Back support for seat-backs, in particular for motor vehicle...

Details Back support for seat-backs, in particular for motor vehicle... Back support for seat-backs, in particular for motor vehicle...

1998-12-09

2001-05-08

Nelson, Jr., Milton (Department: 3624)

Chairs and seats

Bottom or back with means to alter contour

Providing support for lower back region

C297S284100

Reexamination Certificate

active

06227617

ABSTRACT:

TECHNICAL FIELD
The invention concerns a lumbar support for seat backs in accordance with the introductory clause of Claim
1
.
STATE OF THE ART
In seat backs of this nature, it is known to adjust the arch of the support plate by means of a drive motor such that the crown of the support plate stands forward in the direction of the user's back to a greater or lesser extent. Also known for this process is a motor drive, which however has the disadvantage that it must be housed outside of the support plate's area because of the size of the motor.
THE INVENTION
Based on this state of the art, the object of the invention is to design a backrest of the type specified as known in such a way that the drive is built small enough that it can be housed completely behind the arch of the support plate.
This object is achieved with the features of the novelty portion of Claim
1
.
In addition to a motor drive solely for the arch of the support plate, it is also possible in the same manner to provide an additional motor drive for height adjustment of the support plate.
Preferred embodiments of the invention are shown by the dependent claims.


REFERENCES:
patent: 4632454 (1986-12-01), Naert
patent: 5217278 (1993-06-01), Harrison et al.
patent: 5314263 (1994-05-01), Susuki
patent: 5364162 (1994-11-01), Bar et al.
patent: 5567011 (1996-10-01), Sessini
patent: 5704687 (1998-01-01), Klinger
patent: 9408492 (1994-04-01), None

Affiliated with

Also associated with

Rating

Back support for seat-backs, in particular for motor vehicle... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Back support for seat-backs, in particular for motor vehicle..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Back support for seat-backs, in particular for motor vehicle... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2477589