WO2012025782A1 - Roue libre sans encliquetage - Google Patents

Roue libre sans encliquetage Download PDF

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Publication number
WO2012025782A1
WO2012025782A1 PCT/IB2010/053781 IB2010053781W WO2012025782A1 WO 2012025782 A1 WO2012025782 A1 WO 2012025782A1 IB 2010053781 W IB2010053781 W IB 2010053781W WO 2012025782 A1 WO2012025782 A1 WO 2012025782A1
Authority
WO
WIPO (PCT)
Prior art keywords
clamping
freewheel
ring
clamping pieces
freewheel device
Prior art date
Application number
PCT/IB2010/053781
Other languages
German (de)
English (en)
Inventor
Rudi Hoebel
Original Assignee
Clean Mobile 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 Clean Mobile Ag filed Critical Clean Mobile Ag
Priority to PCT/IB2010/053781 priority Critical patent/WO2012025782A1/fr
Priority to PCT/IB2011/053692 priority patent/WO2012025876A2/fr
Publication of WO2012025782A1 publication Critical patent/WO2012025782A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
    • F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
    • F16D43/18—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members with friction clutching members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D15/00—Clutches with wedging balls or rollers or with other wedgeable separate clutching members

Definitions

  • a freewheel In a freewheel, power is transmitted from a force axis to a load axis substantially only in a transmission direction. Especially in vehicles with an exclusive or additional pedal drive, the power transmission of the freewheel is usually from an inner to an outer axis.
  • freewheels with ratchets are commonly used, with the detents being designed as pawls or toothed disks.
  • so-called “noiseless” freewheels are also used which have clamping rollers or clamping bodies. It is an object of the application to provide an improved detent freewheel.
  • the present application discloses a freewheel device which has an inner ring which is mounted on a drive shaft of a vehicle which drives the freewheel device .
  • On the outside of the inner ring one or meh ⁇ eral circulating elements are provided. These circulation elements may be provided as a fixed wedges lying on the drive shaft or on the inner ring, as well as movable rollers or balls which are incorporated ⁇ placed in a pocket of the inner ring. The rollers or balls can in turn be mounted on one axis.
  • the freewheel device has an outer ring, which surrounds the inner ring, and a freewheel body or a freewheel ring, which is arranged in the intermediate space between the inner ring and the outer ring, wherein the freewheel body a plurality of, preferably identical, having movable clamping pieces, which are formed in a rotation of the inner ring in each case against an elastic spring force radially outward.
  • a spring element is provided to generate the elastic spring force. The clamping pieces can be acted upon by the circulation elements with a radially outwardly acting force.
  • the spring element in particular a closed circumferential ring through which the clamping pieces are held.
  • the closed umlau ⁇ fende ring according to the application can be realized in various ways.
  • the closed circumferential ring of the spring element is designed as elasti ⁇ shear ring and the clamping pieces have further ⁇ toward an area for receiving the elastic ring, which may be formed as a groove with a semicircular profile extending on the outer sides the clamping pieces is located.
  • the closed circumferential ring of the spring device is designed as a cylinder, wherein the spring device further comprises elastic plates which are provided on the circumference of the cylinder.
  • the clamping pieces are provided on the elastic plates ⁇ see.
  • the cylinder can rest in particular on the drive shaft so that it is supported by the drive shaft from ⁇ .
  • a tension of the elastic plates increases from a lifted or fully released position of the freewheel body to a clamping position of the freewheel body towards.
  • a movement of the clamping pieces from the lifted to the clamping position against the spring force of elastic plates With the lifted position in particular the rest position is meant, in which a gap between the clamping pieces and the outer ring of the freewheel is present, so that the clamping pieces have no contact with the outer ring.
  • the freewheel device can in particular be constructed symmetrically ⁇ , wherein the number of rotary wedge coincides with the number of clamping pieces.
  • the freewheel device on clamping segments, on which the clamping pieces are provided, wherein the clamping segments each having a flat support region with the clamping segments rest in the assembled state of the freewheel device each on one of the wedge.
  • the above-mentioned radial movement of the clamping pieces includes a translational movement of the clamping pieces.
  • This ⁇ be indicated in particular that the movement of the clamping pieces, to ⁇ DERS than a freewheel with rotatably arranged clamping parts, is not a pure rotation.
