Patents Assigned to Neumayer Tekfor Holding GmbH
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Patent number: 9273770Abstract: A method for producing a functional shaft is provided in which a functional element which is provided with a pocket is inserted into a retaining element, a shaft is inserted into the pocket, and a force applied to the functional element while the shaft is being inserted into the pocket is measured. A device for producing a functional shaft and to a functional shaft produced in accordance with the method is also provided.Type: GrantFiled: April 12, 2013Date of Patent: March 1, 2016Assignee: Neumayer Tekfor Holding GmbHInventors: Joachim Echle, Christoph Gremmelspacher, Markus Schuler
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Patent number: 9205812Abstract: A parking lock device of a gearbox is provided. The device includes a gearbox shaft, a gearbox housing, a locking ring which may be displaced axially along the gearbox shaft, a control ring which may be moved axially relative to the locking ring and the gearbox shaft. A movement of the control ring relative to the locking ring axially along the gearbox shaft causes an axial movement of the locking ring axially along the gearbox shaft, and the control ring displaces the locking ring in an activated state axially along the gearbox shaft to a predetermined axial position along the gearbox shaft. The gearbox shaft, the gearbox housing and the locking ring are designed and adapted to one another in such a way that in an activated state of the locking ring there is a positive engagement between the gearbox shaft, the gearbox housing and the locking ring.Type: GrantFiled: April 19, 2013Date of Patent: December 8, 2015Assignee: Neumayer Tekfor Holding GmbHInventor: Steffen Konstanzer
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Patent number: 8966752Abstract: A shaft, such as a camshaft for use in the internal combustion engine of a motor vehicle, in which the shaft includes a basic shaft body, a plurality of functional bodies, such as cams, mounted in axially spaced positions on the basic shaft body, and at least one balancing element mounted on the basic shaft body, in which the at least one balancing element is produced separately from the basic shaft body and from the functional bodies, and the functional bodies and the at least one balancing element are subsequently mounted on said basic shaft body, for example, by axial press fitting.Type: GrantFiled: January 22, 2013Date of Patent: March 3, 2015Assignee: Neumayer Tekfor Holding GmbHInventors: Manfred Vogel, Matthias Derse, Matthias Bechtold, Thomas Winkler
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Patent number: 8695547Abstract: An adjustable camshaft having at least one shaft, and having at least one cam package which has at least two different cams and/or cam contours. According to the invention, the cams and/or the cam contours of the cam packages have different widths.Type: GrantFiled: December 21, 2012Date of Patent: April 15, 2014Assignee: Neumayer Tekfor Holding GmbHInventor: Roman Weinmeister
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Patent number: 8696472Abstract: An arrangement with a joint and a gearwheel body for a transmission is provided in which the joint is a constant velocity joint arranged at least partially in an interior space enclosed by the gearwheel body. The constant velocity joint has inner and outer hub tracks and a bearing cage arranged to maintain an essentially constant control angle between tangential ball contact points with the inner and outer tracks while the bearing cage holds the balls in a plane.Type: GrantFiled: April 24, 2013Date of Patent: April 15, 2014Assignee: Neumayer Tekfor Holding GmbHInventors: Alexander Ebert, Martin Lehmann, Tobias Roser, Thomas Etzold, Tim Benz
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Patent number: 8595934Abstract: A method of producing a composite body, such as a gear wheel or torsional vibration damper, including a radially inner hub body provided with outer profiles, a surrounding outer body provided with inner profiles, and an intermediate layer of synthetic resin material which connects the outer profiles of the hub body with the inner profiles of the outer body; the hub body being with an inner contour adapted to mount the composite body on a shaft.Type: GrantFiled: September 27, 2011Date of Patent: December 3, 2013Assignee: Neumayer Tekfor Holding GmbHInventor: Matthias Derse
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Patent number: 8555508Abstract: A method for producing an internal or external part of a torque-transmitting opposed track joint, such as a fixed constant velocity ball joint, in which approximately axially parallel extending track bases of the joint tracks have curvatures which deviate in their axial course from the curvatures of the ball contact lines. The method is characterized in that in a first step a perform with approximately axially parallel extending grooves having lateral flanks is produced, and in a second step the perform is formed into a final joint part whereby the lateral flanks of the grooves are just partially formed to achieve the ball contact lines.Type: GrantFiled: July 15, 2010Date of Patent: October 15, 2013Assignee: Neumayer Tekfor Holding GmbHInventors: Volker Szentmihalyi, Mathias Lutz, Ekkehard Koerner
