Chairs and seats – Headrest – Angularly movable about horizontal axis
Patent
1988-07-21
1989-06-20
Aschenbrenner, Peter A.
Chairs and seats
Headrest
Angularly movable about horizontal axis
248118, 2482811, 297391, A47C 738
Patent
active
048404292
ABSTRACT:
The invention is directed to an adjustable head support for a dental treatment chair, which is a reclining chair with an adjustable head rest or support. In order to better match the kinematics of the adjustable head support to a natural tilting motion of a patient's head, it is proposed that a quadrilateral linkage pivotally connects an upper region of the back rest to the head rest and the connection of the linkage to the head rest is shifted as the head rest tilts to cause a point on the head rest to move in an arc having a center roughly in the cervical vertebra joint of the patient lying in the chair.
REFERENCES:
patent: 3065029 (1962-11-01), Spound et al.
patent: 3817576 (1974-06-01), Ciavattoni et al.
patent: 4366985 (1983-01-01), Leffler
patent: 4466663 (1984-08-01), Oishi et al.
patent: 4515406 (1985-05-01), Fujiyama
patent: 4720146 (1988-01-01), Mawbey et al.
patent: 4733913 (1988-03-01), Tateyama
Aschenbrenner Peter A.
Rendos Thomas A.
Siemens Aktiengesellschaft
LandOfFree
Motor-adjustable head support for a dental treatment chair does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Motor-adjustable head support for a dental treatment chair, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motor-adjustable head support for a dental treatment chair will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-521652