Abstract: For a ratchet mechanism for driving adjustment devices for vehicle seats, in particular motor vehicle seats, with a control lever (4) that can be swivelled back and forth and a ratchet (6) movable by this, which cooperates with a gear ring (3) of a driven gear (1), a gear connection is provided between the control lever (4) and the ratchet (6) which engages the ratchet (6) necessarily with the gear ring (3) in an initial area of the swivelling movement of the control lever (4). Only with further swivelling movement of the control lever (4) does the ratchet (6) move on a track about the rotational axis of the driven gear (1) while positively carrying the same. Also the control lever (4) lifts the ratchet (6) from the gear ring (3) necessarily in the starting area of the isle return stroke movement of the control lever (4).
Abstract: A vehicle seat, particularly a motor vehicle seat, with a pair of runners (7) for longitudinal adjustment, a seat-back (3) which can be tilted forward after releasing a locking device, and a runner latching device (10), which is unlatched at release of the locking device to longitudinally displace the seat. A mechanical detection system (12) detects the distance of the momentary seat position from the initial position based on longitudinal displacement, and is active only at release of the locking device. A tracking and blocking device (13) cooperating with the detection system (12) is provided. The latter allows opening and closing of the runner latching device (10) and/or the locking device only at the zero position of the detection system (12).
Abstract: Adjusting and fixing device for seats, like automobile seats, in particular for the adjustment of the back rest. For the adjustment of the back rest vis-a-vis the seat part a fixed mounting is arranged at the seat part. This fixed mounting is joined with an adjustable mounting for the back rest transferring the adjusting movement over a gearing drivable by means of a cam section, defining the position of these mountings related to each other. The gearing includes a radial tooth wheel belonging to a mounting and an internal gear rim of the other mounting catching into the first one, whereby counter toothings are arranged at the mountings. The cam section is formed by two wedge segments inclined against each other and encompassing the bearing point of the adjustable mounting regionally.
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.
March 28, 1997
Date of Patent:
October 6, 1998
Keiper Recaro GmbH & Co.
Rolf Schuler, Heinz Voss, Gerhard Mitulla, Jurgen Stemmer
Abstract: An improved vehicle seating row, in particular an airplane passenger seating row. The seating row is provided with at least one seat which can be displaced in the direction of the cross struts of a framework relative to the neighboring seat between two positions in which the seat row has a maximum or a minimum width and which can be locked in these positions to the framework by means of a latching mechanism, and with a hand lever mounted at one of the two end seat dividers which can be moved to three different tilted positions for actuating of the latching mechanism as well as a manually releasable locking device for the hand lever. The center position of the hand lever is associated with the released state of the latching mechanism and the two other tilted positions are associated with the effective state of the latching mechanism for the installation of the seating row with minimum or maximum widths, respectively.
June 7, 1996
Date of Patent:
September 22, 1998
Keiper Recaro GmbH & Co.
Harald Merensky, Paul Baumlisberger, Gerhard Klein, Peter Miehlke, Frank-Heinrich Schonenberg
Abstract: A seat part is supported at the upper rails of rail arrangements which are arranged at both longitudinal sides of the seat and which comprise, in addition to an upper rail, a lower rail which receives the upper rail in a longitudinally displaceable manner. A locking device which can be disengaged from a row of teeth of each lower rail for the purpose of longitudinal displacement of the seat is arranged at the upper rails. The locking device has a release device which is coupled with toothed arms at swivelably supported locking levers, which toothed arms are spring-loaded in the locking direction. The release device has a two-part release lever formed of a swivelably supported actuating lever and a grip bar or actuating stirrup.
July 16, 1996
Date of Patent:
September 1, 1998
Keiper Recaro GmbH & Co.
Uwe Wittkowsky, Ralf E. Porath, Jochen Scheidler
Abstract: In the case of a seat back for vehicle seats, in particular motor vehicle seats, with two side outriggers (1), which consist of a back and front support (3,4), which are connected in the area of their lower end section through a connecting body (5) and above the connecting body to each other, both the front support (4) and the back support (3) continue into the transverse spar (2), which connects the side outriggers (1) to each other in the area of its upper end. The front support (4) lies above the connecting body (5) and below the transverse spar (2) on a piece of its segment on the back support (3). On transverse parts (6,7) of the back and front supports (3,4) that extend from one side outrigger (1) to the other in the area of the transverse spar (2) are positioned at an interval from one another over each other. Both transverse parts (6,7) are connected to each other so they are rigid by means of a separator (8) abutting on them.
Abstract: A locking device for car seats for use in motor vehicle seats having two parts, which can be adjusted continuously relative to each other. The locking device includes a rail with a row of snap-in holes which extend in the longitudinal direction and are separated from each other by web-like material sections. The device includes locking teeth which can be moved at right angles to the rail and continuously engage with the snap-in hole without play in the direction of adjustment.
Abstract: The stationary articulated part of the articulated fitting is connected at its front end with the seat part so as to be rotatable via a swivel axle. The rear end region cooperates with a stop which is fixed at the seat part. A catch hook which is articulated at the stationary articulated part so as to be swivelable engages the stop and a locking arrangement has an actuating lever which is supported at the stationary articulated part so as to be rotatable and which is spring-loaded in the locking direction. The actuating lever communicates with a locking cam which secures the catch hook. A control arm contacting the stop is held under pretensioning by the spring element which acts upon the actuating lever in the locking direction. In the release position of the catch hook, the actuating lever is held by the catch lever in a releasable manner.
