Patents Assigned to IFA Technologies GmbH
  • Patent number: 11852204
    Abstract: An outer part for homokinetic joints and rolling bearings, the outer part having, at least at one of its end faces, an annular sealing face. Axially running bores for receiving fastening means are formed in the end faces of the outer part, the sealing face extending in the region of the bores radially between the bores and the inner diameter of the outer part. A contour protruding from the sealing face is arranged on the end-face sealing face(s) of the outer part, against which contour the seal presses when fitted. Said contour, which protrudes nose-like in longitudinal cross-section, provides even at the pre-assembled stage a small seating surface for the seal, such that the contour is fixed in position, without the use of an adhesive, even under small pressing forces, such as those usually applied during the preassembly of the module to which the outer part belongs.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: December 26, 2023
    Assignee: IFA-Technologies Gmbh
    Inventors: Martin Schmidt, Heike Kleinhaus, Sebastian Eilert
  • Patent number: 10272520
    Abstract: A joint-site structure for components to be connected by overlap friction welding. At least one step of at least one component, on which an axially set-back ring-shaped joining surface is situated, is provided with a radial undercut, in such a manner that on the face side, a region of this step that is unchanged in diameter forms a radial support ridge, which is connected with the at least one component by way of a heat throttle that is reduced in cross-section. The length of each step is designed in such a manner that when the face surface of the one component makes contact with the ring-shaped joining surface of the other component, the other face surfaces of these components, which surfaces lie opposite one another in the same radial position, are still exposed until completion of the friction-welding process.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: April 30, 2019
    Assignee: IFA-Technologies GmbH
    Inventors: David Schmicker, Marcus Kreibich, Frank Trommer, Andreas Krueger
  • Patent number: 10253819
    Abstract: A connection arrangement for axially securing a shaft-hub connection includes a shaft, a hub, and a securing device. The hub has an inner stop surface for the shaft formed by a recess and has an outer groove for axially positioning the securing device. The securing device has an axially extending sleeve-shaped part at least partly surrounding the circumference of the hub and has a radial collar at least partly engaging behind the annular end surface of the hub. The sleeve-shaped part is surrounded by a tensioning strap. A holding socket region offset radially inwards surrounds the expanded outer groove of the hub coaxially in the assembled state and can be locked in the expanded outer groove of the hub by the tensioning strap. The radial collar of the holding socket rests against an axial securing ring of the shaft in the locked state.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: April 9, 2019
    Assignee: IFA-Technologies GmbH
    Inventor: John Sherlock
  • Patent number: 10012259
    Abstract: A drive shaft for motor vehicles comprises shaft portions arranged one after the other in s longitudinal direction of the drive shaft. One shaft portion is a tubular shaft portion having a large cross section and another shaft portion having a cross section that is smaller than the tubular shaft portion having a large cross section. A transition region having a region wall is provided between the tubular shaft portion and the shaft portion having the smaller cross section. If the drive shaft is compressed in the event of a crash, the shaft portion having the smaller cross section is pushed into the tubular shaft portion having the large cross section by an insertion length, thus deforming or breaking the region wall of the transition region.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: July 3, 2018
    Assignees: Felss Rotaform GmbH, IFA - Technologies GmbH
    Inventors: Eckhard Morlock, Andreas Haerter, Gerald Langer
  • Publication number: 20170363152
    Abstract: A constant velocity joint includes an external joint part including internal ball tracks, an internal joint part including external ball tracks assigned to the internal ball tracks, and a ball cage holding balls. The external joint part is connectable to a connecting part and sealed by a closure cap on the side facing this connecting part. The internal joint part is an integral internal joint part connected permanently to a shaft piece, sealed on this side towards the external joint part by a flexible sealing element, hardened, and has a protruding welding attachment for an adapter on its free end. The welding attachment outer diameter is larger than the smallest integral internal joint part outer diameter. In a method, the sealing element is mounted over the integral internal joint part free end and connected to the external joint part, the adapter subsequently welded near the welding attachment.
    Type: Application
    Filed: June 19, 2017
    Publication date: December 21, 2017
    Applicant: IFA-Technologies GmbH
    Inventors: David SCHMICKER, Andreas KRUEGER, Martin SCHMIDT
  • Publication number: 20170321755
    Abstract: A connection arrangement for axially securing a shaft-hub connection includes a shaft and a hub with an inner stop surface for the shaft and an outer groove for axially positioning a securing device. The securing device has an axially extending sleeve-shaped part and a radial collar. The sleeve-shaped part at least partly surrounds the circumference of the hub, and the radial collar at least partly engages behind the annular end surface of the hub. The inner stop surface for the shaft in the housing is formed by a recess. The securing device includes a radially deformable holding socket, the axially extending sleeve-shaped part of which is surrounded by a tensioning strap.
