Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62D—MOTOR VEHICLES; TRAILERS
  • B62D5/00—Power-assisted or power-driven steering
  • B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
  • B62D5/0409—Electric motor acting on the steering column
• • 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
  • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
  • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
  • F16C23/06—Ball or roller bearings
  • F16C23/08—Ball or roller bearings self-adjusting
• • 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
  • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
  • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
  • F16C27/06—Elastic or yielding bearings or bearing supports, for exclusively rotary movement by means of parts of rubber or like materials
  • F16C27/066—Ball or roller bearings
• • 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
  • F16H—GEARING
  • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
  • F16H55/02—Toothed members; Worms
  • F16H55/22—Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears
  • F16H55/24—Special devices for taking up backlash
• • 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
  • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
  • F16C2326/00—Articles relating to transporting
  • F16C2326/20—Land vehicles
  • F16C2326/24—Steering systems, e.g. steering rods or columns

Definitions

• the invention relates to a steering gear for a steering system of a motor vehicle and a steering system with such a steering gear.
• the steering system may in particular be a power steering system.
• the known power steering systems are based on a steering gear that the
• Translated drive power of a hydraulic or electric steering motor and transmits, for example, the steering column.
• Such steering gears are regularly in the form of a fferkylzgetriebes and in particular as fferradgetriebe or as a worm gear.
• These include a gear which is directly or indirectly connected to the steering column, as well as a meshing therewith, via a shaft driven by the steering motor pinion.
• Gear elements formed due to wear and / or due to a setting of the material in gears made of plastic. Especially with a
• the pinion shaft is pivotally mounted about an axis which is perpendicular to the longitudinal axis of the pinion shaft and at a distance from the meshing engagement of pinion and gear, and is pressed by means of one or more spring elements against the gear , The pivoting of the pinion shaft is doing regularly in one of the two
• This storage is referred to as a fixed bearing.
• the storage in the region of the other end is then carried out with a defined mobility (so-called floating bearing) in order to allow the deflection associated with such a pivoting movement.
• Fixed bearing may in particular be provided on the drive side, while the floating bearing is provided at the free end of the pinion shaft.
• the one or more spring elements for Pressing the pinion to the gear can be integrated both in the movable bearing and in the fixed bearing.
• Such a steering gear in which the spring force is generated for springing by means of the fixed bearing, is known for example from DE 10 2008 040 673 A1 and EP 2 836 417 B1.
• a steering gear, in which the spring force for the springing, however, is generated in the area of the floating bearing is, for example, from
• Pivot axis must be given in a defined minimum, the so-called basic game, to avoid the pinion shaft due to temperature-induced strains, due to changes in geometry made of plastic elements of the steering gear, in particular the gear and / or the pinion shaft, due to water absorption and as a result of To allow runout of the gear and / or the pinion shaft.
• the basic game must be limited, since then when using the pinion shaft, a drive power is transmitted from a steering motor to the gear, the spring-loaded pinion shaft is pivoted due to the toothing forces in the direction of increasing distance from the gear until an end stop for this pivotal movement, the can be formed in particular from the floating bearing of the steering gear is reached.
• dimensioned basic play increases in the course of use due to wear as well as due to settling, i. due to a plastic deformation due to a permanent load, the elements of the steering gear, in particular in their design made of plastics). Even production-related shape and position tolerances can lead to an increase in the basic game. This results in that when dimensioning the springing for the pinion shaft, which also takes into account a presumably given at the end of a scheduled service life of the steering gear basic game, even then should be given a sufficiently strong springing, the spring load in the new condition of the steering gear chosen so large must be that an undesirably high friction occurs in the toothing.
• Floating sleeve with a guide element and the guide element with a holding element which is for fixed integration within a housing of the
• Steering gear is provided, such interaction that the floating bearing sleeve in a first direction, which is radial with respect to the longitudinal axis of the floating bearing sleeve and also perpendicular to that of the fixed bearing (according to those from DE 10 2008 040 673 A1 and EP 2,836,417 B1 are formed) trained pivot axis is aligned relative to the holding element is movable when the fferritzelwelle is not loaded with a torque, while such relative movement is prevented when the fferritzelwelle with a
