting or fiber composite construction strut.
  • the Swing arm be integrally designed as an integral component of Schwingenlagerflansch and swingarm struts.
  • FIG. 4 which shows a sectional view of the bicycle 1 with inserted rear swing arm 18 in the area of the swing arm bearing 16
  • the swing arm bearing 16 is designed with two spaced roller bearings 114, 116 which can be prestressed in the frame-side swing bearing bush 34 by means of a split clamping sleeve 118.
  • the collet members are concentrically disposed in the rocker bushing 34 and are threadedly engaged so that the collet sleeve length is adjustable to adjust the bearing clearance and preload from outside.
  • the split clamping sleeve 118 of the swingarm bearing 16 consists essentially of an insert sleeve 120 and an adjusting sleeve 122.
  • the insert sleeve 120 is made multi-stepped at a first end portion 124 and inserted from the outside into a corresponding, executed with a first stepped shoulder 126 and a second stepped shoulder 128 stepped bore 130 of the left Schwingenlagerflansches 54, for example, screwed or pressed.
  • the insert sleeve 120 is slotted at an outer end portion (not shown).
  • the first roller bearing 114 is arranged, which is brought via an inclined surface 132 into abutment against a contact shoulder 134 of a bearing cone 136 of the Schwingenlagerflansches 54.
  • the rolling bearing 114 is supported towards the center of the sleeve via an inclined surface 138 on an approximately Z-shaped, fitted in the rocker bearing bushing 34 bearing shell 140, which in turn is supported on an end face 142 of the rocker bearing bushing 34.
  • the second roller bearing 116 is arranged in the region of the adjusting sleeve 122 with a bearing shell 144, which is supported via the bearing shell 144 on the second end face 146 of the pivot bearing bushing 34.
  • the two rolling bearings 114, 116 are arranged as far as possible away from each other in the swing arm bearing 16, so that shortened due to the large support width of the lever arm to the force action points out and the risk of Achswinkiegung is minimized.
  • the rolling bearings 114, 116 are largely maintenance-free and environmentally sealed encapsulated and additionally by one in a groove 148 of the bearing shells 140, 144 and a corresponding groove 150 of the Schwingenlagerflansche 54, 56 inserted circumferential, approximately T-shaped seal 152 from contamination and protected from penetrating moisture.
  • rolling bearings 114, 116 are used in the embodiment shown each angular contact ball bearings use.
  • roller bearings or other ball bearings that accommodate axial and radial loads can be used.
  • the end portion 154 of the insert sleeve 120 spaced from the swing arm bearing flange 54 is provided with an internal thread 156, into which the adjustment sleeve 122 is screwed in via a radially stepped back, provided with a corresponding external thread 158 connecting portion 160, so that the adjusting sleeve 122 via a radial collar 162 in Appendix is brought to the inner step shoulder 128 of the stepped bore 130 of Schwingenlagerflansches 56.
  • a clamping cone 164 is introduced into the adjusting sleeve 122 as an anti-rotation lock, the outer diameter of which essentially corresponds to the inner diameter of the adjusting sleeve 122.
  • the clamping cone 164 consists of an outer cone 166, a clamping cone 168 and a double cone sleeve 170 arranged between the outer cone 166 and the clamping cone 168.
  • the outer cone 166 is in contact with the outer end face of the adjusting sleeve 122 and the second stepped shoulder 128 via a radially expanded support region 172 brought the stepped bore 130 of Schwingenlagerflansches 56 and connected via a clamping bolt (not shown) with the clamping cone 168.
  • the adjusting sleeve 122 is provided in the region of the clamping cone 164 at its end remote from the connecting portion 160 with two diametrically opposite, from the end axially parallel to the longitudinal axis of the swing arm bearing 16 extending slots 174, which on the one hand as a contact surface for a screwing the adjusting
  • the clamping cone 164 serve by the clamping cone 164, a spreading of the adjusting sleeve 122 in the Schwingenlagerflansch 56 so that the outer surface of the adjusting sleeve 122 is pressed against the inner surface of the stepped bore 130 of the Schwingenlagerflansches 56 and the adjusting sleeve 122 against loosening is secured.
