Patents Assigned to C. Rob. Hammerstein GmbH & Co. KG
  • Patent number: 8061770
    Abstract: A motor vehicle seat having an underframe comprising at least one base and at least one rear rocker, which is connected to the base through a rear pivot axis, a seat carrier carried by the underframe, a seat back connected to the seat carrier, and a drive device. A crash sensor controls the drive device. In the event of a crash, the drive device pivots the seat carrier inclusive of the seat back about the rear pivot axis, and a seat front edge of the seat carrier is raised at least 10 mm relative to the base.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: November 22, 2011
    Assignees: C. Rob. Hammerstein GmbH & Co. KG, Bentley Motors Limited
    Inventors: Robert Houston, Tony Phillip
  • Patent number: 8020935
    Abstract: An electrically height-adjustable head rest device of a motor vehicle seat having a head rest, one or two bars carrying the head rest, a cross member, which is connected to at least one bar and comprises an internal thread, and a motor-spindle unit comprising a spindle engaging the internal thread. On the cross member and/or on the motor-spindle unit there is provided a guide seat for a guide part.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: September 20, 2011
    Assignee: C. Rob. Hammerstein GmbH & Co. KG
    Inventors: Burckhard Becker, Wilfried Beneker, Van-Toan Ho
  • Patent number: 8016358
    Abstract: A forward tiltable motor vehicle seat has a seat carrier and a seat back, a hinge mounting is associated with the seat back and comprises an upper hinge arm connected to the seat back and a lower hinge arm hinged about a forward tilt axis to the seat carrier. The seat carrier forms a clamping flank. A cam is provided and is movable between a stop position and a release position. The cam is disposed on the lower hinge arm and rests against the clamping flank in the stop position.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: September 13, 2011
    Assignee: C. Rob. Hammerstein GmbH & Co., KG
    Inventors: Wilfried Beneker, Burckhard Becker
  • Publication number: 20110198900
    Abstract: The invention relates to a base body of a headrest of a vehicle seat having a base, particularly for receiving headrest carriers for arranging the headrest at a vehicle seat, and a support body having a support surface for a head. In order to provide a base body for a headrest and a headrest, which in the case of a crash reduces the risk of cervical spine injuries, it is provided that the support body is connected to the base such that the support surface is elastically adjustable relative to the base.
    Type: Application
    Filed: February 11, 2011
    Publication date: August 18, 2011
    Applicant: C. Rob. Hammerstein GmbH & Co. KG
    Inventors: Ralf Trimborn, Rolf Steinmetz
  • Patent number: 7997648
    Abstract: An adjustment device for a seat depth adjustment of a motor vehicle seat that has (a) a seat pan comprising a seat part and a supporting plate, the supporting plate being slidably connected to the seat part via a guide in a longitudinal direction and (b) an electric gear motor comprising a pinion. The seat part comprises a first gear plate. The supporting plate comprises a second gear plate. The guide has a left and a right profile and a left and a right counterprofile. A toothed rack extending in the same direction is associated with each counterprofile. The teeth of the two toothed racks face each other. Each toothed rack engages a gear wheel. One of the gear wheels engages an idler gear. The other gear wheel and the idler gear engage the pinion of the gear motor.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: August 16, 2011
    Assignee: C. Rob. Hammerstein GmbH & Co. KG
    Inventors: Burckhard Becker, Wilfried Beneker, Frank Peters
  • Patent number: 7971843
    Abstract: A longitudinal guide for motor vehicle seats having a bottom rail and a seat rail that are displaceable with respect to each other in one longitudinal direction. The motor vehicle seats are adjustable in a longitudinal direction and are also removable from the longitudinal guide. Detents are formed in the bottom rail. The seat rail comprises a base part and a supporting part. The base part has at least one front and at least one rear transverse bolt, which cooperate with the detents. The base part is adjustable with respect to the supporting part between a lower position, in which the transverse bolts are not engaged with the detents, and an upper position, in which the transverse bolts engage detents. Only in the lower position is the seat rail displaceable with respect to the bottom rail.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: July 5, 2011
    Assignee: C. Rob. Hammerstein GmbH & Co. KG
    Inventors: Burckhard Becker, Robert Houston, Stefan Pietas
  • Patent number: 7966900
    Abstract: An actuator for a motor vehicle with an electric motor having an output shaft, a gearbox that is connected to the output shaft that includes a spindle nut, and a spindle that engages the spindle nut. The spindle nut comprises one main portion and at least one axial socket. The axial socket: (a) is solidly connected to the main portion, more specifically is integral with the main portion, (b) comprises an internal thread cooperating with the spindle and (c) is configured to be radially elastic. An elastic element is provided which fits against the axial socket and pushes the internal thread thereof into engagement with the spindle.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: June 28, 2011
    Assignee: C. Rob. Hammerstein GmbH & Co. KG
    Inventors: Burckhard Becker, Thomas Arndt
  • Patent number: 7963604
    Abstract: The forwardly movable motor vehicle seat has a seat back (20) and a seat frame with a seat pan. The motor vehicle seat may be moved between a normal position of utilization and a forwardly moved position. An immobilizing device is associated with the seat frame. In particular, the seat back (20) has a seat back hinge (32) and a stopper device (40). The stopper device (40) retains the seat back (20) in the forward tilted position as long as the seat frame is located in a front portion of the travel path. The stopper device (40) enables said seat back to tilt upward into the normal position of utilization when the seat frame is located in a rear portion (74) of the travel path. The stopper device (40) has a first limit stop and a second limit stop, one limit stop being disposed on the seat frame and the other one on the seat back (20).