    Type: Application
    Filed: June 18, 2015
    Publication date: November 9, 2017
    Applicant: IFA-Technologies GmbH
    Inventor: John SHERLOCK
  • Publication number: 20170320160
    Abstract: A joint-site structure for components to be connected by overlap friction welding. At least one step of at least one component, on which an axially set-back ring-shaped joining surface is situated, is provided with a radial undercut, in such a manner that on the face side, a region of this step that is unchanged in diameter forms a radial support ridge, which is connected with the at least one component by way of a heat throttle that is reduced in cross-section. The length of each step is designed in such a manner that when the face surface of the one component makes contact with the ring-shaped joining surface of the other component, the other face surfaces of these components, which surfaces lie opposite one another in the same radial position, are still exposed until completion of the friction-welding process.
    Type: Application
    Filed: May 5, 2017
    Publication date: November 9, 2017
    Applicant: IFA-Technologies GmbH
    Inventors: David SCHMICKER, Marcus KREIBICH, Frank TROMMER, Andreas KRUEGER
  • Patent number: 8870489
    Abstract: The invention relates to a device (1, 1?) for the rotationally fixed connection of a drive-effective pin (3) of a gearbox to an articulated body (2) of a drive coupling of a drive shaft. In order to allow cost-effective and compact production and in order to simplify assembly and disassembly, the invention provides for the pin (3) and the articulated body (2) of the drive coupling to have respective mutually corresponding external axial toothings (11) and internal axial toothings (8) which are able to mesh with one another, and for an axial securing of the articulated body (2) and the pin (3) to be made possible by an axially displaceable bushing (12) arranged on the pin (3), which bushing (12) can be attached to a connecting portion (4) of the articulated body (2).
    Type: Grant
    Filed: June 1, 2008
    Date of Patent: October 28, 2014
    Assignee: IFA-Technologies GmbH
    Inventors: Gerald Langer, John Sherlock
  • Patent number: 8297625
    Abstract: A seal for sealing a cardan shaft housing, particularly at a contact surface between an outer ring and a housing lid, has a first sealing element that at least partially covers the contact surface plane to be sealed, as well as a first shape-stabilizing element that is at least partially firmly connected with the first sealing element. A second sealing element is at least partially firmly connected on the shape-stabilizing element.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: October 30, 2012
    Assignee: IFA Technologies GmbH
    Inventor: Reiner Schmid
  • Publication number: 20120243930
    Abstract: A connection arrangement of a shaft/hub connection has a radially elastically deformable securing element that is divided in the longitudinal direction, which engages with shape fit into grooves of a shaft and a hub. The shaft has a wide groove that projects beyond the hub only in certain parts. The securing element is configured as a securing ring or bushing and is widened, at least in certain sections, in the axial direction, beyond the hub projecting into the groove of the shaft.
    Type: Application
    Filed: March 19, 2012
    Publication date: September 27, 2012
    Applicant: IFA-TECHNOLOGIES GMBH
    Inventors: Stefan PASTOORS, Gerald LANGER
  • Patent number: 8221283
    Abstract: A drive train connection has a shaft, a joint, particularly a constant velocity joint, and a coupling device. The coupling device is a planetary gear mechanism having a hollow wheel, at least one planet wheel and a sun wheel. The shaft and the sun wheel have corresponding locking means oriented in the axial direction. The sun wheel, together with the joint, can be screwed onto the shaft or unscrewed from the shaft by turning the hollow wheel.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: July 17, 2012
    Assignee: IFA-Technologies GmbH
    Inventors: Holger Frank, Jonathan Lipp, Michael Willmann
  • Publication number: 20120169022
    Abstract: The invention relates to an anti-roll bar for a motor vehicle, the anti-roll bar being one-piece or multi-piece and being composed of a torsion rod (12) and bent rotating legs (14) on both sides, the free ends (16) of which can each be connected to a wheel suspension of the motor vehicle by means of swivel joints, wherein the anti-roll bar (11) is formed from a resin-bonded main body. According to the invention, the main body consists of a cord (4), which achieves stiffness by curing the resin. The cord (4) is introduced into a closed tool as a preform and resin is injected into the tool.
    Type: Application
    Filed: September 10, 2010
    Publication date: July 5, 2012
    Applicant: IFA-TECHNOLOGIES GMBH
    Inventors: Christian Schulz, Tom-Hendrik Braun
  • Patent number: 8206228
    Abstract: A multi-part longitudinal drive shaft of a motor vehicle consists of two shaft sections that are each formed by a shaft tube connected with each other by a homokinetic displacement joint. The outer diameter of the shaft tube in the second shaft section is smaller than the inner diameter of the shaft tube of the first section. The outer joint ring of the homokinetic displacement joint is firmly connected with the shaft tube of the first shaft section and a ball hub of the joint is connected with the second shaft section. When a specific axial position is exceeded, the homokinetic displacement joint can be broken down. The individual parts of the two shaft sections can be displaced into one another, after break-down of the homokinetic displacement joint, so that the second shaft section is displaced in the direction of the first shaft section.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: June 26, 2012
    Assignee: IFA-Technologies GmbH
    Inventors: Gerald Langer, Sebastian Frost
  • Patent number: 8167729
    Abstract: A sealing assembly includes a sealing element and its placement in homokinetic joints. This sealing element seals the outer joint part relative to a pipe or a hollow shaft. The sealing element is connected with the outer joint part which is connected with a sealing rolled bellows on the opposite side. In this case, the sealing element is configured as a closure lid provided with a pressed projection, and a set back piece on its outer circumference. This lid includes a cylindrical or turned over shape, and is disposed on the outer joint part of the homokinetic joint by way of the pressed projection and by secondary weld seams of a friction weld or magnetic arc weld that connects the outer joint part with a pipe. This connection is with a shape fit or a force fit whereby the closure lid in the set back partial piece is configured with a circumferential groove as well as with planned breakage points.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: May 1, 2012
    Assignee: IFA-Technologies GmbH
    Inventors: Sebastian Frost, Gerald Langer
  • Patent number: 8161623
    Abstract: In a method of manufacturing an articulated shaft structure for the transfer of torque from a transmission to a differential drive, including a connecting flange having a tube section, a shaft plate disposed between the connecting flange and a transmission output flange and forming a torsion element for accommodating some articulation of the connecting flange relative to the output flange, and a centering part extending from the connecting flange for aligning the articulated shaft relative to a transmission shaft, the connecting flange is formed integrally with the tube section by deep-drawing in follow-on tool the tube section and, in the same manufacturing step, punching openings into the flange, and deep-drawing the centering part and pressing it into the tube section.
