CN103213646B - Especially it is in the bicycle drive of multi-speed gear hub form - Google Patents

Abstract

The present invention relates to the bicycle drive for being especially in multi-speed gear hub form.For in bicycle drive,At least one torque transmission path from input side (101) through this move towards outlet side (202) and corresponding to the ratchet (111) of third member (210) that can be adjusted relative to the first component (101) with ratchet,The present invention proposes that third member (210) has cam surface (212),The cam surface coordinates with the cam-follower portion (214) of ratchet (111) to cooperate,So that when third member (210) from enable be positioned against inoperative position motion when,The cam surface (212) so moves relative to cam-follower portion (214),I.e.,Ratchet (111) is allowed to leave the bonding station,And when third member (210) is from inoperative position towards when enabling position motion,Cooperated by cam surface (210) with the cooperation of cam-follower portion (214) to force ratchet (111) to move,So as to enabling on position in the bonding station or at least towards occupying the direction of the bonding station by pretension in third member (210).

Description

Especially it is in the bicycle drive of multi-speed gear hub form

Technical field

The present invention relates to bicycle drive, and it includes：Input side, can be in the input based on the input torque for pedaling pedal Side is passed into the bicycle drive, is optionally implemented as input driving moment or the conduct acted in the driven direction The input brake torque acted on braking direction；Outlet side, the output driving torque based on input driving moment is in the output What side was prepared for passing to bicycle can powered rotating wheel；Corresponding to the brake of outlet side, brake can basis Input brake torque and be placed into related to input brake torque brake engagement, provided with to will pass through outlet side and depended on The braking moment of input brake torque can powered rotating wheel to brake；Transmission device, its in input side and outlet side and Multiple torque transmission paths of different speed increasing ratios or speed reducing ratio are provided between brake and the transmission device is preferably comprising at least One planetary gear passes case；Wherein, at least one torque transmission path that the input side is connected with the outlet side is by extremely A few ratchet, in order to transmit torque by the torque transmission path, the ratchet can be placed into a bonding station, the engagement Position be allowed in bicycle drive rotatably mounted first component with ratchet and bicycle drive can Rotational installation corresponding second component between transmit torque, with will pass through with the re-spective engagement of second component construction engagement and Produce and rotate synchronized links, and in order to transmit torque by least one other torque transmission path, and according in the input Side is incoming so as to the input torque transmitted by other torque transmission paths, enables to the ratchet to leave the engagement position Put, to allow both parts at least on the relative rotation direction by occurring during other torque transmission paths transmission torque Relatively rotate.

When necessarily considering other structures, this bicycle drive is typically also in multi-speed gear hub form, and it has There are the drive device that may be rotatably mounted on hub spindle and the sleeve that may be rotatably mounted on hub spindle.Drive device conduct Input side and sleeve is as outlet side.Then, drive device can suitably constitute first component, one of transmission device The internal gear of the epicyclic train of driving member such as transmission device forms second component.It is however also possible to expect ratchet and one Other corresponding relations of the part of such multi-speed gear hub.Such as the internal gear of the epicyclic train of transmission device can be with shape Into first component, sleeve forms second component.

Background technology

Many embodiments of the bicycle drive in multi-speed gear hub form of the above-mentioned type are known.Ginseng See US3,432,013, DE3819065A1 (and corresponding GB2207966A), EP0383350A2, US3,608,683 and DE4142867A1.EP2327612A2 shows a kind of bicycle multi-speed gear hub, and it corresponds to the bicycle of the above-mentioned type and passed Device is moved, now the drive device free-wheeling clutch between drive device (1) and the internal gear (3) of the first gear stage (I) (11) realized in the form of claw type free-wheeling clutch, just as it is considered as specially suitable in practice.

Generally in such bicycle drive, ratchet is equipped with bicycle that can be relative to first component to adjust Transmission device third member, third member so interact with ratchet, first in third member relative to first component Put, ratchet is in bonding station or is referred to below as at least towards the direction for occupying bonding station by pretension, first position Position is enabled, and ratchet leaves according to third member from position adjustment is enabled to the second place relative to the first component The bonding station, the second place is in referred to below as inoperative position.

Therefore, according to US3,432,013, control set is provided with as third member in this sense, control is enclosed on Two driving ratchets are made to leave bonding station with overcoming spring-return power during braking, so as to now can be by brake pawl by power Square passes to brake, is not in the situation for being referred to as " braking is locked " that transmission device is clamped and definitely avoided, now Brake is switched on, but can not be disconnected again, because pedaling pedal forward by bonding station required for breakaway braking device Prevented against the driving ratchet corresponding to joint construction.Such embodiment is also (or corresponding by DE3819065A1 GB2207966A), EP0383350A2 and DE4142867A1 are disclosed.US3,608,683 also shows that the structure of correlation.

Disclose using roller to realize free-wheeling clutch one-way clutch in other words, these rollers are in order in first component Torque is transmitted between composition surface and the cam surface of second component and is clamped, just as example being realized according to EP0679970B2 As.

It is aware of from DE4402344C1, ratchet is overcome the bullet by ratchet pretension to its bonding station using cam member 7 Leave bonding station to the power of spring.In the solution according to known to DE4402344C1, ratchet is used for annular element and wheel Hub axle anti-rotating is connected, and the cam member for lifting ratchet is made up of the control panel that can be coaxially moved with hub spindle.

DE4229023C2 describes a solution, wherein, two ratchet groups can be by the control panel being axially movable Alternately enabled and failed, the ratchet of the first ratchet group is maintained on its bonding station by the control panel on the first axial location And allow the ratchet of the second ratchet group to leave bonding station, and keep the ratchet of the second ratchet group on the second axial location On its bonding station and the ratchet of the first ratchet group is allowed to leave bonding station.These ratchets pass through ratchet spring direction respectively The direction of off-position is occupied by pretension, the ratchet does not engage with corresponding joint construction on off-position.In torque transmission The power of middle appearance plays a part of controlling ratchet.Control panel can by be passed to from outside the berth-changing strength of multi gear wheel hub using sliding block come It is axially adjustable, changed to enable and to fail by the alternating of two ratchet groups between at least two grades of multi gear wheel hub Shelves.

It is aware of from EP2112062A1 in the epicyclic train of bicycle drive using so-called " passive pre- Tight ratchet ", it is carried by fixed bracket and is used for optionally release or locked central gear and provides idle running Function gives locked central gear.The ratchet of spring pre-tightening can be by can be relative to carriage turns through the convex of too small rotational angle Gear member switches between two states.In a first state, ratchet admissible centre gear arbitrarily rotates relative to bracket, that is, exists Rotated in two possible rotation directions.In the second state, ratchet prevent central gear in the first rotation direction relative to Carriage turns, but allow central gear in second rotation direction opposite with the first rotation direction relative to carriage turns.For These functions are realized, on the one hand ratchet can turn to the position corresponding to first state according to cam member position around the first rotary shaft In putting, and on the other hand it can be rotated around the second rotary shaft, to realize the lost motion functionality corresponding to the second state.

