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    • 3. 发明授权
    • Articulated bed incorporating a single motor drive mechanism
    • 铰接床结合单个电机驱动机构
    • US06230346B1
    • 2001-05-15
    • US09329547
    • 1999-06-10
    • Rodney A. BransonMark W. HarmsenWilliam W. BaierKeith Cramer
    • Rodney A. BransonMark W. HarmsenWilliam W. BaierKeith Cramer
    • A61G7015
    • A47C20/08A47C20/041A61G7/015
    • An articulated bed assembly includes a stationary frame structure to which an upper body support section and a lower body support section are pivotably mounted for movement between raised and lowered positions. An actuator arrangement includes an actuator member which is adapted for extension and retraction in response to operation of an operating arrangement such as a drive motor. The actuator member is interconnected with the upper body support section through a drive member for raising and lowering the upper body support section in response to extension and retraction of the actuator member. An operating mechanism is interconnected between the actuator member and the lower body support section for lifting and lowering the lower body support section in response to extension and retraction of the actuator member. The operating mechanism includes a linkage arrangement defining a first link pivotably mounted to the stationary frame assembly and a second link pivotably mounted to the actuator member. The first and second links are pivotably interconnected together, and a lift arm is interconnected between one of the links and the lower body support section. The first and second link members define a scissors-type linkage, which is movable in response to extension and retraction of the actuator member to lift and lower the lower body support section through the lift arm. The first link is interconnected with the actuator member through a variable position connection arrangement, for adjusting the degree of elevation of the lower body support section relative to the upper body support section upon full extension of the actuator member. In addition, the drive mechanism can be disengaged from the actuator member for preventing elevation of the lower body support section upon extension of the actuator member to raise the upper body support section.
    • 铰接床组件包括固定框架结构,上部本体支撑部分和下部主体支撑部分可枢转地安装在该固定框架结构上,用于在升高和降低位置之间移动。 致动器装置包括致动器构件,该致动器构件响应于诸如驱动马达的操作装置的操作而适于伸出和缩回。 致动器构件通过驱动构件与上身支撑部分相互连接,用于响应于致动器构件的伸出和缩回而升高和降低上身支撑部分。 操作机构在致动器构件和下主体支撑部分之间互连,用于响应于致动器构件的伸出和缩回来升降下部主体支撑部分。 操作机构包括连接装置,其限定可枢转地安装到固定框架组件的第一连杆和可枢转地安装到致动器构件的第二连杆。 第一和第二连杆可枢转地互连在一起,并且提升臂在一个链节和下主体支撑部分之间相互连接。 第一和第二连杆构件限定剪刀型联动装置,其可响应致动器构件的伸缩而移动,以通过提升臂提升和降下下主体支撑部分。 第一连杆通过可变位置连接装置与致动器构件互连,用于在致动器构件完全延伸时调节下主体支撑部分相对于上主体支撑部分的升高程度。 此外,驱动机构可以与致动器构件脱离,以防止在致动器构件延伸时使下主体支撑部分升高以升高上身支撑部。