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: June 21, 2011
    Assignee: C. Rob. Hammerstein GmbH & Co. KG
    Inventors: Burckhard Becker, Kornel Zalavari, Michael Leng
  • Patent number: 7938034
    Abstract: The actuator for a motor vehicle has an electric motor driving an output shaft and a transmission comprising a worm, a spindle nut and a spindle. The worm is rotatably connected to the output shaft. The spindle nut comprises a worm gear that engages the worm and also a spindle thread that engages the spindle. The worm has a worm axis and the spindle nut has a spindle nut axis. The worm axis and the spindle nut axis draw an angle alpha of between about 85 ° and about 5° and, in one embodiment, between about 70° and about 40° .
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: May 10, 2011
    Assignee: C. Rob. Hammerstein GmbH & Co. KG
    Inventors: Burckhard Becker, Wilfried Beneker
  • Patent number: 7902781
    Abstract: An adjustment device for a motor vehicle seat that includes an electric motor, a gear connected to the electric motor, a mechanical adjustment unit connected to the gear and a control circuit, at least one sensor being associated with the control circuit for detecting a critical situation of the motor vehicle and the control circuit providing an operating voltage for the electric motor, characterized in that the control circuit provides as an alternative, in addition to the normal operating voltage, an overvoltage for supplying the electric motor, that the normal operating voltage applies in a normal driving condition of the motor vehicle in which the sensor does not deliver any signal, that the overvoltage applies at the electric motor in a driving condition after the sensor has delivered a signal indicating that the driving condition is no longer normal and that the overvoltage is at least 150% of the value of the normal operating voltage, more specifically at least 200% of the value of the normal operating
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: March 8, 2011
    Assignee: C. Rob. Hammerstein GmbH & Co. KG
    Inventors: Wilfried Beneker, Burckhard Becker, Michael Reimann
  • Patent number: 7874621
    Abstract: The seat depth adjustable motor vehicle seat comprises a first seat part, a second seat part and a longitudinal adjustment device interposed between the first seat part and the second seat part and allowing for displacement movement in a first seat direction of the first seat part relative to the second seat part. The seat further comprises a toothed rack connected to the second seat part and extending substantially in the first seat direction. A primary gear meshes with the toothed rack. A secondary gear is in rotating communication with the primary gear. A toothed bar extends substantially in a second seat direction and engages the secondary gear. A third seat part is slidably disposed in the second seat direction and is connected to the toothed bar.
    Type: Grant
    Filed: December 14, 2008
    Date of Patent: January 25, 2011
    Assignee: C. Rob. Hammerstein GmbH & Co. KG
    Inventors: Markus Gumbrich, Stefan Gebauer, Nils Magnus
  • Patent number: 7837268
    Abstract: The hinged mounting for a seat back hinge of a motor vehicle seat has a first hinge arm and a second hinge arm; it further has a circular blank that is interposed between said hinge arms. The circular blank has a first circular blank plate that is connected to the first hinge arm, a second circular blank plate that is associated with the second hinge arm, a retaining means for keeping the two circular blank plates together in the axial direction and a releasable stopper device. The second circular blank plate comprises at least one retaining side. The retaining means is rigidly connected to the second circular blank plate. Between the annular region and the second circular blank plate there is formed a circumferential groove in which the first circular blank plate is retained for rotation. The retaining means stiffens the second circular blank plate.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: November 23, 2010
    Assignee: C. Rob. Hammerstein GmbH & Co. KG
    Inventors: Burckhard Becker, Wilfried Beneker
  • Patent number: 7810881
    Abstract: A frame of a motor vehicle seat for a motor vehicle including a hinge mounting having a hinge arm, and further including a structure part, said structure part being connected to the hinge arm in a connection region, the connection region being rigid when subjected to a load below a threshold value that occurs at accelerations in a normal driving condition of the motor vehicle and the connection region being compliant when subjected to bending loads at values occurring at accelerations of the motor vehicle occurring in an event of an accident, whereby the connection region includes a tongue that projects from one of the hinge arm and the structure part, and further includes a holding device that is provided on the one of the hinge arm and the structure part on which the holding device is not provided.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: October 12, 2010
    Assignee: C. Rob. Hammerstein GmbH & Co. KG
    Inventors: Wilfried Beneker, Nils Magnus
  • Patent number: 7775592
    Abstract: The invention relates to a seat frame of a motor vehicle seat with a seat carrier having two side parts that are oriented transverse to a front axis and to a rear axis, a pivotal bridge being pivotal about at least one of said axes, said bridge comprising a tie bar and two side arms, and with an adjustment device having a motor-driven drive unit. The drive unit is arranged for pivotal movement about a hinge shaft that is substantially centered on that axis of the two axes about which said pivotal bridge is pivotal. Said hinge shaft is shorter than the distance between the two seat parts and is not in contact with said two seat parts, but if at all with only one side part. There is provided at least one inner arm that connects said tie bar to said hinge shaft and is located in proximity to said drive unit.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: August 17, 2010
