Patents Assigned to ThyssenKrupp Presta Aktiengesellschaft
-
Patent number: 8590932Abstract: An adjustable steering column for a motor vehicle includes a clamping device, in the opened state of which the steering column is adjustable and in the closed state of which the set position of the steering column is fixed. The clamping device comprises an actuating lever and a clamping piece, which can be rotated about an axis of rotation by the actuating lever in order to open and close the clamping device. The actuating lever can be twisted about the axis of rotation at least in one direction of rotation with respect to the clamping piece when a limit of a torque acting between the actuating lever and the clamping piece is exceeded.Type: GrantFiled: August 10, 2009Date of Patent: November 26, 2013Assignee: Thyssenkrupp Presta AktiengesellschaftInventors: Maximilian Dietz, Tillmann Rutzel
-
Patent number: 8539855Abstract: A adjustable steering column for a motor vehicle includes a mounting part that can be attached to the chassis of the motor vehicle, and an adjusting part that can be adjusted relative to the mounting part. The adjusting part rotatably supports a segment of the steering spindle, and the segment is adjacent to a steering wheel side end of the steering spindle that can be adjusted relative to the mounting part between a first end position and a second end position, along an adjusting path, when adjusting the adjusting part. The steering-wheel side end is adjusted through at least part of the adjusting path in a coupled manner in one direction of a length adjustment of the steering column, and in one direction of a height or tilt adjustment of the steering column. A front guide pin is mounted at the adjusting part or on the mounting part, and the pin engages in at least one elongated hole provided in the other of the two parts.Type: GrantFiled: November 20, 2009Date of Patent: September 24, 2013Assignee: ThyssenKrupp Presta AktiengesellschaftInventor: Rony Schnitzer
-
Publication number: 20130192330Abstract: A die for forging a toothed section of a gear rack of a steering device, including a first die part (9) having a first molding recess (11) for molding the toothing and a second die part (10) having a second molding recess (12), which has the shape of the back area of the gear rack opposite the toothing. The die parts (9, 10) can be moved toward each other in a closing direction (13) into an end position, in which the die parts have a distance (s) from each other, wherein a main cavity (14) is formed between the die parts (9, 10) in a region of the molding recesses (11, 12) of the die parts (9, 10), the main cavity being open on opposite sides to secondary cavities (16, 17), which lie in respective regions between the first and second die parts (9, 10).Type: ApplicationFiled: July 2, 2011Publication date: August 1, 2013Applicant: THYSSENKRUPP PRESTA AKTIENGESELLSCHAFTInventors: Jurgen Dohmann, Christoph Westerkamp
-
Patent number: 8480129Abstract: A steering column for a motor vehicle comprises a casing unit, which serves to rotatably mount a steering spindle section adjoining a steering-wheel-side end, and at least one support piece which can be fastened at one side to a motor vehicle part fixed with respect to the body and which is or can be fixedly connected at the other side to the casing unit. At least one rupturing region is formed, along which, when a displacement force which exceeds a predefined release force acts in the direction of the longitudinal axis of the steering spindle section adjoining the steering-wheel-side end, the connection of the support piece to the casing unit or the support piece can be ruptured, wherein a displacement of the casing unit relative to the part fixed with respect to the body takes place.Type: GrantFiled: May 5, 2010Date of Patent: July 9, 2013Assignee: Thyssenkrupp Presta AktiengesellschaftInventors: Markus Schlegel, Felipe Segatto, Stefan Mützner, Nicolas Jacques
-
Patent number: 8474869Abstract: A steering column for a motor vehicle includes a casing unit, which rotatably supports a steering shaft about the longitudinal axis thereof, and a retaining part. The casing unit is held in a fixed manner relative to said retaining part up to a threshold value of a force acting on the casing unit in a parallel manner to the longitudinal axis of the steering shaft in the direction of the front of the vehicle. When the threshold value is exceeded, the casing unit is movably held in a parallel manner to the longitudinal axis in the direction of the front of the vehicle.Type: GrantFiled: November 5, 2010Date of Patent: July 2, 2013Assignee: Thyssenkrupp Presta AktiengesellschaftInventors: Hansjörg Sulser, Sebastian Huber
-