The content of the invention

The task of the present invention is to provide the bicycle drive with the third member of the above-mentioned type, wherein, extremely Few one at least one ratchet for being passed through the torque transmission path that input side is connected with outlet side can according to Input side is passed to run and highly reliably leave come the input torque transmitted through at least one other torque transmission path Bonding station, without being clamped in transmission device, will not occur so-called " braking lock under braking in other words Extremely ".

Itd is proposed to complete the task, third member has a cam surface, the cam surface cam with ratchet in the following manner Servo-actuated portion coordinates cooperation：Third member from enable be positioned against inoperative position motion when, the cam surface is so relative to cam Servo-actuated portion's motion, i.e. allow ratchet to leave bonding station, and when third member is moved from inoperative position towards position is enabled When, cooperated by cam surface with the cooperation of cam-follower portion to force ratchet to move, so as to enabling on position in third member In the bonding station or at least the direction of the bonding station is being occupied by pretension.

Especially it is contemplated that third member is supported on first component so as to common rotation, and third member can phase Rotated for first component, preferably rotate through the finite angle scope for example limited by backstop.Bicycle drive changes Gear mechanism can then play merely function as tumbler, and this is favourable.It can save and realize such as axial deflection Complex mechanism.

It is preferred that providing, third member enables position by pretension by spring mechanism direction.According to this improvement motion, Ke Yiyou Profit simply accomplishes that the ratchet is in its bonding station again after terminating by the torque transmission of other torque transmission paths, so as to Can be by the way that driving moment be transferred into input side by the torque transmission path of the ratchet.But completely it is conceivable that the Three parts are adjusted with will pass through according to input side is incoming by the torque transmission path of the ratchet come the input torque transmitted To enabling position, or by third member towards with the help of enabling the spring mechanism of position pretension.But if third member It can be placed into according to the input torque being passed in input side from inoperative position and enable position, then not necessarily be provided with spring mechanism.

For ratchet propose it is following improve, ratchet can enabling on position around being limited by cam-follower portion in third member First rotary shaft rotate, and on the inoperative position of third member around the second rotary shaft rotate, the second rotary shaft be by with this Cam-follower portion ratchet portion spaced apart limits, generally by with for the ratchet opposite with the junction surface that joint construction engages Portion limits.Here, when third member is in inoperative position, ratchet can rotate around the second rotary shaft, when third member is in When enabling position, ratchet can rotate around the first rotary shaft.It is appropriate that it can set corresponding to the ratchet and act on the ratchet Spring mechanism, enabled in third member on position, the spring mechanism just around the first rotary shaft towards the rotation of bonding station and The pretension ratchet is sayed, and on the inoperative position of third member, the spring mechanism just departs from the phase around the second rotary shaft direction Answer pretension ratchet for the rotation of the position of joint construction.

By third member, ratchet advantageously can occupy the preloaded idle running spine in direction of bonding station as direction The working method of pawl and the work as the preloaded ratchet in direction towards one/this position for departing from re-spective engagement construction Make to be switched between mode.

Normally occur, one/this acts on the spring mechanism of ratchet at least on the inoperative position of third member Towards pretension ratchet on the direction of off-position is occupied, the ratchet does not engage with joint construction on the off-position.

Typically can also it is contemplated that one/this acts on the spring mechanism of ratchet at least in the enable bit of third member Put and occupy pretension ratchet on the direction of bonding station in direction.

The various critical functions of bicycle drive are very advantageously realized using the ratchet of the present invention.

Therefore people for third member it can be stated that be at least at least some moment transmission dress when enabling position Configuration state, ratchet can be because of by least one other torque transmission path (hereinafter also referred to other torques of the first kind Bang path) torque transmission and according to and re-spective engagement construction interaction moved by travel position, in travel position The upper ratchet does not rotate with the joint construction associatedly to be engaged, to allow both parts at least at one by described other Relatively rotated on the relative rotation direction that the torque of torque transmission path occurs when transmitting.Can reliably it avoid in transmission device Interior clamping.

Other torque transmission paths (the other torque transmission paths for being also referred to as the first kind herein) can input this Side is connected with brake, can be powered to brake will pass through the outlet side offer braking moment related to input brake torque Rotating wheel.Ratchet is that the torque transmission advantageously basis that this can be for other torque transmission paths Jing Guo the first kind is inputting The input brake torque that side is passed into leaves bonding station.

Particularly preferably propose, third member can be adjusted to invalid bit according to input brake torque from position is enabled Put, or/and third member can be adjusted to from inoperative position according to the input driving moment being passed in input side and enable position (as described above).

People can also advantageously provide for, and ratchet can be in bicycle drive and right according to being passed into outlet side Bonding station should be left in the torque of bicycle backward.Now, third member can pass according to bicycle is passed in outlet side Dynamic device and the torque corresponding to bicycle backward and be adjusted to inoperative position from position is enabled.

Obtain very high operating reliability in a case where, at least on the inoperative position of third member the ratchet with The interaction of re-spective engagement construction

A) because passing through the power of other torque transmission paths (the other torque transmission paths for being also referred to as the first kind herein) Square transmission, or/and

B) because in outlet side bicycle drive will be passed to corresponding to the torque of bicycle backward

And the ratchet is acted on for ratchet is left bonding station.

People are it can be stated that all torque transmission paths that input side is connected with outlet side pass through at least one present invention Ratchet, torque is transmitted at all transmission gears so as to ratchet, to provide output drive according to input driving moment Kinetic moment.But it is also certain it is envisioned that at one or more transmission gears, torque passes through one from input side Outlet side is passed to without the torque transmission path of ratchet of the present invention.To this end it is possible to use, ratchet realizes one-way clutch Device or free-wheeling clutch.With regard to this it is envisioned that at least enabling on position in third member, the ratchet can be because of processes The torque transmission of at least one other torque transmission path (hereinafter also referred to other torque transmission paths of Second Type), foundation Interaction with re-spective engagement construction and be moved to travel position, in the travel position, the ratchet not with the joint construction Rotation associatedly engages, and at least occurs when transmitting torque by the other torque transmission paths to allow both parts Relatively rotate and relatively rotated on direction.

As described above, this other torque transmission path (is also referred to as at least one other torque transmission path herein in other words For other torque drive paths of Second Type) input side and outlet side can also be connected, it is defeated to be based in outlet side Enter driving moment and output driving torque is provided.Here, the ratchet is in order to by the power of other torque transmission paths of Second Type Square transmission and can according to the input side be passed to input driving moment leave this by the interaction with joint construction and connect Close position.

Realized relatively especially it is envisioned that the torque that outlet side is connected with brake passes with braking function The path other torque transmission paths of the first kind (herein be also referred to as) is passed by least another ratchet, at least another spine Pawl in order to transmit torque by the torque transmission path and can be placed into one be allowed in ratchet it is rotatably mounted from Drive a vehicle and torque is transmitted between the part of transmission device the 4th and the corresponding rotatably mounted part of bicycle drive the 5th In bonding station, will pass through with the engagement of the re-spective engagement of the 5th part construction to produce rotation synchronized links.Now, it is described Another ratchet can occupy the direction of the bonding station by pretension by spring mechanism direction.