  • Advantages of this arrangement according to the invention are low space consumption by the translational movement of the clamping pieces and the union ⁇ enables a large contact surface of the clamping pieces with the in ⁇ nenwand the outer ring.
  • the clamping pieces each have a substantially wedge-shaped clamping region, wherein the clamping regions of the clamping pieces are adapted to the ra ⁇ dial inwardly facing side of the shape of the rotary wedge and on the radially outwardly facing side to the shape of the inner wall are adapted to the outer ring.
  • the adapted shaping of the clamping pieces and the rotary wedges can in particular be such that the Klemmstü ⁇ bridge are wedge-shaped widened in the direction of a drive sense, whereas the wraparound wedge on the inner ring against the drive sense widened.
  • the inside of the clamping pieces is adapted to the rotary wedges so that a movement of the rotary wedge along the inside of the clamping pieces is made possible, the rotary wedge with the inside of the clamping pieces are in contact.
  • the clamping pieces are shaped so that the clamping areas are curved, so that there is a sickle shape of the clamping pieces.
  • the mating shape of the clamping pieces and the inside of the outer ring can be made so that the clamping pieces are in a clamping position surface in contact with the inside of the outer ring. Furthermore, the surfaces of the clamping pieces and / or the outer ring can be roughened. In addition, a perforation may be provided on the outside of the clamping body and / or on the inner wall of the outer ring, so that the clamping body can engage in the inner wall of the outer ring.
  • peripheral wedges and the inner wall of the outer ring are shaped so that in a locked state or in a clamping position of the freewheel device results in a self-locking connection between the inner ring and outer ring.
  • a double-acting freewheel which has a first clamping position in one Having the first drive direction and a second clamping position in a second drive direction opposite thereto.
  • the peripheral wedges and the inner wall of the outer ring are shaped so that in the first locked state of the freewheel device results in a self-locking connection between the inner ring, a first subset of the clamping pieces and the outer ring.
  • each second of the clamping pieces is engaged with the outer ring.
  • a second locked state results in a self-locking connection between the inner ring, a second subset of the clamping pieces and the outer ring results.
  • the clamping pieces are engaged, which are lifted in the first locked state from the outer ring and vice versa.
  • the first Klemmstel ⁇ ment provides a drive in a first drive direction available and the second clamping position provides a drive in a second drive direction available.
  • the outer ring is connected to an output shaft, which is arranged concentrically to the drive shaft and which surrounds the drive shaft at least partially.
  • a driven ⁇ medium is attached, such as a chainring or a rim flange.
  • the output shaft may be connected to a further drive, for example via a wide ⁇ ren freewheel.
  • the output shaft may be formed so that it is guided around an inner ring of the further freewheel, so that is also in the further freewheel, the inner ring within an outer ring, wherein the outer ring is formed as part of the output shaft.
  • the chamfered section can be used to support clamping in a clamping position.
  • the outer ring of the freewheel body can continue to the output side having a circular recess for accommodating a Abtriebsla ⁇ gers. As a result, the lateral space is used optimally and at the same time allows a large radius of the output bearing.
  • the Freilaufein ⁇ direction in which the number of movable clamping pieces is four.
  • the clamping pieces can on one hand be made large ge ⁇ nug, with enough space on the inner side of the clamping pieces ⁇ exists to allow engagement of the chocks.
  • the clamping pieces have more freedom of movement than, for example, in an arrangement with only two clamping pieces, so that tilting of the clamping pieces is avoided.
  • the application also includes free ⁇ running devices in which the number of clamping pieces 2, 3, 5 or more. Conveniently agrees according to the on ⁇ message, the number of movable clamping pieces with the number of rotary wedge.
  • the application discloses a transmission with a freewheel device and a bicycle with a freewheel device, wherein the drive shaft is designed as a crankshaft, are provided at the areas for receiving pedal cranks and wherein on the output axis, a region for receiving a driven means is provided.
  • an output gear may be provided on the output shaft.
  • the drive shaft on which the freewheel is mounted according to the application can also be formed as output shaft of an engine from ⁇ or it can be provided a second drive shaft on which a freewheel is mounted according to the application.
