Abstract: The inclination adjuster for motor vehicle seats having a seat carrier extending at lateral sides of the seat and being pivotable at its rear end about a pivot axle supported for rotation on a guiding track assembly, includes gear segments secured to the lateral sides of the track assembly; a transverse axle supported in horizontal guiding slots in the side walls of the seat carrier and each supporting for rotation a gear pinion; a holding bracket having a vertical cutout defining superposed recesses for receiving the shaft in a selected vertical position of the seat and a free vertical passage; and a hand-operated and spring-biased arresting linkage normally urging the transverse shaft into the selected recess and permitting the movement of the shaft in the guiding slot to adjust the vertical position of the seat when actuated.
Abstract: The adjustable seat having a plurality of position adjusters, such as a backrest adjuster, a front vertical adjuster, a rear vertical adjuster, and a longitudinal-horizontal adjuster includes a common driving motor which is coupled to individual adjusters by means of a power distributing gear unit including a plurality of driving shafts supporting for free rotation meshing gears which are in permanent engagement with a driving pinion of the driving motor. Each of the driving shafts also supports for joint rotation axially movable coupling discs which are normally disengaged from the assigned gears. The gear unit includes a control unit assembled of a plurality of mechanical control devices, each including cam surfaces linked to the coupling discs and being conservatively activated by a sliding member driven by an additional adjustment motor. The sliding member also controls an indication circuit which indicates the individual operative position of respective driving shafts.
Abstract: A drive apparatus has at least two electric motors. There is also a central control common to all motors which lie in series in a closed-circuit energy supply. Each motor has an individual control unit which can be turned on and off from the central control via a control line by an address. Each motor also contains a short-circuit device lying in parallel with its connecting terminals.
Abstract: The hinge mount for a motor vehicle seat having a reclinable seat back comprising a wobble gear assembly which includes an internal gear and a spur gear formed integrally with the assigned hinge member by impressing a wall portion of the hinge member to such a depth that the inner surface of the impressed portion is flush with an outer surface of the hinge member and simultaneously with the precision stamping of the external or internal teeth of respective gears there are formed wall bridges in the interstices between the teeth by a continuous cold pressing process.
Abstract: An arresting device in a longitudinally adjustable guide rail assembly for motor vehicle seats includes a shaft rotatably supported in a stationary bearing plate and driven by a stationary electromotor; the driving pinion of the electromotor is in mesh with an intermediate gear which is supported for free rotation on the shaft; a coupling disk is supported for joint rotation on the shaft and for an axial displacement between the bearing plate and the face of an intermediate gear. The bearing plate portion opposite the coupling disk is provided with a ring of arresting teeth and also the facing side of the intermediate gear is provided with a corresponding toothing. Both sides of the coupling disk are serrated and normally are urged by a cup spring into engagement with the arresting teeth of the intermediate gear.
Abstract: The anchoring means for safety belt buckles for adjustable motor vehicle seat includes a guiding member in the form of a U-shaped slide shoe engageable with a holding rail secured to the vehicle floor. The slide shoe supports for rotation a gear segment and a pinion in mesh with the gear segment. The pinion is movable in a vertically directed onlong slot and engageable with an arresting projection above the upper end of the oblong slot so that during the accelerated motion of the gear segments which are normally coupled to the belt buckles the segments are arrested and the excessive forces are transmitted to the body of the motor vehicle.
Abstract: The arresting device for a forwardly inclinable backrest of a vehicle seat comprises a hook-shaped pawl which is pivotably arranged on a lateral side of hinged mounts for the backrest to engage in the normal position of the backrest a stop member projecting from the seat part. The lower arm of the U-shaped porton of the pawl is provided with a claw which in this normal position engages a corresponding nose of a retaining member which is also pivotably supported on the mounting part and is controlled by a manually operable releasing lever. A tension spring arranged between the pawl and the retaining member urges the pawl into a standby position when the latter is released from engagement with the holding member and also urges the holding member into a ready-to-close position.
