Patents by Inventor Jurgen Stemmer

Jurgen Stemmer 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).

  • Publication number: 20080136241
    Abstract: A fitting (10) for a vehicle seat, more particularly for a motor vehicle seat, comprises a first fitting part (11), a second fitting part (12) that is in geared connection with the first fitting part (11), a driver (21) and wedge segments (27a, 27b), which at least partly define a cam that is rotatably mounted on the first fitting part (11) for driving a rolling movement of the first fitting part (11) and the second fitting part (12) against one another, and with a first sliding bearing (28) or rolling bearing, by way of which the wedge segments (27a, 27b) are mounted on the second fitting part (12) with a small amount of friction, at least a first (27a) of the two wedge segments (27a, 27b) being mounted on the first fitting part (11) with a small amount of friction by way of a second sliding bearing (41) or rolling bearing.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 12, 2008
    Applicant: KEIPER GmbH Co. KG
    Inventors: Jurgen Stemmer, Rainer Messerschmidt, Tobias Ewald, Grit Scholz, Andreas Norbisrath, Artur Komainda, Holger Finner, Ulrich Lehmann
  • Publication number: 20080136242
    Abstract: The invention relates to a fitting (10) for a vehicle seat, more particularly for a motor vehicle seat, comprising a first fitting part (11), a second fitting part (12) that is in geared connection with the first fitting part (11), an eccentric (27a, 27b; 127; 327) that is rotatably mounted on the fitting parts (11, 12), for driving a rolling movement of the first fitting part (11) and the second fitting part (12), a driver (21) for driving the eccentric (27a, 27b; 127; 327) and a brake for locking the fitting (10) against torque introduced at the output side in the rest state, with at least one wrap-spring brake (44) being provided as the brake, and the brake being acted upon by the driver (21) and the eccentric (27a, 27b; 127; 327).
    Type: Application
    Filed: December 21, 2007
    Publication date: June 12, 2008
    Applicant: KEIPER GmbH & Co. KG
    Inventors: Jurgen Stemmer, Rainer Messerschmidt, Tobias Ewald, Grit Scholz, Andreas Norbisrath, Artur Komainda, Holger Finner, Ulrich Lehmann
  • Publication number: 20070298891
    Abstract: The invention relates to a fitting (10) for the seat of a vehicle, particularly for a motor vehicle, comprising a first fitting part (11), a second fitting part (12) which is mechanically linked to the first fitting part (11), a locking eccentric which is provided primarily to lock the fitting (10), a running eccentric (31) which is primarily provided for driving a relative rolling movement of the second fitting part (12) on the first fitting part (11) in order to adjust the fitting (10), and a driver (21) which controls the locking eccentric at the beginning of the adjusting movement in order to cancel the locking effect and which drives at least the running eccentric (31) during the adjusting movement. The rotating driver (21) impinges upon the rotating running eccentric (31) without any lateral force.
    Type: Application
    Filed: June 22, 2007
    Publication date: December 27, 2007
    Applicant: KEIPER GmbH & Co. KG
    Inventors: Heinz Voss, Tobias Ewald, Ulrich Lehmann, Artur Komainda, Rainer Messerschmidt, Grit Scholz, Andreas Norbisrath, Jurgen Stemmer
  • Publication number: 20070290540
    Abstract: The invention relates to a fitting (10) for the seat of a vehicle, particularly a motor vehicle, comprising a first fitting part (11), a second fitting part (12) which is mechanically linked to the first fitting part (11), a locking eccentric, and a running eccentric (131), wherein the running eccentric (131) is mounted in relation to the first fitting part (11) and second fitting part (12) by way of a rolling bearing or sliding bearing bushing (28,33), wherein friction between the running eccentric (131) and the sliding bearing bushings (28,33) or between at least one sliding bearing bushing (28, 33) and the associated fitting part (11, 12) is lower than the friction between the locking eccentric and at least one of the fitting parts (11, 12).
    Type: Application
    Filed: June 22, 2007
    Publication date: December 20, 2007
    Applicant: KEIPER GmbH & Co. KG
    Inventors: Heinz Voss, Tobias Ewald, Ulrich Lehmann, Artur Komainda, Rainer Messerschmidt, Grit Scholz, Andreas Norbisrath, Jurgen Stemmer, Heinrich Busch, Holger Finner, Dirk Angermann, Markus Vesper, Gregor Vossmann
  • Patent number: 7201079
    Abstract: In the case of a rotary actuator for an adjuster of a vehicle seat, in particular of a motor vehicle seat, having a manually actuatable operating element (7), a transmission gearing (11) on which the operating element (7) acts when actuated, and an output element (9) which is rotated at least intermittently by the transmission gearing (11) and, during a rotation, drives the adjuster (3), the transmission gearing (11) changing during the actuation by the operating element (7) from a higher transmission ratio to a lower transmission ratio, during the actuation by the operating element (7) the transmission gearing (11) runs through two phases during which the transmission ratios are constant in each case.
