WO2010009691A1 - Clamping body for a switchable clamping body freewheel, switchable clamping body freewheel and crank-cvt transmission - Google Patents
Clamping body for a switchable clamping body freewheel, switchable clamping body freewheel and crank-cvt transmission Download PDFInfo
- Publication number
- WO2010009691A1 WO2010009691A1 PCT/DE2009/000895 DE2009000895W WO2010009691A1 WO 2010009691 A1 WO2010009691 A1 WO 2010009691A1 DE 2009000895 W DE2009000895 W DE 2009000895W WO 2010009691 A1 WO2010009691 A1 WO 2010009691A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- clamping
- clamping body
- inner ring
- freewheel
- housing part
- Prior art date
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
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/069—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by pivoting or rocking, e.g. sprags
- F16D41/07—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by pivoting or rocking, e.g. sprags between two cylindrical surfaces
- F16D41/073—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by pivoting or rocking, e.g. sprags between two cylindrical surfaces each member comprising at least two elements at different radii
-
- 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
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/08—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action
- F16D41/084—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action the intermediate coupling members wedging by pivoting or rocking
Definitions
- the invention relates to a clamping body for a reversible sprag freewheel, a reversible sprag freewheel, which uses this clamp body, and a crank CVT transmission with such a sprag freewheel.
- a crank CVT transmission is known for example from EP 1 650 071 A2.
- an eccentric eccentric drive assembly which is connected via connecting rod-like connecting elements to a driven shaft forming an output or output shaft with respect to the transmission ,
- the freewheel devices are provided between the connecting rod-like connecting elements and the driven shaft.
- roller or sprag freewheels can be used.
- the driving crankshaft and the output shaft or driven shaft of the crank-CVT transmission are aligned parallel to each other and each rotatably mounted in a gear housing.
- Torque is introduced into the crankshaft from an internal combustion engine and transmitted to the output shaft through the crank CVT transmission.
- the eccentricity of the Exzenterbaumaschine and thus the axis of rotation relative to the drive shaft is changed, whereby the transmitted from the connecting rod connecting elements on the output shaft hub and thus the ratio of the transmission can be adjusted.
- the torque can be tapped for example for driving wheels of a vehicle.
- crank-CVT transmission in the axial direction of the crankshaft successively arranged a plurality of eccentric units, on each of which connecting rod-like connecting elements are mounted and which are in communication with a corresponding number of freewheel units on the output side of the transmission, on the output shaft also in whose axial direction are arranged one behind the other.
- freewheel units it is known to provide switchable or non-switchable freewheels. If non-reversible freewheels are used, a blocking effect is achieved in a relative rotational direction of an outer ring of a freewheel unit and the output shaft, or an inner ring or inner star firmly connected to the output shaft, and no blocking effect is achieved in the other relative rotational direction between the outer ring and the inner star.
- reversible freewheels can be selected by setting a switching mechanism, the blocking direction, so that the two components, namely the inner star and the outer ring, block in a selectable direction of relative rotation and thus only rotated together in this relative direction of rotation.
- the inner star and the outer ring can rotate relative to each other.
- the direction of rotation of the output shaft can be changed so that, for example, forward and reverse gears can be realized by means of switching the switchable freewheels.
- Such a switchable freewheel device generally has an outer ring with a circular-cylindrical inner surface, which is provided concentrically around a polygonal-like profile of the output shaft, which is also referred to as inner star.
- the polygonal profile is integrally formed with the output shaft or rotatably connected thereto. It is also possible that the freewheel units form a portion of the output shaft in the axial direction.
- the rolling or clamping body can occupy at least two positions in the circumferential direction with respect to the inner ring having the polygonal profile and the outer ring, namely a first position in which they block a rotation of the inner ring and the outer ring to each other by between the outer ring and clamp the inner ring, and a second position in which the inner ring and the outer ring relative to each other can be freely rotated (freewheel).
- the clamping position is defined by the distance between the inner ring and the outer ring.