  • the application further discloses an electrically operated vehicle with a freewheel device, in which the drive shaft is designed as a crankshaft, are provided at the areas for receiving pedal cranks and wherein the Ab ⁇ drive axle - optionally via a further freewheel - is connected to an electric motor.
  • FIG. 1 shows a freewheel unit with a freewheel according to a first embodiment
  • Figure 2 shows the freewheel of Fig. 1 in a lifted
  • Figure 3 shows the freewheel of Fig. 1 in a Klemmstel ⁇ ment ,.
  • Figure 4 shows a freewheel according to a second embodiment in a raised position
  • Figure 5 shows the freewheel of FIG. 4 in a clamping Stel ⁇ lung
  • Figure 6 shows a further embodiment of a free ⁇ run according to the application
  • FIG. 7 shows an exemplary embodiment of a freewheel with two clamping positions according to the application in a first clamping position
  • FIG. 8 shows the embodiment of FIG. 7 in an off position
  • FIG. 9 shows the exemplary embodiment of FIG. 7 in a second clamping position
  • Figure 10 shows another embodiment of a free ⁇ run with two clamping positions according to the application.
  • Figure 11 shows a transmission of an electric bicycle with two
  • FIG. 1 shows an exploded view of a freewheel unit 10 with a freewheel 11 according to the application.
  • the free ⁇ running unit 10 includes, seen from left to right, a crankshaft 13, a freewheeling ring 15, an output bearing 17 and an output shaft 20 having mounted thereon Au ⁇ texring 19.
  • An arrow 22 indicates a drive sense of the freewheel unit.
  • a rotation axis 23 is hinted ⁇ tet.
  • On the circumference of the crankshaft 13, an inner ring 21 is pre ⁇ see.
  • four rotary wedges are provided, of which two rotary wedges are shown in Fig. 1. The wraps each occupy a quarter of the circumference of the inner ring.
  • Each of the rotary wedges has a curved outer surface 24, followed by a step consisting of a chamfered portion 25 and a vertical portion 26.
  • the width of the rotary wedge increases in each case along the curved surface 24 in the opposite direction to the drive sense 22.
  • the freewheel ring 15 includes four identical clamping segments 28, 29, 30, 31.
  • the Klemmseg- elements 28, 29, 30, 31 each have a wedge-shaped clamping ⁇ piece 32 which is mounted on a planar support portion 33, the planar support portion is aligned 33 in a plane perpendicular to the rotational axis 23rd
  • the wedge-shaped clamping piece 32 includes an outer side in the form of a rotational body segment and an inner surface whose distance from the outside of the clamping piece increases in the direction of at ⁇ operating direction 22 32 so that the clamping element 32 counter to the driving direction 22 of wedge-shaped tapering. Lateral walls connect the insides and outsides of each
  • Clamping segments 28, 29, 30, 31 The lateral walls of the clamping ⁇ segments 28, 29, 30, 31 are shaped so that between the clamping segments, a gap 34 which widens wedge-shaped towards the outside.
  • a semi-circular groove 35 is each ⁇ wells recessed in which an elasti ⁇ shear ring is provided 36th
  • the elastic ring 36 is preferably formed as a closed annular spring.
  • the flat bearing areas 33 of the clamping segments 28, 29, 30, 31 are each bounded by an inner circumference, whose radius is greater than the radius of the crankshaft 13.
  • the rotary wedge located on the crankshaft 13 are on the flat support portions 33 of the clamping segments 28, 29, 30, 31 of the freewheel 15, so that the freewheel ring 15 is held laterally from the side of the inner ring 21 forth by the wraps.
  • the outer ring 19, which is mounted on the drive-side end of the output shaft 20, comprises the freewheel ring radi ⁇ al and the output side.
  • the output shaft 20 is formed as a hollow shaft, the output shaft of the crankshaft includes.
  • a circular Ver ⁇ recess 37 is recessed, in which the output bearing 17 is located.
  • a hexagonal section 38 is provided for mounting a driven means such as a pinion or a gear.
  • drive side refers to the side of the inner ring 21 and “output side” on the side of the hexagonal portion 38 and the side of the output means not shown here.
  • Fig. 2 shows a section through the free wheel 11 in an off lifted condition in which a gap between the clamping pieces 32 of the clamping segments 28, 29, 30, 31 and the outer ring 19 is in front ⁇ hands.
