Tiltable lift seat devices

Details Tiltable lift seat devices Tiltable lift seat devices

1990-08-31

1993-01-12

Herrmann, Allan D.

Machine element or mechanism

Mechanical movements

Reciprocating to or from oscillating

248561, 248575, 297339, 297DIG10, F16H 2144, A47C 300

Patent

active

051780259

ABSTRACT:
A seating device for aged, infirm and handicapped persons includes a passive, pivotably mounted, energy storage device laterally disposed below a seat base, and a parallelogram linkage between the seat base and a chair seat for controlling elevation and tilting motion of the seat. A lever which can be coupled at selectable points along an arc about the pivot point of the energy storage device exerts torque on the parallelogram linkage to oppose downward movement and aid upward movement. By varying the position of engagement of the energy storage device to the lever, the force exerted can be adjusted to the weight of the user.

REFERENCES:
patent: 695987 (1902-03-01), Winslow
patent: 1197818 (1916-09-01), Grisell
patent: 1952070 (1934-03-01), Hruska
patent: 2547089 (1951-04-01), Oberst
patent: 4309057 (1982-01-01), Lindley
patent: 4454781 (1984-06-01), Orii
patent: 4581778 (1986-04-01), Pontoppidan
patent: 4632455 (1986-12-01), Schiller et al.
patent: 4690457 (1987-09-01), Poncy et al.
patent: 4752100 (1988-06-01), Lemaire
patent: 4786107 (1988-11-01), Crockett

Affiliated with

Also associated with

Rating

Tiltable lift seat devices does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tiltable lift seat devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tiltable lift seat devices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1212707