• Torque is loaded by then the floating bearing sleeve in a second direction, which is also radially aligned with respect to the longitudinal axis of the floating bearing sleeve and also perpendicular to the first direction is moved relative to the holding element, whereby the guide element in a guide opening of the holding element or the
• Screw pinion shaft is limited or prevented by the actual pivot axis. Accordingly, by the interaction of the guide element and the guide opening a clamping acting stop for the
• Pivoting movement about the second axis over the useful life of the steering gear is substantially constant. Practically, due to the springing of the
• the invention therefore an object of the invention to provide an improved fixed bearing for a steering gear of a motor vehicle that in particular advantageously with a floating bearing, as in the German patent application
• An inventive steering gear for a steering system of a motor vehicle comprises at least one housing, a gear, a pinion meshing with the gear, in particular screw pinion, and a pinion shaft comprising the pinion.
• Pinion shaft is mounted on one side of the pinion in a fixed bearing
• the one Swivel bearing preferably a rolling bearing, particularly preferably a ball bearing
• the pivot itself is in one
• the fixed bearing further comprises a pivot ring which has an outer ring and an inner ring, which are connected to one another via one or more torsion bars pivotally about a defined by the torsion bars or the pivot axis, wherein the inner ring is received in the bearing sleeve and the outer ring within the housing, in particular directly or indirectly in or on the housing is stored. It is provided that the outer ring of the pivot ring is rotatably mounted about a transversely and in particular perpendicular to the pivot axis axis of rotation within the housing.
• the pinion shaft is mounted on the other side of the pinion in a floating bearing, which comprises a pivot bearing (preferably a rolling bearing, particularly preferably a ball bearing) having an inner bearing ring in which the SSritzelwelle is received, and an outer Bearing ring in one
• a pivot bearing preferably a rolling bearing, particularly preferably a ball bearing
• Non-bearing sleeve integrated i.e., incorporated therein or formed by the floating bearing sleeve itself), wherein the floating bearing sleeve with a (preferably
• the fixed integration of the retaining element in the housing of the steering gear can preferably be effected in that the holding element of the housing itself formed or directly connected to the housing (for example screwed or otherwise non-positively and / or positively and / or
• an inventive steering gear can be advantageously combined with differently designed movable bearings.
• the term "longitudinal axis” is understood to mean that axis of a body or of a cavity which extends along the greatest longitudinal extent of the body
• Body / cavity runs and thereby the geometric centers of
• the outer ring of the pivot ring itself forms two preferably cylindrical bearing pin or two preferably cylindrical bearing mounts whose coaxially aligned longitudinal axes correspond to the axis of rotation.
• the outer ring of the pivot ring is preferably secured against rotation and
• bearing bush of the floating bearing.
• This bearing bush can then form two preferably cylindrical bearing journals or two preferably cylindrical bearing mounts whose coaxially aligned longitudinal axes correspond to the axis of rotation.
• the bearing journals can furthermore preferably be rotatably received in each case within a preferably cylindrical bearing receptacle of the housing itself or one bearing journal of the housing is rotatably received in the bearing receptacles of the outer ring or the bearing bushing, whereby a structurally simple and in particular compact design for a steering gear according to the invention can be realized can.
• an indirect (rotatable) mounting of the bearing device with respect to the axis of rotation can be provided within the housing by
• bearing journals are each rotatably received in a bearing receptacle of another component, which in turn is preferably immovably mounted within the housing.
• Steering gear according to the invention can be provided that the outer ring of the pivot ring and / or the bearing bush a tubular portion
• the journals may be particularly preferably received as separate components in each case in an opening or recess of the tubular portion, which may result in an advantageous manufacturability for such an inventive steering gear.
• the journals can be glued, welded or soldered in particular within the opening or depression of the tubular portion.
• Anti-rotation which ensures against rotation of the bearing bush relative to the outer ring of the swivel ring, be realized in an advantageous manner by the fact that the outer ring of the swivel ring forms at least one projection which engages in a recess of the bearing bush.
• the one or more projections of the outer ring of the swivel ring can further preferably engage in recesses of the bearing bush, which are formed (respectively) within one of the bearing journals.