Because according to the present invention, being passed through the torque transmission path that input side is connected with outlet side and also can be by phase At least one ratchet of " driving ratchet " should be referred to as, the active control to other ratchets (also referred to as " brake pawl ") can be saved System, thus avoid this or these brake pawl and for example keep the danger of attachment because grease adheres in disengaged condition Danger.Always ensure braking function for this.It the substitute is, according to torque of the invention, that input side is connected with outlet side The driving ratchet that bang path is passed through leaves the bonding station to brake, so as to which ratchet such as glues because of grease at this moment It is attached without returning to the functional fault of bonding station in the case of, bicycle simply can not be driven.This is still tolerable, because Functional fault causes cyclist to pay attention at once, but does not threaten important braking function, because at least one brake pawl (general multiple brake pawls) are still uncontrollably for used in braking moment transmission.

Other ratchets (brake pawl) because by by least one ratchet and by input side and outlet side phase Even torque transmission path torque transmission, can according to accordingly answer joint construction interaction and by moving movement to surpass Journey position, in the travel position, the ratchet is not rotated with joint construction and associatedly engaged, so as to allow the 4th and the 5th part extremely Few relative rotation occurred when passing through and transmitting the torque for the torque transmission path that input side is connected with outlet side for one Relative rotation on direction.If the other torques at least one Second Type that input side is connected with outlet side transmit road Footpath, then corresponding situation be also applied for the torque transmission by other torque transmission paths.

There is the possibility of a variety of implementation bicycle drives in principle.As described above, typical bicycle drive Formed in the form of multi-speed gear hub, it include may be rotatably mounted on hub spindle and as input side drive device and It may be rotatably mounted at sleeve on hub spindle and as outlet side.Now, drive device can advantageously form first Part, and the driving member of transmission device may be constructed second component.For this it is specific propose, the epicyclic train of transmission device it is interior Gear forms second component.

Also, it has been proposed that at least one component as described below constitutes third member：At least one component is at least local Radially it is located in drive device, at least one component is installed in rotation on hub spindle, simultaneously using the drive device And an angle range by enabling position and inoperative position limits can be at least rotated through relative to the drive device, and institute State at least one component and preferably part form and preferably meet synchronous piece function simultaneously at least one rotation direction in a ring Perhaps it is referred to as synchronous piece.Furthermore, it is possible to set at least one supporting member located at drive device and the component (annular in other words Part or synchronous piece) supporting member between compression spring, it is relative to drive device by the component pretension to enabling position.Enable Position can limit suitably by the backstop between drive device and component.

It is further envisioned that in the driving member and the component of the transmission device, one of them forms the 4th part, therein Another forms the 5th part.In the case, on the one hand the component can form the 4th or the 5th part, and simultaneously another Aspect forms third member.The pinion frame of one/this epicyclic train of the transmission device can suitably constitute Four or the 5th part.Especially it is envisioned that pinion frame forms the 4th part, correspondingly, the part forms the Five parts and third member is formed simultaneously.Torque is transferred to brake from input side therefore can be suitably by pinion frame To realize, it is generally desirable to pass through the multiple interconnections, preferably of the epicyclic trains of multiple front and rear arrangements of transmission device It is the pinion frame being connected.Multi-speed gear hub can be advantageously as example knowing from EP2327617A2 To design.

It is preferred that providing, such turn is realized between the drive device of first component and the component for forming third member forming Dynamic gap, i.e. when drive device rotates backward, at least one torque that the input side (101) is connected with the outlet side passes The ratchet that is passed through in path is passed because the component leaves towards the relative rotation of inoperative position or can leave the bonding station, At the latest when the rotating backward of internal gear for forming second component is started.Allow ratchet leave bonding station by one/ This corresponds to the ratchet and acts on the spring mechanism of the ratchet to realize, or/and by can advantageously have it is corresponding partially The effect for turning the internal gear joint construction on inclined-plane acts synergistically in other words.

Brief description of the drawings

Below with reference to embodiment and the present invention is described in detail with reference to the attached drawings.

Fig. 1 shows the basic transmission diagram for the preferred embodiment for the present invention for including new gear；

Fig. 2 is shown in the embodiment of the present invention of multi-speed gear hub of the transmission diagram is realized, along hub spindle central shaft The longitudinal section of line；

Fig. 3 is the partial enlarged drawing of Fig. 2 power wheel hub, can see the first Planetary Gear Transmission in multi gear wheel hub herein Inventive drive means free-wheeling clutch between the internal gear and drive device of level；

Fig. 4 show drive device, the ratchet of internal gear and drive device free-wheeling clutch and annular element another is vertical Sectional view, the annular element correspond to the ratchet and are installed in rotation on by the drive device on hub spindle, and can be relative An angle range is rotated through in drive device, can influence ratchet working method using the annular element；

Fig. 5 shows the drive device with multiple ratchets, the ring corresponding to ratchet in the stereogram for decomposing diagram form Shape part and can by drive device by the drive device free-wheeling clutch including ratchet come the internal gear that drives；

Fig. 6 shows the drive device with ratchet, and it is in the state axially plugged together with annular element；

Fig. 7 shows the drive device with ratchet, annular element and cutting depending on the internal gear gone out, and it, which is in, axially plugs together shape State；

Fig. 8 shows the axial view of in axial plugging state, Fig. 7 component, wherein according to perpendicular to center Axis, corresponding to the cutting plane cuttings of Fig. 7 views the internal gear is shown；

Fig. 9 shows the axial sectional view of the whole power wheel hub corresponding to Fig. 8, wherein the drive device free-wheeling clutch Ratchet because the diverse location of the annular element and in being different from working condition according to Fig. 7 and Fig. 8 view.

Embodiment

Fig. 1 shows the original for the embodiment that can propose and improve the power wheel hub proposed advantageously with the present invention Reason figure.Now, half of transmission above hub spindle 7, including hub spindle 7 but not including sleeve is schematically illustrated Wheel hub.

Powered motion is transfused at drive device 1, herein, is rotated and is synchronously filled in advance rotational motion by driving Free-wheeling clutch 11 is put to realize, to be input to the first gear stage I on the first internal gear 3.Retouched hereinafter with reference to accompanying drawing State the design structure of the present invention of the drive device free-wheeling clutch according to a preferred embodiment.

First order planetary gear 5 is housed on the first pinion frame 2a, with (or can with) the first pinion frame It is connected to be equipped with second level planetary gear 6 on co-rotational second pinion frame 2b.First order planetary gear 5 has respectively There are the first planetary gear 51, the second planetary gear 52 and third planet gear 53, they are anti-rotatably connected with each other and correspondingly In the first central gear 71, the second central gear 72 or the 3rd central gear 73.Pass through the center corresponding to these central gears Engagement sleeve 81,82,83 make it that these central gears relative to hub spindle 7 are anti-rotating, the central gear clutch Formed in the form of free-wheeling clutch.Then, thus there is the first gear stage I corresponding speed increasing ratio.Because in the first transmission The first internal gear 3 is driven in advance rotation direction in level I, so central gear clutch 81,82,83 must support these Central gear is relative to the rotation on rotation direction is fallen back.

