Motor vehicle seat with a seat height adjustment

Details Motor vehicle seat with a seat height adjustment Motor vehicle seat with a seat height adjustment

1999-08-23

2001-06-26

Pedder, Dennis H. (Department: 3612)

Land vehicles: bodies and tops

Bodies

Seats with body modifications

C296S065050, C297S216100, C297S216160, C248S422000

Reexamination Certificate

active

06250705

ABSTRACT:

BACKGROUND OF THE INVENTION
The invention relates to a motor vehicle seat with a seat-height adjustment device having two guide bars.
In the case of known motor vehicle seats of this type, a complete seat height adjustment unit is provided on either side of the seat frame consisting of a position adjustment device that may be rotated, and propulsion gearing that works with the latter for the repositioning of both guide bars by pivoting. The repositioning devices of the left and right sides of the seat must be connected to one another by means of a coupling element in such a way as to resist torsion. The use of two complete position adjustment devices for each motor vehicle seat involves a good deal of effort and expense. The coupling element is customarily a rigid connecting rod that interferes with the configuration and the solid attachment of the upholstery.
SUMMARY OF THE INVENTION
In order to prevent the necessity of two complete braces on either side of a seat, it is already known to provide arm inclination adjusters on only one side of a seat, and on the opposite side, a blocking device that is sensitive to inertia (DE 40 31 285 A1).
In addition, for inclination adjustment devices of this type, the provision of a locking device on one side of a seat that is activated by the safety belt is known (DE 37 05 571 A1).
It is an objective of the invention to embody a motor vehicle seat wherein it is possible to dispense with the provision of two complete repositioning devices as well as a connecting element between the latter that is capable of rotation, while assuring, nevertheless, that in the event of a crash, the seat is effectively locked on either side.


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