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Patent number: 8550951Abstract: A differential comprising at least one drive wheel, at least two axle wheels, at least one compensating wheel and at least one connecting element, wherein the connecting element experiences at least a first torque at least from the drive wheel, and wherein the connecting element transmits at least a second torque to at least one of the at least two axle wheels. The drive wheel is constructed such that the drive wheel at least partially surrounds at least one inner chamber; the connecting element is arranged at least partially inside the inner chamber that is at least partially surrounded by the drive wheel, and the connecting element is constructed in one piece.Type: GrantFiled: April 16, 2010Date of Patent: October 8, 2013Assignee: Neumayer Tekfor Holding GmbHInventors: Juliano Savoy, Mauro Moraes De Souza, Philippe Duque, Matthias Derse, Eva-Maria Finkenzeller, Renald Kuempel
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Publication number: 20130237331Abstract: An arrangement with a joint and a gearwheel body for a transmission is provided in which the joint is a constant velocity joint arranged at least partially in an interior space enclosed by the gearwheel body. The constant velocity joint has inner and outer hub tracks and a bearing cage arranged to maintain an essentially constant control angle between tangential ball contact points with the inner and outer tracks while the bearing cage holds the balls in a plane.Type: ApplicationFiled: April 24, 2013Publication date: September 12, 2013Applicant: Neumayer Tekfor Holding GmbHInventors: Alexander EBERT, Martin LEHMANN, Tobias ROSER, Thomas ETZOLD, Tim BENZ
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Publication number: 20130228413Abstract: A parking lock device of a gearbox is provided. The device includes a gearbox shaft, a gearbox housing, a locking ring which may be displaced axially along the gearbox shaft, a control ring which may be moved axially relative to the locking ring and the gearbox shaft. A movement of the control ring relative to the locking ring axially along the gearbox shaft causes an axial movement of the locking ring axially along the gearbox shaft, and the control ring displaces the locking ring in an activated state axially along the gearbox shaft to a predetermined axial position along the gearbox shaft. The gearbox shaft, the gearbox housing and the locking ring are designed and adapted to one another in such a way that in an activated state of the locking ring there is a positive engagement between the gearbox shaft, the gearbox housing and the locking ring.Type: ApplicationFiled: April 19, 2013Publication date: September 5, 2013Applicant: Neumayer Tekfor Holding GmbHInventor: Steffen KONSTANZER
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Patent number: 8523687Abstract: A joint, particularly a constant velocity ball joint, including an inner hub and an outer hub, which hubs exhibit respective inner and outer ball tracks which are associated with each other in pairs, and further including balls disposed in the pairs of associated inner and outer ball tracks, the tracks being configured such that at the contact points of the balls with the ball tracks the tangential planes form an angle of inclination, and the ball tracks exhibiting at any given time a continually changing curvature, as a result of which the angle of inclination is constant.Type: GrantFiled: July 14, 2011Date of Patent: September 3, 2013Assignee: Neumayer Tekfor Holding GmbHInventors: Mathias Lutz, Thomas Gregor
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Publication number: 20130220068Abstract: A method for producing a functional shaft is provided in which a functional element which is provided with a pocket is inserted into a retaining element, a shaft is inserted into the pocket, and a force applied to the functional element while the shaft is being inserted into the pocket is measured. A device for producing a functional shaft and to a functional shaft produced in accordance with the method is also provided.Type: ApplicationFiled: April 12, 2013Publication date: August 29, 2013Applicant: Neumayer Tekfor Holding GmbHInventor: Neumayer Tekfor Holding GmbH
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Patent number: 8474136Abstract: A method of fabricating a camshaft including at least one carrier unit and at least one functional element. The carrier unit is produced at least in part from at least one first blank by way of at least one first machining method, and the functional element is produced at least in part from at least one second blank by way of at least one second machining method. The invention further relates to a camshaft produced by the method of the invention.Type: GrantFiled: December 9, 2011Date of Patent: July 2, 2013Assignee: Neumayer Tekfor Holding GmbHInventors: Matthias Bechtold, Christian Fuchs, Johannes Tisch