Central gear clutch 81,82 is controllable (changeable).Idle running clutch on center of maximum gear 73 Device 83 have to need not be switched by clutch, because its less central gear 71,72 in these central gears 71,72 are made Central gear clutch 81,82 relative to the anti-rotating of hub spindle 7 when AOD Automatic Overdrive run.In as deceleration transmission level 1 is not utilized in one gear stage I:L gear ratio, thus always necessarily have a gear stage in action and correspondingly in institute There is at least one central gear in operation transition status will not to be rotated relative to hub spindle 7, in shown structure At least maximum central gear 81.

It is comprising pinion frame 2b, second level planetary gear 6, central gear 74,75 and secondary annulus 4, as super Second gear stage II of fast gear stage also has and the first gear stage identical structure.The regulation of speed increasing ratio by it is controllable (can Switching) central gear clutch 84,85 realize that they are also in free-wheeling clutch form, and each central gear 74,75 is just Do not rotated relative to hub spindle 7 for advance rotation direction.When one of central gear 74,75 is relative to hub spindle 7 When anti-rotating, the transmission to sleeve is realized by internal gear free-wheeling clutch 10 on secondary annulus 4.If two Central gear is free to rotate, then is realized on pinion frame 2b driven, and the pinion frame has to unshowned wheel hub The pinion frame free-wheeling clutch 9 of sleeve.

Pinion frame 2a and 2b can be made up of pinion frame 2a, 2b of one, as shown in Figure 1.Pinion frame 2a, 2b are used to retroversion rotational motion passing to unshowned backpedalling brake.Wheel is operated also as forward drive rotational motion It is activated in drive device 1.Fall back access braking free-wheeling clutch 12 be arranged on drive device 1 and pinion frame 2a it Between.In order to cause the first internal gear 3 for falling back operating more quickly than pinion frame not cause to be driven in brake operating Device it is locked, drive device free-wheeling clutch 11 disconnected when falling back and rotating.Brake free-wheeling clutch 12 braking when Fall back and pinion frame 2a, 2b are driven in rotation direction, thus control the backpedalling brake.Backpedalling brake can be according to side known per se Formula is for example formed in the form of roller brake, and plurality of roller makes brake shoe radial outward movement in riser region, or with Cone brake form, wherein the cone being axially movable radially struts brake shoe.Brake operating advances selected by rotation with being directed to Total gear ratio is independently carried out using continuing directly to transmit maneuvering motion on the drive means.

Fig. 1 key diagram shows 9 grades of designs with backpedalling brake.Most 9 grades of this design are by low speed rotation level I Three gear stage gear ratio be multiplied by obtained from overdrive level II three presumable states.Gear stage I three changes Fast gearshift is：I) the first central gear 71, ii decided) the second central gear 72 for deciding, and iii) really The 3rd central gear 73 decided；Gear stage II three speed-change and gearshift states are：I) the 4th central gear decided 74, ii) the 5th central gear 75 decided, and iii) central gear 74 and central gear 75 be all uncertain.

To further illustrate the basic structure shown in Fig. 1, the document is come from referring to the A2 of EP 2 327 617, Fig. 1.It is applicable The lengthwise movement of speed change rope is converted into operation set in the operating mechanism of control centre's engagement sleeve, simple rotation work Rotational motion and the lengthwise movement can be passed to inside power wheel hub to act on controllable central gear clutch Sun gear pawl, such operating mechanism are described in the previous application of the applicant, i.e., are carried on October 23rd, 2010 The German patent application DE 10 2,010 049 438.0 of friendship, the Netherlands patent applications NL submitted on October 11st, 2011 2007564 and it is described in the U.S. Patent application US 13/279,446 that on October 24th, 2011 submits.But in order to The central gear clutch of changeable operation is controlled, operating mechanism other, that this area is known per se can also be used.

In shown basic structure, " torque transmission path " of all driving moments is provided in sleeve in conduct The drive device 1 of " input side " and as passing through the drive device free-wheeling clutch 11 between the sleeve of " outlet side ".Separately Outside, in shown basic structure, " other torque transmission paths " is from drive device 1 through braking free-wheeling clutch 12 and planet tooth Wheel carrier 2a, 2b come backpedalling brake.

In order to be additionally provided 1:1 gear ratio, the structure can so change, and can be used to provide driving force in sleeve Second drive device free-wheeling clutch of another " the other torque transmission paths " of square from drive device 1 Jing Guo operable switching To pinion frame 2a, 2b.

It is also noted that also other structures and can with motion of the present invention and improve motion relatively expect it Its structure, wherein, the torque transmission passes through multiple different " torque transmission paths " to wheel hub sleeve according to entirely different mode Cylinder is realized by least one other " torque transmission path " to backpedalling brake.

Fig. 2 shows the specific embodiment of the bicycle transmission wheel hub of the present invention of the transmission diagram according to Fig. 1, herein, real The of the present invention motion related to the drive device free-wheeling clutch 11 of transmission diagram is showed.Hereinafter, in Fig. 1 and before to transmission Used reference continues, for corresponding or similar part, to add 100 respectively during the description of figure.Now, this is just combined The drive device free-wheeling clutch of invention describes for the degree required for the present invention explanation according to Fig. 2 total.For This, is not also identified in Fig. 1 with all parts for marking mark with corresponding reference in fig. 2.For following institute The part that the unshowned in Fig. 1 or unused mark stated represents, using the reference more than 200.For example, sleeve Represented with 202.In sleeve 202, two epicyclic train levels are equipped with according to Fig. 1 transmission diagram, wherein, gear stage I tools There are internal gear 103, planetary gear 151,152 and 153 and central gear 171,172 and 173, and gear stage II has planetary gear 164th, 165 and central gear 174,175.All planetary gears are carried by common pinion frame 102a, 102b.In multiple Heart gear corresponds to central gear clutch, as described by the transmission diagram of reference picture 1.

Drive device 101 carries ratchet, and ratchet construction synchronous with the dentation on the inner peripheral surface of internal gear 103 is (also referred to as Joint construction) drive device free-wheeling clutch 111, and also referred to as driving ratchet below the ratchet are realized together.Below Also these ratchets will be referred to mark 111 as drive device free-wheeling clutch.The unshowned other ratchets of Fig. 2 are by along footpath Braking free-wheeling clutch 112 is carried and forms to pinion frame 102a, 102b parts 204 in ratchet 111.System The ratchet (brake pawl) of dynamic free-wheeling clutch is also referred to as braking free-wheeling clutch by reference 112 below. Internal gear free-wheeling clutch mark 110 represents.The pinion frame not being shown specifically free-wheeling clutch is additionally provided with, it is used Mark 109 represents.By by rotation direction is fallen back the torque that acts on input the drive device, can by brake idle running from Clutch 112 and pinion frame 102a, 102b manipulate backpedalling brake 206.

According to Fig. 2, central gear clutch is switched by operation in other words using operating mechanism to manipulate, herein not to this It is described further, because completely different operating mechanism can also be used in principle.The operating mechanism base of Fig. 2 power wheel hub Corresponding to the German patent application DE 10 2,010 049 438.0 submitted on October 23rd, 2010 and in corresponding lotus in sheet Structure described in orchid application and U. S. application.With reference to the content of these applications, the disclosure of which is cited includes this Shen in full In open scope please.