  • the clamping bolt is screwed into the clamping cone 168 and the distance between the outer cone 166 and the clamping cone 168 is reduced so that the double-cone sleeve 170 is expanded radially outwards and applies a clamping force to the adjusting sleeve 122.
  • FIG. 5 shows an alternative adjustment option for the damper attachment point, which has a better rigidity than the previously described solution.
  • FIG. 5 shows part of the rear swing arm according to FIG. 2 in a view from the left on the swing arm leg 42 of the banana-shaped rear swing arm 18. The basic structure of this rear swing arm 18 is the same as in the previously described exemplary embodiment, so that only the differences are discussed here.
  • corresponding latching projections 184 are formed with the locking grooves, which allow a displacement of the support channels 180 in the direction of the arrow in FIG. By this displacement, the articulation point of the damper on the rear swing arm 18 can be adjusted and thus change the chassis geometry.
  • the determination of the two support brackets 180 in the desired position on the respective Schwingenlagerflansch 54, 56 carried by clamping screws 186, the support brackets 180 and the support surfaces 176 of the Schwingenlagerflansche 54, 56 and a counter plate 188 enforce, are arranged in the thread for the clamping screws 186 ,
  • the two support brackets 180 are each designed with a receiving bore 76 for the transverse strut 52 (see FIG. 2).
  • FIG. 6 which shows an overall view of the front fork arrangement 2 from FIG. 1, in the exemplary embodiment shown this is designed as a telescopic fork in double bridge construction, in the standpipes 234, 236 of the fork legs 6, 8 at its upper end by means of an upper and a lower fork bridge 238, 240 in the steering tube 30 of the frame 22 (see Figure 1) are rotatably mounted.
  • a control head tube 242 which is rotatably supported via an upper and a lower steering head bearing 244, 246 on the steering tube 30 of the frame 22.
  • the fork bridges 238, 240 each have two forked sections designed as clamping sections 248, 250, through which the respective standpipe 234 or 236 of the respective fork leg 6, 8 is guided and frictionally fixed.
  • the front fork 4 is connected to a handlebar stem 254 (see FIG. 1) via a handlebar stem 252 fastened to the upper fork bridge 238.
  • a dip tube 272, 274 is slidably mounted in each case, the free end portion of each a dropout 276, 278 of the front fork 4 is formed on which the front hub 10 is releasably attached.
  • the dropouts 276, 278 extend longitudinally of the front fork 4, i. in the longitudinal direction of the fork legs 6, 8 through in each case an end portion 280, 282 of a hub axle 284 of the front hub 10 and are connected via a clamping 286, 288 with the hub axle 284.
  • the dropouts 276, 278 pass through the hub axle 284, so that an extremely rigid, positive and non-positive connection is ensured, which is easy to install. This will be explained in more detail below with reference to FIG.
  • FIG. 7 shows a detailed representation of FIG
  • Front fork 4 shown in Figure 6 with inserted front hub 10 the clamping of the front hub 10 takes place in each case by means of an attached to the fork legs 6, 8 upper clamping shell 290, 292 and one on the free end portions of the dropouts 276, 278 patch lower clamping shell 294, 296, wherein the clamping shells 290, 292, 294, 296 engage around the hub axle end sections 280, 282 in sections and are subjected to a clamping force.
  • the dropouts 276, 278 pass through both the clamping shells 290, 292, 294, 296 and the Hubachsenendabroughe 280, 282 and are provided in the embodiment shown in each case with an external thread 298 on which a clamping nut 300, 302 is screwed for applying the clamping force.
  • the clamping shells 290, 292, 294, 296 each have a concave, approximately half-shell-shaped support portion 304 whose radius of curvature substantially corresponds to the radius of the hub axle 284.
  • the end portions 280, 282 of Hub axle 284 received flat in the clamping shells 290, 292, 294, 296, so that the introduction of force into the fork legs 6, 8 and the clamping takes place directly and over a large area.