Patent number: 8435124Abstract: A variable length steering spindle for a steering mechanism of a motor vehicle includes an outer sleeve, an inner member, a slide sleeve having recesses, and rolling bodies. The recesses and the rolling bodies are configured such that the rolling bodies project from the slide sleeve in a no-load state of the slide sleeve, and in an assembled state of the steering spindle the rolling bodies are prestressed against a raceway face and are displaced in a direction away from the raceway face against a reset force. The slide sleeve contacts the other of the outer sleeve and the inner member when a limit value of torque is exceeded. The rolling bodies are non-displaceable in the longitudinal direction with respect to the slide sleeve or are finitely displaceable between stops formed at distal ends of the recesses.Type: GrantFiled: July 8, 2009Date of Patent: May 7, 2013Assignee: Thyssenkrupp Presta AktiengesellschaftInventor: Christoph Klukowski
-
Patent number: 8424412Abstract: A steering column for a motor vehicle includes a bracket unit bearing a steering spindle, and the unit is secured by means of securement bolts on a vehicle-stationary part. The securement bolts penetrate through elongated holes in the bracket unit or in the vehicle-stationary part, and the bracket unit in the event of a crash, is displaceable, starting from a starting position, with the displacement of the securement bolts in the elongated holes with respect to the vehicle-stationary part. Each elongated hole is disposed at least over a portion of its longitudinal extent in a retaining strip which, in the starting position of the bracket unit, includes a curvature, which, during a displacement of the bracket unit with respect to the vehicle-stationary part occurring in the event of a crash, is at least decreased through the cooperation with the securement bolt or a part disposed thereon.Type: GrantFiled: March 26, 2010Date of Patent: April 23, 2013Assignee: Thyssenkrupp Presta AktiengesellschaftInventor: Matteo Scapozza
-
Patent number: 8388455Abstract: An antifriction bushing is provided for the bearing of a telescopable steering spindle having an inner spindle and an outer spindle which are disposed coaxially with respect to one another and displaceably with respect to one another and for the torque transmission have a cross section differing from circular. Between the outer spindle and the inner spindle, an interspace is provided for receiving the antifriction bushing consisting of a thermoplastic synthetic material or comprising such material. The bushing includes an inner surface and an outer surface, and consists of a mixture comprising the material PEEK and additionally at least one of the materials PTFE at a volume fraction of up to maximally 15% and/or graphite at a volume fraction of up to maximally 15% and/or carbon fibers at a volume fraction of up to maximally 40%.Type: GrantFiled: December 22, 2010Date of Patent: March 5, 2013Assignee: ThyssenKrupp Presta AktiengesellschaftInventor: Frank Eltner
-
Patent number: 8302503Abstract: The invention relates to a steering column for a motor vehicle with a steering spindle pivotably supported by a jacket unit and a securement unit rigidly securable on the motor vehicle and bearing the jacket unit. The securement unit includes a base section, at least one side jaw extending next to the jacket unit, and at least first and second securement plates with bolt openings for the securement of the securement unit on the motor vehicle by means of securement bolts. The first and second securement plates are each inclined with respect to the at least one side jaw by an angle in the range between 15° and 75°, and preferably between 30° and 60°.Type: GrantFiled: November 24, 2007Date of Patent: November 6, 2012Assignee: Thyssenkrupp Presta AktiengesellschaftInventors: Rony Schnitzer, Thomas Heitz
-
Patent number: 8176763Abstract: A toothed rack has hollow sections and a longitudinal axis that extends parallel to a longitudinal direction and which in the hollow region includes a wall encompassing the longitudinal axis of the toothed rack in a circumferential direction and in at least a subregion comprises a toothing. In the circumferential direction spaced apart from the toothing, at least one local attenuation and/or holding edge is developed in the wall, which, with respect to the longitudinal direction of the toothed rack, extends at least over a portion of the length of the toothing next to the attenuation.Type: GrantFiled: June 22, 2009Date of Patent: May 15, 2012Assignee: Thyssenkrupp Presta AktiengesellschaftInventor: Ralf Eckstein
-
