EP4013670A1 - Suspension de roue pour une bicyclette - Google Patents

Suspension de roue pour une bicyclette

Info

Publication number
EP4013670A1
EP4013670A1 EP20754750.6A EP20754750A EP4013670A1 EP 4013670 A1 EP4013670 A1 EP 4013670A1 EP 20754750 A EP20754750 A EP 20754750A EP 4013670 A1 EP4013670 A1 EP 4013670A1
Authority
EP
European Patent Office
Prior art keywords
wheel axle
sleeve
screw
bicycle
wheel
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Withdrawn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
EP20754750.6A
Other languages
German (de)
English (en)
Inventor
Herbert Sammüller
Theodor Piele
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.)
Fazua GmbH
Original Assignee
Fazua GmbH
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 Fazua GmbH filed Critical Fazua GmbH
Publication of EP4013670A1 publication Critical patent/EP4013670A1/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Withdrawn legal-status Critical Current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
    • B62K25/00—Axle suspensions
    • B62K25/02—Axle suspensions for mounting axles rigidly on cycle frame or fork, e.g. adjustably
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/02—Hubs adapted to be rotatably arranged on axle
    • B60B27/023—Hubs adapted to be rotatably arranged on axle specially adapted for bicycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
    • B62M6/40—Rider propelled cycles with auxiliary electric motor
    • B62M6/60—Rider propelled cycles with auxiliary electric motor power-driven at axle parts
    • B62M6/65—Rider propelled cycles with auxiliary electric motor power-driven at axle parts with axle and driving shaft arranged coaxially
    • 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
    • B62K2206/00—Quick release mechanisms adapted for cycles

