Patents by Inventor Ulrich Schlegel

Ulrich Schlegel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11459022
    Abstract: A rolling bearing for mounting a driving worm of a power-assisted steering system of a vehicle includes a rotatable inner ring and a rotationally fixed outer ring. Rolling elements arranged between the inner and outer ring are guided by a channel-shaped first raceway arranged on a radially outer side of the inner ring and by a channel-shaped second raceway arranged on a radially inner side of the outer ring. The second raceway includes a cross-sectional profile that varies around its circumference. The cross-sectional profile allows laterally offset rolling elements to roll and thus tilting of the inner ring about a tilting axis orthogonal to the axis of rotation of the rolling bearing if the tilting axis assumes a predetermined tilted position in the circumferential direction of the second raceway and limits tilting of the inner ring to a minimum when the tilting axis is angled 90° to the tilted position.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: October 4, 2022
    Assignees: THYSSENKRUPP PRESTA AG, THYSSENKRUPP AG
    Inventors: Ulrich Schlegel, Michael Dona
  • Publication number: 20210300462
    Abstract: A rolling bearing for mounting a driving worm of a power-assisted steering system of a vehicle includes a rotatable inner ring and a rotationally fixed outer ring. Rolling elements arranged between the inner and outer ring are guided by a channel-shaped first raceway arranged on a radially outer side of the inner ring and by a channel-shaped second raceway arranged on a radially inner side of the outer ring. The second raceway includes a cross-sectional profile that varies around its circumference. The cross-sectional profile allows laterally offset rolling elements to roll and thus tilting of the inner ring about a tilting axis orthogonal to the axis of rotation of the rolling bearing if the tilting axis assumes a predetermined tilted position in the circumferential direction of the second raceway and limits tilting of the inner ring to a minimum when the tilting axis is angled 90° to the tilted position.
    Type: Application
    Filed: August 10, 2017
    Publication date: September 30, 2021
    Applicants: THYSSENKRUPP PRESTA AG, thyssenkrupp AG
    Inventors: Ulrich SCHLEGEL, Michael DONA
  • Patent number: 10988164
    Abstract: An electromechanical servo steering system with an electric servomotor having a motor shaft that drives a shaft which cogs with a helical gear. The shaft is arranged in a transmission housing and is mounted rotatably about an axis of rotation at its end near the motor in a bearing arrangement and is mounted pivotably in the transmission housing about a pivot axis which lies transverse to the axis of rotation. At least one spring element is provided which axial pretensions a bearing element that is pivotably movable with the shaft about the pivot axis, of the bearing arrangement in a spring-elastic manner against a bearing element that is arranged in a stationary manner in the transmission housing, of the bearing arrangement, wherein precisely two spring elements are provided which are arranged oppositely in the circumferential direction of the bearing arrangement.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: April 27, 2021
    Assignees: thyssenkrupp Presta AG, thyssenkrupp AG
    Inventors: Michael Brassel, Ulrich Schlegel, Mario Dällenbach, Michael Dona
  • Publication number: 20190308658
    Abstract: An electromechanical servo steering system with an electric servomotor having a motor shaft that drives a shaft which cogs with a helical gear. The shaft is arranged in a transmission housing and is mounted rotatably about an axis of rotation at its end near the motor in a bearing arrangement and is mounted pivotably in the transmission housing about a pivot axis which lies transverse to the axis of rotation. At least one spring element is provided which axial pretensions a bearing element that is pivotably movable with the shaft about the pivot axis, of the bearing arrangement in a spring-elastic manner against a bearing element that is arranged in a stationary manner in the transmission housing, of the bearing arrangement, wherein precisely two spring elements are provided which are arranged oppositely in the circumferential direction of the bearing arrangement.
    Type: Application
    Filed: October 12, 2017
    Publication date: October 10, 2019
    Applicants: THYSSENKRUPP PRESTA AG, thyssenkrupp AG
    Inventors: Michael BRASSEL, Ulrich SCHLEGEL, Mario DÄLLENBACH, Michael DONA
  • Patent number: 10252742
    Abstract: An electromechanical power steering system for a motor vehicle may include a driving worm that is driven by an electric motor and acts on a worm gear that is coupled to a steering shaft. The driving worm may be mounted in such a way that it can rotate about its worm axis. More particularly, the driving worm may be mounted in a bearing that is held in a mount. The mount may prestress the driving worm in a direction of the worm gear. In some examples, the mount is torsionally weak about a torsion axis that is positioned perpendicularly with respect to the worm axis.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: April 9, 2019
    Assignees: THYSSENKRUPP PRESTA AG, THYSSENKRUPP AG
    Inventors: Ulrich Schlegel, Manuel Büchel, Patrick Renggli
  • Publication number: 20190016300
    Abstract: A steering column for a motor vehicle may include a steering shaft that is rotatably mounted in a boxed swing arm, a latching element connected to the steering shaft in a torsion-resistant manner, a locking element that may be brought into engagement with the latching element for temporary blocking of the steering shaft, a sensor arrangement that detects a steering parameter such as an angle of rotation of the steering shaft or a torque acting on the steering shaft, and an electromechanical actuator for actuating the locking element depending on a control. The sensor arrangement may comprise first sensors for detecting the steering parameter and at least one second sensor for detecting a position of the locking element in a structural unit (13).
    Type: Application
    Filed: January 17, 2017
    Publication date: January 17, 2019
    Applicants: THYSSENKRUPP PRESTA AG, thyssenkrupp AG
    Inventors: Ulrich SCHLEGEL, Deniz ILHAN
  • Publication number: 20170217476
    Abstract: An electromechanical power steering system for a motor vehicle may include a driving worm that is driven by an electric motor and acts on a worm gear that is coupled to a steering shaft. The driving worm may be mounted in such a way that it can rotate about its worm axis. More particularly, the driving worm may be mounted in a bearing that is held in a mount. The mount may prestress the driving worm in a direction of the worm gear. In some examples, the mount is torsionally weak about a torsion axis that is positioned perpendicularly with respect to the worm axis.
    Type: Application
    Filed: June 24, 2015
    Publication date: August 3, 2017
    Applicants: ThyssenKrupp Presta AG, ThyssenKrupp AG
    Inventors: Ulrich Schlegel, Manuel Büchel, Patrick Renggli
  • Publication number: 20170072992
    Abstract: A steering shaft for a motor vehicle steering system may be used with a steering assistance means. The steering shaft may include an output shaft and a carrier that is connected rotationally conjointly to the output shaft. A worm gear toothing may be disposed on the radially outer region of the carrier. The worm gear toothing may comprise plastic and may form a worm gear for connection to the steering assistance means. Further, the carrier may be formed in one piece with the output shaft.
    Type: Application
    Filed: April 16, 2015
    Publication date: March 16, 2017
    Applicants: ThyssenKrupp Presta AG, ThyssenKrupp AG
    Inventors: Ulrich Schlegel, Patrick Renggli