Patent number: 7963561Abstract: A steering column for a motor vehicle is adjustable at least in its longitudinal direction. The steering column includes a support unit chassis of the motor vehicle, a setting unit and a clamping mechanism which comprises a clamp bolt and at least one arrest element cooperating with at least one securement element. At least one arrest element during the closing of the clamping mechanism is displaced in the axial direction of the clamp bolt with respect to the support unit and clamped with a securement element connected with the setting unit, and at least one securement element is connected with the setting unit so that in normal operation it is held nondisplaceably in the longitudinal direction of the steering column with respect to the setting unit and in the event of a crash is displaceable with respect to the setting unit under energy absorption. The support unit includes on both sides of the setting unit side jaws, through which penetrates the clamp bolt through openings.Type: GrantFiled: April 28, 2008Date of Patent: June 21, 2011Assignee: Thyssenkrupp Presta AktiengesellschaftInventors: Gerhard Waibel, Rene Allgäuer, Maximilian Auer, Martin Jenny
-
Patent number: 7887069Abstract: A toothed rack or threaded rod, in particular for a steering mechanism for a motor vehicle, includes a first rod-shaped part which, as a function element of the toothed rack or threaded rod, includes at least one element for the conversion of a rotational movement into a translational movement, in particular a toothing and/or a threading for the engagement of a threaded nut or of a threaded drive, and a second rod-shaped part which is connected with the first rod-shaped part. The connection of the first with the second rod-shaped part takes place via a separate connection part which includes first and second connection pins, of which the first connection pin is held by press fit in the hollow volume opening out at the connection end of the first rod-shaped part and the second connection pin is held by press fit in the hollow volume opening out at the connection end of the second rod-shaped part.Type: GrantFiled: October 19, 2009Date of Patent: February 15, 2011Assignee: Thyssenkrupp Presta AktiengesellschaftInventors: Roman Bilmayer, Ralf Eckstein, Alexander Kiforiuk, Frank Birkwald, Michael Stange
-
Patent number: 7849763Abstract: The invention relates to a device for fixing an at least height-adjustable steering column. The device includes a clamping device provided with a clamping element having an open position in which the height adjustment is released. When the clamping element passes from the opening position thereof to the closed position thereof, toothings engage with each other. A blocking element has a blocking position in which it blocks the lifting of the counter-fixing part from the fixing part, maintaining the engagement of the toothings, and a release position in which the counter-fixing part can be lifted from the fixing part.Type: GrantFiled: March 11, 2005Date of Patent: December 14, 2010Assignee: Thyssenkrupp Presta AktiengesellschaftInventor: Christian Lutz
-
Patent number: 7841063Abstract: In a method for the production of a corrugated tube from a flat metal sheet, two half shells are formed each extending in a longitudinal direction, and the half shells are provided with corrugations oriented transversely to their longitudinal direction. The two half shells are either disposed in a single sheet metal part longitudinally next to one another or are separate parts. In the case of their formation with two half shells disposed in a common sheet metal part next to one another, the preformed sheet metal part in the region between the two half shells is folded or curved about an axis parallel to the longitudinal directions of the half shells, wherein free longitudinal edges of the half shells are brought into mutual contact and are connected with one another. In the case of the formation of the half shells in the form of separate parts, the two half shells are placed against one another with their longitudinal edges and the longitudinal edges are connected with one another.Type: GrantFiled: August 4, 2008Date of Patent: November 30, 2010Assignee: Thyssenkrupp Presta AktiengesellschaftInventor: Christian Lutz
-
Patent number: 7779945Abstract: A method for the production of a steering spindle part is provided. The method includes forming a section of a steering spindle for a motor vehicle and which is implemented in the form of a hollow shaft and includes at least a connection section adjoining one of its ends. The connection section has at least over a portion of its length a wall thickness (D) which, compared to a section of the steering spindle part adjoining the connection section, is increased, for the production of the steering spindle part as the starting produce is utilized an initially hollow-cylindrical tube, which is at least section-wise reshaped. For the formation of the connection section, a sleeve is set into an end section of the tube and the end section of the tube and of sleeve are subsequently jointly reshaped.Type: GrantFiled: September 2, 2008Date of Patent: August 24, 2010Assignee: Thyssenkrupp Presta AktiengesellschaftInventor: Rene Allgäuer