  • the sectional plane is in Fig. 2 and Fig. 3 senk ⁇ right to the axis 23 and immediately before the freewheel ring 15 on the drive side.
  • all four peripheral wedges 42, 43, 44, 45 can be seen.
  • crankshaft 13 If the crankshaft 13 is rotated in the drive direction 22, then the rotational movement of the crankshaft 13 is transmitted via the wraps 42, 43, 44, 45 to the freewheel ring 15.
  • the result is a centrifugal force, which presses the clamping segments 39, 40, 41, 42 of the freewheel ring 15 against the force of the elastic ring 36 to the outside, so that the gap 46 between the clamping segments 39, 40, 41, 42 and the outer ring 19 of Freewheel 11 closes and the clamping pieces 32 of the clamping segments 39, 40, 41, 42 are in engagement with the outer ring 19.
  • move the wraps 42, 43, 44, 45 relative to the freewheel ring 15 further in the drive direction 22 and press the clamping segments 39, 40, 41, 42 to the outside.
  • the friction surfaces of the clamping body are lifted from the outer ring at idle, so the friction losses are much lower than, for example, in a ratchet.
  • Unlike the sprag freewheel there are no rotatably grated clamping body required.
  • This design is particularly simple and robust and also offers a smooth and quiet operation.
  • When the crankshaft is moved by the pedals there may be intermittent friction between the outer surfaces of the clamps and the outer ring until the clamping position is relieved by a higher engine speed. This effect may be advantageous for a mixed pedal and engine operation, because that wins a Fah ⁇ rer a better feel for the currently applied engine power and the transition from pedal to motor drive is thus more evenly.
  • the outer surfaces of the clamping body are arranged according to the application parallel to the circumference of the outer ring.
  • the clamping body are in the clamping position on a portion of its outer side on the inside of the outer ring, so that a large contact surface is formed.
  • a freewheel according to the application can take over the function of both devices.
  • the elastic ring may for example be made of rubber, as a hose spring or as a metal band.
  • the elastic ring is inserted in a circular receiving area, which can be located both on the outside of the clamping segments, on the inside of the clamping segments and in an area therebetween.
  • the attachment of the ring on the outside makes a special simple and stable design is. contrast By attaching the elasti ⁇ rule ring on the inside creates a larger contact area on the outside, as no Ril ⁇ le for receiving the elastic ring more is needed on the outside.
  • the output bearing can also be provided elsewhere in the crankshaft.
  • the arrangement of the output bearing within the outer ring with respect to an arrangement within the output shaft is advantageous because the output bearing can then be executed grö ⁇ ßer.
  • the output bearing is also held laterally, so that no separate lateral support of the output bearing is required.
  • such a holder can also be provided in order to improve the lateral stability.
  • an embodiment of the output bearing as a ball or roller bearings offers low friction losses.
  • an oil-lubricated sliding ring can also be used as the output bearing.
  • a method for constructing a freewheel unit is specified.
  • the outer ring 19 is provided with the circular recess 37 and the output shaft 20.
  • the production of the outer ring 19 can take place, for example, by turning or molding.
  • the output bearing 17 is inserted into the circular recess 37.
  • the freewheel ring 15 is assembled by providing the four identical clamping segments 28, 29, 30, 31 and inserting the elastic ring 36 into the semicircular groove 35 of the clamping segments 28, 29, 30, 31.
  • the assembled freewheel ring 15 is also inserted into the circular recess 37.
  • crankshaft 13 is inserted into the freewheel ring 15, the output bearing 17, the outer ring 19 and the output shaft.
  • the freewheel ring 15 and the output bearing 17 can be plugged onto the crankshaft 13 and the crankshaft 13 are introduced together with the freewheel ring 15 and the output bearing 17 in the outer ring 19.
  • Figures 4 and 5 show another embodiment of a non-latching freewheel according to the application, wherein Fig. 4 shows a raised position and Fig. 5 shows a clamping position of the freewheel.
  • the hatching of the inner ring 21 is omitted for reasons of clarity and parts that are located in the direction behind the inner ring 21 are shown in dashed lines.
  • the six clamping segments 50, 51, 52, 53, 54, 55 are attached at regular intervals.