As shown in figure 3, diametrically in the planet of the brake pawl 112 equipped with the braking free-wheeling clutch 112 shown in Fig. 9 The component 210 of part form in a ring is provided between tooth rest end 204 and the ring part of drive device 101 equipped with ratchet 111 (hereinafter referred to as annular element 210), the component synchronous construction (alternatively referred to as joint construction) with dentation on inner peripheral surface are described Synchronous construction coordinates with brake pawl 112 to cooperate to form braking free-wheeling clutch 112.In a manner known per se, these Brake pawl 112 for example, by from the spring mechanism that ring spring is formed by pretension to the direction for occupying bonding station, engaging The brake pawl can be engaged on the inner peripheral surface of annular element 210 with synchronous construct on position, so as to will retreat rotation direction by The braking moment that drive device 101 passes to annular element 210 is transferred to pinion frame 102a, 102b ring part 204, so as to Continue to pass to backpedalling brake 206.And if drive device 101 is rotated to will pass through in advance rotation direction with annular element 210 The drive device free-wheeling clutch 111 transmits driving moment to internal gear 103 and then continues through the gear stage and pass to Sleeve 202, then the synchronous tectonism accordingly formed on the inner peripheral surface of annular element 210 is in brake pawl 112, so as to spine Pawl overcomes the returning place force of spring mechanism, is pressed towards a travel position by each synchronous construction, as a result, because of that the sky realized Journey clutch function, be on the one hand drive device 101 together with annular element 110 and internal gear 103, be on the other hand the planetary gear Frame, can be with different rotating speeds around the smooth rotation of hub spindle 107, just as it corresponds to gear stage I instantaneous switching state.

As described above, on the one hand correspond to driving ratchet 111 and on the other hand with its synchronously construction and brake pawl 112 Forming the annular element 210 of braking free-wheeling clutch 112 can rotate around hub spindle together with drive device 101 and drive is supported on for this On dynamic device 101.Annular element 210 can now rotate relative to drive device 101, at least enable position and inoperative position it Between, wherein, on position is enabled the driving ratchet 111 as standard by ratchet spring (such as ring spring) or ratchet bullet Spring mechanism is towards its bonding station by pretension so as to the idle running of construction interaction synchronous with the inner peripheral surface of internal gear 103 Clutch ratchet, so as to which the driving moment acted in advance rotation direction is transferred into internal gear 103 simultaneously from drive device 101 And then sleeve 202 is transferred to by this gear stage；And on inoperative position, the drive device free-wheeling clutch 111 is broken Open, because driving ratchet 111 leaves its bonding station and occupies an off-position, the ratchet is not on this off-position Construction interaction synchronous with the inner peripheral surface of internal gear 103.

According to Fig. 9 view, annular element 210 is in and enables position, and drives ratchet 111 to occupy its bonding station.Now, The torque that drive device 101 is passed into advance rotation direction can be by driving ratchet 111 and the synchronous structure of internal gear 101 Make and be delivered to internal gear and and then be further transferred by this gear stage to sleeve 202.These driving ratchets 111 rise To the effect of standard idle running ratchet, their velocities of rotation in internal gear 103 in advance rotation direction are more than drive device 101 When may the excess of stroke, in other words may the excess of stroke when drive device 101 rotates backward relative to internal gear 103.So obtain The working method, i.e. be referred to as the enabling on position of the annular element 210 of synchronous piece, the convex peach 212 of radially projecting cam surface exists Radially positioned at the corresponding lower section of ratchet 111, and the spine is radially oppressed at the cam-follower portion 214 that radial inward protrudes Pawl.These ratchets 111 can be rotating around a rotary shaft according to corresponding between cam-follower portion 214 and the convex peach 212 of cam surface The mode of contact zone rotate and by its ratchet spring or ratchet spring mechanism towards the direction quilt for occupying its bonding station Pretension.If velocity of rotation of the internal gear 103 in advance rotation direction is more than the drive device 101, in other words if driving Device 101 is to fall back to rotate relative to internal gear 103, then drive ratchet 111 by the tooth synchronously constructed of internal gear again The rotary shaft just limited from its bonding station by the contact zone being centered around between the convex peach 212 of cam surface and cam-follower portion 214 turns Radially-inwardly oppressed for dynamic meaning, i.e., ratchet will surmount in a manner known per se.

And if annular element 210 is located on the inoperative position relative to drive device 101 as shown in Fig. 6, Fig. 7 and Fig. 8, The convex peach 212 of cam surface for then corresponding to each driving ratchet 111 is rotated away from the region for being radially positioned at each lower section of ratchet 111, from And ratchet 111 so leaves its bonding station because not being supported on its cam-follower portion 114, i.e. it exists around a rotary shaft The ratchet end relative with the engaged pawl end 215 for indented joint synchronous with internal gear radially-inwardly rotates.In annular element 210 The rotary shaft to be worked on inoperative position is by the detent recess 218 of the receiving pawl end 216 in drive device 101 and away from each Contact zone between the pawl end 216 of the abutting end 215 of ratchet 111 limits.

On the inoperative position of annular element 210, ratchet spring or ratchet spring mechanism with annular element 110 Different modes acts on driving ratchet 111 when enabling position, i.e., towards the off-position occupied as shown in Fig. 6, Fig. 7 and Fig. 8 Direction, on off-position the ratchet 111 it is not radially projecting from drive device 101 and correspondingly not with inside Synchronous gear interaction on the inner peripheral surface of gear 103.These driving ratchets 111 reach the off-position or passed through：In ring Shape part 210 is from enabling when position is adjusted to inoperative position only under the pretightning force of ratchet spring or ratchet spring mechanism, now The convex peach 212 of cam surface is so decontroled described in contact zone of the driving ratchet 111 between pawl end 216 and detent recess 218 The rotation of rotary shaft, i.e., it be rotated away under cam-follower portion 214 and finally left below cam-follower portion 214；Or It is to pass through：Drive device 101 is in braking relative to the initial rotation of internal gear 103 and in internal gear on rotation direction is fallen back Under the collective effect of interaction between 103 synchronous toothing and engaged pawl end 215, herein, ratchet 111 is sometimes first Surmount and be then just moved to the off-position, the synchronous gear of internal gear 103 first interacts with engaged pawl end 215, then The convex peach 212 of cam surface is set to be left in the rotated down of cam-follower portion 214 of each driving ratchet 211.Below will also with located at driving Running clearance between device 101 and annular element 210 is relatively introduced this in detail.

Pay attention to, on driving the function of ratchet 111, should just mention the enabling relative to drive device 101 of annular element 210 Turned position area and invalid turned position area, because the convex part of peach 212 of the cam surface for acting on cam-follower portion 214 has Certain circumferentially extending size, and annular element 210 the rotated down of cam-follower portion 214 pass through part do not including cam Even there is bigger circumferentially extending size in the case of the convex peach in face.It is appropriate that shown in Fig. 9, " the footpath of annular element 210 It can be referred to as opening for annular element 210 against the extreme position of the backstop 222 " of drive device 101 herein to prominent backstop 220 With position, and soon reached to Fig. 8 according to Fig. 7, " stopper section 224 of the convex peach 212 of cam surface of annular element 210 herein against The extreme position of the opposite side of the backstop 222 of drive device 101 " is referred to as the inoperative position of annular element 210, although actually spine Pawl 111 is not only activated or is disabled on these extreme positions now, and according in annular element 210 and drive device 101 Between presumable relative rotation scope corresponding relative rotation interval.