    Assignee: C. Rob. Hammerstein GmbH & Co. KG
    Inventors: Burckhard Becker, Wilfried Beneker
  • Patent number: 7775131
    Abstract: An actuator for a motor vehicle, more specifically for a motor vehicle seat. The actuator comprises an electric motor having an output shaft, a gear that is connected to the output shaft and including a gear housing having two partially cylindrical exterior surfaces, and a spindle that communicates with the gear, the spindle defining a threading and runs transversely with respect to the output shaft. Further, the actuator comprises a gear retainer that (a) forms a surrounding grip around the gear housing, in which (b) the gear housing is held pivotal about a pivot axis that runs parallel to the output shaft, that (c) has two partially cylindrical interior surfaces, each mating the exterior surfaces against which they fit, and that (d) includes a recess or two recesses for the passage of the spindle. The gear retainer has fastening holes running parallel to the pivot axis.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: August 17, 2010
    Assignee: C. Rob Hammerstein GmbH & Co. KG
    Inventors: Burkhard Becker, Wilfried Beneker
  • Patent number: 7755233
    Abstract: An adjustment device for a motorized vehicle seat has an electric motor and a gear connected to the electric motor. The electric motor has a nominal speed of more than 12,000 rpm, in particular of more than 15,000 rpm at nominal voltage.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: July 13, 2010
    Assignee: C. Rob. Hammerstein GmbH & Co. KG
    Inventors: Michael Reimann, Wilfried Beneker, Burckhard Becker
  • Patent number: 7740316
    Abstract: In the integrated car seat with a lengthwise adjustment mechanism having two pairs of rails, with a bottom support frame having two front pivotal supports, two rear pivotal supports and two side parts carried on the pivotal supports, with a seat back connected to the side parts by a seat back joint and with a seat belt buckle, the side part is configured in the shape of a shell on the seat side that is turned away from the buckle, the side part having a bottom and a perimeter profile rim. The side part turned away from the buckle is open toward the outside, the outside preferably meaning the outboard side of the seat.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: June 22, 2010
    Assignee: C. Rob. Hammerstein GmbH & Co. KG
    Inventors: Wilfried Beneker, Burckhard Becker, Jörg-Max Wölfel
  • Patent number: 7722006
    Abstract: A catch device of a lengthwise adjustment mechanism of a motor vehicle seat comprises a first pair of rails and a second pair of rails, each having a bottom rail and a seat rail. A first detent ledge is associated with the bottom rail and comprises first detent openings and first detent webs. A first stopper unit is disposed in proximity to the first detent ledge and cooperates therewith, comprises two stopper teeth for engaging the first detent openings independently of one another and for disengaging therefrom together and is associated with the seat rail of the first pair of rails. A second detent ledge is associated with the bottom rail of the second pair of rails and comprises second detent openings and second detent webs. A second stopper unit is disposed in proximity to the second detent ledge and cooperates therewith, comprises a stopper means for engaging and disengaging the second detent openings and is associated with the seat rail of the second pair of rails.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: May 25, 2010
    Assignee: C. Rob. Hammerstein GmbH & Co. KG
    Inventors: Wilfried Beneker, Burkhard Becker
  • Patent number: 7717508
    Abstract: The invention relates to a headrest of an automotive vehicle seat, said headrest comprising the following features: a carrier structure comprising at least one bar and being connected to a supporting member, said carrier structure being connected to said supporting member through at least one guide region and said supporting member being movable with respect to said carrier structure along a linear forward path of travel from a normal position of utilization into an accident position in which said supporting member is located both in the x direction and in the z direction in front of the position of utilization, a drive unit being provided, said drive unit comprising a tension spring and a blocking device, said blocking device comprising a first blocking part and a disengagement device, said first blocking part comprising an oblong opening through which engages a driver member of said carrier structure, in the position of utilization the tensile force of said tension spring abutting on said first blocking par
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: May 18, 2010
    Assignee: C. Rob. Hammerstein GmbH & Co. KG
    Inventors: Burckhard Becker, Rolf Steinmetz, Thomas Thiel
  • Patent number: 7699398
    Abstract: The invention relates to a backrest unit for a motor vehicle seat, in particular a rear seat comprising a backrest and support connected thereto. A guide rail is arranges on the rear surface of the backrest on an x-z plane. A slide is movably mounted on the guide rail and is lockable therein in different positions. When a control device associated with the slide is actuated, it brings the slide from a normally locking position into a released position. A support comprises a near end which is hinged on the slide and a distant end which is fixable to a bodywork part.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: April 20, 2010
    Assignee: C. Rob. Hammerstein GmbH & Co. KG
    Inventors: Jörg Sokolla, André Dick, Lutz Jonas, Andreas Müller, Burckhard Becker