-
Patent number: 7752940Abstract: An adjustable steering column for a motor vehicle includes a fixing device, in the opened state of which the steering column is adjustable in at least one displacement direction, and, in the closed state of which the set position of the steering column is fixed in the displacement direction or at least one of the displacement directions, for fixing the set position comprises at least one securement part which includes at least one toothing with teeth, and at least one counter-securement part, which includes at least one counter toothing, with teeth.Type: GrantFiled: February 1, 2008Date of Patent: July 13, 2010Assignee: Thyssenkrupp Presta AktiengesellschaftInventor: Christian Lutz
-
Patent number: 7731235Abstract: Steering column for a motor vehicle with a rotatably supported steering spindle (1), a supporting unit (4) supporting the steering spindle (1) and a mounting unit (5) for securing the steering spindle (1) on the chassis of the motor vehicle, the supporting unit (4) in the event of a crash being displaceable with respect to the mounting unit (5), and an energy absorption device (18) acting between the supporting unit (4) and mounting unit (5) for the energy absorption in the displacement of the supporting unit (4) with respect to the mounting unit (5) in the event of a crash being provided, characterized in that at least one energy absorption part (34) of the energy absorption device (18) deformable in the displacement of the supporting unit (4) with respect to the mounting unit (5) is composed of a magnetorheological elastomer and that the energy absorption device (18) includes a means for the generation of a magnetic field, by means of which the energy absorption part (34) composed of the magnetorheologicType: GrantFiled: September 19, 2008Date of Patent: June 8, 2010Assignee: Thyssenkrupp Presta AktiengesellschaftInventor: Christoph Klukowski
-
Patent number: 7607696Abstract: An adjustable steering column for a motor vehicle includes a setting unit displaceable in at least one displacement direction for setting the position of the steering column, a holding unit nondisplaceable into this displacement direction, a securement device, in the opened state of which the setting unit (4) is displaceable with respect to the holding unit for setting the position of the steering column and in the closed state of which the setting unit (4) is secured in position by the securement device, and a crash blocking device, which is displaceable between a passive state and an active state. The blocking device raises an additional holding force against a displacement of the setting unit with respect to the holding unit into at least one displacement direction.Type: GrantFiled: May 23, 2008Date of Patent: October 27, 2009Assignee: Thyssenkrupp Presta AktiengesellschaftInventor: Eugen Graf
-
Patent number: 7475908Abstract: The invention proposes an adjustable steering column for a motor vehicle with a setting part displaceable in at least one setting direction for setting the position of the steering column, a holding part nondisplaceable in this setting direction and a securement device, in the opened state of which the setting part is displaceable with respect to the holding part for setting the position of the steering column, and in the closed state of which the setting part is secured in place by the securement device.Type: GrantFiled: January 18, 2008Date of Patent: January 13, 2009Assignee: ThyssenKrupp Presta AktiengesellschaftInventor: Mathias Senn
-
Patent number: 7387045Abstract: An adjustable steering column includes a steering spindle (1), a shell unit (3) bearing the steering spindle (1), a console unit (4), stationary on the chassis, with at least one side wall (5), which extends bilaterally along the shell unit (3) and supports the shell unit (3). The steering column also includes a securement device, which can be opened and closed, in the opened state of which the shell unit (3) is adjustable relative to the console unit (4) at least in one adjustment direction, and which has a tension bolt (11) penetrating openings in the shell unit (3) and in the at least one side wall (5).Type: GrantFiled: November 25, 2003Date of Patent: June 17, 2008Assignee: ThyssenKrupp Presta AktiengesellschaftInventors: Christoph Klukowski, Robert Galehr, Reinhard Bertsch, Reto Umberg, Hubert Breuss, Christian Lutz