公开(公告)号：US5346283A

公开(公告)日：1994-09-13

申请号：US883395

申请日：1992-05-15

申请人： Ulrich Steininger ,  Klaus Stoeckl ,  Tilman Phleps

发明人： Ulrich Steininger ,  Klaus Stoeckl ,  Tilman Phleps

IPC分类号： A47C1/036 ,  A47C7/38 ,  A61G15/12

CPC分类号： A47C7/38 ,  A47C1/036 ,  A61G15/125

摘要： A dental patient chair has an adjustable headrest on a headrest carrier. The headrest is pivotably hinged around a transverse first axis on a bracing member which, in turn, is adjustable in the longitudinal direction in the backrest. In addition, the headrest is connected by a linkage which is pivotably connected on a second axis offset from the first axis so that movement of the linkage causes tilting of the headrest. The linkage is shifted as the headrest carrier is extended and contracted.

摘要翻译： 牙科诊疗椅在头枕托架上具有可调头枕。 头枕可围绕支撑构件上的横向第一轴线枢转地铰接，该支撑构件又在靠背中沿纵向方向可调节。 此外，头枕通过联动装置连接，该联动装置在与第一轴线偏移的第二轴线上可枢转地连接，使得连杆的运动引起头枕的倾斜。 当头枕承运人延伸和收缩时，联动会转移。

公开(公告)号：US5348375A

公开(公告)日：1994-09-20

申请号：US890809

申请日：1992-06-01

申请人： Ulrich Steininger

发明人： Ulrich Steininger

IPC分类号： A61G15/04 ,  A47C1/024 ,  A61G15/02 ,  B60N2/02

CPC分类号： A61G15/02 ,  A47C1/0242

摘要： 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 As a result, the backrest carrier is moved under the seat when the backrest is inclined backward and, in turn, is withdrawn from within the seat when the backrest is moved forward to an upright position.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.

摘要翻译： 牙科诊疗椅设置有靠背，该靠背在座椅上倾斜地配置有靠背托架，并且朝向和远离座椅调节，使得靠背托架和座椅分别设置有弯曲路径，在该路径中适当的导轨 元素被分配。 结果，当靠背向后倾斜时，靠背托架在座椅下方移动，并且当靠背向前移动到直立位置时，靠背托架从座椅内撤出。 为了实现靠背的最佳运动顺序，座椅和靠背的两个弯曲路径的曲率被设计成使得当倾斜时靠背转动的瞬时极不是恒定的，而是相反地移动 在螺旋曲线的一部分上，优选地向上打开并沿与靠背倾斜运动相同的方向前进。