As shown in Figures 6 to 9, it is provided with helically between the bearing-surface of drive device 101 and the bearing-surface of annular element 210 The compression spring 230 of form of springs, it occupies the direction pretension annular element of inoperative position relative to drive device direction and made So ensure that driving ratchet 111 is re-engaged after dynamic process, i.e. when the torque acted on rotation direction is fallen back is no longer passed into During the power wheel hub, annular element 210 rotates back into this and enables position.

Unique spiral compression spring 230 is illustrate only into Fig. 9 in Fig. 6.Preferably on the position represented with mark 231 There is two other spiral compression spring 230 between annular element 210 and drive device 101 in action, the spiral compression spring The pretension of annular element 210 is resisted against to the direction of internal gear backstop 222 to annular element backstop 220, i.e., pretension enables position to occupying Direction.That is annular element, which generally always occupies this, enables position, ratchet 111 is driven to be used as standard idle running on position is enabled Clutch ratchet plays a role.When drive device 101 is rotating in advance rotation direction, annular element 210 passes through 220,222 Place abutting and by common rotation in advance rotation direction, wherein, the brake pawl is in pinion frame 102a, 102b In advance rotation direction compared with slow-speed move ratchet supporting part 204 on exceed.

In Fig. 6 to Fig. 9 view, the advance rotation of drive device 101 and internal gear 103, slow-speed is moved in comparison Pinion frame 102a, 102b advance rotate and at least with the sleeve of rotational speed caused by the drive gears from action 202 advance rotates to be carried out counterclockwise, as in fig.9 as shown in arrow V.

In contrast to this, braking when drive device 101 and driven by brake pawl 112 pinion frame 102a, 102b retroversion rotates and internal gear 103 faster falls back rotate in the view according to Fig. 6 to Fig. 9 along up time by comparison Pin direction is carried out, as in fig. 8 as shown in arrow R.Claimed in order to pass through braking moment from drive device 101 in braking For the annular element 210 of synchronous piece or synchronous ring, brake pawl 212 pass to pinion frame ratchet supporting part 204 and because And backpedalling brake 206 is transferred to by pinion frame 102a, 102b, in form-fit manner by drive device 101 with rotating ring Shape part 210 is rotated, and annular element backstop 224 is resisted against and positioned at the inoperative position of annular element by drive device backstop 222.

Annular element 210 transits to inoperative position (Fig. 8) now so realization from position (Fig. 9) is enabled, i.e. in annular element Synchronous toothing on 210 inner peripheral surfaces is when drive device 101 starts to fall back rotation and cause annular element 110 to start to fall back rotation Because of the power of spring 230 with corresponding synchronous gear just fall back rotation direction in form-fit manner drive rotate in the sense that Act on two brake pawls 112.As a result counter-force acts on annular element 210, the counter-force and the spring of spiral compression spring 230 Pretightning force it is opposite and make under the further tension force of spiral compression spring annular element 210 from according to Fig. 9 to enable position relative Rotated in drive device 101 to the inoperative position according to Fig. 8.Once these backstops 224 and 222 abut immediately, then annular Part 210 is driven by drive device 101 in retrogressing rotation direction in form-fit manner therewith.

Made because being rotated when the retroversion of drive device rotates by the retroversion of the pinion frame caused by brake pawl Rotation is fallen back more quickly than drive device 101 into internal gear 103, so by the backstop 220 and 224 of annular element 210 with driving The cooperation of dynamic device backstop 222 and realize, the running clearance between drive device 101 and annular element 210 is for avoiding " passing The clamping and influence of dynamic device even hinder braking " it is important.The running clearance is at least so big, i.e., only works as annular element 210 no longer support corresponding cam-follower portion 214 and ratchet 111 with the convex peach 212 of cam surface therefore are released into its release When position is to be out, just appear in running clearance because backstop 222,224 against and exhaust it is rear caused by pinion frame 102a, 102b drive are rotated, and this is realized by ratchet spring or ratchet spring mechanism, perhaps on internal gear inner peripheral surface Each synchronous gear against collective effect under, the synchronous gear serves towards its off-position under this ratchet state and expels ratchet Effect.Therefore avoiding one side ratchet 111 still plays a part of standard free-wheeling clutch ratchet, and it can be rotated advancing On direction by torque from drive device 101 be transferred to internal gear 103 or correspondingly on rotation direction is fallen back by torque from interior Gear 103 is transferred to drive device 101, and on the other hand, while pass torque to planet tooth on rotation direction is fallen back Wheel carrier 102a, 102b, as a result, internal gear 103 rotates more quickly in retroversion rotation direction than drive device 101.

Following driving detent function is in related in operation to multi-speed gear hub.It is being usually because cyclist advances When pedaling pedal and making the advance rotation of drive device 101, the driving ratchet 111 being placed in drive device 101 is corresponding convex with it The servo-actuated portion 214 of wheel is up in the convex peach 112 of each respective cam surfaces of annular element 110 and thus bites the first planetary gear transmission level The toothing of internal gear 103.This is the normal condition when direction of advance drives.Drive device 101 fall back rotate so as to by means of Help backpedalling brake 206 brake when, driving ratchet 111 with its each cam-follower portion 214 annular element 210 the convex peach of corresponding cam surface 212 are moved down, and then, the default idle running end between annular element 210 and drive device 101 is fallen back against drive device and jointly It is disengaged before rotating, as shown in Figure 9.Planetary gear also work and that (excess of stroke) was ground in advance rotation direction Frame ratchet (brake pawl) 212 is driven by the internal tooth arrangement of annular element 210 and rotated backward, so as to complete braking function.In order to Avoid transmission device from clamping, realize braking and avoid so-called " braking locked " dangerous, driving ratchet 111 is from enabling position mistake Cross to test during inoperative position, herein, if drive device 101 turns with ratchet 111 but without with the retroversion of internal gear 103 It is dynamic, then yet it is available with driving the free-wheeling clutch function of ratchet 111 in transition state, unless making the convex peach of cam surface 212 are servo-actuated the rotated down of portion 214 in respective cams leaves.

