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US 9,314,385 B2Granted
Piece of furniture, such as an adjustable bed, having an adjustable platform
AssigneePratt & Whitney Canada Corp.
InventorRobert Jutras
Life of this patent
Estimating the term…
Abstract
An adjustable bed includes a main frame which supports a mattress platform, a fixed frame base having wheels mounted thereto for displacement thereof on a floor surface, and a lift mechanism interconnecting the main frame and the fixed frame base. The lift mechanism supports the main frame and is actuated to displace and position the main frame between a fully collapsed position and a fully elevated position relative to the fixed frame base without any longitudinal displacement of the bed. The main frame, the fixed base and the lift mechanism collapse into a low profile bed configuration in the fully collapsed position, such that the mattress platform is located at a minimum vertical height of at most 9 inches above the floor surface.
Claims31
An adjustable bed comprising:
- a main frame having one or more longitudinally extending, transversely spaced apart, beams which support a mattress platform;
- a fixed frame base having wheels for displacement of the fixed frame base on a floor surface, the fixed frame base at least partially lying in a plane substantially parallel to the floor surface, and the wheels remaining in fixed locations on the fixed frame base regardless of a vertical position of the main frame relative to the fixed frame base;
- and
- a lift mechanism interconnecting the main frame and the fixed frame base, the lift mechanism supporting the main frame and being actuable to displace the main frame between a fully collapsed position and a fully elevated position relative to the fixed frame base without any longitudinal displacement of the bed on the floor surface, the lift mechanism including at least:
- two or more leg members each having a first end pivotally connected with the fixed frame base at a lower pivot and a second end pivotally connected with the main frame at a movable upper pivot;
- at least one stabilizer link for each said leg member, the stabilizer link having an upper end pivotally connected with the main frame and a lower end pivotally connected with each said leg member at an intermediate pivot point disposed on the leg member between the first and second ends thereof, the stabilizer link including a torque arm having a remote end disposed a distance away from the upper end of the stabilizer link;
- and
- an actuating assembly including at least one actuator having a first end engaged to the main frame, and a force multiplying actuating linkage interconnecting the actuator and the stabilizer link, the force multi actuating linkage having a driving link and an intermediate link, the driving link having an upper end pivotally mounted to the main frame and a lower end pivotally connected to a second end of the actuator, and the intermediate link having a first end pivotally connected to the driving link between the upper and lower ends thereof and an opposed second end pivotally connected with the remote end of the torque arm.
5 more elements
A piece of furniture having an adjustable platform comprising:
- a main frame having a support platform mounted thereon;
- wheels mounted to the main frame for displacement on a floor surface;
- and
- a lift mechanism supporting the main frame and interconnecting the main frame to the wheels, the lift mechanism being actuable to displace the main frame at any point between a fully collapsed position, wherein the support platform is located at a minimum vertical height above the floor surface, and a fully extended position, wherein the support platform is located at a maximum vertical height above the floor surface, the lift mechanism comprising:
- two or more leg members each having a first end pivotally connected with a corresponding wheel at a lower pivot and a second end pivotally connected with the main frame at a movable upper pivot, the movable upper pivot of each said leg member being slidingly displaceable within a track defined within longitudinally extending beams of the main frame, the movable upper pivot of each said leg member displacing along an axis defined by the track;
- at least one stabilizer link for each said leg member, the stabilizer link having an upper end pivotally connected with the main frame and a lower end pivotally connected with each said leg member at an intermediate pivot point disposed on the leg member between the first and second ends thereof, the stabilizer link including a torque arm having a remote end disposed a distance away from the upper end of the stabilizer link;
- and
- an actuating assembly including at least one actuator having a first end engaged to the main frame, and a force multiplying actuating linkage interconnecting the actuator and the stabilizer link, the force multiplying actuating linkage having a driving link and an intermediate link, the driving link having an upper end pivotally mounted to the main frame, the actuator acting upon the driving link to pivot the driving link about the upper end, and the intermediate link having a first end pivotally connected to the driving link spaced apart from the upper end thereof and an opposed second end pivotally connected with the remote end of the torque arm.
5 more elements
Dependencies are inferred from the claim text.