Keiper Automobiltechnik Gmbh & Co Kg

Keiper Kg

Keiper Automobiltechnik Gmbh

Paul Werner

Willibald Strowik

Heinz P Cremer

Gerhard Lehmann

Egon Wirtz

Willibald Strowick

Wolfgang Hensel

The invention relates to a frame for a longitudinally and height-adjustable vehicle seat, having a bracket which is pivotable about a lateral axis. This frame is supported on the lateral axis and on respective height adjustment racks which are spaced from the lateral axis on either side of the seat and extend in the pivot direction thereof. The racks each mesh with respective gears of a height adjustment drive connected with the bracket. The frame also has guide rails in which respective runners are longitudinally guided, each of which, together with a longitudinal adjustment rack, forms a structural unit. Respective gears of a longitudinal adjustment drive, connected with the guide rails, engage these racks.

Frame for a longitudinally and height-adjustable vehicle seat

The potentiometer and reduction gear unit for use in connection with a seat adjuster driven by a servomotor and controlled by a microprocessor which recallably stores the value measured by the potentiometer, comprises a common housing assembled of two parts arranged about the driving shaft of the motor; one housing part accommodates the reduction gears and the other part supports a ringshaped resistor and a contact ring; the slider of the potentiometer bridges the contact ring and resistor ring and is frictionally coupled to the output member of the reduction gears, formed preferably as a wobble gear mechanism.

Motor-driven adjustable seat, particularly a motor vehicle seat

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.

Anchoring arrangement for safety belts in a motor vehicle

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. The gear element may have a plurality of pins affixed thereto, and an output element jointly rotatable with the actuating member may have a corresponding plurality of apertures therein which receive the pins and each of which has a diameter exceeding that of the pin received therein by twice the eccentricity of the eccentric portion of the eccentric member.

Power driven adjuster for a backrest of a vehicle seat

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.

Adjustable hinge mount for a seatback

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. An elongated body of elastically yieldable material is connected, at its ends, to the hinge portions of the other hinge member and maintains the same in the respective play-eliminating position relative to one another.

Adjustable hinge for a backrest of a vehicle seat

A motor-vehicle seat hinge has an upper hinge element secured to the back part of the seat and a lower hinge element secured to the seat part, a positioning plate securable at any of a plurality of angularly offset positions and coacting with an abutment on the upper element to define the rest position for the seat back. An inertial two-arm pawl is pivoted on the upper hinge element and has on one arm a stop face which is engageable with the positioning plate in a blocking position of this pawl to prevent forward pivoting of the seat back. The other arm of the pawl is weighted so as normally to pivot from this blocking position into a freeing position when The back part is slowly pivoted forwardly but to resist due to its inertia the change of its position when the back part is subject to an abrupt forward movement.

Inertially locked hinge for motor-vehicle seat

An adjustable seat is mounted on a base for adjustment of its position longitudinally of a motor vehicle, by means of two guiding arrangements, each located at one side of the seat and each including a front guide track and a rear guide track. The seat is arrestable in a multitude of adjusted positions by at least one arresting mechanism which includes a rack mounted on the base, a pinion mounted on the seat for rotation in mesh with the rack, a ratchet connected to the pinion for joint rotation therewith, and a pawl displaceably mounted on the seat and engaging the ratchet to arrest the seat in any selected one of the multitude of adjusted positions. The rack may extend parallel to one of the guide tracks and then a support member which supports the seat on this guide track may be mounted coaxially with the pinion. Another such arresting mechanism may be arranged at the opposite side of the seat from the above arresting mechanism, and a shaft may interconnect the pawl of the two arresting mechanism for simultaneous displacement.

Arrangement for fine-adjusting the longitudinal position of a vehicle

A motor-vehicle seat has a seat part and a back part interconnected by means of a hinge having a first hinge element secured to one of these parts and a second hinge element secured to the other part and pivotal on the first element about a horizontal axis. One of these elements is formed as a ring gear with an annular array of inwardly directed teeth and the other element carries a plurality of individually pivoted pawls which can be swung radially outwardly into mesh with these teeth to lock the two elements relative to each other. A cam is provided for radially pivoting these pawls to lock the seat back in any position relative to the seat part. Each pawl has a pivot pin secured in the respective hinge element which is also provided with a plurality of formations adjacent the front ends of these pawls so that even if the pivot pins of the pawls break off the pawls will be supported inside the hinge and the two hinge elements will not be able to pivot relative to each other.

Motor-vehicle seat hinge

A seat has a seat element and a back element which is to be tiltable forwardly and rearwardly relative to the seat element. Two hinges are provided at the opposite sides of the seat and each includes a first hinge member on the seat element and a cooperating second hinge member on the back element. Each hinge has an arrangement which connects the first and second hinge members thereof for relative pivoting and which includes a first gear turnable with one of the hinge members and a second gear turnable with the other hinge member, the two gears having cooperating annuli of gear teeth which mesh with one another. One of the gears can be disengaged from its associated hinge member so that the latter can turn freely relative to this gear. The arrangement for this purpose includes a first abutment system which normally connects the gear to the associated hinge member, and a second abutment system which also normally connects the gear to the associated hinge member. One operating arrangement permits the first abutment system to be disengaged so as to permit the associated hinge member and hence the back element to pivot forwardly and another operating device permits the second abutment system to be disengaged to permit rearward tilting of the back element.

Tiltable seat

A free wheel drive arrangement for a turnable member, especially for adjusting the position of backrests or window panes in automotive vehicles, includes a carrier arm tiltable about the axis of a circular adjusting member and a driving arm eccentrically mounted on the carrier arm for tilting movement with respect thereto between an active position, engaging the turnable member to turn the latter about its axis during turning of the driving arm with said carrier arm in one direction, and a free wheeling position, in which the driving arm is disengaged from the turnable member during turning of the driving arm with the carrier arm in a direction opposite to the one direction. Cooperating abutment means on the driving arm and the carrier arm maintain the driving arm in the free wheeling position during turning of the driving arm with the carrier arm in this opposite direction.

Growing community of inventors

Remscheid, Germany

Paul Werner