Abstract: The anchoring arrangement for safety belts connected to a vertically and longitudinally displaceable vehicle seat comprises a clamping arm connected to the longitudinally adjustable guide rail and projecting toward the seat frame, a clamping lever pivotably connected to the seat frame and having one arm connected to the safety belt. The other arm of the clamping lever is provided with guiding pins slidably engaging two opposite narrow sides of the clamping arm in such a manner as to allow vertical adjustment of the seat but as to clamp the clamping arm if an excessive force is applied against the safety belt.
Abstract: The articulated mountings for vehicle seats includes two hinged parts, one part being formed with a spur gear and the other part with a geared rim of larger diameter and engaging the teeth of the spur gear. The gear rim is mounted for rotation on a pivot axle. The axle supports for joint rotation an eccentric disk which in turn supports for rotation the spur gear. To eliminate backlash in the bearing surfaces and in the meshing teeth of the gears, the eccentric disk is coupled to the pivot axle on a non-circular coupling section which engages two opposite sides of the eccentric recess in the eccentric disk but permits radial displacement of the latter. A setting mechanism preferably in the form of a resilient cushion or in the form of a biasing spring keeps the eccentric disk in its eccentric position.
December 26, 1978
Date of Patent:
October 14, 1980
Keiper Automobiltechnik GmbH & Co. KG
Josef Gross, Heinz Werner, Volker Schmidt, Heinz P. Cremer
Abstract: The anchoring arrangement for safety belts surrounding a vertically and longitudinally adjustable seat in a motor vehicle comprises supporting rail fixedly mounted to the body of the vehicle, a clamping member surrounding the supporting rail and having locking bolts slidably supported on narrow sides of the rail, a swing lever having one arm pivotably connected to the clamping member, a bearing box rigidly connected to the seat and pivotably supporting the fulcrum point of the swing lever, the arm of the swing lever projecting into the bearing box having the form of a gear segment; a first locking pinion is fixedly arranged for rotation in the bearing box and being in mesh with the gear segment, and a second locking pinion supported for rotation at the free end of a splice strap which at its other end is connected to the safety belt; the second pinion being guided in tangential oblong holes in the bearing box and being spring biased to resume a normal position apart from the first locking pinion and in the ev
Abstract: An inertia activated locking device for a motor vehicle seat of the type having a stationary part and an adjustable part, comprising a locking gear coupled to one part, a pinion meshing with the locking gear and being supported for free movement in an arcuate slot the center of curvature of which coincides with the center of rotation of the locking gear, and an arresting member spaced apart from an end of the arcuate slot at such a distance as to allow free rotation of the pinion when the locking gear rotates at a steady speed and to engage the pinion when the locking gear is abruptly accelerated so that it takes along the pinion as far as to the end of the slot facing the arresting member.
Abstract: A drive for an arrangement for adjusting the inclination of a backrest component of a vehicle seat includes a motor and a transmission interposed between the motor and an actuating member of a tilting device incorporated in a hinge which tiltably mounts the backrest component on a seat component of the vehicle seat. The transmission includes a support member which is stationarily mounted on one of the hinge members of the hinge and has an internal gear annulus, an eccentric member rotatably mounted on the support member, and a gear element which is mounted on an eccentric portion of the eccentric member, has an external gear annulus meshing with the internal gear annulus of the support member, and is connected to the actuating member of the tilting device for joint rotation and for relative radial displacement to the extent of the eccentricity of the eccentric portion.
Abstract: Hinge fittings such as disclosed in U.S. Pat. No. 3,999,247 for a vehicle seat having an adjustably tiltable backrest member including pivotally connected hinge members one of which has a toothed sector engaged by a toothed pawl pivotally mounted on the other and held in locked engagement by a cam also pivotally mounted on the other hinge member. The cam has a limited pawl engagement face having an intermediate operative range when all lost motion is taken up with the teeth in full locking interengagement covering the extremities of all tolerance possibilities of the interengaging elements and with irreversible self-locking action against cam disengagement under any vibratory or backrest pivotal tilting pressure in either direction.