• the one- or multi-part bearing bush made of one or more plastics (preferably fiber reinforced, in particular with a fiber filling of 30% to 50%) and then in particular as an injection molding, optionally as a multi-component injection molded part , or of one or more metals, in particular light metal (s), preferably aluminum, then in particular as a die-cast part, is formed.
• plastics preferably fiber reinforced, in particular with a fiber filling of 30% to 50%
• metals in particular light metal (s), preferably aluminum, then in particular as a die-cast part
• the swiveling ring can preferably be made of metal, in particular of
• steering gear movable bearing can be formed both as a one-sided open guide channel (i.e., as a guide groove) as well as in the circumferential direction completely closed guide opening.
• the floating bearing sleeve with the guide element (preferably directly) is connected (at least such that a relative movement in the direction of the longitudinal axis of the guide member and tilting about an axis parallel to the longitudinal axis of the floating bearing sleeve axis is prevented, preferably a completely immovable connection is provided) and a from the longitudinal axis of the floating bearing sleeve radially spaced portion of the guide element in a extending in a radial direction with respect to the longitudinal axis of the floating bearing sleeve
• the guide element is connected to the holding element and at least one radially spaced from the longitudinal axis of the floating bearing portion of the
• Guiding element in at least one in a radial direction with respect to the longitudinal axis of the floating bearing sleeve extending guide opening of the floating bearing sleeve (or an element connected to the floating bearing sleeve element) is guided axially movable.
• the guide element can be immovably connected on the one hand with the holding element, in which case, as in the embodiment according to the first alternative, the tilting of the guide element in the guide opening is realized in that the guide element is connected to the holding element decentralized with respect to the longitudinal axis of the floating bearing sleeve or cooperates.
• the guide element can also pivotable (at least about an axis, preferably parallel to the
• Guiding opening to ensure a load of the screw pinion shaft with a torque can preferably be achieved in a steering gear according to the invention in that it is at least rotationally fixed and in particular integrally formed with the bearing sleeve for the fixed bearing of the steering gear.
• the pivotable connection between the guide element and the holding element can be based both on a rotary joint and on an elastic deformation (for example of the guide element).
• the longitudinal axis of the guide element preferably encompassed by a steering gear according to the invention, provision can be made for the longitudinal axis of the guide element to be radial with respect to the longitudinal axis of the guide element
• Steering motor is driven, essentially the same size.
• the invention also relates to a steering system which has at least one
• steering gear and a rotationally driving connected to the pinion shaft steering motor comprises.
• the gear of the steering gear can also be rotatably or rotationally drivingly connected to a steering shaft, in particular a steering column, the steering system.
• the steering system according to the invention can be designed in particular as a power steering system, by means of the steering motor, a supporting torque can be generated so that one of a driver of a power steering system comprehensive motor vehicle on the steering column for steering the motor vehicle to be applied steering torque (possibly temporarily up to zero) is reduced.
• the invention relates to a motor vehicle with a steering system according to the invention.
• the indefinite articles (a”, “an”, “an” and “an), in particular in the patent claims and in the claims generally explaining
• FIG. 1 shows a longitudinal section through an inventive steering gear according to a first embodiment
• Fig. 2 a storage device of a fixed bearing and a pinion shaft of
• FIG. 3 shows the bearing device and the pinion shaft according to FIG. 2 in a front view
• Fig. 4 a pivot ring of the bearing device according to FIGS. 2 and 3 in one
• FIG. 5 is a perspective view of a bearing device for a fixed bearing of a steering gear according to the invention according to a second
• FIG. 6 shows the bearing device according to FIG. 5 in a view from the front
• Fig. 1 shows the essential components of an inventive
• Steering gear This comprises a housing 1, within which a gear 2 and a meshing with the gear 2 pinion 3 are rotatably arranged in the form of a fferritzels.
• the pinion 3 and the pinion 3 comprehensive (screw) pinion shaft 4 are integrally formed in the form of a worm.
• the gear 2 is fixedly mounted on an output shaft 5 of the steering gear.
• This output shaft 5, which has a toothing for a secure rotationally fixed connection with the gear 2 in the illustrated embodiment, for example, with a trained at least in one section as a rack handlebar, whereby the rack performs a translational movement in a known manner via Radlenkhebel ( not shown) in a pivoting movement of steerable wheels (not shown) of the motor vehicle can be translated.
• the output shaft 5 may also be a steering column of a power steering system, which is connected to a steering wheel and a steering pinion on the
• Handlebar acts.
• the pinion shaft 4 has a drive-side end over which this with the