Definitions

  • the invention relates to a wheel suspension for a bicycle, the bicycle with the wheel suspension, a hub of the bicycle and a bicycle frame section.
  • a wheel suspension for a bicycle by means of which a wheel is attached to the bicycle, conventionally has two dropouts arranged in alignment.
  • the dropouts for the front wheel of the bicycle are conventionally arranged on a fork of the bicycle and the dropouts for the rear wheel of the bicycle are conventionally arranged on the region of the frame of the bicycle which is located at the rear in the direction of travel of the bicycle.
  • a wheel axle of the wheel is inserted into the dropouts. Then the wheel axle is attached to the bike using two nuts or a quick release.
  • the disadvantage here is that the wheel axle can be installed at an angle. This can lead to the impeller dragging against the brake associated with the impeller.
  • the object of the invention is therefore to create a wheel suspension for a bicycle, the bicycle with the wheel suspension, a hub of the bicycle and a bicycle frame section in which an inclined installation of a wheel of the bicycle can be avoided.
  • the wheel suspension according to the invention for a bicycle has a wheel axle which has an internal thread at each of its two axial ends, a bicycle frame section of the bicycle which has a first frame end and a second frame end, each of which has a dropout in which one of the axial ends is arranged , and each have a wall that delimits the dropout in the axial direction of the wheel axle and has a through hole that communicates with the dropout, one sleeve for each of the frame ends, which is arranged concentrically with the through hole in the through hole in a form-fitting manner, and one screw for each of the frame ends, which is arranged concentrically with the sleeve and extends positively through the sleeve and via the axial end into the wheel axle, the screw thread of the screw engaging the internal thread.
  • the respective screw Since the sleeve is positively arranged in the through hole at the first frame end and at the second frame end and the screw extends through the sleeve in a form-fitting manner, the respective screw has a high position at both the first frame end and the second frame end Accuracy set. Because the two screw threads of the two screws are each in engagement with the associated internal thread of the wheel axle, the position of the wheel axle is also fixed with high accuracy. This means that it is no longer possible to attach a running wheel belonging to the wheel axle at an angle to the bicycle frame section. In addition, by providing the walls, the bicycle frame section is advantageously more torsion-resistant than in the case of a bicycle frame section that has conventional dropouts without the walls.
  • the sleeves have a larger surface area compared to the screws, so that the forces that are transmitted to the bicycle frame section result in lower pressures on the bicycle frame section than would be the case if the screws were fastened directly to the bicycle frame section.
  • the provision of the sleeves thus leads to a low mechanical load on the bicycle frame section.
  • the sleeves can be replaced in the event of damage, which is not possible or only possible with great effort in the case of the bicycle frame section.
  • a bicycle frame is understood to mean the actual bicycle frame but also a front fork of the bicycle which is set up to hold the front wheel of the bicycle.
  • the dropout is understood to be an area delimited by the bicycle frame in the radial direction of the wheel axle and free from the bicycle frame, in which the wheel axle is to be inserted for fastening the wheel to the bicycle frame section.
  • the bicycle frame section is understood to mean, for example, a front fork of the bicycle which is set up to hold the front wheel of the bicycle, or a rear fork of the bicycle which is set up to hold the rear wheel of the bicycle.
  • the rear fork may have chain stays and seat stays of the bicycle.
  • the bicycle frame section can also be two connecting pieces of the bicycle, each of the connecting pieces connecting one of the chain stays of the bicycle and one of the seat stays of the bicycle to one another.
  • the front fork can also be a suspension fork which has a vibration damper on each of the two arms.
  • the wheel is positioned together with the wheel axle attached to the wheel between the first frame end and the second frame end and the two axial ends of the wheel axle are moved by means of a movement of the wheel that has a component in the radial direction of the wheel axle, inserted into the two dropouts. Then the wheel axle is attached by turning the two screws, the wheel axle aligning itself so that the wheel is just attached to the bicycle frame. This can prevent the wheel from dragging on a brake of the bicycle belonging to the wheel. Because the wheel axle is attached to the wheel, it is also advantageously not necessary to provide the wheel axle in one piece.