Abstract: In a rail pair for motor vehicle seats, with a lower rail (7) that is to be connected to the vehicle and with an upper rail (2) that is to be connected with the seat and that, in a prestressed state, is supported via guide elements so that it can be shifted longitudinally in lower rail (7) and that is connected in a form-locking manner with lower rail (7) laterally with respect to the longitudinal direction of the rails, there is provided at least one bracing element (11) that is arranged on one of the two rails (2, 7) so that it can be moved only in the lateral direction with respect to the rails and that the other rail (7) can be pressed on with adjustable or preset force.
Abstract: With the case of a vehicle seat, in particular for motor vehicles, consisting of individual structural components that include a seat and a seat back, the latter with connecting joint fittings that may be locked at a desired incline to the seat and swung around a swivel pin running in the transverse direction of the seat, the joint fittings (5) can be chosen from at least two groups, including one from gear fittings and the other from groove fittings (5).
Abstract: A series of vehicle seats, in particular airline passenger seats, which can be adjusted from three seats of normal width to two seats of enlarged width and vice versa, displays a coupling device through which two side parts of the seat back of the middle seat can be connected alternatively with the middle part or the seat backs of both outside seats. The coupling device connects the gear with the hand lever through a telescopically elongatable shaft only in the swinging area of a hand lever used for an adjustment between the middle position and an end position. The elongatable shaft includes a first section equipped with a spline bore hub and a second section that can be shifted axially relative to the first, which is formed on one part of its length like a spline shaft which only meshes with the spline bore hub when the gears connect.
Abstract: The articulated fitting has a stationary articulated part associated with the seat part and a swivelable articulated part associated with the backrest. These articulated parts are connected with one another via an adjusting shaft. An adjusting and locking device which is constructed as a gear unit and determines the position of the two articulated parts relative to one another is provided. The adjusting shaft has an eccentric portion for supporting one articulated part, this eccentric portion being formed by two wedge segments which are inclined relative to one another and engage regions of a driver of the adjusting shaft, by a driver arm engaging between the narrow sides of the wedge segments, and by a torsion spring which spreads apart the broad sides of the wedge segments with its spring legs. Therefore, the invention minimizes the play occurring between the driver arm and wedge segments as a result of operation and manufacture.
Abstract: Articulated fitting for seats having an adjustable backrest, in particular motor vehicle seats. The articulated fitting has an articulated part which is stationary with respect to the seat part and a swivelable articulated part associated with the backrest, these articulated parts being connected with one another via a swivel axle. The position of the two articulated parts relative to one another is determined by an adjusting and fixing device constructed as a gear unit. The swivel axle has an eccentric portion which is formed by two wedge segments which embrace a driver of the swivel axle, by a driver arm engaging between the narrow sides of the wedge segments, by an energy accumulator which presses apart the wide sides of the wedge segments and possibly by a centering segment arranged adjacent to the latter. The swivel axle has a central receptacle serving to connect with a transmission rod so as to be fixed with respect to rotation relative thereto.
Abstract: A catch hook for the releasable locking of the backrest connected with the seat part of a vehicle seat such that the backrest can swivel forward. The catch hook is supported in a swivelably articulated manner at the articulated part of an articulated fitting which possibly comprises an adjusting and locking arrangement for adjusting the inclination of the backrest, this articulated part being connected with the seat part so as to be swivelable. The hook jaw of the catch hook engages around a stop for the articulated part in the locking position, this stop being fixed to the seat part. The locking position is secured in a releasable manner by a retaining lever which acts on the catch hook and is supported at the articulated part so as to be swivelable. In order to minimize the structural component parts required for the catch hook arrangement, the catch hook has a control cam forming the upper side of the hook jaw and projecting beyond the hook finger.
Abstract: Articulated fitting for seats having an adjustable backrest, in particular motor vehicle seats. The articulated fitting arranged on each longitudinal side of a seat has a stationary articulated part associated with the seat part and a swivelable articulated part associated with the backrest, these articulated parts being connected with one another via a swivel axle. The position of the two articulated parts relative to one another is determined by an adjusting and fixing device constructed as a gear unit. The swivel axle has an eccentric portion for supporting one articulated part and the swivel axle of each articulated fitting has a central receptacle serving to connect with a transmission rod so as to be fixed with respect to rotation relative thereto, which transmission rod couples the two articulated fittings of a seat with one another.
Abstract: A vehicle seat, in particular an airplane passenger seat, includes a front crosspiece which extends in crosswise direction to the seat, and a rear crosspiece arranged parallel to the front crosspiece. Both crosspieces are solidly connected with the upper end of at least two feet, and seat dividers also supported by the crosspieces. The rear crosspiece is designed as a profiled tube having longitudinal slots by which the seat dividers and the rear feet are connected. The front crosspiece's longitudinal slot is provided for the connection with the seat dividers, is open toward the rear crosspiece, has flanks extending parallel to each other, and slidingly receives in the direction of the slot depth, a front end-section of the seat dividers.