• Output shaft of a steering motor (not shown, for example, an electric or
• Hydraulic motor is connectable.
• the pinion shaft 4 is mounted in the housing 1 by means of a first bearing.
• Bearing is designed as a fixed bearing 6, which allows a pivoting of the pinion shaft 4 about a pivot axis 7 (see Fig. 2 to 4).
• This pivot axis 7 extends in FIG. 1 perpendicular to the plane of the drawing.
• Such a pivoting causes a deflection of the drive-side end opposite end of the pinion shaft 4, which is mounted there by means of a movable bearing 8 within the housing 1.
• This floating bearing 8 is designed so that it allows the resulting from the pivoting of the pinion shaft 4 deflection of this end of the pinion shaft 4.
• Both the fixed bearing 6 and the movable bearing 8 each comprise a rotary bearing 9 in the form of a ball bearing.
• inner bearing rings 10 of this pivot bearing 9 the corresponding portions of the pinion shaft 4 are supported, while outer bearing rings 11 of the pivot bearing 9 are mounted in a respective bearing device 12, 13, which are in turn received within the housing 1.
• the storage devices 12, 13 are structurally designed so that in the case of the fixed bearing 6 u.a. the pivoting of the pinion shaft 4 about the pivot axis 7 and in the case of the movable bearing 8 allow the deflection of the free end of the pinion shaft 4.
• the bearing device 12 of the fixed bearing 6 comprises a bearing sleeve 14 with annular cross-sections, the inner side in a first longitudinal section, the associated pivot bearing 9 and in a second longitudinal section 16 receives an inner ring 16 of a pivot ring.
• This inner ring 16 of the pivot ring 15 and the outer bearing ring 1 1 of the pivot bearing 9 of the fixed bearing 6 are interposed an annular disc 17 secured axially supported within the fixed bearing sleeve 14, wherein the inner ring 16 of the pivot ring 15 with the interposition of the annular disc
• the swivel ring 15 comprises, in addition to the inner ring 16, an outer ring 19.
• This outer ring 19 is connected to the inner ring 16 via two torsion webs 20 (compare FIGS. 3 and 4).
• the outer ring 19, the inner ring 16 and the torsion bars 20 are integrally formed from, for example, spring steel.
• the two torsion bars 20 define the position of the pivot axis 7, about which the outer ring 19 is pivotable relative to the inner ring 16 of the pivot ring 15.
• the torsion bars 20 of the pivot ring 15 not only allow pivoting of the outer ring 19 to the inner ring 16 and thus the pinion shaft 4 relative to the gear 2 and to the housing 1, but at the same time cause the spring force by which the pinion 3 in the toothing of the Gear 2 is pressed in order to achieve the lowest possible backlash and thus the lowest possible noise during operation of the steering gear, especially in a Komlenken.
• Housing 1 rotatably mounted.
• the longitudinal axes 26 of the position pins 25 thereby correspond to an axis of rotation 28 about which the outer ring 19 of the pivot ring 15 and thus the entire bearing device 12 of the fixed bearing 6 and the bearing therein
• Pinion shaft 4 in narrow limits, which are defined by the floating bearing 8, are pivotable.
• This rotation axis 28 intersects not only the pivot axis 7 but also the longitudinal or rotation axis 29 of the pinion shaft 4. Unlike a pivoting of the pinion shaft 4 about the pivot axis 7 pivoting about the rotation axis 28 does not lead to an elastic restoring moment.
• Bearing bush 23 is formed of aluminum and two split along a radial plane halves, which are assembled after insertion of the outer ring 19 of the pivot ring 15 and at least by fixing the bearing pin 25 in the bearing mounts of the housing 1 are fixed in position to each other.
• the bearing device 13 of the movable bearing 8 comprises a floating bearing sleeve 31 with an annular cross-sectional area.
• Floating sleeve 31 is also designed as a ball bearing pivot bearing 9 is arranged, wherein the outer side of the outer bearing ring 1 1 of this pivot bearing 9 is in direct contact with the inside of the floating bearing sleeve 31. In a second longitudinal section of the floating bearing sleeve 31 and thus axially from the pivot bearing. 9
• a retaining ring 32 is arranged, which forms a shell opening, within which one end of a guide member 33 is arranged fixed.
• This guide element 33 extends outward from the retaining ring 32 in the radial direction, wherein it protrudes through a defined by oversize through hole in the floating bearing sleeve 30. In this case, the guide element 33 protrudes into a guide opening 34, which is formed by a holding element 35 immovably connected to the housing 1.
• the longitudinal axis 36 of the guide element 33 is aligned radially with respect to the longitudinal axis 29 of the floating bearing sleeve 31 and thus intersects it, wherein at the same time a substantially vertical orientation is provided.
• Guide opening 34 is aligned parallel to the longitudinal axis 36 of the guide member 33 at unloaded steering gear. Furthermore, the opening cross-section or the diameter of the guide opening 34 is defined, albeit to a lesser extent, larger than the cross-sectional area or the diameter of the portion of the guide element 33 received therein, whereby u.a. an axial displaceability of the guide element 33 within the guide opening 34 is possible. As a result of this displaceability allows the movable bearing 8 in principle pivoting of the pinion shaft 4 about the fixed bearing 6 formed by the pivot axis 7, which extends as exactly as possible perpendicular (but spaced) to the longitudinal axis 36 of the guide member 33 of the floating bearing 8.