  • the wheel axle preferably has two sub-axles which are arranged at a distance from one another.
  • One of the two points Partial axles one axial end of the wheel axle, which is arranged in one of the dropouts, and the other of the two partial axles on the other axial end of the wheel axle, which is arranged in the other of the dropouts.
  • the two partial axles can be connected to one another, for example, by means of a hub housing.
  • the installation space between the two partial axes can be used for other purposes. This is relevant, for example, if the wheel belonging to the wheel axle has an electric motor.
  • the electric motor can utilize the space between the two partial axes.
  • a gear of the electric motor in particular a planetary gear, can be arranged in the installation space between the two partial axes.
  • the wheel suspension preferably has an anti-rotation lock for each of the frame ends, which is arranged in the dropout so that it cannot rotate and has an anti-rotation through-hole in which the wheel axle is rotated and in particular is arranged in a form-fitting manner.
  • the rotation lock can be used to prevent the wheel axle from rotating while riding a bicycle.
  • the wheel can be attached to the bicycle frame section by first placing the two anti-rotation locks on the two axial ends of the wheel axle. Then the impeller with the wheel axle and the anti-rotation locks, as previously described, are inserted into the two dropouts, whereby the anti-rotation locks are arranged in the dropouts. The wheel axle is then attached to the bicycle frame section by turning the two screws.
  • the wheel axle has a straight wheel axle section at its two axial ends in a cross section perpendicular to the axial direction on its radial outer side and the anti-rotation lock has a straight anti-rotation lock section on its radial inner side in the cross section, which corresponds to the straight Wheel axle section is arranged facing. It is thus possible to arrange the wheel axle with a predetermined angle of rotation relative to the bicycle frame section.
  • the wheel axle has a stop for each of the anti-rotation locks, which is set up to fix the axial position of the anti-rotation lock on the wheel axle.
  • the wheel axle has a wheel axle cavity and a wheel axle through hole, which is introduced into a surface of the wheel axle which is on the outside in the radial direction of the wheel axle and communicates with the wheel axle cavity, electrical wiring of the bicycle being arranged in the wheel axle cavity and via the wheel axle through hole to is guided outside the wheel axle.
  • the wheel shaft through-hole can be provided with a predetermined position in the circumferential direction. In this way, the wiring can also be led out of the wheel axle cavity at the predetermined position.
  • the screw has a screw shaft, a screw groove oriented in the circumferential direction of the screw, which is arranged in the screw shaft, and a locking ring which is arranged in the screw groove and protrudes radially outward from the screw shaft, and the sleeve has a radial one has inwardly protruding sleeve projection which is set up to contact the locking ring when the screw is moved in the axial direction away from the wheel axle, wherein in an extreme position of the screw in which the screw cannot be screwed further into the wheel axle, an axial one The distance from the blocking ring to the sleeve projection is longer than an extension oriented in the axial direction along which the screw thread engages with the internal thread.
  • the screw is advantageously prevented from falling out of the sleeve when the wheel is attached to the bicycle frame section or is removed from the bicycle frame. This allows the wheel to be easily attached to the bicycle frame section or removed from the bicycle frame section. It is thus possible, for example, to grasp the sleeve and the screw together with only one single hand and to insert them together into the through hole or to remove them from the through hole. It is conceivable that the sleeve projection extends along the entire inner circumference of the sleeve.
  • the axial distance from the blocking ring to the sleeve projection is longer than the extension oriented in the axial direction along which the screw thread engages the internal thread, it is advantageously prevented that the blocking ring hits the sleeve projection before the screw is completely out of the internal thread is unscrewed.
  • the sleeve projection has a first flank, which is arranged facing the wheel axis and whose normal is oriented in the axial direction, and a second flank, which is arranged facing away from the first flank and an angle of 10 ° with the first flank includes up to 80 °.
  • the angle is very particularly preferably from 30 ° to 60 °.
  • the sleeve preferably has a sleeve head which projects radially outward from the remaining sleeve and abuts a surface of the wall facing away from the dropout. This advantageously defines the position of the sleeve in the axial direction.
