PROBLEM TO BE SOLVED: To provide a dental treatment chair which allows even an elderly patient or a patient having difficulty in standing up by himself or herself because of trouble in legs and lower back to easily stand up from or sit down on.SOLUTION: The dental treatment chair is provided with a back plate, a seat, a leg rest, a head rest, and a vertically moving part. The back plate, the seat, the leg rest, and the head rest are entirely moved up and down by the vertically moving part. In the dental treatment chair, a stand-up and sit-down auxiliary device provided with a pad part supporting a patient body, a pad support part, a pad vertically moving part, and a pad drive mechanism part capable of vertically moving the pad part in an oblique direction is provided at a desired position. The pad part moves obliquely upward in synchronization with moving up of the vertically moving part of the dental treatment chair, and the pad part moves obliquely downward in synchronization with moving down of the vertically moving part of the dental treatment chair.COPYRIGHT: (C)2011,JPO&INPIT【課題】高齢者や足腰が不自由で自力で起立することが困難な患者でも容易に歯科治療椅子に起立および着座することができる歯科治療椅子を提供する。【解決手段】背板、座部、レッグレスト、ヘッドレスト及び昇降部を備え、該背板、該座部、該レッグレスト及び該ヘッドレスト全体が昇降部によって上下移動可能に構成された歯科治療椅子において、患者の体を支えるパッド部と、パッド支持部と、パッド昇降部と、該パッド部を斜め方向に上下移動可能なパッド駆動機構部を備える起立および着座補助装置を所望の位置に設け、該歯科治療椅子の昇降部の上昇に連動して該パッド部が斜め上方へ移動、及び/または、該歯科治療椅子の昇降部の下降に連動して該パッド部が斜め下方へ移動する。【選択図】図1