• Pivotility of the pinion shaft 4 structurally largely can be dimensioned accurately and is substantially independent of the state of wear of the steering gear and possibly also the subsidence of the fferritzels 3 and the gear 2, due to the design of the floating bearing 8 a
• Pinion shaft 4 about the pivot axis 7 during operation of the steering gear through the
• the floating bearing 8 thus causes in principle and during the entire service life of the steering gear largely or completely prevented pivoting of the pinion shaft 4 about the pivot axis 7, provided that the pinion shaft 4 is loaded during operation of the steering gear with a torque, so that a minimal
• Geometry changes due to a water absorption in plastic elements are always compensated when the pinion shaft 4 is not loaded with a torque (ie when the steering system of the motor vehicle does not perform steering movement), because then by the floating bearing 8, a pivoting of the pinion shaft 4 about the pivot axis 7 is possible. Thereby, an undesirably high friction in particular of the toothing, which is formed between the screw pinion 3 and the gear 2, can be avoided.
• the steering gear further comprises a connecting element 37, which the
• Fixed bearing sleeve 14 connects to the floating bearing sleeve 31 and this is integrally formed and the same material with the bearing sleeves 14, 31.
• the connecting element 37 is tubular with annular or part-circular cross-sections, this having a jacket opening 38 which is arranged in a central portion of the connecting element 37 and which extends over a portion of its circumference extends.
• Connecting member 37 prevents relative rotation between the fixed bearing sleeve 14 and the floating bearing sleeve 31 about the longitudinal axes 29.
• 5 to 8 show an alternative embodiment of a bearing device 12 for a fixed bearing 6 of a steering gear according to the invention, in particular a steering gear, as it is otherwise shown in FIG. 1.
• the bearing device 12 in turn comprises a bearing sleeve 14, wherein within the bearing sleeve 14 a pivot bearing 9 in the form of a ball bearing, an inner ring 16 of a pivot ring 15 and a support plate 39 are arranged.
• the inner ring 16 of the pivot ring 15 is in turn connected via two torsion bars 20, which extend through corresponding through holes 40 of the bearing sleeve 14, with an outer ring 19 of the pivot ring 15.
• the outer ring 19 of the pivot ring 15 is cup-shaped and thus comprises a radially extending portion 41 and an axially extending, tubular portion 42 with an annular cross-section.
• the tubular portion 42 extends from the side facing away from the pivot bearing 9 side of the radially extending portion 41 of the outer ring 16 of the pivot ring 15. In the region of the tubular portion 42, the wall of the outer ring 16 of the pivot ring 15 forms two diametrically opposed through holes, in each case one
• Bearing pin 25 is received fixed.
• the bearing journals 25 project beyond the outer side of the wall of the outer ring 16 of the swivel ring 15. It is provided that the trunnions 25 with these sections are designed accordingly
• the bearing device 12 To produce the bearing device 12 according to FIGS. 5 to 8, it is provided to provide a tubular workpiece for forming the fixed bearing sleeve 14 and to form a first axial stop, specifically the abutment adjacent to the rotary bearing 9, by forming a first end section of the workpiece that this end portion projects radially inwards. Subsequently, the pivot bearing 9, the inner ring 16 of the pivot ring 15 and the support plate 39, starting from the still open, ie not yet forming an axial stop end inserted into the bearing sleeve 14.
• a second axial stop is formed by forming the other end portion of the workpiece and thereby received within the fixed bearing sleeve 14 components, ie, the outer bearing ring 11 of the pivot bearing 9 and the entire pivot bearing 9, the Inner ring 16 of the pivot ring 15 and the entire pivot ring 15 and the support plate 39, axially secured.
• the turn preferably integrally and further preferably formed of spring steel pivot ring 15 of the bearing device 12 of FIGS. 5 to 8 may also be prepared by a forming, for example by deep drawing, and in connection with a punching.
• the fixation of the bearing pin 25 within the passage openings of the wall of the outer ring 19 of the pivot ring 15 is preferably selected insoluble and can in particular cohesively, for example by welding, soldering or gluing done.
• connection variants are also possible.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Transportation (AREA)
• Power Steering Mechanism (AREA)
• Gear Transmission (AREA)
• Mounting Of Bearings Or Others (AREA)
• Steering Controls (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=64902028

Family Applications (1)

Country Status (3)

Families Citing this family (2)

Citations (10)

Family Cites Families (2)

• 2018
  • 2018-01-04 DE DE102018200089.1A patent/DE102018200089A1/de active Pending
  • 2018-12-17 CN CN201880085289.8A patent/CN111511630B/zh active Active
  • 2018-12-17 WO PCT/EP2018/085221 patent/WO2019134814A1/de active Application Filing

Patent Citations (10)

Also Published As

Similar Documents

Legal Events