  • the support portions 304 go in the range 'of the fork legs 6, 8 and in the region of the clamping nuts 300, 102 respectively in a partially cylindrical fixing portion 306, whose outer diameter corresponds approximately to the diameter of the fork legs 6. 8
  • the clamping nuts 300, 302 each have an approximately cylindrical base body with two plane-parallel surfaces 308, 310 which passes into a handling section 312 with two diametrically arranged handles 314 for tightening the clamping nuts 300, 302 by hand.
  • the handling section 312 facilitates the screwing of the clamping nuts 300, 302 on the dropouts 276, 278 with the required tightening torque at low hand forces.
  • the front wheel hub 12 For mounting the front wheel 12 (see Figure 1), the front wheel hub
  • the clamping nuts 302, 304 for example via a lock nut or a Sich ceremoniesssplint be provided.
  • the clamping of the front hub 10 via a quick-release system for example via quick-release nuts.
  • FIG. 8 which shows an individual illustration of the front wheel hub 10 from FIG. 6, the end sections 280, 282 of the hub axle 284 and the cooperating regions of the clamping shells 290, 292, 294, 296 (see FIG. 6) are provided with flats 318 for the positive reception of the Hub axle 284 executed. This prevents twisting of the hub axle 284 within the clamp.
  • four flats 318 are tangentially formed on each hub axle end portion 280, 282, which extend substantially in the longitudinal direction of the hub axle 284 and have an approximately rectangular basic shape. In principle, more than four flattenings 318 may be arranged in the hub axle.
  • the axial length L of the flats 318 of the hub axle 284 corresponds substantially to the width (in the axial direction) of the clamping shells 290, 292, 294, 296 in the region of the support portion 104, so that the clamping shells 290, 292, 294, 296 engage in the flats 318 of the hub axle 284 and fix them axially. Thereby, the rigidity of the connection of the dropouts 276, 278 is further increased in this area.
  • FIG. 9 which shows a sectional illustration of the front fork 4 with front hub 10 from FIG. 6,
  • the dropouts 276, 278 of the front fork 4 are each formed by an insert 320 or 322 fastened to one of the fork legs 6, 8 in the exemplary embodiment shown. These are screwed via a cylindrical mounting portion 324, 326 in the ends of the fork legs 6, 8, ie in the free end portions of the dip tubes 272, 274 and form the upper clamping shells 290, 292, which engage around the Hubachsenendabrough 280, 282 sections.
  • the insert 292 also carries an adapter 328 for a caliper (not shown) of a hydraulically actuated disc brake.
  • the clamping shell 292 is provided on the rear side of the fork with two approximately mutually perpendicular support surfaces 330, 332 for the adapter 328 of the caliper.
  • the depth of engagement of the inserts 320, 322 in the dip tubes 272, 274 is limited by a radial collar 334, which forms a contact surface 336 for the end faces of the dip tubes 272, 274.
  • the free ends of the inserts 320, 322 are each formed by a screwed into this mounting bolts 338, 340, which extend through a respective through hole 342, 344 of the hub axle 284 of the front hub 10 therethrough.
  • An end portion of the fastening bolts 338, 340 is provided with a threaded portion 346 which is screwed into a corresponding threaded projection 348 of a receiving bore 350 of the inserts 320, 322.
  • the rigidity of this connection is increased by a fitting face portion 352 of the insert 320, 322 which is radially widened in relation to the thread projection 348 and which is brought into abutment against the outer peripheral face of the fastening bolt 338, 340.
  • the fastening bolts 338, 340 have a hollow cross-section and thus have a high flexural rigidity with low material usage and thus weight.
  • the free end portion of the mounting bolts 338, 340 is each closed by a plug screw 354 to prevent ingress of dirt and moisture. Due to the multi-part design of the dropouts 276, 278, the formation of the upper clamping shells 290, 292 and the fastening bolts 338, 340 does not require excessive manufacturing complexity, since both parts have a comparatively simple structure. This can continue to use different materials and Surface treatments for the clamping shells 290, 292 and the fastening bolts 338, 340 are used.