  • the six clamping segments 50, 51, 52, 53, 54, 55 each comprise clamping pieces 32 'which are mounted on elastic mounting plates 56, 57, 58, 59, 60, 61 which project radially from the drive shaft.
  • the six clamping pieces 32 'each have a curved réellesei ⁇ te, in each of which a rotary wedge 63, 64, 65, 66, 67, 68 engages.
  • the rotary wedge 63, 64, 65, 66, 67, 68 are mounted on an inner disc 21 which is provided on a drive shaft.
  • the six clamping elements 32 are each a rümm ⁇ te outer side, which is in the position shown in Fig. 5 clamping Stel ⁇ lung frictionally with an outer ring 19 in connection.
  • the six elastic mounting plates 56, 57, 58, 59, 60, 61 are shaped so that in the clamping position they have a tension that is greater than the tension of the elastic mounting plates 56, 57, 58, 59, 60, 61 in the raised position Position of Fig. 4, in which the elastic fastening plates 56, 57, 58, 59, 60, 61 are lifted from the inner wall of the outer ring 19.
  • the cylinder 70 may also be located at a distance from the output shaft 13.
  • the mounting plates may also have a different curvature than shown in Figures 4 and 5.
  • the mounting plates 56, 57, 58, 59, 60, 61 may also be shaped so that they are flat in the toho ⁇ benen position and curved in the clamping position.
  • the cylinder 70 and the clamping segments 50-55 are made of metal.
  • Fig. 6 shows another embodiment of a freewheel 11 '' according to the application. This embodiment is similarity ⁇ Lich to the embodiment of Figures 1 to 3. compliance tuning elements are not explained separately.
  • the clamping position can be more easily dissolved again, so that the sprags of the inner wall of the outer ring istho ⁇ ben be.
  • a suitable shaping of the inner ring 21 'and the clamping segments 28 - 31 or by a guide o- storage of the circulating rollers can be achieved that the circulation rollers 42' - 45 'are held in the pockets 71 of the inner ring 21' and not from the Bags 71 fall out.
  • FIGS. 7 to 9 show a further embodiment of a detent free freewheel 11 '"according to the application. In the following, those features which differ from the first embodiment of FIGS. 1 to 3 will be described.
  • Klemmsegmen- te 28 ', 29', 30 ', 31' are provided, which are held together by an elastic ring 36.
  • the clamping pieces 32 of the opposite relative to the rotation axis 32 clamping segments 28 'and 30 'shaped so that they run in the opposite direction to a second drive sense 22' wedge-shaped, the second drive sense 22 'the first drive sense 22 is opposite.
  • peripheral wedges 42 ', 43', 44 ', 45' are provided on the inner ring 21 .
  • the peripheral wedges 43 'and 44' which lie opposite one another with respect to the axis of rotation 23, are formed so that the width of the rotary wedges 43 'and 44' increases in each case in the opposite direction to the first drive sense 22.
  • circulation wedges 42 'and 45' that with respect to the axis of rotation 23 opposite one another, designed such that the width of the circulation wedges 42 'and 45' respectively increases in the opposite Rich ⁇ processing for the second drive point 22 '.
  • a freewheel which is effective in two opposite drive directions
  • Such a freewheel which is effective in two drive directions, is particularly advantageous for small vehicles, which have both pedal drive and via a motor and also have a reverse gear.
  • small vehicles are three or ERAL ⁇ nen Obsträdrig and can be used with disabilities, for example to carry loads, as a taxi or for seniors or walking.
  • FIG. 7 a raised position of the freewheel 11 '''is shown, in which the clamping body 32 are lifted from the outer ring 19. This is the case, in particular when the pedals are at a standstill, or when the rotation of the crankshaft 13 falls below a minimum speed.
  • FIG. 8 shows a first clamping position of the freewheel 11 ''', which is achieved when the rotation of the crankshaft 13 in the first drive direction 22 exceeds a minimum rotational speed and the crankshaft 13 in the second drive direction 22 is faster than the outer race 19 turns. In the first clamping position, the clamping pieces 32 of the opposite clamping segments 29 'and 31' with the outer ring 19 are engaged.
  • clamps rest on the outer ring 19 in a clamping position substantially. Furthermore, the outer sides of the clamping pieces 32 are shaped so that in a clamping position of the Freewheel 11 '''on the opposite direction to the respective drive direction 22, 22' a gap 73 remains. As a result, the clamping position can be resolved more easily.