- the invention has for its object to provide a clamping body with which a simple trained and structured reversible sprag freewheel can be created to specify such a switchable sprag freewheel and to provide a crank CVT transmission with a simple structured sprag freewheel.
- This object is achieved by a clamping body with the features of claim 1, a reversible sprag freewheel with the features of claim 5 and a crank-CVT transmission with the features of claim 17.
- Preferred embodiments are given in the dependent claims.
- each clamping body is substantially cylindrically shaped with a lateral surface which does not correspond to a circular cross-section, but rather is shaped.
- the lateral surface has two pairs of clamping surfaces, so that in the first clamping position, which can be assumed by the clamping body, a first pair of clamping surfaces between inner ring and outer ring clamps, and in the second position, a second pair of clamping surfaces between the inner ring and outer ring stuck.
- each pair has a clamping surface to the outer ring and a clamping surface to the inner ring.
- the first and second clamping surfaces of a pair are axially symmetrical with respect to their contours in a section in a direction perpendicular to the axial direction of the clamping body to the clamping surfaces of the first and second pair are.
- An exact match of the clamping surfaces of the first and second pair is not essential. Rather, it is sufficient if the clamping areas have a corresponding or substantially similar contour in order to ensure the clamping action between the inner ring and outer ring in both the first clamping direction and the second clamping direction after the pivoting of the clamping body.
- the invention is based on the idea to use such a contoured clamping body, that both the inner ring and the outer ring need not have a special polygonal or otherwise contour, which leads to a change in distance between the inner and outer ring, but rather the clamping effect solely by the Form of the clamp body can be caused.
- the clamp body is preferably not but provided with a circular cross-section but rather so that the contour of a pair of clamping surfaces to the contour of the other pair of clamping surfaces is symmetrical in a section in a direction perpendicular to the axial direction of the clamping body exactly to an axis. This means that along the circumference of the clamp body defined clamping surface pairs are created with each defined clamping surfaces.
- the clamping body has along its axial direction one or more slotted areas, in particular recesses or grooves, which extend in the circumferential direction of the clamping body.
- a guide means which may be provided on the inner ring or the outer ring, lead the clamping body.
- the slots or grooves may be provided individually or in pairs for a respective clamping direction.
- such a guide groove or guide slot is present at least for each clamping direction. , , , ..
- the guide slot can also be present at an end region-in the axial direction of the clamp body-as a stepped or cut-out region on the end face.
- a first direction two clamping regions which are spaced apart in the axial direction and are provided for example at the first and at the second end in the axial direction of the clamping body, and provided for the second clamping direction in a central region in the axial direction of the clamping body provided groove.
- the slotted areas are offset for the first and second clamping direction with respect to their position in the circumferential direction on the clamping body.
- the switchable sprag freewheel with such a clamping body further has a cage for the clamping body, which has a cage housing part and a spring ring.
- the spring ring can be inserted radially inward into the cage housing part.
- the cage housing part is designed to be flexible and preferably has an interrupted area, on which the annular cage housing part can be bent apart and opened.
- the cage housing part is shaped, for example, as a plastic injection-molded part.
- the spring washer is made, for example, of Fe the steel is formed and is designed as a continuous ring which can be connected to the cage housing part so that it lies radially inwardly with respect to the cage housing part.
- the cage housing part has along its inner circumference preferably uniformly spaced land areas, which are arranged such that adjacent land areas each define a cylinder-like receiving space for a clamping body. Because and as the clamping body is substantially cylindrical, it can be well guided by the cage with cylindrical areas.
- the spring ring has lateral radially outwardly extending wall portions which are aligned with inserted into the cage housing part spring ring with the outer peripheral wall of the cage housing part.
- windows are provided, are inserted into the lateral projection areas of the cage housing part.
- the windows thus define an allowable relative rotation range between the cage housing part and the spring ring, so that the spring ring and the cage housing part can shift relative to one another depending on the window clearance of the sprag freewheel and depending on the projection area of the cage housing part inserted into a respective window.
- the cage housing part is guided only in the circumferential direction and is friction-free with respect to the spring ring rotatable to allow a friction-free clamping operation of the sprag freewheel.