These driving ratchets 111 in order to annular element 210 coordinate cooperate and also when bicycle is fallen back completion one it is important Function, because the internal gear 203 is also falling back rotation side more quickly than pinion frame 102a, 102b when bicycle is fallen back Rotated on to (the arrow R in Fig. 8), so as to enabling on position in annular element 210, the internal gear 103 is by driving ratchet 111 Drive device 101 is driven on rotation direction is fallen back.Then, the synchronous gear on the inner peripheral surface of annular element 210 just rotates synchronous meaning Brake pawl 112 is acted on in justice.But pinion frame 102a, 102b do not carry out the rotation, therefore, ring simultaneously Shape part 110 now can with pinion frame 102a, 102b or its ratchet supporting part 204 relative to internal gear 103 and and then 101 slower rotating speed of drive device, which is fallen back, to be rotated, as a result, makes annular element 210 relative to drive device towards inoperative position Side be rotated up.Drive ratchet 111 is by the convex peach 212 of corresponding cam surface being supported in its cam-follower portion 214 So released, i.e. the relative rotation towards inoperative position between drive device 101 and annular element 210 makes cam surface convex Peach 212 departs from the engagement with cam-follower portion 214.These driving ratchets 111 pass through ratchet spring ratchet spring in other words now Mechanism is turned to its off-position, on the off-position, they can not toothing synchronous with internal gear 103 mutually make With.The interaction of the deflection inclined-plane of internal gear teeth structure and the abutting end 215 of driving ratchet 111 can also cause to drive ratchet 111 leave bonding station or at this moment collective effect.

Therefore, when bicycle is fallen back, the clamping of bicycle drive is also reliably prevented.Because in annular element The spring mechanism to be worked between 210 and drive device 101, it is the annular because the spiral compression spring 230 in the present embodiment Part 210 is inserted again when falling back, and this enables position and then leaving this enables position again, so as to drive ratchet 111 falling Occupied not only again when moving back the bonding station and then but be disengaged.That is, leave the bonding station and driving ratchet 111 connects again Relative rotation between the process of conjunction and the drive device 101 now occurred and annular element 210 repeats always, until bicycle not Fall back again.

On driving ratchet 111 with regard to its working method between two mode of operations for " switching ", supplement referring to EP2112062A1 content, which depict with two replacement rotary shaft ratchet and according to completely different technology correlation Relevant work mode.

In the embodiment shown, driving ratchet 111 of the invention is allowed in drive device rotation direction and turns round and go back Switching when bicycle is fallen back between the driving and braking of backpedalling brake wheel hub, and without the clamping of worry transmission device or even So-called " braking is locked " definitely to be avoided.In the solution according to prior art so that be usually control relative to each other Product (being two pairs of ratchets mostly) is bonded with each other, and herein, is bonded with each other when steering is turned round and deflects the drive by axially forcing The region that dynamic control piece will not extremely engage is to obtain, or is rubbed for disengaged necessary to being bonded with each other by using sleeve etc. Control forcibly covers the drive control part of unloading to realize.The motion of the present invention realizes the mechanism rotated merely, and nothing Required to the complex mechanism of axial deflection, and the driving ratchet reliable test and correspondingly these brakings in braking are accomplished Ratchet is always uncontrollably for using.

In other bicycle drive structures, when torque is transmitted to drive by a variety of torque transmission paths When dynamic bicycle or braking, the pawl structures of the present invention can also be utilized reliably to avoid the clamping of transmission device and braking In the case of avoid so-called " braking locked ".

For the ratchet 111 in bicycle drive, wherein at least one torque transmission path passes through from input side 101 The ratchet moves towards outlet side 202, and the ratchet correspond to one can be adjusted relative to the first component 101 with ratchet and The third member 210 to be interacted to enable and fail ratchet with the ratchet, propose that third member 210 has cam herein Face 212, cam surface coordinates with the cam-follower portion 214 of ratchet 111 in the following manner to cooperate：When third member 210 is from enable bit Put towards inoperative position move when, the cam surface 212 so moves relative to the cam-follower portion 214, i.e. allows ratchet 111 Leave the bonding station, and when third member 210 is from inoperative position towards when enabling position motion, by cam surface 210 with The cooperation of cam-follower portion 214 cooperates and forces ratchet 111 to move, so as to enabling on position in this in third member 210 Bonding station or at least towards occupying the direction of the bonding station by pretension.

Claims (27)

1. a kind of bicycle drive, it includes：

- input side (101), the bicycle drive can be passed in the input side based on the input torque for pedaling pedal, and It is optionally implemented as the input driving moment that acts in the driven direction or as the input system acted on braking direction Kinetic moment；

- outlet side (202), the output driving torque based on input driving moment can be provided in the outlet side, to pass to Bicycle can powered rotating wheel；

- can be based on input brake torque corresponding to the brake (206) of the outlet side, the brake and be placed into depending on defeated In the brake engagement for entering braking moment, the braking moment related to input brake torque is provided will pass through the outlet side (202) Can powered rotating wheel to brake this；

- transmission device (I, II), it is provided not between the input side (101) and the outlet side (202) and the brake (206) With speed increasing ratio or multiple torque transmission paths of speed reducing ratio, and the transmission device includes at least one epicyclic train；

Wherein, at least one torque transmission path that the input side (101) is connected with the outlet side (202) passes through at least one Individual ratchet (111),

- in order to transmit torque by the torque transmission path, the ratchet can be placed into a bonding station, and the bonding station holds Perhaps in the rotatably mounted first component (101) and the bicycle drive with ratchet of the bicycle drive Torque is transmitted between rotatably mounted corresponding second component (103), will pass through corresponding the connecing to the second component (103) Close the engagement of construction and produce rotation synchronized links, and

- in order to transmit torque by least one other torque transmission path, it is passed to according in the input side (101) to pass through The input torque that other torque transmission paths are transmitted, enables to the ratchet to leave the bonding station, to allow The phase that one part (101) and second component (103) at least occur when transmitting torque by other torque transmission paths To being relatively rotated in rotation direction；

Wherein, the ratchet (111) corresponds to can be adjusted with respect to the first component (101) the of the bicycle drive Three parts (210), the third member so interact with the ratchet (111)：

- on the first position of the third member (210) relative to the first component (101), the ratchet (111) is in the engagement Position or the ratchet are enabled at least towards the direction for occupying the bonding station by pretension, the first position referred to below as Position, and

- the ratchet (111) can be according to the third member (210) from position adjustment is enabled to relative to the first component (101) The second place and leave the bonding station, the second place is in referred to below as inoperative position；

The bicycle drive is characterised by,

The third member (210) has a cam surface (212), the cam surface cam following with the ratchet (111) in the following manner Portion (214) coordinates cooperation：

- the third member (210) from enable be positioned against inoperative position motion when, the cam surface (212) is so relative to this Cam-follower portion (214) is moved, i.e. and allow the ratchet (111) to leave the bonding station, and

- when the third member (210) enables position motion from inoperative position direction, pass through the cam surface (212) and the cam The cooperation cooperation of servo-actuated portion (214) forces the ratchet (111) to move, so that the ratchet (111) is in the third member (210) enable on position in the bonding station or at least towards occupying on the direction of the bonding station by pretension, is somebody's turn to do Ratchet (111) can rotate in enabling for the third member (210) on position around first limited by the cam-follower portion (214) Axle rotates, and the ratchet (111) can rotate on the inoperative position of the third member (210) around the second rotary shaft, described Second rotary shaft is limited by the ratchet portion (216) being spaced apart with the cam-follower portion (214).

2. bicycle drive according to claim 1, it is characterized in that, the third member (210) be supported in this So as to common rotation on one part (101), and the third member (210) can be rotated relative to the first component (101) and passed through Cross limited angle range.