    Type: Grant
    Filed: February 13, 2006
    Date of Patent: April 10, 2007
    Assignee: KEIPER GmbH & Co. KG
    Inventors: Jürgen Stemmer, Tobias Ewald, Rolf Schüler, Rainer Messerschmidt
  • Patent number: 7114778
    Abstract: In a drive (1) for a vehicle seat adjuster (3), having a manually pivotable drive lever (15), which can be deflected out of a neutral position in order, after an element (35) has engaged in a drive wheel (51), to produce a directed rotational movement of an output element (63), at least one sliding element (35) which is moveable in a translatory manner is provided as the element which is to be engaged.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: October 3, 2006
    Assignee: KEIPER GmbH & Co. KG
    Inventors: Rolf Schüler, Jürgen Stemmer, Rainer Messerschmidt, Michael Berres
  • Publication number: 20060125300
    Abstract: In the case of a rotary actuator for an adjuster of a vehicle seat, in particular of a motor vehicle seat, having a manually actuatable operating element (7), a transmission gearing (11) on which the operating element (7) acts when actuated, and an output element (9) which is rotated at least intermittently by the transmission gearing (11) and, during a rotation, drives the adjuster (3), the transmission gearing (11) changing during the actuation by the operating element (7) from a higher transmission ratio to a lower transmission ratio, during the actuation by the operating element (7) the transmission gearing (11) runs through two phases during which the transmission ratios are constant in each case.
    Type: Application
    Filed: February 13, 2006
    Publication date: June 15, 2006
    Inventors: Jurgen Stemmer, Tobias Ewald, Rolf Schuler, Rainer Messerschmidt
  • Publication number: 20050067871
    Abstract: In a drive (1) for a vehicle seat adjuster (3), having a manually pivotable drive lever (15), which can be deflected out of a neutral position in order, after an element (35) has engaged in a drive wheel (51), to produce a directed rotational movement of an output element (63), at least one sliding element (35) which is moveable in a translatory manner is provided as the element which is to be engaged.
    Type: Application
    Filed: September 30, 2004
    Publication date: March 31, 2005
    Inventors: Rolf Schuler, Jurgen Stemmer, Rainer Messerschmidt, Michael Berres
  • Patent number: 6695275
    Abstract: The present invention pertains to a longitudinal adjustment device for vehicle seats, in which the seat is attached along each of its long sides to runner rails 10, mounted with freedom to slide in guide rails 15, which are attached to the vehicle. Each runner rail 10 has a locking device, which can be released from its connection to the guide rail 15. The locking device comprises a release lever 21, 22, supported with freedom to swivel on each runner rail 10, to move the device into its released position, which lever is to be shifted via rods 31, 32 of an actuating element 30 supported on the runner rails 10. The adjusting moment exerted on the actuating element 30 is transmitted to the rods 31, 32 via a differential, where the rods 31, 32 are disconnected from each other. As a result, each rod can be moved until the locking device has been moved completely into the position in which it is released.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: February 24, 2004
    Assignee: Deiper GmbH & Co.
    Inventors: Rolf Schüler, Jürgen Stemmer
  • Patent number: 6688190
    Abstract: A manual lever drive for an adjusting device on a seat for converting a lifting movement into a discontinuous rotational movement has a support arm and a step-by step mechanism having an output member and an input member. The output member is configured to be coupled with a rotatingly moveable control member of the adjusting device. A transmission member is connected to the input member for torque transmission onto the input member. A manual lever is connected to the support arm so as to pivot about a first axis of rotation. The manual lever is configured to actuate the transmission member. The transmission member is arranged on the input member providing a second axis of rotation. A pivot angle of the manual lever imparts to the transmission member a pivot movement increasing a corresponding pivot angle of the second axis of rotation.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: February 10, 2004
    Assignee: Keiper GmbH & Co.
    Inventors: Bernd Angermann, Dirk Angermann, Detlev Backert, Jürgen Stemmer, Christoph Leibeling, Rolf Schüler
  • Publication number: 20030042387
    Abstract: The present invention pertains to a longitudinal adjustment device for vehicle seats, in which the seat is attached along each of its long sides to runner rails 10, mounted with freedom to slide in guide rails 15, which are attached to the vehicle. Each runner rail 10 has a locking device, which can be released from its connection to the guide rail 15. The locking device comprises a release lever 21, 22, supported with freedom to swivel on each runner rail 10, to move the device into its released position, which lever is to be shifted via rods 31, 32 of an actuating element 30 supported on the runner rails 10. The adjusting moment exerted on the actuating element 30 is transmitted to the rods 31, 32 via a differential, where the rods 31, 32 are disconnected from each other. As a result, each rod can be moved until the locking device has been moved completely into the position in which it is released.
    Type: Application
    Filed: July 8, 2002
    Publication date: March 6, 2003
    Inventors: Rolf Schuler, Jurgen Stemmer
  • Patent number: 5816110
    Abstract: A locking device for vehicle seats, in particular motor vehicle seats, has a row of detent openings and a plurality of spring-loaded bolts which are disposed one behind the other in the direction of this row. The locking bolts engage independently of one another in the detent openings. At least two of these bolts can each engage in one of the detent openings and lock the seat parts without play in both adjusting directions, in any position within the adjusting range of these parts which are to be locked. The seat parts can be continuously adjusted relative to one another. In addition to its movability enabling it to engage in one of the detent openings, each locking bolt has at least one component part which is separately movable. A flat area is provided on each bolt for play-free abutment on the delimiting surface of each detent opening and is brought into abutment with the delimiting surface without altering the depth of penetration of the bolt in the detent opening.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: October 6, 1998
    Assignee: Keiper Recaro GmbH & Co.
    Inventors: Rolf Schuler, Heinz Voss, Gerhard Mitulla, Jurgen Stemmer