PROBLEM TO BE SOLVED: To elevate and lower a partition interlocking with the opening and closing of the rotary door of a housing part housing a dental treatment unit.SOLUTION: A partition elevating/lowering means comprises a pantograph type linking mechanism for which the almost center parts of two links respectively are connected so as to be freely turned through a pin. In the pantograph type linking mechanism, the lower end of one (a) of the two links (a) and b is connected to the lower end of a door frame 10 so as to be freely turned, and the other end is engaged with a horizontally long hole 8 formed at the lower end of the partition 5 freely slidably through a slide pin 9. Also, the upper end of the other link b is connected to the lower end of the partition 5 so as to be freely turned, and the other end is connected to a female screw 13 screwed to a screw shaft 12 rotated interlocking with the rotation of a guide wheel 11 so as to be freely turned. One end of the link b is moved forward and backward by the female screw 13 moved in the horizontal direction by rotating the screw shaft 12 by the rotation of the guide wheel 11, and the partition 5 is elevated and lowered at the other end of the links (a) and b.COPYRIGHT: (C)2008,JPO&INPIT【課題】歯科診療ユニットを収納する収納部の回転扉の開閉に連動してパーテーションを昇降させる。【解決手段】パーテーションの昇降手段は、2本のリンクそれぞれの略中央部がピンを介して回動自在に連結されたパンタグラフ式リンク機構から成り、該パンタグラフ式リンク機構は2本のリンクa,bのうち一方のリンクa下端が扉フレーム10の下端に回動自在に連結されかつ他端がパーテーション5の下端に形成された横長穴8にスライドピン9を介して摺動自在に係合され、また他方のリンクb上端がパーテーション5下端に回動自在に連結されかつ他端が案内車11の回転に連動回転するネジ軸12に螺合する雌ネジ13に回動自在に連結されて成り、案内車11の回転にてネジ軸12を回転することにより水平方向に移動する雌ネジ13にてリンクbの一端を進退動させ、リンクa,bの他端にてパーテーション5を昇降させる。【選択図】図1