  • the screw has a screw head and the sleeve head has a sleeve head recess in which the screw head can at least partially be countersunk.
  • the screw head can be completely countersunk in the sleeve head recess.
  • the sleeve has on its radial outer side a sleeve groove oriented in the circumferential direction of the sleeve and a sealing ring which is arranged in the sleeve groove.
  • the sleeve groove can extend along the entire outer circumference of the sleeve.
  • the sleeve preferably has a first sleeve surface, which is that surface of the sleeve which is arranged in the through hole and contacts the bicycle frame section, the first sleeve surface being formed by one or more circular cylindrical surfaces.
  • the first sleeve surface can be formed by only one circular cylinder surface.
  • the first sleeve surface can be formed by a plurality of circular cylinder surfaces.
  • one of the circular cylinder surfaces can adjoin one of the two axial sides of the sleeve groove.
  • the sleeve can preferably have a second sleeve surface which directly adjoins the first sleeve surface and is that surface of the sleeve which is arranged outside the through hole and which Bicycle frame portion contacted, wherein the normal of the second sleeve surface is parallel to the axial direction of the wheel axis.
  • the second sleeve surface can be formed by the sleeve head.
  • the dropout is preferably open at the top.
  • the term “above” refers to the bicycle when it is riding on a horizontal surface. This makes it particularly easy to attach the wheel to the bicycle frame section by simply dropping it from above into the dropout.
  • the dropout open at the top is suitable If the bicycle has a mudguard, it is necessary to dismantle it in order to attach the wheel to the bicycle frame section or to remove it from the bicycle frame section. Alternatively, it is conceivable that the dropout is horizontally open or is open at the bottom.
  • the terms “horizontal” and “below” also refer to the bicycle when it is riding on a horizontal surface.
  • the bicycle according to the invention has a bicycle frame, which has the bicycle frame section, and a hub, which has the wheel axle.
  • the hub particularly preferably has an electric motor.
  • the hub of a bicycle according to the invention has a wheel axle which has an internal thread at each of its two axial ends.
  • the wheel axle preferably has two sub-axles which are arranged at a distance from one another.
  • One of the two partial axles can have one axial end of the wheel axle which is arranged in one of the dropouts, and the other of the two partial axles can have the other axial end of the wheel axle which is arranged in the other of the dropouts.
  • the two partial axles can be connected to one another by means of a hub housing.
  • the installation space between the two partial axes can be used for other purposes. This is for example relevant if the wheel belonging to the wheel axle has an electric motor.
  • the electric motor can utilize the space between the two partial axes.
  • a gear in particular a planetary gear, can be arranged in the installation space between the two partial axes.
  • the hub preferably has an electric motor.
  • the hub has an anti-rotation device for each of the axial ends that have a
  • the wheel axle has a straight wheel axle section at its two axial ends in a cross section perpendicular to the axial direction on its radial outer side and the anti-rotation lock has a straight anti-rotation lock section on its radial inner side in the cross section, which is arranged facing the straight wheel axle section .
  • the wheel axle preferably has a wheel axle cavity and a wheel axle through hole which is made in a surface of the wheel axle that is on the outside in the radial direction of the wheel axle and communicates with the wheel axle cavity, electrical cabling of the bicycle being arranged in the wheel axle cavity and to the outside of the wheel axle via the wheel axle through hole is led.
  • the bicycle frame section according to the invention has a first frame end and a second frame end, each having a dropout and each having a wall that axially delimits the dropout and has a through hole that communicates with the dropout.
  • the two dropouts can be arranged in alignment in a direction perpendicular to a direction of travel of a bicycle, the bicycle having the bicycle frame section.
  • the bicycle frame section preferably has a sleeve for each of the frame ends that are concentric with the Through hole is positively arranged in the through hole.
  • the bicycle frame section preferably has one screw for each of the frame ends, which screw is arranged concentrically with the sleeve and extends through the sleeve in a form-fitting manner.