- the two With a defined displacement or torsion angle between the spring ring and the cage housing part, the two abut each other by means of the projection areas and the window edges and a further relative movement can be avoided.
- corresponding inwardly projecting friction areas of the spring ring are provided, so that a frictional force between the two can arise, which has a damping function.
- spring elements preferably leg springs, are also mounted on the cage for rotating the clamping body in the clamping position. This can be biased by a respective corresponding leg of the leg springs, the clamp body in a first and second clamping direction.
- both the outer ring and the inner ring have circular cylindrical surfaces which are in contact with the clamping bodies.
- an adjusting device for rotating the clamping body is provided, with which the clamping body can be tilted, preferably about an axis which is substantially parallel or coincident with an axial direction of the clamping body, that between a clamping position, in which by means of the first pair of clamping surfaces is clamped, and a second clamping position in which by means of the second pair of clamping surfaces is clamped, can be switched.
- the adjusting device for example, Schlingfederringe, which are provided substantially in the circumferential direction on the inner ring and that in positions corresponding to the slots or grooves of the clamping body.
- the wrap spring rings are provided so that they can be moved between a raised position relative to the outer peripheral surface of the inner ring and a position aligned with this outer circumference in dependence on the desired clamping direction. If at least one groove or a slotted region is provided on the clamping body for each of the clamping directions, at least one loop spring ring is correspondingly provided for each of the directions.
- the wrap spring rings for different clamping directions can be moved coordinated with each other, that their positions are mutually opposite depending on the desired clamping direction. To lower the Schlingfederringe in the inner ring this can be provided with grooves along its circumference, in which the Schlingfederringe come to rest. can
- the areas of larger and smaller diameter along its axial direction and along these areas with the Schlingfederringen from the inside can come into abutment.
- the axial contact position of the adjusting spindles can be changed to a respective Schlingfederring, and thus the Schlingfederring, when in contact with a region of larger diameter Adjusting spindles, are brought into the raised position, or it allows to penetrate into the inner ring, ie a groove provided, and at least to be aligned with this. If they are raised with respect to the inner ring, so if the Schlingfederringe rest on the area of larger diameter of the adjusting spindles, they serve as a tilt stop for the clamp body.
- the wrap rings are preferably biased inwardly such that they do not rise at maximum speed and thus undesirably move from the lowered position to a raised position.
- helical transition areas are provided between the small diameter and large diameter areas on the adjusting spindles, which have the same pitch as the thread on the adjusting spindle, so that a smooth transition between the different positions, namely the raised position and the lowered position of the Slings can be provided.
- a plurality of adjusting spindles are provided along the circumference of the inner ring, which are uniformly rotated by a common threaded mechanism.
- the areas of large and small diameter of the adjusting spindles are provided such that three positions for the Schlingfederringe provided on the inner ring can be achieved, namely a forward position in which only those Schlingfederringe are raised with respect to the inner ring, the Holding the clamp body in a forward position, a second position in which only the other wrap rings are held in the raised position, and a third position where all wrap rings are in the lowered position that can serve as the mounting and towing positions.
- Figure 1 shows a schematic view of an embodiment of a clamping body in a gap between an inner ring and an outer ring of a sprag freewheel in a first clamping position and a second clamping position from the front;
- Figure 2 shows in perspective view a cage housing part
- FIG 3 shows an enlarged section of the cage housing part shown in Figure 2;
- Figure 4 shows a spring ring for a sprag freewheel in a perspective view
- Figure 5 shows the cage housing part with spring ring in a perspective view
- Figure 6 shows an assembly of spring ring, sprags and torsion springs in a perspective view
- Figure 7 shows an assembly according to Figure 6 in a perspective view with attached cage housing part
- Figure 8 shows a section in a direction perpendicular to the axial direction of the sprag freewheel in a first clamping position
- Figure 9 is a view corresponding to Figure 8 in a second clamping position
- Figure 10 is a perspective, schematic view of a clamping body on the inner ring with Schlingfederringen
- Figure 11 is a perspective view similar to Figure 10 with the clamp body held in the opposite clamping direction to Figure 10;
- Figure 12 is a schematic perspective view of an assembly of adjusting spindles and wrap springs
- Figure 13 is a view of a portion of the inner ring with an inserted adjusting spindle in a sectional view
- Figure 14 is a perspective view of an inner ring with slots for the wrap spring and bores for the support spindles;
- Figure 15 is a perspective view of an assembly of inner ring, wrap springs and adjusting spindles and a Verstellisserad;
- FIGS. 17A 1 shows a perspective view of an adjusting spindle
- B, C are sectional views along the axial direction through the inner ring with inserted adjusting spindles in different Verstellspindelpositionen.