    Type: Grant
    Filed: September 19, 2009
    Date of Patent: April 24, 2012
    Assignee: IFA Technologies GmbH
    Inventors: Bernard Bächle, Andreas Mahling, Hans Roth
  • Patent number: 7967686
    Abstract: A longitudinal drive shaft for motor vehicles, for transferring a torque, consists of two or more shaft sections which are connected with one another by way of an intermediate shaft or a journal. The intermediate shaft or the journal is the carrier of a center bearing and is connected to the shaft section by a homokinetic displacement joint rigidly disposed in a pipe. The parts of the center bearing and shaft sections that are displaced in a crash are configured to be smaller than the inside diameter of the pipe. The inside diameter of the outer joint ring is greater than the outside diameters of the roller bearing of the center bearing and of the pipe. The homokinetic displacement joint is sealed off with a sealing cap and a sealing bellows in the direction of the shaft section, and has a closure lid assigned to it.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: June 28, 2011
    Assignee: IFA-Technologies GmbH
    Inventors: Sebastian Frost, Christian Korotwa, Gerald Langer
  • Publication number: 20110009200
    Abstract: A longitudinal drive shaft for motor vehicles, for transferring a torque, consists of two or more shaft sections which are connected with one another by way of an intermediate shaft or a journal. The intermediate shaft or the journal is the carrier of a center bearing and is connected to the shaft section by a homokinetic displacement joint rigidly disposed in a pipe. The parts of the center bearing and shaft sections that are displaced in a crash are configured to be smaller than the inside diameter of the pipe. The inside diameter of the outer joint ring is greater than the outside diameters of the roller bearing of the center bearing and of the pipe. The homokinetic displacement joint is sealed off with a sealing cap and a sealing bellows in the direction of the shaft section, and has a closure lid assigned to it.
    Type: Application
    Filed: September 10, 2010
    Publication date: January 13, 2011
    Applicant: IFA Technologies GmbH
    Inventors: Sebastian Frost, Christian Korotwa, Gerald Langer
  • Publication number: 20100270755
    Abstract: A seal for sealing a cardan shaft housing, particularly at a contact surface between an outer ring and a housing lid, has a first sealing element that at least partially covers the contact surface plane to be sealed, as well as a first shape-stabilizing element that is at least partially firmly connected with the first sealing element. A second sealing element is at least partially firmly connected on the shape-stabilizing element.
    Type: Application
    Filed: April 21, 2010
    Publication date: October 28, 2010
    Applicant: IFA-Technologies GmbH
    Inventor: Reiner Schmid
  • Patent number: 7806772
    Abstract: A homokinetic displacement joint for longitudinal shafts of motor vehicles, has an outer and inner joint body having ball raceways, a cage between the joint bodies, and balls provided in the individual pairs of ball raceways. The balls are guided in the cage and the ball raceways are provided in alternating sequence, alternately rising to the right and left, to form slanted, spatially arranged ball raceways in the assembled state of the joint bodies. The individual ball raceways possess a track slant angle ? 8 and an incline angle ?? 9 that are determined, relative to one another, by the ratio ?:??=5:3.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: October 5, 2010
    Assignee: IFA Technologies GmbH
    Inventors: Sebastian Frost, John Sherlock
  • Patent number: 7713130
    Abstract: Tripod roller for a constant velocity joint in a tripod construction having an interior ring, an exterior ring, and roller bodies arranged therebetween, whereby provided on the interior and on the exterior ring are two mutually opposing annular shoulders that limit the axial movement of the roller bodies in one direction. One of the rings has another annular shoulder for limiting the axial movement of the roller bodies in the other direction, while other ring is axially extended and has a circumferential annular groove in which is received a radially projecting locking ring that laterally overlaps the one ring.
    Type: Grant
    Filed: October 29, 2005
    Date of Patent: May 11, 2010
    Assignees: IFA-Technologies GmbH Haldersleben, Schaeffler KG
    Inventors: Piotr Olszweski, Wolfgang Crackau