  • the screw has a screw shaft, a screw groove oriented in the circumferential direction of the screw, which is arranged in the screw shaft, and a locking ring which is arranged in the screw groove and protrudes radially outward from the screw shaft, and the sleeve has a radial one has inwardly protruding sleeve projection which is adapted to contact the locking ring when the screw is moved in the axial direction away from the dropout.
  • the sleeve projection has a first flank, which is arranged facing the wheel axle and whose normal is oriented in the axial direction, and a second flank, which is arranged facing away from the first flank and an angle of 10 ° with the first flank to 80 °, in particular an angle of 30 ° to 60 °.
  • the sleeve preferably has a sleeve head which protrudes radially outward from the remaining sleeve and abuts a surface of the wall facing away from the dropout. It is preferred that the screw has a screw head and the sleeve head has a sleeve head recess in which the screw head can be at least partially countersunk. In particular, the screw head can be completely countersunk in the sleeve head recess.
  • the sleeve has on its radial outer side a sleeve groove oriented in the circumferential direction of the sleeve and a sealing ring which is arranged in the sleeve groove.
  • the sleeve preferably has a first sleeve surface, which is that surface of the sleeve which is arranged in the through hole and contacts the bicycle frame section, wherein the first sleeve surface is formed by one or more circular cylindrical surfaces.
  • the first sleeve surface can be formed by only one circular cylinder surface.
  • the first sleeve surface can be formed by a plurality of circular cylinder surfaces.
  • one of the circular cylinder surfaces can adjoin one of the two axial sides of the sleeve groove.
  • the sleeve can preferably have a second sleeve surface which is directly adjacent to the first sleeve surface and is that surface of the sleeve which is arranged outside the through hole and contacts the bicycle frame section, the normal of the second sleeve surface being parallel to the axial direction of the wheel axis.
  • the second sleeve surface can be formed by the sleeve head.
  • the dropout is preferably open at the top.
  • top refers to the bicycle having the dropout when it is riding on a horizontal surface.
  • the dropout is horizontally open or open at the bottom.
  • horizontal and bottom relate here also on the bicycle if it is riding on a horizontal surface.
  • FIG. 1 shows a longitudinal section through part of a wheel suspension according to the invention.
  • FIG. 2 shows the section C-C drawn in FIG.
  • FIG. 3 shows the section D-D drawn in FIG.
  • FIG. 4 shows the detail A drawn in FIG.
  • FIG. 5 shows a larger section of the wheel suspension than FIG. 1.
  • FIG. 6 shows a longitudinal section through a hub and the wheel suspension.
  • the wheel suspension 1 according to the invention for a bicycle has a wheel axle 2 and a bicycle frame section 4 of the bicycle, the bicycle frame section 4 having a first frame end 27 and a second frame end 28.
  • the wheel suspension 1 has a sleeve 5 for each of the frame ends 27, 28 and a screw 3 for each of the frame ends 27, 28.
  • the first frame end 27 and the second frame end 28 each have a dropout 6 in each of which one of the axial ends of the wheel axle 2 is arranged, and each have a wall 23 which delimits the dropout 6 in the axial direction 33 of the wheel axle 2 and a through hole 24 which communicates with the dropout 6.
  • the wheel axle 2 has an internal thread at each of its two axial ends.
  • the respective sleeve 5 is arranged concentrically with the associated through hole 24 and in a form-fitting manner in the associated through hole 24.
  • the respective screw 3 is arranged concentrically with the associated sleeve 5 and extends positively through the associated sleeve 5 and via the associated axial end into the wheel axle 2, the screw thread 13 of the screw 3 engaging the internal thread. It is conceivable that the screw 3 does not contact the bicycle frame section 4 anywhere, as is also shown in FIG. 1, for example. It can be seen from FIG. 3 that the through hole 24 can be delimited by the wall 23 along its entire circumference.
  • the through hole 24 in a cross section which is arranged perpendicular to the axial direction 33 and runs through an end of the wall 23 facing the wheel axle 2 has a smaller cross section than the wheel axle 2 in a cross section which is perpendicular to the axial direction 33 is arranged and extends through an end of the wheel axle 2 facing the wall 23. This can prevent the wheel axle 2 from getting into the through hole 24.
  • the internal thread is arranged concentrically in the wheel axle 2.
  • the sleeve 5 can, for example, comprise or consist of aluminum, steel and / or stainless steel.
  • the bicycle frame section 4 is understood to mean a partial area of a bicycle frame of the bicycle, the bicycle frame also being understood to mean the actual bicycle frame but also a front fork of the bicycle which is set up to hold the front wheel of the bicycle.