Abstract: A hinge fitting for automotive vehicle seats combining the features of small increment recliner adjustment for the backrest, forward tilting of the backrest without release of the adjustment mechanism, and inertia latch means to prevent forward seat tilting under predetermined conditions of vehicle deceleration while permitting free forward tilting when the vehicle is stationary.
Abstract: An apparatus for adjusting the optimal seat position in a vehicle for a particular individual and for particular driving conditions is disclosed. A computer with a memory is programmed with specific vehicle parameters and at least one computer program and includes an entering device for entry into the computer of specific data about the individual user and the driving conditions. The computer supplies output data which may be used for manual adjustment of the seat position or which may be connected via a control device to servomechanisms which automatically optimally position the seat for the individual and the driving conditions.
Abstract: A mechanism for adjusting the inclination of a backrest of a vehicle seat includes two hinges each at one side of the seat and each including two hinge members respectively secured to the seat component and the backrest component of the seat and mounted on each other for tilting. Each of the hinge members has an internal gear annulus, the gear annuli of the two hinge members having the same diameter but different numbers of teeth. A support element is mounted for rotation in the space bounded by the gear annuli and has a cross-sectionally elliptical peripheral surface. An elastic band embedding a plurality of uniformly distributed pins is supported on the peripheral surface of the support member and meshes with both of the gear annuli at the region surrounding the major axes of the elliptical generatrices of the peripheral surface of the support member.The number of pins which engage via the band both internal gear annuli corresponds to the number of teeth of the annulus which has the smaller number of teeth.
Abstract: A hinge for adjustably mounting a backrest component on a seat component of a vehicle seat includes two hinge members respectively connected to the components of the seat. One of the hinge members includes a hinge element and two spur gears which flank the hinge element, are mounted on an eccentric rotatably mounted on the other hinge member, and are connected to the hinge element for joint turning. The other hinge member includes two hinge portions which embrace the hinge element of the one hinge member and each of which has an internal gear annulus which meshes with one of the spur gears. The hinge portions of the other hinge member are turntable relative to one another for eliminating play between the teeth of the spur gears, on the one hand, and of the internal gear annuli, on the other hand.
Abstract: A hinged mount for vehicle seats having reclinable backrest includes a motor driven pivot axle connected to a setting shaft for the angular position adjusting and arresting device. The shaft supports for joint rotation an axially displaceable coupling disk having on each face thereof a ring of coupling teeth. The pinion of the driving motor is in mesh with an idling gear supported on the setting shaft and a cup spring urges the coupling disk into engagement with the idling gear. In the case of accidental rotation of the setting shaft caused by inertial forces acting against the backrest in the case of an accident, for example, the coupling teeth of the coupling disk slide on the toothing of the idling gear and the teeth on the other side of the disk engage an arresting ring which is secured to the reclinable mount part.
Abstract: The hinge for a reclinable backrest of a motor vehicle seat includes two symmetrically bifurcated hinge parts. The first hinge part is connected to an external gear annulus and the second hinge part to an internal gear annulus engaging a part of the teeth of the external gear annulus. An eccentric bolt is rotatable about a pivot axis and has an eccentric control zone supported for rotation in the center bore of the external gear annulus and in the corresponding bores of the first hinge part. The second hinge portion is supported for rotation on the zones of the bolt which are concentric with the pivot axis.
Abstract: An adjustable hinge for interconnecting the back part and seat part of a motor-vehicle seat has a fixed hinge element secured to the seat part and a movable hinge element secured to the back part. The movable hinge element is provided with a pinion having outer teeth centered on a movable axis and is further provided with a disk riveted with the pinion to the movable element and having an outer edge surface also centered on the movable axis. The fixed hinge element has a recess with a circular inner edge surface aligned radially with the outer edge surface of the disk and centered on a fixed axis spaced from the movable axis. Furthermore the fixed hinge element is formed with an array of inner teeth aligned with the outer teeth. The tooth depth is smaller than the spacing between the axes and there are fewer outer teeth than inner teeth.