  • the front wheel hub 10 used essentially consists of the hub axle 284 and a hollow hub shell 356 arranged concentrically therewith, which is rotatably mounted on the hub axle 284 via two roller bearings 358, for example deep groove ball bearings.
  • the hub shell 356 has two approximately disc-shaped hub plates 360, 362 for attachment of wheel spokes 364 (see Figure 1).
  • For receiving a brake disk of the hub plate 362 is further provided with four offset by 90 ° to each other, each provided with a threaded hole attachment lugs 368 provided which connect the hub shell 356 and the hub plate 362 (see also Figure 8).
  • the rolling bearings 358 are supported toward the hub center by a abutment shoulder 370 in the end portion of the hub shell 156 and an abutment shoulder 372 of the hub axle 284.
  • the abutment shoulder 370 of the hub shell 356 is aligned with the abutment shoulder 372 of the hub axle 284 so that the unillustrated inner ring of the roller bearings 358 is axially supported toward the hub center by the abutment shoulder 372 of the hub axle 284 while the outer ring (not shown) of the antifriction bearings 358 extends axially the abutment shoulder 370 is supported in the hub shell 356.
  • the rolling bearings 358 are maintenance-free and have seals against dust and moisture.
  • a rotationally symmetrical support ring 374 is pushed on which closes the hub shell 356 to the outside and supports the inner ring of the roller bearings 358.
  • a seal not shown, for example, an approximately V-shaped lip seal arranged so that from the outside penetrating dust or water or other contaminants do not reach the storage area can.
  • the inner radial surfaces of the stepped recessed end portions 376 of the support rings 374 continue with the front sides of the hub body 356 one, the seals upstream sealing gap (labyrinth seal).
  • a particularly high sealing effect is achieved.
  • a circumferential annular groove 378 is provided for receiving a sealing ring, not shown, which seals the hub axle 284 relative to the support ring 374.
  • the sealing rings continue to cause the support rings 374 without the use of tools by hand from the Hub axle 284 are removable and on the other hand, that the support rings 374 do not unintentionally detach from the hub axle 284 or move on this.
  • the front wheel hub 10 can be easily disassembled without the bearing and sealing elements falling out of the hub shell 356.
  • the hub axle 284 has in the embodiment shown an approximately cylindrical base body, which is penetrated by a stepped through-bore 380, which is tapered towards its two end portions 280, 282 starting from a central region step-shaped, so that the wall thickness in the region of the rolling bearings 358 and again is increased in the clamping area. Due to the hub axle 284 designed as a hollow axle with a large axle diameter, it has a high flexural rigidity with low material usage and thus weight.
  • the hub shell 356 and the hub axle 284 are made of a high strength aluminum alloy. The ends of the hub axle 284 are closed according to Figure 1 via a respective cover 182 to prevent contamination.
  • the front fork assembly 2 is not limited to the described embodiment with a double bridge fork 4 in Upside
  • Front fork design find use. Furthermore, for the
  • Front hub other hub types such as with cone bearings, use find.
  • FIG. 10 shows parts of a novel frame 401 of the mountain bike.
  • an upper tube assembly 408 which is also connected to the control tube 406, wherein in the connection region of the down tube 402 and the upper tube assembly 408 to the control tube 406, a stiffener 410 is provided to increase the frame stiffness.
  • the upper tube assembly 408 has an articulated arm 412 which is articulated via a control tube side hinge 414 to an upper tube stub 416, which is connected via the stiffener 410 fixed to the down tube 402 and the control tube 406.
  • the end portion of the articulated arm 412 remote from the hinge 414 is articulated via a saddle-side hinge 418 to a seat tube assembly 420, which a saddle 422 is supported.
  • the saddle 422 has a seatpost 424, which dips into a seat tube 426 and is clamped there by means of a clamping device, not shown.