  • the bicycle frame section 4 can be, for example, a front fork of the bicycle which is configured to hold the front wheel of the bicycle, or a rear fork of the bicycle which is configured to hold the rear wheel of the bicycle.
  • the rear fork may have chain stays and seat stays of the bicycle.
  • the bicycle frame section can also be two connecting pieces of the bicycle, each of the connecting pieces connecting one of the chain stays of the bicycle and one of the seat stays of the bicycle to one another.
  • the dropout 6 is understood to be an area delimited by the bicycle frame in the radial direction of the wheel axle and free from the bicycle frame, in which the wheel axle 2 is to be inserted for fastening a wheel of the bicycle to the bicycle frame section 4. It is conceivable that the impeller is attached to the wheel axle 2, both when the impeller is on is attached to the bicycle frame section 4 as well as when the wheel is not attached to the bicycle frame section 4.
  • Figures 1 and 2 show that the wheel suspension 1 can each have an anti-rotation device 7 for each of the frame ends 27, 28.
  • the anti-rotation device 7 is arranged in a twisted manner in the dropout 6 and has a
  • Anti-rotation through hole 26 is arranged.
  • the first frame end 27 and the second frame end 28 can each have a first straight frame flank 35 and a second straight frame flank 36, which are arranged parallel to one another and delimit the dropout 6 in a direction transverse to the axial direction 33 .
  • the anti-rotation lock 7 can have a first straight anti-rotation lock edge 37 and a second straight anti-rotation lock edge 38, which are arranged parallel to one another and whose distance is essentially the same as the distance from the first straight one Frame flank 35 corresponds to the second straight frame flank 36.
  • the anti-rotation device 7 is thus longitudinally displaceable in the dropout 6, but the anti-rotation device 7 cannot be rotated in the dropout 6.
  • the wheel axle 2 can have a stop for each of the anti-rotation locks 7, which stop is set up to fix the axial position of the anti-rotation lock 7 on the wheel axle 2.
  • the stop is formed in that the wheel axle 2 has a smaller cross-section at its axial end than in a region of the wheel axle that is spaced from the axial end.
  • the stop is arranged at a distance from the dropout 6.
  • the anti-rotation device 7 acts over an axial area that is longer than the axial extent of the Dropout 6 is.
  • FIG. 1 shows that the anti-rotation device 7 can be arranged on its side facing away from the wall 23, radially outwardly aligned with the first frame end 27 or with the second frame end 28 and can thicken radially inward.
  • the wheel axle 2 can have a straight wheel axle section 39 on its two axial ends in a cross section perpendicular to the axial direction 33 on its radial outer side and the anti-rotation lock 7 can have a straight anti-rotation lock portion 40 on its radial inner side in the cross section have, which is arranged facing the straight wheel axle section 39. It is also conceivable that the remaining wheel axle section and the remaining wheel axle section.
  • Anti-rotation section in the cross section perpendicular to the axial direction 33 each have the shape of a circular arc.
  • FIGS. 1 and 3 show that the screw 3 can have a screw shank 22, a screw groove 8 oriented in the circumferential direction of the screw 3 and extending along the entire circumference of the screw 3, which is arranged in the screw shank 22, and a blocking ring 9.
  • the blocking ring 9 is arranged in the screw groove 8 and projects radially outward from the screw shaft 22.
  • the sleeve 5 can have a radially inwardly protruding sleeve projection 10 which is set up to contact the blocking ring 9 when the screw 3 is moved away from the wheel axle 2 in the axial direction 33.
  • an axial distance from the blocking ring 9 to the sleeve projection 10 is longer than an extension oriented in the axial direction 33 along which the screw thread 13 is connected the internal thread engages. It is conceivable that the sleeve projection 10 extends along the entire inner circumference of the sleeve 5.
  • the blocking ring 9 can, for example, comprise or consist of spring steel.
  • Figures 1 and 4 show that the sleeve projection 10 can have a first flank 15, which is arranged facing the wheel axle 2 and whose normal is oriented in the axial direction 33, and a second flank 16, which is arranged facing away from the first flank 15 and with the first flank 15 encloses an angle of 10 ° to 80 °, in particular an angle of 30 ° to 60 °.
  • the second flank 16 has the shape of a jacket of a truncated cone.
  • the sleeve projection 10 has an annular surface 17 which is arranged in the axial direction 33 between the first flank 15 and the second flank 16 and is the most inwardly protruding surface of the sleeve projection 10 and in particular of the sleeve 5.
  • the sleeve 5 can have a sleeve head 5 a, which protrudes radially outward from the remaining sleeve 5 and strikes a surface of the wall 23 facing away from the dropout 6.