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Patent number: 8459919Abstract: A fastening device comprising at least one nut, at least one support unit, and at least one spring element, with the nut, the support unit, and the spring element being constructed and matched to each other in such a way that the spring element exerts a force between the nut and the support unit.Type: GrantFiled: December 1, 2011Date of Patent: June 11, 2013Assignee: Neumayer Tekfor Holding GmbHInventors: Klaus Ehrler, Mauro Moraes De Souza, Juliano Savoy, Paulo Cesar Sigoli
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Publication number: 20130133195Abstract: A shaft, such as a camshaft for use in the internal combustion engine of a motor vehicle, in which the shaft includes a basic shaft body, a plurality of functional bodies, such as cams, mounted in axially spaced positions on the basic shaft body, and at least one balancing element mounted on the basic shaft body, in which the at least one balancing element is produced separately from the basic shaft body and from the functional bodies, and the functional bodies and the at least one balancing element are subsequently mounted on said basic shaft body, for example, by axial press fitting.Type: ApplicationFiled: January 22, 2013Publication date: May 30, 2013Applicant: NEUMAYER TEKFOR HOLDING GmbHInventor: NEUMAYER TEKFOR HOLDING GmbH
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Publication number: 20130125699Abstract: A method for manufacturing a shaft, particularly a camshaft, in which the camshaft has a support element and multiple functional elements, each with a recess, and the functional elements are inserted into at least one holder element, and are held immobile in that position, and the support element is inserted into the recesses, also a holder device for manufacturing a camshaft, and a camshaft produced by such a method.Type: ApplicationFiled: January 18, 2013Publication date: May 23, 2013Applicant: NEUMAYER TEKFOR HOLDING GMBHInventor: NEUMAYER TEKFOR HOLDING GMBH
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Publication number: 20130104824Abstract: An adjustable camshaft having at least one shaft, and having at least one cam package which has at least two different cams and/or cam contours. According to the invention, the cams and/or the cam contours of the cam packages have different widths.Type: ApplicationFiled: December 21, 2012Publication date: May 2, 2013Applicant: Neumayer Tekfor Holding GmbHInventor: Neumayer Tekfor Holding GmbH
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Patent number: 8419554Abstract: A cage for a ball joint, the cage being configured annularly about a longitudinal axis and having an inner surface and an outer surface, two edges delimiting the inner surface and the outer surface and a window, in which the inner surface surrounds an inner space of the cage and two webs laterally adjoin the window. One edge of the cage has an offset relative to the longitudinal axis in relation to one of the two webs at the height of the window. A ball joint with a corresponding cage is also disclosed.Type: GrantFiled: August 31, 2012Date of Patent: April 16, 2013Assignee: Neumayer Tekfor Holding GmbHInventors: Volker Szentmihalyi, Arne Schmidbauer
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Patent number: 8393991Abstract: An axle assembly comprising a differential provided with a drive wheel comprising two pairs of bevel gears disposed in a two-part housing, one of the pairs of bevel gears being a pair of axle bevel gears and the other pair of bevel gears being a pair of compensating bevel gears.Type: GrantFiled: February 17, 2011Date of Patent: March 12, 2013Assignee: Neumayer Tekfor Holding GmbHInventors: Manfred Vogel, Volker Szentmihalyi, Matthias Derse
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Patent number: 8393839Abstract: A screw connection having a screw section and a nut threaded thereon. A self-locking effect of the nut on the screw section is achieved in a simple manner in that an intermediate disk is supported non-rotatably on the screw section and is received on the nut so as to be rotatable relative to the nut. The intermediate disk includes a grid distributed around the circumference of the intermediate disk, and the nut carries at least one resiliently elastic, radially displaceable catch formed by a sheet-metal part which, after installing the nut, positively engages the grid to lock the nut against rotation relative to the screw section and intermediate disk. Upon application of a wrench to the nut, the at least one resilient, radially displaceable catch is compressed and drawn out of engagement with the grid, so that the nut can be rotated relative to the screw section.Type: GrantFiled: July 15, 2011Date of Patent: March 12, 2013Assignee: Neumayer Tekfor Holding GmbHInventors: Juliano Savoy, Paulo Cesar Sigoli, Mauro Moraes De Souza