Dental patient chair with a pivotable backrest

Chairs and seats – Movable back – Tiltable

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

29734414, B60N 202

Patent

active

053483758

ABSTRACT:
A dental patient chair is provided with a backrest which is arranged inclinably with a backrest carrier on a seat and is adjusted toward and away from the seat so that the backrest carrier and seat are each, respectively, provided with a curved path in which appropriate guide elements are allocated. As a result, the backrest carrier is moved under the seat when the backrest is inclined backward and, in turn, is withdrawn from within the seat when the backrest is moved forward to an upright position. In order to achieve an optimum motion sequence of the backrest, the curvature of the two curved paths of the seat and the backrest are designed so that the momentary pole around which the backrest turns when being inclined is not constant but, on the contrary, moves on a section of a spiral curve which preferably opens upward and proceeds in the same direction as the incline motion of the backrest.

REFERENCES:
patent: 2341465 (1944-02-01), Monnot
patent: 3284135 (1966-09-01), Hiramatsu
patent: 3494663 (1970-02-01), Flint
patent: 3630569 (1971-12-01), Lory
patent: 3719391 (1973-03-01), Neri
patent: 4372608 (1983-02-01), Hotta
patent: 4471994 (1984-09-01), Zund et al.
patent: 4494795 (1985-01-01), Roossien et al.
patent: 4572573 (1986-02-01), Yoshikawa et al.
patent: 4681369 (1987-07-01), Simpson
patent: 4747640 (1988-05-01), Locher
patent: 4962963 (1990-10-01), Robinson
patent: 5015035 (1991-05-01), Stoeckl et al.
patent: 5024484 (1991-06-01), Buchacz

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Dental patient chair with a pivotable backrest does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dental patient chair with a pivotable backrest, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dental patient chair with a pivotable backrest will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2429312

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.