- FIG. 1 shows, in a schematic view, a clamping body 10 which lies in a clamping gap 20 between an inner ring 22 and an outer ring 24.
- the clamp body 10 is shown in FIG. 1 on the left in a first clamping position and in FIG. 1 on the right in a second clamping position, wherein, of course, in the case of a clamp body freewheel, all clamp bodies are always in the same clamping position and this view serves only for explanatory purposes.
- the clamping body 10 is designed as a substantially cylindrical body, wherein the axis of the cylinder is perpendicular to the plane in Figure 1. It has along the circumference of its lateral surface 11, a first pair of clamping surfaces 12, 13 and a second pair of clamping surfaces 14, 15, wherein each one of the clamping surfaces 12, 14 of a pair is suitable with the outer ring 24 to reach in clamping system and the other of the clamping surface 13, 15 of the pair is adapted to come with the inner ring 22 in clamping system.
- For clamping the clamping body in the gap 20 between the inner ring 22 and the outer ring 24 are each both clamping surfaces 12, 13 and 14, 15 of a pair at the same time in clamping system.
- All clamping surfaces extend substantially over the entire axial length of the cylindrical clamp body 10, however, as shown in Figure 1, Figure 10 and Figure 11 can be removed, cut or slotted areas as cutouts 16, 17 or grooves 18 (see Figure 10) at defined Positions in the axial direction of the clamp body 10 may be provided.
- the clamping surfaces 12, 13, 14, 15 are arranged in the circumferential direction around the clamping body 10 so that the two clamping surfaces 12, 14 for the clamping contact with the outer ring and the two clamping surfaces 13, 15 are adjacent to each other for the clamping contact with the inner ring and between each of the clamping surfaces 13, 15 to the inner ring 22 and the clamping surfaces 12, 14 to the outer ring 24 in the radial direction of the clamping body 10 a symmetry axis S extends, which is an axis of symmetry S for the contour of the clamping surfaces 12, 13, 14, 15, so that the clamping surfaces 12, 13 of a pair are axisymmetric to the clamping surfaces 14, 15 of the other pair with respect to the axis of symmetry S.
- the clamping body 10 In order to transfer the clamping body 10 from the first clamping position (shown on the left in FIG. 1) into the second clamping position (shown on the right in FIG. 1), the clamping body 10 must thus be pivoted such that the axis of symmetry S is pivoted through an angle which causes the clamping body 10 to pivot Is twice an angle defined between the symmetry axis S in a first clamping position and a perpendicular to the inner ring.
- FIGS. 2 to 7 show a cage 30 ( Figure 6) for a sprag freewheel and its components and assemblies each in a perspective view and a finished freewheel assembly 50, in which the clamping body 10 are inserted into the cage 30 ( Figure 7).
- FIGS. 8 and 9 show the finished freewheel arrangement 50, each in cross-sectional view, in a cross-section perpendicular to the axial direction.
- the cage 30 illustrated in FIG. 6 is formed from a cage housing part 32 (see FIGS. 2 and 3) and a spring ring 40 (see FIG. 4) and leg springs 31.
- the cage housing part 32 is formed as a flexible plastic ring, for example by injection molding.
- the plastic ring is interrupted at a position in the circumferential direction (see reference numeral 33 in Figure 3), so that it can be bent up for mounting the spring ring 40 in it and can be used by snapping the cage housing part 32 of the spring rings 40.
