Occupant Support With A Translatable and Parallel Translatable Upper Body Section

• US 20140013512A1
• Filed: 09/12/2013
• Published: 01/16/2014
• Est. Priority Date: 11/17/2008
• Status: Active Grant

• Current Assignee: Hill-Rom Services Incorporated (Baxter International Inc.)
• Original Assignee: Hill-Rom Services Incorporated (Baxter International Inc.)
• Inventors: Turner, Jonathan D., Heimbrock, Richard H., Ernst, Joseph A.
• Granted Patent: US 9,956,127 B2
• Time in Patent Office: Days
• US Class Current: 5/618
• CPC Class Codes: A47C 19/04 Extensible bedsteads, e.g. with adjustment of length, width, height for children's beds A47D7/00
• CPC Class Codes: A61G 2203/74 for anti-shear when adjusting furniture
• CPC Class Codes: A61G 7/015 divided into different adjustable sections, e.g. for Gatch position
• CPC Class Codes: A61G 7/018 Control or drive mechanisms

Abstract

An occupant support system for supporting an occupant comprises a frame, an articulable assembly which includes an upper body section, and a motion control system arranged to rotate the upper body section by an amount Δα relative to the frame, to translate the upper body section along the frame by an amount ΔCS, and to translate the upper body section by an amount ΔBS in a direction parallel to the upper body section. Both ΔBS and ΔCS are a function of Δα.

Claims

1. An occupant support system for supporting an occupant, comprising:

a frame;

an articulable assembly comprising an upper body section; and

a motion control system arranged to rotate the upper body section by an amount Δ

α

relative to the frame, to translate the upper body section along the frame by an amount Δ

CS, and to translate the upper body section by an amount Δ

BS in a direction parallel to the upper body section, both Δ

BS and Δ

CS being a function of Δ

α

.

2. The support system of claim 1 wherein the articulable assembly comprises a leg section which is translatable by the motion control system.

3. The support system of claim 2 wherein the upper body section and the leg section are the only sections of the articulable assembly.

4. The support system of claim 1 comprising a translatable seat section longitudinally footwardly of the upper body section, motion of the seat section being ungoverned by the motion control system.

5. The support system of claim 1 wherein the motion control system moves the articulable assembly based on a single occupant non-specific relationship relating the motion of the articulable assembly to anthropometric information representative of a target population of occupants.

6. The support system of claim 1 wherein the motion control system moves the articulable assembly based on multiple, occupant specific relationships relating the motion of the articulable assembly to occupant anthropometric characteristics.

7. The support system of claim 6 wherein the anthropometric characteristics are determined from occupant gender, height and weight.

8. The support system of claim 6 wherein the anthropometric characteristics include at least dimensions B_{ANTHRO-FEMALE}, C_{ANTHRO-FEMALE}, B_ANTHRO-MALE, and C_ANTHRO-MALE.

9. The support system of claim 8 wherein B_{ANTHRO-FEMALE}, C_{ANTHRO-FEMALE}, B_ANTHRO-MALE, and C_ANTHRO-MALE are determined from a linear relationship to occupant weight/height ratio.

10. The support system of claim 6 wherein the occupant anthropometric characteristics are determined at least in part from a bed on-board system.

11. The support system of claim 1 wherein:

the motion control system translates and parallel translates the upper body section headwardly in conjunction with rotating the upper body section in a positive rotational direction, the positive rotational direction being a direction that increases an angle between the upper body section and the frame; and

the motion control system translates and parallel translates the upper body section footwardly in conjunction with rotating the upper body section in a negative rotational direction, the negative rotational direction being a direction that decreases the angle between the upper body section and the frame.

12. The support system of claim 1, comprising:

a translatable leg section;

wherein the motion control system is adapted to;

rotate the upper body section in a positive direction, the positive direction being a direction that increases an angle between the upper body section and the frame;

parallel translate the upper body section headwardly in conjunction with the positive rotation;

translate the upper body section headwardly by the amount Δ

CS in conjunction with the positive rotation; and

if the distance Δ

CS is less than a desired distance by an amount h, translate the leg section footwardly by the amount h.

13. The support system of claim 1, comprising:

a translatable leg section;

wherein the motion control is adapted to;

rotate the upper body section in a positive direction, the positive direction being a direction that increases an angle between the upper body section and the frame;

parallel translate the upper body section headwardly in conjunction with the positive rotation;

translate the upper body section headwardly by the amount Δ

CS in conjunction with the positive rotation; and

if the distance Δ

CS is more than a desired distance by an amount k, translate the leg section headwardly by the amount k.

14. The support system of claim 1, comprising:

a translatable leg section;

wherein the motion control system is adapted to;

rotate the upper body section in a positive direction, the positive direction being a direction that increases an angle between the upper body section and the frame;

parallel translate the upper body section headwardly in conjunction with the positive rotation;

translate the upper body section headwardly by the amount Δ

CS in conjunction with the positive rotation and

if Δ

CS is less than a desired distance by an amount h, translate the leg section footwardly by the amount h and;

if Δ

CS is more than the desired distance by an amount k, translate the leg section headwardly by the amount k.