  • the seat tube 426 is supported by a spring or a pneumatic / hydraulic cylinder 428 and a bottom bracket joint 430 on the bottom bracket portion 404 or the down tube 402, so that through the three joints 414, 418, 430, the down tube 402, the top tube assembly 408 and the seat tube assembly 420 an approximately triangular support frame 432 is formed, the geometry of which is variable by length adjustment of the seat tube assembly 420.
  • the frame 401 is executed with a damped rear triangle in the form of a banana rocker 434, which is articulated as a single link via a swingarm bearing 434 above the bottom bracket 404 on the down tube 432.
  • the suspension / damping of the rear end via a conventional damper 436 which on the one hand acts on a bracket 438 of the banana swing arm 434 and on the other hand supported on the stiffener 410.
  • the saddle-side hinge 418 is arranged in the direction of travel in front of the axis A of the seat tube assembly 420.
  • this joint 418 can also lie behind the axis A or in the axis A in the direction of travel.
  • the position of the control tube side hinge 414 is preferably selected so that the distance between the axis of the control tube 406 and the hinge 414 is smaller than the distance between the two joints 414 and 418.
  • the cylinder 428 or the spring may be integrated in the seat tube 426 or this - similar to the illustrated embodiment - support from below.
  • the spring or the cylinder 428 are provided with a lock, which may be performed, for example, in a spring as a pawl and a pneumatic / hydraulic cylinder by a check valve which is operable from the handlebar forth.
  • a lock allows the driver to adjust the seat position during the journey without stopping to the respective operating condition, for example, when releasing the lock by applying the full body weight of the saddle is lowered and by reducing the weight on the saddle due to the biasing force of the spring or ., the cylinder of the saddle 422 extends upward. The upper and lower end position of the saddle 422 can then be limited by suitable stops to prevent excessive saddle adjustment.
  • the top tube assembly 8 is accordingly inclined downwards, which gives the bike a more dynamic and better handling. Another advantage is that with a downward adjustment of the saddle 422, the center of gravity of the frame 1 is lowered.
  • the frame structure according to the invention with at least three joints 414, 418, 430 and a length-adjustable seat tube assembly 420 can be used in principle for all hardtails and fulls with any rear end (single link, four-link, multi-link, drive swing ).
  • the rocker arms 42, 44 prefabricated separately from each other and releasably connected to each other via the swingarm bearing 16.
  • a front fork assembly 2 for a two-wheeler in particular a bicycle 1, with one on dropouts 76, 78 of a
  • Front fork 4 detachably mounted front hub 10.
  • Achsability ongoing flattenings are provided.
  • a bicycle frame with a dreigeligen support frame whose geometry is adjustable for height adjustment of a saddle.

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  • Mechanical Engineering (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)

Abstract

La présente invention concerne une suspension de roue arrière (18) destinée à un deux-roues (1), en particulier à une bicyclette, comprenant au moins un support de suspension (16) et deux branches de suspension (42, 44) sur lesquelles est formée respectivement une extrémité d'arrêt (45, 46) destinée à prendre en charge un moyeu de roue arrière. Selon l'invention, les branches de suspension (42, 44) sont préfabriquées séparément l'une de l'autre, et sont reliées de façon amovible par le support de suspension (16). L'invention a également pour objet un système de fourche de roue avant (2) destiné à un deux-roues, en particulier à une bicyclette (1), comprenant un moyeu de roue avant (10) fixé de façon amovible à une extrémité d'arrêt (76, 78) d'une fourche de roue avant (4). Selon l'invention, les extrémités d'arrêt présentent des sections d'extrémités ouvertes d'un côté, qui présentent des méplats parallèles à la partie de réception d'essieu. L'invention concerne enfin un cadre de deux-roues comprenant un cadre d'appui à trois articulations, dont la géométrie peut être modifiée pour régler la selle en hauteur.