  • the screw 3 has a screw head 14 and the sleeve head 5a has a sleeve head recess 34 in which the screw head 14 can be at least partially sunk and in particular completely sunk.
  • the sleeve head recess 34 can be larger in a cross section perpendicular to the axial direction 33 than the sleeve through hole 25 in a cross section which is arranged perpendicular to the axial direction 33 and on the end of the sleeve 5 facing the wheel axle 2.
  • the screw 3 can be, for example, a hexagon socket screw or a Torx screw.
  • the second flank 16 of the sleeve projection 10 extends as far as the sleeve head recess 34. It is also conceivable that the second flank 16 extends further radially outward than the first flank 15.
  • the screw shaft 22 in the axial direction 33 between the screw thread 13 and the screw head 14 can be arranged.
  • FIG. 1 shows that the radial outside of the sleeve 5 can have a sleeve groove 11 oriented in the circumferential direction of the sleeve 5 and a sealing ring 12 which is arranged in the sleeve groove 11.
  • the sleeve groove extends along the entire outer circumference of the sleeve 5.
  • the sealing ring 12 is flexible and, in an unloaded state, is thicker than the extent of the sleeve groove 11 in the radial direction of the wheel axle 2.
  • the sleeve 5 can thus be fastened to the bicycle frame section 4 by means of the sealing ring 12.
  • the sealing ring 12 can, for example, comprise and / or consist of PTFE, polyoxymethylene, hydrolysis-resistant polyurethane (HPU), polyurethane, silicone and / or polyamide.
  • the sleeve 5 can have a first sleeve surface 41, which is that surface of the sleeve 5 which is arranged in the through hole 24 and contacts the bicycle frame section 4, the first sleeve surface 41 being one or more
  • Circular cylindrical surfaces is formed.
  • the first sleeve surface 41 can be formed by only a circular cylinder surface.
  • the first sleeve surface 41 can be formed by several circular cylindrical surfaces.
  • one of the circular cylinder surfaces can adjoin one of the two axial sides of the sleeve groove 11.
  • the sleeve 5 can also have a second sleeve surface 42 which directly adjoins the first sleeve surface 41 and is that surface of the sleeve 5 which is arranged outside the through hole 24 and contacts the bicycle frame section 4, the normal of the second sleeve surface 42 being parallel to the Axial direction of the wheel axle 2 is.
  • the dropout 6 is open at the top.
  • the term “above” refers to the bicycle having the dropout 6 when it is riding on a horizontal surface. It is conceivable that the dropout 6 is open at an angle, as shown in FIG. 2. Alternatively, it is also conceivable that the dropout 6 is open vertically at the top. Alternatively, it is conceivable that the dropout is horizontally open or open at the bottom.
  • the terms “horizontal” and “bottom” also refer to the bicycle when it is riding on a horizontal surface If the dropout is open at the bottom, it is conceivable that the dropout is open at an angle downwards or vertically downwards.
  • FIG. 5 shows a larger section of the wheel suspension
  • the wheel axle 2 can have a wheel axle cavity 18 and a wheel axle through hole 19.
  • the wheel axle cavity 18 is arranged inside the wheel axle 2 and the wheel axle through hole 19 is made in a surface of the wheel axle 2 which is on the outside in the radial direction of the wheel axle 2 and communicates with the wheel axle cavity 18.
  • Electrical wiring of the bicycle can be arranged in the wheel axle cavity 18 and is via the wheel axle through hole 19 to the outside of the wheel axle
  • a hub 29 in which the wheel axle 2 is arranged, and the wheel suspension 1 is shown.
  • the hub 29 can have a hub shell 20.
  • the hub 29 can have several bearings 21, by means of which the hub housing 20 is rotatably supported with respect to the wheel axle 2.
  • the hub shell 20 has two spoke flanges 32, which are provided for suspending the spokes of the wheel.
  • the wheel axle 2 can have two partial axles which are arranged at a distance from one another. One of the two partial axles has one axial end of the wheel axle 2, which is arranged in one of the dropouts 6, and the other of the two partial axles has the other axial end of the wheel axle 2, which is arranged in the other of the dropouts 6.
  • the two partial axles can be connected to one another by means of the hub housing 20.
  • the installation space between the two partial axes can be used for other purposes. This is relevant, for example, if the wheel belonging to the wheel axle 2 has an electric motor.
  • the electric motor can utilize the space between the two partial axes.
  • a gear in particular a planetary gear, can be arranged in the installation space between the two partial axes.
  • the diameter of the through hole 24 of the first frame end 27 can be of the same length as the diameter of the through hole 24 of the second frame end 28.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)