- the cage housing part 32 further comprises web elements 34 spaced uniformly in the circumferential direction on its inner surface and extending over substantially the entire axial length of the plastic housing part 32.
- Cylindrical receiving areas 35 are formed between the web elements 34, into each of which a clamping body 10 can be introduced.
- the cylindrical recesses or receiving areas 35 are open to the outside of the plastic housing part 32 by recesses 36, so that the clamping body 10 can pass through the recesses 36 into contact with the outer ring 24.
- To the inner ring 22 no wall is provided.
- the shaped by the web members 34 cylindrical receiving portions 35 serve to guide the clamp body 10 well.
- projections 37 are mounted on both end faces (ends in the axial direction) of the plastic housing part 32, in particular on its web elements 34, which can engage in corresponding windows 47 on the spring ring 40.
- the spring ring 40 is designed as an annular body having at its end faces radially outwardly elevating wall portions 41.
- the wall portions 41 are provided with the windows 47, which are equally spaced in the circumferential direction and in which the projections 37 of the plastic housing part 32 can engage.
- the windows 47 are longer in their circumferential direction than the projections 37, so that the plastic housing part 32 with respect to the spring ring 40 a certain angular range can be moved before the projection 37 comes into contact with an edge of the window 47.
- the spring ring 40, the cage housing part 32 lead in the circumferential direction and the two components are friction-rotatable to each other, but the angle of rotation is limited by the stop of the projection 37 at the window edges.
- FIG. 5 shows the arrangement of spring ring 40 and cage housing part 32 in the assembled state.
- Figure 6 shows a perspective view of an assembly of spring washer 40, sprags 10 and leg springs 31 mounted on spring washer 40, e.g. by being positively guided, and preloading the clamp body 10 in the circumferential direction.
- the cage 30 each clamp body 10 associated leg springs 31 which preload the clamp body 10 in the clamping position (see also Figures 8 and 9, Figure 8 shows the freewheel assembly 50 in a clamping position for a first circumferential direction and 9 shows the freewheel arrangement 50 in a clamping position for a second circumferential direction, for illustration purposes the cage housing part 32 has been omitted in FIG. 6.
- the finished cage 30 with clamping body 10 is shown in FIG.
- Figure 8 shows the situation in which the clamping body 10 block by means of their clamping surfaces 12 and 13, a rotation of the inner ring 22 and the outer ring 24 to each other in a first relative direction of rotation.
- Figure 9 shows the case in which the clamping surfaces 14, 15 block the rotation of the inner ring 22 and outer ring 24 to each other in a second direction of relative rotation.
- stops 60, 61 are formed by the slotted areas, namely the cutouts 16, 17 and the groove 18 on the clamping bodies, against which the clamping body 10 in against the inner ring 22 provided Schlingfederringe 62, 63 can reach.
- slotted areas 16, 17, 18 are provided for each clamping body 10, wherein the cutouts 16 and 17 are provided on the respective end sides of the clamping body 10 and the groove 18 is substantially at the center is provided in the axial direction of the clamp body 10. Furthermore, the slotted area 18 on the one hand and the slotted areas 16, 17 on the other hand are offset from one another in the circumferential direction.
- a corresponding number of Schlingfederringen 62, 63 are also provided at a corresponding distance in the axial direction.
- the Schlingfederringe 62, 63 are actuated in opposite directions by an adjusting device described later, so that either the Schlingfederringe 62 are raised with respect to a lateral surface of the inner ring 22 (shown in Figures 8 and 10 situation) or the Schlingfederring 63 with respect to the lateral surface of the inner ring 22 is raised ( in Figs. 9 and 11).
- Figures 8 and 9 each show a section perpendicular to the axial direction of the freewheel 50 in a position corresponding to the Schlingfederring 63 and thus the middle slotted portion 18 of the clamp body 10.
- FIGS. 8 and 9 it is to be understood that the clamping bodies 10 are always in contact with the lateral surface of the inner ring 22 and the wrap spring 63 is shown enlarged for illustrative purposes.
- groove-shaped recesses 23 are provided in the lateral surface of the inner ring.