  • the double effective freewheel according to FIG. 7 - 9 is particularly inexpensive and space-saving. An installation of a kostspieli ⁇ gen switchable freewheel can be avoided. Also in the embodiment of FIG. 6, the clamping pieces may be shaped so that they run alternately in a first drive direction ⁇ 22 wedge-shaped and run in a wedge-shaped in a second drive direction opposite thereto 23.
  • a double-acting freewheeling freewheel can also be designed so that a first series of clamping pieces and a first row of peripheral wedges in egg ner first level and a second row of clamping pieces and a second row of wraparound wedges are provided in a second plane in that the first row of clamping pieces tapers in a wedge shape counter to the first drive direction 22 and the second row of clamping pieces tapers in a wedge shape counter to the second drive direction 22 '.
  • pairs of contra-shaped clamping pieces can each be arranged on a common clamping segment or on separate clamping segments.
  • Fig. 11 shows a drive unit 75 of a bicycle with egg nem gear 78, in which two free wheels 76, 77 are installed in accordance with the on ⁇ message.
  • the drive unit 75 includes a Ge ⁇ housing 91, from which a crankshaft is led out 79, on the areas for receiving the pedal cranks 80, 81 see ⁇ provided.
  • the transmission has an electric motor 82, which is connected to an output shaft 83, wherein the output shaft 83 of the electric motor 82 is mounted on a Kugella ⁇ ger 84.
  • the output shaft 83 of the electric motor 82 is mounted on a Kugella ⁇ ger 84.
  • a first freewheel 76 is provided on the output shaft 83 of the engine.
  • An outer ring 85 of the first freewheel 76 is formed as part of a hollow shaft 86 ⁇ , which is arranged concentrically around the output shaft 83 of the motor 82.
  • a driven tooth ⁇ wheel 87 is provided on the hollow shaft 86.
  • the output gear 87 meshes with a two-tes gear 88, which is seen laid on a second hollow shaft 89 ⁇ .
  • the second hollow shaft 89 is arranged concentrically around the crankshaft 79.
  • the second freewheel 77 according to the application is arranged on the crankshaft 79.
  • An outer ⁇ ring 90 of the second one-way clutch 77 is formed as part of the second hollow shaft 89th
  • the second hollow shaft 89 is led out of the housing 91.
  • a third gear 92 for transmitting a Antriebsmo ⁇ ment on a drive chain not shown here on the second hollow shaft 79 is arranged.
  • the gear 78 is designed as a reduction gear in which the first gear 87 has fewer teeth ⁇ than the second gear 88.
  • a chain for torque transmission between the gears may be provided and / or the transmission can have several reduction levels.
  • the output gear 92 is connected to a drive pinion of a drive wheel of a vehicle via a drive output means such as, for example, a chain.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
  • Braking Arrangements (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

L'invention concerne un dispositif à roue libre qui présente une bague intérieure (21) qui est montée sur un arbre d'entraînement (20), le côté extérieur de la bague intérieure étant muni d'un ou de plusieurs éléments périphériques. Le dispositif à roue libre présente en outre une bague extérieure (19) qui entoure la bague intérieure et un corps de roue libre ou une bague de roue libre (15) qui est agencé(e) dans l'espace entre la bague intérieure et la bague extérieure. Le corps de roue libre présente une pluralité d'éléments de serrage (32) mobiles, de préférence de structure identique, qui sont configurés pour se déplacer respectivement dans le sens radial vers l'extérieur à l'encontre d'une force de ressort élastique lors d'une rotation de la bague intérieure. La force de ressort élastique est produite par un élément de type ressort (36). Les éléments de serrage sont soumis à une force agissant radialement vers l'extérieur exercée par les éléments périphériques.