Abstract

La présente invention concerne une suspension de roue pour une bicyclette, ladite suspension comprenant : un axe de roue (2) qui présente, sur ses deux extrémités un filetage interne ; une section de cadre de bicyclette (4) dotée d'une première extrémité de cadre (27) et d'une seconde extrémité de cadre (28) qui présentent chacune un renfoncement (6) dans lequel chacune des extrémités axiales est disposée et une paroi (23) qui délimite le renfoncement (6) dans la direction axiale (33) de l'axe de roue (2) et présente un orifice traversant (24) qui communique avec le renfoncement (6) ; un manchon (5) pour chacune des extrémités de cadre (27, 28), ledit manchon étant disposé de manière concentrique par complémentarité de forme avec l'orifice traversant (24) dans l'orifice traversant (24) ; et une vis (3) pour chacune des extrémités de cadre (27, 28), ladite vis étant disposée de manière concentrique avec le manchon (5) et s'étendant par ajustement mutuel au travers du manchon (5) et passant par l'extrémité axiale dans l'axe de roue (2), le filetage de vis (13) de ladite vis (3) venant en prise avec le filetage interne.
EP20754750.6A 2019-08-14 2020-08-11 Suspension de roue pour une bicyclette Withdrawn EP4013670A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019121855.1A DE102019121855B4 (de) 2019-08-14 2019-08-14 Laufradaufhängung für ein Fahrrad
PCT/EP2020/072538 WO2021028444A1 (fr) 2019-08-14 2020-08-11 Suspension de roue pour une bicyclette

Publications (1)

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EP4013670A1 true EP4013670A1 (fr) 2022-06-22

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EP20754750.6A Withdrawn EP4013670A1 (fr) 2019-08-14 2020-08-11 Suspension de roue pour une bicyclette

Country Status (6)

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US (1) US20220297789A1 (fr)
EP (1) EP4013670A1 (fr)
CA (1) CA3149144A1 (fr)
DE (1) DE102019121855B4 (fr)
TW (1) TW202106557A (fr)
WO (1) WO2021028444A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022103627B4 (de) * 2022-02-16 2024-05-16 Porsche Ebike Performance Gmbh Antriebsvorrichtung für ein Elektrofahrrad und Elektrofahrrad

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009008246U1 (de) * 2009-06-16 2009-10-01 Forstmann, Jochen Optimierte Struktur einer Achsbaugruppe für eine Fahrradhinterradnabe
JP5149938B2 (ja) * 2010-06-11 2013-02-20 株式会社シマノ モータ内蔵自転車用ハブ
US9010792B2 (en) * 2012-03-16 2015-04-21 Specialized Bicycle Components, Inc. Torque element for a motor-driven bicycle
ITUB20152421A1 (it) * 2015-07-23 2017-01-23 Zehus S P A Dispositivo per la movimentazione assistita di una bicicletta a pedalata assistita, provvisto di mezzi per l’accoppiamento con il telaio di detta bicicletta
DE102017007362A1 (de) * 2016-08-09 2018-02-15 Marquardt Verwaltungs-Gmbh Elektromotor, insbesondere für Fahrzeug
DE202019100002U1 (de) * 2019-01-02 2019-01-14 Ridea Group Limited Verschraubungsanordnung für die Montage von Fahrradnaben

Also Published As

Publication number Publication date
WO2021028444A1 (fr) 2021-02-18
US20220297789A1 (en) 2022-09-22
CA3149144A1 (fr) 2021-02-18
DE102019121855A1 (de) 2021-02-18
DE102019121855B4 (de) 2021-12-02
TW202106557A (zh) 2021-02-16

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