EP 0517934 B1 19950329 - Dental chair with tilting backrest.
Title (en)
Dental chair with tilting backrest.
Title (de)
Zahnärztlicher Patientenstuhl mit schwenkbarer Rückenlehne.
Title (fr)
Chaîne dentaire avec dossier basculant.
Publication
Application
Priority
EP 91109501 A 19910610
Abstract (en)
[origin: EP0517934A1] The pivoted backrest is supported at an angle to the seat (1) via a carrier (25), also allowing the backrest to more backwards and forwards relative to the seat (1). Both the seat (1) and the carrier (25) has a curved surface with a cooperating guide (37,41) allowing the backrest to more inwards towards the seat (1) as it is pivoted backwards and to move away from the seat (1) as it is pivoted forwards, with the print about which the backrest is pivoted moving in an open spiral curve. The carrier cam pivot as it is linked via a lead screw (39) with a motor drive comprising four motors (16-19) electronically controlled (20) in dependence on the actuation of individual. Keys (21-23) or programmed keys (P1-P3) located in the chair armrest.
IPC 1-7
IPC 8 full level
A61G 15/04 (2006.01); A47C 1/024 (2006.01); A61G 15/02 (2006.01)
CPC (source: EP US)
A47C 1/0242 (2013.01 - EP US); A61G 15/02 (2013.01 - EP US)
Designated contracting state (EPC)
DE DK FR IT SE
DOCDB simple family (publication)
EP 0517934 A1 19921216; EP 0517934 B1 19950329; DE 59105058 D1 19950504; DK 0517934 T3 19950821; JP 2600697 Y2 19991018; JP H0556127 U 19930727; US 5348375 A 19940920
DOCDB simple family (application)
EP 91109501 A 19910610; DE 59105058 T 19910610; DK 91109501 T 19910610; JP 4608292 U 19920608; US 89080992 A 19920601