3. bicycle drive according to claim 1 or 2, it is characterized in that, the third member (210) passes through coiling machine Structure (230) direction enables position by pretension.

4. bicycle drive according to claim 1, it is characterized in that, when the third member (210) is in invalid bit When putting, the ratchet (111) can surround second rotary shaft and rotate；And when the third member (210), which is in, enables position, The ratchet (111) can surround first rotary shaft and rotate.

5. the bicycle drive according to claim 1 or 4, it is characterized in that, provided with corresponding to the ratchet and acting on The spring mechanism of the ratchet,

In enabling on position for third member (210), the spring mechanism just turns around first rotary shaft towards bonding station Pretension ratchet (111) for dynamic, and

On the inoperative position of the third member (210), the spring mechanism just accordingly connects around second rotary shaft towards this is departed from Pretension ratchet (111) for the rotation of the position of conjunction construction.

6. bicycle drive according to claim 5, it is characterized in that, by the third member (210), the ratchet (111) can depart from as the working method towards the preloaded idle running ratchet in direction for occupying bonding station and as direction Switched between the working method of the preloaded ratchet in direction of the position of re-spective engagement construction.

7. bicycle drive according to claim 5, it is characterized in that, act on the spring of the ratchet (111) Mechanism occupies pretension ratchet on the direction of off-position at least on the inoperative position of the third member (210) in direction, The ratchet (111) does not engage with joint construction on the off-position.

8. bicycle drive according to claim 5, it is characterized in that, act on the spring of the ratchet (111) Mechanism at least occupies pretension ratchet on the direction of bonding station on position in enabling for the third member (210) in direction (111)。

9. bicycle drive according to claim 1, it is characterized in that, at least it is in and opens for third member (210) With at least some moment transmission regime during position, the ratchet (111) can be because of by least one first kind Other torque transmission paths torque transmission and according to and the re-spective engagement construction interaction be moved to travel position, In the travel position, the ratchet (111) is not rotated with the joint construction and associatedly engaged.

10. bicycle drive according to claim 9, it is characterized in that, other torque transmission of the first kind Path connects the input side (101) and the brake (206).

11. bicycle drive according to claim 10, it is characterized in that, the third member (210) can be according to defeated Enter braking moment and be adjusted to inoperative position from position is enabled, or/and the third member (210) can pass according in the input side The input driving moment entered is adjusted to from inoperative position enables position.

12. bicycle drive according to claim 1, it is characterized in that, the ratchet (111) can be according in the output Side (202) is passed into the bicycle drive and corresponding to bicycle backward torque and leaves bonding station.

13. bicycle drive according to claim 12, it is characterized in that, the third member (210) can according to The outlet side (202) the is passed into the bicycle drive and torque corresponding to bicycle backward and from enabling position quilt It is adjusted to inoperative position.

14. bicycle drive according to claim 1, it is characterized in that, at least in the invalid of the third member (210) On position, the interaction that the ratchet (111) constructs with the re-spective engagement is due to the fact that acting on the ratchet (111) and making Ratchet leaves the bonding station：

A) because passing through the torque transmission of other torque transmission paths, other bang paths are also referred to as the first kind herein Other torque transmission paths, or/and

B) because the torque corresponding to bicycle backward is passed into the bicycle drive in the outlet side (202).

15. bicycle drive according to claim 1, it is characterized in that, at least enable position in the third member On, the ratchet can construct because of the torque transmission by least one other torque transmission path according to the re-spective engagement Interaction and be moved to travel position, in the travel position, the ratchet is not rotated with the joint construction and associatedly engaged, Other torque transmission paths of at least one other torque transmission path hereinafter also referred to Second Type.

16. bicycle drive according to claim 15, it is characterized in that, other torque transmission of the Second Type Path, also the input side and the outlet side are connected.

17. bicycle drive according to claim 1, it is characterized in that, this is by the outlet side (202) and the braking Other torque transmission paths of the connected first kind of device (206) are by least another ratchet (112), at least another spine Pawl is in order to which other torque transmission paths Jing Guo the first kind transmit torque and can be placed into one and be allowed in ratchet The rotatably mounted part of bicycle drive the 4th and corresponding rotatably mounted bicycle drive the 5th Between part (210) transmit torque bonding station, with will pass through with the re-spective engagement of the 5th part (210) construction engagement and Produce and rotate synchronized links.

18. bicycle drive according to claim 17, it is characterized in that, another described ratchet (112) passes through bullet Spring mechanism direction occupies the direction of the bonding station by pretension.

19. the bicycle drive according to claim 17 or 18, it is characterized in that, another described ratchet (112) because To pass through the power of torque transmission path that pass through at least one ratchet (111) and that the input side is connected with the outlet side Square transmission, travel position can be moved to according to the interaction constructed with re-spective engagement, in the travel position, this is another Individual ratchet (112) does not rotate with the re-spective engagement construction of the 5th part (210) and associatedly engaged.

20. bicycle drive according to claim 17, it is characterized in that, the bicycle drive is driven with multi gear Wheel hub form is formed, and is had and be may be rotatably mounted at drive device (101) on hub spindle (107) and as input side (101) With may be rotatably mounted at it is on the hub spindle and as outlet side (202) sleeve (202).

21. bicycle drive according to claim 20, it is characterized in that, the drive device (101) form this first Part (101), and the driving member (103) of the transmission device forms second component (103).

22. bicycle drive according to claim 21, it is characterized in that, the epicyclic train of the transmission device it is interior Gear (103) forms second component (103).

23. bicycle drive according to claim 20, it is characterized in that, at least one component as described below (210) third member (210) is constituted：At least one component (210) is at least partially radially being located at the drive device (101) in, at least one component (210) be installed in rotation on by the drive device on the hub spindle (107) and Can at least rotate through the angle range by enabling position and inoperative position limits relative to the drive device, and it is described extremely Lack a component (210) part form in a ring.

24. bicycle drive according to claim 23, it is characterized in that, it is arranged on driving dress provided with least one The compression spring between the supporting member of (101) and the supporting member of at least one component (210) is put, the compression spring is by described in For at least one component (210) relative to drive device (101) pretension to position is enabled, this enables position by the drive device (101) backstop between at least one component (210) limits.

25. the bicycle drive according to claim 23 or 24, it is characterized in that, in the driving member of the transmission device In (102b, 204) and at least one component (210), one of them forms the 4th part, and other in which forms the 5th Part (210), wherein, at least one component (210) on the one hand constitutes the 4th or the 5th part, and on the other hand simultaneously Constitute the third member.

26. bicycle drive according to claim 25, it is characterized in that, the epicyclic train of the transmission device Pinion frame (102b, 204) form the 4th part or the 5th part.

27. bicycle drive according to claim 26, it is characterized in that, forming being somebody's turn to do for the first component (101) Between being rotated as being realized between drive device (101) and at least one component (210) for forming the third member (210) Gap, i.e. when the drive device rotates backward, at least one torque that the input side (101) is connected with the outlet side (202) Ratchet (111) that bang path is passed through is because the component (210) leaves or can be from towards the relative rotation of inoperative position The bonding station is opened, at the latest when starting the internal gear (103) for forming the second component (103) and rotating backward.