- the Schlingfederringe 62, 63 can be lowered so that its outer peripheral surface with the lateral surface of the inner ring 22 is aligned.
- the aligned position of the wrap spring ring 63 with the lateral surface of the inner ring 22 can be seen in FIG.
- the raised position of the wrap spring ring 63 is shown with respect to the lateral surface of the inner ring 22.
- the adjusting device 70 for the tilting position of the clamping body 10 will be described with reference to Figures 12 to 17, wherein the adjustment by means of a raising or lowering kens the wrap spring rings 62, 63 takes place.
- an adjusting spindle 80 can be used, the slidable and rotatable in the axial direction.
- common adjusting spindles 80 can be used for a plurality of freewheel units 50 arranged one behind the other in the axial direction.
- the adjusting spindles 80 are respectively mounted in the inner ring 22 via a threaded mechanism 81, wherein the adjusting spindles 80 have an external thread 83 and an internal thread 82 is provided in the bores of the inner ring 22. If the adjusting spindles 80 are twisted, they are moved in the axial direction of the freewheel correspondingly and in dependence on the thread pitch of the threaded mechanism 81 (right / left direction in FIG. 17).
- adjusting spindles 80 To rotate the adjusting spindles 80, these have at one of their axial ends a toothing 84 (see FIG. 16) which meshes with a toothed wheel or ring gear 85 which is provided at one of the axial ends of the clamping body freewheel. As can be seen in FIG. 12, a common ring gear 85 is provided for all adjusting spindles 80, which meshes with the respective toothings 84 of the adjusting spindles 80.
- the adjusting spindles 80 have, along their axial direction, cylindrical, in particular circular-cylindrical, regions of large diameter 86 and cylindrical, in particular circular-cylindrical, regions of small diameter 87. Between the large diameter regions 86 and the small diameter regions 87, there are formed transition regions 88 which are helically shaped and have the same pitch as the threaded mechanism 82 between the spindle 80 and the inner ring 22.
- either the wrap spring rings 62 or the wrap spring ring 63 or none can be brought into abutment against the areas of large diameter 86 of the adjusting spindles 80.
- Those Schlingfederringe 62, 63, which are in abutment against the areas of large diameter 86 of Verstellspindeln 80 are forced to a larger diameter and are in the radial direction outwardly with respect to the lateral surface of the inner ring 22 before (in Figure 13, the wrap springs 63).
- the wrap springs 62 are taken in Figure 13 in the groove-shaped recesses 23 of the inner ring 22 so that its outer periphery is aligned with the outer surface of the inner ring 22.
- FIGS. 17A, 17B and 17C Upon an adjustment of the adjusting spindle 80 and a forced movement of the Schlingfederringe 62, 63 out of the groove-shaped recess 23 out or in this reach the stops 60, 61 on the clamping bodies selectively in or out of engagement with the Schlingfederringen, causing a tilting the clamping body 10 leads in one or the other clamping direction.
- the various positions are shown in FIGS. 17A, 17B and 17C, wherein the situation is shown in FIG.
- FIG. 17A in which the wrap spring rings 62 are raised and the wrap spring rings 63 are lowered in the corresponding groove-shaped regions 23 of the inner ring 22, so that the clamping bodies 10 be held in a first clamping direction between the outer ring 24 and the inner ring 22 (for example, according to a forward direction of travel of a vehicle with a crank-CVT transmission using the sprag free-wheel assemblies 50 according to the invention).
- Figure 17B shows the situation in which all Schlingfederringe 62, 63 are in abutment against the areas of small diameter 87 of the adjusting shaft 80, so that the Schlingfederringe 62, 63 are all included in the corresponding groove-shaped portion 23 in the inner ring 22 and with the lateral surface of the Inner ring are aligned.
- FIG. 17C shows the situation in which the wrap spring rings 63 are raised and the wrap spring rings 62 are countersunk, which corresponds to a position in which force can be transmitted in the opposite direction of rotation from the outer ring 24 to the inner ring 22.