PCT/DE2006/001733 2005-09-30 2006-10-02 Cadre de deux-roues, suspension de roue arriere, et systeme de fourche WO2007036225A2 (fr)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
DE102005047534 2005-09-30
DE102005047534.5 2005-09-30
DE102005049683.0 2005-10-14
DE102005049683 2005-10-14
DE102005049682.2 2005-10-14
DE102005049682 2005-10-14
DE102006004473 2006-01-30
DE102006004474 2006-01-30
DE102006004474.6 2006-01-30
DE102006004473.8 2006-01-30

Publications (2)

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WO2007036225A2 true WO2007036225A2 (fr) 2007-04-05
WO2007036225A3 WO2007036225A3 (fr) 2007-06-14

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8006993B1 (en) 2010-05-14 2011-08-30 Specialized Bicycle Components, Inc. Bicycle frame
US8439383B2 (en) 2009-06-30 2013-05-14 Specialized Bicycle Components, Inc. Bicycle shock with extension arms
WO2022195385A1 (fr) * 2021-03-19 2022-09-22 Sachin Anant Jadhav Ensemble bras oscillant fendu pour véhicule à deux roues

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BE540523A (fr) *
JPS54108325A (en) * 1978-02-15 1979-08-24 Suzuki Motor Co Rear wheel suspension system of bicycle
US5284354A (en) * 1993-01-04 1994-02-08 Western States Import Company, Inc. Bicycle suspension system
JPH11115864A (ja) * 1997-10-21 1999-04-27 Bridgestone Cycle Co 自転車用緩衝装置
JP2001001976A (ja) * 1999-06-18 2001-01-09 Moto Shop Wheelie:Kk ショックユニットの取付けマウント
US20020084620A1 (en) * 2000-12-21 2002-07-04 Chih-Wang Yu Mini bicycle
WO2004089734A1 (fr) * 2003-04-07 2004-10-21 Ina-Schaeffler Kg Bicyclette dotee d'une suspension de roue arriere
US20060060407A1 (en) * 2004-09-21 2006-03-23 Siddle Mark L Methods and apparatus for conversion of motorcycle rear suspension

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE540523A (fr) *
JPS54108325A (en) * 1978-02-15 1979-08-24 Suzuki Motor Co Rear wheel suspension system of bicycle
US5284354A (en) * 1993-01-04 1994-02-08 Western States Import Company, Inc. Bicycle suspension system
JPH11115864A (ja) * 1997-10-21 1999-04-27 Bridgestone Cycle Co 自転車用緩衝装置
JP2001001976A (ja) * 1999-06-18 2001-01-09 Moto Shop Wheelie:Kk ショックユニットの取付けマウント
US20020084620A1 (en) * 2000-12-21 2002-07-04 Chih-Wang Yu Mini bicycle
WO2004089734A1 (fr) * 2003-04-07 2004-10-21 Ina-Schaeffler Kg Bicyclette dotee d'une suspension de roue arriere
US20060060407A1 (en) * 2004-09-21 2006-03-23 Siddle Mark L Methods and apparatus for conversion of motorcycle rear suspension

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8439383B2 (en) 2009-06-30 2013-05-14 Specialized Bicycle Components, Inc. Bicycle shock with extension arms
US8006993B1 (en) 2010-05-14 2011-08-30 Specialized Bicycle Components, Inc. Bicycle frame
WO2011142882A1 (fr) * 2010-05-14 2011-11-17 Specialized Bicycle Components, Inc. Cadre de bicyclette
US8459680B2 (en) 2010-05-14 2013-06-11 Specialized Bicycle Components, Inc. Bicycle frame
US8622411B1 (en) 2010-05-14 2014-01-07 Specialized Bicycle Components, Inc. Bicycle frame
US8801023B2 (en) 2010-05-14 2014-08-12 Specialized Bicycle Components, Inc. Bicycle frame
EP2907735A1 (fr) * 2010-05-14 2015-08-19 Specialized Bicycle Components, Inc. Cadre de bicyclette
EP2907736A1 (fr) * 2010-05-14 2015-08-19 Specialized Bicycle Components, Inc. Cadre de bicyclette
WO2022195385A1 (fr) * 2021-03-19 2022-09-22 Sachin Anant Jadhav Ensemble bras oscillant fendu pour véhicule à deux roues

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