Steering shaft for a steering system of a motor vehicle, method for assembling such a steering shaft, steering system for a motor vehicle, and motor vehicle
A steering shaft for a steering system of a motor vehicle, having at least two steering shaft elements, via which a steering wheel is mechanically connectable to a steering gear of the steering system, and having at least one joint, via which the steering shaft elements are connected to one another in a torque-transmitting manner and so they are pivotable relative to one another around the pivot axis. At least one securing element, which secures the steering shaft elements relative to one another against pivot movements extending around the pivot axis both in a first pivot direction and also in a second pivot direction opposite to the first pivot direction and releases the steering shaft elements for a pivot movement relative to one another taking place around the pivot axis in at least one of the pivot directions.
Drawings
Claims10
A steering shaft for a steering system of a motor vehicle, comprising:
at least two steering shaft elements, via which a steering wheel is mechanically connectable to a steering gear of the steering system, and at least one joint, via which the steering shaft elements are connected to one another in a torque-transmitting manner and so they are pivotable relative to one another around a pivot axis,
wherein at least one securing element, which secures the steering shaft elements relative to one another against pivot movements extending around the pivot axis both in a first pivot direction and a second pivot direction opposite to the first pivot direction and releases the steering shaft elements for a pivot movement relative to one another taking place around the pivot axis in at least one of the pivot directions, the at least one securing element comprising at least two sides separated by a middle portion, wherein the middle portion is thinner than the two sides.
A method for assembling a steering shaft, comprising:
carrying out at least one first assembly step, during which the steering shaft is in an assembly state in which the securing effectuated by a securing element of the steering shaft relative to one another against pivot movements extending around a pivot axis both in a first pivot direction and also in a second pivot direction does not occur;
and
assembling the securing element in such a way that the securing element effectuates the securing of the steering shaft elements relative to one another.
13 Sep 2039Estimated · howhide20 years from earliest known nonprovisional domestic filing plus recorded patent term adjustment, including 123 days of adjustment. Maintenance-fee lapses, terminal disclaimers and statutory extensions have not been checked. The continuity chain may be incomplete; this is not an enforceability determination.
About 12 years 11 months of term left · ends 13 Sep 2039 (estimated)
Priority, Germany4 Jun 2018
Filed13 May 2019
Published8 Apr 2021
Granted27 Dec 2022
Today12 Oct 2026
Term ends13 Sep 2039
Priority, Germany4 Jun 2018
Granted27 Dec 2022
Term ends13 Sep 2039
Priority claimedDE 10 2018 208 745.8
Application filedUS 17/041,101
Assigned to Audi AGassignment of assignor's interest
PublishedUS 2021/0101636 A1
GrantedUS 11,535,293 B2
TodayWithin its term
Term endsEstimated, includes 123 days of adjustment
Description8,795 words
Summary5,546 words
#A steering shaft for a steering system of a motor vehicle, in particular a passenger vehicle, and a method for assembling such a steering shaft.
#U.S. Pat. No. 5,853,194 discloses an arrangement of steering shafts, which are jointly rotatable to transmit steering torques in a vehicle steering column. Shafts which are connected to one another via a joint are provided for this purpose.
#Furthermore, WO 99/03716 A1 discloses a steering column arrangement for motor vehicles having an energy absorption element having a telescopically collapsible steering spindle mounted in jacketed pipe parts.
Brief description of the drawings2 figures
#Exemplary embodiments of the invention are described hereinafter. In the figures:
#FIG. 1 shows a schematic side view of a steering shaft according to the invention for a motor vehicle in a normal operation and thus during operation of the motor vehicle; and
#FIG. 2 shows a schematic side view of the steering shaft in an accident state.
Detailed description3,191 words
#The exemplary embodiment explained hereinafter relates to preferred embodiments of the invention. In the exemplary embodiment, the described components of the embodiments each represent individual features of the invention to be considered independently of one another, which each also refine the invention independently of one another and are thus to be considered to be a component of the invention individually or in a combination other than that shown. Furthermore, the described embodiment can also be supplemented by further features of the invention already described.
#In the figures, identical reference signs each identify functionally identical elements.
#FIG. 1 shows a schematic side view of a steering shaft 10 for a steering system 12 of a motor vehicle, preferably designed as a passenger vehicle. The steering shaft 10 has a first steering shaft element 14 and a second steering shaft element 16, via which a steering wheel 18, which is schematically shown especially in FIG. 1, is mechanically connectable or connected to a steering gear 20 of the steering system 12. In the completely produced state of the motor vehicle, it comprises the steering system 12, which comprises, for example, the steering shaft 10, the steering wheel 18, and the steering gear 20. The motor vehicle additionally has a body designed, for example, as a self-supporting vehicle body and an interior delimited by the body, in which persons, for example, the driver of the motor vehicle, can stay. In addition, the motor vehicle comprises wheels (not shown in the figures) designed, for example, as front wheels, which are designed as steerable or steered wheels. The wheels can therefore be pivoted around respective pivot axes relative to the body and thus steered. By pivoting or steering the wheels relative to the body, for example, lane changes and/or direction changes and/or cornering of the motor vehicle can be effectuated. To pivot the wheels relative to the body, the driver exerts torques on the steering wheel 18. In this way, the steering wheel 18 is rotated around a steering wheel rotational axis 22 relative to the body. By rotating the steering wheel 18, the steering shaft 10 and thus the steering shaft elements 14 and 16 are rotated jointly or simultaneously relative to the body. In addition, the respective torque exerted on the steering wheel 18 is transmitted from the steering wheel 18 to the steering shaft 10 and from the steering shaft 10 to the steering gear 20 and finally from the steering gear 20 to the wheels. The wheels are steered in this way.