- the Schlingfederringe 62, 63 are biased inwardly, so that they are preloaded on the one hand in the recorded position in the inner ring 22 and on the other hand not move by centrifugal force or at maximum speed of the inner ring to the outside.
- Section 86 Large diameter section
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011519024A JP5559167B2 (en) | 2008-07-21 | 2009-06-29 | Fastening body for switchable fastening body-type freewheel, switchable fastening body-type freewheel and crank CVT transmission |
DE112009001522T DE112009001522A5 (en) | 2008-07-21 | 2009-06-29 | Clamp body for a switchable sprag freewheel, reversible sprag clutch and crank-CVT transmission |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008033971.7 | 2008-07-21 | ||
DE102008033971 | 2008-07-21 |
Publications (1)
Publication Number | Publication Date |
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WO2010009691A1 true WO2010009691A1 (en) | 2010-01-28 |
Family
ID=41203859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2009/000895 WO2010009691A1 (en) | 2008-07-21 | 2009-06-29 | Clamping body for a switchable clamping body freewheel, switchable clamping body freewheel and crank-cvt transmission |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP5559167B2 (en) |
DE (2) | DE112009001522A5 (en) |
WO (1) | WO2010009691A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102016204971A1 (en) * | 2016-03-24 | 2017-09-28 | Robert Bosch Gmbh | Spring ring, and an electric machine including such, as well as a method for producing an electrical machine |
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DE102007015104A1 (en) * | 2007-03-29 | 2008-10-02 | Borg Warner Inc., Auburn Hills | Clutch device for transmitting torque between engine output shaft and clutch input shaft, has free-wheel arrangement with free-wheels that have inner and outer rings formed of one-piece with shafts |
DE102007022148A1 (en) * | 2007-05-11 | 2008-11-13 | Schaeffler Kg | Freewheeling clamp body |
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JPH0586043U (en) * | 1991-10-16 | 1993-11-19 | 株式会社フジユニバンス | One way clutch |
JPH06280897A (en) * | 1993-03-25 | 1994-10-07 | Aichi Mach Ind Co Ltd | Two-way differential clutch |
JPH06346929A (en) * | 1993-06-10 | 1994-12-20 | Ntn Corp | Bidirectional clutch |
DE102004028669A1 (en) * | 2004-06-12 | 2005-12-29 | Ina-Schaeffler Kg | Overrunning clutch |
ATE426761T1 (en) * | 2004-10-22 | 2009-04-15 | Luk Lamellen & Kupplungsbau | DRIVE ARRANGEMENT |
-
2009
- 2009-06-29 WO PCT/DE2009/000895 patent/WO2010009691A1/en active Application Filing
- 2009-06-29 JP JP2011519024A patent/JP5559167B2/en not_active Expired - Fee Related
- 2009-06-29 DE DE112009001522T patent/DE112009001522A5/en not_active Withdrawn
- 2009-06-29 DE DE102009030980A patent/DE102009030980A1/en not_active Withdrawn
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US4089395A (en) * | 1976-10-21 | 1978-05-16 | Borg-Warner Corporation | Direction-sensitive overrunning clutch |
US5529158A (en) * | 1993-06-10 | 1996-06-25 | Ntn Corporation | Hub clutch device |
WO2004111483A1 (en) * | 2003-06-17 | 2004-12-23 | Ina-Schaeffler Kg | Clamping body free-wheel device for coupling in both directions of rotation |
DE102007015104A1 (en) * | 2007-03-29 | 2008-10-02 | Borg Warner Inc., Auburn Hills | Clutch device for transmitting torque between engine output shaft and clutch input shaft, has free-wheel arrangement with free-wheels that have inner and outer rings formed of one-piece with shafts |
DE102007022148A1 (en) * | 2007-05-11 | 2008-11-13 | Schaeffler Kg | Freewheeling clamp body |
Also Published As
Publication number | Publication date |
---|---|
JP2011528773A (en) | 2011-11-24 |
JP5559167B2 (en) | 2014-07-23 |
DE112009001522A5 (en) | 2011-04-07 |
DE102009030980A1 (en) | 2010-01-28 |
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