PCT/IB2010/053781 2010-08-23 2010-08-23 Roue libre sans encliquetage WO2012025782A1 (fr)

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PCT/IB2010/053781 WO2012025782A1 (fr) 2010-08-23 2010-08-23 Roue libre sans encliquetage
PCT/IB2011/053692 WO2012025876A2 (fr) 2010-08-23 2011-08-23 Roues libres

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PCT/IB2011/053692 WO2012025876A2 (fr) 2010-08-23 2011-08-23 Roues libres

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018091027A1 (fr) * 2016-11-16 2018-05-24 Schaeffler Technologies AG & Co. KG Dispositif de roue libre
CN113015861A (zh) * 2018-11-15 2021-06-22 马威克公司 用于自行车的电动辅助设备
WO2023174689A1 (fr) * 2022-03-18 2023-09-21 Robert Bosch Gmbh Dispositif d'entraînement pour une unité d'entraînement d'un vélo électrique, unité d'entraînement et vélo électrique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014182447A1 (fr) * 2013-05-09 2014-11-13 Schaeffler Technologies Gmbh & Co. Kg Embrayage a coin avec moyeu fendu

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR330004A (fr) * 1903-03-06 1903-08-10 Louis Eugene Marien Chavanet Encliquetage perfectionné pour roue libre de bicyclettes
FR1081875A (fr) * 1953-05-07 1954-12-23 Perfectionnements apportés aux engins, tels que les véhicules légers, comportant un embrayage à friction
FR1288751A (fr) * 1960-12-14 1962-03-30 Perfectionnements apportés aux mécanismes irréversibles en particulier aux mécanismes du genre des roues libres
US3040590A (en) * 1958-09-08 1962-06-26 George E Smithburn Demountable power unit and associated implements
US3236345A (en) * 1963-03-13 1966-02-22 Eaton Mfg Co One-way clutch
DE1575836A1 (de) * 1966-06-17 1970-03-19 Dana Corp Wahlweise einrueckbare Radnabenkupplung
US3877556A (en) * 1973-09-28 1975-04-15 Philip J Brownscombe Silent ratchet
DE2749271B1 (de) * 1977-11-03 1979-02-22 Eugen Ing Hack Klemmbacken-Freilaufkupplung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3911075A1 (de) * 1989-04-06 1990-10-11 Schaeffler Waelzlager Kg Lastschaltbare freilaufkupplung
JP2755724B2 (ja) * 1989-09-27 1998-05-25 エヌティエヌ株式会社 ２方向クラッチ
JP3354982B2 (ja) * 1993-02-26 2002-12-09 エヌティエヌ株式会社 ２方向差動クラッチ
DE10327213A1 (de) * 2003-06-17 2005-01-13 Ina-Schaeffler Kg Klemmkörperfreilaufeinrichtung zum Kuppeln in beide Drehrichtungen
KR20100032505A (ko) * 2008-09-18 2010-03-26 변동환 양방향 클러치

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR330004A (fr) * 1903-03-06 1903-08-10 Louis Eugene Marien Chavanet Encliquetage perfectionné pour roue libre de bicyclettes
FR1081875A (fr) * 1953-05-07 1954-12-23 Perfectionnements apportés aux engins, tels que les véhicules légers, comportant un embrayage à friction
US3040590A (en) * 1958-09-08 1962-06-26 George E Smithburn Demountable power unit and associated implements
FR1288751A (fr) * 1960-12-14 1962-03-30 Perfectionnements apportés aux mécanismes irréversibles en particulier aux mécanismes du genre des roues libres
US3236345A (en) * 1963-03-13 1966-02-22 Eaton Mfg Co One-way clutch
DE1575836A1 (de) * 1966-06-17 1970-03-19 Dana Corp Wahlweise einrueckbare Radnabenkupplung
US3877556A (en) * 1973-09-28 1975-04-15 Philip J Brownscombe Silent ratchet
DE2749271B1 (de) * 1977-11-03 1979-02-22 Eugen Ing Hack Klemmbacken-Freilaufkupplung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018091027A1 (fr) * 2016-11-16 2018-05-24 Schaeffler Technologies AG & Co. KG Dispositif de roue libre
CN113015861A (zh) * 2018-11-15 2021-06-22 马威克公司 用于自行车的电动辅助设备
CN113015861B (zh) * 2018-11-15 2023-06-20 马威克集团公司 用于自行车的电动辅助设备
WO2023174689A1 (fr) * 2022-03-18 2023-09-21 Robert Bosch Gmbh Dispositif d'entraînement pour une unité d'entraînement d'un vélo électrique, unité d'entraînement et vélo électrique

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